959 lines
32 KiB
Bash
Executable File
959 lines
32 KiB
Bash
Executable File
#!/bin/sh
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# travelmate, a wlan connection manager for travel router
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# Copyright (c) 2016-2021 Dirk Brenken (dev@brenken.org)
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# This is free software, licensed under the GNU General Public License v3.
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# set (s)hellcheck exceptions
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# shellcheck disable=1091,2086,3040,3043,3057,3060
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export LC_ALL=C
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export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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set -o pipefail
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trm_ver="2.0.4"
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trm_enabled=0
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trm_debug=0
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trm_iface=""
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trm_captive=1
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trm_proactive=1
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trm_netcheck=0
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trm_autoadd=0
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trm_randomize=0
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trm_mail=0
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trm_vpn=0
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trm_mailpgm="/etc/travelmate/travelmate.mail"
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trm_vpnpgm="/etc/travelmate/travelmate.vpn"
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trm_vpnservice=""
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trm_scanbuffer=1024
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trm_minquality=35
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trm_maxretry=3
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trm_maxwait=30
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trm_timeout=60
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trm_radio=""
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trm_connection=""
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trm_wpaflags=""
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trm_rtfile="/tmp/trm_runtime.json"
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trm_wifi="$(command -v wifi)"
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trm_fetch="$(command -v curl)"
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trm_iwinfo="$(command -v iwinfo)"
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trm_logger="$(command -v logger)"
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trm_wpa="$(command -v wpa_supplicant)"
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trm_captiveurl="http://detectportal.firefox.com"
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trm_useragent="Mozilla/5.0 (Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0"
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trm_ntpfile="/var/state/travelmate.ntp"
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trm_vpnfile="/var/state/travelmate.vpn"
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trm_mailfile="/var/state/travelmate.mail"
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trm_refreshfile="/var/state/travelmate.refresh"
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trm_pidfile="/var/run/travelmate.pid"
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trm_action="${1:-"start"}"
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# load travelmate environment
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#
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f_env()
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{
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local IFS check wpa_checks ubus_check result
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# do nothing on stop
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#
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if [ "${trm_action}" = "stop" ]; then
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return
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fi
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# (re-)initialize global list variables
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#
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unset trm_stalist trm_radiolist trm_uplinklist trm_wpaflags trm_activesta
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# get system information
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#
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trm_sysver="$(ubus -S call system board 2>/dev/null | jsonfilter -q -e '@.model' -e '@.release.description' |
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awk 'BEGIN{ORS=", "}{print $0}' | awk '{print substr($0,1,length($0)-2)}')"
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# check travelmate config
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#
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if [ ! -r "/etc/config/travelmate" ] || [ -z "$(uci -q show travelmate.global.trm_vpn)" ]; then
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f_log "err" "invalid travelmate config, please re-install the package via opkg with the '--force-reinstall --force-maintainer' options"
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fi
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# load travelmate config
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#
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config_cb()
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{
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local name="${1}" type="${2}"
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if [ "${name}" = "travelmate" ] && [ "${type}" = "global" ]; then
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option_cb()
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{
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local option="${1}" value="${2}"
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eval "${option}=\"${value}\""
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}
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else
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option_cb()
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{
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return 0
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}
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fi
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}
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config_load travelmate
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# check 'enabled' option
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#
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if [ "${trm_enabled}" != "1" ]; then
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f_log "info" "travelmate is currently disabled, please set 'trm_enabled' to '1' to use this service"
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/etc/init.d/travelmate stop
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fi
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# check ubus network interface
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#
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if [ -n "${trm_iface}" ]; then
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ubus_check="$(ubus -t "${trm_maxwait}" wait_for network.wireless network.interface."${trm_iface}" 2>&1)"
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if [ -n "${ubus_check}" ]; then
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f_log "info" "travelmate interface '${trm_iface}' does not appear on ubus, please check your network setup"
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/etc/init.d/travelmate stop
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fi
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else
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f_log "info" "travelmate is currently not configured, please use the 'Interface Setup' in LuCI or the 'setup' option in CLI"
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/etc/init.d/travelmate stop
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fi
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# check wpa capabilities
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#
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wpa_checks="sae owe eap suiteb192"
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for check in ${wpa_checks}; do
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if [ -x "${trm_wpa}" ]; then
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result="$(
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"${trm_wpa}" -v${check} >/dev/null 2>&1
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printf "%u" "${?}"
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)"
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if [ -z "${trm_wpaflags}" ]; then
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if [ "${result}" = "0" ]; then
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trm_wpaflags="${check}: $(f_char 1)"
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else
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trm_wpaflags="${check}: $(f_char 0)"
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fi
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else
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if [ "${result}" = "0" ]; then
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trm_wpaflags="$(f_trim "${trm_wpaflags}, ${check}: $(f_char 1)")"
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else
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trm_wpaflags="$(f_trim "${trm_wpaflags}, ${check}: $(f_char 0)")"
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fi
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fi
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fi
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done
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# get and enable wifi devices
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#
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config_load wireless
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config_foreach f_prepdev wifi-device
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if [ -n "$(uci -q changes "wireless")" ]; then
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uci_commit "wireless"
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f_reconf
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fi
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# load json runtime file
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#
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json_load_file "${trm_rtfile}" >/dev/null 2>&1
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if ! json_select data >/dev/null 2>&1; then
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: >"${trm_rtfile}"
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json_init
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json_add_object "data"
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fi
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f_log "debug" "f_env ::: wpa_flags: ${trm_wpaflags}, sys_ver: ${trm_sysver}"
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}
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# trim helper function
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#
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f_trim()
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{
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local IFS trim="${1}"
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trim="${trim#"${trim%%[![:space:]]*}"}"
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trim="${trim%"${trim##*[![:space:]]}"}"
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printf "%s" "${trim}"
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}
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# status helper function
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#
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f_char()
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{
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local result input="${1}"
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if [ "${input}" = "1" ]; then
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result="✔"
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else
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result="✘"
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fi
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printf "%s" "${result}"
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}
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# wifi reconf helper function
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#
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f_reconf()
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{
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local radio tmp_radio cnt="0"
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"${trm_wifi}" reconf
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for radio in ${trm_radiolist}; do
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while [ "$(ubus -S call network.wireless status | jsonfilter -q -l1 -e "@.${radio}.up")" != "true" ]; do
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if [ "${cnt}" -ge "${trm_maxwait}" ]; then
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break 2
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fi
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if [ "${radio}" != "${tmp_radio}" ]; then
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"${trm_wifi}" up "${radio}"
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tmp_radio="${radio}"
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fi
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cnt="$((cnt + 1))"
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sleep 1
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done
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done
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f_log "debug" "f_reconf ::: radio_list: ${trm_radiolist}, radio: ${radio}, cnt: ${cnt}"
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}
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# vpn helper function
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#
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f_vpn()
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{
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local IFS rc action="${1}"
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if [ "${trm_vpn}" = "1" ] && [ -x "${trm_vpnpgm}" ]; then
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if [ "${action}" = "disable" ] || {
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[ "${action}" = "enable" ] && [ ! -f "${trm_vpnfile}" ]
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}; then
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"${trm_vpnpgm}" "${action}" >/dev/null 2>&1
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rc="${?}"
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fi
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if [ "${action}" = "enable" ] && [ "${rc}" = "0" ]; then
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: >"${trm_vpnfile}"
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elif [ "${action}" = "disable" ] && [ -f "${trm_vpnfile}" ]; then
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rm -f "${trm_vpnfile}"
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fi
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fi
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f_log "debug" "f_vpn ::: vpn: ${trm_vpn}, vpnservice: ${trm_vpnservice:-"-"}, vpnpgm: ${trm_vpnpgm}, action: ${action}, rc: ${rc:-"-"}"
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}
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# mac randomizer helper function
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#
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f_mac()
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{
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local result ifname action="${1}" section="${2}"
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if [ "${trm_randomize}" = "1" ] && [ "${action}" = "set" ]; then
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result="$(hexdump -n6 -ve '/1 "%.02X "' /dev/random 2>/dev/null |
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awk -v local="2,6,A,E" -v seed="$(date +%s)" 'BEGIN{srand(seed)}NR==1{split(local,b,",");seed=int(rand()*4+1);printf "%s%s:%s:%s:%s:%s:%s",substr($1,0,1),b[seed],$2,$3,$4,$5,$6}')"
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uci_set "wireless" "${section}" "macaddr" "${result}"
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else
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result="$(uci_get "wireless" "${section}" "macaddr")"
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if [ -z "${result}" ]; then
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ifname="$(ubus -S call network.wireless status 2>/dev/null | jsonfilter -q -l1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
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result="$(${trm_iwinfo} "${ifname}" info 2>/dev/null | awk '/Access Point:/{printf "%s",$3}')"
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fi
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fi
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printf "%s" "${result}"
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f_log "debug" "f_mac ::: action: ${action:-"-"}, section: ${section:-"-"}, mac: ${result:-"-"}"
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}
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# track/set travelmate connection information
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#
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f_contrack()
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{
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local uplink_config radio_config essid_config bssid_config expiry action="${1}" radio="${2}" essid="${3}" bssid="${4}" cnt=0
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while [ "$(
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uci_get "travelmate" "@uplink[$cnt]" >/dev/null 2>&1
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echo $?
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)" = "0" ]; do
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radio_config="$(uci_get "travelmate" "@uplink[$cnt]" "device")"
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essid_config="$(uci_get "travelmate" "@uplink[$cnt]" "ssid")"
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bssid_config="$(uci_get "travelmate" "@uplink[$cnt]" "bssid")"
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if [ "${radio_config}" = "${radio}" ] && [ "${essid_config}" = "${essid}" ] && [ "${bssid_config}" = "${bssid}" ]; then
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uplink_config="@uplink[$cnt]"
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fi
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cnt="$((cnt + 1))"
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done
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if [ -n "${uplink_config}" ]; then
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case "${action}" in
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"start")
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uci_remove "travelmate" "${uplink_config}" "con_start" 2>/dev/null
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uci_remove "travelmate" "${uplink_config}" "con_end" 2>/dev/null
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if [ -f "${trm_ntpfile}" ]; then
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uci_set "travelmate" "${uplink_config}" "con_start" "$(date "+%Y.%m.%d-%H:%M:%S")"
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fi
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;;
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"refresh")
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if [ -f "${trm_ntpfile}" ] && [ -z "$(uci_get "travelmate" "${uplink_config}" "con_start")" ]; then
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uci_set "travelmate" "${uplink_config}" "con_start" "$(date "+%Y.%m.%d-%H:%M:%S")"
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fi
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;;
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"end")
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if [ -f "${trm_ntpfile}" ]; then
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uci_set "travelmate" "${uplink_config}" "con_end" "$(date "+%Y.%m.%d-%H:%M:%S")"
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fi
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;;
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"start_expiry")
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if [ -f "${trm_ntpfile}" ]; then
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expiry="$(uci_get "travelmate" "${uplink_config}" "con_start_expiry")"
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uci_set "travelmate" "${uplink_config}" "enabled" "0"
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uci_set "travelmate" "${uplink_config}" "con_end" "$(date "+%Y.%m.%d-%H:%M:%S")"
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f_log "info" "uplink '${radio}/${essid}/${bssid:-"-"}' expired after ${expiry} minutes"
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fi
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;;
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"end_expiry")
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if [ -f "${trm_ntpfile}" ]; then
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expiry="$(uci_get "travelmate" "${uplink_config}" "con_end_expiry")"
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uci_set "travelmate" "${uplink_config}" "enabled" "1"
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uci_remove "travelmate" "${uplink_config}" "con_start" 2>/dev/null
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uci_remove "travelmate" "${uplink_config}" "con_end" 2>/dev/null
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f_log "info" "uplink '${radio}/${essid}/${bssid:-"-"}' re-enabled after ${expiry} minutes"
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fi
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;;
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"disabled")
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uci_set "travelmate" "${uplink_config}" "enabled" "0"
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if [ -f "${trm_ntpfile}" ]; then
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uci_set "travelmate" "${uplink_config}" "con_end" "$(date "+%Y.%m.%d-%H:%M:%S")"
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fi
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;;
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esac
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if [ -n "$(uci -q changes "travelmate")" ]; then
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uci_commit "travelmate"
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if [ ! -f "${trm_refreshfile}" ]; then
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printf "%s" "cfg_reload" >"${trm_refreshfile}"
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fi
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fi
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fi
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}
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# get/match travelmate uplink option
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#
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f_uplink()
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{
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local IFS result t_radio t_essid t_bssid t_option="${1}" w_radio="${2}" w_essid="${3}" w_bssid="${4}" cnt=0
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while [ "$(
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uci_get "travelmate" "@uplink[$cnt]" >/dev/null 2>&1
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echo $?
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)" = "0" ]; do
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t_radio="$(uci_get "travelmate" "@uplink[$cnt]" "device")"
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t_essid="$(uci_get "travelmate" "@uplink[$cnt]" "ssid")"
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t_bssid="$(uci_get "travelmate" "@uplink[$cnt]" "bssid")"
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if [ -n "${w_radio}" ] && [ -n "${w_essid}" ] &&
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[ "${t_radio}" = "${w_radio}" ] && [ "${t_essid}" = "${w_essid}" ] && [ "${t_bssid}" = "${w_bssid}" ]; then
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result="$(uci_get "travelmate" "@uplink[$cnt]" "${t_option}")"
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break
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fi
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cnt="$((cnt + 1))"
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done
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printf "%s" "${result}"
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f_log "debug" "f_uplink ::: option: ${t_option}, result: ${result}"
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}
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# prepare the 'wifi-device' sections
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#
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f_prepdev()
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{
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local IFS disabled radio="${1}"
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disabled="$(uci_get "wireless" "${radio}" "disabled")"
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if [ "${disabled}" = "1" ]; then
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uci_set wireless "${radio}" disabled 0
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fi
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if [ -z "${trm_radio}" ] && ! printf "%s" "${trm_radiolist}" | grep -q "${radio}"; then
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trm_radiolist="$(f_trim "${trm_radiolist} ${radio}")"
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elif [ -n "${trm_radio}" ] && [ -z "${trm_radiolist}" ]; then
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trm_radiolist="$(f_trim "$(printf "%s" "${trm_radio}" |
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awk '{while(match(tolower($0),/[a-z0-9_]+/)){ORS=" ";print substr(tolower($0),RSTART,RLENGTH);$0=substr($0,RSTART+RLENGTH)}}')")"
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fi
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f_log "debug" "f_prepdev ::: trm_radio: ${trm_radio:-"-"}, radio: ${radio}, radio_list: ${trm_radiolist:-"-"}, disabled: ${disabled:-"-"}"
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}
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# add open uplink to new 'wifi-iface' section
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#
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f_addif()
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{
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local IFS uci_cfg offset=1 radio="${1}" essid="${2}"
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config_cb()
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{
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local type="${1}" name="${2}"
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if [ "${type}" = "wifi-iface" ]; then
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if [ "$(uci -q get "wireless.${name}.ssid")" = "${essid}" ]; then
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offset=0
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elif [ "${offset}" != "0" ]; then
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offset="$((offset + 1))"
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fi
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fi
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return "${offset}"
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}
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config_load wireless
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if [ "${offset}" != "0" ]; then
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uci_cfg="trm_uplink${offset}"
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while [ -n "$(uci -q get "wireless.${uci_cfg}")" ]; do
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offset="$((offset + 1))"
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uci_cfg="trm_uplink${offset}"
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done
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uci -q batch <<-EOC
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set wireless."${uci_cfg}"="wifi-iface"
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set wireless."${uci_cfg}".mode="sta"
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set wireless."${uci_cfg}".network="${trm_iface}"
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set wireless."${uci_cfg}".device="${radio}"
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set wireless."${uci_cfg}".ssid="${essid}"
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set wireless."${uci_cfg}".encryption="none"
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set wireless."${uci_cfg}".disabled="1"
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EOC
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uci_cfg="$(uci -q add travelmate uplink)"
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uci -q batch <<-EOC
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set travelmate."${uci_cfg}".device="${radio}"
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set travelmate."${uci_cfg}".ssid="${essid}"
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set travelmate."${uci_cfg}".con_start_expiry="0"
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set travelmate."${uci_cfg}".con_end_expiry="0"
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set travelmate."${uci_cfg}".enabled="1"
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EOC
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if [ -n "$(uci -q changes "travelmate")" ] || [ -n "$(uci -q changes "wireless")" ]; then
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uci_commit "travelmate"
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uci_commit "wireless"
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f_reconf
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if [ ! -f "${trm_refreshfile}" ]; then
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printf "%s" "ui_reload" >"${trm_refreshfile}"
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fi
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f_log "info" "open uplink '${radio}/${essid}' added to wireless config"
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fi
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fi
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f_log "debug" "f_addif ::: radio: ${radio:-"-"}, essid: ${essid}, offset: ${offset:-"-"}"
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}
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# prepare the 'wifi-iface' sections
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#
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f_prepif()
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{
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local IFS mode radio essid bssid disabled status con_start con_end con_start_expiry con_end_expiry section="${1}" proactive="${2}"
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mode="$(uci_get "wireless" "${section}" "mode")"
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radio="$(uci_get "wireless" "${section}" "device")"
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essid="$(uci_get "wireless" "${section}" "ssid")"
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bssid="$(uci_get "wireless" "${section}" "bssid")"
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disabled="$(uci_get "wireless" "${section}" "disabled")"
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status="$(f_uplink "enabled" "${radio}" "${essid}" "${bssid}")"
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con_start="$(f_uplink "con_start" "${radio}" "${essid}" "${bssid}")"
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con_end="$(f_uplink "con_end" "${radio}" "${essid}" "${bssid}")"
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con_start_expiry="$(f_uplink "con_start_expiry" "${radio}" "${essid}" "${bssid}")"
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con_end_expiry="$(f_uplink "con_end_expiry" "${radio}" "${essid}" "${bssid}")"
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if [ "${status}" = "0" ] && [ -n "${con_end}" ] && [ -n "${con_end_expiry}" ] && [ "${con_end_expiry}" != "0" ]; then
|
|
d1="$(date -d "${con_end}" "+%s")"
|
|
d2="$(date "+%s")"
|
|
d3="$(((d2 - d1) / 60))"
|
|
if [ "${d3}" -ge "${con_end_expiry}" ]; then
|
|
status="1"
|
|
f_contrack "end_expiry" "${radio}" "${essid}" "${bssid}"
|
|
fi
|
|
elif [ "${status}" = "1" ] && [ -n "${con_start}" ] && [ -n "${con_start_expiry}" ] && [ "${con_start_expiry}" != "0" ]; then
|
|
d1="$(date -d "${con_start}" "+%s")"
|
|
d2="$(date "+%s")"
|
|
d3="$((d1 + (con_start_expiry * 60)))"
|
|
if [ "${d2}" -gt "${d3}" ]; then
|
|
status="0"
|
|
f_contrack "start_expiry" "${radio}" "${essid}" "${bssid}"
|
|
fi
|
|
fi
|
|
|
|
if [ "${mode}" = "sta" ]; then
|
|
if [ "${status}" = "0" ] ||
|
|
{
|
|
{
|
|
[ -z "${disabled}" ] || [ "${disabled}" = "0" ]
|
|
} && {
|
|
[ "${proactive}" = "0" ] || [ "${trm_ifstatus}" != "true" ]
|
|
}
|
|
}; then
|
|
uci_set "wireless" "${section}" "disabled" "1"
|
|
elif [ "${disabled}" = "0" ] && [ "${trm_ifstatus}" = "true" ] && [ "${proactive}" = "1" ]; then
|
|
if [ -z "${trm_activesta}" ]; then
|
|
trm_activesta="${section}"
|
|
else
|
|
uci_set "wireless" "${section}" "disabled" "1"
|
|
fi
|
|
fi
|
|
if [ "${status}" = "1" ]; then
|
|
trm_stalist="$(f_trim "${trm_stalist} ${section}-${radio}")"
|
|
fi
|
|
fi
|
|
f_log "debug" "f_prepif ::: status: ${status}, section: ${section}, active_sta: ${trm_activesta:-"-"}"
|
|
}
|
|
|
|
# check net status
|
|
#
|
|
f_net()
|
|
{
|
|
local IFS err err_rc err_domain raw html_raw html_cp json_raw json_cp json_rc result="net nok"
|
|
|
|
raw="$(${trm_fetch} --user-agent "${trm_useragent}" --referer "http://www.example.com" --header "Cache-Control: no-cache, no-store, must-revalidate" --header "Pragma: no-cache" --header "Expires: 0" --write-out "%{json}" --silent --show-error --connect-timeout $((trm_maxwait / 10)) "${trm_captiveurl}" 2>/tmp/trm_fetch.err)"
|
|
json_raw="${raw#*\{}"
|
|
html_raw="${raw%%\{*}"
|
|
if [ -s "/tmp/trm_fetch.err" ]; then
|
|
err="$(awk 'BEGIN{FS="[()'\'' ]"}{printf "%s %s",$3,$(NF-1)}' "/tmp/trm_fetch.err")"
|
|
err_rc="${err% *}"
|
|
err_domain="${err#* }"
|
|
if [ "${err_rc}" = "6" ]; then
|
|
if [ -n "${err_domain}" ] && [ "${err_domain}" != "timed" ] && [ "${err_domain}" != "${trm_captiveurl#http*://*}" ]; then
|
|
result="net cp '${err_domain}'"
|
|
fi
|
|
fi
|
|
elif [ -n "${json_raw}" ]; then
|
|
json_cp="$(printf "%s" "{${json_raw}" | jsonfilter -q -l1 -e '@.redirect_url' | awk 'BEGIN{FS="/"}{printf "%s",$3}')"
|
|
json_rc="$(printf "%s" "{${json_raw}" | jsonfilter -q -l1 -e '@.response_code')"
|
|
if [ -n "${json_cp}" ]; then
|
|
result="net cp '${json_cp}'"
|
|
else
|
|
if [ "${json_rc}" = "200" ] || [ "${json_rc}" = "204" ]; then
|
|
html_cp="$(printf "%s" "${html_raw}" | awk 'match(tolower($0),/^.*<meta[ \t]+http-equiv=["]*refresh.*[ \t;]url=/){print substr(tolower($0),RLENGTH+1)}' | awk 'BEGIN{FS="[:/]"}{printf "%s",$4;exit}')"
|
|
if [ -n "${html_cp}" ]; then
|
|
result="net cp '${html_cp}'"
|
|
else
|
|
result="net ok"
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
rm -f "/tmp/trm_fetch.err"
|
|
printf "%s" "${result}"
|
|
f_log "debug" "f_net ::: fetch: ${trm_fetch}, timeout: $((trm_maxwait / 6)), url: ${trm_captiveurl}, user_agent: ${trm_useragent}, cp (json/html): ${json_cp:-"-"}/${html_cp:-"-"}, result: ${result}, error: ${err:-"-"}"
|
|
}
|
|
|
|
# check interface status
|
|
#
|
|
f_check()
|
|
{
|
|
local IFS ifname radio dev_status result login_script login_script_args cp_domain wait_time="1" enabled="1" mode="${1}" status="${2}" sta_radio="${3}" sta_essid="${4}" sta_bssid="${5}"
|
|
|
|
if [ "${mode}" = "initial" ] || [ "${mode}" = "dev" ]; then
|
|
json_get_var station_id "station_id"
|
|
sta_radio="${station_id%%/*}"
|
|
sta_essid="${station_id%/*}"
|
|
sta_essid="${sta_essid#*/}"
|
|
sta_bssid="${station_id##*/}"
|
|
sta_bssid="${sta_bssid//-/}"
|
|
fi
|
|
if [ "${mode}" != "rev" ] && [ -n "${sta_radio}" ] && [ "${sta_radio}" != "-" ] && [ -n "${sta_essid}" ] && [ "${sta_essid}" != "-" ]; then
|
|
enabled="$(f_uplink "enabled" "${sta_radio}" "${sta_essid}" "${sta_bssid}")"
|
|
fi
|
|
if {
|
|
[ "${mode}" != "initial" ] && [ "${mode}" != "dev" ] && [ "${status}" = "false" ]
|
|
} ||
|
|
{
|
|
[ "${mode}" = "dev" ] && {
|
|
[ "${status}" = "false" ] || {
|
|
[ "${trm_ifstatus}" != "${status}" ] && [ "${enabled}" = "0" ]
|
|
}
|
|
}
|
|
}; then
|
|
f_reconf
|
|
fi
|
|
while [ "${wait_time}" -le "${trm_maxwait}" ]; do
|
|
dev_status="$(ubus -S call network.wireless status 2>/dev/null)"
|
|
if [ -n "${dev_status}" ]; then
|
|
if [ "${mode}" = "dev" ]; then
|
|
if [ "${trm_ifstatus}" != "${status}" ]; then
|
|
trm_ifstatus="${status}"
|
|
f_jsnup
|
|
fi
|
|
if [ "${status}" = "false" ]; then
|
|
sleep "$((trm_maxwait / 5))"
|
|
fi
|
|
break
|
|
elif [ "${mode}" = "rev" ]; then
|
|
break
|
|
else
|
|
ifname="$(printf "%s" "${dev_status}" | jsonfilter -q -l1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
|
|
if [ -n "${ifname}" ] && [ "${enabled}" = "1" ]; then
|
|
result="$(f_net)"
|
|
trm_ifquality="$(${trm_iwinfo} "${ifname}" info 2>/dev/null | awk -F '[ ]' '/Link Quality:/{split($NF,var0,"/");printf "%i\n",(var0[1]*100/var0[2])}')"
|
|
if [ "${trm_ifquality}" -ge "${trm_minquality}" ]; then
|
|
trm_ifstatus="$(ubus -S call network.interface dump 2>/dev/null | jsonfilter -q -l1 -e "@.interface[@.device=\"${ifname}\"].up")"
|
|
if [ "${trm_ifstatus}" = "true" ]; then
|
|
if [ "${trm_captive}" = "1" ]; then
|
|
cp_domain="$(printf "%s" "${result}" | awk -F '['\''| ]' '/^net cp/{printf "%s",$4}')"
|
|
if [ -x "/etc/init.d/dnsmasq" ] && [ -f "/etc/config/dhcp" ] &&
|
|
[ -n "${cp_domain}" ] && ! uci_get "dhcp" "@dnsmasq[0]" "rebind_domain" | grep -q "${cp_domain}"; then
|
|
uci_add_list "dhcp" "@dnsmasq[0]" "rebind_domain" "${cp_domain}"
|
|
uci_commit "dhcp"
|
|
/etc/init.d/dnsmasq reload
|
|
f_log "info" "captive portal domain '${cp_domain}' added to to dhcp rebind whitelist"
|
|
fi
|
|
if [ -n "${cp_domain}" ] && [ "${trm_captive}" = "1" ]; then
|
|
trm_connection="${result:-"-"}/${trm_ifquality}"
|
|
f_jsnup
|
|
login_script="$(f_uplink "script" "${sta_radio}" "${sta_essid}" "${sta_bssid}")"
|
|
if [ -x "${login_script}" ]; then
|
|
login_script_args="$(f_uplink "script_args" "${sta_radio}" "${sta_essid}" "${sta_bssid}")"
|
|
"${login_script}" ${login_script_args} >/dev/null 2>&1
|
|
rc="${?}"
|
|
f_log "info" "captive portal login for '${cp_domain}' has been executed with rc '${rc}'"
|
|
if [ "${rc}" = "0" ]; then
|
|
result="$(f_net)"
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
if [ "${trm_netcheck}" = "1" ] && [ "${result}" = "net nok" ]; then
|
|
f_log "info" "uplink has no internet (new connection)"
|
|
f_vpn "disable"
|
|
trm_ifstatus="${status}"
|
|
f_jsnup
|
|
break
|
|
fi
|
|
trm_connection="${result:-"-"}/${trm_ifquality}"
|
|
f_jsnup
|
|
break
|
|
fi
|
|
elif [ -n "${trm_connection}" ]; then
|
|
if [ "${trm_ifquality}" -lt "${trm_minquality}" ]; then
|
|
f_log "info" "uplink is out of range (${trm_ifquality}/${trm_minquality})"
|
|
f_vpn "disable"
|
|
unset trm_connection
|
|
trm_ifstatus="${status}"
|
|
f_contrack "end" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
elif [ "${trm_netcheck}" = "1" ] && [ "${result}" = "net nok" ]; then
|
|
f_log "info" "uplink has no internet (existing connection)"
|
|
f_vpn "disable"
|
|
unset trm_connection
|
|
trm_ifstatus="${status}"
|
|
fi
|
|
f_jsnup
|
|
break
|
|
elif [ "${mode}" = "initial" ]; then
|
|
trm_ifstatus="${status}"
|
|
f_jsnup
|
|
break
|
|
fi
|
|
elif [ -n "${trm_connection}" ]; then
|
|
f_vpn "disable"
|
|
unset trm_connection
|
|
trm_ifstatus="${status}"
|
|
f_jsnup
|
|
break
|
|
elif [ "${mode}" = "initial" ]; then
|
|
trm_ifstatus="${status}"
|
|
f_jsnup
|
|
break
|
|
fi
|
|
fi
|
|
fi
|
|
if [ "${mode}" = "initial" ]; then
|
|
trm_ifstatus="${status}"
|
|
f_jsnup
|
|
break
|
|
fi
|
|
wait_time="$((wait_time + 1))"
|
|
sleep 1
|
|
done
|
|
f_log "debug" "f_check ::: mode: ${mode}, name: ${ifname:-"-"}, status: ${trm_ifstatus}, enabled: ${enabled}, connection: ${trm_connection:-"-"}, wait: ${wait_time}, max_wait: ${trm_maxwait}, min_quality: ${trm_minquality}, captive: ${trm_captive}, netcheck: ${trm_netcheck}"
|
|
}
|
|
|
|
# update runtime information
|
|
#
|
|
f_jsnup()
|
|
{
|
|
local IFS section last_date last_station sta_iface sta_radio sta_essid sta_bssid sta_mac dev_status last_status status="${trm_ifstatus}" ntp_done="0" vpn_done="0" mail_done="0"
|
|
|
|
if [ "${status}" = "true" ]; then
|
|
status="connected (${trm_connection:-"-"})"
|
|
dev_status="$(ubus -S call network.wireless status 2>/dev/null)"
|
|
if [ -n "${dev_status}" ]; then
|
|
section="$(printf "%s" "${dev_status}" | jsonfilter -q -l1 -e '@.*.interfaces[@.config.mode="sta"].section')"
|
|
if [ -n "${section}" ]; then
|
|
sta_iface="$(uci_get "wireless" "${section}" "network")"
|
|
sta_radio="$(uci_get "wireless" "${section}" "device")"
|
|
sta_essid="$(uci_get "wireless" "${section}" "ssid")"
|
|
sta_bssid="$(uci_get "wireless" "${section}" "bssid")"
|
|
sta_mac="$(f_mac "get" "${section}")"
|
|
fi
|
|
fi
|
|
json_get_var last_date "last_run"
|
|
json_get_var last_station "station_id"
|
|
json_get_var last_status "travelmate_status"
|
|
|
|
if {
|
|
[ -f "${trm_ntpfile}" ] && [ ! -s "${trm_ntpfile}" ]
|
|
} || [ "${last_status}" = "running (not connected)" ] ||
|
|
{
|
|
[ -n "${last_station}" ] && [ "${last_station}" != "${sta_radio:-"-"}/${sta_essid:-"-"}/${sta_bssid:-"-"}" ]
|
|
}; then
|
|
last_date="$(date "+%Y.%m.%d-%H:%M:%S")"
|
|
if [ -f "${trm_ntpfile}" ] && [ ! -s "${trm_ntpfile}" ]; then
|
|
printf "%s" "${last_date}" >"${trm_ntpfile}"
|
|
fi
|
|
fi
|
|
elif [ "${status}" = "error" ]; then
|
|
unset trm_connection
|
|
status="program error"
|
|
else
|
|
unset trm_connection
|
|
status="running (not connected)"
|
|
fi
|
|
|
|
if [ -z "${last_date}" ]; then
|
|
last_date="$(date "+%Y.%m.%d-%H:%M:%S")"
|
|
fi
|
|
if [ -s "${trm_ntpfile}" ]; then
|
|
ntp_done="1"
|
|
fi
|
|
if [ "${trm_vpn}" = "1" ] && [ -f "${trm_vpnfile}" ]; then
|
|
vpn_done="1"
|
|
fi
|
|
if [ "${trm_mail}" = "1" ] && [ -f "${trm_mailfile}" ]; then
|
|
mail_done="1"
|
|
fi
|
|
json_add_string "travelmate_status" "${status}"
|
|
json_add_string "travelmate_version" "${trm_ver}"
|
|
json_add_string "station_id" "${sta_radio:-"-"}/${sta_essid:-"-"}/${sta_bssid:-"-"}"
|
|
json_add_string "station_mac" "${sta_mac:-"-"}"
|
|
json_add_string "station_interface" "${sta_iface:-"-"}"
|
|
json_add_string "wpa_flags" "${trm_wpaflags:-"-"}"
|
|
json_add_string "run_flags" "captive: $(f_char ${trm_captive}), proactive: $(f_char ${trm_proactive}), netcheck: $(f_char ${trm_netcheck}), autoadd: $(f_char ${trm_autoadd}), randomize: $(f_char ${trm_randomize})"
|
|
json_add_string "ext_hooks" "ntp: $(f_char ${ntp_done}), vpn: $(f_char ${vpn_done}), mail: $(f_char ${mail_done})"
|
|
json_add_string "last_run" "${last_date}"
|
|
json_add_string "system" "${trm_sysver}"
|
|
json_dump >"${trm_rtfile}"
|
|
|
|
if [ "${status%% (net ok/*}" = "connected" ]; then
|
|
f_vpn "enable"
|
|
if [ "${trm_mail}" = "1" ] && [ -x "${trm_mailpgm}" ] && [ "${ntp_done}" = "1" ] && [ "${mail_done}" = "0" ]; then
|
|
if [ "${trm_vpn}" = "0" ] || [ "${vpn_done}" = "1" ]; then
|
|
: >"${trm_mailfile}"
|
|
"${trm_mailpgm}" >/dev/null 2>&1
|
|
fi
|
|
fi
|
|
else
|
|
f_vpn "disable"
|
|
fi
|
|
f_log "debug" "f_jsnup ::: section: ${section:-"-"}, status: ${status:-"-"}, sta_iface: ${sta_iface:-"-"}, sta_radio: ${sta_radio:-"-"}, sta_essid: ${sta_essid:-"-"}, sta_bssid: ${sta_bssid:-"-"}, ntp: ${ntp_done}, vpn: ${trm_vpn}/${vpn_done}, mail: ${trm_mail}/${mail_done}"
|
|
}
|
|
|
|
# write to syslog
|
|
#
|
|
f_log()
|
|
{
|
|
local IFS class="${1}" log_msg="${2}"
|
|
|
|
if [ -n "${log_msg}" ] && {
|
|
[ "${class}" != "debug" ] || [ "${trm_debug}" = "1" ]
|
|
}; then
|
|
if [ -x "${trm_logger}" ]; then
|
|
"${trm_logger}" -p "${class}" -t "trm-${trm_ver}[${$}]" "${log_msg}"
|
|
else
|
|
printf '%s %s %s\n' "${class}" "trm-${trm_ver}[${$}]" "${log_msg}"
|
|
fi
|
|
if [ "${class}" = "err" ]; then
|
|
trm_ifstatus="error"
|
|
f_jsnup
|
|
: >"${trm_pidfile}"
|
|
exit 1
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# main function for connection handling
|
|
#
|
|
f_main()
|
|
{
|
|
local IFS cnt retrycnt spec scan_dev scan_list scan_essid scan_bssid scan_open scan_quality
|
|
local station_id section sta sta_essid sta_bssid sta_radio sta_iface sta_mac config_essid config_bssid config_radio
|
|
|
|
f_check "initial" "false"
|
|
f_log "debug" "f_main ::: status: ${trm_ifstatus}, proactive: ${trm_proactive}"
|
|
if [ "${trm_ifstatus}" != "true" ] || [ "${trm_proactive}" = "1" ]; then
|
|
config_load wireless
|
|
config_foreach f_prepif wifi-iface ${trm_proactive}
|
|
if [ "${trm_ifstatus}" = "true" ] && [ -n "${trm_activesta}" ] && [ "${trm_proactive}" = "1" ]; then
|
|
json_get_var station_id "station_id"
|
|
config_radio="${station_id%%/*}"
|
|
config_essid="${station_id%/*}"
|
|
config_essid="${config_essid#*/}"
|
|
config_bssid="${station_id##*/}"
|
|
config_bssid="${config_bssid//-/}"
|
|
f_check "dev" "true"
|
|
f_log "debug" "f_main ::: config_radio: ${config_radio}, config_essid: \"${config_essid}\", config_bssid: ${config_bssid:-"-"}"
|
|
else
|
|
uci_commit "wireless"
|
|
f_check "dev" "false"
|
|
fi
|
|
f_log "debug" "f_main ::: radio_list: ${trm_radiolist}, sta_list: ${trm_stalist:0:trm_scanbuffer}"
|
|
|
|
# radio loop
|
|
#
|
|
for radio in ${trm_radiolist}; do
|
|
if ! printf "%s" "${trm_stalist}" | grep -q "\\-${radio}"; then
|
|
f_log "info" "no station on radio '${radio}'"
|
|
continue
|
|
fi
|
|
|
|
# station loop
|
|
#
|
|
for sta in ${trm_stalist}; do
|
|
section="${sta%%-*}"
|
|
sta_radio="$(uci_get "wireless" "${section}" "device")"
|
|
sta_essid="$(uci_get "wireless" "${section}" "ssid")"
|
|
sta_bssid="$(uci_get "wireless" "${section}" "bssid")"
|
|
sta_iface="$(uci_get "wireless" "${section}" "network")"
|
|
sta_mac="$(f_mac "get" "${section}")"
|
|
if [ -z "${sta_radio}" ] || [ -z "${sta_essid}" ] || [ -z "${sta_iface}" ]; then
|
|
f_log "info" "invalid wireless section '${section}'"
|
|
continue
|
|
fi
|
|
if [ "${sta_radio}" = "${config_radio}" ] && [ "${sta_essid}" = "${config_essid}" ] && [ "${sta_bssid}" = "${config_bssid}" ]; then
|
|
f_contrack "refresh" "${config_radio}" "${config_essid}" "${config_bssid}"
|
|
f_log "info" "uplink still in range '${config_radio}/${config_essid}/${config_bssid:-"-"}' with mac '${sta_mac:-"-"}'"
|
|
break 2
|
|
fi
|
|
f_log "debug" "f_main ::: sta_radio: ${sta_radio}, sta_essid: \"${sta_essid}\", sta_bssid: ${sta_bssid:-"-"}"
|
|
if [ -z "${scan_list}" ]; then
|
|
scan_dev="$(ubus -S call network.wireless status 2>/dev/null | jsonfilter -q -l1 -e "@.${radio}.interfaces[0].ifname")"
|
|
scan_list="$("${trm_iwinfo}" "${scan_dev:-${radio}}" scan 2>/dev/null |
|
|
awk 'BEGIN{FS="[[:space:]]"}/Address:/{var1=$NF}/ESSID:/{var2="";for(i=12;i<=NF;i++)if(var2==""){var2=$i}else{var2=var2" "$i};
|
|
gsub(/,/,".",var2)}/Quality:/{split($NF,var0,"/")}/Encryption:/{if($NF=="none"){var3="+"}else{var3="-"};printf "%i,%s,%s,%s\n",(var0[1]*100/var0[2]),var1,var2,var3}' |
|
|
sort -rn | awk -v buf="${trm_scanbuffer}" 'BEGIN{ORS=","}{print substr($0,1,buf)}')"
|
|
f_log "debug" "f_main ::: radio: ${radio}, scan_device: ${scan_dev}, scan_buffer: ${trm_scanbuffer}, scan_list: ${scan_list:-"-"}"
|
|
if [ -z "${scan_list}" ]; then
|
|
f_log "info" "no scan results on '${radio}'"
|
|
continue 2
|
|
fi
|
|
fi
|
|
|
|
# scan loop
|
|
#
|
|
IFS=","
|
|
for spec in ${scan_list}; do
|
|
if [ -z "${scan_quality}" ]; then
|
|
scan_quality="${spec}"
|
|
elif [ -z "${scan_bssid}" ]; then
|
|
scan_bssid="${spec}"
|
|
elif [ -z "${scan_essid}" ]; then
|
|
scan_essid="${spec}"
|
|
elif [ -z "${scan_open}" ]; then
|
|
scan_open="${spec}"
|
|
fi
|
|
if [ -n "${scan_quality}" ] && [ -n "${scan_bssid}" ] && [ -n "${scan_essid}" ] && [ -n "${scan_open}" ]; then
|
|
if [ "${scan_quality}" -ge "${trm_minquality}" ]; then
|
|
if {
|
|
{
|
|
[ "${scan_essid}" = "\"${sta_essid//,/.}\"" ] && {
|
|
[ -z "${sta_bssid}" ] || [ "${scan_bssid}" = "${sta_bssid}" ]
|
|
}
|
|
} ||
|
|
{
|
|
[ "${scan_bssid}" = "${sta_bssid}" ] && [ "${scan_essid}" = "unknown" ]
|
|
}
|
|
} && [ "${radio}" = "${sta_radio}" ]; then
|
|
f_vpn "disable"
|
|
f_log "debug" "f_main ::: scan_quality: ${scan_quality}, scan_essid: ${scan_essid}, scan_bssid: ${scan_bssid:-"-"}, scan_open: ${scan_open}"
|
|
if [ -n "${config_radio}" ]; then
|
|
uci_set "wireless" "${trm_activesta}" "disabled" "1"
|
|
uci_commit "wireless"
|
|
f_contrack "end" "${config_radio}" "${config_essid}" "${config_bssid}"
|
|
f_log "info" "uplink connection terminated '${config_radio}/${config_essid}/${config_bssid:-"-"}'"
|
|
unset trm_connection config_radio config_essid config_bssid
|
|
fi
|
|
|
|
# retry loop
|
|
#
|
|
retrycnt=1
|
|
trm_radio="${sta_radio}"
|
|
while [ "${retrycnt}" -le "${trm_maxretry}" ]; do
|
|
if [ "${trm_randomize}" = "1" ]; then
|
|
sta_mac="$(f_mac "set" "${section}")"
|
|
fi
|
|
uci_set "wireless" "${section}" "disabled" "0"
|
|
f_check "sta" "false" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
if [ "${trm_ifstatus}" = "true" ]; then
|
|
unset IFS scan_list
|
|
rm -f "${trm_mailfile}"
|
|
uci_commit "wireless"
|
|
f_contrack "start" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
if [ "${trm_randomize}" = "0" ]; then
|
|
sta_mac="$(f_mac "get" "${section}")"
|
|
fi
|
|
f_log "info" "connected to uplink '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' with mac '${sta_mac:-"-"}' (${retrycnt}/${trm_maxretry})"
|
|
return 0
|
|
else
|
|
uci -q revert "wireless"
|
|
f_check "rev" "false"
|
|
if [ "${retrycnt}" = "${trm_maxretry}" ]; then
|
|
f_contrack "disabled" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
f_log "info" "uplink has been disabled '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${retrycnt}/${trm_maxretry})"
|
|
break 2
|
|
else
|
|
f_jsnup
|
|
f_log "info" "can't connect to uplink '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${retrycnt}/${trm_maxretry})"
|
|
fi
|
|
fi
|
|
retrycnt="$((retrycnt + 1))"
|
|
sleep "$((trm_maxwait / 6))"
|
|
done
|
|
elif [ "${trm_autoadd}" = "1" ] && [ "${scan_open}" = "+" ] && [ "${scan_essid}" != "unknown" ]; then
|
|
scan_essid="${scan_essid%?}"
|
|
scan_essid="${scan_essid:1}"
|
|
f_addif "${sta_radio}" "${scan_essid}"
|
|
fi
|
|
unset scan_quality scan_bssid scan_essid scan_open
|
|
continue
|
|
else
|
|
unset scan_quality scan_bssid scan_essid scan_open
|
|
continue
|
|
fi
|
|
fi
|
|
done
|
|
unset IFS scan_quality scan_bssid scan_essid scan_open
|
|
done
|
|
unset scan_list
|
|
done
|
|
fi
|
|
}
|
|
|
|
# source required system libraries
|
|
#
|
|
if [ -r "/lib/functions.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]; then
|
|
. "/lib/functions.sh"
|
|
. "/usr/share/libubox/jshn.sh"
|
|
else
|
|
f_log "err" "system libraries not found"
|
|
fi
|
|
|
|
# control travelmate actions
|
|
#
|
|
if [ "${trm_action}" != "stop" ]; then
|
|
f_env
|
|
fi
|
|
while true; do
|
|
if [ -z "${trm_action}" ]; then
|
|
rc=0
|
|
while true; do
|
|
if [ "${rc}" = "0" ]; then
|
|
f_check "initial" "false"
|
|
fi
|
|
sleep "${trm_timeout}" 0
|
|
rc=${?}
|
|
if [ "${rc}" != "0" ]; then
|
|
f_check "initial" "false"
|
|
fi
|
|
if [ "${rc}" = "0" ] || {
|
|
[ "${rc}" != "0" ] && [ "${trm_ifstatus}" = "false" ]
|
|
}; then
|
|
break
|
|
fi
|
|
done
|
|
elif [ "${trm_action}" = "stop" ]; then
|
|
if [ -s "${trm_pidfile}" ]; then
|
|
f_log "info" "travelmate instance stopped ::: action: ${trm_action}, pid: $(cat ${trm_pidfile} 2>/dev/null)"
|
|
: >"${trm_rtfile}"
|
|
: >"${trm_pidfile}"
|
|
fi
|
|
break
|
|
else
|
|
f_log "info" "travelmate instance started ::: action: ${trm_action}, pid: ${$}"
|
|
fi
|
|
json_cleanup
|
|
f_env
|
|
f_main
|
|
unset trm_action
|
|
done
|