libertas: add auto auth mode feature
Auto auth mode is enabled by default. If user doesn't specify the
auth mode, while association driver will first try with open mode
and then with shared key mode. If user specifies an auth mode,
auto auth is disabled and driver will not try association with
another auth mode.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/assoc.c b/drivers/net/wireless/libertas/assoc.c
index f03d5e4..95d3d4c 100644
--- a/drivers/net/wireless/libertas/assoc.c
+++ b/drivers/net/wireless/libertas/assoc.c
@@ -31,6 +31,9 @@
0x00, 0x00 };
+static int assoc_helper_wep_keys(struct lbs_private *priv,
+ struct assoc_request *assoc_req);
+
/**
* @brief This function finds common rates between rates and card rates.
*
@@ -610,7 +613,7 @@
if (status_code) {
lbs_mac_event_disconnected(priv);
- ret = -1;
+ ret = status_code;
goto done;
}
@@ -813,7 +816,24 @@
goto out;
ret = lbs_associate(priv, assoc_req, CMD_802_11_ASSOCIATE);
+ /* If the association fails with current auth mode, let's
+ * try by changing the auth mode
+ */
+ if ((priv->authtype_auto) &&
+ (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) &&
+ (assoc_req->secinfo.wep_enabled) &&
+ (priv->connect_status != LBS_CONNECTED)) {
+ if (priv->secinfo.auth_mode == IW_AUTH_ALG_OPEN_SYSTEM)
+ priv->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
+ else
+ priv->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
+ if (!assoc_helper_wep_keys(priv, assoc_req))
+ ret = lbs_associate(priv, assoc_req,
+ CMD_802_11_ASSOCIATE);
+ }
+ if (ret)
+ ret = -1;
out:
lbs_deb_leave_args(LBS_DEB_ASSOC, "ret %d", ret);
return ret;
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index 6977ee82..058d172 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -133,6 +133,7 @@
u8 wpa_ie_len;
u16 wep_tx_keyidx;
struct enc_key wep_keys[4];
+ u8 authtype_auto;
/* Wake On LAN */
uint32_t wol_criteria;
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 28a1c9d..3c889f4 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -835,6 +835,7 @@
priv->is_auto_deep_sleep_enabled = 0;
priv->wakeup_dev_required = 0;
init_waitqueue_head(&priv->ds_awake_q);
+ priv->authtype_auto = 1;
mutex_init(&priv->lock);
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index 71f88a0..aad6263 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -1440,8 +1440,10 @@
set_bit(ASSOC_FLAG_WEP_TX_KEYIDX, &assoc_req->flags);
if (dwrq->flags & IW_ENCODE_RESTRICTED) {
+ priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->flags & IW_ENCODE_OPEN) {
+ priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}
@@ -1620,8 +1622,10 @@
goto out;
if (dwrq->flags & IW_ENCODE_RESTRICTED) {
+ priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_SHARED_KEY;
} else if (dwrq->flags & IW_ENCODE_OPEN) {
+ priv->authtype_auto = 0;
assoc_req->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
}