[INET]: inet_frag_evictor() must run with BH disabled
[linux-2.6] / net / ipv6 / udplite.c
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
18 DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6) __read_mostly;
19
20 static int udplitev6_rcv(struct sk_buff *skb)
21 {
22         return __udp6_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);
23 }
24
25 static 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
32 static struct inet6_protocol udplitev6_protocol = {
33         .handler        =       udplitev6_rcv,
34         .err_handler    =       udplitev6_err,
35         .flags          =       INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
36 };
37
38 static 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
43 DEFINE_PROTO_INUSE(udplitev6)
44
45 struct 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
70 static 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
80 int __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;
91 out:
92         return ret;
93
94 out_udplitev6_protocol:
95         inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
96         goto out;
97 }
98
99 void 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
106 static struct file_operations udplite6_seq_fops;
107 static 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
116 int __init udplite6_proc_init(void)
117 {
118         return udp_proc_register(&udplite6_seq_afinfo);
119 }
120
121 void udplite6_proc_exit(void)
122 {
123         udp_proc_unregister(&udplite6_seq_afinfo);
124 }
125 #endif