global.h File Reference

#include <stdlib.h>
#include <sys/types.h>
#include "tinydtls.h"

Go to the source code of this file.

Macros
#define	DTLSv12   1
#define	WITH_SHA256   1
#define	DTLS_MAX_BUF   1400
#define	DTLS_DEFAULT_MAX_RETRANSMIT   7
#define	TLS_EXT_ELLIPTIC_CURVES   10 /* see RFC 4492 */
#define	TLS_EXT_EC_POINT_FORMATS   11 /* see RFC 4492 */
#define	TLS_EXT_SIG_HASH_ALGO   13 /* see RFC 5246 */
#define	TLS_EXT_CLIENT_CERTIFICATE_TYPE   19 /* see RFC 7250 */
#define	TLS_EXT_SERVER_CERTIFICATE_TYPE   20 /* see RFC 7250 */
#define	TLS_EXT_ENCRYPT_THEN_MAC   22 /* see RFC 7366 */
#define	TLS_CERT_TYPE_RAW_PUBLIC_KEY   2 /* see RFC 7250 */
#define	TLS_EXT_ELLIPTIC_CURVES_SECP256R1   23 /* see RFC 4492 */
#define	TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED   0 /* see RFC 4492 */
#define	TLS_EC_CURVE_TYPE_NAMED_CURVE   3 /* see RFC 4492 */
#define	TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN   64 /* see RFC 4492 */
#define	TLS_EXT_SIG_HASH_ALGO_SHA256   4 /* see RFC 5246 */
#define	TLS_EXT_SIG_HASH_ALGO_ECDSA   3 /* see RFC 5246 */

Typedefs
typedef unsigned char	uint8
typedef unsigned char	uint16 [2]
typedef unsigned char	uint24 [3]
typedef unsigned char	uint32 [4]
typedef unsigned char	uint48 [6]

Enumerations
enum	dtls_cipher_t { TLS_NULL_WITH_NULL_NULL = 0x0000, TLS_PSK_WITH_AES_128_CCM_8 = 0xC0A8, TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 = 0xC0AE }
enum	dtls_compression_t { TLS_COMPRESSION_NULL = 0x0000 }

Functions
static void	memxor (unsigned char *x, const unsigned char *y, size_t n)
static int	equals (unsigned char *a, unsigned char *b, size_t len)
static int	dtls_fls (unsigned int i)

Macro Definition Documentation

#define DTLS_DEFAULT_MAX_RETRANSMIT   7

Number of message retransmissions.

Definition at line 70 of file global.h.

#define DTLS_MAX_BUF   1400

Maximum size of DTLS message. When Peers are sending bigger messages this causes problems. Californium with ECDSA needs at least 220

Definition at line 64 of file global.h.

#define DTLSv12   1

Definition at line 36 of file global.h.

#define TLS_CERT_TYPE_RAW_PUBLIC_KEY   2 /* see RFC 7250 */

Definition at line 92 of file global.h.

#define TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN   64 /* see RFC 4492 */

Definition at line 100 of file global.h.

#define TLS_EC_CURVE_TYPE_NAMED_CURVE   3 /* see RFC 4492 */

Definition at line 98 of file global.h.

#define TLS_EXT_CLIENT_CERTIFICATE_TYPE   19 /* see RFC 7250 */

Definition at line 88 of file global.h.

#define TLS_EXT_EC_POINT_FORMATS   11 /* see RFC 4492 */

Definition at line 86 of file global.h.

#define TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED   0 /* see RFC 4492 */

Definition at line 96 of file global.h.

#define TLS_EXT_ELLIPTIC_CURVES   10 /* see RFC 4492 */

Definition at line 85 of file global.h.

#define TLS_EXT_ELLIPTIC_CURVES_SECP256R1   23 /* see RFC 4492 */

Definition at line 94 of file global.h.

#define TLS_EXT_ENCRYPT_THEN_MAC   22 /* see RFC 7366 */

Definition at line 90 of file global.h.

#define TLS_EXT_SERVER_CERTIFICATE_TYPE   20 /* see RFC 7250 */

Definition at line 89 of file global.h.

#define TLS_EXT_SIG_HASH_ALGO   13 /* see RFC 5246 */

Definition at line 87 of file global.h.

#define TLS_EXT_SIG_HASH_ALGO_ECDSA   3 /* see RFC 5246 */

Definition at line 103 of file global.h.

#define TLS_EXT_SIG_HASH_ALGO_SHA256   4 /* see RFC 5246 */

Definition at line 102 of file global.h.

#define WITH_SHA256   1

Definition at line 42 of file global.h.

Typedef Documentation

typedef unsigned char uint16[2]

Definition at line 48 of file global.h.

typedef unsigned char uint24[3]

Definition at line 49 of file global.h.

typedef unsigned char uint32[4]

Definition at line 50 of file global.h.

typedef unsigned char uint48[6]

Definition at line 51 of file global.h.

typedef unsigned char uint8

Definition at line 47 of file global.h.

Enumeration Type Documentation

enum dtls_cipher_t

Known cipher suites.

Enumerator
TLS_NULL_WITH_NULL_NULL	NULL cipher
TLS_PSK_WITH_AES_128_CCM_8	see RFC 6655
TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8	see RFC 7251

Definition at line 74 of file global.h.

enum dtls_compression_t

Known compression suites.

Enumerator
TLS_COMPRESSION_NULL

Definition at line 81 of file global.h.

Function Documentation

static int dtls_fls ( unsigned int  i )

inlinestatic

Definition at line 139 of file global.h.

static int equals ( unsigned char *  a, unsigned char *  b, size_t  len  )

inlinestatic

Compares len bytes from a with b in constant time. This functions always traverses the entire length to prevent timing attacks.

Parameters

a	Byte sequence to compare
b	Byte sequence to compare
len	Number of bytes to compare.

Returns

1 if a and b are equal, 0 otherwise.

Definition at line 127 of file global.h.

static void memxor ( unsigned char *  x, const unsigned char *  y, size_t  n  )

inlinestatic

XORs n bytes byte-by-byte starting at y to the memory area starting at x.

Definition at line 109 of file global.h.