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/* $OpenBSD: natm.h,v 1.7 2008/05/27 19:57:45 thib Exp $ */
/*
*
* Copyright (c) 1996 Charles D. Cranor and Washington University.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles D. Cranor and
* Washington University.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* natm.h: native mode atm
*/
/*
* supported protocols
*/
#define PROTO_NATMAAL0 1
#define PROTO_NATMAAL5 2
/*
* sockaddr_natm
*/
struct sockaddr_natm {
u_int8_t snatm_len; /* length */
u_int8_t snatm_family; /* AF_NATM */
char snatm_if[IFNAMSIZ]; /* interface name */
u_int16_t snatm_vci; /* vci */
u_int8_t snatm_vpi; /* vpi */
};
#if defined(__FreeBSD__) && defined(KERNEL)
#ifndef _KERNEL
#define _KERNEL
#endif
#define SPLSOFTNET() splnet()
#elif defined(__NetBSD__) || defined(__OpenBSD__)
#define SPLSOFTNET() splsoftnet()
#endif
#ifdef _KERNEL
/*
* natm protocol control block
*/
struct natmpcb {
LIST_ENTRY(natmpcb) pcblist; /* list pointers */
u_int npcb_inq; /* # of our pkts in proto q */
struct socket *npcb_socket; /* backpointer to socket */
struct ifnet *npcb_ifp; /* pointer to hardware */
struct in_addr ipaddr; /* remote IP address, if NPCB_IP */
u_int16_t npcb_vci; /* VCI */
u_int8_t npcb_vpi; /* VPI */
u_int8_t npcb_flags; /* flags */
};
/* flags */
#define NPCB_FREE 0x01 /* free (not on any list) */
#define NPCB_CONNECTED 0x02 /* connected */
#define NPCB_IP 0x04 /* used by IP */
#define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */
#define NPCB_RAW 0x10 /* in 'raw' mode? */
/* flag arg to npcb_free */
#define NPCB_REMOVE 0 /* remove from global list */
#define NPCB_DESTROY 1 /* destroy and be free */
/*
* NPCB_RAWCC is a hack which applies to connections in 'raw' mode. it
* is used to override the sbspace() macro when you *really* don't want
* to drop rcv data. the recv socket buffer size is raised to this value.
*
* XXX: socket buffering needs to be looked at.
*/
#define NPCB_RAWCC (1024*1024) /* 1MB */
LIST_HEAD(npcblist, natmpcb);
/* global data structures */
struct npcblist natm_pcbs; /* global list of pcbs */
extern struct ifqueue natmintrq; /* natm packet input queue */
#define NATM_STAT
#ifdef NATM_STAT
extern u_int natm_sodropcnt,
natm_sodropbytes; /* account of droppage */
extern u_int natm_sookcnt,
natm_sookbytes; /* account of ok */
#endif
/* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
struct atm_rawioctl {
struct natmpcb *npcb;
int rawvalue;
};
#define SIOCXRAWATM _IOWR('a', 125, struct atm_rawioctl)
/* external functions */
/* natm_pcb.c */
struct natmpcb *npcb_alloc(int);
void npcb_free(struct natmpcb *, int);
struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, int, int);
/* natm.c */
int natm_usrreq(struct socket *, int, struct mbuf *,
struct mbuf *, struct mbuf *, struct proc *);
int natm0_sysctl(int *, u_int, void *, size_t *, void *, size_t);
int natm5_sysctl(int *, u_int, void *, size_t *, void *, size_t);
void natmintr(void);
#endif
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