]>
Commit | Line | Data |
---|---|---|
1 | // SPDX-License-Identifier: GPL-2.0-or-later | |
2 | /* | |
3 | * UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6. | |
4 | * See also net/ipv4/udplite.c | |
5 | * | |
6 | * Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk> | |
7 | * | |
8 | * Changes: | |
9 | * Fixes: | |
10 | */ | |
11 | #include <linux/export.h> | |
12 | #include <linux/proc_fs.h> | |
13 | #include "udp_impl.h" | |
14 | ||
15 | static int udplitev6_rcv(struct sk_buff *skb) | |
16 | { | |
17 | return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE); | |
18 | } | |
19 | ||
20 | static int udplitev6_err(struct sk_buff *skb, | |
21 | struct inet6_skb_parm *opt, | |
22 | u8 type, u8 code, int offset, __be32 info) | |
23 | { | |
24 | return __udp6_lib_err(skb, opt, type, code, offset, info, | |
25 | &udplite_table); | |
26 | } | |
27 | ||
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, | |
32 | }; | |
33 | ||
34 | struct proto udplitev6_prot = { | |
35 | .name = "UDPLITEv6", | |
36 | .owner = THIS_MODULE, | |
37 | .close = udp_lib_close, | |
38 | .connect = ip6_datagram_connect, | |
39 | .disconnect = udp_disconnect, | |
40 | .ioctl = udp_ioctl, | |
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, | |
47 | .hash = udp_lib_hash, | |
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, | |
55 | #ifdef CONFIG_COMPAT | |
56 | .compat_setsockopt = compat_udpv6_setsockopt, | |
57 | .compat_getsockopt = compat_udpv6_getsockopt, | |
58 | #endif | |
59 | }; | |
60 | ||
61 | static struct inet_protosw udplite6_protosw = { | |
62 | .type = SOCK_DGRAM, | |
63 | .protocol = IPPROTO_UDPLITE, | |
64 | .prot = &udplitev6_prot, | |
65 | .ops = &inet6_dgram_ops, | |
66 | .flags = INET_PROTOSW_PERMANENT, | |
67 | }; | |
68 | ||
69 | int __init udplitev6_init(void) | |
70 | { | |
71 | int ret; | |
72 | ||
73 | ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); | |
74 | if (ret) | |
75 | goto out; | |
76 | ||
77 | ret = inet6_register_protosw(&udplite6_protosw); | |
78 | if (ret) | |
79 | goto out_udplitev6_protocol; | |
80 | out: | |
81 | return ret; | |
82 | ||
83 | out_udplitev6_protocol: | |
84 | inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); | |
85 | goto out; | |
86 | } | |
87 | ||
88 | void udplitev6_exit(void) | |
89 | { | |
90 | inet6_unregister_protosw(&udplite6_protosw); | |
91 | inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); | |
92 | } | |
93 | ||
94 | #ifdef CONFIG_PROC_FS | |
95 | static struct udp_seq_afinfo udplite6_seq_afinfo = { | |
96 | .family = AF_INET6, | |
97 | .udp_table = &udplite_table, | |
98 | }; | |
99 | ||
100 | static int __net_init udplite6_proc_init_net(struct net *net) | |
101 | { | |
102 | if (!proc_create_net_data("udplite6", 0444, net->proc_net, | |
103 | &udp6_seq_ops, sizeof(struct udp_iter_state), | |
104 | &udplite6_seq_afinfo)) | |
105 | return -ENOMEM; | |
106 | return 0; | |
107 | } | |
108 | ||
109 | static void __net_exit udplite6_proc_exit_net(struct net *net) | |
110 | { | |
111 | remove_proc_entry("udplite6", net->proc_net); | |
112 | } | |
113 | ||
114 | static struct pernet_operations udplite6_net_ops = { | |
115 | .init = udplite6_proc_init_net, | |
116 | .exit = udplite6_proc_exit_net, | |
117 | }; | |
118 | ||
119 | int __init udplite6_proc_init(void) | |
120 | { | |
121 | return register_pernet_subsys(&udplite6_net_ops); | |
122 | } | |
123 | ||
124 | void udplite6_proc_exit(void) | |
125 | { | |
126 | unregister_pernet_subsys(&udplite6_net_ops); | |
127 | } | |
128 | #endif |