projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * The contents of this file constitute Original Code as defined in and | |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 11 | * | |
| 12 | * This Original Code and all software distributed under the License are | |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 19 | * | |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | ||
| 23 | #include <libkern/OSByteOrder.h> /* OSSwap functions */ | |
| 24 | ||
| 25 | #define ETHERMTU 1500 | |
| 26 | #define ETHERHDRSIZE 14 | |
| 27 | #define ETHERCRC 4 | |
| 28 | #define KDP_MAXPACKET (ETHERHDRSIZE + ETHERMTU + ETHERCRC) | |
| 29 | ||
| 30 | struct in_addr { | |
| 31 | u_long s_addr; | |
| 32 | }; | |
| 33 | ||
| 34 | struct ether_addr { | |
| 35 | u_char ether_addr_octet[6]; | |
| 36 | }; | |
| 37 | ||
| 38 | typedef struct ether_addr enet_addr_t; | |
| 39 | ||
| 40 | struct ipovly { | |
| 41 | caddr_t ih_next, ih_prev; /* for protocol sequence q's */ | |
| 42 | u_char ih_x1; /* (unused) */ | |
| 43 | u_char ih_pr; /* protocol */ | |
| 44 | short ih_len; /* protocol length */ | |
| 45 | struct in_addr ih_src; /* source internet address */ | |
| 46 | struct in_addr ih_dst; /* destination internet address */ | |
| 47 | }; | |
| 48 | ||
| 49 | struct udphdr { | |
| 50 | u_short uh_sport; /* source port */ | |
| 51 | u_short uh_dport; /* destination port */ | |
| 52 | short uh_ulen; /* udp length */ | |
| 53 | u_short uh_sum; /* udp checksum */ | |
| 54 | }; | |
| 55 | ||
| 56 | struct udpiphdr { | |
| 57 | struct ipovly ui_i; /* overlaid ip structure */ | |
| 58 | struct udphdr ui_u; /* udp header */ | |
| 59 | }; | |
| 60 | #define ui_next ui_i.ih_next | |
| 61 | #define ui_prev ui_i.ih_prev | |
| 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 ip { | |
| 73 | union { | |
| 74 | u_long ip_w; | |
| 75 | struct { | |
| 76 | unsigned int | |
| 77 | #if _BIG_ENDIAN == __LITTLE_ENDIAN__ | |
| 78 | ip_xhl:4, /* header length */ | |
| 79 | ip_xv:4, /* version */ | |
| 80 | ip_xtos:8, /* type of service */ | |
| 81 | ip_xlen:16; /* total length */ | |
| 82 | #endif | |
| 83 | #if _BIG_ENDIAN == __BIG_ENDIAN__ | |
| 84 | ip_xv:4, /* version */ | |
| 85 | ip_xhl:4, /* header length */ | |
| 86 | ip_xtos:8, /* type of service */ | |
| 87 | ip_xlen:16; /* total length */ | |
| 88 | #endif | |
| 89 | } ip_x; | |
| 90 | } ip_vhltl; | |
| 91 | u_short ip_id; /* identification */ | |
| 92 | short ip_off; /* fragment offset field */ | |
| 93 | #define IP_DF 0x4000 /* dont fragment flag */ | |
| 94 | #define IP_MF 0x2000 /* more fragments flag */ | |
| 95 | #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */ | |
| 96 | u_char ip_ttl; /* time to live */ | |
| 97 | u_char ip_p; /* protocol */ | |
| 98 | u_short ip_sum; /* checksum */ | |
| 99 | struct in_addr ip_src,ip_dst; /* source and dest address */ | |
| 100 | }; | |
| 101 | #define ip_v ip_vhltl.ip_x.ip_xv | |
| 102 | #define ip_hl ip_vhltl.ip_x.ip_xhl | |
| 103 | #define ip_tos ip_vhltl.ip_x.ip_xtos | |
| 104 | #define ip_len ip_vhltl.ip_x.ip_xlen | |
| 105 | ||
| 106 | #define IPPROTO_UDP 17 | |
| 107 | #define IPVERSION 4 | |
| 108 | ||
| 109 | struct ether_header { | |
| 110 | u_char ether_dhost[6]; | |
| 111 | u_char ether_shost[6]; | |
| 112 | u_short ether_type; | |
| 113 | }; | |
| 114 | ||
| 115 | typedef struct ether_header ether_header_t; | |
| 116 | ||
| 117 | #define ETHERTYPE_IP 0x0800 /* IP protocol */ | |
| 118 | ||
| 119 | #define ntohs(x) OSSwapBigToHostInt16(x) | |
| 120 | #define htons(x) OSSwapHostToBigInt16(x) |