[SCTP]: extend exported data in /proc/net/sctp/assoc

RFC 3873 specifies several MIB objects that can't be obtained by the
current data set exported by /proc/sys/net/sctp/assoc.  This patch
adds the missing pieces of data that allow us to compute all the
objects in the sctpAssocTable object.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index f2ed6473feef..ade0cbd3a52b 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -5312,6 +5312,8 @@ sctp_disposition_t sctp_sf_t2_timer_expire(const struct sctp_endpoint *ep,
         SCTP_DEBUG_PRINTK("Timer T2 expired.\n");
         SCTP_INC_STATS(SCTP_MIB_T2_SHUTDOWN_EXPIREDS);
 
+        ((struct sctp_association *)asoc)->shutdown_retries++;
+
         if (asoc->overall_error_count >= asoc->max_retrans) {
                 sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
                                 SCTP_ERROR(ETIMEDOUT));