Erik Kline efe8261b88 net: ipv6: Add a sysctl to make optimistic addresses useful candidates ... Add a sysctl that causes an interface's optimistic addresses to be considered equivalent to other non-deprecated addresses for source address selection purposes. Preferred addresses will still take precedence over optimistic addresses, subject to other ranking in the source address selection algorithm. This is useful where different interfaces are connected to different networks from different ISPs (e.g., a cell network and a home wifi network). The current behaviour complies with RFC 3484/6724, and it makes sense if the host has only one interface, or has multiple interfaces on the same network (same or cooperating administrative domain(s), but not in the multiple distinct networks case. For example, if a mobile device has an IPv6 address on an LTE network and then connects to IPv6-enabled wifi, while the wifi IPv6 address is undergoing DAD, IPv6 connections will try use the wifi default route with the LTE IPv6 address, and will get stuck until they time out. Also, because optimistic nodes can receive frames, issue an RTM_NEWADDR as soon as DAD starts (with the IFA_F_OPTIMSTIC flag appropriately set). A second RTM_NEWADDR is sent if DAD completes (the address flags have changed), otherwise an RTM_DELADDR is sent. Also: add an entry in ip-sysctl.txt for optimistic_dad. [backport of net-next 7fd2561e4ebdd070ebba6d3326c4c5b13942323f] Signed-off-by: Erik Kline <ek@google.com> Acked-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net> Bug: 17769720 Bug: 18180674 Change-Id: I440a9b8c788db6767d191bbebfd2dff481aa9e0d		2014-12-01 19:37:26 +00:00
..
ABI	Add snapshot of mach-msm from beginning of msm-3.4	2013-02-27 18:09:25 -08:00
accounting
acpi	Update documentation for parameter *notrigger* in einj.txt	2012-03-30 03:30:19 -04:00
aoe	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
arm	uio: msm_sharedmem: Add new device driver for sharedmemory access	2014-07-15 23:59:19 +00:00
auxdisplay
backlight	backlight: new backlight driver for LP855x devices	2012-03-23 16:58:33 -07:00
blackfin
block	block: Add test-iosched scheduler	2013-02-27 18:13:18 -08:00
blockdev	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
cdrom
cgroups	Merge commit 'v3.4-rc3' into android-3.4	2012-04-19 14:42:22 -07:00
connector
console
cpu-freq	cpufreq: interactive: add boost pulse interface	2012-05-03 17:41:51 -07:00
cpuidle	cpuidle: add a sysfs entry to disable specific C state for debug purpose.	2012-03-30 01:52:58 -04:00
cris
crypto	crypto: Add MSM crypto drivers	2013-02-25 11:29:28 -08:00
development-process	Documentation: Update stable address	2011-12-12 14:14:31 -08:00
device-mapper	dm: add verity target	2012-03-28 18:43:38 +01:00
devicetree	uio: msm_sharedmem: Add new device driver for sharedmemory access	2014-07-15 23:59:19 +00:00
DocBook	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-04-21 12:43:23 -07:00
driver-model	Merge remote-tracking branches 'regulator/topic/devm' and 'regulator/topic/stub' into regulator-next	2012-03-18 21:38:28 +00:00
dvb	media: dvb: mpq: Use kthread instead of workqueue	2013-03-07 15:24:04 -08:00
early-userspace
EDID	drm: allow loading an EDID as firmware to override broken monitor	2012-03-20 10:09:28 +00:00
fault-injection
fb	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
filesystems	mm: add a field to store names for private anonymous memory	2013-10-11 10:02:06 -07:00
firmware_class
frv
hid	HID: uhid: add documentation	2013-03-04 12:45:09 -08:00
hwmon	hwmon: (k10temp) Add support for AMD Trinity CPUs	2012-04-01 10:25:56 -07:00
i2c	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
i2o	Documentation: Fix multiple typo in Documentation	2012-03-07 16:08:24 +01:00
ia64
ide	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
infiniband
input	Documentation: input.txt: clarify mousedev 'cat' command syntax	2012-03-30 16:03:15 -07:00
ioctl	Merge branch 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi	2012-04-02 09:50:40 -07:00
isdn	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
ja_JP
kbuild	Documentation: mention scripts/diffconfig tool	2012-03-30 16:03:15 -07:00
kdump	[S390] Add s390x description to Documentation/kdump/kdump.txt	2011-12-27 11:27:13 +01:00
ko_KR	driver-core: documentation: fix up Greg's email address	2012-02-15 14:48:01 -08:00
laptops	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
leds	drivers/leds/leds-lp5521.c: support led pattern data	2012-03-23 16:58:34 -07:00
m68k
make
mips
misc-devices
mmc	mmc: use percentage changed sectors as indication to check BKOPS need	2013-03-15 17:08:16 -07:00
mn10300
mtd	mtd: msm_qpic_nand: Initial driver for QPIC based NAND controller	2013-02-27 18:17:42 -08:00
namespaces
netlabel
networking	net: ipv6: Add a sysctl to make optimistic addresses useful candidates	2014-12-01 19:37:26 +00:00
nfc
parisc
PCI
pcmcia
power	Documentation: Point to correct header file	2013-02-25 11:36:56 -08:00
powerpc	Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup	2012-03-18 23:59:34 +01:00
pps
prctl	Documentation: prctl/seccomp_filter	2014-10-31 19:46:17 -07:00
pti
ptp
rapidio
RCU	rcu: Call out dangers of expedited RCU primitives	2012-02-21 09:06:08 -08:00
s390	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
scheduler	sched: Remove sched_switch	2012-01-27 13:28:53 +01:00
scsi	SCSI updates on 20120331	2012-03-31 13:31:23 -07:00
security	keys: update the documentation with info about "logon" keys	2012-04-25 12:46:50 -04:00
serial	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
sh
sound	ALSA: compress: add support for gapless playback	2013-04-18 16:08:45 -07:00
sparc
spi	spi: create a message queueing infrastructure	2012-03-07 19:19:48 -07:00
sysctl	msm: 8x55: put reason for boot in procfs from SMEM	2013-02-08 15:14:28 -08:00
target	Documentation: Fix typo in tcm_mod_builder.py	2012-02-10 09:52:18 +01:00
telephony
thermal	thermal: Rename generate_netlink_event	2012-01-23 03:15:25 -05:00
timers
trace	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-03-20 21:12:50 -07:00
usb	usb: misc: Add kickstart bridge driver	2013-02-27 18:19:01 -08:00
vDSO
video4linux	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
virtual	Merge branch 'kvm-updates/3.4' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-03-28 14:35:31 -07:00
vm	mm: move hugepage test examples to tools/testing/selftests/vm	2012-03-28 17:14:37 -07:00
w1
watchdog	watchdog: Add support for WDIOC_GETTIMELEFT IOCTL in watchdog core	2012-03-27 20:15:37 +02:00
wimax
x86
zh_CN	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2012-03-20 21:04:47 -07:00
.gitignore
00-INDEX	crc32: move long comment about crc32 fundamentals to Documentation/	2012-03-23 16:58:37 -07:00
android.txt	[docs] android: Add android config documentation to boot framework.	2012-04-09 13:53:13 -07:00
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
clk.txt	Documentation: common clk API	2012-03-16 20:35:01 +00:00
coccinelle.txt	coccinelle.txt: update documentation to include M= option	2012-01-14 22:25:56 +01:00
CodingStyle	Documentation: CodingStyle: add inline assembly guidelines	2012-03-30 16:03:15 -07:00
cpu-hotplug.txt	documentation: remove references to cpu_*_map.	2012-03-29 15:38:31 +10:30
cpu-load.txt
cputopology.txt
crc32.txt	crc32: move long comment about crc32 fundamentals to Documentation/	2012-03-23 16:58:37 -07:00
csdio.txt	mmc: Char SDIO Device Driver	2013-02-25 11:29:22 -08:00
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	vhost-net: add module alias (v2.1)	2012-01-13 10:12:23 -08:00
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt	common: DMA-mapping: Add strongly ordered memory attribute	2013-03-07 15:23:21 -08:00
dma-buf-sharing.txt	dma-buf: mmap support	2012-05-22 14:01:06 -07:00
DMA-ISA-LPC.txt
dmaengine.txt	Documentation: Fix multiple typo in Documentation	2012-03-07 16:08:24 +01:00
dontdiff	Documentation: remove 'mach' from dontdiff file	2012-03-30 16:03:15 -07:00
dynamic-debug-howto.txt	dynamic_debug: process multiple debug-queries on a line	2012-01-24 12:50:36 -08:00
edac.txt	EDAC: Correct scrub rate API	2012-03-19 12:03:58 +01:00
eisa.txt
email-clients.txt
feature-removal-schedule.txt	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2012-05-14 11:23:37 -07:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
genlock.txt	base: genlock: allow synchronization with a single gralloc handle	2013-02-25 11:29:17 -08:00
gpio.txt	Documentation/gpio.txt: Explain expected pinctrl interaction	2012-03-12 11:27:07 -06:00
highuid.txt
HOWTO	Documentation: Update stable address	2011-12-12 14:14:31 -08:00
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt	irq_domain: add documentation and MAINTAINERS entry.	2012-02-14 14:06:47 -07:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	ARM: integrate CMA with DMA-mapping subsystem	2013-02-27 18:14:48 -08:00
kmemcheck.txt
kmemleak.txt
kobject.txt	driver-core: documentation: fix up Greg's email address	2012-02-15 14:48:01 -08:00
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
lockup-watchdogs.txt	watchdog: Update documentation	2012-02-11 15:11:28 +01:00
logo.gif
logo.txt
magic-number.txt	drivers/net: fix up stale paths from driver reorg	2012-01-30 12:54:40 -05:00
Makefile	mm: move hugepage test examples to tools/testing/selftests/vm	2012-03-28 17:14:37 -07:00
ManagementStyle
mca.txt
md.txt	md: create externally visible flags for supporting hot-replace.	2011-12-23 10:17:51 +11:00
media-framework.txt
memory-barriers.txt
memory-hotplug.txt
memory.txt
mono.txt	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
mutex-design.txt
nommu-mmap.txt
numastat.txt	Doc: Update numastat.txt	2012-02-28 16:05:06 +01:00
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt	Documentation: remove references to /etc/modprobe.conf	2012-03-30 16:03:15 -07:00
pi-futex.txt
pinctrl.txt	pinctrl: enhance mapping table to support pin config operations	2012-03-05 11:25:11 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
ramoops.txt
rbtree.txt
remoteproc.txt	remoteproc: remove the single rpmsg vdev limitation	2012-03-06 19:14:12 +02:00
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt	rpmsg: add virtio-based remote processor messaging bus	2012-02-08 22:53:58 +02:00
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	stable: update documentation to ask for kernel version	2012-01-24 10:50:22 -08:00
static-keys.txt	static keys: Add docs better explaining the whole 'struct static_key' mechanism	2012-02-24 09:12:19 +01:00
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sync.txt	sync: add Documentation/sync.txt	2013-03-15 17:13:08 -07:00
sysfs-rules.txt
sysrq.txt	Documentation: sysrq: Crutcher Dunnavant is unavailable	2012-03-30 16:03:15 -07:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
VGA-softcursor.txt
vgaarbiter.txt	misc latin1 to utf8 conversions	2012-01-02 13:04:55 +01:00
video-output.txt
volatile-considered-harmful.txt
workqueue.txt
xz.txt
zorro.txt