1 /* $OpenBSD: ip_ether.h,v 1.13 2002/06/09 16:26:10 itojun Exp $ */
2 /*
3 * The author of this code is Angelos D. Keromytis (angelos@adk.gr)
4 *
5 * This code was written by Angelos D. Keromytis in October 1999.
6 *
7 * Copyright (C) 1999-2001 Angelos D. Keromytis.
8 *
9 * Permission to use, copy, and modify this software with or without fee
10 * is hereby granted, provided that this entire notice is included in
11 * all copies of any software which is or includes a copy or
12 * modification of this software.
13 * You may use this code under the GNU public license if you so wish. Please
14 * contribute changes back to the authors under this freer than GPL license
15 * so that we may further the use of strong encryption without limitations to
16 * all.
17 *
18 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
19 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
20 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
21 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
22 * PURPOSE.
23 */
24
25 #ifndef _NETINET_IP_ETHER_H_
26 #define _NETINET_IP_ETHER_H_
27
28 /*
29 * Ethernet-inside-IP processing.
30 */
31
32 struct etheripstat {
33 u_int32_t etherip_hdrops; /* packet shorter than header shows */
34 u_int32_t etherip_qfull; /* bridge queue full, packet dropped */
35 u_int32_t etherip_noifdrops; /* no interface/bridge information */
36 u_int32_t etherip_pdrops; /* packet dropped due to policy */
37 u_int32_t etherip_adrops; /* all other drops */
38 u_int32_t etherip_ipackets; /* total input packets */
39 u_int32_t etherip_opackets; /* total output packets */
40 u_int64_t etherip_ibytes; /* input bytes */
41 u_int64_t etherip_obytes; /* output bytes */
42 };
43
44 struct etherip_header {
45 u_int8_t eip_ver; /* version/reserved */
46 u_int8_t eip_pad; /* required padding byte */
47 };
48 #define ETHERIP_VER_VERS_MASK 0x0f
49 #define ETHERIP_VER_RSVD_MASK 0xf0
50
51 #define ETHERIP_VERSION 0x03
52
53 /*
54 * Names for Ether-IP sysctl objects
55 */
56 #define ETHERIPCTL_ALLOW 1 /* accept incoming EtherIP packets */
57 #define ETHERIPCTL_MAXID 2
58
59 #define ETHERIPCTL_NAMES { \
60 { 0, 0 }, \
61 { "allow", CTLTYPE_INT }, \
62 }
63
64 #ifdef _KERNEL
65 int etherip_sysctl(int *, u_int, void *, size_t *, void *, size_t);
66
67 extern int etherip_allow;
68 extern struct etheripstat etheripstat;
69 #endif /* _KERNEL */
70 #endif /* _NETINET_IP_ETHER_H_ */