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SHA512_ALGO was used as a "either SHA512 or SHA384", although the
implementations of these two algorithms share a majority of code.
From a Kconfig interface perspective, it makes sense to present two
distinct options. This requires #ifdefing out the SHA512
implementation from sha512.c. The latter doesn't make any sense.
It's reasonable to say in Kconfig that SHA384 depends on SHA512, and
seems to be the more polite way to handle the selection.
Thus, automatically select SHA512 when SHA384 is enabled.
Signed-off-by: Alexandru Gagniuc <[email protected]>
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TCG EFI Protocol Specification defines that PCRIndex parameter
passed from caller must be 0 to 23.
TPM2_MAX_PCRS is currently used to check the range of PCRIndex,
but TPM2_MAX_PCRS is tpm2 device dependent and may have larger value.
This commit newly adds EFI_TCG2_MAX_PCR_INDEX macro, it is used to
check the range of PCRIndex parameter.
Signed-off-by: Masahisa Kojima <[email protected]>
Acked-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
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TCG EFI Protocol Specification defines the required parameter
checking and return value for each API.
This commit adds the missing parameter check and
fixes the wrong return value to comply the specification.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
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When U-Boot is started we have to use the existing variables to determine
in which secure boot state we are.
* If a platform key PK is present and DeployedMode=1, we are in deployed
mode.
* If no platform key PK is present and AuditMode=1, we are in audit mode.
* Otherwise if a platform key is present, we are in user mode.
* Otherwise if no platform key is present, we are in setup mode.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Writing variables AuditMode and DeployedMode serves to switch between
Secure Boot modes. Provide a separate value for these in efi_auth_var_type.
With this patch the variables will not be read from from file even if they
are marked as non-volatile by mistake.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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The UEFI specification requires that the signature database may only be
stored in tamper-resistant storage. So these variable may not be read
from an unsigned file.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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We should not first allocate memory and then report a rounded up value as
image size. Instead first round up according to section allocation and then
allocate the memory.
Fixes: 82786754b9d2 ("efi_loader: ImageSize must be multiple of SectionAlignment")
Signed-off-by: Heinrich Schuchardt <[email protected]>
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In a section header VirtualSize may be zero. This is for instance seen in
the .sbat section of shim. In this case use SizeOfRawData as section size.
Fixes: 9d30a941cce5 ("efi_loader: don't load beyond VirtualSize")
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Asherah Connor <[email protected]>
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default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <[email protected]>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <[email protected]>
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Memory allocated in the implementation of the
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL must be of type EfiBootServicesData.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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dp_alloc() was using a constant from the wrong enum resulting in creating
device paths in EfiReservedMemory.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Use enum efi_memory_type and enum_allocate_type in the definitions of the
efi_allocate_pages(), efi_allocate_pool().
In the external UEFI API leave the type as int as the UEFI specification
explicitely requires that enums use a 32bit type.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Refactor efi_append_scrtm_version() to use common
function for adding eventlog and extending PCR.
Signed-off-by: Masahisa Kojima <[email protected]>
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TCG PC Client PFP spec requires to measure
"Exit Boot Services Invocation" if ExitBootServices() is invoked.
Depending upon the return code from the ExitBootServices() call,
"Exit Boot Services Returned with Success" or "Exit Boot Services
Returned with Failure" is also measured.
Signed-off-by: Masahisa Kojima <[email protected]>
Swap two ifs in efi_exit_boot_services().
efi_tcg2_notify_exit_boot_services must have EFIAPI signature.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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TCG PC Client PFP spec requires to measure "Boot####"
and "BootOrder" variables, EV_SEPARATOR event prior
to the Ready to Boot invocation.
Since u-boot does not implement Ready to Boot event,
these measurements are performed when efi_start_image() is called.
TCG spec also requires to measure "Calling EFI Application from
Boot Option" for each boot attempt, and "Returning from EFI
Application from Boot Option" if a boot device returns control
back to the Boot Manager.
Signed-off-by: Masahisa Kojima <[email protected]>
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TCG PC Client PFP spec requires to measure the secure
boot policy before validating the UEFI image.
This commit adds the secure boot variable measurement
of "SecureBoot", "PK", "KEK", "db", "dbx", "dbt", and "dbr".
Note that this implementation assumes that secure boot
variables are pre-configured and not be set/updated in runtime.
Signed-off-by: Masahisa Kojima <[email protected]>
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iPXE used Uri() device path nodes. So we should support them in the
device path to text protocol.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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%s/cerificate/certificate/
Signed-off-by: Heinrich Schuchardt <[email protected]>
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In the commit c982874e930d ("efi_loader: refactor
efi_setup_loaded_image()"), setjmp-related definitions were moved to
efi_loaded_image_obj in efi_loader.h. So setjmp.h is no longer
refererenced in efi_api.h.
This also fixes some error when efi_api.h will be included in
mkeficapsule.c.
Fixes: c982874e930d ("efi_loader: refactor efi_setup_loaded_image()")
Signed-off-by: AKASHI Takahiro <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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If capsule authentication is disabled and yet a capsule file is signed,
its signature must be removed from image data to flush.
Otherwise, the firmware will be corrupted after update.
Fixes: 04be98bd6bcf ("efi: capsule: Add support for uefi capsule
authentication")
Signed-off-by: AKASHI Takahiro <[email protected]>
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efi_guid_capsule_root_cert_guid is never used.
Just remove it.
Signed-off-by: AKASHI Takahiro <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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SMBIOS tables only support 32bit addresses. If we don't have memory here
handle the error gracefully:
* on x86_64 fail to start U-Boot
* during UEFI booting ignore the missing table
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The capsule signature is now part of our DTB. This is problematic when a
user is allowed to change/fixup that DTB from U-Boots command line since he
can overwrite the signature as well.
So Instead of adding the key on the DTB, embed it in the u-boot binary it
self as part of it's .rodata. This assumes that the U-Boot binary we load
is authenticated by a previous boot stage loader.
Reviewed-by: Masami Hiramatsu <[email protected]>
Tested-by: Masami Hiramatsu <[email protected]>
Tested-by: Sughosh Ganu <[email protected]>
Signed-off-by: Ilias Apalodimas <[email protected]>
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TCG PC Client PFP spec says "The Log Area Minimum Length
for the TCG event log MUST be at least 64KB." in ACPI chapter.
This commit increase the buffer size to 64KB.
Signed-off-by: Masahisa Kojima <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Use %pD to log device-path instead of using efi_dp_str() and
efi_free_pool() locally in find_boot_device().
This is a cleanup patch, no feature update nor fix.
Suggested-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Previously, the GPT device GUID was being used instead of the partition,
which was incorrect.
Signed-off-by: Alfonso Sánchez-Beato <[email protected]>
Let EFI_LOADER select CONFIG_PARTITION_UUIDS.
Use log_warning() instead of printf() for warning.
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Fix find_boot_device() to set bootdev_root if it finds the
bootdev from BootNext. Currently it sets the bootdev_root only
when it finds bootdev from BootOrder.
Fixes: c74cd8bd08d1 ("efi_loader: capsule: add capsule_on_disk support")
Signed-off-by: Masami Hiramatsu <[email protected]>
Accked-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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If multiple capsules are applied, the FMP drivers for the individual
capsules can expect the value of CapsuleLast to be accurate. Hence
CapsuleLast must be updated after each capsule.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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efi_set_variable() should be called with EFI_CALL(). Use
efi_set_variable_int() instead.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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* Use log category LOGC_EFI. This allows to remove 'EFI:' prefixes in
messages.
* Rephrase some of the messages.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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When reading a directory using EFI_FILE_PROTOCOL.Read() provide file
attributes and timestamps.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Although U-Boot supports capsule update on-disk, it's lack of support for
SetVariable at runtime prevents applications like fwupd from using it.
In order to perform the capsule update on-disk the spec says that the OS
must copy the capsule to the \EFI\UpdateCapsule directory and set a bit in
the OsIndications variable. The firmware then checks for the
EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED bit in OsIndications
variable, which is set by the submitter to trigger processing of the
capsule on the next reboot.
Let's add a config option which ignores the bit and just relies on the
capsule being present. Since U-Boot deletes the capsule while processing
it, we won't end up applying it multiple times.
Note that this is allowed for all capsules. In the future, once
authenticated capsules are fully supported, we can limit the functionality
to those only.
Signed-off-by: apalos <[email protected]>
Reword Kconfig description.
Reviewed-by: Heinrich Schuchardt <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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After each reboot we must clear flag
EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED in variable
OsIndications.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Improve efi_query_variable_info() to check the parameter settings and
return correct error code according to the UEFI Specification 2.9,
and the Self Certification Test (SCT) II Case Specification, June
2017, chapter 4.1.4 QueryVariableInfo().
Reported-by: Kazuhiko Sakamoto <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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After if we should use parentheses to keep the code readable.
Fixes: a95f4c885991 ("efi_loader: NULL dereference in EFI console")
Signed-off-by: Heinrich Schuchardt <[email protected]>
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We only install FMPs if a CapsuleUpdate is requested. Since we now have an
ESRT table which relies on FMPs to build the required information, it
makes more sense to unconditionally install them. This will allow userspace
applications (e.g fwupd) to make use of the ERST and provide us with files
we can use to run CapsuleUpdate on-disk
Signed-off-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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Chapter 23 of the EFI spec (rev 2.9) says:
"A specific updatable hardware firmware store must be represented by
exactly one FMP instance".
This is not the case for us, since both of our FMP protocols can be
installed at the same time because they are controlled by a single
'dfu_alt_info' env variable.
So make the config options depend on each other and allow the user to
install one of them at any given time. If we fix the meta-data provided
by the 'dfu_alt_info' in the future, to hint about the capsule type
(fit or raw) we can revise this and enable both FMPs to be installed, as
long as they target different firmware hardware stores
Note that we are not using a Kconfig 'choice' on purpose, since we
want to allow both of those to be installed and tested in sandbox
Signed-off-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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When running the efidebug capsule disk-update command, the efi_fmp_raw
protocol installation fails with 2 (EFI_INVALID_PARAMETER) as below.
This is because the code passes efi_root instead of the handle local var.
=> efidebug capsule disk-update
EFI: Call: efi_install_multiple_protocol_interfaces( &handle, &efi_guid_firmware_management_protocol, &efi_fmp_fit, NULL)
EFI: Entry efi_install_multiple_protocol_interfaces(00000000fbaf5988)
EFI: Call: efi_install_protocol_interface( handle, protocol, EFI_NATIVE_INTERFACE, protocol_interface)
EFI: Entry efi_install_protocol_interface(00000000fbaf5988, 86c77a67-0b97-4633-a187-49104d0685c7, 0, 00000000fbfa6ee8)
EFI: new handle 00000000fbb37520
EFI: Exit: efi_install_protocol_interface: 0
EFI: 0 returned by efi_install_protocol_interface( handle, protocol, EFI_NATIVE_INTERFACE, protocol_interface)
EFI: Exit: efi_install_multiple_protocol_interfaces: 0
EFI: 0 returned by efi_install_multiple_protocol_interfaces( &handle, &efi_guid_firmware_management_protocol, &efi_fmp_fit, NULL)
EFI: Call: efi_install_multiple_protocol_interfaces( &efi_root, &efi_guid_firmware_management_protocol, &efi_fmp_raw, NULL)
EFI: Entry efi_install_multiple_protocol_interfaces(00000000fbfec648)
EFI: Call: efi_install_protocol_interface( handle, protocol, EFI_NATIVE_INTERFACE, protocol_interface)
EFI: Entry efi_install_protocol_interface(00000000fbfec648, 86c77a67-0b97-4633-a187-49104d0685c7, 0, 00000000fbfa6f18)
EFI: handle 00000000fbaf8520
EFI: Exit: efi_install_protocol_interface: 2
EFI: 2 returned by efi_install_protocol_interface( handle, protocol, EFI_NATIVE_INTERFACE, protocol_interface)
EFI: Exit: efi_install_multiple_protocol_interfaces: 2
EFI: 2 returned by efi_install_multiple_protocol_interfaces( &efi_root, &efi_guid_firmware_management_protocol, &efi_fmp_raw, NULL)
Command failed, result=1
To fix this issue, pass the handle local var which is set NULL right
before installing efi_fmp_raw as same as the installing efi_fmp_fit.
(In both cases, the local reference to the handle will be just discarded)
Signed-off-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Ilias Apalodimas <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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According to chapter 7.1 "Event, Timer, and Task Priority Services"
TPL_HIGH_LEVEL should not be exposed to applications and drivers.
According to the discussion with EDK II contributors this implies that
CreateEvent() shall not allow to create events with TPL_HIGH_LEVEL.
Cc: Samer El-Haj-Mahmoud <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
Acked-by: Samer El-Haj-Mahmoud <[email protected]>
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Brackets '[' need to be escaped to avoid a build warning
lib/efi_loader/efi_image_loader.c:223:
WARNING: Inline strong start-string without end-string.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Masahisa Kojima <[email protected]>
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If opening a file fails, the file handle pointer is not valid and must not
be dereferenced.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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If we want to address partition 15 of virtio block device 11, we have to
write:
virtio b:f
When calling sprintf() we must use %x for the device and partition numbers.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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"TCG PC Client Platform Firmware Profile Specification"
requires to measure every attempt to load and execute
a OS Loader(a UEFI application) into PCR[4].
This commit adds the PE/COFF image measurement, extends PCR,
and appends measurement into Event Log.
Acked-by: Ilias Apalodimas <[email protected]>
Tested-by: Ilias Apalodimas <[email protected]>
Signed-off-by: Masahisa Kojima <[email protected]>
Replace CONFIG_HASH_CALCULATE by CONFIG_HASH
Fix conversions between pointers and u64.
Signed-off-by: Heinrich Schuchardt <[email protected]>
Reviewed-by: Ilias Apalodimas <[email protected]>
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The hash_calculate() symbol is provided by hash-checksum.c. It depends
on hash_progressive_lookup_algo(), provided when CONFIG_HASH=y.
The issue is that hash_calculate() is used by the efi_loader,
irregardless of CONFIG_FIT_SIGNATURE. As pointed out in
commit 87316da05f2f ("lib: introduce HASH_CALCULATE option"),
enabling hash_calculate() based on CONFIG_FIT_SIGNATURE is incorrect.
To resolve this, use CONFIG_HASH as the compile switch for
hash-checksum.c. This ensures that all dependencies are compiled, and
is the most natural Kconfig to use.
There is the issue of having to 'select HASH' in a couple of places
that already 'select SHA256'. This is a deeper problem with how hashes
are organized, and fixing it is beyonf the scope of this change.
Signed-off-by: Alexandru Gagniuc <[email protected]>
Acked-by: Masahisa Kojima <[email protected]>
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When we think of Kconfig, we usually think of features that we like
to enable or not. Ideally, we wouldn't use Kconfig to fix a build
issue, although sometimes it might make sense. With Kconfig it's hard
to guarantee that the fix is universal. We can only say that it works
for the set of tested configurations. In the majority of cases, it's
preferable to let the linker figure things out for us.
The reverted commit attempted to fix a build issue by adding an
invisible Kconfig option. This is wrong in several ways:
It invents a new Kconfig variable when CONFIG_HASH already
exists for the same purpose.
Second, hash-checksum.c makes use of the hash_progressive_lookup_algo()
symbol, which is only provided with CONFIG_HASH, but this dependency
was not expressed in the reverted patch.
It feels like Kconfig is turning into a listing of all available
source files, and a buffet to 'select' which ones to compile. The
purpose of this revert is to enable the next change to make use of
CONFIG_HASH instead of adding to Kconfig.
This reverts commit 87316da05f2fd49d3709275e64ef0c5980366ade.
Signed-off-by: Alexandru Gagniuc <[email protected]>
Acked-by: Masahisa Kojima <[email protected]>
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Coverity reported 3 warnings on the current code.
CID 331856, 331855, 331854 on the latest scan.
Fix the rest of the warnings by initializing the variables before
passing them to tpm2_get_pcr_info().
In order to avoid future warnings and errors initialize them to 0 within
the function as well, since the values are always OR'ed after querying the
hardware.
Signed-off-by: Ilias Apalodimas <[email protected]>
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Compiling with -Wextra produces a number of (harmless) warnings for the EFI
TCG2 protocol. Let's fix those in case we ever enable the flag on the EFI
subsystem
Signed-off-by: Ilias Apalodimas <[email protected]>
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Before this patch efi_dp_from_name() only accommodated a maximum file path
length of 31 characters. This leads to boot failures due to file name
truncation.
Allow arbitrary path lengths.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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This is preparation for PE/COFF measurement support.
PE/COFF image hash calculation is same in both
UEFI Secure Boot image verification and measurement in
measured boot. PE/COFF image parsing functions are
gathered into efi_image_loader.c, and exposed even if
UEFI Secure Boot is not enabled.
This commit also adds the EFI_SIGNATURE_SUPPORT option
to decide if efi_signature.c shall be compiled.
Signed-off-by: Masahisa Kojima <[email protected]>
Signed-off-by: Heinrich Schuchardt <[email protected]>
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Configuring a system with CONFIG_EFI_CAPSULE_AUTHENTICATE=y but without a
method to retrieve the public key data is a misconfiguration. We should get
a build failure for it. Therefore remove the weak efi_get_public_key_data()
implementation.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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