lwIP 2.2.1 Lightweight IP stack

Data Structures | Typedefs | Functions
raw.h File Reference
`#include "lwip/opt.h"`
`#include "lwip/pbuf.h"`
`#include "lwip/def.h"`
`#include "lwip/ip.h"`
`#include "lwip/ip_addr.h"`
`#include "lwip/ip6_addr.h"`

## Data Structures
struct | raw_pcb

## Typedefs
typedef u8_t(* | raw_recv_fn) (void *arg, struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *addr)

## Functions
struct raw_pcb * | raw_new (u8_t proto)
struct raw_pcb * | raw_new_ip_type (u8_t type, u8_t proto)
void | raw_remove (struct raw_pcb *pcb)
err_t | raw_bind (struct raw_pcb *pcb, const ip_addr_t *ipaddr)
void | raw_bind_netif (struct raw_pcb *pcb, const struct netif *netif)
err_t | raw_connect (struct raw_pcb *pcb, const ip_addr_t *ipaddr)
void | raw_disconnect (struct raw_pcb *pcb)
err_t | raw_sendto (struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *ipaddr)
err_t | raw_sendto_if_src (struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, struct netif *netif, const ip_addr_t *src_ip)
err_t | raw_send (struct raw_pcb *pcb, struct pbuf *p)
void | raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg)

## Detailed Description

raw API (to be used from TCPIP thread)
See also RAW

## Typedef Documentation

## ◆ raw_recv_fn

typedef u8_t(* raw_recv_fn) (void *arg, struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *addr)

Function prototype for raw pcb receive callback functions.

Parameters

  arg | user supplied argument (raw_pcb.recv_arg)
  pcb | the raw_pcb which received data
  p | the packet buffer that was received
  addr | the remote IP address from which the packet was received

Returns
  1 if the packet was 'eaten' (aka. deleted), 0 if the packet lives on If returning 1, the callback is responsible for freeing the pbuf if it's not used any more.