2 * Copyright 1995-2021 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
11 #include "internal/cryptlib.h"
12 #include <openssl/buffer.h>
13 #include <openssl/bn.h>
14 #include <openssl/objects.h>
15 #include <openssl/x509.h>
16 #include <openssl/x509v3.h>
17 #include "crypto/asn1.h"
18 #include "crypto/x509.h"
20 void OSSL_STACK_OF_X509_free(STACK_OF(X509
) *certs
)
22 sk_X509_pop_free(certs
, X509_free
);
25 #ifndef OPENSSL_NO_STDIO
26 int X509_print_fp(FILE *fp
, X509
*x
)
28 return X509_print_ex_fp(fp
, x
, XN_FLAG_COMPAT
, X509_FLAG_COMPAT
);
31 int X509_print_ex_fp(FILE *fp
, X509
*x
, unsigned long nmflag
,
37 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
38 ERR_raise(ERR_LIB_X509
, ERR_R_BUF_LIB
);
41 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
42 ret
= X509_print_ex(b
, x
, nmflag
, cflag
);
48 int X509_print(BIO
*bp
, X509
*x
)
50 return X509_print_ex(bp
, x
, XN_FLAG_COMPAT
, X509_FLAG_COMPAT
);
53 int X509_print_ex(BIO
*bp
, X509
*x
, unsigned long nmflags
,
58 char *m
= NULL
, mlch
= ' ';
59 int nmindent
= 0, printok
= 0;
60 EVP_PKEY
*pkey
= NULL
;
63 if ((nmflags
& XN_FLAG_SEP_MASK
) == XN_FLAG_SEP_MULTILINE
) {
68 if (nmflags
== X509_FLAG_COMPAT
) {
73 if (!(cflag
& X509_FLAG_NO_HEADER
)) {
74 if (BIO_write(bp
, "Certificate:\n", 13) <= 0)
76 if (BIO_write(bp
, " Data:\n", 10) <= 0)
79 if (!(cflag
& X509_FLAG_NO_VERSION
)) {
80 l
= X509_get_version(x
);
81 if (l
>= X509_VERSION_1
&& l
<= X509_VERSION_3
) {
82 if (BIO_printf(bp
, "%8sVersion: %ld (0x%lx)\n", "", l
+ 1, (unsigned long)l
) <= 0)
85 if (BIO_printf(bp
, "%8sVersion: Unknown (%ld)\n", "", l
) <= 0)
89 if (!(cflag
& X509_FLAG_NO_SERIAL
)) {
90 const ASN1_INTEGER
*bs
= X509_get0_serialNumber(x
);
92 if (BIO_write(bp
, " Serial Number:", 22) <= 0)
95 if (bs
->length
<= (int)sizeof(long)) {
97 l
= ASN1_INTEGER_get(bs
);
104 if (bs
->type
== V_ASN1_NEG_INTEGER
) {
105 ul
= 0 - (unsigned long)l
;
111 if (BIO_printf(bp
, " %s%lu (%s0x%lx)\n", neg
, ul
, neg
, ul
) <= 0)
114 neg
= (bs
->type
== V_ASN1_NEG_INTEGER
) ? " (Negative)" : "";
115 if (BIO_printf(bp
, "\n%12s%s", "", neg
) <= 0)
118 for (i
= 0; i
< bs
->length
; i
++) {
119 if (BIO_printf(bp
, "%02x%c", bs
->data
[i
],
120 ((i
+ 1 == bs
->length
) ? '\n' : ':')) <= 0)
127 if (!(cflag
& X509_FLAG_NO_SIGNAME
)) {
128 const X509_ALGOR
*tsig_alg
= X509_get0_tbs_sigalg(x
);
130 if (BIO_puts(bp
, " ") <= 0)
132 if (X509_signature_print(bp
, tsig_alg
, NULL
) <= 0)
136 if (!(cflag
& X509_FLAG_NO_ISSUER
)) {
137 if (BIO_printf(bp
, " Issuer:%c", mlch
) <= 0)
139 if (X509_NAME_print_ex(bp
, X509_get_issuer_name(x
), nmindent
, nmflags
)
142 if (BIO_write(bp
, "\n", 1) <= 0)
145 if (!(cflag
& X509_FLAG_NO_VALIDITY
)) {
146 if (BIO_write(bp
, " Validity\n", 17) <= 0)
148 if (BIO_write(bp
, " Not Before: ", 24) <= 0)
150 if (ossl_asn1_time_print_ex(bp
, X509_get0_notBefore(x
), ASN1_DTFLGS_RFC822
) == 0)
152 if (BIO_write(bp
, "\n Not After : ", 25) <= 0)
154 if (ossl_asn1_time_print_ex(bp
, X509_get0_notAfter(x
), ASN1_DTFLGS_RFC822
) == 0)
156 if (BIO_write(bp
, "\n", 1) <= 0)
159 if (!(cflag
& X509_FLAG_NO_SUBJECT
)) {
160 if (BIO_printf(bp
, " Subject:%c", mlch
) <= 0)
162 if (X509_NAME_print_ex
163 (bp
, X509_get_subject_name(x
), nmindent
, nmflags
) < printok
)
165 if (BIO_write(bp
, "\n", 1) <= 0)
168 if (!(cflag
& X509_FLAG_NO_PUBKEY
)) {
169 X509_PUBKEY
*xpkey
= X509_get_X509_PUBKEY(x
);
171 X509_PUBKEY_get0_param(&xpoid
, NULL
, NULL
, NULL
, xpkey
);
172 if (BIO_write(bp
, " Subject Public Key Info:\n", 33) <= 0)
174 if (BIO_printf(bp
, "%12sPublic Key Algorithm: ", "") <= 0)
176 if (i2a_ASN1_OBJECT(bp
, xpoid
) <= 0)
178 if (BIO_puts(bp
, "\n") <= 0)
181 pkey
= X509_get0_pubkey(x
);
183 BIO_printf(bp
, "%12sUnable to load Public Key\n", "");
184 ERR_print_errors(bp
);
186 EVP_PKEY_print_public(bp
, pkey
, 16, NULL
);
190 if (!(cflag
& X509_FLAG_NO_IDS
)) {
191 const ASN1_BIT_STRING
*iuid
, *suid
;
192 X509_get0_uids(x
, &iuid
, &suid
);
194 if (BIO_printf(bp
, "%8sIssuer Unique ID: ", "") <= 0)
196 if (!X509_signature_dump(bp
, iuid
, 12))
200 if (BIO_printf(bp
, "%8sSubject Unique ID: ", "") <= 0)
202 if (!X509_signature_dump(bp
, suid
, 12))
207 if (!(cflag
& X509_FLAG_NO_EXTENSIONS
)
208 && !X509V3_extensions_print(bp
, "X509v3 extensions",
209 X509_get0_extensions(x
), cflag
, 8))
212 if (!(cflag
& X509_FLAG_NO_SIGDUMP
)) {
213 const X509_ALGOR
*sig_alg
;
214 const ASN1_BIT_STRING
*sig
;
215 X509_get0_signature(&sig
, &sig_alg
, x
);
216 if (X509_signature_print(bp
, sig_alg
, sig
) <= 0)
219 if (!(cflag
& X509_FLAG_NO_AUX
)) {
220 if (!X509_aux_print(bp
, x
, 0))
229 int X509_ocspid_print(BIO
*bp
, X509
*x
)
231 unsigned char *der
= NULL
;
232 unsigned char *dertmp
;
235 unsigned char SHA1md
[SHA_DIGEST_LENGTH
];
236 ASN1_BIT_STRING
*keybstr
;
237 const X509_NAME
*subj
;
240 if (x
== NULL
|| bp
== NULL
)
243 * display the hash of the subject as it would appear in OCSP requests
245 if (BIO_printf(bp
, " Subject OCSP hash: ") <= 0)
247 subj
= X509_get_subject_name(x
);
248 derlen
= i2d_X509_NAME(subj
, NULL
);
251 if ((der
= dertmp
= OPENSSL_malloc(derlen
)) == NULL
)
253 i2d_X509_NAME(subj
, &dertmp
);
255 md
= EVP_MD_fetch(x
->libctx
, SN_sha1
, x
->propq
);
258 if (!EVP_Digest(der
, derlen
, SHA1md
, NULL
, md
, NULL
))
260 for (i
= 0; i
< SHA_DIGEST_LENGTH
; i
++) {
261 if (BIO_printf(bp
, "%02X", SHA1md
[i
]) <= 0)
268 * display the hash of the public key as it would appear in OCSP requests
270 if (BIO_printf(bp
, "\n Public key OCSP hash: ") <= 0)
273 keybstr
= X509_get0_pubkey_bitstr(x
);
278 if (!EVP_Digest(ASN1_STRING_get0_data(keybstr
),
279 ASN1_STRING_length(keybstr
), SHA1md
, NULL
, md
, NULL
))
281 for (i
= 0; i
< SHA_DIGEST_LENGTH
; i
++) {
282 if (BIO_printf(bp
, "%02X", SHA1md
[i
]) <= 0)
285 BIO_printf(bp
, "\n");
295 int X509_signature_dump(BIO
*bp
, const ASN1_STRING
*sig
, int indent
)
297 const unsigned char *s
;
302 for (i
= 0; i
< n
; i
++) {
304 if (i
> 0 && BIO_write(bp
, "\n", 1) <= 0)
306 if (BIO_indent(bp
, indent
, indent
) <= 0)
309 if (BIO_printf(bp
, "%02x%s", s
[i
], ((i
+ 1) == n
) ? "" : ":") <= 0)
312 if (BIO_write(bp
, "\n", 1) != 1)
318 int X509_signature_print(BIO
*bp
, const X509_ALGOR
*sigalg
,
319 const ASN1_STRING
*sig
)
323 if (BIO_printf(bp
, "%*sSignature Algorithm: ", indent
, "") <= 0)
325 if (i2a_ASN1_OBJECT(bp
, sigalg
->algorithm
) <= 0)
328 if (sig
&& BIO_printf(bp
, "\n%*sSignature Value:", indent
, "") <= 0)
330 sig_nid
= OBJ_obj2nid(sigalg
->algorithm
);
331 if (sig_nid
!= NID_undef
) {
332 int pkey_nid
, dig_nid
;
333 const EVP_PKEY_ASN1_METHOD
*ameth
;
334 if (OBJ_find_sigid_algs(sig_nid
, &dig_nid
, &pkey_nid
)) {
335 ameth
= EVP_PKEY_asn1_find(NULL
, pkey_nid
);
336 if (ameth
&& ameth
->sig_print
)
337 return ameth
->sig_print(bp
, sigalg
, sig
, indent
+ 4, 0);
340 if (BIO_write(bp
, "\n", 1) != 1)
343 return X509_signature_dump(bp
, sig
, indent
+ 4);
347 int X509_aux_print(BIO
*out
, X509
*x
, int indent
)
349 char oidstr
[80], first
;
350 STACK_OF(ASN1_OBJECT
) *trust
, *reject
;
351 const unsigned char *alias
, *keyid
;
354 if (X509_trusted(x
) == 0)
356 trust
= X509_get0_trust_objects(x
);
357 reject
= X509_get0_reject_objects(x
);
360 BIO_printf(out
, "%*sTrusted Uses:\n%*s", indent
, "", indent
+ 2, "");
361 for (i
= 0; i
< sk_ASN1_OBJECT_num(trust
); i
++) {
366 OBJ_obj2txt(oidstr
, sizeof(oidstr
),
367 sk_ASN1_OBJECT_value(trust
, i
), 0);
368 BIO_puts(out
, oidstr
);
372 BIO_printf(out
, "%*sNo Trusted Uses.\n", indent
, "");
375 BIO_printf(out
, "%*sRejected Uses:\n%*s", indent
, "", indent
+ 2, "");
376 for (i
= 0; i
< sk_ASN1_OBJECT_num(reject
); i
++) {
381 OBJ_obj2txt(oidstr
, sizeof(oidstr
),
382 sk_ASN1_OBJECT_value(reject
, i
), 0);
383 BIO_puts(out
, oidstr
);
387 BIO_printf(out
, "%*sNo Rejected Uses.\n", indent
, "");
388 alias
= X509_alias_get0(x
, &i
);
390 BIO_printf(out
, "%*sAlias: %.*s\n", indent
, "", i
, alias
);
391 keyid
= X509_keyid_get0(x
, &keyidlen
);
393 BIO_printf(out
, "%*sKey Id: ", indent
, "");
394 for (i
= 0; i
< keyidlen
; i
++)
395 BIO_printf(out
, "%s%02X", i
? ":" : "", keyid
[i
]);
396 BIO_write(out
, "\n", 1);
402 * Helper functions for improving certificate verification error diagnostics
405 int ossl_x509_print_ex_brief(BIO
*bio
, X509
*cert
, unsigned long neg_cflags
)
407 unsigned long flags
= ASN1_STRFLGS_RFC2253
| ASN1_STRFLGS_ESC_QUOTE
|
408 XN_FLAG_SEP_CPLUS_SPC
| XN_FLAG_FN_SN
;
411 return BIO_printf(bio
, " (no certificate)\n") > 0;
412 if (BIO_printf(bio
, " certificate\n") <= 0
413 || !X509_print_ex(bio
, cert
, flags
, ~X509_FLAG_NO_SUBJECT
))
415 if (X509_check_issued((X509
*)cert
, cert
) == X509_V_OK
) {
416 if (BIO_printf(bio
, " self-issued\n") <= 0)
419 if (BIO_printf(bio
, " ") <= 0
420 || !X509_print_ex(bio
, cert
, flags
, ~X509_FLAG_NO_ISSUER
))
423 if (!X509_print_ex(bio
, cert
, flags
,
424 ~(X509_FLAG_NO_SERIAL
| X509_FLAG_NO_VALIDITY
)))
426 if (X509_cmp_current_time(X509_get0_notBefore(cert
)) > 0)
427 if (BIO_printf(bio
, " not yet valid\n") <= 0)
429 if (X509_cmp_current_time(X509_get0_notAfter(cert
)) < 0)
430 if (BIO_printf(bio
, " no more valid\n") <= 0)
432 return X509_print_ex(bio
, cert
, flags
,
433 ~neg_cflags
& ~X509_FLAG_EXTENSIONS_ONLY_KID
);
436 static int print_certs(BIO
*bio
, const STACK_OF(X509
) *certs
)
440 if (certs
== NULL
|| sk_X509_num(certs
) <= 0)
441 return BIO_printf(bio
, " (no certificates)\n") >= 0;
443 for (i
= 0; i
< sk_X509_num(certs
); i
++) {
444 X509
*cert
= sk_X509_value(certs
, i
);
447 if (!ossl_x509_print_ex_brief(bio
, cert
, 0))
449 if (!X509V3_extensions_print(bio
, NULL
,
450 X509_get0_extensions(cert
),
451 X509_FLAG_EXTENSIONS_ONLY_KID
, 8))
458 static int print_store_certs(BIO
*bio
, X509_STORE
*store
)
461 STACK_OF(X509
) *certs
= X509_STORE_get1_all_certs(store
);
462 int ret
= print_certs(bio
, certs
);
464 OSSL_STACK_OF_X509_free(certs
);
467 return BIO_printf(bio
, " (no trusted store)\n") >= 0;
471 /* Extend the error queue with details on a failed cert verification */
472 int X509_STORE_CTX_print_verify_cb(int ok
, X509_STORE_CTX
*ctx
)
474 if (ok
== 0 && ctx
!= NULL
) {
475 int cert_error
= X509_STORE_CTX_get_error(ctx
);
476 BIO
*bio
= BIO_new(BIO_s_mem()); /* may be NULL */
480 BIO_printf(bio
, "%s at depth = %d error = %d (%s)\n",
481 X509_STORE_CTX_get0_parent_ctx(ctx
) != NULL
482 ? "CRL path validation"
483 : "Certificate verification",
484 X509_STORE_CTX_get_error_depth(ctx
),
485 cert_error
, X509_verify_cert_error_string(cert_error
));
487 X509_STORE
*ts
= X509_STORE_CTX_get0_store(ctx
);
488 X509_VERIFY_PARAM
*vpm
= X509_STORE_get0_param(ts
);
492 switch (cert_error
) {
493 case X509_V_ERR_HOSTNAME_MISMATCH
:
494 BIO_printf(bio
, "Expected hostname(s) = ");
495 while ((str
= X509_VERIFY_PARAM_get0_host(vpm
, idx
++)) != NULL
)
496 BIO_printf(bio
, "%s%s", idx
== 1 ? "" : ", ", str
);
497 BIO_printf(bio
, "\n");
499 case X509_V_ERR_EMAIL_MISMATCH
:
500 str
= X509_VERIFY_PARAM_get0_email(vpm
);
502 BIO_printf(bio
, "Expected email address = %s\n", str
);
504 case X509_V_ERR_IP_ADDRESS_MISMATCH
:
505 str
= X509_VERIFY_PARAM_get1_ip_asc(vpm
);
507 BIO_printf(bio
, "Expected IP address = %s\n", str
);
515 BIO_printf(bio
, "Failure for:\n");
516 ossl_x509_print_ex_brief(bio
, X509_STORE_CTX_get_current_cert(ctx
),
517 X509_FLAG_NO_EXTENSIONS
);
518 if (cert_error
== X509_V_ERR_CERT_UNTRUSTED
519 || cert_error
== X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
520 || cert_error
== X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
521 || cert_error
== X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
522 || cert_error
== X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
523 || cert_error
== X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
524 || cert_error
== X509_V_ERR_STORE_LOOKUP
) {
525 BIO_printf(bio
, "Non-trusted certs:\n");
526 print_certs(bio
, X509_STORE_CTX_get0_untrusted(ctx
));
527 BIO_printf(bio
, "Certs in trust store:\n");
528 print_store_certs(bio
, X509_STORE_CTX_get0_store(ctx
));
530 ERR_raise(ERR_LIB_X509
, X509_R_CERTIFICATE_VERIFICATION_FAILED
);
531 ERR_add_error_mem_bio("\n", bio
);