Functions | |
u8_t | raw_input (struct pbuf *p, struct netif *inp) |
err_t | raw_bind (struct raw_pcb *pcb, struct ip_addr *ipaddr) |
err_t | raw_connect (struct raw_pcb *pcb, struct ip_addr *ipaddr) |
void | raw_recv (struct raw_pcb *pcb, u8_t(*recv)(void *arg, struct raw_pcb *upcb, struct pbuf *p, struct ip_addr *addr), void *recv_arg) |
err_t | raw_sendto (struct raw_pcb *pcb, struct pbuf *p, struct ip_addr *ipaddr) |
err_t | raw_send (struct raw_pcb *pcb, struct pbuf *p) |
void | raw_remove (struct raw_pcb *pcb) |
struct raw_pcb * | raw_new (u8_t proto) |
err_t raw_bind | ( | struct raw_pcb * | pcb, | |
struct ip_addr * | ipaddr | |||
) |
Bind a RAW PCB.
pcb | RAW PCB to be bound with a local address ipaddr. | |
ipaddr | local IP address to bind with. Use IP_ADDR_ANY to bind to all local interfaces. |
err_t raw_connect | ( | struct raw_pcb * | pcb, | |
struct ip_addr * | ipaddr | |||
) |
Connect an RAW PCB. This function is required by upper layers of lwip. Using the raw api you could use raw_sendto() instead
This will associate the RAW PCB with the remote address.
pcb | RAW PCB to be connected with remote address ipaddr and port. | |
ipaddr | remote IP address to connect with. |
u8_t raw_input | ( | struct pbuf * | p, | |
struct netif * | inp | |||
) |
Determine if in incoming IP packet is covered by a RAW PCB and if so, pass it to a user-provided receive callback function.
Given an incoming IP datagram (as a chain of pbufs) this function finds a corresponding RAW PCB and calls the corresponding receive callback function.
p | pbuf to be demultiplexed to a RAW PCB. | |
inp | network interface on which the datagram was received. |
- 0 if packet is not eaten (pbuf is still referenced by the caller).
struct raw_pcb* raw_new | ( | u8_t | proto | ) | [read] |
Create a RAW PCB.
proto | the protocol number of the IPs payload (e.g. IP_PROTO_ICMP) |
void raw_recv | ( | struct raw_pcb * | pcb, | |
u8_t(*)(void *arg, struct raw_pcb *upcb, struct pbuf *p, struct ip_addr *addr) | recv, | |||
void * | recv_arg | |||
) |
Set the callback function for received packets that match the raw PCB's protocol and binding.
The callback function MUST either
void raw_remove | ( | struct raw_pcb * | pcb | ) |
Remove an RAW PCB.
pcb | RAW PCB to be removed. The PCB is removed from the list of RAW PCB's and the data structure is freed from memory. |
err_t raw_send | ( | struct raw_pcb * | pcb, | |
struct pbuf * | p | |||
) |
Send the raw IP packet to the address given by raw_connect()
pcb | the raw pcb which to send | |
p | the IP payload to send |
err_t raw_sendto | ( | struct raw_pcb * | pcb, | |
struct pbuf * | p, | |||
struct ip_addr * | ipaddr | |||
) |
Send the raw IP packet to the given address. Note that actually you cannot modify the IP headers (this is inconsistent with the receive callback where you actually get the IP headers), you can only specify the IP payload here. It requires some more changes in lwIP. (there will be a raw_send() function then.)
pcb | the raw pcb which to send | |
p | the IP payload to send | |
ipaddr | the destination address of the IP packet |