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2019-05-19efi_loader: parameter check OutputStringHeinrich Schuchardt
Check the parameters against NULL. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.SetState() correct parameterHeinrich Schuchardt
KeyToggleState is a pointer according to UEFI spec 2.8. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: GetNextMonotonicCount() check parameterHeinrich Schuchardt
Do not write to address indicated by NULL pointer. UEFI SCT II 2.6 (2017), 3.6.5 GetNextMonotonicCount(), 5.1.5.5.1 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: parameter checks CalculateCrc32()Heinrich Schuchardt
Not checking the parameters may lead reading or writing from NULL. Implement the parameter checks prescribed in the UEFI spec. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: check device path in InstallMultipleProtocolInterfacesHeinrich Schuchardt
According to the UEFI spec InstallMultipleProtocolInterfaces() must check if a device path has already been installed. In this case it must return EFI_ALREADY_STARTED. Cf. UEFI SCT II 2.6 A (2017), 3.3.16 InstallMultipleProtocolInterfaces(), 5.1.3.16.1. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: implement deprecated Unicode collation protocolHeinrich Schuchardt
In EFI 1.10 a version of the Unicode collation protocol using ISO 639-2 language codes existed. This protocol is not part of the UEFI specification any longer. Unfortunately it is required to run the UEFI Self Certification Test (SCT) II, version 2.6, 2017. So we implement it here for the sole purpose of running the SCT. It can be removed once a compliant SCT is available. The configuration option defaults to no. Signed-off-by: Rob Clark <robdclark@gmail.com> Most of Rob's original patch is already merged. Only the deprecated protocol is missing. Rebase it and make it configurable. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: rename Unicode collation protocol 2 variablesHeinrich Schuchardt
Rename variables to make it clear they refer to the Unicode collation protocol identified by the EFI_UNICODE_PROTOCOL2_GUID. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: merge adjacent sprintf()Heinrich Schuchardt
In the implementation of the device path to text protocol join adjacent sprintf() statements. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: parameter checks simple network protocolHeinrich Schuchardt
Check buffer pointers are not NULL as required by the UEFI 2.7 spec. Return EFI_UNSUPPORTED instead of EFI_INVALID_PARAMETER when trying to transmit with non-zero header_size. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-19efi_loader: GetVariable set attributes for EFI_BUFFER_TOO_SMALLHeinrich Schuchardt
UEFI spec 2.7 erratum A leaves it undefined if Attributes should be set if GetVariable() returns EFI_BUFFER_TOO_SMALL. UEFI spec 2.8 defines that Attributes should be set if the return value is either EFI_SUCCESS or EFI_BUFFER_TOO_SMALL. Set Attributes if the return value is EFI_BUFFER_TOO_SMALL. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: ACPI device node to textHeinrich Schuchardt
The device path to text protocol renders ACPI device nodes incorrectly. Use capital hexadecimal numbers as shown in the UEFI spec examples. Always output the optional UID. This matches what UEFI SCT expects and saves us an `if`. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: infinite recursion notifying eventsHeinrich Schuchardt
UEFI SCT uses this call sequence to determine the current TPL level inside notification functions: OldTpl = BS->RaiseTPL(TPL_HIGH_LEVEL); BS->RestoreTPL(OldTpl); In RestoreTPL() we trigger the notification function of queued events. If we do not mark the event as non-queued before calling the notification function, this results in an infinite recursive call sequence. Mark the event as non-queued before entering the notification function. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: simplify efi_allocate_pages()Heinrich Schuchardt
Replace unnecessary control structures by using return statements. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: AllocateAdress error handlingHeinrich Schuchardt
If AllocatePages() is called with AllocateAddress, the UEFI spec requires to return EFI_NOT_FOUND in case the memory page does not exist. The UEFI SCT II 2017 spec additionally requires to return EFI_NOT_FOUND if the page is already allocated. Check that *Memory refers to an unallocated page. UEFI SCT II (2017): AllocatePages(), 5.1.2.1.9 - 5.1.2.1.10 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: out of resources in AllocatePages()Heinrich Schuchardt
According to the UEFI AllocatePages() has to return EFI_OUT_OF_RESOURCES if sufficient memory is not available. Change the return value. UEFI SCT II (2017): 3.2.1 AllocatePages(), 5.1.2.1.8 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: check memory address before freeingHeinrich Schuchardt
When we call FreePages() we essentially add memory to our memory map. We shouldn't do this for memory that does not exit. Check if the memory that is to be freed via FreePages() or FreePool() is in our memory map and is not EFI_CONVENTIONAL_MEMORY. This check is mandated by the UEFI specification. Cf. UEFI SCT II (2017), 3.2.2 FreePages(), 5.1.2.1 - 5.1.2.2 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: error code in UninstallProtocolInterface()Heinrich Schuchardt
According to the UEFI specification UninstallProtocolInteface() has to return EFI_NOT_FOUND if the interface is not found. Correct the return value. Cf. UEFI SCT II spec (2017), 3.3.2 UninstallProtocolInterface(), 5.1.3.2.4 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: superfluous check in efi_remove_protocol()Heinrich Schuchardt
efi_search_protocol() already checks that the GUID matches. Don't check a second time. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: LocateDevicePath() incorrect parameter checkHeinrich Schuchardt
A parameter check in LocateDevicePath() does not match the requirements of the UEFI spec. If device is NULL, only return EFI_INVALID_PARAMETER if a matching handle is found. Cf. UEFI SCT II specification (2017)3.3.7 LocateDevicePath(), 5.1.3.7.3 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: fix typo in efi_locate_handle() commentHeinrich Schuchardt
%s/not buffer/no buffer/ Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: make device path to text protocol customizableHeinrich Schuchardt
The device path to text protocol is not needed for EBBR compliance. So let's make it a customizable option. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: make Unicode collation protocol customizableHeinrich Schuchardt
The Unicode collation protocol is not needed for EBBR compliance. So let's make it a customizable option. The Unicode capitalization table is only needed by this protocol. So let it depend on the Unicode collation protocol. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: reword the EFI_LOADER config optionHeinrich Schuchardt
No need to mention U-Boot in brief description. Fix several typos, mention iPXE. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: format KconfigHeinrich Schuchardt
Use if/endif for dependencies to give structure to the configuration menu. Sort important settings to the top. Abbreviate the short description of EFI_LOADER_HII. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-12efi_loader: observe CONFIG_EFI_LOADER_HIIHeinrich Schuchardt
If EFI_LOADER_HII is not set, do not unnecessarily compile files for HII protocols. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: signature of ExitBootServices()Heinrich Schuchardt
Consistently use efi_uintn_t as type of memory keys. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Alexander Graf <graf@amazon.com>
2019-05-07efi_loader: LoadImage() check source sizeHeinrich Schuchardt
If the size of the source buffer is 0, return EFI_LOAD_ERROR. (UEFI SCT II 2017: 3.4.1 LoadImage() - 5.1.4.1.6) Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: LoadImage() check parent imageHeinrich Schuchardt
If the parent image handle does not refer to a loaded image return EFI_INVALID_PARAMETER. (UEFI SCT II 2017: 3.4.1 LoadImage() - 5.1.4.1.1) Mark our root node as a loaded image to avoid an error when using it as parent image. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: HandleProtocol parameter checksHeinrich Schuchardt
HandleProtocol() and OpenProtocol() have to return EFI_UNSUPPORTED if the protocol is not installed on the handle. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: use EFI_PRINT instead of debugHeinrich Schuchardt
For correct indentation of messages in the UEFI API implementation use EFI_PRINT() instead of debug(). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: CloseProtocol() requires valid agent handleHeinrich Schuchardt
Return EFI_INVALID_PARAMETER from CloseProtcol() if the agent handle is not valid. Return EFI_INVALID_PARAMETER if the optional controller handle is not valid. Return immediately from efi_search_obj if the handle is NULL. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: implement RegisterProtocolNotify()Heinrich Schuchardt
The RegisterProtocolNotify() boot service registers an event to be notified upon the installation of a protocol interface with the specified GUID. Add the missing implementation. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: EVT_NOTIFY_SIGNAL eventsHeinrich Schuchardt
The notification function of events of type EVT_NOTIFY_SIGNAL should always be queued when SignalEvent() is called. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: unload applications upon Exit()Heinrich Schuchardt
Implement unloading of images in the Exit() boot services: * unload images that are not yet started, * unload started applications, * unload drivers returning an error. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: implement UnloadImage()Heinrich Schuchardt
Implement the UnloadImage() boot service Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: move efi_unload_image() down in sourceHeinrich Schuchardt
Move efi_unload_image() down in source to avoid forward declaration in follwing page. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: mark started imagesHeinrich Schuchardt
In UnloadImage() we need to know if an image is already started. Add a field to the handle structure identifying loaded and started images. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: correct parameter check in LocateHandle()Heinrich Schuchardt
If LocateHandle() does not find an entry EFI_NOT_FOUND has to be returned even if BufferSize is NULL. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-07efi_loader: allowable event types in CreateEventEx()Heinrich Schuchardt
CreateEventEx() does not allow the following event types: * EVT_SIGNAL_EXIT_BOOT_SERVICES * EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE This check is needed to pass the UEFI SCT conformance test. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Alexander Graf <agraf@csgraf.de>
2019-05-07efi_loader: clean up UEFI sub-system initializationHeinrich Schuchardt
allow_unaligned(), switch_to_non_secure_mode(), and efi_init_obj_list() are called in sequence in multiple places. Move calls to allow_unaligned() and switch_to_non_secure_mode() to efi_init_obj_list(). Remove unused includes. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02efi_loader: description of efi_add_handle()Heinrich Schuchardt
Correct the comments describing function efi_add_handle(). Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02efi_loader: implement support of exit dataHeinrich Schuchardt
In case of a failure exit data may be passed to Exit() which in turn is returned by StartImage(). Let the `bootefi` command print the exit data string in case of an error. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02efi_loader: optional data in load options are binaryHeinrich Schuchardt
The field boot OptionalData in structure _EFI_LOAD_OPTIONS is for binary data. When we use `efidebug boot add` we should convert the 5th argument from UTF-8 to UTF-16 before putting it into the BootXXXX variable. When printing boot variables with `efidebug boot dump` we should support the OptionalData being arbitrary binary data. So let's dump the data as hexadecimal values. Here is an example session protocol: => efidebug boot add 00a1 label1 scsi 0:1 doit1 'my option' => efidebug boot add 00a2 label2 scsi 0:1 doit2 => efidebug boot dump Boot00A0: attributes: A-- (0x00000001) label: label1 file_path: .../HD(1,MBR,0xeac4e18b,0x800,0x3fffe)/doit1 data: 00000000: 6d 00 79 00 20 00 6f 00 70 00 74 00 69 00 6f 00 m.y. .o.p.t.i.o. 00000010: 6e 00 00 00 n... Boot00A1: attributes: A-- (0x00000001) label: label2 file_path: .../HD(1,MBR,0xeac4e18b,0x800,0x3fffe)/doit2 data: Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02efi_loader: set OsIndicationsSupported at initAKASHI Takahiro
UEFI variables should be installed using well-defined API. Currently we don't support much, but the value of OsIndicationsSupported will be updated once some features are added in the future. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Add comments. Rename a variable. Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02efi_loader: FreePages() must fail with pages = 0Heinrich Schuchardt
The UEFI spec requires that freeing of pages fails if the number of pages to be freed is 'invalid'. Check that it is not zero. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-05-02efi_loader: parameter check CreateEventEx()Heinrich Schuchardt
CreateEvent() and CreateEventEx() should check that a notify function is provided for either of EVT_NOTIFY_SIGNAL or EVT_NOTIFY_WAIT. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-04-23efi_loader: check length in CreateDeviceNode()Heinrich Schuchardt
When creating a device path node ensure that the size of the allocated memory at lest matches the size of the node header. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-04-23efi_loader: check memory type in AllocatePages()Heinrich Schuchardt
The UEFI specification prescribes that AllocatePages() checks the memory type. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-04-23efi_loader: rework bootmgr/bootefi using load_image APIAKASHI Takahiro
In the current implementation, bootefi command and EFI boot manager don't use load_image API, instead, use more primitive and internal functions. This will introduce duplicated code and potentially unknown bugs as well as inconsistent behaviours. With this patch, do_efibootmgr() and do_boot_efi() are completely overhauled and re-implemented using load_image API. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Use efi_root as parent handle for the loaded image. LoadImage() should be called with BootPolicy = true by the boot manager. Avoid duplicate free_pool(). Eliminate variable memdp which is not needed after anymore due to "efi_loader: correctly split device path of loaded image". Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-04-23efi_loader: correctly split device path of loaded imageHeinrich Schuchardt
When the LoadImage() service is called for an image that is already loaded to memory the file path may be NULL or it will contain both a device path as well as a media path. We should not assume that there is no media path. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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