blob: ba162a824585b8fcecd2c1022c0c64d09faa68bc [file] [log] [blame]
Gerrit Renkerba4e58e2006-11-27 11:10:57 -08001/*
2 * UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6.
3 * See also net/ipv4/udplite.c
4 *
Gerrit Renkerba4e58e2006-11-27 11:10:57 -08005 * 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 */
14#include "udp_impl.h"
15
Herbert Xue5bbef22007-10-15 12:50:28 -070016static int udplitev6_rcv(struct sk_buff *skb)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080017{
Eric Dumazet645ca702008-10-29 01:41:45 -070018 return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080019}
20
Adrian Bunkf5b99bc2006-11-30 17:22:29 -080021static void udplitev6_err(struct sk_buff *skb,
22 struct inet6_skb_parm *opt,
23 int type, int code, int offset, __be32 info)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080024{
Eric Dumazet645ca702008-10-29 01:41:45 -070025 __udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080026}
27
28static struct inet6_protocol udplitev6_protocol = {
29 .handler = udplitev6_rcv,
30 .err_handler = udplitev6_err,
31 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
32};
33
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080034struct proto udplitev6_prot = {
35 .name = "UDPLITEv6",
36 .owner = THIS_MODULE,
37 .close = udp_lib_close,
38 .connect = ip6_datagram_connect,
39 .disconnect = udp_disconnect,
40 .ioctl = udp_ioctl,
41 .init = udplite_sk_init,
42 .destroy = udpv6_destroy_sock,
43 .setsockopt = udpv6_setsockopt,
44 .getsockopt = udpv6_getsockopt,
45 .sendmsg = udpv6_sendmsg,
46 .recvmsg = udpv6_recvmsg,
47 .backlog_rcv = udpv6_queue_rcv_skb,
48 .hash = udp_lib_hash,
49 .unhash = udp_lib_unhash,
Pavel Emelyanov6ba5a3c2008-03-22 16:51:21 -070050 .get_port = udp_v6_get_port,
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080051 .obj_size = sizeof(struct udp6_sock),
Eric Dumazet271b72c2008-10-29 02:11:14 -070052 .slab_flags = SLAB_DESTROY_BY_RCU,
Eric Dumazet645ca702008-10-29 01:41:45 -070053 .h.udp_table = &udplite_table,
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080054#ifdef CONFIG_COMPAT
55 .compat_setsockopt = compat_udpv6_setsockopt,
56 .compat_getsockopt = compat_udpv6_getsockopt,
57#endif
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080058};
59
60static struct inet_protosw udplite6_protosw = {
61 .type = SOCK_DGRAM,
62 .protocol = IPPROTO_UDPLITE,
63 .prot = &udplitev6_prot,
64 .ops = &inet6_dgram_ops,
65 .capability = -1,
66 .no_check = 0,
67 .flags = INET_PROTOSW_PERMANENT,
68};
69
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080070int __init udplitev6_init(void)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080071{
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080072 int ret;
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080073
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080074 ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
75 if (ret)
76 goto out;
77
78 ret = inet6_register_protosw(&udplite6_protosw);
79 if (ret)
80 goto out_udplitev6_protocol;
81out:
82 return ret;
83
84out_udplitev6_protocol:
85 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
86 goto out;
87}
88
Daniel Lezcano09f77092007-12-13 05:34:58 -080089void udplitev6_exit(void)
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080090{
91 inet6_unregister_protosw(&udplite6_protosw);
92 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080093}
94
95#ifdef CONFIG_PROC_FS
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080096static struct udp_seq_afinfo udplite6_seq_afinfo = {
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080097 .name = "udplite6",
98 .family = AF_INET6,
Eric Dumazet645ca702008-10-29 01:41:45 -070099 .udp_table = &udplite_table,
Denis V. Lunev4ad96d32008-03-28 18:25:53 -0700100 .seq_fops = {
101 .owner = THIS_MODULE,
102 },
Denis V. Lunevdda61922008-03-28 18:24:26 -0700103 .seq_ops = {
104 .show = udp6_seq_show,
105 },
Gerrit Renkerba4e58e2006-11-27 11:10:57 -0800106};
107
Pavel Emelyanov84c375a2008-03-24 14:56:57 -0700108static int udplite6_proc_init_net(struct net *net)
109{
110 return udp_proc_register(net, &udplite6_seq_afinfo);
111}
112
113static void udplite6_proc_exit_net(struct net *net)
114{
115 udp_proc_unregister(net, &udplite6_seq_afinfo);
116}
117
118static struct pernet_operations udplite6_net_ops = {
119 .init = udplite6_proc_init_net,
120 .exit = udplite6_proc_exit_net,
121};
122
Gerrit Renkerba4e58e2006-11-27 11:10:57 -0800123int __init udplite6_proc_init(void)
124{
Pavel Emelyanov84c375a2008-03-24 14:56:57 -0700125 return register_pernet_subsys(&udplite6_net_ops);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -0800126}
127
128void udplite6_proc_exit(void)
129{
Pavel Emelyanov84c375a2008-03-24 14:56:57 -0700130 unregister_pernet_subsys(&udplite6_net_ops);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -0800131}
132#endif