[NETFILTER]: nf_conntrack: fix helper module unload races
[linux-2.6-block.git] / net / ipv6 / udplite.c
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1/*
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
f5b99bcd 20static int udplitev6_rcv(struct sk_buff **pskb)
ba4e58ec 21{
759e5d00 22 return __udp6_lib_rcv(pskb, udplite_hash, IPPROTO_UDPLITE);
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23}
24
f5b99bcd
AB
25static void udplitev6_err(struct sk_buff *skb,
26 struct inet6_skb_parm *opt,
27 int type, int code, int offset, __be32 info)
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28{
29 return __udp6_lib_err(skb, opt, type, code, offset, info, udplite_hash);
30}
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
f5b99bcd 38static int udplite_v6_get_port(struct sock *sk, unsigned short snum)
ba4e58ec 39{
fc038410 40 return udplite_get_port(sk, snum, &udp_ipv6_ops);
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41}
42
43struct proto udplitev6_prot = {
44 .name = "UDPLITEv6",
45 .owner = THIS_MODULE,
46 .close = udp_lib_close,
47 .connect = ip6_datagram_connect,
48 .disconnect = udp_disconnect,
49 .ioctl = udp_ioctl,
50 .init = udplite_sk_init,
51 .destroy = udpv6_destroy_sock,
52 .setsockopt = udpv6_setsockopt,
53 .getsockopt = udpv6_getsockopt,
54 .sendmsg = udpv6_sendmsg,
55 .recvmsg = udpv6_recvmsg,
56 .backlog_rcv = udpv6_queue_rcv_skb,
57 .hash = udp_lib_hash,
58 .unhash = udp_lib_unhash,
59 .get_port = udplite_v6_get_port,
60 .obj_size = sizeof(struct udp6_sock),
61#ifdef CONFIG_COMPAT
62 .compat_setsockopt = compat_udpv6_setsockopt,
63 .compat_getsockopt = compat_udpv6_getsockopt,
64#endif
65};
66
67static struct inet_protosw udplite6_protosw = {
68 .type = SOCK_DGRAM,
69 .protocol = IPPROTO_UDPLITE,
70 .prot = &udplitev6_prot,
71 .ops = &inet6_dgram_ops,
72 .capability = -1,
73 .no_check = 0,
74 .flags = INET_PROTOSW_PERMANENT,
75};
76
77void __init udplitev6_init(void)
78{
79 if (inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE) < 0)
80 printk(KERN_ERR "%s: Could not register.\n", __FUNCTION__);
81
82 inet6_register_protosw(&udplite6_protosw);
83}
84
85#ifdef CONFIG_PROC_FS
86static struct file_operations udplite6_seq_fops;
87static struct udp_seq_afinfo udplite6_seq_afinfo = {
88 .owner = THIS_MODULE,
89 .name = "udplite6",
90 .family = AF_INET6,
91 .hashtable = udplite_hash,
92 .seq_show = udp6_seq_show,
93 .seq_fops = &udplite6_seq_fops,
94};
95
96int __init udplite6_proc_init(void)
97{
98 return udp_proc_register(&udplite6_seq_afinfo);
99}
100
101void udplite6_proc_exit(void)
102{
103 udp_proc_unregister(&udplite6_seq_afinfo);
104}
105#endif