CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2023/10/23 04:22:06
Modified files:
sys/net : if_wg.c
Log message:
Prevent wg(4) stuck on peer destruction.
While interface going down and output stopped, packets could rest in
`if_snd' queue. So the (!ifq_empty(&sc->sc_if.if_snd)) condition will
always be true and wg_peer_destroy() will sleep until interface became
up and stuck packets transmitted.
Check IFF_RUNNING flag within (!ifq_empty(&sc->sc_if.if_snd)) loop in
wg_peer_destroy(). If the flag is not set that means interface is down,
so drain the `if_snd' queue manually to prevent wg_peer_destroy() stuck.
Problem reported and fix tested by Kirill Miazine.
ok bluhm@
