gluon-mesh-batman-adv: remove gluon-mesh-batman-adv-14
This commit is contained in:
Matthias Schiffer
Martin Weinelt
parent
7837bc1059
commit
5b97d36c7e
@ -1,17 +1,17 @@
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gluon-ebtables-limit-arp
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========================
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The *gluon-ebtables-limit-arp* package adds filters to limit the
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amount of ARP requests client devices are allowed to send into the
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mesh.
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The *gluon-ebtables-limit-arp* package adds filters to limit the
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amount of ARP requests client devices are allowed to send into the
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mesh.
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The limits per client device, identified by its MAC address, are
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6 packets per minute and 1 per second per node in total.
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6 packets per minute and 1 per second per node in total.
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A burst of up to 50 ARP requests is allowed until the rate-limiting
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takes effect (see ``--limit-burst`` in ``ebtables(8)``).
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Furthermore, ARP requests for a target IP already present in the
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batman-adv DAT cache are excluded from rate-limiting, in regard
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batman-adv DAT cache are excluded from rate-limiting, in regard
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to both counting and filtering, as batman-adv will be able
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to respond locally without a burden for the mesh. Therefore, this
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limiter should not affect popular target IP addresses, like those
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@ -21,8 +21,8 @@ However it mitigates the impact on the mesh when a larger range of
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its IPv4 subnet is being scanned, which would otherwise result in
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a significant amount of ARP chatter, even for unused IP addresses.
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This package is selected by default if the installed routing
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package is gluon-mesh-batman-adv-14 or gluon-mesh-batman-adv-15.
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This package is installed by default if the selected routing
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feature is *mesh-batman-adv-15*.
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It can be unselected via::
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GLUON_SITE_PACKAGES := \
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@ -20,49 +20,11 @@ B.A.T.M.A.N. Advanced project homepage:
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* https://www.open-mesh.org/projects/batman-adv/wiki/Wiki
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Flavours
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--------
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Gluon currently supports two main build flavours of batman-adv:
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gluon-mesh-batman-adv-15
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^^^^^^^^^^^^^^^^^^^^^^^^
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This is the recommended batman-adv flavour to use.
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It follows recent, upstream batman-adv releases and is flexible to new feature additions.
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gluon-mesh-batman-adv-14 (`batman-adv-legacy`)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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`gluon-mesh-batman-adv-14`, also known as `batman-adv-legacy` or batman-adv v2013.4
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is the last batman-adv release with the batman-adv compatibility version 14, which
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was released in October 2013.
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With batman-adv v2014.0.0 a compat breakage became necessary for the introduction
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of new features. However, one of these features was the addition of TVLV support
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(type-version-length-value fields) which from then on allowed adding features
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without breaking packet format compatibility. This made it possible to stay with
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compatibility version 15 so far.
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For new installations `gluon-mesh-batman-adv-14` is **not recommended**. It misses
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a lot of bugfixes and is currently only available for existing communities
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until they have migrated. This package will soon be deprecated and removed.
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Also see:
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* https://www.open-mesh.org/projects/batman-adv/wiki/Compatversion
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* https://www.open-mesh.org/news/56
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* https://github.com/freifunk-gluon/batman-adv-legacy/
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B.A.T.M.A.N. Routing Algorithms
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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For the `gluon-mesh-batman-adv-15` package two routing algorithms are selectable
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via :ref:`site.conf mesh section <user-site-mesh>`: BATMAN_IV and BATMAN_V.
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For the `gluon-mesh-batman-adv-14` package, BATMAN_IV_LEGACY needs to be selected.
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Two routing algorithms are selectable via
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:ref:`site.conf mesh section <user-site-mesh>`: BATMAN_IV and BATMAN_V.
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BATMAN_IV - stable
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""""""""""""""""""
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@ -92,8 +54,8 @@ mesh protocol, it quickly reaches its limit.
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For meshes with about **50 nodes / 100 clients, or more** it is therefore highly
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recommended to add the :doc:`gluon-ebtables-filter-multicast`
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package. Also, with gluon-mesh-batman-adv-15 or gluon-mesh-batman-adv-14
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installed :doc:`gluon-ebtables-limit-arp` is selected by default.
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package. Also, with the *mesh-batman-adv-15* feature,
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:doc:`gluon-ebtables-limit-arp` is selected by default.
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Furthermore, by default IGMP and MLD messages are filtered. See
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:ref:`site.conf mesh section <user-site-mesh>` and
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@ -45,9 +45,8 @@ Consider these key values:
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.. _MSS clamping: https://www.tldp.org/HOWTO/Adv-Routing-HOWTO/lartc.cookbook.mtu-mss.html
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- Encapsulation: Account for the overhead created by the configured mesh protocol
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encapsulating the payload, which is
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- up to 32 Byte (14 Byte Ethernet + 18 Byte batadv) for batman-adv compat v15 (v2014.0 and later)
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- up to 28 Byte (14 Byte Ethernet + 14 Byte batadv) for batman-adv compat v14 (v2011.3.0 until and including v2013.4.0)
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encapsulating the payload, which is up to 32 Byte (14 Byte Ethernet + 18 Byte
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batadv).
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- PMTU: What MTU does the path between your gateway and each of its peers support?
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@ -106,4 +105,4 @@ Conclusion
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Determining the maximum MTU can be a tedious process, especially since the PMTU
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of peers could change at any time. The general recommendation for maximized
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compatibility is therefore the minimum MTU of 1312 Byte, which works well with
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all combinations of IPv4, IPv6, batman-adv compat v14 and v15.
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both IPv4 and IPv6.
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@ -244,12 +244,8 @@ mesh
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The mandatory value *routing_algo* selects the batman-adv protocol variant.
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The following values are supported:
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- ``BATMAN_IV_LEGACY`` (*mesh-batman-adv-14*)
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- ``BATMAN_IV`` (*mesh-batman-adv-15*)
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- ``BATMAN_V`` (*mesh-batman-adv-15*)
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When both *mesh-batman-adv-14* and *mesh-batman-adv-15* are included, this
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setting specifies which one to use.
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- ``BATMAN_IV``
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- ``BATMAN_V``
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The optional value *gw_sel_class* sets the gateway selection class, the
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default is ``20`` for B.A.T.M.A.N. IV and ``5000`` kbit/s for B.A.T.M.A.N. V.
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@ -598,12 +594,12 @@ prefix: The feature flag corresponding to the package *gluon-mesh-batman-adv-15*
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The file ``package/features`` in the Gluon repository (or
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``features`` in site feeds) can specify additional rules for deriving package lists
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from feature flags, e.g. specifying both *status-page* and either *mesh-batman-adv-14*
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or *mesh-batman-adv-15* will automatically select the additional package
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from feature flags, e.g. specifying both *status-page* and *mesh-batman-adv-15*
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will automatically select the additional package
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*gluon-status-page-mesh-batman-adv*. In the future, selecting the flags
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*mesh-vpn-fastd* and *respondd* might automatically enable the additional
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package *gluon-mesh-vpn-fastd-respondd*, and enabling *status-page* and
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*mesh-batman-adv-15* (or *-14*) with ``de`` in *GLUON_LANGS* could
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*mesh-batman-adv-15* with ``de`` in *GLUON_LANGS* could
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add the package *gluon-status-page-mesh-batman-adv-i18n-de*.
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In short, it is not necessary anymore to list all the individual packages that are
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@ -23,10 +23,10 @@ packages 'web-advanced' \
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packages 'web-advanced & autoupdater' \
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'gluon-web-autoupdater'
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packages 'status-page & (mesh-batman-adv-14 | mesh-batman-adv-15)' \
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packages 'status-page & mesh-batman-adv-15' \
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'gluon-status-page-mesh-batman-adv'
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packages 'mesh-batman-adv-14 | mesh-batman-adv-15' \
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packages 'mesh-batman-adv-15' \
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'gluon-ebtables-limit-arp' \
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'gluon-radvd'
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@ -5,9 +5,11 @@ PKG_VERSION:=1
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include ../gluon.mk
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define Package/gluon-mesh-batman-adv-common
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TITLE:=Gluon scripts for batman-adv and batman-adv-legacy
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DEPENDS:= \
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define Package/gluon-mesh-batman-adv-15
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PROVIDES:=gluon-mesh-batman-adv
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TITLE:=Support for batman-adv meshing (compat level 15)
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DEPENDS+= \
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+kmod-batman-adv \
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+gluon-core \
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+libgluonutil \
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+gluon-client-bridge \
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@ -23,36 +25,4 @@ define Package/gluon-mesh-batman-adv-common
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+@GLUON_SPECIALIZE_KERNEL:KERNEL_LIBCRC32C
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endef
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define Package/gluon-mesh-batman-adv-14
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PROVIDES:=gluon-mesh-batman-adv
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TITLE:=Support for batman-adv meshing (compat level 14)
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DEPENDS+= \
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+gluon-mesh-batman-adv-common \
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+kmod-batman-adv-legacy
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endef
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define Package/gluon-mesh-batman-adv-15
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PROVIDES:=gluon-mesh-batman-adv
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TITLE:=Support for batman-adv meshing (compat level 15)
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DEPENDS+= \
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+gluon-mesh-batman-adv-common \
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+kmod-batman-adv
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endef
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define Package/gluon-mesh-batman-adv-common/install
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$(Gluon/Build/Install)
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endef
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define Package/gluon-mesh-batman-adv-14/install
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$(INSTALL_DIR) $(1)/lib/gluon/mesh-batman-adv
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touch $(1)/lib/gluon/mesh-batman-adv/compat-14
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endef
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#
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define Package/gluon-mesh-batman-adv-15/install
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$(INSTALL_DIR) $(1)/lib/gluon/mesh-batman-adv
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touch $(1)/lib/gluon/mesh-batman-adv/compat-15
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endef
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$(eval $(call BuildPackageGluon,gluon-mesh-batman-adv-common))
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$(eval $(call BuildPackageGluon,gluon-mesh-batman-adv-14))
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$(eval $(call BuildPackageGluon,gluon-mesh-batman-adv-15))
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@ -2,18 +2,4 @@
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need_boolean(in_domain({'mesh', 'vxlan'}), not this_domain())
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need_number({'mesh', 'batman_adv', 'gw_sel_class'}, false)
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local allowed_algos = {}
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local has_compat_14 = (os.execute('exec ls "$IPKG_INSTROOT"/lib/gluon/mesh-batman-adv/compat-14 >/dev/null 2>&1') == 0)
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local has_compat_15 = (os.execute('exec ls "$IPKG_INSTROOT"/lib/gluon/mesh-batman-adv/compat-15 >/dev/null 2>&1') == 0)
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if has_compat_14 then
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table.insert(allowed_algos, 'BATMAN_IV_LEGACY')
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end
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if has_compat_15 then
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table.insert(allowed_algos, 'BATMAN_IV')
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table.insert(allowed_algos, 'BATMAN_V')
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end
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need_one_of({'mesh', 'batman_adv', 'routing_algo'}, allowed_algos)
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need_one_of({'mesh', 'batman_adv', 'routing_algo'}, {'BATMAN_IV', 'BATMAN_V'})
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@ -43,13 +43,7 @@ proto_gluon_bat0_setup() {
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ip link set primary0 address "$primary0_mac" mtu 1532 up
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local routing_algo="$(lua -e 'print(require("gluon.site").mesh.batman_adv.routing_algo())')"
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if [ "$routing_algo" = 'BATMAN_IV_LEGACY' ]; then
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modprobe batman-adv-legacy
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else
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modprobe batman-adv
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(echo "$routing_algo" >/sys/module/batman_adv/parameters/routing_algo) 2>/dev/null
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fi
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(echo "$routing_algo" >/sys/module/batman_adv/parameters/routing_algo) 2>/dev/null
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echo bat0 > /sys/class/net/primary0/batman_adv/mesh_iface
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@ -64,8 +58,6 @@ proto_gluon_bat0_teardown() {
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ip link del bat0
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ip link del primary0
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rmmod batman-adv
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}
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add_protocol gluon_bat0
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@ -7,32 +7,22 @@ local util = require 'gluon.util'
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local uci = require('simple-uci').cursor()
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local gw_mode = uci:get('batman-adv', 'bat0', 'gw_mode') or uci:get('batman-adv-legacy', 'bat0', 'gw_mode') or 'client'
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local gw_mode = uci:get('batman-adv', 'bat0', 'gw_mode') or 'client'
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local gw_sel_class = site.mesh.batman_adv.gw_sel_class()
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local routing_algo = site.mesh.batman_adv.routing_algo()
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uci:delete('batman-adv-legacy', 'bat0')
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uci:delete('batman-adv', 'bat0')
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if routing_algo == 'BATMAN_IV_LEGACY' then
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uci:section('batman-adv-legacy', 'mesh', 'bat0', {
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orig_interval = 5000,
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gw_mode = gw_mode,
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gw_sel_class = gw_sel_class,
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hop_penalty = 15,
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})
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else
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uci:section('batman-adv', 'mesh', 'bat0', {
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orig_interval = 5000,
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gw_mode = gw_mode,
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gw_sel_class = gw_sel_class,
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hop_penalty = 15,
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routing_algo = routing_algo,
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multicast_mode = false,
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})
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end
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uci:save('batman-adv-legacy')
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uci:delete('batman-adv', 'bat0')
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uci:section('batman-adv', 'mesh', 'bat0', {
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orig_interval = 5000,
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gw_mode = gw_mode,
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gw_sel_class = gw_sel_class,
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hop_penalty = 15,
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routing_algo = routing_algo,
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multicast_mode = false,
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})
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uci:save('batman-adv')
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uci:delete('network', 'gluon_bat0')
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@ -232,24 +232,9 @@ static struct json_object * get_mesh(void) {
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return ret;
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}
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static struct json_object * get_batman_adv_compat(const char *version) {
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int compat = 15;
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if (!version)
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return NULL;
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if (strcmp(version, "2013.4.0") == 0)
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compat = 14;
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return json_object_new_int(compat);
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}
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static struct json_object * respondd_provider_nodeinfo(void) {
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struct json_object *ret = json_object_new_object();
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char *version = gluonutil_read_line("/sys/module/batman_adv/version");
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struct json_object *compat = get_batman_adv_compat(version);
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struct json_object *network = json_object_new_object();
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json_object_object_add(network, "addresses", get_addresses());
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json_object_object_add(network, "mesh", get_mesh());
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@ -257,8 +242,9 @@ static struct json_object * respondd_provider_nodeinfo(void) {
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struct json_object *software = json_object_new_object();
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struct json_object *software_batman_adv = json_object_new_object();
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json_object_object_add(software_batman_adv, "version", gluonutil_wrap_and_free_string(version));
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json_object_object_add(software_batman_adv, "compat", compat);
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json_object_object_add(software_batman_adv, "version",
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gluonutil_wrap_and_free_string(gluonutil_read_line("/sys/module/batman_adv/version")));
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json_object_object_add(software_batman_adv, "compat", json_object_new_int(15));
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json_object_object_add(software, "batman-adv", software_batman_adv);
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json_object_object_add(ret, "software", software);
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@ -1,22 +0,0 @@
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From: Linus Lüssing <linus.luessing@c0d3.blue>
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Date: Mon, 18 Feb 2019 18:28:03 +0100
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Subject: batctl: remove kmod-batman-adv dependency
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This always pulls in the batman-adv compat 15 kernel module. However,
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batctl works just as well with batman-adv-legacy (compat 14).
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Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
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diff --git a/batctl/Makefile b/batctl/Makefile
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index 4e67512844d07607852a5447a336dc9f93f5990a..df96ca7325ba3f84bd682da6df32fa4489474113 100644
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--- a/batctl/Makefile
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+++ b/batctl/Makefile
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@@ -23,7 +23,7 @@ define Package/batctl
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URL:=https://www.open-mesh.org/
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SECTION:=net
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CATEGORY:=Network
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- DEPENDS:=+kmod-batman-adv +libnl-tiny +libc +librt
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+ DEPENDS:=+libnl-tiny +libc +librt
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TITLE:=B.A.T.M.A.N. Advanced user space configuration tool batctl
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MAINTAINER:=Simon Wunderlich <sw@simonwunderlich.de>
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endef
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@ -1,21 +0,0 @@
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From: Linus Lüssing <linus.luessing@c0d3.blue>
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Date: Sun, 16 Jun 2019 00:01:36 +0200
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Subject: batman-adv: remove module autoload
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Instead of unconditionally loading this module on boot the gluon_bat0
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netifd protocol script will later take care of loading either the batman-adv
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or batman-adv-legacy module, depending on the configured routing
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algorithm in UCI.
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diff --git a/batman-adv/Makefile b/batman-adv/Makefile
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index ae434909c90f61efdf0d80b56352c983cfef25b0..e58f862b0e5fac7ac12d6ba5a09241d23148a252 100644
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--- a/batman-adv/Makefile
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+++ b/batman-adv/Makefile
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@@ -30,7 +30,6 @@ define KernelPackage/batman-adv
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DEPENDS:=+KMOD_BATMAN_ADV_BLA:kmod-lib-crc16 +kmod-crypto-crc32c +kmod-lib-crc32c +kmod-cfg80211
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TITLE:=B.A.T.M.A.N. Adv
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FILES:=$(PKG_BUILD_DIR)/net/batman-adv/batman-adv.$(LINUX_KMOD_SUFFIX)
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- AUTOLOAD:=$(call AutoProbe,batman-adv)
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endef
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define KernelPackage/batman-adv/description
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