Annotation of XNU/bsd/netat/nbp.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*
                     23:  *
                     24:  *
                     25:  * ORIGINS: 82
                     26:  *
                     27:  * (C) COPYRIGHT Apple Computer, Inc. 1992-1996
                     28:  * All Rights Reserved
                     29:  *
                     30:  */                                                                   
                     31: /*
                     32:  *     Copyright (c) 1988, 1989 Apple Computer, Inc. 
                     33:  *
                     34:  *     The information contained herein is subject to change without
                     35:  *     notice and  should not be  construed as a commitment by Apple
                     36:  *     Computer, Inc. Apple Computer, Inc. assumes no responsibility
                     37:  *     for any errors that may appear.
                     38:  *
                     39:  *     Confidential and Proprietary to Apple Computer, Inc.
                     40:  */
                     41: /*
                     42:  * Title:      nbp.h
                     43:  *
                     44:  * Facility:   Include file for NBP kernel module.
                     45:  *
                     46:  * Author:     Kumar Vora, Creation Date: May-1-1989
                     47:  *
                     48:  * History:
                     49:  * X01-001     Kumar Vora      May-1-1989
                     50:  *             Initial Creation.
                     51:  */
                     52: 
                     53: #ifndef _NETAT_NBP_H_
                     54: #define _NETAT_NBP_H_
                     55: 
                     56: /* NBP packet types */
                     57: 
                     58: #define NBP_BRRQ               0x01    /* Broadcast request */
                     59: #define NBP_LKUP               0x02    /* Lookup */
                     60: #define NBP_LKUP_REPLY         0x03    /* Lookup reply */
                     61: #define NBP_FWDRQ              0x04    /* Forward Request (router only) */
                     62: 
                     63: /* *** the following may be discontinued in the near future *** */
                     64: 
                     65: #define NBP_CONFIRM            0x09    /* Confirm, not sent on wire */
                     66: 
                     67: #ifdef NOT_USED
                     68: #define NBP_REGISTER           0x07    /* Register a name */
                     69: #define NBP_DELETE             0x08    /* Delete a name */
                     70: #define NBP_STATUS_REPLY       0x0a    /* Status on register/delete */
                     71: #define        NBP_CLOSE_NOTE          0x0b    /* Close notification from DDP */
                     72: #endif
                     73: 
                     74: /* *** **************************************************** *** */
                     75: 
                     76: /* Protocol defaults */
                     77: 
                     78: #define NBP_RETRY_COUNT                8       /* Maximum repeats */
                     79: #define NBP_RETRY_INTERVAL     1       /* Retry timeout */
                     80: 
                     81: /* Special (partial) wildcard character */
                     82: #define        NBP_SPL_WILDCARD        0xC5
                     83: #define        NBP_ORD_WILDCARD        '='
                     84: 
                     85: /* Packet definitions */
                     86: 
                     87: #define NBP_TUPLE_MAX  15      /* Maximum number of tuples in one DDP packet */
                     88: #define        NBP_HDR_SIZE    2
                     89: 
                     90: typedef struct at_nbp {
                     91:         unsigned       control : 4,
                     92:                        tuple_count : 4;
                     93:        u_char          at_nbp_id;
                     94:        at_nbptuple_t   tuple[NBP_TUPLE_MAX];
                     95: } at_nbp_t;
                     96: 
                     97: #define DEFAULT_ZONE(zone) (!(zone)->len || ((zone)->len == 1 && (zone)->str[0] == '*'))
                     98: 
                     99: #ifdef KERNEL
                    100: 
                    101: /* Struct for name registry */
                    102: typedef struct _nve_ {
                    103:        TAILQ_ENTRY(_nve_) nve_link; /* tailq macro glue */
                    104:        gbuf_t          *tag;           /*pointer to the parent gbuf_t*/
                    105:                                        /* *** there's no reason why tag has to
                    106:                                           be an mbuf *** */
                    107:        at_nvestr_t     zone;
                    108:        u_int           zone_hash;
                    109:        at_nvestr_t     object;
                    110:        u_int           object_hash;
                    111:        at_nvestr_t     type;
                    112:        u_int           type_hash;
                    113:        at_inet_t       address;
                    114:        u_char          ddptype;
                    115:        u_char          enumerator;
                    116:        int             pid;
                    117:        long            unique_nbp_id;  /* long to be compatible with OT */
                    118: } nve_entry_t;
                    119: 
                    120: #define        NBP_WILD_OBJECT 0x01
                    121: #define        NBP_WILD_TYPE   0x02
                    122: #define        NBP_WILD_MASK   0x03
                    123: 
                    124: typedef        struct  nbp_req {
                    125:        int             (*func)();
                    126:        gbuf_t          *response;      /* the response datagram        */
                    127:        int             space_unused;   /* Space available in the resp  */
                    128:                                        /* packet.                      */
                    129:        gbuf_t          *request;       /* The request datagram         */
                    130:                                        /* Saved for return address     */
                    131:        nve_entry_t     nve;
                    132:        u_char          flags;          /* Flags to indicate whether or */
                    133:                                        /* not the request tuple has    */
                    134:                                        /* wildcards in it              */
                    135: } nbp_req_t;
                    136: 
                    137: extern int     nbp_insert_entry(nve_entry_t *);
                    138: extern u_int   nbp_strhash (at_nvestr_t *);
                    139: extern nve_entry_t *nbp_find_nve(nve_entry_t *);
                    140: extern int     nbp_fillin_nve();
                    141: 
                    142: extern at_nvestr_t *getSPLocalZone(int);
                    143: extern at_nvestr_t *getLocalZone(int);
                    144: 
                    145: #endif /* KERNEL */
                    146: #endif /* _NETAT_NBP_H_ */

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