udp_var.h revision 190962
1139823Simp/*- 21541Srgrimes * Copyright (c) 1982, 1986, 1989, 1993 3166841Srwatson * The Regents of the University of California. 4166841Srwatson * All rights reserved. 51541Srgrimes * 61541Srgrimes * Redistribution and use in source and binary forms, with or without 71541Srgrimes * modification, are permitted provided that the following conditions 81541Srgrimes * are met: 91541Srgrimes * 1. Redistributions of source code must retain the above copyright 101541Srgrimes * notice, this list of conditions and the following disclaimer. 111541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 121541Srgrimes * notice, this list of conditions and the following disclaimer in the 131541Srgrimes * documentation and/or other materials provided with the distribution. 141541Srgrimes * 4. Neither the name of the University nor the names of its contributors 151541Srgrimes * may be used to endorse or promote products derived from this software 161541Srgrimes * without specific prior written permission. 171541Srgrimes * 181541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 191541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 201541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 211541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 221541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 231541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 241541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 251541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 261541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 271541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 281541Srgrimes * SUCH DAMAGE. 291541Srgrimes * 301541Srgrimes * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 3150477Speter * $FreeBSD: head/sys/netinet/udp_var.h 190962 2009-04-12 11:42:40Z rwatson $ 321541Srgrimes */ 331541Srgrimes 342169Spaul#ifndef _NETINET_UDP_VAR_H_ 35166841Srwatson#define _NETINET_UDP_VAR_H_ 362169Spaul 371541Srgrimes/* 381541Srgrimes * UDP kernel structures and variables. 391541Srgrimes */ 40166841Srwatsonstruct udpiphdr { 41166841Srwatson struct ipovly ui_i; /* overlaid ip structure */ 42166841Srwatson struct udphdr ui_u; /* udp header */ 431541Srgrimes}; 441541Srgrimes#define ui_x1 ui_i.ih_x1 451541Srgrimes#define ui_pr ui_i.ih_pr 461541Srgrimes#define ui_len ui_i.ih_len 471541Srgrimes#define ui_src ui_i.ih_src 481541Srgrimes#define ui_dst ui_i.ih_dst 491541Srgrimes#define ui_sport ui_u.uh_sport 501541Srgrimes#define ui_dport ui_u.uh_dport 511541Srgrimes#define ui_ulen ui_u.uh_ulen 521541Srgrimes#define ui_sum ui_u.uh_sum 531541Srgrimes 54166841Srwatsonstruct udpstat { 551541Srgrimes /* input statistics: */ 561541Srgrimes u_long udps_ipackets; /* total input packets */ 571541Srgrimes u_long udps_hdrops; /* packet shorter than header */ 581541Srgrimes u_long udps_badsum; /* checksum error */ 5952904Sshin u_long udps_nosum; /* no checksum */ 601541Srgrimes u_long udps_badlen; /* data length larger than packet */ 611541Srgrimes u_long udps_noport; /* no socket on port */ 621541Srgrimes u_long udps_noportbcast; /* of above, arrived as broadcast */ 631541Srgrimes u_long udps_fullsock; /* not delivered, input socket full */ 641541Srgrimes u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ 6516143Swollman u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */ 661541Srgrimes /* output statistics: */ 671541Srgrimes u_long udps_opackets; /* total output packets */ 6828270Swollman u_long udps_fastout; /* output packets on fast path */ 6952904Sshin /* of no socket on port, arrived as multicast */ 7052904Sshin u_long udps_noportmcast; 71170613Sbms u_long udps_filtermcast; /* blocked by multicast filter */ 721541Srgrimes}; 731541Srgrimes 74190962Srwatson#ifdef _KERNEL 75190962Srwatson#define UDPSTAT_ADD(name, val) V_udpstat.name += (val) 76190962Srwatson#define UDPSTAT_INC(name) UDPSTAT_ADD(name, 1) 77190962Srwatson#endif 78190962Srwatson 791541Srgrimes/* 80166841Srwatson * Names for UDP sysctl objects. 811541Srgrimes */ 821541Srgrimes#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ 83166841Srwatson#define UDPCTL_STATS 2 /* statistics (read-only) */ 846472Swollman#define UDPCTL_MAXDGRAM 3 /* max datagram size */ 856472Swollman#define UDPCTL_RECVSPACE 4 /* default receive buffer space */ 8636079Swollman#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */ 87166841Srwatson#define UDPCTL_MAXID 6 881541Srgrimes 89166841Srwatson#define UDPCTL_NAMES { \ 90166841Srwatson { 0, 0 }, \ 91166841Srwatson { "checksum", CTLTYPE_INT }, \ 92166841Srwatson { "stats", CTLTYPE_STRUCT }, \ 93166841Srwatson { "maxdgram", CTLTYPE_INT }, \ 94166841Srwatson { "recvspace", CTLTYPE_INT }, \ 95166841Srwatson { "pcblist", CTLTYPE_STRUCT }, \ 961541Srgrimes} 971541Srgrimes 9855205Speter#ifdef _KERNEL 9944078SdfrSYSCTL_DECL(_net_inet_udp); 10044078Sdfr 101166841Srwatsonextern struct pr_usrreqs udp_usrreqs; 102185937Sbz 103185937Sbz#ifdef VIMAGE_GLOBALS 104166841Srwatsonextern struct inpcbhead udb; 105166841Srwatsonextern struct inpcbinfo udbinfo; 106185937Sbzextern struct udpstat udpstat; 107185937Sbzextern int udp_blackhole; 108185937Sbz#endif 109166841Srwatsonextern u_long udp_sendspace; 110166841Srwatsonextern u_long udp_recvspace; 111166842Srwatsonextern int udp_log_in_vain; 1121541Srgrimes 113166841Srwatsonvoid udp_ctlinput(int, struct sockaddr *, void *); 114166841Srwatsonvoid udp_init(void); 115166841Srwatsonvoid udp_input(struct mbuf *, int); 116166841Srwatsonstruct inpcb *udp_notify(struct inpcb *inp, int errno); 117166841Srwatsonint udp_shutdown(struct socket *so); 118186813Srrs 119186813Srrs 120186813Srrstypedef void(*udp_tun_func_t)(struct mbuf *, int off, struct inpcb *); 121186813Srrsint udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f); 1221541Srgrimes#endif 1232169Spaul 1242169Spaul#endif 125