2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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
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>
21 static int cb(int ok
, X509_STORE_CTX
*ctx
);
22 static int check(X509_STORE
*ctx
, const char *file
,
23 STACK_OF(X509
) *uchain
, STACK_OF(X509
) *tchain
,
24 STACK_OF(X509_CRL
) *crls
, int show_chain
);
25 static int v_verbose
= 0, vflags
= 0;
27 typedef enum OPTION_choice
{
28 OPT_ERR
= -1, OPT_EOF
= 0, OPT_HELP
,
29 OPT_ENGINE
, OPT_CAPATH
, OPT_CAFILE
, OPT_NOCAPATH
, OPT_NOCAFILE
,
30 OPT_UNTRUSTED
, OPT_TRUSTED
, OPT_CRLFILE
, OPT_CRL_DOWNLOAD
, OPT_SHOW_CHAIN
,
31 OPT_V_ENUM
, OPT_NAMEOPT
,
35 const OPTIONS verify_options
[] = {
36 {OPT_HELP_STR
, 1, '-', "Usage: %s [options] cert.pem...\n"},
37 {OPT_HELP_STR
, 1, '-', "Valid options are:\n"},
38 {"help", OPT_HELP
, '-', "Display this summary"},
39 {"verbose", OPT_VERBOSE
, '-',
40 "Print extra information about the operations being performed."},
41 {"CApath", OPT_CAPATH
, '/', "A directory of trusted certificates"},
42 {"CAfile", OPT_CAFILE
, '<', "A file of trusted certificates"},
43 {"no-CAfile", OPT_NOCAFILE
, '-',
44 "Do not load the default certificates file"},
45 {"no-CApath", OPT_NOCAPATH
, '-',
46 "Do not load certificates from the default certificates directory"},
47 {"untrusted", OPT_UNTRUSTED
, '<', "A file of untrusted certificates"},
48 {"trusted", OPT_TRUSTED
, '<', "A file of trusted certificates"},
49 {"CRLfile", OPT_CRLFILE
, '<',
50 "File containing one or more CRL's (in PEM format) to load"},
51 {"crl_download", OPT_CRL_DOWNLOAD
, '-',
52 "Attempt to download CRL information for this certificate"},
53 {"show_chain", OPT_SHOW_CHAIN
, '-',
54 "Display information about the certificate chain"},
55 {"nameopt", OPT_NAMEOPT
, 's', "Various certificate name options"},
57 #ifndef OPENSSL_NO_ENGINE
58 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
63 int verify_main(int argc
, char **argv
)
66 STACK_OF(X509
) *untrusted
= NULL
, *trusted
= NULL
;
67 STACK_OF(X509_CRL
) *crls
= NULL
;
68 X509_STORE
*store
= NULL
;
69 X509_VERIFY_PARAM
*vpm
= NULL
;
70 const char *prog
, *CApath
= NULL
, *CAfile
= NULL
;
71 int noCApath
= 0, noCAfile
= 0;
72 int vpmtouched
= 0, crl_download
= 0, show_chain
= 0, i
= 0, ret
= 1;
75 if ((vpm
= X509_VERIFY_PARAM_new()) == NULL
)
78 prog
= opt_init(argc
, argv
, verify_options
);
79 while ((o
= opt_next()) != OPT_EOF
) {
83 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
86 opt_help(verify_options
);
87 BIO_printf(bio_err
, "Recognized usages:\n");
88 for (i
= 0; i
< X509_PURPOSE_get_count(); i
++) {
90 ptmp
= X509_PURPOSE_get0(i
);
91 BIO_printf(bio_err
, "\t%-10s\t%s\n",
92 X509_PURPOSE_get0_sname(ptmp
),
93 X509_PURPOSE_get0_name(ptmp
));
96 BIO_printf(bio_err
, "Recognized verify names:\n");
97 for (i
= 0; i
< X509_VERIFY_PARAM_get_count(); i
++) {
98 const X509_VERIFY_PARAM
*vptmp
;
99 vptmp
= X509_VERIFY_PARAM_get0(i
);
100 BIO_printf(bio_err
, "\t%-10s\n",
101 X509_VERIFY_PARAM_get0_name(vptmp
));
106 if (!opt_verify(o
, vpm
))
123 /* Zero or more times */
124 if (!load_certs(opt_arg(), &untrusted
, FORMAT_PEM
, NULL
,
125 "untrusted certificates"))
129 /* Zero or more times */
132 if (!load_certs(opt_arg(), &trusted
, FORMAT_PEM
, NULL
,
133 "trusted certificates"))
137 /* Zero or more times */
138 if (!load_crls(opt_arg(), &crls
, FORMAT_PEM
, NULL
,
142 case OPT_CRL_DOWNLOAD
:
146 if ((e
= setup_engine(opt_arg(), 0)) == NULL
) {
147 /* Failure message already displayed */
155 if (!set_nameopt(opt_arg()))
163 argc
= opt_num_rest();
165 if (trusted
!= NULL
&& (CAfile
|| CApath
)) {
167 "%s: Cannot use -trusted with -CAfile or -CApath\n",
172 if ((store
= setup_verify(CAfile
, CApath
, noCAfile
, noCApath
)) == NULL
)
174 X509_STORE_set_verify_cb(store
, cb
);
177 X509_STORE_set1_param(store
, vpm
);
182 store_setup_crl_download(store
);
186 if (check(store
, NULL
, untrusted
, trusted
, crls
, show_chain
) != 1)
189 for (i
= 0; i
< argc
; i
++)
190 if (check(store
, argv
[i
], untrusted
, trusted
, crls
,
196 X509_VERIFY_PARAM_free(vpm
);
197 X509_STORE_free(store
);
198 sk_X509_pop_free(untrusted
, X509_free
);
199 sk_X509_pop_free(trusted
, X509_free
);
200 sk_X509_CRL_pop_free(crls
, X509_CRL_free
);
202 return (ret
< 0 ? 2 : ret
);
205 static int check(X509_STORE
*ctx
, const char *file
,
206 STACK_OF(X509
) *uchain
, STACK_OF(X509
) *tchain
,
207 STACK_OF(X509_CRL
) *crls
, int show_chain
)
212 STACK_OF(X509
) *chain
= NULL
;
215 x
= load_cert(file
, FORMAT_PEM
, "certificate file");
219 csc
= X509_STORE_CTX_new();
221 printf("error %s: X.509 store context allocation failed\n",
222 (file
== NULL
) ? "stdin" : file
);
226 X509_STORE_set_flags(ctx
, vflags
);
227 if (!X509_STORE_CTX_init(csc
, ctx
, x
, uchain
)) {
228 X509_STORE_CTX_free(csc
);
229 printf("error %s: X.509 store context initialization failed\n",
230 (file
== NULL
) ? "stdin" : file
);
234 X509_STORE_CTX_set0_trusted_stack(csc
, tchain
);
236 X509_STORE_CTX_set0_crls(csc
, crls
);
237 i
= X509_verify_cert(csc
);
238 if (i
> 0 && X509_STORE_CTX_get_error(csc
) == X509_V_OK
) {
239 printf("%s: OK\n", (file
== NULL
) ? "stdin" : file
);
244 chain
= X509_STORE_CTX_get1_chain(csc
);
245 num_untrusted
= X509_STORE_CTX_get_num_untrusted(csc
);
247 for (j
= 0; j
< sk_X509_num(chain
); j
++) {
248 X509
*cert
= sk_X509_value(chain
, j
);
249 printf("depth=%d: ", j
);
250 X509_NAME_print_ex_fp(stdout
,
251 X509_get_subject_name(cert
),
253 if (j
< num_untrusted
)
254 printf(" (untrusted)");
257 sk_X509_pop_free(chain
, X509_free
);
260 printf("error %s: verification failed\n", (file
== NULL
) ? "stdin" : file
);
262 X509_STORE_CTX_free(csc
);
266 ERR_print_errors(bio_err
);
272 static int cb(int ok
, X509_STORE_CTX
*ctx
)
274 int cert_error
= X509_STORE_CTX_get_error(ctx
);
275 X509
*current_cert
= X509_STORE_CTX_get_current_cert(ctx
);
278 if (current_cert
!= NULL
) {
279 X509_NAME_print_ex(bio_err
,
280 X509_get_subject_name(current_cert
),
282 BIO_printf(bio_err
, "\n");
284 BIO_printf(bio_err
, "%serror %d at %d depth lookup: %s\n",
285 X509_STORE_CTX_get0_parent_ctx(ctx
) ? "[CRL path] " : "",
287 X509_STORE_CTX_get_error_depth(ctx
),
288 X509_verify_cert_error_string(cert_error
));
289 switch (cert_error
) {
290 case X509_V_ERR_NO_EXPLICIT_POLICY
:
293 case X509_V_ERR_CERT_HAS_EXPIRED
:
296 * since we are just checking the certificates, it is ok if they
297 * are self signed. But we should still warn the user.
299 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
:
300 /* Continue after extension errors too */
301 case X509_V_ERR_INVALID_CA
:
302 case X509_V_ERR_INVALID_NON_CA
:
303 case X509_V_ERR_PATH_LENGTH_EXCEEDED
:
304 case X509_V_ERR_INVALID_PURPOSE
:
305 case X509_V_ERR_CRL_HAS_EXPIRED
:
306 case X509_V_ERR_CRL_NOT_YET_VALID
:
307 case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION
:
314 if (cert_error
== X509_V_OK
&& ok
== 2)