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With these patches applied, networkd is successfully able to get an
address from a DHCP server on an IPoIB interface.
1)
Makes networkd pass the actual interface type to the dhcp client,
instead of hardcoding it to Ethernet.
2)
Fixes some issues in handling the larger (20 Byte) IB MAC addresses in
the dhcp code.
3)
Add a new field to networkds Link struct, which holds the interface
broadcast address.
3.1)
Modify the DHCP code to also expect the broadcast address as parameter.
On an Ethernet-Interface the Broadcast address never changes and is always
all 6 bytes set to 0xFF.
On an IB one however it is not neccesarily always the same, thus
fetching the actual address from the interface is neccesary.
4)
Only the last 8 bytes of an IB MAC are stable, so when using an IB MAC to
generate a client ID, only pass those 8 bytes.
This passes the legacy ethernet address to functions in a lot of places,
which all will need migrated to handle arbitrary size hardware addresses
eventually.
Hardware addresses come in various shapes and sizes, these new functions
and accomapying data structures account for that instead of hard-coding
a hardware address to the 6 bytes of an ethernet MAC.
Ideally, we'd read back what we wrote, but that would have been
much more complicated. But just writing stuff is useful to test under
valgrind or manually.
We had two of each: both homectl and journalctl had the whole dlopen()
wrapper, and journalctl had two implementations (slightly different) of the
code to print the fss:// pattern.
print_qrcode() now returns -EOPNOTSUPP when compiled with qrcode support. Both
callers ignore the return value, so this changes nothing.
No functional change.
To make things simple and robust when debugging journald, we'll leave
the SO_TIMESTAMP invocations in the C code in place, even if they are
now typically redundant, given that the sockets are already passed into
the process with SO_TIMESTAMP turned on now.
This adds a way to control SO_TIMESTAMP/SO_TIMESTAMPNS socket options
for sockets PID 1 binds to.
This is useful in journald so that we get proper timestamps even for
ingress log messages that are submitted before journald is running.
We recently turned on packet info metadata from PID 1 for these sockets,
but the timestamping info was still missing. Let's correct that.
Let's not have #ifdeffery both in the consumers and the providers of the
selinux glue code. Unless the code is particularly complex, let's do the
ifdeffery only in the provider of the selinux glue code, and let's keep
the consumers simple and just invoke it.
So far half of sd_event_source_set_enabled() was doing enabling, the
other half was doing disabling. Let's split that into two separate
calls.
(This also adds a new shortcut to sd_event_source_set_enabled(): if the
caller toggles between "ON" and "ONESHOT" we'll now shortcut this, since
the event source is already enabled in that case and shall remain
enabled.)
This heavily borrows and is inspired from Michal Sekletár's #17284
refactoring.
We typically don't just reshuffle a single prioq at once, but always
two. Let's add two helper functions that do this, and reuse them
everywhere.
(Note that this drops one minor optimization:
sd_event_source_set_time_accuracy() previously only reshuffled the
"latest" prioq, since changing the accuracy has no effect on the
earliest time of an event source, just the latest time an event source
can run. This optimization is removed to simplify things, given that
it's not really worth the effort as prioq_reshuffle() on properly
ordered prioqs has practically zero cost O(1)).
(Slightly generalized, commented and split out of #17284 by Lennart)
[zjs: Replaces #17149.
I took half of the patch in
https://github.com/systemd/systemd/pull/17149#issuecomment-698399194,
hence I'm keeping Jonathan's authorship.
The original reasoning for 6c5496c492 was that we
enable remote-cryptsetup.target via presets, and since presets are not used for
the initrd, we need a different target. But since parts of the unit and target
tree are shared between the initramfs and the main system, we can't just create
a separate target for the initramfs. All the targets that depend on this one
would need to be split also. That condition is true for initrd-fs.target, but
not for sysinit.target.
So let's instead just uncoditionally pull in remote-cryptsetup.target in the
initramfs. It should normally be empty, so there should be no impact on boots
that don't have units in the target.
Jonathan's patch used initrd-root-fs.target, this version instead uses
initrd-root-device.target. initrd-root-device.target is ordered before
sysroot.mount, which means that the decrypted devices will be available earlier
too.]
This reverts commit 6c5496c492.
sysinit.target is shared between the initrd and the host system. Pulling in
initrd-cryptsetup.target into sysinit.target causes the following warning at
boot:
Oct 27 10:42:30 workstation-uefi systemd[1]: initrd-cryptsetup.target: Starting requested but asserts failed.
Oct 27 10:42:30 workstation-uefi systemd[1]: Assertion failed for initrd-cryptsetup.target.
If processes remain in the unit's cgroup after the final SIGKILL is
sent and the unit has exceeded stop timeout, don't release the unit's
cgroup information. Pid1 will have failed to `rmdir` the cgroup path due
to processes remaining in the cgroup and releasing would leave the cgroup
path on the file system with no tracking for pid1 to clean it up.
Instead, keep the information around until the last process exits and pid1
sends the cgroup empty notification. The service/scope can then prune
the cgroup if the unit is inactive/failed.
Ubuntu builds on the Launchpad infrastructure run inside a chroot that does
not have the sysfs cgroup dirs mounted, so this call will return ENOMEDIUM
from cg_unified_cached() during the build-time testing, for example when
building the package in a Launchpad PPA.
This effectively reverts the commit 22fc2420b2.
The function `asynchronous_close()` confuses valgrind. Before this commit,
valgrind may report the following:
```
HEAP SUMMARY:
in use at exit: 384 bytes in 1 blocks
total heap usage: 4,787 allocs, 4,786 frees, 1,379,191 bytes allocated
384 bytes in 1 blocks are possibly lost in loss record 1 of 1
at 0x483CAE9: calloc (vg_replace_malloc.c:760)
by 0x401456A: _dl_allocate_tls (in /usr/lib64/ld-2.31.so)
by 0x4BD212E: pthread_create@@GLIBC_2.2.5 (in /usr/lib64/libpthread-2.31.so)
by 0x499B662: asynchronous_job (async.c:47)
by 0x499B7DC: asynchronous_close (async.c:102)
by 0x4CFA8B: client_initialize (sd-dhcp-client.c:696)
by 0x4CFC5E: client_stop (sd-dhcp-client.c:725)
by 0x4D4589: sd_dhcp_client_stop (sd-dhcp-client.c:2134)
by 0x493C2F: link_stop_clients (networkd-link.c:620)
by 0x4126DB: manager_free (networkd-manager.c:867)
by 0x40D193: manager_freep (networkd-manager.h:97)
by 0x40DAFC: run (networkd.c:20)
LEAK SUMMARY:
definitely lost: 0 bytes in 0 blocks
indirectly lost: 0 bytes in 0 blocks
possibly lost: 384 bytes in 1 blocks
still reachable: 0 bytes in 0 blocks
suppressed: 0 bytes in 0 blocks
For lists of detected and suppressed errors, rerun with: -s
ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
```
