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https://github.com/thetechprepper/emcomm-tools-os-community.git
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Gaston Gonzalez
316 lines
8.4 KiB
Bash
Executable File
316 lines
8.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Author : Gaston Gonzalez
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# : Cliff Jones
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# Date : 1 January 2025
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# Updated : 17 March 2025
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# Purpose : Utility for accessing the Bluetooth TNC on the Vero VGC VR-N76.
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source /opt/emcomm-tools/bin/et-common
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CLEAN_UP=1
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cleanup() {
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# Note: We need to reconnect to the Bluetooth device on every mode change.
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# As such, we need kill all the rfcomm and kiss process on exit.
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if [[ ${CLEAN_UP} -eq 1 ]]; then
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sudo /opt/emcomm-tools/bin/et-kill-bt
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fi
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}
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# Kill all Bluetooth TNC services on exit
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trap cleanup EXIT
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ACTIVE_RADIO="${ET_HOME}/conf/radios.d/vgc-vrn76.bt.json"
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DEVICE_NAME="VR-N76"
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BT_DEVICE="/dev/rfcomm0"
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AX25_PORT="wl2k"
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AX25_CONF_FILE="/etc/ax25/axports"
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function usage() {
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echo "Usage: $(basename $0) <command>"
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echo " c, connect - Connect to radio via Bluetooth"
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echo " p, pair - Pair radio (one-time operation)"
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echo " u, unpair - Unpair radio"
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CLEAN_UP=0
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}
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if [[ $# -ne 1 ]]; then
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usage
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exit 1
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fi
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if [[ -e ${BT_DEVICE} ]]; then
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echo -e "${YELLOW}Your ${BLUE}${DEVICE_NAME}${YELLOW} may have a connection that needs to be cleaned up."
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echo -e "Press ${WHITE}[ENTER]${YELLOW} to clean-up.${NC}"
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read -p ""
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cleanup
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fi
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stop_all_services() {
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et-kill-all
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}
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exit_if_no_active_radio () {
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if [ ! -e ${ACTIVE_RADIO} ]; then
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echo "${ACTIVE_RADIO} file not found"
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exit 1
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fi
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}
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get_mac_or_exit () {
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MAC=$(cat ${ACTIVE_RADIO} | jq -e -r .bluetooth.mac)
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if [ $? -ne 0 ]; then
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echo "No MAC address found in ${ACTIVE_RADIO}."
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exit 1
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fi
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}
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update_ax25_conf() {
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[ -z "$ET_USER_CONFIG" ] && ET_USER_CONFIG="${HOME}/.config/emcomm-tools/user.json"
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CALLSIGN=$(cat ${ET_USER_CONFIG} | jq -r .callsign)
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if [ "${CALLSIGN}" = "N0CALL" ]; then
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et-log "No callsign set. Run et-user first."
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exit 1
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fi
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GREP_OUT=$(grep ${AX25_PORT} ${AX25_CONF_FILE})
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if [ $? -eq 0 ]; then
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# Delete all existing AX.25 port entries. Note: we can't use sed here
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# since we do not have permission to create a temporary file with
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# inline replacement. ed modifies the file directly.
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printf "g/^${AX25_PORT}/d\nw\nq\n" | ed ${AX25_CONF_FILE} > /dev/null 2>&1
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fi
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echo "${AX25_PORT} ${CALLSIGN} 1200 255 2 1200 Packet" >> ${AX25_CONF_FILE}
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}
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do_kiss_attach() {
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echo -e "${BLUE}Connecting KISS interface using ${BT_DEVICE} and AX.25 port: ${AX25_PORT}${NC}"
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KISS_OUT=$(sudo kissattach ${BT_DEVICE} ${AX25_PORT})
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if [[ $? -ne 0 ]]; then
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echo -e "${RED}Failed to attach KISS port.${NC}"
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exit 1
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fi
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KISS_OUT=$(sudo kissparms -c 1 -p ${AX25_PORT})
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}
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exit_on_service_failure() {
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local systemd_unit_name="$1"
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systemctl is-active --user --quiet "${systemd_unit_name}"
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if [ $? -ne 0 ]; then
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et-log "Can't start mode. ${systemd_unit_name} failed to start."
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exit 1
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fi
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}
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TIMEOUT=15 # Total time to wait in seconds
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INTERVAL=2 # Interval between checks in seconds
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start_and_wait_for_service() {
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local systemd_unit_name="$1"
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local elapsed=0
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et-log "Starting ${systemd_unit_name}..."
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systemctl --user start ${systemd_unit_name}
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et-log "Waiting for ${systemd_unit_name} to become active..."
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while ! systemctl is-active --user --quiet "${systemd_unit_name}"; do
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sleep "$INTERVAL"
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elapsed=$((elapsed + INTERVAL))
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if [ "$elapsed" -ge "$TIMEOUT" ]; then
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et-log "Timeout reached. ${systemd_unit_name} failed to start."
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exit 1
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fi
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et-log "Waiting for ${systemd_unit_name} to become active..."
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done
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# Some applications even when started still need a bit of extra time to be available.
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# Add a short think time of 2 seconds. The ARDOP modem requies extra time.
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sleep 2
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# Do one more check to ensure that we are running, otherwise exit.
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exit_on_service_failure ${systemd_unit_name}
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}
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exit_if_no_active_radio
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case $1 in
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p|pair)
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MAC=$(cat ${ACTIVE_RADIO} | jq -e -r .bluetooth.mac)
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if [ $? -eq 0 ]; then
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PAIR_STATUS=$(bluetoothctl info "${MAC}" | grep "Paired:" | awk '{print $2}')
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if [ "${PAIR_STATUS}" == "yes" ]; then
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echo "Device with MAC ${MAC} is already paired."
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exit 1
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fi
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fi
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echo -e "${YELLOW}"
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echo -e "1. Turn off your ${DEVICE_NAME}"
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echo -e "2. Turn on your ${DEVICE_NAME}"
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echo -e "3. Goto Menu > Pairing and press OK"
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echo -e "4. Press ${WHITE}[ENTER]${YELLOW} when done.${NC}"
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read -p ""
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echo "Searching for ${DEVICE_NAME}..."
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HCI_OUT=$(hcitool scan | grep "${DEVICE_NAME}")
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if [ $? -ne 0 ]; then
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echo "Can't find ${DEVICE_NAME}. Make sure that the radio is on and in pairing mode."
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exit 1
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fi
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MAC=$(echo ${HCI_OUT} | awk '{print $1}')
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# Update configuration file detected MAC address
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sed -i "s|.*mac.*| \"mac\": \"${MAC}\"|g" ${ACTIVE_RADIO}
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# Generate an expect script to automatically pair our device.
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PAIR_SCRIPT="${HOME}/pair"
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cat <<EOF > ${PAIR_SCRIPT}
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#!/usr/bin/expect -f
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set device "${MAC}"
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set timeout 60
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spawn bluetoothctl
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expect "Agent registered"
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send "power on\r"
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expect "Changing power on succeeded"
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send "scan on\r"
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expect "${MAC}"
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send "pair ${MAC}\r"
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expect "Pairing successful"
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send "trust ${MAC}\r"
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expect "trust succeeded"
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send "exit\r"
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expect eof
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EOF
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sleep 1 && chmod 755 ${PAIR_SCRIPT} && expect ${PAIR_SCRIPT}
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;;
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u|unpair)
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MAC=$(cat ${ACTIVE_RADIO} | jq -e -r .bluetooth.mac)
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if [ $? -ne 0 ]; then
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echo "No MAC found in radio configuration file."
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exit 1
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fi
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PAIR_STATUS=$(bluetoothctl info "${MAC}")
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if [ $? -ne 0 ]; then
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echo "No device with ${MAC} found. Can't unpair."
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exit 1
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fi
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echo "Unpairing ${DEVICE_NAME}..."
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bluetoothctl untrust ${MAC}
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bluetoothctl remove ${MAC}
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echo -e "${YELLOW}"
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echo -e "You may also want to remove this device from your ${DEVICE_NAME}"
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echo -e "under Menu > General Settings > Connection > Paired Devices."
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echo -e "${NC}"
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;;
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c|connect)
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get_mac_or_exit
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echo -e "${YELLOW}"
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echo -e "1. Turn off your ${DEVICE_NAME}"
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echo -e "2. Turn on your ${DEVICE_NAME}"
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echo -e "3. Goto Menu > General Settings > KISS TNC > Enable KISS TNC"
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echo -e "4. Press ${WHITE}[ENTER]${YELLOW} when done.${NC}"
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read -p ""
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is_paired=$(bluetoothctl info ${MAC} | grep "Paired" | awk '{print $2}')
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if [ "${is_paired}" != "yes" ]; then
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echo -e "${RED}${DEVICE_NAME} is not paired. Run: '${WHITE}$(basename $0) pair${RED}'"
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echo -e "${NC}"
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exit 1
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fi
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echo -e "Found ${DEVICE_NAME} with MAC address: ${MAC}"
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update_ax25_conf
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sudo rfcomm connect /dev/rfcomm0 ${MAC} 1>/dev/null 2>&1 &
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sleep 10 && reset
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if [[ ! -e "${BT_DEVICE}" ]]; then
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echo -e "${RED}Failed to connect via Bluetooth${NC}"
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echo -e "${YELLOW}"
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echo -e "1. Try turning off and back on your radio."
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echo -e "2. Check your radio and ensure that ${BLUE}$(hostname)${YELLOW} is listed under:"
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echo -e " Menu > General Settings> Connection > Paired Devices: $(hostname)."
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echo -e ""
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echo -e " If it is not listed, re-run: ${WHITE}$(basename $0) pair${NC}\n"
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exit 1
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fi
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stop_all_services
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echo -e "\nSelect a packet application to start:"
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options=("axcall" "QtTermTCP" "Winlink" "YAAC" "Exit")
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select opt in "${options[@]}"
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do
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case $opt in
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"axcall")
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do_kiss_attach
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echo -e "${YELLOW}"
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echo -e "SAMPLE COMMANDS DESCRIPTION "
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echo -e "----------------------------- --------------------------------"
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echo -e "axcall wl2k <STATION> Connect directly to a node "
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echo -e "axcall wl2k <STATION> <DIGI> Connect to node via a digipeater"
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echo -e "sudo axlisten -a -tttt -c Monitor inbound and outbound traffic"
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echo -e "${NC}"
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# We can't have the rfcomm and kiss processes killed.
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CLEAN_UP=0
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break
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;;
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"QtTermTCP")
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et-qttermtcp start 1>/dev/null 2>&1
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break
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;;
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"Winlink")
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do_kiss_attach
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start_and_wait_for_service et-service-winlink-native-packet
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min http://localhost:8080 1>/dev/null 2>&1
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break
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;;
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"YAAC")
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et-yaac start
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break
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;;
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"Exit")
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break
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;;
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*)
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echo "Invalid option, please select a number from the list."
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;;
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esac
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done
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;;
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*)
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et-log "Invalid command."
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usage
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exit 1
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;;
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esac
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