/src/libfvde/libfvde/libfvde_logical_volume_descriptor.c

Source
/*
 * Logical volume descriptor functions
 *
 * Copyright (C) 2011-2024, Omar Choudary <choudary.omar@gmail.com>
 *                          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 <memory.h>
#include <types.h>

#include "libfvde_libcdata.h"
#include "libfvde_libcerror.h"
#include "libfvde_libuna.h"
#include "libfvde_logical_volume_descriptor.h"
#include "libfvde_segment_descriptor.h"

/* Creates logical volume descriptor
 * Make sure the value logical_volume_descriptor is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_initialize(
     libfvde_logical_volume_descriptor_t **logical_volume_descriptor,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_initialize";

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

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

    return( -1 );
  }
  *logical_volume_descriptor = memory_allocate_structure(
                                libfvde_logical_volume_descriptor_t );

  if( *logical_volume_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to logical volume descriptor.",
     function );

    goto on_error;
  }
  if( memory_set(
       *logical_volume_descriptor,
       0,
       sizeof( libfvde_logical_volume_descriptor_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear logical volume descriptor.",
     function );

    memory_free(
     *logical_volume_descriptor );

    *logical_volume_descriptor = NULL;

    return( -1 );
  }
  if( libcdata_array_initialize(
       &( ( *logical_volume_descriptor )->segment_descriptors ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create segment descriptors array.",
     function );

    goto on_error;
  }
  return( 1 );

on_error:
  if( *logical_volume_descriptor != NULL )
  {
    memory_free(
     *logical_volume_descriptor );

    *logical_volume_descriptor = NULL;
  }
  return( -1 );
}

/* Frees logical volume descriptor
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_free(
     libfvde_logical_volume_descriptor_t **logical_volume_descriptor,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_free";
  int result            = 1;

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

    return( -1 );
  }
  if( *logical_volume_descriptor != NULL )
  {
    if( ( *logical_volume_descriptor )->name != NULL )
    {
      memory_free(
       ( *logical_volume_descriptor )->name );
    }
    if( libcdata_array_free(
         &( ( *logical_volume_descriptor )->segment_descriptors ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libfvde_segment_descriptor_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free segment descriptors array.",
       function );

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

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

/* Retrieves the identifier
 * The identifier is a UUID and is 16 bytes of size
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_identifier(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     uint8_t *uuid_data,
     size_t uuid_data_size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_identifier";

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

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

    return( -1 );
  }
  if( ( uuid_data_size < 16 )
   || ( uuid_data_size > (size_t) SSIZE_MAX ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid UUID data size value out of bounds.",
     function );

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

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

/* Retrieves the family identifier
 * The identifier is a UUID and is 16 bytes of size
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_family_identifier(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     uint8_t *uuid_data,
     size_t uuid_data_size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_family_identifier";

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

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

    return( -1 );
  }
  if( ( uuid_data_size < 16 )
   || ( uuid_data_size > (size_t) SSIZE_MAX ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid UUID data size value out of bounds.",
     function );

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

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

/* Retrieves the size of the UTF-8 encoded volume group name
 * The returned size includes the end of string character
 * Returns 1 if successful, 0 if not available or -1 on error
 */
int libfvde_logical_volume_descriptor_get_utf8_name_size(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     size_t *utf8_string_size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_utf8_name_size";

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

    return( -1 );
  }
  if( ( logical_volume_descriptor->name == NULL )
   || ( logical_volume_descriptor->name_size == 0 ) )
  {
    return( 0 );
  }
  if( libuna_utf8_string_size_from_utf8_stream(
       logical_volume_descriptor->name,
       logical_volume_descriptor->name_size,
       utf8_string_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve UTF-8 string size.",
     function );

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

/* Retrieves the UTF-8 encoded volume group name
 * The size should include the end of string character
 * Returns 1 if successful, 0 if not available or -1 on error
 */
int libfvde_logical_volume_descriptor_get_utf8_name(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     uint8_t *utf8_string,
     size_t utf8_string_size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_utf8_name";

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

    return( -1 );
  }
  if( ( logical_volume_descriptor->name == NULL )
   || ( logical_volume_descriptor->name_size == 0 ) )
  {
    return( 0 );
  }
  if( libuna_utf8_string_copy_from_utf8_stream(
       utf8_string,
       utf8_string_size,
       logical_volume_descriptor->name,
       logical_volume_descriptor->name_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve UTF-8 string.",
     function );

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

/* Retrieves the size of the UTF-16 encoded volume group name
 * The returned size includes the end of string character
 * Returns 1 if successful, 0 if not available or -1 on error
 */
int libfvde_logical_volume_descriptor_get_utf16_name_size(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     size_t *utf16_string_size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_utf16_name_size";

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

    return( -1 );
  }
  if( ( logical_volume_descriptor->name == NULL )
   || ( logical_volume_descriptor->name_size == 0 ) )
  {
    return( 0 );
  }
  if( libuna_utf16_string_size_from_utf8_stream(
       logical_volume_descriptor->name,
       logical_volume_descriptor->name_size,
       utf16_string_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve UTF-16 string size.",
     function );

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

/* Retrieves the UTF-16 encoded volume group name
 * The size should include the end of string character
 * Returns 1 if successful, 0 if not available or -1 on error
 */
int libfvde_logical_volume_descriptor_get_utf16_name(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     uint16_t *utf16_string,
     size_t utf16_string_size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_utf16_name";

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

    return( -1 );
  }
  if( ( logical_volume_descriptor->name == NULL )
   || ( logical_volume_descriptor->name_size == 0 ) )
  {
    return( 0 );
  }
  if( libuna_utf16_string_copy_from_utf8_stream(
       utf16_string,
       utf16_string_size,
       logical_volume_descriptor->name,
       logical_volume_descriptor->name_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve UTF-16 string.",
     function );

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

/* Retrieves the size
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_size(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     size64_t *size,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_size";

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

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

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

  return( 1 );
}

/* Retrieves the first block number
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_first_block_number(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     uint16_t *volume_index,
     uint64_t *block_number,
     libcerror_error_t **error )
{
  libfvde_segment_descriptor_t *segment_descriptor = NULL;
  static char *function                            = "libfvde_logical_volume_descriptor_get_first_block_number";

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

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

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

    return( -1 );
  }
  if( libcdata_array_get_entry_by_index(
       logical_volume_descriptor->segment_descriptors,
       0,
       (intptr_t **) &segment_descriptor,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment descriptor: 0 from array.",
     function );

    return( -1 );
  }
  if( segment_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing segment descriptor: 0.",
     function );

    return( -1 );
  }
  *volume_index = segment_descriptor->physical_volume_index;
  *block_number = logical_volume_descriptor->base_physical_block_number + segment_descriptor->physical_block_number;

  return( 1 );
}

/* Retrieves the last block number
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_last_block_number(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     uint16_t *volume_index,
     uint64_t *block_number,
     libcerror_error_t **error )
{
  libfvde_segment_descriptor_t *segment_descriptor = NULL;
  static char *function                            = "libfvde_logical_volume_descriptor_get_last_block_number";
  int number_of_segment_descriptors                = 0;

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

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

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

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       logical_volume_descriptor->segment_descriptors,
       &number_of_segment_descriptors,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of segment descriptors from array.",
     function );

    return( -1 );
  }
  number_of_segment_descriptors -= 1;

  if( libcdata_array_get_entry_by_index(
       logical_volume_descriptor->segment_descriptors,
       number_of_segment_descriptors,
       (intptr_t **) &segment_descriptor,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment descriptor: %d from array.",
     function,
     number_of_segment_descriptors );

    return( -1 );
  }
  if( segment_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: missing segment descriptor: %d.",
     function,
     number_of_segment_descriptors );

    return( -1 );
  }
  *volume_index = segment_descriptor->physical_volume_index;
  *block_number = logical_volume_descriptor->base_physical_block_number + segment_descriptor->physical_block_number + segment_descriptor->number_of_blocks;

  return( 1 );
}

/* Retrieves the number of segment descriptors
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_number_of_segment_descriptors(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     int *number_of_segment_descriptors,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_number_of_segment_descriptors";

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

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       logical_volume_descriptor->segment_descriptors,
       number_of_segment_descriptors,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of segment descriptors from array.",
     function );

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

/* Retrieves a specific segment descriptor
 * Returns 1 if successful or -1 on error
 */
int libfvde_logical_volume_descriptor_get_segment_descriptor_by_index(
     libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
     int segment_index,
     libfvde_segment_descriptor_t **segment_descriptor,
     libcerror_error_t **error )
{
  static char *function = "libfvde_logical_volume_descriptor_get_segment_descriptor_by_index";

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

    return( -1 );
  }
  if( libcdata_array_get_entry_by_index(
       logical_volume_descriptor->segment_descriptors,
       segment_index,
       (intptr_t **) segment_descriptor,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve segment descriptor: %d from array.",
     function,
     segment_index );

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

Coverage Report

Created: 2025-12-05 07:13

Line	Count	Source
1		/*
2		* Logical volume descriptor functions
3		*
4		* Copyright (C) 2011-2024, Omar Choudary <choudary.omar@gmail.com>
5		* Joachim Metz <joachim.metz@gmail.com>
6		*
7		* Refer to AUTHORS for acknowledgements.
8		*
9		* This program is free software: you can redistribute it and/or modify
10		* it under the terms of the GNU Lesser General Public License as published by
11		* the Free Software Foundation, either version 3 of the License, or
12		* (at your option) any later version.
13		*
14		* This program is distributed in the hope that it will be useful,
15		* but WITHOUT ANY WARRANTY; without even the implied warranty of
16		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17		* GNU General Public License for more details.
18		*
19		* You should have received a copy of the GNU Lesser General Public License
20		* along with this program. If not, see <https://www.gnu.org/licenses/>.
21		*/
22
23		#include <common.h>
24		#include <memory.h>
25		#include <types.h>
26
27		#include "libfvde_libcdata.h"
28		#include "libfvde_libcerror.h"
29		#include "libfvde_libuna.h"
30		#include "libfvde_logical_volume_descriptor.h"
31		#include "libfvde_segment_descriptor.h"
32
33		/* Creates logical volume descriptor
34		* Make sure the value logical_volume_descriptor is referencing, is set to NULL
35		* Returns 1 if successful or -1 on error
36		*/
37		int libfvde_logical_volume_descriptor_initialize(
38		libfvde_logical_volume_descriptor_t **logical_volume_descriptor,
39		libcerror_error_t **error )
40	0	{
41	0	static char *function = "libfvde_logical_volume_descriptor_initialize";
42
43	0	if( logical_volume_descriptor == NULL )
44	0	{
45	0	libcerror_error_set(
46	0	error,
47	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
48	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
49	0	"%s: invalid logical volume descriptor.",
50	0	function );
51
52	0	return( -1 );
53	0	}
54	0	if( *logical_volume_descriptor != NULL )
55	0	{
56	0	libcerror_error_set(
57	0	error,
58	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
59	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
60	0	"%s: invalid logical volume descriptor value already set.",
61	0	function );
62
63	0	return( -1 );
64	0	}
65	0	*logical_volume_descriptor = memory_allocate_structure(
66	0	libfvde_logical_volume_descriptor_t );
67
68	0	if( *logical_volume_descriptor == NULL )
69	0	{
70	0	libcerror_error_set(
71	0	error,
72	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
73	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
74	0	"%s: unable to logical volume descriptor.",
75	0	function );
76
77	0	goto on_error;
78	0	}
79	0	if( memory_set(
80	0	*logical_volume_descriptor,
81	0	0,
82	0	sizeof( libfvde_logical_volume_descriptor_t ) ) == NULL )
83	0	{
84	0	libcerror_error_set(
85	0	error,
86	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
87	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
88	0	"%s: unable to clear logical volume descriptor.",
89	0	function );
90
91	0	memory_free(
92	0	*logical_volume_descriptor );
93
94	0	*logical_volume_descriptor = NULL;
95
96	0	return( -1 );
97	0	}
98	0	if( libcdata_array_initialize(
99	0	&( ( *logical_volume_descriptor )->segment_descriptors ),
100	0	0,
101	0	error ) != 1 )
102	0	{
103	0	libcerror_error_set(
104	0	error,
105	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
106	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
107	0	"%s: unable to create segment descriptors array.",
108	0	function );
109
110	0	goto on_error;
111	0	}
112	0	return( 1 );
113
114	0	on_error:
115	0	if( *logical_volume_descriptor != NULL )
116	0	{
117	0	memory_free(
118	0	*logical_volume_descriptor );
119
120	0	*logical_volume_descriptor = NULL;
121	0	}
122	0	return( -1 );
123	0	}
124
125		/* Frees logical volume descriptor
126		* Returns 1 if successful or -1 on error
127		*/
128		int libfvde_logical_volume_descriptor_free(
129		libfvde_logical_volume_descriptor_t **logical_volume_descriptor,
130		libcerror_error_t **error )
131	0	{
132	0	static char *function = "libfvde_logical_volume_descriptor_free";
133	0	int result = 1;
134
135	0	if( logical_volume_descriptor == NULL )
136	0	{
137	0	libcerror_error_set(
138	0	error,
139	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
140	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
141	0	"%s: invalid logical volume descriptor.",
142	0	function );
143
144	0	return( -1 );
145	0	}
146	0	if( *logical_volume_descriptor != NULL )
147	0	{
148	0	if( ( *logical_volume_descriptor )->name != NULL )
149	0	{
150	0	memory_free(
151	0	( *logical_volume_descriptor )->name );
152	0	}
153	0	if( libcdata_array_free(
154	0	&( ( *logical_volume_descriptor )->segment_descriptors ),
155	0	(int ()(intptr_t , libcerror_error_t *)) &libfvde_segment_descriptor_free,
156	0	error ) != 1 )
157	0	{
158	0	libcerror_error_set(
159	0	error,
160	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
161	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
162	0	"%s: unable to free segment descriptors array.",
163	0	function );
164
165	0	result = -1;
166	0	}
167	0	memory_free(
168	0	*logical_volume_descriptor );
169
170	0	*logical_volume_descriptor = NULL;
171	0	}
172	0	return( result );
173	0	}
174
175		/* Retrieves the identifier
176		* The identifier is a UUID and is 16 bytes of size
177		* Returns 1 if successful or -1 on error
178		*/
179		int libfvde_logical_volume_descriptor_get_identifier(
180		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
181		uint8_t *uuid_data,
182		size_t uuid_data_size,
183		libcerror_error_t **error )
184	0	{
185	0	static char *function = "libfvde_logical_volume_descriptor_get_identifier";
186
187	0	if( logical_volume_descriptor == NULL )
188	0	{
189	0	libcerror_error_set(
190	0	error,
191	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
192	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
193	0	"%s: invalid logical volume descriptor.",
194	0	function );
195
196	0	return( -1 );
197	0	}
198	0	if( uuid_data == NULL )
199	0	{
200	0	libcerror_error_set(
201	0	error,
202	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
203	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
204	0	"%s: invalid UUID data.",
205	0	function );
206
207	0	return( -1 );
208	0	}
209	0	if( ( uuid_data_size < 16 )
210	0	\|\| ( uuid_data_size > (size_t) SSIZE_MAX ) )
211	0	{
212	0	libcerror_error_set(
213	0	error,
214	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
215	0	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
216	0	"%s: invalid UUID data size value out of bounds.",
217	0	function );
218
219	0	return( -1 );
220	0	}
221	0	if( memory_copy(
222	0	uuid_data,
223	0	logical_volume_descriptor->identifier,
224	0	16 ) == NULL )
225	0	{
226	0	libcerror_error_set(
227	0	error,
228	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
229	0	LIBCERROR_MEMORY_ERROR_COPY_FAILED,
230	0	"%s: unable to copy identifier.",
231	0	function );
232
233	0	return( -1 );
234	0	}
235	0	return( 1 );
236	0	}
237
238		/* Retrieves the family identifier
239		* The identifier is a UUID and is 16 bytes of size
240		* Returns 1 if successful or -1 on error
241		*/
242		int libfvde_logical_volume_descriptor_get_family_identifier(
243		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
244		uint8_t *uuid_data,
245		size_t uuid_data_size,
246		libcerror_error_t **error )
247	0	{
248	0	static char *function = "libfvde_logical_volume_descriptor_get_family_identifier";
249
250	0	if( logical_volume_descriptor == NULL )
251	0	{
252	0	libcerror_error_set(
253	0	error,
254	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
255	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
256	0	"%s: invalid logical volume descriptor.",
257	0	function );
258
259	0	return( -1 );
260	0	}
261	0	if( uuid_data == NULL )
262	0	{
263	0	libcerror_error_set(
264	0	error,
265	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
266	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
267	0	"%s: invalid UUID data.",
268	0	function );
269
270	0	return( -1 );
271	0	}
272	0	if( ( uuid_data_size < 16 )
273	0	\|\| ( uuid_data_size > (size_t) SSIZE_MAX ) )
274	0	{
275	0	libcerror_error_set(
276	0	error,
277	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
278	0	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
279	0	"%s: invalid UUID data size value out of bounds.",
280	0	function );
281
282	0	return( -1 );
283	0	}
284	0	if( memory_copy(
285	0	uuid_data,
286	0	logical_volume_descriptor->family_identifier,
287	0	16 ) == NULL )
288	0	{
289	0	libcerror_error_set(
290	0	error,
291	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
292	0	LIBCERROR_MEMORY_ERROR_COPY_FAILED,
293	0	"%s: unable to copy family identifier.",
294	0	function );
295
296	0	return( -1 );
297	0	}
298	0	return( 1 );
299	0	}
300
301		/* Retrieves the size of the UTF-8 encoded volume group name
302		* The returned size includes the end of string character
303		* Returns 1 if successful, 0 if not available or -1 on error
304		*/
305		int libfvde_logical_volume_descriptor_get_utf8_name_size(
306		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
307		size_t *utf8_string_size,
308		libcerror_error_t **error )
309	0	{
310	0	static char *function = "libfvde_logical_volume_descriptor_get_utf8_name_size";
311
312	0	if( logical_volume_descriptor == NULL )
313	0	{
314	0	libcerror_error_set(
315	0	error,
316	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
317	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
318	0	"%s: invalid logical volume descriptor.",
319	0	function );
320
321	0	return( -1 );
322	0	}
323	0	if( ( logical_volume_descriptor->name == NULL )
324	0	\|\| ( logical_volume_descriptor->name_size == 0 ) )
325	0	{
326	0	return( 0 );
327	0	}
328	0	if( libuna_utf8_string_size_from_utf8_stream(
329	0	logical_volume_descriptor->name,
330	0	logical_volume_descriptor->name_size,
331	0	utf8_string_size,
332	0	error ) != 1 )
333	0	{
334	0	libcerror_error_set(
335	0	error,
336	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
337	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
338	0	"%s: unable to retrieve UTF-8 string size.",
339	0	function );
340
341	0	return( -1 );
342	0	}
343	0	return( 1 );
344	0	}
345
346		/* Retrieves the UTF-8 encoded volume group name
347		* The size should include the end of string character
348		* Returns 1 if successful, 0 if not available or -1 on error
349		*/
350		int libfvde_logical_volume_descriptor_get_utf8_name(
351		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
352		uint8_t *utf8_string,
353		size_t utf8_string_size,
354		libcerror_error_t **error )
355	0	{
356	0	static char *function = "libfvde_logical_volume_descriptor_get_utf8_name";
357
358	0	if( logical_volume_descriptor == NULL )
359	0	{
360	0	libcerror_error_set(
361	0	error,
362	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
363	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
364	0	"%s: invalid logical volume descriptor.",
365	0	function );
366
367	0	return( -1 );
368	0	}
369	0	if( ( logical_volume_descriptor->name == NULL )
370	0	\|\| ( logical_volume_descriptor->name_size == 0 ) )
371	0	{
372	0	return( 0 );
373	0	}
374	0	if( libuna_utf8_string_copy_from_utf8_stream(
375	0	utf8_string,
376	0	utf8_string_size,
377	0	logical_volume_descriptor->name,
378	0	logical_volume_descriptor->name_size,
379	0	error ) != 1 )
380	0	{
381	0	libcerror_error_set(
382	0	error,
383	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
384	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
385	0	"%s: unable to retrieve UTF-8 string.",
386	0	function );
387
388	0	return( -1 );
389	0	}
390	0	return( 1 );
391	0	}
392
393		/* Retrieves the size of the UTF-16 encoded volume group name
394		* The returned size includes the end of string character
395		* Returns 1 if successful, 0 if not available or -1 on error
396		*/
397		int libfvde_logical_volume_descriptor_get_utf16_name_size(
398		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
399		size_t *utf16_string_size,
400		libcerror_error_t **error )
401	0	{
402	0	static char *function = "libfvde_logical_volume_descriptor_get_utf16_name_size";
403
404	0	if( logical_volume_descriptor == NULL )
405	0	{
406	0	libcerror_error_set(
407	0	error,
408	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
409	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
410	0	"%s: invalid logical volume descriptor.",
411	0	function );
412
413	0	return( -1 );
414	0	}
415	0	if( ( logical_volume_descriptor->name == NULL )
416	0	\|\| ( logical_volume_descriptor->name_size == 0 ) )
417	0	{
418	0	return( 0 );
419	0	}
420	0	if( libuna_utf16_string_size_from_utf8_stream(
421	0	logical_volume_descriptor->name,
422	0	logical_volume_descriptor->name_size,
423	0	utf16_string_size,
424	0	error ) != 1 )
425	0	{
426	0	libcerror_error_set(
427	0	error,
428	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
429	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
430	0	"%s: unable to retrieve UTF-16 string size.",
431	0	function );
432
433	0	return( -1 );
434	0	}
435	0	return( 1 );
436	0	}
437
438		/* Retrieves the UTF-16 encoded volume group name
439		* The size should include the end of string character
440		* Returns 1 if successful, 0 if not available or -1 on error
441		*/
442		int libfvde_logical_volume_descriptor_get_utf16_name(
443		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
444		uint16_t *utf16_string,
445		size_t utf16_string_size,
446		libcerror_error_t **error )
447	0	{
448	0	static char *function = "libfvde_logical_volume_descriptor_get_utf16_name";
449
450	0	if( logical_volume_descriptor == NULL )
451	0	{
452	0	libcerror_error_set(
453	0	error,
454	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
455	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
456	0	"%s: invalid logical volume descriptor.",
457	0	function );
458
459	0	return( -1 );
460	0	}
461	0	if( ( logical_volume_descriptor->name == NULL )
462	0	\|\| ( logical_volume_descriptor->name_size == 0 ) )
463	0	{
464	0	return( 0 );
465	0	}
466	0	if( libuna_utf16_string_copy_from_utf8_stream(
467	0	utf16_string,
468	0	utf16_string_size,
469	0	logical_volume_descriptor->name,
470	0	logical_volume_descriptor->name_size,
471	0	error ) != 1 )
472	0	{
473	0	libcerror_error_set(
474	0	error,
475	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
476	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
477	0	"%s: unable to retrieve UTF-16 string.",
478	0	function );
479
480	0	return( -1 );
481	0	}
482	0	return( 1 );
483	0	}
484
485		/* Retrieves the size
486		* Returns 1 if successful or -1 on error
487		*/
488		int libfvde_logical_volume_descriptor_get_size(
489		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
490		size64_t *size,
491		libcerror_error_t **error )
492	0	{
493	0	static char *function = "libfvde_logical_volume_descriptor_get_size";
494
495	0	if( logical_volume_descriptor == NULL )
496	0	{
497	0	libcerror_error_set(
498	0	error,
499	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
500	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
501	0	"%s: invalid logical volume descriptor.",
502	0	function );
503
504	0	return( -1 );
505	0	}
506	0	if( size == NULL )
507	0	{
508	0	libcerror_error_set(
509	0	error,
510	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
511	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
512	0	"%s: invalid size.",
513	0	function );
514
515	0	return( -1 );
516	0	}
517	0	*size = logical_volume_descriptor->size;
518
519	0	return( 1 );
520	0	}
521
522		/* Retrieves the first block number
523		* Returns 1 if successful or -1 on error
524		*/
525		int libfvde_logical_volume_descriptor_get_first_block_number(
526		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
527		uint16_t *volume_index,
528		uint64_t *block_number,
529		libcerror_error_t **error )
530	0	{
531	0	libfvde_segment_descriptor_t *segment_descriptor = NULL;
532	0	static char *function = "libfvde_logical_volume_descriptor_get_first_block_number";
533
534	0	if( logical_volume_descriptor == NULL )
535	0	{
536	0	libcerror_error_set(
537	0	error,
538	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
539	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
540	0	"%s: invalid logical volume descriptor.",
541	0	function );
542
543	0	return( -1 );
544	0	}
545	0	if( volume_index == NULL )
546	0	{
547	0	libcerror_error_set(
548	0	error,
549	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
550	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
551	0	"%s: invalid volume index.",
552	0	function );
553
554	0	return( -1 );
555	0	}
556	0	if( block_number == NULL )
557	0	{
558	0	libcerror_error_set(
559	0	error,
560	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
561	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
562	0	"%s: invalid block number.",
563	0	function );
564
565	0	return( -1 );
566	0	}
567	0	if( libcdata_array_get_entry_by_index(
568	0	logical_volume_descriptor->segment_descriptors,
569	0	0,
570	0	(intptr_t **) &segment_descriptor,
571	0	error ) != 1 )
572	0	{
573	0	libcerror_error_set(
574	0	error,
575	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
576	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
577	0	"%s: unable to retrieve segment descriptor: 0 from array.",
578	0	function );
579
580	0	return( -1 );
581	0	}
582	0	if( segment_descriptor == NULL )
583	0	{
584	0	libcerror_error_set(
585	0	error,
586	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
587	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
588	0	"%s: missing segment descriptor: 0.",
589	0	function );
590
591	0	return( -1 );
592	0	}
593	0	*volume_index = segment_descriptor->physical_volume_index;
594	0	*block_number = logical_volume_descriptor->base_physical_block_number + segment_descriptor->physical_block_number;
595
596	0	return( 1 );
597	0	}
598
599		/* Retrieves the last block number
600		* Returns 1 if successful or -1 on error
601		*/
602		int libfvde_logical_volume_descriptor_get_last_block_number(
603		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
604		uint16_t *volume_index,
605		uint64_t *block_number,
606		libcerror_error_t **error )
607	0	{
608	0	libfvde_segment_descriptor_t *segment_descriptor = NULL;
609	0	static char *function = "libfvde_logical_volume_descriptor_get_last_block_number";
610	0	int number_of_segment_descriptors = 0;
611
612	0	if( logical_volume_descriptor == NULL )
613	0	{
614	0	libcerror_error_set(
615	0	error,
616	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
617	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
618	0	"%s: invalid logical volume descriptor.",
619	0	function );
620
621	0	return( -1 );
622	0	}
623	0	if( volume_index == NULL )
624	0	{
625	0	libcerror_error_set(
626	0	error,
627	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
628	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
629	0	"%s: invalid volume index.",
630	0	function );
631
632	0	return( -1 );
633	0	}
634	0	if( block_number == NULL )
635	0	{
636	0	libcerror_error_set(
637	0	error,
638	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
639	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
640	0	"%s: invalid block number.",
641	0	function );
642
643	0	return( -1 );
644	0	}
645	0	if( libcdata_array_get_number_of_entries(
646	0	logical_volume_descriptor->segment_descriptors,
647	0	&number_of_segment_descriptors,
648	0	error ) != 1 )
649	0	{
650	0	libcerror_error_set(
651	0	error,
652	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
653	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
654	0	"%s: unable to retrieve number of segment descriptors from array.",
655	0	function );
656
657	0	return( -1 );
658	0	}
659	0	number_of_segment_descriptors -= 1;
660
661	0	if( libcdata_array_get_entry_by_index(
662	0	logical_volume_descriptor->segment_descriptors,
663	0	number_of_segment_descriptors,
664	0	(intptr_t **) &segment_descriptor,
665	0	error ) != 1 )
666	0	{
667	0	libcerror_error_set(
668	0	error,
669	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
670	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
671	0	"%s: unable to retrieve segment descriptor: %d from array.",
672	0	function,
673	0	number_of_segment_descriptors );
674
675	0	return( -1 );
676	0	}
677	0	if( segment_descriptor == NULL )
678	0	{
679	0	libcerror_error_set(
680	0	error,
681	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
682	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
683	0	"%s: missing segment descriptor: %d.",
684	0	function,
685	0	number_of_segment_descriptors );
686
687	0	return( -1 );
688	0	}
689	0	*volume_index = segment_descriptor->physical_volume_index;
690	0	*block_number = logical_volume_descriptor->base_physical_block_number + segment_descriptor->physical_block_number + segment_descriptor->number_of_blocks;
691
692	0	return( 1 );
693	0	}
694
695		/* Retrieves the number of segment descriptors
696		* Returns 1 if successful or -1 on error
697		*/
698		int libfvde_logical_volume_descriptor_get_number_of_segment_descriptors(
699		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
700		int *number_of_segment_descriptors,
701		libcerror_error_t **error )
702	0	{
703	0	static char *function = "libfvde_logical_volume_descriptor_get_number_of_segment_descriptors";
704
705	0	if( logical_volume_descriptor == NULL )
706	0	{
707	0	libcerror_error_set(
708	0	error,
709	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
710	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
711	0	"%s: invalid logical volume descriptor.",
712	0	function );
713
714	0	return( -1 );
715	0	}
716	0	if( libcdata_array_get_number_of_entries(
717	0	logical_volume_descriptor->segment_descriptors,
718	0	number_of_segment_descriptors,
719	0	error ) != 1 )
720	0	{
721	0	libcerror_error_set(
722	0	error,
723	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
724	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
725	0	"%s: unable to retrieve number of segment descriptors from array.",
726	0	function );
727
728	0	return( -1 );
729	0	}
730	0	return( 1 );
731	0	}
732
733		/* Retrieves a specific segment descriptor
734		* Returns 1 if successful or -1 on error
735		*/
736		int libfvde_logical_volume_descriptor_get_segment_descriptor_by_index(
737		libfvde_logical_volume_descriptor_t *logical_volume_descriptor,
738		int segment_index,
739		libfvde_segment_descriptor_t **segment_descriptor,
740		libcerror_error_t **error )
741	0	{
742	0	static char *function = "libfvde_logical_volume_descriptor_get_segment_descriptor_by_index";
743
744	0	if( logical_volume_descriptor == NULL )
745	0	{
746	0	libcerror_error_set(
747	0	error,
748	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
749	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
750	0	"%s: invalid logical volume descriptor.",
751	0	function );
752
753	0	return( -1 );
754	0	}
755	0	if( libcdata_array_get_entry_by_index(
756	0	logical_volume_descriptor->segment_descriptors,
757	0	segment_index,
758	0	(intptr_t **) segment_descriptor,
759	0	error ) != 1 )
760	0	{
761	0	libcerror_error_set(
762	0	error,
763	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
764	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
765	0	"%s: unable to retrieve segment descriptor: %d from array.",
766	0	function,
767	0	segment_index );
768
769	0	return( -1 );
770	0	}
771	0	return( 1 );
772	0	}