[ncp] add NCP based implementation (empty) of platform InfraIf APIs (#10638)

This implementation will be used on all platforms for NCP nodes
(simulation, any vendor platforms). However the simulation platform
already has a different implementation. To avoid conflicts, the commit
adds a control flag in simulation config so that we can choose whether
to enable the simulation implementation.

examples/platforms/simulation/CMakeLists.txt

@@ -45,6 +45,13 @@ if(OT_SIMULATION_MAX_NETWORK_SIZE)
     target_compile_definitions(ot-simulation-config INTERFACE "OPENTHREAD_SIMULATION_MAX_NETWORK_SIZE=${OT_SIMULATION_MAX_NETWORK_SIZE}")
 endif()
 
+option(OT_SIMULATION_INFRA_IF "enable simulation infra if" ON)
+if (OT_SIMULATION_INFRA_IF)
+    target_compile_definitions(ot-simulation-config INTERFACE "OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF=1")
+else()
+    target_compile_definitions(ot-simulation-config INTERFACE "OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF=0")
+endif()
+
 if(NOT OT_PLATFORM_CONFIG)
     set(OT_PLATFORM_CONFIG "openthread-core-simulation-config.h" PARENT_SCOPE)
 endif()

examples/platforms/simulation/infra_if.c

@@ -36,7 +36,7 @@
 #include "simul_utils.h"
 #include "utils/code_utils.h"
 
-#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE && !OPENTHREAD_RADIO
+#if OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
 
 #define DEBUG_LOG 0
 
@@ -335,4 +335,4 @@ OT_TOOL_WEAK void otPlatInfraIfRecvIcmp6Nd(otInstance         *aInstance,
     exit(1);
 }
 
-#endif // OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE && !OPENTHREAD_RADIO
+#endif // OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE

examples/platforms/simulation/platform-config.h

@@ -116,3 +116,13 @@
 #ifndef OPENTHREAD_SIMULATION_MDNS_SOCKET_IMPLEMENT_POSIX
 #define OPENTHREAD_SIMULATION_MDNS_SOCKET_IMPLEMENT_POSIX 0
 #endif
+
+/**
+ * @def OPENTHREAD_SIMULATION_IMPLMENT_INFRA_IF
+ *
+ * Define as 1 for the simulation platform to provide implementation of `otPlatInfra` APIs.
+ *
+ */
+#ifndef OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF
+#define OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF 1
+#endif

examples/platforms/simulation/platform-simulation.h

@@ -305,7 +305,7 @@ void platformTrelProcess(otInstance *aInstance, const fd_set *aReadFdSet, const
 
 #endif // OPENTHREAD_CONFIG_RADIO_LINK_TREL_ENABLE
 
-#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#if OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
 
 /**
  * Initializes the platform infra-if module.
@@ -339,7 +339,7 @@ void platformInfraIfUpdateFdSet(fd_set *aReadFdSet, fd_set *aWriteFdSet, int *aM
  */
 void platformInfraIfProcess(otInstance *aInstance, const fd_set *aReadFdSet, const fd_set *aWriteFdSet);
 
-#endif // OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#endif // OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
 
 #if OPENTHREAD_CONFIG_MULTICAST_DNS_ENABLE && OPENTHREAD_SIMULATION_MDNS_SOCKET_IMPLEMENT_POSIX
 

examples/platforms/simulation/system.c

@@ -200,7 +200,7 @@ void otSysInit(int aArgCount, char *aArgVector[])
 #if OPENTHREAD_CONFIG_RADIO_LINK_TREL_ENABLE
     platformTrelInit(speedUpFactor);
 #endif
-#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#if OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
     platformInfraIfInit();
 #endif
     platformRandomInit();
@@ -214,7 +214,7 @@ void otSysDeinit(void)
 #if OPENTHREAD_CONFIG_RADIO_LINK_TREL_ENABLE
     platformTrelDeinit();
 #endif
-#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#if OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
     platformInfraIfDeinit();
 #endif
     platformLoggingDeinit();
@@ -239,7 +239,7 @@ void otSysProcessDrivers(otInstance *aInstance)
 #if OPENTHREAD_CONFIG_RADIO_LINK_TREL_ENABLE
     platformTrelUpdateFdSet(&read_fds, &write_fds, &timeout, &max_fd);
 #endif
-#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#if OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
     platformInfraIfUpdateFdSet(&read_fds, &write_fds, &max_fd);
 #endif
 #if OPENTHREAD_CONFIG_MULTICAST_DNS_ENABLE && OPENTHREAD_SIMULATION_MDNS_SOCKET_IMPLEMENT_POSIX
@@ -276,7 +276,7 @@ void otSysProcessDrivers(otInstance *aInstance)
 #if OPENTHREAD_CONFIG_RADIO_LINK_TREL_ENABLE
     platformTrelProcess(aInstance, &read_fds, &write_fds);
 #endif
-#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#if OPENTHREAD_SIMULATION_IMPLEMENT_INFRA_IF && OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
     platformInfraIfProcess(aInstance, &read_fds, &write_fds);
 #endif
 #if OPENTHREAD_CONFIG_MULTICAST_DNS_ENABLE && OPENTHREAD_SIMULATION_MDNS_SOCKET_IMPLEMENT_POSIX