/src/libvslvm/libvslvm/libvslvm_physical_volume.c

Source (jump to first uncovered line)
/*
 * Physical volume functions
 *
 * Copyright (C) 2014-2024, Joachim Metz <joachim.metz@gmail.com>
 *
 * Refer to AUTHORS for acknowledgements.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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 Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include <common.h>
#include <byte_stream.h>
#include <memory.h>
#include <types.h>

#include "libvslvm_checksum.h"
#include "libvslvm_data_area_descriptor.h"
#include "libvslvm_libbfio.h"
#include "libvslvm_libcdata.h"
#include "libvslvm_libcerror.h"
#include "libvslvm_libcnotify.h"
#include "libvslvm_physical_volume.h"
#include "libvslvm_types.h"
#include "libvslvm_unused.h"

#include "vslvm_physical_volume_label.h"

const char *vslvm_physical_volume_label_signature = "LABELONE";

const uint8_t vslvm_empty_data_area_descriptor[ 16 ] = {
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

/* Creates a physical volume
 * Make sure the value physical_volume is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_initialize(
     libvslvm_physical_volume_t **physical_volume,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_initialize";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  if( *physical_volume != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: invalid physical volume value already set.",
     function );

    return( -1 );
  }
  internal_physical_volume = memory_allocate_structure(
                              libvslvm_internal_physical_volume_t );

  if( internal_physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create physical volume.",
     function );

    goto on_error;
  }
  if( memory_set(
       internal_physical_volume,
       0,
       sizeof( libvslvm_internal_physical_volume_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear physical volume.",
     function );

    memory_free(
     internal_physical_volume );

    return( -1 );
  }
  if( libcdata_array_initialize(
       &( internal_physical_volume->data_area_descriptors_array ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create data area descripors array.",
     function );

    goto on_error;
  }
  if( libcdata_array_initialize(
       &( internal_physical_volume->metadata_area_descriptors_array ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create metadata area descripors array.",
     function );

    goto on_error;
  }
  *physical_volume= (libvslvm_physical_volume_t *) internal_physical_volume;

  return( 1 );

on_error:
  if( internal_physical_volume != NULL )
  {
    if( internal_physical_volume->data_area_descriptors_array != NULL )
    {
      libcdata_array_free(
       &( internal_physical_volume->data_area_descriptors_array ),
       NULL,
       NULL );
    }
    memory_free(
     internal_physical_volume );
  }
  return( -1 );
}

/* Frees a physical volume
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_free(
     libvslvm_physical_volume_t **physical_volume,
     libcerror_error_t **error )
{
  static char *function = "libvslvm_physical_volume_free";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  if( *physical_volume != NULL )
  {
    *physical_volume = NULL;
  }
  return( 1 );
}

/* Frees a physical volume
 * Returns 1 if successful or -1 on error
 */
int libvslvm_internal_physical_volume_free(
     libvslvm_internal_physical_volume_t **internal_physical_volume,
     libcerror_error_t **error )
{
  static char *function = "libvslvm_internal_physical_volume_free";
  int result            = 1;

  if( internal_physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  if( *internal_physical_volume != NULL )
  {
    if( ( *internal_physical_volume )->name != NULL )
    {
      memory_free(
       ( *internal_physical_volume )->name );
    }
    if( ( *internal_physical_volume )->device_path != NULL )
    {
      memory_free(
       ( *internal_physical_volume )->device_path );
    }
    if( libcdata_array_free(
         &( ( *internal_physical_volume )->data_area_descriptors_array ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libvslvm_data_area_descriptor_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free data area descriptors array.",
       function );

      result = -1;
    }
    if( libcdata_array_free(
         &( ( *internal_physical_volume )->metadata_area_descriptors_array ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libvslvm_data_area_descriptor_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free metadata area descriptors array.",
       function );

      result = -1;
    }
    memory_free(
     *internal_physical_volume );

    *internal_physical_volume = NULL;
  }
  return( result );
}

/* Retrieves the size of the ASCII formatted name
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_name_size(
     libvslvm_physical_volume_t *physical_volume,
     size_t *name_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_name_size";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( name_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid name size.",
     function );

    return( -1 );
  }
  *name_size = internal_physical_volume->name_size;

  return( 1 );
}

/* Retrieves the ASCII formatted name
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_name(
     libvslvm_physical_volume_t *physical_volume,
     char *name,
     size_t name_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_name";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( name == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid name.",
     function );

    return( -1 );
  }
  if( name_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid name size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( name_size < internal_physical_volume->name_size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
     "%s: invalid name size value too small.",
     function );

    return( -1 );
  }
  if( memory_copy(
       name,
       internal_physical_volume->name,
       internal_physical_volume->name_size ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy name.",
     function );

    return( -1 );
  }
  name[ internal_physical_volume->name_size - 1 ] = 0;

  return( 1 );
}

/* Sets the name
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_set_name(
     libvslvm_physical_volume_t *physical_volume,
     const char *name,
     size_t name_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_set_name";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( name == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid name.",
     function );

    return( -1 );
  }
  if( ( name_size == 0 )
   || ( name_size > (size_t) MEMORY_MAXIMUM_ALLOCATION_SIZE ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid name size value out of bounds.",
     function );

    return( -1 );
  }
  if( internal_physical_volume->name != NULL )
  {
    memory_free(
     internal_physical_volume->name );

    internal_physical_volume->name      = NULL;
    internal_physical_volume->name_size = 0;
  }
  internal_physical_volume->name = (char *) memory_allocate(
                                             sizeof( char ) * name_size );

  if( internal_physical_volume->name == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create name.",
     function );

    goto on_error;
  }
  if( memory_copy(
       internal_physical_volume->name,
       name,
       name_size ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy name.",
     function );

    goto on_error;
  }
  internal_physical_volume->name[ name_size - 1 ] = 0;

  internal_physical_volume->name_size = name_size;

  return( 1 );

on_error:
  if( internal_physical_volume->name != NULL )
  {
    memory_free(
     internal_physical_volume->name );

    internal_physical_volume->name = NULL;
  }
  internal_physical_volume->name_size = 0;

  return( -1 );
}

/* Compares the name with that of the physical volume
 * Returns 1 if the name matches, 0 if not or -1 on error
 */
int libvslvm_physical_volume_compare_by_name(
     libvslvm_physical_volume_t *physical_volume,
     const char *name,
     size_t name_length,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_compare_by_name";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( name == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid name.",
     function );

    return( -1 );
  }
  if( name_length > (size_t) ( SSIZE_MAX - 1 ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: name length value exceeds maximum.",
     function );

    return( -1 );
  }
  if( ( internal_physical_volume->name_size == ( name_length + 1 ) )
   && ( memory_compare(
         name,
         internal_physical_volume->name,
         internal_physical_volume->name_size ) == 0 ) )
  {
    return( 1 );
  }
  return( 0 );
}

/* Retrieves the size of the ASCII formatted identifier
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_identifier_size(
     libvslvm_physical_volume_t *physical_volume,
     size_t *identifier_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_identifier_size";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( identifier_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid identifier size.",
     function );

    return( -1 );
  }
  if( internal_physical_volume->identifier[ 0 ] == 0 )
  {
    *identifier_size = 0;
  }
  else
  {
    *identifier_size = 39;
  }
  return( 1 );
}

/* Retrieves the ASCII formatted identifier
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_identifier(
     libvslvm_physical_volume_t *physical_volume,
     char *identifier,
     size_t identifier_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_set_identifier";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( identifier == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid identifier.",
     function );

    return( -1 );
  }
  if( identifier_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid identifier size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( identifier_size < 39 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
     "%s: invalid identifier size value too small.",
     function );

    return( -1 );
  }
  if( memory_copy(
       identifier,
       internal_physical_volume->identifier,
       39 ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy identifier.",
     function );

    return( -1 );
  }
  identifier[ 38 ] = 0;

  return( 1 );
}

/* Sets the identifier
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_set_identifier(
     libvslvm_physical_volume_t *physical_volume,
     const char *identifier,
     size_t identifier_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_set_identifier";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( identifier == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid identifier.",
     function );

    return( -1 );
  }
  if( identifier_size != 39 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: identifier size value out of bounds.",
     function );

    return( -1 );
  }
  if( memory_copy(
       internal_physical_volume->identifier,
       identifier,
       39 ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy identifier.",
     function );

    return( -1 );
  }
  internal_physical_volume->identifier[ 38 ] = 0;

  return( 1 );
}

/* Retrieves the size of the ASCII formatted device path
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_device_path_size(
     libvslvm_physical_volume_t *physical_volume,
     size_t *device_path_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_device_path_size";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( device_path_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid device path size.",
     function );

    return( -1 );
  }
  *device_path_size = internal_physical_volume->device_path_size;

  return( 1 );
}

/* Retrieves the ASCII formatted device path
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_device_path(
     libvslvm_physical_volume_t *physical_volume,
     char *device_path,
     size_t device_path_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_set_device_path";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( device_path == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid device_path.",
     function );

    return( -1 );
  }
  if( device_path_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid device path size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( device_path_size < internal_physical_volume->device_path_size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
     "%s: invalid device path size value too small.",
     function );

    return( -1 );
  }
  if( memory_copy(
       device_path,
       internal_physical_volume->device_path,
       internal_physical_volume->device_path_size ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy device path.",
     function );

    return( -1 );
  }
  device_path[ internal_physical_volume->device_path_size - 1 ] = 0;

  return( 1 );
}

/* Sets the device path
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_set_device_path(
     libvslvm_physical_volume_t *physical_volume,
     const char *device_path,
     size_t device_path_size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_set_device_path";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( device_path == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid device path.",
     function );

    return( -1 );
  }
  if( ( device_path_size == 0 )
   || ( device_path_size > (size_t) MEMORY_MAXIMUM_ALLOCATION_SIZE ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid device path size value out of bounds.",
     function );

    return( -1 );
  }
  if( internal_physical_volume->device_path != NULL )
  {
    memory_free(
     internal_physical_volume->device_path );

    internal_physical_volume->device_path      = NULL;
    internal_physical_volume->device_path_size = 0;
  }
  internal_physical_volume->device_path = (char *) memory_allocate(
                                                    sizeof( char ) * device_path_size );

  if( internal_physical_volume->device_path == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create device path.",
     function );

    goto on_error;
  }
  if( memory_copy(
       internal_physical_volume->device_path,
       device_path,
       device_path_size ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy device path.",
     function );

    goto on_error;
  }
  internal_physical_volume->device_path[ device_path_size - 1 ] = 0;

  internal_physical_volume->device_path_size = device_path_size;

  return( 1 );

on_error:
  if( internal_physical_volume->device_path != NULL )
  {
    memory_free(
     internal_physical_volume->device_path );

    internal_physical_volume->device_path = NULL;
  }
  internal_physical_volume->device_path_size = 0;

  return( -1 );
}

/* Retrieves the size
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_size(
     libvslvm_physical_volume_t *physical_volume,
     size64_t *size,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_size";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid size.",
     function );

    return( -1 );
  }
  *size = internal_physical_volume->size;

  return( 1 );
}

/* Retrieves the number of data area descriptors
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_number_of_data_area_descriptors(
     libvslvm_physical_volume_t *physical_volume,
     int *number_of_data_area_descriptors,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_number_of_data_area_descriptors";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( libcdata_array_get_number_of_entries(
       internal_physical_volume->data_area_descriptors_array,
       number_of_data_area_descriptors,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data area descriptors from array.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves a specific data area descriptor
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_data_area_descriptor(
     libvslvm_physical_volume_t *physical_volume,
     int data_area_descriptor_index,
     libvslvm_data_area_descriptor_t **data_area_descriptor,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_data_area_descriptor";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( libcdata_array_get_entry_by_index(
       internal_physical_volume->data_area_descriptors_array,
       data_area_descriptor_index,
       (intptr_t **) data_area_descriptor,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve data area descriptor: %d.",
     function,
     data_area_descriptor_index );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves the data area descriptor for a specific offset
 * Returns 1 if successful, 0 if no such data area descriptor or -1 on error
 */
int libvslvm_physical_volume_get_data_area_descriptor_by_offset(
     libvslvm_physical_volume_t *physical_volume,
     uint64_t offset,
     libvslvm_data_area_descriptor_t **data_area_descriptor,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_data_area_descriptor_by_offset";
  int data_area_descriptor_index                                = 0;
  int number_of_data_area_descriptors                           = 0;

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( data_area_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data area descriptor.",
     function );

    return( -1 );
  }
  if( *data_area_descriptor != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: invalid data area descriptor value already set.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       internal_physical_volume->data_area_descriptors_array,
       &number_of_data_area_descriptors,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of data area descriptors from array.",
     function );

    return( -1 );
  }
  for( data_area_descriptor_index = 0;
       data_area_descriptor_index < number_of_data_area_descriptors;
       data_area_descriptor_index++ )
  {
    if( libcdata_array_get_entry_by_index(
         internal_physical_volume->data_area_descriptors_array,
         data_area_descriptor_index,
         (intptr_t **) data_area_descriptor,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_GET_FAILED,
       "%s: unable to retrieve data area descriptor: %d.",
       function,
       data_area_descriptor_index );

      return( -1 );
    }
    if( *data_area_descriptor == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
       "%s: missing data area descriptor: %d.",
       function,
       data_area_descriptor_index );

      return( -1 );
    }
    if( ( *data_area_descriptor )->size == 0 )
    {
      return( 1 );
    }
    offset -= ( *data_area_descriptor )->size;
  }
  return( 0 );
}

/* Retrieves the number of metadata area descriptors
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_number_of_metadata_area_descriptors(
     libvslvm_physical_volume_t *physical_volume,
     int *number_of_data_area_descriptors,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_number_of_metadata_area_descriptors";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( libcdata_array_get_number_of_entries(
       internal_physical_volume->metadata_area_descriptors_array,
       number_of_data_area_descriptors,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of metadata area descriptors from array.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Retrieves a specific metadata area descriptor
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_get_metadata_area_descriptor(
     libvslvm_physical_volume_t *physical_volume,
     int data_area_descriptor_index,
     libvslvm_data_area_descriptor_t **data_area_descriptor,
     libcerror_error_t **error )
{
  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_get_metadata_area_descriptor";

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

  if( libcdata_array_get_entry_by_index(
       internal_physical_volume->metadata_area_descriptors_array,
       data_area_descriptor_index,
       (intptr_t **) data_area_descriptor,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve metadata area descriptor: %d.",
     function,
     data_area_descriptor_index );

    return( -1 );
  }
  return( 1 );
}

/* TODO move function into libvslvm_physical_volume_label.c */

/* Reads a physical volume label
 * Returns 1 if successful, 0 if not found or -1 on error
 */
int libvslvm_internal_physical_volume_read_label_data(
     libvslvm_internal_physical_volume_t *internal_physical_volume,
     const uint8_t *data,
     size_t data_size,
     libcerror_error_t **error )
{
  libvslvm_data_area_descriptor_t *data_area_descriptor = NULL;
  static char *function                                 = "libvslvm_internal_physical_volume_read_label_data";
  size_t data_offset                                    = 0;
  uint64_t offset                                       = 0;
  uint64_t size                                         = 0;
  uint32_t calculated_checksum                          = 0;
  uint32_t stored_checksum                              = 0;
  int entry_index                                       = 0;
  int result                                            = 0;

#if defined( HAVE_DEBUG_OUTPUT )
  uint64_t value_64bit                                  = 0;
  uint32_t value_32bit                                  = 0;
#endif

  if( internal_physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  if( data == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid data.",
     function );

    return( -1 );
  }
  if( ( data_size == 0 )
   || ( data_size > (size_t) SSIZE_MAX ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid data size value out of bounds.",
     function );

    return( -1 );
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: physical volume label data:\n",
     function );
    libcnotify_print_data(
     data,
     512,
     LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
  }
#endif
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: physical volume label header:\n",
     function );
    libcnotify_print_data(
     data,
     sizeof( vslvm_physical_volume_label_header_t ),
     0 );
  }
#endif
  if( memory_compare(
       ( (vslvm_physical_volume_label_header_t *) data )->signature,
       vslvm_physical_volume_label_signature,
       8 ) != 0 )
  {
    return( 0 );
  }
  byte_stream_copy_to_uint32_little_endian(
   ( (vslvm_physical_volume_label_header_t *) data )->checksum,
   stored_checksum );

#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: signature\t\t: %c%c%c%c%c%c%c%c\n",
     function,
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 0 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 1 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 2 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 3 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 4 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 5 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 6 ],
     ( (vslvm_physical_volume_label_header_t *) data )->signature[ 7 ] );

    byte_stream_copy_to_uint64_little_endian(
     ( (vslvm_physical_volume_label_header_t *) data )->sector_number,
     value_64bit );
    libcnotify_printf(
     "%s: sector number\t: %" PRIu64 "\n",
     function,
     value_64bit );

    libcnotify_printf(
     "%s: checksum\t\t: 0x%08" PRIx32 "\n",
     function,
     stored_checksum );

    byte_stream_copy_to_uint32_little_endian(
     ( (vslvm_physical_volume_label_header_t *) data )->data_offset,
     value_32bit );
    libcnotify_printf(
     "%s: data offset\t\t: 0x%08" PRIx32 "\n",
     function,
     value_32bit );

    libcnotify_printf(
     "%s: type indicator\t: %c%c%c%c%c%c%c%c\n",
     function,
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 0 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 1 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 2 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 3 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 4 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 5 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 6 ],
     ( (vslvm_physical_volume_label_header_t *) data )->type_indicator[ 7 ] );

    libcnotify_printf(
     "\n" );
  }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

  if( libvslvm_checksum_calculate_weak_crc32(
       &calculated_checksum,
       &( data[ 20 ] ),
       512 - 20,
       0xf597a6cfUL,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to calculate CRC-32.",
     function );

    goto on_error;
  }
  if( ( stored_checksum != 0 )
   && ( stored_checksum != calculated_checksum ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_INPUT,
     LIBCERROR_INPUT_ERROR_CHECKSUM_MISMATCH,
     "%s: mismatch in checksum ( 0x%08" PRIx32 " != 0x%08" PRIx32 " ).",
     function,
     stored_checksum,
     calculated_checksum );

    goto on_error;
  }
  data_offset = sizeof( vslvm_physical_volume_label_header_t );

#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: physical volume header data:\n",
     function );
    libcnotify_print_data(
     &( data[ data_offset ] ),
     sizeof( vslvm_physical_volume_header_t ),
     0 );
  }
#endif
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: identifier\t\t: %c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",
     function,
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 0 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 1 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 2 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 3 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 4 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 5 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 6 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 7 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 8 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 9 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 10 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 11 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 12 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 13 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 14 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 15 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 16 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 17 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 18 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 19 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 20 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 21 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 22 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 23 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 24 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 25 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 26 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 27 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 28 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 29 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 30 ],
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->identifier[ 31 ] );

    byte_stream_copy_to_uint64_little_endian(
     ( (vslvm_physical_volume_header_t *) &( data[ data_offset ] ) )->volume_size,
     value_64bit );
    libcnotify_printf(
     "%s: volume size\t\t: %" PRIu64 "\n",
     function,
     value_64bit );

    libcnotify_printf(
     "\n" );
  }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

  data_offset += sizeof( vslvm_physical_volume_header_t );

  do
  {
    if( data_offset >= ( data_size - sizeof( vslvm_data_area_descriptor_t ) ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
       LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid data offset value out of bounds.",
       function );

      goto on_error;
    }
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      libcnotify_printf(
       "%s: data area descriptor data:\n",
       function );
      libcnotify_print_data(
       &( data[ data_offset ] ),
       sizeof( vslvm_data_area_descriptor_t ),
       0 );
    }
#endif
    result = memory_compare(
              &( data[ data_offset ] ),
              vslvm_empty_data_area_descriptor,
              sizeof( vslvm_data_area_descriptor_t ) );

    if( result != 0 )
    {
      byte_stream_copy_to_uint64_little_endian(
       ( (vslvm_data_area_descriptor_t *) &( data[ data_offset ] ) )->offset,
       offset );

      byte_stream_copy_to_uint64_little_endian(
       ( (vslvm_data_area_descriptor_t *) &( data[ data_offset ] ) )->size,
       size );

#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: data area offset\t: 0x%08" PRIx64 "\n",
         function,
         offset );

        libcnotify_printf(
         "%s: data area size\t: %" PRIu64 "\n",
         function,
         size );

        libcnotify_printf(
         "\n" );
      }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

      if( libvslvm_data_area_descriptor_initialize(
           &data_area_descriptor,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
         "%s: unable to create data area descriptor.",
         function );

        goto on_error;
      }
      if( libvslvm_data_area_descriptor_set(
           data_area_descriptor,
           (off64_t) offset,
           (size64_t) size,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_SET_FAILED,
         "%s: unable to set data area descriptor.",
         function );

        goto on_error;
      }
      if( libcdata_array_append_entry(
           internal_physical_volume->data_area_descriptors_array,
           &entry_index,
           (intptr_t *) data_area_descriptor,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
         "%s: unable to append entry to data area descriptors array.",
         function );

        goto on_error;
      }
      data_area_descriptor = NULL;
    }
    data_offset += sizeof( vslvm_data_area_descriptor_t );
  }
  while( result != 0 );

  do
  {
    if( data_offset >= ( data_size - sizeof( vslvm_data_area_descriptor_t ) ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
       LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid data offset value out of bounds.",
       function );

      goto on_error;
    }
#if defined( HAVE_DEBUG_OUTPUT )
    if( libcnotify_verbose != 0 )
    {
      libcnotify_printf(
       "%s: metadata area descriptor data:\n",
       function );
      libcnotify_print_data(
       &( data[ data_offset ] ),
       sizeof( vslvm_data_area_descriptor_t ),
       0 );
    }
#endif
    result = memory_compare(
              &( data[ data_offset ] ),
              vslvm_empty_data_area_descriptor,
              sizeof( vslvm_data_area_descriptor_t ) );

    if( result != 0 )
    {
      byte_stream_copy_to_uint64_little_endian(
       ( (vslvm_data_area_descriptor_t *) &( data[ data_offset ] ) )->offset,
       offset );

      byte_stream_copy_to_uint64_little_endian(
       ( (vslvm_data_area_descriptor_t *) &( data[ data_offset ] ) )->size,
       size );

#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: metadata area offset\t: 0x%08" PRIx64 "\n",
         function,
         offset );

        libcnotify_printf(
         "%s: metadata area size\t: %" PRIu64 "\n",
         function,
         size );

        libcnotify_printf(
         "\n" );
      }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

      if( libvslvm_data_area_descriptor_initialize(
           &data_area_descriptor,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
         "%s: unable to create data area descriptor.",
         function );

        goto on_error;
      }
      if( libvslvm_data_area_descriptor_set(
           data_area_descriptor,
           (off64_t) offset,
           (size64_t) size,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_SET_FAILED,
         "%s: unable to set data area descriptor.",
         function );

        goto on_error;
      }
      if( libcdata_array_append_entry(
           internal_physical_volume->metadata_area_descriptors_array,
           &entry_index,
           (intptr_t *) data_area_descriptor,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
         "%s: unable to append entry to metadata area descriptors array.",
         function );

        goto on_error;
      }
      data_area_descriptor = NULL;
    }
    data_offset += sizeof( vslvm_data_area_descriptor_t );
  }
  while( result != 0 );

  return( 1 );

on_error:
  if( data_area_descriptor != NULL )
  {
    libvslvm_data_area_descriptor_free(
     &data_area_descriptor,
     NULL );
  }
  libcdata_array_empty(
   internal_physical_volume->metadata_area_descriptors_array,
   (int (*)(intptr_t **, libcerror_error_t **)) &libvslvm_data_area_descriptor_free,
   NULL );

  libcdata_array_empty(
   internal_physical_volume->data_area_descriptors_array,
   (int (*)(intptr_t **, libcerror_error_t **)) &libvslvm_data_area_descriptor_free,
   NULL );

  return( -1 );
}

/* Reads a physical volume label
 * Returns 1 if successful, 0 if not found or -1 on error
 */
int libvslvm_physical_volume_read_label_file_io_pool(
     libvslvm_physical_volume_t *physical_volume,
     libbfio_pool_t *file_io_pool,
     int file_io_pool_entry,
     off64_t file_offset,
     libcerror_error_t **error )
{
  uint8_t physical_volume_label_data[ 512 ];

  libvslvm_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                         = "libvslvm_physical_volume_read_label_file_io_pool";
  ssize_t read_count                                            = 0;
  int result                                                    = 0;

  if( physical_volume == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid physical volume.",
     function );

    return( -1 );
  }
  internal_physical_volume = (libvslvm_internal_physical_volume_t *) physical_volume;

#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: reading physical volume label at offset: %" PRIi64 " (0x%08" PRIx64 ")\n",
     function,
     file_offset,
     file_offset );
  }
#endif
  read_count = libbfio_pool_read_buffer_at_offset(
                file_io_pool,
                file_io_pool_entry,
                physical_volume_label_data,
                512,
                file_offset,
                error );

  if( read_count != (ssize_t) 512 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read physical volume label at offset %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     file_offset,
     file_offset );

    return( -1 );
  }
  result = libvslvm_internal_physical_volume_read_label_data(
            internal_physical_volume,
            physical_volume_label_data,
            512,
            error );

  if( result == -1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read physical volume label.",
     function );

    return( -1 );
  }
  return( result );
}

/* Reads the physical volume
 * Callback function for the physical volume files list
 * Returns 1 if successful or -1 on error
 */
int libvslvm_physical_volume_read_element_data(
     intptr_t *data_handle LIBVSLVM_ATTRIBUTE_UNUSED,
     libbfio_pool_t *file_io_pool,
     libfdata_list_element_t *element,
     libfdata_cache_t *cache,
     int file_io_pool_entry,
     off64_t physical_volume_offset,
     size64_t physical_volume_size LIBVSLVM_ATTRIBUTE_UNUSED,
     uint32_t element_flags LIBVSLVM_ATTRIBUTE_UNUSED,
     uint8_t read_flags LIBVSLVM_ATTRIBUTE_UNUSED,
     libcerror_error_t **error )
{
  libvslvm_physical_volume_t *physical_volume = NULL;
  static char *function                       = "libvslvm_physical_volume_read_element_data";
  off64_t label_offset                        = 0;
  int result                                  = 0;

  LIBVSLVM_UNREFERENCED_PARAMETER( data_handle )
  LIBVSLVM_UNREFERENCED_PARAMETER( physical_volume_size )
  LIBVSLVM_UNREFERENCED_PARAMETER( element_flags )
  LIBVSLVM_UNREFERENCED_PARAMETER( read_flags )

  if( libvslvm_physical_volume_initialize(
       &physical_volume,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create physical volume.",
     function );

    goto on_error;
  }
  /* The physical volume label can be stored in one of the first 4 sectors
   */
  label_offset = 0;

  while( label_offset < 2048 )
  {
    result = libvslvm_physical_volume_read_label_file_io_pool(
        physical_volume,
        file_io_pool,
        file_io_pool_entry,
        physical_volume_offset + label_offset,
        error );

    if( result == -1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_IO,
       LIBCERROR_IO_ERROR_READ_FAILED,
       "%s: unable to read physical volume label at offset: %" PRIi64 ".",
       function,
       physical_volume_offset + label_offset );

      goto on_error;
    }
    else if( result != 0 )
    {
      break;
    }
    label_offset += 512;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read physical volume label.",
     function );

    goto on_error;
  }
  if( libfdata_list_element_set_element_value(
       element,
       (intptr_t *) file_io_pool,
       cache,
       (intptr_t *) physical_volume,
       (int (*)(intptr_t **, libcerror_error_t **)) &libvslvm_internal_physical_volume_free,
       LIBFDATA_LIST_ELEMENT_VALUE_FLAG_MANAGED,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to set physical volume as element value.",
     function );

    goto on_error;
  }
  return( 1 );

on_error:
  if( physical_volume != NULL )
  {
    libvslvm_internal_physical_volume_free(
     (libvslvm_internal_physical_volume_t **) &physical_volume,
     NULL );
  }
  return( -1 );
}


Coverage Report

Created: 2024-06-12 07:07