1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2006-2010 OpenWrt.org
3 # Copyright (C) 2006 Carlos Sobrinho
11 PROG
=/usr
/sbin
/dropbear
13 EXTRA_COMMANDS
="killclients"
14 EXTRA_HELP
=" killclients Kill ${NAME} processes except servers and yourself"
23 grep -qs "^ *$ifname:" /proc
/net
/dev ||
{
24 procd_append_param
command -p "$port"
29 ifconfig
"$ifname" |
sed -ne '
30 /addr: *fe[89ab][0-9a-f]:/d
31 s/.* addr: *\([0-9a-f:\.]*\).*/\1/p
34 procd_append_param
command -p "$addr:$port"
41 # check if section is enabled (default)
43 config_get_bool enabled
"${section}" enable 1
44 [ "${enabled}" -eq 0 ] && return 1
46 # increase pid file count to handle multiple instances correctly
47 PIDCOUNT
="$(( ${PIDCOUNT} + 1))"
49 local pid_file
="/var/run/${NAME}.${PIDCOUNT}.pid"
52 procd_set_param
command "$PROG" -F -P "$pid_file"
54 # prepare parameters (initialise with pid file)
57 # A) password authentication
58 config_get_bool val
"${section}" PasswordAuth
1
59 [ "${val}" -eq 0 ] && procd_append_param
command -s
61 # B) listen interface and port
64 config_get interface
"${section}" Interface
65 [ -n "$interface" ] && network_get_device interface
"$interface"
66 config_get port
"${section}" Port
22
67 append_ports
"$interface" "$port"
69 config_get val
"${section}" BannerFile
70 [ -f "${val}" ] && procd_append_param
command -b "${val}"
72 config_get_bool val
"${section}" GatewayPorts
0
73 [ "${val}" -eq 1 ] && procd_append_param
command -a
74 # E) root password authentication
75 config_get_bool val
"${section}" RootPasswordAuth
1
76 [ "${val}" -eq 0 ] && procd_append_param
command -g
78 config_get_bool val
"${section}" RootLogin
1
79 [ "${val}" -eq 0 ] && procd_append_param
command -w
81 config_get val
"${section}" rsakeyfile
82 [ -f "${val}" ] && procd_append_param
command -r "${val}"
83 config_get val
"${section}" dsskeyfile
84 [ -f "${val}" ] && procd_append_param
command -d "${val}"
91 for keytype
in rsa dss
; do
93 key
=dropbear
/dropbear_
${keytype}_host_key
94 [ -f /tmp
/$key -o -s /etc
/$key ] ||
{
95 # generate missing keys
96 mkdir
-p /tmp
/dropbear
97 [ -x /usr
/bin
/dropbearkey
] && {
98 /usr
/bin
/dropbearkey
-t $keytype -f /tmp
/$key 2>&- >&- && exec /etc
/rc.common
"$initscript" start
104 lock
/tmp
/.switch2jffs
105 mkdir
-p /etc
/dropbear
106 mv /tmp
/dropbear
/dropbear_
* /etc
/dropbear
/
107 lock
-u /tmp
/.switch2jffs
108 chown root
/etc
/dropbear
109 chmod 0700 /etc
/dropbear
114 [ -s /etc
/dropbear
/dropbear_rsa_host_key
-a \
115 -s /etc
/dropbear
/dropbear_dss_host_key
] || keygen
118 .
/lib
/functions
/network.sh
120 config_load
"${NAME}"
121 config_foreach dropbear_instance dropbear
126 procd_add_config_trigger
"dropbear" "/etc/init.d/dropbear" "restart"
135 # if this script is run from inside a client session, then ignore that session
137 while [ "${pid}" -ne 0 ]
139 # get parent process id
140 pid
=`cut -d ' ' -f 4 "/proc/${pid}/stat"`
141 [ "${pid}" -eq 0 ] && break
143 # check if client connection
144 grep -F -q -e "${PROG}" "/proc/${pid}/cmdline" && {
145 append ignore
"${pid}"
150 # get all server pids that should be ignored
151 for server
in `cat /var/run/${NAME}.*.pid`
153 append ignore
"${server}"
156 # get all running pids and kill client connections
158 for pid
in `pidof "${NAME}"`
160 # check if correct program, otherwise process next pid
161 grep -F -q -e "${PROG}" "/proc/${pid}/cmdline" ||
{
165 # check if pid should be ignored (servers, ourself)
167 for server
in ${ignore}
169 if [ "${pid}" == "${server}" ]
175 [ "${skip}" -ne 0 ] && continue
178 echo "${initscript}: Killing ${pid}..."