bsd/netat/nbp.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  *
  32  *
  33  * ORIGINS: 82
  34  *
  35  * (C) COPYRIGHT Apple Computer, Inc. 1992-1996
  36  * All Rights Reserved
  37  *
  38  */
  39 /*
  40  *      Copyright (c) 1988, 1989 Apple Computer, Inc.
  41  *
  42  *      The information contained herein is subject to change without
  43  *      notice and  should not be  construed as a commitment by Apple
  44  *      Computer, Inc. Apple Computer, Inc. assumes no responsibility
  45  *      for any errors that may appear.
  46  *
  47  *      Confidential and Proprietary to Apple Computer, Inc.
  48  */
  49 /*
  50  * Title:       nbp.h
  51  *
  52  * Facility:    Include file for NBP kernel module.
  53  *
  54  * Author:      Kumar Vora, Creation Date: May-1-1989
  55  *
  56  * History:
  57  * X01-001      Kumar Vora      May-1-1989
  58  *              Initial Creation.
  59  */
  60
  61 #ifndef _NETAT_NBP_H_
  62 #define _NETAT_NBP_H_
  63 #include <sys/appleapiopts.h>
  64
  65 #ifdef __APPLE_API_OBSOLETE
  66
  67 /* NBP packet types */
  68
  69 #define NBP_BRRQ                0x01    /* Broadcast request */
  70 #define NBP_LKUP                0x02    /* Lookup */
  71 #define NBP_LKUP_REPLY          0x03    /* Lookup reply */
  72 #define NBP_FWDRQ               0x04    /* Forward Request (router only) */
  73
  74 /* *** the following may be discontinued in the near future *** */
  75
  76 #define NBP_CONFIRM             0x09    /* Confirm, not sent on wire */
  77
  78 #ifdef NOT_USED
  79 #define NBP_REGISTER            0x07    /* Register a name */
  80 #define NBP_DELETE              0x08    /* Delete a name */
  81 #define NBP_STATUS_REPLY        0x0a    /* Status on register/delete */
  82 #define NBP_CLOSE_NOTE          0x0b    /* Close notification from DDP */
  83 #endif
  84
  85 /* *** **************************************************** *** */
  86
  87 /* Protocol defaults */
  88
  89 #define NBP_RETRY_COUNT         8       /* Maximum repeats */
  90 #define NBP_RETRY_INTERVAL      1       /* Retry timeout */
  91
  92 /* Special (partial) wildcard character */
  93 #define NBP_SPL_WILDCARD        0xC5
  94 #define NBP_ORD_WILDCARD        '='
  95
  96 /* Packet definitions */
  97
  98 #define NBP_TUPLE_MAX   15      /* Maximum number of tuples in one DDP packet */
  99 #define NBP_HDR_SIZE    2
 100
 101 typedef struct at_nbp {
 102 #if BYTE_ORDER == BIG_ENDIAN
 103         unsigned
 104                 control : 4,
 105                 tuple_count : 4;
 106 #endif
 107 #if BYTE_ORDER == LITTLE_ENDIAN
 108                 unsigned
 109                         tuple_count : 4,
 110                         control : 4;
 111 #endif
 112         u_char          at_nbp_id;
 113         at_nbptuple_t   tuple[NBP_TUPLE_MAX];
 114 } at_nbp_t;
 115
 116 #define DEFAULT_ZONE(zone) (!(zone)->len || ((zone)->len == 1 && (zone)->str[0] == '*'))
 117
 118 #ifdef KERNEL_PRIVATE
 119
 120 /* Struct for name registry */
 121 typedef struct _nve_ {
 122         TAILQ_ENTRY(_nve_) nve_link; /* tailq macro glue */
 123         gbuf_t          *tag;           /*pointer to the parent gbuf_t*/
 124                                         /* *** there's no reason why tag has to
 125                                            be an mbuf *** */
 126         at_nvestr_t     zone;
 127         u_int           zone_hash;
 128         at_nvestr_t     object;
 129         u_int           object_hash;
 130         at_nvestr_t     type;
 131         u_int           type_hash;
 132         at_inet_t       address;
 133         u_char          ddptype;
 134         u_char          enumerator;
 135         int             pid;
 136         long            unique_nbp_id;  /* long to be compatible with OT */
 137 } nve_entry_t;
 138
 139 #define NBP_WILD_OBJECT 0x01
 140 #define NBP_WILD_TYPE   0x02
 141 #define NBP_WILD_MASK   0x03
 142
 143 struct nbp_req;
 144 typedef struct nbp_req nbp_req_t;
 145 struct nbp_req  {
 146         int             (*func)(nbp_req_t *, nve_entry_t *);
 147         gbuf_t          *response;      /* the response datagram        */
 148         int             space_unused;   /* Space available in the resp  */
 149                                         /* packet.                      */
 150         gbuf_t          *request;       /* The request datagram         */
 151                                         /* Saved for return address     */
 152         nve_entry_t     nve;
 153         u_char          flags;          /* Flags to indicate whether or */
 154                                         /* not the request tuple has    */
 155                                         /* wildcards in it              */
 156 };
 157
 158 extern int      nbp_insert_entry(nve_entry_t *);
 159 extern u_int    nbp_strhash (at_nvestr_t *);
 160 extern nve_entry_t *nbp_find_nve(nve_entry_t *);
 161 extern int      nbp_fillin_nve(at_entity_t *, nve_entry_t *);
 162
 163 extern at_nvestr_t *getSPLocalZone(int);
 164 extern at_nvestr_t *getLocalZone(int);
 165
 166 #endif /* KERNEL_PRIVATE */
 167 #endif /* __APPLE_API_OBSOLETE */
 168 #endif /* _NETAT_NBP_H_ */