/src/libfsext/libfsext/libfsext_attributes_block.c

Source (jump to first uncovered line)
/*
 * Extended attributes block functions
 *
 * Copyright (C) 2010-2024, 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 "libfsext_attribute_values.h"
#include "libfsext_attributes_block.h"
#include "libfsext_debug.h"
#include "libfsext_io_handle.h"
#include "libfsext_libbfio.h"
#include "libfsext_libcdata.h"
#include "libfsext_libcerror.h"
#include "libfsext_libcnotify.h"

#include "fsext_attributes.h"

/* Reads the extended attributes block header data
 * Returns 1 if successful or -1 on error
 */
int libfsext_attributes_block_read_header_data(
     libfsext_io_handle_t *io_handle,
     const uint8_t *data,
     size_t data_size,
     libcerror_error_t **error )
{
  static char *function     = "libfsext_attributes_block_read_header_data";
  uint32_t number_of_blocks = 0;
  uint32_t signature        = 0;

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

  if( io_handle == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid IO handle.",
     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 < sizeof( fsext_attributes_header_ext2_t ) )
   || ( data_size > (size_t) SSIZE_MAX ) )
  {
    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: extended attributes block header data:\n",
     function );
    libcnotify_print_data(
     data,
     sizeof( fsext_attributes_header_ext2_t ),
     LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
  }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

  byte_stream_copy_to_uint32_little_endian(
   ( (fsext_attributes_header_ext2_t *) data )->signature,
   signature );

  byte_stream_copy_to_uint32_little_endian(
   ( (fsext_attributes_header_ext2_t *) data )->number_of_blocks,
   number_of_blocks );

#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: signature\t\t\t: 0x%08" PRIx32 "\n",
     function,
     signature );

    byte_stream_copy_to_uint32_little_endian(
     ( (fsext_attributes_header_ext2_t *) data )->reference_count,
     value_32bit );
    libcnotify_printf(
     "%s: reference count\t\t: %" PRIu32 "\n",
     function,
     value_32bit );

    libcnotify_printf(
     "%s: number of blocks\t\t: %" PRIu32 "\n",
     function,
     number_of_blocks );

    byte_stream_copy_to_uint32_little_endian(
     ( (fsext_attributes_header_ext2_t *) data )->attributes_hash,
     value_32bit );
    libcnotify_printf(
     "%s: attributes hash\t\t: 0x%08" PRIx32 "\n",
     function,
     value_32bit );

    if( ( io_handle->format_version == 2 )
     || ( io_handle->format_version == 3 ) )
    {
      libcnotify_printf(
       "%s: unknown1:\n",
       function );
      libcnotify_print_data(
       ( (fsext_attributes_header_ext2_t *) data )->unknown1,
       16,
       0 );
    }
    else if( io_handle->format_version == 4 )
    {
      byte_stream_copy_to_uint32_little_endian(
       ( (fsext_attributes_header_ext4_t *) data )->checksum,
       value_32bit );
      libcnotify_printf(
       "%s: checksum\t\t\t: 0x%08" PRIx32 "\n",
       function,
       value_32bit );

      libcnotify_printf(
       "%s: unknown1:\n",
       function );
      libcnotify_print_data(
       ( (fsext_attributes_header_ext4_t *) data )->unknown1,
       12,
       0 );
    }
  }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

  if( signature != 0xea020000UL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
     "%s: invalid signature.",
     function );

    return( -1 );
  }
  if( number_of_blocks != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid number of blocks value out of bounds.",
     function );

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

/* Reads the extended attributes block entries data
 * Returns 1 if successful or -1 on error
 */
int libfsext_attributes_block_read_entries_data(
     const uint8_t *data,
     size_t data_size,
     size_t data_offset,
     libcdata_array_t *extended_attributes,
     libcerror_error_t **error )
{
  libfsext_attribute_values_t *attribute_values = NULL;
  static char *function                         = "libfsext_attributes_block_read_entries_data";
  size_t alignment_padding_size                 = 0;
  int attribute_index                           = 0;
  int entry_index                               = 0;

  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 < sizeof( fsext_attributes_entry_t ) )
   || ( data_size > (size_t) SSIZE_MAX ) )
  {
    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( data_offset >= ( data_size - sizeof( fsext_attributes_entry_t ) ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid data offset value out of bounds.",
     function );

    return( -1 );
  }
  while( data_offset < data_size )
  {
    if( data_offset >= ( data_size - sizeof( fsext_attributes_entry_t ) ) )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
       "%s: invalid data size value out of bounds.",
       function );

      goto on_error;
    }
    /* The list terminator consist of 8 0-byte values
     */
    if( memory_compare(
         &( data[ data_offset ] ),
         "\x00\x00\x00\x00\x00\x00\x00\x00",
         8 ) == 0 )
    {
#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: extended attributes entry: %d data:\n",
         function,
         attribute_index );
        libcnotify_print_data(
         &( data[ data_offset ] ),
         sizeof( fsext_attributes_entry_t ),
         LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
      }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

      break;
    }
    if( libfsext_attribute_values_initialize(
         &attribute_values,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
       "%s: unable to create attribute: %d values.",
       function,
       attribute_index );

      goto on_error;
    }
    if( libfsext_attribute_values_read_data(
         attribute_values,
         &( data[ data_offset ] ),
         data_size - data_offset,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_IO,
       LIBCERROR_IO_ERROR_READ_FAILED,
       "%s: unable to read attribute: %d values.",
       function,
       attribute_index );

      goto on_error;
    }
    data_offset += sizeof( fsext_attributes_entry_t ) + data[ data_offset ];

    alignment_padding_size = data_offset % 4;

    if( alignment_padding_size != 0 )
    {
      alignment_padding_size = 4 - alignment_padding_size;
    }
    if( alignment_padding_size > 0 )
    {
#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: alignment padding:\n",
         function );
        libcnotify_print_data(
         &( data[ data_offset ] ),
         alignment_padding_size,
         0 );
      }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

      data_offset += alignment_padding_size;
    }
    if( ( attribute_values->value_data_inode_number == 0 )
     && ( attribute_values->value_data_size > 0 ) )
    {
      if( ( attribute_values->value_data_offset < sizeof( fsext_attributes_header_ext2_t ) )
       || ( attribute_values->value_data_offset >= data_size ) )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
         "%s: invalid value data offset value out of bounds.",
         function );

        goto on_error;
      }
      if( attribute_values->value_data_size > ( data_size - attribute_values->value_data_offset ) )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
         "%s: invalid value data size value out of bounds.",
         function );

        goto on_error;
      }
#if defined( HAVE_DEBUG_OUTPUT )
      if( libcnotify_verbose != 0 )
      {
        libcnotify_printf(
         "%s: attribute: %d value data:\n",
         function,
         attribute_index );
        libcnotify_print_data(
         &( data[ attribute_values->value_data_offset ] ),
         attribute_values->value_data_size,
         0 );
      }
#endif /* defined( HAVE_DEBUG_OUTPUT ) */

      attribute_values->value_data = (uint8_t *) memory_allocate(
                                                  sizeof( uint8_t ) * attribute_values->value_data_size );

      if( attribute_values->value_data == NULL )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_MEMORY,
         LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
         "%s: unable to create value data.",
         function );

        goto on_error;
      }
      if( memory_copy(
           attribute_values->value_data,
           &( data[ attribute_values->value_data_offset ] ),
           (size_t) attribute_values->value_data_size ) == NULL )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_MEMORY,
         LIBCERROR_MEMORY_ERROR_COPY_FAILED,
         "%s: unable to copy value data to attribute values.",
         function );

        goto on_error;
      }
    }
    if( libcdata_array_append_entry(
         extended_attributes,
         &entry_index,
         (intptr_t *) attribute_values,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
       "%s: unable to append attribute: %d values to array.",
       function,
       attribute_index );

      goto on_error;
    }
    attribute_values = NULL;

    attribute_index++;
  }
  return( 1 );

on_error:
  if( attribute_values != NULL )
  {
    libfsext_attribute_values_free(
     &attribute_values,
     NULL );
  }
  libcdata_array_empty(
   extended_attributes,
   (int (*)(intptr_t **, libcerror_error_t **)) &libfsext_attribute_values_free,
   NULL );

  return( -1 );
}

/* Reads the extended attributes block from a Basic File IO (bfio) handle
 * Returns 1 if successful or -1 on error
 */
int libfsext_attributes_block_read_file_io_handle(
     libcdata_array_t *extended_attributes,
     libfsext_io_handle_t *io_handle,
     libbfio_handle_t *file_io_handle,
     off64_t file_offset,
     libcerror_error_t **error )
{
  uint8_t *data         = NULL;
  static char *function = "libfsext_attributes_block_read_file_io_handle";
  ssize_t read_count    = 0;

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

    return( -1 );
  }
  if( ( io_handle->block_size == 0 )
   || ( io_handle->block_size > (uint32_t) MEMORY_MAXIMUM_ALLOCATION_SIZE ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: invalid IO handle - block size value out of bounds.",
     function );

    return( -1 );
  }
  data = (uint8_t *) memory_allocate(
                      sizeof( uint8_t ) * io_handle->block_size );

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

    goto on_error;
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: reading extended attributes block at offset: %" PRIi64 " (0x%08" PRIx64 ")\n",
     function,
     file_offset,
     file_offset );
  }
#endif
  read_count = libbfio_handle_read_buffer_at_offset(
                file_io_handle,
                data,
                (size_t) io_handle->block_size,
                file_offset,
                error );

  if( read_count != (ssize_t) io_handle->block_size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read extended attributes block data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     file_offset,
     file_offset );

    goto on_error;
  }
  if( libfsext_attributes_block_read_header_data(
       io_handle,
       data,
       (size_t) io_handle->block_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read extended attributes block header.",
     function );

    goto on_error;
  }
  if( libfsext_attributes_block_read_entries_data(
       data,
       (size_t) io_handle->block_size,
       sizeof( fsext_attributes_header_ext2_t ),
       extended_attributes,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read extended attributes block entries.",
     function );

    goto on_error;
  }
  memory_free(
   data );

  return( 1 );

on_error:
  if( data != NULL )
  {
    memory_free(
     data );
  }
  return( -1 );
}


Coverage Report

Created: 2025-06-13 07:22

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Extended attributes block functions
3		*
4		* Copyright (C) 2010-2024, Joachim Metz <joachim.metz@gmail.com>
5		*
6		* Refer to AUTHORS for acknowledgements.
7		*
8		* This program is free software: you can redistribute it and/or modify
9		* it under the terms of the GNU Lesser General Public License as published by
10		* the Free Software Foundation, either version 3 of the License, or
11		* (at your option) any later version.
12		*
13		* This program is distributed in the hope that it will be useful,
14		* but WITHOUT ANY WARRANTY; without even the implied warranty of
15		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16		* GNU General Public License for more details.
17		*
18		* You should have received a copy of the GNU Lesser General Public License
19		* along with this program. If not, see <https://www.gnu.org/licenses/>.
20		*/
21
22		#include <common.h>
23		#include <byte_stream.h>
24		#include <memory.h>
25		#include <types.h>
26
27		#include "libfsext_attribute_values.h"
28		#include "libfsext_attributes_block.h"
29		#include "libfsext_debug.h"
30		#include "libfsext_io_handle.h"
31		#include "libfsext_libbfio.h"
32		#include "libfsext_libcdata.h"
33		#include "libfsext_libcerror.h"
34		#include "libfsext_libcnotify.h"
35
36		#include "fsext_attributes.h"
37
38		/* Reads the extended attributes block header data
39		* Returns 1 if successful or -1 on error
40		*/
41		int libfsext_attributes_block_read_header_data(
42		libfsext_io_handle_t *io_handle,
43		const uint8_t *data,
44		size_t data_size,
45		libcerror_error_t **error )
46	90	{
47	90	static char *function = "libfsext_attributes_block_read_header_data";
48	90	uint32_t number_of_blocks = 0;
49	90	uint32_t signature = 0;
50
51		#if defined( HAVE_DEBUG_OUTPUT )
52		uint32_t value_32bit = 0;
53		#endif
54
55	90	if( io_handle == NULL )
56	0	{
57	0	libcerror_error_set(
58	0	error,
59	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
60	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
61	0	"%s: invalid IO handle.",
62	0	function );
63
64	0	return( -1 );
65	0	}
66	90	if( data == NULL )
67	0	{
68	0	libcerror_error_set(
69	0	error,
70	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
71	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
72	0	"%s: invalid data.",
73	0	function );
74
75	0	return( -1 );
76	0	}
77	90	if( ( data_size < sizeof( fsext_attributes_header_ext2_t ) )
78	90	\|\| ( data_size > (size_t) SSIZE_MAX ) )
79	0	{
80	0	libcerror_error_set(
81	0	error,
82	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
83	0	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
84	0	"%s: invalid data size value out of bounds.",
85	0	function );
86
87	0	return( -1 );
88	0	}
89		#if defined( HAVE_DEBUG_OUTPUT )
90		if( libcnotify_verbose != 0 )
91		{
92		libcnotify_printf(
93		"%s: extended attributes block header data:\n",
94		function );
95		libcnotify_print_data(
96		data,
97		sizeof( fsext_attributes_header_ext2_t ),
98		LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
99		}
100		#endif /* defined( HAVE_DEBUG_OUTPUT ) */
101
102	90	byte_stream_copy_to_uint32_little_endian(
103	90	( (fsext_attributes_header_ext2_t *) data )->signature,
104	90	signature );
105
106	90	byte_stream_copy_to_uint32_little_endian(
107	90	( (fsext_attributes_header_ext2_t *) data )->number_of_blocks,
108	90	number_of_blocks );
109
110		#if defined( HAVE_DEBUG_OUTPUT )
111		if( libcnotify_verbose != 0 )
112		{
113		libcnotify_printf(
114		"%s: signature\t\t\t: 0x%08" PRIx32 "\n",
115		function,
116		signature );
117
118		byte_stream_copy_to_uint32_little_endian(
119		( (fsext_attributes_header_ext2_t *) data )->reference_count,
120		value_32bit );
121		libcnotify_printf(
122		"%s: reference count\t\t: %" PRIu32 "\n",
123		function,
124		value_32bit );
125
126		libcnotify_printf(
127		"%s: number of blocks\t\t: %" PRIu32 "\n",
128		function,
129		number_of_blocks );
130
131		byte_stream_copy_to_uint32_little_endian(
132		( (fsext_attributes_header_ext2_t *) data )->attributes_hash,
133		value_32bit );
134		libcnotify_printf(
135		"%s: attributes hash\t\t: 0x%08" PRIx32 "\n",
136		function,
137		value_32bit );
138
139		if( ( io_handle->format_version == 2 )
140		\|\| ( io_handle->format_version == 3 ) )
141		{
142		libcnotify_printf(
143		"%s: unknown1:\n",
144		function );
145		libcnotify_print_data(
146		( (fsext_attributes_header_ext2_t *) data )->unknown1,
147		16,
148		0 );
149		}
150		else if( io_handle->format_version == 4 )
151		{
152		byte_stream_copy_to_uint32_little_endian(
153		( (fsext_attributes_header_ext4_t *) data )->checksum,
154		value_32bit );
155		libcnotify_printf(
156		"%s: checksum\t\t\t: 0x%08" PRIx32 "\n",
157		function,
158		value_32bit );
159
160		libcnotify_printf(
161		"%s: unknown1:\n",
162		function );
163		libcnotify_print_data(
164		( (fsext_attributes_header_ext4_t *) data )->unknown1,
165		12,
166		0 );
167		}
168		}
169		#endif /* defined( HAVE_DEBUG_OUTPUT ) */
170
171	90	if( signature != 0xea020000UL )
172	46	{
173	46	libcerror_error_set(
174	46	error,
175	46	LIBCERROR_ERROR_DOMAIN_RUNTIME,
176	46	LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
177	46	"%s: invalid signature.",
178	46	function );
179
180	46	return( -1 );
181	46	}
182	44	if( number_of_blocks != 1 )
183	37	{
184	37	libcerror_error_set(
185	37	error,
186	37	LIBCERROR_ERROR_DOMAIN_RUNTIME,
187	37	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
188	37	"%s: invalid number of blocks value out of bounds.",
189	37	function );
190
191	37	return( -1 );
192	37	}
193	7	return( 1 );
194	44	}
195
196		/* Reads the extended attributes block entries data
197		* Returns 1 if successful or -1 on error
198		*/
199		int libfsext_attributes_block_read_entries_data(
200		const uint8_t *data,
201		size_t data_size,
202		size_t data_offset,
203		libcdata_array_t *extended_attributes,
204		libcerror_error_t **error )
205	249	{
206	249	libfsext_attribute_values_t *attribute_values = NULL;
207	249	static char *function = "libfsext_attributes_block_read_entries_data";
208	249	size_t alignment_padding_size = 0;
209	249	int attribute_index = 0;
210	249	int entry_index = 0;
211
212	249	if( data == NULL )
213	0	{
214	0	libcerror_error_set(
215	0	error,
216	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
217	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
218	0	"%s: invalid data.",
219	0	function );
220
221	0	return( -1 );
222	0	}
223	249	if( ( data_size < sizeof( fsext_attributes_entry_t ) )
224	249	\|\| ( data_size > (size_t) SSIZE_MAX ) )
225	5	{
226	5	libcerror_error_set(
227	5	error,
228	5	LIBCERROR_ERROR_DOMAIN_RUNTIME,
229	5	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
230	5	"%s: invalid data size value out of bounds.",
231	5	function );
232
233	5	return( -1 );
234	5	}
235	244	if( data_offset >= ( data_size - sizeof( fsext_attributes_entry_t ) ) )
236	2	{
237	2	libcerror_error_set(
238	2	error,
239	2	LIBCERROR_ERROR_DOMAIN_RUNTIME,
240	2	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
241	2	"%s: invalid data offset value out of bounds.",
242	2	function );
243
244	2	return( -1 );
245	2	}
246	2.57k	while( data_offset < data_size )
247	2.55k	{
248	2.55k	if( data_offset >= ( data_size - sizeof( fsext_attributes_entry_t ) ) )
249	13	{
250	13	libcerror_error_set(
251	13	error,
252	13	LIBCERROR_ERROR_DOMAIN_RUNTIME,
253	13	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
254	13	"%s: invalid data size value out of bounds.",
255	13	function );
256
257	13	goto on_error;
258	13	}
259		/* The list terminator consist of 8 0-byte values
260		*/
261	2.54k	if( memory_compare(
262	2.54k	&( data[ data_offset ] ),
263	2.54k	"\x00\x00\x00\x00\x00\x00\x00\x00",
264	2.54k	8 ) == 0 )
265	71	{
266		#if defined( HAVE_DEBUG_OUTPUT )
267		if( libcnotify_verbose != 0 )
268		{
269		libcnotify_printf(
270		"%s: extended attributes entry: %d data:\n",
271		function,
272		attribute_index );
273		libcnotify_print_data(
274		&( data[ data_offset ] ),
275		sizeof( fsext_attributes_entry_t ),
276		LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
277		}
278		#endif /* defined( HAVE_DEBUG_OUTPUT ) */
279
280	71	break;
281	71	}
282	2.47k	if( libfsext_attribute_values_initialize(
283	2.47k	&attribute_values,
284	2.47k	error ) != 1 )
285	0	{
286	0	libcerror_error_set(
287	0	error,
288	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
289	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
290	0	"%s: unable to create attribute: %d values.",
291	0	function,
292	0	attribute_index );
293
294	0	goto on_error;
295	0	}
296	2.47k	if( libfsext_attribute_values_read_data(
297	2.47k	attribute_values,
298	2.47k	&( data[ data_offset ] ),
299	2.47k	data_size - data_offset,
300	2.47k	error ) != 1 )
301	33	{
302	33	libcerror_error_set(
303	33	error,
304	33	LIBCERROR_ERROR_DOMAIN_IO,
305	33	LIBCERROR_IO_ERROR_READ_FAILED,
306	33	"%s: unable to read attribute: %d values.",
307	33	function,
308	33	attribute_index );
309
310	33	goto on_error;
311	33	}
312	2.44k	data_offset += sizeof( fsext_attributes_entry_t ) + data[ data_offset ];
313
314	2.44k	alignment_padding_size = data_offset % 4;
315
316	2.44k	if( alignment_padding_size != 0 )
317	866	{
318	866	alignment_padding_size = 4 - alignment_padding_size;
319	866	}
320	2.44k	if( alignment_padding_size > 0 )
321	866	{
322		#if defined( HAVE_DEBUG_OUTPUT )
323		if( libcnotify_verbose != 0 )
324		{
325		libcnotify_printf(
326		"%s: alignment padding:\n",
327		function );
328		libcnotify_print_data(
329		&( data[ data_offset ] ),
330		alignment_padding_size,
331		0 );
332		}
333		#endif /* defined( HAVE_DEBUG_OUTPUT ) */
334
335	866	data_offset += alignment_padding_size;
336	866	}
337	2.44k	if( ( attribute_values->value_data_inode_number == 0 )
338	2.44k	&& ( attribute_values->value_data_size > 0 ) )
339	305	{
340	305	if( ( attribute_values->value_data_offset < sizeof( fsext_attributes_header_ext2_t ) )
341	305	\|\| ( attribute_values->value_data_offset >= data_size ) )
342	57	{
343	57	libcerror_error_set(
344	57	error,
345	57	LIBCERROR_ERROR_DOMAIN_RUNTIME,
346	57	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
347	57	"%s: invalid value data offset value out of bounds.",
348	57	function );
349
350	57	goto on_error;
351	57	}
352	248	if( attribute_values->value_data_size > ( data_size - attribute_values->value_data_offset ) )
353	50	{
354	50	libcerror_error_set(
355	50	error,
356	50	LIBCERROR_ERROR_DOMAIN_RUNTIME,
357	50	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
358	50	"%s: invalid value data size value out of bounds.",
359	50	function );
360
361	50	goto on_error;
362	50	}
363		#if defined( HAVE_DEBUG_OUTPUT )
364		if( libcnotify_verbose != 0 )
365		{
366		libcnotify_printf(
367		"%s: attribute: %d value data:\n",
368		function,
369		attribute_index );
370		libcnotify_print_data(
371		&( data[ attribute_values->value_data_offset ] ),
372		attribute_values->value_data_size,
373		0 );
374		}
375		#endif /* defined( HAVE_DEBUG_OUTPUT ) */
376
377	198	attribute_values->value_data = (uint8_t *) memory_allocate(
378	198	sizeof( uint8_t ) * attribute_values->value_data_size );
379
380	198	if( attribute_values->value_data == NULL )
381	0	{
382	0	libcerror_error_set(
383	0	error,
384	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
385	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
386	0	"%s: unable to create value data.",
387	0	function );
388
389	0	goto on_error;
390	0	}
391	198	if( memory_copy(
392	198	attribute_values->value_data,
393	198	&( data[ attribute_values->value_data_offset ] ),
394	198	(size_t) attribute_values->value_data_size ) == NULL )
395	0	{
396	0	libcerror_error_set(
397	0	error,
398	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
399	0	LIBCERROR_MEMORY_ERROR_COPY_FAILED,
400	0	"%s: unable to copy value data to attribute values.",
401	0	function );
402
403	0	goto on_error;
404	0	}
405	198	}
406	2.33k	if( libcdata_array_append_entry(
407	2.33k	extended_attributes,
408	2.33k	&entry_index,
409	2.33k	(intptr_t *) attribute_values,
410	2.33k	error ) != 1 )
411	0	{
412	0	libcerror_error_set(
413	0	error,
414	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
415	0	LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
416	0	"%s: unable to append attribute: %d values to array.",
417	0	function,
418	0	attribute_index );
419
420	0	goto on_error;
421	0	}
422	2.33k	attribute_values = NULL;
423
424	2.33k	attribute_index++;
425	2.33k	}
426	89	return( 1 );
427
428	153	on_error:
429	153	if( attribute_values != NULL )
430	140	{
431	140	libfsext_attribute_values_free(
432	140	&attribute_values,
433	140	NULL );
434	140	}
435	153	libcdata_array_empty(
436	153	extended_attributes,
437	153	(int ()(intptr_t , libcerror_error_t *)) &libfsext_attribute_values_free,
438	153	NULL );
439
440	153	return( -1 );
441	242	}
442
443		/* Reads the extended attributes block from a Basic File IO (bfio) handle
444		* Returns 1 if successful or -1 on error
445		*/
446		int libfsext_attributes_block_read_file_io_handle(
447		libcdata_array_t *extended_attributes,
448		libfsext_io_handle_t *io_handle,
449		libbfio_handle_t *file_io_handle,
450		off64_t file_offset,
451		libcerror_error_t **error )
452	177	{
453	177	uint8_t *data = NULL;
454	177	static char *function = "libfsext_attributes_block_read_file_io_handle";
455	177	ssize_t read_count = 0;
456
457	177	if( io_handle == NULL )
458	0	{
459	0	libcerror_error_set(
460	0	error,
461	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
462	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
463	0	"%s: invalid IO handle.",
464	0	function );
465
466	0	return( -1 );
467	0	}
468	177	if( ( io_handle->block_size == 0 )
469	177	\|\| ( io_handle->block_size > (uint32_t) MEMORY_MAXIMUM_ALLOCATION_SIZE ) )
470	0	{
471	0	libcerror_error_set(
472	0	error,
473	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
474	0	LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
475	0	"%s: invalid IO handle - block size value out of bounds.",
476	0	function );
477
478	0	return( -1 );
479	0	}
480	177	data = (uint8_t *) memory_allocate(
481	177	sizeof( uint8_t ) * io_handle->block_size );
482
483	177	if( data == NULL )
484	0	{
485	0	libcerror_error_set(
486	0	error,
487	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
488	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
489	0	"%s: unable to create data.",
490	0	function );
491
492	0	goto on_error;
493	0	}
494		#if defined( HAVE_DEBUG_OUTPUT )
495		if( libcnotify_verbose != 0 )
496		{
497		libcnotify_printf(
498		"%s: reading extended attributes block at offset: %" PRIi64 " (0x%08" PRIx64 ")\n",
499		function,
500		file_offset,
501		file_offset );
502		}
503		#endif
504	177	read_count = libbfio_handle_read_buffer_at_offset(
505	177	file_io_handle,
506	177	data,
507	177	(size_t) io_handle->block_size,
508	177	file_offset,
509	177	error );
510
511	177	if( read_count != (ssize_t) io_handle->block_size )
512	87	{
513	87	libcerror_error_set(
514	87	error,
515	87	LIBCERROR_ERROR_DOMAIN_IO,
516	87	LIBCERROR_IO_ERROR_READ_FAILED,
517	87	"%s: unable to read extended attributes block data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
518	87	function,
519	87	file_offset,
520	87	file_offset );
521
522	87	goto on_error;
523	87	}
524	90	if( libfsext_attributes_block_read_header_data(
525	90	io_handle,
526	90	data,
527	90	(size_t) io_handle->block_size,
528	90	error ) != 1 )
529	83	{
530	83	libcerror_error_set(
531	83	error,
532	83	LIBCERROR_ERROR_DOMAIN_IO,
533	83	LIBCERROR_IO_ERROR_READ_FAILED,
534	83	"%s: unable to read extended attributes block header.",
535	83	function );
536
537	83	goto on_error;
538	83	}
539	7	if( libfsext_attributes_block_read_entries_data(
540	7	data,
541	7	(size_t) io_handle->block_size,
542	7	sizeof( fsext_attributes_header_ext2_t ),
543	7	extended_attributes,
544	7	error ) != 1 )
545	3	{
546	3	libcerror_error_set(
547	3	error,
548	3	LIBCERROR_ERROR_DOMAIN_IO,
549	3	LIBCERROR_IO_ERROR_READ_FAILED,
550	3	"%s: unable to read extended attributes block entries.",
551	3	function );
552
553	3	goto on_error;
554	3	}
555	4	memory_free(
556	4	data );
557
558	4	return( 1 );
559
560	173	on_error:
561	173	if( data != NULL )
562	173	{
563	173	memory_free(
564	173	data );
565	173	}
566	173	return( -1 );
567	7	}
568