1*4882a593Smuzhiyun#!/bin/sh 2*4882a593Smuzhiyun# 3*4882a593Smuzhiyun# Starts dropbear sshd. 4*4882a593Smuzhiyun# 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun# Allow a few customizations from a config file 7*4882a593Smuzhiyuntest -r /etc/default/dropbear && . /etc/default/dropbear 8*4882a593Smuzhiyun 9*4882a593Smuzhiyunstart() { 10*4882a593Smuzhiyun DROPBEAR_ARGS="$DROPBEAR_ARGS -R" 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun # If /etc/dropbear is a symlink to /var/run/dropbear, and 13*4882a593Smuzhiyun # - the filesystem is RO (i.e. we can not rm the symlink), 14*4882a593Smuzhiyun # create the directory pointed to by the symlink. 15*4882a593Smuzhiyun # - the filesystem is RW (i.e. we can rm the symlink), 16*4882a593Smuzhiyun # replace the symlink with an actual directory 17*4882a593Smuzhiyun if [ -L /etc/dropbear \ 18*4882a593Smuzhiyun -a "$(readlink /etc/dropbear)" = "/var/run/dropbear" ] 19*4882a593Smuzhiyun then 20*4882a593Smuzhiyun if rm -f /etc/dropbear >/dev/null 2>&1; then 21*4882a593Smuzhiyun mkdir -p /etc/dropbear 22*4882a593Smuzhiyun else 23*4882a593Smuzhiyun echo "No persistent location to store SSH host keys. New keys will be" 24*4882a593Smuzhiyun echo "generated at each boot. Are you sure this is what you want to do?" 25*4882a593Smuzhiyun mkdir -p "$(readlink /etc/dropbear)" 26*4882a593Smuzhiyun fi 27*4882a593Smuzhiyun fi 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun printf "Starting dropbear sshd: " 30*4882a593Smuzhiyun umask 077 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun start-stop-daemon -S -q -p /var/run/dropbear.pid \ 33*4882a593Smuzhiyun --exec /usr/sbin/dropbear -- $DROPBEAR_ARGS 34*4882a593Smuzhiyun [ $? = 0 ] && echo "OK" || echo "FAIL" 35*4882a593Smuzhiyun} 36*4882a593Smuzhiyunstop() { 37*4882a593Smuzhiyun printf "Stopping dropbear sshd: " 38*4882a593Smuzhiyun start-stop-daemon -K -q -p /var/run/dropbear.pid 39*4882a593Smuzhiyun [ $? = 0 ] && echo "OK" || echo "FAIL" 40*4882a593Smuzhiyun} 41*4882a593Smuzhiyunrestart() { 42*4882a593Smuzhiyun stop 43*4882a593Smuzhiyun start 44*4882a593Smuzhiyun} 45*4882a593Smuzhiyun 46*4882a593Smuzhiyuncase "$1" in 47*4882a593Smuzhiyun start) 48*4882a593Smuzhiyun start 49*4882a593Smuzhiyun ;; 50*4882a593Smuzhiyun stop) 51*4882a593Smuzhiyun stop 52*4882a593Smuzhiyun ;; 53*4882a593Smuzhiyun restart|reload) 54*4882a593Smuzhiyun restart 55*4882a593Smuzhiyun ;; 56*4882a593Smuzhiyun *) 57*4882a593Smuzhiyun echo "Usage: $0 {start|stop|restart}" 58*4882a593Smuzhiyun exit 1 59*4882a593Smuzhiyunesac 60*4882a593Smuzhiyun 61*4882a593Smuzhiyunexit $? 62