From: Arnd Bergmann Date: Tue, 25 Jan 2011 22:17:27 +0000 (+0100) Subject: appletalk: move to staging X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a6238f21736af3f47bdebf3895f477f5f23f1af9;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git appletalk: move to staging For all I know, Appletalk is dead, the only reasonable use right now would be nostalgia, and that can be served well enough by old kernels. The code is largely not in a bad shape, but it still uses the big kernel lock, and nobody seems motivated to change that. FWIW, the last release of MacOS that supported Appletalk was MacOS X 10.5, made in 2007, and it has been abandoned by Apple with 10.6. Using TCP/IP instead of Appletalk has been supported since MacOS 7.6, which was released in 1997 and is able to run on most of the legacy hardware. Signed-off-by: Arnd Bergmann Cc: Arnaldo Carvalho de Melo Cc: netdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/MAINTAINERS b/MAINTAINERS index dd6ca456cde3..3118d67d68fb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -554,8 +554,7 @@ F: drivers/hwmon/applesmc.c APPLETALK NETWORK LAYER M: Arnaldo Carvalho de Melo S: Maintained -F: drivers/net/appletalk/ -F: net/appletalk/ +F: drivers/staging/appletalk/ ARC FRAMEBUFFER DRIVER M: Jaya Kumar diff --git a/drivers/net/Makefile b/drivers/net/Makefile index b90738d13994..11a9c053f0c8 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -265,7 +265,6 @@ obj-$(CONFIG_MACB) += macb.o obj-$(CONFIG_S6GMAC) += s6gmac.o obj-$(CONFIG_ARM) += arm/ -obj-$(CONFIG_DEV_APPLETALK) += appletalk/ obj-$(CONFIG_TR) += tokenring/ obj-$(CONFIG_WAN) += wan/ obj-$(CONFIG_ARCNET) += arcnet/ diff --git a/drivers/net/appletalk/Kconfig b/drivers/net/appletalk/Kconfig deleted file mode 100644 index 0b376a990972..000000000000 --- a/drivers/net/appletalk/Kconfig +++ /dev/null @@ -1,126 +0,0 @@ -# -# Appletalk driver configuration -# -config ATALK - tristate "Appletalk protocol support" - depends on BKL # waiting to be removed from net/appletalk/ddp.c - select LLC - ---help--- - AppleTalk is the protocol that Apple computers can use to communicate - on a network. If your Linux box is connected to such a network and you - wish to connect to it, say Y. You will need to use the netatalk package - so that your Linux box can act as a print and file server for Macs as - well as access AppleTalk printers. Check out - on the WWW for details. - EtherTalk is the name used for AppleTalk over Ethernet and the - cheaper and slower LocalTalk is AppleTalk over a proprietary Apple - network using serial links. EtherTalk and LocalTalk are fully - supported by Linux. - - General information about how to connect Linux, Windows machines and - Macs is on the WWW at . The - NET3-4-HOWTO, available from - , contains valuable - information as well. - - To compile this driver as a module, choose M here: the module will be - called appletalk. You almost certainly want to compile it as a - module so you can restart your AppleTalk stack without rebooting - your machine. I hear that the GNU boycott of Apple is over, so - even politically correct people are allowed to say Y here. - -config DEV_APPLETALK - tristate "Appletalk interfaces support" - depends on ATALK - help - AppleTalk is the protocol that Apple computers can use to communicate - on a network. If your Linux box is connected to such a network, and wish - to do IP over it, or you have a LocalTalk card and wish to use it to - connect to the AppleTalk network, say Y. - - -config LTPC - tristate "Apple/Farallon LocalTalk PC support" - depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API - help - This allows you to use the AppleTalk PC card to connect to LocalTalk - networks. The card is also known as the Farallon PhoneNet PC card. - If you are in doubt, this card is the one with the 65C02 chip on it. - You also need version 1.3.3 or later of the netatalk package. - This driver is experimental, which means that it may not work. - See the file . - -config COPS - tristate "COPS LocalTalk PC support" - depends on DEV_APPLETALK && (ISA || EISA) - help - This allows you to use COPS AppleTalk cards to connect to LocalTalk - networks. You also need version 1.3.3 or later of the netatalk - package. This driver is experimental, which means that it may not - work. This driver will only work if you choose "AppleTalk DDP" - networking support, above. - Please read the file . - -config COPS_DAYNA - bool "Dayna firmware support" - depends on COPS - help - Support COPS compatible cards with Dayna style firmware (Dayna - DL2000/ Daynatalk/PC (half length), COPS LT-95, Farallon PhoneNET PC - III, Farallon PhoneNET PC II). - -config COPS_TANGENT - bool "Tangent firmware support" - depends on COPS - help - Support COPS compatible cards with Tangent style firmware (Tangent - ATB_II, Novell NL-1000, Daystar Digital LT-200. - -config IPDDP - tristate "Appletalk-IP driver support" - depends on DEV_APPLETALK && ATALK - ---help--- - This allows IP networking for users who only have AppleTalk - networking available. This feature is experimental. With this - driver, you can encapsulate IP inside AppleTalk (e.g. if your Linux - box is stuck on an AppleTalk only network) or decapsulate (e.g. if - you want your Linux box to act as an Internet gateway for a zoo of - AppleTalk connected Macs). Please see the file - for more information. - - If you say Y here, the AppleTalk-IP support will be compiled into - the kernel. In this case, you can either use encapsulation or - decapsulation, but not both. With the following two questions, you - decide which one you want. - - To compile the AppleTalk-IP support as a module, choose M here: the - module will be called ipddp. - In this case, you will be able to use both encapsulation and - decapsulation simultaneously, by loading two copies of the module - and specifying different values for the module option ipddp_mode. - -config IPDDP_ENCAP - bool "IP to Appletalk-IP Encapsulation support" - depends on IPDDP - help - If you say Y here, the AppleTalk-IP code will be able to encapsulate - IP packets inside AppleTalk frames; this is useful if your Linux box - is stuck on an AppleTalk network (which hopefully contains a - decapsulator somewhere). Please see - for more information. If - you said Y to "AppleTalk-IP driver support" above and you say Y - here, then you cannot say Y to "AppleTalk-IP to IP Decapsulation - support", below. - -config IPDDP_DECAP - bool "Appletalk-IP to IP Decapsulation support" - depends on IPDDP - help - If you say Y here, the AppleTalk-IP code will be able to decapsulate - AppleTalk-IP frames to IP packets; this is useful if you want your - Linux box to act as an Internet gateway for an AppleTalk network. - Please see for more - information. If you said Y to "AppleTalk-IP driver support" above - and you say Y here, then you cannot say Y to "IP to AppleTalk-IP - Encapsulation support", above. - diff --git a/drivers/net/appletalk/Makefile b/drivers/net/appletalk/Makefile deleted file mode 100644 index 6cfc705f7c5c..000000000000 --- a/drivers/net/appletalk/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for drivers/net/appletalk -# - -obj-$(CONFIG_IPDDP) += ipddp.o -obj-$(CONFIG_COPS) += cops.o -obj-$(CONFIG_LTPC) += ltpc.o diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c deleted file mode 100644 index 748c9f526e71..000000000000 --- a/drivers/net/appletalk/cops.c +++ /dev/null @@ -1,1013 +0,0 @@ -/* cops.c: LocalTalk driver for Linux. - * - * Authors: - * - Jay Schulist - * - * With more than a little help from; - * - Alan Cox - * - * Derived from: - * - skeleton.c: A network driver outline for linux. - * Written 1993-94 by Donald Becker. - * - ltpc.c: A driver for the LocalTalk PC card. - * Written by Bradford W. Johnson. - * - * Copyright 1993 United States Government as represented by the - * Director, National Security Agency. - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - * Changes: - * 19970608 Alan Cox Allowed dual card type support - * Can set board type in insmod - * Hooks for cops_setup routine - * (not yet implemented). - * 19971101 Jay Schulist Fixes for multiple lt* devices. - * 19980607 Steven Hirsch Fixed the badly broken support - * for Tangent type cards. Only - * tested on Daystar LT200. Some - * cleanup of formatting and program - * logic. Added emacs 'local-vars' - * setup for Jay's brace style. - * 20000211 Alan Cox Cleaned up for softnet - */ - -static const char *version = -"cops.c:v0.04 6/7/98 Jay Schulist \n"; -/* - * Sources: - * COPS Localtalk SDK. This provides almost all of the information - * needed. - */ - -/* - * insmod/modprobe configurable stuff. - * - IO Port, choose one your card supports or 0 if you dare. - * - IRQ, also choose one your card supports or nothing and let - * the driver figure it out. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include /* For udelay() */ -#include -#include -#include -#include - -#include -#include -#include - -#include "cops.h" /* Our Stuff */ -#include "cops_ltdrv.h" /* Firmware code for Tangent type cards. */ -#include "cops_ffdrv.h" /* Firmware code for Dayna type cards. */ - -/* - * The name of the card. Is used for messages and in the requests for - * io regions, irqs and dma channels - */ - -static const char *cardname = "cops"; - -#ifdef CONFIG_COPS_DAYNA -static int board_type = DAYNA; /* Module exported */ -#else -static int board_type = TANGENT; -#endif - -static int io = 0x240; /* Default IO for Dayna */ -static int irq = 5; /* Default IRQ */ - -/* - * COPS Autoprobe information. - * Right now if port address is right but IRQ is not 5 this will - * return a 5 no matter what since we will still get a status response. - * Need one more additional check to narrow down after we have gotten - * the ioaddr. But since only other possible IRQs is 3 and 4 so no real - * hurry on this. I *STRONGLY* recommend using IRQ 5 for your card with - * this driver. - * - * This driver has 2 modes and they are: Dayna mode and Tangent mode. - * Each mode corresponds with the type of card. It has been found - * that there are 2 main types of cards and all other cards are - * the same and just have different names or only have minor differences - * such as more IO ports. As this driver is tested it will - * become more clear on exactly what cards are supported. The driver - * defaults to using Dayna mode. To change the drivers mode, simply - * select Dayna or Tangent mode when configuring the kernel. - * - * This driver should support: - * TANGENT driver mode: - * Tangent ATB-II, Novell NL-1000, Daystar Digital LT-200, - * COPS LT-1 - * DAYNA driver mode: - * Dayna DL2000/DaynaTalk PC (Half Length), COPS LT-95, - * Farallon PhoneNET PC III, Farallon PhoneNET PC II - * Other cards possibly supported mode unknown though: - * Dayna DL2000 (Full length), COPS LT/M (Micro-Channel) - * - * Cards NOT supported by this driver but supported by the ltpc.c - * driver written by Bradford W. Johnson - * Farallon PhoneNET PC - * Original Apple LocalTalk PC card - * - * N.B. - * - * The Daystar Digital LT200 boards do not support interrupt-driven - * IO. You must specify 'irq=0xff' as a module parameter to invoke - * polled mode. I also believe that the port probing logic is quite - * dangerous at best and certainly hopeless for a polled card. Best to - * specify both. - Steve H. - * - */ - -/* - * Zero terminated list of IO ports to probe. - */ - -static unsigned int ports[] = { - 0x240, 0x340, 0x200, 0x210, 0x220, 0x230, 0x260, - 0x2A0, 0x300, 0x310, 0x320, 0x330, 0x350, 0x360, - 0 -}; - -/* - * Zero terminated list of IRQ ports to probe. - */ - -static int cops_irqlist[] = { - 5, 4, 3, 0 -}; - -static struct timer_list cops_timer; - -/* use 0 for production, 1 for verification, 2 for debug, 3 for verbose debug */ -#ifndef COPS_DEBUG -#define COPS_DEBUG 1 -#endif -static unsigned int cops_debug = COPS_DEBUG; - -/* The number of low I/O ports used by the card. */ -#define COPS_IO_EXTENT 8 - -/* Information that needs to be kept for each board. */ - -struct cops_local -{ - int board; /* Holds what board type is. */ - int nodeid; /* Set to 1 once have nodeid. */ - unsigned char node_acquire; /* Node ID when acquired. */ - struct atalk_addr node_addr; /* Full node address */ - spinlock_t lock; /* RX/TX lock */ -}; - -/* Index to functions, as function prototypes. */ -static int cops_probe1 (struct net_device *dev, int ioaddr); -static int cops_irq (int ioaddr, int board); - -static int cops_open (struct net_device *dev); -static int cops_jumpstart (struct net_device *dev); -static void cops_reset (struct net_device *dev, int sleep); -static void cops_load (struct net_device *dev); -static int cops_nodeid (struct net_device *dev, int nodeid); - -static irqreturn_t cops_interrupt (int irq, void *dev_id); -static void cops_poll (unsigned long ltdev); -static void cops_timeout(struct net_device *dev); -static void cops_rx (struct net_device *dev); -static netdev_tx_t cops_send_packet (struct sk_buff *skb, - struct net_device *dev); -static void set_multicast_list (struct net_device *dev); -static int cops_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); -static int cops_close (struct net_device *dev); - -static void cleanup_card(struct net_device *dev) -{ - if (dev->irq) - free_irq(dev->irq, dev); - release_region(dev->base_addr, COPS_IO_EXTENT); -} - -/* - * Check for a network adaptor of this type, and return '0' iff one exists. - * If dev->base_addr == 0, probe all likely locations. - * If dev->base_addr in [1..0x1ff], always return failure. - * otherwise go with what we pass in. - */ -struct net_device * __init cops_probe(int unit) -{ - struct net_device *dev; - unsigned *port; - int base_addr; - int err = 0; - - dev = alloc_ltalkdev(sizeof(struct cops_local)); - if (!dev) - return ERR_PTR(-ENOMEM); - - if (unit >= 0) { - sprintf(dev->name, "lt%d", unit); - netdev_boot_setup_check(dev); - irq = dev->irq; - base_addr = dev->base_addr; - } else { - base_addr = dev->base_addr = io; - } - - if (base_addr > 0x1ff) { /* Check a single specified location. */ - err = cops_probe1(dev, base_addr); - } else if (base_addr != 0) { /* Don't probe at all. */ - err = -ENXIO; - } else { - /* FIXME Does this really work for cards which generate irq? - * It's definitely N.G. for polled Tangent. sh - * Dayna cards don't autoprobe well at all, but if your card is - * at IRQ 5 & IO 0x240 we find it every time. ;) JS - */ - for (port = ports; *port && cops_probe1(dev, *port) < 0; port++) - ; - if (!*port) - err = -ENODEV; - } - if (err) - goto out; - err = register_netdev(dev); - if (err) - goto out1; - return dev; -out1: - cleanup_card(dev); -out: - free_netdev(dev); - return ERR_PTR(err); -} - -static const struct net_device_ops cops_netdev_ops = { - .ndo_open = cops_open, - .ndo_stop = cops_close, - .ndo_start_xmit = cops_send_packet, - .ndo_tx_timeout = cops_timeout, - .ndo_do_ioctl = cops_ioctl, - .ndo_set_multicast_list = set_multicast_list, -}; - -/* - * This is the real probe routine. Linux has a history of friendly device - * probes on the ISA bus. A good device probes avoids doing writes, and - * verifies that the correct device exists and functions. - */ -static int __init cops_probe1(struct net_device *dev, int ioaddr) -{ - struct cops_local *lp; - static unsigned version_printed; - int board = board_type; - int retval; - - if(cops_debug && version_printed++ == 0) - printk("%s", version); - - /* Grab the region so no one else tries to probe our ioports. */ - if (!request_region(ioaddr, COPS_IO_EXTENT, dev->name)) - return -EBUSY; - - /* - * Since this board has jumpered interrupts, allocate the interrupt - * vector now. There is no point in waiting since no other device - * can use the interrupt, and this marks the irq as busy. Jumpered - * interrupts are typically not reported by the boards, and we must - * used AutoIRQ to find them. - */ - dev->irq = irq; - switch (dev->irq) - { - case 0: - /* COPS AutoIRQ routine */ - dev->irq = cops_irq(ioaddr, board); - if (dev->irq) - break; - /* No IRQ found on this port, fallthrough */ - case 1: - retval = -EINVAL; - goto err_out; - - /* Fixup for users that don't know that IRQ 2 is really - * IRQ 9, or don't know which one to set. - */ - case 2: - dev->irq = 9; - break; - - /* Polled operation requested. Although irq of zero passed as - * a parameter tells the init routines to probe, we'll - * overload it to denote polled operation at runtime. - */ - case 0xff: - dev->irq = 0; - break; - - default: - break; - } - - /* Reserve any actual interrupt. */ - if (dev->irq) { - retval = request_irq(dev->irq, cops_interrupt, 0, dev->name, dev); - if (retval) - goto err_out; - } - - dev->base_addr = ioaddr; - - lp = netdev_priv(dev); - spin_lock_init(&lp->lock); - - /* Copy local board variable to lp struct. */ - lp->board = board; - - dev->netdev_ops = &cops_netdev_ops; - dev->watchdog_timeo = HZ * 2; - - - /* Tell the user where the card is and what mode we're in. */ - if(board==DAYNA) - printk("%s: %s at %#3x, using IRQ %d, in Dayna mode.\n", - dev->name, cardname, ioaddr, dev->irq); - if(board==TANGENT) { - if(dev->irq) - printk("%s: %s at %#3x, IRQ %d, in Tangent mode\n", - dev->name, cardname, ioaddr, dev->irq); - else - printk("%s: %s at %#3x, using polled IO, in Tangent mode.\n", - dev->name, cardname, ioaddr); - - } - return 0; - -err_out: - release_region(ioaddr, COPS_IO_EXTENT); - return retval; -} - -static int __init cops_irq (int ioaddr, int board) -{ /* - * This does not use the IRQ to determine where the IRQ is. We just - * assume that when we get a correct status response that it's the IRQ. - * This really just verifies the IO port but since we only have access - * to such a small number of IRQs (5, 4, 3) this is not bad. - * This will probably not work for more than one card. - */ - int irqaddr=0; - int i, x, status; - - if(board==DAYNA) - { - outb(0, ioaddr+DAYNA_RESET); - inb(ioaddr+DAYNA_RESET); - mdelay(333); - } - if(board==TANGENT) - { - inb(ioaddr); - outb(0, ioaddr); - outb(0, ioaddr+TANG_RESET); - } - - for(i=0; cops_irqlist[i] !=0; i++) - { - irqaddr = cops_irqlist[i]; - for(x = 0xFFFF; x>0; x --) /* wait for response */ - { - if(board==DAYNA) - { - status = (inb(ioaddr+DAYNA_CARD_STATUS)&3); - if(status == 1) - return irqaddr; - } - if(board==TANGENT) - { - if((inb(ioaddr+TANG_CARD_STATUS)& TANG_TX_READY) !=0) - return irqaddr; - } - } - } - return 0; /* no IRQ found */ -} - -/* - * Open/initialize the board. This is called (in the current kernel) - * sometime after booting when the 'ifconfig' program is run. - */ -static int cops_open(struct net_device *dev) -{ - struct cops_local *lp = netdev_priv(dev); - - if(dev->irq==0) - { - /* - * I don't know if the Dayna-style boards support polled - * operation. For now, only allow it for Tangent. - */ - if(lp->board==TANGENT) /* Poll 20 times per second */ - { - init_timer(&cops_timer); - cops_timer.function = cops_poll; - cops_timer.data = (unsigned long)dev; - cops_timer.expires = jiffies + HZ/20; - add_timer(&cops_timer); - } - else - { - printk(KERN_WARNING "%s: No irq line set\n", dev->name); - return -EAGAIN; - } - } - - cops_jumpstart(dev); /* Start the card up. */ - - netif_start_queue(dev); - return 0; -} - -/* - * This allows for a dynamic start/restart of the entire card. - */ -static int cops_jumpstart(struct net_device *dev) -{ - struct cops_local *lp = netdev_priv(dev); - - /* - * Once the card has the firmware loaded and has acquired - * the nodeid, if it is reset it will lose it all. - */ - cops_reset(dev,1); /* Need to reset card before load firmware. */ - cops_load(dev); /* Load the firmware. */ - - /* - * If atalkd already gave us a nodeid we will use that - * one again, else we wait for atalkd to give us a nodeid - * in cops_ioctl. This may cause a problem if someone steals - * our nodeid while we are resetting. - */ - if(lp->nodeid == 1) - cops_nodeid(dev,lp->node_acquire); - - return 0; -} - -static void tangent_wait_reset(int ioaddr) -{ - int timeout=0; - - while(timeout++ < 5 && (inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0) - mdelay(1); /* Wait 1 second */ -} - -/* - * Reset the LocalTalk board. - */ -static void cops_reset(struct net_device *dev, int sleep) -{ - struct cops_local *lp = netdev_priv(dev); - int ioaddr=dev->base_addr; - - if(lp->board==TANGENT) - { - inb(ioaddr); /* Clear request latch. */ - outb(0,ioaddr); /* Clear the TANG_TX_READY flop. */ - outb(0, ioaddr+TANG_RESET); /* Reset the adapter. */ - - tangent_wait_reset(ioaddr); - outb(0, ioaddr+TANG_CLEAR_INT); - } - if(lp->board==DAYNA) - { - outb(0, ioaddr+DAYNA_RESET); /* Assert the reset port */ - inb(ioaddr+DAYNA_RESET); /* Clear the reset */ - if (sleep) - msleep(333); - else - mdelay(333); - } - - netif_wake_queue(dev); -} - -static void cops_load (struct net_device *dev) -{ - struct ifreq ifr; - struct ltfirmware *ltf= (struct ltfirmware *)&ifr.ifr_ifru; - struct cops_local *lp = netdev_priv(dev); - int ioaddr=dev->base_addr; - int length, i = 0; - - strcpy(ifr.ifr_name,"lt0"); - - /* Get card's firmware code and do some checks on it. */ -#ifdef CONFIG_COPS_DAYNA - if(lp->board==DAYNA) - { - ltf->length=sizeof(ffdrv_code); - ltf->data=ffdrv_code; - } - else -#endif -#ifdef CONFIG_COPS_TANGENT - if(lp->board==TANGENT) - { - ltf->length=sizeof(ltdrv_code); - ltf->data=ltdrv_code; - } - else -#endif - { - printk(KERN_INFO "%s; unsupported board type.\n", dev->name); - return; - } - - /* Check to make sure firmware is correct length. */ - if(lp->board==DAYNA && ltf->length!=5983) - { - printk(KERN_WARNING "%s: Firmware is not length of FFDRV.BIN.\n", dev->name); - return; - } - if(lp->board==TANGENT && ltf->length!=2501) - { - printk(KERN_WARNING "%s: Firmware is not length of DRVCODE.BIN.\n", dev->name); - return; - } - - if(lp->board==DAYNA) - { - /* - * We must wait for a status response - * with the DAYNA board. - */ - while(++i<65536) - { - if((inb(ioaddr+DAYNA_CARD_STATUS)&3)==1) - break; - } - - if(i==65536) - return; - } - - /* - * Upload the firmware and kick. Byte-by-byte works nicely here. - */ - i=0; - length = ltf->length; - while(length--) - { - outb(ltf->data[i], ioaddr); - i++; - } - - if(cops_debug > 1) - printk("%s: Uploaded firmware - %d bytes of %d bytes.\n", - dev->name, i, ltf->length); - - if(lp->board==DAYNA) /* Tell Dayna to run the firmware code. */ - outb(1, ioaddr+DAYNA_INT_CARD); - else /* Tell Tang to run the firmware code. */ - inb(ioaddr); - - if(lp->board==TANGENT) - { - tangent_wait_reset(ioaddr); - inb(ioaddr); /* Clear initial ready signal. */ - } -} - -/* - * Get the LocalTalk Nodeid from the card. We can suggest - * any nodeid 1-254. The card will try and get that exact - * address else we can specify 0 as the nodeid and the card - * will autoprobe for a nodeid. - */ -static int cops_nodeid (struct net_device *dev, int nodeid) -{ - struct cops_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - if(lp->board == DAYNA) - { - /* Empty any pending adapter responses. */ - while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0) - { - outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupts. */ - if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST) - cops_rx(dev); /* Kick any packets waiting. */ - schedule(); - } - - outb(2, ioaddr); /* Output command packet length as 2. */ - outb(0, ioaddr); - outb(LAP_INIT, ioaddr); /* Send LAP_INIT command byte. */ - outb(nodeid, ioaddr); /* Suggest node address. */ - } - - if(lp->board == TANGENT) - { - /* Empty any pending adapter responses. */ - while(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY) - { - outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupt. */ - cops_rx(dev); /* Kick out packets waiting. */ - schedule(); - } - - /* Not sure what Tangent does if nodeid picked is used. */ - if(nodeid == 0) /* Seed. */ - nodeid = jiffies&0xFF; /* Get a random try */ - outb(2, ioaddr); /* Command length LSB */ - outb(0, ioaddr); /* Command length MSB */ - outb(LAP_INIT, ioaddr); /* Send LAP_INIT byte */ - outb(nodeid, ioaddr); /* LAP address hint. */ - outb(0xFF, ioaddr); /* Int. level to use */ - } - - lp->node_acquire=0; /* Set nodeid holder to 0. */ - while(lp->node_acquire==0) /* Get *True* nodeid finally. */ - { - outb(0, ioaddr+COPS_CLEAR_INT); /* Clear any interrupt. */ - - if(lp->board == DAYNA) - { - if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST) - cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */ - } - if(lp->board == TANGENT) - { - if(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY) - cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */ - } - schedule(); - } - - if(cops_debug > 1) - printk(KERN_DEBUG "%s: Node ID %d has been acquired.\n", - dev->name, lp->node_acquire); - - lp->nodeid=1; /* Set got nodeid to 1. */ - - return 0; -} - -/* - * Poll the Tangent type cards to see if we have work. - */ - -static void cops_poll(unsigned long ltdev) -{ - int ioaddr, status; - int boguscount = 0; - - struct net_device *dev = (struct net_device *)ltdev; - - del_timer(&cops_timer); - - if(dev == NULL) - return; /* We've been downed */ - - ioaddr = dev->base_addr; - do { - status=inb(ioaddr+TANG_CARD_STATUS); - if(status & TANG_RX_READY) - cops_rx(dev); - if(status & TANG_TX_READY) - netif_wake_queue(dev); - status = inb(ioaddr+TANG_CARD_STATUS); - } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY))); - - /* poll 20 times per second */ - cops_timer.expires = jiffies + HZ/20; - add_timer(&cops_timer); -} - -/* - * The typical workload of the driver: - * Handle the network interface interrupts. - */ -static irqreturn_t cops_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct cops_local *lp; - int ioaddr, status; - int boguscount = 0; - - ioaddr = dev->base_addr; - lp = netdev_priv(dev); - - if(lp->board==DAYNA) - { - do { - outb(0, ioaddr + COPS_CLEAR_INT); - status=inb(ioaddr+DAYNA_CARD_STATUS); - if((status&0x03)==DAYNA_RX_REQUEST) - cops_rx(dev); - netif_wake_queue(dev); - } while(++boguscount < 20); - } - else - { - do { - status=inb(ioaddr+TANG_CARD_STATUS); - if(status & TANG_RX_READY) - cops_rx(dev); - if(status & TANG_TX_READY) - netif_wake_queue(dev); - status=inb(ioaddr+TANG_CARD_STATUS); - } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY))); - } - - return IRQ_HANDLED; -} - -/* - * We have a good packet(s), get it/them out of the buffers. - */ -static void cops_rx(struct net_device *dev) -{ - int pkt_len = 0; - int rsp_type = 0; - struct sk_buff *skb = NULL; - struct cops_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - int boguscount = 0; - unsigned long flags; - - - spin_lock_irqsave(&lp->lock, flags); - - if(lp->board==DAYNA) - { - outb(0, ioaddr); /* Send out Zero length. */ - outb(0, ioaddr); - outb(DATA_READ, ioaddr); /* Send read command out. */ - - /* Wait for DMA to turn around. */ - while(++boguscount<1000000) - { - barrier(); - if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_READY) - break; - } - - if(boguscount==1000000) - { - printk(KERN_WARNING "%s: DMA timed out.\n",dev->name); - spin_unlock_irqrestore(&lp->lock, flags); - return; - } - } - - /* Get response length. */ - if(lp->board==DAYNA) - pkt_len = inb(ioaddr) & 0xFF; - else - pkt_len = inb(ioaddr) & 0x00FF; - pkt_len |= (inb(ioaddr) << 8); - /* Input IO code. */ - rsp_type=inb(ioaddr); - - /* Malloc up new buffer. */ - skb = dev_alloc_skb(pkt_len); - if(skb == NULL) - { - printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", - dev->name); - dev->stats.rx_dropped++; - while(pkt_len--) /* Discard packet */ - inb(ioaddr); - spin_unlock_irqrestore(&lp->lock, flags); - return; - } - skb->dev = dev; - skb_put(skb, pkt_len); - skb->protocol = htons(ETH_P_LOCALTALK); - - insb(ioaddr, skb->data, pkt_len); /* Eat the Data */ - - if(lp->board==DAYNA) - outb(1, ioaddr+DAYNA_INT_CARD); /* Interrupt the card */ - - spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */ - - /* Check for bad response length */ - if(pkt_len < 0 || pkt_len > MAX_LLAP_SIZE) - { - printk(KERN_WARNING "%s: Bad packet length of %d bytes.\n", - dev->name, pkt_len); - dev->stats.tx_errors++; - dev_kfree_skb_any(skb); - return; - } - - /* Set nodeid and then get out. */ - if(rsp_type == LAP_INIT_RSP) - { /* Nodeid taken from received packet. */ - lp->node_acquire = skb->data[0]; - dev_kfree_skb_any(skb); - return; - } - - /* One last check to make sure we have a good packet. */ - if(rsp_type != LAP_RESPONSE) - { - printk(KERN_WARNING "%s: Bad packet type %d.\n", dev->name, rsp_type); - dev->stats.tx_errors++; - dev_kfree_skb_any(skb); - return; - } - - skb_reset_mac_header(skb); /* Point to entire packet. */ - skb_pull(skb,3); - skb_reset_transport_header(skb); /* Point to data (Skip header). */ - - /* Update the counters. */ - dev->stats.rx_packets++; - dev->stats.rx_bytes += skb->len; - - /* Send packet to a higher place. */ - netif_rx(skb); -} - -static void cops_timeout(struct net_device *dev) -{ - struct cops_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - - dev->stats.tx_errors++; - if(lp->board==TANGENT) - { - if((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0) - printk(KERN_WARNING "%s: No TX complete interrupt.\n", dev->name); - } - printk(KERN_WARNING "%s: Transmit timed out.\n", dev->name); - cops_jumpstart(dev); /* Restart the card. */ - dev->trans_start = jiffies; /* prevent tx timeout */ - netif_wake_queue(dev); -} - - -/* - * Make the card transmit a LocalTalk packet. - */ - -static netdev_tx_t cops_send_packet(struct sk_buff *skb, - struct net_device *dev) -{ - struct cops_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; - unsigned long flags; - - /* - * Block a timer-based transmit from overlapping. - */ - - netif_stop_queue(dev); - - spin_lock_irqsave(&lp->lock, flags); - if(lp->board == DAYNA) /* Wait for adapter transmit buffer. */ - while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0) - cpu_relax(); - if(lp->board == TANGENT) /* Wait for adapter transmit buffer. */ - while((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0) - cpu_relax(); - - /* Output IO length. */ - outb(skb->len, ioaddr); - if(lp->board == DAYNA) - outb(skb->len >> 8, ioaddr); - else - outb((skb->len >> 8)&0x0FF, ioaddr); - - /* Output IO code. */ - outb(LAP_WRITE, ioaddr); - - if(lp->board == DAYNA) /* Check the transmit buffer again. */ - while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0); - - outsb(ioaddr, skb->data, skb->len); /* Send out the data. */ - - if(lp->board==DAYNA) /* Dayna requires you kick the card */ - outb(1, ioaddr+DAYNA_INT_CARD); - - spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */ - - /* Done sending packet, update counters and cleanup. */ - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - dev_kfree_skb (skb); - return NETDEV_TX_OK; -} - -/* - * Dummy function to keep the Appletalk layer happy. - */ - -static void set_multicast_list(struct net_device *dev) -{ - if(cops_debug >= 3) - printk("%s: set_multicast_list executed\n", dev->name); -} - -/* - * System ioctls for the COPS LocalTalk card. - */ - -static int cops_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct cops_local *lp = netdev_priv(dev); - struct sockaddr_at *sa = (struct sockaddr_at *)&ifr->ifr_addr; - struct atalk_addr *aa = (struct atalk_addr *)&lp->node_addr; - - switch(cmd) - { - case SIOCSIFADDR: - /* Get and set the nodeid and network # atalkd wants. */ - cops_nodeid(dev, sa->sat_addr.s_node); - aa->s_net = sa->sat_addr.s_net; - aa->s_node = lp->node_acquire; - - /* Set broardcast address. */ - dev->broadcast[0] = 0xFF; - - /* Set hardware address. */ - dev->dev_addr[0] = aa->s_node; - dev->addr_len = 1; - return 0; - - case SIOCGIFADDR: - sa->sat_addr.s_net = aa->s_net; - sa->sat_addr.s_node = aa->s_node; - return 0; - - default: - return -EOPNOTSUPP; - } -} - -/* - * The inverse routine to cops_open(). - */ - -static int cops_close(struct net_device *dev) -{ - struct cops_local *lp = netdev_priv(dev); - - /* If we were running polled, yank the timer. - */ - if(lp->board==TANGENT && dev->irq==0) - del_timer(&cops_timer); - - netif_stop_queue(dev); - return 0; -} - - -#ifdef MODULE -static struct net_device *cops_dev; - -MODULE_LICENSE("GPL"); -module_param(io, int, 0); -module_param(irq, int, 0); -module_param(board_type, int, 0); - -static int __init cops_module_init(void) -{ - if (io == 0) - printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n", - cardname); - cops_dev = cops_probe(-1); - if (IS_ERR(cops_dev)) - return PTR_ERR(cops_dev); - return 0; -} - -static void __exit cops_module_exit(void) -{ - unregister_netdev(cops_dev); - cleanup_card(cops_dev); - free_netdev(cops_dev); -} -module_init(cops_module_init); -module_exit(cops_module_exit); -#endif /* MODULE */ diff --git a/drivers/net/appletalk/cops.h b/drivers/net/appletalk/cops.h deleted file mode 100644 index fd2750b269c8..000000000000 --- a/drivers/net/appletalk/cops.h +++ /dev/null @@ -1,60 +0,0 @@ -/* cops.h: LocalTalk driver for Linux. - * - * Authors: - * - Jay Schulist - */ - -#ifndef __LINUX_COPSLTALK_H -#define __LINUX_COPSLTALK_H - -#ifdef __KERNEL__ - -/* Max LLAP size we will accept. */ -#define MAX_LLAP_SIZE 603 - -/* Tangent */ -#define TANG_CARD_STATUS 1 -#define TANG_CLEAR_INT 1 -#define TANG_RESET 3 - -#define TANG_TX_READY 1 -#define TANG_RX_READY 2 - -/* Dayna */ -#define DAYNA_CMD_DATA 0 -#define DAYNA_CLEAR_INT 1 -#define DAYNA_CARD_STATUS 2 -#define DAYNA_INT_CARD 3 -#define DAYNA_RESET 4 - -#define DAYNA_RX_READY 0 -#define DAYNA_TX_READY 1 -#define DAYNA_RX_REQUEST 3 - -/* Same on both card types */ -#define COPS_CLEAR_INT 1 - -/* LAP response codes received from the cards. */ -#define LAP_INIT 1 /* Init cmd */ -#define LAP_INIT_RSP 2 /* Init response */ -#define LAP_WRITE 3 /* Write cmd */ -#define DATA_READ 4 /* Data read */ -#define LAP_RESPONSE 4 /* Received ALAP frame response */ -#define LAP_GETSTAT 5 /* Get LAP and HW status */ -#define LAP_RSPSTAT 6 /* Status response */ - -#endif - -/* - * Structure to hold the firmware information. - */ -struct ltfirmware -{ - unsigned int length; - const unsigned char *data; -}; - -#define DAYNA 1 -#define TANGENT 2 - -#endif diff --git a/drivers/net/appletalk/cops_ffdrv.h b/drivers/net/appletalk/cops_ffdrv.h deleted file mode 100644 index b02005087c1b..000000000000 --- a/drivers/net/appletalk/cops_ffdrv.h +++ /dev/null @@ -1,532 +0,0 @@ - -/* - * The firmware this driver downloads into the Localtalk card is a - * separate program and is not GPL'd source code, even though the Linux - * side driver and the routine that loads this data into the card are. - * - * It is taken from the COPS SDK and is under the following license - * - * This material is licensed to you strictly for use in conjunction with - * the use of COPS LocalTalk adapters. - * There is no charge for this SDK. And no waranty express or implied - * about its fitness for any purpose. However, we will cheerefully - * refund every penny you paid for this SDK... - * Regards, - * - * Thomas F. Divine - * Chief Scientist - */ - - -/* cops_ffdrv.h: LocalTalk driver firmware dump for Linux. - * - * Authors: - * - Jay Schulist - */ - - -#ifdef CONFIG_COPS_DAYNA - -static const unsigned char ffdrv_code[] = { - 58,3,0,50,228,149,33,255,255,34,226,149, - 249,17,40,152,33,202,154,183,237,82,77,68, - 11,107,98,19,54,0,237,176,175,50,80,0, - 62,128,237,71,62,32,237,57,51,62,12,237, - 57,50,237,57,54,62,6,237,57,52,62,12, - 237,57,49,33,107,137,34,32,128,33,83,130, - 34,40,128,33,86,130,34,42,128,33,112,130, - 34,36,128,33,211,130,34,38,128,62,0,237, - 57,16,33,63,148,34,34,128,237,94,205,15, - 130,251,205,168,145,24,141,67,111,112,121,114, - 105,103,104,116,32,40,67,41,32,49,57,56, - 56,32,45,32,68,97,121,110,97,32,67,111, - 109,109,117,110,105,99,97,116,105,111,110,115, - 32,32,32,65,108,108,32,114,105,103,104,116, - 115,32,114,101,115,101,114,118,101,100,46,32, - 32,40,68,40,68,7,16,8,34,7,22,6, - 16,5,12,4,8,3,6,140,0,16,39,128, - 0,4,96,10,224,6,0,7,126,2,64,11, - 118,12,6,13,0,14,193,15,0,5,96,3, - 192,1,64,9,8,62,9,211,66,62,192,211, - 66,62,100,61,32,253,6,28,33,205,129,14, - 66,237,163,194,253,129,6,28,33,205,129,14, - 64,237,163,194,9,130,201,62,47,50,71,152, - 62,47,211,68,58,203,129,237,57,20,58,204, - 129,237,57,21,33,77,152,54,132,205,233,129, - 58,228,149,254,209,40,6,56,4,62,0,24, - 2,219,96,33,233,149,119,230,62,33,232,149, - 119,213,33,8,152,17,7,0,25,119,19,25, - 119,209,201,251,237,77,245,197,213,229,221,229, - 205,233,129,62,1,50,106,137,205,158,139,221, - 225,225,209,193,241,251,237,77,245,197,213,219, - 72,237,56,16,230,46,237,57,16,237,56,12, - 58,72,152,183,32,26,6,20,17,128,2,237, - 56,46,187,32,35,237,56,47,186,32,29,219, - 72,230,1,32,3,5,32,232,175,50,72,152, - 229,221,229,62,1,50,106,137,205,158,139,221, - 225,225,24,25,62,1,50,72,152,58,201,129, - 237,57,12,58,202,129,237,57,13,237,56,16, - 246,17,237,57,16,209,193,241,251,237,77,245, - 197,229,213,221,229,237,56,16,230,17,237,57, - 16,237,56,20,58,34,152,246,16,246,8,211, - 68,62,6,61,32,253,58,34,152,246,8,211, - 68,58,203,129,237,57,20,58,204,129,237,57, - 21,237,56,16,246,34,237,57,16,221,225,209, - 225,193,241,251,237,77,33,2,0,57,126,230, - 3,237,100,1,40,2,246,128,230,130,245,62, - 5,211,64,241,211,64,201,229,213,243,237,56, - 16,230,46,237,57,16,237,56,12,251,70,35, - 35,126,254,175,202,77,133,254,129,202,15,133, - 230,128,194,191,132,43,58,44,152,119,33,76, - 152,119,35,62,132,119,120,254,255,40,4,58, - 49,152,119,219,72,43,43,112,17,3,0,237, - 56,52,230,248,237,57,52,219,72,230,1,194, - 141,131,209,225,237,56,52,246,6,237,57,52, - 62,1,55,251,201,62,3,211,66,62,192,211, - 66,62,48,211,66,0,0,219,66,230,1,40, - 4,219,67,24,240,205,203,135,58,75,152,254, - 255,202,128,132,58,49,152,254,161,250,207,131, - 58,34,152,211,68,62,10,211,66,62,128,211, - 66,62,11,211,66,62,6,211,66,24,0,62, - 14,211,66,62,33,211,66,62,1,211,66,62, - 64,211,66,62,3,211,66,62,209,211,66,62, - 100,71,219,66,230,1,32,6,5,32,247,195, - 248,132,219,67,71,58,44,152,184,194,248,132, - 62,100,71,219,66,230,1,32,6,5,32,247, - 195,248,132,219,67,62,100,71,219,66,230,1, - 32,6,5,32,247,195,248,132,219,67,254,133, - 32,7,62,0,50,74,152,24,17,254,173,32, - 7,62,1,50,74,152,24,6,254,141,194,248, - 132,71,209,225,58,49,152,254,132,32,10,62, - 50,205,2,134,205,144,135,24,27,254,140,32, - 15,62,110,205,2,134,62,141,184,32,5,205, - 144,135,24,8,62,10,205,2,134,205,8,134, - 62,1,50,106,137,205,158,139,237,56,52,246, - 6,237,57,52,175,183,251,201,62,20,135,237, - 57,20,175,237,57,21,237,56,16,246,2,237, - 57,16,237,56,20,95,237,56,21,123,254,10, - 48,244,237,56,16,230,17,237,57,16,209,225, - 205,144,135,62,1,50,106,137,205,158,139,237, - 56,52,246,6,237,57,52,175,183,251,201,209, - 225,243,219,72,230,1,40,13,62,10,211,66, - 0,0,219,66,230,192,202,226,132,237,56,52, - 246,6,237,57,52,62,1,55,251,201,205,203, - 135,62,1,50,106,137,205,158,139,237,56,52, - 246,6,237,57,52,183,251,201,209,225,62,1, - 50,106,137,205,158,139,237,56,52,246,6,237, - 57,52,62,2,55,251,201,209,225,243,219,72, - 230,1,202,213,132,62,10,211,66,0,0,219, - 66,230,192,194,213,132,229,62,1,50,106,137, - 42,40,152,205,65,143,225,17,3,0,205,111, - 136,62,6,211,66,58,44,152,211,66,237,56, - 52,246,6,237,57,52,183,251,201,209,197,237, - 56,52,230,248,237,57,52,219,72,230,1,32, - 15,193,225,237,56,52,246,6,237,57,52,62, - 1,55,251,201,14,23,58,37,152,254,0,40, - 14,14,2,254,1,32,5,62,140,119,24,3, - 62,132,119,43,43,197,205,203,135,193,62,1, - 211,66,62,64,211,66,62,3,211,66,62,193, - 211,66,62,100,203,39,71,219,66,230,1,32, - 6,5,32,247,195,229,133,33,238,151,219,67, - 71,58,44,152,184,194,229,133,119,62,100,71, - 219,66,230,1,32,6,5,32,247,195,229,133, - 219,67,35,119,13,32,234,193,225,62,1,50, - 106,137,205,158,139,237,56,52,246,6,237,57, - 52,175,183,251,201,33,234,151,35,35,62,255, - 119,193,225,62,1,50,106,137,205,158,139,237, - 56,52,246,6,237,57,52,175,251,201,243,61, - 32,253,251,201,62,3,211,66,62,192,211,66, - 58,49,152,254,140,32,19,197,229,213,17,181, - 129,33,185,129,1,2,0,237,176,209,225,193, - 24,27,229,213,33,187,129,58,49,152,230,15, - 87,30,2,237,92,25,17,181,129,126,18,19, - 35,126,18,209,225,58,34,152,246,8,211,68, - 58,49,152,254,165,40,14,254,164,40,10,62, - 10,211,66,62,224,211,66,24,25,58,74,152, - 254,0,40,10,62,10,211,66,62,160,211,66, - 24,8,62,10,211,66,62,128,211,66,62,11, - 211,66,62,6,211,66,205,147,143,62,5,211, - 66,62,224,211,66,62,5,211,66,62,96,211, - 66,62,5,61,32,253,62,5,211,66,62,224, - 211,66,62,14,61,32,253,62,5,211,66,62, - 233,211,66,62,128,211,66,58,181,129,61,32, - 253,62,1,211,66,62,192,211,66,1,254,19, - 237,56,46,187,32,6,13,32,247,195,226,134, - 62,192,211,66,0,0,219,66,203,119,40,250, - 219,66,203,87,40,250,243,237,56,16,230,17, - 237,57,16,237,56,20,251,62,5,211,66,62, - 224,211,66,58,182,129,61,32,253,229,33,181, - 129,58,183,129,203,63,119,35,58,184,129,119, - 225,62,10,211,66,62,224,211,66,62,11,211, - 66,62,118,211,66,62,47,211,68,62,5,211, - 66,62,233,211,66,58,181,129,61,32,253,62, - 5,211,66,62,224,211,66,58,182,129,61,32, - 253,62,5,211,66,62,96,211,66,201,229,213, - 58,50,152,230,15,87,30,2,237,92,33,187, - 129,25,17,181,129,126,18,35,19,126,18,209, - 225,58,71,152,246,8,211,68,58,50,152,254, - 165,40,14,254,164,40,10,62,10,211,66,62, - 224,211,66,24,8,62,10,211,66,62,128,211, - 66,62,11,211,66,62,6,211,66,195,248,135, - 62,3,211,66,62,192,211,66,197,229,213,17, - 181,129,33,183,129,1,2,0,237,176,209,225, - 193,62,47,211,68,62,10,211,66,62,224,211, - 66,62,11,211,66,62,118,211,66,62,1,211, - 66,62,0,211,66,205,147,143,195,16,136,62, - 3,211,66,62,192,211,66,197,229,213,17,181, - 129,33,183,129,1,2,0,237,176,209,225,193, - 62,47,211,68,62,10,211,66,62,224,211,66, - 62,11,211,66,62,118,211,66,205,147,143,62, - 5,211,66,62,224,211,66,62,5,211,66,62, - 96,211,66,62,5,61,32,253,62,5,211,66, - 62,224,211,66,62,14,61,32,253,62,5,211, - 66,62,233,211,66,62,128,211,66,58,181,129, - 61,32,253,62,1,211,66,62,192,211,66,1, - 254,19,237,56,46,187,32,6,13,32,247,195, - 88,136,62,192,211,66,0,0,219,66,203,119, - 40,250,219,66,203,87,40,250,62,5,211,66, - 62,224,211,66,58,182,129,61,32,253,62,5, - 211,66,62,96,211,66,201,197,14,67,6,0, - 62,3,211,66,62,192,211,66,62,48,211,66, - 0,0,219,66,230,1,40,4,219,67,24,240, - 62,5,211,66,62,233,211,66,62,128,211,66, - 58,181,129,61,32,253,237,163,29,62,192,211, - 66,219,66,230,4,40,250,237,163,29,32,245, - 219,66,230,4,40,250,62,255,71,219,66,230, - 4,40,3,5,32,247,219,66,230,4,40,250, - 62,5,211,66,62,224,211,66,58,182,129,61, - 32,253,62,5,211,66,62,96,211,66,58,71, - 152,254,1,202,18,137,62,16,211,66,62,56, - 211,66,62,14,211,66,62,33,211,66,62,1, - 211,66,62,248,211,66,237,56,48,246,153,230, - 207,237,57,48,62,3,211,66,62,221,211,66, - 193,201,58,71,152,211,68,62,10,211,66,62, - 128,211,66,62,11,211,66,62,6,211,66,62, - 6,211,66,58,44,152,211,66,62,16,211,66, - 62,56,211,66,62,48,211,66,0,0,62,14, - 211,66,62,33,211,66,62,1,211,66,62,248, - 211,66,237,56,48,246,145,246,8,230,207,237, - 57,48,62,3,211,66,62,221,211,66,193,201, - 44,3,1,0,70,69,1,245,197,213,229,175, - 50,72,152,237,56,16,230,46,237,57,16,237, - 56,12,62,1,211,66,0,0,219,66,95,230, - 160,32,3,195,20,139,123,230,96,194,72,139, - 62,48,211,66,62,1,211,66,62,64,211,66, - 237,91,40,152,205,207,143,25,43,55,237,82, - 218,70,139,34,42,152,98,107,58,44,152,190, - 194,210,138,35,35,62,130,190,194,200,137,62, - 1,50,48,152,62,175,190,202,82,139,62,132, - 190,32,44,50,50,152,62,47,50,71,152,229, - 175,50,106,137,42,40,152,205,65,143,225,54, - 133,43,70,58,44,152,119,43,112,17,3,0, - 62,10,205,2,134,205,111,136,195,158,138,62, - 140,190,32,19,50,50,152,58,233,149,230,4, - 202,222,138,62,1,50,71,152,195,219,137,126, - 254,160,250,185,138,254,166,242,185,138,50,50, - 152,43,126,35,229,213,33,234,149,95,22,0, - 25,126,254,132,40,18,254,140,40,14,58,50, - 152,230,15,87,126,31,21,242,65,138,56,2, - 175,119,58,50,152,230,15,87,58,233,149,230, - 62,31,21,242,85,138,218,98,138,209,225,195, - 20,139,58,50,152,33,100,137,230,15,95,22, - 0,25,126,50,71,152,209,225,58,50,152,254, - 164,250,135,138,58,73,152,254,0,40,4,54, - 173,24,2,54,133,43,70,58,44,152,119,43, - 112,17,3,0,205,70,135,175,50,106,137,205, - 208,139,58,199,129,237,57,12,58,200,129,237, - 57,13,237,56,16,246,17,237,57,16,225,209, - 193,241,251,237,77,62,129,190,194,227,138,54, - 130,43,70,58,44,152,119,43,112,17,3,0, - 205,144,135,195,20,139,35,35,126,254,132,194, - 227,138,175,50,106,137,205,158,139,24,42,58, - 201,154,254,1,40,7,62,1,50,106,137,24, - 237,58,106,137,254,1,202,222,138,62,128,166, - 194,222,138,221,229,221,33,67,152,205,127,142, - 205,109,144,221,225,225,209,193,241,251,237,77, - 58,106,137,254,1,202,44,139,58,50,152,254, - 164,250,44,139,58,73,152,238,1,50,73,152, - 221,229,221,33,51,152,205,127,142,221,225,62, - 1,50,106,137,205,158,139,195,13,139,24,208, - 24,206,24,204,230,64,40,3,195,20,139,195, - 20,139,43,126,33,8,152,119,35,58,44,152, - 119,43,237,91,35,152,205,203,135,205,158,139, - 195,13,139,175,50,78,152,62,3,211,66,62, - 192,211,66,201,197,33,4,0,57,126,35,102, - 111,62,1,50,106,137,219,72,205,141,139,193, - 201,62,1,50,78,152,34,40,152,54,0,35, - 35,54,0,195,163,139,58,78,152,183,200,229, - 33,181,129,58,183,129,119,35,58,184,129,119, - 225,62,47,211,68,62,14,211,66,62,193,211, - 66,62,10,211,66,62,224,211,66,62,11,211, - 66,62,118,211,66,195,3,140,58,78,152,183, - 200,58,71,152,211,68,254,69,40,4,254,70, - 32,17,58,73,152,254,0,40,10,62,10,211, - 66,62,160,211,66,24,8,62,10,211,66,62, - 128,211,66,62,11,211,66,62,6,211,66,62, - 6,211,66,58,44,152,211,66,62,16,211,66, - 62,56,211,66,62,48,211,66,0,0,219,66, - 230,1,40,4,219,67,24,240,62,14,211,66, - 62,33,211,66,42,40,152,205,65,143,62,1, - 211,66,62,248,211,66,237,56,48,246,145,246, - 8,230,207,237,57,48,62,3,211,66,62,221, - 211,66,201,62,16,211,66,62,56,211,66,62, - 48,211,66,0,0,219,66,230,1,40,4,219, - 67,24,240,62,14,211,66,62,33,211,66,62, - 1,211,66,62,248,211,66,237,56,48,246,153, - 230,207,237,57,48,62,3,211,66,62,221,211, - 66,201,229,213,33,234,149,95,22,0,25,126, - 254,132,40,4,254,140,32,2,175,119,123,209, - 225,201,6,8,14,0,31,48,1,12,16,250, - 121,201,33,4,0,57,94,35,86,33,2,0, - 57,126,35,102,111,221,229,34,89,152,237,83, - 91,152,221,33,63,152,205,127,142,58,81,152, - 50,82,152,58,80,152,135,50,80,152,205,162, - 140,254,3,56,16,58,81,152,135,60,230,15, - 50,81,152,175,50,80,152,24,23,58,79,152, - 205,162,140,254,3,48,13,58,81,152,203,63, - 50,81,152,62,255,50,79,152,58,81,152,50, - 82,152,58,79,152,135,50,79,152,62,32,50, - 83,152,50,84,152,237,56,16,230,17,237,57, - 16,219,72,62,192,50,93,152,62,93,50,94, - 152,58,93,152,61,50,93,152,32,9,58,94, - 152,61,50,94,152,40,44,62,170,237,57,20, - 175,237,57,21,237,56,16,246,2,237,57,16, - 219,72,230,1,202,29,141,237,56,20,71,237, - 56,21,120,254,10,48,237,237,56,16,230,17, - 237,57,16,243,62,14,211,66,62,65,211,66, - 251,58,39,152,23,23,60,50,39,152,71,58, - 82,152,160,230,15,40,22,71,14,10,219,66, - 230,16,202,186,141,219,72,230,1,202,186,141, - 13,32,239,16,235,42,89,152,237,91,91,152, - 205,47,131,48,7,61,202,186,141,195,227,141, - 221,225,33,0,0,201,221,33,55,152,205,127, - 142,58,84,152,61,50,84,152,40,19,58,82, - 152,246,1,50,82,152,58,79,152,246,1,50, - 79,152,195,29,141,221,225,33,1,0,201,221, - 33,59,152,205,127,142,58,80,152,246,1,50, - 80,152,58,82,152,135,246,1,50,82,152,58, - 83,152,61,50,83,152,194,29,141,221,225,33, - 2,0,201,221,229,33,0,0,57,17,4,0, - 25,126,50,44,152,230,128,50,85,152,58,85, - 152,183,40,6,221,33,88,2,24,4,221,33, - 150,0,58,44,152,183,40,53,60,40,50,60, - 40,47,61,61,33,86,152,119,35,119,35,54, - 129,175,50,48,152,221,43,221,229,225,124,181, - 40,42,33,86,152,17,3,0,205,189,140,17, - 232,3,27,123,178,32,251,58,48,152,183,40, - 224,58,44,152,71,62,7,128,230,127,71,58, - 85,152,176,50,44,152,24,162,221,225,201,183, - 221,52,0,192,221,52,1,192,221,52,2,192, - 221,52,3,192,55,201,245,62,1,211,100,241, - 201,245,62,1,211,96,241,201,33,2,0,57, - 126,35,102,111,237,56,48,230,175,237,57,48, - 62,48,237,57,49,125,237,57,32,124,237,57, - 33,62,0,237,57,34,62,88,237,57,35,62, - 0,237,57,36,237,57,37,33,128,2,125,237, - 57,38,124,237,57,39,237,56,48,246,97,230, - 207,237,57,48,62,0,237,57,0,62,0,211, - 96,211,100,201,33,2,0,57,126,35,102,111, - 237,56,48,230,175,237,57,48,62,12,237,57, - 49,62,76,237,57,32,62,0,237,57,33,237, - 57,34,125,237,57,35,124,237,57,36,62,0, - 237,57,37,33,128,2,125,237,57,38,124,237, - 57,39,237,56,48,246,97,230,207,237,57,48, - 62,1,211,96,201,33,2,0,57,126,35,102, - 111,229,237,56,48,230,87,237,57,48,125,237, - 57,40,124,237,57,41,62,0,237,57,42,62, - 67,237,57,43,62,0,237,57,44,58,106,137, - 254,1,32,5,33,6,0,24,3,33,128,2, - 125,237,57,46,124,237,57,47,237,56,50,230, - 252,246,2,237,57,50,225,201,33,4,0,57, - 94,35,86,33,2,0,57,126,35,102,111,237, - 56,48,230,87,237,57,48,125,237,57,40,124, - 237,57,41,62,0,237,57,42,62,67,237,57, - 43,62,0,237,57,44,123,237,57,46,122,237, - 57,47,237,56,50,230,244,246,0,237,57,50, - 237,56,48,246,145,230,207,237,57,48,201,213, - 237,56,46,95,237,56,47,87,237,56,46,111, - 237,56,47,103,183,237,82,32,235,33,128,2, - 183,237,82,209,201,213,237,56,38,95,237,56, - 39,87,237,56,38,111,237,56,39,103,183,237, - 82,32,235,33,128,2,183,237,82,209,201,245, - 197,1,52,0,237,120,230,253,237,121,193,241, - 201,245,197,1,52,0,237,120,246,2,237,121, - 193,241,201,33,2,0,57,126,35,102,111,126, - 35,110,103,201,33,0,0,34,102,152,34,96, - 152,34,98,152,33,202,154,34,104,152,237,91, - 104,152,42,226,149,183,237,82,17,0,255,25, - 34,100,152,203,124,40,6,33,0,125,34,100, - 152,42,104,152,35,35,35,229,205,120,139,193, - 201,205,186,149,229,42,40,152,35,35,35,229, - 205,39,144,193,124,230,3,103,221,117,254,221, - 116,255,237,91,42,152,35,35,35,183,237,82, - 32,12,17,5,0,42,42,152,205,171,149,242, - 169,144,42,40,152,229,205,120,139,193,195,198, - 149,237,91,42,152,42,98,152,25,34,98,152, - 19,19,19,42,102,152,25,34,102,152,237,91, - 100,152,33,158,253,25,237,91,102,152,205,171, - 149,242,214,144,33,0,0,34,102,152,62,1, - 50,95,152,205,225,144,195,198,149,58,95,152, - 183,200,237,91,96,152,42,102,152,205,171,149, - 242,5,145,237,91,102,152,33,98,2,25,237, - 91,96,152,205,171,149,250,37,145,237,91,96, - 152,42,102,152,183,237,82,32,7,42,98,152, - 125,180,40,13,237,91,102,152,42,96,152,205, - 171,149,242,58,145,237,91,104,152,42,102,152, - 25,35,35,35,229,205,120,139,193,175,50,95, - 152,201,195,107,139,205,206,149,250,255,243,205, - 225,144,251,58,230,149,183,194,198,149,17,1, - 0,42,98,152,205,171,149,250,198,149,62,1, - 50,230,149,237,91,96,152,42,104,152,25,221, - 117,252,221,116,253,237,91,104,152,42,96,152, - 25,35,35,35,221,117,254,221,116,255,35,35, - 35,229,205,39,144,124,230,3,103,35,35,35, - 221,117,250,221,116,251,235,221,110,252,221,102, - 253,115,35,114,35,54,4,62,1,211,100,211, - 84,195,198,149,33,0,0,34,102,152,34,96, - 152,34,98,152,33,202,154,34,104,152,237,91, - 104,152,42,226,149,183,237,82,17,0,255,25, - 34,100,152,33,109,152,54,0,33,107,152,229, - 205,240,142,193,62,47,50,34,152,62,132,50, - 49,152,205,241,145,205,61,145,58,39,152,60, - 50,39,152,24,241,205,206,149,251,255,33,109, - 152,126,183,202,198,149,110,221,117,251,33,109, - 152,54,0,221,126,251,254,1,40,28,254,3, - 40,101,254,4,202,190,147,254,5,202,147,147, - 254,8,40,87,33,107,152,229,205,240,142,195, - 198,149,58,201,154,183,32,21,33,111,152,126, - 50,229,149,205,52,144,33,110,152,110,38,0, - 229,205,11,142,193,237,91,96,152,42,104,152, - 25,221,117,254,221,116,255,35,35,54,2,17, - 2,0,43,43,115,35,114,58,44,152,35,35, - 119,58,228,149,35,119,62,1,211,100,211,84, - 62,1,50,201,154,24,169,205,153,142,58,231, - 149,183,40,250,175,50,231,149,33,110,152,126, - 254,255,40,91,58,233,149,230,63,183,40,83, - 94,22,0,33,234,149,25,126,183,40,13,33, - 110,152,94,33,234,150,25,126,254,3,32,36, - 205,81,148,125,180,33,110,152,94,22,0,40, - 17,33,234,149,25,54,0,33,107,152,229,205, - 240,142,193,195,198,149,33,234,150,25,54,0, - 33,110,152,94,22,0,33,234,149,25,126,50, - 49,152,254,132,32,37,62,47,50,34,152,42, - 107,152,229,33,110,152,229,205,174,140,193,193, - 125,180,33,110,152,94,22,0,33,234,150,202, - 117,147,25,52,195,120,147,58,49,152,254,140, - 32,7,62,1,50,34,152,24,210,62,32,50, - 106,152,24,19,58,49,152,95,58,106,152,163, - 183,58,106,152,32,11,203,63,50,106,152,58, - 106,152,183,32,231,254,2,40,51,254,4,40, - 38,254,8,40,26,254,16,40,13,254,32,32, - 158,62,165,50,49,152,62,69,24,190,62,164, - 50,49,152,62,70,24,181,62,163,50,49,152, - 175,24,173,62,162,50,49,152,62,1,24,164, - 62,161,50,49,152,62,3,24,155,25,54,0, - 221,126,251,254,8,40,7,58,230,149,183,202, - 32,146,33,107,152,229,205,240,142,193,211,84, - 195,198,149,237,91,96,152,42,104,152,25,221, - 117,254,221,116,255,35,35,54,6,17,2,0, - 43,43,115,35,114,58,228,149,35,35,119,58, - 233,149,35,119,205,146,142,195,32,146,237,91, - 96,152,42,104,152,25,229,205,160,142,193,58, - 231,149,183,40,250,175,50,231,149,243,237,91, - 96,152,42,104,152,25,221,117,254,221,116,255, - 78,35,70,221,113,252,221,112,253,89,80,42, - 98,152,183,237,82,34,98,152,203,124,40,19, - 33,0,0,34,98,152,34,102,152,34,96,152, - 62,1,50,95,152,24,40,221,94,252,221,86, - 253,19,19,19,42,96,152,25,34,96,152,237, - 91,100,152,33,158,253,25,237,91,96,152,205, - 171,149,242,55,148,33,0,0,34,96,152,175, - 50,230,149,251,195,32,146,245,62,1,50,231, - 149,62,16,237,57,0,211,80,241,251,237,77, - 201,205,186,149,229,229,33,0,0,34,37,152, - 33,110,152,126,50,234,151,58,44,152,33,235, - 151,119,221,54,253,0,221,54,254,0,195,230, - 148,33,236,151,54,175,33,3,0,229,33,234, - 151,229,205,174,140,193,193,33,236,151,126,254, - 255,40,74,33,245,151,110,221,117,255,33,249, - 151,126,221,166,255,221,119,255,33,253,151,126, - 221,166,255,221,119,255,58,232,149,95,221,126, - 255,163,221,119,255,183,40,15,230,191,33,110, - 152,94,22,0,33,234,149,25,119,24,12,33, - 110,152,94,22,0,33,234,149,25,54,132,33, - 0,0,195,198,149,221,110,253,221,102,254,35, - 221,117,253,221,116,254,17,32,0,221,110,253, - 221,102,254,205,171,149,250,117,148,58,233,149, - 203,87,40,84,33,1,0,34,37,152,221,54, - 253,0,221,54,254,0,24,53,33,236,151,54, - 175,33,3,0,229,33,234,151,229,205,174,140, - 193,193,33,236,151,126,254,255,40,14,33,110, - 152,94,22,0,33,234,149,25,54,140,24,159, - 221,110,253,221,102,254,35,221,117,253,221,116, - 254,17,32,0,221,110,253,221,102,254,205,171, - 149,250,12,149,33,2,0,34,37,152,221,54, - 253,0,221,54,254,0,24,54,33,236,151,54, - 175,33,3,0,229,33,234,151,229,205,174,140, - 193,193,33,236,151,126,254,255,40,15,33,110, - 152,94,22,0,33,234,149,25,54,132,195,211, - 148,221,110,253,221,102,254,35,221,117,253,221, - 116,254,17,32,0,221,110,253,221,102,254,205, - 171,149,250,96,149,33,1,0,195,198,149,124, - 170,250,179,149,237,82,201,124,230,128,237,82, - 60,201,225,253,229,221,229,221,33,0,0,221, - 57,233,221,249,221,225,253,225,201,233,225,253, - 229,221,229,221,33,0,0,221,57,94,35,86, - 35,235,57,249,235,233,0,0,0,0,0,0, - 62,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 175,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,133,1,0,0,0,63, - 255,255,255,255,0,0,0,63,0,0,0,0, - 0,0,0,0,0,0,0,24,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0 - } ; - -#endif diff --git a/drivers/net/appletalk/cops_ltdrv.h b/drivers/net/appletalk/cops_ltdrv.h deleted file mode 100644 index c699b1ad31da..000000000000 --- a/drivers/net/appletalk/cops_ltdrv.h +++ /dev/null @@ -1,241 +0,0 @@ -/* - * The firmware this driver downloads into the Localtalk card is a - * separate program and is not GPL'd source code, even though the Linux - * side driver and the routine that loads this data into the card are. - * - * It is taken from the COPS SDK and is under the following license - * - * This material is licensed to you strictly for use in conjunction with - * the use of COPS LocalTalk adapters. - * There is no charge for this SDK. And no waranty express or implied - * about its fitness for any purpose. However, we will cheerefully - * refund every penny you paid for this SDK... - * Regards, - * - * Thomas F. Divine - * Chief Scientist - */ - - -/* cops_ltdrv.h: LocalTalk driver firmware dump for Linux. - * - * Authors: - * - Jay Schulist - */ - - -#ifdef CONFIG_COPS_TANGENT - -static const unsigned char ltdrv_code[] = { - 58,3,0,50,148,10,33,143,15,62,85,119, - 190,32,9,62,170,119,190,32,3,35,24,241, - 34,146,10,249,17,150,10,33,143,15,183,237, - 82,77,68,11,107,98,19,54,0,237,176,62, - 16,237,57,51,62,0,237,57,50,237,57,54, - 62,12,237,57,49,62,195,33,39,2,50,56, - 0,34,57,0,237,86,205,30,2,251,205,60, - 10,24,169,67,111,112,121,114,105,103,104,116, - 32,40,99,41,32,49,57,56,56,45,49,57, - 57,50,44,32,80,114,105,110,116,105,110,103, - 32,67,111,109,109,117,110,105,99,97,116,105, - 111,110,115,32,65,115,115,111,99,105,97,116, - 101,115,44,32,73,110,99,46,65,108,108,32, - 114,105,103,104,116,115,32,114,101,115,101,114, - 118,101,100,46,32,32,4,4,22,40,255,60, - 4,96,10,224,6,0,7,126,2,64,11,246, - 12,6,13,0,14,193,15,0,5,96,3,192, - 1,0,9,8,62,3,211,82,62,192,211,82, - 201,62,3,211,82,62,213,211,82,201,62,5, - 211,82,62,224,211,82,201,62,5,211,82,62, - 224,211,82,201,62,5,211,82,62,96,211,82, - 201,6,28,33,180,1,14,82,237,163,194,4, - 2,33,39,2,34,64,0,58,3,0,230,1, - 192,62,11,237,121,62,118,237,121,201,33,182, - 10,54,132,205,253,1,201,245,197,213,229,42, - 150,10,14,83,17,98,2,67,20,237,162,58, - 179,1,95,219,82,230,1,32,6,29,32,247, - 195,17,3,62,1,211,82,219,82,95,230,160, - 32,10,237,162,32,225,21,32,222,195,15,3, - 237,162,123,230,96,194,21,3,62,48,211,82, - 62,1,211,82,175,211,82,237,91,150,10,43, - 55,237,82,218,19,3,34,152,10,98,107,58, - 154,10,190,32,81,62,1,50,158,10,35,35, - 62,132,190,32,44,54,133,43,70,58,154,10, - 119,43,112,17,3,0,205,137,3,62,16,211, - 82,62,56,211,82,205,217,1,42,150,10,14, - 83,17,98,2,67,20,58,178,1,95,195,59, - 2,62,129,190,194,227,2,54,130,43,70,58, - 154,10,119,43,112,17,3,0,205,137,3,195, - 254,2,35,35,126,254,132,194,227,2,205,61, - 3,24,20,62,128,166,194,222,2,221,229,221, - 33,175,10,205,93,6,205,144,7,221,225,225, - 209,193,241,251,237,77,221,229,221,33,159,10, - 205,93,6,221,225,205,61,3,195,247,2,24, - 237,24,235,24,233,230,64,40,2,24,227,24, - 225,175,50,179,10,205,208,1,201,197,33,4, - 0,57,126,35,102,111,205,51,3,193,201,62, - 1,50,179,10,34,150,10,54,0,58,179,10, - 183,200,62,14,211,82,62,193,211,82,62,10, - 211,82,62,224,211,82,62,6,211,82,58,154, - 10,211,82,62,16,211,82,62,56,211,82,62, - 48,211,82,219,82,230,1,40,4,219,83,24, - 242,62,14,211,82,62,33,211,82,62,1,211, - 82,62,9,211,82,62,32,211,82,205,217,1, - 201,14,83,205,208,1,24,23,14,83,205,208, - 1,205,226,1,58,174,1,61,32,253,205,244, - 1,58,174,1,61,32,253,205,226,1,58,175, - 1,61,32,253,62,5,211,82,62,233,211,82, - 62,128,211,82,58,176,1,61,32,253,237,163, - 27,62,192,211,82,219,82,230,4,40,250,237, - 163,27,122,179,32,243,219,82,230,4,40,250, - 58,178,1,71,219,82,230,4,40,3,5,32, - 247,219,82,230,4,40,250,205,235,1,58,177, - 1,61,32,253,205,244,1,201,229,213,35,35, - 126,230,128,194,145,4,43,58,154,10,119,43, - 70,33,181,10,119,43,112,17,3,0,243,62, - 10,211,82,219,82,230,128,202,41,4,209,225, - 62,1,55,251,201,205,144,3,58,180,10,254, - 255,202,127,4,205,217,1,58,178,1,71,219, - 82,230,1,32,6,5,32,247,195,173,4,219, - 83,71,58,154,10,184,194,173,4,58,178,1, - 71,219,82,230,1,32,6,5,32,247,195,173, - 4,219,83,58,178,1,71,219,82,230,1,32, - 6,5,32,247,195,173,4,219,83,254,133,194, - 173,4,58,179,1,24,4,58,179,1,135,61, - 32,253,209,225,205,137,3,205,61,3,183,251, - 201,209,225,243,62,10,211,82,219,82,230,128, - 202,164,4,62,1,55,251,201,205,144,3,205, - 61,3,183,251,201,209,225,62,2,55,251,201, - 243,62,14,211,82,62,33,211,82,251,201,33, - 4,0,57,94,35,86,33,2,0,57,126,35, - 102,111,221,229,34,193,10,237,83,195,10,221, - 33,171,10,205,93,6,58,185,10,50,186,10, - 58,184,10,135,50,184,10,205,112,6,254,3, - 56,16,58,185,10,135,60,230,15,50,185,10, - 175,50,184,10,24,23,58,183,10,205,112,6, - 254,3,48,13,58,185,10,203,63,50,185,10, - 62,255,50,183,10,58,185,10,50,186,10,58, - 183,10,135,50,183,10,62,32,50,187,10,50, - 188,10,6,255,219,82,230,16,32,3,5,32, - 247,205,180,4,6,40,219,82,230,16,40,3, - 5,32,247,62,10,211,82,219,82,230,128,194, - 46,5,219,82,230,16,40,214,237,95,71,58, - 186,10,160,230,15,40,32,71,14,10,62,10, - 211,82,219,82,230,128,202,119,5,205,180,4, - 195,156,5,219,82,230,16,202,156,5,13,32, - 229,16,225,42,193,10,237,91,195,10,205,252, - 3,48,7,61,202,156,5,195,197,5,221,225, - 33,0,0,201,221,33,163,10,205,93,6,58, - 188,10,61,50,188,10,40,19,58,186,10,246, - 1,50,186,10,58,183,10,246,1,50,183,10, - 195,46,5,221,225,33,1,0,201,221,33,167, - 10,205,93,6,58,184,10,246,1,50,184,10, - 58,186,10,135,246,1,50,186,10,58,187,10, - 61,50,187,10,194,46,5,221,225,33,2,0, - 201,221,229,33,0,0,57,17,4,0,25,126, - 50,154,10,230,128,50,189,10,58,189,10,183, - 40,6,221,33,88,2,24,4,221,33,150,0, - 58,154,10,183,40,49,60,40,46,61,33,190, - 10,119,35,119,35,54,129,175,50,158,10,221, - 43,221,229,225,124,181,40,42,33,190,10,17, - 3,0,205,206,4,17,232,3,27,123,178,32, - 251,58,158,10,183,40,224,58,154,10,71,62, - 7,128,230,127,71,58,189,10,176,50,154,10, - 24,166,221,225,201,183,221,52,0,192,221,52, - 1,192,221,52,2,192,221,52,3,192,55,201, - 6,8,14,0,31,48,1,12,16,250,121,201, - 33,2,0,57,94,35,86,35,78,35,70,35, - 126,35,102,105,79,120,68,103,237,176,201,33, - 2,0,57,126,35,102,111,62,17,237,57,48, - 125,237,57,40,124,237,57,41,62,0,237,57, - 42,62,64,237,57,43,62,0,237,57,44,33, - 128,2,125,237,57,46,124,237,57,47,62,145, - 237,57,48,211,68,58,149,10,211,66,201,33, - 2,0,57,126,35,102,111,62,33,237,57,48, - 62,64,237,57,32,62,0,237,57,33,237,57, - 34,125,237,57,35,124,237,57,36,62,0,237, - 57,37,33,128,2,125,237,57,38,124,237,57, - 39,62,97,237,57,48,211,67,58,149,10,211, - 66,201,237,56,46,95,237,56,47,87,237,56, - 46,111,237,56,47,103,183,237,82,32,235,33, - 128,2,183,237,82,201,237,56,38,95,237,56, - 39,87,237,56,38,111,237,56,39,103,183,237, - 82,32,235,33,128,2,183,237,82,201,205,106, - 10,221,110,6,221,102,7,126,35,110,103,195, - 118,10,205,106,10,33,0,0,34,205,10,34, - 198,10,34,200,10,33,143,15,34,207,10,237, - 91,207,10,42,146,10,183,237,82,17,0,255, - 25,34,203,10,203,124,40,6,33,0,125,34, - 203,10,42,207,10,229,205,37,3,195,118,10, - 205,106,10,229,42,150,10,35,35,35,229,205, - 70,7,193,124,230,3,103,221,117,254,221,116, - 255,237,91,152,10,35,35,35,183,237,82,32, - 12,17,5,0,42,152,10,205,91,10,242,203, - 7,42,150,10,229,205,37,3,195,118,10,237, - 91,152,10,42,200,10,25,34,200,10,42,205, - 10,25,34,205,10,237,91,203,10,33,158,253, - 25,237,91,205,10,205,91,10,242,245,7,33, - 0,0,34,205,10,62,1,50,197,10,205,5, - 8,33,0,0,57,249,195,118,10,205,106,10, - 58,197,10,183,202,118,10,237,91,198,10,42, - 205,10,205,91,10,242,46,8,237,91,205,10, - 33,98,2,25,237,91,198,10,205,91,10,250, - 78,8,237,91,198,10,42,205,10,183,237,82, - 32,7,42,200,10,125,180,40,13,237,91,205, - 10,42,198,10,205,91,10,242,97,8,237,91, - 207,10,42,205,10,25,229,205,37,3,175,50, - 197,10,195,118,10,205,29,3,33,0,0,57, - 249,195,118,10,205,106,10,58,202,10,183,40, - 22,205,14,7,237,91,209,10,19,19,19,205, - 91,10,242,139,8,33,1,0,195,118,10,33, - 0,0,195,118,10,205,126,10,252,255,205,108, - 8,125,180,194,118,10,237,91,200,10,33,0, - 0,205,91,10,242,118,10,237,91,207,10,42, - 198,10,25,221,117,254,221,116,255,35,35,35, - 229,205,70,7,193,124,230,3,103,35,35,35, - 221,117,252,221,116,253,229,221,110,254,221,102, - 255,229,33,212,10,229,205,124,6,193,193,221, - 110,252,221,102,253,34,209,10,33,211,10,54, - 4,33,209,10,227,205,147,6,193,62,1,50, - 202,10,243,221,94,252,221,86,253,42,200,10, - 183,237,82,34,200,10,203,124,40,17,33,0, - 0,34,200,10,34,205,10,34,198,10,50,197, - 10,24,37,221,94,252,221,86,253,42,198,10, - 25,34,198,10,237,91,203,10,33,158,253,25, - 237,91,198,10,205,91,10,242,68,9,33,0, - 0,34,198,10,205,5,8,33,0,0,57,249, - 251,195,118,10,205,106,10,33,49,13,126,183, - 40,16,205,42,7,237,91,47,13,19,19,19, - 205,91,10,242,117,9,58,142,15,198,1,50, - 142,15,195,118,10,33,49,13,126,254,1,40, - 25,254,3,202,7,10,254,5,202,21,10,33, - 49,13,54,0,33,47,13,229,205,207,6,195, - 118,10,58,141,15,183,32,72,33,51,13,126, - 50,149,10,205,86,7,33,50,13,126,230,127, - 183,32,40,58,142,15,230,127,50,142,15,183, - 32,5,198,1,50,142,15,33,50,13,126,111, - 23,159,103,203,125,58,142,15,40,5,198,128, - 50,142,15,33,50,13,119,33,50,13,126,111, - 23,159,103,229,205,237,5,193,33,211,10,54, - 2,33,2,0,34,209,10,58,154,10,33,212, - 10,119,58,148,10,33,213,10,119,33,209,10, - 229,205,147,6,193,24,128,42,47,13,229,33, - 50,13,229,205,191,4,193,24,239,33,211,10, - 54,6,33,3,0,34,209,10,58,154,10,33, - 212,10,119,58,148,10,33,213,10,119,33,214, - 10,54,5,33,209,10,229,205,147,6,24,200, - 205,106,10,33,49,13,54,0,33,47,13,229, - 205,207,6,33,209,10,227,205,147,6,193,205, - 80,9,205,145,8,24,248,124,170,250,99,10, - 237,82,201,124,230,128,237,82,60,201,225,253, - 229,221,229,221,33,0,0,221,57,233,221,249, - 221,225,253,225,201,233,225,253,229,221,229,221, - 33,0,0,221,57,94,35,86,35,235,57,249, - 235,233,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0,0,0,0,0,0,0,0, - 0,0,0,0,0 - } ; - -#endif diff --git a/drivers/net/appletalk/ipddp.c b/drivers/net/appletalk/ipddp.c deleted file mode 100644 index 10d0dba572c2..000000000000 --- a/drivers/net/appletalk/ipddp.c +++ /dev/null @@ -1,335 +0,0 @@ -/* - * ipddp.c: IP to Appletalk-IP Encapsulation driver for Linux - * Appletalk-IP to IP Decapsulation driver for Linux - * - * Authors: - * - DDP-IP Encap by: Bradford W. Johnson - * - DDP-IP Decap by: Jay Schulist - * - * Derived from: - * - Almost all code already existed in net/appletalk/ddp.c I just - * moved/reorginized it into a driver file. Original IP-over-DDP code - * was done by Bradford W. Johnson - * - skeleton.c: A network driver outline for linux. - * Written 1993-94 by Donald Becker. - * - dummy.c: A dummy net driver. By Nick Holloway. - * - MacGate: A user space Daemon for Appletalk-IP Decap for - * Linux by Jay Schulist - * - * Copyright 1993 United States Government as represented by the - * Director, National Security Agency. - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "ipddp.h" /* Our stuff */ - -static const char version[] = KERN_INFO "ipddp.c:v0.01 8/28/97 Bradford W. Johnson \n"; - -static struct ipddp_route *ipddp_route_list; -static DEFINE_SPINLOCK(ipddp_route_lock); - -#ifdef CONFIG_IPDDP_ENCAP -static int ipddp_mode = IPDDP_ENCAP; -#else -static int ipddp_mode = IPDDP_DECAP; -#endif - -/* Index to functions, as function prototypes. */ -static netdev_tx_t ipddp_xmit(struct sk_buff *skb, - struct net_device *dev); -static int ipddp_create(struct ipddp_route *new_rt); -static int ipddp_delete(struct ipddp_route *rt); -static struct ipddp_route* __ipddp_find_route(struct ipddp_route *rt); -static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); - -static const struct net_device_ops ipddp_netdev_ops = { - .ndo_start_xmit = ipddp_xmit, - .ndo_do_ioctl = ipddp_ioctl, - .ndo_change_mtu = eth_change_mtu, - .ndo_set_mac_address = eth_mac_addr, - .ndo_validate_addr = eth_validate_addr, -}; - -static struct net_device * __init ipddp_init(void) -{ - static unsigned version_printed; - struct net_device *dev; - int err; - - dev = alloc_etherdev(0); - if (!dev) - return ERR_PTR(-ENOMEM); - - dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; - strcpy(dev->name, "ipddp%d"); - - if (version_printed++ == 0) - printk(version); - - /* Initialize the device structure. */ - dev->netdev_ops = &ipddp_netdev_ops; - - dev->type = ARPHRD_IPDDP; /* IP over DDP tunnel */ - dev->mtu = 585; - dev->flags |= IFF_NOARP; - - /* - * The worst case header we will need is currently a - * ethernet header (14 bytes) and a ddp header (sizeof ddpehdr+1) - * We send over SNAP so that takes another 8 bytes. - */ - dev->hard_header_len = 14+8+sizeof(struct ddpehdr)+1; - - err = register_netdev(dev); - if (err) { - free_netdev(dev); - return ERR_PTR(err); - } - - /* Let the user now what mode we are in */ - if(ipddp_mode == IPDDP_ENCAP) - printk("%s: Appletalk-IP Encap. mode by Bradford W. Johnson \n", - dev->name); - if(ipddp_mode == IPDDP_DECAP) - printk("%s: Appletalk-IP Decap. mode by Jay Schulist \n", - dev->name); - - return dev; -} - - -/* - * Transmit LLAP/ELAP frame using aarp_send_ddp. - */ -static netdev_tx_t ipddp_xmit(struct sk_buff *skb, struct net_device *dev) -{ - __be32 paddr = skb_rtable(skb)->rt_gateway; - struct ddpehdr *ddp; - struct ipddp_route *rt; - struct atalk_addr *our_addr; - - spin_lock(&ipddp_route_lock); - - /* - * Find appropriate route to use, based only on IP number. - */ - for(rt = ipddp_route_list; rt != NULL; rt = rt->next) - { - if(rt->ip == paddr) - break; - } - if(rt == NULL) { - spin_unlock(&ipddp_route_lock); - return NETDEV_TX_OK; - } - - our_addr = atalk_find_dev_addr(rt->dev); - - if(ipddp_mode == IPDDP_DECAP) - /* - * Pull off the excess room that should not be there. - * This is due to a hard-header problem. This is the - * quick fix for now though, till it breaks. - */ - skb_pull(skb, 35-(sizeof(struct ddpehdr)+1)); - - /* Create the Extended DDP header */ - ddp = (struct ddpehdr *)skb->data; - ddp->deh_len_hops = htons(skb->len + (1<<10)); - ddp->deh_sum = 0; - - /* - * For Localtalk we need aarp_send_ddp to strip the - * long DDP header and place a shot DDP header on it. - */ - if(rt->dev->type == ARPHRD_LOCALTLK) - { - ddp->deh_dnet = 0; /* FIXME more hops?? */ - ddp->deh_snet = 0; - } - else - { - ddp->deh_dnet = rt->at.s_net; /* FIXME more hops?? */ - ddp->deh_snet = our_addr->s_net; - } - ddp->deh_dnode = rt->at.s_node; - ddp->deh_snode = our_addr->s_node; - ddp->deh_dport = 72; - ddp->deh_sport = 72; - - *((__u8 *)(ddp+1)) = 22; /* ddp type = IP */ - - skb->protocol = htons(ETH_P_ATALK); /* Protocol has changed */ - - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - - aarp_send_ddp(rt->dev, skb, &rt->at, NULL); - - spin_unlock(&ipddp_route_lock); - - return NETDEV_TX_OK; -} - -/* - * Create a routing entry. We first verify that the - * record does not already exist. If it does we return -EEXIST - */ -static int ipddp_create(struct ipddp_route *new_rt) -{ - struct ipddp_route *rt = kmalloc(sizeof(*rt), GFP_KERNEL); - - if (rt == NULL) - return -ENOMEM; - - rt->ip = new_rt->ip; - rt->at = new_rt->at; - rt->next = NULL; - if ((rt->dev = atrtr_get_dev(&rt->at)) == NULL) { - kfree(rt); - return -ENETUNREACH; - } - - spin_lock_bh(&ipddp_route_lock); - if (__ipddp_find_route(rt)) { - spin_unlock_bh(&ipddp_route_lock); - kfree(rt); - return -EEXIST; - } - - rt->next = ipddp_route_list; - ipddp_route_list = rt; - - spin_unlock_bh(&ipddp_route_lock); - - return 0; -} - -/* - * Delete a route, we only delete a FULL match. - * If route does not exist we return -ENOENT. - */ -static int ipddp_delete(struct ipddp_route *rt) -{ - struct ipddp_route **r = &ipddp_route_list; - struct ipddp_route *tmp; - - spin_lock_bh(&ipddp_route_lock); - while((tmp = *r) != NULL) - { - if(tmp->ip == rt->ip && - tmp->at.s_net == rt->at.s_net && - tmp->at.s_node == rt->at.s_node) - { - *r = tmp->next; - spin_unlock_bh(&ipddp_route_lock); - kfree(tmp); - return 0; - } - r = &tmp->next; - } - - spin_unlock_bh(&ipddp_route_lock); - return -ENOENT; -} - -/* - * Find a routing entry, we only return a FULL match - */ -static struct ipddp_route* __ipddp_find_route(struct ipddp_route *rt) -{ - struct ipddp_route *f; - - for(f = ipddp_route_list; f != NULL; f = f->next) - { - if(f->ip == rt->ip && - f->at.s_net == rt->at.s_net && - f->at.s_node == rt->at.s_node) - return f; - } - - return NULL; -} - -static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct ipddp_route __user *rt = ifr->ifr_data; - struct ipddp_route rcp, rcp2, *rp; - - if(!capable(CAP_NET_ADMIN)) - return -EPERM; - - if(copy_from_user(&rcp, rt, sizeof(rcp))) - return -EFAULT; - - switch(cmd) - { - case SIOCADDIPDDPRT: - return ipddp_create(&rcp); - - case SIOCFINDIPDDPRT: - spin_lock_bh(&ipddp_route_lock); - rp = __ipddp_find_route(&rcp); - if (rp) - memcpy(&rcp2, rp, sizeof(rcp2)); - spin_unlock_bh(&ipddp_route_lock); - - if (rp) { - if (copy_to_user(rt, &rcp2, - sizeof(struct ipddp_route))) - return -EFAULT; - return 0; - } else - return -ENOENT; - - case SIOCDELIPDDPRT: - return ipddp_delete(&rcp); - - default: - return -EINVAL; - } -} - -static struct net_device *dev_ipddp; - -MODULE_LICENSE("GPL"); -module_param(ipddp_mode, int, 0); - -static int __init ipddp_init_module(void) -{ - dev_ipddp = ipddp_init(); - if (IS_ERR(dev_ipddp)) - return PTR_ERR(dev_ipddp); - return 0; -} - -static void __exit ipddp_cleanup_module(void) -{ - struct ipddp_route *p; - - unregister_netdev(dev_ipddp); - free_netdev(dev_ipddp); - - while (ipddp_route_list) { - p = ipddp_route_list->next; - kfree(ipddp_route_list); - ipddp_route_list = p; - } -} - -module_init(ipddp_init_module); -module_exit(ipddp_cleanup_module); diff --git a/drivers/net/appletalk/ipddp.h b/drivers/net/appletalk/ipddp.h deleted file mode 100644 index 531519da99a3..000000000000 --- a/drivers/net/appletalk/ipddp.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * ipddp.h: Header for IP-over-DDP driver for Linux. - */ - -#ifndef __LINUX_IPDDP_H -#define __LINUX_IPDDP_H - -#ifdef __KERNEL__ - -#define SIOCADDIPDDPRT (SIOCDEVPRIVATE) -#define SIOCDELIPDDPRT (SIOCDEVPRIVATE+1) -#define SIOCFINDIPDDPRT (SIOCDEVPRIVATE+2) - -struct ipddp_route -{ - struct net_device *dev; /* Carrier device */ - __be32 ip; /* IP address */ - struct atalk_addr at; /* Gateway appletalk address */ - int flags; - struct ipddp_route *next; -}; - -#define IPDDP_ENCAP 1 -#define IPDDP_DECAP 2 - -#endif /* __KERNEL__ */ -#endif /* __LINUX_IPDDP_H */ diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c deleted file mode 100644 index e69eead12ec7..000000000000 --- a/drivers/net/appletalk/ltpc.c +++ /dev/null @@ -1,1288 +0,0 @@ -/*** ltpc.c -- a driver for the LocalTalk PC card. - * - * Copyright (c) 1995,1996 Bradford W. Johnson - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - * This is ALPHA code at best. It may not work for you. It may - * damage your equipment. It may damage your relations with other - * users of your network. Use it at your own risk! - * - * Based in part on: - * skeleton.c by Donald Becker - * dummy.c by Nick Holloway and Alan Cox - * loopback.c by Ross Biro, Fred van Kampen, Donald Becker - * the netatalk source code (UMICH) - * lots of work on the card... - * - * I do not have access to the (proprietary) SDK that goes with the card. - * If you do, I don't want to know about it, and you can probably write - * a better driver yourself anyway. This does mean that the pieces that - * talk to the card are guesswork on my part, so use at your own risk! - * - * This is my first try at writing Linux networking code, and is also - * guesswork. Again, use at your own risk! (Although on this part, I'd - * welcome suggestions) - * - * This is a loadable kernel module which seems to work at my site - * consisting of a 1.2.13 linux box running netatalk 1.3.3, and with - * the kernel support from 1.3.3b2 including patches routing.patch - * and ddp.disappears.from.chooser. In order to run it, you will need - * to patch ddp.c and aarp.c in the kernel, but only a little... - * - * I'm fairly confident that while this is arguably badly written, the - * problems that people experience will be "higher level", that is, with - * complications in the netatalk code. The driver itself doesn't do - * anything terribly complicated -- it pretends to be an ether device - * as far as netatalk is concerned, strips the DDP data out of the ether - * frame and builds a LLAP packet to send out the card. In the other - * direction, it receives LLAP frames from the card and builds a fake - * ether packet that it then tosses up to the networking code. You can - * argue (correctly) that this is an ugly way to do things, but it - * requires a minimal amount of fooling with the code in ddp.c and aarp.c. - * - * The card will do a lot more than is used here -- I *think* it has the - * layers up through ATP. Even if you knew how that part works (which I - * don't) it would be a big job to carve up the kernel ddp code to insert - * things at a higher level, and probably a bad idea... - * - * There are a number of other cards that do LocalTalk on the PC. If - * nobody finds any insurmountable (at the netatalk level) problems - * here, this driver should encourage people to put some work into the - * other cards (some of which I gather are still commercially available) - * and also to put hooks for LocalTalk into the official ddp code. - * - * I welcome comments and suggestions. This is my first try at Linux - * networking stuff, and there are probably lots of things that I did - * suboptimally. - * - ***/ - -/*** - * - * $Log: ltpc.c,v $ - * Revision 1.1.2.1 2000/03/01 05:35:07 jgarzik - * at and tr cleanup - * - * Revision 1.8 1997/01/28 05:44:54 bradford - * Clean up for non-module a little. - * Hacked about a bit to clean things up - Alan Cox - * Probably broken it from the origina 1.8 - * - - * 1998/11/09: David Huggins-Daines - * Cleaned up the initialization code to use the standard autoirq methods, - and to probe for things in the standard order of i/o, irq, dma. This - removes the "reset the reset" hack, because I couldn't figure out an - easy way to get the card to trigger an interrupt after it. - * Added support for passing configuration parameters on the kernel command - line and through insmod - * Changed the device name from "ltalk0" to "lt0", both to conform with the - other localtalk driver, and to clear up the inconsistency between the - module and the non-module versions of the driver :-) - * Added a bunch of comments (I was going to make some enums for the state - codes and the register offsets, but I'm still not sure exactly what their - semantics are) - * Don't poll anymore in interrupt-driven mode - * It seems to work as a module now (as of 2.1.127), but I don't think - I'm responsible for that... - - * - * Revision 1.7 1996/12/12 03:42:33 bradford - * DMA alloc cribbed from 3c505.c. - * - * Revision 1.6 1996/12/12 03:18:58 bradford - * Added virt_to_bus; works in 2.1.13. - * - * Revision 1.5 1996/12/12 03:13:22 root - * xmitQel initialization -- think through better though. - * - * Revision 1.4 1996/06/18 14:55:55 root - * Change names to ltpc. Tabs. Took a shot at dma alloc, - * although more needs to be done eventually. - * - * Revision 1.3 1996/05/22 14:59:39 root - * Change dev->open, dev->close to track dummy.c in 1.99.(around 7) - * - * Revision 1.2 1996/05/22 14:58:24 root - * Change tabs mostly. - * - * Revision 1.1 1996/04/23 04:45:09 root - * Initial revision - * - * Revision 0.16 1996/03/05 15:59:56 root - * Change ARPHRD_LOCALTLK definition to the "real" one. - * - * Revision 0.15 1996/03/05 06:28:30 root - * Changes for kernel 1.3.70. Still need a few patches to kernel, but - * it's getting closer. - * - * Revision 0.14 1996/02/25 17:38:32 root - * More cleanups. Removed query to card on get_stats. - * - * Revision 0.13 1996/02/21 16:27:40 root - * Refix debug_print_skb. Fix mac.raw gotcha that appeared in 1.3.65. - * Clean up receive code a little. - * - * Revision 0.12 1996/02/19 16:34:53 root - * Fix debug_print_skb. Kludge outgoing snet to 0 when using startup - * range. Change debug to mask: 1 for verbose, 2 for higher level stuff - * including packet printing, 4 for lower level (card i/o) stuff. - * - * Revision 0.11 1996/02/12 15:53:38 root - * Added router sends (requires new aarp.c patch) - * - * Revision 0.10 1996/02/11 00:19:35 root - * Change source LTALK_LOGGING debug switch to insmod ... debug=2. - * - * Revision 0.9 1996/02/10 23:59:35 root - * Fixed those fixes for 1.2 -- DANGER! The at.h that comes with netatalk - * has a *different* definition of struct sockaddr_at than the Linux kernel - * does. This is an "insidious and invidious" bug... - * (Actually the preceding comment is false -- it's the atalk.h in the - * ancient atalk-0.06 that's the problem) - * - * Revision 0.8 1996/02/10 19:09:00 root - * Merge 1.3 changes. Tested OK under 1.3.60. - * - * Revision 0.7 1996/02/10 17:56:56 root - * Added debug=1 parameter on insmod for debugging prints. Tried - * to fix timer unload on rmmod, but I don't think that's the problem. - * - * Revision 0.6 1995/12/31 19:01:09 root - * Clean up rmmod, irq comments per feedback from Corin Anderson (Thanks Corey!) - * Clean up initial probing -- sometimes the card wakes up latched in reset. - * - * Revision 0.5 1995/12/22 06:03:44 root - * Added comments in front and cleaned up a bit. - * This version sent out to people. - * - * Revision 0.4 1995/12/18 03:46:44 root - * Return shortDDP to longDDP fake to 0/0. Added command structs. - * - ***/ - -/* ltpc jumpers are: -* -* Interrupts -- set at most one. If none are set, the driver uses -* polled mode. Because the card was developed in the XT era, the -* original documentation refers to IRQ2. Since you'll be running -* this on an AT (or later) class machine, that really means IRQ9. -* -* SW1 IRQ 4 -* SW2 IRQ 3 -* SW3 IRQ 9 (2 in original card documentation only applies to XT) -* -* -* DMA -- choose DMA 1 or 3, and set both corresponding switches. -* -* SW4 DMA 3 -* SW5 DMA 1 -* SW6 DMA 3 -* SW7 DMA 1 -* -* -* I/O address -- choose one. -* -* SW8 220 / 240 -*/ - -/* To have some stuff logged, do -* insmod ltpc.o debug=1 -* -* For a whole bunch of stuff, use higher numbers. -* -* The default is 0, i.e. no messages except for the probe results. -*/ - -/* insmod-tweakable variables */ -static int debug; -#define DEBUG_VERBOSE 1 -#define DEBUG_UPPER 2 -#define DEBUG_LOWER 4 - -static int io; -static int irq; -static int dma; - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -/* our stuff */ -#include "ltpc.h" - -static DEFINE_SPINLOCK(txqueue_lock); -static DEFINE_SPINLOCK(mbox_lock); - -/* function prototypes */ -static int do_read(struct net_device *dev, void *cbuf, int cbuflen, - void *dbuf, int dbuflen); -static int sendup_buffer (struct net_device *dev); - -/* Dma Memory related stuff, cribbed directly from 3c505.c */ - -static unsigned long dma_mem_alloc(int size) -{ - int order = get_order(size); - - return __get_dma_pages(GFP_KERNEL, order); -} - -/* DMA data buffer, DMA command buffer */ -static unsigned char *ltdmabuf; -static unsigned char *ltdmacbuf; - -/* private struct, holds our appletalk address */ - -struct ltpc_private -{ - struct atalk_addr my_addr; -}; - -/* transmit queue element struct */ - -struct xmitQel { - struct xmitQel *next; - /* command buffer */ - unsigned char *cbuf; - short cbuflen; - /* data buffer */ - unsigned char *dbuf; - short dbuflen; - unsigned char QWrite; /* read or write data */ - unsigned char mailbox; -}; - -/* the transmit queue itself */ - -static struct xmitQel *xmQhd, *xmQtl; - -static void enQ(struct xmitQel *qel) -{ - unsigned long flags; - qel->next = NULL; - - spin_lock_irqsave(&txqueue_lock, flags); - if (xmQtl) { - xmQtl->next = qel; - } else { - xmQhd = qel; - } - xmQtl = qel; - spin_unlock_irqrestore(&txqueue_lock, flags); - - if (debug & DEBUG_LOWER) - printk("enqueued a 0x%02x command\n",qel->cbuf[0]); -} - -static struct xmitQel *deQ(void) -{ - unsigned long flags; - int i; - struct xmitQel *qel=NULL; - - spin_lock_irqsave(&txqueue_lock, flags); - if (xmQhd) { - qel = xmQhd; - xmQhd = qel->next; - if(!xmQhd) xmQtl = NULL; - } - spin_unlock_irqrestore(&txqueue_lock, flags); - - if ((debug & DEBUG_LOWER) && qel) { - int n; - printk(KERN_DEBUG "ltpc: dequeued command "); - n = qel->cbuflen; - if (n>100) n=100; - for(i=0;icbuf[i]); - printk("\n"); - } - - return qel; -} - -/* and... the queue elements we'll be using */ -static struct xmitQel qels[16]; - -/* and their corresponding mailboxes */ -static unsigned char mailbox[16]; -static unsigned char mboxinuse[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; - -static int wait_timeout(struct net_device *dev, int c) -{ - /* returns true if it stayed c */ - /* this uses base+6, but it's ok */ - int i; - - /* twenty second or so total */ - - for(i=0;i<200000;i++) { - if ( c != inb_p(dev->base_addr+6) ) return 0; - udelay(100); - } - return 1; /* timed out */ -} - -/* get the first free mailbox */ - -static int getmbox(void) -{ - unsigned long flags; - int i; - - spin_lock_irqsave(&mbox_lock, flags); - for(i=1;i<16;i++) if(!mboxinuse[i]) { - mboxinuse[i]=1; - spin_unlock_irqrestore(&mbox_lock, flags); - return i; - } - spin_unlock_irqrestore(&mbox_lock, flags); - return 0; -} - -/* read a command from the card */ -static void handlefc(struct net_device *dev) -{ - /* called *only* from idle, non-reentrant */ - int dma = dev->dma; - int base = dev->base_addr; - unsigned long flags; - - - flags=claim_dma_lock(); - disable_dma(dma); - clear_dma_ff(dma); - set_dma_mode(dma,DMA_MODE_READ); - set_dma_addr(dma,virt_to_bus(ltdmacbuf)); - set_dma_count(dma,50); - enable_dma(dma); - release_dma_lock(flags); - - inb_p(base+3); - inb_p(base+2); - - if ( wait_timeout(dev,0xfc) ) printk("timed out in handlefc\n"); -} - -/* read data from the card */ -static void handlefd(struct net_device *dev) -{ - int dma = dev->dma; - int base = dev->base_addr; - unsigned long flags; - - flags=claim_dma_lock(); - disable_dma(dma); - clear_dma_ff(dma); - set_dma_mode(dma,DMA_MODE_READ); - set_dma_addr(dma,virt_to_bus(ltdmabuf)); - set_dma_count(dma,800); - enable_dma(dma); - release_dma_lock(flags); - - inb_p(base+3); - inb_p(base+2); - - if ( wait_timeout(dev,0xfd) ) printk("timed out in handlefd\n"); - sendup_buffer(dev); -} - -static void handlewrite(struct net_device *dev) -{ - /* called *only* from idle, non-reentrant */ - /* on entry, 0xfb and ltdmabuf holds data */ - int dma = dev->dma; - int base = dev->base_addr; - unsigned long flags; - - flags=claim_dma_lock(); - disable_dma(dma); - clear_dma_ff(dma); - set_dma_mode(dma,DMA_MODE_WRITE); - set_dma_addr(dma,virt_to_bus(ltdmabuf)); - set_dma_count(dma,800); - enable_dma(dma); - release_dma_lock(flags); - - inb_p(base+3); - inb_p(base+2); - - if ( wait_timeout(dev,0xfb) ) { - flags=claim_dma_lock(); - printk("timed out in handlewrite, dma res %d\n", - get_dma_residue(dev->dma) ); - release_dma_lock(flags); - } -} - -static void handleread(struct net_device *dev) -{ - /* on entry, 0xfb */ - /* on exit, ltdmabuf holds data */ - int dma = dev->dma; - int base = dev->base_addr; - unsigned long flags; - - - flags=claim_dma_lock(); - disable_dma(dma); - clear_dma_ff(dma); - set_dma_mode(dma,DMA_MODE_READ); - set_dma_addr(dma,virt_to_bus(ltdmabuf)); - set_dma_count(dma,800); - enable_dma(dma); - release_dma_lock(flags); - - inb_p(base+3); - inb_p(base+2); - if ( wait_timeout(dev,0xfb) ) printk("timed out in handleread\n"); -} - -static void handlecommand(struct net_device *dev) -{ - /* on entry, 0xfa and ltdmacbuf holds command */ - int dma = dev->dma; - int base = dev->base_addr; - unsigned long flags; - - flags=claim_dma_lock(); - disable_dma(dma); - clear_dma_ff(dma); - set_dma_mode(dma,DMA_MODE_WRITE); - set_dma_addr(dma,virt_to_bus(ltdmacbuf)); - set_dma_count(dma,50); - enable_dma(dma); - release_dma_lock(flags); - inb_p(base+3); - inb_p(base+2); - if ( wait_timeout(dev,0xfa) ) printk("timed out in handlecommand\n"); -} - -/* ready made command for getting the result from the card */ -static unsigned char rescbuf[2] = {LT_GETRESULT,0}; -static unsigned char resdbuf[2]; - -static int QInIdle; - -/* idle expects to be called with the IRQ line high -- either because of - * an interrupt, or because the line is tri-stated - */ - -static void idle(struct net_device *dev) -{ - unsigned long flags; - int state; - /* FIXME This is initialized to shut the warning up, but I need to - * think this through again. - */ - struct xmitQel *q = NULL; - int oops; - int i; - int base = dev->base_addr; - - spin_lock_irqsave(&txqueue_lock, flags); - if(QInIdle) { - spin_unlock_irqrestore(&txqueue_lock, flags); - return; - } - QInIdle = 1; - spin_unlock_irqrestore(&txqueue_lock, flags); - - /* this tri-states the IRQ line */ - (void) inb_p(base+6); - - oops = 100; - -loop: - if (0>oops--) { - printk("idle: looped too many times\n"); - goto done; - } - - state = inb_p(base+6); - if (state != inb_p(base+6)) goto loop; - - switch(state) { - case 0xfc: - /* incoming command */ - if (debug & DEBUG_LOWER) printk("idle: fc\n"); - handlefc(dev); - break; - case 0xfd: - /* incoming data */ - if(debug & DEBUG_LOWER) printk("idle: fd\n"); - handlefd(dev); - break; - case 0xf9: - /* result ready */ - if (debug & DEBUG_LOWER) printk("idle: f9\n"); - if(!mboxinuse[0]) { - mboxinuse[0] = 1; - qels[0].cbuf = rescbuf; - qels[0].cbuflen = 2; - qels[0].dbuf = resdbuf; - qels[0].dbuflen = 2; - qels[0].QWrite = 0; - qels[0].mailbox = 0; - enQ(&qels[0]); - } - inb_p(dev->base_addr+1); - inb_p(dev->base_addr+0); - if( wait_timeout(dev,0xf9) ) - printk("timed out idle f9\n"); - break; - case 0xf8: - /* ?? */ - if (xmQhd) { - inb_p(dev->base_addr+1); - inb_p(dev->base_addr+0); - if(wait_timeout(dev,0xf8) ) - printk("timed out idle f8\n"); - } else { - goto done; - } - break; - case 0xfa: - /* waiting for command */ - if(debug & DEBUG_LOWER) printk("idle: fa\n"); - if (xmQhd) { - q=deQ(); - memcpy(ltdmacbuf,q->cbuf,q->cbuflen); - ltdmacbuf[1] = q->mailbox; - if (debug>1) { - int n; - printk("ltpc: sent command "); - n = q->cbuflen; - if (n>100) n=100; - for(i=0;iQWrite) { - memcpy(ltdmabuf,q->dbuf,q->dbuflen); - handlewrite(dev); - } else { - handleread(dev); - /* non-zero mailbox numbers are for - commmands, 0 is for GETRESULT - requests */ - if(q->mailbox) { - memcpy(q->dbuf,ltdmabuf,q->dbuflen); - } else { - /* this was a result */ - mailbox[ 0x0f & ltdmabuf[0] ] = ltdmabuf[1]; - mboxinuse[0]=0; - } - } - break; - } - goto loop; - -done: - QInIdle=0; - - /* now set the interrupts back as appropriate */ - /* the first read takes it out of tri-state (but still high) */ - /* the second resets it */ - /* note that after this point, any read of base+6 will - trigger an interrupt */ - - if (dev->irq) { - inb_p(base+7); - inb_p(base+7); - } -} - - -static int do_write(struct net_device *dev, void *cbuf, int cbuflen, - void *dbuf, int dbuflen) -{ - - int i = getmbox(); - int ret; - - if(i) { - qels[i].cbuf = (unsigned char *) cbuf; - qels[i].cbuflen = cbuflen; - qels[i].dbuf = (unsigned char *) dbuf; - qels[i].dbuflen = dbuflen; - qels[i].QWrite = 1; - qels[i].mailbox = i; /* this should be initted rather */ - enQ(&qels[i]); - idle(dev); - ret = mailbox[i]; - mboxinuse[i]=0; - return ret; - } - printk("ltpc: could not allocate mbox\n"); - return -1; -} - -static int do_read(struct net_device *dev, void *cbuf, int cbuflen, - void *dbuf, int dbuflen) -{ - - int i = getmbox(); - int ret; - - if(i) { - qels[i].cbuf = (unsigned char *) cbuf; - qels[i].cbuflen = cbuflen; - qels[i].dbuf = (unsigned char *) dbuf; - qels[i].dbuflen = dbuflen; - qels[i].QWrite = 0; - qels[i].mailbox = i; /* this should be initted rather */ - enQ(&qels[i]); - idle(dev); - ret = mailbox[i]; - mboxinuse[i]=0; - return ret; - } - printk("ltpc: could not allocate mbox\n"); - return -1; -} - -/* end of idle handlers -- what should be seen is do_read, do_write */ - -static struct timer_list ltpc_timer; - -static netdev_tx_t ltpc_xmit(struct sk_buff *skb, struct net_device *dev); - -static int read_30 ( struct net_device *dev) -{ - lt_command c; - c.getflags.command = LT_GETFLAGS; - return do_read(dev, &c, sizeof(c.getflags),&c,0); -} - -static int set_30 (struct net_device *dev,int x) -{ - lt_command c; - c.setflags.command = LT_SETFLAGS; - c.setflags.flags = x; - return do_write(dev, &c, sizeof(c.setflags),&c,0); -} - -/* LLAP to DDP translation */ - -static int sendup_buffer (struct net_device *dev) -{ - /* on entry, command is in ltdmacbuf, data in ltdmabuf */ - /* called from idle, non-reentrant */ - - int dnode, snode, llaptype, len; - int sklen; - struct sk_buff *skb; - struct lt_rcvlap *ltc = (struct lt_rcvlap *) ltdmacbuf; - - if (ltc->command != LT_RCVLAP) { - printk("unknown command 0x%02x from ltpc card\n",ltc->command); - return -1; - } - dnode = ltc->dnode; - snode = ltc->snode; - llaptype = ltc->laptype; - len = ltc->length; - - sklen = len; - if (llaptype == 1) - sklen += 8; /* correct for short ddp */ - if(sklen > 800) { - printk(KERN_INFO "%s: nonsense length in ltpc command 0x14: 0x%08x\n", - dev->name,sklen); - return -1; - } - - if ( (llaptype==0) || (llaptype>2) ) { - printk(KERN_INFO "%s: unknown LLAP type: %d\n",dev->name,llaptype); - return -1; - } - - - skb = dev_alloc_skb(3+sklen); - if (skb == NULL) - { - printk("%s: dropping packet due to memory squeeze.\n", - dev->name); - return -1; - } - skb->dev = dev; - - if (sklen > len) - skb_reserve(skb,8); - skb_put(skb,len+3); - skb->protocol = htons(ETH_P_LOCALTALK); - /* add LLAP header */ - skb->data[0] = dnode; - skb->data[1] = snode; - skb->data[2] = llaptype; - skb_reset_mac_header(skb); /* save pointer to llap header */ - skb_pull(skb,3); - - /* copy ddp(s,e)hdr + contents */ - skb_copy_to_linear_data(skb, ltdmabuf, len); - - skb_reset_transport_header(skb); - - dev->stats.rx_packets++; - dev->stats.rx_bytes += skb->len; - - /* toss it onwards */ - netif_rx(skb); - return 0; -} - -/* the handler for the board interrupt */ - -static irqreturn_t -ltpc_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - - if (dev==NULL) { - printk("ltpc_interrupt: unknown device.\n"); - return IRQ_NONE; - } - - inb_p(dev->base_addr+6); /* disable further interrupts from board */ - - idle(dev); /* handle whatever is coming in */ - - /* idle re-enables interrupts from board */ - - return IRQ_HANDLED; -} - -/*** - * - * The ioctls that the driver responds to are: - * - * SIOCSIFADDR -- do probe using the passed node hint. - * SIOCGIFADDR -- return net, node. - * - * some of this stuff should be done elsewhere. - * - ***/ - -static int ltpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - struct sockaddr_at *sa = (struct sockaddr_at *) &ifr->ifr_addr; - /* we'll keep the localtalk node address in dev->pa_addr */ - struct ltpc_private *ltpc_priv = netdev_priv(dev); - struct atalk_addr *aa = <pc_priv->my_addr; - struct lt_init c; - int ltflags; - - if(debug & DEBUG_VERBOSE) printk("ltpc_ioctl called\n"); - - switch(cmd) { - case SIOCSIFADDR: - - aa->s_net = sa->sat_addr.s_net; - - /* this does the probe and returns the node addr */ - c.command = LT_INIT; - c.hint = sa->sat_addr.s_node; - - aa->s_node = do_read(dev,&c,sizeof(c),&c,0); - - /* get all llap frames raw */ - ltflags = read_30(dev); - ltflags |= LT_FLAG_ALLLAP; - set_30 (dev,ltflags); - - dev->broadcast[0] = 0xFF; - dev->dev_addr[0] = aa->s_node; - - dev->addr_len=1; - - return 0; - - case SIOCGIFADDR: - - sa->sat_addr.s_net = aa->s_net; - sa->sat_addr.s_node = aa->s_node; - - return 0; - - default: - return -EINVAL; - } -} - -static void set_multicast_list(struct net_device *dev) -{ - /* This needs to be present to keep netatalk happy. */ - /* Actually netatalk needs fixing! */ -} - -static int ltpc_poll_counter; - -static void ltpc_poll(unsigned long l) -{ - struct net_device *dev = (struct net_device *) l; - - del_timer(<pc_timer); - - if(debug & DEBUG_VERBOSE) { - if (!ltpc_poll_counter) { - ltpc_poll_counter = 50; - printk("ltpc poll is alive\n"); - } - ltpc_poll_counter--; - } - - if (!dev) - return; /* we've been downed */ - - /* poll 20 times per second */ - idle(dev); - ltpc_timer.expires = jiffies + HZ/20; - - add_timer(<pc_timer); -} - -/* DDP to LLAP translation */ - -static netdev_tx_t ltpc_xmit(struct sk_buff *skb, struct net_device *dev) -{ - /* in kernel 1.3.xx, on entry skb->data points to ddp header, - * and skb->len is the length of the ddp data + ddp header - */ - int i; - struct lt_sendlap cbuf; - unsigned char *hdr; - - cbuf.command = LT_SENDLAP; - cbuf.dnode = skb->data[0]; - cbuf.laptype = skb->data[2]; - skb_pull(skb,3); /* skip past LLAP header */ - cbuf.length = skb->len; /* this is host order */ - skb_reset_transport_header(skb); - - if(debug & DEBUG_UPPER) { - printk("command "); - for(i=0;i<6;i++) - printk("%02x ",((unsigned char *)&cbuf)[i]); - printk("\n"); - } - - hdr = skb_transport_header(skb); - do_write(dev, &cbuf, sizeof(cbuf), hdr, skb->len); - - if(debug & DEBUG_UPPER) { - printk("sent %d ddp bytes\n",skb->len); - for (i = 0; i < skb->len; i++) - printk("%02x ", hdr[i]); - printk("\n"); - } - - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - -/* initialization stuff */ - -static int __init ltpc_probe_dma(int base, int dma) -{ - int want = (dma == 3) ? 2 : (dma == 1) ? 1 : 3; - unsigned long timeout; - unsigned long f; - - if (want & 1) { - if (request_dma(1,"ltpc")) { - want &= ~1; - } else { - f=claim_dma_lock(); - disable_dma(1); - clear_dma_ff(1); - set_dma_mode(1,DMA_MODE_WRITE); - set_dma_addr(1,virt_to_bus(ltdmabuf)); - set_dma_count(1,sizeof(struct lt_mem)); - enable_dma(1); - release_dma_lock(f); - } - } - if (want & 2) { - if (request_dma(3,"ltpc")) { - want &= ~2; - } else { - f=claim_dma_lock(); - disable_dma(3); - clear_dma_ff(3); - set_dma_mode(3,DMA_MODE_WRITE); - set_dma_addr(3,virt_to_bus(ltdmabuf)); - set_dma_count(3,sizeof(struct lt_mem)); - enable_dma(3); - release_dma_lock(f); - } - } - /* set up request */ - - /* FIXME -- do timings better! */ - - ltdmabuf[0] = LT_READMEM; - ltdmabuf[1] = 1; /* mailbox */ - ltdmabuf[2] = 0; ltdmabuf[3] = 0; /* address */ - ltdmabuf[4] = 0; ltdmabuf[5] = 1; /* read 0x0100 bytes */ - ltdmabuf[6] = 0; /* dunno if this is necessary */ - - inb_p(io+1); - inb_p(io+0); - timeout = jiffies+100*HZ/100; - while(time_before(jiffies, timeout)) { - if ( 0xfa == inb_p(io+6) ) break; - } - - inb_p(io+3); - inb_p(io+2); - while(time_before(jiffies, timeout)) { - if ( 0xfb == inb_p(io+6) ) break; - } - - /* release the other dma channel (if we opened both of them) */ - - if ((want & 2) && (get_dma_residue(3)==sizeof(struct lt_mem))) { - want &= ~2; - free_dma(3); - } - - if ((want & 1) && (get_dma_residue(1)==sizeof(struct lt_mem))) { - want &= ~1; - free_dma(1); - } - - if (!want) - return 0; - - return (want & 2) ? 3 : 1; -} - -static const struct net_device_ops ltpc_netdev = { - .ndo_start_xmit = ltpc_xmit, - .ndo_do_ioctl = ltpc_ioctl, - .ndo_set_multicast_list = set_multicast_list, -}; - -struct net_device * __init ltpc_probe(void) -{ - struct net_device *dev; - int err = -ENOMEM; - int x=0,y=0; - int autoirq; - unsigned long f; - unsigned long timeout; - - dev = alloc_ltalkdev(sizeof(struct ltpc_private)); - if (!dev) - goto out; - - /* probe for the I/O port address */ - - if (io != 0x240 && request_region(0x220,8,"ltpc")) { - x = inb_p(0x220+6); - if ( (x!=0xff) && (x>=0xf0) ) { - io = 0x220; - goto got_port; - } - release_region(0x220,8); - } - if (io != 0x220 && request_region(0x240,8,"ltpc")) { - y = inb_p(0x240+6); - if ( (y!=0xff) && (y>=0xf0) ){ - io = 0x240; - goto got_port; - } - release_region(0x240,8); - } - - /* give up in despair */ - printk(KERN_ERR "LocalTalk card not found; 220 = %02x, 240 = %02x.\n", x,y); - err = -ENODEV; - goto out1; - - got_port: - /* probe for the IRQ line */ - if (irq < 2) { - unsigned long irq_mask; - - irq_mask = probe_irq_on(); - /* reset the interrupt line */ - inb_p(io+7); - inb_p(io+7); - /* trigger an interrupt (I hope) */ - inb_p(io+6); - mdelay(2); - autoirq = probe_irq_off(irq_mask); - - if (autoirq == 0) { - printk(KERN_ERR "ltpc: probe at %#x failed to detect IRQ line.\n", io); - } else { - irq = autoirq; - } - } - - /* allocate a DMA buffer */ - ltdmabuf = (unsigned char *) dma_mem_alloc(1000); - if (!ltdmabuf) { - printk(KERN_ERR "ltpc: mem alloc failed\n"); - err = -ENOMEM; - goto out2; - } - - ltdmacbuf = <dmabuf[800]; - - if(debug & DEBUG_VERBOSE) { - printk("ltdmabuf pointer %08lx\n",(unsigned long) ltdmabuf); - } - - /* reset the card */ - - inb_p(io+1); - inb_p(io+3); - - msleep(20); - - inb_p(io+0); - inb_p(io+2); - inb_p(io+7); /* clear reset */ - inb_p(io+4); - inb_p(io+5); - inb_p(io+5); /* enable dma */ - inb_p(io+6); /* tri-state interrupt line */ - - ssleep(1); - - /* now, figure out which dma channel we're using, unless it's - already been specified */ - /* well, 0 is a legal DMA channel, but the LTPC card doesn't - use it... */ - dma = ltpc_probe_dma(io, dma); - if (!dma) { /* no dma channel */ - printk(KERN_ERR "No DMA channel found on ltpc card.\n"); - err = -ENODEV; - goto out3; - } - - /* print out friendly message */ - if(irq) - printk(KERN_INFO "Apple/Farallon LocalTalk-PC card at %03x, IR%d, DMA%d.\n",io,irq,dma); - else - printk(KERN_INFO "Apple/Farallon LocalTalk-PC card at %03x, DMA%d. Using polled mode.\n",io,dma); - - dev->netdev_ops = <pc_netdev; - dev->base_addr = io; - dev->irq = irq; - dev->dma = dma; - - /* the card will want to send a result at this point */ - /* (I think... leaving out this part makes the kernel crash, - so I put it back in...) */ - - f=claim_dma_lock(); - disable_dma(dma); - clear_dma_ff(dma); - set_dma_mode(dma,DMA_MODE_READ); - set_dma_addr(dma,virt_to_bus(ltdmabuf)); - set_dma_count(dma,0x100); - enable_dma(dma); - release_dma_lock(f); - - (void) inb_p(io+3); - (void) inb_p(io+2); - timeout = jiffies+100*HZ/100; - - while(time_before(jiffies, timeout)) { - if( 0xf9 == inb_p(io+6)) - break; - schedule(); - } - - if(debug & DEBUG_VERBOSE) { - printk("setting up timer and irq\n"); - } - - /* grab it and don't let go :-) */ - if (irq && request_irq( irq, ltpc_interrupt, 0, "ltpc", dev) >= 0) - { - (void) inb_p(io+7); /* enable interrupts from board */ - (void) inb_p(io+7); /* and reset irq line */ - } else { - if( irq ) - printk(KERN_ERR "ltpc: IRQ already in use, using polled mode.\n"); - dev->irq = 0; - /* polled mode -- 20 times per second */ - /* this is really, really slow... should it poll more often? */ - init_timer(<pc_timer); - ltpc_timer.function=ltpc_poll; - ltpc_timer.data = (unsigned long) dev; - - ltpc_timer.expires = jiffies + HZ/20; - add_timer(<pc_timer); - } - err = register_netdev(dev); - if (err) - goto out4; - - return NULL; -out4: - del_timer_sync(<pc_timer); - if (dev->irq) - free_irq(dev->irq, dev); -out3: - free_pages((unsigned long)ltdmabuf, get_order(1000)); -out2: - release_region(io, 8); -out1: - free_netdev(dev); -out: - return ERR_PTR(err); -} - -#ifndef MODULE -/* handles "ltpc=io,irq,dma" kernel command lines */ -static int __init ltpc_setup(char *str) -{ - int ints[5]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - if (ints[0] == 0) { - if (str && !strncmp(str, "auto", 4)) { - /* do nothing :-) */ - } - else { - /* usage message */ - printk (KERN_ERR - "ltpc: usage: ltpc=auto|iobase[,irq[,dma]]\n"); - return 0; - } - } else { - io = ints[1]; - if (ints[0] > 1) { - irq = ints[2]; - } - if (ints[0] > 2) { - dma = ints[3]; - } - /* ignore any other parameters */ - } - return 1; -} - -__setup("ltpc=", ltpc_setup); -#endif /* MODULE */ - -static struct net_device *dev_ltpc; - -#ifdef MODULE - -MODULE_LICENSE("GPL"); -module_param(debug, int, 0); -module_param(io, int, 0); -module_param(irq, int, 0); -module_param(dma, int, 0); - - -static int __init ltpc_module_init(void) -{ - if(io == 0) - printk(KERN_NOTICE - "ltpc: Autoprobing is not recommended for modules\n"); - - dev_ltpc = ltpc_probe(); - if (IS_ERR(dev_ltpc)) - return PTR_ERR(dev_ltpc); - return 0; -} -module_init(ltpc_module_init); -#endif - -static void __exit ltpc_cleanup(void) -{ - - if(debug & DEBUG_VERBOSE) printk("unregister_netdev\n"); - unregister_netdev(dev_ltpc); - - ltpc_timer.data = 0; /* signal the poll routine that we're done */ - - del_timer_sync(<pc_timer); - - if(debug & DEBUG_VERBOSE) printk("freeing irq\n"); - - if (dev_ltpc->irq) - free_irq(dev_ltpc->irq, dev_ltpc); - - if(debug & DEBUG_VERBOSE) printk("freeing dma\n"); - - if (dev_ltpc->dma) - free_dma(dev_ltpc->dma); - - if(debug & DEBUG_VERBOSE) printk("freeing ioaddr\n"); - - if (dev_ltpc->base_addr) - release_region(dev_ltpc->base_addr,8); - - free_netdev(dev_ltpc); - - if(debug & DEBUG_VERBOSE) printk("free_pages\n"); - - free_pages( (unsigned long) ltdmabuf, get_order(1000)); - - if(debug & DEBUG_VERBOSE) printk("returning from cleanup_module\n"); -} - -module_exit(ltpc_cleanup); diff --git a/drivers/net/appletalk/ltpc.h b/drivers/net/appletalk/ltpc.h deleted file mode 100644 index cd30544a3729..000000000000 --- a/drivers/net/appletalk/ltpc.h +++ /dev/null @@ -1,73 +0,0 @@ -/*** ltpc.h - * - * - ***/ - -#define LT_GETRESULT 0x00 -#define LT_WRITEMEM 0x01 -#define LT_READMEM 0x02 -#define LT_GETFLAGS 0x04 -#define LT_SETFLAGS 0x05 -#define LT_INIT 0x10 -#define LT_SENDLAP 0x13 -#define LT_RCVLAP 0x14 - -/* the flag that we care about */ -#define LT_FLAG_ALLLAP 0x04 - -struct lt_getresult { - unsigned char command; - unsigned char mailbox; -}; - -struct lt_mem { - unsigned char command; - unsigned char mailbox; - unsigned short addr; /* host order */ - unsigned short length; /* host order */ -}; - -struct lt_setflags { - unsigned char command; - unsigned char mailbox; - unsigned char flags; -}; - -struct lt_getflags { - unsigned char command; - unsigned char mailbox; -}; - -struct lt_init { - unsigned char command; - unsigned char mailbox; - unsigned char hint; -}; - -struct lt_sendlap { - unsigned char command; - unsigned char mailbox; - unsigned char dnode; - unsigned char laptype; - unsigned short length; /* host order */ -}; - -struct lt_rcvlap { - unsigned char command; - unsigned char dnode; - unsigned char snode; - unsigned char laptype; - unsigned short length; /* host order */ -}; - -union lt_command { - struct lt_getresult getresult; - struct lt_mem mem; - struct lt_setflags setflags; - struct lt_getflags getflags; - struct lt_init init; - struct lt_sendlap sendlap; - struct lt_rcvlap rcvlap; -}; -typedef union lt_command lt_command; - diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index b80755da5394..584d4e264807 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -169,6 +169,8 @@ source "drivers/staging/bcm/Kconfig" source "drivers/staging/ft1000/Kconfig" +source "drivers/staging/appletalk/Kconfig" + source "drivers/staging/intel_sst/Kconfig" source "drivers/staging/speakup/Kconfig" diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index fd26509e5efa..88f0c64e7e58 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -65,6 +65,7 @@ obj-$(CONFIG_ATH6K_LEGACY) += ath6kl/ obj-$(CONFIG_USB_ENESTORAGE) += keucr/ obj-$(CONFIG_BCM_WIMAX) += bcm/ obj-$(CONFIG_FT1000) += ft1000/ +obj-$(CONFIG_DEV_APPLETALK) += appletalk/ obj-$(CONFIG_SND_INTEL_SST) += intel_sst/ obj-$(CONFIG_SPEAKUP) += speakup/ obj-$(CONFIG_TOUCHSCREEN_CLEARPAD_TM1217) += cptm1217/ diff --git a/drivers/staging/appletalk/Kconfig b/drivers/staging/appletalk/Kconfig new file mode 100644 index 000000000000..0b376a990972 --- /dev/null +++ b/drivers/staging/appletalk/Kconfig @@ -0,0 +1,126 @@ +# +# Appletalk driver configuration +# +config ATALK + tristate "Appletalk protocol support" + depends on BKL # waiting to be removed from net/appletalk/ddp.c + select LLC + ---help--- + AppleTalk is the protocol that Apple computers can use to communicate + on a network. If your Linux box is connected to such a network and you + wish to connect to it, say Y. You will need to use the netatalk package + so that your Linux box can act as a print and file server for Macs as + well as access AppleTalk printers. Check out + on the WWW for details. + EtherTalk is the name used for AppleTalk over Ethernet and the + cheaper and slower LocalTalk is AppleTalk over a proprietary Apple + network using serial links. EtherTalk and LocalTalk are fully + supported by Linux. + + General information about how to connect Linux, Windows machines and + Macs is on the WWW at . The + NET3-4-HOWTO, available from + , contains valuable + information as well. + + To compile this driver as a module, choose M here: the module will be + called appletalk. You almost certainly want to compile it as a + module so you can restart your AppleTalk stack without rebooting + your machine. I hear that the GNU boycott of Apple is over, so + even politically correct people are allowed to say Y here. + +config DEV_APPLETALK + tristate "Appletalk interfaces support" + depends on ATALK + help + AppleTalk is the protocol that Apple computers can use to communicate + on a network. If your Linux box is connected to such a network, and wish + to do IP over it, or you have a LocalTalk card and wish to use it to + connect to the AppleTalk network, say Y. + + +config LTPC + tristate "Apple/Farallon LocalTalk PC support" + depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API + help + This allows you to use the AppleTalk PC card to connect to LocalTalk + networks. The card is also known as the Farallon PhoneNet PC card. + If you are in doubt, this card is the one with the 65C02 chip on it. + You also need version 1.3.3 or later of the netatalk package. + This driver is experimental, which means that it may not work. + See the file . + +config COPS + tristate "COPS LocalTalk PC support" + depends on DEV_APPLETALK && (ISA || EISA) + help + This allows you to use COPS AppleTalk cards to connect to LocalTalk + networks. You also need version 1.3.3 or later of the netatalk + package. This driver is experimental, which means that it may not + work. This driver will only work if you choose "AppleTalk DDP" + networking support, above. + Please read the file . + +config COPS_DAYNA + bool "Dayna firmware support" + depends on COPS + help + Support COPS compatible cards with Dayna style firmware (Dayna + DL2000/ Daynatalk/PC (half length), COPS LT-95, Farallon PhoneNET PC + III, Farallon PhoneNET PC II). + +config COPS_TANGENT + bool "Tangent firmware support" + depends on COPS + help + Support COPS compatible cards with Tangent style firmware (Tangent + ATB_II, Novell NL-1000, Daystar Digital LT-200. + +config IPDDP + tristate "Appletalk-IP driver support" + depends on DEV_APPLETALK && ATALK + ---help--- + This allows IP networking for users who only have AppleTalk + networking available. This feature is experimental. With this + driver, you can encapsulate IP inside AppleTalk (e.g. if your Linux + box is stuck on an AppleTalk only network) or decapsulate (e.g. if + you want your Linux box to act as an Internet gateway for a zoo of + AppleTalk connected Macs). Please see the file + for more information. + + If you say Y here, the AppleTalk-IP support will be compiled into + the kernel. In this case, you can either use encapsulation or + decapsulation, but not both. With the following two questions, you + decide which one you want. + + To compile the AppleTalk-IP support as a module, choose M here: the + module will be called ipddp. + In this case, you will be able to use both encapsulation and + decapsulation simultaneously, by loading two copies of the module + and specifying different values for the module option ipddp_mode. + +config IPDDP_ENCAP + bool "IP to Appletalk-IP Encapsulation support" + depends on IPDDP + help + If you say Y here, the AppleTalk-IP code will be able to encapsulate + IP packets inside AppleTalk frames; this is useful if your Linux box + is stuck on an AppleTalk network (which hopefully contains a + decapsulator somewhere). Please see + for more information. If + you said Y to "AppleTalk-IP driver support" above and you say Y + here, then you cannot say Y to "AppleTalk-IP to IP Decapsulation + support", below. + +config IPDDP_DECAP + bool "Appletalk-IP to IP Decapsulation support" + depends on IPDDP + help + If you say Y here, the AppleTalk-IP code will be able to decapsulate + AppleTalk-IP frames to IP packets; this is useful if you want your + Linux box to act as an Internet gateway for an AppleTalk network. + Please see for more + information. If you said Y to "AppleTalk-IP driver support" above + and you say Y here, then you cannot say Y to "IP to AppleTalk-IP + Encapsulation support", above. + diff --git a/drivers/staging/appletalk/Makefile b/drivers/staging/appletalk/Makefile new file mode 100644 index 000000000000..2a5129a5c6bc --- /dev/null +++ b/drivers/staging/appletalk/Makefile @@ -0,0 +1,12 @@ +# +# Makefile for drivers/staging/appletalk +# +obj-$(CONFIG_ATALK) += appletalk.o + +appletalk-y := aarp.o ddp.o dev.o +appletalk-$(CONFIG_PROC_FS) += atalk_proc.o +appletalk-$(CONFIG_SYSCTL) += sysctl_net_atalk.o + +obj-$(CONFIG_IPDDP) += ipddp.o +obj-$(CONFIG_COPS) += cops.o +obj-$(CONFIG_LTPC) += ltpc.o diff --git a/drivers/staging/appletalk/aarp.c b/drivers/staging/appletalk/aarp.c new file mode 100644 index 000000000000..7163a1dd501f --- /dev/null +++ b/drivers/staging/appletalk/aarp.c @@ -0,0 +1,1063 @@ +/* + * AARP: An implementation of the AppleTalk AARP protocol for + * Ethernet 'ELAP'. + * + * Alan Cox + * + * This doesn't fit cleanly with the IP arp. Potentially we can use + * the generic neighbour discovery code to clean this up. + * + * FIXME: + * We ought to handle the retransmits with a single list and a + * separate fast timer for when it is needed. + * Use neighbour discovery code. + * Token Ring Support. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * + * References: + * Inside AppleTalk (2nd Ed). + * Fixes: + * Jaume Grau - flush caches on AARP_PROBE + * Rob Newberry - Added proxy AARP and AARP proc fs, + * moved probing from DDP module. + * Arnaldo C. Melo - don't mangle rx packets + * + */ + +#include +#include +#include +#include +#include +#include "atalk.h" +#include +#include +#include +#include + +int sysctl_aarp_expiry_time = AARP_EXPIRY_TIME; +int sysctl_aarp_tick_time = AARP_TICK_TIME; +int sysctl_aarp_retransmit_limit = AARP_RETRANSMIT_LIMIT; +int sysctl_aarp_resolve_time = AARP_RESOLVE_TIME; + +/* Lists of aarp entries */ +/** + * struct aarp_entry - AARP entry + * @last_sent - Last time we xmitted the aarp request + * @packet_queue - Queue of frames wait for resolution + * @status - Used for proxy AARP + * expires_at - Entry expiry time + * target_addr - DDP Address + * dev - Device to use + * hwaddr - Physical i/f address of target/router + * xmit_count - When this hits 10 we give up + * next - Next entry in chain + */ +struct aarp_entry { + /* These first two are only used for unresolved entries */ + unsigned long last_sent; + struct sk_buff_head packet_queue; + int status; + unsigned long expires_at; + struct atalk_addr target_addr; + struct net_device *dev; + char hwaddr[6]; + unsigned short xmit_count; + struct aarp_entry *next; +}; + +/* Hashed list of resolved, unresolved and proxy entries */ +static struct aarp_entry *resolved[AARP_HASH_SIZE]; +static struct aarp_entry *unresolved[AARP_HASH_SIZE]; +static struct aarp_entry *proxies[AARP_HASH_SIZE]; +static int unresolved_count; + +/* One lock protects it all. */ +static DEFINE_RWLOCK(aarp_lock); + +/* Used to walk the list and purge/kick entries. */ +static struct timer_list aarp_timer; + +/* + * Delete an aarp queue + * + * Must run under aarp_lock. + */ +static void __aarp_expire(struct aarp_entry *a) +{ + skb_queue_purge(&a->packet_queue); + kfree(a); +} + +/* + * Send an aarp queue entry request + * + * Must run under aarp_lock. + */ +static void __aarp_send_query(struct aarp_entry *a) +{ + static unsigned char aarp_eth_multicast[ETH_ALEN] = + { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; + struct net_device *dev = a->dev; + struct elapaarp *eah; + int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; + struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); + struct atalk_addr *sat = atalk_find_dev_addr(dev); + + if (!skb) + return; + + if (!sat) { + kfree_skb(skb); + return; + } + + /* Set up the buffer */ + skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); + skb_reset_network_header(skb); + skb_reset_transport_header(skb); + skb_put(skb, sizeof(*eah)); + skb->protocol = htons(ETH_P_ATALK); + skb->dev = dev; + eah = aarp_hdr(skb); + + /* Set up the ARP */ + eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); + eah->pa_type = htons(ETH_P_ATALK); + eah->hw_len = ETH_ALEN; + eah->pa_len = AARP_PA_ALEN; + eah->function = htons(AARP_REQUEST); + + memcpy(eah->hw_src, dev->dev_addr, ETH_ALEN); + + eah->pa_src_zero = 0; + eah->pa_src_net = sat->s_net; + eah->pa_src_node = sat->s_node; + + memset(eah->hw_dst, '\0', ETH_ALEN); + + eah->pa_dst_zero = 0; + eah->pa_dst_net = a->target_addr.s_net; + eah->pa_dst_node = a->target_addr.s_node; + + /* Send it */ + aarp_dl->request(aarp_dl, skb, aarp_eth_multicast); + /* Update the sending count */ + a->xmit_count++; + a->last_sent = jiffies; +} + +/* This runs under aarp_lock and in softint context, so only atomic memory + * allocations can be used. */ +static void aarp_send_reply(struct net_device *dev, struct atalk_addr *us, + struct atalk_addr *them, unsigned char *sha) +{ + struct elapaarp *eah; + int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; + struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); + + if (!skb) + return; + + /* Set up the buffer */ + skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); + skb_reset_network_header(skb); + skb_reset_transport_header(skb); + skb_put(skb, sizeof(*eah)); + skb->protocol = htons(ETH_P_ATALK); + skb->dev = dev; + eah = aarp_hdr(skb); + + /* Set up the ARP */ + eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); + eah->pa_type = htons(ETH_P_ATALK); + eah->hw_len = ETH_ALEN; + eah->pa_len = AARP_PA_ALEN; + eah->function = htons(AARP_REPLY); + + memcpy(eah->hw_src, dev->dev_addr, ETH_ALEN); + + eah->pa_src_zero = 0; + eah->pa_src_net = us->s_net; + eah->pa_src_node = us->s_node; + + if (!sha) + memset(eah->hw_dst, '\0', ETH_ALEN); + else + memcpy(eah->hw_dst, sha, ETH_ALEN); + + eah->pa_dst_zero = 0; + eah->pa_dst_net = them->s_net; + eah->pa_dst_node = them->s_node; + + /* Send it */ + aarp_dl->request(aarp_dl, skb, sha); +} + +/* + * Send probe frames. Called from aarp_probe_network and + * aarp_proxy_probe_network. + */ + +static void aarp_send_probe(struct net_device *dev, struct atalk_addr *us) +{ + struct elapaarp *eah; + int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; + struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); + static unsigned char aarp_eth_multicast[ETH_ALEN] = + { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; + + if (!skb) + return; + + /* Set up the buffer */ + skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); + skb_reset_network_header(skb); + skb_reset_transport_header(skb); + skb_put(skb, sizeof(*eah)); + skb->protocol = htons(ETH_P_ATALK); + skb->dev = dev; + eah = aarp_hdr(skb); + + /* Set up the ARP */ + eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); + eah->pa_type = htons(ETH_P_ATALK); + eah->hw_len = ETH_ALEN; + eah->pa_len = AARP_PA_ALEN; + eah->function = htons(AARP_PROBE); + + memcpy(eah->hw_src, dev->dev_addr, ETH_ALEN); + + eah->pa_src_zero = 0; + eah->pa_src_net = us->s_net; + eah->pa_src_node = us->s_node; + + memset(eah->hw_dst, '\0', ETH_ALEN); + + eah->pa_dst_zero = 0; + eah->pa_dst_net = us->s_net; + eah->pa_dst_node = us->s_node; + + /* Send it */ + aarp_dl->request(aarp_dl, skb, aarp_eth_multicast); +} + +/* + * Handle an aarp timer expire + * + * Must run under the aarp_lock. + */ + +static void __aarp_expire_timer(struct aarp_entry **n) +{ + struct aarp_entry *t; + + while (*n) + /* Expired ? */ + if (time_after(jiffies, (*n)->expires_at)) { + t = *n; + *n = (*n)->next; + __aarp_expire(t); + } else + n = &((*n)->next); +} + +/* + * Kick all pending requests 5 times a second. + * + * Must run under the aarp_lock. + */ +static void __aarp_kick(struct aarp_entry **n) +{ + struct aarp_entry *t; + + while (*n) + /* Expired: if this will be the 11th tx, we delete instead. */ + if ((*n)->xmit_count >= sysctl_aarp_retransmit_limit) { + t = *n; + *n = (*n)->next; + __aarp_expire(t); + } else { + __aarp_send_query(*n); + n = &((*n)->next); + } +} + +/* + * A device has gone down. Take all entries referring to the device + * and remove them. + * + * Must run under the aarp_lock. + */ +static void __aarp_expire_device(struct aarp_entry **n, struct net_device *dev) +{ + struct aarp_entry *t; + + while (*n) + if ((*n)->dev == dev) { + t = *n; + *n = (*n)->next; + __aarp_expire(t); + } else + n = &((*n)->next); +} + +/* Handle the timer event */ +static void aarp_expire_timeout(unsigned long unused) +{ + int ct; + + write_lock_bh(&aarp_lock); + + for (ct = 0; ct < AARP_HASH_SIZE; ct++) { + __aarp_expire_timer(&resolved[ct]); + __aarp_kick(&unresolved[ct]); + __aarp_expire_timer(&unresolved[ct]); + __aarp_expire_timer(&proxies[ct]); + } + + write_unlock_bh(&aarp_lock); + mod_timer(&aarp_timer, jiffies + + (unresolved_count ? sysctl_aarp_tick_time : + sysctl_aarp_expiry_time)); +} + +/* Network device notifier chain handler. */ +static int aarp_device_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + struct net_device *dev = ptr; + int ct; + + if (!net_eq(dev_net(dev), &init_net)) + return NOTIFY_DONE; + + if (event == NETDEV_DOWN) { + write_lock_bh(&aarp_lock); + + for (ct = 0; ct < AARP_HASH_SIZE; ct++) { + __aarp_expire_device(&resolved[ct], dev); + __aarp_expire_device(&unresolved[ct], dev); + __aarp_expire_device(&proxies[ct], dev); + } + + write_unlock_bh(&aarp_lock); + } + return NOTIFY_DONE; +} + +/* Expire all entries in a hash chain */ +static void __aarp_expire_all(struct aarp_entry **n) +{ + struct aarp_entry *t; + + while (*n) { + t = *n; + *n = (*n)->next; + __aarp_expire(t); + } +} + +/* Cleanup all hash chains -- module unloading */ +static void aarp_purge(void) +{ + int ct; + + write_lock_bh(&aarp_lock); + for (ct = 0; ct < AARP_HASH_SIZE; ct++) { + __aarp_expire_all(&resolved[ct]); + __aarp_expire_all(&unresolved[ct]); + __aarp_expire_all(&proxies[ct]); + } + write_unlock_bh(&aarp_lock); +} + +/* + * Create a new aarp entry. This must use GFP_ATOMIC because it + * runs while holding spinlocks. + */ +static struct aarp_entry *aarp_alloc(void) +{ + struct aarp_entry *a = kmalloc(sizeof(*a), GFP_ATOMIC); + + if (a) + skb_queue_head_init(&a->packet_queue); + return a; +} + +/* + * Find an entry. We might return an expired but not yet purged entry. We + * don't care as it will do no harm. + * + * This must run under the aarp_lock. + */ +static struct aarp_entry *__aarp_find_entry(struct aarp_entry *list, + struct net_device *dev, + struct atalk_addr *sat) +{ + while (list) { + if (list->target_addr.s_net == sat->s_net && + list->target_addr.s_node == sat->s_node && + list->dev == dev) + break; + list = list->next; + } + + return list; +} + +/* Called from the DDP code, and thus must be exported. */ +void aarp_proxy_remove(struct net_device *dev, struct atalk_addr *sa) +{ + int hash = sa->s_node % (AARP_HASH_SIZE - 1); + struct aarp_entry *a; + + write_lock_bh(&aarp_lock); + + a = __aarp_find_entry(proxies[hash], dev, sa); + if (a) + a->expires_at = jiffies - 1; + + write_unlock_bh(&aarp_lock); +} + +/* This must run under aarp_lock. */ +static struct atalk_addr *__aarp_proxy_find(struct net_device *dev, + struct atalk_addr *sa) +{ + int hash = sa->s_node % (AARP_HASH_SIZE - 1); + struct aarp_entry *a = __aarp_find_entry(proxies[hash], dev, sa); + + return a ? sa : NULL; +} + +/* + * Probe a Phase 1 device or a device that requires its Net:Node to + * be set via an ioctl. + */ +static void aarp_send_probe_phase1(struct atalk_iface *iface) +{ + struct ifreq atreq; + struct sockaddr_at *sa = (struct sockaddr_at *)&atreq.ifr_addr; + const struct net_device_ops *ops = iface->dev->netdev_ops; + + sa->sat_addr.s_node = iface->address.s_node; + sa->sat_addr.s_net = ntohs(iface->address.s_net); + + /* We pass the Net:Node to the drivers/cards by a Device ioctl. */ + if (!(ops->ndo_do_ioctl(iface->dev, &atreq, SIOCSIFADDR))) { + ops->ndo_do_ioctl(iface->dev, &atreq, SIOCGIFADDR); + if (iface->address.s_net != htons(sa->sat_addr.s_net) || + iface->address.s_node != sa->sat_addr.s_node) + iface->status |= ATIF_PROBE_FAIL; + + iface->address.s_net = htons(sa->sat_addr.s_net); + iface->address.s_node = sa->sat_addr.s_node; + } +} + + +void aarp_probe_network(struct atalk_iface *atif) +{ + if (atif->dev->type == ARPHRD_LOCALTLK || + atif->dev->type == ARPHRD_PPP) + aarp_send_probe_phase1(atif); + else { + unsigned int count; + + for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) { + aarp_send_probe(atif->dev, &atif->address); + + /* Defer 1/10th */ + msleep(100); + + if (atif->status & ATIF_PROBE_FAIL) + break; + } + } +} + +int aarp_proxy_probe_network(struct atalk_iface *atif, struct atalk_addr *sa) +{ + int hash, retval = -EPROTONOSUPPORT; + struct aarp_entry *entry; + unsigned int count; + + /* + * we don't currently support LocalTalk or PPP for proxy AARP; + * if someone wants to try and add it, have fun + */ + if (atif->dev->type == ARPHRD_LOCALTLK || + atif->dev->type == ARPHRD_PPP) + goto out; + + /* + * create a new AARP entry with the flags set to be published -- + * we need this one to hang around even if it's in use + */ + entry = aarp_alloc(); + retval = -ENOMEM; + if (!entry) + goto out; + + entry->expires_at = -1; + entry->status = ATIF_PROBE; + entry->target_addr.s_node = sa->s_node; + entry->target_addr.s_net = sa->s_net; + entry->dev = atif->dev; + + write_lock_bh(&aarp_lock); + + hash = sa->s_node % (AARP_HASH_SIZE - 1); + entry->next = proxies[hash]; + proxies[hash] = entry; + + for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) { + aarp_send_probe(atif->dev, sa); + + /* Defer 1/10th */ + write_unlock_bh(&aarp_lock); + msleep(100); + write_lock_bh(&aarp_lock); + + if (entry->status & ATIF_PROBE_FAIL) + break; + } + + if (entry->status & ATIF_PROBE_FAIL) { + entry->expires_at = jiffies - 1; /* free the entry */ + retval = -EADDRINUSE; /* return network full */ + } else { /* clear the probing flag */ + entry->status &= ~ATIF_PROBE; + retval = 1; + } + + write_unlock_bh(&aarp_lock); +out: + return retval; +} + +/* Send a DDP frame */ +int aarp_send_ddp(struct net_device *dev, struct sk_buff *skb, + struct atalk_addr *sa, void *hwaddr) +{ + static char ddp_eth_multicast[ETH_ALEN] = + { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; + int hash; + struct aarp_entry *a; + + skb_reset_network_header(skb); + + /* Check for LocalTalk first */ + if (dev->type == ARPHRD_LOCALTLK) { + struct atalk_addr *at = atalk_find_dev_addr(dev); + struct ddpehdr *ddp = (struct ddpehdr *)skb->data; + int ft = 2; + + /* + * Compressible ? + * + * IFF: src_net == dest_net == device_net + * (zero matches anything) + */ + + if ((!ddp->deh_snet || at->s_net == ddp->deh_snet) && + (!ddp->deh_dnet || at->s_net == ddp->deh_dnet)) { + skb_pull(skb, sizeof(*ddp) - 4); + + /* + * The upper two remaining bytes are the port + * numbers we just happen to need. Now put the + * length in the lower two. + */ + *((__be16 *)skb->data) = htons(skb->len); + ft = 1; + } + /* + * Nice and easy. No AARP type protocols occur here so we can + * just shovel it out with a 3 byte LLAP header + */ + + skb_push(skb, 3); + skb->data[0] = sa->s_node; + skb->data[1] = at->s_node; + skb->data[2] = ft; + skb->dev = dev; + goto sendit; + } + + /* On a PPP link we neither compress nor aarp. */ + if (dev->type == ARPHRD_PPP) { + skb->protocol = htons(ETH_P_PPPTALK); + skb->dev = dev; + goto sendit; + } + + /* Non ELAP we cannot do. */ + if (dev->type != ARPHRD_ETHER) + goto free_it; + + skb->dev = dev; + skb->protocol = htons(ETH_P_ATALK); + hash = sa->s_node % (AARP_HASH_SIZE - 1); + + /* Do we have a resolved entry? */ + if (sa->s_node == ATADDR_BCAST) { + /* Send it */ + ddp_dl->request(ddp_dl, skb, ddp_eth_multicast); + goto sent; + } + + write_lock_bh(&aarp_lock); + a = __aarp_find_entry(resolved[hash], dev, sa); + + if (a) { /* Return 1 and fill in the address */ + a->expires_at = jiffies + (sysctl_aarp_expiry_time * 10); + ddp_dl->request(ddp_dl, skb, a->hwaddr); + write_unlock_bh(&aarp_lock); + goto sent; + } + + /* Do we have an unresolved entry: This is the less common path */ + a = __aarp_find_entry(unresolved[hash], dev, sa); + if (a) { /* Queue onto the unresolved queue */ + skb_queue_tail(&a->packet_queue, skb); + goto out_unlock; + } + + /* Allocate a new entry */ + a = aarp_alloc(); + if (!a) { + /* Whoops slipped... good job it's an unreliable protocol 8) */ + write_unlock_bh(&aarp_lock); + goto free_it; + } + + /* Set up the queue */ + skb_queue_tail(&a->packet_queue, skb); + a->expires_at = jiffies + sysctl_aarp_resolve_time; + a->dev = dev; + a->next = unresolved[hash]; + a->target_addr = *sa; + a->xmit_count = 0; + unresolved[hash] = a; + unresolved_count++; + + /* Send an initial request for the address */ + __aarp_send_query(a); + + /* + * Switch to fast timer if needed (That is if this is the first + * unresolved entry to get added) + */ + + if (unresolved_count == 1) + mod_timer(&aarp_timer, jiffies + sysctl_aarp_tick_time); + + /* Now finally, it is safe to drop the lock. */ +out_unlock: + write_unlock_bh(&aarp_lock); + + /* Tell the ddp layer we have taken over for this frame. */ + goto sent; + +sendit: + if (skb->sk) + skb->priority = skb->sk->sk_priority; + if (dev_queue_xmit(skb)) + goto drop; +sent: + return NET_XMIT_SUCCESS; +free_it: + kfree_skb(skb); +drop: + return NET_XMIT_DROP; +} +EXPORT_SYMBOL(aarp_send_ddp); + +/* + * An entry in the aarp unresolved queue has become resolved. Send + * all the frames queued under it. + * + * Must run under aarp_lock. + */ +static void __aarp_resolved(struct aarp_entry **list, struct aarp_entry *a, + int hash) +{ + struct sk_buff *skb; + + while (*list) + if (*list == a) { + unresolved_count--; + *list = a->next; + + /* Move into the resolved list */ + a->next = resolved[hash]; + resolved[hash] = a; + + /* Kick frames off */ + while ((skb = skb_dequeue(&a->packet_queue)) != NULL) { + a->expires_at = jiffies + + sysctl_aarp_expiry_time * 10; + ddp_dl->request(ddp_dl, skb, a->hwaddr); + } + } else + list = &((*list)->next); +} + +/* + * This is called by the SNAP driver whenever we see an AARP SNAP + * frame. We currently only support Ethernet. + */ +static int aarp_rcv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *pt, struct net_device *orig_dev) +{ + struct elapaarp *ea = aarp_hdr(skb); + int hash, ret = 0; + __u16 function; + struct aarp_entry *a; + struct atalk_addr sa, *ma, da; + struct atalk_iface *ifa; + + if (!net_eq(dev_net(dev), &init_net)) + goto out0; + + /* We only do Ethernet SNAP AARP. */ + if (dev->type != ARPHRD_ETHER) + goto out0; + + /* Frame size ok? */ + if (!skb_pull(skb, sizeof(*ea))) + goto out0; + + function = ntohs(ea->function); + + /* Sanity check fields. */ + if (function < AARP_REQUEST || function > AARP_PROBE || + ea->hw_len != ETH_ALEN || ea->pa_len != AARP_PA_ALEN || + ea->pa_src_zero || ea->pa_dst_zero) + goto out0; + + /* Looks good. */ + hash = ea->pa_src_node % (AARP_HASH_SIZE - 1); + + /* Build an address. */ + sa.s_node = ea->pa_src_node; + sa.s_net = ea->pa_src_net; + + /* Process the packet. Check for replies of me. */ + ifa = atalk_find_dev(dev); + if (!ifa) + goto out1; + + if (ifa->status & ATIF_PROBE && + ifa->address.s_node == ea->pa_dst_node && + ifa->address.s_net == ea->pa_dst_net) { + ifa->status |= ATIF_PROBE_FAIL; /* Fail the probe (in use) */ + goto out1; + } + + /* Check for replies of proxy AARP entries */ + da.s_node = ea->pa_dst_node; + da.s_net = ea->pa_dst_net; + + write_lock_bh(&aarp_lock); + a = __aarp_find_entry(proxies[hash], dev, &da); + + if (a && a->status & ATIF_PROBE) { + a->status |= ATIF_PROBE_FAIL; + /* + * we do not respond to probe or request packets for + * this address while we are probing this address + */ + goto unlock; + } + + switch (function) { + case AARP_REPLY: + if (!unresolved_count) /* Speed up */ + break; + + /* Find the entry. */ + a = __aarp_find_entry(unresolved[hash], dev, &sa); + if (!a || dev != a->dev) + break; + + /* We can fill one in - this is good. */ + memcpy(a->hwaddr, ea->hw_src, ETH_ALEN); + __aarp_resolved(&unresolved[hash], a, hash); + if (!unresolved_count) + mod_timer(&aarp_timer, + jiffies + sysctl_aarp_expiry_time); + break; + + case AARP_REQUEST: + case AARP_PROBE: + + /* + * If it is my address set ma to my address and reply. + * We can treat probe and request the same. Probe + * simply means we shouldn't cache the querying host, + * as in a probe they are proposing an address not + * using one. + * + * Support for proxy-AARP added. We check if the + * address is one of our proxies before we toss the + * packet out. + */ + + sa.s_node = ea->pa_dst_node; + sa.s_net = ea->pa_dst_net; + + /* See if we have a matching proxy. */ + ma = __aarp_proxy_find(dev, &sa); + if (!ma) + ma = &ifa->address; + else { /* We need to make a copy of the entry. */ + da.s_node = sa.s_node; + da.s_net = sa.s_net; + ma = &da; + } + + if (function == AARP_PROBE) { + /* + * A probe implies someone trying to get an + * address. So as a precaution flush any + * entries we have for this address. + */ + a = __aarp_find_entry(resolved[sa.s_node % + (AARP_HASH_SIZE - 1)], + skb->dev, &sa); + + /* + * Make it expire next tick - that avoids us + * getting into a probe/flush/learn/probe/ + * flush/learn cycle during probing of a slow + * to respond host addr. + */ + if (a) { + a->expires_at = jiffies - 1; + mod_timer(&aarp_timer, jiffies + + sysctl_aarp_tick_time); + } + } + + if (sa.s_node != ma->s_node) + break; + + if (sa.s_net && ma->s_net && sa.s_net != ma->s_net) + break; + + sa.s_node = ea->pa_src_node; + sa.s_net = ea->pa_src_net; + + /* aarp_my_address has found the address to use for us. + */ + aarp_send_reply(dev, ma, &sa, ea->hw_src); + break; + } + +unlock: + write_unlock_bh(&aarp_lock); +out1: + ret = 1; +out0: + kfree_skb(skb); + return ret; +} + +static struct notifier_block aarp_notifier = { + .notifier_call = aarp_device_event, +}; + +static unsigned char aarp_snap_id[] = { 0x00, 0x00, 0x00, 0x80, 0xF3 }; + +void __init aarp_proto_init(void) +{ + aarp_dl = register_snap_client(aarp_snap_id, aarp_rcv); + if (!aarp_dl) + printk(KERN_CRIT "Unable to register AARP with SNAP.\n"); + setup_timer(&aarp_timer, aarp_expire_timeout, 0); + aarp_timer.expires = jiffies + sysctl_aarp_expiry_time; + add_timer(&aarp_timer); + register_netdevice_notifier(&aarp_notifier); +} + +/* Remove the AARP entries associated with a device. */ +void aarp_device_down(struct net_device *dev) +{ + int ct; + + write_lock_bh(&aarp_lock); + + for (ct = 0; ct < AARP_HASH_SIZE; ct++) { + __aarp_expire_device(&resolved[ct], dev); + __aarp_expire_device(&unresolved[ct], dev); + __aarp_expire_device(&proxies[ct], dev); + } + + write_unlock_bh(&aarp_lock); +} + +#ifdef CONFIG_PROC_FS +struct aarp_iter_state { + int bucket; + struct aarp_entry **table; +}; + +/* + * Get the aarp entry that is in the chain described + * by the iterator. + * If pos is set then skip till that index. + * pos = 1 is the first entry + */ +static struct aarp_entry *iter_next(struct aarp_iter_state *iter, loff_t *pos) +{ + int ct = iter->bucket; + struct aarp_entry **table = iter->table; + loff_t off = 0; + struct aarp_entry *entry; + + rescan: + while(ct < AARP_HASH_SIZE) { + for (entry = table[ct]; entry; entry = entry->next) { + if (!pos || ++off == *pos) { + iter->table = table; + iter->bucket = ct; + return entry; + } + } + ++ct; + } + + if (table == resolved) { + ct = 0; + table = unresolved; + goto rescan; + } + if (table == unresolved) { + ct = 0; + table = proxies; + goto rescan; + } + return NULL; +} + +static void *aarp_seq_start(struct seq_file *seq, loff_t *pos) + __acquires(aarp_lock) +{ + struct aarp_iter_state *iter = seq->private; + + read_lock_bh(&aarp_lock); + iter->table = resolved; + iter->bucket = 0; + + return *pos ? iter_next(iter, pos) : SEQ_START_TOKEN; +} + +static void *aarp_seq_next(struct seq_file *seq, void *v, loff_t *pos) +{ + struct aarp_entry *entry = v; + struct aarp_iter_state *iter = seq->private; + + ++*pos; + + /* first line after header */ + if (v == SEQ_START_TOKEN) + entry = iter_next(iter, NULL); + + /* next entry in current bucket */ + else if (entry->next) + entry = entry->next; + + /* next bucket or table */ + else { + ++iter->bucket; + entry = iter_next(iter, NULL); + } + return entry; +} + +static void aarp_seq_stop(struct seq_file *seq, void *v) + __releases(aarp_lock) +{ + read_unlock_bh(&aarp_lock); +} + +static const char *dt2str(unsigned long ticks) +{ + static char buf[32]; + + sprintf(buf, "%ld.%02ld", ticks / HZ, ((ticks % HZ) * 100 ) / HZ); + + return buf; +} + +static int aarp_seq_show(struct seq_file *seq, void *v) +{ + struct aarp_iter_state *iter = seq->private; + struct aarp_entry *entry = v; + unsigned long now = jiffies; + + if (v == SEQ_START_TOKEN) + seq_puts(seq, + "Address Interface Hardware Address" + " Expires LastSend Retry Status\n"); + else { + seq_printf(seq, "%04X:%02X %-12s", + ntohs(entry->target_addr.s_net), + (unsigned int) entry->target_addr.s_node, + entry->dev ? entry->dev->name : "????"); + seq_printf(seq, "%pM", entry->hwaddr); + seq_printf(seq, " %8s", + dt2str((long)entry->expires_at - (long)now)); + if (iter->table == unresolved) + seq_printf(seq, " %8s %6hu", + dt2str(now - entry->last_sent), + entry->xmit_count); + else + seq_puts(seq, " "); + seq_printf(seq, " %s\n", + (iter->table == resolved) ? "resolved" + : (iter->table == unresolved) ? "unresolved" + : (iter->table == proxies) ? "proxies" + : "unknown"); + } + return 0; +} + +static const struct seq_operations aarp_seq_ops = { + .start = aarp_seq_start, + .next = aarp_seq_next, + .stop = aarp_seq_stop, + .show = aarp_seq_show, +}; + +static int aarp_seq_open(struct inode *inode, struct file *file) +{ + return seq_open_private(file, &aarp_seq_ops, + sizeof(struct aarp_iter_state)); +} + +const struct file_operations atalk_seq_arp_fops = { + .owner = THIS_MODULE, + .open = aarp_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release_private, +}; +#endif + +/* General module cleanup. Called from cleanup_module() in ddp.c. */ +void aarp_cleanup_module(void) +{ + del_timer_sync(&aarp_timer); + unregister_netdevice_notifier(&aarp_notifier); + unregister_snap_client(aarp_dl); + aarp_purge(); +} diff --git a/drivers/staging/appletalk/atalk.h b/drivers/staging/appletalk/atalk.h new file mode 100644 index 000000000000..d34c187432ed --- /dev/null +++ b/drivers/staging/appletalk/atalk.h @@ -0,0 +1,208 @@ +#ifndef __LINUX_ATALK_H__ +#define __LINUX_ATALK_H__ + +#include +#include + +/* + * AppleTalk networking structures + * + * The following are directly referenced from the University Of Michigan + * netatalk for compatibility reasons. + */ +#define ATPORT_FIRST 1 +#define ATPORT_RESERVED 128 +#define ATPORT_LAST 254 /* 254 is only legal on localtalk */ +#define ATADDR_ANYNET (__u16)0 +#define ATADDR_ANYNODE (__u8)0 +#define ATADDR_ANYPORT (__u8)0 +#define ATADDR_BCAST (__u8)255 +#define DDP_MAXSZ 587 +#define DDP_MAXHOPS 15 /* 4 bits of hop counter */ + +#define SIOCATALKDIFADDR (SIOCPROTOPRIVATE + 0) + +struct atalk_addr { + __be16 s_net; + __u8 s_node; +}; + +struct sockaddr_at { + sa_family_t sat_family; + __u8 sat_port; + struct atalk_addr sat_addr; + char sat_zero[8]; +}; + +struct atalk_netrange { + __u8 nr_phase; + __be16 nr_firstnet; + __be16 nr_lastnet; +}; + +#ifdef __KERNEL__ + +#include + +struct atalk_route { + struct net_device *dev; + struct atalk_addr target; + struct atalk_addr gateway; + int flags; + struct atalk_route *next; +}; + +/** + * struct atalk_iface - AppleTalk Interface + * @dev - Network device associated with this interface + * @address - Our address + * @status - What are we doing? + * @nets - Associated direct netrange + * @next - next element in the list of interfaces + */ +struct atalk_iface { + struct net_device *dev; + struct atalk_addr address; + int status; +#define ATIF_PROBE 1 /* Probing for an address */ +#define ATIF_PROBE_FAIL 2 /* Probe collided */ + struct atalk_netrange nets; + struct atalk_iface *next; +}; + +struct atalk_sock { + /* struct sock has to be the first member of atalk_sock */ + struct sock sk; + __be16 dest_net; + __be16 src_net; + unsigned char dest_node; + unsigned char src_node; + unsigned char dest_port; + unsigned char src_port; +}; + +static inline struct atalk_sock *at_sk(struct sock *sk) +{ + return (struct atalk_sock *)sk; +} + +struct ddpehdr { + __be16 deh_len_hops; /* lower 10 bits are length, next 4 - hops */ + __be16 deh_sum; + __be16 deh_dnet; + __be16 deh_snet; + __u8 deh_dnode; + __u8 deh_snode; + __u8 deh_dport; + __u8 deh_sport; + /* And netatalk apps expect to stick the type in themselves */ +}; + +static __inline__ struct ddpehdr *ddp_hdr(struct sk_buff *skb) +{ + return (struct ddpehdr *)skb_transport_header(skb); +} + +/* AppleTalk AARP headers */ +struct elapaarp { + __be16 hw_type; +#define AARP_HW_TYPE_ETHERNET 1 +#define AARP_HW_TYPE_TOKENRING 2 + __be16 pa_type; + __u8 hw_len; + __u8 pa_len; +#define AARP_PA_ALEN 4 + __be16 function; +#define AARP_REQUEST 1 +#define AARP_REPLY 2 +#define AARP_PROBE 3 + __u8 hw_src[ETH_ALEN]; + __u8 pa_src_zero; + __be16 pa_src_net; + __u8 pa_src_node; + __u8 hw_dst[ETH_ALEN]; + __u8 pa_dst_zero; + __be16 pa_dst_net; + __u8 pa_dst_node; +} __attribute__ ((packed)); + +static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb) +{ + return (struct elapaarp *)skb_transport_header(skb); +} + +/* Not specified - how long till we drop a resolved entry */ +#define AARP_EXPIRY_TIME (5 * 60 * HZ) +/* Size of hash table */ +#define AARP_HASH_SIZE 16 +/* Fast retransmission timer when resolving */ +#define AARP_TICK_TIME (HZ / 5) +/* Send 10 requests then give up (2 seconds) */ +#define AARP_RETRANSMIT_LIMIT 10 +/* + * Some value bigger than total retransmit time + a bit for last reply to + * appear and to stop continual requests + */ +#define AARP_RESOLVE_TIME (10 * HZ) + +extern struct datalink_proto *ddp_dl, *aarp_dl; +extern void aarp_proto_init(void); + +/* Inter module exports */ + +/* Give a device find its atif control structure */ +static inline struct atalk_iface *atalk_find_dev(struct net_device *dev) +{ + return dev->atalk_ptr; +} + +extern struct atalk_addr *atalk_find_dev_addr(struct net_device *dev); +extern struct net_device *atrtr_get_dev(struct atalk_addr *sa); +extern int aarp_send_ddp(struct net_device *dev, + struct sk_buff *skb, + struct atalk_addr *sa, void *hwaddr); +extern void aarp_device_down(struct net_device *dev); +extern void aarp_probe_network(struct atalk_iface *atif); +extern int aarp_proxy_probe_network(struct atalk_iface *atif, + struct atalk_addr *sa); +extern void aarp_proxy_remove(struct net_device *dev, + struct atalk_addr *sa); + +extern void aarp_cleanup_module(void); + +extern struct hlist_head atalk_sockets; +extern rwlock_t atalk_sockets_lock; + +extern struct atalk_route *atalk_routes; +extern rwlock_t atalk_routes_lock; + +extern struct atalk_iface *atalk_interfaces; +extern rwlock_t atalk_interfaces_lock; + +extern struct atalk_route atrtr_default; + +extern const struct file_operations atalk_seq_arp_fops; + +extern int sysctl_aarp_expiry_time; +extern int sysctl_aarp_tick_time; +extern int sysctl_aarp_retransmit_limit; +extern int sysctl_aarp_resolve_time; + +#ifdef CONFIG_SYSCTL +extern void atalk_register_sysctl(void); +extern void atalk_unregister_sysctl(void); +#else +#define atalk_register_sysctl() do { } while(0) +#define atalk_unregister_sysctl() do { } while(0) +#endif + +#ifdef CONFIG_PROC_FS +extern int atalk_proc_init(void); +extern void atalk_proc_exit(void); +#else +#define atalk_proc_init() ({ 0; }) +#define atalk_proc_exit() do { } while(0) +#endif /* CONFIG_PROC_FS */ + +#endif /* __KERNEL__ */ +#endif /* __LINUX_ATALK_H__ */ diff --git a/drivers/staging/appletalk/atalk_proc.c b/drivers/staging/appletalk/atalk_proc.c new file mode 100644 index 000000000000..d012ba2e67d1 --- /dev/null +++ b/drivers/staging/appletalk/atalk_proc.c @@ -0,0 +1,301 @@ +/* + * atalk_proc.c - proc support for Appletalk + * + * Copyright(c) Arnaldo Carvalho de Melo + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation, version 2. + */ + +#include +#include +#include +#include +#include +#include "atalk.h" + + +static __inline__ struct atalk_iface *atalk_get_interface_idx(loff_t pos) +{ + struct atalk_iface *i; + + for (i = atalk_interfaces; pos && i; i = i->next) + --pos; + + return i; +} + +static void *atalk_seq_interface_start(struct seq_file *seq, loff_t *pos) + __acquires(atalk_interfaces_lock) +{ + loff_t l = *pos; + + read_lock_bh(&atalk_interfaces_lock); + return l ? atalk_get_interface_idx(--l) : SEQ_START_TOKEN; +} + +static void *atalk_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) +{ + struct atalk_iface *i; + + ++*pos; + if (v == SEQ_START_TOKEN) { + i = NULL; + if (atalk_interfaces) + i = atalk_interfaces; + goto out; + } + i = v; + i = i->next; +out: + return i; +} + +static void atalk_seq_interface_stop(struct seq_file *seq, void *v) + __releases(atalk_interfaces_lock) +{ + read_unlock_bh(&atalk_interfaces_lock); +} + +static int atalk_seq_interface_show(struct seq_file *seq, void *v) +{ + struct atalk_iface *iface; + + if (v == SEQ_START_TOKEN) { + seq_puts(seq, "Interface Address Networks " + "Status\n"); + goto out; + } + + iface = v; + seq_printf(seq, "%-16s %04X:%02X %04X-%04X %d\n", + iface->dev->name, ntohs(iface->address.s_net), + iface->address.s_node, ntohs(iface->nets.nr_firstnet), + ntohs(iface->nets.nr_lastnet), iface->status); +out: + return 0; +} + +static __inline__ struct atalk_route *atalk_get_route_idx(loff_t pos) +{ + struct atalk_route *r; + + for (r = atalk_routes; pos && r; r = r->next) + --pos; + + return r; +} + +static void *atalk_seq_route_start(struct seq_file *seq, loff_t *pos) + __acquires(atalk_routes_lock) +{ + loff_t l = *pos; + + read_lock_bh(&atalk_routes_lock); + return l ? atalk_get_route_idx(--l) : SEQ_START_TOKEN; +} + +static void *atalk_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) +{ + struct atalk_route *r; + + ++*pos; + if (v == SEQ_START_TOKEN) { + r = NULL; + if (atalk_routes) + r = atalk_routes; + goto out; + } + r = v; + r = r->next; +out: + return r; +} + +static void atalk_seq_route_stop(struct seq_file *seq, void *v) + __releases(atalk_routes_lock) +{ + read_unlock_bh(&atalk_routes_lock); +} + +static int atalk_seq_route_show(struct seq_file *seq, void *v) +{ + struct atalk_route *rt; + + if (v == SEQ_START_TOKEN) { + seq_puts(seq, "Target Router Flags Dev\n"); + goto out; + } + + if (atrtr_default.dev) { + rt = &atrtr_default; + seq_printf(seq, "Default %04X:%02X %-4d %s\n", + ntohs(rt->gateway.s_net), rt->gateway.s_node, + rt->flags, rt->dev->name); + } + + rt = v; + seq_printf(seq, "%04X:%02X %04X:%02X %-4d %s\n", + ntohs(rt->target.s_net), rt->target.s_node, + ntohs(rt->gateway.s_net), rt->gateway.s_node, + rt->flags, rt->dev->name); +out: + return 0; +} + +static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos) + __acquires(atalk_sockets_lock) +{ + read_lock_bh(&atalk_sockets_lock); + return seq_hlist_start_head(&atalk_sockets, *pos); +} + +static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) +{ + return seq_hlist_next(v, &atalk_sockets, pos); +} + +static void atalk_seq_socket_stop(struct seq_file *seq, void *v) + __releases(atalk_sockets_lock) +{ + read_unlock_bh(&atalk_sockets_lock); +} + +static int atalk_seq_socket_show(struct seq_file *seq, void *v) +{ + struct sock *s; + struct atalk_sock *at; + + if (v == SEQ_START_TOKEN) { + seq_printf(seq, "Type Local_addr Remote_addr Tx_queue " + "Rx_queue St UID\n"); + goto out; + } + + s = sk_entry(v); + at = at_sk(s); + + seq_printf(seq, "%02X %04X:%02X:%02X %04X:%02X:%02X %08X:%08X " + "%02X %d\n", + s->sk_type, ntohs(at->src_net), at->src_node, at->src_port, + ntohs(at->dest_net), at->dest_node, at->dest_port, + sk_wmem_alloc_get(s), + sk_rmem_alloc_get(s), + s->sk_state, SOCK_INODE(s->sk_socket)->i_uid); +out: + return 0; +} + +static const struct seq_operations atalk_seq_interface_ops = { + .start = atalk_seq_interface_start, + .next = atalk_seq_interface_next, + .stop = atalk_seq_interface_stop, + .show = atalk_seq_interface_show, +}; + +static const struct seq_operations atalk_seq_route_ops = { + .start = atalk_seq_route_start, + .next = atalk_seq_route_next, + .stop = atalk_seq_route_stop, + .show = atalk_seq_route_show, +}; + +static const struct seq_operations atalk_seq_socket_ops = { + .start = atalk_seq_socket_start, + .next = atalk_seq_socket_next, + .stop = atalk_seq_socket_stop, + .show = atalk_seq_socket_show, +}; + +static int atalk_seq_interface_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &atalk_seq_interface_ops); +} + +static int atalk_seq_route_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &atalk_seq_route_ops); +} + +static int atalk_seq_socket_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &atalk_seq_socket_ops); +} + +static const struct file_operations atalk_seq_interface_fops = { + .owner = THIS_MODULE, + .open = atalk_seq_interface_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static const struct file_operations atalk_seq_route_fops = { + .owner = THIS_MODULE, + .open = atalk_seq_route_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static const struct file_operations atalk_seq_socket_fops = { + .owner = THIS_MODULE, + .open = atalk_seq_socket_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static struct proc_dir_entry *atalk_proc_dir; + +int __init atalk_proc_init(void) +{ + struct proc_dir_entry *p; + int rc = -ENOMEM; + + atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net); + if (!atalk_proc_dir) + goto out; + + p = proc_create("interface", S_IRUGO, atalk_proc_dir, + &atalk_seq_interface_fops); + if (!p) + goto out_interface; + + p = proc_create("route", S_IRUGO, atalk_proc_dir, + &atalk_seq_route_fops); + if (!p) + goto out_route; + + p = proc_create("socket", S_IRUGO, atalk_proc_dir, + &atalk_seq_socket_fops); + if (!p) + goto out_socket; + + p = proc_create("arp", S_IRUGO, atalk_proc_dir, &atalk_seq_arp_fops); + if (!p) + goto out_arp; + + rc = 0; +out: + return rc; +out_arp: + remove_proc_entry("socket", atalk_proc_dir); +out_socket: + remove_proc_entry("route", atalk_proc_dir); +out_route: + remove_proc_entry("interface", atalk_proc_dir); +out_interface: + remove_proc_entry("atalk", init_net.proc_net); + goto out; +} + +void __exit atalk_proc_exit(void) +{ + remove_proc_entry("interface", atalk_proc_dir); + remove_proc_entry("route", atalk_proc_dir); + remove_proc_entry("socket", atalk_proc_dir); + remove_proc_entry("arp", atalk_proc_dir); + remove_proc_entry("atalk", init_net.proc_net); +} diff --git a/drivers/staging/appletalk/cops.c b/drivers/staging/appletalk/cops.c new file mode 100644 index 000000000000..661d42eff7d8 --- /dev/null +++ b/drivers/staging/appletalk/cops.c @@ -0,0 +1,1013 @@ +/* cops.c: LocalTalk driver for Linux. + * + * Authors: + * - Jay Schulist + * + * With more than a little help from; + * - Alan Cox + * + * Derived from: + * - skeleton.c: A network driver outline for linux. + * Written 1993-94 by Donald Becker. + * - ltpc.c: A driver for the LocalTalk PC card. + * Written by Bradford W. Johnson. + * + * Copyright 1993 United States Government as represented by the + * Director, National Security Agency. + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + * Changes: + * 19970608 Alan Cox Allowed dual card type support + * Can set board type in insmod + * Hooks for cops_setup routine + * (not yet implemented). + * 19971101 Jay Schulist Fixes for multiple lt* devices. + * 19980607 Steven Hirsch Fixed the badly broken support + * for Tangent type cards. Only + * tested on Daystar LT200. Some + * cleanup of formatting and program + * logic. Added emacs 'local-vars' + * setup for Jay's brace style. + * 20000211 Alan Cox Cleaned up for softnet + */ + +static const char *version = +"cops.c:v0.04 6/7/98 Jay Schulist \n"; +/* + * Sources: + * COPS Localtalk SDK. This provides almost all of the information + * needed. + */ + +/* + * insmod/modprobe configurable stuff. + * - IO Port, choose one your card supports or 0 if you dare. + * - IRQ, also choose one your card supports or nothing and let + * the driver figure it out. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include /* For udelay() */ +#include +#include +#include + +#include +#include +#include + +#include "atalk.h" +#include "cops.h" /* Our Stuff */ +#include "cops_ltdrv.h" /* Firmware code for Tangent type cards. */ +#include "cops_ffdrv.h" /* Firmware code for Dayna type cards. */ + +/* + * The name of the card. Is used for messages and in the requests for + * io regions, irqs and dma channels + */ + +static const char *cardname = "cops"; + +#ifdef CONFIG_COPS_DAYNA +static int board_type = DAYNA; /* Module exported */ +#else +static int board_type = TANGENT; +#endif + +static int io = 0x240; /* Default IO for Dayna */ +static int irq = 5; /* Default IRQ */ + +/* + * COPS Autoprobe information. + * Right now if port address is right but IRQ is not 5 this will + * return a 5 no matter what since we will still get a status response. + * Need one more additional check to narrow down after we have gotten + * the ioaddr. But since only other possible IRQs is 3 and 4 so no real + * hurry on this. I *STRONGLY* recommend using IRQ 5 for your card with + * this driver. + * + * This driver has 2 modes and they are: Dayna mode and Tangent mode. + * Each mode corresponds with the type of card. It has been found + * that there are 2 main types of cards and all other cards are + * the same and just have different names or only have minor differences + * such as more IO ports. As this driver is tested it will + * become more clear on exactly what cards are supported. The driver + * defaults to using Dayna mode. To change the drivers mode, simply + * select Dayna or Tangent mode when configuring the kernel. + * + * This driver should support: + * TANGENT driver mode: + * Tangent ATB-II, Novell NL-1000, Daystar Digital LT-200, + * COPS LT-1 + * DAYNA driver mode: + * Dayna DL2000/DaynaTalk PC (Half Length), COPS LT-95, + * Farallon PhoneNET PC III, Farallon PhoneNET PC II + * Other cards possibly supported mode unknown though: + * Dayna DL2000 (Full length), COPS LT/M (Micro-Channel) + * + * Cards NOT supported by this driver but supported by the ltpc.c + * driver written by Bradford W. Johnson + * Farallon PhoneNET PC + * Original Apple LocalTalk PC card + * + * N.B. + * + * The Daystar Digital LT200 boards do not support interrupt-driven + * IO. You must specify 'irq=0xff' as a module parameter to invoke + * polled mode. I also believe that the port probing logic is quite + * dangerous at best and certainly hopeless for a polled card. Best to + * specify both. - Steve H. + * + */ + +/* + * Zero terminated list of IO ports to probe. + */ + +static unsigned int ports[] = { + 0x240, 0x340, 0x200, 0x210, 0x220, 0x230, 0x260, + 0x2A0, 0x300, 0x310, 0x320, 0x330, 0x350, 0x360, + 0 +}; + +/* + * Zero terminated list of IRQ ports to probe. + */ + +static int cops_irqlist[] = { + 5, 4, 3, 0 +}; + +static struct timer_list cops_timer; + +/* use 0 for production, 1 for verification, 2 for debug, 3 for verbose debug */ +#ifndef COPS_DEBUG +#define COPS_DEBUG 1 +#endif +static unsigned int cops_debug = COPS_DEBUG; + +/* The number of low I/O ports used by the card. */ +#define COPS_IO_EXTENT 8 + +/* Information that needs to be kept for each board. */ + +struct cops_local +{ + int board; /* Holds what board type is. */ + int nodeid; /* Set to 1 once have nodeid. */ + unsigned char node_acquire; /* Node ID when acquired. */ + struct atalk_addr node_addr; /* Full node address */ + spinlock_t lock; /* RX/TX lock */ +}; + +/* Index to functions, as function prototypes. */ +static int cops_probe1 (struct net_device *dev, int ioaddr); +static int cops_irq (int ioaddr, int board); + +static int cops_open (struct net_device *dev); +static int cops_jumpstart (struct net_device *dev); +static void cops_reset (struct net_device *dev, int sleep); +static void cops_load (struct net_device *dev); +static int cops_nodeid (struct net_device *dev, int nodeid); + +static irqreturn_t cops_interrupt (int irq, void *dev_id); +static void cops_poll (unsigned long ltdev); +static void cops_timeout(struct net_device *dev); +static void cops_rx (struct net_device *dev); +static netdev_tx_t cops_send_packet (struct sk_buff *skb, + struct net_device *dev); +static void set_multicast_list (struct net_device *dev); +static int cops_ioctl (struct net_device *dev, struct ifreq *rq, int cmd); +static int cops_close (struct net_device *dev); + +static void cleanup_card(struct net_device *dev) +{ + if (dev->irq) + free_irq(dev->irq, dev); + release_region(dev->base_addr, COPS_IO_EXTENT); +} + +/* + * Check for a network adaptor of this type, and return '0' iff one exists. + * If dev->base_addr == 0, probe all likely locations. + * If dev->base_addr in [1..0x1ff], always return failure. + * otherwise go with what we pass in. + */ +struct net_device * __init cops_probe(int unit) +{ + struct net_device *dev; + unsigned *port; + int base_addr; + int err = 0; + + dev = alloc_ltalkdev(sizeof(struct cops_local)); + if (!dev) + return ERR_PTR(-ENOMEM); + + if (unit >= 0) { + sprintf(dev->name, "lt%d", unit); + netdev_boot_setup_check(dev); + irq = dev->irq; + base_addr = dev->base_addr; + } else { + base_addr = dev->base_addr = io; + } + + if (base_addr > 0x1ff) { /* Check a single specified location. */ + err = cops_probe1(dev, base_addr); + } else if (base_addr != 0) { /* Don't probe at all. */ + err = -ENXIO; + } else { + /* FIXME Does this really work for cards which generate irq? + * It's definitely N.G. for polled Tangent. sh + * Dayna cards don't autoprobe well at all, but if your card is + * at IRQ 5 & IO 0x240 we find it every time. ;) JS + */ + for (port = ports; *port && cops_probe1(dev, *port) < 0; port++) + ; + if (!*port) + err = -ENODEV; + } + if (err) + goto out; + err = register_netdev(dev); + if (err) + goto out1; + return dev; +out1: + cleanup_card(dev); +out: + free_netdev(dev); + return ERR_PTR(err); +} + +static const struct net_device_ops cops_netdev_ops = { + .ndo_open = cops_open, + .ndo_stop = cops_close, + .ndo_start_xmit = cops_send_packet, + .ndo_tx_timeout = cops_timeout, + .ndo_do_ioctl = cops_ioctl, + .ndo_set_multicast_list = set_multicast_list, +}; + +/* + * This is the real probe routine. Linux has a history of friendly device + * probes on the ISA bus. A good device probes avoids doing writes, and + * verifies that the correct device exists and functions. + */ +static int __init cops_probe1(struct net_device *dev, int ioaddr) +{ + struct cops_local *lp; + static unsigned version_printed; + int board = board_type; + int retval; + + if(cops_debug && version_printed++ == 0) + printk("%s", version); + + /* Grab the region so no one else tries to probe our ioports. */ + if (!request_region(ioaddr, COPS_IO_EXTENT, dev->name)) + return -EBUSY; + + /* + * Since this board has jumpered interrupts, allocate the interrupt + * vector now. There is no point in waiting since no other device + * can use the interrupt, and this marks the irq as busy. Jumpered + * interrupts are typically not reported by the boards, and we must + * used AutoIRQ to find them. + */ + dev->irq = irq; + switch (dev->irq) + { + case 0: + /* COPS AutoIRQ routine */ + dev->irq = cops_irq(ioaddr, board); + if (dev->irq) + break; + /* No IRQ found on this port, fallthrough */ + case 1: + retval = -EINVAL; + goto err_out; + + /* Fixup for users that don't know that IRQ 2 is really + * IRQ 9, or don't know which one to set. + */ + case 2: + dev->irq = 9; + break; + + /* Polled operation requested. Although irq of zero passed as + * a parameter tells the init routines to probe, we'll + * overload it to denote polled operation at runtime. + */ + case 0xff: + dev->irq = 0; + break; + + default: + break; + } + + /* Reserve any actual interrupt. */ + if (dev->irq) { + retval = request_irq(dev->irq, cops_interrupt, 0, dev->name, dev); + if (retval) + goto err_out; + } + + dev->base_addr = ioaddr; + + lp = netdev_priv(dev); + spin_lock_init(&lp->lock); + + /* Copy local board variable to lp struct. */ + lp->board = board; + + dev->netdev_ops = &cops_netdev_ops; + dev->watchdog_timeo = HZ * 2; + + + /* Tell the user where the card is and what mode we're in. */ + if(board==DAYNA) + printk("%s: %s at %#3x, using IRQ %d, in Dayna mode.\n", + dev->name, cardname, ioaddr, dev->irq); + if(board==TANGENT) { + if(dev->irq) + printk("%s: %s at %#3x, IRQ %d, in Tangent mode\n", + dev->name, cardname, ioaddr, dev->irq); + else + printk("%s: %s at %#3x, using polled IO, in Tangent mode.\n", + dev->name, cardname, ioaddr); + + } + return 0; + +err_out: + release_region(ioaddr, COPS_IO_EXTENT); + return retval; +} + +static int __init cops_irq (int ioaddr, int board) +{ /* + * This does not use the IRQ to determine where the IRQ is. We just + * assume that when we get a correct status response that it's the IRQ. + * This really just verifies the IO port but since we only have access + * to such a small number of IRQs (5, 4, 3) this is not bad. + * This will probably not work for more than one card. + */ + int irqaddr=0; + int i, x, status; + + if(board==DAYNA) + { + outb(0, ioaddr+DAYNA_RESET); + inb(ioaddr+DAYNA_RESET); + mdelay(333); + } + if(board==TANGENT) + { + inb(ioaddr); + outb(0, ioaddr); + outb(0, ioaddr+TANG_RESET); + } + + for(i=0; cops_irqlist[i] !=0; i++) + { + irqaddr = cops_irqlist[i]; + for(x = 0xFFFF; x>0; x --) /* wait for response */ + { + if(board==DAYNA) + { + status = (inb(ioaddr+DAYNA_CARD_STATUS)&3); + if(status == 1) + return irqaddr; + } + if(board==TANGENT) + { + if((inb(ioaddr+TANG_CARD_STATUS)& TANG_TX_READY) !=0) + return irqaddr; + } + } + } + return 0; /* no IRQ found */ +} + +/* + * Open/initialize the board. This is called (in the current kernel) + * sometime after booting when the 'ifconfig' program is run. + */ +static int cops_open(struct net_device *dev) +{ + struct cops_local *lp = netdev_priv(dev); + + if(dev->irq==0) + { + /* + * I don't know if the Dayna-style boards support polled + * operation. For now, only allow it for Tangent. + */ + if(lp->board==TANGENT) /* Poll 20 times per second */ + { + init_timer(&cops_timer); + cops_timer.function = cops_poll; + cops_timer.data = (unsigned long)dev; + cops_timer.expires = jiffies + HZ/20; + add_timer(&cops_timer); + } + else + { + printk(KERN_WARNING "%s: No irq line set\n", dev->name); + return -EAGAIN; + } + } + + cops_jumpstart(dev); /* Start the card up. */ + + netif_start_queue(dev); + return 0; +} + +/* + * This allows for a dynamic start/restart of the entire card. + */ +static int cops_jumpstart(struct net_device *dev) +{ + struct cops_local *lp = netdev_priv(dev); + + /* + * Once the card has the firmware loaded and has acquired + * the nodeid, if it is reset it will lose it all. + */ + cops_reset(dev,1); /* Need to reset card before load firmware. */ + cops_load(dev); /* Load the firmware. */ + + /* + * If atalkd already gave us a nodeid we will use that + * one again, else we wait for atalkd to give us a nodeid + * in cops_ioctl. This may cause a problem if someone steals + * our nodeid while we are resetting. + */ + if(lp->nodeid == 1) + cops_nodeid(dev,lp->node_acquire); + + return 0; +} + +static void tangent_wait_reset(int ioaddr) +{ + int timeout=0; + + while(timeout++ < 5 && (inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0) + mdelay(1); /* Wait 1 second */ +} + +/* + * Reset the LocalTalk board. + */ +static void cops_reset(struct net_device *dev, int sleep) +{ + struct cops_local *lp = netdev_priv(dev); + int ioaddr=dev->base_addr; + + if(lp->board==TANGENT) + { + inb(ioaddr); /* Clear request latch. */ + outb(0,ioaddr); /* Clear the TANG_TX_READY flop. */ + outb(0, ioaddr+TANG_RESET); /* Reset the adapter. */ + + tangent_wait_reset(ioaddr); + outb(0, ioaddr+TANG_CLEAR_INT); + } + if(lp->board==DAYNA) + { + outb(0, ioaddr+DAYNA_RESET); /* Assert the reset port */ + inb(ioaddr+DAYNA_RESET); /* Clear the reset */ + if (sleep) + msleep(333); + else + mdelay(333); + } + + netif_wake_queue(dev); +} + +static void cops_load (struct net_device *dev) +{ + struct ifreq ifr; + struct ltfirmware *ltf= (struct ltfirmware *)&ifr.ifr_ifru; + struct cops_local *lp = netdev_priv(dev); + int ioaddr=dev->base_addr; + int length, i = 0; + + strcpy(ifr.ifr_name,"lt0"); + + /* Get card's firmware code and do some checks on it. */ +#ifdef CONFIG_COPS_DAYNA + if(lp->board==DAYNA) + { + ltf->length=sizeof(ffdrv_code); + ltf->data=ffdrv_code; + } + else +#endif +#ifdef CONFIG_COPS_TANGENT + if(lp->board==TANGENT) + { + ltf->length=sizeof(ltdrv_code); + ltf->data=ltdrv_code; + } + else +#endif + { + printk(KERN_INFO "%s; unsupported board type.\n", dev->name); + return; + } + + /* Check to make sure firmware is correct length. */ + if(lp->board==DAYNA && ltf->length!=5983) + { + printk(KERN_WARNING "%s: Firmware is not length of FFDRV.BIN.\n", dev->name); + return; + } + if(lp->board==TANGENT && ltf->length!=2501) + { + printk(KERN_WARNING "%s: Firmware is not length of DRVCODE.BIN.\n", dev->name); + return; + } + + if(lp->board==DAYNA) + { + /* + * We must wait for a status response + * with the DAYNA board. + */ + while(++i<65536) + { + if((inb(ioaddr+DAYNA_CARD_STATUS)&3)==1) + break; + } + + if(i==65536) + return; + } + + /* + * Upload the firmware and kick. Byte-by-byte works nicely here. + */ + i=0; + length = ltf->length; + while(length--) + { + outb(ltf->data[i], ioaddr); + i++; + } + + if(cops_debug > 1) + printk("%s: Uploaded firmware - %d bytes of %d bytes.\n", + dev->name, i, ltf->length); + + if(lp->board==DAYNA) /* Tell Dayna to run the firmware code. */ + outb(1, ioaddr+DAYNA_INT_CARD); + else /* Tell Tang to run the firmware code. */ + inb(ioaddr); + + if(lp->board==TANGENT) + { + tangent_wait_reset(ioaddr); + inb(ioaddr); /* Clear initial ready signal. */ + } +} + +/* + * Get the LocalTalk Nodeid from the card. We can suggest + * any nodeid 1-254. The card will try and get that exact + * address else we can specify 0 as the nodeid and the card + * will autoprobe for a nodeid. + */ +static int cops_nodeid (struct net_device *dev, int nodeid) +{ + struct cops_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + if(lp->board == DAYNA) + { + /* Empty any pending adapter responses. */ + while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0) + { + outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupts. */ + if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST) + cops_rx(dev); /* Kick any packets waiting. */ + schedule(); + } + + outb(2, ioaddr); /* Output command packet length as 2. */ + outb(0, ioaddr); + outb(LAP_INIT, ioaddr); /* Send LAP_INIT command byte. */ + outb(nodeid, ioaddr); /* Suggest node address. */ + } + + if(lp->board == TANGENT) + { + /* Empty any pending adapter responses. */ + while(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY) + { + outb(0, ioaddr+COPS_CLEAR_INT); /* Clear interrupt. */ + cops_rx(dev); /* Kick out packets waiting. */ + schedule(); + } + + /* Not sure what Tangent does if nodeid picked is used. */ + if(nodeid == 0) /* Seed. */ + nodeid = jiffies&0xFF; /* Get a random try */ + outb(2, ioaddr); /* Command length LSB */ + outb(0, ioaddr); /* Command length MSB */ + outb(LAP_INIT, ioaddr); /* Send LAP_INIT byte */ + outb(nodeid, ioaddr); /* LAP address hint. */ + outb(0xFF, ioaddr); /* Int. level to use */ + } + + lp->node_acquire=0; /* Set nodeid holder to 0. */ + while(lp->node_acquire==0) /* Get *True* nodeid finally. */ + { + outb(0, ioaddr+COPS_CLEAR_INT); /* Clear any interrupt. */ + + if(lp->board == DAYNA) + { + if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_REQUEST) + cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */ + } + if(lp->board == TANGENT) + { + if(inb(ioaddr+TANG_CARD_STATUS)&TANG_RX_READY) + cops_rx(dev); /* Grab the nodeid put in lp->node_acquire. */ + } + schedule(); + } + + if(cops_debug > 1) + printk(KERN_DEBUG "%s: Node ID %d has been acquired.\n", + dev->name, lp->node_acquire); + + lp->nodeid=1; /* Set got nodeid to 1. */ + + return 0; +} + +/* + * Poll the Tangent type cards to see if we have work. + */ + +static void cops_poll(unsigned long ltdev) +{ + int ioaddr, status; + int boguscount = 0; + + struct net_device *dev = (struct net_device *)ltdev; + + del_timer(&cops_timer); + + if(dev == NULL) + return; /* We've been downed */ + + ioaddr = dev->base_addr; + do { + status=inb(ioaddr+TANG_CARD_STATUS); + if(status & TANG_RX_READY) + cops_rx(dev); + if(status & TANG_TX_READY) + netif_wake_queue(dev); + status = inb(ioaddr+TANG_CARD_STATUS); + } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY))); + + /* poll 20 times per second */ + cops_timer.expires = jiffies + HZ/20; + add_timer(&cops_timer); +} + +/* + * The typical workload of the driver: + * Handle the network interface interrupts. + */ +static irqreturn_t cops_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + struct cops_local *lp; + int ioaddr, status; + int boguscount = 0; + + ioaddr = dev->base_addr; + lp = netdev_priv(dev); + + if(lp->board==DAYNA) + { + do { + outb(0, ioaddr + COPS_CLEAR_INT); + status=inb(ioaddr+DAYNA_CARD_STATUS); + if((status&0x03)==DAYNA_RX_REQUEST) + cops_rx(dev); + netif_wake_queue(dev); + } while(++boguscount < 20); + } + else + { + do { + status=inb(ioaddr+TANG_CARD_STATUS); + if(status & TANG_RX_READY) + cops_rx(dev); + if(status & TANG_TX_READY) + netif_wake_queue(dev); + status=inb(ioaddr+TANG_CARD_STATUS); + } while((++boguscount < 20) && (status&(TANG_RX_READY|TANG_TX_READY))); + } + + return IRQ_HANDLED; +} + +/* + * We have a good packet(s), get it/them out of the buffers. + */ +static void cops_rx(struct net_device *dev) +{ + int pkt_len = 0; + int rsp_type = 0; + struct sk_buff *skb = NULL; + struct cops_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + int boguscount = 0; + unsigned long flags; + + + spin_lock_irqsave(&lp->lock, flags); + + if(lp->board==DAYNA) + { + outb(0, ioaddr); /* Send out Zero length. */ + outb(0, ioaddr); + outb(DATA_READ, ioaddr); /* Send read command out. */ + + /* Wait for DMA to turn around. */ + while(++boguscount<1000000) + { + barrier(); + if((inb(ioaddr+DAYNA_CARD_STATUS)&0x03)==DAYNA_RX_READY) + break; + } + + if(boguscount==1000000) + { + printk(KERN_WARNING "%s: DMA timed out.\n",dev->name); + spin_unlock_irqrestore(&lp->lock, flags); + return; + } + } + + /* Get response length. */ + if(lp->board==DAYNA) + pkt_len = inb(ioaddr) & 0xFF; + else + pkt_len = inb(ioaddr) & 0x00FF; + pkt_len |= (inb(ioaddr) << 8); + /* Input IO code. */ + rsp_type=inb(ioaddr); + + /* Malloc up new buffer. */ + skb = dev_alloc_skb(pkt_len); + if(skb == NULL) + { + printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", + dev->name); + dev->stats.rx_dropped++; + while(pkt_len--) /* Discard packet */ + inb(ioaddr); + spin_unlock_irqrestore(&lp->lock, flags); + return; + } + skb->dev = dev; + skb_put(skb, pkt_len); + skb->protocol = htons(ETH_P_LOCALTALK); + + insb(ioaddr, skb->data, pkt_len); /* Eat the Data */ + + if(lp->board==DAYNA) + outb(1, ioaddr+DAYNA_INT_CARD); /* Interrupt the card */ + + spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */ + + /* Check for bad response length */ + if(pkt_len < 0 || pkt_len > MAX_LLAP_SIZE) + { + printk(KERN_WARNING "%s: Bad packet length of %d bytes.\n", + dev->name, pkt_len); + dev->stats.tx_errors++; + dev_kfree_skb_any(skb); + return; + } + + /* Set nodeid and then get out. */ + if(rsp_type == LAP_INIT_RSP) + { /* Nodeid taken from received packet. */ + lp->node_acquire = skb->data[0]; + dev_kfree_skb_any(skb); + return; + } + + /* One last check to make sure we have a good packet. */ + if(rsp_type != LAP_RESPONSE) + { + printk(KERN_WARNING "%s: Bad packet type %d.\n", dev->name, rsp_type); + dev->stats.tx_errors++; + dev_kfree_skb_any(skb); + return; + } + + skb_reset_mac_header(skb); /* Point to entire packet. */ + skb_pull(skb,3); + skb_reset_transport_header(skb); /* Point to data (Skip header). */ + + /* Update the counters. */ + dev->stats.rx_packets++; + dev->stats.rx_bytes += skb->len; + + /* Send packet to a higher place. */ + netif_rx(skb); +} + +static void cops_timeout(struct net_device *dev) +{ + struct cops_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + dev->stats.tx_errors++; + if(lp->board==TANGENT) + { + if((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0) + printk(KERN_WARNING "%s: No TX complete interrupt.\n", dev->name); + } + printk(KERN_WARNING "%s: Transmit timed out.\n", dev->name); + cops_jumpstart(dev); /* Restart the card. */ + dev->trans_start = jiffies; /* prevent tx timeout */ + netif_wake_queue(dev); +} + + +/* + * Make the card transmit a LocalTalk packet. + */ + +static netdev_tx_t cops_send_packet(struct sk_buff *skb, + struct net_device *dev) +{ + struct cops_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + unsigned long flags; + + /* + * Block a timer-based transmit from overlapping. + */ + + netif_stop_queue(dev); + + spin_lock_irqsave(&lp->lock, flags); + if(lp->board == DAYNA) /* Wait for adapter transmit buffer. */ + while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0) + cpu_relax(); + if(lp->board == TANGENT) /* Wait for adapter transmit buffer. */ + while((inb(ioaddr+TANG_CARD_STATUS)&TANG_TX_READY)==0) + cpu_relax(); + + /* Output IO length. */ + outb(skb->len, ioaddr); + if(lp->board == DAYNA) + outb(skb->len >> 8, ioaddr); + else + outb((skb->len >> 8)&0x0FF, ioaddr); + + /* Output IO code. */ + outb(LAP_WRITE, ioaddr); + + if(lp->board == DAYNA) /* Check the transmit buffer again. */ + while((inb(ioaddr+DAYNA_CARD_STATUS)&DAYNA_TX_READY)==0); + + outsb(ioaddr, skb->data, skb->len); /* Send out the data. */ + + if(lp->board==DAYNA) /* Dayna requires you kick the card */ + outb(1, ioaddr+DAYNA_INT_CARD); + + spin_unlock_irqrestore(&lp->lock, flags); /* Restore interrupts. */ + + /* Done sending packet, update counters and cleanup. */ + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + dev_kfree_skb (skb); + return NETDEV_TX_OK; +} + +/* + * Dummy function to keep the Appletalk layer happy. + */ + +static void set_multicast_list(struct net_device *dev) +{ + if(cops_debug >= 3) + printk("%s: set_multicast_list executed\n", dev->name); +} + +/* + * System ioctls for the COPS LocalTalk card. + */ + +static int cops_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct cops_local *lp = netdev_priv(dev); + struct sockaddr_at *sa = (struct sockaddr_at *)&ifr->ifr_addr; + struct atalk_addr *aa = (struct atalk_addr *)&lp->node_addr; + + switch(cmd) + { + case SIOCSIFADDR: + /* Get and set the nodeid and network # atalkd wants. */ + cops_nodeid(dev, sa->sat_addr.s_node); + aa->s_net = sa->sat_addr.s_net; + aa->s_node = lp->node_acquire; + + /* Set broardcast address. */ + dev->broadcast[0] = 0xFF; + + /* Set hardware address. */ + dev->dev_addr[0] = aa->s_node; + dev->addr_len = 1; + return 0; + + case SIOCGIFADDR: + sa->sat_addr.s_net = aa->s_net; + sa->sat_addr.s_node = aa->s_node; + return 0; + + default: + return -EOPNOTSUPP; + } +} + +/* + * The inverse routine to cops_open(). + */ + +static int cops_close(struct net_device *dev) +{ + struct cops_local *lp = netdev_priv(dev); + + /* If we were running polled, yank the timer. + */ + if(lp->board==TANGENT && dev->irq==0) + del_timer(&cops_timer); + + netif_stop_queue(dev); + return 0; +} + + +#ifdef MODULE +static struct net_device *cops_dev; + +MODULE_LICENSE("GPL"); +module_param(io, int, 0); +module_param(irq, int, 0); +module_param(board_type, int, 0); + +static int __init cops_module_init(void) +{ + if (io == 0) + printk(KERN_WARNING "%s: You shouldn't autoprobe with insmod\n", + cardname); + cops_dev = cops_probe(-1); + if (IS_ERR(cops_dev)) + return PTR_ERR(cops_dev); + return 0; +} + +static void __exit cops_module_exit(void) +{ + unregister_netdev(cops_dev); + cleanup_card(cops_dev); + free_netdev(cops_dev); +} +module_init(cops_module_init); +module_exit(cops_module_exit); +#endif /* MODULE */ diff --git a/drivers/staging/appletalk/cops.h b/drivers/staging/appletalk/cops.h new file mode 100644 index 000000000000..fd2750b269c8 --- /dev/null +++ b/drivers/staging/appletalk/cops.h @@ -0,0 +1,60 @@ +/* cops.h: LocalTalk driver for Linux. + * + * Authors: + * - Jay Schulist + */ + +#ifndef __LINUX_COPSLTALK_H +#define __LINUX_COPSLTALK_H + +#ifdef __KERNEL__ + +/* Max LLAP size we will accept. */ +#define MAX_LLAP_SIZE 603 + +/* Tangent */ +#define TANG_CARD_STATUS 1 +#define TANG_CLEAR_INT 1 +#define TANG_RESET 3 + +#define TANG_TX_READY 1 +#define TANG_RX_READY 2 + +/* Dayna */ +#define DAYNA_CMD_DATA 0 +#define DAYNA_CLEAR_INT 1 +#define DAYNA_CARD_STATUS 2 +#define DAYNA_INT_CARD 3 +#define DAYNA_RESET 4 + +#define DAYNA_RX_READY 0 +#define DAYNA_TX_READY 1 +#define DAYNA_RX_REQUEST 3 + +/* Same on both card types */ +#define COPS_CLEAR_INT 1 + +/* LAP response codes received from the cards. */ +#define LAP_INIT 1 /* Init cmd */ +#define LAP_INIT_RSP 2 /* Init response */ +#define LAP_WRITE 3 /* Write cmd */ +#define DATA_READ 4 /* Data read */ +#define LAP_RESPONSE 4 /* Received ALAP frame response */ +#define LAP_GETSTAT 5 /* Get LAP and HW status */ +#define LAP_RSPSTAT 6 /* Status response */ + +#endif + +/* + * Structure to hold the firmware information. + */ +struct ltfirmware +{ + unsigned int length; + const unsigned char *data; +}; + +#define DAYNA 1 +#define TANGENT 2 + +#endif diff --git a/drivers/staging/appletalk/cops_ffdrv.h b/drivers/staging/appletalk/cops_ffdrv.h new file mode 100644 index 000000000000..b02005087c1b --- /dev/null +++ b/drivers/staging/appletalk/cops_ffdrv.h @@ -0,0 +1,532 @@ + +/* + * The firmware this driver downloads into the Localtalk card is a + * separate program and is not GPL'd source code, even though the Linux + * side driver and the routine that loads this data into the card are. + * + * It is taken from the COPS SDK and is under the following license + * + * This material is licensed to you strictly for use in conjunction with + * the use of COPS LocalTalk adapters. + * There is no charge for this SDK. And no waranty express or implied + * about its fitness for any purpose. However, we will cheerefully + * refund every penny you paid for this SDK... + * Regards, + * + * Thomas F. Divine + * Chief Scientist + */ + + +/* cops_ffdrv.h: LocalTalk driver firmware dump for Linux. + * + * Authors: + * - Jay Schulist + */ + + +#ifdef CONFIG_COPS_DAYNA + +static const unsigned char ffdrv_code[] = { + 58,3,0,50,228,149,33,255,255,34,226,149, + 249,17,40,152,33,202,154,183,237,82,77,68, + 11,107,98,19,54,0,237,176,175,50,80,0, + 62,128,237,71,62,32,237,57,51,62,12,237, + 57,50,237,57,54,62,6,237,57,52,62,12, + 237,57,49,33,107,137,34,32,128,33,83,130, + 34,40,128,33,86,130,34,42,128,33,112,130, + 34,36,128,33,211,130,34,38,128,62,0,237, + 57,16,33,63,148,34,34,128,237,94,205,15, + 130,251,205,168,145,24,141,67,111,112,121,114, + 105,103,104,116,32,40,67,41,32,49,57,56, + 56,32,45,32,68,97,121,110,97,32,67,111, + 109,109,117,110,105,99,97,116,105,111,110,115, + 32,32,32,65,108,108,32,114,105,103,104,116, + 115,32,114,101,115,101,114,118,101,100,46,32, + 32,40,68,40,68,7,16,8,34,7,22,6, + 16,5,12,4,8,3,6,140,0,16,39,128, + 0,4,96,10,224,6,0,7,126,2,64,11, + 118,12,6,13,0,14,193,15,0,5,96,3, + 192,1,64,9,8,62,9,211,66,62,192,211, + 66,62,100,61,32,253,6,28,33,205,129,14, + 66,237,163,194,253,129,6,28,33,205,129,14, + 64,237,163,194,9,130,201,62,47,50,71,152, + 62,47,211,68,58,203,129,237,57,20,58,204, + 129,237,57,21,33,77,152,54,132,205,233,129, + 58,228,149,254,209,40,6,56,4,62,0,24, + 2,219,96,33,233,149,119,230,62,33,232,149, + 119,213,33,8,152,17,7,0,25,119,19,25, + 119,209,201,251,237,77,245,197,213,229,221,229, + 205,233,129,62,1,50,106,137,205,158,139,221, + 225,225,209,193,241,251,237,77,245,197,213,219, + 72,237,56,16,230,46,237,57,16,237,56,12, + 58,72,152,183,32,26,6,20,17,128,2,237, + 56,46,187,32,35,237,56,47,186,32,29,219, + 72,230,1,32,3,5,32,232,175,50,72,152, + 229,221,229,62,1,50,106,137,205,158,139,221, + 225,225,24,25,62,1,50,72,152,58,201,129, + 237,57,12,58,202,129,237,57,13,237,56,16, + 246,17,237,57,16,209,193,241,251,237,77,245, + 197,229,213,221,229,237,56,16,230,17,237,57, + 16,237,56,20,58,34,152,246,16,246,8,211, + 68,62,6,61,32,253,58,34,152,246,8,211, + 68,58,203,129,237,57,20,58,204,129,237,57, + 21,237,56,16,246,34,237,57,16,221,225,209, + 225,193,241,251,237,77,33,2,0,57,126,230, + 3,237,100,1,40,2,246,128,230,130,245,62, + 5,211,64,241,211,64,201,229,213,243,237,56, + 16,230,46,237,57,16,237,56,12,251,70,35, + 35,126,254,175,202,77,133,254,129,202,15,133, + 230,128,194,191,132,43,58,44,152,119,33,76, + 152,119,35,62,132,119,120,254,255,40,4,58, + 49,152,119,219,72,43,43,112,17,3,0,237, + 56,52,230,248,237,57,52,219,72,230,1,194, + 141,131,209,225,237,56,52,246,6,237,57,52, + 62,1,55,251,201,62,3,211,66,62,192,211, + 66,62,48,211,66,0,0,219,66,230,1,40, + 4,219,67,24,240,205,203,135,58,75,152,254, + 255,202,128,132,58,49,152,254,161,250,207,131, + 58,34,152,211,68,62,10,211,66,62,128,211, + 66,62,11,211,66,62,6,211,66,24,0,62, + 14,211,66,62,33,211,66,62,1,211,66,62, + 64,211,66,62,3,211,66,62,209,211,66,62, + 100,71,219,66,230,1,32,6,5,32,247,195, + 248,132,219,67,71,58,44,152,184,194,248,132, + 62,100,71,219,66,230,1,32,6,5,32,247, + 195,248,132,219,67,62,100,71,219,66,230,1, + 32,6,5,32,247,195,248,132,219,67,254,133, + 32,7,62,0,50,74,152,24,17,254,173,32, + 7,62,1,50,74,152,24,6,254,141,194,248, + 132,71,209,225,58,49,152,254,132,32,10,62, + 50,205,2,134,205,144,135,24,27,254,140,32, + 15,62,110,205,2,134,62,141,184,32,5,205, + 144,135,24,8,62,10,205,2,134,205,8,134, + 62,1,50,106,137,205,158,139,237,56,52,246, + 6,237,57,52,175,183,251,201,62,20,135,237, + 57,20,175,237,57,21,237,56,16,246,2,237, + 57,16,237,56,20,95,237,56,21,123,254,10, + 48,244,237,56,16,230,17,237,57,16,209,225, + 205,144,135,62,1,50,106,137,205,158,139,237, + 56,52,246,6,237,57,52,175,183,251,201,209, + 225,243,219,72,230,1,40,13,62,10,211,66, + 0,0,219,66,230,192,202,226,132,237,56,52, + 246,6,237,57,52,62,1,55,251,201,205,203, + 135,62,1,50,106,137,205,158,139,237,56,52, + 246,6,237,57,52,183,251,201,209,225,62,1, + 50,106,137,205,158,139,237,56,52,246,6,237, + 57,52,62,2,55,251,201,209,225,243,219,72, + 230,1,202,213,132,62,10,211,66,0,0,219, + 66,230,192,194,213,132,229,62,1,50,106,137, + 42,40,152,205,65,143,225,17,3,0,205,111, + 136,62,6,211,66,58,44,152,211,66,237,56, + 52,246,6,237,57,52,183,251,201,209,197,237, + 56,52,230,248,237,57,52,219,72,230,1,32, + 15,193,225,237,56,52,246,6,237,57,52,62, + 1,55,251,201,14,23,58,37,152,254,0,40, + 14,14,2,254,1,32,5,62,140,119,24,3, + 62,132,119,43,43,197,205,203,135,193,62,1, + 211,66,62,64,211,66,62,3,211,66,62,193, + 211,66,62,100,203,39,71,219,66,230,1,32, + 6,5,32,247,195,229,133,33,238,151,219,67, + 71,58,44,152,184,194,229,133,119,62,100,71, + 219,66,230,1,32,6,5,32,247,195,229,133, + 219,67,35,119,13,32,234,193,225,62,1,50, + 106,137,205,158,139,237,56,52,246,6,237,57, + 52,175,183,251,201,33,234,151,35,35,62,255, + 119,193,225,62,1,50,106,137,205,158,139,237, + 56,52,246,6,237,57,52,175,251,201,243,61, + 32,253,251,201,62,3,211,66,62,192,211,66, + 58,49,152,254,140,32,19,197,229,213,17,181, + 129,33,185,129,1,2,0,237,176,209,225,193, + 24,27,229,213,33,187,129,58,49,152,230,15, + 87,30,2,237,92,25,17,181,129,126,18,19, + 35,126,18,209,225,58,34,152,246,8,211,68, + 58,49,152,254,165,40,14,254,164,40,10,62, + 10,211,66,62,224,211,66,24,25,58,74,152, + 254,0,40,10,62,10,211,66,62,160,211,66, + 24,8,62,10,211,66,62,128,211,66,62,11, + 211,66,62,6,211,66,205,147,143,62,5,211, + 66,62,224,211,66,62,5,211,66,62,96,211, + 66,62,5,61,32,253,62,5,211,66,62,224, + 211,66,62,14,61,32,253,62,5,211,66,62, + 233,211,66,62,128,211,66,58,181,129,61,32, + 253,62,1,211,66,62,192,211,66,1,254,19, + 237,56,46,187,32,6,13,32,247,195,226,134, + 62,192,211,66,0,0,219,66,203,119,40,250, + 219,66,203,87,40,250,243,237,56,16,230,17, + 237,57,16,237,56,20,251,62,5,211,66,62, + 224,211,66,58,182,129,61,32,253,229,33,181, + 129,58,183,129,203,63,119,35,58,184,129,119, + 225,62,10,211,66,62,224,211,66,62,11,211, + 66,62,118,211,66,62,47,211,68,62,5,211, + 66,62,233,211,66,58,181,129,61,32,253,62, + 5,211,66,62,224,211,66,58,182,129,61,32, + 253,62,5,211,66,62,96,211,66,201,229,213, + 58,50,152,230,15,87,30,2,237,92,33,187, + 129,25,17,181,129,126,18,35,19,126,18,209, + 225,58,71,152,246,8,211,68,58,50,152,254, + 165,40,14,254,164,40,10,62,10,211,66,62, + 224,211,66,24,8,62,10,211,66,62,128,211, + 66,62,11,211,66,62,6,211,66,195,248,135, + 62,3,211,66,62,192,211,66,197,229,213,17, + 181,129,33,183,129,1,2,0,237,176,209,225, + 193,62,47,211,68,62,10,211,66,62,224,211, + 66,62,11,211,66,62,118,211,66,62,1,211, + 66,62,0,211,66,205,147,143,195,16,136,62, + 3,211,66,62,192,211,66,197,229,213,17,181, + 129,33,183,129,1,2,0,237,176,209,225,193, + 62,47,211,68,62,10,211,66,62,224,211,66, + 62,11,211,66,62,118,211,66,205,147,143,62, + 5,211,66,62,224,211,66,62,5,211,66,62, + 96,211,66,62,5,61,32,253,62,5,211,66, + 62,224,211,66,62,14,61,32,253,62,5,211, + 66,62,233,211,66,62,128,211,66,58,181,129, + 61,32,253,62,1,211,66,62,192,211,66,1, + 254,19,237,56,46,187,32,6,13,32,247,195, + 88,136,62,192,211,66,0,0,219,66,203,119, + 40,250,219,66,203,87,40,250,62,5,211,66, + 62,224,211,66,58,182,129,61,32,253,62,5, + 211,66,62,96,211,66,201,197,14,67,6,0, + 62,3,211,66,62,192,211,66,62,48,211,66, + 0,0,219,66,230,1,40,4,219,67,24,240, + 62,5,211,66,62,233,211,66,62,128,211,66, + 58,181,129,61,32,253,237,163,29,62,192,211, + 66,219,66,230,4,40,250,237,163,29,32,245, + 219,66,230,4,40,250,62,255,71,219,66,230, + 4,40,3,5,32,247,219,66,230,4,40,250, + 62,5,211,66,62,224,211,66,58,182,129,61, + 32,253,62,5,211,66,62,96,211,66,58,71, + 152,254,1,202,18,137,62,16,211,66,62,56, + 211,66,62,14,211,66,62,33,211,66,62,1, + 211,66,62,248,211,66,237,56,48,246,153,230, + 207,237,57,48,62,3,211,66,62,221,211,66, + 193,201,58,71,152,211,68,62,10,211,66,62, + 128,211,66,62,11,211,66,62,6,211,66,62, + 6,211,66,58,44,152,211,66,62,16,211,66, + 62,56,211,66,62,48,211,66,0,0,62,14, + 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0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 175,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,133,1,0,0,0,63, + 255,255,255,255,0,0,0,63,0,0,0,0, + 0,0,0,0,0,0,0,24,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0 + } ; + +#endif diff --git a/drivers/staging/appletalk/cops_ltdrv.h b/drivers/staging/appletalk/cops_ltdrv.h new file mode 100644 index 000000000000..c699b1ad31da --- /dev/null +++ b/drivers/staging/appletalk/cops_ltdrv.h @@ -0,0 +1,241 @@ +/* + * The firmware this driver downloads into the Localtalk card is a + * separate program and is not GPL'd source code, even though the Linux + * side driver and the routine that loads this data into the card are. + * + * It is taken from the COPS SDK and is under the following license + * + * This material is licensed to you strictly for use in conjunction with + * the use of COPS LocalTalk adapters. + * There is no charge for this SDK. And no waranty express or implied + * about its fitness for any purpose. However, we will cheerefully + * refund every penny you paid for this SDK... + * Regards, + * + * Thomas F. Divine + * Chief Scientist + */ + + +/* cops_ltdrv.h: LocalTalk driver firmware dump for Linux. + * + * Authors: + * - Jay Schulist + */ + + +#ifdef CONFIG_COPS_TANGENT + +static const unsigned char ltdrv_code[] = { + 58,3,0,50,148,10,33,143,15,62,85,119, + 190,32,9,62,170,119,190,32,3,35,24,241, + 34,146,10,249,17,150,10,33,143,15,183,237, + 82,77,68,11,107,98,19,54,0,237,176,62, + 16,237,57,51,62,0,237,57,50,237,57,54, + 62,12,237,57,49,62,195,33,39,2,50,56, + 0,34,57,0,237,86,205,30,2,251,205,60, + 10,24,169,67,111,112,121,114,105,103,104,116, + 32,40,99,41,32,49,57,56,56,45,49,57, + 57,50,44,32,80,114,105,110,116,105,110,103, + 32,67,111,109,109,117,110,105,99,97,116,105, + 111,110,115,32,65,115,115,111,99,105,97,116, + 101,115,44,32,73,110,99,46,65,108,108,32, + 114,105,103,104,116,115,32,114,101,115,101,114, + 118,101,100,46,32,32,4,4,22,40,255,60, + 4,96,10,224,6,0,7,126,2,64,11,246, + 12,6,13,0,14,193,15,0,5,96,3,192, + 1,0,9,8,62,3,211,82,62,192,211,82, + 201,62,3,211,82,62,213,211,82,201,62,5, + 211,82,62,224,211,82,201,62,5,211,82,62, + 224,211,82,201,62,5,211,82,62,96,211,82, + 201,6,28,33,180,1,14,82,237,163,194,4, + 2,33,39,2,34,64,0,58,3,0,230,1, + 192,62,11,237,121,62,118,237,121,201,33,182, + 10,54,132,205,253,1,201,245,197,213,229,42, + 150,10,14,83,17,98,2,67,20,237,162,58, + 179,1,95,219,82,230,1,32,6,29,32,247, + 195,17,3,62,1,211,82,219,82,95,230,160, + 32,10,237,162,32,225,21,32,222,195,15,3, + 237,162,123,230,96,194,21,3,62,48,211,82, + 62,1,211,82,175,211,82,237,91,150,10,43, + 55,237,82,218,19,3,34,152,10,98,107,58, + 154,10,190,32,81,62,1,50,158,10,35,35, + 62,132,190,32,44,54,133,43,70,58,154,10, + 119,43,112,17,3,0,205,137,3,62,16,211, + 82,62,56,211,82,205,217,1,42,150,10,14, + 83,17,98,2,67,20,58,178,1,95,195,59, + 2,62,129,190,194,227,2,54,130,43,70,58, + 154,10,119,43,112,17,3,0,205,137,3,195, + 254,2,35,35,126,254,132,194,227,2,205,61, + 3,24,20,62,128,166,194,222,2,221,229,221, + 33,175,10,205,93,6,205,144,7,221,225,225, + 209,193,241,251,237,77,221,229,221,33,159,10, + 205,93,6,221,225,205,61,3,195,247,2,24, + 237,24,235,24,233,230,64,40,2,24,227,24, + 225,175,50,179,10,205,208,1,201,197,33,4, + 0,57,126,35,102,111,205,51,3,193,201,62, + 1,50,179,10,34,150,10,54,0,58,179,10, + 183,200,62,14,211,82,62,193,211,82,62,10, + 211,82,62,224,211,82,62,6,211,82,58,154, + 10,211,82,62,16,211,82,62,56,211,82,62, + 48,211,82,219,82,230,1,40,4,219,83,24, + 242,62,14,211,82,62,33,211,82,62,1,211, + 82,62,9,211,82,62,32,211,82,205,217,1, + 201,14,83,205,208,1,24,23,14,83,205,208, + 1,205,226,1,58,174,1,61,32,253,205,244, + 1,58,174,1,61,32,253,205,226,1,58,175, + 1,61,32,253,62,5,211,82,62,233,211,82, + 62,128,211,82,58,176,1,61,32,253,237,163, + 27,62,192,211,82,219,82,230,4,40,250,237, + 163,27,122,179,32,243,219,82,230,4,40,250, + 58,178,1,71,219,82,230,4,40,3,5,32, + 247,219,82,230,4,40,250,205,235,1,58,177, + 1,61,32,253,205,244,1,201,229,213,35,35, + 126,230,128,194,145,4,43,58,154,10,119,43, + 70,33,181,10,119,43,112,17,3,0,243,62, + 10,211,82,219,82,230,128,202,41,4,209,225, + 62,1,55,251,201,205,144,3,58,180,10,254, + 255,202,127,4,205,217,1,58,178,1,71,219, + 82,230,1,32,6,5,32,247,195,173,4,219, + 83,71,58,154,10,184,194,173,4,58,178,1, + 71,219,82,230,1,32,6,5,32,247,195,173, + 4,219,83,58,178,1,71,219,82,230,1,32, + 6,5,32,247,195,173,4,219,83,254,133,194, + 173,4,58,179,1,24,4,58,179,1,135,61, + 32,253,209,225,205,137,3,205,61,3,183,251, + 201,209,225,243,62,10,211,82,219,82,230,128, + 202,164,4,62,1,55,251,201,205,144,3,205, + 61,3,183,251,201,209,225,62,2,55,251,201, + 243,62,14,211,82,62,33,211,82,251,201,33, + 4,0,57,94,35,86,33,2,0,57,126,35, + 102,111,221,229,34,193,10,237,83,195,10,221, + 33,171,10,205,93,6,58,185,10,50,186,10, + 58,184,10,135,50,184,10,205,112,6,254,3, + 56,16,58,185,10,135,60,230,15,50,185,10, + 175,50,184,10,24,23,58,183,10,205,112,6, + 254,3,48,13,58,185,10,203,63,50,185,10, + 62,255,50,183,10,58,185,10,50,186,10,58, + 183,10,135,50,183,10,62,32,50,187,10,50, + 188,10,6,255,219,82,230,16,32,3,5,32, + 247,205,180,4,6,40,219,82,230,16,40,3, + 5,32,247,62,10,211,82,219,82,230,128,194, + 46,5,219,82,230,16,40,214,237,95,71,58, + 186,10,160,230,15,40,32,71,14,10,62,10, + 211,82,219,82,230,128,202,119,5,205,180,4, + 195,156,5,219,82,230,16,202,156,5,13,32, + 229,16,225,42,193,10,237,91,195,10,205,252, + 3,48,7,61,202,156,5,195,197,5,221,225, + 33,0,0,201,221,33,163,10,205,93,6,58, + 188,10,61,50,188,10,40,19,58,186,10,246, + 1,50,186,10,58,183,10,246,1,50,183,10, + 195,46,5,221,225,33,1,0,201,221,33,167, + 10,205,93,6,58,184,10,246,1,50,184,10, + 58,186,10,135,246,1,50,186,10,58,187,10, + 61,50,187,10,194,46,5,221,225,33,2,0, + 201,221,229,33,0,0,57,17,4,0,25,126, + 50,154,10,230,128,50,189,10,58,189,10,183, + 40,6,221,33,88,2,24,4,221,33,150,0, + 58,154,10,183,40,49,60,40,46,61,33,190, + 10,119,35,119,35,54,129,175,50,158,10,221, + 43,221,229,225,124,181,40,42,33,190,10,17, + 3,0,205,206,4,17,232,3,27,123,178,32, + 251,58,158,10,183,40,224,58,154,10,71,62, + 7,128,230,127,71,58,189,10,176,50,154,10, + 24,166,221,225,201,183,221,52,0,192,221,52, + 1,192,221,52,2,192,221,52,3,192,55,201, + 6,8,14,0,31,48,1,12,16,250,121,201, + 33,2,0,57,94,35,86,35,78,35,70,35, + 126,35,102,105,79,120,68,103,237,176,201,33, + 2,0,57,126,35,102,111,62,17,237,57,48, + 125,237,57,40,124,237,57,41,62,0,237,57, + 42,62,64,237,57,43,62,0,237,57,44,33, + 128,2,125,237,57,46,124,237,57,47,62,145, + 237,57,48,211,68,58,149,10,211,66,201,33, + 2,0,57,126,35,102,111,62,33,237,57,48, + 62,64,237,57,32,62,0,237,57,33,237,57, + 34,125,237,57,35,124,237,57,36,62,0,237, + 57,37,33,128,2,125,237,57,38,124,237,57, + 39,62,97,237,57,48,211,67,58,149,10,211, + 66,201,237,56,46,95,237,56,47,87,237,56, + 46,111,237,56,47,103,183,237,82,32,235,33, + 128,2,183,237,82,201,237,56,38,95,237,56, + 39,87,237,56,38,111,237,56,39,103,183,237, + 82,32,235,33,128,2,183,237,82,201,205,106, + 10,221,110,6,221,102,7,126,35,110,103,195, + 118,10,205,106,10,33,0,0,34,205,10,34, + 198,10,34,200,10,33,143,15,34,207,10,237, + 91,207,10,42,146,10,183,237,82,17,0,255, + 25,34,203,10,203,124,40,6,33,0,125,34, + 203,10,42,207,10,229,205,37,3,195,118,10, + 205,106,10,229,42,150,10,35,35,35,229,205, + 70,7,193,124,230,3,103,221,117,254,221,116, + 255,237,91,152,10,35,35,35,183,237,82,32, + 12,17,5,0,42,152,10,205,91,10,242,203, + 7,42,150,10,229,205,37,3,195,118,10,237, + 91,152,10,42,200,10,25,34,200,10,42,205, + 10,25,34,205,10,237,91,203,10,33,158,253, + 25,237,91,205,10,205,91,10,242,245,7,33, + 0,0,34,205,10,62,1,50,197,10,205,5, + 8,33,0,0,57,249,195,118,10,205,106,10, + 58,197,10,183,202,118,10,237,91,198,10,42, + 205,10,205,91,10,242,46,8,237,91,205,10, + 33,98,2,25,237,91,198,10,205,91,10,250, + 78,8,237,91,198,10,42,205,10,183,237,82, + 32,7,42,200,10,125,180,40,13,237,91,205, + 10,42,198,10,205,91,10,242,97,8,237,91, + 207,10,42,205,10,25,229,205,37,3,175,50, + 197,10,195,118,10,205,29,3,33,0,0,57, + 249,195,118,10,205,106,10,58,202,10,183,40, + 22,205,14,7,237,91,209,10,19,19,19,205, + 91,10,242,139,8,33,1,0,195,118,10,33, + 0,0,195,118,10,205,126,10,252,255,205,108, + 8,125,180,194,118,10,237,91,200,10,33,0, + 0,205,91,10,242,118,10,237,91,207,10,42, + 198,10,25,221,117,254,221,116,255,35,35,35, + 229,205,70,7,193,124,230,3,103,35,35,35, + 221,117,252,221,116,253,229,221,110,254,221,102, + 255,229,33,212,10,229,205,124,6,193,193,221, + 110,252,221,102,253,34,209,10,33,211,10,54, + 4,33,209,10,227,205,147,6,193,62,1,50, + 202,10,243,221,94,252,221,86,253,42,200,10, + 183,237,82,34,200,10,203,124,40,17,33,0, + 0,34,200,10,34,205,10,34,198,10,50,197, + 10,24,37,221,94,252,221,86,253,42,198,10, + 25,34,198,10,237,91,203,10,33,158,253,25, + 237,91,198,10,205,91,10,242,68,9,33,0, + 0,34,198,10,205,5,8,33,0,0,57,249, + 251,195,118,10,205,106,10,33,49,13,126,183, + 40,16,205,42,7,237,91,47,13,19,19,19, + 205,91,10,242,117,9,58,142,15,198,1,50, + 142,15,195,118,10,33,49,13,126,254,1,40, + 25,254,3,202,7,10,254,5,202,21,10,33, + 49,13,54,0,33,47,13,229,205,207,6,195, + 118,10,58,141,15,183,32,72,33,51,13,126, + 50,149,10,205,86,7,33,50,13,126,230,127, + 183,32,40,58,142,15,230,127,50,142,15,183, + 32,5,198,1,50,142,15,33,50,13,126,111, + 23,159,103,203,125,58,142,15,40,5,198,128, + 50,142,15,33,50,13,119,33,50,13,126,111, + 23,159,103,229,205,237,5,193,33,211,10,54, + 2,33,2,0,34,209,10,58,154,10,33,212, + 10,119,58,148,10,33,213,10,119,33,209,10, + 229,205,147,6,193,24,128,42,47,13,229,33, + 50,13,229,205,191,4,193,24,239,33,211,10, + 54,6,33,3,0,34,209,10,58,154,10,33, + 212,10,119,58,148,10,33,213,10,119,33,214, + 10,54,5,33,209,10,229,205,147,6,24,200, + 205,106,10,33,49,13,54,0,33,47,13,229, + 205,207,6,33,209,10,227,205,147,6,193,205, + 80,9,205,145,8,24,248,124,170,250,99,10, + 237,82,201,124,230,128,237,82,60,201,225,253, + 229,221,229,221,33,0,0,221,57,233,221,249, + 221,225,253,225,201,233,225,253,229,221,229,221, + 33,0,0,221,57,94,35,86,35,235,57,249, + 235,233,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0 + } ; + +#endif diff --git a/drivers/staging/appletalk/ddp.c b/drivers/staging/appletalk/ddp.c new file mode 100644 index 000000000000..940dd1908339 --- /dev/null +++ b/drivers/staging/appletalk/ddp.c @@ -0,0 +1,1981 @@ +/* + * DDP: An implementation of the AppleTalk DDP protocol for + * Ethernet 'ELAP'. + * + * Alan Cox + * + * With more than a little assistance from + * + * Wesley Craig + * + * Fixes: + * Neil Horman : Added missing device ioctls + * Michael Callahan : Made routing work + * Wesley Craig : Fix probing to listen to a + * passed node id. + * Alan Cox : Added send/recvmsg support + * Alan Cox : Moved at. to protinfo in + * socket. + * Alan Cox : Added firewall hooks. + * Alan Cox : Supports new ARPHRD_LOOPBACK + * Christer Weinigel : Routing and /proc fixes. + * Bradford Johnson : LocalTalk. + * Tom Dyas : Module support. + * Alan Cox : Hooks for PPP (based on the + * LocalTalk hook). + * Alan Cox : Posix bits + * Alan Cox/Mike Freeman : Possible fix to NBP problems + * Bradford Johnson : IP-over-DDP (experimental) + * Jay Schulist : Moved IP-over-DDP to its own + * driver file. (ipddp.c & ipddp.h) + * Jay Schulist : Made work as module with + * AppleTalk drivers, cleaned it. + * Rob Newberry : Added proxy AARP and AARP + * procfs, moved probing to AARP + * module. + * Adrian Sun/ + * Michael Zuelsdorff : fix for net.0 packets. don't + * allow illegal ether/tokentalk + * port assignment. we lose a + * valid localtalk port as a + * result. + * Arnaldo C. de Melo : Cleanup, in preparation for + * shared skb support 8) + * Arnaldo C. de Melo : Move proc stuff to atalk_proc.c, + * use seq_file + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include /* For TIOCOUTQ/INQ */ +#include +#include +#include +#include +#include +#include +#include +#include "atalk.h" +#include "../../net/core/kmap_skb.h" + +struct datalink_proto *ddp_dl, *aarp_dl; +static const struct proto_ops atalk_dgram_ops; + +/**************************************************************************\ +* * +* Handlers for the socket list. * +* * +\**************************************************************************/ + +HLIST_HEAD(atalk_sockets); +DEFINE_RWLOCK(atalk_sockets_lock); + +static inline void __atalk_insert_socket(struct sock *sk) +{ + sk_add_node(sk, &atalk_sockets); +} + +static inline void atalk_remove_socket(struct sock *sk) +{ + write_lock_bh(&atalk_sockets_lock); + sk_del_node_init(sk); + write_unlock_bh(&atalk_sockets_lock); +} + +static struct sock *atalk_search_socket(struct sockaddr_at *to, + struct atalk_iface *atif) +{ + struct sock *s; + struct hlist_node *node; + + read_lock_bh(&atalk_sockets_lock); + sk_for_each(s, node, &atalk_sockets) { + struct atalk_sock *at = at_sk(s); + + if (to->sat_port != at->src_port) + continue; + + if (to->sat_addr.s_net == ATADDR_ANYNET && + to->sat_addr.s_node == ATADDR_BCAST) + goto found; + + if (to->sat_addr.s_net == at->src_net && + (to->sat_addr.s_node == at->src_node || + to->sat_addr.s_node == ATADDR_BCAST || + to->sat_addr.s_node == ATADDR_ANYNODE)) + goto found; + + /* XXXX.0 -- we got a request for this router. make sure + * that the node is appropriately set. */ + if (to->sat_addr.s_node == ATADDR_ANYNODE && + to->sat_addr.s_net != ATADDR_ANYNET && + atif->address.s_node == at->src_node) { + to->sat_addr.s_node = atif->address.s_node; + goto found; + } + } + s = NULL; +found: + read_unlock_bh(&atalk_sockets_lock); + return s; +} + +/** + * atalk_find_or_insert_socket - Try to find a socket matching ADDR + * @sk - socket to insert in the list if it is not there already + * @sat - address to search for + * + * Try to find a socket matching ADDR in the socket list, if found then return + * it. If not, insert SK into the socket list. + * + * This entire operation must execute atomically. + */ +static struct sock *atalk_find_or_insert_socket(struct sock *sk, + struct sockaddr_at *sat) +{ + struct sock *s; + struct hlist_node *node; + struct atalk_sock *at; + + write_lock_bh(&atalk_sockets_lock); + sk_for_each(s, node, &atalk_sockets) { + at = at_sk(s); + + if (at->src_net == sat->sat_addr.s_net && + at->src_node == sat->sat_addr.s_node && + at->src_port == sat->sat_port) + goto found; + } + s = NULL; + __atalk_insert_socket(sk); /* Wheee, it's free, assign and insert. */ +found: + write_unlock_bh(&atalk_sockets_lock); + return s; +} + +static void atalk_destroy_timer(unsigned long data) +{ + struct sock *sk = (struct sock *)data; + + if (sk_has_allocations(sk)) { + sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME; + add_timer(&sk->sk_timer); + } else + sock_put(sk); +} + +static inline void atalk_destroy_socket(struct sock *sk) +{ + atalk_remove_socket(sk); + skb_queue_purge(&sk->sk_receive_queue); + + if (sk_has_allocations(sk)) { + setup_timer(&sk->sk_timer, atalk_destroy_timer, + (unsigned long)sk); + sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME; + add_timer(&sk->sk_timer); + } else + sock_put(sk); +} + +/**************************************************************************\ +* * +* Routing tables for the AppleTalk socket layer. * +* * +\**************************************************************************/ + +/* Anti-deadlock ordering is atalk_routes_lock --> iface_lock -DaveM */ +struct atalk_route *atalk_routes; +DEFINE_RWLOCK(atalk_routes_lock); + +struct atalk_iface *atalk_interfaces; +DEFINE_RWLOCK(atalk_interfaces_lock); + +/* For probing devices or in a routerless network */ +struct atalk_route atrtr_default; + +/* AppleTalk interface control */ +/* + * Drop a device. Doesn't drop any of its routes - that is the caller's + * problem. Called when we down the interface or delete the address. + */ +static void atif_drop_device(struct net_device *dev) +{ + struct atalk_iface **iface = &atalk_interfaces; + struct atalk_iface *tmp; + + write_lock_bh(&atalk_interfaces_lock); + while ((tmp = *iface) != NULL) { + if (tmp->dev == dev) { + *iface = tmp->next; + dev_put(dev); + kfree(tmp); + dev->atalk_ptr = NULL; + } else + iface = &tmp->next; + } + write_unlock_bh(&atalk_interfaces_lock); +} + +static struct atalk_iface *atif_add_device(struct net_device *dev, + struct atalk_addr *sa) +{ + struct atalk_iface *iface = kzalloc(sizeof(*iface), GFP_KERNEL); + + if (!iface) + goto out; + + dev_hold(dev); + iface->dev = dev; + dev->atalk_ptr = iface; + iface->address = *sa; + iface->status = 0; + + write_lock_bh(&atalk_interfaces_lock); + iface->next = atalk_interfaces; + atalk_interfaces = iface; + write_unlock_bh(&atalk_interfaces_lock); +out: + return iface; +} + +/* Perform phase 2 AARP probing on our tentative address */ +static int atif_probe_device(struct atalk_iface *atif) +{ + int netrange = ntohs(atif->nets.nr_lastnet) - + ntohs(atif->nets.nr_firstnet) + 1; + int probe_net = ntohs(atif->address.s_net); + int probe_node = atif->address.s_node; + int netct, nodect; + + /* Offset the network we start probing with */ + if (probe_net == ATADDR_ANYNET) { + probe_net = ntohs(atif->nets.nr_firstnet); + if (netrange) + probe_net += jiffies % netrange; + } + if (probe_node == ATADDR_ANYNODE) + probe_node = jiffies & 0xFF; + + /* Scan the networks */ + atif->status |= ATIF_PROBE; + for (netct = 0; netct <= netrange; netct++) { + /* Sweep the available nodes from a given start */ + atif->address.s_net = htons(probe_net); + for (nodect = 0; nodect < 256; nodect++) { + atif->address.s_node = (nodect + probe_node) & 0xFF; + if (atif->address.s_node > 0 && + atif->address.s_node < 254) { + /* Probe a proposed address */ + aarp_probe_network(atif); + + if (!(atif->status & ATIF_PROBE_FAIL)) { + atif->status &= ~ATIF_PROBE; + return 0; + } + } + atif->status &= ~ATIF_PROBE_FAIL; + } + probe_net++; + if (probe_net > ntohs(atif->nets.nr_lastnet)) + probe_net = ntohs(atif->nets.nr_firstnet); + } + atif->status &= ~ATIF_PROBE; + + return -EADDRINUSE; /* Network is full... */ +} + + +/* Perform AARP probing for a proxy address */ +static int atif_proxy_probe_device(struct atalk_iface *atif, + struct atalk_addr* proxy_addr) +{ + int netrange = ntohs(atif->nets.nr_lastnet) - + ntohs(atif->nets.nr_firstnet) + 1; + /* we probe the interface's network */ + int probe_net = ntohs(atif->address.s_net); + int probe_node = ATADDR_ANYNODE; /* we'll take anything */ + int netct, nodect; + + /* Offset the network we start probing with */ + if (probe_net == ATADDR_ANYNET) { + probe_net = ntohs(atif->nets.nr_firstnet); + if (netrange) + probe_net += jiffies % netrange; + } + + if (probe_node == ATADDR_ANYNODE) + probe_node = jiffies & 0xFF; + + /* Scan the networks */ + for (netct = 0; netct <= netrange; netct++) { + /* Sweep the available nodes from a given start */ + proxy_addr->s_net = htons(probe_net); + for (nodect = 0; nodect < 256; nodect++) { + proxy_addr->s_node = (nodect + probe_node) & 0xFF; + if (proxy_addr->s_node > 0 && + proxy_addr->s_node < 254) { + /* Tell AARP to probe a proposed address */ + int ret = aarp_proxy_probe_network(atif, + proxy_addr); + + if (ret != -EADDRINUSE) + return ret; + } + } + probe_net++; + if (probe_net > ntohs(atif->nets.nr_lastnet)) + probe_net = ntohs(atif->nets.nr_firstnet); + } + + return -EADDRINUSE; /* Network is full... */ +} + + +struct atalk_addr *atalk_find_dev_addr(struct net_device *dev) +{ + struct atalk_iface *iface = dev->atalk_ptr; + return iface ? &iface->address : NULL; +} + +static struct atalk_addr *atalk_find_primary(void) +{ + struct atalk_iface *fiface = NULL; + struct atalk_addr *retval; + struct atalk_iface *iface; + + /* + * Return a point-to-point interface only if + * there is no non-ptp interface available. + */ + read_lock_bh(&atalk_interfaces_lock); + for (iface = atalk_interfaces; iface; iface = iface->next) { + if (!fiface && !(iface->dev->flags & IFF_LOOPBACK)) + fiface = iface; + if (!(iface->dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))) { + retval = &iface->address; + goto out; + } + } + + if (fiface) + retval = &fiface->address; + else if (atalk_interfaces) + retval = &atalk_interfaces->address; + else + retval = NULL; +out: + read_unlock_bh(&atalk_interfaces_lock); + return retval; +} + +/* + * Find a match for 'any network' - ie any of our interfaces with that + * node number will do just nicely. + */ +static struct atalk_iface *atalk_find_anynet(int node, struct net_device *dev) +{ + struct atalk_iface *iface = dev->atalk_ptr; + + if (!iface || iface->status & ATIF_PROBE) + goto out_err; + + if (node != ATADDR_BCAST && + iface->address.s_node != node && + node != ATADDR_ANYNODE) + goto out_err; +out: + return iface; +out_err: + iface = NULL; + goto out; +} + +/* Find a match for a specific network:node pair */ +static struct atalk_iface *atalk_find_interface(__be16 net, int node) +{ + struct atalk_iface *iface; + + read_lock_bh(&atalk_interfaces_lock); + for (iface = atalk_interfaces; iface; iface = iface->next) { + if ((node == ATADDR_BCAST || + node == ATADDR_ANYNODE || + iface->address.s_node == node) && + iface->address.s_net == net && + !(iface->status & ATIF_PROBE)) + break; + + /* XXXX.0 -- net.0 returns the iface associated with net */ + if (node == ATADDR_ANYNODE && net != ATADDR_ANYNET && + ntohs(iface->nets.nr_firstnet) <= ntohs(net) && + ntohs(net) <= ntohs(iface->nets.nr_lastnet)) + break; + } + read_unlock_bh(&atalk_interfaces_lock); + return iface; +} + + +/* + * Find a route for an AppleTalk packet. This ought to get cached in + * the socket (later on...). We know about host routes and the fact + * that a route must be direct to broadcast. + */ +static struct atalk_route *atrtr_find(struct atalk_addr *target) +{ + /* + * we must search through all routes unless we find a + * host route, because some host routes might overlap + * network routes + */ + struct atalk_route *net_route = NULL; + struct atalk_route *r; + + read_lock_bh(&atalk_routes_lock); + for (r = atalk_routes; r; r = r->next) { + if (!(r->flags & RTF_UP)) + continue; + + if (r->target.s_net == target->s_net) { + if (r->flags & RTF_HOST) { + /* + * if this host route is for the target, + * the we're done + */ + if (r->target.s_node == target->s_node) + goto out; + } else + /* + * this route will work if there isn't a + * direct host route, so cache it + */ + net_route = r; + } + } + + /* + * if we found a network route but not a direct host + * route, then return it + */ + if (net_route) + r = net_route; + else if (atrtr_default.dev) + r = &atrtr_default; + else /* No route can be found */ + r = NULL; +out: + read_unlock_bh(&atalk_routes_lock); + return r; +} + + +/* + * Given an AppleTalk network, find the device to use. This can be + * a simple lookup. + */ +struct net_device *atrtr_get_dev(struct atalk_addr *sa) +{ + struct atalk_route *atr = atrtr_find(sa); + return atr ? atr->dev : NULL; +} + +/* Set up a default router */ +static void atrtr_set_default(struct net_device *dev) +{ + atrtr_default.dev = dev; + atrtr_default.flags = RTF_UP; + atrtr_default.gateway.s_net = htons(0); + atrtr_default.gateway.s_node = 0; +} + +/* + * Add a router. Basically make sure it looks valid and stuff the + * entry in the list. While it uses netranges we always set them to one + * entry to work like netatalk. + */ +static int atrtr_create(struct rtentry *r, struct net_device *devhint) +{ + struct sockaddr_at *ta = (struct sockaddr_at *)&r->rt_dst; + struct sockaddr_at *ga = (struct sockaddr_at *)&r->rt_gateway; + struct atalk_route *rt; + struct atalk_iface *iface, *riface; + int retval = -EINVAL; + + /* + * Fixme: Raise/Lower a routing change semaphore for these + * operations. + */ + + /* Validate the request */ + if (ta->sat_family != AF_APPLETALK || + (!devhint && ga->sat_family != AF_APPLETALK)) + goto out; + + /* Now walk the routing table and make our decisions */ + write_lock_bh(&atalk_routes_lock); + for (rt = atalk_routes; rt; rt = rt->next) { + if (r->rt_flags != rt->flags) + continue; + + if (ta->sat_addr.s_net == rt->target.s_net) { + if (!(rt->flags & RTF_HOST)) + break; + if (ta->sat_addr.s_node == rt->target.s_node) + break; + } + } + + if (!devhint) { + riface = NULL; + + read_lock_bh(&atalk_interfaces_lock); + for (iface = atalk_interfaces; iface; iface = iface->next) { + if (!riface && + ntohs(ga->sat_addr.s_net) >= + ntohs(iface->nets.nr_firstnet) && + ntohs(ga->sat_addr.s_net) <= + ntohs(iface->nets.nr_lastnet)) + riface = iface; + + if (ga->sat_addr.s_net == iface->address.s_net && + ga->sat_addr.s_node == iface->address.s_node) + riface = iface; + } + read_unlock_bh(&atalk_interfaces_lock); + + retval = -ENETUNREACH; + if (!riface) + goto out_unlock; + + devhint = riface->dev; + } + + if (!rt) { + rt = kzalloc(sizeof(*rt), GFP_ATOMIC); + + retval = -ENOBUFS; + if (!rt) + goto out_unlock; + + rt->next = atalk_routes; + atalk_routes = rt; + } + + /* Fill in the routing entry */ + rt->target = ta->sat_addr; + dev_hold(devhint); + rt->dev = devhint; + rt->flags = r->rt_flags; + rt->gateway = ga->sat_addr; + + retval = 0; +out_unlock: + write_unlock_bh(&atalk_routes_lock); +out: + return retval; +} + +/* Delete a route. Find it and discard it */ +static int atrtr_delete(struct atalk_addr * addr) +{ + struct atalk_route **r = &atalk_routes; + int retval = 0; + struct atalk_route *tmp; + + write_lock_bh(&atalk_routes_lock); + while ((tmp = *r) != NULL) { + if (tmp->target.s_net == addr->s_net && + (!(tmp->flags&RTF_GATEWAY) || + tmp->target.s_node == addr->s_node)) { + *r = tmp->next; + dev_put(tmp->dev); + kfree(tmp); + goto out; + } + r = &tmp->next; + } + retval = -ENOENT; +out: + write_unlock_bh(&atalk_routes_lock); + return retval; +} + +/* + * Called when a device is downed. Just throw away any routes + * via it. + */ +static void atrtr_device_down(struct net_device *dev) +{ + struct atalk_route **r = &atalk_routes; + struct atalk_route *tmp; + + write_lock_bh(&atalk_routes_lock); + while ((tmp = *r) != NULL) { + if (tmp->dev == dev) { + *r = tmp->next; + dev_put(dev); + kfree(tmp); + } else + r = &tmp->next; + } + write_unlock_bh(&atalk_routes_lock); + + if (atrtr_default.dev == dev) + atrtr_set_default(NULL); +} + +/* Actually down the interface */ +static inline void atalk_dev_down(struct net_device *dev) +{ + atrtr_device_down(dev); /* Remove all routes for the device */ + aarp_device_down(dev); /* Remove AARP entries for the device */ + atif_drop_device(dev); /* Remove the device */ +} + +/* + * A device event has occurred. Watch for devices going down and + * delete our use of them (iface and route). + */ +static int ddp_device_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + struct net_device *dev = ptr; + + if (!net_eq(dev_net(dev), &init_net)) + return NOTIFY_DONE; + + if (event == NETDEV_DOWN) + /* Discard any use of this */ + atalk_dev_down(dev); + + return NOTIFY_DONE; +} + +/* ioctl calls. Shouldn't even need touching */ +/* Device configuration ioctl calls */ +static int atif_ioctl(int cmd, void __user *arg) +{ + static char aarp_mcast[6] = { 0x09, 0x00, 0x00, 0xFF, 0xFF, 0xFF }; + struct ifreq atreq; + struct atalk_netrange *nr; + struct sockaddr_at *sa; + struct net_device *dev; + struct atalk_iface *atif; + int ct; + int limit; + struct rtentry rtdef; + int add_route; + + if (copy_from_user(&atreq, arg, sizeof(atreq))) + return -EFAULT; + + dev = __dev_get_by_name(&init_net, atreq.ifr_name); + if (!dev) + return -ENODEV; + + sa = (struct sockaddr_at *)&atreq.ifr_addr; + atif = atalk_find_dev(dev); + + switch (cmd) { + case SIOCSIFADDR: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (sa->sat_family != AF_APPLETALK) + return -EINVAL; + if (dev->type != ARPHRD_ETHER && + dev->type != ARPHRD_LOOPBACK && + dev->type != ARPHRD_LOCALTLK && + dev->type != ARPHRD_PPP) + return -EPROTONOSUPPORT; + + nr = (struct atalk_netrange *)&sa->sat_zero[0]; + add_route = 1; + + /* + * if this is a point-to-point iface, and we already + * have an iface for this AppleTalk address, then we + * should not add a route + */ + if ((dev->flags & IFF_POINTOPOINT) && + atalk_find_interface(sa->sat_addr.s_net, + sa->sat_addr.s_node)) { + printk(KERN_DEBUG "AppleTalk: point-to-point " + "interface added with " + "existing address\n"); + add_route = 0; + } + + /* + * Phase 1 is fine on LocalTalk but we don't do + * EtherTalk phase 1. Anyone wanting to add it go ahead. + */ + if (dev->type == ARPHRD_ETHER && nr->nr_phase != 2) + return -EPROTONOSUPPORT; + if (sa->sat_addr.s_node == ATADDR_BCAST || + sa->sat_addr.s_node == 254) + return -EINVAL; + if (atif) { + /* Already setting address */ + if (atif->status & ATIF_PROBE) + return -EBUSY; + + atif->address.s_net = sa->sat_addr.s_net; + atif->address.s_node = sa->sat_addr.s_node; + atrtr_device_down(dev); /* Flush old routes */ + } else { + atif = atif_add_device(dev, &sa->sat_addr); + if (!atif) + return -ENOMEM; + } + atif->nets = *nr; + + /* + * Check if the chosen address is used. If so we + * error and atalkd will try another. + */ + + if (!(dev->flags & IFF_LOOPBACK) && + !(dev->flags & IFF_POINTOPOINT) && + atif_probe_device(atif) < 0) { + atif_drop_device(dev); + return -EADDRINUSE; + } + + /* Hey it worked - add the direct routes */ + sa = (struct sockaddr_at *)&rtdef.rt_gateway; + sa->sat_family = AF_APPLETALK; + sa->sat_addr.s_net = atif->address.s_net; + sa->sat_addr.s_node = atif->address.s_node; + sa = (struct sockaddr_at *)&rtdef.rt_dst; + rtdef.rt_flags = RTF_UP; + sa->sat_family = AF_APPLETALK; + sa->sat_addr.s_node = ATADDR_ANYNODE; + if (dev->flags & IFF_LOOPBACK || + dev->flags & IFF_POINTOPOINT) + rtdef.rt_flags |= RTF_HOST; + + /* Routerless initial state */ + if (nr->nr_firstnet == htons(0) && + nr->nr_lastnet == htons(0xFFFE)) { + sa->sat_addr.s_net = atif->address.s_net; + atrtr_create(&rtdef, dev); + atrtr_set_default(dev); + } else { + limit = ntohs(nr->nr_lastnet); + if (limit - ntohs(nr->nr_firstnet) > 4096) { + printk(KERN_WARNING "Too many routes/" + "iface.\n"); + return -EINVAL; + } + if (add_route) + for (ct = ntohs(nr->nr_firstnet); + ct <= limit; ct++) { + sa->sat_addr.s_net = htons(ct); + atrtr_create(&rtdef, dev); + } + } + dev_mc_add_global(dev, aarp_mcast); + return 0; + + case SIOCGIFADDR: + if (!atif) + return -EADDRNOTAVAIL; + + sa->sat_family = AF_APPLETALK; + sa->sat_addr = atif->address; + break; + + case SIOCGIFBRDADDR: + if (!atif) + return -EADDRNOTAVAIL; + + sa->sat_family = AF_APPLETALK; + sa->sat_addr.s_net = atif->address.s_net; + sa->sat_addr.s_node = ATADDR_BCAST; + break; + + case SIOCATALKDIFADDR: + case SIOCDIFADDR: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (sa->sat_family != AF_APPLETALK) + return -EINVAL; + atalk_dev_down(dev); + break; + + case SIOCSARP: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (sa->sat_family != AF_APPLETALK) + return -EINVAL; + /* + * for now, we only support proxy AARP on ELAP; + * we should be able to do it for LocalTalk, too. + */ + if (dev->type != ARPHRD_ETHER) + return -EPROTONOSUPPORT; + + /* + * atif points to the current interface on this network; + * we aren't concerned about its current status (at + * least for now), but it has all the settings about + * the network we're going to probe. Consequently, it + * must exist. + */ + if (!atif) + return -EADDRNOTAVAIL; + + nr = (struct atalk_netrange *)&(atif->nets); + /* + * Phase 1 is fine on Localtalk but we don't do + * Ethertalk phase 1. Anyone wanting to add it go ahead. + */ + if (dev->type == ARPHRD_ETHER && nr->nr_phase != 2) + return -EPROTONOSUPPORT; + + if (sa->sat_addr.s_node == ATADDR_BCAST || + sa->sat_addr.s_node == 254) + return -EINVAL; + + /* + * Check if the chosen address is used. If so we + * error and ATCP will try another. + */ + if (atif_proxy_probe_device(atif, &(sa->sat_addr)) < 0) + return -EADDRINUSE; + + /* + * We now have an address on the local network, and + * the AARP code will defend it for us until we take it + * down. We don't set up any routes right now, because + * ATCP will install them manually via SIOCADDRT. + */ + break; + + case SIOCDARP: + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (sa->sat_family != AF_APPLETALK) + return -EINVAL; + if (!atif) + return -EADDRNOTAVAIL; + + /* give to aarp module to remove proxy entry */ + aarp_proxy_remove(atif->dev, &(sa->sat_addr)); + return 0; + } + + return copy_to_user(arg, &atreq, sizeof(atreq)) ? -EFAULT : 0; +} + +/* Routing ioctl() calls */ +static int atrtr_ioctl(unsigned int cmd, void __user *arg) +{ + struct rtentry rt; + + if (copy_from_user(&rt, arg, sizeof(rt))) + return -EFAULT; + + switch (cmd) { + case SIOCDELRT: + if (rt.rt_dst.sa_family != AF_APPLETALK) + return -EINVAL; + return atrtr_delete(&((struct sockaddr_at *) + &rt.rt_dst)->sat_addr); + + case SIOCADDRT: { + struct net_device *dev = NULL; + if (rt.rt_dev) { + char name[IFNAMSIZ]; + if (copy_from_user(name, rt.rt_dev, IFNAMSIZ-1)) + return -EFAULT; + name[IFNAMSIZ-1] = '\0'; + dev = __dev_get_by_name(&init_net, name); + if (!dev) + return -ENODEV; + } + return atrtr_create(&rt, dev); + } + } + return -EINVAL; +} + +/**************************************************************************\ +* * +* Handling for system calls applied via the various interfaces to an * +* AppleTalk socket object. * +* * +\**************************************************************************/ + +/* + * Checksum: This is 'optional'. It's quite likely also a good + * candidate for assembler hackery 8) + */ +static unsigned long atalk_sum_partial(const unsigned char *data, + int len, unsigned long sum) +{ + /* This ought to be unwrapped neatly. I'll trust gcc for now */ + while (len--) { + sum += *data++; + sum = rol16(sum, 1); + } + return sum; +} + +/* Checksum skb data -- similar to skb_checksum */ +static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset, + int len, unsigned long sum) +{ + int start = skb_headlen(skb); + struct sk_buff *frag_iter; + int i, copy; + + /* checksum stuff in header space */ + if ( (copy = start - offset) > 0) { + if (copy > len) + copy = len; + sum = atalk_sum_partial(skb->data + offset, copy, sum); + if ( (len -= copy) == 0) + return sum; + + offset += copy; + } + + /* checksum stuff in frags */ + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + int end; + + WARN_ON(start > offset + len); + + end = start + skb_shinfo(skb)->frags[i].size; + if ((copy = end - offset) > 0) { + u8 *vaddr; + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + if (copy > len) + copy = len; + vaddr = kmap_skb_frag(frag); + sum = atalk_sum_partial(vaddr + frag->page_offset + + offset - start, copy, sum); + kunmap_skb_frag(vaddr); + + if (!(len -= copy)) + return sum; + offset += copy; + } + start = end; + } + + skb_walk_frags(skb, frag_iter) { + int end; + + WARN_ON(start > offset + len); + + end = start + frag_iter->len; + if ((copy = end - offset) > 0) { + if (copy > len) + copy = len; + sum = atalk_sum_skb(frag_iter, offset - start, + copy, sum); + if ((len -= copy) == 0) + return sum; + offset += copy; + } + start = end; + } + + BUG_ON(len > 0); + + return sum; +} + +static __be16 atalk_checksum(const struct sk_buff *skb, int len) +{ + unsigned long sum; + + /* skip header 4 bytes */ + sum = atalk_sum_skb(skb, 4, len-4, 0); + + /* Use 0xFFFF for 0. 0 itself means none */ + return sum ? htons((unsigned short)sum) : htons(0xFFFF); +} + +static struct proto ddp_proto = { + .name = "DDP", + .owner = THIS_MODULE, + .obj_size = sizeof(struct atalk_sock), +}; + +/* + * Create a socket. Initialise the socket, blank the addresses + * set the state. + */ +static int atalk_create(struct net *net, struct socket *sock, int protocol, + int kern) +{ + struct sock *sk; + int rc = -ESOCKTNOSUPPORT; + + if (!net_eq(net, &init_net)) + return -EAFNOSUPPORT; + + /* + * We permit SOCK_DGRAM and RAW is an extension. It is trivial to do + * and gives you the full ELAP frame. Should be handy for CAP 8) + */ + if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM) + goto out; + rc = -ENOMEM; + sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto); + if (!sk) + goto out; + rc = 0; + sock->ops = &atalk_dgram_ops; + sock_init_data(sock, sk); + + /* Checksums on by default */ + sock_set_flag(sk, SOCK_ZAPPED); +out: + return rc; +} + +/* Free a socket. No work needed */ +static int atalk_release(struct socket *sock) +{ + struct sock *sk = sock->sk; + + lock_kernel(); + if (sk) { + sock_orphan(sk); + sock->sk = NULL; + atalk_destroy_socket(sk); + } + unlock_kernel(); + return 0; +} + +/** + * atalk_pick_and_bind_port - Pick a source port when one is not given + * @sk - socket to insert into the tables + * @sat - address to search for + * + * Pick a source port when one is not given. If we can find a suitable free + * one, we insert the socket into the tables using it. + * + * This whole operation must be atomic. + */ +static int atalk_pick_and_bind_port(struct sock *sk, struct sockaddr_at *sat) +{ + int retval; + + write_lock_bh(&atalk_sockets_lock); + + for (sat->sat_port = ATPORT_RESERVED; + sat->sat_port < ATPORT_LAST; + sat->sat_port++) { + struct sock *s; + struct hlist_node *node; + + sk_for_each(s, node, &atalk_sockets) { + struct atalk_sock *at = at_sk(s); + + if (at->src_net == sat->sat_addr.s_net && + at->src_node == sat->sat_addr.s_node && + at->src_port == sat->sat_port) + goto try_next_port; + } + + /* Wheee, it's free, assign and insert. */ + __atalk_insert_socket(sk); + at_sk(sk)->src_port = sat->sat_port; + retval = 0; + goto out; + +try_next_port:; + } + + retval = -EBUSY; +out: + write_unlock_bh(&atalk_sockets_lock); + return retval; +} + +static int atalk_autobind(struct sock *sk) +{ + struct atalk_sock *at = at_sk(sk); + struct sockaddr_at sat; + struct atalk_addr *ap = atalk_find_primary(); + int n = -EADDRNOTAVAIL; + + if (!ap || ap->s_net == htons(ATADDR_ANYNET)) + goto out; + + at->src_net = sat.sat_addr.s_net = ap->s_net; + at->src_node = sat.sat_addr.s_node = ap->s_node; + + n = atalk_pick_and_bind_port(sk, &sat); + if (!n) + sock_reset_flag(sk, SOCK_ZAPPED); +out: + return n; +} + +/* Set the address 'our end' of the connection */ +static int atalk_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) +{ + struct sockaddr_at *addr = (struct sockaddr_at *)uaddr; + struct sock *sk = sock->sk; + struct atalk_sock *at = at_sk(sk); + int err; + + if (!sock_flag(sk, SOCK_ZAPPED) || + addr_len != sizeof(struct sockaddr_at)) + return -EINVAL; + + if (addr->sat_family != AF_APPLETALK) + return -EAFNOSUPPORT; + + lock_kernel(); + if (addr->sat_addr.s_net == htons(ATADDR_ANYNET)) { + struct atalk_addr *ap = atalk_find_primary(); + + err = -EADDRNOTAVAIL; + if (!ap) + goto out; + + at->src_net = addr->sat_addr.s_net = ap->s_net; + at->src_node = addr->sat_addr.s_node= ap->s_node; + } else { + err = -EADDRNOTAVAIL; + if (!atalk_find_interface(addr->sat_addr.s_net, + addr->sat_addr.s_node)) + goto out; + + at->src_net = addr->sat_addr.s_net; + at->src_node = addr->sat_addr.s_node; + } + + if (addr->sat_port == ATADDR_ANYPORT) { + err = atalk_pick_and_bind_port(sk, addr); + + if (err < 0) + goto out; + } else { + at->src_port = addr->sat_port; + + err = -EADDRINUSE; + if (atalk_find_or_insert_socket(sk, addr)) + goto out; + } + + sock_reset_flag(sk, SOCK_ZAPPED); + err = 0; +out: + unlock_kernel(); + return err; +} + +/* Set the address we talk to */ +static int atalk_connect(struct socket *sock, struct sockaddr *uaddr, + int addr_len, int flags) +{ + struct sock *sk = sock->sk; + struct atalk_sock *at = at_sk(sk); + struct sockaddr_at *addr; + int err; + + sk->sk_state = TCP_CLOSE; + sock->state = SS_UNCONNECTED; + + if (addr_len != sizeof(*addr)) + return -EINVAL; + + addr = (struct sockaddr_at *)uaddr; + + if (addr->sat_family != AF_APPLETALK) + return -EAFNOSUPPORT; + + if (addr->sat_addr.s_node == ATADDR_BCAST && + !sock_flag(sk, SOCK_BROADCAST)) { +#if 1 + printk(KERN_WARNING "%s is broken and did not set " + "SO_BROADCAST. It will break when 2.2 is " + "released.\n", + current->comm); +#else + return -EACCES; +#endif + } + + lock_kernel(); + err = -EBUSY; + if (sock_flag(sk, SOCK_ZAPPED)) + if (atalk_autobind(sk) < 0) + goto out; + + err = -ENETUNREACH; + if (!atrtr_get_dev(&addr->sat_addr)) + goto out; + + at->dest_port = addr->sat_port; + at->dest_net = addr->sat_addr.s_net; + at->dest_node = addr->sat_addr.s_node; + + sock->state = SS_CONNECTED; + sk->sk_state = TCP_ESTABLISHED; + err = 0; +out: + unlock_kernel(); + return err; +} + +/* + * Find the name of an AppleTalk socket. Just copy the right + * fields into the sockaddr. + */ +static int atalk_getname(struct socket *sock, struct sockaddr *uaddr, + int *uaddr_len, int peer) +{ + struct sockaddr_at sat; + struct sock *sk = sock->sk; + struct atalk_sock *at = at_sk(sk); + int err; + + lock_kernel(); + err = -ENOBUFS; + if (sock_flag(sk, SOCK_ZAPPED)) + if (atalk_autobind(sk) < 0) + goto out; + + *uaddr_len = sizeof(struct sockaddr_at); + memset(&sat.sat_zero, 0, sizeof(sat.sat_zero)); + + if (peer) { + err = -ENOTCONN; + if (sk->sk_state != TCP_ESTABLISHED) + goto out; + + sat.sat_addr.s_net = at->dest_net; + sat.sat_addr.s_node = at->dest_node; + sat.sat_port = at->dest_port; + } else { + sat.sat_addr.s_net = at->src_net; + sat.sat_addr.s_node = at->src_node; + sat.sat_port = at->src_port; + } + + err = 0; + sat.sat_family = AF_APPLETALK; + memcpy(uaddr, &sat, sizeof(sat)); + +out: + unlock_kernel(); + return err; +} + +static unsigned int atalk_poll(struct file *file, struct socket *sock, + poll_table *wait) +{ + int err; + lock_kernel(); + err = datagram_poll(file, sock, wait); + unlock_kernel(); + return err; +} + +#if defined(CONFIG_IPDDP) || defined(CONFIG_IPDDP_MODULE) +static __inline__ int is_ip_over_ddp(struct sk_buff *skb) +{ + return skb->data[12] == 22; +} + +static int handle_ip_over_ddp(struct sk_buff *skb) +{ + struct net_device *dev = __dev_get_by_name(&init_net, "ipddp0"); + struct net_device_stats *stats; + + /* This needs to be able to handle ipddp"N" devices */ + if (!dev) { + kfree_skb(skb); + return NET_RX_DROP; + } + + skb->protocol = htons(ETH_P_IP); + skb_pull(skb, 13); + skb->dev = dev; + skb_reset_transport_header(skb); + + stats = netdev_priv(dev); + stats->rx_packets++; + stats->rx_bytes += skb->len + 13; + return netif_rx(skb); /* Send the SKB up to a higher place. */ +} +#else +/* make it easy for gcc to optimize this test out, i.e. kill the code */ +#define is_ip_over_ddp(skb) 0 +#define handle_ip_over_ddp(skb) 0 +#endif + +static int atalk_route_packet(struct sk_buff *skb, struct net_device *dev, + struct ddpehdr *ddp, __u16 len_hops, int origlen) +{ + struct atalk_route *rt; + struct atalk_addr ta; + + /* + * Don't route multicast, etc., packets, or packets sent to "this + * network" + */ + if (skb->pkt_type != PACKET_HOST || !ddp->deh_dnet) { + /* + * FIXME: + * + * Can it ever happen that a packet is from a PPP iface and + * needs to be broadcast onto the default network? + */ + if (dev->type == ARPHRD_PPP) + printk(KERN_DEBUG "AppleTalk: didn't forward broadcast " + "packet received from PPP iface\n"); + goto free_it; + } + + ta.s_net = ddp->deh_dnet; + ta.s_node = ddp->deh_dnode; + + /* Route the packet */ + rt = atrtr_find(&ta); + /* increment hops count */ + len_hops += 1 << 10; + if (!rt || !(len_hops & (15 << 10))) + goto free_it; + + /* FIXME: use skb->cb to be able to use shared skbs */ + + /* + * Route goes through another gateway, so set the target to the + * gateway instead. + */ + + if (rt->flags & RTF_GATEWAY) { + ta.s_net = rt->gateway.s_net; + ta.s_node = rt->gateway.s_node; + } + + /* Fix up skb->len field */ + skb_trim(skb, min_t(unsigned int, origlen, + (rt->dev->hard_header_len + + ddp_dl->header_length + (len_hops & 1023)))); + + /* FIXME: use skb->cb to be able to use shared skbs */ + ddp->deh_len_hops = htons(len_hops); + + /* + * Send the buffer onwards + * + * Now we must always be careful. If it's come from LocalTalk to + * EtherTalk it might not fit + * + * Order matters here: If a packet has to be copied to make a new + * headroom (rare hopefully) then it won't need unsharing. + * + * Note. ddp-> becomes invalid at the realloc. + */ + if (skb_headroom(skb) < 22) { + /* 22 bytes - 12 ether, 2 len, 3 802.2 5 snap */ + struct sk_buff *nskb = skb_realloc_headroom(skb, 32); + kfree_skb(skb); + skb = nskb; + } else + skb = skb_unshare(skb, GFP_ATOMIC); + + /* + * If the buffer didn't vanish into the lack of space bitbucket we can + * send it. + */ + if (skb == NULL) + goto drop; + + if (aarp_send_ddp(rt->dev, skb, &ta, NULL) == NET_XMIT_DROP) + return NET_RX_DROP; + return NET_RX_SUCCESS; +free_it: + kfree_skb(skb); +drop: + return NET_RX_DROP; +} + +/** + * atalk_rcv - Receive a packet (in skb) from device dev + * @skb - packet received + * @dev - network device where the packet comes from + * @pt - packet type + * + * Receive a packet (in skb) from device dev. This has come from the SNAP + * decoder, and on entry skb->transport_header is the DDP header, skb->len + * is the DDP header, skb->len is the DDP length. The physical headers + * have been extracted. PPP should probably pass frames marked as for this + * layer. [ie ARPHRD_ETHERTALK] + */ +static int atalk_rcv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *pt, struct net_device *orig_dev) +{ + struct ddpehdr *ddp; + struct sock *sock; + struct atalk_iface *atif; + struct sockaddr_at tosat; + int origlen; + __u16 len_hops; + + if (!net_eq(dev_net(dev), &init_net)) + goto drop; + + /* Don't mangle buffer if shared */ + if (!(skb = skb_share_check(skb, GFP_ATOMIC))) + goto out; + + /* Size check and make sure header is contiguous */ + if (!pskb_may_pull(skb, sizeof(*ddp))) + goto drop; + + ddp = ddp_hdr(skb); + + len_hops = ntohs(ddp->deh_len_hops); + + /* Trim buffer in case of stray trailing data */ + origlen = skb->len; + skb_trim(skb, min_t(unsigned int, skb->len, len_hops & 1023)); + + /* + * Size check to see if ddp->deh_len was crap + * (Otherwise we'll detonate most spectacularly + * in the middle of atalk_checksum() or recvmsg()). + */ + if (skb->len < sizeof(*ddp) || skb->len < (len_hops & 1023)) { + pr_debug("AppleTalk: dropping corrupted frame (deh_len=%u, " + "skb->len=%u)\n", len_hops & 1023, skb->len); + goto drop; + } + + /* + * Any checksums. Note we don't do htons() on this == is assumed to be + * valid for net byte orders all over the networking code... + */ + if (ddp->deh_sum && + atalk_checksum(skb, len_hops & 1023) != ddp->deh_sum) + /* Not a valid AppleTalk frame - dustbin time */ + goto drop; + + /* Check the packet is aimed at us */ + if (!ddp->deh_dnet) /* Net 0 is 'this network' */ + atif = atalk_find_anynet(ddp->deh_dnode, dev); + else + atif = atalk_find_interface(ddp->deh_dnet, ddp->deh_dnode); + + if (!atif) { + /* Not ours, so we route the packet via the correct + * AppleTalk iface + */ + return atalk_route_packet(skb, dev, ddp, len_hops, origlen); + } + + /* if IP over DDP is not selected this code will be optimized out */ + if (is_ip_over_ddp(skb)) + return handle_ip_over_ddp(skb); + /* + * Which socket - atalk_search_socket() looks for a *full match* + * of the tuple. + */ + tosat.sat_addr.s_net = ddp->deh_dnet; + tosat.sat_addr.s_node = ddp->deh_dnode; + tosat.sat_port = ddp->deh_dport; + + sock = atalk_search_socket(&tosat, atif); + if (!sock) /* But not one of our sockets */ + goto drop; + + /* Queue packet (standard) */ + skb->sk = sock; + + if (sock_queue_rcv_skb(sock, skb) < 0) + goto drop; + + return NET_RX_SUCCESS; + +drop: + kfree_skb(skb); +out: + return NET_RX_DROP; + +} + +/* + * Receive a LocalTalk frame. We make some demands on the caller here. + * Caller must provide enough headroom on the packet to pull the short + * header and append a long one. + */ +static int ltalk_rcv(struct sk_buff *skb, struct net_device *dev, + struct packet_type *pt, struct net_device *orig_dev) +{ + if (!net_eq(dev_net(dev), &init_net)) + goto freeit; + + /* Expand any short form frames */ + if (skb_mac_header(skb)[2] == 1) { + struct ddpehdr *ddp; + /* Find our address */ + struct atalk_addr *ap = atalk_find_dev_addr(dev); + + if (!ap || skb->len < sizeof(__be16) || skb->len > 1023) + goto freeit; + + /* Don't mangle buffer if shared */ + if (!(skb = skb_share_check(skb, GFP_ATOMIC))) + return 0; + + /* + * The push leaves us with a ddephdr not an shdr, and + * handily the port bytes in the right place preset. + */ + ddp = (struct ddpehdr *) skb_push(skb, sizeof(*ddp) - 4); + + /* Now fill in the long header */ + + /* + * These two first. The mac overlays the new source/dest + * network information so we MUST copy these before + * we write the network numbers ! + */ + + ddp->deh_dnode = skb_mac_header(skb)[0]; /* From physical header */ + ddp->deh_snode = skb_mac_header(skb)[1]; /* From physical header */ + + ddp->deh_dnet = ap->s_net; /* Network number */ + ddp->deh_snet = ap->s_net; + ddp->deh_sum = 0; /* No checksum */ + /* + * Not sure about this bit... + */ + /* Non routable, so force a drop if we slip up later */ + ddp->deh_len_hops = htons(skb->len + (DDP_MAXHOPS << 10)); + } + skb_reset_transport_header(skb); + + return atalk_rcv(skb, dev, pt, orig_dev); +freeit: + kfree_skb(skb); + return 0; +} + +static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, + size_t len) +{ + struct sock *sk = sock->sk; + struct atalk_sock *at = at_sk(sk); + struct sockaddr_at *usat = (struct sockaddr_at *)msg->msg_name; + int flags = msg->msg_flags; + int loopback = 0; + struct sockaddr_at local_satalk, gsat; + struct sk_buff *skb; + struct net_device *dev; + struct ddpehdr *ddp; + int size; + struct atalk_route *rt; + int err; + + if (flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT)) + return -EINVAL; + + if (len > DDP_MAXSZ) + return -EMSGSIZE; + + lock_kernel(); + if (usat) { + err = -EBUSY; + if (sock_flag(sk, SOCK_ZAPPED)) + if (atalk_autobind(sk) < 0) + goto out; + + err = -EINVAL; + if (msg->msg_namelen < sizeof(*usat) || + usat->sat_family != AF_APPLETALK) + goto out; + + err = -EPERM; + /* netatalk didn't implement this check */ + if (usat->sat_addr.s_node == ATADDR_BCAST && + !sock_flag(sk, SOCK_BROADCAST)) { + goto out; + } + } else { + err = -ENOTCONN; + if (sk->sk_state != TCP_ESTABLISHED) + goto out; + usat = &local_satalk; + usat->sat_family = AF_APPLETALK; + usat->sat_port = at->dest_port; + usat->sat_addr.s_node = at->dest_node; + usat->sat_addr.s_net = at->dest_net; + } + + /* Build a packet */ + SOCK_DEBUG(sk, "SK %p: Got address.\n", sk); + + /* For headers */ + size = sizeof(struct ddpehdr) + len + ddp_dl->header_length; + + if (usat->sat_addr.s_net || usat->sat_addr.s_node == ATADDR_ANYNODE) { + rt = atrtr_find(&usat->sat_addr); + } else { + struct atalk_addr at_hint; + + at_hint.s_node = 0; + at_hint.s_net = at->src_net; + + rt = atrtr_find(&at_hint); + } + err = ENETUNREACH; + if (!rt) + goto out; + + dev = rt->dev; + + SOCK_DEBUG(sk, "SK %p: Size needed %d, device %s\n", + sk, size, dev->name); + + size += dev->hard_header_len; + skb = sock_alloc_send_skb(sk, size, (flags & MSG_DONTWAIT), &err); + if (!skb) + goto out; + + skb->sk = sk; + skb_reserve(skb, ddp_dl->header_length); + skb_reserve(skb, dev->hard_header_len); + skb->dev = dev; + + SOCK_DEBUG(sk, "SK %p: Begin build.\n", sk); + + ddp = (struct ddpehdr *)skb_put(skb, sizeof(struct ddpehdr)); + ddp->deh_len_hops = htons(len + sizeof(*ddp)); + ddp->deh_dnet = usat->sat_addr.s_net; + ddp->deh_snet = at->src_net; + ddp->deh_dnode = usat->sat_addr.s_node; + ddp->deh_snode = at->src_node; + ddp->deh_dport = usat->sat_port; + ddp->deh_sport = at->src_port; + + SOCK_DEBUG(sk, "SK %p: Copy user data (%Zd bytes).\n", sk, len); + + err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len); + if (err) { + kfree_skb(skb); + err = -EFAULT; + goto out; + } + + if (sk->sk_no_check == 1) + ddp->deh_sum = 0; + else + ddp->deh_sum = atalk_checksum(skb, len + sizeof(*ddp)); + + /* + * Loopback broadcast packets to non gateway targets (ie routes + * to group we are in) + */ + if (ddp->deh_dnode == ATADDR_BCAST && + !(rt->flags & RTF_GATEWAY) && !(dev->flags & IFF_LOOPBACK)) { + struct sk_buff *skb2 = skb_copy(skb, GFP_KERNEL); + + if (skb2) { + loopback = 1; + SOCK_DEBUG(sk, "SK %p: send out(copy).\n", sk); + /* + * If it fails it is queued/sent above in the aarp queue + */ + aarp_send_ddp(dev, skb2, &usat->sat_addr, NULL); + } + } + + if (dev->flags & IFF_LOOPBACK || loopback) { + SOCK_DEBUG(sk, "SK %p: Loop back.\n", sk); + /* loop back */ + skb_orphan(skb); + if (ddp->deh_dnode == ATADDR_BCAST) { + struct atalk_addr at_lo; + + at_lo.s_node = 0; + at_lo.s_net = 0; + + rt = atrtr_find(&at_lo); + if (!rt) { + kfree_skb(skb); + err = -ENETUNREACH; + goto out; + } + dev = rt->dev; + skb->dev = dev; + } + ddp_dl->request(ddp_dl, skb, dev->dev_addr); + } else { + SOCK_DEBUG(sk, "SK %p: send out.\n", sk); + if (rt->flags & RTF_GATEWAY) { + gsat.sat_addr = rt->gateway; + usat = &gsat; + } + + /* + * If it fails it is queued/sent above in the aarp queue + */ + aarp_send_ddp(dev, skb, &usat->sat_addr, NULL); + } + SOCK_DEBUG(sk, "SK %p: Done write (%Zd).\n", sk, len); + +out: + unlock_kernel(); + return err ? : len; +} + +static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, + size_t size, int flags) +{ + struct sock *sk = sock->sk; + struct sockaddr_at *sat = (struct sockaddr_at *)msg->msg_name; + struct ddpehdr *ddp; + int copied = 0; + int offset = 0; + int err = 0; + struct sk_buff *skb; + + lock_kernel(); + skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, + flags & MSG_DONTWAIT, &err); + if (!skb) + goto out; + + /* FIXME: use skb->cb to be able to use shared skbs */ + ddp = ddp_hdr(skb); + copied = ntohs(ddp->deh_len_hops) & 1023; + + if (sk->sk_type != SOCK_RAW) { + offset = sizeof(*ddp); + copied -= offset; + } + + if (copied > size) { + copied = size; + msg->msg_flags |= MSG_TRUNC; + } + err = skb_copy_datagram_iovec(skb, offset, msg->msg_iov, copied); + + if (!err) { + if (sat) { + sat->sat_family = AF_APPLETALK; + sat->sat_port = ddp->deh_sport; + sat->sat_addr.s_node = ddp->deh_snode; + sat->sat_addr.s_net = ddp->deh_snet; + } + msg->msg_namelen = sizeof(*sat); + } + + skb_free_datagram(sk, skb); /* Free the datagram. */ + +out: + unlock_kernel(); + return err ? : copied; +} + + +/* + * AppleTalk ioctl calls. + */ +static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) +{ + int rc = -ENOIOCTLCMD; + struct sock *sk = sock->sk; + void __user *argp = (void __user *)arg; + + switch (cmd) { + /* Protocol layer */ + case TIOCOUTQ: { + long amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); + + if (amount < 0) + amount = 0; + rc = put_user(amount, (int __user *)argp); + break; + } + case TIOCINQ: { + /* + * These two are safe on a single CPU system as only + * user tasks fiddle here + */ + struct sk_buff *skb = skb_peek(&sk->sk_receive_queue); + long amount = 0; + + if (skb) + amount = skb->len - sizeof(struct ddpehdr); + rc = put_user(amount, (int __user *)argp); + break; + } + case SIOCGSTAMP: + rc = sock_get_timestamp(sk, argp); + break; + case SIOCGSTAMPNS: + rc = sock_get_timestampns(sk, argp); + break; + /* Routing */ + case SIOCADDRT: + case SIOCDELRT: + rc = -EPERM; + if (capable(CAP_NET_ADMIN)) + rc = atrtr_ioctl(cmd, argp); + break; + /* Interface */ + case SIOCGIFADDR: + case SIOCSIFADDR: + case SIOCGIFBRDADDR: + case SIOCATALKDIFADDR: + case SIOCDIFADDR: + case SIOCSARP: /* proxy AARP */ + case SIOCDARP: /* proxy AARP */ + rtnl_lock(); + rc = atif_ioctl(cmd, argp); + rtnl_unlock(); + break; + } + + return rc; +} + + +#ifdef CONFIG_COMPAT +static int atalk_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) +{ + /* + * SIOCATALKDIFADDR is a SIOCPROTOPRIVATE ioctl number, so we + * cannot handle it in common code. The data we access if ifreq + * here is compatible, so we can simply call the native + * handler. + */ + if (cmd == SIOCATALKDIFADDR) + return atalk_ioctl(sock, cmd, (unsigned long)compat_ptr(arg)); + + return -ENOIOCTLCMD; +} +#endif + + +static const struct net_proto_family atalk_family_ops = { + .family = PF_APPLETALK, + .create = atalk_create, + .owner = THIS_MODULE, +}; + +static const struct proto_ops atalk_dgram_ops = { + .family = PF_APPLETALK, + .owner = THIS_MODULE, + .release = atalk_release, + .bind = atalk_bind, + .connect = atalk_connect, + .socketpair = sock_no_socketpair, + .accept = sock_no_accept, + .getname = atalk_getname, + .poll = atalk_poll, + .ioctl = atalk_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = atalk_compat_ioctl, +#endif + .listen = sock_no_listen, + .shutdown = sock_no_shutdown, + .setsockopt = sock_no_setsockopt, + .getsockopt = sock_no_getsockopt, + .sendmsg = atalk_sendmsg, + .recvmsg = atalk_recvmsg, + .mmap = sock_no_mmap, + .sendpage = sock_no_sendpage, +}; + +static struct notifier_block ddp_notifier = { + .notifier_call = ddp_device_event, +}; + +static struct packet_type ltalk_packet_type __read_mostly = { + .type = cpu_to_be16(ETH_P_LOCALTALK), + .func = ltalk_rcv, +}; + +static struct packet_type ppptalk_packet_type __read_mostly = { + .type = cpu_to_be16(ETH_P_PPPTALK), + .func = atalk_rcv, +}; + +static unsigned char ddp_snap_id[] = { 0x08, 0x00, 0x07, 0x80, 0x9B }; + +/* Export symbols for use by drivers when AppleTalk is a module */ +EXPORT_SYMBOL(atrtr_get_dev); +EXPORT_SYMBOL(atalk_find_dev_addr); + +static const char atalk_err_snap[] __initconst = + KERN_CRIT "Unable to register DDP with SNAP.\n"; + +/* Called by proto.c on kernel start up */ +static int __init atalk_init(void) +{ + int rc = proto_register(&ddp_proto, 0); + + if (rc != 0) + goto out; + + (void)sock_register(&atalk_family_ops); + ddp_dl = register_snap_client(ddp_snap_id, atalk_rcv); + if (!ddp_dl) + printk(atalk_err_snap); + + dev_add_pack(<alk_packet_type); + dev_add_pack(&ppptalk_packet_type); + + register_netdevice_notifier(&ddp_notifier); + aarp_proto_init(); + atalk_proc_init(); + atalk_register_sysctl(); +out: + return rc; +} +module_init(atalk_init); + +/* + * No explicit module reference count manipulation is needed in the + * protocol. Socket layer sets module reference count for us + * and interfaces reference counting is done + * by the network device layer. + * + * Ergo, before the AppleTalk module can be removed, all AppleTalk + * sockets be closed from user space. + */ +static void __exit atalk_exit(void) +{ +#ifdef CONFIG_SYSCTL + atalk_unregister_sysctl(); +#endif /* CONFIG_SYSCTL */ + atalk_proc_exit(); + aarp_cleanup_module(); /* General aarp clean-up. */ + unregister_netdevice_notifier(&ddp_notifier); + dev_remove_pack(<alk_packet_type); + dev_remove_pack(&ppptalk_packet_type); + unregister_snap_client(ddp_dl); + sock_unregister(PF_APPLETALK); + proto_unregister(&ddp_proto); +} +module_exit(atalk_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Alan Cox "); +MODULE_DESCRIPTION("AppleTalk 0.20\n"); +MODULE_ALIAS_NETPROTO(PF_APPLETALK); diff --git a/drivers/staging/appletalk/dev.c b/drivers/staging/appletalk/dev.c new file mode 100644 index 000000000000..6c8016f61866 --- /dev/null +++ b/drivers/staging/appletalk/dev.c @@ -0,0 +1,44 @@ +/* + * Moved here from drivers/net/net_init.c, which is: + * Written 1993,1994,1995 by Donald Becker. + */ + +#include +#include +#include +#include +#include + +static void ltalk_setup(struct net_device *dev) +{ + /* Fill in the fields of the device structure with localtalk-generic values. */ + + dev->type = ARPHRD_LOCALTLK; + dev->hard_header_len = LTALK_HLEN; + dev->mtu = LTALK_MTU; + dev->addr_len = LTALK_ALEN; + dev->tx_queue_len = 10; + + dev->broadcast[0] = 0xFF; + + dev->flags = IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP; +} + +/** + * alloc_ltalkdev - Allocates and sets up an localtalk device + * @sizeof_priv: Size of additional driver-private structure to be allocated + * for this localtalk device + * + * Fill in the fields of the device structure with localtalk-generic + * values. Basically does everything except registering the device. + * + * Constructs a new net device, complete with a private data area of + * size @sizeof_priv. A 32-byte (not bit) alignment is enforced for + * this private data area. + */ + +struct net_device *alloc_ltalkdev(int sizeof_priv) +{ + return alloc_netdev(sizeof_priv, "lt%d", ltalk_setup); +} +EXPORT_SYMBOL(alloc_ltalkdev); diff --git a/drivers/staging/appletalk/ipddp.c b/drivers/staging/appletalk/ipddp.c new file mode 100644 index 000000000000..58b4e6098ad4 --- /dev/null +++ b/drivers/staging/appletalk/ipddp.c @@ -0,0 +1,335 @@ +/* + * ipddp.c: IP to Appletalk-IP Encapsulation driver for Linux + * Appletalk-IP to IP Decapsulation driver for Linux + * + * Authors: + * - DDP-IP Encap by: Bradford W. Johnson + * - DDP-IP Decap by: Jay Schulist + * + * Derived from: + * - Almost all code already existed in net/appletalk/ddp.c I just + * moved/reorginized it into a driver file. Original IP-over-DDP code + * was done by Bradford W. Johnson + * - skeleton.c: A network driver outline for linux. + * Written 1993-94 by Donald Becker. + * - dummy.c: A dummy net driver. By Nick Holloway. + * - MacGate: A user space Daemon for Appletalk-IP Decap for + * Linux by Jay Schulist + * + * Copyright 1993 United States Government as represented by the + * Director, National Security Agency. + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "atalk.h" +#include "ipddp.h" /* Our stuff */ + +static const char version[] = KERN_INFO "ipddp.c:v0.01 8/28/97 Bradford W. Johnson \n"; + +static struct ipddp_route *ipddp_route_list; +static DEFINE_SPINLOCK(ipddp_route_lock); + +#ifdef CONFIG_IPDDP_ENCAP +static int ipddp_mode = IPDDP_ENCAP; +#else +static int ipddp_mode = IPDDP_DECAP; +#endif + +/* Index to functions, as function prototypes. */ +static netdev_tx_t ipddp_xmit(struct sk_buff *skb, + struct net_device *dev); +static int ipddp_create(struct ipddp_route *new_rt); +static int ipddp_delete(struct ipddp_route *rt); +static struct ipddp_route* __ipddp_find_route(struct ipddp_route *rt); +static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); + +static const struct net_device_ops ipddp_netdev_ops = { + .ndo_start_xmit = ipddp_xmit, + .ndo_do_ioctl = ipddp_ioctl, + .ndo_change_mtu = eth_change_mtu, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +static struct net_device * __init ipddp_init(void) +{ + static unsigned version_printed; + struct net_device *dev; + int err; + + dev = alloc_etherdev(0); + if (!dev) + return ERR_PTR(-ENOMEM); + + dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; + strcpy(dev->name, "ipddp%d"); + + if (version_printed++ == 0) + printk(version); + + /* Initialize the device structure. */ + dev->netdev_ops = &ipddp_netdev_ops; + + dev->type = ARPHRD_IPDDP; /* IP over DDP tunnel */ + dev->mtu = 585; + dev->flags |= IFF_NOARP; + + /* + * The worst case header we will need is currently a + * ethernet header (14 bytes) and a ddp header (sizeof ddpehdr+1) + * We send over SNAP so that takes another 8 bytes. + */ + dev->hard_header_len = 14+8+sizeof(struct ddpehdr)+1; + + err = register_netdev(dev); + if (err) { + free_netdev(dev); + return ERR_PTR(err); + } + + /* Let the user now what mode we are in */ + if(ipddp_mode == IPDDP_ENCAP) + printk("%s: Appletalk-IP Encap. mode by Bradford W. Johnson \n", + dev->name); + if(ipddp_mode == IPDDP_DECAP) + printk("%s: Appletalk-IP Decap. mode by Jay Schulist \n", + dev->name); + + return dev; +} + + +/* + * Transmit LLAP/ELAP frame using aarp_send_ddp. + */ +static netdev_tx_t ipddp_xmit(struct sk_buff *skb, struct net_device *dev) +{ + __be32 paddr = skb_rtable(skb)->rt_gateway; + struct ddpehdr *ddp; + struct ipddp_route *rt; + struct atalk_addr *our_addr; + + spin_lock(&ipddp_route_lock); + + /* + * Find appropriate route to use, based only on IP number. + */ + for(rt = ipddp_route_list; rt != NULL; rt = rt->next) + { + if(rt->ip == paddr) + break; + } + if(rt == NULL) { + spin_unlock(&ipddp_route_lock); + return NETDEV_TX_OK; + } + + our_addr = atalk_find_dev_addr(rt->dev); + + if(ipddp_mode == IPDDP_DECAP) + /* + * Pull off the excess room that should not be there. + * This is due to a hard-header problem. This is the + * quick fix for now though, till it breaks. + */ + skb_pull(skb, 35-(sizeof(struct ddpehdr)+1)); + + /* Create the Extended DDP header */ + ddp = (struct ddpehdr *)skb->data; + ddp->deh_len_hops = htons(skb->len + (1<<10)); + ddp->deh_sum = 0; + + /* + * For Localtalk we need aarp_send_ddp to strip the + * long DDP header and place a shot DDP header on it. + */ + if(rt->dev->type == ARPHRD_LOCALTLK) + { + ddp->deh_dnet = 0; /* FIXME more hops?? */ + ddp->deh_snet = 0; + } + else + { + ddp->deh_dnet = rt->at.s_net; /* FIXME more hops?? */ + ddp->deh_snet = our_addr->s_net; + } + ddp->deh_dnode = rt->at.s_node; + ddp->deh_snode = our_addr->s_node; + ddp->deh_dport = 72; + ddp->deh_sport = 72; + + *((__u8 *)(ddp+1)) = 22; /* ddp type = IP */ + + skb->protocol = htons(ETH_P_ATALK); /* Protocol has changed */ + + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + + aarp_send_ddp(rt->dev, skb, &rt->at, NULL); + + spin_unlock(&ipddp_route_lock); + + return NETDEV_TX_OK; +} + +/* + * Create a routing entry. We first verify that the + * record does not already exist. If it does we return -EEXIST + */ +static int ipddp_create(struct ipddp_route *new_rt) +{ + struct ipddp_route *rt = kmalloc(sizeof(*rt), GFP_KERNEL); + + if (rt == NULL) + return -ENOMEM; + + rt->ip = new_rt->ip; + rt->at = new_rt->at; + rt->next = NULL; + if ((rt->dev = atrtr_get_dev(&rt->at)) == NULL) { + kfree(rt); + return -ENETUNREACH; + } + + spin_lock_bh(&ipddp_route_lock); + if (__ipddp_find_route(rt)) { + spin_unlock_bh(&ipddp_route_lock); + kfree(rt); + return -EEXIST; + } + + rt->next = ipddp_route_list; + ipddp_route_list = rt; + + spin_unlock_bh(&ipddp_route_lock); + + return 0; +} + +/* + * Delete a route, we only delete a FULL match. + * If route does not exist we return -ENOENT. + */ +static int ipddp_delete(struct ipddp_route *rt) +{ + struct ipddp_route **r = &ipddp_route_list; + struct ipddp_route *tmp; + + spin_lock_bh(&ipddp_route_lock); + while((tmp = *r) != NULL) + { + if(tmp->ip == rt->ip && + tmp->at.s_net == rt->at.s_net && + tmp->at.s_node == rt->at.s_node) + { + *r = tmp->next; + spin_unlock_bh(&ipddp_route_lock); + kfree(tmp); + return 0; + } + r = &tmp->next; + } + + spin_unlock_bh(&ipddp_route_lock); + return -ENOENT; +} + +/* + * Find a routing entry, we only return a FULL match + */ +static struct ipddp_route* __ipddp_find_route(struct ipddp_route *rt) +{ + struct ipddp_route *f; + + for(f = ipddp_route_list; f != NULL; f = f->next) + { + if(f->ip == rt->ip && + f->at.s_net == rt->at.s_net && + f->at.s_node == rt->at.s_node) + return f; + } + + return NULL; +} + +static int ipddp_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct ipddp_route __user *rt = ifr->ifr_data; + struct ipddp_route rcp, rcp2, *rp; + + if(!capable(CAP_NET_ADMIN)) + return -EPERM; + + if(copy_from_user(&rcp, rt, sizeof(rcp))) + return -EFAULT; + + switch(cmd) + { + case SIOCADDIPDDPRT: + return ipddp_create(&rcp); + + case SIOCFINDIPDDPRT: + spin_lock_bh(&ipddp_route_lock); + rp = __ipddp_find_route(&rcp); + if (rp) + memcpy(&rcp2, rp, sizeof(rcp2)); + spin_unlock_bh(&ipddp_route_lock); + + if (rp) { + if (copy_to_user(rt, &rcp2, + sizeof(struct ipddp_route))) + return -EFAULT; + return 0; + } else + return -ENOENT; + + case SIOCDELIPDDPRT: + return ipddp_delete(&rcp); + + default: + return -EINVAL; + } +} + +static struct net_device *dev_ipddp; + +MODULE_LICENSE("GPL"); +module_param(ipddp_mode, int, 0); + +static int __init ipddp_init_module(void) +{ + dev_ipddp = ipddp_init(); + if (IS_ERR(dev_ipddp)) + return PTR_ERR(dev_ipddp); + return 0; +} + +static void __exit ipddp_cleanup_module(void) +{ + struct ipddp_route *p; + + unregister_netdev(dev_ipddp); + free_netdev(dev_ipddp); + + while (ipddp_route_list) { + p = ipddp_route_list->next; + kfree(ipddp_route_list); + ipddp_route_list = p; + } +} + +module_init(ipddp_init_module); +module_exit(ipddp_cleanup_module); diff --git a/drivers/staging/appletalk/ipddp.h b/drivers/staging/appletalk/ipddp.h new file mode 100644 index 000000000000..531519da99a3 --- /dev/null +++ b/drivers/staging/appletalk/ipddp.h @@ -0,0 +1,27 @@ +/* + * ipddp.h: Header for IP-over-DDP driver for Linux. + */ + +#ifndef __LINUX_IPDDP_H +#define __LINUX_IPDDP_H + +#ifdef __KERNEL__ + +#define SIOCADDIPDDPRT (SIOCDEVPRIVATE) +#define SIOCDELIPDDPRT (SIOCDEVPRIVATE+1) +#define SIOCFINDIPDDPRT (SIOCDEVPRIVATE+2) + +struct ipddp_route +{ + struct net_device *dev; /* Carrier device */ + __be32 ip; /* IP address */ + struct atalk_addr at; /* Gateway appletalk address */ + int flags; + struct ipddp_route *next; +}; + +#define IPDDP_ENCAP 1 +#define IPDDP_DECAP 2 + +#endif /* __KERNEL__ */ +#endif /* __LINUX_IPDDP_H */ diff --git a/drivers/staging/appletalk/ltpc.c b/drivers/staging/appletalk/ltpc.c new file mode 100644 index 000000000000..60caf892695e --- /dev/null +++ b/drivers/staging/appletalk/ltpc.c @@ -0,0 +1,1288 @@ +/*** ltpc.c -- a driver for the LocalTalk PC card. + * + * Copyright (c) 1995,1996 Bradford W. Johnson + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + * This is ALPHA code at best. It may not work for you. It may + * damage your equipment. It may damage your relations with other + * users of your network. Use it at your own risk! + * + * Based in part on: + * skeleton.c by Donald Becker + * dummy.c by Nick Holloway and Alan Cox + * loopback.c by Ross Biro, Fred van Kampen, Donald Becker + * the netatalk source code (UMICH) + * lots of work on the card... + * + * I do not have access to the (proprietary) SDK that goes with the card. + * If you do, I don't want to know about it, and you can probably write + * a better driver yourself anyway. This does mean that the pieces that + * talk to the card are guesswork on my part, so use at your own risk! + * + * This is my first try at writing Linux networking code, and is also + * guesswork. Again, use at your own risk! (Although on this part, I'd + * welcome suggestions) + * + * This is a loadable kernel module which seems to work at my site + * consisting of a 1.2.13 linux box running netatalk 1.3.3, and with + * the kernel support from 1.3.3b2 including patches routing.patch + * and ddp.disappears.from.chooser. In order to run it, you will need + * to patch ddp.c and aarp.c in the kernel, but only a little... + * + * I'm fairly confident that while this is arguably badly written, the + * problems that people experience will be "higher level", that is, with + * complications in the netatalk code. The driver itself doesn't do + * anything terribly complicated -- it pretends to be an ether device + * as far as netatalk is concerned, strips the DDP data out of the ether + * frame and builds a LLAP packet to send out the card. In the other + * direction, it receives LLAP frames from the card and builds a fake + * ether packet that it then tosses up to the networking code. You can + * argue (correctly) that this is an ugly way to do things, but it + * requires a minimal amount of fooling with the code in ddp.c and aarp.c. + * + * The card will do a lot more than is used here -- I *think* it has the + * layers up through ATP. Even if you knew how that part works (which I + * don't) it would be a big job to carve up the kernel ddp code to insert + * things at a higher level, and probably a bad idea... + * + * There are a number of other cards that do LocalTalk on the PC. If + * nobody finds any insurmountable (at the netatalk level) problems + * here, this driver should encourage people to put some work into the + * other cards (some of which I gather are still commercially available) + * and also to put hooks for LocalTalk into the official ddp code. + * + * I welcome comments and suggestions. This is my first try at Linux + * networking stuff, and there are probably lots of things that I did + * suboptimally. + * + ***/ + +/*** + * + * $Log: ltpc.c,v $ + * Revision 1.1.2.1 2000/03/01 05:35:07 jgarzik + * at and tr cleanup + * + * Revision 1.8 1997/01/28 05:44:54 bradford + * Clean up for non-module a little. + * Hacked about a bit to clean things up - Alan Cox + * Probably broken it from the origina 1.8 + * + + * 1998/11/09: David Huggins-Daines + * Cleaned up the initialization code to use the standard autoirq methods, + and to probe for things in the standard order of i/o, irq, dma. This + removes the "reset the reset" hack, because I couldn't figure out an + easy way to get the card to trigger an interrupt after it. + * Added support for passing configuration parameters on the kernel command + line and through insmod + * Changed the device name from "ltalk0" to "lt0", both to conform with the + other localtalk driver, and to clear up the inconsistency between the + module and the non-module versions of the driver :-) + * Added a bunch of comments (I was going to make some enums for the state + codes and the register offsets, but I'm still not sure exactly what their + semantics are) + * Don't poll anymore in interrupt-driven mode + * It seems to work as a module now (as of 2.1.127), but I don't think + I'm responsible for that... + + * + * Revision 1.7 1996/12/12 03:42:33 bradford + * DMA alloc cribbed from 3c505.c. + * + * Revision 1.6 1996/12/12 03:18:58 bradford + * Added virt_to_bus; works in 2.1.13. + * + * Revision 1.5 1996/12/12 03:13:22 root + * xmitQel initialization -- think through better though. + * + * Revision 1.4 1996/06/18 14:55:55 root + * Change names to ltpc. Tabs. Took a shot at dma alloc, + * although more needs to be done eventually. + * + * Revision 1.3 1996/05/22 14:59:39 root + * Change dev->open, dev->close to track dummy.c in 1.99.(around 7) + * + * Revision 1.2 1996/05/22 14:58:24 root + * Change tabs mostly. + * + * Revision 1.1 1996/04/23 04:45:09 root + * Initial revision + * + * Revision 0.16 1996/03/05 15:59:56 root + * Change ARPHRD_LOCALTLK definition to the "real" one. + * + * Revision 0.15 1996/03/05 06:28:30 root + * Changes for kernel 1.3.70. Still need a few patches to kernel, but + * it's getting closer. + * + * Revision 0.14 1996/02/25 17:38:32 root + * More cleanups. Removed query to card on get_stats. + * + * Revision 0.13 1996/02/21 16:27:40 root + * Refix debug_print_skb. Fix mac.raw gotcha that appeared in 1.3.65. + * Clean up receive code a little. + * + * Revision 0.12 1996/02/19 16:34:53 root + * Fix debug_print_skb. Kludge outgoing snet to 0 when using startup + * range. Change debug to mask: 1 for verbose, 2 for higher level stuff + * including packet printing, 4 for lower level (card i/o) stuff. + * + * Revision 0.11 1996/02/12 15:53:38 root + * Added router sends (requires new aarp.c patch) + * + * Revision 0.10 1996/02/11 00:19:35 root + * Change source LTALK_LOGGING debug switch to insmod ... debug=2. + * + * Revision 0.9 1996/02/10 23:59:35 root + * Fixed those fixes for 1.2 -- DANGER! The at.h that comes with netatalk + * has a *different* definition of struct sockaddr_at than the Linux kernel + * does. This is an "insidious and invidious" bug... + * (Actually the preceding comment is false -- it's the atalk.h in the + * ancient atalk-0.06 that's the problem) + * + * Revision 0.8 1996/02/10 19:09:00 root + * Merge 1.3 changes. Tested OK under 1.3.60. + * + * Revision 0.7 1996/02/10 17:56:56 root + * Added debug=1 parameter on insmod for debugging prints. Tried + * to fix timer unload on rmmod, but I don't think that's the problem. + * + * Revision 0.6 1995/12/31 19:01:09 root + * Clean up rmmod, irq comments per feedback from Corin Anderson (Thanks Corey!) + * Clean up initial probing -- sometimes the card wakes up latched in reset. + * + * Revision 0.5 1995/12/22 06:03:44 root + * Added comments in front and cleaned up a bit. + * This version sent out to people. + * + * Revision 0.4 1995/12/18 03:46:44 root + * Return shortDDP to longDDP fake to 0/0. Added command structs. + * + ***/ + +/* ltpc jumpers are: +* +* Interrupts -- set at most one. If none are set, the driver uses +* polled mode. Because the card was developed in the XT era, the +* original documentation refers to IRQ2. Since you'll be running +* this on an AT (or later) class machine, that really means IRQ9. +* +* SW1 IRQ 4 +* SW2 IRQ 3 +* SW3 IRQ 9 (2 in original card documentation only applies to XT) +* +* +* DMA -- choose DMA 1 or 3, and set both corresponding switches. +* +* SW4 DMA 3 +* SW5 DMA 1 +* SW6 DMA 3 +* SW7 DMA 1 +* +* +* I/O address -- choose one. +* +* SW8 220 / 240 +*/ + +/* To have some stuff logged, do +* insmod ltpc.o debug=1 +* +* For a whole bunch of stuff, use higher numbers. +* +* The default is 0, i.e. no messages except for the probe results. +*/ + +/* insmod-tweakable variables */ +static int debug; +#define DEBUG_VERBOSE 1 +#define DEBUG_UPPER 2 +#define DEBUG_LOWER 4 + +static int io; +static int irq; +static int dma; + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +/* our stuff */ +#include "atalk.h" +#include "ltpc.h" + +static DEFINE_SPINLOCK(txqueue_lock); +static DEFINE_SPINLOCK(mbox_lock); + +/* function prototypes */ +static int do_read(struct net_device *dev, void *cbuf, int cbuflen, + void *dbuf, int dbuflen); +static int sendup_buffer (struct net_device *dev); + +/* Dma Memory related stuff, cribbed directly from 3c505.c */ + +static unsigned long dma_mem_alloc(int size) +{ + int order = get_order(size); + + return __get_dma_pages(GFP_KERNEL, order); +} + +/* DMA data buffer, DMA command buffer */ +static unsigned char *ltdmabuf; +static unsigned char *ltdmacbuf; + +/* private struct, holds our appletalk address */ + +struct ltpc_private +{ + struct atalk_addr my_addr; +}; + +/* transmit queue element struct */ + +struct xmitQel { + struct xmitQel *next; + /* command buffer */ + unsigned char *cbuf; + short cbuflen; + /* data buffer */ + unsigned char *dbuf; + short dbuflen; + unsigned char QWrite; /* read or write data */ + unsigned char mailbox; +}; + +/* the transmit queue itself */ + +static struct xmitQel *xmQhd, *xmQtl; + +static void enQ(struct xmitQel *qel) +{ + unsigned long flags; + qel->next = NULL; + + spin_lock_irqsave(&txqueue_lock, flags); + if (xmQtl) { + xmQtl->next = qel; + } else { + xmQhd = qel; + } + xmQtl = qel; + spin_unlock_irqrestore(&txqueue_lock, flags); + + if (debug & DEBUG_LOWER) + printk("enqueued a 0x%02x command\n",qel->cbuf[0]); +} + +static struct xmitQel *deQ(void) +{ + unsigned long flags; + int i; + struct xmitQel *qel=NULL; + + spin_lock_irqsave(&txqueue_lock, flags); + if (xmQhd) { + qel = xmQhd; + xmQhd = qel->next; + if(!xmQhd) xmQtl = NULL; + } + spin_unlock_irqrestore(&txqueue_lock, flags); + + if ((debug & DEBUG_LOWER) && qel) { + int n; + printk(KERN_DEBUG "ltpc: dequeued command "); + n = qel->cbuflen; + if (n>100) n=100; + for(i=0;icbuf[i]); + printk("\n"); + } + + return qel; +} + +/* and... the queue elements we'll be using */ +static struct xmitQel qels[16]; + +/* and their corresponding mailboxes */ +static unsigned char mailbox[16]; +static unsigned char mboxinuse[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + +static int wait_timeout(struct net_device *dev, int c) +{ + /* returns true if it stayed c */ + /* this uses base+6, but it's ok */ + int i; + + /* twenty second or so total */ + + for(i=0;i<200000;i++) { + if ( c != inb_p(dev->base_addr+6) ) return 0; + udelay(100); + } + return 1; /* timed out */ +} + +/* get the first free mailbox */ + +static int getmbox(void) +{ + unsigned long flags; + int i; + + spin_lock_irqsave(&mbox_lock, flags); + for(i=1;i<16;i++) if(!mboxinuse[i]) { + mboxinuse[i]=1; + spin_unlock_irqrestore(&mbox_lock, flags); + return i; + } + spin_unlock_irqrestore(&mbox_lock, flags); + return 0; +} + +/* read a command from the card */ +static void handlefc(struct net_device *dev) +{ + /* called *only* from idle, non-reentrant */ + int dma = dev->dma; + int base = dev->base_addr; + unsigned long flags; + + + flags=claim_dma_lock(); + disable_dma(dma); + clear_dma_ff(dma); + set_dma_mode(dma,DMA_MODE_READ); + set_dma_addr(dma,virt_to_bus(ltdmacbuf)); + set_dma_count(dma,50); + enable_dma(dma); + release_dma_lock(flags); + + inb_p(base+3); + inb_p(base+2); + + if ( wait_timeout(dev,0xfc) ) printk("timed out in handlefc\n"); +} + +/* read data from the card */ +static void handlefd(struct net_device *dev) +{ + int dma = dev->dma; + int base = dev->base_addr; + unsigned long flags; + + flags=claim_dma_lock(); + disable_dma(dma); + clear_dma_ff(dma); + set_dma_mode(dma,DMA_MODE_READ); + set_dma_addr(dma,virt_to_bus(ltdmabuf)); + set_dma_count(dma,800); + enable_dma(dma); + release_dma_lock(flags); + + inb_p(base+3); + inb_p(base+2); + + if ( wait_timeout(dev,0xfd) ) printk("timed out in handlefd\n"); + sendup_buffer(dev); +} + +static void handlewrite(struct net_device *dev) +{ + /* called *only* from idle, non-reentrant */ + /* on entry, 0xfb and ltdmabuf holds data */ + int dma = dev->dma; + int base = dev->base_addr; + unsigned long flags; + + flags=claim_dma_lock(); + disable_dma(dma); + clear_dma_ff(dma); + set_dma_mode(dma,DMA_MODE_WRITE); + set_dma_addr(dma,virt_to_bus(ltdmabuf)); + set_dma_count(dma,800); + enable_dma(dma); + release_dma_lock(flags); + + inb_p(base+3); + inb_p(base+2); + + if ( wait_timeout(dev,0xfb) ) { + flags=claim_dma_lock(); + printk("timed out in handlewrite, dma res %d\n", + get_dma_residue(dev->dma) ); + release_dma_lock(flags); + } +} + +static void handleread(struct net_device *dev) +{ + /* on entry, 0xfb */ + /* on exit, ltdmabuf holds data */ + int dma = dev->dma; + int base = dev->base_addr; + unsigned long flags; + + + flags=claim_dma_lock(); + disable_dma(dma); + clear_dma_ff(dma); + set_dma_mode(dma,DMA_MODE_READ); + set_dma_addr(dma,virt_to_bus(ltdmabuf)); + set_dma_count(dma,800); + enable_dma(dma); + release_dma_lock(flags); + + inb_p(base+3); + inb_p(base+2); + if ( wait_timeout(dev,0xfb) ) printk("timed out in handleread\n"); +} + +static void handlecommand(struct net_device *dev) +{ + /* on entry, 0xfa and ltdmacbuf holds command */ + int dma = dev->dma; + int base = dev->base_addr; + unsigned long flags; + + flags=claim_dma_lock(); + disable_dma(dma); + clear_dma_ff(dma); + set_dma_mode(dma,DMA_MODE_WRITE); + set_dma_addr(dma,virt_to_bus(ltdmacbuf)); + set_dma_count(dma,50); + enable_dma(dma); + release_dma_lock(flags); + inb_p(base+3); + inb_p(base+2); + if ( wait_timeout(dev,0xfa) ) printk("timed out in handlecommand\n"); +} + +/* ready made command for getting the result from the card */ +static unsigned char rescbuf[2] = {LT_GETRESULT,0}; +static unsigned char resdbuf[2]; + +static int QInIdle; + +/* idle expects to be called with the IRQ line high -- either because of + * an interrupt, or because the line is tri-stated + */ + +static void idle(struct net_device *dev) +{ + unsigned long flags; + int state; + /* FIXME This is initialized to shut the warning up, but I need to + * think this through again. + */ + struct xmitQel *q = NULL; + int oops; + int i; + int base = dev->base_addr; + + spin_lock_irqsave(&txqueue_lock, flags); + if(QInIdle) { + spin_unlock_irqrestore(&txqueue_lock, flags); + return; + } + QInIdle = 1; + spin_unlock_irqrestore(&txqueue_lock, flags); + + /* this tri-states the IRQ line */ + (void) inb_p(base+6); + + oops = 100; + +loop: + if (0>oops--) { + printk("idle: looped too many times\n"); + goto done; + } + + state = inb_p(base+6); + if (state != inb_p(base+6)) goto loop; + + switch(state) { + case 0xfc: + /* incoming command */ + if (debug & DEBUG_LOWER) printk("idle: fc\n"); + handlefc(dev); + break; + case 0xfd: + /* incoming data */ + if(debug & DEBUG_LOWER) printk("idle: fd\n"); + handlefd(dev); + break; + case 0xf9: + /* result ready */ + if (debug & DEBUG_LOWER) printk("idle: f9\n"); + if(!mboxinuse[0]) { + mboxinuse[0] = 1; + qels[0].cbuf = rescbuf; + qels[0].cbuflen = 2; + qels[0].dbuf = resdbuf; + qels[0].dbuflen = 2; + qels[0].QWrite = 0; + qels[0].mailbox = 0; + enQ(&qels[0]); + } + inb_p(dev->base_addr+1); + inb_p(dev->base_addr+0); + if( wait_timeout(dev,0xf9) ) + printk("timed out idle f9\n"); + break; + case 0xf8: + /* ?? */ + if (xmQhd) { + inb_p(dev->base_addr+1); + inb_p(dev->base_addr+0); + if(wait_timeout(dev,0xf8) ) + printk("timed out idle f8\n"); + } else { + goto done; + } + break; + case 0xfa: + /* waiting for command */ + if(debug & DEBUG_LOWER) printk("idle: fa\n"); + if (xmQhd) { + q=deQ(); + memcpy(ltdmacbuf,q->cbuf,q->cbuflen); + ltdmacbuf[1] = q->mailbox; + if (debug>1) { + int n; + printk("ltpc: sent command "); + n = q->cbuflen; + if (n>100) n=100; + for(i=0;iQWrite) { + memcpy(ltdmabuf,q->dbuf,q->dbuflen); + handlewrite(dev); + } else { + handleread(dev); + /* non-zero mailbox numbers are for + commmands, 0 is for GETRESULT + requests */ + if(q->mailbox) { + memcpy(q->dbuf,ltdmabuf,q->dbuflen); + } else { + /* this was a result */ + mailbox[ 0x0f & ltdmabuf[0] ] = ltdmabuf[1]; + mboxinuse[0]=0; + } + } + break; + } + goto loop; + +done: + QInIdle=0; + + /* now set the interrupts back as appropriate */ + /* the first read takes it out of tri-state (but still high) */ + /* the second resets it */ + /* note that after this point, any read of base+6 will + trigger an interrupt */ + + if (dev->irq) { + inb_p(base+7); + inb_p(base+7); + } +} + + +static int do_write(struct net_device *dev, void *cbuf, int cbuflen, + void *dbuf, int dbuflen) +{ + + int i = getmbox(); + int ret; + + if(i) { + qels[i].cbuf = (unsigned char *) cbuf; + qels[i].cbuflen = cbuflen; + qels[i].dbuf = (unsigned char *) dbuf; + qels[i].dbuflen = dbuflen; + qels[i].QWrite = 1; + qels[i].mailbox = i; /* this should be initted rather */ + enQ(&qels[i]); + idle(dev); + ret = mailbox[i]; + mboxinuse[i]=0; + return ret; + } + printk("ltpc: could not allocate mbox\n"); + return -1; +} + +static int do_read(struct net_device *dev, void *cbuf, int cbuflen, + void *dbuf, int dbuflen) +{ + + int i = getmbox(); + int ret; + + if(i) { + qels[i].cbuf = (unsigned char *) cbuf; + qels[i].cbuflen = cbuflen; + qels[i].dbuf = (unsigned char *) dbuf; + qels[i].dbuflen = dbuflen; + qels[i].QWrite = 0; + qels[i].mailbox = i; /* this should be initted rather */ + enQ(&qels[i]); + idle(dev); + ret = mailbox[i]; + mboxinuse[i]=0; + return ret; + } + printk("ltpc: could not allocate mbox\n"); + return -1; +} + +/* end of idle handlers -- what should be seen is do_read, do_write */ + +static struct timer_list ltpc_timer; + +static netdev_tx_t ltpc_xmit(struct sk_buff *skb, struct net_device *dev); + +static int read_30 ( struct net_device *dev) +{ + lt_command c; + c.getflags.command = LT_GETFLAGS; + return do_read(dev, &c, sizeof(c.getflags),&c,0); +} + +static int set_30 (struct net_device *dev,int x) +{ + lt_command c; + c.setflags.command = LT_SETFLAGS; + c.setflags.flags = x; + return do_write(dev, &c, sizeof(c.setflags),&c,0); +} + +/* LLAP to DDP translation */ + +static int sendup_buffer (struct net_device *dev) +{ + /* on entry, command is in ltdmacbuf, data in ltdmabuf */ + /* called from idle, non-reentrant */ + + int dnode, snode, llaptype, len; + int sklen; + struct sk_buff *skb; + struct lt_rcvlap *ltc = (struct lt_rcvlap *) ltdmacbuf; + + if (ltc->command != LT_RCVLAP) { + printk("unknown command 0x%02x from ltpc card\n",ltc->command); + return -1; + } + dnode = ltc->dnode; + snode = ltc->snode; + llaptype = ltc->laptype; + len = ltc->length; + + sklen = len; + if (llaptype == 1) + sklen += 8; /* correct for short ddp */ + if(sklen > 800) { + printk(KERN_INFO "%s: nonsense length in ltpc command 0x14: 0x%08x\n", + dev->name,sklen); + return -1; + } + + if ( (llaptype==0) || (llaptype>2) ) { + printk(KERN_INFO "%s: unknown LLAP type: %d\n",dev->name,llaptype); + return -1; + } + + + skb = dev_alloc_skb(3+sklen); + if (skb == NULL) + { + printk("%s: dropping packet due to memory squeeze.\n", + dev->name); + return -1; + } + skb->dev = dev; + + if (sklen > len) + skb_reserve(skb,8); + skb_put(skb,len+3); + skb->protocol = htons(ETH_P_LOCALTALK); + /* add LLAP header */ + skb->data[0] = dnode; + skb->data[1] = snode; + skb->data[2] = llaptype; + skb_reset_mac_header(skb); /* save pointer to llap header */ + skb_pull(skb,3); + + /* copy ddp(s,e)hdr + contents */ + skb_copy_to_linear_data(skb, ltdmabuf, len); + + skb_reset_transport_header(skb); + + dev->stats.rx_packets++; + dev->stats.rx_bytes += skb->len; + + /* toss it onwards */ + netif_rx(skb); + return 0; +} + +/* the handler for the board interrupt */ + +static irqreturn_t +ltpc_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + + if (dev==NULL) { + printk("ltpc_interrupt: unknown device.\n"); + return IRQ_NONE; + } + + inb_p(dev->base_addr+6); /* disable further interrupts from board */ + + idle(dev); /* handle whatever is coming in */ + + /* idle re-enables interrupts from board */ + + return IRQ_HANDLED; +} + +/*** + * + * The ioctls that the driver responds to are: + * + * SIOCSIFADDR -- do probe using the passed node hint. + * SIOCGIFADDR -- return net, node. + * + * some of this stuff should be done elsewhere. + * + ***/ + +static int ltpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct sockaddr_at *sa = (struct sockaddr_at *) &ifr->ifr_addr; + /* we'll keep the localtalk node address in dev->pa_addr */ + struct ltpc_private *ltpc_priv = netdev_priv(dev); + struct atalk_addr *aa = <pc_priv->my_addr; + struct lt_init c; + int ltflags; + + if(debug & DEBUG_VERBOSE) printk("ltpc_ioctl called\n"); + + switch(cmd) { + case SIOCSIFADDR: + + aa->s_net = sa->sat_addr.s_net; + + /* this does the probe and returns the node addr */ + c.command = LT_INIT; + c.hint = sa->sat_addr.s_node; + + aa->s_node = do_read(dev,&c,sizeof(c),&c,0); + + /* get all llap frames raw */ + ltflags = read_30(dev); + ltflags |= LT_FLAG_ALLLAP; + set_30 (dev,ltflags); + + dev->broadcast[0] = 0xFF; + dev->dev_addr[0] = aa->s_node; + + dev->addr_len=1; + + return 0; + + case SIOCGIFADDR: + + sa->sat_addr.s_net = aa->s_net; + sa->sat_addr.s_node = aa->s_node; + + return 0; + + default: + return -EINVAL; + } +} + +static void set_multicast_list(struct net_device *dev) +{ + /* This needs to be present to keep netatalk happy. */ + /* Actually netatalk needs fixing! */ +} + +static int ltpc_poll_counter; + +static void ltpc_poll(unsigned long l) +{ + struct net_device *dev = (struct net_device *) l; + + del_timer(<pc_timer); + + if(debug & DEBUG_VERBOSE) { + if (!ltpc_poll_counter) { + ltpc_poll_counter = 50; + printk("ltpc poll is alive\n"); + } + ltpc_poll_counter--; + } + + if (!dev) + return; /* we've been downed */ + + /* poll 20 times per second */ + idle(dev); + ltpc_timer.expires = jiffies + HZ/20; + + add_timer(<pc_timer); +} + +/* DDP to LLAP translation */ + +static netdev_tx_t ltpc_xmit(struct sk_buff *skb, struct net_device *dev) +{ + /* in kernel 1.3.xx, on entry skb->data points to ddp header, + * and skb->len is the length of the ddp data + ddp header + */ + int i; + struct lt_sendlap cbuf; + unsigned char *hdr; + + cbuf.command = LT_SENDLAP; + cbuf.dnode = skb->data[0]; + cbuf.laptype = skb->data[2]; + skb_pull(skb,3); /* skip past LLAP header */ + cbuf.length = skb->len; /* this is host order */ + skb_reset_transport_header(skb); + + if(debug & DEBUG_UPPER) { + printk("command "); + for(i=0;i<6;i++) + printk("%02x ",((unsigned char *)&cbuf)[i]); + printk("\n"); + } + + hdr = skb_transport_header(skb); + do_write(dev, &cbuf, sizeof(cbuf), hdr, skb->len); + + if(debug & DEBUG_UPPER) { + printk("sent %d ddp bytes\n",skb->len); + for (i = 0; i < skb->len; i++) + printk("%02x ", hdr[i]); + printk("\n"); + } + + dev->stats.tx_packets++; + dev->stats.tx_bytes += skb->len; + + dev_kfree_skb(skb); + return NETDEV_TX_OK; +} + +/* initialization stuff */ + +static int __init ltpc_probe_dma(int base, int dma) +{ + int want = (dma == 3) ? 2 : (dma == 1) ? 1 : 3; + unsigned long timeout; + unsigned long f; + + if (want & 1) { + if (request_dma(1,"ltpc")) { + want &= ~1; + } else { + f=claim_dma_lock(); + disable_dma(1); + clear_dma_ff(1); + set_dma_mode(1,DMA_MODE_WRITE); + set_dma_addr(1,virt_to_bus(ltdmabuf)); + set_dma_count(1,sizeof(struct lt_mem)); + enable_dma(1); + release_dma_lock(f); + } + } + if (want & 2) { + if (request_dma(3,"ltpc")) { + want &= ~2; + } else { + f=claim_dma_lock(); + disable_dma(3); + clear_dma_ff(3); + set_dma_mode(3,DMA_MODE_WRITE); + set_dma_addr(3,virt_to_bus(ltdmabuf)); + set_dma_count(3,sizeof(struct lt_mem)); + enable_dma(3); + release_dma_lock(f); + } + } + /* set up request */ + + /* FIXME -- do timings better! */ + + ltdmabuf[0] = LT_READMEM; + ltdmabuf[1] = 1; /* mailbox */ + ltdmabuf[2] = 0; ltdmabuf[3] = 0; /* address */ + ltdmabuf[4] = 0; ltdmabuf[5] = 1; /* read 0x0100 bytes */ + ltdmabuf[6] = 0; /* dunno if this is necessary */ + + inb_p(io+1); + inb_p(io+0); + timeout = jiffies+100*HZ/100; + while(time_before(jiffies, timeout)) { + if ( 0xfa == inb_p(io+6) ) break; + } + + inb_p(io+3); + inb_p(io+2); + while(time_before(jiffies, timeout)) { + if ( 0xfb == inb_p(io+6) ) break; + } + + /* release the other dma channel (if we opened both of them) */ + + if ((want & 2) && (get_dma_residue(3)==sizeof(struct lt_mem))) { + want &= ~2; + free_dma(3); + } + + if ((want & 1) && (get_dma_residue(1)==sizeof(struct lt_mem))) { + want &= ~1; + free_dma(1); + } + + if (!want) + return 0; + + return (want & 2) ? 3 : 1; +} + +static const struct net_device_ops ltpc_netdev = { + .ndo_start_xmit = ltpc_xmit, + .ndo_do_ioctl = ltpc_ioctl, + .ndo_set_multicast_list = set_multicast_list, +}; + +struct net_device * __init ltpc_probe(void) +{ + struct net_device *dev; + int err = -ENOMEM; + int x=0,y=0; + int autoirq; + unsigned long f; + unsigned long timeout; + + dev = alloc_ltalkdev(sizeof(struct ltpc_private)); + if (!dev) + goto out; + + /* probe for the I/O port address */ + + if (io != 0x240 && request_region(0x220,8,"ltpc")) { + x = inb_p(0x220+6); + if ( (x!=0xff) && (x>=0xf0) ) { + io = 0x220; + goto got_port; + } + release_region(0x220,8); + } + if (io != 0x220 && request_region(0x240,8,"ltpc")) { + y = inb_p(0x240+6); + if ( (y!=0xff) && (y>=0xf0) ){ + io = 0x240; + goto got_port; + } + release_region(0x240,8); + } + + /* give up in despair */ + printk(KERN_ERR "LocalTalk card not found; 220 = %02x, 240 = %02x.\n", x,y); + err = -ENODEV; + goto out1; + + got_port: + /* probe for the IRQ line */ + if (irq < 2) { + unsigned long irq_mask; + + irq_mask = probe_irq_on(); + /* reset the interrupt line */ + inb_p(io+7); + inb_p(io+7); + /* trigger an interrupt (I hope) */ + inb_p(io+6); + mdelay(2); + autoirq = probe_irq_off(irq_mask); + + if (autoirq == 0) { + printk(KERN_ERR "ltpc: probe at %#x failed to detect IRQ line.\n", io); + } else { + irq = autoirq; + } + } + + /* allocate a DMA buffer */ + ltdmabuf = (unsigned char *) dma_mem_alloc(1000); + if (!ltdmabuf) { + printk(KERN_ERR "ltpc: mem alloc failed\n"); + err = -ENOMEM; + goto out2; + } + + ltdmacbuf = <dmabuf[800]; + + if(debug & DEBUG_VERBOSE) { + printk("ltdmabuf pointer %08lx\n",(unsigned long) ltdmabuf); + } + + /* reset the card */ + + inb_p(io+1); + inb_p(io+3); + + msleep(20); + + inb_p(io+0); + inb_p(io+2); + inb_p(io+7); /* clear reset */ + inb_p(io+4); + inb_p(io+5); + inb_p(io+5); /* enable dma */ + inb_p(io+6); /* tri-state interrupt line */ + + ssleep(1); + + /* now, figure out which dma channel we're using, unless it's + already been specified */ + /* well, 0 is a legal DMA channel, but the LTPC card doesn't + use it... */ + dma = ltpc_probe_dma(io, dma); + if (!dma) { /* no dma channel */ + printk(KERN_ERR "No DMA channel found on ltpc card.\n"); + err = -ENODEV; + goto out3; + } + + /* print out friendly message */ + if(irq) + printk(KERN_INFO "Apple/Farallon LocalTalk-PC card at %03x, IR%d, DMA%d.\n",io,irq,dma); + else + printk(KERN_INFO "Apple/Farallon LocalTalk-PC card at %03x, DMA%d. Using polled mode.\n",io,dma); + + dev->netdev_ops = <pc_netdev; + dev->base_addr = io; + dev->irq = irq; + dev->dma = dma; + + /* the card will want to send a result at this point */ + /* (I think... leaving out this part makes the kernel crash, + so I put it back in...) */ + + f=claim_dma_lock(); + disable_dma(dma); + clear_dma_ff(dma); + set_dma_mode(dma,DMA_MODE_READ); + set_dma_addr(dma,virt_to_bus(ltdmabuf)); + set_dma_count(dma,0x100); + enable_dma(dma); + release_dma_lock(f); + + (void) inb_p(io+3); + (void) inb_p(io+2); + timeout = jiffies+100*HZ/100; + + while(time_before(jiffies, timeout)) { + if( 0xf9 == inb_p(io+6)) + break; + schedule(); + } + + if(debug & DEBUG_VERBOSE) { + printk("setting up timer and irq\n"); + } + + /* grab it and don't let go :-) */ + if (irq && request_irq( irq, ltpc_interrupt, 0, "ltpc", dev) >= 0) + { + (void) inb_p(io+7); /* enable interrupts from board */ + (void) inb_p(io+7); /* and reset irq line */ + } else { + if( irq ) + printk(KERN_ERR "ltpc: IRQ already in use, using polled mode.\n"); + dev->irq = 0; + /* polled mode -- 20 times per second */ + /* this is really, really slow... should it poll more often? */ + init_timer(<pc_timer); + ltpc_timer.function=ltpc_poll; + ltpc_timer.data = (unsigned long) dev; + + ltpc_timer.expires = jiffies + HZ/20; + add_timer(<pc_timer); + } + err = register_netdev(dev); + if (err) + goto out4; + + return NULL; +out4: + del_timer_sync(<pc_timer); + if (dev->irq) + free_irq(dev->irq, dev); +out3: + free_pages((unsigned long)ltdmabuf, get_order(1000)); +out2: + release_region(io, 8); +out1: + free_netdev(dev); +out: + return ERR_PTR(err); +} + +#ifndef MODULE +/* handles "ltpc=io,irq,dma" kernel command lines */ +static int __init ltpc_setup(char *str) +{ + int ints[5]; + + str = get_options(str, ARRAY_SIZE(ints), ints); + + if (ints[0] == 0) { + if (str && !strncmp(str, "auto", 4)) { + /* do nothing :-) */ + } + else { + /* usage message */ + printk (KERN_ERR + "ltpc: usage: ltpc=auto|iobase[,irq[,dma]]\n"); + return 0; + } + } else { + io = ints[1]; + if (ints[0] > 1) { + irq = ints[2]; + } + if (ints[0] > 2) { + dma = ints[3]; + } + /* ignore any other parameters */ + } + return 1; +} + +__setup("ltpc=", ltpc_setup); +#endif /* MODULE */ + +static struct net_device *dev_ltpc; + +#ifdef MODULE + +MODULE_LICENSE("GPL"); +module_param(debug, int, 0); +module_param(io, int, 0); +module_param(irq, int, 0); +module_param(dma, int, 0); + + +static int __init ltpc_module_init(void) +{ + if(io == 0) + printk(KERN_NOTICE + "ltpc: Autoprobing is not recommended for modules\n"); + + dev_ltpc = ltpc_probe(); + if (IS_ERR(dev_ltpc)) + return PTR_ERR(dev_ltpc); + return 0; +} +module_init(ltpc_module_init); +#endif + +static void __exit ltpc_cleanup(void) +{ + + if(debug & DEBUG_VERBOSE) printk("unregister_netdev\n"); + unregister_netdev(dev_ltpc); + + ltpc_timer.data = 0; /* signal the poll routine that we're done */ + + del_timer_sync(<pc_timer); + + if(debug & DEBUG_VERBOSE) printk("freeing irq\n"); + + if (dev_ltpc->irq) + free_irq(dev_ltpc->irq, dev_ltpc); + + if(debug & DEBUG_VERBOSE) printk("freeing dma\n"); + + if (dev_ltpc->dma) + free_dma(dev_ltpc->dma); + + if(debug & DEBUG_VERBOSE) printk("freeing ioaddr\n"); + + if (dev_ltpc->base_addr) + release_region(dev_ltpc->base_addr,8); + + free_netdev(dev_ltpc); + + if(debug & DEBUG_VERBOSE) printk("free_pages\n"); + + free_pages( (unsigned long) ltdmabuf, get_order(1000)); + + if(debug & DEBUG_VERBOSE) printk("returning from cleanup_module\n"); +} + +module_exit(ltpc_cleanup); diff --git a/drivers/staging/appletalk/ltpc.h b/drivers/staging/appletalk/ltpc.h new file mode 100644 index 000000000000..cd30544a3729 --- /dev/null +++ b/drivers/staging/appletalk/ltpc.h @@ -0,0 +1,73 @@ +/*** ltpc.h + * + * + ***/ + +#define LT_GETRESULT 0x00 +#define LT_WRITEMEM 0x01 +#define LT_READMEM 0x02 +#define LT_GETFLAGS 0x04 +#define LT_SETFLAGS 0x05 +#define LT_INIT 0x10 +#define LT_SENDLAP 0x13 +#define LT_RCVLAP 0x14 + +/* the flag that we care about */ +#define LT_FLAG_ALLLAP 0x04 + +struct lt_getresult { + unsigned char command; + unsigned char mailbox; +}; + +struct lt_mem { + unsigned char command; + unsigned char mailbox; + unsigned short addr; /* host order */ + unsigned short length; /* host order */ +}; + +struct lt_setflags { + unsigned char command; + unsigned char mailbox; + unsigned char flags; +}; + +struct lt_getflags { + unsigned char command; + unsigned char mailbox; +}; + +struct lt_init { + unsigned char command; + unsigned char mailbox; + unsigned char hint; +}; + +struct lt_sendlap { + unsigned char command; + unsigned char mailbox; + unsigned char dnode; + unsigned char laptype; + unsigned short length; /* host order */ +}; + +struct lt_rcvlap { + unsigned char command; + unsigned char dnode; + unsigned char snode; + unsigned char laptype; + unsigned short length; /* host order */ +}; + +union lt_command { + struct lt_getresult getresult; + struct lt_mem mem; + struct lt_setflags setflags; + struct lt_getflags getflags; + struct lt_init init; + struct lt_sendlap sendlap; + struct lt_rcvlap rcvlap; +}; +typedef union lt_command lt_command; + diff --git a/drivers/staging/appletalk/sysctl_net_atalk.c b/drivers/staging/appletalk/sysctl_net_atalk.c new file mode 100644 index 000000000000..4c896b625b2b --- /dev/null +++ b/drivers/staging/appletalk/sysctl_net_atalk.c @@ -0,0 +1,61 @@ +/* + * sysctl_net_atalk.c: sysctl interface to net AppleTalk subsystem. + * + * Begun April 1, 1996, Mike Shaver. + * Added /proc/sys/net/atalk directory entry (empty =) ). [MS] + * Dynamic registration, added aarp entries. (5/30/97 Chris Horn) + */ + +#include +#include +#include "atalk.h" + +static struct ctl_table atalk_table[] = { + { + .procname = "aarp-expiry-time", + .data = &sysctl_aarp_expiry_time, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_jiffies, + }, + { + .procname = "aarp-tick-time", + .data = &sysctl_aarp_tick_time, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_jiffies, + }, + { + .procname = "aarp-retransmit-limit", + .data = &sysctl_aarp_retransmit_limit, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { + .procname = "aarp-resolve-time", + .data = &sysctl_aarp_resolve_time, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_jiffies, + }, + { }, +}; + +static struct ctl_path atalk_path[] = { + { .procname = "net", }, + { .procname = "appletalk", }, + { } +}; + +static struct ctl_table_header *atalk_table_header; + +void atalk_register_sysctl(void) +{ + atalk_table_header = register_sysctl_paths(atalk_path, atalk_table); +} + +void atalk_unregister_sysctl(void) +{ + unregister_sysctl_table(atalk_table_header); +} diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 61abb638b4bf..86a2d7d905c0 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -56,7 +56,6 @@ #include #include #include -#include #include #include diff --git a/include/linux/Kbuild b/include/linux/Kbuild index 2296d8b1931f..362041b73a2f 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -43,7 +43,6 @@ header-y += agpgart.h header-y += aio_abi.h header-y += apm_bios.h header-y += arcfb.h -header-y += atalk.h header-y += atm.h header-y += atm_eni.h header-y += atm_he.h diff --git a/include/linux/atalk.h b/include/linux/atalk.h deleted file mode 100644 index d34c187432ed..000000000000 --- a/include/linux/atalk.h +++ /dev/null @@ -1,208 +0,0 @@ -#ifndef __LINUX_ATALK_H__ -#define __LINUX_ATALK_H__ - -#include -#include - -/* - * AppleTalk networking structures - * - * The following are directly referenced from the University Of Michigan - * netatalk for compatibility reasons. - */ -#define ATPORT_FIRST 1 -#define ATPORT_RESERVED 128 -#define ATPORT_LAST 254 /* 254 is only legal on localtalk */ -#define ATADDR_ANYNET (__u16)0 -#define ATADDR_ANYNODE (__u8)0 -#define ATADDR_ANYPORT (__u8)0 -#define ATADDR_BCAST (__u8)255 -#define DDP_MAXSZ 587 -#define DDP_MAXHOPS 15 /* 4 bits of hop counter */ - -#define SIOCATALKDIFADDR (SIOCPROTOPRIVATE + 0) - -struct atalk_addr { - __be16 s_net; - __u8 s_node; -}; - -struct sockaddr_at { - sa_family_t sat_family; - __u8 sat_port; - struct atalk_addr sat_addr; - char sat_zero[8]; -}; - -struct atalk_netrange { - __u8 nr_phase; - __be16 nr_firstnet; - __be16 nr_lastnet; -}; - -#ifdef __KERNEL__ - -#include - -struct atalk_route { - struct net_device *dev; - struct atalk_addr target; - struct atalk_addr gateway; - int flags; - struct atalk_route *next; -}; - -/** - * struct atalk_iface - AppleTalk Interface - * @dev - Network device associated with this interface - * @address - Our address - * @status - What are we doing? - * @nets - Associated direct netrange - * @next - next element in the list of interfaces - */ -struct atalk_iface { - struct net_device *dev; - struct atalk_addr address; - int status; -#define ATIF_PROBE 1 /* Probing for an address */ -#define ATIF_PROBE_FAIL 2 /* Probe collided */ - struct atalk_netrange nets; - struct atalk_iface *next; -}; - -struct atalk_sock { - /* struct sock has to be the first member of atalk_sock */ - struct sock sk; - __be16 dest_net; - __be16 src_net; - unsigned char dest_node; - unsigned char src_node; - unsigned char dest_port; - unsigned char src_port; -}; - -static inline struct atalk_sock *at_sk(struct sock *sk) -{ - return (struct atalk_sock *)sk; -} - -struct ddpehdr { - __be16 deh_len_hops; /* lower 10 bits are length, next 4 - hops */ - __be16 deh_sum; - __be16 deh_dnet; - __be16 deh_snet; - __u8 deh_dnode; - __u8 deh_snode; - __u8 deh_dport; - __u8 deh_sport; - /* And netatalk apps expect to stick the type in themselves */ -}; - -static __inline__ struct ddpehdr *ddp_hdr(struct sk_buff *skb) -{ - return (struct ddpehdr *)skb_transport_header(skb); -} - -/* AppleTalk AARP headers */ -struct elapaarp { - __be16 hw_type; -#define AARP_HW_TYPE_ETHERNET 1 -#define AARP_HW_TYPE_TOKENRING 2 - __be16 pa_type; - __u8 hw_len; - __u8 pa_len; -#define AARP_PA_ALEN 4 - __be16 function; -#define AARP_REQUEST 1 -#define AARP_REPLY 2 -#define AARP_PROBE 3 - __u8 hw_src[ETH_ALEN]; - __u8 pa_src_zero; - __be16 pa_src_net; - __u8 pa_src_node; - __u8 hw_dst[ETH_ALEN]; - __u8 pa_dst_zero; - __be16 pa_dst_net; - __u8 pa_dst_node; -} __attribute__ ((packed)); - -static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb) -{ - return (struct elapaarp *)skb_transport_header(skb); -} - -/* Not specified - how long till we drop a resolved entry */ -#define AARP_EXPIRY_TIME (5 * 60 * HZ) -/* Size of hash table */ -#define AARP_HASH_SIZE 16 -/* Fast retransmission timer when resolving */ -#define AARP_TICK_TIME (HZ / 5) -/* Send 10 requests then give up (2 seconds) */ -#define AARP_RETRANSMIT_LIMIT 10 -/* - * Some value bigger than total retransmit time + a bit for last reply to - * appear and to stop continual requests - */ -#define AARP_RESOLVE_TIME (10 * HZ) - -extern struct datalink_proto *ddp_dl, *aarp_dl; -extern void aarp_proto_init(void); - -/* Inter module exports */ - -/* Give a device find its atif control structure */ -static inline struct atalk_iface *atalk_find_dev(struct net_device *dev) -{ - return dev->atalk_ptr; -} - -extern struct atalk_addr *atalk_find_dev_addr(struct net_device *dev); -extern struct net_device *atrtr_get_dev(struct atalk_addr *sa); -extern int aarp_send_ddp(struct net_device *dev, - struct sk_buff *skb, - struct atalk_addr *sa, void *hwaddr); -extern void aarp_device_down(struct net_device *dev); -extern void aarp_probe_network(struct atalk_iface *atif); -extern int aarp_proxy_probe_network(struct atalk_iface *atif, - struct atalk_addr *sa); -extern void aarp_proxy_remove(struct net_device *dev, - struct atalk_addr *sa); - -extern void aarp_cleanup_module(void); - -extern struct hlist_head atalk_sockets; -extern rwlock_t atalk_sockets_lock; - -extern struct atalk_route *atalk_routes; -extern rwlock_t atalk_routes_lock; - -extern struct atalk_iface *atalk_interfaces; -extern rwlock_t atalk_interfaces_lock; - -extern struct atalk_route atrtr_default; - -extern const struct file_operations atalk_seq_arp_fops; - -extern int sysctl_aarp_expiry_time; -extern int sysctl_aarp_tick_time; -extern int sysctl_aarp_retransmit_limit; -extern int sysctl_aarp_resolve_time; - -#ifdef CONFIG_SYSCTL -extern void atalk_register_sysctl(void); -extern void atalk_unregister_sysctl(void); -#else -#define atalk_register_sysctl() do { } while(0) -#define atalk_unregister_sysctl() do { } while(0) -#endif - -#ifdef CONFIG_PROC_FS -extern int atalk_proc_init(void); -extern void atalk_proc_exit(void); -#else -#define atalk_proc_init() ({ 0; }) -#define atalk_proc_exit() do { } while(0) -#endif /* CONFIG_PROC_FS */ - -#endif /* __KERNEL__ */ -#endif /* __LINUX_ATALK_H__ */ diff --git a/net/Kconfig b/net/Kconfig index 72840626284b..082c8bc977e1 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -204,7 +204,6 @@ source "net/8021q/Kconfig" source "net/decnet/Kconfig" source "net/llc/Kconfig" source "net/ipx/Kconfig" -source "drivers/net/appletalk/Kconfig" source "net/x25/Kconfig" source "net/lapb/Kconfig" source "net/econet/Kconfig" diff --git a/net/Makefile b/net/Makefile index a3330ebe2c53..16d9947b4b95 100644 --- a/net/Makefile +++ b/net/Makefile @@ -27,7 +27,6 @@ obj-$(CONFIG_NET_KEY) += key/ obj-$(CONFIG_BRIDGE) += bridge/ obj-$(CONFIG_NET_DSA) += dsa/ obj-$(CONFIG_IPX) += ipx/ -obj-$(CONFIG_ATALK) += appletalk/ obj-$(CONFIG_WAN_ROUTER) += wanrouter/ obj-$(CONFIG_X25) += x25/ obj-$(CONFIG_LAPB) += lapb/ diff --git a/net/appletalk/Makefile b/net/appletalk/Makefile deleted file mode 100644 index 5cda56edef57..000000000000 --- a/net/appletalk/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for the Linux AppleTalk layer. -# - -obj-$(CONFIG_ATALK) += appletalk.o - -appletalk-y := aarp.o ddp.o dev.o -appletalk-$(CONFIG_PROC_FS) += atalk_proc.o -appletalk-$(CONFIG_SYSCTL) += sysctl_net_atalk.o diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c deleted file mode 100644 index 50dce7981321..000000000000 --- a/net/appletalk/aarp.c +++ /dev/null @@ -1,1063 +0,0 @@ -/* - * AARP: An implementation of the AppleTalk AARP protocol for - * Ethernet 'ELAP'. - * - * Alan Cox - * - * This doesn't fit cleanly with the IP arp. Potentially we can use - * the generic neighbour discovery code to clean this up. - * - * FIXME: - * We ought to handle the retransmits with a single list and a - * separate fast timer for when it is needed. - * Use neighbour discovery code. - * Token Ring Support. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * - * References: - * Inside AppleTalk (2nd Ed). - * Fixes: - * Jaume Grau - flush caches on AARP_PROBE - * Rob Newberry - Added proxy AARP and AARP proc fs, - * moved probing from DDP module. - * Arnaldo C. Melo - don't mangle rx packets - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -int sysctl_aarp_expiry_time = AARP_EXPIRY_TIME; -int sysctl_aarp_tick_time = AARP_TICK_TIME; -int sysctl_aarp_retransmit_limit = AARP_RETRANSMIT_LIMIT; -int sysctl_aarp_resolve_time = AARP_RESOLVE_TIME; - -/* Lists of aarp entries */ -/** - * struct aarp_entry - AARP entry - * @last_sent - Last time we xmitted the aarp request - * @packet_queue - Queue of frames wait for resolution - * @status - Used for proxy AARP - * expires_at - Entry expiry time - * target_addr - DDP Address - * dev - Device to use - * hwaddr - Physical i/f address of target/router - * xmit_count - When this hits 10 we give up - * next - Next entry in chain - */ -struct aarp_entry { - /* These first two are only used for unresolved entries */ - unsigned long last_sent; - struct sk_buff_head packet_queue; - int status; - unsigned long expires_at; - struct atalk_addr target_addr; - struct net_device *dev; - char hwaddr[6]; - unsigned short xmit_count; - struct aarp_entry *next; -}; - -/* Hashed list of resolved, unresolved and proxy entries */ -static struct aarp_entry *resolved[AARP_HASH_SIZE]; -static struct aarp_entry *unresolved[AARP_HASH_SIZE]; -static struct aarp_entry *proxies[AARP_HASH_SIZE]; -static int unresolved_count; - -/* One lock protects it all. */ -static DEFINE_RWLOCK(aarp_lock); - -/* Used to walk the list and purge/kick entries. */ -static struct timer_list aarp_timer; - -/* - * Delete an aarp queue - * - * Must run under aarp_lock. - */ -static void __aarp_expire(struct aarp_entry *a) -{ - skb_queue_purge(&a->packet_queue); - kfree(a); -} - -/* - * Send an aarp queue entry request - * - * Must run under aarp_lock. - */ -static void __aarp_send_query(struct aarp_entry *a) -{ - static unsigned char aarp_eth_multicast[ETH_ALEN] = - { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; - struct net_device *dev = a->dev; - struct elapaarp *eah; - int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; - struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); - struct atalk_addr *sat = atalk_find_dev_addr(dev); - - if (!skb) - return; - - if (!sat) { - kfree_skb(skb); - return; - } - - /* Set up the buffer */ - skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); - skb_reset_network_header(skb); - skb_reset_transport_header(skb); - skb_put(skb, sizeof(*eah)); - skb->protocol = htons(ETH_P_ATALK); - skb->dev = dev; - eah = aarp_hdr(skb); - - /* Set up the ARP */ - eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); - eah->pa_type = htons(ETH_P_ATALK); - eah->hw_len = ETH_ALEN; - eah->pa_len = AARP_PA_ALEN; - eah->function = htons(AARP_REQUEST); - - memcpy(eah->hw_src, dev->dev_addr, ETH_ALEN); - - eah->pa_src_zero = 0; - eah->pa_src_net = sat->s_net; - eah->pa_src_node = sat->s_node; - - memset(eah->hw_dst, '\0', ETH_ALEN); - - eah->pa_dst_zero = 0; - eah->pa_dst_net = a->target_addr.s_net; - eah->pa_dst_node = a->target_addr.s_node; - - /* Send it */ - aarp_dl->request(aarp_dl, skb, aarp_eth_multicast); - /* Update the sending count */ - a->xmit_count++; - a->last_sent = jiffies; -} - -/* This runs under aarp_lock and in softint context, so only atomic memory - * allocations can be used. */ -static void aarp_send_reply(struct net_device *dev, struct atalk_addr *us, - struct atalk_addr *them, unsigned char *sha) -{ - struct elapaarp *eah; - int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; - struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); - - if (!skb) - return; - - /* Set up the buffer */ - skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); - skb_reset_network_header(skb); - skb_reset_transport_header(skb); - skb_put(skb, sizeof(*eah)); - skb->protocol = htons(ETH_P_ATALK); - skb->dev = dev; - eah = aarp_hdr(skb); - - /* Set up the ARP */ - eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); - eah->pa_type = htons(ETH_P_ATALK); - eah->hw_len = ETH_ALEN; - eah->pa_len = AARP_PA_ALEN; - eah->function = htons(AARP_REPLY); - - memcpy(eah->hw_src, dev->dev_addr, ETH_ALEN); - - eah->pa_src_zero = 0; - eah->pa_src_net = us->s_net; - eah->pa_src_node = us->s_node; - - if (!sha) - memset(eah->hw_dst, '\0', ETH_ALEN); - else - memcpy(eah->hw_dst, sha, ETH_ALEN); - - eah->pa_dst_zero = 0; - eah->pa_dst_net = them->s_net; - eah->pa_dst_node = them->s_node; - - /* Send it */ - aarp_dl->request(aarp_dl, skb, sha); -} - -/* - * Send probe frames. Called from aarp_probe_network and - * aarp_proxy_probe_network. - */ - -static void aarp_send_probe(struct net_device *dev, struct atalk_addr *us) -{ - struct elapaarp *eah; - int len = dev->hard_header_len + sizeof(*eah) + aarp_dl->header_length; - struct sk_buff *skb = alloc_skb(len, GFP_ATOMIC); - static unsigned char aarp_eth_multicast[ETH_ALEN] = - { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; - - if (!skb) - return; - - /* Set up the buffer */ - skb_reserve(skb, dev->hard_header_len + aarp_dl->header_length); - skb_reset_network_header(skb); - skb_reset_transport_header(skb); - skb_put(skb, sizeof(*eah)); - skb->protocol = htons(ETH_P_ATALK); - skb->dev = dev; - eah = aarp_hdr(skb); - - /* Set up the ARP */ - eah->hw_type = htons(AARP_HW_TYPE_ETHERNET); - eah->pa_type = htons(ETH_P_ATALK); - eah->hw_len = ETH_ALEN; - eah->pa_len = AARP_PA_ALEN; - eah->function = htons(AARP_PROBE); - - memcpy(eah->hw_src, dev->dev_addr, ETH_ALEN); - - eah->pa_src_zero = 0; - eah->pa_src_net = us->s_net; - eah->pa_src_node = us->s_node; - - memset(eah->hw_dst, '\0', ETH_ALEN); - - eah->pa_dst_zero = 0; - eah->pa_dst_net = us->s_net; - eah->pa_dst_node = us->s_node; - - /* Send it */ - aarp_dl->request(aarp_dl, skb, aarp_eth_multicast); -} - -/* - * Handle an aarp timer expire - * - * Must run under the aarp_lock. - */ - -static void __aarp_expire_timer(struct aarp_entry **n) -{ - struct aarp_entry *t; - - while (*n) - /* Expired ? */ - if (time_after(jiffies, (*n)->expires_at)) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } else - n = &((*n)->next); -} - -/* - * Kick all pending requests 5 times a second. - * - * Must run under the aarp_lock. - */ -static void __aarp_kick(struct aarp_entry **n) -{ - struct aarp_entry *t; - - while (*n) - /* Expired: if this will be the 11th tx, we delete instead. */ - if ((*n)->xmit_count >= sysctl_aarp_retransmit_limit) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } else { - __aarp_send_query(*n); - n = &((*n)->next); - } -} - -/* - * A device has gone down. Take all entries referring to the device - * and remove them. - * - * Must run under the aarp_lock. - */ -static void __aarp_expire_device(struct aarp_entry **n, struct net_device *dev) -{ - struct aarp_entry *t; - - while (*n) - if ((*n)->dev == dev) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } else - n = &((*n)->next); -} - -/* Handle the timer event */ -static void aarp_expire_timeout(unsigned long unused) -{ - int ct; - - write_lock_bh(&aarp_lock); - - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_timer(&resolved[ct]); - __aarp_kick(&unresolved[ct]); - __aarp_expire_timer(&unresolved[ct]); - __aarp_expire_timer(&proxies[ct]); - } - - write_unlock_bh(&aarp_lock); - mod_timer(&aarp_timer, jiffies + - (unresolved_count ? sysctl_aarp_tick_time : - sysctl_aarp_expiry_time)); -} - -/* Network device notifier chain handler. */ -static int aarp_device_event(struct notifier_block *this, unsigned long event, - void *ptr) -{ - struct net_device *dev = ptr; - int ct; - - if (!net_eq(dev_net(dev), &init_net)) - return NOTIFY_DONE; - - if (event == NETDEV_DOWN) { - write_lock_bh(&aarp_lock); - - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_device(&resolved[ct], dev); - __aarp_expire_device(&unresolved[ct], dev); - __aarp_expire_device(&proxies[ct], dev); - } - - write_unlock_bh(&aarp_lock); - } - return NOTIFY_DONE; -} - -/* Expire all entries in a hash chain */ -static void __aarp_expire_all(struct aarp_entry **n) -{ - struct aarp_entry *t; - - while (*n) { - t = *n; - *n = (*n)->next; - __aarp_expire(t); - } -} - -/* Cleanup all hash chains -- module unloading */ -static void aarp_purge(void) -{ - int ct; - - write_lock_bh(&aarp_lock); - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_all(&resolved[ct]); - __aarp_expire_all(&unresolved[ct]); - __aarp_expire_all(&proxies[ct]); - } - write_unlock_bh(&aarp_lock); -} - -/* - * Create a new aarp entry. This must use GFP_ATOMIC because it - * runs while holding spinlocks. - */ -static struct aarp_entry *aarp_alloc(void) -{ - struct aarp_entry *a = kmalloc(sizeof(*a), GFP_ATOMIC); - - if (a) - skb_queue_head_init(&a->packet_queue); - return a; -} - -/* - * Find an entry. We might return an expired but not yet purged entry. We - * don't care as it will do no harm. - * - * This must run under the aarp_lock. - */ -static struct aarp_entry *__aarp_find_entry(struct aarp_entry *list, - struct net_device *dev, - struct atalk_addr *sat) -{ - while (list) { - if (list->target_addr.s_net == sat->s_net && - list->target_addr.s_node == sat->s_node && - list->dev == dev) - break; - list = list->next; - } - - return list; -} - -/* Called from the DDP code, and thus must be exported. */ -void aarp_proxy_remove(struct net_device *dev, struct atalk_addr *sa) -{ - int hash = sa->s_node % (AARP_HASH_SIZE - 1); - struct aarp_entry *a; - - write_lock_bh(&aarp_lock); - - a = __aarp_find_entry(proxies[hash], dev, sa); - if (a) - a->expires_at = jiffies - 1; - - write_unlock_bh(&aarp_lock); -} - -/* This must run under aarp_lock. */ -static struct atalk_addr *__aarp_proxy_find(struct net_device *dev, - struct atalk_addr *sa) -{ - int hash = sa->s_node % (AARP_HASH_SIZE - 1); - struct aarp_entry *a = __aarp_find_entry(proxies[hash], dev, sa); - - return a ? sa : NULL; -} - -/* - * Probe a Phase 1 device or a device that requires its Net:Node to - * be set via an ioctl. - */ -static void aarp_send_probe_phase1(struct atalk_iface *iface) -{ - struct ifreq atreq; - struct sockaddr_at *sa = (struct sockaddr_at *)&atreq.ifr_addr; - const struct net_device_ops *ops = iface->dev->netdev_ops; - - sa->sat_addr.s_node = iface->address.s_node; - sa->sat_addr.s_net = ntohs(iface->address.s_net); - - /* We pass the Net:Node to the drivers/cards by a Device ioctl. */ - if (!(ops->ndo_do_ioctl(iface->dev, &atreq, SIOCSIFADDR))) { - ops->ndo_do_ioctl(iface->dev, &atreq, SIOCGIFADDR); - if (iface->address.s_net != htons(sa->sat_addr.s_net) || - iface->address.s_node != sa->sat_addr.s_node) - iface->status |= ATIF_PROBE_FAIL; - - iface->address.s_net = htons(sa->sat_addr.s_net); - iface->address.s_node = sa->sat_addr.s_node; - } -} - - -void aarp_probe_network(struct atalk_iface *atif) -{ - if (atif->dev->type == ARPHRD_LOCALTLK || - atif->dev->type == ARPHRD_PPP) - aarp_send_probe_phase1(atif); - else { - unsigned int count; - - for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) { - aarp_send_probe(atif->dev, &atif->address); - - /* Defer 1/10th */ - msleep(100); - - if (atif->status & ATIF_PROBE_FAIL) - break; - } - } -} - -int aarp_proxy_probe_network(struct atalk_iface *atif, struct atalk_addr *sa) -{ - int hash, retval = -EPROTONOSUPPORT; - struct aarp_entry *entry; - unsigned int count; - - /* - * we don't currently support LocalTalk or PPP for proxy AARP; - * if someone wants to try and add it, have fun - */ - if (atif->dev->type == ARPHRD_LOCALTLK || - atif->dev->type == ARPHRD_PPP) - goto out; - - /* - * create a new AARP entry with the flags set to be published -- - * we need this one to hang around even if it's in use - */ - entry = aarp_alloc(); - retval = -ENOMEM; - if (!entry) - goto out; - - entry->expires_at = -1; - entry->status = ATIF_PROBE; - entry->target_addr.s_node = sa->s_node; - entry->target_addr.s_net = sa->s_net; - entry->dev = atif->dev; - - write_lock_bh(&aarp_lock); - - hash = sa->s_node % (AARP_HASH_SIZE - 1); - entry->next = proxies[hash]; - proxies[hash] = entry; - - for (count = 0; count < AARP_RETRANSMIT_LIMIT; count++) { - aarp_send_probe(atif->dev, sa); - - /* Defer 1/10th */ - write_unlock_bh(&aarp_lock); - msleep(100); - write_lock_bh(&aarp_lock); - - if (entry->status & ATIF_PROBE_FAIL) - break; - } - - if (entry->status & ATIF_PROBE_FAIL) { - entry->expires_at = jiffies - 1; /* free the entry */ - retval = -EADDRINUSE; /* return network full */ - } else { /* clear the probing flag */ - entry->status &= ~ATIF_PROBE; - retval = 1; - } - - write_unlock_bh(&aarp_lock); -out: - return retval; -} - -/* Send a DDP frame */ -int aarp_send_ddp(struct net_device *dev, struct sk_buff *skb, - struct atalk_addr *sa, void *hwaddr) -{ - static char ddp_eth_multicast[ETH_ALEN] = - { 0x09, 0x00, 0x07, 0xFF, 0xFF, 0xFF }; - int hash; - struct aarp_entry *a; - - skb_reset_network_header(skb); - - /* Check for LocalTalk first */ - if (dev->type == ARPHRD_LOCALTLK) { - struct atalk_addr *at = atalk_find_dev_addr(dev); - struct ddpehdr *ddp = (struct ddpehdr *)skb->data; - int ft = 2; - - /* - * Compressible ? - * - * IFF: src_net == dest_net == device_net - * (zero matches anything) - */ - - if ((!ddp->deh_snet || at->s_net == ddp->deh_snet) && - (!ddp->deh_dnet || at->s_net == ddp->deh_dnet)) { - skb_pull(skb, sizeof(*ddp) - 4); - - /* - * The upper two remaining bytes are the port - * numbers we just happen to need. Now put the - * length in the lower two. - */ - *((__be16 *)skb->data) = htons(skb->len); - ft = 1; - } - /* - * Nice and easy. No AARP type protocols occur here so we can - * just shovel it out with a 3 byte LLAP header - */ - - skb_push(skb, 3); - skb->data[0] = sa->s_node; - skb->data[1] = at->s_node; - skb->data[2] = ft; - skb->dev = dev; - goto sendit; - } - - /* On a PPP link we neither compress nor aarp. */ - if (dev->type == ARPHRD_PPP) { - skb->protocol = htons(ETH_P_PPPTALK); - skb->dev = dev; - goto sendit; - } - - /* Non ELAP we cannot do. */ - if (dev->type != ARPHRD_ETHER) - goto free_it; - - skb->dev = dev; - skb->protocol = htons(ETH_P_ATALK); - hash = sa->s_node % (AARP_HASH_SIZE - 1); - - /* Do we have a resolved entry? */ - if (sa->s_node == ATADDR_BCAST) { - /* Send it */ - ddp_dl->request(ddp_dl, skb, ddp_eth_multicast); - goto sent; - } - - write_lock_bh(&aarp_lock); - a = __aarp_find_entry(resolved[hash], dev, sa); - - if (a) { /* Return 1 and fill in the address */ - a->expires_at = jiffies + (sysctl_aarp_expiry_time * 10); - ddp_dl->request(ddp_dl, skb, a->hwaddr); - write_unlock_bh(&aarp_lock); - goto sent; - } - - /* Do we have an unresolved entry: This is the less common path */ - a = __aarp_find_entry(unresolved[hash], dev, sa); - if (a) { /* Queue onto the unresolved queue */ - skb_queue_tail(&a->packet_queue, skb); - goto out_unlock; - } - - /* Allocate a new entry */ - a = aarp_alloc(); - if (!a) { - /* Whoops slipped... good job it's an unreliable protocol 8) */ - write_unlock_bh(&aarp_lock); - goto free_it; - } - - /* Set up the queue */ - skb_queue_tail(&a->packet_queue, skb); - a->expires_at = jiffies + sysctl_aarp_resolve_time; - a->dev = dev; - a->next = unresolved[hash]; - a->target_addr = *sa; - a->xmit_count = 0; - unresolved[hash] = a; - unresolved_count++; - - /* Send an initial request for the address */ - __aarp_send_query(a); - - /* - * Switch to fast timer if needed (That is if this is the first - * unresolved entry to get added) - */ - - if (unresolved_count == 1) - mod_timer(&aarp_timer, jiffies + sysctl_aarp_tick_time); - - /* Now finally, it is safe to drop the lock. */ -out_unlock: - write_unlock_bh(&aarp_lock); - - /* Tell the ddp layer we have taken over for this frame. */ - goto sent; - -sendit: - if (skb->sk) - skb->priority = skb->sk->sk_priority; - if (dev_queue_xmit(skb)) - goto drop; -sent: - return NET_XMIT_SUCCESS; -free_it: - kfree_skb(skb); -drop: - return NET_XMIT_DROP; -} -EXPORT_SYMBOL(aarp_send_ddp); - -/* - * An entry in the aarp unresolved queue has become resolved. Send - * all the frames queued under it. - * - * Must run under aarp_lock. - */ -static void __aarp_resolved(struct aarp_entry **list, struct aarp_entry *a, - int hash) -{ - struct sk_buff *skb; - - while (*list) - if (*list == a) { - unresolved_count--; - *list = a->next; - - /* Move into the resolved list */ - a->next = resolved[hash]; - resolved[hash] = a; - - /* Kick frames off */ - while ((skb = skb_dequeue(&a->packet_queue)) != NULL) { - a->expires_at = jiffies + - sysctl_aarp_expiry_time * 10; - ddp_dl->request(ddp_dl, skb, a->hwaddr); - } - } else - list = &((*list)->next); -} - -/* - * This is called by the SNAP driver whenever we see an AARP SNAP - * frame. We currently only support Ethernet. - */ -static int aarp_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) -{ - struct elapaarp *ea = aarp_hdr(skb); - int hash, ret = 0; - __u16 function; - struct aarp_entry *a; - struct atalk_addr sa, *ma, da; - struct atalk_iface *ifa; - - if (!net_eq(dev_net(dev), &init_net)) - goto out0; - - /* We only do Ethernet SNAP AARP. */ - if (dev->type != ARPHRD_ETHER) - goto out0; - - /* Frame size ok? */ - if (!skb_pull(skb, sizeof(*ea))) - goto out0; - - function = ntohs(ea->function); - - /* Sanity check fields. */ - if (function < AARP_REQUEST || function > AARP_PROBE || - ea->hw_len != ETH_ALEN || ea->pa_len != AARP_PA_ALEN || - ea->pa_src_zero || ea->pa_dst_zero) - goto out0; - - /* Looks good. */ - hash = ea->pa_src_node % (AARP_HASH_SIZE - 1); - - /* Build an address. */ - sa.s_node = ea->pa_src_node; - sa.s_net = ea->pa_src_net; - - /* Process the packet. Check for replies of me. */ - ifa = atalk_find_dev(dev); - if (!ifa) - goto out1; - - if (ifa->status & ATIF_PROBE && - ifa->address.s_node == ea->pa_dst_node && - ifa->address.s_net == ea->pa_dst_net) { - ifa->status |= ATIF_PROBE_FAIL; /* Fail the probe (in use) */ - goto out1; - } - - /* Check for replies of proxy AARP entries */ - da.s_node = ea->pa_dst_node; - da.s_net = ea->pa_dst_net; - - write_lock_bh(&aarp_lock); - a = __aarp_find_entry(proxies[hash], dev, &da); - - if (a && a->status & ATIF_PROBE) { - a->status |= ATIF_PROBE_FAIL; - /* - * we do not respond to probe or request packets for - * this address while we are probing this address - */ - goto unlock; - } - - switch (function) { - case AARP_REPLY: - if (!unresolved_count) /* Speed up */ - break; - - /* Find the entry. */ - a = __aarp_find_entry(unresolved[hash], dev, &sa); - if (!a || dev != a->dev) - break; - - /* We can fill one in - this is good. */ - memcpy(a->hwaddr, ea->hw_src, ETH_ALEN); - __aarp_resolved(&unresolved[hash], a, hash); - if (!unresolved_count) - mod_timer(&aarp_timer, - jiffies + sysctl_aarp_expiry_time); - break; - - case AARP_REQUEST: - case AARP_PROBE: - - /* - * If it is my address set ma to my address and reply. - * We can treat probe and request the same. Probe - * simply means we shouldn't cache the querying host, - * as in a probe they are proposing an address not - * using one. - * - * Support for proxy-AARP added. We check if the - * address is one of our proxies before we toss the - * packet out. - */ - - sa.s_node = ea->pa_dst_node; - sa.s_net = ea->pa_dst_net; - - /* See if we have a matching proxy. */ - ma = __aarp_proxy_find(dev, &sa); - if (!ma) - ma = &ifa->address; - else { /* We need to make a copy of the entry. */ - da.s_node = sa.s_node; - da.s_net = sa.s_net; - ma = &da; - } - - if (function == AARP_PROBE) { - /* - * A probe implies someone trying to get an - * address. So as a precaution flush any - * entries we have for this address. - */ - a = __aarp_find_entry(resolved[sa.s_node % - (AARP_HASH_SIZE - 1)], - skb->dev, &sa); - - /* - * Make it expire next tick - that avoids us - * getting into a probe/flush/learn/probe/ - * flush/learn cycle during probing of a slow - * to respond host addr. - */ - if (a) { - a->expires_at = jiffies - 1; - mod_timer(&aarp_timer, jiffies + - sysctl_aarp_tick_time); - } - } - - if (sa.s_node != ma->s_node) - break; - - if (sa.s_net && ma->s_net && sa.s_net != ma->s_net) - break; - - sa.s_node = ea->pa_src_node; - sa.s_net = ea->pa_src_net; - - /* aarp_my_address has found the address to use for us. - */ - aarp_send_reply(dev, ma, &sa, ea->hw_src); - break; - } - -unlock: - write_unlock_bh(&aarp_lock); -out1: - ret = 1; -out0: - kfree_skb(skb); - return ret; -} - -static struct notifier_block aarp_notifier = { - .notifier_call = aarp_device_event, -}; - -static unsigned char aarp_snap_id[] = { 0x00, 0x00, 0x00, 0x80, 0xF3 }; - -void __init aarp_proto_init(void) -{ - aarp_dl = register_snap_client(aarp_snap_id, aarp_rcv); - if (!aarp_dl) - printk(KERN_CRIT "Unable to register AARP with SNAP.\n"); - setup_timer(&aarp_timer, aarp_expire_timeout, 0); - aarp_timer.expires = jiffies + sysctl_aarp_expiry_time; - add_timer(&aarp_timer); - register_netdevice_notifier(&aarp_notifier); -} - -/* Remove the AARP entries associated with a device. */ -void aarp_device_down(struct net_device *dev) -{ - int ct; - - write_lock_bh(&aarp_lock); - - for (ct = 0; ct < AARP_HASH_SIZE; ct++) { - __aarp_expire_device(&resolved[ct], dev); - __aarp_expire_device(&unresolved[ct], dev); - __aarp_expire_device(&proxies[ct], dev); - } - - write_unlock_bh(&aarp_lock); -} - -#ifdef CONFIG_PROC_FS -struct aarp_iter_state { - int bucket; - struct aarp_entry **table; -}; - -/* - * Get the aarp entry that is in the chain described - * by the iterator. - * If pos is set then skip till that index. - * pos = 1 is the first entry - */ -static struct aarp_entry *iter_next(struct aarp_iter_state *iter, loff_t *pos) -{ - int ct = iter->bucket; - struct aarp_entry **table = iter->table; - loff_t off = 0; - struct aarp_entry *entry; - - rescan: - while(ct < AARP_HASH_SIZE) { - for (entry = table[ct]; entry; entry = entry->next) { - if (!pos || ++off == *pos) { - iter->table = table; - iter->bucket = ct; - return entry; - } - } - ++ct; - } - - if (table == resolved) { - ct = 0; - table = unresolved; - goto rescan; - } - if (table == unresolved) { - ct = 0; - table = proxies; - goto rescan; - } - return NULL; -} - -static void *aarp_seq_start(struct seq_file *seq, loff_t *pos) - __acquires(aarp_lock) -{ - struct aarp_iter_state *iter = seq->private; - - read_lock_bh(&aarp_lock); - iter->table = resolved; - iter->bucket = 0; - - return *pos ? iter_next(iter, pos) : SEQ_START_TOKEN; -} - -static void *aarp_seq_next(struct seq_file *seq, void *v, loff_t *pos) -{ - struct aarp_entry *entry = v; - struct aarp_iter_state *iter = seq->private; - - ++*pos; - - /* first line after header */ - if (v == SEQ_START_TOKEN) - entry = iter_next(iter, NULL); - - /* next entry in current bucket */ - else if (entry->next) - entry = entry->next; - - /* next bucket or table */ - else { - ++iter->bucket; - entry = iter_next(iter, NULL); - } - return entry; -} - -static void aarp_seq_stop(struct seq_file *seq, void *v) - __releases(aarp_lock) -{ - read_unlock_bh(&aarp_lock); -} - -static const char *dt2str(unsigned long ticks) -{ - static char buf[32]; - - sprintf(buf, "%ld.%02ld", ticks / HZ, ((ticks % HZ) * 100 ) / HZ); - - return buf; -} - -static int aarp_seq_show(struct seq_file *seq, void *v) -{ - struct aarp_iter_state *iter = seq->private; - struct aarp_entry *entry = v; - unsigned long now = jiffies; - - if (v == SEQ_START_TOKEN) - seq_puts(seq, - "Address Interface Hardware Address" - " Expires LastSend Retry Status\n"); - else { - seq_printf(seq, "%04X:%02X %-12s", - ntohs(entry->target_addr.s_net), - (unsigned int) entry->target_addr.s_node, - entry->dev ? entry->dev->name : "????"); - seq_printf(seq, "%pM", entry->hwaddr); - seq_printf(seq, " %8s", - dt2str((long)entry->expires_at - (long)now)); - if (iter->table == unresolved) - seq_printf(seq, " %8s %6hu", - dt2str(now - entry->last_sent), - entry->xmit_count); - else - seq_puts(seq, " "); - seq_printf(seq, " %s\n", - (iter->table == resolved) ? "resolved" - : (iter->table == unresolved) ? "unresolved" - : (iter->table == proxies) ? "proxies" - : "unknown"); - } - return 0; -} - -static const struct seq_operations aarp_seq_ops = { - .start = aarp_seq_start, - .next = aarp_seq_next, - .stop = aarp_seq_stop, - .show = aarp_seq_show, -}; - -static int aarp_seq_open(struct inode *inode, struct file *file) -{ - return seq_open_private(file, &aarp_seq_ops, - sizeof(struct aarp_iter_state)); -} - -const struct file_operations atalk_seq_arp_fops = { - .owner = THIS_MODULE, - .open = aarp_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; -#endif - -/* General module cleanup. Called from cleanup_module() in ddp.c. */ -void aarp_cleanup_module(void) -{ - del_timer_sync(&aarp_timer); - unregister_netdevice_notifier(&aarp_notifier); - unregister_snap_client(aarp_dl); - aarp_purge(); -} diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c deleted file mode 100644 index 6ef0e761e5de..000000000000 --- a/net/appletalk/atalk_proc.c +++ /dev/null @@ -1,301 +0,0 @@ -/* - * atalk_proc.c - proc support for Appletalk - * - * Copyright(c) Arnaldo Carvalho de Melo - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation, version 2. - */ - -#include -#include -#include -#include -#include -#include - - -static __inline__ struct atalk_iface *atalk_get_interface_idx(loff_t pos) -{ - struct atalk_iface *i; - - for (i = atalk_interfaces; pos && i; i = i->next) - --pos; - - return i; -} - -static void *atalk_seq_interface_start(struct seq_file *seq, loff_t *pos) - __acquires(atalk_interfaces_lock) -{ - loff_t l = *pos; - - read_lock_bh(&atalk_interfaces_lock); - return l ? atalk_get_interface_idx(--l) : SEQ_START_TOKEN; -} - -static void *atalk_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) -{ - struct atalk_iface *i; - - ++*pos; - if (v == SEQ_START_TOKEN) { - i = NULL; - if (atalk_interfaces) - i = atalk_interfaces; - goto out; - } - i = v; - i = i->next; -out: - return i; -} - -static void atalk_seq_interface_stop(struct seq_file *seq, void *v) - __releases(atalk_interfaces_lock) -{ - read_unlock_bh(&atalk_interfaces_lock); -} - -static int atalk_seq_interface_show(struct seq_file *seq, void *v) -{ - struct atalk_iface *iface; - - if (v == SEQ_START_TOKEN) { - seq_puts(seq, "Interface Address Networks " - "Status\n"); - goto out; - } - - iface = v; - seq_printf(seq, "%-16s %04X:%02X %04X-%04X %d\n", - iface->dev->name, ntohs(iface->address.s_net), - iface->address.s_node, ntohs(iface->nets.nr_firstnet), - ntohs(iface->nets.nr_lastnet), iface->status); -out: - return 0; -} - -static __inline__ struct atalk_route *atalk_get_route_idx(loff_t pos) -{ - struct atalk_route *r; - - for (r = atalk_routes; pos && r; r = r->next) - --pos; - - return r; -} - -static void *atalk_seq_route_start(struct seq_file *seq, loff_t *pos) - __acquires(atalk_routes_lock) -{ - loff_t l = *pos; - - read_lock_bh(&atalk_routes_lock); - return l ? atalk_get_route_idx(--l) : SEQ_START_TOKEN; -} - -static void *atalk_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) -{ - struct atalk_route *r; - - ++*pos; - if (v == SEQ_START_TOKEN) { - r = NULL; - if (atalk_routes) - r = atalk_routes; - goto out; - } - r = v; - r = r->next; -out: - return r; -} - -static void atalk_seq_route_stop(struct seq_file *seq, void *v) - __releases(atalk_routes_lock) -{ - read_unlock_bh(&atalk_routes_lock); -} - -static int atalk_seq_route_show(struct seq_file *seq, void *v) -{ - struct atalk_route *rt; - - if (v == SEQ_START_TOKEN) { - seq_puts(seq, "Target Router Flags Dev\n"); - goto out; - } - - if (atrtr_default.dev) { - rt = &atrtr_default; - seq_printf(seq, "Default %04X:%02X %-4d %s\n", - ntohs(rt->gateway.s_net), rt->gateway.s_node, - rt->flags, rt->dev->name); - } - - rt = v; - seq_printf(seq, "%04X:%02X %04X:%02X %-4d %s\n", - ntohs(rt->target.s_net), rt->target.s_node, - ntohs(rt->gateway.s_net), rt->gateway.s_node, - rt->flags, rt->dev->name); -out: - return 0; -} - -static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos) - __acquires(atalk_sockets_lock) -{ - read_lock_bh(&atalk_sockets_lock); - return seq_hlist_start_head(&atalk_sockets, *pos); -} - -static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) -{ - return seq_hlist_next(v, &atalk_sockets, pos); -} - -static void atalk_seq_socket_stop(struct seq_file *seq, void *v) - __releases(atalk_sockets_lock) -{ - read_unlock_bh(&atalk_sockets_lock); -} - -static int atalk_seq_socket_show(struct seq_file *seq, void *v) -{ - struct sock *s; - struct atalk_sock *at; - - if (v == SEQ_START_TOKEN) { - seq_printf(seq, "Type Local_addr Remote_addr Tx_queue " - "Rx_queue St UID\n"); - goto out; - } - - s = sk_entry(v); - at = at_sk(s); - - seq_printf(seq, "%02X %04X:%02X:%02X %04X:%02X:%02X %08X:%08X " - "%02X %d\n", - s->sk_type, ntohs(at->src_net), at->src_node, at->src_port, - ntohs(at->dest_net), at->dest_node, at->dest_port, - sk_wmem_alloc_get(s), - sk_rmem_alloc_get(s), - s->sk_state, SOCK_INODE(s->sk_socket)->i_uid); -out: - return 0; -} - -static const struct seq_operations atalk_seq_interface_ops = { - .start = atalk_seq_interface_start, - .next = atalk_seq_interface_next, - .stop = atalk_seq_interface_stop, - .show = atalk_seq_interface_show, -}; - -static const struct seq_operations atalk_seq_route_ops = { - .start = atalk_seq_route_start, - .next = atalk_seq_route_next, - .stop = atalk_seq_route_stop, - .show = atalk_seq_route_show, -}; - -static const struct seq_operations atalk_seq_socket_ops = { - .start = atalk_seq_socket_start, - .next = atalk_seq_socket_next, - .stop = atalk_seq_socket_stop, - .show = atalk_seq_socket_show, -}; - -static int atalk_seq_interface_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &atalk_seq_interface_ops); -} - -static int atalk_seq_route_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &atalk_seq_route_ops); -} - -static int atalk_seq_socket_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &atalk_seq_socket_ops); -} - -static const struct file_operations atalk_seq_interface_fops = { - .owner = THIS_MODULE, - .open = atalk_seq_interface_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations atalk_seq_route_fops = { - .owner = THIS_MODULE, - .open = atalk_seq_route_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations atalk_seq_socket_fops = { - .owner = THIS_MODULE, - .open = atalk_seq_socket_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static struct proc_dir_entry *atalk_proc_dir; - -int __init atalk_proc_init(void) -{ - struct proc_dir_entry *p; - int rc = -ENOMEM; - - atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net); - if (!atalk_proc_dir) - goto out; - - p = proc_create("interface", S_IRUGO, atalk_proc_dir, - &atalk_seq_interface_fops); - if (!p) - goto out_interface; - - p = proc_create("route", S_IRUGO, atalk_proc_dir, - &atalk_seq_route_fops); - if (!p) - goto out_route; - - p = proc_create("socket", S_IRUGO, atalk_proc_dir, - &atalk_seq_socket_fops); - if (!p) - goto out_socket; - - p = proc_create("arp", S_IRUGO, atalk_proc_dir, &atalk_seq_arp_fops); - if (!p) - goto out_arp; - - rc = 0; -out: - return rc; -out_arp: - remove_proc_entry("socket", atalk_proc_dir); -out_socket: - remove_proc_entry("route", atalk_proc_dir); -out_route: - remove_proc_entry("interface", atalk_proc_dir); -out_interface: - remove_proc_entry("atalk", init_net.proc_net); - goto out; -} - -void __exit atalk_proc_exit(void) -{ - remove_proc_entry("interface", atalk_proc_dir); - remove_proc_entry("route", atalk_proc_dir); - remove_proc_entry("socket", atalk_proc_dir); - remove_proc_entry("arp", atalk_proc_dir); - remove_proc_entry("atalk", init_net.proc_net); -} diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c deleted file mode 100644 index c410b93fda2e..000000000000 --- a/net/appletalk/ddp.c +++ /dev/null @@ -1,1981 +0,0 @@ -/* - * DDP: An implementation of the AppleTalk DDP protocol for - * Ethernet 'ELAP'. - * - * Alan Cox - * - * With more than a little assistance from - * - * Wesley Craig - * - * Fixes: - * Neil Horman : Added missing device ioctls - * Michael Callahan : Made routing work - * Wesley Craig : Fix probing to listen to a - * passed node id. - * Alan Cox : Added send/recvmsg support - * Alan Cox : Moved at. to protinfo in - * socket. - * Alan Cox : Added firewall hooks. - * Alan Cox : Supports new ARPHRD_LOOPBACK - * Christer Weinigel : Routing and /proc fixes. - * Bradford Johnson : LocalTalk. - * Tom Dyas : Module support. - * Alan Cox : Hooks for PPP (based on the - * LocalTalk hook). - * Alan Cox : Posix bits - * Alan Cox/Mike Freeman : Possible fix to NBP problems - * Bradford Johnson : IP-over-DDP (experimental) - * Jay Schulist : Moved IP-over-DDP to its own - * driver file. (ipddp.c & ipddp.h) - * Jay Schulist : Made work as module with - * AppleTalk drivers, cleaned it. - * Rob Newberry : Added proxy AARP and AARP - * procfs, moved probing to AARP - * module. - * Adrian Sun/ - * Michael Zuelsdorff : fix for net.0 packets. don't - * allow illegal ether/tokentalk - * port assignment. we lose a - * valid localtalk port as a - * result. - * Arnaldo C. de Melo : Cleanup, in preparation for - * shared skb support 8) - * Arnaldo C. de Melo : Move proc stuff to atalk_proc.c, - * use seq_file - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -#include -#include -#include -#include -#include /* For TIOCOUTQ/INQ */ -#include -#include -#include -#include -#include -#include -#include -#include -#include "../core/kmap_skb.h" - -struct datalink_proto *ddp_dl, *aarp_dl; -static const struct proto_ops atalk_dgram_ops; - -/**************************************************************************\ -* * -* Handlers for the socket list. * -* * -\**************************************************************************/ - -HLIST_HEAD(atalk_sockets); -DEFINE_RWLOCK(atalk_sockets_lock); - -static inline void __atalk_insert_socket(struct sock *sk) -{ - sk_add_node(sk, &atalk_sockets); -} - -static inline void atalk_remove_socket(struct sock *sk) -{ - write_lock_bh(&atalk_sockets_lock); - sk_del_node_init(sk); - write_unlock_bh(&atalk_sockets_lock); -} - -static struct sock *atalk_search_socket(struct sockaddr_at *to, - struct atalk_iface *atif) -{ - struct sock *s; - struct hlist_node *node; - - read_lock_bh(&atalk_sockets_lock); - sk_for_each(s, node, &atalk_sockets) { - struct atalk_sock *at = at_sk(s); - - if (to->sat_port != at->src_port) - continue; - - if (to->sat_addr.s_net == ATADDR_ANYNET && - to->sat_addr.s_node == ATADDR_BCAST) - goto found; - - if (to->sat_addr.s_net == at->src_net && - (to->sat_addr.s_node == at->src_node || - to->sat_addr.s_node == ATADDR_BCAST || - to->sat_addr.s_node == ATADDR_ANYNODE)) - goto found; - - /* XXXX.0 -- we got a request for this router. make sure - * that the node is appropriately set. */ - if (to->sat_addr.s_node == ATADDR_ANYNODE && - to->sat_addr.s_net != ATADDR_ANYNET && - atif->address.s_node == at->src_node) { - to->sat_addr.s_node = atif->address.s_node; - goto found; - } - } - s = NULL; -found: - read_unlock_bh(&atalk_sockets_lock); - return s; -} - -/** - * atalk_find_or_insert_socket - Try to find a socket matching ADDR - * @sk - socket to insert in the list if it is not there already - * @sat - address to search for - * - * Try to find a socket matching ADDR in the socket list, if found then return - * it. If not, insert SK into the socket list. - * - * This entire operation must execute atomically. - */ -static struct sock *atalk_find_or_insert_socket(struct sock *sk, - struct sockaddr_at *sat) -{ - struct sock *s; - struct hlist_node *node; - struct atalk_sock *at; - - write_lock_bh(&atalk_sockets_lock); - sk_for_each(s, node, &atalk_sockets) { - at = at_sk(s); - - if (at->src_net == sat->sat_addr.s_net && - at->src_node == sat->sat_addr.s_node && - at->src_port == sat->sat_port) - goto found; - } - s = NULL; - __atalk_insert_socket(sk); /* Wheee, it's free, assign and insert. */ -found: - write_unlock_bh(&atalk_sockets_lock); - return s; -} - -static void atalk_destroy_timer(unsigned long data) -{ - struct sock *sk = (struct sock *)data; - - if (sk_has_allocations(sk)) { - sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME; - add_timer(&sk->sk_timer); - } else - sock_put(sk); -} - -static inline void atalk_destroy_socket(struct sock *sk) -{ - atalk_remove_socket(sk); - skb_queue_purge(&sk->sk_receive_queue); - - if (sk_has_allocations(sk)) { - setup_timer(&sk->sk_timer, atalk_destroy_timer, - (unsigned long)sk); - sk->sk_timer.expires = jiffies + SOCK_DESTROY_TIME; - add_timer(&sk->sk_timer); - } else - sock_put(sk); -} - -/**************************************************************************\ -* * -* Routing tables for the AppleTalk socket layer. * -* * -\**************************************************************************/ - -/* Anti-deadlock ordering is atalk_routes_lock --> iface_lock -DaveM */ -struct atalk_route *atalk_routes; -DEFINE_RWLOCK(atalk_routes_lock); - -struct atalk_iface *atalk_interfaces; -DEFINE_RWLOCK(atalk_interfaces_lock); - -/* For probing devices or in a routerless network */ -struct atalk_route atrtr_default; - -/* AppleTalk interface control */ -/* - * Drop a device. Doesn't drop any of its routes - that is the caller's - * problem. Called when we down the interface or delete the address. - */ -static void atif_drop_device(struct net_device *dev) -{ - struct atalk_iface **iface = &atalk_interfaces; - struct atalk_iface *tmp; - - write_lock_bh(&atalk_interfaces_lock); - while ((tmp = *iface) != NULL) { - if (tmp->dev == dev) { - *iface = tmp->next; - dev_put(dev); - kfree(tmp); - dev->atalk_ptr = NULL; - } else - iface = &tmp->next; - } - write_unlock_bh(&atalk_interfaces_lock); -} - -static struct atalk_iface *atif_add_device(struct net_device *dev, - struct atalk_addr *sa) -{ - struct atalk_iface *iface = kzalloc(sizeof(*iface), GFP_KERNEL); - - if (!iface) - goto out; - - dev_hold(dev); - iface->dev = dev; - dev->atalk_ptr = iface; - iface->address = *sa; - iface->status = 0; - - write_lock_bh(&atalk_interfaces_lock); - iface->next = atalk_interfaces; - atalk_interfaces = iface; - write_unlock_bh(&atalk_interfaces_lock); -out: - return iface; -} - -/* Perform phase 2 AARP probing on our tentative address */ -static int atif_probe_device(struct atalk_iface *atif) -{ - int netrange = ntohs(atif->nets.nr_lastnet) - - ntohs(atif->nets.nr_firstnet) + 1; - int probe_net = ntohs(atif->address.s_net); - int probe_node = atif->address.s_node; - int netct, nodect; - - /* Offset the network we start probing with */ - if (probe_net == ATADDR_ANYNET) { - probe_net = ntohs(atif->nets.nr_firstnet); - if (netrange) - probe_net += jiffies % netrange; - } - if (probe_node == ATADDR_ANYNODE) - probe_node = jiffies & 0xFF; - - /* Scan the networks */ - atif->status |= ATIF_PROBE; - for (netct = 0; netct <= netrange; netct++) { - /* Sweep the available nodes from a given start */ - atif->address.s_net = htons(probe_net); - for (nodect = 0; nodect < 256; nodect++) { - atif->address.s_node = (nodect + probe_node) & 0xFF; - if (atif->address.s_node > 0 && - atif->address.s_node < 254) { - /* Probe a proposed address */ - aarp_probe_network(atif); - - if (!(atif->status & ATIF_PROBE_FAIL)) { - atif->status &= ~ATIF_PROBE; - return 0; - } - } - atif->status &= ~ATIF_PROBE_FAIL; - } - probe_net++; - if (probe_net > ntohs(atif->nets.nr_lastnet)) - probe_net = ntohs(atif->nets.nr_firstnet); - } - atif->status &= ~ATIF_PROBE; - - return -EADDRINUSE; /* Network is full... */ -} - - -/* Perform AARP probing for a proxy address */ -static int atif_proxy_probe_device(struct atalk_iface *atif, - struct atalk_addr* proxy_addr) -{ - int netrange = ntohs(atif->nets.nr_lastnet) - - ntohs(atif->nets.nr_firstnet) + 1; - /* we probe the interface's network */ - int probe_net = ntohs(atif->address.s_net); - int probe_node = ATADDR_ANYNODE; /* we'll take anything */ - int netct, nodect; - - /* Offset the network we start probing with */ - if (probe_net == ATADDR_ANYNET) { - probe_net = ntohs(atif->nets.nr_firstnet); - if (netrange) - probe_net += jiffies % netrange; - } - - if (probe_node == ATADDR_ANYNODE) - probe_node = jiffies & 0xFF; - - /* Scan the networks */ - for (netct = 0; netct <= netrange; netct++) { - /* Sweep the available nodes from a given start */ - proxy_addr->s_net = htons(probe_net); - for (nodect = 0; nodect < 256; nodect++) { - proxy_addr->s_node = (nodect + probe_node) & 0xFF; - if (proxy_addr->s_node > 0 && - proxy_addr->s_node < 254) { - /* Tell AARP to probe a proposed address */ - int ret = aarp_proxy_probe_network(atif, - proxy_addr); - - if (ret != -EADDRINUSE) - return ret; - } - } - probe_net++; - if (probe_net > ntohs(atif->nets.nr_lastnet)) - probe_net = ntohs(atif->nets.nr_firstnet); - } - - return -EADDRINUSE; /* Network is full... */ -} - - -struct atalk_addr *atalk_find_dev_addr(struct net_device *dev) -{ - struct atalk_iface *iface = dev->atalk_ptr; - return iface ? &iface->address : NULL; -} - -static struct atalk_addr *atalk_find_primary(void) -{ - struct atalk_iface *fiface = NULL; - struct atalk_addr *retval; - struct atalk_iface *iface; - - /* - * Return a point-to-point interface only if - * there is no non-ptp interface available. - */ - read_lock_bh(&atalk_interfaces_lock); - for (iface = atalk_interfaces; iface; iface = iface->next) { - if (!fiface && !(iface->dev->flags & IFF_LOOPBACK)) - fiface = iface; - if (!(iface->dev->flags & (IFF_LOOPBACK | IFF_POINTOPOINT))) { - retval = &iface->address; - goto out; - } - } - - if (fiface) - retval = &fiface->address; - else if (atalk_interfaces) - retval = &atalk_interfaces->address; - else - retval = NULL; -out: - read_unlock_bh(&atalk_interfaces_lock); - return retval; -} - -/* - * Find a match for 'any network' - ie any of our interfaces with that - * node number will do just nicely. - */ -static struct atalk_iface *atalk_find_anynet(int node, struct net_device *dev) -{ - struct atalk_iface *iface = dev->atalk_ptr; - - if (!iface || iface->status & ATIF_PROBE) - goto out_err; - - if (node != ATADDR_BCAST && - iface->address.s_node != node && - node != ATADDR_ANYNODE) - goto out_err; -out: - return iface; -out_err: - iface = NULL; - goto out; -} - -/* Find a match for a specific network:node pair */ -static struct atalk_iface *atalk_find_interface(__be16 net, int node) -{ - struct atalk_iface *iface; - - read_lock_bh(&atalk_interfaces_lock); - for (iface = atalk_interfaces; iface; iface = iface->next) { - if ((node == ATADDR_BCAST || - node == ATADDR_ANYNODE || - iface->address.s_node == node) && - iface->address.s_net == net && - !(iface->status & ATIF_PROBE)) - break; - - /* XXXX.0 -- net.0 returns the iface associated with net */ - if (node == ATADDR_ANYNODE && net != ATADDR_ANYNET && - ntohs(iface->nets.nr_firstnet) <= ntohs(net) && - ntohs(net) <= ntohs(iface->nets.nr_lastnet)) - break; - } - read_unlock_bh(&atalk_interfaces_lock); - return iface; -} - - -/* - * Find a route for an AppleTalk packet. This ought to get cached in - * the socket (later on...). We know about host routes and the fact - * that a route must be direct to broadcast. - */ -static struct atalk_route *atrtr_find(struct atalk_addr *target) -{ - /* - * we must search through all routes unless we find a - * host route, because some host routes might overlap - * network routes - */ - struct atalk_route *net_route = NULL; - struct atalk_route *r; - - read_lock_bh(&atalk_routes_lock); - for (r = atalk_routes; r; r = r->next) { - if (!(r->flags & RTF_UP)) - continue; - - if (r->target.s_net == target->s_net) { - if (r->flags & RTF_HOST) { - /* - * if this host route is for the target, - * the we're done - */ - if (r->target.s_node == target->s_node) - goto out; - } else - /* - * this route will work if there isn't a - * direct host route, so cache it - */ - net_route = r; - } - } - - /* - * if we found a network route but not a direct host - * route, then return it - */ - if (net_route) - r = net_route; - else if (atrtr_default.dev) - r = &atrtr_default; - else /* No route can be found */ - r = NULL; -out: - read_unlock_bh(&atalk_routes_lock); - return r; -} - - -/* - * Given an AppleTalk network, find the device to use. This can be - * a simple lookup. - */ -struct net_device *atrtr_get_dev(struct atalk_addr *sa) -{ - struct atalk_route *atr = atrtr_find(sa); - return atr ? atr->dev : NULL; -} - -/* Set up a default router */ -static void atrtr_set_default(struct net_device *dev) -{ - atrtr_default.dev = dev; - atrtr_default.flags = RTF_UP; - atrtr_default.gateway.s_net = htons(0); - atrtr_default.gateway.s_node = 0; -} - -/* - * Add a router. Basically make sure it looks valid and stuff the - * entry in the list. While it uses netranges we always set them to one - * entry to work like netatalk. - */ -static int atrtr_create(struct rtentry *r, struct net_device *devhint) -{ - struct sockaddr_at *ta = (struct sockaddr_at *)&r->rt_dst; - struct sockaddr_at *ga = (struct sockaddr_at *)&r->rt_gateway; - struct atalk_route *rt; - struct atalk_iface *iface, *riface; - int retval = -EINVAL; - - /* - * Fixme: Raise/Lower a routing change semaphore for these - * operations. - */ - - /* Validate the request */ - if (ta->sat_family != AF_APPLETALK || - (!devhint && ga->sat_family != AF_APPLETALK)) - goto out; - - /* Now walk the routing table and make our decisions */ - write_lock_bh(&atalk_routes_lock); - for (rt = atalk_routes; rt; rt = rt->next) { - if (r->rt_flags != rt->flags) - continue; - - if (ta->sat_addr.s_net == rt->target.s_net) { - if (!(rt->flags & RTF_HOST)) - break; - if (ta->sat_addr.s_node == rt->target.s_node) - break; - } - } - - if (!devhint) { - riface = NULL; - - read_lock_bh(&atalk_interfaces_lock); - for (iface = atalk_interfaces; iface; iface = iface->next) { - if (!riface && - ntohs(ga->sat_addr.s_net) >= - ntohs(iface->nets.nr_firstnet) && - ntohs(ga->sat_addr.s_net) <= - ntohs(iface->nets.nr_lastnet)) - riface = iface; - - if (ga->sat_addr.s_net == iface->address.s_net && - ga->sat_addr.s_node == iface->address.s_node) - riface = iface; - } - read_unlock_bh(&atalk_interfaces_lock); - - retval = -ENETUNREACH; - if (!riface) - goto out_unlock; - - devhint = riface->dev; - } - - if (!rt) { - rt = kzalloc(sizeof(*rt), GFP_ATOMIC); - - retval = -ENOBUFS; - if (!rt) - goto out_unlock; - - rt->next = atalk_routes; - atalk_routes = rt; - } - - /* Fill in the routing entry */ - rt->target = ta->sat_addr; - dev_hold(devhint); - rt->dev = devhint; - rt->flags = r->rt_flags; - rt->gateway = ga->sat_addr; - - retval = 0; -out_unlock: - write_unlock_bh(&atalk_routes_lock); -out: - return retval; -} - -/* Delete a route. Find it and discard it */ -static int atrtr_delete(struct atalk_addr * addr) -{ - struct atalk_route **r = &atalk_routes; - int retval = 0; - struct atalk_route *tmp; - - write_lock_bh(&atalk_routes_lock); - while ((tmp = *r) != NULL) { - if (tmp->target.s_net == addr->s_net && - (!(tmp->flags&RTF_GATEWAY) || - tmp->target.s_node == addr->s_node)) { - *r = tmp->next; - dev_put(tmp->dev); - kfree(tmp); - goto out; - } - r = &tmp->next; - } - retval = -ENOENT; -out: - write_unlock_bh(&atalk_routes_lock); - return retval; -} - -/* - * Called when a device is downed. Just throw away any routes - * via it. - */ -static void atrtr_device_down(struct net_device *dev) -{ - struct atalk_route **r = &atalk_routes; - struct atalk_route *tmp; - - write_lock_bh(&atalk_routes_lock); - while ((tmp = *r) != NULL) { - if (tmp->dev == dev) { - *r = tmp->next; - dev_put(dev); - kfree(tmp); - } else - r = &tmp->next; - } - write_unlock_bh(&atalk_routes_lock); - - if (atrtr_default.dev == dev) - atrtr_set_default(NULL); -} - -/* Actually down the interface */ -static inline void atalk_dev_down(struct net_device *dev) -{ - atrtr_device_down(dev); /* Remove all routes for the device */ - aarp_device_down(dev); /* Remove AARP entries for the device */ - atif_drop_device(dev); /* Remove the device */ -} - -/* - * A device event has occurred. Watch for devices going down and - * delete our use of them (iface and route). - */ -static int ddp_device_event(struct notifier_block *this, unsigned long event, - void *ptr) -{ - struct net_device *dev = ptr; - - if (!net_eq(dev_net(dev), &init_net)) - return NOTIFY_DONE; - - if (event == NETDEV_DOWN) - /* Discard any use of this */ - atalk_dev_down(dev); - - return NOTIFY_DONE; -} - -/* ioctl calls. Shouldn't even need touching */ -/* Device configuration ioctl calls */ -static int atif_ioctl(int cmd, void __user *arg) -{ - static char aarp_mcast[6] = { 0x09, 0x00, 0x00, 0xFF, 0xFF, 0xFF }; - struct ifreq atreq; - struct atalk_netrange *nr; - struct sockaddr_at *sa; - struct net_device *dev; - struct atalk_iface *atif; - int ct; - int limit; - struct rtentry rtdef; - int add_route; - - if (copy_from_user(&atreq, arg, sizeof(atreq))) - return -EFAULT; - - dev = __dev_get_by_name(&init_net, atreq.ifr_name); - if (!dev) - return -ENODEV; - - sa = (struct sockaddr_at *)&atreq.ifr_addr; - atif = atalk_find_dev(dev); - - switch (cmd) { - case SIOCSIFADDR: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - if (dev->type != ARPHRD_ETHER && - dev->type != ARPHRD_LOOPBACK && - dev->type != ARPHRD_LOCALTLK && - dev->type != ARPHRD_PPP) - return -EPROTONOSUPPORT; - - nr = (struct atalk_netrange *)&sa->sat_zero[0]; - add_route = 1; - - /* - * if this is a point-to-point iface, and we already - * have an iface for this AppleTalk address, then we - * should not add a route - */ - if ((dev->flags & IFF_POINTOPOINT) && - atalk_find_interface(sa->sat_addr.s_net, - sa->sat_addr.s_node)) { - printk(KERN_DEBUG "AppleTalk: point-to-point " - "interface added with " - "existing address\n"); - add_route = 0; - } - - /* - * Phase 1 is fine on LocalTalk but we don't do - * EtherTalk phase 1. Anyone wanting to add it go ahead. - */ - if (dev->type == ARPHRD_ETHER && nr->nr_phase != 2) - return -EPROTONOSUPPORT; - if (sa->sat_addr.s_node == ATADDR_BCAST || - sa->sat_addr.s_node == 254) - return -EINVAL; - if (atif) { - /* Already setting address */ - if (atif->status & ATIF_PROBE) - return -EBUSY; - - atif->address.s_net = sa->sat_addr.s_net; - atif->address.s_node = sa->sat_addr.s_node; - atrtr_device_down(dev); /* Flush old routes */ - } else { - atif = atif_add_device(dev, &sa->sat_addr); - if (!atif) - return -ENOMEM; - } - atif->nets = *nr; - - /* - * Check if the chosen address is used. If so we - * error and atalkd will try another. - */ - - if (!(dev->flags & IFF_LOOPBACK) && - !(dev->flags & IFF_POINTOPOINT) && - atif_probe_device(atif) < 0) { - atif_drop_device(dev); - return -EADDRINUSE; - } - - /* Hey it worked - add the direct routes */ - sa = (struct sockaddr_at *)&rtdef.rt_gateway; - sa->sat_family = AF_APPLETALK; - sa->sat_addr.s_net = atif->address.s_net; - sa->sat_addr.s_node = atif->address.s_node; - sa = (struct sockaddr_at *)&rtdef.rt_dst; - rtdef.rt_flags = RTF_UP; - sa->sat_family = AF_APPLETALK; - sa->sat_addr.s_node = ATADDR_ANYNODE; - if (dev->flags & IFF_LOOPBACK || - dev->flags & IFF_POINTOPOINT) - rtdef.rt_flags |= RTF_HOST; - - /* Routerless initial state */ - if (nr->nr_firstnet == htons(0) && - nr->nr_lastnet == htons(0xFFFE)) { - sa->sat_addr.s_net = atif->address.s_net; - atrtr_create(&rtdef, dev); - atrtr_set_default(dev); - } else { - limit = ntohs(nr->nr_lastnet); - if (limit - ntohs(nr->nr_firstnet) > 4096) { - printk(KERN_WARNING "Too many routes/" - "iface.\n"); - return -EINVAL; - } - if (add_route) - for (ct = ntohs(nr->nr_firstnet); - ct <= limit; ct++) { - sa->sat_addr.s_net = htons(ct); - atrtr_create(&rtdef, dev); - } - } - dev_mc_add_global(dev, aarp_mcast); - return 0; - - case SIOCGIFADDR: - if (!atif) - return -EADDRNOTAVAIL; - - sa->sat_family = AF_APPLETALK; - sa->sat_addr = atif->address; - break; - - case SIOCGIFBRDADDR: - if (!atif) - return -EADDRNOTAVAIL; - - sa->sat_family = AF_APPLETALK; - sa->sat_addr.s_net = atif->address.s_net; - sa->sat_addr.s_node = ATADDR_BCAST; - break; - - case SIOCATALKDIFADDR: - case SIOCDIFADDR: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - atalk_dev_down(dev); - break; - - case SIOCSARP: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - /* - * for now, we only support proxy AARP on ELAP; - * we should be able to do it for LocalTalk, too. - */ - if (dev->type != ARPHRD_ETHER) - return -EPROTONOSUPPORT; - - /* - * atif points to the current interface on this network; - * we aren't concerned about its current status (at - * least for now), but it has all the settings about - * the network we're going to probe. Consequently, it - * must exist. - */ - if (!atif) - return -EADDRNOTAVAIL; - - nr = (struct atalk_netrange *)&(atif->nets); - /* - * Phase 1 is fine on Localtalk but we don't do - * Ethertalk phase 1. Anyone wanting to add it go ahead. - */ - if (dev->type == ARPHRD_ETHER && nr->nr_phase != 2) - return -EPROTONOSUPPORT; - - if (sa->sat_addr.s_node == ATADDR_BCAST || - sa->sat_addr.s_node == 254) - return -EINVAL; - - /* - * Check if the chosen address is used. If so we - * error and ATCP will try another. - */ - if (atif_proxy_probe_device(atif, &(sa->sat_addr)) < 0) - return -EADDRINUSE; - - /* - * We now have an address on the local network, and - * the AARP code will defend it for us until we take it - * down. We don't set up any routes right now, because - * ATCP will install them manually via SIOCADDRT. - */ - break; - - case SIOCDARP: - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (sa->sat_family != AF_APPLETALK) - return -EINVAL; - if (!atif) - return -EADDRNOTAVAIL; - - /* give to aarp module to remove proxy entry */ - aarp_proxy_remove(atif->dev, &(sa->sat_addr)); - return 0; - } - - return copy_to_user(arg, &atreq, sizeof(atreq)) ? -EFAULT : 0; -} - -/* Routing ioctl() calls */ -static int atrtr_ioctl(unsigned int cmd, void __user *arg) -{ - struct rtentry rt; - - if (copy_from_user(&rt, arg, sizeof(rt))) - return -EFAULT; - - switch (cmd) { - case SIOCDELRT: - if (rt.rt_dst.sa_family != AF_APPLETALK) - return -EINVAL; - return atrtr_delete(&((struct sockaddr_at *) - &rt.rt_dst)->sat_addr); - - case SIOCADDRT: { - struct net_device *dev = NULL; - if (rt.rt_dev) { - char name[IFNAMSIZ]; - if (copy_from_user(name, rt.rt_dev, IFNAMSIZ-1)) - return -EFAULT; - name[IFNAMSIZ-1] = '\0'; - dev = __dev_get_by_name(&init_net, name); - if (!dev) - return -ENODEV; - } - return atrtr_create(&rt, dev); - } - } - return -EINVAL; -} - -/**************************************************************************\ -* * -* Handling for system calls applied via the various interfaces to an * -* AppleTalk socket object. * -* * -\**************************************************************************/ - -/* - * Checksum: This is 'optional'. It's quite likely also a good - * candidate for assembler hackery 8) - */ -static unsigned long atalk_sum_partial(const unsigned char *data, - int len, unsigned long sum) -{ - /* This ought to be unwrapped neatly. I'll trust gcc for now */ - while (len--) { - sum += *data++; - sum = rol16(sum, 1); - } - return sum; -} - -/* Checksum skb data -- similar to skb_checksum */ -static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset, - int len, unsigned long sum) -{ - int start = skb_headlen(skb); - struct sk_buff *frag_iter; - int i, copy; - - /* checksum stuff in header space */ - if ( (copy = start - offset) > 0) { - if (copy > len) - copy = len; - sum = atalk_sum_partial(skb->data + offset, copy, sum); - if ( (len -= copy) == 0) - return sum; - - offset += copy; - } - - /* checksum stuff in frags */ - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - int end; - - WARN_ON(start > offset + len); - - end = start + skb_shinfo(skb)->frags[i].size; - if ((copy = end - offset) > 0) { - u8 *vaddr; - skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; - - if (copy > len) - copy = len; - vaddr = kmap_skb_frag(frag); - sum = atalk_sum_partial(vaddr + frag->page_offset + - offset - start, copy, sum); - kunmap_skb_frag(vaddr); - - if (!(len -= copy)) - return sum; - offset += copy; - } - start = end; - } - - skb_walk_frags(skb, frag_iter) { - int end; - - WARN_ON(start > offset + len); - - end = start + frag_iter->len; - if ((copy = end - offset) > 0) { - if (copy > len) - copy = len; - sum = atalk_sum_skb(frag_iter, offset - start, - copy, sum); - if ((len -= copy) == 0) - return sum; - offset += copy; - } - start = end; - } - - BUG_ON(len > 0); - - return sum; -} - -static __be16 atalk_checksum(const struct sk_buff *skb, int len) -{ - unsigned long sum; - - /* skip header 4 bytes */ - sum = atalk_sum_skb(skb, 4, len-4, 0); - - /* Use 0xFFFF for 0. 0 itself means none */ - return sum ? htons((unsigned short)sum) : htons(0xFFFF); -} - -static struct proto ddp_proto = { - .name = "DDP", - .owner = THIS_MODULE, - .obj_size = sizeof(struct atalk_sock), -}; - -/* - * Create a socket. Initialise the socket, blank the addresses - * set the state. - */ -static int atalk_create(struct net *net, struct socket *sock, int protocol, - int kern) -{ - struct sock *sk; - int rc = -ESOCKTNOSUPPORT; - - if (!net_eq(net, &init_net)) - return -EAFNOSUPPORT; - - /* - * We permit SOCK_DGRAM and RAW is an extension. It is trivial to do - * and gives you the full ELAP frame. Should be handy for CAP 8) - */ - if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM) - goto out; - rc = -ENOMEM; - sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto); - if (!sk) - goto out; - rc = 0; - sock->ops = &atalk_dgram_ops; - sock_init_data(sock, sk); - - /* Checksums on by default */ - sock_set_flag(sk, SOCK_ZAPPED); -out: - return rc; -} - -/* Free a socket. No work needed */ -static int atalk_release(struct socket *sock) -{ - struct sock *sk = sock->sk; - - lock_kernel(); - if (sk) { - sock_orphan(sk); - sock->sk = NULL; - atalk_destroy_socket(sk); - } - unlock_kernel(); - return 0; -} - -/** - * atalk_pick_and_bind_port - Pick a source port when one is not given - * @sk - socket to insert into the tables - * @sat - address to search for - * - * Pick a source port when one is not given. If we can find a suitable free - * one, we insert the socket into the tables using it. - * - * This whole operation must be atomic. - */ -static int atalk_pick_and_bind_port(struct sock *sk, struct sockaddr_at *sat) -{ - int retval; - - write_lock_bh(&atalk_sockets_lock); - - for (sat->sat_port = ATPORT_RESERVED; - sat->sat_port < ATPORT_LAST; - sat->sat_port++) { - struct sock *s; - struct hlist_node *node; - - sk_for_each(s, node, &atalk_sockets) { - struct atalk_sock *at = at_sk(s); - - if (at->src_net == sat->sat_addr.s_net && - at->src_node == sat->sat_addr.s_node && - at->src_port == sat->sat_port) - goto try_next_port; - } - - /* Wheee, it's free, assign and insert. */ - __atalk_insert_socket(sk); - at_sk(sk)->src_port = sat->sat_port; - retval = 0; - goto out; - -try_next_port:; - } - - retval = -EBUSY; -out: - write_unlock_bh(&atalk_sockets_lock); - return retval; -} - -static int atalk_autobind(struct sock *sk) -{ - struct atalk_sock *at = at_sk(sk); - struct sockaddr_at sat; - struct atalk_addr *ap = atalk_find_primary(); - int n = -EADDRNOTAVAIL; - - if (!ap || ap->s_net == htons(ATADDR_ANYNET)) - goto out; - - at->src_net = sat.sat_addr.s_net = ap->s_net; - at->src_node = sat.sat_addr.s_node = ap->s_node; - - n = atalk_pick_and_bind_port(sk, &sat); - if (!n) - sock_reset_flag(sk, SOCK_ZAPPED); -out: - return n; -} - -/* Set the address 'our end' of the connection */ -static int atalk_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) -{ - struct sockaddr_at *addr = (struct sockaddr_at *)uaddr; - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - int err; - - if (!sock_flag(sk, SOCK_ZAPPED) || - addr_len != sizeof(struct sockaddr_at)) - return -EINVAL; - - if (addr->sat_family != AF_APPLETALK) - return -EAFNOSUPPORT; - - lock_kernel(); - if (addr->sat_addr.s_net == htons(ATADDR_ANYNET)) { - struct atalk_addr *ap = atalk_find_primary(); - - err = -EADDRNOTAVAIL; - if (!ap) - goto out; - - at->src_net = addr->sat_addr.s_net = ap->s_net; - at->src_node = addr->sat_addr.s_node= ap->s_node; - } else { - err = -EADDRNOTAVAIL; - if (!atalk_find_interface(addr->sat_addr.s_net, - addr->sat_addr.s_node)) - goto out; - - at->src_net = addr->sat_addr.s_net; - at->src_node = addr->sat_addr.s_node; - } - - if (addr->sat_port == ATADDR_ANYPORT) { - err = atalk_pick_and_bind_port(sk, addr); - - if (err < 0) - goto out; - } else { - at->src_port = addr->sat_port; - - err = -EADDRINUSE; - if (atalk_find_or_insert_socket(sk, addr)) - goto out; - } - - sock_reset_flag(sk, SOCK_ZAPPED); - err = 0; -out: - unlock_kernel(); - return err; -} - -/* Set the address we talk to */ -static int atalk_connect(struct socket *sock, struct sockaddr *uaddr, - int addr_len, int flags) -{ - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - struct sockaddr_at *addr; - int err; - - sk->sk_state = TCP_CLOSE; - sock->state = SS_UNCONNECTED; - - if (addr_len != sizeof(*addr)) - return -EINVAL; - - addr = (struct sockaddr_at *)uaddr; - - if (addr->sat_family != AF_APPLETALK) - return -EAFNOSUPPORT; - - if (addr->sat_addr.s_node == ATADDR_BCAST && - !sock_flag(sk, SOCK_BROADCAST)) { -#if 1 - printk(KERN_WARNING "%s is broken and did not set " - "SO_BROADCAST. It will break when 2.2 is " - "released.\n", - current->comm); -#else - return -EACCES; -#endif - } - - lock_kernel(); - err = -EBUSY; - if (sock_flag(sk, SOCK_ZAPPED)) - if (atalk_autobind(sk) < 0) - goto out; - - err = -ENETUNREACH; - if (!atrtr_get_dev(&addr->sat_addr)) - goto out; - - at->dest_port = addr->sat_port; - at->dest_net = addr->sat_addr.s_net; - at->dest_node = addr->sat_addr.s_node; - - sock->state = SS_CONNECTED; - sk->sk_state = TCP_ESTABLISHED; - err = 0; -out: - unlock_kernel(); - return err; -} - -/* - * Find the name of an AppleTalk socket. Just copy the right - * fields into the sockaddr. - */ -static int atalk_getname(struct socket *sock, struct sockaddr *uaddr, - int *uaddr_len, int peer) -{ - struct sockaddr_at sat; - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - int err; - - lock_kernel(); - err = -ENOBUFS; - if (sock_flag(sk, SOCK_ZAPPED)) - if (atalk_autobind(sk) < 0) - goto out; - - *uaddr_len = sizeof(struct sockaddr_at); - memset(&sat.sat_zero, 0, sizeof(sat.sat_zero)); - - if (peer) { - err = -ENOTCONN; - if (sk->sk_state != TCP_ESTABLISHED) - goto out; - - sat.sat_addr.s_net = at->dest_net; - sat.sat_addr.s_node = at->dest_node; - sat.sat_port = at->dest_port; - } else { - sat.sat_addr.s_net = at->src_net; - sat.sat_addr.s_node = at->src_node; - sat.sat_port = at->src_port; - } - - err = 0; - sat.sat_family = AF_APPLETALK; - memcpy(uaddr, &sat, sizeof(sat)); - -out: - unlock_kernel(); - return err; -} - -static unsigned int atalk_poll(struct file *file, struct socket *sock, - poll_table *wait) -{ - int err; - lock_kernel(); - err = datagram_poll(file, sock, wait); - unlock_kernel(); - return err; -} - -#if defined(CONFIG_IPDDP) || defined(CONFIG_IPDDP_MODULE) -static __inline__ int is_ip_over_ddp(struct sk_buff *skb) -{ - return skb->data[12] == 22; -} - -static int handle_ip_over_ddp(struct sk_buff *skb) -{ - struct net_device *dev = __dev_get_by_name(&init_net, "ipddp0"); - struct net_device_stats *stats; - - /* This needs to be able to handle ipddp"N" devices */ - if (!dev) { - kfree_skb(skb); - return NET_RX_DROP; - } - - skb->protocol = htons(ETH_P_IP); - skb_pull(skb, 13); - skb->dev = dev; - skb_reset_transport_header(skb); - - stats = netdev_priv(dev); - stats->rx_packets++; - stats->rx_bytes += skb->len + 13; - return netif_rx(skb); /* Send the SKB up to a higher place. */ -} -#else -/* make it easy for gcc to optimize this test out, i.e. kill the code */ -#define is_ip_over_ddp(skb) 0 -#define handle_ip_over_ddp(skb) 0 -#endif - -static int atalk_route_packet(struct sk_buff *skb, struct net_device *dev, - struct ddpehdr *ddp, __u16 len_hops, int origlen) -{ - struct atalk_route *rt; - struct atalk_addr ta; - - /* - * Don't route multicast, etc., packets, or packets sent to "this - * network" - */ - if (skb->pkt_type != PACKET_HOST || !ddp->deh_dnet) { - /* - * FIXME: - * - * Can it ever happen that a packet is from a PPP iface and - * needs to be broadcast onto the default network? - */ - if (dev->type == ARPHRD_PPP) - printk(KERN_DEBUG "AppleTalk: didn't forward broadcast " - "packet received from PPP iface\n"); - goto free_it; - } - - ta.s_net = ddp->deh_dnet; - ta.s_node = ddp->deh_dnode; - - /* Route the packet */ - rt = atrtr_find(&ta); - /* increment hops count */ - len_hops += 1 << 10; - if (!rt || !(len_hops & (15 << 10))) - goto free_it; - - /* FIXME: use skb->cb to be able to use shared skbs */ - - /* - * Route goes through another gateway, so set the target to the - * gateway instead. - */ - - if (rt->flags & RTF_GATEWAY) { - ta.s_net = rt->gateway.s_net; - ta.s_node = rt->gateway.s_node; - } - - /* Fix up skb->len field */ - skb_trim(skb, min_t(unsigned int, origlen, - (rt->dev->hard_header_len + - ddp_dl->header_length + (len_hops & 1023)))); - - /* FIXME: use skb->cb to be able to use shared skbs */ - ddp->deh_len_hops = htons(len_hops); - - /* - * Send the buffer onwards - * - * Now we must always be careful. If it's come from LocalTalk to - * EtherTalk it might not fit - * - * Order matters here: If a packet has to be copied to make a new - * headroom (rare hopefully) then it won't need unsharing. - * - * Note. ddp-> becomes invalid at the realloc. - */ - if (skb_headroom(skb) < 22) { - /* 22 bytes - 12 ether, 2 len, 3 802.2 5 snap */ - struct sk_buff *nskb = skb_realloc_headroom(skb, 32); - kfree_skb(skb); - skb = nskb; - } else - skb = skb_unshare(skb, GFP_ATOMIC); - - /* - * If the buffer didn't vanish into the lack of space bitbucket we can - * send it. - */ - if (skb == NULL) - goto drop; - - if (aarp_send_ddp(rt->dev, skb, &ta, NULL) == NET_XMIT_DROP) - return NET_RX_DROP; - return NET_RX_SUCCESS; -free_it: - kfree_skb(skb); -drop: - return NET_RX_DROP; -} - -/** - * atalk_rcv - Receive a packet (in skb) from device dev - * @skb - packet received - * @dev - network device where the packet comes from - * @pt - packet type - * - * Receive a packet (in skb) from device dev. This has come from the SNAP - * decoder, and on entry skb->transport_header is the DDP header, skb->len - * is the DDP header, skb->len is the DDP length. The physical headers - * have been extracted. PPP should probably pass frames marked as for this - * layer. [ie ARPHRD_ETHERTALK] - */ -static int atalk_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) -{ - struct ddpehdr *ddp; - struct sock *sock; - struct atalk_iface *atif; - struct sockaddr_at tosat; - int origlen; - __u16 len_hops; - - if (!net_eq(dev_net(dev), &init_net)) - goto drop; - - /* Don't mangle buffer if shared */ - if (!(skb = skb_share_check(skb, GFP_ATOMIC))) - goto out; - - /* Size check and make sure header is contiguous */ - if (!pskb_may_pull(skb, sizeof(*ddp))) - goto drop; - - ddp = ddp_hdr(skb); - - len_hops = ntohs(ddp->deh_len_hops); - - /* Trim buffer in case of stray trailing data */ - origlen = skb->len; - skb_trim(skb, min_t(unsigned int, skb->len, len_hops & 1023)); - - /* - * Size check to see if ddp->deh_len was crap - * (Otherwise we'll detonate most spectacularly - * in the middle of atalk_checksum() or recvmsg()). - */ - if (skb->len < sizeof(*ddp) || skb->len < (len_hops & 1023)) { - pr_debug("AppleTalk: dropping corrupted frame (deh_len=%u, " - "skb->len=%u)\n", len_hops & 1023, skb->len); - goto drop; - } - - /* - * Any checksums. Note we don't do htons() on this == is assumed to be - * valid for net byte orders all over the networking code... - */ - if (ddp->deh_sum && - atalk_checksum(skb, len_hops & 1023) != ddp->deh_sum) - /* Not a valid AppleTalk frame - dustbin time */ - goto drop; - - /* Check the packet is aimed at us */ - if (!ddp->deh_dnet) /* Net 0 is 'this network' */ - atif = atalk_find_anynet(ddp->deh_dnode, dev); - else - atif = atalk_find_interface(ddp->deh_dnet, ddp->deh_dnode); - - if (!atif) { - /* Not ours, so we route the packet via the correct - * AppleTalk iface - */ - return atalk_route_packet(skb, dev, ddp, len_hops, origlen); - } - - /* if IP over DDP is not selected this code will be optimized out */ - if (is_ip_over_ddp(skb)) - return handle_ip_over_ddp(skb); - /* - * Which socket - atalk_search_socket() looks for a *full match* - * of the tuple. - */ - tosat.sat_addr.s_net = ddp->deh_dnet; - tosat.sat_addr.s_node = ddp->deh_dnode; - tosat.sat_port = ddp->deh_dport; - - sock = atalk_search_socket(&tosat, atif); - if (!sock) /* But not one of our sockets */ - goto drop; - - /* Queue packet (standard) */ - skb->sk = sock; - - if (sock_queue_rcv_skb(sock, skb) < 0) - goto drop; - - return NET_RX_SUCCESS; - -drop: - kfree_skb(skb); -out: - return NET_RX_DROP; - -} - -/* - * Receive a LocalTalk frame. We make some demands on the caller here. - * Caller must provide enough headroom on the packet to pull the short - * header and append a long one. - */ -static int ltalk_rcv(struct sk_buff *skb, struct net_device *dev, - struct packet_type *pt, struct net_device *orig_dev) -{ - if (!net_eq(dev_net(dev), &init_net)) - goto freeit; - - /* Expand any short form frames */ - if (skb_mac_header(skb)[2] == 1) { - struct ddpehdr *ddp; - /* Find our address */ - struct atalk_addr *ap = atalk_find_dev_addr(dev); - - if (!ap || skb->len < sizeof(__be16) || skb->len > 1023) - goto freeit; - - /* Don't mangle buffer if shared */ - if (!(skb = skb_share_check(skb, GFP_ATOMIC))) - return 0; - - /* - * The push leaves us with a ddephdr not an shdr, and - * handily the port bytes in the right place preset. - */ - ddp = (struct ddpehdr *) skb_push(skb, sizeof(*ddp) - 4); - - /* Now fill in the long header */ - - /* - * These two first. The mac overlays the new source/dest - * network information so we MUST copy these before - * we write the network numbers ! - */ - - ddp->deh_dnode = skb_mac_header(skb)[0]; /* From physical header */ - ddp->deh_snode = skb_mac_header(skb)[1]; /* From physical header */ - - ddp->deh_dnet = ap->s_net; /* Network number */ - ddp->deh_snet = ap->s_net; - ddp->deh_sum = 0; /* No checksum */ - /* - * Not sure about this bit... - */ - /* Non routable, so force a drop if we slip up later */ - ddp->deh_len_hops = htons(skb->len + (DDP_MAXHOPS << 10)); - } - skb_reset_transport_header(skb); - - return atalk_rcv(skb, dev, pt, orig_dev); -freeit: - kfree_skb(skb); - return 0; -} - -static int atalk_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, - size_t len) -{ - struct sock *sk = sock->sk; - struct atalk_sock *at = at_sk(sk); - struct sockaddr_at *usat = (struct sockaddr_at *)msg->msg_name; - int flags = msg->msg_flags; - int loopback = 0; - struct sockaddr_at local_satalk, gsat; - struct sk_buff *skb; - struct net_device *dev; - struct ddpehdr *ddp; - int size; - struct atalk_route *rt; - int err; - - if (flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT)) - return -EINVAL; - - if (len > DDP_MAXSZ) - return -EMSGSIZE; - - lock_kernel(); - if (usat) { - err = -EBUSY; - if (sock_flag(sk, SOCK_ZAPPED)) - if (atalk_autobind(sk) < 0) - goto out; - - err = -EINVAL; - if (msg->msg_namelen < sizeof(*usat) || - usat->sat_family != AF_APPLETALK) - goto out; - - err = -EPERM; - /* netatalk didn't implement this check */ - if (usat->sat_addr.s_node == ATADDR_BCAST && - !sock_flag(sk, SOCK_BROADCAST)) { - goto out; - } - } else { - err = -ENOTCONN; - if (sk->sk_state != TCP_ESTABLISHED) - goto out; - usat = &local_satalk; - usat->sat_family = AF_APPLETALK; - usat->sat_port = at->dest_port; - usat->sat_addr.s_node = at->dest_node; - usat->sat_addr.s_net = at->dest_net; - } - - /* Build a packet */ - SOCK_DEBUG(sk, "SK %p: Got address.\n", sk); - - /* For headers */ - size = sizeof(struct ddpehdr) + len + ddp_dl->header_length; - - if (usat->sat_addr.s_net || usat->sat_addr.s_node == ATADDR_ANYNODE) { - rt = atrtr_find(&usat->sat_addr); - } else { - struct atalk_addr at_hint; - - at_hint.s_node = 0; - at_hint.s_net = at->src_net; - - rt = atrtr_find(&at_hint); - } - err = ENETUNREACH; - if (!rt) - goto out; - - dev = rt->dev; - - SOCK_DEBUG(sk, "SK %p: Size needed %d, device %s\n", - sk, size, dev->name); - - size += dev->hard_header_len; - skb = sock_alloc_send_skb(sk, size, (flags & MSG_DONTWAIT), &err); - if (!skb) - goto out; - - skb->sk = sk; - skb_reserve(skb, ddp_dl->header_length); - skb_reserve(skb, dev->hard_header_len); - skb->dev = dev; - - SOCK_DEBUG(sk, "SK %p: Begin build.\n", sk); - - ddp = (struct ddpehdr *)skb_put(skb, sizeof(struct ddpehdr)); - ddp->deh_len_hops = htons(len + sizeof(*ddp)); - ddp->deh_dnet = usat->sat_addr.s_net; - ddp->deh_snet = at->src_net; - ddp->deh_dnode = usat->sat_addr.s_node; - ddp->deh_snode = at->src_node; - ddp->deh_dport = usat->sat_port; - ddp->deh_sport = at->src_port; - - SOCK_DEBUG(sk, "SK %p: Copy user data (%Zd bytes).\n", sk, len); - - err = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len); - if (err) { - kfree_skb(skb); - err = -EFAULT; - goto out; - } - - if (sk->sk_no_check == 1) - ddp->deh_sum = 0; - else - ddp->deh_sum = atalk_checksum(skb, len + sizeof(*ddp)); - - /* - * Loopback broadcast packets to non gateway targets (ie routes - * to group we are in) - */ - if (ddp->deh_dnode == ATADDR_BCAST && - !(rt->flags & RTF_GATEWAY) && !(dev->flags & IFF_LOOPBACK)) { - struct sk_buff *skb2 = skb_copy(skb, GFP_KERNEL); - - if (skb2) { - loopback = 1; - SOCK_DEBUG(sk, "SK %p: send out(copy).\n", sk); - /* - * If it fails it is queued/sent above in the aarp queue - */ - aarp_send_ddp(dev, skb2, &usat->sat_addr, NULL); - } - } - - if (dev->flags & IFF_LOOPBACK || loopback) { - SOCK_DEBUG(sk, "SK %p: Loop back.\n", sk); - /* loop back */ - skb_orphan(skb); - if (ddp->deh_dnode == ATADDR_BCAST) { - struct atalk_addr at_lo; - - at_lo.s_node = 0; - at_lo.s_net = 0; - - rt = atrtr_find(&at_lo); - if (!rt) { - kfree_skb(skb); - err = -ENETUNREACH; - goto out; - } - dev = rt->dev; - skb->dev = dev; - } - ddp_dl->request(ddp_dl, skb, dev->dev_addr); - } else { - SOCK_DEBUG(sk, "SK %p: send out.\n", sk); - if (rt->flags & RTF_GATEWAY) { - gsat.sat_addr = rt->gateway; - usat = &gsat; - } - - /* - * If it fails it is queued/sent above in the aarp queue - */ - aarp_send_ddp(dev, skb, &usat->sat_addr, NULL); - } - SOCK_DEBUG(sk, "SK %p: Done write (%Zd).\n", sk, len); - -out: - unlock_kernel(); - return err ? : len; -} - -static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, - size_t size, int flags) -{ - struct sock *sk = sock->sk; - struct sockaddr_at *sat = (struct sockaddr_at *)msg->msg_name; - struct ddpehdr *ddp; - int copied = 0; - int offset = 0; - int err = 0; - struct sk_buff *skb; - - lock_kernel(); - skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, - flags & MSG_DONTWAIT, &err); - if (!skb) - goto out; - - /* FIXME: use skb->cb to be able to use shared skbs */ - ddp = ddp_hdr(skb); - copied = ntohs(ddp->deh_len_hops) & 1023; - - if (sk->sk_type != SOCK_RAW) { - offset = sizeof(*ddp); - copied -= offset; - } - - if (copied > size) { - copied = size; - msg->msg_flags |= MSG_TRUNC; - } - err = skb_copy_datagram_iovec(skb, offset, msg->msg_iov, copied); - - if (!err) { - if (sat) { - sat->sat_family = AF_APPLETALK; - sat->sat_port = ddp->deh_sport; - sat->sat_addr.s_node = ddp->deh_snode; - sat->sat_addr.s_net = ddp->deh_snet; - } - msg->msg_namelen = sizeof(*sat); - } - - skb_free_datagram(sk, skb); /* Free the datagram. */ - -out: - unlock_kernel(); - return err ? : copied; -} - - -/* - * AppleTalk ioctl calls. - */ -static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) -{ - int rc = -ENOIOCTLCMD; - struct sock *sk = sock->sk; - void __user *argp = (void __user *)arg; - - switch (cmd) { - /* Protocol layer */ - case TIOCOUTQ: { - long amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); - - if (amount < 0) - amount = 0; - rc = put_user(amount, (int __user *)argp); - break; - } - case TIOCINQ: { - /* - * These two are safe on a single CPU system as only - * user tasks fiddle here - */ - struct sk_buff *skb = skb_peek(&sk->sk_receive_queue); - long amount = 0; - - if (skb) - amount = skb->len - sizeof(struct ddpehdr); - rc = put_user(amount, (int __user *)argp); - break; - } - case SIOCGSTAMP: - rc = sock_get_timestamp(sk, argp); - break; - case SIOCGSTAMPNS: - rc = sock_get_timestampns(sk, argp); - break; - /* Routing */ - case SIOCADDRT: - case SIOCDELRT: - rc = -EPERM; - if (capable(CAP_NET_ADMIN)) - rc = atrtr_ioctl(cmd, argp); - break; - /* Interface */ - case SIOCGIFADDR: - case SIOCSIFADDR: - case SIOCGIFBRDADDR: - case SIOCATALKDIFADDR: - case SIOCDIFADDR: - case SIOCSARP: /* proxy AARP */ - case SIOCDARP: /* proxy AARP */ - rtnl_lock(); - rc = atif_ioctl(cmd, argp); - rtnl_unlock(); - break; - } - - return rc; -} - - -#ifdef CONFIG_COMPAT -static int atalk_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) -{ - /* - * SIOCATALKDIFADDR is a SIOCPROTOPRIVATE ioctl number, so we - * cannot handle it in common code. The data we access if ifreq - * here is compatible, so we can simply call the native - * handler. - */ - if (cmd == SIOCATALKDIFADDR) - return atalk_ioctl(sock, cmd, (unsigned long)compat_ptr(arg)); - - return -ENOIOCTLCMD; -} -#endif - - -static const struct net_proto_family atalk_family_ops = { - .family = PF_APPLETALK, - .create = atalk_create, - .owner = THIS_MODULE, -}; - -static const struct proto_ops atalk_dgram_ops = { - .family = PF_APPLETALK, - .owner = THIS_MODULE, - .release = atalk_release, - .bind = atalk_bind, - .connect = atalk_connect, - .socketpair = sock_no_socketpair, - .accept = sock_no_accept, - .getname = atalk_getname, - .poll = atalk_poll, - .ioctl = atalk_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = atalk_compat_ioctl, -#endif - .listen = sock_no_listen, - .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, - .sendmsg = atalk_sendmsg, - .recvmsg = atalk_recvmsg, - .mmap = sock_no_mmap, - .sendpage = sock_no_sendpage, -}; - -static struct notifier_block ddp_notifier = { - .notifier_call = ddp_device_event, -}; - -static struct packet_type ltalk_packet_type __read_mostly = { - .type = cpu_to_be16(ETH_P_LOCALTALK), - .func = ltalk_rcv, -}; - -static struct packet_type ppptalk_packet_type __read_mostly = { - .type = cpu_to_be16(ETH_P_PPPTALK), - .func = atalk_rcv, -}; - -static unsigned char ddp_snap_id[] = { 0x08, 0x00, 0x07, 0x80, 0x9B }; - -/* Export symbols for use by drivers when AppleTalk is a module */ -EXPORT_SYMBOL(atrtr_get_dev); -EXPORT_SYMBOL(atalk_find_dev_addr); - -static const char atalk_err_snap[] __initconst = - KERN_CRIT "Unable to register DDP with SNAP.\n"; - -/* Called by proto.c on kernel start up */ -static int __init atalk_init(void) -{ - int rc = proto_register(&ddp_proto, 0); - - if (rc != 0) - goto out; - - (void)sock_register(&atalk_family_ops); - ddp_dl = register_snap_client(ddp_snap_id, atalk_rcv); - if (!ddp_dl) - printk(atalk_err_snap); - - dev_add_pack(<alk_packet_type); - dev_add_pack(&ppptalk_packet_type); - - register_netdevice_notifier(&ddp_notifier); - aarp_proto_init(); - atalk_proc_init(); - atalk_register_sysctl(); -out: - return rc; -} -module_init(atalk_init); - -/* - * No explicit module reference count manipulation is needed in the - * protocol. Socket layer sets module reference count for us - * and interfaces reference counting is done - * by the network device layer. - * - * Ergo, before the AppleTalk module can be removed, all AppleTalk - * sockets be closed from user space. - */ -static void __exit atalk_exit(void) -{ -#ifdef CONFIG_SYSCTL - atalk_unregister_sysctl(); -#endif /* CONFIG_SYSCTL */ - atalk_proc_exit(); - aarp_cleanup_module(); /* General aarp clean-up. */ - unregister_netdevice_notifier(&ddp_notifier); - dev_remove_pack(<alk_packet_type); - dev_remove_pack(&ppptalk_packet_type); - unregister_snap_client(ddp_dl); - sock_unregister(PF_APPLETALK); - proto_unregister(&ddp_proto); -} -module_exit(atalk_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Alan Cox "); -MODULE_DESCRIPTION("AppleTalk 0.20\n"); -MODULE_ALIAS_NETPROTO(PF_APPLETALK); diff --git a/net/appletalk/dev.c b/net/appletalk/dev.c deleted file mode 100644 index 6c8016f61866..000000000000 --- a/net/appletalk/dev.c +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Moved here from drivers/net/net_init.c, which is: - * Written 1993,1994,1995 by Donald Becker. - */ - -#include -#include -#include -#include -#include - -static void ltalk_setup(struct net_device *dev) -{ - /* Fill in the fields of the device structure with localtalk-generic values. */ - - dev->type = ARPHRD_LOCALTLK; - dev->hard_header_len = LTALK_HLEN; - dev->mtu = LTALK_MTU; - dev->addr_len = LTALK_ALEN; - dev->tx_queue_len = 10; - - dev->broadcast[0] = 0xFF; - - dev->flags = IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP; -} - -/** - * alloc_ltalkdev - Allocates and sets up an localtalk device - * @sizeof_priv: Size of additional driver-private structure to be allocated - * for this localtalk device - * - * Fill in the fields of the device structure with localtalk-generic - * values. Basically does everything except registering the device. - * - * Constructs a new net device, complete with a private data area of - * size @sizeof_priv. A 32-byte (not bit) alignment is enforced for - * this private data area. - */ - -struct net_device *alloc_ltalkdev(int sizeof_priv) -{ - return alloc_netdev(sizeof_priv, "lt%d", ltalk_setup); -} -EXPORT_SYMBOL(alloc_ltalkdev); diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c deleted file mode 100644 index 04e9c0da7aa9..000000000000 --- a/net/appletalk/sysctl_net_atalk.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * sysctl_net_atalk.c: sysctl interface to net AppleTalk subsystem. - * - * Begun April 1, 1996, Mike Shaver. - * Added /proc/sys/net/atalk directory entry (empty =) ). [MS] - * Dynamic registration, added aarp entries. (5/30/97 Chris Horn) - */ - -#include -#include -#include - -static struct ctl_table atalk_table[] = { - { - .procname = "aarp-expiry-time", - .data = &sysctl_aarp_expiry_time, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - { - .procname = "aarp-tick-time", - .data = &sysctl_aarp_tick_time, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - { - .procname = "aarp-retransmit-limit", - .data = &sysctl_aarp_retransmit_limit, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, - { - .procname = "aarp-resolve-time", - .data = &sysctl_aarp_resolve_time, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - { }, -}; - -static struct ctl_path atalk_path[] = { - { .procname = "net", }, - { .procname = "appletalk", }, - { } -}; - -static struct ctl_table_header *atalk_table_header; - -void atalk_register_sysctl(void) -{ - atalk_table_header = register_sysctl_paths(atalk_path, atalk_table); -} - -void atalk_unregister_sysctl(void) -{ - unregister_sysctl_table(atalk_table_header); -} diff --git a/net/socket.c b/net/socket.c index ac2219f90d5d..26f7bcf36810 100644 --- a/net/socket.c +++ b/net/socket.c @@ -103,7 +103,6 @@ #include #include #include -#include static int sock_no_open(struct inode *irrelevant, struct file *dontcare); static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,