Collaboration diagram for netif:
Data Fields | |
| struct netif * | next |
| struct ip_addr | ip_addr |
| 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 |
| 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
Field Documentation
| u8_t netif::flags |
flags (see NETIF_FLAG_ above)
| u8_t netif::hwaddr[NETIF_MAX_HWADDR_LEN] |
link level hardware address of this interface
| u8_t netif::hwaddr_len |
number of bytes used in hwaddr
| 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.
| struct ip_addr netif::ip_addr |
IP address configuration in network byte order
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.
| u16_t netif::mtu |
maximum transfer unit (in bytes)
| char netif::name[2] |
descriptive abbreviation
| struct netif* netif::next |
pointer to next in linked list
| u8_t netif::num |
number of this interface
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.
| void* netif::state |
This field can be set by the device driver and could point to state information for the device.
The documentation for this struct was generated from the following file:
- lib/lwip/src/include/lwip/netif.h
