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