This commit adds support for disabling the read and write
workqueues with the new crypttab options no-read-workqueue
and no-write-workqueue. These correspond to the cryptsetup
options --perf-no_read_workqueue and --perf-no_write_workqueue
respectively.
man/systemd-nspawn: document hashing machine name for uid base
Explicitly document the behavior introduced in #7437: when picking a new
UID shift base with "-U", a hash of the machine name will be tried
before falling back to fully random UID base candidates.
pali [Sun, 20 Dec 2020 02:24:51 +0000 (03:24 +0100)]
udev: Updates for cdrom_id helper
cdrom_id udev helper does not parse all MMC profiles. Following change
fixes this issue and parse all 34 profiles from all MMC standard versions.
Also it replaces magic constants by macros provided by linux/cdrom.h and
fixes cd_profiles_old_mmc() to issue READ_DISC_INFO command in two steps,
like it is doing kernel and also mkudffs.
Florian Klink [Sun, 20 Dec 2020 17:24:05 +0000 (18:24 +0100)]
man/systemd.netdev: clarify the wireguard AllowedIPs= setting
`AllowedIPs=` only affects "routing inside the network interface
itself", as in, which wireguard peer packets with a specific destination
address are sent to, and what source addresses are accepted from which
peer.
To cause packets to be sent via wireguard in first place, a route via
that interface needs to be added - either in the `[Routes]` section on
the `.network` matching the wireguard interface, or outside of networkd.
This is a common cause of misunderstanding, because tools like wg-quick
also add routes to the interface. However, those tools are meant as a
"extremely simple script for easily bringing up a WireGuard interface,
suitable for a few common use cases (from their manpage).
Networkd also should support other usecases - like setting AllowedIPs to
0.0.0.0/0 and ::/0 and having a dynamic routing protocol setting more
specific routes (or the user manually setting them).
Daan De Meyer [Sat, 19 Dec 2020 18:47:50 +0000 (19:47 +0100)]
mkosi: Add basic editors to final images
It's often useful to have an editor available to edit some random
config file in the final image. Let's install some basic editors
that don't take up too much space.
Daan De Meyer [Sat, 19 Dec 2020 14:25:41 +0000 (15:25 +0100)]
mkosi: Use --only-changed meson option when installing
Recently, mkosi gained support for specifying an --install-directory
option to save the contents of the install directory between bulids.
By enabling the --only-changed meson install option, meson won't
overwrite the contents of files that haven't changed since the last
build when using --install-directory.
man: Advertise systemd-time-wait-sync.service more (#17729)
* man: Advertise systemd-time-wait-sync.service more
The description of time-sync.target says that NTP services *should* pull
that target, but doesn't mention that e.g. systemd-timesyncd.service
doesn't actually do that. As a result, time-sync.target is reached way
earlier than people expect; see #5097, #8861, #11008.
systemd provides systemd-time-wait-sync.service to ameliorate this
problem, but doesn't feature it prominently in relevant manpages. In
fact, it's only mentioned in passing in systemd-timesyncd.service(8). As
a result, I ended up re-implementing that service, and I'm not the first
one: https://github.com/NixOS/nixpkgs/pull/51338
This patch adds a mention right in the description of time-sync.target,
which will hopefully raise awareness of this helper service.
Devon Pringle [Mon, 14 Dec 2020 06:23:17 +0000 (16:23 +1000)]
networkd: add RouteDenyList
Allow configuration for IPv6 discovered routes to be ignored instead of
adding them as a route. This can be used to block unwanted routes, for
example, you may wish to not receive some set of routes on an interface
if they are causing issues.
core: order timer units after both time-sync.target and time-set.target
If users do not enable a service like systemd-time-wait-sync.target
(because they don't want to delay boot for external events, such as an
NTP sync), then timers should still take the the weaker time-set.target
feature into account, so that the clock is at least monotonic.
Hence, order timer units after both of the targets: time-sync.target
*and* time-set.target. That way, the right thing will happen regardless
if people have no NTP server (and thus also no
systemd-time-wait-sync.service or equivalent) or, only have an NTP
server (and no systemd-time-wait-sync.service), or have both.
Ordering after time-set.target is basically "free". The logic it is
backed by should be instant, without communication with the outside
going on. It's useful still so that time servers that implement the
timestamp from /var/ logic can run in later boot.
units: don't pull in time-sync.target from systemd-timesyncd.service
systemd-timesyncd.service only applies the much weaker monotonic clock
from file logic, i.e should pull in and order itself before
time-set.target. The strong time-sync.target unit is pulled in by
systemd-time-wait-sync.service.
json: add APIs for quickly inserting hex blobs into as JSON strings
This is similar to the base64 support, but fixed-size hash values are
typically preferably presented as series of hex values, hence store them
here like that too.
cryptsetup: read PKCS#11 key and token info from LUKS2 metadata
Optionally, embedd PKCS#11 token URI and encrypted key in LUKS2 JSON
metadata header. That way it becomes very easy to unlock properly set up
PKCS#11-enabled LUKS2 volumes, a simple /etc/crypttab line like the
following suffices:
Such a line declares that unlocking via PKCS#11 shall be attempted, and
the token URI and the encrypted key shall be read from the LUKS2 header.
An external key file for the encrypted PKCS#11 key is hence no longer
necessary, nor is specifying the precise URI to use.
So the currentl and only fd_is_mount_point() check is actually entirely
bogus: it passes "/" as filename argument, but that's not actually a
a valid filename, but an absolute path.
fd_is_mount_point() is written in a way tha the fd refers to a directory
and the specified path is a file directly below it that shall be
checked. The test call actually violated that rule, but still expected
success.
Let's fix this, and check for this explicitly, and refuse it.
Let's extend the test and move it to test-mountpoint-util.c where the
rest of the tests for related calls are placed.
tree-wide: suggest meson command lines instead of ninja ones
This only changes documentation. In various places we call "ninja"
directly. I figured it would be safer to leave those in place for now,
given the meson replacement commands lines appears to be supported in
newer meson versions only.
Bastien Nocera [Wed, 2 Dec 2020 11:40:42 +0000 (12:40 +0100)]
udev: Extract RAM properties from DMI information
Add memory_id program to set properties about the physical memory
devices in the system. This is useful on machines with removable memory
modules to show how the machine can be upgraded, and on all devices to
detect the actual RAM size, without relying on the OS accessible amount.
test-login: skip consistency checks when logind is not active
There are two ways in swich sd_login_* functions acquire data:
some are derived from the cgroup path, but others use the data serialized
by logind.
When the tests are executed under Fedora's mock, without systemd-spawn
but instead in a traditional chroot, test-login gets confused:
the "outside" cgroup path is visible, so sd_pid_get_unit() and
sd_pid_get_session() work, but sd_session_is_active() and other functions
that need logind data fail.
Such a buildroot setup is fairly bad, but it can be encountered in the wild, so
let's just skip the tests in that case.
/* Information printed is from the live system */
sd_pid_get_unit(0, …) → "session-237.scope"
sd_pid_get_user_unit(0, …) → "n/a"
sd_pid_get_slice(0, …) → "user-1000.slice"
sd_pid_get_session(0, …) → "237"
sd_pid_get_owner_uid(0, …) → 1000
sd_pid_get_cgroup(0, …) → "/user.slice/user-1000.slice/session-237.scope"
sd_uid_get_display(1000, …) → "(null)"
sd_uid_get_sessions(1000, …) → [0] ""
sd_uid_get_seats(1000, …) → [0] ""
Assertion 'r >= 0' failed at src/libsystemd/sd-login/test-login.c:104, function test_login(). Aborting.
Devon Pringle [Mon, 14 Dec 2020 04:22:18 +0000 (14:22 +1000)]
networkd: handle ignoring ll gateway being link ll
In the event where network discovery gets a route with the gateway being
the interfaces local link address, networkd will fail the interface.
systemd-networkd[44319]: br_lan: Configuring route: dst: fdcd:41a4:5559:ec03::/64, src: n/a, gw: fe80::e4da:7eff:fe77:5c5e, prefsrc: n/a, scope: global, table: main, proto: ra, type: unicast
systemd-networkd[44319]: br_lan: Could not set NDisc route or address: Gateway can not be a local address. Invalid argument
systemd-networkd[44319]: br_lan: Failed
systemd-networkd[44319]: br_lan: State changed: configuring -> failed
This patch, instead of allowing the interface to fail, will instead log
the event and skip setting the route.