From: Mark Glines Date: Thu, 7 Jun 2007 06:01:05 +0000 (-0700) Subject: [PATCH] TCP: Use default 32768-61000 outgoing port range in all cases. X-Git-Tag: v2.6.21.5~2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=02a074766a0a8d1afd26f476b73422c08e34cbc8;p=thirdparty%2Fkernel%2Fstable.git [PATCH] 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 Signed-off-by: David S. Miller Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman --- diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 43fb1600f1f03..fbe7714f21d08 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -31,10 +31,8 @@ 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 824c6b9c6af9d..5055190785b7f 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2445,13 +2445,10 @@ 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;