diff options
Diffstat (limited to 'source3/libaddns/dnsrequest.c')
| -rw-r--r-- | source3/libaddns/dnsrequest.c | 478 |
1 files changed, 0 insertions, 478 deletions
diff --git a/source3/libaddns/dnsrequest.c b/source3/libaddns/dnsrequest.c deleted file mode 100644 index d92b0737d3d..00000000000 --- a/source3/libaddns/dnsrequest.c +++ /dev/null @@ -1,478 +0,0 @@ -/* - Linux DNS client library implementation - Copyright (C) 2006 Krishna Ganugapati <krishnag@centeris.com> - Copyright (C) 2006 Gerald Carter <jerry@samba.org> - - ** NOTE! The following LGPL license applies to the libaddns - ** library. This does NOT imply that all of Samba is released - ** under the LGPL - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA -*/ - -#include "dns.h" - -/********************************************************************* -*********************************************************************/ - -static int32 DNSStdMarshallQuestionSection( HANDLE hSendBuffer, - DNS_QUESTION_RECORD ** ppDNSQuestionRecords, - int16 wQuestions ) -{ - int32 dwError = 0; - int32 i = 0; - int32 dwRead = 0; - DNS_QUESTION_RECORD *pDNSQuestionRecord = NULL; - int16 wnQueryType = 0; - int16 wnQueryClass = 0; - - for ( i = 0; i < wQuestions; i++ ) { - - pDNSQuestionRecord = *( ppDNSQuestionRecords + i ); - dwError = - DNSMarshallDomainName( hSendBuffer, - pDNSQuestionRecord-> - pDomainName ); - BAIL_ON_ERROR( dwError ); - - wnQueryType = htons( pDNSQuestionRecord->wQueryType ); - dwError = - DNSMarshallBuffer( hSendBuffer, - ( uint8 * ) & wnQueryType, - ( int32 ) sizeof( int16 ), - &dwRead ); - BAIL_ON_ERROR( dwError ); - - wnQueryClass = htons( pDNSQuestionRecord->wQueryClass ); - dwError = - DNSMarshallBuffer( hSendBuffer, - ( uint8 * ) & wnQueryClass, - ( int32 ) sizeof( int16 ), - &dwRead ); - BAIL_ON_ERROR( dwError ); - - pDNSQuestionRecord++; - } - - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -static int32 DNSStdMarshallAnswerSection( HANDLE hSendBuffer, - DNS_RR_RECORD ** ppDNSAnswerRRRecords, - int16 wAnswers ) -{ - int32 dwError = 0; - int32 i = 0; - DNS_RR_RECORD *pDNSAnswerRRRecord = NULL; - - - for ( i = 0; i < wAnswers; i++ ) { - - pDNSAnswerRRRecord = *( ppDNSAnswerRRRecords + i ); - - dwError = - DNSMarshallRRHeader( hSendBuffer, - pDNSAnswerRRRecord ); - BAIL_ON_ERROR( dwError ); - - dwError = DNSMarshallRData( hSendBuffer, pDNSAnswerRRRecord ); - BAIL_ON_ERROR( dwError ); - - pDNSAnswerRRRecord++; - - } - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -static int32 DNSStdMarshallAuthoritySection( HANDLE hSendBuffer, - DNS_RR_RECORD ** ppDNSAuthorityRRRecords, - int16 wAuthoritys ) -{ - int32 dwError = 0; - int32 i = 0; - - DNS_RR_RECORD *pDNSAuthorityRRRecord = NULL; - - for ( i = 0; i < wAuthoritys; i++ ) { - - pDNSAuthorityRRRecord = *( ppDNSAuthorityRRRecords + i ); - - dwError = - DNSMarshallRRHeader( hSendBuffer, - pDNSAuthorityRRRecord ); - - dwError = DNSMarshallRData( hSendBuffer, - pDNSAuthorityRRRecord ); - BAIL_ON_ERROR( dwError ); - - } - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -static int32 DNSStdMarshallAdditionalSection( HANDLE hSendBuffer, - DNS_RR_RECORD ** ppDNSAdditionalsRRRecords, - int16 wAdditionals ) -{ - int32 dwError = 0; - int32 i = 0; - DNS_RR_RECORD *pDNSAdditionalRRRecord = NULL; - - for ( i = 0; i < wAdditionals; i++ ) { - - pDNSAdditionalRRRecord = *( ppDNSAdditionalsRRRecords + i ); - - dwError = - DNSMarshallRRHeader( hSendBuffer, - pDNSAdditionalRRRecord ); - BAIL_ON_ERROR( dwError ); - - dwError = DNSMarshallRData( hSendBuffer, - pDNSAdditionalRRRecord ); - BAIL_ON_ERROR( dwError ); - - } - - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -static int32 DNSBuildRequestMessage( DNS_REQUEST * pDNSRequest, HANDLE * phSendBuffer ) -{ - int32 dwError = 0; - char DNSMessageHeader[12]; - int16 wnIdentification = 0; - int16 wnParameter = 0; - int16 wnQuestions = 0; - int16 wnAnswers = 0; - int16 wnAuthoritys = 0; - int16 wnAdditionals = 0; - int32 dwRead = 0; - HANDLE hSendBuffer = ( HANDLE ) NULL; - - dwError = DNSCreateSendBuffer( &hSendBuffer ); - BAIL_ON_ERROR( dwError ); - - wnIdentification = htons( pDNSRequest->wIdentification ); - memcpy( DNSMessageHeader, ( char * ) &wnIdentification, 2 ); - - wnParameter = htons( pDNSRequest->wParameter ); - memcpy( DNSMessageHeader + 2, ( char * ) &wnParameter, 2 ); - - wnQuestions = htons( pDNSRequest->wQuestions ); - memcpy( DNSMessageHeader + 4, ( char * ) &wnQuestions, 2 ); - - wnAnswers = htons( pDNSRequest->wAnswers ); - memcpy( DNSMessageHeader + 6, ( char * ) &wnAnswers, 2 ); - - wnAuthoritys = htons( pDNSRequest->wAuthoritys ); - memcpy( DNSMessageHeader + 8, ( char * ) &wnAuthoritys, 2 ); - - wnAdditionals = htons( pDNSRequest->wAdditionals ); - memcpy( DNSMessageHeader + 10, ( char * ) &wnAdditionals, 2 ); - - dwError = - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) DNSMessageHeader, - 12, &dwRead ); - BAIL_ON_ERROR( dwError ); - - if ( pDNSRequest->wQuestions ) { - dwError = - DNSStdMarshallQuestionSection( hSendBuffer, - pDNSRequest-> - ppQuestionRRSet, - pDNSRequest-> - wQuestions ); - BAIL_ON_ERROR( dwError ); - } - - if ( pDNSRequest->wAnswers ) { - dwError = - DNSStdMarshallAnswerSection( hSendBuffer, - pDNSRequest-> - ppAnswerRRSet, - pDNSRequest->wAnswers ); - BAIL_ON_ERROR( dwError ); - } - - if ( pDNSRequest->wAuthoritys ) { - dwError = - DNSStdMarshallAuthoritySection( hSendBuffer, - pDNSRequest-> - ppAuthorityRRSet, - pDNSRequest-> - wAuthoritys ); - BAIL_ON_ERROR( dwError ); - } - - if ( pDNSRequest->wAdditionals ) { - dwError = - DNSStdMarshallAdditionalSection( hSendBuffer, - pDNSRequest-> - ppAdditionalRRSet, - pDNSRequest-> - wAdditionals ); - BAIL_ON_ERROR( dwError ); - } -#if 0 - DNSDumpSendBufferContext( hSendBuffer ); -#endif - *phSendBuffer = hSendBuffer; - - return dwError; - - error: - - if ( hSendBuffer ) { - DNSFreeSendBufferContext( hSendBuffer ); - } - - *phSendBuffer = ( HANDLE ) NULL; - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSStdSendStdRequest2( HANDLE hDNSServer, DNS_REQUEST * pDNSRequest ) -{ - int32 dwError = 0; - int32 dwBytesSent = 0; - HANDLE hSendBuffer = ( HANDLE ) NULL; - - dwError = DNSBuildRequestMessage( pDNSRequest, &hSendBuffer ); - BAIL_ON_ERROR( dwError ); - - dwError = - DNSSendBufferContext( hDNSServer, hSendBuffer, &dwBytesSent ); - BAIL_ON_ERROR( dwError ); - - error: - - if ( hSendBuffer ) { - DNSFreeSendBufferContext( hSendBuffer ); - } - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSMarshallDomainName( HANDLE hSendBuffer, DNS_DOMAIN_NAME * pDomainName ) -{ - int32 dwError = 0; - DNS_DOMAIN_LABEL *pTemp = NULL; - int32 dwLen = 0; - int32 dwSent = 0; - char uEndChar = 0; - - pTemp = pDomainName->pLabelList; - while ( pTemp ) { - dwLen = ( int32 ) strlen( pTemp->pszLabel ); - dwError = - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) & dwLen, - sizeof( char ), &dwSent ); - BAIL_ON_ERROR( dwError ); - - dwError = - DNSMarshallBuffer( hSendBuffer, - ( uint8 * ) pTemp->pszLabel, dwLen, - &dwSent ); - BAIL_ON_ERROR( dwError ); - pTemp = pTemp->pNext; - } - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) & uEndChar, - sizeof( char ), &dwSent ); - - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSMarshallRRHeader( HANDLE hSendBuffer, DNS_RR_RECORD * pDNSRecord ) -{ - int32 dwError = 0; - int32 dwRead = 0; - int16 wnType = 0; - int16 wnClass = 0; - int16 wnRDataSize = 0; - int32 dwnTTL = 0; - - dwError = - DNSMarshallDomainName( hSendBuffer, - pDNSRecord->RRHeader.pDomainName ); - BAIL_ON_ERROR( dwError ); - - wnType = htons( pDNSRecord->RRHeader.wType ); - dwError = - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) & wnType, - sizeof( int16 ), &dwRead ); - BAIL_ON_ERROR( dwError ); - - wnClass = htons( pDNSRecord->RRHeader.wClass ); - dwError = - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) & wnClass, - sizeof( int16 ), &dwRead ); - BAIL_ON_ERROR( dwError ); - - dwnTTL = htonl( pDNSRecord->RRHeader.dwTTL ); - dwError = - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) & dwnTTL, - sizeof( int32 ), &dwRead ); - BAIL_ON_ERROR( dwError ); - - wnRDataSize = htons( pDNSRecord->RRHeader.wRDataSize ); - dwError = - DNSMarshallBuffer( hSendBuffer, ( uint8 * ) & wnRDataSize, - sizeof( int16 ), &dwRead ); - BAIL_ON_ERROR( dwError ); - - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSMarshallRData( HANDLE hSendBuffer, DNS_RR_RECORD * pDNSRecord ) -{ - int32 dwError = 0; - int32 dwWritten = 0; - - dwError = - DNSMarshallBuffer( hSendBuffer, pDNSRecord->pRData, - pDNSRecord->RRHeader.wRDataSize, - &dwWritten ); - BAIL_ON_ERROR( dwError ); - - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSStdAddQuestionSection( DNS_REQUEST * pDNSRequest, - DNS_QUESTION_RECORD * pDNSQuestion ) -{ - int32 dwNumQuestions = 0; - int32 dwError = 0; - - dwNumQuestions = pDNSRequest->wQuestions; - - dwError = DNSReallocMemory( ( uint8 * ) pDNSRequest->ppQuestionRRSet, - ( void * ) &pDNSRequest->ppQuestionRRSet, - ( dwNumQuestions + - 1 ) * sizeof( DNS_QUESTION_RECORD * ) - ); - BAIL_ON_ERROR( dwError ); - - *( pDNSRequest->ppQuestionRRSet + dwNumQuestions ) = pDNSQuestion; - - pDNSRequest->wQuestions += 1; - - error: - - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSStdAddAdditionalSection( DNS_REQUEST * pDNSRequest, - DNS_RR_RECORD * pDNSRecord ) -{ - int32 dwNumAdditionals = 0; - int32 dwError = 0; - - dwNumAdditionals = pDNSRequest->wAdditionals; - dwError = DNSReallocMemory( pDNSRequest->ppAdditionalRRSet, - ( void * ) &pDNSRequest-> - ppAdditionalRRSet, - ( dwNumAdditionals + - 1 ) * sizeof( DNS_RR_RECORD * ) ); - BAIL_ON_ERROR( dwError ); - - *( pDNSRequest->ppAdditionalRRSet + dwNumAdditionals ) = pDNSRecord; - - pDNSRequest->wAdditionals += 1; - - error: - return dwError; -} - -/********************************************************************* -*********************************************************************/ - -int32 DNSStdCreateStdRequest( DNS_REQUEST ** ppDNSRequest ) -{ - int32 dwError = 0; - DNS_REQUEST *pDNSRequest = NULL; - -#if 0 - int16 wRecursionDesired = RECURSION_DESIRED; - int16 wParameter = QR_QUERY; - int16 wOpcode = OPCODE_QUERY; -#endif - dwError = - DNSAllocateMemory( sizeof( DNS_REQUEST ), - ( void * ) &pDNSRequest ); - BAIL_ON_ERROR( dwError ); - - dwError = DNSGenerateIdentifier( &pDNSRequest->wIdentification ); - BAIL_ON_ERROR( dwError ); - -/* - wOpcode <<= 1; - wRecursionDesired <<= 7; - wParameter |= wOpcode; - wParameter |= wRecursionDesired; -*/ - pDNSRequest->wParameter = 0x00; - - *ppDNSRequest = pDNSRequest; - - return dwError; - - error: - - *ppDNSRequest = NULL; - return dwError; -} |