osd-contiki/apps/rest-coap/coap-common.h

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/*
* coap.h
*
* Created on: Aug 25, 2010
* Author: dogan
*/
#ifndef COAP_COMMON_H_
#define COAP_COMMON_H_
#include "contiki-net.h"
/*COAP method types*/
typedef enum {
COAP_GET = 1,
COAP_POST,
COAP_PUT,
COAP_DELETE
} coap_method_t;
typedef enum {
MESSAGE_TYPE_CON,
MESSAGE_TYPE_NON,
MESSAGE_TYPE_ACK,
MESSAGE_TYPE_RST
} message_type;
typedef enum {
OK_200 = 80,
CREATED_201 = 81,
NOT_MODIFIED_304 = 124,
BAD_REQUEST_400 = 160,
NOT_FOUND_404 = 164,
METHOD_NOT_ALLOWED_405 = 165,
UNSUPPORTED_MADIA_TYPE_415 = 175,
INTERNAL_SERVER_ERROR_500 = 200,
BAD_GATEWAY_502 = 202,
GATEWAY_TIMEOUT_504 = 204
} status_code_t;
typedef enum {
Option_Type_Content_Type = 1,
Option_Type_Max_Age = 2,
Option_Type_Etag = 4,
Option_Type_Uri_Authority = 5,
Option_Type_Location = 6,
Option_Type_Uri_Path = 9,
Option_Type_Subscription_Lifetime = 10,
Option_Type_Token = 11,
Option_Type_Block = 13,
Option_Type_Uri_Query = 15
} option_type;
typedef enum {
TEXT_PLAIN = 0,
TEXT_XML = 1,
TEXT_CSV = 2,
TEXT_HTML = 3,
IMAGE_GIF = 21,
IMAGE_JPEG = 22,
IMAGE_PNG = 23,
IMAGE_TIFF = 24,
AUDIO_RAW = 25,
VIDEO_RAW = 26,
APPLICATION_LINK_FORMAT = 40,
APPLICATION_XML = 41,
APPLICATION_OCTET_STREAM = 42,
APPLICATION_RDF_XML = 43,
APPLICATION_SOAP_XML = 44,
APPLICATION_ATOM_XML = 45,
APPLICATION_XMPP_XML = 46,
APPLICATION_EXI = 47,
APPLICATION_X_BXML = 48,
APPLICATION_FASTINFOSET = 49,
APPLICATION_SOAP_FASTINFOSET = 50,
APPLICATION_JSON = 51
} content_type_t;
#define COAP_HEADER_VERSION_MASK 0xC0
#define COAP_HEADER_TYPE_MASK 0x30
#define COAP_HEADER_OPTION_COUNT_MASK 0x0F
#define COAP_HEADER_OPTION_DELTA_MASK 0xF0
#define COAP_HEADER_OPTION_SHORT_LENGTH_MASK 0x0F
#define COAP_HEADER_VERSION_POSITION 6
#define COAP_HEADER_TYPE_POSITION 4
#define COAP_HEADER_OPTION_DELTA_POSITION 4
#define REQUEST_BUFFER_SIZE 200
#define DEFAULT_CONTENT_TYPE 0
#define DEFAULT_MAX_AGE 60
#define DEFAULT_URI_AUTHORITY ""
#define DEFAULT_URI_PATH ""
//keep open requests and their xactid
struct header_option_t
{
struct header_option_t* next;
uint16_t option;
uint16_t len;
uint8_t* value;
};
typedef struct header_option_t header_option_t;
struct block_option_t {
uint32_t number;
uint8_t more;
uint8_t size;
};
typedef struct block_option_t block_option_t;
typedef struct
{
uint8_t ver; //2-bits currently set to 1.
uint8_t type; //2-bits Confirmable (0), Non-Confirmable (1), Acknowledgment (2) or Reset (3)
uint8_t option_count; //4-bits
uint8_t code; //8-bits Method or response code
uint16_t tid; //16-bit unsigned integer
header_option_t* options;
char* url; //put it just as a shortcut or else need to parse options everytime to access it.
uint16_t url_len;
char* query;
uint16_t query_len;
uint16_t payload_len;
uint8_t* payload;
uip_ipaddr_t addr;
} coap_packet_t;
/*error definitions*/
typedef enum
{
NO_ERROR,
/*Memory errors*/
MEMORY_ALLOC_ERR,
MEMORY_BOUNDARY_EXCEEDED
} error_t;
int serialize_packet(coap_packet_t* request, uint8_t* buffer);
void init_packet(coap_packet_t* packet);
#endif /* COAP_COMMON_H_ */