enable full ECUA interaction from the PC host by using source tags and switching matrix

.github/workflows/tests.yml

@@ -0,0 +1,47 @@
+name: Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Pytest (Python ${{ matrix.python-version }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.12",]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: "pip"
+          cache-dependency-path: |
+            scripts/requirements.txt
+            scripts/tests/requirements.txt
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r scripts/requirements.txt
+          pip install -r scripts/tests/requirements.txt
+
+      - name: Build mock testing libraries
+        run: |
+          chmod +x scripts/tests/build_testing_libs.sh
+          ./scripts/tests/build_testing_libs.sh
+
+      - name: Run test suite
+        run: |
+          PYTHONPATH=scripts/tests python -m pytest -v scripts/tests/

firmware/RAMNV1/Core/Inc/ramn_canfd.h

@@ -135,7 +135,14 @@ RAMN_Bool_t 	RAMN_FDCAN_IsTXBufferSpaceAvailable(uint8_t payloadSize);
  */
 RAMN_Result_t 	RAMN_FDCAN_SendMessage(const FDCAN_TxHeaderTypeDef* header, const uint8_t* data);
 
+// Origin identifiers for CAN frames (used in MessageMarker / IsFilterMatchingFrame)
+#define RAMN_CAN_ORIGIN_BUS       0x00U
+#define RAMN_CAN_ORIGIN_HOST      0xA1U
+#define RAMN_CAN_ORIGIN_INTERNAL  0x02U
+
 #if defined(TARGET_ECUA)
+// Injects a host-originated CAN frame into local RX stream buffer so ECU A internal stacks process it.
+RAMN_Result_t 	RAMN_FDCAN_InjectHostRxMessage(const FDCAN_TxHeaderTypeDef* txHeader, const uint8_t* data);
 // Setups the peripheral for communication with ROM FDCAN Bootloader. Cf AN5405.
 void RAMN_FDCAN_SetupForSTBootloader(void);
 #endif

firmware/RAMNV1/Core/Inc/ramn_config.h

@@ -108,9 +108,10 @@
 // If used with HARDENING, make sure you make the "#" slcan command available again.
 //#define START_IN_CLI_MODE
 
-// Define this flag to let ECU A process slcan message that it receives as regular RX messages (and update their value on screen, for example).
-// This is useful to demonstrate the impact of CAN fuzzing on ECU A's screen when using ECU A's slcan interface, even though ECU A did not actually receive the fuzzed CAN message (since it was the transmitter).
-#define PROCESS_SLCAN_BY_DBC
+// Enable PC interaction with ECU A over slcan and gs_usb.
+// Injects host-transmitted frames into ECU A's local RX stream buffer (for UDS, J1939, DBC)
+// and forwards ECU A's internal transmissions to the host PC over USB.
+#define ENABLE_ECUA_HOST_INTERACTION
 
 // Define this flag to enable the USB debugging module.
 // Note that it also needs to be activated by a slcan command, or by setting RAMN_DEBUG_ENABLE in ramn_debug.c to True.

firmware/RAMNV1/Core/Inc/ramn_j1939.h

@@ -89,23 +89,56 @@
 #define J1939_MANUFACTURER_NEBRASKA_TEST    522
 #define J1939_MANUFACTURER_DLG_TEST         251
 
-/* Per-ECU primary source address for J1939 Address Claim */
+#define J1939_ECUA_IDENTITY                 0xEC0A  /* Identity number: EC0A */
+#define J1939_ECUB_IDENTITY                 0xEC0B  /* Identity number: EC0B */
+#define J1939_ECUC_IDENTITY                 0xEC0C  /* Identity number: EC0C */
+#define J1939_ECUD_IDENTITY                 0xEC0D  /* Identity number: EC0D */
+
+/* Per-ECU primary source address for J1939 Address Claim and diagnostic routing */
 #if defined(TARGET_ECUA)
 #define J1939_ECU_SA                J1939_SA_HEADWAY_CTRL       /* 42 */
 #define J1939_ECU_FUNCTION          J1939_FUNCTION_HEADWAY_CTRL /* 32 */
+#define J1939_ECU_IDENTITY          J1939_ECUA_IDENTITY
 #define J1939_ECU_MANUFACTURER      J1939_MANUFACTURER_NEVADA_TEST
+#define J1939_ECU_KWP_SA            J1939_ECU_SA
+#define J1939_ECU_XCP_SA            J1939_ECU_SA
+#define J1939_ECU_KWP_XCP_SA        J1939_ECU_SA
 #elif defined(TARGET_ECUB)
 #define J1939_ECU_SA                J1939_SA_STEERING_CTRL      /* 19 */
-#define J1939_ECU_FUNCTION          J1939_FUNCTION_STEERING_CTRL /* 16 */
+#define J1939_ECU_FUNCTION          J1939_FUNCTION_CHASSIS_CTRL /* 52: Chassis Controller */
+#define J1939_ECU_IDENTITY          J1939_ECUB_IDENTITY
 #define J1939_ECU_MANUFACTURER      J1939_MANUFACTURER_ISOBUS_TEST
+#define J1939_ECU_KWP_SA            J1939_ECU_SA
+#define J1939_ECU_XCP_SA            J1939_ECU_SA
+#define J1939_ECU_KWP_XCP_SA        J1939_ECU_SA
 #elif defined(TARGET_ECUC)
 #define J1939_ECU_SA                J1939_SA_POWERTRAIN_CTRL    /* 90 */
 #define J1939_ECU_FUNCTION          J1939_FUNCTION_ELECTRIC_POWERTRAIN /* 80 */
+#define J1939_ECU_IDENTITY          J1939_ECUC_IDENTITY
 #define J1939_ECU_MANUFACTURER      J1939_MANUFACTURER_NEBRASKA_TEST
+#define J1939_ECU_KWP_SA            J1939_ECU_SA
+#define J1939_ECU_XCP_SA            J1939_ECU_SA
+#define J1939_ECU_KWP_XCP_SA        J1939_ECU_SA
 #elif defined(TARGET_ECUD)
 #define J1939_ECU_SA                J1939_SA_BODY_CTRL          /* 33 */
 #define J1939_ECU_FUNCTION          J1939_FUNCTION_BODY_CTRL    /* 26 */
+#define J1939_ECU_IDENTITY          J1939_ECUD_IDENTITY
+#define J1939_ECU_MANUFACTURER      J1939_MANUFACTURER_DLG_TEST
+#define J1939_ECU_KWP_SA            J1939_ECU_SA
+#define J1939_ECU_XCP_SA            J1939_ECU_SA
+#define J1939_ECU_KWP_XCP_SA        J1939_ECU_SA
+#else
+/* Fallback definitions when no TARGET_ECUx macro is defined.
+ * This branch exists specifically for IDE code assistance / indexers,
+ * static analysis tools, and standalone / mock compilation units.
+ * Defaults safely to the primary ECU D (Body Controller) configuration. */
+#define J1939_ECU_SA                J1939_SA_BODY_CTRL
+#define J1939_ECU_FUNCTION          J1939_FUNCTION_BODY_CTRL
+#define J1939_ECU_IDENTITY          J1939_ECUD_IDENTITY
 #define J1939_ECU_MANUFACTURER      J1939_MANUFACTURER_DLG_TEST
+#define J1939_ECU_KWP_SA            J1939_ECU_SA
+#define J1939_ECU_XCP_SA            J1939_ECU_SA
+#define J1939_ECU_KWP_XCP_SA        J1939_ECU_SA
 #endif
 
 /* Proprietary A Payload Definitions */