Fixes #698

Avoid commiting configs inbetween to decrease number of flash writes.

Fixes #714.

It doesn't seem like this mistake had any effect.

This include wasn't actually missing, but well hidden behind the iwinfo.h
include. Make this more obvious.

Adopt the according modifications to the default firewall settings of
the WAN interface from OpenWRT, revision 45613.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>

An IGMP/MLD domain split will prevent us from being able to track
multicast listeners on other nodes.

Therefore we need to always hand any multicast packets we received from
local clients to batman-adv. With bridge multicast snooping disabled,
the current setting in Gluon, this is already the case.

However, in preparation to enabling multicast snooping, we need to
enforce forwarding towards batman-adv by setting the bridge port
option "multicast_router" to 2.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>

It is not supported by all browsers yet.

Also change load display always to display 2 decimal digits (as it is read
from the kernel with 2 decimal digits).

Fixes #606

notUpdated is a Set, to a for-in loop doesn't work.

Fixes #657

Make bandwidth limits unsigned; trim numbers, the validator accepts
trailing whitespace.

Mobile browsers will often show or hide the address bar while scrolling.
This causes resize events which would often reset the signal graphs.

Fixes #662

Ethernet links provide transitive connectivity in all but very unusual
setup, enable mesh_no_rebroadcast to reduce load for devices on links with
many nodes.

Fixes #652

This new feature introduces the new uci section 'gluon-core.wireless' with a preserve_channels option:
 * preserve_channels (boolean)

By setting this option to 1 (true) wifi channels will be preserved during upgrades.

Should be redundant after 0bd0df6f

Fixes #558

Restrict to link-local addresses to prevent amplification attacks from
outside the mesh, or such attacks affecting the outside world.

Fixes #637

If the query was via multicast, the response isn't matched by
--state ESTABLISHED,RELATED

This fixes #619

Instead of starting gluon-respondd from a hotplug handler, add a proper
init script. The new init script has a restart_if_running argument which
is now used by the hotplug handler.

gluon-announced and gluon-announce are merged to gluon-respondd.

introduce function to recurse down to the lowest layer-2 interface
corresponding to a given interface.
also re-introduce some of the previously removed input validation plus
some more to protect against glob and path based exploits.

Fixes #614

This will allow us to use its content from other languages than Lua as
well.

The timeout was calculated incorrectly (in each iteration the span between
the start time and the current time was substracted from the timeout
again), and would often become negative, causing warnings in the kernel
log.

sse-multiplex likes to get the header as fast as possible.

The statistics data is now cached for 5s, no need to send an event every
second. The new interval is 3s, which is coprime with the cache timeout.

Allows simple handling of cached events.

On the status page statistics section counters for transmitted and received traffic were mixed up. Transmitted traffic was shown as received while received traffic was shown as being transmitted.

Fixes #586