Marin Kraemer <Martin.Kraemer@MchP.Siemens.De> sent us patches to make
[openssl.git] / apps / req.c
1 /* apps/req.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <time.h>
62 #include <string.h>
63 #ifdef NO_STDIO
64 #define APPS_WIN16
65 #endif
66 #include "apps.h"
67 #include <openssl/bio.h>
68 #include <openssl/evp.h>
69 #include <openssl/conf.h>
70 #include <openssl/err.h>
71 #include <openssl/asn1.h>
72 #include <openssl/x509.h>
73 #include <openssl/x509v3.h>
74 #include <openssl/objects.h>
75 #include <openssl/pem.h>
76
77 #define SECTION         "req"
78
79 #define BITS            "default_bits"
80 #define KEYFILE         "default_keyfile"
81 #define PROMPT          "prompt"
82 #define DISTINGUISHED_NAME      "distinguished_name"
83 #define ATTRIBUTES      "attributes"
84 #define V3_EXTENSIONS   "x509_extensions"
85 #define REQ_EXTENSIONS  "req_extensions"
86 #define STRING_MASK     "string_mask"
87
88 #define DEFAULT_KEY_LENGTH      512
89 #define MIN_KEY_LENGTH          384
90
91 #undef PROG
92 #define PROG    req_main
93
94 /* -inform arg  - input format - default PEM (DER or PEM)
95  * -outform arg - output format - default PEM
96  * -in arg      - input file - default stdin
97  * -out arg     - output file - default stdout
98  * -verify      - check request signature
99  * -noout       - don't print stuff out.
100  * -text        - print out human readable text.
101  * -nodes       - no des encryption
102  * -config file - Load configuration file.
103  * -key file    - make a request using key in file (or use it for verification).
104  * -keyform     - key file format.
105  * -rand file(s) - load the file(s) into the PRNG.
106  * -newkey      - make a key and a request.
107  * -modulus     - print RSA modulus.
108  * -x509        - output a self signed X509 structure instead.
109  * -asn1-kludge - output new certificate request in a format that some CA's
110  *                require.  This format is wrong
111  */
112
113 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
114 static int prompt_info(X509_REQ *req,
115                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
116                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
117 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
118                                 STACK_OF(CONF_VALUE) *attr, int attribs);
119 static int add_attribute_object(X509_REQ *req, char *text,
120                                 char *def, char *value, int nid, int min,
121                                 int max);
122 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
123         int nid,int min,int max);
124 #ifndef NO_RSA
125 static void MS_CALLBACK req_cb(int p,int n,void *arg);
126 #endif
127 static int req_check_len(int len,int min,int max);
128 static int check_end(char *str, char *end);
129 #ifndef MONOLITH
130 static char *default_config_file=NULL;
131 static LHASH *config=NULL;
132 #endif
133 static LHASH *req_conf=NULL;
134
135 #define TYPE_RSA        1
136 #define TYPE_DSA        2
137 #define TYPE_DH         3
138
139 int MAIN(int, char **);
140
141 int MAIN(int argc, char **argv)
142         {
143 #ifndef NO_DSA
144         DSA *dsa_params=NULL;
145 #endif
146         int ex=1,x509=0,days=30;
147         X509 *x509ss=NULL;
148         X509_REQ *req=NULL;
149         EVP_PKEY *pkey=NULL;
150         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
151         BIO *in=NULL,*out=NULL;
152         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
153         int nodes=0,kludge=0,newhdr=0;
154         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
155         char *extensions = NULL;
156         char *req_exts = NULL;
157         EVP_CIPHER *cipher=NULL;
158         int modulus=0;
159         char *inrand=NULL;
160         char *passargin = NULL, *passargout = NULL;
161         char *passin = NULL, *passout = NULL;
162         char *p;
163         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
164 #ifndef MONOLITH
165         MS_STATIC char config_name[256];
166 #endif
167
168         req_conf = NULL;
169 #ifndef NO_DES
170         cipher=EVP_des_ede3_cbc();
171 #endif
172         apps_startup();
173
174         if (bio_err == NULL)
175                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
176                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
177
178         infile=NULL;
179         outfile=NULL;
180         informat=FORMAT_PEM;
181         outformat=FORMAT_PEM;
182
183         prog=argv[0];
184         argc--;
185         argv++;
186         while (argc >= 1)
187                 {
188                 if      (strcmp(*argv,"-inform") == 0)
189                         {
190                         if (--argc < 1) goto bad;
191                         informat=str2fmt(*(++argv));
192                         }
193                 else if (strcmp(*argv,"-outform") == 0)
194                         {
195                         if (--argc < 1) goto bad;
196                         outformat=str2fmt(*(++argv));
197                         }
198                 else if (strcmp(*argv,"-key") == 0)
199                         {
200                         if (--argc < 1) goto bad;
201                         keyfile= *(++argv);
202                         }
203                 else if (strcmp(*argv,"-new") == 0)
204                         {
205                         pkey_type=TYPE_RSA;
206                         newreq=1;
207                         }
208                 else if (strcmp(*argv,"-config") == 0)
209                         {       
210                         if (--argc < 1) goto bad;
211                         template= *(++argv);
212                         }
213                 else if (strcmp(*argv,"-keyform") == 0)
214                         {
215                         if (--argc < 1) goto bad;
216                         keyform=str2fmt(*(++argv));
217                         }
218                 else if (strcmp(*argv,"-in") == 0)
219                         {
220                         if (--argc < 1) goto bad;
221                         infile= *(++argv);
222                         }
223                 else if (strcmp(*argv,"-out") == 0)
224                         {
225                         if (--argc < 1) goto bad;
226                         outfile= *(++argv);
227                         }
228                 else if (strcmp(*argv,"-keyout") == 0)
229                         {
230                         if (--argc < 1) goto bad;
231                         keyout= *(++argv);
232                         }
233                 else if (strcmp(*argv,"-passin") == 0)
234                         {
235                         if (--argc < 1) goto bad;
236                         passargin= *(++argv);
237                         }
238                 else if (strcmp(*argv,"-passout") == 0)
239                         {
240                         if (--argc < 1) goto bad;
241                         passargout= *(++argv);
242                         }
243                 else if (strcmp(*argv,"-rand") == 0)
244                         {
245                         if (--argc < 1) goto bad;
246                         inrand= *(++argv);
247                         }
248                 else if (strcmp(*argv,"-newkey") == 0)
249                         {
250                         int is_numeric;
251
252                         if (--argc < 1) goto bad;
253                         p= *(++argv);
254                         is_numeric = p[0] >= '0' && p[0] <= '9';
255                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
256                                 {
257                                 pkey_type=TYPE_RSA;
258                                 if(!is_numeric)
259                                     p+=4;
260                                 newkey= atoi(p);
261                                 }
262                         else
263 #ifndef NO_DSA
264                                 if (strncmp("dsa:",p,4) == 0)
265                                 {
266                                 X509 *xtmp=NULL;
267                                 EVP_PKEY *dtmp;
268
269                                 pkey_type=TYPE_DSA;
270                                 p+=4;
271                                 if ((in=BIO_new_file(p,"r")) == NULL)
272                                         {
273                                         perror(p);
274                                         goto end;
275                                         }
276                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
277                                         {
278                                         ERR_clear_error();
279                                         (void)BIO_reset(in);
280                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
281                                                 {
282                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
283                                                 goto end;
284                                                 }
285
286                                         dtmp=X509_get_pubkey(xtmp);
287                                         if (dtmp->type == EVP_PKEY_DSA)
288                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
289                                         EVP_PKEY_free(dtmp);
290                                         X509_free(xtmp);
291                                         if (dsa_params == NULL)
292                                                 {
293                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
294                                                 goto end;
295                                                 }
296                                         }
297                                 BIO_free(in);
298                                 newkey=BN_num_bits(dsa_params->p);
299                                 in=NULL;
300                                 }
301                         else 
302 #endif
303 #ifndef NO_DH
304                                 if (strncmp("dh:",p,4) == 0)
305                                 {
306                                 pkey_type=TYPE_DH;
307                                 p+=3;
308                                 }
309                         else
310 #endif
311                                 pkey_type=TYPE_RSA;
312
313                         newreq=1;
314                         }
315                 else if (strcmp(*argv,"-newhdr") == 0)
316                         newhdr=1;
317                 else if (strcmp(*argv,"-modulus") == 0)
318                         modulus=1;
319                 else if (strcmp(*argv,"-verify") == 0)
320                         verify=1;
321                 else if (strcmp(*argv,"-nodes") == 0)
322                         nodes=1;
323                 else if (strcmp(*argv,"-noout") == 0)
324                         noout=1;
325                 else if (strcmp(*argv,"-text") == 0)
326                         text=1;
327                 else if (strcmp(*argv,"-x509") == 0)
328                         x509=1;
329                 else if (strcmp(*argv,"-asn1-kludge") == 0)
330                         kludge=1;
331                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
332                         kludge=0;
333                 else if (strcmp(*argv,"-days") == 0)
334                         {
335                         if (--argc < 1) goto bad;
336                         days= atoi(*(++argv));
337                         if (days == 0) days=30;
338                         }
339                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
340                         {
341                         /* ok */
342                         digest=md_alg;
343                         }
344                 else if (strcmp(*argv,"-extensions") == 0)
345                         {
346                         if (--argc < 1) goto bad;
347                         extensions = *(++argv);
348                         }
349                 else if (strcmp(*argv,"-reqexts") == 0)
350                         {
351                         if (--argc < 1) goto bad;
352                         req_exts = *(++argv);
353                         }
354                 else
355                         {
356                         BIO_printf(bio_err,"unknown option %s\n",*argv);
357                         badops=1;
358                         break;
359                         }
360                 argc--;
361                 argv++;
362                 }
363
364         if (badops)
365                 {
366 bad:
367                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
368                 BIO_printf(bio_err,"where options  are\n");
369                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
370                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
371                 BIO_printf(bio_err," -in arg        input file\n");
372                 BIO_printf(bio_err," -out arg       output file\n");
373                 BIO_printf(bio_err," -text          text form of request\n");
374                 BIO_printf(bio_err," -noout         do not output REQ\n");
375                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
376                 BIO_printf(bio_err," -modulus       RSA modulus\n");
377                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
378                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
379                 BIO_printf(bio_err," -keyform arg   key file format\n");
380                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
381                 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
382                 BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
383                 BIO_printf(bio_err,"                the random number generator\n");
384                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
385                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
386
387                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
388                 BIO_printf(bio_err," -config file   request template file.\n");
389                 BIO_printf(bio_err," -new           new request.\n");
390                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
391                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
392                 BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
393                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
394                 BIO_printf(bio_err,"                have been reported as requiring\n");
395                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
396                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
397                 goto end;
398                 }
399
400         ERR_load_crypto_strings();
401         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
402                 BIO_printf(bio_err, "Error getting passwords\n");
403                 goto end;
404         }
405
406 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
407         /* Lets load up our environment a little */
408         p=getenv("OPENSSL_CONF");
409         if (p == NULL)
410                 p=getenv("SSLEAY_CONF");
411         if (p == NULL)
412                 {
413                 strcpy(config_name,X509_get_default_cert_area());
414 #ifndef VMS
415                 strcat(config_name,"/");
416 #endif
417                 strcat(config_name,OPENSSL_CONF);
418                 p=config_name;
419                 }
420         default_config_file=p;
421         config=CONF_load(config,p,NULL);
422 #endif
423
424         if (template != NULL)
425                 {
426                 long errline;
427
428                 BIO_printf(bio_err,"Using configuration from %s\n",template);
429                 req_conf=CONF_load(NULL,template,&errline);
430                 if (req_conf == NULL)
431                         {
432                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
433                         goto end;
434                         }
435                 }
436         else
437                 {
438                 req_conf=config;
439                 BIO_printf(bio_err,"Using configuration from %s\n",
440                         default_config_file);
441                 if (req_conf == NULL)
442                         {
443                         BIO_printf(bio_err,"Unable to load config info\n");
444                         }
445                 }
446
447         if (req_conf != NULL)
448                 {
449                 p=CONF_get_string(req_conf,NULL,"oid_file");
450                 if (p != NULL)
451                         {
452                         BIO *oid_bio;
453
454                         oid_bio=BIO_new_file(p,"r");
455                         if (oid_bio == NULL) 
456                                 {
457                                 /*
458                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
459                                 ERR_print_errors(bio_err);
460                                 */
461                                 }
462                         else
463                                 {
464                                 OBJ_create_objects(oid_bio);
465                                 BIO_free(oid_bio);
466                                 }
467                         }
468                 }
469                 if(!add_oid_section(bio_err, req_conf)) goto end;
470
471         if ((md_alg == NULL) &&
472                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
473                 {
474                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
475                         digest=md_alg;
476                 }
477
478         if(!extensions)
479                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
480         if(extensions) {
481                 /* Check syntax of file */
482                 X509V3_CTX ctx;
483                 X509V3_set_ctx_test(&ctx);
484                 X509V3_set_conf_lhash(&ctx, req_conf);
485                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
486                         BIO_printf(bio_err,
487                          "Error Loading extension section %s\n", extensions);
488                         goto end;
489                 }
490         }
491
492         if(!passin)
493                 passin = CONF_get_string(req_conf, SECTION, "input_password");
494
495         if(!passout)
496                 passout = CONF_get_string(req_conf, SECTION, "output_password");
497
498         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
499
500         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
501                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
502                 goto end;
503         }
504
505         if(!req_exts)
506                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
507         if(req_exts) {
508                 /* Check syntax of file */
509                 X509V3_CTX ctx;
510                 X509V3_set_ctx_test(&ctx);
511                 X509V3_set_conf_lhash(&ctx, req_conf);
512                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
513                         BIO_printf(bio_err,
514                          "Error Loading request extension section %s\n",
515                                                                 req_exts);
516                         goto end;
517                 }
518         }
519
520         in=BIO_new(BIO_s_file());
521         out=BIO_new(BIO_s_file());
522         if ((in == NULL) || (out == NULL))
523                 goto end;
524
525         if (keyfile != NULL)
526                 {
527                 if (BIO_read_filename(in,keyfile) <= 0)
528                         {
529                         perror(keyfile);
530                         goto end;
531                         }
532
533                 if (keyform == FORMAT_ASN1)
534                         pkey=d2i_PrivateKey_bio(in,NULL);
535                 else if (keyform == FORMAT_PEM)
536                         {
537                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin);
538                         }
539                 else
540                         {
541                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
542                         goto end;
543                         }
544
545                 if (pkey == NULL)
546                         {
547                         BIO_printf(bio_err,"unable to load Private key\n");
548                         goto end;
549                         }
550                 if (EVP_PKEY_type(pkey->type) == EVP_PKEY_DSA)
551                         {
552                         char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
553                         app_RAND_load_file(randfile, bio_err, 0);
554                         }
555                 }
556
557         if (newreq && (pkey == NULL))
558                 {
559                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
560                 app_RAND_load_file(randfile, bio_err, 0);
561                 if (inrand)
562                         app_RAND_load_files(inrand);
563         
564                 if (newkey <= 0)
565                         {
566                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
567                         if (newkey <= 0)
568                                 newkey=DEFAULT_KEY_LENGTH;
569                         }
570
571                 if (newkey < MIN_KEY_LENGTH)
572                         {
573                         BIO_printf(bio_err,"private key length is too short,\n");
574                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
575                         goto end;
576                         }
577                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
578                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
579
580                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
581
582 #ifndef NO_RSA
583                 if (pkey_type == TYPE_RSA)
584                         {
585                         if (!EVP_PKEY_assign_RSA(pkey,
586                                 RSA_generate_key(newkey,0x10001,
587                                         req_cb,bio_err)))
588                                 goto end;
589                         }
590                 else
591 #endif
592 #ifndef NO_DSA
593                         if (pkey_type == TYPE_DSA)
594                         {
595                         if (!DSA_generate_key(dsa_params)) goto end;
596                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
597                         dsa_params=NULL;
598                         }
599 #endif
600
601                 app_RAND_write_file(randfile, bio_err);
602
603                 if (pkey == NULL) goto end;
604
605                 if (keyout == NULL)
606                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
607
608                 if (keyout == NULL)
609                         {
610                         BIO_printf(bio_err,"writing new private key to stdout\n");
611                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
612                         }
613                 else
614                         {
615                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
616                         if (BIO_write_filename(out,keyout) <= 0)
617                                 {
618                                 perror(keyout);
619                                 goto end;
620                                 }
621                         }
622
623                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
624                 if (p == NULL)
625                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
626                 if ((p != NULL) && (strcmp(p,"no") == 0))
627                         cipher=NULL;
628                 if (nodes) cipher=NULL;
629                 
630                 i=0;
631 loop:
632                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
633                         NULL,0,NULL,passout))
634                         {
635                         if ((ERR_GET_REASON(ERR_peek_error()) ==
636                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
637                                 {
638                                 ERR_clear_error();
639                                 i++;
640                                 goto loop;
641                                 }
642                         goto end;
643                         }
644                 BIO_printf(bio_err,"-----\n");
645                 }
646
647         if (!newreq)
648                 {
649                 /* Since we are using a pre-existing certificate
650                  * request, the kludge 'format' info should not be
651                  * changed. */
652                 kludge= -1;
653                 if (infile == NULL)
654                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
655                 else
656                         {
657                         if (BIO_read_filename(in,infile) <= 0)
658                                 {
659                                 perror(infile);
660                                 goto end;
661                                 }
662                         }
663
664                 if      (informat == FORMAT_ASN1)
665                         req=d2i_X509_REQ_bio(in,NULL);
666                 else if (informat == FORMAT_PEM)
667                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
668                 else
669                         {
670                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
671                         goto end;
672                         }
673                 if (req == NULL)
674                         {
675                         BIO_printf(bio_err,"unable to load X509 request\n");
676                         goto end;
677                         }
678                 }
679
680         if (newreq || x509)
681                 {
682 #ifndef NO_DSA
683                 if (pkey->type == EVP_PKEY_DSA)
684                         digest=EVP_dss1();
685 #endif
686
687                 if (pkey == NULL)
688                         {
689                         BIO_printf(bio_err,"you need to specify a private key\n");
690                         goto end;
691                         }
692                 if (req == NULL)
693                         {
694                         req=X509_REQ_new();
695                         if (req == NULL)
696                                 {
697                                 goto end;
698                                 }
699
700                         i=make_REQ(req,pkey,!x509);
701                         if (kludge >= 0)
702                                 req->req_info->req_kludge=kludge;
703                         if (!i)
704                                 {
705                                 BIO_printf(bio_err,"problems making Certificate Request\n");
706                                 goto end;
707                                 }
708                         }
709                 if (x509)
710                         {
711                         EVP_PKEY *tmppkey;
712                         X509V3_CTX ext_ctx;
713                         if ((x509ss=X509_new()) == NULL) goto end;
714
715                         /* Set version to V3 */
716                         if(!X509_set_version(x509ss, 2)) goto end;
717                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
718
719                         X509_set_issuer_name(x509ss,
720                                 X509_REQ_get_subject_name(req));
721                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
722                         X509_gmtime_adj(X509_get_notAfter(x509ss),
723                                 (long)60*60*24*days);
724                         X509_set_subject_name(x509ss,
725                                 X509_REQ_get_subject_name(req));
726                         tmppkey = X509_REQ_get_pubkey(req);
727                         X509_set_pubkey(x509ss,tmppkey);
728                         EVP_PKEY_free(tmppkey);
729
730                         /* Set up V3 context struct */
731
732                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
733                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
734
735                         /* Add extensions */
736                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
737                                         &ext_ctx, extensions, x509ss))
738                             {
739                             BIO_printf(bio_err,
740                                        "Error Loading extension section %s\n",
741                                        extensions);
742                             goto end;
743                             }
744
745                         if (!(i=X509_sign(x509ss,pkey,digest)))
746                                 goto end;
747                         }
748                 else
749                         {
750                         X509V3_CTX ext_ctx;
751
752                         /* Set up V3 context struct */
753
754                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
755                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
756
757                         /* Add extensions */
758                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
759                                         &ext_ctx, req_exts, req))
760                             {
761                             BIO_printf(bio_err,
762                                        "Error Loading extension section %s\n",
763                                        req_exts);
764                             goto end;
765                             }
766                         if (!(i=X509_REQ_sign(req,pkey,digest)))
767                                 goto end;
768                         }
769                 }
770
771         if (verify && !x509)
772                 {
773                 int tmp=0;
774
775                 if (pkey == NULL)
776                         {
777                         pkey=X509_REQ_get_pubkey(req);
778                         tmp=1;
779                         if (pkey == NULL) goto end;
780                         }
781
782                 i=X509_REQ_verify(req,pkey);
783                 if (tmp) {
784                         EVP_PKEY_free(pkey);
785                         pkey=NULL;
786                 }
787
788                 if (i < 0)
789                         {
790                         goto end;
791                         }
792                 else if (i == 0)
793                         {
794                         BIO_printf(bio_err,"verify failure\n");
795                         }
796                 else /* if (i > 0) */
797                         BIO_printf(bio_err,"verify OK\n");
798                 }
799
800         if (noout && !text && !modulus)
801                 {
802                 ex=0;
803                 goto end;
804                 }
805
806         if (outfile == NULL)
807                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
808         else
809                 {
810                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
811                         i=(int)BIO_append_filename(out,outfile);
812                 else
813                         i=(int)BIO_write_filename(out,outfile);
814                 if (!i)
815                         {
816                         perror(outfile);
817                         goto end;
818                         }
819                 }
820
821         if (text)
822                 {
823                 if (x509)
824                         X509_print(out,x509ss);
825                 else    
826                         X509_REQ_print(out,req);
827                 }
828
829         if (modulus)
830                 {
831                 EVP_PKEY *pubkey;
832
833                 if (x509)
834                         pubkey=X509_get_pubkey(x509ss);
835                 else
836                         pubkey=X509_REQ_get_pubkey(req);
837                 if (pubkey == NULL)
838                         {
839                         fprintf(stdout,"Modulus=unavailable\n");
840                         goto end; 
841                         }
842                 fprintf(stdout,"Modulus=");
843 #ifndef NO_RSA
844                 if (pubkey->type == EVP_PKEY_RSA)
845                         BN_print(out,pubkey->pkey.rsa->n);
846                 else
847 #endif
848                         fprintf(stdout,"Wrong Algorithm type");
849                 fprintf(stdout,"\n");
850                 }
851
852         if (!noout && !x509)
853                 {
854                 if      (outformat == FORMAT_ASN1)
855                         i=i2d_X509_REQ_bio(out,req);
856                 else if (outformat == FORMAT_PEM) {
857                         if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
858                         else i=PEM_write_bio_X509_REQ(out,req);
859                 } else {
860                         BIO_printf(bio_err,"bad output format specified for outfile\n");
861                         goto end;
862                         }
863                 if (!i)
864                         {
865                         BIO_printf(bio_err,"unable to write X509 request\n");
866                         goto end;
867                         }
868                 }
869         if (!noout && x509 && (x509ss != NULL))
870                 {
871                 if      (outformat == FORMAT_ASN1)
872                         i=i2d_X509_bio(out,x509ss);
873                 else if (outformat == FORMAT_PEM)
874                         i=PEM_write_bio_X509(out,x509ss);
875                 else    {
876                         BIO_printf(bio_err,"bad output format specified for outfile\n");
877                         goto end;
878                         }
879                 if (!i)
880                         {
881                         BIO_printf(bio_err,"unable to write X509 certificate\n");
882                         goto end;
883                         }
884                 }
885         ex=0;
886 end:
887         if (ex)
888                 {
889                 ERR_print_errors(bio_err);
890                 }
891         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
892         BIO_free(in);
893         BIO_free(out);
894         EVP_PKEY_free(pkey);
895         X509_REQ_free(req);
896         X509_free(x509ss);
897         if(passargin && passin) OPENSSL_free(passin);
898         if(passargout && passout) OPENSSL_free(passout);
899         OBJ_cleanup();
900 #ifndef NO_DSA
901         if (dsa_params != NULL) DSA_free(dsa_params);
902 #endif
903         EXIT(ex);
904         }
905
906 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
907         {
908         int ret=0,i;
909         char no_prompt = 0;
910         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
911         char *tmp, *dn_sect,*attr_sect;
912
913         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
914         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
915
916         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
917         if (dn_sect == NULL)
918                 {
919                 BIO_printf(bio_err,"unable to find '%s' in config\n",
920                         DISTINGUISHED_NAME);
921                 goto err;
922                 }
923         dn_sk=CONF_get_section(req_conf,dn_sect);
924         if (dn_sk == NULL)
925                 {
926                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
927                 goto err;
928                 }
929
930         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
931         if (attr_sect == NULL)
932                 attr_sk=NULL;
933         else
934                 {
935                 attr_sk=CONF_get_section(req_conf,attr_sect);
936                 if (attr_sk == NULL)
937                         {
938                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
939                         goto err;
940                         }
941                 }
942
943         /* setup version number */
944         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
945
946         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
947         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
948         if(!i) goto err;
949
950         X509_REQ_set_pubkey(req,pkey);
951
952         ret=1;
953 err:
954         return(ret);
955         }
956
957
958 static int prompt_info(X509_REQ *req,
959                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
960                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
961         {
962         int i;
963         char *p,*q;
964         char buf[100];
965         int nid,min,max;
966         char *type,*def,*value;
967         CONF_VALUE *v;
968         X509_NAME *subj;
969         subj = X509_REQ_get_subject_name(req);
970         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
971         BIO_printf(bio_err,"into your certificate request.\n");
972         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
973         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
974         BIO_printf(bio_err,"For some fields there will be a default value,\n");
975         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
976         BIO_printf(bio_err,"-----\n");
977
978
979         if (sk_CONF_VALUE_num(dn_sk))
980                 {
981                 i= -1;
982 start:          for (;;)
983                         {
984                         i++;
985                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
986
987                         v=sk_CONF_VALUE_value(dn_sk,i);
988                         p=q=NULL;
989                         type=v->name;
990                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
991                                 !check_end(type,"_default") ||
992                                          !check_end(type,"_value")) continue;
993                         /* Skip past any leading X. X: X, etc to allow for
994                          * multiple instances 
995                          */
996                         for(p = v->name; *p ; p++) 
997                                 if ((*p == ':') || (*p == ',') ||
998                                                          (*p == '.')) {
999                                         p++;
1000                                         if(*p) type = p;
1001                                         break;
1002                                 }
1003                         /* If OBJ not recognised ignore it */
1004                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1005                         sprintf(buf,"%s_default",v->name);
1006                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1007                                 def="";
1008                                 
1009                         sprintf(buf,"%s_value",v->name);
1010                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1011                                 value=NULL;
1012
1013                         sprintf(buf,"%s_min",v->name);
1014                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
1015
1016                         sprintf(buf,"%s_max",v->name);
1017                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1018
1019                         if (!add_DN_object(subj,v->value,def,value,nid,
1020                                 min,max))
1021                                 return 0;
1022                         }
1023                 if (X509_NAME_entry_count(subj) == 0)
1024                         {
1025                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1026                         return 0;
1027                         }
1028
1029                 if (attribs)
1030                         {
1031                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1032                                 {
1033                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1034                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1035                                 }
1036
1037                         i= -1;
1038 start2:                 for (;;)
1039                                 {
1040                                 i++;
1041                                 if ((attr_sk == NULL) ||
1042                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1043                                         break;
1044
1045                                 v=sk_CONF_VALUE_value(attr_sk,i);
1046                                 type=v->name;
1047                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1048                                         goto start2;
1049
1050                                 sprintf(buf,"%s_default",type);
1051                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1052                                         == NULL)
1053                                         def="";
1054                                 
1055                                 sprintf(buf,"%s_value",type);
1056                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1057                                         == NULL)
1058                                         value=NULL;
1059
1060                                 sprintf(buf,"%s_min",type);
1061                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1062
1063                                 sprintf(buf,"%s_max",type);
1064                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1065
1066                                 if (!add_attribute_object(req,
1067                                         v->value,def,value,nid,min,max))
1068                                         return 0;
1069                                 }
1070                         }
1071                 }
1072         else
1073                 {
1074                 BIO_printf(bio_err,"No template, please set one up.\n");
1075                 return 0;
1076                 }
1077
1078         return 1;
1079
1080         }
1081
1082 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1083                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1084         {
1085         int i;
1086         char *p,*q;
1087         char *type;
1088         CONF_VALUE *v;
1089         X509_NAME *subj;
1090
1091         subj = X509_REQ_get_subject_name(req);
1092
1093         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1094                 {
1095                 v=sk_CONF_VALUE_value(dn_sk,i);
1096                 p=q=NULL;
1097                 type=v->name;
1098                 /* Skip past any leading X. X: X, etc to allow for
1099                  * multiple instances 
1100                  */
1101                 for(p = v->name; *p ; p++) 
1102 #ifndef CHARSET_EBCDIC
1103                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1104 #else
1105                         if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.'])) {
1106 #endif
1107                                 p++;
1108                                 if(*p) type = p;
1109                                 break;
1110                         }
1111                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1112                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1113
1114                 }
1115
1116                 if (!X509_NAME_entry_count(subj))
1117                         {
1118                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1119                         return 0;
1120                         }
1121                 if (attribs)
1122                         {
1123                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1124                                 {
1125                                 v=sk_CONF_VALUE_value(attr_sk,i);
1126                                 if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC,
1127                                         (unsigned char *)v->value, -1)) return 0;
1128                                 }
1129                         }
1130         return 1;
1131         }
1132
1133
1134 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1135              int nid, int min, int max)
1136         {
1137         int i,ret=0;
1138         MS_STATIC char buf[1024];
1139 start:
1140         BIO_printf(bio_err,"%s [%s]:",text,def);
1141         (void)BIO_flush(bio_err);
1142         if (value != NULL)
1143                 {
1144                 strcpy(buf,value);
1145                 strcat(buf,"\n");
1146                 BIO_printf(bio_err,"%s\n",value);
1147                 }
1148         else
1149                 {
1150                 buf[0]='\0';
1151                 fgets(buf,1024,stdin);
1152                 }
1153
1154         if (buf[0] == '\0') return(0);
1155         else if (buf[0] == '\n')
1156                 {
1157                 if ((def == NULL) || (def[0] == '\0'))
1158                         return(1);
1159                 strcpy(buf,def);
1160                 strcat(buf,"\n");
1161                 }
1162         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1163
1164         i=strlen(buf);
1165         if (buf[i-1] != '\n')
1166                 {
1167                 BIO_printf(bio_err,"weird input :-(\n");
1168                 return(0);
1169                 }
1170         buf[--i]='\0';
1171
1172 #ifdef CHARSET_EBCDIC
1173         ebcdic2ascii(buf, buf, i);
1174 #endif
1175         if(!req_check_len(i, min, max)) goto start;
1176         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1177                                 (unsigned char *) buf, -1,-1,0)) goto err;
1178         ret=1;
1179 err:
1180         return(ret);
1181         }
1182
1183 static int add_attribute_object(X509_REQ *req, char *text,
1184                                 char *def, char *value, int nid, int min,
1185                                 int max)
1186         {
1187         int i;
1188         static char buf[1024];
1189
1190 start:
1191         BIO_printf(bio_err,"%s [%s]:",text,def);
1192         (void)BIO_flush(bio_err);
1193         if (value != NULL)
1194                 {
1195                 strcpy(buf,value);
1196                 strcat(buf,"\n");
1197                 BIO_printf(bio_err,"%s\n",value);
1198                 }
1199         else
1200                 {
1201                 buf[0]='\0';
1202                 fgets(buf,1024,stdin);
1203                 }
1204
1205         if (buf[0] == '\0') return(0);
1206         else if (buf[0] == '\n')
1207                 {
1208                 if ((def == NULL) || (def[0] == '\0'))
1209                         return(1);
1210                 strcpy(buf,def);
1211                 strcat(buf,"\n");
1212                 }
1213         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1214
1215         i=strlen(buf);
1216         if (buf[i-1] != '\n')
1217                 {
1218                 BIO_printf(bio_err,"weird input :-(\n");
1219                 return(0);
1220                 }
1221         buf[--i]='\0';
1222 #ifdef CHARSET_EBCDIC
1223         ebcdic2ascii(buf, buf, i);
1224 #endif
1225         if(!req_check_len(i, min, max)) goto start;
1226
1227         if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC,
1228                                         (unsigned char *)buf, -1)) {
1229                 BIO_printf(bio_err, "Error adding attribute\n");
1230                 ERR_print_errors(bio_err);
1231                 goto err;
1232         }
1233
1234         return(1);
1235 err:
1236         return(0);
1237         }
1238
1239 #ifndef NO_RSA
1240 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1241         {
1242         char c='*';
1243
1244         if (p == 0) c='.';
1245         if (p == 1) c='+';
1246         if (p == 2) c='*';
1247         if (p == 3) c='\n';
1248         BIO_write((BIO *)arg,&c,1);
1249         (void)BIO_flush((BIO *)arg);
1250 #ifdef LINT
1251         p=n;
1252 #endif
1253         }
1254 #endif
1255
1256 static int req_check_len(int len, int min, int max)
1257         {
1258         if (len < min)
1259                 {
1260                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1261                 return(0);
1262                 }
1263         if ((max != 0) && (len > max))
1264                 {
1265                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1266                 return(0);
1267                 }
1268         return(1);
1269         }
1270
1271 /* Check if the end of a string matches 'end' */
1272 static int check_end(char *str, char *end)
1273 {
1274         int elen, slen; 
1275         char *tmp;
1276         elen = strlen(end);
1277         slen = strlen(str);
1278         if(elen > slen) return 1;
1279         tmp = str + slen - elen;
1280         return strcmp(tmp, end);
1281 }