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