diff --git a/trunk/libxmount_input/libxmount_input_dd/libxmount_input_dd.c b/trunk/libxmount_input/libxmount_input_dd/libxmount_input_dd.c
index 189217c..afc136f 100644
--- a/trunk/libxmount_input/libxmount_input_dd/libxmount_input_dd.c
+++ b/trunk/libxmount_input/libxmount_input_dd/libxmount_input_dd.c
@@ -1,390 +1,393 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2013 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* This module has been written by Guy Voncken. It contains the functions for *
* accessing dd images. Split dd is supported as well. *
* *
* 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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../libxmount_input.h"
#include "libxmount_input_dd.h"
/*******************************************************************************
* LibXmount_Input API implementation
******************************************************************************/
/*
* LibXmount_Input_GetApiVersion
*/
uint8_t LibXmount_Input_GetApiVersion() {
return LIBXMOUNT_INPUT_API_VERSION;
}
/*
* LibXmount_Input_GetSupportedFormats
*/
const char* LibXmount_Input_GetSupportedFormats() {
return "dd\0\0";
}
/*
* LibXmount_Input_GetFunctions
*/
void LibXmount_Input_GetFunctions(ts_LibXmountInputFunctions *p_functions) {
p_functions->CreateHandle=&DdCreateHandle;
p_functions->DestroyHandle=&DdDestroyHandle;
p_functions->Open=&DdOpen;
p_functions->Close=&DdClose;
p_functions->Size=&DdSize;
p_functions->Read=&DdRead;
p_functions->OptionsHelp=&DdOptionsHelp;
p_functions->OptionsParse=&DdOptionsParse;
p_functions->GetInfofileContent=&DdGetInfofileContent;
p_functions->GetErrorMessage=&DdGetErrorMessage;
p_functions->FreeBuffer=&DdFreeBuffer;
}
/*******************************************************************************
* Private
******************************************************************************/
// ---------------------------
// Internal static functions
// ---------------------------
static inline uint64_t DdGetCurrentSeekPos (t_pPiece pPiece)
{
return ftello (pPiece->pFile);
}
static inline int DdSetCurrentSeekPos (t_pPiece pPiece,
uint64_t Val,
int Whence)
{
if (fseeko (pPiece->pFile, Val, Whence) != 0) return DD_CANNOT_SEEK;
return DD_OK;
}
static int DdRead0 (t_pdd pdd, uint64_t Seek, char *pBuffer, uint32_t *pCount)
{
t_pPiece pPiece;
uint64_t i;
// Find correct piece to read from
// -------------------------------
for (i=0; i<pdd->Pieces; i++)
{
pPiece = &pdd->pPieceArr[i];
if (Seek < pPiece->FileSize) break;
Seek -= pPiece->FileSize;
}
if (i >= pdd->Pieces) return DD_READ_BEYOND_END_OF_IMAGE;
// Read from this piece
// --------------------
CHK (DdSetCurrentSeekPos (pPiece, Seek, SEEK_SET))
*pCount = GETMIN (*pCount, pPiece->FileSize - Seek);
if (fread (pBuffer, *pCount, 1, pPiece->pFile) != 1)
{
return DD_CANNOT_READ_DATA;
}
return DD_OK;
}
// ---------------
// API functions
// ---------------
/*
* DdCreateHandle
*/
static int DdCreateHandle(void **pp_handle, char *p_format) {
(void)p_format;
t_pdd p_dd=NULL;
p_dd=(t_pdd)malloc(sizeof(t_dd));
if(p_dd==NULL) return DD_MEMALLOC_FAILED;
memset(p_dd,0,sizeof(t_dd));
*pp_handle=p_dd;
return DD_OK;
}
/*
* DdDestroyHandle
*/
static int DdDestroyHandle(void **pp_handle) {
free(*pp_handle);
*pp_handle=NULL;
return DD_OK;
}
/*
* DdOpen
*/
static int DdOpen(void **pp_handle,
const char **pp_filename_arr,
uint64_t filename_arr_len)
{
t_pdd pdd=(t_pdd)*pp_handle;
t_pPiece pPiece;
pdd->Pieces = filename_arr_len;
pdd->pPieceArr = (t_pPiece) malloc (pdd->Pieces * sizeof(t_Piece));
if (pdd->pPieceArr == NULL) return DD_MEMALLOC_FAILED;
// Need to set everything to 0 in case an error occurs later and DdClose is
// called
memset(pdd->pPieceArr,0,pdd->Pieces * sizeof(t_Piece));
pdd->TotalSize = 0;
for (uint64_t i=0; i < pdd->Pieces; i++)
{
+
+ printf("Opening %s\n",pp_filename_arr[i]);
+
pPiece = &pdd->pPieceArr[i];
pPiece->pFilename = strdup (pp_filename_arr[i]);
if (pPiece->pFilename == NULL)
{
(void)DdClose(pp_handle);
return DD_MEMALLOC_FAILED;
}
pPiece->pFile = fopen (pPiece->pFilename, "r");
if (pPiece->pFile == NULL)
{
(void)DdClose(pp_handle);
return DD_FILE_OPEN_FAILED;
}
CHK(DdSetCurrentSeekPos(pPiece, 0, SEEK_END))
pPiece->FileSize = DdGetCurrentSeekPos (pPiece);
pdd->TotalSize += pPiece->FileSize;
}
return DD_OK;
}
/*
* DdClose
*/
static int DdClose(void **pp_handle) {
t_pdd pdd = (t_pdd)*pp_handle;
t_pPiece pPiece;
int CloseErrors = 0;
if (pdd->pPieceArr)
{
for (uint64_t i=0; i < pdd->Pieces; i++)
{
pPiece = &pdd->pPieceArr[i];
if (pPiece->pFile) {
if (fclose (pPiece->pFile)) CloseErrors=1;
}
if (pPiece->pFilename) free (pPiece->pFilename);
}
free (pdd->pPieceArr);
}
if (CloseErrors) return DD_CANNOT_CLOSE_FILE;
return DD_OK;
}
/*
* DdSize
*/
static int DdSize(void *p_handle, uint64_t *p_size) {
*p_size=((t_pdd)p_handle)->TotalSize;
return DD_OK;
}
/*
* DdRead
*/
static int DdRead(void *p_handle,
uint64_t seek,
char *p_buf,
uint32_t count)
{
uint32_t remaining=count;
uint32_t read;
if((seek+count)>((t_pdd)p_handle)->TotalSize) {
return DD_READ_BEYOND_END_OF_IMAGE;
}
do {
read=remaining;
CHK(DdRead0((t_pdd)p_handle,seek,p_buf,&read))
remaining-=read;
p_buf+=read;
seek+=read;
} while(remaining);
return DD_OK;
}
/*
* DdOptionsHelp
*/
static const char* DdOptionsHelp() {
return NULL;
}
/*
* DdOptionsParse
*/
static int DdOptionsParse(void *p_handle, char *p_options, char **pp_error) {
return DD_OK;
}
/*
* DdGetInfofileContent
*/
static int DdGetInfofileContent(void *p_handle, char **pp_info_buf) {
asprintf(pp_info_buf,
"DD image assembled of %" PRIu64 " pieces\n"
"%" PRIu64 " bytes in total (%0.3f GiB)\n",
((t_pdd)p_handle)->Pieces,
((t_pdd)p_handle)->TotalSize,
((t_pdd)p_handle)->TotalSize/(1024.0*1024.0*1024.0));
if(*pp_info_buf==NULL) return DD_MEMALLOC_FAILED;
return DD_OK;
}
/*
* DdGetErrorMessage
*/
static const char* DdGetErrorMessage(int err_num) {
switch(err_num) {
case DD_MEMALLOC_FAILED:
return "Unable to allocate memory";
break;
case DD_FILE_OPEN_FAILED:
return "Unable to open DD file(s)";
break;
case DD_CANNOT_READ_DATA:
return "Unable to read DD data";
break;
case DD_CANNOT_CLOSE_FILE:
return "Unable to close DD file(s)";
break;
case DD_CANNOT_SEEK:
return "Unable to seek into DD data";
break;
case DD_READ_BEYOND_END_OF_IMAGE:
return "Unable to read DD data: Attempt to read past EOF";
break;
default:
return "Unknown error";
}
}
/*
* DdFreeBuffer
*/
static void DdFreeBuffer(void *p_buf) {
free(p_buf);
}
// -----------------------------------------------------
// Small main routine for testing
// It a split dd file to non-split dd
// -----------------------------------------------------
#ifdef DD_MAIN_FOR_TESTING
int main(int argc, const char *argv[])
{
t_pdd pdd;
uint64_t TotalSize;
uint64_t Remaining;
uint64_t Read;
uint64_t Pos;
uint32_t BuffSize = 1024;
char Buff[BuffSize];
FILE *pFile;
int Percent;
int PercentOld;
int rc;
printf ("Split DD to DD converter\n");
if (argc < 3)
{
printf ("Usage: %s <dd part 1> <dd part 2> <...> <dd destination>\n", argv[0]);
exit (1);
}
if (DdOpen ((void**)&pdd, argc-2, &argv[1]) != DD_OK)
{
printf ("Cannot open split dd file\n");
exit (1);
}
CHK (DdSize ((void*)pdd, &TotalSize))
printf ("Total size: %llu bytes\n", TotalSize);
Remaining = TotalSize;
pFile = fopen (argv[argc-1], "w");
if (pFile == NULL)
{
printf ("Cannot open destination file\n");
exit (1);
}
Remaining = TotalSize;
Pos = 0;
PercentOld = -1;
while (Remaining)
{
Read = GETMIN (Remaining, BuffSize);
rc = DdRead ((void*)pdd, Pos, &Buff[0], Read);
if (rc != DD_OK)
{
printf ("Error %d while calling DdRead\n", rc);
exit (1);
}
if (fwrite (Buff, Read, 1, pFile) != 1)
{
printf ("Could not write to destinationfile\n");
exit (2);
}
Remaining -= Read;
Pos += Read;
Percent = (100*Pos) / TotalSize;
if (Percent != PercentOld)
{
printf ("\r%d%% done...", Percent);
PercentOld = Percent;
}
}
if (fclose (pFile))
{
printf ("Error while closing destinationfile\n");
exit (3);
}
printf ("\n");
return 0;
}
#endif // DD_MAIN_FOR_TESTING
diff --git a/trunk/libxmount_morphing/libxmount_morphing.h b/trunk/libxmount_morphing/libxmount_morphing.h
index ed022d4..61e4873 100644
--- a/trunk/libxmount_morphing/libxmount_morphing.h
+++ b/trunk/libxmount_morphing/libxmount_morphing.h
@@ -1,202 +1,203 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2014 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* 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/>. *
*******************************************************************************/
#ifndef LIBXMOUNT_MORPHING_H
#define LIBXMOUNT_MORPHING_H
#define LIBXMOUNT_MORPHING_API_VERSION 1
#include <config.h>
#include <stdint.h> // For int*_t and uint*_t
#include <inttypes.h> // For PRI*
typedef struct s_LibXmountMorphingInputImage {
void *p_image_handle;
- int (*Size)(void *p_handle, uint64_t *p_size);
- int (*Read)(void *p_handle, uint64_t offset, char *p_buf, uint32_t count);
+ uint64_t size;
+ int (*Read)(void *p_handle, char *p_buf, off_t offset, size_t count);
} ts_LibXmountMorphingInputImage, *pts_LibXmountMorphingInputImage;
//! Structure containing pointers to the lib's functions
typedef struct s_LibXmountMorphingFunctions {
//! Function to initialize handle
/*!
* This function is called once to allow the lib to alloc any needed
* structures before other functions that rely upon a valid handle are called
* (for ex. OptionsParse or Morph).
*
* The p_format parameter specifies one of the morphing functions returned by
* LibXmount_Morphing_GetSupportedMorphFunctions() which should be used for
* this handle.
*
* \param pp_handle Pointer to store handle to
- * \param p_morph_function Morph function to use
+ * \param p_type Morph type to use
* \return 0 on success or error code
*/
- int (*CreateHandle)(void **pp_handle, char *p_morph_function);
+ int (*CreateHandle)(void **pp_handle, char *p_type);
//! Function to destroy handle
/*!
* In this function, any structures allocated with CreateHandle should be
* freed. It is generally the last function called before unloading of lib
* happens.
*
* By convention, after this function has been called, *pp_handle must be
* NULL.
*
* \param pp_handle Pointer to store handle to
* \return 0 on success or error code
*/
int (*DestroyHandle)(void **pp_handle);
//! Function to start morphing
/*!
* Begins to morph input image
*
* \param p_handle Handle
* \param p_input_functions ts_LibXmountInputFunctions structure
* \return 0 on success or error code
*/
int (*Morph)(void *p_handle,
- pts_LibXmountMorphingInputImage *pp_input_images);
+ uint64_t input_images,
+ const pts_LibXmountMorphingInputImage *pp_input_images);
//! Function to get the size of the morphed data
/*!
* \param p_handle Handle to the opened image
* \param p_size Pointer to store input image's size to
* \return 0 on success or error code
*/
int (*Size)(void *p_handle,
uint64_t *p_size);
//! Function to read data from an input image
/*!
* Reads count bytes at offset from input image and copies them into memory
* starting at the address of p_buf. Memory is pre-allocated to as much bytes
* as should be read.
*
* \param p_handle Handle to the opened image
- * \param offset Position at which to start reading
* \param p_buf Buffer to store read data to
+ * \param offset Position at which to start reading
* \param count Amount of bytes to read
- * \return 0 on success or error code
+ * \return Read bytes on success or negated error code on error
*/
int (*Read)(void *p_handle,
char *p_buf,
- uint64_t offset,
- uint32_t count);
+ off_t offset,
+ size_t count);
//! Function to get a help message for any supported lib-specific options
/*!
* Calling this function should return a string containing help messages for
* any supported lib-specific options. Every line of this text must be
* prepended with 6 spaces.
*
* Returned string must be constant. It won't be freed!
*
* If there is no help text, this function must return NULL.
*
* \return Pointer to a null-terminated string containing the help text
*/
const char* (*OptionsHelp)();
//! Function to parse any lib-specific options
/*!
* This function is called with the options given with the --inopts parameter.
* All contained options are for the lib. If errors or unknown options are
* found, this function should fail and return an error message in pp_error.
* pp_error will be freed by the caller by using FreeBuffer.
*
* \param p_handle Handle to the opened image
* \param p_options String with specified options
* \param pp_error Pointer to a string with error message
* \return 0 on success or error code and error message
*/
int (*OptionsParse)(void *p_handle,
char *p_options,
char **pp_error);
//! Function to get content to add to the info file
/*!
* The returned string is added to xmount's info file. This function is only
* called once when the info file is generated. The returned string is then
* freed with a call to FreeBuffer.
*
* \param p_handle Handle to the opened image
* \param pp_info_buf Pointer to store the null-terminated content
* \return 0 on success or error code
*/
int (*GetInfofileContent)(void *p_handle,
char **pp_info_buf);
//! Function to get an error message
/*!
* This function should translate an error code that was previously returned
* by one of the library functions into a human readable error message.
*
* By convention, this function must always return a valid pointer to a
* NULL-terminated string!
*
* \param err_num Error code as returned by lib
*/
const char* (*GetErrorMessage)(int err_num);
//! Function to free buffers that were allocated by lib
/*!
* \param p_buf Buffer to free
*/
void (*FreeBuffer)(void *p_buf);
} ts_LibXmountMorphingFunctions, *pts_LibXmountMorphingFunctions;
//! Get library API version
/*!
* This function should return the value of LIBXMOUNT_MORPHING_API_VERSION
*
* \return Supported version
*/
uint8_t LibXmount_Morphing_GetApiVersion();
typedef uint8_t (*t_LibXmount_Morphing_GetApiVersion)();
//! Get a list of supported morphing functions
/*!
* Gets a list of supported morphing functions. These is the string
* specified with xmount's --morph <string> command line option. The returned
* string must be a constant vector of morphing functions split by \0 chars. To
* mark the end of the vector, a single \0 must be used.
*
* As an example, "first\0second\0\0" would be a correct string to return for
* a lib supporting two morphing functions.
*
* \return Vector containing supported morphing functions
*/
const char* LibXmount_Morphing_GetSupportedTypes();
typedef const char* (*t_LibXmount_Morphing_GetSupportedTypes)();
//! Get the lib's s_LibXmountMorphingFunctions structure
/*!
* This function should set the members of the given
* s_LibXmountMorphingFunctions structure to the internal lib functions. All
* members have to be set.
*
* \param p_functions s_LibXmountMorphingFunctions structure to fill
*/
void LibXmount_Morphing_GetFunctions(pts_LibXmountMorphingFunctions p_functions);
typedef void (*t_LibXmount_Morphing_GetFunctions)(pts_LibXmountMorphingFunctions);
#endif // LIBXMOUNT_MORPHING_H
diff --git a/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.c b/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.c
index e69de29..b540e16 100644
--- a/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.c
+++ b/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.c
@@ -0,0 +1,231 @@
+/*******************************************************************************
+* xmount Copyright (c) 2008-2014 by Gillen Daniel <gillen.dan@pinguin.lu> *
+* *
+* 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 <stdlib.h>
+#include <string.h>
+
+#include "../libxmount_morphing.h"
+#include "libxmount_morphing_combine.h"
+
+/*******************************************************************************
+ * LibXmount_Morphing API implementation
+ ******************************************************************************/
+/*
+ * LibXmount_Morphing_GetApiVersion
+ */
+uint8_t LibXmount_Morphing_GetApiVersion() {
+ return LIBXMOUNT_MORPHING_API_VERSION;
+}
+
+/*
+ * LibXmount_Morphing_GetSupportedFormats
+ */
+const char* LibXmount_Morphing_GetSupportedTypes() {
+ return "combine\0\0";
+}
+
+/*
+ * LibXmount_Morphing_GetFunctions
+ */
+void LibXmount_Morphing_GetFunctions(ts_LibXmountMorphingFunctions *p_functions)
+{
+ p_functions->CreateHandle=&CombineCreateHandle;
+ p_functions->DestroyHandle=&CombineDestroyHandle;
+ p_functions->Morph=&CombineMorph;
+ p_functions->Size=&CombineSize;
+ p_functions->Read=&CombineRead;
+ p_functions->OptionsHelp=&CombineOptionsHelp;
+ p_functions->OptionsParse=&CombineOptionsParse;
+ p_functions->GetInfofileContent=&CombineGetInfofileContent;
+ p_functions->GetErrorMessage=&CombineGetErrorMessage;
+ p_functions->FreeBuffer=&CombineFreeBuffer;
+}
+
+/*******************************************************************************
+ * Private
+ ******************************************************************************/
+/*
+ * CombineCreateHandle
+ */
+static int CombineCreateHandle(void **pp_handle, char *p_format) {
+ pts_CombineHandle p_handle;
+
+ // Alloc new handle
+ p_handle=malloc(sizeof(ts_CombineHandle));
+ if(p_handle==NULL) return COMBINE_MEMALLOC_FAILED;
+
+ // Init handle values
+ p_handle->input_images_count=0;
+ p_handle->pp_input_images=NULL;
+ p_handle->morphed_image_size=0;
+
+ // Return new handle
+ *pp_handle=p_handle;
+ return COMBINE_OK;
+}
+
+/*
+ * CombineDestroyHandle
+ */
+static int CombineDestroyHandle(void **pp_handle) {
+ pts_CombineHandle p_handle=(pts_CombineHandle)*pp_handle;
+
+ // Free handle
+ free(p_handle);
+
+ *pp_handle=NULL;
+ return COMBINE_OK;
+}
+
+/*
+ * CombineMorph
+ */
+static int CombineMorph(void *p_handle,
+ uint64_t input_images,
+ const pts_LibXmountMorphingInputImage *pp_input_images)
+{
+ pts_CombineHandle p_combine_handle=(pts_CombineHandle)p_handle;
+
+ // Add given values to out handle
+ p_combine_handle->input_images_count=input_images;
+ p_combine_handle->pp_input_images=pp_input_images;
+
+ // Calculate morphed image size
+ for(uint64_t i=0;i<input_images;i++) {
+ p_combine_handle->morphed_image_size+=pp_input_images[i]->size;
+ }
+
+ return COMBINE_OK;
+}
+
+/*
+ * CombineSize
+ */
+static int CombineSize(void *p_handle, uint64_t *p_size) {
+ *p_size=((pts_CombineHandle)(p_handle))->morphed_image_size;
+ return COMBINE_OK;
+}
+
+/*
+ * CombineRead
+ */
+static int CombineRead(void *p_handle,
+ char *p_buf,
+ off_t offset,
+ size_t count)
+{
+ pts_CombineHandle p_combine_handle=(pts_CombineHandle)p_handle;
+ uint64_t cur_input_image=0;
+ off_t cur_offset=offset;
+ int ret;
+ size_t cur_count;
+
+ // Make sure read parameters are within morphed image bounds
+ if(offset>=p_combine_handle->morphed_image_size ||
+ offset+count>p_combine_handle->morphed_image_size)
+ {
+ return COMBINE_READ_BEYOND_END_OF_IMAGE;
+ }
+
+ // Search starting image to read from
+ while(cur_offset>=p_combine_handle->pp_input_images[cur_input_image]->size) {
+ cur_offset-=p_combine_handle->pp_input_images[cur_input_image]->size;
+ cur_input_image++;
+ }
+
+ // Read data
+ while(count!=0) {
+ // Calculate how many bytes to read from current input image
+ if(cur_offset+count>
+ p_combine_handle->pp_input_images[cur_input_image]->size)
+ {
+ cur_count=
+ p_combine_handle->pp_input_images[cur_input_image]->size-cur_offset;
+ } else {
+ cur_count=count;
+ }
+
+ // Read bytes
+ ret=p_combine_handle->pp_input_images[cur_input_image]->
+ Read(p_combine_handle->pp_input_images[cur_input_image]->
+ p_image_handle,
+ p_buf,
+ cur_offset,
+ cur_count);
+ if(ret==-1) return COMBINE_CANNOT_READ_DATA;
+
+ p_buf+=cur_count;
+ cur_offset=0;
+ count-=cur_count;
+ cur_input_image++;
+ }
+
+ return COMBINE_OK;
+}
+
+/*
+ * CombineOptionsHelp
+ */
+static const char* CombineOptionsHelp() {
+ return COMBINE_OK;
+}
+
+/*
+ * CombineOptionsParse
+ */
+static int CombineOptionsParse(void *p_handle,
+ char *p_options,
+ char **pp_error)
+{
+ *pp_error=NULL;
+ return COMBINE_OK;
+}
+
+/*
+ * CombineGetInfofileContent
+ */
+static int CombineGetInfofileContent(void *p_handle, char **pp_info_buf) {
+ *pp_info_buf=NULL;
+ return COMBINE_OK;
+}
+
+/*
+ * CombineGetErrorMessage
+ */
+static const char* CombineGetErrorMessage(int err_num) {
+ switch(err_num) {
+ case COMBINE_MEMALLOC_FAILED:
+ return "Unable to allocate memory";
+ break;
+ case COMBINE_READ_BEYOND_END_OF_IMAGE:
+ return "Unable to read data: Attempt to read past EOF";
+ break;
+ case COMBINE_CANNOT_READ_DATA:
+ return "Unable to read data";
+ break;
+ default:
+ return "Unknown error";
+ }
+}
+
+/*
+ * CombineFreeBuffer
+ */
+static void CombineFreeBuffer(void *p_buf) {
+ free(p_buf);
+}
+
diff --git a/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.h b/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.h
index e69de29..11b0bcb 100644
--- a/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.h
+++ b/trunk/libxmount_morphing/libxmount_morphing_combine/libxmount_morphing_combine.h
@@ -0,0 +1,62 @@
+/*******************************************************************************
+* xmount Copyright (c) 2008-2014 by Gillen Daniel <gillen.dan@pinguin.lu> *
+* *
+* 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/>. *
+*******************************************************************************/
+
+#ifndef LIBXMOUNT_MORPHING_COMBINE_H
+#define LIBXMOUNT_MORPHING_COMBINE_H
+
+/*******************************************************************************
+ * Error codes etc...
+ ******************************************************************************/
+enum {
+ COMBINE_OK=0,
+ COMBINE_MEMALLOC_FAILED,
+ COMBINE_READ_BEYOND_END_OF_IMAGE,
+ COMBINE_CANNOT_READ_DATA
+};
+
+typedef struct s_CombineHandle {
+ uint64_t input_images_count;
+ const pts_LibXmountMorphingInputImage *pp_input_images;
+ uint64_t morphed_image_size;
+} ts_CombineHandle, *pts_CombineHandle;
+
+/*******************************************************************************
+ * Forward declarations
+ ******************************************************************************/
+static int CombineCreateHandle(void **pp_handle,
+ char *p_format);
+static int CombineDestroyHandle(void **pp_handle);
+static int CombineMorph(void *p_handle,
+ uint64_t input_images,
+ const pts_LibXmountMorphingInputImage *pp_input_images);
+static int CombineSize(void *p_handle,
+ uint64_t *p_size);
+static int CombineRead(void *p_handle,
+ char *p_buf,
+ off_t offset,
+ size_t count);
+static const char* CombineOptionsHelp();
+static int CombineOptionsParse(void *p_handle,
+ char *p_options,
+ char **pp_error);
+static int CombineGetInfofileContent(void *p_handle,
+ char **pp_info_buf);
+static const char* CombineGetErrorMessage(int err_num);
+static void CombineFreeBuffer(void *p_buf);
+
+#endif // LIBXMOUNT_MORPHING_COMBINE_H
+
diff --git a/trunk/src/xmount.c b/trunk/src/xmount.c
index fd66dd0..ce6b4b5 100755
--- a/trunk/src/xmount.c
+++ b/trunk/src/xmount.c
@@ -1,3514 +1,3573 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2014 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 <stdarg.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 "xmount.h"
#include "md5.h"
#include "endianness.h"
#include "macros.h"
#define XMOUNT_COPYRIGHT_NOTICE \
"xmount v%s Copyright (c) 2008-2014 by Gillen Daniel <gillen.dan@pinguin.lu>"
/*******************************************************************************
* Global vars
******************************************************************************/
//! Struct that contains various runtime configuration options
static ts_XmountData glob_xmount;
-//! Structs containing pointers to the libxmount_inputfunctions
+//! Structs containing pointers to the libxmount_input functions
static uint32_t glob_input_libs_count=0;
static pts_InputLib *glob_pp_input_libs=NULL;
//! Structs containing pointers to the libxmount_morphing functions
static uint32_t glob_morphing_libs_count=0;
static pts_MorphingLib *glob_pp_morphing_libs=NULL;
pts_LibXmountMorphingFunctions glob_p_morphing_functions=NULL;
void *glob_p_morphing_handle=NULL;
+pts_LibXmountMorphingInputImage *glob_pp_morphing_input_images=NULL;
//! Pointer to virtual info file
static char *glob_p_info_file=NULL;
//! Vars needed for VDI emulation
static pts_VdiFileHeader glob_p_vdi_header=NULL;
static uint32_t glob_vdi_header_size=0;
static char *glob_p_vdi_block_map=NULL;
static uint32_t glob_p_vdi_block_map_size=0;
//! Vars needed for VHD emulation
static ts_VhdFileHeader *glob_p_vhd_header=NULL;
//! Vars needed for VMDK emulation
static char *glob_p_vmdk_file=NULL;
static int glob_vmdk_file_size=0;
static char *glob_p_vmdk_lockdir1=NULL;
static char *glob_p_vmdk_lockdir2=NULL;
static char *glob_p_vmdk_lockfile_data=NULL;
static int glob_vmdk_lockfile_size=0;
static char *glob_p_vmdk_lockfile_name=NULL;
//! Vars needed for virtual write access
static FILE *glob_p_cache_file=NULL;
static pts_CacheFileHeader glob_p_cache_header=NULL;
static pts_CacheFileBlockIndex glob_p_cache_blkidx=NULL;
//! Mutexes to control concurrent read & write access
static pthread_mutex_t glob_mutex_image_rw;
static pthread_mutex_t glob_mutex_info_read;
/*******************************************************************************
* Helper functions
******************************************************************************/
//! Print error and debug messages to stdout
/*!
* \param p_msg_type "ERROR" or "DEBUG"
* \param p_calling_fun Name of calling function
* \param line Line number of call
* \param p_msg Message string
* \param ... Variable params with values to include in message string
*/
static void LogMessage(char *p_msg_type,
char *p_calling_fun,
int line,
char *p_msg,
...)
{
va_list var_list;
// Print message "header"
printf("%s: %s.%s@%u : ",p_msg_type,p_calling_fun,XMOUNT_VERSION,line);
// Print message with variable parameters
va_start(var_list,p_msg);
vprintf(p_msg,var_list);
va_end(var_list);
}
//! 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=1;
printf("\n" XMOUNT_COPYRIGHT_NOTICE "\n",XMOUNT_VERSION);
printf("\nUsage:\n");
printf(" %s [fopts] --in <itype> <ifile> [<mopts>] <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 <fmopts> : Specify fuse mount options. Will also disable "
"automatic addition of FUSE's allow_other option!\n");
printf("\n");
printf(" mopts:\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
for(uint32_t i=0;i<glob_input_libs_count;i++) {
p_buf=glob_pp_input_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 possible values.\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 ");
// TODO: List supported morphing functions
printf(".\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("\"dd\".\n");
#endif
printf(" <otype> can be ");
// List supported output formats
printf("\"dd\", \"dmg\", \"vdi\", \"vhd\", \"vmdk\", \"vmdks\".\n");
printf(" --owcache <file> : Same as --cache <file> but overwrites "
"existing cache file.\n");
printf(" --version : Same as --info.\n");
printf("\n");
printf(" mntp:\n");
printf(" Mount point where virtual files should be located.\n");
printf("\n");
printf("Infos:\n");
printf(" * The --in option is mandatory!\n");
printf(" * If you specify --in multiple times, all images are morphed "
"using the specified morphing function before they are converted to "
"the specified output format.\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 library specific options:\n");
printf(" Some input libraries might support an own set of options to "
"configure / tune their behaviour.\n");
printf(" Input libraries supporting this feature (if any) and and their "
"options are listed below.\n");
printf("\n");
// List input lib options
for(uint32_t i=0;i<glob_input_libs_count;i++) {
p_buf=(char*)glob_pp_input_libs[i]->lib_functions.OptionsHelp();
if(p_buf==NULL) continue;
printf(" - %s\n",glob_pp_input_libs[i]->p_name);
printf("%s\n",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
* \param p_nargv Number of FUSE options is written to this var
* \param ppp_nargv FUSE options are written to this array
* \param pp_mountpoint Mountpoint is written to this var
* \return TRUE on success, FALSE on error
*/
static int ParseCmdLine(const int argc,
char **pp_argv,
int *p_nargv,
char ***ppp_nargv,
char **pp_mountpoint)
{
int i=1,opts=0,FuseMinusOControl=TRUE,FuseAllowOther=TRUE,first;
char *p_buf;
pts_InputImage p_input_image;
// add pp_argv[0] to ppp_nargv
opts++;
XMOUNT_MALLOC(*ppp_nargv,char**,opts*sizeof(char*))
XMOUNT_STRSET((*ppp_nargv)[opts-1],pp_argv[0])
// 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
opts++;
XMOUNT_REALLOC(*ppp_nargv,char**,opts*sizeof(char*))
XMOUNT_STRSET((*ppp_nargv)[opts-1],pp_argv[i])
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 / lib mount options
if((argc+1)>i) {
i++;
// As the user specified the -o option, we assume he knows what he is
// doing. We won't append allow_other automatically. And we allow him
// to disable allow_other by passing a single "-o no_allow_other"
// which won't be passed to FUSE as it is xmount specific.
if(strcmp(pp_argv[i],"no_allow_other")!=0) {
opts+=2;
XMOUNT_REALLOC(*ppp_nargv,char**,opts*sizeof(char*))
XMOUNT_STRSET((*ppp_nargv)[opts-2],pp_argv[i-1])
XMOUNT_STRSET((*ppp_nargv)[opts-1],pp_argv[i])
FuseMinusOControl=FALSE;
} else FuseAllowOther=FALSE;
} else {
LOG_ERROR("Couldn't parse mount options!\n")
return FALSE;
}
} else if(strcmp(pp_argv[i],"-s")==0) {
// Enable FUSE's single threaded mode
opts++;
XMOUNT_REALLOC(*ppp_nargv,char**,opts*sizeof(char*))
XMOUNT_STRSET((*ppp_nargv)[opts-1],pp_argv[i])
} else if(strcmp(pp_argv[i],"-V")==0) {
// Display FUSE version info
opts++;
XMOUNT_REALLOC(*ppp_nargv,char**,opts*sizeof(char*))
XMOUNT_STRSET((*ppp_nargv)[opts-1],pp_argv[i])
} 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((argc+1)>i) {
i++;
XMOUNT_STRSET(glob_xmount.p_cache_file,pp_argv[i])
glob_xmount.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.p_cache_file)
} else if(strcmp(pp_argv[i],"--in")==0) {
// Specify input image type and source files
if((argc+2)>i) {
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) && strcmp(pp_argv[i],"--")!=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) {
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;
}
// Add input image struct to input image array
glob_xmount.input_images_count++;
XMOUNT_REALLOC(glob_xmount.pp_input_images,
pts_InputImage*,
glob_xmount.input_images_count*
sizeof(pts_InputImage));
glob_xmount.pp_input_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) {
if((argc+1)>i) {
i++;
if(glob_xmount.p_lib_params==NULL) {
XMOUNT_STRSET(glob_xmount.p_lib_params,pp_argv[i]);
} 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],"--out")==0) {
// Specify output image type
// Next parameter must be image type
if((argc+1)>i) {
i++;
if(strcmp(pp_argv[i],"dd")==0) {
glob_xmount.VirtImageType=VirtImageType_DD;
LOG_DEBUG("Setting virtual image type to DD\n")
} else if(strcmp(pp_argv[i],"dmg")==0) {
glob_xmount.VirtImageType=VirtImageType_DMG;
LOG_DEBUG("Setting virtual image type to DMG\n")
} else if(strcmp(pp_argv[i],"vdi")==0) {
glob_xmount.VirtImageType=VirtImageType_VDI;
LOG_DEBUG("Setting virtual image type to VDI\n")
} else if(strcmp(pp_argv[i],"vhd")==0) {
glob_xmount.VirtImageType=VirtImageType_VHD;
LOG_DEBUG("Setting virtual image type to VHD\n")
} else if(strcmp(pp_argv[i],"vmdk")==0) {
glob_xmount.VirtImageType=VirtImageType_VMDK;
LOG_DEBUG("Setting virtual image type to VMDK\n")
} else if(strcmp(pp_argv[i],"vmdks")==0) {
glob_xmount.VirtImageType=VirtImageType_VMDKS;
LOG_DEBUG("Setting virtual image type to VMDKS\n")
} else {
LOG_ERROR("Unknown output image type \"%s\"!\n",pp_argv[i])
return FALSE;
}
} else {
LOG_ERROR("You must specify an output image type!\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((argc+1)>i) {
i++;
XMOUNT_STRSET(glob_xmount.p_cache_file,pp_argv[i])
glob_xmount.writable=TRUE;
glob_xmount.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.p_cache_file)
} else if(strcmp(pp_argv[i],"--version")==0 ||
strcmp(pp_argv[i],"--info")==0)
{
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_input_libs_count;ii++) {
printf(" - %s supporting ",glob_pp_input_libs[ii]->p_name);
p_buf=glob_pp_input_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_morphing_libs_count;ii++) {
+ printf(" - %s supporting ",glob_pp_morphing_libs[ii]->p_name);
+ p_buf=glob_pp_morphing_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("\n");
exit(0);
} else if(strcmp(pp_argv[i],"--offset")==0) {
if((argc+1)>i) {
i++;
glob_xmount.orig_img_offset=strtoull(pp_argv[i],NULL,10);
} else {
LOG_ERROR("You must specify an offset!\n")
return FALSE;
}
LOG_DEBUG("Setting input image offset to \"%" PRIu64 "\"\n",
glob_xmount.orig_img_offset)
} else {
LOG_ERROR("Unknown command line option \"%s\"\n",pp_argv[i]);
return FALSE;
}
}
i++;
}
// Extract mountpoint
if(i==(argc-1)) {
XMOUNT_STRSET(*pp_mountpoint,pp_argv[argc-1])
opts++;
XMOUNT_REALLOC(*ppp_nargv,char**,opts*sizeof(char*))
XMOUNT_STRSET((*ppp_nargv)[opts-1],*pp_mountpoint)
} else {
LOG_ERROR("No mountpoint specified!\n")
return FALSE;
}
if(FuseMinusOControl==TRUE) {
// We control the -o flag, set subtype, fsname and allow_other options
opts+=2;
XMOUNT_REALLOC(*ppp_nargv,char**,opts*sizeof(char*));
XMOUNT_STRSET((*ppp_nargv)[opts-2],"-o");
XMOUNT_STRSET((*ppp_nargv)[opts-1],"subtype=xmount");
if(glob_xmount.input_images_count!=0) {
// Set name of first source file as fsname
XMOUNT_STRAPP((*ppp_nargv)[opts-1],",fsname=");
XMOUNT_STRAPP((*ppp_nargv)[opts-1],
glob_xmount.pp_input_images[0]->pp_files[0]);
}
if(FuseAllowOther==TRUE) {
// Add "allow_other" option if allowed
if(glob_xmount.may_set_fuse_allow_other) {
XMOUNT_STRAPP((*ppp_nargv)[opts-1],",allow_other")
}
}
}
*p_nargv=opts;
return TRUE;
}
//! Extract virtual 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) {
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.p_virtual_image_path,"/")
XMOUNT_STRSET(glob_xmount.p_virtual_info_path,"/")
if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
XMOUNT_STRSET(glob_xmount.p_virtual_vmdk_path,"/")
}
// Copy filename
if(tmp==NULL) {
// Input image filename has no extension
XMOUNT_STRAPP(glob_xmount.p_virtual_image_path,p_orig_name)
XMOUNT_STRAPP(glob_xmount.p_virtual_info_path,p_orig_name)
if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
XMOUNT_STRAPP(glob_xmount.p_virtual_vmdk_path,p_orig_name)
}
XMOUNT_STRAPP(glob_xmount.p_virtual_info_path,".info")
} else {
XMOUNT_STRNAPP(glob_xmount.p_virtual_image_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp))
XMOUNT_STRNAPP(glob_xmount.p_virtual_info_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp))
if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
XMOUNT_STRNAPP(glob_xmount.p_virtual_vmdk_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp))
}
XMOUNT_STRAPP(glob_xmount.p_virtual_info_path,".info")
}
// Add virtual file extensions
switch(glob_xmount.VirtImageType) {
case VirtImageType_DD:
XMOUNT_STRAPP(glob_xmount.p_virtual_image_path,".dd")
break;
case VirtImageType_DMG:
XMOUNT_STRAPP(glob_xmount.p_virtual_image_path,".dmg")
break;
case VirtImageType_VDI:
XMOUNT_STRAPP(glob_xmount.p_virtual_image_path,".vdi")
break;
case VirtImageType_VHD:
XMOUNT_STRAPP(glob_xmount.p_virtual_image_path,".vhd")
break;
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
XMOUNT_STRAPP(glob_xmount.p_virtual_image_path,".dd")
XMOUNT_STRAPP(glob_xmount.p_virtual_vmdk_path,".vmdk")
break;
default:
LOG_ERROR("Unknown virtual image type!\n")
return FALSE;
}
LOG_DEBUG("Set virtual image name to \"%s\"\n",
glob_xmount.p_virtual_image_path)
LOG_DEBUG("Set virtual image info name to \"%s\"\n",
glob_xmount.p_virtual_info_path)
if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
LOG_DEBUG("Set virtual vmdk name to \"%s\"\n",
glob_xmount.p_virtual_vmdk_path)
}
return TRUE;
}
//! Get size of input image
/*!
* \param p_image Image for which to retrieve size
* \param p_size Buf to save size to
* \return TRUE on success, FALSE on error
*/
static int GetInputImageSize(pts_InputImage p_image, uint64_t *p_size) {
int ret;
// Check if size has been saved
if(p_image->size!=0) {
// Size was saved, return that value
*p_size=p_image->size;
return TRUE;
}
// Size has not been saved, get it
ret=p_image->p_functions->Size(p_image->p_handle,p_size);
if(ret!=0) {
LOG_ERROR("Unable to determine size of input image '%s': %s!\n",
p_image->pp_files[0],
p_image->p_functions->GetErrorMessage(ret));
return FALSE;
}
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_p_morphing_functions->Size(glob_p_morphing_handle,p_size);
if(ret!=0) {
LOG_ERROR("Unable to get morphed image size: %s!\n",
glob_p_morphing_functions->GetErrorMessage(ret));
return FALSE;
}
return TRUE;
}
//! Get size of virtual 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) {
if(glob_xmount.virt_image_size!=0) {
*p_size=glob_xmount.virt_image_size;
return TRUE;
}
switch(glob_xmount.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_p_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;
}
glob_xmount.virt_image_size=*p_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)
* \return Number of read bytes on success or "-1" on error
*/
static ssize_t GetInputImageData(pts_InputImage p_image,
char *p_buf,
off_t offset,
size_t size)
{
ssize_t ret;
size_t to_read=0;
uint64_t image_size=0;
// Make sure we aren't reading past EOF of image file
if(!GetInputImageSize(p_image,&image_size)) {
LOG_ERROR("Couldn't get input image size!\n")
return -1;
}
if(offset>=image_size) {
// Offset is beyond image size
LOG_DEBUG("Offset is beyond input image size.\n")
return 0;
}
if(offset+size>image_size) {
// Attempt to read data past EOF of image file
to_read=image_size-offset;
LOG_DEBUG("Attempt to read data past EOF of input image. Corrected size "
"from %zd to %zd.\n",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,
offset+glob_xmount.orig_img_offset,
p_buf,
to_read);
if(ret!=0) {
LOG_ERROR("Couldn't read %zd bytes at offset %" PRIu64
- " from input iamge!\n",
+ " from input image!\n",
to_read,
offset,
p_image->p_functions->GetErrorMessage(ret));
return -1;
}
return to_read;
}
+//! Wrapper for GetInputImageData
+static int GetInputImageData_MorphWrapper(void *p_image,
+ char *p_buf,
+ off_t offset,
+ size_t size)
+{
+ return GetInputImageData((pts_InputImage)p_image,p_buf,offset,size);
+}
+
//! 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)
* \return Number of read bytes on success or "-1" on error
*/
static ssize_t GetMorphedImageData(char *p_buf, off_t offset, size_t size) {
int ret;
size_t to_read=0;
uint64_t image_size=0;
// Make sure we aren't reading past EOF of image file
if(!GetMorphedImageSize(&image_size)) {
LOG_ERROR("Couldn't get morphed image size!\n")
return -1;
}
if(offset>=image_size) {
// Offset is beyond image size
LOG_DEBUG("Offset is beyond morphed image size.\n")
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 %zd to %zd.\n",
size,
to_read);
} else to_read=size;
// Read data from morphed image
ret=glob_p_morphing_functions->Read(glob_p_morphing_handle,
p_buf,
offset,
to_read);
if(ret!=0) {
LOG_ERROR("Couldn't read %zd bytes at offset %" PRIu64
" from morphed image!\n",
to_read,
offset,
glob_p_morphing_functions->GetErrorMessage(ret));
return -1;
}
return to_read;
}
//! Read data from virtual 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 to_read=0, cur_to_read=0;
off_t file_off=offset, block_off=0;
size_t to_read_later=0;
// Get virtual image size
if(!GetVirtImageSize(&virt_image_size)) {
LOG_ERROR("Couldn't get virtual image size!\n")
return -EIO;
}
if(offset>=virt_image_size) {
LOG_ERROR("Attempt to read behind EOF of virtual image!\n")
return 0;
}
if(offset+size>virt_image_size) {
LOG_DEBUG("Attempt to read pas EOF of virtual image file\n")
LOG_DEBUG("Adjusting read size from %u to %u\n",size,virt_image_size-offset)
size=virt_image_size-offset;
}
to_read=size;
if(!GetMorphedImageSize(&morphed_image_size)) {
LOG_ERROR("Couldn't get morphed image size!")
return -EIO;
}
// Read virtual image type specific data preceeding morphed image data
switch(glob_xmount.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
break;
case VirtImageType_VDI:
if(file_off<glob_vdi_header_size) {
if(file_off+to_read>glob_vdi_header_size) {
cur_to_read=glob_vdi_header_size-file_off;
} else {
cur_to_read=to_read;
}
if(glob_xmount.writable==TRUE &&
glob_p_cache_header->VdiFileHeaderCached==TRUE)
{
// VDI header was already cached
if(fseeko(glob_p_cache_file,
glob_p_cache_header->pVdiFileHeader+file_off,
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to cached VDI header at offset %"
PRIu64 "\n",glob_p_cache_header->pVdiFileHeader+file_off)
return -EIO;
}
if(fread(p_buf,cur_to_read,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't read %zu bytes from cache file at offset %"
PRIu64 "\n",cur_to_read,
glob_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_p_cache_header->pVdiFileHeader+file_off)
} else {
// VDI header isn't cached
memcpy(p_buf,((char*)glob_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_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.writable==TRUE &&
glob_p_cache_blkidx[cur_block].Assigned==TRUE)
{
// Write support enabled and need to read altered data from cachefile
if(fseeko(glob_p_cache_file,
glob_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_p_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
if(GetMorphedImageData(p_buf,
file_off,
cur_to_read)!=cur_to_read)
{
LOG_ERROR("Couldn't read data from virtual image!\n")
return -EIO;
}
LOG_DEBUG("Read %zd bytes at offset %" PRIu64
" 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.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.writable==TRUE &&
glob_p_cache_header->VhdFileHeaderCached==TRUE)
{
// VHD footer was already cached
if(fseeko(glob_p_cache_file,
glob_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_p_cache_header->pVhdFileHeader+
(file_off-morphed_image_size))
return -EIO;
}
if(fread(p_buf,to_read_later,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't read %zu bytes from cache file at offset %"
PRIu64 "\n",to_read_later,
glob_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_p_cache_header->pVhdFileHeader+
(file_off-morphed_image_size))
} else {
// VHD header isn't cached
memcpy(p_buf,
((char*)glob_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_vdi_header_size) size=glob_vdi_header_size-offset;
LOG_DEBUG("Need to cache %zu bytes at offset %" PRIu64
" from VDI header\n",size,offset)
if(glob_p_cache_header->VdiFileHeaderCached==1) {
// Header was already cached
if(fseeko(glob_p_cache_file,
glob_p_cache_header->pVdiFileHeader+offset,
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to cached VDI header at address %"
PRIu64 "\n",glob_p_cache_header->pVdiFileHeader+offset)
return -1;
}
if(fwrite(p_buf,size,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
PRIu64 "\n",size,
glob_p_cache_header->pVdiFileHeader+offset)
return -1;
}
LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n",
size,glob_p_cache_header->pVdiFileHeader+offset)
} else {
// Header wasn't already cached.
if(fseeko(glob_p_cache_file,
0,
SEEK_END)!=0)
{
LOG_ERROR("Couldn't seek to end of cache file!")
return -1;
}
glob_p_cache_header->pVdiFileHeader=ftello(glob_p_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_p_vdi_header,offset,1,glob_p_cache_file)!=1) {
LOG_ERROR("Error while writing %" PRIu64 " bytes "
"to cache file at offset %" PRIu64 "!\n",
offset,
glob_p_cache_header->pVdiFileHeader);
return -1;
}
LOG_DEBUG("Prepended changed data with %" PRIu64
" bytes at cache file offset %" PRIu64 "\n",
offset,glob_p_cache_header->pVdiFileHeader)
}
// Cache changed data
if(fwrite(p_buf,size,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
PRIu64 "\n",size,
glob_p_cache_header->pVdiFileHeader+offset)
return -1;
}
LOG_DEBUG("Wrote %zu bytes of changed data to cache file offset %"
PRIu64 "\n",size,
glob_p_cache_header->pVdiFileHeader+offset)
if(offset+size!=glob_vdi_header_size) {
// Need to append data from VDI header to cache whole data struct
if(fwrite(((char*)glob_p_vdi_header)+offset+size,
glob_vdi_header_size-(offset+size),
1,
glob_p_cache_file)!=1)
{
LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
PRIu64 "\n",glob_vdi_header_size-(offset+size),
(uint64_t)(glob_p_cache_header->pVdiFileHeader+offset+size))
return -1;
}
LOG_DEBUG("Appended %" PRIu32
" bytes to changed data at cache file offset %"
PRIu64 "\n",glob_vdi_header_size-(offset+size),
glob_p_cache_header->pVdiFileHeader+offset+size)
}
// Mark header as cached and update header in cache file
glob_p_cache_header->VdiFileHeaderCached=1;
if(fseeko(glob_p_cache_file,0,SEEK_SET)!=0) {
LOG_ERROR("Couldn't seek to offset 0 of cache file!\n")
return -1;
}
if(fwrite((char*)glob_p_cache_header,
sizeof(ts_CacheFileHeader),
1,
glob_p_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_p_cache_file);
#ifndef __APPLE__
ioctl(fileno(glob_p_cache_file),BLKFLSBUF,0);
#endif
return size;
}
//! Write data to virtual VHD file footer
/*!
* \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 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_p_cache_header->VhdFileHeaderCached==1) {
// Header has already been cached
if(fseeko(glob_p_cache_file,
glob_p_cache_header->pVhdFileHeader+offset,
SEEK_SET)!=0)
{
LOG_ERROR("Couldn't seek to cached VHD header at address %"
PRIu64 "\n",glob_p_cache_header->pVhdFileHeader+offset)
return -1;
}
if(fwrite(p_buf,size,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
PRIu64 "\n",size,
glob_p_cache_header->pVhdFileHeader+offset)
return -1;
}
LOG_DEBUG("Wrote %zd bytes at offset %" PRIu64 " to cache file\n",
size,glob_p_cache_header->pVhdFileHeader+offset)
} else {
// Header hasn't been cached yet.
if(fseeko(glob_p_cache_file,
0,
SEEK_END)!=0)
{
LOG_ERROR("Couldn't seek to end of cache file!")
return -1;
}
glob_p_cache_header->pVhdFileHeader=ftello(glob_p_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_p_vhd_header,offset,1,glob_p_cache_file)!=1) {
LOG_ERROR("Error while writing %" PRIu64 " bytes "
"to cache file at offset %" PRIu64 "!\n",
offset,
glob_p_cache_header->pVhdFileHeader);
return -1;
}
LOG_DEBUG("Prepended changed data with %" PRIu64
" bytes at cache file offset %" PRIu64 "\n",
offset,glob_p_cache_header->pVhdFileHeader)
}
// Cache changed data
if(fwrite(p_buf,size,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't write %zu bytes to cache file at offset %"
PRIu64 "\n",size,
glob_p_cache_header->pVhdFileHeader+offset)
return -1;
}
LOG_DEBUG("Wrote %zu bytes of changed data to cache file offset %"
PRIu64 "\n",size,
glob_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_p_vhd_header)+offset+size,
sizeof(ts_VhdFileHeader)-(offset+size),
1,
glob_p_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_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_p_cache_header->pVhdFileHeader+offset+size)
}
// Mark header as cached and update header in cache file
glob_p_cache_header->VhdFileHeaderCached=1;
if(fseeko(glob_p_cache_file,0,SEEK_SET)!=0) {
LOG_ERROR("Couldn't seek to offset 0 of cache file!\n")
return -1;
}
if(fwrite((char*)glob_p_cache_header,
sizeof(ts_CacheFileHeader),
1,
glob_p_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_p_cache_file);
#ifndef __APPLE__
ioctl(fileno(glob_p_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;
ssize_t ret;
// Get virtual image size
if(!GetVirtImageSize(&virt_image_size)) {
LOG_ERROR("Couldn't get virtual image size!\n")
return -1;
}
if(offset>=virt_image_size) {
LOG_ERROR("Attempt to write beyond EOF of virtual image file!\n")
return -1;
}
if(offset+size>virt_image_size) {
LOG_DEBUG("Attempt to write past EOF of virtual image file\n")
size=virt_image_size-offset;
}
to_write=size;
// 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.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
case VirtImageType_VMDK:
case VirtImageType_VMDKS:
break;
case VirtImageType_VDI:
if(file_offset<glob_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_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_p_cache_blkidx[cur_block].Assigned==1) {
// Block was already cached
// Seek to data offset in cache file
if(fseeko(glob_p_cache_file,
glob_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_p_cache_blkidx[cur_block].off_data+block_offset)
return -1;
}
if(fwrite(p_write_buf,to_write_now,1,glob_p_cache_file)!=1) {
LOG_ERROR("Error while writing %zu bytes "
"to cache file at offset %" PRIu64 "!\n",
to_write_now,
glob_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_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_p_cache_file,0,SEEK_END);
glob_p_cache_blkidx[cur_block].off_data=ftello(glob_p_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))
if(GetMorphedImageData(p_buf2,
file_offset-block_offset,
block_offset)!=block_offset)
{
LOG_ERROR("Couldn't read data from morphed image!\n")
return -1;
}
if(fwrite(p_buf2,block_offset,1,glob_p_cache_file)!=1) {
LOG_ERROR("Couldn't writing %" PRIu64 " bytes "
"to cache file at offset %" PRIu64 "!\n",
block_offset,
glob_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_p_cache_file)!=1) {
LOG_ERROR("Error while writing %zd bytes "
"to cache file at offset %" PRIu64 "!\n",
to_write_now,
glob_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
if(GetMorphedImageData(p_buf2,
file_offset+to_write_now,
orig_image_size-(file_offset+to_write_now))!=
orig_image_size-(file_offset+to_write_now))
{
LOG_ERROR("Couldn't read data from virtual image file!\n")
return -1;
}
} else {
if(GetMorphedImageData(p_buf2,
file_offset+to_write_now,
CACHE_BLOCK_SIZE-(block_offset+to_write_now))!=
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_p_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_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_p_cache_file);
#ifndef __APPLE__
ioctl(fileno(glob_p_cache_file),BLKFLSBUF,0);
#endif
glob_p_cache_blkidx[cur_block].Assigned=1;
// Update cache block index entry in cache file
fseeko(glob_p_cache_file,
sizeof(ts_CacheFileHeader)+
(cur_block*sizeof(ts_CacheFileBlockIndex)),
SEEK_SET);
if(fwrite(&(glob_p_cache_blkidx[cur_block]),
sizeof(ts_CacheFileBlockIndex),
1,
glob_p_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_p_cache_blkidx[cur_block].off_data);
}
// Flush buffers
fflush(glob_p_cache_file);
#ifndef __APPLE__
ioctl(fileno(glob_p_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.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;
XMOUNT_MALLOC(p_buf,char*,HASH_AMOUNT*sizeof(char))
size_t read_data=GetMorphedImageData(p_buf,0,HASH_AMOUNT);
if(read_data>0) {
// 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;
} else {
LOG_ERROR("Couldn't read data from morphed image file!\n")
free(p_buf);
return FALSE;
}
}
//! 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_p_vdi_block_map_size=block_entries*sizeof(uint32_t);
LOG_DEBUG("BlockMap: %d (%08X) entries, %d (%08X) bytes!\n",
block_entries,
block_entries,
glob_p_vdi_block_map_size,
glob_p_vdi_block_map_size)
// Allocate memory for vdi header and block map
glob_vdi_header_size=sizeof(ts_VdiFileHeader)+glob_p_vdi_block_map_size;
XMOUNT_MALLOC(glob_p_vdi_header,pts_VdiFileHeader,glob_vdi_header_size)
memset(glob_p_vdi_header,0,glob_vdi_header_size);
glob_p_vdi_block_map=((void*)glob_p_vdi_header)+sizeof(ts_VdiFileHeader);
// Init header values
strncpy(glob_p_vdi_header->szFileInfo,VDI_FILE_COMMENT,
strlen(VDI_FILE_COMMENT)+1);
glob_p_vdi_header->u32Signature=VDI_IMAGE_SIGNATURE;
glob_p_vdi_header->u32Version=VDI_IMAGE_VERSION;
// No idea what the following value is for! Testimage had same value
glob_p_vdi_header->cbHeader=0x00000180;
glob_p_vdi_header->u32Type=VDI_IMAGE_TYPE_FIXED;
glob_p_vdi_header->fFlags=VDI_IMAGE_FLAGS;
strncpy(glob_p_vdi_header->szComment,VDI_HEADER_COMMENT,
strlen(VDI_HEADER_COMMENT)+1);
glob_p_vdi_header->offData=glob_vdi_header_size;
glob_p_vdi_header->offBlocks=sizeof(ts_VdiFileHeader);
glob_p_vdi_header->cCylinders=0; // Legacy info
glob_p_vdi_header->cHeads=0; // Legacy info
glob_p_vdi_header->cSectors=0; // Legacy info
glob_p_vdi_header->cbSector=512; // Legacy info
glob_p_vdi_header->u32Dummy=0;
glob_p_vdi_header->cbDisk=image_size;
// Seems as VBox is always using a 1MB blocksize
glob_p_vdi_header->cbBlock=VDI_IMAGE_BLOCK_SIZE;
glob_p_vdi_header->cbBlockExtra=0;
glob_p_vdi_header->cBlocks=block_entries;
glob_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_p_vdi_header->uuidCreate_l=glob_xmount.input_hash_lo;
glob_p_vdi_header->uuidCreate_h=glob_xmount.input_hash_hi;
#define rand64(var) { \
*((uint32_t*)&(var))=rand(); \
*(((uint32_t*)&(var))+1)=rand(); \
}
rand64(glob_p_vdi_header->uuidModify_l);
rand64(glob_p_vdi_header->uuidModify_h);
#undef rand64
// Generate block map
i=0;
for(offset=0;offset<glob_p_vdi_block_map_size;offset+=4) {
*((uint32_t*)(glob_p_vdi_block_map+offset))=i;
i++;
}
LOG_DEBUG("VDI header size = %u\n",glob_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_p_vhd_header,pts_VhdFileHeader,sizeof(ts_VhdFileHeader))
memset(glob_p_vhd_header,0,sizeof(ts_VhdFileHeader));
// Init header values
glob_p_vhd_header->cookie=VHD_IMAGE_HVAL_COOKIE;
glob_p_vhd_header->features=VHD_IMAGE_HVAL_FEATURES;
glob_p_vhd_header->file_format_version=VHD_IMAGE_HVAL_FILE_FORMAT_VERSION;
glob_p_vhd_header->data_offset=VHD_IMAGE_HVAL_DATA_OFFSET;
glob_p_vhd_header->creation_time=htobe32(time(NULL)-
VHD_IMAGE_TIME_CONVERSION_OFFSET);
glob_p_vhd_header->creator_app=VHD_IMAGE_HVAL_CREATOR_APPLICATION;
glob_p_vhd_header->creator_ver=VHD_IMAGE_HVAL_CREATOR_VERSION;
glob_p_vhd_header->creator_os=VHD_IMAGE_HVAL_CREATOR_HOST_OS;
glob_p_vhd_header->size_original=htobe64(orig_image_size);
glob_p_vhd_header->size_current=glob_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_p_vhd_header->disk_geometry_c=htobe16(geom_c);
glob_p_vhd_header->disk_geometry_h=geom_h;
glob_p_vhd_header->disk_geometry_s=geom_s;
glob_p_vhd_header->disk_type=VHD_IMAGE_HVAL_DISK_TYPE;
glob_p_vhd_header->uuid_l=glob_xmount.input_hash_lo;
glob_p_vhd_header->uuid_h=glob_xmount.input_hash_hi;
glob_p_vhd_header->saved_state=0x00;
// Calculate footer checksum
for(i=0;i<sizeof(ts_VhdFileHeader);i++) {
checksum+=*((uint8_t*)(glob_p_vhd_header)+i);
}
glob_p_vhd_header->checksum=htobe32(~checksum);
LOG_DEBUG("VHD header size = %u\n",sizeof(ts_VhdFileHeader));
return TRUE;
}
//! Init the virtual VMDK 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.VirtImageType==VirtImageType_VMDK) {
// VMDK with IDE bus
sprintf(buf,
VMDK_DESC_FILE,
image_blocks,
(glob_xmount.p_virtual_image_path)+1,
"ide");
} else if(glob_xmount.VirtImageType==VirtImageType_VMDKS){
// VMDK with SCSI bus
sprintf(buf,
VMDK_DESC_FILE,
image_blocks,
(glob_xmount.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_p_vmdk_file,char*,strlen(buf))
strncpy(glob_p_vmdk_file,buf,strlen(buf));
glob_vmdk_file_size=strlen(buf);
return TRUE;
}
//! Create virtual image info file
/*!
* \return TRUE on success, FALSE on error
*/
static int InitVirtImageInfoFile() {
//int ret;
//char *p_buf;
// Add static header
XMOUNT_MALLOC(glob_p_info_file,char*,strlen(IMAGE_INFO_HEADER)+1)
strncpy(glob_p_info_file,IMAGE_INFO_HEADER,strlen(IMAGE_INFO_HEADER)+1);
// Get infos from input lib
// TODO
/*
ret=glob_p_input_functions->GetInfofileContent(glob_p_input_image,&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get info file content: %s!\n",
glob_p_input_functions->GetErrorMessage(ret));
return FALSE;
}
// Add infos to main buffer and free p_buf
XMOUNT_STRAPP(glob_p_info_file,p_buf);
glob_p_input_functions->FreeBuffer(p_buf);
*/
return TRUE;
}
//! Create / load cache file to enable virtual write support
/*!
* \return TRUE on success, FALSE on error
*/
static int InitCacheFile() {
uint64_t image_size=0;
uint64_t blockindex_size=0;
uint64_t cachefile_header_size=0;
uint64_t cachefile_size=0;
uint32_t needed_blocks=0;
uint64_t buf;
if(!glob_xmount.overwrite_cache) {
// Try to open an existing cache file or create a new one
glob_p_cache_file=(FILE*)FOPEN(glob_xmount.p_cache_file,"rb+");
if(glob_p_cache_file==NULL) {
// As the c lib seems to have no possibility to open a file rw wether it
// exists or not (w+ does not work because it truncates an existing file),
// when r+ returns NULL the file could simply not exist
LOG_DEBUG("Cache file does not exist. Creating new one\n")
glob_p_cache_file=(FILE*)FOPEN(glob_xmount.p_cache_file,"wb+");
if(glob_p_cache_file==NULL) {
// There is really a problem opening the file
LOG_ERROR("Couldn't open cache file \"%s\"!\n",
glob_xmount.p_cache_file)
return FALSE;
}
}
} else {
// Overwrite existing cache file or create a new one
glob_p_cache_file=(FILE*)FOPEN(glob_xmount.p_cache_file,"wb+");
if(glob_p_cache_file==NULL) {
LOG_ERROR("Couldn't open cache file \"%s\"!\n",
glob_xmount.p_cache_file)
return FALSE;
}
}
// Get input image size
if(!GetMorphedImageSize(&image_size)) {
LOG_ERROR("Couldn't get morphed image size!\n")
return FALSE;
}
// Calculate how many blocks are needed and how big the buffers must be
// for the actual cache file version
needed_blocks=image_size/CACHE_BLOCK_SIZE;
if((image_size%CACHE_BLOCK_SIZE)!=0) needed_blocks++;
blockindex_size=needed_blocks*sizeof(ts_CacheFileBlockIndex);
cachefile_header_size=sizeof(ts_CacheFileHeader)+blockindex_size;
LOG_DEBUG("Cache blocks: %u (%04X) entries, %zd (%08zX) bytes\n",
needed_blocks,
needed_blocks,
blockindex_size,
blockindex_size)
// Get cache file size
// fseeko64 had massive problems!
if(fseeko(glob_p_cache_file,0,SEEK_END)!=0) {
LOG_ERROR("Couldn't seek to end of cache file!\n")
return FALSE;
}
// Same here, ftello64 didn't work at all and returned 0 all the times
cachefile_size=ftello(glob_p_cache_file);
LOG_DEBUG("Cache file has %zd bytes\n",cachefile_size)
if(cachefile_size>0) {
// Cache file isn't empty, parse block header
LOG_DEBUG("Cache file not empty. Parsing block header\n")
if(fseeko(glob_p_cache_file,0,SEEK_SET)!=0) {
LOG_ERROR("Couldn't seek to beginning of cache file!\n")
return FALSE;
}
// Read and check file signature
if(fread(&buf,8,1,glob_p_cache_file)!=1 || buf!=CACHE_FILE_SIGNATURE) {
free(glob_p_cache_header);
LOG_ERROR("Not an xmount cache file or cache file corrupt!\n")
return FALSE;
}
// Now get cache file version (Has only 32bit!)
if(fread(&buf,4,1,glob_p_cache_file)!=1) {
free(glob_p_cache_header);
LOG_ERROR("Not an xmount cache file or cache file corrupt!\n")
return FALSE;
}
switch((uint32_t)buf) {
case 0x00000001:
// Old v1 cache file.
LOG_ERROR("Unsupported cache file version!\n")
LOG_ERROR("Please use xmount-tool to upgrade your cache file.\n")
return FALSE;
case CUR_CACHE_FILE_VERSION:
// Current version
if(fseeko(glob_p_cache_file,0,SEEK_SET)!=0) {
LOG_ERROR("Couldn't seek to beginning of cache file!\n")
return FALSE;
}
// Alloc memory for header and block index
XMOUNT_MALLOC(glob_p_cache_header,
pts_CacheFileHeader,
cachefile_header_size);
memset(glob_p_cache_header,0,cachefile_header_size);
// Read header and block index from file
if(fread(glob_p_cache_header,
cachefile_header_size,
1,
glob_p_cache_file)!=1)
{
// Cache file isn't big enough
free(glob_p_cache_header);
LOG_ERROR("Cache file corrupt!\n")
return FALSE;
}
break;
default:
LOG_ERROR("Unknown cache file version!\n")
return FALSE;
}
// Check if cache file has same block size as we do
if(glob_p_cache_header->BlockSize!=CACHE_BLOCK_SIZE) {
LOG_ERROR("Cache file does not use default cache block size!\n")
return FALSE;
}
// Set pointer to block index
glob_p_cache_blkidx=(pts_CacheFileBlockIndex)((void*)glob_p_cache_header+
glob_p_cache_header->pBlockIndex);
} else {
// New cache file, generate a new block header
LOG_DEBUG("Cache file is empty. Generating new block header\n");
// Alloc memory for header and block index
XMOUNT_MALLOC(glob_p_cache_header,pts_CacheFileHeader,cachefile_header_size)
memset(glob_p_cache_header,0,cachefile_header_size);
glob_p_cache_header->FileSignature=CACHE_FILE_SIGNATURE;
glob_p_cache_header->CacheFileVersion=CUR_CACHE_FILE_VERSION;
glob_p_cache_header->BlockSize=CACHE_BLOCK_SIZE;
glob_p_cache_header->BlockCount=needed_blocks;
//glob_p_cache_header->UsedBlocks=0;
// The following pointer is only usuable when reading data from cache file
glob_p_cache_header->pBlockIndex=sizeof(ts_CacheFileHeader);
glob_p_cache_blkidx=(pts_CacheFileBlockIndex)((void*)glob_p_cache_header+
sizeof(ts_CacheFileHeader));
glob_p_cache_header->VdiFileHeaderCached=FALSE;
glob_p_cache_header->pVdiFileHeader=0;
glob_p_cache_header->VmdkFileCached=FALSE;
glob_p_cache_header->VmdkFileSize=0;
glob_p_cache_header->pVmdkFile=0;
glob_p_cache_header->VhdFileHeaderCached=FALSE;
glob_p_cache_header->pVhdFileHeader=0;
// Write header to file
if(fwrite(glob_p_cache_header,
cachefile_header_size,
1,
glob_p_cache_file)!=1)
{
free(glob_p_cache_header);
LOG_ERROR("Couldn't write cache file header to file!\n");
return FALSE;
}
}
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;
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;
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 memmory!\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_pp_input_libs,
pts_InputLib*,
sizeof(pts_InputLib)*(glob_input_libs_count+1));
glob_pp_input_libs[glob_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_morph_types,
+ XMOUNT_MALLOC(p_morphing_lib->p_supported_morphing_types,
char*,
supported_formats_len);
- memcpy(p_morphing_lib->p_supported_morph_types,
+ 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));
/*
// TODO
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_pp_morphing_libs,
pts_MorphingLib*,
sizeof(pts_MorphingLib)*(glob_input_libs_count+1));
glob_pp_morphing_libs[glob_morphing_libs_count++]=p_morphing_lib;
LOG_DEBUG("Morphing 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 and %u morphing libs were loaded.\n",
glob_morphing_libs_count,
glob_input_libs_count);
free(p_library_path);
closedir(p_dir);
return ((glob_input_libs_count>0 &&
glob_morphing_libs_count>0) ? TRUE : FALSE);
}
//! Unload input libs
/*!
* \return TRUE on success, FALSE on error
*/
static void UnloadInputLibs() {
LOG_DEBUG("Unloading all input libs.\n");
for(uint32_t i=0;i<glob_input_libs_count;i++) {
free(glob_pp_input_libs[i]->p_name);
dlclose(glob_pp_input_libs[i]->p_lib);
free(glob_pp_input_libs[i]->p_supported_input_types);
free(glob_pp_input_libs[i]);
}
free(glob_pp_input_libs);
glob_pp_input_libs=NULL;
glob_input_libs_count=0;
}
//! 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_input_libs_count;i++) {
LOG_DEBUG("Checking input library %s\n",glob_pp_input_libs[i]->p_name);
p_buf=glob_pp_input_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_pp_input_libs[i]->p_name);
p_input_image->p_functions=&(glob_pp_input_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.p_morph_type);
// Loop over all loaded libs
for(uint32_t i=0;i<glob_morphing_libs_count;i++) {
LOG_DEBUG("Checking morphing library %s\n",
glob_pp_morphing_libs[i]->p_name);
- p_buf=glob_pp_morphing_libs[i]->p_supported_morph_types;
+ p_buf=glob_pp_morphing_libs[i]->p_supported_morphing_types;
while(*p_buf!='\0') {
if(strcmp(p_buf,glob_xmount.p_morph_type)==0) {
// Library supports morph type, set lib functions
LOG_DEBUG("Morphing library '%s' pretends to handle that morph type.\n",
glob_pp_morphing_libs[i]->p_name);
glob_p_morphing_functions=&(glob_pp_morphing_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;
}
/*******************************************************************************
* 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.p_virtual_image_path)==0) {
// Attributes of virtual image
if(!glob_xmount.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))) {
LOG_ERROR("Couldn't get image size!\n");
return -ENOENT;
}
if(glob_xmount.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++;
}
} else if(strcmp(p_path,glob_xmount.p_virtual_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_p_info_file!=NULL) {
p_stat->st_size=strlen(glob_p_info_file);
} else p_stat->st_size=0;
} else if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
// Some special files only present when emulating VMDK files
if(strcmp(p_path,glob_xmount.p_virtual_vmdk_path)==0) {
// Attributes of virtual vmdk file
if(!glob_xmount.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_p_vmdk_file!=NULL) {
p_stat->st_size=glob_vmdk_file_size;
} else p_stat->st_size=0;
} else if(glob_p_vmdk_lockdir1!=NULL &&
strcmp(p_path,glob_p_vmdk_lockdir1)==0)
{
p_stat->st_mode=S_IFDIR | 0777;
p_stat->st_nlink=2;
} else if(glob_p_vmdk_lockdir2!=NULL &&
strcmp(p_path,glob_p_vmdk_lockdir2)==0)
{
p_stat->st_mode=S_IFDIR | 0777;
p_stat->st_nlink=2;
} else if(glob_p_vmdk_lockfile_name!=NULL &&
strcmp(p_path,glob_p_vmdk_lockfile_name)==0)
{
p_stat->st_mode=S_IFREG | 0666;
if(glob_p_vmdk_lockfile_name!=NULL) {
p_stat->st_size=strlen(glob_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.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
if(glob_p_vmdk_lockdir1==NULL) {
char aVmdkLockDir[strlen(glob_xmount.p_virtual_vmdk_path)+5];
sprintf(aVmdkLockDir,"%s.lck",glob_xmount.p_virtual_vmdk_path);
if(strcmp(p_path,aVmdkLockDir)==0) {
LOG_DEBUG("Creating virtual directory \"%s\"\n",aVmdkLockDir)
XMOUNT_STRSET(glob_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_p_vmdk_lockdir2==NULL &&
strncmp(p_path,
glob_p_vmdk_lockdir1,
strlen(glob_p_vmdk_lockdir1))==0)
{
LOG_DEBUG("Creating virtual directory \"%s\"\n",p_path)
XMOUNT_STRSET(glob_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_p_vmdk_lockdir1),
glob_p_vmdk_lockdir1)
return -1;
}
}
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.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS) &&
glob_p_vmdk_lockdir1!=NULL && glob_p_vmdk_lockfile_name==NULL)
{
LOG_DEBUG("Creating virtual file \"%s\"\n",p_path)
XMOUNT_STRSET(glob_p_vmdk_lockfile_name,p_path);
return 0;
} else {
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.p_virtual_image_path+1,NULL,0);
filler(p_buf,glob_xmount.p_virtual_info_path+1,NULL,0);
if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
// For VMDK's, we use an additional descriptor file
filler(p_buf,glob_xmount.p_virtual_vmdk_path+1,NULL,0);
// And there could also be a lock directory
if(glob_p_vmdk_lockdir1!=NULL) {
filler(p_buf,glob_p_vmdk_lockdir1+1,NULL,0);
}
}
} else if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
// For VMDK emulation, there could be a lock directory
if(glob_p_vmdk_lockdir1!=NULL && strcmp(p_path,glob_p_vmdk_lockdir1)==0) {
filler(p_buf,".",NULL,0);
filler(p_buf,"..",NULL,0);
if(glob_p_vmdk_lockfile_name!=NULL) {
filler(p_buf,
glob_p_vmdk_lockfile_name+strlen(glob_p_vmdk_lockdir1)+1,
NULL,
0);
}
} else if(glob_p_vmdk_lockdir2!=NULL &&
strcmp(p_path,glob_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.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.p_virtual_image_path)==0 ||
strcmp(p_path,glob_xmount.p_virtual_info_path)==0)
{
CHECK_OPEN_PERMS();
} else if(glob_xmount.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
if(strcmp(p_path,glob_xmount.p_virtual_vmdk_path)==0 ||
(glob_p_vmdk_lockfile_name!=NULL &&
strcmp(p_path,glob_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.p_virtual_image_path)==0) {
// Read data from virtual output file
// Wait for other threads to end reading/writing data
pthread_mutex_lock(&glob_mutex_image_rw);
// Get requested data
if((ret=GetVirtImageData(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_mutex_image_rw);
} else if(strcmp(p_path,glob_xmount.p_virtual_info_path)==0) {
// Read data from virtual info file
READ_MEM_FILE(glob_p_info_file,
strlen(glob_p_info_file),
"info",
glob_mutex_info_read);
} else if(strcmp(p_path,glob_xmount.p_virtual_vmdk_path)==0) {
// Read data from virtual vmdk file
READ_MEM_FILE(glob_p_vmdk_file,
glob_vmdk_file_size,
"vmdk",
glob_mutex_image_rw);
} else if(glob_p_vmdk_lockfile_name!=NULL &&
strcmp(p_path,glob_p_vmdk_lockfile_name)==0)
{
// Read data from virtual lock file
READ_MEM_FILE(glob_p_vmdk_lockfile_data,
glob_vmdk_lockfile_size,
"vmdk lock",
glob_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
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.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
if(glob_p_vmdk_lockfile_name!=NULL &&
strcmp(p_path,glob_p_vmdk_lockfile_name)==0)
{
LOG_DEBUG("Renaming virtual lock file from \"%s\" to \"%s\"\n",
glob_p_vmdk_lockfile_name,
p_npath)
XMOUNT_REALLOC(glob_p_vmdk_lockfile_name,char*,
(strlen(p_npath)+1)*sizeof(char));
strcpy(glob_p_vmdk_lockfile_name,p_npath);
return 0;
}
}
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.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
if(glob_p_vmdk_lockdir1!=NULL && strcmp(p_path,glob_p_vmdk_lockdir1)==0) {
LOG_DEBUG("Deleting virtual lock dir \"%s\"\n",glob_p_vmdk_lockdir1)
free(glob_p_vmdk_lockdir1);
glob_p_vmdk_lockdir1=NULL;
return 0;
} else if(glob_p_vmdk_lockdir2!=NULL &&
strcmp(p_path,glob_p_vmdk_lockdir2)==0)
{
LOG_DEBUG("Deleting virtual lock dir \"%s\"\n",glob_p_vmdk_lockdir1)
free(glob_p_vmdk_lockdir2);
glob_p_vmdk_lockdir2=NULL;
return 0;
}
}
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.VirtImageType==VirtImageType_VMDK ||
glob_xmount.VirtImageType==VirtImageType_VMDKS)
{
if(glob_p_vmdk_lockfile_name!=NULL &&
strcmp(p_path,glob_p_vmdk_lockfile_name)==0)
{
LOG_DEBUG("Deleting virtual file \"%s\"\n",glob_p_vmdk_lockfile_name)
free(glob_p_vmdk_lockfile_name);
free(glob_p_vmdk_lockfile_data);
glob_p_vmdk_lockfile_name=NULL;
glob_p_vmdk_lockfile_data=NULL;
glob_vmdk_lockfile_size=0;
return 0;
}
}
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.p_virtual_image_path)==0) {
// Wait for other threads to end reading/writing data
pthread_mutex_lock(&glob_mutex_image_rw);
// Get virtual image file size
if(!GetVirtImageSize(&len)) {
LOG_ERROR("Couldn't get virtual image size!\n")
pthread_mutex_unlock(&glob_mutex_image_rw);
return 0;
}
if(offset<len) {
if(offset+size>len) size=len-offset;
if(SetVirtImageData(p_buf,offset,size)!=size) {
LOG_ERROR("Couldn't write data to virtual image file!\n")
pthread_mutex_unlock(&glob_mutex_image_rw);
return 0;
}
} else {
LOG_DEBUG("Attempt to write past EOF of virtual image file\n")
pthread_mutex_unlock(&glob_mutex_image_rw);
return 0;
}
// Allow other threads to read/write data again
pthread_mutex_unlock(&glob_mutex_image_rw);
} else if(strcmp(p_path,glob_xmount.p_virtual_vmdk_path)==0) {
pthread_mutex_lock(&glob_mutex_image_rw);
len=glob_vmdk_file_size;
if((offset+size)>len) {
// Enlarge or create buffer if needed
if(len==0) {
len=offset+size;
XMOUNT_MALLOC(glob_p_vmdk_file,char*,len*sizeof(char))
} else {
len=offset+size;
XMOUNT_REALLOC(glob_p_vmdk_file,char*,len*sizeof(char))
}
glob_vmdk_file_size=offset+size;
}
// Copy data to buffer
memcpy(glob_p_vmdk_file+offset,p_buf,size);
pthread_mutex_unlock(&glob_mutex_image_rw);
} else if(glob_p_vmdk_lockfile_name!=NULL &&
strcmp(p_path,glob_p_vmdk_lockfile_name)==0)
{
pthread_mutex_lock(&glob_mutex_image_rw);
if((offset+size)>glob_vmdk_lockfile_size) {
// Enlarge or create buffer if needed
if(glob_vmdk_lockfile_size==0) {
glob_vmdk_lockfile_size=offset+size;
XMOUNT_MALLOC(glob_p_vmdk_lockfile_data,char*,
glob_vmdk_lockfile_size*sizeof(char))
} else {
glob_vmdk_lockfile_size=offset+size;
XMOUNT_REALLOC(glob_p_vmdk_lockfile_data,char*,
glob_vmdk_lockfile_size*sizeof(char))
}
}
// Copy data to buffer
memcpy(glob_p_vmdk_lockfile_data+offset,p_buf,size);
pthread_mutex_unlock(&glob_mutex_image_rw);
} else if(strcmp(p_path,glob_xmount.p_virtual_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[]) {
int nargc=0;
char **pp_nargv=NULL;
char *p_mountpoint=NULL;
struct stat file_stat;
int ret;
int fuse_ret;
char *p_err_msg;
+ pts_LibXmountMorphingInputImage p_morphing_input_image;
// 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
glob_xmount.input_images_count=0;
glob_xmount.pp_input_images=NULL;
#ifndef __APPLE__
glob_xmount.VirtImageType=VirtImageType_DD;
#else
glob_xmount.VirtImageType=VirtImageType_DMG;
#endif
glob_xmount.debug=FALSE;
glob_xmount.p_virtual_image_path=NULL;
glob_xmount.p_virtual_vmdk_path=NULL;
glob_xmount.p_virtual_info_path=NULL;
glob_xmount.writable=FALSE;
glob_xmount.overwrite_cache=FALSE;
glob_xmount.p_cache_file=NULL;
glob_xmount.orig_image_size=0;
glob_xmount.virt_image_size=0;
glob_xmount.input_hash_lo=0;
glob_xmount.input_hash_hi=0;
glob_xmount.orig_img_offset=0;
glob_xmount.p_lib_params=NULL;
glob_xmount.may_set_fuse_allow_other=FALSE;
+ glob_xmount.p_morph_type=NULL;
// 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,
&nargc,
&pp_nargv,
&p_mountpoint))
{
PrintUsage(argv[0]);
UnloadInputLibs();
if(glob_xmount.pp_input_images!=NULL) {
for(uint64_t i=0;i<glob_xmount.input_images_count;i++) {
free(glob_xmount.pp_input_images[i]->p_type);
for(uint64_t ii=0;
ii<glob_xmount.pp_input_images[i]->files_count;
ii++)
{
free(glob_xmount.pp_input_images[i]->pp_files[ii]);
}
// There will always be files if struct was added to pp_input_images,
// so no need to check for NULL here
free(glob_xmount.pp_input_images[i]->pp_files);
free(glob_xmount.pp_input_images[i]);
}
free(glob_xmount.pp_input_images);
}
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]);
UnloadInputLibs();
return 1;
}
if(nargc<2) {
LOG_ERROR("Couldn't parse command line options!\n")
PrintUsage(argv[0]);
UnloadInputLibs();
return 1;
}
+ if(glob_xmount.p_morph_type==NULL) {
+ XMOUNT_STRSET(glob_xmount.p_morph_type,"combine");
+ }
// Check if mountpoint is a valid dir
if(stat(p_mountpoint,&file_stat)!=0) {
LOG_ERROR("Unable to stat mount point '%s'!\n",p_mountpoint);
PrintUsage(argv[0]);
UnloadInputLibs();
return 1;
}
if(!S_ISDIR(file_stat.st_mode)) {
LOG_ERROR("Mount point '%s' is not a directory!\n",p_mountpoint);
PrintUsage(argv[0]);
UnloadInputLibs();
return 1;
}
if(glob_xmount.debug==TRUE) {
LOG_DEBUG("Options passed to FUSE: ")
for(int i=0;i<nargc;i++) { printf("%s ",pp_nargv[i]); }
printf("\n");
}
// Load input images
for(uint64_t i=0;i<glob_xmount.input_images_count;i++) {
if(glob_xmount.debug==TRUE) {
if(glob_xmount.pp_input_images[i]->files_count==1) {
LOG_DEBUG("Loading image file \"%s\"...\n",
glob_xmount.pp_input_images[i]->pp_files[0])
} else {
LOG_DEBUG("Loading image files \"%s .. %s\"...\n",
glob_xmount.pp_input_images[i]->pp_files[0],
glob_xmount.pp_input_images[i]->
pp_files[glob_xmount.pp_input_images[i]->files_count-1])
}
}
// Find input lib
if(!FindInputLib(glob_xmount.pp_input_images[i])) {
LOG_ERROR("Unknown input image type '%s' for input image '%s'!\n",
glob_xmount.pp_input_images[i]->p_type,
glob_xmount.pp_input_images[i]->pp_files[0])
PrintUsage(argv[0]);
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
}
// Init input image handle
ret=glob_xmount.pp_input_images[i]->p_functions->
CreateHandle(&(glob_xmount.pp_input_images[i]->p_handle),
glob_xmount.pp_input_images[i]->p_type);
if(ret!=0) {
LOG_ERROR("Unable to init input handle for input image '%s': %s!\n",
glob_xmount.pp_input_images[i]->pp_files[0],
glob_xmount.pp_input_images[i]->p_functions->
GetErrorMessage(ret));
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
}
// Parse input lib specific options
if(glob_xmount.p_lib_params!=NULL) {
ret=glob_xmount.pp_input_images[i]->p_functions->
OptionsParse(glob_xmount.pp_input_images[i]->p_handle,
glob_xmount.p_lib_params,
&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.pp_input_images[i]->pp_files[0],
glob_xmount.pp_input_images[i]->p_functions->
GetErrorMessage(ret),
p_err_msg);
glob_xmount.pp_input_images[i]->p_functions->FreeBuffer(p_err_msg);
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
} else {
LOG_ERROR("Unable to parse input library specific options for image "
"'%s': %s!\n",
glob_xmount.pp_input_images[i]->pp_files[0],
glob_xmount.pp_input_images[i]->p_functions->
GetErrorMessage(ret));
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
}
}
}
// Open input image
ret=
glob_xmount.pp_input_images[i]->
p_functions->
Open(&glob_xmount.pp_input_images[i]->p_handle,
(const char**)(glob_xmount.pp_input_images[i]->pp_files),
glob_xmount.pp_input_images[i]->files_count);
if(ret!=0) {
LOG_ERROR("Unable to open input image file '%s': %s!\n",
glob_xmount.pp_input_images[i]->pp_files[0],
glob_xmount.pp_input_images[i]->p_functions->
GetErrorMessage(ret));
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
}
// If an offset was specified, determine size of all input images, check it
// against offset and save "corrected" size
if(glob_xmount.orig_img_offset!=0) {
if(GetInputImageSize(glob_xmount.pp_input_images[i],
&(glob_xmount.pp_input_images[i]->size))!=TRUE)
{
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
}
if(glob_xmount.orig_img_offset>
glob_xmount.pp_input_images[i]->size)
{
LOG_ERROR("The specified offset is larger then the size of the input "
"image '%s'! (%" PRIu64 " > %" PRIu64 ")\n",
glob_xmount.pp_input_images[i]->pp_files[0],
glob_xmount.orig_img_offset,
glob_xmount.pp_input_images[i]->size);
// TODO: Free already created handles
UnloadInputLibs();
// TODO: Free glob_xmount members
return 1;
}
glob_xmount.pp_input_images[i]->size-=glob_xmount.orig_img_offset;
}
- // Add GetMorphedImageSize, GetMorphedImageData
-
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.p_morph_type);
// TODO: Free
return 1;
}
- // TODO: Init morphing
-/*
- ret=glob_p_morphing_functions->Morph();
+ // Init morphing
+ ret=glob_p_morphing_functions->CreateHandle(&glob_p_morphing_handle,
+ glob_xmount.p_morph_type);
if(ret!=0) {
-
+ LOG_ERROR("Unable to create morphing handle: %s!\n",
+ glob_p_morphing_functions->GetErrorMessage(ret));
+ // TODO: Free
+ return 1;
+ }
+ glob_pp_morphing_input_images=
+ malloc(glob_xmount.input_images_count*
+ sizeof(pts_LibXmountMorphingInputImage));
+ if(glob_pp_morphing_input_images==NULL) {
+ // TODO: Free
+ return 1;
+ }
+ for(uint64_t i=0;i<glob_xmount.input_images_count;i++) {
+ p_morphing_input_image=malloc(sizeof(ts_LibXmountMorphingInputImage));
+ if(p_morphing_input_image==NULL) {
+ // TODO: Free
+ return 1;
+ }
+ p_morphing_input_image->p_image_handle=glob_xmount.pp_input_images[i];
+ // TODO: Error check
+ GetInputImageSize(glob_xmount.pp_input_images[i]->p_handle,
+ &(p_morphing_input_image->size));
+ p_morphing_input_image->Read=&GetInputImageData_MorphWrapper;
+ glob_pp_morphing_input_images[i]=p_morphing_input_image;
+ }
+ ret=glob_p_morphing_functions->Morph(glob_p_morphing_handle,
+ glob_xmount.input_images_count,
+ glob_pp_morphing_input_images);
+ if(ret!=0) {
+ LOG_ERROR("Unable to start morphing: %s!\n",
+ glob_p_morphing_functions->GetErrorMessage(ret));
+ // TODO: Free
+ return 1;
}
-*/
// Init mutexes
pthread_mutex_init(&glob_mutex_image_rw,NULL);
pthread_mutex_init(&glob_mutex_info_read,NULL);
// Init random generator
srand(time(NULL));
// Calculate partial MD5 hash of input image file
if(CalculateInputImageHash(&(glob_xmount.input_hash_lo),
&(glob_xmount.input_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_hash_lo)))+i));
for(int i=0;i<8;i++)
printf("%02hhx",*(((char*)(&(glob_xmount.input_hash_hi)))+i));
printf("\n");
}
if(!ExtractVirtFileNames(glob_xmount.pp_input_images[0]->pp_files[0])) {
LOG_ERROR("Couldn't extract virtual file names!\n");
UnloadInputLibs();
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")
UnloadInputLibs();
return 1;
}
LOG_DEBUG("Virtual image info file build successfully\n")
// Do some virtual image type specific initialisations
switch(glob_xmount.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")
UnloadInputLibs();
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")
UnloadInputLibs();
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")
UnloadInputLibs();
return 1;
}
break;
}
if(glob_xmount.writable) {
// Init cache file and cache file block index
if(!InitCacheFile()) {
LOG_ERROR("Couldn't initialize cache file!\n")
UnloadInputLibs();
return 1;
}
LOG_DEBUG("Cache file initialized successfully\n")
}
// Call fuse_main to do the fuse magic
fuse_ret=fuse_main(nargc,pp_nargv,&xmount_operations,NULL);
// Destroy mutexes
pthread_mutex_destroy(&glob_mutex_image_rw);
pthread_mutex_destroy(&glob_mutex_info_read);
// TODO: Close input images and destroy handle
/*
for(uint64_t i=0;i<glob_xmount.input_images_count;i++) {
LOG_DEBUG("Closing image file \"%s\"...\n",
glob_xmount.pp_input_images[i]->pp_files[0]);
}
ret=glob_p_input_functions->Close(&glob_p_input_image);
if(ret!=0) {
LOG_ERROR("Unable to close input image file: %s!",
glob_p_input_functions->GetErrorMessage(ret));
}
ret=glob_p_input_functions->DestroyHandle(&glob_p_input_image);
if(ret!=0) {
LOG_ERROR("Unable to destroy input image handle: %s!",
glob_p_input_functions->GetErrorMessage(ret));
}
*/
// Close cache file if write support was enabled
if(glob_xmount.writable) {
fclose(glob_p_cache_file);
free(glob_p_cache_header);
}
// Free allocated memory
// Free info file content
if(glob_p_info_file!=NULL) free(glob_p_info_file);
// Free output image specific data
switch(glob_xmount.VirtImageType) {
case VirtImageType_DD:
case VirtImageType_DMG:
break;
case VirtImageType_VDI:
free(glob_p_vdi_header);
break;
case VirtImageType_VHD:
free(glob_p_vhd_header);
break;
case VirtImageType_VMDK:
case VirtImageType_VMDKS: {
free(glob_p_vmdk_file);
free(glob_xmount.p_virtual_vmdk_path);
if(glob_p_vmdk_lockfile_name!=NULL) free(glob_p_vmdk_lockfile_name);
if(glob_p_vmdk_lockfile_data!=NULL) free(glob_p_vmdk_lockfile_data);
if(glob_p_vmdk_lockdir1!=NULL) free(glob_p_vmdk_lockdir1);
if(glob_p_vmdk_lockdir2!=NULL) free(glob_p_vmdk_lockdir2);
break;
}
}
// Free constructed argv
if(pp_nargv!=NULL) {
for(int i=0;i<nargc;i++) free(pp_nargv[i]);
free(pp_nargv);
}
// Free mountpoint
if(p_mountpoint!=NULL) free(p_mountpoint);
// Free virtual paths
free(glob_xmount.p_virtual_image_path);
free(glob_xmount.p_virtual_info_path);
// Free cachefile path
free(glob_xmount.p_cache_file);
// Unload input libs
UnloadInputLibs();
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.
*/
diff --git a/trunk/src/xmount.h b/trunk/src/xmount.h
index 561fd64..52a3ed3 100755
--- a/trunk/src/xmount.h
+++ b/trunk/src/xmount.h
@@ -1,371 +1,371 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2014 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"
#undef FALSE
#undef TRUE
#define FALSE 0
#define TRUE 1
/*
* Constants
*/
#define IMAGE_INFO_HEADER "The following values have been extracted from " \
"the mounted image file:\n\n"
//! 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;
//! 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;
//! Input image array element
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;
//! 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_morph_types;
+ char *p_supported_morphing_types;
//! Struct containing lib functions
ts_LibXmountMorphingFunctions lib_functions;
} ts_MorphingLib, *pts_MorphingLib;
//! Xmount global runtime data
typedef struct s_XmountData {
//! Input image count
uint64_t input_images_count;
//! Input images
pts_InputImage *pp_input_images;
//! Virtual image type
te_VirtImageType VirtImageType;
//! Enable debug output
uint8_t debug;
//! Path of virtual image file
char *p_virtual_image_path;
//! Path of virtual VMDK file
char *p_virtual_vmdk_path;
//! Path of virtual image info file
char *p_virtual_info_path;
//! Enable virtual write support
uint8_t writable;
//! Overwrite existing cache
uint8_t overwrite_cache;
//! Cache file to save changes to
char *p_cache_file;
//! Size of input image (after morph)
uint64_t orig_image_size;
//! Size of virtual image
uint64_t virt_image_size;
//! MD5 hash of partial input image (lower 64 bit) (after morph)
uint64_t input_hash_lo;
//! MD5 hash of partial input image (higher 64 bit) (after morph)
uint64_t input_hash_hi;
//! Input image offset
uint64_t orig_img_offset;
//! Input lib params
char *p_lib_params;
//! Set if we are allowed to set fuse's allow_other option
uint8_t may_set_fuse_allow_other;
//! Specified morph type
char *p_morph_type;
//! Morph lib params
char **pp_morph_params;
} ts_XmountData;
#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;
#ifdef __LP64__
#define CACHE_BLOCK_FREE 0xFFFFFFFFFFFFFFFF
#else
#define CACHE_BLOCK_FREE 0xFFFFFFFFFFFFFFFFLL
#endif
//! Cache file block index array element
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;
/*
----- 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
*/