On 15-11-23 11:12 AM, Hannes Frederic Sowa wrote:
> On Mon, Nov 23, 2015, at 20:09, John Fastabend wrote:
>> On 15-11-23 10:03 AM, Alexei Starovoitov wrote:
>>> On Mon, Nov 23, 2015 at 05:11:58PM +0100, Hannes Frederic Sowa wrote:
Actually, that is the reason why I mentioned it, so *the a
On Mon, Nov 23, 2015, at 20:09, John Fastabend wrote:
> On 15-11-23 10:03 AM, Alexei Starovoitov wrote:
> > On Mon, Nov 23, 2015 at 05:11:58PM +0100, Hannes Frederic Sowa wrote:
> >>
> >> Actually, that is the reason why I mentioned it, so *the admin* can see
> >> something is going on. Do you want
On 15-11-23 10:03 AM, Alexei Starovoitov wrote:
> On Mon, Nov 23, 2015 at 05:11:58PM +0100, Hannes Frederic Sowa wrote:
>>
>> Actually, that is the reason why I mentioned it, so *the admin* can see
>> something is going on. Do you want to protect ebpf from root? Skynet? ;)
>
> correct. To me both
On Mon, Nov 23, 2015 at 05:11:58PM +0100, Hannes Frederic Sowa wrote:
>
> Actually, that is the reason why I mentioned it, so *the admin* can see
> something is going on. Do you want to protect ebpf from root? Skynet? ;)
correct. To me both root and non-root are users in the first place and
they
On Sun, Nov 22, 2015, at 00:18, Alexei Starovoitov wrote:
> On Fri, Nov 20, 2015 at 11:30:13AM +0100, Hannes Frederic Sowa wrote:
> > Hi Alexei,
> >
> > > If user space can be see both 'count' and 'max_entries', it can be very
> > > tempting to start assuming 'full' and 'empty' state of the map wh
On Fri, Nov 20, 2015 at 11:30:13AM +0100, Hannes Frederic Sowa wrote:
> Hi Alexei,
>
> > If user space can be see both 'count' and 'max_entries', it can be very
> > tempting to start assuming 'full' and 'empty' state of the map which will
> > lead to race conditions and bad design.
> > bpf program
From: Daniel Borkmann
Date: Thu, 19 Nov 2015 11:56:22 +0100
> Add a handler for show_fdinfo() to be used by the anon-inodes
> backend for eBPF maps, and dump the map specification there. Not
> only useful for admins, but also it provides a minimal way to
> compare specs from ELF vs pinned object.
Hi Alexei,
On Fri, Nov 20, 2015, at 04:30, Alexei Starovoitov wrote:
> On Thu, Nov 19, 2015 at 09:12:30PM +0100, Hannes Frederic Sowa wrote:
> > On Thu, Nov 19, 2015, at 19:32, Alexei Starovoitov wrote:
> > > On Thu, Nov 19, 2015 at 07:19:24PM +0100, Hannes Frederic Sowa wrote:
> > > > On Thu, Nov
On Thu, Nov 19, 2015 at 09:12:30PM +0100, Hannes Frederic Sowa wrote:
> On Thu, Nov 19, 2015, at 19:32, Alexei Starovoitov wrote:
> > On Thu, Nov 19, 2015 at 07:19:24PM +0100, Hannes Frederic Sowa wrote:
> > > On Thu, Nov 19, 2015, at 11:56, Daniel Borkmann wrote:
> > > > Add a handler for show_fdi
On Thu, Nov 19, 2015, at 19:32, Alexei Starovoitov wrote:
> On Thu, Nov 19, 2015 at 07:19:24PM +0100, Hannes Frederic Sowa wrote:
> > On Thu, Nov 19, 2015, at 11:56, Daniel Borkmann wrote:
> > > Add a handler for show_fdinfo() to be used by the anon-inodes
> > > backend for eBPF maps, and dump the
On Thu, Nov 19, 2015 at 07:36:10PM +0100, Daniel Borkmann wrote:
> On 11/19/2015 07:19 PM, Hannes Frederic Sowa wrote:
> >On Thu, Nov 19, 2015, at 11:56, Daniel Borkmann wrote:
> >>Add a handler for show_fdinfo() to be used by the anon-inodes
> >>backend for eBPF maps, and dump the map specificatio
On 11/19/2015 07:19 PM, Hannes Frederic Sowa wrote:
On Thu, Nov 19, 2015, at 11:56, Daniel Borkmann wrote:
Add a handler for show_fdinfo() to be used by the anon-inodes
backend for eBPF maps, and dump the map specification there. Not
only useful for admins, but also it provides a minimal way to
On Thu, Nov 19, 2015 at 07:19:24PM +0100, Hannes Frederic Sowa wrote:
> On Thu, Nov 19, 2015, at 11:56, Daniel Borkmann wrote:
> > Add a handler for show_fdinfo() to be used by the anon-inodes
> > backend for eBPF maps, and dump the map specification there. Not
> > only useful for admins, but also
On Thu, Nov 19, 2015, at 11:56, Daniel Borkmann wrote:
> Add a handler for show_fdinfo() to be used by the anon-inodes
> backend for eBPF maps, and dump the map specification there. Not
> only useful for admins, but also it provides a minimal way to
> compare specs from ELF vs pinned object.
>
> S
On Thu, Nov 19, 2015 at 11:56:22AM +0100, Daniel Borkmann wrote:
> Add a handler for show_fdinfo() to be used by the anon-inodes
> backend for eBPF maps, and dump the map specification there. Not
> only useful for admins, but also it provides a minimal way to
> compare specs from ELF vs pinned obje
Add a handler for show_fdinfo() to be used by the anon-inodes
backend for eBPF maps, and dump the map specification there. Not
only useful for admins, but also it provides a minimal way to
compare specs from ELF vs pinned object.
Signed-off-by: Daniel Borkmann
---
kernel/bpf/syscall.c | 22 +
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