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core: Imply DefaultDependencies=no for credential mounts

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Currently, on soft-reboot, /run/credentials/@system is unmounted
because it has DefaultDependencies=yes and as such will have
Conflicts=umount.target and Before=umount.target. Let's make sure
credential mounts survive soft-reboot by implying DefaultDependencies=no
for credential mounts.
This commit is contained in:
Daan De Meyer 2024-05-14 10:25:33 +02:00
parent 381c3b64d0
commit 3c0a1b1e70
3 changed files with 8 additions and 4 deletions
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8
src/core/mount.c
View File

@ -463,10 +463,7 @@ static int mount_add_default_ordering_dependencies(Mount *m, MountParameters *p,
after = SPECIAL_LOCAL_FS_PRE_TARGET;
before = SPECIAL_INITRD_USR_FS_TARGET;
} else if (mount_is_credentials(m))
after = before = NULL;
else if (mount_is_network(p)) {
} else if (mount_is_network(p)) {
after = SPECIAL_REMOTE_FS_PRE_TARGET;
before = SPECIAL_REMOTE_FS_TARGET;
@ -653,6 +650,9 @@ static int mount_add_extras(Mount *m) {
return r;
}
if (mount_is_credentials(m))
u->default_dependencies = false;
r = unit_patch_contexts(u);
if (r < 0)
return r;

1
test/TEST-82-SOFTREBOOT/test.sh
View File

@ -10,6 +10,7 @@ TEST_SKIP_SHUTDOWN=yes
IMAGE_NAME="softreboot"
TEST_NO_NSPAWN=1
TEST_INSTALL_VERITY_MINIMAL=1
KERNEL_APPEND="${KERNEL_APPEND:-} systemd.set_credential=kernelcmdlinecred:uff"
# shellcheck source=test/test-functions
. "$TEST_BASE_DIR/test-functions"

3
test/units/testsuite-82.sh
View File

@ -113,6 +113,9 @@ elif [ -f /run/testsuite82.touch ]; then
cat /run/testsuite82.signal
test "$(jq -r '.payload.data[1].type.data' </run/testsuite82.signal)" = "soft-reboot"
# Check that the system credentials survived the soft reboot.
test "$(systemd-creds cat --system kernelcmdlinecred)" = "uff"
# Upload another entry
T="/dev/shm/fdstore.$RANDOM"
echo "miaumiau" >"$T"