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1c79356b A |
1 | /* |
2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
3 | * | |
8ad349bb | 4 | * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ |
1c79356b | 5 | * |
8ad349bb A |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. The rights granted to you under the | |
10 | * License may not be used to create, or enable the creation or | |
11 | * redistribution of, unlawful or unlicensed copies of an Apple operating | |
12 | * system, or to circumvent, violate, or enable the circumvention or | |
13 | * violation of, any terms of an Apple operating system software license | |
14 | * agreement. | |
15 | * | |
16 | * Please obtain a copy of the License at | |
17 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
18 | * file. | |
19 | * | |
20 | * The Original Code and all software distributed under the License are | |
21 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
22 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
23 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
24 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
25 | * Please see the License for the specific language governing rights and | |
26 | * limitations under the License. | |
27 | * | |
28 | * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ | |
1c79356b | 29 | */ |
9bccf70c A |
30 | /* |
31 | * Copyright (c) 1982, 1986, 1993 | |
32 | * The Regents of the University of California. All rights reserved. | |
33 | */ | |
1c79356b | 34 | |
9bccf70c | 35 | #include <libsa/types.h> |
1c79356b A |
36 | #include <libkern/OSByteOrder.h> /* OSSwap functions */ |
37 | ||
38 | #define ETHERMTU 1500 | |
39 | #define ETHERHDRSIZE 14 | |
40 | #define ETHERCRC 4 | |
41 | #define KDP_MAXPACKET (ETHERHDRSIZE + ETHERMTU + ETHERCRC) | |
42 | ||
43 | struct in_addr { | |
44 | u_long s_addr; | |
45 | }; | |
46 | ||
47 | struct ether_addr { | |
48 | u_char ether_addr_octet[6]; | |
49 | }; | |
50 | ||
51 | typedef struct ether_addr enet_addr_t; | |
52 | ||
9bccf70c A |
53 | extern struct ether_addr kdp_get_mac_addr(void); |
54 | unsigned int kdp_get_ip_address(void); | |
55 | ||
1c79356b A |
56 | struct ipovly { |
57 | caddr_t ih_next, ih_prev; /* for protocol sequence q's */ | |
58 | u_char ih_x1; /* (unused) */ | |
59 | u_char ih_pr; /* protocol */ | |
60 | short ih_len; /* protocol length */ | |
61 | struct in_addr ih_src; /* source internet address */ | |
62 | struct in_addr ih_dst; /* destination internet address */ | |
63 | }; | |
64 | ||
65 | struct udphdr { | |
66 | u_short uh_sport; /* source port */ | |
67 | u_short uh_dport; /* destination port */ | |
68 | short uh_ulen; /* udp length */ | |
69 | u_short uh_sum; /* udp checksum */ | |
70 | }; | |
71 | ||
72 | struct udpiphdr { | |
73 | struct ipovly ui_i; /* overlaid ip structure */ | |
74 | struct udphdr ui_u; /* udp header */ | |
75 | }; | |
76 | #define ui_next ui_i.ih_next | |
77 | #define ui_prev ui_i.ih_prev | |
78 | #define ui_x1 ui_i.ih_x1 | |
79 | #define ui_pr ui_i.ih_pr | |
80 | #define ui_len ui_i.ih_len | |
81 | #define ui_src ui_i.ih_src | |
82 | #define ui_dst ui_i.ih_dst | |
83 | #define ui_sport ui_u.uh_sport | |
84 | #define ui_dport ui_u.uh_dport | |
85 | #define ui_ulen ui_u.uh_ulen | |
86 | #define ui_sum ui_u.uh_sum | |
87 | ||
88 | struct ip { | |
89 | union { | |
90 | u_long ip_w; | |
91 | struct { | |
92 | unsigned int | |
55e303ae | 93 | #ifdef __LITTLE_ENDIAN__ |
1c79356b A |
94 | ip_xhl:4, /* header length */ |
95 | ip_xv:4, /* version */ | |
96 | ip_xtos:8, /* type of service */ | |
97 | ip_xlen:16; /* total length */ | |
98 | #endif | |
55e303ae | 99 | #ifdef __BIG_ENDIAN__ |
1c79356b A |
100 | ip_xv:4, /* version */ |
101 | ip_xhl:4, /* header length */ | |
102 | ip_xtos:8, /* type of service */ | |
103 | ip_xlen:16; /* total length */ | |
104 | #endif | |
105 | } ip_x; | |
106 | } ip_vhltl; | |
107 | u_short ip_id; /* identification */ | |
108 | short ip_off; /* fragment offset field */ | |
109 | #define IP_DF 0x4000 /* dont fragment flag */ | |
110 | #define IP_MF 0x2000 /* more fragments flag */ | |
111 | #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */ | |
112 | u_char ip_ttl; /* time to live */ | |
113 | u_char ip_p; /* protocol */ | |
114 | u_short ip_sum; /* checksum */ | |
115 | struct in_addr ip_src,ip_dst; /* source and dest address */ | |
116 | }; | |
117 | #define ip_v ip_vhltl.ip_x.ip_xv | |
118 | #define ip_hl ip_vhltl.ip_x.ip_xhl | |
119 | #define ip_tos ip_vhltl.ip_x.ip_xtos | |
120 | #define ip_len ip_vhltl.ip_x.ip_xlen | |
121 | ||
122 | #define IPPROTO_UDP 17 | |
123 | #define IPVERSION 4 | |
124 | ||
125 | struct ether_header { | |
126 | u_char ether_dhost[6]; | |
127 | u_char ether_shost[6]; | |
128 | u_short ether_type; | |
129 | }; | |
130 | ||
131 | typedef struct ether_header ether_header_t; | |
132 | ||
133 | #define ETHERTYPE_IP 0x0800 /* IP protocol */ | |
134 | ||
135 | #define ntohs(x) OSSwapBigToHostInt16(x) | |
55e303ae | 136 | #define ntohl(x) OSSwapBigToHostInt32(x) |
1c79356b | 137 | #define htons(x) OSSwapHostToBigInt16(x) |
55e303ae | 138 | #define htonl(x) OSSwapHostToBigInt32(x) |
9bccf70c A |
139 | /* |
140 | * Ethernet Address Resolution Protocol. | |
141 | * | |
142 | * See RFC 826 for protocol description. Structure below is adapted | |
143 | * to resolving internet addresses. Field names used correspond to | |
144 | * RFC 826. | |
145 | */ | |
146 | ||
147 | #define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */ | |
148 | ||
149 | struct arphdr { | |
150 | u_short ar_hrd; /* format of hardware address */ | |
151 | #define ARPHRD_ETHER 1 /* ethernet hardware format */ | |
152 | #define ARPHRD_FRELAY 15 /* frame relay hardware format */ | |
153 | u_short ar_pro; /* format of protocol address */ | |
154 | u_char ar_hln; /* length of hardware address */ | |
155 | u_char ar_pln; /* length of protocol address */ | |
156 | u_short ar_op; /* one of: */ | |
157 | #define ARPOP_REQUEST 1 /* request to resolve address */ | |
158 | #define ARPOP_REPLY 2 /* response to previous request */ | |
159 | #define ARPOP_REVREQUEST 3 /* request protocol address given hardware */ | |
160 | #define ARPOP_REVREPLY 4 /* response giving protocol address */ | |
161 | #define ARPOP_INVREQUEST 8 /* request to identify peer */ | |
162 | #define ARPOP_INVREPLY 9 /* response identifying peer */ | |
163 | }; | |
164 | ||
165 | #define ETHER_ADDR_LEN 6 | |
166 | ||
167 | struct ether_arp { | |
168 | struct arphdr ea_hdr; /* fixed-size header */ | |
169 | u_char arp_sha[ETHER_ADDR_LEN]; /* sender hardware address */ | |
170 | u_char arp_spa[4]; /* sender protocol address */ | |
171 | u_char arp_tha[ETHER_ADDR_LEN]; /* target hardware address */ | |
172 | u_char arp_tpa[4]; /* target protocol address */ | |
173 | }; | |
174 | #define arp_hrd ea_hdr.ar_hrd | |
175 | #define arp_pro ea_hdr.ar_pro | |
176 | #define arp_hln ea_hdr.ar_hln | |
177 | #define arp_pln ea_hdr.ar_pln | |
178 | #define arp_op ea_hdr.ar_op |