Various CRL enhancements tidies and workaround for broken CRLs.
[openssl.git] / apps / crl.c
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
75 static char *crl_usage[]={
76 "usage: crl args\n",
77 "\n",
78 " -inform arg     - input format - default PEM (one of DER, TXT 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",
90 NULL
91 };
92
93 static X509_CRL *load_crl(char *file, int format);
94 static BIO *bio_out=NULL;
95
96 int MAIN(int argc, char **argv)
97         {
98         X509_CRL *x=NULL;
99         char *CAfile = NULL, *CApath = NULL;
100         int ret=1,i,num,badops=0;
101         BIO *out=NULL;
102         int informat,outformat;
103         char *infile=NULL,*outfile=NULL;
104         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
105         char **pp,buf[256];
106         X509_STORE *store = NULL;
107         X509_STORE_CTX ctx;
108         X509_LOOKUP *lookup = NULL;
109         X509_OBJECT xobj;
110         EVP_PKEY *pkey;
111         int do_ver = 0;
112
113         apps_startup();
114
115         if (bio_err == NULL)
116                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
117                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
118
119         if (bio_out == NULL)
120                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
121                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
122
123         informat=FORMAT_PEM;
124         outformat=FORMAT_PEM;
125
126         argc--;
127         argv++;
128         num=0;
129         while (argc >= 1)
130                 {
131 #ifdef undef
132                 if      (strcmp(*argv,"-p") == 0)
133                         {
134                         if (--argc < 1) goto bad;
135                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
136                         }
137 #endif
138                 if      (strcmp(*argv,"-inform") == 0)
139                         {
140                         if (--argc < 1) goto bad;
141                         informat=str2fmt(*(++argv));
142                         }
143                 else if (strcmp(*argv,"-outform") == 0)
144                         {
145                         if (--argc < 1) goto bad;
146                         outformat=str2fmt(*(++argv));
147                         }
148                 else if (strcmp(*argv,"-in") == 0)
149                         {
150                         if (--argc < 1) goto bad;
151                         infile= *(++argv);
152                         }
153                 else if (strcmp(*argv,"-out") == 0)
154                         {
155                         if (--argc < 1) goto bad;
156                         outfile= *(++argv);
157                         }
158                 else if (strcmp(*argv,"-CApath") == 0)
159                         {
160                         if (--argc < 1) goto bad;
161                         CApath = *(++argv);
162                         do_ver = 1;
163                         }
164                 else if (strcmp(*argv,"-CAfile") == 0)
165                         {
166                         if (--argc < 1) goto bad;
167                         CAfile = *(++argv);
168                         do_ver = 1;
169                         }
170                 else if (strcmp(*argv,"-verify") == 0)
171                         do_ver = 1;
172                 else if (strcmp(*argv,"-text") == 0)
173                         text = 1;
174                 else if (strcmp(*argv,"-hash") == 0)
175                         hash= ++num;
176                 else if (strcmp(*argv,"-issuer") == 0)
177                         issuer= ++num;
178                 else if (strcmp(*argv,"-lastupdate") == 0)
179                         lastupdate= ++num;
180                 else if (strcmp(*argv,"-nextupdate") == 0)
181                         nextupdate= ++num;
182                 else if (strcmp(*argv,"-noout") == 0)
183                         noout= ++num;
184                 else
185                         {
186                         BIO_printf(bio_err,"unknown option %s\n",*argv);
187                         badops=1;
188                         break;
189                         }
190                 argc--;
191                 argv++;
192                 }
193
194         if (badops)
195                 {
196 bad:
197                 for (pp=crl_usage; (*pp != NULL); pp++)
198                         BIO_printf(bio_err,*pp);
199                 goto end;
200                 }
201
202         ERR_load_crypto_strings();
203         X509V3_add_standard_extensions();
204         x=load_crl(infile,informat);
205         if (x == NULL) { goto end; }
206
207         if(do_ver) {
208                 store = X509_STORE_new();
209                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
210                 if (lookup == NULL) goto end;
211                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
212                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
213                         
214                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
215                 if (lookup == NULL) goto end;
216                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
217                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
218                 ERR_clear_error();
219
220                 X509_STORE_CTX_init(&ctx, store, NULL, NULL);
221
222                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
223                                         X509_CRL_get_issuer(x), &xobj);
224                 if(i <= 0) {
225                         BIO_printf(bio_err,
226                                 "Error getting CRL issuer certificate\n");
227                         goto end;
228                 }
229                 pkey = X509_get_pubkey(xobj.data.x509);
230                 X509_OBJECT_free_contents(&xobj);
231                 if(!pkey) {
232                         BIO_printf(bio_err,
233                                 "Error getting CRL issuer public key\n");
234                         goto end;
235                 }
236                 i = X509_CRL_verify(x, pkey);
237                 EVP_PKEY_free(pkey);
238                 if(i < 0) goto end;
239                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
240                 else BIO_printf(bio_err, "verify OK\n");
241         }
242
243         if (num)
244                 {
245                 for (i=1; i<=num; i++)
246                         {
247                         if (issuer == i)
248                                 {
249                                 X509_NAME_oneline(X509_CRL_get_issuer(x),
250                                                                 buf,256);
251                                 BIO_printf(bio_out,"issuer= %s\n",buf);
252                                 }
253
254                         if (hash == i)
255                                 {
256                                 BIO_printf(bio_out,"%08lx\n",
257                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
258                                 }
259                         if (lastupdate == i)
260                                 {
261                                 BIO_printf(bio_out,"lastUpdate=");
262                                 ASN1_TIME_print(bio_out,
263                                                 X509_CRL_get_lastUpdate(x));
264                                 BIO_printf(bio_out,"\n");
265                                 }
266                         if (nextupdate == i)
267                                 {
268                                 BIO_printf(bio_out,"nextUpdate=");
269                                 if (X509_CRL_get_nextUpdate(x)) 
270                                         ASN1_TIME_print(bio_out,
271                                                 X509_CRL_get_nextUpdate(x));
272                                 else
273                                         BIO_printf(bio_out,"NONE");
274                                 BIO_printf(bio_out,"\n");
275                                 }
276                         }
277                 }
278
279         out=BIO_new(BIO_s_file());
280         if (out == NULL)
281                 {
282                 ERR_print_errors(bio_err);
283                 goto end;
284                 }
285
286         if (outfile == NULL)
287                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
288         else
289                 {
290                 if (BIO_write_filename(out,outfile) <= 0)
291                         {
292                         perror(outfile);
293                         goto end;
294                         }
295                 }
296
297         if (text) X509_CRL_print(out, x);
298
299         if (noout) goto end;
300
301         if      (outformat == FORMAT_ASN1)
302                 i=(int)i2d_X509_CRL_bio(out,x);
303         else if (outformat == FORMAT_PEM)
304                 i=PEM_write_bio_X509_CRL(out,x);
305         else    
306                 {
307                 BIO_printf(bio_err,"bad output format specified for outfile\n");
308                 goto end;
309                 }
310         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
311         ret=0;
312 end:
313         BIO_free(out);
314         BIO_free(bio_out);
315         bio_out=NULL;
316         X509_CRL_free(x);
317         if(store) {
318                 X509_STORE_CTX_cleanup(&ctx);
319                 X509_STORE_free(store);
320         }
321         X509V3_EXT_cleanup();
322         EXIT(ret);
323         }
324
325 static X509_CRL *load_crl(char *infile, int format)
326         {
327         X509_CRL *x=NULL;
328         BIO *in=NULL;
329
330         in=BIO_new(BIO_s_file());
331         if (in == NULL)
332                 {
333                 ERR_print_errors(bio_err);
334                 goto end;
335                 }
336
337         if (infile == NULL)
338                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
339         else
340                 {
341                 if (BIO_read_filename(in,infile) <= 0)
342                         {
343                         perror(infile);
344                         goto end;
345                         }
346                 }
347         if      (format == FORMAT_ASN1)
348                 x=d2i_X509_CRL_bio(in,NULL);
349         else if (format == FORMAT_PEM)
350                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
351         else    {
352                 BIO_printf(bio_err,"bad input format specified for input crl\n");
353                 goto end;
354                 }
355         if (x == NULL)
356                 {
357                 BIO_printf(bio_err,"unable to load CRL\n");
358                 ERR_print_errors(bio_err);
359                 goto end;
360                 }
361         
362 end:
363         BIO_free(in);
364         return(x);
365         }
366