From: Ondřej Surý <ondrej@isc.org>
Date: Wed, 2 Oct 2024 12:16:03 +0000 (+0000)
Subject: fix: dev: Don't enable REUSEADDR on outgoing UDP sockets
X-Git-Tag: v9.21.2~2
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=27c4d7ef6d9d6f68183df4e6ca3bae8472d71804;p=thirdparty%2Fbind9.git

fix: dev: Don't enable REUSEADDR on outgoing UDP sockets

The outgoing UDP sockets enabled `SO_REUSEADDR` that allows sharing of the UDP sockets, but with one big caveat - the socket that was opened the last would get all traffic.  The dispatch code would ignore the invalid responses in the dns_dispatch, but this could lead to unexpected results.

Merge branch 'ondrej/fix-outgoing-UDP-port-selection' into 'main'

See merge request isc-projects/bind9!9569
---

27c4d7ef6d9d6f68183df4e6ca3bae8472d71804