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.

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).

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

Reorder scripts so that the mesh_lan interface is accounted for.

Two other firewall upgrade scripts (mesh-babel and l3roamd) are
reordered as well. While there seems to be no hard dependency at the
moment, it makes sense to run the basic setup first, also to avoid
problems with future changes.

Closes: #2090
Fixes: ed094bc6 ("gluon-core: firewall: Allow custom gluon_wired interfaces (#2041)")

This will hide the outdoor mode setting on compatible devices in case
the defined channels should be preserved.

Otherwise a user might be under the impression their device is compliant
with outdoor operation when in reality it still uses prohibited
channels.

(cherry picked from commit 73b830eb)

This will hide the outdoor mode setting on compatible devices in case
the defined channels should be preserved.

Otherwise a user might be under the impression their device is compliant
with outdoor operation when in reality it still uses prohibited
channels.

When gluon.core.switch_domain is set, it replaces the old domain.

This also replaces an unnecessary uci:commit() with uci:save().

On lantiq, the default WAN ifname is 'dsl0' even on devices that have a
separate WAN port. At least on devices using swconfig we can override
this with the switch port labelled as 'wan'.

Backporting the MFP patch allows us to utilize WPA3 features on this
target.

Tested on TP-Link Archer C20i

Instead of looking at the initial UCI config, we can read this
information from board.json.

Because is_disabled() was always returning true or false, the
first_non_nil() would never actually check the default setting from
site.conf. This was broken since v2017.1.

Fixes: 6cf03bab ("treewide: replace normal uses of luci.model.uci with simple-uci to reduce LuCI dependencies")
(cherry picked from commit 3c2593b6)

Because is_disabled() was always returning true or false, the
first_non_nil() would never actually check the default setting from
site.conf. This was broken since v2017.1.

Fixes: 6cf03bab ("treewide: replace normal uses of luci.model.uci with simple-uci to reduce LuCI dependencies")

Backporting the MFP patch allows us to utilize WPA3 features on this
target.

Tested on TP-Link Archer C20i

The interfaces should always exist and just be disabled when outdoor
mode is enabled. Not creating them at all leads to an issue in the
advanced wifi settings where an additional reload of the page is
necessary after enabling or disabling the ourdoor mode to make the mesh
VIF options appear or disappear.

(cherry picked from commit b15b008e)

The interfaces should always exist and just be disabled when outdoor
mode is enabled. Not creating them at all leads to an issue in the
advanced wifi settings where an additional reload of the page is
necessary after enabling or disabling the ourdoor mode to make the mesh
VIF options appear or disappear.

This allows for multiple mesh legs out of one box. Useful for offloaders
and networks using vlan for separate mesh transport.
Custom mesh interfaces in a VXLAN domain are otherwise firewalled.

This fixes #1479

This adds support for the beacon interval to be set on a per-band base.
This has the potential to reduce the amount of airtime used up for
sending beacon frames.

[Matthias Schiffer: fix up start/stop order and file permissions]

Separate wireless-related helper methods from the util module to a
new wireless module. This keeps them separated, as the amount of
wireless helpers increased in the past, justifying a separate module.

xt_CT was added to kmod-ipt-conntrack a while back. Update our
GLUON_SPECIALIZE_KERNEL rules accordingly.

When building xt_CT into the kernel, one of the symbols IP_NF_RAW and
IP6_NF_RAW must be enabled as well, even though there is no runtime
dependency when building as modules. The kernel grows by less than 1KB
even when both IP_NF_RAW and NETFILTER_XT_TARGET_CT are enabled, making
this change a (very slight) net win in both flash and RAM usage.

- Use util.find_phy()
- Stop foreach() as soon as the result is known

The netdev() lookup is confusing to use: whenever a interface does not
exist during boot (for example VLAN) or when the address is overridden
from board.json (which is not obvious at all), it will yield either no
address, or a different address than expected.

To avoid this confusion, using board.json-based interface() is
preferable. This converts all uses of netdev() to the corresponding
lan/wan lookups, except for the final fallback for eth0.

In most cases, board.json does not contain any MAC addresses; in this
case, the default MAC address of the underlying interface is to be used.

- Replace misnamed, closure-returning sysfs() to a reusable read() function
- Rename eth() to netdev(), pass full interface name
- Rename board() to interface()
- Split reuable get_netdev_addr() out of netdev()

gsub() returns the number of matches as its second return value. This
was unintendedly passed through by the util functions trim() and
node_id(). It can be presumed that this had no effect in practice, but
it can lead to surprising output when passing values to print() for
debugging.