bsd/sys/kern_event.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
  26
  27
  28 #ifndef SYS_KERN_EVENT_H
  29 #define SYS_KERN_EVENT_H
  30
  31 #include <sys/appleapiopts.h>
  32 #include <sys/ioccom.h>
  33 #include <sys/sys_domain.h>
  34
  35 #define KEVENTS_ON  1
  36 #define KEV_SNDSPACE (4 * 1024)
  37 #define KEV_RECVSPACE (8 * 1024)
  38
  39 #define KEV_ANY_VENDOR    0
  40 #define KEV_ANY_CLASS     0
  41 #define KEV_ANY_SUBCLASS  0
  42
  43 /*
  44  * Vendor Code
  45  */
  46
  47 #define KEV_VENDOR_APPLE        1
  48
  49
  50 /*
  51  * Definition of top-level classifications
  52  */
  53
  54 #define KEV_NETWORK_CLASS 1
  55 #define KEV_IOKIT_CLASS   2
  56 #define KEV_SYSTEM_CLASS  3
  57
  58
  59 struct kern_event_msg {
  60      u_long            total_size;      /* Size of entire event msg */
  61      u_long            vendor_code;     /* For non-Apple extensibility */
  62      u_long            kev_class;       /* Layer of event source */
  63      u_long            kev_subclass;    /* Component within layer    */
  64      u_long            id;              /* Monotonically increasing value  */
  65      u_long            event_code;      /* unique code */
  66      u_long            event_data[1];   /* One or more data longwords      */
  67
  68 };
  69
  70 #define KEV_MSG_HEADER_SIZE   (6 * sizeof(u_long))
  71
  72
  73 struct kev_request {
  74      u_long     vendor_code;
  75      u_long     kev_class;
  76      u_long     kev_subclass;
  77 };
  78
  79 #define SIOCGKEVID      _IOR('e', 1, u_long)
  80 #define SIOCSKEVFILT    _IOW('e', 2, struct kev_request)
  81 #define SIOCGKEVFILT    _IOR('e', 3, struct kev_request)
  82
  83 #ifdef KERNEL
  84 #ifdef __APPLE_API_UNSTABLE
  85
  86 #define N_KEV_VECTORS     5
  87
  88 struct kev_d_vectors {
  89
  90      u_long     data_length;    /* Length of the event data */
  91      void       *data_ptr;    /* Pointer to event data */
  92 };
  93
  94
  95 struct kev_msg {
  96      u_long            vendor_code;     /* For non-Apple extensibility */
  97      u_long            kev_class;       /* Layer of event source */
  98      u_long            kev_subclass;    /* Component within layer    */
  99      u_long            event_code;      /* The event code        */
 100      struct kev_d_vectors  dv[N_KEV_VECTORS];      /* Up to n data vectors  */
 101 };
 102
 103 int  kev_post_msg(struct kev_msg *event);
 104
 105 #endif /* ___APPLE_API_UNSTABLE */
 106 #ifdef __APPLE_API_PRIVATE
 107
 108 LIST_HEAD(kern_event_head, kern_event_pcb);
 109
 110 struct  kern_event_pcb {
 111      LIST_ENTRY(kern_event_pcb) ev_link;     /* glue on list of all PCBs */
 112      struct  socket *ev_socket;     /* pointer back to socket */
 113      u_long         vendor_code_filter;
 114      u_long         class_filter;
 115      u_long         subclass_filter;
 116 };
 117
 118 #define sotoevpcb(so)   ((struct kern_event_pcb *)((so)->so_pcb))
 119
 120 #endif /* __APPLE_API_PRIVATE */
 121 #endif
 122
 123 #endif