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Now, that the memfd stuff is not exported anymore, we can simplify a few
things:
Use assert() instead of assert_return(), since this is used internally
only, and we should be less permissive then.
No need to pass an allocated fd back by call-by-reference, we can just
directly return it.
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This reverts commit cf8bd44339b00330fdbc91041d6731ba8aba9fec.
Needs more discussion on the mailing list.
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UIDs/GIDs from
This way we can guarantee a limited amount of compatibility with
login.defs, by generate an appopriate "r" line out of it, on package
installation.
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operstate
https://bugs.freedesktop.org/show_bug.cgi?id=81287
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This makes possible to spawn service instances triggered by socket with
MLS/MCS SELinux labels which are created based on information provided by
connected peer.
Implementation of label_get_child_label derived from xinetd.
Reviewed-by: Paul Moore <pmoore@redhat.com>
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As the comment says, the passed in callback must always be invoked, or the underlying link
will hang. This was missed when reworking the code, so add it back in.
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We are only guaranteed to stay in ENSLAVING state whilst enslaving by bridges/bonds, not
when adding stacked devices (as then the underlying device can be IFF_UP'ed and configured
in parallel), so drop these asserts.
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Elements must be removed from the hashtable before they are freed.
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in via stdin
This allows encoding users to create directly in %pre, which is
necessary so that files owned by the RPM can be assigned to the right
users/groups.
This new macro does create a redundancy, as user definitions for all
users that shall own files need to to be listed twice, once with this
new macro, and then secondly, in the sysusers file shipped with the
package. But there's little way around that, as the users of this type
need to exist before we install the first file, but we actually want to
ship the user information in a file.
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users
This should resolve problems with tools like "grpck" and suchlike.
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Mapping files as MAP_SHARED is handled by the kernel as 'writable'
mapping. Always! Even with PROT_READ. Reason for that is,
mprotect(PROT_WRITE) could change the mapping underneath and currently
there is no kernel infrastructure to add protection there. This might
change in the future, but until then, map sealed files as MAP_PRIVATE so
we don't get EPERM.
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writable
https://bugs.freedesktop.org/show_bug.cgi?id=81169
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Start jobs for Type=oneshot units are successful when the unit state
transition activating → inactive took place. In such a case all units
that BindsTo= on it previously would continue to run, even though the unit
they dependet on was actually already gone.
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On systems without properly setup systemd, cg_get_root_path returns
-ENOENT. This means that busctl doesn't display much information.
busctl monitor also fails whenever it intercepts messages.
This fix fakes creates a fake "/" root cgroup which lets busctl work
on such systems.
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https://bugs.freedesktop.org/show_bug.cgi?id=82721
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add tests for:
- timezone_is_valid
- get_timezones
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add tests for:
- is_symlink
- pid_is_unwaited
- pid_is_alive
- search_and_fopen
- search_and_fopen_nulstr
- glob_exists
- execute_directory
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add tests for:
- write_string_stream
- write_string_file
- sendfile_full
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add tests for:
- socket_address_is
- socket_address_is_netlink
- sockaddr_equal
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This avoids errors like this, when the paths are already there with the
correct permissions and owner:
chmod(/var/spool) failed: Read-only file system
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The interface for creating tuntap devices should be ported to rtnl so it would support the same settings
as other kinds. In the meantime, the best one can do is to drop in a .link file to set the desired options.
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DBus methods that retrieve information can be called by anyone.
DBus methods that modify state of units are verified via polkit
action: org.freedesktop.systemd1.manage-units
DBus methods that modify state of unit files are verified via polkit
action: org.freedesktop.systemd1.manage-unit-files
DBus methods that reload the entire daemon state are verified via polkit
action: org.freedesktop.systemd1.reload-daemon
DBus methods that modify job state are callable from the clients
that started the job.
root (ie: CAP_SYS_ADMIN) can continue to perform all calls, property
access etc. There are several DBus methods that can only be
called by root.
Open up the dbus1 policy for the above methods.
(Heavily modified by Lennart, making use of the new
bus_verify_polkit_async() version that doesn't force us to always
pass the original callback around. Also, interactive auhentication must
be opt-in, not unconditional, hence I turned this off.)
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First, let's drop the "bus" argument, we can determine it from the
message anyway.
Secondly, determine the right callback/userdata pair automatically from
what is currently is being dispatched. This should simplify things a lot
for us, since it makes it unnecessary to pass pointers through the
original handlers through all functions when we process messages, which
might require authentication.
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Remove the sd_ prefix from internal functions and get rid of the sd_memfd
type. As a memfd is now just a native file descriptor, we can get rid of our
own wrapper type, and also use close() and dup() on them directly.
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We now have a sd_memfd_freep helper, use it if applicable.
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We need to map sealed files as MAP_PRIVATE so far as the kernel treats
MAP_SHARED as writable mapping (you can run mprotect(PROT_WRITE) at any
time on those). However, unsealed files must be mapped as MAP_SHARED.
Otherwise, we never end up writing to the real file.
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We use memfds for sealing. Lets not bother with memfds created without
MFD_ALLOW_SEALING for now. They're equivalent to random shmem files, so
don't bother treating them as sealable memfds.
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No reason to open /dev/kdbus/control if we want memfds. memfd_create() is
always available.
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Fix the memfd.h header to use handy features like #pragma, cleanup-funcs
and util.h. Also drop the EXTERN-C macros.
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Unlike earlier versions, the syscall only takes 2 arguments in its
final version, not 3.
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Don't expose generic kernel API via libsystemd, but keep the code internal
for our own usage.
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Unlikely to happen but still...
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This is a generalization of the vtable privilege check we already have,
but exported, and hence useful when preparing for a polkit change.
This will deal with the complexity that on dbus1 one cannot trust the
capability field we retrieve via the bus, since it is read via
/proc/$$/stat (and thus might be out-of-date) rather than directly from
the message (like on kdbus) or bus connection (as for uid creds on
dbus1).
Also, port over all code to this new API.
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