#!/bin/sh
#
# Start jail <jailname> or all
# Usage: start <jailname>|all
#

# shellcheck source=./includes
LIBDIR="$(dirname $0)" && . "${LIBDIR}/includes"

jail_name="${1:?}"
if [ -z "${jail_name}" ]; then
    "${LIBDIR}/bkctld-help" && exit 1
fi
jail_path=$(jail_path "${jail_name}")

test -d "${jail_path}" || error "${jail_name}: jail is missing."

"${LIBDIR}/bkctld-is-on" "${jail_name}" && exit 0

# Prepare the chroot
mount_jail_fs "${jail_name}"

# Start SSH in the chroot
chroot "${jail_path}" /usr/sbin/sshd -E /var/log/authlog || error "${jail_name}: failed to start SSH."
pidfile="${jail_path}/${SSHD_PID}"

# Wait for SSH to be up
# shellcheck disable=SC2034
for try in $(seq 1 10); do
    if [ -f "${pidfile}" ]; then
        pid=$(cat "${pidfile}")
        break
    else
        pid=""
        sleep 0.3
    fi
done

if [ -n "${pid}" ]; then
    notice "${jail_name}: jail has been started [${pid}]"
else
    error "${jail_name}: failed to fetch SSH pid within 3 sec."
fi