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test: use setpriv instead of su for user switch from root

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systemd-repart needs to find mkfs.ext4 for the test.
This is located in the directory /usr/sbin on openSUSE Tumbleweed.
But since the variable ALWAYS_SET_PATH in /etc/login.defs is set to yes,
su re-initializes the $PATH variable and removes /usr/sbin.
Hence, mkfs.ext4 is not found and the test fails.
Using setpriv instead of su fixes this issue and is more appropriate to
do the switch user task from root.

[zjs: move setpriv to $BASICTOOLS and force-push to retrigger CI]
This commit is contained in:
Thomas Blume 2023-03-14 15:21:29 +01:00 committed by Mike Yuan
parent 6f1fe575f0
commit c7bf1959d7
4 changed files with 6 additions and 8 deletions
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5
test/test-functions
View file

@ -214,6 +214,7 @@ BASICTOOLS=(
seq
setfattr
setfont
setpriv
setsid
sfdisk
sh
@ -2651,12 +2652,12 @@ inst_binary() {
# Same as above, but we need to wrap certain libraries unconditionally
#
# chown, getent, login, su, useradd, userdel - dlopen() (not only) systemd's PAM modules
# ls, mkfs.*, mksquashfs, mkswap, stat
# ls, mkfs.*, mksquashfs, mkswap, setpriv, stat
# - pull in nss_systemd with certain options (like ls -l) when
# nsswitch.conf uses [SUCCESS=merge] (like on Arch Linux)
# delv, dig - pull in nss_resolve if `resolve` is in nsswitch.conf
# tar - called by machinectl in TEST-25
bin_rx='/(chown|delv|dig|getent|login|ls|mkfs\.[a-z0-9]+|mksquashfs|mkswap|stat|su|tar|useradd|userdel)$'
bin_rx='/(chown|delv|dig|getent|login|ls|mkfs\.[a-z0-9]+|mksquashfs|mkswap|setpriv|stat|su|tar|useradd|userdel)$'
if get_bool "$IS_BUILT_WITH_ASAN" && [[ "$bin" =~ $bin_rx ]]; then
wrap_binary=1
fi

3
test/units/testsuite-20.sh
View file

@ -151,8 +151,7 @@ test "$(systemctl show -P Result test20-true.scope)" = success
runas() {
declare userid=$1
shift
# shellcheck disable=SC2016
su "$userid" -s /bin/sh -c 'XDG_RUNTIME_DIR=/run/user/$UID exec "$@"' -- sh "$@"
XDG_RUNTIME_DIR=/run/user/"$(id -u "$userid")" setpriv --reuid="$userid" --init-groups "$@"
}
systemctl start user@4711.service

3
test/units/testsuite-43.sh
View file

@ -8,8 +8,7 @@ systemd-analyze log-level debug
runas() {
declare userid=$1
shift
# shellcheck disable=SC2016
su "$userid" -s /bin/sh -c 'XDG_RUNTIME_DIR=/run/user/$UID exec "$@"' -- sh "$@"
XDG_RUNTIME_DIR=/run/user/"$(id -u "$userid")" setpriv --reuid="$userid" --init-groups "$@"
}
runas testuser systemd-run --wait --user --unit=test-private-users \

3
test/units/testsuite-58.sh
View file

@ -6,8 +6,7 @@ set -o pipefail
runas() {
declare userid=$1
shift
# shellcheck disable=SC2016
su "$userid" -s /bin/sh -c 'XDG_RUNTIME_DIR=/run/user/$UID exec "$@"' -- sh "$@"
XDG_RUNTIME_DIR=/run/user/"$(id -u "$userid")" setpriv --reuid="$userid" --init-groups "$@"
}
if ! command -v systemd-repart &>/dev/null; then