#include "lwip/opt.h"
#include "lwip/udp.h"
#include "lwip/def.h"
#include "lwip/memp.h"
#include "lwip/inet_chksum.h"
#include "lwip/ip_addr.h"
#include "lwip/ip6.h"
#include "lwip/ip6_addr.h"
#include "lwip/netif.h"
#include "lwip/icmp.h"
#include "lwip/icmp6.h"
#include "lwip/stats.h"
#include "lwip/snmp.h"
#include "lwip/dhcp.h"
#include <string.h>

Functions
void	udp_init (void)

void	udp_input (struct pbuf p, struct netif inp)

err_t	udp_send (struct udp_pcb pcb, struct pbuf p)

err_t	udp_sendto (struct udp_pcb pcb, struct pbuf p, const ip_addr_t *dst_ip, u16_t dst_port)

err_t	udp_sendto_if (struct udp_pcb pcb, struct pbuf p, const ip_addr_t dst_ip, u16_t dst_port, struct netif netif)

err_t	udp_sendto_if_src (struct udp_pcb pcb, struct pbuf p, const ip_addr_t dst_ip, u16_t dst_port, struct netif netif, const ip_addr_t *src_ip)

err_t	udp_bind (struct udp_pcb pcb, const ip_addr_t ipaddr, u16_t port)

err_t	udp_connect (struct udp_pcb pcb, const ip_addr_t ipaddr, u16_t port)

void	udp_disconnect (struct udp_pcb *pcb)

void	udp_recv (struct udp_pcb pcb, udp_recv_fn recv, void recv_arg)

void	udp_remove (struct udp_pcb *pcb)

struct udp_pcb *	udp_new (void)

struct udp_pcb *	udp_new_ip_type (u8_t type)

void	udp_netif_ip_addr_changed (const ip_addr_t old_addr, const ip_addr_t new_addr)

Detailed Description

User Datagram Protocol module
The code for the User Datagram Protocol UDP & UDPLite (RFC 3828).
See also UDP

Function Documentation

◆ udp_init()

void udp_init ( void )

Initialize this module.

◆ udp_input()

void udp_input	(	struct pbuf *	p,
		struct netif *	inp
	)

Process an incoming UDP datagram.

Given an incoming UDP datagram (as a chain of pbufs) this function finds a corresponding UDP PCB and hands over the pbuf to the pcbs recv function. If no pcb is found or the datagram is incorrect, the pbuf is freed.

Parameters

p	pbuf to be demultiplexed to a UDP PCB (p->payload pointing to the UDP header)
inp	network interface on which the datagram was received.

◆ udp_netif_ip_addr_changed()

void udp_netif_ip_addr_changed	(	const ip_addr_t *	old_addr,
		const ip_addr_t *	new_addr
	)

This function is called from netif.c when address is changed