Now a bit more verbose when useful.

Errata to f5065. $Key has a capital.

Some abuse of the stack, but that should be no problem: the user has to
enter around 10000 existing profile names which (s)he does not want to
overwrite before a stack overflow occurs.

Feature suggested by: Paul Bienkowski <opatutlol@aol.com>

- Refactorization of option file generation
- Introduction of optional additional pppd options file specification
- Introduction of unit specification option for pppoe connections

Also: tag error messages as systemd error messages when the messages are
not directed to the terminal.

Netctl files can potentially contain passwords or execute code as root.

Testing whether transmission is blocked at all is now possible through

    [[ -n $(rf_status "$Interface" "$RFKill") ]]

This is especially useful to enforce connecting in the 5 GHz band.

New timeout is 30 seconds, which equals the current dhcpcd default.

Hex WEP keys are of even length, ASCII keys are of odd length.
Using this information we make wifi-menu work better for WEP networks.

Needed in case the remote side of a tunnel is set to 'any'.

Add missing "$" in variable call.

The hooks (including any interface hook)  are loaded each time a wpa
event occurs. This means the auto.action script can be extended in the
hooks. For this purpose, several exported variables (mainly $ACTION)
can be checked for their value. The name of the active profile is not
exported, but still available (just as in ordinary netctl usage) through
the $Profile variable.

Profiles ending in .action are disallowed (reserved for possible future
use). Both ifplugd and wpa_actiond have a notion of 'action script'.

This sheds the dependency on the old bridge-utils (brctl).

This adds a command line interface to the netctl-auto script to
allow users more control over the automatic profile selection.

This function can be used to unquote WPA supplicant config file strings
returned from wpa_cli calls.

Instead of filtering results from grep, we can also just use sed.
Installations having grep can be expected to have sed as well.

Florian Pritz authored Jul 16, 2013 and Jouke Witteveen committed Jul 16, 2013

systemd is required at runtime and we also need it at build time.
New chroots created by Arch's devtools no longer include all base
packages and systemd won't be installed unless we depend on it.

Without systemd the makefile won't find the unit dir and will install
the service files into /.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

Regardless of the DHCP client, leases are not released by default.

This introduces a new configuration parameter: DHCPReleaseOnStop, which
can be used to change the default behavior.

This adds to 032df. Custom and automatically (in case of IPv6) added
routes are now deleted when the interface is brought down.

Redirect syntax and a modeline.

The declare builtin defaults to making variables local.

Previous attempts:
711c4645
e8210827

- Add static routes prior to setting the default IP4 gateway
  (github/pull/43)
- Set sysctl property net.ipv6.conf.<interface>.accept_ra earlier
  (FS#35788)

Profiles now have access to it.

Ivan Shapovalov authored May 17, 2013 and Jouke Witteveen committed May 17, 2013

Substituting "/dev/null/nonexistent" for an empty $Connection,
of course, does generally work, but is somewhat ugly (esp. in that
the string is appended to $CONN_DIR, so the resulting path may
theoretically exist).

Instead, substitute an empty string for the complete path if $Connection
is empty: an empty string can never be readable.

Signed-off-by: Ivan Shapovalov <intelfx100@gmail.com>

By default, dhcpcd requests leases for both versions of IPv6.
In the past, dhcpcd did not support IPv6, so this commits restores old
behavior.

Thomas Bächler authored May 16, 2013 and Jouke Witteveen committed May 17, 2013

When switching networks in auto.action, the addresses are not flushed. This
is especially problematic with stateless ipv6 autoconfigutation, as invalid
IPs may stay around until their (potentially very long) lifetime has expired.

bring_interface_down is always called after ip_unset everywhere else, so
this change does not affect anything else.

V2: Make sure not to flush the link local address.