1 /*
2 * Copyright 1995-2024 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include "apps.h"
14 #include "progs.h"
15 #include <openssl/bio.h>
16 #include <openssl/err.h>
17 #include <openssl/x509.h>
18 #include <openssl/x509v3.h>
19 #include <openssl/pem.h>
20
21 typedef enum OPTION_choice {
22 OPT_COMMON,
23 OPT_INFORM,
24 OPT_IN,
25 OPT_OUTFORM,
26 OPT_OUT,
27 OPT_KEYFORM,
28 OPT_KEY,
29 OPT_ISSUER,
30 OPT_LASTUPDATE,
31 OPT_NEXTUPDATE,
32 OPT_FINGERPRINT,
33 OPT_CRLNUMBER,
34 OPT_BADSIG,
35 OPT_GENDELTA,
36 OPT_CAPATH,
37 OPT_CAFILE,
38 OPT_CASTORE,
39 OPT_NOCAPATH,
40 OPT_NOCAFILE,
41 OPT_NOCASTORE,
42 OPT_VERIFY,
43 OPT_DATEOPT,
44 OPT_TEXT,
45 OPT_HASH,
46 OPT_HASH_OLD,
47 OPT_NOOUT,
48 OPT_NAMEOPT,
49 OPT_MD,
50 OPT_PROV_ENUM
51 } OPTION_CHOICE;
52
53 const OPTIONS crl_options[] = {
54 OPT_SECTION("General"),
55 { "help", OPT_HELP, '-', "Display this summary" },
56 { "verify", OPT_VERIFY, '-', "Verify CRL signature" },
57
58 OPT_SECTION("Input"),
59 { "in", OPT_IN, '<', "Input file - default stdin" },
60 { "inform", OPT_INFORM, 'F', "CRL input format (DER or PEM); has no effect" },
61 { "key", OPT_KEY, '<', "CRL signing Private key to use" },
62 { "keyform", OPT_KEYFORM, 'F', "Private key file format (DER/PEM/P12); has no effect" },
63
64 OPT_SECTION("Output"),
65 { "out", OPT_OUT, '>', "output file - default stdout" },
66 { "outform", OPT_OUTFORM, 'F', "Output format - default PEM" },
67 { "dateopt", OPT_DATEOPT, 's', "Datetime format used for printing. (rfc_822/iso_8601). Default is rfc_822." },
68 { "text", OPT_TEXT, '-', "Print out a text format version" },
69 { "hash", OPT_HASH, '-', "Print hash value" },
70 #ifndef OPENSSL_NO_MD5
71 { "hash_old", OPT_HASH_OLD, '-', "Print old-style (MD5) hash value" },
72 #endif
73 { "nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options" },
74 { "", OPT_MD, '-', "Any supported digest" },
75
76 OPT_SECTION("CRL"),
77 { "issuer", OPT_ISSUER, '-', "Print issuer DN" },
78 { "lastupdate", OPT_LASTUPDATE, '-', "Set lastUpdate field" },
79 { "nextupdate", OPT_NEXTUPDATE, '-', "Set nextUpdate field" },
80 { "noout", OPT_NOOUT, '-', "No CRL output" },
81 { "fingerprint", OPT_FINGERPRINT, '-', "Print the crl fingerprint" },
82 { "crlnumber", OPT_CRLNUMBER, '-', "Print CRL number" },
83 { "badsig", OPT_BADSIG, '-', "Corrupt last byte of loaded CRL signature (for test)" },
84 { "gendelta", OPT_GENDELTA, '<', "Other CRL to compare/diff to the Input one" },
85
86 OPT_SECTION("Certificate"),
87 { "CApath", OPT_CAPATH, '/', "Verify CRL using certificates in dir" },
88 { "CAfile", OPT_CAFILE, '<', "Verify CRL using certificates in file name" },
89 { "CAstore", OPT_CASTORE, ':', "Verify CRL using certificates in store URI" },
90 { "no-CAfile", OPT_NOCAFILE, '-',
91 "Do not load the default certificates file" },
92 { "no-CApath", OPT_NOCAPATH, '-',
93 "Do not load certificates from the default certificates directory" },
94 { "no-CAstore", OPT_NOCASTORE, '-',
95 "Do not load certificates from the default certificates store" },
96 OPT_PROV_OPTIONS,
97 { NULL }
98 };
99
crl_main(int argc,char ** argv)100 int crl_main(int argc, char **argv)
101 {
102 X509_CRL *x = NULL;
103 BIO *out = NULL;
104 X509_STORE *store = NULL;
105 X509_STORE_CTX *ctx = NULL;
106 X509_LOOKUP *lookup = NULL;
107 X509_OBJECT *xobj = NULL;
108 EVP_PKEY *pkey;
109 EVP_MD *digest = (EVP_MD *)EVP_sha1();
110 char *infile = NULL, *outfile = NULL, *crldiff = NULL, *keyfile = NULL;
111 char *digestname = NULL;
112 const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL, *prog;
113 OPTION_CHOICE o;
114 int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout = 0;
115 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyformat = FORMAT_UNDEF;
116 int ret = 1, num = 0, badsig = 0, fingerprint = 0, crlnumber = 0;
117 int text = 0, do_ver = 0, noCAfile = 0, noCApath = 0, noCAstore = 0;
118 unsigned long dateopt = ASN1_DTFLGS_RFC822;
119 int i;
120 #ifndef OPENSSL_NO_MD5
121 int hash_old = 0;
122 #endif
123
124 opt_set_unknown_name("digest");
125 prog = opt_init(argc, argv, crl_options);
126 while ((o = opt_next()) != OPT_EOF) {
127 switch (o) {
128 case OPT_EOF:
129 case OPT_ERR:
130 opthelp:
131 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
132 goto end;
133 case OPT_HELP:
134 opt_help(crl_options);
135 ret = 0;
136 goto end;
137 case OPT_INFORM:
138 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
139 goto opthelp;
140 break;
141 case OPT_IN:
142 infile = opt_arg();
143 break;
144 case OPT_OUTFORM:
145 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
146 goto opthelp;
147 break;
148 case OPT_OUT:
149 outfile = opt_arg();
150 break;
151 case OPT_KEYFORM:
152 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyformat))
153 goto opthelp;
154 break;
155 case OPT_KEY:
156 keyfile = opt_arg();
157 break;
158 case OPT_GENDELTA:
159 crldiff = opt_arg();
160 break;
161 case OPT_CAPATH:
162 CApath = opt_arg();
163 do_ver = 1;
164 break;
165 case OPT_CAFILE:
166 CAfile = opt_arg();
167 do_ver = 1;
168 break;
169 case OPT_CASTORE:
170 CAstore = opt_arg();
171 do_ver = 1;
172 break;
173 case OPT_NOCAPATH:
174 noCApath = 1;
175 break;
176 case OPT_NOCAFILE:
177 noCAfile = 1;
178 break;
179 case OPT_NOCASTORE:
180 noCAstore = 1;
181 break;
182 case OPT_HASH_OLD:
183 #ifndef OPENSSL_NO_MD5
184 hash_old = ++num;
185 #endif
186 break;
187 case OPT_VERIFY:
188 do_ver = 1;
189 break;
190 case OPT_DATEOPT:
191 if (!set_dateopt(&dateopt, opt_arg()))
192 goto opthelp;
193 break;
194 case OPT_TEXT:
195 text = 1;
196 break;
197 case OPT_HASH:
198 hash = ++num;
199 break;
200 case OPT_ISSUER:
201 issuer = ++num;
202 break;
203 case OPT_LASTUPDATE:
204 lastupdate = ++num;
205 break;
206 case OPT_NEXTUPDATE:
207 nextupdate = ++num;
208 break;
209 case OPT_NOOUT:
210 noout = 1;
211 break;
212 case OPT_FINGERPRINT:
213 fingerprint = ++num;
214 break;
215 case OPT_CRLNUMBER:
216 crlnumber = ++num;
217 break;
218 case OPT_BADSIG:
219 badsig = 1;
220 break;
221 case OPT_NAMEOPT:
222 if (!set_nameopt(opt_arg()))
223 goto opthelp;
224 break;
225 case OPT_MD:
226 digestname = opt_unknown();
227 break;
228 case OPT_PROV_CASES:
229 if (!opt_provider(o))
230 goto end;
231 break;
232 }
233 }
234
235 /* No remaining args. */
236 if (!opt_check_rest_arg(NULL))
237 goto opthelp;
238
239 if (!opt_md(digestname, &digest))
240 goto opthelp;
241 x = load_crl(infile, informat, 1, "CRL");
242 if (x == NULL)
243 goto end;
244
245 if (do_ver) {
246 if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
247 CAstore, noCAstore))
248 == NULL)
249 goto end;
250 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
251 if (lookup == NULL)
252 goto end;
253 ctx = X509_STORE_CTX_new();
254 if (ctx == NULL || !X509_STORE_CTX_init(ctx, store, NULL, NULL)) {
255 BIO_printf(bio_err, "Error initialising X509 store\n");
256 goto end;
257 }
258
259 xobj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509,
260 X509_CRL_get_issuer(x));
261 if (xobj == NULL) {
262 BIO_printf(bio_err, "Error getting CRL issuer certificate\n");
263 goto end;
264 }
265 pkey = X509_get_pubkey(X509_OBJECT_get0_X509(xobj));
266 X509_OBJECT_free(xobj);
267 if (pkey == NULL) {
268 BIO_printf(bio_err, "Error getting CRL issuer public key\n");
269 goto end;
270 }
271 i = X509_CRL_verify(x, pkey);
272 EVP_PKEY_free(pkey);
273 if (i < 0)
274 goto end;
275 if (i == 0) {
276 BIO_printf(bio_err, "verify failure\n");
277 goto end;
278 } else
279 BIO_printf(bio_err, "verify OK\n");
280 }
281
282 if (crldiff != NULL) {
283 X509_CRL *newcrl, *delta;
284 if (!keyfile) {
285 BIO_puts(bio_err, "Missing CRL signing key\n");
286 goto end;
287 }
288 newcrl = load_crl(crldiff, informat, 0, "other CRL");
289 if (!newcrl)
290 goto end;
291 pkey = load_key(keyfile, keyformat, 0, NULL, NULL, "CRL signing key");
292 if (pkey == NULL) {
293 X509_CRL_free(newcrl);
294 goto end;
295 }
296 delta = X509_CRL_diff(x, newcrl, pkey, digest, 0);
297 X509_CRL_free(newcrl);
298 EVP_PKEY_free(pkey);
299 if (delta) {
300 X509_CRL_free(x);
301 x = delta;
302 } else {
303 BIO_puts(bio_err, "Error creating delta CRL\n");
304 goto end;
305 }
306 }
307
308 if (badsig) {
309 const ASN1_BIT_STRING *sig;
310
311 X509_CRL_get0_signature(x, &sig, NULL);
312 corrupt_signature(sig);
313 }
314
315 if (num) {
316 for (i = 1; i <= num; i++) {
317 if (issuer == i) {
318 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x));
319 }
320 if (crlnumber == i) {
321 ASN1_INTEGER *crlnum;
322
323 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL);
324 BIO_printf(bio_out, "crlNumber=");
325 if (crlnum) {
326 BIO_puts(bio_out, "0x");
327 i2a_ASN1_INTEGER(bio_out, crlnum);
328 ASN1_INTEGER_free(crlnum);
329 } else {
330 BIO_puts(bio_out, "<NONE>");
331 }
332 BIO_printf(bio_out, "\n");
333 }
334 if (hash == i) {
335 int ok;
336 unsigned long hash_value = X509_NAME_hash_ex(X509_CRL_get_issuer(x), app_get0_libctx(),
337 app_get0_propq(), &ok);
338
339 if (num > 1)
340 BIO_printf(bio_out, "issuer name hash=");
341 if (ok) {
342 BIO_printf(bio_out, "%08lx\n", hash_value);
343 } else {
344 BIO_puts(bio_out, "<ERROR>");
345 goto end;
346 }
347 }
348 #ifndef OPENSSL_NO_MD5
349 if (hash_old == i) {
350 if (num > 1)
351 BIO_printf(bio_out, "issuer name old hash=");
352 BIO_printf(bio_out, "%08lx\n",
353 X509_NAME_hash_old(X509_CRL_get_issuer(x)));
354 }
355 #endif
356 if (lastupdate == i) {
357 BIO_printf(bio_out, "lastUpdate=");
358 ASN1_TIME_print_ex(bio_out, X509_CRL_get0_lastUpdate(x), dateopt);
359 BIO_printf(bio_out, "\n");
360 }
361 if (nextupdate == i) {
362 BIO_printf(bio_out, "nextUpdate=");
363 if (X509_CRL_get0_nextUpdate(x))
364 ASN1_TIME_print_ex(bio_out, X509_CRL_get0_nextUpdate(x), dateopt);
365 else
366 BIO_printf(bio_out, "NONE");
367 BIO_printf(bio_out, "\n");
368 }
369 if (fingerprint == i) {
370 int j;
371 unsigned int n;
372 unsigned char md[EVP_MAX_MD_SIZE];
373
374 if (!X509_CRL_digest(x, digest, md, &n)) {
375 BIO_printf(bio_err, "out of memory\n");
376 goto end;
377 }
378 BIO_printf(bio_out, "%s Fingerprint=",
379 EVP_MD_get0_name(digest));
380 for (j = 0; j < (int)n; j++) {
381 BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n) ? '\n' : ':');
382 }
383 }
384 }
385 }
386 out = bio_open_default(outfile, 'w', outformat);
387 if (out == NULL)
388 goto end;
389
390 if (text)
391 X509_CRL_print_ex(out, x, get_nameopt());
392
393 if (noout) {
394 ret = 0;
395 goto end;
396 }
397
398 if (outformat == FORMAT_ASN1)
399 i = (int)i2d_X509_CRL_bio(out, x);
400 else
401 i = PEM_write_bio_X509_CRL(out, x);
402 if (!i) {
403 BIO_printf(bio_err, "unable to write CRL\n");
404 goto end;
405 }
406 ret = 0;
407
408 end:
409 if (ret != 0)
410 ERR_print_errors(bio_err);
411 BIO_free_all(out);
412 EVP_MD_free(digest);
413 X509_CRL_free(x);
414 X509_STORE_CTX_free(ctx);
415 X509_STORE_free(store);
416 return ret;
417 }
418