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arg_root defaults to null, so if --root isn't given, this would try reading
etc/machine-info from the current working directory, which is likely to fail.
Fixes: 77db9ef2ab ("boot: Make sure we take --root into account everywhere.")
We usually configure a test rule with a unique priority. Hence, finding
rule by priority reduces the lines of output, and we can debug easily.
Also print short comments on check. That's helpful when the check is
called several times.
Otherwise, the other RoutingPolicyRule object may not have a valid
address family yet, and the existing rule may be wrongly handled as
that it is not requested by any interface, and it may be removed.
Follow-up for 727235006a.
Fixes#34068.
This softens the behavior originally introduced in eded61e410 to apply
only to the fallback dns servers.
The intent is that the global FallbackDNS (instead of DNS) can now be
used in conjunction with the per-link dns, providing a fallback behavior
without introducing a scope overlap.
References: eded61e410 (resolved: demote the global unicast scope, 2024-08-19)
This expands the role of fallback servers so they are applied not only
when there are no dns servers configured, but when all the configured
dns servers are configured only for non-default-route links.
This commit may have been a breaking change for sd-resolved foreign
resolv.conf mode, where a legacy network management daemon directly
modifies resolv.conf and sd-resolved consumes that.
This reverts commit eded61e410.
Follow-up for 7ac58157ca
With the mentioned commit, iff E2BIG we'd retry pidfd_spawn()
with POSIX_SPAWN_SETCGROUP disabled. However, the same strategy
should actually apply to EOPNOTSUPP/ENOSYS/EPERM too -
they can mean two things here: no clone3() or no CLONE_PIDFD.
Therefore, let's first try clone() + CLONE_PIDFD, and fall further back
to plain clone() (posix_spawn()) only as last resort. Plus, record
the fact so that we don't unnecessarily retry every single time
if CLONE_PIDFD is the one that's unavailable.
mkfs.btrfs has recently learned new options --subvol and --default-subvol
so let's stop failing when Subvolumes= and DefaultSubvolume= are used offline
and use the new --subvol and --default-subvol options instead to create subvolumes
in the generated root filesystem without root privileges or loop devices.
This is the command-line tool to manage systemd-sysudpated
Co-authored-by: Tom Coldrick <thomas.coldrick@codethink.co.uk>
Co-authored-by: Abderrahim Kitouni <abderrahim.kitouni@codethink.co.uk>
EINVAL means the kernel doesn't support it, ENODEV means it's
already revoked or the device is no longer there which has the same
effect anyway. All others - let's print an error to the logs.
We can easily hit the assertions without checking the internal states of
the DHCP client before calling these functions. That's annoying.
Let's do more gracefully.
When an interface enters the failed state, even if the DHCP client is
stopped, the acquired DHCP lease is not unreferenced, as the callback
dhcp4_handler() do nothing in that case. When the failed interface is
being reconfigured after that, the DHCP client is stopped again
(though it is already stopped), and SD_DHCP_CLIENT_EVENT_STOP event is
triggered and sd_dhcp_client_send_release() is called, and the
assertion in the function is triggered.
E.g.
===
systemd-networkd[98588]: wlp59s0: DHCPv4 address 192.168.86.250/24, gateway 192.168.86.1 acquired from 192.168.86.1
systemd-networkd[98588]: wlp59s0: Could not set DHCPv4 route: Nexthop has invalid gateway. Network is unreachable
systemd-networkd[98588]: wlp59s0: Failed
systemd-networkd[98588]: wlp59s0: State changed: configuring -> failed
systemd-networkd[98588]: wlp59s0: The interface entered the failed state frequently, refusing to reconfigure it automatically.
systemd-networkd[98588]: wlp59s0: DHCPv4 client: STOPPED
systemd-networkd[98588]: wlp59s0: DHCPv4 client: State changed: bound -> stopped
systemd-networkd[98588]: Got message type=method_call sender=:1.449 destination=org.freedesktop.network1 path=/org/freedesktop/network1 interface=org.freedesktop.network1.Manager member=ReconfigureLink ...
systemd-networkd[98588]: wlp59s0: State changed: failed -> initialized
systemd-networkd[98588]: wlp59s0: found matching network '/etc/systemd/network/50-wifi.network'.
systemd-networkd[98588]: wlp59s0: Configuring with /etc/systemd/network/50-wifi.network.
systemd-networkd[98588]: wlp59s0: DHCPv4 client: STOPPED
systemd-networkd[98588]: Assertion 'sd_dhcp_client_is_running(client)' failed at src/libsystemd-network/sd-dhcp-client.c:2197, function sd_dhcp_client_send_release(). Aborting.
===
When the interface is in the failed state, link_getlink_handler_internal()
will do nothing and return zero, thus the interface will not be
reconfigured, especially when the reconfiguration is triggered in
link_enter_failed().
Follow-up for c2eb7753dd.
