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A note on /dev/raw1394's security implications:
1. You cannot access local memory through raw1394, except
for ROMs and CSRs that are exposed to other nodes any way.
2. It is extremely hard to manipulate data on attached
SBP-2 devices (FireWire storage devices).
3. You can disturb operation of the FireWire bus, e.g.
creating a DoS situation for audio/video applications, for
SBP-2 devices, or eth1394 network interfaces.
4. If another PC is attached to the FireWire bus, it may be
possible to read or overwrite the entire RAM of that remote PC.
This depends on the PC's configuration. Most FireWire controllers
support this feature (yes, it's not a bug, or at least wasn't
intended to be one...) but not all OSs enable the feature.
Actually, a cheap setup to achieve #1 by #4 is to have two
FireWire controllers in the PC and connect them.
https://bugs.launchpad.net/ubuntu/+source/kino/+bug/6290/comments/21
specialix_rioctl: no kernel name symlink
specialix_sxctl: no kernel name symlink
bus/usb: 0644 -> 0664
ppdev: lp
dri: 0666 -> 0660
js: no kernel name symlink
In the interest of standardizing udev rules, please consider the
following patch that adds udev rules for the ATA over Ethernet character
and block devices. The aoe module has been a long-time member of the
kernel and needs inclusion in the standard udev rules.
[...] running the command
`make maintainer-clean' should not delete `configure' even if
`configure' can be remade using a rule in the Makefile. More
generally, `make maintainer-clean' should not delete anything that
needs to exist in order to run `configure' and then begin to build
the program. This is the only exception; `maintainer-clean' should
delete everything else that can be rebuilt.
On Tue, Dec 2, 2008 at 21:07, Matthias Schwarzott <zzam@gentoo.org> wrote:
> It seems that the rules related to capi devices are not correct:
>
> KERNEL=="capi", NAME="capi20", SYMLINK+="isdn/capi20"
> KERNEL=="capi*", NAME="capi/%n"
>
> Changing the second rule to match only on KERNEL=="capi[0-9]*" is reported to
> make it work.
> So I can only guess that the problem is the second rule overwriting the NAME
> set by the first one.
On Thu, Oct 30, 2008 at 03:55, Tejun Heo <tj@kernel.org> wrote:
The appropriate default timeout differs depending on the transport and
the type of the attached device, so the above two rules harm more than
help. The affect of the above two rules weren't visible for some
reason but with recent block layer timeout update, they actually work
and cause problems.
Opening an optical drive device node without O_NONBLOCK autocloses the
tray, we run vol_id on every media change by kernel emitted "change"
events, which can make it hard to change the media when the tray closes
immediatey again.:) We check for cdrom_id to indicate an existing track,
if no media is found, we will not open the device with vol_id.
Thanks to Christian Krause and DavidZ for debugging and testing.
None of these rules is supposed to be changed by users, so move
them out of /etc. Custom rules, and automatically generated rules
stay in /etc. All rules are still processed in lexical order,
regardless which directory they live in.
