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coap_pdu.c File Reference
CoAP PDU handling. More...
#include "coap3/coap_libcoap_build.h"#include <stdlib.h>#include <stdio.h>#include <string.h>#include <ctype.h>
Include dependency graph for coap_pdu.c:Go to the source code of this file.
Data Structures | |
| struct | error_desc_t |
Macros | |
| #define | min(a, b) ((a) < (b) ? (a) : (b)) |
| #define | max(a, b) ((a) > (b) ? (a) : (b)) |
Functions | |
| void | coap_pdu_clear (coap_pdu_t *pdu, size_t size) |
Clears any contents from pdu and resets used_size, and data pointers. | |
| coap_pdu_t * | coap_pdu_init (coap_pdu_type_t type, coap_pdu_code_t code, coap_mid_t mid, size_t size) |
Creates a new CoAP PDU with at least enough storage space for the given size maximum message size. | |
| COAP_API coap_pdu_t * | coap_new_pdu (coap_pdu_type_t type, coap_pdu_code_t code, coap_session_t *session) |
| Creates a new CoAP PDU. | |
| coap_pdu_t * | coap_new_pdu_lkd (coap_pdu_type_t type, coap_pdu_code_t code, coap_session_t *session) |
| Creates a new CoAP PDU. | |
| void | coap_delete_pdu (coap_pdu_t *pdu) |
| Dispose of an CoAP PDU and frees associated storage. | |
| COAP_API coap_pdu_t * | coap_pdu_duplicate (const coap_pdu_t *old_pdu, coap_session_t *session, size_t token_length, const uint8_t *token, coap_opt_filter_t *drop_options) |
| Duplicate an existing PDU. | |
| coap_pdu_t * | coap_pdu_duplicate_lkd (const coap_pdu_t *old_pdu, coap_session_t *session, size_t token_length, const uint8_t *token, coap_opt_filter_t *drop_options) |
| Duplicate an existing PDU. | |
| int | coap_pdu_resize (coap_pdu_t *pdu, size_t new_size) |
Dynamically grows the size of pdu to new_size. | |
| int | coap_pdu_check_resize (coap_pdu_t *pdu, size_t size) |
Dynamically grows the size of pdu to new_size if needed. | |
| int | coap_add_token (coap_pdu_t *pdu, size_t len, const uint8_t *data) |
Adds token of length len to pdu. | |
| int | coap_update_token (coap_pdu_t *pdu, size_t len, const uint8_t *data) |
Updates token in pdu with length len and data. | |
| int | coap_remove_option (coap_pdu_t *pdu, coap_option_num_t number) |
Removes (first) option of given number from the pdu. | |
| int | coap_option_check_repeatable (coap_option_num_t number) |
| Check whether the option is allowed to be repeated or not. | |
| 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. | |
| 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. | |
| size_t | coap_add_option (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. | |
| 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. | |
| int | coap_add_data (coap_pdu_t *pdu, size_t len, const uint8_t *data) |
| Adds given data to the pdu that is passed as first parameter. | |
| uint8_t * | coap_add_data_after (coap_pdu_t *pdu, size_t len) |
| Adds given data to the pdu that is passed as first parameter but does not. | |
| int | coap_get_data (const coap_pdu_t *pdu, size_t *len, const uint8_t **data) |
| Retrieves the length and data pointer of specified PDU. | |
| int | coap_get_data_large (const coap_pdu_t *pdu, size_t *len, const uint8_t **data, size_t *offset, size_t *total) |
| Retrieves the data from a PDU, with support for large bodies of data that spans multiple PDUs. | |
| const char * | coap_response_phrase (unsigned char code) |
Returns a human-readable response phrase for the specified CoAP response code. | |
| static size_t | next_option_safe (coap_opt_t **optp, size_t *length, uint16_t *max_opt) |
| Advances *optp to next option if still in PDU. | |
| 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. | |
| size_t | coap_pdu_parse_size (coap_proto_t proto, const uint8_t *data, size_t length) |
Parses data to extract the message size. | |
| int | coap_pdu_parse_header (coap_pdu_t *pdu, coap_proto_t proto) |
| Decode the protocol specific header for the specified PDU. | |
| static int | coap_pdu_parse_opt_csm (coap_pdu_t *pdu, uint16_t len) |
| static int | coap_pdu_parse_opt_base (coap_pdu_t *pdu, uint16_t len) |
| static int | write_prefix (char **obp, size_t *len, const char *prf, size_t prflen) |
| static int | write_char (char **obp, size_t *len, int c, int printable) |
| int | coap_pdu_parse_opt (coap_pdu_t *pdu) |
| Verify consistency in the given CoAP PDU structure and locate the data. | |
| int | coap_pdu_parse (coap_proto_t proto, const uint8_t *data, size_t length, coap_pdu_t *pdu) |
Parses data into the CoAP PDU structure given in result. | |
| size_t | coap_pdu_encode_header (coap_pdu_t *pdu, coap_proto_t proto) |
| Compose the protocol specific header for the specified PDU. | |
| coap_pdu_code_t | coap_pdu_get_code (const coap_pdu_t *pdu) |
Gets the PDU code associated with pdu. | |
| void | coap_pdu_set_code (coap_pdu_t *pdu, coap_pdu_code_t code) |
Sets the PDU code in the pdu. | |
| coap_pdu_type_t | coap_pdu_get_type (const coap_pdu_t *pdu) |
Gets the PDU type associated with pdu. | |
| void | coap_pdu_set_type (coap_pdu_t *pdu, coap_pdu_type_t type) |
Sets the PDU type in the pdu. | |
| coap_bin_const_t | coap_pdu_get_token (const coap_pdu_t *pdu) |
Gets the token associated with pdu. | |
| coap_mid_t | coap_pdu_get_mid (const coap_pdu_t *pdu) |
Gets the message id associated with pdu. | |
| void | coap_pdu_set_mid (coap_pdu_t *pdu, coap_mid_t mid) |
Sets the message id in the pdu. | |
Variables | |
| error_desc_t | coap_error [] |
Detailed Description
CoAP PDU handling.
Definition in file coap_pdu.c.
Macro Definition Documentation
◆ max
| #define max | ( | a, | |
| b | |||
| ) | ((a) > (b) ? (a) : (b)) |
Definition at line 38 of file coap_pdu.c.
◆ min
| #define min | ( | a, | |
| b | |||
| ) | ((a) < (b) ? (a) : (b)) |
Definition at line 34 of file coap_pdu.c.
Function Documentation
◆ coap_pdu_parse_opt_base()
|
static |
◆ coap_pdu_parse_opt_csm()
|
static |
◆ next_option_safe()
|
static |
Advances *optp to next option if still in PDU.
This function returns the number of bytes opt has been advanced or 0 on error.
Definition at line 956 of file coap_pdu.c.
Here is the call graph for this function: Here is the caller graph for this function:◆ write_char()
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static |
◆ write_prefix()
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static |
Variable Documentation
◆ coap_error
| error_desc_t coap_error[] |
Initial value:
= {
{ COAP_RESPONSE_CODE(201), "Created" },
{ COAP_RESPONSE_CODE(202), "Deleted" },
{ COAP_RESPONSE_CODE(203), "Valid" },
{ COAP_RESPONSE_CODE(204), "Changed" },
{ COAP_RESPONSE_CODE(205), "Content" },
{ COAP_RESPONSE_CODE(231), "Continue" },
{ COAP_RESPONSE_CODE(400), "Bad Request" },
{ COAP_RESPONSE_CODE(401), "Unauthorized" },
{ COAP_RESPONSE_CODE(402), "Bad Option" },
{ COAP_RESPONSE_CODE(403), "Forbidden" },
{ COAP_RESPONSE_CODE(404), "Not Found" },
{ COAP_RESPONSE_CODE(405), "Method Not Allowed" },
{ COAP_RESPONSE_CODE(406), "Not Acceptable" },
{ COAP_RESPONSE_CODE(408), "Request Entity Incomplete" },
{ COAP_RESPONSE_CODE(409), "Conflict" },
{ COAP_RESPONSE_CODE(412), "Precondition Failed" },
{ COAP_RESPONSE_CODE(413), "Request Entity Too Large" },
{ COAP_RESPONSE_CODE(415), "Unsupported Content-Format" },
{ COAP_RESPONSE_CODE(422), "Unprocessable" },
{ COAP_RESPONSE_CODE(429), "Too Many Requests" },
{ COAP_RESPONSE_CODE(500), "Internal Server Error" },
{ COAP_RESPONSE_CODE(501), "Not Implemented" },
{ COAP_RESPONSE_CODE(502), "Bad Gateway" },
{ COAP_RESPONSE_CODE(503), "Service Unavailable" },
{ COAP_RESPONSE_CODE(504), "Gateway Timeout" },
{ COAP_RESPONSE_CODE(505), "Proxying Not Supported" },
{ COAP_RESPONSE_CODE(508), "Hop Limit Reached" },
{ 0, NULL }
}
Definition at line 908 of file coap_pdu.c.
