The 'hwmode' setting has been replaced with 'band' in OpenWrt to add
support for newer bands outside of 2.4G and 5G. Adjust Gluon accordingly.

[Matthias Schiffer: rebased, extended commit message]

This removes PKG_VERSION and PKG_RELEASE from most Makefiles, as the
value was never useful for Gluon packages; instead, PKG_VERSION is set
to 1 in gluon.mk.

It also removes two other weird definitions:

- gluon-iptables-clamp-mss-to-pmtu replicating the old PKG_VERSION logic
  from gluon-core, but without the fixed PKG_BUILD_DIR to prevent
  unnessary rebuilds
- gluon-hoodselector set GLUON_VERSION=3

Calling git describe directly breaks isolation between the build system
and packages. Replace this with proper .config variables, like we
already do for GLUON_RELEASE.

Also replace the PKG_VERSION hack with a static '1', as we do for other
packages - while having those version numbers in opkg was cute, it was
also entirely useless. Having a fixed PKG_VERSION allows us to remove
the PKG_BUILD_DIR override as well.

Avoid requiring gluon.wireless from gluon.platform, and requiring
gluon.platform from various other scripts.

- Move site check for prefix4 and extra_prefixes6 to gluon-core, so the
  rules don't need to be duplicated in several packages. This also fixes
  gluon-respondd not checking extra_prefixes6 at all when
  gluon-ebtables-source-filter is not installed as well.
- A redundant check for prefix6 is removed from gluon-l3roamd (this was
  already checked by gluon-core)
- A separate check for prefix4 remains in gluon-client-bridge, as the
  setting in mandatory there

Co-authored-by: Michael Wyraz <michael.wyraz@evermind.de>

Specify conffiles for our packages, so they aren't overwritten during
opkg updates. While this only matters during development, it is
unintended to have different behaviour for opkg update and full firmware
updates.

The PHY lookup helper "find_phy_by_path" could not lookup the PHY name
for paths from multi-phy devices.

An example for such a path would be:
'1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0+1'

The integer after the plus (+) character determines the PHY index of the
specific device in relation to the PHY with the lowest index of the
device.

For example, if the device provides phy2 and phy3, the above path would
describe phy3. In case the device provides phy0 and phy1, it would
describe phy1.

Rewrite the "find_phy_by_path" function to support those paths as well
as regular device paths in a universal manner.

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

[Matthias Schiffer: simplify close_fds() helper and use in child process]

Delete all default network device sections upon first boot.

Only LAN & WAN networks are defined at this point. We are using the
legacy way of definiting bridges via the interface sections ifname
option.

The prior filtering was based upon a single device and didn't take into
consideration that DSA interface names can be named arbitrarily.

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

With the removal of ramips-rt305x, the last user of
GLUON_SPECIALIZE_KERNEL is gone.

VoCores aren't exactly useful mesh nodes except for experimentation.
They certainly aren't worth maintaining a whole target, in particular
one that has a WLAN driver not used by any other target.

Installing the script into the image allows site checks to run for
manual package installations via opkg.

The file_contains_line helper function was not testing whether a file
exists or not prior attempting to read from it.

Add this check to circumvent errors on the private WiFi config in
case the hwflags file is missing.

Reported-by: Tom Herbers <freifunk@tomherbers.de>
Tested-by: Tom Herbers <freifunk@tomherbers.de>
Signed-off-by: David Bauer <mail@david-bauer.net>

The relevant entry for the primary MAC location was lost when rebasing
the patch on OpenWrt 21.02.

Fixes commit ded4b8a7 ("rockchip-armv8: add FriendlyARM NanoPi R2S")

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

Configure a radio for HE (802.11ax) operation in case it's supported by
the hardware. This can be the case for 2.4 GHz as well as 5 GHz.

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

Multi-port interfaces are stored in the network config as an array using
the ports key.

Single LAN and WAN interfaces are now stored in the network configs
"device" key.

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.

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

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

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.