Merge branch 'master' of git://1984.lsi.us.es/net-next

7 files changed, 86 insertions, 529 deletions

diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 74dfc9e5211..fcc543cd987 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -123,15 +123,6 @@ config IP_NF_TARGET_REJECT
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_TARGET_LOG
-	tristate "LOG target support"
-	default m if NETFILTER_ADVANCED=n
-	help
-	  This option adds a `LOG' target, which allows you to create rules in
-	  any iptables table which records the packet header to the syslog.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_TARGET_ULOG
 	tristate "ULOG target support"
 	default m if NETFILTER_ADVANCED=n
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 213a462b739..240b68469a7 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -54,7 +54,6 @@ obj-$(CONFIG_IP_NF_MATCH_RPFILTER) += ipt_rpfilter.o
 # targets
 obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o
 obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o
-obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o
 obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
 obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
 obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
deleted file mode 100644
index d76d6c9ed94..00000000000
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ /dev/null
@@ -1,516 +0,0 @@
-/*
- * This is a module which is used for logging packets.
- */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
- *
- * 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.
- */
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/ip.h>
-#include <net/icmp.h>
-#include <net/udp.h>
-#include <net/tcp.h>
-#include <net/route.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter/x_tables.h>
-#include <linux/netfilter_ipv4/ipt_LOG.h>
-#include <net/netfilter/nf_log.h>
-#include <net/netfilter/xt_log.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
-MODULE_DESCRIPTION("Xtables: IPv4 packet logging to syslog");
-
-/* One level of recursion won't kill us */
-static void dump_packet(struct sbuff *m,
-			const struct nf_loginfo *info,
-			const struct sk_buff *skb,
-			unsigned int iphoff)
-{
-	struct iphdr _iph;
-	const struct iphdr *ih;
-	unsigned int logflags;
-
-	if (info->type == NF_LOG_TYPE_LOG)
-		logflags = info->u.log.logflags;
-	else
-		logflags = NF_LOG_MASK;
-
-	ih = skb_header_pointer(skb, iphoff, sizeof(_iph), &_iph);
-	if (ih == NULL) {
-		sb_add(m, "TRUNCATED");
-		return;
-	}
-
-	/* Important fields:
-	 * TOS, len, DF/MF, fragment offset, TTL, src, dst, options. */
-	/* Max length: 40 "SRC=255.255.255.255 DST=255.255.255.255 " */
-	sb_add(m, "SRC=%pI4 DST=%pI4 ",
-	       &ih->saddr, &ih->daddr);
-
-	/* Max length: 46 "LEN=65535 TOS=0xFF PREC=0xFF TTL=255 ID=65535 " */
-	sb_add(m, "LEN=%u TOS=0x%02X PREC=0x%02X TTL=%u ID=%u ",
-	       ntohs(ih->tot_len), ih->tos & IPTOS_TOS_MASK,
-	       ih->tos & IPTOS_PREC_MASK, ih->ttl, ntohs(ih->id));
-
-	/* Max length: 6 "CE DF MF " */
-	if (ntohs(ih->frag_off) & IP_CE)
-		sb_add(m, "CE ");
-	if (ntohs(ih->frag_off) & IP_DF)
-		sb_add(m, "DF ");
-	if (ntohs(ih->frag_off) & IP_MF)
-		sb_add(m, "MF ");
-
-	/* Max length: 11 "FRAG:65535 " */
-	if (ntohs(ih->frag_off) & IP_OFFSET)
-		sb_add(m, "FRAG:%u ", ntohs(ih->frag_off) & IP_OFFSET);
-
-	if ((logflags & IPT_LOG_IPOPT) &&
-	    ih->ihl * 4 > sizeof(struct iphdr)) {
-		const unsigned char *op;
-		unsigned char _opt[4 * 15 - sizeof(struct iphdr)];
-		unsigned int i, optsize;
-
-		optsize = ih->ihl * 4 - sizeof(struct iphdr);
-		op = skb_header_pointer(skb, iphoff+sizeof(_iph),
-					optsize, _opt);
-		if (op == NULL) {
-			sb_add(m, "TRUNCATED");
-			return;
-		}
-
-		/* Max length: 127 "OPT (" 15*4*2chars ") " */
-		sb_add(m, "OPT (");
-		for (i = 0; i < optsize; i++)
-			sb_add(m, "%02X", op[i]);
-		sb_add(m, ") ");
-	}
-
-	switch (ih->protocol) {
-	case IPPROTO_TCP: {
-		struct tcphdr _tcph;
-		const struct tcphdr *th;
-
-		/* Max length: 10 "PROTO=TCP " */
-		sb_add(m, "PROTO=TCP ");
-
-		if (ntohs(ih->frag_off) & IP_OFFSET)
-			break;
-
-		/* Max length: 25 "INCOMPLETE [65535 bytes] " */
-		th = skb_header_pointer(skb, iphoff + ih->ihl * 4,
-					sizeof(_tcph), &_tcph);
-		if (th == NULL) {
-			sb_add(m, "INCOMPLETE [%u bytes] ",
-			       skb->len - iphoff - ih->ihl*4);
-			break;
-		}
-
-		/* Max length: 20 "SPT=65535 DPT=65535 " */
-		sb_add(m, "SPT=%u DPT=%u ",
-		       ntohs(th->source), ntohs(th->dest));
-		/* Max length: 30 "SEQ=4294967295 ACK=4294967295 " */
-		if (logflags & IPT_LOG_TCPSEQ)
-			sb_add(m, "SEQ=%u ACK=%u ",
-			       ntohl(th->seq), ntohl(th->ack_seq));
-		/* Max length: 13 "WINDOW=65535 " */
-		sb_add(m, "WINDOW=%u ", ntohs(th->window));
-		/* Max length: 9 "RES=0x3F " */
-		sb_add(m, "RES=0x%02x ", (u8)(ntohl(tcp_flag_word(th) & TCP_RESERVED_BITS) >> 22));
-		/* Max length: 32 "CWR ECE URG ACK PSH RST SYN FIN " */
-		if (th->cwr)
-			sb_add(m, "CWR ");
-		if (th->ece)
-			sb_add(m, "ECE ");
-		if (th->urg)
-			sb_add(m, "URG ");
-		if (th->ack)
-			sb_add(m, "ACK ");
-		if (th->psh)
-			sb_add(m, "PSH ");
-		if (th->rst)
-			sb_add(m, "RST ");
-		if (th->syn)
-			sb_add(m, "SYN ");
-		if (th->fin)
-			sb_add(m, "FIN ");
-		/* Max length: 11 "URGP=65535 " */
-		sb_add(m, "URGP=%u ", ntohs(th->urg_ptr));
-
-		if ((logflags & IPT_LOG_TCPOPT) &&
-		    th->doff * 4 > sizeof(struct tcphdr)) {
-			unsigned char _opt[4 * 15 - sizeof(struct tcphdr)];
-			const unsigned char *op;
-			unsigned int i, optsize;
-
-			optsize = th->doff * 4 - sizeof(struct tcphdr);
-			op = skb_header_pointer(skb,
-						iphoff+ih->ihl*4+sizeof(_tcph),
-						optsize, _opt);
-			if (op == NULL) {
-				sb_add(m, "TRUNCATED");
-				return;
-			}
-
-			/* Max length: 127 "OPT (" 15*4*2chars ") " */
-			sb_add(m, "OPT (");
-			for (i = 0; i < optsize; i++)
-				sb_add(m, "%02X", op[i]);
-			sb_add(m, ") ");
-		}
-		break;
-	}
-	case IPPROTO_UDP:
-	case IPPROTO_UDPLITE: {
-		struct udphdr _udph;
-		const struct udphdr *uh;
-
-		if (ih->protocol == IPPROTO_UDP)
-			/* Max length: 10 "PROTO=UDP "     */
-			sb_add(m, "PROTO=UDP " );
-		else	/* Max length: 14 "PROTO=UDPLITE " */
-			sb_add(m, "PROTO=UDPLITE ");
-
-		if (ntohs(ih->frag_off) & IP_OFFSET)
-			break;
-
-		/* Max length: 25 "INCOMPLETE [65535 bytes] " */
-		uh = skb_header_pointer(skb, iphoff+ih->ihl*4,
-					sizeof(_udph), &_udph);
-		if (uh == NULL) {
-			sb_add(m, "INCOMPLETE [%u bytes] ",
-			       skb->len - iphoff - ih->ihl*4);
-			break;
-		}
-
-		/* Max length: 20 "SPT=65535 DPT=65535 " */
-		sb_add(m, "SPT=%u DPT=%u LEN=%u ",
-		       ntohs(uh->source), ntohs(uh->dest),
-		       ntohs(uh->len));
-		break;
-	}
-	case IPPROTO_ICMP: {
-		struct icmphdr _icmph;
-		const struct icmphdr *ich;
-		static const size_t required_len[NR_ICMP_TYPES+1]
-			= { [ICMP_ECHOREPLY] = 4,
-			    [ICMP_DEST_UNREACH]
-			    = 8 + sizeof(struct iphdr),
-			    [ICMP_SOURCE_QUENCH]
-			    = 8 + sizeof(struct iphdr),
-			    [ICMP_REDIRECT]
-			    = 8 + sizeof(struct iphdr),
-			    [ICMP_ECHO] = 4,
-			    [ICMP_TIME_EXCEEDED]
-			    = 8 + sizeof(struct iphdr),
-			    [ICMP_PARAMETERPROB]
-			    = 8 + sizeof(struct iphdr),
-			    [ICMP_TIMESTAMP] = 20,
-			    [ICMP_TIMESTAMPREPLY] = 20,
-			    [ICMP_ADDRESS] = 12,
-			    [ICMP_ADDRESSREPLY] = 12 };
-
-		/* Max length: 11 "PROTO=ICMP " */
-		sb_add(m, "PROTO=ICMP ");
-
-		if (ntohs(ih->frag_off) & IP_OFFSET)
-			break;
-
-		/* Max length: 25 "INCOMPLETE [65535 bytes] " */
-		ich = skb_header_pointer(skb, iphoff + ih->ihl * 4,
-					 sizeof(_icmph), &_icmph);
-		if (ich == NULL) {
-			sb_add(m, "INCOMPLETE [%u bytes] ",
-			       skb->len - iphoff - ih->ihl*4);
-			break;
-		}
-
-		/* Max length: 18 "TYPE=255 CODE=255 " */
-		sb_add(m, "TYPE=%u CODE=%u ", ich->type, ich->code);
-
-		/* Max length: 25 "INCOMPLETE [65535 bytes] " */
-		if (ich->type <= NR_ICMP_TYPES &&
-		    required_len[ich->type] &&
-		    skb->len-iphoff-ih->ihl*4 < required_len[ich->type]) {
-			sb_add(m, "INCOMPLETE [%u bytes] ",
-			       skb->len - iphoff - ih->ihl*4);
-			break;
-		}
-
-		switch (ich->type) {
-		case ICMP_ECHOREPLY:
-		case ICMP_ECHO:
-			/* Max length: 19 "ID=65535 SEQ=65535 " */
-			sb_add(m, "ID=%u SEQ=%u ",
-			       ntohs(ich->un.echo.id),
-			       ntohs(ich->un.echo.sequence));
-			break;
-
-		case ICMP_PARAMETERPROB:
-			/* Max length: 14 "PARAMETER=255 " */
-			sb_add(m, "PARAMETER=%u ",
-			       ntohl(ich->un.gateway) >> 24);
-			break;
-		case ICMP_REDIRECT:
-			/* Max length: 24 "GATEWAY=255.255.255.255 " */
-			sb_add(m, "GATEWAY=%pI4 ", &ich->un.gateway);
-			/* Fall through */
-		case ICMP_DEST_UNREACH:
-		case ICMP_SOURCE_QUENCH:
-		case ICMP_TIME_EXCEEDED:
-			/* Max length: 3+maxlen */
-			if (!iphoff) { /* Only recurse once. */
-				sb_add(m, "[");
-				dump_packet(m, info, skb,
-					    iphoff + ih->ihl*4+sizeof(_icmph));
-				sb_add(m, "] ");
-			}
-
-			/* Max length: 10 "MTU=65535 " */
-			if (ich->type == ICMP_DEST_UNREACH &&
-			    ich->code == ICMP_FRAG_NEEDED)
-				sb_add(m, "MTU=%u ", ntohs(ich->un.frag.mtu));
-		}
-		break;
-	}
-	/* Max Length */
-	case IPPROTO_AH: {
-		struct ip_auth_hdr _ahdr;
-		const struct ip_auth_hdr *ah;
-
-		if (ntohs(ih->frag_off) & IP_OFFSET)
-			break;
-
-		/* Max length: 9 "PROTO=AH " */
-		sb_add(m, "PROTO=AH ");
-
-		/* Max length: 25 "INCOMPLETE [65535 bytes] " */
-		ah = skb_header_pointer(skb, iphoff+ih->ihl*4,
-					sizeof(_ahdr), &_ahdr);
-		if (ah == NULL) {
-			sb_add(m, "INCOMPLETE [%u bytes] ",
-			       skb->len - iphoff - ih->ihl*4);
-			break;
-		}
-
-		/* Length: 15 "SPI=0xF1234567 " */
-		sb_add(m, "SPI=0x%x ", ntohl(ah->spi));
-		break;
-	}
-	case IPPROTO_ESP: {
-		struct ip_esp_hdr _esph;
-		const struct ip_esp_hdr *eh;
-
-		/* Max length: 10 "PROTO=ESP " */
-		sb_add(m, "PROTO=ESP ");
-
-		if (ntohs(ih->frag_off) & IP_OFFSET)
-			break;
-
-		/* Max length: 25 "INCOMPLETE [65535 bytes] " */
-		eh = skb_header_pointer(skb, iphoff+ih->ihl*4,
-					sizeof(_esph), &_esph);
-		if (eh == NULL) {
-			sb_add(m, "INCOMPLETE [%u bytes] ",
-			       skb->len - iphoff - ih->ihl*4);
-			break;
-		}
-
-		/* Length: 15 "SPI=0xF1234567 " */
-		sb_add(m, "SPI=0x%x ", ntohl(eh->spi));
-		break;
-	}
-	/* Max length: 10 "PROTO 255 " */
-	default:
-		sb_add(m, "PROTO=%u ", ih->protocol);
-	}
-
-	/* Max length: 15 "UID=4294967295 " */
-	if ((logflags & IPT_LOG_UID) && !iphoff && skb->sk) {
-		read_lock_bh(&skb->sk->sk_callback_lock);
-		if (skb->sk->sk_socket && skb->sk->sk_socket->file)
-			sb_add(m, "UID=%u GID=%u ",
-				skb->sk->sk_socket->file->f_cred->fsuid,
-				skb->sk->sk_socket->file->f_cred->fsgid);
-		read_unlock_bh(&skb->sk->sk_callback_lock);
-	}
-
-	/* Max length: 16 "MARK=0xFFFFFFFF " */
-	if (!iphoff && skb->mark)
-		sb_add(m, "MARK=0x%x ", skb->mark);
-
-	/* Proto    Max log string length */
-	/* IP:      40+46+6+11+127 = 230 */
-	/* TCP:     10+max(25,20+30+13+9+32+11+127) = 252 */
-	/* UDP:     10+max(25,20) = 35 */
-	/* UDPLITE: 14+max(25,20) = 39 */
-	/* ICMP:    11+max(25, 18+25+max(19,14,24+3+n+10,3+n+10)) = 91+n */
-	/* ESP:     10+max(25)+15 = 50 */
-	/* AH:      9+max(25)+15 = 49 */
-	/* unknown: 10 */
-
-	/* (ICMP allows recursion one level deep) */
-	/* maxlen =  IP + ICMP +  IP + max(TCP,UDP,ICMP,unknown) */
-	/* maxlen = 230+   91  + 230 + 252 = 803 */
-}
-
-static void dump_mac_header(struct sbuff *m,
-			    const struct nf_loginfo *info,
-			    const struct sk_buff *skb)
-{
-	struct net_device *dev = skb->dev;
-	unsigned int logflags = 0;
-
-	if (info->type == NF_LOG_TYPE_LOG)
-		logflags = info->u.log.logflags;
-
-	if (!(logflags & IPT_LOG_MACDECODE))
-		goto fallback;
-
-	switch (dev->type) {
-	case ARPHRD_ETHER:
-		sb_add(m, "MACSRC=%pM MACDST=%pM MACPROTO=%04x ",
-		       eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest,
-		       ntohs(eth_hdr(skb)->h_proto));
-		return;
-	default:
-		break;
-	}
-
-fallback:
-	sb_add(m, "MAC=");
-	if (dev->hard_header_len &&
-	    skb->mac_header != skb->network_header) {
-		const unsigned char *p = skb_mac_header(skb);
-		unsigned int i;
-
-		sb_add(m, "%02x", *p++);
-		for (i = 1; i < dev->hard_header_len; i++, p++)
-			sb_add(m, ":%02x", *p);
-	}
-	sb_add(m, " ");
-}
-
-static struct nf_loginfo default_loginfo = {
-	.type	= NF_LOG_TYPE_LOG,
-	.u = {
-		.log = {
-			.level    = 5,
-			.logflags = NF_LOG_MASK,
-		},
-	},
-};
-
-static void
-ipt_log_packet(u_int8_t pf,
-	       unsigned int hooknum,
-	       const struct sk_buff *skb,
-	       const struct net_device *in,
-	       const struct net_device *out,
-	       const struct nf_loginfo *loginfo,
-	       const char *prefix)
-{
-	struct sbuff *m = sb_open();
-
-	if (!loginfo)
-		loginfo = &default_loginfo;
-
-	sb_add(m, "<%d>%sIN=%s OUT=%s ", loginfo->u.log.level,
-	       prefix,
-	       in ? in->name : "",
-	       out ? out->name : "");
-#ifdef CONFIG_BRIDGE_NETFILTER
-	if (skb->nf_bridge) {
-		const struct net_device *physindev;
-		const struct net_device *physoutdev;
-
-		physindev = skb->nf_bridge->physindev;
-		if (physindev && in != physindev)
-			sb_add(m, "PHYSIN=%s ", physindev->name);
-		physoutdev = skb->nf_bridge->physoutdev;
-		if (physoutdev && out != physoutdev)
-			sb_add(m, "PHYSOUT=%s ", physoutdev->name);
-	}
-#endif
-
-	if (in != NULL)
-		dump_mac_header(m, loginfo, skb);
-
-	dump_packet(m, loginfo, skb, 0);
-
-	sb_close(m);
-}
-
-static unsigned int
-log_tg(struct sk_buff *skb, const struct xt_action_param *par)
-{
-	const struct ipt_log_info *loginfo = par->targinfo;
-	struct nf_loginfo li;
-
-	li.type = NF_LOG_TYPE_LOG;
-	li.u.log.level = loginfo->level;
-	li.u.log.logflags = loginfo->logflags;
-
-	ipt_log_packet(NFPROTO_IPV4, par->hooknum, skb, par->in, par->out, &li,
-		       loginfo->prefix);
-	return XT_CONTINUE;
-}
-
-static int log_tg_check(const struct xt_tgchk_param *par)
-{
-	const struct ipt_log_info *loginfo = par->targinfo;
-
-	if (loginfo->level >= 8) {
-		pr_debug("level %u >= 8\n", loginfo->level);
-		return -EINVAL;
-	}
-	if (loginfo->prefix[sizeof(loginfo->prefix)-1] != '\0') {
-		pr_debug("prefix is not null-terminated\n");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static struct xt_target log_tg_reg __read_mostly = {
-	.name		= "LOG",
-	.family		= NFPROTO_IPV4,
-	.target		= log_tg,
-	.targetsize	= sizeof(struct ipt_log_info),
-	.checkentry	= log_tg_check,
-	.me		= THIS_MODULE,
-};
-
-static struct nf_logger ipt_log_logger __read_mostly = {
-	.name		= "ipt_LOG",
-	.logfn		= &ipt_log_packet,
-	.me		= THIS_MODULE,
-};
-
-static int __init log_tg_init(void)
-{
-	int ret;
-
-	ret = xt_register_target(&log_tg_reg);
-	if (ret < 0)
-		return ret;
-	nf_log_register(NFPROTO_IPV4, &ipt_log_logger);
-	return 0;
-}
-
-static void __exit log_tg_exit(void)
-{
-	nf_log_unregister(&ipt_log_logger);
-	xt_unregister_target(&log_tg_reg);
-}
-
-module_init(log_tg_init);
-module_exit(log_tg_exit);
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index ab5b27a2916..7cbe9cb261c 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -75,25 +75,31 @@ static int icmp_print_tuple(struct seq_file *s,
 			  ntohs(tuple->src.u.icmp.id));
 }
 
+static unsigned int *icmp_get_timeouts(struct net *net)
+{
+	return &nf_ct_icmp_timeout;
+}
+
 /* Returns verdict for packet, or -1 for invalid. */
 static int icmp_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 hooknum,
+		       unsigned int *timeout)
 {
 	/* Do not immediately delete the connection after the first
 	   successful reply to avoid excessive conntrackd traffic
 	   and also to handle correctly ICMP echo reply duplicates. */
-	nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmp_timeout);
+	nf_ct_refresh_acct(ct, ctinfo, skb, *timeout);
 
 	return NF_ACCEPT;
 }
 
 /* Called when a new connection for this protocol found. */
 static bool icmp_new(struct nf_conn *ct, const struct sk_buff *skb,
-		     unsigned int dataoff)
+		     unsigned int dataoff, unsigned int *timeouts)
 {
 	static const u_int8_t valid_new[] = {
 		[ICMP_ECHO] = 1,
@@ -263,6 +269,44 @@ static int icmp_nlattr_tuple_size(void)
 }
 #endif
 
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
+
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nfnetlink_cttimeout.h>
+
+static int icmp_timeout_nlattr_to_obj(struct nlattr *tb[], void *data)
+{
+	unsigned int *timeout = data;
+
+	if (tb[CTA_TIMEOUT_ICMP_TIMEOUT]) {
+		*timeout =
+			ntohl(nla_get_be32(tb[CTA_TIMEOUT_ICMP_TIMEOUT])) * HZ;
+	} else {
+		/* Set default ICMP timeout. */
+		*timeout = nf_ct_icmp_timeout;
+	}
+	return 0;
+}
+
+static int
+icmp_timeout_obj_to_nlattr(struct sk_buff *skb, const void *data)
+{
+	const unsigned int *timeout = data;
+
+	NLA_PUT_BE32(skb, CTA_TIMEOUT_ICMP_TIMEOUT, htonl(*timeout / HZ));
+
+	return 0;
+
+nla_put_failure:
+	return -ENOSPC;
+}
+
+static const struct nla_policy
+icmp_timeout_nla_policy[CTA_TIMEOUT_ICMP_MAX+1] = {
+	[CTA_TIMEOUT_ICMP_TIMEOUT]	= { .type = NLA_U32 },
+};
+#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
+
 #ifdef CONFIG_SYSCTL
 static struct ctl_table_header *icmp_sysctl_header;
 static struct ctl_table icmp_sysctl_table[] = {
@@ -298,6 +342,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
 	.invert_tuple		= icmp_invert_tuple,
 	.print_tuple		= icmp_print_tuple,
 	.packet			= icmp_packet,
+	.get_timeouts		= icmp_get_timeouts,
 	.new			= icmp_new,
 	.error			= icmp_error,
 	.destroy		= NULL,
@@ -308,6 +353,15 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
 	.nlattr_to_tuple	= icmp_nlattr_to_tuple,
 	.nla_policy		= icmp_nla_policy,
 #endif
+#if IS_ENABLED(CONFIG_NF_CT_NETLINK_TIMEOUT)
+	.ctnl_timeout		= {
+		.nlattr_to_obj	= icmp_timeout_nlattr_to_obj,
+		.obj_to_nlattr	= icmp_timeout_obj_to_nlattr,
+		.nlattr_max	= CTA_TIMEOUT_ICMP_MAX,
+		.obj_size	= sizeof(unsigned int),
+		.nla_policy	= icmp_timeout_nla_policy,
+	},
+#endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */
 #ifdef CONFIG_SYSCTL
 	.ctl_table_header	= &icmp_sysctl_header,
 	.ctl_table		= icmp_sysctl_table,
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index a708933dc23..abb52adf5ac 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -686,6 +686,11 @@ static struct pernet_operations nf_nat_net_ops = {
 	.exit = nf_nat_net_exit,
 };
 
+static struct nf_ct_helper_expectfn follow_master_nat = {
+	.name		= "nat-follow-master",
+	.expectfn	= nf_nat_follow_master,
+};
+
 static int __init nf_nat_init(void)
 {
 	size_t i;
@@ -717,6 +722,8 @@ static int __init nf_nat_init(void)
 
 	l3proto = nf_ct_l3proto_find_get((u_int16_t)AF_INET);
 
+	nf_ct_helper_expectfn_register(&follow_master_nat);
+
 	BUG_ON(nf_nat_seq_adjust_hook != NULL);
 	RCU_INIT_POINTER(nf_nat_seq_adjust_hook, nf_nat_seq_adjust);
 	BUG_ON(nfnetlink_parse_nat_setup_hook != NULL);
@@ -736,6 +743,7 @@ static void __exit nf_nat_cleanup(void)
 	unregister_pernet_subsys(&nf_nat_net_ops);
 	nf_ct_l3proto_put(l3proto);
 	nf_ct_extend_unregister(&nat_extend);
+	nf_ct_helper_expectfn_unregister(&follow_master_nat);
 	RCU_INIT_POINTER(nf_nat_seq_adjust_hook, NULL);
 	RCU_INIT_POINTER(nfnetlink_parse_nat_setup_hook, NULL);
 	RCU_INIT_POINTER(nf_ct_nat_offset, NULL);
diff --git a/net/ipv4/netfilter/nf_nat_h323.c b/net/ipv4/netfilter/nf_nat_h323.c
index dc1dd912baf..82536701e3a 100644
--- a/net/ipv4/netfilter/nf_nat_h323.c
+++ b/net/ipv4/netfilter/nf_nat_h323.c
@@ -568,6 +568,16 @@ static int nat_callforwarding(struct sk_buff *skb, struct nf_conn *ct,
 	return 0;
 }
 
+static struct nf_ct_helper_expectfn q931_nat = {
+	.name		= "Q.931",
+	.expectfn	= ip_nat_q931_expect,
+};
+
+static struct nf_ct_helper_expectfn callforwarding_nat = {
+	.name		= "callforwarding",
+	.expectfn	= ip_nat_callforwarding_expect,
+};
+
 /****************************************************************************/
 static int __init init(void)
 {
@@ -590,6 +600,8 @@ static int __init init(void)
 	RCU_INIT_POINTER(nat_h245_hook, nat_h245);
 	RCU_INIT_POINTER(nat_callforwarding_hook, nat_callforwarding);
 	RCU_INIT_POINTER(nat_q931_hook, nat_q931);
+	nf_ct_helper_expectfn_register(&q931_nat);
+	nf_ct_helper_expectfn_register(&callforwarding_nat);
 	return 0;
 }
 
@@ -605,6 +617,8 @@ static void __exit fini(void)
 	RCU_INIT_POINTER(nat_h245_hook, NULL);
 	RCU_INIT_POINTER(nat_callforwarding_hook, NULL);
 	RCU_INIT_POINTER(nat_q931_hook, NULL);
+	nf_ct_helper_expectfn_unregister(&q931_nat);
+	nf_ct_helper_expectfn_unregister(&callforwarding_nat);
 	synchronize_rcu();
 }
 
diff --git a/net/ipv4/netfilter/nf_nat_sip.c b/net/ipv4/netfilter/nf_nat_sip.c
index d0319f96269..57932c43960 100644
--- a/net/ipv4/netfilter/nf_nat_sip.c
+++ b/net/ipv4/netfilter/nf_nat_sip.c
@@ -526,6 +526,11 @@ err1:
 	return NF_DROP;
 }
 
+static struct nf_ct_helper_expectfn sip_nat = {
+        .name           = "sip",
+        .expectfn       = ip_nat_sip_expected,
+};
+
 static void __exit nf_nat_sip_fini(void)
 {
 	RCU_INIT_POINTER(nf_nat_sip_hook, NULL);
@@ -535,6 +540,7 @@ static void __exit nf_nat_sip_fini(void)
 	RCU_INIT_POINTER(nf_nat_sdp_port_hook, NULL);
 	RCU_INIT_POINTER(nf_nat_sdp_session_hook, NULL);
 	RCU_INIT_POINTER(nf_nat_sdp_media_hook, NULL);
+	nf_ct_helper_expectfn_unregister(&sip_nat);
 	synchronize_rcu();
 }
 
@@ -554,6 +560,7 @@ static int __init nf_nat_sip_init(void)
 	RCU_INIT_POINTER(nf_nat_sdp_port_hook, ip_nat_sdp_port);
 	RCU_INIT_POINTER(nf_nat_sdp_session_hook, ip_nat_sdp_session);
 	RCU_INIT_POINTER(nf_nat_sdp_media_hook, ip_nat_sdp_media);
+	nf_ct_helper_expectfn_register(&sip_nat);
 	return 0;
 }