Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 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 | |
Herbert Xu | e5bbef2 | 2007-10-15 12:50:28 -0700 | [diff] [blame] | 20 | static int udplitev6_rcv(struct sk_buff *skb) |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 21 | { |
Herbert Xu | e5bbef2 | 2007-10-15 12:50:28 -0700 | [diff] [blame] | 22 | return __udp6_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE); |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 23 | } |
| 24 | |
Adrian Bunk | f5b99bc | 2006-11-30 17:22:29 -0800 | [diff] [blame] | 25 | static void udplitev6_err(struct sk_buff *skb, |
| 26 | struct inet6_skb_parm *opt, |
| 27 | int type, int code, int offset, __be32 info) |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 28 | { |
YOSHIFUJI Hideaki | 77d0d35 | 2008-01-22 17:09:55 +0900 | [diff] [blame] | 29 | __udp6_lib_err(skb, opt, type, code, offset, info, udplite_hash); |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 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 | |
Eric Dumazet | c5a432f | 2007-11-05 23:39:51 -0800 | [diff] [blame] | 38 | DEFINE_PROTO_INUSE(udplitev6) |
| 39 | |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 40 | struct proto udplitev6_prot = { |
| 41 | .name = "UDPLITEv6", |
| 42 | .owner = THIS_MODULE, |
| 43 | .close = udp_lib_close, |
| 44 | .connect = ip6_datagram_connect, |
| 45 | .disconnect = udp_disconnect, |
| 46 | .ioctl = udp_ioctl, |
| 47 | .init = udplite_sk_init, |
| 48 | .destroy = udpv6_destroy_sock, |
| 49 | .setsockopt = udpv6_setsockopt, |
| 50 | .getsockopt = udpv6_getsockopt, |
| 51 | .sendmsg = udpv6_sendmsg, |
| 52 | .recvmsg = udpv6_recvmsg, |
| 53 | .backlog_rcv = udpv6_queue_rcv_skb, |
| 54 | .hash = udp_lib_hash, |
| 55 | .unhash = udp_lib_unhash, |
Pavel Emelyanov | 6ba5a3c | 2008-03-22 16:51:21 -0700 | [diff] [blame] | 56 | .get_port = udp_v6_get_port, |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 57 | .obj_size = sizeof(struct udp6_sock), |
Pavel Emelyanov | 6ba5a3c | 2008-03-22 16:51:21 -0700 | [diff] [blame] | 58 | .h.udp_hash = udplite_hash, |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 59 | #ifdef CONFIG_COMPAT |
| 60 | .compat_setsockopt = compat_udpv6_setsockopt, |
| 61 | .compat_getsockopt = compat_udpv6_getsockopt, |
| 62 | #endif |
Eric Dumazet | c5a432f | 2007-11-05 23:39:51 -0800 | [diff] [blame] | 63 | REF_PROTO_INUSE(udplitev6) |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 64 | }; |
| 65 | |
| 66 | static struct inet_protosw udplite6_protosw = { |
| 67 | .type = SOCK_DGRAM, |
| 68 | .protocol = IPPROTO_UDPLITE, |
| 69 | .prot = &udplitev6_prot, |
| 70 | .ops = &inet6_dgram_ops, |
| 71 | .capability = -1, |
| 72 | .no_check = 0, |
| 73 | .flags = INET_PROTOSW_PERMANENT, |
| 74 | }; |
| 75 | |
Daniel Lezcano | 7f4e486 | 2007-12-11 02:25:35 -0800 | [diff] [blame] | 76 | int __init udplitev6_init(void) |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 77 | { |
Daniel Lezcano | 7f4e486 | 2007-12-11 02:25:35 -0800 | [diff] [blame] | 78 | int ret; |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 79 | |
Daniel Lezcano | 7f4e486 | 2007-12-11 02:25:35 -0800 | [diff] [blame] | 80 | ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); |
| 81 | if (ret) |
| 82 | goto out; |
| 83 | |
| 84 | ret = inet6_register_protosw(&udplite6_protosw); |
| 85 | if (ret) |
| 86 | goto out_udplitev6_protocol; |
| 87 | out: |
| 88 | return ret; |
| 89 | |
| 90 | out_udplitev6_protocol: |
| 91 | inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); |
| 92 | goto out; |
| 93 | } |
| 94 | |
Daniel Lezcano | 09f7709 | 2007-12-13 05:34:58 -0800 | [diff] [blame] | 95 | void udplitev6_exit(void) |
Daniel Lezcano | 7f4e486 | 2007-12-11 02:25:35 -0800 | [diff] [blame] | 96 | { |
| 97 | inet6_unregister_protosw(&udplite6_protosw); |
| 98 | inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | #ifdef CONFIG_PROC_FS |
| 102 | static struct file_operations udplite6_seq_fops; |
| 103 | static struct udp_seq_afinfo udplite6_seq_afinfo = { |
| 104 | .owner = THIS_MODULE, |
| 105 | .name = "udplite6", |
| 106 | .family = AF_INET6, |
| 107 | .hashtable = udplite_hash, |
| 108 | .seq_show = udp6_seq_show, |
| 109 | .seq_fops = &udplite6_seq_fops, |
| 110 | }; |
| 111 | |
Pavel Emelyanov | 84c375a | 2008-03-24 14:56:57 -0700 | [diff] [blame^] | 112 | static int udplite6_proc_init_net(struct net *net) |
| 113 | { |
| 114 | return udp_proc_register(net, &udplite6_seq_afinfo); |
| 115 | } |
| 116 | |
| 117 | static void udplite6_proc_exit_net(struct net *net) |
| 118 | { |
| 119 | udp_proc_unregister(net, &udplite6_seq_afinfo); |
| 120 | } |
| 121 | |
| 122 | static struct pernet_operations udplite6_net_ops = { |
| 123 | .init = udplite6_proc_init_net, |
| 124 | .exit = udplite6_proc_exit_net, |
| 125 | }; |
| 126 | |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 127 | int __init udplite6_proc_init(void) |
| 128 | { |
Pavel Emelyanov | 84c375a | 2008-03-24 14:56:57 -0700 | [diff] [blame^] | 129 | return register_pernet_subsys(&udplite6_net_ops); |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | void udplite6_proc_exit(void) |
| 133 | { |
Pavel Emelyanov | 84c375a | 2008-03-24 14:56:57 -0700 | [diff] [blame^] | 134 | unregister_pernet_subsys(&udplite6_net_ops); |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 135 | } |
| 136 | #endif |