1tpm2_gettestresult(1) General Commands Manual tpm2_gettestresult(1)
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6 tpm2_gettestresult(1) - Get the result of tests performed by the TPM
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9 tpm2_gettestresult [OPTIONS]
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12 tpm2_gettestresult(1) will return the result of the tests conducted by
13 the TPM.
14 Error code will state if the test executed successfully or have failed.
16 If pending algorithms are scheduled to be tested, tpm2_gettestresult
18 will return “TESTING”. Otherwise “FAILED” will be returned or “SUC‐
19 CESS” depending on the result to the test.
20 Manufacturer-dependent information will also be printed in raw hex for‐
22 mat.
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25 This tool accepts no tool specific options.
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28 This collection of options are common to many programs and provide in‐
29 formation that many users may expect.
30 • -h, --help=[man|no-man]: Display the tools manpage. By default, it
32 attempts to invoke the manpager for the tool, however, on failure
33 will output a short tool summary. This is the same behavior if the
34 “man” option argument is specified, however if explicit “man” is re‐
35 quested, the tool will provide errors from man on stderr. If the
36 “no-man” option if specified, or the manpager fails, the short op‐
37 tions will be output to stdout.
38 To successfully use the manpages feature requires the manpages to be
40 installed or on MANPATH, See man(1) for more details.
41 • -v, --version: Display version information for this tool, supported
43 tctis and exit.
44 • -V, --verbose: Increase the information that the tool prints to the
46 console during its execution. When using this option the file and
47 line number are printed.
48 • -Q, --quiet: Silence normal tool output to stdout.
50 • -Z, --enable-errata: Enable the application of errata fixups. Useful
52 if an errata fixup needs to be applied to commands sent to the TPM.
53 Defining the environment TPM2TOOLS_ENABLE_ERRATA is equivalent.
54
56 The TCTI or “Transmission Interface” is the communication mechanism
57 with the TPM. TCTIs can be changed for communication with TPMs across
58 different mediums.
59 To control the TCTI, the tools respect:
61 1. The command line option -T or --tcti
63 2. The environment variable: TPM2TOOLS_TCTI.
65 Note: The command line option always overrides the environment vari‐
67 able.
68 The current known TCTIs are:
70 • tabrmd - The resource manager, called tabrmd
72 (https://github.com/tpm2-software/tpm2-abrmd). Note that tabrmd and
73 abrmd as a tcti name are synonymous.
74 • mssim - Typically used for communicating to the TPM software simula‐
76 tor.
77 • device - Used when talking directly to a TPM device file.
79 • none - Do not initalize a connection with the TPM. Some tools allow
81 for off-tpm options and thus support not using a TCTI. Tools that do
82 not support it will error when attempted to be used without a TCTI
83 connection. Does not support ANY options and MUST BE presented as
84 the exact text of “none”.
85 The arguments to either the command line option or the environment
87 variable are in the form:
88 <tcti-name>:<tcti-option-config>
90 Specifying an empty string for either the <tcti-name> or <tcti-op‐
92 tion-config> results in the default being used for that portion respec‐
93 tively.
94 TCTI Defaults
96 When a TCTI is not specified, the default TCTI is searched for using
97 dlopen(3) semantics. The tools will search for tabrmd, device and
98 mssim TCTIs IN THAT ORDER and USE THE FIRST ONE FOUND. You can query
99 what TCTI will be chosen as the default by using the -v option to print
100 the version information. The “default-tcti” key-value pair will indi‐
101 cate which of the aforementioned TCTIs is the default.
102 Custom TCTIs
104 Any TCTI that implements the dynamic TCTI interface can be loaded. The
105 tools internally use dlopen(3), and the raw tcti-name value is used for
106 the lookup. Thus, this could be a path to the shared library, or a li‐
107 brary name as understood by dlopen(3) semantics.
108
110 This collection of options are used to configure the various known TCTI
111 modules available:
112 • device: For the device TCTI, the TPM character device file for use by
114 the device TCTI can be specified. The default is /dev/tpm0.
115 Example: -T device:/dev/tpm0 or export TPM2TOOLS_TCTI=“de‐
117 vice:/dev/tpm0”
118 • mssim: For the mssim TCTI, the domain name or IP address and port
120 number used by the simulator can be specified. The default are
121 127.0.0.1 and 2321.
122 Example: -T mssim:host=localhost,port=2321 or export TPM2TOOLS_TC‐
124 TI=“mssim:host=localhost,port=2321”
125 • abrmd: For the abrmd TCTI, the configuration string format is a se‐
127 ries of simple key value pairs separated by a `,' character. Each
128 key and value string are separated by a `=' character.
129 • TCTI abrmd supports two keys:
131 1. `bus_name' : The name of the tabrmd service on the bus (a
133 string).
134 2. `bus_type' : The type of the dbus instance (a string) limited to
136 `session' and `system'.
137 Specify the tabrmd tcti name and a config string of bus_name=com.ex‐
139 ample.FooBar:
140 \--tcti=tabrmd:bus_name=com.example.FooBar
142 Specify the default (abrmd) tcti and a config string of bus_type=ses‐
144 sion:
145 \--tcti:bus_type=session
147 NOTE: abrmd and tabrmd are synonymous.
149
151 Get the result of the TPM testing
152 tpm2_gettestresult
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155 This command is the one of the few commands authorized to be submitted
156 to TPM when in failure mode.
157
159 Tools can return any of the following codes:
160 • 0 - Success.
162 • 1 - General non-specific error.
164 • 2 - Options handling error.
166 • 3 - Authentication error.
168 • 4 - TCTI related error.
170 • 5 - Non supported scheme. Applicable to tpm2_testparams.
172
174 Github Issues (https://github.com/tpm2-software/tpm2-tools/issues)
175
177 See the Mailing List (https://lists.linuxfoundation.org/mailman/listin‐
178 fo/tpm2)
179tpm2-tools tpm2_gettestresult(1)