LSK 16.06 v4.4-android
* tag 'lsk-v4.4-16.06-android': (447 commits)
Linux 4.4.14
netfilter: x_tables: introduce and use xt_copy_counters_from_user
netfilter: x_tables: do compat validation via translate_table
netfilter: x_tables: xt_compat_match_from_user doesn't need a retval
netfilter: ip6_tables: simplify translate_compat_table args
netfilter: ip_tables: simplify translate_compat_table args
netfilter: arp_tables: simplify translate_compat_table args
netfilter: x_tables: don't reject valid target size on some architectures
netfilter: x_tables: validate all offsets and sizes in a rule
netfilter: x_tables: check for bogus target offset
netfilter: x_tables: check standard target size too
netfilter: x_tables: add compat version of xt_check_entry_offsets
netfilter: x_tables: assert minimum target size
netfilter: x_tables: kill check_entry helper
netfilter: x_tables: add and use xt_check_entry_offsets
netfilter: x_tables: validate targets of jumps
netfilter: x_tables: don't move to non-existent next rule
drm/core: Do not preserve framebuffer on rmfb, v4.
crypto: qat - fix adf_ctl_drv.c:undefined reference to adf_init_pf_wq
netfilter: x_tables: fix unconditional helper
...
Some drivers also need a control like
V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE to force an encoder
key frame. Add a general V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME
so the new drivers and applications can use it.
Signed-off-by: Wu-Cheng Li <wuchengli@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
(cherry picked from commit 0c8485ca3f2aaf7842d45ba24c667a9492c9900f)
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
BUG=chromium:572825
TEST=Build and boot oak-rev5 to UI
TEST=emerge-smaug chromeos-kernel-3_18
Reviewed-on: https://chromium-review.googlesource.com/328870
Commit-Ready: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Change-Id: I45de3048d41edbe443b3d202c17e79f2d448213b
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
When queuing buffers allow for passing the configuration store ID that
should be associated with this buffer. Use the 'reserved2' field for this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
BUG=chrome-os-partner:33728
TEST=build
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/232583
Trybot-Ready: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Wu-cheng Li <wuchengli@chromium.org>
Commit-Queue: Tomasz Figa <tfiga@chromium.org>
Conflicts:
drivers/media/v4l2-core/videobuf2-core.c
[rebase44(groeck): fixed conflicts; structural changes to match v4.4]
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Conflicts:
drivers/media/v4l2-core/v4l2-compat-ioctl32.c
Change-Id: Ibb823e9369bec79645e09651b0dda006ed53ecc5
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
The ctrl_class is fairly pointless when used with drivers that use the control
framework: you can just fill in 0 and it will just work fine. There are still
some old unconverted drivers that do not support 0 and instead want the control
class there. The idea being that all controls in the list all belong to that
class. This was done to simplify drivers in the absence of the control framework.
When using the control framework the framework itself is smart enough to allow
controls of any class to be included in the control list.
Since configuration store IDs are in the range 1..255 (or so, in any case a relatively
small non-zero positive integer) it makes sense to effectively rename ctrl_class
to config_store. Set it to 0 and you get the normal behavior (you change the current
control value), set it to a configuration store ID and you get/set the control for
that store.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
BUG=chrome-os-partner:33728
TEST=build
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/232582
Trybot-Ready: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Wu-cheng Li <wuchengli@chromium.org>
Commit-Queue: Tomasz Figa <tfiga@chromium.org>
Conflicts:
include/uapi/linux/videodev2.h
Change-Id: I862bb5796e27bcbbd055e22202ac9a1ed0cc6f7d
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
It is entirely possible that some PMUs need specific configuration
that is currently not found in the perf options before a session
can be setup.
It is the case for the CoreSight PMU where a sink needs to be
provided. That sink doesn't fall in any of the current perf
options.
As such this patch adds the capability to receive driver
specific configuration using the existing ioctl() mechanism.
Once the configuration has been pushed down the kernel PMU
callbacks are used to deal with the information sent from user
space.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This driver adds support for the STM CoreSight IP block, allowing any
system compoment (HW or SW) to log and aggregate messages via a
single entity.
The CoreSight STM exposes an application defined number of channels
called stimulus port. Configuration is done using entries in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Michael Williams <michael.williams@arm.com>
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 237483aa5c)
Define a new ioctl for MTP_SEND_EVENT, as its
ioctl numbers depends on the size of struct
mtp_event, which varies in ARCH32 and ARCH64.
Change-Id: I060604057ac6c55991118b3f61b187468b4ee0fd
Signed-off-by: Rohith Seelaboyina <rseelaboyina@nvidia.com>
Reviewed-on: http://git-master/r/377800
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
Allows FUSE to report to inotify that it is acting
as a layered filesystem. The userspace component
returns a string representing the location of the
underlying file. If the string cannot be resolved
into a path, the top level path is returned instead.
bug: 23904372
Change-Id: Iabdca0bbedfbff59e9c820c58636a68ef9683d9f
Signed-off-by: Daniel Rosenberg <drosen@google.com>
[ Upstream commit 4a91cb61bb ]
glibc's net/if.h contains copies of definitions from linux/if.h and these
conflict and cause build failures if both files are included by application
source code. Changes in uapi headers, which fixed header file dependencies to
include linux/if.h when it was needed, e.g. commit 1ffad83d, made the
net/if.h and linux/if.h incompatibilities visible as build failures for
userspace applications like iproute2 and xtables-addons.
This patch fixes compile errors when glibc net/if.h is included before
linux/if.h:
./linux/if.h:99:21: error: redeclaration of enumerator ‘IFF_NOARP’
./linux/if.h:98:23: error: redeclaration of enumerator ‘IFF_RUNNING’
./linux/if.h:97:26: error: redeclaration of enumerator ‘IFF_NOTRAILERS’
./linux/if.h:96:27: error: redeclaration of enumerator ‘IFF_POINTOPOINT’
./linux/if.h:95:24: error: redeclaration of enumerator ‘IFF_LOOPBACK’
./linux/if.h:94:21: error: redeclaration of enumerator ‘IFF_DEBUG’
./linux/if.h:93:25: error: redeclaration of enumerator ‘IFF_BROADCAST’
./linux/if.h:92:19: error: redeclaration of enumerator ‘IFF_UP’
./linux/if.h:252:8: error: redefinition of ‘struct ifconf’
./linux/if.h:203:8: error: redefinition of ‘struct ifreq’
./linux/if.h:169:8: error: redefinition of ‘struct ifmap’
./linux/if.h:107:23: error: redeclaration of enumerator ‘IFF_DYNAMIC’
./linux/if.h:106:25: error: redeclaration of enumerator ‘IFF_AUTOMEDIA’
./linux/if.h:105:23: error: redeclaration of enumerator ‘IFF_PORTSEL’
./linux/if.h:104:25: error: redeclaration of enumerator ‘IFF_MULTICAST’
./linux/if.h:103:21: error: redeclaration of enumerator ‘IFF_SLAVE’
./linux/if.h:102:22: error: redeclaration of enumerator ‘IFF_MASTER’
./linux/if.h:101:24: error: redeclaration of enumerator ‘IFF_ALLMULTI’
./linux/if.h:100:23: error: redeclaration of enumerator ‘IFF_PROMISC’
The cases where linux/if.h is included before net/if.h need a similar fix in
the glibc side, or the order of include files can be changed userspace
code as a workaround.
This change was tested in x86 userspace on Debian unstable with
scripts/headers_compile_test.sh:
$ make headers_install && \
cd usr/include && ../../scripts/headers_compile_test.sh -l -k
...
cc -Wall -c -nostdinc -I /usr/lib/gcc/i586-linux-gnu/5/include -I /usr/lib/gcc/i586-linux-gnu/5/include-fixed -I . -I /home/mcfrisk/src/linux-2.6/usr/headers_compile_test_include.2uX2zH -I /home/mcfrisk/src/linux-2.6/usr/headers_compile_test_include.2uX2zH/i586-linux-gnu -o /dev/null ./linux/if.h_libc_before_kernel.h
PASSED libc before kernel test: ./linux/if.h
Reported-by: Jan Engelhardt <jengelh@inai.de>
Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Reported-by: Stephen Hemminger <shemming@brocade.com>
Reported-by: Waldemar Brodkorb <mail@waldemar-brodkorb.de>
Cc: Gabriel Laskar <gabriel@lse.epita.fr>
Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* linux-linaro-lsk-v4.4-android: (797 commits)
parisc: Use generic extable search and sort routines
arm64: kasan: Use actual memory node when populating the kernel image shadow
arm64: mm: treat memstart_addr as a signed quantity
arm64: lse: deal with clobbered IP registers after branch via PLT
arm64: mm: check at build time that PAGE_OFFSET divides the VA space evenly
arm64: kasan: Fix zero shadow mapping overriding kernel image shadow
arm64: consistently use p?d_set_huge
arm64: fix KASLR boot-time I-cache maintenance
arm64: hugetlb: partial revert of 66b3923a1a
arm64: make irq_stack_ptr more robust
arm64: efi: invoke EFI_RNG_PROTOCOL to supply KASLR randomness
efi: stub: use high allocation for converted command line
efi: stub: add implementation of efi_random_alloc()
efi: stub: implement efi_get_random_bytes() based on EFI_RNG_PROTOCOL
arm64: kaslr: randomize the linear region
arm64: add support for kernel ASLR
arm64: add support for building vmlinux as a relocatable PIE binary
arm64: switch to relative exception tables
extable: add support for relative extables to search and sort routines
scripts/sortextable: add support for ET_DYN binaries
...
Conflicts:
arch/arm64/mm/dma-mapping.c
drivers/clk/rockchip/clk-rk3368.c
drivers/mmc/core/core.c
drivers/mmc/core/sdio.c
include/linux/dcache.h
Change-Id: Ibaa1e90ac735db8d9f5e542c266ef27b91616ef4
commit 3020ca7118 upstream.
The VSync polarity was negative instead of positive for the 4k CEA formats.
I probably copy-and-pasted these from the DMT 4k format, which does have a
negative VSync polarity.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace the obsolete field ctrl_class with "which".
Make sure it not used in future modules by commenting out the field with
ifndef __KERNEL_ .
The field cannot be simply removed because that would be change on the
kenel API to the userspace (and we don't like that).
Change-Id: I21bfb7c2a4b553e74765213fd99c381d8b609cc0
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Alpha Lin <alpha.lin@rock-chips.com>
(cherry picked from commit 0f8017bebf)
So it can be used to get the default value of a control.
Without this change it is not possible to get the
default value of array controls.
Change-Id: I4370b7f2a40a08f28648f8dcaa3d84405db12523
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Alpha Lin <alpha.lin@rock-chips.com>
(cherry picked from commit 35ec2a2fa5)
Only included the source code as is for kernel 3.0. Following patches
take care of porting this file system to version 3.10.
Change-Id: I09e76db77cd98a059053ba5b6fd88572a4b75b5b
Signed-off-by: Daniel Campello <campello@google.com>
This patch adds a SOCK_DESTROY operation, a destroy function
pointer to sock_diag_handler, and a diag_destroy function
pointer. It does not include any implementation code.
[backport of net-next 64be0aed59]
Change-Id: Ic5327ff14b39dd268083ee4c1dc2c934b2820df5
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* linux-linaro-lsk-v4.4-android: (477 commits)
arm64: vdso: Mark vDSO code as read-only
ARM/vdso: Mark the vDSO code read-only after init
x86/vdso: Mark the vDSO code read-only after init
lkdtm: Verify that '__ro_after_init' works correctly
arch: Introduce post-init read-only memory
x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
asm-generic: Consolidate mark_rodata_ro()
Linux 4.4.6
ld-version: Fix awk regex compile failure
target: Drop incorrect ABORT_TASK put for completed commands
block: don't optimize for non-cloned bio in bio_get_last_bvec()
MIPS: smp.c: Fix uninitialised temp_foreign_map
MIPS: Fix build error when SMP is used without GIC
ovl: fix getcwd() failure after unsuccessful rmdir
ovl: copy new uid/gid into overlayfs runtime inode
userfaultfd: don't block on the last VM updates at exit time
powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages
powerpc/powernv: Add a kmsg_dumper that flushes console output on panic
powerpc: Fix dedotify for binutils >= 2.26
...
Only included the source code as is for kernel 3.0. Following patches
take care of porting this file system to version 3.10.
Change-Id: I09e76db77cd98a059053ba5b6fd88572a4b75b5b
Signed-off-by: Daniel Campello <campello@google.com>
commit a9cf8284b4 upstream.
Commit 9d99a8dda1 ("nvme: move hardware structures out of the uapi
version of nvme.h") renamed nvme.h to nvme_ioctl.h, but the uapi list
still refers to nvme.h. People trying to install the headers hit a
failure as the header no longer exists.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds a SOCK_DESTROY operation, a destroy function
pointer to sock_diag_handler, and a diag_destroy function
pointer. It does not include any implementation code.
[backport of net-next 64be0aed59]
Change-Id: Ic5327ff14b39dd268083ee4c1dc2c934b2820df5
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* What
This provides an interface for issuing an FITRIM which uses the
secure discard instead of just a discard.
Only the eMMC command is "secure", and not how the FS uses it:
due to the fact that the FS might reassign a region somewhere else,
the original deleted data will not be affected by the "trim" which only
handles un-used regions.
So we'll just call it "deep discard", and note that this is a
"best effort" cleanup.
* Why
Once in a while, We want to be able to cleanup most of the unused blocks
after erasing a bunch of files.
We don't want to constantly secure-discard via a mount option.
From an eMMC spec perspective, it tells the device to really get rid of
all the data for the specified blocks and not just put them back into the
pool of free ones (unlike the normal TRIM). The eMMC spec says the
secure trim handling must make sure the data (and metadata) is not available
anymore. A simple TRIM doesn't clear the data, it just puts blocks in the
free pool.
JEDEC Standard No. 84-A441
7.6.9 Secure Erase
7.6.10 Secure Trim
From an FS perspective, it is acceptable to leave some data behind.
- directory entries related to deleted files
- databases entries related to deleted files
- small-file data stored in inode extents
- blocks held by the FS waiting to be re-used (mitigated by sync).
- blocks reassigned by the FS prior to FIDTRIM.
Change-Id: I676a1404a80130d93930c84898360f2e6fb2f81e
Signed-off-by: Geremy Condra <gcondra@google.com>
Signed-off-by: JP Abgrall <jpa@google.com>
Userspace processes often have multiple allocators that each do
anonymous mmaps to get memory. When examining memory usage of
individual processes or systems as a whole, it is useful to be
able to break down the various heaps that were allocated by
each layer and examine their size, RSS, and physical memory
usage.
This patch adds a user pointer to the shared union in
vm_area_struct that points to a null terminated string inside
the user process containing a name for the vma. vmas that
point to the same address will be merged, but vmas that
point to equivalent strings at different addresses will
not be merged.
Userspace can set the name for a region of memory by calling
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, (unsigned long)name);
Setting the name to NULL clears it.
The names of named anonymous vmas are shown in /proc/pid/maps
as [anon:<name>] and in /proc/pid/smaps in a new "Name" field
that is only present for named vmas. If the userspace pointer
is no longer valid all or part of the name will be replaced
with "<fault>".
The idea to store a userspace pointer to reduce the complexity
within mm (at the expense of the complexity of reading
/proc/pid/mem) came from Dave Hansen. This results in no
runtime overhead in the mm subsystem other than comparing
the anon_name pointers when considering vma merging. The pointer
is stored in a union with fieds that are only used on file-backed
mappings, so it does not increase memory usage.
Includes fix from Jed Davis <jld@mozilla.com> for typo in
prctl_set_vma_anon_name, which could attempt to set the name
across two vmas at the same time due to a typo, which might
corrupt the vma list. Fix it to use tmp instead of end to limit
the name setting to a single vma at a time.
Change-Id: I9aa7b6b5ef536cd780599ba4e2fba8ceebe8b59f
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
PR_SET_TIMERSLACK_PID value keep colliding with that of
newer prctls in mainline (e.g. first with PR_SET_THP_DISABLE,
and again with PR_MPX_ENABLE_MANAGEMENT).
So reset PR_SET_TIMERSLACK_PID to a large number so as to
avoid conflict in the near term while it is out of mainline
tree.
Corresponding Change-Id up for review in platform/system/core
is Icd8c658c8eb62136dc26c2c4c94f7782e9827cdb
Change-Id: I061b25473acc020c13ee22ecfb32336bc358e76a
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Second argument is similar to PR_SET_TIMERSLACK, if non-zero then the
slack is set to that value otherwise sets it to the default for the thread.
Takes PID of the thread as the third argument.
This allows power/performance management software to set timer slack for
other threads according to its policy for the thread (such as when the
thread is designated foreground vs. background activity)
Change-Id: I744d451ff4e60dae69f38f53948ff36c51c14a3f
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Move the entire contents of linux/usb/f_accessory.h header to uapi,
it only contains a userspace interface.
Change-Id: Ieb5547da449588ae554988a201c0e6b4e3afc531
Signed-off-by: Colin Cross <ccross@android.com>
Move the most of linux/usb/f_mtp.h header to uapi. Move the only
remaining structure definition into f_mtp.c, the only place that
uses it.
Change-Id: I952c1a9dc15c36bf295a0eb4d74b6b1ad912ed03
Signed-off-by: Colin Cross <ccross@android.com>
Update xt_socket_lookup_slow_v* usage in aosp patches, to
align with changes from mainline commit 686c9b5080
"netfilter: x_tables: Use par->net instead of computing
from the passed net devices".
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Add missing header <linux/miscdevice.h> and use
xt_socket_lookup_slow_v* instead of xt_socket_get*_sk
in xt_qtaguid.c.
Fix xt_socket_lookup_slow_v* functions in xt_socket.c
and declare them in xt_socket.h
Change-Id: I55819b2d4ffa82a2be20995c87d28fb5cc77b5ba
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Removing obsolete xt_socket_put_sk() and using sock_gen_put() instead.
xt_socket_put_sk() was reintroduced for xt_qtaguid in one of the patches,
but it turned out sock_gen_put() supersedes xt_socket_put_sk(). So we
don't need xt_socket_put_sk() any more.
This patch is based on commit 1a8bf6eeef (netfilter: xt_socket: use sock_gen_put())
Change-Id: I976d5f7f7eded0f3cc91b596acfeb35e4c2057e5
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
(cherry picked from commit 551780fc28cb7480dbc4f585ef80ca02c2922ec1)
Signed-off-by: John Stultz <john.stultz@linaro.org>
Fix up build kuid/kguid build issues in netfilter code.
Also re-add the xt_socket_get/put_sk interfaces needed by xt_qtaguid.
Change-Id: I7027fb840e109785bddffe8ea717b8d018b26d82
Signed-off-by: John Stultz <john.stultz@linaro.org>
This contains the following commits:
1. cc2f522 net: core: Add a UID range to fib rules.
2. d7ed2bd net: core: Use the socket UID in routing lookups.
3. 2f9306a net: core: Add a RTA_UID attribute to routes.
This is so that userspace can do per-UID route lookups.
4. 8e46efb net: ipv6: Use the UID in IPv6 PMTUD
IPv4 PMTUD already does this because ipv4_sk_update_pmtu
uses __build_flow_key, which includes the UID.
Bug: 15413527
Change-Id: Iae3d4ca3979d252b6cec989bdc1a6875f811f03a
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Currently, IPv6 router discovery always puts routes into
RT6_TABLE_MAIN. This causes problems for connection managers
that want to support multiple simultaneous network connections
and want control over which one is used by default (e.g., wifi
and wired).
To work around this connection managers typically take the routes
they prefer and copy them to static routes with low metrics in
the main table. This puts the burden on the connection manager
to watch netlink to see if the routes have changed, delete the
routes when their lifetime expires, etc.
Instead, this patch adds a per-interface sysctl to have the
kernel put autoconf routes into different tables. This allows
each interface to have its own autoconf table, and choosing the
default interface (or using different interfaces at the same
time for different types of traffic) can be done using
appropriate ip rules.
The sysctl behaves as follows:
- = 0: default. Put routes into RT6_TABLE_MAIN as before.
- > 0: manual. Put routes into the specified table.
- < 0: automatic. Add the absolute value of the sysctl to the
device's ifindex, and use that table.
The automatic mode is most useful in conjunction with
net.ipv6.conf.default.accept_ra_rt_table. A connection manager
or distribution could set it to, say, -100 on boot, and
thereafter just use IP rules.
Change-Id: I82d16e3737d9cdfa6489e649e247894d0d60cbb1
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
