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7f4e4868f3
This patchset makes the different protocols to return an error code, so the af_inet6 module can check the initialization was correct or not. The raw6 was taken into account to be consistent with the rest of the protocols, but the registration is at the same place. Because the raw6 has its own init function, the proto and the ops structure can be moved inside the raw6.c file. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
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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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* Version: $Id: udplite.c,v 1.9 2006/10/19 08:28:10 gerrit Exp $
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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 "udp_impl.h"
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DEFINE_SNMP_STAT(struct udp_mib, udplite_stats_in6) __read_mostly;
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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_hash, 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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int type, int code, int offset, __be32 info)
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{
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return __udp6_lib_err(skb, opt, type, code, offset, info, udplite_hash);
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}
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static 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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static int udplite_v6_get_port(struct sock *sk, unsigned short snum)
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{
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return udplite_get_port(sk, snum, ipv6_rcv_saddr_equal);
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}
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DEFINE_PROTO_INUSE(udplitev6)
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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 = udplite_v6_get_port,
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.obj_size = sizeof(struct udp6_sock),
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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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REF_PROTO_INUSE(udplitev6)
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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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.capability = -1,
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.no_check = 0,
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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 __exit 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 struct file_operations udplite6_seq_fops;
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static struct udp_seq_afinfo udplite6_seq_afinfo = {
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.owner = THIS_MODULE,
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.name = "udplite6",
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.family = AF_INET6,
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.hashtable = udplite_hash,
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.seq_show = udp6_seq_show,
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.seq_fops = &udplite6_seq_fops,
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};
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int __init udplite6_proc_init(void)
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{
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return udp_proc_register(&udplite6_seq_afinfo);
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}
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void udplite6_proc_exit(void)
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{
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udp_proc_unregister(&udplite6_seq_afinfo);
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}
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#endif
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