From: Mark Glines <mark@glines.org>
Date: Sun, 22 Jul 2007 15:51:59 +0000 (+0200)
Subject: [TCP]: Use default 32768-61000 outgoing port range in all cases.
X-Git-Tag: v2.6.16.53-rc1~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b98f003bbc89fc6eb3c8d8ea0094531a7918fe69;p=thirdparty%2Fkernel%2Fstable.git

[TCP]: Use default 32768-61000 outgoing port range in all cases.

This diff changes the default port range used for outgoing connections,
from "use 32768-61000 in most cases, but use N-4999 on small boxes
(where N is a multiple of 1024, depending on just *how* small the box
is)" to just "use 32768-61000 in all cases".

I don't believe there are any drawbacks to this change, and it keeps
outgoing connection ports farther away from the mess of
IANA-registered ports.

Signed-off-by: Mark Glines <mark@glines.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
---

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index ae20281d8deb0..008e77c5a45ad 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -32,10 +32,8 @@ 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 };
 
 int inet_csk_bind_conflict(const struct sock *sk,
 			   const struct inet_bind_bucket *tb)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 5bca5b064d4c1..50cf626130ee7 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2099,13 +2099,10 @@ void __init tcp_init(void)
 			order++)
 		;
 	if (order >= 4) {
-		sysctl_local_port_range[0] = 32768;
-		sysctl_local_port_range[1] = 61000;
 		tcp_death_row.sysctl_max_tw_buckets = 180000;
 		sysctl_tcp_max_orphans = 4096 << (order - 4);
 		sysctl_max_syn_backlog = 1024;
 	} else if (order < 3) {
-		sysctl_local_port_range[0] = 1024 * (3 - order);
 		tcp_death_row.sysctl_max_tw_buckets >>= (3 - order);
 		sysctl_tcp_max_orphans >>= (3 - order);
 		sysctl_max_syn_backlog = 128;