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

/*
 *  UDPLITEv6   An implementation of the UDP-Lite protocol over IPv6.
 *              See also net/ipv4/udplite.c
 *
 *  Authors:    Gerrit Renker       <gerrit@erg.abdn.ac.uk>
 *
 *  Changes:
 *  Fixes:
 *		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/export.h>
#include "udp_impl.h"

static int udplitev6_rcv(struct sk_buff *skb)
{
	return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
}

static void udplitev6_err(struct sk_buff *skb,
			  struct inet6_skb_parm *opt,
			  u8 type, u8 code, int offset, __be32 info)
{
	__udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table);
}

static const struct inet6_protocol udplitev6_protocol = {
	.handler	=	udplitev6_rcv,
	.err_handler	=	udplitev6_err,
	.flags		=	INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};

struct proto udplitev6_prot = {
	.name		   = "UDPLITEv6",
	.owner		   = THIS_MODULE,
	.close		   = udp_lib_close,
	.connect	   = ip6_datagram_connect,
	.disconnect	   = udp_disconnect,
	.ioctl		   = udp_ioctl,
	.init		   = udplite_sk_init,
	.destroy	   = udpv6_destroy_sock,
	.setsockopt	   = udpv6_setsockopt,
	.getsockopt	   = udpv6_getsockopt,
	.sendmsg	   = udpv6_sendmsg,
	.recvmsg	   = udpv6_recvmsg,
	.backlog_rcv	   = udpv6_queue_rcv_skb,
	.hash		   = udp_lib_hash,
	.unhash		   = udp_lib_unhash,
	.get_port	   = udp_v6_get_port,
	.obj_size	   = sizeof(struct udp6_sock),
	.slab_flags	   = SLAB_DESTROY_BY_RCU,
	.h.udp_table	   = &udplite_table,
#ifdef CONFIG_COMPAT
	.compat_setsockopt = compat_udpv6_setsockopt,
	.compat_getsockopt = compat_udpv6_getsockopt,
#endif
	.clear_sk	   = udp_v6_clear_sk,
};

static struct inet_protosw udplite6_protosw = {
	.type		= SOCK_DGRAM,
	.protocol	= IPPROTO_UDPLITE,
	.prot		= &udplitev6_prot,
	.ops		= &inet6_dgram_ops,
	.no_check	= 0,
	.flags		= INET_PROTOSW_PERMANENT,
};

int __init udplitev6_init(void)
{
	int ret;

	ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
	if (ret)
		goto out;

	ret = inet6_register_protosw(&udplite6_protosw);
	if (ret)
		goto out_udplitev6_protocol;
out:
	return ret;

out_udplitev6_protocol:
	inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
	goto out;
}

void udplitev6_exit(void)
{
	inet6_unregister_protosw(&udplite6_protosw);
	inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
}

#ifdef CONFIG_PROC_FS

static const struct file_operations udplite6_afinfo_seq_fops = {
	.owner    = THIS_MODULE,
	.open     = udp_seq_open,
	.read     = seq_read,
	.llseek   = seq_lseek,
	.release  = seq_release_net
};

static struct udp_seq_afinfo udplite6_seq_afinfo = {
	.name		= "udplite6",
	.family		= AF_INET6,
	.udp_table	= &udplite_table,
	.seq_fops	= &udplite6_afinfo_seq_fops,
	.seq_ops	= {
		.show		= udp6_seq_show,
	},
};

static int __net_init udplite6_proc_init_net(struct net *net)
{
	return udp_proc_register(net, &udplite6_seq_afinfo);
}

static void __net_exit udplite6_proc_exit_net(struct net *net)
{
	udp_proc_unregister(net, &udplite6_seq_afinfo);
}

static struct pernet_operations udplite6_net_ops = {
	.init = udplite6_proc_init_net,
	.exit = udplite6_proc_exit_net,
};

int __init udplite6_proc_init(void)
{
	return register_pernet_subsys(&udplite6_net_ops);
}

void udplite6_proc_exit(void)
{
	unregister_pernet_subsys(&udplite6_net_ops);
}
#endif
Commit	Line	Data
ba4e58ec GR	1	/*
	2	* UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6.
	3	* See also net/ipv4/udplite.c
	4	*
ba4e58ec GR	5	* Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk>
	6	*
	7	* Changes:
	8	* Fixes:
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License
	11	* as published by the Free Software Foundation; either version
	12	* 2 of the License, or (at your option) any later version.
	13	*/
bc3b2d7f	14	#include <linux/export.h>
ba4e58ec GR	15	#include "udp_impl.h"
ba4e58ec GR	16
e5bbef20	17	static int udplitev6_rcv(struct sk_buff *skb)
ba4e58ec	18	{
645ca708	19	return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
ba4e58ec GR	20	}
ba4e58ec GR	21
f5b99bcd AB	22	static void udplitev6_err(struct sk_buff *skb,
f5b99bcd AB	23	struct inet6_skb_parm *opt,
d5fdd6ba	24	u8 type, u8 code, int offset, __be32 info)
ba4e58ec	25	{
645ca708	26	__udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table);
ba4e58ec GR	27	}
ba4e58ec GR	28
41135cc8	29	static const struct inet6_protocol udplitev6_protocol = {
ba4e58ec GR	30	.handler = udplitev6_rcv,
	31	.err_handler = udplitev6_err,
	32	.flags = INET6_PROTO_NOPOLICY\|INET6_PROTO_FINAL,
	33	};
	34
ba4e58ec GR	35	struct proto udplitev6_prot = {
	36	.name = "UDPLITEv6",
	37	.owner = THIS_MODULE,
	38	.close = udp_lib_close,
	39	.connect = ip6_datagram_connect,
	40	.disconnect = udp_disconnect,
	41	.ioctl = udp_ioctl,
	42	.init = udplite_sk_init,
	43	.destroy = udpv6_destroy_sock,
	44	.setsockopt = udpv6_setsockopt,
	45	.getsockopt = udpv6_getsockopt,
	46	.sendmsg = udpv6_sendmsg,
	47	.recvmsg = udpv6_recvmsg,
	48	.backlog_rcv = udpv6_queue_rcv_skb,
	49	.hash = udp_lib_hash,
	50	.unhash = udp_lib_unhash,
6ba5a3c5	51	.get_port = udp_v6_get_port,
ba4e58ec	52	.obj_size = sizeof(struct udp6_sock),
271b72c7	53	.slab_flags = SLAB_DESTROY_BY_RCU,
645ca708	54	.h.udp_table = &udplite_table,
ba4e58ec GR	55	#ifdef CONFIG_COMPAT
	56	.compat_setsockopt = compat_udpv6_setsockopt,
	57	.compat_getsockopt = compat_udpv6_getsockopt,
	58	#endif
f77d6021	59	.clear_sk = udp_v6_clear_sk,
ba4e58ec GR	60	};
	61
	62	static struct inet_protosw udplite6_protosw = {
	63	.type = SOCK_DGRAM,
	64	.protocol = IPPROTO_UDPLITE,
	65	.prot = &udplitev6_prot,
	66	.ops = &inet6_dgram_ops,
ba4e58ec GR	67	.no_check = 0,
	68	.flags = INET_PROTOSW_PERMANENT,
	69	};
	70
7f4e4868	71	int __init udplitev6_init(void)
ba4e58ec	72	{
7f4e4868	73	int ret;
ba4e58ec	74
7f4e4868 DL	75	ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
	76	if (ret)
	77	goto out;
	78
	79	ret = inet6_register_protosw(&udplite6_protosw);
	80	if (ret)
	81	goto out_udplitev6_protocol;
	82	out:
	83	return ret;
	84
	85	out_udplitev6_protocol:
	86	inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
	87	goto out;
	88	}
	89
09f7709f	90	void udplitev6_exit(void)
7f4e4868 DL	91	{
	92	inet6_unregister_protosw(&udplite6_protosw);
	93	inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
ba4e58ec GR	94	}
	95
	96	#ifdef CONFIG_PROC_FS
73cb88ec AV	97
	98	static const struct file_operations udplite6_afinfo_seq_fops = {
	99	.owner = THIS_MODULE,
	100	.open = udp_seq_open,
	101	.read = seq_read,
	102	.llseek = seq_lseek,
	103	.release = seq_release_net
	104	};
	105
ba4e58ec	106	static struct udp_seq_afinfo udplite6_seq_afinfo = {
ba4e58ec GR	107	.name = "udplite6",
ba4e58ec GR	108	.family = AF_INET6,
645ca708	109	.udp_table = &udplite_table,
73cb88ec	110	.seq_fops = &udplite6_afinfo_seq_fops,
dda61925 DL	111	.seq_ops = {
	112	.show = udp6_seq_show,
	113	},
ba4e58ec GR	114	};
ba4e58ec GR	115
2c8c1e72	116	static int __net_init udplite6_proc_init_net(struct net *net)
84c375af PE	117	{
	118	return udp_proc_register(net, &udplite6_seq_afinfo);
	119	}
	120
2c8c1e72	121	static void __net_exit udplite6_proc_exit_net(struct net *net)
84c375af PE	122	{
	123	udp_proc_unregister(net, &udplite6_seq_afinfo);
	124	}
	125
	126	static struct pernet_operations udplite6_net_ops = {
	127	.init = udplite6_proc_init_net,
	128	.exit = udplite6_proc_exit_net,
	129	};
	130
ba4e58ec GR	131	int __init udplite6_proc_init(void)
ba4e58ec GR	132	{
84c375af	133	return register_pernet_subsys(&udplite6_net_ops);
ba4e58ec GR	134	}
	135
	136	void udplite6_proc_exit(void)
	137	{
84c375af	138	unregister_pernet_subsys(&udplite6_net_ops);
ba4e58ec GR	139	}
ba4e58ec GR	140	#endif