Commit Graph

37075 Commits

Author SHA1 Message Date
Florian Westphal
c737b7c451 netfilter: bridge: add helpers for fetching physin/outdev
right now we store this in the nf_bridge_info struct, accessible
via skb->nf_bridge.  This patch prepares removal of this pointer from skb:

Instead of using skb->nf_bridge->x, we use helpers to obtain the in/out
device (or ifindexes).

Followup patches to netfilter will then allow nf_bridge_info to be
obtained by a call into the br_netfilter core, rather than keeping a
pointer to it in sk_buff.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-08 16:49:08 +02:00
Florian Westphal
e70deecbf8 netfilter: bridge: don't use nf_bridge_info data to store mac header
br_netfilter maintains an extra state, nf_bridge_info, which is attached
to skb via skb->nf_bridge pointer.

Amongst other things we use skb->nf_bridge->data to store the original
mac header for every processed skb.

This is required for ip refragmentation when using conntrack
on top of bridge, because ip_fragment doesn't copy it from original skb.

However there is no need anymore to do this unconditionally.

Move this to the one place where its needed -- when br_netfilter calls
ip_fragment().

Also switch to percpu storage for this so we can handle fragmenting
without accessing nf_bridge meta data.

Only user left is neigh resolution when DNAT is detected, to hold
the original source mac address (neigh resolution builds new mac header
using bridge mac), so rename ->data and reduce its size to whats needed.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-08 16:49:07 +02:00
Daniel Borkmann
d64d80a2cd netfilter: x_tables: don't extract flow keys on early demuxed sks in socket match
Currently in xt_socket, we take advantage of early demuxed sockets
since commit 00028aa370 ("netfilter: xt_socket: use IP early demux")
in order to avoid a second socket lookup in the fast path, but we
only make partial use of this:

We still unnecessarily parse headers, extract proto, {s,d}addr and
{s,d}ports from the skb data, accessing possible conntrack information,
etc even though we were not even calling into the socket lookup via
xt_socket_get_sock_{v4,v6}() due to skb->sk hit, meaning those cycles
can be spared.

After this patch, we only proceed the slower, manual lookup path
when we have a skb->sk miss, thus time to match verdict for early
demuxed sockets will improve further, which might be i.e. interesting
for use cases such as mentioned in 681f130f39 ("netfilter: xt_socket:
add XT_SOCKET_NOWILDCARD flag").

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-08 16:47:49 +02:00
Florian Westphal
0b67c43ce3 netfilter: bridge: really save frag_max_size between PRE and POST_ROUTING
We also need to save/store in forward, else br_parse_ip_options call
will zero frag_max_size as well.

Fixes: 93fdd47e5 ('bridge: Save frag_max_size between PRE_ROUTING and POST_ROUTING')
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-02 10:41:14 +02:00
Pablo Neira Ayuso
c5035c77f8 netfilter: nft_meta: fix cgroup matching
We have to stop iterating on the rule expressions if the cgroup
mismatches. Moreover, make sure a non-full socket from the input path
leads us to a crash.

Fixes: ce67417 ("netfilter: nft_meta: add cgroup support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:33:00 +02:00
Daniel Borkmann
afb7718016 netfilter: x_tables: fix cgroup matching on non-full sks
While originally only being intended for outgoing traffic, commit
a00e76349f ("netfilter: x_tables: allow to use cgroup match for
LOCAL_IN nf hooks") enabled xt_cgroups for the NF_INET_LOCAL_IN hook
as well, in order to allow for nfacct accounting.

Besides being currently limited to early demuxes only, commit
a00e76349f forgot to add a check if we deal with full sockets,
i.e. in this case not with time wait sockets. TCP time wait sockets
do not have the same memory layout as full sockets, a lower memory
footprint and consequently also don't have a sk_classid member;
probing for sk_classid member there could potentially lead to a
crash.

Fixes: a00e76349f ("netfilter: x_tables: allow to use cgroup match for LOCAL_IN nf hooks")
Cc: Alexey Perevalov <a.perevalov@samsung.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:26:42 +02:00
Patrick McHardy
9d0982927e netfilter: nft_hash: add support for timeouts
Add support for element timeouts to nft_hash. The lookup and walking
functions are changed to ignore timed out elements, a periodic garbage
collection task cleans out expired entries.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:17:49 +02:00
Patrick McHardy
6908665826 netfilter: nf_tables: add GC synchronization helpers
GC is expected to happen asynchrously to the netlink interface. In the
netlink path, both insertion and removal of elements consist of two
steps, insertion followed by activation or deactivation followed by
removal, during which the element must not be freed by GC.

The synchronization helpers use an unused bit in the genmask field to
atomically mark an element as "busy", meaning it is either currently
being handled through the netlink API or by GC.

Elements being processed by GC will never survive, netlink will simply
ignore them. Elements being currently processed through netlink will be
skipped by GC and reprocessed during the next run.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:17:29 +02:00
Patrick McHardy
cfed7e1b1f netfilter: nf_tables: add set garbage collection helpers
Add helpers for GC batch destruction: since element destruction needs
a RCU grace period for all set implementations, add some helper functions
for asynchronous batch destruction. Elements are collected in a batch
structure, which is asynchronously released using RCU once its full.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:17:29 +02:00
Patrick McHardy
c3e1b005ed netfilter: nf_tables: add set element timeout support
Add API support for set element timeouts. Elements can have a individual
timeout value specified, overriding the sets' default.

Two new extension types are used for timeouts - the timeout value and
the expiration time. The timeout value only exists if it differs from
the default value.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:17:28 +02:00
Patrick McHardy
761da2935d netfilter: nf_tables: add set timeout API support
Add set timeout support to the netlink API. Sets with timeout support
enabled can have a default timeout value and garbage collection interval
specified.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-01 11:17:28 +02:00
David S. Miller
7b6249bba9 Lots of updates for net-next; along with the usual flurry
of small fixes, cleanups and internal features we have:
  * VHT support for TDLS and IBSS (conditional on drivers though)
  * first TX performance improvements (the biggest will come later)
  * many suspend/resume (race) fixes
  * name_assign_type support from Tom Gundersen
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Merge tag 'mac80211-next-for-davem-2015-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Lots of updates for net-next; along with the usual flurry
of small fixes, cleanups and internal features we have:
 * VHT support for TDLS and IBSS (conditional on drivers though)
 * first TX performance improvements (the biggest will come later)
 * many suspend/resume (race) fixes
 * name_assign_type support from Tom Gundersen
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 16:39:04 -04:00
Jiri Pirko
fbcb217059 net: rename dev to orig_dev in deliver_ptype_list_skb
Unlike other places, this function uses name "dev" for what should be
"orig_dev", which might be a bit confusing. So fix this.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 16:37:43 -04:00
Jiri Benc
67b61f6c13 netlink: implement nla_get_in_addr and nla_get_in6_addr
Those are counterparts to nla_put_in_addr and nla_put_in6_addr.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:58:35 -04:00
Jiri Benc
930345ea63 netlink: implement nla_put_in_addr and nla_put_in6_addr
IP addresses are often stored in netlink attributes. Add generic functions
to do that.

For nla_put_in_addr, it would be nicer to pass struct in_addr but this is
not used universally throughout the kernel, in way too many places __be32 is
used to store IPv4 address.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:58:35 -04:00
Jiri Benc
15e318bdc6 xfrm: simplify xfrm_address_t use
In many places, the a6 field is typecasted to struct in6_addr. As the
fields are in union anyway, just add in6_addr type to the union and
get rid of the typecasting.

Modifying the uapi header is okay, the union has still the same size.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:58:35 -04:00
Jiri Benc
8f55db4860 tcp: simplify inetpeer_addr_base use
In many places, the a6 field is typecasted to struct in6_addr. As the
fields are in union anyway, just add in6_addr type to the union and get rid
of the typecasting.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:58:35 -04:00
Ian Morris
53b24b8f94 ipv6: coding style: comparison for inequality with NULL
The ipv6 code uses a mixture of coding styles. In some instances check for NULL
pointer is done as x != NULL and sometimes as x. x is preferred according to
checkpatch and this patch makes the code consistent by adopting the latter
form.

No changes detected by objdiff.

Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:51:54 -04:00
Ian Morris
63159f29be ipv6: coding style: comparison for equality with NULL
The ipv6 code uses a mixture of coding styles. In some instances check for NULL
pointer is done as x == NULL and sometimes as !x. !x is preferred according to
checkpatch and this patch makes the code consistent by adopting the latter
form.

No changes detected by objdiff.

Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:51:54 -04:00
Alexander Duyck
6e47d6caff fib_trie: Cleanup ip_fib_net_exit code path
While fixing a recent issue I noticed that we are doing some unnecessary
work inside the loop for ip_fib_net_exit.  As such I am pulling out the
initialization to NULL for the locally stored fib_local, fib_main, and
fib_default.

In addition I am restoring the original code for flushing the table as
there is no need to split up the fib_table_flush and hlist_del work since
the code for packing the tnodes with multiple key vectors was dropped.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:18:56 -04:00
Alexander Duyck
ad88d05136 fib_trie: Fix warning on fib4_rules_exit
This fixes the following warning:

 BUG: sleeping function called from invalid context at mm/slub.c:1268
 in_atomic(): 1, irqs_disabled(): 0, pid: 6, name: kworker/u8:0
 INFO: lockdep is turned off.
 CPU: 3 PID: 6 Comm: kworker/u8:0 Tainted: G        W       4.0.0-rc5+ #895
 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
 Workqueue: netns cleanup_net
  0000000000000006 ffff88011953fa68 ffffffff81a203b6 000000002c3a2c39
  ffff88011952a680 ffff88011953fa98 ffffffff8109daf0 ffff8801186c6aa8
  ffffffff81fbc9e5 00000000000004f4 0000000000000000 ffff88011953fac8
 Call Trace:
  [<ffffffff81a203b6>] dump_stack+0x4c/0x65
  [<ffffffff8109daf0>] ___might_sleep+0x1c3/0x1cb
  [<ffffffff8109db70>] __might_sleep+0x78/0x80
  [<ffffffff8117a60e>] slab_pre_alloc_hook+0x31/0x8f
  [<ffffffff8117d4f6>] __kmalloc+0x69/0x14e
  [<ffffffff818ed0e1>] ? kzalloc.constprop.20+0xe/0x10
  [<ffffffff818ed0e1>] kzalloc.constprop.20+0xe/0x10
  [<ffffffff818ef622>] fib_trie_table+0x27/0x8b
  [<ffffffff818ef6bd>] fib_trie_unmerge+0x37/0x2a6
  [<ffffffff810b06e1>] ? arch_local_irq_save+0x9/0xc
  [<ffffffff818e9793>] fib_unmerge+0x2d/0xb3
  [<ffffffff818f5f56>] fib4_rule_delete+0x1f/0x52
  [<ffffffff817f1c3f>] ? fib_rules_unregister+0x30/0xb2
  [<ffffffff817f1c8b>] fib_rules_unregister+0x7c/0xb2
  [<ffffffff818f64a1>] fib4_rules_exit+0x15/0x18
  [<ffffffff818e8c0a>] ip_fib_net_exit+0x23/0xf2
  [<ffffffff818e91f8>] fib_net_exit+0x32/0x36
  [<ffffffff817c8352>] ops_exit_list+0x45/0x57
  [<ffffffff817c8d3d>] cleanup_net+0x13c/0x1cd
  [<ffffffff8108b05d>] process_one_work+0x255/0x4ad
  [<ffffffff8108af69>] ? process_one_work+0x161/0x4ad
  [<ffffffff8108b4b1>] worker_thread+0x1cd/0x2ab
  [<ffffffff8108b2e4>] ? process_scheduled_works+0x2f/0x2f
  [<ffffffff81090686>] kthread+0xd4/0xdc
  [<ffffffff8109ec8f>] ? local_clock+0x19/0x22
  [<ffffffff810905b2>] ? __kthread_parkme+0x83/0x83
  [<ffffffff81a2c0c8>] ret_from_fork+0x58/0x90
  [<ffffffff810905b2>] ? __kthread_parkme+0x83/0x83

The issue was that as a part of exiting the default rules were being
deleted which resulted in the local trie being unmerged.  By moving the
freeing of the FIB tables up we can avoid the unmerge since there is no
local table left when we call the fib4_rules_exit function.

Fixes: 0ddcf43d5d ("ipv4: FIB Local/MAIN table collapse")
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:18:56 -04:00
David S. Miller
89a3f3c55b Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2015-03-27

Here's another set of Bluetooth & 802.15.4 patches for 4.1:

 - New API to control LE advertising data (i.e. peripheral role)
 - mac802154 & at86rf230 cleanups
 - Support for toggling quirks from debugfs (useful for testing)
 - Memory leak fix for LE scanning
 - Extra version info reading support for Broadcom controllers

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

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 12:45:58 -04:00
Johannes Berg
2c44be81f0 mac80211: set QoS capability before changing station state
In the upcoming fast-xmit patch, changing station state will
build a header cache based on the station's capabilities, and
as the QoS capability (sta.wme) impacts the header, it needs
to be set before.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 15:11:01 +02:00
Arik Nemtsov
070e176a75 mac80211: send HT/VHT IEs in TDLS discovery response
These are mandated by IEEE802.11-2012 section 8.5.8.6 and IEEE802.11ac-2013
section 8.5.8.16.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:48:59 +02:00
Janusz.Dziedzic@tieto.com
abcff6ef01 mac80211: add VHT support for IBSS
Add VHT support for IBSS. Drivers could activate
this feature by setting NL80211_EXT_FEATURE_VHT_IBSS
flag.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:48:26 +02:00
Janusz.Dziedzic@tieto.com
76bed0f43b mac80211: IBSS fix scan request
In case of wide bandwidth (wider than 20MHz) used by IBSS,
scan all channels in chandef to be able to find neighboring
IBSS netwqworks that use the same overall channels but a different
control channel.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:47:56 +02:00
Johannes Berg
97ffe75791 mac80211: factor out station lookup from ieee80211_build_hdr()
In order to look up the RA station earlier to implement a TX
fastpath, factor out the lookup from ieee80211_build_hdr().
To always have a valid station pointer, also move some of the
checks into the new function.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:47:19 +02:00
Johannes Berg
527871d720 mac80211: make sta.wme indicate whether QoS is used
Indicating just the peer's capability is fairly pointless
if the local device doesn't support it. Make the variable
track both combined, and remove the 'local support' check
in the TX path.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:47:16 +02:00
Johannes Berg
a73f8e21f3 mac80211: send AP probe as unicast again
Louis reported that a static checker was complaining that
the 'dst' variable was set (multiple times) but not used.
This is due to a previous commit having removed the usage
(apparently erroneously), so add it back.

Fixes: a344d6778a ("mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR")
Reported-by: Louis Langholtz <lou_langholtz@me.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:47:14 +02:00
Johannes Berg
07862e13e6 mac80111: aes_gcm: clean up ieee80211_aes_gcm_key_setup_encrypt()
This code is written using an anti-pattern called "success handling"
which makes it hard to read, especially if you are used to normal kernel
style.  It should instead be written as a list of directives in a row
with branches for error handling.

(Basically copied from Dan's previous patch for CCM)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:42:02 +02:00
Dan Carpenter
45fd63293a mac80111: aes_ccm: cleanup ieee80211_aes_key_setup_encrypt()
This code is written using an anti-pattern called "success handling"
which makes it hard to read, especially if you are used to normal kernel
style.  It should instead be written as a list of directives in a row
with branches for error handling.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:40:03 +02:00
Jouni Malinen
82ca6ef686 mac80211: Fix misplaced return in AES-GMAC key setup
Commit 8ade538bf3 ("mac80111: Add BIP-GMAC-128 and BIP-GMAC-256
ciphers") had the success return in incorrect place before the
crypto_aead_setauthsize() call which practically ended up skipping that
call unconditionally.

The missing call did not actually change any functionality since
GMAC_MIC_LEN (16) is identical to the maxauthsize in gcm(aes) and as
such, the default value used for the authsize parameter.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:38:07 +02:00
Tom Gundersen
6bab2e19c5 cfg80211: pass name_assign_type to rdev_add_virtual_intf()
This will expose in /sys whether the ifname of a device is set by
userspace or generated by the kernel. The latter kind (wlanX, etc)
is not deterministic, so userspace needs to rename these devices
to names that are guaranteed to stay the same between reboots. The
former, however should never be renamed, so userspace needs to be
able to reliably tell the difference.

Similar functionality was introduced for the rtnetlink core in
commit 5517750f05 ("net: rtnetlink - make create_link take name_assign_type")

Signed-off-by: Tom Gundersen <teg@jklm.no>
Cc: Kalle Valo <kvalo@qca.qualcomm.com>
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Arend van Spriel <arend@broadcom.com>
Cc: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Cc: Hante Meuleman <meuleman@broadcom.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
[reformat changelog to fit 72 cols]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:36:17 +02:00
Michael Braun
6a8b4adb47 mac80211: fix typo in debug output
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:34:13 +02:00
Johannes Berg
8f9c77fc1e mac80211: reject aggregation sessions with non-HT peers
If a peer or some local agent (rate control, ...) decides to start
an aggregation session but doesn't support HT (which also implies
QoS), reject it.

This is mostly a corner case as such peers normally won't try to
use block-ack sessions and rate control wouldn't start them, but
technically QoS stations could request it according to the spec.

However, since drivers don't really support such non-HT sessions
it's better to reject them.

Also, while at it, move the tracing for TX sessions earlier so it
captures the error cases as well.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:33:19 +02:00
Arik Nemtsov
a38700dd48 cfg/mac80211: add regulatory classes IE during TDLS setup
Seems Broadcom TDLS peers (Nexus 5, Xperia Z3) refuse to allow TDLS
connection when channel-switching is supported but the regulatory
classes IE is missing from the setup request.
Add a chandef to reg-class translation function to cfg80211 and use it
to add the required IE during setup. For now add only the current
regulatory class as supported - it is enough to resolve the
compatibility issue.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:26:36 +02:00
David Spinadel
7d830a1986 mac80211: stop scan before connection
Stop scan before authentication or association to make sure
that nothing interferes with connection flow.

Currently mac80211 defers RX auth and assoc packets (among other ones)
until after the scan is complete, so auth during scan is likely to fail
if scan took too much time.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:19:13 +02:00
Luciano Coelho
21fea56731 nl80211: add net-detect delay to wowlan info
Pass the initial net-detect delay (NL80211_ATTR_SCHED_SCAN_DELAY)
attribute in the WoWLAN info response.

Additionally, remove a bogus TODO comment.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:18:12 +02:00
Emmanuel Grumbach
a90faa9d64 mac80211: notify the driver about deauth
This can allow the driver to take action based on the reason
of the deauth.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:17:12 +02:00
Emmanuel Grumbach
d0d1a12f9c mac80211: notify the driver about association status
This can allow the driver to take action based on the
success / failure of the association.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:17:11 +02:00
Emmanuel Grumbach
a9409093d2 mac80211: notify the driver about authentication status
This can allow the driver to take action based on the
success / failure of the authentication.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:17:10 +02:00
Emmanuel Grumbach
a818292952 mac80211: convert rssi_callback() to event_callback()
We will be able to add more events, such as MLME events and
others. The low level driver may be interested in knowing
about these events to dump firmware data upon failures, or
to change parameters in case connection attempts fail etc...

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 10:17:09 +02:00
Johannes Berg
2c158887f1 mac80211: agg-tx: avoid sending DelBA with sta->lock held
The rate control locking caused a potential deadlock here due to the
locks being acquired in different orders, so that change cannot yet
be applied. However, there's no fundamental reason for this code to
hold the sta->lock while transmitting frames.

Clearly it's better not to hold the lock for longer periods of time,
which can happen here since we call all the way down to the driver.
Change the code a bit to not hold it while doing that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-03-30 09:46:52 +02:00
Jon Paul Maloy
d482994fca tipc: fix two bugs in secondary destination lookup
A message sent to a node after a successful name table lookup may still
find that the destination socket has disappeared, because distribution
of name table updates is non-atomic. If so, the message will be rejected
back to the sender with error code TIPC_ERR_NO_PORT. If the source
socket of the message has disappeared in the meantime, the message
should be dropped.

However, in the currrent code, the message will instead be subject to an
unwanted tertiary lookup, because the function tipc_msg_lookup_dest()
doesn't check if there is an error code present in the message before
performing the lookup. In the worst case, the message may now find the
old destination again, and be redirected once more, instead of being
dropped directly as it should be.

A second bug in this function is that the "prev_node" field in the message
is not updated after successful lookup, something that may have
unpredictable consequences.

The problems arising from those bugs occur very infrequently.

The third change in this function; the test on msg_reroute_msg_cnt() is
purely cosmetic, reflecting that the returned value never can be negative.

This commit corrects the two bugs described above.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:47:36 -07:00
Toshiaki Makita
e38f30256b net: Introduce passthru_features_check
As there are a number of (especially virtual) devices that don't
need the multiple vlan check, introduce passthru_features_check() for
convenience.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:33:22 -07:00
Toshiaki Makita
8cb65d0008 net: Move check for multiple vlans to drivers
To allow drivers to handle the features check for multiple tags,
move the check to ndo_features_check().
As no drivers currently handle multiple tagged TSO, introduce
dflt_features_check() and call it if the driver does not have
ndo_features_check().

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:33:22 -07:00
Toshiaki Makita
f5a7fb88e1 vlan: Introduce helper functions to check if skb is tagged
Separate the two checks for single vlan and multiple vlans in
netif_skb_features().  This allows us to move the check for multiple
vlans to another function later.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:33:22 -07:00
Toshiaki Makita
8d463504c1 vlan: Add features for stacked vlan device
Stacked vlan devices curretly have few features (GRO, HIGHDMA, LLTX).
Since we have software fallbacks in case the NIC can not handle some
features for multiple vlans, we can add the same features as the lower
vlan devices for stacked vlan devices.

This allows stacked vlan devices to create large (GSO) packets and not to
segment packets. Those packets will be segmented by software on the real
device, or even can be segmented by the NIC once TSO for multiple vlans
becomes enabled by the following patches.

The exception is those related to FCoE, which does not have a software
fallback.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:33:21 -07:00
Alexei Starovoitov
608cd71a9c tc: bpf: generalize pedit action
existing TC action 'pedit' can munge any bits of the packet.
Generalize it for use in bpf programs attached as cls_bpf and act_bpf via
bpf_skb_store_bytes() helper function.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:26:54 -07:00
Guenter Roeck
339d82626d net: dsa: Add basic framework to support ndo_fdb functions
Provide callbacks for ndo_fdb_add, ndo_fdb_del, and ndo_fdb_dump.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:23:54 -07:00