[deliverable/linux.git] / net / netfilter / nf_conntrack_proto_udplite.c

/* (C) 1999-2001 Paul `Rusty' Russell
 * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
 * (C) 2007 Patrick McHardy <kaber@trash.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/types.h>
#include <linux/timer.h>
#include <linux/module.h>
#include <linux/udp.h>
#include <linux/seq_file.h>
#include <linux/skbuff.h>
#include <linux/ipv6.h>
#include <net/ip6_checksum.h>
#include <net/checksum.h>

#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_ecache.h>
#include <net/netfilter/nf_log.h>

enum udplite_conntrack {
	UDPLITE_CT_UNREPLIED,
	UDPLITE_CT_REPLIED,
	UDPLITE_CT_MAX
};

static unsigned int udplite_timeouts[UDPLITE_CT_MAX] = {
	[UDPLITE_CT_UNREPLIED]	= 30*HZ,
	[UDPLITE_CT_REPLIED]	= 180*HZ,
};

static bool udplite_pkt_to_tuple(const struct sk_buff *skb,
				 unsigned int dataoff,
				 struct nf_conntrack_tuple *tuple)
{
	const struct udphdr *hp;
	struct udphdr _hdr;

	hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
	if (hp == NULL)
		return false;

	tuple->src.u.udp.port = hp->source;
	tuple->dst.u.udp.port = hp->dest;
	return true;
}

static bool udplite_invert_tuple(struct nf_conntrack_tuple *tuple,
				 const struct nf_conntrack_tuple *orig)
{
	tuple->src.u.udp.port = orig->dst.u.udp.port;
	tuple->dst.u.udp.port = orig->src.u.udp.port;
	return true;
}

/* Print out the per-protocol part of the tuple. */
static int udplite_print_tuple(struct seq_file *s,
			       const struct nf_conntrack_tuple *tuple)
{
	return seq_printf(s, "sport=%hu dport=%hu ",
			  ntohs(tuple->src.u.udp.port),
			  ntohs(tuple->dst.u.udp.port));
}

static unsigned int *udplite_get_timeouts(struct net *net)
{
	return udplite_timeouts;
}

/* Returns verdict for packet, and may modify conntracktype */
static int udplite_packet(struct nf_conn *ct,
			  const struct sk_buff *skb,
			  unsigned int dataoff,
			  enum ip_conntrack_info ctinfo,
			  u_int8_t pf,
			  unsigned int hooknum,
			  unsigned int *timeouts)
{
	/* If we've seen traffic both ways, this is some kind of UDP
	   stream.  Extend timeout. */
	if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
		nf_ct_refresh_acct(ct, ctinfo, skb,
				   timeouts[UDPLITE_CT_REPLIED]);
		/* Also, more likely to be important, and not a probe */
		if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
			nf_conntrack_event_cache(IPCT_ASSURED, ct);
	} else {
		nf_ct_refresh_acct(ct, ctinfo, skb,
				   timeouts[UDPLITE_CT_UNREPLIED]);
	}
	return NF_ACCEPT;
}

/* Called when a new connection for this protocol found. */
static bool udplite_new(struct nf_conn *ct, const struct sk_buff *skb,
			unsigned int dataoff, unsigned int *timeouts)
{
	return true;
}

static int udplite_error(struct net *net, struct nf_conn *tmpl,
			 struct sk_buff *skb,
			 unsigned int dataoff,
			 enum ip_conntrack_info *ctinfo,
			 u_int8_t pf,
			 unsigned int hooknum)
{
	unsigned int udplen = skb->len - dataoff;
	const struct udphdr *hdr;
	struct udphdr _hdr;
	unsigned int cscov;

	/* Header is too small? */
	hdr = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
	if (hdr == NULL) {
		if (LOG_INVALID(net, IPPROTO_UDPLITE))
			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
				      "nf_ct_udplite: short packet ");
		return -NF_ACCEPT;
	}

	cscov = ntohs(hdr->len);
	if (cscov == 0)
		cscov = udplen;
	else if (cscov < sizeof(*hdr) || cscov > udplen) {
		if (LOG_INVALID(net, IPPROTO_UDPLITE))
			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
				"nf_ct_udplite: invalid checksum coverage ");
		return -NF_ACCEPT;
	}

	/* UDPLITE mandates checksums */
	if (!hdr->check) {
		if (LOG_INVALID(net, IPPROTO_UDPLITE))
			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
				      "nf_ct_udplite: checksum missing ");
		return -NF_ACCEPT;
	}

	/* Checksum invalid? Ignore. */
	if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING &&
	    nf_checksum_partial(skb, hooknum, dataoff, cscov, IPPROTO_UDP,
	    			pf)) {
		if (LOG_INVALID(net, IPPROTO_UDPLITE))
			nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
				      "nf_ct_udplite: bad UDPLite checksum ");
		return -NF_ACCEPT;
	}

	return NF_ACCEPT;
}

#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)

#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/nfnetlink_cttimeout.h>

static int udplite_timeout_nlattr_to_obj(struct nlattr *tb[], void *data)
{
	unsigned int *timeouts = data;

	/* set default timeouts for UDPlite. */
	timeouts[UDPLITE_CT_UNREPLIED] = udplite_timeouts[UDPLITE_CT_UNREPLIED];
	timeouts[UDPLITE_CT_REPLIED] = udplite_timeouts[UDPLITE_CT_REPLIED];

	if (tb[CTA_TIMEOUT_UDPLITE_UNREPLIED]) {
		timeouts[UDPLITE_CT_UNREPLIED] =
		  ntohl(nla_get_be32(tb[CTA_TIMEOUT_UDPLITE_UNREPLIED])) * HZ;
	}
	if (tb[CTA_TIMEOUT_UDPLITE_REPLIED]) {
		timeouts[UDPLITE_CT_REPLIED] =
		  ntohl(nla_get_be32(tb[CTA_TIMEOUT_UDPLITE_REPLIED])) * HZ;
	}
	return 0;
}

static int
udplite_timeout_obj_to_nlattr(struct sk_buff *skb, const void *data)
{
	const unsigned int *timeouts = data;

	if (nla_put_be32(skb, CTA_TIMEOUT_UDPLITE_UNREPLIED,
			 htonl(timeouts[UDPLITE_CT_UNREPLIED] / HZ)) ||
	    nla_put_be32(skb, CTA_TIMEOUT_UDPLITE_REPLIED,
			 htonl(timeouts[UDPLITE_CT_REPLIED] / HZ)))
		goto nla_put_failure;
	return 0;

nla_put_failure:
	return -ENOSPC;
}

static const struct nla_policy
udplite_timeout_nla_policy[CTA_TIMEOUT_UDPLITE_MAX+1] = {
	[CTA_TIMEOUT_UDPLITE_UNREPLIED]	= { .type = NLA_U32 },
	[CTA_TIMEOUT_UDPLITE_REPLIED]	= { .type = NLA_U32 },
};
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */

#ifdef CONFIG_SYSCTL
static unsigned int udplite_sysctl_table_users;
static struct ctl_table_header *udplite_sysctl_header;
static struct ctl_table udplite_sysctl_table[] = {
	{
		.procname	= "nf_conntrack_udplite_timeout",
		.data		= &udplite_timeouts[UDPLITE_CT_UNREPLIED],
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_jiffies,
	},
	{
		.procname	= "nf_conntrack_udplite_timeout_stream",
		.data		= &udplite_timeouts[UDPLITE_CT_REPLIED],
		.maxlen		= sizeof(unsigned int),
		.mode		= 0644,
		.proc_handler	= proc_dointvec_jiffies,
	},
	{ }
};
#endif /* CONFIG_SYSCTL */

static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly =
{
	.l3proto		= PF_INET,
	.l4proto		= IPPROTO_UDPLITE,
	.name			= "udplite",
	.pkt_to_tuple		= udplite_pkt_to_tuple,
	.invert_tuple		= udplite_invert_tuple,
	.print_tuple		= udplite_print_tuple,
	.packet			= udplite_packet,
	.get_timeouts		= udplite_get_timeouts,
	.new			= udplite_new,
	.error			= udplite_error,
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
	.tuple_to_nlattr	= nf_ct_port_tuple_to_nlattr,
	.nlattr_tuple_size	= nf_ct_port_nlattr_tuple_size,
	.nlattr_to_tuple	= nf_ct_port_nlattr_to_tuple,
	.nla_policy		= nf_ct_port_nla_policy,
#endif
#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
	.ctnl_timeout		= {
		.nlattr_to_obj	= udplite_timeout_nlattr_to_obj,
		.obj_to_nlattr	= udplite_timeout_obj_to_nlattr,
		.nlattr_max	= CTA_TIMEOUT_UDPLITE_MAX,
		.obj_size	= sizeof(unsigned int) *
					CTA_TIMEOUT_UDPLITE_MAX,
		.nla_policy	= udplite_timeout_nla_policy,
	},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
#ifdef CONFIG_SYSCTL
	.ctl_table_users	= &udplite_sysctl_table_users,
	.ctl_table_header	= &udplite_sysctl_header,
	.ctl_table		= udplite_sysctl_table,
#endif
};

static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly =
{
	.l3proto		= PF_INET6,
	.l4proto		= IPPROTO_UDPLITE,
	.name			= "udplite",
	.pkt_to_tuple		= udplite_pkt_to_tuple,
	.invert_tuple		= udplite_invert_tuple,
	.print_tuple		= udplite_print_tuple,
	.packet			= udplite_packet,
	.get_timeouts		= udplite_get_timeouts,
	.new			= udplite_new,
	.error			= udplite_error,
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
	.tuple_to_nlattr	= nf_ct_port_tuple_to_nlattr,
	.nlattr_tuple_size	= nf_ct_port_nlattr_tuple_size,
	.nlattr_to_tuple	= nf_ct_port_nlattr_to_tuple,
	.nla_policy		= nf_ct_port_nla_policy,
#endif
#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
	.ctnl_timeout		= {
		.nlattr_to_obj	= udplite_timeout_nlattr_to_obj,
		.obj_to_nlattr	= udplite_timeout_obj_to_nlattr,
		.nlattr_max	= CTA_TIMEOUT_UDPLITE_MAX,
		.obj_size	= sizeof(unsigned int) *
					CTA_TIMEOUT_UDPLITE_MAX,
		.nla_policy	= udplite_timeout_nla_policy,
	},
#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
#ifdef CONFIG_SYSCTL
	.ctl_table_users	= &udplite_sysctl_table_users,
	.ctl_table_header	= &udplite_sysctl_header,
	.ctl_table		= udplite_sysctl_table,
#endif
};

static int __init nf_conntrack_proto_udplite_init(void)
{
	int err;

	err = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_udplite4);
	if (err < 0)
		goto err1;
	err = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_udplite6);
	if (err < 0)
		goto err2;
	return 0;
err2:
	nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udplite4);
err1:
	return err;
}

static void __exit nf_conntrack_proto_udplite_exit(void)
{
	nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udplite6);
	nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udplite4);
}

module_init(nf_conntrack_proto_udplite_init);
module_exit(nf_conntrack_proto_udplite_exit);

MODULE_LICENSE("GPL");
Commit	Line	Data
59eecdfb PM	1	/* (C) 1999-2001 Paul `Rusty' Russell
	2	* (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
	3	* (C) 2007 Patrick McHardy <kaber@trash.net>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*/
	9
	10	#include <linux/types.h>
	11	#include <linux/timer.h>
	12	#include <linux/module.h>
59eecdfb PM	13	#include <linux/udp.h>
	14	#include <linux/seq_file.h>
	15	#include <linux/skbuff.h>
	16	#include <linux/ipv6.h>
	17	#include <net/ip6_checksum.h>
	18	#include <net/checksum.h>
	19
	20	#include <linux/netfilter.h>
	21	#include <linux/netfilter_ipv4.h>
	22	#include <linux/netfilter_ipv6.h>
	23	#include <net/netfilter/nf_conntrack_l4proto.h>
	24	#include <net/netfilter/nf_conntrack_ecache.h>
f01ffbd6	25	#include <net/netfilter/nf_log.h>
59eecdfb	26
5a41db94 PNA	27	enum udplite_conntrack {
	28	UDPLITE_CT_UNREPLIED,
	29	UDPLITE_CT_REPLIED,
	30	UDPLITE_CT_MAX
	31	};
	32
	33	static unsigned int udplite_timeouts[UDPLITE_CT_MAX] = {
	34	[UDPLITE_CT_UNREPLIED] = 30*HZ,
	35	[UDPLITE_CT_REPLIED] = 180*HZ,
	36	};
59eecdfb	37
09f263cd JE	38	static bool udplite_pkt_to_tuple(const struct sk_buff *skb,
	39	unsigned int dataoff,
	40	struct nf_conntrack_tuple *tuple)
59eecdfb	41	{
da3f13c9 JE	42	const struct udphdr *hp;
da3f13c9 JE	43	struct udphdr _hdr;
59eecdfb PM	44
	45	hp = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
	46	if (hp == NULL)
09f263cd	47	return false;
59eecdfb PM	48
	49	tuple->src.u.udp.port = hp->source;
	50	tuple->dst.u.udp.port = hp->dest;
09f263cd	51	return true;
59eecdfb PM	52	}
59eecdfb PM	53
09f263cd JE	54	static bool udplite_invert_tuple(struct nf_conntrack_tuple *tuple,
09f263cd JE	55	const struct nf_conntrack_tuple *orig)
59eecdfb PM	56	{
	57	tuple->src.u.udp.port = orig->dst.u.udp.port;
	58	tuple->dst.u.udp.port = orig->src.u.udp.port;
09f263cd	59	return true;
59eecdfb PM	60	}
	61
	62	/* Print out the per-protocol part of the tuple. */
	63	static int udplite_print_tuple(struct seq_file *s,
	64	const struct nf_conntrack_tuple *tuple)
	65	{
	66	return seq_printf(s, "sport=%hu dport=%hu ",
	67	ntohs(tuple->src.u.udp.port),
	68	ntohs(tuple->dst.u.udp.port));
	69	}
	70
2c8503f5 PNA	71	static unsigned int udplite_get_timeouts(struct net net)
	72	{
	73	return udplite_timeouts;
	74	}
	75
59eecdfb	76	/* Returns verdict for packet, and may modify conntracktype */
c88130bc	77	static int udplite_packet(struct nf_conn *ct,
59eecdfb PM	78	const struct sk_buff *skb,
	79	unsigned int dataoff,
	80	enum ip_conntrack_info ctinfo,
76108cea	81	u_int8_t pf,
2c8503f5 PNA	82	unsigned int hooknum,
2c8503f5 PNA	83	unsigned int *timeouts)
59eecdfb PM	84	{
	85	/* If we've seen traffic both ways, this is some kind of UDP
	86	stream. Extend timeout. */
c88130bc PM	87	if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
c88130bc PM	88	nf_ct_refresh_acct(ct, ctinfo, skb,
2c8503f5	89	timeouts[UDPLITE_CT_REPLIED]);
59eecdfb	90	/* Also, more likely to be important, and not a probe */
c88130bc	91	if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
858b3133	92	nf_conntrack_event_cache(IPCT_ASSURED, ct);
5a41db94 PNA	93	} else {
5a41db94 PNA	94	nf_ct_refresh_acct(ct, ctinfo, skb,
2c8503f5	95	timeouts[UDPLITE_CT_UNREPLIED]);
5a41db94	96	}
59eecdfb PM	97	return NF_ACCEPT;
	98	}
	99
	100	/* Called when a new connection for this protocol found. */
09f263cd	101	static bool udplite_new(struct nf_conn ct, const struct sk_buff skb,
2c8503f5	102	unsigned int dataoff, unsigned int *timeouts)
59eecdfb	103	{
09f263cd	104	return true;
59eecdfb PM	105	}
59eecdfb PM	106
8fea97ec	107	static int udplite_error(struct net net, struct nf_conn tmpl,
74c51a14 AD	108	struct sk_buff *skb,
74c51a14 AD	109	unsigned int dataoff,
59eecdfb	110	enum ip_conntrack_info *ctinfo,
76108cea	111	u_int8_t pf,
59eecdfb PM	112	unsigned int hooknum)
	113	{
	114	unsigned int udplen = skb->len - dataoff;
da3f13c9 JE	115	const struct udphdr *hdr;
da3f13c9 JE	116	struct udphdr _hdr;
59eecdfb PM	117	unsigned int cscov;
	118
	119	/* Header is too small? */
	120	hdr = skb_header_pointer(skb, dataoff, sizeof(_hdr), &_hdr);
	121	if (hdr == NULL) {
c2a2c7e0	122	if (LOG_INVALID(net, IPPROTO_UDPLITE))
59eecdfb PM	123	nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
	124	"nf_ct_udplite: short packet ");
	125	return -NF_ACCEPT;
	126	}
	127
	128	cscov = ntohs(hdr->len);
	129	if (cscov == 0)
	130	cscov = udplen;
	131	else if (cscov < sizeof(*hdr) \|\| cscov > udplen) {
c2a2c7e0	132	if (LOG_INVALID(net, IPPROTO_UDPLITE))
59eecdfb PM	133	nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
	134	"nf_ct_udplite: invalid checksum coverage ");
	135	return -NF_ACCEPT;
	136	}
	137
	138	/* UDPLITE mandates checksums */
	139	if (!hdr->check) {
c2a2c7e0	140	if (LOG_INVALID(net, IPPROTO_UDPLITE))
59eecdfb PM	141	nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
	142	"nf_ct_udplite: checksum missing ");
	143	return -NF_ACCEPT;
	144	}
	145
	146	/* Checksum invalid? Ignore. */
c04d0552	147	if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING &&
d63a6507 PM	148	nf_checksum_partial(skb, hooknum, dataoff, cscov, IPPROTO_UDP,
d63a6507 PM	149	pf)) {
c2a2c7e0	150	if (LOG_INVALID(net, IPPROTO_UDPLITE))
d63a6507 PM	151	nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
	152	"nf_ct_udplite: bad UDPLite checksum ");
	153	return -NF_ACCEPT;
59eecdfb PM	154	}
	155
	156	return NF_ACCEPT;
	157	}
	158
50978462 PNA	159	#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
	160
	161	#include <linux/netfilter/nfnetlink.h>
	162	#include <linux/netfilter/nfnetlink_cttimeout.h>
	163
	164	static int udplite_timeout_nlattr_to_obj(struct nlattr tb[], void data)
	165	{
	166	unsigned int *timeouts = data;
	167
	168	/* set default timeouts for UDPlite. */
	169	timeouts[UDPLITE_CT_UNREPLIED] = udplite_timeouts[UDPLITE_CT_UNREPLIED];
	170	timeouts[UDPLITE_CT_REPLIED] = udplite_timeouts[UDPLITE_CT_REPLIED];
	171
	172	if (tb[CTA_TIMEOUT_UDPLITE_UNREPLIED]) {
	173	timeouts[UDPLITE_CT_UNREPLIED] =
	174	ntohl(nla_get_be32(tb[CTA_TIMEOUT_UDPLITE_UNREPLIED])) * HZ;
	175	}
	176	if (tb[CTA_TIMEOUT_UDPLITE_REPLIED]) {
	177	timeouts[UDPLITE_CT_REPLIED] =
	178	ntohl(nla_get_be32(tb[CTA_TIMEOUT_UDPLITE_REPLIED])) * HZ;
	179	}
	180	return 0;
	181	}
	182
	183	static int
	184	udplite_timeout_obj_to_nlattr(struct sk_buff skb, const void data)
	185	{
	186	const unsigned int *timeouts = data;
	187
3c60a17b DM	188	if (nla_put_be32(skb, CTA_TIMEOUT_UDPLITE_UNREPLIED,
	189	htonl(timeouts[UDPLITE_CT_UNREPLIED] / HZ)) \|\|
	190	nla_put_be32(skb, CTA_TIMEOUT_UDPLITE_REPLIED,
	191	htonl(timeouts[UDPLITE_CT_REPLIED] / HZ)))
	192	goto nla_put_failure;
50978462 PNA	193	return 0;
	194
	195	nla_put_failure:
	196	return -ENOSPC;
	197	}
	198
	199	static const struct nla_policy
	200	udplite_timeout_nla_policy[CTA_TIMEOUT_UDPLITE_MAX+1] = {
	201	[CTA_TIMEOUT_UDPLITE_UNREPLIED] = { .type = NLA_U32 },
	202	[CTA_TIMEOUT_UDPLITE_REPLIED] = { .type = NLA_U32 },
	203	};
	204	#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
	205
59eecdfb PM	206	#ifdef CONFIG_SYSCTL
	207	static unsigned int udplite_sysctl_table_users;
	208	static struct ctl_table_header *udplite_sysctl_header;
	209	static struct ctl_table udplite_sysctl_table[] = {
	210	{
59eecdfb	211	.procname = "nf_conntrack_udplite_timeout",
5a41db94	212	.data = &udplite_timeouts[UDPLITE_CT_UNREPLIED],
59eecdfb PM	213	.maxlen = sizeof(unsigned int),
59eecdfb PM	214	.mode = 0644,
6d9f239a	215	.proc_handler = proc_dointvec_jiffies,
59eecdfb PM	216	},
59eecdfb PM	217	{
59eecdfb	218	.procname = "nf_conntrack_udplite_timeout_stream",
5a41db94	219	.data = &udplite_timeouts[UDPLITE_CT_REPLIED],
59eecdfb PM	220	.maxlen = sizeof(unsigned int),
59eecdfb PM	221	.mode = 0644,
6d9f239a	222	.proc_handler = proc_dointvec_jiffies,
59eecdfb	223	},
f8572d8f	224	{ }
59eecdfb PM	225	};
	226	#endif /* CONFIG_SYSCTL */
	227
	228	static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly =
	229	{
	230	.l3proto = PF_INET,
	231	.l4proto = IPPROTO_UDPLITE,
	232	.name = "udplite",
	233	.pkt_to_tuple = udplite_pkt_to_tuple,
	234	.invert_tuple = udplite_invert_tuple,
	235	.print_tuple = udplite_print_tuple,
59eecdfb	236	.packet = udplite_packet,
2c8503f5	237	.get_timeouts = udplite_get_timeouts,
59eecdfb PM	238	.new = udplite_new,
59eecdfb PM	239	.error = udplite_error,
c0cd1156	240	#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
fdf70832	241	.tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
a400c30e	242	.nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
fdf70832	243	.nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
f73e924c	244	.nla_policy = nf_ct_port_nla_policy,
59eecdfb	245	#endif
50978462 PNA	246	#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
	247	.ctnl_timeout = {
	248	.nlattr_to_obj = udplite_timeout_nlattr_to_obj,
	249	.obj_to_nlattr = udplite_timeout_obj_to_nlattr,
	250	.nlattr_max = CTA_TIMEOUT_UDPLITE_MAX,
	251	.obj_size = sizeof(unsigned int) *
	252	CTA_TIMEOUT_UDPLITE_MAX,
	253	.nla_policy = udplite_timeout_nla_policy,
	254	},
	255	#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
59eecdfb PM	256	#ifdef CONFIG_SYSCTL
	257	.ctl_table_users = &udplite_sysctl_table_users,
	258	.ctl_table_header = &udplite_sysctl_header,
	259	.ctl_table = udplite_sysctl_table,
	260	#endif
	261	};
	262
	263	static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly =
	264	{
	265	.l3proto = PF_INET6,
	266	.l4proto = IPPROTO_UDPLITE,
	267	.name = "udplite",
	268	.pkt_to_tuple = udplite_pkt_to_tuple,
	269	.invert_tuple = udplite_invert_tuple,
	270	.print_tuple = udplite_print_tuple,
59eecdfb	271	.packet = udplite_packet,
2c8503f5	272	.get_timeouts = udplite_get_timeouts,
59eecdfb PM	273	.new = udplite_new,
59eecdfb PM	274	.error = udplite_error,
c0cd1156	275	#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
fdf70832	276	.tuple_to_nlattr = nf_ct_port_tuple_to_nlattr,
5ff48294	277	.nlattr_tuple_size = nf_ct_port_nlattr_tuple_size,
fdf70832	278	.nlattr_to_tuple = nf_ct_port_nlattr_to_tuple,
f73e924c	279	.nla_policy = nf_ct_port_nla_policy,
59eecdfb	280	#endif
50978462 PNA	281	#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
	282	.ctnl_timeout = {
	283	.nlattr_to_obj = udplite_timeout_nlattr_to_obj,
	284	.obj_to_nlattr = udplite_timeout_obj_to_nlattr,
	285	.nlattr_max = CTA_TIMEOUT_UDPLITE_MAX,
	286	.obj_size = sizeof(unsigned int) *
	287	CTA_TIMEOUT_UDPLITE_MAX,
	288	.nla_policy = udplite_timeout_nla_policy,
	289	},
	290	#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
59eecdfb PM	291	#ifdef CONFIG_SYSCTL
	292	.ctl_table_users = &udplite_sysctl_table_users,
	293	.ctl_table_header = &udplite_sysctl_header,
	294	.ctl_table = udplite_sysctl_table,
	295	#endif
	296	};
	297
	298	static int __init nf_conntrack_proto_udplite_init(void)
	299	{
	300	int err;
	301
2c352f44	302	err = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_udplite4);
59eecdfb PM	303	if (err < 0)
59eecdfb PM	304	goto err1;
2c352f44	305	err = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_udplite6);
59eecdfb PM	306	if (err < 0)
	307	goto err2;
	308	return 0;
	309	err2:
2c352f44	310	nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udplite4);
59eecdfb PM	311	err1:
	312	return err;
	313	}
	314
	315	static void __exit nf_conntrack_proto_udplite_exit(void)
	316	{
2c352f44 G	317	nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udplite6);
2c352f44 G	318	nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_udplite4);
59eecdfb PM	319	}
	320
	321	module_init(nf_conntrack_proto_udplite_init);
	322	module_exit(nf_conntrack_proto_udplite_exit);
	323
	324	MODULE_LICENSE("GPL");