| What: /sys/bus/thunderbolt/devices/.../domainX/security |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute holds current Thunderbolt security level |
| set by the system BIOS. Possible values are: |
| |
| none: All devices are automatically authorized |
| user: Devices are only authorized based on writing |
| appropriate value to the authorized attribute |
| secure: Require devices that support secure connect at |
| minimum. User needs to authorize each device. |
| dponly: Automatically tunnel Display port (and USB). No |
| PCIe tunnels are created. |
| |
| What: /sys/bus/thunderbolt/devices/.../authorized |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute is used to authorize Thunderbolt devices |
| after they have been connected. If the device is not |
| authorized, no devices such as PCIe and Display port are |
| available to the system. |
| |
| Contents of this attribute will be 0 when the device is not |
| yet authorized. |
| |
| Possible values are supported: |
| 1: The device will be authorized and connected |
| |
| When key attribute contains 32 byte hex string the possible |
| values are: |
| 1: The 32 byte hex string is added to the device NVM and |
| the device is authorized. |
| 2: Send a challenge based on the 32 byte hex string. If the |
| challenge response from device is valid, the device is |
| authorized. In case of failure errno will be ENOKEY if |
| the device did not contain a key at all, and |
| EKEYREJECTED if the challenge response did not match. |
| |
| What: /sys/bus/thunderbolt/devices/.../key |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: When a devices supports Thunderbolt secure connect it will |
| have this attribute. Writing 32 byte hex string changes |
| authorization to use the secure connection method instead. |
| |
| What: /sys/bus/thunderbolt/devices/.../device |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute contains id of this device extracted from |
| the device DROM. |
| |
| What: /sys/bus/thunderbolt/devices/.../device_name |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute contains name of this device extracted from |
| the device DROM. |
| |
| What: /sys/bus/thunderbolt/devices/.../vendor |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute contains vendor id of this device extracted |
| from the device DROM. |
| |
| What: /sys/bus/thunderbolt/devices/.../vendor_name |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute contains vendor name of this device extracted |
| from the device DROM. |
| |
| What: /sys/bus/thunderbolt/devices/.../unique_id |
| Date: Sep 2017 |
| KernelVersion: 4.13 |
| Contact: thunderbolt-software@lists.01.org |
| Description: This attribute contains unique_id string of this device. |
| This is either read from hardware registers (UUID on |
| newer hardware) or based on UID from the device DROM. |
| Can be used to uniquely identify particular device. |
