2 * UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6.
3 * See also net/ipv4/udplite.c
5 * Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk>
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
14 #include <linux/export.h>
17 static int udplitev6_sk_init(struct sock *sk)
20 udp_sk(sk)->pcflag = UDPLITE_BIT;
24 static int udplitev6_rcv(struct sk_buff *skb)
26 return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
29 static void udplitev6_err(struct sk_buff *skb,
30 struct inet6_skb_parm *opt,
31 u8 type, u8 code, int offset, __be32 info)
33 __udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table);
36 static const struct inet6_protocol udplitev6_protocol = {
37 .handler = udplitev6_rcv,
38 .err_handler = udplitev6_err,
39 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
42 struct proto udplitev6_prot = {
45 .close = udp_lib_close,
46 .connect = ip6_datagram_connect,
47 .disconnect = udp_disconnect,
49 .init = udplitev6_sk_init,
50 .destroy = udpv6_destroy_sock,
51 .setsockopt = udpv6_setsockopt,
52 .getsockopt = udpv6_getsockopt,
53 .sendmsg = udpv6_sendmsg,
54 .recvmsg = udpv6_recvmsg,
56 .unhash = udp_lib_unhash,
57 .get_port = udp_v6_get_port,
58 .memory_allocated = &udp_memory_allocated,
59 .sysctl_mem = sysctl_udp_mem,
60 .obj_size = sizeof(struct udp6_sock),
61 .h.udp_table = &udplite_table,
63 .compat_setsockopt = compat_udpv6_setsockopt,
64 .compat_getsockopt = compat_udpv6_getsockopt,
68 static struct inet_protosw udplite6_protosw = {
70 .protocol = IPPROTO_UDPLITE,
71 .prot = &udplitev6_prot,
72 .ops = &inet6_dgram_ops,
73 .flags = INET_PROTOSW_PERMANENT,
76 int __init udplitev6_init(void)
80 ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
84 ret = inet6_register_protosw(&udplite6_protosw);
86 goto out_udplitev6_protocol;
90 out_udplitev6_protocol:
91 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
95 void udplitev6_exit(void)
97 inet6_unregister_protosw(&udplite6_protosw);
98 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
101 #ifdef CONFIG_PROC_FS
103 static const struct file_operations udplite6_afinfo_seq_fops = {
104 .owner = THIS_MODULE,
105 .open = udp_seq_open,
108 .release = seq_release_net
111 static struct udp_seq_afinfo udplite6_seq_afinfo = {
114 .udp_table = &udplite_table,
115 .seq_fops = &udplite6_afinfo_seq_fops,
117 .show = udp6_seq_show,
121 static int __net_init udplite6_proc_init_net(struct net *net)
123 return udp_proc_register(net, &udplite6_seq_afinfo);
126 static void __net_exit udplite6_proc_exit_net(struct net *net)
128 udp_proc_unregister(net, &udplite6_seq_afinfo);
131 static struct pernet_operations udplite6_net_ops = {
132 .init = udplite6_proc_init_net,
133 .exit = udplite6_proc_exit_net,
136 int __init udplite6_proc_init(void)
138 return register_pernet_subsys(&udplite6_net_ops);
141 void udplite6_proc_exit(void)
143 unregister_pernet_subsys(&udplite6_net_ops);