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 | * 4. Neither the name of the University nor the names of its contributors |
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14 | * may be used to endorse or promote products derived from this software |
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15 | * without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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27 | * SUCH DAMAGE. |
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28 | * |
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29 | * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 |
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30 | * $FreeBSD: src/sys/netinet/udp_var.h,v 1.29 2005/01/07 01:45:45 imp Exp $ |
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31 | */ |
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32 | |
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33 | /* |
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34 | * $Id$ |
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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_next ui_i.ih_next |
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48 | #define ui_prev ui_i.ih_prev |
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49 | #define ui_x1 ui_i.ih_x1 |
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50 | #define ui_pr ui_i.ih_pr |
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51 | #define ui_len ui_i.ih_len |
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52 | #define ui_src ui_i.ih_src |
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53 | #define ui_dst ui_i.ih_dst |
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54 | #define ui_sport ui_u.uh_sport |
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55 | #define ui_dport ui_u.uh_dport |
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56 | #define ui_ulen ui_u.uh_ulen |
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57 | #define ui_sum ui_u.uh_sum |
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58 | |
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59 | struct udpstat { |
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60 | /* input statistics: */ |
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61 | u_long udps_ipackets; /* total input packets */ |
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62 | u_long udps_hdrops; /* packet shorter than header */ |
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63 | u_long udps_badsum; /* checksum error */ |
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64 | u_long udps_badlen; /* data length larger than packet */ |
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65 | u_long udps_noport; /* no socket on port */ |
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66 | u_long udps_noportbcast; /* of above, arrived as broadcast */ |
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67 | u_long udps_fullsock; /* not delivered, input socket full */ |
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68 | u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ |
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69 | u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */ |
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70 | /* output statistics: */ |
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71 | u_long udps_opackets; /* total output packets */ |
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72 | }; |
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73 | |
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74 | /* |
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75 | * Names for UDP sysctl objects |
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76 | */ |
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77 | #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ |
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78 | #define UDPCTL_STATS 2 /* statistics (read-only) */ |
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79 | #define UDPCTL_MAXDGRAM 3 /* max datagram size */ |
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80 | #define UDPCTL_RECVSPACE 4 /* default receive buffer space */ |
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81 | #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */ |
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82 | #define UDPCTL_MAXID 6 |
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83 | |
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84 | #define UDPCTL_NAMES { \ |
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85 | { 0, 0 }, \ |
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86 | { "checksum", CTLTYPE_INT }, \ |
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87 | { "stats", CTLTYPE_STRUCT }, \ |
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88 | { "maxdgram", CTLTYPE_INT }, \ |
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89 | { "recvspace", CTLTYPE_INT }, \ |
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90 | } |
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91 | |
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92 | #ifdef _KERNEL |
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93 | SYSCTL_DECL(_net_inet_udp); |
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94 | |
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95 | extern struct inpcbhead udb; |
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96 | extern struct inpcbinfo udbinfo; |
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97 | extern struct udpstat udpstat; |
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98 | |
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99 | void udp_ctlinput(int, struct sockaddr *, void *); |
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100 | void udp_init(void); |
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101 | void udp_input(struct mbuf *, int); |
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102 | int udp_usrreq(struct socket *, |
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103 | int, struct mbuf *, struct mbuf *, struct mbuf *); |
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104 | #endif |
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105 | |
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106 | #endif |
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