CVS commit: src/sys/net

Module Name:	src
Committed By:	riastradh
Date:		Wed Jul  1 23:40:16 UTC 2026

Modified Files:
	src/sys/net: if_wg.c

Log Message:
wg-userspace(8): Drop <4-byte UDP packets immediately.

Same as the kernel already does.  Add an assertion into
wg_receive_packets about this and a couple comments cross-referencing
wg_overudp_cb and wg_receive_packets.

And, while here, as a precaution in case the
inpcb_register_overudp_cb mechanism ever breaks down or gets
refactored, make wg_receive_packets drop <4-byte packets too -- this
path should be hit only when handling handshake packets, so adding
another predicted-not-taken branch here should cost essentially
nothing.

PR bin/60392: assertion "mbuflen >= sizeof(struct wg_msg)" failed


To generate a diff of this commit:
cvs rdiff -u -r1.140 -r1.141 src/sys/net/if_wg.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.