Add new NL80211_FEATURE_DFS attribute which indicates
that driver/HW supports radar detection.
Signed-off-by: Victor Goldenshtein <victorg@xxxxxx>
---
include/linux/nl80211.h | 2 ++
include/net/cfg80211.h | 3 +++
net/wireless/nl80211.c | 17 ++++++++++++++++-
3 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 8a004fc..0ec7956 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -2829,10 +2829,12 @@ enum nl80211_ap_sme_features {
* TX status to the socket error queue when requested with the
* socket option.
* @NL80211_FEATURE_HT_IBSS: This driver supports IBSS with HT datarates.
+ * @NL80211_FEATURE_DFS: Radar detection is supported in the HW/driver.
*/
enum nl80211_feature_flags {
NL80211_FEATURE_SK_TX_STATUS = 1 << 0,
NL80211_FEATURE_HT_IBSS = 1 << 1,
+ NL80211_FEATURE_DFS = 1 << 2,
};
/**
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 824883a..363ff09 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1762,6 +1762,8 @@ struct cfg80211_ops {
* responds to probe-requests in hardware.
* @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
* @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
+ * @WIPHY_FLAG_SUPPORTS_DFS: The device supports radar detection
+ * in the HW/driver.
*/
enum wiphy_flags {
WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0),
@@ -1785,6 +1787,7 @@ enum wiphy_flags {
WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19),
WIPHY_FLAG_OFFCHAN_TX = BIT(20),
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
+ WIPHY_FLAG_SUPPORTS_DFS = BIT(22),
};
/**
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8fe7e59..3bb83c4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -695,6 +695,20 @@ nla_put_failure:
return -ENOBUFS;
}
+static int nl80211_put_feature_flags(struct wiphy *wiphy,
+ struct sk_buff *msg)
+{
+ if (wiphy->flags & WIPHY_FLAG_SUPPORTS_DFS)
+ wiphy->features |= NL80211_FEATURE_DFS;
+
+
+ NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, wiphy->features);
+
+ return 0;
+nla_put_failure:
+ return -ENOBUFS;
+}
+
static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
struct cfg80211_registered_device *dev)
{
@@ -1038,7 +1052,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
dev->wiphy.ap_sme_capa);
- NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
+ if (nl80211_put_feature_flags(&dev->wiphy, msg))
+ goto nla_put_failure;
if (dev->wiphy.ht_capa_mod_mask)
NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
--
1.7.5.4
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