sys/netproto/natm/natm.h

   1 /*      $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $   */
   2 /* $FreeBSD: src/sys/netnatm/natm.h,v 1.3 1999/12/29 04:46:14 peter Exp $ */
   3 /* $DragonFly: src/sys/netproto/natm/natm.h,v 1.6 2007/04/22 01:13:15 dillon Exp $ */
   4
   5 /*
   6  *
   7  * Copyright (c) 1996 Charles D. Cranor and Washington University.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by Charles D. Cranor and
  21  *      Washington University.
  22  * 4. The name of the author may not be used to endorse or promote products
  23  *    derived from this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  26  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  28  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  34  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 /*
  38  * natm.h: native mode atm
  39  */
  40
  41
  42 /*
  43  * supported protocols
  44  */
  45
  46 #define PROTO_NATMAAL0          1
  47 #define PROTO_NATMAAL5          2
  48
  49 /*
  50  * sockaddr_natm
  51  */
  52
  53 struct sockaddr_natm {
  54   u_int8_t      snatm_len;              /* length */
  55   u_int8_t      snatm_family;           /* AF_NATM */
  56   char          snatm_if[IFNAMSIZ];     /* interface name */
  57   u_int16_t     snatm_vci;              /* vci */
  58   u_int8_t      snatm_vpi;              /* vpi */
  59 };
  60
  61
  62 #if defined(__DragonFly__) && defined(_KERNEL)
  63
  64 #define SPLSOFTNET() splnet()
  65
  66 #elif defined(__NetBSD__) || defined(__OpenBSD__)
  67
  68 #define SPLSOFTNET() splsoftnet()
  69
  70 #endif
  71
  72 #ifdef _KERNEL
  73
  74 /*
  75  * natm protocol control block
  76  */
  77
  78 struct natmpcb {
  79   LIST_ENTRY(natmpcb) pcblist;          /* list pointers */
  80   u_int npcb_inq;                       /* # of our pkts in proto q */
  81   struct socket *npcb_socket;           /* backpointer to socket */
  82   struct ifnet *npcb_ifp;               /* pointer to hardware */
  83   struct in_addr ipaddr;                /* remote IP address, if APCB_IP */
  84   u_int16_t npcb_vci;                   /* VCI */
  85   u_int8_t npcb_vpi;                    /* VPI */
  86   u_int8_t npcb_flags;                  /* flags */
  87 };
  88
  89 /* flags */
  90 #define NPCB_FREE       0x01            /* free (not on any list) */
  91 #define NPCB_CONNECTED  0x02            /* connected */
  92 #define NPCB_IP         0x04            /* used by IP */
  93 #define NPCB_DRAIN      0x08            /* destory as soon as inq == 0 */
  94 #define NPCB_RAW        0x10            /* in 'raw' mode? */
  95
  96 /* flag arg to npcb_free */
  97 #define NPCB_REMOVE     0               /* remove from global list */
  98 #define NPCB_DESTROY    1               /* destroy and be free */
  99
 100 /*
 101  * NPCB_RAWCC is a hack which applies to connections in 'raw' mode.   it
 102  * is used to override the ssb_space() macro when you *really* don't want
 103  * to drop rcv data.   the recv socket buffer size is raised to this value.
 104  *
 105  * XXX: socket buffering needs to be looked at.
 106  */
 107
 108 #define NPCB_RAWCC (1024*1024)          /* 1MB */
 109
 110 LIST_HEAD(npcblist, natmpcb);
 111
 112 /* global data structures */
 113
 114 extern struct npcblist natm_pcbs;       /* global list of pcbs */
 115 #define NATM_STAT
 116 #ifdef NATM_STAT
 117 extern  u_int natm_sodropcnt,
 118                 natm_sodropbytes;       /* account of droppage */
 119 extern  u_int natm_sookcnt,
 120                 natm_sookbytes;         /* account of ok */
 121 #endif
 122
 123 /* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
 124 struct atm_rawioctl {
 125   struct natmpcb *npcb;
 126   int rawvalue;
 127 };
 128 #define SIOCXRAWATM     _IOWR('a', 125, struct atm_rawioctl)
 129
 130 /* external functions */
 131
 132 /* natm_pcb.c */
 133 struct  natmpcb *npcb_alloc (int);
 134 void    npcb_free (struct natmpcb *, int);
 135 struct  natmpcb *npcb_add (struct natmpcb *, struct ifnet *, int, int);
 136
 137 /* natm.c */
 138 #if defined(__NetBSD__) || defined(__OpenBSD__)
 139 int     natm_usrreq (struct socket *, int, struct mbuf *,
 140                              struct mbuf *, struct mbuf *, struct proc *);
 141 #elif defined(__DragonFly__)
 142 #if __DragonFly__ >= 1
 143 /*
 144  * FreeBSD new usrreqs style appeared since 2.2.  compatibility to old style
 145  * has gone since 3.0.
 146  */
 147 #define FREEBSD_USRREQS
 148 extern struct pr_usrreqs natm_usrreqs;
 149 #else /* !( __FreeBSD__ > 2) */
 150 int     natm_usrreq (struct socket *, int, struct mbuf *,
 151                              struct mbuf *, struct mbuf *);
 152 #endif /* !( __DragonFly >= 1) */
 153 #endif
 154 void    natm_init (void);
 155 int     natm0_sysctl (int *, u_int, void *, size_t *, void *, size_t);
 156 int     natm5_sysctl (int *, u_int, void *, size_t *, void *, size_t);
 157
 158 #endif