+++ /dev/null
-/*
- * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * This file is part of the lwIP TCP/IP stack.
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- */
-#ifndef __LWIP_UDP_H__
-#define __LWIP_UDP_H__
-
-#include "lwip/opt.h"
-
-#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */
-
-#include "lwip/pbuf.h"
-#include "lwip/netif.h"
-#include "lwip/ip_addr.h"
-#include "lwip/ip.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define UDP_HLEN 8
-
-/* Fields are (of course) in network byte order. */
-#ifdef PACK_STRUCT_USE_INCLUDES
-# include "arch/bpstruct.h"
-#endif
-PACK_STRUCT_BEGIN
-struct udp_hdr {
- PACK_STRUCT_FIELD(u16_t src);
- PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */
- PACK_STRUCT_FIELD(u16_t len);
- PACK_STRUCT_FIELD(u16_t chksum);
-} PACK_STRUCT_STRUCT;
-PACK_STRUCT_END
-#ifdef PACK_STRUCT_USE_INCLUDES
-# include "arch/epstruct.h"
-#endif
-
-#define UDP_FLAGS_NOCHKSUM 0x01U
-#define UDP_FLAGS_UDPLITE 0x02U
-#define UDP_FLAGS_CONNECTED 0x04U
-
-struct udp_pcb {
-/* Common members of all PCB types */
- IP_PCB;
-
-/* Protocol specific PCB members */
-
- struct udp_pcb *next;
-
- u8_t flags;
- /* ports are in host byte order */
- u16_t local_port, remote_port;
-
-#if LWIP_IGMP
- /* outgoing network interface for multicast packets */
- struct ip_addr multicast_ip;
-#endif /* LWIP_IGMP */
-
-#if LWIP_UDPLITE
- /* used for UDP_LITE only */
- u16_t chksum_len_rx, chksum_len_tx;
-#endif /* LWIP_UDPLITE */
-
- /* receive callback function
- * addr and port are in same byte order as in the pcb
- * The callback is responsible for freeing the pbuf
- * if it's not used any more.
- *
- * @param arg user supplied argument (udp_pcb.recv_arg)
- * @param pcb the udp_pcb which received data
- * @param p the packet buffer that was received
- * @param addr the remote IP address from which the packet was received
- * @param port the remote port from which the packet was received
- */
- void (* recv)(void *arg, struct udp_pcb *pcb, struct pbuf *p,
- struct ip_addr *addr, u16_t port);
- /* user-supplied argument for the recv callback */
- void *recv_arg;
-};
-/* udp_pcbs export for exernal reference (e.g. SNMP agent) */
-extern struct udp_pcb *udp_pcbs;
-
-/* The following functions is the application layer interface to the
- UDP code. */
-struct udp_pcb * udp_new (void);
-void udp_remove (struct udp_pcb *pcb);
-err_t udp_bind (struct udp_pcb *pcb, struct ip_addr *ipaddr,
- u16_t port);
-err_t udp_connect (struct udp_pcb *pcb, struct ip_addr *ipaddr,
- u16_t port);
-void udp_disconnect (struct udp_pcb *pcb);
-void udp_recv (struct udp_pcb *pcb,
- void (* recv)(void *arg, struct udp_pcb *upcb,
- struct pbuf *p,
- struct ip_addr *addr,
- u16_t port),
- void *recv_arg);
-err_t udp_sendto_if (struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port, struct netif *netif);
-err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port);
-err_t udp_send (struct udp_pcb *pcb, struct pbuf *p);
-
-#define udp_flags(pcb) ((pcb)->flags)
-#define udp_setflags(pcb, f) ((pcb)->flags = (f))
-
-/* The following functions are the lower layer interface to UDP. */
-void udp_input (struct pbuf *p, struct netif *inp);
-
-#define udp_init() /* Compatibility define, not init needed. */
-
-#if UDP_DEBUG
-void udp_debug_print(struct udp_hdr *udphdr);
-#else
-#define udp_debug_print(udphdr)
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* LWIP_UDP */
-
-#endif /* __LWIP_UDP_H__ */