bsd/net/if_blue.h

   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 /* Copyright (c) 1997, 1998 Apple Computer, Inc. All Rights Reserved */
  23 /*
  24  *      @(#)if_blue.h   1.1 (MacOSX) 6/10/43
  25  * Justin Walker
  26  * 970520 - First version
  27  * 980130 - Second version - performance improvements
  28  */
  29
  30 #ifndef _IF_BLUE_H
  31 #define _IF_BLUE_H
  32
  33 #define BLUE_DEBUG 0
  34
  35 /*
  36  * Y-adapter filter mechanism.
  37  * Specifies the Atalk or IP network address of this node.
  38  * If BF_ALLOC is set and BF_VALID is not, the corresponding
  39  * protocol type should be captured.
  40  */
  41 struct BlueFilter
  42 {
  43 #define IFNAMSIZ        16
  44         char    ifr_name[IFNAMSIZ];             /* if name, e.g. "en0" */
  45         short BF_flags;
  46         unsigned long  BF_address;      /* IP address or Atalk Network # */
  47         unsigned char  BF_node;         /* Atalk node # */
  48 #ifdef notyet
  49         struct ifnet *BF_if;            /* Destination of "passed" pkts */
  50 #endif
  51 };
  52
  53 #define BF_ALLOC        0x01    /* Entry in use */
  54 #define BF_DEALLOC      0x02    /* Clear matching entry */
  55 #define BF_VALID        0x04    /* Address is valid */
  56 #define BF_ATALK        0x08    /* Appletalk network address */
  57 #define BF_IP           0x10    /* IP network address */
  58
  59 struct Ystats
  60 {       char YS_name[IFNAMSIZ];         /* if name, e.g. "en0" */
  61         struct BlueFilter YS_filter[2];
  62         pid_t YS_blue_pid;
  63         int YS_pkts_up;
  64         int YS_pkts_out;
  65         int YS_pkts_looped_r2b;
  66         int YS_pkts_looped_b2r;
  67         int YS_no_bufs1;
  68         int YS_no_bufs2;
  69         int YS_full_sockbuf;
  70 };
  71
  72 struct ifnet_blue
  73 {       struct ifnet ifb_ifn;
  74         struct socket *ifb_so;
  75         pid_t blue_pid;
  76         int sig_to_send;
  77         int sig_sent;           /* Set when new pkt arrives; cleared when mt */
  78         struct BlueFilter filter[2];    /* Only need to check IP, A/talk */
  79         /* Stats */
  80         int pkts_up;
  81         int pkts_out;
  82         int pkts_looped_r2b;
  83         int pkts_looped_b2r;
  84         int no_bufs1;           /* splitter_input got null mbuf */
  85         int no_bufs2;           /* ndrv_output couldn't dup mbuf */
  86         int full_sockbuf;
  87 };
  88
  89 /* Preallocate slots in blue_if to simplify filtering */
  90 #define BFS_ATALK       0x0     /* The Atalk filter */
  91 #define BFS_IP          0x1     /* The IP filter */
  92
  93 #define SIOCSSPLITTER   _IOW('i', 123, struct ifreq)    /* set 'splitter' */
  94 #define SIOCGSPLITTER   _IOR('i', 122, struct ifreq)    /* get 'splitter' */
  95 #define SIOCGSPLTSTAT   _IOWR('i', 121, struct Ystats)
  96 #define SIOCSSPLTFILT   _IOW('i', 120, struct BlueFilter)
  97 #define SIOCZSPLTSTAT   _IO('i', 119)           /* Clear stats */
  98
  99 /*
 100  * Config structure for the Y adapter - NYI
 101  */
 102 struct if_splitter
 103 {       char ifs_on;            /* 1=>on */
 104         char ifs_qmax;          /* !0 => maxqlen */
 105         short ifs_wait;         /* Time to wait for signal */
 106         short ifs_sig;          /* Signal to send */
 107         short ifs_pad;          /* Extra space */
 108 };
 109
 110 #ifdef KERNEL
 111 extern struct ifqueue blueq;            /* Place to put incoming BB packets */
 112
 113 #define BFCount 10
 114 extern struct BlueFilter RhapFilter[]; /* Filters for MacOSX side */
 115 extern int BFIx;
 116 #endif
 117 #endif /* _IF_BLUE_H */