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authorLokendra Singh <lokendra.singh@intel.com>2021-03-23 11:59:02 -0700
committerMarcel Holtmann <marcel@holtmann.org>2021-03-25 16:10:53 +0100
commit7de3a42cdc701f4fb09bb4906d69f4014db4af09 (patch)
treeb95cbba98a316c8d799906ce49a0d0eddd7d0daf /drivers/bluetooth
parent604b3cf87fd217ac7d7aeaa94b0bebdf139a8c88 (diff)
downloadlinux-7de3a42cdc701f4fb09bb4906d69f4014db4af09.tar.bz2
Bluetooth: btintel: Reorganized bootloader mode tlv checks in intel_version_tlv parsing
This moves limited_cce and sbe_type checks under bootloader during tlv parsing as operational firmware don't have access to these values. Any attempt to read such values in operational firmware will only fetch garbage data. Signed-off-by: Lokendra Singh <lokendra.singh@intel.com> Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Tested-by: Tedd Ho-Jeong An <tedd.an@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btintel.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index bddaa4f32566..4ddbf895c382 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -434,26 +434,26 @@ int btintel_version_info_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver
return -EINVAL;
}
- /* It is required that every single firmware fragment is acknowledged
- * with a command complete event. If the boot parameters indicate
- * that this bootloader does not send them, then abort the setup.
- */
- if (version->limited_cce != 0x00) {
- bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)",
- version->limited_cce);
- return -EINVAL;
- }
-
- /* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */
- if (version->sbe_type > 0x01) {
- bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)",
- version->sbe_type);
- return -EINVAL;
- }
-
switch (version->img_type) {
case 0x01:
variant = "Bootloader";
+ /* It is required that every single firmware fragment is acknowledged
+ * with a command complete event. If the boot parameters indicate
+ * that this bootloader does not send them, then abort the setup.
+ */
+ if (version->limited_cce != 0x00) {
+ bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)",
+ version->limited_cce);
+ return -EINVAL;
+ }
+
+ /* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */
+ if (version->sbe_type > 0x01) {
+ bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)",
+ version->sbe_type);
+ return -EINVAL;
+ }
+
bt_dev_info(hdev, "Device revision is %u", version->dev_rev_id);
bt_dev_info(hdev, "Secure boot is %s",
version->secure_boot ? "enabled" : "disabled");