netif Struct Reference

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

#include <netif.h>

Data Fields
u8_t	flags
	flags (see NETIF_FLAG_ above) More...
ip_addr_t	gw
u8_t	hwaddr [NETIF_MAX_HWADDR_LEN]
	link level hardware address of this interface More...
u8_t	hwaddr_len
	number of bytes used in hwaddr More...
netif_input_fn	input
	This function is called by the network device driver to pass a packet up the TCP/IP stack. More...
ip_addr_t	ip_addr
	IP address configuration in network byte order. More...
netif_linkoutput_fn	linkoutput
	This function is called by the ARP module when it wants to send a packet on the interface. More...
u16_t	mtu
	maximum transfer unit (in bytes) More...
char	name [2]
	descriptive abbreviation More...
ip_addr_t	netmask
struct netif *	next
	pointer to next in linked list More...
u8_t	num
	number of this interface More...
netif_output_fn	output
	This function is called by the IP module when it wants to send a packet on the interface. More...
void *	state
	This field can be set by the device driver and could point to state information for the device. More...

u8_t netif::flags

flags (see NETIF_FLAG_ above)

Referenced by gmac_low_level_init(), netif_add(), netif_remove(), netif_set_down(), netif_set_link_down(), netif_set_link_up(), netif_set_up(), and tcpip_input().

ip_addr_t netif::gw

Referenced by netif_add(), and netif_set_gw().

u8_t netif::hwaddr[NETIF_MAX_HWADDR_LEN]

link level hardware address of this interface

Referenced by gmac_low_level_init().

u8_t netif::hwaddr_len

number of bytes used in hwaddr

Referenced by gmac_low_level_init().

netif_input_fn netif::input

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

Referenced by ethernetif_input(), and netif_add().

ip_addr_t netif::ip_addr

IP address configuration in network byte order.

Referenced by netif_add(), netif_set_ipaddr(), and status_callback().

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.

Referenced by ethernetif_init().

u16_t netif::mtu

maximum transfer unit (in bytes)

Referenced by gmac_low_level_init().

char netif::name[2]

descriptive abbreviation

Referenced by ethernetif_init(), netif_add(), netif_find(), netif_set_default(), netif_set_gw(), netif_set_ipaddr(), and netif_set_netmask().

ip_addr_t netif::netmask

Referenced by netif_add(), and netif_set_netmask().

struct netif* netif::next

pointer to next in linked list

Referenced by netif_add(), netif_find(), and netif_remove().

u8_t netif::num

number of this interface

Referenced by netif_add(), and netif_find().

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.

Referenced by ethernetif_init().

void* netif::state

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

Referenced by ethernetif_init(), gmac_low_level_input(), gmac_low_level_output(), and netif_add().