if_atm.h revision 37939
1/* $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $ */ 2 3/* 4 * 5 * Copyright (c) 1996 Charles D. Cranor and Washington University. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles D. Cranor and 19 * Washington University. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35/* 36 * net/if_atm.h 37 */ 38 39#if (defined(__FreeBSD__) || defined(__bsdi__)) && defined(KERNEL) 40#ifndef _KERNEL 41#define _KERNEL 42#endif 43#endif /* freebsd doesn't define _KERNEL */ 44 45#ifndef NO_ATM_PVCEXT 46/* 47 * ATM_PVCEXT enables PVC extention: VP/VC shaping 48 * and PVC shadow interfaces. 49 */ 50#define ATM_PVCEXT /* enable pvc extention */ 51#endif 52 53#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) 54#define RTALLOC1(A,B) rtalloc1((A),(B)) 55#elif defined(__FreeBSD__) 56#define RTALLOC1(A,B) rtalloc1((A),(B),0UL) 57#endif 58 59/* 60 * pseudo header for packet transmission 61 */ 62struct atm_pseudohdr { 63 u_int8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */ 64}; 65 66#define ATM_PH_FLAGS(X) ((X)->atm_ph[0]) 67#define ATM_PH_VPI(X) ((X)->atm_ph[1]) 68#define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3])) 69#define ATM_PH_SETVCI(X,V) { \ 70 (X)->atm_ph[2] = ((V) >> 8) & 0xff; \ 71 (X)->atm_ph[3] = ((V) & 0xff); \ 72} 73 74#define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */ 75#define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */ 76 77#ifdef ATM_PVCEXT 78#define ATM_PH_INERNAL 0x20 /* reserve for kernel internal use */ 79#endif 80#define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */ 81#define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */ 82 83#define ATMMTU 9180 /* ATM MTU size for IP */ 84 /* XXX: could be 9188 with LLC/SNAP according 85 to comer */ 86 87/* user's ioctl hook for raw atm mode */ 88#define SIOCRAWATM _IOWR('a', 122, int) /* set driver's raw mode */ 89 90/* atm_pseudoioctl: turns on and off RX VCIs [for internal use only!] */ 91struct atm_pseudoioctl { 92 struct atm_pseudohdr aph; 93 void *rxhand; 94}; 95#define SIOCATMENA _IOWR('a', 123, struct atm_pseudoioctl) /* enable */ 96#define SIOCATMDIS _IOWR('a', 124, struct atm_pseudoioctl) /* disable */ 97 98#ifdef ATM_PVCEXT 99 100/* structure to control PVC transmitter */ 101struct pvctxreq { 102 /* first entry must be compatible with struct ifreq */ 103 char pvc_ifname[IFNAMSIZ]; /* if name, e.g. "en0" */ 104 struct atm_pseudohdr pvc_aph; /* (flags) + vpi:vci */ 105 struct atm_pseudohdr pvc_joint; /* for vp shaping: another vc 106 to share the shaper */ 107 int pvc_pcr; /* peak cell rate (shaper value) */ 108}; 109 110/* use ifioctl for now */ 111#define SIOCSPVCTX _IOWR('i', 95, struct pvctxreq) 112#define SIOCGPVCTX _IOWR('i', 96, struct pvctxreq) 113#define SIOCSPVCSIF _IOWR('i', 97, struct ifreq) 114#define SIOCGPVCSIF _IOWR('i', 98, struct ifreq) 115 116#ifdef _KERNEL 117#define ATM_PH_PVCSIF ATM_PH_INERNAL /* pvc shadow interface */ 118#endif 119#endif /* ATM_PVCEXT */ 120 121/* 122 * XXX forget all the garbage in if_llc.h and do it the easy way 123 */ 124 125#define ATMLLC_HDR "\252\252\3\0\0\0" 126struct atmllc { 127 u_int8_t llchdr[6]; /* aa.aa.03.00.00.00 */ 128 u_int8_t type[2]; /* "ethernet" type */ 129}; 130 131/* ATM_LLC macros: note type code in host byte order */ 132#define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1])) 133#define ATM_LLC_SETTYPE(X,V) { \ 134 (X)->type[1] = ((V) >> 8) & 0xff; \ 135 (X)->type[0] = ((V) & 0xff); \ 136} 137 138#ifdef _KERNEL 139void atm_ifattach __P((struct ifnet *)); 140void atm_input __P((struct ifnet *, struct atm_pseudohdr *, 141 struct mbuf *, void *)); 142int atm_output __P((struct ifnet *, struct mbuf *, struct sockaddr *, 143 struct rtentry *)); 144#endif 145#ifdef ATM_PVCEXT 146char *shadow2if __P((char *)); 147#ifdef _KERNEL 148struct ifnet *pvc_attach __P((struct ifnet *)); 149int pvc_setaph __P((struct ifnet *, struct atm_pseudohdr *)); 150#endif 151#endif 152