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.
337 lines
12 KiB
337 lines
12 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/>.
|
|
|
|
# set initial defaults
|
|
#
|
|
LC_ALL=C
|
|
PATH="/usr/sbin:/usr/bin:/sbin:/bin"
|
|
trm_ver="1.0.0"
|
|
trm_sysver="unknown"
|
|
trm_enabled=0
|
|
trm_debug=0
|
|
trm_automatic=1
|
|
trm_maxretry=3
|
|
trm_maxwait=30
|
|
trm_timeout=60
|
|
trm_iwinfo="$(command -v iwinfo)"
|
|
trm_radio=""
|
|
trm_rtfile="/tmp/trm_runtime.json"
|
|
trm_wpa="$(command -v wpa_supplicant)"
|
|
|
|
# f_envload: load travelmate environment
|
|
#
|
|
f_envload()
|
|
{
|
|
local sys_call sys_desc sys_model sys_ver
|
|
|
|
# get system information
|
|
#
|
|
sys_call="$(ubus -S call system board 2>/dev/null)"
|
|
if [ -n "${sys_call}" ]
|
|
then
|
|
sys_desc="$(printf '%s' "${sys_call}" | jsonfilter -e '@.release.description')"
|
|
sys_model="$(printf '%s' "${sys_call}" | jsonfilter -e '@.model')"
|
|
sys_ver="$(cat /etc/turris-version 2>/dev/null)"
|
|
if [ -n "${sys_ver}" ]
|
|
then
|
|
sys_desc="${sys_desc}/${sys_ver}"
|
|
fi
|
|
trm_sysver="${sys_model}, ${sys_desc}"
|
|
fi
|
|
|
|
# initialize lists
|
|
#
|
|
trm_devlist=""
|
|
trm_stalist=""
|
|
trm_radiolist=""
|
|
|
|
# load uci config and check 'enabled' option
|
|
#
|
|
option_cb()
|
|
{
|
|
local option="${1}"
|
|
local value="${2}"
|
|
eval "${option}=\"${value}\""
|
|
}
|
|
config_load travelmate
|
|
|
|
if [ ${trm_enabled} -ne 1 ]
|
|
then
|
|
f_log "info " "travelmate is currently disabled, please set 'trm_enabled' to '1' to use this service"
|
|
exit 0
|
|
fi
|
|
|
|
# check eap capabilities
|
|
#
|
|
trm_eap="$("${trm_wpa}" -veap >/dev/null 2>&1; printf "%u" ${?})"
|
|
}
|
|
|
|
# f_prepare: gather radio information & bring down all STA interfaces
|
|
#
|
|
f_prepare()
|
|
{
|
|
local config="${1}"
|
|
local mode="$(uci -q get wireless."${config}".mode)"
|
|
local network="$(uci -q get wireless."${config}".network)"
|
|
local radio="$(uci -q get wireless."${config}".device)"
|
|
local disabled="$(uci -q get wireless."${config}".disabled)"
|
|
local eaptype="$(uci -q get wireless."${config}".eap_type)"
|
|
|
|
if ([ -z "${trm_radio}" ] || [ "${trm_radio}" = "${radio}" ]) && \
|
|
[ -z "$(printf "%s" "${trm_radiolist}" | grep -Fo " ${radio}")" ]
|
|
then
|
|
trm_radiolist="${trm_radiolist} ${radio}"
|
|
fi
|
|
if [ "${mode}" = "sta" ] && [ "${network}" = "${trm_iface}" ]
|
|
then
|
|
if [ -z "${disabled}" ] || [ "${disabled}" = "0" ]
|
|
then
|
|
uci -q set wireless."${config}".disabled=1
|
|
fi
|
|
if [ -z "${eaptype}" ] || [ ${trm_eap} -eq 0 ]
|
|
then
|
|
trm_stalist="${trm_stalist} ${config}_${radio}"
|
|
fi
|
|
fi
|
|
f_log "debug" "prepare: ${config}, mode: ${mode}, network: ${network}, radio: ${radio}, eap: ${trm_eap}, disabled: ${disabled}"
|
|
}
|
|
|
|
# f_check: check interface status
|
|
#
|
|
f_check()
|
|
{
|
|
local ifname radio status cnt=1 mode="${1}"
|
|
|
|
trm_ifstatus="false"
|
|
ubus call network reload
|
|
while [ ${cnt} -le ${trm_maxwait} ]
|
|
do
|
|
status="$(ubus -S call network.wireless status 2>/dev/null)"
|
|
if [ -n "${status}" ]
|
|
then
|
|
if [ "${mode}" = "dev" ]
|
|
then
|
|
for radio in ${trm_radiolist}
|
|
do
|
|
trm_ifstatus="$(printf "%s" "${status}" | jsonfilter -l1 -e "@.${radio}.up")"
|
|
if [ "${trm_ifstatus}" = "true" ]
|
|
then
|
|
trm_devlist="${trm_devlist} ${radio}"
|
|
else
|
|
trm_devlist=""
|
|
break
|
|
fi
|
|
done
|
|
ifname="${trm_devlist}"
|
|
else
|
|
ifname="$(printf "%s" "${status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
|
|
if [ -n "${ifname}" ]
|
|
then
|
|
trm_ifstatus="$(ubus -S call network.interface dump 2>/dev/null | jsonfilter -l1 -e "@.interface[@.device=\"${ifname}\"].up")"
|
|
fi
|
|
fi
|
|
if [ "${mode}" = "initial" ] || [ "${trm_ifstatus}" = "true" ]
|
|
then
|
|
break
|
|
fi
|
|
fi
|
|
cnt=$((cnt+1))
|
|
sleep 1
|
|
done
|
|
f_log "debug" "check: ${mode}, name: ${ifname}, status: ${trm_ifstatus}, count: ${cnt}, max-wait: ${trm_maxwait}, automatic: ${trm_automatic}"
|
|
}
|
|
|
|
# f_jsnupdate: update runtime information
|
|
#
|
|
f_jsnupdate()
|
|
{
|
|
local iface="${1}" radio="${2}" essid="${3:-"-"}" bssid="${4:-"-"}"
|
|
|
|
json_init
|
|
json_add_object "data"
|
|
json_add_string "travelmate_version" "${trm_ver}"
|
|
json_add_string "station_connection" "${trm_ifstatus}"
|
|
json_add_string "station_id" "${essid}/${bssid}"
|
|
json_add_string "station_interface" "${iface}"
|
|
json_add_string "station_radio" "${radio}"
|
|
json_add_string "last_rundate" "$(/bin/date "+%d.%m.%Y %H:%M:%S")"
|
|
json_add_string "system" "${trm_sysver}"
|
|
json_close_object
|
|
json_dump > "${trm_rtfile}"
|
|
}
|
|
|
|
# f_status: output runtime information
|
|
#
|
|
f_status()
|
|
{
|
|
local key keylist value
|
|
|
|
if [ -s "${trm_rtfile}" ]
|
|
then
|
|
printf "%s\n" "::: travelmate runtime information"
|
|
json_load "$(cat "${trm_rtfile}" 2>/dev/null)"
|
|
json_select data
|
|
json_get_keys keylist
|
|
for key in ${keylist}
|
|
do
|
|
json_get_var value "${key}"
|
|
printf " %-18s : %s\n" "${key}" "${value}"
|
|
done
|
|
fi
|
|
}
|
|
|
|
# f_log: write to syslog, exit on error
|
|
#
|
|
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 [ "${class}" = "error" ]
|
|
then
|
|
logger -t "travelmate-[${trm_ver}] ${class}" "Please check 'https://github.com/openwrt/packages/blob/master/net/travelmate/files/README.md' (${trm_sysver})"
|
|
exit 255
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# f_main: main function for connection handling
|
|
#
|
|
f_main()
|
|
{
|
|
local dev config raw_scan essid_list bssid_list sta_essid sta_bssid sta_radio sta_iface cnt=1
|
|
|
|
f_check "initial"
|
|
if [ "${trm_ifstatus}" != "true" ]
|
|
then
|
|
> "${trm_rtfile}"
|
|
config_load wireless
|
|
config_foreach f_prepare wifi-iface
|
|
if [ -n "$(uci -q changes wireless)" ]
|
|
then
|
|
uci -q commit wireless
|
|
fi
|
|
f_check "dev"
|
|
f_log "debug" "main: ${trm_devlist}, sta-list: ${trm_stalist}"
|
|
for dev in ${trm_devlist}
|
|
do
|
|
cnt=1
|
|
if [ -z "$(printf "%s" "${trm_stalist}" | grep -Fo "_${dev}")" ]
|
|
then
|
|
continue
|
|
fi
|
|
while [ ${trm_maxretry} -eq 0 ] || [ ${cnt} -le ${trm_maxretry} ]
|
|
do
|
|
raw_scan="$(${trm_iwinfo} "${dev}" scan)"
|
|
essid_list="$(printf "%s" "${raw_scan}" | awk '/ESSID: "/{ORS=" ";if (!seen[$0]++) for(i=2; i<=NF; i++) print $i}')"
|
|
bssid_list="$(printf "%s" "${raw_scan}" | awk '/Address: /{ORS=" ";if (!seen[$5]++) print $5}')"
|
|
f_log "debug" "main: ${trm_iwinfo}, dev: ${dev}"
|
|
f_log "debug" "main: ${essid_list}"
|
|
f_log "debug" "main: ${bssid_list}"
|
|
if [ -n "${essid_list}" ] || [ -n "${bssid_list}" ]
|
|
then
|
|
for sta in ${trm_stalist}
|
|
do
|
|
config="${sta%%_*}"
|
|
sta_radio="${sta##*_}"
|
|
sta_essid="$(uci -q get wireless."${config}".ssid)"
|
|
sta_bssid="$(uci -q get wireless."${config}".bssid)"
|
|
sta_iface="$(uci -q get wireless."${config}".network)"
|
|
if (([ -n "$(printf "%s" "${essid_list}" | grep -Fo "\"${sta_essid}\"")" ] && [ -z "${sta_bssid}" ]) || \
|
|
([ -n "$(printf "%s" "${bssid_list}" | grep -Fo "${sta_bssid}")" ] && [ -z "$(printf "%s" "${essid_list}" | grep -Fo "\"${sta_essid}\"")" ]) || \
|
|
([ -n "$(printf "%s" "${essid_list}" | grep -Fo "\"${sta_essid}\"")" ] && [ -n "$(printf "%s" "${bssid_list}" | grep -Fo "${sta_bssid}")" ])) && \
|
|
[ "${dev}" = "${sta_radio}" ]
|
|
then
|
|
uci -q set wireless."${config}".disabled=0
|
|
f_check "sta"
|
|
if [ "${trm_ifstatus}" = "true" ]
|
|
then
|
|
uci -q commit wireless
|
|
f_log "info " "interface '${sta_iface}' on '${sta_radio}' connected to uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' (${trm_sysver})"
|
|
f_jsnupdate "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
return 0
|
|
elif [ ${trm_maxretry} -ne 0 ] && [ ${cnt} -eq ${trm_maxretry} ]
|
|
then
|
|
uci -q set wireless."${config}".disabled=1
|
|
if [ -n "${sta_essid}" ]
|
|
then
|
|
uci -q set wireless."${config}".ssid="${sta_essid}_err"
|
|
fi
|
|
if [ -n "${sta_bssid}" ]
|
|
then
|
|
uci -q set wireless."${config}".bssid="${sta_bssid}_err"
|
|
fi
|
|
uci -q commit wireless
|
|
f_check "dev"
|
|
f_log "info " "can't connect to uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' (${cnt}/${trm_maxretry}), uplink disabled (${trm_sysver})"
|
|
else
|
|
if [ ${trm_maxretry} -eq 0 ]
|
|
then
|
|
cnt=0
|
|
fi
|
|
uci -q revert wireless
|
|
f_check "dev"
|
|
f_log "info " "can't connect to uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' (${cnt}/${trm_maxretry}) (${trm_sysver})"
|
|
fi
|
|
f_jsnupdate "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
fi
|
|
done
|
|
fi
|
|
cnt=$((cnt+1))
|
|
sleep 5
|
|
done
|
|
done
|
|
if [ ! -s "${trm_rtfile}" ]
|
|
then
|
|
trm_ifstatus="false"
|
|
f_jsnupdate "n/a" "n/a"
|
|
fi
|
|
else
|
|
if [ ! -s "${trm_rtfile}" ]
|
|
then
|
|
config="$(ubus -S call network.wireless status | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].section')"
|
|
sta_radio="$(uci -q get wireless."${config}".device)"
|
|
sta_essid="$(uci -q get wireless."${config}".ssid)"
|
|
sta_bssid="$(uci -q get wireless."${config}".bssid)"
|
|
sta_iface="$(uci -q get wireless."${config}".network)"
|
|
f_jsnupdate "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# source required system libraries
|
|
#
|
|
if [ -r "/lib/functions.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]
|
|
then
|
|
. "/lib/functions.sh"
|
|
. "/usr/share/libubox/jshn.sh"
|
|
else
|
|
f_log "error" "system libraries not found"
|
|
fi
|
|
|
|
# handle different travelmate actions
|
|
#
|
|
f_envload
|
|
case "${1}" in
|
|
status)
|
|
f_status
|
|
;;
|
|
*)
|
|
f_main
|
|
while [ ${trm_automatic} -eq 1 ]
|
|
do
|
|
sleep ${trm_timeout}
|
|
f_envload
|
|
f_main
|
|
done
|
|
;;
|
|
esac
|
|
exit 0
|