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738 lines
24 KiB
738 lines
24 KiB
#!/bin/sh
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# travelmate, a wlan connection manager for travel router
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# written by 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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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# (s)hellcheck exceptions
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# shellcheck disable=1091 disable=2039 disable=2143 disable=2181 disable=2188
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# set initial defaults
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#
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LC_ALL=C
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PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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trm_ver="1.5.3"
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trm_enabled=0
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trm_debug=0
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trm_iface="trm_wwan"
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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_captiveurl="http://captive.apple.com"
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trm_scanbuffer=1024
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trm_minquality=35
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trm_maxretry=5
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trm_maxwait=30
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trm_timeout=60
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trm_listexpiry=0
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trm_radio=""
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trm_connection=""
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trm_rtfile="/tmp/trm_runtime.json"
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trm_wifi="$(command -v wifi)"
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trm_wificmd="reload"
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trm_fetch="$(command -v uclient-fetch)"
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trm_iwinfo="$(command -v iwinfo)"
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trm_wpa="$(command -v wpa_supplicant)"
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trm_logger="$(command -v logger)"
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trm_action="${1:-"start"}"
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trm_pidfile="/var/run/travelmate.pid"
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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
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# (re-)initialize global list variables
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#
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unset trm_devlist trm_stalist trm_radiolist trm_active_sta
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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 -e '@.model' -e '@.release.description' | \
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awk 'BEGIN{ORS=", "}{print $0}' | awk '{print substr($0,1,length($0)-2)}')"
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# load config and check 'enabled' option
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#
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config_cb()
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{
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local name="${1}" type="${2}"
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if [ "${name}" = "travelmate" ] && [ "${type}" = "global" ]
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then
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option_cb()
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{
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local option="${1}" value="${2}"
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eval "${option}=\"${value}\""
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}
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else
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option_cb()
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{
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return 0
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}
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fi
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}
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config_load travelmate
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if [ "${trm_enabled}" -ne 1 ]
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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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> "${trm_pidfile}"
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exit 0
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fi
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# get wpa_supplicant capabilities
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#
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wpa_checks="eap sae owe"
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for check in ${wpa_checks}
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do
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if [ -x "${trm_wpa}" ]
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then
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eval "trm_${check}check=\"$("${trm_wpa}" -v${check} >/dev/null 2>&1; printf "%u" "${?}")\""
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else
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eval "trm_${check}check=\"1\""
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fi
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done
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# get wifi reconf capabilities
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#
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if [ -n "$(grep -F "reconf" "${trm_wifi}" 2>/dev/null)" ]
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then
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trm_wificmd="reconf"
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fi
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# enable 'disabled' 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 "$(uci -q changes "wireless")" ]
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then
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uci_commit "wireless"
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"${trm_wifi}" "${trm_wificmd}"
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sleep $((trm_maxwait/6))
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fi
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# validate input ranges
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#
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if [ "${trm_minquality}" -lt 20 ] || [ "${trm_minquality}" -gt 80 ]
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then
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trm_minquality=35
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fi
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if [ "${trm_listexpiry}" -lt 0 ] || [ "${trm_listexpiry}" -gt 300 ]
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then
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trm_listexpiry=0
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fi
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if [ "${trm_maxretry}" -lt 1 ] || [ "${trm_maxretry}" -gt 10 ]
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then
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trm_maxretry=5
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fi
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if [ "${trm_maxwait}" -lt 20 ] || [ "${trm_maxwait}" -gt 40 ] || [ "${trm_maxwait}" -ge "${trm_timeout}" ]
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then
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trm_maxwait=30
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fi
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if [ "${trm_timeout}" -lt 30 ] || [ "${trm_timeout}" -gt 300 ] || [ "${trm_timeout}" -le "${trm_maxwait}" ]
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then
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trm_timeout=60
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fi
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# load json runtime file
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#
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json_load_file "${trm_rtfile}" >/dev/null 2>&1
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json_select data >/dev/null 2>&1
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if [ "${?}" -ne 0 ]
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then
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> "${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 ::: trm_eapcheck: ${trm_eapcheck:-"-"}, trm_saecheck: ${trm_saecheck:-"-"}, trm_owecheck: ${trm_owecheck:-"-"}, trm_wificmd: ${trm_wificmd}"
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}
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# trim leading and trailing whitespace characters
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#
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f_trim()
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{
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local IFS trim="${1}"
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trim="${trim#"${trim%%[![:space:]]*}"}"
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trim="${trim%"${trim##*[![:space:]]}"}"
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printf '%s' "${trim}"
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}
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# prepare the 'wifi-device' sections
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#
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f_prepdev()
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{
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local IFS disabled config="${1}"
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disabled="$(uci_get "wireless" "${config}" "disabled")"
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if [ "${disabled}" = "1" ]
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then
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uci_set wireless "${config}" disabled 0
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fi
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f_log "debug" "f_prepdev ::: config: ${config}, disabled: ${disabled:-"-"}"
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}
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# prepare the 'wifi-iface' sections
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#
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f_prepif()
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{
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local IFS mode network radio encryption eaptype disabled config="${1}" proactive="${2}"
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mode="$(uci_get "wireless" "${config}" "mode")"
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network="$(uci_get "wireless" "${config}" "network")"
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radio="$(uci_get "wireless" "${config}" "device")"
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encryption="$(uci_get "wireless" "${config}" "encryption")"
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eaptype="$(uci_get "wireless" "${config}" "eap_type")"
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disabled="$(uci_get "wireless" "${config}" "disabled")"
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if [ -n "${config}" ] && [ -n "${radio}" ] && [ -n "${mode}" ] && [ -n "${network}" ]
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then
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if [ -z "${trm_radio}" ] && [ -z "$(printf "%s" "${trm_radiolist}" | grep -Fo "${radio}")" ]
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then
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trm_radiolist="$(f_trim "${trm_radiolist} ${radio}")"
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elif [ -n "${trm_radio}" ] && [ -z "${trm_radiolist}" ]
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then
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trm_radiolist="$(f_trim "$(printf "%s" "${trm_radio}" | \
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awk '{while(match(tolower($0),/radio[0-9]/)){ORS=" ";print substr(tolower($0),RSTART,RLENGTH);$0=substr($0,RSTART+RLENGTH)}}')")"
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fi
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if [ "${mode}" = "sta" ] && [ "${network}" = "${trm_iface}" ]
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then
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if { [ -z "${disabled}" ] || [ "${disabled}" = "0" ]; } && { [ "${proactive}" -eq 0 ] || [ "${trm_ifstatus}" != "true" ]; }
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then
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uci_set wireless "${config}" disabled 1
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elif [ "${disabled}" = "0" ] && [ "${trm_ifstatus}" = "true" ] && [ "${proactive}" -eq 1 ]
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then
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if [ -z "${trm_active_sta}" ]
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then
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trm_active_sta="${config}"
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else
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uci_set wireless "${config}" disabled 1
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fi
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fi
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if [ -z "${eaptype}" ] || { [ -n "${eaptype}" ] && [ "${trm_eapcheck}" -eq 0 ]; }
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then
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if { [ "${encryption%-*}" != "sae" ] && [ "${encryption%-*}" != "wpa3" ] && [ "${encryption}" != "owe" ]; } || \
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{ { [ "${encryption%-*}" = "sae" ] || [ "${encryption%-*}" = "wpa3" ]; } && [ "${trm_saecheck}" -eq 0 ]; } || \
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{ [ "${encryption}" = "owe" ] && [ "${trm_owecheck}" -eq 0 ]; }
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then
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trm_stalist="$(f_trim "${trm_stalist} ${config}-${radio}")"
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fi
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fi
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fi
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fi
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f_log "debug" "f_prepif ::: config: ${config}, mode: ${mode}, network: ${network}, radio: ${radio}, trm_radio: ${trm_radio:-"-"}, trm_active_sta: ${trm_active_sta:-"-"}, proactive: ${proactive}, disabled: ${disabled}"
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}
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# check net status
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#
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f_net()
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{
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local IFS result
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result="$(${trm_fetch} --timeout=$((trm_maxwait/6)) "${trm_captiveurl}" -O /dev/null 2>&1 | \
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awk '/^Failed to redirect|^Redirected/{printf "%s" "net cp \047"$NF"\047";exit}/^Download completed/{printf "%s" "net ok";exit}/^Failed|Connection error/{printf "%s" "net nok";exit}')"
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printf "%s" "${result}"
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f_log "debug" "f_net ::: fetch: ${trm_fetch}, timeout: $((trm_maxwait/6)), url: ${trm_captiveurl}, result: ${result}"
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}
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# check interface status
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#
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f_check()
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{
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local IFS ifname radio dev_status config sta_essid sta_bssid result uci_essid uci_bssid login_command login_command_args wait_time=1 mode="${1}" status="${2:-"false"}" cp_domain="${3:-"false"}"
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if [ "${mode}" != "initial" ] && [ "${mode}" != "dev" ] && [ "${status}" = "false" ]
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then
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"${trm_wifi}" "${trm_wificmd}"
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sleep $((trm_maxwait/6))
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fi
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while [ "${wait_time}" -le "${trm_maxwait}" ]
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do
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dev_status="$(ubus -S call network.wireless status 2>/dev/null)"
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if [ -n "${dev_status}" ]
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then
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if [ "${mode}" = "dev" ]
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then
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if [ "${trm_ifstatus}" != "${status}" ]
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then
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trm_ifstatus="${status}"
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f_jsnup
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fi
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for radio in ${trm_radiolist}
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do
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result="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e "@.${radio}.up")"
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if [ "${result}" = "true" ] && [ -z "$(printf "%s" "${trm_devlist}" | grep -Fo "${radio}")" ]
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then
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trm_devlist="$(f_trim "${trm_devlist} ${radio}")"
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fi
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done
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if [ "${trm_devlist}" = "${trm_radiolist}" ] || [ "${wait_time}" -eq "${trm_maxwait}" ]
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then
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ifname="${trm_devlist}"
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break
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else
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unset trm_devlist
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fi
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elif [ "${mode}" = "rev" ]
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then
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break
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else
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ifname="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].ifname')"
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if [ -n "${ifname}" ]
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then
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trm_ifquality="$(${trm_iwinfo} "${ifname}" info 2>/dev/null | awk -F "[ ]" '/Link Quality:/{split($NF,var0,"/");printf "%i\n",(var0[1]*100/var0[2])}')"
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if [ "${mode}" = "initial" ] && [ "${trm_captive}" -eq 1 ]
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then
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result="$(f_net)"
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if [ "${cp_domain}" = "true" ]
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then
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cp_domain="$(printf "%s" "${result}" | awk -F "[\\'| ]" '/^net cp/{printf "%s" $4}')"
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uci_essid="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].config.ssid')"
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uci_essid="${uci_essid//[^[:alnum:]_]/_}"
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uci_bssid="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].config.bssid')"
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uci_bssid="${uci_bssid//[^[:alnum:]_]/_}"
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fi
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fi
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if [ "${trm_ifquality}" -ge "${trm_minquality}" ] && [ "${result}" != "net nok" ]
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then
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trm_ifstatus="$(ubus -S call network.interface dump 2>/dev/null | jsonfilter -l1 -e "@.interface[@.device=\"${ifname}\"].up")"
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if [ "${trm_ifstatus}" = "true" ]
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then
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if [ "${mode}" = "sta" ] && [ "${trm_captive}" -eq 1 ]
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then
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while true
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do
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result="$(f_net)"
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cp_domain="$(printf "%s" "${result}" | awk -F "[\\'| ]" '/^net cp/{printf "%s" $4}')"
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uci_essid="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].config.ssid')"
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uci_essid="${uci_essid//[^[:alnum:]_]/_}"
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uci_bssid="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].config.bssid')"
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uci_bssid="${uci_bssid//[^[:alnum:]_]/_}"
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if [ "${trm_netcheck}" -eq 1 ] && [ "${result}" = "net nok" ]
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then
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trm_ifstatus="${status}"
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f_jsnup
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break 2
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fi
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if [ -z "${cp_domain}" ] || [ -n "$(uci_get "dhcp" "@dnsmasq[0]" "rebind_domain" | grep -Fo "${cp_domain}")" ]
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then
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break
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fi
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uci -q add_list dhcp.@dnsmasq[0].rebind_domain="${cp_domain}"
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f_log "info" "captive portal domain '${cp_domain}' added to to dhcp rebind whitelist"
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if [ -z "$(uci_get "travelmate" "${trm_radio}_${uci_essid}_${uci_bssid}")" ]
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then
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uci_add travelmate "login" "${trm_radio}_${uci_essid}_${uci_bssid}"
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uci_set travelmate "${trm_radio}_${uci_essid}_${uci_bssid}" "command" "none"
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f_log "info" "captive portal login section '${trm_radio}_${uci_essid}_${uci_bssid}' added to travelmate config section"
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fi
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done
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if [ -n "$(uci -q changes "dhcp")" ]
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then
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uci_commit "dhcp"
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/etc/init.d/dnsmasq reload
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fi
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if [ -n "$(uci -q changes "travelmate")" ]
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then
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uci_commit "travelmate"
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fi
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fi
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if [ -n "${cp_domain}" ] && [ "${cp_domain}" != "false" ] && [ -n "${uci_essid}" ] && [ "${trm_captive}" -eq 1 ]
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then
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trm_connection="${result:-"-"}/${trm_ifquality}"
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f_jsnup
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login_command="$(uci_get "travelmate" "${trm_radio}_${uci_essid}_${uci_bssid}" "command")"
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if [ -x "${login_command}" ]
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then
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login_command_args="$(uci_get "travelmate" "${trm_radio}_${uci_essid}_${uci_bssid}" "command_args")"
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"${login_command}" ${login_command_args} >/dev/null 2>&1
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rc=${?}
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f_log "info" "captive portal login '${login_command:0:40} ${login_command_args:0:20}' for '${cp_domain}' has been executed with rc '${rc}'"
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if [ "${rc}" -eq 0 ]
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then
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result="$(f_net)"
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fi
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fi
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fi
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trm_connection="${result:-"-"}/${trm_ifquality}"
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f_jsnup
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break
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fi
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elif [ -n "${trm_connection}" ]
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then
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sta_essid="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].*.ssid')"
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sta_bssid="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].*.bssid')"
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if [ "${trm_ifquality}" -lt "${trm_minquality}" ]
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then
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unset trm_connection
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trm_ifstatus="${status}"
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f_log "info" "uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' is out of range (${trm_ifquality}/${trm_minquality})"
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elif [ "${trm_netcheck}" -eq 1 ] && [ "${result}" = "net nok" ]
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then
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unset trm_connection
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trm_ifstatus="${status}"
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f_log "info" "uplink '${sta_essid:-"-"}/${sta_bssid:-"-"}' has no internet (${result})"
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fi
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f_jsnup
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break
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elif [ "${mode}" = "initial" ]
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then
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f_jsnup
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break
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fi
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elif [ -n "${trm_connection}" ]
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then
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unset trm_connection
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trm_ifstatus="${status}"
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f_jsnup
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break
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elif [ "${mode}" = "initial" ]
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then
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f_jsnup
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break
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fi
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fi
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fi
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wait_time=$((wait_time+1))
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sleep 1
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done
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f_log "debug" "f_check ::: mode: ${mode}, name: ${ifname:-"-"}, status: ${trm_ifstatus}, connection: ${trm_connection:-"-"}, wait: ${wait_time}, max_wait: ${trm_maxwait}, min_quality: ${trm_minquality}, captive: ${trm_captive}, netcheck: ${trm_netcheck}"
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}
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# update runtime information
|
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#
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f_jsnup()
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{
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local IFS config d1 d2 d3 last_date last_station sta_iface sta_radio sta_essid sta_bssid last_status dev_status wpa_status status="${trm_ifstatus}" faulty_list faulty_station="${1}"
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dev_status="$(ubus -S call network.wireless status 2>/dev/null)"
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if [ -n "${dev_status}" ]
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then
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config="$(printf "%s" "${dev_status}" | jsonfilter -l1 -e '@.*.interfaces[@.config.mode="sta"].section')"
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if [ -n "${config}" ]
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then
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sta_iface="$(uci_get "wireless" "${config}" "network")"
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sta_radio="$(uci_get "wireless" "${config}" "device")"
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sta_essid="$(uci_get "wireless" "${config}" "ssid")"
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sta_bssid="$(uci_get "wireless" "${config}" "bssid")"
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fi
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fi
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json_get_var last_date "last_rundate"
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json_get_var last_station "station_id"
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if [ "${status}" = "true" ]
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then
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status="connected (${trm_connection:-"-"})"
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json_get_var last_status "travelmate_status"
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if [ "${last_status}" = "running / not connected" ] || [ "${last_station}" != "${sta_radio:-"-"}/${sta_essid:-"-"}/${sta_bssid:-"-"}" ]
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|
then
|
|
last_date="$(date "+%Y.%m.%d-%H:%M:%S")"
|
|
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="$(date "+%Y.%m.%d-%H:%M:%S")"
|
|
fi
|
|
|
|
json_get_var faulty_list "faulty_stations"
|
|
if [ -n "${faulty_list}" ] && [ "${trm_listexpiry}" -gt 0 ]
|
|
then
|
|
d1="$(date -d "${last_date}" "+%s")"
|
|
d2="$(date "+%s")"
|
|
d3=$(((d2 - d1)/60))
|
|
if [ "${d3}" -ge "${trm_listexpiry}" ]
|
|
then
|
|
faulty_list=""
|
|
fi
|
|
fi
|
|
|
|
if [ -n "${faulty_station}" ]
|
|
then
|
|
if [ -z "$(printf "%s" "${faulty_list}" | grep -Fo "${faulty_station}")" ]
|
|
then
|
|
faulty_list="$(f_trim "${faulty_list} ${faulty_station}")"
|
|
last_date="$(date "+%Y.%m.%d-%H:%M:%S")"
|
|
fi
|
|
fi
|
|
|
|
if [ "${trm_eapcheck}" -eq 0 ]
|
|
then
|
|
wpa_status="EAP"
|
|
else
|
|
wpa_status="-"
|
|
fi
|
|
if [ "${trm_saecheck}" -eq 0 ]
|
|
then
|
|
wpa_status="${wpa_status}/SAE"
|
|
else
|
|
wpa_status="${wpa_status}/-"
|
|
fi
|
|
if [ "${trm_owecheck}" -eq 0 ]
|
|
then
|
|
wpa_status="${wpa_status}/OWE"
|
|
else
|
|
wpa_status="${wpa_status}/-"
|
|
fi
|
|
json_add_string "travelmate_status" "${status}"
|
|
json_add_string "travelmate_version" "${trm_ver}"
|
|
json_add_string "station_id" "${sta_radio:-"-"}/${sta_essid:-"-"}/${sta_bssid:-"-"}"
|
|
json_add_string "station_interface" "${sta_iface:-"-"}"
|
|
json_add_string "faulty_stations" "${faulty_list}"
|
|
json_add_string "wpa_capabilities" "${wpa_status:-"-"}"
|
|
json_add_string "last_rundate" "${last_date}"
|
|
json_add_string "system" "${trm_sysver}"
|
|
json_dump > "${trm_rtfile}"
|
|
f_log "debug" "f_jsnup ::: config: ${config:-"-"}, status: ${status:-"-"}, sta_iface: ${sta_iface:-"-"}, sta_radio: ${sta_radio:-"-"}, sta_essid: ${sta_essid:-"-"}, sta_bssid: ${sta_bssid:-"-"}, faulty_list: ${faulty_list:-"-"}, list_expiry: ${trm_listexpiry}"
|
|
}
|
|
|
|
# write to syslog
|
|
#
|
|
f_log()
|
|
{
|
|
local IFS class="${1}" log_msg="${2}"
|
|
|
|
if [ -n "${log_msg}" ] && { [ "${class}" != "debug" ] || [ "${trm_debug}" -eq 1 ]; }
|
|
then
|
|
if [ -x "${trm_logger}" ]
|
|
then
|
|
"${trm_logger}" -p "${class}" -t "travelmate-${trm_ver}[${$}]" "${log_msg}"
|
|
else
|
|
printf "%s %s %s\\n" "${class}" "travelmate-${trm_ver}[${$}]" "${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 dev config spec scan_list scan_essid scan_bssid scan_open scan_quality uci_essid cfg_essid faulty_list
|
|
local station_id sta sta_essid sta_bssid sta_radio sta_iface active_essid active_bssid active_radio
|
|
|
|
f_check "initial" "false" "true"
|
|
f_log "debug" "f_main ::: status: ${trm_ifstatus}, proactive: ${trm_proactive}"
|
|
if [ "${trm_ifstatus}" != "true" ] || [ "${trm_proactive}" -eq 1 ]
|
|
then
|
|
config_load wireless
|
|
config_foreach f_prepif wifi-iface ${trm_proactive}
|
|
if [ "${trm_ifstatus}" = "true" ] && [ -n "${trm_active_sta}" ] && [ "${trm_proactive}" -eq 1 ]
|
|
then
|
|
json_get_var station_id "station_id"
|
|
active_radio="${station_id%%/*}"
|
|
active_essid="${station_id%/*}"
|
|
active_essid="${active_essid#*/}"
|
|
active_bssid="${station_id##*/}"
|
|
f_check "dev" "true"
|
|
f_log "debug" "f_main ::: active_radio: ${active_radio}, active_essid: \"${active_essid}\", active_bssid: ${active_bssid:-"-"}"
|
|
else
|
|
uci_commit "wireless"
|
|
f_check "dev"
|
|
fi
|
|
json_get_var faulty_list "faulty_stations"
|
|
f_log "debug" "f_main ::: iwinfo: ${trm_iwinfo:-"-"}, dev_list: ${trm_devlist:-"-"}, sta_list: ${trm_stalist:0:${trm_scanbuffer}}, faulty_list: ${faulty_list:-"-"}"
|
|
# radio loop
|
|
#
|
|
for dev in ${trm_devlist}
|
|
do
|
|
if [ -z "$(printf "%s" "${trm_stalist}" | grep -o "\\-${dev}")" ]
|
|
then
|
|
f_log "debug" "f_main ::: no station on '${dev}' - continue"
|
|
continue
|
|
fi
|
|
# station loop
|
|
#
|
|
for sta in ${trm_stalist}
|
|
do
|
|
config="${sta%%-*}"
|
|
sta_radio="${sta##*-}"
|
|
sta_essid="$(uci_get "wireless" "${config}" "ssid")"
|
|
sta_bssid="$(uci_get "wireless" "${config}" "bssid")"
|
|
sta_iface="$(uci_get "wireless" "${config}" "network")"
|
|
json_get_var faulty_list "faulty_stations"
|
|
if [ -n "$(printf "%s" "${faulty_list}" | grep -Fo "${sta_radio}/${sta_essid}/${sta_bssid}")" ]
|
|
then
|
|
f_log "debug" "f_main ::: faulty station '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' - continue"
|
|
continue
|
|
fi
|
|
if [ "${dev}" = "${active_radio}" ] && [ "${sta_essid}" = "${active_essid}" ] && [ "${sta_bssid:-"-"}" = "${active_bssid}" ]
|
|
then
|
|
f_log "debug" "f_main ::: active station prioritized '${active_radio}/${active_essid}/${active_bssid:-"-"}' - break"
|
|
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_list="$("${trm_iwinfo}" "${dev}" scan 2>/dev/null | \
|
|
awk 'BEGIN{FS="[[:space:]]"}/Address:/{var1=$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 ::: scan_radio: ${dev}, scan_buffer: ${trm_scanbuffer}, scan_list: ${scan_list}"
|
|
if [ -z "${scan_list}" ]
|
|
then
|
|
f_log "debug" "f_main ::: no scan results on '${dev}' - continue"
|
|
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}" ] && [ "${scan_essid}" = "unknown" ]; } } && [ "${dev}" = "${sta_radio}" ]
|
|
then
|
|
f_log "debug" "f_main ::: scan_quality: ${scan_quality}, scan_essid: ${scan_essid}, scan_bssid: ${scan_bssid:-"-"}, scan_open: ${scan_open}"
|
|
if [ -n "${active_radio}" ]
|
|
then
|
|
uci_set "wireless" "${trm_active_sta}" "disabled" "1"
|
|
uci_commit "wireless"
|
|
f_log "debug" "f_main ::: active uplink connection '${active_radio}/${active_essid}/${active_bssid:-"-"}' terminated"
|
|
unset trm_connection active_radio active_essid active_bssid
|
|
fi
|
|
# retry loop
|
|
#
|
|
cnt=1
|
|
while [ "${cnt}" -le "${trm_maxretry}" ]
|
|
do
|
|
uci_set "wireless" "${config}" "disabled" "0"
|
|
trm_radio="${sta_radio}"
|
|
f_check "sta"
|
|
if [ "${trm_ifstatus}" = "true" ]
|
|
then
|
|
unset IFS scan_list
|
|
uci_commit "wireless"
|
|
f_log "info" "connected to uplink '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${cnt}/${trm_maxretry}, ${trm_sysver})"
|
|
return 0
|
|
else
|
|
uci -q revert "wireless"
|
|
f_check "rev"
|
|
if [ "${cnt}" -eq "${trm_maxretry}" ]
|
|
then
|
|
faulty_station="${sta_radio}/${sta_essid}/${sta_bssid:-"-"}"
|
|
f_jsnup "${faulty_station}"
|
|
f_log "info" "uplink disabled '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${cnt}/${trm_maxretry}, ${trm_sysver})"
|
|
break 2
|
|
else
|
|
f_jsnup
|
|
f_log "info" "can't connect to uplink '${sta_radio}/${sta_essid}/${sta_bssid:-"-"}' (${cnt}/${trm_maxretry}, ${trm_sysver})"
|
|
fi
|
|
fi
|
|
cnt=$((cnt+1))
|
|
sleep $((trm_maxwait/6))
|
|
done
|
|
elif [ "${trm_autoadd}" -eq 1 ] && [ "${scan_open}" = "+" ] && [ "${scan_essid}" != "unknown" ]
|
|
then
|
|
cfg_essid="${scan_essid#*\"}"
|
|
cfg_essid="${cfg_essid%\"*}"
|
|
uci_essid="${cfg_essid//[^[:alnum:]_]/_}"
|
|
if [ -z "$(uci_get "wireless" "trm_${uci_essid}")" ]
|
|
then
|
|
uci_add "wireless" "wifi-iface" "trm_${uci_essid}"
|
|
uci_set "wireless" "trm_${uci_essid}" "mode" "sta"
|
|
uci_set "wireless" "trm_${uci_essid}" "network" "${trm_iface}"
|
|
uci_set "wireless" "trm_${uci_essid}" "device" "${sta_radio}"
|
|
uci_set "wireless" "trm_${uci_essid}" "ssid" "${cfg_essid}"
|
|
uci_set "wireless" "trm_${uci_essid}" "encryption" "none"
|
|
uci_set "wireless" "trm_${uci_essid}" "disabled" "1"
|
|
uci_commit "wireless"
|
|
f_log "info" "open uplink '${sta_radio}/${cfg_essid}' added to wireless config"
|
|
fi
|
|
fi
|
|
unset scan_quality scan_bssid scan_essid scan_open
|
|
continue
|
|
else
|
|
unset scan_quality scan_bssid scan_essid scan_open
|
|
continue
|
|
fi
|
|
fi
|
|
done
|
|
unset IFS scan_quality scan_bssid scan_essid scan_open
|
|
done
|
|
unset scan_list
|
|
done
|
|
fi
|
|
}
|
|
|
|
# source required system libraries
|
|
#
|
|
if [ -r "/lib/functions.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]
|
|
then
|
|
. "/lib/functions.sh"
|
|
. "/usr/share/libubox/jshn.sh"
|
|
else
|
|
f_log "err" "system libraries not found"
|
|
fi
|
|
|
|
# control travelmate actions
|
|
#
|
|
f_env
|
|
while true
|
|
do
|
|
if [ -z "${trm_action}" ]
|
|
then
|
|
rc=0
|
|
while true
|
|
do
|
|
if [ "${rc}" -eq 0 ]
|
|
then
|
|
f_check "initial"
|
|
fi
|
|
sleep ${trm_timeout} 0
|
|
rc=${?}
|
|
if [ "${rc}" -ne 0 ]
|
|
then
|
|
f_check "initial"
|
|
fi
|
|
if [ "${rc}" -eq 0 ] || { [ "${rc}" -ne 0 ] && [ "${trm_ifstatus}" = "false" ]; }
|
|
then
|
|
break
|
|
fi
|
|
done
|
|
elif [ "${trm_action}" = "stop" ]
|
|
then
|
|
f_log "info" "travelmate instance stopped ::: action: ${trm_action}, pid: $(cat ${trm_pidfile} 2>/dev/null)"
|
|
> "${trm_rtfile}"
|
|
> "${trm_pidfile}"
|
|
exit 0
|
|
else
|
|
f_log "info" "travelmate instance started ::: action: ${trm_action}, pid: ${$}"
|
|
unset trm_action
|
|
fi
|
|
json_cleanup
|
|
f_env
|
|
f_main
|
|
done
|