1/* apps/crl.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 <string.h>
62#include "apps.h"
63#include <openssl/bio.h>
64#include <openssl/err.h>
65#include <openssl/x509.h>
66#include <openssl/x509v3.h>
67#include <openssl/pem.h>
68
69#undef PROG
70#define PROG	crl_main
71
72#undef POSTFIX
73#define	POSTFIX	".rvk"
74
75static const char *crl_usage[]={
76"usage: crl args\n",
77"\n",
78" -inform arg     - input format - default PEM (DER or PEM)\n",
79" -outform arg    - output format - default PEM\n",
80" -text           - print out a text format version\n",
81" -in arg         - input file - default stdin\n",
82" -out arg        - output file - default stdout\n",
83" -hash           - print hash value\n",
84#ifndef OPENSSL_NO_MD5
85" -hash_old       - print old-style (MD5) hash value\n",
86#endif
87" -fingerprint    - print the crl fingerprint\n",
88" -issuer         - print issuer DN\n",
89" -lastupdate     - lastUpdate field\n",
90" -nextupdate     - nextUpdate field\n",
91" -crlnumber      - print CRL number\n",
92" -noout          - no CRL output\n",
93" -CAfile  name   - verify CRL using certificates in file \"name\"\n",
94" -CApath  dir    - verify CRL using certificates in \"dir\"\n",
95" -nameopt arg    - various certificate name options\n",
96NULL
97};
98
99static X509_CRL *load_crl(char *file, int format);
100static BIO *bio_out=NULL;
101
102int MAIN(int, char **);
103
104int MAIN(int argc, char **argv)
105	{
106	unsigned long nmflag = 0;
107	X509_CRL *x=NULL;
108	char *CAfile = NULL, *CApath = NULL;
109	int ret=1,i,num,badops=0;
110	BIO *out=NULL;
111	int informat,outformat;
112	char *infile=NULL,*outfile=NULL;
113	int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
114#ifndef OPENSSL_NO_MD5
115       int hash_old=0;
116#endif
117	int fingerprint = 0, crlnumber = 0;
118	const char **pp;
119	X509_STORE *store = NULL;
120	X509_STORE_CTX ctx;
121	X509_LOOKUP *lookup = NULL;
122	X509_OBJECT xobj;
123	EVP_PKEY *pkey;
124	int do_ver = 0;
125	const EVP_MD *md_alg,*digest=EVP_sha1();
126
127	apps_startup();
128
129	if (bio_err == NULL)
130		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
131			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
132
133	if (!load_config(bio_err, NULL))
134		goto end;
135
136	if (bio_out == NULL)
137		if ((bio_out=BIO_new(BIO_s_file())) != NULL)
138			{
139			BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
140#ifdef OPENSSL_SYS_VMS
141			{
142			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
143			bio_out = BIO_push(tmpbio, bio_out);
144			}
145#endif
146			}
147
148	informat=FORMAT_PEM;
149	outformat=FORMAT_PEM;
150
151	argc--;
152	argv++;
153	num=0;
154	while (argc >= 1)
155		{
156#ifdef undef
157		if	(strcmp(*argv,"-p") == 0)
158			{
159			if (--argc < 1) goto bad;
160			if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
161			}
162#endif
163		if 	(strcmp(*argv,"-inform") == 0)
164			{
165			if (--argc < 1) goto bad;
166			informat=str2fmt(*(++argv));
167			}
168		else if (strcmp(*argv,"-outform") == 0)
169			{
170			if (--argc < 1) goto bad;
171			outformat=str2fmt(*(++argv));
172			}
173		else if (strcmp(*argv,"-in") == 0)
174			{
175			if (--argc < 1) goto bad;
176			infile= *(++argv);
177			}
178		else if (strcmp(*argv,"-out") == 0)
179			{
180			if (--argc < 1) goto bad;
181			outfile= *(++argv);
182			}
183		else if (strcmp(*argv,"-CApath") == 0)
184			{
185			if (--argc < 1) goto bad;
186			CApath = *(++argv);
187			do_ver = 1;
188			}
189		else if (strcmp(*argv,"-CAfile") == 0)
190			{
191			if (--argc < 1) goto bad;
192			CAfile = *(++argv);
193			do_ver = 1;
194			}
195		else if (strcmp(*argv,"-verify") == 0)
196			do_ver = 1;
197		else if (strcmp(*argv,"-text") == 0)
198			text = 1;
199		else if (strcmp(*argv,"-hash") == 0)
200			hash= ++num;
201#ifndef OPENSSL_NO_MD5
202		else if (strcmp(*argv,"-hash_old") == 0)
203			hash_old= ++num;
204#endif
205		else if (strcmp(*argv,"-nameopt") == 0)
206			{
207			if (--argc < 1) goto bad;
208			if (!set_name_ex(&nmflag, *(++argv))) goto bad;
209			}
210		else if (strcmp(*argv,"-issuer") == 0)
211			issuer= ++num;
212		else if (strcmp(*argv,"-lastupdate") == 0)
213			lastupdate= ++num;
214		else if (strcmp(*argv,"-nextupdate") == 0)
215			nextupdate= ++num;
216		else if (strcmp(*argv,"-noout") == 0)
217			noout= ++num;
218		else if (strcmp(*argv,"-fingerprint") == 0)
219			fingerprint= ++num;
220		else if (strcmp(*argv,"-crlnumber") == 0)
221			crlnumber= ++num;
222		else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
223			{
224			/* ok */
225			digest=md_alg;
226			}
227		else
228			{
229			BIO_printf(bio_err,"unknown option %s\n",*argv);
230			badops=1;
231			break;
232			}
233		argc--;
234		argv++;
235		}
236
237	if (badops)
238		{
239bad:
240		for (pp=crl_usage; (*pp != NULL); pp++)
241			BIO_printf(bio_err,"%s",*pp);
242		goto end;
243		}
244
245	ERR_load_crypto_strings();
246	x=load_crl(infile,informat);
247	if (x == NULL) { goto end; }
248
249	if(do_ver) {
250		store = X509_STORE_new();
251		lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
252		if (lookup == NULL) goto end;
253		if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
254			X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
255
256		lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
257		if (lookup == NULL) goto end;
258		if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
259			X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
260		ERR_clear_error();
261
262		if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
263			BIO_printf(bio_err,
264				"Error initialising X509 store\n");
265			goto end;
266		}
267
268		i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
269					X509_CRL_get_issuer(x), &xobj);
270		if(i <= 0) {
271			BIO_printf(bio_err,
272				"Error getting CRL issuer certificate\n");
273			goto end;
274		}
275		pkey = X509_get_pubkey(xobj.data.x509);
276		X509_OBJECT_free_contents(&xobj);
277		if(!pkey) {
278			BIO_printf(bio_err,
279				"Error getting CRL issuer public key\n");
280			goto end;
281		}
282		i = X509_CRL_verify(x, pkey);
283		EVP_PKEY_free(pkey);
284		if(i < 0) goto end;
285		if(i == 0) BIO_printf(bio_err, "verify failure\n");
286		else BIO_printf(bio_err, "verify OK\n");
287	}
288
289	if (num)
290		{
291		for (i=1; i<=num; i++)
292			{
293			if (issuer == i)
294				{
295				print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
296				}
297			if (crlnumber == i)
298				{
299				ASN1_INTEGER *crlnum;
300				crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number,
301							      NULL, NULL);
302				BIO_printf(bio_out,"crlNumber=");
303				if (crlnum)
304					{
305					i2a_ASN1_INTEGER(bio_out, crlnum);
306					ASN1_INTEGER_free(crlnum);
307					}
308				else
309					BIO_puts(bio_out, "<NONE>");
310				BIO_printf(bio_out,"\n");
311				}
312			if (hash == i)
313				{
314				BIO_printf(bio_out,"%08lx\n",
315					X509_NAME_hash(X509_CRL_get_issuer(x)));
316				}
317#ifndef OPENSSL_NO_MD5
318			if (hash_old == i)
319				{
320				BIO_printf(bio_out,"%08lx\n",
321					X509_NAME_hash_old(
322						X509_CRL_get_issuer(x)));
323				}
324#endif
325			if (lastupdate == i)
326				{
327				BIO_printf(bio_out,"lastUpdate=");
328				ASN1_TIME_print(bio_out,
329						X509_CRL_get_lastUpdate(x));
330				BIO_printf(bio_out,"\n");
331				}
332			if (nextupdate == i)
333				{
334				BIO_printf(bio_out,"nextUpdate=");
335				if (X509_CRL_get_nextUpdate(x))
336					ASN1_TIME_print(bio_out,
337						X509_CRL_get_nextUpdate(x));
338				else
339					BIO_printf(bio_out,"NONE");
340				BIO_printf(bio_out,"\n");
341				}
342			if (fingerprint == i)
343				{
344				int j;
345				unsigned int n;
346				unsigned char md[EVP_MAX_MD_SIZE];
347
348				if (!X509_CRL_digest(x,digest,md,&n))
349					{
350					BIO_printf(bio_err,"out of memory\n");
351					goto end;
352					}
353				BIO_printf(bio_out,"%s Fingerprint=",
354						OBJ_nid2sn(EVP_MD_type(digest)));
355				for (j=0; j<(int)n; j++)
356					{
357					BIO_printf(bio_out,"%02X%c",md[j],
358						(j+1 == (int)n)
359						?'\n':':');
360					}
361				}
362			}
363		}
364
365	out=BIO_new(BIO_s_file());
366	if (out == NULL)
367		{
368		ERR_print_errors(bio_err);
369		goto end;
370		}
371
372	if (outfile == NULL)
373		{
374		BIO_set_fp(out,stdout,BIO_NOCLOSE);
375#ifdef OPENSSL_SYS_VMS
376		{
377		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
378		out = BIO_push(tmpbio, out);
379		}
380#endif
381		}
382	else
383		{
384		if (BIO_write_filename(out,outfile) <= 0)
385			{
386			perror(outfile);
387			goto end;
388			}
389		}
390
391	if (text) X509_CRL_print(out, x);
392
393	if (noout)
394		{
395		ret = 0;
396		goto end;
397		}
398
399	if 	(outformat == FORMAT_ASN1)
400		i=(int)i2d_X509_CRL_bio(out,x);
401	else if (outformat == FORMAT_PEM)
402		i=PEM_write_bio_X509_CRL(out,x);
403	else
404		{
405		BIO_printf(bio_err,"bad output format specified for outfile\n");
406		goto end;
407		}
408	if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
409	ret=0;
410end:
411	BIO_free_all(out);
412	BIO_free_all(bio_out);
413	bio_out=NULL;
414	X509_CRL_free(x);
415	if(store) {
416		X509_STORE_CTX_cleanup(&ctx);
417		X509_STORE_free(store);
418	}
419	apps_shutdown();
420	OPENSSL_EXIT(ret);
421	}
422
423static X509_CRL *load_crl(char *infile, int format)
424	{
425	X509_CRL *x=NULL;
426	BIO *in=NULL;
427
428	in=BIO_new(BIO_s_file());
429	if (in == NULL)
430		{
431		ERR_print_errors(bio_err);
432		goto end;
433		}
434
435	if (infile == NULL)
436		BIO_set_fp(in,stdin,BIO_NOCLOSE);
437	else
438		{
439		if (BIO_read_filename(in,infile) <= 0)
440			{
441			perror(infile);
442			goto end;
443			}
444		}
445	if 	(format == FORMAT_ASN1)
446		x=d2i_X509_CRL_bio(in,NULL);
447	else if (format == FORMAT_PEM)
448		x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
449	else	{
450		BIO_printf(bio_err,"bad input format specified for input crl\n");
451		goto end;
452		}
453	if (x == NULL)
454		{
455		BIO_printf(bio_err,"unable to load CRL\n");
456		ERR_print_errors(bio_err);
457		goto end;
458		}
459
460end:
461	BIO_free(in);
462	return(x);
463	}
464
465