mbed TLS v2.7.6
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ASN.1 buffer writing functionality. More...
#include "asn1.h"
Go to the source code of this file.
Macros | |
#define | MBEDTLS_ASN1_CHK_ADD(g, f) |
Functions | |
int | mbedtls_asn1_write_len (unsigned char **p, unsigned char *start, size_t len) |
Write a length field in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_tag (unsigned char **p, unsigned char *start, unsigned char tag) |
Write a ASN.1 tag in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_raw_buffer (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t size) |
Write raw buffer data Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_mpi (unsigned char **p, unsigned char *start, const mbedtls_mpi *X) |
Write a big number (MBEDTLS_ASN1_INTEGER) in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_null (unsigned char **p, unsigned char *start) |
Write a NULL tag (MBEDTLS_ASN1_NULL) with zero data in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_oid (unsigned char **p, unsigned char *start, const char *oid, size_t oid_len) |
Write an OID tag (MBEDTLS_ASN1_OID) and data in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_algorithm_identifier (unsigned char **p, unsigned char *start, const char *oid, size_t oid_len, size_t par_len) |
Write an AlgorithmIdentifier sequence in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_bool (unsigned char **p, unsigned char *start, int boolean) |
Write a boolean tag (MBEDTLS_ASN1_BOOLEAN) and value in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_int (unsigned char **p, unsigned char *start, int val) |
Write an int tag (MBEDTLS_ASN1_INTEGER) and value in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_printable_string (unsigned char **p, unsigned char *start, const char *text, size_t text_len) |
Write a printable string tag (MBEDTLS_ASN1_PRINTABLE_STRING) and value in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_ia5_string (unsigned char **p, unsigned char *start, const char *text, size_t text_len) |
Write an IA5 string tag (MBEDTLS_ASN1_IA5_STRING) and value in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_bitstring (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t bits) |
Write a bitstring tag (MBEDTLS_ASN1_BIT_STRING) and value in ASN.1 format Note: function works backwards in data buffer. More... | |
int | mbedtls_asn1_write_octet_string (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t size) |
Write an octet string tag (MBEDTLS_ASN1_OCTET_STRING) and value in ASN.1 format Note: function works backwards in data buffer. More... | |
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) |
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! More... | |
ASN.1 buffer writing functionality.
Definition in file asn1write.h.
#define MBEDTLS_ASN1_CHK_ADD | ( | g, | |
f | |||
) |
Definition at line 29 of file asn1write.h.
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 | ||
) |
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!
list | Pointer to the location of the head of the list to seek through (will be updated in case of a new entry) |
oid | The OID to look for |
oid_len | Size of the OID |
val | Data to store (can be NULL if you want to fill it by hand) |
val_len | Minimum length of the data buffer needed |
int mbedtls_asn1_write_algorithm_identifier | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const char * | oid, | ||
size_t | oid_len, | ||
size_t | par_len | ||
) |
Write an AlgorithmIdentifier sequence in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
oid | the OID of the algorithm |
oid_len | length of the OID |
par_len | length of parameters, which must be already written. If 0, NULL parameters are added |
int mbedtls_asn1_write_bitstring | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const unsigned char * | buf, | ||
size_t | bits | ||
) |
Write a bitstring tag (MBEDTLS_ASN1_BIT_STRING) and value in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
buf | the bitstring |
bits | the total number of bits in the bitstring |
int mbedtls_asn1_write_bool | ( | unsigned char ** | p, |
unsigned char * | start, | ||
int | boolean | ||
) |
Write a boolean tag (MBEDTLS_ASN1_BOOLEAN) and value in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
boolean | 0 or 1 |
int mbedtls_asn1_write_ia5_string | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const char * | text, | ||
size_t | text_len | ||
) |
Write an IA5 string tag (MBEDTLS_ASN1_IA5_STRING) and value in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
text | the text to write |
text_len | length of the text |
int mbedtls_asn1_write_int | ( | unsigned char ** | p, |
unsigned char * | start, | ||
int | val | ||
) |
Write an int tag (MBEDTLS_ASN1_INTEGER) and value in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
val | the integer value |
int mbedtls_asn1_write_len | ( | unsigned char ** | p, |
unsigned char * | start, | ||
size_t | len | ||
) |
Write a length field in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
len | the length to write |
int mbedtls_asn1_write_mpi | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const mbedtls_mpi * | X | ||
) |
Write a big number (MBEDTLS_ASN1_INTEGER) in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
X | the MPI to write |
int mbedtls_asn1_write_null | ( | unsigned char ** | p, |
unsigned char * | start | ||
) |
Write a NULL tag (MBEDTLS_ASN1_NULL) with zero data in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
int mbedtls_asn1_write_octet_string | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const unsigned char * | buf, | ||
size_t | size | ||
) |
Write an octet string tag (MBEDTLS_ASN1_OCTET_STRING) and value in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
buf | data buffer to write |
size | length of the data buffer |
int mbedtls_asn1_write_oid | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const char * | oid, | ||
size_t | oid_len | ||
) |
Write an OID tag (MBEDTLS_ASN1_OID) and data in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
oid | the OID to write |
oid_len | length of the OID |
int mbedtls_asn1_write_printable_string | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const char * | text, | ||
size_t | text_len | ||
) |
Write a printable string tag (MBEDTLS_ASN1_PRINTABLE_STRING) and value in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
text | the text to write |
text_len | length of the text |
int mbedtls_asn1_write_raw_buffer | ( | unsigned char ** | p, |
unsigned char * | start, | ||
const unsigned char * | buf, | ||
size_t | size | ||
) |
Write raw buffer data Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
buf | data buffer to write |
size | length of the data buffer |
int mbedtls_asn1_write_tag | ( | unsigned char ** | p, |
unsigned char * | start, | ||
unsigned char | tag | ||
) |
Write a ASN.1 tag in ASN.1 format Note: function works backwards in data buffer.
p | reference to current position pointer |
start | start of the buffer (for bounds-checking) |
tag | the tag to write |