Home | History | Annotate | Line # | Download | only in net 
      1 /*	$NetBSD: raw_cb.h,v 1.30 2018/09/07 06:13:14 maxv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1980, 1986, 1993
      5  *	The Regents of the University of California.  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  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)raw_cb.h	8.1 (Berkeley) 6/10/93
     32  */
     33 
     34 #ifndef _NET_RAW_CB_H_
     35 #define _NET_RAW_CB_H_
     36 
     37 #ifdef _KERNEL
     38 
     39 /*
     40  * Raw protocol interface control block.  Used
     41  * to tie a socket to the generic raw interface.
     42  */
     43 struct rawcb {
     44 	LIST_ENTRY(rawcb) rcb_list;	/* doubly linked list */
     45 	struct	socket *rcb_socket;	/* back pointer to socket */
     46 	struct	sockaddr *rcb_faddr;	/* destination address */
     47 	struct	sockaddr *rcb_laddr;	/* socket's address */
     48 	struct	sockproto rcb_proto;	/* protocol family, protocol */
     49 	int	(*rcb_filter)(struct mbuf *, struct sockproto *,
     50 		              struct rawcb *);
     51 	size_t	rcb_len;
     52 };
     53 
     54 #define	sotorawcb(so)		((struct rawcb *)(so)->so_pcb)
     55 
     56 /*
     57  * Nominal space allocated to a raw socket.
     58  */
     59 #define	RAWSNDQ		8192
     60 #define	RAWRCVQ		16384
     61 
     62 LIST_HEAD(rawcbhead, rawcb);
     63 
     64 int	raw_attach(struct socket *, int, struct rawcbhead *);
     65 void	*raw_ctlinput(int, const struct sockaddr *, void *);
     66 void	raw_detach(struct socket *);
     67 void	raw_disconnect(struct rawcb *);
     68 void	raw_input(struct mbuf *, struct sockproto *, struct sockaddr *,
     69 	    struct sockaddr *, struct rawcbhead *);
     70 int	raw_usrreq(struct socket *,
     71 	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct lwp *);
     72 void	raw_setsockaddr(struct rawcb *, struct sockaddr *);
     73 void	raw_setpeeraddr(struct rawcb *, struct sockaddr *);
     74 int	raw_send(struct socket *,
     75 	    struct mbuf *, struct sockaddr *, struct mbuf *, struct lwp *,
     76 	    int (*)(struct mbuf *, struct socket *));
     77 
     78 #endif /* _KERNEL */
     79 
     80 #endif /* !_NET_RAW_CB_H_ */
     81