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Christian Brauner says: ==================== netns: uevent filtering This is the new approach to uevent filtering as discussed (see the threads in [1], [2], and [3]). It only contains *non-functional changes*. This series deals with with fixing up uevent filtering logic: - uevent filtering logic is simplified - locking time on uevent_sock_list is minimized - tagged and untagged kobjects are handled in separate codepaths - permissions for userspace are fixed for network device uevents in network namespaces owned by non-initial user namespaces Udev is now able to see those events correctly which it wasn't before. For example, moving a physical device into a network namespace not owned by the initial user namespaces before gave: root@xen1:~# udevadm --debug monitor -k calling: monitor monitor will print the received events for: KERNEL - the kernel uevent sender uid=65534, message ignored sender uid=65534, message ignored sender uid=65534, message ignored sender uid=65534, message ignored sender uid=65534, message ignored and now after the discussion and solution in [3] correctly gives: root@xen1:~# udevadm --debug monitor -k calling: monitor monitor will print the received events for: KERNEL - the kernel uevent KERNEL[625.301042] add /devices/pci0000:00/0000:00:02.0/0000:01:00.1/net/enp1s0f1 (net) KERNEL[625.301109] move /devices/pci0000:00/0000:00:02.0/0000:01:00.1/net/enp1s0f1 (net) KERNEL[625.301138] move /devices/pci0000:00/0000:00:02.0/0000:01:00.1/net/eth1 (net) KERNEL[655.333272] remove /devices/pci0000:00/0000:00:02.0/0000:01:00.1/net/eth1 (net) Thanks! Christian [1]: https://lkml.org/lkml/2018/4/4/739 [2]: https://lkml.org/lkml/2018/4/26/767 [3]: https://lkml.org/lkml/2018/4/26/738 ==================== Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.