crl.c revision 296341 
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",
96    NULL
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 =
114        0, text = 0;
115#ifndef OPENSSL_NO_MD5
116    int hash_old = 0;
117#endif
118    int fingerprint = 0, crlnumber = 0;
119    const char **pp;
120    X509_STORE *store = NULL;
121    X509_STORE_CTX ctx;
122    X509_LOOKUP *lookup = NULL;
123    X509_OBJECT xobj;
124    EVP_PKEY *pkey;
125    int do_ver = 0;
126    const EVP_MD *md_alg, *digest = EVP_sha1();
127
128    apps_startup();
129
130    if (bio_err == NULL)
131        if ((bio_err = BIO_new(BIO_s_file())) != NULL)
132            BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
133
134    if (!load_config(bio_err, NULL))
135        goto end;
136
137    if (bio_out == NULL)
138        if ((bio_out = BIO_new(BIO_s_file())) != NULL) {
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#ifdef undef
156        if (strcmp(*argv, "-p") == 0) {
157            if (--argc < 1)
158                goto bad;
159            if (!args_from_file(++argv, Nargc, Nargv)) {
160                goto end;
161            }
162        */}
163#endif
164        if (strcmp(*argv, "-inform") == 0) {
165            if (--argc < 1)
166                goto bad;
167            informat = str2fmt(*(++argv));
168        } else if (strcmp(*argv, "-outform") == 0) {
169            if (--argc < 1)
170                goto bad;
171            outformat = str2fmt(*(++argv));
172        } else if (strcmp(*argv, "-in") == 0) {
173            if (--argc < 1)
174                goto bad;
175            infile = *(++argv);
176        } else if (strcmp(*argv, "-out") == 0) {
177            if (--argc < 1)
178                goto bad;
179            outfile = *(++argv);
180        } else if (strcmp(*argv, "-CApath") == 0) {
181            if (--argc < 1)
182                goto bad;
183            CApath = *(++argv);
184            do_ver = 1;
185        } else if (strcmp(*argv, "-CAfile") == 0) {
186            if (--argc < 1)
187                goto bad;
188            CAfile = *(++argv);
189            do_ver = 1;
190        } else if (strcmp(*argv, "-verify") == 0)
191            do_ver = 1;
192        else if (strcmp(*argv, "-text") == 0)
193            text = 1;
194        else if (strcmp(*argv, "-hash") == 0)
195            hash = ++num;
196#ifndef OPENSSL_NO_MD5
197        else if (strcmp(*argv, "-hash_old") == 0)
198            hash_old = ++num;
199#endif
200        else if (strcmp(*argv, "-nameopt") == 0) {
201            if (--argc < 1)
202                goto bad;
203            if (!set_name_ex(&nmflag, *(++argv)))
204                goto bad;
205        } else if (strcmp(*argv, "-issuer") == 0)
206            issuer = ++num;
207        else if (strcmp(*argv, "-lastupdate") == 0)
208            lastupdate = ++num;
209        else if (strcmp(*argv, "-nextupdate") == 0)
210            nextupdate = ++num;
211        else if (strcmp(*argv, "-noout") == 0)
212            noout = ++num;
213        else if (strcmp(*argv, "-fingerprint") == 0)
214            fingerprint = ++num;
215        else if (strcmp(*argv, "-crlnumber") == 0)
216            crlnumber = ++num;
217        else if ((md_alg = EVP_get_digestbyname(*argv + 1))) {
218            /* ok */
219            digest = md_alg;
220        } else {
221            BIO_printf(bio_err, "unknown option %s\n", *argv);
222            badops = 1;
223            break;
224        }
225        argc--;
226        argv++;
227    }
228
229    if (badops) {
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) {
239        goto end;
240    }
241
242    if (do_ver) {
243        store = X509_STORE_new();
244        lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
245        if (lookup == NULL)
246            goto end;
247        if (!X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM))
248            X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
249
250        lookup = X509_STORE_add_lookup(store, X509_LOOKUP_hash_dir());
251        if (lookup == NULL)
252            goto end;
253        if (!X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM))
254            X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
255        ERR_clear_error();
256
257        if (!X509_STORE_CTX_init(&ctx, store, NULL, NULL)) {
258            BIO_printf(bio_err, "Error initialising X509 store\n");
259            goto end;
260        }
261
262        i = X509_STORE_get_by_subject(&ctx, X509_LU_X509,
263                                      X509_CRL_get_issuer(x), &xobj);
264        if (i <= 0) {
265            BIO_printf(bio_err, "Error getting CRL issuer certificate\n");
266            goto end;
267        }
268        pkey = X509_get_pubkey(xobj.data.x509);
269        X509_OBJECT_free_contents(&xobj);
270        if (!pkey) {
271            BIO_printf(bio_err, "Error getting CRL issuer public key\n");
272            goto end;
273        }
274        i = X509_CRL_verify(x, pkey);
275        EVP_PKEY_free(pkey);
276        if (i < 0)
277            goto end;
278        if (i == 0)
279            BIO_printf(bio_err, "verify failure\n");
280        else
281            BIO_printf(bio_err, "verify OK\n");
282    }
283
284    if (num) {
285        for (i = 1; i <= num; i++) {
286            if (issuer == i) {
287                print_name(bio_out, "issuer=", X509_CRL_get_issuer(x),
288                           nmflag);
289            }
290            if (crlnumber == i) {
291                ASN1_INTEGER *crlnum;
292                crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL);
293                BIO_printf(bio_out, "crlNumber=");
294                if (crlnum) {
295                    i2a_ASN1_INTEGER(bio_out, crlnum);
296                    ASN1_INTEGER_free(crlnum);
297                } else
298                    BIO_puts(bio_out, "<NONE>");
299                BIO_printf(bio_out, "\n");
300            }
301            if (hash == i) {
302                BIO_printf(bio_out, "%08lx\n",
303                           X509_NAME_hash(X509_CRL_get_issuer(x)));
304            }
305#ifndef OPENSSL_NO_MD5
306            if (hash_old == i) {
307                BIO_printf(bio_out, "%08lx\n",
308                           X509_NAME_hash_old(X509_CRL_get_issuer(x)));
309            }
310#endif
311            if (lastupdate == i) {
312                BIO_printf(bio_out, "lastUpdate=");
313                ASN1_TIME_print(bio_out, X509_CRL_get_lastUpdate(x));
314                BIO_printf(bio_out, "\n");
315            }
316            if (nextupdate == i) {
317                BIO_printf(bio_out, "nextUpdate=");
318                if (X509_CRL_get_nextUpdate(x))
319                    ASN1_TIME_print(bio_out, 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                int j;
326                unsigned int n;
327                unsigned char md[EVP_MAX_MD_SIZE];
328
329                if (!X509_CRL_digest(x, digest, md, &n)) {
330                    BIO_printf(bio_err, "out of memory\n");
331                    goto end;
332                }
333                BIO_printf(bio_out, "%s Fingerprint=",
334                           OBJ_nid2sn(EVP_MD_type(digest)));
335                for (j = 0; j < (int)n; j++) {
336                    BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n)
337                               ? '\n' : ':');
338                }
339            }
340        }
341    }
342
343    out = BIO_new(BIO_s_file());
344    if (out == NULL) {
345        ERR_print_errors(bio_err);
346        goto end;
347    }
348
349    if (outfile == NULL) {
350        BIO_set_fp(out, stdout, BIO_NOCLOSE);
351#ifdef OPENSSL_SYS_VMS
352        {
353            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
354            out = BIO_push(tmpbio, out);
355        }
356#endif
357    } else {
358        if (BIO_write_filename(out, outfile) <= 0) {
359            perror(outfile);
360            goto end;
361        }
362    }
363
364    if (text)
365        X509_CRL_print(out, x);
366
367    if (noout) {
368        ret = 0;
369        goto end;
370    }
371
372    if (outformat == FORMAT_ASN1)
373        i = (int)i2d_X509_CRL_bio(out, x);
374    else if (outformat == FORMAT_PEM)
375        i = PEM_write_bio_X509_CRL(out, x);
376    else {
377        BIO_printf(bio_err, "bad output format specified for outfile\n");
378        goto end;
379    }
380    if (!i) {
381        BIO_printf(bio_err, "unable to write CRL\n");
382        goto end;
383    }
384    ret = 0;
385 end:
386    BIO_free_all(out);
387    BIO_free_all(bio_out);
388    bio_out = NULL;
389    X509_CRL_free(x);
390    if (store) {
391        X509_STORE_CTX_cleanup(&ctx);
392        X509_STORE_free(store);
393    }
394    apps_shutdown();
395    OPENSSL_EXIT(ret);
396}
397
398static X509_CRL *load_crl(char *infile, int format)
399{
400    X509_CRL *x = NULL;
401    BIO *in = NULL;
402
403    in = BIO_new(BIO_s_file());
404    if (in == NULL) {
405        ERR_print_errors(bio_err);
406        goto end;
407    }
408
409    if (infile == NULL)
410        BIO_set_fp(in, stdin, BIO_NOCLOSE);
411    else {
412        if (BIO_read_filename(in, infile) <= 0) {
413            perror(infile);
414            goto end;
415        }
416    }
417    if (format == FORMAT_ASN1)
418        x = d2i_X509_CRL_bio(in, NULL);
419    else if (format == FORMAT_PEM)
420        x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
421    else {
422        BIO_printf(bio_err, "bad input format specified for input crl\n");
423        goto end;
424    }
425    if (x == NULL) {
426        BIO_printf(bio_err, "unable to load CRL\n");
427        ERR_print_errors(bio_err);
428        goto end;
429    }
430
431 end:
432    BIO_free(in);
433    return (x);
434}
435