165 lines
5.2 KiB
C
165 lines
5.2 KiB
C
/* $NetBSD: if_atm.h,v 1.21 2016/04/28 00:16:56 ozaki-r Exp $ */
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/*
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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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*
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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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/*
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* net/if_atm.h
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*/
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#ifndef _NET_IF_ATM_H_
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#define _NET_IF_ATM_H_
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#include <sys/ioccom.h>
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#if (defined(__FreeBSD__) || defined(__bsdi__)) && defined(KERNEL)
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#ifndef _KERNEL
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#define _KERNEL
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#endif
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#endif /* freebsd doesn't define _KERNEL */
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#ifndef NO_ATM_PVCEXT
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/*
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* ATM_PVCEXT enables PVC extension: VP/VC shaping
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* and PVC shadow interfaces.
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*/
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#define ATM_PVCEXT /* enable pvc extension */
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#endif
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#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
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#define RTALLOC1(A,B) rtalloc1((A),(B))
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#elif defined(__FreeBSD__)
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#define RTALLOC1(A,B) rtalloc1((A),(B),0UL)
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#endif
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/*
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* pseudo header for packet transmission
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*/
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struct atm_pseudohdr {
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uint8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */
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};
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#define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
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#define ATM_PH_VPI(X) ((X)->atm_ph[1])
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#define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
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#define ATM_PH_SETVCI(X,V) { \
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(X)->atm_ph[2] = ((V) >> 8) & 0xff; \
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(X)->atm_ph[3] = ((V) & 0xff); \
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}
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#define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */
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#define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */
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#ifdef ATM_PVCEXT
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#define ATM_PH_INERNAL 0x20 /* reserve for kernel internal use */
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#endif
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#define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */
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#define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */
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#define ATMMTU 9180 /* ATM MTU size for IP */
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/* XXX: could be 9188 with LLC/SNAP according
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to comer */
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/* user's ioctl hook for raw atm mode */
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#define SIOCRAWATM _IOWR('a', 122, int) /* set driver's raw mode */
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/* atm_pseudoioctl: turns on and off RX VCIs [for internal use only!] */
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struct atm_pseudoioctl {
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struct atm_pseudohdr aph;
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void *rxhand;
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};
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#define SIOCATMENA _IOWR('a', 123, struct atm_pseudoioctl) /* enable */
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#define SIOCATMDIS _IOWR('a', 124, struct atm_pseudoioctl) /* disable */
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#ifdef ATM_PVCEXT
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/* structure to control PVC transmitter */
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struct pvctxreq {
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/* first entry must be compatible with struct ifreq */
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char pvc_ifname[IFNAMSIZ]; /* if name, e.g. "en0" */
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struct atm_pseudohdr pvc_aph; /* (flags) + vpi:vci */
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struct atm_pseudohdr pvc_joint; /* for vp shaping: another vc
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to share the shaper */
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int pvc_pcr; /* peak cell rate (shaper value) */
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};
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/* use ifioctl for now */
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#define SIOCSPVCTX _IOWR('i', 95, struct pvctxreq)
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#define SIOCGPVCTX _IOWR('i', 96, struct pvctxreq)
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#define SIOCSPVCSIF _IOWR('i', 97, struct ifreq)
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#define SIOCGPVCSIF _IOWR('i', 98, struct ifreq)
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#endif /* ATM_PVCEXT */
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/*
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* XXX forget all the garbage in if_llc.h and do it the easy way
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*/
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#define ATMLLC_HDR "\252\252\3\0\0\0"
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struct atmllc {
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uint8_t llchdr[6]; /* aa.aa.03.00.00.00 */
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uint8_t type[2]; /* "ethernet" type */
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} __packed;
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/* ATM_LLC macros: note type code in host byte order */
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#define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
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#define ATM_LLC_SETTYPE(X,V) { \
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(X)->type[0] = ((V) >> 8) & 0xff; \
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(X)->type[1] = ((V) & 0xff); \
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}
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#ifdef _KERNEL
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void atm_ifattach(struct ifnet *);
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void atm_input(struct ifnet *, struct atm_pseudohdr *,
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struct mbuf *, void *);
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int atm_output(struct ifnet *, struct mbuf *, const struct sockaddr *,
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const struct rtentry *);
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#endif
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#ifdef ATM_PVCEXT
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#ifdef _KERNEL
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#include <sys/queue.h>
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/*
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* ATM PVC subinterface: a trick to assign a subinterface
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* to a PVC.
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* with a pvc subinterface, each PVC looks like an individual
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* Point-to-Point interface.
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* as opposed to the NBMA model, a pvc subinterface is inherently
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* multicast capable (no LANE/MARS required).
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*/
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struct pvcsif {
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/*
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* The ifnet struct _must_ be at the head of this structure.
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*/
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struct ifnet sif_if; /* ifnet structure per pvc */
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struct atm_pseudohdr sif_aph; /* flags + vpi:vci */
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int sif_vci; /* vci no */
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LIST_ENTRY(pvcsif) sif_links;
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};
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struct ifnet *pvcsif_alloc(void);
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#endif
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#endif /* ATM_PVCEXT */
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#endif /* !_NET_IF_ATM_H_ */
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