db8dac20d5
This reverts commitdb1ed684f6("[IPV6] UDP: Rename IPv6 UDP files."), commit8be8af8fa4("[IPV4] UDP: Move IPv4-specific bits to other file.") and commite898d4db27("[UDP]: Allow users to configure UDP-Lite."). First, udplite is of such small cost, and it is a core protocol just like TCP and normal UDP are. We spent enormous amounts of effort to make udplite share as much code with core UDP as possible. All of that work is less valuable if we're just going to slap a config option on udplite support. It is also causing build failures, as reported on linux-next, showing that the changeset was not tested very well. In fact, this is the second build failure resulting from the udplite change. Finally, the config options provided was a bool, instead of a modular option. Meaning the udplite code does not even get build tested by allmodconfig builds, and furthermore the user is not presented with a reasonable modular build option which is particularly needed by distribution vendors. 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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__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 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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