Getting wireless stats from the kernel through SNMP
Sun Jun 8 17:53:08 PDT 2003
On Fri, Jun 06, 2003 at 08:46:35PM +0530, sriram_subramanian wrote:
> I'm working on getting the wireless statistics from the hostAP kernel modules using SNMP. I could not find a prism2 MIB, so presently I'm using the IEEE802dot11 MIB to get the stats through SNMP. Eventually I plan to write a prism2 MIB also.
> I'd like to know if anyone has worked in this direction before. I have generated a code framework for the SNMP agent by using the tool "mib2c". I need help - if someone can tell me how this agent can talk to the hostap kernel module and get the hostAp wireless stats ?
Do you have a list of counters and configuration items that you would
need for this? Host AP exports some values through procfs
(/proc/net/hostap/wlan#), some through Linux wireless extensions
ioctls, and private ioctls (mainly, hostapd and prism2_param ioctls).
Prism2 hw/firmware statistics (tallies) are available from
/proc/net/hostap/wlan#/stats. They are updated whenever wlan card sends
an update. In addition, you might want to run 'iwpriv wlan0 inquire
61696' to force update on the stats before reading them.
Jouni Malinen PGP id EFC895FA
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