On Sat, Nov 06, 2021 at 09:24:47AM +0100, Martijn van Duren wrote: > On Fri, 2021-11-05 at 15:59 +0000, Stuart Henderson wrote: > > On 2021-11-05, Joel Carnat <j...@carnat.net> wrote: > > > Hello, > > > > > > I read in relayd.conf(5) that there is an SNMP agentx feature. And > > > there is an OPENBSD-RELAYD-MIB.txt file in 7.0 /usr/share/snmp/mibs > > > directory. > > > > > > But in snmpd.conf(5), I couldn't found any reference for subagent or > > > agentx. Reading the sources logs, I understood that agentx was removed > > > from snmpd(8) around Jun 30, 2020. > > > > btw, martijn@ is working on this, see "snmpd(8): New application layer - > > step towards agentx support" on tech@ which would benefit from test > > reports/feedback > > ++ > I do want to emphasise that that diff doesn't include the agentx bits. > But having more (any) test-reports will greatly help speed agentx > support in snmpd(8) up. > > > > > Is there a way to query relayd MIB on OpenBSD 7.0? > > > Either by using snmpd(8) or ports/net/net-snmpd. > > > > Worth a try via net-snmp, or build snmpd from an old checkout.. > > > I developed libagentx with net-snmpd, so that one should work just fine. > Setting "master agentx" in should work, since both daemons default to > /var/agentx/master (as specified by the RFC), but you might need to > tweak agentXPerms a little. > > I don't recommend using the old snmpd agentx code. There's quite a few > fixes since then and the reason I removed the code is because it allowed > anyone with access to crash the daemon by use after free. >
Thanks for the details. So I configured netsnmpd to access agentx from relayd. And it seems to work. As for now, I'm using "Joel Knight's Net-SNMP and snmpd coexistence" configuration. I already did so when I wanted to get disk & I/O details via SNMP. So that's OK for me if that's the way to go ; until agentx support in back in snmpd(8). I'll subscribe to tech@ so that I'll get notified when snmp diffs pops up and will test and report things.
