netif Struct Reference

#include <netif.h>

Collaboration diagram for netif:

Public Attributes
struct netif *	next
struct ip_addr	ip_addr
struct ip_addr	netmask
struct ip_addr	gw
err_t(*	input )(struct pbuf *p, struct netif *inp)
err_t(*	output )(struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)
err_t(*	linkoutput )(struct netif *netif, struct pbuf *p)
void *	state
u8_t	hwaddr_len
u8_t	hwaddr [NETIF_MAX_HWADDR_LEN]
u16_t	mtu
u8_t	flags
u8_t	link_type
char	name [2]
u8_t	num

Detailed Description

Generic data structure used for all lwIP network interfaces. The following fields should be filled in by the initialization function for the device driver: hwaddr_len, hwaddr[], mtu, flags

Member Data Documentation

flags

u8_t netif::flags

flags (see NETIF_FLAG_ above)

gw

struct ip_addr netif::gw

hwaddr

u8_t netif::hwaddr[NETIF_MAX_HWADDR_LEN]

link level hardware address of this interface

hwaddr_len

u8_t netif::hwaddr_len

number of bytes used in hwaddr

input

err_t(* netif::input) (struct pbuf *p, struct netif *inp)

This function is called by the network device driver to pass a packet up the TCP/IP stack.

ip_addr

struct ip_addr netif::ip_addr

IP address configuration in network byte order

link_type

u8_t netif::link_type

link type

linkoutput

err_t(* netif::linkoutput) (struct netif *netif, struct pbuf *p)

This function is called by the ARP module when it wants to send a packet on the interface. This function outputs the pbuf as-is on the link medium.

mtu

u16_t netif::mtu

maximum transfer unit (in bytes)

name

char netif::name[2]

descriptive abbreviation

netmask

struct ip_addr netif::netmask

next

struct netif* netif::next

pointer to next in linked list

num

u8_t netif::num

number of this interface

output

err_t(* netif::output) (struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)

This function is called by the IP module when it wants to send a packet on the interface. This function typically first resolves the hardware address, then sends the packet.

state

void* netif::state

This field can be set by the device driver and could point to state information for the device.

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The documentation for this struct was generated from the following file:

• wii/libogc/include/lwip/netif.h