From dc828029188af18eb8a3fe2a552ebd456dc98e50 Mon Sep 17 00:00:00 2001
From: Kevin Lo <kevlo@FreeBSD.org>
Date: Mon, 12 Oct 2015 08:17:21 +0000
Subject: [PATCH] Accept any correct frames from any source when MONITOR mode
 is used.

Submitted by:	Andriy Voskoboinyk <s3erios at gmail.com>
Differential Revision:	https://reviews.freebsd.org/D3812
---
 sys/dev/usb/wlan/if_urtwn.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sys/dev/usb/wlan/if_urtwn.c b/sys/dev/usb/wlan/if_urtwn.c
index d1275c02b5a2..5aca1a4f07c1 100644
--- a/sys/dev/usb/wlan/if_urtwn.c
+++ b/sys/dev/usb/wlan/if_urtwn.c
@@ -1632,6 +1632,19 @@ urtwn_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
 			/* Enable Rx of data frames. */
 			urtwn_write_2(sc, R92C_RXFLTMAP2, 0xffff);
 
+			/* Enable Rx of ctrl frames. */
+			urtwn_write_2(sc, R92C_RXFLTMAP1, 0xffff);
+
+			/*
+			 * Accept data/control/management frames
+			 * from any BSSID.
+			 */
+			urtwn_write_4(sc, R92C_RCR,
+			    (urtwn_read_4(sc, R92C_RCR) & ~(R92C_RCR_APM |
+			    R92C_RCR_CBSSID_DATA | R92C_RCR_CBSSID_BCN)) |
+			    R92C_RCR_ADF | R92C_RCR_ACF | R92C_RCR_AMF |
+			    R92C_RCR_AAP);
+
 			/* Turn link LED on. */
 			urtwn_set_led(sc, URTWN_LED_LINK, 1);
 			break;