>>>>> On Tue, 18 Oct 2005 13:06:23 -0400, Robert Story <[EMAIL PROTECTED]> said:
Robert> On Tue, 18 Oct 2005 15:28:17 +0100 Dave wrote:
DS> I'd suggest that the more important thing here is avoiding an
DS> agent crash. We can live with a minor memory leak in the short
DS> term. (We've done so plenty of times before!)
Robert> I agree... That's 4/4 so far, so go for it..
FYI, final patch to be checked in:
(and I did verify that other code using async doesn't free the
response pdu either. How inconsistent we are.)
Index: agent_trap.c
===================================================================
RCS file: /cvsroot/net-snmp/net-snmp/agent/agent_trap.c,v
retrieving revision 5.24
diff -u -p -r5.24 agent_trap.c
--- agent_trap.c 30 Aug 2005 00:08:44 -0000 5.24
+++ agent_trap.c 19 Oct 2005 05:00:17 -0000
@@ -800,6 +800,45 @@ send_enterprise_trap_vars(int trap,
return;
}
+/**
+ * Captures responses or the lack there of from INFORMs that were sent
+ * 1) a response is received from an INFORM
+ * 2) one isn't received and the retries/timeouts have failed
+*/
+int
+handle_inform_response(int op, netsnmp_session * session,
+ int reqid, netsnmp_pdu *pdu,
+ void *magic)
+{
+ /* XXX: possibly stats update */
+ switch (op) {
+
+ case NETSNMP_CALLBACK_OP_RECEIVED_MESSAGE:
+ snmp_increment_statistic(STAT_SNMPINPKTS);
+ DEBUGMSGTL(("trap", "received the inform response for reqid=%d\n",
+ reqid));
+ break;
+
+ case NETSNMP_CALLBACK_OP_TIMED_OUT:
+ DEBUGMSGTL(("trap",
+ "received a timeout sending an inform for reqid=%d\n",
+ reqid));
+ break;
+
+ case NETSNMP_CALLBACK_OP_SEND_FAILED:
+ DEBUGMSGTL(("trap",
+ "failed to send an inform for reqid=%d\n",
+ reqid));
+ break;
+
+ default:
+ DEBUGMSGTL(("trap", "received op=%d for reqid=%d when trying to send
an inform\n", op, reqid));
+ }
+
+ return 1;
+}
+
+
/*
* send_trap_to_sess: sends a trap to a session but assumes that the
* pdu is constructed correctly for the session type.
@@ -808,7 +847,6 @@ void
send_trap_to_sess(netsnmp_session * sess, netsnmp_pdu *template_pdu)
{
netsnmp_pdu *pdu;
- netsnmp_pdu *response;
int result;
if (!sess || !template_pdu)
@@ -831,10 +869,13 @@ send_trap_to_sess(netsnmp_session * sess
|| template_pdu->command == AGENTX_MSG_NOTIFY
#endif
) {
- result = snmp_synch_response(sess, pdu, &response);
- result = !result; /* XXX - different return code :-( */
- } else
+ result =
+ snmp_async_send(sess, pdu, &handle_inform_response, NULL);
+
+ } else {
result = snmp_send(sess, pdu);
+ }
+
if (result == 0) {
snmp_sess_perror("snmpd: send_trap", sess);
/* snmp_free_pdu(pdu); */
--
Wes Hardaker
Sparta, Inc.
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