2 * Copyright 1995-2020 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"
21 DEFINE_STACK_OF(ASN1_OBJECT
)
23 #ifndef OPENSSL_NO_STDIO
24 int X509_print_fp(FILE *fp
, X509
*x
)
26 return X509_print_ex_fp(fp
, x
, XN_FLAG_COMPAT
, X509_FLAG_COMPAT
);
29 int X509_print_ex_fp(FILE *fp
, X509
*x
, unsigned long nmflag
,
35 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
36 X509err(X509_F_X509_PRINT_EX_FP
, ERR_R_BUF_LIB
);
39 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
40 ret
= X509_print_ex(b
, x
, nmflag
, cflag
);
46 int X509_print(BIO
*bp
, X509
*x
)
48 return X509_print_ex(bp
, x
, XN_FLAG_COMPAT
, X509_FLAG_COMPAT
);
51 int X509_print_ex(BIO
*bp
, X509
*x
, unsigned long nmflags
,
56 char *m
= NULL
, mlch
= ' ';
59 EVP_PKEY
*pkey
= NULL
;
62 if ((nmflags
& XN_FLAG_SEP_MASK
) == XN_FLAG_SEP_MULTILINE
) {
67 if (nmflags
== X509_FLAG_COMPAT
)
70 if (!(cflag
& X509_FLAG_NO_HEADER
)) {
71 if (BIO_write(bp
, "Certificate:\n", 13) <= 0)
73 if (BIO_write(bp
, " Data:\n", 10) <= 0)
76 if (!(cflag
& X509_FLAG_NO_VERSION
)) {
77 l
= X509_get_version(x
);
78 if (l
>= 0 && l
<= 2) {
79 if (BIO_printf(bp
, "%8sVersion: %ld (0x%lx)\n", "", l
+ 1, (unsigned long)l
) <= 0)
82 if (BIO_printf(bp
, "%8sVersion: Unknown (%ld)\n", "", l
) <= 0)
86 if (!(cflag
& X509_FLAG_NO_SERIAL
)) {
88 if (BIO_write(bp
, " Serial Number:", 22) <= 0)
91 bs
= X509_get_serialNumber(x
);
92 if (bs
->length
<= (int)sizeof(long)) {
94 l
= ASN1_INTEGER_get(bs
);
101 if (bs
->type
== V_ASN1_NEG_INTEGER
) {
102 ul
= 0 - (unsigned long)l
;
108 if (BIO_printf(bp
, " %s%lu (%s0x%lx)\n", neg
, ul
, neg
, ul
) <= 0)
111 neg
= (bs
->type
== V_ASN1_NEG_INTEGER
) ? " (Negative)" : "";
112 if (BIO_printf(bp
, "\n%12s%s", "", neg
) <= 0)
115 for (i
= 0; i
< bs
->length
; i
++) {
116 if (BIO_printf(bp
, "%02x%c", bs
->data
[i
],
117 ((i
+ 1 == bs
->length
) ? '\n' : ':')) <= 0)
124 if (!(cflag
& X509_FLAG_NO_SIGNAME
)) {
125 const X509_ALGOR
*tsig_alg
= X509_get0_tbs_sigalg(x
);
127 if (BIO_puts(bp
, " ") <= 0)
129 if (X509_signature_print(bp
, tsig_alg
, NULL
) <= 0)
133 if (!(cflag
& X509_FLAG_NO_ISSUER
)) {
134 if (BIO_printf(bp
, " Issuer:%c", mlch
) <= 0)
136 if (X509_NAME_print_ex(bp
, X509_get_issuer_name(x
), nmindent
, nmflags
)
139 if (BIO_write(bp
, "\n", 1) <= 0)
142 if (!(cflag
& X509_FLAG_NO_VALIDITY
)) {
143 if (BIO_write(bp
, " Validity\n", 17) <= 0)
145 if (BIO_write(bp
, " Not Before: ", 24) <= 0)
147 if (!ASN1_TIME_print(bp
, X509_get0_notBefore(x
)))
149 if (BIO_write(bp
, "\n Not After : ", 25) <= 0)
151 if (!ASN1_TIME_print(bp
, X509_get0_notAfter(x
)))
153 if (BIO_write(bp
, "\n", 1) <= 0)
156 if (!(cflag
& X509_FLAG_NO_SUBJECT
)) {
157 if (BIO_printf(bp
, " Subject:%c", mlch
) <= 0)
159 if (X509_NAME_print_ex
160 (bp
, X509_get_subject_name(x
), nmindent
, nmflags
) < 0)
162 if (BIO_write(bp
, "\n", 1) <= 0)
165 if (!(cflag
& X509_FLAG_NO_PUBKEY
)) {
166 X509_PUBKEY
*xpkey
= X509_get_X509_PUBKEY(x
);
168 X509_PUBKEY_get0_param(&xpoid
, NULL
, NULL
, NULL
, xpkey
);
169 if (BIO_write(bp
, " Subject Public Key Info:\n", 33) <= 0)
171 if (BIO_printf(bp
, "%12sPublic Key Algorithm: ", "") <= 0)
173 if (i2a_ASN1_OBJECT(bp
, xpoid
) <= 0)
175 if (BIO_puts(bp
, "\n") <= 0)
178 pkey
= X509_get0_pubkey(x
);
180 BIO_printf(bp
, "%12sUnable to load Public Key\n", "");
181 ERR_print_errors(bp
);
183 EVP_PKEY_print_public(bp
, pkey
, 16, NULL
);
187 if (!(cflag
& X509_FLAG_NO_IDS
)) {
188 const ASN1_BIT_STRING
*iuid
, *suid
;
189 X509_get0_uids(x
, &iuid
, &suid
);
191 if (BIO_printf(bp
, "%8sIssuer Unique ID: ", "") <= 0)
193 if (!X509_signature_dump(bp
, iuid
, 12))
197 if (BIO_printf(bp
, "%8sSubject Unique ID: ", "") <= 0)
199 if (!X509_signature_dump(bp
, suid
, 12))
204 if (!(cflag
& X509_FLAG_NO_EXTENSIONS
))
205 X509V3_extensions_print(bp
, "X509v3 extensions",
206 X509_get0_extensions(x
), cflag
, 8);
208 if (!(cflag
& X509_FLAG_NO_SIGDUMP
)) {
209 const X509_ALGOR
*sig_alg
;
210 const ASN1_BIT_STRING
*sig
;
211 X509_get0_signature(&sig
, &sig_alg
, x
);
212 if (X509_signature_print(bp
, sig_alg
, sig
) <= 0)
215 if (!(cflag
& X509_FLAG_NO_AUX
)) {
216 if (!X509_aux_print(bp
, x
, 0))
225 int X509_ocspid_print(BIO
*bp
, X509
*x
)
227 unsigned char *der
= NULL
;
228 unsigned char *dertmp
;
231 unsigned char SHA1md
[SHA_DIGEST_LENGTH
];
232 ASN1_BIT_STRING
*keybstr
;
233 const X509_NAME
*subj
;
236 * display the hash of the subject as it would appear in OCSP requests
238 if (BIO_printf(bp
, " Subject OCSP hash: ") <= 0)
240 subj
= X509_get_subject_name(x
);
241 derlen
= i2d_X509_NAME(subj
, NULL
);
242 if ((der
= dertmp
= OPENSSL_malloc(derlen
)) == NULL
)
244 i2d_X509_NAME(subj
, &dertmp
);
246 if (!EVP_Digest(der
, derlen
, SHA1md
, NULL
, EVP_sha1(), NULL
))
248 for (i
= 0; i
< SHA_DIGEST_LENGTH
; i
++) {
249 if (BIO_printf(bp
, "%02X", SHA1md
[i
]) <= 0)
256 * display the hash of the public key as it would appear in OCSP requests
258 if (BIO_printf(bp
, "\n Public key OCSP hash: ") <= 0)
261 keybstr
= X509_get0_pubkey_bitstr(x
);
266 if (!EVP_Digest(ASN1_STRING_get0_data(keybstr
),
267 ASN1_STRING_length(keybstr
), SHA1md
, NULL
, EVP_sha1(),
270 for (i
= 0; i
< SHA_DIGEST_LENGTH
; i
++) {
271 if (BIO_printf(bp
, "%02X", SHA1md
[i
]) <= 0)
274 BIO_printf(bp
, "\n");
282 int X509_signature_dump(BIO
*bp
, const ASN1_STRING
*sig
, int indent
)
284 const unsigned char *s
;
289 for (i
= 0; i
< n
; i
++) {
291 if (i
> 0 && BIO_write(bp
, "\n", 1) <= 0)
293 if (BIO_indent(bp
, indent
, indent
) <= 0)
296 if (BIO_printf(bp
, "%02x%s", s
[i
], ((i
+ 1) == n
) ? "" : ":") <= 0)
299 if (BIO_write(bp
, "\n", 1) != 1)
305 int X509_signature_print(BIO
*bp
, const X509_ALGOR
*sigalg
,
306 const ASN1_STRING
*sig
)
310 if (BIO_printf(bp
, "%*sSignature Algorithm: ", indent
, "") <= 0)
312 if (i2a_ASN1_OBJECT(bp
, sigalg
->algorithm
) <= 0)
315 if (sig
&& BIO_printf(bp
, "\n%*sSignature Value:", indent
, "") <= 0)
317 sig_nid
= OBJ_obj2nid(sigalg
->algorithm
);
318 if (sig_nid
!= NID_undef
) {
319 int pkey_nid
, dig_nid
;
320 const EVP_PKEY_ASN1_METHOD
*ameth
;
321 if (OBJ_find_sigid_algs(sig_nid
, &dig_nid
, &pkey_nid
)) {
322 ameth
= EVP_PKEY_asn1_find(NULL
, pkey_nid
);
323 if (ameth
&& ameth
->sig_print
)
324 return ameth
->sig_print(bp
, sigalg
, sig
, indent
+ 4, 0);
327 if (BIO_write(bp
, "\n", 1) != 1)
330 return X509_signature_dump(bp
, sig
, indent
+ 4);
334 int X509_aux_print(BIO
*out
, X509
*x
, int indent
)
336 char oidstr
[80], first
;
337 STACK_OF(ASN1_OBJECT
) *trust
, *reject
;
338 const unsigned char *alias
, *keyid
;
341 if (X509_trusted(x
) == 0)
343 trust
= X509_get0_trust_objects(x
);
344 reject
= X509_get0_reject_objects(x
);
347 BIO_printf(out
, "%*sTrusted Uses:\n%*s", indent
, "", indent
+ 2, "");
348 for (i
= 0; i
< sk_ASN1_OBJECT_num(trust
); i
++) {
353 OBJ_obj2txt(oidstr
, sizeof(oidstr
),
354 sk_ASN1_OBJECT_value(trust
, i
), 0);
355 BIO_puts(out
, oidstr
);
359 BIO_printf(out
, "%*sNo Trusted Uses.\n", indent
, "");
362 BIO_printf(out
, "%*sRejected Uses:\n%*s", indent
, "", indent
+ 2, "");
363 for (i
= 0; i
< sk_ASN1_OBJECT_num(reject
); i
++) {
368 OBJ_obj2txt(oidstr
, sizeof(oidstr
),
369 sk_ASN1_OBJECT_value(reject
, i
), 0);
370 BIO_puts(out
, oidstr
);
374 BIO_printf(out
, "%*sNo Rejected Uses.\n", indent
, "");
375 alias
= X509_alias_get0(x
, NULL
);
377 BIO_printf(out
, "%*sAlias: %s\n", indent
, "", alias
);
378 keyid
= X509_keyid_get0(x
, &keyidlen
);
380 BIO_printf(out
, "%*sKey Id: ", indent
, "");
381 for (i
= 0; i
< keyidlen
; i
++)
382 BIO_printf(out
, "%s%02X", i
? ":" : "", keyid
[i
]);
383 BIO_write(out
, "\n", 1);
389 * Helper functions for improving certificate verification error diagnostics
392 int x509_print_ex_brief(BIO
*bio
, X509
*cert
, unsigned long neg_cflags
)
394 unsigned long flags
= ASN1_STRFLGS_RFC2253
| ASN1_STRFLGS_ESC_QUOTE
|
395 XN_FLAG_SEP_CPLUS_SPC
| XN_FLAG_FN_SN
;
398 return BIO_printf(bio
, " (no certificate)\n") > 0;
399 if (BIO_printf(bio
, " certificate\n") <= 0
400 || !X509_print_ex(bio
, cert
, flags
, ~X509_FLAG_NO_SUBJECT
))
402 if (X509_check_issued((X509
*)cert
, cert
) == X509_V_OK
) {
403 if (BIO_printf(bio
, " self-issued\n") <= 0)
406 if (BIO_printf(bio
, " ") <= 0
407 || !X509_print_ex(bio
, cert
, flags
, ~X509_FLAG_NO_ISSUER
))
410 if (!X509_print_ex(bio
, cert
, flags
,
411 ~(X509_FLAG_NO_SERIAL
| X509_FLAG_NO_VALIDITY
)))
413 if (X509_cmp_current_time(X509_get0_notBefore(cert
)) > 0)
414 if (BIO_printf(bio
, " not yet valid\n") <= 0)
416 if (X509_cmp_current_time(X509_get0_notAfter(cert
)) < 0)
417 if (BIO_printf(bio
, " no more valid\n") <= 0)
419 return X509_print_ex(bio
, cert
, flags
, ~(neg_cflags
));
422 static int print_certs(BIO
*bio
, const STACK_OF(X509
) *certs
)
426 if (certs
== NULL
|| sk_X509_num(certs
) <= 0)
427 return BIO_printf(bio
, " (no certificates)\n") >= 0;
429 for (i
= 0; i
< sk_X509_num(certs
); i
++) {
430 X509
*cert
= sk_X509_value(certs
, i
);
431 if (cert
!= NULL
&& !x509_print_ex_brief(bio
, cert
, 0))
437 static int print_store_certs(BIO
*bio
, X509_STORE
*store
)
440 STACK_OF(X509
) *certs
= X509_STORE_get1_all_certs(store
);
441 int ret
= print_certs(bio
, certs
);
443 sk_X509_pop_free(certs
, X509_free
);
446 return BIO_printf(bio
, " (no trusted store)\n") >= 0;
450 /* Extend the error queue with details on a failed cert verification */
451 int X509_STORE_CTX_print_verify_cb(int ok
, X509_STORE_CTX
*ctx
)
453 if (ok
== 0 && ctx
!= NULL
) {
454 int cert_error
= X509_STORE_CTX_get_error(ctx
);
455 BIO
*bio
= BIO_new(BIO_s_mem()); /* may be NULL */
457 BIO_printf(bio
, "%s at depth = %d error = %d (%s)\n",
458 X509_STORE_CTX_get0_parent_ctx(ctx
) != NULL
459 ? "CRL path validation"
460 : "Certificate verification",
461 X509_STORE_CTX_get_error_depth(ctx
),
462 cert_error
, X509_verify_cert_error_string(cert_error
));
464 X509_STORE
*ts
= X509_STORE_CTX_get0_store(ctx
);
465 X509_VERIFY_PARAM
*vpm
= X509_STORE_get0_param(ts
);
469 switch (cert_error
) {
470 case X509_V_ERR_HOSTNAME_MISMATCH
:
471 BIO_printf(bio
, "Expected hostname(s) = ");
472 while ((str
= X509_VERIFY_PARAM_get0_host(vpm
, idx
++)) != NULL
)
473 BIO_printf(bio
, "%s%s", idx
== 1 ? "" : ", ", str
);
474 BIO_printf(bio
, "\n");
476 case X509_V_ERR_EMAIL_MISMATCH
:
477 str
= X509_VERIFY_PARAM_get0_email(vpm
);
479 BIO_printf(bio
, "Expected email address = %s\n", str
);
481 case X509_V_ERR_IP_ADDRESS_MISMATCH
:
482 str
= X509_VERIFY_PARAM_get1_ip_asc(vpm
);
484 BIO_printf(bio
, "Expected IP address = %s\n", str
);
492 BIO_printf(bio
, "Failure for:\n");
493 x509_print_ex_brief(bio
, X509_STORE_CTX_get_current_cert(ctx
),
494 X509_FLAG_NO_EXTENSIONS
);
495 if (cert_error
== X509_V_ERR_CERT_UNTRUSTED
496 || cert_error
== X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
497 || cert_error
== X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
498 || cert_error
== X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
499 || cert_error
== X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
500 || cert_error
== X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
501 || cert_error
== X509_V_ERR_STORE_LOOKUP
) {
502 BIO_printf(bio
, "Non-trusted certs:\n");
503 print_certs(bio
, X509_STORE_CTX_get0_untrusted(ctx
));
504 BIO_printf(bio
, "Certs in trust store:\n");
505 print_store_certs(bio
, X509_STORE_CTX_get0_store(ctx
));
507 X509err(0, X509_R_CERTIFICATE_VERIFICATION_FAILED
);
508 ERR_add_error_mem_bio("\n", bio
);
513 * TODO we could check policies here too, e.g.:
514 * if (cert_error == X509_V_OK && ok == 2)
515 * policies_print(NULL, ctx);