Bluetooth: Define and use PSM identifiers

Define assigned Protocol and Service Multiplexor (PSM) identifiers
and use them instead of magic numbers.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 0142257..f44344b 100644 (file)
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -229,6 +229,10 @@ struct l2cap_conn_rsp {
        __le16     status;
 } __packed;
 
+/* protocol/service multiplexer (PSM) */
+#define L2CAP_PSM_SDP          0x0001
+#define L2CAP_PSM_RFCOMM       0x0003
+
 /* channel indentifier */
 #define L2CAP_CID_SIGNALING    0x0001
 #define L2CAP_CID_CONN_LESS    0x0002

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c9e6ae4..65c3f4e 100644 (file)
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -648,7 +648,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
                default:
                        return HCI_AT_NO_BONDING;
                }
-       } else if (chan->psm == cpu_to_le16(0x0001)) {
+       } else if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
                if (chan->sec_level == BT_SECURITY_LOW)
                        chan->sec_level = BT_SECURITY_SDP;
 
@@ -3393,7 +3393,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
        lock_sock(parent);
 
        /* Check if the ACL is secure enough (if not SDP) */
-       if (psm != cpu_to_le16(0x0001) &&
+       if (psm != __constant_cpu_to_le16(L2CAP_PSM_SDP) &&
                                !hci_conn_check_link_mode(conn->hcon)) {
                conn->disc_reason = HCI_ERROR_AUTH_FAILURE;
                result = L2CAP_CR_SEC_BLOCK;

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 4d36605..d244361 100644 (file)
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -88,8 +88,8 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
        if (err < 0)
                goto done;
 
-       if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
-                               __le16_to_cpu(la.l2_psm) == 0x0003)
+       if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
+           __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
                chan->sec_level = BT_SECURITY_SDP;
 
        bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);