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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 | /* * Copyright (c) 2004 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef _IOPOLLEDINTERFACE_H_ #define _IOPOLLEDINTERFACE_H_ enum { kIOPolledPreflightState = 1, kIOPolledBeforeSleepState = 2, kIOPolledAfterSleepState = 3, kIOPolledPostflightState = 4, kIOPolledPreflightCoreDumpState = 5, }; #if defined(__cplusplus) #include <libkern/c++/OSObject.h> #include <IOKit/IOMemoryDescriptor.h> #define kIOPolledInterfaceSupportKey "IOPolledInterface" #define kIOPolledInterfaceActiveKey "IOPolledInterfaceActive" #define kIOPolledInterfaceStackKey "IOPolledInterfaceStack" enum { kIOPolledWrite = 1, kIOPolledRead = 2 }; typedef void (*IOPolledCompletionAction)( void * target, void * parameter, IOReturn status, uint64_t actualByteCount); struct IOPolledCompletion { void * target; IOPolledCompletionAction action; void * parameter; }; class IOPolledInterface : public OSObject { OSDeclareAbstractStructors(IOPolledInterface); protected: struct ExpansionData { }; ExpansionData * reserved; public: virtual IOReturn probe(IOService * target) = 0; virtual IOReturn open( IOOptionBits state, IOMemoryDescriptor * buffer) = 0; virtual IOReturn close(IOOptionBits state) = 0; virtual IOReturn startIO(uint32_t operation, uint32_t bufferOffset, uint64_t deviceOffset, uint64_t length, IOPolledCompletion completion) = 0; virtual IOReturn checkForWork(void) = 0; OSMetaClassDeclareReservedUnused(IOPolledInterface, 0); OSMetaClassDeclareReservedUnused(IOPolledInterface, 1); OSMetaClassDeclareReservedUnused(IOPolledInterface, 2); OSMetaClassDeclareReservedUnused(IOPolledInterface, 3); OSMetaClassDeclareReservedUnused(IOPolledInterface, 4); OSMetaClassDeclareReservedUnused(IOPolledInterface, 5); OSMetaClassDeclareReservedUnused(IOPolledInterface, 6); OSMetaClassDeclareReservedUnused(IOPolledInterface, 7); OSMetaClassDeclareReservedUnused(IOPolledInterface, 8); OSMetaClassDeclareReservedUnused(IOPolledInterface, 9); OSMetaClassDeclareReservedUnused(IOPolledInterface, 10); OSMetaClassDeclareReservedUnused(IOPolledInterface, 11); OSMetaClassDeclareReservedUnused(IOPolledInterface, 12); OSMetaClassDeclareReservedUnused(IOPolledInterface, 13); OSMetaClassDeclareReservedUnused(IOPolledInterface, 14); OSMetaClassDeclareReservedUnused(IOPolledInterface, 15); }; #endif /* defined(__cplusplus) */ #ifdef XNU_KERNEL_PRIVATE #include <libkern/crypto/aes.h> #include <IOKit/IOTypes.h> #include <IOKit/IOHibernatePrivate.h> enum { kIOPolledFileSSD = 0x00000001 }; #if !defined(__cplusplus) typedef struct IORegistryEntry IORegistryEntry; typedef struct OSData OSData; typedef struct OSArray OSArray; typedef struct IOMemoryDescriptor IOMemoryDescriptor; typedef struct IOPolledFilePollers IOPolledFilePollers; #else class IOPolledFilePollers; #endif struct IOPolledFileIOVars { IOPolledFilePollers * pollers; struct kern_direct_file_io_ref_t * fileRef; OSData * fileExtents; uint64_t block0; IOByteCount blockSize; uint64_t maxiobytes; IOByteCount bufferLimit; uint8_t * buffer; IOByteCount bufferSize; IOByteCount bufferOffset; IOByteCount bufferHalf; IOByteCount extentRemaining; IOByteCount lastRead; IOByteCount readEnd; uint32_t flags; uint64_t fileSize; uint64_t position; uint64_t extentPosition; uint64_t encryptStart; uint64_t encryptEnd; uint64_t cryptBytes; AbsoluteTime cryptTime; IOPolledFileExtent * extentMap; IOPolledFileExtent * currentExtent; bool allocated; }; typedef struct IOPolledFileIOVars IOPolledFileIOVars; struct IOPolledFileCryptVars { uint8_t aes_iv[AES_BLOCK_SIZE]; aes_ctx ctx; }; typedef struct IOPolledFileCryptVars IOPolledFileCryptVars; #if defined(__cplusplus) IOReturn IOPolledFileOpen(const char * filename, uint64_t setFileSize, uint64_t fsFreeSize, void * write_file_addr, size_t write_file_len, IOPolledFileIOVars ** fileVars, OSData ** imagePath, uint8_t * volumeCryptKey, size_t keySize); IOReturn IOPolledFileClose(IOPolledFileIOVars ** pVars, off_t write_offset, void * addr, size_t write_length, off_t discard_offset, off_t discard_end); IOReturn IOPolledFilePollersSetup(IOPolledFileIOVars * vars, uint32_t openState); IOMemoryDescriptor * IOPolledFileGetIOBuffer(IOPolledFileIOVars * vars); #endif /* defined(__cplusplus) */ #if defined(__cplusplus) #define __C "C" #else #define __C #endif extern __C IOReturn IOPolledFileSeek(IOPolledFileIOVars * vars, uint64_t position); extern __C IOReturn IOPolledFileWrite(IOPolledFileIOVars * vars, const uint8_t * bytes, IOByteCount size, IOPolledFileCryptVars * cryptvars); extern __C IOReturn IOPolledFileRead(IOPolledFileIOVars * vars, uint8_t * bytes, IOByteCount size, IOPolledFileCryptVars * cryptvars); extern __C IOReturn IOPolledFilePollersOpen(IOPolledFileIOVars * vars, uint32_t state, bool abortable); extern __C IOReturn IOPolledFilePollersClose(IOPolledFileIOVars * vars, uint32_t state); extern __C IOPolledFileIOVars * gCoreFileVars; #ifdef _SYS_CONF_H_ __BEGIN_DECLS typedef void (*kern_get_file_extents_callback_t)(void * ref, uint64_t start, uint64_t size); struct kern_direct_file_io_ref_t * kern_open_file_for_direct_io(const char * name, boolean_t create_file, kern_get_file_extents_callback_t callback, void * callback_ref, off_t set_file_size, off_t fs_free_size, off_t write_file_offset, void * write_file_addr, size_t write_file_len, dev_t * partition_device_result, dev_t * image_device_result, uint64_t * partitionbase_result, uint64_t * maxiocount_result, uint32_t * oflags); void kern_close_file_for_direct_io(struct kern_direct_file_io_ref_t * ref, off_t write_offset, void * addr, size_t write_length, off_t discard_offset, off_t discard_end); int kern_write_file(struct kern_direct_file_io_ref_t * ref, off_t offset, void * addr, size_t len, int ioflag); int kern_read_file(struct kern_direct_file_io_ref_t * ref, off_t offset, void * addr, size_t len, int ioflag); struct mount * kern_file_mount(struct kern_direct_file_io_ref_t * ref); enum { kIOPolledFileMountChangeMount = 0x00000101, kIOPolledFileMountChangeUnmount = 0x00000102, kIOPolledFileMountChangeWillResize = 0x00000201, kIOPolledFileMountChangeDidResize = 0x00000202, }; extern void IOPolledFileMountChange(struct mount * mp, uint32_t op); __END_DECLS #endif /* _SYS_CONF_H_ */ #endif /* XNU_KERNEL_PRIVATE */ #endif /* _IOPOLLEDINTERFACE_H_ */ |