8ee88af46cf14dcb71f722ff5e6e7e10dbdf87bf
[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 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 " -fingerprint    - print the crl fingerprint\n",
85 " -issuer         - print issuer DN\n",
86 " -lastupdate     - lastUpdate field\n",
87 " -nextupdate     - nextUpdate field\n",
88 " -crlnumber      - print CRL number\n",
89 " -noout          - no CRL output\n",
90 " -CAfile  name   - verify CRL using certificates in file \"name\"\n",
91 " -CApath  dir    - verify CRL using certificates in \"dir\"\n",
92 " -nameopt arg    - various certificate name options\n",
93 NULL
94 };
95
96 static BIO *bio_out=NULL;
97
98 int MAIN(int, char **);
99
100 int MAIN(int argc, char **argv)
101         {
102         unsigned long nmflag = 0;
103         X509_CRL *x=NULL;
104         char *CAfile = NULL, *CApath = NULL;
105         int ret=1,i,num,badops=0,badsig=0;
106         BIO *out=NULL;
107         int informat,outformat;
108         char *infile=NULL,*outfile=NULL;
109         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
110         int fingerprint = 0, crlnumber = 0;
111         const char **pp;
112         X509_STORE *store = NULL;
113         X509_STORE_CTX ctx;
114         X509_LOOKUP *lookup = NULL;
115         X509_OBJECT xobj;
116         EVP_PKEY *pkey;
117         int do_ver = 0;
118         const EVP_MD *md_alg,*digest=EVP_sha1();
119
120         apps_startup();
121
122         if (bio_err == NULL)
123                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
124                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
125
126         if (!load_config(bio_err, NULL))
127                 goto end;
128
129         if (bio_out == NULL)
130                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
131                         {
132                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
133 #ifdef OPENSSL_SYS_VMS
134                         {
135                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
136                         bio_out = BIO_push(tmpbio, bio_out);
137                         }
138 #endif
139                         }
140
141         informat=FORMAT_PEM;
142         outformat=FORMAT_PEM;
143
144         argc--;
145         argv++;
146         num=0;
147         while (argc >= 1)
148                 {
149 #ifdef undef
150                 if      (strcmp(*argv,"-p") == 0)
151                         {
152                         if (--argc < 1) goto bad;
153                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
154                         }
155 #endif
156                 if      (strcmp(*argv,"-inform") == 0)
157                         {
158                         if (--argc < 1) goto bad;
159                         informat=str2fmt(*(++argv));
160                         }
161                 else if (strcmp(*argv,"-outform") == 0)
162                         {
163                         if (--argc < 1) goto bad;
164                         outformat=str2fmt(*(++argv));
165                         }
166                 else if (strcmp(*argv,"-in") == 0)
167                         {
168                         if (--argc < 1) goto bad;
169                         infile= *(++argv);
170                         }
171                 else if (strcmp(*argv,"-out") == 0)
172                         {
173                         if (--argc < 1) goto bad;
174                         outfile= *(++argv);
175                         }
176                 else if (strcmp(*argv,"-CApath") == 0)
177                         {
178                         if (--argc < 1) goto bad;
179                         CApath = *(++argv);
180                         do_ver = 1;
181                         }
182                 else if (strcmp(*argv,"-CAfile") == 0)
183                         {
184                         if (--argc < 1) goto bad;
185                         CAfile = *(++argv);
186                         do_ver = 1;
187                         }
188                 else if (strcmp(*argv,"-verify") == 0)
189                         do_ver = 1;
190                 else if (strcmp(*argv,"-text") == 0)
191                         text = 1;
192                 else if (strcmp(*argv,"-hash") == 0)
193                         hash= ++num;
194                 else if (strcmp(*argv,"-nameopt") == 0)
195                         {
196                         if (--argc < 1) goto bad;
197                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
198                         }
199                 else if (strcmp(*argv,"-issuer") == 0)
200                         issuer= ++num;
201                 else if (strcmp(*argv,"-lastupdate") == 0)
202                         lastupdate= ++num;
203                 else if (strcmp(*argv,"-nextupdate") == 0)
204                         nextupdate= ++num;
205                 else if (strcmp(*argv,"-noout") == 0)
206                         noout= ++num;
207                 else if (strcmp(*argv,"-fingerprint") == 0)
208                         fingerprint= ++num;
209                 else if (strcmp(*argv,"-crlnumber") == 0)
210                         crlnumber= ++num;
211                 else if (strcmp(*argv,"-badsig") == 0)
212                         badsig = 1;
213                 else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
214                         {
215                         /* ok */
216                         digest=md_alg;
217                         }
218                 else
219                         {
220                         BIO_printf(bio_err,"unknown option %s\n",*argv);
221                         badops=1;
222                         break;
223                         }
224                 argc--;
225                 argv++;
226                 }
227
228         if (badops)
229                 {
230 bad:
231                 for (pp=crl_usage; (*pp != NULL); pp++)
232                         BIO_printf(bio_err,"%s",*pp);
233                 goto end;
234                 }
235
236         ERR_load_crypto_strings();
237         x=load_crl(infile,informat);
238         if (x == NULL) { goto end; }
239
240         if(do_ver) {
241                 store = X509_STORE_new();
242                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
243                 if (lookup == NULL) goto end;
244                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
245                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
246                         
247                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
248                 if (lookup == NULL) goto end;
249                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
250                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
251                 ERR_clear_error();
252
253                 if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
254                         BIO_printf(bio_err,
255                                 "Error initialising X509 store\n");
256                         goto end;
257                 }
258
259                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
260                                         X509_CRL_get_issuer(x), &xobj);
261                 if(i <= 0) {
262                         BIO_printf(bio_err,
263                                 "Error getting CRL issuer certificate\n");
264                         goto end;
265                 }
266                 pkey = X509_get_pubkey(xobj.data.x509);
267                 X509_OBJECT_free_contents(&xobj);
268                 if(!pkey) {
269                         BIO_printf(bio_err,
270                                 "Error getting CRL issuer public key\n");
271                         goto end;
272                 }
273                 i = X509_CRL_verify(x, pkey);
274                 EVP_PKEY_free(pkey);
275                 if(i < 0) goto end;
276                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
277                 else BIO_printf(bio_err, "verify OK\n");
278         }
279
280         if (num)
281                 {
282                 for (i=1; i<=num; i++)
283                         {
284                         if (issuer == i)
285                                 {
286                                 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
287                                 }
288                         if (crlnumber == i)
289                                 {
290                                 ASN1_INTEGER *crlnum;
291                                 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number,
292                                                               NULL, NULL);
293                                 BIO_printf(bio_out,"crlNumber=");
294                                 if (crlnum)
295                                         {
296                                         i2a_ASN1_INTEGER(bio_out, crlnum);
297                                         ASN1_INTEGER_free(crlnum);
298                                         }
299                                 else
300                                         BIO_puts(bio_out, "<NONE>");
301                                 BIO_printf(bio_out,"\n");
302                                 }
303                         if (hash == i)
304                                 {
305                                 BIO_printf(bio_out,"%08lx\n",
306                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
307                                 }
308                         if (lastupdate == i)
309                                 {
310                                 BIO_printf(bio_out,"lastUpdate=");
311                                 ASN1_TIME_print(bio_out,
312                                                 X509_CRL_get_lastUpdate(x));
313                                 BIO_printf(bio_out,"\n");
314                                 }
315                         if (nextupdate == i)
316                                 {
317                                 BIO_printf(bio_out,"nextUpdate=");
318                                 if (X509_CRL_get_nextUpdate(x)) 
319                                         ASN1_TIME_print(bio_out,
320                                                 X509_CRL_get_nextUpdate(x));
321                                 else
322                                         BIO_printf(bio_out,"NONE");
323                                 BIO_printf(bio_out,"\n");
324                                 }
325                         if (fingerprint == i)
326                                 {
327                                 int j;
328                                 unsigned int n;
329                                 unsigned char md[EVP_MAX_MD_SIZE];
330
331                                 if (!X509_CRL_digest(x,digest,md,&n))
332                                         {
333                                         BIO_printf(bio_err,"out of memory\n");
334                                         goto end;
335                                         }
336                                 BIO_printf(bio_out,"%s Fingerprint=",
337                                                 OBJ_nid2sn(EVP_MD_type(digest)));
338                                 for (j=0; j<(int)n; j++)
339                                         {
340                                         BIO_printf(bio_out,"%02X%c",md[j],
341                                                 (j+1 == (int)n)
342                                                 ?'\n':':');
343                                         }
344                                 }
345                         }
346                 }
347
348         out=BIO_new(BIO_s_file());
349         if (out == NULL)
350                 {
351                 ERR_print_errors(bio_err);
352                 goto end;
353                 }
354
355         if (outfile == NULL)
356                 {
357                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
358 #ifdef OPENSSL_SYS_VMS
359                 {
360                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
361                 out = BIO_push(tmpbio, out);
362                 }
363 #endif
364                 }
365         else
366                 {
367                 if (BIO_write_filename(out,outfile) <= 0)
368                         {
369                         perror(outfile);
370                         goto end;
371                         }
372                 }
373
374         if (text) X509_CRL_print(out, x);
375
376         if (noout) 
377                 {
378                 ret = 0;
379                 goto end;
380                 }
381
382         if (badsig)
383                 x->signature->data[x->signature->length - 1] ^= 0x1;
384
385         if      (outformat == FORMAT_ASN1)
386                 i=(int)i2d_X509_CRL_bio(out,x);
387         else if (outformat == FORMAT_PEM)
388                 i=PEM_write_bio_X509_CRL(out,x);
389         else    
390                 {
391                 BIO_printf(bio_err,"bad output format specified for outfile\n");
392                 goto end;
393                 }
394         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
395         ret=0;
396 end:
397         BIO_free_all(out);
398         BIO_free_all(bio_out);
399         bio_out=NULL;
400         X509_CRL_free(x);
401         if(store) {
402                 X509_STORE_CTX_cleanup(&ctx);
403                 X509_STORE_free(store);
404         }
405         apps_shutdown();
406         OPENSSL_EXIT(ret);
407         }