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@ -0,0 +1,93 @@
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From a0a32b4c2e2a03ff6ffcb6b7285905ec50892798 Mon Sep 17 00:00:00 2001
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From: Colin Walters <walters@verbum.org>
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Date: Tue, 4 Jun 2024 06:57:19 -0400
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Subject: [PATCH] repo: Don't try to perform labeling if SELinux is disabled
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The default for container execution is that `/sys/fs/selinux`
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is not mounted, and the libselinux library function `is_selinux_enabled`
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should be used to dynamically check if the system should attempt to perform SELinux labeling.
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This is how it's done by rpm, ostree, and systemd for example.
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But this code unconditionally tries to label if it finds a policy,
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which breaks in an obscure corner case
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when executed inside a container that includes policy files (e.g.
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fedora/rhel-bootc) but when we're not using overlayfs for the backend
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(with BUILDAH_BACKEND=vfs).
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Signed-off-by: Petr Písař <ppisar@redhat.com>
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---
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libdnf/repo/Repo.cpp | 50 +++++++++++++++++++++++---------------------
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1 file changed, 26 insertions(+), 24 deletions(-)
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diff --git a/libdnf/repo/Repo.cpp b/libdnf/repo/Repo.cpp
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index 16f15195..10b88813 100644
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--- a/libdnf/repo/Repo.cpp
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+++ b/libdnf/repo/Repo.cpp
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@@ -679,34 +679,36 @@ static int create_temporary_directory(char *name_template) {
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int old_default_context_was_retrieved = 0;
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struct selabel_handle *labeling_handle = NULL;
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- /* A purpose of this piece of code is to deal with applications whose
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- * security policy overrides a file context for temporary files but don't
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- * know that libdnf executes GnuPG which expects a default file context. */
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- if (0 == getfscreatecon(&old_default_context)) {
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- old_default_context_was_retrieved = 1;
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- } else {
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- logger->debug(tfm::format("Failed to retrieve a default SELinux context"));
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- }
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+ if (is_selinux_enabled()) {
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+ /* A purpose of this piece of code is to deal with applications whose
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+ * security policy overrides a file context for temporary files but don't
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+ * know that libdnf executes GnuPG which expects a default file context. */
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+ if (0 == getfscreatecon(&old_default_context)) {
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+ old_default_context_was_retrieved = 1;
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+ } else {
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+ logger->debug(tfm::format("Failed to retrieve a default SELinux context"));
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+ }
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- labeling_handle = selabel_open(SELABEL_CTX_FILE, NULL, 0);
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- if (NULL == labeling_handle) {
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- logger->debug(tfm::format("Failed to open a SELinux labeling handle: %s",
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- strerror(errno)));
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- } else {
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- if (selabel_lookup(labeling_handle, &new_default_context, name_template, 0700)) {
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- /* Here we could hard-code "system_u:object_r:user_tmp_t:s0", but
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- * that value should be really defined in default file context
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- * SELinux policy. Only log that the policy is incpomplete. */
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- logger->debug(tfm::format("Failed to look up a default SELinux label for \"%s\"",
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- name_template));
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+ labeling_handle = selabel_open(SELABEL_CTX_FILE, NULL, 0);
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+ if (NULL == labeling_handle) {
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+ logger->debug(tfm::format("Failed to open a SELinux labeling handle: %s",
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+ strerror(errno)));
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} else {
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- if (setfscreatecon(new_default_context)) {
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- logger->debug(tfm::format("Failed to set default SELinux context to \"%s\"",
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- new_default_context));
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+ if (selabel_lookup(labeling_handle, &new_default_context, name_template, 0700)) {
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+ /* Here we could hard-code "system_u:object_r:user_tmp_t:s0", but
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+ * that value should be really defined in default file context
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+ * SELinux policy. Only log that the policy is incpomplete. */
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+ logger->debug(tfm::format("Failed to look up a default SELinux label for \"%s\"",
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+ name_template));
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+ } else {
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+ if (setfscreatecon(new_default_context)) {
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+ logger->debug(tfm::format("Failed to set default SELinux context to \"%s\"",
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+ new_default_context));
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+ }
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+ freecon(new_default_context);
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}
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- freecon(new_default_context);
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+ selabel_close(labeling_handle);
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}
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- selabel_close(labeling_handle);
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}
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#endif
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--
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2.45.2
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@ -1,23 +0,0 @@
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diff -aruN libdnf-0.67.0/docs/hawkey/conf.py libdnf-0.67.0_inferit/docs/hawkey/conf.py
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--- libdnf-0.67.0/docs/hawkey/conf.py 2023-03-09 11:15:09.545126905 +0300
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+++ libdnf-0.67.0_inferit/docs/hawkey/conf.py 2023-03-09 11:23:02.687639783 +0300
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@@ -260,6 +260,6 @@
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rst_prolog = """
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.. default-domain:: py
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.. _libsolv: https://github.com/openSUSE/libsolv
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-.. _bugzilla: https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=hawkey
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+.. _bugzilla: https://bugs.msvsphere-os.ru/
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"""
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diff -aruN libdnf-0.67.0/libdnf/conf/Const.hpp libdnf-0.67.0_inferit/libdnf/conf/Const.hpp
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--- libdnf-0.67.0/libdnf/conf/Const.hpp 2023-03-09 11:15:09.547126891 +0300
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+++ libdnf-0.67.0_inferit/libdnf/conf/Const.hpp 2023-03-09 22:16:42.280571700 +0300
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@@ -41,7 +41,7 @@
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"installonlypkg(vm)",
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"multiversion(kernel)"};
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-constexpr const char * BUGTRACKER="https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora&component=dnf";
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+constexpr const char * BUGTRACKER="https://bugs.msvsphere-os.ru/";
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}
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