On 01/09/2017 02:18 PM, James Bottomley wrote:
> On Mon, 2017-01-09 at 13:52 -0500, Stefan Berger wrote:
>> On 01/09/2017 01:51 PM, James Bottomley wrote:
>>> On Mon, 2017-01-09 at 13:41 -0500, Stefan Berger wrote:
>>>> On 01/09/2017 01:24 PM, James Bottomley wrote:
>>>>> On Mon, 2017-01-09 at 13:03 -0500, Stefan Berger wrote:
>>>>>> Examples:
>>>>>> ./src/vtpmctrl --tpm2 \
>>>>>> --spawn /bin/swtpm chardev --tpm2 --fd %fd --tpmstate
>>>>>> dir=/tmp
>>>>> git head for swtpm is giving
>>>>>
>>>>> Created TPM device /dev/tpm1; vTPM device has fd 4, major/minor
>>>>> =
>>>>> 247/1.
>>>>> chardev: unrecognized option '--tpm2'
>>>> You need the tpm2-preview branches of libtpms and swtpm. Why you
>>>> need
>>>> them is related to the format in which the persistent data are
>>>> written by the TPM 2 implementation. For QEMU it should probably
>>>> big
>>>> endian, but so far it's not.
>>>>
>>>> Here's a short wiki of libtpms pointing out the issues.
>>>>
>>>> https://github.com/stefanberger/libtpms/wiki
>>>>
>>>> https://github.com/stefanberger/libtpms/tree/tpm2-previewa.rev138
>>>> https://github.com/stefanberger/swtpm/tree/tpm2-preview
>>> Basically the synopsis is that it's not yet working well enough to
>>> run the resource manager smoke tests and I need to continue using
>>> the ibmswtpm2 as the emulator or run against the real thing for the
>>> time being.
>> Have you tried it ?
> Git head of the tpm2-preview branch of libtpms isn't building for me:
>
> tpm2/ExecCommand.c: In function 'ExecuteCommand':
> tpm2/ExecCommand.c:434:37: error: 'commandIndex' may be used
> uninitialized in this function [-Werror=maybe-uninitialized]
> buffer = MemoryGetResponseBuffer(commandIndex);
> ^
> cc1: all warnings being treated as errors
>
> I also think you probably need this patch
>
> James
>
> ---
>
> diff --git a/configure.ac b/configure.ac
> index e84bc0f..4ab149d 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -125,7 +125,7 @@ openssl)
> esac
>
> AC_ARG_WITH([tpm2],
> - AC_HELP_STRING([--wih-tpm2],
> + AC_HELP_STRING([--with-tpm2],
> [build libtpms with TPM2 support (experimental)]),
> AC_MSG_RESULT([Building with TPM2 support])
> #if test "x$cryptolib" = "xfreebl"; then
Thanks. I fixed this now to make it at least compilable. The more recent
branch is the tpm2-preview.rev138, which makes that other branch more or
less obsolete.
Stefan
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