nl80211: support SAE authentication offload in AP mode

Add support for SAE authentication offload in AP mode. Signed-off-by: Chung-Hsien Hsu <[email protected]> Signed-off-by: Chi-Hsien Lin <[email protected]>
beagleboard · Mar 8, 2022 · b218f54 · b218f54
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commit b218f54
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Showing 2 changed files with 9 additions and 6 deletions.
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
@@ -247,9 +247,10 @@
  * DOC: SAE authentication offload
  *
  * By setting @NL80211_EXT_FEATURE_SAE_OFFLOAD flag drivers can indicate they
- * support offloading SAE authentication for WPA3-Personal networks. In
- * %NL80211_CMD_CONNECT the password for SAE should be specified using
- * %NL80211_ATTR_SAE_PASSWORD.
+ * support offloading SAE authentication for WPA3-Personal networks. The
+ * password for SAE should be specified using %NL80211_ATTR_SAE_PASSWORD in
+ * %NL80211_CMD_CONNECT and %NL80211_CMD_START_AP for station and AP mode
+ * respectively.
  */
 
 /**
@@ -5318,7 +5319,8 @@ enum nl80211_feature_flags {
  *	to a station.
  *
  * @NL80211_EXT_FEATURE_SAE_OFFLOAD: Device wants to do SAE authentication in
- *	station mode (SAE password is passed as part of the connect command).
+ *	station mode (SAE password is passed as part of the connect command)
+ *	or AP mode (SAE password is passed as part of the start AP command).
  *
  * @NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK: Device wants to do 4-way
  *	handshake with PSK in AP mode (PSK is passed as part of the start AP

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
@@ -4202,8 +4202,9 @@ static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
 			return false;
 		return true;
 	case NL80211_CMD_START_AP:
-		/* SAE not supported yet */
-		if (auth_type == NL80211_AUTHTYPE_SAE)
+		if (!wiphy_ext_feature_isset(&rdev->wiphy,
+					     NL80211_EXT_FEATURE_SAE_OFFLOAD) &&
+		    auth_type == NL80211_AUTHTYPE_SAE)
 			return false;
 		/* FILS not supported yet */
 		if (auth_type == NL80211_AUTHTYPE_FILS_SK ||