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script/gen-esphome-avahi.sh

@@ -1,25 +1,55 @@
 #!/usr/bin/env bash
 set -euo pipefail
+
 PORT=6053
 NAME="%h (Linux Voice Assistant)"
+SERVICE=/etc/avahi/services/esphome-lva.service
 
-mapfile -t IFACES < <(ip -o link show up | awk -F': ' '{print $2}' | grep -v '^lo$')
+# Wait up to ~40s for any global IPv4 (cosmetic: to include ipv4_* TXT)
+deadline=$((SECONDS+40))
+while [ $SECONDS -lt $deadline ]; do
+  ip -o -4 addr show up scope global | grep -q . && break || true
+  sleep 1
+done
+
+# Collect all UP, non-loopback ifaces
+mapfile -t IFACES < <(ip -o link show up | awk -F': ' '{print $2}' | grep -v '^lo$' | sort -u)
 
 TXT="    <txt-record>platform=linux</txt-record>
 "
 LIST=""
 for i in "${IFACES[@]}"; do
+  [ -e "/sys/class/net/$i/address" ] || continue
   mac=$(cat "/sys/class/net/$i/address")
-  if [ -d "/sys/class/net/$i/wireless" ] || [[ $i == wl* ]]; then net=wifi; else net=ethernet; fi
+  mac_nc=${mac//:/}   # no colons (ESPHome style)
-  TXT+="    <txt-record>mac_${i}=${mac}</txt-record>
+  if [ -d "/sys/class/net/$i/wireless" ] || [[ "$i" == wl* ]]; then net=wifi; else net=ethernet; fi
-"
+
   TXT+="    <txt-record>net_${i}=${net}</txt-record>
 "
+  TXT+="    <txt-record>mac_${i}=${mac_nc}</txt-record>
+"
+
+  # IPv4 (global)
+  while read -r a; do
+    [ -n "$a" ] || continue
+    a=${a%%/*}
+    TXT+="    <txt-record>ipv4_${i}=${a}</txt-record>
+"
+  done < <(ip -o -4 addr show dev "$i" scope global | awk '{print $4}' || true)
+
+  # IPv6 (global, not link-local)
+  while read -r a6; do
+    [ -n "$a6" ] || continue
+    a6=${a6%%/*}
+    TXT+="    <txt-record>ipv6_${i}=${a6}</txt-record>
+"
+  done < <(ip -o -6 addr show dev "$i" scope global | awk '{print $4}' || true)
+
   LIST+="${i},"
 done
 LIST=${LIST%,}
 
-cat >/etc/avahi/services/esphome-lva.service <<XML
+cat >"$SERVICE" <<XML
 <?xml version="1.0" standalone='no'?><!--*-nxml-*-->
 <!DOCTYPE service-group SYSTEM "avahi-service.dtd">
 <service-group>
@@ -31,3 +61,6 @@ cat >/etc/avahi/services/esphome-lva.service <<XML
 ${TXT}  </service>
 </service-group>
 XML
+
+# Avahi will (re)publish on all active ifaces automatically
+systemctl restart avahi-daemon || true