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The DHCP variable in the [Network] section of the network configuration
file moves the link to the configured state according to the following:
DHCP=yes Link is configured when either DHCPv4 or DHCPv6 succeed
DHCP=ipv4 Link is configured only when DHCPv4 succeeds
DHCP=ipv6 Link is configured only when DHCPv6 succeeds
DHCP=no Neither DHCPv4 or DHCPv6 is attempted
Reported by Martin Pitt.
Fixes https://github.com/systemd/systemd/issues/1368
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DHCPv6 suspend fixes
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Wait until DHCPv6 has acquired an address before announcing the link
to be configured. Log the DHCPv6 lease lost event.
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Whenever a Router Advertisement is received, dhcp6_configure() will be
called. A Router Advertisment can also instruct DHCPv6 to start acquiring
IPv6 addresses in manged mode, if it previously was handling only other
information. As an Router Advertisment is also received after the DHCPv6
client has resumed from a suspend, fix the function not to assume DHCPv6
is currently running, but instead try to restart it. Handle
sd_dhcp6_start() returning -EALREADY indicating that the DHCPv6 client was
already running.
Collect all client unrefs in one place to unclutter the error handling.
Fixes https://github.com/systemd/systemd/issues/963
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This causes the kernel to accept router advertisments even if
ip forwarding is enabled for this interface.
This fixes #1340.
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A variety of mostly unrelated fixes
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Let's underline the header line of the table shown by cgtop, how it is
customary for tables. In order to do this, let's introduce new ANSI
underline macros, and clean up the existing ones as side effect.
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Currently, sd-lldp.h exports "UPDATE_INFO".. and defines it to a magic
constant '10'. This is completely bogus, so fix it to follow our coding
standards:
- Prefix exported symbols by SD_LLDP_*
- Define a separate event-enum for event types
- Translate internal state to external event-types
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Prefix all exported constants with SD_IPV4LL_* to avoid namespacing
conflicts.
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Prefix all exported constants by SD_ICMP6_ND_* to avoid any namespacing
conflicts.
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Prefix all exported constants with SD_DHCP6_CLIENT_* to avoid any
namespacing conflicts.
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Prefix all constants with SD_DHCP_CLIENT_* to avoid namespacing
conflicts.
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This splits the Address Conflict Detection out of the Link Local
library so that we can reuse it for DHCP and static addresses in
the future.
Implements RFC5227.
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Firstly, no longer distinguish between STOP and INIT states.
Secondly, do not trigger STOP events when calls to sd_ipv4ll_*() fail. The
caller is the one who would receive the event and will already know that the
call to sd_ipv4ll_*() has failed, so it is redundant.
STOP events will now only be triggered by calling sd_ipv4ll_stop() explicitly
or by some internal error in the library triggered by receiving a packet or
an expiring timeout (i.e., any error that would otherwise not be reported
back to the consumer of the library).
Lastly, follow CODING_STYLE and always return NULL on unref. Protect from
objects being destroyed in callbacks accordingly.
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This patch support to configure the ipv6 acceprt ra option.
for more information see
http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/proc-sys-net-ipv6..html
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Patch via coccinelle.
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This replaces this:
free(p);
p = NULL;
by this:
p = mfree(p);
Change generated using coccinelle. Semantic patch is added to the
sources.
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Introduce a proper enum, and don't pass around string ids anymore. This
simplifies things quite a bit, and makes virtualization detection more
similar to architecture detection.
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Commit 0339cd770 changed libsystemd-network's error code for missing DHCP lease
data from ENOENT to ENODATA. Adjust networkd accordingly.
This fixes interfaces being stuck in "degraded/configuring" mode forever.
https://github.com/systemd/systemd/issues/1147
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tree-wide: do not shadow the global var timezone
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networkd: add support for tunnel encap limit
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The constraints we place on the pool is that it is a contiguous
sequence of addresses in the same subnet as the server address, not
including the subnet nor broadcast addresses, but possibly including
the server address itself. If the server address is included in the
pool it is (obviously) reserved and not handed out to clients.
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Don't restrict yourselves to 32 leases, simply manage the whole subnet by default.
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Merge sd_dhcp_server_set_address() and sd_dhcp_server_set_lease_pool() into
sd_dhcp_server_configure_pool() as the behavior of the two former depends
on the order they are called in. The flexibility is not needed, so let's
just do this in one call.
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The Tunnel Encapsulation Limit option specifies how many additional
levels of encapsulation are permitted to be prepended to the packet
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We may not set it before checking it for null.
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Otherwise we'll try to remove an invalid fd from epoll all the time.
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If we have the data, emit it by default.
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When handing out DHCP leases, try to propagate DNS/NTP server
information from "uplink". The "uplink" is automatically determined as
the network interface with the highest priority default route on it.
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For now, this is very simple and IP addresses have to be configured
manually.
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No functional changes, just moving definitions into separate header
files.
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Let's drop some strerror() invocations, and make use of the easier to
use newer logging APIs.
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Previously we were setting the transient hostname again, rather than
resetting it.
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The library so far always requested the NTP servers. This might be
unnecessary in some uses, hence let's move the request into networkd
instead.
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When we make sd-dhcp public one day we really should not make
sd_dhcp_lease_save() and sd_dhcp_lease_load() public, since it's pretty
much only useful as internal utility for networkd itself.
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Let's try to generate log messages that resemble english language
sentences, hence uppercase the first character.
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This one is simply to add: encode the tzdata timezone in the DHCP
options and optionally make use of it.
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Also, we should only accept trailing dots where we have to, but not
everywhere, hence be more strict when validating configured hostnames.
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In our API design, getter-functions don't ref objects. Calls like
foo_get_bar() will not ref 'bar'. We never do that and there is no real
reason to do it in single threaded APIs. If you need a ref-count, you
better take it yourself *BEFORE* doing anything else on the parent object
(as this might invalidate your pointer).
Right now, sd_dhcp?_get_lease() refs the lease it returns. A lot of
code-paths in systemd do not expect this and thus leak the lease
reference. Fix this by changing the API to not ref returned objects.
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Rename the enum, the lookup functions and the parser for LLMNRSupport so
the type can be reused for mDNS.
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Append DNS and NTP data obtained via DHCPv6 when the Link is saved.
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Manual merge of https://github.com/systemd/systemd/pull/751.
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All users are now setting lowercase=false.
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Tests are modified to check behaviour with relax and without relax.
New tests are added for hostname_cleanup().
Tests are moved a new file (test-hostname-util) because there's
now a bunch of them.
New parameter is not used anywhere, except in tests, so there should
be no observable change.
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