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Commit Graph

2341 Commits

Author SHA1 Message Date
David S. Miller
1d34357931 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes, nothing serious.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12 22:34:48 -07:00
Jakub Kicinski
5cde05c61c nl80211: add missing attribute validation for channel switch
Add missing attribute validation for NL80211_ATTR_OPER_CLASS
to the netlink policy.

Fixes: 1057d35ede ("cfg80211: introduce TDLS channel switch commands")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20200303051058.4089398-4-kuba@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11 08:58:39 +01:00
Jakub Kicinski
056e9375e1 nl80211: add missing attribute validation for beacon report scanning
Add missing attribute validation for beacon report scanning
to the netlink policy.

Fixes: 1d76250bd3 ("nl80211: support beacon report scanning")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20200303051058.4089398-3-kuba@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11 08:58:31 +01:00
Jakub Kicinski
0e1a1d853e nl80211: add missing attribute validation for critical protocol indication
Add missing attribute validation for critical protocol fields
to the netlink policy.

Fixes: 5de1798489 ("cfg80211: introduce critical protocol indication from user-space")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20200303051058.4089398-2-kuba@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11 08:58:27 +01:00
David S. Miller
9f6e055907 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The mptcp conflict was overlapping additions.

The SMC conflict was an additional and removal happening at the same
time.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-27 18:31:39 -08:00
David S. Miller
3b3e808cd8 A new set of changes:
* lots of small documentation fixes, from Jérôme Pouiller
  * beacon protection (BIGTK) support from Jouni Malinen
  * some initial code for TID configuration, from Tamizh chelvam
  * I reverted some new API before it's actually used, because
    it's wrong to mix controlled port and preauth
  * a few other cleanups/fixes
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Merge tag 'mac80211-next-for-net-next-2020-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A new set of changes:
 * lots of small documentation fixes, from Jérôme Pouiller
 * beacon protection (BIGTK) support from Jouni Malinen
 * some initial code for TID configuration, from Tamizh chelvam
 * I reverted some new API before it's actually used, because
   it's wrong to mix controlled port and preauth
 * a few other cleanups/fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-24 15:41:54 -08:00
Tamizh chelvam
04f7d142f5 nl80211: Add support to configure TID specific RTSCTS configuration
This patch adds support to configure per TID RTSCTS control
configuration to enable/disable through the
NL80211_TID_CONFIG_ATTR_RTSCTS_CTRL attribute.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Link: https://lore.kernel.org/r/1579506687-18296-5-git-send-email-tamizhr@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 13:56:57 +01:00
Tamizh chelvam
ade274b23e nl80211: Add support to configure TID specific AMPDU configuration
This patch adds support to configure per TID AMPDU control
configuration to enable/disable aggregation through the
NL80211_TID_CONFIG_ATTR_AMPDU_CTRL attribute.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Link: https://lore.kernel.org/r/1579506687-18296-4-git-send-email-tamizhr@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 13:56:49 +01:00
Tamizh chelvam
6a21d16c4d nl80211: Add support to configure TID specific retry configuration
This patch adds support to configure per TID retry configuration
through the NL80211_TID_CONFIG_ATTR_RETRY_SHORT and
NL80211_TID_CONFIG_ATTR_RETRY_LONG attributes. This TID specific
retry configuration will have more precedence than phy level
configuration.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Link: https://lore.kernel.org/r/1579506687-18296-3-git-send-email-tamizhr@codeaurora.org
[rebase completely on top of my previous API changes]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 13:48:54 +01:00
Johannes Berg
3710a8a628 nl80211: modify TID-config API
Make some changes to the TID-config API:
 * use u16 in nl80211 (only, and restrict to using 8 bits for now),
   to avoid issues in the future if we ever want to use higher TIDs.
 * reject empty TIDs mask (via netlink policy)
 * change feature advertising to not use extended feature flags but
   have own mechanism for this, which simplifies the code
 * fix all variable names from 'tid' to 'tids' since it's a mask
 * change to cfg80211_ name prefixes, not ieee80211_
 * fix some minor docs/spelling things.

Change-Id: Ia234d464b3f914cdeab82f540e018855be580dce
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 12:01:10 +01:00
Tamizh chelvam
77f576deaa nl80211: Add NL command to support TID speicific configurations
Add the new NL80211_CMD_SET_TID_CONFIG command to support
data TID specific configuration. Per TID configuration is
passed in the nested NL80211_ATTR_TID_CONFIG attribute.

This patch adds support to configure per TID noack policy
through the NL80211_TID_CONFIG_ATTR_NOACK attribute.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
Link: https://lore.kernel.org/r/1579506687-18296-2-git-send-email-tamizhr@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 11:15:25 +01:00
Johannes Berg
e3ae39edbc nl80211: explicitly include if_vlan.h
We use that here, and do seem to get it through some recursive
include, but better include it explicitly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200224093814.1b9c258fec67.I45ac150d4e11c72eb263abec9f1f0c7add9bef2b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 10:41:13 +01:00
Jouni Malinen
56be393fa8 cfg80211: Support key configuration for Beacon protection (BIGTK)
IEEE P802.11-REVmd/D3.0 adds support for protecting Beacon frames using
a new set of keys (BIGTK; key index 6..7) similarly to the way
group-addressed Robust Management frames are protected (IGTK; key index
4..5). Extend cfg80211 and nl80211 to allow the new BIGTK to be
configured. Add an extended feature flag to indicate driver support for
the new key index values to avoid array overflows in driver
implementations and also to indicate to user space when this
functionality is available.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200222132548.20835-2-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 10:35:48 +01:00
Jouni Malinen
f8af764bf1 cfg80211: More error messages for key addition failures
These were helpful while working with extensions to NL80211_CMD_NEW_KEY,
so add more explicit error reporting for additional cases that can fail
while that command is being processed.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200222132548.20835-1-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 10:27:49 +01:00
Johannes Berg
8d74a623cc Revert "nl80211: add src and dst addr attributes for control port tx/rx"
This reverts commit 8c3ed7aa2b.

As Jouni points out, there's really no need for this, since the
RSN pre-authentication frames are normal data frames, not port
control frames (locally).

We can still revert this now since it hasn't actually gone beyond
-next.

Fixes: 8c3ed7aa2b ("nl80211: add src and dst addr attributes for control port tx/rx")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200224101910.b746e263287a.I9eb15d6895515179d50964dec3550c9dc784bb93@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-24 10:22:02 +01:00
Emmanuel Grumbach
7bb106eb68 cfg80211: remove support for adjacent channel compensation
The only driver that used that was iwlwifi and it removed
support for this. Remove the feature here as well.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200214232336.a530de38e511.I393bc395f6037c8cca6421ed550e3072dc248aed@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-21 20:00:39 +01:00
Amol Grover
3ee9306b35 cfg80211: Pass lockdep expression to RCU lists
rdev->sched_scan_req_list maybe traversed using list_for_each_entry_rcu
outside an RCU read-side critical section but under the protection
of rtnl_mutex.

Hence, add corresponding lockdep expression to silence false-positive
warnings, and harden RCU lists.

Signed-off-by: Amol Grover <frextrite@gmail.com>
Link: https://lore.kernel.org/r/20200219091102.10709-1-frextrite@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-21 12:11:30 +01:00
Johannes Berg
a7ee7d44b5 cfg80211: check reg_rule for NULL in handle_channel_custom()
We may end up with a NULL reg_rule after the loop in
handle_channel_custom() if the bandwidth didn't fit,
check if this is the case and bail out if so.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200221104449.3b558a50201c.I4ad3725c4dacaefd2d18d3cc65ba6d18acd5dbfe@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-21 10:59:27 +01:00
Johannes Berg
9951ebfcdf nl80211: fix potential leak in AP start
If nl80211_parse_he_obss_pd() fails, we leak the previously
allocated ACL memory. Free it in this case.

Fixes: 796e90f42b ("cfg80211: add support for parsing OBBS_PD attributes")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200221104142.835aba4cdd14.I1923b55ba9989c57e13978f91f40bfdc45e60cbd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-21 10:50:26 +01:00
Julian Wiedmann
2e92a2d0e4 net: use netif_is_bridge_port() to check for IFF_BRIDGE_PORT
Trivial cleanup, so that all bridge port-specific code can be found in
one go.

CC: Johannes Berg <johannes@sipsolutions.net>
CC: Roopa Prabhu <roopa@cumulusnetworks.com>
CC: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-20 10:10:32 -08:00
David S. Miller
ddb535a6a0 A few big new things:
* 802.11 frame encapsulation offload support
  * more HE (802.11ax) support, including some for 6 GHz band
  * powersave in hwsim, for better testing
 
 Of course as usual there are various cleanups and small fixes.
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Merge tag 'mac80211-next-for-net-next-2020-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A few big new things:
 * 802.11 frame encapsulation offload support
 * more HE (802.11ax) support, including some for 6 GHz band
 * powersave in hwsim, for better testing

Of course as usual there are various cleanups and small fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:00:22 -08:00
Sergey Matyukevich
ea75080110 cfg80211: add missing policy for NL80211_ATTR_STATUS_CODE
The nl80211_policy is missing for NL80211_ATTR_STATUS_CODE attribute.
As a result, for strictly validated commands, it's assumed to not be
supported.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20200213131608.10541-2-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-14 09:50:37 +01:00
Markus Theil
8c3ed7aa2b nl80211: add src and dst addr attributes for control port tx/rx
When using control port over nl80211 in AP mode with
pre-authentication, APs need to forward frames to other
APs defined by their MAC address. Before this patch,
pre-auth frames reaching user space over nl80211 control
port  have no longer any information about the dest attached,
which can be used for forwarding to a controller or injecting
the frame back to a ethernet interface over a AF_PACKET
socket.
Analog problems exist, when forwarding pre-auth frames from
AP -> STA.

This patch therefore adds the NL80211_ATTR_DST_MAC and
NL80211_ATTR_SRC_MAC attributes to provide more context
information when forwarding.
The respective arguments are optional on tx and included on rx.
Therefore unaware existing software is not affected.

Software which wants to detect this feature, can do so
by checking against:
  NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200115125522.3755-1-markus.theil@tu-ilmenau.de
[split into separate cfg80211/mac80211 patches]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-07 12:58:37 +01:00
Ilan Peer
ff74c51e8f cfg80211/mac80211: Allow user space to register for station Rx authentication
To support Pre Association Security Negotiation (PASN) while already
associated to one AP, allow user space to register to Rx
authentication frames, so that the user space logic would be able to
receive/handle authentication frames from a different AP as part of
PASN.

Note that it is expected that user space would intelligently register
for Rx authentication frames, i.e., only when PASN is used and
configure a match filter only for PASN authentication algorithm, as
otherwise the MLME functionality of mac80211 would be broken.

Additionally, since some versions of the user space daemons wrongly
register to all types of authentication frames (which might result in
unexpected behavior) allow such registration if the request is for a
specific authentication algorithm number.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131114529.894206-1-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-07 12:54:09 +01:00
Sergey Matyukevich
bfb7bac3a8 cfg80211: check wiphy driver existence for drvinfo report
When preparing ethtool drvinfo, check if wiphy driver is defined
before dereferencing it. Driver may not exist, e.g. if wiphy is
attached to a virtual platform device.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20200203105644.28875-1-sergey.matyukevich.os@quantenna.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-07 12:53:26 +01:00
Veerendranath Jakkam
d6039a3416 cfg80211: Enhance the AKM advertizement to support per interface.
Commit ab4dfa2053 ("cfg80211: Allow drivers to advertise supported AKM
suites") introduces the support to advertize supported AKMs to userspace.

This needs an enhancement to advertize the AKM support per interface type,
specifically for the cfg80211-based drivers that implement SME and use
different mechanisms to support the AKM's for each interface type (e.g.,
the support for SAE, OWE AKM's take different paths for such drivers on
STA/AP mode).

This commit aims the same and enhances the earlier mechanism of advertizing
the AKMs per wiphy. Add new nl80211 attributes and data structure to
provide supported AKMs per interface type to userspace.

the AKMs advertized in akm_suites are default capabilities if not
advertized for a specific interface type in iftype_akm_suites.

Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org>
Link: https://lore.kernel.org/r/20200126203032.21934-1-vjakkam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-07 12:34:26 +01:00
Haim Dreyfuss
1e61d82cca cfg80211: add no HE indication to the channel flag
The regulatory domain might forbid HE operation.  Certain regulatory
domains may restrict it for specific channels whereas others may do it
for the whole regulatory domain.

Add an option to indicate it in the channel flag.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200121081213.733757-1-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-02-07 12:34:09 +01:00
Linus Torvalds
bd2463ac7d Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:

 1) Add WireGuard

 2) Add HE and TWT support to ath11k driver, from John Crispin.

 3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.

 4) Add variable window congestion control to TIPC, from Jon Maloy.

 5) Add BCM84881 PHY driver, from Russell King.

 6) Start adding netlink support for ethtool operations, from Michal
    Kubecek.

 7) Add XDP drop and TX action support to ena driver, from Sameeh
    Jubran.

 8) Add new ipv4 route notifications so that mlxsw driver does not have
    to handle identical routes itself. From Ido Schimmel.

 9) Add BPF dynamic program extensions, from Alexei Starovoitov.

10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.

11) Add support for macsec HW offloading, from Antoine Tenart.

12) Add initial support for MPTCP protocol, from Christoph Paasch,
    Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.

13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
    Cherian, and others.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
  net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
  udp: segment looped gso packets correctly
  netem: change mailing list
  qed: FW 8.42.2.0 debug features
  qed: rt init valid initialization changed
  qed: Debug feature: ilt and mdump
  qed: FW 8.42.2.0 Add fw overlay feature
  qed: FW 8.42.2.0 HSI changes
  qed: FW 8.42.2.0 iscsi/fcoe changes
  qed: Add abstraction for different hsi values per chip
  qed: FW 8.42.2.0 Additional ll2 type
  qed: Use dmae to write to widebus registers in fw_funcs
  qed: FW 8.42.2.0 Parser offsets modified
  qed: FW 8.42.2.0 Queue Manager changes
  qed: FW 8.42.2.0 Expose new registers and change windows
  qed: FW 8.42.2.0 Internal ram offsets modifications
  MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
  Documentation: net: octeontx2: Add RVU HW and drivers overview
  octeontx2-pf: ethtool RSS config support
  octeontx2-pf: Add basic ethtool support
  ...
2020-01-28 16:02:33 -08:00
Ingo Molnar
cb6c82df68 Linux 5.5-rc7
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Merge tag 'v5.5-rc7' into perf/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-01-20 08:43:44 +01:00
David S. Miller
b3f7e3f23a Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
John Crispin
5c5e52d1bb nl80211: add handling for BSS color
This patch adds the attributes, policy and parsing code to allow userland
to send the info about the BSS coloring settings to the kernel.

Signed-off-by: John Crispin <john@phrozen.org>
Link: https://lore.kernel.org/r/20191217141921.8114-1-john@phrozen.org
[johannes: remove the strict policy parsing, that was a misunderstanding]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 11:14:24 +01:00
Felix Fietkau
81c044fc3b cfg80211: fix page refcount issue in A-MSDU decap
The fragments attached to a skb can be part of a compound page. In that case,
page_ref_inc will increment the refcount for the wrong page. Fix this by
using get_page instead, which calls page_ref_inc on the compound head and
also checks for overflow.

Fixes: 2b67f944f8 ("cfg80211: reuse existing page fragments in A-MSDU rx")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200113182107.20461-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:53:35 +01:00
Johannes Berg
24953de0a5 cfg80211: check for set_wiphy_params
Check if set_wiphy_params is assigned and return an error if not,
some drivers (e.g. virt_wifi where syzbot reported it) don't have
it.

Reported-by: syzbot+e8a797964a4180eb57d5@syzkaller.appspotmail.com
Reported-by: syzbot+34b582cf32c1db008f8e@syzkaller.appspotmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200113125358.ac07f276efff.Ibd85ee1b12e47b9efb00a2adc5cd3fac50da791a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:53:24 +01:00
Felix Fietkau
df16737d43 cfg80211: fix memory leak in cfg80211_cqm_rssi_update
The per-tid statistics need to be released after the call to rdev_get_station

Cc: stable@vger.kernel.org
Fixes: 8689c051a2 ("cfg80211: dynamically allocate per-tid stats for station info")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200108170630.33680-2-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:53:12 +01:00
Felix Fietkau
2a279b3416 cfg80211: fix memory leak in nl80211_probe_mesh_link
The per-tid statistics need to be released after the call to rdev_get_station

Cc: stable@vger.kernel.org
Fixes: 5ab92e7fe4 ("cfg80211: add support to probe unexercised mesh link")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20200108170630.33680-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:53:02 +01:00
Markus Theil
5a128a088a cfg80211: fix deadlocks in autodisconnect work
Use methods which do not try to acquire the wdev lock themselves.

Cc: stable@vger.kernel.org
Fixes: 37b1c00468 ("cfg80211: Support all iftypes in autodisconnect_wk")
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20200108115536.2262-1-markus.theil@tu-ilmenau.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:52:49 +01:00
Arnd Bergmann
e16119655c wireless: wext: avoid gcc -O3 warning
After the introduction of CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3,
the wext code produces a bogus warning:

In function 'iw_handler_get_iwstats',
    inlined from 'ioctl_standard_call' at net/wireless/wext-core.c:1015:9,
    inlined from 'wireless_process_ioctl' at net/wireless/wext-core.c:935:10,
    inlined from 'wext_ioctl_dispatch.part.8' at net/wireless/wext-core.c:986:8,
    inlined from 'wext_handle_ioctl':
net/wireless/wext-core.c:671:3: error: argument 1 null where non-null expected [-Werror=nonnull]
   memcpy(extra, stats, sizeof(struct iw_statistics));
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/x86/include/asm/string.h:5,
net/wireless/wext-core.c: In function 'wext_handle_ioctl':
arch/x86/include/asm/string_64.h:14:14: note: in a call to function 'memcpy' declared here

The problem is that ioctl_standard_call() sometimes calls the handler
with a NULL argument that would cause a problem for iw_handler_get_iwstats.
However, iw_handler_get_iwstats never actually gets called that way.

Marking that function as noinline avoids the warning and leads
to slightly smaller object code as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200107200741.3588770-1-arnd@arndb.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:52:20 +01:00
Orr Mazor
26ec17a1dc cfg80211: Fix radar event during another phy CAC
In case a radar event of CAC_FINISHED or RADAR_DETECTED
happens during another phy is during CAC we might need
to cancel that CAC.

If we got a radar in a channel that another phy is now
doing CAC on then the CAC should be canceled there.

If, for example, 2 phys doing CAC on the same channels,
or on comptable channels, once on of them will finish his
CAC the other might need to cancel his CAC, since it is no
longer relevant.

To fix that the commit adds an callback and implement it in
mac80211 to end CAC.
This commit also adds a call to said callback if after a radar
event we see the CAC is no longer relevant

Signed-off-by: Orr Mazor <Orr.Mazor@tandemg.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Link: https://lore.kernel.org/r/20191222145449.15792-1-Orr.Mazor@tandemg.com
[slightly reformat/reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:50:48 +01:00
Ganapathi Bhat
c4b9d655e4 wireless: fix enabling channel 12 for custom regulatory domain
Commit e33e2241e2 ("Revert "cfg80211: Use 5MHz bandwidth by
default when checking usable channels"") fixed a broken
regulatory (leaving channel 12 open for AP where not permitted).
Apply a similar fix to custom regulatory domain processing.

Signed-off-by: Cathy Luo <xiaohua.luo@nxp.com>
Signed-off-by: Ganapathi Bhat <ganapathi.bhat@nxp.com>
Link: https://lore.kernel.org/r/1576836859-8945-1-git-send-email-ganapathi.bhat@nxp.com
[reword commit message, fix coding style, add a comment]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-01-15 09:47:52 +01:00
Ingo Molnar
46f5cfc13d Merge branch 'core/kprobes' into perf/core, to pick up a completed branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-12-25 10:43:08 +01:00
David S. Miller
ac80010fc9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Mere overlapping changes in the conflicts here.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-22 15:15:05 -08:00
Stefan Bühler
56cb31e185 cfg80211: fix double-free after changing network namespace
If wdev->wext.keys was initialized it didn't get reset to NULL on
unregister (and it doesn't get set in cfg80211_init_wdev either), but
wdev is reused if unregister was triggered through
cfg80211_switch_netns.

The next unregister (for whatever reason) will try to free
wdev->wext.keys again.

Signed-off-by: Stefan Bühler <source@stbuehler.de>
Link: https://lore.kernel.org/r/20191126100543.782023-1-stefan.buehler@tik.uni-stuttgart.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-12-13 10:08:09 +01:00
Michal Kubecek
32d5109a9d netlink: rename nl80211_validate_nested() to nla_validate_nested()
Function nl80211_validate_nested() is not specific to nl80211, it's
a counterpart to nla_validate_nested_deprecated() with strict validation.
For consistency with other validation and parse functions, rename it to
nla_validate_nested().

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-12-12 17:07:05 -08:00
Peter Zijlstra
04ae87a520 ftrace: Rework event_create_dir()
Rework event_create_dir() to use an array of static data instead of
function pointers where possible.

The problem is that it would call the function pointer on module load
before parse_args(), possibly even before jump_labels were initialized.
Luckily the generated functions don't use jump_labels but it still seems
fragile. It also gets in the way of changing when we make the module map
executable.

The generated function are basically calling trace_define_field() with a
bunch of static arguments. So instead of a function, capture these
arguments in a static array, avoiding the function call.

Now there are a number of cases where the fields are dynamic (syscall
arguments, kprobes and uprobes), in which case a static array does not
work, for these we preserve the function call. Luckily all these cases
are not related to modules and so we can retain the function call for
them.

Also fix up all broken tracepoint definitions that now generate a
compile error.

Tested-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191111132458.342979914@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-11-27 07:44:25 +01:00
David S. Miller
5bd2ce6aa5 Some relatively small changes:
* typo fixes in docs
  * APIs for station separation using VLAN tags rather
    than separate wifi netdevs
  * some preparations for upcoming features (802.3 offload
    and airtime queue limits (AQL)
  * stack reduction in ieee80211_assoc_success()
  * use DEFINE_DEBUGFS_ATTRIBUTE in hwsim
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Merge tag 'mac80211-next-for-net-next-2019-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Some relatively small changes:
 * typo fixes in docs
 * APIs for station separation using VLAN tags rather
   than separate wifi netdevs
 * some preparations for upcoming features (802.3 offload
   and airtime queue limits (AQL)
 * stack reduction in ieee80211_assoc_success()
 * use DEFINE_DEBUGFS_ATTRIBUTE in hwsim
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-08 11:36:48 -08:00
Gurumoorthi Gnanasambandhan
14f34e36b3 cfg80211: VLAN offload support for set_key and set_sta_vlan
This provides an alternative mechanism for AP VLAN support where a
single netdev is used with VLAN tagged frames instead of separate
netdevs for each VLAN without tagged frames from the WLAN driver.

By setting NL80211_EXT_FEATURE_VLAN_OFFLOAD flag the driver indicates
support for a single netdev with VLAN tagged frames. Separate
VLAN-specific netdevs can be added using RTM_NEWLINK/IFLA_VLAN_ID
similarly to Ethernet. NL80211_CMD_NEW_KEY (for group keys),
NL80211_CMD_NEW_STATION, and NL80211_CMD_SET_STATION will optionally
specify vlan_id using NL80211_ATTR_VLAN_ID.

Signed-off-by: Gurumoorthi Gnanasambandhan <gguru@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20191031214640.5012-1-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-11-08 11:19:19 +01:00
David S. Miller
d31e95585c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The only slightly tricky merge conflict was the netdevsim because the
mutex locking fix overlapped a lot of driver reload reorganization.

The rest were (relatively) trivial in nature.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-02 13:54:56 -07:00
Markus Theil
1fab1b89e2 nl80211: fix validation of mesh path nexthop
Mesh path nexthop should be a ethernet address, but current validation
checks against 4 byte integers.

Cc: stable@vger.kernel.org
Fixes: 2ec600d672 ("nl80211/cfg80211: support for mesh, sta dumping")
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20191029093003.10355-1-markus.theil@tu-ilmenau.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-30 10:11:18 +01:00
Masashi Honma
ec649fed66 nl80211: Disallow setting of HT for channel 14
This patch disables setting of HT20 and more for channel 14 because
the channel is only for IEEE 802.11b.

The patch for net/wireless/util.c was unit-tested.

The patch for net/wireless/chan.c was tested with iw command.

Before this patch.
$ sudo iw dev <ifname> set channel 14 HT20
$

After this patch.
$ sudo iw dev <ifname> set channel 14 HT20
kernel reports: invalid channel definition
command failed: Invalid argument (-22)
$

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Link: https://lore.kernel.org/r/20191021075045.2719-1-masashi.honma@gmail.com
[clean up the code, use != instead of equivalent >]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-10-30 10:07:22 +01:00
Geert Uytterhoeven
e1b185491f net: Fix various misspellings of "connect"
Fix misspellings of "disconnect", "disconnecting", "connections", and
"disconnected".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-28 13:41:59 -07:00