| From | Pali Rohár <> | Subject | [PATCH 13/16] wl1251: enforce changed hw encryption support on monitor state change | Date | Sat, 26 Oct 2013 22:34:12 +0200 |
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From: David Gnedt <david.gnedt@davizone.at>
The firmware doesn't support per packet encryption selection, so disable hw encryption support completly 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> --- drivers/net/wireless/ti/wl1251/main.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c index 174f403..f054741 100644 --- a/drivers/net/wireless/ti/wl1251/main.c +++ b/drivers/net/wireless/ti/wl1251/main.c @@ -685,6 +685,16 @@ 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. + * XXX This requires temporary enabling 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); @@ -1116,6 +1126,9 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, } if (changed & BSS_CHANGED_ASSOC) { + /* XXX 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; -- 1.7.10.4
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