Bluetooth: Use separate L2CAP LE credit based connection result values

Add the result values specific to L2CAP LE credit based connections
and change the old result values wherever they were used.
Signed-off-by: NMallikarjun Phulari <mallikarjun.phulari@intel.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

include/net/bluetooth/l2cap.h

@@ -277,12 +277,17 @@ struct l2cap_conn_rsp {
 #define L2CAP_CR_SEC_BLOCK	0x0003
 #define L2CAP_CR_NO_MEM		0x0004
 #define L2CAP_CR_BAD_AMP	0x0005
-#define L2CAP_CR_AUTHENTICATION	0x0005
-#define L2CAP_CR_AUTHORIZATION	0x0006
-#define L2CAP_CR_BAD_KEY_SIZE	0x0007
-#define L2CAP_CR_ENCRYPTION	0x0008
-#define L2CAP_CR_INVALID_SCID	0x0009
-#define L2CAP_CR_SCID_IN_USE	0x000A
+
+/* credit based connect results */
+#define L2CAP_CR_LE_SUCCESS		0x0000
+#define L2CAP_CR_LE_BAD_PSM		0x0002
+#define L2CAP_CR_LE_NO_MEM		0x0004
+#define L2CAP_CR_LE_AUTHENTICATION	0x0005
+#define L2CAP_CR_LE_AUTHORIZATION	0x0006
+#define L2CAP_CR_LE_BAD_KEY_SIZE	0x0007
+#define L2CAP_CR_LE_ENCRYPTION		0x0008
+#define L2CAP_CR_LE_INVALID_SCID	0x0009
+#define L2CAP_CR_LE_SCID_IN_USE		0X000A
 
 /* connect/create channel status */
 #define L2CAP_CS_NO_INFO	0x0000

net/bluetooth/l2cap_core.c

@@ -680,9 +680,9 @@ static void l2cap_chan_le_connect_reject(struct l2cap_chan *chan)
 	u16 result;
 
 	if (test_bit(FLAG_DEFER_SETUP, &chan->flags))
-		result = L2CAP_CR_AUTHORIZATION;
+		result = L2CAP_CR_LE_AUTHORIZATION;
 	else
-		result = L2CAP_CR_BAD_PSM;
+		result = L2CAP_CR_LE_BAD_PSM;
 
 	l2cap_state_change(chan, BT_DISCONN);
 
@@ -3670,7 +3670,7 @@ void __l2cap_le_connect_rsp_defer(struct l2cap_chan *chan)
 	rsp.mtu     = cpu_to_le16(chan->imtu);
 	rsp.mps     = cpu_to_le16(chan->mps);
 	rsp.credits = cpu_to_le16(chan->rx_credits);
-	rsp.result  = cpu_to_le16(L2CAP_CR_SUCCESS);
+	rsp.result  = cpu_to_le16(L2CAP_CR_LE_SUCCESS);
 
 	l2cap_send_cmd(conn, chan->ident, L2CAP_LE_CONN_RSP, sizeof(rsp),
 		       &rsp);
@@ -5280,7 +5280,7 @@ static int l2cap_le_connect_rsp(struct l2cap_conn *conn,
 	credits = __le16_to_cpu(rsp->credits);
 	result  = __le16_to_cpu(rsp->result);
 
-	if (result == L2CAP_CR_SUCCESS && (mtu < 23 || mps < 23 ||
+	if (result == L2CAP_CR_LE_SUCCESS && (mtu < 23 || mps < 23 ||
 					   dcid < L2CAP_CID_DYN_START ||
 					   dcid > L2CAP_CID_LE_DYN_END))
 		return -EPROTO;
@@ -5301,7 +5301,7 @@ static int l2cap_le_connect_rsp(struct l2cap_conn *conn,
 	l2cap_chan_lock(chan);
 
 	switch (result) {
-	case L2CAP_CR_SUCCESS:
+	case L2CAP_CR_LE_SUCCESS:
 		if (__l2cap_get_chan_by_dcid(conn, dcid)) {
 			err = -EBADSLT;
 			break;
@@ -5315,8 +5315,8 @@ static int l2cap_le_connect_rsp(struct l2cap_conn *conn,
 		l2cap_chan_ready(chan);
 		break;
 
-	case L2CAP_CR_AUTHENTICATION:
-	case L2CAP_CR_ENCRYPTION:
+	case L2CAP_CR_LE_AUTHENTICATION:
+	case L2CAP_CR_LE_ENCRYPTION:
 		/* If we already have MITM protection we can't do
 		 * anything.
 		 */
@@ -5459,7 +5459,7 @@ static int l2cap_le_connect_req(struct l2cap_conn *conn,
 	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, &conn->hcon->src,
 					 &conn->hcon->dst, LE_LINK);
 	if (!pchan) {
-		result = L2CAP_CR_BAD_PSM;
+		result = L2CAP_CR_LE_BAD_PSM;
 		chan = NULL;
 		goto response;
 	}
@@ -5469,28 +5469,28 @@ static int l2cap_le_connect_req(struct l2cap_conn *conn,
 
 	if (!smp_sufficient_security(conn->hcon, pchan->sec_level,
 				     SMP_ALLOW_STK)) {
-		result = L2CAP_CR_AUTHENTICATION;
+		result = L2CAP_CR_LE_AUTHENTICATION;
 		chan = NULL;
 		goto response_unlock;
 	}
 
 	/* Check for valid dynamic CID range */
 	if (scid < L2CAP_CID_DYN_START || scid > L2CAP_CID_LE_DYN_END) {
-		result = L2CAP_CR_INVALID_SCID;
+		result = L2CAP_CR_LE_INVALID_SCID;
 		chan = NULL;
 		goto response_unlock;
 	}
 
 	/* Check if we already have channel with that dcid */
 	if (__l2cap_get_chan_by_dcid(conn, scid)) {
-		result = L2CAP_CR_SCID_IN_USE;
+		result = L2CAP_CR_LE_SCID_IN_USE;
 		chan = NULL;
 		goto response_unlock;
 	}
 
 	chan = pchan->ops->new_connection(pchan);
 	if (!chan) {
-		result = L2CAP_CR_NO_MEM;
+		result = L2CAP_CR_LE_NO_MEM;
 		goto response_unlock;
 	}
 
@@ -5526,7 +5526,7 @@ static int l2cap_le_connect_req(struct l2cap_conn *conn,
 		chan->ops->defer(chan);
 	} else {
 		l2cap_chan_ready(chan);
-		result = L2CAP_CR_SUCCESS;
+		result = L2CAP_CR_LE_SUCCESS;
 	}
 
 response_unlock: