X509_STORE_CTX_GET_ERROR(3ossl) OpenSSL X509_STORE_CTX_GET_ERROR(3ossl)
NAME
X509_STORE_CTX_get_error, X509_STORE_CTX_set_error,
X509_STORE_CTX_get_error_depth, X509_STORE_CTX_set_error_depth,
X509_STORE_CTX_get_current_cert, X509_STORE_CTX_set_current_cert,
X509_STORE_CTX_get0_cert, X509_STORE_CTX_get1_chain,
X509_verify_cert_error_string - get or set certificate verification
status information
SYNOPSIS
#include <openssl/x509.h>
int X509_STORE_CTX_get_error(const X509_STORE_CTX *ctx);
void X509_STORE_CTX_set_error(X509_STORE_CTX *ctx, int s);
int X509_STORE_CTX_get_error_depth(const X509_STORE_CTX *ctx);
void X509_STORE_CTX_set_error_depth(X509_STORE_CTX *ctx, int depth);
X509 *X509_STORE_CTX_get_current_cert(const X509_STORE_CTX *ctx);
void X509_STORE_CTX_set_current_cert(X509_STORE_CTX *ctx, X509 *x);
X509 *X509_STORE_CTX_get0_cert(const X509_STORE_CTX *ctx);
STACK_OF(X509) *X509_STORE_CTX_get1_chain(const X509_STORE_CTX *ctx);
const char *X509_verify_cert_error_string(long n);
DESCRIPTION
These functions are typically called after certificate or chain
verification using X509_verify_cert(3) or X509_STORE_CTX_verify(3) has
indicated an error or in a verification callback to determine the
nature of an error.
X509_STORE_CTX_get_error(3) returns the error code of ctx. See the
"ERROR CODES" section for a full description of all error codes. It
may return a code != X509_V_OK even if X509_verify_cert() did not
indicate an error, likely because a verification callback function has
waived the error.
X509_STORE_CTX_set_error() sets the error code of ctx to s. For example
it might be used in a verification callback to set an error based on
additional checks.
X509_STORE_CTX_get_error_depth() returns the depth of the error. This
is a nonnegative integer representing where in the certificate chain
the error occurred. If it is zero it occurred in the end entity
certificate, one if it is the certificate which signed the end entity
certificate and so on.
X509_STORE_CTX_set_error_depth() sets the error depth. This can be
used in combination with X509_STORE_CTX_set_error() to set the depth at
which an error condition was detected.
X509_STORE_CTX_get_current_cert() returns the current certificate in
ctx. If an error occurred, the current certificate will be the one that
is most closely related to the error, or possibly NULL if no such
certificate is relevant.
X509_STORE_CTX_set_current_cert() sets the certificate x in ctx which
caused the error. This value is not intended to remain valid for very
long, and remains owned by the caller. It may be examined by a
verification callback invoked to handle each error encountered during
chain verification and is no longer required after such a callback. If
a callback wishes the save the certificate for use after it returns, it
needs to increment its reference count via X509_up_ref(3). Once such a
saved certificate is no longer needed it can be freed with
X509_free(3).
X509_STORE_CTX_get0_cert() retrieves an internal pointer to the
certificate being verified by the ctx. It may be NULL if a raw public
key is being verified.
X509_STORE_CTX_get1_chain() returns a complete validate chain if a
previous verification is successful. Otherwise the returned chain may
be incomplete or invalid. The returned chain persists after the ctx
structure is freed. When it is no longer needed it should be free up
using:
OSSL_STACK_OF_X509_free(chain);
X509_verify_cert_error_string() returns a human readable error string
for verification error n.
RETURN VALUES
X509_STORE_CTX_get_error(3) returns X509_V_OK or an error code.
X509_STORE_CTX_get_error_depth() returns a nonnegative error depth.
X509_STORE_CTX_get_current_cert() returns the certificate which caused
the error or NULL if no certificate is relevant to the error.
X509_verify_cert_error_string() returns a human readable error string
for verification error n.
ERROR CODES
A list of error codes and messages is shown below. Some of the error
codes are defined but currently never returned: these are described as
"unused".
X509_V_OK: ok
The operation was successful.
X509_V_ERR_UNSPECIFIED: unspecified certificate verification error
Unspecified error; should not happen.
X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: unable to get issuer certificate
The issuer certificate of a locally looked up certificate could not
be found. This normally means the list of trusted certificates is
not complete. To allow any certificate (not only a self-signed
one) in the trust store to terminate the chain the
X509_V_FLAG_PARTIAL_CHAIN flag may be set.
X509_V_ERR_UNABLE_TO_GET_CRL: unable to get certificate CRL
The CRL of a certificate could not be found.
X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE: unable to decrypt
certificate's signature
The certificate signature could not be decrypted. This means that
the actual signature value could not be determined rather than it
not matching the expected value, this is only meaningful for RSA
keys.
X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE: unable to decrypt CRL's
signature
The CRL signature could not be decrypted: this means that the
actual signature value could not be determined rather than it not
matching the expected value. Unused.
X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY: unable to decode issuer
public key
The public key in the certificate "SubjectPublicKeyInfo" field
could not be read.
X509_V_ERR_CERT_SIGNATURE_FAILURE: certificate signature failure
The signature of the certificate is invalid.
X509_V_ERR_CRL_SIGNATURE_FAILURE: CRL signature failure
The signature of the CRL is invalid.
X509_V_ERR_CERT_NOT_YET_VALID: certificate is not yet valid
The certificate is not yet valid: the "notBefore" date is after the
current time.
X509_V_ERR_CERT_HAS_EXPIRED: certificate has expired
The certificate has expired: that is the "notAfter" date is before
the current time.
X509_V_ERR_CRL_NOT_YET_VALID: CRL is not yet valid
The CRL is not yet valid.
X509_V_ERR_CRL_HAS_EXPIRED: CRL has expired
The CRL has expired.
X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: format error in
certificate's notBefore field
The certificate "notBefore" field contains an invalid time.
X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: format error in certificate's
notAfter field
The certificate "notAfter" field contains an invalid time.
X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD: format error in CRL's
lastUpdate field
The CRL lastUpdate field contains an invalid time.
X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD: format error in CRL's
nextUpdate field
The CRL "nextUpdate" field contains an invalid time.
X509_V_ERR_OUT_OF_MEM: out of memory
An error occurred trying to allocate memory.
X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: self-signed certificate
The passed certificate is self-signed and the same certificate
cannot be found in the list of trusted certificates.
X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN: self-signed certificate in
certificate chain
The certificate chain could be built up using the untrusted
certificates but no suitable trust anchor (which typically is a
self-signed root certificate) could be found in the trust store.
X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: unable to get local
issuer certificate
The issuer certificate could not be found: this occurs if the
issuer certificate of an untrusted certificate cannot be found.
X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE: unable to verify the first
certificate
No signatures could be verified because the chain contains only one
certificate and it is not self-signed and the
X509_V_FLAG_PARTIAL_CHAIN flag is not set.
X509_V_ERR_CERT_CHAIN_TOO_LONG: certificate chain too long
The certificate chain length is greater than the supplied maximum
depth.
X509_V_ERR_CERT_REVOKED: certificate revoked
The certificate has been revoked.
X509_V_ERR_NO_ISSUER_PUBLIC_KEY: issuer certificate doesn't have a
public key
The issuer certificate does not have a public key.
X509_V_ERR_PATH_LENGTH_EXCEEDED: path length constraint exceeded
The basicConstraints path-length parameter has been exceeded.
X509_V_ERR_INVALID_PURPOSE: unsuitable certificate purpose
The target certificate cannot be used for the specified purpose.
X509_V_ERR_CERT_UNTRUSTED: certificate not trusted
The root CA is not marked as trusted for the specified purpose.
X509_V_ERR_CERT_REJECTED: certificate rejected
The root CA is marked to reject the specified purpose.
X509_V_ERR_SUBJECT_ISSUER_MISMATCH: subject issuer mismatch
The current candidate issuer certificate was rejected because its
subject name did not match the issuer name of the current
certificate.
X509_V_ERR_AKID_SKID_MISMATCH: authority and subject key identifier
mismatch
The current candidate issuer certificate was rejected because its
subject key identifier was present and did not match the authority
key identifier current certificate.
X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH: authority and issuer serial
number mismatch
The current candidate issuer certificate was rejected because its
issuer name and serial number was present and did not match the
authority key identifier of the current certificate.
X509_V_ERR_KEYUSAGE_NO_CERTSIGN: key usage does not include certificate
signing
The current candidate issuer certificate was rejected because its
"keyUsage" extension does not permit certificate signing.
X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER: unable to get CRL issuer
certificate
Unable to get CRL issuer certificate.
X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION: unhandled critical extension
Unhandled critical extension.
X509_V_ERR_KEYUSAGE_NO_CRL_SIGN: key usage does not include CRL signing
Key usage does not include CRL signing.
X509_V_ERR_UNHANDLED_CRITICAL_CRL_EXTENSION: unhandled critical CRL
extension
Unhandled critical CRL extension.
X509_V_ERR_INVALID_NON_CA: invalid non-CA certificate (has CA markings)
Invalid non-CA certificate has CA markings.
X509_V_ERR_PROXY_PATH_LENGTH_EXCEEDED: proxy path length constraint
exceeded
Proxy path length constraint exceeded.
X509_V_ERR_KEYUSAGE_NO_DIGITAL_SIGNATURE: key usage does not include
digital signature
Key usage does not include digital signature, and therefore cannot
sign certificates.
X509_V_ERR_PROXY_CERTIFICATES_NOT_ALLOWED: proxy certificates not
allowed, please set the appropriate flag
Proxy certificates not allowed unless the
X509_V_FLAG_ALLOW_PROXY_CERTS flag is set.
X509_V_ERR_INVALID_EXTENSION: invalid or inconsistent certificate
extension
A certificate extension had an invalid value (for example an
incorrect encoding) or some value inconsistent with other
extensions.
X509_V_ERR_INVALID_POLICY_EXTENSION: invalid or inconsistent
certificate policy extension
A certificate policies extension had an invalid value (for example
an incorrect encoding) or some value inconsistent with other
extensions. This error only occurs if policy processing is enabled.
X509_V_ERR_NO_EXPLICIT_POLICY: no explicit policy
The verification flags were set to require and explicit policy but
none was present.
X509_V_ERR_DIFFERENT_CRL_SCOPE: different CRL scope
The only CRLs that could be found did not match the scope of the
certificate.
X509_V_ERR_UNSUPPORTED_EXTENSION_FEATURE: unsupported extension feature
Some feature of a certificate extension is not supported. Unused.
X509_V_ERR_UNNESTED_RESOURCE: RFC 3779 resource not subset of parent's
resources
See RFC 3779 for details.
X509_V_ERR_PERMITTED_VIOLATION: permitted subtree violation
A name constraint violation occurred in the permitted subtrees.
X509_V_ERR_EXCLUDED_VIOLATION: excluded subtree violation
A name constraint violation occurred in the excluded subtrees.
X509_V_ERR_SUBTREE_MINMAX: name constraints minimum and maximum not
supported
A certificate name constraints extension included a minimum or
maximum field: this is not supported.
X509_V_ERR_APPLICATION_VERIFICATION: application verification failure
An application specific error. This will never be returned unless
explicitly set by an application callback.
X509_V_ERR_UNSUPPORTED_CONSTRAINT_TYPE: unsupported name constraint
type
An unsupported name constraint type was encountered. OpenSSL
currently only supports directory name, DNS name, email and URI
types.
X509_V_ERR_UNSUPPORTED_CONSTRAINT_SYNTAX: unsupported or invalid name
constraint syntax
The format of the name constraint is not recognised: for example an
email address format of a form not mentioned in RFC3280. This could
be caused by a garbage extension or some new feature not currently
supported.
X509_V_ERR_UNSUPPORTED_NAME_SYNTAX: unsupported or invalid name syntax
Unsupported or invalid name syntax.
X509_V_ERR_CRL_PATH_VALIDATION_ERROR: CRL path validation error
An error occurred when attempting to verify the CRL path. This
error can only happen if extended CRL checking is enabled.
X509_V_ERR_PATH_LOOP: path loop
Path loop.
X509_V_ERR_HOSTNAME_MISMATCH: hostname mismatch
Hostname mismatch.
X509_V_ERR_EMAIL_MISMATCH: email address mismatch
Email address mismatch.
X509_V_ERR_IP_ADDRESS_MISMATCH: IP address mismatch
IP address mismatch.
X509_V_ERR_DANE_NO_MATCH: no matching DANE TLSA records
DANE TLSA authentication is enabled, but no TLSA records matched
the certificate chain. This error is only possible in
openssl-s_client(1).
X509_V_ERR_EE_KEY_TOO_SMALL: EE certificate key too weak
EE certificate key too weak.
X509_V_ERR_CA_KEY_TOO_SMALL: CA certificate key too weak
CA certificate key too weak.
X509_V_ERR_CA_MD_TOO_WEAK: CA signature digest algorithm too weak
CA signature digest algorithm too weak.
X509_V_ERR_INVALID_CALL: invalid certificate verification context
Invalid certificate verification context.
X509_V_ERR_STORE_LOOKUP: issuer certificate lookup error
Issuer certificate lookup error.
X509_V_ERR_NO_VALID_SCTS: certificate transparency required, but no
valid SCTs found
Certificate Transparency required, but no valid SCTs found.
X509_V_ERR_PROXY_SUBJECT_NAME_VIOLATION: proxy subject name violation
Proxy subject name violation.
X509_V_ERR_OCSP_VERIFY_NEEDED: OCSP verification needed
Returned by the verify callback to indicate an OCSP verification is
needed.
X509_V_ERR_OCSP_VERIFY_FAILED: OCSP verification failed
Returned by the verify callback to indicate OCSP verification
failed.
X509_V_ERR_OCSP_CERT_UNKNOWN: OCSP unknown cert
Returned by the verify callback to indicate that the certificate is
not recognized by the OCSP responder.
X509_V_ERR_UNSUPPORTED_SIGNATURE_ALGORITHM: unsupported signature
algorithm
Cannot find certificate signature algorithm.
X509_V_ERR_SIGNATURE_ALGORITHM_MISMATCH: subject signature algorithm
and issuer public key algorithm mismatch
The issuer's public key is not of the type required by the
signature in the subject's certificate.
X509_V_ERR_SIGNATURE_ALGORITHM_INCONSISTENCY: cert info signature and
signature algorithm mismatch
The algorithm given in the certificate info is inconsistent
with the one used for the certificate signature.
X509_V_ERR_INVALID_CA: invalid CA certificate
A CA certificate is invalid. Either it is not a CA or its
extensions are not consistent with the supplied purpose.
X509_V_ERR_RPK_UNTRUSTED: raw public key untrusted, no trusted keys
configured
No TLS records were configured to validate the raw public key, or
DANE was not enabled on the connection.
NOTES
The above functions should be used instead of directly referencing the
fields in the X509_VERIFY_CTX structure.
In versions of OpenSSL before 1.0 the current certificate returned by
X509_STORE_CTX_get_current_cert() was never NULL. Applications should
check the return value before printing out any debugging information
relating to the current certificate.
If an unrecognised error code is passed to
X509_verify_cert_error_string() the numerical value of the unknown code
is returned in a static buffer. This is not thread safe but will never
happen unless an invalid code is passed.
BUGS
Previous versions of this documentation swapped the meaning of the
X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT and
X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY error codes.
SEE ALSO
X509_verify_cert(3), X509_STORE_CTX_verify(3), X509_up_ref(3),
X509_free(3).
COPYRIGHT
Copyright 2009-2023 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
<https://www.openssl.org/source/license.html>.
3.2.0 2023-11-23 X509_STORE_CTX_GET_ERROR(3ossl)
openssl 3.2.0 - Generated Wed Nov 29 13:57:35 CST 2023