1 | /* |
2 | * Copyright (c) 2000-2016 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
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 License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * Copyright (c) 1986, 1993 |
30 | * The Regents of the University of California. All rights reserved. |
31 | * |
32 | * Redistribution and use in source and binary forms, with or without |
33 | * modification, are permitted provided that the following conditions |
34 | * are met: |
35 | * 1. Redistributions of source code must retain the above copyright |
36 | * notice, this list of conditions and the following disclaimer. |
37 | * 2. Redistributions in binary form must reproduce the above copyright |
38 | * notice, this list of conditions and the following disclaimer in the |
39 | * documentation and/or other materials provided with the distribution. |
40 | * 3. All advertising materials mentioning features or use of this software |
41 | * must display the following acknowledgement: |
42 | * This product includes software developed by the University of |
43 | * California, Berkeley and its contributors. |
44 | * 4. Neither the name of the University nor the names of its contributors |
45 | * may be used to endorse or promote products derived from this software |
46 | * without specific prior written permission. |
47 | * |
48 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
58 | * SUCH DAMAGE. |
59 | * |
60 | * @(#)if_arp.h 8.1 (Berkeley) 6/10/93 |
61 | * $FreeBSD: src/sys/net/if_arp.h,v 1.14.2.1 2000/07/11 20:46:55 archie Exp $ |
62 | */ |
63 | |
64 | #ifndef _NET_IF_ARP_H_ |
65 | #define _NET_IF_ARP_H_ |
66 | #include <stdint.h> |
67 | #include <sys/appleapiopts.h> |
68 | #include <netinet/in.h> |
69 | |
70 | /* |
71 | * Address Resolution Protocol. |
72 | * |
73 | * See RFC 826 for protocol description. ARP packets are variable |
74 | * in size; the arphdr structure defines the fixed-length portion. |
75 | * Protocol type values are the same as those for 10 Mb/s Ethernet. |
76 | * It is followed by the variable-sized fields ar_sha, arp_spa, |
77 | * arp_tha and arp_tpa in that order, according to the lengths |
78 | * specified. Field names used correspond to RFC 826. |
79 | */ |
80 | struct arphdr { |
81 | u_short ar_hrd; /* format of hardware address */ |
82 | #define ARPHRD_ETHER 1 /* ethernet hardware format */ |
83 | #define ARPHRD_IEEE802 6 /* token-ring hardware format */ |
84 | #define ARPHRD_FRELAY 15 /* frame relay hardware format */ |
85 | #define ARPHRD_IEEE1394 24 /* IEEE1394 hardware address */ |
86 | #define ARPHRD_IEEE1394_EUI64 27 /* IEEE1394 EUI-64 */ |
87 | u_short ar_pro; /* format of protocol address */ |
88 | u_char ar_hln; /* length of hardware address */ |
89 | u_char ar_pln; /* length of protocol address */ |
90 | u_short ar_op; /* one of: */ |
91 | #define ARPOP_REQUEST 1 /* request to resolve address */ |
92 | #define ARPOP_REPLY 2 /* response to previous request */ |
93 | #define ARPOP_REVREQUEST 3 /* request protocol address given hardware */ |
94 | #define ARPOP_REVREPLY 4 /* response giving protocol address */ |
95 | #define ARPOP_INVREQUEST 8 /* request to identify peer */ |
96 | #define ARPOP_INVREPLY 9 /* response identifying peer */ |
97 | /* |
98 | * The remaining fields are variable in size, |
99 | * according to the sizes above. |
100 | */ |
101 | #ifdef COMMENT_ONLY |
102 | u_char ar_sha[]; /* sender hardware address */ |
103 | u_char ar_spa[]; /* sender protocol address */ |
104 | u_char ar_tha[]; /* target hardware address */ |
105 | u_char ar_tpa[]; /* target protocol address */ |
106 | #endif |
107 | }; |
108 | |
109 | /* |
110 | * ARP ioctl request |
111 | */ |
112 | struct arpreq { |
113 | struct sockaddr arp_pa; /* protocol address */ |
114 | struct sockaddr arp_ha; /* hardware address */ |
115 | int arp_flags; /* flags */ |
116 | }; |
117 | /* arp_flags and at_flags field values */ |
118 | #define ATF_INUSE 0x01 /* entry in use */ |
119 | #define ATF_COM 0x02 /* completed entry (enaddr valid) */ |
120 | #define ATF_PERM 0x04 /* permanent entry */ |
121 | #define ATF_PUBL 0x08 /* publish entry (respond for other host) */ |
122 | #define ATF_USETRAILERS 0x10 /* has requested trailers */ |
123 | |
124 | struct arpstat { |
125 | /* Normal things that happen: */ |
126 | uint32_t txrequests; /* # of ARP requests sent by this host. */ |
127 | uint32_t txreplies; /* # of ARP replies sent by this host. */ |
128 | uint32_t txannounces; /* # of ARP announcements sent by this host. */ |
129 | uint32_t rxrequests; /* # of ARP requests received by this host. */ |
130 | uint32_t rxreplies; /* # of ARP replies received by this host. */ |
131 | uint32_t received; /* # of ARP packets received by this host. */ |
132 | |
133 | /* Abnormal event and error counting: */ |
134 | uint32_t txconflicts; /* # of ARP conflict probes sent */ |
135 | uint32_t invalidreqs; /* # of invalid ARP resolve requests */ |
136 | uint32_t reqnobufs; /* # of failed requests due to no memory */ |
137 | uint32_t dropped; /* # of packets dropped waiting for a reply. */ |
138 | uint32_t purged; /* # of packets purged while removing entries */ |
139 | uint32_t timeouts; /* # of times with entries removed */ |
140 | /* due to timeout. */ |
141 | uint32_t dupips; /* # of duplicate IPs detected. */ |
142 | |
143 | /* General statistics */ |
144 | uint32_t inuse; /* # of ARP entries in routing table */ |
145 | uint32_t txurequests; /* # of ARP requests sent (unicast) */ |
146 | uint32_t held; /* # of packets held waiting for a reply */ |
147 | }; |
148 | |
149 | #ifdef BSD_KERNEL_PRIVATE |
150 | extern struct arpstat arpstat; |
151 | #endif /* BSD_KERNEL_PRIVATE */ |
152 | |
153 | #endif /* !_NET_IF_ARP_H_ */ |
154 | |