/*      $NetBSD: raw_cb.h,v 1.30 2018/09/07 06:13:14 maxv Exp $ */

/*
 * Copyright (c) 1980, 1986, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 *      @(#)raw_cb.h    8.1 (Berkeley) 6/10/93
 */

#ifndef _NET_RAW_CB_H_
#define _NET_RAW_CB_H_

#ifdef _KERNEL

/*
 * Raw protocol interface control block.  Used
 * to tie a socket to the generic raw interface.
 */
struct rawcb {
        LIST_ENTRY(rawcb) rcb_list;     /* doubly linked list */
        struct  socket *rcb_socket;     /* back pointer to socket */
        struct  sockaddr *rcb_faddr;    /* destination address */
        struct  sockaddr *rcb_laddr;    /* socket's address */
        struct  sockproto rcb_proto;    /* protocol family, protocol */
        int     (*rcb_filter)(struct mbuf *, struct sockproto *,
                              struct rawcb *);
        size_t  rcb_len;
};

#define sotorawcb(so)           ((struct rawcb *)(so)->so_pcb)

/*
 * Nominal space allocated to a raw socket.
 */
#define RAWSNDQ         8192
#define RAWRCVQ         16384

LIST_HEAD(rawcbhead, rawcb);

int     raw_attach(struct socket *, int, struct rawcbhead *);
void    *raw_ctlinput(int, const struct sockaddr *, void *);
void    raw_detach(struct socket *);
void    raw_disconnect(struct rawcb *);
void    raw_input(struct mbuf *, struct sockproto *, struct sockaddr *,
            struct sockaddr *, struct rawcbhead *);
int     raw_usrreq(struct socket *,
            int, struct mbuf *, struct mbuf *, struct mbuf *, struct lwp *);
void    raw_setsockaddr(struct rawcb *, struct sockaddr *);
void    raw_setpeeraddr(struct rawcb *, struct sockaddr *);
int     raw_send(struct socket *,
            struct mbuf *, struct sockaddr *, struct mbuf *, struct lwp *,
            int (*)(struct mbuf *, struct socket *));

#endif /* _KERNEL */

#endif /* !_NET_RAW_CB_H_ */