Just like T4-RTO, T3-RXT timeout events, add HEARTBEAT timeout
counter for debug. It is useful because all these timeout events
cause association error counter to increase.
Signed-off-by: Shan Wei <shanwei@xxxxxxxxxxxxxx>
---
include/net/sctp/sctp.h | 1 +
net/sctp/proc.c | 1 +
net/sctp/sm_statefuns.c | 2 ++
3 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 65946bc..f7fb5de 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -263,6 +263,7 @@ enum {
SCTP_MIB_IN_PKT_BACKLOG,
SCTP_MIB_IN_PKT_DISCARDS,
SCTP_MIB_IN_DATA_CHUNK_DISCARDS,
+ SCTP_MIB_HEARTBEAT_EXPIREDS,
__SCTP_MIB_MAX
};
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 5584d1a..53263ca 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -74,6 +74,7 @@ static const struct snmp_mib sctp_snmp_list[] = {
SNMP_MIB_ITEM("SctpInPktDiscards", SCTP_MIB_IN_PKT_DISCARDS),
SNMP_MIB_ITEM("SctpInDataChunkDiscards", SCTP_MIB_IN_DATA_CHUNK_DISCARDS),
SNMP_MIB_ITEM("SctpT1Retransmits", SCTP_MIB_T1_RETRANSMITS),
+ SNMP_MIB_ITEM("SctpHeartbeatExpireds", SCTP_MIB_HEARTBEAT_EXPIREDS),
SNMP_MIB_SENTINEL
};
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 24b2cd5..8d3e223 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -974,6 +974,8 @@ sctp_disposition_t sctp_sf_sendbeat_8_3(const struct sctp_endpoint *ep,
{
struct sctp_transport *transport = (struct sctp_transport *) arg;
+ SCTP_INC_STATS(SCTP_MIB_HEARTBEAT_EXPIREDS);
+
if (asoc->overall_error_count >= asoc->max_retrans) {
sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
SCTP_ERROR(ETIMEDOUT));
--
1.7.0
--
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