2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
\r
3 * All rights reserved.
\r
5 * Redistribution and use in source and binary forms, with or without modification,
\r
6 * are permitted provided that the following conditions are met:
\r
8 * 1. Redistributions of source code must retain the above copyright notice,
\r
9 * this list of conditions and the following disclaimer.
\r
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
\r
11 * this list of conditions and the following disclaimer in the documentation
\r
12 * and/or other materials provided with the distribution.
\r
13 * 3. The name of the author may not be used to endorse or promote products
\r
14 * derived from this software without specific prior written permission.
\r
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
\r
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
\r
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
\r
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
\r
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
\r
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
\r
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
\r
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
\r
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
\r
27 * This file is part of the lwIP TCP/IP stack.
\r
29 * Author: Adam Dunkels <adam@sics.se>
\r
32 #ifndef __LWIP_UDP_H__
\r
33 #define __LWIP_UDP_H__
\r
35 #include "lwip/arch.h"
\r
37 #include "lwip/pbuf.h"
\r
38 #include "lwip/inet.h"
\r
39 #include "lwip/ip.h"
\r
44 PACK_STRUCT_FIELD(u16_t src);
\r
45 PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */
\r
46 PACK_STRUCT_FIELD(u16_t len);
\r
47 PACK_STRUCT_FIELD(u16_t chksum);
\r
48 } PACK_STRUCT_STRUCT;
\r
50 #define UDP_FLAGS_NOCHKSUM 0x01U
\r
51 #define UDP_FLAGS_UDPLITE 0x02U
\r
52 #define UDP_FLAGS_CONNECTED 0x04U
\r
55 /* Common members of all PCB types */
\r
58 /* Protocol specific PCB members */
\r
60 struct udp_pcb *next;
\r
63 u16_t local_port, remote_port;
\r
67 void (* recv)(void *arg, struct udp_pcb *pcb, struct pbuf *p,
\r
68 struct ip_addr *addr, u16_t port);
\r
72 /* The following functions is the application layer interface to the
\r
74 struct udp_pcb * udp_new (void);
\r
75 void udp_remove (struct udp_pcb *pcb);
\r
76 err_t udp_bind (struct udp_pcb *pcb, struct ip_addr *ipaddr,
\r
78 err_t udp_connect (struct udp_pcb *pcb, struct ip_addr *ipaddr,
\r
80 void udp_disconnect (struct udp_pcb *pcb);
\r
81 void udp_recv (struct udp_pcb *pcb,
\r
82 void (* recv)(void *arg, struct udp_pcb *upcb,
\r
84 struct ip_addr *addr,
\r
87 err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port);
\r
88 err_t udp_send (struct udp_pcb *pcb, struct pbuf *p);
\r
90 #define udp_flags(pcb) ((pcb)->flags)
\r
91 #define udp_setflags(pcb, f) ((pcb)->flags = (f))
\r
93 /* The following functions are the lower layer interface to UDP. */
\r
94 void udp_input (struct pbuf *p, struct netif *inp);
\r
95 void udp_init (void);
\r
98 void udp_debug_print(struct udp_hdr *udphdr);
\r
100 #define udp_debug_print(udphdr)
\r
102 #endif /* __LWIP_UDP_H__ */
\r