From: richard@nod.at (Richard Weinberger)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Regarding enumerating Block devices registered in kernel mode
Date: Tue, 12 Nov 2013 09:50:47 +0100 [thread overview]
Message-ID: <5281EBE7.1070007@nod.at> (raw)
In-Reply-To: <SNT147-DS17A2287E45B507AEC6CB1BA7FE0@phx.gbl>
Am 12.11.2013 09:47, schrieb vaibhav:
> Thanks for replying Richard,
>
> I need to access the blockdevice structure associated with each block device
> so that I can patch its block_device_operations to receive ioctls calls in
> my code. In my code I check for ioctls that I handle and pass it to the
> original ioctl handler if the ioctl is not understood by me.
>
> I intend to patch these block_device structures during my module
> initialization hence I need to iterate all BD's available in the system at
> that point. Also need to keep track of new BD's appearing in the system so
> that I can patch them as soon as they are available.
Please don't do that.
Such patching/hooking/etc...-games are doomed to failure.
Thanks,
//richard
prev parent reply other threads:[~2013-11-12 8:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-12 5:24 Regarding enumerating Block devices registered in kernel mode vaibhav
2013-11-12 8:08 ` Richard Weinberger
2013-11-12 8:47 ` vaibhav
2013-11-12 8:50 ` Richard Weinberger [this message]
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