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/*
* Copyright (c) 1999-2013 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Support for socket filter kernel extensions
*/
#ifndef NET_KEXT_NET_H
#define NET_KEXT_NET_H
#include <sys/appleapiopts.h>
#include <sys/queue.h>
#include <sys/cdefs.h>
#define NFF_BEFORE 0x01
#define NFF_AFTER 0x02
#define NKE_OK 0
#define NKE_REMOVE (-1)
/*
* Interface structure for inserting an installed socket NKE into an
* existing socket.
* 'handle' is the NKE to be inserted, 'where' is an insertion point,
* and flags dictate the position of the to-be-inserted NKE relative to
* the 'where' NKE. If the latter is NULL, the flags indicate "first"
* or "last"
*/
#pragma pack(4)
struct so_nke {
unsigned int nke_handle;
unsigned int nke_where;
int nke_flags; /* NFF_BEFORE, NFF_AFTER: net/kext_net.h */
u_int32_t reserved[4]; /* for future use */
};
#pragma pack()
#endif /* NET_KEXT_NET_H */
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