14e8ef5a4fdce902d4d33544d5c48fd9a02987ab
[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  * -newkey      - make a key and a request.
106  * -modulus     - print RSA modulus.
107  * -x509        - output a self signed X509 structure instead.
108  * -asn1-kludge - output new certificate request in a format that some CA's
109  *                require.  This format is wrong
110  */
111
112 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
113 static int prompt_info(X509_REQ *req,
114                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
115                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
116 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
117                                 STACK_OF(CONF_VALUE) *attr, int attribs);
118 static int add_attribute_object(X509_REQ *req, char *text,
119                                 char *def, char *value, int nid, int min,
120                                 int max);
121 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
122         int nid,int min,int max);
123 #ifndef NO_RSA
124 static void MS_CALLBACK req_cb(int p,int n,void *arg);
125 #endif
126 static int req_check_len(int len,int min,int max);
127 static int check_end(char *str, char *end);
128 static int add_oid_section(LHASH *conf);
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;
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 *passin = NULL, *passout = NULL;
160         char *p;
161         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
162 #ifndef MONOLITH
163         MS_STATIC char config_name[256];
164 #endif
165
166         req_conf = NULL;
167 #ifndef NO_DES
168         cipher=EVP_des_ede3_cbc();
169 #endif
170         apps_startup();
171
172         if (bio_err == NULL)
173                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
174                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
175
176         infile=NULL;
177         outfile=NULL;
178         informat=FORMAT_PEM;
179         outformat=FORMAT_PEM;
180
181         prog=argv[0];
182         argc--;
183         argv++;
184         while (argc >= 1)
185                 {
186                 if      (strcmp(*argv,"-inform") == 0)
187                         {
188                         if (--argc < 1) goto bad;
189                         informat=str2fmt(*(++argv));
190                         }
191                 else if (strcmp(*argv,"-outform") == 0)
192                         {
193                         if (--argc < 1) goto bad;
194                         outformat=str2fmt(*(++argv));
195                         }
196                 else if (strcmp(*argv,"-key") == 0)
197                         {
198                         if (--argc < 1) goto bad;
199                         keyfile= *(++argv);
200                         }
201                 else if (strcmp(*argv,"-new") == 0)
202                         {
203                         pkey_type=TYPE_RSA;
204                         newreq=1;
205                         }
206                 else if (strcmp(*argv,"-config") == 0)
207                         {       
208                         if (--argc < 1) goto bad;
209                         template= *(++argv);
210                         }
211                 else if (strcmp(*argv,"-keyform") == 0)
212                         {
213                         if (--argc < 1) goto bad;
214                         keyform=str2fmt(*(++argv));
215                         }
216                 else if (strcmp(*argv,"-in") == 0)
217                         {
218                         if (--argc < 1) goto bad;
219                         infile= *(++argv);
220                         }
221                 else if (strcmp(*argv,"-out") == 0)
222                         {
223                         if (--argc < 1) goto bad;
224                         outfile= *(++argv);
225                         }
226                 else if (strcmp(*argv,"-keyout") == 0)
227                         {
228                         if (--argc < 1) goto bad;
229                         keyout= *(++argv);
230                         }
231                 else if (strcmp(*argv,"-passin") == 0)
232                         {
233                         if (--argc < 1) goto bad;
234                         passin= *(++argv);
235                         }
236                 else if (strcmp(*argv,"-envpassin") == 0)
237                         {
238                         if (--argc < 1) goto bad;
239                                 if(!(passin= getenv(*(++argv))))
240                                 {
241                                 BIO_printf(bio_err,
242                                  "Can't read environment variable %s\n",
243                                                                 *argv);
244                                 badops = 1;
245                                 }
246                         }
247                 else if (strcmp(*argv,"-envpassout") == 0)
248                         {
249                         if (--argc < 1) goto bad;
250                         if(!(passout= getenv(*(++argv))))
251                                 {
252                                 BIO_printf(bio_err,
253                                  "Can't read environment variable %s\n",
254                                                                 *argv);
255                                 badops = 1;
256                                 }
257                         }
258                 else if (strcmp(*argv,"-passout") == 0)
259                         {
260                         if (--argc < 1) goto bad;
261                         passout= *(++argv);
262                         }
263                 else if (strcmp(*argv,"-newkey") == 0)
264                         {
265                         int is_numeric;
266
267                         if (--argc < 1) goto bad;
268                         p= *(++argv);
269                         is_numeric = p[0] >= '0' && p[0] <= '9';
270                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
271                                 {
272                                 pkey_type=TYPE_RSA;
273                                 if(!is_numeric)
274                                     p+=4;
275                                 newkey= atoi(p);
276                                 }
277                         else
278 #ifndef NO_DSA
279                                 if (strncmp("dsa:",p,4) == 0)
280                                 {
281                                 X509 *xtmp=NULL;
282                                 EVP_PKEY *dtmp;
283
284                                 pkey_type=TYPE_DSA;
285                                 p+=4;
286                                 if ((in=BIO_new_file(p,"r")) == NULL)
287                                         {
288                                         perror(p);
289                                         goto end;
290                                         }
291                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
292                                         {
293                                         ERR_clear_error();
294                                         (void)BIO_reset(in);
295                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
296                                                 {
297                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
298                                                 goto end;
299                                                 }
300
301                                         dtmp=X509_get_pubkey(xtmp);
302                                         if (dtmp->type == EVP_PKEY_DSA)
303                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
304                                         EVP_PKEY_free(dtmp);
305                                         X509_free(xtmp);
306                                         if (dsa_params == NULL)
307                                                 {
308                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
309                                                 goto end;
310                                                 }
311                                         }
312                                 BIO_free(in);
313                                 newkey=BN_num_bits(dsa_params->p);
314                                 in=NULL;
315                                 }
316                         else 
317 #endif
318 #ifndef NO_DH
319                                 if (strncmp("dh:",p,4) == 0)
320                                 {
321                                 pkey_type=TYPE_DH;
322                                 p+=3;
323                                 }
324                         else
325 #endif
326                                 pkey_type=TYPE_RSA;
327
328                         newreq=1;
329                         }
330                 else if (strcmp(*argv,"-modulus") == 0)
331                         modulus=1;
332                 else if (strcmp(*argv,"-verify") == 0)
333                         verify=1;
334                 else if (strcmp(*argv,"-nodes") == 0)
335                         nodes=1;
336                 else if (strcmp(*argv,"-noout") == 0)
337                         noout=1;
338                 else if (strcmp(*argv,"-text") == 0)
339                         text=1;
340                 else if (strcmp(*argv,"-x509") == 0)
341                         x509=1;
342                 else if (strcmp(*argv,"-asn1-kludge") == 0)
343                         kludge=1;
344                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
345                         kludge=0;
346                 else if (strcmp(*argv,"-days") == 0)
347                         {
348                         if (--argc < 1) goto bad;
349                         days= atoi(*(++argv));
350                         if (days == 0) days=30;
351                         }
352                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
353                         {
354                         /* ok */
355                         digest=md_alg;
356                         }
357                 else if (strcmp(*argv,"-extensions") == 0)
358                         {
359                         if (--argc < 1) goto bad;
360                         extensions = *(++argv);
361                         }
362                 else if (strcmp(*argv,"-reqexts") == 0)
363                         {
364                         if (--argc < 1) goto bad;
365                         req_exts = *(++argv);
366                         }
367                 else
368                         {
369                         BIO_printf(bio_err,"unknown option %s\n",*argv);
370                         badops=1;
371                         break;
372                         }
373                 argc--;
374                 argv++;
375                 }
376
377         if (badops)
378                 {
379 bad:
380                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
381                 BIO_printf(bio_err,"where options  are\n");
382                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
383                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
384                 BIO_printf(bio_err," -in arg        input file\n");
385                 BIO_printf(bio_err," -out arg       output file\n");
386                 BIO_printf(bio_err," -text          text form of request\n");
387                 BIO_printf(bio_err," -noout         do not output REQ\n");
388                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
389                 BIO_printf(bio_err," -modulus       RSA modulus\n");
390                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
391                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
392                 BIO_printf(bio_err," -keyform arg   key file format\n");
393                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
394                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
395                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
396
397                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
398                 BIO_printf(bio_err," -config file   request template file.\n");
399                 BIO_printf(bio_err," -new           new request.\n");
400                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
401                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
402                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
403                 BIO_printf(bio_err,"                have been reported as requiring\n");
404                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
405                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
406                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
407                 goto end;
408                 }
409
410         ERR_load_crypto_strings();
411
412 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
413         /* Lets load up our environment a little */
414         p=getenv("OPENSSL_CONF");
415         if (p == NULL)
416                 p=getenv("SSLEAY_CONF");
417         if (p == NULL)
418                 {
419                 strcpy(config_name,X509_get_default_cert_area());
420 #ifndef VMS
421                 strcat(config_name,"/");
422 #endif
423                 strcat(config_name,OPENSSL_CONF);
424                 p=config_name;
425                 }
426         default_config_file=p;
427         config=CONF_load(config,p,NULL);
428 #endif
429
430         if (template != NULL)
431                 {
432                 long errline;
433
434                 BIO_printf(bio_err,"Using configuration from %s\n",template);
435                 req_conf=CONF_load(NULL,template,&errline);
436                 if (req_conf == NULL)
437                         {
438                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
439                         goto end;
440                         }
441                 }
442         else
443                 {
444                 req_conf=config;
445                 BIO_printf(bio_err,"Using configuration from %s\n",
446                         default_config_file);
447                 if (req_conf == NULL)
448                         {
449                         BIO_printf(bio_err,"Unable to load config info\n");
450                         }
451                 }
452
453         if (req_conf != NULL)
454                 {
455                 p=CONF_get_string(req_conf,NULL,"oid_file");
456                 if (p != NULL)
457                         {
458                         BIO *oid_bio;
459
460                         oid_bio=BIO_new_file(p,"r");
461                         if (oid_bio == NULL) 
462                                 {
463                                 /*
464                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
465                                 ERR_print_errors(bio_err);
466                                 */
467                                 }
468                         else
469                                 {
470                                 OBJ_create_objects(oid_bio);
471                                 BIO_free(oid_bio);
472                                 }
473                         }
474                 }
475                 if(!add_oid_section(req_conf)) goto end;
476
477         if ((md_alg == NULL) &&
478                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
479                 {
480                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
481                         digest=md_alg;
482                 }
483
484         if(!extensions)
485                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
486         if(extensions) {
487                 /* Check syntax of file */
488                 X509V3_CTX ctx;
489                 X509V3_set_ctx_test(&ctx);
490                 X509V3_set_conf_lhash(&ctx, req_conf);
491                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
492                         BIO_printf(bio_err,
493                          "Error Loading extension section %s\n", extensions);
494                         goto end;
495                 }
496         }
497
498         if(!passin)
499                 passin = CONF_get_string(req_conf, SECTION, "input_password");
500
501         if(!passout)
502                 passout = CONF_get_string(req_conf, SECTION, "output_password");
503
504         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
505
506         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
507                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
508                 goto end;
509         }
510
511         if(!req_exts)
512                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
513         if(req_exts) {
514                 /* Check syntax of file */
515                 X509V3_CTX ctx;
516                 X509V3_set_ctx_test(&ctx);
517                 X509V3_set_conf_lhash(&ctx, req_conf);
518                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
519                         BIO_printf(bio_err,
520                          "Error Loading request extension section %s\n",
521                                                                 req_exts);
522                         goto end;
523                 }
524         }
525
526         in=BIO_new(BIO_s_file());
527         out=BIO_new(BIO_s_file());
528         if ((in == NULL) || (out == NULL))
529                 goto end;
530
531         if (keyfile != NULL)
532                 {
533                 if (BIO_read_filename(in,keyfile) <= 0)
534                         {
535                         perror(keyfile);
536                         goto end;
537                         }
538
539                 if (keyform == FORMAT_ASN1)
540                         pkey=d2i_PrivateKey_bio(in,NULL);
541                 else if (keyform == FORMAT_PEM)
542                         {
543                         pkey=PEM_read_bio_PrivateKey(in,NULL,PEM_cb,passin);
544                         }
545                 else
546                         {
547                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
548                         goto end;
549                         }
550
551                 if (pkey == NULL)
552                         {
553                         BIO_printf(bio_err,"unable to load Private key\n");
554                         goto end;
555                         }
556                 }
557
558         if (newreq && (pkey == NULL))
559                 {
560                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
561                 app_RAND_load_file(randfile, bio_err, 0);
562         
563                 if (newkey <= 0)
564                         {
565                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
566                         if (newkey <= 0)
567                                 newkey=DEFAULT_KEY_LENGTH;
568                         }
569
570                 if (newkey < MIN_KEY_LENGTH)
571                         {
572                         BIO_printf(bio_err,"private key length is too short,\n");
573                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
574                         goto end;
575                         }
576                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
577                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
578
579                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
580
581 #ifndef NO_RSA
582                 if (pkey_type == TYPE_RSA)
583                         {
584                         if (!EVP_PKEY_assign_RSA(pkey,
585                                 RSA_generate_key(newkey,0x10001,
586                                         req_cb,bio_err)))
587                                 goto end;
588                         }
589                 else
590 #endif
591 #ifndef NO_DSA
592                         if (pkey_type == TYPE_DSA)
593                         {
594                         if (!DSA_generate_key(dsa_params)) goto end;
595                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
596                         dsa_params=NULL;
597                         }
598 #endif
599
600                 app_RAND_write_file(randfile, bio_err);
601
602                 if (pkey == NULL) goto end;
603
604                 if (keyout == NULL)
605                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
606
607                 if (keyout == NULL)
608                         {
609                         BIO_printf(bio_err,"writing new private key to stdout\n");
610                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
611                         }
612                 else
613                         {
614                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
615                         if (BIO_write_filename(out,keyout) <= 0)
616                                 {
617                                 perror(keyout);
618                                 goto end;
619                                 }
620                         }
621
622                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
623                 if (p == NULL)
624                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
625                 if ((p != NULL) && (strcmp(p,"no") == 0))
626                         cipher=NULL;
627                 if (nodes) cipher=NULL;
628                 
629                 i=0;
630 loop:
631                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
632                         NULL,0,PEM_cb,passout))
633                         {
634                         if ((ERR_GET_REASON(ERR_peek_error()) ==
635                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
636                                 {
637                                 ERR_clear_error();
638                                 i++;
639                                 goto loop;
640                                 }
641                         goto end;
642                         }
643                 BIO_printf(bio_err,"-----\n");
644                 }
645
646         if (!newreq)
647                 {
648                 /* Since we are using a pre-existing certificate
649                  * request, the kludge 'format' info should not be
650                  * changed. */
651                 kludge= -1;
652                 if (infile == NULL)
653                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
654                 else
655                         {
656                         if (BIO_read_filename(in,infile) <= 0)
657                                 {
658                                 perror(infile);
659                                 goto end;
660                                 }
661                         }
662
663                 if      (informat == FORMAT_ASN1)
664                         req=d2i_X509_REQ_bio(in,NULL);
665                 else if (informat == FORMAT_PEM)
666                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
667                 else
668                         {
669                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
670                         goto end;
671                         }
672                 if (req == NULL)
673                         {
674                         BIO_printf(bio_err,"unable to load X509 request\n");
675                         goto end;
676                         }
677                 }
678
679         if (newreq || x509)
680                 {
681 #ifndef NO_DSA
682                 if (pkey->type == EVP_PKEY_DSA)
683                         digest=EVP_dss1();
684 #endif
685
686                 if (pkey == NULL)
687                         {
688                         BIO_printf(bio_err,"you need to specify a private key\n");
689                         goto end;
690                         }
691                 if (req == NULL)
692                         {
693                         req=X509_REQ_new();
694                         if (req == NULL)
695                                 {
696                                 goto end;
697                                 }
698
699                         i=make_REQ(req,pkey,!x509);
700                         if (kludge >= 0)
701                                 req->req_info->req_kludge=kludge;
702                         if (!i)
703                                 {
704                                 BIO_printf(bio_err,"problems making Certificate Request\n");
705                                 goto end;
706                                 }
707                         }
708                 if (x509)
709                         {
710                         EVP_PKEY *tmppkey;
711                         X509V3_CTX ext_ctx;
712                         if ((x509ss=X509_new()) == NULL) goto end;
713
714                         /* Set version to V3 */
715                         if(!X509_set_version(x509ss, 2)) goto end;
716                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
717
718                         X509_set_issuer_name(x509ss,
719                                 X509_REQ_get_subject_name(req));
720                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
721                         X509_gmtime_adj(X509_get_notAfter(x509ss),
722                                 (long)60*60*24*days);
723                         X509_set_subject_name(x509ss,
724                                 X509_REQ_get_subject_name(req));
725                         tmppkey = X509_REQ_get_pubkey(req);
726                         X509_set_pubkey(x509ss,tmppkey);
727                         EVP_PKEY_free(tmppkey);
728
729                         /* Set up V3 context struct */
730
731                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
732                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
733
734                         /* Add extensions */
735                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
736                                         &ext_ctx, extensions, x509ss))
737                             {
738                             BIO_printf(bio_err,
739                                        "Error Loading extension section %s\n",
740                                        extensions);
741                             goto end;
742                             }
743
744                         if (!(i=X509_sign(x509ss,pkey,digest)))
745                                 goto end;
746                         }
747                 else
748                         {
749                         X509V3_CTX ext_ctx;
750
751                         /* Set up V3 context struct */
752
753                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
754                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
755
756                         /* Add extensions */
757                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
758                                         &ext_ctx, req_exts, req))
759                             {
760                             BIO_printf(bio_err,
761                                        "Error Loading extension section %s\n",
762                                        req_exts);
763                             goto end;
764                             }
765                         if (!(i=X509_REQ_sign(req,pkey,digest)))
766                                 goto end;
767                         }
768                 }
769
770         if (verify && !x509)
771                 {
772                 int tmp=0;
773
774                 if (pkey == NULL)
775                         {
776                         pkey=X509_REQ_get_pubkey(req);
777                         tmp=1;
778                         if (pkey == NULL) goto end;
779                         }
780
781                 i=X509_REQ_verify(req,pkey);
782                 if (tmp) {
783                         EVP_PKEY_free(pkey);
784                         pkey=NULL;
785                 }
786
787                 if (i < 0)
788                         {
789                         goto end;
790                         }
791                 else if (i == 0)
792                         {
793                         BIO_printf(bio_err,"verify failure\n");
794                         }
795                 else /* if (i > 0) */
796                         BIO_printf(bio_err,"verify OK\n");
797                 }
798
799         if (noout && !text && !modulus)
800                 {
801                 ex=0;
802                 goto end;
803                 }
804
805         if (outfile == NULL)
806                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
807         else
808                 {
809                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
810                         i=(int)BIO_append_filename(out,outfile);
811                 else
812                         i=(int)BIO_write_filename(out,outfile);
813                 if (!i)
814                         {
815                         perror(outfile);
816                         goto end;
817                         }
818                 }
819
820         if (text)
821                 {
822                 if (x509)
823                         X509_print(out,x509ss);
824                 else    
825                         X509_REQ_print(out,req);
826                 }
827
828         if (modulus)
829                 {
830                 EVP_PKEY *pubkey;
831
832                 if (x509)
833                         pubkey=X509_get_pubkey(x509ss);
834                 else
835                         pubkey=X509_REQ_get_pubkey(req);
836                 if (pubkey == NULL)
837                         {
838                         fprintf(stdout,"Modulus=unavailable\n");
839                         goto end; 
840                         }
841                 fprintf(stdout,"Modulus=");
842 #ifndef NO_RSA
843                 if (pubkey->type == EVP_PKEY_RSA)
844                         BN_print(out,pubkey->pkey.rsa->n);
845                 else
846 #endif
847                         fprintf(stdout,"Wrong Algorithm type");
848                 fprintf(stdout,"\n");
849                 }
850
851         if (!noout && !x509)
852                 {
853                 if      (outformat == FORMAT_ASN1)
854                         i=i2d_X509_REQ_bio(out,req);
855                 else if (outformat == FORMAT_PEM)
856                         i=PEM_write_bio_X509_REQ(out,req);
857                 else    {
858                         BIO_printf(bio_err,"bad output format specified for outfile\n");
859                         goto end;
860                         }
861                 if (!i)
862                         {
863                         BIO_printf(bio_err,"unable to write X509 request\n");
864                         goto end;
865                         }
866                 }
867         if (!noout && x509 && (x509ss != NULL))
868                 {
869                 if      (outformat == FORMAT_ASN1)
870                         i=i2d_X509_bio(out,x509ss);
871                 else if (outformat == FORMAT_PEM)
872                         i=PEM_write_bio_X509(out,x509ss);
873                 else    {
874                         BIO_printf(bio_err,"bad output format specified for outfile\n");
875                         goto end;
876                         }
877                 if (!i)
878                         {
879                         BIO_printf(bio_err,"unable to write X509 certificate\n");
880                         goto end;
881                         }
882                 }
883         ex=0;
884 end:
885         if (ex)
886                 {
887                 ERR_print_errors(bio_err);
888                 }
889         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
890         BIO_free(in);
891         BIO_free(out);
892         EVP_PKEY_free(pkey);
893         X509_REQ_free(req);
894         X509_free(x509ss);
895         OBJ_cleanup();
896 #ifndef NO_DSA
897         if (dsa_params != NULL) DSA_free(dsa_params);
898 #endif
899         EXIT(ex);
900         }
901
902 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
903         {
904         int ret=0,i;
905         char no_prompt = 0;
906         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
907         char *tmp, *dn_sect,*attr_sect;
908
909         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
910         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
911
912         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
913         if (dn_sect == NULL)
914                 {
915                 BIO_printf(bio_err,"unable to find '%s' in config\n",
916                         DISTINGUISHED_NAME);
917                 goto err;
918                 }
919         dn_sk=CONF_get_section(req_conf,dn_sect);
920         if (dn_sk == NULL)
921                 {
922                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
923                 goto err;
924                 }
925
926         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
927         if (attr_sect == NULL)
928                 attr_sk=NULL;
929         else
930                 {
931                 attr_sk=CONF_get_section(req_conf,attr_sect);
932                 if (attr_sk == NULL)
933                         {
934                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
935                         goto err;
936                         }
937                 }
938
939         /* setup version number */
940         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
941
942         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
943         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
944         if(!i) goto err;
945
946         X509_REQ_set_pubkey(req,pkey);
947
948         ret=1;
949 err:
950         return(ret);
951         }
952
953
954 static int prompt_info(X509_REQ *req,
955                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
956                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
957         {
958         int i;
959         char *p,*q;
960         char buf[100];
961         int nid,min,max;
962         char *type,*def,*value;
963         CONF_VALUE *v;
964         X509_NAME *subj;
965         subj = X509_REQ_get_subject_name(req);
966         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
967         BIO_printf(bio_err,"into your certificate request.\n");
968         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
969         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
970         BIO_printf(bio_err,"For some fields there will be a default value,\n");
971         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
972         BIO_printf(bio_err,"-----\n");
973
974
975         if (sk_CONF_VALUE_num(dn_sk))
976                 {
977                 i= -1;
978 start:          for (;;)
979                         {
980                         i++;
981                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
982
983                         v=sk_CONF_VALUE_value(dn_sk,i);
984                         p=q=NULL;
985                         type=v->name;
986                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
987                                 !check_end(type,"_default") ||
988                                          !check_end(type,"_value")) continue;
989                         /* Skip past any leading X. X: X, etc to allow for
990                          * multiple instances 
991                          */
992                         for(p = v->name; *p ; p++) 
993                                 if ((*p == ':') || (*p == ',') ||
994                                                          (*p == '.')) {
995                                         p++;
996                                         if(*p) type = p;
997                                         break;
998                                 }
999                         /* If OBJ not recognised ignore it */
1000                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1001                         sprintf(buf,"%s_default",v->name);
1002                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1003                                 def="";
1004                                 
1005                         sprintf(buf,"%s_value",v->name);
1006                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1007                                 value=NULL;
1008
1009                         sprintf(buf,"%s_min",v->name);
1010                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
1011
1012                         sprintf(buf,"%s_max",v->name);
1013                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1014
1015                         if (!add_DN_object(subj,v->value,def,value,nid,
1016                                 min,max))
1017                                 return 0;
1018                         }
1019                 if (X509_NAME_entry_count(subj) == 0)
1020                         {
1021                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1022                         return 0;
1023                         }
1024
1025                 if (attribs)
1026                         {
1027                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1028                                 {
1029                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1030                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1031                                 }
1032
1033                         i= -1;
1034 start2:                 for (;;)
1035                                 {
1036                                 i++;
1037                                 if ((attr_sk == NULL) ||
1038                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1039                                         break;
1040
1041                                 v=sk_CONF_VALUE_value(attr_sk,i);
1042                                 type=v->name;
1043                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1044                                         goto start2;
1045
1046                                 sprintf(buf,"%s_default",type);
1047                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1048                                         == NULL)
1049                                         def="";
1050                                 
1051                                 sprintf(buf,"%s_value",type);
1052                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1053                                         == NULL)
1054                                         value=NULL;
1055
1056                                 sprintf(buf,"%s_min",type);
1057                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1058
1059                                 sprintf(buf,"%s_max",type);
1060                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1061
1062                                 if (!add_attribute_object(req,
1063                                         v->value,def,value,nid,min,max))
1064                                         return 0;
1065                                 }
1066                         }
1067                 }
1068         else
1069                 {
1070                 BIO_printf(bio_err,"No template, please set one up.\n");
1071                 return 0;
1072                 }
1073
1074         return 1;
1075
1076         }
1077
1078 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1079                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1080         {
1081         int i;
1082         char *p,*q;
1083         char *type;
1084         CONF_VALUE *v;
1085         X509_NAME *subj;
1086
1087         subj = X509_REQ_get_subject_name(req);
1088
1089         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1090                 {
1091                 v=sk_CONF_VALUE_value(dn_sk,i);
1092                 p=q=NULL;
1093                 type=v->name;
1094                 /* Skip past any leading X. X: X, etc to allow for
1095                  * multiple instances 
1096                  */
1097                 for(p = v->name; *p ; p++) 
1098                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1099                                 p++;
1100                                 if(*p) type = p;
1101                                 break;
1102                         }
1103                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1104                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1105
1106                 }
1107
1108                 if (!X509_NAME_entry_count(subj))
1109                         {
1110                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1111                         return 0;
1112                         }
1113                 if (attribs)
1114                         {
1115                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1116                                 {
1117                                 v=sk_CONF_VALUE_value(attr_sk,i);
1118                                 if(!X509_REQ_radd_attr_by_txt(req, v->name, MBSTRING_ASC,
1119                                         (unsigned char *)v->value, -1)) return 0;
1120                                 }
1121                         }
1122         return 1;
1123         }
1124
1125
1126 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1127              int nid, int min, int max)
1128         {
1129         int i,ret=0;
1130         MS_STATIC char buf[1024];
1131 start:
1132         BIO_printf(bio_err,"%s [%s]:",text,def);
1133         (void)BIO_flush(bio_err);
1134         if (value != NULL)
1135                 {
1136                 strcpy(buf,value);
1137                 strcat(buf,"\n");
1138                 BIO_printf(bio_err,"%s\n",value);
1139                 }
1140         else
1141                 {
1142                 buf[0]='\0';
1143                 fgets(buf,1024,stdin);
1144                 }
1145
1146         if (buf[0] == '\0') return(0);
1147         else if (buf[0] == '\n')
1148                 {
1149                 if ((def == NULL) || (def[0] == '\0'))
1150                         return(1);
1151                 strcpy(buf,def);
1152                 strcat(buf,"\n");
1153                 }
1154         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1155
1156         i=strlen(buf);
1157         if (buf[i-1] != '\n')
1158                 {
1159                 BIO_printf(bio_err,"weird input :-(\n");
1160                 return(0);
1161                 }
1162         buf[--i]='\0';
1163
1164 #ifdef CHARSET_EBCDIC
1165         ebcdic2ascii(buf, buf, i);
1166 #endif
1167         if(!req_check_len(i, min, max)) goto start;
1168         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1169                                 (unsigned char *) buf, -1,-1,0)) goto err;
1170         ret=1;
1171 err:
1172         return(ret);
1173         }
1174
1175 static int add_attribute_object(X509_REQ *req, char *text,
1176                                 char *def, char *value, int nid, int min,
1177                                 int max)
1178         {
1179         int i;
1180         static char buf[1024];
1181
1182 start:
1183         BIO_printf(bio_err,"%s [%s]:",text,def);
1184         (void)BIO_flush(bio_err);
1185         if (value != NULL)
1186                 {
1187                 strcpy(buf,value);
1188                 strcat(buf,"\n");
1189                 BIO_printf(bio_err,"%s\n",value);
1190                 }
1191         else
1192                 {
1193                 buf[0]='\0';
1194                 fgets(buf,1024,stdin);
1195                 }
1196
1197         if (buf[0] == '\0') return(0);
1198         else if (buf[0] == '\n')
1199                 {
1200                 if ((def == NULL) || (def[0] == '\0'))
1201                         return(1);
1202                 strcpy(buf,def);
1203                 strcat(buf,"\n");
1204                 }
1205         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1206
1207         i=strlen(buf);
1208         if (buf[i-1] != '\n')
1209                 {
1210                 BIO_printf(bio_err,"weird input :-(\n");
1211                 return(0);
1212                 }
1213         buf[--i]='\0';
1214         if(!req_check_len(i, min, max)) goto start;
1215
1216         if(!X509_REQ_radd_attr_by_NID(req, nid, MBSTRING_ASC,
1217                                         (unsigned char *)buf, -1)) {
1218                 BIO_printf(bio_err, "Error adding attribute\n");
1219                 ERR_print_errors(bio_err);
1220                 goto err;
1221         }
1222
1223         return(1);
1224 err:
1225         return(0);
1226         }
1227
1228 #ifndef NO_RSA
1229 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1230         {
1231         char c='*';
1232
1233         if (p == 0) c='.';
1234         if (p == 1) c='+';
1235         if (p == 2) c='*';
1236         if (p == 3) c='\n';
1237         BIO_write((BIO *)arg,&c,1);
1238         (void)BIO_flush((BIO *)arg);
1239 #ifdef LINT
1240         p=n;
1241 #endif
1242         }
1243 #endif
1244
1245 static int req_check_len(int len, int min, int max)
1246         {
1247         if (len < min)
1248                 {
1249                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1250                 return(0);
1251                 }
1252         if ((max != 0) && (len > max))
1253                 {
1254                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1255                 return(0);
1256                 }
1257         return(1);
1258         }
1259
1260 /* Check if the end of a string matches 'end' */
1261 static int check_end(char *str, char *end)
1262 {
1263         int elen, slen; 
1264         char *tmp;
1265         elen = strlen(end);
1266         slen = strlen(str);
1267         if(elen > slen) return 1;
1268         tmp = str + slen - elen;
1269         return strcmp(tmp, end);
1270 }
1271
1272 static int add_oid_section(LHASH *conf)
1273 {       
1274         char *p;
1275         STACK_OF(CONF_VALUE) *sktmp;
1276         CONF_VALUE *cnf;
1277         int i;
1278         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1279         if(!(sktmp = CONF_get_section(conf, p))) {
1280                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1281                 return 0;
1282         }
1283         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1284                 cnf = sk_CONF_VALUE_value(sktmp, i);
1285                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1286                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1287                                                          cnf->name, cnf->value);
1288                         return 0;
1289                 }
1290         }
1291         return 1;
1292 }