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-rw-r--r--include/net/bluetooth/hci_core.h1
-rw-r--r--net/bluetooth/af_bluetooth.c2
-rw-r--r--net/bluetooth/hci_conn.c13
-rw-r--r--net/bluetooth/l2cap.c15
4 files changed, 26 insertions, 5 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 5e785b968e7e..46a43b721dd6 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -326,6 +326,7 @@ void hci_conn_hash_flush(struct hci_dev *hdev);
void hci_conn_check_pending(struct hci_dev *hdev);
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 auth_type);
+int hci_conn_check_link_mode(struct hci_conn *conn);
int hci_conn_auth(struct hci_conn *conn);
int hci_conn_encrypt(struct hci_conn *conn);
int hci_conn_change_link_key(struct hci_conn *conn);
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 1edfdf4c095b..f6348e078aa4 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -49,7 +49,7 @@
#define BT_DBG(D...)
#endif
-#define VERSION "2.12"
+#define VERSION "2.13"
/* Bluetooth sockets */
#define BT_MAX_PROTO 8
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index a2f9efaa3361..b7002429f152 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -376,6 +376,19 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8
}
EXPORT_SYMBOL(hci_connect);
+/* Check link security requirement */
+int hci_conn_check_link_mode(struct hci_conn *conn)
+{
+ BT_DBG("conn %p", conn);
+
+ if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0 &&
+ !(conn->link_mode & HCI_LM_ENCRYPT))
+ return 0;
+
+ return 1;
+}
+EXPORT_SYMBOL(hci_conn_check_link_mode);
+
/* Authenticate remote device */
int hci_conn_auth(struct hci_conn *conn)
{
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index a96d6de80d12..9610a9c85b98 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1568,10 +1568,10 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
struct l2cap_conn_rsp rsp;
struct sock *sk, *parent;
- int result, status = 0;
+ int result, status = L2CAP_CS_NO_INFO;
u16 dcid = 0, scid = __le16_to_cpu(req->scid);
- __le16 psm = req->psm;
+ __le16 psm = req->psm;
BT_DBG("psm 0x%2.2x scid 0x%4.4x", psm, scid);
@@ -1582,6 +1582,13 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
goto sendresp;
}
+ /* Check if the ACL is secure enough (if not SDP) */
+ if (psm != cpu_to_le16(0x0001) &&
+ !hci_conn_check_link_mode(conn->hcon)) {
+ result = L2CAP_CR_SEC_BLOCK;
+ goto response;
+ }
+
result = L2CAP_CR_NO_MEM;
/* Check for backlog size */
@@ -2239,7 +2246,7 @@ static int l2cap_auth_cfm(struct hci_conn *hcon, u8 status)
rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
rsp.result = cpu_to_le16(result);
- rsp.status = cpu_to_le16(0);
+ rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
L2CAP_CONN_RSP, sizeof(rsp), &rsp);
}
@@ -2311,7 +2318,7 @@ static int l2cap_encrypt_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
rsp.result = cpu_to_le16(result);
- rsp.status = cpu_to_le16(0);
+ rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
L2CAP_CONN_RSP, sizeof(rsp), &rsp);
}