GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/asn1/t_x509.c Lines: 172 237 72.6 %
Date: 2017-11-07 Branches: 115 248 46.4 %

Line Branch Exec Source
1
/* $OpenBSD: t_x509.c,v 1.28 2017/04/03 15:52:59 beck Exp $ */
2
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3
 * All rights reserved.
4
 *
5
 * This package is an SSL implementation written
6
 * by Eric Young (eay@cryptsoft.com).
7
 * The implementation was written so as to conform with Netscapes SSL.
8
 *
9
 * This library is free for commercial and non-commercial use as long as
10
 * the following conditions are aheared to.  The following conditions
11
 * apply to all code found in this distribution, be it the RC4, RSA,
12
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13
 * included with this distribution is covered by the same copyright terms
14
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15
 *
16
 * Copyright remains Eric Young's, and as such any Copyright notices in
17
 * the code are not to be removed.
18
 * If this package is used in a product, Eric Young should be given attribution
19
 * as the author of the parts of the library used.
20
 * This can be in the form of a textual message at program startup or
21
 * in documentation (online or textual) provided with the package.
22
 *
23
 * Redistribution and use in source and binary forms, with or without
24
 * modification, are permitted provided that the following conditions
25
 * are met:
26
 * 1. Redistributions of source code must retain the copyright
27
 *    notice, this list of conditions and the following disclaimer.
28
 * 2. Redistributions in binary form must reproduce the above copyright
29
 *    notice, this list of conditions and the following disclaimer in the
30
 *    documentation and/or other materials provided with the distribution.
31
 * 3. All advertising materials mentioning features or use of this software
32
 *    must display the following acknowledgement:
33
 *    "This product includes cryptographic software written by
34
 *     Eric Young (eay@cryptsoft.com)"
35
 *    The word 'cryptographic' can be left out if the rouines from the library
36
 *    being used are not cryptographic related :-).
37
 * 4. If you include any Windows specific code (or a derivative thereof) from
38
 *    the apps directory (application code) you must include an acknowledgement:
39
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40
 *
41
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51
 * SUCH DAMAGE.
52
 *
53
 * The licence and distribution terms for any publically available version or
54
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55
 * copied and put under another distribution licence
56
 * [including the GNU Public Licence.]
57
 */
58
59
#include <stdio.h>
60
61
#include <openssl/opensslconf.h>
62
63
#include <openssl/bn.h>
64
#include <openssl/buffer.h>
65
#include <openssl/err.h>
66
#include <openssl/objects.h>
67
#include <openssl/x509.h>
68
#include <openssl/x509v3.h>
69
70
#ifndef OPENSSL_NO_DSA
71
#include <openssl/dsa.h>
72
#endif
73
#ifndef OPENSSL_NO_EC
74
#include <openssl/ec.h>
75
#endif
76
#ifndef OPENSSL_NO_RSA
77
#include <openssl/rsa.h>
78
#endif
79
80
#include "asn1_locl.h"
81
82
int
83
X509_print_fp(FILE *fp, X509 *x)
84
{
85
	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
86
}
87
88
int
89
X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
90
{
91
	BIO *b;
92
	int ret;
93
94
	if ((b = BIO_new(BIO_s_file())) == NULL) {
95
		X509error(ERR_R_BUF_LIB);
96
		return (0);
97
	}
98
	BIO_set_fp(b, fp, BIO_NOCLOSE);
99
	ret = X509_print_ex(b, x, nmflag, cflag);
100
	BIO_free(b);
101
	return (ret);
102
}
103
104
int
105
X509_print(BIO *bp, X509 *x)
106
{
107
48
	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
108
}
109
110
int
111
X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
112
{
113
	long l;
114
	int ret = 0, i;
115
	char *m = NULL, mlch = ' ';
116
	int nmindent = 0;
117
	X509_CINF *ci;
118
	ASN1_INTEGER *bs;
119
	EVP_PKEY *pkey = NULL;
120
	const char *neg;
121
122
68
	if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
123
		mlch = '\n';
124
		nmindent = 12;
125
	}
126
127
34
	if (nmflags == X509_FLAG_COMPAT)
128
34
		nmindent = 16;
129
130
34
	ci = x->cert_info;
131
34
	if (!(cflag & X509_FLAG_NO_HEADER)) {
132
34
		if (BIO_write(bp, "Certificate:\n", 13) <= 0)
133
			goto err;
134
34
		if (BIO_write(bp, "    Data:\n", 10) <= 0)
135
			goto err;
136
	}
137
34
	if (!(cflag & X509_FLAG_NO_VERSION)) {
138
34
		l = X509_get_version(x);
139
68
		if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n",
140
68
		    "", l + 1, l) <= 0)
141
			goto err;
142
	}
143
34
	if (!(cflag & X509_FLAG_NO_SERIAL)) {
144
34
		if (BIO_write(bp, "        Serial Number:", 22) <= 0)
145
			goto err;
146
147
34
		bs = X509_get_serialNumber(x);
148
34
		if (bs->length <= (int)sizeof(long)) {
149
34
			l = ASN1_INTEGER_get(bs);
150
34
			if (bs->type == V_ASN1_NEG_INTEGER) {
151
				l = -l;
152
				neg = "-";
153
			} else
154
				neg = "";
155
68
			if (BIO_printf(bp, " %s%lu (%s0x%lx)\n",
156
34
			    neg, l, neg, l) <= 0)
157
				goto err;
158
		} else {
159
			neg = (bs->type == V_ASN1_NEG_INTEGER) ?
160
			    " (Negative)" : "";
161
			if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
162
				goto err;
163
			for (i = 0; i < bs->length; i++) {
164
				if (BIO_printf(bp, "%02x%c", bs->data[i],
165
				    ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
166
					goto err;
167
			}
168
		}
169
170
	}
171
172
34
	if (!(cflag & X509_FLAG_NO_SIGNAME)) {
173
34
		if (X509_signature_print(bp, x->sig_alg, NULL) <= 0)
174
			goto err;
175
	}
176
177
34
	if (!(cflag & X509_FLAG_NO_ISSUER)) {
178
34
		if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
179
			goto err;
180
68
		if (X509_NAME_print_ex(bp, X509_get_issuer_name(x),
181
34
		    nmindent, nmflags) < 0)
182
			goto err;
183
34
		if (BIO_write(bp, "\n", 1) <= 0)
184
			goto err;
185
	}
186
34
	if (!(cflag & X509_FLAG_NO_VALIDITY)) {
187
34
		if (BIO_write(bp, "        Validity\n", 17) <= 0)
188
			goto err;
189
34
		if (BIO_write(bp, "            Not Before: ", 24) <= 0)
190
			goto err;
191
34
		if (!ASN1_TIME_print(bp, X509_get_notBefore(x)))
192
			goto err;
193
34
		if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
194
			goto err;
195
34
		if (!ASN1_TIME_print(bp, X509_get_notAfter(x)))
196
			goto err;
197
34
		if (BIO_write(bp, "\n", 1) <= 0)
198
			goto err;
199
	}
200
34
	if (!(cflag & X509_FLAG_NO_SUBJECT)) {
201
34
		if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
202
			goto err;
203
68
		if (X509_NAME_print_ex(bp, X509_get_subject_name(x),
204
34
		    nmindent, nmflags) < 0)
205
			goto err;
206
34
		if (BIO_write(bp, "\n", 1) <= 0)
207
			goto err;
208
	}
209
34
	if (!(cflag & X509_FLAG_NO_PUBKEY)) {
210
68
		if (BIO_write(bp, "        Subject Public Key Info:\n",
211
34
		    33) <= 0)
212
			goto err;
213
34
		if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
214
			goto err;
215
34
		if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
216
			goto err;
217
34
		if (BIO_puts(bp, "\n") <= 0)
218
			goto err;
219
220
34
		pkey = X509_get_pubkey(x);
221
34
		if (pkey == NULL) {
222
			BIO_printf(bp, "%12sUnable to load Public Key\n", "");
223
			ERR_print_errors(bp);
224
		} else {
225
34
			EVP_PKEY_print_public(bp, pkey, 16, NULL);
226
34
			EVP_PKEY_free(pkey);
227
		}
228
	}
229
230
34
	if (!(cflag & X509_FLAG_NO_EXTENSIONS))
231
34
		X509V3_extensions_print(bp, "X509v3 extensions",
232
34
		    ci->extensions, cflag, 8);
233
234
34
	if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
235
34
		if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0)
236
			goto err;
237
	}
238
34
	if (!(cflag & X509_FLAG_NO_AUX)) {
239
34
		if (!X509_CERT_AUX_print(bp, x->aux, 0))
240
			goto err;
241
	}
242
34
	ret = 1;
243
244
err:
245
	free(m);
246
34
	return (ret);
247
}
248
249
int X509_ocspid_print (BIO *bp, X509 *x)
250
{
251
	unsigned char *der = NULL;
252
4
	unsigned char *dertmp;
253
	int derlen;
254
	int i;
255
2
	unsigned char SHA1md[SHA_DIGEST_LENGTH];
256
257
	/* display the hash of the subject as it would appear
258
	   in OCSP requests */
259
2
	if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
260
		goto err;
261
2
	derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
262
2
	if ((der = dertmp = malloc(derlen)) == NULL)
263
		goto err;
264
2
	i2d_X509_NAME(x->cert_info->subject, &dertmp);
265
266
2
	if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
267
		goto err;
268
84
	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
269
40
		if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
270
			goto err;
271
	}
272
2
	free (der);
273
	der = NULL;
274
275
	/* display the hash of the public key as it would appear
276
	   in OCSP requests */
277
2
	if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
278
		goto err;
279
280
4
	if (!EVP_Digest(x->cert_info->key->public_key->data,
281
2
	    x->cert_info->key->public_key->length,
282
2
	    SHA1md, NULL, EVP_sha1(), NULL))
283
		goto err;
284
84
	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
285
40
		if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
286
			goto err;
287
	}
288
2
	BIO_printf(bp, "\n");
289
290
2
	return (1);
291
292
err:
293
	free(der);
294
	return (0);
295
2
}
296
297
int
298
X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
299
{
300
	const unsigned char *s;
301
	int i, n;
302
303
76
	n = sig->length;
304
38
	s = sig->data;
305
19532
	for (i = 0; i < n; i++) {
306
9728
		if ((i % 18) == 0) {
307
570
			if (BIO_write(bp, "\n", 1) <= 0)
308
				return 0;
309
570
			if (BIO_indent(bp, indent, indent) <= 0)
310
				return 0;
311
		}
312
29184
		if (BIO_printf(bp, "%02x%s", s[i],
313
19456
		    ((i + 1) == n) ? "" : ":") <= 0)
314
			return 0;
315
	}
316
38
	if (BIO_write(bp, "\n", 1) != 1)
317
		return 0;
318
319
38
	return 1;
320
38
}
321
322
int
323
X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
324
{
325
	int sig_nid;
326
152
	if (BIO_puts(bp, "    Signature Algorithm: ") <= 0)
327
		return 0;
328
76
	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
329
		return 0;
330
331
76
	sig_nid = OBJ_obj2nid(sigalg->algorithm);
332
76
	if (sig_nid != NID_undef) {
333
76
		int pkey_nid, dig_nid;
334
		const EVP_PKEY_ASN1_METHOD *ameth;
335
76
		if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
336
76
			ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
337

152
			if (ameth && ameth->sig_print)
338
76
				return ameth->sig_print(bp, sigalg, sig, 9, 0);
339
		}
340
76
	}
341
	if (sig)
342
		return X509_signature_dump(bp, sig, 9);
343
	else if (BIO_puts(bp, "\n") <= 0)
344
		return 0;
345
	return 1;
346
76
}
347
348
int
349
ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
350
{
351
	int i, n;
352
	char buf[80];
353
	const char *p;
354
355
	if (v == NULL)
356
		return (0);
357
	n = 0;
358
	p = (const char *)v->data;
359
	for (i = 0; i < v->length; i++) {
360
		if ((p[i] > '~') || ((p[i] < ' ') &&
361
		    (p[i] != '\n') && (p[i] != '\r')))
362
			buf[n] = '.';
363
		else
364
			buf[n] = p[i];
365
		n++;
366
		if (n >= 80) {
367
			if (BIO_write(bp, buf, n) <= 0)
368
				return (0);
369
			n = 0;
370
		}
371
	}
372
	if (n > 0)
373
		if (BIO_write(bp, buf, n) <= 0)
374
			return (0);
375
	return (1);
376
}
377
378
int
379
ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
380
{
381
172
	if (tm->type == V_ASN1_UTCTIME)
382
86
		return ASN1_UTCTIME_print(bp, tm);
383
	if (tm->type == V_ASN1_GENERALIZEDTIME)
384
		return ASN1_GENERALIZEDTIME_print(bp, tm);
385
	BIO_write(bp, "Bad time value", 14);
386
	return (0);
387
86
}
388
389
static const char *mon[12] = {
390
	"Jan", "Feb", "Mar", "Apr", "May", "Jun",
391
	"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
392
};
393
394
int
395
ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
396
{
397
	char *v;
398
	int gmt = 0;
399
	int i;
400
	int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
401
	char *f = "";
402
	int f_len = 0;
403
404
44
	i = tm->length;
405
22
	v = (char *)tm->data;
406
407
22
	if (i < 12)
408
		goto err;
409
22
	if (v[i-1] == 'Z')
410
22
		gmt = 1;
411
572
	for (i = 0; i < 12; i++)
412

528
		if ((v[i] > '9') || (v[i] < '0'))
413
			goto err;
414
44
	y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 +
415
44
	    (v[2] - '0') * 10 + (v[3] - '0');
416
22
	M = (v[4] - '0') * 10 + (v[5] - '0');
417
22
	if ((M > 12) || (M < 1))
418
		goto err;
419
22
	d = (v[6] - '0') * 10 + (v[7] - '0');
420
22
	h = (v[8] - '0') * 10 + (v[9] - '0');
421
22
	m = (v[10] - '0') * 10 + (v[11] - '0');
422

44
	if (tm->length >= 14 &&
423

44
	    (v[12] >= '0') && (v[12] <= '9') &&
424
44
	    (v[13] >= '0') && (v[13] <= '9')) {
425
22
		s =  (v[12] - '0') * 10 + (v[13] - '0');
426
		/* Check for fractions of seconds. */
427

44
		if (tm->length >= 15 && v[14] == '.') {
428
			int l = tm->length;
429
			f = &v[14];	/* The decimal point. */
430
			f_len = 1;
431
			while (14 + f_len < l && f[f_len] >= '0' &&
432
			    f[f_len] <= '9')
433
				++f_len;
434
		}
435
	}
436
437
44
	if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
438
44
	    mon[M - 1], d, h, m, s, f_len, f, y, (gmt) ? " GMT" : "") <= 0)
439
		return (0);
440
	else
441
22
		return (1);
442
443
err:
444
	BIO_write(bp, "Bad time value", 14);
445
	return (0);
446
22
}
447
448
int
449
ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
450
{
451
	const char *v;
452
	int gmt = 0;
453
	int i;
454
	int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
455
456
172
	i = tm->length;
457
86
	v = (const char *)tm->data;
458
459
86
	if (i < 10)
460
		goto err;
461
86
	if (v[i-1] == 'Z')
462
86
		gmt = 1;
463
1892
	for (i = 0; i < 10; i++)
464

1720
		if ((v[i] > '9') || (v[i] < '0'))
465
			goto err;
466
86
	y = (v[0] - '0') * 10 + (v[1] - '0');
467
86
	if (y < 50)
468
86
		y += 100;
469
86
	M = (v[2] - '0') * 10 + (v[3] - '0');
470
86
	if ((M > 12) || (M < 1))
471
		goto err;
472
86
	d = (v[4] - '0') * 10 + (v[5] - '0');
473
86
	h = (v[6] - '0') * 10 + (v[7] - '0');
474
86
	m = (v[8] - '0') * 10 + (v[9] - '0');
475

172
	if (tm->length >=12 &&
476

172
	    (v[10] >= '0') && (v[10] <= '9') &&
477
172
	    (v[11] >= '0') && (v[11] <= '9'))
478
86
		s = (v[10] - '0') * 10 + (v[11] - '0');
479
480
172
	if (BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s",
481
172
	    mon[M - 1], d, h, m, s, y + 1900, (gmt) ? " GMT" : "") <= 0)
482
		return (0);
483
	else
484
86
		return (1);
485
486
err:
487
	BIO_write(bp, "Bad time value", 14);
488
	return (0);
489
86
}
490
491
int
492
X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
493
{
494
	char *s, *c, *b;
495
	int ret = 0, l, i;
496
497
136
	l = 80 - 2 - obase;
498
499
68
	b = X509_NAME_oneline(name, NULL, 0);
500
68
	if (b == NULL)
501
		return 0;
502
68
	if (*b == '\0') {
503
		free(b);
504
		return 1;
505
	}
506
68
	s = b + 1; /* skip the first slash */
507
508
	c = s;
509
4136
	for (;;) {
510

8068
		if (((*s == '/') &&
511

408
		    ((s[1] >= 'A') && (s[1] <= 'Z') &&
512

476
		    ((s[2] == '=') || ((s[2] >= 'A') && (s[2] <= 'Z') &&
513
4068
		    (s[3] == '='))))) || (*s == '\0')) {
514
272
			i = s - c;
515
272
			if (BIO_write(bp, c, i) != i)
516
				goto err;
517
272
			c = s + 1;	/* skip following slash */
518
272
			if (*s != '\0') {
519
204
				if (BIO_write(bp, ", ", 2) != 2)
520
					goto err;
521
			}
522
272
			l--;
523
272
		}
524
4136
		if (*s == '\0')
525
			break;
526
4068
		s++;
527
4068
		l--;
528
	}
529
530
	ret = 1;
531
68
	if (0) {
532
err:
533
		X509error(ERR_R_BUF_LIB);
534
	}
535
68
	free(b);
536
68
	return (ret);
537
68
}