Their kernel partition is too small, the OpenWrt build system
is unable to create an image.

This adds a warning that entprise switches with an IGMP/MLD snooping
feature are not supported yet with IGMP/MLD filtering enabled.

For this to work, firstly the Linux bridge on the Gluon node needs to
support Multicast Router Discovery (RFC4286). But this feature was only
added to the Linux kernel recently, in 5.1.

Secondly, a Gluon node would need to periodically send "Multicast Router
Advertisment" (RFC4286) messages, to "announce" the multicast router
port setting on bridge port bat0.

Thirdly, the IGMP/MLD snooping switches would need to implement
RFC4286.

The kernel partition on these devices is too small for the
OpenWrt 19.07 kernel. It is also located after the rootfs, so
we cannot grow it further.

Therefore mark these devices as deprecated now.

Fixes #1821

This adds documentation for the gluon-mesh-batman-adv package and
elaborates on its build and configuration options, as well as
the implemented multicast architecture.

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

Fixes #1775

Fixes #1718

It seems this was changed by accident.

$(TOPDIR) does not contain a trailing slash.
Thus the 'gluon.mk'-include must include
the trailing slash. (Just like the link to
$(INCLUDE_DIR)/package.mk does.)

Signed-off-by: Chris Fiege <chris@tinyhost.de>

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

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

gluon-hoodselector docs: replace 'Router have' with 'Router has'

gluon-hoodselector: docs: fix spelling/grammar

docs: gluon-hoodselector.rst, chnage 'VPN-mode' to VPN mode and 'trigon polygon' to triangle

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

docs/package/gluon-hoodselector: update .dia and .svg to current code behave

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

docs/package/gluon-hoodselector: replace hood with domain update doc to current code behave

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

docs hoodselector: fix spelling

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

docs/package/gluon-hoodselector: fix spelling second round

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

docs:gluon-hoodselector.rst: fix spelling

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

docs gluon-hoodselector.rst: fix line length

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

docs gluon-hoodselector: rename doc imports to be assoziated with the hoodselector

docs gluon-hoodselector: fix image name and rst inmport

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

docs gluon-hoodselector: information without es (uncountable)

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

docs/package: gluon-hoodselector.rst fix grammer issues

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

small grammatical fix

Uncovered by sphinx-build:
docs/releases/v2018.2.1.rst:19: WARNING: Too many autonumbered footnote references: only 0 corresponding footnotes available.
docs/releases/v2018.2.1.rst:19: WARNING: Unknown target name: "noibss".
docs/releases/v2018.2.1.rst:26: WARNING: Unknown target name: "noibss".
docs/releases/v2018.2.1.rst:30: WARNING: Unknown target name: "noibss".
docs/releases/v2018.2.1.rst:34: WARNING: Unknown target name: "noibss".
docs/releases/v2018.2.1.rst:35: WARNING: Unknown target name: "noibss".

Issue was uncovered by sphinx-build:
docs/user/getting_started.rst:100: WARNING: Definition list ends without a blank line; unexpected unindent.

This new build flag is mandatory for now (it may default to 0 in a future
Gluon version). It may be set to the following values:

* 0 - Do not build any images for deprecated devices.
* upgrade - Only build sysupgrade images for deprecated devices.
* full - Build both sysupgrade and factory images for deprecated devices.

"Other" images are handled like factory images, as they are also used for
the initial installation of Gluon on a device.