nm_setting_ip_config_next_valid_dns_option() API was added in libnm 1.2, but
it was never exported in the ABI of libnm. It thus was unusable, and any user
trying to link against it would have been unable to do so.
Hide the API now entirely. It doesn't seem a very nice API. If we want to
allow the user to validate option names, we should expose such a function
to validate an option (not to fetch the next valid option from a
profile).
Fixes: 019943bb5d ('libnm-core: add dns-options property to NMSettingIPConfig')
nm_utils_hexstr2bin_full() is our general hexstr to binary parsing
method. It uses (either mandatory or optional) delimiters. Before,
if delimiters are in use, it would accept individual hexdigits.
E.g. "a:b" would be accepted as "0a:0b:.
Add an argument that prevents accepting such single digits.
All our devices will return the same value on D-Bus: a "u" variant with zero value.
Since NMDBusObject caches all the property values, we can share the instance.
We anyway cache our variants for the properties of NMDBusObject instances.
If such a variant is well known to be always the same, there is no need
to allocate a new instance every time. In particular, because GVariant
is an immutable and ref counted type.
Add a singleton getter for a "u" variant with numeric value 0.
The "Ip4Address" property of "org.freedesktop.NetworkManager.Device"
interface is deprecated since version 0.9.9.1 (2013). Also, the property
is not exposed by libnm and generally not useful.
Drop the code to maintain it. The property still exists but always
returns 0 (0.0.0.0).
NML3ConfigData is a simple container structure that contains no logic.
Also, DHCP code already is intimately related to NMIP[46]Config (for
now, later that will be NML3ConfigData).
It makes sense that NMNDisc is aware of NML3ConfigData and knows how to
conver the RA data into an l3cd instance.
NMDevice currently configures use_tempaddr sysctl itself. Later,
NML3Cfg should do that, so we need to keep track of that as part
of the configuration.
It is bad style to rely on the last unref of an object for stopping
the operation. With a ref-counted object you should never rely on
anybody else still having (or not having) a reference. Hence, you
should not rely on stopping the ND during the last unref.
Add an explicit nm_ndisc_stop() function.
Previously, if we passed ra_timeout 0 to NMNDisc, then it would
calculate the effective timeout based on the router-solicitations
and the router-solicitation-interval.
The caller may want to know the used timeout, to also run its own timers
with the same timeout. Hence, it cannot leave this automatism internal
to NMNDisc.
nm_utils_inet4_ntop() is public API of libnm. Also, it accepts a
%NULL buffer to use a static buffer. That is error prone and we
should not use such convenience behavior for our own code.
Note that when NetworkManager tries to allocate more than 256 networks,
then previously the allocation would fail. We no longer fail, but log an
error and reuse the last address (10.42.255.1/24).
It's simpler to have code that cannot fail, because it's often hard to
handle failure properly. Also, if the user would configure two shared
profiles that explicitly use the same subnet, we also wouldn't fail. Why
not? Is that not a problem as well? If it is not, there is no need to
fail in this case. If it is a problem, then it would be much more
important to handle this case otherwise -- since it's more likely to
activate two profiles that accidentally use the same subnet than
activating 257+ shared profiles.
Add a better way of tracking the shared IP addresses that are in use.
This will replace NMDevice's usage of a global hash table. For one, the
API is more formalized with reserve() and release() functions.
Also, it ties the used IP addresses to the netns, which would be more
correct (in the future when we may support more netns).
It is solely computed from the lease information (the GHashTable).
No need to pass it along as separate argument in NM_DHCP_CLIENT_SIGNAL_STATE_CHANGED,
especially since it only applies to IPv6.
It's important to find place in code where are field (state) gets
mutated. Make sys_iface_state field const, but add a mutable alias
via a union. You can now grep for places that change the field.
This way we can safely iterate over a %NULL instance with
nm_l3_config_data_iter_obj_for_each(). This avoids a NULL check,
which in this case seems more annoying than helpful.
This is the best default route that we commited the last time (if any).
It may not reflect what is currently configured (in NMPlatform) and it
may not reflect the latest changes since nm_l3cfg_add_config().
NML3Cfg already keeps track of the current NMPlatformLink object.
Allow accessing it directly from an NML3Cfg instance, which saves
a cache lookup from NMPlatform.
