bsd/net/pf_mtag.h

   1 /*
   2  * Copyright (c) 2008 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 #ifndef _NET_PF_MTAG_H_
  30 #define _NET_PF_MTAG_H_
  31
  32 #if PF
  33 #if KERNEL_PRIVATE
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #define PF_TAG_GENERATED                0x01
  40 #define PF_TAG_FRAGCACHE                0x02
  41 #define PF_TAG_TRANSLATE_LOCALHOST      0x04
  42
  43 struct pf_mtag {
  44         void            *hdr;           /* saved hdr pos in mbuf, for ECN */
  45         unsigned int    rtableid;       /* alternate routing table id */
  46         u_int32_t       qid;            /* queue id */
  47         u_int16_t       tag;            /* tag id */
  48         u_int8_t        flags;
  49         u_int8_t        routed;
  50 };
  51
  52 __private_extern__ struct pf_mtag *pf_find_mtag(struct mbuf *);
  53 __private_extern__ struct pf_mtag *pf_get_mtag(struct mbuf *);
  54
  55 #ifdef  __cplusplus
  56 }
  57 #endif
  58 #endif /* KERNEL_PRIVATE */
  59 #endif /* PF */
  60 #endif /* _NET_PF_MTAG_H_ */