Line data    Source code

       1              : /*
       2              :  *    Copyright (c) 2020 Project CHIP Authors
       3              :  *    All rights reserved.
       4              :  *
       5              :  *    Licensed under the Apache License, Version 2.0 (the "License");
       6              :  *    you may not use this file except in compliance with the License.
       7              :  *    You may obtain a copy of the License at
       8              :  *
       9              :  *        http://www.apache.org/licenses/LICENSE-2.0
      10              :  *
      11              :  *    Unless required by applicable law or agreed to in writing, software
      12              :  *    distributed under the License is distributed on an "AS IS" BASIS,
      13              :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14              :  *    See the License for the specific language governing permissions and
      15              :  *    limitations under the License.
      16              :  */
      17              : 
      18              : /**
      19              :  *    @file
      20              :  *      This file implements the utility class for the CHIP Message Layer.
      21              :  */
      22              : 
      23              : #include <errno.h>
      24              : 
      25              : #include <messaging/ErrorCategory.h>
      26              : 
      27              : #include <inet/InetError.h>
      28              : #include <system/SystemConfig.h>
      29              : #include <system/SystemError.h>
      30              : 
      31              : namespace chip {
      32              : namespace Messaging {
      33              : 
      34            0 : bool IsIgnoredMulticastSendError(CHIP_ERROR err)
      35              : {
      36            0 :     return err == CHIP_NO_ERROR ||
      37              : #if CHIP_SYSTEM_CONFIG_USE_LWIP
      38              :         err == System::MapErrorLwIP(ERR_RTE)
      39              : #else
      40            0 :         err == CHIP_ERROR_POSIX(ENETUNREACH) || err == CHIP_ERROR_POSIX(EADDRNOTAVAIL)
      41              : #endif
      42              :         ;
      43              : }
      44              : 
      45            0 : CHIP_ERROR FilterUDPSendError(CHIP_ERROR err, bool isMulticast)
      46              : {
      47              :     // Don't report certain types of routing errors when they occur while sending multicast packets.
      48              :     // These may indicate that the underlying interface doesn't support multicast (e.g. the loopback
      49              :     // interface on linux) or that the selected interface doesn't have an appropriate source address.
      50            0 :     if (isMulticast)
      51              :     {
      52              : #if CHIP_SYSTEM_CONFIG_USE_LWIP
      53              :         if (err == System::MapErrorLwIP(ERR_RTE))
      54              :         {
      55              :             err = CHIP_NO_ERROR;
      56              :         }
      57              : #endif // CHIP_SYSTEM_CONFIG_USE_LWIP
      58              : 
      59              : #if CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK
      60            0 :         if (err == CHIP_ERROR_POSIX(ENETUNREACH) || err == CHIP_ERROR_POSIX(EADDRNOTAVAIL))
      61              :         {
      62            0 :             err = CHIP_NO_ERROR;
      63              :         }
      64              : #endif
      65              :     }
      66              : 
      67            0 :     return err;
      68              : }
      69              : 
      70              : /**
      71              :  *  Checks if error, while sending, is critical enough to report to the application.
      72              :  *
      73              :  *  @param[in]    err      The #CHIP_ERROR being checked for criticality.
      74              :  *
      75              :  *  @return    true if the error is NOT critical; false otherwise.
      76              :  *
      77              :  */
      78         1606 : bool IsSendErrorNonCritical(CHIP_ERROR err)
      79              : {
      80         4818 :     return (err == CHIP_ERROR_NOT_IMPLEMENTED || err == CHIP_ERROR_OUTBOUND_MESSAGE_TOO_BIG || err == CHIP_ERROR_MESSAGE_TOO_LONG ||
      81         4818 :             err == CHIP_ERROR_NO_MEMORY || CHIP_CONFIG_IsPlatformErrorNonCritical(err));
      82              : }
      83              : 
      84              : } // namespace Messaging
      85              : } // namespace chip