/src/libewf/libewf/libewf_hash_sections.c

Source (jump to first uncovered line)
/*
 * Hash sections functions
 *
 * Copyright (C) 2006-2023, 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 <narrow_string.h>

#include "libewf_libcerror.h"
#include "libewf_hash_sections.h"
#include "libewf_hash_values.h"

/* Creates hash sections
 * Make sure the value hash_sections is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libewf_hash_sections_initialize(
     libewf_hash_sections_t **hash_sections,
     libcerror_error_t **error )
{
  static char *function = "libewf_hash_sections_initialize";

  if( hash_sections == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid hash sections.",
     function );

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

    return( -1 );
  }
  *hash_sections = memory_allocate_structure(
                    libewf_hash_sections_t );

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

    goto on_error;
  }
  if( memory_set(
       *hash_sections,
       0,
       sizeof( libewf_hash_sections_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear hash sections.",
     function );

    goto on_error;
  }
  return( 1 );

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

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

/* Frees hash sections
 * Returns 1 if successful or -1 on error
 */
int libewf_hash_sections_free(
     libewf_hash_sections_t **hash_sections,
     libcerror_error_t **error )
{
        static char *function = "libewf_hash_sections_free";

  if( hash_sections == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid hash sections.",
     function );

    return( -1 );
  }
  if( *hash_sections != NULL )
  {
    if( ( *hash_sections )->xhash != NULL )
    {
      memory_free(
       ( *hash_sections )->xhash );
    }
    memory_free(
     *hash_sections );

    *hash_sections = NULL;
  }
  return( 1 );
}

/* Clones the hash sections
 * Returns 1 if successful or -1 on error
 */
int libewf_hash_sections_clone(
     libewf_hash_sections_t **destination_hash_sections,
     libewf_hash_sections_t *source_hash_sections,
     libcerror_error_t **error )
{
  static char *function = "libewf_hash_sections_clone";

  if( destination_hash_sections == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid destination hash sections.",
     function );

    return( -1 );
  }
  if( *destination_hash_sections != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: invalid destination hash sections already set.",
     function );

    return( -1 );
  }
  if( source_hash_sections == NULL )
  {
    *destination_hash_sections = NULL;

    return( 1 );
  }
  *destination_hash_sections = memory_allocate_structure(
                                libewf_hash_sections_t );

  if( *destination_hash_sections == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create destination hash sections.",
     function );

    goto on_error;
  }
  if( memory_copy(
       *destination_hash_sections,
       source_hash_sections,
       sizeof( libewf_hash_sections_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_COPY_FAILED,
     "%s: unable to copy source to destination hash sections.",
     function );

    memory_free(
     *destination_hash_sections );

    *destination_hash_sections = NULL;

    return( -1 );
  }
  ( *destination_hash_sections )->xhash      = NULL;
  ( *destination_hash_sections )->xhash_size = 0;

  if( source_hash_sections->xhash != NULL )
  {
    ( *destination_hash_sections )->xhash = (uint8_t *) memory_allocate(
                                                         sizeof( uint8_t ) * source_hash_sections->xhash_size );

    if( ( *destination_hash_sections )->xhash == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_MEMORY,
       LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
       "%s: unable to create destination xhash.",
       function );

      goto on_error;
    }
    if( memory_copy(
         ( *destination_hash_sections )->xhash,
         source_hash_sections->xhash,
         sizeof( uint8_t ) * source_hash_sections->xhash_size ) == NULL )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_MEMORY,
       LIBCERROR_MEMORY_ERROR_COPY_FAILED,
       "%s: unable to copy source to destination xhash.",
       function );

      goto on_error;
    }
    ( *destination_hash_sections )->xhash_size = source_hash_sections->xhash_size;
  }
  return( 1 );

on_error:
  if( *destination_hash_sections != NULL )
  {
    if( ( *destination_hash_sections )->xhash != NULL )
    {
      memory_free(
       ( *destination_hash_sections )->xhash );
    }
    memory_free(
     *destination_hash_sections );

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

/* Sets the digest specified by the identifier from the hash values
 * Returns 1 if successful or -1 on error
 */
int libewf_hash_sections_set_digest_from_hash_values(
     libewf_hash_sections_t *hash_sections,
     const uint8_t *identifier,
     size_t identifier_length,
     libfvalue_table_t *hash_values,
     libcerror_error_t **error )
{
  static char *function = "libewf_hash_sections_set_digest_from_hash_values";

  if( hash_sections == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid hash sections.",
     function );

    return( -1 );
  }
  if( ( identifier_length == 3 )
   && ( narrow_string_compare(
         (char *) identifier,
         "MD5",
         identifier_length ) == 0 ) )
  {
    if( libewf_hash_values_generate_md5_hash(
         hash_values,
         hash_sections->md5_hash,
         16,
         &( hash_sections->md5_hash_set ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_SET_FAILED,
       "%s: unable to parse MD5 hash value for its value.",
       function );

      return( -1 );
    }
    if( libewf_hash_values_generate_md5_hash(
         hash_values,
         hash_sections->md5_digest,
         16,
         &( hash_sections->md5_digest_set ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_SET_FAILED,
       "%s: unable to parse MD5 hash value for its value.",
       function );

      return( -1 );
    }
  }
  else if( ( identifier_length == 4 )
        && ( narrow_string_compare(
        (char *) identifier,
        "SHA1",
        identifier_length ) == 0 ) )
  {
    if( libewf_hash_values_generate_sha1_hash(
         hash_values,
         hash_sections->sha1_hash,
         20,
         &( hash_sections->sha1_hash_set ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_SET_FAILED,
       "%s: unable to parse SHA1 hash value for its value.",
       function );

      return( -1 );
    }
    if( libewf_hash_values_generate_sha1_hash(
         hash_values,
         hash_sections->sha1_digest,
         20,
         &( hash_sections->sha1_digest_set ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_SET_FAILED,
       "%s: unable to parse SHA1 hash value for its value.",
       function );

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


Coverage Report

Created: 2024-02-25 07:20

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Hash sections functions
3		*
4		* Copyright (C) 2006-2023, 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 <memory.h>
24		#include <narrow_string.h>
25
26		#include "libewf_libcerror.h"
27		#include "libewf_hash_sections.h"
28		#include "libewf_hash_values.h"
29
30		/* Creates hash sections
31		* Make sure the value hash_sections is referencing, is set to NULL
32		* Returns 1 if successful or -1 on error
33		*/
34		int libewf_hash_sections_initialize(
35		libewf_hash_sections_t **hash_sections,
36		libcerror_error_t **error )
37	3.12k	{
38	3.12k	static char *function = "libewf_hash_sections_initialize";
39
40	3.12k	if( hash_sections == NULL )
41	0	{
42	0	libcerror_error_set(
43	0	error,
44	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
45	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
46	0	"%s: invalid hash sections.",
47	0	function );
48
49	0	return( -1 );
50	0	}
51	3.12k	if( *hash_sections != NULL )
52	0	{
53	0	libcerror_error_set(
54	0	error,
55	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
56	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
57	0	"%s: invalid hash sections value already set.",
58	0	function );
59
60	0	return( -1 );
61	0	}
62	3.12k	*hash_sections = memory_allocate_structure(
63	3.12k	libewf_hash_sections_t );
64
65	3.12k	if( *hash_sections == NULL )
66	0	{
67	0	libcerror_error_set(
68	0	error,
69	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
70	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
71	0	"%s: unable to create hash sections.",
72	0	function );
73
74	0	goto on_error;
75	0	}
76	3.12k	if( memory_set(
77	3.12k	*hash_sections,
78	3.12k	0,
79	3.12k	sizeof( libewf_hash_sections_t ) ) == NULL )
80	0	{
81	0	libcerror_error_set(
82	0	error,
83	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
84	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
85	0	"%s: unable to clear hash sections.",
86	0	function );
87
88	0	goto on_error;
89	0	}
90	3.12k	return( 1 );
91
92	0	on_error:
93	0	if( *hash_sections != NULL )
94	0	{
95	0	memory_free(
96	0	*hash_sections );
97
98	0	*hash_sections = NULL;
99	0	}
100	0	return( -1 );
101	3.12k	}
102
103		/* Frees hash sections
104		* Returns 1 if successful or -1 on error
105		*/
106		int libewf_hash_sections_free(
107		libewf_hash_sections_t **hash_sections,
108		libcerror_error_t **error )
109	3.12k	{
110	3.12k	static char *function = "libewf_hash_sections_free";
111
112	3.12k	if( hash_sections == NULL )
113	0	{
114	0	libcerror_error_set(
115	0	error,
116	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
117	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
118	0	"%s: invalid hash sections.",
119	0	function );
120
121	0	return( -1 );
122	0	}
123	3.12k	if( *hash_sections != NULL )
124	3.12k	{
125	3.12k	if( ( *hash_sections )->xhash != NULL )
126	0	{
127	0	memory_free(
128	0	( *hash_sections )->xhash );
129	0	}
130	3.12k	memory_free(
131	3.12k	*hash_sections );
132
133	3.12k	*hash_sections = NULL;
134	3.12k	}
135	3.12k	return( 1 );
136	3.12k	}
137
138		/* Clones the hash sections
139		* Returns 1 if successful or -1 on error
140		*/
141		int libewf_hash_sections_clone(
142		libewf_hash_sections_t **destination_hash_sections,
143		libewf_hash_sections_t *source_hash_sections,
144		libcerror_error_t **error )
145	0	{
146	0	static char *function = "libewf_hash_sections_clone";
147
148	0	if( destination_hash_sections == NULL )
149	0	{
150	0	libcerror_error_set(
151	0	error,
152	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
153	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
154	0	"%s: invalid destination hash sections.",
155	0	function );
156
157	0	return( -1 );
158	0	}
159	0	if( *destination_hash_sections != NULL )
160	0	{
161	0	libcerror_error_set(
162	0	error,
163	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
164	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
165	0	"%s: invalid destination hash sections already set.",
166	0	function );
167
168	0	return( -1 );
169	0	}
170	0	if( source_hash_sections == NULL )
171	0	{
172	0	*destination_hash_sections = NULL;
173
174	0	return( 1 );
175	0	}
176	0	*destination_hash_sections = memory_allocate_structure(
177	0	libewf_hash_sections_t );
178
179	0	if( *destination_hash_sections == NULL )
180	0	{
181	0	libcerror_error_set(
182	0	error,
183	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
184	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
185	0	"%s: unable to create destination hash sections.",
186	0	function );
187
188	0	goto on_error;
189	0	}
190	0	if( memory_copy(
191	0	*destination_hash_sections,
192	0	source_hash_sections,
193	0	sizeof( libewf_hash_sections_t ) ) == NULL )
194	0	{
195	0	libcerror_error_set(
196	0	error,
197	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
198	0	LIBCERROR_MEMORY_ERROR_COPY_FAILED,
199	0	"%s: unable to copy source to destination hash sections.",
200	0	function );
201
202	0	memory_free(
203	0	*destination_hash_sections );
204
205	0	*destination_hash_sections = NULL;
206
207	0	return( -1 );
208	0	}
209	0	( *destination_hash_sections )->xhash = NULL;
210	0	( *destination_hash_sections )->xhash_size = 0;
211
212	0	if( source_hash_sections->xhash != NULL )
213	0	{
214	0	( destination_hash_sections )->xhash = (uint8_t ) memory_allocate(
215	0	sizeof( uint8_t ) * source_hash_sections->xhash_size );
216
217	0	if( ( *destination_hash_sections )->xhash == NULL )
218	0	{
219	0	libcerror_error_set(
220	0	error,
221	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
222	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
223	0	"%s: unable to create destination xhash.",
224	0	function );
225
226	0	goto on_error;
227	0	}
228	0	if( memory_copy(
229	0	( *destination_hash_sections )->xhash,
230	0	source_hash_sections->xhash,
231	0	sizeof( uint8_t ) * source_hash_sections->xhash_size ) == NULL )
232	0	{
233	0	libcerror_error_set(
234	0	error,
235	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
236	0	LIBCERROR_MEMORY_ERROR_COPY_FAILED,
237	0	"%s: unable to copy source to destination xhash.",
238	0	function );
239
240	0	goto on_error;
241	0	}
242	0	( *destination_hash_sections )->xhash_size = source_hash_sections->xhash_size;
243	0	}
244	0	return( 1 );
245
246	0	on_error:
247	0	if( *destination_hash_sections != NULL )
248	0	{
249	0	if( ( *destination_hash_sections )->xhash != NULL )
250	0	{
251	0	memory_free(
252	0	( *destination_hash_sections )->xhash );
253	0	}
254	0	memory_free(
255	0	*destination_hash_sections );
256
257	0	*destination_hash_sections = NULL;
258	0	}
259	0	return( -1 );
260	0	}
261
262		/* Sets the digest specified by the identifier from the hash values
263		* Returns 1 if successful or -1 on error
264		*/
265		int libewf_hash_sections_set_digest_from_hash_values(
266		libewf_hash_sections_t *hash_sections,
267		const uint8_t *identifier,
268		size_t identifier_length,
269		libfvalue_table_t *hash_values,
270		libcerror_error_t **error )
271	0	{
272	0	static char *function = "libewf_hash_sections_set_digest_from_hash_values";
273
274	0	if( hash_sections == NULL )
275	0	{
276	0	libcerror_error_set(
277	0	error,
278	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
279	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
280	0	"%s: invalid hash sections.",
281	0	function );
282
283	0	return( -1 );
284	0	}
285	0	if( ( identifier_length == 3 )
286	0	&& ( narrow_string_compare(
287	0	(char *) identifier,
288	0	"MD5",
289	0	identifier_length ) == 0 ) )
290	0	{
291	0	if( libewf_hash_values_generate_md5_hash(
292	0	hash_values,
293	0	hash_sections->md5_hash,
294	0	16,
295	0	&( hash_sections->md5_hash_set ),
296	0	error ) != 1 )
297	0	{
298	0	libcerror_error_set(
299	0	error,
300	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
301	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
302	0	"%s: unable to parse MD5 hash value for its value.",
303	0	function );
304
305	0	return( -1 );
306	0	}
307	0	if( libewf_hash_values_generate_md5_hash(
308	0	hash_values,
309	0	hash_sections->md5_digest,
310	0	16,
311	0	&( hash_sections->md5_digest_set ),
312	0	error ) != 1 )
313	0	{
314	0	libcerror_error_set(
315	0	error,
316	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
317	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
318	0	"%s: unable to parse MD5 hash value for its value.",
319	0	function );
320
321	0	return( -1 );
322	0	}
323	0	}
324	0	else if( ( identifier_length == 4 )
325	0	&& ( narrow_string_compare(
326	0	(char *) identifier,
327	0	"SHA1",
328	0	identifier_length ) == 0 ) )
329	0	{
330	0	if( libewf_hash_values_generate_sha1_hash(
331	0	hash_values,
332	0	hash_sections->sha1_hash,
333	0	20,
334	0	&( hash_sections->sha1_hash_set ),
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 parse SHA1 hash value for its value.",
342	0	function );
343
344	0	return( -1 );
345	0	}
346	0	if( libewf_hash_values_generate_sha1_hash(
347	0	hash_values,
348	0	hash_sections->sha1_digest,
349	0	20,
350	0	&( hash_sections->sha1_digest_set ),
351	0	error ) != 1 )
352	0	{
353	0	libcerror_error_set(
354	0	error,
355	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
356	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
357	0	"%s: unable to parse SHA1 hash value for its value.",
358	0	function );
359
360	0	return( -1 );
361	0	}
362	0	}
363	0	return( 1 );
364	0	}
365