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diff --git a/libxmount/libxmount.c b/libxmount/libxmount.c
index 2d7d7c5..2f9b741 100644
--- a/libxmount/libxmount.c
+++ b/libxmount/libxmount.c
@@ -1,126 +1,213 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 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 <config.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <errno.h>
#include <stdarg.h>
+#include <string.h>
#include "libxmount.h"
+#include "../src/macros.h"
-//! 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
+/*
+ * XmountLib_SplitLibParams
*/
+int XmountLib_SplitLibParams(char *p_params,
+ uint32_t *p_ret_opts_count,
+ pts_LibXmountOptions **ppp_ret_opt)
+{
+ pts_LibXmountOptions p_opts=NULL;
+ pts_LibXmountOptions *pp_opts=NULL;
+ uint32_t params_len;
+ uint32_t opts_count=0;
+ uint32_t sep_pos=0;
+ char *p_buf=p_params;
+
+ if(p_params==NULL) return 0;
+
+ // Get params length
+ params_len=strlen(p_params);
+
+ // Return if no params specified
+ if(params_len==0) {
+ *ppp_ret_opt=NULL;
+ p_ret_opts_count=0;
+ return 1;
+ }
+
+ // Split params
+ while(*p_buf!='\0') {
+ XMOUNT_MALLOC(p_opts,pts_LibXmountOptions,sizeof(ts_LibXmountOptions));
+ p_opts->valid=0;
+
+#define FREE_PP_OPTS() { \
+ if(pp_opts!=NULL) { \
+ for(uint32_t i=0;i<opts_count;i++) free(pp_opts[i]); \
+ free(pp_opts); \
+ } \
+}
+
+ // Search next assignment operator
+ sep_pos=0;
+ while(p_buf[sep_pos]!='\0' && p_buf[sep_pos]!='=') sep_pos++;
+ if(sep_pos==0 || p_buf[sep_pos]=='\0') {
+ LOG_ERROR("Library parameter '%s' is missing an assignment operator!\n",
+ p_buf);
+ free(p_opts);
+ FREE_PP_OPTS();
+ return 0;
+ }
+
+ // Save option key
+ XMOUNT_STRNSET(p_opts->p_key,p_buf,sep_pos);
+ p_buf+=(sep_pos+1);
+
+ // Search next separator
+ sep_pos=0;
+ while(p_buf[sep_pos]!='\0' && p_buf[sep_pos]!=',') sep_pos++;
+ if(sep_pos==0) {
+ LOG_ERROR("Library parameter '%s' is not of format key=value!\n",
+ p_opts->p_key);
+ free(p_opts->p_key);
+ free(p_opts);
+ FREE_PP_OPTS();
+ return 0;
+ }
+
+ // Save option value
+ XMOUNT_STRNSET(p_opts->p_value,p_buf,sep_pos);
+ p_buf+=sep_pos;
+
+ LIBXMOUNT_LOG_DEBUG("Extracted library option: '%s' = '%s'\n",
+ p_opts->p_key,
+ p_opts->p_value);
+
+#undef FREE_PP_OPTS
+
+ // Add current option to return array
+ XMOUNT_REALLOC(pp_opts,
+ pts_LibXmountOptions*,
+ sizeof(pts_LibXmountOptions)*(opts_count+1));
+ pp_opts[opts_count++]=p_opts;
+
+ // If we're not at the end of p_params, skip over separator for next run
+ if(*p_buf!='\0') p_buf++;
+ }
+
+ LIBXMOUNT_LOG_DEBUG("Extracted a total of %" PRIu32 " library options\n",
+ opts_count);
+
+ *p_ret_opts_count=opts_count;
+ *ppp_ret_opt=pp_opts;
+ return 1;
+}
+
/*
* LogMessage
*/
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@%u : ",p_msg_type,p_calling_fun,line);
// Print message with variable parameters
va_start(var_list,p_msg);
vprintf(p_msg,var_list);
va_end(var_list);
}
/*
* StrToInt32
*/
int32_t StrToInt32(const char *p_value, int *p_ok) {
long int num;
char *p_tail;
errno=0;
num=strtol(p_value,&p_tail,0);
if(errno==ERANGE || *p_tail!='\0' || num<INT32_MIN || num>INT32_MAX) {
*p_ok=0;
return 0;
}
*p_ok=1;
return (int32_t)num;
}
/*
* StrToUint32
*/
uint32_t StrToUint32(const char *p_value, int *p_ok) {
unsigned long int num;
char *p_tail;
errno=0;
num=strtoul(p_value,&p_tail,0);
if(errno==ERANGE || *p_tail!='\0' || num>UINT32_MAX) {
*p_ok=0;
return 0;
}
*p_ok=1;
return (uint32_t)num;
}
/*
* StrToInt64
*/
int64_t StrToInt64(const char *p_value, int *p_ok) {
long long int num;
char *p_tail;
errno=0;
num=strtoll(p_value,&p_tail,0);
if(errno==ERANGE || *p_tail!='\0' || num<INT64_MIN || num>INT64_MAX) {
*p_ok=0;
return 0;
}
*p_ok=1;
return (int64_t)num;
}
/*
* StrToUint64
*/
uint64_t StrToUint64(const char *p_value, int *p_ok) {
unsigned long long int num;
char *p_tail;
errno=0;
num=strtoull(p_value,&p_tail,0);
if(errno==ERANGE || *p_tail!='\0' || num>UINT64_MAX) {
*p_ok=0;
return 0;
}
*p_ok=1;
return (uint64_t)num;
}
diff --git a/libxmount/libxmount.h b/libxmount/libxmount.h
index beaaaa9..9ad3190 100644
--- a/libxmount/libxmount.h
+++ b/libxmount/libxmount.h
@@ -1,74 +1,94 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 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_H
#define LIBXMOUNT_H
+#include <inttypes.h>
#include "endianness.h"
/*
* Under OSx, fopen handles 64bit I/O too
*/
#ifdef __APPLE__
#define fopen64 fopen
#define fseeko64 fseeko
#endif
/*
* Macros to ease debugging and error reporting
*/
#define LIBXMOUNT_LOG_ERROR(...) { \
LogMessage("ERROR",(char*)__FUNCTION__,__LINE__,__VA_ARGS__); \
}
#define LIBXMOUNT_LOG_WARNING(...) { \
LogMessage("WARNING",(char*)__FUNCTION__,__LINE__,__VA_ARGS__); \
}
#define LIBXMOUNT_LOG_DEBUG(debug,...) { \
if(debug) LogMessage("DEBUG",(char*)__FUNCTION__,__LINE__,__VA_ARGS__); \
}
//! Struct containing lib options
typedef struct s_LibXmountOptions {
//! Option name
char *p_key;
//! Option value
char *p_value;
//! Set to 1 if key/value has been parsed and is valid
uint8_t valid;
} ts_LibXmountOptions, *pts_LibXmountOptions;
-//! Log messages
/*!
- * \param p_msg_type "ERROR", "DEBUG", etc...
+ * \brief Print error and debug messages to stdout
+ *
+ * Function to loag various messages. This function should not be accessed
+ * directly but rather trough the macros LIBXMOUNT_LOG_ERROR,
+ * LIBXMOUNT_LOG_WARNING or LIBXMOUNT_LOG_DEBUG.
+ *
+ * \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
*/
void LogMessage(char *p_msg_type,
char *p_calling_fun,
int line,
char *p_msg,
...);
+/*!
+ * \brief Split given library options
+ *
+ * Splits the given library option string LibXmountOptions elements
+ *
+ * \param p_params Library option string
+ * \param p_ret_opts_count Amount of LibXmountOptions elements returned
+ * \param ppp_ret_opt Array to save the returned LibXmountOptions elements
+ * \return 0 on success
+ */
+int XmountLib_SplitLibParams(char *p_params,
+ uint32_t *p_ret_opts_count,
+ pts_LibXmountOptions **ppp_ret_opt);
+
int32_t StrToInt32(const char *p_value, int *p_ok);
uint32_t StrToUint32(const char *p_value, int *p_ok);
int64_t StrToInt64(const char *p_value, int *p_ok);
uint64_t StrToUint64(const char *p_value, int *p_ok);
#endif // LIBXMOUNT_H
diff --git a/src/xmount.c b/src/xmount.c
index cb55ef9..d5f4459 100755
--- a/src/xmount.c
+++ b/src/xmount.c
@@ -1,2151 +1,2060 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* xmount is a small tool to "fuse mount" various harddisk image formats as dd, *
* vdi, vhd or vmdk files and enable virtual write access to them. *
* *
* This program is free software: you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the Free *
* Software Foundation, either version 3 of the License, or (at your option) *
* any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for *
* more details. *
* *
* You should have received a copy of the GNU General Public License along with *
* this program. If not, see <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <inttypes.h> // For PRI*
#include <errno.h>
#include <dlfcn.h> // For dlopen, dlclose, dlsym
#include <dirent.h> // For opendir, readdir, closedir
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/stat.h> // For fstat
#include <sys/types.h>
#ifdef HAVE_LINUX_FS_H
#include <linux/fs.h> // For SEEK_* ??
#endif
#if !defined(__APPLE__) && defined(HAVE_GRP_H) && defined(HAVE_PWD_H)
#include <grp.h> // For getgrnam, struct group
#include <pwd.h> // For getpwuid, struct passwd
#endif
#include <pthread.h>
#include <time.h> // For time
#include "xmount.h"
#include "xmount_fuse.h"
#include "md5.h"
#include "macros.h"
#include "../libxmount/libxmount.h"
#define XMOUNT_COPYRIGHT_NOTICE \
"xmount v%s Copyright (c) 2008-2016 by Gillen Daniel <gillen.dan@pinguin.lu>"
#define LOG_WARNING(...) { \
LIBXMOUNT_LOG_WARNING(__VA_ARGS__); \
}
#define LOG_ERROR(...) { \
LIBXMOUNT_LOG_ERROR(__VA_ARGS__); \
}
#define LOG_DEBUG(...) { \
LIBXMOUNT_LOG_DEBUG(glob_xmount.debug,__VA_ARGS__); \
}
#define HASH_AMOUNT (1024*1024)*10 // Amount of data used to construct a
// "unique" hash for every input image
// (10MByte)
/*******************************************************************************
* Forward declarations
******************************************************************************/
/*
* Misc
*/
static void InitResources();
static void FreeResources();
static void PrintUsage(char*);
static void CheckFuseSettings();
static int ParseCmdLine(const int, char**);
static int ExtractOutputFileNames(char*);
static int CalculateInputImageHash(uint64_t*, uint64_t*);
/*
* Info file
*/
static int InitInfoFile();
/*
* Lib related
*/
static int LoadLibs();
static int FindInputLib(pts_InputImage);
static int FindMorphingLib();
static int FindOutputLib();
static int SplitLibraryParameters(char*, uint32_t*, pts_LibXmountOptions**);
/*
* Functions exported to LibXmount_Morphing
*/
static int LibXmount_Morphing_ImageCount(uint64_t*);
static int LibXmount_Morphing_Size(uint64_t, uint64_t*);
static int LibXmount_Morphing_Read(uint64_t, char*, off_t, size_t, size_t*);
/*
* Functions exported to LibXmount_Output
*/
static int LibXmount_Output_Size(uint64_t*);
static int LibXmount_Output_Read(char*, off_t, size_t, size_t*);
static int LibXmount_Output_Write(char*, off_t, size_t, size_t*);
/*******************************************************************************
* Helper functions
******************************************************************************/
//! Print usage instructions (cmdline options etc..)
/*!
* \param p_prog_name Program name (argv[0])
*/
static void PrintUsage(char *p_prog_name) {
char *p_buf;
int first;
int ret;
printf("\n" XMOUNT_COPYRIGHT_NOTICE "\n",XMOUNT_VERSION);
printf("\nUsage:\n");
printf(" %s [fopts] <xopts> <mntp>\n\n",p_prog_name);
printf("Options:\n");
printf(" fopts:\n");
printf(" -d : Enable FUSE's and xmount's debug mode.\n");
printf(" -h : Display this help message.\n");
printf(" -s : Run single threaded.\n");
printf(" -o no_allow_other : Disable automatic addition of FUSE's "
"allow_other option.\n");
printf(" -o <fopts> : Specify fuse mount options. Will also disable "
"automatic addition of FUSE's allow_other option!\n");
printf("\n");
printf(" xopts:\n");
printf(" --cache <cfile> : Enable virtual write support.\n");
printf(" <cfile> specifies the cache file to use.\n");
printf(" --in <itype> <ifile> : Input image format and source file(s). "
"May be specified multiple times.\n");
printf(" <itype> can be ");
// List supported input formats
first=1;
if(XmountInput_GetSupportedFormats(glob_xmount.h_input,
&p_buf)==e_XmountInput_Error_None)
{
while(*p_buf!='\0') {
if(first==1) {
printf("\"%s\"",p_buf);
first=0;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
free(p_buf);
}
printf(".\n");
printf(" <ifile> specifies the source file. If your image is split into "
"multiple files, you have to specify them all!\n");
printf(" --inopts <iopts> : Specify input library specific options.\n");
printf(" <iopts> specifies a comma separated list of key=value options. "
"See below for details.\n");
printf(" --info : Print out infos about used compiler and libraries.\n");
printf(" --morph <mtype> : Morphing function to apply to input image(s). "
"If not specified, defaults to \"combine\".\n");
printf(" <mtype> can be ");
// List supported morphing functions
first=1;
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
p_buf=glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types;
while(*p_buf!='\0') {
if(first==1) {
printf("\"%s\"",p_buf);
first=0;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
}
printf(".\n");
printf(" --morphopts <mopts> : Specify morphing library specific "
"options.\n");
printf(" <mopts> specifies a comma separated list of key=value options. "
"See below for details.\n");
printf(" --offset <off> : Move the output image data start <off> bytes "
"into the input image(s).\n");
printf(" --out <otype> : Output image format. If not specified, "
"defaults to ");
#ifdef __APPLE__
printf("\"dmg\".\n");
#else
printf("\"raw\".\n");
#endif
printf(" <otype> can be ");
// List supported output formats
first=1;
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
p_buf=glob_xmount.output.pp_libs[i]->p_supported_output_formats;
while(*p_buf!='\0') {
if(first==1) {
printf("\"%s\"",p_buf);
first=0;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
}
printf(".\n");
printf(" --outopts <oopts> : Specify output library specific "
"options.\n");
printf(" --owcache <file> : Same as --cache <file> but overwrites "
"existing cache file.\n");
printf(" --sizelimit <size> : The data end of input image(s) is set to no "
"more than <size> bytes after the data start.\n");
printf(" --version : Same as --info.\n");
printf("\n");
printf(" mntp:\n");
printf(" Mount point where output image should be located.\n");
printf("\n");
printf("Infos:\n");
printf(" * One --in option and a mount point are mandatory!\n");
printf(" * If you specify --in multiple times, data from all images is "
"morphed into one output image using the specified morphing "
"function.\n");
printf(" * For VMDK emulation, you have to uncomment \"user_allow_other\" "
"in /etc/fuse.conf or run xmount as root.\n");
printf("\n");
printf("Input / Morphing / Output library specific options:\n");
printf(" Input / Morphing libraries might support an own set of "
"options to configure / tune their behaviour.\n");
printf(" Libraries supporting this feature (if any) and their "
"options are listed below.\n");
printf("\n");
// List input, morphing and output lib options
if(XmountInput_GetOptionsHelpText(glob_xmount.h_input,
&p_buf)==e_XmountInput_Error_None)
{
printf("%s",p_buf);
free(p_buf);
}
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
ret=glob_xmount.morphing.pp_libs[i]->
lib_functions.OptionsHelp((const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get options help for library '%s': %s!\n",
glob_xmount.morphing.pp_libs[i]->p_name,
glob_xmount.morphing.pp_libs[i]->
lib_functions.GetErrorMessage(ret));
}
if(p_buf==NULL) continue;
printf(" - %s\n",glob_xmount.morphing.pp_libs[i]->p_name);
printf("%s",p_buf);
printf("\n");
}
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
ret=glob_xmount.output.pp_libs[i]->
lib_functions.OptionsHelp((const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get options help for library '%s': %s!\n",
glob_xmount.output.pp_libs[i]->p_name,
glob_xmount.output.pp_libs[i]->
lib_functions.GetErrorMessage(ret));
}
if(p_buf==NULL) continue;
printf(" - %s\n",glob_xmount.output.pp_libs[i]->p_name);
printf("%s",p_buf);
printf("\n");
}
}
//! Check fuse settings
/*!
* Check if FUSE allows us to pass the -o allow_other parameter. This only works
* if we are root or user_allow_other is set in /etc/fuse.conf.
*
* In addition, this function also checks if the user is member of the fuse
* group which is generally needed to use fuse at all.
*/
static void CheckFuseSettings() {
#if !defined(__APPLE__) && defined(HAVE_GRP_H) && defined(HAVE_PWD_H)
struct group *p_group;
struct passwd *p_passwd;
#endif
int found;
FILE *h_fuse_conf;
char line[256];
glob_xmount.may_set_fuse_allow_other=FALSE;
if(geteuid()==0) {
// Running as root, there should be no problems
glob_xmount.may_set_fuse_allow_other=TRUE;
return;
}
#if !defined(__APPLE__) && defined(HAVE_GRP_H) && defined(HAVE_PWD_H)
// Check if a fuse group exists and if so, make sure user is a member of it.
// Makes only sense on Linux because as far as I know osxfuse has no own group
p_group=getgrnam("fuse");
if(p_group!=NULL) {
// Get effective user name
p_passwd=getpwuid(geteuid());
if(p_passwd==NULL) {
printf("\nWARNING: Unable to determine your effective user name. If "
"mounting works, you can ignore this message.\n\n");
return;
}
// Check if user is member of fuse group
found=FALSE;
while(*(p_group->gr_mem)!=NULL) {
if(strcmp(*(p_group->gr_mem),p_passwd->pw_name)==0) {
found=TRUE;
break;
}
p_group->gr_mem++;
}
if(found==FALSE) {
printf("\nWARNING: You are not a member of the \"fuse\" group. This will "
"prevent you from mounting images using xmount. Please add "
"yourself to the \"fuse\" group using the command "
"\"sudo usermod -a -G fuse %s\" and reboot your system or "
"execute xmount as root.\n\n",
p_passwd->pw_name);
return;
}
} else {
printf("\nWARNING: Your system does not seem to have a \"fuse\" group. If "
"mounting works, you can ignore this message.\n\n");
}
#endif
// Read FUSE's config file /etc/fuse.conf and check for set user_allow_other
h_fuse_conf=(FILE*)FOPEN("/etc/fuse.conf","r");
if(h_fuse_conf!=NULL) {
// Search conf file for set user_allow_others
found=FALSE;
while(fgets(line,sizeof(line),h_fuse_conf)!=NULL) {
// TODO: This works as long as there is no other parameter beginning with
// "user_allow_other" :)
if(strncmp(line,"user_allow_other",16)==0) {
found=TRUE;
break;
}
}
fclose(h_fuse_conf);
if(found==TRUE) {
glob_xmount.may_set_fuse_allow_other=TRUE;
} else {
printf("\nWARNING: FUSE will not allow other users nor root to access "
"your virtual harddisk image. To change this behavior, please "
"add \"user_allow_other\" to /etc/fuse.conf or execute xmount "
"as root.\n\n");
}
} else {
printf("\nWARNING: Unable to open /etc/fuse.conf. If mounting works, you "
"can ignore this message. If you encounter issues, please create "
"the file and add a single line containing the string "
"\"user_allow_other\" or execute xmount as root.\n\n");
return;
}
}
//! Parse command line options
/*!
* \param argc Number of cmdline params
* \param pp_argv Array containing cmdline params
* \return TRUE on success, FALSE on error
*/
static int ParseCmdLine(const int argc, char **pp_argv) {
int i=1;
int FuseMinusOControl=TRUE;
int FuseAllowOther=TRUE;
int first;
uint64_t buf;
char *p_buf;
char **pp_buf;
int ret;
te_XmountInput_Error input_ret=e_XmountInput_Error_None;
// add pp_argv[0] to FUSE's argv
XMOUNT_MALLOC(glob_xmount.pp_fuse_argv,char**,sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[0],pp_argv[0]);
glob_xmount.fuse_argc=1;
// Parse options
while(i<argc && *pp_argv[i]=='-') {
if(strlen(pp_argv[i])>1 && *(pp_argv[i]+1)!='-') {
// Options beginning with one - are mostly FUSE specific
if(strcmp(pp_argv[i],"-d")==0) {
// Enable FUSE's and xmount's debug mode
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
pp_argv[i])
glob_xmount.fuse_argc++;
glob_xmount.debug=TRUE;
} else if(strcmp(pp_argv[i],"-h")==0) {
// Print help message
PrintUsage(pp_argv[0]);
exit(0);
} else if(strcmp(pp_argv[i],"-o")==0) {
// Next parameter specifies fuse mount options
if((i+1)<argc) {
i++;
// As the user specified the -o option, we assume he knows what he is
// doing. We won't append allow_other automatically. And we allow him
// to disable allow_other by passing a single "-o no_allow_other"
// which won't be passed to FUSE as it is xmount specific.
if(strcmp(pp_argv[i],"no_allow_other")!=0) {
glob_xmount.fuse_argc+=2;
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
glob_xmount.fuse_argc*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-2],
pp_argv[i-1]);
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
pp_argv[i]);
FuseMinusOControl=FALSE;
} else FuseAllowOther=FALSE;
} else {
LOG_ERROR("Couldn't parse fuse mount options!\n")
return FALSE;
}
} else if(strcmp(pp_argv[i],"-s")==0) {
// Enable FUSE's single threaded mode
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
pp_argv[i]);
glob_xmount.fuse_argc++;
} else if(strcmp(pp_argv[i],"-V")==0) {
// Display FUSE version info
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
pp_argv[i]);
glob_xmount.fuse_argc++;
} else {
LOG_ERROR("Unknown command line option \"%s\"\n",pp_argv[i]);
return FALSE;
}
} else {
// Options beginning with -- are xmount specific
if(strcmp(pp_argv[i],"--cache")==0 /*|| strcmp(pp_argv[i],"--rw")==0*/) {
// Emulate writable access to mounted image
// Next parameter must be cache file to read/write changes from/to
if((i+1)<argc) {
i++;
XMOUNT_STRSET(glob_xmount.args.p_cache_file,pp_argv[i])
glob_xmount.output.writable=TRUE;
} else {
LOG_ERROR("You must specify a cache file!\n")
return FALSE;
}
LOG_DEBUG("Enabling virtual write support using cache file \"%s\"\n",
glob_xmount.args.p_cache_file)
} else if(strcmp(pp_argv[i],"--in")==0) {
// Input image format and source files
if((i+2)<argc) {
i++;
// Save format
p_buf=pp_argv[i];
// Parse input image filename(s) and save to temporary array
i++;
buf=0;
pp_buf=NULL;
while(i<(argc-1) && strncmp(pp_argv[i],"--",2)!=0) {
buf++;
XMOUNT_REALLOC(pp_buf,char**,buf*sizeof(char*));
pp_buf[buf-1]=pp_argv[i];
i++;
}
i--;
if(buf==0) {
LOG_ERROR("No input files specified for \"--in %s\"!\n",p_buf);
return FALSE;
}
// Add input image
if((input_ret=XmountInput_AddImage(glob_xmount.h_input,
p_buf,
buf,
(const char**)pp_buf)
)!=e_XmountInput_Error_None)
{
LOG_ERROR("Unable to load input image: Error code %u!\n",input_ret);
XMOUNT_FREE(pp_buf);
return FALSE;
}
} else {
LOG_ERROR("You must specify an input image format and source file!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--inopts")==0) {
// Set input lib options
if((i+1)<argc) {
i++;
- if(glob_xmount.input.pp_lib_params==NULL) {
- if(SplitLibraryParameters(pp_argv[i],
- &(glob_xmount.input.lib_params_count),
- &(glob_xmount.input.pp_lib_params)
- )==FALSE)
- {
- LOG_ERROR("Unable to parse input library options '%s'!\n",
- pp_argv[i]);
- return FALSE;
- }
- } else {
- LOG_ERROR("You can only specify --inopts once!")
+ input_ret=XmountInput_SetOptions(glob_xmount.h_input,pp_argv[i]);
+ if(input_ret!=e_XmountInput_Error_None) {
+ LOG_ERROR("Unable to parse input library options: Error code %u!\n",
+ input_ret);
return FALSE;
}
} else {
LOG_ERROR("You must specify special options!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--morph")==0) {
// Set morphing lib to use
if((i+1)<argc) {
i++;
if(glob_xmount.morphing.p_morph_type==NULL) {
XMOUNT_STRSET(glob_xmount.morphing.p_morph_type,pp_argv[i]);
} else {
LOG_ERROR("You can only specify --morph once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify morphing type!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--morphopts")==0) {
// Set morphing lib options
if((i+1)<argc) {
i++;
if(glob_xmount.morphing.pp_lib_params==NULL) {
if(SplitLibraryParameters(pp_argv[i],
&(glob_xmount.morphing.lib_params_count),
&(glob_xmount.morphing.pp_lib_params)
)==FALSE)
{
LOG_ERROR("Unable to parse morphing library options '%s'!\n",
pp_argv[i]);
return FALSE;
}
} else {
LOG_ERROR("You can only specify --morphopts once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify special morphing lib params!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--offset")==0) {
// Set input image offset
if((i+1)<argc) {
i++;
- glob_xmount.input.image_offset=StrToUint64(pp_argv[i],&ret);
+ buf=StrToUint64(pp_argv[i],&ret);
if(ret==0) {
- LOG_ERROR("Unable to convert '%s' to a number!\n",pp_argv[i])
+ LOG_ERROR("Unable to convert '%s' to a number!\n",pp_argv[i]);
+ return FALSE;
+ }
+ input_ret=XmountInput_SetInputOffset(glob_xmount.h_input,buf);
+ if(input_ret!=e_XmountInput_Error_None) {
+ LOG_ERROR("Unable to set input offset: Error code %u!\n",input_ret);
return FALSE;
}
} else {
LOG_ERROR("You must specify an offset!\n")
return FALSE;
}
- LOG_DEBUG("Setting input image offset to \"%" PRIu64 "\"\n",
- glob_xmount.input.image_offset)
} else if(strcmp(pp_argv[i],"--out")==0) {
// Set output lib to use
if((i+1)<argc) {
i++;
if(glob_xmount.output.p_output_format==NULL) {
XMOUNT_STRSET(glob_xmount.output.p_output_format,pp_argv[i]);
} else {
LOG_ERROR("You can only specify --out once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify an output format!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--outopts")==0) {
// Set output lib options
if((i+1)<argc) {
i++;
if(glob_xmount.output.pp_lib_params==NULL) {
if(SplitLibraryParameters(pp_argv[i],
&(glob_xmount.output.lib_params_count),
&(glob_xmount.output.pp_lib_params)
)==FALSE)
{
LOG_ERROR("Unable to parse output library options '%s'!\n",
pp_argv[i]);
return FALSE;
}
} else {
LOG_ERROR("You can only specify --outopts once!")
return FALSE;
}
} else {
LOG_ERROR("You must specify special output lib params!\n");
return FALSE;
}
} else if(strcmp(pp_argv[i],"--owcache")==0) {
// Enable writable access to mounted image and overwrite existing cache
// Next parameter must be cache file to read/write changes from/to
if((i+1)<argc) {
i++;
XMOUNT_STRSET(glob_xmount.args.p_cache_file,pp_argv[i])
glob_xmount.output.writable=TRUE;
glob_xmount.args.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.args.p_cache_file)
} else if(strcmp(pp_argv[i],"--sizelimit")==0) {
// Set input image size limit
if((i+1)<argc) {
i++;
- glob_xmount.input.image_size_limit=StrToUint64(pp_argv[i],&ret);
+ buf=StrToUint64(pp_argv[i],&ret);
if(ret==0) {
- LOG_ERROR("Unable to convert '%s' to a number!\n",pp_argv[i])
+ LOG_ERROR("Unable to convert '%s' to a number!\n",pp_argv[i]);
+ return FALSE;
+ }
+ input_ret=XmountInput_SetInputSizeLimit(glob_xmount.h_input,buf);
+ if(input_ret!=e_XmountInput_Error_None) {
+ LOG_ERROR("Unable to set input size limit: Error code %u!\n",
+ input_ret);
return FALSE;
}
} else {
LOG_ERROR("You must specify a size limit!\n")
return FALSE;
}
- LOG_DEBUG("Setting input image size limit to \"%" PRIu64 "\"\n",
- glob_xmount.input.image_size_limit)
} else if(strcmp(pp_argv[i],"--version")==0 ||
strcmp(pp_argv[i],"--info")==0)
{
// Print xmount info
printf(XMOUNT_COPYRIGHT_NOTICE "\n\n",XMOUNT_VERSION);
#ifdef __GNUC__
printf(" compile timestamp: %s %s\n",__DATE__,__TIME__);
printf(" gcc version: %s\n",__VERSION__);
#endif
printf(" loaded input libraries:\n");
for(uint32_t ii=0;ii<glob_xmount.input.libs_count;ii++) {
printf(" - %s supporting ",glob_xmount.input.pp_libs[ii]->p_name);
p_buf=glob_xmount.input.pp_libs[ii]->p_supported_input_types;
first=TRUE;
while(*p_buf!='\0') {
if(first) {
printf("\"%s\"",p_buf);
first=FALSE;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
printf("\n");
}
printf(" loaded morphing libraries:\n");
for(uint32_t ii=0;ii<glob_xmount.morphing.libs_count;ii++) {
printf(" - %s supporting ",
glob_xmount.morphing.pp_libs[ii]->p_name);
p_buf=glob_xmount.morphing.pp_libs[ii]->p_supported_morphing_types;
first=TRUE;
while(*p_buf!='\0') {
if(first) {
printf("\"%s\"",p_buf);
first=FALSE;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
printf("\n");
}
printf(" loaded output libraries:\n");
for(uint32_t ii=0;ii<glob_xmount.output.libs_count;ii++) {
printf(" - %s supporting ",
glob_xmount.output.pp_libs[ii]->p_name);
p_buf=glob_xmount.output.pp_libs[ii]->p_supported_output_formats;
first=TRUE;
while(*p_buf!='\0') {
if(first) {
printf("\"%s\"",p_buf);
first=FALSE;
} else printf(", \"%s\"",p_buf);
p_buf+=(strlen(p_buf)+1);
}
printf("\n");
}
printf("\n");
exit(0);
} else {
LOG_ERROR("Unknown command line option \"%s\"\n",pp_argv[i]);
return FALSE;
}
}
i++;
}
// Extract mountpoint
if(i==(argc-1)) {
XMOUNT_STRSET(glob_xmount.p_mountpoint,pp_argv[argc-1])
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
(glob_xmount.fuse_argc+1)*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc],
glob_xmount.p_mountpoint);
glob_xmount.fuse_argc++;
} else {
LOG_ERROR("No mountpoint specified!\n")
return FALSE;
}
if(FuseMinusOControl==TRUE) {
// We control the -o flag, set subtype, fsname and allow_other options
glob_xmount.fuse_argc+=2;
XMOUNT_REALLOC(glob_xmount.pp_fuse_argv,
char**,
glob_xmount.fuse_argc*sizeof(char*));
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-2],"-o");
XMOUNT_STRSET(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
"subtype=xmount");
if(glob_xmount.input.images_count!=0) {
// Set name of first source file as fsname
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
",fsname='");
// If possible, use full path
p_buf=realpath(glob_xmount.input.pp_images[0]->pp_files[0],NULL);
if(p_buf==NULL) {
XMOUNT_STRSET(p_buf,glob_xmount.input.pp_images[0]->pp_files[0]);
}
// Make sure fsname does not include some forbidden chars
for(uint32_t i=0;i<strlen(p_buf);i++) {
if(p_buf[i]=='\'') p_buf[i]='_';
}
// Set fsname
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
p_buf);
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
"'");
free(p_buf);
}
if(FuseAllowOther==TRUE) {
// Add "allow_other" option if allowed
if(glob_xmount.may_set_fuse_allow_other) {
XMOUNT_STRAPP(glob_xmount.pp_fuse_argv[glob_xmount.fuse_argc-1],
",allow_other");
}
}
}
return TRUE;
}
//! Extract output file name from input image name
/*!
* \param p_orig_name Name of input image (may include a path)
* \return TRUE on success, FALSE on error
*/
static int ExtractOutputFileNames(char *p_orig_name) {
char *tmp;
// Truncate any leading path
tmp=strrchr(p_orig_name,'/');
if(tmp!=NULL) p_orig_name=tmp+1;
// Extract file extension
tmp=strrchr(p_orig_name,'.');
// Set leading '/'
XMOUNT_STRSET(glob_xmount.output.p_virtual_image_path,"/");
XMOUNT_STRSET(glob_xmount.output.p_info_path,"/");
// Copy filename
if(tmp==NULL) {
// Input image filename has no extension
XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,p_orig_name);
XMOUNT_STRAPP(glob_xmount.output.p_info_path,p_orig_name);
XMOUNT_STRAPP(glob_xmount.output.p_info_path,".info");
} else {
XMOUNT_STRNAPP(glob_xmount.output.p_virtual_image_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp));
XMOUNT_STRNAPP(glob_xmount.output.p_info_path,p_orig_name,
strlen(p_orig_name)-strlen(tmp));
XMOUNT_STRAPP(glob_xmount.output.p_info_path,".info");
}
// Add virtual file extensions
// TODO: Get from output lib and add
//XMOUNT_STRAPP(glob_xmount.output.p_virtual_image_path,".dd");
LOG_DEBUG("Set virtual image name to \"%s\"\n",
glob_xmount.output.p_virtual_image_path);
LOG_DEBUG("Set virtual image info name to \"%s\"\n",
glob_xmount.output.p_info_path);
return TRUE;
}
//! Calculates an MD5 hash of the first HASH_AMOUNT bytes of the input image
/*!
* \param p_hash_low Pointer to the lower 64 bit of the hash
* \param p_hash_high Pointer to the higher 64 bit of the hash
* \return TRUE on success, FALSE on error
*/
static int CalculateInputImageHash(uint64_t *p_hash_low,
uint64_t *p_hash_high)
{
char hash[16];
md5_state_t md5_state;
char *p_buf;
int ret;
size_t read_data;
XMOUNT_MALLOC(p_buf,char*,HASH_AMOUNT*sizeof(char));
ret=ReadMorphedImageData(p_buf,0,HASH_AMOUNT,&read_data);
if(ret!=TRUE || read_data==0) {
LOG_ERROR("Couldn't read data from morphed image file!\n")
free(p_buf);
return FALSE;
}
// Calculate MD5 hash
md5_init(&md5_state);
md5_append(&md5_state,(const md5_byte_t*)p_buf,read_data);
md5_finish(&md5_state,(md5_byte_t*)hash);
// Convert MD5 hash into two 64bit integers
*p_hash_low=*((uint64_t*)hash);
*p_hash_high=*((uint64_t*)(hash+8));
free(p_buf);
return TRUE;
}
//! Create info file
/*!
* \return TRUE on success, FALSE on error
*/
static int InitInfoFile() {
int ret;
char *p_buf;
// Start with static input header
XMOUNT_MALLOC(glob_xmount.output.p_info_file,
char*,
strlen(IMAGE_INFO_INPUT_HEADER)+1);
strncpy(glob_xmount.output.p_info_file,
IMAGE_INFO_INPUT_HEADER,
strlen(IMAGE_INFO_INPUT_HEADER)+1);
// Get and add infos from input lib(s)
for(uint64_t i=0;i<glob_xmount.input.images_count;i++) {
ret=glob_xmount.input.pp_images[i]->p_functions->
GetInfofileContent(glob_xmount.input.pp_images[i]->p_handle,(const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get info file content for image '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
return FALSE;
}
// Add infos to main buffer and free p_buf
XMOUNT_STRAPP(glob_xmount.output.p_info_file,"\n--> ");
XMOUNT_STRAPP(glob_xmount.output.p_info_file,
glob_xmount.input.pp_images[i]->pp_files[0]);
XMOUNT_STRAPP(glob_xmount.output.p_info_file," <--\n");
if(p_buf!=NULL) {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,p_buf);
glob_xmount.input.pp_images[i]->p_functions->FreeBuffer(p_buf);
} else {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,"None\n");
}
}
// Add static morphing header
XMOUNT_STRAPP(glob_xmount.output.p_info_file,IMAGE_INFO_MORPHING_HEADER);
// Get and add infos from morphing lib
ret=glob_xmount.morphing.p_functions->
GetInfofileContent(glob_xmount.morphing.p_handle,(const char**)&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get info file content from morphing lib: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
return FALSE;
}
if(p_buf!=NULL) {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,p_buf);
glob_xmount.morphing.p_functions->FreeBuffer(p_buf);
} else {
XMOUNT_STRAPP(glob_xmount.output.p_info_file,"None\n");
}
return TRUE;
}
//! Load input / morphing libs
/*!
* \return TRUE on success, FALSE on error
*/
static int LoadLibs() {
DIR *p_dir=NULL;
struct dirent *p_dirent=NULL;
int base_library_path_len=0;
char *p_library_path=NULL;
void *p_libxmount=NULL;
t_LibXmount_Input_GetApiVersion pfun_input_GetApiVersion;
t_LibXmount_Input_GetSupportedFormats pfun_input_GetSupportedFormats;
t_LibXmount_Input_GetFunctions pfun_input_GetFunctions;
t_LibXmount_Morphing_GetApiVersion pfun_morphing_GetApiVersion;
t_LibXmount_Morphing_GetSupportedTypes pfun_morphing_GetSupportedTypes;
t_LibXmount_Morphing_GetFunctions pfun_morphing_GetFunctions;
t_LibXmount_Output_GetApiVersion pfun_output_GetApiVersion;
t_LibXmount_Output_GetSupportedFormats pfun_output_GetSupportedFormats;
t_LibXmount_Output_GetFunctions pfun_output_GetFunctions;
const char *p_supported_formats=NULL;
const char *p_buf;
uint32_t supported_formats_len=0;
pts_InputLib p_input_lib=NULL;
pts_MorphingLib p_morphing_lib=NULL;
pts_OutputLib p_output_lib=NULL;
LOG_DEBUG("Searching for xmount libraries in '%s'.\n",
XMOUNT_LIBRARY_PATH);
// Open lib dir
p_dir=opendir(XMOUNT_LIBRARY_PATH);
if(p_dir==NULL) {
LOG_ERROR("Unable to access xmount library directory '%s'!\n",
XMOUNT_LIBRARY_PATH);
return FALSE;
}
// Construct base library path
base_library_path_len=strlen(XMOUNT_LIBRARY_PATH);
XMOUNT_STRSET(p_library_path,XMOUNT_LIBRARY_PATH);
if(XMOUNT_LIBRARY_PATH[base_library_path_len]!='/') {
base_library_path_len++;
XMOUNT_STRAPP(p_library_path,"/");
}
#define LIBXMOUNT_LOAD(path) { \
p_libxmount=dlopen(path,RTLD_NOW); \
if(p_libxmount==NULL) { \
LOG_ERROR("Unable to load input library '%s': %s!\n", \
path, \
dlerror()); \
continue; \
} \
}
#define LIBXMOUNT_LOAD_SYMBOL(name,pfun) { \
if((pfun=dlsym(p_libxmount,name))==NULL) { \
LOG_ERROR("Unable to load symbol '%s' from library '%s'!\n", \
name, \
p_library_path); \
dlclose(p_libxmount); \
p_libxmount=NULL; \
continue; \
} \
}
// Loop over lib dir
while((p_dirent=readdir(p_dir))!=NULL) {
LOG_DEBUG("Trying to load '%s'\n",p_dirent->d_name);
// Construct full path to found object
p_library_path=realloc(p_library_path,
base_library_path_len+strlen(p_dirent->d_name)+1);
if(p_library_path==NULL) {
LOG_ERROR("Couldn't allocate memory!\n");
exit(1);
}
strcpy(p_library_path+base_library_path_len,p_dirent->d_name);
if(strncmp(p_dirent->d_name,"libxmount_input_",16)==0) {
// Found possible input lib. Try to load it
LIBXMOUNT_LOAD(p_library_path);
// Load library symbols
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Input_GetApiVersion",
pfun_input_GetApiVersion);
// Check library's API version
if(pfun_input_GetApiVersion()!=LIBXMOUNT_INPUT_API_VERSION) {
LOG_DEBUG("Failed! Wrong API version.\n");
LOG_ERROR("Unable to load input library '%s'. Wrong API version\n",
p_library_path);
dlclose(p_libxmount);
continue;
}
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Input_GetSupportedFormats",
pfun_input_GetSupportedFormats);
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Input_GetFunctions",
pfun_input_GetFunctions);
// Construct new entry for our library list
XMOUNT_MALLOC(p_input_lib,pts_InputLib,sizeof(ts_InputLib));
// Initialize lib_functions structure to NULL
memset(&(p_input_lib->lib_functions),
0,
sizeof(ts_LibXmountInputFunctions));
// Set name and handle
XMOUNT_STRSET(p_input_lib->p_name,p_dirent->d_name);
p_input_lib->p_lib=p_libxmount;
// Get and set supported formats
p_supported_formats=pfun_input_GetSupportedFormats();
supported_formats_len=0;
p_buf=p_supported_formats;
while(*p_buf!='\0') {
supported_formats_len+=(strlen(p_buf)+1);
p_buf+=(strlen(p_buf)+1);
}
supported_formats_len++;
XMOUNT_MALLOC(p_input_lib->p_supported_input_types,
char*,
supported_formats_len);
memcpy(p_input_lib->p_supported_input_types,
p_supported_formats,
supported_formats_len);
// Get, set and check lib_functions
pfun_input_GetFunctions(&(p_input_lib->lib_functions));
if(p_input_lib->lib_functions.CreateHandle==NULL ||
p_input_lib->lib_functions.DestroyHandle==NULL ||
p_input_lib->lib_functions.Open==NULL ||
p_input_lib->lib_functions.Close==NULL ||
p_input_lib->lib_functions.Size==NULL ||
p_input_lib->lib_functions.Read==NULL ||
p_input_lib->lib_functions.OptionsHelp==NULL ||
p_input_lib->lib_functions.OptionsParse==NULL ||
p_input_lib->lib_functions.GetInfofileContent==NULL ||
p_input_lib->lib_functions.GetErrorMessage==NULL ||
p_input_lib->lib_functions.FreeBuffer==NULL)
{
LOG_DEBUG("Missing implemention of one or more functions in lib %s!\n",
p_dirent->d_name);
free(p_input_lib->p_supported_input_types);
free(p_input_lib->p_name);
free(p_input_lib);
dlclose(p_libxmount);
continue;
}
// Add entry to the input library list
XMOUNT_REALLOC(glob_xmount.input.pp_libs,
pts_InputLib*,
sizeof(pts_InputLib)*(glob_xmount.input.libs_count+1));
glob_xmount.input.pp_libs[glob_xmount.input.libs_count++]=p_input_lib;
LOG_DEBUG("Input library '%s' loaded successfully\n",p_dirent->d_name);
} if(strncmp(p_dirent->d_name,"libxmount_morphing_",19)==0) {
// Found possible morphing lib. Try to load it
LIBXMOUNT_LOAD(p_library_path);
// Load library symbols
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Morphing_GetApiVersion",
pfun_morphing_GetApiVersion);
// Check library's API version
if(pfun_morphing_GetApiVersion()!=LIBXMOUNT_MORPHING_API_VERSION) {
LOG_DEBUG("Failed! Wrong API version.\n");
LOG_ERROR("Unable to load morphing library '%s'. Wrong API version\n",
p_library_path);
dlclose(p_libxmount);
continue;
}
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Morphing_GetSupportedTypes",
pfun_morphing_GetSupportedTypes);
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Morphing_GetFunctions",
pfun_morphing_GetFunctions);
// Construct new entry for our library list
XMOUNT_MALLOC(p_morphing_lib,pts_MorphingLib,sizeof(ts_MorphingLib));
// Initialize lib_functions structure to NULL
memset(&(p_morphing_lib->lib_functions),
0,
sizeof(ts_LibXmountMorphingFunctions));
// Set name and handle
XMOUNT_STRSET(p_morphing_lib->p_name,p_dirent->d_name);
p_morphing_lib->p_lib=p_libxmount;
// Get and set supported types
p_supported_formats=pfun_morphing_GetSupportedTypes();
supported_formats_len=0;
p_buf=p_supported_formats;
while(*p_buf!='\0') {
supported_formats_len+=(strlen(p_buf)+1);
p_buf+=(strlen(p_buf)+1);
}
supported_formats_len++;
XMOUNT_MALLOC(p_morphing_lib->p_supported_morphing_types,
char*,
supported_formats_len);
memcpy(p_morphing_lib->p_supported_morphing_types,
p_supported_formats,
supported_formats_len);
// Get, set and check lib_functions
pfun_morphing_GetFunctions(&(p_morphing_lib->lib_functions));
if(p_morphing_lib->lib_functions.CreateHandle==NULL ||
p_morphing_lib->lib_functions.DestroyHandle==NULL ||
p_morphing_lib->lib_functions.Morph==NULL ||
p_morphing_lib->lib_functions.Size==NULL ||
p_morphing_lib->lib_functions.Read==NULL ||
p_morphing_lib->lib_functions.OptionsHelp==NULL ||
p_morphing_lib->lib_functions.OptionsParse==NULL ||
p_morphing_lib->lib_functions.GetInfofileContent==NULL ||
p_morphing_lib->lib_functions.GetErrorMessage==NULL ||
p_morphing_lib->lib_functions.FreeBuffer==NULL)
{
LOG_DEBUG("Missing implemention of one or more functions in lib %s!\n",
p_dirent->d_name);
free(p_morphing_lib->p_supported_morphing_types);
free(p_morphing_lib->p_name);
free(p_morphing_lib);
dlclose(p_libxmount);
continue;
}
// Add entry to the input library list
XMOUNT_REALLOC(glob_xmount.morphing.pp_libs,
pts_MorphingLib*,
sizeof(pts_MorphingLib)*
(glob_xmount.morphing.libs_count+1));
glob_xmount.morphing.pp_libs[glob_xmount.morphing.libs_count++]=
p_morphing_lib;
LOG_DEBUG("Morphing library '%s' loaded successfully\n",p_dirent->d_name);
} if(strncmp(p_dirent->d_name,"libxmount_output_",17)==0) {
// Found possible output lib. Try to load it
LIBXMOUNT_LOAD(p_library_path);
// Load library symbols
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Output_GetApiVersion",
pfun_output_GetApiVersion);
// Check library's API version
if(pfun_output_GetApiVersion()!=LIBXMOUNT_OUTPUT_API_VERSION) {
LOG_DEBUG("Failed! Wrong API version.\n");
LOG_ERROR("Unable to load output library '%s'. Wrong API version\n",
p_library_path);
dlclose(p_libxmount);
continue;
}
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Output_GetSupportedFormats",
pfun_output_GetSupportedFormats);
LIBXMOUNT_LOAD_SYMBOL("LibXmount_Output_GetFunctions",
pfun_output_GetFunctions);
// Construct new entry for our library list
XMOUNT_MALLOC(p_output_lib,pts_OutputLib,sizeof(ts_OutputLib));
// Initialize lib_functions structure to NULL
memset(&(p_output_lib->lib_functions),
0,
sizeof(ts_LibXmountOutput_Functions));
// Set name and handle
XMOUNT_STRSET(p_output_lib->p_name,p_dirent->d_name);
p_output_lib->p_lib=p_libxmount;
// Get and set supported types
p_supported_formats=pfun_output_GetSupportedFormats();
supported_formats_len=0;
p_buf=p_supported_formats;
while(*p_buf!='\0') {
supported_formats_len+=(strlen(p_buf)+1);
p_buf+=(strlen(p_buf)+1);
}
supported_formats_len++;
XMOUNT_MALLOC(p_output_lib->p_supported_output_formats,
char*,
supported_formats_len);
memcpy(p_output_lib->p_supported_output_formats,
p_supported_formats,
supported_formats_len);
// Get, set and check lib_functions
pfun_output_GetFunctions(&(p_output_lib->lib_functions));
if(p_output_lib->lib_functions.CreateHandle==NULL ||
p_output_lib->lib_functions.DestroyHandle==NULL ||
p_output_lib->lib_functions.Transform==NULL ||
p_output_lib->lib_functions.Size==NULL ||
p_output_lib->lib_functions.Read==NULL ||
p_output_lib->lib_functions.Write==NULL ||
p_output_lib->lib_functions.OptionsHelp==NULL ||
p_output_lib->lib_functions.OptionsParse==NULL ||
p_output_lib->lib_functions.GetInfofileContent==NULL ||
p_output_lib->lib_functions.GetErrorMessage==NULL ||
p_output_lib->lib_functions.FreeBuffer==NULL)
{
LOG_DEBUG("Missing implemention of one or more functions in lib %s!\n",
p_dirent->d_name);
free(p_output_lib->p_supported_output_formats);
free(p_output_lib->p_name);
free(p_output_lib);
dlclose(p_libxmount);
continue;
}
// Add entry to the input library list
XMOUNT_REALLOC(glob_xmount.output.pp_libs,
pts_OutputLib*,
sizeof(pts_OutputLib)*
(glob_xmount.output.libs_count+1));
glob_xmount.output.pp_libs[glob_xmount.output.libs_count++]=
p_output_lib;
LOG_DEBUG("Output library '%s' loaded successfully\n",p_dirent->d_name);
} else {
LOG_DEBUG("Ignoring '%s'.\n",p_dirent->d_name);
continue;
}
}
#undef LIBXMOUNT_LOAD_SYMBOL
#undef LIBXMOUNT_LOAD
LOG_DEBUG("A total of %u input libs, %u morphing libs and %u output libs "
"were loaded.\n",
glob_xmount.input.libs_count,
glob_xmount.morphing.libs_count,
glob_xmount.output.libs_count);
free(p_library_path);
closedir(p_dir);
return ((glob_xmount.input.libs_count>0 &&
glob_xmount.morphing.libs_count>0 &&
glob_xmount.output.libs_count>0) ? TRUE : FALSE);
}
//! Search an appropriate input lib for specified input type
/*!
* \param p_input_image Input image to search input lib for
* \return TRUE on success, FALSE on error
*/
static int FindInputLib(pts_InputImage p_input_image) {
char *p_buf;
LOG_DEBUG("Trying to find suitable library for input type '%s'.\n",
p_input_image->p_type);
// Loop over all loaded libs
for(uint32_t i=0;i<glob_xmount.input.libs_count;i++) {
LOG_DEBUG("Checking input library %s\n",
glob_xmount.input.pp_libs[i]->p_name);
p_buf=glob_xmount.input.pp_libs[i]->p_supported_input_types;
while(*p_buf!='\0') {
if(strcmp(p_buf,p_input_image->p_type)==0) {
// Library supports input type, set lib functions
LOG_DEBUG("Input library '%s' pretends to handle that input type.\n",
glob_xmount.input.pp_libs[i]->p_name);
p_input_image->p_functions=
&(glob_xmount.input.pp_libs[i]->lib_functions);
return TRUE;
}
p_buf+=(strlen(p_buf)+1);
}
}
LOG_DEBUG("Couldn't find any suitable library.\n");
// No library supporting input type found
return FALSE;
}
//! Search an appropriate morphing lib for the specified morph type
/*!
* \return TRUE on success, FALSE on error
*/
static int FindMorphingLib() {
char *p_buf;
LOG_DEBUG("Trying to find suitable library for morph type '%s'.\n",
glob_xmount.morphing.p_morph_type);
// Loop over all loaded libs
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
LOG_DEBUG("Checking morphing library %s\n",
glob_xmount.morphing.pp_libs[i]->p_name);
p_buf=glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types;
while(*p_buf!='\0') {
if(strcmp(p_buf,glob_xmount.morphing.p_morph_type)==0) {
// Library supports morph type, set lib functions
LOG_DEBUG("Morphing library '%s' pretends to handle that morph type.\n",
glob_xmount.morphing.pp_libs[i]->p_name);
glob_xmount.morphing.p_functions=
&(glob_xmount.morphing.pp_libs[i]->lib_functions);
return TRUE;
}
p_buf+=(strlen(p_buf)+1);
}
}
LOG_DEBUG("Couldn't find any suitable library.\n");
// No library supporting morph type found
return FALSE;
}
//! Search an appropriate output lib for the specified output format
/*!
* \return TRUE on success, FALSE on error
*/
static int FindOutputLib() {
char *p_buf;
LOG_DEBUG("Trying to find suitable library for output format '%s'.\n",
glob_xmount.output.p_output_format);
// Loop over all loaded output libs
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
LOG_DEBUG("Checking output library %s\n",
glob_xmount.output.pp_libs[i]->p_name);
p_buf=glob_xmount.output.pp_libs[i]->p_supported_output_formats;
while(*p_buf!='\0') {
if(strcmp(p_buf,glob_xmount.output.p_output_format)==0) {
// Library supports output type, set lib functions
LOG_DEBUG("Output library '%s' pretends to handle that output format.\n",
glob_xmount.output.pp_libs[i]->p_name);
glob_xmount.output.p_functions=
&(glob_xmount.output.pp_libs[i]->lib_functions);
return TRUE;
}
p_buf+=(strlen(p_buf)+1);
}
}
LOG_DEBUG("Couldn't find any suitable library.\n");
// No library supporting output format found
return FALSE;
}
static void InitResources() {
// Args
glob_xmount.args.overwrite_cache=FALSE;
glob_xmount.args.p_cache_file=NULL;
// Input
glob_xmount.input.libs_count=0;
glob_xmount.input.pp_libs=NULL;
glob_xmount.input.lib_params_count=0;
glob_xmount.input.pp_lib_params=NULL;
glob_xmount.input.images_count=0;
glob_xmount.input.pp_images=NULL;
glob_xmount.input.image_offset=0;
glob_xmount.input.image_size_limit=0;
glob_xmount.input.image_hash_lo=0;
glob_xmount.input.image_hash_hi=0;
// Morphing
glob_xmount.morphing.libs_count=0;
glob_xmount.morphing.pp_libs=NULL;
glob_xmount.morphing.p_morph_type=NULL;
glob_xmount.morphing.lib_params_count=0;
glob_xmount.morphing.pp_lib_params=NULL;
glob_xmount.morphing.p_handle=NULL;
glob_xmount.morphing.p_functions=NULL;
glob_xmount.morphing.input_image_functions.ImageCount=
&LibXmount_Morphing_ImageCount;
glob_xmount.morphing.input_image_functions.Size=&LibXmount_Morphing_Size;
glob_xmount.morphing.input_image_functions.Read=&LibXmount_Morphing_Read;
// Cache
glob_xmount.h_cache=NULL;
// Output
glob_xmount.output.libs_count=0;
glob_xmount.output.pp_libs=NULL;
glob_xmount.output.p_output_format=NULL;
glob_xmount.output.lib_params_count=0;
glob_xmount.output.pp_lib_params=NULL;
glob_xmount.output.p_handle=NULL;
glob_xmount.output.p_functions=NULL;
glob_xmount.output.input_functions.Size=&LibXmount_Output_Size;
glob_xmount.output.input_functions.Read=&LibXmount_Output_Read;
glob_xmount.output.input_functions.Write=&LibXmount_Output_Write;
glob_xmount.output.image_size=0;
glob_xmount.output.writable=FALSE;
glob_xmount.output.p_virtual_image_path=NULL;
glob_xmount.output.p_info_path=NULL;
glob_xmount.output.p_info_file=NULL;
// Misc data
glob_xmount.debug=FALSE;
glob_xmount.may_set_fuse_allow_other=FALSE;
glob_xmount.fuse_argc=0;
glob_xmount.pp_fuse_argv=NULL;
glob_xmount.p_mountpoint=NULL;
}
/*
* FreeResources
*/
static void FreeResources() {
int ret;
te_XmountCache_Error cache_ret=e_XmountCache_Error_None;
LOG_DEBUG("Freeing all resources\n");
// Misc
if(glob_xmount.pp_fuse_argv!=NULL) {
for(int i=0;i<glob_xmount.fuse_argc;i++) free(glob_xmount.pp_fuse_argv[i]);
free(glob_xmount.pp_fuse_argv);
}
if(glob_xmount.p_mountpoint!=NULL) free(glob_xmount.p_mountpoint);
// Output
if(glob_xmount.output.p_functions!=NULL) {
if(glob_xmount.output.p_handle!=NULL) {
// Destroy output handle
ret=glob_xmount.output.p_functions->
DestroyHandle(&(glob_xmount.output.p_handle));
if(ret!=0) {
LOG_ERROR("Unable to destroy output handle: %s!\n",
glob_xmount.output.p_functions->GetErrorMessage(ret));
}
}
}
if(glob_xmount.output.pp_lib_params!=NULL) {
for(uint32_t i=0;i<glob_xmount.output.lib_params_count;i++)
free(glob_xmount.output.pp_lib_params[i]);
free(glob_xmount.output.pp_lib_params);
}
if(glob_xmount.output.p_output_format!=NULL)
free(glob_xmount.output.p_output_format);
if(glob_xmount.output.pp_libs!=NULL) {
// Unload output libs
for(uint32_t i=0;i<glob_xmount.output.libs_count;i++) {
if(glob_xmount.output.pp_libs[i]==NULL) continue;
if(glob_xmount.output.pp_libs[i]->p_supported_output_formats!=NULL)
free(glob_xmount.output.pp_libs[i]->p_supported_output_formats);
if(glob_xmount.output.pp_libs[i]->p_lib!=NULL)
dlclose(glob_xmount.output.pp_libs[i]->p_lib);
if(glob_xmount.output.pp_libs[i]->p_name!=NULL)
free(glob_xmount.output.pp_libs[i]->p_name);
free(glob_xmount.output.pp_libs[i]);
}
free(glob_xmount.output.pp_libs);
}
if(glob_xmount.output.p_info_path!=NULL)
free(glob_xmount.output.p_info_path);
if(glob_xmount.output.p_info_file!=NULL)
free(glob_xmount.output.p_info_file);
if(glob_xmount.output.p_virtual_image_path!=NULL)
free(glob_xmount.output.p_virtual_image_path);
// Cache
if(glob_xmount.h_cache!=NULL) {
cache_ret=XmountCache_Close(&(glob_xmount.h_cache));
if(cache_ret!=e_XmountCache_Error_None) {
LOG_ERROR("Unable to close cache file: Error code %u: Ignoring!\n",
cache_ret);
}
}
// Morphing
if(glob_xmount.morphing.p_functions!=NULL) {
if(glob_xmount.morphing.p_handle!=NULL) {
// Destroy morphing handle
ret=glob_xmount.morphing.p_functions->
DestroyHandle(&(glob_xmount.morphing.p_handle));
if(ret!=0) {
LOG_ERROR("Unable to destroy morphing handle: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
}
}
}
if(glob_xmount.morphing.pp_lib_params!=NULL) {
for(uint32_t i=0;i<glob_xmount.morphing.lib_params_count;i++)
free(glob_xmount.morphing.pp_lib_params[i]);
free(glob_xmount.morphing.pp_lib_params);
}
if(glob_xmount.morphing.p_morph_type!=NULL)
free(glob_xmount.morphing.p_morph_type);
if(glob_xmount.morphing.pp_libs!=NULL) {
// Unload morphing libs
for(uint32_t i=0;i<glob_xmount.morphing.libs_count;i++) {
if(glob_xmount.morphing.pp_libs[i]==NULL) continue;
if(glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types!=NULL)
free(glob_xmount.morphing.pp_libs[i]->p_supported_morphing_types);
if(glob_xmount.morphing.pp_libs[i]->p_lib!=NULL)
dlclose(glob_xmount.morphing.pp_libs[i]->p_lib);
if(glob_xmount.morphing.pp_libs[i]->p_name!=NULL)
free(glob_xmount.morphing.pp_libs[i]->p_name);
free(glob_xmount.morphing.pp_libs[i]);
}
free(glob_xmount.morphing.pp_libs);
}
// Input
if(glob_xmount.input.pp_images!=NULL) {
// Close all input images
for(uint64_t i=0;i<glob_xmount.input.images_count;i++) {
if(glob_xmount.input.pp_images[i]==NULL) continue;
if(glob_xmount.input.pp_images[i]->p_functions!=NULL) {
if(glob_xmount.input.pp_images[i]->p_handle!=NULL) {
ret=glob_xmount.input.pp_images[i]->p_functions->
Close(glob_xmount.input.pp_images[i]->p_handle);
if(ret!=0) {
LOG_ERROR("Unable to close input image: %s\n",
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
}
ret=glob_xmount.input.pp_images[i]->p_functions->
DestroyHandle(&(glob_xmount.input.pp_images[i]->p_handle));
if(ret!=0) {
LOG_ERROR("Unable to destroy input image handle: %s\n",
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
}
}
}
if(glob_xmount.input.pp_images[i]->pp_files!=NULL) {
for(uint64_t ii=0;ii<glob_xmount.input.pp_images[i]->files_count;ii++) {
if(glob_xmount.input.pp_images[i]->pp_files[ii]!=NULL)
free(glob_xmount.input.pp_images[i]->pp_files[ii]);
}
free(glob_xmount.input.pp_images[i]->pp_files);
}
if(glob_xmount.input.pp_images[i]->p_type!=NULL)
free(glob_xmount.input.pp_images[i]->p_type);
free(glob_xmount.input.pp_images[i]);
}
free(glob_xmount.input.pp_images);
}
if(glob_xmount.input.pp_lib_params!=NULL) {
for(uint32_t i=0;i<glob_xmount.input.lib_params_count;i++)
free(glob_xmount.input.pp_lib_params[i]);
free(glob_xmount.input.pp_lib_params);
}
if(glob_xmount.input.pp_libs!=NULL) {
// Unload all input libs
for(uint32_t i=0;i<glob_xmount.input.libs_count;i++) {
if(glob_xmount.input.pp_libs[i]->p_supported_input_types!=NULL)
free(glob_xmount.input.pp_libs[i]->p_supported_input_types);
if(glob_xmount.input.pp_libs[i]->p_lib!=NULL)
dlclose(glob_xmount.input.pp_libs[i]->p_lib);
if(glob_xmount.input.pp_libs[i]->p_name!=NULL)
free(glob_xmount.input.pp_libs[i]->p_name);
free(glob_xmount.input.pp_libs[i]);
}
free(glob_xmount.input.pp_libs);
}
// Args
if(glob_xmount.args.p_cache_file!=NULL) {
XMOUNT_FREE(glob_xmount.args.p_cache_file);
}
// Before we return, initialize everything in case ReleaseResources would be
// called again.
InitResources();
}
-//! Function to split given library options
-static int SplitLibraryParameters(char *p_params,
- uint32_t *p_ret_opts_count,
- pts_LibXmountOptions **ppp_ret_opt)
-{
- pts_LibXmountOptions p_opts=NULL;
- pts_LibXmountOptions *pp_opts=NULL;
- uint32_t params_len;
- uint32_t opts_count=0;
- uint32_t sep_pos=0;
- char *p_buf=p_params;
-
- if(p_params==NULL) return FALSE;
-
- // Get params length
- params_len=strlen(p_params);
-
- // Return if no params specified
- if(params_len==0) {
- *ppp_ret_opt=NULL;
- p_ret_opts_count=0;
- return TRUE;
- }
-
- // Split params
- while(*p_buf!='\0') {
- XMOUNT_MALLOC(p_opts,pts_LibXmountOptions,sizeof(ts_LibXmountOptions));
- p_opts->valid=0;
-
-#define FREE_PP_OPTS() { \
- if(pp_opts!=NULL) { \
- for(uint32_t i=0;i<opts_count;i++) free(pp_opts[i]); \
- free(pp_opts); \
- } \
-}
-
- // Search next assignment operator
- sep_pos=0;
- while(p_buf[sep_pos]!='\0' && p_buf[sep_pos]!='=') sep_pos++;
- if(sep_pos==0 || p_buf[sep_pos]=='\0') {
- LOG_ERROR("Library parameter '%s' is missing an assignment operator!\n",
- p_buf);
- free(p_opts);
- FREE_PP_OPTS();
- return FALSE;
- }
-
- // Save option key
- XMOUNT_STRNSET(p_opts->p_key,p_buf,sep_pos);
- p_buf+=(sep_pos+1);
-
- // Search next separator
- sep_pos=0;
- while(p_buf[sep_pos]!='\0' && p_buf[sep_pos]!=',') sep_pos++;
- if(sep_pos==0) {
- LOG_ERROR("Library parameter '%s' is not of format key=value!\n",
- p_opts->p_key);
- free(p_opts->p_key);
- free(p_opts);
- FREE_PP_OPTS();
- return FALSE;
- }
-
- // Save option value
- XMOUNT_STRNSET(p_opts->p_value,p_buf,sep_pos);
- p_buf+=sep_pos;
-
- LOG_DEBUG("Extracted library option: '%s' = '%s'\n",
- p_opts->p_key,
- p_opts->p_value);
-
-#undef FREE_PP_OPTS
-
- // Add current option to return array
- XMOUNT_REALLOC(pp_opts,
- pts_LibXmountOptions*,
- sizeof(pts_LibXmountOptions)*(opts_count+1));
- pp_opts[opts_count++]=p_opts;
-
- // If we're not at the end of p_params, skip over separator for next run
- if(*p_buf!='\0') p_buf++;
- }
-
- LOG_DEBUG("Extracted a total of %" PRIu32 " library options\n",opts_count);
-
- *p_ret_opts_count=opts_count;
- *ppp_ret_opt=pp_opts;
- return TRUE;
-}
-
/*******************************************************************************
* LibXmount_Morphing function implementation
******************************************************************************/
//! Function to get the amount of input images
/*!
* \param p_count Count of input images
* \return 0 on success
*/
static int LibXmount_Morphing_ImageCount(uint64_t *p_count) {
*p_count=glob_xmount.input.images_count;
return 0;
}
//! Function to get the size of the morphed data
/*!
* \param image Image number
* \param p_size Pointer to store input image's size to
* \return 0 on success
*/
static int LibXmount_Morphing_Size(uint64_t image, uint64_t *p_size) {
if(image>=glob_xmount.input.images_count) return -1;
*p_size=glob_xmount.input.pp_images[image]->size;
return 0;
}
//! Function to read data from input image
/*!
* \param image Image number
* \param p_buf Buffer to store read data to
* \param offset Position at which to start reading
* \param count Amount of bytes to read
* \param p_read Number of read bytes on success
* \return 0 on success or negated error code on error
*/
static int LibXmount_Morphing_Read(uint64_t image,
char *p_buf,
off_t offset,
size_t count,
size_t *p_read)
{
if(image>=glob_xmount.input.images_count) return -EIO;
return ReadInputImageData(glob_xmount.input.pp_images[image],
p_buf,
offset,
count,
p_read);
}
/*******************************************************************************
* LibXmount_Output function implementation
******************************************************************************/
//! Function to get the size of the morphed image
/*!
* \param p_size Pointer to store morphed image's size to
* \return 0 on success
*/
static int LibXmount_Output_Size(uint64_t *p_size) {
int ret=0;
ret=GetMorphedImageSize(p_size);
return ret==TRUE ? 0 : ret;
}
//! Function to read data from the morphed image
/*!
* \param p_buf Buffer to store read data to
* \param offset Position at which to start reading
* \param count Amount of bytes to read
* \param p_read Number of read bytes on success
* \return 0 on success or negated error code on error
*/
static int LibXmount_Output_Read(char *p_buf,
off_t offset,
size_t count,
size_t *p_read)
{
return ReadMorphedImageData(p_buf,offset,count,p_read);
}
//! Function to write data to the morphed image
/*!
* \param p_buf Buffer with data to write
* \param offset Position at which to start writing
* \param count Amount of bytes to write
* \param p_written Number of written bytes on success
* \return 0 on success or negated error code on error
*/
static int LibXmount_Output_Write(char *p_buf,
off_t offset,
size_t count,
size_t *p_written)
{
return WriteMorphedImageData(p_buf,offset,count,p_written);
}
/*******************************************************************************
* Main
******************************************************************************/
int main(int argc, char *argv[]) {
struct stat file_stat;
int ret;
int fuse_ret;
char *p_err_msg;
te_XmountCache_Error cache_ret=e_XmountCache_Error_None;
// Set implemented FUSE functions
struct fuse_operations xmount_operations = {
//.access=FuseAccess,
.getattr=Xmount_FuseGetAttr,
.mkdir=Xmount_FuseMkDir,
.mknod=Xmount_FuseMkNod,
.open=Xmount_FuseOpen,
.readdir=Xmount_FuseReadDir,
.read=Xmount_FuseRead,
.rename=Xmount_FuseRename,
.rmdir=Xmount_FuseRmDir,
//.statfs=FuseStatFs,
.unlink=Xmount_FuseUnlink,
.write=Xmount_FuseWrite
};
// Disable std output / input buffering
setbuf(stdout,NULL);
setbuf(stderr,NULL);
// Init glob_xmount
InitResources();
// Load input, morphing and output libs
if(!LoadLibs()) {
LOG_ERROR("Unable to load any libraries!\n")
return 1;
}
// Check FUSE settings
CheckFuseSettings();
// Parse command line options
if(ParseCmdLine(argc,argv)!=TRUE) {
PrintUsage(argv[0]);
FreeResources();
return 1;
}
// Check command line options
if(glob_xmount.input.images_count==0) {
LOG_ERROR("No --in command line option specified!\n")
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(glob_xmount.fuse_argc<2) {
LOG_ERROR("Couldn't parse command line options!\n")
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(glob_xmount.morphing.p_morph_type==NULL) {
XMOUNT_STRSET(glob_xmount.morphing.p_morph_type,"combine");
}
// TODO: Add default output image format here
// Check if mountpoint is a valid dir
if(stat(glob_xmount.p_mountpoint,&file_stat)!=0) {
LOG_ERROR("Unable to stat mount point '%s'!\n",glob_xmount.p_mountpoint);
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(!S_ISDIR(file_stat.st_mode)) {
LOG_ERROR("Mount point '%s' is not a directory!\n",
glob_xmount.p_mountpoint);
PrintUsage(argv[0]);
FreeResources();
return 1;
}
if(glob_xmount.debug==TRUE) {
LOG_DEBUG("Options passed to FUSE: ")
for(int i=0;i<glob_xmount.fuse_argc;i++) {
printf("%s ",glob_xmount.pp_fuse_argv[i]);
}
printf("\n");
}
// Init mutexes
pthread_mutex_init(&(glob_xmount.mutex_image_rw),NULL);
pthread_mutex_init(&(glob_xmount.mutex_info_read),NULL);
// Load input images
for(uint64_t i=0;i<glob_xmount.input.images_count;i++) {
if(glob_xmount.debug==TRUE) {
if(glob_xmount.input.pp_images[i]->files_count==1) {
LOG_DEBUG("Loading image file \"%s\"...\n",
glob_xmount.input.pp_images[i]->pp_files[0])
} else {
LOG_DEBUG("Loading image files \"%s .. %s\"...\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->
pp_files[glob_xmount.input.pp_images[i]->files_count-1])
}
}
// Find input lib
if(!FindInputLib(glob_xmount.input.pp_images[i])) {
LOG_ERROR("Unknown input image type '%s' for input image '%s'!\n",
glob_xmount.input.pp_images[i]->p_type,
glob_xmount.input.pp_images[i]->pp_files[0])
PrintUsage(argv[0]);
FreeResources();
return 1;
}
// Init input image handle
ret=glob_xmount.input.pp_images[i]->p_functions->
CreateHandle(&(glob_xmount.input.pp_images[i]->p_handle),
glob_xmount.input.pp_images[i]->p_type,
glob_xmount.debug);
if(ret!=0) {
LOG_ERROR("Unable to init input handle for input image '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
FreeResources();
return 1;
}
// Parse input lib specific options
if(glob_xmount.input.pp_lib_params!=NULL) {
ret=glob_xmount.input.pp_images[i]->p_functions->
OptionsParse(glob_xmount.input.pp_images[i]->p_handle,
glob_xmount.input.lib_params_count,
glob_xmount.input.pp_lib_params,
(const char**)&p_err_msg);
if(ret!=0) {
if(p_err_msg!=NULL) {
LOG_ERROR("Unable to parse input library specific options for image "
"'%s': %s: %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret),
p_err_msg);
glob_xmount.input.pp_images[i]->p_functions->FreeBuffer(p_err_msg);
FreeResources();
return 1;
} else {
LOG_ERROR("Unable to parse input library specific options for image "
"'%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
FreeResources();
return 1;
}
}
}
// Open input image
ret=
glob_xmount.input.pp_images[i]->
p_functions->
Open(glob_xmount.input.pp_images[i]->p_handle,
(const char**)(glob_xmount.input.pp_images[i]->pp_files),
glob_xmount.input.pp_images[i]->files_count);
if(ret!=0) {
LOG_ERROR("Unable to open input image file '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->p_functions->
GetErrorMessage(ret));
FreeResources();
return 1;
}
// Determine input image size
ret=glob_xmount.input.pp_images[i]->
p_functions->
Size(glob_xmount.input.pp_images[i]->p_handle,
&(glob_xmount.input.pp_images[i]->size));
if(ret!=0) {
LOG_ERROR("Unable to determine size of input image '%s': %s!\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.pp_images[i]->
p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// If an offset was specified, check it against offset and change size
if(glob_xmount.input.image_offset!=0) {
if(glob_xmount.input.image_offset>glob_xmount.input.pp_images[i]->size) {
LOG_ERROR("The specified offset is larger than the size of the input "
"image '%s'! (%" PRIu64 " > %" PRIu64 ")\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.image_offset,
glob_xmount.input.pp_images[i]->size);
FreeResources();
return 1;
}
glob_xmount.input.pp_images[i]->size-=glob_xmount.input.image_offset;
}
// If a size limit was specified, check it and change size
if(glob_xmount.input.image_size_limit!=0) {
if(glob_xmount.input.pp_images[i]->size<
glob_xmount.input.image_size_limit)
{
LOG_ERROR("The specified size limit is larger than the size of the "
"input image '%s'! (%" PRIu64 " > %" PRIu64 ")\n",
glob_xmount.input.pp_images[i]->pp_files[0],
glob_xmount.input.image_size_limit,
glob_xmount.input.pp_images[i]->size);
FreeResources();
return 1;
}
glob_xmount.input.pp_images[i]->size=glob_xmount.input.image_size_limit;
}
LOG_DEBUG("Input image loaded successfully\n")
}
// Find morphing lib
if(FindMorphingLib()!=TRUE) {
LOG_ERROR("Unable to find a library supporting the morphing type '%s'!\n",
glob_xmount.morphing.p_morph_type);
FreeResources();
return 1;
}
// Init morphing
ret=glob_xmount.morphing.p_functions->
CreateHandle(&glob_xmount.morphing.p_handle,
glob_xmount.morphing.p_morph_type,
glob_xmount.debug);
if(ret!=0) {
LOG_ERROR("Unable to create morphing handle: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// Parse morphing lib specific options
if(glob_xmount.morphing.pp_lib_params!=NULL) {
p_err_msg=NULL;
ret=glob_xmount.morphing.p_functions->
OptionsParse(glob_xmount.morphing.p_handle,
glob_xmount.morphing.lib_params_count,
glob_xmount.morphing.pp_lib_params,
(const char**)&p_err_msg);
if(ret!=0) {
if(p_err_msg!=NULL) {
LOG_ERROR("Unable to parse morphing library specific options: %s: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret),
p_err_msg);
glob_xmount.morphing.p_functions->FreeBuffer(p_err_msg);
FreeResources();
return 1;
} else {
LOG_ERROR("Unable to parse morphing library specific options: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
}
}
// Morph image
ret=glob_xmount.morphing.p_functions->
Morph(glob_xmount.morphing.p_handle,
&(glob_xmount.morphing.input_image_functions));
if(ret!=0) {
LOG_ERROR("Unable to start morphing: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// Init random generator
srand(time(NULL));
// Calculate partial MD5 hash of input image file
if(CalculateInputImageHash(&(glob_xmount.input.image_hash_lo),
&(glob_xmount.input.image_hash_hi))==FALSE)
{
LOG_ERROR("Couldn't calculate partial hash of morphed image!\n")
return 1;
}
if(glob_xmount.debug==TRUE) {
LOG_DEBUG("Partial MD5 hash of morphed image: ")
for(int i=0;i<8;i++)
printf("%02hhx",*(((char*)(&(glob_xmount.input.image_hash_lo)))+i));
for(int i=0;i<8;i++)
printf("%02hhx",*(((char*)(&(glob_xmount.input.image_hash_hi)))+i));
printf("\n");
}
if(!ExtractOutputFileNames(glob_xmount.input.pp_images[0]->pp_files[0])) {
LOG_ERROR("Couldn't extract virtual file names!\n");
FreeResources();
return 1;
}
LOG_DEBUG("Virtual file names extracted successfully\n")
// Find output lib
if(FindOutputLib()!=TRUE) {
LOG_ERROR("Unable to find a library supporting the output format '%s'!\n",
glob_xmount.output.p_output_format);
FreeResources();
return 1;
}
// Init output
ret=glob_xmount.output.p_functions->
CreateHandle(&glob_xmount.output.p_handle,
glob_xmount.output.p_output_format,
glob_xmount.debug);
if(ret!=0) {
LOG_ERROR("Unable to create output handle: %s!\n",
glob_xmount.output.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// Parse output lib specific options
if(glob_xmount.output.pp_lib_params!=NULL) {
p_err_msg=NULL;
ret=glob_xmount.output.p_functions->
OptionsParse(glob_xmount.output.p_handle,
glob_xmount.output.lib_params_count,
glob_xmount.output.pp_lib_params,
(const char**)&p_err_msg);
if(ret!=0) {
if(p_err_msg!=NULL) {
LOG_ERROR("Unable to parse output library specific options: %s: %s!\n",
glob_xmount.output.p_functions->GetErrorMessage(ret),
p_err_msg);
glob_xmount.output.p_functions->FreeBuffer(p_err_msg);
FreeResources();
return 1;
} else {
LOG_ERROR("Unable to parse output library specific options: %s!\n",
glob_xmount.output.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
}
}
// Morph image
ret=glob_xmount.morphing.p_functions->
Morph(glob_xmount.morphing.p_handle,
&(glob_xmount.morphing.input_image_functions));
if(ret!=0) {
LOG_ERROR("Unable to start morphing: %s!\n",
glob_xmount.morphing.p_functions->GetErrorMessage(ret));
FreeResources();
return 1;
}
// Gather infos for info file
if(!InitInfoFile()) {
LOG_ERROR("Couldn't gather infos for virtual image info file!\n")
FreeResources();
return 1;
}
LOG_DEBUG("Virtual image info file build successfully\n")
if(glob_xmount.output.writable) {
// Init cache file and cache file block index
// TODO: Add cache file creration / opening
/*
if(glob_xmount.args.overwrite_cache==TRUE) {
cache_ret=XmountCache_Create(&(glob_xmount.h_cache),
glob_xmount.args.p_cache_file,
} else {
cache_ret=XmountCache_Open
}
te_XmountCache_Error cache_ret=e_XmountCache_Error_None;
if(!InitCacheFile()) {
LOG_ERROR("Couldn't initialize cache file!\n")
FreeResources();
return 1;
}
*/
LOG_DEBUG("Cache file initialized successfully\n")
}
// Call fuse_main to do the fuse magic
fuse_ret=fuse_main(glob_xmount.fuse_argc,
glob_xmount.pp_fuse_argv,
&xmount_operations,
NULL);
// Destroy mutexes
pthread_mutex_destroy(&(glob_xmount.mutex_image_rw));
pthread_mutex_destroy(&(glob_xmount.mutex_info_read));
// Free allocated memory
FreeResources();
return fuse_ret;
}
diff --git a/src/xmount_input.c b/src/xmount_input.c
index 09bfc75..4b27dc7 100644
--- a/src/xmount_input.c
+++ b/src/xmount_input.c
@@ -1,407 +1,445 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 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> // For calloc
#include <string.h> // For memcpy
#include <errno.h>
#include "xmount_input.h"
#include "xmount.h"
#include "macros.h"
/*******************************************************************************
* Private definitions / macros
******************************************************************************/
#define LOG_WARNING(...) { \
LIBXMOUNT_LOG_WARNING(__VA_ARGS__); \
}
#define LOG_ERROR(...) { \
LIBXMOUNT_LOG_ERROR(__VA_ARGS__); \
}
#define LOG_DEBUG(...) { \
LIBXMOUNT_LOG_DEBUG(glob_xmount.debug,__VA_ARGS__); \
}
/*******************************************************************************
* Private types / structures / enums
******************************************************************************/
//! Structure containing infos about input libs
typedef struct s_XmountInputLib {
//! 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_XmountInputLib, *pts_XmountInputLib;
//! Structure containing infos about input images
typedef struct s_XmountInputImage {
//! 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_XmountInputImage, *pts_XmountInputImage;
typedef struct s_XmountInputHandle {
//! Loaded input lib count
uint32_t libs_count;
//! Array containing infos about loaded input libs
pts_XmountInputLib *pp_libs;
//! Amount of input lib params (--inopts)
uint32_t lib_params_count;
//! Input lib params (--inopts)
pts_LibXmountOptions *pp_lib_params;
//! Input image count
uint64_t images_count;
//! Input images
pts_XmountInputImage *pp_images;
//! Input image offset (--offset)
uint64_t image_offset;
//! Input image size limit (--sizelimit)
uint64_t image_size_limit;
// TODO: Move
//! MD5 hash of partial input image (lower 64 bit) (after morph)
//uint64_t image_hash_lo;
//! MD5 hash of partial input image (higher 64 bit) (after morph)
//uint64_t image_hash_hi;
} ts_XmountInputHandle;
/*******************************************************************************
* Private functions declarations
******************************************************************************/
/*******************************************************************************
* Public functions implementations
******************************************************************************/
/*
* XmountInput_CreateHandle
*/
te_XmountInput_Error XmountInput_CreateHandle(pts_XmountInputHandle *pp_h) {
pts_XmountInputHandle p_h=NULL;
// Params check
if(pp_h==NULL) return e_XmountInput_Error_InvalidHandlePointer;
// Alloc new handle
p_h=(pts_XmountInputHandle)calloc(1,sizeof(ts_XmountInputHandle));
if(p_h==NULL) {
return e_XmountInput_Error_Alloc;
}
// Init values
p_h->pp_libs=NULL;
p_h->pp_lib_params=NULL;
p_h->pp_images=NULL;
*pp_h=p_h;
return e_XmountInput_Error_None;
}
/*
* XmountInput_DestroyHandle
*/
te_XmountInput_Error XmountInput_DestroyHandle(pts_XmountInputHandle *pp_h) {
pts_XmountInputHandle p_h=NULL;
// Params check
if(pp_h==NULL) return e_XmountInput_Error_InvalidHandlePointer;
if(*pp_h==NULL) return e_XmountInput_Error_InvalidHandle;
p_h=*pp_h;
// Free resources
if(p_h->libs_count>0 && p_h->pp_libs!=NULL) {
// TODO
}
if(p_h->lib_params_count!=0 && p_h->pp_lib_params!=NULL) {
// Free library parameter array
for(uint32_t i=0;i<p_h->lib_params_count;i++) {
free(p_h->pp_lib_params[i]);
}
free(p_h->pp_lib_params);
}
if(p_h->images_count!=0 && p_h->pp_images!=NULL) {
// TODO
}
return e_XmountInput_Error_None;
}
/*
* XmountInput_LoadLibs
*/
te_XmountInput_Error XmountInput_LoadLibs(pts_XmountInputHandle p_h) {
// TODO: Implement
return e_XmountInput_Error_None;
}
/*
* XmountInput_GetSupportedFormats
*/
te_XmountInput_Error XmountInput_GetSupportedFormats(pts_XmountInputHandle p_h,
char **pp_formats)
{
char *p_buf=NULL;
char *p_formats=NULL;
uint32_t cur_len=0;
uint32_t vector_len=0;
// Params check
if(p_h==NULL) return e_XmountInput_Error_InvalidHandle;
if(pp_formats==NULL) return e_XmountInput_Error_InvalidBuffer;
// Loop over all loaded libs, extract supported formats and add to our vector
// TODO: IMPROVEMENT: Final vector could be sorted
for(uint32_t i=0;i<p_h->libs_count;i++) {
p_buf=p_h->pp_libs[i]->p_supported_input_types;
while(p_buf!=NULL && *p_buf!='\0') p_buf+=(strlen(p_buf)+1);
cur_len=(uint32_t)(p_buf-p_h->pp_libs[i]->p_supported_input_types);
if(cur_len==0) continue;
p_formats=(char*)realloc(p_formats,vector_len+cur_len);
if(p_formats==NULL) return e_XmountInput_Error_Alloc;
memcpy(p_formats+vector_len,
p_h->pp_libs[i]->p_supported_input_types,
cur_len);
vector_len+=cur_len;
}
// Null-terminate vector
p_formats=(char*)realloc(p_formats,vector_len+1);
if(p_formats==NULL) return e_XmountInput_Error_Alloc;
p_formats[vector_len]='\0';
*pp_formats=p_formats;
return e_XmountInput_Error_None;
}
+/*
+ * XmountInput_SetOptions
+ */
+te_XmountInput_Error XmountInput_SetOptions(pts_XmountInputHandle p_h,
+ char *p_options)
+{
+ // Params check
+ if(p_h==NULL) return e_XmountInput_Error_InvalidHandle;
+ if(p_options==NULL) return e_XmountInput_Error_InvalidString;
+
+ // Make sure library parameters haven't been set previously
+ if(p_h->pp_lib_params!=NULL) {
+ LOG_ERROR("Input library options already set!\n");
+ return e_XmountInput_Error_LibOptionsAlreadySet;
+ }
+
+ // Save options
+ if(XmountLib_SplitLibParams(p_options,
+ &(p_h->lib_params_count),
+ &(p_h->pp_lib_params))!=0)
+ {
+ LOG_ERROR("Unable to parse input library options '%s'!\n",p_options);
+ return e_XmountInput_Error_FailedParsingOptions;
+ }
+
+ return e_XmountInput_Error_None;
+}
+
/*
* XmountInput_GetOptionsHelpText
*/
te_XmountInput_Error XmountInput_GetOptionsHelpText(pts_XmountInputHandle p_h,
char **pp_help_text)
{
const char *p_buf=NULL;
char *p_help=NULL;
int ret=0;
// Params check
if(p_h==NULL) return e_XmountInput_Error_InvalidHandle;
if(pp_help_text==NULL) return e_XmountInput_Error_InvalidBuffer;
// Loop over all loaded libs, extract help and add to our text buffer
// TODO: IMPROVEMENT: Final text should be sorted by lib's name
for(uint32_t i=0;i<p_h->libs_count;i++) {
ret=p_h->pp_libs[i]->lib_functions.OptionsHelp(&p_buf);
if(ret!=0) {
LOG_ERROR("Unable to get options help for library '%s': %s!\n",
p_h->pp_libs[i]->p_name,
p_h->pp_libs[i]->lib_functions.GetErrorMessage(ret));
continue;
}
if(p_buf==NULL) continue;
XMOUNT_STRAPP(p_help," - ");
XMOUNT_STRAPP(p_help,p_h->pp_libs[i]->p_name);
XMOUNT_STRAPP(p_help,"\n");
XMOUNT_STRAPP(p_help,p_buf);
XMOUNT_STRAPP(p_help,"\n");
ret=p_h->pp_libs[i]->lib_functions.FreeBuffer(p_buf);
if(ret!=0) {
LOG_ERROR("Unable to free options help text from library '%s': %s!\n",
p_h->pp_libs[i]->p_name,
p_h->pp_libs[i]->lib_functions.GetErrorMessage(ret));
}
}
*pp_help_text=p_help;
return e_XmountInput_Error_None;
}
/*
* XmountInput_AddImage
*/
te_XmountInput_Error XmountInput_AddImage(pts_XmountInputHandle p_h,
const char *p_format,
uint64_t files_count,
const char **pp_files)
{
pts_XmountInputImage p_image=NULL;
// Params check
if(p_h==NULL) return e_XmountInput_Error_InvalidHandle;
if(p_format==NULL) return e_XmountInput_Error_InvalidString;
if(pp_files==NULL) return e_XmountInput_Error_InvalidArray;
// Alloc and fill new image structure
XMOUNT_CALLOC(p_image,pts_XmountInputImage,sizeof(ts_XmountInputImage));
XMOUNT_STRSET(p_image->p_type,p_format);
p_image->files_count=files_count;
XMOUNT_CALLOC(p_image->pp_files,char**,p_image->files_count*sizeof(char*));
for(uint64_t i=0;i<p_image->files_count;i++) {
XMOUNT_STRSET(p_image->pp_files[i],pp_files[i]);
}
p_image->p_functions=NULL;
p_image->p_handle=NULL;
// TODO: Find lib and open input file
// Add image to our image array
XMOUNT_REALLOC(p_h->pp_images,pts_XmountInputImage*,p_h->images_count+1);
p_h->pp_images[p_h->images_count++]=p_image;
return e_XmountInput_Error_None;
}
/*
* XmountInput_SetInputOffset
*/
te_XmountInput_Error XmountInput_SetInputOffset(pts_XmountInputHandle p_h,
uint64_t offset)
{
- // TODO: Implement
+ // Params check
+ if(p_h==NULL) return e_XmountInput_Error_InvalidHandle;
+
+ LOG_DEBUG("Setting input image offset to \"%" PRIu64 "\"\n",offset);
+
+ p_h->image_offset=offset;
return e_XmountInput_Error_None;
}
/*
* XmountInput_SetInputSizeLimit
*/
te_XmountInput_Error XmountInput_SetInputSizeLimit(pts_XmountInputHandle p_h,
uint64_t size_limit)
{
- // TODO: Implement
+ // Params check
+ if(p_h==NULL) return e_XmountInput_Error_InvalidHandle;
+
+ LOG_DEBUG("Setting input image size limit to \"%" PRIu64 "\"\n",size_limit);
+
+ p_h->image_size_limit=size_limit;
return e_XmountInput_Error_None;
}
/*
* XmountInput_GetSize
*/
te_XmountInput_Error XmountInput_GetSize(pts_XmountInputHandle p_h,
uint64_t image_nr,
uint64_t *p_size)
{
// TODO: Implement
return e_XmountInput_Error_None;
}
/*
* XmountInput_ReadData
*/
te_XmountInput_Error XmountInput_ReadData(pts_XmountInputHandle p_h,
uint64_t image_nr,
char *p_buf,
uint64_t offset,
uint64_t count)
{
// TODO: Implement
return e_XmountInput_Error_None;
}
/*
* XmountInput_WriteData
*/
te_XmountInput_Error XmountInput_WriteData(pts_XmountInputHandle p_h,
uint64_t image_nr,
const char *p_buf,
uint64_t offset,
uint64_t count)
{
// TODO: Implement
return e_XmountInput_Error_None;
}
/*******************************************************************************
* Private functions implementations
******************************************************************************/
//! Read data from input image
/*!
* \param p_image Image from which to read data
* \param p_buf Pointer to buffer to write read data to (must be preallocated!)
* \param offset Offset at which data should be read
* \param size Size of data which should be read (size of buffer)
* \param p_read Number of read bytes on success
* \return 0 on success, negated error code on error
*/
/*
int ReadInputImageData(pts_InputImage p_image,
char *p_buf,
off_t offset,
size_t size,
size_t *p_read)
{
int ret;
size_t to_read=0;
int read_errno=0;
LOG_DEBUG("Reading %zu bytes at offset %zu from input image '%s'\n",
size,
offset,
p_image->pp_files[0]);
// Make sure we aren't reading past EOF of image file
if(offset>=p_image->size) {
// Offset is beyond image size
LOG_DEBUG("Offset %zu is at / beyond size of input image '%s'\n",
offset,
p_image->pp_files[0]);
*p_read=0;
return 0;
}
if(offset+size>p_image->size) {
// Attempt to read data past EOF of image file
to_read=p_image->size-offset;
LOG_DEBUG("Attempt to read data past EOF of input image '%s'. "
"Correcting size from %zu to %zu\n",
p_image->pp_files[0],
size,
to_read);
} else to_read=size;
// Read data from image file (adding input image offset if one was specified)
ret=p_image->p_functions->Read(p_image->p_handle,
p_buf,
offset+glob_xmount.input.image_offset,
to_read,
p_read,
&read_errno);
if(ret!=0) {
LOG_ERROR("Couldn't read %zu bytes at offset %zu from input image "
"'%s': %s!\n",
to_read,
offset,
p_image->pp_files[0],
p_image->p_functions->GetErrorMessage(ret));
if(read_errno==0) return -EIO;
else return (read_errno*(-1));
}
return 0;
}
*/
diff --git a/src/xmount_input.h b/src/xmount_input.h
index a3458c7..24e025a 100644
--- a/src/xmount_input.h
+++ b/src/xmount_input.h
@@ -1,243 +1,268 @@
/*******************************************************************************
* xmount Copyright (c) 2008-2016 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 XMOUNT_INPUT_H
#define XMOUNT_INPUT_H
#include "../libxmount_input/libxmount_input.h"
/*
//! Structure containing infos about input libs
typedef struct s_InputLib {
//! Filename of lib (without path)
char *p_name;
//! Handle to the loaded lib
void *p_lib;
//! Array of supported input types
char *p_supported_input_types;
//! Struct containing lib functions
ts_LibXmountInputFunctions lib_functions;
} ts_InputLib, *pts_InputLib;
//! Structure containing infos about input images
typedef struct s_InputImage {
//! Image type
char *p_type;
//! Image source file count
uint64_t files_count;
//! Image source files
char **pp_files;
//! Input lib functions for this image
pts_LibXmountInputFunctions p_functions;
//! Image handle
void *p_handle;
//! Image size
uint64_t size;
} ts_InputImage, *pts_InputImage;
typedef struct s_InputData {
//! Loaded input lib count
uint32_t libs_count;
//! Array containing infos about loaded input libs
pts_InputLib *pp_libs;
//! Amount of input lib params (--inopts)
uint32_t lib_params_count;
//! Input lib params (--inopts)
pts_LibXmountOptions *pp_lib_params;
//! Input image count
uint64_t images_count;
//! Input images
pts_InputImage *pp_images;
//! Input image offset (--offset)
uint64_t image_offset;
//! Input image size limit (--sizelimit)
uint64_t image_size_limit;
//! MD5 hash of partial input image (lower 64 bit) (after morph)
uint64_t image_hash_lo;
//! MD5 hash of partial input image (higher 64 bit) (after morph)
uint64_t image_hash_hi;
} ts_InputData;
int ReadInputImageData(pts_InputImage, char*, off_t, size_t, size_t*);
*/
/*******************************************************************************
* Public definitions / macros
******************************************************************************/
/*******************************************************************************
* Public types / structures / enums
******************************************************************************/
typedef struct s_XmountInputHandle *pts_XmountInputHandle;
typedef enum e_XmountInput_Error {
//! No error
e_XmountInput_Error_None=0,
//! Error to allocate memory
e_XmountInput_Error_Alloc,
//! Invalid input handle
e_XmountInput_Error_InvalidHandle,
//! Invalid pointer to an input handle
e_XmountInput_Error_InvalidHandlePointer,
//! A given buffer is invalid
e_XmountInput_Error_InvalidBuffer,
//! A given string is invalid
e_XmountInput_Error_InvalidString,
//! A given array is invalid
e_XmountInput_Error_InvalidArray,
+ //! Library options have already been set
+ e_XmountInput_Error_LibOptionsAlreadySet,
+ //! Library options couldn't be parsed
+ e_XmountInput_Error_FailedParsingOptions,
/*
//! A given file path / name is invalid
e_XmountCache_Error_InvalidFile,
//! A given file does not exist
e_XmountCache_Error_InexistingFile,
//! A given file exists
e_XmountCache_Error_ExistingFile,
//! Unable to create needed xmount structures inside cache file
e_XmountCache_Error_FailedCacheInit,
//! Unable to open xmount cache file
e_XmountCache_Error_FailedOpeningCache,
//! Failed to get block cache index size
e_XmountCache_Error_FailedGettingIndexSize,
//! Invalid block cache index size
e_XmountCache_Error_InvalidIndexSize,
//! Unable to read block cache index
e_XmountCache_Error_FailedReadingIndex,
//! Failed closing cache block index
e_XmountCache_Error_FailedClosingIndex,
//! Failed closing cache block index
e_XmountCache_Error_FailedClosingBlockCache,
//! Failed closing cache block index
e_XmountCache_Error_FailedClosingCache,
//! Failed to update block cache index
e_XmountCache_Error_FailedUpdatingIndex,
//! Invalid block cache index specified
e_XmountCache_Error_InvalidIndex,
//! Block has not yet been cached
e_XmountCache_Error_UncachedBlock,
//! Invalid buffer specified
e_XmountCache_Error_InvalidBuffer,
//! Request would read beyond a single cache block
e_XmountCache_Error_ReadBeyondBlockBounds,
//! Failed reading cached data
e_XmountCache_Error_FailedReadingBlockCache,
//! Failed writing cached data
e_XmountCache_Error_FailedWritingBlockCache,
*/
} te_XmountInput_Error;
/*******************************************************************************
* Public functions declarations
******************************************************************************/
/*!
* \brief Create new input handle
*
* Creates a new input handle.
*
* \param pp_h Pointer to input handle
* \return e_XmountInput_Error_None on success
*/
te_XmountInput_Error XmountInput_CreateHandle(pts_XmountInputHandle *pp_h);
/*!
* \brief Destroy input handle
*
* Invalidates the given handle and frees all used resources.
*
* \param pp_h Pointer to input handle
* \return e_XmountInput_Error_None on success
*/
te_XmountInput_Error XmountInput_DestroyHandle(pts_XmountInputHandle *pp_h);
/*!
* \brief XXX
*
* XXX
*
* \param p_h Input handle
*/
te_XmountInput_Error XmountInput_LoadLibs(pts_XmountInputHandle p_h);
/*!
* \brief Return all supported formats
*
* Returns a null-terminated vector of all supported input formats.
*
* The returned vector must be freed by the caller.
*
* \param p_h Input handle
* \param pp_formats Supported formats vector is returned in this var
* \return e_XmountInput_Error_None on success
*/
te_XmountInput_Error XmountInput_GetSupportedFormats(pts_XmountInputHandle p_h,
char **pp_formats);
+/*!
+ * \brief Set library options
+ *
+ * Parses the given library option string (as given after --inopts).
+ *
+ * \param p_h Input handle
+ * \param p_options Library option string
+ * \return e_XmountInput_Error_None on success
+ */
+te_XmountInput_Error XmountInput_SetOptions(pts_XmountInputHandle p_h,
+ char *p_options);
+
/*!
* \brief Return all library specific option help texts
*
* Returns a string containing help messages for all loaded input lib options.
* The string is pre-formated to be used in xmount's help output.
*
* The caller must free the returned string.
*
* \param p_h Input handle
* \param pp_help_text Help text is returned in this parameter
* \return e_XmountInput_Error_None on success
*/
te_XmountInput_Error XmountInput_GetOptionsHelpText(pts_XmountInputHandle p_h,
char **pp_help_text);
+/*!
+ * \brief Generate a text containing infos about loaded libs
+ *
+ * TODO
+ *
+ */
+te_XmountInput_Error XmountInput_GetLibsInfoText(pts_XmountInputHandle p_h,
+ char **pp_info_text);
+
/*!
* \brief Add an input image
*
* Adds the given input image to the list of available input images.
*
* \param p_h Input handle
* \param p_format Input image format string as given by the user
* \param files_count Amount of files specified by the user
* \param pp_files Array containing all specified files
* \return e_XmountInput_Error_None on success
*/
te_XmountInput_Error XmountInput_AddImage(pts_XmountInputHandle p_h,
const char *p_format,
uint64_t files_count,
const char **pp_files);
te_XmountInput_Error XmountInput_SetInputOffset(pts_XmountInputHandle p_h,
uint64_t offset);
te_XmountInput_Error XmountInput_SetInputSizeLimit(pts_XmountInputHandle p_h,
uint64_t size_limit);
te_XmountInput_Error XmountInput_GetSize(pts_XmountInputHandle p_h,
uint64_t image_nr,
uint64_t *p_size);
te_XmountInput_Error XmountInput_ReadData(pts_XmountInputHandle p_h,
uint64_t image_nr,
char *p_buf,
uint64_t offset,
uint64_t count);
te_XmountInput_Error XmountInput_WriteData(pts_XmountInputHandle p_h,
uint64_t image_nr,
const char *p_buf,
uint64_t offset,
uint64_t count);
#endif // XMOUNT_INPUT_H

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