[tpm2] tpm2_pcrread is not working because of tcti-abrmd

[Chenxi Z <cxzhang1981 at hotmail.com>]

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Hi,

Can I know why tpm2 tools is not working. Below are logs. Thank you for the help in advace.

[root(a)myhost ~]# tpm2_pcrread

** (process:3459977): WARNING **: 17:05:49.915: Failed to create connection with service: Timeout was reached
WARNING:tcti:src/tss2-tcti/tctildr.c:79:tcti_from_init() TCTI init for function 0x7f0481c01ac0 failed with a0008
WARNING:tcti:src/tss2-tcti/tctildr.c:109:tcti_from_info() Could not initialize TCTI named: tcti-abrmd
ERROR:tcti:src/tss2-tcti/tctildr-dl.c:150:tcti_from_file() Could not initialize TCTI file: libtss2-tcti-tabrmd.so.0

(and hangs)

[root(a)myhost ~]# cat /etc/os-release
NAME="CentOS Linux"
VERSION="8 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="8"
... ... 


Version info:

[root(a)myhost~]# rpm -qa | grep tpm2
tpm2-tss-2.4.3.x86_64
tpm2-tools-4.3.0.x86_64
tpm2-abrmd-2.3.3.x86_64



[root(a)myhost ~]# service tpm2-abrmd status
Redirecting to /bin/systemctl status tpm2-abrmd.service
● tpm2-abrmd.service - TPM2 Access Broker and Resource Management Daemon
     Loaded: loaded (/usr/lib/systemd/system/tpm2-abrmd.service; enabled; vendor preset: disabled)
     Active: active (running) since Mon 2020-12-14 16:48:42 PST; 15min ago
   Main PID: 3422797 (tpm2-abrmd)
         IO: 0B read, 0B written
      Tasks: 4
     Memory: 2.0M
        CPU: 49ms
     CGroup: /system.slice/tpm2-abrmd.service
             └─3422797 /usr/sbin/tpm2-abrmd

Warning: journal has been rotated since unit was started, output may be incomplete.

Thanks,
Chenxi