[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / ipv6 / proc.c

/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		This file implements the various access functions for the
 *		PROC file system.  This is very similar to the IPv4 version,
 *		except it reports the sockets in the INET6 address family.
 *
 * Authors:	David S. Miller (davem@caip.rutgers.edu)
 * 		YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
 *
 *		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 <linux/socket.h>
#include <linux/net.h>
#include <linux/ipv6.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/stddef.h>
#include <net/net_namespace.h>
#include <net/ip.h>
#include <net/sock.h>
#include <net/tcp.h>
#include <net/udp.h>
#include <net/transp_v6.h>
#include <net/ipv6.h>

static int sockstat6_seq_show(struct seq_file *seq, void *v)
{
	struct net *net = seq->private;

	seq_printf(seq, "TCP6: inuse %d\n",
		       sock_prot_inuse_get(net, &tcpv6_prot));
	seq_printf(seq, "UDP6: inuse %d\n",
		       sock_prot_inuse_get(net, &udpv6_prot));
	seq_printf(seq, "UDPLITE6: inuse %d\n",
			sock_prot_inuse_get(net, &udplitev6_prot));
	seq_printf(seq, "RAW6: inuse %d\n",
		       sock_prot_inuse_get(net, &rawv6_prot));
	seq_printf(seq, "FRAG6: inuse %d memory %d\n",
		       ip6_frag_nqueues(net), ip6_frag_mem(net));
	return 0;
}

static int sockstat6_seq_open(struct inode *inode, struct file *file)
{
	return single_open_net(inode, file, sockstat6_seq_show);
}

static const struct file_operations sockstat6_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = sockstat6_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release_net,
};

static struct snmp_mib snmp6_ipstats_list[] = {
/* ipv6 mib according to RFC 2465 */
	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
	SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
	SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
	SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
	SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
	SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
	SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
	SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
	SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
	SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
	SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
	SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
	SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
	SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
	SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
	SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
	SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
	SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
	SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
	SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
	SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
	SNMP_MIB_SENTINEL
};

static struct snmp_mib snmp6_icmp6_list[] = {
/* icmpv6 mib according to RFC 2466 */
	SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
	SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
	SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
	SNMP_MIB_SENTINEL
};

/* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
static const char *const icmp6type2name[256] = {
	[ICMPV6_DEST_UNREACH] = "DestUnreachs",
	[ICMPV6_PKT_TOOBIG] = "PktTooBigs",
	[ICMPV6_TIME_EXCEED] = "TimeExcds",
	[ICMPV6_PARAMPROB] = "ParmProblems",
	[ICMPV6_ECHO_REQUEST] = "Echos",
	[ICMPV6_ECHO_REPLY] = "EchoReplies",
	[ICMPV6_MGM_QUERY] = "GroupMembQueries",
	[ICMPV6_MGM_REPORT] = "GroupMembResponses",
	[ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
	[ICMPV6_MLD2_REPORT] = "MLDv2Reports",
	[NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
	[NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
	[NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
	[NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
	[NDISC_REDIRECT] = "Redirects",
};


static struct snmp_mib snmp6_udp6_list[] = {
	SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
	SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
	SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
	SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
	SNMP_MIB_SENTINEL
};

static struct snmp_mib snmp6_udplite6_list[] = {
	SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
	SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
	SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
	SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
	SNMP_MIB_SENTINEL
};

static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, void **mib)
{
	char name[32];
	int i;

	/* print by name -- deprecated items */
	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
		int icmptype;
		const char *p;

		icmptype = i & 0xff;
		p = icmp6type2name[icmptype];
		if (!p)	/* don't print un-named types here */
			continue;
		snprintf(name, sizeof(name), "Icmp6%s%s",
			i & 0x100 ? "Out" : "In", p);
		seq_printf(seq, "%-32s\t%lu\n", name,
			snmp_fold_field(mib, i));
	}

	/* print by number (nonzero only) - ICMPMsgStat format */
	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
		unsigned long val;

		val = snmp_fold_field(mib, i);
		if (!val)
			continue;
		snprintf(name, sizeof(name), "Icmp6%sType%u",
			i & 0x100 ?  "Out" : "In", i & 0xff);
		seq_printf(seq, "%-32s\t%lu\n", name, val);
	}
	return;
}

static inline void
snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist)
{
	int i;
	for (i=0; itemlist[i].name; i++)
		seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
			   snmp_fold_field(mib, itemlist[i].entry));
}

static int snmp6_seq_show(struct seq_file *seq, void *v)
{
	struct net *net = (struct net *)seq->private;

	snmp6_seq_show_item(seq, (void **)net->mib.ipv6_statistics,
			    snmp6_ipstats_list);
	snmp6_seq_show_item(seq, (void **)net->mib.icmpv6_statistics,
			    snmp6_icmp6_list);
	snmp6_seq_show_icmpv6msg(seq, (void **)net->mib.icmpv6msg_statistics);
	snmp6_seq_show_item(seq, (void **)net->mib.udp_stats_in6,
			    snmp6_udp6_list);
	snmp6_seq_show_item(seq, (void **)net->mib.udplite_stats_in6,
			    snmp6_udplite6_list);
	return 0;
}

static int snmp6_seq_open(struct inode *inode, struct file *file)
{
	return single_open_net(inode, file, snmp6_seq_show);
}

static const struct file_operations snmp6_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = snmp6_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release_net,
};

static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
{
	struct inet6_dev *idev = (struct inet6_dev *)seq->private;

	seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
	snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
	snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
	snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg);
	return 0;
}

static int snmp6_dev_seq_open(struct inode *inode, struct file *file)
{
	return single_open(file, snmp6_dev_seq_show, PDE(inode)->data);
}

static const struct file_operations snmp6_dev_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = snmp6_dev_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release,
};

int snmp6_register_dev(struct inet6_dev *idev)
{
	struct proc_dir_entry *p;
	struct net *net;

	if (!idev || !idev->dev)
		return -EINVAL;

	net = dev_net(idev->dev);
	if (!net->mib.proc_net_devsnmp6)
		return -ENOENT;

	p = proc_create_data(idev->dev->name, S_IRUGO,
			     net->mib.proc_net_devsnmp6,
			     &snmp6_dev_seq_fops, idev);
	if (!p)
		return -ENOMEM;

	idev->stats.proc_dir_entry = p;
	return 0;
}

int snmp6_unregister_dev(struct inet6_dev *idev)
{
	struct net *net = dev_net(idev->dev);
	if (!net->mib.proc_net_devsnmp6)
		return -ENOENT;
	if (!idev || !idev->stats.proc_dir_entry)
		return -EINVAL;
	remove_proc_entry(idev->stats.proc_dir_entry->name,
			  net->mib.proc_net_devsnmp6);
	idev->stats.proc_dir_entry = NULL;
	return 0;
}

static int ipv6_proc_init_net(struct net *net)
{
	if (!proc_net_fops_create(net, "sockstat6", S_IRUGO,
			&sockstat6_seq_fops))
		return -ENOMEM;

	if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops))
		goto proc_snmp6_fail;

	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
	if (!net->mib.proc_net_devsnmp6)
		goto proc_dev_snmp6_fail;
	return 0;

proc_snmp6_fail:
	proc_net_remove(net, "sockstat6");
proc_dev_snmp6_fail:
	proc_net_remove(net, "dev_snmp6");
	return -ENOMEM;
}

static void ipv6_proc_exit_net(struct net *net)
{
	proc_net_remove(net, "sockstat6");
	proc_net_remove(net, "dev_snmp6");
	proc_net_remove(net, "snmp6");
}

static struct pernet_operations ipv6_proc_ops = {
	.init = ipv6_proc_init_net,
	.exit = ipv6_proc_exit_net,
};

int __init ipv6_misc_proc_init(void)
{
	return register_pernet_subsys(&ipv6_proc_ops);
}

void ipv6_misc_proc_exit(void)
{
	unregister_pernet_subsys(&ipv6_proc_ops);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* INET An implementation of the TCP/IP protocol suite for the LINUX
	3	* operating system. INET is implemented using the BSD Socket
	4	* interface as the means of communication with the user level.
	5	*
	6	* This file implements the various access functions for the
	7	* PROC file system. This is very similar to the IPv4 version,
	8	* except it reports the sockets in the INET6 address family.
	9	*
1da177e4 LT	10	* Authors: David S. Miller (davem@caip.rutgers.edu)
	11	* YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
	12	*
	13	* This program is free software; you can redistribute it and/or
	14	* modify it under the terms of the GNU General Public License
	15	* as published by the Free Software Foundation; either version
	16	* 2 of the License, or (at your option) any later version.
	17	*/
1da177e4 LT	18	#include <linux/socket.h>
	19	#include <linux/net.h>
	20	#include <linux/ipv6.h>
	21	#include <linux/proc_fs.h>
	22	#include <linux/seq_file.h>
	23	#include <linux/stddef.h>
457c4cbc	24	#include <net/net_namespace.h>
7f7d9a6b	25	#include <net/ip.h>
1da177e4 LT	26	#include <net/sock.h>
1da177e4 LT	27	#include <net/tcp.h>
1781f7f5	28	#include <net/udp.h>
1da177e4 LT	29	#include <net/transp_v6.h>
	30	#include <net/ipv6.h>
	31
1da177e4 LT	32	static int sockstat6_seq_show(struct seq_file seq, void v)
1da177e4 LT	33	{
dfb12eb7 PE	34	struct net *net = seq->private;
dfb12eb7 PE	35
1da177e4	36	seq_printf(seq, "TCP6: inuse %d\n",
dfb12eb7	37	sock_prot_inuse_get(net, &tcpv6_prot));
1da177e4	38	seq_printf(seq, "UDP6: inuse %d\n",
dfb12eb7	39	sock_prot_inuse_get(net, &udpv6_prot));
ba4e58ec	40	seq_printf(seq, "UDPLITE6: inuse %d\n",
dfb12eb7	41	sock_prot_inuse_get(net, &udplitev6_prot));
1da177e4	42	seq_printf(seq, "RAW6: inuse %d\n",
dfb12eb7	43	sock_prot_inuse_get(net, &rawv6_prot));
1da177e4	44	seq_printf(seq, "FRAG6: inuse %d memory %d\n",
dfb12eb7	45	ip6_frag_nqueues(net), ip6_frag_mem(net));
1da177e4 LT	46	return 0;
	47	}
	48
35f0a5df DL	49	static int sockstat6_seq_open(struct inode inode, struct file file)
	50	{
	51	return single_open_net(inode, file, sockstat6_seq_show);
	52	}
	53
	54	static const struct file_operations sockstat6_seq_fops = {
	55	.owner = THIS_MODULE,
	56	.open = sockstat6_seq_open,
	57	.read = seq_read,
	58	.llseek = seq_lseek,
	59	.release = single_release_net,
	60	};
	61
1da177e4 LT	62	static struct snmp_mib snmp6_ipstats_list[] = {
1da177e4 LT	63	/* ipv6 mib according to RFC 2465 */
edf391ff	64	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
1da177e4 LT	65	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
	66	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
	67	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
	68	SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
	69	SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
	70	SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
	71	SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
	72	SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
	73	SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
edf391ff	74	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
1da177e4 LT	75	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
	76	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
	77	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
	78	SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
	79	SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
	80	SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
	81	SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
	82	SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
	83	SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
	84	SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
	85	SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
edf391ff NH	86	SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
	87	SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
	88	SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
	89	SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
	90	SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
	91	SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
1da177e4 LT	92	SNMP_MIB_SENTINEL
	93	};
	94
	95	static struct snmp_mib snmp6_icmp6_list[] = {
14878f75	96	/* icmpv6 mib according to RFC 2466 */
1da177e4 LT	97	SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
1da177e4 LT	98	SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
1da177e4	99	SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
1da177e4 LT	100	SNMP_MIB_SENTINEL
	101	};
	102
14878f75	103	/* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
36cbd3dc	104	static const char *const icmp6type2name[256] = {
14878f75 DS	105	[ICMPV6_DEST_UNREACH] = "DestUnreachs",
	106	[ICMPV6_PKT_TOOBIG] = "PktTooBigs",
	107	[ICMPV6_TIME_EXCEED] = "TimeExcds",
	108	[ICMPV6_PARAMPROB] = "ParmProblems",
fa95c283	109	[ICMPV6_ECHO_REQUEST] = "Echos",
14878f75 DS	110	[ICMPV6_ECHO_REPLY] = "EchoReplies",
	111	[ICMPV6_MGM_QUERY] = "GroupMembQueries",
	112	[ICMPV6_MGM_REPORT] = "GroupMembResponses",
	113	[ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
	114	[ICMPV6_MLD2_REPORT] = "MLDv2Reports",
	115	[NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
	116	[NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
	117	[NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
	118	[NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
fa95c283	119	[NDISC_REDIRECT] = "Redirects",
14878f75 DS	120	};
	121
	122
1da177e4 LT	123	static struct snmp_mib snmp6_udp6_list[] = {
	124	SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
	125	SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
	126	SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
	127	SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
	128	SNMP_MIB_SENTINEL
	129	};
	130
ba4e58ec GR	131	static struct snmp_mib snmp6_udplite6_list[] = {
	132	SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
	133	SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
	134	SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
	135	SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
	136	SNMP_MIB_SENTINEL
	137	};
	138
14878f75 DS	139	static void snmp6_seq_show_icmpv6msg(struct seq_file seq, void *mib)
14878f75 DS	140	{
5ece6c2d	141	char name[32];
14878f75 DS	142	int i;
	143
	144	/* print by name -- deprecated items */
	145	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
	146	int icmptype;
36cbd3dc	147	const char *p;
14878f75 DS	148
	149	icmptype = i & 0xff;
	150	p = icmp6type2name[icmptype];
	151	if (!p) /* don't print un-named types here */
	152	continue;
5ece6c2d	153	snprintf(name, sizeof(name), "Icmp6%s%s",
14878f75 DS	154	i & 0x100 ? "Out" : "In", p);
	155	seq_printf(seq, "%-32s\t%lu\n", name,
	156	snmp_fold_field(mib, i));
	157	}
	158
	159	/* print by number (nonzero only) - ICMPMsgStat format */
	160	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
	161	unsigned long val;
	162
	163	val = snmp_fold_field(mib, i);
	164	if (!val)
	165	continue;
5ece6c2d	166	snprintf(name, sizeof(name), "Icmp6%sType%u",
14878f75 DS	167	i & 0x100 ? "Out" : "In", i & 0xff);
	168	seq_printf(seq, "%-32s\t%lu\n", name, val);
	169	}
	170	return;
	171	}
	172
1da177e4 LT	173	static inline void
	174	snmp6_seq_show_item(struct seq_file seq, void mib, struct snmp_mib itemlist)
	175	{
	176	int i;
	177	for (i=0; itemlist[i].name; i++)
1ab1457c	178	seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
7f7d9a6b	179	snmp_fold_field(mib, itemlist[i].entry));
1da177e4 LT	180	}
	181
	182	static int snmp6_seq_show(struct seq_file seq, void v)
	183	{
2b4209e4 DL	184	struct net net = (struct net )seq->private;
2b4209e4 DL	185
9261e537 DL	186	snmp6_seq_show_item(seq, (void **)net->mib.ipv6_statistics,
	187	snmp6_ipstats_list);
	188	snmp6_seq_show_item(seq, (void **)net->mib.icmpv6_statistics,
	189	snmp6_icmp6_list);
	190	snmp6_seq_show_icmpv6msg(seq, (void **)net->mib.icmpv6msg_statistics);
0c7ed677 DL	191	snmp6_seq_show_item(seq, (void **)net->mib.udp_stats_in6,
0c7ed677 DL	192	snmp6_udp6_list);
be713a44 DL	193	snmp6_seq_show_item(seq, (void **)net->mib.udplite_stats_in6,
be713a44 DL	194	snmp6_udplite6_list);
1da177e4 LT	195	return 0;
	196	}
	197
1da177e4 LT	198	static int snmp6_seq_open(struct inode inode, struct file file)
1da177e4 LT	199	{
2b4209e4	200	return single_open_net(inode, file, snmp6_seq_show);
1da177e4 LT	201	}
1da177e4 LT	202
9a32144e	203	static const struct file_operations snmp6_seq_fops = {
1da177e4 LT	204	.owner = THIS_MODULE,
	205	.open = snmp6_seq_open,
	206	.read = seq_read,
	207	.llseek = seq_lseek,
2b4209e4	208	.release = single_release_net,
1da177e4 LT	209	};
1da177e4 LT	210
7b43ccec DL	211	static int snmp6_dev_seq_show(struct seq_file seq, void v)
	212	{
	213	struct inet6_dev idev = (struct inet6_dev )seq->private;
	214
	215	seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
	216	snmp6_seq_show_item(seq, (void **)idev->stats.ipv6, snmp6_ipstats_list);
	217	snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list);
	218	snmp6_seq_show_icmpv6msg(seq, (void **)idev->stats.icmpv6msg);
	219	return 0;
	220	}
	221
	222	static int snmp6_dev_seq_open(struct inode inode, struct file file)
	223	{
	224	return single_open(file, snmp6_dev_seq_show, PDE(inode)->data);
	225	}
	226
	227	static const struct file_operations snmp6_dev_seq_fops = {
	228	.owner = THIS_MODULE,
	229	.open = snmp6_dev_seq_open,
	230	.read = seq_read,
	231	.llseek = seq_lseek,
	232	.release = single_release,
	233	};
	234
1da177e4 LT	235	int snmp6_register_dev(struct inet6_dev *idev)
	236	{
	237	struct proc_dir_entry *p;
835bcc04	238	struct net *net;
1da177e4 LT	239
	240	if (!idev \|\| !idev->dev)
	241	return -EINVAL;
	242
835bcc04	243	net = dev_net(idev->dev);
835bcc04	244	if (!net->mib.proc_net_devsnmp6)
1da177e4 LT	245	return -ENOENT;
1da177e4 LT	246
0bb53a66	247	p = proc_create_data(idev->dev->name, S_IRUGO,
7b43ccec DL	248	net->mib.proc_net_devsnmp6,
7b43ccec DL	249	&snmp6_dev_seq_fops, idev);
1da177e4 LT	250	if (!p)
	251	return -ENOMEM;
	252
1da177e4 LT	253	idev->stats.proc_dir_entry = p;
	254	return 0;
	255	}
	256
	257	int snmp6_unregister_dev(struct inet6_dev *idev)
	258	{
835bcc04 DL	259	struct net *net = dev_net(idev->dev);
835bcc04 DL	260	if (!net->mib.proc_net_devsnmp6)
1da177e4 LT	261	return -ENOENT;
	262	if (!idev \|\| !idev->stats.proc_dir_entry)
	263	return -EINVAL;
	264	remove_proc_entry(idev->stats.proc_dir_entry->name,
835bcc04	265	net->mib.proc_net_devsnmp6);
5632c515	266	idev->stats.proc_dir_entry = NULL;
1da177e4 LT	267	return 0;
	268	}
	269
d0538ca3 PE	270	static int ipv6_proc_init_net(struct net *net)
	271	{
	272	if (!proc_net_fops_create(net, "sockstat6", S_IRUGO,
	273	&sockstat6_seq_fops))
	274	return -ENOMEM;
06f38527 DL	275
	276	if (!proc_net_fops_create(net, "snmp6", S_IRUGO, &snmp6_seq_fops))
	277	goto proc_snmp6_fail;
	278
	279	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
	280	if (!net->mib.proc_net_devsnmp6)
	281	goto proc_dev_snmp6_fail;
d0538ca3	282	return 0;
06f38527 DL	283
	284	proc_snmp6_fail:
	285	proc_net_remove(net, "sockstat6");
	286	proc_dev_snmp6_fail:
	287	proc_net_remove(net, "dev_snmp6");
	288	return -ENOMEM;
d0538ca3 PE	289	}
	290
	291	static void ipv6_proc_exit_net(struct net *net)
	292	{
	293	proc_net_remove(net, "sockstat6");
06f38527 DL	294	proc_net_remove(net, "dev_snmp6");
06f38527 DL	295	proc_net_remove(net, "snmp6");
d0538ca3 PE	296	}
	297
	298	static struct pernet_operations ipv6_proc_ops = {
	299	.init = ipv6_proc_init_net,
	300	.exit = ipv6_proc_exit_net,
	301	};
	302
1da177e4 LT	303	int __init ipv6_misc_proc_init(void)
1da177e4 LT	304	{
06f38527	305	return register_pernet_subsys(&ipv6_proc_ops);
1da177e4 LT	306	}
	307
	308	void ipv6_misc_proc_exit(void)
	309	{
d0538ca3	310	unregister_pernet_subsys(&ipv6_proc_ops);
1da177e4 LT	311	}
1da177e4 LT	312