Support network diagnostic feature. (#652)

* support network diagnostic

* add network diagnostic THCI implementation

src/cli/cli.cpp

@@ -103,6 +103,7 @@ const struct Command Interpreter::sCommands[] =
     { "masterkey", &Interpreter::ProcessMasterKey },
     { "mode", &Interpreter::ProcessMode },
     { "netdataregister", &Interpreter::ProcessNetworkDataRegister },
+    { "networkdiagnostic", &Interpreter::ProcessNetworkDiagnostic },
     { "networkidtimeout", &Interpreter::ProcessNetworkIdTimeout },
     { "networkname", &Interpreter::ProcessNetworkName },
     { "panid", &Interpreter::ProcessPanId },
@@ -2449,5 +2450,38 @@ exit:
     return;
 }
 
+void Interpreter::ProcessNetworkDiagnostic(int argc, char *argv[])
+{
+    ThreadError error = kThreadError_None;
+    struct otIp6Address address;
+    uint8_t index = 2;
+    uint8_t tlvTypes[OT_NUM_NETDIAG_TLV_TYPES];
+    uint8_t count = 0;
+
+    VerifyOrExit(argc > 1 + 1, error = kThreadError_Parse);
+
+    SuccessOrExit(error = otIp6AddressFromString(argv[1], &address));
+
+    while (index < argc && count < sizeof(tlvTypes))
+    {
+        long value;
+        SuccessOrExit(error = ParseLong(argv[index], value));
+        tlvTypes[count++] = static_cast<uint8_t>(value);
+        index++;
+    }
+
+    if (strcmp(argv[0], "get") == 0)
+    {
+        otSendDiagnosticGet(mInstance, &address, tlvTypes, count);
+    }
+    else if (strcmp(argv[0], "reset") == 0)
+    {
+        otSendDiagnosticReset(mInstance, &address, tlvTypes, count);
+    }
+
+exit:
+    AppendResult(error);
+}
+
 }  // namespace Cli
 }  // namespace Thread