From: "Theodore Y. Ts'o" <tytso@mit.edu>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
Hannes Reinecke <hare@suse.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
James Bottomley <James.Bottomley@hansenpartnership.com>
Subject: Re: [PATCH 0/3] SG_IO command filtering via sysfs
Date: Sat, 10 Nov 2018 14:05:21 -0500 [thread overview]
Message-ID: <20181110190521.GA2627@thunk.org> (raw)
In-Reply-To: <1541867733-7836-1-git-send-email-pbonzini@redhat.com>
I wonder if a better way of adding SG_IO command filtering is via
eBPF? We are currently carrying a inside Google a patch which allows
a specific of SCSI commands to non-root processes --- if the process
belonged to a particular Unix group id.
It's pretty specific to our use case, in terms of the specific SCSI
commands we want to allow through. I can imagine people wanting
different filters based on the type of the SCSI device, or a HDD's
WWID, not just a group id. For example, this might be useful for
people wanting to do crazy things with containers --- maybe you'd
want to allow container root to send a SANITIZE ERASE command to one
of its exclusively assigned disks, but not to other HDD's.
So having something that's more general than a flat file in sysfs
might be preferable to resurrecting an interface which we would then
after to support forever, even if we come up with a more general
interface.
- Ted
next prev parent reply other threads:[~2018-11-10 19:05 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-10 16:35 [PATCH 0/3] SG_IO command filtering via sysfs Paolo Bonzini
2018-11-10 16:35 ` [PATCH 1/3] block: add back queue-private command filter Paolo Bonzini
2018-11-10 16:35 ` [PATCH 2/3] scsi: create an all-one filter for scanners Paolo Bonzini
2018-11-10 16:35 ` [PATCH 3/3] block: add back command filter modification via sysfs Paolo Bonzini
2018-11-16 5:46 ` Bart Van Assche
2018-11-16 7:00 ` Paolo Bonzini
2018-11-16 14:42 ` Bart Van Assche
2018-11-10 19:05 ` Theodore Y. Ts'o [this message]
2018-11-11 13:26 ` [PATCH 0/3] SG_IO command filtering " Paolo Bonzini
2018-11-11 14:14 ` Theodore Y. Ts'o
2018-11-16 0:26 ` Paolo Bonzini
2018-11-16 0:37 ` Bart Van Assche
2018-11-16 7:01 ` Paolo Bonzini
2018-11-16 17:35 ` Theodore Y. Ts'o
2018-11-11 13:14 ` Christoph Hellwig
2018-11-11 13:42 ` Theodore Y. Ts'o
2018-11-12 8:20 ` Christoph Hellwig
2018-11-12 10:17 ` Paolo Bonzini
2018-11-16 9:32 ` Christoph Hellwig
2018-11-16 9:45 ` Paolo Bonzini
2018-11-16 9:48 ` Christoph Hellwig
2018-11-16 17:43 ` Theodore Y. Ts'o
2018-11-16 18:17 ` Bart Van Assche
2018-11-16 21:08 ` Paolo Bonzini
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