# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2007-2020 B.A.T.M.A.N. contributors:
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#
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# Marek Lindner, Simon Wunderlich
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#
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# B.A.T.M.A.N meshing protocol
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#
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config BATMAN_ADV
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tristate "B.A.T.M.A.N. Advanced Meshing Protocol"
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depends on NET
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select LIBCRC32C
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help
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B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is
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a routing protocol for multi-hop ad-hoc mesh networks. The
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networks may be wired or wireless. See
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https://www.open-mesh.org/ for more information and user space
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tools.
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config BATMAN_ADV_BATMAN_V
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bool "B.A.T.M.A.N. V protocol"
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depends on BATMAN_ADV && !(CFG80211=m && BATMAN_ADV=y)
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default y
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help
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This option enables the B.A.T.M.A.N. V protocol, the successor
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of the currently used B.A.T.M.A.N. IV protocol. The main
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changes include splitting of the OGM protocol into a neighbor
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discovery protocol (Echo Location Protocol, ELP) and a new OGM
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Protocol OGMv2 for flooding protocol information through the
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network, as well as a throughput based metric.
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B.A.T.M.A.N. V is currently considered experimental and not
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compatible to B.A.T.M.A.N. IV networks.
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config BATMAN_ADV_BLA
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bool "Bridge Loop Avoidance"
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depends on BATMAN_ADV && INET
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select CRC16
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default y
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help
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This option enables BLA (Bridge Loop Avoidance), a mechanism
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to avoid Ethernet frames looping when mesh nodes are connected
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to both the same LAN and the same mesh. If you will never use
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more than one mesh node in the same LAN, you can safely remove
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this feature and save some space.
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config BATMAN_ADV_DAT
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bool "Distributed ARP Table"
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depends on BATMAN_ADV && INET
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default y
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help
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This option enables DAT (Distributed ARP Table), a DHT based
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mechanism that increases ARP reliability on sparse wireless
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mesh networks. If you think that your network does not need
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this option you can safely remove it and save some space.
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config BATMAN_ADV_NC
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bool "Network Coding"
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depends on BATMAN_ADV
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help
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This option enables network coding, a mechanism that aims to
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increase the overall network throughput by fusing multiple
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packets in one transmission.
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Note that interfaces controlled by batman-adv must be manually
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configured to have promiscuous mode enabled in order to make
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network coding work.
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If you think that your network does not need this feature you
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can safely disable it and save some space.
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config BATMAN_ADV_MCAST
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bool "Multicast optimisation"
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depends on BATMAN_ADV && INET && !(BRIDGE=m && BATMAN_ADV=y)
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default y
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help
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This option enables the multicast optimisation which aims to
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reduce the air overhead while improving the reliability of
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multicast messages.
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config BATMAN_ADV_DEBUGFS
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bool "batman-adv debugfs entries"
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depends on BATMAN_ADV
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depends on DEBUG_FS
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help
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Enable this to export routing related debug tables via debugfs.
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The information for each soft-interface and used hard-interface can be
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found under batman_adv/
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If unsure, say N.
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config BATMAN_ADV_DEBUG
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bool "B.A.T.M.A.N. debugging"
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depends on BATMAN_ADV
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help
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This is an option for use by developers; most people should
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say N here. This enables compilation of support for
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outputting debugging information to the debugfs log or tracing
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buffer. The output is controlled via the batadv netdev specific
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log_level setting.
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config BATMAN_ADV_SYSFS
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bool "batman-adv sysfs entries"
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depends on BATMAN_ADV
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help
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Say Y here if you want to enable batman-adv device configuration and
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status interface through sysfs attributes. It is replaced by the
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batadv generic netlink family but still used by various userspace
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tools and scripts.
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If unsure, say Y.
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config BATMAN_ADV_TRACING
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bool "B.A.T.M.A.N. tracing support"
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depends on BATMAN_ADV
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depends on EVENT_TRACING
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help
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This is an option for use by developers; most people should
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say N here. Select this option to gather traces like the debug
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messages using the generic tracing infrastructure of the kernel.
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BATMAN_ADV_DEBUG must also be selected to get trace events for
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batadv_dbg.
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