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1 | f0cbd3ec | bellard | /*
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2 | f0cbd3ec | bellard | * Copyright (c) 1982, 1986, 1993
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3 | f0cbd3ec | bellard | * The Regents of the University of California. All rights reserved.
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4 | f0cbd3ec | bellard | *
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5 | f0cbd3ec | bellard | * Redistribution and use in source and binary forms, with or without
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6 | f0cbd3ec | bellard | * modification, are permitted provided that the following conditions
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7 | f0cbd3ec | bellard | * are met:
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8 | f0cbd3ec | bellard | * 1. Redistributions of source code must retain the above copyright
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9 | f0cbd3ec | bellard | * notice, this list of conditions and the following disclaimer.
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10 | f0cbd3ec | bellard | * 2. Redistributions in binary form must reproduce the above copyright
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11 | f0cbd3ec | bellard | * notice, this list of conditions and the following disclaimer in the
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12 | f0cbd3ec | bellard | * documentation and/or other materials provided with the distribution.
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13 | 2f5f8996 | aliguori | * 3. Neither the name of the University nor the names of its contributors
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14 | f0cbd3ec | bellard | * may be used to endorse or promote products derived from this software
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15 | f0cbd3ec | bellard | * without specific prior written permission.
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16 | f0cbd3ec | bellard | *
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17 | f0cbd3ec | bellard | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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18 | f0cbd3ec | bellard | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | f0cbd3ec | bellard | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | f0cbd3ec | bellard | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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21 | f0cbd3ec | bellard | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | f0cbd3ec | bellard | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | f0cbd3ec | bellard | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | f0cbd3ec | bellard | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | f0cbd3ec | bellard | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | f0cbd3ec | bellard | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | f0cbd3ec | bellard | * SUCH DAMAGE.
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28 | f0cbd3ec | bellard | *
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29 | f0cbd3ec | bellard | * @(#)udp.h 8.1 (Berkeley) 6/10/93
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30 | f0cbd3ec | bellard | * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp
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31 | f0cbd3ec | bellard | */
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32 | f0cbd3ec | bellard | |
33 | f0cbd3ec | bellard | #ifndef _UDP_H_
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34 | f0cbd3ec | bellard | #define _UDP_H_
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35 | f0cbd3ec | bellard | |
36 | f0cbd3ec | bellard | #define UDP_TTL 0x60 |
37 | f0cbd3ec | bellard | #define UDP_UDPDATALEN 16192 |
38 | f0cbd3ec | bellard | |
39 | f0cbd3ec | bellard | extern struct socket *udp_last_so; |
40 | f0cbd3ec | bellard | |
41 | f0cbd3ec | bellard | /*
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42 | f0cbd3ec | bellard | * Udp protocol header.
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43 | f0cbd3ec | bellard | * Per RFC 768, September, 1981.
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44 | f0cbd3ec | bellard | */
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45 | f0cbd3ec | bellard | struct udphdr {
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46 | f0cbd3ec | bellard | u_int16_t uh_sport; /* source port */
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47 | f0cbd3ec | bellard | u_int16_t uh_dport; /* destination port */
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48 | f0cbd3ec | bellard | int16_t uh_ulen; /* udp length */
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49 | f0cbd3ec | bellard | u_int16_t uh_sum; /* udp checksum */
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50 | f0cbd3ec | bellard | }; |
51 | f0cbd3ec | bellard | |
52 | f0cbd3ec | bellard | /*
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53 | f0cbd3ec | bellard | * UDP kernel structures and variables.
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54 | f0cbd3ec | bellard | */
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55 | f0cbd3ec | bellard | struct udpiphdr {
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56 | f0cbd3ec | bellard | struct ipovly ui_i; /* overlaid ip structure */ |
57 | f0cbd3ec | bellard | struct udphdr ui_u; /* udp header */ |
58 | f0cbd3ec | bellard | }; |
59 | 429d0a3d | blueswir1 | #define ui_mbuf ui_i.ih_mbuf.mptr
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60 | f0cbd3ec | bellard | #define ui_x1 ui_i.ih_x1
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61 | f0cbd3ec | bellard | #define ui_pr ui_i.ih_pr
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62 | f0cbd3ec | bellard | #define ui_len ui_i.ih_len
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63 | f0cbd3ec | bellard | #define ui_src ui_i.ih_src
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64 | f0cbd3ec | bellard | #define ui_dst ui_i.ih_dst
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65 | f0cbd3ec | bellard | #define ui_sport ui_u.uh_sport
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66 | f0cbd3ec | bellard | #define ui_dport ui_u.uh_dport
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67 | f0cbd3ec | bellard | #define ui_ulen ui_u.uh_ulen
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68 | f0cbd3ec | bellard | #define ui_sum ui_u.uh_sum
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69 | f0cbd3ec | bellard | |
70 | 31a60e22 | blueswir1 | #ifdef LOG_ENABLED
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71 | f0cbd3ec | bellard | struct udpstat {
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72 | f0cbd3ec | bellard | /* input statistics: */
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73 | f0cbd3ec | bellard | u_long udps_ipackets; /* total input packets */
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74 | f0cbd3ec | bellard | u_long udps_hdrops; /* packet shorter than header */
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75 | f0cbd3ec | bellard | u_long udps_badsum; /* checksum error */
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76 | f0cbd3ec | bellard | u_long udps_badlen; /* data length larger than packet */
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77 | f0cbd3ec | bellard | u_long udps_noport; /* no socket on port */
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78 | f0cbd3ec | bellard | u_long udps_noportbcast; /* of above, arrived as broadcast */
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79 | f0cbd3ec | bellard | u_long udps_fullsock; /* not delivered, input socket full */
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80 | f0cbd3ec | bellard | u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
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81 | f0cbd3ec | bellard | /* output statistics: */
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82 | f0cbd3ec | bellard | u_long udps_opackets; /* total output packets */
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83 | f0cbd3ec | bellard | }; |
84 | 31a60e22 | blueswir1 | #endif
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85 | f0cbd3ec | bellard | |
86 | f0cbd3ec | bellard | /*
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87 | f0cbd3ec | bellard | * Names for UDP sysctl objects
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88 | f0cbd3ec | bellard | */
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89 | f0cbd3ec | bellard | #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ |
90 | f0cbd3ec | bellard | #define UDPCTL_MAXID 2 |
91 | f0cbd3ec | bellard | |
92 | 31a60e22 | blueswir1 | #ifdef LOG_ENABLED
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93 | f0cbd3ec | bellard | extern struct udpstat udpstat; |
94 | 31a60e22 | blueswir1 | #endif
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95 | 31a60e22 | blueswir1 | |
96 | f0cbd3ec | bellard | extern struct socket udb; |
97 | 101c5935 | bellard | struct mbuf;
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98 | f0cbd3ec | bellard | |
99 | f0cbd3ec | bellard | void udp_init _P((void)); |
100 | f0cbd3ec | bellard | void udp_input _P((register struct mbuf *, int)); |
101 | f0cbd3ec | bellard | int udp_output _P((struct socket *, struct mbuf *, struct sockaddr_in *)); |
102 | f0cbd3ec | bellard | int udp_attach _P((struct socket *)); |
103 | f0cbd3ec | bellard | void udp_detach _P((struct socket *)); |
104 | f0cbd3ec | bellard | struct socket * udp_listen _P((u_int, u_int32_t, u_int, int)); |
105 | 5fafdf24 | ths | int udp_output2(struct socket *so, struct mbuf *m, |
106 | f0cbd3ec | bellard | struct sockaddr_in *saddr, struct sockaddr_in *daddr, |
107 | f0cbd3ec | bellard | int iptos);
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108 | f0cbd3ec | bellard | #endif |