1 /* $OpenBSD: natm.h,v 1.6 2002/03/14 01:27:12 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 * natm.h: native mode atm 37 */ 38 39 40 /* 41 * supported protocols 42 */ 43 44 #define PROTO_NATMAAL0 1 45 #define PROTO_NATMAAL5 2 46 47 /* 48 * sockaddr_natm 49 */ 50 51 struct sockaddr_natm { 52 u_int8_t snatm_len; /* length */ 53 u_int8_t snatm_family; /* AF_NATM */ 54 char snatm_if[IFNAMSIZ]; /* interface name */ 55 u_int16_t snatm_vci; /* vci */ 56 u_int8_t snatm_vpi; /* vpi */ 57 }; 58 59 60 #if defined(__FreeBSD__) && defined(KERNEL) 61 62 #ifndef _KERNEL 63 #define _KERNEL 64 #endif 65 66 #define SPLSOFTNET() splnet() 67 68 #elif defined(__NetBSD__) || defined(__OpenBSD__) 69 70 #define SPLSOFTNET() splsoftnet() 71 72 #endif 73 74 #ifdef _KERNEL 75 76 /* 77 * natm protocol control block 78 */ 79 80 struct natmpcb { 81 LIST_ENTRY(natmpcb) pcblist; /* list pointers */ 82 u_int npcb_inq; /* # of our pkts in proto q */ 83 struct socket *npcb_socket; /* backpointer to socket */ 84 struct ifnet *npcb_ifp; /* pointer to hardware */ 85 struct in_addr ipaddr; /* remote IP address, if NPCB_IP */ 86 u_int16_t npcb_vci; /* VCI */ 87 u_int8_t npcb_vpi; /* VPI */ 88 u_int8_t npcb_flags; /* flags */ 89 }; 90 91 /* flags */ 92 #define NPCB_FREE 0x01 /* free (not on any list) */ 93 #define NPCB_CONNECTED 0x02 /* connected */ 94 #define NPCB_IP 0x04 /* used by IP */ 95 #define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */ 96 #define NPCB_RAW 0x10 /* in 'raw' mode? */ 97 98 /* flag arg to npcb_free */ 99 #define NPCB_REMOVE 0 /* remove from global list */ 100 #define NPCB_DESTROY 1 /* destroy and be free */ 101 102 /* 103 * NPCB_RAWCC is a hack which applies to connections in 'raw' mode. it 104 * is used to override the sbspace() macro when you *really* don't want 105 * to drop rcv data. the recv socket buffer size is raised to this value. 106 * 107 * XXX: socket buffering needs to be looked at. 108 */ 109 110 #define NPCB_RAWCC (1024*1024) /* 1MB */ 111 112 LIST_HEAD(npcblist, natmpcb); 113 114 /* global data structures */ 115 116 struct npcblist natm_pcbs; /* global list of pcbs */ 117 extern struct ifqueue natmintrq; /* natm packet input queue */ 118 #define NATM_STAT 119 #ifdef NATM_STAT 120 extern u_int natm_sodropcnt, 121 natm_sodropbytes; /* account of droppage */ 122 extern u_int natm_sookcnt, 123 natm_sookbytes; /* account of ok */ 124 #endif 125 126 /* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */ 127 struct atm_rawioctl { 128 struct natmpcb *npcb; 129 int rawvalue; 130 }; 131 #define SIOCXRAWATM _IOWR('a', 125, struct atm_rawioctl) 132 133 /* external functions */ 134 135 /* natm_pcb.c */ 136 struct natmpcb *npcb_alloc(int); 137 void npcb_free(struct natmpcb *, int); 138 struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, int, int); 139 140 /* natm.c */ 141 #if defined(__NetBSD__) 142 int natm_usrreq(struct socket *, int, struct mbuf *, 143 struct mbuf *, struct mbuf *, struct proc *); 144 #elif defined(__OpenBSD__) || defined(FreeBSD) 145 int natm_usrreq(struct socket *, int, struct mbuf *, 146 struct mbuf *, struct mbuf *); 147 #endif 148 int natm0_sysctl(int *, u_int, void *, size_t *, void *, size_t); 149 int natm5_sysctl(int *, u_int, void *, size_t *, void *, size_t); 150 void natmintr(void); 151 152 #endif 153