According to the docs, and to the
org.freedesktop.login1.get-reboot-to-boot-loader-menu code, the
(oneshot) boot-loader-menu timeout should be stored in
/run/systemd/reboot-to-boot-loader-menu, but the set method was storing it
in /run/systemd/reboot-to-loader-menu.
This commit fixes this. Note that the fixed name also is a better match
for the dbus call names and matches the related
/run/systemd/reboot-to-boot-loader-entry structure, so fixing the set code,
rather then the get code + docs seems like the right thing to do here.
With this we are now caching all EFI variables that we expose as
property in logind. Thus a client invoking GetAllProperties() should
only trgger a single read of each variable, but never repeated ones.
Obsoletes: #16190Fixes: #14828
The data from this EFI variable is exposed as dbus property, and gdbus
clients are happy to issue GetAllProperties() as if it was free. Hence
make sure it's actually free and cache LoaderConfigTimeoutOneShot, since
it's easy.
We used to log the following error:
"Start job for unit user-1000.slice failed with 'canceled'"
which can be really misleading if the actual job failed at *stopping* a unit.
Indeed "Start" was hard coded but it was wrong since we can also fail with stop
jobs which are enqueued when a session is stopped.
Let's lock this down a bit. Effectively nothing much changes, since the
default PK policy will allow users on the VT to change VT. Only users
with no local VT session won't be able to switch VTs.
The same as parent commit, but users. This is the third and last
foo_object_find() function in logind, so I think that this particular
family of bugs is finally squashed.
The story is the same as in 471cffcfb0e005b7c4044b3b52cc4f25d217efac:
device_attach() → seat_send_changed() → sd_bus_emit_properties_changed_strv()
→ emit_properties_changed_on_interface() → node_vtable_get_userdata()
→ seat_object_find(), which returns 0 because message == NULL.
But when we are emitting a signal, message is always NULL. Removing the
overeager check and assert in the called function allow the signal to be
emitted.
Fixes#13769.
As documented in the man-page, readdir() may return a directory entry with
d_type == DT_UNKNOWN. This must be handled for regular filesystems.
dirent_ensure_type() is available to set d_type if necessary. Use it in
some more places.
Without this systemd will fail to boot correctly with nfsroot and some
other filesystems.
Closes#13609
I want to use efivars.[ch] in proc-cmdline.c, but most of the efivars stuff is
not needed in basic/. Move the file from shared/ to basic/, but then move back
most of the higher-level functions to the new shared/efi-loader.c file.
We would not send the property because we'd call sd_bus_get_current_message()
which would return NULL. If there is no message, we cannot support /self or
/auto, but things are still OK if a path with a session name is given.
Traceback when the issue is triggered:
#2 we'd call sd_bus_get_current_message() here, which would return NULL, and
session_object_find() would immediately return 0.
#3 0x00000000004289b7 in session_object_find (bus=0x9f1110, path=0xa160b0 "/org/freedesktop/login1/session/c2",
interface=0x9efda0 "org.freedesktop.login1.Session", userdata=0x9852f0, found=0x7ffe3e975fe8, error=0x7ffe3e9760b0)
at ../src/login/logind-session-dbus.c:620
#4 0x00007ff74bfdde39 in node_vtable_get_userdata (bus=0x9f1110, path=0xa160b0 "/org/freedesktop/login1/session/c2",
c=0x9f6d58, userdata=0x7ffe3e976070, error=0x7ffe3e9760b0) at ../src/libsystemd/sd-bus/bus-objects.c:37
#5 0x00007ff74bfe49af in emit_properties_changed_on_interface (bus=0x9f1110,
prefix=0xa133a0 "/org/freedesktop/login1/session", path=0xa160b0 "/org/freedesktop/login1/session/c2",
interface=0x43f9f8 "org.freedesktop.login1.Session", require_fallback=true, found_interface=0x7ffe3e976163,
names=0x7ffe3e9761b0) at ../src/libsystemd/sd-bus/bus-objects.c:2088
#6 0x00007ff74bfe56a4 in sd_bus_emit_properties_changed_strv (bus=0x9f1110,
path=0xa160b0 "/org/freedesktop/login1/session/c2", interface=0x43f9f8 "org.freedesktop.login1.Session",
names=0x7ffe3e9761b0) at ../src/libsystemd/sd-bus/bus-objects.c:2291
#7 0x00000000004292ea in session_send_changed (s=0xa16e10, properties=0x43ee27 "Active")
at ../src/login/logind-session-dbus.c:730
#8 0x0000000000424cd7 in seat_set_active (s=0x9ee280, session=0xa16e10) at ../src/login/logind-seat.c:249
#9 0x00000000004251cf in seat_active_vt_changed (s=0x9ee280, vtnr=3) at ../src/login/logind-seat.c:361
#10 0x000000000042547b in seat_read_active_vt (s=0x9ee280) at ../src/login/logind-seat.c:395
#11 0x000000000040ab5c in manager_dispatch_console (s=0x9f0320, fd=8, revents=8, userdata=0x9852f0)
at ../src/login/logind.c:588
#12 0x00007ff74c042d5f in source_dispatch (s=0x9f0320) at ../src/libsystemd/sd-event/sd-event.c:2828
#13 0x00007ff74c04469f in sd_event_dispatch (e=0x9ef340) at ../src/libsystemd/sd-event/sd-event.c:3241
#14 0x00007ff74c044b58 in sd_event_run (e=0x9ef340, timeout=18446744073709551615)
at ../src/libsystemd/sd-event/sd-event.c:3299
#15 0x000000000040d7e8 in manager_run (m=0x9852f0) at ../src/login/logind.c:1186
#16 0x000000000040db58 in run (argc=1, argv=0x7ffe3e976728) at ../src/login/logind.c:1234
#17 0x000000000040dc30 in main (argc=1, argv=0x7ffe3e976728) at ../src/login/logind.c:1244
Fixes#13437. Bug introduced in 3b92c086a8.
Previously, logind's logind-session.h would define prototypes for
logind-session.c and logind-session-dbus.c. Split that out, so that
there's a separate logind-session-dbus.h for that. Similar for seats and
users as well as the manager itself.
This changes no code, just rearranges where protoypes are located.
Most of the operations one can do on sessions so far accepted an empty
session name as a shortcut for the caller's session. This is quite
useful traditionally, but much less useful than it used to be, since
most user code now (rightfully) runs in --user context, not in a
session.
With this change we tweak the logic a bit: we introduce the two special
session and seat names "self" and "auto". The former refers to the
session/seat the client is in, and is hence mostly equivalent to te
empty string "" as before. However, the latter refers to the
session/seat the client is in if that exists, with a fallback of the
user's display session if not. Clients can hence reference "auto"
instead of the empty string if they really don't want to think much
about sessions.
Why "self" btw? Previously, we'd already expose a special dbus object
with the path /org/freedesktop/login1/session/self (and similar for the
seat), matching what the empty string did for bus calls that took a
session name. With this scheme we reuse this identifier and introduce
"auto" in a similar way.
Of course this means real-life seats and sessions can never be named
"self" or "auto", but they aren't anyway: valid seat names have to start
with "seat" anyway, and sessions are generated server-side as either a
numeric value or "c" suffixed with a counter ID.
Fixes: #12399
This adds support for user to set & get reboot parameter for reboot.
As callee would be next issuing Reboot call same policy checks are being used.
If unit file issuing the reboot action defines RebootArgument (or similar) that
setting takes precedence.
This behaves similar to the "boot into firmware" logic, and also allows
either direct EFI operation (which sd-boot supports and others might
support eventually too) or override through env var.
This extends the reboot-to-firmware logic in logind, so that other than
EFI firmwares could be theoretically support. The scheme is like this:
if you want to support this, set the $SYSTEMD_REBOOT_TO_FIRMWARE=1 env
var for logind. If so, this will override the EFI logic, and cause a
file /run/systemd/reboot-to-firmware file to be created when
reboot-to-firmware is requested. This file has no contents, it's mere
existance indicates a reboot with reboot-to-firmware set.
The idea is that for alternative firmwares a drop-in for logind is added
that sets the env var, in combination with some code run during shutdown
that checks for the file and does the right thing.
Lennart Poettering