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https://github.com/zephyrproject-rtos/zephyr
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c200367b68
Driver APIs might not implement all operations, making it possible for a user thread to get the kernel to execute a function at 0x00000000. Perform runtime checks in all the driver handlers, checking if they're capable of performing the requested operation. Fixes #6907. Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <syscall_handler.h>
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#include <flash.h>
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_SYSCALL_HANDLER(flash_read, dev, offset, data, len)
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{
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_SYSCALL_DRIVER_FLASH(dev, read);
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_SYSCALL_MEMORY_WRITE(data, len);
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return _impl_flash_read((struct device *)dev, offset, (void *)data,
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len);
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}
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_SYSCALL_HANDLER(flash_write, dev, offset, data, len)
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{
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_SYSCALL_DRIVER_FLASH(dev, write);
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_SYSCALL_MEMORY_READ(data, len);
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return _impl_flash_write((struct device *)dev, offset,
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(const void *)data, len);
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}
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_SYSCALL_HANDLER(flash_write_protection_set, dev, enable)
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{
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_SYSCALL_DRIVER_FLASH(dev, write_protection);
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return _impl_flash_write_protection_set((struct device *)dev, enable);
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}
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_SYSCALL_HANDLER1_SIMPLE(flash_get_write_block_size, K_OBJ_DRIVER_FLASH,
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struct device *);
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#ifdef CONFIG_FLASH_PAGE_LAYOUT
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_SYSCALL_HANDLER(flash_get_page_info_by_offs, dev, offs, info)
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{
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_SYSCALL_DRIVER_FLASH(dev, page_layout);
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_SYSCALL_MEMORY_WRITE(info, sizeof(struct flash_pages_info));
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return _impl_flash_get_page_info_by_offs((struct device *)dev, offs,
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(struct flash_pages_info *)info);
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}
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_SYSCALL_HANDLER(flash_get_page_info_by_idx, dev, idx, info)
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{
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_SYSCALL_DRIVER_FLASH(dev, page_layout);
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_SYSCALL_MEMORY_WRITE(info, sizeof(struct flash_pages_info));
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return _impl_flash_get_page_info_by_idx((struct device *)dev, idx,
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(struct flash_pages_info *)info);
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}
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_SYSCALL_HANDLER(flash_get_page_count, dev)
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{
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_SYSCALL_DRIVER_FLASH(dev, page_layout);
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return _impl_flash_get_page_count((struct device *)dev);
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}
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#endif
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