Файловый менеджер - Редактировать - /usr/src/linux-hwe-5.15-headers-5.15.0-134/arch/um/include/asm/uaccess.h
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/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Copyright (C) 2015 Richard Weinberger (richard@nod.at) */ #ifndef __UM_UACCESS_H #define __UM_UACCESS_H #include <asm/elf.h> #define __under_task_size(addr, size) \ (((unsigned long) (addr) < TASK_SIZE) && \ (((unsigned long) (addr) + (size)) < TASK_SIZE)) #define __access_ok_vsyscall(addr, size) \ (((unsigned long) (addr) >= FIXADDR_USER_START) && \ ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \ ((unsigned long) (addr) + (size) >= (unsigned long)(addr))) #define __addr_range_nowrap(addr, size) \ ((unsigned long) (addr) <= ((unsigned long) (addr) + (size))) extern unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n); extern unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n); extern unsigned long __clear_user(void __user *mem, unsigned long len); static inline int __access_ok(unsigned long addr, unsigned long size); /* Teach asm-generic/uaccess.h that we have C functions for these. */ #define __access_ok __access_ok #define __clear_user __clear_user #define INLINE_COPY_FROM_USER #define INLINE_COPY_TO_USER #include <asm-generic/uaccess.h> static inline int __access_ok(unsigned long addr, unsigned long size) { return __addr_range_nowrap(addr, size) && (__under_task_size(addr, size) || __access_ok_vsyscall(addr, size) || uaccess_kernel()); } #endif
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