From 6cdd3979a2bdc16116c5b2eb09475abf54ba9e70 Mon Sep 17 00:00:00 2001 From: Alexander Wetzel Date: Tue, 19 Mar 2019 21:34:07 +0100 Subject: nl80211/cfg80211: Extended Key ID support Add support for IEEE 802.11-2016 "Extended Key ID for Individually Addressed Frames". Extend cfg80211 and nl80211 to allow pairwise keys to be installed for Rx only, enable Tx separately and allow Key ID 1 for pairwise keys. Signed-off-by: Alexander Wetzel [use NLA_POLICY_RANGE() for NL80211_KEY_MODE] Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index f00dbd82149e..e75615bf4453 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4152,6 +4152,27 @@ enum nl80211_channel_type { NL80211_CHAN_HT40PLUS }; +/** + * enum nl80211_key_mode - Key mode + * + * @NL80211_KEY_RX_TX: (Default) + * Key can be used for Rx and Tx immediately + * + * The following modes can only be selected for unicast keys and when the + * driver supports @NL80211_EXT_FEATURE_EXT_KEY_ID: + * + * @NL80211_KEY_NO_TX: Only allowed in combination with @NL80211_CMD_NEW_KEY: + * Unicast key can only be used for Rx, Tx not allowed, yet + * @NL80211_KEY_SET_TX: Only allowed in combination with @NL80211_CMD_SET_KEY: + * The unicast key identified by idx and mac is cleared for Tx and becomes + * the preferred Tx key for the station. + */ +enum nl80211_key_mode { + NL80211_KEY_RX_TX, + NL80211_KEY_NO_TX, + NL80211_KEY_SET_TX +}; + /** * enum nl80211_chan_width - channel width definitions * @@ -4395,6 +4416,9 @@ enum nl80211_key_default_types { * @NL80211_KEY_DEFAULT_TYPES: A nested attribute containing flags * attributes, specifying what a key should be set as default as. * See &enum nl80211_key_default_types. + * @NL80211_KEY_MODE: the mode from enum nl80211_key_mode. + * Defaults to @NL80211_KEY_RX_TX. + * * @__NL80211_KEY_AFTER_LAST: internal * @NL80211_KEY_MAX: highest key attribute */ @@ -4408,6 +4432,7 @@ enum nl80211_key_attributes { NL80211_KEY_DEFAULT_MGMT, NL80211_KEY_TYPE, NL80211_KEY_DEFAULT_TYPES, + NL80211_KEY_MODE, /* keep last */ __NL80211_KEY_AFTER_LAST, @@ -5353,6 +5378,8 @@ enum nl80211_feature_flags { * able to rekey an in-use key correctly. Userspace must not rekey PTK keys * if this flag is not set. Ignoring this can leak clear text packets and/or * freeze the connection. + * @NL80211_EXT_FEATURE_EXT_KEY_ID: Driver supports "Extended Key ID for + * Individually Addressed Frames" from IEEE802.11-2016. * * @NL80211_EXT_FEATURE_AIRTIME_FAIRNESS: Driver supports getting airtime * fairness for transmitted packets and has enabled airtime fairness @@ -5406,6 +5433,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_AIRTIME_FAIRNESS, NL80211_EXT_FEATURE_AP_PMKSA_CACHING, NL80211_EXT_FEATURE_SCHED_SCAN_BAND_SPECIFIC_RSSI_THOLD, + NL80211_EXT_FEATURE_EXT_KEY_ID, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, -- cgit v1.2.3