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List:       net-snmp-bugs
Subject:    [ net-snmp-Bugs-3560411 ] Incorrect engineBoots value in snmpd.conf on SIGHUP
From:       SourceForge.net <noreply () sourceforge ! net>
Date:       2012-08-21 17:10:17
Message-ID: E1T3ry7-0006Rq-2x () sfs-ml-1 ! v29 ! ch3 ! sourceforge ! com
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Bugs item #3560411, was opened at 2012-08-21 10:10
Message generated for change (Tracker Item Submitted) made by bhaskarkhcu
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112694&aid=3560411&group_id=12694

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including the initial issue submission, for this request,
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Category: agent
Group: linux
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: K   Bhaskar (bhaskarkhcu)
Assigned to: Nobody/Anonymous (nobody)
Summary: Incorrect engineBoots value  in snmpd.conf on SIGHUP

Initial Comment:
I've observed a minor issue in the handling of engineBoots when the agent is \
reconfigured( on SIGHUP). The  issue is identified in 5.7.1 version.

This issue is on receiving SIGHUP snmpd is incrementing the enginBoots by 1 locally \
but in the configuration file in persistent folder is not  updated immediately with \
the incremented value. Only when snmpd receives SIGTERM it is updating with the new \
value in to file . But in some expectionaly cases where snmpd could not \
handle/receive  SIGTERM  , update of engineBoots will be missed in to  teh \
configuration file in the  persistent folder.


I  have below  pacth for this issue. Call "  snmp_store(app_name);" after \
update_config() function call which will store  the new engineBoots value in to \
configuration file immediately.


       if (reconfig) {
#if HAVE_SIGHOLD
            sighold(SIGHUP);
#endif
            reconfig = 0;
            snmp_log(LOG_INFO, "Reconfiguring daemon\n");
            /*  Stop and restart logging.  This allows logfiles to be
                rotated etc.  */
            netsnmp_logging_restart();
            snmp_log(LOG_INFO, "NET-SNMP version %s restarted\n",
                     netsnmp_get_version());
            update_config();
            snmp_store(app_name);
            send_easy_trap(SNMP_TRAP_ENTERPRISESPECIFIC, 3);
#if HAVE_SIGHOLD
            sigrelse(SIGHUP);
#endif
        }



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