I'm using v5.1.1 (soon to upgrade to v5.2.2) and I have a sub-agent
which stores data in a persisent store (/var/net-snmp/my-subagent.conf).
In my subagent, I have:
//----------------------------------------
// Handle persistent storage of per-port link up/down trap enable
// The read callback
for (port = 1; port < numports; ++port) {
char token[128];
sprintf(token, "%s_%d", TRAP_CONFIG_TOKEN, port);
register_config_handler(NULL,
token,
parseTrapEnable,
NULL,
NULL);
}
// The store callback
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_STORE_DATA,
storeTrapEnable,
0);
On startup the values get read from the persistent store and on shutdown
the store is rewritten. However, I want to be able to change the file
while snmpd (and the sub-agent) are running and have the values re-read.
I found code in the agent to re-read configuration when a SIGHUP is
received but changing my-subagent.conf and issuing SIGHUP to snmpd
didn't reread the persistent store. Am I missing something? Is there
another callback I need to register for reconfig? Do I need to send
SIGHUP to my sub-agent?
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