If the permanent state was set using SetState() write the permanent
state once we successfully read the volatile state and can use it.
This way we have the state in a file.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Modify TPM_NVRAM_LoadData() to try to get the cached state blob before trying
to read the state blob from the file. We clear the state blob as part of
passing it to the TPM.
A side effect is now that if TPMLIB_ValidateState is called on a blob that
this call would not remove the cached blob. So we have to save a copy before
reading (and parsing) the state blob so we still have it when TPM_MainInit()
is called.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This patch adds APIs for getting and setting all types of state
blobs. We cache these blobs and allow them to be picked up when
the TPM starts. It will get any of these state blobs, if they
were set, before we go out and try to read the state blob from
a file.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
The EK certificates need information about the TPM specification that was
implemented. The best place to get the information from seems the TPM itself.
So we implement a function TPMLIB_GetInfo() to allow to query for the TPM
specification information and possibly other information in the future.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
The logic for invoking the validation of the TPM 1.2 state was
broken. The validation of volatile and save state state requires
that the permanent state is available, so we always load it
first.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Implement TPMLIB_ValidateState(), which is supposed to be used
for checking usability of state blobs before TPMLIB_MainInit()
is called or TPM_Startup has been sent to the TPM.
This function is useful to be called once TPM state blobs
have been migrated to a destination and we need to check
whether libtpms can use these state blobs and if not
we have a chance to fall back to the migration source host.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Extend the previous support of a fixed buffer size to work
with a minimum of 3k and a maximum of 4k.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Also allow to get the minimum and maximum supported buffer size
with the TPMLIB_SetBufferSize() call.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Implement TPMLIB_SetBufferSize() for setting the size of the I/O buffer
that the TPM may advertise. For TPM 1.2 the size remains fixed since the
TIS interface can handle the current 4096 bytes.
This function will be important for TPM 2 with a CRB interface that cannot
handle 4096 bytes.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
When checking for missing symbols we need to add -lc to the libraries
passed to gcc otherwise we always see lots of missing symbols even if
there aren't any.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
LibreSSL on OpenBSD seems to not support the new API of OpenSSL 1.1.
So create a new #define OPENSSL_OLD_API that is set if the old API
is to be used.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Integrate the Travis CI automated build & test with Coverity Scan.
Automatically submit a Coverity Scan if we push to the coverity_scan
branch.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Ignore *.log and *.trs files from the test suite.
Ignore compile and the 'missing' file.
Remove the depcomp file.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Fix the dprintf call to use a format parameter that otherwise causes
errors with gcc on certain platforms.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Fix compilation problems like the following:
/usr/local/lib/libtpms.so: undefined reference to `va_start'
/usr/local/lib/libtpms.so: undefined reference to `va_end'
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
vdprintf with a NULL parameter on the 3rd position crashes
on Linux. Replace it with dprintf.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Add API calls TPMLIB_SetDebugFD(), TPMLIB_SetDebugLevel(),
TPMLIB_SetDebugPrefix().
Convert the internal printing of debugging strings to
correspond to the log level. Print the prefix in front
of every line.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Use 'rpmbuild -ba --define "crypto_subsystem openssl" dist/libtpms.spec'
to build libtpms with openssl.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Add debian build files to enable building of Debian package using for example
debuild -b or dpkg-buildpackage -us -uc
Extend the .gitignore.
The debhelper checks show warnings and errors that will need to be addressed
some other time. For some I don't know how to solve them at the moment.
Signed-off-by: Stefan Berger <stefanb@linux.watson.ibm.com>
Some version of gcc fail with -Wstack-protector due to some functions
not being protectable. Disable this option.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Introduce an internal interface that allows us to reach TPM functionality
from the libary's API layer. This prepares the code for the addition
of a new API function that lets us choose which TPM to use, TPM 1.2 or
TPM2. Currently only TPM 1.2 functionality is available.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Move all TPM1.2 code to src/tpm12 directory. Adapt the Makefile.am
to point to tpm12 directory for the TPM1.2 sources.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
