24e666f0dccd6bfb142785b34978a6c988b5fcf9
[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 DISTINGUISHED_NAME      "distinguished_name"
82 #define ATTRIBUTES      "attributes"
83 #define V3_EXTENSIONS   "x509_extensions"
84 #define REQ_EXTENSIONS  "req_extensions"
85 #define DIRSTRING_TYPE  "dirstring_type"
86
87 #define DEFAULT_KEY_LENGTH      512
88 #define MIN_KEY_LENGTH          384
89
90 #undef PROG
91 #define PROG    req_main
92
93 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
94  * -outform arg - output format - default PEM
95  * -in arg      - input file - default stdin
96  * -out arg     - output file - default stdout
97  * -verify      - check request signature
98  * -noout       - don't print stuff out.
99  * -text        - print out human readable text.
100  * -nodes       - no des encryption
101  * -config file - Load configuration file.
102  * -key file    - make a request using key in file (or use it for verification).
103  * -keyform     - key file format.
104  * -newkey      - make a key and a request.
105  * -modulus     - print RSA modulus.
106  * -x509        - output a self signed X509 structure instead.
107  * -asn1-kludge - output new certificate request in a format that some CA's
108  *                require.  This format is wrong
109  */
110
111 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
112 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
113                                 char *def, char *value, int nid, int min,
114                                 int max);
115 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
116         int nid,int min,int max);
117 static void MS_CALLBACK req_cb(int p,int n,void *arg);
118 static int req_fix_data(int nid,int *type,int len,int min,int max);
119 static int check_end(char *str, char *end);
120 static int add_oid_section(LHASH *conf);
121 #ifndef MONOLITH
122 static char *default_config_file=NULL;
123 static LHASH *config=NULL;
124 #endif
125 static LHASH *req_conf=NULL;
126
127 #define TYPE_RSA        1
128 #define TYPE_DSA        2
129 #define TYPE_DH         3
130
131 int MAIN(int argc, char **argv)
132         {
133 #ifndef NO_DSA
134         DSA *dsa_params=NULL;
135 #endif
136         int ex=1,x509=0,days=30;
137         X509 *x509ss=NULL;
138         X509_REQ *req=NULL;
139         EVP_PKEY *pkey=NULL;
140         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
141         BIO *in=NULL,*out=NULL;
142         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
143         int nodes=0,kludge=0;
144         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
145         char *extensions = NULL;
146         char *req_exts = NULL;
147         EVP_CIPHER *cipher=NULL;
148         int modulus=0;
149         char *passin = NULL, *passout = NULL;
150         char *p;
151         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
152 #ifndef MONOLITH
153         MS_STATIC char config_name[256];
154 #endif
155
156         req_conf = NULL;
157 #ifndef NO_DES
158         cipher=EVP_des_ede3_cbc();
159 #endif
160         apps_startup();
161
162         if (bio_err == NULL)
163                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
164                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
165
166         infile=NULL;
167         outfile=NULL;
168         informat=FORMAT_PEM;
169         outformat=FORMAT_PEM;
170
171         prog=argv[0];
172         argc--;
173         argv++;
174         while (argc >= 1)
175                 {
176                 if      (strcmp(*argv,"-inform") == 0)
177                         {
178                         if (--argc < 1) goto bad;
179                         informat=str2fmt(*(++argv));
180                         }
181                 else if (strcmp(*argv,"-outform") == 0)
182                         {
183                         if (--argc < 1) goto bad;
184                         outformat=str2fmt(*(++argv));
185                         }
186                 else if (strcmp(*argv,"-key") == 0)
187                         {
188                         if (--argc < 1) goto bad;
189                         keyfile= *(++argv);
190                         }
191                 else if (strcmp(*argv,"-new") == 0)
192                         {
193                         pkey_type=TYPE_RSA;
194                         newreq=1;
195                         }
196                 else if (strcmp(*argv,"-config") == 0)
197                         {       
198                         if (--argc < 1) goto bad;
199                         template= *(++argv);
200                         }
201                 else if (strcmp(*argv,"-keyform") == 0)
202                         {
203                         if (--argc < 1) goto bad;
204                         keyform=str2fmt(*(++argv));
205                         }
206                 else if (strcmp(*argv,"-in") == 0)
207                         {
208                         if (--argc < 1) goto bad;
209                         infile= *(++argv);
210                         }
211                 else if (strcmp(*argv,"-out") == 0)
212                         {
213                         if (--argc < 1) goto bad;
214                         outfile= *(++argv);
215                         }
216                 else if (strcmp(*argv,"-keyout") == 0)
217                         {
218                         if (--argc < 1) goto bad;
219                         keyout= *(++argv);
220                         }
221                 else if (strcmp(*argv,"-passin") == 0)
222                         {
223                         if (--argc < 1) goto bad;
224                         passin= *(++argv);
225                         }
226                 else if (strcmp(*argv,"-envpassin") == 0)
227                         {
228                         if (--argc < 1) goto bad;
229                                 if(!(passin= getenv(*(++argv))))
230                                 {
231                                 BIO_printf(bio_err,
232                                  "Can't read environment variable %s\n",
233                                                                 *argv);
234                                 badops = 1;
235                                 }
236                         }
237                 else if (strcmp(*argv,"-envpassout") == 0)
238                         {
239                         if (--argc < 1) goto bad;
240                                 if(!(passout= getenv(*(++argv))))
241                                 {
242                                 BIO_printf(bio_err,
243                                  "Can't read environment variable %s\n",
244                                                                 *argv);
245                                 badops = 1;
246                                 }
247                         argv++;
248                         }
249                 else if (strcmp(*argv,"-passout") == 0)
250                         {
251                         if (--argc < 1) goto bad;
252                         passout= *(++argv);
253                         }
254                 else if (strcmp(*argv,"-newkey") == 0)
255                         {
256                         int is_numeric;
257
258                         if (--argc < 1) goto bad;
259                         p= *(++argv);
260                         is_numeric = p[0] >= '0' && p[0] <= '9';
261                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
262                                 {
263                                 pkey_type=TYPE_RSA;
264                                 if(!is_numeric)
265                                     p+=4;
266                                 newkey= atoi(p);
267                                 }
268                         else
269 #ifndef NO_DSA
270                                 if (strncmp("dsa:",p,4) == 0)
271                                 {
272                                 X509 *xtmp=NULL;
273                                 EVP_PKEY *dtmp;
274
275                                 pkey_type=TYPE_DSA;
276                                 p+=4;
277                                 if ((in=BIO_new_file(p,"r")) == NULL)
278                                         {
279                                         perror(p);
280                                         goto end;
281                                         }
282                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
283                                         {
284                                         ERR_clear_error();
285                                         (void)BIO_reset(in);
286                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
287                                                 {
288                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
289                                                 goto end;
290                                                 }
291
292                                         dtmp=X509_get_pubkey(xtmp);
293                                         if (dtmp->type == EVP_PKEY_DSA)
294                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
295                                         EVP_PKEY_free(dtmp);
296                                         X509_free(xtmp);
297                                         if (dsa_params == NULL)
298                                                 {
299                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
300                                                 goto end;
301                                                 }
302                                         }
303                                 BIO_free(in);
304                                 newkey=BN_num_bits(dsa_params->p);
305                                 in=NULL;
306                                 }
307                         else 
308 #endif
309 #ifndef NO_DH
310                                 if (strncmp("dh:",p,4) == 0)
311                                 {
312                                 pkey_type=TYPE_DH;
313                                 p+=3;
314                                 }
315                         else
316 #endif
317                                 pkey_type=TYPE_RSA;
318
319                         newreq=1;
320                         }
321                 else if (strcmp(*argv,"-modulus") == 0)
322                         modulus=1;
323                 else if (strcmp(*argv,"-verify") == 0)
324                         verify=1;
325                 else if (strcmp(*argv,"-nodes") == 0)
326                         nodes=1;
327                 else if (strcmp(*argv,"-noout") == 0)
328                         noout=1;
329                 else if (strcmp(*argv,"-text") == 0)
330                         text=1;
331                 else if (strcmp(*argv,"-x509") == 0)
332                         x509=1;
333                 else if (strcmp(*argv,"-asn1-kludge") == 0)
334                         kludge=1;
335                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
336                         kludge=0;
337                 else if (strcmp(*argv,"-days") == 0)
338                         {
339                         if (--argc < 1) goto bad;
340                         days= atoi(*(++argv));
341                         if (days == 0) days=30;
342                         }
343                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
344                         {
345                         /* ok */
346                         digest=md_alg;
347                         }
348                 else if (strcmp(*argv,"-extensions") == 0)
349                         {
350                         if (--argc < 1) goto bad;
351                         extensions = *(++argv);
352                         }
353                 else if (strcmp(*argv,"-reqexts") == 0)
354                         {
355                         if (--argc < 1) goto bad;
356                         req_exts = *(++argv);
357                         }
358                 else
359                         {
360                         BIO_printf(bio_err,"unknown option %s\n",*argv);
361                         badops=1;
362                         break;
363                         }
364                 argc--;
365                 argv++;
366                 }
367
368         if (badops)
369                 {
370 bad:
371                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
372                 BIO_printf(bio_err,"where options  are\n");
373                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
374                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
375                 BIO_printf(bio_err," -in arg        input file\n");
376                 BIO_printf(bio_err," -out arg       output file\n");
377                 BIO_printf(bio_err," -text          text form of request\n");
378                 BIO_printf(bio_err," -noout         do not output REQ\n");
379                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
380                 BIO_printf(bio_err," -modulus       RSA modulus\n");
381                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
382                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
383                 BIO_printf(bio_err," -keyform arg   key file format\n");
384                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
385                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
386                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
387
388                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
389                 BIO_printf(bio_err," -config file   request template file.\n");
390                 BIO_printf(bio_err," -new           new request.\n");
391                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
392                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
393                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
394                 BIO_printf(bio_err,"                have been reported as requiring\n");
395                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
396                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
397                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
398                 goto end;
399                 }
400
401         ERR_load_crypto_strings();
402
403 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
404         /* Lets load up our environment a little */
405         p=getenv("OPENSSL_CONF");
406         if (p == NULL)
407                 p=getenv("SSLEAY_CONF");
408         if (p == NULL)
409                 {
410                 strcpy(config_name,X509_get_default_cert_area());
411 #ifndef VMS
412                 strcat(config_name,"/");
413 #endif
414                 strcat(config_name,OPENSSL_CONF);
415                 p=config_name;
416                 }
417         default_config_file=p;
418         config=CONF_load(config,p,NULL);
419 #endif
420
421         if (template != NULL)
422                 {
423                 long errline;
424
425                 BIO_printf(bio_err,"Using configuration from %s\n",template);
426                 req_conf=CONF_load(NULL,template,&errline);
427                 if (req_conf == NULL)
428                         {
429                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
430                         goto end;
431                         }
432                 }
433         else
434                 {
435                 req_conf=config;
436                 BIO_printf(bio_err,"Using configuration from %s\n",
437                         default_config_file);
438                 if (req_conf == NULL)
439                         {
440                         BIO_printf(bio_err,"Unable to load config info\n");
441                         }
442                 }
443
444         if (req_conf != NULL)
445                 {
446                 p=CONF_get_string(req_conf,NULL,"oid_file");
447                 if (p != NULL)
448                         {
449                         BIO *oid_bio;
450
451                         oid_bio=BIO_new_file(p,"r");
452                         if (oid_bio == NULL) 
453                                 {
454                                 /*
455                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
456                                 ERR_print_errors(bio_err);
457                                 */
458                                 }
459                         else
460                                 {
461                                 OBJ_create_objects(oid_bio);
462                                 BIO_free(oid_bio);
463                                 }
464                         }
465                 }
466                 if(!add_oid_section(req_conf)) goto end;
467
468         if ((md_alg == NULL) &&
469                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
470                 {
471                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
472                         digest=md_alg;
473                 }
474
475         if(!extensions)
476                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
477         if(extensions) {
478                 /* Check syntax of file */
479                 X509V3_CTX ctx;
480                 X509V3_set_ctx_test(&ctx);
481                 X509V3_set_conf_lhash(&ctx, req_conf);
482                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
483                         BIO_printf(bio_err,
484                          "Error Loading extension section %s\n", extensions);
485                         goto end;
486                 }
487         }
488
489         if(!passin)
490                 passin = CONF_get_string(req_conf, SECTION, "input_password");
491
492         if(!passout)
493                 passout = CONF_get_string(req_conf, SECTION, "output_password");
494
495         p = CONF_get_string(req_conf, SECTION, DIRSTRING_TYPE);
496
497         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
498                 BIO_printf(bio_err, "Invalid DiretoryString setting %s", p);
499                 goto end;
500         }
501
502         if(!req_exts)
503                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
504         if(req_exts) {
505                 /* Check syntax of file */
506                 X509V3_CTX ctx;
507                 X509V3_set_ctx_test(&ctx);
508                 X509V3_set_conf_lhash(&ctx, req_conf);
509                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
510                         BIO_printf(bio_err,
511                          "Error Loading request extension section %s\n",
512                                                                 req_exts);
513                         goto end;
514                 }
515         }
516
517         in=BIO_new(BIO_s_file());
518         out=BIO_new(BIO_s_file());
519         if ((in == NULL) || (out == NULL))
520                 goto end;
521
522         if (keyfile != NULL)
523                 {
524                 if (BIO_read_filename(in,keyfile) <= 0)
525                         {
526                         perror(keyfile);
527                         goto end;
528                         }
529
530 /*              if (keyform == FORMAT_ASN1)
531                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
532                 else */
533                 if (keyform == FORMAT_PEM)
534                         {
535                         pkey=PEM_read_bio_PrivateKey(in,NULL,PEM_cb,passin);
536                         }
537                 else
538                         {
539                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
540                         goto end;
541                         }
542
543                 if (pkey == NULL)
544                         {
545                         BIO_printf(bio_err,"unable to load Private key\n");
546                         goto end;
547                         }
548                 }
549
550         if (newreq && (pkey == NULL))
551                 {
552                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
553                 app_RAND_load_file(randfile, bio_err, 0);
554         
555                 if (newkey <= 0)
556                         {
557                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
558                         if (newkey <= 0)
559                                 newkey=DEFAULT_KEY_LENGTH;
560                         }
561
562                 if (newkey < MIN_KEY_LENGTH)
563                         {
564                         BIO_printf(bio_err,"private key length is too short,\n");
565                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
566                         goto end;
567                         }
568                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
569                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
570
571                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
572
573 #ifndef NO_RSA
574                 if (pkey_type == TYPE_RSA)
575                         {
576                         if (!EVP_PKEY_assign_RSA(pkey,
577                                 RSA_generate_key(newkey,0x10001,
578                                         req_cb,bio_err)))
579                                 goto end;
580                         }
581                 else
582 #endif
583 #ifndef NO_DSA
584                         if (pkey_type == TYPE_DSA)
585                         {
586                         if (!DSA_generate_key(dsa_params)) goto end;
587                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
588                         dsa_params=NULL;
589                         }
590 #endif
591
592                 app_RAND_write_file(randfile, bio_err);
593
594                 if (pkey == NULL) goto end;
595
596                 if (keyout == NULL)
597                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
598
599                 if (keyout == NULL)
600                         {
601                         BIO_printf(bio_err,"writing new private key to stdout\n");
602                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
603                         }
604                 else
605                         {
606                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
607                         if (BIO_write_filename(out,keyout) <= 0)
608                                 {
609                                 perror(keyout);
610                                 goto end;
611                                 }
612                         }
613
614                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
615                 if (p == NULL)
616                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
617                 if ((p != NULL) && (strcmp(p,"no") == 0))
618                         cipher=NULL;
619                 if (nodes) cipher=NULL;
620                 
621                 i=0;
622 loop:
623                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
624                         NULL,0,PEM_cb,passout))
625                         {
626                         if ((ERR_GET_REASON(ERR_peek_error()) ==
627                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
628                                 {
629                                 ERR_clear_error();
630                                 i++;
631                                 goto loop;
632                                 }
633                         goto end;
634                         }
635                 BIO_printf(bio_err,"-----\n");
636                 }
637
638         if (!newreq)
639                 {
640                 /* Since we are using a pre-existing certificate
641                  * request, the kludge 'format' info should not be
642                  * changed. */
643                 kludge= -1;
644                 if (infile == NULL)
645                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
646                 else
647                         {
648                         if (BIO_read_filename(in,infile) <= 0)
649                                 {
650                                 perror(infile);
651                                 goto end;
652                                 }
653                         }
654
655                 if      (informat == FORMAT_ASN1)
656                         req=d2i_X509_REQ_bio(in,NULL);
657                 else if (informat == FORMAT_PEM)
658                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
659                 else
660                         {
661                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
662                         goto end;
663                         }
664                 if (req == NULL)
665                         {
666                         BIO_printf(bio_err,"unable to load X509 request\n");
667                         goto end;
668                         }
669                 }
670
671         if (newreq || x509)
672                 {
673 #ifndef NO_DSA
674                 if (pkey->type == EVP_PKEY_DSA)
675                         digest=EVP_dss1();
676 #endif
677
678                 if (pkey == NULL)
679                         {
680                         BIO_printf(bio_err,"you need to specify a private key\n");
681                         goto end;
682                         }
683                 if (req == NULL)
684                         {
685                         req=X509_REQ_new();
686                         if (req == NULL)
687                                 {
688                                 goto end;
689                                 }
690
691                         i=make_REQ(req,pkey,!x509);
692                         if (kludge >= 0)
693                                 req->req_info->req_kludge=kludge;
694                         if (!i)
695                                 {
696                                 BIO_printf(bio_err,"problems making Certificate Request\n");
697                                 goto end;
698                                 }
699                         }
700                 if (x509)
701                         {
702                         EVP_PKEY *tmppkey;
703                         X509V3_CTX ext_ctx;
704                         if ((x509ss=X509_new()) == NULL) goto end;
705
706                         /* Set version to V3 */
707                         if(!X509_set_version(x509ss, 2)) goto end;
708                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
709
710                         X509_set_issuer_name(x509ss,
711                                 X509_REQ_get_subject_name(req));
712                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
713                         X509_gmtime_adj(X509_get_notAfter(x509ss),
714                                 (long)60*60*24*days);
715                         X509_set_subject_name(x509ss,
716                                 X509_REQ_get_subject_name(req));
717                         tmppkey = X509_REQ_get_pubkey(req);
718                         X509_set_pubkey(x509ss,tmppkey);
719                         EVP_PKEY_free(tmppkey);
720
721                         /* Set up V3 context struct */
722
723                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
724                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
725
726                         /* Add extensions */
727                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
728                                         &ext_ctx, extensions, x509ss))
729                             {
730                             BIO_printf(bio_err,
731                                        "Error Loading extension section %s\n",
732                                        extensions);
733                             goto end;
734                             }
735
736                         if (!(i=X509_sign(x509ss,pkey,digest)))
737                                 goto end;
738                         }
739                 else
740                         {
741                         X509V3_CTX ext_ctx;
742
743                         /* Set up V3 context struct */
744
745                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
746                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
747
748                         /* Add extensions */
749                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
750                                         &ext_ctx, req_exts, req))
751                             {
752                             BIO_printf(bio_err,
753                                        "Error Loading extension section %s\n",
754                                        req_exts);
755                             goto end;
756                             }
757                         if (!(i=X509_REQ_sign(req,pkey,digest)))
758                                 goto end;
759                         }
760                 }
761
762         if (verify && !x509)
763                 {
764                 int tmp=0;
765
766                 if (pkey == NULL)
767                         {
768                         pkey=X509_REQ_get_pubkey(req);
769                         tmp=1;
770                         if (pkey == NULL) goto end;
771                         }
772
773                 i=X509_REQ_verify(req,pkey);
774                 if (tmp) {
775                         EVP_PKEY_free(pkey);
776                         pkey=NULL;
777                 }
778
779                 if (i < 0)
780                         {
781                         goto end;
782                         }
783                 else if (i == 0)
784                         {
785                         BIO_printf(bio_err,"verify failure\n");
786                         }
787                 else /* if (i > 0) */
788                         BIO_printf(bio_err,"verify OK\n");
789                 }
790
791         if (noout && !text && !modulus)
792                 {
793                 ex=0;
794                 goto end;
795                 }
796
797         if (outfile == NULL)
798                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
799         else
800                 {
801                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
802                         i=(int)BIO_append_filename(out,outfile);
803                 else
804                         i=(int)BIO_write_filename(out,outfile);
805                 if (!i)
806                         {
807                         perror(outfile);
808                         goto end;
809                         }
810                 }
811
812         if (text)
813                 {
814                 if (x509)
815                         X509_print(out,x509ss);
816                 else    
817                         X509_REQ_print(out,req);
818                 }
819
820         if (modulus)
821                 {
822                 EVP_PKEY *pubkey;
823
824                 if (x509)
825                         pubkey=X509_get_pubkey(x509ss);
826                 else
827                         pubkey=X509_REQ_get_pubkey(req);
828                 if (pubkey == NULL)
829                         {
830                         fprintf(stdout,"Modulus=unavailable\n");
831                         goto end; 
832                         }
833                 fprintf(stdout,"Modulus=");
834 #ifndef NO_RSA
835                 if (pubkey->type == EVP_PKEY_RSA)
836                         BN_print(out,pubkey->pkey.rsa->n);
837                 else
838 #endif
839                         fprintf(stdout,"Wrong Algorithm type");
840                 fprintf(stdout,"\n");
841                 }
842
843         if (!noout && !x509)
844                 {
845                 if      (outformat == FORMAT_ASN1)
846                         i=i2d_X509_REQ_bio(out,req);
847                 else if (outformat == FORMAT_PEM)
848                         i=PEM_write_bio_X509_REQ(out,req);
849                 else    {
850                         BIO_printf(bio_err,"bad output format specified for outfile\n");
851                         goto end;
852                         }
853                 if (!i)
854                         {
855                         BIO_printf(bio_err,"unable to write X509 request\n");
856                         goto end;
857                         }
858                 }
859         if (!noout && x509 && (x509ss != NULL))
860                 {
861                 if      (outformat == FORMAT_ASN1)
862                         i=i2d_X509_bio(out,x509ss);
863                 else if (outformat == FORMAT_PEM)
864                         i=PEM_write_bio_X509(out,x509ss);
865                 else    {
866                         BIO_printf(bio_err,"bad output format specified for outfile\n");
867                         goto end;
868                         }
869                 if (!i)
870                         {
871                         BIO_printf(bio_err,"unable to write X509 certificate\n");
872                         goto end;
873                         }
874                 }
875         ex=0;
876 end:
877         if (ex)
878                 {
879                 ERR_print_errors(bio_err);
880                 }
881         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
882         BIO_free(in);
883         BIO_free(out);
884         EVP_PKEY_free(pkey);
885         X509_REQ_free(req);
886         X509_free(x509ss);
887         OBJ_cleanup();
888 #ifndef NO_DSA
889         if (dsa_params != NULL) DSA_free(dsa_params);
890 #endif
891         EXIT(ex);
892         }
893
894 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
895         {
896         int ret=0,i;
897         char *p,*q;
898         X509_REQ_INFO *ri;
899         char buf[100];
900         int nid,min,max;
901         char *type,*def,*tmp,*value,*tmp_attr;
902         STACK_OF(CONF_VALUE) *sk, *attr=NULL;
903         CONF_VALUE *v;
904         
905         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
906         if (tmp == NULL)
907                 {
908                 BIO_printf(bio_err,"unable to find '%s' in config\n",
909                         DISTINGUISHED_NAME);
910                 goto err;
911                 }
912         sk=CONF_get_section(req_conf,tmp);
913         if (sk == NULL)
914                 {
915                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
916                 goto err;
917                 }
918
919         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
920         if (tmp_attr == NULL)
921                 attr=NULL;
922         else
923                 {
924                 attr=CONF_get_section(req_conf,tmp_attr);
925                 if (attr == NULL)
926                         {
927                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
928                         goto err;
929                         }
930                 }
931
932         ri=req->req_info;
933
934         /* setup version number */
935         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
936
937         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
938         BIO_printf(bio_err,"into your certificate request.\n");
939         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
940         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
941         BIO_printf(bio_err,"For some fields there will be a default value,\n");
942         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
943         BIO_printf(bio_err,"-----\n");
944
945
946         if (sk_CONF_VALUE_num(sk))
947                 {
948                 i= -1;
949 start:          for (;;)
950                         {
951                         i++;
952                         if (sk_CONF_VALUE_num(sk) <= i) break;
953
954                         v=sk_CONF_VALUE_value(sk,i);
955                         p=q=NULL;
956                         type=v->name;
957                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
958                                 !check_end(type,"_default") ||
959                                          !check_end(type,"_value")) continue;
960                         /* Skip past any leading X. X: X, etc to allow for
961                          * multiple instances 
962                          */
963                         for(p = v->name; *p ; p++) 
964                                 if ((*p == ':') || (*p == ',') ||
965                                                          (*p == '.')) {
966                                         p++;
967                                         if(*p) type = p;
968                                         break;
969                                 }
970                         /* If OBJ not recognised ignore it */
971                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
972                         sprintf(buf,"%s_default",v->name);
973                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
974                                 def="";
975                                 
976                         sprintf(buf,"%s_value",v->name);
977                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
978                                 value=NULL;
979
980                         sprintf(buf,"%s_min",v->name);
981                         min=(int)CONF_get_number(req_conf,tmp,buf);
982
983                         sprintf(buf,"%s_max",v->name);
984                         max=(int)CONF_get_number(req_conf,tmp,buf);
985
986                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
987                                 min,max))
988                                 goto err;
989                         }
990                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
991                         {
992                         BIO_printf(bio_err,"error, no objects specified in config file\n");
993                         goto err;
994                         }
995
996                 if (attribs)
997                         {
998                         if ((attr != NULL) && (sk_CONF_VALUE_num(attr) > 0))
999                                 {
1000                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1001                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1002                                 }
1003
1004                         i= -1;
1005 start2:                 for (;;)
1006                                 {
1007                                 i++;
1008                                 if ((attr == NULL) ||
1009                                             (sk_CONF_VALUE_num(attr) <= i))
1010                                         break;
1011
1012                                 v=sk_CONF_VALUE_value(attr,i);
1013                                 type=v->name;
1014                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1015                                         goto start2;
1016
1017                                 sprintf(buf,"%s_default",type);
1018                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
1019                                         == NULL)
1020                                         def="";
1021                                 
1022                                 sprintf(buf,"%s_value",type);
1023                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
1024                                         == NULL)
1025                                         value=NULL;
1026
1027                                 sprintf(buf,"%s_min",type);
1028                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
1029
1030                                 sprintf(buf,"%s_max",type);
1031                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
1032
1033                                 if (!add_attribute_object(ri->attributes,
1034                                         v->value,def,value,nid,min,max))
1035                                         goto err;
1036                                 }
1037                         }
1038                 }
1039         else
1040                 {
1041                 BIO_printf(bio_err,"No template, please set one up.\n");
1042                 goto err;
1043                 }
1044
1045         X509_REQ_set_pubkey(req,pkey);
1046
1047         ret=1;
1048 err:
1049         return(ret);
1050         }
1051
1052 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1053              int nid, int min, int max)
1054         {
1055         int i,ret=0;
1056         MS_STATIC char buf[1024];
1057
1058         BIO_printf(bio_err,"%s [%s]:",text,def);
1059         (void)BIO_flush(bio_err);
1060         if (value != NULL)
1061                 {
1062                 strcpy(buf,value);
1063                 strcat(buf,"\n");
1064                 BIO_printf(bio_err,"%s\n",value);
1065                 }
1066         else
1067                 {
1068                 buf[0]='\0';
1069                 fgets(buf,1024,stdin);
1070                 }
1071
1072         if (buf[0] == '\0') return(0);
1073         else if (buf[0] == '\n')
1074                 {
1075                 if ((def == NULL) || (def[0] == '\0'))
1076                         return(1);
1077                 strcpy(buf,def);
1078                 strcat(buf,"\n");
1079                 }
1080         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1081
1082         i=strlen(buf);
1083         if (buf[i-1] != '\n')
1084                 {
1085                 BIO_printf(bio_err,"weird input :-(\n");
1086                 return(0);
1087                 }
1088         buf[--i]='\0';
1089
1090 #ifdef CHARSET_EBCDIC
1091         ebcdic2ascii(buf, buf, i);
1092 #endif
1093         if(!req_fix_data(-1, NULL, i, min, max)) goto err;
1094         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1095                                 (unsigned char *) buf, -1,-1,0)) goto err;
1096         ret=1;
1097 err:
1098         return(ret);
1099         }
1100
1101 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1102                                 char *def, char *value, int nid, int min,
1103                                 int max)
1104         {
1105         int i,z;
1106         X509_ATTRIBUTE *xa=NULL;
1107         static char buf[1024];
1108         ASN1_BIT_STRING *bs=NULL;
1109         ASN1_TYPE *at=NULL;
1110
1111 start:
1112         BIO_printf(bio_err,"%s [%s]:",text,def);
1113         (void)BIO_flush(bio_err);
1114         if (value != NULL)
1115                 {
1116                 strcpy(buf,value);
1117                 strcat(buf,"\n");
1118                 BIO_printf(bio_err,"%s\n",value);
1119                 }
1120         else
1121                 {
1122                 buf[0]='\0';
1123                 fgets(buf,1024,stdin);
1124                 }
1125
1126         if (buf[0] == '\0') return(0);
1127         else if (buf[0] == '\n')
1128                 {
1129                 if ((def == NULL) || (def[0] == '\0'))
1130                         return(1);
1131                 strcpy(buf,def);
1132                 strcat(buf,"\n");
1133                 }
1134         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1135
1136         i=strlen(buf);
1137         if (buf[i-1] != '\n')
1138                 {
1139                 BIO_printf(bio_err,"weird input :-(\n");
1140                 return(0);
1141                 }
1142         buf[--i]='\0';
1143
1144         /* add object plus value */
1145         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1146                 goto err;
1147         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1148                 goto err;
1149         xa->set=1;
1150
1151         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1152         xa->object=OBJ_nid2obj(nid);
1153
1154         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1155
1156         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1157
1158         z=req_fix_data(nid,&bs->type,i,min,max);
1159         if (z == 0)
1160                 {
1161                 if (value == NULL)
1162                         goto start;
1163                 else    goto err;
1164                 }
1165
1166         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i))
1167                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1168
1169         if ((at=ASN1_TYPE_new()) == NULL)
1170                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1171
1172         ASN1_TYPE_set(at,bs->type,(char *)bs);
1173         sk_ASN1_TYPE_push(xa->value.set,at);
1174         bs=NULL;
1175         at=NULL;
1176         /* only one item per attribute */
1177
1178         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1179         return(1);
1180 err:
1181         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1182         if (at != NULL) ASN1_TYPE_free(at);
1183         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1184         return(0);
1185         }
1186
1187 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1188         {
1189         char c='*';
1190
1191         if (p == 0) c='.';
1192         if (p == 1) c='+';
1193         if (p == 2) c='*';
1194         if (p == 3) c='\n';
1195         BIO_write((BIO *)arg,&c,1);
1196         (void)BIO_flush((BIO *)arg);
1197 #ifdef LINT
1198         p=n;
1199 #endif
1200         }
1201
1202 static int req_fix_data(int nid, int *type, int len, int min, int max)
1203         {
1204         if(type) {
1205                 if (nid == NID_pkcs9_emailAddress)
1206                         *type=V_ASN1_IA5STRING;
1207                 if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1208                         *type=V_ASN1_T61STRING;
1209                 if ((nid == NID_pkcs9_challengePassword) &&
1210                         (*type == V_ASN1_IA5STRING))
1211                         *type=V_ASN1_T61STRING;
1212
1213                 if ((nid == NID_pkcs9_unstructuredName) &&
1214                         (*type == V_ASN1_T61STRING))
1215                         {
1216                         BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1217                         return(0);
1218                         }
1219                 if (nid == NID_pkcs9_unstructuredName)
1220                         *type=V_ASN1_IA5STRING;
1221         }
1222         if (len < min)
1223                 {
1224                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1225                 return(0);
1226                 }
1227         if ((max != 0) && (len > max))
1228                 {
1229                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1230                 return(0);
1231                 }
1232         return(1);
1233         }
1234
1235 /* Check if the end of a string matches 'end' */
1236 static int check_end(char *str, char *end)
1237 {
1238         int elen, slen; 
1239         char *tmp;
1240         elen = strlen(end);
1241         slen = strlen(str);
1242         if(elen > slen) return 1;
1243         tmp = str + slen - elen;
1244         return strcmp(tmp, end);
1245 }
1246
1247 static int add_oid_section(LHASH *conf)
1248 {       
1249         char *p;
1250         STACK_OF(CONF_VALUE) *sktmp;
1251         CONF_VALUE *cnf;
1252         int i;
1253         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1254         if(!(sktmp = CONF_get_section(conf, p))) {
1255                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1256                 return 0;
1257         }
1258         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1259                 cnf = sk_CONF_VALUE_value(sktmp, i);
1260                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1261                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1262                                                          cnf->name, cnf->value);
1263                         return 0;
1264                 }
1265         }
1266         return 1;
1267 }