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let's drop the "now" argument, it's exactly what MANAGER_IS_RUNNING()
returns, hence let's use that instead to simplify things.
Moreover, let's change the add/found argument pair to become found/mask,
which allows us to change multiple flags at the same time into opposing
directions, which will be useful later on.
Also, let's change the return type to void. It's a notifier call where
callers will ignore the return value anyway as it is nothing actionable.
Should not change behaviour.
We do this checks as protection against bind mount cycles on the same
file system. However, the check wasn't really effective for that, as
it would only detect cycles A → B → A this way. By using
fs_is_mount_point() we'll also detect cycles A → A.
Also, while we are at it, make these file system boundary checks
optional. This is not used anywhere, but might be eventually...
Most importantly though add a longer blurb explanation the why.
This fixes the copy routines on overlay filesystem, which typically
returns the underlying st_dev for files, symlinks, etc.
The value of st_dev is guaranteed to be the same for directories, so
checking it on directories only fixes this code on overlay filesystem
and still keeps it from traversing mount points (which was the original
intent.)
There's a small side effect here, by which regular (non-directory) files
with bind mounts will be copied by the new logic (while they were
skipped by the previous logic.)
Tested: ./build/test-copy with an overlay on /tmp.
Fixes: #9134
This adds a function sd_bus_slot_set_destroy_callback() to set a function
which can free userdata or perform other cleanups.
sd_bus_slot_get_destory_callback() queries the callback, and is included
for completeness.
Without something like this, for floating asynchronous callbacks, which might
be called or not, depending on the sequence of events, it's hard to perform
resource cleanup. The alternative would be to always perform the cleanup from
the caller too, but that requires more coordination and keeping of some shared
state. It's nicer to keep the cleanup contained between the callback and the
function that requests the callback.
This shows a minor memleak:
==1883== 24 bytes in 1 blocks are definitely lost in loss record 1 of 1
==1883== at 0x4C2DBAB: malloc (vg_replace_malloc.c:299)
==1883== by 0x4E9D385: malloc_multiply (alloc-util.h:69)
==1883== by 0x4EA2959: bus_request_name_async_may_reload_dbus (bus-util.c:1841)
==1883== by ...
The exchange of messages is truncated at two different points: once right
after the first callback is requested, and the second time after the full
sequence has run (usually resulting in an error because of policy).
The only difference is that functions are not individually listed by name,
but that seems completely pointless, since all functions that are documented
are always exported, so the generic text tells the user all she or he needs
to know.
LOG_MESSAGE is just a wrapper, but it keeps the arguments indented together
with the format string, so put the argument inside of the macro invocation.
(No functional change.)
Also use lowercase for "trust anchor" — it should either be all capitaled or not
at all, and it's not a proper name, so let's make it all lowercase.
Also, add a newline, to make the string more readable. "%s" can expand to
something that is quite long.
There are different Cube i7 Stylus generations.
Those are identified with the printed serial code sticker on motherboard (Printed serial code on casing is not always true)
Order of Model (Old - New):
W
WA
WWA
WN(I8WN)
I8L(With W on casing)
I own a I8L generation so the hw identification for my model does not work.
# cat /sys/class/dmi/id/sys_vendor
Cube
# сat /sys/class/dmi/id/product_name
i8-L
