/src/libfvde/libfvde/libfvde_physical_volume.c

Source
/*
 * Physical volume functions
 *
 * Copyright (C) 2011-2025, Omar Choudary <choudary.omar@gmail.com>,
 *                          Joachim Metz <joachim.metz@gmail.com>
 *
 * Refer to AUTHORS for acknowledgements.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include <common.h>
#include <memory.h>
#include <types.h>

#include "libfvde_libcerror.h"
#include "libfvde_libcthreads.h"
#include "libfvde_physical_volume.h"
#include "libfvde_physical_volume_descriptor.h"
#include "libfvde_types.h"
#include "libfvde_volume_header.h"

/* Creates a physical volume
 * Make sure the value physical_volume is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libfvde_physical_volume_initialize(
     libfvde_physical_volume_t **physical_volume,
     libfvde_volume_header_t *volume_header,
     libfvde_physical_volume_descriptor_t *physical_volume_descriptor,
     libcerror_error_t **error )
{
  libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                        = "libfvde_physical_volume_initialize";

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

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

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

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

    return( -1 );
  }
  internal_physical_volume = memory_allocate_structure(
                              libfvde_internal_physical_volume_t );

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

    goto on_error;
  }
  if( memory_set(
       internal_physical_volume,
       0,
       sizeof( libfvde_internal_physical_volume_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear physical volume.",
     function );

    memory_free(
     internal_physical_volume );

    return( -1 );
  }
#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_initialize(
       &( internal_physical_volume->read_write_lock ),
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to initialize read/write lock.",
     function );

    goto on_error;
  }
#endif
  internal_physical_volume->volume_header              = volume_header;
  internal_physical_volume->physical_volume_descriptor = physical_volume_descriptor;

  *physical_volume = (libfvde_physical_volume_t *) internal_physical_volume;

  return( 1 );

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

/* Frees a physical volume
 * Returns 1 if successful or -1 on error
 */
int libfvde_physical_volume_free(
     libfvde_physical_volume_t **physical_volume,
     libcerror_error_t **error )
{
  libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                        = "libfvde_physical_volume_free";
  int result                                                   = 1;

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

    return( -1 );
  }
  if( *physical_volume != NULL )
  {
    internal_physical_volume = (libfvde_internal_physical_volume_t *) *physical_volume;
    *physical_volume         = NULL;

#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
    if( libcthreads_read_write_lock_free(
         &( internal_physical_volume->read_write_lock ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free read/write lock.",
       function );

      result = -1;
    }
#endif
    /* The volume_header and physical_volume_descriptor references are freed elsewhere
     */
    memory_free(
     internal_physical_volume );
  }
  return( result );
}

/* Retrieves the physical volume identifier
 * The identifier is a UUID and is 16 bytes of size
 * Returns 1 if successful or -1 on error
 */
int libfvde_physical_volume_get_identifier(
     libfvde_physical_volume_t *physical_volume,
     uint8_t *uuid_data,
     size_t uuid_data_size,
     libcerror_error_t **error )
{
  libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                        = "libfvde_physical_volume_get_identifier";
  int result                                                   = 1;

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

    return( -1 );
  }
  internal_physical_volume = (libfvde_internal_physical_volume_t *) physical_volume;

#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_physical_volume->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  if( libfvde_physical_volume_descriptor_get_identifier(
       internal_physical_volume->physical_volume_descriptor,
       uuid_data,
       uuid_data_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve physical volume identifier from descriptor.",
     function );

    result = -1;
  }
#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_physical_volume->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( result );
}

/* Retrieves the volume encryption method
 * Returns 1 if successful or -1 on error
 */
int libfvde_physical_volume_get_encryption_method(
     libfvde_physical_volume_t *physical_volume,
     uint32_t *encryption_method,
     libcerror_error_t **error )
{
  libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                        = "libfvde_physical_volume_get_encryption_method";
  int result                                                   = 1;

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

    return( -1 );
  }
  internal_physical_volume = (libfvde_internal_physical_volume_t *) physical_volume;

#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_physical_volume->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  if( libfvde_volume_header_get_physical_volume_encryption_method(
       internal_physical_volume->volume_header,
       encryption_method,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve physical volume encryption method from volume header.",
     function );

    result = -1;
  }
#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_physical_volume->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( result );
}

/* Retrieves the volume size
 * Returns 1 if successful or -1 on error
 */
int libfvde_physical_volume_get_size(
     libfvde_physical_volume_t *physical_volume,
     size64_t *size,
     libcerror_error_t **error )
{
  libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
  static char *function                                        = "libfvde_physical_volume_get_size";
  int result                                                   = 1;

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

    return( -1 );
  }
  internal_physical_volume = (libfvde_internal_physical_volume_t *) physical_volume;

#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_physical_volume->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  if( libfvde_volume_header_get_physical_volume_size(
       internal_physical_volume->volume_header,
       size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve physical volume size from volume header.",
     function );

    result = -1;
  }
#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_physical_volume->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( result );
}


Coverage Report

Created: 2026-02-19 06:51

Line	Count	Source
1		/*
2		* Physical volume functions
3		*
4		* Copyright (C) 2011-2025, Omar Choudary <choudary.omar@gmail.com>,
5		* Joachim Metz <joachim.metz@gmail.com>
6		*
7		* Refer to AUTHORS for acknowledgements.
8		*
9		* This program is free software: you can redistribute it and/or modify
10		* it under the terms of the GNU Lesser General Public License as published by
11		* the Free Software Foundation, either version 3 of the License, or
12		* (at your option) any later version.
13		*
14		* This program is distributed in the hope that it will be useful,
15		* but WITHOUT ANY WARRANTY; without even the implied warranty of
16		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17		* GNU General Public License for more details.
18		*
19		* You should have received a copy of the GNU Lesser General Public License
20		* along with this program. If not, see <https://www.gnu.org/licenses/>.
21		*/
22
23		#include <common.h>
24		#include <memory.h>
25		#include <types.h>
26
27		#include "libfvde_libcerror.h"
28		#include "libfvde_libcthreads.h"
29		#include "libfvde_physical_volume.h"
30		#include "libfvde_physical_volume_descriptor.h"
31		#include "libfvde_types.h"
32		#include "libfvde_volume_header.h"
33
34		/* Creates a physical volume
35		* Make sure the value physical_volume is referencing, is set to NULL
36		* Returns 1 if successful or -1 on error
37		*/
38		int libfvde_physical_volume_initialize(
39		libfvde_physical_volume_t **physical_volume,
40		libfvde_volume_header_t *volume_header,
41		libfvde_physical_volume_descriptor_t *physical_volume_descriptor,
42		libcerror_error_t **error )
43	0	{
44	0	libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
45	0	static char *function = "libfvde_physical_volume_initialize";
46
47	0	if( physical_volume == NULL )
48	0	{
49	0	libcerror_error_set(
50	0	error,
51	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
52	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
53	0	"%s: invalid physical volume.",
54	0	function );
55
56	0	return( -1 );
57	0	}
58	0	if( *physical_volume != NULL )
59	0	{
60	0	libcerror_error_set(
61	0	error,
62	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
63	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
64	0	"%s: invalid physical volume value already set.",
65	0	function );
66
67	0	return( -1 );
68	0	}
69	0	if( volume_header == NULL )
70	0	{
71	0	libcerror_error_set(
72	0	error,
73	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
74	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
75	0	"%s: invalid volume header.",
76	0	function );
77
78	0	return( -1 );
79	0	}
80	0	if( physical_volume_descriptor == NULL )
81	0	{
82	0	libcerror_error_set(
83	0	error,
84	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
85	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
86	0	"%s: invalid physical volume descriptor.",
87	0	function );
88
89	0	return( -1 );
90	0	}
91	0	internal_physical_volume = memory_allocate_structure(
92	0	libfvde_internal_physical_volume_t );
93
94	0	if( internal_physical_volume == NULL )
95	0	{
96	0	libcerror_error_set(
97	0	error,
98	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
99	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
100	0	"%s: unable to create physical volume.",
101	0	function );
102
103	0	goto on_error;
104	0	}
105	0	if( memory_set(
106	0	internal_physical_volume,
107	0	0,
108	0	sizeof( libfvde_internal_physical_volume_t ) ) == NULL )
109	0	{
110	0	libcerror_error_set(
111	0	error,
112	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
113	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
114	0	"%s: unable to clear physical volume.",
115	0	function );
116
117	0	memory_free(
118	0	internal_physical_volume );
119
120	0	return( -1 );
121	0	}
122	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
123	0	if( libcthreads_read_write_lock_initialize(
124	0	&( internal_physical_volume->read_write_lock ),
125	0	error ) != 1 )
126	0	{
127	0	libcerror_error_set(
128	0	error,
129	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
130	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
131	0	"%s: unable to initialize read/write lock.",
132	0	function );
133
134	0	goto on_error;
135	0	}
136	0	#endif
137	0	internal_physical_volume->volume_header = volume_header;
138	0	internal_physical_volume->physical_volume_descriptor = physical_volume_descriptor;
139
140	0	physical_volume = (libfvde_physical_volume_t ) internal_physical_volume;
141
142	0	return( 1 );
143
144	0	on_error:
145	0	if( internal_physical_volume != NULL )
146	0	{
147	0	memory_free(
148	0	internal_physical_volume );
149	0	}
150	0	return( -1 );
151	0	}
152
153		/* Frees a physical volume
154		* Returns 1 if successful or -1 on error
155		*/
156		int libfvde_physical_volume_free(
157		libfvde_physical_volume_t **physical_volume,
158		libcerror_error_t **error )
159	0	{
160	0	libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
161	0	static char *function = "libfvde_physical_volume_free";
162	0	int result = 1;
163
164	0	if( physical_volume == NULL )
165	0	{
166	0	libcerror_error_set(
167	0	error,
168	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
169	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
170	0	"%s: invalid physical volume.",
171	0	function );
172
173	0	return( -1 );
174	0	}
175	0	if( *physical_volume != NULL )
176	0	{
177	0	internal_physical_volume = (libfvde_internal_physical_volume_t ) physical_volume;
178	0	*physical_volume = NULL;
179
180	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
181	0	if( libcthreads_read_write_lock_free(
182	0	&( internal_physical_volume->read_write_lock ),
183	0	error ) != 1 )
184	0	{
185	0	libcerror_error_set(
186	0	error,
187	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
188	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
189	0	"%s: unable to free read/write lock.",
190	0	function );
191
192	0	result = -1;
193	0	}
194	0	#endif
195		/* The volume_header and physical_volume_descriptor references are freed elsewhere
196		*/
197	0	memory_free(
198	0	internal_physical_volume );
199	0	}
200	0	return( result );
201	0	}
202
203		/* Retrieves the physical volume identifier
204		* The identifier is a UUID and is 16 bytes of size
205		* Returns 1 if successful or -1 on error
206		*/
207		int libfvde_physical_volume_get_identifier(
208		libfvde_physical_volume_t *physical_volume,
209		uint8_t *uuid_data,
210		size_t uuid_data_size,
211		libcerror_error_t **error )
212	0	{
213	0	libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
214	0	static char *function = "libfvde_physical_volume_get_identifier";
215	0	int result = 1;
216
217	0	if( physical_volume == 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 physical volume.",
224	0	function );
225
226	0	return( -1 );
227	0	}
228	0	internal_physical_volume = (libfvde_internal_physical_volume_t *) physical_volume;
229
230	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
231	0	if( libcthreads_read_write_lock_grab_for_read(
232	0	internal_physical_volume->read_write_lock,
233	0	error ) != 1 )
234	0	{
235	0	libcerror_error_set(
236	0	error,
237	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
238	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
239	0	"%s: unable to grab read/write lock for reading.",
240	0	function );
241
242	0	return( -1 );
243	0	}
244	0	#endif
245	0	if( libfvde_physical_volume_descriptor_get_identifier(
246	0	internal_physical_volume->physical_volume_descriptor,
247	0	uuid_data,
248	0	uuid_data_size,
249	0	error ) != 1 )
250	0	{
251	0	libcerror_error_set(
252	0	error,
253	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
254	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
255	0	"%s: unable to retrieve physical volume identifier from descriptor.",
256	0	function );
257
258	0	result = -1;
259	0	}
260	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
261	0	if( libcthreads_read_write_lock_release_for_read(
262	0	internal_physical_volume->read_write_lock,
263	0	error ) != 1 )
264	0	{
265	0	libcerror_error_set(
266	0	error,
267	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
268	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
269	0	"%s: unable to release read/write lock for reading.",
270	0	function );
271
272	0	return( -1 );
273	0	}
274	0	#endif
275	0	return( result );
276	0	}
277
278		/* Retrieves the volume encryption method
279		* Returns 1 if successful or -1 on error
280		*/
281		int libfvde_physical_volume_get_encryption_method(
282		libfvde_physical_volume_t *physical_volume,
283		uint32_t *encryption_method,
284		libcerror_error_t **error )
285	0	{
286	0	libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
287	0	static char *function = "libfvde_physical_volume_get_encryption_method";
288	0	int result = 1;
289
290	0	if( physical_volume == NULL )
291	0	{
292	0	libcerror_error_set(
293	0	error,
294	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
295	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
296	0	"%s: invalid physical volume.",
297	0	function );
298
299	0	return( -1 );
300	0	}
301	0	internal_physical_volume = (libfvde_internal_physical_volume_t *) physical_volume;
302
303	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
304	0	if( libcthreads_read_write_lock_grab_for_read(
305	0	internal_physical_volume->read_write_lock,
306	0	error ) != 1 )
307	0	{
308	0	libcerror_error_set(
309	0	error,
310	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
311	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
312	0	"%s: unable to grab read/write lock for reading.",
313	0	function );
314
315	0	return( -1 );
316	0	}
317	0	#endif
318	0	if( libfvde_volume_header_get_physical_volume_encryption_method(
319	0	internal_physical_volume->volume_header,
320	0	encryption_method,
321	0	error ) != 1 )
322	0	{
323	0	libcerror_error_set(
324	0	error,
325	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
326	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
327	0	"%s: unable to retrieve physical volume encryption method from volume header.",
328	0	function );
329
330	0	result = -1;
331	0	}
332	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
333	0	if( libcthreads_read_write_lock_release_for_read(
334	0	internal_physical_volume->read_write_lock,
335	0	error ) != 1 )
336	0	{
337	0	libcerror_error_set(
338	0	error,
339	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
340	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
341	0	"%s: unable to release read/write lock for reading.",
342	0	function );
343
344	0	return( -1 );
345	0	}
346	0	#endif
347	0	return( result );
348	0	}
349
350		/* Retrieves the volume size
351		* Returns 1 if successful or -1 on error
352		*/
353		int libfvde_physical_volume_get_size(
354		libfvde_physical_volume_t *physical_volume,
355		size64_t *size,
356		libcerror_error_t **error )
357	0	{
358	0	libfvde_internal_physical_volume_t *internal_physical_volume = NULL;
359	0	static char *function = "libfvde_physical_volume_get_size";
360	0	int result = 1;
361
362	0	if( physical_volume == NULL )
363	0	{
364	0	libcerror_error_set(
365	0	error,
366	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
367	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
368	0	"%s: invalid physical volume.",
369	0	function );
370
371	0	return( -1 );
372	0	}
373	0	internal_physical_volume = (libfvde_internal_physical_volume_t *) physical_volume;
374
375	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
376	0	if( libcthreads_read_write_lock_grab_for_read(
377	0	internal_physical_volume->read_write_lock,
378	0	error ) != 1 )
379	0	{
380	0	libcerror_error_set(
381	0	error,
382	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
383	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
384	0	"%s: unable to grab read/write lock for reading.",
385	0	function );
386
387	0	return( -1 );
388	0	}
389	0	#endif
390	0	if( libfvde_volume_header_get_physical_volume_size(
391	0	internal_physical_volume->volume_header,
392	0	size,
393	0	error ) != 1 )
394	0	{
395	0	libcerror_error_set(
396	0	error,
397	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
398	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
399	0	"%s: unable to retrieve physical volume size from volume header.",
400	0	function );
401
402	0	result = -1;
403	0	}
404	0	#if defined( HAVE_LIBFVDE_MULTI_THREAD_SUPPORT )
405	0	if( libcthreads_read_write_lock_release_for_read(
406	0	internal_physical_volume->read_write_lock,
407	0	error ) != 1 )
408	0	{
409	0	libcerror_error_set(
410	0	error,
411	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
412	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
413	0	"%s: unable to release read/write lock for reading.",
414	0	function );
415
416	0	return( -1 );
417	0	}
418	0	#endif
419	0	return( result );
420	0	}
421