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authorEric Dumazet <edumazet@google.com>2015-05-27 11:34:37 -0700
committerDavid S. Miller <davem@davemloft.net>2015-05-27 14:35:36 -0400
commited2dfd900992aa7b6b3d0abd8ec9a7e9d2c7f827 (patch)
tree76e6fa096ffb9ab01b52b564c547c70a5803c0e4 /include/net/netns
parente2baad9e4b153c67dddc5ccf987395b842329c84 (diff)
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tcp/dccp: warn user for preferred ip_local_port_range
After commit 07f4c90062f8f ("tcp/dccp: try to not exhaust ip_local_port_range in connect()") it is advised to have an even number of ports described in /proc/sys/net/ipv4/ip_local_port_range This means start/end values should have a different parity. Let's warn sysadmins of this, so that they can update their settings if they want to. Suggested-by: David S. Miller <davem@davemloft.net> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netns')
-rw-r--r--include/net/netns/ipv4.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 6848b8b..c68926b 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -19,6 +19,7 @@ struct sock;
struct local_ports {
seqlock_t lock;
int range[2];
+ bool warned;
};
struct ping_group_range {
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