/*

 * Section descriptor functions

 *

 * Copyright (C) 2006-2024, 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 <narrow_string.h>

#include <types.h>

#include "libewf_checksum.h"

#include "libewf_debug.h"

#include "libewf_definitions.h"

#include "libewf_libbfio.h"

#include "libewf_libcerror.h"

#include "libewf_libcnotify.h"

#include "libewf_section_descriptor.h"

#include "ewf_file_header.h"

#include "ewf_section.h"

/* Creates a section descriptor

 * Make sure the value section_descriptor is referencing, is set to NULL

 * Returns 1 if successful or -1 on error

 */

int libewf_section_descriptor_initialize(

     libewf_section_descriptor_t **section_descriptor,

     libcerror_error_t **error )

{

  static char *function = "libewf_section_descriptor_initialize";

  if( section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid section descriptor.",

     function );

    return( -1 );

  }

  if( *section_descriptor != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid section descriptor value already set.",

     function );

    return( -1 );

  }

  *section_descriptor = memory_allocate_structure(

                         libewf_section_descriptor_t );

  if( *section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create section descriptor.",

     function );

    goto on_error;

  }

  if( memory_set(

       *section_descriptor,

       0,

       sizeof( libewf_section_descriptor_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

     "%s: unable to clear section descriptor.",

     function );

    goto on_error;

  }

  return( 1 );

on_error:

  if( *section_descriptor != NULL )

  {

    memory_free(

     *section_descriptor );

    *section_descriptor = NULL;

  }

  return( -1 );

}

/* Frees a section descriptor

 * Returns 1 if successful or -1 on error

 */

int libewf_section_descriptor_free(

     libewf_section_descriptor_t **section_descriptor,

     libcerror_error_t **error )

{

  static char *function = "libewf_section_descriptor_free";

  if( section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid section descriptor.",

     function );

    return( -1 );

  }

  if( *section_descriptor != NULL )

  {

    memory_free(

     *section_descriptor );

    *section_descriptor = NULL;

  }

  return( 1 );

}

/* Clones the section descriptor

 * Returns 1 if successful or -1 on error

 */

int libewf_section_descriptor_clone(

     libewf_section_descriptor_t **destination_section_descriptor,

     libewf_section_descriptor_t *source_section_descriptor,

     libcerror_error_t **error )

{

  static char *function = "libewf_section_descriptor_clone";

  if( destination_section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid destination section descriptor.",

     function );

    return( -1 );

  }

  if( *destination_section_descriptor != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid destination section descriptor value already set.",

     function );

    return( -1 );

  }

  if( source_section_descriptor == NULL )

  {

    *destination_section_descriptor = NULL;

    return( 1 );

  }

  *destination_section_descriptor = memory_allocate_structure(

                                     libewf_section_descriptor_t );

  if( *destination_section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create destination section descriptor.",

     function );

    goto on_error;

  }

  if( memory_copy(

       *destination_section_descriptor,

       source_section_descriptor,

       sizeof( libewf_section_descriptor_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_COPY_FAILED,

     "%s: unable to copy source to destination section descriptor.",

     function );

    goto on_error;

  }

  return( 1 );

on_error:

  if( *destination_section_descriptor != NULL )

  {

    memory_free(

     *destination_section_descriptor );

    *destination_section_descriptor = NULL;

  }

  return( -1 );

}

/* Sets the section values

 * Returns 1 if successful or -1 on error

 */

int libewf_section_descriptor_set(

     libewf_section_descriptor_t *section_descriptor,

     uint32_t type,

     const uint8_t *type_string,

     size_t type_string_length,

     off64_t section_offset,

     size64_t section_size,

     size64_t data_size,

     uint32_t padding_size,

     libcerror_error_t **error )

{

  static char *function = "libewf_section_descriptor_set";

  if( section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid section descriptor.",

     function );

    return( -1 );

  }

  if( section_offset < 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid section offset value out of bounds.",

     function );

    return( -1 );

  }

  if( data_size > (size64_t) INT64_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( (size64_t) padding_size > data_size )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid padding size value exceeds data size.",

     function );

    return( -1 );

  }

  if( type_string != NULL )

  {

    if( ( type_string_length == 0 )

     || ( type_string_length > 16 ) )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

       LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid type string length value out of bounds.",

       function );

      return( -1 );

    }

    if( memory_copy(

         section_descriptor->type_string,

         type_string,

         type_string_length ) == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_MEMORY,

       LIBCERROR_MEMORY_ERROR_COPY_FAILED,

       "%s: unable to copy type string.",

       function );

      return( -1 );

    }

    section_descriptor->type_string[ type_string_length ] = 0;

    section_descriptor->type_string_length = type_string_length;

  }

  else

  {

    if( memory_set(

         section_descriptor->type_string,

         0,

         17 ) == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_MEMORY,

       LIBCERROR_MEMORY_ERROR_SET_FAILED,

       "%s: unable to set type string.",

       function );

      return( -1 );

    }

    section_descriptor->type_string_length = 0;

  }

  section_descriptor->type         = type;

  section_descriptor->start_offset = section_offset;

  section_descriptor->end_offset   = (off64_t) ( section_offset + section_size );

  section_descriptor->size         = section_size;

  section_descriptor->data_size    = data_size;

  section_descriptor->padding_size = padding_size;

  return( 1 );

}

/* Reads a section descriptor

 * Returns the number of bytes read or -1 on error

 */

int libewf_section_descriptor_read_data(

     libewf_section_descriptor_t *section_descriptor,

     const uint8_t *data,

     size_t data_size,

     off64_t file_offset,

     uint8_t format_version,

     libcerror_error_t **error )

{

  static char *function               = "libewf_section_descriptor_read_data";

  size_t section_descriptor_data_size = 0;

  uint64_t safe_end_offset            = 0;

  uint64_t safe_start_offset          = 0;

  uint32_t calculated_checksum        = 0;

  uint32_t section_descriptor_size    = 0;

  uint32_t stored_checksum            = 0;

  if( section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid section descriptor.",

     function );

    return( -1 );

  }

  if( data == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: missing data.",

     function );

    return( -1 );

  }

  if( format_version == 1 )

  {

    section_descriptor_data_size = sizeof( ewf_section_descriptor_v1_t );

  }

  else if( format_version == 2 )

  {

    section_descriptor_data_size = sizeof( ewf_section_descriptor_v2_t );

  }

  else

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: unsupported format version.",

     function );

    return( -1 );

  }

  if( data_size != section_descriptor_data_size )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_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: section descriptor data:\n",

     function );

    libcnotify_print_data(

     data,

     data_size,

     0 );

  }

#endif

  if( format_version == 1 )

  {

    if( memory_copy(

         section_descriptor->type_string,

         ( (ewf_section_descriptor_v1_t *) data )->type_string,

         16 ) == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_MEMORY,

       LIBCERROR_MEMORY_ERROR_COPY_FAILED,

       "%s: unable to set type string.",

       function );

      return( -1 );

    }

    section_descriptor->type_string[ 16 ] = 0;

    section_descriptor->type_string_length = narrow_string_length(

                                              (char *) section_descriptor->type_string );

    byte_stream_copy_to_uint64_little_endian(

     ( (ewf_section_descriptor_v1_t *) data )->size,

     section_descriptor->size );

    byte_stream_copy_to_uint64_little_endian(

     ( (ewf_section_descriptor_v1_t *) data )->next_offset,

     safe_end_offset );

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_section_descriptor_v1_t *) data )->checksum,

     stored_checksum );

  }

  else if( format_version == 2 )

  {

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->type,

     section_descriptor->type );

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->data_flags,

     section_descriptor->data_flags );

    byte_stream_copy_to_uint64_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->previous_offset,

     safe_start_offset );

    byte_stream_copy_to_uint64_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->data_size,

     section_descriptor->data_size );

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->padding_size,

     section_descriptor->padding_size );

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->descriptor_size,

     section_descriptor_size );

    byte_stream_copy_to_uint32_little_endian(

     ( (ewf_section_descriptor_v2_t *) data )->checksum,

     stored_checksum );

    if( memory_copy(

         section_descriptor->data_integrity_hash,

         ( (ewf_section_descriptor_v2_t *) data )->data_integrity_hash,

         16 ) == NULL )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_MEMORY,

       LIBCERROR_MEMORY_ERROR_COPY_FAILED,

       "%s: unable to set data integrity hash.",

       function );

      return( -1 );

    }

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    if( format_version == 1 )

    {

      libcnotify_printf(

       "%s: type string\t\t\t: %s\n",

       function,

       (char *) section_descriptor->type_string );

      libcnotify_printf(

       "%s: next offset\t\t\t: 0x%08" PRIx64 "\n",

       function,

       safe_end_offset );

      libcnotify_printf(

       "%s: size\t\t\t\t: %" PRIu64 "\n",

       function,

       section_descriptor->size );

      libcnotify_printf(

       "%s: padding:\n",

       function );

      libcnotify_print_data(

       ( (ewf_section_descriptor_v1_t *) data )->padding,

       40,

       0 );

    }

    else if( format_version == 2 )

    {

      libcnotify_printf(

       "%s: type\t\t\t\t: 0x%08" PRIx32 " (",

       function,

       section_descriptor->type );

      libewf_debug_print_section_type(

       section_descriptor->type );

      libcnotify_printf(

       ")\n" );

      libcnotify_printf(

       "%s: data flags\t\t\t\t: 0x%08" PRIx32 "\n",

       function,

       section_descriptor->data_flags );

      libewf_debug_print_section_data_flags(

       section_descriptor->data_flags );

      libcnotify_printf(

       "\n" );

      libcnotify_printf(

       "%s: previous offset\t\t\t: 0x%08" PRIx64 "\n",

       function,

       safe_start_offset );

      libcnotify_printf(

       "%s: data size\t\t\t\t: %" PRIu64 "\n",

       function,

       section_descriptor->data_size );

      libcnotify_printf(

       "%s: section descriptor size\t\t: %" PRIu32 "\n",

       function,

       section_descriptor_size );

      libcnotify_printf(

       "%s: padding size\t\t\t: %" PRIu32 "\n",

       function,

       section_descriptor->padding_size );

      libcnotify_printf(

       "%s: data integrity hash:\n",

       function );

      libcnotify_print_data(

       ( (ewf_section_descriptor_v2_t *) data )->data_integrity_hash,

       16,

       0 );

      libcnotify_printf(

       "%s: padding:\n",

       function );

      libcnotify_print_data(

       ( (ewf_section_descriptor_v2_t *) data )->padding,

       12,

       0 );

    }

    libcnotify_printf(

     "%s: checksum\t\t\t\t: 0x%08" PRIx32 "\n",

     function,

     stored_checksum );

    libcnotify_printf(

     "\n" );

  }

#endif /* defined( HAVE_DEBUG_OUTPUT ) */

  if( libewf_checksum_calculate_adler32(

       &calculated_checksum,

       data,

       data_size - 4,

       1,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to calculate checksum.",

     function );

    return( -1 );

  }

  if( stored_checksum != calculated_checksum )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_INPUT,

     LIBCERROR_INPUT_ERROR_CHECKSUM_MISMATCH,

     "%s: checksum does not match (stored: 0x%08" PRIx32 ", calculated: 0x%08" PRIx32 ").",

     function,

     stored_checksum,

     calculated_checksum );

    return( -1 );

  }

  if( format_version == 1 )

  {

    if( ( safe_end_offset < (uint64_t) file_offset )

     || ( safe_end_offset > (uint64_t) INT64_MAX ) )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid section next offset value out of bounds.",

       function );

      return( -1 );

    }

    section_descriptor->end_offset = (off64_t) safe_end_offset;

    if( ( section_descriptor->size != 0 )

     && ( ( section_descriptor->size < (size64_t) sizeof( ewf_section_descriptor_v1_t ) )

      ||  ( section_descriptor->size > (size64_t) INT64_MAX ) ) )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid section size value out of bounds.",

       function );

      return( -1 );

    }

    section_descriptor->start_offset = file_offset;

    /* Some versions of EWF1 do not set the section size

     * The next and done section_descriptor, which point back to themselves, are not corrected

     */

    if( ( section_descriptor->size == 0 )

     && ( section_descriptor->end_offset != section_descriptor->start_offset ) )

    {

      section_descriptor->size = section_descriptor->end_offset - section_descriptor->start_offset;

    }

    if( section_descriptor->size != 0 )

    {

      section_descriptor->data_size = section_descriptor->size - sizeof( ewf_section_descriptor_v1_t );

    }

  }

  else if( format_version == 2 )

  {

    if( ( file_offset < 0 )

     || ( file_offset > (off64_t) ( INT64_MAX - sizeof( ewf_section_descriptor_v2_t ) ) ) )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

       LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid file offset value out of bounds.",

       function );

      return( -1 );

    }

    if( safe_start_offset > (uint64_t) file_offset )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid section previous offset value out of bounds.",

       function );

      return( -1 );

    }

    if( safe_start_offset == 0 )

    {

      section_descriptor->start_offset = sizeof( ewf_file_header_v2_t );

    }

    else

    {

      if( safe_start_offset < (uint64_t) sizeof( ewf_file_header_v2_t ) )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

         "%s: invalid section previous offset value out of bounds.",

         function );

        return( -1 );

      }

      section_descriptor->start_offset = (off64_t) ( safe_start_offset + sizeof( ewf_section_descriptor_v2_t ) );

    }

    section_descriptor->end_offset = file_offset + (off64_t) sizeof( ewf_section_descriptor_v2_t );

    section_descriptor->size       = (size64_t) ( section_descriptor->end_offset - section_descriptor->start_offset );

    if( section_descriptor->data_size > section_descriptor->size )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid section data size value out of bounds.",

       function );

      return( -1 );

    }

    if( section_descriptor->padding_size > section_descriptor->data_size )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

       "%s: invalid section padding size value out of bounds.",

       function );

      return( -1 );

    }

  }

  if( format_version == 1 )

  {

    section_descriptor->type = 0;

    if( section_descriptor->type_string_length == 4 )

    {

      if( memory_compare(

           section_descriptor->type_string,

           "done",

           4 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_DONE;

      }

      else if( memory_compare(

                section_descriptor->type_string,

                "hash",

                4 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_MD5_HASH;

      }

      else if( memory_compare(

                section_descriptor->type_string,

                "next",

                4 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_NEXT;

      }

    }

    else if( section_descriptor->type_string_length == 5 )

    {

      if( memory_compare(

           section_descriptor->type_string,

           "ltree",

           5 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_SINGLE_FILES_DATA;

      }

      else if( memory_compare(

                section_descriptor->type_string,

                "table",

                5 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_SECTOR_TABLE;

      }

    }

    else if( section_descriptor->type_string_length == 6 )

    {

      if( memory_compare(

           section_descriptor->type_string,

           "error2",

           6 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_ERROR_TABLE;

      }

    }

    else if( section_descriptor->type_string_length == 7 )

    {

      if( memory_compare(

           section_descriptor->type_string,

           "sectors",

           7 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_SECTOR_DATA;

      }

      else if( memory_compare(

                section_descriptor->type_string,

                "session",

                7 ) == 0 )

      {

        section_descriptor->type = LIBEWF_SECTION_TYPE_SESSION_TABLE;

      }

    }

    if( section_descriptor->size != 0 )

    {

      /* Make sure to check if the section next value is sane

       * the end offset of the next and done sections point back at themselves

       */

      if( section_descriptor->end_offset == section_descriptor->start_offset )

      {

        if( ( section_descriptor->type != LIBEWF_SECTION_TYPE_DONE )

         && ( section_descriptor->type != LIBEWF_SECTION_TYPE_NEXT ) )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

           LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

           "%s: mismatch in next section offset (stored: %" PRIi64 ", calculated: %" PRIi64 ").",

           function,

           section_descriptor->end_offset,

           section_descriptor->start_offset );

          return( -1 );

        }

        if( section_descriptor->size != sizeof( ewf_section_descriptor_v1_t ) )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

           "%s: invalid section size value out of bounds.",

           function );

          return( -1 );

        }

      }

      else

      {

        if( (uint64_t) file_offset > ( (uint64_t) INT64_MAX - section_descriptor->size ) )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

           "%s: invalid file offset value out of bounds.",

           function );

          return( -1 );

        }

        file_offset += (off64_t) section_descriptor->size;

        if( section_descriptor->end_offset != file_offset )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

           LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

           "%s: mismatch in next section offset (stored: %" PRIi64 ", calculated: %" PRIi64 ").",

           function,

           section_descriptor->end_offset,

           file_offset );

          return( -1 );

        }

      }

    }

    else

    {

      /* Make sure to check if the section next value is sane

       * the end offset of the next and done sections point back at themselves

       */

      if( section_descriptor->end_offset == section_descriptor->start_offset )

      {

        if( ( section_descriptor->type != LIBEWF_SECTION_TYPE_DONE )

         && ( section_descriptor->type != LIBEWF_SECTION_TYPE_NEXT ) )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

           LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

           "%s: mismatch in next section offset (stored: %" PRIi64 ", calculated: %" PRIi64 ").",

           function,

           section_descriptor->end_offset,

           section_descriptor->start_offset );

          return( -1 );

        }

        section_descriptor->size = (size64_t) sizeof( ewf_section_descriptor_v1_t );

      }

      else

      {

        file_offset += (off64_t) sizeof( ewf_section_descriptor_v1_t );

        if( section_descriptor->end_offset < file_offset )

        {

          libcerror_error_set(

           error,

           LIBCERROR_ERROR_DOMAIN_RUNTIME,

           LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

           "%s: invalid section next offset value out of bounds.",

           function );

          return( -1 );

        }

        section_descriptor->size = (size64_t) ( section_descriptor->end_offset - section_descriptor->start_offset );

      }

    }

  }

  else if( format_version == 2 )

  {

    if( (size_t) section_descriptor_size != sizeof( ewf_section_descriptor_v2_t ) )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_INPUT,

       LIBCERROR_INPUT_ERROR_VALUE_MISMATCH,

       "%s: mismatch in section descriptor size.",

       function );

      return( -1 );

    }

  }

  return( 1 );

}

/* Reads a section descriptor

 * Returns the number of bytes read or -1 on error

 */

ssize_t libewf_section_descriptor_read_file_io_pool(

         libewf_section_descriptor_t *section_descriptor,

         libbfio_pool_t *file_io_pool,

         int file_io_pool_entry,

         off64_t file_offset,

         uint8_t format_version,

         libcerror_error_t **error )

{

  uint8_t *section_descriptor_data    = NULL;

  static char *function               = "libewf_section_descriptor_read_file_io_pool";

  size_t section_descriptor_data_size = 0;

  ssize_t read_count                  = 0;

  if( section_descriptor == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid section descriptor.",

     function );

    return( -1 );

  }

  if( format_version == 1 )

  {

    section_descriptor_data_size = sizeof( ewf_section_descriptor_v1_t );

  }

  else if( format_version == 2 )

  {

    section_descriptor_data_size = sizeof( ewf_section_descriptor_v2_t );

  }

  else

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: unsupported format version.",

     function );

    return( -1 );

  }