2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Michal Tesar <[email protected]>

[ Upstream commit 651e92716aaae60fc41b9652f54cb6803896e0da ]

Limit the min/max value passed to the
/proc/sys/net/ipv4/tcp_syn_retries.

Signed-off-by: Michal Tesar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Willy Tarreau <[email protected]>
---
 net/ipv4/sysctl_net_ipv4.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 2dcf04d..910fa54 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -23,6 +23,8 @@
 
 static int zero;
 static int tcp_retr1_max = 255;
+static int tcp_syn_retries_min = 1;
+static int tcp_syn_retries_max = MAX_TCP_SYNCNT;
 static int ip_local_port_range_min[] = { 1, 1 };
 static int ip_local_port_range_max[] = { 65535, 65535 };
 
@@ -237,7 +239,9 @@ static struct ctl_table ipv4_table[] = {
                .data           = &ipv4_config.no_pmtu_disc,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = proc_dointvec
+               .proc_handler   = proc_dointvec_minmax,
+               .extra1         = &tcp_syn_retries_min,
+               .extra2         = &tcp_syn_retries_max
        },
        {
                .ctl_name       = NET_IPV4_NONLOCAL_BIND,
-- 
1.7.12.2.21.g234cd45.dirty



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