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