coap_io.c File Reference

#include "coap_config.h"
#include <errno.h>
#include "debug.h"
#include "mem.h"
#include "coap_io.h"

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Data Structures
struct	coap_packet_t
struct	in6_pktinfo
struct	in_pktinfo

Macros
#define	INET6_ADDRSTRLEN   40
#define	SOL_IP   IPPROTO_IP
#define	UNUSED_PARAM
#define	SIN6(A)   ((struct sockaddr_in6 *)(A))

Functions
static struct coap_endpoint_t *	coap_malloc_posix_endpoint (void)
static void	coap_free_posix_endpoint (struct coap_endpoint_t *ep)
coap_endpoint_t *	coap_new_endpoint (const coap_address_t *addr, int flags)
void	coap_free_endpoint (coap_endpoint_t *ep)
ssize_t	coap_network_send (struct coap_context_t *context UNUSED_PARAM, const coap_endpoint_t *local_interface, const coap_address_t *dst, unsigned char *data, size_t datalen)
static coap_packet_t *	coap_malloc_packet (void)
void	coap_free_packet (coap_packet_t *packet)
	Releases the storage allocated for packet. More...
static size_t	coap_get_max_packetlength (const coap_packet_t *packet UNUSED_PARAM)
void	coap_packet_populate_endpoint (coap_packet_t *packet, coap_endpoint_t *target)
	Populate the coap_endpoint_t *target from the incoming packet's destination data. More...
void	coap_packet_copy_source (coap_packet_t *packet, coap_address_t *target)
	Given an incoming packet, copy its source address into an address struct. More...
void	coap_packet_get_memmapped (coap_packet_t *packet, unsigned char **address, size_t *length)
	Given a packet, set msg and msg_len to an address and length of the packet's data in memory. More...
static int	is_local_if (const coap_address_t *local, const coap_address_t *dst)
	Checks if a message with destination address dst matches the local interface with address local. More...
ssize_t	coap_network_read (coap_endpoint_t *ep, coap_packet_t **packet)
	Function interface for reading data. More...

Macro Definition Documentation

INET6_ADDRSTRLEN

#define INET6_ADDRSTRLEN   40

SIN6

#define SIN6

(

A

)

((struct sockaddr_in6 *)(A))

Definition at line 356 of file coap_io.c.

SOL_IP

#define SOL_IP   IPPROTO_IP

Definition at line 239 of file coap_io.c.

UNUSED_PARAM

#define UNUSED_PARAM

Definition at line 245 of file coap_io.c.

Function Documentation

coap_free_endpoint()

void coap_free_endpoint

(

coap_endpoint_t *

ep

)

Definition at line 208 of file coap_io.c.

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coap_free_packet()

void coap_free_packet

(

coap_packet_t *

packet

)

Releases the storage allocated for packet.

Definition at line 372 of file coap_io.c.

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coap_free_posix_endpoint()

static void coap_free_posix_endpoint ( struct coap_endpoint_t *  ep )

inlinestatic

Definition at line 133 of file coap_io.c.

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coap_get_max_packetlength()

static size_t coap_get_max_packetlength ( const coap_packet_t *packet  UNUSED_PARAM )

inlinestatic

Definition at line 389 of file coap_io.c.

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coap_malloc_packet()

static coap_packet_t* coap_malloc_packet ( void  )

static

Definition at line 360 of file coap_io.c.

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coap_malloc_posix_endpoint()

static struct coap_endpoint_t* coap_malloc_posix_endpoint ( void  )

static

Definition at line 128 of file coap_io.c.

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coap_network_read()

ssize_t coap_network_read	(	coap_endpoint_t *	ep,
		coap_packet_t **	packet
	)

Function interface for reading data.

This function returns the number of bytes that have been read, or a value less than zero on error. In case of an error, *packet is set to NULL.

Parameters

ep	The endpoint that is used for reading data from the network.
packet	A result parameter where a pointer to the received packet structure is stored. The caller must call coap_free_packet to release the storage used by this packet.

Returns

The number of bytes received on success, or a value less than zero on error.

Definition at line 425 of file coap_io.c.

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coap_network_send()

ssize_t coap_network_send	(	struct coap_context_t *context	UNUSED_PARAM,
		const coap_endpoint_t *	local_interface,
		const coap_address_t *	dst,
		unsigned char *	data,
		size_t	datalen
	)

Definition at line 249 of file coap_io.c.

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coap_new_endpoint()

coap_endpoint_t* coap_new_endpoint	(	const coap_address_t *	addr,
		int	flags
	)

Definition at line 138 of file coap_io.c.

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coap_packet_copy_source()

void coap_packet_copy_source	(	coap_packet_t *	packet,
		coap_address_t *	target
	)

Given an incoming packet, copy its source address into an address struct.

Definition at line 402 of file coap_io.c.

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coap_packet_get_memmapped()

void coap_packet_get_memmapped	(	coap_packet_t *	packet,
		unsigned char **	address,
		size_t *	length
	)

Given a packet, set msg and msg_len to an address and length of the packet's data in memory.

Definition at line 407 of file coap_io.c.

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coap_packet_populate_endpoint()

void coap_packet_populate_endpoint	(	coap_packet_t *	packet,
		coap_endpoint_t *	target
	)

Populate the coap_endpoint_t *target from the incoming packet's destination data.

This is usually used to copy a packet's data into a node's local_if member.

Definition at line 394 of file coap_io.c.

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is_local_if()

static int is_local_if ( const coap_address_t *  local, const coap_address_t *  dst  )

inlinestatic

Checks if a message with destination address dst matches the local interface with address local.

This function returns 1 if dst is a valid match, and 0 otherwise.

Definition at line 419 of file coap_io.c.

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