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authorChung-Hsien Hsu <stanley.hsu@cypress.com>2020-08-17 02:33:15 -0500
committerJohannes Berg <johannes.berg@intel.com>2020-08-27 15:19:44 +0200
commit2831a631022eed6e3f800f08892132c6edde652c (patch)
tree7e076f593af4e736cea0d02b24760fb9e0d094b8
parent8552a434b6a05cc38006733afe6a239ad4d600a2 (diff)
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nl80211: support SAE authentication offload in AP mode
Let drivers advertise support for AP-mode SAE authentication offload with a new NL80211_EXT_FEATURE_SAE_OFFLOAD_AP flag. Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com> Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com> Link: https://lore.kernel.org/r/20200817073316.33402-4-stanley.hsu@cypress.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
-rw-r--r--include/uapi/linux/nl80211.h14
-rw-r--r--net/wireless/nl80211.c9
2 files changed, 17 insertions, 6 deletions
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index ec96d5fe0e05..0584e0d349f0 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -252,9 +252,13 @@
* 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 in station
+ * mode. Similarly @NL80211_EXT_FEATURE_SAE_OFFLOAD_AP flag can be set by
+ * drivers indicating the offload support in AP mode.
+ *
+ * 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.
*/
/**
@@ -5845,6 +5849,9 @@ enum nl80211_feature_flags {
* handshake with PSK in AP mode (PSK is passed as part of the start AP
* command).
*
+ * @NL80211_EXT_FEATURE_SAE_OFFLOAD_AP: Device wants to do SAE authentication
+ * in AP mode (SAE password is passed as part of the start AP command).
+ *
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@@ -5902,6 +5909,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_TX_STATUS,
NL80211_EXT_FEATURE_OPERATING_CHANNEL_VALIDATION,
NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK,
+ NL80211_EXT_FEATURE_SAE_OFFLOAD_AP,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e640e65f3255..201d029687cc 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4960,8 +4960,9 @@ 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_AP) &&
+ auth_type == NL80211_AUTHTYPE_SAE)
return false;
/* FILS not supported yet */
if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
@@ -9552,7 +9553,9 @@ static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
if (info->attrs[NL80211_ATTR_SAE_PASSWORD]) {
if (!wiphy_ext_feature_isset(&rdev->wiphy,
- NL80211_EXT_FEATURE_SAE_OFFLOAD))
+ NL80211_EXT_FEATURE_SAE_OFFLOAD) &&
+ !wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_SAE_OFFLOAD_AP))
return -EINVAL;
settings->sae_pwd =
nla_data(info->attrs[NL80211_ATTR_SAE_PASSWORD]);