refactor: Finish support and testing for mbedtls

1 files changed, 0 insertions, 550 deletions

diff --git a/vendor/mbedtls/x509.h b/vendor/mbedtls/x509.h
deleted file mode 100644
index e2e0667..0000000
--- a/vendor/mbedtls/x509.h
+++ /dev/null
@@ -1,550 +0,0 @@
-/**
- * \file x509.h
- *
- * \brief X.509 generic defines and structures
- */
-/*
- *  Copyright The Mbed TLS Contributors
- *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
- */
-#ifndef MBEDTLS_X509_H
-#define MBEDTLS_X509_H
-#include "mbedtls/private_access.h"
-
-#include "mbedtls/build_info.h"
-
-#include "mbedtls/asn1.h"
-#include "mbedtls/pk.h"
-
-#if defined(MBEDTLS_RSA_C)
-#include "mbedtls/rsa.h"
-#endif
-
-/**
- * \addtogroup x509_module
- * \{
- */
-
-#if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
-/**
- * Maximum number of intermediate CAs in a verification chain.
- * That is, maximum length of the chain, excluding the end-entity certificate
- * and the trusted root certificate.
- *
- * Set this to a low value to prevent an adversary from making you waste
- * resources verifying an overlong certificate chain.
- */
-#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8
-#endif
-
-/**
- * \name X509 Error codes
- * \{
- */
-/** Unavailable feature, e.g. RSA hashing/encryption combination. */
-#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE              -0x2080
-/** Requested OID is unknown. */
-#define MBEDTLS_ERR_X509_UNKNOWN_OID                      -0x2100
-/** The CRT/CRL/CSR format is invalid, e.g. different type expected. */
-#define MBEDTLS_ERR_X509_INVALID_FORMAT                   -0x2180
-/** The CRT/CRL/CSR version element is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_VERSION                  -0x2200
-/** The serial tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_SERIAL                   -0x2280
-/** The algorithm tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_ALG                      -0x2300
-/** The name tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_NAME                     -0x2380
-/** The date tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_DATE                     -0x2400
-/** The signature tag or value invalid. */
-#define MBEDTLS_ERR_X509_INVALID_SIGNATURE                -0x2480
-/** The extension tag or value is invalid. */
-#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS               -0x2500
-/** CRT/CRL/CSR has an unsupported version number. */
-#define MBEDTLS_ERR_X509_UNKNOWN_VERSION                  -0x2580
-/** Signature algorithm (oid) is unsupported. */
-#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG                  -0x2600
-/** Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */
-#define MBEDTLS_ERR_X509_SIG_MISMATCH                     -0x2680
-/** Certificate verification failed, e.g. CRL, CA or signature check failed. */
-#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED               -0x2700
-/** Format not recognized as DER or PEM. */
-#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT              -0x2780
-/** Input invalid. */
-#define MBEDTLS_ERR_X509_BAD_INPUT_DATA                   -0x2800
-/** Allocation of memory failed. */
-#define MBEDTLS_ERR_X509_ALLOC_FAILED                     -0x2880
-/** Read/write of file failed. */
-#define MBEDTLS_ERR_X509_FILE_IO_ERROR                    -0x2900
-/** Destination buffer is too small. */
-#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL                 -0x2980
-/** A fatal error occurred, eg the chain is too long or the vrfy callback failed. */
-#define MBEDTLS_ERR_X509_FATAL_ERROR                      -0x3000
-/** \} name X509 Error codes */
-
-/**
- * \name X509 Verify codes
- * \{
- */
-/* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */
-#define MBEDTLS_X509_BADCERT_EXPIRED             0x01  /**< The certificate validity has expired. */
-#define MBEDTLS_X509_BADCERT_REVOKED             0x02  /**< The certificate has been revoked (is on a CRL). */
-#define MBEDTLS_X509_BADCERT_CN_MISMATCH         0x04  /**< The certificate Common Name (CN) does not match with the expected CN. */
-#define MBEDTLS_X509_BADCERT_NOT_TRUSTED         0x08  /**< The certificate is not correctly signed by the trusted CA. */
-#define MBEDTLS_X509_BADCRL_NOT_TRUSTED          0x10  /**< The CRL is not correctly signed by the trusted CA. */
-#define MBEDTLS_X509_BADCRL_EXPIRED              0x20  /**< The CRL is expired. */
-#define MBEDTLS_X509_BADCERT_MISSING             0x40  /**< Certificate was missing. */
-#define MBEDTLS_X509_BADCERT_SKIP_VERIFY         0x80  /**< Certificate verification was skipped. */
-#define MBEDTLS_X509_BADCERT_OTHER             0x0100  /**< Other reason (can be used by verify callback) */
-#define MBEDTLS_X509_BADCERT_FUTURE            0x0200  /**< The certificate validity starts in the future. */
-#define MBEDTLS_X509_BADCRL_FUTURE             0x0400  /**< The CRL is from the future */
-#define MBEDTLS_X509_BADCERT_KEY_USAGE         0x0800  /**< Usage does not match the keyUsage extension. */
-#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE     0x1000  /**< Usage does not match the extendedKeyUsage extension. */
-#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE      0x2000  /**< Usage does not match the nsCertType extension. */
-#define MBEDTLS_X509_BADCERT_BAD_MD            0x4000  /**< The certificate is signed with an unacceptable hash. */
-#define MBEDTLS_X509_BADCERT_BAD_PK            0x8000  /**< The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). */
-#define MBEDTLS_X509_BADCERT_BAD_KEY         0x010000  /**< The certificate is signed with an unacceptable key (eg bad curve, RSA too short). */
-#define MBEDTLS_X509_BADCRL_BAD_MD           0x020000  /**< The CRL is signed with an unacceptable hash. */
-#define MBEDTLS_X509_BADCRL_BAD_PK           0x040000  /**< The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA). */
-#define MBEDTLS_X509_BADCRL_BAD_KEY          0x080000  /**< The CRL is signed with an unacceptable key (eg bad curve, RSA too short). */
-
-/** \} name X509 Verify codes */
-/** \} addtogroup x509_module */
-
-/*
- * X.509 v3 Subject Alternative Name types.
- *      otherName                       [0]     OtherName,
- *      rfc822Name                      [1]     IA5String,
- *      dNSName                         [2]     IA5String,
- *      x400Address                     [3]     ORAddress,
- *      directoryName                   [4]     Name,
- *      ediPartyName                    [5]     EDIPartyName,
- *      uniformResourceIdentifier       [6]     IA5String,
- *      iPAddress                       [7]     OCTET STRING,
- *      registeredID                    [8]     OBJECT IDENTIFIER
- */
-#define MBEDTLS_X509_SAN_OTHER_NAME                      0
-#define MBEDTLS_X509_SAN_RFC822_NAME                     1
-#define MBEDTLS_X509_SAN_DNS_NAME                        2
-#define MBEDTLS_X509_SAN_X400_ADDRESS_NAME               3
-#define MBEDTLS_X509_SAN_DIRECTORY_NAME                  4
-#define MBEDTLS_X509_SAN_EDI_PARTY_NAME                  5
-#define MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER     6
-#define MBEDTLS_X509_SAN_IP_ADDRESS                      7
-#define MBEDTLS_X509_SAN_REGISTERED_ID                   8
-
-/*
- * X.509 v3 Key Usage Extension flags
- * Reminder: update mbedtls_x509_info_key_usage() when adding new flags.
- */
-#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE            (0x80)  /* bit 0 */
-#define MBEDTLS_X509_KU_NON_REPUDIATION              (0x40)  /* bit 1 */
-#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT             (0x20)  /* bit 2 */
-#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT            (0x10)  /* bit 3 */
-#define MBEDTLS_X509_KU_KEY_AGREEMENT                (0x08)  /* bit 4 */
-#define MBEDTLS_X509_KU_KEY_CERT_SIGN                (0x04)  /* bit 5 */
-#define MBEDTLS_X509_KU_CRL_SIGN                     (0x02)  /* bit 6 */
-#define MBEDTLS_X509_KU_ENCIPHER_ONLY                (0x01)  /* bit 7 */
-#define MBEDTLS_X509_KU_DECIPHER_ONLY              (0x8000)  /* bit 8 */
-
-/*
- * Netscape certificate types
- * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
- */
-
-#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT         (0x80)  /* bit 0 */
-#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER         (0x40)  /* bit 1 */
-#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL              (0x20)  /* bit 2 */
-#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING     (0x10)  /* bit 3 */
-#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED           (0x08)  /* bit 4 */
-#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA             (0x04)  /* bit 5 */
-#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA           (0x02)  /* bit 6 */
-#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA  (0x01)  /* bit 7 */
-
-/*
- * X.509 extension types
- *
- * Comments refer to the status for using certificates. Status can be
- * different for writing certificates or reading CRLs or CSRs.
- *
- * Those are defined in oid.h as oid.c needs them in a data structure. Since
- * these were previously defined here, let's have aliases for compatibility.
- */
-#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER MBEDTLS_OID_X509_EXT_AUTHORITY_KEY_IDENTIFIER
-#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER   MBEDTLS_OID_X509_EXT_SUBJECT_KEY_IDENTIFIER
-#define MBEDTLS_X509_EXT_KEY_USAGE                MBEDTLS_OID_X509_EXT_KEY_USAGE
-#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES     MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES
-#define MBEDTLS_X509_EXT_POLICY_MAPPINGS          MBEDTLS_OID_X509_EXT_POLICY_MAPPINGS
-#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME         MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME         /* Supported (DNS) */
-#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME          MBEDTLS_OID_X509_EXT_ISSUER_ALT_NAME
-#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS  MBEDTLS_OID_X509_EXT_SUBJECT_DIRECTORY_ATTRS
-#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS        MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS        /* Supported */
-#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS         MBEDTLS_OID_X509_EXT_NAME_CONSTRAINTS
-#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS       MBEDTLS_OID_X509_EXT_POLICY_CONSTRAINTS
-#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE       MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE
-#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS  MBEDTLS_OID_X509_EXT_CRL_DISTRIBUTION_POINTS
-#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY       MBEDTLS_OID_X509_EXT_INIHIBIT_ANYPOLICY
-#define MBEDTLS_X509_EXT_FRESHEST_CRL             MBEDTLS_OID_X509_EXT_FRESHEST_CRL
-#define MBEDTLS_X509_EXT_NS_CERT_TYPE             MBEDTLS_OID_X509_EXT_NS_CERT_TYPE
-
-/*
- * Storage format identifiers
- * Recognized formats: PEM and DER
- */
-#define MBEDTLS_X509_FORMAT_DER                 1
-#define MBEDTLS_X509_FORMAT_PEM                 2
-
-#define MBEDTLS_X509_MAX_DN_NAME_SIZE         256 /**< Maximum value size of a DN entry */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * \addtogroup x509_module
- * \{ */
-
-/**
- * \name Structures for parsing X.509 certificates, CRLs and CSRs
- * \{
- */
-
-/**
- * Type-length-value structure that allows for ASN1 using DER.
- */
-typedef mbedtls_asn1_buf mbedtls_x509_buf;
-
-/**
- * Container for ASN1 bit strings.
- */
-typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring;
-
-/**
- * Container for ASN1 named information objects.
- * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.).
- */
-typedef mbedtls_asn1_named_data mbedtls_x509_name;
-
-/**
- * Container for a sequence of ASN.1 items
- */
-typedef mbedtls_asn1_sequence mbedtls_x509_sequence;
-
-/*
- * Container for the fields of the Authority Key Identifier object
- */
-typedef struct mbedtls_x509_authority {
-    mbedtls_x509_buf keyIdentifier;
-    mbedtls_x509_sequence authorityCertIssuer;
-    mbedtls_x509_buf authorityCertSerialNumber;
-    mbedtls_x509_buf raw;
-}
-mbedtls_x509_authority;
-
-/** Container for date and time (precision in seconds). */
-typedef struct mbedtls_x509_time {
-    int year, mon, day;         /**< Date. */
-    int hour, min, sec;         /**< Time. */
-}
-mbedtls_x509_time;
-
-/**
- * From RFC 5280 section 4.2.1.6:
- * OtherName ::= SEQUENCE {
- *      type-id    OBJECT IDENTIFIER,
- *      value      [0] EXPLICIT ANY DEFINED BY type-id }
- *
- * Future versions of the library may add new fields to this structure or
- * to its embedded union and structure.
- */
-typedef struct mbedtls_x509_san_other_name {
-    /**
-     * The type_id is an OID as defined in RFC 5280.
-     * To check the value of the type id, you should use
-     * \p MBEDTLS_OID_CMP with a known OID mbedtls_x509_buf.
-     */
-    mbedtls_x509_buf type_id;                   /**< The type id. */
-    union {
-        /**
-         * From RFC 4108 section 5:
-         * HardwareModuleName ::= SEQUENCE {
-         *                         hwType OBJECT IDENTIFIER,
-         *                         hwSerialNum OCTET STRING }
-         */
-        struct {
-            mbedtls_x509_buf oid;               /**< The object identifier. */
-            mbedtls_x509_buf val;               /**< The named value. */
-        }
-        hardware_module_name;
-    }
-    value;
-}
-mbedtls_x509_san_other_name;
-
-/**
- * A structure for holding the parsed Subject Alternative Name,
- * according to type.
- *
- * Future versions of the library may add new fields to this structure or
- * to its embedded union and structure.
- */
-typedef struct mbedtls_x509_subject_alternative_name {
-    int type;                              /**< The SAN type, value of MBEDTLS_X509_SAN_XXX. */
-    union {
-        mbedtls_x509_san_other_name other_name;
-        mbedtls_x509_name directory_name;
-        mbedtls_x509_buf unstructured_name; /**< The buffer for the unstructured types. rfc822Name, dnsName and uniformResourceIdentifier are currently supported. */
-    }
-    san; /**< A union of the supported SAN types */
-}
-mbedtls_x509_subject_alternative_name;
-
-typedef struct mbedtls_x509_san_list {
-    mbedtls_x509_subject_alternative_name node;
-    struct mbedtls_x509_san_list *next;
-}
-mbedtls_x509_san_list;
-
-/** \} name Structures for parsing X.509 certificates, CRLs and CSRs */
-
-/**
- * \brief          Store the certificate DN 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 dn       The X509 name to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn);
-
-/**
- * \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);
-
-/** \} addtogroup x509_module */
-
-/*
- * Internal module functions. You probably do not want to use these unless you
- * know you do.
- */
-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,
-                              mbedtls_x509_buf *alg);
-int mbedtls_x509_get_alg(unsigned char **p, const unsigned char *end,
-                         mbedtls_x509_buf *alg, mbedtls_x509_buf *params);
-#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
-int mbedtls_x509_get_rsassa_pss_params(const mbedtls_x509_buf *params,
-                                       mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
-                                       int *salt_len);
-#endif
-int mbedtls_x509_get_sig(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig);
-int mbedtls_x509_get_sig_alg(const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
-                             mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
-                             void **sig_opts);
-int mbedtls_x509_get_time(unsigned char **p, const unsigned char *end,
-                          mbedtls_x509_time *t);
-int mbedtls_x509_get_serial(unsigned char **p, const unsigned char *end,
-                            mbedtls_x509_buf *serial);
-int mbedtls_x509_get_ext(unsigned char **p, const unsigned char *end,
-                         mbedtls_x509_buf *ext, int tag);
-#if !defined(MBEDTLS_X509_REMOVE_INFO)
-int mbedtls_x509_sig_alg_gets(char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
-                              mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
-                              const void *sig_opts);
-#endif
-int mbedtls_x509_key_size_helper(char *buf, size_t buf_size, const char *name);
-int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name);
-int mbedtls_x509_set_extension(mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
-                               int critical, const unsigned char *val,
-                               size_t val_len);
-int mbedtls_x509_write_extensions(unsigned char **p, unsigned char *start,
-                                  mbedtls_asn1_named_data *first);
-int mbedtls_x509_write_names(unsigned char **p, unsigned char *start,
-                             mbedtls_asn1_named_data *first);
-int mbedtls_x509_write_sig(unsigned char **p, unsigned char *start,
-                           const char *oid, size_t oid_len,
-                           unsigned char *sig, size_t size,
-                           mbedtls_pk_type_t pk_alg);
-int mbedtls_x509_get_ns_cert_type(unsigned char **p,
-                                  const unsigned char *end,
-                                  unsigned char *ns_cert_type);
-int mbedtls_x509_get_key_usage(unsigned char **p,
-                               const unsigned char *end,
-                               unsigned int *key_usage);
-int mbedtls_x509_get_subject_alt_name(unsigned char **p,
-                                      const unsigned char *end,
-                                      mbedtls_x509_sequence *subject_alt_name);
-int mbedtls_x509_get_subject_alt_name_ext(unsigned char **p,
-                                          const unsigned char *end,
-                                          mbedtls_x509_sequence *subject_alt_name);
-int mbedtls_x509_info_subject_alt_name(char **buf, size_t *size,
-                                       const mbedtls_x509_sequence
-                                       *subject_alt_name,
-                                       const char *prefix);
-int mbedtls_x509_info_cert_type(char **buf, size_t *size,
-                                unsigned char ns_cert_type);
-int mbedtls_x509_info_key_usage(char **buf, size_t *size,
-                                unsigned int key_usage);
-
-int mbedtls_x509_write_set_san_common(mbedtls_asn1_named_data **extensions,
-                                      const mbedtls_x509_san_list *san_list);
-
-/**
- * \brief          This function parses a CN string as an IP address.
- *
- * \param cn       The CN string to parse. CN string MUST be null-terminated.
- * \param dst      The target buffer to populate with the binary IP address.
- *                 The buffer MUST be 16 bytes to save IPv6, and should be
- *                 4-byte aligned if the result will be used as struct in_addr.
- *                 e.g. uint32_t dst[4]
- *
- * \note           \p cn is parsed as an IPv6 address if string contains ':',
- *                 else \p cn is parsed as an IPv4 address.
- *
- * \return         Length of binary IP address; num bytes written to target.
- * \return         \c 0 on failure to parse CN string as an IP address.
- */
-size_t mbedtls_x509_crt_parse_cn_inet_pton(const char *cn, void *dst);
-
-#define MBEDTLS_X509_SAFE_SNPRINTF                          \
-    do {                                                    \
-        if (ret < 0 || (size_t) ret >= n)                  \
-        return MBEDTLS_ERR_X509_BUFFER_TOO_SMALL;    \
-                                                          \
-        n -= (size_t) ret;                                  \
-        p += (size_t) ret;                                  \
-    } while (0)
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* x509.h */