mirror of
https://github.com/FreeRTOS/FreeRTOS-Plus-TCP
synced 2025-10-20 22:10:04 +08:00
6b84c44e07
* MISRA: fix rule 8.13 violations * Fix more 8.3 rules violation * Misra rule 8.13 fixes * Fix Unit Test
94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
/*
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* FreeRTOS+TCP <DEVELOPMENT BRANCH>
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://github.com/FreeRTOS
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* https://www.FreeRTOS.org
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*/
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#ifndef FREERTOS_DNS_PARSER_H
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#define FREERTOS_DNS_PARSER_H
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/* FreeRTOS includes. */
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#include "FreeRTOS.h"
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/* FreeRTOS+TCP includes. */
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#include "FreeRTOS_IP.h"
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#include "FreeRTOS_DNS_Globals.h"
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/* Standard includes. */
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#include <stdint.h>
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#if ( ipconfigUSE_DNS != 0 )
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/** @brief Flag DNS parsing errors in situations where an IPv4 address is the return
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* type. */
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#if ( ipconfigUSE_DNS_CACHE == 1 ) || ( ipconfigDNS_USE_CALLBACKS == 1 )
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size_t DNS_ReadNameField( const uint8_t * pucByte,
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size_t uxRemainingBytes,
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char * pcName,
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size_t uxDestLen );
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#endif /* ipconfigUSE_DNS_CACHE || ipconfigDNS_USE_CALLBACKS */
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/*
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* Simple routine that jumps over the NAME field of a resource record.
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* It returns the number of bytes read.
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*/
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size_t DNS_SkipNameField( const uint8_t * pucByte,
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size_t uxLength );
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/*
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* Process a response packet from a DNS server.
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* The parameter 'xExpected' indicates whether the identifier in the reply
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* was expected, and thus if the DNS cache may be updated with the reply.
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*/
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uint32_t DNS_ParseDNSReply( uint8_t * pucUDPPayloadBuffer,
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size_t uxBufferLength,
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BaseType_t xExpected );
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/*
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* The NBNS and the LLMNR protocol share this reply function.
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*/
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#if ( ( ipconfigUSE_NBNS == 1 ) || ( ipconfigUSE_LLMNR == 1 ) )
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void prepareReplyDNSMessage( NetworkBufferDescriptor_t * pxNetworkBuffer,
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BaseType_t lNetLength );
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#endif
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#if ( ipconfigUSE_NBNS == 1 )
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void DNS_TreatNBNS( uint8_t * pucPayload,
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size_t uxBufferLength,
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uint32_t ulIPAddress );
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#endif
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uint32_t parseDNSAnswer( const DNSMessage_t * pxDNSMessageHeader,
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uint8_t * pucByte,
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size_t uxSourceBytesRemaining,
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size_t * uxBytesRead
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#if ( ipconfigUSE_DNS_CACHE == 1 ) || ( ipconfigDNS_USE_CALLBACKS == 1 )
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,
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const char * pcName,
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BaseType_t xDoStore
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#endif
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);
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#endif /* if ( ipconfigUSE_DNS != 0 ) */
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#endif /* ifndef FREERTOS_DNS_PARSER_H */
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