X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/ff6e181ae92fc6f1e89841290f461d1f2f9badd9..3e170ce000f1506b7b5d2c5c7faec85ceabb573d:/iokit/IOKit/IOPolledInterface.h diff --git a/iokit/IOKit/IOPolledInterface.h b/iokit/IOKit/IOPolledInterface.h index d004090bd..584484eab 100644 --- a/iokit/IOKit/IOPolledInterface.h +++ b/iokit/IOKit/IOPolledInterface.h @@ -1,14 +1,19 @@ /* * Copyright (c) 2004 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @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. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. + * 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 @@ -18,21 +23,31 @@ * Please see the License for the specific language governing rights and * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ -#include - -#define kIOPolledInterfaceSupportKey "IOPolledInterface" +#ifndef _IOPOLLEDINTERFACE_H_ +#define _IOPOLLEDINTERFACE_H_ enum { kIOPolledPreflightState = 1, kIOPolledBeforeSleepState = 2, kIOPolledAfterSleepState = 3, - kIOPolledPostflightState = 4 + kIOPolledPostflightState = 4, + + kIOPolledPreflightCoreDumpState = 5, }; +#if defined(__cplusplus) + +#include +#include + +#define kIOPolledInterfaceSupportKey "IOPolledInterface" +#define kIOPolledInterfaceActiveKey "IOPolledInterfaceActive" +#define kIOPolledInterfaceStackKey "IOPolledInterfaceStack" + enum { kIOPolledWrite = 1, @@ -72,8 +87,6 @@ public: virtual IOReturn checkForWork(void) = 0; - static IOReturn checkAllForWork(void); - OSMetaClassDeclareReservedUnused(IOPolledInterface, 0); OSMetaClassDeclareReservedUnused(IOPolledInterface, 1); OSMetaClassDeclareReservedUnused(IOPolledInterface, 2); @@ -92,3 +105,152 @@ public: OSMetaClassDeclareReservedUnused(IOPolledInterface, 15); }; +#endif /* defined(__cplusplus) */ + +#ifdef XNU_KERNEL_PRIVATE + +#include +#include +#include + +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_ */