Bluetooth: mgmt: Add support for Set SSP command

The Set SSP mgmt command can be used for enabling and disabling Secure
Simple Pairing support for controllers that support it.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 66f84ad..43e0b1e 100644 (file)
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -995,6 +995,7 @@ int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
                                                u8 addr_type, u8 status);
 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
+int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 status);
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
                                                u8 *randomizer, u8 status);

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 239e9fb..179d127 100644 (file)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -447,7 +447,7 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
        BT_DBG("%s status 0x%x", hdev->name, status);
 
        if (status)
-               return;
+               goto done;
 
        sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
        if (!sent)
@@ -457,6 +457,10 @@ static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
                set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
        else
                clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+
+done:
+       if (test_bit(HCI_MGMT, &hdev->dev_flags))
+               mgmt_ssp_enable_complete(hdev, status);
 }
 
 static u8 hci_get_inquiry_mode(struct hci_dev *hdev)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0c9fbb4..36c4ff6 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1023,6 +1023,64 @@ failed:
        return err;
 }
 
+static int set_ssp(struct sock *sk, u16 index, void *data, u16 len)
+{
+       struct mgmt_mode *cp = data;
+       struct pending_cmd *cmd;
+       struct hci_dev *hdev;
+       uint8_t val;
+       int err;
+
+       BT_DBG("request for hci%u", index);
+
+       if (len != sizeof(*cp))
+               return cmd_status(sk, index, MGMT_OP_SET_SSP,
+                                               MGMT_STATUS_INVALID_PARAMS);
+
+       hdev = hci_dev_get(index);
+       if (!hdev)
+               return cmd_status(sk, index, MGMT_OP_SET_SSP,
+                                               MGMT_STATUS_INVALID_PARAMS);
+
+       hci_dev_lock(hdev);
+
+       if (!test_bit(HCI_UP, &hdev->flags)) {
+               err = cmd_status(sk, index, MGMT_OP_SET_SSP,
+                                               MGMT_STATUS_NOT_POWERED);
+               goto failed;
+       }
+
+       if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) {
+               err = cmd_status(sk, index, MGMT_OP_SET_SSP, MGMT_STATUS_BUSY);
+               goto failed;
+       }
+
+       val = !!cp->val;
+
+       if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) {
+               err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
+               goto failed;
+       }
+
+       cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
+       if (!cmd) {
+               err = -ENOMEM;
+               goto failed;
+       }
+
+       err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val);
+       if (err < 0) {
+               mgmt_pending_remove(cmd);
+               goto failed;
+       }
+
+failed:
+       hci_dev_unlock(hdev);
+       hci_dev_put(hdev);
+
+       return err;
+}
+
 static int add_uuid(struct sock *sk, u16 index, void *data, u16 len)
 {
        struct mgmt_cp_add_uuid *cp = data;
@@ -2505,6 +2563,9 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
        case MGMT_OP_SET_LINK_SECURITY:
                err = set_link_security(sk, index, cp, len);
                break;
+       case MGMT_OP_SET_SSP:
+               err = set_ssp(sk, index, cp, len);
+               break;
        case MGMT_OP_ADD_UUID:
                err = add_uuid(sk, index, cp, len);
                break;
@@ -3052,6 +3113,30 @@ int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
        return err;
 }
 
+int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 status)
+{
+       struct cmd_lookup match = { NULL, hdev };
+       __le32 ev;
+       int err;
+
+       if (status) {
+               u8 mgmt_err = mgmt_status(status);
+               mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev,
+                                               cmd_status_rsp, &mgmt_err);
+               return 0;
+       }
+
+       mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
+
+       ev = cpu_to_le32(get_current_settings(hdev));
+       err = mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), match.sk);
+
+       if (match.sk)
+               sock_put(match.sk);
+
+       return err;
+}
+
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
 {
        struct pending_cmd *cmd;