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139 lines
3.4 KiB
139 lines
3.4 KiB
/* |
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* UDPLITEv6 An implementation of the UDP-Lite protocol over IPv6. |
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* See also net/ipv4/udplite.c |
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* |
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* Authors: Gerrit Renker <gerrit@erg.abdn.ac.uk> |
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* |
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* Changes: |
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* Fixes: |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#include <linux/export.h> |
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#include "udp_impl.h" |
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static int udplitev6_rcv(struct sk_buff *skb) |
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{ |
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return __udp6_lib_rcv(skb, &udplite_table, IPPROTO_UDPLITE); |
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} |
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static void udplitev6_err(struct sk_buff *skb, |
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struct inet6_skb_parm *opt, |
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u8 type, u8 code, int offset, __be32 info) |
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{ |
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__udp6_lib_err(skb, opt, type, code, offset, info, &udplite_table); |
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} |
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static const struct inet6_protocol udplitev6_protocol = { |
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.handler = udplitev6_rcv, |
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.err_handler = udplitev6_err, |
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.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL, |
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}; |
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struct proto udplitev6_prot = { |
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.name = "UDPLITEv6", |
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.owner = THIS_MODULE, |
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.close = udp_lib_close, |
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.connect = ip6_datagram_connect, |
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.disconnect = udp_disconnect, |
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.ioctl = udp_ioctl, |
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.init = udplite_sk_init, |
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.destroy = udpv6_destroy_sock, |
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.setsockopt = udpv6_setsockopt, |
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.getsockopt = udpv6_getsockopt, |
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.sendmsg = udpv6_sendmsg, |
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.recvmsg = udpv6_recvmsg, |
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.backlog_rcv = udpv6_queue_rcv_skb, |
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.hash = udp_lib_hash, |
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.unhash = udp_lib_unhash, |
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.get_port = udp_v6_get_port, |
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.obj_size = sizeof(struct udp6_sock), |
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.slab_flags = SLAB_DESTROY_BY_RCU, |
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.h.udp_table = &udplite_table, |
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#ifdef CONFIG_COMPAT |
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.compat_setsockopt = compat_udpv6_setsockopt, |
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.compat_getsockopt = compat_udpv6_getsockopt, |
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#endif |
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.clear_sk = udp_v6_clear_sk, |
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}; |
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static struct inet_protosw udplite6_protosw = { |
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.type = SOCK_DGRAM, |
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.protocol = IPPROTO_UDPLITE, |
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.prot = &udplitev6_prot, |
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.ops = &inet6_dgram_ops, |
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.flags = INET_PROTOSW_PERMANENT, |
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}; |
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int __init udplitev6_init(void) |
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{ |
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int ret; |
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ret = inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); |
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if (ret) |
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goto out; |
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ret = inet6_register_protosw(&udplite6_protosw); |
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if (ret) |
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goto out_udplitev6_protocol; |
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out: |
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return ret; |
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out_udplitev6_protocol: |
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inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); |
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goto out; |
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} |
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void udplitev6_exit(void) |
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{ |
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inet6_unregister_protosw(&udplite6_protosw); |
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inet6_del_protocol(&udplitev6_protocol, IPPROTO_UDPLITE); |
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} |
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#ifdef CONFIG_PROC_FS |
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static const struct file_operations udplite6_afinfo_seq_fops = { |
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.owner = THIS_MODULE, |
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.open = udp_seq_open, |
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.read = seq_read, |
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.llseek = seq_lseek, |
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.release = seq_release_net |
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}; |
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static struct udp_seq_afinfo udplite6_seq_afinfo = { |
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.name = "udplite6", |
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.family = AF_INET6, |
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.udp_table = &udplite_table, |
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.seq_fops = &udplite6_afinfo_seq_fops, |
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.seq_ops = { |
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.show = udp6_seq_show, |
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}, |
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}; |
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static int __net_init udplite6_proc_init_net(struct net *net) |
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{ |
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return udp_proc_register(net, &udplite6_seq_afinfo); |
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} |
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static void __net_exit udplite6_proc_exit_net(struct net *net) |
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{ |
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udp_proc_unregister(net, &udplite6_seq_afinfo); |
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} |
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static struct pernet_operations udplite6_net_ops = { |
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.init = udplite6_proc_init_net, |
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.exit = udplite6_proc_exit_net, |
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}; |
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int __init udplite6_proc_init(void) |
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{ |
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return register_pernet_subsys(&udplite6_net_ops); |
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} |
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void udplite6_proc_exit(void) |
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{ |
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unregister_pernet_subsys(&udplite6_net_ops); |
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} |
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#endif
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