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The DHCP library user can decide to free the DHCP client any time
the callback is called. After the callback has been called, other
computations may still be needed - the best example being a full
restart of the DHCP procedure in case of lease expiry.
Fix this by introducing proper reference counting. Properly handle
a returned NULL from the notify and stop functions if the DHCP
client was freed.
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This unifies the socket handling with other sd-* libraries.
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We still only return the first message part in callback/synchronous calls.
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This test should have been updated when changing the magic cookie handling around.
Reported by Ken MacLeod.
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change_uid_gid() never initialises sz which may cause greedy_realloc to
skip the initial buffer allocation.
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systemd-machined doesn't store cgroup path in a state file anymore.
Let's figure it out from the scope.
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Add Mir to the list of session types. This is implemented for LightDM
in lp:~robert-ancell/lightdm/xdg-session-desktop [1].
[1] https://code.launchpad.net/~robert-ancell/lightdm/xdg-session-desktop/+merge/214108
(david: adjusted commit-header and fixed whitespace issues)
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Several units now utilize the PrivateNetwork parameter, which requires
network namespace support.
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This should never be a problem, but better be safe than sorry.
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I think it is easier to grok this way.
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Improve the checksum computation by using 64 bit integers instead of the 16 bit
integers in the existing implementation. This change speeds up the computation
with approximately 78% both on 64 bit and 32 bit systems.
Please see RFC 1071 for details.
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This should significantly reduce spurious wakeups.
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Umut said: 'I have noticed a bug that we are sending PROBE/ANNOUNCE messages on
00:00:00:00:00:00 address where it should be broadcast.'
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Try a bit harder to make the kernel drop packets not for us. This should reduce
the number of wakeups from n^2 to n in the number of dhcp clients, which admittedly
only makes a differenc in very extreme cases.
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If they are too small to fit the IP+UDP+DHCP headers they can be of no use, so
don't waste resources parsing them. This is at the cost of losing some verbosity
in the logging.
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Also move the checking of it to the main message handler, rather than the
options parser.
Fix a bug, so we now drop the packet if any of the magic bytes don't match.
Before we used to only drop the packet if they were all wrong.
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Found with scan-build
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A parameter which was always null before, now get's set to
the module.
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It turns out the latter got removed in Python 3.
https://bugs.freedesktop.org/show_bug.cgi?id=77086
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Reported-by: Arnaud Gaboury <arnaud.gaboury@gmail.com>
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Return negative errno in wall_tty_block(). get_ctty_devnr() already
returns a negative errno in case of failure, no need to negate it again.
Reported-by: Simon <hwold@odai.homelinux.net>
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Previously the man page was modified, but not help().
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In "export" format, newlines are significant, and messages containing
newlines must be exported as "binary".
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On virtually any newer Asus mainboard, the eeepc-wmi driver is loaded.
It exposes a backlight device despite the lack of any physical backlight
devices. This fake backlight device has max_brightness set to 0. Since
the introduction of the clamp_brightness function, systemd-backlight
tries to write '1' to brightness and fails.
This patch changes systemd-backlight to exit gracefully when
max_brightness is 0 before performing any action. This affects
both the load and save actions.
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Now that we have a graceful handover from IPv4LL to DHCP, there is no longer any reason to leave this off by default.
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This patch fixes the broken test-cases for sd-rtnl and add support for ipip
and sit tunnel.
[tomegun: minor fixups]
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Currently when both ipv4ll and dhcp are enabled, ipv4ll
address (if one has been claimed) is removed when dhcp
address is aquired. This is not the best thing to do
since there might be clients unaware of the removal
trying to communicate.
This patch provides a smooth transition between ipv4ll
and dhcp. If ipv4ll address was claimed [1] before dhcp,
address is marked as deprecated. Deprecated address is still
a valid address and packets can be received on it but address
cannot be selected as a source address. If dhcp lease cannot
be extended, then ipv4ll address is marked as valid again.
[1] If there is no collision, claiming IPv4LL takes between 4 to
7 seconds.
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If a device is unplugged while we initialize it, we will get ENOENT for
ACL-init (and related stuff). We currently print errors then, which is
misleading. Print a debug-message early and continue.
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Filter out everything except UDP packets destined for the DHCP client port,
this should avoid the vast majority of spurious wakeups.
Filter based on [0], with permission.
Possible improvemnts: also check for the DHCP magic cookie to drop invalid
packets. Check for our xid to filter out packets destined for other clients.
[0]: <https://github.com/ambrop72/badvpn/blob/master/dhcpclient/BDHCPClient.c#L57>
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