When modifying an existing ifcfg-rh file, we always want to enforce
the absense of a certain setting. That is done, by calling svSetValue()
with a value of NULL.
Same for writing MTU value.
The Network_ID for generating RFC 7217 stable privacy IPv6 addresses
is by default the UUID of the connection.
Alternatively, prefer "connection.stable-id" as Network_ID to generate
the stable addresses. This allows to configure a set of connections that
all use the same Network_ID for generating stable addresses.
Note that the stable-id and the UUID do no overlap, that is two
connections
[connection]
uuid=uuid1
stable-id=
and
[connection]
uuid=uuid2
stable-id=uuid1
generate distinct addresses.
This new property be used as token to generate stable-ids instead
of the connection's UUID.
Later, this will be used by ipv6.addr-gen-mode=stable-privacy,
ethernet.cloned-mac-address=stable, and wifi.cloned-mac-address=stable
setting. Those generate stable addresses based on the connection's
UUID, but allow to use the stable-id instead.
This allows multiple connections to generate the same addresses
-- on the same machine, because in the above cases a machine
dependant key is also hashed.
NetworkManager.conf already contains several per-device settings,
that is, settings that have a device-spec as argument.
main.ignore-carrier
main.no-auto-default
main.assume-ipv6ll-only
keyfile.unmanged-devices
Optimally, these settings should be moved to the new [device*]
section.
For now, only move main.ignore-carrier there. For the others
it may not make sense to do so:
- main.no-auto-default: is already merged with internal state
from /var/lib/NetworkManager/no-auto-default.state. While
NMConfig's write API would be fine to also persist and merge
the no-auto-default setting, we'd still have to read the old
file too. Thus, deprecating this setting gets quite cumbersome
to still handle the old state file.
Also, it seems a less useful setting to configure in the
global configuration aside setting main.no-auto-default=*.
- main.assume-ipv6ll-only: one day, I hope that we no longer
assume connections at all, and this setting becomes entirely
obsolete.
- keyfile.unmanged-devices: this sets NM_UNMANAGED_USER_SETTINGS,
which cannot be overruled via D-Bus. For a future device.managed
setting we want it it to be overwritable via D-Bus by an explicit
user action. Thus, a device.managed property should have a different
semantic, this should be more like a device.unmanaged-force setting,
which could be done.
Add a new [device*] section to NetworkManager.conf. This works similar
like the default connection settings in [connection*].
This will allow us to express per-device configuration in NetworkManager.conf
in our familar style.
Later, via NMConfig's write API it will be possible to make settings
accessible via D-Bus and persist them in NetworkManager-intern.conf.
This way, the user can both edit configuration snippets and modify
them via D-Bus, and also support installing default configuration
from the package.
In a way, a [device*] setting is similar to networkd's link files.
The match options is all encoded in the match-device specs.
One difference is, that the resulting setting can be merged together
by multiple section by partially overwriting them. This makes it
more flexible and allows for example to drop a configuration snippet
that only sets one property, while the rest can be merged from different
snippets.
Avoids the following error when ofono isn't running:
NetworkManager[25133]: <info> [1466186144.1392] ofono is now available
NetworkManager[25133]: <warn> [1466186144.1637] failed to enumerate oFono devices: Cannot invoke method; proxy is for a well-known name without an owner and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag
because the code assumes that if the GDBusProxy is created, that
oFono is available. That's not the case with DO_NOT_AUTO_START
because it creates the proxy anyway, and lets the caller listen
for name-owner-changed signals instead. The GDBusProxy also
doesn't need to be cleared, since it will follow name-owner
changes and emit g-name-owner changes when oFono starts/stops.
This also fixes the oFono name-owner-changed watch. It was presumably
using the signal name copied from the ModemManager 'notify::name-owner'
code, but that's a GDBusObjectManagerClient. The oFono code is using
a GDBusProxy for which the signal is 'notify::g-name-owner'.
Finally, the oFono code shouldn't really be piggy-backing on the
ModemManager autolaunch code, it's just cleaner to keep the two
code paths separate and initialize oFono in parallel.
NM_MODEM_UID is used as the modem device name, and the device name
cannot contain path-like characters.
Ofono has a bluez plugin that detects paired DUN/PAN capable
Bluetooth devices, and these devices are created with a multi-component
object path like "/hfp/org/bluez/hci0/dev_00_26_E2_AB_68_66".
The NM ofono plugin cannot use these paths as NM device names.
Instead, strip off any path components and use the last part
of the object path as the NM device name.
Previously we created a new NMIP[46]Config object to replace the
previous one every time the plugin reported a new IP configuration
through the Ip[46]Config signal, but the old configuration was not
removed from the DNS manager and would become stale.
The interaction with DNS manager is handled by NMPolicy, which only
reacts to changes in connection status, so it's not easy to have the
configuration removed from DNS while keeping the connection state
ACTIVATED.
A cleaner solutions is to avoid creating a new IP configuration object
and reuse the existing one if possible. The side effect is that the
D-Bus path of the object will not change, which seems also positive.
https://bugzilla.redhat.com/show_bug.cgi?id=1348901
If the plugin sends a new configuration when the connection is already
activated the state should not go back to PRE_UP since this causes
dispatcher scripts to run again.
Software devices must report the NM_DEVICE_CAP_IS_SOFTWARE capability
in order to be properly activated. Add the flag to NMDeviceTun and
NMDeviceVxlan.
https://bugzilla.gnome.org/show_bug.cgi?id=767846
It's possible for wpa_supplicant to transition to INACTIVE
state with an outstanding requested_scan pending. This can
lead to a stall condition where scanning no longer occurs.
[thaller@redhat.com: added break statement to avoid fall-through]
https://mail.gnome.org/archives/networkmanager-list/2016-June/msg00116.html
nl_recv() in libnl3 before version 3.2.15 would return dangling pointers
if nl_recv() fails or has nothing to read [1].
Workaround that by explicitly clearing @buf and @creds.
https://bugzilla.gnome.org/show_bug.cgi?id=767986
[1] 69468517d0
