From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 5 Nov 2021 14:26:29 +0000 (+0100)
Subject: homed: add env var for overriding default mount options
X-Git-Tag: v250-rc1~283^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6309512c0239bd2c78b099c185b38c15fd096153;p=thirdparty%2Fsystemd.git

homed: add env var for overriding default mount options

This adds an esay way to override the default mount options to use for
LUKS home dirs via the env vars SYSTEMD_HOME_MOUNT_OPTIONS_EXT4,
SYSTEMD_HOME_MOUNT_OPTIONS_BTRFS, SYSTEMD_HOME_MOUNT_OPTIONS_XFS.

See: #15120
---

diff --git a/src/home/homework-mount.c b/src/home/homework-mount.c
index d73a908f1cf..234b965dc8e 100644
--- a/src/home/homework-mount.c
+++ b/src/home/homework-mount.c
@@ -20,6 +20,17 @@
 #include "user-util.h"
 
 static const char *mount_options_for_fstype(const char *fstype) {
+        const char *e;
+        char *n;
+
+        assert(fstype);
+
+        /* Allow overriding our built-in defaults with an environment variable */
+        n = strjoina("SYSTEMD_HOME_MOUNT_OPTIONS_", fstype);
+        e = getenv(ascii_strupper(n));
+        if (e)
+                return e;
+
         if (streq(fstype, "ext4"))
                 return "noquota,user_xattr";
         if (streq(fstype, "xfs"))