URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [lwIP_MCF5235_GCC/] [lwip/] [src/] [include/] [lwip/] [udp.h] - Rev 583
Compare with Previous | Blame | View Log
/* * 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/arch.h" #include "lwip/pbuf.h" #include "lwip/inet.h" #include "lwip/ip.h" #define UDP_HLEN 8 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; #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; u16_t local_port, remote_port; u16_t chksum_len; void (* recv)(void *arg, struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *addr, u16_t port); void *recv_arg; }; /* 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 (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); void udp_init (void); #if UDP_DEBUG void udp_debug_print(struct udp_hdr *udphdr); #else #define udp_debug_print(udphdr) #endif #endif /* __LWIP_UDP_H__ */