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/* $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $ */
/* $FreeBSD$ */
/*-
*
* 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 {
unsigned char snatm_len; /* length */
sa_family_t snatm_family; /* AF_NATM */
char snatm_if[IFNAMSIZ]; /* interface name */
u_int16_t snatm_vci; /* vci */
u_int8_t snatm_vpi; /* vpi */
};
#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 APCB_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 */
/* flag arg to npcb_free */
#define NPCB_REMOVE 0 /* remove from global list */
#define NPCB_DESTROY 1 /* destroy and be free */
LIST_HEAD(npcblist, natmpcb);
/* global data structures */
extern struct mtx natm_mtx; /* global netnatm lock */
extern struct npcblist natm_pcbs; /* global list of pcbs */
#define NATM_STAT
#ifdef NATM_STAT
extern u_int natm_sodropcnt;
extern u_int natm_sodropbytes; /* account of droppage */
extern u_int natm_sookcnt;
extern u_int natm_sookbytes; /* account of ok */
#endif
/* locking macros */
#define NATM_LOCK_INIT() mtx_init(&natm_mtx, "natm_mtx", NULL, MTX_DEF)
#define NATM_LOCK() mtx_lock(&natm_mtx)
#define NATM_UNLOCK() mtx_unlock(&natm_mtx)
#define NATM_LOCK_ASSERT() mtx_assert(&natm_mtx, MA_OWNED)
/* external functions */
/* natm_pcb.c */
struct natmpcb *npcb_alloc(int);
void npcb_free(struct natmpcb *, int);
struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, uint16_t, uint8_t);
/* natm.c */
extern struct pr_usrreqs natm_usrreqs;
#ifdef SYSCTL_HANDLER_ARGS
int natm0_sysctl(SYSCTL_HANDLER_ARGS);
int natm5_sysctl(SYSCTL_HANDLER_ARGS);
#endif
void natmintr(struct mbuf *);
#endif
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