This add support for a write() method on sections, in addition to the
value and form level write(). write() is only called when the section is
valid and visible. In addition, write() is empty by default, so it can be
overridden more easily.

Co-Authored-By: lemoer <git@irrelefant.net>

This is a preparation to use the gluon_wired.sh proto on top of
layer 3 tunnel interfaces.

Before this commit the decision whether a vxlan layer will be
introduced between the lower interface before the interface is
added to batman was inside the proto. Now the decision is moved
to the user of the proto.

Add a package for handling upgrade-scripts speific for the WAN radio
operation.

This way, the config mode interface can be removed seperately from the
core functionality to perform tasks on system upgrade. This can be
useful when the setup-mode is removed entirely for space preservation.

Drop these unused parameters in the function description, as only the
first parameter is referenced within the function block.

Set the ifname for the WAN radio (Private WLAN) to wanX, X being the
radio index.

All other radios created by Gluon already have their ifname defined
following this pattern.

Signed-off-by: David Bauer <mail@david-bauer.net>

The rudimentary flash size determination function expects the partition
for the devices firmware to be called "linux" while it is (since quite
some time) "firmware".

Fix this error to display available flash size as well as more useful
error message in case the uploaded firmware image exceeds the flash
space.

Signed-off-by: David Bauer <mail@david-bauer.net>

With batman-adv 2020.4 and the according backports to batman-adv v2019.2
several more bugs were found and fixed regarding the batman-adv
multicast optimizations feature.

Also a "wakeup-call" feature was added to the Linux bridge IGMP/MLD
snooping code in Gluon to work around issues with Android devices.

With batman-adv now at v2019.2, multicast-to-multi-unicasts conversion
is supported, too. Which means that even if there are a few outdated nodes
these and all other recipients will be served multicast packets via unicast,
too, as long as the sum of receiving nodes does not exceed the multicast
fanout setting (default: 16). If is exceeded, then batman-adv will revert
back to broadcast flooding automatically.

Long story short, with all these extra measures in place, let's reenable
the batman-adv multicast optimizations to reduce the layer 2 overhead
and in preparation for multicast applications in the future.

The default is enabled for this feature anyway, so removing the
"batctl multicast_mode 0" overwrite is sufficient.

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

Signed-off-by: Jan-Tarek Butt <tarek@ring0.de>
Signed-off-by: David Bauer <mail@david-bauer.net>

overflow for 'DejaVu Sans'.

End the process after one result in case -l is not given
and destination address is unicast.
Reduces singleshot execution time from timeout seconds to around 150ms.

resolves #2184

No package uses l2tp_ip.

This device is a dual 5GHz device. It is recommended to manually change the
radio of the first device to the lower 5GHz channels and the second radio
to the upper 5GHz channels

Fixes warnings about implicit pointer-to-int and int-to-pointer casts.

Fixes: 59a4cd63 ("gluon-respondd: expose OWE clients in nodeinfo")

Fixes respondd on 64bit archs, as gluonutil_get_primary_domain() was
assumed to return int without the prototype.

Fixes: bcf57467 ("libgluonutil: implement gluonutil_get_primary_domain()")

This adds the OpenWrt label-mac device selection as the most preferred
fallback.

While this is only used on OpenWrt 19.07 for backports, we can also use
the label-mac device when backporting device support. This way, we have
to deal with less device-sepcific code downstream.

Signed-off-by: David Bauer <mail@david-bauer.net>

This commit introduces a simple function for writing to the syslog and
replaces the custom function used by gluon-hoodselector.

This switches the used wireless daemons for OWE / SAE to the OpenSSL
flavors. The WolfSSL implementation currently seems to be broken.

THis switch may be reverted at a later point in time when hostapd /
wpa_supplicant implementations for WolfSSL have matured.

CPU: 750 MHz QCA9563
Flash: 8 MB
RAM: 64 MB
Radio 1: Qualcomm Atheros QCA9563 (b/g/n)
Radio 2: Qualcomm Atheros QCA9887 (a/n/ac)

Specifications:
* SoC: MT7620A
* RAM: 64 MB DDR
* Flash: 8MB NOR SPI flash
* WiFi: MT7612E (5Ghz) and builtin MT7620A (2.4GHz)
* LAN: 1x100M

The -factory images can be flashed from the device's web
interface or via nmrpflash.

Both devices differ by a additional power outlet for the EX3800.
This patch has been tested on a EX3800 device.

* gluon-core: remove obsolete file 100-core-reset-sysctl

* gluon-core: remove obsolete cleanup line

* gluon-client-bridge: remove obsolete cleanup line

This renames the local_client zone to loc_client, as local_clint exceeds
the maximum zone length allowed for firewall3, which is 11 bytes.

This worked previously due to firewall3 using unsafe string operations.
Now creation of the chain fails (latest OpenWrt master).

This allows running a respondd querier and map server behind a Gluon
node.

For instance at Freifunk Lübeck we now moved the map server
behind a Gluon VM and removed batman-adv and fastd from the
map server VM to reduce the maintenance work.

Increased multicast overhead should be minimal / non existent, as it is
unlikely to accidentally have respondd queriers running behind a Gluon
node.

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

The rewrite of the feature handling introduced multiple major bugs. One
of them was caused by the way Lua's logical operators work:

An expression of the form

    _'autoupdater' and _'web-advanced'

would return 'web-advanced' rather than the boolean true when _ returned
both strings unchanged (because the features are enabled).

As entries with more than a single feature name in their expressions did
not set no_default, Gluon would then attempt to add gluon-web-advanced to
the package selection, as web-advanced is a "pure" feature.

To fix this, and get rid of the annoying nodefault, separate handling of
"pure" feature and handling of logical expressions into two separate
functions, called feature() and when(). To simplify the feature
definitions, the package list is now passed directly to these functions
rather than in a table with a single field 'packages'.

Fixes: ee5ec5af ("build: rewrite features.sh in Lua")

Signed-off-by: Jan-Tarek Butt <tarek@ring0.de>

Default to the alphabetically smallest branch if none is set in
site.conf.

Also prevent enabling the autoupdater when no branches exist.

The new options are CONFIG_GLUON_AUTOUPDATER_BRANCH and
CONFIG_GLUON_AUTOUPDATER_ENABLED and allow to control the default branch
and default enable status separately.

The `or ''` fallback in targets/generic is removed, as GLUON_ENV will
set all variables in GLUON_VARS, making previously non-existing
variables exist with an empty value.

We already have a proper message when the creation of an alias fails
because of a name conflict. Also add a message when the primary filename
of a domain config is already occupied by another domain's alias.

Also add an 'Error:' prefix to the existing message to easier to see.