| /* |
| * Copyright (c) 2020 Project CHIP Authors |
| * All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * @file |
| * This file implements the utility class for the CHIP Message Layer. |
| */ |
| |
| #include <errno.h> |
| |
| #include <messaging/ErrorCategory.h> |
| |
| #include <inet/InetError.h> |
| #include <system/SystemConfig.h> |
| #include <system/SystemError.h> |
| |
| namespace chip { |
| namespace Messaging { |
| |
| bool IsIgnoredMulticastSendError(CHIP_ERROR err) |
| { |
| return err == CHIP_NO_ERROR || |
| #if CHIP_SYSTEM_CONFIG_USE_LWIP |
| err == System::MapErrorLwIP(ERR_RTE) |
| #else |
| err == CHIP_ERROR_POSIX(ENETUNREACH) || err == CHIP_ERROR_POSIX(EADDRNOTAVAIL) |
| #endif |
| ; |
| } |
| |
| CHIP_ERROR FilterUDPSendError(CHIP_ERROR err, bool isMulticast) |
| { |
| // Don't report certain types of routing errors when they occur while sending multicast packets. |
| // These may indicate that the underlying interface doesn't support multicast (e.g. the loopback |
| // interface on linux) or that the selected interface doesn't have an appropriate source address. |
| if (isMulticast) |
| { |
| #if CHIP_SYSTEM_CONFIG_USE_LWIP |
| if (err == System::MapErrorLwIP(ERR_RTE)) |
| { |
| err = CHIP_NO_ERROR; |
| } |
| #endif // CHIP_SYSTEM_CONFIG_USE_LWIP |
| |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| if (err == CHIP_ERROR_POSIX(ENETUNREACH) || err == CHIP_ERROR_POSIX(EADDRNOTAVAIL)) |
| { |
| err = CHIP_NO_ERROR; |
| } |
| #endif |
| } |
| |
| return err; |
| } |
| |
| /** |
| * Checks if error, while sending, is critical enough to report to the application. |
| * |
| * @param[in] err The #CHIP_ERROR being checked for criticality. |
| * |
| * @return true if the error is NOT critical; false otherwise. |
| * |
| */ |
| bool IsSendErrorNonCritical(CHIP_ERROR err) |
| { |
| return (err == CHIP_ERROR_NOT_IMPLEMENTED || err == CHIP_ERROR_OUTBOUND_MESSAGE_TOO_BIG || err == CHIP_ERROR_MESSAGE_TOO_LONG || |
| err == CHIP_ERROR_NO_MEMORY || CHIP_CONFIG_IsPlatformErrorNonCritical(err)); |
| } |
| |
| } // namespace Messaging |
| } // namespace chip |