/src/libbde/libbde/libbde_external_key.c

Source
/*
 * External Key metadata entry functions
 *
 * Copyright (C) 2011-2026, 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 <system_string.h>
#include <types.h>

#include "libbde_debug.h"
#include "libbde_definitions.h"
#include "libbde_external_key.h"
#include "libbde_io_handle.h"
#include "libbde_key.h"
#include "libbde_libcdata.h"
#include "libbde_libcerror.h"
#include "libbde_libcnotify.h"
#include "libbde_libfdatetime.h"
#include "libbde_libfguid.h"
#include "libbde_metadata_entry.h"

#include "bde_metadata.h"

/* Creates an external key
 * Make sure the value external key is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libbde_external_key_initialize(
     libbde_external_key_t **external_key,
     libcerror_error_t **error )
{
  static char *function = "libbde_external_key_initialize";

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

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

    return( -1 );
  }
  *external_key = memory_allocate_structure(
                   libbde_external_key_t );

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

    goto on_error;
  }
  if( memory_set(
       *external_key,
       0,
       sizeof( libbde_external_key_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear external key.",
     function );

    goto on_error;
  }
  if( libcdata_array_initialize(
       &( ( *external_key )->entries_array ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create entries array.",
     function );

    goto on_error;
  }
  return( 1 );

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

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

/* Frees an external key
 * Returns 1 if successful or -1 on error
 */
int libbde_external_key_free(
     libbde_external_key_t **external_key,
     libcerror_error_t **error )
{
  static char *function = "libbde_external_key_free";
  int result            = 1;

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

    return( -1 );
  }
  if( *external_key != NULL )
  {
    if( ( *external_key )->key != NULL )
    {
      if( libbde_key_free(
           &( ( *external_key )->key ),
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
         "%s: unable to free key.",
         function );

        result = -1;
      }
    }
    if( libcdata_array_free(
         &( ( *external_key )->entries_array ),
         (int(*)(intptr_t **, libcerror_error_t **)) &libbde_metadata_entry_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free entries array.",
       function );

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

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

/* Reads a external key from the metadata entry
 * Returns 1 if successful or -1 on error
 */
int libbde_external_key_read(
     libbde_external_key_t *external_key,
     libbde_metadata_entry_t *metadata_entry,
     libcerror_error_t **error )
{
  libbde_key_t *key                                = NULL;
  libbde_metadata_entry_t *property_metadata_entry = NULL;
  uint8_t *value_data                              = NULL;
  static char *function                            = "libbde_external_key_read";
  size_t value_data_size                           = 0;
  ssize_t read_count                               = 0;
  int property_metadata_entry_index                = 0;

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

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

    return( -1 );
  }
  if( metadata_entry->value_type != LIBBDE_VALUE_TYPE_EXTERNAL_KEY )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
     "%s: invalid metadata entry - unsupported value type: 0x%04" PRIx16 ".",
     function,
     metadata_entry->value_type );

    return( -1 );
  }
  value_data      = metadata_entry->value_data;
  value_data_size = metadata_entry->value_data_size;

  if( value_data_size < sizeof( bde_metadata_entry_external_key_header_t ) )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
     "%s: value data size value out of bounds.",
     function );

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

    goto on_error;
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    if( libbde_debug_print_guid_value(
         function,
         "identifier\t\t\t\t\t",
         ( (bde_metadata_entry_external_key_header_t *) value_data )->identifier,
         16,
         LIBFGUID_ENDIAN_LITTLE,
         LIBFGUID_STRING_FORMAT_FLAG_USE_LOWER_CASE,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_PRINT_FAILED,
       "%s: unable to print GUID value.",
       function );

      goto on_error;
    }
    if( libbde_debug_print_filetime_value(
         function,
         "modification time\t\t\t\t",
         ( (bde_metadata_entry_external_key_header_t *) value_data )->modification_time,
         8,
         LIBFDATETIME_ENDIAN_LITTLE,
         LIBFDATETIME_STRING_FORMAT_TYPE_CTIME | LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_PRINT_FAILED,
       "%s: unable to print FILETIME value.",
       function );

      goto on_error;
    }
    libcnotify_printf(
     "\n" );
  }
#endif
  value_data      += sizeof( bde_metadata_entry_external_key_header_t );
  value_data_size -= sizeof( bde_metadata_entry_external_key_header_t );

  while( value_data_size >= sizeof( bde_metadata_entry_v1_t ) )
  {
    if( memory_compare(
         value_data,
         libbde_metadata_entry_empty,
         sizeof( bde_metadata_entry_v1_t ) ) == 0 )
    {
      break;
    }
    if( libbde_metadata_entry_initialize(
         &property_metadata_entry,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
       "%s: unable to create property metadata entry.",
       function );

      goto on_error;
    }
    read_count = libbde_metadata_entry_read(
            property_metadata_entry,
            value_data,
            value_data_size,
            error );

    if( read_count == -1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_IO,
       LIBCERROR_IO_ERROR_READ_FAILED,
       "%s: unable to read property metadata entry.",
       function );

      goto on_error;
    }
    value_data      += read_count;
    value_data_size -= read_count;

    if( property_metadata_entry->value_type == LIBBDE_VALUE_TYPE_KEY )
    {
      if( libbde_key_initialize(
           &key,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
         "%s: unable to create key.",
         function );

        goto on_error;
      }
      if( libbde_key_read(
           key,
           property_metadata_entry,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_IO,
         LIBCERROR_IO_ERROR_READ_FAILED,
         "%s: unable to read key metadata entry.",
         function );

        goto on_error;
      }
      if( external_key->key == NULL )
      {
        external_key->key = key;

        key = NULL;
      }
      if( key != NULL )
      {
        if( libbde_key_free(
             &key,
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
           "%s: unable to free key.",
           function );

          goto on_error;
        }
      }
    }
    else if( property_metadata_entry->value_type == LIBBDE_VALUE_TYPE_UNICODE_STRING )
    {
#if defined( HAVE_DEBUG_OUTPUT )
      if( libbde_metadata_entry_read_string(
           property_metadata_entry,
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_IO,
         LIBCERROR_IO_ERROR_READ_FAILED,
         "%s: unable to read string from property metadata entry.",
         function );

        goto on_error;
      }
#endif
      if( external_key->string_entry == NULL )
      {
        external_key->string_entry = property_metadata_entry;
      }
    }
    if( libcdata_array_append_entry(
         external_key->entries_array,
         &property_metadata_entry_index,
         (intptr_t *) property_metadata_entry,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
       "%s: unable to append property metadata entry to entries array.",
       function );

      goto on_error;
    }
    property_metadata_entry = NULL;
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    if( value_data_size > 0 )
    {
      libcnotify_printf(
       "%s: trailing data:\n",
       function );
      libcnotify_print_data(
       value_data,
       value_data_size,
       LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
    }
  }
#endif
  return( 1 );

on_error:
  if( key != NULL )
  {
    libbde_key_free(
     &key,
     NULL );
  }
  if( property_metadata_entry != NULL )
  {
    libbde_metadata_entry_free(
     &property_metadata_entry,
     NULL );
  }
  return( -1 );
}


Coverage Report

Created: 2026-07-25 07:30

Line	Count	Source
1		/*
2		* External Key metadata entry functions
3		*
4		* Copyright (C) 2011-2026, 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 <system_string.h>
26		#include <types.h>
27
28		#include "libbde_debug.h"
29		#include "libbde_definitions.h"
30		#include "libbde_external_key.h"
31		#include "libbde_io_handle.h"
32		#include "libbde_key.h"
33		#include "libbde_libcdata.h"
34		#include "libbde_libcerror.h"
35		#include "libbde_libcnotify.h"
36		#include "libbde_libfdatetime.h"
37		#include "libbde_libfguid.h"
38		#include "libbde_metadata_entry.h"
39
40		#include "bde_metadata.h"
41
42		/* Creates an external key
43		* Make sure the value external key is referencing, is set to NULL
44		* Returns 1 if successful or -1 on error
45		*/
46		int libbde_external_key_initialize(
47		libbde_external_key_t **external_key,
48		libcerror_error_t **error )
49	3.10k	{
50	3.10k	static char *function = "libbde_external_key_initialize";
51
52	3.10k	if( external_key == NULL )
53	0	{
54	0	libcerror_error_set(
55	0	error,
56	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
57	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
58	0	"%s: invalid external key.",
59	0	function );
60
61	0	return( -1 );
62	0	}
63	3.10k	if( *external_key != NULL )
64	0	{
65	0	libcerror_error_set(
66	0	error,
67	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
68	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
69	0	"%s: invalid external key value already set.",
70	0	function );
71
72	0	return( -1 );
73	0	}
74	3.10k	*external_key = memory_allocate_structure(
75	3.10k	libbde_external_key_t );
76
77	3.10k	if( *external_key == NULL )
78	0	{
79	0	libcerror_error_set(
80	0	error,
81	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
82	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
83	0	"%s: unable to create external key.",
84	0	function );
85
86	0	goto on_error;
87	0	}
88	3.10k	if( memory_set(
89	3.10k	*external_key,
90	3.10k	0,
91	3.10k	sizeof( libbde_external_key_t ) ) == NULL )
92	0	{
93	0	libcerror_error_set(
94	0	error,
95	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
96	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
97	0	"%s: unable to clear external key.",
98	0	function );
99
100	0	goto on_error;
101	0	}
102	3.10k	if( libcdata_array_initialize(
103	3.10k	&( ( *external_key )->entries_array ),
104	3.10k	0,
105	3.10k	error ) != 1 )
106	0	{
107	0	libcerror_error_set(
108	0	error,
109	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
110	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
111	0	"%s: unable to create entries array.",
112	0	function );
113
114	0	goto on_error;
115	0	}
116	3.10k	return( 1 );
117
118	0	on_error:
119	0	if( *external_key != NULL )
120	0	{
121	0	memory_free(
122	0	*external_key );
123
124	0	*external_key = NULL;
125	0	}
126	0	return( -1 );
127	3.10k	}
128
129		/* Frees an external key
130		* Returns 1 if successful or -1 on error
131		*/
132		int libbde_external_key_free(
133		libbde_external_key_t **external_key,
134		libcerror_error_t **error )
135	3.10k	{
136	3.10k	static char *function = "libbde_external_key_free";
137	3.10k	int result = 1;
138
139	3.10k	if( external_key == NULL )
140	0	{
141	0	libcerror_error_set(
142	0	error,
143	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
144	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
145	0	"%s: invalid external key.",
146	0	function );
147
148	0	return( -1 );
149	0	}
150	3.10k	if( *external_key != NULL )
151	3.10k	{
152	3.10k	if( ( *external_key )->key != NULL )
153	133	{
154	133	if( libbde_key_free(
155	133	&( ( *external_key )->key ),
156	133	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 key.",
163	0	function );
164
165	0	result = -1;
166	0	}
167	133	}
168	3.10k	if( libcdata_array_free(
169	3.10k	&( ( *external_key )->entries_array ),
170	3.10k	(int()(intptr_t , libcerror_error_t *)) &libbde_metadata_entry_free,
171	3.10k	error ) != 1 )
172	0	{
173	0	libcerror_error_set(
174	0	error,
175	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
176	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
177	0	"%s: unable to free entries array.",
178	0	function );
179
180	0	result = -1;
181	0	}
182	3.10k	memory_free(
183	3.10k	*external_key );
184
185	3.10k	*external_key = NULL;
186	3.10k	}
187	3.10k	return( result );
188	3.10k	}
189
190		/* Reads a external key from the metadata entry
191		* Returns 1 if successful or -1 on error
192		*/
193		int libbde_external_key_read(
194		libbde_external_key_t *external_key,
195		libbde_metadata_entry_t *metadata_entry,
196		libcerror_error_t **error )
197	3.10k	{
198	3.10k	libbde_key_t *key = NULL;
199	3.10k	libbde_metadata_entry_t *property_metadata_entry = NULL;
200	3.10k	uint8_t *value_data = NULL;
201	3.10k	static char *function = "libbde_external_key_read";
202	3.10k	size_t value_data_size = 0;
203	3.10k	ssize_t read_count = 0;
204	3.10k	int property_metadata_entry_index = 0;
205
206	3.10k	if( external_key == NULL )
207	0	{
208	0	libcerror_error_set(
209	0	error,
210	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
211	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
212	0	"%s: invalid external key.",
213	0	function );
214
215	0	return( -1 );
216	0	}
217	3.10k	if( metadata_entry == NULL )
218	0	{
219	0	libcerror_error_set(
220	0	error,
221	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
222	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
223	0	"%s: invalid metadata entry.",
224	0	function );
225
226	0	return( -1 );
227	0	}
228	3.10k	if( metadata_entry->value_type != LIBBDE_VALUE_TYPE_EXTERNAL_KEY )
229	18	{
230	18	libcerror_error_set(
231	18	error,
232	18	LIBCERROR_ERROR_DOMAIN_RUNTIME,
233	18	LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
234	18	"%s: invalid metadata entry - unsupported value type: 0x%04" PRIx16 ".",
235	18	function,
236	18	metadata_entry->value_type );
237
238	18	return( -1 );
239	18	}
240	3.08k	value_data = metadata_entry->value_data;
241	3.08k	value_data_size = metadata_entry->value_data_size;
242
243	3.08k	if( value_data_size < sizeof( bde_metadata_entry_external_key_header_t ) )
244	4	{
245	4	libcerror_error_set(
246	4	error,
247	4	LIBCERROR_ERROR_DOMAIN_RUNTIME,
248	4	LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
249	4	"%s: value data size value out of bounds.",
250	4	function );
251
252	4	return( -1 );
253	4	}
254	3.08k	if( memory_copy(
255	3.08k	external_key->identifier,
256	3.08k	( (bde_metadata_entry_external_key_header_t *) value_data )->identifier,
257	3.08k	16 ) == NULL )
258	0	{
259	0	libcerror_error_set(
260	0	error,
261	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
262	0	LIBCERROR_MEMORY_ERROR_COPY_FAILED,
263	0	"%s: unable to copy volume identifier.",
264	0	function );
265
266	0	goto on_error;
267	0	}
268		#if defined( HAVE_DEBUG_OUTPUT )
269		if( libcnotify_verbose != 0 )
270		{
271		if( libbde_debug_print_guid_value(
272		function,
273		"identifier\t\t\t\t\t",
274		( (bde_metadata_entry_external_key_header_t *) value_data )->identifier,
275		16,
276		LIBFGUID_ENDIAN_LITTLE,
277		LIBFGUID_STRING_FORMAT_FLAG_USE_LOWER_CASE,
278		error ) != 1 )
279		{
280		libcerror_error_set(
281		error,
282		LIBCERROR_ERROR_DOMAIN_RUNTIME,
283		LIBCERROR_RUNTIME_ERROR_PRINT_FAILED,
284		"%s: unable to print GUID value.",
285		function );
286
287		goto on_error;
288		}
289		if( libbde_debug_print_filetime_value(
290		function,
291		"modification time\t\t\t\t",
292		( (bde_metadata_entry_external_key_header_t *) value_data )->modification_time,
293		8,
294		LIBFDATETIME_ENDIAN_LITTLE,
295		LIBFDATETIME_STRING_FORMAT_TYPE_CTIME \| LIBFDATETIME_STRING_FORMAT_FLAG_DATE_TIME_NANO_SECONDS,
296		error ) != 1 )
297		{
298		libcerror_error_set(
299		error,
300		LIBCERROR_ERROR_DOMAIN_RUNTIME,
301		LIBCERROR_RUNTIME_ERROR_PRINT_FAILED,
302		"%s: unable to print FILETIME value.",
303		function );
304
305		goto on_error;
306		}
307		libcnotify_printf(
308		"\n" );
309		}
310		#endif
311	3.08k	value_data += sizeof( bde_metadata_entry_external_key_header_t );
312	3.08k	value_data_size -= sizeof( bde_metadata_entry_external_key_header_t );
313
314	7.77k	while( value_data_size >= sizeof( bde_metadata_entry_v1_t ) )
315	4.95k	{
316	4.95k	if( memory_compare(
317	4.95k	value_data,
318	4.95k	libbde_metadata_entry_empty,
319	4.95k	sizeof( bde_metadata_entry_v1_t ) ) == 0 )
320	242	{
321	242	break;
322	242	}
323	4.71k	if( libbde_metadata_entry_initialize(
324	4.71k	&property_metadata_entry,
325	4.71k	error ) != 1 )
326	0	{
327	0	libcerror_error_set(
328	0	error,
329	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
330	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
331	0	"%s: unable to create property metadata entry.",
332	0	function );
333
334	0	goto on_error;
335	0	}
336	4.71k	read_count = libbde_metadata_entry_read(
337	4.71k	property_metadata_entry,
338	4.71k	value_data,
339	4.71k	value_data_size,
340	4.71k	error );
341
342	4.71k	if( read_count == -1 )
343	20	{
344	20	libcerror_error_set(
345	20	error,
346	20	LIBCERROR_ERROR_DOMAIN_IO,
347	20	LIBCERROR_IO_ERROR_READ_FAILED,
348	20	"%s: unable to read property metadata entry.",
349	20	function );
350
351	20	goto on_error;
352	20	}
353	4.69k	value_data += read_count;
354	4.69k	value_data_size -= read_count;
355
356	4.69k	if( property_metadata_entry->value_type == LIBBDE_VALUE_TYPE_KEY )
357	680	{
358	680	if( libbde_key_initialize(
359	680	&key,
360	680	error ) != 1 )
361	0	{
362	0	libcerror_error_set(
363	0	error,
364	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
365	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
366	0	"%s: unable to create key.",
367	0	function );
368
369	0	goto on_error;
370	0	}
371	680	if( libbde_key_read(
372	680	key,
373	680	property_metadata_entry,
374	680	error ) != 1 )
375	1	{
376	1	libcerror_error_set(
377	1	error,
378	1	LIBCERROR_ERROR_DOMAIN_IO,
379	1	LIBCERROR_IO_ERROR_READ_FAILED,
380	1	"%s: unable to read key metadata entry.",
381	1	function );
382
383	1	goto on_error;
384	1	}
385	679	if( external_key->key == NULL )
386	133	{
387	133	external_key->key = key;
388
389	133	key = NULL;
390	133	}
391	679	if( key != NULL )
392	546	{
393	546	if( libbde_key_free(
394	546	&key,
395	546	error ) != 1 )
396	0	{
397	0	libcerror_error_set(
398	0	error,
399	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
400	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
401	0	"%s: unable to free key.",
402	0	function );
403
404	0	goto on_error;
405	0	}
406	546	}
407	679	}
408	4.01k	else if( property_metadata_entry->value_type == LIBBDE_VALUE_TYPE_UNICODE_STRING )
409	1.00k	{
410		#if defined( HAVE_DEBUG_OUTPUT )
411		if( libbde_metadata_entry_read_string(
412		property_metadata_entry,
413		error ) != 1 )
414		{
415		libcerror_error_set(
416		error,
417		LIBCERROR_ERROR_DOMAIN_IO,
418		LIBCERROR_IO_ERROR_READ_FAILED,
419		"%s: unable to read string from property metadata entry.",
420		function );
421
422		goto on_error;
423		}
424		#endif
425	1.00k	if( external_key->string_entry == NULL )
426	429	{
427	429	external_key->string_entry = property_metadata_entry;
428	429	}
429	1.00k	}
430	4.69k	if( libcdata_array_append_entry(
431	4.69k	external_key->entries_array,
432	4.69k	&property_metadata_entry_index,
433	4.69k	(intptr_t *) property_metadata_entry,
434	4.69k	error ) != 1 )
435	0	{
436	0	libcerror_error_set(
437	0	error,
438	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
439	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
440	0	"%s: unable to append property metadata entry to entries array.",
441	0	function );
442
443	0	goto on_error;
444	0	}
445	4.69k	property_metadata_entry = NULL;
446	4.69k	}
447		#if defined( HAVE_DEBUG_OUTPUT )
448		if( libcnotify_verbose != 0 )
449		{
450		if( value_data_size > 0 )
451		{
452		libcnotify_printf(
453		"%s: trailing data:\n",
454		function );
455		libcnotify_print_data(
456		value_data,
457		value_data_size,
458		LIBCNOTIFY_PRINT_DATA_FLAG_GROUP_DATA );
459		}
460		}
461		#endif
462	3.06k	return( 1 );
463
464	21	on_error:
465	21	if( key != NULL )
466	1	{
467	1	libbde_key_free(
468	1	&key,
469	1	NULL );
470	1	}
471	21	if( property_metadata_entry != NULL )
472	21	{
473	21	libbde_metadata_entry_free(
474	21	&property_metadata_entry,
475		NULL );
476	21	}
477	21	return( -1 );
478	3.08k	}
479