1 /* $OpenBSD: if_atm.h,v 1.11 2002/03/14 01:27:09 millert 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 #ifndef _NET_IF_ATM_H_ 39 #define _NET_IF_ATM_H_ 40 41 #define RTALLOC1(A,B) rtalloc1((A),(B)) 42 43 /* 44 * pseudo header for packet transmission 45 */ 46 47 struct atm_pseudohdr { 48 u_int8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */ 49 }; 50 51 #define ATM_PH_FLAGS(X) ((X)->atm_ph[0]) 52 #define ATM_PH_VPI(X) ((X)->atm_ph[1]) 53 #define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3])) 54 #define ATM_PH_SETVCI(X,V) { \ 55 (X)->atm_ph[2] = ((V) >> 8) & 0xff; \ 56 (X)->atm_ph[3] = ((V) & 0xff); \ 57 } 58 59 #define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */ 60 #define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */ 61 62 #define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */ 63 #define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */ 64 65 #define ATMMTU 9180 /* ATM MTU size for IP */ 66 /* XXX: could be 9188 with LLC/SNAP according 67 to comer */ 68 69 /* user's ioctl hook for raw atm mode */ 70 #define SIOCRAWATM _IOWR('a', 122, int) /* set driver's raw mode */ 71 72 /* atm_pseudoioctl: turns on and off RX VCIs [for internal use only!] */ 73 struct atm_pseudoioctl { 74 struct atm_pseudohdr aph; 75 void *rxhand; 76 }; 77 #define SIOCATMENA _IOWR('a', 123, struct atm_pseudoioctl) /* enable */ 78 #define SIOCATMDIS _IOWR('a', 124, struct atm_pseudoioctl) /* disable */ 79 80 /* 81 * XXX forget all the garbage in if_llc.h and do it the easy way 82 */ 83 84 #define ATMLLC_HDR "\252\252\3\0\0\0" 85 struct atmllc { 86 u_int8_t llchdr[6]; /* aa.aa.03.00.00.00 */ 87 u_int8_t type[2]; /* "ethernet" type */ 88 }; 89 90 /* ATM_LLC macros: note type code in host byte order */ 91 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1])) 92 #define ATM_LLC_SETTYPE(X,V) { \ 93 (X)->type[0] = ((V) >> 8) & 0xff; \ 94 (X)->type[1] = ((V) & 0xff); \ 95 } 96 97 #ifdef _KERNEL 98 void atm_ifattach(struct ifnet *); 99 void atm_input(struct ifnet *, struct atm_pseudohdr *, 100 struct mbuf *, void *); 101 int atm_output(struct ifnet *, struct mbuf *, struct sockaddr *, 102 struct rtentry *); 103 #endif /* _KERNEL */ 104 #endif /* _NET_IF_ATM_H_ */ 105