IP fragmentation/reassembly. More...

Data Structures
struct	ip_reassdata
	IP reassembly helper struct. More...
struct	pbuf_custom_ref
	A custom pbuf that holds a reference to another pbuf, which is freed when this custom pbuf is freed. More...
Functions
void	ip_reass_tmr (void)
	Reassembly timer base function for both NO_SYS == 0 and 1 (!).
struct pbuf *	ip4_reass (struct pbuf *p)
	Reassembles incoming IP fragments into an IP datagram.
err_t	ip4_frag (struct pbuf p, struct netif netif, const ip4_addr_t *dest)
	Fragment an IP datagram if too large for the netif.

Detailed Description

IP fragmentation/reassembly.

Definition in file ip4_frag.h.

Function Documentation

Fragment an IP datagram if too large for the netif.

Chop the datagram in MTU sized chunks and send them in order by pointing PBUF_REFs into p.

Parameters:

p	ip packet to send
netif	the netif on which to send
dest	destination ip address to which to send

Definition at line 741 of file lwip_ip4_frag.c.

struct pbuf* ip4_reass ( struct pbuf * p ) [read]

Reassembles incoming IP fragments into an IP datagram.

Parameters:

p	points to a pbuf chain of the fragment

Definition at line 504 of file lwip_ip4_frag.c.

void ip_reass_tmr ( void )

Reassembly timer base function for both NO_SYS == 0 and 1 (!).

Should be called every 1000 msec (defined by IP_TMR_INTERVAL).

Definition at line 128 of file lwip_ip4_frag.c.