1 files changed, 17 insertions, 427 deletions

diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 5954f677381..f1cb60ff931 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -29,13 +29,11 @@
 #include <linux/sysctl.h>
 #endif
 
-#define ASSERT_READ_LOCK(x)
-#define ASSERT_WRITE_LOCK(x)
-
 #include <net/netfilter/nf_conntrack.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
-#include <net/netfilter/nf_conntrack_protocol.h>
 #include <net/netfilter/nf_conntrack_core.h>
+#include <net/netfilter/nf_conntrack_l3proto.h>
+#include <net/netfilter/nf_conntrack_l4proto.h>
+#include <net/netfilter/nf_conntrack_expect.h>
 #include <net/netfilter/nf_conntrack_helper.h>
 
 #if 0
@@ -46,33 +44,15 @@
 
 MODULE_LICENSE("GPL");
 
-extern atomic_t nf_conntrack_count;
-DECLARE_PER_CPU(struct ip_conntrack_stat, nf_conntrack_stat);
-
-static int kill_l3proto(struct nf_conn *i, void *data)
-{
-	return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num == 
-			((struct nf_conntrack_l3proto *)data)->l3proto);
-}
-
-static int kill_proto(struct nf_conn *i, void *data)
-{
-	struct nf_conntrack_protocol *proto;
-	proto = (struct nf_conntrack_protocol *)data;
-	return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum == 
-			proto->proto) &&
-	       (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num ==
-			proto->l3proto);
-}
-
 #ifdef CONFIG_PROC_FS
-static int
+int
 print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
 	    struct nf_conntrack_l3proto *l3proto,
-	    struct nf_conntrack_protocol *proto)
+	    struct nf_conntrack_l4proto *l4proto)
 {
-	return l3proto->print_tuple(s, tuple) || proto->print_tuple(s, tuple);
+	return l3proto->print_tuple(s, tuple) || l4proto->print_tuple(s, tuple);
 }
+EXPORT_SYMBOL_GPL(print_tuple);
 
 #ifdef CONFIG_NF_CT_ACCT
 static unsigned int
@@ -150,9 +130,8 @@ static int ct_seq_show(struct seq_file *s, void *v)
 	const struct nf_conntrack_tuple_hash *hash = v;
 	const struct nf_conn *conntrack = nf_ct_tuplehash_to_ctrack(hash);
 	struct nf_conntrack_l3proto *l3proto;
-	struct nf_conntrack_protocol *proto;
+	struct nf_conntrack_l4proto *l4proto;
 
-	ASSERT_READ_LOCK(&nf_conntrack_lock);
 	NF_CT_ASSERT(conntrack);
 
 	/* we only want to print DIR_ORIGINAL */
@@ -163,16 +142,16 @@ static int ct_seq_show(struct seq_file *s, void *v)
 				       .tuple.src.l3num);
 
 	NF_CT_ASSERT(l3proto);
-	proto = __nf_ct_proto_find(conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
+	l4proto = __nf_ct_l4proto_find(conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
 				   .tuple.src.l3num,
 				   conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
 				   .tuple.dst.protonum);
-	NF_CT_ASSERT(proto);
+	NF_CT_ASSERT(l4proto);
 
 	if (seq_printf(s, "%-8s %u %-8s %u %ld ",
 		       l3proto->name,
 		       conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num,
-		       proto->name,
+		       l4proto->name,
 		       conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
 		       timer_pending(&conntrack->timeout)
 		       ? (long)(conntrack->timeout.expires - jiffies)/HZ : 0) != 0)
@@ -181,11 +160,11 @@ static int ct_seq_show(struct seq_file *s, void *v)
 	if (l3proto->print_conntrack(s, conntrack))
 		return -ENOSPC;
 
-	if (proto->print_conntrack(s, conntrack))
+	if (l4proto->print_conntrack(s, conntrack))
 		return -ENOSPC;
 
 	if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
-			l3proto, proto))
+			l3proto, l4proto))
 		return -ENOSPC;
 
 	if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_ORIGINAL]))
@@ -196,7 +175,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
 			return -ENOSPC;
 
 	if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple,
-			l3proto, proto))
+			l3proto, l4proto))
 		return -ENOSPC;
 
 	if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_REPLY]))
@@ -258,84 +237,6 @@ static struct file_operations ct_file_ops = {
 	.release = seq_release_private,
 };
 
-/* expects */
-static void *exp_seq_start(struct seq_file *s, loff_t *pos)
-{
-	struct list_head *e = &nf_conntrack_expect_list;
-	loff_t i;
-
-	/* strange seq_file api calls stop even if we fail,
-	 * thus we need to grab lock since stop unlocks */
-	read_lock_bh(&nf_conntrack_lock);
-
-	if (list_empty(e))
-		return NULL;
-
-	for (i = 0; i <= *pos; i++) {
-		e = e->next;
-		if (e == &nf_conntrack_expect_list)
-			return NULL;
-	}
-	return e;
-}
-
-static void *exp_seq_next(struct seq_file *s, void *v, loff_t *pos)
-{
-	struct list_head *e = v;
-
-	++*pos;
-	e = e->next;
-
-	if (e == &nf_conntrack_expect_list)
-		return NULL;
-
-	return e;
-}
-
-static void exp_seq_stop(struct seq_file *s, void *v)
-{
-	read_unlock_bh(&nf_conntrack_lock);
-}
-
-static int exp_seq_show(struct seq_file *s, void *v)
-{
-	struct nf_conntrack_expect *expect = v;
-
-	if (expect->timeout.function)
-		seq_printf(s, "%ld ", timer_pending(&expect->timeout)
-			   ? (long)(expect->timeout.expires - jiffies)/HZ : 0);
-	else
-		seq_printf(s, "- ");
-	seq_printf(s, "l3proto = %u proto=%u ",
-		   expect->tuple.src.l3num,
-		   expect->tuple.dst.protonum);
-	print_tuple(s, &expect->tuple,
-		    __nf_ct_l3proto_find(expect->tuple.src.l3num),
-		    __nf_ct_proto_find(expect->tuple.src.l3num,
-				       expect->tuple.dst.protonum));
-	return seq_putc(s, '\n');
-}
-
-static struct seq_operations exp_seq_ops = {
-	.start = exp_seq_start,
-	.next = exp_seq_next,
-	.stop = exp_seq_stop,
-	.show = exp_seq_show
-};
-
-static int exp_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &exp_seq_ops);
-}
-
-static struct file_operations exp_file_ops = {
-	.owner   = THIS_MODULE,
-	.open    = exp_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release
-};
-
 static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
 {
 	int cpu;
@@ -428,34 +329,9 @@ static struct file_operations ct_cpu_seq_fops = {
 /* Sysctl support */
 
 int nf_conntrack_checksum __read_mostly = 1;
+EXPORT_SYMBOL_GPL(nf_conntrack_checksum);
 
 #ifdef CONFIG_SYSCTL
-
-/* From nf_conntrack_core.c */
-extern int nf_conntrack_max;
-extern unsigned int nf_conntrack_htable_size;
-
-/* From nf_conntrack_proto_tcp.c */
-extern unsigned int nf_ct_tcp_timeout_syn_sent;
-extern unsigned int nf_ct_tcp_timeout_syn_recv;
-extern unsigned int nf_ct_tcp_timeout_established;
-extern unsigned int nf_ct_tcp_timeout_fin_wait;
-extern unsigned int nf_ct_tcp_timeout_close_wait;
-extern unsigned int nf_ct_tcp_timeout_last_ack;
-extern unsigned int nf_ct_tcp_timeout_time_wait;
-extern unsigned int nf_ct_tcp_timeout_close;
-extern unsigned int nf_ct_tcp_timeout_max_retrans;
-extern int nf_ct_tcp_loose;
-extern int nf_ct_tcp_be_liberal;
-extern int nf_ct_tcp_max_retrans;
-
-/* From nf_conntrack_proto_udp.c */
-extern unsigned int nf_ct_udp_timeout;
-extern unsigned int nf_ct_udp_timeout_stream;
-
-/* From nf_conntrack_proto_generic.c */
-extern unsigned int nf_ct_generic_timeout;
-
 /* Log invalid packets of a given protocol */
 static int log_invalid_proto_min = 0;
 static int log_invalid_proto_max = 255;
@@ -496,94 +372,6 @@ static ctl_table nf_ct_sysctl_table[] = {
 		.proc_handler	= &proc_dointvec,
 	},
 	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT,
-		.procname	= "nf_conntrack_tcp_timeout_syn_sent",
-		.data		= &nf_ct_tcp_timeout_syn_sent,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV,
-		.procname	= "nf_conntrack_tcp_timeout_syn_recv",
-		.data		= &nf_ct_tcp_timeout_syn_recv,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED,
-		.procname	= "nf_conntrack_tcp_timeout_established",
-		.data		= &nf_ct_tcp_timeout_established,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT,
-		.procname	= "nf_conntrack_tcp_timeout_fin_wait",
-		.data		= &nf_ct_tcp_timeout_fin_wait,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT,
-		.procname	= "nf_conntrack_tcp_timeout_close_wait",
-		.data		= &nf_ct_tcp_timeout_close_wait,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK,
-		.procname	= "nf_conntrack_tcp_timeout_last_ack",
-		.data		= &nf_ct_tcp_timeout_last_ack,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT,
-		.procname	= "nf_conntrack_tcp_timeout_time_wait",
-		.data		= &nf_ct_tcp_timeout_time_wait,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE,
-		.procname	= "nf_conntrack_tcp_timeout_close",
-		.data		= &nf_ct_tcp_timeout_close,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_UDP_TIMEOUT,
-		.procname	= "nf_conntrack_udp_timeout",
-		.data		= &nf_ct_udp_timeout,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM,
-		.procname	= "nf_conntrack_udp_timeout_stream",
-		.data		= &nf_ct_udp_timeout_stream,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_GENERIC_TIMEOUT,
-		.procname	= "nf_conntrack_generic_timeout",
-		.data		= &nf_ct_generic_timeout,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
 		.ctl_name	= NET_NF_CONNTRACK_LOG_INVALID,
 		.procname	= "nf_conntrack_log_invalid",
 		.data		= &nf_ct_log_invalid,
@@ -594,38 +382,6 @@ static ctl_table nf_ct_sysctl_table[] = {
 		.extra1		= &log_invalid_proto_min,
 		.extra2		= &log_invalid_proto_max,
 	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS,
-		.procname	= "nf_conntrack_tcp_timeout_max_retrans",
-		.data		= &nf_ct_tcp_timeout_max_retrans,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec_jiffies,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_LOOSE,
-		.procname	= "nf_conntrack_tcp_loose",
-		.data		= &nf_ct_tcp_loose,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_BE_LIBERAL,
-		.procname       = "nf_conntrack_tcp_be_liberal",
-		.data           = &nf_ct_tcp_be_liberal,
-		.maxlen         = sizeof(unsigned int),
-		.mode           = 0644,
-		.proc_handler   = &proc_dointvec,
-	},
-	{
-		.ctl_name	= NET_NF_CONNTRACK_TCP_MAX_RETRANS,
-		.procname	= "nf_conntrack_tcp_max_retrans",
-		.data		= &nf_ct_tcp_max_retrans,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec,
-	},
 
 	{ .ctl_name = 0 }
 };
@@ -659,109 +415,9 @@ static ctl_table nf_ct_net_table[] = {
 	},
 	{ .ctl_name = 0 }
 };
-EXPORT_SYMBOL(nf_ct_log_invalid);
+EXPORT_SYMBOL_GPL(nf_ct_log_invalid);
 #endif /* CONFIG_SYSCTL */
 
-int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
-{
-	int ret = 0;
-
-	write_lock_bh(&nf_conntrack_lock);
-	if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_generic_l3proto) {
-		ret = -EBUSY;
-		goto out;
-	}
-	nf_ct_l3protos[proto->l3proto] = proto;
-out:
-	write_unlock_bh(&nf_conntrack_lock);
-
-	return ret;
-}
-
-void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto)
-{
-	write_lock_bh(&nf_conntrack_lock);
-	nf_ct_l3protos[proto->l3proto] = &nf_conntrack_generic_l3proto;
-	write_unlock_bh(&nf_conntrack_lock);
-	
-	/* Somebody could be still looking at the proto in bh. */
-	synchronize_net();
-
-	/* Remove all contrack entries for this protocol */
-	nf_ct_iterate_cleanup(kill_l3proto, proto);
-}
-
-/* FIXME: Allow NULL functions and sub in pointers to generic for
-   them. --RR */
-int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto)
-{
-	int ret = 0;
-
-retry:
-	write_lock_bh(&nf_conntrack_lock);
-	if (nf_ct_protos[proto->l3proto]) {
-		if (nf_ct_protos[proto->l3proto][proto->proto]
-				!= &nf_conntrack_generic_protocol) {
-			ret = -EBUSY;
-			goto out_unlock;
-		}
-	} else {
-		/* l3proto may be loaded latter. */
-		struct nf_conntrack_protocol **proto_array;
-		int i;
-
-		write_unlock_bh(&nf_conntrack_lock);
-
-		proto_array = (struct nf_conntrack_protocol **)
-				kmalloc(MAX_NF_CT_PROTO *
-					 sizeof(struct nf_conntrack_protocol *),
-					GFP_KERNEL);
-		if (proto_array == NULL) {
-			ret = -ENOMEM;
-			goto out;
-		}
-		for (i = 0; i < MAX_NF_CT_PROTO; i++)
-			proto_array[i] = &nf_conntrack_generic_protocol;
-
-		write_lock_bh(&nf_conntrack_lock);
-		if (nf_ct_protos[proto->l3proto]) {
-			/* bad timing, but no problem */
-			write_unlock_bh(&nf_conntrack_lock);
-			kfree(proto_array);
-		} else {
-			nf_ct_protos[proto->l3proto] = proto_array;
-			write_unlock_bh(&nf_conntrack_lock);
-		}
-
-		/*
-		 * Just once because array is never freed until unloading
-		 * nf_conntrack.ko
-		 */
-		goto retry;
-	}
-
-	nf_ct_protos[proto->l3proto][proto->proto] = proto;
-
-out_unlock:
-	write_unlock_bh(&nf_conntrack_lock);
-out:
-	return ret;
-}
-
-void nf_conntrack_protocol_unregister(struct nf_conntrack_protocol *proto)
-{
-	write_lock_bh(&nf_conntrack_lock);
-	nf_ct_protos[proto->l3proto][proto->proto]
-		= &nf_conntrack_generic_protocol;
-	write_unlock_bh(&nf_conntrack_lock);
-	
-	/* Somebody could be still looking at the proto in bh. */
-	synchronize_net();
-
-	/* Remove all contrack entries for this protocol */
-	nf_ct_iterate_cleanup(kill_proto, proto);
-}
-
 static int __init nf_conntrack_standalone_init(void)
 {
 #ifdef CONFIG_PROC_FS
@@ -834,70 +490,4 @@ module_exit(nf_conntrack_standalone_fini);
 void need_conntrack(void)
 {
 }
-
-#ifdef CONFIG_NF_CONNTRACK_EVENTS
-EXPORT_SYMBOL_GPL(nf_conntrack_chain);
-EXPORT_SYMBOL_GPL(nf_conntrack_expect_chain);
-EXPORT_SYMBOL_GPL(nf_conntrack_register_notifier);
-EXPORT_SYMBOL_GPL(nf_conntrack_unregister_notifier);
-EXPORT_SYMBOL_GPL(__nf_ct_event_cache_init);
-EXPORT_PER_CPU_SYMBOL_GPL(nf_conntrack_ecache);
-EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events);
-#endif
-EXPORT_SYMBOL(nf_ct_l3proto_try_module_get);
-EXPORT_SYMBOL(nf_ct_l3proto_module_put);
-EXPORT_SYMBOL(nf_conntrack_l3proto_register);
-EXPORT_SYMBOL(nf_conntrack_l3proto_unregister);
-EXPORT_SYMBOL(nf_conntrack_protocol_register);
-EXPORT_SYMBOL(nf_conntrack_protocol_unregister);
-EXPORT_SYMBOL(nf_ct_invert_tuplepr);
-EXPORT_SYMBOL(nf_conntrack_destroyed);
-EXPORT_SYMBOL(need_conntrack);
-EXPORT_SYMBOL(nf_conntrack_helper_register);
-EXPORT_SYMBOL(nf_conntrack_helper_unregister);
-EXPORT_SYMBOL(nf_ct_iterate_cleanup);
-EXPORT_SYMBOL(__nf_ct_refresh_acct);
-EXPORT_SYMBOL(nf_ct_protos);
-EXPORT_SYMBOL(__nf_ct_proto_find);
-EXPORT_SYMBOL(nf_ct_proto_find_get);
-EXPORT_SYMBOL(nf_ct_proto_put);
-EXPORT_SYMBOL(nf_ct_l3proto_find_get);
-EXPORT_SYMBOL(nf_ct_l3proto_put);
-EXPORT_SYMBOL(nf_ct_l3protos);
-EXPORT_SYMBOL_GPL(nf_conntrack_checksum);
-EXPORT_SYMBOL(nf_conntrack_expect_alloc);
-EXPORT_SYMBOL(nf_conntrack_expect_put);
-EXPORT_SYMBOL(nf_conntrack_expect_related);
-EXPORT_SYMBOL(nf_conntrack_unexpect_related);
-EXPORT_SYMBOL(nf_conntrack_tuple_taken);
-EXPORT_SYMBOL(nf_conntrack_htable_size);
-EXPORT_SYMBOL(nf_conntrack_lock);
-EXPORT_SYMBOL(nf_conntrack_hash);
-EXPORT_SYMBOL(nf_conntrack_untracked);
-EXPORT_SYMBOL_GPL(nf_conntrack_find_get);
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-EXPORT_SYMBOL(nf_conntrack_tcp_update);
-#endif
-EXPORT_SYMBOL(__nf_conntrack_confirm);
-EXPORT_SYMBOL(nf_ct_get_tuple);
-EXPORT_SYMBOL(nf_ct_invert_tuple);
-EXPORT_SYMBOL(nf_conntrack_in);
-EXPORT_SYMBOL(__nf_conntrack_attach);
-EXPORT_SYMBOL(nf_conntrack_alloc);
-EXPORT_SYMBOL(nf_conntrack_free);
-EXPORT_SYMBOL(nf_conntrack_flush);
-EXPORT_SYMBOL(nf_ct_remove_expectations);
-EXPORT_SYMBOL(nf_ct_helper_find_get);
-EXPORT_SYMBOL(nf_ct_helper_put);
-EXPORT_SYMBOL(__nf_conntrack_helper_find_byname);
-EXPORT_SYMBOL(__nf_conntrack_find);
-EXPORT_SYMBOL(nf_ct_unlink_expect);
-EXPORT_SYMBOL(nf_conntrack_hash_insert);
-EXPORT_SYMBOL(__nf_conntrack_expect_find);
-EXPORT_SYMBOL(nf_conntrack_expect_find);
-EXPORT_SYMBOL(nf_conntrack_expect_list);
-#if defined(CONFIG_NF_CT_NETLINK) || \
-    defined(CONFIG_NF_CT_NETLINK_MODULE)
-EXPORT_SYMBOL(nf_ct_port_tuple_to_nfattr);
-EXPORT_SYMBOL(nf_ct_port_nfattr_to_tuple);
-#endif
+EXPORT_SYMBOL_GPL(need_conntrack);