7459f7b7da99de20c0e5fa8d3195f2a3132fb692
[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/rand.h>
70 #include <openssl/conf.h>
71 #include <openssl/err.h>
72 #include <openssl/asn1.h>
73 #include <openssl/x509.h>
74 #include <openssl/x509v3.h>
75 #include <openssl/objects.h>
76 #include <openssl/pem.h>
77
78 #define SECTION         "req"
79
80 #define BITS            "default_bits"
81 #define KEYFILE         "default_keyfile"
82 #define DISTINGUISHED_NAME      "distinguished_name"
83 #define ATTRIBUTES      "attributes"
84 #define V3_EXTENSIONS   "x509_extensions"
85
86 #define DEFAULT_KEY_LENGTH      512
87 #define MIN_KEY_LENGTH          384
88
89 #undef PROG
90 #define PROG    req_main
91
92 /* -inform arg  - input format - default PEM (one of DER, TXT or PEM)
93  * -outform arg - output format - default PEM
94  * -in arg      - input file - default stdin
95  * -out arg     - output file - default stdout
96  * -verify      - check request signature
97  * -noout       - don't print stuff out.
98  * -text        - print out human readable text.
99  * -nodes       - no des encryption
100  * -config file - Load configuration file.
101  * -key file    - make a request using key in file (or use it for verification).
102  * -keyform     - key file format.
103  * -newkey      - make a key and a request.
104  * -modulus     - print RSA modulus.
105  * -x509        - output a self signed X509 structure instead.
106  * -asn1-kludge - output new certificate request in a format that some CA's
107  *                require.  This format is wrong
108  */
109
110 static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
111 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
112                                 char *def, char *value, int nid, int min,
113                                 int max);
114 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
115         int nid,int min,int max);
116 static void MS_CALLBACK req_cb(int p,int n,char *arg);
117 static int req_fix_data(int nid,int *type,int len,int min,int max);
118 static int check_end(char *str, char *end);
119 static int add_oid_section(LHASH *conf);
120 #ifndef MONOLITH
121 static char *default_config_file=NULL;
122 static LHASH *config=NULL;
123 #endif
124 static LHASH *req_conf=NULL;
125
126 #define TYPE_RSA        1
127 #define TYPE_DSA        2
128 #define TYPE_DH         3
129
130 int MAIN(int argc, char **argv)
131         {
132 #ifndef NO_DSA
133         DSA *dsa_params=NULL;
134 #endif
135         int ex=1,x509=0,days=30;
136         X509 *x509ss=NULL;
137         X509_REQ *req=NULL;
138         EVP_PKEY *pkey=NULL;
139         int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
140         BIO *in=NULL,*out=NULL;
141         int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
142         int nodes=0,kludge=0;
143         char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
144         char *extensions = NULL;
145         EVP_CIPHER *cipher=NULL;
146         int modulus=0;
147         char *p;
148         const EVP_MD *md_alg=NULL,*digest=EVP_md5();
149 #ifndef MONOLITH
150         MS_STATIC char config_name[256];
151 #endif
152
153 #ifndef NO_DES
154         cipher=EVP_des_ede3_cbc();
155 #endif
156         apps_startup();
157
158         if (bio_err == NULL)
159                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
160                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
161
162         infile=NULL;
163         outfile=NULL;
164         informat=FORMAT_PEM;
165         outformat=FORMAT_PEM;
166
167         prog=argv[0];
168         argc--;
169         argv++;
170         while (argc >= 1)
171                 {
172                 if      (strcmp(*argv,"-inform") == 0)
173                         {
174                         if (--argc < 1) goto bad;
175                         informat=str2fmt(*(++argv));
176                         }
177                 else if (strcmp(*argv,"-outform") == 0)
178                         {
179                         if (--argc < 1) goto bad;
180                         outformat=str2fmt(*(++argv));
181                         }
182                 else if (strcmp(*argv,"-key") == 0)
183                         {
184                         if (--argc < 1) goto bad;
185                         keyfile= *(++argv);
186                         }
187                 else if (strcmp(*argv,"-new") == 0)
188                         {
189                         pkey_type=TYPE_RSA;
190                         newreq=1;
191                         }
192                 else if (strcmp(*argv,"-config") == 0)
193                         {       
194                         if (--argc < 1) goto bad;
195                         template= *(++argv);
196                         }
197                 else if (strcmp(*argv,"-keyform") == 0)
198                         {
199                         if (--argc < 1) goto bad;
200                         keyform=str2fmt(*(++argv));
201                         }
202                 else if (strcmp(*argv,"-in") == 0)
203                         {
204                         if (--argc < 1) goto bad;
205                         infile= *(++argv);
206                         }
207                 else if (strcmp(*argv,"-out") == 0)
208                         {
209                         if (--argc < 1) goto bad;
210                         outfile= *(++argv);
211                         }
212                 else if (strcmp(*argv,"-keyout") == 0)
213                         {
214                         if (--argc < 1) goto bad;
215                         keyout= *(++argv);
216                         }
217                 else if (strcmp(*argv,"-newkey") == 0)
218                         {
219                         int is_numeric;
220
221                         if (--argc < 1) goto bad;
222                         p= *(++argv);
223                         is_numeric = p[0] >= '0' && p[0] <= '9';
224                         if (strncmp("rsa:",p,4) == 0 || is_numeric)
225                                 {
226                                 pkey_type=TYPE_RSA;
227                                 if(!is_numeric)
228                                     p+=4;
229                                 newkey= atoi(p);
230                                 }
231                         else
232 #ifndef NO_DSA
233                                 if (strncmp("dsa:",p,4) == 0)
234                                 {
235                                 X509 *xtmp=NULL;
236                                 EVP_PKEY *dtmp;
237
238                                 pkey_type=TYPE_DSA;
239                                 p+=4;
240                                 if ((in=BIO_new_file(p,"r")) == NULL)
241                                         {
242                                         perror(p);
243                                         goto end;
244                                         }
245                                 if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL)) == NULL)
246                                         {
247                                         ERR_clear_error();
248                                         BIO_reset(in);
249                                         if ((xtmp=PEM_read_bio_X509(in,NULL,NULL)) == NULL)
250                                                 {
251                                                 BIO_printf(bio_err,"unable to load DSA parameters from file\n");
252                                                 goto end;
253                                                 }
254
255                                         dtmp=X509_get_pubkey(xtmp);
256                                         if (dtmp->type == EVP_PKEY_DSA)
257                                                 dsa_params=DSAparams_dup(dtmp->pkey.dsa);
258                                         EVP_PKEY_free(dtmp);
259                                         X509_free(xtmp);
260                                         if (dsa_params == NULL)
261                                                 {
262                                                 BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
263                                                 goto end;
264                                                 }
265                                         }
266                                 BIO_free(in);
267                                 newkey=BN_num_bits(dsa_params->p);
268                                 in=NULL;
269                                 }
270                         else 
271 #endif
272 #ifndef NO_DH
273                                 if (strncmp("dh:",p,4) == 0)
274                                 {
275                                 pkey_type=TYPE_DH;
276                                 p+=3;
277                                 }
278                         else
279 #endif
280                                 pkey_type=TYPE_RSA;
281
282                         newreq=1;
283                         }
284                 else if (strcmp(*argv,"-modulus") == 0)
285                         modulus=1;
286                 else if (strcmp(*argv,"-verify") == 0)
287                         verify=1;
288                 else if (strcmp(*argv,"-nodes") == 0)
289                         nodes=1;
290                 else if (strcmp(*argv,"-noout") == 0)
291                         noout=1;
292                 else if (strcmp(*argv,"-text") == 0)
293                         text=1;
294                 else if (strcmp(*argv,"-x509") == 0)
295                         x509=1;
296                 else if (strcmp(*argv,"-asn1-kludge") == 0)
297                         kludge=1;
298                 else if (strcmp(*argv,"-no-asn1-kludge") == 0)
299                         kludge=0;
300                 else if (strcmp(*argv,"-days") == 0)
301                         {
302                         if (--argc < 1) goto bad;
303                         days= atoi(*(++argv));
304                         if (days == 0) days=30;
305                         }
306                 else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
307                         {
308                         /* ok */
309                         digest=md_alg;
310                         }
311                 else
312
313                         {
314                         BIO_printf(bio_err,"unknown option %s\n",*argv);
315                         badops=1;
316                         break;
317                         }
318                 argc--;
319                 argv++;
320                 }
321
322         if (badops)
323                 {
324 bad:
325                 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
326                 BIO_printf(bio_err,"where options  are\n");
327                 BIO_printf(bio_err," -inform arg    input format - one of DER TXT PEM\n");
328                 BIO_printf(bio_err," -outform arg   output format - one of DER TXT PEM\n");
329                 BIO_printf(bio_err," -in arg        input file\n");
330                 BIO_printf(bio_err," -out arg       output file\n");
331                 BIO_printf(bio_err," -text          text form of request\n");
332                 BIO_printf(bio_err," -noout         do not output REQ\n");
333                 BIO_printf(bio_err," -verify        verify signature on REQ\n");
334                 BIO_printf(bio_err," -modulus       RSA modulus\n");
335                 BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
336                 BIO_printf(bio_err," -key file  use the private key contained in file\n");
337                 BIO_printf(bio_err," -keyform arg   key file format\n");
338                 BIO_printf(bio_err," -keyout arg    file to send the key to\n");
339                 BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
340                 BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
341
342                 BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
343                 BIO_printf(bio_err," -config file   request template file.\n");
344                 BIO_printf(bio_err," -new           new request.\n");
345                 BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
346                 BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
347                 BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
348                 BIO_printf(bio_err,"                have been reported as requiring\n");
349                 BIO_printf(bio_err,"                [ It is now always turned on but can be turned off with -no-asn1-kludge ]\n");
350                 goto end;
351                 }
352
353         ERR_load_crypto_strings();
354         X509V3_add_standard_extensions();
355
356 #ifndef MONOLITH
357         /* Lets load up our environment a little */
358         p=getenv("OPENSSL_CONF");
359         if (p == NULL)
360                 p=getenv("SSLEAY_CONF");
361         if (p == NULL)
362                 {
363                 strcpy(config_name,X509_get_default_cert_area());
364                 strcat(config_name,"/lib/");
365                 strcat(config_name,OPENSSL_CONF);
366                 p=config_name;
367                 }
368         default_config_file=p;
369         config=CONF_load(config,p,NULL);
370 #endif
371
372         if (template != NULL)
373                 {
374                 long errline;
375
376                 BIO_printf(bio_err,"Using configuration from %s\n",template);
377                 req_conf=CONF_load(NULL,template,&errline);
378                 if (req_conf == NULL)
379                         {
380                         BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
381                         goto end;
382                         }
383                 }
384         else
385                 {
386                 req_conf=config;
387                 BIO_printf(bio_err,"Using configuration from %s\n",
388                         default_config_file);
389                 if (req_conf == NULL)
390                         {
391                         BIO_printf(bio_err,"Unable to load config info\n");
392                         }
393                 }
394
395         if (req_conf != NULL)
396                 {
397                 p=CONF_get_string(req_conf,NULL,"oid_file");
398                 if (p != NULL)
399                         {
400                         BIO *oid_bio;
401
402                         oid_bio=BIO_new_file(p,"r");
403                         if (oid_bio == NULL) 
404                                 {
405                                 /*
406                                 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
407                                 ERR_print_errors(bio_err);
408                                 */
409                                 }
410                         else
411                                 {
412                                 OBJ_create_objects(oid_bio);
413                                 BIO_free(oid_bio);
414                                 }
415                         }
416                 }
417                 if(!add_oid_section(req_conf)) goto end;
418
419         if ((md_alg == NULL) &&
420                 ((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
421                 {
422                 if ((md_alg=EVP_get_digestbyname(p)) != NULL)
423                         digest=md_alg;
424                 }
425
426         extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
427         if(extensions) {
428                 /* Check syntax of file */
429                 X509V3_CTX ctx;
430                 X509V3_set_ctx_test(&ctx);
431                 X509V3_set_conf_lhash(&ctx, req_conf);
432                 if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
433                         BIO_printf(bio_err,
434                          "Error Loading extension section %s\n", extensions);
435                         goto end;
436                 }
437         }
438
439         in=BIO_new(BIO_s_file());
440         out=BIO_new(BIO_s_file());
441         if ((in == NULL) || (out == NULL))
442                 goto end;
443
444         if (keyfile != NULL)
445                 {
446                 if (BIO_read_filename(in,keyfile) <= 0)
447                         {
448                         perror(keyfile);
449                         goto end;
450                         }
451
452 /*              if (keyform == FORMAT_ASN1)
453                         rsa=d2i_RSAPrivateKey_bio(in,NULL);
454                 else */
455                 if (keyform == FORMAT_PEM)
456                         pkey=PEM_read_bio_PrivateKey(in,NULL,NULL);
457                 else
458                         {
459                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
460                         goto end;
461                         }
462
463                 if (pkey == NULL)
464                         {
465                         BIO_printf(bio_err,"unable to load Private key\n");
466                         goto end;
467                         }
468                 }
469
470         if (newreq && (pkey == NULL))
471                 {
472                 char *randfile;
473                 char buffer[200];
474
475                 if ((randfile=CONF_get_string(req_conf,SECTION,"RANDFILE")) == NULL)
476                         randfile=RAND_file_name(buffer,200);
477 #ifdef WINDOWS
478                 BIO_printf(bio_err,"Loading 'screen' into random state -");
479                 BIO_flush(bio_err);
480                 RAND_screen();
481                 BIO_printf(bio_err," done\n");
482 #endif
483                 if ((randfile == NULL) || !RAND_load_file(randfile,1024L*1024L))
484                         {
485                         BIO_printf(bio_err,"unable to load 'random state'\n");
486                         BIO_printf(bio_err,"What this means is that the random number generator has not been seeded\n");
487                         BIO_printf(bio_err,"with much random data.\n");
488                         BIO_printf(bio_err,"Consider setting the RANDFILE environment variable to point at a file that\n");
489                         BIO_printf(bio_err,"'random' data can be kept in.\n");
490                         }
491                 if (newkey <= 0)
492                         {
493                         newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
494                         if (newkey <= 0)
495                                 newkey=DEFAULT_KEY_LENGTH;
496                         }
497
498                 if (newkey < MIN_KEY_LENGTH)
499                         {
500                         BIO_printf(bio_err,"private key length is too short,\n");
501                         BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
502                         goto end;
503                         }
504                 BIO_printf(bio_err,"Generating a %d bit %s private key\n",
505                         newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
506
507                 if ((pkey=EVP_PKEY_new()) == NULL) goto end;
508
509 #ifndef NO_RSA
510                 if (pkey_type == TYPE_RSA)
511                         {
512                         if (!EVP_PKEY_assign_RSA(pkey,
513                                 RSA_generate_key(newkey,0x10001,
514                                         req_cb,(char *)bio_err)))
515                                 goto end;
516                         }
517                 else
518 #endif
519 #ifndef NO_DSA
520                         if (pkey_type == TYPE_DSA)
521                         {
522                         if (!DSA_generate_key(dsa_params)) goto end;
523                         if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
524                         dsa_params=NULL;
525                         }
526 #endif
527
528                 if ((randfile == NULL) || (RAND_write_file(randfile) == 0))
529                         BIO_printf(bio_err,"unable to write 'random state'\n");
530
531                 if (pkey == NULL) goto end;
532
533                 if (keyout == NULL)
534                         keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
535
536                 if (keyout == NULL)
537                         {
538                         BIO_printf(bio_err,"writing new private key to stdout\n");
539                         BIO_set_fp(out,stdout,BIO_NOCLOSE);
540                         }
541                 else
542                         {
543                         BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
544                         if (BIO_write_filename(out,keyout) <= 0)
545                                 {
546                                 perror(keyout);
547                                 goto end;
548                                 }
549                         }
550
551                 p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
552                 if (p == NULL)
553                         p=CONF_get_string(req_conf,SECTION,"encrypt_key");
554                 if ((p != NULL) && (strcmp(p,"no") == 0))
555                         cipher=NULL;
556                 if (nodes) cipher=NULL;
557                 
558                 i=0;
559 loop:
560                 if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
561                         NULL,0,NULL))
562                         {
563                         if ((ERR_GET_REASON(ERR_peek_error()) ==
564                                 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
565                                 {
566                                 ERR_clear_error();
567                                 i++;
568                                 goto loop;
569                                 }
570                         goto end;
571                         }
572                 BIO_printf(bio_err,"-----\n");
573                 }
574
575         if (!newreq)
576                 {
577                 /* Since we are using a pre-existing certificate
578                  * request, the kludge 'format' info should not be
579                  * changed. */
580                 kludge= -1;
581                 if (infile == NULL)
582                         BIO_set_fp(in,stdin,BIO_NOCLOSE);
583                 else
584                         {
585                         if (BIO_read_filename(in,infile) <= 0)
586                                 {
587                                 perror(infile);
588                                 goto end;
589                                 }
590                         }
591
592                 if      (informat == FORMAT_ASN1)
593                         req=d2i_X509_REQ_bio(in,NULL);
594                 else if (informat == FORMAT_PEM)
595                         req=PEM_read_bio_X509_REQ(in,NULL,NULL);
596                 else
597                         {
598                         BIO_printf(bio_err,"bad input format specified for X509 request\n");
599                         goto end;
600                         }
601                 if (req == NULL)
602                         {
603                         BIO_printf(bio_err,"unable to load X509 request\n");
604                         goto end;
605                         }
606                 }
607
608         if (newreq || x509)
609                 {
610 #ifndef NO_DSA
611                 if (pkey->type == EVP_PKEY_DSA)
612                         digest=EVP_dss1();
613 #endif
614
615                 if (pkey == NULL)
616                         {
617                         BIO_printf(bio_err,"you need to specify a private key\n");
618                         goto end;
619                         }
620                 if (req == NULL)
621                         {
622                         req=X509_REQ_new();
623                         if (req == NULL)
624                                 {
625                                 goto end;
626                                 }
627
628                         i=make_REQ(req,pkey,!x509);
629                         if (kludge >= 0)
630                                 req->req_info->req_kludge=kludge;
631                         if (!i)
632                                 {
633                                 BIO_printf(bio_err,"problems making Certificate Request\n");
634                                 goto end;
635                                 }
636                         }
637                 if (x509)
638                         {
639                         EVP_PKEY *tmppkey;
640                         X509V3_CTX ext_ctx;
641                         if ((x509ss=X509_new()) == NULL) goto end;
642
643                         /* Set version to V3 */
644                         if(!X509_set_version(x509ss, 2)) goto end;
645                         ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
646
647                         X509_set_issuer_name(x509ss,
648                                 X509_REQ_get_subject_name(req));
649                         X509_gmtime_adj(X509_get_notBefore(x509ss),0);
650                         X509_gmtime_adj(X509_get_notAfter(x509ss),
651                                 (long)60*60*24*days);
652                         X509_set_subject_name(x509ss,
653                                 X509_REQ_get_subject_name(req));
654                         tmppkey = X509_REQ_get_pubkey(req);
655                         X509_set_pubkey(x509ss,tmppkey);
656                         EVP_PKEY_free(tmppkey);
657
658                         /* Set up V3 context struct */
659
660                         X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
661                         X509V3_set_conf_lhash(&ext_ctx, req_conf);
662
663                         /* Add extensions */
664                         if(extensions && !X509V3_EXT_add_conf(req_conf, 
665                                         &ext_ctx, extensions, x509ss))
666                             {
667                             BIO_printf(bio_err,
668                                        "Error Loading extension section %s\n",
669                                        extensions);
670                             goto end;
671                             }
672
673                         if (!(i=X509_sign(x509ss,pkey,digest)))
674                                 goto end;
675                         }
676                 else
677                         {
678                         if (!(i=X509_REQ_sign(req,pkey,digest)))
679                                 goto end;
680                         }
681                 }
682
683         if (verify && !x509)
684                 {
685                 int tmp=0;
686
687                 if (pkey == NULL)
688                         {
689                         pkey=X509_REQ_get_pubkey(req);
690                         tmp=1;
691                         if (pkey == NULL) goto end;
692                         }
693
694                 i=X509_REQ_verify(req,pkey);
695                 if (tmp) {
696                         EVP_PKEY_free(pkey);
697                         pkey=NULL;
698                 }
699
700                 if (i < 0)
701                         {
702                         goto end;
703                         }
704                 else if (i == 0)
705                         {
706                         BIO_printf(bio_err,"verify failure\n");
707                         }
708                 else /* if (i > 0) */
709                         BIO_printf(bio_err,"verify OK\n");
710                 }
711
712         if (noout && !text && !modulus)
713                 {
714                 ex=0;
715                 goto end;
716                 }
717
718         if (outfile == NULL)
719                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
720         else
721                 {
722                 if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
723                         i=(int)BIO_append_filename(out,outfile);
724                 else
725                         i=(int)BIO_write_filename(out,outfile);
726                 if (!i)
727                         {
728                         perror(outfile);
729                         goto end;
730                         }
731                 }
732
733         if (text)
734                 {
735                 if (x509)
736                         X509_print(out,x509ss);
737                 else    
738                         X509_REQ_print(out,req);
739                 }
740
741         if (modulus)
742                 {
743                 EVP_PKEY *pubkey;
744
745                 if (x509)
746                         pubkey=X509_get_pubkey(x509ss);
747                 else
748                         pubkey=X509_REQ_get_pubkey(req);
749                 if (pubkey == NULL)
750                         {
751                         fprintf(stdout,"Modulus=unavailable\n");
752                         goto end; 
753                         }
754                 fprintf(stdout,"Modulus=");
755 #ifndef NO_RSA
756                 if (pubkey->type == EVP_PKEY_RSA)
757                         BN_print(out,pubkey->pkey.rsa->n);
758                 else
759 #endif
760                         fprintf(stdout,"Wrong Algorithm type");
761                 fprintf(stdout,"\n");
762                 }
763
764         if (!noout && !x509)
765                 {
766                 if      (outformat == FORMAT_ASN1)
767                         i=i2d_X509_REQ_bio(out,req);
768                 else if (outformat == FORMAT_PEM)
769                         i=PEM_write_bio_X509_REQ(out,req);
770                 else    {
771                         BIO_printf(bio_err,"bad output format specified for outfile\n");
772                         goto end;
773                         }
774                 if (!i)
775                         {
776                         BIO_printf(bio_err,"unable to write X509 request\n");
777                         goto end;
778                         }
779                 }
780         if (!noout && x509 && (x509ss != NULL))
781                 {
782                 if      (outformat == FORMAT_ASN1)
783                         i=i2d_X509_bio(out,x509ss);
784                 else if (outformat == FORMAT_PEM)
785                         i=PEM_write_bio_X509(out,x509ss);
786                 else    {
787                         BIO_printf(bio_err,"bad output format specified for outfile\n");
788                         goto end;
789                         }
790                 if (!i)
791                         {
792                         BIO_printf(bio_err,"unable to write X509 certificate\n");
793                         goto end;
794                         }
795                 }
796         ex=0;
797 end:
798         if (ex)
799                 {
800                 ERR_print_errors(bio_err);
801                 }
802         if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
803         BIO_free(in);
804         BIO_free(out);
805         EVP_PKEY_free(pkey);
806         X509_REQ_free(req);
807         X509_free(x509ss);
808         X509V3_EXT_cleanup();
809         OBJ_cleanup();
810 #ifndef NO_DSA
811         if (dsa_params != NULL) DSA_free(dsa_params);
812 #endif
813         EXIT(ex);
814         }
815
816 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
817         {
818         int ret=0,i;
819         char *p,*q;
820         X509_REQ_INFO *ri;
821         char buf[100];
822         int nid,min,max;
823         char *type,*def,*tmp,*value,*tmp_attr;
824         STACK *sk,*attr=NULL;
825         CONF_VALUE *v;
826         
827         tmp=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
828         if (tmp == NULL)
829                 {
830                 BIO_printf(bio_err,"unable to find '%s' in config\n",
831                         DISTINGUISHED_NAME);
832                 goto err;
833                 }
834         sk=CONF_get_section(req_conf,tmp);
835         if (sk == NULL)
836                 {
837                 BIO_printf(bio_err,"unable to get '%s' section\n",tmp);
838                 goto err;
839                 }
840
841         tmp_attr=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
842         if (tmp_attr == NULL)
843                 attr=NULL;
844         else
845                 {
846                 attr=CONF_get_section(req_conf,tmp_attr);
847                 if (attr == NULL)
848                         {
849                         BIO_printf(bio_err,"unable to get '%s' section\n",tmp_attr);
850                         goto err;
851                         }
852                 }
853
854         ri=req->req_info;
855
856         BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
857         BIO_printf(bio_err,"into your certificate request.\n");
858         BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
859         BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
860         BIO_printf(bio_err,"For some fields there will be a default value,\n");
861         BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
862         BIO_printf(bio_err,"-----\n");
863
864         /* setup version number */
865         if (!ASN1_INTEGER_set(ri->version,0L)) goto err; /* version 1 */
866
867         if (sk_num(sk))
868                 {
869                 i= -1;
870 start:          for (;;)
871                         {
872                         i++;
873                         if ((int)sk_num(sk) <= i) break;
874
875                         v=(CONF_VALUE *)sk_value(sk,i);
876                         p=q=NULL;
877                         type=v->name;
878                         if(!check_end(type,"_min") || !check_end(type,"_max") ||
879                                 !check_end(type,"_default") ||
880                                          !check_end(type,"_value")) continue;
881                         /* Skip past any leading X. X: X, etc to allow for
882                          * multiple instances 
883                          */
884                         for(p = v->name; *p ; p++) 
885                                 if ((*p == ':') || (*p == ',') ||
886                                                          (*p == '.')) {
887                                         p++;
888                                         if(*p) type = p;
889                                         break;
890                                 }
891                         /* If OBJ not recognised ignore it */
892                         if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
893                         sprintf(buf,"%s_default",v->name);
894                         if ((def=CONF_get_string(req_conf,tmp,buf)) == NULL)
895                                 def="";
896                                 
897                         sprintf(buf,"%s_value",v->name);
898                         if ((value=CONF_get_string(req_conf,tmp,buf)) == NULL)
899                                 value=NULL;
900
901                         sprintf(buf,"%s_min",v->name);
902                         min=(int)CONF_get_number(req_conf,tmp,buf);
903
904                         sprintf(buf,"%s_max",v->name);
905                         max=(int)CONF_get_number(req_conf,tmp,buf);
906
907                         if (!add_DN_object(ri->subject,v->value,def,value,nid,
908                                 min,max))
909                                 goto err;
910                         }
911                 if (sk_X509_NAME_ENTRY_num(ri->subject->entries) == 0)
912                         {
913                         BIO_printf(bio_err,"error, no objects specified in config file\n");
914                         goto err;
915                         }
916
917                 if (attribs)
918                         {
919                         if ((attr != NULL) && (sk_num(attr) > 0))
920                                 {
921                                 BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
922                                 BIO_printf(bio_err,"to be sent with your certificate request\n");
923                                 }
924
925                         i= -1;
926 start2:                 for (;;)
927                                 {
928                                 i++;
929                                 if ((attr == NULL) || ((int)sk_num(attr) <= i))
930                                         break;
931
932                                 v=(CONF_VALUE *)sk_value(attr,i);
933                                 type=v->name;
934                                 if ((nid=OBJ_txt2nid(type)) == NID_undef)
935                                         goto start2;
936
937                                 sprintf(buf,"%s_default",type);
938                                 if ((def=CONF_get_string(req_conf,tmp_attr,buf))
939                                         == NULL)
940                                         def="";
941                                 
942                                 sprintf(buf,"%s_value",type);
943                                 if ((value=CONF_get_string(req_conf,tmp_attr,buf))
944                                         == NULL)
945                                         value=NULL;
946
947                                 sprintf(buf,"%s_min",type);
948                                 min=(int)CONF_get_number(req_conf,tmp_attr,buf);
949
950                                 sprintf(buf,"%s_max",type);
951                                 max=(int)CONF_get_number(req_conf,tmp_attr,buf);
952
953                                 if (!add_attribute_object(ri->attributes,
954                                         v->value,def,value,nid,min,max))
955                                         goto err;
956                                 }
957                         }
958                 }
959         else
960                 {
961                 BIO_printf(bio_err,"No template, please set one up.\n");
962                 goto err;
963                 }
964
965         X509_REQ_set_pubkey(req,pkey);
966
967         ret=1;
968 err:
969         return(ret);
970         }
971
972 static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
973              int nid, int min, int max)
974         {
975         int i,j,ret=0;
976         X509_NAME_ENTRY *ne=NULL;
977         MS_STATIC char buf[1024];
978
979         BIO_printf(bio_err,"%s [%s]:",text,def);
980         BIO_flush(bio_err);
981         if (value != NULL)
982                 {
983                 strcpy(buf,value);
984                 strcat(buf,"\n");
985                 BIO_printf(bio_err,"%s\n",value);
986                 }
987         else
988                 {
989                 buf[0]='\0';
990                 fgets(buf,1024,stdin);
991                 }
992
993         if (buf[0] == '\0') return(0);
994         else if (buf[0] == '\n')
995                 {
996                 if ((def == NULL) || (def[0] == '\0'))
997                         return(1);
998                 strcpy(buf,def);
999                 strcat(buf,"\n");
1000                 }
1001         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1002
1003         i=strlen(buf);
1004         if (buf[i-1] != '\n')
1005                 {
1006                 BIO_printf(bio_err,"weird input :-(\n");
1007                 return(0);
1008                 }
1009         buf[--i]='\0';
1010
1011         j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1012         if (req_fix_data(nid,&j,i,min,max) == 0)
1013                 goto err;
1014         if ((ne=X509_NAME_ENTRY_create_by_NID(NULL,nid,j,(unsigned char *)buf,
1015                 strlen(buf)))
1016                 == NULL) goto err;
1017         if (!X509_NAME_add_entry(n,ne,X509_NAME_entry_count(n),0))
1018                 goto err;
1019
1020         ret=1;
1021 err:
1022         if (ne != NULL) X509_NAME_ENTRY_free(ne);
1023         return(ret);
1024         }
1025
1026 static int add_attribute_object(STACK_OF(X509_ATTRIBUTE) *n, char *text,
1027                                 char *def, char *value, int nid, int min,
1028                                 int max)
1029         {
1030         int i,z;
1031         X509_ATTRIBUTE *xa=NULL;
1032         static char buf[1024];
1033         ASN1_BIT_STRING *bs=NULL;
1034         ASN1_TYPE *at=NULL;
1035
1036 start:
1037         BIO_printf(bio_err,"%s [%s]:",text,def);
1038         BIO_flush(bio_err);
1039         if (value != NULL)
1040                 {
1041                 strcpy(buf,value);
1042                 strcat(buf,"\n");
1043                 BIO_printf(bio_err,"%s\n",value);
1044                 }
1045         else
1046                 {
1047                 buf[0]='\0';
1048                 fgets(buf,1024,stdin);
1049                 }
1050
1051         if (buf[0] == '\0') return(0);
1052         else if (buf[0] == '\n')
1053                 {
1054                 if ((def == NULL) || (def[0] == '\0'))
1055                         return(1);
1056                 strcpy(buf,def);
1057                 strcat(buf,"\n");
1058                 }
1059         else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1060
1061         i=strlen(buf);
1062         if (buf[i-1] != '\n')
1063                 {
1064                 BIO_printf(bio_err,"weird input :-(\n");
1065                 return(0);
1066                 }
1067         buf[--i]='\0';
1068
1069         /* add object plus value */
1070         if ((xa=X509_ATTRIBUTE_new()) == NULL)
1071                 goto err;
1072         if ((xa->value.set=sk_ASN1_TYPE_new_null()) == NULL)
1073                 goto err;
1074         xa->set=1;
1075
1076         if (xa->object != NULL) ASN1_OBJECT_free(xa->object);
1077         xa->object=OBJ_nid2obj(nid);
1078
1079         if ((bs=ASN1_BIT_STRING_new()) == NULL) goto err;
1080
1081         bs->type=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
1082
1083         z=req_fix_data(nid,&bs->type,i,min,max);
1084         if (z == 0)
1085                 {
1086                 if (value == NULL)
1087                         goto start;
1088                 else    goto err;
1089                 }
1090
1091         if (!ASN1_STRING_set(bs,(unsigned char *)buf,i+1))
1092                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1093
1094         if ((at=ASN1_TYPE_new()) == NULL)
1095                 { BIO_printf(bio_err,"Malloc failure\n"); goto err; }
1096
1097         ASN1_TYPE_set(at,bs->type,(char *)bs);
1098         sk_ASN1_TYPE_push(xa->value.set,at);
1099         bs=NULL;
1100         at=NULL;
1101         /* only one item per attribute */
1102
1103         if (!sk_X509_ATTRIBUTE_push(n,xa)) goto err;
1104         return(1);
1105 err:
1106         if (xa != NULL) X509_ATTRIBUTE_free(xa);
1107         if (at != NULL) ASN1_TYPE_free(at);
1108         if (bs != NULL) ASN1_BIT_STRING_free(bs);
1109         return(0);
1110         }
1111
1112 static void MS_CALLBACK req_cb(int p, int n, char *arg)
1113         {
1114         char c='*';
1115
1116         if (p == 0) c='.';
1117         if (p == 1) c='+';
1118         if (p == 2) c='*';
1119         if (p == 3) c='\n';
1120         BIO_write((BIO *)arg,&c,1);
1121         BIO_flush((BIO *)arg);
1122 #ifdef LINT
1123         p=n;
1124 #endif
1125         }
1126
1127 static int req_fix_data(int nid, int *type, int len, int min, int max)
1128         {
1129         if (nid == NID_pkcs9_emailAddress)
1130                 *type=V_ASN1_IA5STRING;
1131         if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
1132                 *type=V_ASN1_T61STRING;
1133         if ((nid == NID_pkcs9_challengePassword) &&
1134                 (*type == V_ASN1_IA5STRING))
1135                 *type=V_ASN1_T61STRING;
1136
1137         if ((nid == NID_pkcs9_unstructuredName) &&
1138                 (*type == V_ASN1_T61STRING))
1139                 {
1140                 BIO_printf(bio_err,"invalid characters in string, please re-enter the string\n");
1141                 return(0);
1142                 }
1143         if (nid == NID_pkcs9_unstructuredName)
1144                 *type=V_ASN1_IA5STRING;
1145
1146         if (len < min)
1147                 {
1148                 BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1149                 return(0);
1150                 }
1151         if ((max != 0) && (len > max))
1152                 {
1153                 BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1154                 return(0);
1155                 }
1156         return(1);
1157         }
1158
1159 /* Check if the end of a string matches 'end' */
1160 static int check_end(char *str, char *end)
1161 {
1162         int elen, slen; 
1163         char *tmp;
1164         elen = strlen(end);
1165         slen = strlen(str);
1166         if(elen > slen) return 1;
1167         tmp = str + slen - elen;
1168         return strcmp(tmp, end);
1169 }
1170
1171 static int add_oid_section(LHASH *conf)
1172 {       
1173         char *p;
1174         STACK *sktmp;
1175         CONF_VALUE *cnf;
1176         int i;
1177         if(!(p=CONF_get_string(conf,NULL,"oid_section"))) return 1;
1178         if(!(sktmp = CONF_get_section(conf, p))) {
1179                 BIO_printf(bio_err, "problem loading oid section %s\n", p);
1180                 return 0;
1181         }
1182         for(i = 0; i < sk_num(sktmp); i++) {
1183                 cnf = (CONF_VALUE *)sk_value(sktmp, i);
1184                 if(OBJ_create(cnf->value, cnf->name, cnf->name) == NID_undef) {
1185                         BIO_printf(bio_err, "problem creating object %s=%s\n",
1186                                                          cnf->name, cnf->value);
1187                         return 0;
1188                 }
1189         }
1190         return 1;
1191 }