device_open_from_devnum() returns two things: the devname via
an output param, and the fd via the return value. Rename the param
to signal that it's not the only return channel.
Dynamically load liblz4, libzstd and liblzma with dlopen().
This helps to reduce the size of the initrd image when these libraries
are not really needed.
For the very similar case of the product UUID we have its own error
BUS_ERROR_NO_PRODUCT_UUID if we have no UUID. Let's mirror this for the
hardware serial, and expose the same, to keep things nicely symmteric.
The glibc API is behind the wrapper is called "secure_getenv()", hence
our wrapper really should keep the order too, otherwise things are just
too confusing.
Allow to set the broadcast queueing threshold
on macvlan devices. This controls which multicast packets will be
processed in a workqueue instead of inline.
Allows to configure bond arp_missed_max is the maximum number of arp_interval monitor cycle
for missed ARP replies. If this number is exceeded, link is reported as
down.
This is very similar to ActivateHome() but will fail if the home
directory is not referenced yet. Or in other words, this doesn't add any
new reference, but simply is the other side of RefUnrestricted(): if we
allowed a home dir to be referenced without it actually being active,
then this can catch up with things and activated what was previously
referenced already.
This also relaxes access rights to that users can always activate their
own home dirs. This is useful once we allow user code to run without the
home dir being activated.
This pulls this generally useful helper out of sysusers and into the
util lib, and updates the places throughout the codebase where it makes
sense to use it.
When the offset of the last entry object (or last object for journal
files generated by an old journald) is not changed, the timestamps
should be updated by journal_file_read_tail_timestamp() are unchanged.
So, we can drop to call fstat() in the function.
As, the journal header is always mapped, so we can read the offset and
journal file state without calling fstat.
Still, when the last entry offset is changed, we may need to call fstat()
to read the entry object. But, hopefully the number of fstat() call
can be reduced.
In journal_file_next_entry(), if the passed offset matches an entry object,
then generic_array_bisect() returns the object, but the object we
requested is the next (or previous) object. Hence, we should not validate
the object returned by generic_array_bisect(), otherwise it may fail
when the journal is corrupted.
Note the validity of the entry object that should be returned by
journal_file_next_entry() will be checked in the following generic_array_get().
So, when journal_file_next_entry() succeeds, the returned object is
always validated.
Let's consider the case that
- the first array contains valid entries,
- all entries in the second array are corrupted.
Then, when we are going to upwards, and a call of generic_array_bisect()
matches the last entry of the first array, then the second array was
cached with last_index == UINT64_MAX, instead of the first array with
its last entry.
Hence, when generic_array_bisect() is called next time, the function call
of test() always fail. So, the cache entry is mostly meaningless.
Let's always store valid cache entry.
Prompted by https://github.com/systemd/systemd/pull/30085#discussion_r1401534107.
Note, like Reconfigure bus method, even reconfiguration for an interface is
triggered by Reload method, the method only wait for the link enters
configuring state (or unmanaged state if no matching .network file exists).
Users still need to invoke systemd-networkd-wait-online if it is
necessary to wait for the interface enters configured state after Reload
medhod.
This makes rtnl_resolve_interface() always check the existence of the
resolved interface, which previously did not when a decimal formatted
ifindex is provided, e.g. "1" or "42".
Zbigniew Jędrzejewski-Szmek
Yu Watanabe
Lennart Poettering
Mike Yuan
Luca Boccassi
SidhuRupinderandFrantisek Sumsal
Daan De Meyer
Matteo Croce
Susant Sahani
Adrian Vovk
