From: Amitkumar Karwar <akarwar@marvell.com>
Date: Sat, 25 Feb 2012 05:36:05 +0000 (-0800)
Subject: mwifiex: handle auto authentication mode correctly
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a0f6d6caef4033aa9c3e2ea2ceae256c4347a419;p=linux.git

mwifiex: handle auto authentication mode correctly

When authentication type is configured to NL80211_AUTHTYPE_AUTOMATIC,
driver tries to connect using open mode. The association is failed
if AP is configured in shared mode.

This patch adds code to try association using shared mode as well if
open mode association fails.

Now since we returned exact error code in association response handler
(instead of -1), corresponding changes are done in
mwifiex_process_cmdresp().

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/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index a460fb0cc5032..6a81101bab44e 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -873,6 +873,7 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 	priv->sec_info.wpa2_enabled = false;
 	priv->wep_key_curr_index = 0;
 	priv->sec_info.encryption_mode = 0;
+	priv->sec_info.is_authtype_auto = 0;
 	ret = mwifiex_set_encode(priv, NULL, 0, 0, 1);
 
 	if (mode == NL80211_IFTYPE_ADHOC) {
@@ -894,11 +895,12 @@ mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
 	}
 
 	/* Now handle infra mode. "sme" is valid for infra mode only */
-	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
-			|| sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
+	if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
 		auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
-	else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
-		auth_type = NL80211_AUTHTYPE_SHARED_KEY;
+		priv->sec_info.is_authtype_auto = 1;
+	} else {
+		auth_type = sme->auth_type;
+	}
 
 	if (sme->crypto.n_ciphers_pairwise) {
 		priv->sec_info.encryption_mode =
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 6623db69e1571..c82eb7ff2fa26 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -771,7 +771,7 @@ int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
 
 	/* Check init command response */
 	if (adapter->hw_status == MWIFIEX_HW_STATUS_INITIALIZING) {
-		if (ret == -1) {
+		if (ret) {
 			dev_err(adapter->dev, "%s: cmd %#x failed during "
 				"initialization\n", __func__, cmdresp_no);
 			mwifiex_init_fw_complete(adapter);
@@ -781,10 +781,8 @@ int mwifiex_process_cmdresp(struct mwifiex_adapter *adapter)
 	}
 
 	if (adapter->curr_cmd) {
-		if (adapter->curr_cmd->wait_q_enabled && (!ret))
-			adapter->cmd_wait_q.status = 0;
-		else if (adapter->curr_cmd->wait_q_enabled && (ret == -1))
-			adapter->cmd_wait_q.status = -1;
+		if (adapter->curr_cmd->wait_q_enabled)
+			adapter->cmd_wait_q.status = ret;
 
 		/* Clean up and put current command back to cmd_free_q */
 		mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
index ee439fc2f4f36..5c95e48390047 100644
--- a/drivers/net/wireless/mwifiex/join.c
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -585,7 +585,7 @@ int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
 		       le16_to_cpu(assoc_rsp->cap_info_bitmap),
 		       le16_to_cpu(assoc_rsp->a_id));
 
-		ret = -1;
+		ret = le16_to_cpu(assoc_rsp->status_code);
 		goto done;
 	}
 
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 4c86217062783..dddb5563398a5 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -219,6 +219,7 @@ struct mwifiex_802_11_security {
 	u8 wapi_key_on;
 	u8 wep_enabled;
 	u32 authentication_mode;
+	u8 is_authtype_auto;
 	u32 encryption_mode;
 };
 
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 866026ecca441..e10161f5894c6 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -249,6 +249,17 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 		 * application retrieval */
 		priv->assoc_rsp_size = 0;
 		ret = mwifiex_associate(priv, bss_desc);
+
+		/* If auth type is auto and association fails using open mode,
+		 * try to connect using shared mode */
+		if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
+		    priv->sec_info.is_authtype_auto &&
+		    priv->sec_info.wep_enabled) {
+			priv->sec_info.authentication_mode =
+						NL80211_AUTHTYPE_SHARED_KEY;
+			ret = mwifiex_associate(priv, bss_desc);
+		}
+
 		if (bss)
 			cfg80211_put_bss(bss);
 	} else {