netbuf.h File Reference

Network buffer definitions. More...

#include <sys/types.h>
#include <stdint.h>

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Data Structures
struct	_NBDATA
	Data part of a network buffer structure. More...
struct	_NETBUF
	Network buffer structure. More...
Defines
#define	NBAF_REFCNT   0x07
	Reference count mask.
#define	NBAF_UNICAST   0x08
	Unicast address.
#define	NBAF_DATALINK   0x10
	Datalink buffer allocated flag.
#define	NBAF_NETWORK   0x20
	Network buffer allocated flag.
#define	NBAF_TRANSPORT   0x40
	Transport buffer allocated flag.
#define	NBAF_APPLICATION   0x80
	Application buffer allocated flag.
#define	NBAF_ALL   0xf0
	Masks allocated buffer flags flag.
Typedefs
typedef struct _NETBUF	NETBUF
	Network buffer type.
typedef struct _NBDATA	NBDATA
	Network buffer data type.
Functions
NETBUF *	NutNetBufAlloc (NETBUF *nb, uint8_t type, int size)
	Allocate or re-allocate a network buffer part.
NETBUF *	NutNetBufClone (NETBUF *nb)
	Create a copy of an existing network buffer structure.
NETBUF *	NutNetBufClonePart (NETBUF *nb, uint8_t types)
	Create a referencing copy of an existing network buffer structure.
void	NutNetBufFree (NETBUF *nb)
	Release a network buffer structure.
int	NutNetBufCollect (NETBUF *nbq, int total)
	Collect linked list of network buffers.

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Detailed Description

Network buffer definitions.