[Patch v9 15/16] nl80211: Extended Key ID support

[Alexander Wetzel <alexander@xxxxxxxxxxxxxx>]

Add support for Extended Key ID to nl80211, allowing hostapd and
wpa_supplicant to use it.

Signed-off-by: Alexander Wetzel <alexander@xxxxxxxxxxxxxx>
---
 src/drivers/driver_nl80211.c      | 22 +++++++++++++++++++---
 src/drivers/driver_nl80211_capa.c |  4 ++++
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index aa7e24677..36f7d14c9 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -3051,7 +3051,11 @@ static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
 	if (!key_msg)
 		return -ENOBUFS;
 
-	if (alg == WPA_ALG_NONE) {
+	if (key_flag == KEY_FLAG_PAIRWISE_RX_TX_MODIFY) {
+		msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY);
+		if (!msg)
+			goto fail2;
+	} else if (alg == WPA_ALG_NONE) {
 		msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY);
 		if (!msg)
 			goto fail2;
@@ -3070,7 +3074,7 @@ static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
 		wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len);
 	}
 
-	if (seq && seq_len) {
+	if (seq && seq_len && key_flag != KEY_FLAG_PAIRWISE_RX_TX_MODIFY) {
 		if (nla_put(key_msg, NL80211_KEY_SEQ, seq_len, seq))
 			goto fail;
 		wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len);
@@ -3081,7 +3085,19 @@ static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
 		if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
 			goto fail;
 
-		if (key_flag == KEY_FLAG_GROUP_RX) {
+		if (key_flag == KEY_FLAG_PAIRWISE_RX ||
+		    key_flag == KEY_FLAG_PAIRWISE_RX_TX_MODIFY) {
+			wpa_printf(MSG_DEBUG,
+				   "   PAIRWISE_RX%s keyid=%d addr=" MACSTR,
+				   key_flag !=  KEY_FLAG_PAIRWISE_RX ?
+						"_TX_MODIFY" : "",
+				   key_idx, MAC2STR(addr));
+			if (nla_put_u8(key_msg, NL80211_KEY_MODE,
+				       key_flag ==  KEY_FLAG_PAIRWISE_RX ?
+				       NL80211_KEY_NO_TX :
+				       NL80211_KEY_SET_TX))
+				goto fail;
+		} else if (key_flag == KEY_FLAG_GROUP_RX) {
 			wpa_printf(MSG_DEBUG, "   RSN IBSS RX GTK");
 			if (nla_put_u32(key_msg, NL80211_KEY_TYPE,
 					NL80211_KEYTYPE_GROUP))
diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index 96f691b60..dd3497089 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -421,6 +421,10 @@ static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info,
 			       NL80211_EXT_FEATURE_CAN_REPLACE_PTK0))
 		capa->flags |= WPA_DRIVER_FLAGS_SAFE_PTK0_REKEYS;
 
+	if (ext_feature_isset(ext_features, len,
+			      NL80211_EXT_FEATURE_EXT_KEY_ID))
+		capa->flags |= WPA_DRIVER_FLAGS_EXTENDED_KEY_ID;
+
 #ifdef CONFIG_MBO
 	if (ext_feature_isset(ext_features, len,
 			      NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME) &&
-- 
2.24.1


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