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We already have a state RUNNING and EXITING when we dispatch regular and
exit callbacks. Let's introduce a new state called PREPARING that is
active while we invoke preparation callbacks. This way we have a state
each for all three kinds of event handlers.
The states are currently not documented, hence let's add a new state to
the end, before we start documenting this.
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Let's make _ref() calls happy when NULL is passed to them, and simply
return NULL without any assertion logic. This makes them nicely
symmetric to the _unref() calls which also are happy to take NULL and
become NOPs then.
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tree-wide: sort includes in *.h
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nd-ndisc: don't fail if src address is unset
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This happens when running our test-suite over a socketpair,
so don't fall over in that case.
Fixes issue #1952.
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Commit 933f9caee changed the returned result of siphash24_finalize() from
little-endian to native. Follow suit in test-siphash24 and drop the endianess
conversion there as well, so that this succeeds on big-endian machines again.
Fixes #1946.
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libsystemd-network: add support for "Client FQDN" DHCP option (v2)
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add RandomSec= setting to timer units, and more
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This reverts commit 23f186494cf041107896fc4bd7fc5b8f921fd79f.
The bug has now been fixed, so we can go back to managing this ourselves.
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See https://tools.ietf.org/html/rfc4861#section-4.2. Some routers (dnsmasq) will send packets
from global addresses, which would break the default route setup, so ignore those.
This is also what the kernel does.
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This is a continuation of the previous include sort patch, which
only sorted for .c files.
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Previously, we'd always generate a packet on the wire, even for names
that are within our local zone. Shortcut this, and always check the
local zone first. This should minimize generated traffic and improve
security.
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Instead of taking a DnsQuestion object (i.e. an array of keys) only take
a single key. This simplifies things a bit, and as DNS/LLMNR require a
single question per query message was unnecessary anyway.
This mimics a similar change that was done a while ago for the dns cache
logic.
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This allows configuration of a random time on top of the elapse events,
in order to spread time events in a network evenly across a range.
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Without this commit, we risk not picking up DNS addresses
as soon as they are available.
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There is still a bug in the userspace version, so temporarily revert this.
This is a work-around for issue #1866.
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Calendarspec sub second v3
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socket: Add support for socket protcol
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Now we don't support the socket protocol like
sctp and udplite .
This patch add a new config param
SocketProtocol: udplite/sctp
With this now we can configure the protocol as
udplite = IPPROTO_UDPLITE
sctp = IPPROTO_SCTP
Tested with nspawn:
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Previously, after a timer unit elapsed we'd leave it around for good,
which has the nice benefit that starting a timer that shall trigger at a
specific point in time multiple times will only result in one trigger
instead of possibly many. With this change a new option
RemainAfterElapse= is added. It defaults to "true", to mimic the old
behaviour. If set to "false" timer units will be unloaded after they
elapsed. This is specifically useful for transient timer units.
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We only reorder a few things and modernize some constructs. No
functional changes.
- Move some if checks from the caller to the callee of a few functions.
- Use IN_SE() where we can
- Move status printing functions together
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ID, fallback to random
Previously we used the process ID to generate transient unit names.
However, that is problematic as PIDs get reused easily, and applying
them to remote systems makes little sense.
Fortunately, each bus peer gets a unique, non-reusable ID assigned when
attaching to a bus, hence let's use that, if we can. In some cases we
cannot however, because we connect directly to PID's private socket, and
thus are not a proper bus peer with a unique ID. In that case generate a
random UUID to name the unit after.
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Let's reset more stuff that does not apply to transient units. Also,
let's readd the unito to all queues, because it's identity now changed.
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manager_load_unit() will dispatch the load queue anyway, but let's make
sure we also dispatch it immediately, after truning a unit into a
transient one and loading the properties from the message. That way the
know about the validity of the unit before we begin processing the next
auxiliary unit.
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Lets introduce unit_is_pristine() that verifies whether a unit is
suitable to become a transient unit, by checking that it is no
referenced yet and has no data on disk assigned.
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Let's move the validation checks into the loop that sets up the main and
auxiliary transient units, so that we can generate pretty error messages
for all units a transient unit transaction generates, not just for the
main unit.
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networkd fixes
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Don't block indefinitely, when control has been passed on from NDisc to DHCPv6.
In this case there is likely no IPv6 support on the local link, so otherwise
this would block indefinitely.
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This adds support for the Client Fully Qualified Domain Name (FQDN)
option [RFC 4702] to libsystemd-network. The option can be used to
exchange information about a DHCPv4 client's fully qualified domain
name and about responsibility for updating the DNS RR related to the
client's address assignment.
Other popular DHCP clients (dhclient, dhcpcd) support this option and
it would be useful to have it in networkd too.
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The function converts a domain name string to the wire format
described in RFC 1035 Section 3.1.
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This ensures that several DHCPv6 clients can run on separate interfaces
simultaneously.
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Fixes CID#1338680. Thanks to Thomas Andersen.
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We need to enable SO_REUSEADDR in order for several sockets to be allowed
to bind to the same port (even on different links).
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The ndisc client may trigger the dhcpv6 client to be started (this is the common case),
so we should allocate the dhcpv6 client whenever we allocate the ndisc one.
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Move daemon-reload from package %post scripts to file triggers
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tree-wide: group include of libudev.h with sd-*
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journalctl: don't print -- No entries -- in quiet mode
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Only cosmetics really, doesn't change any actual logic.
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