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lwip
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netif Struct Reference
Generic data structure used for all lwIP network interfaces.
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#include <netif.h >
struct netif * next pointer to next in linked list ip_addr_t ip_addr IP address configuration in network byte order. netif_input_fn input This function is called by the network device driver to pass a packet up the TCP/IP stack. netif_output_fn output This function is called by the IP module when it wants to send a packet on the interface. netif_linkoutput_fn linkoutput This function is called by the ARP module when it wants to send a packet on the interface. netif_status_callback_fn status_callback This function is called when the netif state is set to up or down. netif_status_callback_fn link_callback This function is called when the netif link is set to up or down. void * state This field can be set by the device driver and could point to state information for the device. struct dhcp * dhcp the DHCP client state information for this netif struct autoip * autoip the AutoIP client state information for this netif u16_t mtu maximum transfer unit (in bytes) u8_t hwaddr_len number of bytes used in hwaddr u8_t hwaddr [NETIF_MAX_HWADDR_LEN] link level hardware address of this interface u8_t flags flags (see NETIF_FLAG_ above) char name [2] descriptive abbreviation u8_t num number of this interface u8_t link_type link type (from "snmp_ifType" enum from snmp.h ) u32_t link_speed (estimate) link speed u32_t ts timestamp at last change made (up/down) u32_t ifinoctets counters netif_igmp_mac_filter_fn igmp_mac_filter This function could be called to add or delete a entry in the multicast filter table of the ethernet MAC.
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 .
Field Documentation
the AutoIP client state information for this netif
Definition at line 175 of file netif.h .
the DHCP client state information for this netif
Definition at line 171 of file netif.h .
flags (see NETIF_FLAG_ above)
Definition at line 188 of file netif.h .
u8_t hwaddr [NETIF_MAX_HWADDR_LEN]
link level hardware address of this interface
Definition at line 186 of file netif.h .
number of bytes used in hwaddr
Definition at line 184 of file netif.h .
This function could be called to add or delete a entry in the multicast filter table of the ethernet MAC.
Definition at line 213 of file netif.h .
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 address configuration in network byte order.
Definition at line 141 of file netif.h .
This function is called when the netif link is set to up or down.
Definition at line 164 of file netif.h .
(estimate) link speed
Definition at line 197 of file netif.h .
link type (from "snmp_ifType" enum from snmp.h )
Definition at line 195 of file netif.h .
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 .
maximum transfer unit (in bytes)
Definition at line 182 of file netif.h .
descriptive abbreviation
Definition at line 190 of file netif.h .
pointer to next in linked list
Definition at line 138 of file netif.h .
number of this interface
Definition at line 192 of file netif.h .
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 .
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 .
This function is called when the netif state is set to up or down.
Definition at line 159 of file netif.h .
timestamp at last change made (up/down)
Definition at line 199 of file netif.h .
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