You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
204 lines
6.5 KiB
204 lines
6.5 KiB
#!/bin/sh
|
|
# travelmate, a wlan connection manager for travel router
|
|
# written by Dirk Brenken (dev@brenken.org)
|
|
|
|
# This is free software, licensed under the GNU General Public License v3.
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
# prepare environment
|
|
#
|
|
LC_ALL=C
|
|
PATH="/usr/sbin:/usr/bin:/sbin:/bin"
|
|
trm_ver="0.3.2"
|
|
trm_enabled=1
|
|
trm_debug=0
|
|
trm_maxwait=20
|
|
trm_maxretry=3
|
|
trm_iw=1
|
|
|
|
f_envload()
|
|
{
|
|
# source required system libraries
|
|
#
|
|
if [ -r "/lib/functions.sh" ]
|
|
then
|
|
. "/lib/functions.sh"
|
|
else
|
|
f_log "error" "status ::: required system library not found"
|
|
fi
|
|
|
|
# load uci config and check 'enabled' option
|
|
#
|
|
option_cb()
|
|
{
|
|
local option="${1}"
|
|
local value="${2}"
|
|
eval "${option}=\"${value}\""
|
|
}
|
|
config_load travelmate
|
|
|
|
if [ ${trm_enabled} -ne 1 ]
|
|
then
|
|
f_log "info " "status ::: travelmate is currently disabled, please set 'trm_enabled' to '1' to use this service"
|
|
exit 0
|
|
fi
|
|
|
|
# check for preferred wireless tool
|
|
#
|
|
if [ ${trm_iw} -eq 1 ]
|
|
then
|
|
trm_scanner="$(which iw)"
|
|
else
|
|
trm_scanner="$(which iwinfo)"
|
|
fi
|
|
if [ -z "${trm_scanner}" ]
|
|
then
|
|
f_log "error" "status ::: no wireless tool for wlan scanning found, please install 'iw' or 'iwinfo'"
|
|
fi
|
|
}
|
|
|
|
# function to bring down all STA interfaces
|
|
#
|
|
f_prepare()
|
|
{
|
|
local config="${1}"
|
|
local mode="$(uci -q get wireless."${config}".mode)"
|
|
local network="$(uci -q get wireless."${config}".network)"
|
|
local disabled="$(uci -q get wireless."${config}".disabled)"
|
|
|
|
if [ "${mode}" = "sta" ] && [ -n "${network}" ]
|
|
then
|
|
trm_stalist="${trm_stalist} ${config}_${network}"
|
|
if [ -z "${disabled}" ] || [ "${disabled}" = "0" ]
|
|
then
|
|
uci -q set wireless."${config}".disabled=1
|
|
f_log "debug" "prepare ::: config: ${config}, interface: ${network}"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
f_check()
|
|
{
|
|
local ifname cnt=1 mode="${1}"
|
|
trm_ifstatus="false"
|
|
|
|
while [ ${cnt} -le ${trm_maxwait} ]
|
|
do
|
|
if [ "${mode}" = "ap" ]
|
|
then
|
|
trm_ifstatus="$(ubus -S call network.wireless status | jsonfilter -l1 -e '@.*.up')"
|
|
else
|
|
ifname="$(ubus -S call network.wireless status | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
|
|
if [ -n "${ifname}" ]
|
|
then
|
|
trm_ifstatus="$(ubus -S call network.interface dump | jsonfilter -e "@.interface[@.device=\"${ifname}\"].up")"
|
|
fi
|
|
fi
|
|
if [ "${mode}" = "initial" ] || [ "${trm_ifstatus}" = "true" ]
|
|
then
|
|
break
|
|
fi
|
|
cnt=$((cnt+1))
|
|
sleep 1
|
|
done
|
|
f_log "debug" "check ::: mode: ${mode}, name: ${ifname}, status: ${trm_ifstatus}, count: ${cnt}, max-wait: ${trm_maxwait}"
|
|
}
|
|
|
|
# function to write to syslog
|
|
#
|
|
f_log()
|
|
{
|
|
local class="${1}"
|
|
local log_msg="${2}"
|
|
|
|
if [ -n "${log_msg}" ] && ([ "${class}" != "debug" ] || [ ${trm_debug} -eq 1 ])
|
|
then
|
|
logger -t "travelmate-[${trm_ver}] ${class}" "${log_msg}"
|
|
if [ "${class}" = "error" ]
|
|
then
|
|
exit 255
|
|
fi
|
|
fi
|
|
}
|
|
|
|
f_main()
|
|
{
|
|
local ap_list ssid_list config network ssid cnt=1
|
|
local sysver="$(ubus -S call system board | jsonfilter -e '@.release.description')"
|
|
|
|
f_check "initial"
|
|
if [ "${trm_ifstatus}" != "true" ]
|
|
then
|
|
config_load wireless
|
|
config_foreach f_prepare wifi-iface
|
|
if [ -n "$(uci -q changes wireless)" ]
|
|
then
|
|
uci -q commit wireless
|
|
ubus call network reload
|
|
fi
|
|
f_check "ap"
|
|
ap_list="$(ubus -S call network.wireless status | jsonfilter -e '@.*.interfaces[@.config.mode="ap"].ifname')"
|
|
f_log "debug" "main ::: ap-list: ${ap_list}, sta-list: ${trm_stalist}"
|
|
if [ -z "${ap_list}" ] || [ -z "${trm_stalist}" ]
|
|
then
|
|
f_log "error" "status ::: no usable AP/STA configuration found"
|
|
fi
|
|
for ap in ${ap_list}
|
|
do
|
|
while [ ${cnt} -le ${trm_maxretry} ]
|
|
do
|
|
if [ ${trm_iw} -eq 1 ]
|
|
then
|
|
ssid_list="$(${trm_scanner} dev "${ap}" scan 2>/dev/null | \
|
|
awk '/SSID: /{if(!seen[$0]++){printf "\"";for(i=2; i<=NF; i++)if(i==2)printf $i;else printf " "$i;printf "\" "}}')"
|
|
else
|
|
ssid_list="$(${trm_scanner} "${ap}" scan | \
|
|
awk '/ESSID: ".*"/{ORS=" ";if (!seen[$0]++) for(i=2; i<=NF; i++) print $i}')"
|
|
fi
|
|
f_log "debug" "main ::: scan-tool: ${trm_scanner}, ssidlist: ${ssid_list}"
|
|
if [ -n "${ssid_list}" ]
|
|
then
|
|
for sta in ${trm_stalist}
|
|
do
|
|
config="${sta%%_*}"
|
|
network="${sta##*_}"
|
|
ssid="\"$(uci -q get wireless."${config}".ssid)\""
|
|
if [ -n "$(printf "${ssid_list}" | grep -Fo "${ssid}")" ]
|
|
then
|
|
uci -q set wireless."${config}".disabled=0
|
|
uci -q commit wireless
|
|
ubus call network reload
|
|
f_check "sta"
|
|
if [ "${trm_ifstatus}" = "true" ]
|
|
then
|
|
f_log "info " "status ::: wwan interface connected to uplink ${ssid} (${cnt}/${trm_maxretry}, ${sysver})"
|
|
sleep 5
|
|
return 0
|
|
else
|
|
uci -q set wireless."${config}".disabled=1
|
|
uci -q commit wireless
|
|
ubus call network reload
|
|
f_log "info " "status ::: wwan interface can't connect to uplink ${ssid} (${cnt}/${trm_maxretry}, ${sysver})"
|
|
fi
|
|
fi
|
|
done
|
|
else
|
|
f_log "info " "status ::: empty uplink list (${cnt}/${trm_maxretry}, ${sysver})"
|
|
fi
|
|
cnt=$((cnt+1))
|
|
sleep 5
|
|
done
|
|
done
|
|
f_log "info " "status ::: no wwan uplink found (${sysver})"
|
|
else
|
|
f_log "info " "status ::: wwan uplink still connected (${sysver})"
|
|
fi
|
|
}
|
|
|
|
if [ "${trm_procd}" = "true" ]
|
|
then
|
|
f_envload
|
|
f_main
|
|
fi
|
|
exit 0
|