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unshare-helper
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Add UNSHH_ROOT

This commit is contained in:
Fierelier 2023-11-29 05:27:10 +01:00
parent 3c04bdf643
commit 232815d197
5 changed files with 25 additions and 10 deletions
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2
app/cmd/help
View File

@ -5,7 +5,7 @@ echo "\
Show this help.
* prefix-start </path/to/prefix> <command>
Start a program within a prefix.
Start a program within a prefix. If UNSHH_ROOT is set to 1, it will use settings that emulate root rights.
* app-export </path/to/prefix> <application name or /path/to/application.desktop> <name-suffix>
Add a desktop launcher from the prefix to the host.

5
app/skel/scripts/10_env.sh
View File

@ -1,8 +1,13 @@
UNSHH_PATH_ROOT="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
UNSHH_PATH_USER="/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games"
export PATH="$UNSHH_SKELDIR/bin:$UNSHH_PATH_ROOT"
while IFS='=' read -r -d '' n v; do
if [ "$n" = "UNSHH_"* ]; then
export -n "$n"
fi
done < <(env -0)
if ! [ "$UNSHH_ROOT" = "1" ]; then
UNSHH_ROOT="0"
fi

17
app/skel/scripts/30_user.sh
View File

@ -1,6 +1,11 @@
set +e
unshare --mount --map-root-user -R "$UNSHH_CHROOT" groupadd -g "$UNSHH_GROUP_ID" "$UNSHH_GROUP_NAME"
unshare --mount --map-root-user -R "$UNSHH_CHROOT" useradd -m --uid "$UNSHH_USER_ID" --gid "$UNSHH_GROUP_ID" "$UNSHH_USER_NAME"
set -e
mkdir -p "$UNSHH_CHROOT/home/$UNSHH_USER_NAME/host"
mount --bind "/home/$UNSHH_USER_NAME" "$UNSHH_CHROOT/home/$UNSHH_USER_NAME/host"
if [ "$UNSHH_ROOT" = "0" ]; then
set +e
unshare --mount --map-root-user -R "$UNSHH_CHROOT" groupadd -g "$UNSHH_GROUP_ID" "$UNSHH_GROUP_NAME"
unshare --mount --map-root-user -R "$UNSHH_CHROOT" useradd -m --uid "$UNSHH_USER_ID" --gid "$UNSHH_GROUP_ID" "$UNSHH_USER_NAME"
set -e
mkdir -p "$UNSHH_CHROOT/home/$UNSHH_USER_NAME/host"
mount --bind "/home/$UNSHH_USER_NAME" "$UNSHH_CHROOT/home/$UNSHH_USER_NAME/host"
else
mkdir -p "$UNSHH_CHROOT/root/host"
mount --bind "/home/$UNSHH_USER_NAME" "$UNSHH_CHROOT/root/host"
fi

4
app/skel/scripts/40_env-post.sh
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@ -1 +1,3 @@
export PATH="$UNSHH_PATH_USER"
if [ "$UNSHH_ROOT" = "0" ]; then
export PATH="$UNSHH_PATH_USER"
fi

7
app/skel/scripts/50_start.sh
View File

@ -1,2 +1,5 @@
exec unshare --mount --map-user="$UNSHH_USER_ID" --map-group="$UNSHH_GROUP_ID" -R "$UNSHH_CHROOT" "${UNSHH_COMMAND[@]}"
#exec unshare --mount --map-root-user -R "$UNSHH_CHROOT" "${UNSHH_COMMAND[@]}"
if [ "$UNSHH_ROOT" = "0" ]; then
exec unshare --mount --map-user="$UNSHH_USER_ID" --map-group="$UNSHH_GROUP_ID" -R "$UNSHH_CHROOT" "${UNSHH_COMMAND[@]}"
else
exec unshare --mount --map-root-user -R "$UNSHH_CHROOT" "${UNSHH_COMMAND[@]}"
fi