Forgot the self-documentation within req.
[openssl.git] / apps / req.c
1 /* apps/req.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  * 
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  * 
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  * 
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from 
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  * 
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * 
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <time.h>
62 #include <string.h>
63 #ifdef NO_STDIO
64 #define APPS_WIN16
65 #endif
66 #include "apps.h"
67 #include <openssl/bio.h>
68 #include <openssl/evp.h>
69 #include <openssl/conf.h>
70 #include <openssl/err.h>
71 #include <openssl/asn1.h>
72 #include <openssl/x509.h>
73 #include <openssl/x509v3.h>
74 #include <openssl/objects.h>
75 #include <openssl/pem.h>
76
77 #define SECTION         "req"
78
79 #define BITS            "default_bits"
80 #define KEYFILE         "default_keyfile"
81 #define PROMPT          "prompt"
82 #define DISTINGUISHED_NAME      "distinguished_name"
83 #define ATTRIBUTES      "attributes"
84 #define V3_EXTENSIONS   "x509_extensions"
85 #define REQ_EXTENSIONS  "req_extensions"
86 #define STRING_MASK     "string_mask"
87
88 #define DEFAULT_KEY_LENGTH      512
89 #define MIN_KEY_LENGTH          384
90
91 #undef PROG
92 #define PROG    req_main
93
94 /* -inform arg  - input format - default PEM (DER or PEM)
95  * -outform arg - output format - default PEM
96  * -in arg      - input file - default stdin
97  * -out arg     - output file - default stdout
98  * -verify      - check request signature
99  * -noout       - don't print stuff out.
100  * -text        - print out human readable text.
101  * -nodes       - no des encryption
102  * -config file - Load configuration file.
103  * -key file    - make a request using key in file (or use it for verification).
104  * -keyform     - key file format.
105  * -rand file(s) - load the file(s) into the PRNG.
106  * -newkey      - make a key and a request.
107  * -modulus     - print RSA modulus.
108  * -x509        - output a self signed X509 structure instead.
109  * -asn1-kludge - output new certificate request in a format that some CA's
110  *                require.  This format is wrong
111  */
112
113 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
114 static int prompt_info(X509_REQ *req,
115                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
116                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs);
117 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
118                                 STACK_OF(CONF_VALUE) *attr, int attribs);
119 static int add_attribute_object(X509_REQ *req, char *text,
120                                 char *def, char *value, int nid, int min,
121                                 int max);
122 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
123         int nid,int min,int max);
124 #ifndef NO_RSA
125 static void MS_CALLBACK req_cb(int p,int n,void *arg);
126 #endif
127 static int req_check_len(int len,int min,int max);
128 static int check_end(char *str, char *end);
129 static int add_oid_section(LHASH *conf);
130 #ifndef MONOLITH
131 static char *default_config_file=NULL;
132 static LHASH *config=NULL;
133 #endif
134 static LHASH *req_conf=NULL;
135
136 #define TYPE_RSA        1
137 #define TYPE_DSA        2
138 #define TYPE_DH         3
139
140 int MAIN(int, char **);
141
142 int MAIN(int argc, char **argv)
143         {
144 #ifndef NO_DSA
145         DSA *dsa_params=NULL;
146 #endif
147         int ex=1,x509=0,days=30;
148         X509 *x509ss=NULL;
149         X509_REQ *req=NULL;
150         EVP_PKEY *pkey=NULL;
151         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
152         BIO *in=NULL,*out=NULL;
153         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
154         int nodes=0,kludge=0,newhdr=0;
155         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
156         char *extensions = NULL;
157         char *req_exts = NULL;
158         EVP_CIPHER *cipher=NULL;
159         int modulus=0;
160         char *inrand=NULL;
161         char *passargin = NULL, *passargout = NULL;
162         char *passin = NULL, *passout = NULL;
163         char *p;
164         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
165 #ifndef MONOLITH
166         MS_STATIC char config_name[256];
167 #endif
168
169         req_conf = NULL;
170 #ifndef NO_DES
171         cipher=EVP_des_ede3_cbc();
172 #endif
173         apps_startup();
174
175         if (bio_err == NULL)
176                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
177                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
178
179         infile=NULL;
180         outfile=NULL;
181         informat=FORMAT_PEM;
182         outformat=FORMAT_PEM;
183
184         prog=argv[0];
185         argc--;
186         argv++;
187         while (argc >= 1)
188                 {
189                 if      (strcmp(*argv,"-inform") == 0)
190                         {
191                         if (--argc < 1) goto bad;
192                         informat=str2fmt(*(++argv));
193                         }
194                 else if (strcmp(*argv,"-outform") == 0)
195                         {
196                         if (--argc < 1) goto bad;
197                         outformat=str2fmt(*(++argv));
198                         }
199                 else if (strcmp(*argv,"-key") == 0)
200                         {
201                         if (--argc < 1) goto bad;
202                         keyfile= *(++argv);
203                         }
204                 else if (strcmp(*argv,"-new") == 0)
205                         {
206                         pkey_type=TYPE_RSA;
207                         newreq=1;
208                         }
209                 else if (strcmp(*argv,"-config") == 0)
210                         {       
211                         if (--argc < 1) goto bad;
212                         template= *(++argv);
213                         }
214                 else if (strcmp(*argv,"-keyform") == 0)
215                         {
216                         if (--argc < 1) goto bad;
217                         keyform=str2fmt(*(++argv));
218                         }
219                 else if (strcmp(*argv,"-in") == 0)
220                         {
221                         if (--argc < 1) goto bad;
222                         infile= *(++argv);
223                         }
224                 else if (strcmp(*argv,"-out") == 0)
225                         {
226                         if (--argc < 1) goto bad;
227                         outfile= *(++argv);
228                         }
229                 else if (strcmp(*argv,"-keyout") == 0)
230                         {
231                         if (--argc < 1) goto bad;
232                         keyout= *(++argv);
233                         }
234                 else if (strcmp(*argv,"-passin") == 0)
235                         {
236                         if (--argc < 1) goto bad;
237                         passargin= *(++argv);
238                         }
239                 else if (strcmp(*argv,"-passout") == 0)
240                         {
241                         if (--argc < 1) goto bad;
242                         passargout= *(++argv);
243                         }
244                 else if (strcmp(*argv,"-rand") == 0)
245                         {
246                         if (--argc < 1) goto bad;
247                         inrand= *(++argv);
248                         }
249                 else if (strcmp(*argv,"-newkey") == 0)
250                         {
251                         int is_numeric;
252
253                         if (--argc < 1) goto bad;
254                         p= *(++argv);
255                         is_numeric = p[0] >= '0' && p[0] <= '9';
256                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
257                                 {
258                                 pkey_type=TYPE_RSA;
259                                 if(!is_numeric)
260                                     p+=4;
261                                 newkey= atoi(p);
262                                 }
263                         else
264 #ifndef NO_DSA
265                                 if (strncmp("dsa:",p,4) == 0)
266                                 {
267                                 X509 *xtmp=NULL;
268                                 EVP_PKEY *dtmp;
269
270                                 pkey_type=TYPE_DSA;
271                                 p+=4;
272                                 if ((in=BIO_new_file(p,"r")) == NULL)
273                                         {
274                                         perror(p);
275                                         goto end;
276                                         }
277                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
278                                         {
279                                         ERR_clear_error();
280                                         (void)BIO_reset(in);
281                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
282                                                 {
283                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
284                                                 goto end;
285                                                 }
286
287                                         dtmp=X509_get_pubkey(xtmp);
288                                         if (dtmp->type == EVP_PKEY_DSA)
289                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
290                                         EVP_PKEY_free(dtmp);
291                                         X509_free(xtmp);
292                                         if (dsa_params == NULL)
293                                                 {
294                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
295                                                 goto end;
296                                                 }
297                                         }
298                                 BIO_free(in);
299                                 newkey=BN_num_bits(dsa_params->p);
300                                 in=NULL;
301                                 }
302                         else 
303 #endif
304 #ifndef NO_DH
305                                 if (strncmp("dh:",p,4) == 0)
306                                 {
307                                 pkey_type=TYPE_DH;
308                                 p+=3;
309                                 }
310                         else
311 #endif
312                                 pkey_type=TYPE_RSA;
313
314                         newreq=1;
315                         }
316                 else if (strcmp(*argv,"-newhdr") == 0)
317                         newhdr=1;
318                 else if (strcmp(*argv,"-modulus") == 0)
319                         modulus=1;
320                 else if (strcmp(*argv,"-verify") == 0)
321                         verify=1;
322                 else if (strcmp(*argv,"-nodes") == 0)
323                         nodes=1;
324                 else if (strcmp(*argv,"-noout") == 0)
325                         noout=1;
326                 else if (strcmp(*argv,"-text") == 0)
327                         text=1;
328                 else if (strcmp(*argv,"-x509") == 0)
329                         x509=1;
330                 else if (strcmp(*argv,"-asn1-kludge") == 0)
331                         kludge=1;
332                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
333                         kludge=0;
334                 else if (strcmp(*argv,"-days") == 0)
335                         {
336                         if (--argc < 1) goto bad;
337                         days= atoi(*(++argv));
338                         if (days == 0) days=30;
339                         }
340                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
341                         {
342                         /* ok */
343                         digest=md_alg;
344                         }
345                 else if (strcmp(*argv,"-extensions") == 0)
346                         {
347                         if (--argc < 1) goto bad;
348                         extensions = *(++argv);
349                         }
350                 else if (strcmp(*argv,"-reqexts") == 0)
351                         {
352                         if (--argc < 1) goto bad;
353                         req_exts = *(++argv);
354                         }
355                 else
356                         {
357                         BIO_printf(bio_err,"unknown option %s\n",*argv);
358                         badops=1;
359                         break;
360                         }
361                 argc--;
362                 argv++;
363                 }
364
365         if (badops)
366                 {
367 bad:
368                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
369                 BIO_printf(bio_err,"where options  are\n");
370                 BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
371                 BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
372                 BIO_printf(bio_err," -in arg        input file\n");
373                 BIO_printf(bio_err," -out arg       output file\n");
374                 BIO_printf(bio_err," -text          text form of request\n");
375                 BIO_printf(bio_err," -noout         do not output REQ\n");
376                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
377                 BIO_printf(bio_err," -modulus       RSA modulus\n");
378                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
379                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
380                 BIO_printf(bio_err," -keyform arg   key file format\n");
381                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
382                 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
383                 BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
384                 BIO_printf(bio_err,"                the random number generator\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," -newhdr        output \"NEW\" in the header lines\n");
394                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
395                 BIO_printf(bio_err,"                have been reported as requiring\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         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
403                 BIO_printf(bio_err, "Error getting passwords\n");
404                 goto end;
405         }
406
407 #ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
408         /* Lets load up our environment a little */
409         p=getenv("OPENSSL_CONF");
410         if (p == NULL)
411                 p=getenv("SSLEAY_CONF");
412         if (p == NULL)
413                 {
414                 strcpy(config_name,X509_get_default_cert_area());
415 #ifndef VMS
416                 strcat(config_name,"/");
417 #endif
418                 strcat(config_name,OPENSSL_CONF);
419                 p=config_name;
420                 }
421         default_config_file=p;
422         config=CONF_load(config,p,NULL);
423 #endif
424
425         if (template != NULL)
426                 {
427                 long errline;
428
429                 BIO_printf(bio_err,"Using configuration from %s\n",template);
430                 req_conf=CONF_load(NULL,template,&errline);
431                 if (req_conf == NULL)
432                         {
433                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
434                         goto end;
435                         }
436                 }
437         else
438                 {
439                 req_conf=config;
440                 BIO_printf(bio_err,"Using configuration from %s\n",
441                         default_config_file);
442                 if (req_conf == NULL)
443                         {
444                         BIO_printf(bio_err,"Unable to load config info\n");
445                         }
446                 }
447
448         if (req_conf != NULL)
449                 {
450                 p=CONF_get_string(req_conf,NULL,"oid_file");
451                 if (p != NULL)
452                         {
453                         BIO *oid_bio;
454
455                         oid_bio=BIO_new_file(p,"r");
456                         if (oid_bio == NULL) 
457                                 {
458                                 /*
459                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
460                                 ERR_print_errors(bio_err);
461                                 */
462                                 }
463                         else
464                                 {
465                                 OBJ_create_objects(oid_bio);
466                                 BIO_free(oid_bio);
467                                 }
468                         }
469                 }
470                 if(!add_oid_section(req_conf)) goto end;
471
472         if ((md_alg == NULL) &&
473                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
474                 {
475                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
476                         digest=md_alg;
477                 }
478
479         if(!extensions)
480                 extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
481         if(extensions) {
482                 /* Check syntax of file */
483                 X509V3_CTX ctx;
484                 X509V3_set_ctx_test(&ctx);
485                 X509V3_set_conf_lhash(&ctx, req_conf);
486                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
487                         BIO_printf(bio_err,
488                          "Error Loading extension section %s\n", extensions);
489                         goto end;
490                 }
491         }
492
493         if(!passin)
494                 passin = CONF_get_string(req_conf, SECTION, "input_password");
495
496         if(!passout)
497                 passout = CONF_get_string(req_conf, SECTION, "output_password");
498
499         p = CONF_get_string(req_conf, SECTION, STRING_MASK);
500
501         if(p && !ASN1_STRING_set_default_mask_asc(p)) {
502                 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
503                 goto end;
504         }
505
506         if(!req_exts)
507                 req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
508         if(req_exts) {
509                 /* Check syntax of file */
510                 X509V3_CTX ctx;
511                 X509V3_set_ctx_test(&ctx);
512                 X509V3_set_conf_lhash(&ctx, req_conf);
513                 if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
514                         BIO_printf(bio_err,
515                          "Error Loading request extension section %s\n",
516                                                                 req_exts);
517                         goto end;
518                 }
519         }
520
521         in=BIO_new(BIO_s_file());
522         out=BIO_new(BIO_s_file());
523         if ((in == NULL) || (out == NULL))
524                 goto end;
525
526         if (keyfile != NULL)
527                 {
528                 if (BIO_read_filename(in,keyfile) <= 0)
529                         {
530                         perror(keyfile);
531                         goto end;
532                         }
533
534                 if (keyform == FORMAT_ASN1)
535                         pkey=d2i_PrivateKey_bio(in,NULL);
536                 else if (keyform == FORMAT_PEM)
537                         {
538                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin);
539                         }
540                 else
541                         {
542                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
543                         goto end;
544                         }
545
546                 if (pkey == NULL)
547                         {
548                         BIO_printf(bio_err,"unable to load Private key\n");
549                         goto end;
550                         }
551                 }
552
553         if (newreq && (pkey == NULL))
554                 {
555                 char *randfile;
556
557                 if (inrand)
558                         randfile = inrand;
559                 else
560                         randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
561                 app_RAND_load_file(randfile, bio_err, 0);
562         
563                 if (newkey <= 0)
564                         {
565                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
566                         if (newkey <= 0)
567                                 newkey=DEFAULT_KEY_LENGTH;
568                         }
569
570                 if (newkey < MIN_KEY_LENGTH)
571                         {
572                         BIO_printf(bio_err,"private key length is too short,\n");
573                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
574                         goto end;
575                         }
576                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
577                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
578
579                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
580
581 #ifndef NO_RSA
582                 if (pkey_type == TYPE_RSA)
583                         {
584                         if (!EVP_PKEY_assign_RSA(pkey,
585                                 RSA_generate_key(newkey,0x10001,
586                                         req_cb,bio_err)))
587                                 goto end;
588                         }
589                 else
590 #endif
591 #ifndef NO_DSA
592                         if (pkey_type == TYPE_DSA)
593                         {
594                         if (!DSA_generate_key(dsa_params)) goto end;
595                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
596                         dsa_params=NULL;
597                         }
598 #endif
599
600                 app_RAND_write_file(randfile, bio_err);
601
602                 if (pkey == NULL) goto end;
603
604                 if (keyout == NULL)
605                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
606
607                 if (keyout == NULL)
608                         {
609                         BIO_printf(bio_err,"writing new private key to stdout\n");
610                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
611                         }
612                 else
613                         {
614                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
615                         if (BIO_write_filename(out,keyout) <= 0)
616                                 {
617                                 perror(keyout);
618                                 goto end;
619                                 }
620                         }
621
622                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
623                 if (p == NULL)
624                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
625                 if ((p != NULL) && (strcmp(p,"no") == 0))
626                         cipher=NULL;
627                 if (nodes) cipher=NULL;
628                 
629                 i=0;
630 loop:
631                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
632                         NULL,0,NULL,passout))
633                         {
634                         if ((ERR_GET_REASON(ERR_peek_error()) ==
635                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
636                                 {
637                                 ERR_clear_error();
638                                 i++;
639                                 goto loop;
640                                 }
641                         goto end;
642                         }
643                 BIO_printf(bio_err,"-----\n");
644                 }
645
646         if (!newreq)
647                 {
648                 /* Since we are using a pre-existing certificate
649                  * request, the kludge 'format' info should not be
650                  * changed. */
651                 kludge= -1;
652                 if (infile == NULL)
653                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
654                 else
655                         {
656                         if (BIO_read_filename(in,infile) <= 0)
657                                 {
658                                 perror(infile);
659                                 goto end;
660                                 }
661                         }
662
663                 if      (informat == FORMAT_ASN1)
664                         req=d2i_X509_REQ_bio(in,NULL);
665                 else if (informat == FORMAT_PEM)
666                         req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
667                 else
668                         {
669                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
670                         goto end;
671                         }
672                 if (req == NULL)
673                         {
674                         BIO_printf(bio_err,"unable to load X509 request\n");
675                         goto end;
676                         }
677                 }
678
679         if (newreq || x509)
680                 {
681 #ifndef NO_DSA
682                 if (pkey->type == EVP_PKEY_DSA)
683                         digest=EVP_dss1();
684 #endif
685
686                 if (pkey == NULL)
687                         {
688                         BIO_printf(bio_err,"you need to specify a private key\n");
689                         goto end;
690                         }
691                 if (req == NULL)
692                         {
693                         req=X509_REQ_new();
694                         if (req == NULL)
695                                 {
696                                 goto end;
697                                 }
698
699                         i=make_REQ(req,pkey,!x509);
700                         if (kludge >= 0)
701                                 req->req_info->req_kludge=kludge;
702                         if (!i)
703                                 {
704                                 BIO_printf(bio_err,"problems making Certificate Request\n");
705                                 goto end;
706                                 }
707                         }
708                 if (x509)
709                         {
710                         EVP_PKEY *tmppkey;
711                         X509V3_CTX ext_ctx;
712                         if ((x509ss=X509_new()) == NULL) goto end;
713
714                         /* Set version to V3 */
715                         if(!X509_set_version(x509ss, 2)) goto end;
716                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
717
718                         X509_set_issuer_name(x509ss,
719                                 X509_REQ_get_subject_name(req));
720                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
721                         X509_gmtime_adj(X509_get_notAfter(x509ss),
722                                 (long)60*60*24*days);
723                         X509_set_subject_name(x509ss,
724                                 X509_REQ_get_subject_name(req));
725                         tmppkey = X509_REQ_get_pubkey(req);
726                         X509_set_pubkey(x509ss,tmppkey);
727                         EVP_PKEY_free(tmppkey);
728
729                         /* Set up V3 context struct */
730
731                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
732                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
733
734                         /* Add extensions */
735                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
736                                         &ext_ctx, extensions, x509ss))
737                             {
738                             BIO_printf(bio_err,
739                                        "Error Loading extension section %s\n",
740                                        extensions);
741                             goto end;
742                             }
743
744                         if (!(i=X509_sign(x509ss,pkey,digest)))
745                                 goto end;
746                         }
747                 else
748                         {
749                         X509V3_CTX ext_ctx;
750
751                         /* Set up V3 context struct */
752
753                         X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
754                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
755
756                         /* Add extensions */
757                         if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf, 
758                                         &ext_ctx, req_exts, req))
759                             {
760                             BIO_printf(bio_err,
761                                        "Error Loading extension section %s\n",
762                                        req_exts);
763                             goto end;
764                             }
765                         if (!(i=X509_REQ_sign(req,pkey,digest)))
766                                 goto end;
767                         }
768                 }
769
770         if (verify && !x509)
771                 {
772                 int tmp=0;
773
774                 if (pkey == NULL)
775                         {
776                         pkey=X509_REQ_get_pubkey(req);
777                         tmp=1;
778                         if (pkey == NULL) goto end;
779                         }
780
781                 i=X509_REQ_verify(req,pkey);
782                 if (tmp) {
783                         EVP_PKEY_free(pkey);
784                         pkey=NULL;
785                 }
786
787                 if (i < 0)
788                         {
789                         goto end;
790                         }
791                 else if (i == 0)
792                         {
793                         BIO_printf(bio_err,"verify failure\n");
794                         }
795                 else /* if (i > 0) */
796                         BIO_printf(bio_err,"verify OK\n");
797                 }
798
799         if (noout && !text && !modulus)
800                 {
801                 ex=0;
802                 goto end;
803                 }
804
805         if (outfile == NULL)
806                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
807         else
808                 {
809                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
810                         i=(int)BIO_append_filename(out,outfile);
811                 else
812                         i=(int)BIO_write_filename(out,outfile);
813                 if (!i)
814                         {
815                         perror(outfile);
816                         goto end;
817                         }
818                 }
819
820         if (text)
821                 {
822                 if (x509)
823                         X509_print(out,x509ss);
824                 else    
825                         X509_REQ_print(out,req);
826                 }
827
828         if (modulus)
829                 {
830                 EVP_PKEY *pubkey;
831
832                 if (x509)
833                         pubkey=X509_get_pubkey(x509ss);
834                 else
835                         pubkey=X509_REQ_get_pubkey(req);
836                 if (pubkey == NULL)
837                         {
838                         fprintf(stdout,"Modulus=unavailable\n");
839                         goto end; 
840                         }
841                 fprintf(stdout,"Modulus=");
842 #ifndef NO_RSA
843                 if (pubkey->type == EVP_PKEY_RSA)
844                         BN_print(out,pubkey->pkey.rsa->n);
845                 else
846 #endif
847                         fprintf(stdout,"Wrong Algorithm type");
848                 fprintf(stdout,"\n");
849                 }
850
851         if (!noout && !x509)
852                 {
853                 if      (outformat == FORMAT_ASN1)
854                         i=i2d_X509_REQ_bio(out,req);
855                 else if (outformat == FORMAT_PEM) {
856                         if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
857                         else i=PEM_write_bio_X509_REQ(out,req);
858                 } else {
859                         BIO_printf(bio_err,"bad output format specified for outfile\n");
860                         goto end;
861                         }
862                 if (!i)
863                         {
864                         BIO_printf(bio_err,"unable to write X509 request\n");
865                         goto end;
866                         }
867                 }
868         if (!noout && x509 && (x509ss != NULL))
869                 {
870                 if      (outformat == FORMAT_ASN1)
871                         i=i2d_X509_bio(out,x509ss);
872                 else if (outformat == FORMAT_PEM)
873                         i=PEM_write_bio_X509(out,x509ss);
874                 else    {
875                         BIO_printf(bio_err,"bad output format specified for outfile\n");
876                         goto end;
877                         }
878                 if (!i)
879                         {
880                         BIO_printf(bio_err,"unable to write X509 certificate\n");
881                         goto end;
882                         }
883                 }
884         ex=0;
885 end:
886         if (ex)
887                 {
888                 ERR_print_errors(bio_err);
889                 }
890         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
891         BIO_free(in);
892         BIO_free(out);
893         EVP_PKEY_free(pkey);
894         X509_REQ_free(req);
895         X509_free(x509ss);
896         if(passargin && passin) OPENSSL_free(passin);
897         if(passargout && passout) OPENSSL_free(passout);
898         OBJ_cleanup();
899 #ifndef NO_DSA
900         if (dsa_params != NULL) DSA_free(dsa_params);
901 #endif
902         EXIT(ex);
903         }
904
905 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
906         {
907         int ret=0,i;
908         char no_prompt = 0;
909         STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
910         char *tmp, *dn_sect,*attr_sect;
911
912         tmp=CONF_get_string(req_conf,SECTION,PROMPT);
913         if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
914
915         dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
916         if (dn_sect == NULL)
917                 {
918                 BIO_printf(bio_err,"unable to find '%s' in config\n",
919                         DISTINGUISHED_NAME);
920                 goto err;
921                 }
922         dn_sk=CONF_get_section(req_conf,dn_sect);
923         if (dn_sk == NULL)
924                 {
925                 BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
926                 goto err;
927                 }
928
929         attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
930         if (attr_sect == NULL)
931                 attr_sk=NULL;
932         else
933                 {
934                 attr_sk=CONF_get_section(req_conf,attr_sect);
935                 if (attr_sk == NULL)
936                         {
937                         BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
938                         goto err;
939                         }
940                 }
941
942         /* setup version number */
943         if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
944
945         if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
946         else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
947         if(!i) goto err;
948
949         X509_REQ_set_pubkey(req,pkey);
950
951         ret=1;
952 err:
953         return(ret);
954         }
955
956
957 static int prompt_info(X509_REQ *req,
958                 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
959                 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
960         {
961         int i;
962         char *p,*q;
963         char buf[100];
964         int nid,min,max;
965         char *type,*def,*value;
966         CONF_VALUE *v;
967         X509_NAME *subj;
968         subj = X509_REQ_get_subject_name(req);
969         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
970         BIO_printf(bio_err,"into your certificate request.\n");
971         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
972         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
973         BIO_printf(bio_err,"For some fields there will be a default value,\n");
974         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
975         BIO_printf(bio_err,"-----\n");
976
977
978         if (sk_CONF_VALUE_num(dn_sk))
979                 {
980                 i= -1;
981 start:          for (;;)
982                         {
983                         i++;
984                         if (sk_CONF_VALUE_num(dn_sk) <= i) break;
985
986                         v=sk_CONF_VALUE_value(dn_sk,i);
987                         p=q=NULL;
988                         type=v->name;
989                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
990                                 !check_end(type,"_default") ||
991                                          !check_end(type,"_value")) continue;
992                         /* Skip past any leading X. X: X, etc to allow for
993                          * multiple instances 
994                          */
995                         for(p = v->name; *p ; p++) 
996                                 if ((*p == ':') || (*p == ',') ||
997                                                          (*p == '.')) {
998                                         p++;
999                                         if(*p) type = p;
1000                                         break;
1001                                 }
1002                         /* If OBJ not recognised ignore it */
1003                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1004                         sprintf(buf,"%s_default",v->name);
1005                         if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1006                                 def="";
1007                                 
1008                         sprintf(buf,"%s_value",v->name);
1009                         if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1010                                 value=NULL;
1011
1012                         sprintf(buf,"%s_min",v->name);
1013                         min=(int)CONF_get_number(req_conf,dn_sect,buf);
1014
1015                         sprintf(buf,"%s_max",v->name);
1016                         max=(int)CONF_get_number(req_conf,dn_sect,buf);
1017
1018                         if (!add_DN_object(subj,v->value,def,value,nid,
1019                                 min,max))
1020                                 return 0;
1021                         }
1022                 if (X509_NAME_entry_count(subj) == 0)
1023                         {
1024                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1025                         return 0;
1026                         }
1027
1028                 if (attribs)
1029                         {
1030                         if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1031                                 {
1032                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1033                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
1034                                 }
1035
1036                         i= -1;
1037 start2:                 for (;;)
1038                                 {
1039                                 i++;
1040                                 if ((attr_sk == NULL) ||
1041                                             (sk_CONF_VALUE_num(attr_sk) <= i))
1042                                         break;
1043
1044                                 v=sk_CONF_VALUE_value(attr_sk,i);
1045                                 type=v->name;
1046                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
1047                                         goto start2;
1048
1049                                 sprintf(buf,"%s_default",type);
1050                                 if ((def=CONF_get_string(req_conf,attr_sect,buf))
1051                                         == NULL)
1052                                         def="";
1053                                 
1054                                 sprintf(buf,"%s_value",type);
1055                                 if ((value=CONF_get_string(req_conf,attr_sect,buf))
1056                                         == NULL)
1057                                         value=NULL;
1058
1059                                 sprintf(buf,"%s_min",type);
1060                                 min=(int)CONF_get_number(req_conf,attr_sect,buf);
1061
1062                                 sprintf(buf,"%s_max",type);
1063                                 max=(int)CONF_get_number(req_conf,attr_sect,buf);
1064
1065                                 if (!add_attribute_object(req,
1066                                         v->value,def,value,nid,min,max))
1067                                         return 0;
1068                                 }
1069                         }
1070                 }
1071         else
1072                 {
1073                 BIO_printf(bio_err,"No template, please set one up.\n");
1074                 return 0;
1075                 }
1076
1077         return 1;
1078
1079         }
1080
1081 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1082                         STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1083         {
1084         int i;
1085         char *p,*q;
1086         char *type;
1087         CONF_VALUE *v;
1088         X509_NAME *subj;
1089
1090         subj = X509_REQ_get_subject_name(req);
1091
1092         for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1093                 {
1094                 v=sk_CONF_VALUE_value(dn_sk,i);
1095                 p=q=NULL;
1096                 type=v->name;
1097                 /* Skip past any leading X. X: X, etc to allow for
1098                  * multiple instances 
1099                  */
1100                 for(p = v->name; *p ; p++) 
1101                         if ((*p == ':') || (*p == ',') || (*p == '.')) {
1102                                 p++;
1103                                 if(*p) type = p;
1104                                 break;
1105                         }
1106                 if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1107                                 (unsigned char *) v->value,-1,-1,0)) return 0;
1108
1109                 }
1110
1111                 if (!X509_NAME_entry_count(subj))
1112                         {
1113                         BIO_printf(bio_err,"error, no objects specified in config file\n");
1114                         return 0;
1115                         }
1116                 if (attribs)
1117                         {
1118                         for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1119                                 {
1120                                 v=sk_CONF_VALUE_value(attr_sk,i);
1121                                 if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC,
1122                                         (unsigned char *)v->value, -1)) return 0;
1123                                 }
1124                         }
1125         return 1;
1126         }
1127
1128
1129 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1130              int nid, int min, int max)
1131         {
1132         int i,ret=0;
1133         MS_STATIC char buf[1024];
1134 start:
1135         BIO_printf(bio_err,"%s [%s]:",text,def);
1136         (void)BIO_flush(bio_err);
1137         if (value != NULL)
1138                 {
1139                 strcpy(buf,value);
1140                 strcat(buf,"\n");
1141                 BIO_printf(bio_err,"%s\n",value);
1142                 }
1143         else
1144                 {
1145                 buf[0]='\0';
1146                 fgets(buf,1024,stdin);
1147                 }
1148
1149         if (buf[0] == '\0') return(0);
1150         else if (buf[0] == '\n')
1151                 {
1152                 if ((def == NULL) || (def[0] == '\0'))
1153                         return(1);
1154                 strcpy(buf,def);
1155                 strcat(buf,"\n");
1156                 }
1157         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1158
1159         i=strlen(buf);
1160         if (buf[i-1] != '\n')
1161                 {
1162                 BIO_printf(bio_err,"weird input :-(\n");
1163                 return(0);
1164                 }
1165         buf[--i]='\0';
1166
1167 #ifdef CHARSET_EBCDIC
1168         ebcdic2ascii(buf, buf, i);
1169 #endif
1170         if(!req_check_len(i, min, max)) goto start;
1171         if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1172                                 (unsigned char *) buf, -1,-1,0)) goto err;
1173         ret=1;
1174 err:
1175         return(ret);
1176         }
1177
1178 static int add_attribute_object(X509_REQ *req, char *text,
1179                                 char *def, char *value, int nid, int min,
1180                                 int max)
1181         {
1182         int i;
1183         static char buf[1024];
1184
1185 start:
1186         BIO_printf(bio_err,"%s [%s]:",text,def);
1187         (void)BIO_flush(bio_err);
1188         if (value != NULL)
1189                 {
1190                 strcpy(buf,value);
1191                 strcat(buf,"\n");
1192                 BIO_printf(bio_err,"%s\n",value);
1193                 }
1194         else
1195                 {
1196                 buf[0]='\0';
1197                 fgets(buf,1024,stdin);
1198                 }
1199
1200         if (buf[0] == '\0') return(0);
1201         else if (buf[0] == '\n')
1202                 {
1203                 if ((def == NULL) || (def[0] == '\0'))
1204                         return(1);
1205                 strcpy(buf,def);
1206                 strcat(buf,"\n");
1207                 }
1208         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1209
1210         i=strlen(buf);
1211         if (buf[i-1] != '\n')
1212                 {
1213                 BIO_printf(bio_err,"weird input :-(\n");
1214                 return(0);
1215                 }
1216         buf[--i]='\0';
1217         if(!req_check_len(i, min, max)) goto start;
1218
1219         if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC,
1220                                         (unsigned char *)buf, -1)) {
1221                 BIO_printf(bio_err, "Error adding attribute\n");
1222                 ERR_print_errors(bio_err);
1223                 goto err;
1224         }
1225
1226         return(1);
1227 err:
1228         return(0);
1229         }
1230
1231 #ifndef NO_RSA
1232 static void MS_CALLBACK req_cb(int p, int n, void *arg)
1233         {
1234         char c='*';
1235
1236         if (p == 0) c='.';
1237         if (p == 1) c='+';
1238         if (p == 2) c='*';
1239         if (p == 3) c='\n';
1240         BIO_write((BIO *)arg,&c,1);
1241         (void)BIO_flush((BIO *)arg);
1242 #ifdef LINT
1243         p=n;
1244 #endif
1245         }
1246 #endif
1247
1248 static int req_check_len(int len, int min, int max)
1249         {
1250         if (len < min)
1251                 {
1252                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1253                 return(0);
1254                 }
1255         if ((max != 0) && (len > max))
1256                 {
1257                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1258                 return(0);
1259                 }
1260         return(1);
1261         }
1262
1263 /* Check if the end of a string matches 'end' */
1264 static int check_end(char *str, char *end)
1265 {
1266         int elen, slen; 
1267         char *tmp;
1268         elen = strlen(end);
1269         slen = strlen(str);
1270         if(elen > slen) return 1;
1271         tmp = str + slen - elen;
1272         return strcmp(tmp, end);
1273 }
1274
1275 static int add_oid_section(LHASH *conf)
1276 {       
1277         char *p;
1278         STACK_OF(CONF_VALUE) *sktmp;
1279         CONF_VALUE *cnf;
1280         int i;
1281         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1282         if(!(sktmp = CONF_get_section(conf, p))) {
1283                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1284                 return 0;
1285         }
1286         for(i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
1287                 cnf = sk_CONF_VALUE_value(sktmp, i);
1288                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1289                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1290                                                          cnf->name, cnf->value);
1291                         return 0;
1292                 }
1293         }
1294         return 1;
1295 }