natm.h revision 148125
1/* $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $ */ 2/* $FreeBSD: head/sys/netnatm/natm.h 148125 2005-07-18 16:55:46Z rwatson $ */ 3 4/*- 5 * 6 * Copyright (c) 1996 Charles D. Cranor and Washington University. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Charles D. Cranor and 20 * Washington University. 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36/* 37 * natm.h: native mode atm 38 */ 39 40/* 41 * supported protocols 42 */ 43#define PROTO_NATMAAL0 1 44#define PROTO_NATMAAL5 2 45 46/* 47 * sockaddr_natm 48 */ 49 50struct sockaddr_natm { 51 unsigned char snatm_len; /* length */ 52 sa_family_t snatm_family; /* AF_NATM */ 53 char snatm_if[IFNAMSIZ]; /* interface name */ 54 u_int16_t snatm_vci; /* vci */ 55 u_int8_t snatm_vpi; /* vpi */ 56}; 57 58#if defined(__FreeBSD__) && defined(_KERNEL) 59 60#define SPLSOFTNET() splnet() 61 62#elif defined(__NetBSD__) || defined(__OpenBSD__) 63 64#define SPLSOFTNET() splsoftnet() 65 66#endif 67 68#ifdef _KERNEL 69 70/* 71 * natm protocol control block 72 */ 73struct natmpcb { 74 LIST_ENTRY(natmpcb) pcblist; /* list pointers */ 75 u_int npcb_inq; /* # of our pkts in proto q */ 76 struct socket *npcb_socket; /* backpointer to socket */ 77 struct ifnet *npcb_ifp; /* pointer to hardware */ 78 struct in_addr ipaddr; /* remote IP address, if APCB_IP */ 79 u_int16_t npcb_vci; /* VCI */ 80 u_int8_t npcb_vpi; /* VPI */ 81 u_int8_t npcb_flags; /* flags */ 82}; 83 84/* flags */ 85#define NPCB_FREE 0x01 /* free (not on any list) */ 86#define NPCB_CONNECTED 0x02 /* connected */ 87#define NPCB_IP 0x04 /* used by IP */ 88#define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */ 89 90/* flag arg to npcb_free */ 91#define NPCB_REMOVE 0 /* remove from global list */ 92#define NPCB_DESTROY 1 /* destroy and be free */ 93 94LIST_HEAD(npcblist, natmpcb); 95 96/* global data structures */ 97 98extern struct mtx natm_mtx; /* global netnatm lock */ 99extern struct npcblist natm_pcbs; /* global list of pcbs */ 100#define NATM_STAT 101#ifdef NATM_STAT 102extern u_int natm_sodropcnt; 103extern u_int natm_sodropbytes; /* account of droppage */ 104extern u_int natm_sookcnt; 105extern u_int natm_sookbytes; /* account of ok */ 106#endif 107 108/* locking macros */ 109#define NATM_LOCK_INIT() mtx_init(&natm_mtx, "natm_mtx", NULL, MTX_DEF) 110#define NATM_LOCK() mtx_lock(&natm_mtx) 111#define NATM_UNLOCK() mtx_unlock(&natm_mtx) 112#define NATM_LOCK_ASSERT() mtx_assert(&natm_mtx, MA_OWNED) 113 114/* external functions */ 115 116/* natm_pcb.c */ 117struct natmpcb *npcb_alloc(int); 118void npcb_free(struct natmpcb *, int); 119struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, uint16_t, uint8_t); 120 121/* natm.c */ 122#if defined(__NetBSD__) || defined(__OpenBSD__) 123int natm_usrreq(struct socket *, int, struct mbuf *, 124 struct mbuf *, struct mbuf *, struct proc *); 125#elif defined(__FreeBSD__) 126#if __FreeBSD__ > 2 127/* 128 * FreeBSD new usrreqs style appeared since 2.2. compatibility to old style 129 * has gone since 3.0. 130 */ 131#define FREEBSD_USRREQS 132extern struct pr_usrreqs natm_usrreqs; 133#else /* !( __FreeBSD__ > 2) */ 134int natm_usrreq(struct socket *, int, struct mbuf *, 135 struct mbuf *, struct mbuf *); 136#endif /* !( __FreeBSD__ > 2) */ 137#endif 138 139#ifdef SYSCTL_HANDLER_ARGS 140int natm0_sysctl(SYSCTL_HANDLER_ARGS); 141int natm5_sysctl(SYSCTL_HANDLER_ARGS); 142#endif 143 144void natmintr(struct mbuf *); 145 146#endif 147