2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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 unsigned char *sm2id
, size_t sm2idlen
);
26 static int v_verbose
= 0, vflags
= 0;
28 typedef enum OPTION_choice
{
29 OPT_ERR
= -1, OPT_EOF
= 0, OPT_HELP
,
30 OPT_ENGINE
, OPT_CAPATH
, OPT_CAFILE
, OPT_NOCAPATH
, OPT_NOCAFILE
,
31 OPT_UNTRUSTED
, OPT_TRUSTED
, OPT_CRLFILE
, OPT_CRL_DOWNLOAD
, OPT_SHOW_CHAIN
,
32 OPT_V_ENUM
, OPT_NAMEOPT
,
33 OPT_VERBOSE
, OPT_SM2ID
, OPT_SM2HEXID
36 const OPTIONS verify_options
[] = {
37 {OPT_HELP_STR
, 1, '-', "Usage: %s [options] cert.pem...\n"},
38 {OPT_HELP_STR
, 1, '-', "Valid options are:\n"},
39 {"help", OPT_HELP
, '-', "Display this summary"},
40 {"verbose", OPT_VERBOSE
, '-',
41 "Print extra information about the operations being performed."},
42 {"CApath", OPT_CAPATH
, '/', "A directory of trusted certificates"},
43 {"CAfile", OPT_CAFILE
, '<', "A file of trusted certificates"},
44 {"no-CAfile", OPT_NOCAFILE
, '-',
45 "Do not load the default certificates file"},
46 {"no-CApath", OPT_NOCAPATH
, '-',
47 "Do not load certificates from the default certificates directory"},
48 {"untrusted", OPT_UNTRUSTED
, '<', "A file of untrusted certificates"},
49 {"trusted", OPT_TRUSTED
, '<', "A file of trusted certificates"},
50 {"CRLfile", OPT_CRLFILE
, '<',
51 "File containing one or more CRL's (in PEM format) to load"},
52 {"crl_download", OPT_CRL_DOWNLOAD
, '-',
53 "Attempt to download CRL information for this certificate"},
54 {"show_chain", OPT_SHOW_CHAIN
, '-',
55 "Display information about the certificate chain"},
56 {"nameopt", OPT_NAMEOPT
, 's', "Various certificate name options"},
58 #ifndef OPENSSL_NO_ENGINE
59 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
61 #ifndef OPENSSL_NO_SM2
62 {"sm2-id", OPT_SM2ID
, 's',
63 "Specify an ID string to verify an SM2 certificate"},
64 {"sm2-hex-id", OPT_SM2HEXID
, 's',
65 "Specify a hex ID string to verify an SM2 certificate"},
70 int verify_main(int argc
, char **argv
)
73 STACK_OF(X509
) *untrusted
= NULL
, *trusted
= NULL
;
74 STACK_OF(X509_CRL
) *crls
= NULL
;
75 X509_STORE
*store
= NULL
;
76 X509_VERIFY_PARAM
*vpm
= NULL
;
77 const char *prog
, *CApath
= NULL
, *CAfile
= NULL
;
78 int noCApath
= 0, noCAfile
= 0;
79 int vpmtouched
= 0, crl_download
= 0, show_chain
= 0, i
= 0, ret
= 1;
81 unsigned char *sm2_id
= NULL
;
85 if ((vpm
= X509_VERIFY_PARAM_new()) == NULL
)
88 prog
= opt_init(argc
, argv
, verify_options
);
89 while ((o
= opt_next()) != OPT_EOF
) {
93 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
96 opt_help(verify_options
);
97 BIO_printf(bio_err
, "Recognized usages:\n");
98 for (i
= 0; i
< X509_PURPOSE_get_count(); i
++) {
100 ptmp
= X509_PURPOSE_get0(i
);
101 BIO_printf(bio_err
, "\t%-10s\t%s\n",
102 X509_PURPOSE_get0_sname(ptmp
),
103 X509_PURPOSE_get0_name(ptmp
));
106 BIO_printf(bio_err
, "Recognized verify names:\n");
107 for (i
= 0; i
< X509_VERIFY_PARAM_get_count(); i
++) {
108 const X509_VERIFY_PARAM
*vptmp
;
109 vptmp
= X509_VERIFY_PARAM_get0(i
);
110 BIO_printf(bio_err
, "\t%-10s\n",
111 X509_VERIFY_PARAM_get0_name(vptmp
));
116 if (!opt_verify(o
, vpm
))
133 /* Zero or more times */
134 if (!load_certs(opt_arg(), &untrusted
, FORMAT_PEM
, NULL
,
135 "untrusted certificates"))
139 /* Zero or more times */
142 if (!load_certs(opt_arg(), &trusted
, FORMAT_PEM
, NULL
,
143 "trusted certificates"))
147 /* Zero or more times */
148 if (!load_crls(opt_arg(), &crls
, FORMAT_PEM
, NULL
,
152 case OPT_CRL_DOWNLOAD
:
156 if ((e
= setup_engine(opt_arg(), 0)) == NULL
) {
157 /* Failure message already displayed */
165 if (!set_nameopt(opt_arg()))
172 if (sm2_id
!= NULL
) {
174 "Use one of the options 'sm2-hex-id' or 'sm2-id' \n");
177 sm2_id
= (unsigned char *)opt_arg();
178 sm2_idlen
= strlen((const char *)sm2_id
);
181 if (sm2_id
!= NULL
) {
183 "Use one of the options 'sm2-hex-id' or 'sm2-id' \n");
186 /* try to parse the input as hex string first */
188 sm2_id
= OPENSSL_hexstr2buf(opt_arg(), (long *)&sm2_idlen
);
189 if (sm2_id
== NULL
) {
190 BIO_printf(bio_err
, "Invalid hex string input\n");
196 argc
= opt_num_rest();
198 if (trusted
!= NULL
&& (CAfile
|| CApath
)) {
200 "%s: Cannot use -trusted with -CAfile or -CApath\n",
205 if ((store
= setup_verify(CAfile
, CApath
, noCAfile
, noCApath
)) == NULL
)
207 X509_STORE_set_verify_cb(store
, cb
);
210 X509_STORE_set1_param(store
, vpm
);
215 store_setup_crl_download(store
);
219 if (check(store
, NULL
, untrusted
, trusted
, crls
, show_chain
,
220 sm2_id
, sm2_idlen
) != 1)
223 for (i
= 0; i
< argc
; i
++)
224 if (check(store
, argv
[i
], untrusted
, trusted
, crls
,
225 show_chain
, sm2_id
, sm2_idlen
) != 1)
231 OPENSSL_free(sm2_id
);
232 X509_VERIFY_PARAM_free(vpm
);
233 X509_STORE_free(store
);
234 sk_X509_pop_free(untrusted
, X509_free
);
235 sk_X509_pop_free(trusted
, X509_free
);
236 sk_X509_CRL_pop_free(crls
, X509_CRL_free
);
238 return (ret
< 0 ? 2 : ret
);
241 static int check(X509_STORE
*ctx
, const char *file
,
242 STACK_OF(X509
) *uchain
, STACK_OF(X509
) *tchain
,
243 STACK_OF(X509_CRL
) *crls
, int show_chain
,
244 unsigned char *sm2id
, size_t sm2idlen
)
249 STACK_OF(X509
) *chain
= NULL
;
252 x
= load_cert(file
, FORMAT_PEM
, "certificate file");
257 #ifndef OPENSSL_NO_SM2
258 ASN1_OCTET_STRING
*v
;
260 v
= ASN1_OCTET_STRING_new();
262 BIO_printf(bio_err
, "error: SM2 ID allocation failed\n");
266 if (!ASN1_OCTET_STRING_set(v
, sm2id
, sm2idlen
)) {
267 BIO_printf(bio_err
, "error: setting SM2 ID failed\n");
268 ASN1_OCTET_STRING_free(v
);
272 X509_set0_sm2_id(x
, v
);
276 csc
= X509_STORE_CTX_new();
278 BIO_printf(bio_err
, "error %s: X.509 store context allocation failed\n",
279 (file
== NULL
) ? "stdin" : file
);
283 X509_STORE_set_flags(ctx
, vflags
);
284 if (!X509_STORE_CTX_init(csc
, ctx
, x
, uchain
)) {
285 X509_STORE_CTX_free(csc
);
287 "error %s: X.509 store context initialization failed\n",
288 (file
== NULL
) ? "stdin" : file
);
292 X509_STORE_CTX_set0_trusted_stack(csc
, tchain
);
294 X509_STORE_CTX_set0_crls(csc
, crls
);
295 i
= X509_verify_cert(csc
);
296 if (i
> 0 && X509_STORE_CTX_get_error(csc
) == X509_V_OK
) {
297 BIO_printf(bio_out
, "%s: OK\n", (file
== NULL
) ? "stdin" : file
);
302 chain
= X509_STORE_CTX_get1_chain(csc
);
303 num_untrusted
= X509_STORE_CTX_get_num_untrusted(csc
);
304 BIO_printf(bio_out
, "Chain:\n");
305 for (j
= 0; j
< sk_X509_num(chain
); j
++) {
306 X509
*cert
= sk_X509_value(chain
, j
);
307 BIO_printf(bio_out
, "depth=%d: ", j
);
308 X509_NAME_print_ex_fp(stdout
,
309 X509_get_subject_name(cert
),
311 if (j
< num_untrusted
)
312 BIO_printf(bio_out
, " (untrusted)");
313 BIO_printf(bio_out
, "\n");
315 sk_X509_pop_free(chain
, X509_free
);
319 "error %s: verification failed\n",
320 (file
== NULL
) ? "stdin" : file
);
322 X509_STORE_CTX_free(csc
);
326 ERR_print_errors(bio_err
);
332 static int cb(int ok
, X509_STORE_CTX
*ctx
)
334 int cert_error
= X509_STORE_CTX_get_error(ctx
);
335 X509
*current_cert
= X509_STORE_CTX_get_current_cert(ctx
);
338 if (current_cert
!= NULL
) {
339 X509_NAME_print_ex(bio_err
,
340 X509_get_subject_name(current_cert
),
342 BIO_printf(bio_err
, "\n");
344 BIO_printf(bio_err
, "%serror %d at %d depth lookup: %s\n",
345 X509_STORE_CTX_get0_parent_ctx(ctx
) ? "[CRL path] " : "",
347 X509_STORE_CTX_get_error_depth(ctx
),
348 X509_verify_cert_error_string(cert_error
));
351 * Pretend that some errors are ok, so they don't stop further
352 * processing of the certificate chain. Setting ok = 1 does this.
353 * After X509_verify_cert() is done, we verify that there were
354 * no actual errors, even if the returned value was positive.
356 switch (cert_error
) {
357 case X509_V_ERR_NO_EXPLICIT_POLICY
:
360 case X509_V_ERR_CERT_HAS_EXPIRED
:
361 /* Continue even if the leaf is a self signed cert */
362 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
:
363 /* Continue after extension errors too */
364 case X509_V_ERR_INVALID_CA
:
365 case X509_V_ERR_INVALID_NON_CA
:
366 case X509_V_ERR_PATH_LENGTH_EXCEEDED
:
367 case X509_V_ERR_INVALID_PURPOSE
:
368 case X509_V_ERR_CRL_HAS_EXPIRED
:
369 case X509_V_ERR_CRL_NOT_YET_VALID
:
370 case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION
:
377 if (cert_error
== X509_V_OK
&& ok
== 2)