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daniel f576ff05a1 kernel: Fix ipv6 mc snooping if bridge has no ipv6 address
This patch is a backport for current LEDE 4.4 Kernels.
It is already upstream, for linux-next and stable.
The initial commit message is below:

The bridge is falsly dropping ipv6 mulitcast packets if there is:
 1. No ipv6 address assigned on the brigde.
 2. No external mld querier present.
 3. The internal querier enabled.

When the bridge fails to build mld queries, because it has no
ipv6 address, it slilently returns, but keeps the local querier enabled.
This specific case causes confusing packet loss.

Ipv6 multicast snooping can only work if:
 a) An external querier is present
 OR
 b) The bridge has an ipv6 address an is capable of sending own queries

Otherwise it has to forward/flood the ipv6 multicast traffic,
because snooping cannot work.

This patch fixes the issue by adding a flag to the bridge struct that
indicates that there is currently no ipv6 address assinged to the bridge
and returns a false state for the local querier in
__br_multicast_querier_exists().

Special thanks to Linus Lüssing.

Signed-off-by: Daniel Danzberger <daniel@dd-wrt.com>
2016-06-30 22:48:39 +02:00
config kernel: Add option to make using filesystem ACL support the default 2016-06-30 22:48:39 +02:00
docs build: Prevent more gzip timestamps 2015-07-14 09:57:45 +00:00
include kernel: update to version 4.4.14 2016-06-26 18:20:37 +02:00
package spidev_test: copy the source code into the package folder 2016-06-30 22:48:39 +02:00
scripts scripts: feeds: fix version detection for Make >= 4.2.1 2016-06-15 19:10:32 +02:00
target kernel: Fix ipv6 mc snooping if bridge has no ipv6 address 2016-06-30 22:48:39 +02:00
toolchain toolchain/gdb: Use correct folder name for ARC patches 2016-06-13 22:51:42 +02:00
tools e2fsprogs: fix build problem with very old libmagic 2016-06-30 20:51:53 +02:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore build: add integration for managing opkg package feed keys 2015-04-06 19:39:51 +00:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in branding: add LEDE branding 2016-03-24 22:40:13 +01:00
LICENSE finally move buildroot-ng to trunk 2016-03-20 17:29:15 +01:00
Makefile build: fix make clean, delete package directories for selected arch 2016-05-11 10:02:36 +02:00
README README: Update project README 2016-05-12 03:29:36 +02:00
feeds.conf.default feeds.conf.default: disable management feed 2016-06-13 22:51:42 +02:00
rules.mk rules.mk: introduce new variable OUTPUT_DIR 2016-04-06 21:49:15 +02:00

README

This is the buildsystem for the LEDE Linux distribution.

Please use "make menuconfig" to choose your preferred
configuration for the toolchain and firmware.

You need to have installed gcc, binutils, bzip2, flex, python, perl, make,
find, grep, diff, unzip, gawk, getopt, subversion, libz-dev and libc headers.

Run "./scripts/feeds update -a" to get all the latest package definitions
defined in feeds.conf / feeds.conf.default respectively
and "./scripts/feeds install -a" to install symlinks of all of them into
package/feeds/.

Use "make menuconfig" to configure your image.

Simply running "make" will build your firmware.
It will download all sources, build the cross-compile toolchain, 
the kernel and all choosen applications.

To build your own firmware you need to have access to a Linux, BSD or MacOSX system
(case-sensitive filesystem required). Cygwin will not be supported because of
the lack of case sensitiveness in the file system.


Sunshine!
	Your LEDE Community
	http://www.lede-project.org