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121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*-
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* Copyright (c) 1996 Charles D. Cranor and Washington University.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles D. Cranor and
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* Washington University.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $
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* $FreeBSD$
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*/
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/*
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* natm.h: native mode atm
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*/
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/*
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* supported protocols
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*/
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#define PROTO_NATMAAL0 1
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#define PROTO_NATMAAL5 2
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/*
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* sockaddr_natm
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*/
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struct sockaddr_natm {
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unsigned char snatm_len; /* length */
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sa_family_t snatm_family; /* AF_NATM */
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char snatm_if[IFNAMSIZ]; /* interface name */
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u_int16_t snatm_vci; /* vci */
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u_int8_t snatm_vpi; /* vpi */
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};
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#ifdef _KERNEL
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/*
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* natm protocol control block
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*/
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struct natmpcb {
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LIST_ENTRY(natmpcb) pcblist; /* list pointers */
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u_int npcb_inq; /* # of our pkts in proto q */
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struct socket *npcb_socket; /* backpointer to socket */
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struct ifnet *npcb_ifp; /* pointer to hardware */
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struct in_addr ipaddr; /* remote IP address, if APCB_IP */
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u_int16_t npcb_vci; /* VCI */
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u_int8_t npcb_vpi; /* VPI */
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u_int8_t npcb_flags; /* flags */
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};
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/* flags */
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#define NPCB_FREE 0x01 /* free (not on any list) */
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#define NPCB_CONNECTED 0x02 /* connected */
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#define NPCB_IP 0x04 /* used by IP */
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#define NPCB_DRAIN 0x08 /* destroy as soon as inq == 0 */
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/* flag arg to npcb_free */
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#define NPCB_REMOVE 0 /* remove from global list */
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#define NPCB_DESTROY 1 /* destroy and be free */
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LIST_HEAD(npcblist, natmpcb);
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/* global data structures */
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extern struct mtx natm_mtx; /* global netnatm lock */
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extern struct npcblist natm_pcbs; /* global list of pcbs */
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#define NATM_STAT
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#ifdef NATM_STAT
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extern u_int natm_sodropcnt;
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extern u_int natm_sodropbytes; /* account of droppage */
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extern u_int natm_sookcnt;
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extern u_int natm_sookbytes; /* account of ok */
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#endif
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/* locking macros */
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#define NATM_LOCK_INIT() mtx_init(&natm_mtx, "natm_mtx", NULL, MTX_DEF)
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#define NATM_LOCK() mtx_lock(&natm_mtx)
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#define NATM_UNLOCK() mtx_unlock(&natm_mtx)
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#define NATM_LOCK_ASSERT() mtx_assert(&natm_mtx, MA_OWNED)
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/* external functions */
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/* natm_pcb.c */
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struct natmpcb *npcb_alloc(int);
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void npcb_free(struct natmpcb *, int);
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struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, uint16_t, uint8_t);
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/* natm.c */
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extern struct pr_usrreqs natm_usrreqs;
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#ifdef SYSCTL_HANDLER_ARGS
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int natm0_sysctl(SYSCTL_HANDLER_ARGS);
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int natm5_sysctl(SYSCTL_HANDLER_ARGS);
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#endif
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void natmintr(struct mbuf *);
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#endif
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