Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[firefly-linux-kernel-4.4.55.git] / net / bluetooth / mgmt.c
index 15305fa5506713ea1a0a9086c06da0ff26a6f9af..03e7e732215f7e11d9cfca1c6b7c93c70dc96090 100644 (file)
@@ -384,7 +384,8 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 
        if (lmp_bredr_capable(hdev)) {
                settings |= MGMT_SETTING_CONNECTABLE;
-               settings |= MGMT_SETTING_FAST_CONNECTABLE;
+               if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
+                       settings |= MGMT_SETTING_FAST_CONNECTABLE;
                settings |= MGMT_SETTING_DISCOVERABLE;
                settings |= MGMT_SETTING_BREDR;
                settings |= MGMT_SETTING_LINK_SECURITY;
@@ -409,6 +410,9 @@ static u32 get_current_settings(struct hci_dev *hdev)
        if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
                settings |= MGMT_SETTING_CONNECTABLE;
 
+       if (test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags))
+               settings |= MGMT_SETTING_FAST_CONNECTABLE;
+
        if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
                settings |= MGMT_SETTING_DISCOVERABLE;
 
@@ -996,11 +1000,64 @@ failed:
        return err;
 }
 
+static void write_fast_connectable(struct hci_request *req, bool enable)
+{
+       struct hci_dev *hdev = req->hdev;
+       struct hci_cp_write_page_scan_activity acp;
+       u8 type;
+
+       if (hdev->hci_ver < BLUETOOTH_VER_1_2)
+               return;
+
+       if (enable) {
+               type = PAGE_SCAN_TYPE_INTERLACED;
+
+               /* 160 msec page scan interval */
+               acp.interval = __constant_cpu_to_le16(0x0100);
+       } else {
+               type = PAGE_SCAN_TYPE_STANDARD; /* default */
+
+               /* default 1.28 sec page scan */
+               acp.interval = __constant_cpu_to_le16(0x0800);
+       }
+
+       acp.window = __constant_cpu_to_le16(0x0012);
+
+       if (__cpu_to_le16(hdev->page_scan_interval) != acp.interval ||
+           __cpu_to_le16(hdev->page_scan_window) != acp.window)
+               hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
+                           sizeof(acp), &acp);
+
+       if (hdev->page_scan_type != type)
+               hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
+}
+
+static void set_connectable_complete(struct hci_dev *hdev, u8 status)
+{
+       struct pending_cmd *cmd;
+
+       BT_DBG("status 0x%02x", status);
+
+       hci_dev_lock(hdev);
+
+       cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
+       if (!cmd)
+               goto unlock;
+
+       send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
+
+       mgmt_pending_remove(cmd);
+
+unlock:
+       hci_dev_unlock(hdev);
+}
+
 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
                           u16 len)
 {
        struct mgmt_mode *cp = data;
        struct pending_cmd *cmd;
+       struct hci_request req;
        u8 scan;
        int err;
 
@@ -1067,7 +1124,20 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
                        cancel_delayed_work(&hdev->discov_off);
        }
 
-       err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+       hci_req_init(&req, hdev);
+
+       hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+
+       /* If we're going from non-connectable to connectable or
+        * vice-versa when fast connectable is enabled ensure that fast
+        * connectable gets disabled. write_fast_connectable won't do
+        * anything if the page scan parameters are already what they
+        * should be.
+        */
+       if (cp->val || test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags))
+               write_fast_connectable(&req, false);
+
+       err = hci_req_run(&req, set_connectable_complete);
        if (err < 0)
                mgmt_pending_remove(cmd);
 
@@ -2230,7 +2300,7 @@ unlock:
 }
 
 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
-                            bdaddr_t *bdaddr, u8 type, u16 mgmt_op,
+                            struct mgmt_addr_info *addr, u16 mgmt_op,
                             u16 hci_op, __le32 passkey)
 {
        struct pending_cmd *cmd;
@@ -2240,37 +2310,41 @@ static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
        hci_dev_lock(hdev);
 
        if (!hdev_is_powered(hdev)) {
-               err = cmd_status(sk, hdev->id, mgmt_op,
-                                MGMT_STATUS_NOT_POWERED);
+               err = cmd_complete(sk, hdev->id, mgmt_op,
+                                  MGMT_STATUS_NOT_POWERED, addr,
+                                  sizeof(*addr));
                goto done;
        }
 
-       if (type == BDADDR_BREDR)
-               conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, bdaddr);
+       if (addr->type == BDADDR_BREDR)
+               conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
        else
-               conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
+               conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &addr->bdaddr);
 
        if (!conn) {
-               err = cmd_status(sk, hdev->id, mgmt_op,
-                                MGMT_STATUS_NOT_CONNECTED);
+               err = cmd_complete(sk, hdev->id, mgmt_op,
+                                  MGMT_STATUS_NOT_CONNECTED, addr,
+                                  sizeof(*addr));
                goto done;
        }
 
-       if (type == BDADDR_LE_PUBLIC || type == BDADDR_LE_RANDOM) {
+       if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
                /* Continue with pairing via SMP */
                err = smp_user_confirm_reply(conn, mgmt_op, passkey);
 
                if (!err)
-                       err = cmd_status(sk, hdev->id, mgmt_op,
-                                        MGMT_STATUS_SUCCESS);
+                       err = cmd_complete(sk, hdev->id, mgmt_op,
+                                          MGMT_STATUS_SUCCESS, addr,
+                                          sizeof(*addr));
                else
-                       err = cmd_status(sk, hdev->id, mgmt_op,
-                                        MGMT_STATUS_FAILED);
+                       err = cmd_complete(sk, hdev->id, mgmt_op,
+                                          MGMT_STATUS_FAILED, addr,
+                                          sizeof(*addr));
 
                goto done;
        }
 
-       cmd = mgmt_pending_add(sk, mgmt_op, hdev, bdaddr, sizeof(*bdaddr));
+       cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
        if (!cmd) {
                err = -ENOMEM;
                goto done;
@@ -2280,11 +2354,12 @@ static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
        if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
                struct hci_cp_user_passkey_reply cp;
 
-               bacpy(&cp.bdaddr, bdaddr);
+               bacpy(&cp.bdaddr, &addr->bdaddr);
                cp.passkey = passkey;
                err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
        } else
-               err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr);
+               err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
+                                  &addr->bdaddr);
 
        if (err < 0)
                mgmt_pending_remove(cmd);
@@ -2301,7 +2376,7 @@ static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
 
        BT_DBG("");
 
-       return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+       return user_pairing_resp(sk, hdev, &cp->addr,
                                MGMT_OP_PIN_CODE_NEG_REPLY,
                                HCI_OP_PIN_CODE_NEG_REPLY, 0);
 }
@@ -2317,7 +2392,7 @@ static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
                return cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
                                  MGMT_STATUS_INVALID_PARAMS);
 
-       return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+       return user_pairing_resp(sk, hdev, &cp->addr,
                                 MGMT_OP_USER_CONFIRM_REPLY,
                                 HCI_OP_USER_CONFIRM_REPLY, 0);
 }
@@ -2329,7 +2404,7 @@ static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
 
        BT_DBG("");
 
-       return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+       return user_pairing_resp(sk, hdev, &cp->addr,
                                 MGMT_OP_USER_CONFIRM_NEG_REPLY,
                                 HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
 }
@@ -2341,7 +2416,7 @@ static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
 
        BT_DBG("");
 
-       return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+       return user_pairing_resp(sk, hdev, &cp->addr,
                                 MGMT_OP_USER_PASSKEY_REPLY,
                                 HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
 }
@@ -2353,7 +2428,7 @@ static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
 
        BT_DBG("");
 
-       return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
+       return user_pairing_resp(sk, hdev, &cp->addr,
                                 MGMT_OP_USER_PASSKEY_NEG_REPLY,
                                 HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
 }
@@ -2871,17 +2946,50 @@ static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
        return err;
 }
 
+static void fast_connectable_complete(struct hci_dev *hdev, u8 status)
+{
+       struct pending_cmd *cmd;
+
+       BT_DBG("status 0x%02x", status);
+
+       hci_dev_lock(hdev);
+
+       cmd = mgmt_pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev);
+       if (!cmd)
+               goto unlock;
+
+       if (status) {
+               cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+                          mgmt_status(status));
+       } else {
+               struct mgmt_mode *cp = cmd->param;
+
+               if (cp->val)
+                       set_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags);
+               else
+                       clear_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags);
+
+               send_settings_rsp(cmd->sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
+               new_settings(hdev, cmd->sk);
+       }
+
+       mgmt_pending_remove(cmd);
+
+unlock:
+       hci_dev_unlock(hdev);
+}
+
 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
                                void *data, u16 len)
 {
        struct mgmt_mode *cp = data;
-       struct hci_cp_write_page_scan_activity acp;
-       u8 type;
+       struct pending_cmd *cmd;
+       struct hci_request req;
        int err;
 
        BT_DBG("%s", hdev->name);
 
-       if (!lmp_bredr_capable(hdev))
+       if (!lmp_bredr_capable(hdev) || hdev->hci_ver < BLUETOOTH_VER_1_2)
                return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
                                  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -2899,40 +3007,39 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 
        hci_dev_lock(hdev);
 
-       if (cp->val) {
-               type = PAGE_SCAN_TYPE_INTERLACED;
+       if (mgmt_pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev)) {
+               err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+                                MGMT_STATUS_BUSY);
+               goto unlock;
+       }
 
-               /* 160 msec page scan interval */
-               acp.interval = __constant_cpu_to_le16(0x0100);
-       } else {
-               type = PAGE_SCAN_TYPE_STANDARD; /* default */
+       if (!!cp->val == test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags)) {
+               err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
+                                       hdev);
+               goto unlock;
+       }
 
-               /* default 1.28 sec page scan */
-               acp.interval = __constant_cpu_to_le16(0x0800);
+       cmd = mgmt_pending_add(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev,
+                              data, len);
+       if (!cmd) {
+               err = -ENOMEM;
+               goto unlock;
        }
 
-       /* default 11.25 msec page scan window */
-       acp.window = __constant_cpu_to_le16(0x0012);
+       hci_req_init(&req, hdev);
 
-       err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp),
-                          &acp);
-       if (err < 0) {
-               err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
-                                MGMT_STATUS_FAILED);
-               goto done;
-       }
+       write_fast_connectable(&req, cp->val);
 
-       err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
+       err = hci_req_run(&req, fast_connectable_complete);
        if (err < 0) {
                err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
                                 MGMT_STATUS_FAILED);
-               goto done;
+               mgmt_pending_remove(cmd);
        }
 
-       err = cmd_complete(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 0,
-                          NULL, 0);
-done:
+unlock:
        hci_dev_unlock(hdev);
+
        return err;
 }
 
@@ -3194,6 +3301,12 @@ static void set_bredr_scan(struct hci_request *req)
        struct hci_dev *hdev = req->hdev;
        u8 scan = 0;
 
+       /* Ensure that fast connectable is disabled. This function will
+        * not do anything if the page scan parameters are already what
+        * they should be.
+        */
+       write_fast_connectable(req, false);
+
        if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
                scan |= SCAN_PAGE;
        if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
@@ -3328,7 +3441,7 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 {
-       struct cmd_lookup match = { NULL, hdev };
+       struct pending_cmd *cmd;
        bool changed = false;
        int err = 0;
 
@@ -3340,14 +3453,10 @@ int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
                        changed = true;
        }
 
-       mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, settings_rsp,
-                            &match);
+       cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
 
        if (changed)
-               err = new_settings(hdev, match.sk);
-
-       if (match.sk)
-               sock_put(match.sk);
+               err = new_settings(hdev, cmd ? cmd->sk : NULL);
 
        return err;
 }