Fix compatibility with linux

Makefile

@@ -16,8 +16,8 @@ help:
 	@echo ""
 	@echo "  help                             outputs this helper"
 	@echo "  build                            builds the project using Docker"
-	@echo "  dev                              runs secc, mqtt and redis in dev version, using Docker"
-	@echo "  run                              runs secc, mqtt and redis in prod version, using Docker"
+	@echo "  dev                              runs secc and redis in dev version, using Docker"
+	@echo "  run                              runs secc and redis in prod version, using Docker"
 	@echo "  install-local                    uses poetry to update and install iso15118 locally, including dependencies"
 	@echo "  run-secc                         runs the secc project locally"
 	@echo "  run-evcc                         runs the evcc project locally"

docker-compose-host-mode.yml

@@ -4,34 +4,21 @@ services:
     hostname: secc
     build:
       context: .
-      args:
-        - PYPI_USER=${PYPI_USER}
-        - PYPI_PASS=${PYPI_PASS}
       dockerfile: iso15118/secc/Dockerfile
     depends_on:
-      - mqtt
       - redis
     network_mode: host
 
   evcc:
     hostname: evcc
     build:
       context: .
-      args:
-        - PYPI_USER=${PYPI_USER}
-        - PYPI_PASS=${PYPI_PASS}
       dockerfile: iso15118/evcc/Dockerfile
     depends_on:
-      - mqtt
       - redis
       - secc
     network_mode: host
 
-  mqtt:
-    build: ./mqtt
-    ports:
-     - "9001:9001"
-
   redis:
     image: redis:6.2.6-alpine
     ports:

iso15118/evcc/transport/udp_client.py

@@ -50,6 +50,9 @@ def _create_socket() -> 'socket':
         This method creates an IPv6 socket configured to send multicast datagrams
         """
 
+        # raises an exception if the interface chosen is invalid
+        validate_nic(NETWORK_INTERFACE)
+
         # Initialise the socket for IPv6 datagrams
         # Address family (determines network layer protocol, here IPv6)
         # Socket type (datagram, determines transport layer protocol UDP)
@@ -63,14 +66,11 @@ def _create_socket() -> 'socket':
         ttl = struct.pack("@i", 1)
         sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, ttl)
 
-        # The IP_MULTICAST_IF or IPV6_MULTICAST_IF settings tell the socket to
-        # which interface shall send its multicast packets. It's a separate,
-        # independent, setting from the interface that bounds the socket to
-        # with bind(), since bind() controls which interface(s) the socket
-        # receives multicast packets from.
-
-        validate_nic(NETWORK_INTERFACE)
-
+        # Restrict multicast operation to the given interface
+        # The IP_MULTICAST_IF or IPV6_MULTICAST_IF settings, tell the socket
+        # which interface it shall send its multicast packets. It can be seen
+        # as the dual of bind(), since bind() controls which interface(s) the
+        # socket receives multicast packets from.
         interface_index = socket.if_nametoindex(NETWORK_INTERFACE)
         sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, interface_index)
 

iso15118/shared/network.py

@@ -177,7 +177,7 @@ def get_tcp_port() -> int:
 def get_nic_mac_address(nic: str) -> str:
     """
     This method returns the MAC Addess of a specific NIC or the first one
-    associated with a IPv6 link-local address.
+    associated with an IPv6 link-local address.
     Args:
         nic (str): The Network Interface Card