Public bug reported:
[Impact]
Groovy linux 5.8.0-44.50 backported from upstream stable the following commit,
which broke the build of xtables-addons dkms modules on Groovy and Focal 5.8
kernels based on this release:
"netfilter: use actual socket sk rather than skb sk when routing harder"
(Upstream commit 46d6c5ae953cc0be38efd0e469284df7c4328cf8).
On Focal, xtables-addons was already changed to accommodate this change
to the 5.4 kernels (bug 1907109), however the signature detection
mechanism used for the 5.4 kernels doesn't work with the 5.8 kernels so
a more robust mechanism will be needed.
[Test case]
Install xtables-addons-dkms package.
[Fix]
The proposed fix is to add a script (configure_features.sh) which will be
executed before the dkms modules are build to detect which function signature
is provided by the kernel being built for. This script will save a header file
with some #define's which will be used by the compatibility headers to choose
the correct function signature. This is a mechanism similar to what is already
used by some other dkms packages.
[Where problems could occur]
If the function signature detection is not done correctly, the dkms packages
could fail building again.
** Affects: xtables-addons (Ubuntu)
Importance: Undecided
Status: Fix Released
** Affects: xtables-addons (Ubuntu Focal)
Importance: High
Assignee: Kleber Sacilotto de Souza (kleber-souza)
Status: In Progress
** Affects: xtables-addons (Ubuntu Groovy)
Importance: High
Assignee: Kleber Sacilotto de Souza (kleber-souza)
Status: In Progress
** Also affects: xtables-addons (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: xtables-addons (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: xtables-addons (Ubuntu)
Status: New => Fix Released
** Changed in: xtables-addons (Ubuntu Focal)
Status: New => In Progress
** Changed in: xtables-addons (Ubuntu Groovy)
Status: New => In Progress
** Changed in: xtables-addons (Ubuntu Focal)
Assignee: (unassigned) => Kleber Sacilotto de Souza (kleber-souza)
** Changed in: xtables-addons (Ubuntu Groovy)
Assignee: (unassigned) => Kleber Sacilotto de Souza (kleber-souza)
** Changed in: xtables-addons (Ubuntu Focal)
Importance: Undecided => High
** Changed in: xtables-addons (Ubuntu Groovy)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1915177
Title:
xtables-addons fails to build after ip_route_me_harder() signature
change
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