|
 |
7eb1092 |
Currently the only way for wireless drivers to tell whether or not OFDM
|
|
|
7eb1092 |
is allowed on the current channel is to check the regulatory
|
|
|
7eb1092 |
information. However, this requires hodling cfg80211_mutex, which is not
|
|
|
7eb1092 |
visible to the drivers.
|
|
|
7eb1092 |
|
|
|
7eb1092 |
Other regulatory restrictions are provided as flags in the channel
|
|
|
7eb1092 |
definition, so let's do similarly with OFDM. This patch adds a new flag,
|
|
|
7eb1092 |
IEEE80211_CHAN_NO_OFDM, to tell drivers that OFDM on a channel is not
|
|
|
7eb1092 |
allowed. This flag is set on any channels for which regulatory indicates
|
|
|
7eb1092 |
that OFDM is prohibited.
|
|
|
7eb1092 |
|
|
|
7eb1092 |
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
|
|
|
7eb1092 |
---
|
|
|
7eb1092 |
include/net/cfg80211.h | 2 ++
|
|
|
7eb1092 |
net/wireless/reg.c | 2 ++
|
|
|
7eb1092 |
2 files changed, 4 insertions(+)
|
|
|
7eb1092 |
|
|
|
7eb1092 |
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
|
|
|
7eb1092 |
index 493fa0c..3d254e1 100644
|
|
|
7eb1092 |
--- a/include/net/cfg80211.h
|
|
|
7eb1092 |
+++ b/include/net/cfg80211.h
|
|
|
7eb1092 |
@@ -96,6 +96,7 @@ enum ieee80211_band {
|
|
|
7eb1092 |
* is not permitted.
|
|
|
7eb1092 |
* @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
|
|
|
7eb1092 |
* is not permitted.
|
|
|
7eb1092 |
+ * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
|
|
|
7eb1092 |
*/
|
|
|
7eb1092 |
enum ieee80211_channel_flags {
|
|
|
7eb1092 |
IEEE80211_CHAN_DISABLED = 1<<0,
|
|
|
7eb1092 |
@@ -104,6 +105,7 @@ enum ieee80211_channel_flags {
|
|
|
7eb1092 |
IEEE80211_CHAN_RADAR = 1<<3,
|
|
|
7eb1092 |
IEEE80211_CHAN_NO_HT40PLUS = 1<<4,
|
|
|
7eb1092 |
IEEE80211_CHAN_NO_HT40MINUS = 1<<5,
|
|
|
7eb1092 |
+ IEEE80211_CHAN_NO_OFDM = 1<<6,
|
|
|
7eb1092 |
};
|
|
|
7eb1092 |
|
|
|
7eb1092 |
#define IEEE80211_CHAN_NO_HT40 \
|
|
|
7eb1092 |
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
|
|
|
7eb1092 |
index 2303ee7..0f3a8a1 100644
|
|
|
7eb1092 |
--- a/net/wireless/reg.c
|
|
|
7eb1092 |
+++ b/net/wireless/reg.c
|
|
|
7eb1092 |
@@ -680,6 +680,8 @@ static u32 map_regdom_flags(u32 rd_flags)
|
|
|
7eb1092 |
channel_flags |= IEEE80211_CHAN_NO_IBSS;
|
|
|
7eb1092 |
if (rd_flags & NL80211_RRF_DFS)
|
|
|
7eb1092 |
channel_flags |= IEEE80211_CHAN_RADAR;
|
|
|
7eb1092 |
+ if (rd_flags & NL80211_RRF_NO_OFDM)
|
|
|
7eb1092 |
+ channel_flags |= IEEE80211_CHAN_NO_OFDM;
|
|
|
7eb1092 |
return channel_flags;
|
|
|
7eb1092 |
}
|
|
|
7eb1092 |
|
|
|
7eb1092 |
--
|
|
|
7eb1092 |
1.7.9.5
|
|
|
7eb1092 |
|