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Upstream commit to backport:
commit e179e87a1179e272a9bdabb0220b17d61d099ee3
Author: Phil Sutter <phil>
Date: Thu Feb 6 15:08:41 2020 +0100
xtables-translate: Fix for interface name corner-cases
There are two special situations xlate_ifname() didn't cover for:
* Interface name containing '*': This went unchanged, creating a command
nft wouldn't accept. Instead translate into '\*' which doesn't change
semantics.
* Interface name being '+': Can't translate into nft wildcard character
as nft doesn't accept asterisk-only interface names. Instead decide
what to do based on 'invert' value: Skip match creation if false,
match against an invalid interface name if true.
Also add a test to make sure future changes to this behaviour are
noticed.
Signed-off-by: Phil Sutter <phil>
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHEA-2020:1889
Upstream commit to backport: commit e179e87a1179e272a9bdabb0220b17d61d099ee3 Author: Phil Sutter <phil> Date: Thu Feb 6 15:08:41 2020 +0100 xtables-translate: Fix for interface name corner-cases There are two special situations xlate_ifname() didn't cover for: * Interface name containing '*': This went unchanged, creating a command nft wouldn't accept. Instead translate into '\*' which doesn't change semantics. * Interface name being '+': Can't translate into nft wildcard character as nft doesn't accept asterisk-only interface names. Instead decide what to do based on 'invert' value: Skip match creation if false, match against an invalid interface name if true. Also add a test to make sure future changes to this behaviour are noticed. Signed-off-by: Phil Sutter <phil>