/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2001 Daniel Hartmeier
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *    - Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *    - Redistributions in binary form must reproduce the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer in the documentation and/or other materials provided
 *      with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef _NET_PF_MTAG_H_
#define _NET_PF_MTAG_H_

#ifdef _KERNEL

/* pf_mtag -> flags */
#define PF_MTAG_FLAG_ROUTE_TO                   0x01
#define PF_MTAG_FLAG_DUMMYNET                   0x02
#define PF_MTAG_FLAG_TRANSLATE_LOCALHOST        0x04
#define PF_MTAG_FLAG_PACKET_LOOPED              0x08
#define PF_MTAG_FLAG_FASTFWD_OURS_PRESENT       0x10
#define PF_MTAG_FLAG_DUMMYNETED                 0x20
#define PF_MTAG_FLAG_DUPLICATED                 0x40
#define PF_MTAG_FLAG_SYNCOOKIE_RECREATED        0x80

struct pf_mtag {
        void            *hdr;           /* saved hdr pos in mbuf, for ECN */
        u_int16_t        qid;           /* queue id */
        u_int32_t        qid_hash;      /* queue hashid used by WFQ like algos */
        u_int16_t        tag;           /* tag id */
        u_int8_t         flags;
        u_int8_t         routed;
        u_int16_t        dnpipe;
        u_int32_t        dnflags;
        u_int16_t        if_index;      /* For ROUTE_TO */
        u_int16_t        if_idxgen;     /* For ROUTE_TO */
        struct sockaddr_storage dst;    /* For ROUTE_TO */
};

static __inline struct pf_mtag *
pf_find_mtag(struct mbuf *m)
{
        struct m_tag    *mtag;

        if ((mtag = m_tag_find(m, PACKET_TAG_PF, NULL)) == NULL)
                return (NULL);

        return ((struct pf_mtag *)(mtag + 1));
}
#endif /* _KERNEL */
#endif /* _NET_PF_MTAG_H_ */