The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1982, 1986, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 13 | * 3. Neither the name of the University nor the names of its contributors |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 14 | * may be used to endorse or promote products derived from this software |
| 15 | * without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * @(#)udp.h 8.1 (Berkeley) 6/10/93 |
| 30 | * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp |
| 31 | */ |
| 32 | |
| 33 | #ifndef _UDP_H_ |
| 34 | #define _UDP_H_ |
| 35 | |
| 36 | #include "helper.h" |
| 37 | |
| 38 | #define UDP_TTL 0x60 |
| 39 | #define UDP_UDPDATALEN 16192 |
| 40 | |
| 41 | extern struct socket *udp_last_so; |
| 42 | |
| 43 | /* |
| 44 | * Udp protocol header. |
| 45 | * Per RFC 768, September, 1981. |
| 46 | */ |
| 47 | struct udphdr { |
| 48 | port_t uh_sport; /* source port */ |
| 49 | port_t uh_dport; /* destination port */ |
| 50 | int16_t uh_ulen; /* udp length */ |
| 51 | u_int16_t uh_sum; /* udp checksum */ |
| 52 | }; |
| 53 | |
| 54 | /* |
| 55 | * UDP kernel structures and variables. |
| 56 | */ |
| 57 | struct udpiphdr { |
| 58 | struct ipovly ui_i; /* overlaid ip structure */ |
| 59 | struct udphdr ui_u; /* udp header */ |
| 60 | }; |
| 61 | #define ui_mbuf ui_i.ih_mbuf.mptr |
| 62 | #define ui_x1 ui_i.ih_x1 |
| 63 | #define ui_pr ui_i.ih_pr |
| 64 | #define ui_len ui_i.ih_len |
| 65 | #define ui_src ui_i.ih_src |
| 66 | #define ui_dst ui_i.ih_dst |
| 67 | #define ui_sport ui_u.uh_sport |
| 68 | #define ui_dport ui_u.uh_dport |
| 69 | #define ui_ulen ui_u.uh_ulen |
| 70 | #define ui_sum ui_u.uh_sum |
| 71 | |
| 72 | struct udpstat { |
| 73 | /* input statistics: */ |
| 74 | u_long udps_ipackets; /* total input packets */ |
| 75 | u_long udps_hdrops; /* packet shorter than header */ |
| 76 | u_long udps_badsum; /* checksum error */ |
| 77 | u_long udps_badlen; /* data length larger than packet */ |
| 78 | u_long udps_noport; /* no socket on port */ |
| 79 | u_long udps_noportbcast; /* of above, arrived as broadcast */ |
| 80 | u_long udps_fullsock; /* not delivered, input socket full */ |
| 81 | u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ |
| 82 | /* output statistics: */ |
| 83 | u_long udps_opackets; /* total output packets */ |
| 84 | }; |
| 85 | |
| 86 | /* |
| 87 | * Names for UDP sysctl objects |
| 88 | */ |
| 89 | #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ |
| 90 | #define UDPCTL_MAXID 2 |
| 91 | |
| 92 | extern struct udpstat udpstat; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 93 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 94 | extern struct socket udb; |
| 95 | struct mbuf; |
| 96 | |
| 97 | void udp_init _P((void)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 98 | void udp_input _P((register struct mbuf *, int)); |
| 99 | int udp_output_ _P((struct socket *, struct mbuf *, SockAddress *)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 100 | int udp_attach _P((struct socket *)); |
| 101 | void udp_detach _P((struct socket *)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 102 | struct socket * udp_listen _P((u_int, u_int32_t, u_int, int)); |
| 103 | int udp_unlisten _P((u_int)); |
| 104 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 105 | int udp_output2_(struct socket *so, struct mbuf *m, |
| 106 | const SockAddress *saddr, const SockAddress *daddr, |
| 107 | int iptos); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 108 | #endif |