On Sat, 9 Jul 2005, Henrik Nordstrom wrote:
There is two approaches, either resurrect the now deleted trap snmp code in the old simplminded snmp library used (and distributed) by Squid, or do it more proper and replace the SNMP agent glue in Squid with a new one using the more up to date net-snmp library API <url:http://net-snmp.sourceforge.net/>, making Squid a SMUX or AgentX sub-agent to an existing system SNMP agent supporting either method.
A quick inspection of the net-snmp agent API indicates it is not immediately suitable to be called from inside Squid. This due to a design heavily centered around select() semantics and fd_set processing.
It may be possible to build glue around, but I have doubts in how the library uses the fd_set:s. Any library having static/local fd_set instances is not useable from Squid (filedescriptor limitation problem).
So for now I think it would be better to simply resurrect/reimplement the TRAP PDU sending code. Since we are only looking at sending traps there is not much danger or maintenance headache.
Regards Henrik
