/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: 2025-07-04 07:01

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	91	{
47	91	static char *function = "libfsext_attributes_block_read_header_data";
48	91	uint32_t number_of_blocks = 0;
49	91	uint32_t signature = 0;
50
51		#if defined( HAVE_DEBUG_OUTPUT )
52		uint32_t value_32bit = 0;
53		#endif
54
55	91	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	91	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	91	if( ( data_size < sizeof( fsext_attributes_header_ext2_t ) )
78	91	\|\| ( 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	91	byte_stream_copy_to_uint32_little_endian(
103	91	( (fsext_attributes_header_ext2_t *) data )->signature,
104	91	signature );
105
106	91	byte_stream_copy_to_uint32_little_endian(
107	91	( (fsext_attributes_header_ext2_t *) data )->number_of_blocks,
108	91	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	91	if( signature != 0xea020000UL )
172	45	{
173	45	libcerror_error_set(
174	45	error,
175	45	LIBCERROR_ERROR_DOMAIN_RUNTIME,
176	45	LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
177	45	"%s: invalid signature.",
178	45	function );
179
180	45	return( -1 );
181	45	}
182	46	if( number_of_blocks != 1 )
183	40	{
184	40	libcerror_error_set(
185	40	error,
186	40	LIBCERROR_ERROR_DOMAIN_RUNTIME,
187	40	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
188	40	"%s: invalid number of blocks value out of bounds.",
189	40	function );
190
191	40	return( -1 );
192	40	}
193	6	return( 1 );
194	46	}
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	244	{
206	244	libfsext_attribute_values_t *attribute_values = NULL;
207	244	static char *function = "libfsext_attributes_block_read_entries_data";
208	244	size_t alignment_padding_size = 0;
209	244	int attribute_index = 0;
210	244	int entry_index = 0;
211
212	244	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	244	if( ( data_size < sizeof( fsext_attributes_entry_t ) )
224	244	\|\| ( data_size > (size_t) SSIZE_MAX ) )
225	4	{
226	4	libcerror_error_set(
227	4	error,
228	4	LIBCERROR_ERROR_DOMAIN_RUNTIME,
229	4	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
230	4	"%s: invalid data size value out of bounds.",
231	4	function );
232
233	4	return( -1 );
234	4	}
235	240	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	2.50k	while( data_offset < data_size )
247	2.49k	{
248	2.49k	if( data_offset >= ( data_size - sizeof( fsext_attributes_entry_t ) ) )
249	15	{
250	15	libcerror_error_set(
251	15	error,
252	15	LIBCERROR_ERROR_DOMAIN_RUNTIME,
253	15	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
254	15	"%s: invalid data size value out of bounds.",
255	15	function );
256
257	15	goto on_error;
258	15	}
259		/* The list terminator consist of 8 0-byte values
260		*/
261	2.47k	if( memory_compare(
262	2.47k	&( data[ data_offset ] ),
263	2.47k	"\x00\x00\x00\x00\x00\x00\x00\x00",
264	2.47k	8 ) == 0 )
265	67	{
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	67	break;
281	67	}
282	2.40k	if( libfsext_attribute_values_initialize(
283	2.40k	&attribute_values,
284	2.40k	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	2.40k	if( libfsext_attribute_values_read_data(
297	2.40k	attribute_values,
298	2.40k	&( data[ data_offset ] ),
299	2.40k	data_size - data_offset,
300	2.40k	error ) != 1 )
301	32	{
302	32	libcerror_error_set(
303	32	error,
304	32	LIBCERROR_ERROR_DOMAIN_IO,
305	32	LIBCERROR_IO_ERROR_READ_FAILED,
306	32	"%s: unable to read attribute: %d values.",
307	32	function,
308	32	attribute_index );
309
310	32	goto on_error;
311	32	}
312	2.37k	data_offset += sizeof( fsext_attributes_entry_t ) + data[ data_offset ];
313
314	2.37k	alignment_padding_size = data_offset % 4;
315
316	2.37k	if( alignment_padding_size != 0 )
317	829	{
318	829	alignment_padding_size = 4 - alignment_padding_size;
319	829	}
320	2.37k	if( alignment_padding_size > 0 )
321	829	{
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	829	data_offset += alignment_padding_size;
336	829	}
337	2.37k	if( ( attribute_values->value_data_inode_number == 0 )
338	2.37k	&& ( attribute_values->value_data_size > 0 ) )
339	310	{
340	310	if( ( attribute_values->value_data_offset < sizeof( fsext_attributes_header_ext2_t ) )
341	310	\|\| ( attribute_values->value_data_offset >= data_size ) )
342	55	{
343	55	libcerror_error_set(
344	55	error,
345	55	LIBCERROR_ERROR_DOMAIN_RUNTIME,
346	55	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
347	55	"%s: invalid value data offset value out of bounds.",
348	55	function );
349
350	55	goto on_error;
351	55	}
352	255	if( attribute_values->value_data_size > ( data_size - attribute_values->value_data_offset ) )
353	53	{
354	53	libcerror_error_set(
355	53	error,
356	53	LIBCERROR_ERROR_DOMAIN_RUNTIME,
357	53	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
358	53	"%s: invalid value data size value out of bounds.",
359	53	function );
360
361	53	goto on_error;
362	53	}
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	202	attribute_values->value_data = (uint8_t *) memory_allocate(
378	202	sizeof( uint8_t ) * attribute_values->value_data_size );
379
380	202	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	202	if( memory_copy(
392	202	attribute_values->value_data,
393	202	&( data[ attribute_values->value_data_offset ] ),
394	202	(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	202	}
406	2.26k	if( libcdata_array_append_entry(
407	2.26k	extended_attributes,
408	2.26k	&entry_index,
409	2.26k	(intptr_t *) attribute_values,
410	2.26k	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	2.26k	attribute_values = NULL;
423
424	2.26k	attribute_index++;
425	2.26k	}
426	83	return( 1 );
427
428	155	on_error:
429	155	if( attribute_values != NULL )
430	140	{
431	140	libfsext_attribute_values_free(
432	140	&attribute_values,
433	140	NULL );
434	140	}
435	155	libcdata_array_empty(
436	155	extended_attributes,
437	155	(int ()(intptr_t , libcerror_error_t *)) &libfsext_attribute_values_free,
438	155	NULL );
439
440	155	return( -1 );
441	238	}
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	179	{
453	179	uint8_t *data = NULL;
454	179	static char *function = "libfsext_attributes_block_read_file_io_handle";
455	179	ssize_t read_count = 0;
456
457	179	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	179	if( ( io_handle->block_size == 0 )
469	179	\|\| ( 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	179	data = (uint8_t *) memory_allocate(
481	179	sizeof( uint8_t ) * io_handle->block_size );
482
483	179	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	179	read_count = libbfio_handle_read_buffer_at_offset(
505	179	file_io_handle,
506	179	data,
507	179	(size_t) io_handle->block_size,
508	179	file_offset,
509	179	error );
510
511	179	if( read_count != (ssize_t) io_handle->block_size )
512	88	{
513	88	libcerror_error_set(
514	88	error,
515	88	LIBCERROR_ERROR_DOMAIN_IO,
516	88	LIBCERROR_IO_ERROR_READ_FAILED,
517	88	"%s: unable to read extended attributes block data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
518	88	function,
519	88	file_offset,
520	88	file_offset );
521
522	88	goto on_error;
523	88	}
524	91	if( libfsext_attributes_block_read_header_data(
525	91	io_handle,
526	91	data,
527	91	(size_t) io_handle->block_size,
528	91	error ) != 1 )
529	85	{
530	85	libcerror_error_set(
531	85	error,
532	85	LIBCERROR_ERROR_DOMAIN_IO,
533	85	LIBCERROR_IO_ERROR_READ_FAILED,
534	85	"%s: unable to read extended attributes block header.",
535	85	function );
536
537	85	goto on_error;
538	85	}
539	6	if( libfsext_attributes_block_read_entries_data(
540	6	data,
541	6	(size_t) io_handle->block_size,
542	6	sizeof( fsext_attributes_header_ext2_t ),
543	6	extended_attributes,
544	6	error ) != 1 )
545	2	{
546	2	libcerror_error_set(
547	2	error,
548	2	LIBCERROR_ERROR_DOMAIN_IO,
549	2	LIBCERROR_IO_ERROR_READ_FAILED,
550	2	"%s: unable to read extended attributes block entries.",
551	2	function );
552
553	2	goto on_error;
554	2	}
555	4	memory_free(
556	4	data );
557
558	4	return( 1 );
559
560	175	on_error:
561	175	if( data != NULL )
562	175	{
563	175	memory_free(
564	175	data );
565	175	}
566	175	return( -1 );
567	6	}
568