1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/security/authorisation/userpromptservice/policies/source/policylist.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,226 @@
1.4 +/*
1.5 +* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
1.6 +* All rights reserved.
1.7 +* This component and the accompanying materials are made available
1.8 +* under the terms of the License "Eclipse Public License v1.0"
1.9 +* which accompanies this distribution, and is available
1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.11 +*
1.12 +* Initial Contributors:
1.13 +* Nokia Corporation - initial contribution.
1.14 +*
1.15 +* Contributors:
1.16 +*
1.17 +* Description:
1.18 +*
1.19 +*/
1.20 +
1.21 +
1.22 +#include "policylist.h"
1.23 +#include "policyreader.h"
1.24 +#include "promptrequest.h"
1.25 +#include <f32file.h>
1.26 +#include <ups/upserr.h>
1.27 +#include "upslog.h"
1.28 +
1.29 +using namespace UserPromptService;
1.30 +
1.31 +// CPolicyList::TId ----------------------------------------------------------
1.32 +EXPORT_C CPolicyList::TId::TId()
1.33 +/**
1.34 +Constructor
1.35 +*/
1.36 + : iServerSid(), iServiceId(TUid::Null())
1.37 + {
1.38 + }
1.39 +
1.40 +EXPORT_C CPolicyList::TId::TId(const TSecureId& aServerSid, const TServiceId& aServiceId)
1.41 +/**
1.42 +Constructor
1.43 +@param aServerSid The secure id of the system server
1.44 +@param aServiceId The UID of the service.
1.45 +*/
1.46 + : iServerSid(aServerSid), iServiceId(aServiceId)
1.47 + {
1.48 + }
1.49 +
1.50 +EXPORT_C TBool CPolicyList::TId::operator==(const CPolicyList::TId& aId) const
1.51 +/**
1.52 +Tests whether this policy list id is euivalent to another policy list id.
1.53 +
1.54 +@param aId The policy list id object to compare this object against.
1.55 +@return ETrue if the system server secure id and the service UID match;
1.56 + otherwise, EFalse is returned.
1.57 +*/
1.58 + {
1.59 + return (iServerSid == aId.iServerSid && iServiceId == aId.iServiceId);
1.60 + }
1.61 +
1.62 +EXPORT_C void CPolicyList::TId::IdL(const TDesC& aPolicyFile, CPolicyList::TId& aId)
1.63 +/**
1.64 +Determines the policy list id from the name of the policy file.
1.65 +@param aPolicyFile The filename of the policy file.
1.66 +@param aId The id object to populate.
1.67 +
1.68 +@leave KErrUpsInvalidPolicyFileName if the policy file is not in the correct format.
1.69 +*/
1.70 + {
1.71 + TParse* p = new (ELeave) TParse();
1.72 + CleanupStack::PushL(p);
1.73 + TInt err(KErrNone);
1.74 +
1.75 + if ((err = p->Set(aPolicyFile, NULL, NULL)) == KErrNone)
1.76 + {
1.77 + TPtrC n = p->NameAndExt();
1.78 + _LIT(KPolicyFilePattern, "ups_????????_????????.rsc");
1.79 +
1.80 + if (n.MatchF(KPolicyFilePattern) != KErrNotFound)
1.81 + {
1.82 + TUint32 serverSid;
1.83 + TLex l(n.Mid(4,8));
1.84 + if ((err = l.Val(serverSid, EHex)) == KErrNone)
1.85 + {
1.86 + TUint32 serviceId;
1.87 + l = n.Mid(13,8);
1.88 + if ((err = l.Val(serviceId, EHex)) == KErrNone)
1.89 + {
1.90 + aId.iServerSid = TSecureId(serverSid);
1.91 + aId.iServiceId = TServiceId::Uid(serviceId);
1.92 + }
1.93 + }
1.94 + }
1.95 + }
1.96 +
1.97 + if (err != KErrNone)
1.98 + {
1.99 + User::Leave(KErrUpsInvalidPolicyFileName);
1.100 + }
1.101 +
1.102 + CleanupStack::PopAndDestroy(p);
1.103 + }
1.104 +
1.105 +EXPORT_C void CPolicyList::TId::AppendNameToPath(TDes& aFileName) const
1.106 + {
1.107 + _LIT(KPolicyFileNameFormat, "ups_%08x_%08x.rsc");
1.108 + aFileName.AppendFormat(KPolicyFileNameFormat, iServerSid.iId, iServiceId.iUid);
1.109 + }
1.110 +
1.111 +// CPolicyList ---------------------------------------------------------------
1.112 +EXPORT_C CPolicyList* CPolicyList::NewL(const CPolicyList::TId& aId, CPolicyReader& aReader)
1.113 +/**
1.114 +Factory method for creating policy list objects.
1.115 +@param aId The id (system server SID and service id) of the UPS policy file.
1.116 +@param aReader The policy file resource parser.
1.117 +@return A pointer to the new policy list.
1.118 +*/
1.119 + {
1.120 + CPolicyList* self = CPolicyList::NewLC(aId, aReader);
1.121 + CleanupStack::Pop(self);
1.122 + return self;
1.123 + }
1.124 +
1.125 +EXPORT_C CPolicyList* CPolicyList::NewLC(const CPolicyList::TId& aId, CPolicyReader& aReader)
1.126 +/**
1.127 +Factory method for policy list objects. A pointer to the new policy list object is placed
1.128 +on the cleanup stack.
1.129 +
1.130 +@param aId The id (system server SID and service id) of the UPS policy file.
1.131 +@param aReader The policy file resource parser.
1.132 +@return A pointer to the new policy list.
1.133 +*/
1.134 + {
1.135 + CPolicyList* self = new(ELeave) CPolicyList(aId);
1.136 + CleanupStack::PushL(self);
1.137 + self->ConstructL(aReader);
1.138 + return self;
1.139 + }
1.140 +
1.141 +CPolicyList::CPolicyList(const CPolicyList::TId& aId) : iId(aId)
1.142 +/**
1.143 +Constructor
1.144 +@param aId The ID of the UPS policy list file.
1.145 +*/
1.146 + {
1.147 + }
1.148 +
1.149 +CPolicyList::~CPolicyList()
1.150 +/**
1.151 +Destructor
1.152 +*/
1.153 + {
1.154 + delete iDefaultPolicy;
1.155 + iPolicies.ResetAndDestroy();
1.156 + }
1.157 +
1.158 +void CPolicyList::ConstructL(CPolicyReader& aReader)
1.159 +/**
1.160 +Second phase constructor that reads all policies in the policy file.
1.161 +@param aReader The policy reader instance.
1.162 +*/
1.163 + {
1.164 + const TPolicyHeader& hdr = aReader.Header();
1.165 + iServiceConfig.iServiceId = iId.iServiceId.iUid;
1.166 + iServiceConfig.iPolicy = hdr.iAuthPolicy;
1.167 + iServiceConfig.iMajorVersion = hdr.iMajorVersion;
1.168 + iServiceConfig.iMinorVersion = hdr.iMinorVersion;
1.169 +
1.170 + CPolicy* p(0);
1.171 + while ((p = aReader.NextPolicyL()) != 0)
1.172 + {
1.173 + CleanupStack::PushL(p);
1.174 + iPolicies.AppendL(p);
1.175 + CleanupStack::Pop(p);
1.176 + }
1.177 +
1.178 + iDefaultPolicy = aReader.DefaultPolicyL();
1.179 + }
1.180 +
1.181 +EXPORT_C const CPolicy* CPolicyList::Match(const CPromptRequest& aRequest) const
1.182 +/**
1.183 +Tests each policy in the list in turn and returns the first matching policy. If no match
1.184 +is found then a 'default' policy object is returned.
1.185 +
1.186 +@param aRequest The request to match against the policies.
1.187 +@return A pointer to the policy object to use for the request.
1.188 +*/
1.189 + {
1.190 + TInt n = iPolicies.Count();
1.191 + const CPolicy* p(0);
1.192 + for (TInt i = 0; i < n; ++i)
1.193 + {
1.194 + if (iPolicies[i]->Matches(aRequest.ClientSid(), aRequest.Destination(), aRequest.SecurityResult()))
1.195 + {
1.196 + p = iPolicies[i];
1.197 + DEBUG_PRINTF5(_L8("Using policy %d for client sid = 0x%08x, system server sid = 0x%08x, service id = 0x%08x"),
1.198 + i, aRequest.ClientSid().iId, aRequest.ServerSid().iId, aRequest.ServiceId().iUid);
1.199 + break;
1.200 + }
1.201 + }
1.202 +
1.203 + if (! p)
1.204 + {
1.205 + DEBUG_PRINTF4(_L8("Using default policy for client sid = 0x%08x, system server sid = 0x%08x, service id = 0x%08x"),
1.206 + aRequest.ClientSid().iId, aRequest.ServerSid().iId, aRequest.ServiceId().iUid);
1.207 + p = iDefaultPolicy;
1.208 + }
1.209 + return p;
1.210 + }
1.211 +
1.212 +EXPORT_C const CPolicyList::TId& CPolicyList::Id() const
1.213 +/**
1.214 +Gets the ID that associates a list of policies with a system server SID and service ID.
1.215 +@return The ID of the policy list.
1.216 +*/
1.217 + {
1.218 + return iId;
1.219 + }
1.220 +
1.221 +EXPORT_C const TServiceConfig& CPolicyList::ServiceConfig() const
1.222 +/**
1.223 +Gets the service configuration information for this policy file. This is used
1.224 +by the UPS system-server API to determine whether or not to invoke the UPS.
1.225 +@return A const reference to the service configuration information.
1.226 +*/
1.227 + {
1.228 + return iServiceConfig;
1.229 + }