1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2001 Daniel Hartmeier
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * - Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
32
33 #ifndef _NET_PF_MTAG_H_
34 #define _NET_PF_MTAG_H_
35
36 #ifdef _KERNEL
37
38 #define PF_TAG_GENERATED 0x01
39 #define PF_TAG_FRAGCACHE 0x02
40 #define PF_TAG_TRANSLATE_LOCALHOST 0x04
41 #define PF_PACKET_LOOPED 0x08
42 #define PF_FASTFWD_OURS_PRESENT 0x10
43 #define PF_REASSEMBLED 0x20
44 #define PF_DUPLICATED 0x40
45 #define PF_TAG_SYNCOOKIE_RECREATED 0x80
46
47 struct pf_mtag {
48 void *hdr; /* saved hdr pos in mbuf, for ECN */
49 u_int16_t qid; /* queue id */
50 u_int32_t qid_hash; /* queue hashid used by WFQ like algos */
51 u_int16_t tag; /* tag id */
52 u_int8_t flags;
53 u_int8_t routed;
54 };
55
56 static __inline struct pf_mtag *
pf_find_mtag(struct mbuf * m)57 pf_find_mtag(struct mbuf *m)
58 {
59 struct m_tag *mtag;
60
61 if ((mtag = m_tag_find(m, PACKET_TAG_PF, NULL)) == NULL)
62 return (NULL);
63
64 return ((struct pf_mtag *)(mtag + 1));
65 }
66 #endif /* _KERNEL */
67 #endif /* _NET_PF_MTAG_H_ */
68