Bluetooth: mgmt: Restrict BR/EDR settings to BR/EDR-only adapters

This patch makes sure that settings which are specific for BR/EDR
capable adapters are not allowed for non-BR/EDR (e.g. LE-only) adapters.
Instead, a "not supported" error is returned of such a setting is
attempted to be set for a non-BR/EDR adapter.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

1 files changed, 19 insertions, 3 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index e86d08731b4e..11cabe7ef3c6 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -376,15 +376,15 @@ static u32 get_supported_settings(struct hci_dev *hdev)
         u32 settings = 0;
 
         settings |= MGMT_SETTING_POWERED;
-        settings |= MGMT_SETTING_CONNECTABLE;
-        settings |= MGMT_SETTING_FAST_CONNECTABLE;
-        settings |= MGMT_SETTING_DISCOVERABLE;
         settings |= MGMT_SETTING_PAIRABLE;
 
         if (lmp_ssp_capable(hdev))
                 settings |= MGMT_SETTING_SSP;
 
         if (lmp_bredr_capable(hdev)) {
+                settings |= MGMT_SETTING_CONNECTABLE;
+                settings |= MGMT_SETTING_FAST_CONNECTABLE;
+                settings |= MGMT_SETTING_DISCOVERABLE;
                 settings |= MGMT_SETTING_BREDR;
                 settings |= MGMT_SETTING_LINK_SECURITY;
         }
@@ -867,6 +867,10 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 
         BT_DBG("request for %s", hdev->name);
 
+        if (!lmp_bredr_capable(hdev))
+                return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
+                                 MGMT_STATUS_NOT_SUPPORTED);
+
         timeout = __le16_to_cpu(cp->timeout);
         if (!cp->val && timeout > 0)
                 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
@@ -962,6 +966,10 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 
         BT_DBG("request for %s", hdev->name);
 
+        if (!lmp_bredr_capable(hdev))
+                return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
+                                  MGMT_STATUS_NOT_SUPPORTED);
+
         hci_dev_lock(hdev);
 
         if (!hdev_is_powered(hdev)) {
@@ -1060,6 +1068,10 @@ static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
 
         BT_DBG("request for %s", hdev->name);
 
+        if (!lmp_bredr_capable(hdev))
+                return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
+                                  MGMT_STATUS_NOT_SUPPORTED);
+
         hci_dev_lock(hdev);
 
         if (!hdev_is_powered(hdev)) {
@@ -2594,6 +2606,10 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 
         BT_DBG("%s", hdev->name);
 
+        if (!lmp_bredr_capable(hdev))
+                return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
+                                  MGMT_STATUS_NOT_SUPPORTED);
+
         if (!hdev_is_powered(hdev))
                 return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
                                   MGMT_STATUS_NOT_POWERED);