Some out of tree drivers add Ethernet devices that are supposed to be managed
by other their tooling, e.g. VirtualBox or VMWare.
Rather than hardcoding their drivers (at least VirtualBox doesn't even set a
"driver" property in sysfs) or hardcoding a logic that identifies such devices
let's just add a possibility to blacklist them in udev. This makes it possible
for whoever who ships such a driver to ship rules that prevent NetworkManager
from managing the device itself.
Furthermore it makes it possible for the user with special needs leverage the
flexibility of udev rules to override the defaults. In the end the user can
decide to let NetworkManager manage default-unmanaged interfaces such as VEth
or turn on default-unmanaged for devices on a particular bus.
An udev rule for VirtualBox would look like this:
SUBSYSTEM=="net", ENV{INTERFACE}=="vboxnet[0-9]*", ENV{NM_UNMANAGED}="1"
src/nm-dispatcher.c was passing the connection's D-Bus path to the
dispatcher, which was then ignoring it. Meanwhile,
test-dispatcher-envp was passing a fake D-Bus path with the wrong name
(which didn't actually matter since
nm_dispatcher_utils_construct_envp() ignored it anyway).
Fix it so that the path gets exposed as CONNECTION_DBUS_PATH, and
adjust the tests for that.
To ensure that NetworkManager does not block needlessly for events
which have no scripts, require scripts that respond to blocking
events to opt into the action.
Add single-letter options for --version, --no-daemon, --debug, and
--pid-file (and document them, as well as the existing single-letter
option for --help).
https://bugzilla.gnome.org/show_bug.cgi?id=700550
When run with --no-daemon, NM used to duplicate all syslog output to
stderr, for ease of debugging. But this meant it had to tell systemd
to ignore stderr, so you wouldn't get duplicated log entries. But that
meant we lost error messages that didn't go through nm_log. (eg,
g_warning()s and g_return_if_fail()s).
Fix this by making --no-daemon no longer duplicate syslog output to
stderr, and removing the "StandardError=null" from the systemd service
file. To get the old behavior, you can use --debug instead of
--no-daemon.
https://bugzilla.gnome.org/show_bug.cgi?id=700550
DocBook is not my favorite thing in the world, but it's
<lots-of-emphasis>far</lots-of-emphasis> saner than troff. Some style
parts cribbed from systemd.
This is preparatory work for actually improving the content of the
man pages.
