Backport semanage bug workaround

I.e. https://github.com/coreos/rpm-ostree/pull/4122, for
https://github.com/openshift/os/issues/1036.
This commit is contained in:
Jonathan Lebon 2022-11-02 15:40:33 -04:00
parent 3f8c02559f
commit 91907e91bc
2 changed files with 77 additions and 1 deletions

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@ -0,0 +1,71 @@
From 479050e7540dc90de9ec6f49960b98e095537224 Mon Sep 17 00:00:00 2001
From: Jonathan Lebon <jonathan@jlebon.com>
Date: Wed, 2 Nov 2022 12:19:09 -0400
Subject: [PATCH] libpriv/postprocess: work around semanage bug
There is a bug in the latest semanage code which causes an invocation of
`semodule --rebuild-if-modules-changed` to still write a policy even
though nothing changed since a full policy build. On FCOS and RHCOS,
this bug is triggered as early as `ostree admin deploy` in cosa when
creating the disk images. This results in shipping images with a policy
diff baked in.
Hack around this by immediately rerunning
`semodule --rebuild-if-modules-changed` after building the policy.
Fixes: https://github.com/openshift/os/issues/1036
---
src/libpriv/rpmostree-postprocess.cxx | 20 +++++++++++++++-----
tests/kolainst/nondestructive/misc.sh | 5 +++++
2 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/src/libpriv/rpmostree-postprocess.cxx b/src/libpriv/rpmostree-postprocess.cxx
index fc5c3cb0..bfadaa73 100644
--- a/src/libpriv/rpmostree-postprocess.cxx
+++ b/src/libpriv/rpmostree-postprocess.cxx
@@ -387,11 +387,21 @@ postprocess_final (int rootfs_dfd, rpmostreecxx::Treefile &treefile, gboolean un
{
g_print ("Recompiling policy\n");
- /* Now regenerate SELinux policy so that postprocess scripts from users and from us
- * (e.g. the /etc/default/useradd incision) that affect it are baked in. */
- rust::Vec child_argv = { rust::String ("semodule"), rust::String ("-nB") };
- ROSCXX_TRY (bubblewrap_run_sync (rootfs_dfd, child_argv, false, (bool)unified_core_mode),
- error);
+ {
+ /* Now regenerate SELinux policy so that postprocess scripts from users and from us
+ * (e.g. the /etc/default/useradd incision) that affect it are baked in. */
+ rust::Vec child_argv = { rust::String ("semodule"), rust::String ("-nB") };
+ ROSCXX_TRY (bubblewrap_run_sync (rootfs_dfd, child_argv, false, (bool)unified_core_mode),
+ error);
+ }
+
+ /* Temporary workaround for https://github.com/openshift/os/issues/1036. */
+ {
+ rust::Vec child_argv = { rust::String ("semodule"), rust::String ("-n"),
+ rust::String ("--rebuild-if-modules-changed") };
+ ROSCXX_TRY (bubblewrap_run_sync (rootfs_dfd, child_argv, false, (bool)unified_core_mode),
+ error);
+ }
}
auto container = treefile.get_container ();
diff --git a/tests/kolainst/nondestructive/misc.sh b/tests/kolainst/nondestructive/misc.sh
index f98a13f0..e43dc87d 100755
--- a/tests/kolainst/nondestructive/misc.sh
+++ b/tests/kolainst/nondestructive/misc.sh
@@ -7,6 +7,11 @@ cd $(mktemp -d)
libtest_prepare_offline
libtest_enable_repover 0
+# Sanity-check the policy isn't marked as modified
+if ostree admin config-diff | grep 'selinux/targeted/policy'; then
+ assert_not_reached "selinux policy is marked as modified"
+fi
+
# Ensure multicall is correctly set up and working.
R_O_DIGEST=$(sha512sum $(which rpm-ostree) | cut -d' ' -f1)
O_C_DIGEST=$(sha512sum $(which /usr/libexec/libostree/ext/ostree-container) | cut -d' ' -f1)
--
2.38.1

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@ -4,7 +4,7 @@
Summary: Hybrid image/package system
Name: rpm-ostree
Version: 2022.15
Release: 2%{?dist}
Release: 3%{?dist}
License: LGPLv2+
URL: https://github.com/coreos/rpm-ostree
# This tarball is generated via "cd packaging && make -f Makefile.dist-packaging dist-snapshot"
@ -12,6 +12,7 @@ URL: https://github.com/coreos/rpm-ostree
Source0: https://github.com/coreos/rpm-ostree/releases/download/v%{version}/rpm-ostree-%{version}.tar.xz
Patch0: 0001-util-Fix-fpermissive-warning.patch
Patch1: 0001-libpriv-postprocess-work-around-semanage-bug.patch
ExclusiveArch: %{rust_arches}
@ -236,6 +237,10 @@ $PYTHON autofiles.py > files.devel \
%files devel -f files.devel
%changelog
* Wed Nov 02 2022 Jonathan Lebon <jonathan@jlebon.com> - 2022.15-3
- Backport semanage bug workaround
https://github.com/coreos/rpm-ostree/pull/4122
* Tue Nov 01 2022 Colin Walters <walters@verbum.org> - 2022.15-2
- https://github.com/coreos/rpm-ostree/releases/tag/v2022.15