Commit Graph

1293 Commits

Author SHA1 Message Date
Stefan Berger
b97c3bb776 tpm2: Check for n < 0 from asprintf before return
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-24 09:32:02 -04:00
Stefan Berger
27ceda7173 tpm2: Cast void * to BYTE * when doing arithmetic
To avoid warnings from the static analyzer cast void * to BYTE *
when doing arithmetic.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-24 09:32:02 -04:00
Stefan Berger
3b5b842e16 tpm2: Use mgs parameter in error log message
Use unused msg parameter in error log message

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-24 09:32:02 -04:00
Stefan Berger
11dfb9a611 tpm2: Check context hash algorithm with static assert
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 21:17:21 -04:00
Stefan Berger
8b3efff19e tpm2: Add const qualifier to char array in StringToUint32
Only constant strings will be passed to StringToUint32 and therefore
add the const qualifier.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 21:17:21 -04:00
Stefan Berger
e6c1ac7062 tpm2: Declare constant string as const char *
Only constant strings will be assigned to the static array, so make the
name field also a const char *.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 21:17:21 -04:00
Stefan Berger
3b0bc31692 build-sys: Set -Wshadow to avoid shadowing variables
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 19:39:55 -04:00
Stefan Berger
7cbdd6113d tpm2: Rename variable to avoid clashes with type and shadowing
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 19:39:55 -04:00
Stefan Berger
0903c69105 tpm2: Rename block_skip to block_skip_t to avoid shadowing
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 19:39:55 -04:00
Stefan Berger
a811c35fca tpm2: Rename buffer to objbuf to avoid shadowing buffer variable
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-23 19:39:55 -04:00
Stefan Berger
e898872637 tpm2: Adjust selection of StateFormatLevel
When a non-modifyable profile is chosen then copy the StateFormatLevel
(SFL) from the internal profile as before. A reason for copying the SFL
is also because the user is not allowed to make modifications to this
type of profile. Otherwise, if the user chooses a modifyable profile,
then let the user choose the StateFormatLevel.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-13 17:04:38 -04:00
Stefan Berger
46548da8ed tpm2: Add missing break statement
Add a missing break statement that was forgotten in recent
commit b389781f49.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-11 19:01:26 -04:00
Stefan Berger
c7baa7e1ac tpm2: Deduplicate verbs in Commands, Algorithms and Attributes in profile
Deduplicate verbs in Commands, Algorithms, and Attributes strings in a
profile and when a verb with an '=' sign is found, such as
ecc-min-size=224, and there is a duplicate later in the string, such as
ecc-min-size=256, then keep the last one.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-11 16:14:08 -04:00
Stefan Berger
7d95e9ce41 tpm2: Remove test case for OpenSSL SSKDF to KDFe comparison
Remove the test case and renaming of the reference implementation of
CryptKDFe. Reverting this patch would bring the test case back in case
it was necessary.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:56:44 -04:00
Stefan Berger
2ff2f84170 tests: Rename reference KDFe implemention to ReferenceCryptKDFe for tests
To still be able to run the KDFe test case when the OpenSSL replacement
for the KDFe is to be used, rename the reference implemention to
ReferenceCryptKDFe that coexists with the CryptKDFe function that then
calls OSSLCryptKDFe.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:56:44 -04:00
Stefan Berger
209b9adcd3 tpm2: Use OpenSSL-based KDFe implementation if possible
Use the OpenSSL-based KDFe implementation when USE_OPENSSL_FUNCTIONS_SSKDF
is set.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:56:44 -04:00
Stefan Berger
c0dcce5afd tests: Add KDFe replacement by OpenSSL 'SSKDF' and test case
Implement a KDFe replacement using OpenSSL's SSKDF and add a test
case that compares the current implementation against the one based
on the OpenSSL SSKDF.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:56:44 -04:00
Stefan Berger
37ca5d3ddb build-sys: Check for availability of SSKDF (KDFe) in OpenSSL
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:56:44 -04:00
Stefan Berger
d635ef81e2 tpm2: Prevent HMAC creation & verification with sha1: no-sha1-hmac
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:43:05 -04:00
Stefan Berger
24afa414ff tpm2: Prevent HMAC verification with sha1: no-sha1-hmac-verification
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:43:05 -04:00
Stefan Berger
b389781f49 tpm2: Prevent HMAC creation with sha1: no-sha1-hmac-creation
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-09 14:43:05 -04:00
Stefan Berger
e983cdf05c tpm2: Display RuntimeAttributes as part of TPMLIB_GetInfo
Display RuntimeAttributes as part of TPMLIB_GetInfo when the flag
'128' (0x80) is set.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
38a2ad9e1b tpm2: Implement RuntimeAttributesGet to print out attributes
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
e197df642b tpm2: Implement attribute for FIPS-enabled host: fips-host
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
2d8d6a256c tpm2: Prevent SHA1 signature verification: no-sha1-verification
Prevent SHA1 signature verification like FIPS mode on the host does
by implementing attribute no-sha1-signing.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
2fc551ffbc tpm2: Prevent SHA1 signature generation using new flag: no-sha1-signing
Prevent SHA1 signature generation like FIPS mode on the host does
for RSA and all ECC (ecdsa, ecdaa, ecschnorr, sm2) signing algorithms
by implementing attribute no-sha1-signing.
Since CryptRSASign and CryptEccSign are called from CryptSign the
check for SHA1 can be done there. The other call locations are
from the algorithm test functions where the default hash is SHA512.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
2db51d0f88 tpm2: Prevent unpadded/raw RSA en- and decryption: no-unpadded-encryption
Implement attribute no-unpadded-encrytion to prevent unpadded/raw RSA
encryption and decryption.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
2a296082f0 tpm2: Implement function checking attributeFlags
Implement function to check whether a profile requires attribute
flags to be 'enforced'.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
45467a2d83 tpm2: Implement support for RuntimeAttributes (StateFormatLevel 7)
Implement support for RuntimeAttributes which will be provided using
the Attribute key in the map.

Implement a fip-host attribute that at this point does not do much.

Add test case for fips-host attribute.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-09-03 10:28:55 -04:00
Stefan Berger
f5518e596e tests: Use free rather than TPM_Free (OS/X)
Use free rather than TPM_Free to avoid the following warning:

tpm2_setprofile.c:377:18: warning: passing 'char *' to parameter \
  of type 'unsigned char *' converts between pointers to integer \
  types with different sign [-Wpointer-sign]

        TPM_Free(profile);

../include/libtpms/tpm_memory.h:57:36: note: passing argument to \
  parameter 'buffer' here

void       TPM_Free(unsigned char *buffer);

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-30 18:27:26 -04:00
Stefan Berger
16e648e98f tpm2: Implement TPMLIB_WasManufactured API call
Implement TPMLIB_WasManufactured API call for a TPM 2 so that callers can
detect whether a TPM 2 instance was newly created and therefore the
profile that was set was also applied.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-30 16:25:47 -04:00
Stefan Berger
2dc1af12e5 rev180: Add missing entry to sieveMarks array
Add the missing entry to the sieveMarks array. The new entry would only
be used for RSA 3072 keys but due to the following change in
RsaAdjustPrimeLimit it will not be used.

  primeLimit = s_LastPrimeInTable - 2;  // libtpms: Fix for 3072 bit keys to avoid mark=5

If it was to be used (above change removed) it would occasionally produce
different RSA 3072 prime numbers from the TPM's seeds and therefore any
change to the above will have to depend on the SEED_COMPAT_LEVEL so that
the same keys are always produced.

Use the full sieveMarks array to generate RSA 3072 keys when
SEED_COMPAT_LEVEL > SEED_COMPAT_LEVEL_RSA_PRIME_ADJUST_PREREV169,
otherwise keep the previous adjustment to avoid mark=5.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-21 10:54:23 -04:00
Stefan Berger
c63fd3f765 rev183: Sync ActGetCapabilityData with upstream
Since go.preservedSignaled is not available due to __ACT_DISABLED being defined
apply the same conditional code enablement here.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-20 15:28:21 -04:00
Stefan Berger
046ee612ac rev183: Sync _plat__Signal_PowerOff with upstream
Since ACT_SUPPORT is set to YES in libtpms this change has no effect.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-20 15:28:21 -04:00
Stefan Berger
89092a12f9 rev183: Update TPM_SPEC_VERSION and related defines to reflect rev183
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-20 13:17:28 -04:00
Stefan Berger
037eb0e2bb tpm2: Return TPM_RC_VALUE upon decryption failure
When decryption fails then return TPM_RC_VALUE rather than TPM_RC_FAILURE.
The old error code could indicate to an application or driver that
something is wrong with the TPM (has possibly gone into failure mode) even
though only the decryption failed, possibly due to a wrong key.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-20 10:46:50 -04:00
Stefan Berger
d3ce650f93 tpm2: Include limits.h for UINT_MAX (BSD)
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-08-20 10:16:02 -04:00
Stefan Berger
4b89a028dd rev180: Sync whitespace changes and changes to comments
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
2024-07-29 11:25:31 -04:00
Stefan Berger
ca3d592758 rev180: Add new function to generate RSA primes but do not use it
Some time around rev169 a new function to generate RSA prime numbers was
introduced. Add this function but keep it disabled.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-29 08:43:35 -04:00
Stefan Berger
09a67f4588 tpm2: Move code out of RsaAdjustPrimeCandidate
To simplify the code and get rid of the libtpms-specific implementation
of RsaAdjustPrimeCandidate move its code into the case statements in
TpmRsa_GeneratePrimeForRSA.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-29 08:43:35 -04:00
Stefan Berger
aa582228d6 tpm2: Move RsaAdjustPrimeCandidate_New
Revision 1.69 received new code for RsaAdjustPrimeCandidate. Before
adding the new function (while keeping it unused since it does not
add much value) move the existing function.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-29 08:43:35 -04:00
Stefan Berger
a5affce5cd rev180: Add TpmMath_GetRandomBits but disable it since unused.
Add TPmMath_GetRandomBits but disable it since it will remain unused
for now.

Modify the code to properly mask the bits in the first byte of the byte
stream produced as big endian number.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-29 08:43:35 -04:00
Stefan Berger
247a100cd8 tpm2: Add ecc-sm2-p256 to all profiles
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-26 22:34:38 -04:00
Stefan Berger
ea68ece7a7 tpm2: Disable curves whose keysize is too small and than can be disabled
When ecc-min-size is given use it to disable all curves whose keysize is
too small and that can be disabled.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-26 22:34:38 -04:00
Stefan Berger
37c5b7d546 tpm2: Fix display of disabled elliptic curve algorithms
If elliptic curve algorithms were enabled with a shortcut the output
may have shown the individual curves as disabled, even though this is
not the case. Remove the enabledEccCurvesPrint bitfield since it
leads to misleading output.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-26 22:34:38 -04:00
Stefan Berger
869bfa53d9 tpm2: Prevent list of disabled algorithms to start with a comma
The list of disabled algorithms may have started with a comma if the first
disabled algorithm was an ec curve. Fix this by passing the 'first'
variable and using it.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-26 22:34:38 -04:00
Stefan Berger
18cffed604 tests: Use %zu for size_t
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-26 22:34:38 -04:00
Stefan Berger
1df35f6c77 tpm2: Change marshalled fields of OBJECT (StateFormatLevel 6)
Bump up the StateFormatLevel to 6 and use it to introduce a new OBJECT
marshalling format version '4' that slighly changes how an OBJECT is
marshalled:

- only marshal the private exponent for an RSA key
- always marshal the new hierarchy field

The marshalling code can still write previous version '3' when an older
StateFormatLevel is used to support backwards compatibility.

Adjust the test cases marshalling an RSA key OBJECT to check against
expected sizes across a series of StateFormatLevels.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-25 11:17:42 -04:00
Stefan Berger
67447f6c88 rev180: Add but not enable new Svn- and FirmwareLimited hierarchies
Introduce new hierarchies SvnLimited and FirmwareLimited but do not enable
them.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-25 11:17:42 -04:00
Stefan Berger
a5977d2018 rev180: Add hierarchy field to OBJECT and use it
Add new field hierarchy to OBJECT and assign values to it and access it.

Beyond the sync with upstream we need to also set the hierachy when
- an older OBJECT is converted to the current OBJECT
- an OBJECT is unmarshalled

Remove ObjectGetHierarchy since it is not needed anymore.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2024-07-25 11:17:42 -04:00