netif Struct Reference

#include <netif.h>

Public Attributes
struct netif *	next
ip_addr_t	ip_addr
ip_addr_t	netmask
ip_addr_t	gw
netif_input_fn	input
netif_output_fn	output
netif_linkoutput_fn	linkoutput
void *	state
u16_t	mtu
u8_t	hwaddr_len
u8_t	hwaddr [NETIF_MAX_HWADDR_LEN]
u8_t	flags
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

Definition at line 136 of file netif.h.

Member Data Documentation

u8_t netif::flags

flags (see NETIF_FLAG_ above)

Definition at line 188 of file netif.h.

ip_addr_t netif::gw

Definition at line 143 of file netif.h.

u8_t netif::hwaddr[NETIF_MAX_HWADDR_LEN]

link level hardware address of this interface

Definition at line 186 of file netif.h.

u8_t netif::hwaddr_len

number of bytes used in hwaddr

Definition at line 184 of file netif.h.

netif_input_fn netif::input

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

Definition at line 147 of file netif.h.

ip_addr_t netif::ip_addr

IP address configuration in network byte order

Definition at line 141 of file netif.h.

netif_linkoutput_fn netif::linkoutput

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.

Definition at line 155 of file netif.h.

u16_t netif::mtu

maximum transfer unit (in bytes)

Definition at line 182 of file netif.h.

char netif::name[2]

descriptive abbreviation

Definition at line 190 of file netif.h.

ip_addr_t netif::netmask

Definition at line 142 of file netif.h.

struct netif* netif::next

pointer to next in linked list

Definition at line 138 of file netif.h.

u8_t netif::num

number of this interface

Definition at line 192 of file netif.h.

netif_output_fn netif::output

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.

Definition at line 151 of file netif.h.

void* netif::state

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

Definition at line 168 of file netif.h.

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

• lwip/src/include/lwip/netif.h