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58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
2 | * All rights reserved. |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
d02b48c6 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
d02b48c6 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
d02b48c6 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
d02b48c6 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
59 | #include <stdlib.h> | |
60 | #include <string.h> | |
61 | #include "apps.h" | |
ec577822 BM |
62 | #include <openssl/bio.h> |
63 | #include <openssl/err.h> | |
64 | #include <openssl/x509.h> | |
d4cec6a1 | 65 | #include <openssl/x509v3.h> |
ec577822 | 66 | #include <openssl/pem.h> |
d02b48c6 | 67 | |
6d23cf97 | 68 | static int cb(int ok, X509_STORE_CTX *ctx); |
245d2ee3 | 69 | static int check(X509_STORE *ctx, char *file, |
0f113f3e | 70 | STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, |
a773b52a | 71 | STACK_OF(X509_CRL) *crls, int show_chain); |
0f113f3e | 72 | static int v_verbose = 0, vflags = 0; |
d02b48c6 | 73 | |
7e1b7485 RS |
74 | typedef enum OPTION_choice { |
75 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
2b6bcb70 MC |
76 | OPT_ENGINE, OPT_CAPATH, OPT_CAFILE, OPT_NOCAPATH, OPT_NOCAFILE, |
77 | OPT_UNTRUSTED, OPT_TRUSTED, OPT_CRLFILE, OPT_CRL_DOWNLOAD, OPT_SHOW_CHAIN, | |
7e1b7485 RS |
78 | OPT_V_ENUM, |
79 | OPT_VERBOSE | |
80 | } OPTION_CHOICE; | |
81 | ||
82 | OPTIONS verify_options[] = { | |
83 | {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"}, | |
84 | {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, | |
85 | {"help", OPT_HELP, '-', "Display this summary"}, | |
a64ba70d MC |
86 | {"verbose", OPT_VERBOSE, '-', |
87 | "Print extra information about the operations being performed."}, | |
88 | {"CApath", OPT_CAPATH, '/', "A directory of trusted certificates"}, | |
89 | {"CAfile", OPT_CAFILE, '<', "A file of trusted certificates"}, | |
2b6bcb70 MC |
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"}, | |
a64ba70d | 94 | {"untrusted", OPT_UNTRUSTED, '<', "A file of untrusted certificates"}, |
5b89036c | 95 | {"trusted", OPT_TRUSTED, '<', "A file of trusted certificates"}, |
a64ba70d MC |
96 | {"CRLfile", OPT_CRLFILE, '<', |
97 | "File containing one or more CRL's (in PEM format) to load"}, | |
98 | {"crl_download", OPT_CRL_DOWNLOAD, '-', | |
99 | "Attempt to download CRL information for this certificate"}, | |
100 | {"show_chain", OPT_SHOW_CHAIN, '-', | |
101 | "Display information about the certificate chain"}, | |
9c3bcfa0 | 102 | OPT_V_OPTIONS, |
7e1b7485 RS |
103 | #ifndef OPENSSL_NO_ENGINE |
104 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
105 | #endif | |
7e1b7485 RS |
106 | {NULL} |
107 | }; | |
667ac4ec | 108 | |
7e1b7485 | 109 | int verify_main(int argc, char **argv) |
0f113f3e | 110 | { |
0f113f3e MC |
111 | STACK_OF(X509) *untrusted = NULL, *trusted = NULL; |
112 | STACK_OF(X509_CRL) *crls = NULL; | |
7e1b7485 | 113 | X509_STORE *store = NULL; |
0f113f3e | 114 | X509_VERIFY_PARAM *vpm = NULL; |
333b070e | 115 | char *prog, *CApath = NULL, *CAfile = NULL; |
2b6bcb70 | 116 | int noCApath = 0, noCAfile = 0; |
7e1b7485 RS |
117 | int vpmtouched = 0, crl_download = 0, show_chain = 0, i = 0, ret = 1; |
118 | OPTION_CHOICE o; | |
d02b48c6 | 119 | |
7e1b7485 | 120 | if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
0f113f3e | 121 | goto end; |
0f113f3e | 122 | |
7e1b7485 RS |
123 | prog = opt_init(argc, argv, verify_options); |
124 | while ((o = opt_next()) != OPT_EOF) { | |
125 | switch (o) { | |
126 | case OPT_EOF: | |
127 | case OPT_ERR: | |
128 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
129 | goto end; | |
130 | case OPT_HELP: | |
131 | opt_help(verify_options); | |
132 | BIO_printf(bio_err, "Recognized usages:\n"); | |
133 | for (i = 0; i < X509_PURPOSE_get_count(); i++) { | |
134 | X509_PURPOSE *ptmp; | |
135 | ptmp = X509_PURPOSE_get0(i); | |
136 | BIO_printf(bio_err, "\t%-10s\t%s\n", | |
137 | X509_PURPOSE_get0_sname(ptmp), | |
138 | X509_PURPOSE_get0_name(ptmp)); | |
139 | } | |
0f113f3e | 140 | |
7e1b7485 RS |
141 | BIO_printf(bio_err, "Recognized verify names:\n"); |
142 | for (i = 0; i < X509_VERIFY_PARAM_get_count(); i++) { | |
143 | const X509_VERIFY_PARAM *vptmp; | |
144 | vptmp = X509_VERIFY_PARAM_get0(i); | |
145 | BIO_printf(bio_err, "\t%-10s\n", | |
146 | X509_VERIFY_PARAM_get0_name(vptmp)); | |
0f113f3e | 147 | } |
7e1b7485 RS |
148 | ret = 0; |
149 | goto end; | |
150 | case OPT_V_CASES: | |
151 | if (!opt_verify(o, vpm)) | |
0f113f3e | 152 | goto end; |
7e1b7485 RS |
153 | vpmtouched++; |
154 | break; | |
155 | case OPT_CAPATH: | |
156 | CApath = opt_arg(); | |
157 | break; | |
158 | case OPT_CAFILE: | |
159 | CAfile = opt_arg(); | |
160 | break; | |
2b6bcb70 MC |
161 | case OPT_NOCAPATH: |
162 | noCApath = 1; | |
163 | break; | |
164 | case OPT_NOCAFILE: | |
165 | noCAfile = 1; | |
166 | break; | |
7e1b7485 | 167 | case OPT_UNTRUSTED: |
feb2f53e | 168 | /* Zero or more times */ |
a773b52a | 169 | if (!load_certs(opt_arg(), &untrusted, FORMAT_PEM, NULL, |
feb2f53e VD |
170 | "untrusted certificates")) |
171 | goto end; | |
7e1b7485 RS |
172 | break; |
173 | case OPT_TRUSTED: | |
feb2f53e VD |
174 | /* Zero or more times */ |
175 | noCAfile = 1; | |
176 | noCApath = 1; | |
a773b52a | 177 | if (!load_certs(opt_arg(), &trusted, FORMAT_PEM, NULL, |
feb2f53e VD |
178 | "trusted certificates")) |
179 | goto end; | |
7e1b7485 RS |
180 | break; |
181 | case OPT_CRLFILE: | |
feb2f53e | 182 | /* Zero or more times */ |
a773b52a | 183 | if (!load_crls(opt_arg(), &crls, FORMAT_PEM, NULL, |
feb2f53e VD |
184 | "other CRLs")) |
185 | goto end; | |
7e1b7485 RS |
186 | break; |
187 | case OPT_CRL_DOWNLOAD: | |
188 | crl_download = 1; | |
0f113f3e | 189 | break; |
a773b52a RS |
190 | case OPT_ENGINE: |
191 | if (setup_engine(opt_arg(), 0) == NULL) { | |
192 | /* Failure message already displayed */ | |
193 | goto end; | |
194 | } | |
195 | break; | |
7e1b7485 RS |
196 | case OPT_SHOW_CHAIN: |
197 | show_chain = 1; | |
198 | break; | |
7e1b7485 RS |
199 | case OPT_VERBOSE: |
200 | v_verbose = 1; | |
201 | break; | |
202 | } | |
0f113f3e | 203 | } |
7e1b7485 RS |
204 | argc = opt_num_rest(); |
205 | argv = opt_rest(); | |
feb2f53e | 206 | if (trusted != NULL && (CAfile || CApath)) { |
5b89036c RS |
207 | BIO_printf(bio_err, |
208 | "%s: Cannot use -trusted with -CAfile or -CApath\n", | |
209 | prog); | |
210 | goto end; | |
211 | } | |
d02b48c6 | 212 | |
2b6bcb70 | 213 | if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL) |
7e1b7485 RS |
214 | goto end; |
215 | X509_STORE_set_verify_cb(store, cb); | |
5270e702 | 216 | |
7e1b7485 RS |
217 | if (vpmtouched) |
218 | X509_STORE_set1_param(store, vpm); | |
0f113f3e MC |
219 | |
220 | ERR_clear_error(); | |
221 | ||
0f113f3e | 222 | if (crl_download) |
7e1b7485 | 223 | store_setup_crl_download(store); |
0f113f3e MC |
224 | |
225 | ret = 0; | |
226 | if (argc < 1) { | |
a773b52a | 227 | if (check(store, NULL, untrusted, trusted, crls, show_chain) != 1) |
0f113f3e MC |
228 | ret = -1; |
229 | } else { | |
230 | for (i = 0; i < argc; i++) | |
a773b52a | 231 | if (check(store, argv[i], untrusted, trusted, crls, |
7e1b7485 | 232 | show_chain) != 1) |
0f113f3e MC |
233 | ret = -1; |
234 | } | |
235 | ||
236 | end: | |
222561fe RS |
237 | X509_VERIFY_PARAM_free(vpm); |
238 | X509_STORE_free(store); | |
0f113f3e MC |
239 | sk_X509_pop_free(untrusted, X509_free); |
240 | sk_X509_pop_free(trusted, X509_free); | |
241 | sk_X509_CRL_pop_free(crls, X509_CRL_free); | |
7e1b7485 | 242 | return (ret < 0 ? 2 : ret); |
0f113f3e | 243 | } |
d02b48c6 | 244 | |
245d2ee3 | 245 | static int check(X509_STORE *ctx, char *file, |
0f113f3e | 246 | STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, |
a773b52a | 247 | STACK_OF(X509_CRL) *crls, int show_chain) |
0f113f3e MC |
248 | { |
249 | X509 *x = NULL; | |
250 | int i = 0, ret = 0; | |
251 | X509_STORE_CTX *csc; | |
252 | STACK_OF(X509) *chain = NULL; | |
7f3f41d8 | 253 | int num_untrusted; |
0f113f3e | 254 | |
a773b52a | 255 | x = load_cert(file, FORMAT_PEM, "certificate file"); |
0f113f3e MC |
256 | if (x == NULL) |
257 | goto end; | |
0f113f3e MC |
258 | |
259 | csc = X509_STORE_CTX_new(); | |
260 | if (csc == NULL) { | |
63c6aa6b VD |
261 | printf("error %s: X.509 store context allocation failed\n", |
262 | (file == NULL) ? "stdin" : file); | |
0f113f3e MC |
263 | goto end; |
264 | } | |
265 | X509_STORE_set_flags(ctx, vflags); | |
266 | if (!X509_STORE_CTX_init(csc, ctx, x, uchain)) { | |
63c6aa6b VD |
267 | printf("error %s: X.509 store context initialization failed\n", |
268 | (file == NULL) ? "stdin" : file); | |
0f113f3e MC |
269 | goto end; |
270 | } | |
271 | if (tchain) | |
272 | X509_STORE_CTX_trusted_stack(csc, tchain); | |
273 | if (crls) | |
274 | X509_STORE_CTX_set0_crls(csc, crls); | |
275 | i = X509_verify_cert(csc); | |
d9e309a6 | 276 | if (i > 0 && X509_STORE_CTX_get_error(csc) == X509_V_OK) { |
63c6aa6b | 277 | printf("%s: OK\n", (file == NULL) ? "stdin" : file); |
480405e4 | 278 | ret = 1; |
63c6aa6b VD |
279 | if (show_chain) { |
280 | int j; | |
bb484020 | 281 | |
63c6aa6b VD |
282 | chain = X509_STORE_CTX_get1_chain(csc); |
283 | num_untrusted = X509_STORE_CTX_get_num_untrusted(csc); | |
284 | printf("Chain:\n"); | |
285 | for (j = 0; j < sk_X509_num(chain); j++) { | |
286 | X509 *cert = sk_X509_value(chain, j); | |
287 | printf("depth=%d: ", j); | |
288 | X509_NAME_print_ex_fp(stdout, | |
289 | X509_get_subject_name(cert), | |
290 | 0, XN_FLAG_ONELINE); | |
291 | if (j < num_untrusted) | |
292 | printf(" (untrusted)"); | |
293 | printf("\n"); | |
294 | } | |
295 | sk_X509_pop_free(chain, X509_free); | |
296 | } | |
297 | } else { | |
298 | printf("error %s: verification failed\n", (file == NULL) ? "stdin" : file); | |
7f3f41d8 | 299 | } |
0f113f3e MC |
300 | X509_STORE_CTX_free(csc); |
301 | ||
0f113f3e | 302 | end: |
480405e4 | 303 | if (i <= 0) |
63c6aa6b | 304 | ERR_print_errors(bio_err); |
222561fe | 305 | X509_free(x); |
0f113f3e | 306 | |
480405e4 | 307 | return ret; |
0f113f3e | 308 | } |
d02b48c6 | 309 | |
6d23cf97 | 310 | static int cb(int ok, X509_STORE_CTX *ctx) |
0f113f3e MC |
311 | { |
312 | int cert_error = X509_STORE_CTX_get_error(ctx); | |
313 | X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx); | |
314 | ||
315 | if (!ok) { | |
316 | if (current_cert) { | |
ecf3a1fb RS |
317 | X509_NAME_print_ex(bio_err, |
318 | X509_get_subject_name(current_cert), | |
319 | 0, XN_FLAG_ONELINE); | |
320 | BIO_printf(bio_err, "\n"); | |
0f113f3e | 321 | } |
63c6aa6b VD |
322 | BIO_printf(bio_err, "%serror %d at %d depth lookup: %s\n", |
323 | X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path] " : "", | |
0f113f3e MC |
324 | cert_error, |
325 | X509_STORE_CTX_get_error_depth(ctx), | |
326 | X509_verify_cert_error_string(cert_error)); | |
327 | switch (cert_error) { | |
328 | case X509_V_ERR_NO_EXPLICIT_POLICY: | |
ecf3a1fb | 329 | policies_print(ctx); |
0f113f3e MC |
330 | case X509_V_ERR_CERT_HAS_EXPIRED: |
331 | ||
332 | /* | |
333 | * since we are just checking the certificates, it is ok if they | |
334 | * are self signed. But we should still warn the user. | |
335 | */ | |
0f113f3e MC |
336 | case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: |
337 | /* Continue after extension errors too */ | |
338 | case X509_V_ERR_INVALID_CA: | |
339 | case X509_V_ERR_INVALID_NON_CA: | |
340 | case X509_V_ERR_PATH_LENGTH_EXCEEDED: | |
341 | case X509_V_ERR_INVALID_PURPOSE: | |
342 | case X509_V_ERR_CRL_HAS_EXPIRED: | |
343 | case X509_V_ERR_CRL_NOT_YET_VALID: | |
344 | case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION: | |
345 | ok = 1; | |
0f113f3e MC |
346 | } |
347 | ||
348 | return ok; | |
349 | ||
350 | } | |
351 | if (cert_error == X509_V_OK && ok == 2) | |
ecf3a1fb | 352 | policies_print(ctx); |
0f113f3e MC |
353 | if (!v_verbose) |
354 | ERR_clear_error(); | |
355 | return (ok); | |
356 | } |