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cfg80211: change GO_CONCURRENT to IR_CONCURRENT for STA

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The GO_CONCURRENT regulatory definition can be extended to station
interfaces requesting to IR as part of TDLS off-channel operations.
Rename the GO_CONCURRENT flag to IR_CONCURRENT and allow the added
use-case.

Change internal users of GO_CONCURRENT to use the new definition.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Arik Nemtsov
2015-05-06 16:28:31 +03:00
committed by Johannes Berg
parent 8aca9b2913
commit 06f207fc54
6 changed files with 45 additions and 35 deletions
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38
net/wireless/chan.c
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@@ -698,19 +698,20 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
EXPORT_SYMBOL(cfg80211_chandef_usable);
/*
* For GO only, check if the channel can be used under permissive conditions
* mandated by the some regulatory bodies, i.e., the channel is marked with
* IEEE80211_CHAN_GO_CONCURRENT and there is an additional station interface
* Check if the channel can be used under permissive conditions mandated by
* some regulatory bodies, i.e., the channel is marked with
* IEEE80211_CHAN_IR_CONCURRENT and there is an additional station interface
* associated to an AP on the same channel or on the same UNII band
* (assuming that the AP is an authorized master).
* In addition allow the GO to operate on a channel on which indoor operation is
* In addition allow operation on a channel on which indoor operation is
* allowed, iff we are currently operating in an indoor environment.
*/
static bool cfg80211_go_permissive_chan(struct cfg80211_registered_device *rdev,
static bool cfg80211_ir_permissive_chan(struct wiphy *wiphy,
enum nl80211_iftype iftype,
struct ieee80211_channel *chan)
{
struct wireless_dev *wdev;
struct wiphy *wiphy = wiphy_idx_to_wiphy(rdev->wiphy_idx);
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ASSERT_RTNL();
@@ -718,16 +719,22 @@ static bool cfg80211_go_permissive_chan(struct cfg80211_registered_device *rdev,
!(wiphy->regulatory_flags & REGULATORY_ENABLE_RELAX_NO_IR))
return false;
/* only valid for GO and TDLS off-channel (station/p2p-CL) */
if (iftype != NL80211_IFTYPE_P2P_GO &&
iftype != NL80211_IFTYPE_STATION &&
iftype != NL80211_IFTYPE_P2P_CLIENT)
return false;
if (regulatory_indoor_allowed() &&
(chan->flags & IEEE80211_CHAN_INDOOR_ONLY))
return true;
if (!(chan->flags & IEEE80211_CHAN_GO_CONCURRENT))
if (!(chan->flags & IEEE80211_CHAN_IR_CONCURRENT))
return false;
/*
* Generally, it is possible to rely on another device/driver to allow
* the GO concurrent relaxation, however, since the device can further
* the IR concurrent relaxation, however, since the device can further
* enforce the relaxation (by doing a similar verifications as this),
* and thus fail the GO instantiation, consider only the interfaces of
* the current registered device.
@@ -748,7 +755,8 @@ static bool cfg80211_go_permissive_chan(struct cfg80211_registered_device *rdev,
* GO_CONCURRENT is disconnected now. But then we must make sure
* we're not outdoor on an indoor-only channel.
*/
if (wdev->iftype == NL80211_IFTYPE_P2P_GO &&
if (iftype == NL80211_IFTYPE_P2P_GO &&
wdev->iftype == NL80211_IFTYPE_P2P_GO &&
wdev->beacon_interval &&
!(chan->flags & IEEE80211_CHAN_INDOOR_ONLY))
other_chan = wdev->chandef.chan;
@@ -793,7 +801,6 @@ bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
struct cfg80211_chan_def *chandef,
enum nl80211_iftype iftype)
{
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
bool res;
u32 prohibited_flags = IEEE80211_CHAN_DISABLED |
IEEE80211_CHAN_RADAR;
@@ -801,13 +808,12 @@ bool cfg80211_reg_can_beacon(struct wiphy *wiphy,
trace_cfg80211_reg_can_beacon(wiphy, chandef, iftype);
/*
* Under certain conditions suggested by the some regulatory bodies
* a GO can operate on channels marked with IEEE80211_NO_IR
* so set this flag only if such relaxations are not enabled and
* the conditions are not met.
* Under certain conditions suggested by some regulatory bodies a
* GO/STA can IR on channels marked with IEEE80211_NO_IR. Set this flag
* only if such relaxations are not enabled and the conditions are not
* met.
*/
if (iftype != NL80211_IFTYPE_P2P_GO ||
!cfg80211_go_permissive_chan(rdev, chandef->chan))
if (!cfg80211_ir_permissive_chan(wiphy, iftype, chandef->chan))
prohibited_flags |= IEEE80211_CHAN_NO_IR;
if (cfg80211_chandef_dfs_required(wiphy, chandef, iftype) > 0 &&