ReactOS  0.4.15-dev-3428-g0609db5
asn1write.h File Reference

ASN.1 buffer writing functionality. More...

#include "config.h"
#include "asn1.h"
Include dependency graph for asn1write.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. More...
 
int mbedtls_asn1_write_tag (unsigned char **p, unsigned char *start, unsigned char tag)
 Write an ASN.1 tag in ASN.1 format. More...
 
int mbedtls_asn1_write_raw_buffer (unsigned char **p, unsigned char *start, const unsigned char *buf, size_t size)
 Write raw buffer data. More...
 
int mbedtls_asn1_write_mpi (unsigned char **p, unsigned char *start, const mbedtls_mpi *X)
 Write a arbitrary-precision number (MBEDTLS_ASN1_INTEGER) in ASN.1 format. 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. 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. 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. 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. 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. More...
 
int mbedtls_asn1_write_tagged_string (unsigned char **p, unsigned char *start, int tag, const char *text, size_t text_len)
 Write a string in ASN.1 format using a specific string encoding tag. More...
 
int mbedtls_asn1_write_printable_string (unsigned char **p, unsigned char *start, const char *text, size_t text_len)
 Write a string in ASN.1 format using the PrintableString string encoding tag (MBEDTLS_ASN1_PRINTABLE_STRING). More...
 
int mbedtls_asn1_write_utf8_string (unsigned char **p, unsigned char *start, const char *text, size_t text_len)
 Write a UTF8 string in ASN.1 format using the UTF8String string encoding tag (MBEDTLS_ASN1_PRINTABLE_STRING). More...
 
int mbedtls_asn1_write_ia5_string (unsigned char **p, unsigned char *start, const char *text, size_t text_len)
 Write a string in ASN.1 format using the IA5String string encoding tag (MBEDTLS_ASN1_IA5_STRING). 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. 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. More...
 
mbedtls_asn1_named_datambedtls_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...
 

Detailed Description

ASN.1 buffer writing functionality.

Definition in file asn1write.h.

Macro Definition Documentation

◆ MBEDTLS_ASN1_CHK_ADD

#define MBEDTLS_ASN1_CHK_ADD (   g,
  f 
)
Value:
do \
{ \
if( ( ret = (f) ) < 0 ) \
return( ret ); \
else \
(g) += ret; \
} while( 0 )
GLboolean GLboolean g
Definition: glext.h:6204
GLfloat f
Definition: glext.h:7540
int ret

Definition at line 60 of file asn1write.h.

Function Documentation

◆ mbedtls_asn1_store_named_data()

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!

Parameters
listThe pointer to the location of the head of the list to seek through (will be updated in case of a new entry).
oidThe OID to look for.
oid_lenThe size of the OID.
valThe data to store (can be NULL if you want to fill it by hand).
val_lenThe minimum length of the data buffer needed.
Returns
A pointer to the new / existing entry on success.
NULL if if there was a memory allocation error.

◆ mbedtls_asn1_write_algorithm_identifier()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
oidThe OID of the algorithm to write.
oid_lenThe length of the algorithm's OID.
par_lenThe length of the parameters, which must be already written. If 0, NULL parameters are added
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_bitstring()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
bufThe bitstring to write.
bitsThe total number of bits in the bitstring.
Returns
The number of bytes written to p on success.
A negative error code on failure.

◆ mbedtls_asn1_write_bool()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
booleanThe boolean value to write, either 0 or 1.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_ia5_string()

int mbedtls_asn1_write_ia5_string ( unsigned char **  p,
unsigned char start,
const char text,
size_t  text_len 
)

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.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
textThe string to write.
text_lenThe length of text in bytes (which might be strictly larger than the number of characters).
Returns
The number of bytes written to p on success.
A negative error code on failure.

◆ mbedtls_asn1_write_int()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
valThe integer value to write.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_len()

int mbedtls_asn1_write_len ( unsigned char **  p,
unsigned char start,
size_t  len 
)

Write a length field in ASN.1 format.

Note
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
lenThe length value to write.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_mpi()

int mbedtls_asn1_write_mpi ( unsigned char **  p,
unsigned char start,
const mbedtls_mpi X 
)

Write a arbitrary-precision number (MBEDTLS_ASN1_INTEGER) in ASN.1 format.

Note
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
XThe MPI to write.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_null()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_octet_string()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
bufThe buffer holding the data to write.
sizeThe length of the data buffer buf.
Returns
The number of bytes written to p on success.
A negative error code on failure.

◆ mbedtls_asn1_write_oid()

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
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
oidThe OID to write.
oid_lenThe length of the OID.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_printable_string()

int mbedtls_asn1_write_printable_string ( unsigned char **  p,
unsigned char start,
const char text,
size_t  text_len 
)

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.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
textThe string to write.
text_lenThe length of text in bytes (which might be strictly larger than the number of characters).
Returns
The number of bytes written to p on success.
A negative error code on failure.

◆ mbedtls_asn1_write_raw_buffer()

int mbedtls_asn1_write_raw_buffer ( unsigned char **  p,
unsigned char start,
const unsigned char buf,
size_t  size 
)

Write raw buffer data.

Note
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
bufThe data buffer to write.
sizeThe length of the data buffer.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_tag()

int mbedtls_asn1_write_tag ( unsigned char **  p,
unsigned char start,
unsigned char  tag 
)

Write an ASN.1 tag in ASN.1 format.

Note
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
tagThe tag to write.
Returns
The number of bytes written to p on success.
A negative MBEDTLS_ERR_ASN1_XXX error code on failure.

◆ mbedtls_asn1_write_tagged_string()

int mbedtls_asn1_write_tagged_string ( unsigned char **  p,
unsigned char start,
int  tag,
const char text,
size_t  text_len 
)

Write a string in ASN.1 format using a specific string encoding tag.

Note
This function works backwards in data buffer.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
tagThe string encoding tag to write, e.g. MBEDTLS_ASN1_UTF8_STRING.
textThe string to write.
text_lenThe length of text in bytes (which might be strictly larger than the number of characters).
Returns
The number of bytes written to p on success.
A negative error code on failure.

◆ mbedtls_asn1_write_utf8_string()

int mbedtls_asn1_write_utf8_string ( unsigned char **  p,
unsigned char start,
const char text,
size_t  text_len 
)

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.
Parameters
pThe reference to the current position pointer.
startThe start of the buffer, for bounds-checking.
textThe string to write.
text_lenThe length of text in bytes (which might be strictly larger than the number of characters).
Returns
The number of bytes written to p on success.
A negative error code on failure.