blob: 87d4202522ee167400f6ee2121c407c68315a91c [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 *
5 * Version: $Id: udplite.c,v 1.9 2006/10/19 08:28:10 gerrit Exp $
6 *
7 * Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk>
8 *
9 * Changes:
10 * Fixes:
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
15 */
16#include "udp_impl.h"
17
18DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6) __read_mostly;
19
Herbert Xue5bbef22007-10-15 12:50:28 -070020static int udplitev6_rcv(struct sk_buff *skb)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080021{
Herbert Xue5bbef22007-10-15 12:50:28 -070022 return __udp6_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080023}
24
Adrian Bunkf5b99bc2006-11-30 17:22:29 -080025static void udplitev6_err(struct sk_buff *skb,
26 struct inet6_skb_parm *opt,
27 int type, int code, int offset, __be32 info)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080028{
YOSHIFUJI Hideaki77d0d352008-01-22 17:09:55 +090029 __udp6_lib_err(skb, opt, type, code, offset, info, udplite_hash);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080030}
31
32static struct inet6_protocol udplitev6_protocol = {
33 .handler = udplitev6_rcv,
34 .err_handler = udplitev6_err,
35 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
36};
37
Adrian Bunkf5b99bc2006-11-30 17:22:29 -080038static int udplite_v6_get_port(struct sock *sk, unsigned short snum)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080039{
David S. Millerdf2bc452007-06-05 15:18:43 -070040 return udplite_get_port(sk, snum, ipv6_rcv_saddr_equal);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080041}
42
Eric Dumazetc5a432f2007-11-05 23:39:51 -080043DEFINE_PROTO_INUSE(udplitev6)
44
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080045struct proto udplitev6_prot = {
46 .name = "UDPLITEv6",
47 .owner = THIS_MODULE,
48 .close = udp_lib_close,
49 .connect = ip6_datagram_connect,
50 .disconnect = udp_disconnect,
51 .ioctl = udp_ioctl,
52 .init = udplite_sk_init,
53 .destroy = udpv6_destroy_sock,
54 .setsockopt = udpv6_setsockopt,
55 .getsockopt = udpv6_getsockopt,
56 .sendmsg = udpv6_sendmsg,
57 .recvmsg = udpv6_recvmsg,
58 .backlog_rcv = udpv6_queue_rcv_skb,
59 .hash = udp_lib_hash,
60 .unhash = udp_lib_unhash,
61 .get_port = udplite_v6_get_port,
62 .obj_size = sizeof(struct udp6_sock),
63#ifdef CONFIG_COMPAT
64 .compat_setsockopt = compat_udpv6_setsockopt,
65 .compat_getsockopt = compat_udpv6_getsockopt,
66#endif
Eric Dumazetc5a432f2007-11-05 23:39:51 -080067 REF_PROTO_INUSE(udplitev6)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080068};
69
70static struct inet_protosw udplite6_protosw = {
71 .type = SOCK_DGRAM,
72 .protocol = IPPROTO_UDPLITE,
73 .prot = &udplitev6_prot,
74 .ops = &inet6_dgram_ops,
75 .capability = -1,
76 .no_check = 0,
77 .flags = INET_PROTOSW_PERMANENT,
78};
79
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080080int __init udplitev6_init(void)
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080081{
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080082 int ret;
Gerrit Renkerba4e58e2006-11-27 11:10:57 -080083
Daniel Lezcano7f4e4862007-12-11 02:25:35 -080084 ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
85 if (ret)
86 goto out;
87
88 ret = inet6_register_protosw(&udplite6_protosw);
89 if (ret)
90 goto out_udplitev6_protocol;
91out:
92 return ret;
93
94out_udplitev6_protocol:
95 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
96 goto out;
97}
98
Daniel Lezcano09f77092007-12-13 05:34:58 -080099void udplitev6_exit(void)
Daniel Lezcano7f4e4862007-12-11 02:25:35 -0800100{
101 inet6_unregister_protosw(&udplite6_protosw);
102 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
Gerrit Renkerba4e58e2006-11-27 11:10:57 -0800103}
104
105#ifdef CONFIG_PROC_FS
106static struct file_operations udplite6_seq_fops;
107static struct udp_seq_afinfo udplite6_seq_afinfo = {
108 .owner = THIS_MODULE,
109 .name = "udplite6",
110 .family = AF_INET6,
111 .hashtable = udplite_hash,
112 .seq_show = udp6_seq_show,
113 .seq_fops = &udplite6_seq_fops,
114};
115
116int __init udplite6_proc_init(void)
117{
118 return udp_proc_register(&udplite6_seq_afinfo);
119}
120
121void udplite6_proc_exit(void)
122{
123 udp_proc_unregister(&udplite6_seq_afinfo);
124}
125#endif