#include "config.h"
#include "config.h"
#include MBEDTLS_CONFIG_FILE
#include MBEDTLS_CONFIG_FILE
#include "asn1.h"
#include "asn1.h"
#define MBEDTLS_ASN1_WRITE_H
#define MBEDTLS_ASN1_CHK_ADD(g, f) \
do \
{ \
if( ( ret = (f) ) < 0 ) \
return( ret ); \
else \
(g) += ret; \
} while( 0 )
int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start,
size_t len );
/** * \brief Write a length field in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param len The length value to write. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_tag( unsigned char **p, unsigned char *start,
unsigned char tag );
/** * \brief Write an ASN.1 tag in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param tag The tag to write. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_raw_buffer( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size );
/** * \brief Write raw buffer data. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param buf The data buffer to write. * \param size The length of the data buffer. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_mpi( unsigned char **p, unsigned char *start,
const mbedtls_mpi *X );
/** * \brief Write a arbitrary-precision number (#MBEDTLS_ASN1_INTEGER) * in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param X The MPI to write. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_null( unsigned char **p, unsigned char *start );
/** * \brief Write a NULL tag (#MBEDTLS_ASN1_NULL) with zero data * in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_oid( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len );
/** * \brief Write an OID tag (#MBEDTLS_ASN1_OID) and data * in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param oid The OID to write. * \param oid_len The length of the OID. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_algorithm_identifier( unsigned char **p,
unsigned char *start,
const char *oid, size_t oid_len,
size_t par_len );
/** * \brief Write an AlgorithmIdentifier sequence in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param oid The OID of the algorithm to write. * \param oid_len The length of the algorithm's OID. * \param par_len The length of the parameters, which must be already written. * If 0, NULL parameters are added * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_bool( unsigned char **p, unsigned char *start,
int boolean );
/** * \brief Write a boolean tag (#MBEDTLS_ASN1_BOOLEAN) and value * in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param boolean The boolean value to write, either \c 0 or \c 1. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_int( unsigned char **p, unsigned char *start, int val );
/** * \brief Write an int tag (#MBEDTLS_ASN1_INTEGER) and value * in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param val The integer value to write. * * \return The number of bytes written to \p p on success. * \return A negative \c MBEDTLS_ERR_ASN1_XXX error code on failure. */
int mbedtls_asn1_write_tagged_string( unsigned char **p, unsigned char *start,
int tag, const char *text,
size_t text_len );
/** * \brief Write a string in ASN.1 format using a specific * string encoding tag. * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param tag The string encoding tag to write, e.g. * #MBEDTLS_ASN1_UTF8_STRING. * \param text The string to write. * \param text_len The length of \p text in bytes (which might * be strictly larger than the number of characters). * * \return The number of bytes written to \p p on success. * \return A negative error code on failure. */
int mbedtls_asn1_write_printable_string( unsigned char **p,
unsigned char *start,
const char *text, size_t text_len );
/** * \brief Write a string in ASN.1 format using the PrintableString * string encoding tag (#MBEDTLS_ASN1_PRINTABLE_STRING). * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param text The string to write. * \param text_len The length of \p text in bytes (which might * be strictly larger than the number of characters). * * \return The number of bytes written to \p p on success. * \return A negative error code on failure. */
int mbedtls_asn1_write_utf8_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len );
/** * \brief Write a UTF8 string in ASN.1 format using the UTF8String * string encoding tag (#MBEDTLS_ASN1_PRINTABLE_STRING). * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param text The string to write. * \param text_len The length of \p text in bytes (which might * be strictly larger than the number of characters). * * \return The number of bytes written to \p p on success. * \return A negative error code on failure. */
int mbedtls_asn1_write_ia5_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len );
/** * \brief Write a string in ASN.1 format using the IA5String * string encoding tag (#MBEDTLS_ASN1_IA5_STRING). * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param text The string to write. * \param text_len The length of \p text in bytes (which might * be strictly larger than the number of characters). * * \return The number of bytes written to \p p on success. * \return A negative error code on failure. */
int mbedtls_asn1_write_bitstring( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t bits );
/** * \brief Write a bitstring tag (#MBEDTLS_ASN1_BIT_STRING) and * value in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param buf The bitstring to write. * \param bits The total number of bits in the bitstring. * * \return The number of bytes written to \p p on success. * \return A negative error code on failure. */
int mbedtls_asn1_write_octet_string( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size );
/** * \brief Write an octet string tag (#MBEDTLS_ASN1_OCTET_STRING) * and value in ASN.1 format. * * \note This function works backwards in data buffer. * * \param p The reference to the current position pointer. * \param start The start of the buffer, for bounds-checking. * \param buf The buffer holding the data to write. * \param size The length of the data buffer \p buf. * * \return The number of bytes written to \p p on success. * \return A negative error code on failure. */
mbedtls_asn1_named_data *mbedtls_asn1_store_named_data( mbedtls_asn1_named_data **list,
const char *oid, size_t oid_len,
const unsigned char *val,
size_t val_len );
/** * \brief Create or find a specific named_data entry for writing in a * sequence or list based on the OID. If not already in there, * a new entry is added to the head of the list. * Warning: Destructive behaviour for the val data! * * \param list The pointer to the location of the head of the list to seek * through (will be updated in case of a new entry). * \param oid The OID to look for. * \param oid_len The size of the OID. * \param val The data to store (can be \c NULL if you want to fill * it by hand). * \param val_len The minimum length of the data buffer needed. * * \return A pointer to the new / existing entry on success. * \return \c NULL if if there was a memory allocation error. */