freebsd-dev/sys/netgraph/ng_iface.h
Alexander Motin 575573fb08 Check for infinite recursion possible on some broken PPTP/L2TP/... VPN setups.
Mark packets with mbuf_tag on first interface passage and drop on second.

PR:		ports/129625, ports/125303,
MFC after:	2 weeks
2009-01-20 22:26:09 +00:00

79 lines
2.9 KiB
C

/*
* ng_iface.h
*/
/*-
* Copyright (c) 1996-1999 Whistle Communications, Inc.
* All rights reserved.
*
* Subject to the following obligations and disclaimer of warranty, use and
* redistribution of this software, in source or object code forms, with or
* without modifications are expressly permitted by Whistle Communications;
* provided, however, that:
* 1. Any and all reproductions of the source or object code must include the
* copyright notice above and the following disclaimer of warranties; and
* 2. No rights are granted, in any manner or form, to use Whistle
* Communications, Inc. trademarks, including the mark "WHISTLE
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
* such appears in the above copyright notice or in the software.
*
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Archie Cobbs <archie@freebsd.org>
*
* $FreeBSD$
* $Whistle: ng_iface.h,v 1.5 1999/01/20 00:22:13 archie Exp $
*/
#ifndef _NETGRAPH_NG_IFACE_H_
#define _NETGRAPH_NG_IFACE_H_
/* Node type name and magic cookie */
#define NG_IFACE_NODE_TYPE "iface"
#define NGM_IFACE_COOKIE 1108312559
/* Interface base name */
#define NG_IFACE_IFACE_NAME "ng"
/* My hook names */
#define NG_IFACE_HOOK_INET "inet"
#define NG_IFACE_HOOK_INET6 "inet6"
#define NG_IFACE_HOOK_ATALK "atalk" /* AppleTalk phase 2 */
#define NG_IFACE_HOOK_IPX "ipx"
#define NG_IFACE_HOOK_ATM "atm"
#define NG_IFACE_HOOK_NATM "natm"
/* MTU bounds */
#define NG_IFACE_MTU_MIN 72
#define NG_IFACE_MTU_MAX 65535
#define NG_IFACE_MTU_DEFAULT 1500
/* Netgraph commands */
enum {
NGM_IFACE_GET_IFNAME = 1,
NGM_IFACE_POINT2POINT,
NGM_IFACE_BROADCAST,
NGM_IFACE_GET_IFINDEX,
};
#define MTAG_NGIF NGM_IFACE_COOKIE
#define MTAG_NGIF_CALLED 0 | MTAG_PERSISTENT
#endif /* _NETGRAPH_NG_IFACE_H_ */