6 files changed, 55 insertions, 18 deletions

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 ca8d05245ca0..b7002429f152 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -330,7 +330,7 @@ EXPORT_SYMBOL(hci_get_route);
 
 /* Create SCO or ACL connection.
  * Device _must_ be locked */
-struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
+struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 auth_type)
 {
         struct hci_conn *acl;
         struct hci_conn *sco;
@@ -344,8 +344,10 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
 
         hci_conn_hold(acl);
 
-        if (acl->state == BT_OPEN || acl->state == BT_CLOSED)
+        if (acl->state == BT_OPEN || acl->state == BT_CLOSED) {
+                acl->auth_type = auth_type;
                 hci_acl_connect(acl);
+        }
 
         if (type == ACL_LINK)
                 return acl;
@@ -374,6 +376,19 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst)
 }
 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)
 {
@@ -381,7 +396,7 @@ int hci_conn_auth(struct hci_conn *conn)
 
         if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0) {
                 if (!(conn->auth_type & 0x01)) {
-                        conn->auth_type = HCI_AT_GENERAL_BONDING_MITM;
+                        conn->auth_type |= 0x01;
                         conn->link_mode &= ~HCI_LM_AUTH;
                 }
         }
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f5b21cb93699..278a3ace14f6 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -164,6 +164,9 @@ static inline int hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *
 {
         int ret;
 
+        if (!test_bit(HCI_UP, &hdev->flags))
+                return -ENETDOWN;
+
         /* Serialize all requests */
         hci_req_lock(hdev);
         ret = __hci_request(hdev, req, opt, timeout);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 0e3db289f4be..ad7a553d7713 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1605,14 +1605,11 @@ static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_b
 
                 if (conn->state == BT_CONFIG) {
                         if (!ev->status && hdev->ssp_mode > 0 &&
-                                                        conn->ssp_mode > 0) {
-                                if (conn->out) {
-                                        struct hci_cp_auth_requested cp;
-                                        cp.handle = ev->handle;
-                                        hci_send_cmd(hdev,
-                                                HCI_OP_AUTH_REQUESTED,
+                                        conn->ssp_mode > 0 && conn->out) {
+                                struct hci_cp_auth_requested cp;
+                                cp.handle = ev->handle;
+                                hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
                                                         sizeof(cp), &cp);
-                                }
                         } else {
                                 conn->state = BT_CONNECTED;
                                 hci_proto_connect_cfm(conn, ev->status);
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 3396d5bdef1c..9610a9c85b98 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -55,7 +55,7 @@
 #define BT_DBG(D...)
 #endif
 
-#define VERSION "2.10"
+#define VERSION "2.11"
 
 static u32 l2cap_feat_mask = 0x0000;
 
@@ -778,6 +778,7 @@ static int l2cap_do_connect(struct sock *sk)
         struct l2cap_conn *conn;
         struct hci_conn *hcon;
         struct hci_dev *hdev;
+        __u8 auth_type;
         int err = 0;
 
         BT_DBG("%s -> %s psm 0x%2.2x", batostr(src), batostr(dst), l2cap_pi(sk)->psm);
@@ -789,7 +790,21 @@ static int l2cap_do_connect(struct sock *sk)
 
         err = -ENOMEM;
 
-        hcon = hci_connect(hdev, ACL_LINK, dst);
+        if (l2cap_pi(sk)->link_mode & L2CAP_LM_AUTH ||
+                        l2cap_pi(sk)->link_mode & L2CAP_LM_ENCRYPT ||
+                                l2cap_pi(sk)->link_mode & L2CAP_LM_SECURE) {
+                if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
+                        auth_type = HCI_AT_NO_BONDING_MITM;
+                else
+                        auth_type = HCI_AT_GENERAL_BONDING_MITM;
+        } else {
+                if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001))
+                        auth_type = HCI_AT_NO_BONDING;
+                else
+                        auth_type = HCI_AT_GENERAL_BONDING;
+        }
+
+        hcon = hci_connect(hdev, ACL_LINK, dst, auth_type);
         if (!hcon)
                 goto done;
 
@@ -1553,10 +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);
 
@@ -1567,6 +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 */
@@ -2224,7 +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);
                 }
@@ -2296,7 +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);
                 }
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index a16011fedc1d..0cc91e6da76d 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -200,7 +200,7 @@ static int sco_connect(struct sock *sk)
         else
                 type = SCO_LINK;
 
-        hcon = hci_connect(hdev, type, dst);
+        hcon = hci_connect(hdev, type, dst, HCI_AT_NO_BONDING);
         if (!hcon)
                 goto done;