'req' fixes. Reinstate length check one request fields.
[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 *p;
150         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
151 #ifndef MONOLITH
152         MS_STATIC char config_name[256];
153 #endif
154
155         req_conf = NULL;
156 #ifndef NO_DES
157         cipher=EVP_des_ede3_cbc();
158 #endif
159         apps_startup();
160
161         if (bio_err == NULL)
162                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
163                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
164
165         infile=NULL;
166         outfile=NULL;
167         informat=FORMAT_PEM;
168         outformat=FORMAT_PEM;
169
170         prog=argv[0];
171         argc--;
172         argv++;
173         while (argc >= 1)
174                 {
175                 if      (strcmp(*argv,"-inform") == 0)
176                         {
177                         if (--argc < 1) goto bad;
178                         informat=str2fmt(*(++argv));
179                         }
180                 else if (strcmp(*argv,"-outform") == 0)
181                         {
182                         if (--argc < 1) goto bad;
183                         outformat=str2fmt(*(++argv));
184                         }
185                 else if (strcmp(*argv,"-key") == 0)
186                         {
187                         if (--argc < 1) goto bad;
188                         keyfile= *(++argv);
189                         }
190                 else if (strcmp(*argv,"-new") == 0)
191                         {
192                         pkey_type=TYPE_RSA;
193                         newreq=1;
194                         }
195                 else if (strcmp(*argv,"-config") == 0)
196                         {       
197                         if (--argc < 1) goto bad;
198                         template= *(++argv);
199                         }
200                 else if (strcmp(*argv,"-keyform") == 0)
201                         {
202                         if (--argc < 1) goto bad;
203                         keyform=str2fmt(*(++argv));
204                         }
205                 else if (strcmp(*argv,"-in") == 0)
206                         {
207                         if (--argc < 1) goto bad;
208                         infile= *(++argv);
209                         }
210                 else if (strcmp(*argv,"-out") == 0)
211                         {
212                         if (--argc < 1) goto bad;
213                         outfile= *(++argv);
214                         }
215                 else if (strcmp(*argv,"-keyout") == 0)
216                         {
217                         if (--argc < 1) goto bad;
218                         keyout= *(++argv);
219                         }
220                 else if (strcmp(*argv,"-newkey") == 0)
221                         {
222                         int is_numeric;
223
224                         if (--argc < 1) goto bad;
225                         p= *(++argv);
226                         is_numeric = p[0] >= '0' && p[0] <= '9';
227                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
228                                 {
229                                 pkey_type=TYPE_RSA;
230                                 if(!is_numeric)
231                                     p+=4;
232                                 newkey= atoi(p);
233                                 }
234                         else
235 #ifndef NO_DSA
236                                 if (strncmp("dsa:",p,4) == 0)
237                                 {
238                                 X509 *xtmp=NULL;
239                                 EVP_PKEY *dtmp;
240
241                                 pkey_type=TYPE_DSA;
242                                 p+=4;
243                                 if ((in=BIO_new_file(p,"r")) == NULL)
244                                         {
245                                         perror(p);
246                                         goto end;
247                                         }
248                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
249                                         {
250                                         ERR_clear_error();
251                                         (void)BIO_reset(in);
252                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
253                                                 {
254                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
255                                                 goto end;
256                                                 }
257
258                                         dtmp=X509_get_pubkey(xtmp);
259                                         if (dtmp->type == EVP_PKEY_DSA)
260                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
261                                         EVP_PKEY_free(dtmp);
262                                         X509_free(xtmp);
263                                         if (dsa_params == NULL)
264                                                 {
265                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
266                                                 goto end;
267                                                 }
268                                         }
269                                 BIO_free(in);
270                                 newkey=BN_num_bits(dsa_params->p);
271                                 in=NULL;
272                                 }
273                         else 
274 #endif
275 #ifndef NO_DH
276                                 if (strncmp("dh:",p,4) == 0)
277                                 {
278                                 pkey_type=TYPE_DH;
279                                 p+=3;
280                                 }
281                         else
282 #endif
283                                 pkey_type=TYPE_RSA;
284
285                         newreq=1;
286                         }
287                 else if (strcmp(*argv,"-modulus") == 0)
288                         modulus=1;
289                 else if (strcmp(*argv,"-verify") == 0)
290                         verify=1;
291                 else if (strcmp(*argv,"-nodes") == 0)
292                         nodes=1;
293                 else if (strcmp(*argv,"-noout") == 0)
294                         noout=1;
295                 else if (strcmp(*argv,"-text") == 0)
296                         text=1;
297                 else if (strcmp(*argv,"-x509") == 0)
298                         x509=1;
299                 else if (strcmp(*argv,"-asn1-kludge") == 0)
300                         kludge=1;
301                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
302                         kludge=0;
303                 else if (strcmp(*argv,"-days") == 0)
304                         {
305                         if (--argc < 1) goto bad;
306                         days= atoi(*(++argv));
307                         if (days == 0) days=30;
308                         }
309                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
310                         {
311                         /* ok */
312                         digest=md_alg;
313                         }
314                 else if (strcmp(*argv,"-extensions") == 0)
315                         {
316                         if (--argc < 1) goto bad;
317                         extensions = *(++argv);
318                         }
319                 else if (strcmp(*argv,"-reqexts") == 0)
320                         {
321                         if (--argc < 1) goto bad;
322                         req_exts = *(++argv);
323                         }
324                 else
325                         {
326                         BIO_printf(bio_err,"unknown option %s\n",*argv);
327                         badops=1;
328                         break;
329                         }
330                 argc--;
331                 argv++;
332                 }
333
334         if (badops)
335                 {
336 bad:
337                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
338                 BIO_printf(bio_err,"where options  are\n");
339                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
340                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
341                 BIO_printf(bio_err," -in arg        input file\n");
342                 BIO_printf(bio_err," -out arg       output file\n");
343                 BIO_printf(bio_err," -text          text form of request\n");
344                 BIO_printf(bio_err," -noout         do not output REQ\n");
345                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
346                 BIO_printf(bio_err," -modulus       RSA modulus\n");
347                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
348                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
349                 BIO_printf(bio_err," -keyform arg   key file format\n");
350                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
351                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
352                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
353
354                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
355                 BIO_printf(bio_err," -config file   request template file.\n");
356                 BIO_printf(bio_err," -new           new request.\n");
357                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
358                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
359                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
360                 BIO_printf(bio_err,"                have been reported as requiring\n");
361                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
362                 BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
363                 BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
364                 goto end;
365                 }
366
367         ERR_load_crypto_strings();
368         X509V3_add_standard_extensions();
369
370 #ifndef MONOLITH
371         /* Lets load up our environment a little */
372         p=getenv("OPENSSL_CONF");
373         if (p == NULL)
374                 p=getenv("SSLEAY_CONF");
375         if (p == NULL)
376                 {
377                 strcpy(config_name,X509_get_default_cert_area());
378 #ifndef VMS
379                 strcat(config_name,"/");
380 #endif
381                 strcat(config_name,OPENSSL_CONF);
382                 p=config_name;
383                 }
384         default_config_file=p;
385         config=CONF_load(config,p,NULL);
386 #endif
387
388         if (template != NULL)
389                 {
390                 long errline;
391
392                 BIO_printf(bio_err,"Using configuration from %s\n",template);
393                 req_conf=CONF_load(NULL,template,&errline);
394                 if (req_conf == NULL)
395                         {
396                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
397                         goto end;
398                         }
399                 }
400         else
401                 {
402                 req_conf=config;
403                 BIO_printf(bio_err,"Using configuration from %s\n",
404                         default_config_file);
405                 if (req_conf == NULL)
406                         {
407                         BIO_printf(bio_err,"Unable to load config info\n");
408                         }
409                 }
410
411         if (req_conf != NULL)
412                 {
413                 p=CONF_get_string(req_conf,NULL,"oid_file");
414                 if (p != NULL)
415                         {
416                         BIO *oid_bio;
417
418                         oid_bio=BIO_new_file(p,"r");
419                         if (oid_bio == NULL) 
420                                 {
421                                 /*
422                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
423                                 ERR_print_errors(bio_err);
424                                 */
425                                 }
426                         else
427                                 {
428                                 OBJ_create_objects(oid_bio);
429                                 BIO_free(oid_bio);
430                                 }
431                         }
432                 }
433                 if(!add_oid_section(req_conf)) goto end;
434
435         if ((md_alg == NULL) &&
436                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
437                 {
438                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
439                         digest=md_alg;
440                 }
441
442         if(!extensions)
443                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
444         if(extensions) {
445                 /* Check syntax of file */
446                 X509V3_CTX ctx;
447                 X509V3_set_ctx_test(&ctx);
448                 X509V3_set_conf_lhash(&ctx, req_conf);
449                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
450                         BIO_printf(bio_err,
451                          "Error Loading extension section %s\n", extensions);
452                         goto end;
453                 }
454         }
455
456         p = CONF_get_string(req_conf, SECTION, DIRSTRING_TYPE);
457
458         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
459                 BIO_printf(bio_err, "Invalid DiretoryString setting %s", p);
460                 goto end;
461         }
462
463         if(!req_exts)
464                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
465         if(req_exts) {
466                 /* Check syntax of file */
467                 X509V3_CTX ctx;
468                 X509V3_set_ctx_test(&ctx);
469                 X509V3_set_conf_lhash(&ctx, req_conf);
470                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
471                         BIO_printf(bio_err,
472                          "Error Loading request extension section %s\n",
473                                                                 req_exts);
474                         goto end;
475                 }
476         }
477
478         in=BIO_new(BIO_s_file());
479         out=BIO_new(BIO_s_file());
480         if ((in == NULL) || (out == NULL))
481                 goto end;
482
483         if (keyfile != NULL)
484                 {
485                 if (BIO_read_filename(in,keyfile) <= 0)
486                         {
487                         perror(keyfile);
488                         goto end;
489                         }
490
491 /*              if (keyform == FORMAT_ASN1)
492                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
493                 else */
494                 if (keyform == FORMAT_PEM)
495                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,NULL);
496                 else
497                         {
498                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
499                         goto end;
500                         }
501
502                 if (pkey == NULL)
503                         {
504                         BIO_printf(bio_err,"unable to load Private key\n");
505                         goto end;
506                         }
507                 }
508
509         if (newreq && (pkey == NULL))
510                 {
511                 char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
512                 app_RAND_load_file(randfile, bio_err, 0);
513         
514                 if (newkey <= 0)
515                         {
516                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
517                         if (newkey <= 0)
518                                 newkey=DEFAULT_KEY_LENGTH;
519                         }
520
521                 if (newkey < MIN_KEY_LENGTH)
522                         {
523                         BIO_printf(bio_err,"private key length is too short,\n");
524                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
525                         goto end;
526                         }
527                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
528                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
529
530                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
531
532 #ifndef NO_RSA
533                 if (pkey_type == TYPE_RSA)
534                         {
535                         if (!EVP_PKEY_assign_RSA(pkey,
536                                 RSA_generate_key(newkey,0x10001,
537                                         req_cb,bio_err)))
538                                 goto end;
539                         }
540                 else
541 #endif
542 #ifndef NO_DSA
543                         if (pkey_type == TYPE_DSA)
544                         {
545                         if (!DSA_generate_key(dsa_params)) goto end;
546                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
547                         dsa_params=NULL;
548                         }
549 #endif
550
551                 app_RAND_write_file(randfile, bio_err);
552
553                 if (pkey == NULL) goto end;
554
555                 if (keyout == NULL)
556                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
557
558                 if (keyout == NULL)
559                         {
560                         BIO_printf(bio_err,"writing new private key to stdout\n");
561                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
562                         }
563                 else
564                         {
565                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
566                         if (BIO_write_filename(out,keyout) <= 0)
567                                 {
568                                 perror(keyout);
569                                 goto end;
570                                 }
571                         }
572
573                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
574                 if (p == NULL)
575                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
576                 if ((p != NULL) && (strcmp(p,"no") == 0))
577                         cipher=NULL;
578                 if (nodes) cipher=NULL;
579                 
580                 i=0;
581 loop:
582                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
583                         NULL,0,NULL,NULL))
584                         {
585                         if ((ERR_GET_REASON(ERR_peek_error()) ==
586                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
587                                 {
588                                 ERR_clear_error();
589                                 i++;
590                                 goto loop;
591                                 }
592                         goto end;
593                         }
594                 BIO_printf(bio_err,"-----\n");
595                 }
596
597         if (!newreq)
598                 {
599                 /* Since we are using a pre-existing certificate
600                  * request, the kludge 'format' info should not be
601                  * changed. */
602                 kludge= -1;
603                 if (infile == NULL)
604                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
605                 else
606                         {
607                         if (BIO_read_filename(in,infile) <= 0)
608                                 {
609                                 perror(infile);
610                                 goto end;
611                                 }
612                         }
613
614                 if      (informat == FORMAT_ASN1)
615                         req=d2i_X509_REQ_bio(in,NULL);
616                 else if (informat == FORMAT_PEM)
617                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
618                 else
619                         {
620                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
621                         goto end;
622                         }
623                 if (req == NULL)
624                         {
625                         BIO_printf(bio_err,"unable to load X509 request\n");
626                         goto end;
627                         }
628                 }
629
630         if (newreq || x509)
631                 {
632 #ifndef NO_DSA
633                 if (pkey->type == EVP_PKEY_DSA)
634                         digest=EVP_dss1();
635 #endif
636
637                 if (pkey == NULL)
638                         {
639                         BIO_printf(bio_err,"you need to specify a private key\n");
640                         goto end;
641                         }
642                 if (req == NULL)
643                         {
644                         req=X509_REQ_new();
645                         if (req == NULL)
646                                 {
647                                 goto end;
648                                 }
649
650                         i=make_REQ(req,pkey,!x509);
651                         if (kludge >= 0)
652                                 req->req_info->req_kludge=kludge;
653                         if (!i)
654                                 {
655                                 BIO_printf(bio_err,"problems making Certificate Request\n");
656                                 goto end;
657                                 }
658                         }
659                 if (x509)
660                         {
661                         EVP_PKEY *tmppkey;
662                         X509V3_CTX ext_ctx;
663                         if ((x509ss=X509_new()) == NULL) goto end;
664
665                         /* Set version to V3 */
666                         if(!X509_set_version(x509ss, 2)) goto end;
667                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
668
669                         X509_set_issuer_name(x509ss,
670                                 X509_REQ_get_subject_name(req));
671                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
672                         X509_gmtime_adj(X509_get_notAfter(x509ss),
673                                 (long)60*60*24*days);
674                         X509_set_subject_name(x509ss,
675                                 X509_REQ_get_subject_name(req));
676                         tmppkey = X509_REQ_get_pubkey(req);
677                         X509_set_pubkey(x509ss,tmppkey);
678                         EVP_PKEY_free(tmppkey);
679
680                         /* Set up V3 context struct */
681
682                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
683                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
684
685                         /* Add extensions */
686                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
687                                         &ext_ctx, extensions, x509ss))
688                             {
689                             BIO_printf(bio_err,
690                                        "Error Loading extension section %s\n",
691                                        extensions);
692                             goto end;
693                             }
694
695                         if (!(i=X509_sign(x509ss,pkey,digest)))
696                                 goto end;
697                         }
698                 else
699                         {
700                         X509V3_CTX ext_ctx;
701
702                         /* Set up V3 context struct */
703
704                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
705                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
706
707                         /* Add extensions */
708                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
709                                         &ext_ctx, req_exts, req))
710                             {
711                             BIO_printf(bio_err,
712                                        "Error Loading extension section %s\n",
713                                        req_exts);
714                             goto end;
715                             }
716                         if (!(i=X509_REQ_sign(req,pkey,digest)))
717                                 goto end;
718                         }
719                 }
720
721         if (verify && !x509)
722                 {
723                 int tmp=0;
724
725                 if (pkey == NULL)
726                         {
727                         pkey=X509_REQ_get_pubkey(req);
728                         tmp=1;
729                         if (pkey == NULL) goto end;
730                         }
731
732                 i=X509_REQ_verify(req,pkey);
733                 if (tmp) {
734                         EVP_PKEY_free(pkey);
735                         pkey=NULL;
736                 }
737
738                 if (i < 0)
739                         {
740                         goto end;
741                         }
742                 else if (i == 0)
743                         {
744                         BIO_printf(bio_err,"verify failure\n");
745                         }
746                 else /* if (i > 0) */
747                         BIO_printf(bio_err,"verify OK\n");
748                 }
749
750         if (noout && !text && !modulus)
751                 {
752                 ex=0;
753                 goto end;
754                 }
755
756         if (outfile == NULL)
757                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
758         else
759                 {
760                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
761                         i=(int)BIO_append_filename(out,outfile);
762                 else
763                         i=(int)BIO_write_filename(out,outfile);
764                 if (!i)
765                         {
766                         perror(outfile);
767                         goto end;
768                         }
769                 }
770
771         if (text)
772                 {
773                 if (x509)
774                         X509_print(out,x509ss);
775                 else    
776                         X509_REQ_print(out,req);
777                 }
778
779         if (modulus)
780                 {
781                 EVP_PKEY *pubkey;
782
783                 if (x509)
784                         pubkey=X509_get_pubkey(x509ss);
785                 else
786                         pubkey=X509_REQ_get_pubkey(req);
787                 if (pubkey == NULL)
788                         {
789                         fprintf(stdout,"Modulus=unavailable\n");
790                         goto end; 
791                         }
792                 fprintf(stdout,"Modulus=");
793 #ifndef NO_RSA
794                 if (pubkey->type == EVP_PKEY_RSA)
795                         BN_print(out,pubkey->pkey.rsa->n);
796                 else
797 #endif
798                         fprintf(stdout,"Wrong Algorithm type");
799                 fprintf(stdout,"\n");
800                 }
801
802         if (!noout && !x509)
803                 {
804                 if      (outformat == FORMAT_ASN1)
805                         i=i2d_X509_REQ_bio(out,req);
806                 else if (outformat == FORMAT_PEM)
807                         i=PEM_write_bio_X509_REQ(out,req);
808                 else    {
809                         BIO_printf(bio_err,"bad output format specified for outfile\n");
810                         goto end;
811                         }
812                 if (!i)
813                         {
814                         BIO_printf(bio_err,"unable to write X509 request\n");
815                         goto end;
816                         }
817                 }
818         if (!noout && x509 && (x509ss != NULL))
819                 {
820                 if      (outformat == FORMAT_ASN1)
821                         i=i2d_X509_bio(out,x509ss);
822                 else if (outformat == FORMAT_PEM)
823                         i=PEM_write_bio_X509(out,x509ss);
824                 else    {
825                         BIO_printf(bio_err,"bad output format specified for outfile\n");
826                         goto end;
827                         }
828                 if (!i)
829                         {
830                         BIO_printf(bio_err,"unable to write X509 certificate\n");
831                         goto end;
832                         }
833                 }
834         ex=0;
835 end:
836         if (ex)
837                 {
838                 ERR_print_errors(bio_err);
839                 }
840         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
841         BIO_free(in);
842         BIO_free(out);
843         EVP_PKEY_free(pkey);
844         X509_REQ_free(req);
845         X509_free(x509ss);
846         X509V3_EXT_cleanup();
847         OBJ_cleanup();
848         ASN1_STRING_TABLE_cleanup();
849 #ifndef NO_DSA
850         if (dsa_params != NULL) DSA_free(dsa_params);
851 #endif
852         EXIT(ex);
853         }
854
855 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
856         {
857         int ret=0,i;
858         char *p,*q;
859         X509_REQ_INFO *ri;
860         char buf[100];
861         int nid,min,max;
862         char *type,*def,*tmp,*value,*tmp_attr;
863         STACK_OF(CONF_VALUE) *sk, *attr=NULL;
864         CONF_VALUE *v;
865         
866         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
867         if (tmp == NULL)
868                 {
869                 BIO_printf(bio_err,"unable to find '%s' in config\n",
870                         DISTINGUISHED_NAME);
871                 goto err;
872                 }
873         sk=CONF_get_section(req_conf,tmp);
874         if (sk == NULL)
875                 {
876                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
877                 goto err;
878                 }
879
880         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
881         if (tmp_attr == NULL)
882                 attr=NULL;
883         else
884                 {
885                 attr=CONF_get_section(req_conf,tmp_attr);
886                 if (attr == NULL)
887                         {
888                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
889                         goto err;
890                         }
891                 }
892
893         ri=req->req_info;
894
895         /* setup version number */
896         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
897
898         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
899         BIO_printf(bio_err,"into your certificate request.\n");
900         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
901         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
902         BIO_printf(bio_err,"For some fields there will be a default value,\n");
903         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
904         BIO_printf(bio_err,"-----\n");
905
906
907         if (sk_CONF_VALUE_num(sk))
908                 {
909                 i= -1;
910 start:          for (;;)
911                         {
912                         i++;
913                         if (sk_CONF_VALUE_num(sk) <= i) break;
914
915                         v=sk_CONF_VALUE_value(sk,i);
916                         p=q=NULL;
917                         type=v->name;
918                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
919                                 !check_end(type,"_default") ||
920                                          !check_end(type,"_value")) continue;
921                         /* Skip past any leading X. X: X, etc to allow for
922                          * multiple instances 
923                          */
924                         for(p = v->name; *p ; p++) 
925                                 if ((*p == ':') || (*p == ',') ||
926                                                          (*p == '.')) {
927                                         p++;
928                                         if(*p) type = p;
929                                         break;
930                                 }
931                         /* If OBJ not recognised ignore it */
932                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
933                         sprintf(buf,"%s_default",v->name);
934                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
935                                 def="";
936                                 
937                         sprintf(buf,"%s_value",v->name);
938                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
939                                 value=NULL;
940
941                         sprintf(buf,"%s_min",v->name);
942                         min=(int)CONF_get_number(req_conf,tmp,buf);
943
944                         sprintf(buf,"%s_max",v->name);
945                         max=(int)CONF_get_number(req_conf,tmp,buf);
946
947                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
948                                 min,max))
949                                 goto err;
950                         }
951                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
952                         {
953                         BIO_printf(bio_err,"error, no objects specified in config file\n");
954                         goto err;
955                         }
956
957                 if (attribs)
958                         {
959                         if ((attr != NULL) && (sk_CONF_VALUE_num(attr) > 0))
960                                 {
961                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
962                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
963                                 }
964
965                         i= -1;
966 start2:                 for (;;)
967                                 {
968                                 i++;
969                                 if ((attr == NULL) ||
970                                             (sk_CONF_VALUE_num(attr) <= i))
971                                         break;
972
973                                 v=sk_CONF_VALUE_value(attr,i);
974                                 type=v->name;
975                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
976                                         goto start2;
977
978                                 sprintf(buf,"%s_default",type);
979                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
980                                         == NULL)
981                                         def="";
982                                 
983                                 sprintf(buf,"%s_value",type);
984                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
985                                         == NULL)
986                                         value=NULL;
987
988                                 sprintf(buf,"%s_min",type);
989                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
990
991                                 sprintf(buf,"%s_max",type);
992                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
993
994                                 if (!add_attribute_object(ri->attributes,
995                                         v->value,def,value,nid,min,max))
996                                         goto err;
997                                 }
998                         }
999                 }
1000         else
1001                 {
1002                 BIO_printf(bio_err,"No template, please set one up.\n");
1003                 goto err;
1004                 }
1005
1006         X509_REQ_set_pubkey(req,pkey);
1007
1008         ret=1;
1009 err:
1010         return(ret);
1011         }
1012
1013 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1014              int nid, int min, int max)
1015         {
1016         int i,ret=0;
1017         MS_STATIC char buf[1024];
1018
1019         BIO_printf(bio_err,"%s [%s]:",text,def);
1020         (void)BIO_flush(bio_err);
1021         if (value != NULL)
1022                 {
1023                 strcpy(buf,value);
1024                 strcat(buf,"\n");
1025                 BIO_printf(bio_err,"%s\n",value);
1026                 }
1027         else
1028                 {
1029                 buf[0]='\0';
1030                 fgets(buf,1024,stdin);
1031                 }
1032
1033         if (buf[0] == '\0') return(0);
1034         else if (buf[0] == '\n')
1035                 {
1036                 if ((def == NULL) || (def[0] == '\0'))
1037                         return(1);
1038                 strcpy(buf,def);
1039                 strcat(buf,"\n");
1040                 }
1041         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1042
1043         i=strlen(buf);
1044         if (buf[i-1] != '\n')
1045                 {
1046                 BIO_printf(bio_err,"weird input :-(\n");
1047                 return(0);
1048                 }
1049         buf[--i]='\0';
1050
1051 #ifdef CHARSET_EBCDIC
1052         ebcdic2ascii(buf, buf, i);
1053 #endif
1054         if(!req_fix_data(-1, NULL, i, min, max)) goto err;
1055         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1056                                 (unsigned char *) buf, -1,-1,0)) goto err;
1057         ret=1;
1058 err:
1059         return(ret);
1060         }
1061
1062 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1063                                 char *def, char *value, int nid, int min,
1064                                 int max)
1065         {
1066         int i,z;
1067         X509_ATTRIBUTE *xa=NULL;
1068         static char buf[1024];
1069         ASN1_BIT_STRING *bs=NULL;
1070         ASN1_TYPE *at=NULL;
1071
1072 start:
1073         BIO_printf(bio_err,"%s [%s]:",text,def);
1074         (void)BIO_flush(bio_err);
1075         if (value != NULL)
1076                 {
1077                 strcpy(buf,value);
1078                 strcat(buf,"\n");
1079                 BIO_printf(bio_err,"%s\n",value);
1080                 }
1081         else
1082                 {
1083                 buf[0]='\0';
1084                 fgets(buf,1024,stdin);
1085                 }
1086
1087         if (buf[0] == '\0') return(0);
1088         else if (buf[0] == '\n')
1089                 {
1090                 if ((def == NULL) || (def[0] == '\0'))
1091                         return(1);
1092                 strcpy(buf,def);
1093                 strcat(buf,"\n");
1094                 }
1095         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1096
1097         i=strlen(buf);
1098         if (buf[i-1] != '\n')
1099                 {
1100                 BIO_printf(bio_err,"weird input :-(\n");
1101                 return(0);
1102                 }
1103         buf[--i]='\0';
1104
1105         /* add object plus value */
1106         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1107                 goto err;
1108         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1109                 goto err;
1110         xa->set=1;
1111
1112         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1113         xa->object=OBJ_nid2obj(nid);
1114
1115         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1116
1117         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1118
1119         z=req_fix_data(nid,&bs->type,i,min,max);
1120         if (z == 0)
1121                 {
1122                 if (value == NULL)
1123                         goto start;
1124                 else    goto err;
1125                 }
1126
1127         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i))
1128                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1129
1130         if ((at=ASN1_TYPE_new()) == NULL)
1131                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1132
1133         ASN1_TYPE_set(at,bs->type,(char *)bs);
1134         sk_ASN1_TYPE_push(xa->value.set,at);
1135         bs=NULL;
1136         at=NULL;
1137         /* only one item per attribute */
1138
1139         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1140         return(1);
1141 err:
1142         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1143         if (at != NULL) ASN1_TYPE_free(at);
1144         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1145         return(0);
1146         }
1147
1148 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1149         {
1150         char c='*';
1151
1152         if (p == 0) c='.';
1153         if (p == 1) c='+';
1154         if (p == 2) c='*';
1155         if (p == 3) c='\n';
1156         BIO_write((BIO *)arg,&c,1);
1157         (void)BIO_flush((BIO *)arg);
1158 #ifdef LINT
1159         p=n;
1160 #endif
1161         }
1162
1163 static int req_fix_data(int nid, int *type, int len, int min, int max)
1164         {
1165         if(type) {
1166                 if (nid == NID_pkcs9_emailAddress)
1167                         *type=V_ASN1_IA5STRING;
1168                 if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1169                         *type=V_ASN1_T61STRING;
1170                 if ((nid == NID_pkcs9_challengePassword) &&
1171                         (*type == V_ASN1_IA5STRING))
1172                         *type=V_ASN1_T61STRING;
1173
1174                 if ((nid == NID_pkcs9_unstructuredName) &&
1175                         (*type == V_ASN1_T61STRING))
1176                         {
1177                         BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1178                         return(0);
1179                         }
1180                 if (nid == NID_pkcs9_unstructuredName)
1181                         *type=V_ASN1_IA5STRING;
1182         }
1183         if (len < min)
1184                 {
1185                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1186                 return(0);
1187                 }
1188         if ((max != 0) && (len > max))
1189                 {
1190                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1191                 return(0);
1192                 }
1193         return(1);
1194         }
1195
1196 /* Check if the end of a string matches 'end' */
1197 static int check_end(char *str, char *end)
1198 {
1199         int elen, slen; 
1200         char *tmp;
1201         elen = strlen(end);
1202         slen = strlen(str);
1203         if(elen > slen) return 1;
1204         tmp = str + slen - elen;
1205         return strcmp(tmp, end);
1206 }
1207
1208 static int add_oid_section(LHASH *conf)
1209 {       
1210         char *p;
1211         STACK_OF(CONF_VALUE) *sktmp;
1212         CONF_VALUE *cnf;
1213         int i;
1214         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1215         if(!(sktmp = CONF_get_section(conf, p))) {
1216                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1217                 return 0;
1218         }
1219         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1220                 cnf = sk_CONF_VALUE_value(sktmp, i);
1221                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1222                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1223                                                          cnf->name, cnf->value);
1224                         return 0;
1225                 }
1226         }
1227         return 1;
1228 }