From 4d07ee8f52fa57199faf24aa60d87f023d0e98e7 Mon Sep 17 00:00:00 2001
From: Gaston Gonzalez <info@thetechprepper.com>
Date: Wed, 1 Jan 2025 16:50:49 -0700
Subject: [PATCH] BTECH UV PRO - Added support for configuring the ax25 ports
 file on each start using the current et-user

---
 overlay/opt/emcomm-tools/bin/et-uv-pro | 40 +++++++++++++++++++++++---
 scripts/install-packet.sh              |  4 +++
 2 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/overlay/opt/emcomm-tools/bin/et-uv-pro b/overlay/opt/emcomm-tools/bin/et-uv-pro
index c46e37f..eeb112a 100755
--- a/overlay/opt/emcomm-tools/bin/et-uv-pro
+++ b/overlay/opt/emcomm-tools/bin/et-uv-pro
@@ -9,10 +9,9 @@
 CONF_FILE="${HOME}/.config/emcomm-tools/btech-uv-pro.json"
 MAC="38:D2:00:00:ED:C8"
 
-# TODO: Write to /etc/ax25/axports
-
 BT_DEVICE="/dev/rfcomm0"
 AX25_PORT="pkt1200"
+AX25_CONF_FILE="/etc/ax25/axports"
 
 RED='\x1B[1;31m'
 BLUE='\x1B[1;34m'
@@ -33,6 +32,29 @@ if [ $# -ne 1 ]; then
   exit 1
 fi
 
+update_ax25_conf() {
+
+    [ -z "$ET_USER_CONFIG" ] && ET_USER_CONFIG="${HOME}/.config/emcomm-tools/user.json"
+
+    CALLSIGN=$(cat ${ET_USER_CONFIG} | jq -r .callsign)
+
+    if [ "${CALLSIGN}" = "N0CALL" ]; then
+      echo -e "${RED}No callsign set. Run et-user first.${NC}"
+      exit 1
+    fi
+
+  GREP_OUT=$(grep ${AX25_PORT} ${AX25_CONF_FILE})
+  if [ $? -eq 0 ]; then
+    # Delete all existing pkt1200 entries. Note: we can't use sed here
+    # since we do not have permission to create a temporary file with
+    # inline replacement. ed modifies the file directly.
+    printf "g/^pkt1200/d\nw\nq\n" | ed ${AX25_CONF_FILE} > /dev/null 2>&1
+
+  fi
+
+  echo -e "${BLUE}Adding AX25 port for ${CALLSIGN}${NC}"
+  echo "pkt1200 ${CALLSIGN} 1200 255	2 1200 Packet" >> ${AX25_CONF_FILE}
+}
 
 stop_all_services() {
 
@@ -55,7 +77,9 @@ stop_all_services() {
 case $1 in
   connect)
     echo -e "${YELLOW}"
-    read -p "Turn on BTech UV Pro, then press [ENTER] when on."
+    echo -e "1. Turn on the BTECH UV PRO"
+    echo -e "2. Menu > General Settings > KISS TNC = checked"
+    read -p "3. Press [ENTER] when done."
 
     is_paired=$(bluetoothctl info ${MAC} | grep "Paired" | awk '{print $2}')
     if [ "${is_paired}" != "yes" ]; then
@@ -68,6 +92,8 @@ case $1 in
     echo -e "${GREEN}Found UV Pro with MAC address: ${MAC}" 
     stop_all_services
 
+    update_ax25_conf 
+
     echo -e "${BLUE}Connecting to radio..." 
     sudo rfcomm connect /dev/rfcomm0 ${MAC} 1>/dev/null 2>&1 &
 
@@ -92,7 +118,13 @@ case $1 in
 
     KISS_OUT=$(sudo kissparms -c 1 -p ${AX25_PORT})
 
-    echo -e "${YELLOW}\nRun: axcall pkt1200 <STATION>${NC}"
+    echo -e "${YELLOW}"
+    echo -e "SAMPLE COMMANDS                  DESCRIPTION                     "
+    echo -e "-------------------------------  --------------------------------"
+    echo -e "axcall pkt1200 <STATION>         Connect directly to a node      "
+    echo -e "axcall pkt1200 <STATION> <DIGI>  Connect to node via a digipeater"
+    echo -e "${NC}"
+
     ;;
   *)
     et-log "Invalid command."
diff --git a/scripts/install-packet.sh b/scripts/install-packet.sh
index 9faa7fe..e6a2269 100755
--- a/scripts/install-packet.sh
+++ b/scripts/install-packet.sh
@@ -14,3 +14,7 @@ apt install \
 et-log "Installing rfcomm sudoers rules..."
 cp -v ../overlay/etc/sudoers.d/* /etc/sudoers.d/
 
+et-log "Updating AX.25 port permissions..."
+chgrp -v -R $ET_GROUP /etc/ax25/axports
+chmod -v 664 /etc/ax25/axports
+