| 摘要 |
A method of running an operating system comprises a two-step process. Firstly, in a set-up phase, there is carried out the loading of a driver when the operating system is booted, an operating system component transmitting a call to a kernel component for a function table, the driver intercepting the call from the operating system component to the kernel component, the driver replacing a specific callout in the function table with a replacement callout to the driver, the driver supplying the amended function table to the operating system component, the operating system component invoking the replacement callout to the driver, the driver invoking the original callout to the kernel component for a second function table, the driver replacing a specific function call in the second function table with a replacement function call to the driver, and the driver supplying the amended second function table to the operating system component. In the second phase, the operating system component invokes the replacement function call to the driver, the driver invoking the original function call to the kernel component for a result, the driver changing the received result to TRUE, and the driver supplying the replacement result to the operating system component. |
