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-rwxr-xr-xmeta/recipes-core/dropbear/dropbear/init113
1 files changed, 113 insertions, 0 deletions
diff --git a/meta/recipes-core/dropbear/dropbear/init b/meta/recipes-core/dropbear/dropbear/init
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1#!/bin/sh
2### BEGIN INIT INFO
3# Provides: sshd
4# Required-Start: $remote_fs $syslog $networking
5# Required-Stop: $remote_fs $syslog
6# Default-Start: 2 3 4 5
7# Default-Stop: 1
8# Short-Description: Dropbear Secure Shell server
9### END INIT INFO
10#
11# Do not configure this file. Edit /etc/default/dropbear instead!
12#
13
14PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
15DAEMON=/usr/sbin/dropbear
16NAME=dropbear
17DESC="Dropbear SSH server"
18PIDFILE=/var/run/dropbear.pid
19
20DROPBEAR_PORT=22
21DROPBEAR_EXTRA_ARGS=
22NO_START=0
23
24set -e
25
26test ! -r /etc/default/dropbear || . /etc/default/dropbear
27test "$NO_START" = "0" || exit 0
28test -x "$DAEMON" || exit 0
29test ! -h /var/service/dropbear || exit 0
30
31readonly_rootfs=0
32for flag in `awk '{ if ($2 == "/") { split($4,FLAGS,",") } }; END { for (f in FLAGS) print FLAGS[f] }' </proc/mounts`; do
33 case $flag in
34 ro)
35 readonly_rootfs=1
36 ;;
37 esac
38done
39
40if [ $readonly_rootfs = "1" ]; then
41 mkdir -p /var/lib/dropbear
42 DROPBEAR_RSAKEY_DEFAULT="/var/lib/dropbear/dropbear_rsa_host_key"
43 DROPBEAR_DSSKEY_DEFAULT="/var/lib/dropbear/dropbear_dss_host_key"
44else
45 DROPBEAR_RSAKEY_DEFAULT="/etc/dropbear/dropbear_rsa_host_key"
46 DROPBEAR_DSSKEY_DEFAULT="/etc/dropbear/dropbear_dss_host_key"
47fi
48
49test -z "$DROPBEAR_BANNER" || \
50 DROPBEAR_EXTRA_ARGS="$DROPBEAR_EXTRA_ARGS -b $DROPBEAR_BANNER"
51test -n "$DROPBEAR_RSAKEY" || \
52 DROPBEAR_RSAKEY=$DROPBEAR_RSAKEY_DEFAULT
53test -n "$DROPBEAR_DSSKEY" || \
54 DROPBEAR_DSSKEY=$DROPBEAR_DSSKEY_DEFAULT
55test -n "$DROPBEAR_KEYTYPES" || \
56 DROPBEAR_KEYTYPES="rsa"
57
58gen_keys() {
59for t in $DROPBEAR_KEYTYPES; do
60 case $t in
61 rsa)
62 if [ -f "$DROPBEAR_RSAKEY" -a ! -s "$DROPBEAR_RSAKEY" ]; then
63 rm $DROPBEAR_RSAKEY || true
64 fi
65 test -f $DROPBEAR_RSAKEY || dropbearkey -t rsa -f $DROPBEAR_RSAKEY
66 ;;
67 dsa)
68 if [ -f "$DROPBEAR_DSSKEY" -a ! -s "$DROPBEAR_DSSKEY" ]; then
69 rm $DROPBEAR_DSSKEY || true
70 fi
71 test -f $DROPBEAR_DSSKEY || dropbearkey -t dss -f $DROPBEAR_DSSKEY
72 ;;
73 esac
74done
75}
76
77case "$1" in
78 start)
79 echo -n "Starting $DESC: "
80 gen_keys
81 KEY_ARGS=""
82 test -f $DROPBEAR_DSSKEY && KEY_ARGS="$KEY_ARGS -d $DROPBEAR_DSSKEY"
83 test -f $DROPBEAR_RSAKEY && KEY_ARGS="$KEY_ARGS -r $DROPBEAR_RSAKEY"
84 start-stop-daemon -S -p $PIDFILE \
85 -x "$DAEMON" -- $KEY_ARGS \
86 -p "$DROPBEAR_PORT" $DROPBEAR_EXTRA_ARGS
87 echo "$NAME."
88 ;;
89 stop)
90 echo -n "Stopping $DESC: "
91 start-stop-daemon -K -x "$DAEMON" -p $PIDFILE
92 echo "$NAME."
93 ;;
94 restart|force-reload)
95 echo -n "Restarting $DESC: "
96 start-stop-daemon -K -x "$DAEMON" -p $PIDFILE
97 sleep 1
98 KEY_ARGS=""
99 test -f $DROPBEAR_DSSKEY && KEY_ARGS="$KEY_ARGS -d $DROPBEAR_DSSKEY"
100 test -f $DROPBEAR_RSAKEY && KEY_ARGS="$KEY_ARGS -r $DROPBEAR_RSAKEY"
101 start-stop-daemon -S -p $PIDFILE \
102 -x "$DAEMON" -- $KEY_ARGS \
103 -p "$DROPBEAR_PORT" $DROPBEAR_EXTRA_ARGS
104 echo "$NAME."
105 ;;
106 *)
107 N=/etc/init.d/$NAME
108 echo "Usage: $N {start|stop|restart|force-reload}" >&2
109 exit 1
110 ;;
111esac
112
113exit 0