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[Dazuko-devel] LSM of Dazuko on kernel 2.6.32

From: errik
Subject: [Dazuko-devel] LSM of Dazuko on kernel 2.6.32
Date: Fri, 18 Feb 2011 19:03:55 +0800

Hi John,
    These days I am trying to find a way to do execve hook on 2.6.32 kernel.
    I  have tried dazukofs, it works with risk because we can't stop it after we mount a directory as dazukofs. The only way is to reboot the OS. If I mount watching directories to dazukofs, it has some potential impact to my server.
    Also I tried redirfs, it only supports open and close hook not support execve hook.
    At the end I tried to port Dazuko (LSM way) to kernel 2.6.32. The execve hook works fine with dazuko-LSM. But after I modify all the security APIs for 2.6.32, I found the kernel API  register_security is not exported event there is no kernel API unregister_security.
    So I hope I can get some suggestions from you:
    1. Is it possibile that I continue to use LSM on kernel 2.6.32? How can I do this? It seems kernel developers want to remove LSM from future kernel.
     2. Can Dazuko catch execve events with RedirFS on kernel 2.6.32?
     Looking forward to your suggestions.
Thanks a lot,

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