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Enable the exec_fd logic for Type=notify* services too, and change it
to send a timestamp instead of a '1' byte. Record the timestamp in a
new ExecMainHandoverTimestamp property so that users can track accurately
when control is handed over from systemd to the service payload, so
that latency and startup performance can be trivially and accurately
tracked and attributed.
When an IO event source owns relevant fd, replacing with a new fd leaks
the previously assigned fd.
===
sd_event_add_io(event, &s, fd, ...);
sd_event_source_set_io_fd_own(s, true);
sd_event_source_set_io_fd(s, new_fd); <-- The previous fd is not closed.
sd_event_source_unref(s); <-- new_fd is closed as expected.
===
Without the change, valgrind reports the leak:
==998589==
==998589== FILE DESCRIPTORS: 4 open (3 std) at exit.
==998589== Open file descriptor 4:
==998589== at 0x4F119AB: pipe2 (in /usr/lib64/libc.so.6)
==998589== by 0x408830: test_sd_event_source_set_io_fd (test-event.c:862)
==998589== by 0x403302: run_test_table (tests.h:171)
==998589== by 0x408E31: main (test-event.c:935)
==998589==
==998589==
==998589== HEAP SUMMARY:
==998589== in use at exit: 0 bytes in 0 blocks
==998589== total heap usage: 33,305 allocs, 33,305 frees, 1,283,581 bytes allocated
==998589==
==998589== All heap blocks were freed -- no leaks are possible
==998589==
==998589== For lists of detected and suppressed errors, rerun with: -s
==998589== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
Follow-ups for 74c4231ce5.
Previously, the path is obtained from the fd, but it is closed in
sd_event_loop() to unpin the filesystem.
So, let's save the path when the event source is created, and make
sd_event_source_get_inotify_path() simply read it.
We look for the root fs on the device of the booted ESP, and for the
other partitions on the device of the root fs. On EFI systems this
generally boils down to the same, but there are cases where this doesn't
hold, hence document this properly.
Fixes: #31199
This commit adds support for loading, measuring and handling a ".ucode"
UKI section. This section is functionally an initrd, intended for
microcode updates. As such it will always be passed to the kernel first.
Resolve at attach/detach/inspect time, so that the image is pinned and requires
re-attaching on update, given files are extracted from it so just passing
img.v/ to RootImage= is not enough to get a portable image updated
This reworkds --recovery-pin= from a parameter that takes a boolean to
an enum supporting one of "hide", "show", "query".
If "hide" (default behaviour) we'll generate a recovery pin
automatically, but never show it, and thus just seal it and good.
If "show" we'll generate a recovery pin automatically, but display it in
the output, so the user can write it down.
If "query" we'll ask the user for a recovery pin, and not automatically
generate any.
For compatibility the old boolean behaviour is kept.
With this you can now do "systemd-pcrlock make-policy
--recovery-pin=show" to set up the first policy, write down the recovery
PIN. Later, if the PCR prediction didn't work out one day you can then
do "systemd-pcrlock make-policy --recovery-pin=query" and enter the
recovery key and write a new policy.
