linux-toradex.git/net/wireless/core.c, branch v4.1.10

cfg80211: calls nl80211_exit on error

2015-02-24T10:41:21+00:00

nl80211_exit should be called in cfg80211_init if nl80211_init succeeds
but regulatory_init or create_singlethread_workqueue fails.

Signed-off-by: Junjie Mao 
Signed-off-by: Johannes Berg

Revert "wireless: Support of IFLA_INFO_KIND rtnl attribute"

2015-01-19T17:49:56+00:00

This reverts commit ba1debdfed974f25aa598c283567878657b292ee.

Oliver reported that it breaks network-manager, for some reason with
this patch NM decides that the device isn't wireless but "generic"
(ethernet), sees no carrier (as expected with wifi) and fails to do
anything else with it.

Revert this to unbreak userspace.

Reported-by: Oliver Hartkopp 
Tested-by: Oliver Hartkopp 
Signed-off-by: Johannes Berg

nl80211: Stop scheduled scan if netlink client disappears

2014-12-18T13:38:44+00:00

An attribute NL80211_ATTR_SOCKET_OWNER can be set by the scan initiator.
If present, the attribute will cause the scan to be stopped if the client
dies.

Signed-off-by: Jukka Rissanen 
Signed-off-by: Johannes Berg

nl80211: Convert sched_scan_req pointer to RCU pointer

2014-12-18T13:38:09+00:00

Because of possible races when accessing sched_scan_req pointer in
rdev, the sched_scan_req is converted to RCU pointer.

Signed-off-by: Jukka Rissanen 
Signed-off-by: Johannes Berg

cfg80211: allow wiphy specific regdomain management

2014-12-17T10:49:55+00:00

Add a new regulatory flag that allows a driver to manage regdomain
changes/updates for its own wiphy.
A self-managed wiphys only employs regulatory information obtained from
the FW and driver and does not use other cfg80211 sources like
beacon-hints, country-code IEs and hints from other devices on the same
system. Conversely, a self-managed wiphy does not share its regulatory
hints with other devices in the system. If a system contains several
devices, one or more of which are self-managed, there might be
contradictory regulatory settings between them. Usage of flag is
generally discouraged. Only use it if the FW/driver is incompatible
with non-locally originated hints.

A new API lets the driver send a complete regdomain, to be applied on
its wiphy only.

After a wiphy-specific regdomain change takes place, usermode will get
a new type of change notification. The regulatory core also takes care
enforce regulatory restrictions, in case some interfaces are on
forbidden channels.

Signed-off-by: Jonathan Doron 
Signed-off-by: Arik Nemtsov 
Reviewed-by: Luis R. Rodriguez 
Signed-off-by: Johannes Berg

wireless: Support of IFLA_INFO_KIND rtnl attribute

2014-12-12T12:48:25+00:00

It allows to identify the wlan kind of device for the user application,
e.g.:

    # ip -d link

    1: lo:  mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 promiscuity 0
    2: enp0s25:  mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000
        link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff promiscuity 0
    3: wlp3s0:  mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
        link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff promiscuity 0
        wlan

Signed-off-by: Vadim Kochan 
Acked-by: Marcel Holtmann 
[make wireless_link_ops const]
Signed-off-by: Johannes Berg

cfg80211: leave invalid channels on regdomain change

2014-11-28T13:33:41+00:00

When the regulatory settings change, some channels might become invalid.
Disconnect interfaces acting on these channels, after giving userspace
code a grace period to leave them.

This mode is currently opt-in, and not all interface operating modes are
supported for regulatory-enforcement checks. A wiphy that wishes to use
the new enforcement code must specify an appropriate regulatory flag,
and all its supported interface modes must be supported by the checking
code.

Signed-off-by: Arik Nemtsov 
Reviewed-by: Luis R. Rodriguez 
[fix some indentation, typos]
Signed-off-by: Johannes Berg

cfg80211: introduce TDLS channel switch commands

2014-11-19T17:45:12+00:00

Introduce commands to initiate and cancel TDLS channel-switching. Once
TDLS channel-switching is started, the lower level driver is responsible
for continually initiating channel-switch operations and returning to
the base (AP) channel to listen for beacons from time to time.

Upon cancellation of the channel-switch all communication between the
relevant TDLS peers will continue on the base channel.

Signed-off-by: Arik Nemtsov 
Signed-off-by: Johannes Berg

cfg80211: 802.11p OCB mode handling

2014-11-04T12:18:17+00:00

This patch adds new iface type (NL80211_IFTYPE_OCB) representing
the OCB (Outside the Context of a BSS) mode.
When establishing a connection to the network a cfg80211_join_ocb
function is called (particular nl80211_command is added as well).
A mandatory parameters during the ocb_join operation are 'center
frequency' and 'channel width (5/10 MHz)'.

Changes done in mac80211 are minimal possible required to avoid
many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB'
not handled in switch) during compilation. Full functionality
(where needed) is added in the following patch.

Signed-off-by: Rostislav Lisovy 
Signed-off-by: Johannes Berg

cfg80211: avoid using default in interface type switch

2014-10-31T13:19:19+00:00

Most code avoids having a default case in interface type switch
statements already, to make it easier to find places that need
to be extended. Change the code in the __cfg80211_leave() and
nl80211_key_allowed() functions to not have a default case.

Signed-off-by: Johannes Berg