[simulation] add empty otPlatInfraIf platform APIs in simul/test (#6852)

This commit adds empty implementations of `otPlatInfraIf` platform
APIs under simulation. It also adds `otPlatInfraIfHasAddress()` in
`test_platform`. This allows the unit tests and simulation platform
builds to succeed when `OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE` is
enabled.

examples/platforms/simulation/CMakeLists.txt

@@ -62,6 +62,7 @@ add_library(openthread-simulation
     diag.c
     entropy.c
     flash.c
+    infra_if.c
     logging.c
     misc.c
     radio.c

examples/platforms/simulation/Makefile.am

@@ -44,6 +44,7 @@ PLATFORM_SOURCES                          = \
     diag.c                                  \
     entropy.c                               \
     flash.c                                 \
+    infra_if.c                              \
     logging.c                               \
     misc.c                                  \
     openthread-core-simulation-config.h     \

examples/platforms/simulation/infra_if.c

@@ -0,0 +1,54 @@
+/*
+ *  Copyright (c) 2021, The OpenThread Authors.
+ *  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions are met:
+ *  1. Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *  3. Neither the name of the copyright holder nor the
+ *     names of its contributors may be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *  POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "platform-simulation.h"
+
+#include <openthread/platform/infra_if.h>
+
+#if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+bool otPlatInfraIfHasAddress(uint32_t aInfraIfIndex, const otIp6Address *aAddress)
+{
+    OT_UNUSED_VARIABLE(aInfraIfIndex);
+    OT_UNUSED_VARIABLE(aAddress);
+
+    return false;
+}
+
+otError otPlatInfraIfSendIcmp6Nd(uint32_t            aInfraIfIndex,
+                                 const otIp6Address *aDestAddress,
+                                 const uint8_t *     aBuffer,
+                                 uint16_t            aBufferLength)
+{
+    OT_UNUSED_VARIABLE(aInfraIfIndex);
+    OT_UNUSED_VARIABLE(aDestAddress);
+    OT_UNUSED_VARIABLE(aBuffer);
+    OT_UNUSED_VARIABLE(aBufferLength);
+
+    return OT_ERROR_FAILED;
+}
+#endif

tests/unit/test_platform.cpp

@@ -712,6 +712,14 @@ otLinkMetrics otPlatRadioGetEnhAckProbingMetrics(otInstance *aInstance, const ot
 #endif
 
 #if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+bool otPlatInfraIfHasAddress(uint32_t aInfraIfIndex, const otIp6Address *aAddress)
+{
+    OT_UNUSED_VARIABLE(aInfraIfIndex);
+    OT_UNUSED_VARIABLE(aAddress);
+
+    return false;
+}
+
 otError otPlatInfraIfSendIcmp6Nd(uint32_t            aInfraIfIndex,
                                  const otIp6Address *aDestAddress,
                                  const uint8_t *     aBuffer,