When at least one of the name, MAC address, udev properties, and so on
for an interface is updated, try to find a matching .network file, and
reconfigure if a new .network file is assigned.
Fixes#24975.
No functional changes, just refactoring and preparation for later
commits.
Note, `link->dev` should always exist when link state is initialized or
later.
The outstanding kernel panic should be already fixed in recent enough
kernels by [0]. To make the test safe to run anywhere, let's implement
a simple kernel version check and run the test only if we're running
with at least kernel 6.x. The patch might be in some 5.x kernels as
well, but let's be on the safe side and use 6.x as a baseline here
(which is currently the case for Arch and Fedora Rawhide anyway).
[0] https://lore.kernel.org/netdev/7b3fd03e1a46047e5ffe2a389fe74501f0a93206.1656519221.git.sd@queasysnail.net/T/#u
Previously, ata_id might not be able to retrieve attributes correctly,
and properties from usb_id were used as a fallback. See issue #24921
and PR #24923. To keep backward compatibility, still we need to create
symlinks based on USB serial.
Fixes#25179.
When installing systemd 252 in debian:
Setting up systemd (252~rc3-2) ...
Installing new version of config file /etc/systemd/logind.conf ...
Installing new version of config file /etc/systemd/system.conf ...
Installing new version of config file /etc/systemd/user.conf ...
/usr/lib/tmpfiles.d/provision.conf:13: Credential 'login.motd' not specified, skipping line.
/usr/lib/tmpfiles.d/provision.conf:14: Credential 'login.issue' not specified, skipping line.
/usr/lib/tmpfiles.d/provision.conf:17: Credential 'network.hosts' not specified, skipping line.
/usr/lib/tmpfiles.d/provision.conf:22: Credential 'ssh.authorized_keys.root' not specified, skipping line.
/usr/lib/tmpfiles.d/systemd.conf:43: Copy source path '/.extra/tpm2-pcr-signature.json' does not exist, skipping line.
/usr/lib/tmpfiles.d/systemd.conf:44: Copy source path '/.extra/tpm2-pcr-public-key.pem' does not exist, skipping line.
Downgrade to debug level
Even if different preference is specified, the kernel merges multiple
routes with the same preference. This is problematic when a network has
multiple routers.
Fixes#25138.
We have already allowed to reconfigure failed interface manually, but
not allowed to do automatically, e.g. on carrier gain.
This makes that failed interfaces also reconfigured automatically.
Note, the condition is inversed to shorten the condition.
Follow-up for 778e3da95e.
These settings are saved only when a .network file is assigned to the
interface. Let's silence noisy logs for unmanaged interfaces.
Note, previously `use_mac` set with `test_mode`. As `dev`, which is set with
`client->dev`, is not set when running test or fuzzer. Hence, the condition
```
if (udev_available() && !use_mac)
```
is effectively equivalent to
```
if (dev)
```
So, this commit mostly does not change behavior. Except for the following
corner case.
The sd_device object assigned from networkd (that is, Link.dev) never
has ID_RENAMING udev property, as sd_device objects which has the property
are filtered out at `link_check_initialized()` or `manager_udev_process_link()`
in networkd-link.c.
However, sd_device object created in `dhcp_identifier_set_iaid()` in the
previous code may have it. Such situation may (at least, theoretically)
happen when the network interface is renamed after initialized, e.g. by
creating the following spurious .link file:
```
[Match]
OriginalName=eno1
[Link]
Name=lan
```
and then trigger uevent for the network interface while systemd-networkd
calling `dhcp_identifier_set_iaid()`.
As in most cases, tty device without input devices is meaningless.
This also swaps the priority of tty and net:
- input devices are often connected under USB bus, hence may take
slightly much time to be initialized. As, described in the above,
in most cases it is allowed that tty devices are initialized just
before input devices,
- network configuration usually requires much time, e.g. DHCP or RA,
hence it is better that network interfaces initialized. Then,
network services can start DHCP client or friends earlier.
Fixes#24026.
Arguably, CC0 is just fine for examples since they are not code. But it's
easier to be consistent and just use MIT-0 for all "documentation". Thus,
the license is changed similarly code examples under man/.
Based on 'git shortlog -ns network/*' and 'git log -p', the following folks
should ack this:
Zbigniew Jędrzejewski-Szmek
Lennart Poettering
Tom Gundersen
Yu Watanabe
Daan De Meyer
Marc-André Lureau
See parent commit for explanation.
git blame shows Martin Pitt is the author of the code.
(I was considering whether we should instead drop this file, but it's still
useful for *distributions*. Eveen if we discourage people from using sysv
scripts, distributions will have to deal with them for a while yet.)
Quoting Richard Fontana in [1]:
CC0 has been listed by Fedora as a 'good' license for code and content
(corresponding to allowed and allowed-content under the new system). We plan
to classify CC0 as allowed-content only, so that CC0 would no longer be
allowed for code.
Over a long period of time a consensus has been building in FOSS that
licenses that preclude any form of patent licensing or patent forbearance
cannot be considered FOSS. CC0 has a clause that says: "No trademark or
patent rights held by Affirmer are waived, abandoned, surrendered, licensed
or otherwise affected by this document." (The trademark side of that clause
is nonproblematic from a FOSS licensing norms standpoint.) The regular
Creative Commons licenses have similar clauses.
For the case of our documentation snippets, patent issues do not matter much.
But it is always nicer to have a license that is considerred acceptable without
any further considerations. So let's change the license to the (now recommended
replacement) MIT-0.
[1] https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/NO7KGDNL5GX3KCB7T3XTGFA3QPSUJA6R/
Using 'git blame -b' and 'git log -p --follow', I identified the following
folks as having made non-trivial changes to those snippets:
Lennart Poettering
Tom Gundersen
Luca Bocassi
Zbigniew Jędrzejewski-Szmek
Thomas Mühlbacher
Daan De Meyer
I'll ask for confirmation in the pull request.
