NAME

       tpm2-abrmd - TPM2 access broker and resource management daemon

SYNOPSIS

       tpm2-abrmd [-m][-e][-i][-o][-l logger-name][-r][-s][-g /dev/urandom][-t conf]

DESCRIPTION

       tpm2-abrmd  is  a  daemon  that implements the TPM access broker and resource manager as described by the
       Trusted Computing Group (TGC) in the “TSS  System  Level  API  and  TPM  Command  Transmission  Interface
       Specification”.  This daemon uses the DBus system bus and some pipes to communicate with clients.

OPTIONS

       -t, --tcti
              Provide the daemon with a string that describes the TCTI and how to configure it for communication
              with  the  next  component  down the TSS2 stack. This string is formatted as "tcti-name:tcti-conf"
              where:

              'tcti-name'
                     The name of the TCTI library shared  object  file.  Libraries  are  found  using  the  same
                     algorithm  as  dlopen  (3).  If  the  TCTI library file name follows the naming convention:
                     libtss2-tcti-<name>.so.0 where <name> is the name for the TCTI, the value of <name> may  be
                     supplied in place of the full library file name. See 'EXAMPLES' below.

              'tcti-conf'
                     The configuration string passed to the TCTI library upon initialization.

              If  this option is omitted (or a NULL string provided) then a default TCTI is used in it's default
              configuration. If the string does not contain a colon then it will  be  interpreted  as  only  the
              'tcti-name'.  To  provide  only  the  configuration string (using the default TCTI) then the first
              character in the string passed to this option must  be  a  colon  followed  by  the  configuration
              string. See examples below.

       -o, --allow-root
              Allow  daemon to run as root. If this option is not provided the daemon will refused to run as the
              root user. Use of this option is not recommended.

       -m, --max-connections
              Set an upper bound on the number of concurrent client connections allowed.  Once  this  number  of
              client connections is reached new connections will be rejected with an error. If the option is not
              specified the default is 27.

       -f, --flush-all
              Flush all objects and sessions when daemon is started.

       -l, --logger
              Direct  logging  output  to  named logging target. Supported targets are stdout and syslog. If the
              logger option is not specified the default is stdout.

       -e, --max-sessions
              Set and upper bound on the number of sessions that each client connection  is  allowed  to  create
              (loaded or active) at any one time. If the option is not specified the default is 4.

       -r, --max-transients
              Set an upper bound on the number of transient objects that each client connection allowed to load.
              Once  this  number  of  objects  is reached attempts to load new transient objects will produce an
              error. If the option is not specified the default is 27.

       -n, --dbus-name
              Claim the given name on dbus. This option overrides the default of com.intel.tss2.Tabrmd.

       -g, --prng-seed-file
              Read seed for pseudo-random number generator from the provided file.

       -s, --session
              Connect daemon to the session dbus. If the option is not specified  the  daemon  connects  to  the
              system dbus.

       -v, --version
              Display version string.

EXAMPLES

       Execute daemon with default TCTI and options:
          tpm2-abrmd

       Execute daemon with default TCTI and provided config string:
          tpm2-abrmd --tcti=":/dev/tpm0"

       This is equivalent to:
          tpm2-abrmd --tcti="device:/dev/tpm0"
          tpm2-abrmd --tcti="libtss2-tcti-device.so.0:/dev/tpm0"

       Have daemon use swtpm TPM2 Simulator tcti library
          ´libtss2-tcti-swtpm.so.0´.  This connects to a TPM2 simulator via a TCP swtpm.
          tpm2-abrmd --tcti="swtpm"
          tpm2-abrmd --tcti="libtss2-tcti-swtpm.so.0"

       Have daemon use tcti library ´libtss2-tcti-swtpm.so.0´ and config string
          ´host=127.0.0.1,port=5555´: tpm2-abrmd --tcti=swtpm:host=127.0.0.1,port=5555"
          tpm2-abrmd --tcti="libtss2-tcti-swtpm.so.0:host=127.0.0.1,port=5555"

AUTHOR

       Philip Tricca <philip.b.tricca@intel.com>

SEE ALSO

       tcsd(8)

COLOPHON

       This  page  is  part  of  the 3.0.0 release of Intel's TPM2 Access Broker & Resource Management Daemon. A
       description of the project, information about reporting bugs, and the latest version of this page can  be
       found at https://github.com/01org/tpm2-abrmd/.

Intel                                              March 2018                                      TPM2-ABRMD(8)