]> git.ipfire.org Git - thirdparty/openssl.git/blame - apps/verify.c
Fix C++ support: set $target{cxx} correctly
[thirdparty/openssl.git] / apps / verify.c
CommitLineData
846e33c7
RS
1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6 3 *
846e33c7
RS
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
d02b48c6
RE
8 */
9
10#include <stdio.h>
11#include <stdlib.h>
12#include <string.h>
13#include "apps.h"
ec577822
BM
14#include <openssl/bio.h>
15#include <openssl/err.h>
16#include <openssl/x509.h>
d4cec6a1 17#include <openssl/x509v3.h>
ec577822 18#include <openssl/pem.h>
d02b48c6 19
6d23cf97 20static int cb(int ok, X509_STORE_CTX *ctx);
cc696296 21static int check(X509_STORE *ctx, const char *file,
0f113f3e 22 STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
a773b52a 23 STACK_OF(X509_CRL) *crls, int show_chain);
0f113f3e 24static int v_verbose = 0, vflags = 0;
d02b48c6 25
7e1b7485
RS
26typedef enum OPTION_choice {
27 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
2b6bcb70
MC
28 OPT_ENGINE, OPT_CAPATH, OPT_CAFILE, OPT_NOCAPATH, OPT_NOCAFILE,
29 OPT_UNTRUSTED, OPT_TRUSTED, OPT_CRLFILE, OPT_CRL_DOWNLOAD, OPT_SHOW_CHAIN,
7e1b7485
RS
30 OPT_V_ENUM,
31 OPT_VERBOSE
32} OPTION_CHOICE;
33
34OPTIONS verify_options[] = {
35 {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"},
36 {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
37 {"help", OPT_HELP, '-', "Display this summary"},
a64ba70d
MC
38 {"verbose", OPT_VERBOSE, '-',
39 "Print extra information about the operations being performed."},
40 {"CApath", OPT_CAPATH, '/', "A directory of trusted certificates"},
41 {"CAfile", OPT_CAFILE, '<', "A file of trusted certificates"},
2b6bcb70
MC
42 {"no-CAfile", OPT_NOCAFILE, '-',
43 "Do not load the default certificates file"},
44 {"no-CApath", OPT_NOCAPATH, '-',
45 "Do not load certificates from the default certificates directory"},
a64ba70d 46 {"untrusted", OPT_UNTRUSTED, '<', "A file of untrusted certificates"},
5b89036c 47 {"trusted", OPT_TRUSTED, '<', "A file of trusted certificates"},
a64ba70d
MC
48 {"CRLfile", OPT_CRLFILE, '<',
49 "File containing one or more CRL's (in PEM format) to load"},
50 {"crl_download", OPT_CRL_DOWNLOAD, '-',
51 "Attempt to download CRL information for this certificate"},
52 {"show_chain", OPT_SHOW_CHAIN, '-',
53 "Display information about the certificate chain"},
9c3bcfa0 54 OPT_V_OPTIONS,
7e1b7485
RS
55#ifndef OPENSSL_NO_ENGINE
56 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
57#endif
7e1b7485
RS
58 {NULL}
59};
667ac4ec 60
7e1b7485 61int verify_main(int argc, char **argv)
0f113f3e 62{
0f113f3e
MC
63 STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
64 STACK_OF(X509_CRL) *crls = NULL;
7e1b7485 65 X509_STORE *store = NULL;
0f113f3e 66 X509_VERIFY_PARAM *vpm = NULL;
cc696296 67 const char *prog, *CApath = NULL, *CAfile = NULL;
2b6bcb70 68 int noCApath = 0, noCAfile = 0;
7e1b7485
RS
69 int vpmtouched = 0, crl_download = 0, show_chain = 0, i = 0, ret = 1;
70 OPTION_CHOICE o;
d02b48c6 71
7e1b7485 72 if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
0f113f3e 73 goto end;
0f113f3e 74
7e1b7485
RS
75 prog = opt_init(argc, argv, verify_options);
76 while ((o = opt_next()) != OPT_EOF) {
77 switch (o) {
78 case OPT_EOF:
79 case OPT_ERR:
80 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
81 goto end;
82 case OPT_HELP:
83 opt_help(verify_options);
84 BIO_printf(bio_err, "Recognized usages:\n");
85 for (i = 0; i < X509_PURPOSE_get_count(); i++) {
86 X509_PURPOSE *ptmp;
87 ptmp = X509_PURPOSE_get0(i);
88 BIO_printf(bio_err, "\t%-10s\t%s\n",
89 X509_PURPOSE_get0_sname(ptmp),
90 X509_PURPOSE_get0_name(ptmp));
91 }
0f113f3e 92
7e1b7485
RS
93 BIO_printf(bio_err, "Recognized verify names:\n");
94 for (i = 0; i < X509_VERIFY_PARAM_get_count(); i++) {
95 const X509_VERIFY_PARAM *vptmp;
96 vptmp = X509_VERIFY_PARAM_get0(i);
97 BIO_printf(bio_err, "\t%-10s\n",
98 X509_VERIFY_PARAM_get0_name(vptmp));
0f113f3e 99 }
7e1b7485
RS
100 ret = 0;
101 goto end;
102 case OPT_V_CASES:
103 if (!opt_verify(o, vpm))
0f113f3e 104 goto end;
7e1b7485
RS
105 vpmtouched++;
106 break;
107 case OPT_CAPATH:
108 CApath = opt_arg();
109 break;
110 case OPT_CAFILE:
111 CAfile = opt_arg();
112 break;
2b6bcb70
MC
113 case OPT_NOCAPATH:
114 noCApath = 1;
115 break;
116 case OPT_NOCAFILE:
117 noCAfile = 1;
118 break;
7e1b7485 119 case OPT_UNTRUSTED:
feb2f53e 120 /* Zero or more times */
a773b52a 121 if (!load_certs(opt_arg(), &untrusted, FORMAT_PEM, NULL,
feb2f53e
VD
122 "untrusted certificates"))
123 goto end;
7e1b7485
RS
124 break;
125 case OPT_TRUSTED:
feb2f53e
VD
126 /* Zero or more times */
127 noCAfile = 1;
128 noCApath = 1;
a773b52a 129 if (!load_certs(opt_arg(), &trusted, FORMAT_PEM, NULL,
feb2f53e
VD
130 "trusted certificates"))
131 goto end;
7e1b7485
RS
132 break;
133 case OPT_CRLFILE:
feb2f53e 134 /* Zero or more times */
a773b52a 135 if (!load_crls(opt_arg(), &crls, FORMAT_PEM, NULL,
feb2f53e
VD
136 "other CRLs"))
137 goto end;
7e1b7485
RS
138 break;
139 case OPT_CRL_DOWNLOAD:
140 crl_download = 1;
0f113f3e 141 break;
a773b52a
RS
142 case OPT_ENGINE:
143 if (setup_engine(opt_arg(), 0) == NULL) {
144 /* Failure message already displayed */
145 goto end;
146 }
147 break;
7e1b7485
RS
148 case OPT_SHOW_CHAIN:
149 show_chain = 1;
150 break;
7e1b7485
RS
151 case OPT_VERBOSE:
152 v_verbose = 1;
153 break;
154 }
0f113f3e 155 }
7e1b7485
RS
156 argc = opt_num_rest();
157 argv = opt_rest();
feb2f53e 158 if (trusted != NULL && (CAfile || CApath)) {
5b89036c
RS
159 BIO_printf(bio_err,
160 "%s: Cannot use -trusted with -CAfile or -CApath\n",
161 prog);
162 goto end;
163 }
d02b48c6 164
2b6bcb70 165 if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
7e1b7485
RS
166 goto end;
167 X509_STORE_set_verify_cb(store, cb);
5270e702 168
7e1b7485
RS
169 if (vpmtouched)
170 X509_STORE_set1_param(store, vpm);
0f113f3e
MC
171
172 ERR_clear_error();
173
0f113f3e 174 if (crl_download)
7e1b7485 175 store_setup_crl_download(store);
0f113f3e
MC
176
177 ret = 0;
178 if (argc < 1) {
a773b52a 179 if (check(store, NULL, untrusted, trusted, crls, show_chain) != 1)
0f113f3e
MC
180 ret = -1;
181 } else {
182 for (i = 0; i < argc; i++)
a773b52a 183 if (check(store, argv[i], untrusted, trusted, crls,
7e1b7485 184 show_chain) != 1)
0f113f3e
MC
185 ret = -1;
186 }
187
188 end:
222561fe
RS
189 X509_VERIFY_PARAM_free(vpm);
190 X509_STORE_free(store);
0f113f3e
MC
191 sk_X509_pop_free(untrusted, X509_free);
192 sk_X509_pop_free(trusted, X509_free);
193 sk_X509_CRL_pop_free(crls, X509_CRL_free);
7e1b7485 194 return (ret < 0 ? 2 : ret);
0f113f3e 195}
d02b48c6 196
cc696296 197static int check(X509_STORE *ctx, const char *file,
0f113f3e 198 STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
a773b52a 199 STACK_OF(X509_CRL) *crls, int show_chain)
0f113f3e
MC
200{
201 X509 *x = NULL;
202 int i = 0, ret = 0;
203 X509_STORE_CTX *csc;
204 STACK_OF(X509) *chain = NULL;
7f3f41d8 205 int num_untrusted;
0f113f3e 206
a773b52a 207 x = load_cert(file, FORMAT_PEM, "certificate file");
0f113f3e
MC
208 if (x == NULL)
209 goto end;
0f113f3e
MC
210
211 csc = X509_STORE_CTX_new();
212 if (csc == NULL) {
63c6aa6b
VD
213 printf("error %s: X.509 store context allocation failed\n",
214 (file == NULL) ? "stdin" : file);
0f113f3e
MC
215 goto end;
216 }
a392ef20 217
0f113f3e
MC
218 X509_STORE_set_flags(ctx, vflags);
219 if (!X509_STORE_CTX_init(csc, ctx, x, uchain)) {
63c6aa6b
VD
220 printf("error %s: X.509 store context initialization failed\n",
221 (file == NULL) ? "stdin" : file);
0f113f3e
MC
222 goto end;
223 }
224 if (tchain)
f0e0fd51 225 X509_STORE_CTX_set0_trusted_stack(csc, tchain);
0f113f3e
MC
226 if (crls)
227 X509_STORE_CTX_set0_crls(csc, crls);
228 i = X509_verify_cert(csc);
d9e309a6 229 if (i > 0 && X509_STORE_CTX_get_error(csc) == X509_V_OK) {
63c6aa6b 230 printf("%s: OK\n", (file == NULL) ? "stdin" : file);
480405e4 231 ret = 1;
63c6aa6b
VD
232 if (show_chain) {
233 int j;
bb484020 234
63c6aa6b
VD
235 chain = X509_STORE_CTX_get1_chain(csc);
236 num_untrusted = X509_STORE_CTX_get_num_untrusted(csc);
237 printf("Chain:\n");
238 for (j = 0; j < sk_X509_num(chain); j++) {
239 X509 *cert = sk_X509_value(chain, j);
240 printf("depth=%d: ", j);
241 X509_NAME_print_ex_fp(stdout,
242 X509_get_subject_name(cert),
243 0, XN_FLAG_ONELINE);
244 if (j < num_untrusted)
245 printf(" (untrusted)");
246 printf("\n");
247 }
248 sk_X509_pop_free(chain, X509_free);
249 }
250 } else {
251 printf("error %s: verification failed\n", (file == NULL) ? "stdin" : file);
7f3f41d8 252 }
0f113f3e
MC
253 X509_STORE_CTX_free(csc);
254
0f113f3e 255 end:
480405e4 256 if (i <= 0)
63c6aa6b 257 ERR_print_errors(bio_err);
222561fe 258 X509_free(x);
0f113f3e 259
480405e4 260 return ret;
0f113f3e 261}
d02b48c6 262
6d23cf97 263static int cb(int ok, X509_STORE_CTX *ctx)
0f113f3e
MC
264{
265 int cert_error = X509_STORE_CTX_get_error(ctx);
266 X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);
267
268 if (!ok) {
269 if (current_cert) {
ecf3a1fb
RS
270 X509_NAME_print_ex(bio_err,
271 X509_get_subject_name(current_cert),
272 0, XN_FLAG_ONELINE);
273 BIO_printf(bio_err, "\n");
0f113f3e 274 }
63c6aa6b
VD
275 BIO_printf(bio_err, "%serror %d at %d depth lookup: %s\n",
276 X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path] " : "",
0f113f3e
MC
277 cert_error,
278 X509_STORE_CTX_get_error_depth(ctx),
279 X509_verify_cert_error_string(cert_error));
280 switch (cert_error) {
281 case X509_V_ERR_NO_EXPLICIT_POLICY:
ecf3a1fb 282 policies_print(ctx);
0f113f3e
MC
283 case X509_V_ERR_CERT_HAS_EXPIRED:
284
285 /*
286 * since we are just checking the certificates, it is ok if they
287 * are self signed. But we should still warn the user.
288 */
0f113f3e
MC
289 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
290 /* Continue after extension errors too */
291 case X509_V_ERR_INVALID_CA:
292 case X509_V_ERR_INVALID_NON_CA:
293 case X509_V_ERR_PATH_LENGTH_EXCEEDED:
294 case X509_V_ERR_INVALID_PURPOSE:
295 case X509_V_ERR_CRL_HAS_EXPIRED:
296 case X509_V_ERR_CRL_NOT_YET_VALID:
297 case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
298 ok = 1;
0f113f3e
MC
299 }
300
301 return ok;
302
303 }
304 if (cert_error == X509_V_OK && ok == 2)
ecf3a1fb 305 policies_print(ctx);
0f113f3e
MC
306 if (!v_verbose)
307 ERR_clear_error();
308 return (ok);
309}