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author | Michal Tesar <mtesar@redhat.com> | 2013-07-19 14:09:01 +0200 |
---|---|---|
committer | Steven Rostedt <rostedt@goodmis.org> | 2013-09-11 21:20:43 -0400 |
commit | 083d7cc7916c396d7f57c75f8e2acd0c9b800cd3 (patch) | |
tree | a309d4e6faa9f1631acc8dc4e1d854226789d8ba /net | |
parent | 6ac8c9e7a7c29de172c2e016714d14c793e32146 (diff) | |
download | linux-rt-083d7cc7916c396d7f57c75f8e2acd0c9b800cd3.tar.gz |
sysctl net: Keep tcp_syn_retries inside the boundary
[ Upstream commit 651e92716aaae60fc41b9652f54cb6803896e0da ]
Limit the min/max value passed to the
/proc/sys/net/ipv4/tcp_syn_retries.
Signed-off-by: Michal Tesar <mtesar@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'net')
-rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 1b5ce96707a3..335f18df9412 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -35,6 +35,8 @@ static int tcp_adv_win_scale_min = -31; static int tcp_adv_win_scale_max = 31; static int ip_ttl_min = 1; static int ip_ttl_max = 255; +static int tcp_syn_retries_min = 1; +static int tcp_syn_retries_max = MAX_TCP_SYNCNT; static int ip_ping_group_range_min[] = { 0, 0 }; static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX }; @@ -277,7 +279,9 @@ static struct ctl_table ipv4_table[] = { .data = &sysctl_tcp_syn_retries, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec + .proc_handler = proc_dointvec_minmax, + .extra1 = &tcp_syn_retries_min, + .extra2 = &tcp_syn_retries_max }, { .procname = "tcp_synack_retries", |