[Bug 255705] Routing does not honor mbuf_tag PACKET_TAG_IPFORWARD correctly

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 18 Apr 2022 09:11:38 UTC

--- Comment #7 from commit-hook@FreeBSD.org ---
A commit in branch stable/13 references this bug:


commit 17c9c2049004038ed6f2dc23a64cb9f74411ec52
Author:     Andrey V. Elsukov <ae@FreeBSD.org>
AuthorDate: 2022-04-01 13:49:25 +0000
Commit:     Andrey V. Elsukov <ae@FreeBSD.org>
CommitDate: 2022-04-18 08:58:45 +0000

    Fix ipfw fwd that doesn't work in some cases

    For IPv4 use dst pointer as destination address in fib4_lookup().
    It keeps destination address from IPv4 header and can be changed
    when PACKET_TAG_IPFORWARD tag was set by packet filter.

    For IPv6 override destination address with address from dst_sa.sin6_addr,
    that was set from PACKET_TAG_IPFORWARD tag.

    Reviewed by:    eugen
    PR:             256828, 261697, 255705
    Differential Revision: https://reviews.freebsd.org/D34732

    (cherry picked from commit 7d98cc096b995ca3bfd85277ed009b0f872c3e1b)

 sys/netinet/ip_output.c   | 2 +-
 sys/netinet6/ip6_output.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

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