1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6.
4 * See also net/ipv4/udplite.c
6 * Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk>
11 #include <linux/export.h>
12 #include <linux/proc_fs.h>
15 static int udplitev6_rcv(struct sk_buff *skb)
17 return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE);
20 static int udplitev6_err(struct sk_buff *skb,
21 struct inet6_skb_parm *opt,
22 u8 type, u8 code, int offset, __be32 info)
24 return __udp6_lib_err(skb, opt, type, code, offset, info,
28 static const struct inet6_protocol udplitev6_protocol = {
29 .handler = udplitev6_rcv,
30 .err_handler = udplitev6_err,
31 .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
34 struct proto udplitev6_prot = {
37 .close = udp_lib_close,
38 .connect = ip6_datagram_connect,
39 .disconnect = udp_disconnect,
41 .init = udplite_sk_init,
42 .destroy = udpv6_destroy_sock,
43 .setsockopt = udpv6_setsockopt,
44 .getsockopt = udpv6_getsockopt,
45 .sendmsg = udpv6_sendmsg,
46 .recvmsg = udpv6_recvmsg,
48 .unhash = udp_lib_unhash,
49 .rehash = udp_v6_rehash,
50 .get_port = udp_v6_get_port,
51 .memory_allocated = &udp_memory_allocated,
52 .sysctl_mem = sysctl_udp_mem,
53 .obj_size = sizeof(struct udp6_sock),
54 .h.udp_table = &udplite_table,
57 static struct inet_protosw udplite6_protosw = {
59 .protocol = IPPROTO_UDPLITE,
60 .prot = &udplitev6_prot,
61 .ops = &inet6_dgram_ops,
62 .flags = INET_PROTOSW_PERMANENT,
65 int __init udplitev6_init(void)
69 ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
73 ret = inet6_register_protosw(&udplite6_protosw);
75 goto out_udplitev6_protocol;
79 out_udplitev6_protocol:
80 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
84 void udplitev6_exit(void)
86 inet6_unregister_protosw(&udplite6_protosw);
87 inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE);
91 static struct udp_seq_afinfo udplite6_seq_afinfo = {
93 .udp_table = &udplite_table,
96 static int __net_init udplite6_proc_init_net(struct net *net)
98 if (!proc_create_net_data("udplite6", 0444, net->proc_net,
99 &udp6_seq_ops, sizeof(struct udp_iter_state),
100 &udplite6_seq_afinfo))
105 static void __net_exit udplite6_proc_exit_net(struct net *net)
107 remove_proc_entry("udplite6", net->proc_net);
110 static struct pernet_operations udplite6_net_ops = {
111 .init = udplite6_proc_init_net,
112 .exit = udplite6_proc_exit_net,
115 int __init udplite6_proc_init(void)
117 return register_pernet_subsys(&udplite6_net_ops);
120 void udplite6_proc_exit(void)
122 unregister_pernet_subsys(&udplite6_net_ops);