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-rw-r--r--net/ipv6/udplite.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
new file mode 100644
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+++ b/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
20static int udplitev6_rcv(struct sk_buff *skb)
21{
22 return __udp6_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);
23}
24
25static void udplitev6_err(struct sk_buff *skb,
26 struct inet6_skb_parm *opt,
27 int type, int code, int offset, __be32 info)
28{
29 __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
38static int udplite_v6_get_port(struct sock *sk, unsigned short snum)
39{
40 return udplite_get_port(sk, snum, ipv6_rcv_saddr_equal);
41}
42
43DEFINE_PROTO_INUSE(udplitev6)
44
45struct 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
67 REF_PROTO_INUSE(udplitev6)
68};
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
80int __init udplitev6_init(void)
81{
82 int ret;
83
84 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
99void udplitev6_exit(void)
100{
101 inet6_unregister_protosw(&udplite6_protosw);
102 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
103}
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