diff --git a/trunk/libxmount_input/libxmount_input_ewf/libxmount_input_ewf.c b/trunk/libxmount_input/libxmount_input_ewf/libxmount_input_ewf.c index d01c5f0..ada05e6 100644 --- a/trunk/libxmount_input/libxmount_input_ewf/libxmount_input_ewf.c +++ b/trunk/libxmount_input/libxmount_input_ewf/libxmount_input_ewf.c @@ -1,297 +1,302 @@ /******************************************************************************* * xmount Copyright (c) 2008-2014 by Gillen Daniel * * * * xmount is a small tool to "fuse mount" various image formats and enable * * virtual write access. * * * * This program is free software: you can redistribute it and/or modify it * * under the terms of the GNU General Public License as published by the Free * * Software Foundation, either version 3 of the License, or (at your option) * * any later version. * * * * This program is distributed in the hope that it will be useful, but WITHOUT * * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * * more details. * * * * You should have received a copy of the GNU General Public License along with * * this program. If not, see . * *******************************************************************************/ #undef HAVE_LIBEWF_STATIC #include #include #include "../libxmount_input.h" #ifndef HAVE_LIBEWF_STATIC #include #else #include "libewf/include/libewf.h" #endif +#if !defined(LIBEWF_HANDLE) + // libewf version 2 no longer defines LIBEWF_HANDLE + #define HAVE_LIBEWF_V2_API +#endif + /******************************************************************************* * Forward declarations ******************************************************************************/ int EwfOpen(void **pp_handle, const char **pp_filename_arr, uint64_t filename_arr_len); int EwfSize(void *p_handle, uint64_t *p_size); int EwfRead(void *p_handle, uint64_t seek, unsigned char *p_buf, uint32_t count); int EwfClose(void **pp_handle); int EwfOptionsHelp(const char **pp_help); int EwfOptionsParse(void *p_handle, char *p_options, char **pp_error); int EwfGetInfofileContent(void *p_handle, const char **pp_info_buf); void EwfFreeBuffer(void *p_buf); /******************************************************************************* * LibXmount_Input API implementation ******************************************************************************/ /* * LibXmount_Input_GetApiVersion */ void LibXmount_Input_GetApiVersion(uint8_t *p_ver) { *p_ver=LIBXMOUNT_INPUT_API_VERSION; } /* * LibXmount_Input_GetSupportedFormats */ void LibXmount_Input_GetSupportedFormats(char ***ppp_arr, uint8_t *p_arr_len) { // Alloc array containing 1 element with content "ewf" *ppp_arr=(char**)malloc(sizeof(char*)); if(*ppp_arr==NULL) { *p_arr_len=0; return; } **ppp_arr=(char*)malloc(sizeof(char)*4); if(**ppp_arr==NULL) { free(*ppp_arr); *ppp_arr=NULL; *p_arr_len=0; return; } strcpy(**ppp_arr,"ewf"); *p_arr_len=1; } /* * LibXmount_Input_GetFunctions */ void LibXmount_Input_GetFunctions(ts_LibXmountInputFunctions **pp_functions) { *pp_functions= (pts_LibXmountInputFunctions)malloc(sizeof(ts_LibXmountInputFunctions)); if(*pp_functions==NULL) return; (*pp_functions)->Open=&EwfOpen; (*pp_functions)->Size=&EwfSize; (*pp_functions)->Read=&EwfRead; (*pp_functions)->Close=&EwfClose; (*pp_functions)->OptionsHelp=&EwfOptionsHelp; (*pp_functions)->OptionsParse=&EwfOptionsParse; (*pp_functions)->GetInfofileContent=&EwfGetInfofileContent; (*pp_functions)->FreeBuffer=&EwfFreeBuffer; } /******************************************************************************* * Private ******************************************************************************/ /* * EwfOpen */ int EwfOpen(void **pp_handle, const char **pp_filename_arr, uint64_t filename_arr_len) { // We need at least one file if(filename_arr_len==0) return 1; // Make sure all files are EWF files for(uint64_t i=0;i * +* xmount Copyright (c) 2008-2014 by Gillen Daniel * * * * xmount is a small tool to "fuse mount" various harddisk image formats as dd, * * vdi, vhd or vmdk files and enable virtual write access to them. * * * * This program is free software: you can redistribute it and/or modify it * * under the terms of the GNU General Public License as published by the Free * * Software Foundation, either version 3 of the License, or (at your option) * * any later version. * * * * This program is distributed in the hope that it will be useful, but WITHOUT * * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * * more details. * * * * You should have received a copy of the GNU General Public License along with * * this program. If not, see . * *******************************************************************************/ -#undef HAVE_LIBEWF_STATIC -#undef HAVE_LIBAFF_STATIC -#define WITH_LIBAEWF -#define WITH_LIBAAFF +//#include "config.h" -#include "config.h" +//#ifndef HAVE_LIBZ +// #undef WITH_LIBAEWF +//#endif -#ifdef HAVE_LIBEWF_STATIC - #define WITH_LIBEWF -#else - #ifdef HAVE_LIBEWF - #define WITH_LIBEWF - #endif -#endif - -#ifdef HAVE_LIBAFF_STATIC - #define WITH_LIBAFF -#else - #ifdef HAVE_LIBAFFLIB - #define WITH_LIBAFF - #endif -#endif - -#ifndef HAVE_LIBZ - #undef WITH_LIBAEWF -#endif +#define XMOUNT_LIBRARY_PATH "/usr/lib/xmount" #include #include #include +#include #include //#include #include #include #ifndef __APPLE__ #include #endif #include -#include #include -#ifdef HAVE_LIBEWF - #include -#endif -#ifdef HAVE_LIBEWF_STATIC - #include "libewf/include/libewf.h" -#endif -#ifdef HAVE_LIBAFFLIB - #include -#endif -#ifdef HAVE_LIBAFF_STATIC - #include "libaff/lib/afflib.h" -#endif -#include "libdd/dd.h" -#ifdef WITH_LIBAEWF - #include "libaewf/aewf.h" -#endif -#ifdef WITH_LIBAAFF - #include "libaaff/aaff.h" -#endif #include "xmount.h" #include "md5.h" +#include "../libxmount_input/libxmount_input.h" -#if ( defined( HAVE_LIBEWF ) || defined( HAVE_LIBEWF_STATIC ) ) && !defined( LIBEWF_HANDLE ) - // libewf version 2 no longer defines LIBEWF_HANDLE - #define HAVE_LIBEWF_V2_API -#endif - +/******************************************************************************* + * Global vars + ******************************************************************************/ // Struct that contains various runtime configuration options static TXMountConfData XMountConfData; -// Handles for input image types -static t_pdd hDdFile=NULL; -#ifdef WITH_LIBEWF - #if defined( HAVE_LIBEWF_V2_API ) - static libewf_handle_t *hEwfFile=NULL; - #else - static LIBEWF_HANDLE *hEwfFile=NULL; - #endif -#endif -#ifdef WITH_LIBAEWF - static t_pAewf hAewfFile=NULL; -#endif -#ifdef WITH_LIBAFF - static AFFILE *hAffFile=NULL; -#endif -#ifdef WITH_LIBAAFF - static t_pAaff hAaffFile=NULL; -#endif + +// Struct containing pointers to the libxmount_input functions +static void *p_libxmount_in=NULL +static ts_LibXmountInputFunctions libxmount_in_functions; + // Pointer to virtual info file static char *pVirtualImageInfoFile=NULL; + // Vars needed for VDI emulation static TVdiFileHeader *pVdiFileHeader=NULL; static uint32_t VdiFileHeaderSize=0; static char *pVdiBlockMap=NULL; static uint32_t VdiBlockMapSize=0; + // Vars needed for VHD emulation static TVhdFileHeader *pVhdFileHeader=NULL; + // Vars needed for VMDK emulation static char *pVirtualVmdkFile=NULL; static int VirtualVmdkFileSize=0; static char *pVirtualVmdkLockDir=NULL; static char *pVirtualVmdkLockDir2=NULL; static char *pVirtualVmdkLockFileData=NULL; static int VirtualVmdkLockFileDataSize=0; static char *pVirtualVmdkLockFileName=NULL; + // Vars needed for virtual write access static FILE *hCacheFile=NULL; static pTCacheFileHeader pCacheFileHeader=NULL; static pTCacheFileBlockIndex pCacheFileBlockIndex=NULL; + // Mutexes to control concurrent read & write access static pthread_mutex_t mutex_image_rw; static pthread_mutex_t mutex_info_read; /* * LogMessage: * Print error and debug messages to stdout * * Params: * pMessageType: "ERROR" or "DEBUG" * pCallingFunction: Name of calling function * line: Line number of call * pMessage: Message string * ...: Variable params with values to include in message string * * Returns: * n/a */ static void LogMessage(char *pMessageType, char *pCallingFunction, int line, char *pMessage, ...) { va_list VaList; // Print message "header" printf("%s: %s.%s@%u : ",pMessageType,pCallingFunction,PACKAGE_VERSION,line); // Print message with variable parameters va_start(VaList,pMessage); vprintf(pMessage,VaList); va_end(VaList); } /* * LogWarnMessage: * Print warning messages to stdout * * Params: * pMessage: Message string * ...: Variable params with values to include in message string * * Returns: * n/a */ static void LogWarnMessage(char *pMessage,...) { va_list VaList; // Print message "header" printf("WARNING: "); // Print message with variable parameters va_start(VaList,pMessage); vprintf(pMessage,VaList); va_end(VaList); } /* * PrintUsage: * Print usage instructions (cmdline options etc..) * * Params: * pProgramName: Program name (argv[0]) * * Returns: * n/a */ static void PrintUsage(char *pProgramName) { printf("\nxmount v%s copyright (c) 2008-2013 by Gillen Daniel " "\n",PACKAGE_VERSION); printf("\nUsage:\n"); printf(" %s [[fopts] [mopts]] [ [...]] \n\n",pProgramName); printf("Options:\n"); printf(" fopts:\n"); printf(" -d : Enable FUSE's and xmount's debug mode.\n"); printf(" -h : Display this help message.\n"); printf(" -s : Run single threaded.\n"); printf(" -o no_allow_other : Disable automatic addition of FUSE's allow_other option.\n"); printf(" -o : Specify fuse mount options. Will also disable automatic\n"); printf(" addition of FUSE's allow_other option!\n"); printf(" INFO: For VMDK emulation, you have to uncomment \"user_allow_other\" in\n"); printf(" /etc/fuse.conf or run xmount as root.\n"); printf(" mopts:\n"); printf(" --cache : Enable virtual write support and set cachefile to use.\n"); // printf(" --debug : Enable xmount's debug mode.\n"); printf(" --in : Input image format. can be \"dd\""); #ifdef WITH_LIBEWF printf(", \"ewf\""); #endif #ifdef WITH_LIBAEWF printf(", \"aewf\""); #endif #ifdef WITH_LIBAFF printf(", \"aff\""); #endif #ifdef WITH_LIBAAFF printf(", \"aaff\""); #endif printf(".\n"); printf(" --info : Print out some infos about used compiler and libraries.\n"); printf(" --offset : Move the output image data start bytes into the input image.\n"); printf(" --options : Specify special xmount options.\n"); printf(" --out : Output image format. can be \"dd\", \"dmg\", \"vdi\", \"vhd\", \"vmdk(s)\".\n"); printf(" --owcache : Same as --cache but overwrites existing cache.\n"); printf(" --rw : Same as --cache .\n"); printf(" --version : Same as --info.\n"); #ifndef __APPLE__ printf(" INFO: Input and output image type defaults to \"dd\" if not specified.\n"); #else printf(" INFO: Input image type defaults to \"dd\" and output image type defaults to \"dmg\" if not specified.\n"); #endif printf(" WARNING: Output image type \"vmdk(s)\" should be considered experimental!\n"); printf(" ifile:\n"); printf(" Input image file."); #if defined(WITH_LIBEWF) || defined(WITH_LIBAEWF) printf(" If you use EWF files, you have to specify all image\n"); printf(" segments! (If your shell supports it, you can use .E?? as file extension\n"); printf(" to specify them all)\n"); #else printf("\n"); #endif printf(" mntp:\n"); printf(" Mount point where virtual files should be located.\n"); } /* * CheckFuseAllowOther: * Check if FUSE allows us to pass the -o allow_other parameter. * This only works if we are root or user_allow_other is set in * /etc/fuse.conf. * * Params: * n/a * * Returns: * TRUE on success, FALSE on error */ static int CheckFuseAllowOther() { if(geteuid()!=0) { // Not running xmount as root. Try to read FUSE's config file /etc/fuse.conf FILE *hFuseConf=(FILE*)FOPEN("/etc/fuse.conf","r"); if(hFuseConf==NULL) { LogWarnMessage("FUSE will not allow other users nor root to access your " "virtual harddisk image. To change this behavior, please " "add \"user_allow_other\" to /etc/fuse.conf or execute " "xmount as root.\n"); return FALSE; } // Search conf file for set user_allow_others char line[256]; int PermSet=FALSE; while(fgets(line,sizeof(line),hFuseConf)!=NULL && PermSet!=TRUE) { // TODO: This works as long as there is no other parameter beginning with // "user_allow_other" :) if(strncmp(line,"user_allow_other",strlen("user_allow_other"))==0) { PermSet=TRUE; } } fclose(hFuseConf); if(PermSet==FALSE) { LogWarnMessage("FUSE will not allow other users nor root to access your " "virtual harddisk image. To change this behavior, please " "add \"user_allow_other\" to /etc/fuse.conf or execute " "xmount as root.\n"); return FALSE; } } // Running xmount as root or user_allow_other is set in /etc/fuse.conf return TRUE; } /* * ParseCmdLine: * Parse command line options * * Params: * argc: Number of cmdline params * argv: Array containing cmdline params * pNargv: Number of FUSE options is written to this var * pppNargv: FUSE options are written to this array * pFilenameCount: Number of input image files is written to this var * pppFilenames: Input image filenames are written to this array * ppMountpoint: Mountpoint is written to this var * * Returns: * "TRUE" on success, "FALSE" on error */ static int ParseCmdLine(const int argc, char **argv, int *pNargc, char ***pppNargv, int *pFilenameCount, char ***pppFilenames, char **ppMountpoint) { int i=1,files=0,opts=0,FuseMinusOControl=TRUE,FuseAllowOther=TRUE; // add argv[0] to pppNargv opts++; XMOUNT_MALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-1],argv[0]) // Parse options while(i1 && *(argv[i]+1)!='-') { // Options beginning with - are mostly FUSE specific if(strcmp(argv[i],"-d")==0) { // Enable FUSE's and xmount's debug mode opts++; XMOUNT_REALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-1],argv[i]) XMountConfData.Debug=TRUE; } else if(strcmp(argv[i],"-h")==0) { // Print help message PrintUsage(argv[0]); exit(1); } else if(strcmp(argv[i],"-o")==0) { // Next parameter specifies fuse / lib mount options if((argc+1)>i) { i++; // As the user specified the -o option, we assume he knows what he is // doing. We won't append allow_other automatically. And we allow him // to disable allow_other by passing a single "-o no_allow_other" // which won't be passed to FUSE as it is xmount specific. if(strcmp(argv[i],"no_allow_other")!=0) { opts+=2; XMOUNT_REALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-2],argv[i-1]) XMOUNT_STRSET((*pppNargv)[opts-1],argv[i]) FuseMinusOControl=FALSE; } else FuseAllowOther=FALSE; } else { LOG_ERROR("Couldn't parse mount options!\n") PrintUsage(argv[0]); exit(1); } } else if(strcmp(argv[i],"-s")==0) { // Enable FUSE's single threaded mode opts++; XMOUNT_REALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-1],argv[i]) } else if(strcmp(argv[i],"-V")==0) { // Display FUSE version info opts++; XMOUNT_REALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-1],argv[i]) } else { LOG_ERROR("Unknown command line option \"%s\"\n",argv[i]); PrintUsage(argv[0]); exit(1); } } else { // Options beginning with -- are xmount specific if(strcmp(argv[i],"--cache")==0 || strcmp(argv[i],"--rw")==0) { // Emulate writable access to mounted image // Next parameter must be cache file to read/write changes from/to if((argc+1)>i) { i++; XMOUNT_STRSET(XMountConfData.pCacheFile,argv[i]) XMountConfData.Writable=TRUE; } else { LOG_ERROR("You must specify a cache file to read/write data from/to!\n") PrintUsage(argv[0]); exit(1); } LOG_DEBUG("Enabling virtual write support using cache file \"%s\"\n", XMountConfData.pCacheFile) } else if(strcmp(argv[i],"--in")==0) { // Specify input image type // Next parameter must be image type if((argc+1)>i) { i++; if(strcmp(argv[i],"dd")==0) { XMountConfData.OrigImageType=TOrigImageType_DD; LOG_DEBUG("Setting input image type to DD\n") #ifdef WITH_LIBEWF } else if(strcmp(argv[i],"ewf")==0) { XMountConfData.OrigImageType=TOrigImageType_EWF; LOG_DEBUG("Setting input image type to EWF\n") #endif #ifdef WITH_LIBAEWF } else if(strcmp(argv[i],"aewf")==0) { XMountConfData.OrigImageType=TOrigImageType_AEWF; LOG_DEBUG("Setting input image type to AEWF\n") #endif #ifdef WITH_LIBAFF } else if(strcmp(argv[i],"aff")==0) { XMountConfData.OrigImageType=TOrigImageType_AFF; LOG_DEBUG("Setting input image type to AFF\n") #endif #ifdef WITH_LIBAAFF } else if(strcmp(argv[i],"aaff")==0) { XMountConfData.OrigImageType=TOrigImageType_AAFF; LOG_DEBUG("Setting input image type to AAFF\n") #endif } else { LOG_ERROR("Unknown input image type \"%s\"!\n",argv[i]) PrintUsage(argv[0]); exit(1); } } else { LOG_ERROR("You must specify an input image type!\n"); PrintUsage(argv[0]); exit(1); } } else if(strcmp(argv[i],"--options")==0) { if((argc+1)>i) { i++; XMOUNT_STRSET(XMountConfData.p_lib_params,argv[i]); } else { LOG_ERROR("You must specify special options!\n"); PrintUsage(argv[0]); exit(1); } } else if(strcmp(argv[i],"--out")==0) { // Specify output image type // Next parameter must be image type if((argc+1)>i) { i++; if(strcmp(argv[i],"dd")==0) { XMountConfData.VirtImageType=TVirtImageType_DD; LOG_DEBUG("Setting virtual image type to DD\n") } else if(strcmp(argv[i],"dmg")==0) { XMountConfData.VirtImageType=TVirtImageType_DMG; LOG_DEBUG("Setting virtual image type to DMG\n") } else if(strcmp(argv[i],"vdi")==0) { XMountConfData.VirtImageType=TVirtImageType_VDI; LOG_DEBUG("Setting virtual image type to VDI\n") } else if(strcmp(argv[i],"vhd")==0) { XMountConfData.VirtImageType=TVirtImageType_VHD; LOG_DEBUG("Setting virtual image type to VHD\n") } else if(strcmp(argv[i],"vmdk")==0) { XMountConfData.VirtImageType=TVirtImageType_VMDK; LOG_DEBUG("Setting virtual image type to VMDK\n") } else if(strcmp(argv[i],"vmdks")==0) { XMountConfData.VirtImageType=TVirtImageType_VMDKS; LOG_DEBUG("Setting virtual image type to VMDKS\n") } else { LOG_ERROR("Unknown output image type \"%s\"!\n",argv[i]) PrintUsage(argv[0]); exit(1); } } else { LOG_ERROR("You must specify an output image type!\n"); PrintUsage(argv[0]); exit(1); } } else if(strcmp(argv[i],"--owcache")==0) { // Enable writable access to mounted image and overwrite existing cache // Next parameter must be cache file to read/write changes from/to if((argc+1)>i) { i++; XMOUNT_STRSET(XMountConfData.pCacheFile,argv[i]) XMountConfData.Writable=TRUE; XMountConfData.OverwriteCache=TRUE; } else { LOG_ERROR("You must specify a cache file to read/write data from/to!\n") PrintUsage(argv[0]); exit(1); } LOG_DEBUG("Enabling virtual write support overwriting cache file \"%s\"\n", XMountConfData.pCacheFile) } else if(strcmp(argv[i],"--version")==0 || strcmp(argv[i],"--info")==0) { printf("xmount v%s copyright (c) 2008-2013 by Gillen Daniel " "\n\n",PACKAGE_VERSION); #ifdef __GNUC__ printf(" compile timestamp: %s %s\n",__DATE__,__TIME__); printf(" gcc version: %s\n",__VERSION__); #endif #if defined(WITH_LIBEWF) || defined(WITH_LIBAEWF) printf(" EWF support: YES"); #ifdef WITH_LIBEWF printf(" (libewf v%s)",LIBEWF_VERSION_STRING); #endif #ifdef WITH_LIBAEWF printf(" (internal)"); #endif printf("\n"); #else printf(" EWF support: NO\n"); #endif #if defined(WITH_LIBAFF) || defined(WITH_LIBAAFF) printf(" AFF support: YES "); #ifdef WITH_LIBAFF printf("(libaff v%s)",af_version()); #endif #ifdef WITH_LIBAAFF printf("(internal) "); #endif printf("\n"); #else printf(" AFF support: NO\n"); #endif printf("\n"); exit(0); } else if(strcmp(argv[i],"--offset")==0) { if((argc+1)>i) { i++; XMountConfData.orig_img_offset=strtoull(argv[i],NULL,10); } else { LOG_ERROR("You must specify an offset!\n") PrintUsage(argv[0]); exit(1); } LOG_DEBUG("Setting input image offset to \"%" PRIu64 "\"\n", XMountConfData.orig_img_offset) } else { LOG_ERROR("Unknown command line option \"%s\"\n",argv[i]); PrintUsage(argv[0]); exit(1); } } i++; } // Parse input image filename(s) while(i<(argc-1)) { files++; XMOUNT_REALLOC(*pppFilenames,char**,files*sizeof(char*)) XMOUNT_STRSET((*pppFilenames)[files-1],argv[i]) i++; } if(files==0) { LOG_ERROR("No input files specified!\n") PrintUsage(argv[0]); exit(1); } *pFilenameCount=files; // Extract mountpoint if(i==(argc-1)) { XMOUNT_STRSET(*ppMountpoint,argv[argc-1]) opts++; XMOUNT_REALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-1],*ppMountpoint) } else { LOG_ERROR("No mountpoint specified!\n") PrintUsage(argv[0]); exit(1); } if(FuseMinusOControl==TRUE) { // We control the -o flag, set subtype, fsname and allow_other options opts+=2; XMOUNT_REALLOC(*pppNargv,char**,opts*sizeof(char*)) XMOUNT_STRSET((*pppNargv)[opts-2],"-o") XMOUNT_STRSET((*pppNargv)[opts-1],"subtype=xmount,fsname=") XMOUNT_STRAPP((*pppNargv)[opts-1],(*pppFilenames)[0]) if(FuseAllowOther==TRUE) { // Try to add "allow_other" to FUSE's cmd-line params if(CheckFuseAllowOther()==TRUE) { XMOUNT_STRAPP((*pppNargv)[opts-1],",allow_other") } } } *pNargc=opts; return TRUE; } /* * ExtractVirtFileNames: * Extract virtual file name from input image name * * Params: * pOrigName: Name of input image (Can include a path) * * Returns: * "TRUE" on success, "FALSE" on error */ static int ExtractVirtFileNames(char *pOrigName) { char *tmp; // Truncate any leading path tmp=strrchr(pOrigName,'/'); if(tmp!=NULL) pOrigName=tmp+1; // Extract file extension tmp=strrchr(pOrigName,'.'); // Set leading '/' XMOUNT_STRSET(XMountConfData.pVirtualImagePath,"/") XMOUNT_STRSET(XMountConfData.pVirtualImageInfoPath,"/") if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { XMOUNT_STRSET(XMountConfData.pVirtualVmdkPath,"/") } // Copy filename if(tmp==NULL) { // Input image filename has no extension XMOUNT_STRAPP(XMountConfData.pVirtualImagePath,pOrigName) XMOUNT_STRAPP(XMountConfData.pVirtualImageInfoPath,pOrigName) if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { XMOUNT_STRAPP(XMountConfData.pVirtualVmdkPath,pOrigName) } XMOUNT_STRAPP(XMountConfData.pVirtualImageInfoPath,".info") } else { XMOUNT_STRNAPP(XMountConfData.pVirtualImagePath,pOrigName, strlen(pOrigName)-strlen(tmp)) XMOUNT_STRNAPP(XMountConfData.pVirtualImageInfoPath,pOrigName, strlen(pOrigName)-strlen(tmp)) if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { XMOUNT_STRNAPP(XMountConfData.pVirtualVmdkPath,pOrigName, strlen(pOrigName)-strlen(tmp)) } XMOUNT_STRAPP(XMountConfData.pVirtualImageInfoPath,".info") } // Add virtual file extensions switch(XMountConfData.VirtImageType) { case TVirtImageType_DD: XMOUNT_STRAPP(XMountConfData.pVirtualImagePath,".dd") break; case TVirtImageType_DMG: XMOUNT_STRAPP(XMountConfData.pVirtualImagePath,".dmg") break; case TVirtImageType_VDI: XMOUNT_STRAPP(XMountConfData.pVirtualImagePath,".vdi") break; case TVirtImageType_VHD: XMOUNT_STRAPP(XMountConfData.pVirtualImagePath,".vhd") break; case TVirtImageType_VMDK: case TVirtImageType_VMDKS: XMOUNT_STRAPP(XMountConfData.pVirtualImagePath,".dd") XMOUNT_STRAPP(XMountConfData.pVirtualVmdkPath,".vmdk") break; default: LOG_ERROR("Unknown virtual image type!\n") return FALSE; } LOG_DEBUG("Set virtual image name to \"%s\"\n", XMountConfData.pVirtualImagePath) LOG_DEBUG("Set virtual image info name to \"%s\"\n", XMountConfData.pVirtualImageInfoPath) if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { LOG_DEBUG("Set virtual vmdk name to \"%s\"\n", XMountConfData.pVirtualVmdkPath) } return TRUE; } /* * GetOrigImageSize: * Get size of original image * * Params: * p_size: Pointer to an uint64_t to which the size will be written to * * Returns: * "TRUE" on success, "FALSE" on error */ static int GetOrigImageSize(uint64_t *p_size) { // Make sure to return correct values when dealing with only 32bit file sizes *p_size=0; int rc; // When size was already queryed, use old value rather than regetting value // from disk if(XMountConfData.OrigImageSize!=0) { *p_size=XMountConfData.OrigImageSize; return TRUE; } // Now get size of original image switch(XMountConfData.OrigImageType) { case TOrigImageType_DD: if((rc=ddSize(hDdFile,(long long unsigned int*)p_size))!=DD_OK) { LOG_ERROR("Unable to determine DD size using ddSize. Error code %d!\n",rc); return FALSE; } /* // Original image is a DD file. Seek to end to get size. if(fseeko(hDdFile,0,SEEK_END)!=0) { LOG_ERROR("Couldn't seek to end of image file!\n") return FALSE; } *p_size=ftello(hDdFile); */ break; #ifdef WITH_LIBEWF case TOrigImageType_EWF: // Original image is an EWF file. Just query media size. #if defined( HAVE_LIBEWF_V2_API ) if(libewf_handle_get_media_size(hEwfFile,p_size,NULL)!=1) #else if(libewf_get_media_size(hEwfFile,p_size)!=1) #endif { LOG_ERROR("Couldn't get ewf media size!\n") return FALSE; } break; #endif #ifdef WITH_LIBAEWF case TOrigImageType_AEWF: if((rc=AewfSize(hAewfFile,(long long unsigned int*)p_size))!=AEWF_OK) { LOG_ERROR("Couldn't get ewf media size. Error code %d!\n",rc); return FALSE; } break; #endif #ifdef WITH_LIBAFF case TOrigImageType_AFF: *p_size=af_seek(hAffFile,0,SEEK_END); break; #endif #ifdef WITH_LIBAAFF case TOrigImageType_AAFF: if((rc=AaffSize(hAaffFile,(long long unsigned int*)p_size))!=AAFF_OK) { LOG_ERROR("Unable to determine AFF size using AaffSize. Error code %d!\n",rc); return FALSE; } break; #endif default: LOG_ERROR("Unsupported image type!\n") return FALSE; } // Save size so we have not to reget it from disk next time XMountConfData.OrigImageSize=*p_size; return TRUE; } /* * GetVirtImageSize: * Get size of the emulated image * * Params: * size: Pointer to an uint64_t to which the size will be written to * * Returns: * "TRUE" on success, "FALSE" on error */ static int GetVirtImageSize(uint64_t *size) { if(XMountConfData.VirtImageSize!=0) { *size=XMountConfData.VirtImageSize; return TRUE; } switch(XMountConfData.VirtImageType) { case TVirtImageType_DD: case TVirtImageType_DMG: case TVirtImageType_VMDK: case TVirtImageType_VMDKS: // Virtual image is a DD, DMG or VMDK file. Just return the size of the // original image if(!GetOrigImageSize(size)) { LOG_ERROR("Couldn't get size of input image!\n") return FALSE; } break; case TVirtImageType_VDI: // Virtual image is a VDI file. Get size of original image and add size // of VDI header etc. if(!GetOrigImageSize(size)) { LOG_ERROR("Couldn't get size of input image!\n") return FALSE; } (*size)+=(sizeof(TVdiFileHeader)+VdiBlockMapSize); break; case TVirtImageType_VHD: // Virtual image is a VHD file. Get size of original image and add size // of VHD footer. if(!GetOrigImageSize(size)) { LOG_ERROR("Couldn't get size of input image!\n") return FALSE; } (*size)+=sizeof(TVhdFileHeader); break; default: LOG_ERROR("Unsupported image type!\n") return FALSE; } XMountConfData.VirtImageSize=*size; return TRUE; } /* * GetOrigImageData: * Read data from original image * * Params: * buf: Pointer to buffer to write read data to (Must be preallocated!) * offset: Offset at which data should be read * size: Size of data which should be read (Size of buffer) * * Returns: * Number of read bytes on success or "-1" on error */ static int GetOrigImageData(char *buf, off_t offset, size_t size) { size_t ToRead=0; uint64_t ImageSize=0; int rc; // Make sure we aren't reading past EOF of image file if(!GetOrigImageSize(&ImageSize)) { LOG_ERROR("Couldn't get image size!\n") return -1; } if(offset>=ImageSize) { // Offset is beyond image size LOG_DEBUG("Offset is beyond image size.\n") return 0; } if(offset+size>ImageSize) { // Attempt to read data past EOF of image file ToRead=ImageSize-offset; LOG_DEBUG("Attempt to read data past EOF. Corrected size from %zd" " to %zd.\n",size,ToRead) } else ToRead=size; // Now read data from image file switch(XMountConfData.OrigImageType) { case TOrigImageType_DD: // Original image is a DD file. Read ToRead bytes. if((rc=ddRead(hDdFile,offset,buf,ToRead))!=DD_OK) { LOG_ERROR("Couldn't read %zd bytes from offset %" PRIu64 " using ddRead. Error code %d!\n",ToRead,offset,rc); return -1; } /* // Original image is a DD file. Seek to offset and read ToRead bytes. // TODO: Perhaps check whether it is cheaper to seek from current position // to offset than seeking from beginning of the file if(fseeko(hDdFile,offset,SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to offset %" PRIu64 "!\n",offset) return -1; } if(fread(buf,ToRead,1,hDdFile)!=1) { LOG_ERROR("Couldn't read %zd bytes from offset %" PRIu64 "!\n",ToRead,offset) return -1; } */ LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from DD file\n", ToRead,offset); break; #ifdef WITH_LIBEWF case TOrigImageType_EWF: // Original image is an EWF file. Seek to offset and read ToRead bytes. #if defined( HAVE_LIBEWF_V2_API ) if(libewf_handle_seek_offset(hEwfFile,offset,SEEK_SET,NULL)!=-1) { if(libewf_handle_read_buffer(hEwfFile,buf,ToRead,NULL)!=ToRead) { #else if(libewf_seek_offset(hEwfFile,offset)!=-1) { if(libewf_read_buffer(hEwfFile,buf,ToRead)!=ToRead) { #endif LOG_ERROR("Couldn't read %zd bytes from offset %" PRIu64 "!\n",ToRead,offset); return -1; } } else { LOG_ERROR("Couldn't seek to offset %" PRIu64 "!\n",offset); return -1; } LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from EWF file\n", ToRead,offset); break; #endif #ifdef WITH_LIBAEWF case TOrigImageType_AEWF: if((rc=AewfRead(hAewfFile,offset,buf,ToRead))!=AEWF_OK) { LOG_ERROR("Couldn't read %zd bytes from offset %" PRIu64 " using AewfRead. Error code %d!\n",ToRead,offset,rc); return -1; } LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from EWF file\n", ToRead,offset); break; #endif #ifdef WITH_LIBAFF case TOrigImageType_AFF: af_seek(hAffFile,offset,SEEK_SET); if(af_read(hAffFile,buf,ToRead)!=ToRead) { LOG_ERROR("Couldn't read %zd bytes from offset %" PRIu64 "!\n",ToRead,offset); return -1; } LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from AFF file\n", ToRead,offset); break; #endif #ifdef WITH_LIBAAFF case TOrigImageType_AAFF: if((rc=AaffRead(hAaffFile,offset,buf,ToRead))!=AAFF_OK) { LOG_ERROR("Couldn't read %zd bytes from offset %" PRIu64 " using AaffRead. Error code %d!\n",ToRead,offset,rc); return -1; } LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from AFF file\n", ToRead,offset); break; #endif default: LOG_ERROR("Unsupported image type!\n"); return -1; } return ToRead; } /* * GetVirtVmdkData: * Read data from virtual VMDK file * * Params: * buf: Pointer to buffer to write read data to (Must be preallocated!) * offset: Offset at which data should be read * size: Size of data which should be read (Size of buffer) * * Returns: * Number of read bytes on success or "-1" on error */ /* static int GetVirtualVmdkData(char *buf, off_t offset, size_t size) { uint32_t len; len=strlen(pVirtualVmdkFile); if(offsetlen) { size=len-offset; LOG_DEBUG("Attempt to read past EOF of virtual vmdk file\n") } if(XMountConfData.Writable==TRUE && pCacheFileHeader->VmdkFileCached==TRUE) { // VMDK file is cached. Read data from cache file // TODO: Read data from cache file } else { // No write support or VMDK file not cached. memcpy(buf,pVirtualVmdkFile+offset,size); LOG_DEBUG("Read %" PRIu64 " bytes at offset %" PRIu64 " from virtual vmdk file\n",size,offset) } } else { LOG_DEBUG("Attempt to read past EOF of virtual vmdk file\n"); return -1; } return size; } */ /* * GetVirtImageData: * Read data from virtual image * * Params: * buf: Pointer to buffer to write read data to (Must be preallocated!) * offset: Offset at which data should be read * size: Size of data which should be read (Size of buffer) * * Returns: * Number of read bytes on success or "-1" on error */ static int GetVirtImageData(char *buf, off_t offset, size_t size) { uint32_t CurBlock=0; uint64_t VirtImageSize; uint64_t orig_image_size; size_t ToRead=0; size_t CurToRead=0; off_t FileOff=offset; off_t BlockOff=0; size_t to_read_later=0; // Get virtual image size if(!GetVirtImageSize(&VirtImageSize)) { LOG_ERROR("Couldn't get virtual image size!\n") return -1; } if(offset>=VirtImageSize) { LOG_ERROR("Attempt to read beyond virtual image EOF!\n") return -1; } if(offset+size>VirtImageSize) { LOG_DEBUG("Attempt to read pas EOF of virtual image file\n") size=VirtImageSize-offset; } ToRead=size; if(!GetOrigImageSize(&orig_image_size)) { LOG_ERROR("Couldn't get original image size!") return 0; } // Read virtual image type specific data preceeding original image data switch(XMountConfData.VirtImageType) { case TVirtImageType_DD: case TVirtImageType_DMG: case TVirtImageType_VMDK: case TVirtImageType_VMDKS: break; case TVirtImageType_VDI: if(FileOffVdiFileHeaderSize) CurToRead=VdiFileHeaderSize-FileOff; else CurToRead=ToRead; if(XMountConfData.Writable==TRUE && pCacheFileHeader->VdiFileHeaderCached==TRUE) { // VDI header was already cached if(fseeko(hCacheFile, pCacheFileHeader->pVdiFileHeader+FileOff, SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to cached VDI header at offset %" PRIu64 "\n",pCacheFileHeader->pVdiFileHeader+FileOff) return 0; } if(fread(buf,CurToRead,1,hCacheFile)!=1) { LOG_ERROR("Couldn't read %zu bytes from cache file at offset %" PRIu64 "\n",CurToRead, pCacheFileHeader->pVdiFileHeader+FileOff) return 0; } LOG_DEBUG("Read %zd bytes from cached VDI header at offset %" PRIu64 " at cache file offset %" PRIu64 "\n", CurToRead,FileOff, pCacheFileHeader->pVdiFileHeader+FileOff) } else { // VDI header isn't cached memcpy(buf,((char*)pVdiFileHeader)+FileOff,CurToRead); LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from virtual VDI header\n",CurToRead, FileOff) } if(ToRead==CurToRead) return ToRead; else { // Adjust values to read from original image ToRead-=CurToRead; buf+=CurToRead; FileOff=0; } } else FileOff-=VdiFileHeaderSize; break; case TVirtImageType_VHD: // When emulating VHD, make sure the while loop below only reads data // available in the original image. Any VHD footer data must be read // afterwards. if(FileOff>=orig_image_size) { to_read_later=ToRead; ToRead=0; } else if((FileOff+ToRead)>orig_image_size) { to_read_later=(FileOff+ToRead)-orig_image_size; ToRead-=to_read_later; } break; } // Calculate block to read data from CurBlock=FileOff/CACHE_BLOCK_SIZE; BlockOff=FileOff%CACHE_BLOCK_SIZE; // Read image data while(ToRead!=0) { // Calculate how many bytes we have to read from this block if(BlockOff+ToRead>CACHE_BLOCK_SIZE) { CurToRead=CACHE_BLOCK_SIZE-BlockOff; } else CurToRead=ToRead; if(XMountConfData.Writable==TRUE && pCacheFileBlockIndex[CurBlock].Assigned==TRUE) { // Write support enabled and need to read altered data from cachefile if(fseeko(hCacheFile, pCacheFileBlockIndex[CurBlock].off_data+BlockOff, SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to offset %" PRIu64 " in cache file\n") return -1; } if(fread(buf,CurToRead,1,hCacheFile)!=1) { LOG_ERROR("Couldn't read data from cache file!\n") return -1; } LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from cache file\n",CurToRead,FileOff) } else { // No write support or data not cached if(GetOrigImageData(buf, FileOff, CurToRead)!=CurToRead) { LOG_ERROR("Couldn't read data from input image!\n") return -1; } LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from original image file\n",CurToRead, FileOff) } CurBlock++; BlockOff=0; buf+=CurToRead; ToRead-=CurToRead; FileOff+=CurToRead; } if(to_read_later!=0) { // Read virtual image type specific data following original image data switch(XMountConfData.VirtImageType) { case TVirtImageType_DD: case TVirtImageType_DMG: case TVirtImageType_VMDK: case TVirtImageType_VMDKS: case TVirtImageType_VDI: break; case TVirtImageType_VHD: // Micro$oft has choosen to use a footer rather then a header. if(XMountConfData.Writable==TRUE && pCacheFileHeader->VhdFileHeaderCached==TRUE) { // VHD footer was already cached if(fseeko(hCacheFile, pCacheFileHeader->pVhdFileHeader+(FileOff-orig_image_size), SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to cached VHD footer at offset %" PRIu64 "\n", pCacheFileHeader->pVhdFileHeader+ (FileOff-orig_image_size)) return 0; } if(fread(buf,to_read_later,1,hCacheFile)!=1) { LOG_ERROR("Couldn't read %zu bytes from cache file at offset %" PRIu64 "\n",to_read_later, pCacheFileHeader->pVhdFileHeader+ (FileOff-orig_image_size)) return 0; } LOG_DEBUG("Read %zd bytes from cached VHD footer at offset %" PRIu64 " at cache file offset %" PRIu64 "\n", to_read_later,(FileOff-orig_image_size), pCacheFileHeader->pVhdFileHeader+(FileOff-orig_image_size)) } else { // VHD header isn't cached memcpy(buf, ((char*)pVhdFileHeader)+(FileOff-orig_image_size), to_read_later); LOG_DEBUG("Read %zd bytes at offset %" PRIu64 " from virtual VHD header\n", to_read_later, (FileOff-orig_image_size)) } break; } } return size; } /* * SetVdiFileHeaderData: * Write data to virtual VDI file header * * Params: * buf: Buffer containing data to write * offset: Offset of changes * size: Amount of bytes to write * * Returns: * Number of written bytes on success or "-1" on error */ static int SetVdiFileHeaderData(char *buf,off_t offset,size_t size) { if(offset+size>VdiFileHeaderSize) size=VdiFileHeaderSize-offset; LOG_DEBUG("Need to cache %zu bytes at offset %" PRIu64 " from VDI header\n",size,offset) if(pCacheFileHeader->VdiFileHeaderCached==1) { // Header was already cached if(fseeko(hCacheFile, pCacheFileHeader->pVdiFileHeader+offset, SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to cached VDI header at address %" PRIu64 "\n",pCacheFileHeader->pVdiFileHeader+offset) return -1; } if(fwrite(buf,size,1,hCacheFile)!=1) { LOG_ERROR("Couldn't write %zu bytes to cache file at offset %" PRIu64 "\n",size, pCacheFileHeader->pVdiFileHeader+offset) return -1; } LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n", size,pCacheFileHeader->pVdiFileHeader+offset) } else { // Header wasn't already cached. if(fseeko(hCacheFile, 0, SEEK_END)!=0) { LOG_ERROR("Couldn't seek to end of cache file!") return -1; } pCacheFileHeader->pVdiFileHeader=ftello(hCacheFile); LOG_DEBUG("Caching whole VDI header\n") if(offset>0) { // Changes do not begin at offset 0, need to prepend with data from // VDI header if(fwrite((char*)pVdiFileHeader,offset,1,hCacheFile)!=1) { LOG_ERROR("Error while writing %" PRIu64 " bytes " "to cache file at offset %" PRIu64 "!\n", offset, pCacheFileHeader->pVdiFileHeader); return -1; } LOG_DEBUG("Prepended changed data with %" PRIu64 " bytes at cache file offset %" PRIu64 "\n", offset,pCacheFileHeader->pVdiFileHeader) } // Cache changed data if(fwrite(buf,size,1,hCacheFile)!=1) { LOG_ERROR("Couldn't write %zu bytes to cache file at offset %" PRIu64 "\n",size, pCacheFileHeader->pVdiFileHeader+offset) return -1; } LOG_DEBUG("Wrote %zu bytes of changed data to cache file offset %" PRIu64 "\n",size, pCacheFileHeader->pVdiFileHeader+offset) if(offset+size!=VdiFileHeaderSize) { // Need to append data from VDI header to cache whole data struct if(fwrite(((char*)pVdiFileHeader)+offset+size, VdiFileHeaderSize-(offset+size), 1, hCacheFile)!=1) { LOG_ERROR("Couldn't write %zu bytes to cache file at offset %" PRIu64 "\n",VdiFileHeaderSize-(offset+size), (uint64_t)(pCacheFileHeader->pVdiFileHeader+offset+size)) return -1; } LOG_DEBUG("Appended %" PRIu32 " bytes to changed data at cache file offset %" PRIu64 "\n",VdiFileHeaderSize-(offset+size), pCacheFileHeader->pVdiFileHeader+offset+size) } // Mark header as cached and update header in cache file pCacheFileHeader->VdiFileHeaderCached=1; if(fseeko(hCacheFile,0,SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to offset 0 of cache file!\n") return -1; } if(fwrite((char*)pCacheFileHeader,sizeof(TCacheFileHeader),1,hCacheFile)!=1) { LOG_ERROR("Couldn't write changed cache file header!\n") return -1; } } // All important data has been written, now flush all buffers to make // sure data is written to cache file fflush(hCacheFile); #ifndef __APPLE__ ioctl(fileno(hCacheFile),BLKFLSBUF,0); #endif return size; } /* * SetVhdFileHeaderData: * Write data to virtual VHD file footer * * Params: * buf: Buffer containing data to write * offset: Offset of changes * size: Amount of bytes to write * * Returns: * Number of written bytes on success or "-1" on error */ static int SetVhdFileHeaderData(char *buf,off_t offset,size_t size) { LOG_DEBUG("Need to cache %zu bytes at offset %" PRIu64 " from VHD footer\n",size,offset) if(pCacheFileHeader->VhdFileHeaderCached==1) { // Header has already been cached if(fseeko(hCacheFile, pCacheFileHeader->pVhdFileHeader+offset, SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to cached VHD header at address %" PRIu64 "\n",pCacheFileHeader->pVhdFileHeader+offset) return -1; } if(fwrite(buf,size,1,hCacheFile)!=1) { LOG_ERROR("Couldn't write %zu bytes to cache file at offset %" PRIu64 "\n",size, pCacheFileHeader->pVhdFileHeader+offset) return -1; } LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n", size,pCacheFileHeader->pVhdFileHeader+offset) } else { // Header hasn't been cached yet. if(fseeko(hCacheFile, 0, SEEK_END)!=0) { LOG_ERROR("Couldn't seek to end of cache file!") return -1; } pCacheFileHeader->pVhdFileHeader=ftello(hCacheFile); LOG_DEBUG("Caching whole VHD header\n") if(offset>0) { // Changes do not begin at offset 0, need to prepend with data from // VHD header if(fwrite((char*)pVhdFileHeader,offset,1,hCacheFile)!=1) { LOG_ERROR("Error while writing %" PRIu64 " bytes " "to cache file at offset %" PRIu64 "!\n", offset, pCacheFileHeader->pVhdFileHeader); return -1; } LOG_DEBUG("Prepended changed data with %" PRIu64 " bytes at cache file offset %" PRIu64 "\n", offset,pCacheFileHeader->pVhdFileHeader) } // Cache changed data if(fwrite(buf,size,1,hCacheFile)!=1) { LOG_ERROR("Couldn't write %zu bytes to cache file at offset %" PRIu64 "\n",size, pCacheFileHeader->pVhdFileHeader+offset) return -1; } LOG_DEBUG("Wrote %zu bytes of changed data to cache file offset %" PRIu64 "\n",size, pCacheFileHeader->pVhdFileHeader+offset) if(offset+size!=sizeof(TVhdFileHeader)) { // Need to append data from VHD header to cache whole data struct if(fwrite(((char*)pVhdFileHeader)+offset+size, sizeof(TVhdFileHeader)-(offset+size), 1, hCacheFile)!=1) { LOG_ERROR("Couldn't write %zu bytes to cache file at offset %" PRIu64 "\n",sizeof(TVhdFileHeader)-(offset+size), (uint64_t)(pCacheFileHeader->pVhdFileHeader+offset+size)) return -1; } LOG_DEBUG("Appended %" PRIu32 " bytes to changed data at cache file offset %" PRIu64 "\n",sizeof(TVhdFileHeader)-(offset+size), pCacheFileHeader->pVhdFileHeader+offset+size) } // Mark header as cached and update header in cache file pCacheFileHeader->VhdFileHeaderCached=1; if(fseeko(hCacheFile,0,SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to offset 0 of cache file!\n") return -1; } if(fwrite((char*)pCacheFileHeader,sizeof(TCacheFileHeader),1,hCacheFile)!=1) { LOG_ERROR("Couldn't write changed cache file header!\n") return -1; } } // All important data has been written, now flush all buffers to make // sure data is written to cache file fflush(hCacheFile); #ifndef __APPLE__ ioctl(fileno(hCacheFile),BLKFLSBUF,0); #endif return size; } /* * SetVirtImageData: * Write data to virtual image * * Params: * buf: Buffer containing data to write * offset: Offset to start writing at * size: Size of data to be written * * Returns: * Number of written bytes on success or "-1" on error */ static int SetVirtImageData(const char *buf, off_t offset, size_t size) { uint64_t CurBlock=0; uint64_t VirtImageSize; uint64_t OrigImageSize; size_t ToWrite=0; size_t to_write_later=0; size_t CurToWrite=0; off_t FileOff=offset; off_t BlockOff=0; char *WriteBuf=(char*)buf; char *buf2; ssize_t ret; // Get virtual image size if(!GetVirtImageSize(&VirtImageSize)) { LOG_ERROR("Couldn't get virtual image size!\n") return -1; } if(offset>=VirtImageSize) { LOG_ERROR("Attempt to write beyond EOF of virtual image file!\n") return -1; } if(offset+size>VirtImageSize) { LOG_DEBUG("Attempt to write past EOF of virtual image file\n") size=VirtImageSize-offset; } ToWrite=size; // Get original image size if(!GetOrigImageSize(&OrigImageSize)) { LOG_ERROR("Couldn't get original image size!\n") return -1; } // Cache virtual image type specific data preceeding original image data switch(XMountConfData.VirtImageType) { case TVirtImageType_DD: case TVirtImageType_DMG: case TVirtImageType_VMDK: case TVirtImageType_VMDKS: break; case TVirtImageType_VDI: if(FileOff=OrigImageSize) { to_write_later=ToWrite; ToWrite=0; } else if((FileOff+ToWrite)>OrigImageSize) { to_write_later=(FileOff+ToWrite)-OrigImageSize; ToWrite-=to_write_later; } break; } // Calculate block to write data to CurBlock=FileOff/CACHE_BLOCK_SIZE; BlockOff=FileOff%CACHE_BLOCK_SIZE; while(ToWrite!=0) { // Calculate how many bytes we have to write to this block if(BlockOff+ToWrite>CACHE_BLOCK_SIZE) { CurToWrite=CACHE_BLOCK_SIZE-BlockOff; } else CurToWrite=ToWrite; if(pCacheFileBlockIndex[CurBlock].Assigned==1) { // Block was already cached // Seek to data offset in cache file if(fseeko(hCacheFile, pCacheFileBlockIndex[CurBlock].off_data+BlockOff, SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to cached block at address %" PRIu64 "\n", pCacheFileBlockIndex[CurBlock].off_data+BlockOff) return -1; } if(fwrite(WriteBuf,CurToWrite,1,hCacheFile)!=1) { LOG_ERROR("Error while writing %zu bytes " "to cache file at offset %" PRIu64 "!\n", CurToWrite, pCacheFileBlockIndex[CurBlock].off_data+BlockOff); return -1; } LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n",CurToWrite, pCacheFileBlockIndex[CurBlock].off_data+BlockOff) } else { // Uncached block. Need to cache entire new block // Seek to end of cache file to append new cache block fseeko(hCacheFile,0,SEEK_END); pCacheFileBlockIndex[CurBlock].off_data=ftello(hCacheFile); if(BlockOff!=0) { // Changed data does not begin at block boundry. Need to prepend // with data from virtual image file XMOUNT_MALLOC(buf2,char*,BlockOff*sizeof(char)) if(GetOrigImageData(buf2,FileOff-BlockOff,BlockOff)!=BlockOff) { LOG_ERROR("Couldn't read data from original image file!\n") return -1; } if(fwrite(buf2,BlockOff,1,hCacheFile)!=1) { LOG_ERROR("Couldn't writing %" PRIu64 " bytes " "to cache file at offset %" PRIu64 "!\n", BlockOff, pCacheFileBlockIndex[CurBlock].off_data); return -1; } LOG_DEBUG("Prepended changed data with %" PRIu64 " bytes from virtual image file at offset %" PRIu64 "\n",BlockOff,FileOff-BlockOff) free(buf2); } if(fwrite(WriteBuf,CurToWrite,1,hCacheFile)!=1) { LOG_ERROR("Error while writing %zd bytes " "to cache file at offset %" PRIu64 "!\n", CurToWrite, pCacheFileBlockIndex[CurBlock].off_data+BlockOff); return -1; } if(BlockOff+CurToWrite!=CACHE_BLOCK_SIZE) { // Changed data does not end at block boundry. Need to append // with data from virtual image file XMOUNT_MALLOC(buf2,char*,(CACHE_BLOCK_SIZE- (BlockOff+CurToWrite))*sizeof(char)) memset(buf2,0,CACHE_BLOCK_SIZE-(BlockOff+CurToWrite)); if((FileOff-BlockOff)+CACHE_BLOCK_SIZE>OrigImageSize) { // Original image is smaller than full cache block if(GetOrigImageData(buf2, FileOff+CurToWrite, OrigImageSize-(FileOff+CurToWrite))!= OrigImageSize-(FileOff+CurToWrite)) { LOG_ERROR("Couldn't read data from virtual image file!\n") return -1; } } else { if(GetOrigImageData(buf2, FileOff+CurToWrite, CACHE_BLOCK_SIZE-(BlockOff+CurToWrite))!= CACHE_BLOCK_SIZE-(BlockOff+CurToWrite)) { LOG_ERROR("Couldn't read data from virtual image file!\n") return -1; } } if(fwrite(buf2, CACHE_BLOCK_SIZE-(BlockOff+CurToWrite), 1, hCacheFile)!=1) { LOG_ERROR("Error while writing %zd bytes " "to cache file at offset %" PRIu64 "!\n", CACHE_BLOCK_SIZE-(BlockOff+CurToWrite), pCacheFileBlockIndex[CurBlock].off_data+ BlockOff+CurToWrite); return -1; } free(buf2); } // All important data for this cache block has been written, // flush all buffers and mark cache block as assigned fflush(hCacheFile); #ifndef __APPLE__ ioctl(fileno(hCacheFile),BLKFLSBUF,0); #endif pCacheFileBlockIndex[CurBlock].Assigned=1; // Update cache block index entry in cache file fseeko(hCacheFile, sizeof(TCacheFileHeader)+(CurBlock*sizeof(TCacheFileBlockIndex)), SEEK_SET); if(fwrite(&(pCacheFileBlockIndex[CurBlock]), sizeof(TCacheFileBlockIndex), 1, hCacheFile)!=1) { LOG_ERROR("Couldn't update cache file block index!\n"); return -1; } LOG_DEBUG("Updated cache file block index: Number=%" PRIu64 ", Data offset=%" PRIu64 "\n",CurBlock, pCacheFileBlockIndex[CurBlock].off_data); } // Flush buffers fflush(hCacheFile); #ifndef __APPLE__ ioctl(fileno(hCacheFile),BLKFLSBUF,0); #endif BlockOff=0; CurBlock++; WriteBuf+=CurToWrite; ToWrite-=CurToWrite; FileOff+=CurToWrite; } if(to_write_later!=0) { // Cache virtual image type specific data preceeding original image data switch(XMountConfData.VirtImageType) { case TVirtImageType_DD: case TVirtImageType_DMG: case TVirtImageType_VMDK: case TVirtImageType_VMDKS: case TVirtImageType_VDI: break; case TVirtImageType_VHD: // Micro$oft has choosen to use a footer rather then a header. ret=SetVhdFileHeaderData(WriteBuf,FileOff-OrigImageSize,to_write_later); if(ret==-1) { LOG_ERROR("Couldn't write data to virtual VHD file footer!\n") return -1; } break; } } return size; } /* * GetVirtFileAccess: * FUSE access implementation * * Params: * path: Path of file to get attributes from * perm: Requested permissisons * * Returns: * "0" on success, negated error code on error */ /* static int GetVirtFileAccess(const char *path, int perm) { // TODO: Implement propper file permission handling // http://www.cs.cf.ac.uk/Dave/C/node20.html // Values for the second argument to access. // These may be OR'd together. //#define R_OK 4 // Test for read permission. //#define W_OK 2 // Test for write permission. //#define X_OK 1 // Test for execute permission. //#define F_OK 0 // Test for existence. return 0; } */ /* * GetVirtFileAttr: * FUSE getattr implementation * * Params: * path: Path of file to get attributes from * stbuf: Pointer to stat structure to save attributes to * * Returns: * "0" on success, negated error code on error */ static int GetVirtFileAttr(const char *path, struct stat *stbuf) { memset(stbuf,0,sizeof(struct stat)); if(strcmp(path,"/")==0) { // Attributes of mountpoint stbuf->st_mode=S_IFDIR | 0777; stbuf->st_nlink=2; } else if(strcmp(path,XMountConfData.pVirtualImagePath)==0) { // Attributes of virtual image if(!XMountConfData.Writable) stbuf->st_mode=S_IFREG | 0444; else stbuf->st_mode=S_IFREG | 0666; stbuf->st_nlink=1; // Get virtual image file size if(!GetVirtImageSize(&(stbuf->st_size))) { LOG_ERROR("Couldn't get image size!\n"); return -ENOENT; } if(XMountConfData.VirtImageType==TVirtImageType_VHD) { // Make sure virtual image seems to be fully allocated (not sparse file). // Without this, Windows won't attach the vhd file! stbuf->st_blocks=stbuf->st_size/512; if(stbuf->st_size%512!=0) stbuf->st_blocks++; } } else if(strcmp(path,XMountConfData.pVirtualImageInfoPath)==0) { // Attributes of virtual image info file stbuf->st_mode=S_IFREG | 0444; stbuf->st_nlink=1; // Get virtual image info file size if(pVirtualImageInfoFile!=NULL) { stbuf->st_size=strlen(pVirtualImageInfoFile); } else stbuf->st_size=0; } else if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { // Some special files only present when emulating VMDK files if(strcmp(path,XMountConfData.pVirtualVmdkPath)==0) { // Attributes of virtual vmdk file if(!XMountConfData.Writable) stbuf->st_mode=S_IFREG | 0444; else stbuf->st_mode=S_IFREG | 0666; stbuf->st_nlink=1; // Get virtual image info file size if(pVirtualVmdkFile!=NULL) { stbuf->st_size=VirtualVmdkFileSize; } else stbuf->st_size=0; } else if(pVirtualVmdkLockDir!=NULL && strcmp(path,pVirtualVmdkLockDir)==0) { stbuf->st_mode=S_IFDIR | 0777; stbuf->st_nlink=2; } else if(pVirtualVmdkLockDir2!=NULL && strcmp(path,pVirtualVmdkLockDir2)==0) { stbuf->st_mode=S_IFDIR | 0777; stbuf->st_nlink=2; } else if(pVirtualVmdkLockFileName!=NULL && strcmp(path,pVirtualVmdkLockFileName)==0) { stbuf->st_mode=S_IFREG | 0666; if(pVirtualVmdkLockFileName!=NULL) { stbuf->st_size=strlen(pVirtualVmdkLockFileName); } else stbuf->st_size=0; } else return -ENOENT; } else return -ENOENT; // Set uid and gid of all files to uid and gid of current process stbuf->st_uid=getuid(); stbuf->st_gid=getgid(); return 0; } /* * CreateVirtDir: * FUSE mkdir implementation * * Params: * path: Directory path * mode: Directory permissions * * Returns: * "0" on success, negated error code on error */ static int CreateVirtDir(const char *path, mode_t mode) { // Only allow creation of VMWare's lock directories if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { if(pVirtualVmdkLockDir==NULL) { char aVmdkLockDir[strlen(XMountConfData.pVirtualVmdkPath)+5]; sprintf(aVmdkLockDir,"%s.lck",XMountConfData.pVirtualVmdkPath); if(strcmp(path,aVmdkLockDir)==0) { LOG_DEBUG("Creating virtual directory \"%s\"\n",aVmdkLockDir) XMOUNT_STRSET(pVirtualVmdkLockDir,aVmdkLockDir) return 0; } else { LOG_ERROR("Attempt to create illegal directory \"%s\"!\n",path) LOG_DEBUG("Supposed: %s\n",aVmdkLockDir) return -1; } } else if(pVirtualVmdkLockDir2==NULL && strncmp(path,pVirtualVmdkLockDir,strlen(pVirtualVmdkLockDir))==0) { LOG_DEBUG("Creating virtual directory \"%s\"\n",path) XMOUNT_STRSET(pVirtualVmdkLockDir2,path) return 0; } else { LOG_ERROR("Attempt to create illegal directory \"%s\"!\n",path) LOG_DEBUG("Compared to first %u chars of \"%s\"\n",strlen(pVirtualVmdkLockDir),pVirtualVmdkLockDir) return -1; } } LOG_ERROR("Attempt to create directory \"%s\" " "on read-only filesystem!\n",path) return -1; } /* * CreateVirtFile: * FUSE create implementation. * Only allows to create VMWare's lock file! * * Params: * path: File to create * mode: File mode * dev: ??? but not used * * Returns: * "0" on success, negated error code on error */ static int CreateVirtFile(const char *path, mode_t mode, dev_t dev) { if((XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) && pVirtualVmdkLockDir!=NULL && pVirtualVmdkLockFileName==NULL) { LOG_DEBUG("Creating virtual file \"%s\"\n",path) XMOUNT_STRSET(pVirtualVmdkLockFileName,path); return 0; } else { LOG_ERROR("Attempt to create illegal file \"%s\"\n",path) return -1; } } /* * GetVirtFiles: * FUSE readdir implementation * * Params: * path: Path from where files should be listed * buf: Buffer to write file entrys to * filler: Function to write file entrys to buffer * offset: ??? but not used * fi: ??? but not used * * Returns: * "0" on success, negated error code on error */ static int GetVirtFiles(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) { (void)offset; (void)fi; if(strcmp(path,"/")==0) { // Add std . and .. entrys filler(buf,".",NULL,0); filler(buf,"..",NULL,0); // Add our virtual files (p+1 to ignore starting "/") filler(buf,XMountConfData.pVirtualImagePath+1,NULL,0); filler(buf,XMountConfData.pVirtualImageInfoPath+1,NULL,0); if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { // For VMDK's, we use an additional descriptor file filler(buf,XMountConfData.pVirtualVmdkPath+1,NULL,0); // And there could also be a lock directory if(pVirtualVmdkLockDir!=NULL) { filler(buf,pVirtualVmdkLockDir+1,NULL,0); } } } else if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { // For VMDK emulation, there could be a lock directory if(pVirtualVmdkLockDir!=NULL && strcmp(path,pVirtualVmdkLockDir)==0) { filler(buf,".",NULL,0); filler(buf,"..",NULL,0); if(pVirtualVmdkLockFileName!=NULL) { filler(buf,pVirtualVmdkLockFileName+strlen(pVirtualVmdkLockDir)+1,NULL,0); } } else if(pVirtualVmdkLockDir2!=NULL && strcmp(path,pVirtualVmdkLockDir2)==0) { filler(buf,".",NULL,0); filler(buf,"..",NULL,0); } else return -ENOENT; } else return -ENOENT; return 0; } /* * OpenVirtFile: * FUSE open implementation * * Params: * path: Path to file to open * fi: ??? but not used * * Returns: * "0" on success, negated error code on error */ static int OpenVirtFile(const char *path, struct fuse_file_info *fi) { if(strcmp(path,XMountConfData.pVirtualImagePath)==0 || strcmp(path,XMountConfData.pVirtualImageInfoPath)==0) { // Check open permissions if(!XMountConfData.Writable && (fi->flags & 3)!=O_RDONLY) { // Attempt to open a read-only file for writing LOG_DEBUG("Attempt to open the read-only file \"%s\" for writing.\n",path) return -EACCES; } return 0; } else if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { if(strcmp(path,XMountConfData.pVirtualVmdkPath)==0) { // Check open permissions if(!XMountConfData.Writable && (fi->flags & 3)!=O_RDONLY) { // Attempt to open a read-only file for writing LOG_DEBUG("Attempt to open the read-only file \"%s\" for writing.\n",path) return -EACCES; } return 0; } else if(pVirtualVmdkLockFileName!=NULL && strcmp(path,pVirtualVmdkLockFileName)==0) { // Check open permissions if(!XMountConfData.Writable && (fi->flags & 3)!=O_RDONLY) { // Attempt to open a read-only file for writing LOG_DEBUG("Attempt to open the read-only file \"%s\" for writing.\n",path) return -EACCES; } return 0; } else { // Attempt to open a non existant file LOG_DEBUG("Attempt to open non existant file \"%s\".\n",path) return -ENOENT; } } else { // Attempt to open a non existant file LOG_DEBUG("Attempt to open non existant file \"%s\".\n",path) return -ENOENT; } } /* * ReadVirtFile: * FUSE read implementation * * Params: * buf: Buffer where read data is written to * size: Number of bytes to read * offset: Offset to start reading at * fi: ?? but not used * * Returns: * Read bytes on success, negated error code on error */ static int ReadVirtFile(const char *path, char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { uint64_t len; if(strcmp(path,XMountConfData.pVirtualImagePath)==0) { // Wait for other threads to end reading/writing data pthread_mutex_lock(&mutex_image_rw); // Get virtual image file size if(!GetVirtImageSize(&len)) { LOG_ERROR("Couldn't get virtual image size!\n") pthread_mutex_unlock(&mutex_image_rw); return 0; } if(offsetlen) size=len-offset; if(GetVirtImageData(buf,offset,size)!=size) { LOG_ERROR("Couldn't read data from virtual image file!\n") pthread_mutex_unlock(&mutex_image_rw); return 0; } } else { LOG_DEBUG("Attempt to read past EOF of virtual image file\n"); pthread_mutex_unlock(&mutex_image_rw); return 0; } // Allow other threads to read/write data again pthread_mutex_unlock(&mutex_image_rw); } else if(strcmp(path,XMountConfData.pVirtualImageInfoPath)==0) { // Read data from virtual image info file len=strlen(pVirtualImageInfoFile); if(offsetlen) { size=len-offset; LOG_DEBUG("Attempt to read past EOF of virtual image info file\n") } pthread_mutex_lock(&mutex_info_read); memcpy(buf,pVirtualImageInfoFile+offset,size); pthread_mutex_unlock(&mutex_info_read); LOG_DEBUG("Read %" PRIu64 " bytes at offset %" PRIu64 " from virtual image info file\n",size,offset) } else { LOG_DEBUG("Attempt to read past EOF of virtual info file\n"); return 0; } } else if(strcmp(path,XMountConfData.pVirtualVmdkPath)==0) { // Read data from virtual vmdk file len=VirtualVmdkFileSize; if(offsetlen) { LOG_DEBUG("Attempt to read past EOF of virtual vmdk file\n") LOG_DEBUG("Adjusting read size from %u to %u\n",size,len-offset) size=len-offset; } pthread_mutex_lock(&mutex_image_rw); memcpy(buf,pVirtualVmdkFile+offset,size); pthread_mutex_unlock(&mutex_image_rw); LOG_DEBUG("Read %" PRIu64 " bytes at offset %" PRIu64 " from virtual vmdk file\n",size,offset) } else { LOG_DEBUG("Attempt to read behind EOF of virtual vmdk file\n"); return 0; } } else if(pVirtualVmdkLockFileName!=NULL && strcmp(path,pVirtualVmdkLockFileName)==0) { // Read data from virtual lock file len=VirtualVmdkLockFileDataSize; if(offsetlen) { LOG_DEBUG("Attempt to read past EOF of virtual vmdk lock file\n") LOG_DEBUG("Adjusting read size from %u to %u\n",size,len-offset) size=len-offset; } pthread_mutex_lock(&mutex_image_rw); memcpy(buf,pVirtualVmdkLockFileData+offset,size); pthread_mutex_unlock(&mutex_image_rw); LOG_DEBUG("Read %" PRIu64 " bytes at offset %" PRIu64 " from virtual vmdk lock file\n",size,offset) } else { LOG_DEBUG("Attempt to read past EOF of virtual vmdk lock file\n"); return 0; } } else { // Attempt to read non existant file LOG_DEBUG("Attempt to read from non existant file \"%s\"\n",path) return -ENOENT; } return size; } /* * RenameVirtFile: * FUSE rename implementation * * Params: * path: File to rename * npath: New filename * * Returns: * "0" on error, negated error code on error */ static int RenameVirtFile(const char *path, const char *npath) { if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { if(pVirtualVmdkLockFileName!=NULL && strcmp(path,pVirtualVmdkLockFileName)==0) { LOG_DEBUG("Renaming virtual lock file from \"%s\" to \"%s\"\n", pVirtualVmdkLockFileName, npath) XMOUNT_REALLOC(pVirtualVmdkLockFileName,char*, (strlen(npath)+1)*sizeof(char)); strcpy(pVirtualVmdkLockFileName,npath); return 0; } } return -ENOENT; } /* * DeleteVirtDir: * FUSE rmdir implementation * * Params: * path: Directory to delete * * Returns: * "0" on success, negated error code on error */ static int DeleteVirtDir(const char *path) { // Only VMWare's lock directories can be deleted if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { if(pVirtualVmdkLockDir!=NULL && strcmp(path,pVirtualVmdkLockDir)==0) { LOG_DEBUG("Deleting virtual lock dir \"%s\"\n",pVirtualVmdkLockDir) free(pVirtualVmdkLockDir); pVirtualVmdkLockDir=NULL; return 0; } else if(pVirtualVmdkLockDir2!=NULL && strcmp(path,pVirtualVmdkLockDir2)==0) { LOG_DEBUG("Deleting virtual lock dir \"%s\"\n",pVirtualVmdkLockDir) free(pVirtualVmdkLockDir2); pVirtualVmdkLockDir2=NULL; return 0; } } return -1; } /* * DeleteVirtFile: * FUSE unlink implementation * * Params: * path: File to delete * * Returns: * "0" on success, negated error code on error */ static int DeleteVirtFile(const char *path) { // Only VMWare's lock file can be deleted if(XMountConfData.VirtImageType==TVirtImageType_VMDK || XMountConfData.VirtImageType==TVirtImageType_VMDKS) { if(pVirtualVmdkLockFileName!=NULL && strcmp(path,pVirtualVmdkLockFileName)==0) { LOG_DEBUG("Deleting virtual file \"%s\"\n",pVirtualVmdkLockFileName) free(pVirtualVmdkLockFileName); free(pVirtualVmdkLockFileData); pVirtualVmdkLockFileName=NULL; pVirtualVmdkLockFileData=NULL; VirtualVmdkLockFileDataSize=0; return 0; } } return -1; } /* * GetVirtFsStats: * FUSE statfs implementation * * Params: * path: Get stats for fs that the specified file resides in * stats: Stats * * Returns: * "0" on success, negated error code on error */ /* static int GetVirtFsStats(const char *path, struct statvfs *stats) { struct statvfs CacheFileFsStats; int ret; if(XMountConfData.Writable==TRUE) { // If write support is enabled, return stats of fs upon which cache file // resides in if((ret=statvfs(XMountConfData.pCacheFile,&CacheFileFsStats))==0) { memcpy(stats,&CacheFileFsStats,sizeof(struct statvfs)); return 0; } else { LOG_ERROR("Couldn't get stats for fs upon which resides \"%s\"\n", XMountConfData.pCacheFile) return ret; } } else { // TODO: Return read only return 0; } } */ /* * WriteVirtFile: * FUSE write implementation * * Params: * buf: Buffer containing data to write * size: Number of bytes to write * offset: Offset to start writing at * fi: ?? but not used * * Returns: * Written bytes on success, negated error code on error */ static int WriteVirtFile(const char *path, const char *buf, size_t size, off_t offset, struct fuse_file_info *fi) { uint64_t len; if(strcmp(path,XMountConfData.pVirtualImagePath)==0) { // Wait for other threads to end reading/writing data pthread_mutex_lock(&mutex_image_rw); // Get virtual image file size if(!GetVirtImageSize(&len)) { LOG_ERROR("Couldn't get virtual image size!\n") pthread_mutex_unlock(&mutex_image_rw); return 0; } if(offsetlen) size=len-offset; if(SetVirtImageData(buf,offset,size)!=size) { LOG_ERROR("Couldn't write data to virtual image file!\n") pthread_mutex_unlock(&mutex_image_rw); return 0; } } else { LOG_DEBUG("Attempt to write past EOF of virtual image file\n") pthread_mutex_unlock(&mutex_image_rw); return 0; } // Allow other threads to read/write data again pthread_mutex_unlock(&mutex_image_rw); } else if(strcmp(path,XMountConfData.pVirtualVmdkPath)==0) { pthread_mutex_lock(&mutex_image_rw); len=VirtualVmdkFileSize; if((offset+size)>len) { // Enlarge or create buffer if needed if(len==0) { len=offset+size; XMOUNT_MALLOC(pVirtualVmdkFile,char*,len*sizeof(char)) } else { len=offset+size; XMOUNT_REALLOC(pVirtualVmdkFile,char*,len*sizeof(char)) } VirtualVmdkFileSize=offset+size; } // Copy data to buffer memcpy(pVirtualVmdkFile+offset,buf,size); pthread_mutex_unlock(&mutex_image_rw); } else if(pVirtualVmdkLockFileName!=NULL && strcmp(path,pVirtualVmdkLockFileName)==0) { pthread_mutex_lock(&mutex_image_rw); if((offset+size)>VirtualVmdkLockFileDataSize) { // Enlarge or create buffer if needed if(VirtualVmdkLockFileDataSize==0) { VirtualVmdkLockFileDataSize=offset+size; XMOUNT_MALLOC(pVirtualVmdkLockFileData,char*, VirtualVmdkLockFileDataSize*sizeof(char)) } else { VirtualVmdkLockFileDataSize=offset+size; XMOUNT_REALLOC(pVirtualVmdkLockFileData,char*, VirtualVmdkLockFileDataSize*sizeof(char)) } } // Copy data to buffer memcpy(pVirtualVmdkLockFileData+offset,buf,size); pthread_mutex_unlock(&mutex_image_rw); } else if(strcmp(path,XMountConfData.pVirtualImageInfoPath)==0) { // Attempt to write data to read only image info file LOG_DEBUG("Attempt to write data to virtual info file\n"); return -ENOENT; } else { // Attempt to write to non existant file LOG_DEBUG("Attempt to write to the non existant file \"%s\"\n",path) return -ENOENT; } return size; } /* * CalculateInputImageHash: * Calculates an MD5 hash of the first HASH_AMOUNT bytes of the input image. * * Params: * pHashLow : Pointer to the lower 64 bit of the hash * pHashHigh : Pointer to the higher 64 bit of the hash * * Returns: * TRUE on success, FALSE on error */ static int CalculateInputImageHash(uint64_t *pHashLow, uint64_t *pHashHigh) { char hash[16]; md5_state_t md5_state; char *buf; XMOUNT_MALLOC(buf,char*,HASH_AMOUNT*sizeof(char)) size_t read_data=GetOrigImageData(buf,0,HASH_AMOUNT); if(read_data>0) { // Calculate MD5 hash md5_init(&md5_state); md5_append(&md5_state,buf,HASH_AMOUNT); md5_finish(&md5_state,hash); // Convert MD5 hash into two 64bit integers *pHashLow=*((uint64_t*)hash); *pHashHigh=*((uint64_t*)(hash+8)); free(buf); return TRUE; } else { LOG_ERROR("Couldn't read data from original image file!\n") free(buf); return FALSE; } } /* * InitVirtVdiHeader: * Build and init virtual VDI file header * * Params: * n/a * * Returns: * "TRUE" on success, "FALSE" on error */ static int InitVirtVdiHeader() { // See http://forums.virtualbox.org/viewtopic.php?t=8046 for a // "description" of the various header fields uint64_t ImageSize; off_t offset; uint32_t i,BlockEntries; // Get input image size if(!GetOrigImageSize(&ImageSize)) { LOG_ERROR("Couldn't get input image size!\n") return FALSE; } // Calculate how many VDI blocks we need BlockEntries=ImageSize/VDI_IMAGE_BLOCK_SIZE; if((ImageSize%VDI_IMAGE_BLOCK_SIZE)!=0) BlockEntries++; VdiBlockMapSize=BlockEntries*sizeof(uint32_t); LOG_DEBUG("BlockMap: %d (%08X) entries, %d (%08X) bytes!\n", BlockEntries, BlockEntries, VdiBlockMapSize, VdiBlockMapSize) // Allocate memory for vdi header and block map VdiFileHeaderSize=sizeof(TVdiFileHeader)+VdiBlockMapSize; XMOUNT_MALLOC(pVdiFileHeader,pTVdiFileHeader,VdiFileHeaderSize) memset(pVdiFileHeader,0,VdiFileHeaderSize); pVdiBlockMap=((void*)pVdiFileHeader)+sizeof(TVdiFileHeader); // Init header values strncpy(pVdiFileHeader->szFileInfo,VDI_FILE_COMMENT, strlen(VDI_FILE_COMMENT)+1); pVdiFileHeader->u32Signature=VDI_IMAGE_SIGNATURE; pVdiFileHeader->u32Version=VDI_IMAGE_VERSION; pVdiFileHeader->cbHeader=0x00000180; // No idea what this is for! Testimage had same value pVdiFileHeader->u32Type=VDI_IMAGE_TYPE_FIXED; pVdiFileHeader->fFlags=VDI_IMAGE_FLAGS; strncpy(pVdiFileHeader->szComment,VDI_HEADER_COMMENT, strlen(VDI_HEADER_COMMENT)+1); pVdiFileHeader->offData=VdiFileHeaderSize; pVdiFileHeader->offBlocks=sizeof(TVdiFileHeader); pVdiFileHeader->cCylinders=0; // Legacy info pVdiFileHeader->cHeads=0; // Legacy info pVdiFileHeader->cSectors=0; // Legacy info pVdiFileHeader->cbSector=512; // Legacy info pVdiFileHeader->u32Dummy=0; pVdiFileHeader->cbDisk=ImageSize; // Seems as VBox is always using a 1MB blocksize pVdiFileHeader->cbBlock=VDI_IMAGE_BLOCK_SIZE; pVdiFileHeader->cbBlockExtra=0; pVdiFileHeader->cBlocks=BlockEntries; pVdiFileHeader->cBlocksAllocated=BlockEntries; // Use partial MD5 input file hash as creation UUID and generate a random // modification UUID. VBox won't accept immages where create and modify UUIDS // aren't set. pVdiFileHeader->uuidCreate_l=XMountConfData.InputHashLo; pVdiFileHeader->uuidCreate_h=XMountConfData.InputHashHi; //*((uint32_t*)(&(pVdiFileHeader->uuidCreate_l)))=rand(); //*((uint32_t*)(&(pVdiFileHeader->uuidCreate_l))+4)=rand(); //*((uint32_t*)(&(pVdiFileHeader->uuidCreate_h)))=rand(); //*((uint32_t*)(&(pVdiFileHeader->uuidCreate_h))+4)=rand(); #define rand64(var) { \ *((uint32_t*)&(var))=rand(); \ *(((uint32_t*)&(var))+1)=rand(); \ } rand64(pVdiFileHeader->uuidModify_l); rand64(pVdiFileHeader->uuidModify_h); #undef rand64 // Generate block map i=0; for(offset=0;offsetcookie=VHD_IMAGE_HVAL_COOKIE; pVhdFileHeader->features=VHD_IMAGE_HVAL_FEATURES; pVhdFileHeader->file_format_version=VHD_IMAGE_HVAL_FILE_FORMAT_VERSION; pVhdFileHeader->data_offset=VHD_IMAGE_HVAL_DATA_OFFSET; pVhdFileHeader->creation_time=htobe32(time(NULL)- VHD_IMAGE_TIME_CONVERSION_OFFSET); pVhdFileHeader->creator_app=VHD_IMAGE_HVAL_CREATOR_APPLICATION; pVhdFileHeader->creator_ver=VHD_IMAGE_HVAL_CREATOR_VERSION; pVhdFileHeader->creator_os=VHD_IMAGE_HVAL_CREATOR_HOST_OS; pVhdFileHeader->size_original=htobe64(orig_image_size); pVhdFileHeader->size_current=pVhdFileHeader->size_original; // Convert size to sectors if(orig_image_size>136899993600) { // image is larger then CHS values can address. // Set sectors to max (C65535*H16*S255). geom_tot_s=267382800; } else { // Calculate actual sectors geom_tot_s=orig_image_size/512; if((orig_image_size%512)!=0) geom_tot_s++; } // Calculate CHS values. This is done according to the VHD specs if(geom_tot_s>=66059280) { // C65535 * H16 * S63 geom_s=255; geom_h=16; geom_c_x_h=geom_tot_s/geom_s; } else { geom_s=17; geom_c_x_h=geom_tot_s/geom_s; geom_h=(geom_c_x_h+1023)/1024; if(geom_h<4) geom_h=4; if(geom_c_x_h>=(geom_h*1024) || geom_h>16) { geom_s=31; geom_h=16; geom_c_x_h=geom_tot_s/geom_s; } if(geom_c_x_h>=(geom_h*1024)) { geom_s=63; geom_h=16; geom_c_x_h=geom_tot_s/geom_s; } } geom_c=geom_c_x_h/geom_h; pVhdFileHeader->disk_geometry_c=htobe16(geom_c); pVhdFileHeader->disk_geometry_h=geom_h; pVhdFileHeader->disk_geometry_s=geom_s; pVhdFileHeader->disk_type=VHD_IMAGE_HVAL_DISK_TYPE; pVhdFileHeader->uuid_l=XMountConfData.InputHashLo; pVhdFileHeader->uuid_h=XMountConfData.InputHashHi; pVhdFileHeader->saved_state=0x00; // Calculate footer checksum for(i=0;ichecksum=htobe32(~checksum); LOG_DEBUG("VHD header size = %u\n",sizeof(TVhdFileHeader)); return TRUE; } /* * InitVirtualVmdkFile: * Init the virtual VMDK file * * Params: * n/a * * Returns: * "TRUE" on success, "FALSE" on error */ static int InitVirtualVmdkFile() { uint64_t ImageSize=0; uint64_t ImageBlocks=0; char buf[500]; // Get original image size if(!GetOrigImageSize(&ImageSize)) { LOG_ERROR("Couldn't get original image size!\n") return FALSE; } ImageBlocks=ImageSize/512; if(ImageSize%512!=0) ImageBlocks++; #define VMDK_DESC_FILE "# Disk DescriptorFile\n" \ "version=1\n" \ "CID=fffffffe\n" \ "parentCID=ffffffff\n" \ "createType=\"monolithicFlat\"\n\n" \ "# Extent description\n" \ "RW %" PRIu64 " FLAT \"%s\" 0\n\n" \ "# The Disk Data Base\n" \ "#DDB\n" \ "ddb.virtualHWVersion = \"3\"\n" \ "ddb.adapterType = \"%s\"\n" \ "ddb.geometry.cylinders = \"0\"\n" \ "ddb.geometry.heads = \"0\"\n" \ "ddb.geometry.sectors = \"0\"\n" if(XMountConfData.VirtImageType==TVirtImageType_VMDK) { // VMDK with IDE bus sprintf(buf, VMDK_DESC_FILE, ImageBlocks, (XMountConfData.pVirtualImagePath)+1, "ide"); } else if(XMountConfData.VirtImageType==TVirtImageType_VMDKS){ // VMDK with SCSI bus sprintf(buf, VMDK_DESC_FILE, ImageBlocks, (XMountConfData.pVirtualImagePath)+1, "scsi"); } else { LOG_ERROR("Unknown virtual VMDK file format!\n") return FALSE; } #undef VMDK_DESC_FILE // Do not use XMOUNT_STRSET here to avoid adding '\0' to the buffer! XMOUNT_MALLOC(pVirtualVmdkFile,char*,strlen(buf)) strncpy(pVirtualVmdkFile,buf,strlen(buf)); VirtualVmdkFileSize=strlen(buf); return TRUE; } /* * InitVirtImageInfoFile: * Create virtual image info file * * Params: * n/a * * Returns: * "TRUE" on success, "FALSE" on error */ static int InitVirtImageInfoFile() { char buf[200]; int ret; // Add static header to file XMOUNT_MALLOC(pVirtualImageInfoFile,char*,(strlen(IMAGE_INFO_HEADER)+1)) strncpy(pVirtualImageInfoFile,IMAGE_INFO_HEADER,strlen(IMAGE_INFO_HEADER)+1); switch(XMountConfData.OrigImageType) { case TOrigImageType_DD: // Original image is a DD file. There isn't much info to extract. Perhaps // just add image size // TODO: Add infos to virtual image info file break; #ifdef WITH_LIBEWF #define M_SAVE_VALUE(DESC,SHORT_DESC) { \ if(ret==1) { \ XMOUNT_REALLOC(pVirtualImageInfoFile,char*, \ (strlen(pVirtualImageInfoFile)+strlen(buf)+strlen(DESC)+2)) \ strncpy((pVirtualImageInfoFile+strlen(pVirtualImageInfoFile)),DESC,strlen(DESC)+1); \ strncpy((pVirtualImageInfoFile+strlen(pVirtualImageInfoFile)),buf,strlen(buf)+1); \ strncpy((pVirtualImageInfoFile+strlen(pVirtualImageInfoFile)),"\n",2); \ } else if(ret==-1) { \ LOG_WARNING("Couldn't query EWF image header value '%s'\n",SHORT_DESC) \ } \ } case TOrigImageType_EWF: // Original image is an EWF file. Extract various infos from ewf file and // add them to the virtual image info file content. #if defined( HAVE_LIBEWF_V2_API ) ret=libewf_handle_get_utf8_header_value_case_number(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Case number: ","Case number") ret=libewf_handle_get_utf8_header_value_description(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Description: ","Description") ret=libewf_handle_get_utf8_header_value_examiner_name(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Examiner: ","Examiner") ret=libewf_handle_get_utf8_header_value_evidence_number(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Evidence number: ","Evidence number") ret=libewf_handle_get_utf8_header_value_notes(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Notes: ","Notes") ret=libewf_handle_get_utf8_header_value_acquiry_date(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Acquiry date: ","Acquiry date") ret=libewf_handle_get_utf8_header_value_system_date(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("System date: ","System date") ret=libewf_handle_get_utf8_header_value_acquiry_operating_system(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Acquiry os: ","Acquiry os") ret=libewf_handle_get_utf8_header_value_acquiry_software_version(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("Acquiry sw version: ","Acquiry sw version") ret=libewf_handle_get_utf8_hash_value_md5(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("MD5 hash: ","MD5 hash") ret=libewf_handle_get_utf8_hash_value_sha1(hEwfFile,buf,sizeof(buf),NULL); M_SAVE_VALUE("SHA1 hash: ","SHA1 hash") #else ret=libewf_get_header_value_case_number(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Case number: ","Case number") ret=libewf_get_header_value_description(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Description: ","Description") ret=libewf_get_header_value_examiner_name(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Examiner: ","Examiner") ret=libewf_get_header_value_evidence_number(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Evidence number: ","Evidence number") ret=libewf_get_header_value_notes(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Notes: ","Notes") ret=libewf_get_header_value_acquiry_date(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Acquiry date: ","Acquiry date") ret=libewf_get_header_value_system_date(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("System date: ","System date") ret=libewf_get_header_value_acquiry_operating_system(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Acquiry os: ","Acquiry os") ret=libewf_get_header_value_acquiry_software_version(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("Acquiry sw version: ","Acquiry sw version") ret=libewf_get_hash_value_md5(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("MD5 hash: ","MD5 hash") ret=libewf_get_hash_value_sha1(hEwfFile,buf,sizeof(buf)); M_SAVE_VALUE("SHA1 hash: ","SHA1 hash") #endif break; #undef M_SAVE_VALUE #endif #ifdef WITH_LIBAEWF case TOrigImageType_AEWF: if((ret=AewfInfo(hAewfFile,(const char**)&pVirtualImageInfoFile))!=AEWF_OK) { LOG_ERROR("Unable to get EWF image infos using AewfInfo. Return code %d!\n",ret) return FALSE; } break; #endif #ifdef WITH_LIBAFF case TOrigImageType_AFF: // TODO: Extract some infos from AFF file to add to our info file break; #endif #ifdef WITH_LIBAAFF case TOrigImageType_AAFF: if((ret=AaffInfo(hAaffFile,&pVirtualImageInfoFile))!=AAFF_OK) { LOG_ERROR("Unable to get AAF image infos using AaffInfo. Return code %d!\n",ret) return FALSE; } break; #endif default: LOG_ERROR("Unsupported input image type!\n") return FALSE; } return TRUE; } /* * InitCacheFile: * Create / load cache file to enable virtual write support * * Params: * n/a * * Returns: * "TRUE" on success, "FALSE" on error */ static int InitCacheFile() { uint64_t ImageSize=0; uint64_t BlockIndexSize=0; uint64_t CacheFileHeaderSize=0; uint64_t CacheFileSize=0; uint32_t NeededBlocks=0; uint64_t buf; if(!XMountConfData.OverwriteCache) { // Try to open an existing cache file or create a new one hCacheFile=(FILE*)FOPEN(XMountConfData.pCacheFile,"rb+"); if(hCacheFile==NULL) { // As the c lib seems to have no possibility to open a file rw wether it // exists or not (w+ does not work because it truncates an existing file), // when r+ returns NULL the file could simply not exist LOG_DEBUG("Cache file does not exist. Creating new one\n") hCacheFile=(FILE*)FOPEN(XMountConfData.pCacheFile,"wb+"); if(hCacheFile==NULL) { // There is really a problem opening the file LOG_ERROR("Couldn't open cache file \"%s\"!\n", XMountConfData.pCacheFile) return FALSE; } } } else { // Overwrite existing cache file or create a new one hCacheFile=(FILE*)FOPEN(XMountConfData.pCacheFile,"wb+"); if(hCacheFile==NULL) { LOG_ERROR("Couldn't open cache file \"%s\"!\n", XMountConfData.pCacheFile) return FALSE; } } // Get input image size if(!GetOrigImageSize(&ImageSize)) { LOG_ERROR("Couldn't get input image size!\n") return FALSE; } // Calculate how many blocks are needed and how big the buffers must be // for the actual cache file version NeededBlocks=ImageSize/CACHE_BLOCK_SIZE; if((ImageSize%CACHE_BLOCK_SIZE)!=0) NeededBlocks++; BlockIndexSize=NeededBlocks*sizeof(TCacheFileBlockIndex); CacheFileHeaderSize=sizeof(TCacheFileHeader)+BlockIndexSize; LOG_DEBUG("Cache blocks: %u (%04X) entries, %zd (%08zX) bytes\n", NeededBlocks, NeededBlocks, BlockIndexSize, BlockIndexSize) // Get cache file size // fseeko64 had massive problems! if(fseeko(hCacheFile,0,SEEK_END)!=0) { LOG_ERROR("Couldn't seek to end of cache file!\n") return FALSE; } // Same here, ftello64 didn't work at all and returned 0 all the times CacheFileSize=ftello(hCacheFile); LOG_DEBUG("Cache file has %zd bytes\n",CacheFileSize) if(CacheFileSize>0) { // Cache file isn't empty, parse block header LOG_DEBUG("Cache file not empty. Parsing block header\n") if(fseeko(hCacheFile,0,SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to beginning of cache file!\n") return FALSE; } // Read and check file signature if(fread(&buf,8,1,hCacheFile)!=1 || buf!=CACHE_FILE_SIGNATURE) { free(pCacheFileHeader); LOG_ERROR("Not an xmount cache file or cache file corrupt!\n") return FALSE; } // Now get cache file version (Has only 32bit!) if(fread(&buf,4,1,hCacheFile)!=1) { free(pCacheFileHeader); LOG_ERROR("Not an xmount cache file or cache file corrupt!\n") return FALSE; } switch((uint32_t)buf) { case 0x00000001: // Old v1 cache file. LOG_ERROR("Unsupported cache file version!\n") LOG_ERROR("Please use xmount-tool to upgrade your cache file.\n") return FALSE; case CUR_CACHE_FILE_VERSION: // Current version if(fseeko(hCacheFile,0,SEEK_SET)!=0) { LOG_ERROR("Couldn't seek to beginning of cache file!\n") return FALSE; } // Alloc memory for header and block index XMOUNT_MALLOC(pCacheFileHeader,pTCacheFileHeader,CacheFileHeaderSize) memset(pCacheFileHeader,0,CacheFileHeaderSize); // Read header and block index from file if(fread(pCacheFileHeader,CacheFileHeaderSize,1,hCacheFile)!=1) { // Cache file isn't big enough free(pCacheFileHeader); LOG_ERROR("Cache file corrupt!\n") return FALSE; } break; default: LOG_ERROR("Unknown cache file version!\n") return FALSE; } // Check if cache file has same block size as we do if(pCacheFileHeader->BlockSize!=CACHE_BLOCK_SIZE) { LOG_ERROR("Cache file does not use default cache block size!\n") return FALSE; } // Set pointer to block index pCacheFileBlockIndex=(pTCacheFileBlockIndex)((void*)pCacheFileHeader+ pCacheFileHeader->pBlockIndex); } else { // New cache file, generate a new block header LOG_DEBUG("Cache file is empty. Generating new block header\n"); // Alloc memory for header and block index XMOUNT_MALLOC(pCacheFileHeader,pTCacheFileHeader,CacheFileHeaderSize) memset(pCacheFileHeader,0,CacheFileHeaderSize); pCacheFileHeader->FileSignature=CACHE_FILE_SIGNATURE; pCacheFileHeader->CacheFileVersion=CUR_CACHE_FILE_VERSION; pCacheFileHeader->BlockSize=CACHE_BLOCK_SIZE; pCacheFileHeader->BlockCount=NeededBlocks; //pCacheFileHeader->UsedBlocks=0; // The following pointer is only usuable when reading data from cache file pCacheFileHeader->pBlockIndex=sizeof(TCacheFileHeader); pCacheFileBlockIndex=(pTCacheFileBlockIndex)((void*)pCacheFileHeader+ sizeof(TCacheFileHeader)); pCacheFileHeader->VdiFileHeaderCached=FALSE; pCacheFileHeader->pVdiFileHeader=0; pCacheFileHeader->VmdkFileCached=FALSE; pCacheFileHeader->VmdkFileSize=0; pCacheFileHeader->pVmdkFile=0; pCacheFileHeader->VhdFileHeaderCached=FALSE; pCacheFileHeader->pVhdFileHeader=0; // Write header to file if(fwrite(pCacheFileHeader,CacheFileHeaderSize,1,hCacheFile)!=1) { free(pCacheFileHeader); LOG_ERROR("Couldn't write cache file header to file!\n"); return FALSE; } } return TRUE; } +/* + * SearchInputLib + */ +int SearchInputLib() { + DIR *p_dir=NULL; + struct dirent *p_dirent=NULL; + + // Open lib dir + p_dir=opendir(XMOUNT_LIBRARY_PATH); + if(p_dir==NULL) { + LOG_ERROR("Unable to access xmount library directory '%s'!", + XMOUNT_LIBRARY_PATH); + return 0; + } + + while((p_dirent=readdir(p_dir))!=NULL) { + if(strncmp(p_dirent->d_name,"libxmount_input_",16)!=0) continue; +// p_libxmount_in=dlopen( + } + + //libxmount_in_functions +} + /* * Struct containing implemented FUSE functions */ static struct fuse_operations xmount_operations = { // .access=GetVirtFileAccess, .getattr=GetVirtFileAttr, .mkdir=CreateVirtDir, .mknod=CreateVirtFile, .open=OpenVirtFile, .readdir=GetVirtFiles, .read=ReadVirtFile, .rename=RenameVirtFile, .rmdir=DeleteVirtDir, // .statfs=GetVirtFsStats, .unlink=DeleteVirtFile, .write=WriteVirtFile // .release=mountewf_release, }; /* * Main */ int main(int argc, char *argv[]) { char **ppInputFilenames=NULL; int InputFilenameCount=0; int nargc=0; char **ppNargv=NULL; char *pMountpoint=NULL; int ret=1; int i=0; int rc; char *p_lib_err=NULL; setbuf(stdout,NULL); setbuf(stderr,NULL); // Init XMountConfData XMountConfData.OrigImageType=TOrigImageType_DD; #ifndef __APPLE__ XMountConfData.VirtImageType=TVirtImageType_DD; #else XMountConfData.VirtImageType=TVirtImageType_DMG; #endif XMountConfData.Debug=FALSE; XMountConfData.pVirtualImagePath=NULL; XMountConfData.pVirtualVmdkPath=NULL; XMountConfData.pVirtualImageInfoPath=NULL; XMountConfData.Writable=FALSE; XMountConfData.OverwriteCache=FALSE; XMountConfData.pCacheFile=NULL; XMountConfData.OrigImageSize=0; XMountConfData.VirtImageSize=0; XMountConfData.InputHashLo=0; XMountConfData.InputHashHi=0; XMountConfData.orig_img_offset=0; XMountConfData.p_lib_params=NULL; // Parse command line options if(!ParseCmdLine(argc, argv, &nargc, &ppNargv, &InputFilenameCount, &ppInputFilenames, &pMountpoint)) { LOG_ERROR("Error parsing command line options!\n") //PrintUsage(argv[0]); return 1; } // Check command line options if(nargc<2 /*|| InputFilenameCount==0 || pMountpoint==NULL*/) { LOG_ERROR("Couldn't parse command line options!\n") PrintUsage(argv[0]); return 1; } if(XMountConfData.Debug==TRUE) { LOG_DEBUG("Options passed to FUSE: ") for(i=0;i32bit 20090308: * Added SetVdiFileHeaderData function to handle virtual image type specific data to be cached. This makes cache files independent from virtual image type 20090316: v0.2.0 released 20090327: v0.2.1 released * Fixed a bug in virtual write support. Checking whether data is cached didn't use semaphores. This could corrupt cache files when running multi-threaded. * Added IsVdiFileHeaderCached function to check whether VDI file header was already cached * Added IsBlockCached function to check whether a block was already cached 20090331: v0.2.2 released (Internal release) * Further changes to semaphores to fix write support bug. 20090410: v0.2.3 released * Reverted most of the fixes from v0.2.1 and v0.2.2 as those did not solve the write support bug. * Removed all semaphores * Added two pthread mutexes to protect virtual image and virtual info file. 20090508: * Configure script will now exit when needed libraries aren't found * Added support for newest libewf beta version 20090506 as it seems to reduce memory usage when working with EWF files by about 1/2. * Added LIBEWF_BETA define to adept source to new libewf API. * Added function InitVirtualVmdkFile to build a VmWare virtual disk descriptor file. 20090519: * Added function CreateVirtDir implementing FUSE's mkdir to allow VMWare to create his .vmdk.lck lock folder. Function does not allow to create other folders! * Changed cache file handling as VMDK caching will need new cache file structure incompatible to the old one. 20090522: v0.3.0 released * Added function DeleteVirtFile and DeleteVirtDir so VMWare can remove his lock directories and files. * Added function RenameVirtFile because VMWare needs to rename his lock files. * VMDK support should work now but descriptor file won't get cached as I didn't implement it yet. 20090604: * Added --cache commandline parameter doing the same as --rw. * Added --owcache commandline parameter doing the same as --rw but overwrites any existing cache data. This can be handy for debugging and testing purposes. * Added "vmdks" output type. Same as "vmdk" but generates a disk connected to the SCSI bus rather than the IDE bus. 20090710: v0.3.1 released 20090721: * Added function CheckFuseAllowOther to check wether FUSE supports the "-o allow_other" option. It is supported when "user_allow_other" is set in /etc/fuse.conf or when running xmount as root. * Automatic addition of FUSE's "-o allow_other" option if it is supported. * Added special "-o no_allow_other" command line parameter to disable automatic addition of the above option. * Reorganisation of FUSE's and xmount's command line options processing. * Added LogWarnMessage function to output a warning message. 20090722: * Added function CalculateInputImageHash to calculate an MD5 hash of the first input image's HASH_AMOUNT bytes of data. This hash is used as VDI creation UUID and will later be used to match cache files to input images. 20090724: v0.3.2 released 20090725: v0.4.0 released * Added AFF input image support. * Due to various problems with libewf and libaff packages (Mainly in Debian and Ubuntu), I decided to include them into xmount's source tree and link them in statically. This has the advantage that I can use whatever version I want. 20090727: v0.4.1 released * Added again the ability to compile xmount with shared libs as the Debian folks don't like the static ones :) 20090812: * Added TXMountConfData.OrigImageSize and TXMountConfData.VirtImageSize to save the size of the input and output image in order to avoid regetting it always from disk. 20090814: * Replaced all malloc and realloc occurences with the two macros XMOUNT_MALLOC and XMOUNT_REALLOC. 20090816: * Replaced where applicable all occurences of str(n)cpy or alike with their corresponding macros XMOUNT_STRSET, XMOUNT_STRCPY and XMOUNT_STRNCPY pendants. 20090907: v0.4.2 released * Fixed a bug in VMDK lock file access. VirtualVmdkLockFileDataSize wasn't reset to 0 when the file was deleted. * Fixed a bug in VMDK descriptor file access. Had to add VirtualVmdkFileSize to track the size of this file as strlen was a bad idea :). 20100324: v0.4.3 released * Changed all header structs to prevent different sizes on i386 and amd64. See xmount.h for more details. 20100810: v0.4.4 released * Found a bug in InitVirtVdiHeader(). The 64bit values were addressed incorrectly while filled with rand(). This leads to an error message when trying to add a VDI file to VirtualBox 3.2.8. 20110210: * Adding subtype and fsname FUSE options in order to display mounted source in mount command output. 20110211: v0.4.5 released 20111011: * Changes to deal with libewf v2 API (Thx to Joachim Metz) 20111109: v0.4.6 released * Added support for DMG output type (actually a DD with .dmg file extension). This type is used as default output type when using xmount under Mac OS X. 20120130: v0.4.7 released * Made InitVirtImageInfoFile less picky about missing EWF infos. 20120507: * Added support for VHD output image as requested by various people. * Statically linked libs updated to 20120504 (libewf) and 3.7.0 (afflib). 20120510: v0.5.0 released * Added stbuf->st_blocks calculation for VHD images in function GetVirtFileAttr. This makes Windows not think the emulated file would be a sparse file. Sparse vhd files are not attachable in Windows. 20130726: v0.6.0 released * Added libaaff to replace libaff (thx to Guy Voncken). * Added libdd to replace raw dd input file handling and finally support split dd files (thx to Guy Voncken). 20140311: v0.7.0 released * Added libaewf (thx to Guy Voncken). */ diff --git a/trunk/src/xmount.h b/trunk/src/xmount.h index cb40966..de378cd 100755 --- a/trunk/src/xmount.h +++ b/trunk/src/xmount.h @@ -1,529 +1,513 @@ /******************************************************************************* * xmount Copyright (c) 2008-2012 by Gillen Daniel * * * * xmount is a small tool to "fuse mount" various image formats and enable * * virtual write access. * * * * This program is free software: you can redistribute it and/or modify it * * under the terms of the GNU General Public License as published by the Free * * Software Foundation, either version 3 of the License, or (at your option) * * any later version. * * * * This program is distributed in the hope that it will be useful, but WITHOUT * * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * * more details. * * * * You should have received a copy of the GNU General Public License along with * * this program. If not, see . * *******************************************************************************/ #define FUSE_USE_VERSION 26 #include #include #include #include #undef FALSE #undef TRUE #define FALSE 0 #define TRUE 1 #ifndef __APPLE__ #define FOPEN fopen64 #else // Apple does use fopen for fopen64 too #define FOPEN fopen #endif /* * Constants */ #define IMAGE_INFO_HEADER "The following values have been extracted from " \ "the mounted image file:\n\n" /* * Virtual image types */ typedef enum TVirtImageType { /** Virtual image is a DD file */ TVirtImageType_DD, /** Virtual image is a DMG file */ TVirtImageType_DMG, /** Virtual image is a VDI file */ TVirtImageType_VDI, /** Virtual image is a VMDK file (IDE bus)*/ TVirtImageType_VMDK, /** Virtual image is a VMDK file (SCSI bus)*/ TVirtImageType_VMDKS, /** Virtual image is a VHD file*/ TVirtImageType_VHD } TVirtImageType; /* - * Input image types - */ -typedef enum TOrigImageType { - /** Input image is a DD file */ - TOrigImageType_DD, - /** Input image is an EWF file (use libewf) */ - TOrigImageType_EWF, - /** Input image is an EWF file (use libaewf) */ - TOrigImageType_AEWF, - /** Input image is an AFF file (use libaff) */ - TOrigImageType_AFF, - /** Input image is an AFF file (use libaaff) */ - TOrigImageType_AAFF, -} TOrigImageType; - -/* - * Various mountimg runtime options + * Various xmount runtime options */ typedef struct TXMountConfData { /** Input image type */ - TOrigImageType OrigImageType; + char *p_orig_image_type; /** Virtual image type */ TVirtImageType VirtImageType; /** Enable debug output */ uint32_t Debug; /** Path of virtual image file */ char *pVirtualImagePath; /** Path of virtual VMDK file */ char *pVirtualVmdkPath; /** Path of virtual image info file */ char *pVirtualImageInfoPath; /** Enable virtual write support */ uint32_t Writable; /** Overwrite existing cache */ uint32_t OverwriteCache; /** Cache file to save changes to */ char *pCacheFile; /** Size of input image */ uint64_t OrigImageSize; /** Size of virtual image */ uint64_t VirtImageSize; /** MD5 hash of partial input image */ uint64_t InputHashLo; uint64_t InputHashHi; /** Offset */ uint64_t orig_img_offset; /** lib params */ char *p_lib_params; } TXMountConfData; /* * VDI Binary File Header structure */ #define VDI_FILE_COMMENT "<<< This is a virtual VDI image >>>" #define VDI_HEADER_COMMENT "This VDI was emulated using xmount v" \ PACKAGE_VERSION #define VDI_IMAGE_SIGNATURE 0xBEDA107F // 1:1 copy from hp #define VDI_IMAGE_VERSION 0x00010001 // Vers 1.1 #define VDI_IMAGE_TYPE_FIXED 0x00000002 // Type 2 (fixed size) #define VDI_IMAGE_FLAGS 0 #define VDI_IMAGE_BLOCK_SIZE (1024*1024) // 1 Megabyte typedef struct TVdiFileHeader { // ----- VDIPREHEADER ------ /** Just text info about image type, for eyes only. */ char szFileInfo[64]; /** The image signature (VDI_IMAGE_SIGNATURE). */ uint32_t u32Signature; /** The image version (VDI_IMAGE_VERSION). */ uint32_t u32Version; // ----- VDIHEADER1PLUS ----- /** Size of header structure in bytes. */ uint32_t cbHeader; /** The image type (VDI_IMAGE_TYPE_*). */ uint32_t u32Type; /** Image flags (VDI_IMAGE_FLAGS_*). */ uint32_t fFlags; /** Image comment. (UTF-8) */ char szComment[256]; /** Offset of Blocks array from the begining of image file. * Should be sector-aligned for HDD access optimization. */ uint32_t offBlocks; /** Offset of image data from the begining of image file. * Should be sector-aligned for HDD access optimization. */ uint32_t offData; /** Legacy image geometry (previous code stored PCHS there). */ /** Cylinders. */ uint32_t cCylinders; /** Heads. */ uint32_t cHeads; /** Sectors per track. */ uint32_t cSectors; /** Sector size. (bytes per sector) */ uint32_t cbSector; /** Was BIOS HDD translation mode, now unused. */ uint32_t u32Dummy; /** Size of disk (in bytes). */ uint64_t cbDisk; /** Block size. (For instance VDI_IMAGE_BLOCK_SIZE.) Must be a power of 2! */ uint32_t cbBlock; /** Size of additional service information of every data block. * Prepended before block data. May be 0. * Should be a power of 2 and sector-aligned for optimization reasons. */ uint32_t cbBlockExtra; /** Number of blocks. */ uint32_t cBlocks; /** Number of allocated blocks. */ uint32_t cBlocksAllocated; /** UUID of image. */ uint64_t uuidCreate_l; uint64_t uuidCreate_h; /** UUID of image's last modification. */ uint64_t uuidModify_l; uint64_t uuidModify_h; /** Only for secondary images - UUID of previous image. */ uint64_t uuidLinkage_l; uint64_t uuidLinkage_h; /** Only for secondary images - UUID of previous image's last modification. */ uint64_t uuidParentModify_l; uint64_t uuidParentModify_h; /** Padding to get 512 byte alignment */ uint64_t padding0; uint64_t padding1; uint64_t padding2; uint64_t padding3; uint64_t padding4; uint64_t padding5; uint64_t padding6; } __attribute__ ((packed)) TVdiFileHeader, *pTVdiFileHeader; // /** The way the UUID is declared by the DCE specification. */ // struct // { // uint32_t u32TimeLow; // uint16_t u16TimeMid; // uint16_t u16TimeHiAndVersion; // uint8_t u8ClockSeqHiAndReserved; // uint8_t u8ClockSeqLow; // uint8_t au8Node[6]; // } Gen; /* * VHD Binary File footer structure * * At the time of writing, the specs could be found here: * http://www.microsoft.com/downloads/details.aspx? * FamilyID=C2D03242-2FFB-48EF-A211-F0C44741109E * * Warning: All values are big-endian! */ // #ifdef __LP64__ #define VHD_IMAGE_HVAL_COOKIE 0x78697463656E6F63 // "conectix" #else #define VHD_IMAGE_HVAL_COOKIE 0x78697463656E6F63LL #endif #define VHD_IMAGE_HVAL_FEATURES 0x02000000 #define VHD_IMAGE_HVAL_FILE_FORMAT_VERSION 0x00000100 #ifdef __LP64__ #define VHD_IMAGE_HVAL_DATA_OFFSET 0xFFFFFFFFFFFFFFFF #else #define VHD_IMAGE_HVAL_DATA_OFFSET 0xFFFFFFFFFFFFFFFFLL #endif #define VHD_IMAGE_HVAL_CREATOR_APPLICATION 0x746E6D78 // "xmnt" #define VHD_IMAGE_HVAL_CREATOR_VERSION 0x00000500 // This one is funny! According to VHD specs, I can only choose between Windows // and Macintosh. I'm going to choose the most common one. #define VHD_IMAGE_HVAL_CREATOR_HOST_OS 0x6B326957 // "Win2k" #define VHD_IMAGE_HVAL_DISK_TYPE 0x02000000 // Seconds from January 1st, 1970 to January 1st, 2000 #define VHD_IMAGE_TIME_CONVERSION_OFFSET 0x386D97E0 typedef struct TVhdFileHeader { uint64_t cookie; uint32_t features; uint32_t file_format_version; uint64_t data_offset; uint32_t creation_time; uint32_t creator_app; uint32_t creator_ver; uint32_t creator_os; uint64_t size_original; uint64_t size_current; uint16_t disk_geometry_c; uint8_t disk_geometry_h; uint8_t disk_geometry_s; uint32_t disk_type; uint32_t checksum; uint64_t uuid_l; uint64_t uuid_h; uint8_t saved_state; char Reserved[427]; } __attribute__ ((packed)) TVhdFileHeader, *pTVhdFileHeader; /* * Cache file block index array element */ #ifdef __LP64__ #define CACHE_BLOCK_FREE 0xFFFFFFFFFFFFFFFF #else #define CACHE_BLOCK_FREE 0xFFFFFFFFFFFFFFFFLL #endif typedef struct TCacheFileBlockIndex { /** Set to 1 if block is assigned (This block has data in cache file) */ uint32_t Assigned; /** Offset to data in cache file */ uint64_t off_data; } __attribute__ ((packed)) TCacheFileBlockIndex, *pTCacheFileBlockIndex; /* * Cache file header structures */ #define CACHE_BLOCK_SIZE (1024*1024) // 1 megabyte #ifdef __LP64__ #define CACHE_FILE_SIGNATURE 0xFFFF746E756F6D78 // "xmount\xFF\xFF" #else #define CACHE_FILE_SIGNATURE 0xFFFF746E756F6D78LL #endif #define CUR_CACHE_FILE_VERSION 0x00000002 // Current cache file version #define HASH_AMOUNT (1024*1024)*10 // Amount of data used to construct a // "unique" hash for every input image // (10MByte) // Current header typedef struct TCacheFileHeader { /** Simple signature to identify cache files */ uint64_t FileSignature; /** Cache file version */ uint32_t CacheFileVersion; /** Cache block size */ uint64_t BlockSize; /** Total amount of cache blocks */ uint64_t BlockCount; /** Offset to the first block index array element */ uint64_t pBlockIndex; /** Set to 1 if VDI file header is cached */ uint32_t VdiFileHeaderCached; /** Offset to cached VDI file header */ uint64_t pVdiFileHeader; /** Set to 1 if VMDK file is cached */ uint32_t VmdkFileCached; /** Size of VMDK file */ uint64_t VmdkFileSize; /** Offset to cached VMDK file */ uint64_t pVmdkFile; /** Set to 1 if VHD header is cached */ uint32_t VhdFileHeaderCached; /** Offset to cached VHD header */ uint64_t pVhdFileHeader; /** Padding until offset 512 to ease further additions */ char HeaderPadding[432]; } __attribute__ ((packed)) TCacheFileHeader, *pTCacheFileHeader; // Old v1 header typedef struct TCacheFileHeader_v1 { /** Simple signature to identify cache files */ uint64_t FileSignature; /** Cache file version */ uint32_t CacheFileVersion; /** Total amount of cache blocks */ uint64_t BlockCount; /** Offset to the first block index array element */ uint64_t pBlockIndex; /** Set to 1 if VDI file header is cached */ uint32_t VdiFileHeaderCached; /** Offset to cached VDI file header */ uint64_t pVdiFileHeader; /** Set to 1 if VMDK file is cached */ } TCacheFileHeader_v1, *pTCacheFileHeader_v1; /* * Macros to ease debugging and error reporting */ #define LOG_ERROR(...) \ LogMessage("ERROR",(char*)__FUNCTION__,__LINE__,__VA_ARGS__); #define LOG_WARNING(...) \ LogMessage("WARNING",(char*)__FUNCTION__,__LINE__,__VA_ARGS__); #define LOG_DEBUG(...) { \ if(XMountConfData.Debug) \ LogMessage("DEBUG",(char*)__FUNCTION__,__LINE__,__VA_ARGS__); \ } /* * Macros to alloc or realloc memory and check whether it worked */ #define XMOUNT_MALLOC(var,var_type,size) { \ (var)=(var_type)malloc(size); \ if((var)==NULL) { \ LOG_ERROR("Couldn't allocate memmory!\n"); \ exit(1); \ } \ } #define XMOUNT_REALLOC(var,var_type,size) { \ (var)=(var_type)realloc((var),size); \ if((var)==NULL) { \ LOG_ERROR("Couldn't allocate memmory!\n"); \ exit(1); \ } \ } /* * Macros for some often used string functions */ #define XMOUNT_STRSET(var1,var2) { \ XMOUNT_MALLOC(var1,char*,strlen(var2)+1) \ strcpy(var1,var2); \ } #define XMOUNT_STRNSET(var1,var2,size) { \ XMOUNT_MALLOC(var1,char*,(size)+1) \ strncpy(var1,var2,size); \ (var1)[size]='\0'; \ } #define XMOUNT_STRAPP(var1,var2) { \ XMOUNT_REALLOC(var1,char*,strlen(var1)+strlen(var2)+1) \ strcpy((var1)+strlen(var1),var2); \ } #define XMOUNT_STRNAPP(var1,var2,size) { \ XMOUNT_REALLOC(var1,char*,strlen(var1)+(size)+1) \ (var1)[strlen(var1)+(size)]='\0'; \ strncpy((var1)+strlen(var1),var2,size); \ } /* * Macros for endian conversions */ // First we need to have the bswap functions #if HAVE_BYTESWAP_H #include #elif defined(HAVE_ENDIAN_H) #include #elif defined(__APPLE__) #include #define bswap_16 OSSwapInt16 #define bswap_32 OSSwapInt32 #define bswap_64 OSSwapInt64 #else #define bswap_16(value) { \ ((((value) & 0xff) << 8) | ((value) >> 8)) \ } #define bswap_32(value) { \ (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \ (uint32_t)bswap_16((uint16_t)((value) >> 16))) \ } #define bswap_64(value) { \ (((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) << 32) | \ (uint64_t)bswap_32((uint32_t)((value) >> 32))) \ } #endif // Next we need to know what endianess is used #if defined(__LITTLE_ENDIAN__) #define XMOUNT_BYTEORDER_LE #elif defined(__BIG_ENDIAN__) #define XMOUNT_BYTEORDER_BE #elif defined(__BYTE_ORDER__) #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ #define XMOUNT_BYTEORDER_LE #else #define XMOUNT_BYTEORDER_BE #endif #endif // And finally we can define the macros #ifdef XMOUNT_BYTEORDER_LE #ifndef be16toh #define be16toh(x) bswap_16(x) #endif #ifndef htobe16 #define htobe16(x) bswap_16(x) #endif #ifndef be32toh #define be32toh(x) bswap_32(x) #endif #ifndef htobe32 #define htobe32(x) bswap_32(x) #endif #ifndef be64toh #define be64toh(x) bswap_64(x) #endif #ifndef htobe64 #define htobe64(x) bswap_64(x) #endif #ifndef le16toh #define le16toh(x) (x) #endif #ifndef htole16 #define htole16(x) (x) #endif #ifndef le32toh #define le32toh(x) (x) #endif #ifndef htole32 #define htole32(x) (x) #endif #ifndef le64toh #define le64toh(x) (x) #endif #ifndef htole64 #define htole64(x) (x) #endif #else #ifndef be16toh #define be16toh(x) (x) #endif #ifndef htobe16 #define htobe16(x) (x) #endif #ifndef be32toh #define be32toh(x) (x) #endif #ifndef htobe32 #define htobe32(x) (x) #endif #ifndef be64toh #define be64toh(x) (x) #endif #ifndef htobe64 #define htobe64(x) (x) #endif #ifndef le16toh #define le16toh(x) bswap_16(x) #endif #ifndef htole16 #define htole16(x) bswap_16(x) #endif #ifndef le32toh #define le32toh(x) bswap_32(x) #endif #ifndef htole32 #define htole32(x) bswap_32(x) #endif #ifndef le64toh #define le64toh(x) bswap_64(x) #endif #ifndef htole64 #define htole64(x) bswap_64(x) #endif #endif /* ----- Change history ----- 20090226: * Added change history information to this file. * Added TVirtImageType enum to identify virtual image type. * Added TOrigImageType enum to identify input image type. * Added TMountimgConfData struct to hold various mountimg runtime options. * Renamed VDIFILEHEADER to TVdiFileHeader. 20090228: * Added LOG_ERROR and LOG_DEBUG macros * Added defines for various static VDI header values * Added defines for TRUE and FALSE 20090307: * Added defines for various static cache file header values * Added VdiFileHeaderCached and pVdiFileHeader values to be able to cache the VDI file header separatly. 20090519: * Added new cache file header structure and moved old one to TCacheFileHeader_v1. * New cache file structure includes VmdkFileCached and pVmdkFile to cache virtual VMDK file and makes room for further additions so current cache file version 2 cache files can be easily converted to newer ones. 20090814: * Added XMOUNT_MALLOC and XMOUNT_REALLOC macros. 20090816: * Added XMOUNT_STRSET, XMOUNT_STRNSET, XMOUNT_STRAPP and XMOUNT_STRNAPP macros. 20100324: * Added "__attribute__ ((packed))" to all header structs to prevent different sizes on i386 and amd64. 20111109: * Added TVirtImageType_DMG type. 20120130: * Added LOG_WARNING macro. 20120507: * Added TVhdFileHeader structure. 20120511: * Added endianess conversation macros */