coap_pdu_internal.h File Reference

CoAP PDU internal information. More...

#include "coap_internal.h"
#include <stdint.h>

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Data Structures
struct	coap_pdu_t
	structure for CoAP PDUs More...

Macros
#define	COAP_DEFAULT_VERSION   1 /* version of CoAP supported */
#define	COAP_MESSAGE_SIZE_OFFSET_TCP8   13
#define	COAP_MESSAGE_SIZE_OFFSET_TCP16   269 /* 13 + 256 */
#define	COAP_MESSAGE_SIZE_OFFSET_TCP32   65805 /* 269 + 65536 */
#define	COAP_MAX_MESSAGE_SIZE_TCP0   (COAP_MESSAGE_SIZE_OFFSET_TCP8-1) /* 12 */
#define	COAP_MAX_MESSAGE_SIZE_TCP8   (COAP_MESSAGE_SIZE_OFFSET_TCP16-1) /* 268 */
#define	COAP_MAX_MESSAGE_SIZE_TCP16   (COAP_MESSAGE_SIZE_OFFSET_TCP32-1) /* 65804 */
#define	COAP_MAX_MESSAGE_SIZE_TCP32   (COAP_MESSAGE_SIZE_OFFSET_TCP32+0xFFFFFFFF)
#define	COAP_DROPPED_RESPONSE   -2
	Indicates that a response is suppressed. More...
#define	COAP_PDU_DELAYED   -3
#define	COAP_PAYLOAD_START   0xFF /* payload marker */
#define	COAP_PDU_IS_EMPTY(pdu)   ((pdu)->code == 0)
#define	COAP_PDU_IS_REQUEST(pdu)   (!COAP_PDU_IS_EMPTY(pdu) && (pdu)->code < 32)
#define	COAP_PDU_IS_RESPONSE(pdu)   ((pdu)->code >= 64 && (pdu)->code < 224)
#define	COAP_PDU_IS_SIGNALING(pdu)   ((pdu)->code >= 224)
#define	COAP_PDU_MAX_UDP_HEADER_SIZE   4
#define	COAP_PDU_MAX_TCP_HEADER_SIZE   6

Functions
int	coap_pdu_resize (coap_pdu_t *pdu, size_t new_size)
	Dynamically grows the size of pdu to new_size. More...
int	coap_pdu_check_resize (coap_pdu_t *pdu, size_t new_size)
	Dynamically grows the size of pdu to new_size if needed. More...
size_t	coap_pdu_parse_header_size (coap_proto_t proto, const uint8_t *data)
	Interprets data to determine the number of bytes in the header. More...
size_t	coap_pdu_parse_size (coap_proto_t proto, const uint8_t *data, size_t length)
	Parses data to extract the message size. More...
int	coap_pdu_parse_header (coap_pdu_t *pdu, coap_proto_t proto)
	Decode the protocol specific header for the specified PDU. More...
int	coap_pdu_parse_opt (coap_pdu_t *pdu)
	Verify consistency in the given CoAP PDU structure and locate the data. More...
void	coap_pdu_clear (coap_pdu_t *pdu, size_t size)
	Clears any contents from pdu and resets used_size, and data pointers. More...
size_t	coap_add_option_internal (coap_pdu_t *pdu, coap_option_num_t number, size_t len, const uint8_t *data)
	Adds option of given number to pdu that is passed as first parameter. More...
int	coap_remove_option (coap_pdu_t *pdu, coap_option_num_t number)
	Removes (first) option of given number from the pdu. More...
size_t	coap_insert_option (coap_pdu_t *pdu, coap_option_num_t number, size_t len, const uint8_t *data)
	Inserts option of given number in the pdu with the appropriate data. More...
size_t	coap_update_option (coap_pdu_t *pdu, coap_option_num_t number, size_t len, const uint8_t *data)
	Updates existing first option of given number in the pdu with the new data. More...
size_t	coap_pdu_encode_header (coap_pdu_t *pdu, coap_proto_t proto)
	Compose the protocol specific header for the specified PDU. More...
int	coap_update_token (coap_pdu_t *pdu, size_t len, const uint8_t *data)
	Updates token in pdu with length len and data. More...

Detailed Description

CoAP PDU internal information.

Definition in file coap_pdu_internal.h.