feat(gateway): add support for full IP forwarding of KNX TP telegrams and enhance tunnel frame handling

Signed-off-by: Tony <tonylu@tony-cloud.com>
2026-05-19 03:14:03 +08:00
parent b447da5bfc
commit 3af2995b40
7 changed files with 68 additions and 10 deletions
@@ -852,6 +852,17 @@ config GATEWAY_KNX_TP_UART_9BIT_MODE
        mode commonly described as 19200 baud 9-bit UART. Disable only for
        hardware wired for 8N1 host UART mode.

+    config GATEWAY_KNX_TP_FULL_IP_FORWARD
+        bool "Mirror all physical KNX TP telegrams to KNXnet/IP"
+        depends on GATEWAY_KNX_BRIDGE_SUPPORTED && GATEWAY_KNX_TP_UART_PORT >= 0
+        default n
+        help
+            Mirrors physical KNX TP telegrams received from the TP-UART line back
+            out through KNXnet/IP tunnelling and multicast even when the gateway
+            runs the single-interface ETS device runtime. Enable this when ETS must
+            monitor or download other TP devices through the gateway's IP endpoint.
+            Leave it disabled to preserve the narrower default forwarding behavior.
+
 config GATEWAY_BRIDGE_KNX_TASK_STACK_SIZE
    int "KNX/IP bridge task stack bytes"
    depends on GATEWAY_KNX_BRIDGE_SUPPORTED
@@ -699,6 +699,7 @@ CONFIG_GATEWAY_KNX_TP_RX_PIN=-1
 CONFIG_GATEWAY_KNX_TP_BAUDRATE=19200
 CONFIG_GATEWAY_KNX_TP_STARTUP_TIMEOUT_MS=2000
 CONFIG_GATEWAY_KNX_TP_UART_9BIT_MODE=y
+CONFIG_GATEWAY_KNX_TP_FULL_IP_FORWARD=y
 CONFIG_GATEWAY_BRIDGE_KNX_TASK_STACK_SIZE=12288
 CONFIG_GATEWAY_BRIDGE_KNX_TASK_PRIORITY=5
 CONFIG_GATEWAY_CLOUD_BRIDGE_SUPPORTED=y
@@ -697,7 +697,9 @@ CONFIG_GATEWAY_KNX_TP_UART_PORT=0
 CONFIG_GATEWAY_KNX_TP_TX_PIN=-1
 CONFIG_GATEWAY_KNX_TP_RX_PIN=-1
 CONFIG_GATEWAY_KNX_TP_BAUDRATE=19200
+CONFIG_GATEWAY_KNX_TP_STARTUP_TIMEOUT_MS=2000
 CONFIG_GATEWAY_KNX_TP_UART_9BIT_MODE=y
+# CONFIG_GATEWAY_KNX_TP_FULL_IP_FORWARD is not set
 CONFIG_GATEWAY_BRIDGE_KNX_TASK_STACK_SIZE=12288
 CONFIG_GATEWAY_BRIDGE_KNX_TASK_PRIORITY=5
 CONFIG_GATEWAY_CLOUD_BRIDGE_SUPPORTED=y