iokit/IOKit/IORPC.h

   1 /*
   2  * Copyright (c) 2018 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_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 License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29
  30 #ifndef _IORPC_H
  31 #define _IORPC_H
  32
  33 #include <stdint.h>
  34
  35 #ifndef PLATFORM_DriverKit
  36
  37 #include <mach/message.h>
  38
  39 #else /* !PLATFORM_DriverKit */
  40
  41 #ifndef _MACH_MESSAGE_H_
  42 #define _MACH_MESSAGE_H_
  43
  44 #define MACH_MSG_TYPE_MOVE_RECEIVE      16      /* Must hold receive right */
  45 #define MACH_MSG_TYPE_MOVE_SEND         17      /* Must hold send right(s) */
  46 #define MACH_MSG_TYPE_MOVE_SEND_ONCE    18      /* Must hold sendonce right */
  47 #define MACH_MSG_TYPE_COPY_SEND         19      /* Must hold send right(s) */
  48 #define MACH_MSG_TYPE_MAKE_SEND         20      /* Must hold receive right */
  49 #define MACH_MSG_TYPE_MAKE_SEND_ONCE    21      /* Must hold receive right */
  50 #define MACH_MSG_TYPE_COPY_RECEIVE      22      /* NOT VALID */
  51 #define MACH_MSG_TYPE_DISPOSE_RECEIVE   24      /* must hold receive right */
  52 #define MACH_MSG_TYPE_DISPOSE_SEND      25      /* must hold send right(s) */
  53 #define MACH_MSG_TYPE_DISPOSE_SEND_ONCE 26      /* must hold sendonce right */
  54
  55 #define MACH_MSG_TYPE_PORT_NONE         0
  56
  57 #define MACH_MSG_PORT_DESCRIPTOR                0
  58 #define MACH_MSG_OOL_DESCRIPTOR                 1
  59
  60 typedef unsigned int mach_msg_copy_options_t;
  61
  62 #define MACH_MSG_PHYSICAL_COPY          0
  63 #define MACH_MSG_VIRTUAL_COPY           1
  64 #define MACH_MSG_ALLOCATE               2
  65
  66 typedef uint32_t natural_t;
  67 typedef int32_t integer_t;
  68
  69 typedef unsigned int mach_msg_type_name_t;
  70 typedef unsigned int mach_msg_descriptor_type_t;
  71
  72 #if KERNEL
  73 typedef void * mach_port_t;
  74 #define MACH_PORT_NULL  NULL
  75 #else /* !KERNEL */
  76 typedef natural_t mach_port_t;
  77 #define MACH_PORT_NULL  0
  78 #endif /* !KERNEL */
  79
  80 typedef natural_t mach_port_name_t;
  81
  82 typedef unsigned int mach_msg_bits_t;
  83 typedef natural_t mach_msg_size_t;
  84 typedef integer_t mach_msg_id_t;
  85
  86 #pragma pack(push, 4)
  87
  88 typedef struct{
  89         mach_msg_bits_t       msgh_bits;
  90         mach_msg_size_t       msgh_size;
  91         mach_port_t           msgh_remote_port;
  92         mach_port_t           msgh_local_port;
  93         mach_port_name_t      msgh_voucher_port;
  94         mach_msg_id_t         msgh_id;
  95 } mach_msg_header_t;
  96
  97 typedef struct{
  98         mach_msg_size_t msgh_descriptor_count;
  99 } mach_msg_body_t;
 100
 101 typedef struct{
 102         mach_port_t                   name;
 103 #if !(defined(KERNEL) && defined(__LP64__))
 104 // Pad to 8 bytes everywhere except the K64 kernel where mach_port_t is 8 bytes
 105         mach_msg_size_t               pad1;
 106 #endif
 107         unsigned int                  pad2 : 16;
 108         mach_msg_type_name_t          disposition : 8;
 109         mach_msg_descriptor_type_t    type : 8;
 110 #if defined(KERNEL)
 111         uint32_t          pad_end;
 112 #endif
 113 } mach_msg_port_descriptor_t;
 114
 115 typedef struct{
 116         void *                        address;
 117 #if !defined(__LP64__)
 118         mach_msg_size_t               size;
 119 #endif
 120         int                           deallocate: 8;
 121         mach_msg_copy_options_t       copy: 8;
 122         unsigned int                  pad1: 8;
 123         mach_msg_descriptor_type_t    type: 8;
 124 #if defined(__LP64__)
 125         mach_msg_size_t               size;
 126 #endif
 127 #if defined(KERNEL) && !defined(__LP64__)
 128         uint32_t          pad_end;
 129 #endif
 130 } mach_msg_ool_descriptor_t;
 131
 132 typedef struct{
 133         unsigned int                  val[80 / sizeof(int)];
 134 } mach_msg_max_trailer_t;
 135
 136 #pragma pack(pop)
 137
 138 #endif  /* _MACH_MESSAGE_H_ */
 139
 140 #endif /* PLATFORM_DriverKit */
 141
 142 #if KERNEL
 143 class IOUserServer;
 144 #endif /* KERNEL */
 145
 146 typedef uint64_t OSObjectRef;
 147
 148 enum {
 149         kIORPCVersion190615       = (mach_msg_id_t) 0x4da2b68c,
 150         kIORPCVersion190615Reply  = (mach_msg_id_t) 0x4da2b68d,
 151
 152 #if DRIVERKIT_PRIVATE
 153         kIORPCVersion190501       = (mach_msg_id_t) 0xfe316a7a,
 154         kIORPCVersion190501Reply  = (mach_msg_id_t) 0xfe316a7b,
 155
 156         kIORPCVersionCurrent      = kIORPCVersion190615,
 157         kIORPCVersionCurrentReply = kIORPCVersion190615Reply
 158 #endif /* DRIVERKIT_PRIVATE */
 159 };
 160
 161 enum{
 162         kIORPCMessageRemote     = 0x00000001,
 163         kIORPCMessageLocalHost  = 0x00000002,
 164         kIORPCMessageKernel     = 0x00000004,
 165         kIORPCMessageOneway     = 0x00000008,
 166         kIORPCMessageObjectRefs = 0x00000010,
 167         kIORPCMessageOnqueue    = 0x00000020,
 168         kIORPCMessageError      = 0x00000040,
 169         kIORPCMessageSimpleReply = 0x00000080,
 170 };
 171
 172 enum{
 173         kIORPCMessageIDKernel   = (1ULL << 63),
 174 };
 175
 176 struct IORPCMessageMach {
 177         mach_msg_header_t          msgh;
 178         mach_msg_body_t            msgh_body;
 179         mach_msg_port_descriptor_t objects[0];
 180 };
 181 typedef struct IORPCMessageMach IORPCMessageMach;
 182
 183 struct IORPCMessage {
 184         uint64_t         msgid;
 185         uint64_t         flags;
 186         uint64_t         objectRefs;
 187         OSObjectRef      objects[0];
 188 };
 189 typedef struct IORPCMessage IORPCMessage;
 190
 191 extern "C" IORPCMessage *
 192 IORPCMessageFromMach(IORPCMessageMach * msg, bool reply);
 193
 194 struct IORPCMessageErrorReturnContent {
 195         IORPCMessage  hdr;
 196         kern_return_t result;
 197         uint32_t      pad;
 198 };
 199
 200 #pragma pack(4)
 201 struct IORPCMessageErrorReturn {
 202         IORPCMessageMach mach;
 203         IORPCMessageErrorReturnContent content;
 204 };
 205 #pragma pack()
 206
 207
 208 class OSMetaClassBase;
 209 struct IORPC;
 210 typedef kern_return_t (*OSDispatchMethod)(OSMetaClassBase * self, const IORPC rpc);
 211
 212 struct IORPC {
 213         IORPCMessageMach * message;
 214         IORPCMessageMach * reply;
 215         uint32_t           sendSize;
 216         uint32_t           replySize;
 217 };
 218 typedef struct IORPC IORPC;
 219
 220 enum {
 221         kOSClassCanRemote   = 0x00000001,
 222 };
 223
 224 struct OSClassDescription {
 225         uint32_t    descriptionSize;
 226
 227         char        name[96];
 228         char        superName[96];
 229
 230         uint32_t    methodOptionsSize;
 231         uint32_t    methodOptionsOffset;
 232         uint32_t    metaMethodOptionsSize;
 233         uint32_t    metaMethodOptionsOffset;
 234         uint32_t    queueNamesSize;
 235         uint32_t    queueNamesOffset;
 236         uint32_t    methodNamesSize;
 237         uint32_t    methodNamesOffset;
 238         uint32_t    metaMethodNamesSize;
 239         uint32_t    metaMethodNamesOffset;
 240
 241         uint64_t    flags;
 242
 243         uint64_t    resv1[8];
 244
 245         uint64_t    methodOptions[0];
 246         uint64_t    metaMethodOptions[0];
 247
 248         char        dispatchNames[0];
 249         char        methodNames[0];
 250         char        metaMethodNames[0];
 251 };
 252
 253 #endif /* _IORPC_H */