# 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
+# set initial defaults
#
LC_ALL=C
PATH="/usr/sbin:/usr/bin:/sbin:/bin"
-trm_pid="${$}"
-trm_ver="0.2.7"
+trm_ver="0.4.1-2"
+trm_sysver="$(ubus -S call system board | jsonfilter -e '@.release.description')"
+trm_enabled=1
trm_debug=0
-trm_loop=30
+trm_active=0
+trm_maxwait=20
trm_maxretry=3
+trm_timeout=60
trm_iw=1
-trm_device=""
-# function to prepare all relevant AP and STA interfaces
+# f_envload: load travelmate environment
#
-f_prepare()
+f_envload()
{
- local config="${1}"
- local mode="$(uci -q get wireless."${config}".mode)"
- local device="$(uci -q get wireless."${config}".device)"
- local network="$(uci -q get wireless."${config}".network)"
- local disabled="$(uci -q get wireless."${config}".disabled)"
+ # source required system libraries
+ #
+ if [ -r "/lib/functions.sh" ]
+ then
+ . "/lib/functions.sh"
+ else
+ f_log "error" "required system library not found"
+ fi
- if [ "${mode}" = "ap" ] && [ -n "${network}" ] &&
- ([ -z "${trm_device}" ] || [ "${trm_device}" = "${device}" ])
+ # load uci config and check 'enabled' option
+ #
+ option_cb()
+ {
+ local option="${1}"
+ local value="${2}"
+ eval "${option}=\"${value}\""
+ }
+ config_load travelmate
+
+ if [ ${trm_enabled} -ne 1 ]
then
- f_ifname "${device}"
- if [ -z "${disabled}" ] || [ "${disabled}" = "1" ]
- then
- f_set "none" "${config}" "${network}" "up"
- fi
- elif [ "${mode}" = "sta" ] && [ -n "${network}" ]
+ f_log "info " "travelmate is currently disabled, please set 'trm_enabled' to '1' to use this service"
+ exit 0
+ fi
+
+ # check for preferred wireless tool
+ #
+ if [ ${trm_iw} -eq 1 ]
then
- trm_stalist="${trm_stalist} ${config}_${network}"
- if [ -z "${disabled}" ] || [ "${disabled}" = "0" ]
- then
- f_set "none" "${config}" "${network}" "down"
- fi
+ trm_scanner="$(which iw)"
+ else
+ trm_scanner="$(which iwinfo)"
+ fi
+ if [ -z "${trm_scanner}" ]
+ then
+ f_log "error" "no wireless tool for wlan scanning found, please install 'iw' or 'iwinfo'"
fi
}
-# function to set different wlan interface status
+# f_prepare: gather radio information & bring down all STA interfaces
#
-f_set()
+f_prepare()
{
- local change="${1}"
- local config="${2}"
- local interface="${3}"
- local command="${4}"
+ local config="${1}"
+ local mode="$(uci -q get wireless."${config}".mode)"
+ local radio="$(uci -q get wireless."${config}".device)"
+ local disabled="$(uci -q get wireless."${config}".disabled)"
- if [ "${command}" = "up" ]
+ if [ "${mode}" = "ap" ] && ([ -z "${disabled}" ] || [ "${disabled}" = "0" ]) && \
+ ([ -z "${trm_radio}" ] || [ "${trm_radio}" = "${radio}" ])
then
- uci -q set wireless."${config}".disabled=0
- ubus call network.interface."${interface}" "${command}"
- trm_checklist="${trm_checklist} ${interface}"
- elif [ "${command}" = "down" ]
+ trm_radiolist="${trm_radiolist} ${radio}"
+ elif [ "${mode}" = "sta" ]
then
- uci -q set wireless."${config}".disabled=1
- ubus call network.interface."${interface}" "${command}"
- fi
-
- f_log "debug" "set ::: change: ${change}, config: ${config}, interface: ${interface}, command: ${command}, checklist: ${trm_checklist}, uci-changes: $(uci -q changes wireless)"
- if [ -n "$(uci -q changes wireless)" ]
- then
- if [ "${change}" = "commit" ]
- then
- uci -q commit wireless
- ubus call network reload
- f_check
- elif [ "${change}" = "partial" ]
- then
- ubus call network reload
- f_check
- elif [ "${change}" = "defer" ]
- then
- uci -q revert wireless
- elif [ "${change}" = "revert" ]
+ trm_stalist="${trm_stalist} ${config}_${radio}"
+ if [ -z "${disabled}" ] || [ "${disabled}" = "0" ]
then
- uci -q revert wireless
- ubus call network reload
- f_check
+ uci -q set wireless."${config}".disabled=1
fi
fi
+ f_log "debug" "mode: ${mode}, radio: ${radio}, config: ${config}, disabled: ${disabled}"
}
-# function to get ap ifnames by ubus call
+# f_check: check interface status
#
-f_ifname()
+f_check()
{
- local device="${1}"
- local name cfg
+ local ifname radio cnt=1 mode="${1}"
+ trm_ifstatus="false"
- json_load "$(ubus -S call network.wireless status)"
- json_select "${device}"
- json_get_keys if_list interfaces
- json_select interfaces
- for iface in ${if_list}
+ while [ ${cnt} -le ${trm_maxwait} ]
do
- json_select "${iface}"
- json_get_var name ifname
- json_select "config"
- json_get_var cfg mode
- if [ -n "${name}" ] && [ "${cfg}" = "ap" ]
+ if [ "${mode}" = "ap" ]
+ then
+ for radio in ${trm_radiolist}
+ do
+ trm_ifstatus="$(ubus -S call network.wireless status | jsonfilter -e "@.${radio}.up")"
+ if [ "${trm_ifstatus}" = "true" ]
+ then
+ trm_aplist="${trm_aplist} $(ubus -S call network.wireless status | jsonfilter -e "@.${radio}.interfaces[@.config.mode=\"ap\"].ifname")_${radio}"
+ ifname="${trm_aplist}"
+ else
+ trm_aplist=""
+ trm_ifstatus="false"
+ break
+ fi
+ done
+ 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
- trm_aplist="${trm_aplist} ${name}"
+ break
fi
+ cnt=$((cnt+1))
+ sleep 1
done
+ f_log "debug" "mode: ${mode}, name: ${ifname}, status: ${trm_ifstatus}, count: ${cnt}, max-wait: ${trm_maxwait}"
}
-# function to check interface status on "up" event
+# f_active: keep travelmate in an active state
#
-f_check()
+f_active()
{
- local interface value
- local cnt=0
-
- for interface in ${trm_checklist}
- do
- while [ $((cnt)) -lt 15 ]
- do
- json_load "$(ubus -S call network.interface."${interface}" status)"
- json_get_var trm_status up
- if [ "${trm_status}" = "1" ] || [ -n "${trm_uplink}" ]
- then
- f_log "debug" "check::: interface: ${interface}, status: ${trm_status}, uplink-cfg: ${trm_uplink}, uplink-ssid: ${trm_ssid}, loop-cnt: ${cnt}, error-cnt: $((trm_count_${trm_config}))"
- json_cleanup
- break
- fi
- cnt=$((cnt+1))
- sleep 1
- done
- done
- if [ -n "${trm_uplink}" ] && [ "${trm_status}" = "0" ]
- then
- ubus call network reload
- eval "trm_count_${trm_uplink}=\$((trm_count_${trm_uplink}+1))"
- trm_checklist=""
- trm_uplink=""
- f_log "info" "uplink ${trm_ssid} get lost"
- elif [ -z "${trm_uplink}" ] && [ -n "${trm_checklist}" ]
+ if [ ${trm_active} -eq 1 ]
then
- trm_checklist=""
+ (sleep ${trm_timeout}; /etc/init.d/travelmate start >/dev/null 2>&1) &
fi
}
-# function to write to syslog
+# f_log: function to write to syslog
#
f_log()
{
local class="${1}"
local log_msg="${2}"
- if [ -n "${log_msg}" ] && ([ "${class}" != "debug" ] || ([ "${class}" = "debug" ] && [ $((trm_debug)) -eq 1 ]))
+ if [ -n "${log_msg}" ] && ([ "${class}" != "debug" ] || [ ${trm_debug} -eq 1 ])
then
- logger -t "travelmate-${trm_ver}[${trm_pid}] ${class}" "${log_msg}" 2>&1
+ logger -t "travelmate-[${trm_ver}] ${class}" "${log_msg}"
+ if [ "${class}" = "error" ]
+ then
+ logger -t "travelmate-[${trm_ver}] ${class}" "Please check the readme 'https://github.com/openwrt/packages/blob/master/net/travelmate/files/README.md' (${trm_sysver})"
+ f_active
+ exit 255
+ fi
fi
}
-# source required system libraries
+# f_main: main function for connection handling
#
-if [ -r "/lib/functions.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]
-then
- . "/lib/functions.sh"
- . "/usr/share/libubox/jshn.sh"
- json_init
-else
- f_log "error" "required system libraries not found"
- exit 255
-fi
-
-# load uci config and check 'enabled' option
-#
-option_cb()
+f_main()
{
- local option="${1}"
- local value="${2}"
- eval "${option}=\"${value}\""
-}
-
-config_load travelmate
+ local ssid_list config ap_radio sta_radio ssid cnt=1
-if [ "${trm_enabled}" != "1" ]
-then
- f_log "info" "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" "no wireless tool for wlan scanning found, please install 'iw' or 'iwinfo'"
- exit 1
-fi
-
-# infinitive loop to establish and track STA uplink connections
-#
-while true
-do
- if [ -z "${trm_uplink}" ] || [ "${trm_status}" = "0" ]
+ f_check "initial"
+ if [ "${trm_ifstatus}" != "true" ]
then
- trm_aplist=""
- trm_stalist=""
config_load wireless
config_foreach f_prepare wifi-iface
- f_set "commit"
- if [ -z "${trm_aplist}" ]
+ if [ -n "$(uci -q changes wireless)" ]
+ then
+ uci -q commit wireless
+ ubus call network reload
+ fi
+ f_check "ap"
+ f_log "debug" "ap-list: ${trm_aplist}, sta-list: ${trm_stalist}"
+ if [ -z "${trm_aplist}" ] || [ -z "${trm_stalist}" ]
then
- f_log "error" "no usable AP configuration found, please check '/etc/config/wireless'"
- exit 1
+ f_log "error" "no usable AP/STA configuration found"
fi
for ap in ${trm_aplist}
do
- ubus -t 10 wait_for hostapd."${ap}"
- if [ $((trm_iw)) -eq 1 ]
+ cnt=1
+ ap_radio="${ap##*_}"
+ ap="${ap%%_*}"
+ if [ -z "$(printf "${trm_stalist}" | grep -Fo "_${ap_radio}")" ]
then
- trm_ssidlist="$(${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
- trm_ssidlist="$(${trm_scanner} "${ap}" scan | awk '/ESSID: ".*"/{ORS=" ";if (!seen[$0]++) for(i=2; i<=NF; i++) print $i}')"
+ continue
fi
- f_log "debug" "main ::: scan-tool: ${trm_scanner}, aplist: ${trm_aplist}, ssidlist: ${trm_ssidlist}"
- if [ -n "${trm_ssidlist}" ]
- then
- if [ -z "${trm_stalist}" ]
+ while [ ${cnt} -le ${trm_maxretry} ]
+ do
+ if [ ${trm_iw} -eq 1 ]
then
- f_log "error" "no usable STA configuration found, please check '/etc/config/wireless'"
- exit 1
+ ssid_list="$(${trm_scanner} dev "${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
- for sta in ${trm_stalist}
- do
- trm_config="${sta%%_*}"
- trm_network="${sta##*_}"
- trm_ssid="\"$(uci -q get wireless."${trm_config}".ssid)\""
- if [ $((trm_count_${trm_config})) -lt $((trm_maxretry)) ] || [ $((trm_maxretry)) -eq 0 ]
- then
- if [ -n "$(printf "${trm_ssidlist}" | grep -Fo "${trm_ssid}")" ]
+ f_log "debug" "scanner: ${trm_scanner}, ap: ${ap}, ssids: ${ssid_list}"
+ if [ -n "${ssid_list}" ]
+ then
+ for sta in ${trm_stalist}
+ do
+ config="${sta%%_*}"
+ sta_radio="${sta##*_}"
+ ssid="\"$(uci -q get wireless."${config}".ssid)\""
+ if [ -n "$(printf "${ssid_list}" | grep -Fo "${ssid}")" ] && [ "${ap_radio}" = "${sta_radio}" ]
then
- f_set "partial" "${trm_config}" "${trm_network}" "up"
- if [ "${trm_status}" = "1" ]
+ uci -q set wireless."${config}".disabled=0
+ uci -q commit wireless
+ ubus call network reload
+ f_check "sta"
+ if [ "${trm_ifstatus}" = "true" ]
then
- trm_checklist="${trm_network}"
- trm_uplink="${trm_config}"
- f_set "defer"
- f_log "info" "wwan interface connected to uplink ${trm_ssid}"
- break 2
+ f_log "info " "wwan interface connected to uplink ${ssid} (${cnt}/${trm_maxretry}, ${trm_sysver})"
+ sleep 5
+ return 0
else
- f_set "revert"
- eval "trm_count_${trm_config}=\$((trm_count_${trm_config}+1))"
+ uci -q set wireless."${config}".disabled=1
+ uci -q commit wireless
+ ubus call network reload
+ f_log "info " "wwan interface can't connect to uplink ${ssid} (${cnt}/${trm_maxretry}, ${trm_sysver})"
fi
fi
- elif [ $((trm_count_${trm_config})) -eq $((trm_maxretry)) ] && [ $((trm_maxretry)) -ne 0 ]
- then
- eval "trm_count_${trm_config}=\$((trm_count_${trm_config}+1))"
- f_log "info" "uplink ${trm_ssid} disabled due to permanent connection failures"
- fi
- done
- fi
- sleep 5
+ done
+ else
+ f_log "info " "empty uplink list (${cnt}/${trm_maxretry}, ${trm_sysver})"
+ fi
+ cnt=$((cnt+1))
+ sleep 5
+ done
done
- else
- f_check
- if [ -n "${trm_uplink}" ]
- then
- sleep ${trm_loop}
- fi
fi
-done
+}
+
+f_envload
+f_main
+f_active
+exit 0
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