From: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Jason Gunthorpe
<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
Cc: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Tal Alon <talal-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Liran Liss <liranl-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Majd Dibbiny <majd-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Christoph Lameter <cl-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>
Subject: Re: [RFC ABI V1 4/8] RDMA/core: Add support for custom types
Date: Thu, 14 Jul 2016 09:30:32 +0300 [thread overview]
Message-ID: <20160714063032.GL10079@leon.nu> (raw)
In-Reply-To: <20160713172116.GC19657-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
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On Wed, Jul 13, 2016 at 11:21:16AM -0600, Jason Gunthorpe wrote:
> On Wed, Jul 13, 2016 at 07:57:04PM +0300, Matan Barak wrote:
>
> > Maybe instead of having an idr per device, it's better to have an idr per
> > uverbs file.
>
> Oh, I thought you were doing that already!
>
> Yes, the idr must be per ucontext, otherwise we create a big security
> problem. Access to one files object #'s cannot be allowed from another
> file.
On top of the Matan's response, regarding no security issue here. I
didn't see added value in multiplying IDRs, which would be if
creation per-file is done.
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next prev parent reply other threads:[~2016-07-14 6:30 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-30 13:39 [RFC ABI V1 0/8] SG-based RDMA ABI Proposal Matan Barak
[not found] ` <1467293971-25688-1-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-06-30 13:39 ` [RFC ABI V1 1/8] RDMA/core: Export RDMA IOCTL declarations Matan Barak
[not found] ` <1467293971-25688-2-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-12 19:12 ` Jason Gunthorpe
[not found] ` <20160712191256.GA8206-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-12 19:43 ` Leon Romanovsky
2016-06-30 13:39 ` [RFC ABI V1 2/8] RDMA/core: Move uobject code to separate files Matan Barak
[not found] ` <1467293971-25688-3-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-12 19:15 ` Jason Gunthorpe
[not found] ` <20160712191507.GB8206-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-12 19:38 ` Leon Romanovsky
2016-07-13 14:34 ` Matan Barak
2016-06-30 13:39 ` [RFC ABI V1 3/8] RDMA/core: Refactor IDR to be per-device Matan Barak
[not found] ` <1467293971-25688-4-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-12 19:29 ` Jason Gunthorpe
[not found] ` <20160712192933.GD8206-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-12 19:48 ` Leon Romanovsky
2016-06-30 13:39 ` [RFC ABI V1 4/8] RDMA/core: Add support for custom types Matan Barak
[not found] ` <1467293971-25688-5-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-12 19:23 ` Jason Gunthorpe
[not found] ` <20160712192345.GC8206-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-13 14:44 ` Matan Barak
[not found] ` <081a02c0-0650-d0c2-494c-19a64b83cbc1-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-13 16:39 ` Jason Gunthorpe
[not found] ` <20160713163924.GA19657-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-13 16:57 ` Matan Barak
[not found] ` <0959d391-75fb-75e8-ef2e-9d8c06b1b96f-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-13 17:21 ` Jason Gunthorpe
[not found] ` <20160713172116.GC19657-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-14 5:30 ` Matan Barak
[not found] ` <5fdae959-5ab2-ee17-e36e-3642ddd3e6ce-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-14 16:41 ` Jason Gunthorpe
[not found] ` <20160714164121.GA2046-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-19 14:05 ` Matan Barak
[not found] ` <a1fcb1a7-0028-329a-d34a-ca8b52323916-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-19 20:36 ` Jason Gunthorpe
[not found] ` <20160719203609.GD16042-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-20 8:01 ` Matan Barak
[not found] ` <9727f6e6-47fd-fb0a-537f-6264e8d742a9-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-20 17:49 ` Jason Gunthorpe
2016-07-14 6:30 ` Leon Romanovsky [this message]
2016-06-30 13:39 ` [RFC ABI V1 5/8] RDMA/core: Introduce add/remove uobj from types Matan Barak
2016-06-30 13:39 ` [RFC ABI V1 6/8] RDMA/core: Add new ioctl interface Matan Barak
2016-06-30 13:39 ` [RFC ABI V1 7/8] RDMA/core: Change locking of ib_uobject Matan Barak
[not found] ` <1467293971-25688-8-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-13 17:16 ` Jason Gunthorpe
[not found] ` <20160713171657.GB19657-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-14 7:59 ` Matan Barak
[not found] ` <6ae1a553-408c-723a-93a2-3d46d952ce35-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-14 17:00 ` Jason Gunthorpe
[not found] ` <20160714170051.GB2046-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-19 15:16 ` Matan Barak
[not found] ` <b47386f4-fdb5-d24b-dbc6-9b5e18be6bf9-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-19 20:44 ` Jason Gunthorpe
[not found] ` <20160719204456.GF16042-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-07-20 7:54 ` Matan Barak (External)
[not found] ` <5c6e6a5d-9fde-a31f-1038-dce9e09662c4-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2016-07-20 17:56 ` Jason Gunthorpe
2016-06-30 13:39 ` [RFC ABI V1 8/8] RDMA/{hw, core}: Provide simple skeleton to IOCTL interface Matan Barak
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