mirror of
https://github.com/openwrt/packages.git
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Dirk Brenken
a6737bbedf
- re-added the accidently removed 'trm_lookupcmd', still used in the auto-login scripts Signed-off-by: Dirk Brenken <dev@brenken.org>
1528 lines
51 KiB
Bash
1528 lines
51 KiB
Bash
# travelmate shared function library/include, a wlan connection manager for travel router
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# Copyright (c) 2016-2026 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=all
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# initial defaults
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#
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export LC_ALL=C
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export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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trm_enabled="0"
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trm_debug="0"
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trm_laniface=""
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trm_captive="1"
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trm_proactive="0"
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trm_vpn="0"
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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_eviltwin="0"
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trm_mail="0"
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trm_mailtemplate="/etc/travelmate/mail.template"
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trm_vpnpgm="/etc/travelmate/travelmate.vpn"
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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_maxautoadd="5"
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trm_timeout="60"
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trm_radio=""
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trm_revradio="0"
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trm_connection=""
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trm_ssidfilter=""
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trm_ovpninfolist=""
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trm_vpnifacelist=""
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trm_vpninfolist=""
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trm_stdvpnservice=""
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trm_stdvpniface=""
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trm_subnet=""
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trm_subnet_last=""
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trm_lannet=""
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trm_rundir="/var/run/travelmate"
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trm_ntplock="${trm_rundir}/travelmate.ntp.lock"
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trm_vpnfile="${trm_rundir}/travelmate.vpn"
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trm_mailfile="${trm_rundir}/travelmate.mail"
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trm_refreshfile="${trm_rundir}/travelmate.refresh"
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trm_pidfile="${trm_rundir}/travelmate.pid"
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trm_scanfile="${trm_rundir}/travelmate.scan"
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trm_tmpfile="${trm_rundir}/travelmate.tmp"
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trm_rtfile="${trm_rundir}/travelmate.runtime.json"
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trm_captiveurl="http://detectportal.firefox.com"
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trm_useragent="Mozilla/5.0 (X11; Linux x86_64; rv:144.0) Gecko/20100101 Firefox/144.0"
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# ensure runtime directory exists
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#
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[ ! -d "${trm_rundir}" ] && mkdir -p "${trm_rundir}"
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# gather system information
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#
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f_system() {
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trm_packages="$("${trm_ubuscmd}" -S call rpc-sys packagelist '{ "all": true }' 2>/dev/null)"
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trm_fver="$(printf "%s" "${trm_packages}" | "${trm_jsoncmd}" -ql1 -e '@.packages["luci-app-travelmate"]')"
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trm_bver="$(printf "%s" "${trm_packages}" | "${trm_jsoncmd}" -ql1 -e '@.packages.travelmate')"
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trm_sysver="$("${trm_ubuscmd}" -S call system board 2>/dev/null |
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"${trm_jsoncmd}" -ql1 -e '@.model' -e '@.release.target' -e '@.release.distribution' -e '@.release.version' -e '@.release.revision' |
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"${trm_awkcmd}" 'BEGIN{RS="";FS="\n"}{printf "%s, %s, %s %s (%s)",$1,$2,$3,$4,$5}')"
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if [ ! -d "${trm_ntplock}" ]; then
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"${trm_ubuscmd}" -S call hotplug.ntp call '{ "env": [ "ACTION=stratum" ] }' >/dev/null 2>&1
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fi
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}
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# command selector
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#
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f_cmd() {
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local cmd pri_cmd="${1}" sec_cmd="${2}"
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# check for primary command, if not found check for secondary command (if provided), if still not found log an error
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#
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cmd="$(command -v "${pri_cmd}" 2>/dev/null)"
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if [ -z "${cmd}" ]; then
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if [ -n "${sec_cmd}" ]; then
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[ "${sec_cmd}" = "optional" ] && return
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cmd="$(command -v "${sec_cmd}" 2>/dev/null)"
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fi
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if [ -n "${cmd}" ]; then
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printf "%s" "${cmd}"
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else
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f_log "emerg" "command '${pri_cmd:-"-"}'/'${sec_cmd:-"-"}' not found"
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fi
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else
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printf "%s" "${cmd}"
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fi
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}
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# load travelmate config
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#
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f_conf() {
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local device
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unset trm_stalist trm_radiolist trm_vpnifacelist trm_uplinkcfg trm_activesta trm_ssidfilter
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config_cb() {
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option_cb() {
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local option="${1}" value="${2//\"/\\\"}"
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case "${option}" in
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*[!a-zA-Z0-9_]*) ;;
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*)
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eval "${option}=\"\${value}\""
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;;
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esac
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}
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list_cb() {
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local option="${1}" value="${2//\"/\\\"}"
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case "${option}" in
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*[!a-zA-Z0-9_]*) ;;
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*)
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eval "append=\"\${${option}}\""
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if [ -n "${append}" ]; then
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eval "${option}=\"\${${option}} \${value}\""
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else
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eval "${option}=\"\${value}\""
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fi
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;;
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esac
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}
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}
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config_load travelmate
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# early exit on stop action, otherwise run runtime sanity checks
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#
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if [ "${trm_action}" = "stop" ]; then
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return 0
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elif [ -z "${trm_iface}" ]; then
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f_log "info" "travelmate is currently not configured, please use the 'Interface Wizard' in LuCI"
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/etc/init.d/travelmate stop
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return 0
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elif ! "${trm_ubuscmd}" -t "${trm_maxwait}" wait_for network.wireless network.interface."${trm_iface}" >/dev/null 2>&1; then
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f_log "info" "travelmate interface '${trm_iface}' does not appear on ubus, please check your network setup"
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/etc/init.d/travelmate stop
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return 0
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fi
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# apply wifi-device config, commit and reload on changes
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#
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config_load wireless
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config_foreach f_setdev "wifi-device"
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if [ -n "$(uci -q changes "wireless")" ]; then
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uci_commit "wireless"
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f_wifi
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fi
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# init runtime json (create empty data object on missing/invalid 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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# enumerate logical vpn interfaces (only if vpn enabled and list still empty)
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#
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if [ "${trm_vpn}" = "1" ] && [ -z "${trm_vpninfolist}" ]; then
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config_load network
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config_foreach f_getvpn "interface"
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fi
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# build curl fetch parameters, bind to uplink device if known
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#
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trm_fetchparm="--silent --show-error --location --fail --referer http://www.example.com --retry $((trm_maxwait / 6)) --retry-delay $((trm_maxwait / 6)) --max-time $((trm_maxwait / 6))"
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device="$("${trm_ifstatuscmd}" "${trm_iface}" | "${trm_jsoncmd}" -ql1 -e '@.device')"
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[ -n "${device}" ] && trm_fetchparm="${trm_fetchparm} --interface ${device}"
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f_log "debug" "f_conf ::: frontend: ${trm_fver}, backend: ${trm_bver}, sys_ver: ${trm_sysver}, fetch_parm: ${trm_fetchparm:-"-"}"
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}
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# travelmate pid file handling
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#
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f_rmpid() {
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local ppid pid
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if [ -s "${trm_pidfile}" ]; then
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ppid="$("${trm_catcmd}" "${trm_pidfile}" 2>/dev/null)"
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if [ -n "${ppid}" ]; then
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pid="$("${trm_pgrepcmd}" -nf "sleep ${trm_timeout} 0" -P ${ppid} 2>/dev/null)"
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[ -n "${pid}" ] && "${trm_killcmd}" -INT ${pid} 2>/dev/null
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fi
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fi
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f_log "debug" "f_rmpid ::: ppid: ${ppid:-"-"}, pid: ${pid:-"-"}, timeout: ${trm_timeout}"
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}
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# trim helper function
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#
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f_trim() {
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local trim="${1}"
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trim="${trim#"${trim%%[![:space:]]*}"}"
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trim="${trim%"${trim##*[![:space:]]}"}"
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printf "%s" "${trim}"
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}
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# wifi helper function
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#
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f_wifi() {
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local parse status up pending radio radio_up timeout="0"
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# trigger wifi reload, then poll each radio until ready (up=true, pending=false)
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#
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"${trm_wificmd}" reload
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for radio in ${trm_radiolist}; do
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while :; do
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# global timeout abort across all radios
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#
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if [ "${timeout}" -ge "${trm_maxwait}" ]; then
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break 2
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fi
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status="$("${trm_wificmd}" status 2>/dev/null)"
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parse="$(printf "%s" "${status}" | "${trm_jsoncmd}" -e "@.${radio}.up" -e "@.${radio}.pending")"
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{
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IFS= read -r up
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IFS= read -r pending
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} <<-EOF
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${parse}
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EOF
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# not ready: trigger 'wifi up' once per radio, then keep polling
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#
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if [ "${up}" != "true" ] || [ "${pending}" != "false" ]; then
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if [ "${radio}" != "${radio_up}" ]; then
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"${trm_wificmd}" up "${radio}"
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radio_up="${radio}"
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fi
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timeout="$((timeout + 1))"
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sleep 1
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else
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continue 2
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fi
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done
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done
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# settle delay if all radios came up within budget
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#
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if [ "${timeout}" -lt "${trm_maxwait}" ]; then
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sleep "$((trm_maxwait / 6))"
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timeout="$((timeout + (trm_maxwait / 6)))"
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fi
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f_log "debug" "f_wifi ::: radio_list: ${trm_radiolist}, ssid_filter: ${trm_ssidfilter:-"-"}, radio: ${radio}, timeout: ${timeout}"
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}
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# vpn helper function
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#
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f_vpn() {
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local rc info iface vpn vpn_service vpn_iface vpn_instance vpn_status vpn_action="${1}"
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# only proceed when vpn handling is enabled and known interfaces exist
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#
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if [ "${trm_vpn}" = "1" ] && [ -n "${trm_vpninfolist}" ]; then
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vpn="$(f_getval "vpn")"
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vpn_service="$(f_getval "vpnservice")"
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vpn_iface="$(f_getval "vpniface")"
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# initial cleanup: tear down all known vpn ifaces and openvpn instances
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#
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if [ ! -f "${trm_vpnfile}" ] || { [ -f "${trm_vpnfile}" ] && [ "${vpn_action}" = "enable" ]; }; then
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for info in ${trm_vpninfolist}; do
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iface="${info%%&&*}"
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vpn_status="$("${trm_ifstatuscmd}" "${iface}" | "${trm_jsoncmd}" -ql1 -e '@.up')"
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if [ "${vpn_status}" = "true" ]; then
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/sbin/ifdown "${iface}"
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"${trm_ubuscmd}" -S call network.interface."${iface}" remove >/dev/null 2>&1
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f_log "info" "take down vpn interface '${iface}' (initial)"
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fi
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[ "${iface}" = "${info}" ] && vpn_instance="" || vpn_instance="${info##*&&}"
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if [ -x "/etc/init.d/openvpn" ] && [ -n "${vpn_instance}" ] && /etc/init.d/openvpn running "${vpn_instance}"; then
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/etc/init.d/openvpn stop "${vpn_instance}"
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f_log "info" "take down openvpn instance '${vpn_instance}' (initial)"
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fi
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done
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rm -f "${trm_vpnfile}"
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sleep 1
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# switch path: tear down only foreign vpn ifaces, keep the configured one
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#
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elif [ "${vpn}" = "1" ] && [ -n "${vpn_iface}" ] && [ "${vpn_action}" = "enable_keep" ]; then
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for info in ${trm_vpninfolist}; do
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iface="${info%%&&*}"
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[ "${iface}" = "${info}" ] && vpn_instance="" || vpn_instance="${info##*&&}"
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vpn_status="$("${trm_ifstatuscmd}" "${iface}" | "${trm_jsoncmd}" -ql1 -e '@.up')"
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if [ "${vpn_status}" = "true" ] && [ "${iface}" != "${vpn_iface}" ]; then
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/sbin/ifdown "${iface}"
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f_log "info" "take down vpn interface '${iface}' (switch)"
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if [ -x "/etc/init.d/openvpn" ] && [ -n "${vpn_instance}" ] && /etc/init.d/openvpn running "${vpn_instance}"; then
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/etc/init.d/openvpn stop "${vpn_instance}"
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f_log "info" "take down openvpn instance '${vpn_instance}' (switch)"
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fi
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rc="1"
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fi
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if [ "${rc}" = "1" ]; then
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rm -f "${trm_vpnfile}"
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sleep 1
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break
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fi
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done
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fi
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# invoke external vpn program for valid enable/disable transitions
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#
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if [ -x "${trm_vpnpgm}" ] && [ -n "${vpn_service}" ] && [ -n "${vpn_iface}" ]; then
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if { [ "${vpn_action}" = "disable" ] && [ -f "${trm_vpnfile}" ]; } ||
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{ [ "${vpn}" != "1" ] && [ "${vpn_action%%_*}" = "enable" ] && [ -f "${trm_vpnfile}" ]; } ||
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{ [ -d "${trm_ntplock}" ] && [ "${vpn}" = "1" ] && [ "${vpn_action%%_*}" = "enable" ] && [ ! -f "${trm_vpnfile}" ]; }; then
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if [ "${trm_connection%%/*}" = "net ok" ] || [ "${vpn_action}" = "disable" ]; then
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for info in ${trm_vpninfolist}; do
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iface="${info%%&&*}"
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if [ "${iface}" = "${vpn_iface}" ]; then
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[ "${iface}" = "${info}" ] && vpn_instance="" || vpn_instance="${info##*&&}"
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break
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fi
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done
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"${trm_vpnpgm}" "${vpn:-"0"}" "${vpn_action}" "${vpn_service}" "${vpn_iface}" "${vpn_instance}" >/dev/null 2>&1
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rc="${?}"
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fi
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fi
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[ -n "${rc}" ] && f_genstatus
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fi
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fi
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f_log "debug" "f_vpn ::: vpn: ${trm_vpn:-"-"}, enabled: ${vpn:-"-"}, action: ${vpn_action}, vpn_service: ${vpn_service:-"-"}, vpn_iface: ${vpn_iface:-"-"}, vpn_instance: ${vpn_instance:-"-"}, vpn_infolist: ${trm_vpninfolist:-"-"}, connection: ${trm_connection%%/*}, rc: ${rc:-"-"}"
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}
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# mac helper function
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#
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f_mac() {
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local raw result macaddr action="${1}" section="${2}"
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# set mac address for wifi station interface, with optional randomization (LAA) or fallback to driver-assigned mac via ubus
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#
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if [ "${action}" = "set" ]; then
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macaddr="$(f_getval "macaddr")"
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# use macaddr from uplink config
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#
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if [ -n "${macaddr}" ]; then
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result="${macaddr}"
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uci_set "wireless" "${section}" "macaddr" "${result}"
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# generate random LAA mac (second nibble forced to 2/6/A/E)
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#
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elif [ "${trm_randomize}" = "1" ]; then
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result="$(hexdump -n6 -ve '/1 "%.02X "' /dev/urandom 2>/dev/null |
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"${trm_awkcmd}" -v local="2,6,A,E" 'BEGIN{srand()}NR==1{split(local,b,",");
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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" "${result}"
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# clear override, fall back to driver-assigned mac via ubus
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#
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else
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uci_remove "wireless" "${section}" "macaddr" 2>/dev/null
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raw="$("${trm_ubuscmd}" -S call network.wireless status 2>/dev/null)"
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result="$(printf "%s" "${raw}" | "${trm_jsoncmd}" -ql1 -e '@.*.interfaces[@.config.mode="sta"].config.macaddr')"
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fi
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# get mac address for wifi station interface, with optional fallback to ubus
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#
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elif [ "${action}" = "get" ]; then
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result="$(uci_get "wireless" "${section}" "macaddr")"
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if [ -z "${result}" ]; then
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raw="$("${trm_ubuscmd}" -S call network.wireless status 2>/dev/null)"
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result="$(printf "%s" "${raw}" | "${trm_jsoncmd}" -ql1 -e '@.*.interfaces[@.config.mode="sta"].config.macaddr')"
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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:-"-"}, macaddr: ${macaddr:-"-"}, result: ${result:-"-"}"
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}
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# get openvpn information
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#
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f_getovpn() {
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local file instance device
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# scan /etc/openvpn/*.conf and *.ovpn files, extract dev and instance name
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#
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for file in /etc/openvpn/*.conf /etc/openvpn/*.ovpn; do
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if [ -f "${file}" ]; then
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instance="${file##*/}"
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instance="${instance%.conf}"
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instance="${instance%.ovpn}"
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device="$("${trm_awkcmd}" '/^[[:space:]]*dev /{print $2}' "${file}")"
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# normalize bare tun/tap to tun0/tap0
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#
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[ "${device}" = "tun" ] && device="tun0"
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[ "${device}" = "tap" ] && device="tap0"
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if [ -n "${device}" ] && [ -n "${instance}" ]; then
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case " ${trm_ovpninfolist} " in
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*" ${device}&&"*) ;;
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*) trm_ovpninfolist="${trm_ovpninfolist} ${device}&&${instance}" ;;
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esac
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fi
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fi
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done
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# additionally merge uci-managed openvpn instances
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#
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uci_config() {
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local device section="${1}"
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device="$(uci_get "openvpn" "${section}" "dev")"
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[ "${device}" = "tun" ] && device="tun0"
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[ "${device}" = "tap" ] && device="tap0"
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if [ -n "${device}" ]; then
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case " ${trm_ovpninfolist} " in
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*" ${device}&&"*) ;;
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*) trm_ovpninfolist="${trm_ovpninfolist} ${device}&&${section}" ;;
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esac
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fi
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}
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if [ -f "/etc/config/openvpn" ]; then
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config_load openvpn
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config_foreach uci_config "openvpn"
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fi
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f_log "debug" "f_getovpn ::: ovpn_infolist: ${trm_ovpninfolist:-"-"}"
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}
|
|
|
|
# get logical vpn network interfaces
|
|
#
|
|
f_getvpn() {
|
|
local info proto device iface="${1}" match="1"
|
|
|
|
# read proto and device from network config
|
|
#
|
|
proto="$(uci_get "network" "${iface}" "proto")"
|
|
device="$(uci_get "network" "${iface}" "device")"
|
|
|
|
# optional filter: only handle ifaces listed in trm_vpnifacelist
|
|
#
|
|
if [ -n "${trm_vpnifacelist}" ]; then
|
|
match="0"
|
|
case " ${trm_vpnifacelist} " in
|
|
*" ${iface} "*) match="1" ;;
|
|
esac
|
|
fi
|
|
|
|
# only proceed if proto is wireguard or none with matching openvpn device, and optional iface filter matches
|
|
#
|
|
if [ "${match}" = "1" ]; then
|
|
|
|
# wireguard: append iface (no instance), deduped
|
|
#
|
|
if [ "${proto}" = "wireguard" ]; then
|
|
case " ${trm_vpninfolist} " in
|
|
*" ${iface} "* | *" ${iface}&&"*) ;;
|
|
*) trm_vpninfolist="$(f_trim "${trm_vpninfolist} ${iface}")" ;;
|
|
esac
|
|
|
|
# openvpn (proto=none + device): lazy-populate ovpn list, then map device -> instance
|
|
#
|
|
elif [ "${proto}" = "none" ] && [ -n "${device}" ]; then
|
|
if [ -z "${trm_ovpninfolist}" ]; then
|
|
f_getovpn
|
|
fi
|
|
for info in ${trm_ovpninfolist}; do
|
|
if [ "${info%%&&*}" = "${device}" ]; then
|
|
case " ${trm_vpninfolist} " in
|
|
*" ${iface} "* | *" ${iface}&&"*) ;;
|
|
*)
|
|
trm_vpninfolist="$(f_trim "${trm_vpninfolist} ${iface}&&${info##*&&}")"
|
|
break
|
|
;;
|
|
esac
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
|
|
f_log "debug" "f_getvpn ::: iface: ${iface:-"-"}, proto: ${proto:-"-"}, device: ${device:-"-"}, vpn_ifacelist: ${trm_vpnifacelist:-"-"}, vpn_infolist: ${trm_vpninfolist:-"-"}"
|
|
}
|
|
|
|
# get wan gateway addresses
|
|
#
|
|
f_getgw() {
|
|
local wan4_if wan4_gw wan6_if wan6_gw result="false"
|
|
|
|
network_flush_cache
|
|
network_find_wan wan4_if
|
|
network_find_wan6 wan6_if
|
|
network_get_gateway wan4_gw "${wan4_if}"
|
|
network_get_gateway6 wan6_gw "${wan6_if}"
|
|
if [ -n "${wan4_gw}" ] || [ -n "${wan6_gw}" ]; then
|
|
result="true"
|
|
fi
|
|
printf "%s" "${result}"
|
|
|
|
f_log "debug" "f_getgw ::: wan4_gw: ${wan4_gw:-"-"}, wan6_gw: ${wan6_gw:-"-"}, result: ${result}"
|
|
}
|
|
|
|
# get uplink config section
|
|
#
|
|
f_getcfg() {
|
|
local t_radio t_essid t_bssid radio="${1}" essid="${2}" bssid="${3}" cnt="0"
|
|
|
|
trm_uplinkcfg=""
|
|
while uci_get "travelmate" "@uplink[${cnt}]" >/dev/null 2>&1; do
|
|
t_radio="$(uci_get "travelmate" "@uplink[${cnt}]" "device")"
|
|
t_essid="$(uci_get "travelmate" "@uplink[${cnt}]" "ssid")"
|
|
t_bssid="$(uci_get "travelmate" "@uplink[${cnt}]" "bssid")"
|
|
if [ -n "${radio}" ] && [ -n "${essid}" ] &&
|
|
[ "${t_radio}" = "${radio}" ] && [ "${t_essid}" = "${essid}" ] && [ "${t_bssid}" = "${bssid}" ]; then
|
|
trm_uplinkcfg="@uplink[${cnt}]"
|
|
break
|
|
fi
|
|
cnt="$((cnt + 1))"
|
|
done
|
|
}
|
|
|
|
# get travelmate option value in 'uplink' sections
|
|
#
|
|
f_getval() {
|
|
local option="${1}" default="${2}"
|
|
|
|
if [ -n "${trm_uplinkcfg}" ]; then
|
|
uci_get "travelmate" "${trm_uplinkcfg}" "${option}" "${default}"
|
|
else
|
|
printf "%s" "${default}"
|
|
fi
|
|
}
|
|
|
|
# set 'wifi-device' sections
|
|
#
|
|
f_setdev() {
|
|
local disabled radio="${1}" match="0"
|
|
|
|
# match radio against optional filter (trm_radio); empty list -> match all not yet tracked
|
|
#
|
|
if [ -z "${trm_radio}" ]; then
|
|
case " ${trm_radiolist} " in
|
|
*" ${radio} "*) ;;
|
|
*) match="1" ;;
|
|
esac
|
|
else
|
|
case " ${trm_radio} " in
|
|
*" ${radio} "*) match="1" ;;
|
|
esac
|
|
fi
|
|
|
|
# append (or prepend on reverse mode) to radiolist and ensure device is enabled
|
|
#
|
|
if [ "${match}" = "1" ]; then
|
|
if [ "${trm_revradio}" = "1" ]; then
|
|
trm_radiolist="$(f_trim "${radio} ${trm_radiolist}")"
|
|
else
|
|
trm_radiolist="$(f_trim "${trm_radiolist} ${radio}")"
|
|
fi
|
|
disabled="$(uci_get "wireless" "${radio}" "disabled")"
|
|
if [ "${disabled}" = "1" ]; then
|
|
uci_set wireless "${radio}" "disabled" "0"
|
|
fi
|
|
fi
|
|
|
|
f_log "debug" "f_setdev ::: device: ${radio:-"-"}, radio: ${trm_radio:-"-"}, radio_list: ${trm_radiolist:-"-"}, disabled: ${disabled:-"-"}"
|
|
}
|
|
|
|
# set 'wifi-iface' sections
|
|
#
|
|
f_setif() {
|
|
local mode radio essid bssid enabled disabled section="${1}" proactive="${2}"
|
|
|
|
# skip sections whose radio is not in the active radiolist
|
|
#
|
|
radio="$(uci_get "wireless" "${section}" "device")"
|
|
case " ${trm_radiolist} " in
|
|
*" ${radio} "*) ;;
|
|
*) return ;;
|
|
esac
|
|
|
|
# read iface config and resolve uplink-enabled flag from travelmate config
|
|
#
|
|
mode="$(uci_get "wireless" "${section}" "mode")"
|
|
essid="$(uci_get "wireless" "${section}" "ssid")"
|
|
bssid="$(uci_get "wireless" "${section}" "bssid")"
|
|
disabled="$(uci_get "wireless" "${section}" "disabled")"
|
|
|
|
f_getcfg "${radio}" "${essid}" "${bssid}"
|
|
enabled="$(f_getval "enabled" "0")"
|
|
|
|
# handle wifi-iface sections in 'sta' mode, apply uplink-enabled flag from travelmate config, and build active sta list for status reporting
|
|
#
|
|
if [ "${mode}" = "sta" ]; then
|
|
|
|
# disable iface when uplink is off, or when currently active but not in proactive-connected state
|
|
#
|
|
if [ "${enabled}" = "0" ] || { { [ -z "${disabled}" ] || [ "${disabled}" = "0" ]; } &&
|
|
{ [ "${proactive}" = "0" ] || [ "${trm_ifstatus}" != "true" ]; }; }; then
|
|
uci_set "wireless" "${section}" "disabled" "1"
|
|
|
|
# proactive mode while connected: keep first active sta, disable any further matches
|
|
#
|
|
elif [ "${enabled}" = "1" ] && [ "${disabled}" = "0" ] && [ "${trm_ifstatus}" = "true" ] && [ "${proactive}" = "1" ]; then
|
|
if [ -z "${trm_activesta}" ]; then
|
|
trm_activesta="${section}"
|
|
else
|
|
uci_set "wireless" "${section}" "disabled" "1"
|
|
fi
|
|
fi
|
|
|
|
# track all enabled stations for the connection loop
|
|
#
|
|
if [ "${enabled}" = "1" ]; then
|
|
trm_stalist="$(f_trim "${trm_stalist} ${section}-${radio}")"
|
|
fi
|
|
fi
|
|
|
|
f_log "debug" "f_setif ::: uplink_config: ${trm_uplinkcfg:-"-"}, section: ${section}, enabled: ${enabled}, active_sta: ${trm_activesta:-"-"}"
|
|
}
|
|
|
|
# subnet helper function
|
|
#
|
|
f_subnet() {
|
|
local lan wan wan_net conn_state="${trm_connection%%/*}"
|
|
|
|
# skip when connection state hasn't changed and subnet is already set
|
|
#
|
|
if [ "${conn_state}" = "${trm_subnet_last}" ] && [ -n "${trm_subnet}" ]; then
|
|
return
|
|
fi
|
|
|
|
# resolve uplink (wan) subnet via netifd, then ipcalc to network/cidr
|
|
#
|
|
network_flush_cache
|
|
network_get_subnet wan "${trm_iface:-"trm_wwan"}"
|
|
[ -n "${wan}" ] && wan_net="$("${trm_ipcalccmd}" "${wan}" | "${trm_awkcmd}" 'BEGIN{FS="="}/NETWORK/{printf "%s",$2}')"
|
|
|
|
# lazy-cache lan subnet (assumed stable for the lifetime of the daemon)
|
|
#
|
|
if [ -z "${trm_lannet}" ]; then
|
|
network_get_subnet lan "${trm_laniface:-"lan"}"
|
|
[ -n "${lan}" ] && trm_lannet="$("${trm_ipcalccmd}" "${lan}" | "${trm_awkcmd}" 'BEGIN{FS="="}/NETWORK/{printf "%s",$2}')"
|
|
fi
|
|
|
|
# warn on lan/wan subnet collision
|
|
#
|
|
if [ -n "${trm_lannet}" ] && [ -n "${wan_net}" ] && [ "${trm_lannet}" = "${wan_net}" ]; then
|
|
f_log "info" "uplink network '${wan_net}' conflicts with router LAN network, please adjust your network settings"
|
|
fi
|
|
|
|
# compose result and remember last state for cache
|
|
#
|
|
trm_subnet="${wan_net:-"-"} (lan: ${trm_lannet:-"-"})"
|
|
trm_subnet_last="${conn_state}"
|
|
|
|
f_log "debug" "f_subnet ::: lan: ${trm_lannet:-"-"}, wan: ${wan_net:-"-"}"
|
|
}
|
|
|
|
# add open uplinks
|
|
#
|
|
f_addsta() {
|
|
local cnt pattern wifi_cfg trm_cfg new_uplink="1" offset="1" radio="${1}" essid="${2}"
|
|
|
|
# ssid filter: skip if essid matches any pattern in trm_ssidfilter
|
|
#
|
|
for pattern in ${trm_ssidfilter}; do
|
|
case "${essid}" in
|
|
${pattern})
|
|
f_log "info" "open uplink filtered out '${radio}/${essid}/${pattern}'"
|
|
return 0
|
|
;;
|
|
esac
|
|
done
|
|
|
|
# within quota, scan existing wifi-iface sections for duplicates and count offset
|
|
#
|
|
if [ "${trm_maxautoadd}" = "0" ] || [ "${trm_autoaddcnt:-0}" -lt "${trm_maxautoadd}" ]; then
|
|
config_cb() {
|
|
local type="${1}" name="${2}"
|
|
|
|
if [ "${type}" = "wifi-iface" ]; then
|
|
if [ "$(uci_get "wireless.${name}.ssid")" = "${essid}" ] &&
|
|
[ "$(uci_get "wireless.${name}.device")" = "${radio}" ]; then
|
|
new_uplink="0"
|
|
return 0
|
|
fi
|
|
offset="$((offset + 1))"
|
|
fi
|
|
}
|
|
config_load wireless
|
|
else
|
|
new_uplink="0"
|
|
fi
|
|
|
|
# pick first free 'trm_uplinkN' section name
|
|
#
|
|
if [ "${new_uplink}" = "1" ]; then
|
|
wifi_cfg="trm_uplink$((offset + 1))"
|
|
while [ -n "$(uci_get "wireless.${wifi_cfg}")" ]; do
|
|
offset="$((offset + 1))"
|
|
wifi_cfg="trm_uplink${offset}"
|
|
done
|
|
|
|
# create new wifi-iface section (sta, open, initially disabled)
|
|
#
|
|
uci -q batch <<-EOC
|
|
set wireless."${wifi_cfg}"="wifi-iface"
|
|
set wireless."${wifi_cfg}".mode="sta"
|
|
set wireless."${wifi_cfg}".network="${trm_iface}"
|
|
set wireless."${wifi_cfg}".device="${radio}"
|
|
set wireless."${wifi_cfg}".ssid="${essid}"
|
|
set wireless."${wifi_cfg}".encryption="none"
|
|
set wireless."${wifi_cfg}".disabled="1"
|
|
EOC
|
|
|
|
# create matching travelmate uplink section
|
|
#
|
|
trm_cfg="$(uci -q add travelmate uplink)"
|
|
uci -q batch <<-EOC
|
|
set travelmate."${trm_cfg}".device="${radio}"
|
|
set travelmate."${trm_cfg}".ssid="${essid}"
|
|
set travelmate."${trm_cfg}".opensta="1"
|
|
set travelmate."${trm_cfg}".enabled="1"
|
|
EOC
|
|
|
|
# inherit default vpn settings if globally configured
|
|
#
|
|
if [ -n "${trm_stdvpnservice}" ] && [ -n "${trm_stdvpniface}" ]; then
|
|
uci -q batch <<-EOC
|
|
set travelmate."${trm_cfg}".vpnservice="${trm_stdvpnservice}"
|
|
set travelmate."${trm_cfg}".vpniface="${trm_stdvpniface}"
|
|
set travelmate."${trm_cfg}".vpn="1"
|
|
EOC
|
|
fi
|
|
|
|
# bump autoadd counter, commit, reload wifi, signal UI reload
|
|
#
|
|
cnt="$(uci_get "travelmate" "global" "trm_autoaddcnt" "0")"
|
|
cnt="$((cnt + 1))"
|
|
uci_set "travelmate" "global" "trm_autoaddcnt" "${cnt}"
|
|
|
|
[ -n "$(uci -q changes "travelmate")" ] && uci_commit "travelmate"
|
|
[ -n "$(uci -q changes "wireless")" ] && uci_commit "wireless"
|
|
f_wifi
|
|
if [ ! -f "${trm_refreshfile}" ]; then
|
|
printf "%s" "ui_reload" >"${trm_refreshfile}"
|
|
fi
|
|
f_log "info" "open uplink '${radio}/${essid}' added to wireless config"
|
|
printf "%s" "${wifi_cfg}-${radio}"
|
|
fi
|
|
|
|
f_log "debug" "f_addsta ::: radio: ${radio:-"-"}, essid: ${essid}, autoaddcnt/maxautoadd: ${cnt:-"${trm_autoaddcnt}"}/${trm_maxautoadd:-"-"}, new_uplink: ${new_uplink}, offset: ${offset}"
|
|
}
|
|
|
|
# check net status
|
|
#
|
|
f_net() {
|
|
local parse err_msg raw json_raw html_raw html_cp js_cp json_ec json_rc json_cp json_cp_url json_ed result="net nok"
|
|
|
|
# fetch captive-detection url, curl appends '%{json}' metadata after the response body
|
|
#
|
|
raw="$("${trm_fetchcmd}" ${trm_fetchparm} --user-agent "${trm_useragent}" --header "Cache-Control: no-cache, no-store, must-revalidate, max-age=0" --write-out "%{json}" "${trm_captiveurl}")"
|
|
json_raw="${raw#*\{}"
|
|
html_raw="${raw%%\{*}"
|
|
|
|
# parse curl metadata: exit code, http response code, final redirect target
|
|
#
|
|
if [ -n "${json_raw}" ]; then
|
|
parse="$(printf "%s" "{${json_raw}" | "${trm_jsoncmd}" -e '@.exitcode' -e '@.response_code' -e '@.redirect_url')"
|
|
{
|
|
IFS= read -r json_ec
|
|
IFS= read -r json_rc
|
|
IFS= read -r json_cp_url
|
|
} <<-EOF
|
|
${parse}
|
|
EOF
|
|
|
|
# extract lowercased host portion of the redirect url
|
|
#
|
|
json_cp="$(printf "%s" "${json_cp_url}" | "${trm_awkcmd}" 'BEGIN{FS="/"}{printf "%s",tolower($3)}')"
|
|
if [ "${json_ec}" = "0" ]; then
|
|
|
|
# http redirect present: captive portal at redirect host
|
|
#
|
|
if [ -n "${json_cp}" ]; then
|
|
result="net cp '${json_cp}'"
|
|
|
|
# no http redirect: scan body for meta-refresh / js location.href redirects
|
|
#
|
|
else
|
|
if [ "${json_rc}" = "200" ] || [ "${json_rc}" = "204" ]; then
|
|
html_cp="$(printf "%s" "${html_raw}" | "${trm_awkcmd}" 'match(tolower($0),/^.*<meta[ \t]+http-equiv=['\''"]*refresh.*[ \t;]url=/){print substr(tolower($0),RLENGTH+1)}' | "${trm_awkcmd}" 'BEGIN{FS="[:/]"}{printf "%s",$4;exit}')"
|
|
js_cp="$(printf "%s" "${html_raw}" | "${trm_awkcmd}" 'match(tolower($0),/^.*location\.href=['\''"]*/){print substr(tolower($0),RLENGTH+1)}' | "${trm_awkcmd}" 'BEGIN{FS="[:/]"}{printf "%s",$4;exit}')"
|
|
if [ -n "${html_cp}" ]; then
|
|
result="net cp '${html_cp}'"
|
|
elif [ -n "${js_cp}" ]; then
|
|
result="net cp '${js_cp}'"
|
|
else
|
|
result="net ok"
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# curl error path: extract errormsg and any trailing domain token
|
|
#
|
|
else
|
|
err_msg="$(printf "%s" "{${json_raw}" | "${trm_jsoncmd}" -ql1 -e '@.errormsg')"
|
|
json_ed="$(printf "%s" "{${err_msg}" | "${trm_awkcmd}" '/([[:alnum:]_-]{1,63}\.)+[[:alpha:]]+$/{printf "%s",tolower($NF)}')"
|
|
if [ "${json_ec}" = "6" ]; then
|
|
if [ -n "${json_ed}" ] && [ "${json_ed}" != "${trm_captiveurl#http*://*}" ]; then
|
|
result="net cp '${json_ed}'"
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
printf "%s" "${result}"
|
|
|
|
f_log "debug" "f_net ::: timeout: $((trm_maxwait / 6)), cp (json/html/js): ${json_cp:-"-"}/${html_cp:-"-"}/${js_cp:-"-"}, result: ${result}, error (rc/msg): ${json_ec}/${err_msg:-"-"}, url: ${trm_captiveurl}"
|
|
}
|
|
|
|
# check interface status
|
|
#
|
|
f_check() {
|
|
local rc raw ifname dev_status result login_script login_script_args cp_domain station_id ifquality
|
|
local wait_time="0" enabled="1" mode="${1}" status="${2}" sta_radio="${3}" sta_essid="${4}" sta_bssid="${5}"
|
|
|
|
# parse station id from runtime json (initial/dev mode only)
|
|
#
|
|
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="${sta_bssid//-/}"
|
|
fi
|
|
f_getcfg "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
|
|
# resolve uplink 'enabled' flag (skip for rev mode and unset stations)
|
|
#
|
|
if [ "${mode}" != "rev" ] && [ -n "${sta_radio}" ] && [ "${sta_radio}" != "-" ] && [ -n "${sta_essid}" ] && [ "${sta_essid}" != "-" ]; then
|
|
enabled="$(f_getval "enabled" "0")"
|
|
fi
|
|
|
|
# trigger wifi reload on disconnects (non-initial/dev) or on disabled-uplink dev events
|
|
#
|
|
if { [ "${mode}" != "initial" ] && [ "${mode}" != "dev" ] && [ "${status}" = "false" ]; } ||
|
|
{ [ "${mode}" = "dev" ] && { [ "${status}" = "false" ] || { [ "${trm_ifstatus}" != "${status}" ] && [ "${enabled}" = "0" ]; }; }; }; then
|
|
f_wifi
|
|
fi
|
|
|
|
# sta mode: bounce travelmate interface via ubus
|
|
#
|
|
if [ "${mode}" = "sta" ]; then
|
|
"${trm_ubuscmd}" -S call network.interface."${trm_iface}" down >/dev/null 2>&1
|
|
"${trm_ubuscmd}" -S call network.interface."${trm_iface}" up >/dev/null 2>&1
|
|
if ! "${trm_ubuscmd}" -t "$((trm_maxwait / 6))" wait_for network.interface."${trm_iface}" >/dev/null 2>&1; then
|
|
f_log "info" "travelmate interface '${trm_iface}' does not appear on ubus on ifup event"
|
|
fi
|
|
sleep 1
|
|
fi
|
|
|
|
# polling loop, bounded by trm_maxwait seconds
|
|
#
|
|
while [ "${wait_time}" -le "${trm_maxwait}" ]; do
|
|
[ "${wait_time}" -gt "0" ] && sleep 1
|
|
wait_time="$((wait_time + 1))"
|
|
dev_status="$("${trm_ubuscmd}" -S call network.wireless status 2>/dev/null)"
|
|
if [ -n "${dev_status}" ]; then
|
|
|
|
# dev mode: persist status change and exit
|
|
#
|
|
if [ "${mode}" = "dev" ]; then
|
|
if [ "${trm_ifstatus}" != "${status}" ]; then
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
fi
|
|
if [ "${status}" = "false" ]; then
|
|
sleep "$((trm_maxwait / 6))"
|
|
fi
|
|
break
|
|
|
|
# rev mode: drop connection state and exit
|
|
#
|
|
elif [ "${mode}" = "rev" ]; then
|
|
trm_connection=""
|
|
trm_ifstatus="${status}"
|
|
break
|
|
|
|
# initial/sta mode: query active sta interface
|
|
#
|
|
else
|
|
ifname="$(printf "%s" "${dev_status}" | "${trm_jsoncmd}" -ql1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
|
|
if [ -n "${ifname}" ] && [ "${enabled}" = "1" ]; then
|
|
raw="$("${trm_ubuscmd}" -S call iwinfo info "{\"device\":\"${ifname}\"}" 2>/dev/null | "${trm_jsoncmd}" -ql1 -e '@.signal')"
|
|
if [ -n "${raw}" ] && [ "${raw}" -ge "-120" ]; then
|
|
ifquality="$((2 * (raw + 100)))"
|
|
[ "${ifquality}" -gt "100" ] && ifquality="100"
|
|
[ "${ifquality}" -lt "0" ] && ifquality="0"
|
|
fi
|
|
|
|
# no signal: detect connection drop or overall wait timeout
|
|
#
|
|
if [ -z "${ifquality}" ]; then
|
|
trm_ifstatus="$("${trm_ifstatuscmd}" "${trm_iface}" | "${trm_jsoncmd}" -ql1 -e '@.up')"
|
|
if { [ -n "${trm_connection}" ] && [ "${trm_ifstatus}" = "false" ]; } || [ "${wait_time}" -eq "${trm_maxwait}" ]; then
|
|
if [ -n "${trm_connection}" ] && [ "${trm_ifstatus}" = "false" ]; then
|
|
f_log "info" "no signal from uplink"
|
|
else
|
|
f_log "info" "uplink connection could not be established after ${trm_maxwait} seconds"
|
|
fi
|
|
f_vpn "disable"
|
|
trm_connection=""
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
fi
|
|
continue
|
|
|
|
# acceptable signal: verify ifup state and run net/captive checks
|
|
#
|
|
elif [ "${ifquality}" -ge "${trm_minquality}" ]; then
|
|
trm_ifstatus="$("${trm_ifstatuscmd}" "${trm_iface}" | "${trm_jsoncmd}" -ql1 -e '@.up')"
|
|
if [ "${trm_ifstatus}" = "true" ]; then
|
|
result="$(f_net)"
|
|
|
|
# captive portal: allow cp domain in dnsmasq, then optionally run login script
|
|
#
|
|
if [ "${trm_captive}" = "1" ]; then
|
|
while :; do
|
|
cp_domain="$(printf "%s" "${result}" | "${trm_awkcmd}" -F '['\''| ]' '/^net cp/{printf "%s",$4}')"
|
|
if [ ! -x "/etc/init.d/dnsmasq" ] || [ ! -f "/etc/config/dhcp" ] || [ -z "${cp_domain}" ]; then
|
|
break
|
|
fi
|
|
case " $(uci_get "dhcp" "@dnsmasq[0]" "rebind_domain") " in
|
|
*" ${cp_domain} "*) break ;;
|
|
esac
|
|
uci_add_list "dhcp" "@dnsmasq[0]" "rebind_domain" "${cp_domain}"
|
|
[ -n "$(uci -q changes "dhcp")" ] && uci_commit "dhcp"
|
|
/etc/init.d/dnsmasq reload
|
|
f_log "info" "captive portal domain '${cp_domain}' added to to dhcp rebind whitelist"
|
|
result="$(f_net)"
|
|
done
|
|
if [ -n "${cp_domain}" ]; then
|
|
trm_connection="${result:-"-"}/${ifquality}"
|
|
f_genstatus
|
|
login_script="$(f_getval "script")"
|
|
if [ -x "${login_script}" ]; then
|
|
login_script_args="$(f_getval "script_args")"
|
|
"${login_script}" ${login_script_args} >/dev/null 2>&1
|
|
rc="${?}"
|
|
f_log "info" "captive portal login script for '${cp_domain}' has been finished with rc '${rc}'"
|
|
if [ "${rc}" = "0" ]; then
|
|
result="$(f_net)"
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# no internet: tear down vpn, exit early if netcheck enabled
|
|
#
|
|
if [ "${result}" = "net nok" ]; then
|
|
f_vpn "disable"
|
|
if [ "${trm_netcheck}" = "1" ]; then
|
|
f_log "info" "uplink has no internet"
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
fi
|
|
fi
|
|
|
|
# success: persist connection state and exit
|
|
#
|
|
trm_connection="${result:-"-"}/${ifquality}"
|
|
f_genstatus
|
|
break
|
|
fi
|
|
|
|
# signal below minquality on existing link: drop and exit
|
|
#
|
|
elif [ -n "${trm_connection}" ] && { [ "${trm_netcheck}" = "1" ] || [ "${mode}" = "initial" ]; }; then
|
|
f_log "info" "uplink is out of range (${ifquality}/${trm_minquality})"
|
|
f_vpn "disable"
|
|
trm_connection=""
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
|
|
# signal below minquality on initial/sta probe: bail out
|
|
#
|
|
elif [ "${mode}" = "initial" ] || [ "${mode}" = "sta" ]; then
|
|
trm_connection=""
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
fi
|
|
|
|
# sta interface vanished while connected
|
|
#
|
|
elif [ -n "${trm_connection}" ]; then
|
|
f_log "info" "uplink connection lost (interface gone)"
|
|
f_vpn "disable"
|
|
trm_connection=""
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
|
|
# initial probe, no sta interface present yet
|
|
#
|
|
elif [ "${mode}" = "initial" ]; then
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# initial mode safety net: empty wireless status -> exit loop
|
|
#
|
|
if [ "${mode}" = "initial" ]; then
|
|
if [ -n "${trm_connection}" ]; then
|
|
f_log "info" "uplink connection lost (interface down)"
|
|
f_vpn "disable"
|
|
trm_connection=""
|
|
fi
|
|
trm_ifstatus="${status}"
|
|
f_genstatus
|
|
break
|
|
fi
|
|
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/quality: ${trm_minquality}/${ifquality:-"-"}, captive: ${trm_captive}, netcheck: ${trm_netcheck}"
|
|
}
|
|
|
|
# get status information
|
|
#
|
|
f_getstatus() {
|
|
local key keylist value rtfile
|
|
|
|
rtfile="$(uci_get travelmate global trm_rtfile "${trm_rundir}/travelmate.runtime.json")"
|
|
json_load_file "${rtfile}" >/dev/null 2>&1
|
|
if json_select data >/dev/null 2>&1; then
|
|
printf "%s\n" "::: travelmate runtime information"
|
|
json_get_keys keylist
|
|
for key in ${keylist}; do
|
|
json_get_var value "${key}"
|
|
printf " + %-18s : %s\n" "${key}" "${value}"
|
|
done
|
|
else
|
|
printf "%s\n" "::: no travelmate runtime information available"
|
|
fi
|
|
}
|
|
|
|
# generate status information
|
|
#
|
|
f_genstatus() {
|
|
local parse s_captive s_proactive s_netcheck s_autoadd s_randomize s_eviltwin s_ntp s_vpn s_mail vpn vpn_iface
|
|
local section last_date sta_iface sta_radio sta_essid sta_bssid sta_mac dev_status status="${trm_ifstatus}" ntp_done="0" vpn_done="0" mail_done="0"
|
|
|
|
# get current connection information
|
|
#
|
|
if [ "${status}" = "true" ]; then
|
|
status="connected, ${trm_connection:-"-"}"
|
|
dev_status="$("${trm_ubuscmd}" -S call network.wireless status 2>/dev/null)"
|
|
parse="$(printf "%s" "${dev_status}" | "${trm_jsoncmd}" \
|
|
-e '@.*.interfaces[@.config.mode="sta"].section' \
|
|
-e '@.*.interfaces[@.config.mode="sta"].config.ssid' \
|
|
-e '@.*.interfaces[@.config.mode="sta"].config.macaddr' \
|
|
-e '@.*.interfaces[@.config.mode="sta"].config.network[0]' \
|
|
-e '@.*.interfaces[@.config.mode="sta"].config.bssid')"
|
|
{
|
|
IFS= read -r section
|
|
IFS= read -r sta_essid
|
|
IFS= read -r sta_mac
|
|
IFS= read -r sta_iface
|
|
IFS= read -r sta_bssid
|
|
} <<-EOF
|
|
${parse}
|
|
EOF
|
|
if [ -n "${section}" ]; then
|
|
sta_radio="$(uci_get "wireless" "${section}" "device")"
|
|
f_getcfg "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
fi
|
|
json_get_var last_date "last_run"
|
|
|
|
vpn="$(f_getval "vpn")"
|
|
if [ "${trm_vpn}" = "1" ] && [ -n "${trm_vpninfolist}" ] && [ "${vpn}" = "1" ] && [ -f "${trm_vpnfile}" ]; then
|
|
vpn_iface="$(f_getval "vpniface")"
|
|
vpn_done="1"
|
|
fi
|
|
elif [ "${status}" = "error" ]; then
|
|
trm_connection=""
|
|
status="program error"
|
|
else
|
|
trm_connection=""
|
|
status="processing"
|
|
fi
|
|
|
|
# fallback for missing last_run value
|
|
#
|
|
if [ -z "${last_date}" ]; then
|
|
last_date="$(date "+%Y.%m.%d-%H:%M:%S")"
|
|
fi
|
|
|
|
# check for presence of ntp lock file and mail notification conditions
|
|
#
|
|
if [ -d "${trm_ntplock}" ]; then
|
|
ntp_done="1"
|
|
fi
|
|
if [ "${trm_mail}" = "1" ] && [ -f "${trm_mailfile}" ]; then
|
|
mail_done="1"
|
|
fi
|
|
|
|
# convert flags to symbols
|
|
#
|
|
case "${trm_captive}" in "1") s_captive="✔" ;; *) s_captive="✘" ;; esac
|
|
case "${trm_proactive}" in "1") s_proactive="✔" ;; *) s_proactive="✘" ;; esac
|
|
case "${trm_netcheck}" in "1") s_netcheck="✔" ;; *) s_netcheck="✘" ;; esac
|
|
case "${trm_autoadd}" in "1") s_autoadd="✔" ;; *) s_autoadd="✘" ;; esac
|
|
case "${trm_randomize}" in "1") s_randomize="✔" ;; *) s_randomize="✘" ;; esac
|
|
case "${trm_eviltwin}" in "1") s_eviltwin="✔" ;; *) s_eviltwin="✘" ;; esac
|
|
case "${ntp_done}" in "1") s_ntp="✔" ;; *) s_ntp="✘" ;; esac
|
|
case "${vpn_done}" in "1") s_vpn="✔" ;; *) s_vpn="✘" ;; esac
|
|
case "${mail_done}" in "1") s_mail="✔" ;; *) s_mail="✘" ;; esac
|
|
|
|
# generate runtime status file
|
|
#
|
|
f_subnet
|
|
json_add_string "travelmate_status" "${status}"
|
|
json_add_string "frontend_ver" "${trm_fver}"
|
|
json_add_string "backend_ver" "${trm_bver}"
|
|
json_add_string "station_id" "${sta_radio:-"-"}/${sta_essid:-"-"}/${sta_bssid:-"-"}"
|
|
json_add_string "station_mac" "${sta_mac:-"-"}"
|
|
json_add_string "station_interfaces" "${sta_iface:-"-"}, ${vpn_iface:-"-"}"
|
|
json_add_string "station_subnet" "${trm_subnet:-"-"}"
|
|
json_add_string "run_flags" "captive: ${s_captive}, proactive: ${s_proactive}, netcheck: ${s_netcheck}, autoadd: ${s_autoadd}, randomize: ${s_randomize}, eviltwin: ${s_eviltwin}"
|
|
json_add_string "ext_hooks" "ntp: ${s_ntp}, vpn: ${s_vpn}, mail: ${s_mail}"
|
|
json_add_string "last_run" "${last_date}"
|
|
json_add_string "system" "${trm_sysver}"
|
|
json_dump >"${trm_rtfile}"
|
|
|
|
# send mail notification if enabled and conditions are met
|
|
#
|
|
if [ "${status%%, net ok/*}" = "connected" ] && [ "${trm_mail}" = "1" ] &&
|
|
[ -x "${trm_mailcmd}" ] && [ -n "${trm_mailreceiver}" ] && [ "${ntp_done}" = "1" ] && [ "${mail_done}" = "0" ]; then
|
|
if [ "${trm_vpn}" != "1" ] || [ "${vpn}" != "1" ] || [ -z "${trm_vpninfolist}" ] || [ "${vpn_done}" = "1" ]; then
|
|
: >"${trm_mailfile}"
|
|
mail_done="1"
|
|
f_mail
|
|
fi
|
|
fi
|
|
|
|
f_log "debug" "f_genstatus ::: section: ${section:-"-"}, status: ${status:-"-"}, sta_iface: ${sta_iface:-"-"}, sta_radio: ${sta_radio:-"-"}, sta_essid: ${sta_essid:-"-"}, sta_bssid: ${sta_bssid:-"-"}, ntp: ${ntp_done}, vpn: ${vpn:-"0"}/${vpn_done}, mail: ${trm_mail}/${mail_done}"
|
|
}
|
|
|
|
# send status mail
|
|
#
|
|
f_mail() {
|
|
local msmtp_debug mail_text
|
|
|
|
# load mail template
|
|
#
|
|
if [ -r "${trm_mailtemplate}" ]; then
|
|
. "${trm_mailtemplate}"
|
|
else
|
|
f_log "info" "no mail template"
|
|
fi
|
|
[ -z "${mail_text}" ] && f_log "info" "no mail content"
|
|
[ "${trm_debug}" = "1" ] && msmtp_debug="--debug"
|
|
|
|
# send mail
|
|
#
|
|
trm_mailhead="From: ${trm_mailsender}\nTo: ${trm_mailreceiver}\nSubject: ${trm_mailtopic}\nReply-to: ${trm_mailsender}\nMime-Version: 1.0\nContent-Type: text/html;charset=utf-8\nContent-Disposition: inline\n\n"
|
|
printf "%b" "${trm_mailhead}${mail_text}" | "${trm_mailcmd}" --timeout=10 ${msmtp_debug} -a "${trm_mailprofile}" "${trm_mailreceiver}" >/dev/null 2>&1
|
|
|
|
f_log "debug" "f_mail ::: notification: ${trm_mailnotification}, template: ${trm_mailtemplate}, profile: ${trm_mailprofile}, receiver: ${trm_mailreceiver}, rc: ${?}"
|
|
}
|
|
|
|
# write to syslog
|
|
#
|
|
f_log() {
|
|
local class="${1}" log_msg="${2}"
|
|
|
|
if [ -n "${log_msg}" ] && { [ "${class}" != "debug" ] || [ "${trm_debug}" = "1" ]; }; then
|
|
if [ -x "${trm_logcmd}" ]; then
|
|
"${trm_logcmd}" -p "${class}" -t "trm-${trm_bver:-"-"}[${$}]" "${log_msg::512}"
|
|
else
|
|
printf "%s %s %s\n" "${class}" "trm-${trm_bver:-"-"}[${$}]" "${log_msg::512}" >&2
|
|
fi
|
|
if [ "${class}" = "err" ] || [ "${class}" = "emerg" ]; then
|
|
trm_ifstatus="error"
|
|
[ -s "${trm_rtfile}" ] && f_genstatus
|
|
: >"${trm_pidfile}"
|
|
exit 1
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# wifi scan function
|
|
#
|
|
f_scan() {
|
|
local signal channel wpa_versions cipher auth result key keylist ssid bssid quality wpa_arr cipher_arr auth_arr radio="${1}" mode="${2}"
|
|
|
|
# return early on empty or failed scan result
|
|
#
|
|
result="$("${trm_ubuscmd}" -S call iwinfo scan "{\"device\":\"${radio}\"}" 2>/dev/null)"
|
|
[ -z "${result}" ] && return 0
|
|
|
|
# load and iterate over scan results and print relevant information
|
|
#
|
|
json_load "${result}" || return 0
|
|
json_select results 2>/dev/null || return 0
|
|
json_get_keys keylist
|
|
|
|
for key in ${keylist}; do
|
|
json_select "${key}" 2>/dev/null || continue
|
|
json_get_var bssid bssid
|
|
json_get_var ssid ssid
|
|
json_get_var signal signal
|
|
json_get_var channel channel
|
|
|
|
# clean up ssid from control characters and trim whitespace, then quote it (empty ssids are marked as 'hidden')
|
|
#
|
|
ssid="$(printf "%s" "${ssid}" | "${trm_awkcmd}" '{
|
|
gsub(/[[:cntrl:]]/, "");
|
|
sub(/^[ \t]+/, "");
|
|
sub(/[ \t]+$/, "");
|
|
print
|
|
}')"
|
|
if [ -z "${ssid}" ]; then
|
|
ssid="hidden"
|
|
else
|
|
ssid="${ssid//\"/\\\"}"
|
|
ssid="\"${ssid}\""
|
|
fi
|
|
|
|
# format bssid to uppercase and without colons
|
|
#
|
|
bssid="$(printf "%s" "${bssid}" | "${trm_awkcmd}" '{print toupper($0)}')"
|
|
|
|
# convert signal strength to quality percentage (assuming -100dBm = 0% and -50dBm = 100%)
|
|
#
|
|
quality="$((2 * (signal + 100)))"
|
|
[ "${quality}" -gt "100" ] && quality="100"
|
|
[ "${quality}" -lt "0" ] && quality="0"
|
|
|
|
# extract encryption information and convert to human-readable format (wpa versions, ciphers, authentication)
|
|
#
|
|
json_select encryption 2>/dev/null
|
|
json_get_values wpa_arr wpa 2>/dev/null
|
|
json_get_values cipher_arr ciphers 2>/dev/null
|
|
json_get_values auth_arr authentication 2>/dev/null
|
|
json_select .. 2>/dev/null
|
|
wpa_versions="$(printf "%s" "${wpa_arr:-"-"}" | "${trm_awkcmd}" '
|
|
{
|
|
gsub(/[\[\],]/, "");
|
|
for (i=1; i<=NF; i++) {
|
|
if ($i == 1) out = out "WPA1+";
|
|
if ($i == 2) out = out "WPA2+";
|
|
if ($i == 3) out = out "WPA3+";
|
|
}
|
|
sub(/\+$/, "", out);
|
|
print (out == "" ? "-" : out);
|
|
}
|
|
')"
|
|
cipher="$(printf "%s" "${cipher_arr:-"-"}" | "${trm_awkcmd}" '
|
|
{
|
|
gsub(/[\[\]"]/, "");
|
|
gsub(/,/, " ");
|
|
gsub(/[ \t]+/, " ");
|
|
$0 = toupper($0);
|
|
gsub(/ /, "+");
|
|
print ($0=="" ? "-" : $0)
|
|
}
|
|
')"
|
|
auth="$(printf "%s" "${auth_arr:-"-"}" | "${trm_awkcmd}" '
|
|
{
|
|
gsub(/[\[\]"]/, "");
|
|
gsub(/,/, " ");
|
|
gsub(/[ \t]+/, " ");
|
|
$0 = toupper($0);
|
|
gsub(/ /, "+");
|
|
print ($0=="" ? "-" : $0)
|
|
}
|
|
')"
|
|
|
|
# print results in desired format (full or default), filling missing values with placeholders
|
|
#
|
|
case "${mode}" in
|
|
full)
|
|
printf "%s %s %s %s %s %s %s\n" \
|
|
"${quality:-"0"}" "${channel:-"0"}" "${bssid:-"-"}" "${wpa_versions:-"-"}" "${cipher:-"-"}" "${auth:-"-"}" "${ssid}"
|
|
;;
|
|
*)
|
|
printf "%s %s %s %s %s\n" \
|
|
"${quality:-"0"}" "${wpa_versions:-"-"}" "-" "${bssid:-"-"}" "${ssid}"
|
|
;;
|
|
esac
|
|
json_select .. 2>/dev/null
|
|
done
|
|
}
|
|
|
|
# main function for connection handling
|
|
#
|
|
f_main() {
|
|
local radio cnt retrycnt scan_list scan_essid scan_bssid scan_rsn scan_wpa scan_quality scan_open station_id retry_display
|
|
local section sta sta_essid sta_bssid sta_radio sta_mac open_sta open_essid config_radio config_essid config_bssid
|
|
|
|
# initial check
|
|
#
|
|
f_check "initial" "false"
|
|
if [ "${trm_proactive}" = "0" ]; then
|
|
if [ "${trm_connection%%/*}" = "net ok" ]; then
|
|
f_vpn "enable_keep"
|
|
else
|
|
f_vpn "disable"
|
|
fi
|
|
fi
|
|
f_log "debug" "f_main-1 ::: status: ${trm_ifstatus}, connection: ${trm_connection%%/*}, proactive: ${trm_proactive}"
|
|
|
|
# proactive connection handling
|
|
#
|
|
if [ "${trm_ifstatus}" != "true" ] || [ "${trm_proactive}" = "1" ]; then
|
|
config_load wireless
|
|
config_foreach f_setif wifi-iface "${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-2 ::: config_radio: ${config_radio}, config_essid: \"${config_essid}\", config_bssid: ${config_bssid:-"-"}"
|
|
else
|
|
[ -n "$(uci -q changes "wireless")" ] && uci_commit "wireless"
|
|
f_check "dev" "false"
|
|
fi
|
|
f_log "debug" "f_main-3 ::: radio_list: ${trm_radiolist:-"-"}, sta_list: ${trm_stalist:-"-"}"
|
|
|
|
# radio loop
|
|
#
|
|
for radio in ${trm_radiolist}; do
|
|
case " ${trm_stalist} " in
|
|
*"-${radio} "*) ;;
|
|
*)
|
|
if [ "${trm_autoadd}" = "0" ]; then
|
|
continue
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
# station loop
|
|
#
|
|
scan_list=""
|
|
for sta in ${trm_stalist:-"${radio}"}; do
|
|
if [ "${sta}" != "${radio}" ]; then
|
|
section="${sta%%-*}"
|
|
sta_radio="$(uci_get "wireless" "${section}" "device")"
|
|
sta_essid="$(uci_get "wireless" "${section}" "ssid")"
|
|
sta_bssid="$(uci_get "wireless" "${section}" "bssid")"
|
|
sta_mac="$(f_mac "get" "${section}")"
|
|
if [ -z "${sta_radio}" ] || [ -z "${sta_essid}" ]; then
|
|
f_log "info" "invalid wireless section '${section}'"
|
|
continue
|
|
fi
|
|
f_getcfg "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
if [ -n "${trm_connection}" ] && [ "${radio}" = "${config_radio}" ] && [ "${sta_radio}" = "${config_radio}" ] &&
|
|
[ "${sta_essid}" = "${config_essid}" ] && [ "${sta_bssid}" = "${config_bssid}" ]; then
|
|
f_vpn "enable_keep"
|
|
f_log "debug" "f_main-4 ::: config_radio: ${config_radio}, config_essid: ${config_essid}, config_bssid: ${config_bssid:-"-"}"
|
|
return 0
|
|
fi
|
|
f_log "debug" "f_main-5 ::: sta_radio: ${sta_radio}, sta_essid: \"${sta_essid}\", sta_bssid: ${sta_bssid:-"-"}"
|
|
fi
|
|
if [ -z "${scan_list}" ]; then
|
|
scan_list="$(f_scan "${radio}" | "${trm_sortcmd}" -rn)"
|
|
fi
|
|
if [ -z "${scan_list}" ]; then
|
|
f_log "info" "no scan results on '${radio}'"
|
|
continue 2
|
|
fi
|
|
|
|
# scan loop
|
|
#
|
|
while read -r scan_quality scan_rsn scan_wpa scan_bssid scan_essid; do
|
|
if [ "${scan_rsn}" = "-" ] && [ "${scan_wpa}" = "-" ]; then
|
|
scan_open="+"
|
|
else
|
|
scan_open="-"
|
|
fi
|
|
if [ -n "${scan_quality}" ] && [ -n "${scan_open}" ] && [ -n "${scan_bssid}" ] && [ -n "${scan_essid}" ]; then
|
|
f_log "debug" "f_main-6 ::: radio(sta/scan): ${sta_radio}/${radio}, essid(sta/scan): \"${sta_essid}\"/${scan_essid}, bssid(sta/scan): ${sta_bssid}/${scan_bssid}, quality(min/scan): ${trm_minquality}/${scan_quality}, open: ${scan_open}"
|
|
if [ "${scan_quality}" -lt "${trm_minquality}" ]; then
|
|
continue 2
|
|
elif [ "${scan_quality}" -ge "${trm_minquality}" ]; then
|
|
if [ "${trm_autoadd}" = "1" ] && [ "${scan_open}" = "+" ] && [ "${scan_essid}" != "hidden" ]; then
|
|
if [ "${trm_eviltwin}" = "1" ] && [ "$((0x${scan_bssid%%:*} & 2))" != "0" ]; then
|
|
f_log "info" "skipped autoadd of LAA candidate (evil-twin) '${radio}/${scan_essid}/${scan_bssid}'"
|
|
continue
|
|
fi
|
|
open_essid="${scan_essid%?}"
|
|
open_essid="${open_essid:1}"
|
|
open_sta="$(f_addsta "${radio}" "${open_essid}")"
|
|
if [ -n "${open_sta}" ]; then
|
|
section="${open_sta%%-*}"
|
|
sta_radio="$(uci_get "wireless" "${section}" "device")"
|
|
sta_essid="$(uci_get "wireless" "${section}" "ssid")"
|
|
sta_bssid=""
|
|
sta_mac=""
|
|
fi
|
|
fi
|
|
if [ -n "${sta_bssid}" ] && [ "${radio}" = "${sta_radio}" ] &&
|
|
[ "${scan_bssid}" != "${sta_bssid}" ] && [ "${scan_essid}" = "\"${sta_essid}\"" ]; then
|
|
if [ -n "${trm_uplinkcfg}" ]; then
|
|
uci_set "travelmate" "${trm_uplinkcfg}" "enabled" "0"
|
|
uci_commit "travelmate"
|
|
[ ! -f "${trm_refreshfile}" ] && printf "%s" "cfg_reload" >"${trm_refreshfile}"
|
|
fi
|
|
f_log "info" "bssid mismatch (evil-twin) '${sta_radio}/${sta_essid}/${sta_bssid} => ${scan_bssid}'"
|
|
continue
|
|
fi
|
|
if { { [ "${scan_essid}" = "\"${sta_essid}\"" ] && { [ -z "${sta_bssid}" ] || [ "${scan_bssid}" = "${sta_bssid}" ]; }; } ||
|
|
{ [ "${scan_bssid}" = "${sta_bssid}" ] && [ "${scan_essid}" = "hidden" ]; }; } && [ "${radio}" = "${sta_radio}" ]; then
|
|
if [ "${trm_eviltwin}" = "1" ] && [ -z "${sta_bssid}" ] && [ "${scan_essid}" != "hidden" ]; then
|
|
if [ "$((0x${scan_bssid%%:*} & 2))" != "0" ]; then
|
|
f_log "info" "skipped LAA candidate (evil-twin) '${sta_radio}/${sta_essid}/${sta_bssid:-"-"} => ${scan_bssid}'"
|
|
continue
|
|
fi
|
|
fi
|
|
if [ -n "${config_radio}" ]; then
|
|
f_vpn "disable"
|
|
uci_set "wireless" "${trm_activesta}" "disabled" "1"
|
|
[ -n "$(uci -q changes "wireless")" ] && uci_commit "wireless"
|
|
f_check "rev" "false"
|
|
f_log "info" "uplink connection terminated '${config_radio}/${config_essid}/${config_bssid:-"-"}'"
|
|
unset config_radio config_essid config_bssid
|
|
fi
|
|
|
|
# retry loop
|
|
#
|
|
retrycnt="1"
|
|
f_getcfg "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
[ "${trm_maxretry}" = "0" ] && retry_display="-" || retry_display="${trm_maxretry}"
|
|
while [ "${trm_maxretry}" = "0" ] || [ "${retrycnt}" -le "${trm_maxretry}" ]; do
|
|
sta_mac="$(f_mac "set" "${section}")"
|
|
uci_set "wireless" "${section}" "disabled" "0"
|
|
f_check "sta" "false" "${sta_radio}" "${sta_essid}" "${sta_bssid}"
|
|
if [ "${trm_ifstatus}" = "true" ]; then
|
|
rm -f "${trm_mailfile}"
|
|
[ -n "$(uci -q changes "wireless")" ] && uci_commit "wireless"
|
|
f_log "info" "connected to uplink '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' with mac '${sta_mac:-"-"}' (${retrycnt}/${retry_display})"
|
|
f_vpn "enable"
|
|
return 0
|
|
else
|
|
uci -q revert "wireless"
|
|
f_check "rev" "false"
|
|
if [ "${retrycnt}" -eq "${trm_maxretry}" ]; then
|
|
if [ -n "${trm_uplinkcfg}" ]; then
|
|
uci_set "travelmate" "${trm_uplinkcfg}" "enabled" "0"
|
|
uci_commit "travelmate"
|
|
[ ! -f "${trm_refreshfile}" ] && printf "%s" "cfg_reload" >"${trm_refreshfile}"
|
|
fi
|
|
f_log "info" "uplink has been disabled '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${retrycnt}/${retry_display})"
|
|
continue 2
|
|
else
|
|
f_genstatus
|
|
f_log "info" "can't connect to uplink '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${retrycnt}/${retry_display})"
|
|
fi
|
|
fi
|
|
retrycnt="$((retrycnt + 1))"
|
|
sleep "$((trm_maxwait / 6))"
|
|
done
|
|
fi
|
|
fi
|
|
fi
|
|
done <<-EOV
|
|
${scan_list}
|
|
EOV
|
|
done
|
|
done
|
|
fi
|
|
}
|
|
|
|
# reference required system utilities
|
|
#
|
|
trm_catcmd="$(f_cmd cat)"
|
|
trm_awkcmd="$(f_cmd gawk awk)"
|
|
trm_sortcmd="$(f_cmd sort)"
|
|
trm_pgrepcmd="$(f_cmd pgrep)"
|
|
trm_killcmd="$(f_cmd kill)"
|
|
trm_jsoncmd="$(f_cmd jsonfilter)"
|
|
trm_ubuscmd="$(f_cmd ubus)"
|
|
trm_logcmd="$(f_cmd logger)"
|
|
trm_wificmd="$(f_cmd wifi)"
|
|
trm_fetchcmd="$(f_cmd curl)"
|
|
trm_ifstatuscmd="$(f_cmd ifstatus)"
|
|
trm_ipcalccmd="$(f_cmd ipcalc.sh)"
|
|
trm_lookupcmd="$(f_cmd nslookup)"
|
|
trm_mailcmd="$(f_cmd msmtp optional)"
|
|
|
|
# source required system libraries
|
|
#
|
|
if [ -r "/lib/functions.sh" ] && [ -r "/lib/functions/network.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]; then
|
|
. "/lib/functions.sh"
|
|
. "/lib/functions/network.sh"
|
|
. "/usr/share/libubox/jshn.sh"
|
|
else
|
|
f_log "err" "system libraries not found"
|
|
fi
|
|
|
|
# initial system check
|
|
#
|
|
[ -S "/var/run/ubus/ubus.sock" ] && f_system
|
|
|
|
# entry point
|
|
#
|
|
if [ -n "${trm_action}" ] && [ "${trm_action}" != "stop" ]; then
|
|
[ ! -d "/etc/travelmate" ] && f_log "err" "no travelmate config directory"
|
|
[ ! -r "/etc/config/travelmate" ] && f_log "err" "no travelmate config"
|
|
[ "$(uci_get travelmate global trm_enabled)" = "0" ] && f_log "err" "travelmate is disabled"
|
|
fi
|