1 // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32utils\setcap\setcap.cpp

    15 // 

    16 //

    17 

    18 #include "setcap.h"

    19 

    20 #include <e32std.h>

    21 #include <e32std_private.h>

    22 

    23 GLDEF_D TBool CapabilitySet;

    24 GLDEF_D SCapabilitySet Capability;

    25 GLDEF_D TBool SecureIdSet;

    26 GLDEF_D TSecureId SecureId;

    27 GLDEF_D TBool VendorIdSet;

    28 GLDEF_D TVendorId VendorId;

    29 

    30 #ifdef __TOOLS__

    31 #define		Mem		HMem

    32 #include "h_utl.h"

    33 #endif //__TOOLS__

    34 

    35 #if !defined(__EPOC32__) && !defined(__LINUX__)

    36 

    37 GLDEF_C TInt SetCap(HANDLE hFile)

    38 	{

    39 	DWORD ret;

    40 	TText8 checkedUidBuf[sizeof(TCheckedUid)];

    41 	ReadFile(hFile,checkedUidBuf,sizeof(TCheckedUid),&ret,NULL);

    42 	if (ret!=sizeof(TCheckedUid))

    43 		goto close;

    44 

    45 	//Look at PE file for UID section

    46 	{

    47 	const TInt KPeHeaderAddrAddr=0x3c;

    48 	const TInt KPeHeaderAddrSize=0x01;

    49 	const TInt KNumberOfSectionsOffset=0x06;

    50 	const TInt KNumberOfSectionsSize=0x02;

    51 	const TInt KSectionTableOffset=0xf8;

    52 	const TInt KSectionHeaderSize=0x28;

    53 	const TInt KSectionNameLength=0x08;

    54 	const TInt KPtrToRawDataOffset=0x14;

    55 	const TInt KPtrToRawDataSize=0x04;

    56 	const TText8 peText[4]={'P','E',0,0};

    57 	const TText8 uidText[8]={'.','S','Y','M','B','I','A','N'};

    58 		

    59 	//Read address of start of PE header

    60 	if (SetFilePointer(hFile,KPeHeaderAddrAddr,0,FILE_BEGIN)==0xFFFFFFFF)

    61 		goto close;

    62 	TInt peAddr=0;

    63 	ReadFile(hFile,&peAddr,KPeHeaderAddrSize,&ret,NULL);

    64 	if (ret!=KPeHeaderAddrSize)

    65 		goto close;

    66 		

    67 	//Check it really is the start of PE header

    68 	if (SetFilePointer(hFile,peAddr,0,FILE_BEGIN)==0xFFFFFFFF)

    69 		goto close;

    70 	TText8 text[4];

    71 	ReadFile(hFile,text,4,&ret,NULL);

    72 	if (*(TInt32*)text!=*(TInt32*)peText)

    73 		goto close;

    74 		

    75 	//Read number of sections

    76 	if (SetFilePointer(hFile,peAddr+KNumberOfSectionsOffset,0,FILE_BEGIN)==0xFFFFFFFF)

    77 		goto close;

    78 	TInt sections=0;

    79 	ReadFile(hFile,&sections,KNumberOfSectionsSize,&ret,NULL);

    80 	if (ret!=KNumberOfSectionsSize)

    81 		goto close;

    82 

    83 	//Go through section headers looking for UID section

    84 	if (SetFilePointer(hFile,peAddr+KSectionTableOffset,0,FILE_BEGIN)==0xFFFFFFFF)

    85 		goto close;

    86 	TInt i=0;

    87 	for(;i<sections;i++)

    88 		{

    89 		TText8 name[KSectionNameLength];

    90 		ReadFile(hFile,name,KSectionNameLength,&ret,NULL);

    91 		if (ret!=KSectionNameLength)

    92 			goto close;

    93 		if (*(TInt64*)name==*(TInt64*)uidText)

    94 			break;

    95 		if (SetFilePointer(hFile,KSectionHeaderSize-KSectionNameLength,0,FILE_CURRENT)==0xFFFFFFFF)

    96 			goto close;

    97 		}

    98 	if (i==sections)

    99 		goto close;

   100 

   101 	//Read RVA/Offset

   102 	if (SetFilePointer(hFile,KPtrToRawDataOffset-KSectionNameLength,0,FILE_CURRENT)==0xFFFFFFFF)

   103 		goto close;

   104 	TInt uidOffset;

   105 	ReadFile(hFile,&uidOffset,KPtrToRawDataSize,&ret,NULL);

   106 	if (ret!=KPtrToRawDataSize)

   107 		goto close;

   108 

   109 	//SYMBIAN Header

   110 	if (SetFilePointer(hFile,uidOffset,0,FILE_BEGIN)==0xFFFFFFFF)

   111 		goto close;

   112 

   113 	TEmulatorImageHeader header;

   114 

   115 	ReadFile(hFile,&header,sizeof(header),&ret,NULL);

   116 	if (ret!=sizeof(header))

   117 		goto close;

   118 

   119 	// set new capabilities

   120 	if (CapabilitySet)

   121 		{

   122 		header.iS.iCaps = Capability;

   123 		}

   124 

   125 	// set new secure id and vendor id if specified

   126 	if (SecureIdSet)

   127 		{

   128 		header.iS.iSecureId = SecureId.iId;

   129 		}

   130 	if (VendorIdSet)

   131 		{

   132 		header.iS.iVendorId = VendorId.iId;

   133 		}

   134 

   135 	// save header values

   136 	Capability = header.iS.iCaps;

   137 	SecureId.iId = header.iS.iSecureId;

   138 	VendorId.iId = header.iS.iVendorId;

   139 

   140 	if (SetFilePointer(hFile,uidOffset,0,FILE_BEGIN)==0xFFFFFFFF)

   141 		goto close;

   142 

   143 	BOOL b = WriteFile(hFile,&header,sizeof(header),&ret,NULL);

   144 	if (b==FALSE)

   145 		goto close;

   146 

   147 	CloseHandle(hFile);

   148 	return KErrNone;

   149 	}

   150 close:

   151 	CloseHandle(hFile);

   152 	return KErrGeneral;

   153 	}

   154 

   155 #endif //__EPOC32__

   156 

   157 #ifndef __WINS__

   158 

   159 GLDEF_C TInt SetCap(E32ImageHeader* h)

   160 	{

   161 	TUint hdrfmt = h->HeaderFormat();

   162 	if (hdrfmt < KImageHdrFmt_V)

   163 		return KErrNotSupported;

   164 	E32ImageHeaderV* v = (E32ImageHeaderV*)h;

   165 	if (CapabilitySet)

   166 		v->iS.iCaps = Capability;

   167 	if (SecureIdSet)

   168 		v->iS.iSecureId = SecureId.iId;

   169 	if (VendorIdSet)

   170 		v->iS.iVendorId = VendorId.iId;	

   171 

   172 	// save header values

   173 	Capability = v->iS.iCaps;

   174 	SecureId.iId = v->iS.iSecureId;

   175 	VendorId.iId = v->iS.iVendorId;

   176 

   177 	// regenerate CRC

   178 	v->iHeaderCrc = KImageCrcInitialiser;

   179 	TUint32 crc = 0;

   180 	Mem::Crc32(crc, v, v->TotalSize());

   181 	v->iHeaderCrc = crc;

   182 	return KErrNone;

   183 	}

   184 

   185 #endif //__WINS__