X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fipv4%2Finet_connection_sock.c;h=de5a41de191a675e69701fd5416bda497da62aaf;hb=30a50cc56679f56d7b866b1c29fd05802606fc5a;hp=96bbe2a0aa1b05e41fcd144e3b11a61b17d854ba;hpb=82103232edc4b4ed48949a195aca93cfa3fe3fa8;p=safe%2Fjmp%2Flinux-2.6

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 96bbe2a..de5a41d 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -31,10 +31,21 @@ EXPORT_SYMBOL(inet_csk_timer_bug_msg);
 
 /*
  * This array holds the first and last local port number.
- * For high-usage systems, use sysctl to change this to
- * 32768-61000
  */
-int sysctl_local_port_range[2] = { 1024, 4999 };
+int sysctl_local_port_range[2] = { 32768, 61000 };
+DEFINE_SEQLOCK(sysctl_port_range_lock);
+
+void inet_get_local_port_range(int *low, int *high)
+{
+	unsigned seq;
+	do {
+		seq = read_seqbegin(&sysctl_port_range_lock);
+
+		*low = sysctl_local_port_range[0];
+		*high = sysctl_local_port_range[1];
+	} while (read_seqretry(&sysctl_port_range_lock, seq));
+}
+EXPORT_SYMBOL(inet_get_local_port_range);
 
 int inet_csk_bind_conflict(const struct sock *sk,
 			   const struct inet_bind_bucket *tb)
@@ -76,19 +87,21 @@ int inet_csk_get_port(struct inet_hashinfo *hashinfo,
 	struct hlist_node *node;
 	struct inet_bind_bucket *tb;
 	int ret;
+	struct net *net = sk->sk_net;
 
 	local_bh_disable();
 	if (!snum) {
-		int low = sysctl_local_port_range[0];
-		int high = sysctl_local_port_range[1];
-		int remaining = (high - low) + 1;
-		int rover = net_random() % (high - low) + low;
+		int remaining, rover, low, high;
+
+		inet_get_local_port_range(&low, &high);
+		remaining = (high - low) + 1;
+		rover = net_random() % remaining + low;
 
 		do {
 			head = &hashinfo->bhash[inet_bhashfn(rover, hashinfo->bhash_size)];
 			spin_lock(&head->lock);
 			inet_bind_bucket_for_each(tb, node, &head->chain)
-				if (tb->port == rover)
+				if (tb->ib_net == net && tb->port == rover)
 					goto next;
 			break;
 		next:
@@ -115,7 +128,7 @@ int inet_csk_get_port(struct inet_hashinfo *hashinfo,
 		head = &hashinfo->bhash[inet_bhashfn(snum, hashinfo->bhash_size)];
 		spin_lock(&head->lock);
 		inet_bind_bucket_for_each(tb, node, &head->chain)
-			if (tb->port == snum)
+			if (tb->ib_net == net && tb->port == snum)
 				goto tb_found;
 	}
 	tb = NULL;
@@ -135,7 +148,8 @@ tb_found:
 	}
 tb_not_found:
 	ret = 1;
-	if (!tb && (tb = inet_bind_bucket_create(hashinfo->bind_bucket_cachep, head, snum)) == NULL)
+	if (!tb && (tb = inet_bind_bucket_create(hashinfo->bind_bucket_cachep,
+					net, head, snum)) == NULL)
 		goto fail_unlock;
 	if (hlist_empty(&tb->owners)) {
 		if (sk->sk_reuse && sk->sk_state != TCP_LISTEN)
@@ -149,7 +163,7 @@ success:
 	if (!inet_csk(sk)->icsk_bind_hash)
 		inet_bind_hash(sk, tb, snum);
 	BUG_TRAP(inet_csk(sk)->icsk_bind_hash == tb);
- 	ret = 0;
+	ret = 0;
 
 fail_unlock:
 	spin_unlock(&head->lock);
@@ -255,7 +269,7 @@ EXPORT_SYMBOL(inet_csk_accept);
 
 /*
  * Using different timers for retransmit, delayed acks and probes
- * We may wish use just one timer maintaining a list of expire jiffies 
+ * We may wish use just one timer maintaining a list of expire jiffies
  * to optimize.
  */
 void inet_csk_init_xmit_timers(struct sock *sk,
@@ -265,18 +279,11 @@ void inet_csk_init_xmit_timers(struct sock *sk,
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 
-	init_timer(&icsk->icsk_retransmit_timer);
-	init_timer(&icsk->icsk_delack_timer);
-	init_timer(&sk->sk_timer);
-
-	icsk->icsk_retransmit_timer.function = retransmit_handler;
-	icsk->icsk_delack_timer.function     = delack_handler;
-	sk->sk_timer.function		     = keepalive_handler;
-
-	icsk->icsk_retransmit_timer.data = 
-		icsk->icsk_delack_timer.data =
-			sk->sk_timer.data  = (unsigned long)sk;
-
+	setup_timer(&icsk->icsk_retransmit_timer, retransmit_handler,
+			(unsigned long)sk);
+	setup_timer(&icsk->icsk_delack_timer, delack_handler,
+			(unsigned long)sk);
+	setup_timer(&sk->sk_timer, keepalive_handler, (unsigned long)sk);
 	icsk->icsk_pending = icsk->icsk_ack.pending = 0;
 }
 
@@ -328,7 +335,7 @@ struct dst_entry* inet_csk_route_req(struct sock *sk,
 					 .dport = ireq->rmt_port } } };
 
 	security_req_classify_flow(req, &fl);
-	if (ip_route_output_flow(&rt, &fl, sk, 0)) {
+	if (ip_route_output_flow(&init_net, &rt, &fl, sk, 0)) {
 		IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES);
 		return NULL;
 	}
@@ -343,7 +350,7 @@ struct dst_entry* inet_csk_route_req(struct sock *sk,
 EXPORT_SYMBOL_GPL(inet_csk_route_req);
 
 static inline u32 inet_synq_hash(const __be32 raddr, const __be16 rport,
-				 const u32 rnd, const u16 synq_hsize)
+				 const u32 rnd, const u32 synq_hsize)
 {
 	return jhash_2words((__force u32)raddr, (__force u32)rport, rnd) & (synq_hsize - 1);
 }