1/*	$FreeBSD$	*/
2/*-
3 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 *
5 * Copyright (c) 2001 Daniel Hartmeier
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 *    - Redistributions of source code must retain the above copyright
13 *      notice, this list of conditions and the following disclaimer.
14 *    - Redistributions in binary form must reproduce the above
15 *      copyright notice, this list of conditions and the following
16 *      disclaimer in the documentation and/or other materials provided
17 *      with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34#ifndef _NET_PF_MTAG_H_
35#define _NET_PF_MTAG_H_
36
37#ifdef _KERNEL
38
39#define	PF_TAG_GENERATED		0x01
40#define	PF_TAG_FRAGCACHE		0x02
41#define	PF_TAG_TRANSLATE_LOCALHOST	0x04
42#define	PF_PACKET_LOOPED		0x08
43#define	PF_FASTFWD_OURS_PRESENT		0x10
44#define	PF_REASSEMBLED			0x20
45
46struct pf_mtag {
47	void		*hdr;		/* saved hdr pos in mbuf, for ECN */
48	u_int32_t	 qid;		/* queue id */
49	u_int32_t	 qid_hash;	/* queue hashid used by WFQ like algos */
50	u_int16_t	 tag;		/* tag id */
51	u_int8_t	 flags;
52	u_int8_t	 routed;
53};
54
55static __inline struct pf_mtag *
56pf_find_mtag(struct mbuf *m)
57{
58	struct m_tag	*mtag;
59
60	if ((mtag = m_tag_find(m, PACKET_TAG_PF, NULL)) == NULL)
61		return (NULL);
62
63	return ((struct pf_mtag *)(mtag + 1));
64}
65#endif /* _KERNEL */
66#endif /* _NET_PF_MTAG_H_ */
67