CVSROOT: /cvs
Module name: src
Changes by: d...@cvs.openbsd.org 2023/05/08 18:01:59
Modified files:
sbin/pflogd : pflogd.c
Log message:
switch pflogd from using a bpf read timeout to a wait timeout.
a bpf read timeout means every read will end after the timeout
expires. because pflogd has a half second read timeout it would sit
in a loop doing reads all the time even if there were no packets
to log.
the wait timeout means that when bpf catches a packet, it will wait
a bit for more packets to arrive before waking up the pending read.
pflogd now sits in the read syscall until packets are actually
available to log.
found by deraadt@ and ktrace
discussed with and ok sashan@
