tpm_setactive - Online Linux Manual Page

Section : 8
Updated : 2005-05-06
Source : TPM Management

TPM Management - tpm_setactive

NAME

tpm_setactive − change TPM active states

SYNOPSIS

tpm_setactive

[

OPTION

]

DESCRIPTION

tpm_setactive

reports the status of the TPM's flags regarding the active state of the TPM. This is the default behavior and also accessible via the

−−status

option. Requesting a report of this status prompts for the owner password. The

−−active

option changes the TPM to the active state (via the TPM_PhysicalSetDeactivated API). This operation requires evidence of physical presence, is persistent and requires a reboot to take affect. The

−−inactive

option (via the TPM_PhysicalSetDeactivated API) changes the TPM to the inactive state. This operation requires evidence of physical presence, is persistent and requires a reboot to take affect. An inactive TPM is essentially off but still allows for a tpm_takeownership to occur. The

−−temp

option causes deactivation (via the TPM_SetTempDeactivated API) to happen immediately but only endure for the current boot cycle. The

−−status

−−active

−−inactive

, and

−−temp

options are mutually exclusive and the last one on the command line will be carried out.

−h

−−help

Display command usage info.

-v

−−version

Display command version info.

-l

−−log

[none|error|info|debug]

Set logging level.

-u

−−unicode

Use TSS UNICODE encoding for passwords to comply with applications using TSS popup boxes

-s

−−status

Report the status of flags regarding the TPM active states.

-a

−−active

Make the TPM active. Operation is persistent, requires phyiscal presence to authorize, and a reboot to take affect.

-i

−−inactive

Make the TPM inactive. Operation is persistent, requires phyiscal presence to authorize, and a reboot to take affect.

-t

−−temp

Makes the TPM inactive for the current boot cycle only.

-z

−−well-known

Authenticate using 20 bytes of zeros as owner password (the default TSS Well Known Secret), instead of prompting for an owner password.