[Bug 290768] if_wg(4): handshake response has src and dst reverse

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 13 Nov 2025 07:18:04 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290768

--- Comment #17 from relvy <it@vineyard-sha.de> ---
Are there any updates?

If not I would like to bring up the EAFNOSUPPORT issue that is still there:

wg1: Handshake for peer 1 did not complete after 5 seconds, retrying (retry 15)
wg1: Sending handshake initiation to peer 1
wg1: Unable to send packet: 47

The "Unable to send packet" debug message comes from if_wg.c:wg_send_buf().

wg_send_buf() -> wg_send() -> return EAFNOSUPPORT; -> wg_send_buf() ->
DPRINT(sc, "Unable to send packet: %d\n", ret);

This means e->e_remote.r_sa.sa_family is neither AF_INET nor AF_INET6.

I suppose carp zeroes that out and we run the error path all the way along.

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