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|
#!/usr/bin/env bash
user="$1"
rootuser="$HOME/$user/"
mkdir -p $rootuser
orig="$SSH_ORIGINAL_COMMAND"
if [ -z "$orig" ]; then
orig="/bin/bash -l"
fi
if [ "${orig:0:7}" = "command" ]; then
orig="${orig:8}"
fi
case "$orig" in
rsync*)
rrsync $HOME/$user/
;;
*)
nix_store_paths() {
nix-store -q -R \
/run/current-system/sw \
/etc/profiles/per-user/pub \
/etc/ssl/certs/ca-bundle.crt \
| while read i; do
printf '%s--ro-bind\0'$i'\0'$i'\0' ''
done
if [ -e "/run/current-system/pub/$user" ]; then
nix-store -q -R "/run/current-system/pub/$user" \
| while read i; do
printf '%s--ro-bind\0'$i'\0'$i'\0' ''
done
printf '%s--ro-bind\0/run/current-system/pub/'$user'/bin\0/bin-pub-'$user'\0' ''
fi
}
set -euo pipefail
(exec -c bwrap --ro-bind /usr /usr \
--args 10 \
--dir /tmp \
--dir /var \
--symlink ../tmp var/tmp \
--proc /proc \
--dev /dev \
--ro-bind /etc/resolv.conf /etc/resolv.conf \
--ro-bind /etc/zoneinfo /etc/zoneinfo \
--ro-bind /etc/ssl /etc/ssl \
--ro-bind /etc/static/ssl/certs /etc/static/ssl/certs \
--ro-bind /run/current-system/sw/lib/locale/locale-archive /etc/locale-archive \
--ro-bind /run/current-system/sw/bin /bin \
--ro-bind /etc/profiles/per-user/pub/bin /bin-pub \
--bind /var/lib/pub/$user /var/lib/pub \
--dir /var/lib/commons \
--ro-bind $TMUX_RESTRICT /var/lib/commons/tmux.restrict.conf \
--chdir /var/lib/pub \
--unshare-all \
--share-net \
--dir /run/user/$(id -u) \
--setenv TERM "$TERM" \
--setenv LOCALE_ARCHIVE "/etc/locale-archive" \
--setenv XDG_RUNTIME_DIR "/run/user/`id -u`" \
--setenv PS1 "$user@pub $ " \
--setenv PATH "/bin-pub-$user:/bin:/bin-pub" \
--setenv HOME "/var/lib/pub" \
--file 11 /etc/passwd \
--file 12 /etc/group \
-- $orig) \
10< <(nix_store_paths | sort | uniq) \
11< <(getent passwd $UID 65534) \
12< <(getent group $(id -g) 65534)
;;
esac
|
