tcpiputils/dnd/src/resolver.cpp
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:33:58 +0100
branchRCL_3
changeset 58 8d540f55e491
parent 57 abbed5a4b42a
child 75 c1029e558ef5
permissions -rw-r--r--
Revert incorrect RCL_3 drop: Revision: 201035 Kit: 201035
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// resolver.cpp - name resolver
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//
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#include <in_sock.h>
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#include <timeout.h>
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#include "listener.h"
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#include "resolver.h"
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#include "engine.h"
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#include "hosts.h"
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#include <networking/dnd_err.h>
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#include "dns_ext.h"
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#include "inet6log.h"
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#ifdef DND_DCM_EXTENSION
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#include "dnd.hrh"		// EDndFlush
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#endif
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#ifdef EXCLUDE_SYMBIAN_DNS_PUNYCODE
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#undef SYMBIAN_DNS_PUNYCODE
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#endif //EXCLUDE_SYMBIAN_DNS_PUNYCODE
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struct SQueryStep
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	{
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	EDnsQType iQType;			// the query type
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	};
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struct SQueryExtension
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	{
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	const TDesC *iPrefix;
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	SQueryStep iQuery;
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	};
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// ...for GetByAddr, perform only PTR query (for each server)
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const SQueryStep KGetByAddress[1] =
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	{
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	{ EDnsQType_PTR }
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	};
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// ...for GetByName, try first AAAA and then A (for each server)
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const SQueryStep KGetByName1[2] =
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	{
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	{ EDnsQType_AAAA },
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	{ EDnsQType_A }
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	};
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// ...for GetByName, try first A and then AAAA (for each server)
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const SQueryStep KGetByName2[2] =
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	{
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	{ EDnsQType_A },
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	{ EDnsQType_AAAA }
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	};
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// Define the search order of the sources
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const TDnsServerScope KSourceOrder[] =
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	{
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	EDnsServerScope_HOSTFILE,	// 1. Search hosts file first
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	EDnsServerScope_UC_GLOBAL,	// 2. Search global DNS
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#ifdef LLMNR_ENABLED
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	EDnsServerScope_MC_LOCAL,	// 3. Try Link Local Multicast
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#endif
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	};
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const SQueryExtension KQueryExtension[] =
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	{
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#if 0
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	{ &KDnsExtQType_A,		EDnsQType_A },
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	{ &KDnsExtQType_AAAA,	EDnsQType_AAAA },
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	{ &KDnsExtQType_MX,		EDnsQType_MX },
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	{ &KDnsExtQType_NS,		EDnsQType_NS },
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	{ &KDnsExtQType_SOA,	EDnsQType_SOA },
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	{ &KDnsExtQType_CNAME,	EDnsQType_CNAME },
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	{ &KDnsExtQType_PTR,	EDnsQType_PTR },
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	{ &KDnsExtQType_SRV,	EDnsQType_SRV },
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	{ &KDnsExtQType_NAPTR,	EDnsQType_NAPTR },
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	{ &KDnsExtQType_ANY,	EDnsQType_ANY }
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#else
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	// Workaround for ARMV5 compiler bug? Above declaration always
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	// produces 80 bytes of writable global data. The following
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	// ugly definition does not.
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	{ (const TDesC *)&KDnsExtQType_A.iTypeLength,		EDnsQType_A },
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	{ (const TDesC *)&KDnsExtQType_AAAA.iTypeLength,	EDnsQType_AAAA },
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	{ (const TDesC *)&KDnsExtQType_MX.iTypeLength,		EDnsQType_MX },
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	{ (const TDesC *)&KDnsExtQType_NS.iTypeLength,		EDnsQType_NS },
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	{ (const TDesC *)&KDnsExtQType_SOA.iTypeLength,		EDnsQType_SOA },
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	{ (const TDesC *)&KDnsExtQType_CNAME.iTypeLength,	EDnsQType_CNAME },
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	{ (const TDesC *)&KDnsExtQType_PTR.iTypeLength,		EDnsQType_PTR },
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	{ (const TDesC *)&KDnsExtQType_SRV.iTypeLength,		EDnsQType_SRV },
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	{ (const TDesC *)&KDnsExtQType_NAPTR.iTypeLength,	EDnsQType_NAPTR },
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	{ (const TDesC *)&KDnsExtQType_ANY.iTypeLength,		EDnsQType_ANY }
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#endif
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	};
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// KMaxQuerySessions
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// *****************
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/**
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// The maximum number of query sessions for single resolver,
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// for example, supporting A and AAAA query, requires this
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// to be at least 2.
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// (if someone ever adds A6 to the list, it needs to be 3).
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*/
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const TUint KMaxQuerySessions = 2;
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// KMaxDeprecated
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// **************
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/**
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// The size of the deprecated answers buffer. When processing
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// the replies for GetByName, the resolver will first return
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// those A and AAAA answers, for which there is an existing
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// route and source address in the current system. Other answers
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// are put into deprecated buffer, and returned after the
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// "good" answers.
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*/
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const TUint KMaxDeprecated = 20;
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class CDndResolver;
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/**
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// The resolver state automaton for one DNS query.
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//
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// This executes the state automaton for a single DNS query
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// (for example A, AAAA, MX, etc.). The processing includes
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// automatic retransmissions (potentially to multiple DNS
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// servers) and timeout handling 
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//
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// The query process is started by Start() and it will
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// then proceed independently to the conclusion.
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// When the query has completed or failed,
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// CDndResolver::GetNextAnswer() is called.
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//
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// In some cases an error is considered to be non-recoverable,
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// and instead of calling GetNextAnswer(), CDndResolver::QueryDone(error)
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// is called instead. This cancel the main query processing and
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// return the indicated error directly to the client process
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// (RHostResolver).
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//
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*/
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class TQuerySession: public MDnsResolver
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	{
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	friend class TQuerySessionTimeoutLinkage;
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public:
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	// Default constructor
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	TQuerySession();
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	// Supplement default constructor
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	void Init(CDndResolver *const aResolver);
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	// Open a new session to the DNS handler
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	void Open();
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	// Close the session with the DNS handler
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	void Close();
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	// Start a DNS query on the session
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	TBool Start(EDnsQType aQType);
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	MDnsSession *iSession;		//< Session handle with DndDnsclient
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	TInt iStatus;				//< Session status / next record to retrieve (if >= 0)
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	EDnsQType iQType;			//< the query type
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private:
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	static inline TInt Max(const TInt a, const TInt b) { return a > b ? a : b;}
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	// A callback method when the timeout expires
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	void Timeout(const TTime &aNow);
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	// Request a call to Timeout after specified time (seconds)
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	void SetTimer(TUint aTimeout);
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	// A callback method when the request to DNS handler completes
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	void ReplyCallback(const TInt aErr);
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	// Cancel pending operations
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	void Cancel();
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	// Activate a query in the DNS handler
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	void SendDnsQuery();
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	// Internal, handles the common part of timeout and reply callbacks
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	void Event(TBool aTimeout);
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	CDndResolver *iResolver;	//< The back pointer to resolver
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	TUint8 iQueryRetry;			//< Current retry index (for the current step)
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	TUint8 iQueryTimeouts;		//< Number of true timeouts (used by some resolver modes)
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	TUint8 iServerCount;		//< used in "spray mode" to count the servers.
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	TUint iWaitingQuerySent:1;	//< used in detecting and timing out interface startup.
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	TUint iWaitingAfterSpray:1;	//< used only in "spray mode"
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	TUint iSendingQuery:1;		//< set to 1, when DoQueryL is being called (recursion safeguard in SendDnsQuery)
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	TUint iPendingQuery:1;		//< set to 1, when DoQueryL is required (recursion safeguard in SendDnsQuery)
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	TUint iQueryTimeoutValue;	//< The current timeout for waiting the reply AFTER packet is sent
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public:	// Needed for gcc!
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	RTimeout iTimeout;
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#ifdef _LOG
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	TBuf<2> iName;
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#endif
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	};
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// This ungainly manoevure is forced on us because the offset is not evaluated early enough by GCC3.4 to be
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// passed as a template parameter
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#if defined(__X86GCC__) || defined(__GCCE__)
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#define KQuerySessionTimeoutLinkageOffset 28
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__ASSERT_COMPILE(KQuerySessionTimeoutLinkageOffset == _FOFF(TQuerySession, iTimeout));
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#else
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#define KQuerySessionTimeoutLinkageOffset _FOFF(TQuerySession, iTimeout)
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#endif
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class TQuerySessionTimeoutLinkage : public TimeoutLinkage<TQuerySession, KQuerySessionTimeoutLinkageOffset>
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	{
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public:
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	static void Timeout(RTimeout &aLink, const TTime &aNow, TAny * /*aPtr*/)
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		{
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		Object(aLink)->Timeout(aNow);
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		}
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	};
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/**
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// A structure to remember an answer to be retrieved later.
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*/
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class TDeprecatedAnswer
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	{
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public:
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	inline TDeprecatedAnswer() {}
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	inline TDeprecatedAnswer(TUint8 aStep, TUint8 aIndex) : iStep(aStep), iIndex(aIndex) {}
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	TUint8 iStep;		//< query step # (selects session)
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	TUint8 iIndex;		//< answer index within the query reply
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	};
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/**
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The real implementation of the MDndResolver.
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Function:
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@li	Accepts the request (see TDnsRequestBase) from the application for name resolving.
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@li	Tries to resolve the request from host files or DNS sources
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@li	Once the request is over (response obtained or time out),
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	it sends back the response (again TDnsRequestBase) and/or error code
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	to the application which requested it.
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See also \ref resolvers
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This class is designed so that it can be reused for serving
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different clients. It has the following simplified state diagram:
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@verbatim
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                   _________________________
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                 /      reuse               \
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                V                            |
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 construct -> Start() ---> WaitQuery() --> Stop() --> destruct
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                               /  \          ^
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                              |    |         |
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                               \  /         /
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                            QueryDone() ___/
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@endverbatim
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@li Start()
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	serving a specific RHostResolver session. This method is called
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	from CDndListener, after it has received a new query request
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	from the stack.
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@li WaitQuery()
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	the resolver is waiting for next incoming request
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	from the RHostResolver.
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@li QueryDone()
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	queue a result to be returned to the RHostResolver.
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@li Stop()
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	serving the current rquest. This may be called either
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	internally or from CDndListener.
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*/
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class CDndResolver : public CBase, public MDndResolver, public MDnsResolver
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	{
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	friend class TQuerySession;
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public:
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	CDndResolver(const TInt aId, CDndEngine &aControl, MDndListener &aListener, 
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					MDnsSource &aDnsclient);
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	void Start(const TDnsMessageBuf &aMsg);	// Starts the resolver
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	const TDesC8 &ReplyMessage();			// Return reference to the reply buffer.
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	TUint16 Session() const;				// Return session id of the current query.
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	void Stop();							// Stop the resolver
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	virtual ~CDndResolver();
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	static inline TInt Max(const TInt a, const TInt b) { return a > b ? a : b;}
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	const TTime &RequestTime() const { return iRequestTime; }
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	// only used for GetHostName
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	void ReplyCallback(const TInt aResult);
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private:
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	// Return a result to the application
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	void QueryDone(TInt aResult);
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	// Wait for the next query from the application
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	void WaitQuery();
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	// Select next source for the name resolving (HOSTS, DNS, LLMNR)
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	void NextSource();
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	// Cancel all activity and resources being used for the current source
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	void StopSource();
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	TBool StartSource();
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	// Return next result from HOSTS file source
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	void HOSTFILE_Next();
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#ifdef _LOG
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	// Print out debugging information
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	void ShowQuery(const TDnsMessage &aName, TInt aReply);
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#endif
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	// Retrieve next answer, possibly starting retrieval of additional information from source
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	void GetNextAnswer();
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	// Used to find alternate DNS servers (in some operating modes)
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	void ProbeServers();
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private:
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	const TInt iId;					//< Resolver instance id (for debugging use)
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	TTime iRequestTime;				//< Time at which the request was received from the application
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	// The Query buffer for the reply
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	TDnsMessageBuf iBuffer;
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	// The current orignal query being processed.
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	TDnsMessageBuf iCurrentQuery;
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	const TDnsServerScope *iSourceList;	//< Information sources
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	TDnsServerScope iSourceNow;		//< The current source
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	TUint iQueryStepMaxTime;		//< Maximum time allowed for single query step to complete
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	TUint iQueryStepMinTime;		//< Minimum time for query step (usage depends on mode)
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	TUint8 iQueryStepRetries;		//< Additional retries after the primary attempt
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	TInt iSourceCount;				//< Remaining number of sources.
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	TInt iNext;						//< Non-zero, if executing Next operation
58
8d540f55e491 Revert incorrect RCL_3 drop:
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	TBool iSuffixSupportEnabled;	//< Flag to switch on/off the domain suffix list support in name resolution
0
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	// Specify Current Query state
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	const SQueryStep *iQueryStep;	//< The Current Query Process (what queries to make)
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	SQueryStep iSpecificQuery;		//< Used in implementing the Specific Single Queries
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	TQuerySession iSession[KMaxQuerySessions]; //< Currently active queries or completed results
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	TDeprecatedAnswer iDeprecate[KMaxDeprecated];	//< Buffer to store the delayed answers
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	TUint iPhase;
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	TUint8 iDeprecatedTop;		//< Number of delayed top answers in iDeprecate[]
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   341
	TUint8 iDeprecatedBottom;	//< Number of delayed bottom answers in iDeprecate[]
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parents:
diff changeset
   342
	TUint8 iQuerySteps;			//< Number of Query Steps in the process
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   343
	TUint8 iStepCount;			//< Number of Query Steps activated so far
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   344
	TUint8 iSessionCount;		//< Number of Query Sessions currently active
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   345
	/*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   346
	// The scope level of the current query.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
	//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
	// Currently the level for GetByName and Query is always "NETWORK".
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
	// But, if implemented, it could be "LINK LOCAL", based on the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
	// queried name, for example, if it ends with ".local".
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
	//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
	// The level of GetByAddress is the scope level of the address being
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
	// queried.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
	//
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
	// The query scope limits the sources available to the query: the scope
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
	// of the source must be less or equal to the query scope. (For example,
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
	// GetByAddress for a link local address is only asked from link local
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
	// name resolvers).
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
	*/
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
	TUint8 iQueryScope;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
	TUint iQueryActive:1;		//< set to 1, when a query is being processed
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
	TUint iQueryIsAddr:1;		//< set to 1, when current query is GetByAddr, = 0, otherwise
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
	TUint iQueryIsSpecial:1;	//< set to 1, when current query is special (for exact DNS query type)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
	TUint iReadyForAnswer:1;	//< set to 1, when an answer can be delivered back to RHostResolver.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
	TUint iQueryDoneWait:1;		//< Tells what active object is currently waiting: = 0, if WaitQuery, = 1, if QueryDone
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
	TUint iQueryComplete:1;		//< set to 1, when query is completed fully (no Next allowed)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
	TUint32 iQueryFlags;		//< Flags to the NewQuery (KDnsMofidier_RD, ...)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
	TQuerySession iProbe;		//< Use for server probing
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
	CDndEngine &iControl;		//< The control context (for sending errors etc.)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
	MDndListener &iListener;	//< Only for calling KeepRunning()
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
	MDnsSource &iDnsclient;		//< DNS protocol handler
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
	};
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
// CDndResolverBase::New
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
// *********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
MDndResolver *MDndResolver::New(const TInt aId, CDndEngine &aControl, MDndListener &aListener, MDnsSource &aDnsClient)
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
	* Create a new instance of CDndResolver.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
	* This static function creates the real object instance of
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
	* the class that has been derived from CDndResolverBase.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
	* This way, the real implementation of the class is hidden
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
	* from any other module (the real class CDndResolver is only
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
	* declared and known within resolver.cpp module).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
	* @param aId identifies the resolver instance (only for debuggind purpose)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
	* @param aControl provides access to the DND environment
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
	* @param aListener
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
	*	provides access to the socket listener, which manages the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
	*	pool of CDndResolver instances and delivers the requests
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
	*	to the resolvers.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
	* @param aDnsClient
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
	*	provides access to the DNS protocol driver, which implements
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
	*	the DNS protocol details, and manages the associated UDP and
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
	*	TCP sockets.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
	* @return
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
	*	@li	NULL, if object could not be created (out of memory)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
	*	@li non-NULL, is a pointer to the newly constructed CDndResolver instance
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
	return new(ELeave) CDndResolver(aId, aControl, aListener, aDnsClient);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
// Constructor
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
CDndResolver::CDndResolver(const TInt aId, CDndEngine &aControl, MDndListener &aListener, MDnsSource &aDnsclient)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
	: iId(aId), iControl(aControl), iListener(aListener), 
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
	  iDnsclient(aDnsclient)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
	// Because array elements cannot have other than default constructors,
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
	// need to initialize the iSession[] and iProbe here..
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
	for (TInt i = KMaxQuerySessions; --i >= 0; )
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
		iSession[i].Init(this);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
		LOG(iSession[i].iName.Format(_L("%d"), i));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
	iProbe.Init(this);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
	LOG(iProbe.iName = _L("*"));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
// Destructor
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
CDndResolver::~CDndResolver()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
	// Need to cancel TQuerySession's (if any active)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
	for (TInt i = KMaxQuerySessions; --i >= 0; )
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
		iSession[i].Close();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
#ifdef _LOG
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
// CDndResolver::ShowQuery(aName)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
// ******************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
void CDndResolver::ShowQuery(const TDnsMessage &aPacket, TInt aReply)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
	* Displays the current query or reply (only a debugging tool).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
	* @param	aPacket	Query or Reply data
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
	* @param	aReply	Query vs. reply
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
	_LIT(KReply, " Reply ");
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
	_LIT(KQuery, " Query ");
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
	const TDesC &mode = aReply ? KReply : KQuery;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
	switch (aPacket.iType)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
		case KDnsRequestType_GetByName:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
		case KDnsRequestType_GetByAddress:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
			const TNameRecord &rec = aPacket.NameRecord();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
			TBuf<50> tmp;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
			TInetAddr::Cast(rec.iAddr).OutputWithScope(tmp);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
			if (aReply)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
				Log::Printf(_L("\tresolver[%d] SESSION %d Reply [%d], %S, [%S] result=%d"), iId, aPacket.iSession, rec.iFlags, &rec.iName, &tmp, aPacket.iNext);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
			else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
				Log::Printf(_L("\tresolver[%d] SESSION %d Query (%d), %S, [%S]"), iId, aPacket.iSession, aPacket.iNext, &rec.iName, &tmp);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
			break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
		case KDnsRequestType_TDnsQuery:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
			if (aReply)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
				const TDndReply &reply = aPacket.Reply();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
				Log::Printf(_L("\tresolver[%d] SESSION %d Special Reply, type=%d result=%d"), iId, aPacket.iSession, (TInt)reply.RRType(), aPacket.iNext);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
			else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
				const TDnsQuery &query = aPacket.Query();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
				Log::Printf(_L8("\tresolver[%d] SESSION %d Special Query (%d), %S type=%d"), iId, aPacket.iSession, aPacket.iNext, &query.Data(), (TInt)query.Type());
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
			break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
		case KDnsRequestType_SetHostName:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
			Log::Printf(_L("\tresolver[%d] SESSION %d SetHostName(%S)%S%d"), iId, aPacket.iSession, &aPacket.HostName(), &mode, aPacket.iNext);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
			break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
		case KDnsRequestType_GetHostName:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
			Log::Printf(_L("\tresolver[%d] SESSION %d GetHostName(%S)%S%d"), iId, aPacket.iSession, &aPacket.HostName(), &mode, aPacket.iNext);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
			break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
		default:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
			Log::Printf(_L("\tresolver[%d] SESSION %d Bad TDnsMessagePacket%S(%d,%d)"), iId, aPacket.iSession, &mode, aPacket.iType, aPacket.iNext);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
			break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
#endif
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
// CDndResolver::Stop
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
// ******************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
void CDndResolver::Stop()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
	* Stop serving the current request.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
	* Terminate all pending activity (if any) and mark the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
	* CDndResolver instace available for a new session.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
	iReadyForAnswer = 0;		// ...just to be safe.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
	StopSource();				// stop all DNS activity related to this client, if any
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
	if (iQueryActive)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
		iQueryActive = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
        iDnsclient.QueryEnd();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
	LOG(Log::Printf(_L("\tresolver[%d] SESSION %d Stopped"), iId, iCurrentQuery().iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
	iCurrentQuery().iSession = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
	iQueryDoneWait = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
// CDndResolver::WaitQuery
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   514
// ***********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   515
void CDndResolver::WaitQuery()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   516
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   517
	* Put the CDndResolver to wait a next request from the RHostResolver.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   518
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   519
	* The next request could be a Next, or a new GetByName, GetByAddr or
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   520
	* Query.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   521
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   522
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   523
	iReadyForAnswer = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   524
	if (iQueryActive)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   525
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   526
		// There could be active sessions
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   527
		// doing some queries while we wait for
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   528
		// client to request something (doing
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   529
		// parallel queries).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   530
		// Leave "query active" on, if any found.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   531
		// The information is retrieved during this
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   532
		// time is/will be available only for
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   533
		// the Next() query.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   534
		for (TInt i = 0;; ++i)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   535
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   536
			if (i == iSessionCount)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   537
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   538
				iQueryActive = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   539
				iDnsclient.QueryEnd();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   540
				break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   541
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   542
			if (iSession[i].iStatus == KRequestPending)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   543
				break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   544
			};
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   545
	  }
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   546
	iQueryDoneWait = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   547
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   548
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   549
// CDndResolver::QueryDone
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   550
// ***********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   551
void CDndResolver::QueryDone(TInt aResult)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   552
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   553
	* A query has completed, return a result to the RHostResolver.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   554
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   555
	* Prepare for the reply into iBuffer for writing to the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   556
	* "gateway socket". When the reply sender of the listener
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   557
	* is ready to start the transfer, it calls ReplyMessage()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   558
	* for the buffer to be sent.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   559
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   560
	* @param	aResult
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   561
	*	the result code of the query. If KErrNone, the buffer
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   562
	*	will contain one answer (TNameRecord or some
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   563
	*	TDnsQryRespBase variant).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   564
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   565
	* If the reply is an error (< 0), this stops all resolving
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   566
	* activity that might be still going on. An error reply is
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   567
	* always final, continuation with a Next() is not possible.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   568
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   569
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   570
	if (!iReadyForAnswer)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   571
		return;		// Gateway is not expecting answer now...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   572
	iReadyForAnswer = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   573
	iQueryDoneWait = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   574
	iBuffer().iNext = aResult;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   575
	if (aResult < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   576
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   577
		StopSource();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   578
		iBuffer.SetLength(iBuffer().HeaderSize());
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   579
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   580
	LOG(ShowQuery(iBuffer(), 1));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   581
	iListener.PostReply();	
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   582
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   583
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   584
// CDndResolver::ReplyMessage
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   585
// **************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   586
const TDesC8 &CDndResolver::ReplyMessage()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   587
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   588
	* Return the reply message buffer.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   589
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   590
	* Called by listener sender when it is ready to send the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   591
	* reply message to the gateway socket. If this resolver
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   592
	* has a reply to send, this must return the buffer.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   593
	* If no reply is to be sent for this resolver, this must
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   594
	* return an empty buffer reference.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   595
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   596
	* @return The reply buffer (empty = no reply to send).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   597
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   598
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   599
	_LIT8(KNoReply, "");
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   600
	if (iQueryDoneWait)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   601
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   602
		const TInt result = iBuffer().iNext;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   603
		// Only set iQueryComplete, *never* clear it, if already set!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   604
		if (result != KErrCompletion && result < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   605
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   606
			iQueryComplete = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   607
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   608
		iQueryDoneWait = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   609
		return iBuffer;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   610
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   611
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   612
		return KNoReply;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   613
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   614
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   615
// CDndResolver::Session
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   616
// *********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   617
TUint16 CDndResolver::Session() const
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   618
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   619
	* Return the current session id.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   620
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   621
	* This function is used by the listener to find out the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   622
	* session id of the request that is currently being
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   623
	* processed by this resolver.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   624
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   625
	* If the resolver is idle (no request under process), then
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   626
	* this must return 0. All valid session ids are non-zero.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   627
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   628
	* @return The session (or 0, if none).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   629
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   630
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   631
	return iCurrentQuery().iSession;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   632
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   633
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   634
void CDndResolver::GetNextAnswer()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   635
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   636
	* Collect, sort and return answers to the application.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   637
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   638
	* Collecting answers from DNS. The answers are sorted into
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   639
	* three classes:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   640
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   641
	* @li (1)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   642
	*	usable addresses (current system has a route and source address for them)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   643
	* @li (2)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   644
	*	addresses, for which no route exists are put into "TOP" category (if application
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   645
	*	uses one of these, then most likely, a new interface needs to be activated). These
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   646
	*	are returned after all usable addresses in class (1) have been returned..
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   647
	* @li (3)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   648
	*	other (non-address) answers to the query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   649
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   650
	* If a GetByName request needs two queries (for example A and AAAA),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   651
	* the queries may be performed in parallel or one after the other.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   652
	* If queries are performed one at time, this method will automaticly
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   653
	* start the second query, after the answers (if any) from the first query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   654
	* have been processed.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   655
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   656
	* If a query produces any answer belonging to the class (1), they are
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   657
	* returned to the application as soon as they become available.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   658
	* If queries are not done in parallel, and application is satisfied
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   659
	* with the first answer (does not issue Next()), then the second
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   660
	* query is never sent.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   661
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   662
	* If a query produces no answers that sort into class (1), both queries
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   663
	* are always executed fully, before any answers are returned (from class
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   664
	* (2) or (3)) to the application.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   665
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   666
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   667
	if (!iReadyForAnswer)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   668
		return;		// Gateway not expecting answer now...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   669
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   670
	iBuffer = iCurrentQuery;			// Initialize reply to orginal query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   671
	TInt pending = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   672
	TInt notfound = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   673
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   674
	// Initialize query buffer flags.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   675
	iBuffer().NameRecord().iFlags = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   676
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   677
	if (iPhase == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   678
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   679
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   680
		// Collect Phase
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   681
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   682
		for (TInt i = 0; i < iSessionCount; ++i)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   683
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   684
			TQuerySession &session = iSession[i];
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   685
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   686
			if (session.iStatus < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   687
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   688
				// Either pending or no results available (all processed or some error state)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   689
				// Detect pending queries (only possible to happen if doing queries in parallel)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   690
				pending |= (session.iStatus == KRequestPending);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   691
				notfound |= (session.iStatus == KErrDndBadName);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   692
				continue;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   693
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   694
			for (;;)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   695
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   696
				//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   697
				// Values iSession[i].iStatus >= 0 [0..n] is used for remembering
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   698
				// the number of the next answer to retrieve from the record
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   699
				const TInt ret = session.iSession->DoNext(iBuffer, session.iStatus);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   700
				if (ret != KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   701
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   702
					// All available answers have been retrieved.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   703
					session.iStatus = ret;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   704
					break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   705
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   706
				// NOTE: session.iStatus++!!!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   707
				const TDeprecatedAnswer answer((TUint8)(i), (TUint8)(session.iStatus++));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   708
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   709
				if (iQueryIsSpecial)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   710
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   711
					// All answers are returned as is for special query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   712
					// (no sorting or any other processing is done)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   713
					QueryDone(KErrNone);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   714
					return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   715
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   716
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   717
				const TInetAddr &addr = TInetAddr::Cast(iBuffer().NameRecord().iAddr);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   718
				if (addr.IsUnspecified() || (addr.Family() != KAfInet && addr.Family() != KAfInet6))
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   719
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   720
					// ...things like CNAME's fall into here. If running out of
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   721
					// space, then just ignore these (Top entries are more important)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   722
					if (iDeprecatedTop < iDeprecatedBottom)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   723
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   724
						iDeprecate[--iDeprecatedBottom] = answer;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   725
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   726
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   727
				else if (iDnsclient.CheckAddress(addr) != KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   728
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   729
					// There is no route for the address, don't return this yet
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   730
					if (iDeprecatedTop < KMaxDeprecated)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   731
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   732
						iDeprecate[iDeprecatedTop++] = answer;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   733
						// If running out of space, overwrite deprecated bottom entries
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   734
						// as needed...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   735
						if (iDeprecatedTop > iDeprecatedBottom)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   736
							iDeprecatedBottom = iDeprecatedTop;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   737
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   738
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   739
				else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   740
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   741
					// This is a usable address as is, return immediately
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   742
					QueryDone(KErrNone);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   743
					return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   744
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   745
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   746
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   747
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   748
		// RR records from the current query have been processed.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   749
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   750
		if (pending)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   751
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   752
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d Request(s) pending"), iId, iCurrentQuery().iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   753
			// At least one query session is still in progress, continue waiting
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   754
			// Should set some timeout? what?
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   755
			return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   756
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   757
		else if (!notfound && iStepCount < iQuerySteps)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   758
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   759
			// ... but there are alternate steps left, try the next step...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   760
			//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   761
			// If all DNS servers worked right, there should be no reason to probe
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   762
			// servers with A, if the probe for AAAA fails. However, sadly, there
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   763
			// broken things out there, which timeout on AAAA, but do reply to A.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   764
			// Thus, if probing is active, restart it for new query type.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   765
			if (iProbe.iSession)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   766
				(void)iProbe.iSession->PickDefaultServer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   767
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   768
			TQuerySession &session = iSession[iSessionCount++];
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   769
			session.Open();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   770
			if (session.Start(iQueryStep[iStepCount++].iQType))
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   771
				return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   772
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   773
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   774
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   775
	// Return TOP deprecated
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   776
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   777
	while (iPhase < iDeprecatedTop)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   778
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   779
		const MDnsSession *session = iSession[iDeprecate[iPhase].iStep].iSession;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   780
		const TInt ret = session->DoNext(iBuffer, iDeprecate[iPhase].iIndex);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   781
		// There is no route for the address, add info for application.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   782
		iBuffer().NameRecord().iFlags |= EDnsNoRoute;		
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   783
		iPhase++;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   784
		if (ret == KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   785
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   786
			QueryDone(KErrNone);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   787
			return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   788
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   789
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   790
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   791
	// Return BOTTOM deprecated
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   792
	// (only for GetByAddr or for Next() after GetByName)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   793
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   794
	iPhase = KMaxDeprecated;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   795
	if (iQueryIsAddr || iNext)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   796
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   797
		while (iDeprecatedBottom < KMaxDeprecated)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   798
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   799
			const MDnsSession *session = iSession[iDeprecate[iDeprecatedBottom].iStep].iSession;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   800
			const TInt ret = session->DoNext(iBuffer, iDeprecate[iDeprecatedBottom].iIndex);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   801
			iDeprecatedBottom++;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   802
			if (ret == KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   803
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   804
				QueryDone(KErrNone);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   805
				return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   806
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   807
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   808
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   809
	if (iNext)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   810
		QueryDone(iQueryIsAddr ? KErrDndAddrNotFound : KErrDndNameNotFound);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   811
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   812
		// No answers returned from current source, try next
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   813
		NextSource();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   814
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   815
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   816
// CDndResolver::ProbeServers
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   817
// **************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   818
void CDndResolver::ProbeServers()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   819
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   820
	* Probing servers.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   821
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   822
	* Send a dummy duplicate query to the next alternate
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   823
	* server. Used in some resolver modes. The result is ignored
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   824
	* by resolver, but the side effect is that the DNS protocol
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   825
	* handler will detect a good server, and make it the default
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   826
	* for the next try.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   827
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   828
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   829
	if (iSessionCount == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   830
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   831
	if (iProbe.iSession == NULL)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   832
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   833
		// Use the first primary session (iSession[0]) as a template
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   834
		// for the "probing".
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   835
		if (iSession[0].iSession == NULL)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   836
			return;	// ...oops!?
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   837
		iProbe.iQType = iSession[0].iQType;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   838
		iProbe.iSession = iDnsclient.OpenSession(&iProbe);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   839
		if (iProbe.iSession == NULL)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   840
			return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   841
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d Probing QType=%d (%S) -- Assigned DNS session [%u]"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   842
			iId, (TInt)iCurrentQuery().iSession, (TInt)iProbe.iQType, &iProbe.iName, (TInt)iProbe.iSession->Instance())); 
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   843
		// Use the current query as a probe starting point
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   844
		//(void)iProbe.iSession->NewQuery(*iSession[0].iSession);
58
8d540f55e491 Revert incorrect RCL_3 drop:
Pat Downey <patd@symbian.org>
parents: 57
diff changeset
   845
		(void)iProbe.iSession->NewQuery(iCurrentQuery(),iSourceNow,iQueryFlags | KDnsModifier_PQ, iSuffixSupportEnabled);
0
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   846
		
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   847
		// initialize server (which is not tried)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   848
		(void)iProbe.iSession->PickDefaultServer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   849
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   850
	// Start query, but only if there really is another server address
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   851
	if (iProbe.iSession->PickNewServer())
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   852
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   853
		// Note: if DoQueryL fails, we do nothing. This is just probing...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   854
		TRAP_IGNORE(iProbe.iSession->DoQueryL(iRequestTime, iProbe.iQType));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   855
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   856
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   857
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   858
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   859
// CDndResolver::StopSource
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   860
// ************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   861
void CDndResolver::StopSource()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   862
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   863
	* Stop all resolving activity from current source.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   864
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   865
	* The answer can be searched from different sources (such as hosts file,
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   866
	* global DNS or link local name resolution). Answers from different sources are
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   867
	* never mixed, and the first source that gives an answer is used.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   868
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   869
	* StopSource() cancels all activity (if any) from current source.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   870
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   871
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   872
	// Release sessions, if they were created
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   873
	while (iSessionCount > 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   874
		iSession[--iSessionCount].Close();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   875
	iProbe.Close();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   876
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   877
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   878
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   879
// CDndResolver::NextSource
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   880
// ************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   881
void CDndResolver::NextSource()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   882
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   883
	* Activate search from next source.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   884
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   885
	* The answer can be searched from different sources (such as hosts file,
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   886
	* global DNS or link local name resolution). Answers from different sources are
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   887
	* never mixed, and the first source that gives an answer is used.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   888
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   889
	* NextSource activates the next query source or terminates the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   890
	* query, if all sources have been tried.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   891
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   892
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   893
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   894
	while (iSourceCount > 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   895
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   896
		StopSource();	// Cleanup from previous source, if any
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   897
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   898
		// Replies from different source are never mixed
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   899
		// Restart collecting answers too.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   900
		iPhase = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   901
		iDeprecatedTop = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   902
		iDeprecatedBottom = KMaxDeprecated;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   903
		iSourceNow = *iSourceList++;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   904
		iSourceCount -= 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   905
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   906
		// Is this source valid for the query scope (e.g. if source is global
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   907
		// DNS, one should not try to query site or link local queries from it!)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   908
		// On the other hand, it is legal to make global scope query to link
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   909
		// local or site scope servers.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   910
		const TUint level = (TUint)Abs((TInt)iSourceNow);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   911
		if (iQueryScope < level)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   912
			continue;	// Query scope is less than servers scope, try another source!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   913
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   914
		if (StartSource())
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   915
			return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   916
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   917
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   918
	// The name could not be resolved by any source
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   919
	QueryDone(iQueryIsAddr ? KErrDndAddrNotFound : KErrDndNameNotFound);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   920
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   921
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   922
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   923
// CDndResolver::StartSource
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   924
// *************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   925
TBool CDndResolver::StartSource()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   926
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   927
	* Initiate a source.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   928
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   929
	* Start/Activate retrieval of query answers from the current source,
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   930
	* as defined by CDndResolver::iSourceNow. Three classes of
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   931
	* sources are supported:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   932
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   933
	* @li	HOST file (= 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   934
	* @li	Unicast DNS server ( < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   935
	* @li	Multicast name resolution service ( > 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   936
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   937
	* The absolute value of iSourceNow is the scope
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   938
	* level of the name resolution source (2 = link local, etc..)  
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   939
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   940
	* @returns
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   941
	*	@li	TRUE, if process has been started (or answer already resolved).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   942
	*	@li	FALSE, if the source is not available or usable
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   943
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   944
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   945
	// If you define more complex queries, needing more than current max of
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   946
	// steps, then bump up the KMaxQuerySessions! Panic on debug, on release
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   947
	// just ignore the extra steps.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   948
	ASSERT(iQuerySteps <= KMaxQuerySessions);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   949
	if (iQuerySteps > KMaxQuerySessions)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   950
		iQuerySteps = KMaxQuerySessions;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   951
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   952
	
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   953
	const TDndConfigParameters &cf = iControl.GetConfig();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   954
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   955
	TUint query_order = cf.iQueryOrder;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   956
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   957
	if (iSourceNow == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   958
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   959
		// HOST file or hostname source
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   960
		if (!iQueryIsSpecial)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   961
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   962
			// Check if the query is for local host name or my own address.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   963
			TInt res;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   964
			if (iQueryIsAddr)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   965
				res = iDnsclient.GetByAddress(iBuffer().iId, TInetAddr::Cast(iBuffer().NameRecord().iAddr), iNext, iBuffer().NameRecord().iName);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   966
			else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   967
				res = iDnsclient.GetByName(iBuffer().iId, iBuffer().NameRecord().iName, iNext, TInetAddr::Cast(iBuffer().NameRecord().iAddr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   968
			if (res == KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   969
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   970
				LOG(Log::Printf(_L("\tresolver[%d] SESSION %d matched local hostname/address"), iId, iCurrentQuery().iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   971
				iBuffer().NameRecord().iFlags = EDnsHostName;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   972
				QueryDone(KErrNone);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   973
				return TRUE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   974
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   975
			// ..and now the HOSTS file
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   976
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d SEARCHING hosts file"), iId, iCurrentQuery().iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   977
			TRequestStatus tmp;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   978
			if (iQueryIsAddr)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   979
				iControl.iHostsFile.GetByAddress(iBuffer().NameRecord(), tmp);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   980
			else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   981
				iControl.iHostsFile.GetByName(iBuffer().NameRecord(), tmp);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   982
			if (tmp.Int() == KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   983
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   984
				iBuffer().NameRecord().iFlags = EDnsHostsFile;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   985
				QueryDone(KErrNone);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   986
				return TRUE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   987
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   988
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   989
	
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   990
		if (iBuffer().iId == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   991
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   992
			// If there is no scope is specified, then only hosts file
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   993
			// is looked.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   994
			QueryDone(KErrCompletion);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   995
			return TRUE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   996
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   997
		// No Answer from the host file, move on to the next
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   998
		return FALSE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   999
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1000
	else if (iSourceNow < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1001
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1002
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1003
		// Unicast DNS source
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1004
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1005
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d SEARCHING unicast DNS"), iId, iCurrentQuery().iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1006
		// Setup parameters for basic query step (steps are done one after another)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1007
		iQueryStepMaxTime = Max(cf.iMinTime, cf.iMaxTime / iQuerySteps);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1008
		iQueryStepMinTime = cf.iMinTime;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1009
		iQueryStepRetries = (TUint8)cf.iRetries;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1010
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1011
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1012
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1013
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1014
		// Multicast DNS source
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1015
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1016
		// Setup parameters for basic query step 
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1017
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d SEARCHING multicast DNS"), iId, iCurrentQuery().iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1018
		query_order |= KQueryOrder_Parallel;	// Multicast steps are always done in parallel
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1019
#ifdef LLMNR_ENABLED
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1020
		// Assumed: "multicast DNS" == LLMNR!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1021
		iQueryStepMaxTime = Max(cf.iLlmnrMinTime, cf.iLlmnrMaxTime);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1022
		iQueryStepMinTime = cf.iLlmnrMinTime;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1023
		iQueryStepRetries = (TUint8)cf.iLlmnrRetries;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1024
#else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1025
		iQueryStepMaxTime = Max(cf.iMinTime, cf.iMaxTime);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1026
		iQueryStepMinTime = cf.iMinTime;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1027
		iQueryStepRetries = (TUint8)cf.iRetries;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1028
#endif
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1029
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1030
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1031
	// Start the query/queries
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1032
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1033
	TBool started = FALSE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1034
	iSessionCount = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1035
	iStepCount = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1036
	while (iStepCount < iQuerySteps)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1037
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1038
		TQuerySession &session = iSession[iSessionCount++];
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1039
		session.Open();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1040
		if (session.iSession == NULL)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1041
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1042
			// If the required session cannot be allocated,
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1043
			// abort the request totally.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1044
			QueryDone(session.iStatus);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1045
			return TRUE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1046
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1047
		started |= session.Start(iQueryStep[iStepCount++].iQType);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1048
		if (started && (query_order & KQueryOrder_Parallel) == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1049
			break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1050
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1051
	return started;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1052
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1053
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1054
// CDndResolver::HOSTFILE_Next
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1055
// ***************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1056
void CDndResolver::HOSTFILE_Next()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1057
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1058
	* Return next answer from HOST file.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1059
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1060
	* The HOST file answers are not currently sorted in any way. The
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1061
	* answers are returned as is, in whatever order the host file
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1062
	* module returns them.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1063
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1064
	* Only TNameRecord based queries are asked from the HOST file
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1065
	* (e.g. the standart RHostResolver::GetByName and RHostResolver::GetByAddr).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1066
	* No special queries.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1067
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1068
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1069
	// Should never get called with special queries, but if that
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1070
	// happens, just return KErrEof as a safety measure...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1071
	TRequestStatus tmp(KErrEof);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1072
	if (!iQueryIsSpecial)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1073
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1074
		// Temp. kludge: next indicator for hosts file reader is passed in iFlags!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1075
		iBuffer().NameRecord().iFlags = iNext;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1076
		if (iQueryIsAddr)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1077
			iControl.iHostsFile.GetByAddress(iBuffer().NameRecord(), tmp);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1078
		else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1079
			iControl.iHostsFile.GetByName(iBuffer().NameRecord(), tmp);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1080
		// Note: iHostFile returns the result code in TRequestStatus.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1081
		iBuffer().NameRecord().iFlags = EDnsHostsFile;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1082
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1083
	QueryDone(tmp.Int());
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1084
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1085
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1086
// CDndResolver::Start
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1087
// *******************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1088
void CDndResolver::Start(const TDnsMessageBuf &aMsg)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1089
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1090
	* Process a new request from listener/RHostResolver.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1091
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1092
	* @param aMsg The request message
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1093
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1094
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1095
	const TDndConfigParameters &cf = iControl.GetConfig();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1096
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1097
	// Sanity checks -- determine the min size of a proper request
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1098
	const TInt min_size = aMsg().HeaderSize() +
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1099
		TInt(aMsg().iType == KDnsRequestType_TDnsQuery ? sizeof(TDnsQuery) :
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1100
			 aMsg().iType == KDnsRequestType_GetByName ? sizeof(TNameRecord) :
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1101
			 aMsg().iType == KDnsRequestType_GetByAddress ? sizeof(TNameRecord) :
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1102
			 sizeof(THostName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1103
	if (aMsg.Length() < min_size) // If short query => treat as cancel!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1104
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1105
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d Cancelled by client (len=%d)"), iId, iCurrentQuery().iSession,  aMsg.Length()));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1106
		Stop();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1107
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1108
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1109
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1110
	// Stack should never start new request before delivering the response.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1111
	// Exception is the Cancel-request which is treated above.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1112
	ASSERT(iQueryDoneWait == 0);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1113
	
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1114
	iBuffer = aMsg;
58
8d540f55e491 Revert incorrect RCL_3 drop:
Pat Downey <patd@symbian.org>
parents: 57
diff changeset
  1115
	iSuffixSupportEnabled = cf.iSuffixSupportEnabled;
0
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1116
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1117
	// A new command/query from the application
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1118
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1119
	LOG(ShowQuery(iBuffer(), 0));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1120
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1121
	// If query is not active, it will be after this
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1122
	if (iQueryActive == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1123
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1124
		iQueryActive = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1125
		iDnsclient.QueryBegin();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1126
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1127
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1128
	iReadyForAnswer = 1;			// an answer can now be returned...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1129
	iRequestTime.UniversalTime();	// Set the time of request
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1130
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1131
	iNext = iBuffer().iNext;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1132
	if (iNext)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1133
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1134
		// This is Next() processing, retrieving
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1135
		// the additional records.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1136
		if (iQueryComplete)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1137
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1138
			// An application/something is stubbornly calling Next() after
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1139
			// receiving an error (query complete) or the query was "one shot"
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1140
			// that returned "KErrNone", and was complete at that (no Next).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1141
			// This error should terminate the Next() loop in app!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1142
			QueryDone(KErrNotFound);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1143
			return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1144
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1145
		iBuffer = iCurrentQuery;	// Reset to orginal query (Next() cannot change the query)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1146
		if (iSourceNow == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1147
			HOSTFILE_Next();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1148
		else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1149
			GetNextAnswer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1150
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1151
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1152
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1153
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1154
		// Start processing of new query, not Next()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1155
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1156
		iQueryComplete = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1157
		iCurrentQuery = iBuffer;		// Remember current original query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1158
		iQueryFlags = KDnsModifier_RD;	// By default, request recursive querying from the server(s).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1159
		StopSource();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1160
		switch (iBuffer().iType)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1161
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1162
			case KDnsRequestType_GetByName:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1163
			case KDnsRequestType_GetByAddress:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1164
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1165
				TNameRecord &rec = iCurrentQuery().NameRecord();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1166
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1167
				if (iCurrentQuery().iType == KDnsRequestType_GetByAddress)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1168
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1169
					iQueryIsAddr = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1170
					// The scope of GetByAddress query is determined from the scope level
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1171
					// of the address being queried.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1172
					iQueryScope = (TUint8)TInetAddr::Cast(rec.iAddr).Ip6Address().Scope();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1173
					iQueryIsSpecial = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1174
					iQueryStep = KGetByAddress;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1175
					iQuerySteps = sizeof(KGetByAddress) / sizeof(KGetByAddress[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1176
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1177
				else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1178
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1179
					iQueryIsAddr = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1180
					// All getbyname queries are global for now. As a future feature
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1181
					// It might be considered, that single label or names ending with
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1182
					// ".local" would have have local scope -- msa
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1183
					iQueryScope = KIp6AddrScopeNetwork;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1184
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1185
#ifdef DND_DCM_EXTENSION
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1186
					iQueryIsSpecial = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1187
					TInt i;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1188
					while ((i = rec.iName.Locate('?')) >= 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1189
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1190
						const TPtrC prefix = rec.iName.Left(i+1);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1191
						if (prefix.Compare(KDnsNonrecursive) == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1192
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1193
							iQueryFlags &= ~KDnsModifier_RD;	// Reset recursive flag.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1194
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1195
						else if (cf.iQueryHack)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1196
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1197
							// Special Query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1198
							iQueryIsSpecial = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1199
							TInt q = sizeof(KQueryExtension) / sizeof(KQueryExtension[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1200
							while (--q >= 0 && prefix.Compare(*KQueryExtension[q].iPrefix) != 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1201
								/* NOTHING */;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1202
							if (q < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1203
								{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1204
								// Requested query is not supported
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1205
								QueryDone(KErrNotSupported);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1206
								return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1207
								}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1208
							iQueryStep = &KQueryExtension[q].iQuery;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1209
							iQuerySteps = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1210
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1211
						else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1212
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1213
							QueryDone(KErrNotSupported);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1214
							return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1215
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1216
						rec.iName.Delete(0,i+1);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1217
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1218
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1219
					if (!iQueryIsSpecial)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1220
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1221
						// Standard GetByName
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1222
						if ((cf.iQueryOrder & KQueryOrder_PreferA) == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1223
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1224
							iQueryStep = KGetByName1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1225
							iQuerySteps = sizeof(KGetByName1) / sizeof(KGetByName1[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1226
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1227
						else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1228
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1229
							iQueryStep = KGetByName2;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1230
							iQuerySteps = sizeof(KGetByName2) / sizeof(KGetByName2[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1231
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1232
						// If query is to be limited to only one (either A or AAAA), do
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1233
						// the preferred query only (the first in the chosen list).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1234
						if (cf.iQueryOrder & KQueryOrder_OneQuery)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1235
							iQuerySteps = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1236
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1237
#else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1238
					const TInt i = rec.iName.Locate('?');
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1239
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1240
					if (i < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1241
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1242
						// Standard GetByName
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1243
						iQueryIsSpecial = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1244
						if ((cf.iQueryOrder & KQueryOrder_PreferA) == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1245
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1246
							iQueryStep = KGetByName1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1247
							iQuerySteps = sizeof(KGetByName1) / sizeof(KGetByName1[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1248
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1249
						else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1250
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1251
							iQueryStep = KGetByName2;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1252
							iQuerySteps = sizeof(KGetByName2) / sizeof(KGetByName2[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1253
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1254
						// If query is to be limited to only one (either A or AAAA), do
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1255
						// the preferred query only (the first in the chosen list).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1256
						if (cf.iQueryOrder & KQueryOrder_OneQuery)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1257
							iQuerySteps = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1258
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1259
					else if (cf.iQueryHack)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1260
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1261
						// Special Query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1262
						iQueryIsSpecial = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1263
						const TPtrC prefix = rec.iName.Left(i+1);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1264
						TInt q = sizeof(KQueryExtension) / sizeof(KQueryExtension[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1265
						while (--q >= 0 && prefix.Compare(*KQueryExtension[q].iPrefix) != 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1266
							/* NOTHING */;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1267
						rec.iName.Delete(0,i+1);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1268
						if (q < 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1269
							{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1270
							// Requested query is not supported
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1271
							QueryDone(KErrNotSupported);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1272
							return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1273
							}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1274
						iQueryStep = &KQueryExtension[q].iQuery;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1275
						iQuerySteps = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1276
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1277
					else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1278
						{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1279
						QueryDone(KErrNotSupported);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1280
						return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1281
						}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1282
#endif
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1283
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1284
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1285
				break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1286
			case KDnsRequestType_TDnsQuery:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1287
				// Special Query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1288
				iQueryIsSpecial = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1289
				iQueryIsAddr = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1290
				iQueryScope = KIp6AddrScopeNetwork;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1291
				iSpecificQuery.iQType = EDnsQType(iBuffer().Query().Type());
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1292
				iQueryStep = &iSpecificQuery;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1293
				iQuerySteps = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1294
#ifdef DND_DCM_EXTENSION
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1295
				if (iBuffer().Query().Type() == KDnsQTypeCacheClear)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1296
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1297
					TRAPD(err, iListener.HandleCommandL(EDndFlush));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1298
					iQueryComplete = 1;	// "Next()" is not allowed!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1299
					QueryDone(err);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1300
					return;							
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1301
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1302
#endif
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1303
				break;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1304
			case KDnsRequestType_SetHostName:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1305
				iQueryComplete = 1;	// "Next()" is not allowed (only needed for ret == KErrNone case)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1306
				QueryDone(iDnsclient.SetHostName(iBuffer().iId, iBuffer().HostName()));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1307
				return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1308
			case KDnsRequestType_GetHostName:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1309
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1310
				const TInt ret = iDnsclient.GetHostName(iBuffer().iId, iBuffer().HostName(), *this);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1311
				if (ret <=  0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1312
					{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1313
					iQueryComplete = 1;	// "Next()" is not allowed (only needed for ret == KErrNone case)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1314
					QueryDone(ret);		// GetHostName completed, we are done!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1315
					}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1316
				// GetHostName is pending on uniquenes test (ret == 1)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1317
				return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1318
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1319
			default:
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1320
				QueryDone(KErrNotSupported);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1321
				return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1322
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1323
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1324
		// Setup NS source (now fixed, make configurable later)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1325
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1326
		iSourceList = KSourceOrder;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1327
		iSourceCount = sizeof(KSourceOrder) / sizeof(KSourceOrder[0]);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1328
		NextSource();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1329
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1330
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1331
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1332
// Only used for GetHostName
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1333
void CDndResolver::ReplyCallback(const TInt aResult)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1334
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1335
	iBuffer = iCurrentQuery;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1336
	QueryDone(aResult);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1337
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1338
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1339
//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1340
//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1341
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1342
TQuerySession::TQuerySession() : iTimeout(TQuerySessionTimeoutLinkage::Timeout)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1343
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1344
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1345
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1346
// TQuerySession::Init
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1347
// *******************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1348
void TQuerySession::Init(CDndResolver *const aResolver)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1349
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1350
	* Initialize structure.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1351
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1352
	* A separate Init is required, because arrays cannot have non-defaulf
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1353
	* constructors. Need to patch the iResolver link "manually".
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1354
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1355
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1356
	iResolver = aResolver;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1357
	// ...for other members, the default constructor is sufficient
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1358
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1359
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1360
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1361
// TQuerySession::Open
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1362
// *******************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1363
void TQuerySession::Open()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1364
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1365
	* Activate a query session.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1366
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1367
	* Assume CDndResolver::iCurrentQuery holds the request from the client.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1368
	* Establish a session with the DNS protocol provides and initialize
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1369
	* it with the current question (NewQuery).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1370
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1371
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1372
	iSession = iResolver->iDnsclient.OpenSession(this);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1373
	if (iSession == NULL)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1374
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1375
		// Cannot allocate a session
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1376
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- OUT OF DNS SESSIONS!"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1377
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1378
		iStatus = KErrNoMemory;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1379
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1380
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1381
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1382
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- Assigned DNS session [%u]"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1383
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, (TInt)iSession->Instance()));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1384
		// ..if NewQuery returns an error, it will be the result of the query. Otherwise
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1385
		// use the KErrEof as initial value.
58
8d540f55e491 Revert incorrect RCL_3 drop:
Pat Downey <patd@symbian.org>
parents: 57
diff changeset
  1386
		iStatus = iSession->NewQuery(iResolver->iCurrentQuery(), iResolver->iSourceNow, iResolver->iQueryFlags, iResolver->iSuffixSupportEnabled);
0
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1387
		if (iStatus == KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1388
			iStatus = KErrEof;	// No content yet.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1389
#ifdef SYMBIAN_DNS_PUNYCODE
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1390
		else // in case the Query String is UTF-16 encoded
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1391
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1392
			iResolver->QueryDone(iStatus);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1393
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1394
#endif //SYMBIAN_DNS_PUNYCODE
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1395
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1396
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1397
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1398
// TQuerySession::SetTimer
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1399
// ***********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1400
void TQuerySession::SetTimer(TUint aTimeout)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1401
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1402
	* Request a Timeout() call after the specied number of seconds.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1403
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1404
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1405
	LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- set timeout = %ds"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1406
		iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, (TInt)aTimeout));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1407
	iResolver->iControl.Timer().Set(iTimeout, aTimeout);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1408
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1409
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1410
// TQuerySession::Start
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1411
// ********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1412
TBool TQuerySession::Start(EDnsQType aQType)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1413
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1414
	* Start the query process for a specific query type.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1415
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1416
	* @param aQType The query type (A, AAAA, MX, etc.)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1417
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1418
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1419
	iQType = aQType;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1420
	LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- Start"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1421
		iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1422
	iServerCount = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1423
	iQueryRetry = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1424
	iQueryTimeouts = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1425
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1426
	if (!iSession)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1427
		return FALSE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1428
	
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1429
	iStatus = KErrEof;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1430
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1431
	if (iSession->PickDefaultServer())
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1432
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1433
		SendDnsQuery();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1434
		return TRUE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1435
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1436
	return FALSE;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1437
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1438
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1439
// TQuerySession::Cancel
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1440
// *********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1441
void TQuerySession::Cancel()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1442
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1443
	* Cancel and stop all activity (if any) with this session.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1444
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1445
	* This cancels set timers and any DNS queries that are in
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1446
	* progress.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1447
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1448
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1449
	iTimeout.Cancel();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1450
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1451
	if (!iSession)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1452
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1453
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1454
	iSession->CancelQuery();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1455
	if (iStatus == KRequestPending)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1456
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1457
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- CANCELED"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1458
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1459
		iStatus = KErrCancel;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1460
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1461
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1462
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1463
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1464
// TQuerySession::Close
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1465
// ********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1466
void TQuerySession::Close()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1467
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1468
	* Close session.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1469
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1470
	* First calls Cancel() to call all activity, and then also
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1471
	* closes the session with DNS protocol provider.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1472
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1473
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1474
	iPendingQuery = 0;	// Cancel pending queries too!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1475
	Cancel();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1476
	if (!iSession)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1477
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1478
	iSession->Close();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1479
	LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- DNS [%u] closed"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1480
		iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, (TInt)iSession));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1481
	iSession = NULL;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1482
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1483
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1484
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1485
// TQuerySession::RecvReply
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1486
// ***********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1487
void TQuerySession::ReplyCallback(TInt aErr)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1488
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1489
	* Callback from DNS client.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1490
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1491
	* DNS client has completed something.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1492
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1493
	* @param aErr The completion result or some notify.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1494
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1495
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1496
	if (iStatus != KRequestPending)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1497
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1498
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- RecvReply(%d) Ignore event"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1499
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, aErr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1500
		return;	// Unexpected event, ignore!
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1501
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1502
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1503
	if (aErr > 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1504
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1505
		// Notify Messages, just ignore if not recognised.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1506
		if (aErr == KDnsNotify_QUERY_SENT)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1507
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1508
			if (iWaitingQuerySent)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1509
				{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1510
				iWaitingQuerySent = 0;	// got it...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1511
				LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- RecvReply(%d) Query Sent"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1512
					iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, aErr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1513
				SetTimer(iQueryTimeoutValue);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1514
				}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1515
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1516
		else if (aErr == KDnsNotify_HAVE_SERVERLIST)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1517
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1518
			// Currently does nothing with this.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1519
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- RecvReply(%d) Has serverlist"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1520
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, aErr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1521
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1522
		else if (aErr == KDnsNotify_USING_TCP)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1523
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1524
			iQueryRetry = iResolver->iQueryStepRetries;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1525
			iQueryTimeoutValue = iResolver->iQueryStepMaxTime;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1526
			iWaitingQuerySent = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1527
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- RecvReply(%d) Query using TCP, disable retransmit"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1528
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, aErr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1529
			SetTimer(iQueryTimeoutValue);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1530
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1531
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1532
	else if (aErr != KErrNone && (aErr > KErrDndNameNotFound || aErr < KErrDndServerUnusable))
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1533
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1534
		// The error is not query specific DND error code, assume it is
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1535
		// something general and abort the query totally.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1536
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- RecvReply(%d) Query completed"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1537
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, aErr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1538
		iResolver->QueryDone(aErr);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1539
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1540
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1541
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1542
		iStatus = aErr;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1543
		iTimeout.Cancel();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1544
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- RecvReply(%d) Handle event"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1545
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, aErr));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1546
		Event(FALSE);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1547
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1548
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1549
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1550
// TQuerySession::Timeout
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1551
// **********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1552
void TQuerySession::Timeout(const TTime &aNow)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1553
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1554
	* No response from the DNS handler within specified time, handle timeout.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1555
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1556
	* @param aNow The current time
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1557
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1558
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1559
	LOG(Log::Printf(_L("-->\tresolver[%d] SESSION %d QType=%d (%S) -- timeout start"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1560
		iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1561
	if (iWaitingQuerySent)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1562
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1563
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1564
		// Don't wait forever, abort resolving if max setup time exceeded
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1565
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1566
		const TDndConfigParameters &cf = iResolver->iControl.GetConfig();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1567
		TTimeIntervalSeconds seconds;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1568
		if (aNow.SecondsFrom(iResolver->iRequestTime, seconds) != KErrNone ||
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1569
			seconds.Int() > STATIC_CAST(TInt, cf.iSetupTime))
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1570
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1571
			iStatus = KErrDndServerUnusable;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1572
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- Timeout, max wait expired [%d > %d]: %d"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1573
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, seconds.Int(), cf.iSetupTime, iStatus));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1574
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1575
		else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1576
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1577
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- Timeout, has waited %ds [max %d]"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1578
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName, seconds.Int(), cf.iSetupTime));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1579
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1580
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1581
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1582
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1583
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- timeout"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1584
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1585
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1586
	// Note that Timeout alone does not touch the iStatus, nor does it
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1587
	// cancel the request, if any is active. It's up to Event to decide
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1588
	// on these issues.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1589
	Event(TRUE);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1590
	LOG(Log::Printf(_L("<--\tresolver[%d] SESSION %d QType=%d (%S) -- timeout exit"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1591
		iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1592
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1593
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1594
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1595
// TQuerySession::Event
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1596
// ********************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1597
void TQuerySession::Event(TBool aTimeOut)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1598
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1599
	* Shared handling of session events: timeouts and DNS query completions.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1600
	*
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1601
	* @param aTimeOut is TRUE, if this is a timeout event; and FALSE, if
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1602
	*			event caused by DNS completion.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1603
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1604
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1605
	const TDndConfigParameters &cf = iResolver->iControl.GetConfig();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1606
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1607
	// Handle events from DNS or timeout
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1608
	// *********************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1609
	// TIMEOUT or REPLY to a pending query has been received
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1610
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1611
	const TBool server_unusable = (iStatus == KErrDndRefused || iStatus == KErrDndServerUnusable);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1612
	if (!aTimeOut && !server_unusable)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1613
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1614
		// This query has been completed with some definite result, notify
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1615
		// the main resolver to handle the reply.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1616
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1617
		iResolver->GetNextAnswer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1618
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1619
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1620
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1621
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1622
	if (iWaitingQuerySent && !server_unusable)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1623
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1624
		// Still waiting for the first query packet to be sent. Request a
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1625
		// resend attempt of the same query again (without counting it as
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1626
		// retry). This is a wait for getting interfaces up (normal timeouts
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1627
		// do not apply yet).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1628
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1629
		// Reload the query too (this is only sometimes needed with PTR
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1630
		// queries if the filter iLockId cannot be determined due to
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1631
		// missing interfaces. And only happens if query address was
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1632
		// without scope id.
58
8d540f55e491 Revert incorrect RCL_3 drop:
Pat Downey <patd@symbian.org>
parents: 57
diff changeset
  1633
		(void)iSession->NewQuery(iResolver->iCurrentQuery(), iResolver->iSourceNow, iResolver->iQueryFlags, iResolver->iSuffixSupportEnabled);
0
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1634
		SendDnsQuery();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1635
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1636
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1637
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1638
	if (aTimeOut)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1639
		iQueryTimeouts++;	// Timeout occurred while resolving the DNS Query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1640
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1641
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1642
	// Careful with iStatus: if timeout occurs, it is probably KRequestPending.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1643
	// Needs to be changed to something else, if GetNextAnswer is called (otherwise
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1644
	// it will think that there are pending query and may do nothing!)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1645
	//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1646
	if (cf.iSprayMode || iResolver->iSourceNow > 0 /* == multicast resolution mode */)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1647
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1648
		if (iWaitingAfterSpray)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1649
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1650
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- Delay after spray completed"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1651
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1652
			//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1653
			// The delay after "spray" has expired, now start a new round (a retry)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1654
			// (unless maximum retries has been reached)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1655
			//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1656
			iWaitingAfterSpray = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1657
			iQueryTimeouts = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1658
			(void)iSession->PickDefaultServer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1659
			iStatus = KErrTimedOut;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1660
			iServerCount = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1661
			++iQueryRetry;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1662
			if (iQueryRetry > iResolver->iQueryStepRetries)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1663
				iResolver->GetNextAnswer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1664
			else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1665
				SendDnsQuery();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1666
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1667
		else if (iSession->PickNewServer())
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1668
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1669
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- More servers to spray"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1670
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1671
			//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1672
			// Yet another server to spray, replicate query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1673
			//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1674
			iWaitingAfterSpray = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1675
			++iServerCount;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1676
			SendDnsQuery();	// Replicate query to another server
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1677
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1678
		else if (iQueryTimeouts > 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1679
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1680
			// All servers have been sprayed and at least one of them
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1681
			// has not answered, now wait maxtime - (servers * mintime),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1682
			// before starting the next spraying round
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1683
			//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1684
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- All servers sprayed, now wait results"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1685
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1686
			iWaitingAfterSpray = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1687
			const TInt maxtime = Max(iResolver->iQueryStepMinTime, iResolver->iQueryStepMaxTime / (iResolver->iQueryStepRetries+1));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1688
			SetTimer(Max(iResolver->iQueryStepMinTime, maxtime - iResolver->iQueryStepMinTime * iServerCount));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1689
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1690
		else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1691
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1692
			LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- All servers replied not found"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1693
				iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1694
			// All servers sprayed, and none of the short spray timeouts expired
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1695
			// (make a heuristic GUESS, that all servers replied, but all were either
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1696
			// unusable or "skip not found" is active. Just goto to the next step or
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1697
			// return not found.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1698
			iResolver->GetNextAnswer();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1699
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1700
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1701
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1702
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1703
		++iQueryRetry;	// This is a true retry
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1704
		if (iQueryRetry > iResolver->iQueryStepRetries ||
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1705
			(server_unusable && !iSession->PickNewServer()))
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1706
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1707
			iStatus = KErrTimedOut;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1708
			iResolver->GetNextAnswer();// Activates next query step or returns not found.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1709
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1710
		else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1711
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1712
			iResolver->ProbeServers();	// ...keep probing for alternate servers in parallel (at each timeout)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1713
			SendDnsQuery();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1714
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1715
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1716
	}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1717
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1718
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1719
// TQuerySession::SendDnsQuery
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1720
// ***************************
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1721
void TQuerySession::SendDnsQuery()
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1722
	/**
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1723
	* Activate a new DNS query to be sent.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1724
	*/
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1725
	{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1726
	if (iSendingQuery)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1727
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1728
		// Doing everyhing in callbacks forces extra work
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1729
		// to be done to prevent deep recursion...
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1730
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- NEW QUERY PENDING"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1731
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1732
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1733
		iPendingQuery = 1;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1734
		return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1735
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1736
	// Create an UDP message to the DNS
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1737
	do
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1738
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1739
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- SENDING DNS QUERY"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1740
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1741
		iStatus = KRequestPending;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1742
		iSendingQuery = 1;		// ..to detect dangerous recursion
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1743
		iPendingQuery = 0;		// ..to detect that a new query should be sent
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1744
		iWaitingQuerySent = 1; // Mark: waiting for QUERY_SENT
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1745
		TRAPD(err, (void)iSession->DoQueryL(iResolver->iRequestTime, iQType));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1746
		iSendingQuery = 0;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1747
		if (err != KErrNone)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1748
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1749
			// Assume some serious error situation and forget about
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1750
			// possible pending query, cancel everything with error.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1751
			iResolver->QueryDone(err);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1752
			return;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1753
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1754
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1755
	while (iPendingQuery);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1756
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1757
	if (iStatus == KRequestPending)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1758
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1759
		const TDndConfigParameters &cf = iResolver->iControl.GetConfig();
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1760
		const TUint maxtime = iResolver->iQueryStepMaxTime;
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1761
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1762
		// Compute the timeout for the next query (starts ticking
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1763
		// when the packet has been sent (after QUERY_SENT)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1764
		//
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1765
		if (cf.iSprayMode || iResolver->iSourceNow > 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1766
			iQueryTimeoutValue = iResolver->iQueryStepMinTime;	// Send to all servers using mintime 
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1767
		else if (cf.iRetries == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1768
			iQueryTimeoutValue = maxtime;		// No retries, just single query
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1769
		else if (iQueryRetry == 0)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1770
			iQueryTimeoutValue = iResolver->iQueryStepMinTime;	// This is the first send -- use min time
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1771
		else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1772
			{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1773
			// This a retransmission (divide the remaining time even with the retries)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1774
			iQueryTimeoutValue = Max(iResolver->iQueryStepMinTime, (maxtime - iResolver->iQueryStepMinTime) / iResolver->iQueryStepRetries);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1775
			}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1776
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- WAITING FOR SEND"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1777
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1778
		// Setup "poll" timer, if the
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1779
		// DNS side does not send the QUERY_SENT notification.
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1780
		// (retry count is not incremented, so it will "poll"
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1781
		// as long as notification/reply arrives or user cancels
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1782
		// the resolving).
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1783
		if (iWaitingQuerySent)
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1784
			SetTimer(cf.iSetupPoll);
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1785
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1786
	else
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1787
		{
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1788
		LOG(Log::Printf(_L("\tresolver[%d] SESSION %d QType=%d (%S) -- COMPLETED WITHIN"),
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1789
			iResolver->iId, iResolver->iCurrentQuery().iSession, (TInt)iQType, &iName));
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1790
		}
af10295192d8 Revision: 201004
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
  1791
	}