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    SubjectRe: Intercepting system calls
    On Thu, 22 Dec 2011, Gaurav Saxena wrote:

    > I am writing an application for which I need to intercept some
    > filesystem system calls eg. unlink. I need unlink to call my code
    > before deleting abc so that I could probably prevent unlink . I would
    > like to implement this in a kernel module instead of modifying kernel
    > code itself. I would like to intercept system calls by replacing
    > system calls but I have not been able to find any method of doing that
    > in linux > 3.0. Please suggest some method of doing that.

    Write a kernel module that instruments sys_unlink() via krpobes. See
    Documentation/kprobes.txt for details.

    --
    Jiri Kosina
    SUSE Labs



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