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nl80211: support SAE authentication offload in AP mode

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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>
This commit is contained in:
Chung-Hsien Hsu 2020-08-17 02:33:15 -05:00 committed by Johannes Berg
parent 8552a434b6
commit 2831a63102
2 changed files with 17 additions and 6 deletions
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14
include/uapi/linux/nl80211.h
View File

@ -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,

9
net/wireless/nl80211.c
View File

@ -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]);