udp_var.h
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上传日期:2008-05-12
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文件大小:4k
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VxWorks
开发平台:
C/C++
- /* udp_var.h - UDP kernel structure and variable header file */
- /* Copyright 1984-1996 Wind River Systems, Inc. */
- /*
- * Copyright (c) 1982, 1986, 1989, 1993
- * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
- *
- * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
- */
- /*
- modification history
- --------------------
- 01a,03mar96,vin created from BSD4.4 stuff,integrated with 02j.
- */
- #ifndef __INCudp_varh
- #define __INCudp_varh
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* includes */
- #include "net/mbuf.h"
- #include "netinet/in_pcb.h"
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 1 /* tell gcc960 not to optimize alignments */
- #endif /* CPU_FAMILY==I960 */
- /* UDP kernel structures and variables. */
- struct udpiphdr
- {
- struct ipovly ui_i; /* overlaid ip structure */
- struct udphdr ui_u; /* udp header */
- };
- #define ui_next ui_i.ih_next
- #define ui_prev ui_i.ih_prev
- #define ui_x1 ui_i.ih_x1
- #define ui_pr ui_i.ih_pr
- #define ui_len ui_i.ih_len
- #define ui_src ui_i.ih_src
- #define ui_dst ui_i.ih_dst
- #define ui_sport ui_u.uh_sport
- #define ui_dport ui_u.uh_dport
- #define ui_ulen ui_u.uh_ulen
- #define ui_sum ui_u.uh_sum
- struct udpstat {
- /* input statistics: */
- u_long udps_ipackets; /* total input packets */
- u_long udps_hdrops; /* packet shorter than header */
- u_long udps_badsum; /* checksum error */
- u_long udps_badlen; /* data length larger than packet */
- u_long udps_noport; /* no socket on port */
- u_long udps_noportbcast; /* of above, arrived as broadcast */
- u_long udps_fullsock; /* not delivered, input socket full */
- u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
- u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
- /* output statistics: */
- u_long udps_opackets; /* total output packets */
- };
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 0 /* turn off alignment requirement */
- #endif /* CPU_FAMILY==I960 */
- extern long udpNoPorts; /* MIB-II support. Counts # of packstes drop */
- #define UDP_TTL 30 /* default time to live for UDP packets */
- /*
- * Names for UDP sysctl objects
- */
- #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
- #define UDPCTL_MAXID 2
- #define UDPCTL_NAMES {
- { 0, 0 },
- { "checksum", CTLTYPE_INT },
- void udp_ctlinput (int, struct sockaddr *, struct ip *);
- void udp_init (void);
- void udp_input (struct mbuf *, int);
- int udp_output (struct inpcb *,
- struct mbuf *, struct mbuf *, struct mbuf *);
- int udp_sysctl (int *, u_int, void *, size_t *, void *, size_t);
- int udp_usrreq (struct socket *,
- int, struct mbuf *, struct mbuf *, struct mbuf *);
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCudp_varh */