crl.c revision 68651 
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 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" -issuer         - print issuer DN\n",
85" -lastupdate     - lastUpdate field\n",
86" -nextupdate     - nextUpdate field\n",
87" -noout          - no CRL output\n",
88" -CAfile  name   - verify CRL using certificates in file \"name\"\n",
89" -CApath  dir    - verify CRL using certificates in \"dir\"\n",
90NULL
91};
92
93static X509_CRL *load_crl(char *file, int format);
94static BIO *bio_out=NULL;
95
96int MAIN(int, char **);
97
98int MAIN(int argc, char **argv)
99	{
100	X509_CRL *x=NULL;
101	char *CAfile = NULL, *CApath = NULL;
102	int ret=1,i,num,badops=0;
103	BIO *out=NULL;
104	int informat,outformat;
105	char *infile=NULL,*outfile=NULL;
106	int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
107	int fingerprint = 0;
108	char **pp,buf[256];
109	X509_STORE *store = NULL;
110	X509_STORE_CTX ctx;
111	X509_LOOKUP *lookup = NULL;
112	X509_OBJECT xobj;
113	EVP_PKEY *pkey;
114	int do_ver = 0;
115	const EVP_MD *md_alg,*digest=EVP_md5();
116
117	apps_startup();
118
119	if (bio_err == NULL)
120		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
121			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
122
123	if (bio_out == NULL)
124		if ((bio_out=BIO_new(BIO_s_file())) != NULL)
125			{
126			BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
127#ifdef VMS
128			{
129			BIO *tmpbio = BIO_new(BIO_f_linebuffer());
130			bio_out = BIO_push(tmpbio, bio_out);
131			}
132#endif
133			}
134
135	informat=FORMAT_PEM;
136	outformat=FORMAT_PEM;
137
138	argc--;
139	argv++;
140	num=0;
141	while (argc >= 1)
142		{
143#ifdef undef
144		if	(strcmp(*argv,"-p") == 0)
145			{
146			if (--argc < 1) goto bad;
147			if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
148			}
149#endif
150		if 	(strcmp(*argv,"-inform") == 0)
151			{
152			if (--argc < 1) goto bad;
153			informat=str2fmt(*(++argv));
154			}
155		else if (strcmp(*argv,"-outform") == 0)
156			{
157			if (--argc < 1) goto bad;
158			outformat=str2fmt(*(++argv));
159			}
160		else if (strcmp(*argv,"-in") == 0)
161			{
162			if (--argc < 1) goto bad;
163			infile= *(++argv);
164			}
165		else if (strcmp(*argv,"-out") == 0)
166			{
167			if (--argc < 1) goto bad;
168			outfile= *(++argv);
169			}
170		else if (strcmp(*argv,"-CApath") == 0)
171			{
172			if (--argc < 1) goto bad;
173			CApath = *(++argv);
174			do_ver = 1;
175			}
176		else if (strcmp(*argv,"-CAfile") == 0)
177			{
178			if (--argc < 1) goto bad;
179			CAfile = *(++argv);
180			do_ver = 1;
181			}
182		else if (strcmp(*argv,"-verify") == 0)
183			do_ver = 1;
184		else if (strcmp(*argv,"-text") == 0)
185			text = 1;
186		else if (strcmp(*argv,"-hash") == 0)
187			hash= ++num;
188		else if (strcmp(*argv,"-issuer") == 0)
189			issuer= ++num;
190		else if (strcmp(*argv,"-lastupdate") == 0)
191			lastupdate= ++num;
192		else if (strcmp(*argv,"-nextupdate") == 0)
193			nextupdate= ++num;
194		else if (strcmp(*argv,"-noout") == 0)
195			noout= ++num;
196		else if (strcmp(*argv,"-fingerprint") == 0)
197			fingerprint= ++num;
198		else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
199			{
200			/* ok */
201			digest=md_alg;
202			}
203		else
204			{
205			BIO_printf(bio_err,"unknown option %s\n",*argv);
206			badops=1;
207			break;
208			}
209		argc--;
210		argv++;
211		}
212
213	if (badops)
214		{
215bad:
216		for (pp=crl_usage; (*pp != NULL); pp++)
217			BIO_printf(bio_err,*pp);
218		goto end;
219		}
220
221	ERR_load_crypto_strings();
222	x=load_crl(infile,informat);
223	if (x == NULL) { goto end; }
224
225	if(do_ver) {
226		store = X509_STORE_new();
227		lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
228		if (lookup == NULL) goto end;
229		if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
230			X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
231
232		lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
233		if (lookup == NULL) goto end;
234		if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
235			X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
236		ERR_clear_error();
237
238		X509_STORE_CTX_init(&ctx, store, NULL, NULL);
239
240		i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
241					X509_CRL_get_issuer(x), &xobj);
242		if(i <= 0) {
243			BIO_printf(bio_err,
244				"Error getting CRL issuer certificate\n");
245			goto end;
246		}
247		pkey = X509_get_pubkey(xobj.data.x509);
248		X509_OBJECT_free_contents(&xobj);
249		if(!pkey) {
250			BIO_printf(bio_err,
251				"Error getting CRL issuer public key\n");
252			goto end;
253		}
254		i = X509_CRL_verify(x, pkey);
255		EVP_PKEY_free(pkey);
256		if(i < 0) goto end;
257		if(i == 0) BIO_printf(bio_err, "verify failure\n");
258		else BIO_printf(bio_err, "verify OK\n");
259	}
260
261	if (num)
262		{
263		for (i=1; i<=num; i++)
264			{
265			if (issuer == i)
266				{
267				X509_NAME_oneline(X509_CRL_get_issuer(x),
268								buf,256);
269				BIO_printf(bio_out,"issuer= %s\n",buf);
270				}
271
272			if (hash == i)
273				{
274				BIO_printf(bio_out,"%08lx\n",
275					X509_NAME_hash(X509_CRL_get_issuer(x)));
276				}
277			if (lastupdate == i)
278				{
279				BIO_printf(bio_out,"lastUpdate=");
280				ASN1_TIME_print(bio_out,
281						X509_CRL_get_lastUpdate(x));
282				BIO_printf(bio_out,"\n");
283				}
284			if (nextupdate == i)
285				{
286				BIO_printf(bio_out,"nextUpdate=");
287				if (X509_CRL_get_nextUpdate(x))
288					ASN1_TIME_print(bio_out,
289						X509_CRL_get_nextUpdate(x));
290				else
291					BIO_printf(bio_out,"NONE");
292				BIO_printf(bio_out,"\n");
293				}
294			if (fingerprint == i)
295				{
296				int j;
297				unsigned int n;
298				unsigned char md[EVP_MAX_MD_SIZE];
299
300				if (!X509_CRL_digest(x,digest,md,&n))
301					{
302					BIO_printf(bio_err,"out of memory\n");
303					goto end;
304					}
305				BIO_printf(bio_out,"%s Fingerprint=",
306						OBJ_nid2sn(EVP_MD_type(digest)));
307				for (j=0; j<(int)n; j++)
308					{
309					BIO_printf(bio_out,"%02X%c",md[j],
310						(j+1 == (int)n)
311						?'\n':':');
312					}
313				}
314			}
315		}
316
317	out=BIO_new(BIO_s_file());
318	if (out == NULL)
319		{
320		ERR_print_errors(bio_err);
321		goto end;
322		}
323
324	if (outfile == NULL)
325		{
326		BIO_set_fp(out,stdout,BIO_NOCLOSE);
327#ifdef VMS
328		{
329		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
330		out = BIO_push(tmpbio, out);
331		}
332#endif
333		}
334	else
335		{
336		if (BIO_write_filename(out,outfile) <= 0)
337			{
338			perror(outfile);
339			goto end;
340			}
341		}
342
343	if (text) X509_CRL_print(out, x);
344
345	if (noout) goto end;
346
347	if 	(outformat == FORMAT_ASN1)
348		i=(int)i2d_X509_CRL_bio(out,x);
349	else if (outformat == FORMAT_PEM)
350		i=PEM_write_bio_X509_CRL(out,x);
351	else
352		{
353		BIO_printf(bio_err,"bad output format specified for outfile\n");
354		goto end;
355		}
356	if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
357	ret=0;
358end:
359	BIO_free_all(out);
360	BIO_free_all(bio_out);
361	bio_out=NULL;
362	X509_CRL_free(x);
363	if(store) {
364		X509_STORE_CTX_cleanup(&ctx);
365		X509_STORE_free(store);
366	}
367	EXIT(ret);
368	}
369
370static X509_CRL *load_crl(char *infile, int format)
371	{
372	X509_CRL *x=NULL;
373	BIO *in=NULL;
374
375	in=BIO_new(BIO_s_file());
376	if (in == NULL)
377		{
378		ERR_print_errors(bio_err);
379		goto end;
380		}
381
382	if (infile == NULL)
383		BIO_set_fp(in,stdin,BIO_NOCLOSE);
384	else
385		{
386		if (BIO_read_filename(in,infile) <= 0)
387			{
388			perror(infile);
389			goto end;
390			}
391		}
392	if 	(format == FORMAT_ASN1)
393		x=d2i_X509_CRL_bio(in,NULL);
394	else if (format == FORMAT_PEM)
395		x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
396	else	{
397		BIO_printf(bio_err,"bad input format specified for input crl\n");
398		goto end;
399		}
400	if (x == NULL)
401		{
402		BIO_printf(bio_err,"unable to load CRL\n");
403		ERR_print_errors(bio_err);
404		goto end;
405		}
406
407end:
408	BIO_free(in);
409	return(x);
410	}
411
412