Add a "monitor-connection-files" config option, which can be set to
"false" to disable automatic reloading of connections on file change.
To go with this, add a new ReloadConnections method on
o.fd.NM.Settings that can be used to manually reload connections, and
add an nm-cli command to call it.
We don't always want to immediately write new connections to disk, to
facilitate "runtime" or "temporary" connections where an interface's
runtime config isn't backed by on-disk config. Also, just because
an interface's configuration is changed doesn't necessarily mean
that new configuration should be written to disk either.
Add D-Bus methods for adding new connections and for updating existing
connections that don't immediately save the connection to disk.
Also add infrastructure to indicate to plugins that the new connection
shouldn't be immediately saved if the connection was added with the
new method.
We'll need this for later with unsaved connections. The ifnet
plugin previously tracked connections by the "conn_name" which
was derived from keys in the /etc/conf.d/net file. These keys
take two forms:
1) interface name
config_eth0=(
"192.168.4.121/24"
"dhcp6"
)
2) wifi SSID, either text or hex-encoded:
config_myssid=("dhcp")
config_0xab3ace=("dhcp")
The conf.d net connection name is apparently usually an interface
name, so when writing to /etc/conf.d/net the NM connection name is
changed from eg "Ethernet connection 1" to the next available
interface name based on the type of connection, eg "eth0".
The ifnet plugin actively removed connections that were not present
in /etc/conf.d/net during the reload_connections() call, but in the
future we'll want to allow unsaved connections which in the case of
ifnet clearly won't yet be written to the file. Since only
connections written to the file have a "conn_name", tracking
connections by conn_name no longer works.
Add some new API to NMConfig so that NMSettings and its plugins can
use NMConfig to look up values rather than reparsing the config file
themselves.
Also, move the no-auto-default cache from NetworkManager.conf to
$NMSTATEDIR/no-auto-default.state, so NM isn't rewriting its own
config file at runtime.
GObject creation cannot normally fail, except for types that implement
GInitable and take a GError in their _new() method. Some NM types
override constructor() and return NULL in some cases, but these
generally only happen in the case of programmer error (eg, failing to
set a mandatory property), and so crashing is reasonable (and most
likely inevitable anyway).
So, remove all NULL checks after calls to g_object_new() and its
myriad wrappers.
https://bugzilla.gnome.org/show_bug.cgi?id=693678
Can't leave the backup files lying around when doing 'make distcheck',
so when backup up a file, return the backup file path so that the
caller can (optionally) remove it.
Ifnet currently does not deal with user agent service. Any connection
that comes with flagged secrets or is not system connection will be
ignored by the plugin. Thanks to David Narvaez for his great help on
this problem.
When a connection changes on-disk, the in-memory copy of it may contain
transient secrets (agent-owned or not saved) that dont' get written out
to disk. When comparing the on-disk copy to the in-memory copy make sure
transient secrets are ignored so that we don't re-read the on-disk copy
needlessly.
