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diff --git a/src/xmount.c b/src/xmount.c
index 66f09a7..c0c9aee 100755
--- a/src/xmount.c
+++ b/src/xmount.c
@@ -1,4448 +1,3411 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* 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 <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <inttypes.h> // For PRI*
#include <errno.h>
#include <dlfcn.h> // For dlopen, dlclose, dlsym
#include <dirent.h> // For opendir, readdir, closedir
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h> // For fstat
#include <sys/types.h>
#ifdef HAVE_LINUX_FS_H
#include <linux/fs.h> // For SEEK_* ??
#endif
#if !defined(__APPLE__) && defined(HAVE_GRP_H) && defined(HAVE_PWD_H)
#include <grp.h> // For getgrnam, struct group
#include <pwd.h> // For getpwuid, struct passwd
#endif
#include <pthread.h>
#include <time.h> // For time
#define FUSE_USE_VERSION 26
#include <fuse.h>
#include <gidafs.h>
#include "xmount.h"
#include "md5.h"
#include "macros.h"
#include "../libxmount/libxmount.h"
#define XMOUNT_COPYRIGHT_NOTICE \
"xmount v%s Copyright (c) 2008-2016 by Gillen Daniel <gillen.dan@pinguin.lu>"
#define LOG_WARNING(...) { \
LIBXMOUNT_LOG_WARNING(__VA_ARGS__); \
}
#define LOG_ERROR(...) { \
LIBXMOUNT_LOG_ERROR(__VA_ARGS__); \
}
#define LOG_DEBUG(...) { \
LIBXMOUNT_LOG_DEBUG(glob_xmount.debug,__VA_ARGS__); \
}
/*******************************************************************************
* Global vars
******************************************************************************/
//! Struct that contains various runtime configuration options
static ts_XmountData glob_xmount;
/*******************************************************************************
* Forward declarations
******************************************************************************/
// Helper functions
static void PrintUsage(char*);
static void CheckFuseSettings();
static int ParseCmdLine(const int, char**);
-static int ExtractVirtFileNames(char*);
-static int GetMorphedImageSize(uint64_t*);
-static int GetVirtImageSize(uint64_t*);
-static int GetInputImageData(pts_InputImage, char*, off_t, size_t, size_t*);
-static int GetMorphedImageData(char*, off_t, size_t, size_t*);
-static int GetVirtImageData(char*, off_t, size_t);
-static int SetVdiFileHeaderData(char*, off_t, size_t);
-static int SetVhdFileHeaderData(char*, off_t, size_t);
-static int SetVirtImageData(const char*, off_t, size_t);
+
+static int ExtractOutputFileNames(char*);
static int CalculateInputImageHash(uint64_t*, uint64_t*);
-static int InitVirtVdiHeader();
-static int InitVirtVhdHeader();
-static int InitVirtualVmdkFile();
-static int InitVirtImageInfoFile();
+
+static int GetInputImageData(pts_InputImage, char*, off_t, size_t, size_t*);
+
+static int GetMorphedImageSize(uint64_t*);
+static int ReadMorphedImageData(char*, off_t, size_t, size_t*);
+static int WriteMorphedImageData(const char*, off_t, size_t, size_t*);
+
+static int GetOutputImageSize(uint64_t*);
+static int ReadOutputImageData(char*, off_t, size_t);
+static int WriteOutputImageData(const char*, off_t, size_t);
+
+static int InitInfoFile();
+
static int InitCacheFile();
static int LoadLibs();
static int FindInputLib(pts_InputImage);
static int FindMorphingLib();
static int FindOutputLib();
static void InitResources();
static void FreeResources();
static int SplitLibraryParameters(char*, uint32_t*, pts_LibXmountOptions**);
// Functions exported to LibXmount_Morphing
static int LibXmount_Morphing_ImageCount(uint64_t*);
static int LibXmount_Morphing_Size(uint64_t, uint64_t*);
static int LibXmount_Morphing_Read(uint64_t, char*, off_t, size_t, size_t*);
// Functions exported to LibXmount_Output
static int LibXmount_Output_Size(uint64_t*);
static int LibXmount_Output_Read(char*, off_t, size_t, size_t*);
static int LibXmount_Output_Write(char*, off_t, size_t, size_t*);
// Functions implementing FUSE functions
static int FuseGetAttr(const char*, struct stat*);
static int FuseMkDir(const char*, mode_t);
static int FuseMkNod(const char*, mode_t, dev_t);
static int FuseReadDir(const char*,
void*,
fuse_fill_dir_t,
off_t,
struct fuse_file_info*);
static int FuseOpen(const char*, struct fuse_file_info*);
static int FuseRead(const char*, char*, size_t, off_t, struct fuse_file_info*);
static int FuseRename(const char*, const char*);
static int FuseRmDir(const char*);
static int FuseUnlink(const char*);
//static int FuseStatFs(const char*, struct statvfs*);
static int FuseWrite(const char *p_path,
const char*,
size_t,
off_t,
struct fuse_file_info*);
/*******************************************************************************
* Helper functions
******************************************************************************/
//! Print usage instructions (cmdline options etc..)
/*!
* \param p_prog_name Program name (argv[0])
*/
static void PrintUsage(char *p_prog_name) {
char *p_buf;
int first;
int ret;
printf("\n" XMOUNT_COPYRIGHT_NOTICE "\n",XMOUNT_VERSION);
printf("\nUsage:\n");
printf(" %s [fopts] <xopts> <mntp>\n\n",p_prog_name);
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 <fopts> : Specify fuse mount options. Will also disable "
"automatic addition of FUSE's allow_other option!\n");
printf("\n");
printf(" xopts:\n");
printf(" --cache <cfile> : Enable virtual write support.\n");
printf(" <cfile> specifies the cache file to use.\n");
printf(" --in <itype> <ifile> : Input image format and source file(s). "
"May be specified multiple times.\n");
printf(" <itype> can be ");
// List supported input formats
first=1;
for(uint32_t i=0;i<glob_xmount.input.libs_count;i++) {
p_buf=glob_xmount.input.pp_libs[i]->p_supported_input_types;
while(*p_buf!='\0') {
if(first==1) {
printf("\"%s\"",p_buf);
first=0;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
}
printf(".\n");
printf(" <ifile> specifies the source file. If your image is split into "
"multiple files, you have to specify them all!\n");
printf(" --inopts <iopts> : Specify input library specific options.\n");
printf(" <iopts> specifies a comma separated list of key=value options. "
"See below for details.\n");
printf(" --info : Print out infos about used compiler and libraries.\n");
printf(" --morph <mtype> : Morphing function to apply to input image(s). "
"If not specified, defaults to \"combine\".\n");
printf(" <mtype> can be ");
// List supported morphing functions
first=1;
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
p_buf=glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types;
while(*p_buf!='\0') {
if(first==1) {
printf("\"%s\"",p_buf);
first=0;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
}
printf(".\n");
printf(" --morphopts <mopts> : Specify morphing library specific "
"options.\n");
printf(" <mopts> specifies a comma separated list of key=value options. "
"See below for details.\n");
printf(" --offset <off> : Move the output image data start <off> bytes "
"into the input image(s).\n");
printf(" --out <otype> : Output image format. If not specified, "
"defaults to ");
#ifdef __APPLE__
printf("\"dmg\".\n");
#else
printf("\"raw\".\n");
#endif
printf(" <otype> can be ");
// List supported output formats
first=1;
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
p_buf=glob_xmount.output.pp_libs[i]->p_supported_output_formats;
while(*p_buf!='\0') {
if(first==1) {
printf("\"%s\"",p_buf);
first=0;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
}
printf(".\n");
printf(" --outopts <oopts> : Specify output library specific "
"options.\n");
printf(" --owcache <file> : Same as --cache <file> but overwrites "
"existing cache file.\n");
printf(" --sizelimit <size> : The data end of input image(s) is set to no "
"more than <size> bytes after the data start.\n");
printf(" --version : Same as --info.\n");
printf("\n");
printf(" mntp:\n");
printf(" Mount point where output image should be located.\n");
printf("\n");
printf("Infos:\n");
printf(" * One --in option and a mount point are mandatory!\n");
printf(" * If you specify --in multiple times, data from all images is "
"morphed into one output image using the specified morphing "
"function.\n");
printf(" * For VMDK emulation, you have to uncomment \"user_allow_other\" "
"in /etc/fuse.conf or run xmount as root.\n");
printf("\n");
printf("Input / Morphing library specific options:\n");
printf(" Input / Morphing libraries might support an own set of "
"options to configure / tune their behaviour.\n");
printf(" Libraries supporting this feature (if any) and their "
"options are listed below.\n");
printf("\n");
// List input, morphing and output lib options
for(uint32_t i=0;i<glob_xmount.input.libs_count;i++) {
ret=glob_xmount.input.pp_libs[i]->
lib_functions.OptionsHelp((const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get options help for library '%s': %s!\n",
glob_xmount.input.pp_libs[i]->p_name,
glob_xmount.input.pp_libs[i]->
lib_functions.GetErrorMessage(ret));
}
if(p_buf==NULL) continue;
printf(" - %s\n",glob_xmount.input.pp_libs[i]->p_name);
printf("%s",p_buf);
printf("\n");
ret=glob_xmount.input.pp_libs[i]->lib_functions.FreeBuffer(p_buf);
if(ret!=0) {
LOG_ERROR("Unable to free options help text from library '%s': %s!\n",
glob_xmount.input.pp_libs[i]->p_name,
glob_xmount.input.pp_libs[i]->
lib_functions.GetErrorMessage(ret));
}
}
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
ret=glob_xmount.morphing.pp_libs[i]->
lib_functions.OptionsHelp((const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get options help for library '%s': %s!\n",
glob_xmount.morphing.pp_libs[i]->p_name,
glob_xmount.morphing.pp_libs[i]->
lib_functions.GetErrorMessage(ret));
}
if(p_buf==NULL) continue;
printf(" - %s\n",glob_xmount.morphing.pp_libs[i]->p_name);
printf("%s",p_buf);
printf("\n");
}
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
ret=glob_xmount.output.pp_libs[i]->
lib_functions.OptionsHelp((const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get options help for library '%s': %s!\n",
glob_xmount.output.pp_libs[i]->p_name,
glob_xmount.output.pp_libs[i]->
lib_functions.GetErrorMessage(ret));
}
if(p_buf==NULL) continue;
printf(" - %s\n",glob_xmount.output.pp_libs[i]->p_name);
printf("%s",p_buf);
printf("\n");
}
}
//! Check fuse settings
/*!
* 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.
*
* In addition, this function also checks if the user is member of the fuse
* group which is generally needed to use fuse at all.
*/
static void CheckFuseSettings() {
#if !defined(__APPLE__) && defined(HAVE_GRP_H) && defined(HAVE_PWD_H)
struct group *p_group;
struct passwd *p_passwd;
#endif
int found;
FILE *h_fuse_conf;
char line[256];
glob_xmount.may_set_fuse_allow_other=FALSE;
if(geteuid()==0) {
// Running as root, there should be no problems
glob_xmount.may_set_fuse_allow_other=TRUE;
return;
}
#if !defined(__APPLE__) && defined(HAVE_GRP_H) && defined(HAVE_PWD_H)
// Check if a fuse group exists and if so, make sure user is a member of it.
// Makes only sense on Linux because as far as I know osxfuse has no own group
p_group=getgrnam("fuse");
if(p_group!=NULL) {
// Get effective user name
p_passwd=getpwuid(geteuid());
if(p_passwd==NULL) {
printf("\nWARNING: Unable to determine your effective user name. If "
"mounting works, you can ignore this message.\n\n");
return;
}
// Check if user is member of fuse group
found=FALSE;
while(*(p_group->gr_mem)!=NULL) {
if(strcmp(*(p_group->gr_mem),p_passwd->pw_name)==0) {
found=TRUE;
break;
}
p_group->gr_mem++;
}
if(found==FALSE) {
printf("\nWARNING: You are not a member of the \"fuse\" group. This will "
"prevent you from mounting images using xmount. Please add "
"yourself to the \"fuse\" group using the command "
"\"sudo usermod -a -G fuse %s\" and reboot your system or "
"execute xmount as root.\n\n",
p_passwd->pw_name);
return;
}
} else {
printf("\nWARNING: Your system does not seem to have a \"fuse\" group. If "
"mounting works, you can ignore this message.\n\n");
}
#endif
// Read FUSE's config file /etc/fuse.conf and check for set user_allow_other
h_fuse_conf=(FILE*)FOPEN("/etc/fuse.conf","r");
if(h_fuse_conf!=NULL) {
// Search conf file for set user_allow_others
found=FALSE;
while(fgets(line,sizeof(line),h_fuse_conf)!=NULL) {
// TODO: This works as long as there is no other parameter beginning with
// "user_allow_other" :)
if(strncmp(line,"user_allow_other",16)==0) {
found=TRUE;
break;
}
}
fclose(h_fuse_conf);
if(found==TRUE) {
glob_xmount.may_set_fuse_allow_other=TRUE;
} else {
printf("\nWARNING: 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\n");
}
} else {
printf("\nWARNING: Unable to open /etc/fuse.conf. If mounting works, you "
"can ignore this message. If you encounter issues, please create "
"the file and add a single line containing the string "
"\"user_allow_other\" or execute xmount as root.\n\n");
return;
}
}
//! Parse command line options
/*!
* \param argc Number of cmdline params
* \param pp_argv Array containing cmdline params
* \return TRUE on success, FALSE on error
*/
-#define SUPPORT_DEPRECATED_IN 1
static int ParseCmdLine(const int argc, char **pp_argv) {
int i=1;
int FuseMinusOControl=TRUE;
int FuseAllowOther=TRUE;
int first;
char *p_buf;
pts_InputImage p_input_image=NULL;
int ret;
-#ifdef SUPPORT_DEPRECATED_IN
- int use_old_in_syntax=FALSE;
-#endif
// add pp_argv[0] to FUSE's argv
XMOUNT_MALLOC(glob_xmount.pp_fuse_argv,char**,sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[0],pp_argv[0]);
glob_xmount.fuse_argc=1;
// Parse options
while(i<argc && *pp_argv[i]=='-') {
if(strlen(pp_argv[i])>1 && *(pp_argv[i]+1)!='-') {
// Options beginning with one - are mostly FUSE specific
if(strcmp(pp_argv[i],"-d")==0) {
// Enable FUSE's and xmount's debug mode
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
pp_argv[i])
glob_xmount.fuse_argc++;
glob_xmount.debug=TRUE;
} else if(strcmp(pp_argv[i],"-h")==0) {
// Print help message
PrintUsage(pp_argv[0]);
exit(0);
} else if(strcmp(pp_argv[i],"-o")==0) {
// Next parameter specifies fuse mount options
if((i+1)<argc) {
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(pp_argv[i],"no_allow_other")!=0) {
glob_xmount.fuse_argc+=2;
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
glob_xmount.fuse_argc*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-2],
pp_argv[i-1]);
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
pp_argv[i]);
FuseMinusOControl=FALSE;
} else FuseAllowOther=FALSE;
} else {
LOG_ERROR("Couldn't parse fuse mount options!\n")
return FALSE;
}
} else if(strcmp(pp_argv[i],"-s")==0) {
// Enable FUSE's single threaded mode
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
pp_argv[i]);
glob_xmount.fuse_argc++;
} else if(strcmp(pp_argv[i],"-V")==0) {
// Display FUSE version info
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
pp_argv[i]);
glob_xmount.fuse_argc++;
} else {
LOG_ERROR("Unknown command line option \"%s\"\n",pp_argv[i]);
return FALSE;
}
} else {
// Options beginning with -- are xmount specific
if(strcmp(pp_argv[i],"--cache")==0 /*|| strcmp(pp_argv[i],"--rw")==0*/) {
// Emulate writable access to mounted image
// Next parameter must be cache file to read/write changes from/to
if((i+1)<argc) {
i++;
XMOUNT_STRSET(glob_xmount.cache.p_cache_file,pp_argv[i])
glob_xmount.output.writable=TRUE;
} else {
LOG_ERROR("You must specify a cache file!\n")
return FALSE;
}
LOG_DEBUG("Enabling virtual write support using cache file \"%s\"\n",
glob_xmount.cache.p_cache_file)
} else if(strcmp(pp_argv[i],"--in")==0) {
// Specify input image type and source files
-#ifdef SUPPORT_DEPRECATED_IN
- if(use_old_in_syntax==TRUE) {
- LOG_ERROR("When using the deprecated --in option syntax, it is not "
- "possible to specify --in multiple times!\n");
- free(p_input_image->p_type);
- free(p_input_image);
- return FALSE;
- }
-#endif
if((i+2)<argc) {
i++;
// Alloc and init new ts_InputImage struct
XMOUNT_MALLOC(p_input_image,pts_InputImage,sizeof(ts_InputImage));
XMOUNT_STRSET(p_input_image->p_type,pp_argv[i]);
p_input_image->pp_files=NULL;
p_input_image->p_functions=NULL;
p_input_image->p_handle=NULL;
// Parse input image filename(s) and add to p_input_image->pp_files
i++;
p_input_image->files_count=0;
while(i<(argc-1) && strncmp(pp_argv[i],"--",2)!=0) {
p_input_image->files_count++;
XMOUNT_REALLOC(p_input_image->pp_files,
char**,
p_input_image->files_count*sizeof(char*));
XMOUNT_STRSET(p_input_image->pp_files[p_input_image->files_count-1],
pp_argv[i]);
i++;
}
i--;
if(p_input_image->files_count==0) {
-#ifndef SUPPORT_DEPRECATED_IN
LOG_ERROR("No input files specified for \"--in %s\"!\n",
p_input_image->p_type)
free(p_input_image->p_type);
free(p_input_image);
return FALSE;
-#else
- use_old_in_syntax=TRUE;
- i++;
- continue;
-#endif
}
// Add input image struct to input image array
glob_xmount.input.images_count++;
XMOUNT_REALLOC(glob_xmount.input.pp_images,
pts_InputImage*,
glob_xmount.input.images_count*
sizeof(pts_InputImage));
glob_xmount.input.pp_images[glob_xmount.input.images_count-1]=
p_input_image;
} else {
LOG_ERROR("You must specify an input image type and source file!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--inopts")==0) {
// Set input lib options
if((i+1)<argc) {
i++;
if(glob_xmount.input.pp_lib_params==NULL) {
if(SplitLibraryParameters(pp_argv[i],
&(glob_xmount.input.lib_params_count),
&(glob_xmount.input.pp_lib_params)
)==FALSE)
{
LOG_ERROR("Unable to parse input library options '%s'!\n",
pp_argv[i]);
return FALSE;
}
} else {
LOG_ERROR("You can only specify --inopts once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify special options!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--morph")==0) {
// Set morphing lib to use
if((i+1)<argc) {
i++;
if(glob_xmount.morphing.p_morph_type==NULL) {
XMOUNT_STRSET(glob_xmount.morphing.p_morph_type,pp_argv[i]);
} else {
LOG_ERROR("You can only specify --morph once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify morphing type!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--morphopts")==0) {
// Set morphing lib options
if((i+1)<argc) {
i++;
if(glob_xmount.morphing.pp_lib_params==NULL) {
if(SplitLibraryParameters(pp_argv[i],
&(glob_xmount.morphing.lib_params_count),
&(glob_xmount.morphing.pp_lib_params)
)==FALSE)
{
LOG_ERROR("Unable to parse morphing library options '%s'!\n",
pp_argv[i]);
return FALSE;
}
} else {
LOG_ERROR("You can only specify --morphopts once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify special morphing lib params!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--offset")==0) {
// Set input image offset
if((i+1)<argc) {
i++;
glob_xmount.input.image_offset=StrToUint64(pp_argv[i],&ret);
if(ret==0) {
LOG_ERROR("Unable to convert '%s' to a number!\n",pp_argv[i])
return FALSE;
}
} else {
LOG_ERROR("You must specify an offset!\n")
return FALSE;
}
LOG_DEBUG("Setting input image offset to \"%" PRIu64 "\"\n",
glob_xmount.input.image_offset)
} else if(strcmp(pp_argv[i],"--out")==0) {
// Set output lib to use
if((i+1)<argc) {
i++;
if(glob_xmount.output.p_output_format==NULL) {
XMOUNT_STRSET(glob_xmount.output.p_output_format,pp_argv[i]);
} else {
LOG_ERROR("You can only specify --out once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify an output format!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--outopts")==0) {
// Set output lib options
if((i+1)<argc) {
i++;
if(glob_xmount.output.pp_lib_params==NULL) {
if(SplitLibraryParameters(pp_argv[i],
&(glob_xmount.output.lib_params_count),
&(glob_xmount.output.pp_lib_params)
)==FALSE)
{
LOG_ERROR("Unable to parse output library options '%s'!\n",
pp_argv[i]);
return FALSE;
}
} else {
LOG_ERROR("You can only specify --outopts once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify special output lib params!\n");
return FALSE;
}
} else if(strcmp(pp_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((i+1)<argc) {
i++;
XMOUNT_STRSET(glob_xmount.cache.p_cache_file,pp_argv[i])
glob_xmount.output.writable=TRUE;
glob_xmount.cache.overwrite_cache=TRUE;
} else {
LOG_ERROR("You must specify a cache file!\n")
return FALSE;
}
LOG_DEBUG("Enabling virtual write support overwriting cache file %s\n",
glob_xmount.cache.p_cache_file)
} else if(strcmp(pp_argv[i],"--sizelimit")==0) {
// Set input image size limit
if((i+1)<argc) {
i++;
glob_xmount.input.image_size_limit=StrToUint64(pp_argv[i],&ret);
if(ret==0) {
LOG_ERROR("Unable to convert '%s' to a number!\n",pp_argv[i])
return FALSE;
}
} else {
LOG_ERROR("You must specify a size limit!\n")
return FALSE;
}
LOG_DEBUG("Setting input image size limit to \"%" PRIu64 "\"\n",
glob_xmount.input.image_size_limit)
} else if(strcmp(pp_argv[i],"--version")==0 ||
strcmp(pp_argv[i],"--info")==0)
{
// Print xmount info
printf(XMOUNT_COPYRIGHT_NOTICE "\n\n",XMOUNT_VERSION);
#ifdef __GNUC__
printf(" compile timestamp: %s %s\n",__DATE__,__TIME__);
printf(" gcc version: %s\n",__VERSION__);
#endif
printf(" loaded input libraries:\n");
for(uint32_t ii=0;ii<glob_xmount.input.libs_count;ii++) {
printf(" - %s supporting ",glob_xmount.input.pp_libs[ii]->p_name);
p_buf=glob_xmount.input.pp_libs[ii]->p_supported_input_types;
first=TRUE;
while(*p_buf!='\0') {
if(first) {
printf("\"%s\"",p_buf);
first=FALSE;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
printf("\n");
}
printf(" loaded morphing libraries:\n");
for(uint32_t ii=0;ii<glob_xmount.morphing.libs_count;ii++) {
printf(" - %s supporting ",
glob_xmount.morphing.pp_libs[ii]->p_name);
p_buf=glob_xmount.morphing.pp_libs[ii]->p_supported_morphing_types;
first=TRUE;
while(*p_buf!='\0') {
if(first) {
printf("\"%s\"",p_buf);
first=FALSE;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
printf("\n");
}
+ printf(" loaded output libraries:\n");
+ for(uint32_t ii=0;ii<glob_xmount.output.libs_count;ii++) {
+ printf(" - %s supporting ",
+ glob_xmount.output.pp_libs[ii]->p_name);
+ p_buf=glob_xmount.output.pp_libs[ii]->p_supported_output_formats;
+ first=TRUE;
+ while(*p_buf!='\0') {
+ if(first) {
+ printf("\"%s\"",p_buf);
+ first=FALSE;
+ } else printf(", \"%s\"",p_buf);
+ p_buf+=(strlen(p_buf)+1);
+ }
+ printf("\n");
+ }
printf("\n");
exit(0);
} else {
LOG_ERROR("Unknown command line option \"%s\"\n",pp_argv[i]);
return FALSE;
}
}
i++;
}
-#ifdef SUPPORT_DEPRECATED_IN
- if(use_old_in_syntax==TRUE && i<(argc-1)) {
- LOG_WARNING("You are using a deprecated --in option syntax which will be "
- "removed in the next release. Please see the man page "
- "on how to use the new syntax.\n");
- while(i<(argc-1)) {
- p_input_image->files_count++;
- XMOUNT_REALLOC(p_input_image->pp_files,
- char**,
- p_input_image->files_count*sizeof(char*));
- XMOUNT_STRSET(p_input_image->pp_files[p_input_image->files_count-1],
- pp_argv[i]);
- i++;
- }
- // Add input image struct to input image array
- glob_xmount.input.images_count++;
- XMOUNT_REALLOC(glob_xmount.input.pp_images,
- pts_InputImage*,
- glob_xmount.input.images_count*sizeof(pts_InputImage));
- glob_xmount.input.pp_images[glob_xmount.input.images_count-1]=p_input_image;
- } else if(use_old_in_syntax==TRUE) {
- free(p_input_image->p_type);
- free(p_input_image);
- LOG_ERROR("You must specify an input image type, source file(s) and a "
- "mount point!\n");
- return FALSE;
- }
-#endif
-
// Extract mountpoint
if(i==(argc-1)) {
XMOUNT_STRSET(glob_xmount.p_mountpoint,pp_argv[argc-1])
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
glob_xmount.p_mountpoint);
glob_xmount.fuse_argc++;
} else {
LOG_ERROR("No mountpoint specified!\n")
return FALSE;
}
if(FuseMinusOControl==TRUE) {
// We control the -o flag, set subtype, fsname and allow_other options
glob_xmount.fuse_argc+=2;
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
glob_xmount.fuse_argc*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-2],"-o");
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
"subtype=xmount");
if(glob_xmount.input.images_count!=0) {
// Set name of first source file as fsname
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
",fsname='");
// If possible, use full path
p_buf=realpath(glob_xmount.input.pp_images[0]->pp_files[0],NULL);
if(p_buf==NULL) {
XMOUNT_STRSET(p_buf,glob_xmount.input.pp_images[0]->pp_files[0]);
}
// Make sure fsname does not include some forbidden chars
for(uint32_t i=0;i<strlen(p_buf);i++) {
if(p_buf[i]=='\'') p_buf[i]='_';
}
// Set fsname
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
p_buf);
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
"'");
free(p_buf);
}
if(FuseAllowOther==TRUE) {
// Add "allow_other" option if allowed
if(glob_xmount.may_set_fuse_allow_other) {
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
",allow_other");
}
}
}
return TRUE;
}
-//! Extract virtual file name from input image name
+//! Extract output file name from input image name
/*!
* \param p_orig_name Name of input image (may include a path)
* \return TRUE on success, FALSE on error
*/
-static int ExtractVirtFileNames(char *p_orig_name) {
+static int ExtractOutputFileNames(char *p_orig_name) {
char *tmp;
// Truncate any leading path
tmp=strrchr(p_orig_name,'/');
if(tmp!=NULL) p_orig_name=tmp+1;
// Extract file extension
tmp=strrchr(p_orig_name,'.');
// Set leading '/'
XMOUNT_STRSET(glob_xmount.output.p_virtual_image_path,"/");
XMOUNT_STRSET(glob_xmount.output.p_info_path,"/");
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- XMOUNT_STRSET(glob_xmount.output.vmdk.p_virtual_vmdk_path,"/");
- }
// Copy filename
if(tmp==NULL) {
// Input image filename has no extension
XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,p_orig_name);
XMOUNT_STRAPP(glob_xmount.output.p_info_path,p_orig_name);
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- XMOUNT_STRAPP(glob_xmount.output.vmdk.p_virtual_vmdk_path,p_orig_name);
- }
XMOUNT_STRAPP(glob_xmount.output.p_info_path,".info");
} else {
XMOUNT_STRNAPP(glob_xmount.output.p_virtual_image_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp));
XMOUNT_STRNAPP(glob_xmount.output.p_info_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp));
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- XMOUNT_STRNAPP(glob_xmount.output.vmdk.p_virtual_vmdk_path,p_orig_name,
- strlen(p_orig_name)-strlen(tmp));
- }
XMOUNT_STRAPP(glob_xmount.output.p_info_path,".info");
}
// Add virtual file extensions
- switch(glob_xmount.output.VirtImageType) {
- case VirtImageType_DD:
- XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".dd");
- break;
- case VirtImageType_DMG:
- XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".dmg");
- break;
- case VirtImageType_VDI:
- XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".vdi");
- break;
- case VirtImageType_VHD:
- XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".vhd");
- break;
- case VirtImageType_VMDK:
- case VirtImageType_VMDKS:
- XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".dd");
- XMOUNT_STRAPP(glob_xmount.output.vmdk.p_virtual_vmdk_path,".vmdk");
- break;
- default:
- LOG_ERROR("Unknown virtual image type!\n")
- return FALSE;
- }
+ // TODO: Get from output lib and add
+ //XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".dd");
LOG_DEBUG("Set virtual image name to \"%s\"\n",
glob_xmount.output.p_virtual_image_path);
LOG_DEBUG("Set virtual image info name to \"%s\"\n",
glob_xmount.output.p_info_path);
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- LOG_DEBUG("Set virtual vmdk name to \"%s\"\n",
- glob_xmount.output.vmdk.p_virtual_vmdk_path);
- }
return TRUE;
}
//! Get size of morphed image
/*!
* \param p_size Buf to save size to
* \return TRUE on success, FALSE on error
*/
static int GetMorphedImageSize(uint64_t *p_size) {
int ret;
ret=glob_xmount.morphing.p_functions->Size(glob_xmount.morphing.p_handle,
p_size);
if(ret!=0) {
LOG_ERROR("Unable to get morphed image size: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
return FALSE;
}
return TRUE;
}
-//! Get size of virtual image
+//! Get size of output image
/*!
* \param p_size Pointer to an uint64_t to which the size will be written to
* \return TRUE on success, FALSE on error
*/
-static int GetVirtImageSize(uint64_t *p_size) {
+static int GetOutputImageSize(uint64_t *p_size) {
+ int ret;
+ uint64_t output_image_size=0;
+
if(glob_xmount.output.image_size!=0) {
*p_size=glob_xmount.output.image_size;
return TRUE;
}
- switch(glob_xmount.output.VirtImageType) {
- case VirtImageType_DD:
- case VirtImageType_DMG:
- case VirtImageType_VMDK:
- case VirtImageType_VMDKS:
- // Virtual image is a DD, DMG or VMDK file. Just return the size of the
- // original image
- if(!GetMorphedImageSize(p_size)) {
- LOG_ERROR("Couldn't get size of input image!\n")
- return FALSE;
- }
- break;
- case VirtImageType_VDI:
- // Virtual image is a VDI file. Get size of original image and add size
- // of VDI header etc.
- if(!GetMorphedImageSize(p_size)) {
- LOG_ERROR("Couldn't get size of input image!\n")
- return FALSE;
- }
- (*p_size)+=(sizeof(ts_VdiFileHeader)+
- glob_xmount.output.vdi.vdi_block_map_size);
- break;
- case VirtImageType_VHD:
- // Virtual image is a VHD file. Get size of original image and add size
- // of VHD footer.
- if(!GetMorphedImageSize(p_size)) {
- LOG_ERROR("Couldn't get size of input image!\n")
- return FALSE;
- }
- (*p_size)+=sizeof(ts_VhdFileHeader);
- break;
- default:
- LOG_ERROR("Unsupported image type!\n")
- return FALSE;
+ ret=glob_xmount.output.p_functions->Size(glob_xmount.output.p_handle,
+ &output_image_size);
+ if(ret!=0) {
+ LOG_ERROR("Couldn't get output image size!\n")
+ return FALSE;
}
- glob_xmount.output.image_size=*p_size;
+ glob_xmount.output.image_size=output_image_size;
+ *p_size=output_image_size;
return TRUE;
}
//! Read data from input image
/*!
* \param p_image Image from which to read data
* \param p_buf Pointer to buffer to write read data to (must be preallocated!)
* \param offset Offset at which data should be read
* \param size Size of data which should be read (size of buffer)
* \param p_read Number of read bytes on success
* \return 0 on success, negated error code on error
*/
static int GetInputImageData(pts_InputImage p_image,
char *p_buf,
off_t offset,
size_t size,
size_t *p_read)
{
int ret;
size_t to_read=0;
int read_errno=0;
LOG_DEBUG("Reading %zu bytes at offset %zu from input image '%s'\n",
size,
offset,
p_image->pp_files[0]);
// Make sure we aren't reading past EOF of image file
if(offset>=p_image->size) {
// Offset is beyond image size
LOG_DEBUG("Offset %zu is at / beyond size of input image '%s'\n",
offset,
p_image->pp_files[0]);
*p_read=0;
return 0;
}
if(offset+size>p_image->size) {
// Attempt to read data past EOF of image file
to_read=p_image->size-offset;
LOG_DEBUG("Attempt to read data past EOF of input image '%s'. "
"Correcting size from %zu to %zu\n",
p_image->pp_files[0],
size,
to_read);
} else to_read=size;
// Read data from image file (adding input image offset if one was specified)
ret=p_image->p_functions->Read(p_image->p_handle,
p_buf,
offset+glob_xmount.input.image_offset,
to_read,
p_read,
&read_errno);
if(ret!=0) {
LOG_ERROR("Couldn't read %zu bytes at offset %zu from input image "
"'%s': %s!\n",
to_read,
offset,
p_image->pp_files[0],
p_image->p_functions->GetErrorMessage(ret));
if(read_errno==0) return -EIO;
else return (read_errno*(-1));
}
return 0;
}
//! Read data from morphed image
/*!
* \param p_buf Pointer to buffer to write read data to (must be preallocated!)
* \param offset Offset at which data should be read
* \param size Size of data which should be read (size of buffer)
* \param p_read Number of read bytes on success
* \return TRUE on success, negated error code on error
*/
-static int GetMorphedImageData(char *p_buf,
- off_t offset,
- size_t size,
- size_t *p_read)
+static int ReadMorphedImageData(char *p_buf,
+ off_t offset,
+ size_t size,
+ size_t *p_read)
{
int ret;
size_t to_read=0;
size_t read;
uint64_t image_size=0;
// Make sure we aren't reading past EOF of image file
if(GetMorphedImageSize(&image_size)!=TRUE) {
LOG_ERROR("Couldn't get size of morphed image!\n");
return -EIO;
}
if(offset>=image_size) {
// Offset is beyond image size
LOG_DEBUG("Offset %zu is at / beyond size of morphed image.\n",offset);
*p_read=0;
return 0;
}
if(offset+size>image_size) {
// Attempt to read data past EOF of morphed image file
to_read=image_size-offset;
LOG_DEBUG("Attempt to read data past EOF of morphed image. Corrected size "
"from %zu to %zu.\n",
size,
to_read);
} else to_read=size;
// Read data from morphed image
ret=glob_xmount.morphing.p_functions->Read(glob_xmount.morphing.p_handle,
p_buf,
offset,
to_read,
&read);
if(ret!=0) {
LOG_ERROR("Couldn't read %zu bytes at offset %zu from morphed image: %s!\n",
to_read,
offset,
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
return -EIO;
}
*p_read=to_read;
return TRUE;
}
-//! Read data from virtual image
+//! Write data to morphed image
+/*!
+ * \param p_buf Buffer with data to write
+ * \param offset Offset to start writing at
+ * \param count Amount of bytes to write
+ * \param p_written Amount of successfully written bytes
+ * \return TRUE on success, negated error code on error
+ */
+static int WriteMorphedImageData(const char *p_buf,
+ off_t offset,
+ size_t count,
+ size_t *p_written)
+{
+ // TODO: Implement
+ return -EIO;
+}
+
+//! Read data from output image
/*!
* \param p_buf Pointer to buffer to write read data to
* \param offset Offset at which data should be read
* \param size Size of data which should be read
* \return Number of read bytes on success or negated error code on error
*/
-static int GetVirtImageData(char *p_buf, off_t offset, size_t size) {
- uint32_t cur_block=0;
- uint64_t morphed_image_size, virt_image_size;
- size_t read, to_read=0, cur_to_read=0;
- off_t file_off=offset, block_off=0;
- size_t to_read_later=0;
+static int ReadOutputImageData(char *p_buf, off_t offset, size_t size) {
+ uint64_t output_image_size;
+ size_t read=0;
int ret;
- // Get virtual image size
- if(GetVirtImageSize(&virt_image_size)!=TRUE) {
- LOG_ERROR("Couldn't get size of virtual image!\n")
+ // Get output image size
+ if(GetOutputImageSize(&output_image_size)!=TRUE) {
+ LOG_ERROR("Couldn't get size of output image!\n")
return -EIO;
}
- if(offset>=virt_image_size) {
- LOG_DEBUG("Offset %zu is at / beyond size of virtual image.\n",offset);
+ if(offset>=output_image_size) {
+ LOG_DEBUG("Offset %zu is at / beyond size of output image.\n",offset);
return 0;
}
- if(offset+size>virt_image_size) {
- LOG_DEBUG("Attempt to read data past EOF of virtual image. Corrected size "
+ if(offset+size>output_image_size) {
+ LOG_DEBUG("Attempt to read data past EOF of output image. Correcting size "
"from %zu to %zu.\n",
size,
- virt_image_size-offset);
- size=virt_image_size-offset;
+ output_image_size-offset);
+ size=output_image_size-offset;
}
- to_read=size;
+ ret=glob_xmount.output.p_functions->Read(glob_xmount.output.p_handle,
+ p_buf,
+ offset,
+ size,
+ &read);
+ if(ret!=0) {
+ LOG_ERROR("Unable to read %zu bytes at offset %zu from output image!\n",
+ size,
+ offset)
+ return ret;
+ } else if(read!=size) {
+ LOG_WARNING("Unable to read all requested data from output image!\n")
+ }
+
+ return size;
+
+ // TODO: Move part of this code to ReadMorphedImageData !!!
+/*
// Get morphed image size
if(GetMorphedImageSize(&morphed_image_size)!=TRUE) {
LOG_ERROR("Couldn't get morphed image size!")
return -EIO;
}
// Read virtual image type specific data preceeding morphed image data
switch(glob_xmount.output.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
break;
case VirtImageType_VDI:
if(file_off<glob_xmount.output.vdi.vdi_header_size) {
if(file_off+to_read>glob_xmount.output.vdi.vdi_header_size) {
cur_to_read=glob_xmount.output.vdi.vdi_header_size-file_off;
} else {
cur_to_read=to_read;
}
if(glob_xmount.output.writable==TRUE &&
glob_xmount.cache.p_cache_header->VdiFileHeaderCached==TRUE)
{
// VDI header was already cached
if(fseeko(glob_xmount.cache.h_old_cache_file,
glob_xmount.cache.p_cache_header->pVdiFileHeader+file_off,
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to cached VDI header at offset %"
PRIu64 "\n",
glob_xmount.cache.p_cache_header->pVdiFileHeader+file_off)
return -EIO;
}
if(fread(p_buf,cur_to_read,1,glob_xmount.cache.h_old_cache_file)!=1) {
LOG_ERROR("Couldn't read %zu bytes from cache file at offset %"
PRIu64 "\n",
cur_to_read,
glob_xmount.cache.p_cache_header->pVdiFileHeader+file_off)
return -EIO;
}
LOG_DEBUG("Read %zd bytes from cached VDI header at offset %"
PRIu64 " at cache file offset %" PRIu64 "\n",
cur_to_read,
file_off,
glob_xmount.cache.p_cache_header->pVdiFileHeader+file_off)
} else {
// VDI header isn't cached
memcpy(p_buf,
((char*)glob_xmount.output.vdi.p_vdi_header)+file_off,
cur_to_read);
LOG_DEBUG("Read %zd bytes at offset %" PRIu64
" from virtual VDI header\n",cur_to_read,
file_off)
}
if(to_read==cur_to_read) return to_read;
else {
// Adjust values to read from morphed image
to_read-=cur_to_read;
p_buf+=cur_to_read;
file_off=0;
}
} else file_off-=glob_xmount.output.vdi.vdi_header_size;
break;
case VirtImageType_VHD:
// When emulating VHD, make sure the while loop below only reads data
// available in the morphed image. Any VHD footer data must be read
// afterwards.
if(file_off>=morphed_image_size) {
to_read_later=to_read;
to_read=0;
} else if((file_off+to_read)>morphed_image_size) {
to_read_later=(file_off+to_read)-morphed_image_size;
to_read-=to_read_later;
}
break;
}
// Calculate block to read data from
cur_block=file_off/CACHE_BLOCK_SIZE;
block_off=file_off%CACHE_BLOCK_SIZE;
// Read image data
while(to_read!=0) {
// Calculate how many bytes we have to read from this block
if(block_off+to_read>CACHE_BLOCK_SIZE) {
cur_to_read=CACHE_BLOCK_SIZE-block_off;
} else cur_to_read=to_read;
if(glob_xmount.output.writable==TRUE &&
glob_xmount.cache.p_cache_blkidx[cur_block].Assigned==TRUE)
{
// Write support enabled and need to read altered data from cachefile
if(fseeko(glob_xmount.cache.h_old_cache_file,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+block_off,
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to offset %" PRIu64
" in cache file\n")
return -EIO;
}
if(fread(p_buf,cur_to_read,1,glob_xmount.cache.h_old_cache_file)!=1) {
LOG_ERROR("Couldn't read data from cache file!\n")
return -EIO;
}
LOG_DEBUG("Read %zd bytes at offset %" PRIu64
" from cache file\n",cur_to_read,file_off)
} else {
// No write support or data not cached
- ret=GetMorphedImageData(p_buf,file_off,cur_to_read,&read);
+ ret=ReadMorphedImageData(p_buf,file_off,cur_to_read,&read);
if(ret!=TRUE || read!=cur_to_read) {
LOG_ERROR("Couldn't read data from virtual image!\n")
return -EIO;
}
LOG_DEBUG("Read %zu bytes at offset %zu from virtual image file\n",
cur_to_read,
file_off);
}
cur_block++;
block_off=0;
p_buf+=cur_to_read;
to_read-=cur_to_read;
file_off+=cur_to_read;
}
if(to_read_later!=0) {
// Read virtual image type specific data following morphed image data
switch(glob_xmount.output.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
case VirtImageType_VDI:
break;
case VirtImageType_VHD:
// Micro$oft has choosen to use a footer rather then a header.
if(glob_xmount.output.writable==TRUE &&
glob_xmount.cache.p_cache_header->VhdFileHeaderCached==TRUE)
{
// VHD footer was already cached
if(fseeko(glob_xmount.cache.h_old_cache_file,
glob_xmount.cache.p_cache_header->pVhdFileHeader+
(file_off-morphed_image_size),
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to cached VHD footer at offset %"
PRIu64 "\n",
glob_xmount.cache.p_cache_header->pVhdFileHeader+
(file_off-morphed_image_size))
return -EIO;
}
if(fread(p_buf,to_read_later,1,glob_xmount.cache.h_old_cache_file)!=1) {
LOG_ERROR("Couldn't read %zu bytes from cache file at offset %"
PRIu64 "\n",
to_read_later,
glob_xmount.cache.p_cache_header->pVhdFileHeader+
(file_off-morphed_image_size))
return -EIO;
}
LOG_DEBUG("Read %zd bytes from cached VHD footer at offset %"
PRIu64 " at cache file offset %" PRIu64 "\n",
to_read_later,
(file_off-morphed_image_size),
glob_xmount.cache.p_cache_header->pVhdFileHeader+
(file_off-morphed_image_size))
} else {
// VHD header isn't cached
memcpy(p_buf,
((char*)glob_xmount.output.vhd.p_vhd_header)+
(file_off-morphed_image_size),
to_read_later);
LOG_DEBUG("Read %zd bytes at offset %" PRIu64
" from virtual VHD header\n",
to_read_later,
(file_off-morphed_image_size))
}
break;
}
}
-
- return size;
-}
-
-//! Write data to virtual VDI file header
-/*!
- * \param p_buf Buffer containing data to write
- * \param offset Offset of changes
- * \param size Amount of bytes to write
- * \return Number of written bytes on success or "-1" on error
- */
-static int SetVdiFileHeaderData(char *p_buf,off_t offset,size_t size) {
- if(offset+size>glob_xmount.output.vdi.vdi_header_size) {
- size=glob_xmount.output.vdi.vdi_header_size-offset;
- }
-
- LOG_DEBUG("Need to cache %zu bytes at offset %" PRIu64
- " from VDI header\n",
- size,
- offset);
-
- if(glob_xmount.cache.p_cache_header->VdiFileHeaderCached==1) {
- // Header was already cached
- if(fseeko(glob_xmount.cache.h_old_cache_file,
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset,
- SEEK_SET)!=0)
- {
- LOG_ERROR("Couldn't seek to cached VDI header at address %" PRIu64 "\n",
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset)
- return -1;
- }
- if(fwrite(p_buf,size,1,glob_xmount.cache.h_old_cache_file)!=1) {
- LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
- PRIu64 "\n",
- size,
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset)
- return -1;
- }
-
- LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n",
- size,
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset)
- } else {
- // Header wasn't already cached.
- if(fseeko(glob_xmount.cache.h_old_cache_file,
- 0,
- SEEK_END)!=0)
- {
- LOG_ERROR("Couldn't seek to end of cache file!")
- return -1;
- }
- glob_xmount.cache.p_cache_header->pVdiFileHeader=
- ftello(glob_xmount.cache.h_old_cache_file);
- 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*)glob_xmount.output.vdi.p_vdi_header,
- offset,
- 1,
- glob_xmount.cache.h_old_cache_file)!=1)
- {
- LOG_ERROR("Error while writing %" PRIu64 " bytes "
- "to cache file at offset %" PRIu64 "!\n",
- offset,
- glob_xmount.cache.p_cache_header->pVdiFileHeader);
- return -1;
- }
- LOG_DEBUG("Prepended changed data with %" PRIu64
- " bytes at cache file offset %" PRIu64 "\n",
- offset,
- glob_xmount.cache.p_cache_header->pVdiFileHeader)
- }
- // Cache changed data
- if(fwrite(p_buf,size,1,glob_xmount.cache.h_old_cache_file)!=1) {
- LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
- PRIu64 "\n",size,
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset)
- return -1;
- }
- LOG_DEBUG("Wrote %zu bytes of changed data to cache file offset %"
- PRIu64 "\n",
- size,
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset)
- if(offset+size!=glob_xmount.output.vdi.vdi_header_size) {
- // Need to append data from VDI header to cache whole data struct
- if(fwrite(((char*)glob_xmount.output.vdi.p_vdi_header)+offset+size,
- glob_xmount.output.vdi.vdi_header_size-(offset+size),
- 1,
- glob_xmount.cache.h_old_cache_file)!=1)
- {
- LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
- PRIu64 "\n",
- glob_xmount.output.vdi.vdi_header_size-(offset+size),
- (uint64_t)(glob_xmount.cache.p_cache_header->pVdiFileHeader+
- offset+size));
- return -1;
- }
- LOG_DEBUG("Appended %" PRIu32
- " bytes to changed data at cache file offset %" PRIu64 "\n",
- glob_xmount.output.vdi.vdi_header_size-(offset+size),
- glob_xmount.cache.p_cache_header->pVdiFileHeader+offset+size)
- }
- // Mark header as cached and update header in cache file
- glob_xmount.cache.p_cache_header->VdiFileHeaderCached=1;
- if(fseeko(glob_xmount.cache.h_old_cache_file,0,SEEK_SET)!=0) {
- LOG_ERROR("Couldn't seek to offset 0 of cache file!\n")
- return -1;
- }
- if(fwrite((char*)glob_xmount.cache.p_cache_header,
- sizeof(ts_CacheFileHeader),
- 1,
- glob_xmount.cache.h_old_cache_file)!=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(glob_xmount.cache.h_old_cache_file);
-#ifndef __APPLE__
- ioctl(fileno(glob_xmount.cache.h_old_cache_file),BLKFLSBUF,0);
-#endif
- return size;
+*/
}
-//! Write data to virtual VHD file footer
+//! Write data to output image
/*!
- * \param p_buf Buffer containing data to write
- * \param offset Offset of changes
+ * \param p_buf Buffer with data to write
+ * \param offset Offset to write to
* \param size Amount of bytes to write
* \return Number of written bytes on success or "-1" on error
*/
-static int SetVhdFileHeaderData(char *p_buf,off_t offset,size_t size) {
- LOG_DEBUG("Need to cache %zu bytes at offset %" PRIu64
- " from VHD footer\n",size,offset)
- if(glob_xmount.cache.p_cache_header->VhdFileHeaderCached==1) {
- // Header has already been cached
- if(fseeko(glob_xmount.cache.h_old_cache_file,
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset,
- SEEK_SET)!=0)
- {
- LOG_ERROR("Couldn't seek to cached VHD header at address %" PRIu64 "\n",
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset);
- return -1;
- }
- if(fwrite(p_buf,size,1,glob_xmount.cache.h_old_cache_file)!=1) {
- LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
- PRIu64 "\n",
- size,
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset);
- return -1;
- }
- LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n",
- size,
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset);
- } else {
- // Header hasn't been cached yet.
- if(fseeko(glob_xmount.cache.h_old_cache_file,
- 0,
- SEEK_END)!=0)
- {
- LOG_ERROR("Couldn't seek to end of cache file!")
- return -1;
- }
- glob_xmount.cache.p_cache_header->pVhdFileHeader=
- ftello(glob_xmount.cache.h_old_cache_file);
- 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*)glob_xmount.output.vhd.p_vhd_header,
- offset,
- 1,
- glob_xmount.cache.h_old_cache_file)!=1)
- {
- LOG_ERROR("Error while writing %" PRIu64 " bytes "
- "to cache file at offset %" PRIu64 "!\n",
- offset,
- glob_xmount.cache.p_cache_header->pVhdFileHeader);
- return -1;
- }
- LOG_DEBUG("Prepended changed data with %" PRIu64
- " bytes at cache file offset %" PRIu64 "\n",
- offset,
- glob_xmount.cache.p_cache_header->pVhdFileHeader);
- }
- // Cache changed data
- if(fwrite(p_buf,size,1,glob_xmount.cache.h_old_cache_file)!=1) {
- LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
- PRIu64 "\n",
- size,
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset);
- return -1;
- }
- LOG_DEBUG("Wrote %zu bytes of changed data to cache file offset %"
- PRIu64 "\n",
- size,
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset);
- if(offset+size!=sizeof(ts_VhdFileHeader)) {
- // Need to append data from VHD header to cache whole data struct
- if(fwrite(((char*)glob_xmount.output.vhd.p_vhd_header)+offset+size,
- sizeof(ts_VhdFileHeader)-(offset+size),
- 1,
- glob_xmount.cache.h_old_cache_file)!=1)
- {
- LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
- PRIu64 "\n",
- sizeof(ts_VhdFileHeader)-(offset+size),
- (uint64_t)(glob_xmount.cache.p_cache_header->pVhdFileHeader+
- offset+size))
- return -1;
- }
- LOG_DEBUG("Appended %" PRIu32
- " bytes to changed data at cache file offset %" PRIu64 "\n",
- sizeof(ts_VhdFileHeader)-(offset+size),
- glob_xmount.cache.p_cache_header->pVhdFileHeader+offset+size);
- }
- // Mark header as cached and update header in cache file
- glob_xmount.cache.p_cache_header->VhdFileHeaderCached=1;
- if(fseeko(glob_xmount.cache.h_old_cache_file,0,SEEK_SET)!=0) {
- LOG_ERROR("Couldn't seek to offset 0 of cache file!\n")
- return -1;
- }
- if(fwrite((char*)glob_xmount.cache.p_cache_header,
- sizeof(ts_CacheFileHeader),
- 1,
- glob_xmount.cache.h_old_cache_file)!=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(glob_xmount.cache.h_old_cache_file);
-#ifndef __APPLE__
- ioctl(fileno(glob_xmount.cache.h_old_cache_file),BLKFLSBUF,0);
-#endif
- return size;
-}
-
-//! Write data to virtual image
-/*!
- * \param p_buf Buffer containing data to write
- * \param offset Offset to start writing at
- * \param size Size of data to be written
- * \return Number of written bytes on success or "-1" on error
- */
-static int SetVirtImageData(const char *p_buf, off_t offset, size_t size) {
- uint64_t cur_block=0;
- uint64_t virt_image_size;
- uint64_t orig_image_size;
- size_t to_write=0;
- size_t to_write_later=0;
- size_t to_write_now=0;
- off_t file_offset=offset;
- off_t block_offset=0;
- char *p_write_buf=(char*)p_buf;
- char *p_buf2;
+static int WriteOutputImageData(const char *p_buf, off_t offset, size_t size) {
+ uint64_t output_image_size;
int ret;
- size_t read;
+ size_t written;
- // Get virtual image size
- if(!GetVirtImageSize(&virt_image_size)) {
- LOG_ERROR("Couldn't get virtual image size!\n")
+ // Get output image size
+ if(!GetOutputImageSize(&output_image_size)) {
+ LOG_ERROR("Couldn't get output image size!\n")
return -1;
}
- if(offset>=virt_image_size) {
- LOG_ERROR("Attempt to write beyond EOF of virtual image file!\n")
+ // Make sure write is within output image
+ if(offset>=output_image_size) {
+ LOG_ERROR("Attempt to write beyond EOF of output image file!\n")
return -1;
}
+ if(offset+size>output_image_size) {
+ LOG_DEBUG("Attempt to write past EOF of output image file. Correcting size "
+ "from %zu to %zu.\n",
+ size,
+ output_image_size-offset);
+ size=output_image_size-offset;
+ }
- if(offset+size>virt_image_size) {
- LOG_DEBUG("Attempt to write past EOF of virtual image file\n")
- size=virt_image_size-offset;
+ ret=glob_xmount.output.p_functions->Write(glob_xmount.output.p_handle,
+ p_buf,
+ offset,
+ size,
+ &written);
+ if(ret!=0) {
+ LOG_ERROR("Unable to write %zu bytes at offset %zu to output image!\n",
+ offset,
+ size)
+ return ret;
+ } else if(written!=size) {
+ LOG_WARNING("Unable to write all requested data to output image!\n")
}
- to_write=size;
+ return size;
+ // TODO: Move part of this code to WriteMorphedImageData() !!
+/*
// Get original image size
if(!GetMorphedImageSize(&orig_image_size)) {
LOG_ERROR("Couldn't get morphed image size!\n")
return -1;
}
// Cache virtual image type specific data preceeding original image data
switch(glob_xmount.output.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
break;
case VirtImageType_VDI:
if(file_offset<glob_xmount.output.vdi.vdi_header_size) {
ret=SetVdiFileHeaderData(p_write_buf,file_offset,to_write);
if(ret==-1) {
LOG_ERROR("Couldn't write data to virtual VDI file header!\n")
return -1;
}
if(ret==to_write) return to_write;
else {
to_write-=ret;
p_write_buf+=ret;
file_offset=0;
}
} else file_offset-=glob_xmount.output.vdi.vdi_header_size;
break;
case VirtImageType_VHD:
// When emulating VHD, make sure the while loop below only writes data
// available in the original image. Any VHD footer data must be written
// afterwards.
if(file_offset>=orig_image_size) {
to_write_later=to_write;
to_write=0;
} else if((file_offset+to_write)>orig_image_size) {
to_write_later=(file_offset+to_write)-orig_image_size;
to_write-=to_write_later;
}
break;
}
// Calculate block to write data to
cur_block=file_offset/CACHE_BLOCK_SIZE;
block_offset=file_offset%CACHE_BLOCK_SIZE;
while(to_write!=0) {
// Calculate how many bytes we have to write to this block
if(block_offset+to_write>CACHE_BLOCK_SIZE) {
to_write_now=CACHE_BLOCK_SIZE-block_offset;
} else to_write_now=to_write;
if(glob_xmount.cache.p_cache_blkidx[cur_block].Assigned==1) {
// Block was already cached
// Seek to data offset in cache file
if(fseeko(glob_xmount.cache.h_old_cache_file,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+block_offset,
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to cached block at address %" PRIu64 "\n",
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+
block_offset);
return -1;
}
if(fwrite(p_write_buf,to_write_now,1,glob_xmount.cache.h_old_cache_file)!=1) {
LOG_ERROR("Error while writing %zu bytes "
"to cache file at offset %" PRIu64 "!\n",
to_write_now,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+
block_offset);
return -1;
}
LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64
" to cache file\n",to_write_now,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+
block_offset);
} else {
// Uncached block. Need to cache entire new block
// Seek to end of cache file to append new cache block
fseeko(glob_xmount.cache.h_old_cache_file,0,SEEK_END);
glob_xmount.cache.p_cache_blkidx[cur_block].off_data=
ftello(glob_xmount.cache.h_old_cache_file);
if(block_offset!=0) {
// Changed data does not begin at block boundry. Need to prepend
// with data from virtual image file
XMOUNT_MALLOC(p_buf2,char*,block_offset*sizeof(char));
- ret=GetMorphedImageData(p_buf2,
- file_offset-block_offset,
- block_offset,
- &read);
+ ret=ReadMorphedImageData(p_buf2,
+ file_offset-block_offset,
+ block_offset,
+ &read);
if(ret!=TRUE || read!=block_offset) {
LOG_ERROR("Couldn't read data from morphed image!\n")
return -1;
}
if(fwrite(p_buf2,block_offset,1,glob_xmount.cache.h_old_cache_file)!=1) {
LOG_ERROR("Couldn't writing %" PRIu64 " bytes "
"to cache file at offset %" PRIu64 "!\n",
block_offset,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data);
return -1;
}
LOG_DEBUG("Prepended changed data with %" PRIu64
" bytes from virtual image file at offset %" PRIu64
"\n",block_offset,file_offset-block_offset)
free(p_buf2);
}
if(fwrite(p_write_buf,to_write_now,1,glob_xmount.cache.h_old_cache_file)!=1) {
LOG_ERROR("Error while writing %zd bytes "
"to cache file at offset %" PRIu64 "!\n",
to_write_now,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+
block_offset);
return -1;
}
if(block_offset+to_write_now!=CACHE_BLOCK_SIZE) {
// Changed data does not end at block boundry. Need to append
// with data from virtual image file
XMOUNT_MALLOC(p_buf2,char*,(CACHE_BLOCK_SIZE-
(block_offset+to_write_now))*sizeof(char))
memset(p_buf2,0,CACHE_BLOCK_SIZE-(block_offset+to_write_now));
if((file_offset-block_offset)+CACHE_BLOCK_SIZE>orig_image_size) {
// Original image is smaller than full cache block
- ret=GetMorphedImageData(p_buf2,
- file_offset+to_write_now,
- orig_image_size-(file_offset+to_write_now),
- &read);
+ ret=ReadMorphedImageData(p_buf2,
+ file_offset+to_write_now,
+ orig_image_size-(file_offset+to_write_now),
+ &read);
if(ret!=TRUE || read!=orig_image_size-(file_offset+to_write_now)) {
LOG_ERROR("Couldn't read data from virtual image file!\n")
return -1;
}
} else {
- ret=GetMorphedImageData(p_buf2,
- file_offset+to_write_now,
- CACHE_BLOCK_SIZE-(block_offset+to_write_now),
- &read);
+ ret=ReadMorphedImageData(p_buf2,
+ file_offset+to_write_now,
+ CACHE_BLOCK_SIZE-(block_offset+to_write_now),
+ &read);
if(ret!=TRUE || read!=CACHE_BLOCK_SIZE-(block_offset+to_write_now)) {
LOG_ERROR("Couldn't read data from virtual image file!\n")
return -1;
}
}
if(fwrite(p_buf2,
CACHE_BLOCK_SIZE-(block_offset+to_write_now),
1,
glob_xmount.cache.h_old_cache_file)!=1)
{
LOG_ERROR("Error while writing %zd bytes "
"to cache file at offset %" PRIu64 "!\n",
CACHE_BLOCK_SIZE-(block_offset+to_write_now),
glob_xmount.cache.p_cache_blkidx[cur_block].off_data+
block_offset+to_write_now);
return -1;
}
free(p_buf2);
}
// All important data for this cache block has been written,
// flush all buffers and mark cache block as assigned
fflush(glob_xmount.cache.h_old_cache_file);
#ifndef __APPLE__
ioctl(fileno(glob_xmount.cache.h_old_cache_file),BLKFLSBUF,0);
#endif
glob_xmount.cache.p_cache_blkidx[cur_block].Assigned=1;
// Update cache block index entry in cache file
fseeko(glob_xmount.cache.h_old_cache_file,
sizeof(ts_CacheFileHeader)+
(cur_block*sizeof(ts_CacheFileBlockIndex)),
SEEK_SET);
if(fwrite(&(glob_xmount.cache.p_cache_blkidx[cur_block]),
sizeof(ts_CacheFileBlockIndex),
1,
glob_xmount.cache.h_old_cache_file)!=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",
cur_block,
glob_xmount.cache.p_cache_blkidx[cur_block].off_data);
}
// Flush buffers
fflush(glob_xmount.cache.h_old_cache_file);
#ifndef __APPLE__
ioctl(fileno(glob_xmount.cache.h_old_cache_file),BLKFLSBUF,0);
#endif
block_offset=0;
cur_block++;
p_write_buf+=to_write_now;
to_write-=to_write_now;
file_offset+=to_write_now;
}
if(to_write_later!=0) {
// Cache virtual image type specific data preceeding original image data
switch(glob_xmount.output.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
case VirtImageType_VDI:
break;
case VirtImageType_VHD:
// Micro$oft has choosen to use a footer rather then a header.
ret=SetVhdFileHeaderData(p_write_buf,
file_offset-orig_image_size,
to_write_later);
if(ret==-1) {
LOG_ERROR("Couldn't write data to virtual VHD file footer!\n")
return -1;
}
break;
}
}
-
- return size;
+*/
}
//! Calculates an MD5 hash of the first HASH_AMOUNT bytes of the input image
/*!
* \param p_hash_low Pointer to the lower 64 bit of the hash
* \param p_hash_high Pointer to the higher 64 bit of the hash
* \return TRUE on success, FALSE on error
*/
static int CalculateInputImageHash(uint64_t *p_hash_low,
uint64_t *p_hash_high)
{
char hash[16];
md5_state_t md5_state;
char *p_buf;
int ret;
size_t read_data;
XMOUNT_MALLOC(p_buf,char*,HASH_AMOUNT*sizeof(char));
- ret=GetMorphedImageData(p_buf,0,HASH_AMOUNT,&read_data);
+ ret=ReadMorphedImageData(p_buf,0,HASH_AMOUNT,&read_data);
if(ret!=TRUE || read_data==0) {
LOG_ERROR("Couldn't read data from morphed image file!\n")
free(p_buf);
return FALSE;
}
// Calculate MD5 hash
md5_init(&md5_state);
md5_append(&md5_state,(const md5_byte_t*)p_buf,read_data);
md5_finish(&md5_state,(md5_byte_t*)hash);
// Convert MD5 hash into two 64bit integers
*p_hash_low=*((uint64_t*)hash);
*p_hash_high=*((uint64_t*)(hash+8));
free(p_buf);
return TRUE;
}
-//! Build and init virtual VDI file header
-/*!
- * \return 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 image_size;
- off_t offset;
- uint32_t i,block_entries;
-
- // Get input image size
- if(!GetMorphedImageSize(&image_size)) {
- LOG_ERROR("Couldn't get morphed image size!\n")
- return FALSE;
- }
-
- // Calculate how many VDI blocks we need
- block_entries=image_size/VDI_IMAGE_BLOCK_SIZE;
- if((image_size%VDI_IMAGE_BLOCK_SIZE)!=0) block_entries++;
- glob_xmount.output.vdi.vdi_block_map_size=block_entries*sizeof(uint32_t);
- LOG_DEBUG("BlockMap: %d (%08X) entries, %d (%08X) bytes!\n",
- block_entries,
- block_entries,
- glob_xmount.output.vdi.vdi_block_map_size,
- glob_xmount.output.vdi.vdi_block_map_size)
-
- // Allocate memory for vdi header and block map
- glob_xmount.output.vdi.vdi_header_size=
- sizeof(ts_VdiFileHeader)+glob_xmount.output.vdi.vdi_block_map_size;
- XMOUNT_MALLOC(glob_xmount.output.vdi.p_vdi_header,
- pts_VdiFileHeader,
- glob_xmount.output.vdi.vdi_header_size);
- memset(glob_xmount.output.vdi.p_vdi_header,
- 0,
- glob_xmount.output.vdi.vdi_header_size);
- glob_xmount.output.vdi.p_vdi_block_map=
- ((void*)glob_xmount.output.vdi.p_vdi_header)+sizeof(ts_VdiFileHeader);
-
- // Init header values
- strncpy(glob_xmount.output.vdi.p_vdi_header->szFileInfo,
- VDI_FILE_COMMENT,
- strlen(VDI_FILE_COMMENT)+1);
- glob_xmount.output.vdi.p_vdi_header->u32Signature=VDI_IMAGE_SIGNATURE;
- glob_xmount.output.vdi.p_vdi_header->u32Version=VDI_IMAGE_VERSION;
- // No idea what the following value is for! Testimage had same value
- glob_xmount.output.vdi.p_vdi_header->cbHeader=0x00000180;
- glob_xmount.output.vdi.p_vdi_header->u32Type=VDI_IMAGE_TYPE_FIXED;
- glob_xmount.output.vdi.p_vdi_header->fFlags=VDI_IMAGE_FLAGS;
- strncpy(glob_xmount.output.vdi.p_vdi_header->szComment,
- VDI_HEADER_COMMENT,
- strlen(VDI_HEADER_COMMENT)+1);
- glob_xmount.output.vdi.p_vdi_header->offData=
- glob_xmount.output.vdi.vdi_header_size;
- glob_xmount.output.vdi.p_vdi_header->offBlocks=sizeof(ts_VdiFileHeader);
- glob_xmount.output.vdi.p_vdi_header->cCylinders=0; // Legacy info
- glob_xmount.output.vdi.p_vdi_header->cHeads=0; // Legacy info
- glob_xmount.output.vdi.p_vdi_header->cSectors=0; // Legacy info
- glob_xmount.output.vdi.p_vdi_header->cbSector=512; // Legacy info
- glob_xmount.output.vdi.p_vdi_header->u32Dummy=0;
- glob_xmount.output.vdi.p_vdi_header->cbDisk=image_size;
- // Seems as VBox is always using a 1MB blocksize
- glob_xmount.output.vdi.p_vdi_header->cbBlock=VDI_IMAGE_BLOCK_SIZE;
- glob_xmount.output.vdi.p_vdi_header->cbBlockExtra=0;
- glob_xmount.output.vdi.p_vdi_header->cBlocks=block_entries;
- glob_xmount.output.vdi.p_vdi_header->cBlocksAllocated=block_entries;
- // 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.
- glob_xmount.output.vdi.p_vdi_header->uuidCreate_l=
- glob_xmount.input.image_hash_lo;
- glob_xmount.output.vdi.p_vdi_header->uuidCreate_h=
- glob_xmount.input.image_hash_hi;
-
-#define rand64(var) { \
- *((uint32_t*)&(var))=rand(); \
- *(((uint32_t*)&(var))+1)=rand(); \
-}
-
- rand64(glob_xmount.output.vdi.p_vdi_header->uuidModify_l);
- rand64(glob_xmount.output.vdi.p_vdi_header->uuidModify_h);
-
-#undef rand64
-
- // Generate block map
- i=0;
- for(offset=0;offset<glob_xmount.output.vdi.vdi_block_map_size;offset+=4) {
- *((uint32_t*)(glob_xmount.output.vdi.p_vdi_block_map+offset))=i;
- i++;
- }
-
- LOG_DEBUG("VDI header size = %u\n",glob_xmount.output.vdi.vdi_header_size);
-
- return TRUE;
-}
-
-//! Build and init virtual VHD file header
-/*!
- * \return TRUE on success, FALSE on error
- */
-static int InitVirtVhdHeader() {
- uint64_t orig_image_size=0;
- uint16_t i=0;
- uint64_t geom_tot_s=0;
- uint64_t geom_c_x_h=0;
- uint16_t geom_c=0;
- uint8_t geom_h=0;
- uint8_t geom_s=0;
- uint32_t checksum=0;
-
- // Get input image size
- if(!GetMorphedImageSize(&orig_image_size)) {
- LOG_ERROR("Couldn't get morphed image size!\n")
- return FALSE;
- }
-
- // Allocate memory for vhd header
- XMOUNT_MALLOC(glob_xmount.output.vhd.p_vhd_header,
- pts_VhdFileHeader,
- sizeof(ts_VhdFileHeader));
- memset(glob_xmount.output.vhd.p_vhd_header,0,sizeof(ts_VhdFileHeader));
-
- // Init header values
- glob_xmount.output.vhd.p_vhd_header->cookie=VHD_IMAGE_HVAL_COOKIE;
- glob_xmount.output.vhd.p_vhd_header->features=VHD_IMAGE_HVAL_FEATURES;
- glob_xmount.output.vhd.p_vhd_header->file_format_version=
- VHD_IMAGE_HVAL_FILE_FORMAT_VERSION;
- glob_xmount.output.vhd.p_vhd_header->data_offset=VHD_IMAGE_HVAL_DATA_OFFSET;
- glob_xmount.output.vhd.p_vhd_header->creation_time=
- htobe32(time(NULL)-VHD_IMAGE_TIME_CONVERSION_OFFSET);
- glob_xmount.output.vhd.p_vhd_header->creator_app=
- VHD_IMAGE_HVAL_CREATOR_APPLICATION;
- glob_xmount.output.vhd.p_vhd_header->creator_ver=
- VHD_IMAGE_HVAL_CREATOR_VERSION;
- glob_xmount.output.vhd.p_vhd_header->creator_os=
- VHD_IMAGE_HVAL_CREATOR_HOST_OS;
- glob_xmount.output.vhd.p_vhd_header->size_original=htobe64(orig_image_size);
- glob_xmount.output.vhd.p_vhd_header->size_current=
- glob_xmount.output.vhd.p_vhd_header->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;
-
- glob_xmount.output.vhd.p_vhd_header->disk_geometry_c=htobe16(geom_c);
- glob_xmount.output.vhd.p_vhd_header->disk_geometry_h=geom_h;
- glob_xmount.output.vhd.p_vhd_header->disk_geometry_s=geom_s;
-
- glob_xmount.output.vhd.p_vhd_header->disk_type=VHD_IMAGE_HVAL_DISK_TYPE;
-
- glob_xmount.output.vhd.p_vhd_header->uuid_l=glob_xmount.input.image_hash_lo;
- glob_xmount.output.vhd.p_vhd_header->uuid_h=glob_xmount.input.image_hash_hi;
- glob_xmount.output.vhd.p_vhd_header->saved_state=0x00;
-
- // Calculate footer checksum
- for(i=0;i<sizeof(ts_VhdFileHeader);i++) {
- checksum+=*((uint8_t*)(glob_xmount.output.vhd.p_vhd_header)+i);
- }
- glob_xmount.output.vhd.p_vhd_header->checksum=htobe32(~checksum);
-
- LOG_DEBUG("VHD header size = %u\n",sizeof(ts_VhdFileHeader));
-
- return TRUE;
-}
-
-//! Init the virtual VMDK file
+//! Create info file
/*!
* \return TRUE on success, FALSE on error
*/
-static int InitVirtualVmdkFile() {
- uint64_t image_size=0;
- uint64_t image_blocks=0;
- char buf[500];
-
- // Get original image size
- if(!GetMorphedImageSize(&image_size)) {
- LOG_ERROR("Couldn't get morphed image size!\n")
- return FALSE;
- }
-
- image_blocks=image_size/512;
- if(image_size%512!=0) image_blocks++;
-
-#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(glob_xmount.output.VirtImageType==VirtImageType_VMDK) {
- // VMDK with IDE bus
- sprintf(buf,
- VMDK_DESC_FILE,
- image_blocks,
- (glob_xmount.output.p_virtual_image_path)+1,
- "ide");
- } else if(glob_xmount.output.VirtImageType==VirtImageType_VMDKS){
- // VMDK with SCSI bus
- sprintf(buf,
- VMDK_DESC_FILE,
- image_blocks,
- (glob_xmount.output.p_virtual_image_path)+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(glob_xmount.output.vmdk.p_vmdk_file,char*,strlen(buf))
- strncpy(glob_xmount.output.vmdk.p_vmdk_file,buf,strlen(buf));
- glob_xmount.output.vmdk.vmdk_file_size=strlen(buf);
-
- return TRUE;
-}
-
-//! Create virtual image info file
-/*!
- * \return TRUE on success, FALSE on error
- */
-static int InitVirtImageInfoFile() {
+static int InitInfoFile() {
int ret;
char *p_buf;
// Start with static input header
XMOUNT_MALLOC(glob_xmount.output.p_info_file,
char*,
strlen(IMAGE_INFO_INPUT_HEADER)+1);
strncpy(glob_xmount.output.p_info_file,
IMAGE_INFO_INPUT_HEADER,
strlen(IMAGE_INFO_INPUT_HEADER)+1);
// Get and add infos from input lib(s)
for(uint64_t i=0;i<glob_xmount.input.images_count;i++) {
ret=glob_xmount.input.pp_images[i]->p_functions->
GetInfofileContent(glob_xmount.input.pp_images[i]->p_handle,(const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get info file content for image '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
return FALSE;
}
// Add infos to main buffer and free p_buf
XMOUNT_STRAPP(glob_xmount.output.p_info_file,"\n--> ");
XMOUNT_STRAPP(glob_xmount.output.p_info_file,
glob_xmount.input.pp_images[i]->pp_files[0]);
XMOUNT_STRAPP(glob_xmount.output.p_info_file," <--\n");
if(p_buf!=NULL) {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,p_buf);
glob_xmount.input.pp_images[i]->p_functions->FreeBuffer(p_buf);
} else {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,"None\n");
}
}
// Add static morphing header
XMOUNT_STRAPP(glob_xmount.output.p_info_file,IMAGE_INFO_MORPHING_HEADER);
// Get and add infos from morphing lib
ret=glob_xmount.morphing.p_functions->
GetInfofileContent(glob_xmount.morphing.p_handle,(const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get info file content from morphing lib: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
return FALSE;
}
if(p_buf!=NULL) {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,p_buf);
glob_xmount.morphing.p_functions->FreeBuffer(p_buf);
} else {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,"None\n");
}
return TRUE;
}
//! Create / load cache file to enable virtual write support
/*!
* \return TRUE on success, FALSE on error
*/
static int InitCacheFile() {
uint64_t blockindex_size=0;
uint64_t image_size=0;
uint64_t written=0;
uint32_t needed_blocks=0;
uint8_t is_new_cache_file=0;
teGidaFsError gidafs_ret=eGidaFsError_None;
t_CacheFileBlockIndex *p_index_buf=NULL;
// Get input image size for later use
if(!GetMorphedImageSize(&image_size)) {
LOG_ERROR("Couldn't get morphed image size!\n")
return FALSE;
}
if(!glob_xmount.cache.overwrite_cache) {
// Try to open an existing cache file or create a new one
gidafs_ret=GidaFsLib_OpenFs(&(glob_xmount.cache.h_cache_file),
glob_xmount.cache.p_cache_file);
if(gidafs_ret!=eGidaFsError_None &&
gidafs_ret!=eGidaFsError_FailedOpeningFsFile)
{
// TODO: Check for old cache file type and inform user it isn't supported
// anymore!
LOG_ERROR("Couldn't open cache file '%s': Error code %u!\n",
glob_xmount.cache.p_cache_file,
gidafs_ret)
return FALSE;
} else if(gidafs_ret==eGidaFsError_FailedOpeningFsFile) {
// Unable to open cache file. It might simply not exist.
LOG_DEBUG("Cache file '%s' does not exist. Creating new one\n",
glob_xmount.cache.p_cache_file)
gidafs_ret=GidaFsLib_NewFs(&(glob_xmount.cache.h_cache_file),
glob_xmount.cache.p_cache_file,
0);
if(gidafs_ret!=eGidaFsError_None) {
// There is really a problem opening/creating the file
LOG_ERROR("Couldn't open cache file '%s': Error code %u!\n",
glob_xmount.cache.p_cache_file,
gidafs_ret)
return FALSE;
}
is_new_cache_file=1;
}
} else {
// Overwrite existing cache file or create a new one
gidafs_ret=GidaFsLib_NewFs(&(glob_xmount.cache.h_cache_file),
glob_xmount.cache.p_cache_file,
0);
if(gidafs_ret!=eGidaFsError_None) {
// There is really a problem opening/creating the file
LOG_ERROR("Couldn't open cache file '%s': Error code %u!\n",
glob_xmount.cache.p_cache_file,
gidafs_ret)
return FALSE;
}
is_new_cache_file=1;
}
#define INITCACHEFILE__CLOSE_CACHE do { \
gidafs_ret=GidaFsLib_CloseFs(&(glob_xmount.cache.h_cache_file)); \
if(gidafs_ret!=eGidaFsError_None) { \
LOG_ERROR("Unable to close cache file: Error code %u: Ignoring!\n", \
gidafs_ret) \
} \
} while(0)
#define INITCACHEFILE__CLOSE_BLOCK_CACHE do { \
gidafs_ret=GidaFsLib_CloseFile(glob_xmount.cache.h_cache_file, \
&(glob_xmount.cache.h_block_cache)); \
if(gidafs_ret!=eGidaFsError_None) { \
LOG_ERROR("Unable to close block cache file: Error code %u: Ignoring!\n", \
gidafs_ret) \
} \
} while(0)
#define INITCACHEFILE__CLOSE_BLOCK_CACHE_INDEX do { \
gidafs_ret=GidaFsLib_CloseFile(glob_xmount.cache.h_cache_file, \
&(glob_xmount.cache.h_block_cache_index)); \
if(gidafs_ret!=eGidaFsError_None) { \
LOG_ERROR("Unable to close block cache index file: Error code %u: " \
"Ignoring!\n", \
gidafs_ret) \
} \
} while(0)
if(is_new_cache_file==1) {
// New cache file, create needed xmount subdirectory
gidafs_ret=GidaFsLib_CreateDir(glob_xmount.cache.h_cache_file,
XMOUNT_CACHE_FOLDER,
eGidaFsNodeFlag_RWXu);
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to create cache file directory '%s': Error code %u!\n",
XMOUNT_CACHE_FOLDER,
gidafs_ret)
INITCACHEFILE__CLOSE_CACHE;
return FALSE;
}
}
// Open / Create block cache file
gidafs_ret=GidaFsLib_OpenFile(glob_xmount.cache.h_cache_file,
XMOUNT_CACHE_BLOCK_FILE,
&(glob_xmount.cache.h_block_cache),
eGidaFsOpenFileFlag_ReadWrite |
(is_new_cache_file==1 ?
eGidaFsOpenFileFlag_CreateAlways : 0),
eGidaFsNodeFlag_Rall |
eGidaFsNodeFlag_Wusr);
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to open / create block cache file '%s': Error code %u!\n",
XMOUNT_CACHE_BLOCK_FILE,
gidafs_ret)
INITCACHEFILE__CLOSE_CACHE;
return FALSE;
}
// Create block cache index file
gidafs_ret=GidaFsLib_OpenFile(glob_xmount.cache.h_cache_file,
XMOUNT_CACHE_BLOCK_INDEX_FILE,
&(glob_xmount.cache.h_block_cache_index),
eGidaFsOpenFileFlag_ReadWrite |
(is_new_cache_file==1 ?
eGidaFsOpenFileFlag_CreateAlways : 0),
eGidaFsNodeFlag_Rall |
eGidaFsNodeFlag_Wusr);
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to open / create block cache index file '%s': "
"Error code %u!\n",
XMOUNT_CACHE_BLOCK_FILE,
gidafs_ret)
INITCACHEFILE__CLOSE_BLOCK_CACHE;
INITCACHEFILE__CLOSE_CACHE;
return FALSE;
}
// Calculate how many cache blocks are needed and how big the cache block
// index must be
needed_blocks=image_size/CACHE_BLOCK_SIZE;
if((image_size%CACHE_BLOCK_SIZE)!=0) needed_blocks++;
LOG_DEBUG("Cache blocks: %u (0x%04X) entries using %zd (0x%08zX) bytes\n",
needed_blocks,
needed_blocks,
needed_blocks*sizeof(t_CacheFileBlockIndex),
needed_blocks*sizeof(t_CacheFileBlockIndex))
if(is_new_cache_file==1) {
// Generate initial block cache index
blockindex_size=needed_blocks*sizeof(t_CacheFileBlockIndex);
XMOUNT_MALLOC(p_index_buf,t_CacheFileBlockIndex*,blockindex_size)
for(uint64_t i=0;i<needed_blocks;i++) {
*(p_index_buf+i)=CACHE_BLOCK_FREE;
}
gidafs_ret=GidaFsLib_WriteFile(glob_xmount.cache.h_cache_file,
glob_xmount.cache.h_block_cache_index,
0,
blockindex_size,
p_index_buf,
&written);
if(gidafs_ret!=eGidaFsError_None || written!=blockindex_size) {
LOG_ERROR("Unable to generate initial block cache index file '%s': "
"Error code %u!\n",
XMOUNT_CACHE_BLOCK_FILE,
gidafs_ret)
INITCACHEFILE__CLOSE_BLOCK_CACHE_INDEX;
INITCACHEFILE__CLOSE_BLOCK_CACHE;
INITCACHEFILE__CLOSE_CACHE;
free(p_index_buf);
return FALSE;
}
free(p_index_buf);
} else {
// Existing cache file, make sure block cache index has correct size
gidafs_ret=GidaFsLib_GetFileSize(glob_xmount.cache.h_cache_file,
glob_xmount.cache.h_block_cache_index,
&blockindex_size);
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to get block cache index file size: Error code %u!\n",
gidafs_ret)
INITCACHEFILE__CLOSE_BLOCK_CACHE_INDEX;
INITCACHEFILE__CLOSE_BLOCK_CACHE;
INITCACHEFILE__CLOSE_CACHE;
return FALSE;
}
if(blockindex_size!=(needed_blocks*sizeof(t_CacheFileBlockIndex))) {
// TODO: Be more helpfull in error message
LOG_ERROR("Block cache index size is incorrect for given input image!\n")
INITCACHEFILE__CLOSE_BLOCK_CACHE_INDEX;
INITCACHEFILE__CLOSE_BLOCK_CACHE;
INITCACHEFILE__CLOSE_CACHE;
return FALSE;
}
}
// TODO: Check if cache file has same block size as we do
#undef INITCACHEFILE__CLOSE_BLOCK_CACHE_INDEX
#undef INITCACHEFILE__CLOSE_BLOCK_CACHE
#undef INITCACHEFILE__CLOSE_CACHE
return TRUE;
}
//! Load input / morphing libs
/*!
* \return TRUE on success, FALSE on error
*/
static int LoadLibs() {
DIR *p_dir=NULL;
struct dirent *p_dirent=NULL;
int base_library_path_len=0;
char *p_library_path=NULL;
void *p_libxmount=NULL;
t_LibXmount_Input_GetApiVersion pfun_input_GetApiVersion;
t_LibXmount_Input_GetSupportedFormats pfun_input_GetSupportedFormats;
t_LibXmount_Input_GetFunctions pfun_input_GetFunctions;
t_LibXmount_Morphing_GetApiVersion pfun_morphing_GetApiVersion;
t_LibXmount_Morphing_GetSupportedTypes pfun_morphing_GetSupportedTypes;
t_LibXmount_Morphing_GetFunctions pfun_morphing_GetFunctions;
t_LibXmount_Output_GetApiVersion pfun_output_GetApiVersion;
t_LibXmount_Output_GetSupportedFormats pfun_output_GetSupportedFormats;
t_LibXmount_Output_GetFunctions pfun_output_GetFunctions;
const char *p_supported_formats=NULL;
const char *p_buf;
uint32_t supported_formats_len=0;
pts_InputLib p_input_lib=NULL;
pts_MorphingLib p_morphing_lib=NULL;
pts_OutputLib p_output_lib=NULL;
LOG_DEBUG("Searching for xmount libraries in '%s'.\n",
XMOUNT_LIBRARY_PATH);
// Open lib dir
p_dir=opendir(XMOUNT_LIBRARY_PATH);
if(p_dir==NULL) {
LOG_ERROR("Unable to access xmount library directory '%s'!\n",
XMOUNT_LIBRARY_PATH);
return FALSE;
}
// Construct base library path
base_library_path_len=strlen(XMOUNT_LIBRARY_PATH);
XMOUNT_STRSET(p_library_path,XMOUNT_LIBRARY_PATH);
if(XMOUNT_LIBRARY_PATH[base_library_path_len]!='/') {
base_library_path_len++;
XMOUNT_STRAPP(p_library_path,"/");
}
#define LIBXMOUNT_LOAD(path) { \
p_libxmount=dlopen(path,RTLD_NOW); \
if(p_libxmount==NULL) { \
LOG_ERROR("Unable to load input library '%s': %s!\n", \
path, \
dlerror()); \
continue; \
} \
}
#define LIBXMOUNT_LOAD_SYMBOL(name,pfun) { \
if((pfun=dlsym(p_libxmount,name))==NULL) { \
LOG_ERROR("Unable to load symbol '%s' from library '%s'!\n", \
name, \
p_library_path); \
dlclose(p_libxmount); \
p_libxmount=NULL; \
continue; \
} \
}
// Loop over lib dir
while((p_dirent=readdir(p_dir))!=NULL) {
LOG_DEBUG("Trying to load '%s'\n",p_dirent->d_name);
// Construct full path to found object
p_library_path=realloc(p_library_path,
base_library_path_len+strlen(p_dirent->d_name)+1);
if(p_library_path==NULL) {
LOG_ERROR("Couldn't allocate memory!\n");
exit(1);
}
strcpy(p_library_path+base_library_path_len,p_dirent->d_name);
if(strncmp(p_dirent->d_name,"libxmount_input_",16)==0) {
// Found possible input lib. Try to load it
LIBXMOUNT_LOAD(p_library_path);
// Load library symbols
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Input_GetApiVersion",
pfun_input_GetApiVersion);
// Check library's API version
if(pfun_input_GetApiVersion()!=LIBXMOUNT_INPUT_API_VERSION) {
LOG_DEBUG("Failed! Wrong API version.\n");
LOG_ERROR("Unable to load input library '%s'. Wrong API version\n",
p_library_path);
dlclose(p_libxmount);
continue;
}
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Input_GetSupportedFormats",
pfun_input_GetSupportedFormats);
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Input_GetFunctions",
pfun_input_GetFunctions);
// Construct new entry for our library list
XMOUNT_MALLOC(p_input_lib,pts_InputLib,sizeof(ts_InputLib));
// Initialize lib_functions structure to NULL
memset(&(p_input_lib->lib_functions),
0,
sizeof(ts_LibXmountInputFunctions));
// Set name and handle
XMOUNT_STRSET(p_input_lib->p_name,p_dirent->d_name);
p_input_lib->p_lib=p_libxmount;
// Get and set supported formats
p_supported_formats=pfun_input_GetSupportedFormats();
supported_formats_len=0;
p_buf=p_supported_formats;
while(*p_buf!='\0') {
supported_formats_len+=(strlen(p_buf)+1);
p_buf+=(strlen(p_buf)+1);
}
supported_formats_len++;
XMOUNT_MALLOC(p_input_lib->p_supported_input_types,
char*,
supported_formats_len);
memcpy(p_input_lib->p_supported_input_types,
p_supported_formats,
supported_formats_len);
// Get, set and check lib_functions
pfun_input_GetFunctions(&(p_input_lib->lib_functions));
if(p_input_lib->lib_functions.CreateHandle==NULL ||
p_input_lib->lib_functions.DestroyHandle==NULL ||
p_input_lib->lib_functions.Open==NULL ||
p_input_lib->lib_functions.Close==NULL ||
p_input_lib->lib_functions.Size==NULL ||
p_input_lib->lib_functions.Read==NULL ||
p_input_lib->lib_functions.OptionsHelp==NULL ||
p_input_lib->lib_functions.OptionsParse==NULL ||
p_input_lib->lib_functions.GetInfofileContent==NULL ||
p_input_lib->lib_functions.GetErrorMessage==NULL ||
p_input_lib->lib_functions.FreeBuffer==NULL)
{
LOG_DEBUG("Missing implemention of one or more functions in lib %s!\n",
p_dirent->d_name);
free(p_input_lib->p_supported_input_types);
free(p_input_lib->p_name);
free(p_input_lib);
dlclose(p_libxmount);
continue;
}
// Add entry to the input library list
XMOUNT_REALLOC(glob_xmount.input.pp_libs,
pts_InputLib*,
sizeof(pts_InputLib)*(glob_xmount.input.libs_count+1));
glob_xmount.input.pp_libs[glob_xmount.input.libs_count++]=p_input_lib;
LOG_DEBUG("Input library '%s' loaded successfully\n",p_dirent->d_name);
} if(strncmp(p_dirent->d_name,"libxmount_morphing_",19)==0) {
// Found possible morphing lib. Try to load it
LIBXMOUNT_LOAD(p_library_path);
// Load library symbols
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Morphing_GetApiVersion",
pfun_morphing_GetApiVersion);
// Check library's API version
if(pfun_morphing_GetApiVersion()!=LIBXMOUNT_MORPHING_API_VERSION) {
LOG_DEBUG("Failed! Wrong API version.\n");
LOG_ERROR("Unable to load morphing library '%s'. Wrong API version\n",
p_library_path);
dlclose(p_libxmount);
continue;
}
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Morphing_GetSupportedTypes",
pfun_morphing_GetSupportedTypes);
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Morphing_GetFunctions",
pfun_morphing_GetFunctions);
// Construct new entry for our library list
XMOUNT_MALLOC(p_morphing_lib,pts_MorphingLib,sizeof(ts_MorphingLib));
// Initialize lib_functions structure to NULL
memset(&(p_morphing_lib->lib_functions),
0,
sizeof(ts_LibXmountMorphingFunctions));
// Set name and handle
XMOUNT_STRSET(p_morphing_lib->p_name,p_dirent->d_name);
p_morphing_lib->p_lib=p_libxmount;
// Get and set supported types
p_supported_formats=pfun_morphing_GetSupportedTypes();
supported_formats_len=0;
p_buf=p_supported_formats;
while(*p_buf!='\0') {
supported_formats_len+=(strlen(p_buf)+1);
p_buf+=(strlen(p_buf)+1);
}
supported_formats_len++;
XMOUNT_MALLOC(p_morphing_lib->p_supported_morphing_types,
char*,
supported_formats_len);
memcpy(p_morphing_lib->p_supported_morphing_types,
p_supported_formats,
supported_formats_len);
// Get, set and check lib_functions
pfun_morphing_GetFunctions(&(p_morphing_lib->lib_functions));
if(p_morphing_lib->lib_functions.CreateHandle==NULL ||
p_morphing_lib->lib_functions.DestroyHandle==NULL ||
p_morphing_lib->lib_functions.Morph==NULL ||
p_morphing_lib->lib_functions.Size==NULL ||
p_morphing_lib->lib_functions.Read==NULL ||
p_morphing_lib->lib_functions.OptionsHelp==NULL ||
p_morphing_lib->lib_functions.OptionsParse==NULL ||
p_morphing_lib->lib_functions.GetInfofileContent==NULL ||
p_morphing_lib->lib_functions.GetErrorMessage==NULL ||
p_morphing_lib->lib_functions.FreeBuffer==NULL)
{
LOG_DEBUG("Missing implemention of one or more functions in lib %s!\n",
p_dirent->d_name);
free(p_morphing_lib->p_supported_morphing_types);
free(p_morphing_lib->p_name);
free(p_morphing_lib);
dlclose(p_libxmount);
continue;
}
// Add entry to the input library list
XMOUNT_REALLOC(glob_xmount.morphing.pp_libs,
pts_MorphingLib*,
sizeof(pts_MorphingLib)*
(glob_xmount.morphing.libs_count+1));
glob_xmount.morphing.pp_libs[glob_xmount.morphing.libs_count++]=
p_morphing_lib;
LOG_DEBUG("Morphing library '%s' loaded successfully\n",p_dirent->d_name);
} if(strncmp(p_dirent->d_name,"libxmount_output_",17)==0) {
// Found possible output lib. Try to load it
LIBXMOUNT_LOAD(p_library_path);
// Load library symbols
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Output_GetApiVersion",
pfun_output_GetApiVersion);
// Check library's API version
if(pfun_output_GetApiVersion()!=LIBXMOUNT_OUTPUT_API_VERSION) {
LOG_DEBUG("Failed! Wrong API version.\n");
LOG_ERROR("Unable to load output library '%s'. Wrong API version\n",
p_library_path);
dlclose(p_libxmount);
continue;
}
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Output_GetSupportedFormats",
pfun_output_GetSupportedFormats);
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Output_GetFunctions",
pfun_output_GetFunctions);
// Construct new entry for our library list
XMOUNT_MALLOC(p_output_lib,pts_OutputLib,sizeof(ts_OutputLib));
// Initialize lib_functions structure to NULL
memset(&(p_output_lib->lib_functions),
0,
sizeof(ts_LibXmountOutput_Functions));
// Set name and handle
XMOUNT_STRSET(p_output_lib->p_name,p_dirent->d_name);
p_output_lib->p_lib=p_libxmount;
// Get and set supported types
p_supported_formats=pfun_output_GetSupportedFormats();
supported_formats_len=0;
p_buf=p_supported_formats;
while(*p_buf!='\0') {
supported_formats_len+=(strlen(p_buf)+1);
p_buf+=(strlen(p_buf)+1);
}
supported_formats_len++;
XMOUNT_MALLOC(p_output_lib->p_supported_output_formats,
char*,
supported_formats_len);
memcpy(p_output_lib->p_supported_output_formats,
p_supported_formats,
supported_formats_len);
// Get, set and check lib_functions
pfun_output_GetFunctions(&(p_output_lib->lib_functions));
if(p_output_lib->lib_functions.CreateHandle==NULL ||
p_output_lib->lib_functions.DestroyHandle==NULL ||
p_output_lib->lib_functions.Transform==NULL ||
p_output_lib->lib_functions.Size==NULL ||
p_output_lib->lib_functions.Read==NULL ||
p_output_lib->lib_functions.Write==NULL ||
p_output_lib->lib_functions.OptionsHelp==NULL ||
p_output_lib->lib_functions.OptionsParse==NULL ||
p_output_lib->lib_functions.GetInfofileContent==NULL ||
p_output_lib->lib_functions.GetErrorMessage==NULL ||
p_output_lib->lib_functions.FreeBuffer==NULL)
{
LOG_DEBUG("Missing implemention of one or more functions in lib %s!\n",
p_dirent->d_name);
free(p_output_lib->p_supported_output_formats);
free(p_output_lib->p_name);
free(p_output_lib);
dlclose(p_libxmount);
continue;
}
// Add entry to the input library list
XMOUNT_REALLOC(glob_xmount.output.pp_libs,
pts_OutputLib*,
sizeof(pts_OutputLib)*
(glob_xmount.output.libs_count+1));
glob_xmount.output.pp_libs[glob_xmount.output.libs_count++]=
p_output_lib;
LOG_DEBUG("Output library '%s' loaded successfully\n",p_dirent->d_name);
} else {
LOG_DEBUG("Ignoring '%s'.\n",p_dirent->d_name);
continue;
}
}
#undef LIBXMOUNT_LOAD_SYMBOL
#undef LIBXMOUNT_LOAD
LOG_DEBUG("A total of %u input libs, %u morphing libs and %u output libs "
"were loaded.\n",
glob_xmount.input.libs_count,
glob_xmount.morphing.libs_count,
glob_xmount.output.libs_count);
free(p_library_path);
closedir(p_dir);
return ((glob_xmount.input.libs_count>0 &&
glob_xmount.morphing.libs_count>0 &&
glob_xmount.output.libs_count>0) ? TRUE : FALSE);
}
//! Search an appropriate input lib for specified input type
/*!
* \param p_input_image Input image to search input lib for
* \return TRUE on success, FALSE on error
*/
static int FindInputLib(pts_InputImage p_input_image) {
char *p_buf;
LOG_DEBUG("Trying to find suitable library for input type '%s'.\n",
p_input_image->p_type);
// Loop over all loaded libs
for(uint32_t i=0;i<glob_xmount.input.libs_count;i++) {
LOG_DEBUG("Checking input library %s\n",
glob_xmount.input.pp_libs[i]->p_name);
p_buf=glob_xmount.input.pp_libs[i]->p_supported_input_types;
while(*p_buf!='\0') {
if(strcmp(p_buf,p_input_image->p_type)==0) {
// Library supports input type, set lib functions
LOG_DEBUG("Input library '%s' pretends to handle that input type.\n",
glob_xmount.input.pp_libs[i]->p_name);
p_input_image->p_functions=
&(glob_xmount.input.pp_libs[i]->lib_functions);
return TRUE;
}
p_buf+=(strlen(p_buf)+1);
}
}
LOG_DEBUG("Couldn't find any suitable library.\n");
// No library supporting input type found
return FALSE;
}
//! Search an appropriate morphing lib for the specified morph type
/*!
* \return TRUE on success, FALSE on error
*/
static int FindMorphingLib() {
char *p_buf;
LOG_DEBUG("Trying to find suitable library for morph type '%s'.\n",
glob_xmount.morphing.p_morph_type);
// Loop over all loaded libs
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
LOG_DEBUG("Checking morphing library %s\n",
glob_xmount.morphing.pp_libs[i]->p_name);
p_buf=glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types;
while(*p_buf!='\0') {
if(strcmp(p_buf,glob_xmount.morphing.p_morph_type)==0) {
// Library supports morph type, set lib functions
LOG_DEBUG("Morphing library '%s' pretends to handle that morph type.\n",
glob_xmount.morphing.pp_libs[i]->p_name);
glob_xmount.morphing.p_functions=
&(glob_xmount.morphing.pp_libs[i]->lib_functions);
return TRUE;
}
p_buf+=(strlen(p_buf)+1);
}
}
LOG_DEBUG("Couldn't find any suitable library.\n");
// No library supporting morph type found
return FALSE;
}
//! Search an appropriate output lib for the specified output format
/*!
* \return TRUE on success, FALSE on error
*/
static int FindOutputLib() {
char *p_buf;
LOG_DEBUG("Trying to find suitable library for output format '%s'.\n",
glob_xmount.output.p_output_format);
// Loop over all loaded output libs
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
LOG_DEBUG("Checking output library %s\n",
glob_xmount.output.pp_libs[i]->p_name);
p_buf=glob_xmount.output.pp_libs[i]->p_supported_output_formats;
while(*p_buf!='\0') {
if(strcmp(p_buf,glob_xmount.output.p_output_format)==0) {
// Library supports output type, set lib functions
LOG_DEBUG("Output library '%s' pretends to handle that output format.\n",
glob_xmount.output.pp_libs[i]->p_name);
glob_xmount.output.p_functions=
&(glob_xmount.output.pp_libs[i]->lib_functions);
return TRUE;
}
p_buf+=(strlen(p_buf)+1);
}
}
LOG_DEBUG("Couldn't find any suitable library.\n");
// No library supporting output format found
return FALSE;
}
static void InitResources() {
// Input
glob_xmount.input.libs_count=0;
glob_xmount.input.pp_libs=NULL;
glob_xmount.input.lib_params_count=0;
glob_xmount.input.pp_lib_params=NULL;
glob_xmount.input.images_count=0;
glob_xmount.input.pp_images=NULL;
glob_xmount.input.image_offset=0;
glob_xmount.input.image_size_limit=0;
glob_xmount.input.image_hash_lo=0;
glob_xmount.input.image_hash_hi=0;
// Morphing
glob_xmount.morphing.libs_count=0;
glob_xmount.morphing.pp_libs=NULL;
glob_xmount.morphing.p_morph_type=NULL;
glob_xmount.morphing.lib_params_count=0;
glob_xmount.morphing.pp_lib_params=NULL;
glob_xmount.morphing.p_handle=NULL;
glob_xmount.morphing.p_functions=NULL;
glob_xmount.morphing.input_image_functions.ImageCount=
&LibXmount_Morphing_ImageCount;
glob_xmount.morphing.input_image_functions.Size=&LibXmount_Morphing_Size;
glob_xmount.morphing.input_image_functions.Read=&LibXmount_Morphing_Read;
// Cache
glob_xmount.cache.overwrite_cache=FALSE;
glob_xmount.cache.p_cache_file=NULL;
glob_xmount.cache.h_cache_file=NULL;
glob_xmount.cache.h_block_cache=NULL;
glob_xmount.cache.h_block_cache_index=NULL;
- // TODO: Remove
- glob_xmount.cache.h_old_cache_file=NULL;
- glob_xmount.cache.p_cache_header=NULL;
- glob_xmount.cache.p_cache_blkidx=NULL;
// Output
glob_xmount.output.libs_count=0;
glob_xmount.output.pp_libs=NULL;
glob_xmount.output.p_output_format=NULL;
glob_xmount.output.lib_params_count=0;
glob_xmount.output.pp_lib_params=NULL;
glob_xmount.output.p_handle=NULL;
glob_xmount.output.p_functions=NULL;
glob_xmount.output.input_functions.Size=&LibXmount_Output_Size;
glob_xmount.output.input_functions.Read=&LibXmount_Output_Read;
glob_xmount.output.input_functions.Write=&LibXmount_Output_Write;
-#ifndef __APPLE__
- glob_xmount.output.VirtImageType=VirtImageType_DD;
-#else
- glob_xmount.output.VirtImageType=VirtImageType_DMG;
-#endif
glob_xmount.output.image_size=0;
glob_xmount.output.writable=FALSE;
glob_xmount.output.p_virtual_image_path=NULL;
glob_xmount.output.p_info_path=NULL;
glob_xmount.output.p_info_file=NULL;
- glob_xmount.output.vdi.vdi_header_size=0;
- glob_xmount.output.vdi.p_vdi_header=NULL;
- glob_xmount.output.vdi.vdi_block_map_size=0;
- glob_xmount.output.vdi.p_vdi_block_map=NULL;
- glob_xmount.output.vhd.p_vhd_header=NULL;
- glob_xmount.output.vmdk.p_virtual_vmdk_path=NULL;
- glob_xmount.output.vmdk.p_vmdk_file=NULL;
- glob_xmount.output.vmdk.vmdk_file_size=0;
- glob_xmount.output.vmdk.p_vmdk_lockdir1=NULL;
- glob_xmount.output.vmdk.p_vmdk_lockdir2=NULL;
- glob_xmount.output.vmdk.p_vmdk_lockfile_data=NULL;
- glob_xmount.output.vmdk.vmdk_lockfile_size=0;
- glob_xmount.output.vmdk.p_vmdk_lockfile_name=NULL;
// Misc data
glob_xmount.debug=FALSE;
glob_xmount.may_set_fuse_allow_other=FALSE;
glob_xmount.fuse_argc=0;
glob_xmount.pp_fuse_argv=NULL;
glob_xmount.p_mountpoint=NULL;
}
/*
* FreeResources
*/
static void FreeResources() {
int ret;
teGidaFsError gidafs_ret=eGidaFsError_None;
LOG_DEBUG("Freeing all resources\n");
// Misc
if(glob_xmount.pp_fuse_argv!=NULL) {
for(int i=0;i<glob_xmount.fuse_argc;i++) free(glob_xmount.pp_fuse_argv[i]);
free(glob_xmount.pp_fuse_argv);
}
if(glob_xmount.p_mountpoint!=NULL) free(glob_xmount.p_mountpoint);
// Output
if(glob_xmount.output.p_functions!=NULL) {
if(glob_xmount.output.p_handle!=NULL) {
// Destroy output handle
ret=glob_xmount.output.p_functions->
DestroyHandle(&(glob_xmount.output.p_handle));
if(ret!=0) {
LOG_ERROR("Unable to destroy output handle: %s!\n",
glob_xmount.output.p_functions->GetErrorMessage(ret));
}
}
}
if(glob_xmount.output.pp_lib_params!=NULL) {
for(uint32_t i=0;i<glob_xmount.output.lib_params_count;i++)
free(glob_xmount.output.pp_lib_params[i]);
free(glob_xmount.output.pp_lib_params);
}
if(glob_xmount.output.p_output_format!=NULL)
free(glob_xmount.output.p_output_format);
if(glob_xmount.output.pp_libs!=NULL) {
// Unload output libs
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
if(glob_xmount.output.pp_libs[i]==NULL) continue;
if(glob_xmount.output.pp_libs[i]->p_supported_output_formats!=NULL)
free(glob_xmount.output.pp_libs[i]->p_supported_output_formats);
if(glob_xmount.output.pp_libs[i]->p_lib!=NULL)
dlclose(glob_xmount.output.pp_libs[i]->p_lib);
if(glob_xmount.output.pp_libs[i]->p_name!=NULL)
free(glob_xmount.output.pp_libs[i]->p_name);
free(glob_xmount.output.pp_libs[i]);
}
free(glob_xmount.output.pp_libs);
}
- if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL)
- free(glob_xmount.output.vmdk.p_vmdk_lockfile_name);
- if(glob_xmount.output.vmdk.p_vmdk_lockfile_data!=NULL)
- free(glob_xmount.output.vmdk.p_vmdk_lockfile_data);
- if(glob_xmount.output.vmdk.p_vmdk_lockdir2!=NULL)
- free(glob_xmount.output.vmdk.p_vmdk_lockdir2);
- if(glob_xmount.output.vmdk.p_vmdk_lockdir1!=NULL)
- free(glob_xmount.output.vmdk.p_vmdk_lockdir1);
- if(glob_xmount.output.vmdk.p_vmdk_file!=NULL)
- free(glob_xmount.output.vmdk.p_vmdk_file);
- if(glob_xmount.output.vmdk.p_virtual_vmdk_path!=NULL)
- free(glob_xmount.output.vmdk.p_virtual_vmdk_path);
if(glob_xmount.output.p_info_path!=NULL)
free(glob_xmount.output.p_info_path);
if(glob_xmount.output.p_info_file!=NULL)
free(glob_xmount.output.p_info_file);
- if(glob_xmount.output.vhd.p_vhd_header!=NULL)
- free(glob_xmount.output.vhd.p_vhd_header);
- if(glob_xmount.output.vdi.p_vdi_header!=NULL)
- free(glob_xmount.output.vdi.p_vdi_header);
if(glob_xmount.output.p_virtual_image_path!=NULL)
free(glob_xmount.output.p_virtual_image_path);
// Cache
if(glob_xmount.cache.h_cache_file!=NULL) {
if(glob_xmount.cache.h_block_cache_index!=NULL) {
gidafs_ret=GidaFsLib_CloseFile(glob_xmount.cache.h_cache_file,
&(glob_xmount.cache.h_block_cache_index));
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to close block cache index file: Error code %u: "
"Ignoring!\n",
gidafs_ret)
}
}
if(glob_xmount.cache.h_block_cache!=NULL) {
gidafs_ret=GidaFsLib_CloseFile(glob_xmount.cache.h_cache_file,
&(glob_xmount.cache.h_block_cache));
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to close block cache file: Error code %u: "
"Ignoring!\n",
gidafs_ret)
}
}
gidafs_ret=GidaFsLib_CloseFs(&(glob_xmount.cache.h_cache_file));
if(gidafs_ret!=eGidaFsError_None) {
LOG_ERROR("Unable to close cache file: Error code %u: Ignoring!\n",
gidafs_ret)
}
}
if(glob_xmount.cache.p_cache_file!=NULL) free(glob_xmount.cache.p_cache_file);
// Morphing
if(glob_xmount.morphing.p_functions!=NULL) {
if(glob_xmount.morphing.p_handle!=NULL) {
// Destroy morphing handle
ret=glob_xmount.morphing.p_functions->
DestroyHandle(&(glob_xmount.morphing.p_handle));
if(ret!=0) {
LOG_ERROR("Unable to destroy morphing handle: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
}
}
}
if(glob_xmount.morphing.pp_lib_params!=NULL) {
for(uint32_t i=0;i<glob_xmount.morphing.lib_params_count;i++)
free(glob_xmount.morphing.pp_lib_params[i]);
free(glob_xmount.morphing.pp_lib_params);
}
if(glob_xmount.morphing.p_morph_type!=NULL)
free(glob_xmount.morphing.p_morph_type);
if(glob_xmount.morphing.pp_libs!=NULL) {
// Unload morphing libs
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
if(glob_xmount.morphing.pp_libs[i]==NULL) continue;
if(glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types!=NULL)
free(glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types);
if(glob_xmount.morphing.pp_libs[i]->p_lib!=NULL)
dlclose(glob_xmount.morphing.pp_libs[i]->p_lib);
if(glob_xmount.morphing.pp_libs[i]->p_name!=NULL)
free(glob_xmount.morphing.pp_libs[i]->p_name);
free(glob_xmount.morphing.pp_libs[i]);
}
free(glob_xmount.morphing.pp_libs);
}
// Input
if(glob_xmount.input.pp_images!=NULL) {
// Close all input images
for(uint64_t i=0;i<glob_xmount.input.images_count;i++) {
if(glob_xmount.input.pp_images[i]==NULL) continue;
if(glob_xmount.input.pp_images[i]->p_functions!=NULL) {
if(glob_xmount.input.pp_images[i]->p_handle!=NULL) {
ret=glob_xmount.input.pp_images[i]->p_functions->
Close(glob_xmount.input.pp_images[i]->p_handle);
if(ret!=0) {
LOG_ERROR("Unable to close input image: %s\n",
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
}
ret=glob_xmount.input.pp_images[i]->p_functions->
DestroyHandle(&(glob_xmount.input.pp_images[i]->p_handle));
if(ret!=0) {
LOG_ERROR("Unable to destroy input image handle: %s\n",
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
}
}
}
if(glob_xmount.input.pp_images[i]->pp_files!=NULL) {
for(uint64_t ii=0;ii<glob_xmount.input.pp_images[i]->files_count;ii++) {
if(glob_xmount.input.pp_images[i]->pp_files[ii]!=NULL)
free(glob_xmount.input.pp_images[i]->pp_files[ii]);
}
free(glob_xmount.input.pp_images[i]->pp_files);
}
if(glob_xmount.input.pp_images[i]->p_type!=NULL)
free(glob_xmount.input.pp_images[i]->p_type);
free(glob_xmount.input.pp_images[i]);
}
free(glob_xmount.input.pp_images);
}
if(glob_xmount.input.pp_lib_params!=NULL) {
for(uint32_t i=0;i<glob_xmount.input.lib_params_count;i++)
free(glob_xmount.input.pp_lib_params[i]);
free(glob_xmount.input.pp_lib_params);
}
if(glob_xmount.input.pp_libs!=NULL) {
// Unload all input libs
for(uint32_t i=0;i<glob_xmount.input.libs_count;i++) {
if(glob_xmount.input.pp_libs[i]->p_supported_input_types!=NULL)
free(glob_xmount.input.pp_libs[i]->p_supported_input_types);
if(glob_xmount.input.pp_libs[i]->p_lib!=NULL)
dlclose(glob_xmount.input.pp_libs[i]->p_lib);
if(glob_xmount.input.pp_libs[i]->p_name!=NULL)
free(glob_xmount.input.pp_libs[i]->p_name);
free(glob_xmount.input.pp_libs[i]);
}
free(glob_xmount.input.pp_libs);
}
// Before we return, initialize everything in case ReleaseResources would be
// called again.
InitResources();
}
//! Function to split given library options
static int SplitLibraryParameters(char *p_params,
uint32_t *p_ret_opts_count,
pts_LibXmountOptions **ppp_ret_opt)
{
pts_LibXmountOptions p_opts=NULL;
pts_LibXmountOptions *pp_opts=NULL;
uint32_t params_len;
uint32_t opts_count=0;
uint32_t sep_pos=0;
char *p_buf=p_params;
if(p_params==NULL) return FALSE;
// Get params length
params_len=strlen(p_params);
// Return if no params specified
if(params_len==0) {
*ppp_ret_opt=NULL;
p_ret_opts_count=0;
return TRUE;
}
// Split params
while(*p_buf!='\0') {
XMOUNT_MALLOC(p_opts,pts_LibXmountOptions,sizeof(ts_LibXmountOptions));
p_opts->valid=0;
#define FREE_PP_OPTS() { \
if(pp_opts!=NULL) { \
for(uint32_t i=0;i<opts_count;i++) free(pp_opts[i]); \
free(pp_opts); \
} \
}
// Search next assignment operator
sep_pos=0;
while(p_buf[sep_pos]!='\0' && p_buf[sep_pos]!='=') sep_pos++;
if(sep_pos==0 || p_buf[sep_pos]=='\0') {
LOG_ERROR("Library parameter '%s' is missing an assignment operator!\n",
p_buf);
free(p_opts);
FREE_PP_OPTS();
return FALSE;
}
// Save option key
XMOUNT_STRNSET(p_opts->p_key,p_buf,sep_pos);
p_buf+=(sep_pos+1);
// Search next separator
sep_pos=0;
while(p_buf[sep_pos]!='\0' && p_buf[sep_pos]!=',') sep_pos++;
if(sep_pos==0) {
LOG_ERROR("Library parameter '%s' is not of format key=value!\n",
p_opts->p_key);
free(p_opts->p_key);
free(p_opts);
FREE_PP_OPTS();
return FALSE;
}
// Save option value
XMOUNT_STRNSET(p_opts->p_value,p_buf,sep_pos);
p_buf+=sep_pos;
LOG_DEBUG("Extracted library option: '%s' = '%s'\n",
p_opts->p_key,
p_opts->p_value);
#undef FREE_PP_OPTS
// Add current option to return array
XMOUNT_REALLOC(pp_opts,
pts_LibXmountOptions*,
sizeof(pts_LibXmountOptions)*(opts_count+1));
pp_opts[opts_count++]=p_opts;
// If we're not at the end of p_params, skip over separator for next run
if(*p_buf!='\0') p_buf++;
}
LOG_DEBUG("Extracted a total of %" PRIu32 " library options\n",opts_count);
*p_ret_opts_count=opts_count;
*ppp_ret_opt=pp_opts;
return TRUE;
}
/*******************************************************************************
* LibXmount_Morphing function implementation
******************************************************************************/
//! Function to get the amount of input images
/*!
* \param p_count Count of input images
* \return 0 on success
*/
static int LibXmount_Morphing_ImageCount(uint64_t *p_count) {
*p_count=glob_xmount.input.images_count;
return 0;
}
//! Function to get the size of the morphed data
/*!
* \param image Image number
* \param p_size Pointer to store input image's size to
* \return 0 on success
*/
static int LibXmount_Morphing_Size(uint64_t image, uint64_t *p_size) {
if(image>=glob_xmount.input.images_count) return -1;
*p_size=glob_xmount.input.pp_images[image]->size;
return 0;
}
//! Function to read data from input image
/*!
* \param image Image number
* \param p_buf Buffer to store read data to
* \param offset Position at which to start reading
* \param count Amount of bytes to read
* \param p_read Number of read bytes on success
* \return 0 on success or negated error code on error
*/
static int LibXmount_Morphing_Read(uint64_t image,
- char *p_buf,
- off_t offset,
- size_t count,
- size_t *p_read)
+ char *p_buf,
+ off_t offset,
+ size_t count,
+ size_t *p_read)
{
if(image>=glob_xmount.input.images_count) return -EIO;
return GetInputImageData(glob_xmount.input.pp_images[image],
p_buf,
offset,
count,
p_read);
}
/*******************************************************************************
* LibXmount_Output function implementation
******************************************************************************/
//! Function to get the size of the morphed image
/*!
* \param p_size Pointer to store morphed image's size to
* \return 0 on success
*/
static int LibXmount_Output_Size(uint64_t *p_size) {
return glob_xmount.output.p_functions->Size(glob_xmount.output.p_handle,
p_size);
}
//! Function to read data from the morphed image
/*!
* \param p_buf Buffer to store read data to
* \param offset Position at which to start reading
* \param count Amount of bytes to read
* \param p_read Number of read bytes on success
* \return 0 on success or negated error code on error
*/
static int LibXmount_Output_Read(char *p_buf,
off_t offset,
size_t count,
size_t *p_read)
{
return glob_xmount.morphing.p_functions->Read(glob_xmount.output.p_handle,
p_buf,
offset,
count,
p_read);
}
//! Function to write data to the morphed image
/*!
* \param p_buf Buffer with data to write
* \param offset Position at which to start writing
* \param count Amount of bytes to write
* \param p_written Number of written bytes on success
* \return 0 on success or negated error code on error
*/
static int LibXmount_Output_Write(char *p_buf,
off_t offset,
size_t count,
size_t *p_written)
{
// TODO: Implement !!!
return -EIO;
}
/*******************************************************************************
* FUSE function implementation
******************************************************************************/
//! FUSE access implementation
/*!
* \param p_path Path of file to get attributes from
* \param perm Requested permissisons
* \return 0 on success, negated error code on error
*/
/*
static int FuseAccess(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;
}
*/
//! FUSE getattr implementation
/*!
* \param p_path Path of file to get attributes from
* \param p_stat Pointer to stat structure to save attributes to
* \return 0 on success, negated error code on error
*/
static int FuseGetAttr(const char *p_path, struct stat *p_stat) {
memset(p_stat,0,sizeof(struct stat));
if(strcmp(p_path,"/")==0) {
// Attributes of mountpoint
p_stat->st_mode=S_IFDIR | 0777;
p_stat->st_nlink=2;
} else if(strcmp(p_path,glob_xmount.output.p_virtual_image_path)==0) {
// Attributes of virtual image
if(!glob_xmount.output.writable) p_stat->st_mode=S_IFREG | 0444;
else p_stat->st_mode=S_IFREG | 0666;
p_stat->st_nlink=1;
- // Get virtual image file size
- if(!GetVirtImageSize((uint64_t*)&(p_stat->st_size))) {
+ // Get output image file size
+ if(!GetOutputImageSize((uint64_t*)&(p_stat->st_size))) {
LOG_ERROR("Couldn't get image size!\n");
return -ENOENT;
}
- if(glob_xmount.output.VirtImageType==VirtImageType_VHD) {
- // Make sure virtual image seems to be fully allocated (not sparse file).
- // Without this, Windows won't attach the vhd file!
- p_stat->st_blocks=p_stat->st_size/512;
- if(p_stat->st_size%512!=0) p_stat->st_blocks++;
- }
+ // Make sure virtual image seems to be fully allocated (not sparse file).
+ p_stat->st_blocks=p_stat->st_size/512;
+ if(p_stat->st_size%512!=0) p_stat->st_blocks++;
} else if(strcmp(p_path,glob_xmount.output.p_info_path)==0) {
// Attributes of virtual image info file
p_stat->st_mode=S_IFREG | 0444;
p_stat->st_nlink=1;
// Get virtual image info file size
if(glob_xmount.output.p_info_file!=NULL) {
p_stat->st_size=strlen(glob_xmount.output.p_info_file);
} else p_stat->st_size=0;
- } else if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- // Some special files only present when emulating VMDK files
- if(strcmp(p_path,glob_xmount.output.vmdk.p_virtual_vmdk_path)==0) {
- // Attributes of virtual vmdk file
- if(!glob_xmount.output.writable) p_stat->st_mode=S_IFREG | 0444;
- else p_stat->st_mode=S_IFREG | 0666;
- p_stat->st_nlink=1;
- // Get virtual image info file size
- if(glob_xmount.output.vmdk.p_vmdk_file!=NULL) {
- p_stat->st_size=glob_xmount.output.vmdk.vmdk_file_size;
- } else p_stat->st_size=0;
- } else if(glob_xmount.output.vmdk.p_vmdk_lockdir1!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockdir1)==0)
- {
- p_stat->st_mode=S_IFDIR | 0777;
- p_stat->st_nlink=2;
- } else if(glob_xmount.output.vmdk.p_vmdk_lockdir2!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockdir2)==0)
- {
- p_stat->st_mode=S_IFDIR | 0777;
- p_stat->st_nlink=2;
- } else if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockfile_name)==0)
- {
- p_stat->st_mode=S_IFREG | 0666;
- if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL) {
- p_stat->st_size=strlen(glob_xmount.output.vmdk.p_vmdk_lockfile_name);
- } else p_stat->st_size=0;
- } else return -ENOENT;
} else return -ENOENT;
// Set uid and gid of all files to uid and gid of current process
p_stat->st_uid=getuid();
p_stat->st_gid=getgid();
return 0;
}
//! FUSE mkdir implementation
/*!
* \param p_path Directory path
* \param mode Directory permissions
* \return 0 on success, negated error code on error
*/
static int FuseMkDir(const char *p_path, mode_t mode) {
- // Only allow creation of VMWare's lock directories
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- if(glob_xmount.output.vmdk.p_vmdk_lockdir1==NULL) {
- char aVmdkLockDir[strlen(glob_xmount.output.vmdk.p_virtual_vmdk_path)+5];
- sprintf(aVmdkLockDir,
- "%s.lck",
- glob_xmount.output.vmdk.p_virtual_vmdk_path);
- if(strcmp(p_path,aVmdkLockDir)==0) {
- LOG_DEBUG("Creating virtual directory \"%s\"\n",aVmdkLockDir)
- XMOUNT_STRSET(glob_xmount.output.vmdk.p_vmdk_lockdir1,aVmdkLockDir)
- return 0;
- } else {
- LOG_ERROR("Attempt to create illegal directory \"%s\"!\n",p_path)
- LOG_DEBUG("Supposed: %s\n",aVmdkLockDir)
- return -1;
- }
- } else if(glob_xmount.output.vmdk.p_vmdk_lockdir2==NULL &&
- strncmp(p_path,
- glob_xmount.output.vmdk.p_vmdk_lockdir1,
- strlen(glob_xmount.output.vmdk.p_vmdk_lockdir1))==0)
- {
- LOG_DEBUG("Creating virtual directory \"%s\"\n",p_path)
- XMOUNT_STRSET(glob_xmount.output.vmdk.p_vmdk_lockdir2,p_path)
- return 0;
- } else {
- LOG_ERROR("Attempt to create illegal directory \"%s\"!\n",p_path)
- LOG_DEBUG("Compared to first %u chars of \"%s\"\n",
- strlen(glob_xmount.output.vmdk.p_vmdk_lockdir1),
- glob_xmount.output.vmdk.p_vmdk_lockdir1)
- return -1;
- }
- }
+ // TODO: Implement
LOG_ERROR("Attempt to create directory \"%s\" "
"on read-only filesystem!\n",p_path)
return -1;
}
//! FUSE create implementation.
/*!
- * Currently only allows to create VMWare's lock file
- *
* \param p_path File to create
* \param mode File mode
* \param dev ??? but not used
* \return 0 on success, negated error code on error
*/
static int FuseMkNod(const char *p_path, mode_t mode, dev_t dev) {
- if((glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS) &&
- glob_xmount.output.vmdk.p_vmdk_lockdir1!=NULL &&
- glob_xmount.output.vmdk.p_vmdk_lockfile_name==NULL)
- {
- LOG_DEBUG("Creating virtual file \"%s\"\n",p_path)
- XMOUNT_STRSET(glob_xmount.output.vmdk.p_vmdk_lockfile_name,p_path);
- return 0;
- } else {
- LOG_ERROR("Attempt to create illegal file \"%s\"\n",p_path)
- return -1;
- }
+ // TODO: Implement
+ LOG_ERROR("Attempt to create illegal file \"%s\"\n",p_path)
+ return -1;
}
//! FUSE readdir implementation
/*!
* \param p_path Path from where files should be listed
* \param p_buf Buffer to write file entrys to
* \param filler Function to write dir entrys to buffer
* \param offset ??? but not used
* \param p_fi File info struct
* \return 0 on success, negated error code on error
*/
static int FuseReadDir(const char *p_path,
void *p_buf,
fuse_fill_dir_t filler,
off_t offset,
struct fuse_file_info *p_fi)
{
// Ignore some params
(void)offset;
(void)p_fi;
if(strcmp(p_path,"/")==0) {
// Add std . and .. entrys
filler(p_buf,".",NULL,0);
filler(p_buf,"..",NULL,0);
// Add our virtual files (p+1 to ignore starting "/")
filler(p_buf,glob_xmount.output.p_virtual_image_path+1,NULL,0);
filler(p_buf,glob_xmount.output.p_info_path+1,NULL,0);
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- // For VMDK's, we use an additional descriptor file
- filler(p_buf,glob_xmount.output.vmdk.p_virtual_vmdk_path+1,NULL,0);
- // And there could also be a lock directory
- if(glob_xmount.output.vmdk.p_vmdk_lockdir1!=NULL) {
- filler(p_buf,glob_xmount.output.vmdk.p_vmdk_lockdir1+1,NULL,0);
- }
- }
- } else if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- // For VMDK emulation, there could be a lock directory
- if(glob_xmount.output.vmdk.p_vmdk_lockdir1!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockdir1)==0)
- {
- filler(p_buf,".",NULL,0);
- filler(p_buf,"..",NULL,0);
- if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL) {
- filler(p_buf,
- glob_xmount.output.vmdk.p_vmdk_lockfile_name+
- strlen(glob_xmount.output.vmdk.p_vmdk_lockdir1)+1,
- NULL,
- 0);
- }
- } else if(glob_xmount.output.vmdk.p_vmdk_lockdir2!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockdir2)==0)
- {
- filler(p_buf,".",NULL,0);
- filler(p_buf,"..",NULL,0);
- } else return -ENOENT;
} else return -ENOENT;
return 0;
}
//! FUSE open implementation
/*!
* \param p_path Path to file to open
* \param p_fi File info struct
* \return 0 on success, negated error code on error
*/
static int FuseOpen(const char *p_path, struct fuse_file_info *p_fi) {
#define CHECK_OPEN_PERMS() { \
if(!glob_xmount.output.writable && (p_fi->flags & 3)!=O_RDONLY) { \
LOG_DEBUG("Attempt to open the read-only file \"%s\" for writing.\n", \
p_path) \
return -EACCES; \
} \
return 0; \
}
if(strcmp(p_path,glob_xmount.output.p_virtual_image_path)==0 ||
strcmp(p_path,glob_xmount.output.p_info_path)==0)
{
CHECK_OPEN_PERMS();
- } else if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- if(strcmp(p_path,glob_xmount.output.vmdk.p_virtual_vmdk_path)==0 ||
- (glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockfile_name)==0))
- {
- CHECK_OPEN_PERMS();
- }
}
#undef CHECK_OPEN_PERMS
LOG_DEBUG("Attempt to open inexistant file \"%s\".\n",p_path);
return -ENOENT;
}
//! FUSE read implementation
/*!
* \param p_path Path (relative to mount folder) of file to read data from
* \param p_buf Pre-allocated buffer where read data should be written to
* \param size Number of bytes to read
* \param offset Offset to start reading at
* \param p_fi: File info struct
* \return Read bytes on success, negated error code on error
*/
static int FuseRead(const char *p_path,
char *p_buf,
size_t size,
off_t offset,
struct fuse_file_info *p_fi)
{
(void)p_fi;
int ret;
uint64_t len;
#define READ_MEM_FILE(filebuf,filesize,filetypestr,mutex) { \
len=filesize; \
if(offset<len) { \
if(offset+size>len) { \
LOG_DEBUG("Attempt to read past EOF of virtual " filetypestr " file\n"); \
LOG_DEBUG("Adjusting read size from %u to %u\n",size,len-offset); \
size=len-offset; \
} \
pthread_mutex_lock(&mutex); \
memcpy(p_buf,filebuf+offset,size); \
pthread_mutex_unlock(&mutex); \
LOG_DEBUG("Read %" PRIu64 " bytes at offset %" PRIu64 \
" from virtual " filetypestr " file\n",size,offset); \
ret=size; \
} else { \
LOG_DEBUG("Attempt to read behind EOF of virtual " filetypestr " file\n"); \
ret=0; \
} \
}
if(strcmp(p_path,glob_xmount.output.p_virtual_image_path)==0) {
// Read data from virtual output file
// Wait for other threads to end reading/writing data
pthread_mutex_lock(&(glob_xmount.mutex_image_rw));
// Get requested data
- if((ret=GetVirtImageData(p_buf,offset,size))<0) {
+ if((ret=ReadOutputImageData(p_buf,offset,size))<0) {
LOG_ERROR("Couldn't read data from virtual image file!\n")
}
// Allow other threads to read/write data again
pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
} else if(strcmp(p_path,glob_xmount.output.p_info_path)==0) {
// Read data from virtual info file
READ_MEM_FILE(glob_xmount.output.p_info_file,
strlen(glob_xmount.output.p_info_file),
"info",
glob_xmount.mutex_info_read);
- } else if(strcmp(p_path,glob_xmount.output.vmdk.p_virtual_vmdk_path)==0) {
- // Read data from virtual vmdk file
- READ_MEM_FILE(glob_xmount.output.vmdk.p_vmdk_file,
- glob_xmount.output.vmdk.vmdk_file_size,
- "vmdk",
- glob_xmount.mutex_image_rw);
- } else if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockfile_name)==0)
- {
- // Read data from virtual lock file
- READ_MEM_FILE(glob_xmount.output.vmdk.p_vmdk_lockfile_data,
- glob_xmount.output.vmdk.vmdk_lockfile_size,
- "vmdk lock",
- glob_xmount.mutex_image_rw);
} else {
// Attempt to read non existant file
LOG_DEBUG("Attempt to read from non existant file \"%s\"\n",p_path)
ret=-ENOENT;
}
#undef READ_MEM_FILE
// TODO: Return size of read data!!!!!
return ret;
}
//! FUSE rename implementation
/*!
* \param p_path File to rename
* \param p_npath New filename
* \return 0 on error, negated error code on error
*/
static int FuseRename(const char *p_path, const char *p_npath) {
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockfile_name)==0)
- {
- LOG_DEBUG("Renaming virtual lock file from \"%s\" to \"%s\"\n",
- glob_xmount.output.vmdk.p_vmdk_lockfile_name,
- p_npath)
- XMOUNT_REALLOC(glob_xmount.output.vmdk.p_vmdk_lockfile_name,char*,
- (strlen(p_npath)+1)*sizeof(char));
- strcpy(glob_xmount.output.vmdk.p_vmdk_lockfile_name,p_npath);
- return 0;
- }
- }
+ // TODO: Implement
return -ENOENT;
}
//! FUSE rmdir implementation
/*!
* \param p_path Directory to delete
* \return 0 on success, negated error code on error
*/
static int FuseRmDir(const char *p_path) {
- // Only VMWare's lock directories can be deleted
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- if(glob_xmount.output.vmdk.p_vmdk_lockdir1!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockdir1)==0)
- {
- LOG_DEBUG("Deleting virtual lock dir \"%s\"\n",
- glob_xmount.output.vmdk.p_vmdk_lockdir1)
- free(glob_xmount.output.vmdk.p_vmdk_lockdir1);
- glob_xmount.output.vmdk.p_vmdk_lockdir1=NULL;
- return 0;
- } else if(glob_xmount.output.vmdk.p_vmdk_lockdir2!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockdir2)==0)
- {
- LOG_DEBUG("Deleting virtual lock dir \"%s\"\n",
- glob_xmount.output.vmdk.p_vmdk_lockdir1)
- free(glob_xmount.output.vmdk.p_vmdk_lockdir2);
- glob_xmount.output.vmdk.p_vmdk_lockdir2=NULL;
- return 0;
- }
- }
+ // TODO: Implement
return -1;
}
//! FUSE unlink implementation
/*!
* \param p_path File to delete
* \return 0 on success, negated error code on error
*/
static int FuseUnlink(const char *p_path) {
- // Only VMWare's lock file can be deleted
- if(glob_xmount.output.VirtImageType==VirtImageType_VMDK ||
- glob_xmount.output.VirtImageType==VirtImageType_VMDKS)
- {
- if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockfile_name)==0)
- {
- LOG_DEBUG("Deleting virtual file \"%s\"\n",
- glob_xmount.output.vmdk.p_vmdk_lockfile_name)
- free(glob_xmount.output.vmdk.p_vmdk_lockfile_name);
- free(glob_xmount.output.vmdk.p_vmdk_lockfile_data);
- glob_xmount.output.vmdk.p_vmdk_lockfile_name=NULL;
- glob_xmount.output.vmdk.p_vmdk_lockfile_data=NULL;
- glob_xmount.output.vmdk.vmdk_lockfile_size=0;
- return 0;
- }
- }
+ // TODO: Implement
return -1;
}
//! FUSE statfs implementation
/*!
* \param p_path Get stats for fs that the specified file resides in
* \param stats Stats
* \return 0 on success, negated error code on error
*/
/*
static int FuseStatFs(const char *p_path, struct statvfs *stats) {
struct statvfs CacheFileFsStats;
int ret;
if(glob_xmount.writable==TRUE) {
// If write support is enabled, return stats of fs upon which cache file
// resides in
if((ret=statvfs(glob_xmount.p_cache_file,&CacheFileFsStats))==0) {
memcpy(stats,&CacheFileFsStats,sizeof(struct statvfs));
return 0;
} else {
LOG_ERROR("Couldn't get stats for fs upon which resides \"%s\"\n",
glob_xmount.p_cache_file)
return ret;
}
} else {
// TODO: Return read only
return 0;
}
}
*/
// FUSE write implementation
/*!
* \param p_buf Buffer containing data to write
* \param size Number of bytes to write
* \param offset Offset to start writing at
* \param p_fi: File info struct
*
* Returns:
* Written bytes on success, negated error code on error
*/
static int FuseWrite(const char *p_path,
const char *p_buf,
size_t size,
off_t offset,
struct fuse_file_info *p_fi)
{
(void)p_fi;
uint64_t len;
if(strcmp(p_path,glob_xmount.output.p_virtual_image_path)==0) {
// Wait for other threads to end reading/writing data
pthread_mutex_lock(&(glob_xmount.mutex_image_rw));
- // Get virtual image file size
- if(!GetVirtImageSize(&len)) {
+ // Get output image file size
+ if(!GetOutputImageSize(&len)) {
LOG_ERROR("Couldn't get virtual image size!\n")
pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
return 0;
}
if(offset<len) {
if(offset+size>len) size=len-offset;
- if(SetVirtImageData(p_buf,offset,size)!=size) {
+ if(WriteOutputImageData(p_buf,offset,size)!=size) {
LOG_ERROR("Couldn't write data to virtual image file!\n")
pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
return 0;
}
} else {
LOG_DEBUG("Attempt to write past EOF of virtual image file\n")
pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
return 0;
}
// Allow other threads to read/write data again
pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
- } else if(strcmp(p_path,glob_xmount.output.vmdk.p_virtual_vmdk_path)==0) {
- pthread_mutex_lock(&(glob_xmount.mutex_image_rw));
- len=glob_xmount.output.vmdk.vmdk_file_size;
- if((offset+size)>len) {
- // Enlarge or create buffer if needed
- if(len==0) {
- len=offset+size;
- XMOUNT_MALLOC(glob_xmount.output.vmdk.p_vmdk_file,
- char*,
- len*sizeof(char));
- } else {
- len=offset+size;
- XMOUNT_REALLOC(glob_xmount.output.vmdk.p_vmdk_file,
- char*,
- len*sizeof(char));
- }
- glob_xmount.output.vmdk.vmdk_file_size=offset+size;
- }
- // Copy data to buffer
- memcpy(glob_xmount.output.vmdk.p_vmdk_file+offset,p_buf,size);
- pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
- } else if(glob_xmount.output.vmdk.p_vmdk_lockfile_name!=NULL &&
- strcmp(p_path,glob_xmount.output.vmdk.p_vmdk_lockfile_name)==0)
- {
- pthread_mutex_lock(&(glob_xmount.mutex_image_rw));
- if((offset+size)>glob_xmount.output.vmdk.vmdk_lockfile_size) {
- // Enlarge or create buffer if needed
- if(glob_xmount.output.vmdk.vmdk_lockfile_size==0) {
- glob_xmount.output.vmdk.vmdk_lockfile_size=offset+size;
- XMOUNT_MALLOC(glob_xmount.output.vmdk.p_vmdk_lockfile_data,char*,
- glob_xmount.output.vmdk.vmdk_lockfile_size*sizeof(char))
- } else {
- glob_xmount.output.vmdk.vmdk_lockfile_size=offset+size;
- XMOUNT_REALLOC(glob_xmount.output.vmdk.p_vmdk_lockfile_data,char*,
- glob_xmount.output.vmdk.vmdk_lockfile_size*sizeof(char))
- }
- }
- // Copy data to buffer
- memcpy(glob_xmount.output.vmdk.p_vmdk_lockfile_data+offset,p_buf,size);
- pthread_mutex_unlock(&(glob_xmount.mutex_image_rw));
} else if(strcmp(p_path,glob_xmount.output.p_info_path)==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",p_path)
return -ENOENT;
}
return size;
}
/*******************************************************************************
* Main
******************************************************************************/
int main(int argc, char *argv[]) {
struct stat file_stat;
int ret;
int fuse_ret;
char *p_err_msg;
// Set implemented FUSE functions
struct fuse_operations xmount_operations = {
//.access=FuseAccess,
.getattr=FuseGetAttr,
.mkdir=FuseMkDir,
.mknod=FuseMkNod,
.open=FuseOpen,
.readdir=FuseReadDir,
.read=FuseRead,
.rename=FuseRename,
.rmdir=FuseRmDir,
//.statfs=FuseStatFs,
.unlink=FuseUnlink,
.write=FuseWrite
};
// Disable std output / input buffering
setbuf(stdout,NULL);
setbuf(stderr,NULL);
// Init glob_xmount
InitResources();
// Load input and morphing libs
if(!LoadLibs()) {
LOG_ERROR("Unable to load any libraries!\n")
return 1;
}
// Check FUSE settings
CheckFuseSettings();
// Parse command line options
if(ParseCmdLine(argc,argv)!=TRUE) {
PrintUsage(argv[0]);
FreeResources();
return 1;
}
// Check command line options
if(glob_xmount.input.images_count==0) {
LOG_ERROR("No --in command line option specified!\n")
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(glob_xmount.fuse_argc<2) {
LOG_ERROR("Couldn't parse command line options!\n")
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(glob_xmount.morphing.p_morph_type==NULL) {
XMOUNT_STRSET(glob_xmount.morphing.p_morph_type,"combine");
}
// Check if mountpoint is a valid dir
if(stat(glob_xmount.p_mountpoint,&file_stat)!=0) {
LOG_ERROR("Unable to stat mount point '%s'!\n",glob_xmount.p_mountpoint);
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(!S_ISDIR(file_stat.st_mode)) {
LOG_ERROR("Mount point '%s' is not a directory!\n",
glob_xmount.p_mountpoint);
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(glob_xmount.debug==TRUE) {
LOG_DEBUG("Options passed to FUSE: ")
for(int i=0;i<glob_xmount.fuse_argc;i++) {
printf("%s ",glob_xmount.pp_fuse_argv[i]);
}
printf("\n");
}
// Init mutexes
pthread_mutex_init(&(glob_xmount.mutex_image_rw),NULL);
pthread_mutex_init(&(glob_xmount.mutex_info_read),NULL);
// Load input images
for(uint64_t i=0;i<glob_xmount.input.images_count;i++) {
if(glob_xmount.debug==TRUE) {
if(glob_xmount.input.pp_images[i]->files_count==1) {
LOG_DEBUG("Loading image file \"%s\"...\n",
glob_xmount.input.pp_images[i]->pp_files[0])
} else {
LOG_DEBUG("Loading image files \"%s .. %s\"...\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->
pp_files[glob_xmount.input.pp_images[i]->files_count-1])
}
}
// Find input lib
if(!FindInputLib(glob_xmount.input.pp_images[i])) {
LOG_ERROR("Unknown input image type '%s' for input image '%s'!\n",
glob_xmount.input.pp_images[i]->p_type,
glob_xmount.input.pp_images[i]->pp_files[0])
PrintUsage(argv[0]);
FreeResources();
return 1;
}
// Init input image handle
ret=glob_xmount.input.pp_images[i]->p_functions->
CreateHandle(&(glob_xmount.input.pp_images[i]->p_handle),
glob_xmount.input.pp_images[i]->p_type,
glob_xmount.debug);
if(ret!=0) {
LOG_ERROR("Unable to init input handle for input image '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
FreeResources();
return 1;
}
// Parse input lib specific options
if(glob_xmount.input.pp_lib_params!=NULL) {
ret=glob_xmount.input.pp_images[i]->p_functions->
OptionsParse(glob_xmount.input.pp_images[i]->p_handle,
glob_xmount.input.lib_params_count,
glob_xmount.input.pp_lib_params,
(const char**)&p_err_msg);
if(ret!=0) {
if(p_err_msg!=NULL) {
LOG_ERROR("Unable to parse input library specific options for image "
"'%s': %s: %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret),
p_err_msg);
glob_xmount.input.pp_images[i]->p_functions->FreeBuffer(p_err_msg);
FreeResources();
return 1;
} else {
LOG_ERROR("Unable to parse input library specific options for image "
"'%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
FreeResources();
return 1;
}
}
}
// Open input image
ret=
glob_xmount.input.pp_images[i]->
p_functions->
Open(glob_xmount.input.pp_images[i]->p_handle,
(const char**)(glob_xmount.input.pp_images[i]->pp_files),
glob_xmount.input.pp_images[i]->files_count);
if(ret!=0) {
LOG_ERROR("Unable to open input image file '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
FreeResources();
return 1;
}
// Determine input image size
ret=glob_xmount.input.pp_images[i]->
p_functions->
Size(glob_xmount.input.pp_images[i]->p_handle,
&(glob_xmount.input.pp_images[i]->size));
if(ret!=0) {
LOG_ERROR("Unable to determine size of input image '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->
p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// If an offset was specified, check it against offset and change size
if(glob_xmount.input.image_offset!=0) {
if(glob_xmount.input.image_offset>glob_xmount.input.pp_images[i]->size) {
LOG_ERROR("The specified offset is larger than the size of the input "
"image '%s'! (%" PRIu64 " > %" PRIu64 ")\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.image_offset,
glob_xmount.input.pp_images[i]->size);
FreeResources();
return 1;
}
glob_xmount.input.pp_images[i]->size-=glob_xmount.input.image_offset;
}
// If a size limit was specified, check it and change size
if(glob_xmount.input.image_size_limit!=0) {
if(glob_xmount.input.pp_images[i]->size<
glob_xmount.input.image_size_limit)
{
LOG_ERROR("The specified size limit is larger than the size of the "
"input image '%s'! (%" PRIu64 " > %" PRIu64 ")\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.image_size_limit,
glob_xmount.input.pp_images[i]->size);
FreeResources();
return 1;
}
glob_xmount.input.pp_images[i]->size=glob_xmount.input.image_size_limit;
}
LOG_DEBUG("Input image loaded successfully\n")
}
// Find morphing lib
if(FindMorphingLib()!=TRUE) {
LOG_ERROR("Unable to find a library supporting the morphing type '%s'!\n",
glob_xmount.morphing.p_morph_type);
FreeResources();
return 1;
}
// Init morphing
ret=glob_xmount.morphing.p_functions->
CreateHandle(&glob_xmount.morphing.p_handle,
glob_xmount.morphing.p_morph_type,
glob_xmount.debug);
if(ret!=0) {
LOG_ERROR("Unable to create morphing handle: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// Parse morphing lib specific options
if(glob_xmount.morphing.pp_lib_params!=NULL) {
p_err_msg=NULL;
ret=glob_xmount.morphing.p_functions->
OptionsParse(glob_xmount.morphing.p_handle,
glob_xmount.morphing.lib_params_count,
glob_xmount.morphing.pp_lib_params,
(const char**)&p_err_msg);
if(ret!=0) {
if(p_err_msg!=NULL) {
LOG_ERROR("Unable to parse morphing library specific options: %s: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret),
p_err_msg);
glob_xmount.morphing.p_functions->FreeBuffer(p_err_msg);
FreeResources();
return 1;
} else {
LOG_ERROR("Unable to parse morphing library specific options: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
}
}
// Morph image
ret=glob_xmount.morphing.p_functions->
Morph(glob_xmount.morphing.p_handle,
&(glob_xmount.morphing.input_image_functions));
if(ret!=0) {
LOG_ERROR("Unable to start morphing: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// Init random generator
srand(time(NULL));
// Calculate partial MD5 hash of input image file
if(CalculateInputImageHash(&(glob_xmount.input.image_hash_lo),
&(glob_xmount.input.image_hash_hi))==FALSE)
{
LOG_ERROR("Couldn't calculate partial hash of morphed image!\n")
return 1;
}
if(glob_xmount.debug==TRUE) {
LOG_DEBUG("Partial MD5 hash of morphed image: ")
for(int i=0;i<8;i++)
printf("%02hhx",*(((char*)(&(glob_xmount.input.image_hash_lo)))+i));
for(int i=0;i<8;i++)
printf("%02hhx",*(((char*)(&(glob_xmount.input.image_hash_hi)))+i));
printf("\n");
}
- if(!ExtractVirtFileNames(glob_xmount.input.pp_images[0]->pp_files[0])) {
+ if(!ExtractOutputFileNames(glob_xmount.input.pp_images[0]->pp_files[0])) {
LOG_ERROR("Couldn't extract virtual file names!\n");
FreeResources();
return 1;
}
LOG_DEBUG("Virtual file names extracted successfully\n")
- // Gather infos for info file
- if(!InitVirtImageInfoFile()) {
- LOG_ERROR("Couldn't gather infos for virtual image info file!\n")
+ // Find output lib
+ if(FindOutputLib()!=TRUE) {
+ LOG_ERROR("Unable to find a library supporting the output format '%s'!\n",
+ glob_xmount.output.p_output_format);
FreeResources();
return 1;
}
- LOG_DEBUG("Virtual image info file build successfully\n")
- // Do some virtual image type specific initialisations
- switch(glob_xmount.output.VirtImageType) {
- case VirtImageType_DD:
- case VirtImageType_DMG:
- break;
- case VirtImageType_VDI:
- // When mounting as VDI, we need to construct a vdi header
- if(!InitVirtVdiHeader()) {
- LOG_ERROR("Couldn't initialize virtual VDI file header!\n")
- FreeResources();
- return 1;
- }
- LOG_DEBUG("Virtual VDI file header build successfully\n")
- break;
- case VirtImageType_VHD:
- // When mounting as VHD, we need to construct a vhd footer
- if(!InitVirtVhdHeader()) {
- LOG_ERROR("Couldn't initialize virtual VHD file footer!\n")
+ // Init output
+ ret=glob_xmount.output.p_functions->
+ CreateHandle(&glob_xmount.output.p_handle,
+ glob_xmount.output.p_output_format,
+ glob_xmount.debug);
+ if(ret!=0) {
+ LOG_ERROR("Unable to create output handle: %s!\n",
+ glob_xmount.output.p_functions->GetErrorMessage(ret));
+ FreeResources();
+ return 1;
+ }
+
+ // Parse output lib specific options
+ if(glob_xmount.output.pp_lib_params!=NULL) {
+ p_err_msg=NULL;
+ ret=glob_xmount.output.p_functions->
+ OptionsParse(glob_xmount.output.p_handle,
+ glob_xmount.output.lib_params_count,
+ glob_xmount.output.pp_lib_params,
+ (const char**)&p_err_msg);
+ if(ret!=0) {
+ if(p_err_msg!=NULL) {
+ LOG_ERROR("Unable to parse output library specific options: %s: %s!\n",
+ glob_xmount.output.p_functions->GetErrorMessage(ret),
+ p_err_msg);
+ glob_xmount.output.p_functions->FreeBuffer(p_err_msg);
FreeResources();
return 1;
- }
- LOG_DEBUG("Virtual VHD file footer build successfully\n")
- break;
- case VirtImageType_VMDK:
- case VirtImageType_VMDKS:
- // When mounting as VMDK, we need to construct the VMDK descriptor file
- if(!InitVirtualVmdkFile()) {
- LOG_ERROR("Couldn't initialize virtual VMDK file!\n")
+ } else {
+ LOG_ERROR("Unable to parse output library specific options: %s!\n",
+ glob_xmount.output.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
- break;
+ }
+ }
+
+ // Morph image
+ ret=glob_xmount.morphing.p_functions->
+ Morph(glob_xmount.morphing.p_handle,
+ &(glob_xmount.morphing.input_image_functions));
+ if(ret!=0) {
+ LOG_ERROR("Unable to start morphing: %s!\n",
+ glob_xmount.morphing.p_functions->GetErrorMessage(ret));
+ FreeResources();
+ return 1;
}
+ // Gather infos for info file
+ if(!InitInfoFile()) {
+ LOG_ERROR("Couldn't gather infos for virtual image info file!\n")
+ FreeResources();
+ return 1;
+ }
+ LOG_DEBUG("Virtual image info file build successfully\n")
+
if(glob_xmount.output.writable) {
// Init cache file and cache file block index
if(!InitCacheFile()) {
LOG_ERROR("Couldn't initialize cache file!\n")
FreeResources();
return 1;
}
LOG_DEBUG("Cache file initialized successfully\n")
}
// Call fuse_main to do the fuse magic
fuse_ret=fuse_main(glob_xmount.fuse_argc,
glob_xmount.pp_fuse_argv,
&xmount_operations,
NULL);
// Destroy mutexes
pthread_mutex_destroy(&(glob_xmount.mutex_image_rw));
pthread_mutex_destroy(&(glob_xmount.mutex_info_read));
// Free allocated memory
FreeResources();
return fuse_ret;
}
-
-/*
- ----- Change log -----
- 20090131: v0.1.0 released
- * Some minor things have still to be done.
- * Mounting ewf as dd: Seems to work. Diff didn't complain about
- changes between original dd and emulated dd.
- * Mounting ewf as vdi: Seems to work too. VBox accepts the emulated
- vdi as valid vdi file and I was able to mount the containing fs
- under Debian. INFO: Debian freezed when not using mount -r !!
- 20090203: v0.1.1 released
- * Multiple code improvements. For ex. cleaner vdi header allocation.
- * Fixed severe bug in image block calculation. Didn't check for odd
- input in conversion from bytes to megabytes.
- * Added more debug output
- 20090210: v0.1.2 released
- * Fixed compilation problem (Typo in image_init_info() function).
- * Fixed some problems with the debian scripts to be able to build
- packages.
- * Added random generator initialisation (Makes it possible to use
- more than one image in VBox at a time).
- 20090215: * Added function init_cache_blocks which creates / loads a cache
- file used to implement virtual write capability.
- 20090217: * Implemented the fuse write function. Did already some basic tests
- with dd and it seems to work. But there are certainly still some
- bugs left as there are also still some TODO's left.
- 20090226: * Changed program name from mountewf to xmount.
- * Began with massive code cleanups to ease full implementation of
- virtual write support and to be able to support multiple input
- image formats (DD, EWF and AFF are planned for now).
- * Added defines for supported input formats so it should be possible
- to compile xmount without supporting all input formats. (DD
- input images are always supported as these do not require any
- additional libs). Input formats should later be en/disabled
- by the configure script in function to which libs it detects.
- * GetOrigImageSize function added to get the size of the original
- image whatever type it is in.
- * GetOrigImageData function added to retrieve data from original
- image file whatever type it is in.
- * GetVirtImageSize function added to get the size of the virtual
- image file.
- * Cleaned function mountewf_getattr and renamed it to
- GetVirtFileAttr
- * Cleaned function mountewf_readdir and renamed it to GetVirtFiles
- * Cleaned function mountewf_open and renamed it to OpenVirtFile
- 20090227: * Cleaned function init_info_file and renamed it to
- InitVirtImageInfoFile
- 20090228: * Cleaned function init_cache_blocks and renamed it to
- InitCacheFile
- * Added LogMessage function to ease error and debug logging (See
- also LOG_ERROR and LOG_DEBUG macros in xmount.h)
- * Cleaned function init_vdi_header and renamed it to
- InitVirtVdiHeader
- * Added PrintUsage function to print out xmount usage informations
- * Cleaned function parse_cmdline and renamed it to ParseCmdLine
- * Cleaned function main
- * Added ExtractVirtFileNames function to extract virtual file names
- from input image name
- * Added function GetVirtImageData to retrieve data from the virtual
- image file. This includes reading data from cache file if virtual
- write support is enabled.
- * Added function ReadVirtFile to replace mountewf_read
- 20090229: * Fixed a typo in virtual file name creation
- * Added function SetVirtImageData to write data to virtual image
- file. This includes writing data to cache file and caching entire
- new blocks
- * Added function WriteVirtFile to replace mountewf_write
- 20090305: * Solved a problem that made it impossible to access offsets >32bit
- 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 <iname>.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. glob_vmdk_lockfile_size
- wasn't reset to 0 when the file was deleted.
- * Fixed a bug in VMDK descriptor file access. Had to add
- glob_vmdk_file_size 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: * Added libaewf (thx to Guy Voncken).
- 20140726: * Added support for dynamically loading of input libs. This should
- ease adding support for new input image formats in the future.
- * Moved input image functions to their corresponding dynamically
- loadable libs.
- * Prepended "glob_" to all global vars for better identification.
- 20140731: * Added --offset option as requested by HPM.
- * Began massive code cleanup.
- 20140803: * Added correct return code handling when calling input lib
- functions including getting error messages using GetErrorMessage.
- * Added input lib specific option parsing.
- * Re-implemented InitVirtImageInfoFile() using input lib's
- GetInfofileContent() function.
- * Further code cleanups.
- 20140807: * Further code cleanups.
- * Renamed GetVirtFileAttr() to FuseGetAttr()
- * Renamed CreateVirtDir() to FuseMkDir()
- * Renamed CreateVirtDir() to FuseMkNod()
- * Renamed OpenVirtFile() to FuseOpen()
- * Renamed GetVirtFiles() to FuseReadDir()
- * Renamed ReadVirtFile() to FuseRead()
- * Renamed RenameVirtFile() to FuseRename()
- * Renamed DeleteVirtDir() to FuseRmDir()
- * Renamed DeleteVirtFile() to FuseUnlink()
- * Renamed WriteVirtFile() to FuseWrite()
- * Fixed bug in CalculateInputImageHash() where always HASH_AMOUNT
- bytes were hased even if input image is smaller.
- * Fixed a newly introduced bug in FuseRead() and GetVirtImageData()
- returning -EIO when trying to read behind EOF. The correct return
- value is 0.
- 20140811: * Renamed CheckFuseAllowOther() to CheckFuseSettings() and added a
- check to see if user is part of the fuse group.
- 20140814: * Replaced cuserid() with getpwuid(geteuid()) in CheckFuseSettings()
- as it is deprecated on Linux and not available on OSx.
- * Only build fuse group checks from CheckFuseSettings() on Linux.
- 20140820: * Added libxmount_morphing handling.
- * Renamed LoadInputLibs() to LoadLibs() and added code to find and
- load morphing libs.
- * Added FindMorphingLib() function.
- 20140821: * Changed command line syntax to support specification of multiple
- input images of different types.
- * Added code in main() to initialize and open multiple input images.
- * Added GetMorphedImageSize() and GetMorphedImageData().
- 20140822: * Removed GetInputImageSize() as it isn't needed anymore.
- * Quick test showed morphing using libxmount_morphing_combine seems
- to work.
- 20140825: * Added InitResources() and FreeResources() functions.
- 20140926: v0.7.0 released
- 20140930: v0.7.1 released
- * Fixed bug with --sizelimit command line option.
- 20141001: v0.7.2 released
- * Fixed bug in FreeResources(). Do not free vdi.p_vdi_block_map as
- it is part of vdi.p_vdi_header.
- 20141113: v0.7.3 released
- * Fixed minor bug in ParseCmdLine() which was not checking upper
- argc bounds correctly.
- 20150820: v0.7.4 released
- 20150901: * Improved the way fsname is built
-*/
-
diff --git a/src/xmount.h b/src/xmount.h
index 4cec6f9..95695af 100755
--- a/src/xmount.h
+++ b/src/xmount.h
@@ -1,537 +1,283 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* 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 <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#include "../libxmount_input/libxmount_input.h"
#include "../libxmount_morphing/libxmount_morphing.h"
#include "../libxmount_output/libxmount_output.h"
#undef FALSE
#undef TRUE
#define FALSE 0
#define TRUE 1
/*
* Constants
*/
#define IMAGE_INFO_INPUT_HEADER \
"------> The following values are supplied by the used input library(ies) " \
"<------\n"
#define IMAGE_INFO_MORPHING_HEADER \
"\n------> The following values are supplied by the used morphing library " \
"<------\n\n"
-/*******************************************************************************
- * Structures of output images
- ******************************************************************************/
-
-#define VDI_FILE_COMMENT "<<< This is a virtual VDI image >>>"
-#define VDI_HEADER_COMMENT "This VDI was emulated using xmount v" XMOUNT_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
-//! VDI Binary File Header structure
-typedef struct s_VdiFileHeader {
-// ----- 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 - Cylinders
- uint32_t cCylinders;
- //! Legacy image geometry - Heads
- uint32_t cHeads;
- //! Legacy image geometry - Sectors per track
- uint32_t cSectors;
- //! Legacy image geometry - 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 (lower 64 bit)
- uint64_t uuidCreate_l;
- //! UUID of image (higher 64 bit)
- uint64_t uuidCreate_h;
- //! UUID of image's last modification (lower 64 bit)
- uint64_t uuidModify_l;
- //! UUID of image's last modification (higher 64 bit)
- uint64_t uuidModify_h;
- //! Only for secondary images - UUID of previous image (lower 64 bit)
- uint64_t uuidLinkage_l;
- //! Only for secondary images - UUID of previous image (higher 64 bit)
- uint64_t uuidLinkage_h;
- //! Only for secondary images - UUID of prev image's last mod (lower 64 bit)
- uint64_t uuidParentModify_l;
- //! Only for secondary images - UUID of prev image's last mod (higher 64 bit)
- uint64_t uuidParentModify_h;
- //! Padding to get 512 byte alignment
- char padding[56];
-} __attribute__ ((packed)) ts_VdiFileHeader, *pts_VdiFileHeader;
-
-// /** 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 s_VhdFileHeader {
- 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)) ts_VhdFileHeader, *pts_VhdFileHeader;
-
/*******************************************************************************
* Xmount specific structures
******************************************************************************/
#ifdef __LP64__
#define CACHE_BLOCK_FREE 0xFFFFFFFFFFFFFFFF
#else
#define CACHE_BLOCK_FREE 0xFFFFFFFFFFFFFFFFLL
#endif
//! Cache file block index array element
typedef uint64_t t_CacheFileBlockIndex;
// TODO: Remove
typedef struct s_CacheFileBlockIndex {
//! 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)) ts_CacheFileBlockIndex, *pts_CacheFileBlockIndex;
#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)
//! Cache file header structure
typedef struct s_CacheFileHeader {
//! 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 to get 512 byte alignment and ease further additions
char HeaderPadding[432];
} __attribute__ ((packed)) ts_CacheFileHeader, *pts_CacheFileHeader;
//! Cache file header structure - Old v1 header
typedef struct s_CacheFileHeader_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
} ts_CacheFileHeader_v1, *pts_CacheFileHeader_v1;
-//! Virtual image types
-typedef enum e_VirtImageType {
- //! Virtual image is a DD file
- VirtImageType_DD,
- //! Virtual image is a DMG file
- VirtImageType_DMG,
- //! Virtual image is a VDI file
- VirtImageType_VDI,
- //! Virtual image is a VMDK file (IDE bus)
- VirtImageType_VMDK,
- //! Virtual image is a VMDK file (SCSI bus)
- VirtImageType_VMDKS,
- //! Virtual image is a VHD file
- VirtImageType_VHD
-} te_VirtImageType;
-
//! Structure containing infos about input libs
typedef struct s_InputLib {
//! Filename of lib (without path)
char *p_name;
//! Handle to the loaded lib
void *p_lib;
//! Array of supported input types
char *p_supported_input_types;
//! Struct containing lib functions
ts_LibXmountInputFunctions lib_functions;
} ts_InputLib, *pts_InputLib;
//! Structure containing infos about input images
typedef struct s_InputImage {
//! Image type
char *p_type;
//! Image source file count
uint64_t files_count;
//! Image source files
char **pp_files;
//! Input lib functions for this image
pts_LibXmountInputFunctions p_functions;
//! Image handle
void *p_handle;
//! Image size
uint64_t size;
} ts_InputImage, *pts_InputImage;
typedef struct s_InputData {
//! Loaded input lib count
uint32_t libs_count;
//! Array containing infos about loaded input libs
pts_InputLib *pp_libs;
//! Amount of input lib params (--inopts)
uint32_t lib_params_count;
//! Input lib params (--inopts)
pts_LibXmountOptions *pp_lib_params;
//! Input image count
uint64_t images_count;
//! Input images
pts_InputImage *pp_images;
//! Input image offset (--offset)
uint64_t image_offset;
//! Input image size limit (--sizelimit)
uint64_t image_size_limit;
//! MD5 hash of partial input image (lower 64 bit) (after morph)
uint64_t image_hash_lo;
//! MD5 hash of partial input image (higher 64 bit) (after morph)
uint64_t image_hash_hi;
} ts_InputData;
//! Structure containing infos about morphing libs
typedef struct s_MorphingLib {
//! Filename of lib (without path)
char *p_name;
//! Handle to the loaded lib
void *p_lib;
//! Array of supported morphing types
char *p_supported_morphing_types;
//! Struct containing lib functions
ts_LibXmountMorphingFunctions lib_functions;
} ts_MorphingLib, *pts_MorphingLib;
//! Structures and vars needed for morph support
typedef struct s_MorphingData {
//! Loaded morphing lib count
uint32_t libs_count;
//! Array containing infos about loaded morphing libs
pts_MorphingLib *pp_libs;
//! Specified morphing type (--morph)
char *p_morph_type;
//! Amount of specified morphing lib params (--morphopts)
uint32_t lib_params_count;
//! Specified morphing lib params (--morphopts)
pts_LibXmountOptions *pp_lib_params;
//! Handle to initialized morphing lib
void *p_handle;
//! Morphing functions of initialized lib
pts_LibXmountMorphingFunctions p_functions;
//! Input image functions passed to morphing lib
ts_LibXmountMorphingInputFunctions input_image_functions;
} ts_MorphingData;
//! Structures and vars needed for write access
#define XMOUNT_CACHE_FOLDER "/.xmount"
#define XMOUNT_CACHE_BLOCK_FILE XMOUNT_CACHE_FOLDER "/blocks.data"
#define XMOUNT_CACHE_BLOCK_INDEX_FILE XMOUNT_CACHE_FOLDER "/blocks.index"
typedef struct s_CacheData {
//! Cache file to save changes to
char *p_cache_file;
//! Handle to cache file
hGidaFs h_cache_file;
//! Handle to block cache
hGidaFsFile h_block_cache;
//! Handle to block cache index
hGidaFsFile h_block_cache_index;
-
// TODO: Move to s_XmountData
//! Overwrite existing cache
uint8_t overwrite_cache;
-
- // TODO: Remove
- FILE *h_old_cache_file;
- //! Cache header
- pts_CacheFileHeader p_cache_header;
- //! Cache block index
- pts_CacheFileBlockIndex p_cache_blkidx;
} ts_CacheData;
-//! Structures and vars needed for VDI support
-typedef struct s_OutputImageVdiData {
- //! VDI header size
- uint32_t vdi_header_size;
- //! VDI header
- pts_VdiFileHeader p_vdi_header;
- //! VDI blockmap size
- uint32_t vdi_block_map_size;
- //! VDI block map
- char *p_vdi_block_map;
-} ts_OutputImageVdiData;
-
-//! Structures and vars needed for VHD support
-typedef struct s_OutputImageVhdData {
- //! VHD header
- ts_VhdFileHeader *p_vhd_header;
-} ts_OutputImageVhdData;
-
-//! Structures and vars needed for VMDK support
-typedef struct s_OutputImageVmdkData {
- //! Path of virtual VMDK file
- char *p_virtual_vmdk_path;
- //! VMDK content
- char *p_vmdk_file;
- //! VMDK content size
- int vmdk_file_size;
- //! Path of 1st lockdir
- char *p_vmdk_lockdir1;
- //! Path of 2nd lockdir
- char *p_vmdk_lockdir2;
- //! Lockfile content
- char *p_vmdk_lockfile_data;
- //! Lockfile content size
- int vmdk_lockfile_size;
- //! Path of lockfile
- char *p_vmdk_lockfile_name;
-} ts_OutputImageVmdkData;
-
//! Structure containing infos about output libs
typedef struct s_OutputLib {
//! Filename of lib (without path)
char *p_name;
//! Handle to the loaded lib
void *p_lib;
//! Array of supported output formats
char *p_supported_output_formats;
//! Struct containing lib functions
ts_LibXmountOutput_Functions lib_functions;
} ts_OutputLib, *pts_OutputLib;
//! Structure containing infos about output image
typedef struct s_OutputData {
//! Loaded output lib count
uint32_t libs_count;
//! Array containing infos about loaded output libs
pts_OutputLib *pp_libs;
//! Specified output format (--out)
char *p_output_format;
//! Amount of specified output lib params
uint32_t lib_params_count;
//! Specified output lib params (--outopts)
pts_LibXmountOptions *pp_lib_params;
//! Handle to initialized output lib
void *p_handle;
//! Transformation functions of initialized lib
pts_LibXmountOutput_Functions p_functions;
//! Input image functions passed to output lib
ts_LibXmountOutput_InputFunctions input_functions;
-
-
-
-
- //! Virtual image type
- te_VirtImageType VirtImageType;
//! Size
uint64_t image_size;
//! Writable? (Set to 1 if --cache was specified)
uint8_t writable;
//! Path of virtual image file
char *p_virtual_image_path;
//! Path of virtual image info file
char *p_info_path;
//! Pointer to virtual info file
char *p_info_file;
- //! VDI related data
- ts_OutputImageVdiData vdi;
- //! VHD related data
- ts_OutputImageVhdData vhd;
- //! VMDK related data
- ts_OutputImageVmdkData vmdk;
} ts_OutputData;
//! Structure containing global xmount runtime infos
typedef struct s_XmountData {
//! Input image related data
ts_InputData input;
//! Morphing related data
ts_MorphingData morphing;
//! Cache file related data
ts_CacheData cache;
//! Output image related data
ts_OutputData output;
//! Enable debug output
uint8_t debug;
//! Set if we are allowed to set fuse's allow_other option
uint8_t may_set_fuse_allow_other;
//! Argv for FUSE
int fuse_argc;
//! Argv for FUSE
char **pp_fuse_argv;
//! Mount point
char *p_mountpoint;
//! Mutex to control concurrent read & write access on output image
pthread_mutex_t mutex_image_rw;
//! Mutex to control concurrent read access on info file
pthread_mutex_t mutex_info_read;
} ts_XmountData;
-
-/*
- ----- Change log -----
- 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 ts_VdiFileHeader.
- 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
- ts_CacheFileHeader_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 ts_VhdFileHeader structure.
- 20120511: * Added endianness conversation macros
- 20140809: * Moved endianness macros to separate file
- 20140810: * Moved convenience macros to separate file
- 20140726: * Added ts_InputLib
- 20140821: * Added ts_InputImage and ts_InputData
- * Moved data from various places to the above structs.
- 20140825: * Added ts_MorphingLib, ts_CacheData, ts_OutputImageVdiData,
- ts_OutputImageVhdData, ts_OutputImageVmdkData and ts_OutputData.
- * Moved data from various places to the above structs.
-*/
-

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