/* *  UDPLITE     An implementation of the UDP-Lite protocol (RFC 3828). * *  Version:    $Id: udplite.c,v 1.25 2006/10/19 07:22:36 gerrit Exp $ * *  Authors:    Gerrit Renker       <gerrit@erg.abdn.ac.uk> * *  Changes: *  Fixes: *		This program is free software; you can redistribute it and/or *		modify it under the terms of the GNU General Public License *		as published by the Free Software Foundation; either version *		2 of the License, or (at your option) any later version. */#include "udp_impl.h"DEFINE_SNMP_STAT(struct udp_mib, udplite_statistics)	__read_mostly;struct hlist_head 	udplite_hash[UDP_HTABLE_SIZE];int udplite_get_port(struct sock *sk, unsigned short p,		     int (*c)(const struct sock *, const struct sock *)){	return  __udp_lib_get_port(sk, p, udplite_hash, c);}static int udplite_v4_get_port(struct sock *sk, unsigned short snum){	return udplite_get_port(sk, snum, ipv4_rcv_saddr_equal);}static int udplite_rcv(struct sk_buff *skb){	return __udp4_lib_rcv(skb, udplite_hash, IPPROTO_UDPLITE);}static void udplite_err(struct sk_buff *skb, u32 info){	return __udp4_lib_err(skb, info, udplite_hash);}static	struct net_protocol udplite_protocol = {	.handler	= udplite_rcv,	.err_handler	= udplite_err,	.no_policy	= 1,};DEFINE_PROTO_INUSE(udplite)struct proto 	udplite_prot = {	.name		   = "UDP-Lite",	.owner		   = THIS_MODULE,	.close		   = udp_lib_close,	.connect	   = ip4_datagram_connect,	.disconnect	   = udp_disconnect,	.ioctl		   = udp_ioctl,	.init		   = udplite_sk_init,	.destroy	   = udp_destroy_sock,	.setsockopt	   = udp_setsockopt,	.getsockopt	   = udp_getsockopt,	.sendmsg	   = udp_sendmsg,	.recvmsg	   = udp_recvmsg,	.sendpage	   = udp_sendpage,	.backlog_rcv	   = udp_queue_rcv_skb,	.hash		   = udp_lib_hash,	.unhash		   = udp_lib_unhash,	.get_port	   = udplite_v4_get_port,	.obj_size	   = sizeof(struct udp_sock),#ifdef CONFIG_COMPAT	.compat_setsockopt = compat_udp_setsockopt,	.compat_getsockopt = compat_udp_getsockopt,#endif	REF_PROTO_INUSE(udplite)};static struct inet_protosw udplite4_protosw = {	.type		=  SOCK_DGRAM,	.protocol	=  IPPROTO_UDPLITE,	.prot		=  &udplite_prot,	.ops		=  &inet_dgram_ops,	.capability	= -1,	.no_check	=  0,		/* must checksum (RFC 3828) */	.flags		=  INET_PROTOSW_PERMANENT,};#ifdef CONFIG_PROC_FSstatic struct file_operations udplite4_seq_fops;static struct udp_seq_afinfo udplite4_seq_afinfo = {	.owner		= THIS_MODULE,	.name		= "udplite",	.family		= AF_INET,	.hashtable	= udplite_hash,	.seq_show	= udp4_seq_show,	.seq_fops	= &udplite4_seq_fops,};#endifvoid __init udplite4_register(void){	if (proto_register(&udplite_prot, 1))		goto out_register_err;	if (inet_add_protocol(&udplite_protocol, IPPROTO_UDPLITE) < 0)		goto out_unregister_proto;	inet_register_protosw(&udplite4_protosw);#ifdef CONFIG_PROC_FS	if (udp_proc_register(&udplite4_seq_afinfo)) /* udplite4_proc_init() */		printk(KERN_ERR "%s: Cannot register /proc!\n", __FUNCTION__);#endif	return;out_unregister_proto:	proto_unregister(&udplite_prot);out_register_err:	printk(KERN_CRIT "%s: Cannot add UDP-Lite protocol.\n", __FUNCTION__);}EXPORT_SYMBOL(udplite_hash);EXPORT_SYMBOL(udplite_prot);EXPORT_SYMBOL(udplite_get_port);