Bluetooth: Add read_local_oob_data management command

This patch adds a command to read local OOB data to the managment interface.
The command maps directly to the Read Local OOB Data HCI command.

Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 83 insertions, 0 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 93f0f04c8bcd..33b1f7400dab 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1296,6 +1296,55 @@ failed:
         return err;
 }
 
+static int read_local_oob_data(struct sock *sk, u16 index)
+{
+        struct hci_dev *hdev;
+        struct pending_cmd *cmd;
+        int err;
+
+        BT_DBG("hci%u", index);
+
+        hdev = hci_dev_get(index);
+        if (!hdev)
+                return cmd_status(sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
+                                                                        ENODEV);
+
+        hci_dev_lock_bh(hdev);
+
+        if (!test_bit(HCI_UP, &hdev->flags)) {
+                err = cmd_status(sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
+                                                                ENETDOWN);
+                goto unlock;
+        }
+
+        if (!(hdev->features[6] & LMP_SIMPLE_PAIR)) {
+                err = cmd_status(sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
+                                                                EOPNOTSUPP);
+                goto unlock;
+        }
+
+        if (mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, index)) {
+                err = cmd_status(sk, index, MGMT_OP_READ_LOCAL_OOB_DATA, EBUSY);
+                goto unlock;
+        }
+
+        cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, index, NULL, 0);
+        if (!cmd) {
+                err = -ENOMEM;
+                goto unlock;
+        }
+
+        err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
+        if (err < 0)
+                mgmt_pending_remove(cmd);
+
+unlock:
+        hci_dev_unlock_bh(hdev);
+        hci_dev_put(hdev);
+
+        return err;
+}
+
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 {
         unsigned char *buf;
@@ -1394,6 +1443,10 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
         case MGMT_OP_SET_LOCAL_NAME:
                 err = set_local_name(sk, index, buf + sizeof(*hdr), len);
                 break;
+        case MGMT_OP_READ_LOCAL_OOB_DATA:
+                err = read_local_oob_data(sk, index);
+                break;
+
         default:
                 BT_DBG("Unknown op %u", opcode);
                 err = cmd_status(sk, index, opcode, 0x01);
@@ -1723,3 +1776,33 @@ failed:
                 mgmt_pending_remove(cmd);
         return err;
 }
+
+int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
+                                                                u8 status)
+{
+        struct pending_cmd *cmd;
+        int err;
+
+        BT_DBG("hci%u status %u", index, status);
+
+        cmd = mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, index);
+        if (!cmd)
+                return -ENOENT;
+
+        if (status) {
+                err = cmd_status(cmd->sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
+                                                                        EIO);
+        } else {
+                struct mgmt_rp_read_local_oob_data rp;
+
+                memcpy(rp.hash, hash, sizeof(rp.hash));
+                memcpy(rp.randomizer, randomizer, sizeof(rp.randomizer));
+
+                err = cmd_complete(cmd->sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
+                                                        &rp, sizeof(rp));
+        }
+
+        mgmt_pending_remove(cmd);
+
+        return err;
+}