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We want to discover information about the server and use that in when crafting
packets to be resent.
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We want to reference the servers from their active transactions, so make sure
they stay around as long as the transaction does.
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Currently we only make sure our links can handle the size of the payload witohut
taking the headers into account.
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Make all LLMNR related packet inspections conditional to p->protocol.
Use switch-case statements while at it, which will make future additions
more readable.
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The C and T bits in the DNS packet header definitions are specific to LLMNR.
In regular DNS, they are called AA and RD instead. Reflect that by calling
the macros accordingly, and alias LLMNR specific macros.
While at it, define RA, AD and CD getters as well.
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De-duplicate some magic numbers.
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This adds support for option 43 (Vendor Specific Information) to
libsystemd-network DHCP code. The option carries an opaque object of n
octets, interpreted by vendor-specific code on the clients and
servers.
[@zonque: adopted to new unhexmem() API]
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This implements RFC4648 for a slightly more compact representation of
binary data compared to hex (6 bits per character rather than 4).
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We were ignoring failures from unhexchar, which meant that invalid
hex characters were being turned into garbage rather than the string
rejected.
Fix this by making unhexmem return an error code, also change the API
slightly, to return the size of the returned memory, reflecting the
fact that the memory is a binary blob,and not a string.
For convenience, still append a trailing NULL byte to the returned
memory (not included in the returned size), allowing callers to
treat it as a string without doing a second copy.
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logind: bring bus policy up-to-date
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We shouldn't fall over that, and just assume it is 0 in this case.
Fixes #499.
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A while back we opened up all of logind's bus calls to unprivileged
users, via PK. However, the dbus1 policy wasn't updated accordingly.
With this change, the dbus1 policy is opened up for all bus calls that
should be available to unprivileged clients.
(also rearranges some calls in the vtable, to make more sense, and be in
line with the order in the bus policy file)
Fixes #471.
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util: make sure we don't clobber errno in error path
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basic: simplify path_is_mount_point() a bit
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This removes two uses of the ternary operator.
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core: include unit in path state transition debug logging.
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Spell out the proper name. Use 'pos' over 'position', and also update the
logind state file to do the same. Note that this breaks live updates.
However, we only save 'POSITION' on non-seat0, so this shouldn't bother
anyone for real. If you run multi-seat setups, you better restart a
machine on updates, anyway.
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Make sure a greeter can forcefully spawn a session on a VT that is
in-use. A recent patch prevented this (this used to be possible for all
session types) as it is highly fragile. However, as it turns out,
greeters seem to rely on that feature. Therefore, make sure we allow it
explicitly for greeters.
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boot: use BUILD_ID if VERSION_ID is not available
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sd-bus: include queried path in GetManagedObjects
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sd-bus: sd_bus_slot_get_description() should return const strings
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If GetManagedObjects is called on /foo/bar, then it should also include
the object /foo/bar, if it exists. Right now, we only include objects
underneath /foo/bar/.
This follows the behavior of existing dbus implementations.
Obsoletes #527 and fixes #525. Reported by: Nathaniel McCallum
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According to os-release(5), VERSION_ID is not mandatory and BUILD_ID only
needs to be unique underneath VERSION_ID. Therefore, assuming a missing
VERSION_ID field means 'empty', we can rely on BUILD_ID to be unique.
Use BUILD_ID if VERSION_ID is not present. This way, rolling-release
distros can still provide a proper os-release entry without crafting
random VERSION_ID strings.
This fixes #186.
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There is no guarantee that the os-release section contains each key only
once, nor any guarantee that all keys are present. Make sure we properly
free memory in both cases.
Not that it matters much, as we're short-living, anyway. But correct code
is always nicer to read..
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All other *_get_description() functions use 'const char**', so make sure
sd_bus_slot_get_description() does the same.
This changes API, but ABI stays stable. I think this is fine, but I
wouldn't mind bumping SONAME.
Reported in #528.
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"systemctl daemon-reload" should also update the manager defaults from
/etc/systemd/system.conf.
For details, see:
http://lists.freedesktop.org/archives/systemd-devel/2015-June/033062.html
Amended to use manager_set_defaults() as common function.
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property callback returns are consistent
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fileio: consolidate write_string_file*()
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resolved: fix marshalling of RRSIG records
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journal-gatewayd: fix tmpfile logic
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Remove python-systemd
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It is no different to return 0 over 1 in the property
callback. It is confusing to return 1 which made me think
1 has a special purpose. This way code is consistent with
the rest of the tree.
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The key tag is 16, not 8 bits.
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"rw" is not a valid mode string for f*open(). This got broken in
cc02a7b33049 ("journal-gatewayd: factor out opening of temp
file").
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Right now, if you're already in a session and call CreateSession, we
return information about the current session of yours. This is highy
confusing and a nasty hack. Avoid that, and instead return a commonly
known error, so the caller can detect that.
This has the side-effect, that we no longer override XDG_VTNR and XDG_SEAT
in pam_systemd, if you're already in a session. But this sounds like the
right thing to do, anyway.
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Old gdm and lightdm start the user-session during login before they
destroy the greeter-session. Therefore, the user-session will take over
the VT from the greeter. We recently prevented this by never allowing
multiple sessions on the same VT. Fix this now, by explicitly allowing
this if the owning session is a GREETER.
Note that gdm no longer behaves like this. Instead, due to wayland, they
always use a different VT for each session. All other login-managers are
highly encouraged to destroy the greeter-session _before_ starting the
user-session. We now work around this, but this will probably not last
forever (and will already have nasty side-effects on the greeter-session).
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Login small cleanup
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python-system has moved to it's own repository:
https://github.com/systemd/python-systemd
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! is supposed to be used for booleans and pointers.
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The latest consolidation cleanup of write_string_file() revealed some users
of that helper which should have used write_string_file_no_create() in the
past but didn't. Basically, all existing users that write to files in /sys
and /proc should not expect to write to a file which is not yet existant.
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Merge write_string_file(), write_string_file_no_create() and
write_string_file_atomic() into write_string_file() and provide a flags mask
that allows combinations of atomic writing, newline appending and automatic
file creation. Change all users accordingly.
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Add a flag to control whether write_string_stream() should always enforce a
trailing newline character in the file.
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