req.c revision 68651 
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
113static int make_REQ(X509_REQ *req,EVP_PKEY *pkey,int attribs);
114static 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);
117static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
118				STACK_OF(CONF_VALUE) *attr, int attribs);
119static int add_attribute_object(X509_REQ *req, char *text,
120				char *def, char *value, int nid, int min,
121				int max);
122static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
123	int nid,int min,int max);
124#ifndef NO_RSA
125static void MS_CALLBACK req_cb(int p,int n,void *arg);
126#endif
127static int req_check_len(int len,int min,int max);
128static int check_end(char *str, char *end);
129#ifndef MONOLITH
130static char *default_config_file=NULL;
131static LHASH *config=NULL;
132#endif
133static LHASH *req_conf=NULL;
134
135#define TYPE_RSA	1
136#define TYPE_DSA	2
137#define TYPE_DH		3
138
139int MAIN(int, char **);
140
141int MAIN(int argc, char **argv)
142	{
143#ifndef NO_DSA
144	DSA *dsa_params=NULL;
145#endif
146	int ex=1,x509=0,days=30;
147	X509 *x509ss=NULL;
148	X509_REQ *req=NULL;
149	EVP_PKEY *pkey=NULL;
150	int i,badops=0,newreq=0,newkey= -1,pkey_type=0;
151	BIO *in=NULL,*out=NULL;
152	int informat,outformat,verify=0,noout=0,text=0,keyform=FORMAT_PEM;
153	int nodes=0,kludge=0,newhdr=0;
154	char *infile,*outfile,*prog,*keyfile=NULL,*template=NULL,*keyout=NULL;
155	char *extensions = NULL;
156	char *req_exts = NULL;
157	EVP_CIPHER *cipher=NULL;
158	int modulus=0;
159	char *inrand=NULL;
160	char *passargin = NULL, *passargout = NULL;
161	char *passin = NULL, *passout = NULL;
162	char *p;
163	const EVP_MD *md_alg=NULL,*digest=EVP_md5();
164#ifndef MONOLITH
165	MS_STATIC char config_name[256];
166#endif
167
168	req_conf = NULL;
169#ifndef NO_DES
170	cipher=EVP_des_ede3_cbc();
171#endif
172	apps_startup();
173
174	if (bio_err == NULL)
175		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
176			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
177
178	infile=NULL;
179	outfile=NULL;
180	informat=FORMAT_PEM;
181	outformat=FORMAT_PEM;
182
183	prog=argv[0];
184	argc--;
185	argv++;
186	while (argc >= 1)
187		{
188		if 	(strcmp(*argv,"-inform") == 0)
189			{
190			if (--argc < 1) goto bad;
191			informat=str2fmt(*(++argv));
192			}
193		else if (strcmp(*argv,"-outform") == 0)
194			{
195			if (--argc < 1) goto bad;
196			outformat=str2fmt(*(++argv));
197			}
198		else if (strcmp(*argv,"-key") == 0)
199			{
200			if (--argc < 1) goto bad;
201			keyfile= *(++argv);
202			}
203		else if (strcmp(*argv,"-new") == 0)
204			{
205			pkey_type=TYPE_RSA;
206			newreq=1;
207			}
208		else if (strcmp(*argv,"-config") == 0)
209			{
210			if (--argc < 1) goto bad;
211			template= *(++argv);
212			}
213		else if (strcmp(*argv,"-keyform") == 0)
214			{
215			if (--argc < 1) goto bad;
216			keyform=str2fmt(*(++argv));
217			}
218		else if (strcmp(*argv,"-in") == 0)
219			{
220			if (--argc < 1) goto bad;
221			infile= *(++argv);
222			}
223		else if (strcmp(*argv,"-out") == 0)
224			{
225			if (--argc < 1) goto bad;
226			outfile= *(++argv);
227			}
228		else if (strcmp(*argv,"-keyout") == 0)
229			{
230			if (--argc < 1) goto bad;
231			keyout= *(++argv);
232			}
233		else if (strcmp(*argv,"-passin") == 0)
234			{
235			if (--argc < 1) goto bad;
236			passargin= *(++argv);
237			}
238		else if (strcmp(*argv,"-passout") == 0)
239			{
240			if (--argc < 1) goto bad;
241			passargout= *(++argv);
242			}
243		else if (strcmp(*argv,"-rand") == 0)
244			{
245			if (--argc < 1) goto bad;
246			inrand= *(++argv);
247			}
248		else if (strcmp(*argv,"-newkey") == 0)
249			{
250			int is_numeric;
251
252			if (--argc < 1) goto bad;
253			p= *(++argv);
254			is_numeric = p[0] >= '0' && p[0] <= '9';
255			if (strncmp("rsa:",p,4) == 0 || is_numeric)
256				{
257				pkey_type=TYPE_RSA;
258				if(!is_numeric)
259				    p+=4;
260				newkey= atoi(p);
261				}
262			else
263#ifndef NO_DSA
264				if (strncmp("dsa:",p,4) == 0)
265				{
266				X509 *xtmp=NULL;
267				EVP_PKEY *dtmp;
268
269				pkey_type=TYPE_DSA;
270				p+=4;
271				if ((in=BIO_new_file(p,"r")) == NULL)
272					{
273					perror(p);
274					goto end;
275					}
276				if ((dsa_params=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
277					{
278					ERR_clear_error();
279					(void)BIO_reset(in);
280					if ((xtmp=PEM_read_bio_X509(in,NULL,NULL,NULL)) == NULL)
281						{
282						BIO_printf(bio_err,"unable to load DSA parameters from file\n");
283						goto end;
284						}
285
286					dtmp=X509_get_pubkey(xtmp);
287					if (dtmp->type == EVP_PKEY_DSA)
288						dsa_params=DSAparams_dup(dtmp->pkey.dsa);
289					EVP_PKEY_free(dtmp);
290					X509_free(xtmp);
291					if (dsa_params == NULL)
292						{
293						BIO_printf(bio_err,"Certificate does not contain DSA parameters\n");
294						goto end;
295						}
296					}
297				BIO_free(in);
298				newkey=BN_num_bits(dsa_params->p);
299				in=NULL;
300				}
301			else
302#endif
303#ifndef NO_DH
304				if (strncmp("dh:",p,4) == 0)
305				{
306				pkey_type=TYPE_DH;
307				p+=3;
308				}
309			else
310#endif
311				pkey_type=TYPE_RSA;
312
313			newreq=1;
314			}
315		else if (strcmp(*argv,"-newhdr") == 0)
316			newhdr=1;
317		else if (strcmp(*argv,"-modulus") == 0)
318			modulus=1;
319		else if (strcmp(*argv,"-verify") == 0)
320			verify=1;
321		else if (strcmp(*argv,"-nodes") == 0)
322			nodes=1;
323		else if (strcmp(*argv,"-noout") == 0)
324			noout=1;
325		else if (strcmp(*argv,"-text") == 0)
326			text=1;
327		else if (strcmp(*argv,"-x509") == 0)
328			x509=1;
329		else if (strcmp(*argv,"-asn1-kludge") == 0)
330			kludge=1;
331		else if (strcmp(*argv,"-no-asn1-kludge") == 0)
332			kludge=0;
333		else if (strcmp(*argv,"-days") == 0)
334			{
335			if (--argc < 1) goto bad;
336			days= atoi(*(++argv));
337			if (days == 0) days=30;
338			}
339		else if ((md_alg=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
340			{
341			/* ok */
342			digest=md_alg;
343			}
344		else if (strcmp(*argv,"-extensions") == 0)
345			{
346			if (--argc < 1) goto bad;
347			extensions = *(++argv);
348			}
349		else if (strcmp(*argv,"-reqexts") == 0)
350			{
351			if (--argc < 1) goto bad;
352			req_exts = *(++argv);
353			}
354		else
355			{
356			BIO_printf(bio_err,"unknown option %s\n",*argv);
357			badops=1;
358			break;
359			}
360		argc--;
361		argv++;
362		}
363
364	if (badops)
365		{
366bad:
367		BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
368		BIO_printf(bio_err,"where options  are\n");
369		BIO_printf(bio_err," -inform arg    input format - DER or PEM\n");
370		BIO_printf(bio_err," -outform arg   output format - DER or PEM\n");
371		BIO_printf(bio_err," -in arg        input file\n");
372		BIO_printf(bio_err," -out arg       output file\n");
373		BIO_printf(bio_err," -text          text form of request\n");
374		BIO_printf(bio_err," -noout         do not output REQ\n");
375		BIO_printf(bio_err," -verify        verify signature on REQ\n");
376		BIO_printf(bio_err," -modulus       RSA modulus\n");
377		BIO_printf(bio_err," -nodes         don't encrypt the output key\n");
378		BIO_printf(bio_err," -key file	use the private key contained in file\n");
379		BIO_printf(bio_err," -keyform arg   key file format\n");
380		BIO_printf(bio_err," -keyout arg    file to send the key to\n");
381		BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
382		BIO_printf(bio_err,"                load the file (or the files in the directory) into\n");
383		BIO_printf(bio_err,"                the random number generator\n");
384		BIO_printf(bio_err," -newkey rsa:bits generate a new RSA key of 'bits' in size\n");
385		BIO_printf(bio_err," -newkey dsa:file generate a new DSA key, parameters taken from CA in 'file'\n");
386
387		BIO_printf(bio_err," -[digest]      Digest to sign with (md5, sha1, md2, mdc2)\n");
388		BIO_printf(bio_err," -config file   request template file.\n");
389		BIO_printf(bio_err," -new           new request.\n");
390		BIO_printf(bio_err," -x509          output a x509 structure instead of a cert. req.\n");
391		BIO_printf(bio_err," -days          number of days a x509 generated by -x509 is valid for.\n");
392		BIO_printf(bio_err," -newhdr        output \"NEW\" in the header lines\n");
393		BIO_printf(bio_err," -asn1-kludge   Output the 'request' in a format that is wrong but some CA's\n");
394		BIO_printf(bio_err,"                have been reported as requiring\n");
395		BIO_printf(bio_err," -extensions .. specify certificate extension section (override value in config file)\n");
396		BIO_printf(bio_err," -reqexts ..    specify request extension section (override value in config file)\n");
397		goto end;
398		}
399
400	ERR_load_crypto_strings();
401	if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
402		BIO_printf(bio_err, "Error getting passwords\n");
403		goto end;
404	}
405
406#ifndef MONOLITH /* else this has happened in openssl.c (global `config') */
407	/* Lets load up our environment a little */
408	p=getenv("OPENSSL_CONF");
409	if (p == NULL)
410		p=getenv("SSLEAY_CONF");
411	if (p == NULL)
412		{
413		strcpy(config_name,X509_get_default_cert_area());
414#ifndef VMS
415		strcat(config_name,"/");
416#endif
417		strcat(config_name,OPENSSL_CONF);
418		p=config_name;
419		}
420	default_config_file=p;
421	config=CONF_load(config,p,NULL);
422#endif
423
424	if (template != NULL)
425		{
426		long errline;
427
428		BIO_printf(bio_err,"Using configuration from %s\n",template);
429		req_conf=CONF_load(NULL,template,&errline);
430		if (req_conf == NULL)
431			{
432			BIO_printf(bio_err,"error on line %ld of %s\n",errline,template);
433			goto end;
434			}
435		}
436	else
437		{
438		req_conf=config;
439		BIO_printf(bio_err,"Using configuration from %s\n",
440			default_config_file);
441		if (req_conf == NULL)
442			{
443			BIO_printf(bio_err,"Unable to load config info\n");
444			}
445		}
446
447	if (req_conf != NULL)
448		{
449		p=CONF_get_string(req_conf,NULL,"oid_file");
450		if (p != NULL)
451			{
452			BIO *oid_bio;
453
454			oid_bio=BIO_new_file(p,"r");
455			if (oid_bio == NULL)
456				{
457				/*
458				BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
459				ERR_print_errors(bio_err);
460				*/
461				}
462			else
463				{
464				OBJ_create_objects(oid_bio);
465				BIO_free(oid_bio);
466				}
467			}
468		}
469		if(!add_oid_section(bio_err, req_conf)) goto end;
470
471	if ((md_alg == NULL) &&
472		((p=CONF_get_string(req_conf,SECTION,"default_md")) != NULL))
473		{
474		if ((md_alg=EVP_get_digestbyname(p)) != NULL)
475			digest=md_alg;
476		}
477
478	if(!extensions)
479		extensions = CONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
480	if(extensions) {
481		/* Check syntax of file */
482		X509V3_CTX ctx;
483		X509V3_set_ctx_test(&ctx);
484		X509V3_set_conf_lhash(&ctx, req_conf);
485		if(!X509V3_EXT_add_conf(req_conf, &ctx, extensions, NULL)) {
486			BIO_printf(bio_err,
487			 "Error Loading extension section %s\n", extensions);
488			goto end;
489		}
490	}
491
492	if(!passin)
493		passin = CONF_get_string(req_conf, SECTION, "input_password");
494
495	if(!passout)
496		passout = CONF_get_string(req_conf, SECTION, "output_password");
497
498	p = CONF_get_string(req_conf, SECTION, STRING_MASK);
499
500	if(p && !ASN1_STRING_set_default_mask_asc(p)) {
501		BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
502		goto end;
503	}
504
505	if(!req_exts)
506		req_exts = CONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
507	if(req_exts) {
508		/* Check syntax of file */
509		X509V3_CTX ctx;
510		X509V3_set_ctx_test(&ctx);
511		X509V3_set_conf_lhash(&ctx, req_conf);
512		if(!X509V3_EXT_add_conf(req_conf, &ctx, req_exts, NULL)) {
513			BIO_printf(bio_err,
514			 "Error Loading request extension section %s\n",
515								req_exts);
516			goto end;
517		}
518	}
519
520	in=BIO_new(BIO_s_file());
521	out=BIO_new(BIO_s_file());
522	if ((in == NULL) || (out == NULL))
523		goto end;
524
525	if (keyfile != NULL)
526		{
527		if (BIO_read_filename(in,keyfile) <= 0)
528			{
529			perror(keyfile);
530			goto end;
531			}
532
533		if (keyform == FORMAT_ASN1)
534			pkey=d2i_PrivateKey_bio(in,NULL);
535		else if (keyform == FORMAT_PEM)
536			{
537			pkey=PEM_read_bio_PrivateKey(in,NULL,NULL,passin);
538			}
539		else
540			{
541			BIO_printf(bio_err,"bad input format specified for X509 request\n");
542			goto end;
543			}
544
545		if (pkey == NULL)
546			{
547			BIO_printf(bio_err,"unable to load Private key\n");
548			goto end;
549			}
550                if (EVP_PKEY_type(pkey->type) == EVP_PKEY_DSA)
551			{
552			char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
553			app_RAND_load_file(randfile, bio_err, 0);
554                	}
555		}
556
557	if (newreq && (pkey == NULL))
558		{
559		char *randfile = CONF_get_string(req_conf,SECTION,"RANDFILE");
560		app_RAND_load_file(randfile, bio_err, 0);
561		if (inrand)
562			app_RAND_load_files(inrand);
563
564		if (newkey <= 0)
565			{
566			newkey=(int)CONF_get_number(req_conf,SECTION,BITS);
567			if (newkey <= 0)
568				newkey=DEFAULT_KEY_LENGTH;
569			}
570
571		if (newkey < MIN_KEY_LENGTH)
572			{
573			BIO_printf(bio_err,"private key length is too short,\n");
574			BIO_printf(bio_err,"it needs to be at least %d bits, not %d\n",MIN_KEY_LENGTH,newkey);
575			goto end;
576			}
577		BIO_printf(bio_err,"Generating a %d bit %s private key\n",
578			newkey,(pkey_type == TYPE_RSA)?"RSA":"DSA");
579
580		if ((pkey=EVP_PKEY_new()) == NULL) goto end;
581
582#ifndef NO_RSA
583		if (pkey_type == TYPE_RSA)
584			{
585			if (!EVP_PKEY_assign_RSA(pkey,
586				RSA_generate_key(newkey,0x10001,
587					req_cb,bio_err)))
588				goto end;
589			}
590		else
591#endif
592#ifndef NO_DSA
593			if (pkey_type == TYPE_DSA)
594			{
595			if (!DSA_generate_key(dsa_params)) goto end;
596			if (!EVP_PKEY_assign_DSA(pkey,dsa_params)) goto end;
597			dsa_params=NULL;
598			}
599#endif
600
601		app_RAND_write_file(randfile, bio_err);
602
603		if (pkey == NULL) goto end;
604
605		if (keyout == NULL)
606			keyout=CONF_get_string(req_conf,SECTION,KEYFILE);
607
608		if (keyout == NULL)
609			{
610			BIO_printf(bio_err,"writing new private key to stdout\n");
611			BIO_set_fp(out,stdout,BIO_NOCLOSE);
612#ifdef VMS
613			{
614			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
615			out = BIO_push(tmpbio, out);
616			}
617#endif
618			}
619		else
620			{
621			BIO_printf(bio_err,"writing new private key to '%s'\n",keyout);
622			if (BIO_write_filename(out,keyout) <= 0)
623				{
624				perror(keyout);
625				goto end;
626				}
627			}
628
629		p=CONF_get_string(req_conf,SECTION,"encrypt_rsa_key");
630		if (p == NULL)
631			p=CONF_get_string(req_conf,SECTION,"encrypt_key");
632		if ((p != NULL) && (strcmp(p,"no") == 0))
633			cipher=NULL;
634		if (nodes) cipher=NULL;
635
636		i=0;
637loop:
638		if (!PEM_write_bio_PrivateKey(out,pkey,cipher,
639			NULL,0,NULL,passout))
640			{
641			if ((ERR_GET_REASON(ERR_peek_error()) ==
642				PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3))
643				{
644				ERR_clear_error();
645				i++;
646				goto loop;
647				}
648			goto end;
649			}
650		BIO_printf(bio_err,"-----\n");
651		}
652
653	if (!newreq)
654		{
655		/* Since we are using a pre-existing certificate
656		 * request, the kludge 'format' info should not be
657		 * changed. */
658		kludge= -1;
659		if (infile == NULL)
660			BIO_set_fp(in,stdin,BIO_NOCLOSE);
661		else
662			{
663			if (BIO_read_filename(in,infile) <= 0)
664				{
665				perror(infile);
666				goto end;
667				}
668			}
669
670		if	(informat == FORMAT_ASN1)
671			req=d2i_X509_REQ_bio(in,NULL);
672		else if (informat == FORMAT_PEM)
673			req=PEM_read_bio_X509_REQ(in,NULL,NULL,NULL);
674		else
675			{
676			BIO_printf(bio_err,"bad input format specified for X509 request\n");
677			goto end;
678			}
679		if (req == NULL)
680			{
681			BIO_printf(bio_err,"unable to load X509 request\n");
682			goto end;
683			}
684		}
685
686	if (newreq || x509)
687		{
688#ifndef NO_DSA
689		if (pkey->type == EVP_PKEY_DSA)
690			digest=EVP_dss1();
691#endif
692
693		if (pkey == NULL)
694			{
695			BIO_printf(bio_err,"you need to specify a private key\n");
696			goto end;
697			}
698		if (req == NULL)
699			{
700			req=X509_REQ_new();
701			if (req == NULL)
702				{
703				goto end;
704				}
705
706			i=make_REQ(req,pkey,!x509);
707			if (kludge >= 0)
708				req->req_info->req_kludge=kludge;
709			if (!i)
710				{
711				BIO_printf(bio_err,"problems making Certificate Request\n");
712				goto end;
713				}
714			}
715		if (x509)
716			{
717			EVP_PKEY *tmppkey;
718			X509V3_CTX ext_ctx;
719			if ((x509ss=X509_new()) == NULL) goto end;
720
721			/* Set version to V3 */
722			if(!X509_set_version(x509ss, 2)) goto end;
723			ASN1_INTEGER_set(X509_get_serialNumber(x509ss),0L);
724
725			X509_set_issuer_name(x509ss,
726				X509_REQ_get_subject_name(req));
727			X509_gmtime_adj(X509_get_notBefore(x509ss),0);
728			X509_gmtime_adj(X509_get_notAfter(x509ss),
729				(long)60*60*24*days);
730			X509_set_subject_name(x509ss,
731				X509_REQ_get_subject_name(req));
732			tmppkey = X509_REQ_get_pubkey(req);
733			X509_set_pubkey(x509ss,tmppkey);
734			EVP_PKEY_free(tmppkey);
735
736			/* Set up V3 context struct */
737
738			X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
739			X509V3_set_conf_lhash(&ext_ctx, req_conf);
740
741			/* Add extensions */
742			if(extensions && !X509V3_EXT_add_conf(req_conf,
743				 	&ext_ctx, extensions, x509ss))
744			    {
745			    BIO_printf(bio_err,
746				       "Error Loading extension section %s\n",
747				       extensions);
748			    goto end;
749			    }
750
751			if (!(i=X509_sign(x509ss,pkey,digest)))
752				goto end;
753			}
754		else
755			{
756			X509V3_CTX ext_ctx;
757
758			/* Set up V3 context struct */
759
760			X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
761			X509V3_set_conf_lhash(&ext_ctx, req_conf);
762
763			/* Add extensions */
764			if(req_exts && !X509V3_EXT_REQ_add_conf(req_conf,
765				 	&ext_ctx, req_exts, req))
766			    {
767			    BIO_printf(bio_err,
768				       "Error Loading extension section %s\n",
769				       req_exts);
770			    goto end;
771			    }
772			if (!(i=X509_REQ_sign(req,pkey,digest)))
773				goto end;
774			}
775		}
776
777	if (verify && !x509)
778		{
779		int tmp=0;
780
781		if (pkey == NULL)
782			{
783			pkey=X509_REQ_get_pubkey(req);
784			tmp=1;
785			if (pkey == NULL) goto end;
786			}
787
788		i=X509_REQ_verify(req,pkey);
789		if (tmp) {
790			EVP_PKEY_free(pkey);
791			pkey=NULL;
792		}
793
794		if (i < 0)
795			{
796			goto end;
797			}
798		else if (i == 0)
799			{
800			BIO_printf(bio_err,"verify failure\n");
801			}
802		else /* if (i > 0) */
803			BIO_printf(bio_err,"verify OK\n");
804		}
805
806	if (noout && !text && !modulus)
807		{
808		ex=0;
809		goto end;
810		}
811
812	if (outfile == NULL)
813		{
814		BIO_set_fp(out,stdout,BIO_NOCLOSE);
815#ifdef VMS
816		{
817		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
818		out = BIO_push(tmpbio, out);
819		}
820#endif
821		}
822	else
823		{
824		if ((keyout != NULL) && (strcmp(outfile,keyout) == 0))
825			i=(int)BIO_append_filename(out,outfile);
826		else
827			i=(int)BIO_write_filename(out,outfile);
828		if (!i)
829			{
830			perror(outfile);
831			goto end;
832			}
833		}
834
835	if (text)
836		{
837		if (x509)
838			X509_print(out,x509ss);
839		else
840			X509_REQ_print(out,req);
841		}
842
843	if (modulus)
844		{
845		EVP_PKEY *pubkey;
846
847		if (x509)
848			pubkey=X509_get_pubkey(x509ss);
849		else
850			pubkey=X509_REQ_get_pubkey(req);
851		if (pubkey == NULL)
852			{
853			fprintf(stdout,"Modulus=unavailable\n");
854			goto end;
855			}
856		fprintf(stdout,"Modulus=");
857#ifndef NO_RSA
858		if (pubkey->type == EVP_PKEY_RSA)
859			BN_print(out,pubkey->pkey.rsa->n);
860		else
861#endif
862			fprintf(stdout,"Wrong Algorithm type");
863		fprintf(stdout,"\n");
864		}
865
866	if (!noout && !x509)
867		{
868		if 	(outformat == FORMAT_ASN1)
869			i=i2d_X509_REQ_bio(out,req);
870		else if (outformat == FORMAT_PEM) {
871			if(newhdr) i=PEM_write_bio_X509_REQ_NEW(out,req);
872			else i=PEM_write_bio_X509_REQ(out,req);
873		} else {
874			BIO_printf(bio_err,"bad output format specified for outfile\n");
875			goto end;
876			}
877		if (!i)
878			{
879			BIO_printf(bio_err,"unable to write X509 request\n");
880			goto end;
881			}
882		}
883	if (!noout && x509 && (x509ss != NULL))
884		{
885		if 	(outformat == FORMAT_ASN1)
886			i=i2d_X509_bio(out,x509ss);
887		else if (outformat == FORMAT_PEM)
888			i=PEM_write_bio_X509(out,x509ss);
889		else	{
890			BIO_printf(bio_err,"bad output format specified for outfile\n");
891			goto end;
892			}
893		if (!i)
894			{
895			BIO_printf(bio_err,"unable to write X509 certificate\n");
896			goto end;
897			}
898		}
899	ex=0;
900end:
901	if (ex)
902		{
903		ERR_print_errors(bio_err);
904		}
905	if ((req_conf != NULL) && (req_conf != config)) CONF_free(req_conf);
906	BIO_free(in);
907	BIO_free_all(out);
908	EVP_PKEY_free(pkey);
909	X509_REQ_free(req);
910	X509_free(x509ss);
911	if(passargin && passin) OPENSSL_free(passin);
912	if(passargout && passout) OPENSSL_free(passout);
913	OBJ_cleanup();
914#ifndef NO_DSA
915	if (dsa_params != NULL) DSA_free(dsa_params);
916#endif
917	EXIT(ex);
918	}
919
920static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, int attribs)
921	{
922	int ret=0,i;
923	char no_prompt = 0;
924	STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
925	char *tmp, *dn_sect,*attr_sect;
926
927	tmp=CONF_get_string(req_conf,SECTION,PROMPT);
928	if((tmp != NULL) && !strcmp(tmp, "no")) no_prompt = 1;
929
930	dn_sect=CONF_get_string(req_conf,SECTION,DISTINGUISHED_NAME);
931	if (dn_sect == NULL)
932		{
933		BIO_printf(bio_err,"unable to find '%s' in config\n",
934			DISTINGUISHED_NAME);
935		goto err;
936		}
937	dn_sk=CONF_get_section(req_conf,dn_sect);
938	if (dn_sk == NULL)
939		{
940		BIO_printf(bio_err,"unable to get '%s' section\n",dn_sect);
941		goto err;
942		}
943
944	attr_sect=CONF_get_string(req_conf,SECTION,ATTRIBUTES);
945	if (attr_sect == NULL)
946		attr_sk=NULL;
947	else
948		{
949		attr_sk=CONF_get_section(req_conf,attr_sect);
950		if (attr_sk == NULL)
951			{
952			BIO_printf(bio_err,"unable to get '%s' section\n",attr_sect);
953			goto err;
954			}
955		}
956
957	/* setup version number */
958	if (!X509_REQ_set_version(req,0L)) goto err; /* version 1 */
959
960	if(no_prompt) i = auto_info(req, dn_sk, attr_sk, attribs);
961	else i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs);
962	if(!i) goto err;
963
964	X509_REQ_set_pubkey(req,pkey);
965
966	ret=1;
967err:
968	return(ret);
969	}
970
971
972static int prompt_info(X509_REQ *req,
973		STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
974		STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect, int attribs)
975	{
976	int i;
977	char *p,*q;
978	char buf[100];
979	int nid,min,max;
980	char *type,*def,*value;
981	CONF_VALUE *v;
982	X509_NAME *subj;
983	subj = X509_REQ_get_subject_name(req);
984	BIO_printf(bio_err,"You are about to be asked to enter information that will be incorporated\n");
985	BIO_printf(bio_err,"into your certificate request.\n");
986	BIO_printf(bio_err,"What you are about to enter is what is called a Distinguished Name or a DN.\n");
987	BIO_printf(bio_err,"There are quite a few fields but you can leave some blank\n");
988	BIO_printf(bio_err,"For some fields there will be a default value,\n");
989	BIO_printf(bio_err,"If you enter '.', the field will be left blank.\n");
990	BIO_printf(bio_err,"-----\n");
991
992
993	if (sk_CONF_VALUE_num(dn_sk))
994		{
995		i= -1;
996start:		for (;;)
997			{
998			i++;
999			if (sk_CONF_VALUE_num(dn_sk) <= i) break;
1000
1001			v=sk_CONF_VALUE_value(dn_sk,i);
1002			p=q=NULL;
1003			type=v->name;
1004			if(!check_end(type,"_min") || !check_end(type,"_max") ||
1005				!check_end(type,"_default") ||
1006					 !check_end(type,"_value")) continue;
1007			/* Skip past any leading X. X: X, etc to allow for
1008			 * multiple instances
1009			 */
1010			for(p = v->name; *p ; p++)
1011				if ((*p == ':') || (*p == ',') ||
1012							 (*p == '.')) {
1013					p++;
1014					if(*p) type = p;
1015					break;
1016				}
1017			/* If OBJ not recognised ignore it */
1018			if ((nid=OBJ_txt2nid(type)) == NID_undef) goto start;
1019			sprintf(buf,"%s_default",v->name);
1020			if ((def=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1021				def="";
1022
1023			sprintf(buf,"%s_value",v->name);
1024			if ((value=CONF_get_string(req_conf,dn_sect,buf)) == NULL)
1025				value=NULL;
1026
1027			sprintf(buf,"%s_min",v->name);
1028			min=(int)CONF_get_number(req_conf,dn_sect,buf);
1029
1030			sprintf(buf,"%s_max",v->name);
1031			max=(int)CONF_get_number(req_conf,dn_sect,buf);
1032
1033			if (!add_DN_object(subj,v->value,def,value,nid,
1034				min,max))
1035				return 0;
1036			}
1037		if (X509_NAME_entry_count(subj) == 0)
1038			{
1039			BIO_printf(bio_err,"error, no objects specified in config file\n");
1040			return 0;
1041			}
1042
1043		if (attribs)
1044			{
1045			if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0))
1046				{
1047				BIO_printf(bio_err,"\nPlease enter the following 'extra' attributes\n");
1048				BIO_printf(bio_err,"to be sent with your certificate request\n");
1049				}
1050
1051			i= -1;
1052start2:			for (;;)
1053				{
1054				i++;
1055				if ((attr_sk == NULL) ||
1056					    (sk_CONF_VALUE_num(attr_sk) <= i))
1057					break;
1058
1059				v=sk_CONF_VALUE_value(attr_sk,i);
1060				type=v->name;
1061				if ((nid=OBJ_txt2nid(type)) == NID_undef)
1062					goto start2;
1063
1064				sprintf(buf,"%s_default",type);
1065				if ((def=CONF_get_string(req_conf,attr_sect,buf))
1066					== NULL)
1067					def="";
1068
1069				sprintf(buf,"%s_value",type);
1070				if ((value=CONF_get_string(req_conf,attr_sect,buf))
1071					== NULL)
1072					value=NULL;
1073
1074				sprintf(buf,"%s_min",type);
1075				min=(int)CONF_get_number(req_conf,attr_sect,buf);
1076
1077				sprintf(buf,"%s_max",type);
1078				max=(int)CONF_get_number(req_conf,attr_sect,buf);
1079
1080				if (!add_attribute_object(req,
1081					v->value,def,value,nid,min,max))
1082					return 0;
1083				}
1084			}
1085		}
1086	else
1087		{
1088		BIO_printf(bio_err,"No template, please set one up.\n");
1089		return 0;
1090		}
1091
1092	return 1;
1093
1094	}
1095
1096static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1097			STACK_OF(CONF_VALUE) *attr_sk, int attribs)
1098	{
1099	int i;
1100	char *p,*q;
1101	char *type;
1102	CONF_VALUE *v;
1103	X509_NAME *subj;
1104
1105	subj = X509_REQ_get_subject_name(req);
1106
1107	for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
1108		{
1109		v=sk_CONF_VALUE_value(dn_sk,i);
1110		p=q=NULL;
1111		type=v->name;
1112		/* Skip past any leading X. X: X, etc to allow for
1113		 * multiple instances
1114		 */
1115		for(p = v->name; *p ; p++)
1116#ifndef CHARSET_EBCDIC
1117			if ((*p == ':') || (*p == ',') || (*p == '.')) {
1118#else
1119			if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.'])) {
1120#endif
1121				p++;
1122				if(*p) type = p;
1123				break;
1124			}
1125		if (!X509_NAME_add_entry_by_txt(subj,type, MBSTRING_ASC,
1126				(unsigned char *) v->value,-1,-1,0)) return 0;
1127
1128		}
1129
1130		if (!X509_NAME_entry_count(subj))
1131			{
1132			BIO_printf(bio_err,"error, no objects specified in config file\n");
1133			return 0;
1134			}
1135		if (attribs)
1136			{
1137			for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++)
1138				{
1139				v=sk_CONF_VALUE_value(attr_sk,i);
1140				if(!X509_REQ_add1_attr_by_txt(req, v->name, MBSTRING_ASC,
1141					(unsigned char *)v->value, -1)) return 0;
1142				}
1143			}
1144	return 1;
1145	}
1146
1147
1148static int add_DN_object(X509_NAME *n, char *text, char *def, char *value,
1149	     int nid, int min, int max)
1150	{
1151	int i,ret=0;
1152	MS_STATIC char buf[1024];
1153start:
1154	BIO_printf(bio_err,"%s [%s]:",text,def);
1155	(void)BIO_flush(bio_err);
1156	if (value != NULL)
1157		{
1158		strcpy(buf,value);
1159		strcat(buf,"\n");
1160		BIO_printf(bio_err,"%s\n",value);
1161		}
1162	else
1163		{
1164		buf[0]='\0';
1165		fgets(buf,1024,stdin);
1166		}
1167
1168	if (buf[0] == '\0') return(0);
1169	else if (buf[0] == '\n')
1170		{
1171		if ((def == NULL) || (def[0] == '\0'))
1172			return(1);
1173		strcpy(buf,def);
1174		strcat(buf,"\n");
1175		}
1176	else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1177
1178	i=strlen(buf);
1179	if (buf[i-1] != '\n')
1180		{
1181		BIO_printf(bio_err,"weird input :-(\n");
1182		return(0);
1183		}
1184	buf[--i]='\0';
1185
1186#ifdef CHARSET_EBCDIC
1187	ebcdic2ascii(buf, buf, i);
1188#endif
1189	if(!req_check_len(i, min, max)) goto start;
1190	if (!X509_NAME_add_entry_by_NID(n,nid, MBSTRING_ASC,
1191				(unsigned char *) buf, -1,-1,0)) goto err;
1192	ret=1;
1193err:
1194	return(ret);
1195	}
1196
1197static int add_attribute_object(X509_REQ *req, char *text,
1198				char *def, char *value, int nid, int min,
1199				int max)
1200	{
1201	int i;
1202	static char buf[1024];
1203
1204start:
1205	BIO_printf(bio_err,"%s [%s]:",text,def);
1206	(void)BIO_flush(bio_err);
1207	if (value != NULL)
1208		{
1209		strcpy(buf,value);
1210		strcat(buf,"\n");
1211		BIO_printf(bio_err,"%s\n",value);
1212		}
1213	else
1214		{
1215		buf[0]='\0';
1216		fgets(buf,1024,stdin);
1217		}
1218
1219	if (buf[0] == '\0') return(0);
1220	else if (buf[0] == '\n')
1221		{
1222		if ((def == NULL) || (def[0] == '\0'))
1223			return(1);
1224		strcpy(buf,def);
1225		strcat(buf,"\n");
1226		}
1227	else if ((buf[0] == '.') && (buf[1] == '\n')) return(1);
1228
1229	i=strlen(buf);
1230	if (buf[i-1] != '\n')
1231		{
1232		BIO_printf(bio_err,"weird input :-(\n");
1233		return(0);
1234		}
1235	buf[--i]='\0';
1236#ifdef CHARSET_EBCDIC
1237	ebcdic2ascii(buf, buf, i);
1238#endif
1239	if(!req_check_len(i, min, max)) goto start;
1240
1241	if(!X509_REQ_add1_attr_by_NID(req, nid, MBSTRING_ASC,
1242					(unsigned char *)buf, -1)) {
1243		BIO_printf(bio_err, "Error adding attribute\n");
1244		ERR_print_errors(bio_err);
1245		goto err;
1246	}
1247
1248	return(1);
1249err:
1250	return(0);
1251	}
1252
1253#ifndef NO_RSA
1254static void MS_CALLBACK req_cb(int p, int n, void *arg)
1255	{
1256	char c='*';
1257
1258	if (p == 0) c='.';
1259	if (p == 1) c='+';
1260	if (p == 2) c='*';
1261	if (p == 3) c='\n';
1262	BIO_write((BIO *)arg,&c,1);
1263	(void)BIO_flush((BIO *)arg);
1264#ifdef LINT
1265	p=n;
1266#endif
1267	}
1268#endif
1269
1270static int req_check_len(int len, int min, int max)
1271	{
1272	if (len < min)
1273		{
1274		BIO_printf(bio_err,"string is too short, it needs to be at least %d bytes long\n",min);
1275		return(0);
1276		}
1277	if ((max != 0) && (len > max))
1278		{
1279		BIO_printf(bio_err,"string is too long, it needs to be less than  %d bytes long\n",max);
1280		return(0);
1281		}
1282	return(1);
1283	}
1284
1285/* Check if the end of a string matches 'end' */
1286static int check_end(char *str, char *end)
1287{
1288	int elen, slen;
1289	char *tmp;
1290	elen = strlen(end);
1291	slen = strlen(str);
1292	if(elen > slen) return 1;
1293	tmp = str + slen - elen;
1294	return strcmp(tmp, end);
1295}
1296