travelmate: release 1.1.0

* checks continuously the signal quality for conditional
  uplink (dis-) connections
* captive portal detection with internet online check and
  a 'heartbeat' function to keep the uplink connection up & running

Signed-off-by: Dirk Brenken <dev@brenken.org>
This commit is contained in:
Dirk Brenken
2018-02-19 21:59:03 +01:00
parent f714c9071d
commit 76e068dc2d
5 changed files with 163 additions and 113 deletions
+124 -76
View File
@@ -10,17 +10,22 @@
#
LC_ALL=C
PATH="/usr/sbin:/usr/bin:/sbin:/bin"
trm_ver="1.0.2"
trm_ver="1.1.0"
trm_sysver="unknown"
trm_enabled=0
trm_debug=0
trm_automatic=1
trm_captive=1
trm_captiveurl="http://captive.apple.com"
trm_minquality=30
trm_maxretry=3
trm_maxwait=30
trm_timeout=60
trm_iwinfo="$(command -v iwinfo)"
trm_radio=""
trm_connection=""
trm_rtfile="/tmp/trm_runtime.json"
trm_fetch="$(command -v uclient-fetch)"
trm_iwinfo="$(command -v iwinfo)"
trm_wpa="$(command -v wpa_supplicant)"
# load travelmate environment
@@ -44,7 +49,7 @@ f_envload()
trm_sysver="${sys_model}, ${sys_desc}"
fi
# initialize lists
# initialize variables
#
trm_devlist=""
trm_stalist=""
@@ -76,11 +81,11 @@ f_envload()
f_prep()
{
local config="${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)"
local mode="$(uci_get wireless "${config}" mode)"
local network="$(uci_get wireless "${config}" network)"
local radio="$(uci_get wireless "${config}" device)"
local disabled="$(uci_get wireless "${config}" disabled)"
local eaptype="$(uci_get wireless "${config}" eap_type)"
if ([ -z "${trm_radio}" ] || [ "${trm_radio}" = "${radio}" ]) && \
[ -z "$(printf "%s" "${trm_radiolist}" | grep -Fo " ${radio}")" ]
@@ -91,7 +96,7 @@ f_prep()
then
if [ -z "${disabled}" ] || [ "${disabled}" = "0" ]
then
uci -q set wireless."${config}".disabled=1
uci_set wireless "${config}" disabled 1
fi
if [ -z "${eaptype}" ] || [ ${trm_eap} -eq 0 ]
then
@@ -105,10 +110,14 @@ f_prep()
#
f_check()
{
local ifname radio dev_status cnt=1 mode="${1}" status="${2:-"false"}"
local ifname radio dev_status config sta_iface sta_radio sta_essid sta_bssid heartbeat cnt=1 mode="${1}" status="${2:-"false"}"
trm_ifquality=0
trm_ifstatus="false"
ubus call network reload
if [ "${mode}" != "initial" ]
then
ubus call network reload
fi
while [ ${cnt} -le ${trm_maxwait} ]
do
dev_status="$(ubus -S call network.wireless status 2>/dev/null)"
@@ -136,44 +145,60 @@ f_check()
fi
else
ifname="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
if [ -n "${ifname}" ]
config="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].section')"
if [ -n "${ifname}" ] && [ -n "${config}" ]
then
trm_ifstatus="$(ubus -S call network.interface dump 2>/dev/null | jsonfilter -l1 -e "@.interface[@.device=\"${ifname}\"].up")"
sta_iface="$(uci_get wireless "${config}" network)"
sta_radio="$(uci_get wireless "${config}" device)"
sta_essid="$(uci_get wireless "${config}" ssid)"
sta_bssid="$(uci_get wireless "${config}" bssid)"
trm_ifquality="$(${trm_iwinfo} ${ifname} info 2>/dev/null | awk -F "[\/| ]" '/Link Quality:/{printf "%i\n", (100 / $NF * $(NF-1)) }')"
if [ ${trm_ifquality} -ge ${trm_minquality} ]
then
trm_ifstatus="$(ubus -S call network.interface dump 2>/dev/null | jsonfilter -l1 -e "@.interface[@.device=\"${ifname}\"].up")"
elif [ "${mode}" = "initial" ] && [ ${trm_ifquality} -lt ${trm_minquality} ]
then
trm_connection=""
f_log "info" "uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' is out of range (${trm_ifquality}/${trm_minquality}), uplink disconnected (${trm_sysver})"
fi
fi
fi
if [ "${mode}" = "initial" ] || [ "${trm_ifstatus}" = "true" ]
then
if [ "${mode}" != "initial" ] && [ "${trm_ifstatus}" != "${status}" ]
if ([ "${trm_ifstatus}" != "true" ] && [ "${trm_ifstatus}" != "${status}" ]) || [ ${trm_ifquality} -lt ${trm_minquality} ]
then
f_jsnup
fi
if [ "${mode}" = "initial" ] && [ "${trm_captive}" -eq 1 ] && [ "${trm_ifstatus}" = "true" ]
then
heartbeat="$(${trm_fetch} --timeout=1 --spider "${trm_captiveurl}" 2>&1 | awk '/^Redirected/{printf "%s" "cp \047"$NF"\047";exit}/^Download completed/{printf "%s" "net ok";exit}/^Failed/{printf "%s" "net nok";exit}')"
if ([ -n "${heartbeat}" ] && [ -z "${trm_connection}" ]) || [ "${trm_connection%/*}" != "${heartbeat}" ]
then
trm_connection="${heartbeat}/${trm_ifquality}"
f_jsnup "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
fi
fi
break
fi
fi
cnt=$((cnt+1))
sleep 1
done
f_log "debug" "f_check::: mode: ${mode}, name: ${ifname}, status: ${trm_ifstatus}, cnt: ${cnt}, max-wait: ${trm_maxwait}, automatic: ${trm_automatic}"
f_log "debug" "f_check::: mode: ${mode}, name: ${ifname:-"-"}, status: ${trm_ifstatus}, quality: ${trm_ifquality}, connection: ${trm_connection:-"-"}, cnt: ${cnt}, max-wait: ${trm_maxwait}, min-quality: ${trm_minquality}, captive: ${trm_captive}, automatic: ${trm_automatic}"
}
# update runtime information
#
f_jsnup()
{
local status iface="${1}" radio="${2}" essid="${3}" bssid="${4}"
local status="${trm_ifstatus}" iface="${1}" radio="${2}" essid="${3}" bssid="${4}"
if [ "${trm_ifstatus}" = "true" ]
if [ "${status}" = "true" ]
then
status="connected"
elif [ "${trm_ifstatus}" = "false" ]
status="connected (${trm_connection:-"-"})"
elif [ "${status}" = "false" ]
then
status="not connected"
elif [ "${trm_ifstatus}" = "running" ]
then
status="running"
elif [ "${trm_ifstatus}" = "error" ]
then
status="error"
fi
json_init
@@ -181,8 +206,8 @@ f_jsnup()
json_add_string "travelmate_status" "${status}"
json_add_string "travelmate_version" "${trm_ver}"
json_add_string "station_id" "${essid:-"-"}/${bssid:-"-"}"
json_add_string "station_interface" "${iface:-"n/a"}"
json_add_string "station_radio" "${radio:-"n/a"}"
json_add_string "station_interface" "${iface:-"-"}"
json_add_string "station_radio" "${radio:-"-"}"
json_add_string "last_rundate" "$(/bin/date "+%d.%m.%Y %H:%M:%S")"
json_add_string "system" "${trm_sysver}"
json_close_object
@@ -213,7 +238,7 @@ f_log()
#
f_main()
{
local dev config raw_scan essid_list bssid_list sta_essid sta_bssid sta_radio sta_iface cnt=1
local dev config combo_list scan scan_essid scan_bssid scan_quality sta sta_essid sta_bssid sta_radio sta_iface cnt=1 IFS=" "
f_check "initial"
if [ "${trm_ifstatus}" != "true" ]
@@ -222,7 +247,7 @@ f_main()
config_foreach f_prep wifi-iface
if [ -n "$(uci -q changes wireless)" ]
then
uci -q commit wireless
uci_commit wireless
fi
f_check "dev" "running"
f_log "debug" "f_main ::: iwinfo: ${trm_iwinfo}, eap_rc: ${trm_eap}, dev_list: ${trm_devlist}, sta_list: ${trm_stalist}"
@@ -235,57 +260,80 @@ f_main()
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" "f_main ::: dev: ${dev}, ssid_list: ${essid_list}, bssid_list: ${bssid_list}"
if [ -n "${essid_list}" ] || [ -n "${bssid_list}" ]
combo_list="$(${trm_iwinfo} "${dev}" scan 2>/dev/null | awk 'BEGIN{FS="[/ ]"}/Address:/{var1=$NF}/ESSID:/{var2="";for(i=12;i<=NF;i++)if(var2==""){var2=$i}else{var2=var2" "$i}}/Quality:/{printf "%i,%s,%s\n",(100/$NF*$(NF-1)),var1,var2}' | sort -rn | awk '{ORS=",";print $0}')"
f_log "debug" "f_main ::: dev: ${dev}, combo_list: ${combo_list}"
if [ -n "${combo_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 [ "${trm_ifstatus}" = "true" ]
sta_essid="$(uci_get wireless "${config}" ssid)"
sta_bssid="$(uci_get wireless "${config}" bssid)"
sta_iface="$(uci_get wireless "${config}" network)"
IFS=","
for scan in ${combo_list}
do
if [ -z "${scan_quality}" ]
then
uci -q commit wireless
f_log "info" "interface '${sta_iface}' on '${sta_radio}' connected to uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' (${trm_sysver})"
f_jsnup "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
return 0
elif [ ${trm_maxretry} -ne 0 ] && [ ${cnt} -eq ${trm_maxretry} ]
scan_quality="${scan}"
elif [ -z "${scan_bssid}" ]
then
uci -q set wireless."${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})"
scan_bssid="${scan}"
elif [ -z "${scan_essid}" ]
then
scan_essid="${scan}"
fi
f_jsnup "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
fi
if [ -n "${scan_quality}" ] && [ -n "${scan_bssid}" ] && [ -n "${scan_essid}" ]
then
if [ ${scan_quality} -ge ${trm_minquality} ]
then
if (([ "${scan_essid}" = "\"${sta_essid}\"" ] && [ -z "${sta_bssid}" ]) || \
[ "${scan_bssid}" = "${sta_bssid}" ]) && [ "${dev}" = "${sta_radio}" ]
then
uci_set wireless "${config}" disabled 0
f_check "sta"
if [ ${trm_ifquality} -ge ${trm_minquality} ]
then
if [ "${trm_ifstatus}" = "true" ]
then
uci_commit wireless
f_log "info" "interface '${sta_iface}' on '${sta_radio}' connected to uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' (${trm_sysver})"
f_check "initial"
return 0
elif [ ${trm_maxretry} -ne 0 ] && [ ${cnt} -eq ${trm_maxretry} ]
then
uci_set wireless "${config}" disabled 1
if [ -n "${sta_essid}" ]
then
uci_set wireless "${config}" ssid "${sta_essid}_err"
fi
if [ -n "${sta_bssid}" ]
then
uci_set wireless "${config}" bssid "${sta_bssid}_err"
fi
uci_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_jsnup
fi
fi
fi
scan_quality=""
scan_bssid=""
scan_essid=""
fi
done
IFS=" "
done
fi
cnt=$((cnt+1))
@@ -301,10 +349,10 @@ f_main()
if [ ! -s "${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."${config}".network)"
sta_radio="$(uci_get wireless "${config}" device)"
sta_essid="$(uci_get wireless "${config}" ssid)"
sta_bssid="$(uci_get wireless "${config}" bssid)"
sta_iface="$(uci_get wireless "${config}" network)"
f_jsnup "${sta_iface}" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
fi
fi