1 /* $OpenBSD: ca.c,v 1.49 2021/09/05 04:05:14 inoguchi 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 /* The PPKI stuff has been donated by Jeff Barber <jeffb@issl.atl.hp.com> */
60 
61 #include <sys/types.h>
62 
63 #include <ctype.h>
64 #include <stdio.h>
65 #include <stdlib.h>
66 #include <limits.h>
67 #include <string.h>
68 #include <unistd.h>
69 
70 #include "apps.h"
71 
72 #include <openssl/bio.h>
73 #include <openssl/bn.h>
74 #include <openssl/conf.h>
75 #include <openssl/err.h>
76 #include <openssl/evp.h>
77 #include <openssl/objects.h>
78 #include <openssl/ocsp.h>
79 #include <openssl/pem.h>
80 #include <openssl/txt_db.h>
81 #include <openssl/x509.h>
82 #include <openssl/x509v3.h>
83 
84 #define BASE_SECTION		"ca"
85 
86 #define ENV_DEFAULT_CA		"default_ca"
87 
88 #define STRING_MASK		"string_mask"
89 #define UTF8_IN			"utf8"
90 
91 #define ENV_NEW_CERTS_DIR	"new_certs_dir"
92 #define ENV_CERTIFICATE 	"certificate"
93 #define ENV_SERIAL		"serial"
94 #define ENV_CRLNUMBER		"crlnumber"
95 #define ENV_PRIVATE_KEY		"private_key"
96 #define ENV_DEFAULT_DAYS 	"default_days"
97 #define ENV_DEFAULT_STARTDATE 	"default_startdate"
98 #define ENV_DEFAULT_ENDDATE 	"default_enddate"
99 #define ENV_DEFAULT_CRL_DAYS 	"default_crl_days"
100 #define ENV_DEFAULT_CRL_HOURS 	"default_crl_hours"
101 #define ENV_DEFAULT_MD		"default_md"
102 #define ENV_DEFAULT_EMAIL_DN	"email_in_dn"
103 #define ENV_PRESERVE		"preserve"
104 #define ENV_POLICY      	"policy"
105 #define ENV_EXTENSIONS      	"x509_extensions"
106 #define ENV_CRLEXT      	"crl_extensions"
107 #define ENV_MSIE_HACK		"msie_hack"
108 #define ENV_NAMEOPT		"name_opt"
109 #define ENV_CERTOPT		"cert_opt"
110 #define ENV_EXTCOPY		"copy_extensions"
111 #define ENV_UNIQUE_SUBJECT	"unique_subject"
112 
113 #define ENV_DATABASE		"database"
114 
115 /* Additional revocation information types */
116 
117 #define REV_NONE		0	/* No addditional information */
118 #define REV_CRL_REASON		1	/* Value is CRL reason code */
119 #define REV_HOLD		2	/* Value is hold instruction */
120 #define REV_KEY_COMPROMISE	3	/* Value is cert key compromise time */
121 #define REV_CA_COMPROMISE	4	/* Value is CA key compromise time */
122 
123 static void lookup_fail(const char *name, const char *tag);
124 static int certify(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509,
125     const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
126     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
127     unsigned long chtype, int multirdn, int email_dn, char *startdate,
128     char *enddate, long days, int batch, char *ext_sect, CONF *conf,
129     int verbose, unsigned long certopt, unsigned long nameopt,
130     int default_op, int ext_copy, int selfsign);
131 static int certify_cert(X509 **xret, char *infile, EVP_PKEY *pkey,
132     X509 *x509, const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
133     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
134     unsigned long chtype, int multirdn, int email_dn, char *startdate,
135     char *enddate, long days, int batch, char *ext_sect, CONF *conf,
136     int verbose, unsigned long certopt, unsigned long nameopt, int default_op,
137     int ext_copy);
138 static int certify_spkac(X509 **xret, char *infile, EVP_PKEY *pkey,
139     X509 *x509, const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
140     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
141     unsigned long chtype, int multirdn, int email_dn, char *startdate,
142     char *enddate, long days, char *ext_sect, CONF *conf, int verbose,
143     unsigned long certopt, unsigned long nameopt, int default_op, int ext_copy);
144 static int write_new_certificate(BIO *bp, X509 *x, int output_der,
145     int notext);
146 static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509,
147     const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
148     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
149     unsigned long chtype, int multirdn, int email_dn, char *startdate,
150     char *enddate, long days, int batch, int verbose, X509_REQ *req,
151     char *ext_sect, CONF *conf, unsigned long certopt, unsigned long nameopt,
152     int default_op, int ext_copy, int selfsign);
153 static int do_revoke(X509 *x509, CA_DB *db, int ext, char *extval);
154 static int get_certificate_status(const char *serial, CA_DB *db);
155 static int do_updatedb(CA_DB *db);
156 static int check_time_format(const char *str);
157 static char *bin2hex(unsigned char *, size_t);
158 char *make_revocation_str(int rev_type, char *rev_arg);
159 int make_revoked(X509_REVOKED *rev, const char *str);
160 int old_entry_print(BIO *bp, ASN1_OBJECT *obj, ASN1_STRING *str);
161 
162 static CONF *conf = NULL;
163 static CONF *extconf = NULL;
164 
165 static struct {
166 	int batch;
167 	char *certfile;
168 	unsigned long chtype;
169 	char *configfile;
170 	int create_serial;
171 	char *crl_ext;
172 	long crldays;
173 	long crlhours;
174 	long crlsec;
175 	long days;
176 	int dorevoke;
177 	int doupdatedb;
178 	int email_dn;
179 	char *enddate;
180 	char *extensions;
181 	char *extfile;
182 	int gencrl;
183 	char *infile;
184 	char **infiles;
185 	int infiles_num;
186 	char *key;
187 	char *keyfile;
188 	int keyform;
189 	char *md;
190 	int multirdn;
191 	int msie_hack;
192 	int notext;
193 	char *outdir;
194 	char *outfile;
195 	char *passargin;
196 	char *policy;
197 	int preserve;
198 	int req;
199 	char *rev_arg;
200 	int rev_type;
201 	char *serial_status;
202 	char *section;
203 	int selfsign;
204 	STACK_OF(OPENSSL_STRING) *sigopts;
205 	char *spkac_file;
206 	char *ss_cert_file;
207 	char *startdate;
208 	char *subj;
209 	int verbose;
210 } ca_config;
211 
212 static int
ca_opt_chtype_utf8(void)213 ca_opt_chtype_utf8(void)
214 {
215 	ca_config.chtype = MBSTRING_UTF8;
216 	return (0);
217 }
218 
219 static int
ca_opt_crl_ca_compromise(char * arg)220 ca_opt_crl_ca_compromise(char *arg)
221 {
222 	ca_config.rev_arg = arg;
223 	ca_config.rev_type = REV_CA_COMPROMISE;
224 	return (0);
225 }
226 
227 static int
ca_opt_crl_compromise(char * arg)228 ca_opt_crl_compromise(char *arg)
229 {
230 	ca_config.rev_arg = arg;
231 	ca_config.rev_type = REV_KEY_COMPROMISE;
232 	return (0);
233 }
234 
235 static int
ca_opt_crl_hold(char * arg)236 ca_opt_crl_hold(char *arg)
237 {
238 	ca_config.rev_arg = arg;
239 	ca_config.rev_type = REV_HOLD;
240 	return (0);
241 }
242 
243 static int
ca_opt_crl_reason(char * arg)244 ca_opt_crl_reason(char *arg)
245 {
246 	ca_config.rev_arg = arg;
247 	ca_config.rev_type = REV_CRL_REASON;
248 	return (0);
249 }
250 
251 static int
ca_opt_in(char * arg)252 ca_opt_in(char *arg)
253 {
254 	ca_config.infile = arg;
255 	ca_config.req = 1;
256 	return (0);
257 }
258 
259 static int
ca_opt_infiles(int argc,char ** argv,int * argsused)260 ca_opt_infiles(int argc, char **argv, int *argsused)
261 {
262 	ca_config.infiles_num = argc - 1;
263 	if (ca_config.infiles_num < 1)
264 		return (1);
265 	ca_config.infiles = argv + 1;
266 	ca_config.req = 1;
267 	*argsused = argc;
268 	return (0);
269 }
270 
271 static int
ca_opt_revoke(char * arg)272 ca_opt_revoke(char *arg)
273 {
274 	ca_config.infile = arg;
275 	ca_config.dorevoke = 1;
276 	return (0);
277 }
278 
279 static int
ca_opt_sigopt(char * arg)280 ca_opt_sigopt(char *arg)
281 {
282 	if (ca_config.sigopts == NULL)
283 		ca_config.sigopts = sk_OPENSSL_STRING_new_null();
284 	if (ca_config.sigopts == NULL)
285 		return (1);
286 	if (!sk_OPENSSL_STRING_push(ca_config.sigopts, arg))
287 		return (1);
288 	return (0);
289 }
290 
291 static int
ca_opt_spkac(char * arg)292 ca_opt_spkac(char *arg)
293 {
294 	ca_config.spkac_file = arg;
295 	ca_config.req = 1;
296 	return (0);
297 }
298 
299 static int
ca_opt_ss_cert(char * arg)300 ca_opt_ss_cert(char *arg)
301 {
302 	ca_config.ss_cert_file = arg;
303 	ca_config.req = 1;
304 	return (0);
305 }
306 
307 static const struct option ca_options[] = {
308 	{
309 		.name = "batch",
310 		.desc = "Operate in batch mode",
311 		.type = OPTION_FLAG,
312 		.opt.flag = &ca_config.batch,
313 	},
314 	{
315 		.name = "cert",
316 		.argname = "file",
317 		.desc = "File containing the CA certificate",
318 		.type = OPTION_ARG,
319 		.opt.arg = &ca_config.certfile,
320 	},
321 	{
322 		.name = "config",
323 		.argname = "file",
324 		.desc = "Specify an alternative configuration file",
325 		.type = OPTION_ARG,
326 		.opt.arg = &ca_config.configfile,
327 	},
328 	{
329 		.name = "create_serial",
330 		.desc = "If reading serial fails, create a new random serial",
331 		.type = OPTION_FLAG,
332 		.opt.flag = &ca_config.create_serial,
333 	},
334 	{
335 		.name = "crl_CA_compromise",
336 		.argname = "time",
337 		.desc = "Set the compromise time and the revocation reason to\n"
338 		    "CACompromise",
339 		.type = OPTION_ARG_FUNC,
340 		.opt.argfunc = ca_opt_crl_ca_compromise,
341 	},
342 	{
343 		.name = "crl_compromise",
344 		.argname = "time",
345 		.desc = "Set the compromise time and the revocation reason to\n"
346 		    "keyCompromise",
347 		.type = OPTION_ARG_FUNC,
348 		.opt.argfunc = ca_opt_crl_compromise,
349 	},
350 	{
351 		.name = "crl_hold",
352 		.argname = "instruction",
353 		.desc = "Set the hold instruction and the revocation reason to\n"
354 		    "certificateHold",
355 		.type = OPTION_ARG_FUNC,
356 		.opt.argfunc = ca_opt_crl_hold,
357 	},
358 	{
359 		.name = "crl_reason",
360 		.argname = "reason",
361 		.desc = "Revocation reason",
362 		.type = OPTION_ARG_FUNC,
363 		.opt.argfunc = ca_opt_crl_reason,
364 	},
365 	{
366 		.name = "crldays",
367 		.argname = "days",
368 		.desc = "Number of days before the next CRL is due",
369 		.type = OPTION_ARG_LONG,
370 		.opt.lvalue = &ca_config.crldays,
371 	},
372 	{
373 		.name = "crlexts",
374 		.argname = "section",
375 		.desc = "CRL extension section (override value in config file)",
376 		.type = OPTION_ARG,
377 		.opt.arg = &ca_config.crl_ext,
378 	},
379 	{
380 		.name = "crlhours",
381 		.argname = "hours",
382 		.desc = "Number of hours before the next CRL is due",
383 		.type = OPTION_ARG_LONG,
384 		.opt.lvalue = &ca_config.crlhours,
385 	},
386 	{
387 		.name = "crlsec",
388 		.argname = "seconds",
389 		.desc = "Number of seconds before the next CRL is due",
390 		.type = OPTION_ARG_LONG,
391 		.opt.lvalue = &ca_config.crlsec,
392 	},
393 	{
394 		.name = "days",
395 		.argname = "arg",
396 		.desc = "Number of days to certify the certificate for",
397 		.type = OPTION_ARG_LONG,
398 		.opt.lvalue = &ca_config.days,
399 	},
400 	{
401 		.name = "enddate",
402 		.argname = "YYMMDDHHMMSSZ",
403 		.desc = "Certificate validity notAfter (overrides -days)",
404 		.type = OPTION_ARG,
405 		.opt.arg = &ca_config.enddate,
406 	},
407 	{
408 		.name = "extensions",
409 		.argname = "section",
410 		.desc = "Extension section (override value in config file)",
411 		.type = OPTION_ARG,
412 		.opt.arg = &ca_config.extensions,
413 	},
414 	{
415 		.name = "extfile",
416 		.argname = "file",
417 		.desc = "Configuration file with X509v3 extentions to add",
418 		.type = OPTION_ARG,
419 		.opt.arg = &ca_config.extfile,
420 	},
421 	{
422 		.name = "gencrl",
423 		.desc = "Generate a new CRL",
424 		.type = OPTION_FLAG,
425 		.opt.flag = &ca_config.gencrl,
426 	},
427 	{
428 		.name = "in",
429 		.argname = "file",
430 		.desc = "Input file containing a single certificate request",
431 		.type = OPTION_ARG_FUNC,
432 		.opt.argfunc = ca_opt_in,
433 	},
434 	{
435 		.name = "infiles",
436 		.argname = "...",
437 		.desc = "The last argument, certificate requests to process",
438 		.type = OPTION_ARGV_FUNC,
439 		.opt.argvfunc = ca_opt_infiles,
440 	},
441 	{
442 		.name = "key",
443 		.argname = "password",
444 		.desc = "Key to decode the private key if it is encrypted",
445 		.type = OPTION_ARG,
446 		.opt.arg = &ca_config.key,
447 	},
448 	{
449 		.name = "keyfile",
450 		.argname = "file",
451 		.desc = "Private key file",
452 		.type = OPTION_ARG,
453 		.opt.arg = &ca_config.keyfile,
454 	},
455 	{
456 		.name = "keyform",
457 		.argname = "fmt",
458 		.desc = "Private key file format (DER or PEM (default))",
459 		.type = OPTION_ARG_FORMAT,
460 		.opt.value = &ca_config.keyform,
461 	},
462 	{
463 		.name = "md",
464 		.argname = "alg",
465 		.desc = "Message digest to use",
466 		.type = OPTION_ARG,
467 		.opt.arg = &ca_config.md,
468 	},
469 	{
470 		.name = "msie_hack",
471 		.type = OPTION_FLAG,
472 		.opt.flag = &ca_config.msie_hack,
473 	},
474 	{
475 		.name = "multivalue-rdn",
476 		.desc = "Enable support for multivalued RDNs",
477 		.type = OPTION_FLAG,
478 		.opt.flag = &ca_config.multirdn,
479 	},
480 	{
481 		.name = "name",
482 		.argname = "section",
483 		.desc = "Specifies the configuration file section to use",
484 		.type = OPTION_ARG,
485 		.opt.arg = &ca_config.section,
486 	},
487 	{
488 		.name = "noemailDN",
489 		.desc = "Do not add the EMAIL field to the DN",
490 		.type = OPTION_VALUE,
491 		.opt.value = &ca_config.email_dn,
492 		.value = 0,
493 	},
494 	{
495 		.name = "notext",
496 		.desc = "Do not print the generated certificate",
497 		.type = OPTION_FLAG,
498 		.opt.flag = &ca_config.notext,
499 	},
500 	{
501 		.name = "out",
502 		.argname = "file",
503 		.desc = "Output file (default stdout)",
504 		.type = OPTION_ARG,
505 		.opt.arg = &ca_config.outfile,
506 	},
507 	{
508 		.name = "outdir",
509 		.argname = "directory",
510 		.desc = " Directory to output certificates to",
511 		.type = OPTION_ARG,
512 		.opt.arg = &ca_config.outdir,
513 	},
514 	{
515 		.name = "passin",
516 		.argname = "src",
517 		.desc = "Private key input password source",
518 		.type = OPTION_ARG,
519 		.opt.arg = &ca_config.passargin,
520 	},
521 	{
522 		.name = "policy",
523 		.argname = "name",
524 		.desc = "The CA 'policy' to support",
525 		.type = OPTION_ARG,
526 		.opt.arg = &ca_config.policy,
527 	},
528 	{
529 		.name = "preserveDN",
530 		.desc = "Do not re-order the DN",
531 		.type = OPTION_FLAG,
532 		.opt.flag = &ca_config.preserve,
533 	},
534 	{
535 		.name = "revoke",
536 		.argname = "file",
537 		.desc = "Revoke a certificate (given in file)",
538 		.type = OPTION_ARG_FUNC,
539 		.opt.argfunc = ca_opt_revoke,
540 	},
541 	{
542 		.name = "selfsign",
543 		.desc = "Sign a certificate using the key associated with it",
544 		.type = OPTION_FLAG,
545 		.opt.flag = &ca_config.selfsign,
546 	},
547 	{
548 		.name = "sigopt",
549 		.argname = "nm:v",
550 		.desc = "Signature parameter in nm:v form",
551 		.type = OPTION_ARG_FUNC,
552 		.opt.argfunc = ca_opt_sigopt,
553 	},
554 	{
555 		.name = "spkac",
556 		.argname = "file",
557 		.desc = "File contains DN and signed public key and challenge",
558 		.type = OPTION_ARG_FUNC,
559 		.opt.argfunc = ca_opt_spkac,
560 	},
561 	{
562 		.name = "ss_cert",
563 		.argname = "file",
564 		.desc = "File contains a self signed certificate to sign",
565 		.type = OPTION_ARG_FUNC,
566 		.opt.argfunc = ca_opt_ss_cert,
567 	},
568 	{
569 		.name = "startdate",
570 		.argname = "YYMMDDHHMMSSZ",
571 		.desc = "Certificate validity notBefore",
572 		.type = OPTION_ARG,
573 		.opt.arg = &ca_config.startdate,
574 	},
575 	{
576 		.name = "status",
577 		.argname = "serial",
578 		.desc = "Shows certificate status given the serial number",
579 		.type = OPTION_ARG,
580 		.opt.arg = &ca_config.serial_status,
581 	},
582 	{
583 		.name = "subj",
584 		.argname = "arg",
585 		.desc = "Use arg instead of request's subject",
586 		.type = OPTION_ARG,
587 		.opt.arg = &ca_config.subj,
588 	},
589 	{
590 		.name = "updatedb",
591 		.desc = "Updates db for expired certificates",
592 		.type = OPTION_FLAG,
593 		.opt.flag = &ca_config.doupdatedb,
594 	},
595 	{
596 		.name = "utf8",
597 		.desc = "Input characters are in UTF-8 (default ASCII)",
598 		.type = OPTION_FUNC,
599 		.opt.func = ca_opt_chtype_utf8,
600 	},
601 	{
602 		.name = "verbose",
603 		.desc = "Verbose output during processing",
604 		.type = OPTION_FLAG,
605 		.opt.flag = &ca_config.verbose,
606 	},
607 	{ NULL },
608 };
609 
610 /*
611  * Set a certificate time based on user provided input. Make sure
612  * what we put in the certificate is legit for RFC 5280. Returns
613  * 0 on success, -1 on an invalid time string. Strings must be
614  * YYYYMMDDHHMMSSZ for post 2050 dates. YYYYMMDDHHMMSSZ or
615  * YYMMDDHHMMSSZ is accepted for pre 2050 dates, and fixed up to
616  * be the correct format in the certificate.
617  */
618 static int
setCertificateTime(ASN1_TIME * x509time,char * timestring)619 setCertificateTime(ASN1_TIME *x509time, char *timestring)
620 {
621 	struct tm tm1;
622 
623 	if (ASN1_time_parse(timestring, strlen(timestring), &tm1, 0) == -1)
624 		return (-1);
625 	if (!ASN1_TIME_set_tm(x509time, &tm1))
626 		return (-1);
627 	return 0;
628 }
629 
630 static void
ca_usage(void)631 ca_usage(void)
632 {
633 	fprintf(stderr,
634 	    "usage: ca  [-batch] [-cert file] [-config file] [-create_serial]\n"
635 	    "    [-crl_CA_compromise time] [-crl_compromise time]\n"
636 	    "    [-crl_hold instruction] [-crl_reason reason] [-crldays days]\n"
637 	    "    [-crlexts section] [-crlhours hours] [-crlsec seconds]\n"
638 	    "    [-days arg] [-enddate date] [-extensions section]\n"
639 	    "    [-extfile file] [-gencrl] [-in file] [-infiles]\n"
640 	    "    [-key password] [-keyfile file] [-keyform pem | der]\n"
641 	    "    [-md alg] [-multivalue-rdn] [-name section]\n"
642 	    "    [-noemailDN] [-notext] [-out file] [-outdir directory]\n"
643 	    "    [-passin arg] [-policy name] [-preserveDN] [-revoke file]\n"
644 	    "    [-selfsign] [-sigopt nm:v] [-spkac file] [-ss_cert file]\n"
645 	    "    [-startdate date] [-status serial] [-subj arg] [-updatedb]\n"
646 	    "    [-utf8] [-verbose]\n\n");
647 	options_usage(ca_options);
648 	fprintf(stderr, "\n");
649 }
650 
651 int
ca_main(int argc,char ** argv)652 ca_main(int argc, char **argv)
653 {
654 	int free_key = 0;
655 	int total = 0;
656 	int total_done = 0;
657 	int ret = 1;
658 	long errorline = -1;
659 	EVP_PKEY *pkey = NULL;
660 	int output_der = 0;
661 	char *serialfile = NULL;
662 	char *crlnumberfile = NULL;
663 	char *tmp_email_dn = NULL;
664 	BIGNUM *serial = NULL;
665 	BIGNUM *crlnumber = NULL;
666 	unsigned long nameopt = 0, certopt = 0;
667 	int default_op = 1;
668 	int ext_copy = EXT_COPY_NONE;
669 	X509 *x509 = NULL, *x509p = NULL;
670 	X509 *x = NULL;
671 	BIO *in = NULL, *out = NULL, *Sout = NULL, *Cout = NULL;
672 	char *dbfile = NULL;
673 	CA_DB *db = NULL;
674 	X509_CRL *crl = NULL;
675 	X509_REVOKED *r = NULL;
676 	ASN1_TIME *tmptm = NULL;
677 	ASN1_INTEGER *tmpserial;
678 	char *f;
679 	const char *p;
680 	char *const *pp;
681 	int i, j;
682 	const EVP_MD *dgst = NULL;
683 	STACK_OF(CONF_VALUE) *attribs = NULL;
684 	STACK_OF(X509) *cert_sk = NULL;
685 	char *tofree = NULL;
686 	DB_ATTR db_attr;
687 
688 	if (single_execution) {
689 		if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
690 			perror("pledge");
691 			exit(1);
692 		}
693 	}
694 
695 	memset(&ca_config, 0, sizeof(ca_config));
696 	ca_config.email_dn = 1;
697 	ca_config.keyform = FORMAT_PEM;
698 	ca_config.chtype = MBSTRING_ASC;
699 	ca_config.rev_type = REV_NONE;
700 
701 	conf = NULL;
702 
703 	if (options_parse(argc, argv, ca_options, NULL, NULL) != 0) {
704 		ca_usage();
705 		goto err;
706 	}
707 
708 	/*****************************************************************/
709 	tofree = NULL;
710 	if (ca_config.configfile == NULL)
711 		ca_config.configfile = getenv("OPENSSL_CONF");
712 	if (ca_config.configfile == NULL) {
713 		if ((tofree = make_config_name()) == NULL) {
714 			BIO_printf(bio_err, "error making config file name\n");
715 			goto err;
716 		}
717 		ca_config.configfile = tofree;
718 	}
719 	BIO_printf(bio_err, "Using configuration from %s\n",
720 	    ca_config.configfile);
721 	conf = NCONF_new(NULL);
722 	if (NCONF_load(conf, ca_config.configfile, &errorline) <= 0) {
723 		if (errorline <= 0)
724 			BIO_printf(bio_err,
725 			    "error loading the config file '%s'\n",
726 			    ca_config.configfile);
727 		else
728 			BIO_printf(bio_err,
729 			    "error on line %ld of config file '%s'\n",
730 			    errorline, ca_config.configfile);
731 		goto err;
732 	}
733 	free(tofree);
734 	tofree = NULL;
735 
736 	/* Lets get the config section we are using */
737 	if (ca_config.section == NULL) {
738 		ca_config.section = NCONF_get_string(conf, BASE_SECTION,
739 		    ENV_DEFAULT_CA);
740 		if (ca_config.section == NULL) {
741 			lookup_fail(BASE_SECTION, ENV_DEFAULT_CA);
742 			goto err;
743 		}
744 	}
745 	if (conf != NULL) {
746 		p = NCONF_get_string(conf, NULL, "oid_file");
747 		if (p == NULL)
748 			ERR_clear_error();
749 		if (p != NULL) {
750 			BIO *oid_bio;
751 
752 			oid_bio = BIO_new_file(p, "r");
753 			if (oid_bio == NULL) {
754 				/*
755 				BIO_printf(bio_err,
756 				    "problems opening %s for extra oid's\n", p);
757 				ERR_print_errors(bio_err);
758 				*/
759 				ERR_clear_error();
760 			} else {
761 				OBJ_create_objects(oid_bio);
762 				BIO_free(oid_bio);
763 			}
764 		}
765 		if (!add_oid_section(bio_err, conf)) {
766 			ERR_print_errors(bio_err);
767 			goto err;
768 		}
769 	}
770 	f = NCONF_get_string(conf, ca_config.section, STRING_MASK);
771 	if (f == NULL)
772 		ERR_clear_error();
773 
774 	if (f != NULL && !ASN1_STRING_set_default_mask_asc(f)) {
775 		BIO_printf(bio_err,
776 		    "Invalid global string mask setting %s\n", f);
777 		goto err;
778 	}
779 	if (ca_config.chtype != MBSTRING_UTF8) {
780 		f = NCONF_get_string(conf, ca_config.section, UTF8_IN);
781 		if (f == NULL)
782 			ERR_clear_error();
783 		else if (strcmp(f, "yes") == 0)
784 			ca_config.chtype = MBSTRING_UTF8;
785 	}
786 	db_attr.unique_subject = 1;
787 	p = NCONF_get_string(conf, ca_config.section, ENV_UNIQUE_SUBJECT);
788 	if (p != NULL) {
789 		db_attr.unique_subject = parse_yesno(p, 1);
790 	} else
791 		ERR_clear_error();
792 
793 	in = BIO_new(BIO_s_file());
794 	out = BIO_new(BIO_s_file());
795 	Sout = BIO_new(BIO_s_file());
796 	Cout = BIO_new(BIO_s_file());
797 	if ((in == NULL) || (out == NULL) || (Sout == NULL) || (Cout == NULL)) {
798 		ERR_print_errors(bio_err);
799 		goto err;
800 	}
801 	/*****************************************************************/
802 	/* report status of cert with serial number given on command line */
803 	if (ca_config.serial_status) {
804 		if ((dbfile = NCONF_get_string(conf, ca_config.section,
805 		    ENV_DATABASE)) == NULL) {
806 			lookup_fail(ca_config.section, ENV_DATABASE);
807 			goto err;
808 		}
809 		db = load_index(dbfile, &db_attr);
810 		if (db == NULL)
811 			goto err;
812 
813 		if (!index_index(db))
814 			goto err;
815 
816 		if (get_certificate_status(ca_config.serial_status, db) != 1)
817 			BIO_printf(bio_err, "Error verifying serial %s!\n",
818 			    ca_config.serial_status);
819 		goto err;
820 	}
821 	/*****************************************************************/
822 	/* we definitely need a private key, so let's get it */
823 
824 	if ((ca_config.keyfile == NULL) &&
825 	    ((ca_config.keyfile = NCONF_get_string(conf, ca_config.section,
826 	    ENV_PRIVATE_KEY)) == NULL)) {
827 		lookup_fail(ca_config.section, ENV_PRIVATE_KEY);
828 		goto err;
829 	}
830 	if (ca_config.key == NULL) {
831 		free_key = 1;
832 		if (!app_passwd(bio_err, ca_config.passargin, NULL,
833 		    &ca_config.key, NULL)) {
834 			BIO_printf(bio_err, "Error getting password\n");
835 			goto err;
836 		}
837 	}
838 	pkey = load_key(bio_err, ca_config.keyfile, ca_config.keyform, 0,
839 	    ca_config.key, "CA private key");
840 	if (ca_config.key != NULL)
841 		explicit_bzero(ca_config.key, strlen(ca_config.key));
842 	if (pkey == NULL) {
843 		/* load_key() has already printed an appropriate message */
844 		goto err;
845 	}
846 	/*****************************************************************/
847 	/* we need a certificate */
848 	if (!ca_config.selfsign || ca_config.spkac_file != NULL ||
849 	    ca_config.ss_cert_file != NULL || ca_config.gencrl) {
850 		if ((ca_config.certfile == NULL) &&
851 		    ((ca_config.certfile = NCONF_get_string(conf,
852 		    ca_config.section, ENV_CERTIFICATE)) == NULL)) {
853 			lookup_fail(ca_config.section, ENV_CERTIFICATE);
854 			goto err;
855 		}
856 		x509 = load_cert(bio_err, ca_config.certfile, FORMAT_PEM, NULL,
857 		    "CA certificate");
858 		if (x509 == NULL)
859 			goto err;
860 
861 		if (!X509_check_private_key(x509, pkey)) {
862 			BIO_printf(bio_err,
863 			    "CA certificate and CA private key do not match\n");
864 			goto err;
865 		}
866 	}
867 	if (!ca_config.selfsign)
868 		x509p = x509;
869 
870 	f = NCONF_get_string(conf, BASE_SECTION, ENV_PRESERVE);
871 	if (f == NULL)
872 		ERR_clear_error();
873 	if ((f != NULL) && ((*f == 'y') || (*f == 'Y')))
874 		ca_config.preserve = 1;
875 	f = NCONF_get_string(conf, BASE_SECTION, ENV_MSIE_HACK);
876 	if (f == NULL)
877 		ERR_clear_error();
878 	if ((f != NULL) && ((*f == 'y') || (*f == 'Y')))
879 		ca_config.msie_hack = 1;
880 
881 	f = NCONF_get_string(conf, ca_config.section, ENV_NAMEOPT);
882 
883 	if (f != NULL) {
884 		if (!set_name_ex(&nameopt, f)) {
885 			BIO_printf(bio_err,
886 			    "Invalid name options: \"%s\"\n", f);
887 			goto err;
888 		}
889 		default_op = 0;
890 	} else
891 		ERR_clear_error();
892 
893 	f = NCONF_get_string(conf, ca_config.section, ENV_CERTOPT);
894 
895 	if (f != NULL) {
896 		if (!set_cert_ex(&certopt, f)) {
897 			BIO_printf(bio_err,
898 			    "Invalid certificate options: \"%s\"\n", f);
899 			goto err;
900 		}
901 		default_op = 0;
902 	} else
903 		ERR_clear_error();
904 
905 	f = NCONF_get_string(conf, ca_config.section, ENV_EXTCOPY);
906 
907 	if (f != NULL) {
908 		if (!set_ext_copy(&ext_copy, f)) {
909 			BIO_printf(bio_err,
910 			    "Invalid extension copy option: \"%s\"\n", f);
911 			goto err;
912 		}
913 	} else
914 		ERR_clear_error();
915 
916 	/*****************************************************************/
917 	/* lookup where to write new certificates */
918 	if (ca_config.outdir == NULL && ca_config.req) {
919 		if ((ca_config.outdir = NCONF_get_string(conf,
920 		    ca_config.section, ENV_NEW_CERTS_DIR)) == NULL) {
921 			BIO_printf(bio_err, "output directory %s not defined\n",
922 			    ENV_NEW_CERTS_DIR);
923 			goto err;
924 		}
925 	}
926 	/*****************************************************************/
927 	/* we need to load the database file */
928 	if ((dbfile = NCONF_get_string(conf, ca_config.section,
929 	    ENV_DATABASE)) == NULL) {
930 		lookup_fail(ca_config.section, ENV_DATABASE);
931 		goto err;
932 	}
933 	db = load_index(dbfile, &db_attr);
934 	if (db == NULL)
935 		goto err;
936 
937 	/* Lets check some fields */
938 	for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
939 		pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
940 		if ((pp[DB_type][0] != DB_TYPE_REV) &&
941 		    (pp[DB_rev_date][0] != '\0')) {
942 			BIO_printf(bio_err,
943 			    "entry %d: not revoked yet, but has a revocation date\n",
944 			    i + 1);
945 			goto err;
946 		}
947 		if ((pp[DB_type][0] == DB_TYPE_REV) &&
948 		    !make_revoked(NULL, pp[DB_rev_date])) {
949 			BIO_printf(bio_err, " in entry %d\n", i + 1);
950 			goto err;
951 		}
952 		if (!check_time_format((char *) pp[DB_exp_date])) {
953 			BIO_printf(bio_err, "entry %d: invalid expiry date\n",
954 			    i + 1);
955 			goto err;
956 		}
957 		p = pp[DB_serial];
958 		j = strlen(p);
959 		if (*p == '-') {
960 			p++;
961 			j--;
962 		}
963 		if ((j & 1) || (j < 2)) {
964 			BIO_printf(bio_err,
965 			    "entry %d: bad serial number length (%d)\n",
966 			    i + 1, j);
967 			goto err;
968 		}
969 		while (*p) {
970 			if (!(((*p >= '0') && (*p <= '9')) ||
971 			    ((*p >= 'A') && (*p <= 'F')) ||
972 			    ((*p >= 'a') && (*p <= 'f')))) {
973 				BIO_printf(bio_err,
974 				    "entry %d: bad serial number characters, char pos %ld, char is '%c'\n",
975 				    i + 1, (long) (p - pp[DB_serial]), *p);
976 				goto err;
977 			}
978 			p++;
979 		}
980 	}
981 	if (ca_config.verbose) {
982 		BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
983 		TXT_DB_write(out, db->db);
984 		BIO_printf(bio_err, "%d entries loaded from the database\n",
985 		    sk_OPENSSL_PSTRING_num(db->db->data));
986 		BIO_printf(bio_err, "generating index\n");
987 	}
988 	if (!index_index(db))
989 		goto err;
990 
991 	/*****************************************************************/
992 	/* Update the db file for expired certificates */
993 	if (ca_config.doupdatedb) {
994 		if (ca_config.verbose)
995 			BIO_printf(bio_err, "Updating %s ...\n", dbfile);
996 
997 		i = do_updatedb(db);
998 		if (i == -1) {
999 			BIO_printf(bio_err, "Malloc failure\n");
1000 			goto err;
1001 		} else if (i == 0) {
1002 			if (ca_config.verbose)
1003 				BIO_printf(bio_err,
1004 				    "No entries found to mark expired\n");
1005 		} else {
1006 			if (!save_index(dbfile, "new", db))
1007 				goto err;
1008 
1009 			if (!rotate_index(dbfile, "new", "old"))
1010 				goto err;
1011 
1012 			if (ca_config.verbose)
1013 				BIO_printf(bio_err,
1014 				    "Done. %d entries marked as expired\n", i);
1015 		}
1016 	}
1017 	/*****************************************************************/
1018 	/* Read extentions config file                                   */
1019 	if (ca_config.extfile != NULL) {
1020 		extconf = NCONF_new(NULL);
1021 		if (NCONF_load(extconf, ca_config.extfile, &errorline) <= 0) {
1022 			if (errorline <= 0)
1023 				BIO_printf(bio_err,
1024 				    "ERROR: loading the config file '%s'\n",
1025 				    ca_config.extfile);
1026 			else
1027 				BIO_printf(bio_err,
1028 				    "ERROR: on line %ld of config file '%s'\n",
1029 				    errorline, ca_config.extfile);
1030 			ret = 1;
1031 			goto err;
1032 		}
1033 		if (ca_config.verbose)
1034 			BIO_printf(bio_err,
1035 			    "Successfully loaded extensions file %s\n",
1036 			    ca_config.extfile);
1037 
1038 		/* We can have sections in the ext file */
1039 		if (ca_config.extensions == NULL &&
1040 		    (ca_config.extensions = NCONF_get_string(extconf, "default",
1041 		    "extensions")) == NULL)
1042 			ca_config.extensions = "default";
1043 	}
1044 	/*****************************************************************/
1045 	if (ca_config.req || ca_config.gencrl) {
1046 		if (ca_config.outfile != NULL) {
1047 			if (BIO_write_filename(Sout, ca_config.outfile) <= 0) {
1048 				perror(ca_config.outfile);
1049 				goto err;
1050 			}
1051 		} else {
1052 			BIO_set_fp(Sout, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
1053 		}
1054 	}
1055 	if ((ca_config.md == NULL) &&
1056 	    ((ca_config.md = NCONF_get_string(conf, ca_config.section,
1057 	    ENV_DEFAULT_MD)) == NULL)) {
1058 		lookup_fail(ca_config.section, ENV_DEFAULT_MD);
1059 		goto err;
1060 	}
1061 	if (strcmp(ca_config.md, "default") == 0) {
1062 		int def_nid;
1063 		if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0) {
1064 			BIO_puts(bio_err, "no default digest\n");
1065 			goto err;
1066 		}
1067 		ca_config.md = (char *) OBJ_nid2sn(def_nid);
1068 		if (ca_config.md == NULL)
1069 			goto err;
1070 	}
1071 	if ((dgst = EVP_get_digestbyname(ca_config.md)) == NULL) {
1072 		BIO_printf(bio_err,
1073 		    "%s is an unsupported message digest type\n", ca_config.md);
1074 		goto err;
1075 	}
1076 	if (ca_config.req) {
1077 		if ((ca_config.email_dn == 1) &&
1078 		    ((tmp_email_dn = NCONF_get_string(conf, ca_config.section,
1079 		    ENV_DEFAULT_EMAIL_DN)) != NULL)) {
1080 			if (strcmp(tmp_email_dn, "no") == 0)
1081 				ca_config.email_dn = 0;
1082 		}
1083 		if (ca_config.verbose)
1084 			BIO_printf(bio_err, "message digest is %s\n",
1085 			    OBJ_nid2ln(dgst->type));
1086 		if ((ca_config.policy == NULL) &&
1087 		    ((ca_config.policy = NCONF_get_string(conf,
1088 		    ca_config.section, ENV_POLICY)) == NULL)) {
1089 			lookup_fail(ca_config.section, ENV_POLICY);
1090 			goto err;
1091 		}
1092 		if (ca_config.verbose)
1093 			BIO_printf(bio_err, "policy is %s\n", ca_config.policy);
1094 
1095 		if ((serialfile = NCONF_get_string(conf, ca_config.section,
1096 		    ENV_SERIAL)) == NULL) {
1097 			lookup_fail(ca_config.section, ENV_SERIAL);
1098 			goto err;
1099 		}
1100 		if (extconf == NULL) {
1101 			/*
1102 			 * no '-extfile' option, so we look for extensions in
1103 			 * the main configuration file
1104 			 */
1105 			if (ca_config.extensions == NULL) {
1106 				ca_config.extensions = NCONF_get_string(conf,
1107 				    ca_config.section, ENV_EXTENSIONS);
1108 				if (ca_config.extensions == NULL)
1109 					ERR_clear_error();
1110 			}
1111 			if (ca_config.extensions != NULL) {
1112 				/* Check syntax of file */
1113 				X509V3_CTX ctx;
1114 				X509V3_set_ctx_test(&ctx);
1115 				X509V3_set_nconf(&ctx, conf);
1116 				if (!X509V3_EXT_add_nconf(conf, &ctx,
1117 				    ca_config.extensions, NULL)) {
1118 					BIO_printf(bio_err,
1119 					    "Error Loading extension section %s\n",
1120 					    ca_config.extensions);
1121 					ret = 1;
1122 					goto err;
1123 				}
1124 			}
1125 		}
1126 		if (ca_config.startdate == NULL) {
1127 			ca_config.startdate = NCONF_get_string(conf,
1128 			    ca_config.section, ENV_DEFAULT_STARTDATE);
1129 			if (ca_config.startdate == NULL)
1130 				ERR_clear_error();
1131 		}
1132 		if (ca_config.startdate == NULL)
1133 			ca_config.startdate = "today";
1134 
1135 		if (ca_config.enddate == NULL) {
1136 			ca_config.enddate = NCONF_get_string(conf,
1137 			    ca_config.section, ENV_DEFAULT_ENDDATE);
1138 			if (ca_config.enddate == NULL)
1139 				ERR_clear_error();
1140 		}
1141 		if (ca_config.days == 0 && ca_config.enddate == NULL) {
1142 			if (!NCONF_get_number(conf, ca_config.section,
1143 				ENV_DEFAULT_DAYS, &ca_config.days))
1144 				ca_config.days = 0;
1145 		}
1146 		if (ca_config.enddate == NULL && ca_config.days == 0) {
1147 			BIO_printf(bio_err,
1148 			    "cannot lookup how many days to certify for\n");
1149 			goto err;
1150 		}
1151 		if ((serial = load_serial(serialfile, ca_config.create_serial,
1152 		    NULL)) == NULL) {
1153 			BIO_printf(bio_err,
1154 			    "error while loading serial number\n");
1155 			goto err;
1156 		}
1157 		if (ca_config.verbose) {
1158 			if (BN_is_zero(serial))
1159 				BIO_printf(bio_err,
1160 				    "next serial number is 00\n");
1161 			else {
1162 				if ((f = BN_bn2hex(serial)) == NULL)
1163 					goto err;
1164 				BIO_printf(bio_err,
1165 				    "next serial number is %s\n", f);
1166 				free(f);
1167 			}
1168 		}
1169 		if ((attribs = NCONF_get_section(conf, ca_config.policy)) ==
1170 		    NULL) {
1171 			BIO_printf(bio_err, "unable to find 'section' for %s\n",
1172 			    ca_config.policy);
1173 			goto err;
1174 		}
1175 		if ((cert_sk = sk_X509_new_null()) == NULL) {
1176 			BIO_printf(bio_err, "Memory allocation failure\n");
1177 			goto err;
1178 		}
1179 		if (ca_config.spkac_file != NULL) {
1180 			total++;
1181 			j = certify_spkac(&x, ca_config.spkac_file, pkey, x509,
1182 			    dgst, ca_config.sigopts, attribs, db, serial,
1183 			    ca_config.subj, ca_config.chtype,
1184 			    ca_config.multirdn, ca_config.email_dn,
1185 			    ca_config.startdate, ca_config.enddate,
1186 			    ca_config.days, ca_config.extensions, conf,
1187 			    ca_config.verbose, certopt, nameopt, default_op,
1188 			    ext_copy);
1189 			if (j < 0)
1190 				goto err;
1191 			if (j > 0) {
1192 				total_done++;
1193 				BIO_printf(bio_err, "\n");
1194 				if (!BN_add_word(serial, 1))
1195 					goto err;
1196 				if (!sk_X509_push(cert_sk, x)) {
1197 					BIO_printf(bio_err,
1198 					    "Memory allocation failure\n");
1199 					goto err;
1200 				}
1201 				if (ca_config.outfile != NULL) {
1202 					output_der = 1;
1203 					ca_config.batch = 1;
1204 				}
1205 			}
1206 		}
1207 		if (ca_config.ss_cert_file != NULL) {
1208 			total++;
1209 			j = certify_cert(&x, ca_config.ss_cert_file, pkey, x509,
1210 			    dgst, ca_config.sigopts, attribs, db, serial,
1211 			    ca_config.subj, ca_config.chtype,
1212 			    ca_config.multirdn, ca_config.email_dn,
1213 			    ca_config.startdate, ca_config.enddate,
1214 			    ca_config.days, ca_config.batch,
1215 			    ca_config.extensions, conf, ca_config.verbose,
1216 			    certopt, nameopt, default_op, ext_copy);
1217 			if (j < 0)
1218 				goto err;
1219 			if (j > 0) {
1220 				total_done++;
1221 				BIO_printf(bio_err, "\n");
1222 				if (!BN_add_word(serial, 1))
1223 					goto err;
1224 				if (!sk_X509_push(cert_sk, x)) {
1225 					BIO_printf(bio_err,
1226 					    "Memory allocation failure\n");
1227 					goto err;
1228 				}
1229 			}
1230 		}
1231 		if (ca_config.infile != NULL) {
1232 			total++;
1233 			j = certify(&x, ca_config.infile, pkey, x509p, dgst,
1234 			    ca_config.sigopts, attribs, db, serial,
1235 			    ca_config.subj, ca_config.chtype,
1236 			    ca_config.multirdn, ca_config.email_dn,
1237 			    ca_config.startdate, ca_config.enddate,
1238 			    ca_config.days, ca_config.batch,
1239 			    ca_config.extensions, conf, ca_config.verbose,
1240 			    certopt, nameopt, default_op, ext_copy,
1241 			    ca_config.selfsign);
1242 			if (j < 0)
1243 				goto err;
1244 			if (j > 0) {
1245 				total_done++;
1246 				BIO_printf(bio_err, "\n");
1247 				if (!BN_add_word(serial, 1))
1248 					goto err;
1249 				if (!sk_X509_push(cert_sk, x)) {
1250 					BIO_printf(bio_err,
1251 					    "Memory allocation failure\n");
1252 					goto err;
1253 				}
1254 			}
1255 		}
1256 		for (i = 0; i < ca_config.infiles_num; i++) {
1257 			total++;
1258 			j = certify(&x, ca_config.infiles[i], pkey, x509p, dgst,
1259 			    ca_config.sigopts, attribs, db, serial,
1260 			    ca_config.subj, ca_config.chtype,
1261 			    ca_config.multirdn, ca_config.email_dn,
1262 			    ca_config.startdate, ca_config.enddate,
1263 			    ca_config.days, ca_config.batch,
1264 			    ca_config.extensions, conf, ca_config.verbose,
1265 			    certopt, nameopt, default_op, ext_copy,
1266 			    ca_config.selfsign);
1267 			if (j < 0)
1268 				goto err;
1269 			if (j > 0) {
1270 				total_done++;
1271 				BIO_printf(bio_err, "\n");
1272 				if (!BN_add_word(serial, 1))
1273 					goto err;
1274 				if (!sk_X509_push(cert_sk, x)) {
1275 					BIO_printf(bio_err,
1276 					    "Memory allocation failure\n");
1277 					goto err;
1278 				}
1279 			}
1280 		}
1281 		/*
1282 		 * we have a stack of newly certified certificates and a data
1283 		 * base and serial number that need updating
1284 		 */
1285 
1286 		if (sk_X509_num(cert_sk) > 0) {
1287 			if (!ca_config.batch) {
1288 				char answer[10];
1289 
1290 				BIO_printf(bio_err,
1291 				    "\n%d out of %d certificate requests certified, commit? [y/n]",
1292 				    total_done, total);
1293 				(void) BIO_flush(bio_err);
1294 				if (fgets(answer, sizeof answer - 1, stdin) ==
1295 				    NULL) {
1296 					BIO_printf(bio_err,
1297 					    "CERTIFICATION CANCELED: I/O error\n");
1298 					ret = 0;
1299 					goto err;
1300 				}
1301 				if ((answer[0] != 'y') && (answer[0] != 'Y')) {
1302 					BIO_printf(bio_err,
1303 					    "CERTIFICATION CANCELED\n");
1304 					ret = 0;
1305 					goto err;
1306 				}
1307 			}
1308 			BIO_printf(bio_err,
1309 			    "Write out database with %d new entries\n",
1310 			    sk_X509_num(cert_sk));
1311 
1312 			if (!save_serial(serialfile, "new", serial, NULL))
1313 				goto err;
1314 
1315 			if (!save_index(dbfile, "new", db))
1316 				goto err;
1317 		}
1318 		if (ca_config.verbose)
1319 			BIO_printf(bio_err, "writing new certificates\n");
1320 		for (i = 0; i < sk_X509_num(cert_sk); i++) {
1321 			ASN1_INTEGER *serialNumber;
1322 			int k;
1323 			char *serialstr;
1324 			unsigned char *data;
1325 			char pempath[PATH_MAX];
1326 
1327 			x = sk_X509_value(cert_sk, i);
1328 
1329 			serialNumber = X509_get_serialNumber(x);
1330 			j = ASN1_STRING_length(serialNumber);
1331 			data = ASN1_STRING_data(serialNumber);
1332 
1333 			if (j > 0)
1334 				serialstr = bin2hex(data, j);
1335 			else
1336 				serialstr = strdup("00");
1337 			if (serialstr != NULL) {
1338 				k = snprintf(pempath, sizeof(pempath),
1339 				    "%s/%s.pem", ca_config.outdir, serialstr);
1340 				free(serialstr);
1341 				if (k < 0 || k >= sizeof(pempath)) {
1342 					BIO_printf(bio_err,
1343 					    "certificate file name too long\n");
1344 					goto err;
1345 				}
1346 			} else {
1347 				BIO_printf(bio_err,
1348 				    "memory allocation failed\n");
1349 				goto err;
1350 			}
1351 			if (ca_config.verbose)
1352 				BIO_printf(bio_err, "writing %s\n", pempath);
1353 
1354 			if (BIO_write_filename(Cout, pempath) <= 0) {
1355 				perror(pempath);
1356 				goto err;
1357 			}
1358 			if (!write_new_certificate(Cout, x, 0,
1359 			    ca_config.notext))
1360 				goto err;
1361 			if (!write_new_certificate(Sout, x, output_der,
1362 			    ca_config.notext))
1363 				goto err;
1364 		}
1365 
1366 		if (sk_X509_num(cert_sk)) {
1367 			/* Rename the database and the serial file */
1368 			if (!rotate_serial(serialfile, "new", "old"))
1369 				goto err;
1370 
1371 			if (!rotate_index(dbfile, "new", "old"))
1372 				goto err;
1373 
1374 			BIO_printf(bio_err, "Data Base Updated\n");
1375 		}
1376 	}
1377 	/*****************************************************************/
1378 	if (ca_config.gencrl) {
1379 		int crl_v2 = 0;
1380 		if (ca_config.crl_ext == NULL) {
1381 			ca_config.crl_ext = NCONF_get_string(conf,
1382 			    ca_config.section, ENV_CRLEXT);
1383 			if (ca_config.crl_ext == NULL)
1384 				ERR_clear_error();
1385 		}
1386 		if (ca_config.crl_ext != NULL) {
1387 			/* Check syntax of file */
1388 			X509V3_CTX ctx;
1389 			X509V3_set_ctx_test(&ctx);
1390 			X509V3_set_nconf(&ctx, conf);
1391 			if (!X509V3_EXT_add_nconf(conf, &ctx, ca_config.crl_ext,
1392 			    NULL)) {
1393 				BIO_printf(bio_err,
1394 				    "Error Loading CRL extension section %s\n",
1395 				    ca_config.crl_ext);
1396 				ret = 1;
1397 				goto err;
1398 			}
1399 		}
1400 		if ((crlnumberfile = NCONF_get_string(conf, ca_config.section,
1401 		    ENV_CRLNUMBER)) != NULL)
1402 			if ((crlnumber = load_serial(crlnumberfile, 0,
1403 			    NULL)) == NULL) {
1404 				BIO_printf(bio_err,
1405 				    "error while loading CRL number\n");
1406 				goto err;
1407 			}
1408 		if (!ca_config.crldays && !ca_config.crlhours &&
1409 		    !ca_config.crlsec) {
1410 			if (!NCONF_get_number(conf, ca_config.section,
1411 			    ENV_DEFAULT_CRL_DAYS, &ca_config.crldays))
1412 				ca_config.crldays = 0;
1413 			if (!NCONF_get_number(conf, ca_config.section,
1414 			    ENV_DEFAULT_CRL_HOURS, &ca_config.crlhours))
1415 				ca_config.crlhours = 0;
1416 			ERR_clear_error();
1417 		}
1418 		if ((ca_config.crldays == 0) && (ca_config.crlhours == 0) &&
1419 		    (ca_config.crlsec == 0)) {
1420 			BIO_printf(bio_err,
1421 			    "cannot lookup how long until the next CRL is issued\n");
1422 			goto err;
1423 		}
1424 		if (ca_config.verbose)
1425 			BIO_printf(bio_err, "making CRL\n");
1426 		if ((crl = X509_CRL_new()) == NULL)
1427 			goto err;
1428 		if (!X509_CRL_set_issuer_name(crl, X509_get_subject_name(x509)))
1429 			goto err;
1430 
1431 		if ((tmptm = X509_gmtime_adj(NULL, 0)) == NULL)
1432 			goto err;
1433 		if (!X509_CRL_set_lastUpdate(crl, tmptm))
1434 			goto err;
1435 		if (X509_time_adj_ex(tmptm, ca_config.crldays,
1436 		    ca_config.crlhours * 60 * 60 + ca_config.crlsec, NULL) ==
1437 		    NULL) {
1438 			BIO_puts(bio_err, "error setting CRL nextUpdate\n");
1439 			goto err;
1440 		}
1441 		if (!X509_CRL_set_nextUpdate(crl, tmptm))
1442 			goto err;
1443 		ASN1_TIME_free(tmptm);
1444 		tmptm = NULL;
1445 
1446 		for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
1447 			pp = sk_OPENSSL_PSTRING_value(db->db->data, i);
1448 			if (pp[DB_type][0] == DB_TYPE_REV) {
1449 				if ((r = X509_REVOKED_new()) == NULL)
1450 					goto err;
1451 				j = make_revoked(r, pp[DB_rev_date]);
1452 				if (!j)
1453 					goto err;
1454 				if (j == 2)
1455 					crl_v2 = 1;
1456 				if (!BN_hex2bn(&serial, pp[DB_serial]))
1457 					goto err;
1458 				tmpserial = BN_to_ASN1_INTEGER(serial, NULL);
1459 				BN_free(serial);
1460 				serial = NULL;
1461 				if (tmpserial == NULL)
1462 					goto err;
1463 				if (!X509_REVOKED_set_serialNumber(r, tmpserial)) {
1464 					ASN1_INTEGER_free(tmpserial);
1465 					goto err;
1466 				}
1467 				ASN1_INTEGER_free(tmpserial);
1468 				if (!X509_CRL_add0_revoked(crl, r))
1469 					goto err;
1470 				r = NULL;
1471 			}
1472 		}
1473 
1474 		/*
1475 		 * sort the data so it will be written in serial number order
1476 		 */
1477 		X509_CRL_sort(crl);
1478 
1479 		/* we now have a CRL */
1480 		if (ca_config.verbose)
1481 			BIO_printf(bio_err, "signing CRL\n");
1482 
1483 		/* Add any extensions asked for */
1484 
1485 		if (ca_config.crl_ext != NULL || crlnumberfile != NULL) {
1486 			X509V3_CTX crlctx;
1487 			X509V3_set_ctx(&crlctx, x509, NULL, NULL, crl, 0);
1488 			X509V3_set_nconf(&crlctx, conf);
1489 
1490 			if (ca_config.crl_ext != NULL)
1491 				if (!X509V3_EXT_CRL_add_nconf(conf, &crlctx,
1492 				    ca_config.crl_ext, crl))
1493 					goto err;
1494 			if (crlnumberfile != NULL) {
1495 				tmpserial = BN_to_ASN1_INTEGER(crlnumber, NULL);
1496 				if (tmpserial == NULL)
1497 					goto err;
1498 				if (!X509_CRL_add1_ext_i2d(crl, NID_crl_number,
1499 				    tmpserial, 0, 0)) {
1500 					ASN1_INTEGER_free(tmpserial);
1501 					goto err;
1502 				}
1503 				ASN1_INTEGER_free(tmpserial);
1504 				crl_v2 = 1;
1505 				if (!BN_add_word(crlnumber, 1))
1506 					goto err;
1507 			}
1508 		}
1509 		if (ca_config.crl_ext != NULL || crl_v2) {
1510 			if (!X509_CRL_set_version(crl, 1))
1511 				goto err;	/* version 2 CRL */
1512 		}
1513 		if (crlnumberfile != NULL)	/* we have a CRL number that
1514 						 * need updating */
1515 			if (!save_serial(crlnumberfile, "new", crlnumber, NULL))
1516 				goto err;
1517 
1518 		BN_free(crlnumber);
1519 		crlnumber = NULL;
1520 
1521 		if (!do_X509_CRL_sign(bio_err, crl, pkey, dgst,
1522 		    ca_config.sigopts))
1523 			goto err;
1524 
1525 		if (!PEM_write_bio_X509_CRL(Sout, crl))
1526 			goto err;
1527 
1528 		if (crlnumberfile != NULL)	/* Rename the crlnumber file */
1529 			if (!rotate_serial(crlnumberfile, "new", "old"))
1530 				goto err;
1531 
1532 	}
1533 	/*****************************************************************/
1534 	if (ca_config.dorevoke) {
1535 		if (ca_config.infile == NULL) {
1536 			BIO_printf(bio_err, "no input files\n");
1537 			goto err;
1538 		} else {
1539 			X509 *revcert;
1540 			revcert = load_cert(bio_err, ca_config.infile,
1541 			    FORMAT_PEM, NULL, ca_config.infile);
1542 			if (revcert == NULL)
1543 				goto err;
1544 			j = do_revoke(revcert, db, ca_config.rev_type,
1545 			    ca_config.rev_arg);
1546 			if (j <= 0)
1547 				goto err;
1548 			X509_free(revcert);
1549 
1550 			if (!save_index(dbfile, "new", db))
1551 				goto err;
1552 
1553 			if (!rotate_index(dbfile, "new", "old"))
1554 				goto err;
1555 
1556 			BIO_printf(bio_err, "Data Base Updated\n");
1557 		}
1558 	}
1559 	/*****************************************************************/
1560 	ret = 0;
1561 
1562  err:
1563 	free(tofree);
1564 
1565 	BIO_free_all(Cout);
1566 	BIO_free_all(Sout);
1567 	BIO_free_all(out);
1568 	BIO_free_all(in);
1569 
1570 	sk_X509_pop_free(cert_sk, X509_free);
1571 
1572 	if (ret)
1573 		ERR_print_errors(bio_err);
1574 	if (free_key)
1575 		free(ca_config.key);
1576 	BN_free(serial);
1577 	BN_free(crlnumber);
1578 	free_index(db);
1579 	sk_OPENSSL_STRING_free(ca_config.sigopts);
1580 	EVP_PKEY_free(pkey);
1581 	X509_free(x509);
1582 	X509_CRL_free(crl);
1583 	X509_REVOKED_free(r);
1584 	ASN1_TIME_free(tmptm);
1585 	NCONF_free(conf);
1586 	NCONF_free(extconf);
1587 	OBJ_cleanup();
1588 
1589 	return (ret);
1590 }
1591 
1592 static void
lookup_fail(const char * name,const char * tag)1593 lookup_fail(const char *name, const char *tag)
1594 {
1595 	BIO_printf(bio_err, "variable lookup failed for %s::%s\n", name, tag);
1596 }
1597 
1598 static int
certify(X509 ** xret,char * infile,EVP_PKEY * pkey,X509 * x509,const EVP_MD * dgst,STACK_OF (OPENSSL_STRING)* sigopts,STACK_OF (CONF_VALUE)* policy,CA_DB * db,BIGNUM * serial,char * subj,unsigned long chtype,int multirdn,int email_dn,char * startdate,char * enddate,long days,int batch,char * ext_sect,CONF * lconf,int verbose,unsigned long certopt,unsigned long nameopt,int default_op,int ext_copy,int selfsign)1599 certify(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509,
1600     const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
1601     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
1602     unsigned long chtype, int multirdn, int email_dn, char *startdate,
1603     char *enddate, long days, int batch, char *ext_sect, CONF *lconf,
1604     int verbose, unsigned long certopt, unsigned long nameopt, int default_op,
1605     int ext_copy, int selfsign)
1606 {
1607 	X509_REQ *req = NULL;
1608 	BIO *in = NULL;
1609 	EVP_PKEY *pktmp = NULL;
1610 	int ok = -1, i;
1611 
1612 	in = BIO_new(BIO_s_file());
1613 
1614 	if (BIO_read_filename(in, infile) <= 0) {
1615 		perror(infile);
1616 		goto err;
1617 	}
1618 	if ((req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL)) == NULL) {
1619 		BIO_printf(bio_err, "Error reading certificate request in %s\n",
1620 		    infile);
1621 		goto err;
1622 	}
1623 	if (verbose) {
1624 		if (!X509_REQ_print(bio_err, req))
1625 			goto err;
1626 	}
1627 
1628 	BIO_printf(bio_err, "Check that the request matches the signature\n");
1629 
1630 	if (selfsign && !X509_REQ_check_private_key(req, pkey)) {
1631 		BIO_printf(bio_err,
1632 		    "Certificate request and CA private key do not match\n");
1633 		ok = 0;
1634 		goto err;
1635 	}
1636 	if ((pktmp = X509_REQ_get_pubkey(req)) == NULL) {
1637 		BIO_printf(bio_err, "error unpacking public key\n");
1638 		goto err;
1639 	}
1640 	i = X509_REQ_verify(req, pktmp);
1641 	EVP_PKEY_free(pktmp);
1642 	if (i < 0) {
1643 		ok = 0;
1644 		BIO_printf(bio_err, "Signature verification problems....\n");
1645 		goto err;
1646 	}
1647 	if (i == 0) {
1648 		ok = 0;
1649 		BIO_printf(bio_err,
1650 		    "Signature did not match the certificate request\n");
1651 		goto err;
1652 	} else
1653 		BIO_printf(bio_err, "Signature ok\n");
1654 
1655 	ok = do_body(xret, pkey, x509, dgst, sigopts, policy, db, serial,
1656 	    subj, chtype, multirdn, email_dn, startdate, enddate, days, batch,
1657 	    verbose, req, ext_sect, lconf, certopt, nameopt, default_op,
1658 	    ext_copy, selfsign);
1659 
1660  err:
1661 	X509_REQ_free(req);
1662 	BIO_free(in);
1663 
1664 	return (ok);
1665 }
1666 
1667 static int
certify_cert(X509 ** xret,char * infile,EVP_PKEY * pkey,X509 * x509,const EVP_MD * dgst,STACK_OF (OPENSSL_STRING)* sigopts,STACK_OF (CONF_VALUE)* policy,CA_DB * db,BIGNUM * serial,char * subj,unsigned long chtype,int multirdn,int email_dn,char * startdate,char * enddate,long days,int batch,char * ext_sect,CONF * lconf,int verbose,unsigned long certopt,unsigned long nameopt,int default_op,int ext_copy)1668 certify_cert(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509,
1669     const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
1670     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
1671     unsigned long chtype, int multirdn, int email_dn, char *startdate,
1672     char *enddate, long days, int batch, char *ext_sect, CONF *lconf,
1673     int verbose, unsigned long certopt, unsigned long nameopt, int default_op,
1674     int ext_copy)
1675 {
1676 	X509 *req = NULL;
1677 	X509_REQ *rreq = NULL;
1678 	EVP_PKEY *pktmp = NULL;
1679 	int ok = -1, i;
1680 
1681 	if ((req = load_cert(bio_err, infile, FORMAT_PEM, NULL,
1682 	    infile)) == NULL)
1683 		goto err;
1684 	if (verbose) {
1685 		if (!X509_print(bio_err, req))
1686 			goto err;
1687 	}
1688 
1689 	BIO_printf(bio_err, "Check that the request matches the signature\n");
1690 
1691 	if ((pktmp = X509_get_pubkey(req)) == NULL) {
1692 		BIO_printf(bio_err, "error unpacking public key\n");
1693 		goto err;
1694 	}
1695 	i = X509_verify(req, pktmp);
1696 	EVP_PKEY_free(pktmp);
1697 	if (i < 0) {
1698 		ok = 0;
1699 		BIO_printf(bio_err, "Signature verification problems....\n");
1700 		goto err;
1701 	}
1702 	if (i == 0) {
1703 		ok = 0;
1704 		BIO_printf(bio_err,
1705 		    "Signature did not match the certificate\n");
1706 		goto err;
1707 	} else
1708 		BIO_printf(bio_err, "Signature ok\n");
1709 
1710 	if ((rreq = X509_to_X509_REQ(req, NULL, EVP_md5())) == NULL)
1711 		goto err;
1712 
1713 	ok = do_body(xret, pkey, x509, dgst, sigopts, policy, db, serial,
1714 	    subj, chtype, multirdn, email_dn, startdate, enddate, days, batch,
1715 	    verbose, rreq, ext_sect, lconf, certopt, nameopt, default_op,
1716 	    ext_copy, 0);
1717 
1718  err:
1719 	X509_REQ_free(rreq);
1720 	X509_free(req);
1721 
1722 	return (ok);
1723 }
1724 
1725 static int
do_body(X509 ** xret,EVP_PKEY * pkey,X509 * x509,const EVP_MD * dgst,STACK_OF (OPENSSL_STRING)* sigopts,STACK_OF (CONF_VALUE)* policy,CA_DB * db,BIGNUM * serial,char * subj,unsigned long chtype,int multirdn,int email_dn,char * startdate,char * enddate,long days,int batch,int verbose,X509_REQ * req,char * ext_sect,CONF * lconf,unsigned long certopt,unsigned long nameopt,int default_op,int ext_copy,int selfsign)1726 do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, const EVP_MD *dgst,
1727     STACK_OF(OPENSSL_STRING) *sigopts, STACK_OF(CONF_VALUE) *policy,
1728     CA_DB *db, BIGNUM *serial, char *subj, unsigned long chtype, int multirdn,
1729     int email_dn, char *startdate, char *enddate, long days, int batch,
1730     int verbose, X509_REQ *req, char *ext_sect, CONF *lconf,
1731     unsigned long certopt, unsigned long nameopt, int default_op,
1732     int ext_copy, int selfsign)
1733 {
1734 	X509_NAME *name = NULL, *CAname = NULL;
1735 	X509_NAME *subject = NULL, *dn_subject = NULL;
1736 	ASN1_UTCTIME *tm;
1737 	ASN1_STRING *str, *str2;
1738 	ASN1_OBJECT *obj;
1739 	X509 *ret = NULL;
1740 	X509_NAME_ENTRY *ne;
1741 	X509_NAME_ENTRY *tne, *push;
1742 	EVP_PKEY *pktmp;
1743 	int ok = -1, i, j, last, nid;
1744 	const char *p;
1745 	CONF_VALUE *cv;
1746 	OPENSSL_STRING row[DB_NUMBER];
1747 	OPENSSL_STRING *irow = NULL;
1748 	OPENSSL_STRING *rrow = NULL;
1749 	const STACK_OF(X509_EXTENSION) *exts;
1750 
1751 	*xret = NULL;
1752 
1753 	for (i = 0; i < DB_NUMBER; i++)
1754 		row[i] = NULL;
1755 
1756 	if (subj != NULL) {
1757 		X509_NAME *n = parse_name(subj, chtype, multirdn);
1758 
1759 		if (n == NULL) {
1760 			ERR_print_errors(bio_err);
1761 			goto err;
1762 		}
1763 		if (!X509_REQ_set_subject_name(req, n)) {
1764 			X509_NAME_free(n);
1765 			goto err;
1766 		}
1767 		req->req_info->enc.modified = 1;
1768 		X509_NAME_free(n);
1769 	}
1770 	if (default_op)
1771 		BIO_printf(bio_err,
1772 		    "The Subject's Distinguished Name is as follows\n");
1773 
1774 	name = X509_REQ_get_subject_name(req);
1775 	for (i = 0; i < X509_NAME_entry_count(name); i++) {
1776 		ne = X509_NAME_get_entry(name, i);
1777 		if (ne == NULL)
1778 			goto err;
1779 		str = X509_NAME_ENTRY_get_data(ne);
1780 		if (str == NULL)
1781 			goto err;
1782 		obj = X509_NAME_ENTRY_get_object(ne);
1783 		if (obj == NULL)
1784 			goto err;
1785 
1786 		if (ca_config.msie_hack) {
1787 			/* assume all type should be strings */
1788 			nid = OBJ_obj2nid(ne->object);
1789 			if (nid == NID_undef)
1790 				goto err;
1791 
1792 			if (str->type == V_ASN1_UNIVERSALSTRING)
1793 				ASN1_UNIVERSALSTRING_to_string(str);
1794 
1795 			if ((str->type == V_ASN1_IA5STRING) &&
1796 			    (nid != NID_pkcs9_emailAddress))
1797 				str->type = V_ASN1_T61STRING;
1798 
1799 			if ((nid == NID_pkcs9_emailAddress) &&
1800 			    (str->type == V_ASN1_PRINTABLESTRING))
1801 				str->type = V_ASN1_IA5STRING;
1802 		}
1803 		/* If no EMAIL is wanted in the subject */
1804 		if ((OBJ_obj2nid(obj) == NID_pkcs9_emailAddress) && (!email_dn))
1805 			continue;
1806 
1807 		/* check some things */
1808 		if ((OBJ_obj2nid(obj) == NID_pkcs9_emailAddress) &&
1809 		    (str->type != V_ASN1_IA5STRING)) {
1810 			BIO_printf(bio_err,
1811 			    "\nemailAddress type needs to be of type IA5STRING\n");
1812 			goto err;
1813 		}
1814 		if ((str->type != V_ASN1_BMPSTRING) &&
1815 		    (str->type != V_ASN1_UTF8STRING)) {
1816 			j = ASN1_PRINTABLE_type(str->data, str->length);
1817 			if (((j == V_ASN1_T61STRING) &&
1818 			    (str->type != V_ASN1_T61STRING)) ||
1819 			    ((j == V_ASN1_IA5STRING) &&
1820 			    (str->type == V_ASN1_PRINTABLESTRING))) {
1821 				BIO_printf(bio_err,
1822 				    "\nThe string contains characters that are illegal for the ASN.1 type\n");
1823 				goto err;
1824 			}
1825 		}
1826 		if (default_op)
1827 			old_entry_print(bio_err, obj, str);
1828 	}
1829 
1830 	/* Ok, now we check the 'policy' stuff. */
1831 	if ((subject = X509_NAME_new()) == NULL) {
1832 		BIO_printf(bio_err, "Memory allocation failure\n");
1833 		goto err;
1834 	}
1835 	/* take a copy of the issuer name before we mess with it. */
1836 	if (selfsign)
1837 		CAname = X509_NAME_dup(name);
1838 	else
1839 		CAname = X509_NAME_dup(X509_get_subject_name(x509));
1840 	if (CAname == NULL)
1841 		goto err;
1842 	str = str2 = NULL;
1843 
1844 	for (i = 0; i < sk_CONF_VALUE_num(policy); i++) {
1845 		cv = sk_CONF_VALUE_value(policy, i);	/* get the object id */
1846 		if ((j = OBJ_txt2nid(cv->name)) == NID_undef) {
1847 			BIO_printf(bio_err,
1848 			    "%s:unknown object type in 'policy' configuration\n",
1849 			    cv->name);
1850 			goto err;
1851 		}
1852 		obj = OBJ_nid2obj(j);
1853 		if (obj == NULL)
1854 			goto err;
1855 
1856 		last = -1;
1857 		for (;;) {
1858 			/* lookup the object in the supplied name list */
1859 			j = X509_NAME_get_index_by_OBJ(name, obj, last);
1860 			if (j < 0) {
1861 				if (last != -1)
1862 					break;
1863 				tne = NULL;
1864 			} else {
1865 				tne = X509_NAME_get_entry(name, j);
1866 				if (tne == NULL)
1867 					goto err;
1868 			}
1869 			last = j;
1870 
1871 			/* depending on the 'policy', decide what to do. */
1872 			push = NULL;
1873 			if (strcmp(cv->value, "optional") == 0) {
1874 				if (tne != NULL)
1875 					push = tne;
1876 			} else if (strcmp(cv->value, "supplied") == 0) {
1877 				if (tne == NULL) {
1878 					BIO_printf(bio_err,
1879 					    "The %s field needed to be supplied and was missing\n",
1880 					    cv->name);
1881 					goto err;
1882 				} else
1883 					push = tne;
1884 			} else if (strcmp(cv->value, "match") == 0) {
1885 				int last2;
1886 
1887 				if (tne == NULL) {
1888 					BIO_printf(bio_err,
1889 					    "The mandatory %s field was missing\n",
1890 					    cv->name);
1891 					goto err;
1892 				}
1893 				last2 = -1;
1894 
1895  again2:
1896 				j = X509_NAME_get_index_by_OBJ(CAname, obj,
1897 				    last2);
1898 				if ((j < 0) && (last2 == -1)) {
1899 					BIO_printf(bio_err,
1900 					    "The %s field does not exist in the CA certificate,\nthe 'policy' is misconfigured\n",
1901 					    cv->name);
1902 					goto err;
1903 				}
1904 				if (j >= 0) {
1905 					push = X509_NAME_get_entry(CAname, j);
1906 					if (push == NULL)
1907 						goto err;
1908 					str = X509_NAME_ENTRY_get_data(tne);
1909 					if (str == NULL)
1910 						goto err;
1911 					str2 = X509_NAME_ENTRY_get_data(push);
1912 					if (str2 == NULL)
1913 						goto err;
1914 					last2 = j;
1915 					if (ASN1_STRING_cmp(str, str2) != 0)
1916 						goto again2;
1917 				}
1918 				if (j < 0) {
1919 					BIO_printf(bio_err,
1920 					    "The %s field needed to be the same in the\nCA certificate (%s) and the request (%s)\n",
1921 					    cv->name, ((str2 == NULL) ?
1922 					    "NULL" : (char *) str2->data),
1923 					    ((str == NULL) ?
1924 					    "NULL" : (char *) str->data));
1925 					goto err;
1926 				}
1927 			} else {
1928 				BIO_printf(bio_err,
1929 				    "%s:invalid type in 'policy' configuration\n",
1930 				    cv->value);
1931 				goto err;
1932 			}
1933 
1934 			if (push != NULL) {
1935 				if (!X509_NAME_add_entry(subject, push,
1936 				    -1, 0)) {
1937 					X509_NAME_ENTRY_free(push);
1938 					BIO_printf(bio_err,
1939 					    "Memory allocation failure\n");
1940 					goto err;
1941 				}
1942 			}
1943 			if (j < 0)
1944 				break;
1945 		}
1946 	}
1947 
1948 	if (ca_config.preserve) {
1949 		X509_NAME_free(subject);
1950 		/* subject=X509_NAME_dup(X509_REQ_get_subject_name(req)); */
1951 		subject = X509_NAME_dup(name);
1952 		if (subject == NULL)
1953 			goto err;
1954 	}
1955 
1956 	/* We are now totally happy, lets make and sign the certificate */
1957 	if (verbose)
1958 		BIO_printf(bio_err,
1959 		    "Everything appears to be ok, creating and signing the certificate\n");
1960 
1961 	if ((ret = X509_new()) == NULL)
1962 		goto err;
1963 
1964 #ifdef X509_V3
1965 	/* Make it an X509 v3 certificate. */
1966 	if (!X509_set_version(ret, 2))
1967 		goto err;
1968 #endif
1969 	if (X509_get_serialNumber(ret) == NULL)
1970 		goto err;
1971 	if (BN_to_ASN1_INTEGER(serial, X509_get_serialNumber(ret)) == NULL)
1972 		goto err;
1973 	if (selfsign) {
1974 		if (!X509_set_issuer_name(ret, subject))
1975 			goto err;
1976 	} else {
1977 		if (!X509_set_issuer_name(ret, X509_get_subject_name(x509)))
1978 			goto err;
1979 	}
1980 
1981 	if (strcmp(startdate, "today") == 0) {
1982 		if (X509_gmtime_adj(X509_get_notBefore(ret), 0) == NULL)
1983 			goto err;
1984 	} else if (setCertificateTime(X509_get_notBefore(ret), startdate) == -1) {
1985 		BIO_printf(bio_err, "Invalid start date %s\n", startdate);
1986 		goto err;
1987 	}
1988 
1989 	if (enddate == NULL) {
1990 		if (X509_time_adj_ex(X509_get_notAfter(ret), days, 0,
1991 		    NULL) == NULL)
1992 			goto err;
1993 	} else if (setCertificateTime(X509_get_notAfter(ret), enddate) == -1) {
1994 		BIO_printf(bio_err, "Invalid end date %s\n", enddate);
1995 		goto err;
1996 	}
1997 
1998 	if (!X509_set_subject_name(ret, subject))
1999 		goto err;
2000 
2001 	pktmp = X509_REQ_get_pubkey(req);
2002 	if (pktmp == NULL)
2003 		goto err;
2004 
2005 	i = X509_set_pubkey(ret, pktmp);
2006 	EVP_PKEY_free(pktmp);
2007 	if (!i)
2008 		goto err;
2009 
2010 	/* Lets add the extensions, if there are any */
2011 	if (ext_sect != NULL) {
2012 		X509V3_CTX ctx;
2013 
2014 		/* Initialize the context structure */
2015 		if (selfsign)
2016 			X509V3_set_ctx(&ctx, ret, ret, req, NULL, 0);
2017 		else
2018 			X509V3_set_ctx(&ctx, x509, ret, req, NULL, 0);
2019 
2020 		if (extconf != NULL) {
2021 			if (verbose)
2022 				BIO_printf(bio_err,
2023 				    "Extra configuration file found\n");
2024 
2025 			/* Use the extconf configuration db LHASH */
2026 			X509V3_set_nconf(&ctx, extconf);
2027 
2028 			/* Test the structure (needed?) */
2029 			/* X509V3_set_ctx_test(&ctx); */
2030 
2031 			/* Adds exts contained in the configuration file */
2032 			if (!X509V3_EXT_add_nconf(extconf, &ctx,
2033 			    ext_sect, ret)) {
2034 				BIO_printf(bio_err,
2035 				    "ERROR: adding extensions in section %s\n",
2036 				    ext_sect);
2037 				ERR_print_errors(bio_err);
2038 				goto err;
2039 			}
2040 			if (verbose)
2041 				BIO_printf(bio_err,
2042 				    "Successfully added extensions from file.\n");
2043 		} else if (ext_sect != NULL) {
2044 			/* We found extensions to be set from config file */
2045 			X509V3_set_nconf(&ctx, lconf);
2046 
2047 			if (!X509V3_EXT_add_nconf(lconf, &ctx, ext_sect, ret)) {
2048 				BIO_printf(bio_err,
2049 				    "ERROR: adding extensions in section %s\n",
2050 				    ext_sect);
2051 				ERR_print_errors(bio_err);
2052 				goto err;
2053 			}
2054 			if (verbose)
2055 				BIO_printf(bio_err,
2056 				    "Successfully added extensions from config\n");
2057 		}
2058 	}
2059 
2060 	/* Copy extensions from request (if any) */
2061 	if (!copy_extensions(ret, req, ext_copy)) {
2062 		BIO_printf(bio_err, "ERROR: adding extensions from request\n");
2063 		ERR_print_errors(bio_err);
2064 		goto err;
2065 	}
2066 
2067 	exts = X509_get0_extensions(ret);
2068 	if (exts != NULL && sk_X509_EXTENSION_num(exts) > 0) {
2069 		/* Make it an X509 v3 certificate. */
2070 		if (!X509_set_version(ret, 2))
2071 			goto err;
2072 	}
2073 
2074 	if (verbose)
2075 		BIO_printf(bio_err,
2076 		    "The subject name appears to be ok, checking data base for clashes\n");
2077 
2078 	/* Build the correct Subject if no email is wanted in the subject */
2079 	if (!email_dn) {
2080 		X509_NAME_ENTRY *tmpne;
2081 		/*
2082 		 * Its best to dup the subject DN and then delete any email
2083 		 * addresses because this retains its structure.
2084 		 */
2085 		if ((dn_subject = X509_NAME_dup(subject)) == NULL) {
2086 			BIO_printf(bio_err, "Memory allocation failure\n");
2087 			goto err;
2088 		}
2089 		while ((i = X509_NAME_get_index_by_NID(dn_subject,
2090 		    NID_pkcs9_emailAddress, -1)) >= 0) {
2091 			tmpne = X509_NAME_get_entry(dn_subject, i);
2092 			if (tmpne == NULL)
2093 				goto err;
2094 			if (X509_NAME_delete_entry(dn_subject, i) == NULL) {
2095 				X509_NAME_ENTRY_free(tmpne);
2096 				goto err;
2097 			}
2098 			X509_NAME_ENTRY_free(tmpne);
2099 		}
2100 
2101 		if (!X509_set_subject_name(ret, dn_subject))
2102 			goto err;
2103 
2104 		X509_NAME_free(dn_subject);
2105 		dn_subject = NULL;
2106 	}
2107 
2108 	row[DB_name] = X509_NAME_oneline(X509_get_subject_name(ret), NULL, 0);
2109 	if (row[DB_name] == NULL) {
2110 		BIO_printf(bio_err, "Memory allocation failure\n");
2111 		goto err;
2112 	}
2113 
2114 	if (BN_is_zero(serial))
2115 		row[DB_serial] = strdup("00");
2116 	else
2117 		row[DB_serial] = BN_bn2hex(serial);
2118 	if (row[DB_serial] == NULL) {
2119 		BIO_printf(bio_err, "Memory allocation failure\n");
2120 		goto err;
2121 	}
2122 
2123 	if (row[DB_name][0] == '\0') {
2124 		/*
2125 		 * An empty subject! We'll use the serial number instead. If
2126 		 * unique_subject is in use then we don't want different
2127 		 * entries with empty subjects matching each other.
2128 		 */
2129 		free(row[DB_name]);
2130 		row[DB_name] = strdup(row[DB_serial]);
2131 		if (row[DB_name] == NULL) {
2132 			BIO_printf(bio_err, "Memory allocation failure\n");
2133 			goto err;
2134 		}
2135 	}
2136 
2137 	if (db->attributes.unique_subject) {
2138 		OPENSSL_STRING *crow = row;
2139 
2140 		rrow = TXT_DB_get_by_index(db->db, DB_name, crow);
2141 		if (rrow != NULL) {
2142 			BIO_printf(bio_err,
2143 			    "ERROR:There is already a certificate for %s\n",
2144 			    row[DB_name]);
2145 		}
2146 	}
2147 	if (rrow == NULL) {
2148 		rrow = TXT_DB_get_by_index(db->db, DB_serial, row);
2149 		if (rrow != NULL) {
2150 			BIO_printf(bio_err,
2151 			    "ERROR:Serial number %s has already been issued,\n",
2152 			    row[DB_serial]);
2153 			BIO_printf(bio_err,
2154 			    "      check the database/serial_file for corruption\n");
2155 		}
2156 	}
2157 	if (rrow != NULL) {
2158 		BIO_printf(bio_err,
2159 		    "The matching entry has the following details\n");
2160 		if (rrow[DB_type][0] == DB_TYPE_EXP)
2161 			p = "Expired";
2162 		else if (rrow[DB_type][0] == DB_TYPE_REV)
2163 			p = "Revoked";
2164 		else if (rrow[DB_type][0] == DB_TYPE_VAL)
2165 			p = "Valid";
2166 		else
2167 			p = "\ninvalid type, Data base error\n";
2168 		BIO_printf(bio_err, "Type	  :%s\n", p);
2169 		if (rrow[DB_type][0] == DB_TYPE_REV) {
2170 			p = rrow[DB_exp_date];
2171 			if (p == NULL)
2172 				p = "undef";
2173 			BIO_printf(bio_err, "Was revoked on:%s\n", p);
2174 		}
2175 		p = rrow[DB_exp_date];
2176 		if (p == NULL)
2177 			p = "undef";
2178 		BIO_printf(bio_err, "Expires on    :%s\n", p);
2179 		p = rrow[DB_serial];
2180 		if (p == NULL)
2181 			p = "undef";
2182 		BIO_printf(bio_err, "Serial Number :%s\n", p);
2183 		p = rrow[DB_file];
2184 		if (p == NULL)
2185 			p = "undef";
2186 		BIO_printf(bio_err, "File name     :%s\n", p);
2187 		p = rrow[DB_name];
2188 		if (p == NULL)
2189 			p = "undef";
2190 		BIO_printf(bio_err, "Subject Name  :%s\n", p);
2191 		ok = -1;	/* This is now a 'bad' error. */
2192 		goto err;
2193 	}
2194 
2195 	if (!default_op) {
2196 		BIO_printf(bio_err, "Certificate Details:\n");
2197 		/*
2198 		 * Never print signature details because signature not
2199 		 * present
2200 		 */
2201 		certopt |= X509_FLAG_NO_SIGDUMP | X509_FLAG_NO_SIGNAME;
2202 		if (!X509_print_ex(bio_err, ret, nameopt, certopt))
2203 			goto err;
2204 	}
2205 	BIO_printf(bio_err, "Certificate is to be certified until ");
2206 	ASN1_TIME_print(bio_err, X509_get_notAfter(ret));
2207 	if (days)
2208 		BIO_printf(bio_err, " (%ld days)", days);
2209 	BIO_printf(bio_err, "\n");
2210 
2211 	if (!batch) {
2212 		char answer[25];
2213 
2214 		BIO_printf(bio_err, "Sign the certificate? [y/n]:");
2215 		(void) BIO_flush(bio_err);
2216 		if (!fgets(answer, sizeof(answer) - 1, stdin)) {
2217 			BIO_printf(bio_err,
2218 			    "CERTIFICATE WILL NOT BE CERTIFIED: I/O error\n");
2219 			ok = 0;
2220 			goto err;
2221 		}
2222 		if (!((answer[0] == 'y') || (answer[0] == 'Y'))) {
2223 			BIO_printf(bio_err,
2224 			    "CERTIFICATE WILL NOT BE CERTIFIED\n");
2225 			ok = 0;
2226 			goto err;
2227 		}
2228 	}
2229 
2230 	pktmp = X509_get_pubkey(ret);
2231 	if (pktmp == NULL)
2232 		goto err;
2233 
2234 	if (EVP_PKEY_missing_parameters(pktmp) &&
2235 	    !EVP_PKEY_missing_parameters(pkey)) {
2236 		if (!EVP_PKEY_copy_parameters(pktmp, pkey)) {
2237 			EVP_PKEY_free(pktmp);
2238 			goto err;
2239 		}
2240 	}
2241 	EVP_PKEY_free(pktmp);
2242 
2243 	if (!do_X509_sign(bio_err, ret, pkey, dgst, sigopts))
2244 		goto err;
2245 
2246 	/* We now just add it to the database */
2247 	row[DB_type] = malloc(2);
2248 
2249 	if ((tm = X509_get_notAfter(ret)) == NULL)
2250 		goto err;
2251 	row[DB_exp_date] = strndup(tm->data, tm->length);
2252 	if (row[DB_type] == NULL || row[DB_exp_date] == NULL) {
2253 		BIO_printf(bio_err, "Memory allocation failure\n");
2254 		goto err;
2255 	}
2256 
2257 	row[DB_rev_date] = NULL;
2258 
2259 	/* row[DB_serial] done already */
2260 	row[DB_file] = malloc(8);
2261 
2262 	if ((row[DB_type] == NULL) || (row[DB_file] == NULL) ||
2263 	    (row[DB_name] == NULL)) {
2264 		BIO_printf(bio_err, "Memory allocation failure\n");
2265 		goto err;
2266 	}
2267 	(void) strlcpy(row[DB_file], "unknown", 8);
2268 	row[DB_type][0] = DB_TYPE_VAL;
2269 	row[DB_type][1] = '\0';
2270 
2271 	if ((irow = reallocarray(NULL, DB_NUMBER + 1, sizeof(char *))) ==
2272 	    NULL) {
2273 		BIO_printf(bio_err, "Memory allocation failure\n");
2274 		goto err;
2275 	}
2276 	for (i = 0; i < DB_NUMBER; i++) {
2277 		irow[i] = row[i];
2278 		row[i] = NULL;
2279 	}
2280 	irow[DB_NUMBER] = NULL;
2281 
2282 	if (!TXT_DB_insert(db->db, irow)) {
2283 		BIO_printf(bio_err, "failed to update database\n");
2284 		BIO_printf(bio_err, "TXT_DB error number %ld\n", db->db->error);
2285 		goto err;
2286 	}
2287 
2288 	*xret = ret;
2289 	ret = NULL;
2290 	ok = 1;
2291 
2292  err:
2293 	for (i = 0; i < DB_NUMBER; i++)
2294 		free(row[i]);
2295 
2296 	X509_NAME_free(CAname);
2297 	X509_NAME_free(subject);
2298 	X509_NAME_free(dn_subject);
2299 	X509_free(ret);
2300 
2301 	return (ok);
2302 }
2303 
2304 static int
write_new_certificate(BIO * bp,X509 * x,int output_der,int notext)2305 write_new_certificate(BIO *bp, X509 *x, int output_der, int notext)
2306 {
2307 	if (output_der) {
2308 		if (!i2d_X509_bio(bp, x))
2309 			return (0);
2310 	}
2311 	if (!notext) {
2312 		if (!X509_print(bp, x))
2313 			return (0);
2314 	}
2315 
2316 	return PEM_write_bio_X509(bp, x);
2317 }
2318 
2319 static int
certify_spkac(X509 ** xret,char * infile,EVP_PKEY * pkey,X509 * x509,const EVP_MD * dgst,STACK_OF (OPENSSL_STRING)* sigopts,STACK_OF (CONF_VALUE)* policy,CA_DB * db,BIGNUM * serial,char * subj,unsigned long chtype,int multirdn,int email_dn,char * startdate,char * enddate,long days,char * ext_sect,CONF * lconf,int verbose,unsigned long certopt,unsigned long nameopt,int default_op,int ext_copy)2320 certify_spkac(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509,
2321     const EVP_MD *dgst, STACK_OF(OPENSSL_STRING) *sigopts,
2322     STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj,
2323     unsigned long chtype, int multirdn, int email_dn, char *startdate,
2324     char *enddate, long days, char *ext_sect, CONF *lconf, int verbose,
2325     unsigned long certopt, unsigned long nameopt, int default_op, int ext_copy)
2326 {
2327 	STACK_OF(CONF_VALUE) *sk = NULL;
2328 	LHASH_OF(CONF_VALUE) *parms = NULL;
2329 	X509_REQ *req = NULL;
2330 	CONF_VALUE *cv = NULL;
2331 	NETSCAPE_SPKI *spki = NULL;
2332 	X509_REQ_INFO *ri;
2333 	char *type, *buf;
2334 	EVP_PKEY *pktmp = NULL;
2335 	X509_NAME *n = NULL;
2336 	int ok = -1, i, j;
2337 	long errline;
2338 	int nid;
2339 
2340 	/*
2341 	 * Load input file into a hash table.  (This is just an easy
2342 	 * way to read and parse the file, then put it into a convenient
2343 	 * STACK format).
2344 	 */
2345 	parms = CONF_load(NULL, infile, &errline);
2346 	if (parms == NULL) {
2347 		BIO_printf(bio_err, "error on line %ld of %s\n",
2348 		    errline, infile);
2349 		ERR_print_errors(bio_err);
2350 		goto err;
2351 	}
2352 	sk = CONF_get_section(parms, "default");
2353 	if (sk_CONF_VALUE_num(sk) == 0) {
2354 		BIO_printf(bio_err, "no name/value pairs found in %s\n",
2355 		    infile);
2356 		CONF_free(parms);
2357 		goto err;
2358 	}
2359 	/*
2360 	 * Now create a dummy X509 request structure.  We don't actually
2361 	 * have an X509 request, but we have many of the components
2362 	 * (a public key, various DN components).  The idea is that we
2363 	 * put these components into the right X509 request structure
2364 	 * and we can use the same code as if you had a real X509 request.
2365 	 */
2366 	req = X509_REQ_new();
2367 	if (req == NULL) {
2368 		ERR_print_errors(bio_err);
2369 		goto err;
2370 	}
2371 	/*
2372 	 * Build up the subject name set.
2373 	 */
2374 	ri = req->req_info;
2375 	n = ri->subject;
2376 
2377 	for (i = 0;; i++) {
2378 		if (sk_CONF_VALUE_num(sk) <= i)
2379 			break;
2380 
2381 		cv = sk_CONF_VALUE_value(sk, i);
2382 		type = cv->name;
2383 		/*
2384 		 * Skip past any leading X. X: X, etc to allow for multiple
2385 		 * instances
2386 		 */
2387 		for (buf = cv->name; *buf; buf++) {
2388 			if ((*buf == ':') || (*buf == ',') || (*buf == '.')) {
2389 				buf++;
2390 				if (*buf)
2391 					type = buf;
2392 				break;
2393 			}
2394 		}
2395 
2396 		buf = cv->value;
2397 		if ((nid = OBJ_txt2nid(type)) == NID_undef) {
2398 			if (strcmp(type, "SPKAC") == 0) {
2399 				spki = NETSCAPE_SPKI_b64_decode(cv->value, -1);
2400 				if (spki == NULL) {
2401 					BIO_printf(bio_err,
2402 					    "unable to load Netscape SPKAC structure\n");
2403 					ERR_print_errors(bio_err);
2404 					goto err;
2405 				}
2406 			}
2407 			continue;
2408 		}
2409 		if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
2410 		    (unsigned char *)buf, -1, -1, 0))
2411 			goto err;
2412 	}
2413 	if (spki == NULL) {
2414 		BIO_printf(bio_err,
2415 		    "Netscape SPKAC structure not found in %s\n", infile);
2416 		goto err;
2417 	}
2418 	/*
2419 	 * Now extract the key from the SPKI structure.
2420 	 */
2421 
2422 	BIO_printf(bio_err,
2423 	    "Check that the SPKAC request matches the signature\n");
2424 
2425 	if ((pktmp = NETSCAPE_SPKI_get_pubkey(spki)) == NULL) {
2426 		BIO_printf(bio_err, "error unpacking SPKAC public key\n");
2427 		goto err;
2428 	}
2429 	j = NETSCAPE_SPKI_verify(spki, pktmp);
2430 	if (j <= 0) {
2431 		BIO_printf(bio_err,
2432 		    "signature verification failed on SPKAC public key\n");
2433 		goto err;
2434 	}
2435 	BIO_printf(bio_err, "Signature ok\n");
2436 
2437 	if (!X509_REQ_set_pubkey(req, pktmp)) {
2438 		EVP_PKEY_free(pktmp);
2439 		goto err;
2440 	}
2441 	EVP_PKEY_free(pktmp);
2442 	ok = do_body(xret, pkey, x509, dgst, sigopts, policy, db, serial,
2443 	    subj, chtype, multirdn, email_dn, startdate, enddate, days, 1,
2444 	    verbose, req, ext_sect, lconf, certopt, nameopt, default_op,
2445 	    ext_copy, 0);
2446 
2447  err:
2448 	X509_REQ_free(req);
2449 	CONF_free(parms);
2450 	NETSCAPE_SPKI_free(spki);
2451 
2452 	return (ok);
2453 }
2454 
2455 static int
check_time_format(const char * str)2456 check_time_format(const char *str)
2457 {
2458 	return ASN1_TIME_set_string(NULL, str);
2459 }
2460 
2461 static int
do_revoke(X509 * x509,CA_DB * db,int type,char * value)2462 do_revoke(X509 *x509, CA_DB *db, int type, char *value)
2463 {
2464 	ASN1_UTCTIME *tm = NULL;
2465 	char *row[DB_NUMBER], **rrow, **irow;
2466 	char *rev_str = NULL;
2467 	BIGNUM *bn = NULL;
2468 	int ok = -1, i;
2469 
2470 	for (i = 0; i < DB_NUMBER; i++)
2471 		row[i] = NULL;
2472 	row[DB_name] = X509_NAME_oneline(X509_get_subject_name(x509), NULL, 0);
2473 	bn = ASN1_INTEGER_to_BN(X509_get_serialNumber(x509), NULL);
2474 	if (bn == NULL)
2475 		goto err;
2476 	if (BN_is_zero(bn))
2477 		row[DB_serial] = strdup("00");
2478 	else
2479 		row[DB_serial] = BN_bn2hex(bn);
2480 	BN_free(bn);
2481 
2482 	if (row[DB_name] != NULL && row[DB_name][0] == '\0') {
2483 		/*
2484 		 * Entries with empty Subjects actually use the serial number
2485 		 * instead
2486 		 */
2487 		free(row[DB_name]);
2488 		row[DB_name] = strdup(row[DB_serial]);
2489 		if (row[DB_name] == NULL) {
2490 			BIO_printf(bio_err, "Memory allocation failure\n");
2491 			goto err;
2492 		}
2493 	}
2494 
2495 	if ((row[DB_name] == NULL) || (row[DB_serial] == NULL)) {
2496 		BIO_printf(bio_err, "Memory allocation failure\n");
2497 		goto err;
2498 	}
2499 	/*
2500 	 * We have to lookup by serial number because name lookup skips
2501 	 * revoked certs
2502 	 */
2503 	rrow = TXT_DB_get_by_index(db->db, DB_serial, row);
2504 	if (rrow == NULL) {
2505 		BIO_printf(bio_err,
2506 		    "Adding Entry with serial number %s to DB for %s\n",
2507 		    row[DB_serial], row[DB_name]);
2508 
2509 		/* We now just add it to the database */
2510 		row[DB_type] = malloc(2);
2511 
2512 		if ((tm = X509_get_notAfter(x509)) == NULL)
2513 			goto err;
2514 		row[DB_exp_date] = strndup(tm->data, tm->length);
2515 		if (row[DB_type] == NULL || row[DB_exp_date] == NULL) {
2516 			BIO_printf(bio_err, "Memory allocation failure\n");
2517 			goto err;
2518 		}
2519 
2520 		row[DB_rev_date] = NULL;
2521 
2522 		/* row[DB_serial] done already */
2523 		row[DB_file] = malloc(8);
2524 
2525 		/* row[DB_name] done already */
2526 
2527 		if ((row[DB_type] == NULL) || (row[DB_file] == NULL)) {
2528 			BIO_printf(bio_err, "Memory allocation failure\n");
2529 			goto err;
2530 		}
2531 		(void) strlcpy(row[DB_file], "unknown", 8);
2532 		row[DB_type][0] = DB_TYPE_VAL;
2533 		row[DB_type][1] = '\0';
2534 
2535 		if ((irow = reallocarray(NULL, sizeof(char *),
2536 		    (DB_NUMBER + 1))) == NULL) {
2537 			BIO_printf(bio_err, "Memory allocation failure\n");
2538 			goto err;
2539 		}
2540 		for (i = 0; i < DB_NUMBER; i++) {
2541 			irow[i] = row[i];
2542 			row[i] = NULL;
2543 		}
2544 		irow[DB_NUMBER] = NULL;
2545 
2546 		if (!TXT_DB_insert(db->db, irow)) {
2547 			BIO_printf(bio_err, "failed to update database\n");
2548 			BIO_printf(bio_err, "TXT_DB error number %ld\n",
2549 			    db->db->error);
2550 			goto err;
2551 		}
2552 		/* Revoke Certificate */
2553 		ok = do_revoke(x509, db, type, value);
2554 
2555 		goto err;
2556 
2557 	} else if (index_name_cmp_noconst(row, rrow)) {
2558 		BIO_printf(bio_err, "ERROR:name does not match %s\n",
2559 		    row[DB_name]);
2560 		goto err;
2561 	} else if (rrow[DB_type][0] == DB_TYPE_REV) {
2562 		BIO_printf(bio_err, "ERROR:Already revoked, serial number %s\n",
2563 		    row[DB_serial]);
2564 		goto err;
2565 	} else {
2566 		BIO_printf(bio_err, "Revoking Certificate %s.\n",
2567 		    rrow[DB_serial]);
2568 		rev_str = make_revocation_str(type, value);
2569 		if (rev_str == NULL) {
2570 			BIO_printf(bio_err, "Error in revocation arguments\n");
2571 			goto err;
2572 		}
2573 		rrow[DB_type][0] = DB_TYPE_REV;
2574 		rrow[DB_type][1] = '\0';
2575 		rrow[DB_rev_date] = rev_str;
2576 	}
2577 	ok = 1;
2578 
2579  err:
2580 	for (i = 0; i < DB_NUMBER; i++)
2581 		free(row[i]);
2582 
2583 	return (ok);
2584 }
2585 
2586 static int
get_certificate_status(const char * serial,CA_DB * db)2587 get_certificate_status(const char *serial, CA_DB *db)
2588 {
2589 	char *row[DB_NUMBER], **rrow;
2590 	int ok = -1, i;
2591 
2592 	/* Free Resources */
2593 	for (i = 0; i < DB_NUMBER; i++)
2594 		row[i] = NULL;
2595 
2596 	/* Malloc needed char spaces */
2597 	row[DB_serial] = malloc(strlen(serial) + 2);
2598 	if (row[DB_serial] == NULL) {
2599 		BIO_printf(bio_err, "Malloc failure\n");
2600 		goto err;
2601 	}
2602 	if (strlen(serial) % 2) {
2603 		/* Set the first char to 0 */ ;
2604 		row[DB_serial][0] = '0';
2605 
2606 		/* Copy String from serial to row[DB_serial] */
2607 		memcpy(row[DB_serial] + 1, serial, strlen(serial));
2608 		row[DB_serial][strlen(serial) + 1] = '\0';
2609 	} else {
2610 		/* Copy String from serial to row[DB_serial] */
2611 		memcpy(row[DB_serial], serial, strlen(serial));
2612 		row[DB_serial][strlen(serial)] = '\0';
2613 	}
2614 
2615 	/* Make it Upper Case */
2616 	for (i = 0; row[DB_serial][i] != '\0'; i++)
2617 		row[DB_serial][i] = toupper((unsigned char) row[DB_serial][i]);
2618 
2619 
2620 	ok = 1;
2621 
2622 	/* Search for the certificate */
2623 	rrow = TXT_DB_get_by_index(db->db, DB_serial, row);
2624 	if (rrow == NULL) {
2625 		BIO_printf(bio_err, "Serial %s not present in db.\n",
2626 		    row[DB_serial]);
2627 		ok = -1;
2628 		goto err;
2629 	} else if (rrow[DB_type][0] == DB_TYPE_VAL) {
2630 		BIO_printf(bio_err, "%s=Valid (%c)\n",
2631 		    row[DB_serial], rrow[DB_type][0]);
2632 		goto err;
2633 	} else if (rrow[DB_type][0] == DB_TYPE_REV) {
2634 		BIO_printf(bio_err, "%s=Revoked (%c)\n",
2635 		    row[DB_serial], rrow[DB_type][0]);
2636 		goto err;
2637 	} else if (rrow[DB_type][0] == DB_TYPE_EXP) {
2638 		BIO_printf(bio_err, "%s=Expired (%c)\n",
2639 		    row[DB_serial], rrow[DB_type][0]);
2640 		goto err;
2641 	} else if (rrow[DB_type][0] == DB_TYPE_SUSP) {
2642 		BIO_printf(bio_err, "%s=Suspended (%c)\n",
2643 		    row[DB_serial], rrow[DB_type][0]);
2644 		goto err;
2645 	} else {
2646 		BIO_printf(bio_err, "%s=Unknown (%c).\n",
2647 		    row[DB_serial], rrow[DB_type][0]);
2648 		ok = -1;
2649 	}
2650 
2651  err:
2652 	for (i = 0; i < DB_NUMBER; i++)
2653 		free(row[i]);
2654 
2655 	return (ok);
2656 }
2657 
2658 static int
do_updatedb(CA_DB * db)2659 do_updatedb(CA_DB *db)
2660 {
2661 	ASN1_UTCTIME *a_tm = NULL;
2662 	int i, cnt = 0;
2663 	int db_y2k, a_y2k;	/* flags = 1 if y >= 2000 */
2664 	char **rrow, *a_tm_s = NULL;
2665 
2666 	a_tm = ASN1_UTCTIME_new();
2667 	if (a_tm == NULL) {
2668 		cnt = -1;
2669 		goto err;
2670 	}
2671 
2672 	/* get actual time and make a string */
2673 	a_tm = X509_gmtime_adj(a_tm, 0);
2674 	if (a_tm == NULL) {
2675 		cnt = -1;
2676 		goto err;
2677 	}
2678 	a_tm_s = strndup(a_tm->data, a_tm->length);
2679 	if (a_tm_s == NULL) {
2680 		cnt = -1;
2681 		goto err;
2682 	}
2683 
2684 	if (strncmp(a_tm_s, "49", 2) <= 0)
2685 		a_y2k = 1;
2686 	else
2687 		a_y2k = 0;
2688 
2689 	for (i = 0; i < sk_OPENSSL_PSTRING_num(db->db->data); i++) {
2690 		rrow = sk_OPENSSL_PSTRING_value(db->db->data, i);
2691 
2692 		if (rrow[DB_type][0] == DB_TYPE_VAL) {
2693 			/* ignore entries that are not valid */
2694 			if (strncmp(rrow[DB_exp_date], "49", 2) <= 0)
2695 				db_y2k = 1;
2696 			else
2697 				db_y2k = 0;
2698 
2699 			if (db_y2k == a_y2k) {
2700 				/* all on the same y2k side */
2701 				if (strcmp(rrow[DB_exp_date], a_tm_s) <= 0) {
2702 					rrow[DB_type][0] = DB_TYPE_EXP;
2703 					rrow[DB_type][1] = '\0';
2704 					cnt++;
2705 
2706 					BIO_printf(bio_err, "%s=Expired\n",
2707 					    rrow[DB_serial]);
2708 				}
2709 			} else if (db_y2k < a_y2k) {
2710 				rrow[DB_type][0] = DB_TYPE_EXP;
2711 				rrow[DB_type][1] = '\0';
2712 				cnt++;
2713 
2714 				BIO_printf(bio_err, "%s=Expired\n",
2715 				    rrow[DB_serial]);
2716 			}
2717 		}
2718 	}
2719 
2720  err:
2721 	ASN1_UTCTIME_free(a_tm);
2722 	free(a_tm_s);
2723 
2724 	return (cnt);
2725 }
2726 
2727 static const char *crl_reasons[] = {
2728 	/* CRL reason strings */
2729 	"unspecified",
2730 	"keyCompromise",
2731 	"CACompromise",
2732 	"affiliationChanged",
2733 	"superseded",
2734 	"cessationOfOperation",
2735 	"certificateHold",
2736 	"removeFromCRL",
2737 	/* Additional pseudo reasons */
2738 	"holdInstruction",
2739 	"keyTime",
2740 	"CAkeyTime"
2741 };
2742 
2743 #define NUM_REASONS (sizeof(crl_reasons) / sizeof(char *))
2744 
2745 /* Given revocation information convert to a DB string.
2746  * The format of the string is:
2747  * revtime[,reason,extra]. Where 'revtime' is the
2748  * revocation time (the current time). 'reason' is the
2749  * optional CRL reason and 'extra' is any additional
2750  * argument
2751  */
2752 
2753 char *
make_revocation_str(int rev_type,char * rev_arg)2754 make_revocation_str(int rev_type, char *rev_arg)
2755 {
2756 	char *other = NULL, *str;
2757 	const char *reason = NULL;
2758 	ASN1_OBJECT *otmp;
2759 	ASN1_UTCTIME *revtm = NULL;
2760 	int i;
2761 	switch (rev_type) {
2762 	case REV_NONE:
2763 		break;
2764 
2765 	case REV_CRL_REASON:
2766 		for (i = 0; i < 8; i++) {
2767 			if (strcasecmp(rev_arg, crl_reasons[i]) == 0) {
2768 				reason = crl_reasons[i];
2769 				break;
2770 			}
2771 		}
2772 		if (reason == NULL) {
2773 			BIO_printf(bio_err, "Unknown CRL reason %s\n", rev_arg);
2774 			return NULL;
2775 		}
2776 		break;
2777 
2778 	case REV_HOLD:
2779 		/* Argument is an OID */
2780 		otmp = OBJ_txt2obj(rev_arg, 0);
2781 		ASN1_OBJECT_free(otmp);
2782 
2783 		if (otmp == NULL) {
2784 			BIO_printf(bio_err,
2785 			    "Invalid object identifier %s\n", rev_arg);
2786 			return NULL;
2787 		}
2788 		reason = "holdInstruction";
2789 		other = rev_arg;
2790 		break;
2791 
2792 	case REV_KEY_COMPROMISE:
2793 	case REV_CA_COMPROMISE:
2794 		/* Argument is the key compromise time  */
2795 		if (!ASN1_GENERALIZEDTIME_set_string(NULL, rev_arg)) {
2796 			BIO_printf(bio_err,
2797 			    "Invalid time format %s. Need YYYYMMDDHHMMSSZ\n",
2798 			    rev_arg);
2799 			return NULL;
2800 		}
2801 		other = rev_arg;
2802 		if (rev_type == REV_KEY_COMPROMISE)
2803 			reason = "keyTime";
2804 		else
2805 			reason = "CAkeyTime";
2806 
2807 		break;
2808 	}
2809 
2810 	revtm = X509_gmtime_adj(NULL, 0);
2811 	if (revtm == NULL)
2812 		return NULL;
2813 
2814 	if (asprintf(&str, "%s%s%s%s%s", revtm->data,
2815 	    reason ? "," : "", reason ? reason : "",
2816 	    other ? "," : "", other ? other : "") == -1)
2817 		str = NULL;
2818 
2819 	ASN1_UTCTIME_free(revtm);
2820 
2821 	return str;
2822 }
2823 
2824 /* Convert revocation field to X509_REVOKED entry
2825  * return code:
2826  * 0 error
2827  * 1 OK
2828  * 2 OK and some extensions added (i.e. V2 CRL)
2829  */
2830 
2831 int
make_revoked(X509_REVOKED * rev,const char * str)2832 make_revoked(X509_REVOKED *rev, const char *str)
2833 {
2834 	char *tmp = NULL;
2835 	int reason_code = -1;
2836 	int i, ret = 0;
2837 	ASN1_OBJECT *hold = NULL;
2838 	ASN1_GENERALIZEDTIME *comp_time = NULL;
2839 	ASN1_ENUMERATED *rtmp = NULL;
2840 
2841 	ASN1_TIME *revDate = NULL;
2842 
2843 	i = unpack_revinfo(&revDate, &reason_code, &hold, &comp_time, str);
2844 
2845 	if (i == 0)
2846 		goto err;
2847 
2848 	if (rev != NULL && !X509_REVOKED_set_revocationDate(rev, revDate))
2849 		goto err;
2850 
2851 	if (rev != NULL && (reason_code != OCSP_REVOKED_STATUS_NOSTATUS)) {
2852 		rtmp = ASN1_ENUMERATED_new();
2853 		if (rtmp == NULL || !ASN1_ENUMERATED_set(rtmp, reason_code))
2854 			goto err;
2855 		if (!X509_REVOKED_add1_ext_i2d(rev, NID_crl_reason, rtmp, 0, 0))
2856 			goto err;
2857 	}
2858 	if (rev != NULL && comp_time != NULL) {
2859 		if (!X509_REVOKED_add1_ext_i2d(rev, NID_invalidity_date,
2860 		    comp_time, 0, 0))
2861 			goto err;
2862 	}
2863 	if (rev != NULL && hold != NULL) {
2864 		if (!X509_REVOKED_add1_ext_i2d(rev, NID_hold_instruction_code,
2865 		    hold, 0, 0))
2866 			goto err;
2867 	}
2868 	if (reason_code != OCSP_REVOKED_STATUS_NOSTATUS)
2869 		ret = 2;
2870 	else
2871 		ret = 1;
2872 
2873  err:
2874 	free(tmp);
2875 
2876 	ASN1_OBJECT_free(hold);
2877 	ASN1_GENERALIZEDTIME_free(comp_time);
2878 	ASN1_ENUMERATED_free(rtmp);
2879 	ASN1_TIME_free(revDate);
2880 
2881 	return ret;
2882 }
2883 
2884 int
old_entry_print(BIO * bp,ASN1_OBJECT * obj,ASN1_STRING * str)2885 old_entry_print(BIO *bp, ASN1_OBJECT *obj, ASN1_STRING *str)
2886 {
2887 	char buf[25], *pbuf, *p;
2888 	int j;
2889 
2890 	j = i2a_ASN1_OBJECT(bp, obj);
2891 	pbuf = buf;
2892 	for (j = 22 - j; j > 0; j--)
2893 		*(pbuf++) = ' ';
2894 	*(pbuf++) = ':';
2895 	*(pbuf++) = '\0';
2896 	BIO_puts(bp, buf);
2897 
2898 	if (str->type == V_ASN1_PRINTABLESTRING)
2899 		BIO_printf(bp, "PRINTABLE:'");
2900 	else if (str->type == V_ASN1_T61STRING)
2901 		BIO_printf(bp, "T61STRING:'");
2902 	else if (str->type == V_ASN1_IA5STRING)
2903 		BIO_printf(bp, "IA5STRING:'");
2904 	else if (str->type == V_ASN1_UNIVERSALSTRING)
2905 		BIO_printf(bp, "UNIVERSALSTRING:'");
2906 	else
2907 		BIO_printf(bp, "ASN.1 %2d:'", str->type);
2908 
2909 	p = (char *) str->data;
2910 	for (j = str->length; j > 0; j--) {
2911 		if ((*p >= ' ') && (*p <= '~'))
2912 			BIO_printf(bp, "%c", *p);
2913 		else if (*p & 0x80)
2914 			BIO_printf(bp, "\\0x%02X", *p);
2915 		else if ((unsigned char) *p == 0xf7)
2916 			BIO_printf(bp, "^?");
2917 		else
2918 			BIO_printf(bp, "^%c", *p + '@');
2919 		p++;
2920 	}
2921 	BIO_printf(bp, "'\n");
2922 	return 1;
2923 }
2924 
2925 int
unpack_revinfo(ASN1_TIME ** prevtm,int * preason,ASN1_OBJECT ** phold,ASN1_GENERALIZEDTIME ** pinvtm,const char * str)2926 unpack_revinfo(ASN1_TIME **prevtm, int *preason, ASN1_OBJECT **phold,
2927     ASN1_GENERALIZEDTIME **pinvtm, const char *str)
2928 {
2929 	char *tmp = NULL;
2930 	char *rtime_str, *reason_str = NULL, *arg_str = NULL, *p;
2931 	int reason_code = -1;
2932 	int ret = 0;
2933 	unsigned int i;
2934 	ASN1_OBJECT *hold = NULL;
2935 	ASN1_GENERALIZEDTIME *comp_time = NULL;
2936 
2937 	if ((tmp = strdup(str)) == NULL) {
2938 		BIO_printf(bio_err, "malloc failed\n");
2939 		goto err;
2940 	}
2941 	p = strchr(tmp, ',');
2942 	rtime_str = tmp;
2943 
2944 	if (p != NULL) {
2945 		*p = '\0';
2946 		p++;
2947 		reason_str = p;
2948 		p = strchr(p, ',');
2949 		if (p != NULL) {
2950 			*p = '\0';
2951 			arg_str = p + 1;
2952 		}
2953 	}
2954 	if (prevtm != NULL) {
2955 		*prevtm = ASN1_UTCTIME_new();
2956 		if (!ASN1_UTCTIME_set_string(*prevtm, rtime_str)) {
2957 			BIO_printf(bio_err, "invalid revocation date %s\n",
2958 			    rtime_str);
2959 			goto err;
2960 		}
2961 	}
2962 	if (reason_str != NULL) {
2963 		for (i = 0; i < NUM_REASONS; i++) {
2964 			if (strcasecmp(reason_str, crl_reasons[i]) == 0) {
2965 				reason_code = i;
2966 				break;
2967 			}
2968 		}
2969 		if (reason_code == OCSP_REVOKED_STATUS_NOSTATUS) {
2970 			BIO_printf(bio_err, "invalid reason code %s\n",
2971 			    reason_str);
2972 			goto err;
2973 		}
2974 		if (reason_code == 7)
2975 			reason_code = OCSP_REVOKED_STATUS_REMOVEFROMCRL;
2976 		else if (reason_code == 8) {	/* Hold instruction */
2977 			if (arg_str == NULL) {
2978 				BIO_printf(bio_err,
2979 				    "missing hold instruction\n");
2980 				goto err;
2981 			}
2982 			reason_code = OCSP_REVOKED_STATUS_CERTIFICATEHOLD;
2983 			hold = OBJ_txt2obj(arg_str, 0);
2984 
2985 			if (hold == NULL) {
2986 				BIO_printf(bio_err,
2987 				    "invalid object identifier %s\n", arg_str);
2988 				goto err;
2989 			}
2990 			if (phold != NULL)
2991 				*phold = hold;
2992 		} else if ((reason_code == 9) || (reason_code == 10)) {
2993 			if (arg_str == NULL) {
2994 				BIO_printf(bio_err,
2995 				    "missing compromised time\n");
2996 				goto err;
2997 			}
2998 			comp_time = ASN1_GENERALIZEDTIME_new();
2999 			if (!ASN1_GENERALIZEDTIME_set_string(comp_time,
3000 			    arg_str)) {
3001 				BIO_printf(bio_err,
3002 				    "invalid compromised time %s\n", arg_str);
3003 				goto err;
3004 			}
3005 			if (reason_code == 9)
3006 				reason_code = OCSP_REVOKED_STATUS_KEYCOMPROMISE;
3007 			else
3008 				reason_code = OCSP_REVOKED_STATUS_CACOMPROMISE;
3009 		}
3010 	}
3011 	if (preason != NULL)
3012 		*preason = reason_code;
3013 	if (pinvtm != NULL)
3014 		*pinvtm = comp_time;
3015 	else
3016 		ASN1_GENERALIZEDTIME_free(comp_time);
3017 
3018 	ret = 1;
3019 
3020  err:
3021 	free(tmp);
3022 
3023 	if (phold == NULL)
3024 		ASN1_OBJECT_free(hold);
3025 	if (pinvtm == NULL)
3026 		ASN1_GENERALIZEDTIME_free(comp_time);
3027 
3028 	return ret;
3029 }
3030 
3031 static char *
bin2hex(unsigned char * data,size_t len)3032 bin2hex(unsigned char *data, size_t len)
3033 {
3034 	char *ret = NULL;
3035 	char hex[] = "0123456789ABCDEF";
3036 	int i;
3037 
3038 	if ((ret = malloc(len * 2 + 1)) != NULL) {
3039 		for (i = 0; i < len; i++) {
3040 			ret[i * 2 + 0] = hex[data[i] >> 4];
3041 			ret[i * 2 + 1] = hex[data[i] & 0x0F];
3042 		}
3043 		ret[len * 2] = '\0';
3044 	}
3045 	return ret;
3046 }
3047