Main packet buffer struct. More...

#include <pbuf.h>

Data Fields
struct pbuf *	next
	next pbuf in singly linked pbuf chain More...

void *	payload
	pointer to the actual data in the buffer More...

u16_t	tot_len
	total length of this buffer and all next buffers in chain belonging to the same packet. More...

u16_t	len
	length of this buffer More...

u8_t	type_internal
	a bit field indicating pbuf type and allocation sources (see PBUF_TYPE_FLAG_, PBUF_ALLOC_FLAG_ and PBUF_TYPE_ALLOC_SRC_MASK) More...

u8_t	flags
	misc flags More...

LWIP_PBUF_REF_T	ref
	the reference count always equals the number of pointers that refer to this pbuf. More...

u8_t	if_idx
	For incoming packets, this contains the input netif's index. More...

Detailed Description

Main packet buffer struct.

Definition at line 136 of file ppp_service_if.h.

Field Documentation

u8_t flags

misc flags

Definition at line 211 of file pbuf.h.

u8_t if_idx

For incoming packets, this contains the input netif's index.

Definition at line 221 of file pbuf.h.

u16_t len

length of this buffer

Definition at line 203 of file pbuf.h.

struct pbuf * next

next pbuf in singly linked pbuf chain

Definition at line 137 of file ppp_service_if.h.

void * payload

pointer to the actual data in the buffer

Definition at line 140 of file ppp_service_if.h.

the reference count always equals the number of pointers that refer to this pbuf.

This can be pointers from an application, the stack itself, or pbuf->next pointers from a chain.

Definition at line 218 of file pbuf.h.

u16_t tot_len

total length of this buffer and all next buffers in chain belonging to the same packet.

For non-queue packet chains this is the invariant: p->tot_len == p->len + (p->next? p->next->tot_len: 0)

Definition at line 200 of file pbuf.h.

u8_t type_internal

a bit field indicating pbuf type and allocation sources (see PBUF_TYPE_FLAG_*, PBUF_ALLOC_FLAG_* and PBUF_TYPE_ALLOC_SRC_MASK)

Definition at line 208 of file pbuf.h.