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Merge pull request #8844 from davidhorstmann-arm/restore-x509-functions-to-public

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Restore some X509 functions to public headers
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Manuel Pégourié-Gonnard 2024-02-27 10:55:16 +00:00 committed by GitHub
commit 5b5faf0898
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2 changed files with 142 additions and 127 deletions
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142
include/mbedtls/x509.h
View file

@ -322,8 +322,150 @@ mbedtls_x509_san_list;
*/
int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn);
/**
* \brief Convert the certificate DN string \p name into
* a linked list of mbedtls_x509_name (equivalent to
* mbedtls_asn1_named_data).
*
* \note This function allocates a linked list, and places the head
* pointer in \p head. This list must later be freed by a
* call to mbedtls_asn1_free_named_data_list().
*
* \param[out] head Address in which to store the pointer to the head of the
* allocated list of mbedtls_x509_name
* \param[in] name The string representation of a DN to convert
*
* \return 0 on success, or a negative error code.
*/
int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name);
/**
* \brief Return the next relative DN in an X509 name.
*
* \note Intended use is to compare function result to dn->next
* in order to detect boundaries of multi-valued RDNs.
*
* \param dn Current node in the X509 name
*
* \return Pointer to the first attribute-value pair of the
* next RDN in sequence, or NULL if end is reached.
*/
static inline mbedtls_x509_name *mbedtls_x509_dn_get_next(
mbedtls_x509_name *dn)
{
while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) {
dn = dn->next;
}
return dn->next;
}
/**
* \brief Store the certificate serial in printable form into buf;
* no more than size characters will be written.
*
* \param buf Buffer to write to
* \param size Maximum size of buffer
* \param serial The X509 serial to represent
*
* \return The length of the string written (not including the
* terminated nul byte), or a negative error code.
*/
int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
/**
* \brief Compare pair of mbedtls_x509_time.
*
* \param t1 mbedtls_x509_time to compare
* \param t2 mbedtls_x509_time to compare
*
* \return < 0 if t1 is before t2
* 0 if t1 equals t2
* > 0 if t1 is after t2
*/
int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2);
#if defined(MBEDTLS_HAVE_TIME_DATE)
/**
* \brief Fill mbedtls_x509_time with provided mbedtls_time_t.
*
* \param tt mbedtls_time_t to convert
* \param now mbedtls_x509_time to fill with converted mbedtls_time_t
*
* \return \c 0 on success
* \return A non-zero return value on failure.
*/
int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now);
#endif /* MBEDTLS_HAVE_TIME_DATE */
/**
* \brief Check a given mbedtls_x509_time against the system time
* and tell if it's in the past.
*
* \note Intended usage is "if( is_past( valid_to ) ) ERROR".
* Hence the return value of 1 if on internal errors.
*
* \param to mbedtls_x509_time to check
*
* \return 1 if the given time is in the past or an error occurred,
* 0 otherwise.
*/
int mbedtls_x509_time_is_past(const mbedtls_x509_time *to);
/**
* \brief Check a given mbedtls_x509_time against the system time
* and tell if it's in the future.
*
* \note Intended usage is "if( is_future( valid_from ) ) ERROR".
* Hence the return value of 1 if on internal errors.
*
* \param from mbedtls_x509_time to check
*
* \return 1 if the given time is in the future or an error occurred,
* 0 otherwise.
*/
int mbedtls_x509_time_is_future(const mbedtls_x509_time *from);
/**
* \brief This function parses an item in the SubjectAlternativeNames
* extension. Please note that this function might allocate
* additional memory for a subject alternative name, thus
* mbedtls_x509_free_subject_alt_name has to be called
* to dispose of this additional memory afterwards.
*
* \param san_buf The buffer holding the raw data item of the subject
* alternative name.
* \param san The target structure to populate with the parsed presentation
* of the subject alternative name encoded in \p san_buf.
*
* \note Supported GeneralName types, as defined in RFC 5280:
* "rfc822Name", "dnsName", "directoryName",
* "uniformResourceIdentifier" and "hardware_module_name"
* of type "otherName", as defined in RFC 4108.
*
* \note This function should be called on a single raw data of
* subject alternative name. For example, after successful
* certificate parsing, one must iterate on every item in the
* \c crt->subject_alt_names sequence, and pass it to
* this function.
*
* \warning The target structure contains pointers to the raw data of the
* parsed certificate, and its lifetime is restricted by the
* lifetime of the certificate.
*
* \return \c 0 on success
* \return #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported
* SAN type.
* \return Another negative value for any other failure.
*/
int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf,
mbedtls_x509_subject_alternative_name *san);
/**
* \brief Unallocate all data related to subject alternative name
*
* \param san SAN structure - extra memory owned by this structure will be freed
*/
void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san);
/**
* \brief This function parses a CN string as an IP address.
*

127
library/x509_internal.h
View file

@ -21,133 +21,6 @@
#include "mbedtls/rsa.h"
#endif
/**
* \brief Return the next relative DN in an X509 name.
*
* \note Intended use is to compare function result to dn->next
* in order to detect boundaries of multi-valued RDNs.
*
* \param dn Current node in the X509 name
*
* \return Pointer to the first attribute-value pair of the
* next RDN in sequence, or NULL if end is reached.
*/
static inline mbedtls_x509_name *mbedtls_x509_dn_get_next(
mbedtls_x509_name *dn)
{
while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) {
dn = dn->next;
}
return dn->next;
}
/**
* \brief Store the certificate serial in printable form into buf;
* no more than size characters will be written.
*
* \param buf Buffer to write to
* \param size Maximum size of buffer
* \param serial The X509 serial to represent
*
* \return The length of the string written (not including the
* terminated nul byte), or a negative error code.
*/
int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
/**
* \brief Compare pair of mbedtls_x509_time.
*
* \param t1 mbedtls_x509_time to compare
* \param t2 mbedtls_x509_time to compare
*
* \return < 0 if t1 is before t2
* 0 if t1 equals t2
* > 0 if t1 is after t2
*/
int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2);
#if defined(MBEDTLS_HAVE_TIME_DATE)
/**
* \brief Fill mbedtls_x509_time with provided mbedtls_time_t.
*
* \param tt mbedtls_time_t to convert
* \param now mbedtls_x509_time to fill with converted mbedtls_time_t
*
* \return \c 0 on success
* \return A non-zero return value on failure.
*/
int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now);
#endif /* MBEDTLS_HAVE_TIME_DATE */
/**
* \brief Check a given mbedtls_x509_time against the system time
* and tell if it's in the past.
*
* \note Intended usage is "if( is_past( valid_to ) ) ERROR".
* Hence the return value of 1 if on internal errors.
*
* \param to mbedtls_x509_time to check
*
* \return 1 if the given time is in the past or an error occurred,
* 0 otherwise.
*/
int mbedtls_x509_time_is_past(const mbedtls_x509_time *to);
/**
* \brief Check a given mbedtls_x509_time against the system time
* and tell if it's in the future.
*
* \note Intended usage is "if( is_future( valid_from ) ) ERROR".
* Hence the return value of 1 if on internal errors.
*
* \param from mbedtls_x509_time to check
*
* \return 1 if the given time is in the future or an error occurred,
* 0 otherwise.
*/
int mbedtls_x509_time_is_future(const mbedtls_x509_time *from);
/**
* \brief This function parses an item in the SubjectAlternativeNames
* extension. Please note that this function might allocate
* additional memory for a subject alternative name, thus
* mbedtls_x509_free_subject_alt_name has to be called
* to dispose of this additional memory afterwards.
*
* \param san_buf The buffer holding the raw data item of the subject
* alternative name.
* \param san The target structure to populate with the parsed presentation
* of the subject alternative name encoded in \p san_buf.
*
* \note Supported GeneralName types, as defined in RFC 5280:
* "rfc822Name", "dnsName", "directoryName",
* "uniformResourceIdentifier" and "hardware_module_name"
* of type "otherName", as defined in RFC 4108.
*
* \note This function should be called on a single raw data of
* subject alternative name. For example, after successful
* certificate parsing, one must iterate on every item in the
* \c crt->subject_alt_names sequence, and pass it to
* this function.
*
* \warning The target structure contains pointers to the raw data of the
* parsed certificate, and its lifetime is restricted by the
* lifetime of the certificate.
*
* \return \c 0 on success
* \return #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported
* SAN type.
* \return Another negative value for any other failure.
*/
int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf,
mbedtls_x509_subject_alternative_name *san);
/**
* \brief Unallocate all data related to subject alternative name
*
* \param san SAN structure - extra memory owned by this structure will be freed
*/
void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san);
int mbedtls_x509_get_name(unsigned char **p, const unsigned char *end,
mbedtls_x509_name *cur);
int mbedtls_x509_get_alg_null(unsigned char **p, const unsigned char *end,