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_rcv(struct sk_buff
*skb
)
19 return __udp6_lib_rcv(skb
, &udplite_table
, IPPROTO_UDPLITE
);
22 static void udplitev6_err(struct sk_buff
*skb
,
23 struct inet6_skb_parm
*opt
,
24 u8 type
, u8 code
, int offset
, __be32 info
)
26 __udp6_lib_err(skb
, opt
, type
, code
, offset
, info
, &udplite_table
);
29 static const struct inet6_protocol udplitev6_protocol
= {
30 .handler
= udplitev6_rcv
,
31 .err_handler
= udplitev6_err
,
32 .flags
= INET6_PROTO_NOPOLICY
|INET6_PROTO_FINAL
,
35 struct proto udplitev6_prot
= {
38 .close
= udp_lib_close
,
39 .connect
= ip6_datagram_connect
,
40 .disconnect
= udp_disconnect
,
42 .init
= udplite_sk_init
,
43 .destroy
= udpv6_destroy_sock
,
44 .setsockopt
= udpv6_setsockopt
,
45 .getsockopt
= udpv6_getsockopt
,
46 .sendmsg
= udpv6_sendmsg
,
47 .recvmsg
= udpv6_recvmsg
,
48 .backlog_rcv
= udpv6_queue_rcv_skb
,
50 .unhash
= udp_lib_unhash
,
51 .get_port
= udp_v6_get_port
,
52 .obj_size
= sizeof(struct udp6_sock
),
53 .slab_flags
= SLAB_DESTROY_BY_RCU
,
54 .h
.udp_table
= &udplite_table
,
56 .compat_setsockopt
= compat_udpv6_setsockopt
,
57 .compat_getsockopt
= compat_udpv6_getsockopt
,
59 .clear_sk
= sk_prot_clear_portaddr_nulls
,
62 static struct inet_protosw udplite6_protosw
= {
64 .protocol
= IPPROTO_UDPLITE
,
65 .prot
= &udplitev6_prot
,
66 .ops
= &inet6_dgram_ops
,
68 .flags
= INET_PROTOSW_PERMANENT
,
71 int __init
udplitev6_init(void)
75 ret
= inet6_add_protocol(&udplitev6_protocol
, IPPROTO_UDPLITE
);
79 ret
= inet6_register_protosw(&udplite6_protosw
);
81 goto out_udplitev6_protocol
;
85 out_udplitev6_protocol
:
86 inet6_del_protocol(&udplitev6_protocol
, IPPROTO_UDPLITE
);
90 void udplitev6_exit(void)
92 inet6_unregister_protosw(&udplite6_protosw
);
93 inet6_del_protocol(&udplitev6_protocol
, IPPROTO_UDPLITE
);
98 static const struct file_operations udplite6_afinfo_seq_fops
= {
100 .open
= udp_seq_open
,
103 .release
= seq_release_net
106 static struct udp_seq_afinfo udplite6_seq_afinfo
= {
109 .udp_table
= &udplite_table
,
110 .seq_fops
= &udplite6_afinfo_seq_fops
,
112 .show
= udp6_seq_show
,
116 static int __net_init
udplite6_proc_init_net(struct net
*net
)
118 return udp_proc_register(net
, &udplite6_seq_afinfo
);
121 static void __net_exit
udplite6_proc_exit_net(struct net
*net
)
123 udp_proc_unregister(net
, &udplite6_seq_afinfo
);
126 static struct pernet_operations udplite6_net_ops
= {
127 .init
= udplite6_proc_init_net
,
128 .exit
= udplite6_proc_exit_net
,
131 int __init
udplite6_proc_init(void)
133 return register_pernet_subsys(&udplite6_net_ops
);
136 void udplite6_proc_exit(void)
138 unregister_pernet_subsys(&udplite6_net_ops
);