NAME¶

tpm2_nvreadlock - lock the NV index for further reads until the machine is restarted

SYNOPSIS¶

tpm2_nvreadlock[ COMMON OPTIONS ] [ TCTI OPTIONS ] [ --index|--authHandle|--handlePasswd|--passwdInHex| ]

lock the NV index for further reads until the machine is restarted

DESCRIPTION¶

tpm2_nvreadlock lock the NV index for further reads until the machine is restarted

OPTIONS¶

-x ,--index

specifies the index of the NV area.

-a ,--authHandle

specifies the handle used to authorize: 0x40000001 (TPM_RH_OWNER) 0x4000000C (TPM_RH_PLATFORM) {NV_INDEX_FIRST:NV_INDEX_LAST}

-P ,--handlePasswd

specifies the password of authHandle.

-X ,--passwdInHex

passwords given by any options are hex format

[COMMON OPTIONS ]

This collection of options are common to many programs and provide information that many users may expect.

-h, --help

Display a manual describing the tool and its usage.

-v, --version

Display version information for this tool.

-V, --verbose

Increase the information that the tool prints to the console during its execution.

[TCTI OPTIONS ]

This collection of options are used to configure the varous TCTI modules available.

-T, --tcti

Select the TCTI used for communication with the next component down the TSS stack. In most configurations this will be the TPM but it could be a simulator or proxy. Supported TCTIs are or “device” or “socket” .

-d, --device-file

Specify the TPM device file for use by the device TCTI. The default is /dev/tpm0.

-R, --socket-address

Specify the domain name or IP address used by the socket TCTI. The default is 127.0.0.1.

-p, --socket-port

Specify the port number used by the socket TCTI. The default is 2321.

ENVIRONMENT: TCTI

This collection of environment variables that may be used to configure the varous TCTI modules available. The values passed through these variables can be overridden on a per-command basis using the available command line options.

TPM2TOOLS_TCTI_NAME

Select the TCTI used for communication with the next component down the TSS stack. In most configurations this will be the TPM but it could be a simulator or proxy. See 'OPTIONS' section for the names of supported TCTIs.

TPM2TOOLS_DEVICE_FILE

Specify the TPM device file for use by the device TCTI.

TPM2TOOLS_SOCKET_ADDRESS

Specify the domain name or IP address used by the socket TCTI.

TPM2TOOLS_SOCKET_PORT

Specify the port number used by the socket TCTI.

EXAMPLES¶

tpm2_nvreadlock

tpm2_nvreadlock -x 0x1500016 -a 0x40000001 -P passwd
tpm2_nvreadlock -x 0x1500016 -a 0x40000001 -P 1a1b1c -X