[PATCH] nl80211: Handle NL80211_CMD_PROBE_CLIENT response

Andrei Otcheretianski andrei.otcheretianski at intel.com
Wed Apr 3 08:17:12 PDT 2019


From: Ilan Peer <ilan.peer at intel.com>

When processing the NL80211_CMD_PROBE_CLIENT command, the
nl80211 layer in the kernel sends a response containing the
cookie associated with the client probe request. This response
is not handled by driver_nl80211 when sending the command,
and is mistakenly handled as an asynchronous event.

Fix this by reading the response as part of the sending the
command flow.

Signed-off-by: Ilan Peer <ilan.peer at intel.com>
---
 src/drivers/driver_nl80211.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 52cef41865..064d73fe81 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -8260,6 +8260,7 @@ static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
 	struct i802_bss *bss = priv;
 	struct wpa_driver_nl80211_data *drv = bss->drv;
 	struct nl_msg *msg;
+	u64 cookie;
 	int ret;
 
 	if (!drv->poll_command_supported) {
@@ -8273,11 +8274,15 @@ static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
 		return;
 	}
 
-	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+	ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
 	if (ret < 0) {
 		wpa_printf(MSG_DEBUG, "nl80211: Client probe request for "
 			   MACSTR " failed: ret=%d (%s)",
 			   MAC2STR(addr), ret, strerror(-ret));
+	} else {
+		wpa_printf(MSG_DEBUG,
+			   "nl80211: Client probe request cookie=%lu",
+			   cookie);
 	}
 }
 
-- 
2.19.1




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