xref: /titanic_50/usr/src/common/net/wanboot/p12misc.c (revision 2df1fe9ca32bb227b9158c67f5c00b54c20b10fd)
1 /*
2  * ====================================================================
3  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  *
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in
14  *    the documentation and/or other materials provided with the
15  *    distribution.
16  *
17  * 3. All advertising materials mentioning features or use of this
18  *    software must display the following acknowledgment:
19  *    "This product includes software developed by the OpenSSL Project
20  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21  *
22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23  *    endorse or promote products derived from this software without
24  *    prior written permission. For written permission, please contact
25  *    licensing@OpenSSL.org.
26  *
27  * 5. Products derived from this software may not be called "OpenSSL"
28  *    nor may "OpenSSL" appear in their names without prior written
29  *    permission of the OpenSSL Project.
30  *
31  * 6. Redistributions of any form whatsoever must retain the following
32  *    acknowledgment:
33  *    "This product includes software developed by the OpenSSL Project
34  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35  *
36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47  * OF THE POSSIBILITY OF SUCH DAMAGE.
48  * ====================================================================
49  *
50  * This product includes cryptographic software written by Eric Young
51  * (eay@cryptsoft.com).  This product includes software written by Tim
52  * Hudson (tjh@cryptsoft.com).
53  *
54  */
55 
56 /*
57  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
58  * Use is subject to license terms.
59  */
60 
61 #pragma ident	"%Z%%M%	%I%	%E% SMI"
62 
63 #include <stdio.h>
64 #include <strings.h>
65 #include <stdlib.h>
66 
67 #include <openssl/crypto.h>
68 #include <openssl/err.h>
69 #include <openssl/x509.h>
70 #include <openssl/ssl.h>
71 
72 #include <openssl/pkcs12.h>
73 #include <p12aux.h>
74 #include <auxutil.h>
75 #include <p12err.h>
76 
77 /*
78  * sunw_cryto_init() does crypto-specific initialization.
79  *
80  * Arguments:
81  *   None.
82  *
83  * Returns:
84  *   None.
85  */
86 void
87 sunw_crypto_init(void)
88 {
89 	OpenSSL_add_all_algorithms();
90 	SSL_load_error_strings();
91 	ERR_load_SUNW_strings();
92 	(void) SSL_library_init();
93 }
94 
95 /*
96  * sunw_split_certs() - Given a list of certs and a list of private keys,
97  *     moves certs which match one of the keys to a different stack.
98  *
99  * Arguments:
100  *   allkeys  - Points to a stack of private keys to search.
101  *   allcerts - Points to a stack of certs to be searched.
102  *   keycerts - Points to address of a stack of certs with matching private
103  *              keys.  They are moved from 'allcerts'.  This may not be NULL
104  *              when called.  If *keycerts is NULL upon entry, a new stack will
105  *              be allocated.  Otherwise, it must be a valid STACK_OF(509).
106  *   nocerts  - Points to address of a stack for keys which have no matching
107  *              certs.  Keys are moved from 'allkeys' here when they have no
108  *              matching certs.  If this is NULL, matchless keys will be
109  *              discarded.
110  *
111  *   Notes:  If an error occurs while moving certs, the cert being move may be
112  *   lost.  'keycerts' may only contain part of the matching certs.  The number
113  *   of certs successfully moved can be found by checking sk_X509_num(keycerts).
114  *
115  *   If there is a key which does not have a matching cert, it is moved to
116  *   the list nocerts.
117  *
118  *   If all certs are removed from 'certs' and/or 'pkeys', it will be the
119  *   caller's responsibility to free the empty stacks.
120  *
121  * Returns:
122  *  <  0 - An error returned.  Call ERR_get_error() to get errors information.
123  *         Where possible, memory has been freed.
124  *  >= 0 - The number of certs moved from 'cert' to 'pkcerts'.
125  */
126 int
127 sunw_split_certs(STACK_OF(EVP_PKEY) *allkeys, STACK_OF(X509) *allcerts,
128     STACK_OF(X509) **keycerts, STACK_OF(EVP_PKEY) **nocerts)
129 {
130 	STACK_OF(X509) *matching;
131 	STACK_OF(EVP_PKEY) *nomatch;
132 	EVP_PKEY *tmpkey;
133 	X509 *tmpcert;
134 	int count = 0;
135 	int found;
136 	int res;
137 	int i;
138 	int k;
139 
140 	*keycerts = NULL;
141 	if (nocerts != NULL)
142 		*nocerts = NULL;
143 	nomatch = NULL;
144 
145 	if ((matching = sk_X509_new_null()) == NULL) {
146 		SUNWerr(SUNW_F_SPLIT_CERTS, SUNW_R_MEMORY_FAILURE);
147 		return (-1);
148 	}
149 	*keycerts = matching;
150 
151 	k = 0;
152 	while (k < sk_EVP_PKEY_num(allkeys)) {
153 		found = 0;
154 		tmpkey = sk_EVP_PKEY_value(allkeys, k);
155 
156 		for (i = 0; i < sk_X509_num(allcerts); i++) {
157 			tmpcert = sk_X509_value(allcerts, i);
158 			res = X509_check_private_key(tmpcert, tmpkey);
159 			if (res != 0) {
160 				count++;
161 				found = 1;
162 				tmpcert = sk_X509_delete(allcerts, i);
163 				if (sk_X509_push(matching, tmpcert) == 0) {
164 					X509_free(tmpcert);
165 					SUNWerr(SUNW_F_SPLIT_CERTS,
166 					    SUNW_R_MEMORY_FAILURE);
167 					return (-1);
168 				}
169 				break;
170 			}
171 		}
172 		if (found != 0) {
173 			/*
174 			 * Found a match - keep the key & check out the next
175 			 * one.
176 			 */
177 			k++;
178 		} else {
179 			/*
180 			 * No cert matching this key.  Move the key if
181 			 * possible or discard it.  Don't increment the
182 			 * index.
183 			 */
184 			if (nocerts == NULL) {
185 				tmpkey = sk_EVP_PKEY_delete(allkeys, k);
186 				sunw_evp_pkey_free(tmpkey);
187 			} else {
188 				if (*nocerts == NULL) {
189 					nomatch = sk_EVP_PKEY_new_null();
190 					if (nomatch == NULL) {
191 						SUNWerr(SUNW_F_SPLIT_CERTS,
192 						    SUNW_R_MEMORY_FAILURE);
193 						return (-1);
194 					}
195 					*nocerts = nomatch;
196 				}
197 				tmpkey = sk_EVP_PKEY_delete(allkeys, k);
198 				if (sk_EVP_PKEY_push(nomatch, tmpkey) == 0) {
199 					sunw_evp_pkey_free(tmpkey);
200 					SUNWerr(SUNW_F_SPLIT_CERTS,
201 					    SUNW_R_MEMORY_FAILURE);
202 					return (-1);
203 				}
204 			}
205 		}
206 	}
207 
208 	return (count);
209 }
210 
211 /*
212  * sunw_evp_pkey_free() Given an EVP_PKEY structure, free any attributes
213  *     that are attached.  Then free the EVP_PKEY itself.
214  *
215  *     This is a replacement for EVP_PKEY_free() for the sunw stuff.
216  *     It should be used in places where EVP_PKEY_free would be used,
217  *     including calls to sk_EVP_PKEY_pop_free().
218  *
219  * Arguments:
220  *   pkey     - Entry which potentially has attributes to be freed.
221  *
222  * Returns:
223  *   None.
224  */
225 void
226 sunw_evp_pkey_free(EVP_PKEY *pkey)
227 {
228 	if (pkey != NULL) {
229 		if (pkey->attributes != NULL) {
230 			sk_X509_ATTRIBUTE_pop_free(pkey->attributes,
231 			    X509_ATTRIBUTE_free);
232 			pkey->attributes = NULL;
233 		}
234 		EVP_PKEY_free(pkey);
235 	}
236 }
237 
238 /*
239  * sunw_set_localkeyid() sets the localkeyid in a cert, a private key or
240  *     both.  Any existing localkeyid will be discarded.
241  *
242  * Arguments:
243  *   keyid_str- A byte string with the localkeyid to set
244  *   keyid_len- Length of the keyid byte string.
245  *   pkey     - Points to a private key to set the keyidstr in.
246  *   cert     - Points to a cert to set the keyidstr in.
247  *
248  * Note that setting a keyid into a cert which will not be written out as
249  * a PKCS12 cert is pointless since it will be lost.
250  *
251  * Returns:
252  *   0        - Success.
253  *   < 0      - An error occurred.  It was probably an error in allocating
254  *              memory.  The error will be set in the error stack.  Call
255  *              ERR_get_error() to get specific information.
256  */
257 int
258 sunw_set_localkeyid(const char *keyid_str, int keyid_len, EVP_PKEY *pkey,
259     X509 *cert)
260 {
261 	X509_ATTRIBUTE *attr = NULL;
262 	ASN1_STRING *str = NULL;
263 	ASN1_TYPE *keyid = NULL;
264 	int retval = -1;
265 	int i;
266 
267 	if (cert != NULL) {
268 		if (X509_keyid_set1(cert, (uchar_t *)keyid_str, keyid_len)
269 		    == 0) {
270 			SUNWerr(SUNW_F_SET_LOCALKEYID, SUNW_R_SET_LKID_ERR);
271 			goto cleanup;
272 		}
273 	}
274 	if (pkey != NULL) {
275 		str = (ASN1_STRING *)M_ASN1_OCTET_STRING_new();
276 		if (str == NULL ||
277 		    M_ASN1_OCTET_STRING_set(str, keyid_str, keyid_len) == 0 ||
278 		    (keyid = ASN1_TYPE_new()) == NULL) {
279 			SUNWerr(SUNW_F_SET_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
280 			goto cleanup;
281 		}
282 
283 		ASN1_TYPE_set(keyid, V_ASN1_OCTET_STRING, str);
284 		str = NULL;
285 
286 		attr = type2attrib(keyid, NID_localKeyID);
287 		if (attr == NULL) {
288 			/*
289 			 * Error already on stack
290 			 */
291 			goto cleanup;
292 		}
293 		keyid = NULL;
294 
295 		if (pkey->attributes == NULL) {
296 			pkey->attributes = sk_X509_ATTRIBUTE_new_null();
297 			if (pkey->attributes == NULL) {
298 				SUNWerr(SUNW_F_SET_LOCALKEYID,
299 				    SUNW_R_MEMORY_FAILURE);
300 				goto cleanup;
301 			}
302 		} else {
303 			i = find_attr_by_nid(pkey->attributes, NID_localKeyID);
304 			if (i >= 0)
305 				sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
306 		}
307 		if (sk_X509_ATTRIBUTE_push(pkey->attributes, attr) == 0) {
308 			SUNWerr(SUNW_F_SET_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
309 			goto cleanup;
310 		}
311 		attr = NULL;
312 	}
313 	retval = 0;
314 
315 cleanup:
316 	if (str != NULL)
317 		ASN1_STRING_free(str);
318 	if (keyid != NULL)
319 		ASN1_TYPE_free(keyid);
320 	if (attr != NULL)
321 		X509_ATTRIBUTE_free(attr);
322 
323 	return (retval);
324 }
325 
326 /*
327  * sunw_get_pkey_localkeyid() gets the localkeyid from a private key.  It can
328  *     optionally remove the value found.
329  *
330  * Arguments:
331  *   dowhat   - What to do with the attributes (remove them or copy them).
332  *   pkey     - Points to a private key to set the keyidstr in.
333  *   keyid_str- Points to a location which will receive the pointer to
334  *              a byte string containing the binary localkeyid.  Note that
335  *              this is a copy, and the caller must free it.
336  *   keyid_len- Length of keyid_str.
337  *
338  * Returns:
339  *   >= 0     - The number of characters in the keyid returned.
340  *   < 0      - An error occurred.  It was probably an error in allocating
341  *              memory.  The error will be set in the error stack.  Call
342  *              ERR_get_error() to get specific information.
343  */
344 int
345 sunw_get_pkey_localkeyid(getdo_actions_t dowhat, EVP_PKEY *pkey,
346     char **keyid_str, int *keyid_len)
347 {
348 	X509_ATTRIBUTE *attr = NULL;
349 	ASN1_OCTET_STRING *str = NULL;
350 	ASN1_TYPE *ty = NULL;
351 	int len = 0;
352 	int i;
353 
354 	if (keyid_str != NULL)
355 		*keyid_str = NULL;
356 	if (keyid_len != NULL)
357 		*keyid_len = 0;
358 
359 	if (pkey == NULL || pkey->attributes == NULL) {
360 		return (0);
361 	}
362 
363 	if ((i = find_attr_by_nid(pkey->attributes, NID_localKeyID)) < 0) {
364 		return (0);
365 	}
366 	attr = sk_X509_ATTRIBUTE_value(pkey->attributes, i);
367 
368 	if ((ty = attrib2type(attr)) == NULL ||
369 	    ty->type != V_ASN1_OCTET_STRING) {
370 		return (0);
371 	}
372 
373 	if (dowhat == GETDO_DEL) {
374 		attr = sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
375 		if (attr != NULL)
376 			X509_ATTRIBUTE_free(attr);
377 		return (0);
378 	}
379 
380 	str = ty->value.octet_string;
381 	len = str->length;
382 	if ((*keyid_str = malloc(len)) == NULL) {
383 		SUNWerr(SUNW_F_GET_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
384 		return (-1);
385 	}
386 
387 	(void) memcpy(*keyid_str, str->data, len);
388 	*keyid_len = len;
389 
390 	return (len);
391 }
392 
393 /*
394  * sunw_get_pkey_fname() gets the friendlyName from a private key.  It can
395  *     optionally remove the value found.
396  *
397  * Arguments:
398  *   dowhat   - What to do with the attributes (remove them or copy them).
399  *   pkey     - Points to a private key to get the frientlyname from
400  *   fname    - Points to a location which will receive the pointer to a
401  *              byte string with the ASCII friendlyname
402  *
403  * Returns:
404  *   >= 0     - The number of characters in the frienlyname returned.
405  *   < 0      - An error occurred.  It was probably an error in allocating
406  *              memory.  The error will be set in the error stack.  Call
407  *              ERR_get_error() to get specific information.
408  */
409 int
410 sunw_get_pkey_fname(getdo_actions_t dowhat, EVP_PKEY *pkey, char **fname)
411 {
412 	X509_ATTRIBUTE *attr = NULL;
413 	ASN1_BMPSTRING *str = NULL;
414 	ASN1_TYPE *ty = NULL;
415 	int len = 0;
416 	int i;
417 
418 	if (fname != NULL)
419 		*fname = NULL;
420 
421 	if (pkey == NULL || pkey->attributes == NULL) {
422 		return (0);
423 	}
424 
425 	if ((i = find_attr_by_nid(pkey->attributes, NID_friendlyName)) < 0) {
426 		return (0);
427 	}
428 	attr = sk_X509_ATTRIBUTE_value(pkey->attributes, i);
429 
430 	if ((ty = attrib2type(attr)) == NULL ||
431 	    ty->type != V_ASN1_BMPSTRING) {
432 		return (0);
433 	}
434 
435 	if (dowhat == GETDO_DEL) {
436 		attr = sk_X509_ATTRIBUTE_delete(pkey->attributes, i);
437 		if (attr != NULL)
438 			X509_ATTRIBUTE_free(attr);
439 		return (0);
440 	}
441 
442 	str = ty->value.bmpstring;
443 	*fname = uni2asc(str->data, str->length);
444 	if (*fname == NULL) {
445 		SUNWerr(SUNW_F_GET_PKEY_FNAME, SUNW_R_MEMORY_FAILURE);
446 		return (-1);
447 	}
448 
449 	len = strlen(*fname);
450 
451 	return (len);
452 }
453 
454 /*
455  * sunw_find_localkeyid() searches stacks of certs and private keys,
456  *     and returns  the first matching cert/private key found.
457  *
458  * Look for a keyid in a stack of certs.  if 'certs' is NULL and 'pkeys' is
459  * not NULL, search the list of private keys.  Move the matching cert to
460  * 'matching_cert' and its matching private key to 'matching_pkey'.  If no
461  * cert or keys match, no match occurred.
462  *
463  * Arguments:
464  *   keyid_str- A byte string with the localkeyid to match
465  *   keyid_len- Length of the keyid byte string.
466  *   pkeys    - Points to a stack of private keys which match the certs.
467  *              This may be NULL, in which case no keys are returned.
468  *   certs    - Points to a stack of certs to search.  If NULL, search the
469  *              stack of keys instead.
470  *   matching_pkey
471  *            - Pointer to receive address of first matching pkey found.
472  *              'matching_pkey' must not be NULL; '*matching_pkey' will be
473  *              reset.
474  *   matching_cert
475  *            - Pointer to receive address of first matching cert found.
476  *              'matching_cert' must not be NULL; '*matching_cert' will be
477  *              reset.
478  *
479  * Returns:
480  *  <  0 - An error returned.  Call ERR_get_error() to get errors information.
481  *         Where possible, memory has been freed.
482  *  >= 0 - Objects were found and returned.  Which objects are indicated by
483  *         which bits are set (FOUND_PKEY and/or FOUND_CERT).
484  */
485 int
486 sunw_find_localkeyid(char *keyid_str, int len, STACK_OF(EVP_PKEY) *pkeys,
487 STACK_OF(X509) *certs, EVP_PKEY **matching_pkey, X509 **matching_cert)
488 {
489 	ASN1_STRING *cmpstr = NULL;
490 	EVP_PKEY *tmp_pkey = NULL;
491 	X509 *tmp_cert = NULL;
492 	int retval = 0;
493 
494 	/* If NULL arguments, this is an error */
495 	if (keyid_str == NULL ||
496 	    (pkeys == NULL || certs == NULL) ||
497 	    (pkeys != NULL && matching_pkey == NULL) ||
498 	    (certs != NULL && matching_cert == NULL)) {
499 		SUNWerr(SUNW_F_FIND_LOCALKEYID, SUNW_R_INVALID_ARG);
500 		return (-1);
501 	}
502 
503 	if (matching_pkey != NULL)
504 		*matching_pkey = NULL;
505 	if (matching_cert != NULL)
506 		*matching_cert = NULL;
507 
508 	cmpstr = (ASN1_STRING *)M_ASN1_OCTET_STRING_new();
509 	if (cmpstr == NULL ||
510 	    M_ASN1_OCTET_STRING_set(cmpstr, keyid_str, len) == 0) {
511 		SUNWerr(SUNW_F_FIND_LOCALKEYID, SUNW_R_MEMORY_FAILURE);
512 		return (-1);
513 	}
514 
515 	retval = find_attr(NID_localKeyID, cmpstr, pkeys, &tmp_pkey, certs,
516 	    &tmp_cert);
517 	if (retval == 0) {
518 		ASN1_STRING_free(cmpstr);
519 		return (retval);
520 	}
521 
522 	if (matching_pkey != NULL)
523 		*matching_pkey = tmp_pkey;
524 	if (matching_cert != NULL)
525 		*matching_cert = tmp_cert;
526 
527 	return (retval);
528 }
529 
530 /*
531  * sunw_find_fname() searches stacks of certs and private keys for one with
532  *     a matching friendlyname and returns the first matching cert/private
533  *     key found.
534  *
535  * Look for a friendlyname in a stack of certs.  if 'certs' is NULL and 'pkeys'
536  * is not NULL, search the list of private keys.  Move the matching cert to
537  * 'matching_cert' and its matching private key to 'matching_pkey'.  If no
538  * cert or keys match, no match occurred.
539  *
540  * Arguments:
541  *   fname    - Friendlyname to find (NULL-terminated ASCII string).
542  *   pkeys    - Points to a stack of private keys which match the certs.
543  *              This may be NULL, in which case no keys are returned.
544  *   certs    - Points to a stack of certs to search.  If NULL, search the
545  *              stack of keys instead.
546  *   matching_pkey
547  *            - Pointer to receive address of first matching pkey found.
548  *   matching_cert
549  *            - Pointer to receive address of first matching cert found.
550  *
551  * Returns:
552  *  <  0 - An error returned.  Call ERR_get_error() to get errors information.
553  *         Where possible, memory has been freed.
554  *  >= 0 - Objects were found and returned.  Which objects are indicated by
555  *         which bits are set (FOUND_PKEY and/or FOUND_CERT).
556  */
557 int
558 sunw_find_fname(char *fname, STACK_OF(EVP_PKEY) *pkeys, STACK_OF(X509) *certs,
559     EVP_PKEY **matching_pkey, X509 ** matching_cert)
560 {
561 	ASN1_STRING *cmpstr = NULL;
562 	EVP_PKEY *tmp_pkey = NULL;
563 	X509 *tmp_cert = NULL;
564 	int retval = 0;
565 
566 	/* If NULL arguments, this is an error */
567 	if (fname == NULL ||
568 	    (pkeys == NULL || certs == NULL) ||
569 	    (pkeys != NULL && matching_pkey == NULL) ||
570 	    (certs != NULL && matching_cert == NULL)) {
571 		SUNWerr(SUNW_F_FIND_FNAME, SUNW_R_INVALID_ARG);
572 		return (-1);
573 	}
574 
575 	if (matching_pkey != NULL)
576 		*matching_pkey = NULL;
577 	if (matching_cert != NULL)
578 		*matching_cert = NULL;
579 
580 	cmpstr = (ASN1_STRING *)asc2bmpstring(fname, strlen(fname));
581 	if (cmpstr == NULL) {
582 		/*
583 		 * Error already on stack
584 		 */
585 		return (-1);
586 	}
587 
588 	retval = find_attr(NID_friendlyName, cmpstr, pkeys, &tmp_pkey, certs,
589 	    &tmp_cert);
590 	if (retval == 0) {
591 		ASN1_STRING_free(cmpstr);
592 		return (retval);
593 	}
594 
595 	if (matching_pkey != NULL)
596 		*matching_pkey = tmp_pkey;
597 	if (matching_cert != NULL)
598 		*matching_cert = tmp_cert;
599 
600 	return (retval);
601 }
602 
603 /*
604  * sunw_print_times() formats and prints cert times to the given file.
605  *
606  * The label is printed on one line. One or both dates are printed on
607  * the following line or two, each with it's own indented label in the
608  * format:
609  *
610  *    label
611  *      'not before' date: whatever
612  *      'not after' date:  whatever
613  *
614  * Arguments:
615  *   fp       - file pointer for file to write to.
616  *   dowhat   - what field(s) to print.
617  *   label    - Label to use.  If NULL, no line will be printed.
618  *   cert     - Points to a client or CA certs to check
619  *
620  * Returns:
621  *  <  0 - An error occured.
622  *  >= 0 - Number of lines written.
623  */
624 int
625 sunw_print_times(FILE *fp, prnt_actions_t dowhat, char *label, X509 *cert)
626 {
627 	int lines = 0;
628 
629 	if (label != NULL) {
630 		(void) fprintf(fp, "%s\n", label);
631 		lines++;
632 	}
633 
634 	if (dowhat == PRNT_NOT_BEFORE || dowhat == PRNT_BOTH) {
635 		(void) fprintf(fp, "'not before' date: ");
636 		(void) print_time(fp, X509_get_notBefore(cert));
637 		(void) fprintf(fp, "\n");
638 		lines++;
639 	}
640 
641 	if (dowhat == PRNT_NOT_AFTER || dowhat == PRNT_BOTH) {
642 		(void) fprintf(fp, "'not after' date:  ");
643 		(void) print_time(fp, X509_get_notAfter(cert));
644 		(void) fprintf(fp, "\n");
645 		lines++;
646 	}
647 	return (lines);
648 }
649 
650 /*
651  * sunw_check_keys() compares the public key in the certificate and a
652  *     private key to ensure that they match.
653  *
654  * Arguments:
655  *   cert     - Points to a certificate.
656  *   pkey     - Points to a private key.
657  *
658  * Returns:
659  *  == 0 - These do not match.
660  *  != 0 - The cert's public key and the private key match.
661  */
662 int
663 sunw_check_keys(X509 *cert, EVP_PKEY *pkey)
664 {
665 	int retval = 0;
666 
667 	if (pkey != NULL && cert != NULL)
668 		retval = X509_check_private_key(cert, pkey);
669 
670 	return (retval);
671 }
672 
673 /*
674  * sunw_issuer_attrs - Given a cert, return the issuer-specific attributes
675  *     as one ASCII string.
676  *
677  * Arguments:
678  *   cert     - Cert to process
679  *   buf      - If non-NULL, buffer to receive string.  If NULL, one will
680  *              be allocated and its value will be returned to the caller.
681  *   len      - If 'buff' is non-null, the buffer's length.
682  *
683  * This returns an ASCII string with all issuer-related attributes in one
684  * string separated by '/' characters.  Each attribute begins with its name
685  * and an equal sign.  Two attributes (ATTR1 and Attr2) would have the
686  * following form:
687  *
688  *         ATTR1=attr_value/ATTR2=attr2_value
689  *
690  * Returns:
691  *   != NULL  - Pointer to the ASCII string containing the issuer-related
692  *              attributes.  If the 'buf' argument was NULL, this is a
693  *              dynamically-allocated buffer and the caller will have the
694  *              responsibility for freeing it.
695  *   NULL     - Memory needed to be allocated but could not be.  Errors
696  *              are set on the error stack.
697  */
698 char *
699 sunw_issuer_attrs(X509 *cert, char *buf, int len)
700 {
701 	return (X509_NAME_oneline(X509_get_issuer_name(cert), buf, len));
702 }
703 
704 /*
705  * sunw_subject_attrs - Given a cert, return the subject-specific attributes
706  *     as one ASCII string.
707  *
708  * Arguments:
709  *   cert     - Cert to process
710  *   buf      - If non-NULL, buffer to receive string.  If NULL, one will
711  *              be allocated and its value will be returned to the caller.
712  *   len      - If 'buff' is non-null, the buffer's length.
713  *
714  * This returns an ASCII string with all subject-related attributes in one
715  * string separated by '/' characters.  Each attribute begins with its name
716  * and an equal sign.  Two attributes (ATTR1 and Attr2) would have the
717  * following form:
718  *
719  *         ATTR1=attr_value/ATTR2=attr2_value
720  *
721  * Returns:
722  *   != NULL  - Pointer to the ASCII string containing the subject-related
723  *              attributes.  If the 'buf' argument was NULL, this is a
724  *              dynamically-allocated buffer and the caller will have the
725  *              responsibility for freeing it.
726  *   NULL     - Memory needed to be allocated but could not be.  Errors
727  *              are set on the error stack.
728  */
729 char *
730 sunw_subject_attrs(X509 *cert, char *buf, int len)
731 {
732 	return (X509_NAME_oneline(X509_get_subject_name(cert), buf, len));
733 }
734 
735 /*
736  * sunw_append_keys - Given two stacks of private keys, remove the keys from
737  *      the second stack and append them to the first.  Both stacks must exist
738  *      at time of call.
739  *
740  * Arguments:
741  *   dst 	- the stack to receive the keys from 'src'
742  *   src	- the stack whose keys are to be moved.
743  *
744  * Returns:
745  *   -1  	- An error occurred.  The error status is set.
746  *   >= 0       - The number of keys that were copied.
747  */
748 int
749 sunw_append_keys(STACK_OF(EVP_PKEY) *dst, STACK_OF(EVP_PKEY) *src)
750 {
751 	EVP_PKEY *tmpk;
752 	int count = 0;
753 
754 	while (sk_EVP_PKEY_num(src) > 0) {
755 		tmpk = sk_EVP_PKEY_delete(src, 0);
756 		if (sk_EVP_PKEY_push(dst, tmpk) == 0) {
757 			sunw_evp_pkey_free(tmpk);
758 			SUNWerr(SUNW_F_APPEND_KEYS, SUNW_R_MEMORY_FAILURE);
759 			return (-1);
760 		}
761 		count++;
762 	}
763 
764 	return (count);
765 }
766