Finish off the X509_ATTRIBUTE string stuff.
[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 argc, char **argv)
140         {
141 #ifndef NO_DSA
142         DSA *dsa_params=NULL;
143 #endif
144         int ex=1,x509=0,days=30;
145         X509 *x509ss=NULL;
146         X509_REQ *req=NULL;
147         EVP_PKEY *pkey=NULL;
148         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
149         BIO *in=NULL,*out=NULL;
150         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
151         int nodes=0,kludge=0;
152         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
153         char *extensions = NULL;
154         char *req_exts = NULL;
155         EVP_CIPHER *cipher=NULL;
156         int modulus=0;
157         char *passin = NULL, *passout = NULL;
158         char *p;
159         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
160 #ifndef MONOLITH
161         MS_STATIC char config_name[256];
162 #endif
163
164         req_conf = NULL;
165 #ifndef NO_DES
166         cipher=EVP_des_ede3_cbc();
167 #endif
168         apps_startup();
169
170         if (bio_err == NULL)
171                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
172                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
173
174         infile=NULL;
175         outfile=NULL;
176         informat=FORMAT_PEM;
177         outformat=FORMAT_PEM;
178
179         prog=argv[0];
180         argc--;
181         argv++;
182         while (argc >= 1)
183                 {
184                 if      (strcmp(*argv,"-inform") == 0)
185                         {
186                         if (--argc < 1) goto bad;
187                         informat=str2fmt(*(++argv));
188                         }
189                 else if (strcmp(*argv,"-outform") == 0)
190                         {
191                         if (--argc < 1) goto bad;
192                         outformat=str2fmt(*(++argv));
193                         }
194                 else if (strcmp(*argv,"-key") == 0)
195                         {
196                         if (--argc < 1) goto bad;
197                         keyfile= *(++argv);
198                         }
199                 else if (strcmp(*argv,"-new") == 0)
200                         {
201                         pkey_type=TYPE_RSA;
202                         newreq=1;
203                         }
204                 else if (strcmp(*argv,"-config") == 0)
205                         {       
206                         if (--argc < 1) goto bad;
207                         template= *(++argv);
208                         }
209                 else if (strcmp(*argv,"-keyform") == 0)
210                         {
211                         if (--argc < 1) goto bad;
212                         keyform=str2fmt(*(++argv));
213                         }
214                 else if (strcmp(*argv,"-in") == 0)
215                         {
216                         if (--argc < 1) goto bad;
217                         infile= *(++argv);
218                         }
219                 else if (strcmp(*argv,"-out") == 0)
220                         {
221                         if (--argc < 1) goto bad;
222                         outfile= *(++argv);
223                         }
224                 else if (strcmp(*argv,"-keyout") == 0)
225                         {
226                         if (--argc < 1) goto bad;
227                         keyout= *(++argv);
228                         }
229                 else if (strcmp(*argv,"-passin") == 0)
230                         {
231                         if (--argc < 1) goto bad;
232                         passin= *(++argv);
233                         }
234                 else if (strcmp(*argv,"-envpassin") == 0)
235                         {
236                         if (--argc < 1) goto bad;
237                                 if(!(passin= getenv(*(++argv))))
238                                 {
239                                 BIO_printf(bio_err,
240                                  "Can't read environment variable %s\n",
241                                                                 *argv);
242                                 badops = 1;
243                                 }
244                         }
245                 else if (strcmp(*argv,"-envpassout") == 0)
246                         {
247                         if (--argc < 1) goto bad;
248                         if(!(passout= getenv(*(++argv))))
249                                 {
250                                 BIO_printf(bio_err,
251                                  "Can't read environment variable %s\n",
252                                                                 *argv);
253                                 badops = 1;
254                                 }
255                         }
256                 else if (strcmp(*argv,"-passout") == 0)
257                         {
258                         if (--argc < 1) goto bad;
259                         passout= *(++argv);
260                         }
261                 else if (strcmp(*argv,"-newkey") == 0)
262                         {
263                         int is_numeric;
264
265                         if (--argc < 1) goto bad;
266                         p= *(++argv);
267                         is_numeric = p[0] >= '0' && p[0] <= '9';
268                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
269                                 {
270                                 pkey_type=TYPE_RSA;
271                                 if(!is_numeric)
272                                     p+=4;
273                                 newkey= atoi(p);
274                                 }
275                         else
276 #ifndef NO_DSA
277                                 if (strncmp("dsa:",p,4) == 0)
278                                 {
279                                 X509 *xtmp=NULL;
280                                 EVP_PKEY *dtmp;
281
282                                 pkey_type=TYPE_DSA;
283                                 p+=4;
284                                 if ((in=BIO_new_file(p,"r")) == NULL)
285                                         {
286                                         perror(p);
287                                         goto end;
288                                         }
289                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
290                                         {
291                                         ERR_clear_error();
292                                         (void)BIO_reset(in);
293                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
294                                                 {
295                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
296                                                 goto end;
297                                                 }
298
299                                         dtmp=X509_get_pubkey(xtmp);
300                                         if (dtmp->type == EVP_PKEY_DSA)
301                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
302                                         EVP_PKEY_free(dtmp);
303                                         X509_free(xtmp);
304                                         if (dsa_params == NULL)
305                                                 {
306                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
307                                                 goto end;
308                                                 }
309                                         }
310                                 BIO_free(in);
311                                 newkey=BN_num_bits(dsa_params->p);
312                                 in=NULL;
313                                 }
314                         else 
315 #endif
316 #ifndef NO_DH
317                                 if (strncmp("dh:",p,4) == 0)
318                                 {
319                                 pkey_type=TYPE_DH;
320                                 p+=3;
321                                 }
322                         else
323 #endif
324                                 pkey_type=TYPE_RSA;
325
326                         newreq=1;
327                         }
328                 else if (strcmp(*argv,"-modulus") == 0)
329                         modulus=1;
330                 else if (strcmp(*argv,"-verify") == 0)
331                         verify=1;
332                 else if (strcmp(*argv,"-nodes") == 0)
333                         nodes=1;
334                 else if (strcmp(*argv,"-noout") == 0)
335                         noout=1;
336                 else if (strcmp(*argv,"-text") == 0)
337                         text=1;
338                 else if (strcmp(*argv,"-x509") == 0)
339                         x509=1;
340                 else if (strcmp(*argv,"-asn1-kludge") == 0)
341                         kludge=1;
342                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
343                         kludge=0;
344                 else if (strcmp(*argv,"-days") == 0)
345                         {
346                         if (--argc < 1) goto bad;
347                         days= atoi(*(++argv));
348                         if (days == 0) days=30;
349                         }
350                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
351                         {
352                         /* ok */
353                         digest=md_alg;
354                         }
355                 else if (strcmp(*argv,"-extensions") == 0)
356                         {
357                         if (--argc < 1) goto bad;
358                         extensions = *(++argv);
359                         }
360                 else if (strcmp(*argv,"-reqexts") == 0)
361                         {
362                         if (--argc < 1) goto bad;
363                         req_exts = *(++argv);
364                         }
365                 else
366                         {
367                         BIO_printf(bio_err,"unknown option %s\n",*argv);
368                         badops=1;
369                         break;
370                         }
371                 argc--;
372                 argv++;
373                 }
374
375         if (badops)
376                 {
377 bad:
378                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
379                 BIO_printf(bio_err,"where options  are\n");
380                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
381                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
382                 BIO_printf(bio_err," -in arg        input file\n");
383                 BIO_printf(bio_err," -out arg       output file\n");
384                 BIO_printf(bio_err," -text          text form of request\n");
385                 BIO_printf(bio_err," -noout         do not output REQ\n");
386                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
387                 BIO_printf(bio_err," -modulus       RSA modulus\n");
388                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
389                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
390                 BIO_printf(bio_err," -keyform arg   key file format\n");
391                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
392                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
393                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
394
395                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
396                 BIO_printf(bio_err," -config file   request template file.\n");
397                 BIO_printf(bio_err," -new           new request.\n");
398                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
399                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
400                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
401                 BIO_printf(bio_err,"                have been reported as requiring\n");
402                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
403                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
404                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
405                 goto end;
406                 }
407
408         ERR_load_crypto_strings();
409
410 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
411         /* Lets load up our environment a little */
412         p=getenv("OPENSSL_CONF");
413         if (p == NULL)
414                 p=getenv("SSLEAY_CONF");
415         if (p == NULL)
416                 {
417                 strcpy(config_name,X509_get_default_cert_area());
418 #ifndef VMS
419                 strcat(config_name,"/");
420 #endif
421                 strcat(config_name,OPENSSL_CONF);
422                 p=config_name;
423                 }
424         default_config_file=p;
425         config=CONF_load(config,p,NULL);
426 #endif
427
428         if (template != NULL)
429                 {
430                 long errline;
431
432                 BIO_printf(bio_err,"Using configuration from %s\n",template);
433                 req_conf=CONF_load(NULL,template,&errline);
434                 if (req_conf == NULL)
435                         {
436                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
437                         goto end;
438                         }
439                 }
440         else
441                 {
442                 req_conf=config;
443                 BIO_printf(bio_err,"Using configuration from %s\n",
444                         default_config_file);
445                 if (req_conf == NULL)
446                         {
447                         BIO_printf(bio_err,"Unable to load config info\n");
448                         }
449                 }
450
451         if (req_conf != NULL)
452                 {
453                 p=CONF_get_string(req_conf,NULL,"oid_file");
454                 if (p != NULL)
455                         {
456                         BIO *oid_bio;
457
458                         oid_bio=BIO_new_file(p,"r");
459                         if (oid_bio == NULL) 
460                                 {
461                                 /*
462                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
463                                 ERR_print_errors(bio_err);
464                                 */
465                                 }
466                         else
467                                 {
468                                 OBJ_create_objects(oid_bio);
469                                 BIO_free(oid_bio);
470                                 }
471                         }
472                 }
473                 if(!add_oid_section(req_conf)) goto end;
474
475         if ((md_alg == NULL) &&
476                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
477                 {
478                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
479                         digest=md_alg;
480                 }
481
482         if(!extensions)
483                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
484         if(extensions) {
485                 /* Check syntax of file */
486                 X509V3_CTX ctx;
487                 X509V3_set_ctx_test(&ctx);
488                 X509V3_set_conf_lhash(&ctx, req_conf);
489                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
490                         BIO_printf(bio_err,
491                          "Error Loading extension section %s\n", extensions);
492                         goto end;
493                 }
494         }
495
496         if(!passin)
497                 passin = CONF_get_string(req_conf, SECTION, "input_password");
498
499         if(!passout)
500                 passout = CONF_get_string(req_conf, SECTION, "output_password");
501
502         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
503
504         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
505                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
506                 goto end;
507         }
508
509         if(!req_exts)
510                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
511         if(req_exts) {
512                 /* Check syntax of file */
513                 X509V3_CTX ctx;
514                 X509V3_set_ctx_test(&ctx);
515                 X509V3_set_conf_lhash(&ctx, req_conf);
516                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
517                         BIO_printf(bio_err,
518                          "Error Loading request extension section %s\n",
519                                                                 req_exts);
520                         goto end;
521                 }
522         }
523
524         in=BIO_new(BIO_s_file());
525         out=BIO_new(BIO_s_file());
526         if ((in == NULL) || (out == NULL))
527                 goto end;
528
529         if (keyfile != NULL)
530                 {
531                 if (BIO_read_filename(in,keyfile) <= 0)
532                         {
533                         perror(keyfile);
534                         goto end;
535                         }
536
537                 if (keyform == FORMAT_ASN1)
538                         pkey=d2i_PrivateKey_bio(in,NULL);
539                 else if (keyform == FORMAT_PEM)
540                         {
541                         pkey=PEM_read_bio_PrivateKey(in,NULL,PEM_cb,passin);
542                         }
543                 else
544                         {
545                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
546                         goto end;
547                         }
548
549                 if (pkey == NULL)
550                         {
551                         BIO_printf(bio_err,"unable to load Private key\n");
552                         goto end;
553                         }
554                 }
555
556         if (newreq && (pkey == NULL))
557                 {
558                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
559                 app_RAND_load_file(randfile, bio_err, 0);
560         
561                 if (newkey <= 0)
562                         {
563                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
564                         if (newkey <= 0)
565                                 newkey=DEFAULT_KEY_LENGTH;
566                         }
567
568                 if (newkey < MIN_KEY_LENGTH)
569                         {
570                         BIO_printf(bio_err,"private key length is too short,\n");
571                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
572                         goto end;
573                         }
574                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
575                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
576
577                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
578
579 #ifndef NO_RSA
580                 if (pkey_type == TYPE_RSA)
581                         {
582                         if (!EVP_PKEY_assign_RSA(pkey,
583                                 RSA_generate_key(newkey,0x10001,
584                                         req_cb,bio_err)))
585                                 goto end;
586                         }
587                 else
588 #endif
589 #ifndef NO_DSA
590                         if (pkey_type == TYPE_DSA)
591                         {
592                         if (!DSA_generate_key(dsa_params)) goto end;
593                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
594                         dsa_params=NULL;
595                         }
596 #endif
597
598                 app_RAND_write_file(randfile, bio_err);
599
600                 if (pkey == NULL) goto end;
601
602                 if (keyout == NULL)
603                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
604
605                 if (keyout == NULL)
606                         {
607                         BIO_printf(bio_err,"writing new private key to stdout\n");
608                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
609                         }
610                 else
611                         {
612                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
613                         if (BIO_write_filename(out,keyout) <= 0)
614                                 {
615                                 perror(keyout);
616                                 goto end;
617                                 }
618                         }
619
620                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
621                 if (p == NULL)
622                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
623                 if ((p != NULL) && (strcmp(p,"no") == 0))
624                         cipher=NULL;
625                 if (nodes) cipher=NULL;
626                 
627                 i=0;
628 loop:
629                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
630                         NULL,0,PEM_cb,passout))
631                         {
632                         if ((ERR_GET_REASON(ERR_peek_error()) ==
633                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
634                                 {
635                                 ERR_clear_error();
636                                 i++;
637                                 goto loop;
638                                 }
639                         goto end;
640                         }
641                 BIO_printf(bio_err,"-----\n");
642                 }
643
644         if (!newreq)
645                 {
646                 /* Since we are using a pre-existing certificate
647                  * request, the kludge 'format' info should not be
648                  * changed. */
649                 kludge= -1;
650                 if (infile == NULL)
651                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
652                 else
653                         {
654                         if (BIO_read_filename(in,infile) <= 0)
655                                 {
656                                 perror(infile);
657                                 goto end;
658                                 }
659                         }
660
661                 if      (informat == FORMAT_ASN1)
662                         req=d2i_X509_REQ_bio(in,NULL);
663                 else if (informat == FORMAT_PEM)
664                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
665                 else
666                         {
667                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
668                         goto end;
669                         }
670                 if (req == NULL)
671                         {
672                         BIO_printf(bio_err,"unable to load X509 request\n");
673                         goto end;
674                         }
675                 }
676
677         if (newreq || x509)
678                 {
679 #ifndef NO_DSA
680                 if (pkey->type == EVP_PKEY_DSA)
681                         digest=EVP_dss1();
682 #endif
683
684                 if (pkey == NULL)
685                         {
686                         BIO_printf(bio_err,"you need to specify a private key\n");
687                         goto end;
688                         }
689                 if (req == NULL)
690                         {
691                         req=X509_REQ_new();
692                         if (req == NULL)
693                                 {
694                                 goto end;
695                                 }
696
697                         i=make_REQ(req,pkey,!x509);
698                         if (kludge >= 0)
699                                 req->req_info->req_kludge=kludge;
700                         if (!i)
701                                 {
702                                 BIO_printf(bio_err,"problems making Certificate Request\n");
703                                 goto end;
704                                 }
705                         }
706                 if (x509)
707                         {
708                         EVP_PKEY *tmppkey;
709                         X509V3_CTX ext_ctx;
710                         if ((x509ss=X509_new()) == NULL) goto end;
711
712                         /* Set version to V3 */
713                         if(!X509_set_version(x509ss, 2)) goto end;
714                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
715
716                         X509_set_issuer_name(x509ss,
717                                 X509_REQ_get_subject_name(req));
718                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
719                         X509_gmtime_adj(X509_get_notAfter(x509ss),
720                                 (long)60*60*24*days);
721                         X509_set_subject_name(x509ss,
722                                 X509_REQ_get_subject_name(req));
723                         tmppkey = X509_REQ_get_pubkey(req);
724                         X509_set_pubkey(x509ss,tmppkey);
725                         EVP_PKEY_free(tmppkey);
726
727                         /* Set up V3 context struct */
728
729                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
730                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
731
732                         /* Add extensions */
733                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
734                                         &ext_ctx, extensions, x509ss))
735                             {
736                             BIO_printf(bio_err,
737                                        "Error Loading extension section %s\n",
738                                        extensions);
739                             goto end;
740                             }
741
742                         if (!(i=X509_sign(x509ss,pkey,digest)))
743                                 goto end;
744                         }
745                 else
746                         {
747                         X509V3_CTX ext_ctx;
748
749                         /* Set up V3 context struct */
750
751                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
752                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
753
754                         /* Add extensions */
755                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
756                                         &ext_ctx, req_exts, req))
757                             {
758                             BIO_printf(bio_err,
759                                        "Error Loading extension section %s\n",
760                                        req_exts);
761                             goto end;
762                             }
763                         if (!(i=X509_REQ_sign(req,pkey,digest)))
764                                 goto end;
765                         }
766                 }
767
768         if (verify && !x509)
769                 {
770                 int tmp=0;
771
772                 if (pkey == NULL)
773                         {
774                         pkey=X509_REQ_get_pubkey(req);
775                         tmp=1;
776                         if (pkey == NULL) goto end;
777                         }
778
779                 i=X509_REQ_verify(req,pkey);
780                 if (tmp) {
781                         EVP_PKEY_free(pkey);
782                         pkey=NULL;
783                 }
784
785                 if (i < 0)
786                         {
787                         goto end;
788                         }
789                 else if (i == 0)
790                         {
791                         BIO_printf(bio_err,"verify failure\n");
792                         }
793                 else /* if (i > 0) */
794                         BIO_printf(bio_err,"verify OK\n");
795                 }
796
797         if (noout && !text && !modulus)
798                 {
799                 ex=0;
800                 goto end;
801                 }
802
803         if (outfile == NULL)
804                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
805         else
806                 {
807                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
808                         i=(int)BIO_append_filename(out,outfile);
809                 else
810                         i=(int)BIO_write_filename(out,outfile);
811                 if (!i)
812                         {
813                         perror(outfile);
814                         goto end;
815                         }
816                 }
817
818         if (text)
819                 {
820                 if (x509)
821                         X509_print(out,x509ss);
822                 else    
823                         X509_REQ_print(out,req);
824                 }
825
826         if (modulus)
827                 {
828                 EVP_PKEY *pubkey;
829
830                 if (x509)
831                         pubkey=X509_get_pubkey(x509ss);
832                 else
833                         pubkey=X509_REQ_get_pubkey(req);
834                 if (pubkey == NULL)
835                         {
836                         fprintf(stdout,"Modulus=unavailable\n");
837                         goto end; 
838                         }
839                 fprintf(stdout,"Modulus=");
840 #ifndef NO_RSA
841                 if (pubkey->type == EVP_PKEY_RSA)
842                         BN_print(out,pubkey->pkey.rsa->n);
843                 else
844 #endif
845                         fprintf(stdout,"Wrong Algorithm type");
846                 fprintf(stdout,"\n");
847                 }
848
849         if (!noout && !x509)
850                 {
851                 if      (outformat == FORMAT_ASN1)
852                         i=i2d_X509_REQ_bio(out,req);
853                 else if (outformat == FORMAT_PEM)
854                         i=PEM_write_bio_X509_REQ(out,req);
855                 else    {
856                         BIO_printf(bio_err,"bad output format specified for outfile\n");
857                         goto end;
858                         }
859                 if (!i)
860                         {
861                         BIO_printf(bio_err,"unable to write X509 request\n");
862                         goto end;
863                         }
864                 }
865         if (!noout && x509 && (x509ss != NULL))
866                 {
867                 if      (outformat == FORMAT_ASN1)
868                         i=i2d_X509_bio(out,x509ss);
869                 else if (outformat == FORMAT_PEM)
870                         i=PEM_write_bio_X509(out,x509ss);
871                 else    {
872                         BIO_printf(bio_err,"bad output format specified for outfile\n");
873                         goto end;
874                         }
875                 if (!i)
876                         {
877                         BIO_printf(bio_err,"unable to write X509 certificate\n");
878                         goto end;
879                         }
880                 }
881         ex=0;
882 end:
883         if (ex)
884                 {
885                 ERR_print_errors(bio_err);
886                 }
887         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
888         BIO_free(in);
889         BIO_free(out);
890         EVP_PKEY_free(pkey);
891         X509_REQ_free(req);
892         X509_free(x509ss);
893         OBJ_cleanup();
894 #ifndef NO_DSA
895         if (dsa_params != NULL) DSA_free(dsa_params);
896 #endif
897         EXIT(ex);
898         }
899
900 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
901         {
902         int ret=0,i;
903         char no_prompt = 0;
904         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
905         char *tmp, *dn_sect,*attr_sect;
906
907         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
908         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
909
910         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
911         if (dn_sect == NULL)
912                 {
913                 BIO_printf(bio_err,"unable to find '%s' in config\n",
914                         DISTINGUISHED_NAME);
915                 goto err;
916                 }
917         dn_sk=CONF_get_section(req_conf,dn_sect);
918         if (dn_sk == NULL)
919                 {
920                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
921                 goto err;
922                 }
923
924         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
925         if (attr_sect == NULL)
926                 attr_sk=NULL;
927         else
928                 {
929                 attr_sk=CONF_get_section(req_conf,attr_sect);
930                 if (attr_sk == NULL)
931                         {
932                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
933                         goto err;
934                         }
935                 }
936
937         /* setup version number */
938         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
939
940         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
941         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
942         if(!i) goto err;
943
944         X509_REQ_set_pubkey(req,pkey);
945
946         ret=1;
947 err:
948         return(ret);
949         }
950
951
952 static int prompt_info(X509_REQ *req,
953                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
954                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
955         {
956         int i;
957         char *p,*q;
958         char buf[100];
959         int nid,min,max;
960         char *type,*def,*value;
961         CONF_VALUE *v;
962         X509_NAME *subj;
963         subj = X509_REQ_get_subject_name(req);
964         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
965         BIO_printf(bio_err,"into your certificate request.\n");
966         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
967         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
968         BIO_printf(bio_err,"For some fields there will be a default value,\n");
969         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
970         BIO_printf(bio_err,"-----\n");
971
972
973         if (sk_CONF_VALUE_num(dn_sk))
974                 {
975                 i= -1;
976 start:          for (;;)
977                         {
978                         i++;
979                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
980
981                         v=sk_CONF_VALUE_value(dn_sk,i);
982                         p=q=NULL;
983                         type=v->name;
984                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
985                                 !check_end(type,"_default") ||
986                                          !check_end(type,"_value")) continue;
987                         /* Skip past any leading X. X: X, etc to allow for
988                          * multiple instances 
989                          */
990                         for(p = v->name; *p ; p++) 
991                                 if ((*p == ':') || (*p == ',') ||
992                                                          (*p == '.')) {
993                                         p++;
994                                         if(*p) type = p;
995                                         break;
996                                 }
997                         /* If OBJ not recognised ignore it */
998                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
999                         sprintf(buf,"%s_default",v->name);
1000                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1001                                 def="";
1002                                 
1003                         sprintf(buf,"%s_value",v->name);
1004                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1005                                 value=NULL;
1006
1007                         sprintf(buf,"%s_min",v->name);
1008                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
1009
1010                         sprintf(buf,"%s_max",v->name);
1011                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1012
1013                         if (!add_DN_object(subj,v->value,def,value,nid,
1014                                 min,max))
1015                                 return 0;
1016                         }
1017                 if (X509_NAME_entry_count(subj) == 0)
1018                         {
1019                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1020                         return 0;
1021                         }
1022
1023                 if (attribs)
1024                         {
1025                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1026                                 {
1027                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1028                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1029                                 }
1030
1031                         i= -1;
1032 start2:                 for (;;)
1033                                 {
1034                                 i++;
1035                                 if ((attr_sk == NULL) ||
1036                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1037                                         break;
1038
1039                                 v=sk_CONF_VALUE_value(attr_sk,i);
1040                                 type=v->name;
1041                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1042                                         goto start2;
1043
1044                                 sprintf(buf,"%s_default",type);
1045                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1046                                         == NULL)
1047                                         def="";
1048                                 
1049                                 sprintf(buf,"%s_value",type);
1050                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1051                                         == NULL)
1052                                         value=NULL;
1053
1054                                 sprintf(buf,"%s_min",type);
1055                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1056
1057                                 sprintf(buf,"%s_max",type);
1058                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1059
1060                                 if (!add_attribute_object(req,
1061                                         v->value,def,value,nid,min,max))
1062                                         return 0;
1063                                 }
1064                         }
1065                 }
1066         else
1067                 {
1068                 BIO_printf(bio_err,"No template, please set one up.\n");
1069                 return 0;
1070                 }
1071
1072         return 1;
1073
1074         }
1075
1076 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1077                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1078         {
1079         int i;
1080         char *p,*q;
1081         char *type;
1082         CONF_VALUE *v;
1083         X509_NAME *subj;
1084
1085         subj = X509_REQ_get_subject_name(req);
1086
1087         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1088                 {
1089                 v=sk_CONF_VALUE_value(dn_sk,i);
1090                 p=q=NULL;
1091                 type=v->name;
1092                 /* Skip past any leading X. X: X, etc to allow for
1093                  * multiple instances 
1094                  */
1095                 for(p = v->name; *p ; p++) 
1096                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1097                                 p++;
1098                                 if(*p) type = p;
1099                                 break;
1100                         }
1101                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1102                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1103
1104                 }
1105
1106                 if (!X509_NAME_entry_count(subj))
1107                         {
1108                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1109                         return 0;
1110                         }
1111                 if (attribs)
1112                         {
1113                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1114                                 {
1115                                 v=sk_CONF_VALUE_value(attr_sk,i);
1116                                 if(!X509_REQ_radd_attr_by_txt(req, v->name, MBSTRING_ASC,
1117                                         (unsigned char *)v->value, -1)) return 0;
1118                                 }
1119                         }
1120         return 1;
1121         }
1122
1123
1124 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1125              int nid, int min, int max)
1126         {
1127         int i,ret=0;
1128         MS_STATIC char buf[1024];
1129 start:
1130         BIO_printf(bio_err,"%s [%s]:",text,def);
1131         (void)BIO_flush(bio_err);
1132         if (value != NULL)
1133                 {
1134                 strcpy(buf,value);
1135                 strcat(buf,"\n");
1136                 BIO_printf(bio_err,"%s\n",value);
1137                 }
1138         else
1139                 {
1140                 buf[0]='\0';
1141                 fgets(buf,1024,stdin);
1142                 }
1143
1144         if (buf[0] == '\0') return(0);
1145         else if (buf[0] == '\n')
1146                 {
1147                 if ((def == NULL) || (def[0] == '\0'))
1148                         return(1);
1149                 strcpy(buf,def);
1150                 strcat(buf,"\n");
1151                 }
1152         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1153
1154         i=strlen(buf);
1155         if (buf[i-1] != '\n')
1156                 {
1157                 BIO_printf(bio_err,"weird input :-(\n");
1158                 return(0);
1159                 }
1160         buf[--i]='\0';
1161
1162 #ifdef CHARSET_EBCDIC
1163         ebcdic2ascii(buf, buf, i);
1164 #endif
1165         if(!req_check_len(i, min, max)) goto start;
1166         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1167                                 (unsigned char *) buf, -1,-1,0)) goto err;
1168         ret=1;
1169 err:
1170         return(ret);
1171         }
1172
1173 static int add_attribute_object(X509_REQ *req, char *text,
1174                                 char *def, char *value, int nid, int min,
1175                                 int max)
1176         {
1177         int i;
1178         static char buf[1024];
1179
1180 start:
1181         BIO_printf(bio_err,"%s [%s]:",text,def);
1182         (void)BIO_flush(bio_err);
1183         if (value != NULL)
1184                 {
1185                 strcpy(buf,value);
1186                 strcat(buf,"\n");
1187                 BIO_printf(bio_err,"%s\n",value);
1188                 }
1189         else
1190                 {
1191                 buf[0]='\0';
1192                 fgets(buf,1024,stdin);
1193                 }
1194
1195         if (buf[0] == '\0') return(0);
1196         else if (buf[0] == '\n')
1197                 {
1198                 if ((def == NULL) || (def[0] == '\0'))
1199                         return(1);
1200                 strcpy(buf,def);
1201                 strcat(buf,"\n");
1202                 }
1203         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1204
1205         i=strlen(buf);
1206         if (buf[i-1] != '\n')
1207                 {
1208                 BIO_printf(bio_err,"weird input :-(\n");
1209                 return(0);
1210                 }
1211         buf[--i]='\0';
1212         if(!req_check_len(i, min, max)) goto start;
1213
1214         if(!X509_REQ_radd_attr_by_NID(req, nid, MBSTRING_ASC,
1215                                         (unsigned char *)buf, -1)) {
1216                 BIO_printf(bio_err, "Error adding attribute\n");
1217                 ERR_print_errors(bio_err);
1218                 goto err;
1219         }
1220
1221         return(1);
1222 err:
1223         return(0);
1224         }
1225
1226 #ifndef NO_RSA
1227 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1228         {
1229         char c='*';
1230
1231         if (p == 0) c='.';
1232         if (p == 1) c='+';
1233         if (p == 2) c='*';
1234         if (p == 3) c='\n';
1235         BIO_write((BIO *)arg,&c,1);
1236         (void)BIO_flush((BIO *)arg);
1237 #ifdef LINT
1238         p=n;
1239 #endif
1240         }
1241 #endif
1242
1243 static int req_check_len(int len, int min, int max)
1244         {
1245         if (len < min)
1246                 {
1247                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1248                 return(0);
1249                 }
1250         if ((max != 0) && (len > max))
1251                 {
1252                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1253                 return(0);
1254                 }
1255         return(1);
1256         }
1257
1258 /* Check if the end of a string matches 'end' */
1259 static int check_end(char *str, char *end)
1260 {
1261         int elen, slen; 
1262         char *tmp;
1263         elen = strlen(end);
1264         slen = strlen(str);
1265         if(elen > slen) return 1;
1266         tmp = str + slen - elen;
1267         return strcmp(tmp, end);
1268 }
1269
1270 static int add_oid_section(LHASH *conf)
1271 {       
1272         char *p;
1273         STACK_OF(CONF_VALUE) *sktmp;
1274         CONF_VALUE *cnf;
1275         int i;
1276         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1277         if(!(sktmp = CONF_get_section(conf, p))) {
1278                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1279                 return 0;
1280         }
1281         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1282                 cnf = sk_CONF_VALUE_value(sktmp, i);
1283                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1284                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1285                                                          cnf->name, cnf->value);
1286                         return 0;
1287                 }
1288         }
1289         return 1;
1290 }