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fc038410b4
__udp_lib_port_inuse() cannot make direct references to inet_sk(sk)->rcv_saddr as that is ipv4 specific state and this code is used by ipv6 too. Use an operations vector to solve this, and this also paves the way for ipv6 support for non-wild saddr hashing in UDP. Signed-off-by: David S. Miller <davem@davemloft.net>
106 lines
2.8 KiB
C
106 lines
2.8 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 **pskb)
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{
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return __udp6_lib_rcv(pskb, 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, &udp_ipv6_ops);
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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 = 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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};
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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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void __init udplitev6_init(void)
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{
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if (inet6_add_protocol(&udplitev6_protocol, IPPROTO_UDPLITE) < 0)
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printk(KERN_ERR "%s: Could not register.\n", __FUNCTION__);
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inet6_register_protosw(&udplite6_protosw);
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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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