| 1 | /* $NetBSD: if_atm.h,v 1.21 2016/04/28 00:16:56 ozaki-r Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1996 Charles D. Cranor and Washington University. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 18 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 19 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 21 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 22 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 23 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 25 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | /* |
| 29 | * net/if_atm.h |
| 30 | */ |
| 31 | |
| 32 | #ifndef _NET_IF_ATM_H_ |
| 33 | #define _NET_IF_ATM_H_ |
| 34 | |
| 35 | #include <sys/ioccom.h> |
| 36 | |
| 37 | #if (defined(__FreeBSD__) || defined(__bsdi__)) && defined(KERNEL) |
| 38 | #ifndef _KERNEL |
| 39 | #define _KERNEL |
| 40 | #endif |
| 41 | #endif /* freebsd doesn't define _KERNEL */ |
| 42 | |
| 43 | #ifndef NO_ATM_PVCEXT |
| 44 | /* |
| 45 | * ATM_PVCEXT enables PVC extension: VP/VC shaping |
| 46 | * and PVC shadow interfaces. |
| 47 | */ |
| 48 | #define ATM_PVCEXT /* enable pvc extension */ |
| 49 | #endif |
| 50 | |
| 51 | #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) |
| 52 | #define RTALLOC1(A,B) rtalloc1((A),(B)) |
| 53 | #elif defined(__FreeBSD__) |
| 54 | #define RTALLOC1(A,B) rtalloc1((A),(B),0UL) |
| 55 | #endif |
| 56 | |
| 57 | /* |
| 58 | * pseudo header for packet transmission |
| 59 | */ |
| 60 | |
| 61 | struct atm_pseudohdr { |
| 62 | uint8_t atm_ph[4]; /* flags+VPI+VCI1(msb)+VCI2(lsb) */ |
| 63 | }; |
| 64 | |
| 65 | #define ATM_PH_FLAGS(X) ((X)->atm_ph[0]) |
| 66 | #define ATM_PH_VPI(X) ((X)->atm_ph[1]) |
| 67 | #define ATM_PH_VCI(X) ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3])) |
| 68 | #define ATM_PH_SETVCI(X,V) { \ |
| 69 | (X)->atm_ph[2] = ((V) >> 8) & 0xff; \ |
| 70 | (X)->atm_ph[3] = ((V) & 0xff); \ |
| 71 | } |
| 72 | |
| 73 | #define ATM_PH_AAL5 0x01 /* use AAL5? (0 == aal0) */ |
| 74 | #define ATM_PH_LLCSNAP 0x02 /* use the LLC SNAP encoding (iff aal5) */ |
| 75 | |
| 76 | #ifdef ATM_PVCEXT |
| 77 | #define ATM_PH_INERNAL 0x20 /* reserve for kernel internal use */ |
| 78 | #endif |
| 79 | #define ATM_PH_DRIVER7 0x40 /* reserve for driver's use */ |
| 80 | #define ATM_PH_DRIVER8 0x80 /* reserve for driver's use */ |
| 81 | |
| 82 | #define ATMMTU 9180 /* ATM MTU size for IP */ |
| 83 | /* XXX: could be 9188 with LLC/SNAP according |
| 84 | to comer */ |
| 85 | |
| 86 | /* user's ioctl hook for raw atm mode */ |
| 87 | #define SIOCRAWATM _IOWR('a', 122, int) /* set driver's raw mode */ |
| 88 | |
| 89 | /* atm_pseudoioctl: turns on and off RX VCIs [for internal use only!] */ |
| 90 | struct atm_pseudoioctl { |
| 91 | struct atm_pseudohdr aph; |
| 92 | void *rxhand; |
| 93 | }; |
| 94 | #define SIOCATMENA _IOWR('a', 123, struct atm_pseudoioctl) /* enable */ |
| 95 | #define SIOCATMDIS _IOWR('a', 124, struct atm_pseudoioctl) /* disable */ |
| 96 | |
| 97 | #ifdef ATM_PVCEXT |
| 98 | |
| 99 | /* structure to control PVC transmitter */ |
| 100 | struct pvctxreq { |
| 101 | /* first entry must be compatible with struct ifreq */ |
| 102 | char pvc_ifname[IFNAMSIZ]; /* if name, e.g. "en0" */ |
| 103 | struct atm_pseudohdr pvc_aph; /* (flags) + vpi:vci */ |
| 104 | struct atm_pseudohdr pvc_joint; /* for vp shaping: another vc |
| 105 | to share the shaper */ |
| 106 | int pvc_pcr; /* peak cell rate (shaper value) */ |
| 107 | }; |
| 108 | |
| 109 | /* use ifioctl for now */ |
| 110 | #define SIOCSPVCTX _IOWR('i', 95, struct pvctxreq) |
| 111 | #define SIOCGPVCTX _IOWR('i', 96, struct pvctxreq) |
| 112 | #define SIOCSPVCSIF _IOWR('i', 97, struct ifreq) |
| 113 | #define SIOCGPVCSIF _IOWR('i', 98, struct ifreq) |
| 114 | |
| 115 | #endif /* ATM_PVCEXT */ |
| 116 | |
| 117 | /* |
| 118 | * XXX forget all the garbage in if_llc.h and do it the easy way |
| 119 | */ |
| 120 | |
| 121 | #define ATMLLC_HDR "\252\252\3\0\0\0" |
| 122 | struct atmllc { |
| 123 | uint8_t llchdr[6]; /* aa.aa.03.00.00.00 */ |
| 124 | uint8_t type[2]; /* "ethernet" type */ |
| 125 | } __packed; |
| 126 | |
| 127 | /* ATM_LLC macros: note type code in host byte order */ |
| 128 | #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1])) |
| 129 | #define ATM_LLC_SETTYPE(X,V) { \ |
| 130 | (X)->type[0] = ((V) >> 8) & 0xff; \ |
| 131 | (X)->type[1] = ((V) & 0xff); \ |
| 132 | } |
| 133 | |
| 134 | #ifdef _KERNEL |
| 135 | void atm_ifattach(struct ifnet *); |
| 136 | void atm_input(struct ifnet *, struct atm_pseudohdr *, |
| 137 | struct mbuf *, void *); |
| 138 | int atm_output(struct ifnet *, struct mbuf *, const struct sockaddr *, |
| 139 | const struct rtentry *); |
| 140 | #endif |
| 141 | #ifdef ATM_PVCEXT |
| 142 | #ifdef _KERNEL |
| 143 | #include <sys/queue.h> |
| 144 | /* |
| 145 | * ATM PVC subinterface: a trick to assign a subinterface |
| 146 | * to a PVC. |
| 147 | * with a pvc subinterface, each PVC looks like an individual |
| 148 | * Point-to-Point interface. |
| 149 | * as opposed to the NBMA model, a pvc subinterface is inherently |
| 150 | * multicast capable (no LANE/MARS required). |
| 151 | */ |
| 152 | struct pvcsif { |
| 153 | /* |
| 154 | * The ifnet struct _must_ be at the head of this structure. |
| 155 | */ |
| 156 | struct ifnet sif_if; /* ifnet structure per pvc */ |
| 157 | struct atm_pseudohdr sif_aph; /* flags + vpi:vci */ |
| 158 | int sif_vci; /* vci no */ |
| 159 | LIST_ENTRY(pvcsif) sif_links; |
| 160 | }; |
| 161 | struct ifnet *pvcsif_alloc(void); |
| 162 | #endif |
| 163 | #endif /* ATM_PVCEXT */ |
| 164 | #endif /* !_NET_IF_ATM_H_ */ |
| 165 | |