[B.A.T.M.A.N.] batman-adv 2015.1 released
mareklindner at neomailbox.ch
Sat Aug 15 13:21:11 CEST 2015
August 10, 2015. The B.A.T.M.A.N. team today releases batman-adv 2015.1
focusing on code cleanups, stability and bugfixes. Since no major code changes
were introduced upgrading to this version should bear minimal risks. As the
kernel module always depends on the Linux kernel it is compiled against, it
does not make sense to provide binaries on our website. As usual, you will
find the signed tarballs in our download section:
as well as prepackaged binaries in your distribution.
The default settings for enabling Network Coding and the bridge loop avoidance
have been changed. If you are using either feature, please verify that your
setup still behaves as expected after the upgrade.
Thanks to all people sending in patches:
* Alex Suykov <alex.suykov at gmail.com>
* Antonio Quartulli <antonio at meshcoding.com>
* Linus Lüssing <linus.luessing at c0d3.blue>
* Marek Lindner <mareklindner at neomailbox.ch>
* Markus Pargmann <mpa at pengutronix.de>
* Ruben Wisniewsi <ruben at vfn-nrw.de>
* Simon Wunderlich <sw at simonwunderlich.de>
* Sven Eckelmann <sven at narfation.org>
With this release the source directory structure has been modified to align
with the batman-adv directory structure in the Linux kernel. This should
facilitate proposing and applying patches based on the code base shipped with
Linux kernel. In parallel to this restructuring effort, the compat layer
(needed to support older Linux kernel versions) also has been modernized. The
single compat include file has been divided into separate header files named
after their up-to-date counterparts. Previously needed explicit compat
includes could be removed, thus further reducing the difference between the
Linux kernel code and the out-of-tree repository.
To make the first time deployment a better experience the default
configuration has been changed: Network Coding support has been disabled due
to its dependency on WiFi promiscuous mode that not all WiFi chips/drivers
support. The bridge loop avoidance mechanism (BLA) has been enabled to prevent
accidental bridge loops from being created.
The batman-adv module came with its own Jenkins hash implementation used by
all sorts of components like the originator table, the translation table and
more. That implementation has been replaced with the in-kernel Jenkins hash
which provides better optimized code. The debugfs components aren't compiled
into the module anymore when debugfs is not compiled into the kernel. The
initialization upon detection of a batman-adv gateway has been fixed as it
could cause the kernel to hang on module unload. Various race conditions
triggered by concurrent delete events in the translation table code have been
fixed as well. Payload broadcast packets scheduled to be forwarded right on
batman-adv disable or module onload are now properly purged to prevent memory
leaks. With enabled distributed ARP table (DAT) batman-adv might have answered
an ARP request for a local client. An additional mac address check prevents
confusing switches in the LAN which rely on ARP to learn behind which port the
client is located. Quite some effort was spent to improve the overall code
readability, cleanups and coding style issues.
To support building batctl in combination with the musl C library the
if_ether.h header file is now included from the 'netinet' folder instead of
the 'linux' folder because musl does not allow mixing includes from 'netinet'
and 'linux' at the same time.
Interfaces with more than one link-local addresses are now supported by alfred
binding to specific an interfaces and its link-local EUI64 address. All
outgoing alfred packets will be originating from that single address.
The size of the maximum alfred payload was slightly reduced. This ensures that
the UDP/IPv6 stack is able to transfer the push data packets between different
The B.A.T.M.A.N. team
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