rb.h File Reference

Reassembly buffer definitions. More...

Detailed Description

Reassembly buffer definitions.

Author

Martine Lenders m.len.nosp@m.ders.nosp@m.@fu-b.nosp@m.erli.nosp@m.n.de

Definition in file rb.h.

#include <stdint.h>
#include <stdbool.h>
#include <stdalign.h>
#include "architecture.h"
#include "net/gnrc/netif/hdr.h"
#include "net/gnrc/pkt.h"
#include "net/gnrc/sixlowpan/config.h"

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Data Structures
struct	gnrc_sixlowpan_frag_rb_int
	Fragment intervals to identify limits of fragments and duplicates. More...
struct	gnrc_sixlowpan_frag_rb_base_t
	Base class for both reassembly buffer and virtual reassembly buffer. More...
struct	gnrc_sixlowpan_frag_rb_t
	An entry in the 6LoWPAN reassembly buffer. More...

Macros
#define	GNRC_SIXLOWPAN_FRAG_RB_GC_MSG   (0x0226)
	Message type for triggering garbage collection reassembly buffer.

Typedefs
typedef struct gnrc_sixlowpan_frag_rb_int	gnrc_sixlowpan_frag_rb_int_t
	Fragment intervals to identify limits of fragments and duplicates.

Functions
gnrc_sixlowpan_frag_rb_t *	gnrc_sixlowpan_frag_rb_add (gnrc_netif_hdr_t *netif_hdr, gnrc_pktsnip_t *frag, size_t offset, unsigned page)
	Adds a new fragment to the reassembly buffer.
gnrc_sixlowpan_frag_rb_t *	gnrc_sixlowpan_frag_rb_get_by_datagram (const gnrc_netif_hdr_t *netif_hdr, uint16_t tag)
	Gets a reassembly buffer entry with a given link-layer address pair and tag.
bool	gnrc_sixlowpan_frag_rb_exists (const gnrc_netif_hdr_t *netif_hdr, uint16_t tag)
	Checks if a reassembly buffer entry with a given link-layer address pair and tag exists.
void	gnrc_sixlowpan_frag_rb_rm_by_datagram (const gnrc_netif_hdr_t *netif_hdr, uint16_t tag)
	Removes a reassembly buffer entry with a given link-layer address pair and tag.
static bool	gnrc_sixlowpan_frag_rb_entry_empty (const gnrc_sixlowpan_frag_rb_t *rbuf)
	Checks if a reassembly buffer entry is unset.
void	gnrc_sixlowpan_frag_rb_reset (void)
	Resets the packet buffer to a clean state.
const gnrc_sixlowpan_frag_rb_t *	gnrc_sixlowpan_frag_rb_array (void)
	Returns a pointer to the array representing the reassembly buffer.
void	gnrc_sixlowpan_frag_rb_base_rm (gnrc_sixlowpan_frag_rb_base_t *entry)
	Remove base entry.
void	gnrc_sixlowpan_frag_rb_gc (void)
	Garbage collect reassembly buffer.
int	gnrc_sixlowpan_frag_rb_dispatch_when_complete (gnrc_sixlowpan_frag_rb_t *rbuf, gnrc_netif_hdr_t *netif)
	Checks if a reassembly buffer entry is complete and dispatches it to the next layer if that is the case.
static void	gnrc_sixlowpan_frag_rb_remove (gnrc_sixlowpan_frag_rb_t *rbuf)
	Unsets a reassembly buffer entry (but does not free rbuf_t::super::pkt)
bool	gnrc_sixlowpan_frag_rb_ints_empty (void)
	Check if pool of fragment intervals is empty.