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Add public API to query SubjectAltNames and ExtKeyUsage extensions

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This commit is contained in:
Hanno Becker 2019-02-27 17:33:14 +00:00
parent 63e6998dd7
commit ab6c8ea8bc
2 changed files with 96 additions and 0 deletions
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50
include/mbedtls/x509_crt.h
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@ -750,6 +750,56 @@ int mbedtls_x509_crt_get_subject( mbedtls_x509_crt const *crt,
int mbedtls_x509_crt_get_issuer( mbedtls_x509_crt const *crt,
mbedtls_x509_name **issuer );
/**
* \brief Request the subject alternative name of a CRT, presented
* as a dynamically allocated linked list.
*
* \param crt The CRT to use. This must be initialized and setup.
* \param subj_alt The address at which to store the address of the
* first component of the subject alternative names list.
*
* \note Depending in your use case, consider using the raw ASN.1
* describing the subject alternative names extension
* instead of the heap-allocated linked list generated by this
* call. The pointers to the raw ASN.1 data are part of the CRT
* frame that can be queried via mbedtls_x509_crt_get_frame(),
* and mbedtls_asn1_traverse_sequence_of() can be used to
* traverse the list of subject alternative names.
*
* \return \c 0 on success. In this case, the user takes ownership
* of the name context, and is responsible for freeing it
* through a call to mbedtls_x509_sequence_free() once it's
* no longer needed.
* \return A negative error code on failure.
*/
int mbedtls_x509_crt_get_subject_alt_names( mbedtls_x509_crt const *crt,
mbedtls_x509_sequence **subj_alt );
/**
* \brief Request the ExtendedKeyUsage extension of a CRT,
* presented as a dynamically allocated linked list.
*
* \param crt The CRT to use. This must be initialized and setup.
* \param ext_key_usage The address at which to store the address of the
* first entry of the ExtendedKeyUsage extension.
*
* \note Depending in your use case, consider using the raw ASN.1
* describing the extended key usage extension instead of
* the heap-allocated linked list generated by this call.
* The pointers to the raw ASN.1 data are part of the CRT
* frame that can be queried via mbedtls_x509_crt_get_frame(),
* and mbedtls_asn1_traverse_sequence_of() can be used to
* traverse the entries in the extended key usage extension.
*
* \return \c 0 on success. In this case, the user takes ownership
* of the name context, and is responsible for freeing it
* through a call to mbedtls_x509_sequence_free() once it's
* no longer needed.
* \return A negative error code on failure.
*/
int mbedtls_x509_crt_get_ext_key_usage( mbedtls_x509_crt const *crt,
mbedtls_x509_sequence **ext_key_usage );
/**
* \brief Flush internal X.509 CRT parsing cache, if present.
*