4f53e3cc7a
several new features are added: - support vc/vp shaping - support pvc shadow interface code cleanup: - remove WMAYBE related code. ENI WMAYBE DMA doen't work. - remove updating if_lastchange for every packet. - BPF related code is moved to midway.c as it should be. (bpfwrite should work if atm_pseudohdr and LLC/SNAP are prepended.) - BPF link type is changed to DLT_ATM_RFC1483. BPF now understands only LLC/SNAP!! (because bpf can't handle variable link header length.) It is recommended to use LLC/SNAP instead of NULL encapsulation for various reasons. (BPF, IPv6, interoperability, etc.) the code has been used for months in ALTQ and KAME IPv6. OKed by phk long time ago.
152 lines
5.1 KiB
C
152 lines
5.1 KiB
C
/* $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $ */
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/*
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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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* 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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/*
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* net/if_atm.h
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*/
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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 extention: VP/VC shaping
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* and PVC shadow interfaces.
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*/
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#define ATM_PVCEXT /* enable pvc extention */
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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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u_int8_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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#ifdef _KERNEL
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#define ATM_PH_PVCSIF ATM_PH_INERNAL /* pvc shadow interface */
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#endif
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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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u_int8_t llchdr[6]; /* aa.aa.03.00.00.00 */
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u_int8_t type[2]; /* "ethernet" type */
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};
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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[1] = ((V) >> 8) & 0xff; \
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(X)->type[0] = ((V) & 0xff); \
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}
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#ifdef _KERNEL
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void atm_ifattach __P((struct ifnet *));
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void atm_input __P((struct ifnet *, struct atm_pseudohdr *,
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struct mbuf *, void *));
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int atm_output __P((struct ifnet *, struct mbuf *, struct sockaddr *,
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struct rtentry *));
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#endif
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#ifdef ATM_PVCEXT
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char *shadow2if __P((char *));
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#ifdef _KERNEL
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struct ifnet *pvc_attach __P((struct ifnet *));
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int pvc_setaph __P((struct ifnet *, struct atm_pseudohdr *));
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#endif
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#endif
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