1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2006-2010 OpenWrt.org
3 # Copyright (C) 2006 Carlos Sobrinho
9 PROG
=/usr
/sbin
/dropbear
12 EXTRA_COMMANDS
="killclients"
13 EXTRA_HELP
=" killclients Kill ${NAME} processes except servers and yourself"
20 [ -z "$ipaddrs" ] && {
21 procd_append_param
command -p "$port"
25 for addr
in $ipaddrs; do
26 procd_append_param
command -p "$addr:$port"
30 validate_section_dropbear
()
32 uci_validate_section dropbear dropbear
"${1}" \
33 'PasswordAuth:bool:1' \
36 'GatewayPorts:bool:0' \
37 'RootPasswordAuth:bool:1' \
42 'Port:list(port):22' \
43 'SSHKeepAlive:uinteger:300' \
44 'IdleTimeout:uinteger:0' \
50 local PasswordAuth
enable Interface GatewayPorts \
51 RootPasswordAuth RootLogin rsakeyfile \
52 dsskeyfile BannerFile Port SSHKeepAlive IdleTimeout \
55 validate_section_dropbear
"${1}" ||
{
56 echo "validation failed"
60 [ -n "${Interface}" ] && {
61 network_get_ipaddrs_all ipaddrs
"${Interface}" ||
{
62 echo "interface ${Interface} has no physdev or physdev has no suitable ip"
67 [ "${enable}" = "0" ] && return 1
68 PIDCOUNT
="$(( ${PIDCOUNT} + 1))"
69 local pid_file
="/var/run/${NAME}.${PIDCOUNT}.pid"
72 procd_set_param
command "$PROG" -F -P "$pid_file"
73 [ "${PasswordAuth}" -eq 0 ] && procd_append_param
command -s
74 [ "${GatewayPorts}" -eq 1 ] && procd_append_param
command -a
75 [ "${RootPasswordAuth}" -eq 0 ] && procd_append_param
command -g
76 [ "${RootLogin}" -eq 0 ] && procd_append_param
command -w
77 [ -n "${rsakeyfile}" ] && procd_append_param
command -r "${rsakeyfile}"
78 [ -n "${dsskeyfile}" ] && procd_append_param
command -d "${dsskeyfile}"
79 [ -n "${BannerFile}" ] && procd_append_param
command -b "${BannerFile}"
80 append_ports
"${ipaddrs}" "${Port}"
81 [ "${IdleTimeout}" -ne 0 ] && procd_append_param
command -I "${IdleTimeout}"
82 [ "${SSHKeepAlive}" -ne 0 ] && procd_append_param
command -K "${SSHKeepAlive}"
83 [ "${mdns}" -ne 0 ] && procd_add_mdns
"ssh" "tcp" "$Port" "daemon=dropbear"
89 for keytype
in rsa dss
; do
91 key
=dropbear
/dropbear_
${keytype}_host_key
92 [ -f /tmp
/$key -o -s /etc
/$key ] ||
{
93 # generate missing keys
94 mkdir
-p /tmp
/dropbear
95 [ -x /usr
/bin
/dropbearkey
] && {
96 /usr
/bin
/dropbearkey
-t $keytype -f /tmp
/$key 2>&- >&- && exec /etc
/rc.common
"$initscript" start
102 lock
/tmp
/.switch2jffs
103 mkdir
-p /etc
/dropbear
104 mv /tmp
/dropbear
/dropbear_
* /etc
/dropbear
/
105 lock
-u /tmp
/.switch2jffs
106 chown root
/etc
/dropbear
107 chmod 0700 /etc
/dropbear
112 [ -s /etc
/dropbear
/dropbear_rsa_host_key
-a \
113 -s /etc
/dropbear
/dropbear_dss_host_key
] || keygen
116 .
/lib
/functions
/network.sh
118 config_load
"${NAME}"
119 config_foreach dropbear_instance dropbear
124 procd_add_reload_trigger
"dropbear"
125 procd_add_validation validate_section_dropbear
134 # if this script is run from inside a client session, then ignore that session
136 while [ "${pid}" -ne 0 ]
138 # get parent process id
139 pid
=`cut -d ' ' -f 4 "/proc/${pid}/stat"`
140 [ "${pid}" -eq 0 ] && break
142 # check if client connection
143 grep -F -q -e "${PROG}" "/proc/${pid}/cmdline" && {
144 append ignore
"${pid}"
149 # get all server pids that should be ignored
150 for server
in `cat /var/run/${NAME}.*.pid`
152 append ignore
"${server}"
155 # get all running pids and kill client connections
157 for pid
in `pidof "${NAME}"`
159 # check if correct program, otherwise process next pid
160 grep -F -q -e "${PROG}" "/proc/${pid}/cmdline" ||
{
164 # check if pid should be ignored (servers, ourself)
166 for server
in ${ignore}
168 if [ "${pid}" = "${server}" ]
174 [ "${skip}" -ne 0 ] && continue
177 echo "${initscript}: Killing ${pid}..."