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authorDavid Gnedt2014-01-07 13:11:27 +0100
committerJohn W. Linville2014-01-09 10:56:37 -0500
commitb90a1165a72fabdc260abaa9eeadcbfd29e267eb (patch)
tree1923b8dd3291449b8df96b9ef2ca20ffd4523486 /drivers/net
parent3d49da748bc957ec65aa80ab7322ca463d280466 (diff)
wl1251: enforce changed hw encryption support on monitor state change
The firmware doesn't support per packet encryption selection, so disable hw encryption support completely while a monitor interface is present to support injection of packets (which shouldn't get encrypted by hw). To enforce the changed hw encryption support force a disassociation on non-monitor interfaces. For disassociation a workaround using hw connection monitor is employed, which temporary enables hw connection manager flag. Signed-off-by: David Gnedt <david.gnedt@davizone.at> Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ti/wl1251/main.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 5a265a24f1fe..4101693920a5 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -687,6 +687,16 @@ static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed)
wl->power_level = conf->power_level;
}
+ /*
+ * Tell stack that connection is lost because hw encryption isn't
+ * supported in monitor mode.
+ * This requires temporary enabling of the hw connection monitor flag
+ */
+ if ((changed & IEEE80211_CONF_CHANGE_MONITOR) && wl->vif) {
+ wl->hw->flags |= IEEE80211_HW_CONNECTION_MONITOR;
+ ieee80211_connection_loss(wl->vif);
+ }
+
out_sleep:
wl1251_ps_elp_sleep(wl);
@@ -1119,6 +1129,9 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw,
}
if (changed & BSS_CHANGED_ASSOC) {
+ /* Disable temporary enabled hw connection monitor flag */
+ wl->hw->flags &= ~IEEE80211_HW_CONNECTION_MONITOR;
+
if (bss_conf->assoc) {
wl->beacon_int = bss_conf->beacon_int;