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You can do this by preloading a library that intercepts these calls to |
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the c library. Set LD_PRELOAD to that library name. fakeroot (debian |
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package) does that to generate a virtual root environment. |
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If you want to do this the right way then you need to implement a |
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filesystem in the kernel..;-) There are tools that forward fs requests to |
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userland. Those might help you to get going fast. |
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|
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On Tue, 23 Jul 2002, Ardern, Steve wrote: |
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> I realise that this is very probably the wrong place to send this quick |
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> question, but it's been really bugging me and I am well and truly stuck. |
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> |
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> I want to be able to intercept any kernel level calls to a mounted |
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> filesystem - such that anytime a read/write action occurs my application is |
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> made aware of it. For example, I mount a loopback device on /mnt/loopback - |
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> and I want to be able to examine, modify, restrict all access made to this |
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> as my application sees fit. |
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