Commit Graph

36014 Commits

Author SHA1 Message Date
Richard Alpe
d6e164e321 tipc: fix socket list regression in new nl api
Commit 07f6c4bc (tipc: convert tipc reference table to use generic
rhashtable) introduced a problem with port listing in the new netlink
API. It broke the resume functionality resulting in a never ending
loop. This was caused by starting with the first hash table every time
subsequently never returning an empty skb (terminating).

This patch fixes the resume mechanism by keeping a logical reference
to the last hash table along with a logical reference to the socket
(port) that didn't fit in the previous message.

Signed-off-by: Richard Alpe <richard.alpe@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-18 00:27:05 -05:00
David S. Miller
e445dd5f67 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2015-01-16

Here are some more bluetooth & ieee802154 patches intended for 3.20:

 - Refactoring & cleanups of ieee802154 & 6lowpan code
 - Various fixes to the btmrvl driver
 - Fixes for Bluetooth Low Energy Privacy feature handling
 - Added build-time sanity checks for sockaddr sizes
 - Fixes for Security Manager registration on LE-only controllers
 - Refactoring of broken inquiry mode handling to a generic quirk

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-18 00:25:30 -05:00
Jiri Pirko
3aeb66176f net: replace br_fdb_external_learn_* calls with switchdev notifier events
This patch benefits from newly introduced switchdev notifier and uses it
to propagate fdb learn events from rocker driver to bridge. That avoids
direct function calls and possible use by other listeners (ovs).

Suggested-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-18 00:23:57 -05:00
Jiri Pirko
03bf0c2812 switchdev: introduce switchdev notifier
This patch introduces new notifier for purposes of exposing events which happen
on switch driver side. The consumers of the event messages are mainly involved
masters, namely bridge and ovs.

Suggested-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-18 00:23:57 -05:00
Nicolas Dichtel
66c1a12c65 socket: use ki_nbytes instead of iov_length()
This field already contains the length of the iovec, no need to calculate it
again.

Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-17 23:58:37 -05:00
Jiri Pirko
33e9fcc666 tc: cls_bpf: rename bpf_len to bpf_num_ops
It was suggested by DaveM to change the name as "len" might indicate
unit bytes.

Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-17 23:51:10 -05:00
Jiri Pirko
d23b8ad8ab tc: add BPF based action
This action provides a possibility to exec custom BPF code.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-17 23:51:10 -05:00
Roopa Prabhu
02dba4388d bridge: fix setlink/dellink notifications
problems with bridge getlink/setlink notifications today:
        - bridge setlink generates two notifications to userspace
                - one from the bridge driver
                - one from rtnetlink.c (rtnl_bridge_notify)
        - dellink generates one notification from rtnetlink.c. Which
	means bridge setlink and dellink notifications are not
	consistent

        - Looking at the code it appears,
	If both BRIDGE_FLAGS_MASTER and BRIDGE_FLAGS_SELF were set,
        the size calculation in rtnl_bridge_notify can be wrong.
        Example: if you set both BRIDGE_FLAGS_MASTER and BRIDGE_FLAGS_SELF
        in a setlink request to rocker dev, rtnl_bridge_notify will
	allocate skb for one set of bridge attributes, but,
	both the bridge driver and rocker dev will try to add
	attributes resulting in twice the number of attributes
	being added to the skb.  (rocker dev calls ndo_dflt_bridge_getlink)

There are multiple options:
1) Generate one notification including all attributes from master and self:
   But, I don't think it will work, because both master and self may use
   the same attributes/policy. Cannot pack the same set of attributes in a
   single notification from both master and slave (duplicate attributes).

2) Generate one notification from master and the other notification from
   self (This seems to be ideal):
     For master: the master driver will send notification (bridge in this
	example)
     For self: the self driver will send notification (rocker in the above
	example. It can use helpers from rtnetlink.c to do so. Like the
	ndo_dflt_bridge_getlink api).

This patch implements 2) (leaving the 'rtnl_bridge_notify' around to be used
with 'self').

v1->v2 :
	- rtnl_bridge_notify is now called only for self,
	so, remove 'BRIDGE_FLAGS_SELF' check and cleanup a few things
	- rtnl_bridge_dellink used to always send a RTM_NEWLINK msg
	earlier. So, I have changed the notification from br_dellink to
	go as RTM_NEWLINK

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-17 23:49:51 -05:00
Rickard Strandqvist
0026b6551b Bluetooth: Remove unused function
Remove the function hci_conn_change_link_key() that is not used anywhere.

This was partially found by using a static code analysis program called
cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-16 13:06:38 +02:00
Herbert Xu
919d9db952 netlink: Fix netlink_insert EADDRINUSE error
The patch c5adde9468 ("netlink:
eliminate nl_sk_hash_lock") introduced a bug where the EADDRINUSE
error has been replaced by ENOMEM.  This patch rectifies that
problem.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-16 02:38:07 -05:00
Nicolas Dichtel
12d872511c bridge: use MDBA_SET_ENTRY_MAX for maxtype in nlmsg_parse()
This is just a cleanup, because in the current code MDBA_SET_ENTRY_MAX ==
MDBA_SET_ENTRY.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 19:37:20 -05:00
David S. Miller
27f097177d Here's a big pile of changes for this round.
We have
  * a lot of regulatory code changes to deal with the
    way newer Intel devices handle this
  * a change to drop packets while disconnecting from
    an AP instead of trying to wait for them
  * a new attempt at improving the tailroom accounting
    to not kick in too much for performance reasons
  * improvements in wireless link statistics
  * many other small improvements and small fixes that
    didn't seem necessary for 3.19 (e.g. in hwsim which
    is testing only code)
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJUt7WEAAoJEDBSmw7B7bqrVBoP/2EViE62HMmXdqG1SZWz8q9o
 Iigq8STC/sT2WCx1pYm+tKuVW4LD2O3mCriGNP8A3RwzDZ6H7sKJYb1gV6QCPV6f
 4+yT5VSAB3D3lHmp/bbyNsmKCBQ5uS4LVgDrokrkbGpacDu94PYS5Wv9t3x6PBVB
 5Xjky6g6A/pSuxTIstSO9k5xkzNjaB1TxvVRz/gJrGcFQVkDFSlVbuTHUVxs8p+p
 k6mwY/2WYijZkswWZVQTJLQlF9vRI7PYkKs5m8gz4pjNU48oFJoyu4IP3Z1Xj/Sm
 zgT1C9rgp0Du74HYO2niGAvLWgKajAZuW5hIacDndUPjYQQBLgGs/bCJGSntM+x9
 XoOdPixdFPT/58ijyYZlmHc8rxPOd2kHsVbwGplp8f195S4VO04D+ejfOaoAUFwX
 v/kMvO3XIFmEH1jjkDAC3OTcRMYVMuENyWl7pFzxHIzPeRiEpQUd9iSdM4yol0F2
 ZyWvKud4U75Sh+aCiDIIBETtdfCRFe12hgKs4COYbI/UYkGPTPrNei/uisopdubT
 JC+7pZOYdSgoX12yVi6ds6DmKE/ZpIQyhIK4wTWgVoszbnfdb9Mw7mJEThwNRjeK
 JJPsbuty7u8HWjXzEqHLoTV3BFv1cgRSJc5Wt0zfME+LzD7iQpEpv+QBAguwwChD
 Osn55Z3FnKEmBdGcOIje
 =vaEW
 -----END PGP SIGNATURE-----

Merge tag 'mac80211-next-for-davem-2015-01-15' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Here's a big pile of changes for this round.

We have
 * a lot of regulatory code changes to deal with the
   way newer Intel devices handle this
 * a change to drop packets while disconnecting from
   an AP instead of trying to wait for them
 * a new attempt at improving the tailroom accounting
   to not kick in too much for performance reasons
 * improvements in wireless link statistics
 * many other small improvements and small fixes that
   didn't seem necessary for 3.19 (e.g. in hwsim which
   is testing only code)

Conflicts:
	drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c

Minor overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 19:16:56 -05:00
Eric Dumazet
5055c371bf ipv4: per cpu uncached list
RAW sockets with hdrinc suffer from contention on rt_uncached_lock
spinlock.

One solution is to use percpu lists, since most routes are destroyed
by the cpu that created them.

It is unclear why we even have to put these routes in uncached_list,
as all outgoing packets should be freed when a device is dismantled.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: caacf05e5a ("ipv4: Properly purge netdev references on uncached routes.")
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 18:26:16 -05:00
Marcel Holtmann
2b8df32395 Bluetooth: Add paranoid check for existing LE and BR/EDR SMP channels
When the SMP channels have been already registered, then print out a
clear WARN_ON message that something went wrong. Also unregister the
existing channels in this case before trying to register new ones.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-15 21:59:38 +02:00
Nicolas Dichtel
7eb35b1483 socket: use iov_length()
Better to use available helpers.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 13:56:15 -05:00
Johan Hedberg
327a71910c Bluetooth: Fix lookup of fixed channels by local bdaddr
The comparing of chan->src should always be done against the local
identity address, represented by hcon->src and hcon->src_type. This
patch modifies l2cap_global_fixed_chan() to take the full hci_conn so
that we can easily compare against hcon->src and hcon->src_type.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-15 16:54:14 +01:00
Johan Hedberg
a250e048a7 Bluetooth: Add helpers for src/dst bdaddr type conversion
The current bdaddr_type() usage in l2cap_core.c is a bit funny in that
it's always passed a hci_conn + a hci_conn member. Because of this only
the hci_conn is really needed. Since the second parameter is always
either hcon->src_type or hcon->dst type this patch adds two helper
functions for each purpose: bdaddr_src_type() and bdaddr_dst_type().

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-15 16:54:14 +01:00
Marcel Holtmann
162a3bac8d Bluetooth: Bind the SMP channel registration to management power state
When the controller gets powered on via the management interface, then
register the supported SMP channels. There is no point in registering
these channels earlier since it is not know what identity address the
controller is going to operate with.

When powering down a controller unregister all SMP channels. This is
required since a powered down controller is allowed to change its
identity address.

In addition the SMP channels are only available when the controller
is powered via the management interface. When using legacy ioctl, then
Bluetooth Low Energy is not supported and registering kernel side SMP
integration may actually cause confusion.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-15 12:54:31 +02:00
Marcel Holtmann
7e7ec44564 Bluetooth: Don't register any SMP channel if LE is not supported
When LE features are not supported, then do not bother registering any
kind of SMP channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-15 12:54:30 +02:00
Marcel Holtmann
157029ba30 Bluetooth: Fix LE SMP channel source address and source address type
The source address and source address type of the LE SMP channel can
either be the public address of the controller or the static random
address configured by the host.

Right now the public address is used for the LE SMP channel and
obviously that is not correct if the controller operates with the
configured static random address.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-15 12:54:30 +02:00
Marcel Holtmann
111e4bccd1 Bluetooth: Fix issue with switching BR/EDR back on when disabled
For dual-mode controllers it is possible to disable BR/EDR and operate
as LE single mode controllers with a static random address. If that is
the case, then refuse switching BR/EDR back on after the controller has
been powered.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-15 10:27:47 +02:00
Marcel Holtmann
eeb5a067d1 Bluetooth: Show device address type for L2CAP debugfs entries
The devices address types are BR/EDR Public, LE Public and LE Random and
any of these three is valid for L2CAP connections. So show the correct
type in the debugfs list.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-15 10:23:47 +02:00
David S. Miller
4e7a84b1a5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
netfilter updates for net-next

The following patchset contains netfilter updates for net-next, just a
bunch of cleanups and small enhancement to selectively flush conntracks
in ctnetlink, more specifically the patches are:

1) Rise default number of buckets in conntrack from 16384 to 65536 in
   systems with >= 4GBytes, patch from Marcelo Leitner.

2) Small refactor to save one level on indentation in xt_osf, from
   Joe Perches.

3) Remove unnecessary sizeof(char) in nf_log, from Fabian Frederick.

4) Another small cleanup to remove redundant variable in nfnetlink,
   from Duan Jiong.

5) Fix compilation warning in nfnetlink_cthelper on parisc, from
   Chen Gang.

6) Fix wrong format in debugging for ctseqadj, from Gao feng.

7) Selective conntrack flushing through the mark for ctnetlink, patch
   from Kristian Evensen.

8) Remove nf_ct_conntrack_flush_report() exported symbol now that is
   not required anymore after the selective flushing patch, again from
   Kristian.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 01:50:25 -05:00
Thomas Graf
1dd144cf5b openvswitch: Support VXLAN Group Policy extension
Introduces support for the group policy extension to the VXLAN virtual
port. The extension is disabled by default and only enabled if the user
has provided the respective configuration.

  ovs-vsctl add-port br0 vxlan0 -- \
     set Interface vxlan0 type=vxlan options:exts=gbp

The configuration interface to enable the extension is based on a new
attribute OVS_VXLAN_EXT_GBP nested inside OVS_TUNNEL_ATTR_EXTENSION
which can carry additional extensions as needed in the future.

The group policy metadata is stored as binary blob (struct ovs_vxlan_opts)
internally just like Geneve options but transported as nested Netlink
attributes to user space.

Renames the existing TUNNEL_OPTIONS_PRESENT to TUNNEL_GENEVE_OPT with the
binary value kept intact, a new flag TUNNEL_VXLAN_OPT is introduced.

The attributes OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS and existing
OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS are implemented mutually exclusive.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 01:11:41 -05:00
Thomas Graf
81bfe3c3cf openvswitch: Allow for any level of nesting in flow attributes
nlattr_set() is currently hardcoded to two levels of nesting. This change
introduces struct ovs_len_tbl to define minimal length requirements plus
next level nesting tables to traverse the key attributes to arbitrary depth.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 01:11:41 -05:00
Thomas Graf
d91641d9b5 openvswitch: Rename GENEVE_TUN_OPTS() to TUN_METADATA_OPTS()
Also factors out Geneve validation code into a new separate function
validate_and_copy_geneve_opts().

A subsequent patch will introduce VXLAN options. Rename the existing
GENEVE_TUN_OPTS() to reflect its extended purpose of carrying generic
tunnel metadata options.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 01:11:41 -05:00
Thomas Graf
3511494ce2 vxlan: Group Policy extension
Implements supports for the Group Policy VXLAN extension [0] to provide
a lightweight and simple security label mechanism across network peers
based on VXLAN. The security context and associated metadata is mapped
to/from skb->mark. This allows further mapping to a SELinux context
using SECMARK, to implement ACLs directly with nftables, iptables, OVS,
tc, etc.

The group membership is defined by the lower 16 bits of skb->mark, the
upper 16 bits are used for flags.

SELinux allows to manage label to secure local resources. However,
distributed applications require ACLs to implemented across hosts. This
is typically achieved by matching on L2-L4 fields to identify the
original sending host and process on the receiver. On top of that,
netlabel and specifically CIPSO [1] allow to map security contexts to
universal labels.  However, netlabel and CIPSO are relatively complex.
This patch provides a lightweight alternative for overlay network
environments with a trusted underlay. No additional control protocol
is required.

           Host 1:                       Host 2:

      Group A        Group B        Group B     Group A
      +-----+   +-------------+    +-------+   +-----+
      | lxc |   | SELinux CTX |    | httpd |   | VM  |
      +--+--+   +--+----------+    +---+---+   +--+--+
	  \---+---/                     \----+---/
	      |                              |
	  +---+---+                      +---+---+
	  | vxlan |                      | vxlan |
	  +---+---+                      +---+---+
	      +------------------------------+

Backwards compatibility:
A VXLAN-GBP socket can receive standard VXLAN frames and will assign
the default group 0x0000 to such frames. A Linux VXLAN socket will
drop VXLAN-GBP  frames. The extension is therefore disabled by default
and needs to be specifically enabled:

   ip link add [...] type vxlan [...] gbp

In a mixed environment with VXLAN and VXLAN-GBP sockets, the GBP socket
must run on a separate port number.

Examples:
 iptables:
  host1# iptables -I OUTPUT -m owner --uid-owner 101 -j MARK --set-mark 0x200
  host2# iptables -I INPUT -m mark --mark 0x200 -j DROP

 OVS:
  # ovs-ofctl add-flow br0 'in_port=1,actions=load:0x200->NXM_NX_TUN_GBP_ID[],NORMAL'
  # ovs-ofctl add-flow br0 'in_port=2,tun_gbp_id=0x200,actions=drop'

[0] https://tools.ietf.org/html/draft-smith-vxlan-group-policy
[1] http://lwn.net/Articles/204905/

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 01:11:41 -05:00
David S. Miller
3f3558bb51 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/xen-netfront.c

Minor overlapping changes in xen-netfront.c, mostly to do
with some buffer management changes alongside the split
of stats into TX and RX.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 00:53:17 -05:00
Linus Torvalds
a6391a924c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Don't use uninitialized data in IPVS, from Dan Carpenter.

 2) conntrack race fixes from Pablo Neira Ayuso.

 3) Fix TX hangs with i40e, from Jesse Brandeburg.

 4) Fix budget return from poll calls in dnet and alx, from Eric
    Dumazet.

 5) Fix bugus "if (unlikely(x) < 0)" test in AF_PACKET, from Christoph
    Jaeger.

 6) Fix bug introduced by conversion to list_head in TIPC retransmit
    code, from Jon Paul Maloy.

 7) Don't use GFP_NOIO under spinlock in USB kaweth driver, from Alexey
    Khoroshilov.

 8) Fix bridge build with INET disabled, from Arnd Bergmann.

 9) Fix netlink array overrun for PROBE attributes in openvswitch, from
    Thomas Graf.

10) Don't hold spinlock across synchronize_irq() in tg3 driver, from
    Prashant Sreedharan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
  tg3: Release tp->lock before invoking synchronize_irq()
  tg3: tg3_reset_task() needs to use rtnl_lock to synchronize
  tg3: tg3_timer() should grab tp->lock before checking for tp->irq_sync
  team: avoid possible underflow of count_pending value for notify_peers and mcast_rejoin
  openvswitch: packet messages need their own probe attribtue
  i40e: adds FCoE configure option
  cxgb4vf: Fix queue allocation for 40G adapter
  netdevice: Add missing parentheses in macro
  bridge: only provide proxy ARP when CONFIG_INET is enabled
  neighbour: fix base_reachable_time(_ms) not effective immediatly when changed
  net: fec: fix MDIO bus assignement for dual fec SoC's
  xen-netfront: use different locks for Rx and Tx stats
  drivers: net: cpsw: fix multicast flush in dual emac mode
  cxgb4vf: Initialize mdio_addr before using it
  net: Corrected the comment describing the ndo operations to reflect the actual prototype for couple of operations
  usb/kaweth: use GFP_ATOMIC under spin_lock in usb_start_wait_urb()
  MAINTAINERS: add me as ibmveth maintainer
  tipc: fix bug in broadcast retransmit code
  update ip-sysctl.txt documentation (v2)
  net/at91_ether: prepare and unprepare clock
  ...
2015-01-15 11:17:37 +13:00
Thomas Graf
1ba398041f openvswitch: packet messages need their own probe attribtue
User space is currently sending a OVS_FLOW_ATTR_PROBE for both flow
and packet messages. This leads to an out-of-bounds access in
ovs_packet_cmd_execute() because OVS_FLOW_ATTR_PROBE >
OVS_PACKET_ATTR_MAX.

Introduce a new OVS_PACKET_ATTR_PROBE with the same numeric value
as OVS_FLOW_ATTR_PROBE to grow the range of accepted packet attributes
while maintaining to be binary compatible with existing OVS binaries.

Fixes: 05da589 ("openvswitch: Add support for OVS_FLOW_ATTR_PROBE.")
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Tracked-down-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 16:49:44 -05:00
Jukka Rissanen
7b2ed60ed4 Bluetooth: 6lowpan: Remove PSM setting code
Removing PSM setting debugfs interface as the IPSP has a well
defined PSM value that should be used.

The patch introduces enable flag that can be used to toggle
6lowpan on/off.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-01-14 22:48:13 +01:00
Johan Hedberg
e12af489b9 Bluetooth: Fix valid Identity Address check
According to the Bluetooth core specification valid identity addresses
are either Public Device Addresses or Static Random Addresses. IRKs
received with any other type of address should be discarded since we
cannot assume to know the permanent identity of the peer device.

This patch fixes a missing check for the Identity Address when receiving
the Identity Address Information SMP PDU.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org # 3.17+
2015-01-14 22:48:06 +01:00
zhuyj
9a6b4b392d ipv6:icmp:remove unnecessary brackets
There are too many brackets. Maybe only one bracket is enough.

Signed-off-by: Zhu Yanjun <Yanjun.Zhu@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 16:35:49 -05:00
Fan Du
3f4c1d87af openvswitch: Introduce ovs_tunnel_route_lookup
Introduce ovs_tunnel_route_lookup to consolidate route lookup
shared by vxlan, gre, and geneve ports.

Signed-off-by: Fan Du <fan.du@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 16:32:06 -05:00
Tom Herbert
a2b12f3c7a udp: pass udp_offload struct to UDP gro callbacks
This patch introduces udp_offload_callbacks which has the same
GRO functions (but not a GSO function) as offload_callbacks,
except there is an argument to a udp_offload struct passed to
gro_receive and gro_complete functions. This additional argument
can be used to retrieve the per port structure of the encapsulation
for use in gro processing (mostly by doing container_of on the
structure).

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 15:20:04 -05:00
Arnd Bergmann
d92cfdbbea bridge: only provide proxy ARP when CONFIG_INET is enabled
When IPV4 support is disabled, we cannot call arp_send from
the bridge code, which would result in a kernel link error:

net/built-in.o: In function `br_handle_frame_finish':
:(.text+0x59914): undefined reference to `arp_send'
:(.text+0x59a50): undefined reference to `arp_tbl'

This makes the newly added proxy ARP support in the bridge
code depend on the CONFIG_INET symbol and lets the compiler
optimize the code out to avoid the link error.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 958501163d ("bridge: Add support for IEEE 802.11 Proxy ARP")
Cc: Kyeyoon Park <kyeyoonp@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 15:08:02 -05:00
Gowtham Anandha Babu
36c269cecf Bluetooth: Remove dead code
Variable 'controller' is assigned a value that is never used.
Identified by cppcheck tool.

Signed-off-by: Gowtham Anandha Babu <gowtham.ab@samsung.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-14 11:16:17 +02:00
Luciano Coelho
75453ccb61 nl80211: send netdetect configuration info in NL80211_CMD_GET_WOWLAN
Send the netdetect configuration information in the response to
NL8021_CMD_GET_WOWLAN commands.  This includes the scan interval,
SSIDs to match and frequencies to scan.

Additionally, add the NL80211_WOWLAN_TRIG_NET_DETECT with
NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:45:17 +01:00
Arik Nemtsov
ef51fb1d1c cfg80211: avoid reg-hints in self-managed only systems
When a system contains only self-managed regulatory devices all hints
from the regulatory core are ignored. Stop hint processing early in this
case. These systems usually don't have CRDA deployed, which results in
endless (irrelevent) logs of the form:
cfg80211: Calling CRDA to update world regulatory domain

Make sure there's at least one self-managed device before discarding a
hint, in order to prevent initial hints from disappearing on CRDA
managed systems.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:43:44 +01:00
Arik Nemtsov
2c3e861c94 cfg80211: introduce sync regdom set API for self-managed
A self-managed device will sometimes need to set its regdomain synchronously.
Notably it should be set before usermode has a chance to query it. Expose
a new API to accomplish this which requires the RTNL.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:43:44 +01:00
Eliad Peller
2726f23d2d mac80211: don't defer scans in case of radar detection
Radar detection can last indefinite time. There is no
point in deferring a scan request in this case - simply
return -EBUSY.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:37:07 +01:00
Eliad Peller
e7f2337ae7 mac80211: consider only relevant vifs for radar_required calculation
ctx->conf.radar_enabled should reflect whether radar
detection is enabled for the channel context.

When calculating it, make it consider only the vifs
that have this context assigned (instead of all the
vifs).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:37:06 +01:00
Eliad Peller
5cbc95a749 mac80211: remove local->radar_detect_enabled
local->radar_detect_enabled should tell whether
radar_detect is enabled on any interface belonging
to local.

However, it's not getting updated correctly
in many cases (actually, when testing with hwsim
it's never been set, even when the dfs master
is beaconing).

Instead of handling all the corner cases
(e.g. channel switch), simply check whether
radar detection is enabled only when needed,
instead of caching the result.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:37:06 +01:00
Arik Nemtsov
50075892ba mac80211: add TDLS supported channels correctly
The function adding the supported channels IE during a TDLS connection had
several issues:
1. If the entire subband is usable, the function exitted the loop without
   adding it
2. The function only checked chandef_usable, ignoring flags like RADAR
   which would prevent TDLS off-channel communcation.
3. HT20 was explicitly required in the chandef, while not a requirement
   for TDLS off-channel.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:34:33 +01:00
Emmanuel Grumbach
3b24f4c653 mac80211: let flush() drop packets when possible
When roaming / suspending, it makes no sense to wait until
the transmit queues of the device are empty. In extreme
condition they can be starved (VO saturating the air), but
even in regular cases, it is pointless to delay the roaming
because the low level driver is trying to send packets to
an AP which is far away. We'd rather drop these packets and
let TCP retransmit if needed. This will allow to speed up
the roaming.

For suspend, the explanation is even more trivial.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-14 09:31:18 +01:00
Marcel Holtmann
5ced24644b Bluetooth: Use %llu for printing duration details of selftests
The duration variable for the selftests is unsigned long long and with
that use %llu instead of %lld when printing the results.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-14 10:02:45 +02:00
Marcel Holtmann
36f260ceff Bluetooth: Move Delete Stored Link Key to 4th phase of initialization
This moves the execution of Delete Stored Link Key command to the
hci_init4_req phase. No actual code has been changed. The command
is just executed at a later stage of the initialization.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-01-14 10:02:21 +02:00
Jean-Francois Remy
4bf6980dd0 neighbour: fix base_reachable_time(_ms) not effective immediatly when changed
When setting base_reachable_time or base_reachable_time_ms on a
specific interface through sysctl or netlink, the reachable_time
value is not updated.

This means that neighbour entries will continue to be updated using the
old value until it is recomputed in neigh_period_work (which
    recomputes the value every 300*HZ).
On systems with HZ equal to 1000 for instance, it means 5mins before
the change is effective.

This patch changes this behavior by recomputing reachable_time after
each set on base_reachable_time or base_reachable_time_ms.
The new value will become effective the next time the neighbour's timer
is triggered.

Changes are made in two places: the netlink code for set and the sysctl
handling code. For sysctl, I use a proc_handler. The ipv6 network
code does provide its own handler but it already refreshes
reachable_time correctly so it's not an issue.
Any other user of neighbour which provide its own handlers must
refresh reachable_time.

Signed-off-by: Jean-Francois Remy <jeff@melix.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 00:28:00 -05:00
Jiri Pirko
df8a39defa net: rename vlan_tx_* helpers since "tx" is misleading there
The same macros are used for rx as well. So rename it.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-13 17:51:08 -05:00
Jiri Pirko
d8b9605d26 net: sched: fix skb->protocol use in case of accelerated vlan path
tc code implicitly considers skb->protocol even in case of accelerated
vlan paths and expects vlan protocol type here. However, on rx path,
if the vlan header was already stripped, skb->protocol contains value
of next header. Similar situation is on tx path.

So for skbs that use skb->vlan_tci for tagging, use skb->vlan_proto instead.

Reported-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-13 17:51:08 -05:00