150 lines
3.3 KiB
Bash
Executable File
150 lines
3.3 KiB
Bash
Executable File
#!/bin/sh /etc/rc.common
|
|
# Copyright (C) 2006-2009 OpenWrt.org
|
|
# Copyright (C) 2006 Carlos Sobrinho
|
|
|
|
NAME=dropbear
|
|
PROG=/usr/sbin/dropbear
|
|
START=50
|
|
PIDCOUNT=0
|
|
EXTRA_COMMANDS="killclients"
|
|
EXTRA_HELP=" killclients Kill ${NAME} processes except servers and yourself"
|
|
|
|
dropbear_start()
|
|
{
|
|
local section="$1"
|
|
|
|
# check if section is enabled (default)
|
|
local enabled
|
|
config_get_bool enabled "${section}" enable 1
|
|
[ "${enabled}" -eq 0 ] && return 1
|
|
|
|
# verbose parameter
|
|
local verbosed
|
|
config_get_bool verbosed "${section}" verbose 0
|
|
|
|
# increase pid file count to handle multiple instances correctly
|
|
PIDCOUNT="$(( ${PIDCOUNT} + 1))"
|
|
|
|
# prepare parameters
|
|
# A) password authentication
|
|
local nopasswd
|
|
local passauth
|
|
config_get_bool passauth "${section}" PasswordAuth 1
|
|
[ "${passauth}" -eq 0 ] && nopasswd=1
|
|
# B) listen port
|
|
local port
|
|
config_get port "${section}" Port
|
|
# C) banner file
|
|
local bannerfile
|
|
config_get bannerfile ${section} BannerFile
|
|
[ -f $bannerfile ] || bannerfile=''
|
|
|
|
# concatenate parameters
|
|
local args
|
|
args="${nopasswd:+-s }${port:+-p ${port} }${bannerfile:+-b $bannerfile }-P /var/run/${NAME}.${PIDCOUNT}.pid"
|
|
|
|
# execute program and return its exit code
|
|
[ "${verbosed}" -ne 0 ] && echo "${initscript}: section ${section} starting ${PROG} ${args}"
|
|
${PROG} ${args}
|
|
return $?
|
|
}
|
|
|
|
keygen()
|
|
{
|
|
for keytype in rsa dss; do
|
|
# check for keys
|
|
key=dropbear/dropbear_${keytype}_host_key
|
|
[ -f /tmp/$key -o -s /etc/$key ] || {
|
|
# generate missing keys
|
|
mkdir -p /tmp/dropbear
|
|
[ -x /usr/bin/dropbearkey ] && {
|
|
/usr/bin/dropbearkey -t $keytype -f /tmp/$key 2>&- >&- && exec /etc/rc.common "$initscript" start
|
|
} &
|
|
exit 0
|
|
}
|
|
done
|
|
|
|
lock /tmp/.switch2jffs
|
|
mkdir -p /etc/dropbear
|
|
mv /tmp/dropbear/dropbear_* /etc/dropbear/
|
|
lock -u /tmp/.switch2jffs
|
|
chown root /etc/dropbear
|
|
chmod 0700 /etc/dropbear
|
|
}
|
|
|
|
start()
|
|
{
|
|
[ -s /etc/dropbear/dropbear_rsa_host_key -a \
|
|
-s /etc/dropbear/dropbear_dss_host_key ] || keygen
|
|
|
|
config_load "${NAME}"
|
|
config_foreach dropbear_start dropbear
|
|
}
|
|
|
|
stop()
|
|
{
|
|
# killing all server processes
|
|
local pidfile
|
|
for pidfile in `ls /var/run/${NAME}.*.pid`
|
|
do
|
|
start-stop-daemon -K -s KILL -p "${pidfile}" -n "${NAME}" >/dev/null
|
|
rm -f "${pidfile}"
|
|
done
|
|
[ -z "${pidfile}" ] && echo "${initscript}: no pid files, if you get problems with start then try killclients"
|
|
}
|
|
|
|
killclients()
|
|
{
|
|
local ignore=''
|
|
local server
|
|
local pid
|
|
|
|
# if this script is run from inside a client session, then ignore that session
|
|
pid="$$"
|
|
while [ "${pid}" -ne 0 ]
|
|
do
|
|
# get parent process id
|
|
pid=`cut -d ' ' -f 4 "/proc/${pid}/stat"`
|
|
[ "${pid}" -eq 0 ] && break
|
|
|
|
# check if client connection
|
|
ps | grep -e "^[ ]*${pid} " | grep "${PROG}" >/dev/null
|
|
if [ $? -eq 0 ]
|
|
then
|
|
append ignore "${pid}"
|
|
break
|
|
fi
|
|
done
|
|
|
|
# get all server pids that should be ignored
|
|
for server in `cat /var/run/${NAME}.*.pid`
|
|
do
|
|
append ignore "${server}"
|
|
done
|
|
|
|
# get all running pids and kill client connections
|
|
local skip
|
|
for pid in `pidof "${NAME}"`
|
|
do
|
|
# check if correct program
|
|
ps | grep -e "^[ ]*${pid} " | grep "${PROG}" >/dev/null
|
|
[ $? -ne 0 ] && continue
|
|
|
|
# check if pid should be ignored (servers, ourself)
|
|
skip=0
|
|
for server in ${ignore}
|
|
do
|
|
if [ "${pid}" == "${server}" ]
|
|
then
|
|
skip=1
|
|
break
|
|
fi
|
|
done
|
|
[ "${skip}" -ne 0 ] && continue
|
|
|
|
# kill process
|
|
echo "${initscript}: Killing ${pid}..."
|
|
kill -KILL ${pid}
|
|
done
|
|
}
|