Make tls1_check_chain return a set of flags indicating checks passed
[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 X509_CRL *load_crl(char *file, int format);
97 static BIO *bio_out=NULL;
98
99 int MAIN(int, char **);
100
101 int MAIN(int argc, char **argv)
102         {
103         unsigned long nmflag = 0;
104         X509_CRL *x=NULL;
105         char *CAfile = NULL, *CApath = NULL;
106         int ret=1,i,num,badops=0;
107         BIO *out=NULL;
108         int informat,outformat;
109         char *infile=NULL,*outfile=NULL;
110         int hash=0,issuer=0,lastupdate=0,nextupdate=0,noout=0,text=0;
111         int fingerprint = 0, crlnumber = 0;
112         const char **pp;
113         X509_STORE *store = NULL;
114         X509_STORE_CTX ctx;
115         X509_LOOKUP *lookup = NULL;
116         X509_OBJECT xobj;
117         EVP_PKEY *pkey;
118         int do_ver = 0;
119         const EVP_MD *md_alg,*digest=EVP_sha1();
120
121         apps_startup();
122
123         if (bio_err == NULL)
124                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
125                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
126
127         if (!load_config(bio_err, NULL))
128                 goto end;
129
130         if (bio_out == NULL)
131                 if ((bio_out=BIO_new(BIO_s_file())) != NULL)
132                         {
133                         BIO_set_fp(bio_out,stdout,BIO_NOCLOSE);
134 #ifdef OPENSSL_SYS_VMS
135                         {
136                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
137                         bio_out = BIO_push(tmpbio, bio_out);
138                         }
139 #endif
140                         }
141
142         informat=FORMAT_PEM;
143         outformat=FORMAT_PEM;
144
145         argc--;
146         argv++;
147         num=0;
148         while (argc >= 1)
149                 {
150 #ifdef undef
151                 if      (strcmp(*argv,"-p") == 0)
152                         {
153                         if (--argc < 1) goto bad;
154                         if (!args_from_file(++argv,Nargc,Nargv)) { goto end; }*/
155                         }
156 #endif
157                 if      (strcmp(*argv,"-inform") == 0)
158                         {
159                         if (--argc < 1) goto bad;
160                         informat=str2fmt(*(++argv));
161                         }
162                 else if (strcmp(*argv,"-outform") == 0)
163                         {
164                         if (--argc < 1) goto bad;
165                         outformat=str2fmt(*(++argv));
166                         }
167                 else if (strcmp(*argv,"-in") == 0)
168                         {
169                         if (--argc < 1) goto bad;
170                         infile= *(++argv);
171                         }
172                 else if (strcmp(*argv,"-out") == 0)
173                         {
174                         if (--argc < 1) goto bad;
175                         outfile= *(++argv);
176                         }
177                 else if (strcmp(*argv,"-CApath") == 0)
178                         {
179                         if (--argc < 1) goto bad;
180                         CApath = *(++argv);
181                         do_ver = 1;
182                         }
183                 else if (strcmp(*argv,"-CAfile") == 0)
184                         {
185                         if (--argc < 1) goto bad;
186                         CAfile = *(++argv);
187                         do_ver = 1;
188                         }
189                 else if (strcmp(*argv,"-verify") == 0)
190                         do_ver = 1;
191                 else if (strcmp(*argv,"-text") == 0)
192                         text = 1;
193                 else if (strcmp(*argv,"-hash") == 0)
194                         hash= ++num;
195                 else if (strcmp(*argv,"-nameopt") == 0)
196                         {
197                         if (--argc < 1) goto bad;
198                         if (!set_name_ex(&nmflag, *(++argv))) goto bad;
199                         }
200                 else if (strcmp(*argv,"-issuer") == 0)
201                         issuer= ++num;
202                 else if (strcmp(*argv,"-lastupdate") == 0)
203                         lastupdate= ++num;
204                 else if (strcmp(*argv,"-nextupdate") == 0)
205                         nextupdate= ++num;
206                 else if (strcmp(*argv,"-noout") == 0)
207                         noout= ++num;
208                 else if (strcmp(*argv,"-fingerprint") == 0)
209                         fingerprint= ++num;
210                 else if (strcmp(*argv,"-crlnumber") == 0)
211                         crlnumber= ++num;
212                 else if ((md_alg=EVP_get_digestbyname(*argv + 1)))
213                         {
214                         /* ok */
215                         digest=md_alg;
216                         }
217                 else
218                         {
219                         BIO_printf(bio_err,"unknown option %s\n",*argv);
220                         badops=1;
221                         break;
222                         }
223                 argc--;
224                 argv++;
225                 }
226
227         if (badops)
228                 {
229 bad:
230                 for (pp=crl_usage; (*pp != NULL); pp++)
231                         BIO_printf(bio_err,"%s",*pp);
232                 goto end;
233                 }
234
235         ERR_load_crypto_strings();
236         x=load_crl(infile,informat);
237         if (x == NULL) { goto end; }
238
239         if(do_ver) {
240                 store = X509_STORE_new();
241                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
242                 if (lookup == NULL) goto end;
243                 if (!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM))
244                         X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
245                         
246                 lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
247                 if (lookup == NULL) goto end;
248                 if (!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM))
249                         X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
250                 ERR_clear_error();
251
252                 if(!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
253                         BIO_printf(bio_err,
254                                 "Error initialising X509 store\n");
255                         goto end;
256                 }
257
258                 i = X509_STORE_get_by_subject(&ctx, X509_LU_X509, 
259                                         X509_CRL_get_issuer(x), &xobj);
260                 if(i <= 0) {
261                         BIO_printf(bio_err,
262                                 "Error getting CRL issuer certificate\n");
263                         goto end;
264                 }
265                 pkey = X509_get_pubkey(xobj.data.x509);
266                 X509_OBJECT_free_contents(&xobj);
267                 if(!pkey) {
268                         BIO_printf(bio_err,
269                                 "Error getting CRL issuer public key\n");
270                         goto end;
271                 }
272                 i = X509_CRL_verify(x, pkey);
273                 EVP_PKEY_free(pkey);
274                 if(i < 0) goto end;
275                 if(i == 0) BIO_printf(bio_err, "verify failure\n");
276                 else BIO_printf(bio_err, "verify OK\n");
277         }
278
279         if (num)
280                 {
281                 for (i=1; i<=num; i++)
282                         {
283                         if (issuer == i)
284                                 {
285                                 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x), nmflag);
286                                 }
287                         if (crlnumber == i)
288                                 {
289                                 ASN1_INTEGER *crlnum;
290                                 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number,
291                                                               NULL, NULL);
292                                 BIO_printf(bio_out,"crlNumber=");
293                                 if (crlnum)
294                                         {
295                                         i2a_ASN1_INTEGER(bio_out, crlnum);
296                                         ASN1_INTEGER_free(crlnum);
297                                         }
298                                 else
299                                         BIO_puts(bio_out, "<NONE>");
300                                 BIO_printf(bio_out,"\n");
301                                 }
302                         if (hash == i)
303                                 {
304                                 BIO_printf(bio_out,"%08lx\n",
305                                         X509_NAME_hash(X509_CRL_get_issuer(x)));
306                                 }
307                         if (lastupdate == i)
308                                 {
309                                 BIO_printf(bio_out,"lastUpdate=");
310                                 ASN1_TIME_print(bio_out,
311                                                 X509_CRL_get_lastUpdate(x));
312                                 BIO_printf(bio_out,"\n");
313                                 }
314                         if (nextupdate == i)
315                                 {
316                                 BIO_printf(bio_out,"nextUpdate=");
317                                 if (X509_CRL_get_nextUpdate(x)) 
318                                         ASN1_TIME_print(bio_out,
319                                                 X509_CRL_get_nextUpdate(x));
320                                 else
321                                         BIO_printf(bio_out,"NONE");
322                                 BIO_printf(bio_out,"\n");
323                                 }
324                         if (fingerprint == i)
325                                 {
326                                 int j;
327                                 unsigned int n;
328                                 unsigned char md[EVP_MAX_MD_SIZE];
329
330                                 if (!X509_CRL_digest(x,digest,md,&n))
331                                         {
332                                         BIO_printf(bio_err,"out of memory\n");
333                                         goto end;
334                                         }
335                                 BIO_printf(bio_out,"%s Fingerprint=",
336                                                 OBJ_nid2sn(EVP_MD_type(digest)));
337                                 for (j=0; j<(int)n; j++)
338                                         {
339                                         BIO_printf(bio_out,"%02X%c",md[j],
340                                                 (j+1 == (int)n)
341                                                 ?'\n':':');
342                                         }
343                                 }
344                         }
345                 }
346
347         out=BIO_new(BIO_s_file());
348         if (out == NULL)
349                 {
350                 ERR_print_errors(bio_err);
351                 goto end;
352                 }
353
354         if (outfile == NULL)
355                 {
356                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
357 #ifdef OPENSSL_SYS_VMS
358                 {
359                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
360                 out = BIO_push(tmpbio, out);
361                 }
362 #endif
363                 }
364         else
365                 {
366                 if (BIO_write_filename(out,outfile) <= 0)
367                         {
368                         perror(outfile);
369                         goto end;
370                         }
371                 }
372
373         if (text) X509_CRL_print(out, x);
374
375         if (noout) 
376                 {
377                 ret = 0;
378                 goto end;
379                 }
380
381         if      (outformat == FORMAT_ASN1)
382                 i=(int)i2d_X509_CRL_bio(out,x);
383         else if (outformat == FORMAT_PEM)
384                 i=PEM_write_bio_X509_CRL(out,x);
385         else    
386                 {
387                 BIO_printf(bio_err,"bad output format specified for outfile\n");
388                 goto end;
389                 }
390         if (!i) { BIO_printf(bio_err,"unable to write CRL\n"); goto end; }
391         ret=0;
392 end:
393         BIO_free_all(out);
394         BIO_free_all(bio_out);
395         bio_out=NULL;
396         X509_CRL_free(x);
397         if(store) {
398                 X509_STORE_CTX_cleanup(&ctx);
399                 X509_STORE_free(store);
400         }
401         apps_shutdown();
402         OPENSSL_EXIT(ret);
403         }
404
405 static X509_CRL *load_crl(char *infile, int format)
406         {
407         X509_CRL *x=NULL;
408         BIO *in=NULL;
409
410         in=BIO_new(BIO_s_file());
411         if (in == NULL)
412                 {
413                 ERR_print_errors(bio_err);
414                 goto end;
415                 }
416
417         if (infile == NULL)
418                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
419         else
420                 {
421                 if (BIO_read_filename(in,infile) <= 0)
422                         {
423                         perror(infile);
424                         goto end;
425                         }
426                 }
427         if      (format == FORMAT_ASN1)
428                 x=d2i_X509_CRL_bio(in,NULL);
429         else if (format == FORMAT_PEM)
430                 x=PEM_read_bio_X509_CRL(in,NULL,NULL,NULL);
431         else    {
432                 BIO_printf(bio_err,"bad input format specified for input crl\n");
433                 goto end;
434                 }
435         if (x == NULL)
436                 {
437                 BIO_printf(bio_err,"unable to load CRL\n");
438                 ERR_print_errors(bio_err);
439                 goto end;
440                 }
441         
442 end:
443         BIO_free(in);
444         return(x);
445         }
446