Bluetooth: Add status parameter to mgmt_disconnect response

Since disconnecting may fail the status needs to be communicated to user
space. This also updates the implementation to match the latest mgmt API
specification.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 5f401e7..a67ff88 100644 (file)
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -919,7 +919,7 @@ int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
                                                                u8 addr_type);
 int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
                                                                u8 addr_type);
-int mgmt_disconnect_failed(struct hci_dev *hdev);
+int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
                                                u8 addr_type, u8 status);
 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index e5a866a..8b07a83 100644 (file)
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -130,6 +130,7 @@ struct mgmt_cp_disconnect {
 } __packed;
 struct mgmt_rp_disconnect {
        bdaddr_t bdaddr;
+       __u8 status;
 } __packed;
 
 #define MGMT_ADDR_BREDR                        0x00

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index bbfaaa8..0d55d00 100644 (file)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1605,27 +1605,27 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff
 
        BT_DBG("%s status %d", hdev->name, ev->status);
 
-       if (ev->status) {
-               hci_dev_lock(hdev);
-               mgmt_disconnect_failed(hdev);
-               hci_dev_unlock(hdev);
-               return;
-       }
-
        hci_dev_lock(hdev);
 
        conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
        if (!conn)
                goto unlock;
 
-       conn->state = BT_CLOSED;
+       if (ev->status == 0)
+               conn->state = BT_CLOSED;
 
-       if (conn->type == ACL_LINK || conn->type == LE_LINK)
-               mgmt_disconnected(hdev, &conn->dst, conn->type,
+       if (conn->type == ACL_LINK || conn->type == LE_LINK) {
+               if (ev->status != 0)
+                       mgmt_disconnect_failed(hdev, &conn->dst, ev->status);
+               else
+                       mgmt_disconnected(hdev, &conn->dst, conn->type,
                                                        conn->dst_type);
+       }
 
-       hci_proto_disconn_cfm(conn, ev->reason);
-       hci_conn_del(conn);
+       if (ev->status == 0) {
+               hci_proto_disconn_cfm(conn, ev->reason);
+               hci_conn_del(conn);
+       }
 
 unlock:
        hci_dev_unlock(hdev);
@@ -2098,7 +2098,7 @@ static inline void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
        case HCI_OP_DISCONNECT:
                if (ev->status != 0)
-                       mgmt_disconnect_failed(hdev);
+                       mgmt_disconnect_failed(hdev, NULL, ev->status);
                break;
 
        case HCI_OP_LE_CREATE_CONN:

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index dddb190..5562c21 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2128,6 +2128,7 @@ static void disconnect_rsp(struct pending_cmd *cmd, void *data)
        struct mgmt_rp_disconnect rp;
 
        bacpy(&rp.bdaddr, &cp->bdaddr);
+       rp.status = 0;
 
        cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, &rp, sizeof(rp));
 
@@ -2176,7 +2177,7 @@ int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
        return err;
 }
 
-int mgmt_disconnect_failed(struct hci_dev *hdev)
+int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status)
 {
        struct pending_cmd *cmd;
        int err;
@@ -2185,7 +2186,17 @@ int mgmt_disconnect_failed(struct hci_dev *hdev)
        if (!cmd)
                return -ENOENT;
 
-       err = cmd_status(cmd->sk, hdev->id, MGMT_OP_DISCONNECT, EIO);
+       if (bdaddr) {
+               struct mgmt_rp_disconnect rp;
+
+               bacpy(&rp.bdaddr, bdaddr);
+               rp.status = status;
+
+               err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
+                                                       &rp, sizeof(rp));
+       } else
+               err = cmd_status(cmd->sk, hdev->id, MGMT_OP_DISCONNECT,
+                                                               status);
 
        mgmt_pending_remove(cmd);