| 1 | /* |
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| 2 | * Copyright (c) 1982, 1986, 1989, 1993 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * 1. Redistributions of source code must retain the above copyright |
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| 9 | * notice, this list of conditions and the following disclaimer. |
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer in the |
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| 12 | * documentation and/or other materials provided with the distribution. |
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| 13 | * 3. All advertising materials mentioning features or use of this software |
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| 14 | * must display the following acknowledgement: |
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| 15 | * This product includes software developed by the University of |
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| 16 | * California, Berkeley and its contributors. |
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| 17 | * 4. Neither the name of the University nor the names of its contributors |
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| 18 | * may be used to endorse or promote products derived from this software |
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| 19 | * without specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 31 | * SUCH DAMAGE. |
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| 32 | * |
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| 33 | * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 |
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| 34 | * $FreeBSD: src/sys/netinet/udp_var.h,v 1.25 2002/03/19 21:25:46 alfred Exp $ |
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| 35 | */ |
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| 36 | |
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| 37 | #ifndef _NETINET_UDP_VAR_H_ |
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| 38 | #define _NETINET_UDP_VAR_H_ |
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| 39 | |
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| 40 | /* |
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| 41 | * UDP kernel structures and variables. |
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| 42 | */ |
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| 43 | struct udpiphdr { |
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| 44 | struct ipovly ui_i; /* overlaid ip structure */ |
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| 45 | struct udphdr ui_u; /* udp header */ |
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| 46 | }; |
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| 47 | #define ui_x1 ui_i.ih_x1 |
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| 48 | #define ui_pr ui_i.ih_pr |
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| 49 | #define ui_len ui_i.ih_len |
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| 50 | #define ui_src ui_i.ih_src |
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| 51 | #define ui_dst ui_i.ih_dst |
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| 52 | #define ui_sport ui_u.uh_sport |
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| 53 | #define ui_dport ui_u.uh_dport |
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| 54 | #define ui_ulen ui_u.uh_ulen |
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| 55 | #define ui_sum ui_u.uh_sum |
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| 56 | |
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| 57 | struct udpstat { |
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| 58 | /* input statistics: */ |
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| 59 | u_long udps_ipackets; /* total input packets */ |
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| 60 | u_long udps_hdrops; /* packet shorter than header */ |
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| 61 | u_long udps_badsum; /* checksum error */ |
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| 62 | u_long udps_nosum; /* no checksum */ |
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| 63 | u_long udps_badlen; /* data length larger than packet */ |
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| 64 | u_long udps_noport; /* no socket on port */ |
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| 65 | u_long udps_noportbcast; /* of above, arrived as broadcast */ |
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| 66 | u_long udps_fullsock; /* not delivered, input socket full */ |
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| 67 | u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ |
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| 68 | u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */ |
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| 69 | /* output statistics: */ |
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| 70 | u_long udps_opackets; /* total output packets */ |
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| 71 | u_long udps_fastout; /* output packets on fast path */ |
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| 72 | /* of no socket on port, arrived as multicast */ |
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| 73 | u_long udps_noportmcast; |
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| 74 | }; |
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| 75 | |
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| 76 | /* |
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| 77 | * Names for UDP sysctl objects |
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| 78 | */ |
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| 79 | #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ |
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| 80 | #define UDPCTL_STATS 2 /* statistics (read-only) */ |
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| 81 | #define UDPCTL_MAXDGRAM 3 /* max datagram size */ |
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| 82 | #define UDPCTL_RECVSPACE 4 /* default receive buffer space */ |
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| 83 | #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */ |
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| 84 | #define UDPCTL_MAXID 6 |
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| 85 | |
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| 86 | #define UDPCTL_NAMES { \ |
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| 87 | { 0, 0 }, \ |
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| 88 | { "checksum", CTLTYPE_INT }, \ |
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| 89 | { "stats", CTLTYPE_STRUCT }, \ |
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| 90 | { "maxdgram", CTLTYPE_INT }, \ |
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| 91 | { "recvspace", CTLTYPE_INT }, \ |
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| 92 | { "pcblist", CTLTYPE_STRUCT }, \ |
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| 93 | } |
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| 94 | |
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| 95 | #ifdef _KERNEL |
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| 96 | SYSCTL_DECL(_net_inet_udp); |
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| 97 | |
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| 98 | extern struct pr_usrreqs udp_usrreqs; |
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| 99 | extern struct inpcbhead udb; |
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| 100 | extern struct inpcbinfo udbinfo; |
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| 101 | extern u_long udp_sendspace; |
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| 102 | extern u_long udp_recvspace; |
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| 103 | extern struct udpstat udpstat; |
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| 104 | extern int log_in_vain; |
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| 105 | |
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| 106 | void udp_ctlinput(int, struct sockaddr *, void *); |
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| 107 | void udp_init(void); |
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| 108 | void udp_input(struct mbuf *, int); |
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| 109 | |
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| 110 | void udp_notify(struct inpcb *inp, int errno); |
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| 111 | int udp_shutdown(struct socket *so); |
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| 112 | #endif |
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| 113 | |
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| 114 | #endif |
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