1 /*
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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_ERR = -1, OPT_EOF = 0, OPT_HELP,
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,
26 OPT_NOCAPATH, OPT_NOCAFILE, OPT_VERIFY, OPT_TEXT, OPT_HASH, OPT_HASH_OLD,
27 OPT_NOOUT, OPT_NAMEOPT, OPT_MD
28 } OPTION_CHOICE;
29
30 const OPTIONS crl_options[] = {
31 {"help", OPT_HELP, '-', "Display this summary"},
32 {"inform", OPT_INFORM, 'F', "Input format; default PEM"},
33 {"in", OPT_IN, '<', "Input file - default stdin"},
34 {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"},
35 {"out", OPT_OUT, '>', "output file - default stdout"},
36 {"keyform", OPT_KEYFORM, 'F', "Private key file format (PEM or ENGINE)"},
37 {"key", OPT_KEY, '<', "CRL signing Private key to use"},
38 {"issuer", OPT_ISSUER, '-', "Print issuer DN"},
39 {"lastupdate", OPT_LASTUPDATE, '-', "Set lastUpdate field"},
40 {"nextupdate", OPT_NEXTUPDATE, '-', "Set nextUpdate field"},
41 {"noout", OPT_NOOUT, '-', "No CRL output"},
42 {"fingerprint", OPT_FINGERPRINT, '-', "Print the crl fingerprint"},
43 {"crlnumber", OPT_CRLNUMBER, '-', "Print CRL number"},
44 {"badsig", OPT_BADSIG, '-', "Corrupt last byte of loaded CRL signature (for test)" },
45 {"gendelta", OPT_GENDELTA, '<', "Other CRL to compare/diff to the Input one"},
46 {"CApath", OPT_CAPATH, '/', "Verify CRL using certificates in dir"},
47 {"CAfile", OPT_CAFILE, '<', "Verify CRL using certificates in file name"},
48 {"no-CAfile", OPT_NOCAFILE, '-',
49 "Do not load the default certificates file"},
50 {"no-CApath", OPT_NOCAPATH, '-',
51 "Do not load certificates from the default certificates directory"},
52 {"verify", OPT_VERIFY, '-', "Verify CRL signature"},
53 {"text", OPT_TEXT, '-', "Print out a text format version"},
54 {"hash", OPT_HASH, '-', "Print hash value"},
55 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
56 {"", OPT_MD, '-', "Any supported digest"},
57 #ifndef OPENSSL_NO_MD5
58 {"hash_old", OPT_HASH_OLD, '-', "Print old-style (MD5) hash value"},
59 #endif
60 {NULL}
61 };
62
crl_main(int argc,char ** argv)63 int crl_main(int argc, char **argv)
64 {
65 X509_CRL *x = NULL;
66 BIO *out = NULL;
67 X509_STORE *store = NULL;
68 X509_STORE_CTX *ctx = NULL;
69 X509_LOOKUP *lookup = NULL;
70 X509_OBJECT *xobj = NULL;
71 EVP_PKEY *pkey;
72 const EVP_MD *digest = EVP_sha1();
73 char *infile = NULL, *outfile = NULL, *crldiff = NULL, *keyfile = NULL;
74 const char *CAfile = NULL, *CApath = NULL, *prog;
75 OPTION_CHOICE o;
76 int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout = 0;
77 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
78 int ret = 1, num = 0, badsig = 0, fingerprint = 0, crlnumber = 0;
79 int text = 0, do_ver = 0, noCAfile = 0, noCApath = 0;
80 int i;
81 #ifndef OPENSSL_NO_MD5
82 int hash_old = 0;
83 #endif
84
85 prog = opt_init(argc, argv, crl_options);
86 while ((o = opt_next()) != OPT_EOF) {
87 switch (o) {
88 case OPT_EOF:
89 case OPT_ERR:
90 opthelp:
91 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
92 goto end;
93 case OPT_HELP:
94 opt_help(crl_options);
95 ret = 0;
96 goto end;
97 case OPT_INFORM:
98 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
99 goto opthelp;
100 break;
101 case OPT_IN:
102 infile = opt_arg();
103 break;
104 case OPT_OUTFORM:
105 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
106 goto opthelp;
107 break;
108 case OPT_OUT:
109 outfile = opt_arg();
110 break;
111 case OPT_KEYFORM:
112 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
113 goto opthelp;
114 break;
115 case OPT_KEY:
116 keyfile = opt_arg();
117 break;
118 case OPT_GENDELTA:
119 crldiff = opt_arg();
120 break;
121 case OPT_CAPATH:
122 CApath = opt_arg();
123 do_ver = 1;
124 break;
125 case OPT_CAFILE:
126 CAfile = opt_arg();
127 do_ver = 1;
128 break;
129 case OPT_NOCAPATH:
130 noCApath = 1;
131 break;
132 case OPT_NOCAFILE:
133 noCAfile = 1;
134 break;
135 case OPT_HASH_OLD:
136 #ifndef OPENSSL_NO_MD5
137 hash_old = ++num;
138 #endif
139 break;
140 case OPT_VERIFY:
141 do_ver = 1;
142 break;
143 case OPT_TEXT:
144 text = 1;
145 break;
146 case OPT_HASH:
147 hash = ++num;
148 break;
149 case OPT_ISSUER:
150 issuer = ++num;
151 break;
152 case OPT_LASTUPDATE:
153 lastupdate = ++num;
154 break;
155 case OPT_NEXTUPDATE:
156 nextupdate = ++num;
157 break;
158 case OPT_NOOUT:
159 noout = ++num;
160 break;
161 case OPT_FINGERPRINT:
162 fingerprint = ++num;
163 break;
164 case OPT_CRLNUMBER:
165 crlnumber = ++num;
166 break;
167 case OPT_BADSIG:
168 badsig = 1;
169 break;
170 case OPT_NAMEOPT:
171 if (!set_nameopt(opt_arg()))
172 goto opthelp;
173 break;
174 case OPT_MD:
175 if (!opt_md(opt_unknown(), &digest))
176 goto opthelp;
177 }
178 }
179 argc = opt_num_rest();
180 if (argc != 0)
181 goto opthelp;
182
183 x = load_crl(infile, informat);
184 if (x == NULL)
185 goto end;
186
187 if (do_ver) {
188 if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
189 goto end;
190 lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
191 if (lookup == NULL)
192 goto end;
193 ctx = X509_STORE_CTX_new();
194 if (ctx == NULL || !X509_STORE_CTX_init(ctx, store, NULL, NULL)) {
195 BIO_printf(bio_err, "Error initialising X509 store\n");
196 goto end;
197 }
198
199 xobj = X509_STORE_CTX_get_obj_by_subject(ctx, X509_LU_X509,
200 X509_CRL_get_issuer(x));
201 if (xobj == NULL) {
202 BIO_printf(bio_err, "Error getting CRL issuer certificate\n");
203 goto end;
204 }
205 pkey = X509_get_pubkey(X509_OBJECT_get0_X509(xobj));
206 X509_OBJECT_free(xobj);
207 if (!pkey) {
208 BIO_printf(bio_err, "Error getting CRL issuer public key\n");
209 goto end;
210 }
211 i = X509_CRL_verify(x, pkey);
212 EVP_PKEY_free(pkey);
213 if (i < 0)
214 goto end;
215 if (i == 0)
216 BIO_printf(bio_err, "verify failure\n");
217 else
218 BIO_printf(bio_err, "verify OK\n");
219 }
220
221 if (crldiff) {
222 X509_CRL *newcrl, *delta;
223 if (!keyfile) {
224 BIO_puts(bio_err, "Missing CRL signing key\n");
225 goto end;
226 }
227 newcrl = load_crl(crldiff, informat);
228 if (!newcrl)
229 goto end;
230 pkey = load_key(keyfile, keyformat, 0, NULL, NULL, "CRL signing key");
231 if (!pkey) {
232 X509_CRL_free(newcrl);
233 goto end;
234 }
235 delta = X509_CRL_diff(x, newcrl, pkey, digest, 0);
236 X509_CRL_free(newcrl);
237 EVP_PKEY_free(pkey);
238 if (delta) {
239 X509_CRL_free(x);
240 x = delta;
241 } else {
242 BIO_puts(bio_err, "Error creating delta CRL\n");
243 goto end;
244 }
245 }
246
247 if (badsig) {
248 const ASN1_BIT_STRING *sig;
249
250 X509_CRL_get0_signature(x, &sig, NULL);
251 corrupt_signature(sig);
252 }
253
254 if (num) {
255 for (i = 1; i <= num; i++) {
256 if (issuer == i) {
257 print_name(bio_out, "issuer=", X509_CRL_get_issuer(x),
258 get_nameopt());
259 }
260 if (crlnumber == i) {
261 ASN1_INTEGER *crlnum;
262 crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL);
263 BIO_printf(bio_out, "crlNumber=");
264 if (crlnum) {
265 i2a_ASN1_INTEGER(bio_out, crlnum);
266 ASN1_INTEGER_free(crlnum);
267 } else
268 BIO_puts(bio_out, "<NONE>");
269 BIO_printf(bio_out, "\n");
270 }
271 if (hash == i) {
272 BIO_printf(bio_out, "%08lx\n",
273 X509_NAME_hash(X509_CRL_get_issuer(x)));
274 }
275 #ifndef OPENSSL_NO_MD5
276 if (hash_old == i) {
277 BIO_printf(bio_out, "%08lx\n",
278 X509_NAME_hash_old(X509_CRL_get_issuer(x)));
279 }
280 #endif
281 if (lastupdate == i) {
282 BIO_printf(bio_out, "lastUpdate=");
283 ASN1_TIME_print(bio_out, X509_CRL_get0_lastUpdate(x));
284 BIO_printf(bio_out, "\n");
285 }
286 if (nextupdate == i) {
287 BIO_printf(bio_out, "nextUpdate=");
288 if (X509_CRL_get0_nextUpdate(x))
289 ASN1_TIME_print(bio_out, X509_CRL_get0_nextUpdate(x));
290 else
291 BIO_printf(bio_out, "NONE");
292 BIO_printf(bio_out, "\n");
293 }
294 if (fingerprint == i) {
295 int j;
296 unsigned int n;
297 unsigned char md[EVP_MAX_MD_SIZE];
298
299 if (!X509_CRL_digest(x, digest, md, &n)) {
300 BIO_printf(bio_err, "out of memory\n");
301 goto end;
302 }
303 BIO_printf(bio_out, "%s Fingerprint=",
304 OBJ_nid2sn(EVP_MD_type(digest)));
305 for (j = 0; j < (int)n; j++) {
306 BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n)
307 ? '\n' : ':');
308 }
309 }
310 }
311 }
312 out = bio_open_default(outfile, 'w', outformat);
313 if (out == NULL)
314 goto end;
315
316 if (text)
317 X509_CRL_print_ex(out, x, get_nameopt());
318
319 if (noout) {
320 ret = 0;
321 goto end;
322 }
323
324 if (outformat == FORMAT_ASN1)
325 i = (int)i2d_X509_CRL_bio(out, x);
326 else
327 i = PEM_write_bio_X509_CRL(out, x);
328 if (!i) {
329 BIO_printf(bio_err, "unable to write CRL\n");
330 goto end;
331 }
332 ret = 0;
333
334 end:
335 if (ret != 0)
336 ERR_print_errors(bio_err);
337 BIO_free_all(out);
338 X509_CRL_free(x);
339 X509_STORE_CTX_free(ctx);
340 X509_STORE_free(store);
341 return ret;
342 }
343