[SCTP] Make init & delayed sack timeouts configurable by user.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 7fc31849312..dc4893474f1 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -47,6 +47,8 @@
 static ctl_handler sctp_sysctl_jiffies_ms;
 static long rto_timer_min = 1;
 static long rto_timer_max = 86400000; /* One day */
+static long sack_timer_min = 1;
+static long sack_timer_max = 500;
 
 static ctl_table sctp_table[] = {
         {
@@ -187,6 +189,17 @@ static ctl_table sctp_table[] = {
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec
         },
+        {
+                .ctl_name       = NET_SCTP_SACK_TIMEOUT,
+                .procname       = "sack_timeout",
+                .data           = &sctp_sack_timeout,
+                .maxlen         = sizeof(long),
+                .mode           = 0644,
+                .proc_handler   = &proc_doulongvec_ms_jiffies_minmax,
+                .strategy       = &sctp_sysctl_jiffies_ms,
+                .extra1         = &sack_timer_min,
+                .extra2         = &sack_timer_max,
+        },
         { .ctl_name = 0 }
 };