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https://github.com/freebsd/freebsd-src.git
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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
125 lines
4.4 KiB
C
125 lines
4.4 KiB
C
/*
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)udp_var.h 8.1 (Berkeley) 6/10/93
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* $FreeBSD$
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*/
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#ifndef _NETINET_UDP_VAR_H_
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#define _NETINET_UDP_VAR_H_
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/*
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* UDP kernel structures and variables.
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*/
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struct udpiphdr {
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struct ipovly ui_i; /* overlaid ip structure */
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struct udphdr ui_u; /* udp header */
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};
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#define ui_x1 ui_i.ih_x1
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#define ui_pr ui_i.ih_pr
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#define ui_len ui_i.ih_len
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#define ui_src ui_i.ih_src
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#define ui_dst ui_i.ih_dst
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#define ui_sport ui_u.uh_sport
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#define ui_dport ui_u.uh_dport
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#define ui_ulen ui_u.uh_ulen
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#define ui_sum ui_u.uh_sum
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struct udpcb {
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/* XXX - these should be by reference so we can do options quickly */
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struct ip udb_ip;
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struct udphdr udb_uh;
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struct sockaddr_in udb_conn;
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struct in_hostcache *udb_hc;
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struct mbuf *udb_queue;
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};
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#define inptoudpcb(inp) ((struct udpdb *)(inp)->inp_ppcb)
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struct udpstat {
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/* input statistics: */
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u_long udps_ipackets; /* total input packets */
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u_long udps_hdrops; /* packet shorter than header */
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u_long udps_badsum; /* checksum error */
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u_long udps_nosum; /* no checksum */
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u_long udps_badlen; /* data length larger than packet */
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u_long udps_noport; /* no socket on port */
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u_long udps_noportbcast; /* of above, arrived as broadcast */
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u_long udps_fullsock; /* not delivered, input socket full */
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u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
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u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
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/* output statistics: */
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u_long udps_opackets; /* total output packets */
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u_long udps_fastout; /* output packets on fast path */
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/* of no socket on port, arrived as multicast */
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u_long udps_noportmcast;
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};
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/*
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* Names for UDP sysctl objects
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*/
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#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
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#define UDPCTL_STATS 2 /* statistics (read-only) */
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#define UDPCTL_MAXDGRAM 3 /* max datagram size */
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#define UDPCTL_RECVSPACE 4 /* default receive buffer space */
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#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
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#define UDPCTL_MAXID 6
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#define UDPCTL_NAMES { \
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{ 0, 0 }, \
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{ "checksum", CTLTYPE_INT }, \
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{ "stats", CTLTYPE_STRUCT }, \
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{ "maxdgram", CTLTYPE_INT }, \
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{ "recvspace", CTLTYPE_INT }, \
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{ "pcblist", CTLTYPE_STRUCT }, \
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}
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#ifdef _KERNEL
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SYSCTL_DECL(_net_inet_udp);
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extern struct pr_usrreqs udp_usrreqs;
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extern struct inpcbhead udb;
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extern struct inpcbinfo udbinfo;
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extern u_long udp_sendspace;
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extern u_long udp_recvspace;
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extern struct udpstat udpstat;
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extern int log_in_vain;
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void udp_ctlinput __P((int, struct sockaddr *, void *));
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void udp_init __P((void));
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void udp_input __P((struct mbuf *, int, int));
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void udp_notify __P((struct inpcb *inp, int errno));
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int udp_shutdown __P((struct socket *so));
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#endif
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#endif
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