2 * Copyright 1995-2016 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
14 #include <openssl/bio.h>
15 #include <openssl/err.h>
16 #include <openssl/x509.h>
17 #include <openssl/x509v3.h>
18 #include <openssl/pem.h>
20 static int cb(int ok
, X509_STORE_CTX
*ctx
);
21 static int check(X509_STORE
*ctx
, const char *file
,
22 STACK_OF(X509
) *uchain
, STACK_OF(X509
) *tchain
,
23 STACK_OF(X509_CRL
) *crls
, int show_chain
);
24 static int v_verbose
= 0, vflags
= 0;
26 typedef enum OPTION_choice
{
27 OPT_ERR
= -1, OPT_EOF
= 0, OPT_HELP
,
28 OPT_ENGINE
, OPT_CAPATH
, OPT_CAFILE
, OPT_NOCAPATH
, OPT_NOCAFILE
,
29 OPT_UNTRUSTED
, OPT_TRUSTED
, OPT_CRLFILE
, OPT_CRL_DOWNLOAD
, OPT_SHOW_CHAIN
,
34 OPTIONS 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"},
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"},
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"},
46 {"untrusted", OPT_UNTRUSTED
, '<', "A file of untrusted certificates"},
47 {"trusted", OPT_TRUSTED
, '<', "A file of trusted certificates"},
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"},
55 #ifndef OPENSSL_NO_ENGINE
56 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
61 int verify_main(int argc
, char **argv
)
63 STACK_OF(X509
) *untrusted
= NULL
, *trusted
= NULL
;
64 STACK_OF(X509_CRL
) *crls
= NULL
;
65 X509_STORE
*store
= NULL
;
66 X509_VERIFY_PARAM
*vpm
= NULL
;
67 const char *prog
, *CApath
= NULL
, *CAfile
= NULL
;
68 int noCApath
= 0, noCAfile
= 0;
69 int vpmtouched
= 0, crl_download
= 0, show_chain
= 0, i
= 0, ret
= 1;
72 if ((vpm
= X509_VERIFY_PARAM_new()) == NULL
)
75 prog
= opt_init(argc
, argv
, verify_options
);
76 while ((o
= opt_next()) != OPT_EOF
) {
80 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
83 opt_help(verify_options
);
84 BIO_printf(bio_err
, "Recognized usages:\n");
85 for (i
= 0; i
< X509_PURPOSE_get_count(); i
++) {
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
));
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
));
103 if (!opt_verify(o
, vpm
))
120 /* Zero or more times */
121 if (!load_certs(opt_arg(), &untrusted
, FORMAT_PEM
, NULL
,
122 "untrusted certificates"))
126 /* Zero or more times */
129 if (!load_certs(opt_arg(), &trusted
, FORMAT_PEM
, NULL
,
130 "trusted certificates"))
134 /* Zero or more times */
135 if (!load_crls(opt_arg(), &crls
, FORMAT_PEM
, NULL
,
139 case OPT_CRL_DOWNLOAD
:
143 if (setup_engine(opt_arg(), 0) == NULL
) {
144 /* Failure message already displayed */
156 argc
= opt_num_rest();
158 if (trusted
!= NULL
&& (CAfile
|| CApath
)) {
160 "%s: Cannot use -trusted with -CAfile or -CApath\n",
165 if ((store
= setup_verify(CAfile
, CApath
, noCAfile
, noCApath
)) == NULL
)
167 X509_STORE_set_verify_cb(store
, cb
);
170 X509_STORE_set1_param(store
, vpm
);
175 store_setup_crl_download(store
);
179 if (check(store
, NULL
, untrusted
, trusted
, crls
, show_chain
) != 1)
182 for (i
= 0; i
< argc
; i
++)
183 if (check(store
, argv
[i
], untrusted
, trusted
, crls
,
189 X509_VERIFY_PARAM_free(vpm
);
190 X509_STORE_free(store
);
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
);
194 return (ret
< 0 ? 2 : ret
);
197 static int check(X509_STORE
*ctx
, const char *file
,
198 STACK_OF(X509
) *uchain
, STACK_OF(X509
) *tchain
,
199 STACK_OF(X509_CRL
) *crls
, int show_chain
)
204 STACK_OF(X509
) *chain
= NULL
;
207 x
= load_cert(file
, FORMAT_PEM
, "certificate file");
211 csc
= X509_STORE_CTX_new();
213 printf("error %s: X.509 store context allocation failed\n",
214 (file
== NULL
) ? "stdin" : file
);
218 X509_STORE_set_flags(ctx
, vflags
);
219 if (!X509_STORE_CTX_init(csc
, ctx
, x
, uchain
)) {
220 printf("error %s: X.509 store context initialization failed\n",
221 (file
== NULL
) ? "stdin" : file
);
225 X509_STORE_CTX_set0_trusted_stack(csc
, tchain
);
227 X509_STORE_CTX_set0_crls(csc
, crls
);
228 i
= X509_verify_cert(csc
);
229 if (i
> 0 && X509_STORE_CTX_get_error(csc
) == X509_V_OK
) {
230 printf("%s: OK\n", (file
== NULL
) ? "stdin" : file
);
235 chain
= X509_STORE_CTX_get1_chain(csc
);
236 num_untrusted
= X509_STORE_CTX_get_num_untrusted(csc
);
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
),
244 if (j
< num_untrusted
)
245 printf(" (untrusted)");
248 sk_X509_pop_free(chain
, X509_free
);
251 printf("error %s: verification failed\n", (file
== NULL
) ? "stdin" : file
);
253 X509_STORE_CTX_free(csc
);
257 ERR_print_errors(bio_err
);
263 static int cb(int ok
, X509_STORE_CTX
*ctx
)
265 int cert_error
= X509_STORE_CTX_get_error(ctx
);
266 X509
*current_cert
= X509_STORE_CTX_get_current_cert(ctx
);
270 X509_NAME_print_ex(bio_err
,
271 X509_get_subject_name(current_cert
),
273 BIO_printf(bio_err
, "\n");
275 BIO_printf(bio_err
, "%serror %d at %d depth lookup: %s\n",
276 X509_STORE_CTX_get0_parent_ctx(ctx
) ? "[CRL path] " : "",
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
:
283 case X509_V_ERR_CERT_HAS_EXPIRED
:
286 * since we are just checking the certificates, it is ok if they
287 * are self signed. But we should still warn the user.
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
:
304 if (cert_error
== X509_V_OK
&& ok
== 2)