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dropbear: ensure the interface has an ip-address

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Use network_get_ipaddrs_all to get all ip-addresses of an interface. If the
function fails, the interface does not exists or has not any suiteable ip
addresses assigned.

Use the returned ip-address(es) to construct the dropbear listen address.

Signed-off-by: Mathias Kresin <openwrt@kresin.me>

SVN-Revision: 42857
This commit is contained in:
Steven Barth 2014-10-09 07:16:35 +00:00
parent 14e6559eee
commit b2d099c11c
1 changed files with 12 additions and 11 deletions
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23
package/network/services/dropbear/files/dropbear.init
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@ -14,20 +14,15 @@ EXTRA_HELP=" killclients Kill ${NAME} processes except servers and yourself"
append_ports() append_ports()
{ {
local ifname="$1" local ipaddrs="$1"
local port="$2" local port="$2"
grep -qs "^ *$ifname:" /proc/net/dev || { [ -z "$ipaddrs" ] && {
procd_append_param command -p "$port" procd_append_param command -p "$port"
return return
} }
for addr in $( for addr in $ipaddrs; do
ifconfig "$ifname" | sed -ne '
/addr: *fe[89ab][0-9a-f]:/d
s/.* addr: *\([0-9a-f:\.]*\).*/\1/p
'
); do
procd_append_param command -p "$addr:$port" procd_append_param command -p "$addr:$port"
done done
} }
@ -55,13 +50,20 @@ dropbear_instance()
local PasswordAuth enable Interface GatewayPorts \ local PasswordAuth enable Interface GatewayPorts \
RootPasswordAuth RootLogin rsakeyfile \ RootPasswordAuth RootLogin rsakeyfile \
dsskeyfile BannerFile Port SSHKeepAlive IdleTimeout \ dsskeyfile BannerFile Port SSHKeepAlive IdleTimeout \
mdns mdns ipaddrs
validate_section_dropbear "${1}" || { validate_section_dropbear "${1}" || {
echo "validation failed" echo "validation failed"
return 1 return 1
} }
[ -n "${Interface}" ] && {
network_get_ipaddrs_all ipaddrs "${Interface}" || {
echo "interface ${Interface} has no physdev or physdev has no suitable ip"
return 1
}
}
[ "${enable}" = "0" ] && return 1 [ "${enable}" = "0" ] && return 1
PIDCOUNT="$(( ${PIDCOUNT} + 1))" PIDCOUNT="$(( ${PIDCOUNT} + 1))"
local pid_file="/var/run/${NAME}.${PIDCOUNT}.pid" local pid_file="/var/run/${NAME}.${PIDCOUNT}.pid"
@ -75,8 +77,7 @@ dropbear_instance()
[ -n "${rsakeyfile}" ] && procd_append_param command -r "${rsakeyfile}" [ -n "${rsakeyfile}" ] && procd_append_param command -r "${rsakeyfile}"
[ -n "${dsskeyfile}" ] && procd_append_param command -d "${dsskeyfile}" [ -n "${dsskeyfile}" ] && procd_append_param command -d "${dsskeyfile}"
[ -n "${BannerFile}" ] && procd_append_param command -b "${BannerFile}" [ -n "${BannerFile}" ] && procd_append_param command -b "${BannerFile}"
[ -n "${Interface}" ] && network_get_device Interface "${Interface}" append_ports "${ipaddrs}" "${Port}"
append_ports "${Interface}" "${Port}"
[ "${IdleTimeout}" -ne 0 ] && procd_append_param command -I "${IdleTimeout}" [ "${IdleTimeout}" -ne 0 ] && procd_append_param command -I "${IdleTimeout}"
[ "${SSHKeepAlive}" -ne 0 ] && procd_append_param command -K "${SSHKeepAlive}" [ "${SSHKeepAlive}" -ne 0 ] && procd_append_param command -K "${SSHKeepAlive}"
[ "${mdns}" -ne 0 ] && procd_add_mdns "ssh" "tcp" "$Port" "daemon=dropbear" [ "${mdns}" -ne 0 ] && procd_add_mdns "ssh" "tcp" "$Port" "daemon=dropbear"