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Bluetooth: Define and use PSM identifiers

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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>
This commit is contained in:
Andrei Emeltchenko 2012-05-24 15:42:50 +03:00 committed by Johan Hedberg
parent 6d3c730f03
commit 2983fd6824
3 changed files with 8 additions and 4 deletions
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4
include/net/bluetooth/l2cap.h
View File

@ -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

4
net/bluetooth/l2cap_core.c
View File

@ -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;

4
net/bluetooth/l2cap_sock.c
View File

@ -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);