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[dunfell,7/9] systemd: Fix unwritable /var/lock when no sysvinit handling

Message ID b8aa4d53b636bec55ad0ff4de764222662647859.1663122098.git.steve@sakoman.com
State Accepted, archived
Commit b8aa4d53b636bec55ad0ff4de764222662647859
Headers show
Series [dunfell,1/9] python3: Fix CVE-2021-28861 for python3 | expand

Commit Message

Steve Sakoman Sept. 14, 2022, 2:25 a.m. UTC 
From: "niko.mauno@vaisala.com" <niko.mauno@vaisala.com>

Commit 8089cefed8e83c0348037768c292058f1bcbbbe5 ("systemd: Add
PACKAGECONFIG for sysvinit") decoupled enabling of systemd's sysvinit
handling behavior behind a distinct PACKAGECONFIG feature.

This new option affects among other things the installing of
tmpfiles.d/legacy.conf, which is responsible for creating /run/lock
directory, which is pointed to by /var/lock symlink provided by
base-files package.

In case the option is not enabled, then base-files provided /var/lock
is a dangling symlink on resulting rootfs, causing problems with
certain Linux userspace components that rely on existence of writable
/var/lock directory. As an example:

  # fw_printenv
  Error opening lock file /var/lock/fw_printenv.lock

Since Filesystem Hierarchy Standard Version 3.0 states in
https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch05s09.html that

  Lock files should be stored within the /var/lock directory structure.

Ensure the /run/lock directory is always created, so that lock files
can be stored under /var/lock also when 'sysvinit' handling is
disabled.

(From OE-Core rev: 85e5ee2c35cf5778c3aefda45f526e8f6a511131)

Signed-off-by: Niko Mauno <niko.mauno@vaisala.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
 meta/recipes-core/systemd/systemd/00-create-volatile.conf | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/meta/recipes-core/systemd/systemd/00-create-volatile.conf b/meta/recipes-core/systemd/systemd/00-create-volatile.conf
index 87cbe1e7d3..c4277221a2 100644
--- a/meta/recipes-core/systemd/systemd/00-create-volatile.conf
+++ b/meta/recipes-core/systemd/systemd/00-create-volatile.conf
@@ -3,5 +3,6 @@ 
 # inside /var/log.
 
 
+d		/run/lock		1777	-	-	-
 d		/var/volatile/log		-	-	-	-
 d		/var/volatile/tmp		1777	-	-