On 18 Oct 2021, at 4:46, Özkan KIRIK wrote:
Hi,
I'm trying to gather all even within jails/vnet interface stats which
interface type ifmd_data.ifi_type == IFT_ETHER (6) for bsnmpd. Related
function (not modified) is here:
https://github.com/freebsd/freebsd-src/blob/main/contrib/bsnmp/snmp_mibII/mibII.c#L926-L985
It's possible to add a filter interface type adding a line below line
961:
if (mib.ifmd_data.ifi_type != IFT_ETHER) return;
I'm looking for a way to iterate VNET instances, but net/vnet.h is
only for kernel space.
VNET_LIST_RLOCK_NOSLEEP();
VNET_FOREACH(vnet_iter) {
CURVNET_SET(vnet_iter);
mib_refresh_iflist();
CURVNET_RESTORE();
}
VNET_LIST_RUNLOCK_NOSLEEP();
The code above not working in userspace.
Also I wonder that if it's possible to switch between jails. The
pseudo code I want to write:
JAIL_FOREACH(jail_iter) {
jail_attach(jail_iter);
mib_refresh_iflist();
jail_detach();
}
What is the right way to gather all interface stats ?
Have a look at libkvm; I seem to remember adding vnet support.
/bz