Commit graph

2871 commits

Author SHA1 Message Date
AKASHI Takahiro
d97e98c887 efi_loader: disk: use udevice instead of blk_desc
In most of all cases, we can avoid using blk_desc which is expected
to be private to udevice(UCLASS_BLK), that is, the data should not
be manipulated outside the device driver unless really needed.

Now efi_disk's internally use dev_read/write() interfaces
if CONFIG_PARTITIONS is enabled.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-23 22:05:41 +02:00
AKASHI Takahiro
a3cb34e9b7 efi_loader: disk: not delete BLK device for BLK(IF_TYPE_EFI_LOADER) devices
When we create an efi_disk device with an UEFI application using driver
binding protocol, the 'efi_driver' framework tries to create
a corresponding block device(UCLASS_BLK/IF_TYPE_EFI). This will lead to
calling a PROBE callback, efi_disk_probe().
In this case, however, we don't need to create another "efi_disk" device
as we already have this device instance.

So we should avoid recursively invoke further processing in the callback
function.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-23 22:05:41 +02:00
AKASHI Takahiro
b406eb04c3 efi_loader: disk: a helper function to delete efi_disk objects
This function is expected to be called, in particular from dm's pre_remove
hook, when associated block devices no longer exist.

Add efi_disk_remove() function.
This function removes an efi_disk object for a raw disk device (UCLASS_BLK)
and related objects for its partitions (UCLASS_PARTITION).

So this function is expected to be called through driver model's "remove"
interface every time a raw disk device is to be disconnected.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-23 22:05:41 +02:00
AKASHI Takahiro
3c809dfed7 efi_loader: disk: not create BLK device for BLK(IF_TYPE_EFI_LOADER) devices
When we create an efi_disk device with an UEFI application using driver
binding protocol, the 'efi_driver' framework tries to create
a corresponding block device(UCLASS_BLK/IF_TYPE_EFI). This will lead to
calling a PROBE callback, efi_disk_probe().
In this case, however, we don't need to create another "efi_disk" device
as we already have this device instance.

So we should avoid recursively invoke further processing in the callback
function.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-23 22:05:41 +02:00
AKASHI Takahiro
a9bf024b29 efi_loader: disk: a helper function to create efi_disk objects from udevice
Add efi_disk_probe() function.
This function creates an efi_disk object for a raw disk device (UCLASS_BLK)
and additional objects for related partitions (UCLASS_PARTITION).

So this function is expected to be called through driver model's "probe"
interface every time one raw disk device is detected and activated.
We assume that partition devices (UCLASS_PARTITION) have been created
when this function is invoked.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2022-04-23 22:05:41 +02:00
AKASHI Takahiro
a57ad20d07 efi_loader: split efi_init_obj_list() into two stages
In the next commit, CONFIG_EFI_SETUP_EARLY will become mandated
in order to support dynamic enumeration of efi_disk objects.

This can, however, be problematic particularly in case of file-based
variable storage (efi_variable.c, default).
Non-volatile variables are to be restored from EFI system partition
by efi_init_variables() in efi_init_obj_list(). When efi_init_obj_list()
is called in board_init_r(), we don't know yet what disk devices
we have since none of device probing commands (say, scsi rescan) has not
been executed at that stage.

So in this commit, a preparatory change is made; efi_init_obj_list() is
broken into the two functions;
   * efi_init_early(), and
   * new efi_init_obj_list()

Only efi_init_early() will be called in board_init_r(), which allows
us to execute any of device probing commands, either though "preboot"
variable or normal command line, before calling efi_init_obj_list() which
is to be invoked at the first execution of an efi-related command
(or at efi_launch_capsules()) as used to be.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2022-04-23 22:05:41 +02:00
AKASHI Takahiro
38f255b960 efi_loader: disk: compile efi_disk when CONFIG_BLK
Now we can build efi_loader with block device support (CONFIG_BLK) and
without CONFIG_PARTITIONS.
So change Makefile.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
2022-04-23 22:05:34 +02:00
AKASHI Takahiro
7a06fd7579 efi_loader: PARTITION_UUIDS should be optional
In the current implementation, partition table support (either GPT or DOS)
is not mandatory. So CONFIG_PARTITION_UUIDS should not be enabled
(selected) unconditionally.

Fixes: commit 17f8cda505 ("efi_loader: set partition GUID in device path for SIG_TYPE_GUID")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-23 22:05:34 +02:00
Andrew Abbott
0de71bb580 fdt: Fix TPL SEPARATE_BSS check when locating DTB
Commit 690af71850 changed this condition
from an explicit

IS_ENABLED(CONFIG_SPL_SEPARATE_BSS)

to

CONFIG_IS_ENABLED(SEPARATE_BSS)

The documentation for CONFIG_IS_ENABLED() in include/linux/kconfig.h
implies that we will get the correct behaviour, but the actual behaviour
differs such that this condition is now always false.

This stopped TPL being able to load the device tree blob at least on the
ROCKPro64 board (RK3399 SoC), since the wrong device tree location was
chosen.

The issues causing this behaviour with CONFIG_IS_ENABLED() are:

1. The documentation implies that CONFIG_SPL_BUILD =>
   CONFIG_SPL_<option> is considered before the TPL equivalent.

   Actually, the TPL options have higher priority - see definition of
   _CONFIG_PREFIX.

2. The documentation implies a fallthrough, eg. if CONFIG_SPL_BUILD is
   defined but the CONFIG_SPL_<option> is not, then it will proceed to
   check if CONFIG_TPL_BUILD

   Actually, if CONFIG_TPL_BUILD is defined, then it stops there
   and CONFIG_SPL_BUILD is not considered - see definition of
   _CONFIG_PREFIX.

   During TPL build, at least for the ROCKPro64, both CONFIG_TPL_BUILD
   and CONFIG_SPL_BUILD are defined, but because of the above, only TPL
   options are considered. Since there is no CONFIG_TPL_SEPARATE_BSS,
   this fails.

Fixes: 690af71850 ("fdt: Correct condition for SEPARATE_BSS")
Signed-off-by: Andrew Abbott <andrew@mirx.dev>
2022-04-22 15:44:10 -04:00
Pali Rohár
1a47e6d47c crc16: Move standard CRC-16 implementation from ubifs to lib
This implementation provides standard CRC-16 algorithm with polynomial
x^16 + x^15 + x^2 + 1.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-04-21 14:32:40 -04:00
Pali Rohár
bb3d71b7ef crc16-ccitt: Rename file with CRC-16-CCITT implementation to crc16-ccitt.c
U-Boot CRC-16 implementation uses polynomial x^16 + x^12 + x^5 + 1 which is
not standard CRC-16 algorithm, but it is known as CRC-16-CCITT. Rename file
crc16.c to crc16-ccitt.c to reduce confusion.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-04-21 14:32:40 -04:00
Heinrich Schuchardt
8bf5f9af3b efi_loader: simplify efi_serialize_load_option()
Use u16_strsize().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-15 11:26:21 +02:00
Heinrich Schuchardt
b27d8e4037 efi_loader: EFI_HII_STRING_PROTOCOL.GetString()
Use u16_strsize().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-15 11:26:21 +02:00
Heinrich Schuchardt
967407defe lib: simplify u16_strdup()
Use u16_strsize() instead of duplicating it.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-15 11:26:20 +02:00
Heinrich Schuchardt
0121282d1a lib: convert u16_strlen() into a macro
The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-15 11:26:20 +02:00
Sughosh Ganu
9736287173 FMP: Remove GUIDs for FIT and raw images
The capsule update code has been modified for getting the image GUID
values from the platform code. With this, each image now has a unique
GUID value. With this change, there is no longer a need for defining
GUIDs for FIT and raw images. Remove these GUID values.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
2022-04-15 10:43:18 +02:00
Sughosh Ganu
a9e6f01a94 efi: Define set_dfu_alt_info() for boards with UEFI capsule update enabled
Currently, there are a bunch of boards which enable the UEFI capsule
update feature. The actual update of the firmware images is done
through the dfu framework which uses the dfu_alt_info environment
variable for getting information on the update, like device, partition
number/address etc. The dfu framework allows the variable to be set
through the set_dfu_alt_info function defined by the platform, or if
the function is not defined, it gets the variable from the
environment. Using the value set in the environment is not very
robust, since the variable can be modified from the u-boot command
line and this can cause an incorrect update.

To prevent this from happening, define the set_dfu_alt_info function
when the capsule update feature is enabled. A weak function is defined
which sets the dfu_alt_info environment variable by getting the string
for the variable from the platform.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-04-15 10:43:18 +02:00
Sughosh Ganu
7cf06f09cc capsule: Put a check for image index before the update
The current capsule update code compares the image GUID value in the
capsule header with the image GUID value obtained from the
GetImageInfo function of the Firmware Management Protocol(FMP). This
comparison is done to ascertain if the FMP's SetImage function can be
called for the update. Make this checking more robust by comparing the
image_index value passed through the capsule with that returned by the
FMP's GetImageInfo function. This protects against the scenario of the
firmware being updated in a wrong partition/location on the storage
device if an incorrect value has been passed through the capsule,
since the image_index is used to determine the location of the update
on the storage device.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-04-15 10:43:18 +02:00
Sughosh Ganu
1ea06bc929 capsule: FMP: Populate the image descriptor array from platform data
Currently, the image descriptor array that has been passed to the
GetImageInfo function of the Firmware Management Protocol(FMP) gets
populated through the data stored with the dfu framework. The
dfu data is not restricted to contain information only of the images
updatable through the capsule update mechanism, but it also contains
information on other images. The image descriptor array is also parsed
by the ESRT generation code, and thus the ESRT table contains entries
for other images that are not being handled by the FMP for the capsule
updates. Fix this by populating the image descriptor array from the
structure initialised in the board file.

The other issue fixed is assignment of a separate GUID for all images
in the image descriptor array. The UEFI specification mandates that
all entries in the ESRT table should have a unique GUID value as part
of the FwClass member of the EFI_SYSTEM_RESOURCE_ENTRY. Currently, all
images are assigned a single GUID value, either an FIT GUID or a raw
image GUID. This is fixed by obtaining the GUID values from the
efi_fw_images array defined per platform.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-04-15 10:43:18 +02:00
Dhananjay Phadke
e146a2c12f lib/crypto: support sha384/sha512 in x509/pkcs7
Set digest_size SHA384 and SHA512 algorithms in pkcs7 and x509,
(not set by ported linux code, but needed by __UBOOT__ part).

EFI_CAPSULE_AUTHENTICATE doesn't select these algos but required for
correctness if certificates contain sha384WithRSAEncryption or
sha512WithRSAEncryption OIDs.

Signed-off-by: Dhananjay Phadke <dphadke@linux.microsoft.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-04-11 11:39:19 -04:00
SESA644425
81eff51047 lib: rsa: Update function padding_pss_verify (any-salt)
Modify function to support any salt length instead of max
length only. Function now detects salt length by parsing
the content of db buffer. Note that it works with (but is
not limited to) zero-length, digest-length and max-length

Signed-off-by: SESA644425 <gioja.hermann@non.se.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-11 11:39:19 -04:00
SESA644425
fb7330545e lib: rsa: Leverage existing data buffer instead of systematic copy
Prior to introduction of modifications in rsassa_pss functions
related to padding verification, doing a pass to reduce memory
consumption of function by replacing memory copies of parts of
const buffer by pointers to the original buffer (masked_db and
h are subparts of msg buffer which is declared const, salt is a
subpart of db which is a working buffer, unmodified after being
filled). New pointers scope is limited to the function where
they are declared (not returned to caller by any mean), zeroing
risk of memory fault related to the change.

Signed-off-by: SESA644425 <gioja.hermann@non.se.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-11 11:39:19 -04:00
SESA644425
c755aa8a1d lib: rsa: Fix const-correctness of rsassa_pss functions
Prior to introduction of modifications in rsassa_pss functions
related to padding verification, doing a pass to update
const-correctness in targeted functions to comply with
coding-rules and avoid const-cast

Signed-off-by: SESA644425 <gioja.hermann@non.se.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-11 11:39:19 -04:00
Masami Hiramatsu
7660cfee0f efi_loader: Use sysreset instead of reset command
Use sysreset_walk_halt() directly from reset-after-capsule-on-disk
feature to reboot (cold reset) machine instead of using reset command
interface, since this is not a command.
Note that this will make CONFIG_EFI_CAPSULE_ON_DISK depending on
the CONFIG_SYSRESET.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-04-09 21:06:31 +02:00
Masami Hiramatsu
39bdf11580 efi_loader: Make efi_load_capsule_drivers() available even if EFI_CAPSULE_ON_DISK=n
Make efi_load_capsule_drivers() available even if EFI_CAPSULE_ON_DISK
is disabled because the caller (efi_init_obj_list()) expects it only
relays on EFI_HAVE_CAPSULE_SUPPORT.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
2022-04-09 21:06:31 +02:00
Tom Saeger
f2288a26ab efi_loader: optional persistence of variables
Since be66b89da3 ("efi_loader: configuration of variables store")
the choice of EFI_VARIABLE_FILE_STORE or EFI_MM_COMM_TEE
is mutually-exclusive, however efi_var_to_file also allows
for "neither". Provide an additional Kconfig option.

Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-04-09 21:06:31 +02:00
Simon Glass
b7463f198d Make ASYMMETRIC_KEY_TYPE depend on FIT_SIGNATURE
Add this dependency to avoid a build error if FIT_SIGNATURE is not
enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:03:17 -04:00
Simon Glass
ccfc9d7841 lzma: Tidy up the function prototype
This should use a const pointer for the input stream. Fix this and also
add a proper comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Simon Glass
423cf0acda fdt: sandbox: Avoid looking for an appended device tree
We don't use an appended tree for sandbox and the required symbols are
not present. Add a condition to avoid a build error.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Simon Glass
690af71850 fdt: Correct condition for SEPARATE_BSS
This may have different settings for SPL and TPL. Correct the condition.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Simon Glass
99aca9efe1 abuf: Correct a corner case with abuf_realloc()
If the buffer is empty and not allocated, then abuf_realloc() tries to
copy invalid data. This happens because an incorrect change to use
memdup() was added after the original code was written.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-04-06 14:01:42 -04:00
Tom Rini
01f1ab67f3 Merge branch 'next'
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-04-04 10:48:44 -04:00
Philippe Reynes
f6bacf1d48 lib: rsa: allow rsa verify with pkey in SPL
This commit adds the option SPL_RSA_VERIFY_WITH_PKEY.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2022-03-31 14:12:01 -04:00
Philippe Reynes
e44ec9f709 lib: crypto: allow to build crypyo in SPL
This commit adds the options:
- SPL_ASYMMETRIC_KEY_TYPE
- SPL_ASYMMETRIC_PUBLIC_KEY_SUBTYPE
- SPL_RSA_PUBLIC_KEY_PARSER

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2022-03-31 14:12:01 -04:00
Philippe Reynes
fd210fee1d lib: allow to build asn1 decoder and oid registry in SPL
This commit adds the options:
- SPL_ASN1_DECODER
- SPL_OID_REGISTRY

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2022-03-31 14:12:01 -04:00
Philippe Reynes
7d44a98517 lib: Kconfig: enhance the help of OID_REGISTRY
Enhance the help for the config OID_REGISTRY.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2022-03-31 14:12:01 -04:00
Philippe Reynes
a0e71d9614 lib: Kconfig: enhance help for ASN1
Enhance the help for configs ASN1_COMPILER
and ASN1_decoder.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
2022-03-31 14:12:01 -04:00
Andy Shevchenko
b6370aca37 efi_loader: initrddump: Actually use the custom CFLAGS
It seems a copy'n'paste typo when tool had been introduced.
It has never had the 'exit' suffix in the file name. Hence,
the custom CFLAGS never been applied and, for example, BFD
linker complains:

  LD      lib/efi_loader/initrddump_efi.so
  ld.bfd: lib/efi_loader/initrddump.o: warning: relocation in read-only section `.text.efi_main'
  ld.bfd: warning: creating DT_TEXTREL in a shared object

Remove wrong 'exit' suffix from the custom CFLAGS variable.

Fixes: 65ab48d69d ("efi_selftest: provide initrddump test tool")
Fixes: 9c045a49a9 ("efi_loader: move dtbdump.c, initrddump.c to lib/efi_loader")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-31 19:06:17 +02:00
Simon Glass
1fa43cad86 video: Drop references to CONFIG_VIDEO et al
Drop the Kconfigs which are not used and all references to them. In
particular, this drops CONFIG_VIDEO to avoid confusion and allow us to
eventually rename CONFIG_DM_VIDEO to CONFIG_VIDEO.

Also drop the prototype for video_get_info_str() which is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
2022-03-28 20:17:07 +02:00
Tom Rini
34d2b7f203 Prepare v2022.04-rc5
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Merge tag 'v2022.04-rc5' into next

Prepare v2022.04-rc5
2022-03-28 12:36:49 -04:00
Heinrich Schuchardt
24cf707ed7 efi_loader: initrddump: drain input before prompt
Up to now the initrddump.efi application has drained the input after
showing the prompt. This works for humans but leads to problems when
automating testing. If the input is drained, this should be done before
showing the prompt.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-03-26 07:46:21 +01:00
Heinrich Schuchardt
ae794fae09 efi_loader: nocolor command line attr for initrddump.efi
initrddump.efi uses colored output and clear the screen. This is not
helpful for integration into Python tests. Allow specifying 'nocolor' in
the load option data to suppress color output and clearing the screen.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-26 07:46:21 +01:00
Heinrich Schuchardt
df96deeed6 efi_loader: typo devie-path
%s/devie-path/device-path/

Reported-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-26 07:46:21 +01:00
Heinrich Schuchardt
9c045a49a9 efi_loader: move dtbdump.c, initrddump.c to lib/efi_loader
The tools dtbdump.efi and initrddump.efi are useful for Python testing even
if CONFIG_EFI_SELFTEST=n.

Don't clear the screen as it is incompatible with Python testing.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 17:01:00 +01:00
Heinrich Schuchardt
b78631d54f efi_loader: remove efi_disk_is_system_part()
The block IO protocol may be installed on any handle. We should make
no assumption about the structure the handle points to.

efi_disk_is_system_part() makes an illegal widening cast from a handle
to a struct efi_disk_obj. Remove the function.

Fixes: Fixes: 41fd506842 ("efi_loader: disk: add efi_disk_is_system_part()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 11:03:06 +01:00
Heinrich Schuchardt
9cdf470274 efi_loader: support booting via short-form device-path
The boot manager must support loading from boot options using a short-form
device-path, e.g. one where the first element is a hard drive media path.

See '3.1.2 Load Options Processing' in UEFI specification version 2.9.

Fixes: 0e074d1239 ("efi_loader: carve out efi_load_image_from_file()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 11:03:06 +01:00
Heinrich Schuchardt
e46ef1db9e efi_loader: efi_dp_find_obj() add protocol check
Let function efi_dp_find_obj() additionally check if a given protocol is
installed on the handle relating to the device-path.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 11:03:06 +01:00
Heinrich Schuchardt
c409593d08 efi_loader: fix efi_dp_find_obj()
efi_dp_find_obj() should not return any handle with a partially matching
device path but the handle with the maximum matching device path.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 11:03:06 +01:00
Heinrich Schuchardt
8399488672 efi_loader: export efi_dp_shorten()
Rename function shorten_path() to efi_dp_shorten() and export it.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 11:03:06 +01:00
Ilias Apalodimas
ff6af6eede efi_loader: Set variable attributes when EFI_BUFFER_TOO_SMALL is returned
Starting UEFI Spec 2.8 we must fill in the variable attributes when
GetVariable() returns EFI_BUFFER_TOO_SMALL and Attributes is non-NULL.

This code was written with 2.7 in mind so let's move the code around a
bit and fill in the attributes EFI_BUFFER_TOO_SMALL is returned

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-20 11:03:06 +01:00
Huang Jianan
26c7fdadcb lib/lz4: update LZ4 decompressor module
Update the LZ4 compression module based on LZ4 v1.8.3 in order to
use the newest LZ4_decompress_safe_partial() which can now decode
exactly the nb of bytes requested.

Signed-off-by: Huang Jianan <jnhuang95@gmail.com>
2022-03-15 16:19:29 -04:00
Heinrich Schuchardt
66028930da efi_loader: copy GUID in InstallProtocolInterface()
InstallProtocolInterface() is called with a pointer to the protocol GUID.
There is not guarantee that the memory used by the caller for the protocol
GUID stays allocated. To play it safe the GUID should be copied to U-Boot's
internal structures.

Reported-by: Joerie de Gram <j.de.gram@gmail.com>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-03-12 12:27:07 +01:00
Yann Droneaud
9b5ad4f5da lib: rsa: use actual OpenSSL 1.1.0 EVP MD API
Since OpenSSL 1.1.0, EVP_MD_CTX_create() is EVP_MD_CTX_new()
                     EVP_MD_CTX_destroy() is EVP_MD_CTX_free()
                     EVP_MD_CTX_init() is EVP_MD_CTX_reset()

As there's no need to reset a newly created EVP_MD_CTX, moreover
EVP_DigestSignInit() does the reset, thus call to EVP_MD_CTX_init()
can be dropped.
As there's no need to reset an EVP_MD_CTX before it's destroyed,
as it will be reset by EVP_MD_CTX_free(), call to EVP_MD_CTX_reset()
is not needed and can be dropped.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
2022-03-04 15:20:07 -05:00
Masahisa Kojima
3fa9ed9ae3 efi_loader: update the timing of enabling and disabling EFI watchdog
UEFI specification requires that 5 minutes watchdog timer is
armed before the firmware's boot manager invokes an EFI boot option.
This watchdog timer is updated as follows, according to the
UEFI specification.

 1) The EFI Image may reset or disable the watchdog timer as needed.
 2) If control is returned to the firmware's boot manager,
    the watchdog timer must be disabled.
 3) On successful completion of EFI_BOOT_SERVICES.ExitBootServices()
    the watchdog timer is disabled.

1) is up to the EFI image, and 3) is already implemented in U-Boot.
This patch implements 2), the watchdog is disabled when control is
returned to U-Boot.

In addition, current implementation arms the EFI watchdog at only
the first "bootefi" invocation. The EFI watchdog must be armed
in every EFI boot option invocation.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-26 07:37:01 +01:00
Masami Hiramatsu
3e6f810006 efi_loader: test/py: Reset system after capsule update on disk
Add a cold reset soon after processing capsule update on disk.
This is required in UEFI specification 2.9 Section 8.5.5
"Delivery of Capsules via file on Mass Storage device" as;

    In all cases that a capsule is identified for processing the system is
    restarted after capsule processing is completed.

This also reports the result of each capsule update so that the user can
notice that the capsule update has been succeeded or not from console log.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-26 07:37:01 +01:00
Masami Hiramatsu
a6aafce494 efi_loader: use efi_update_capsule_firmware() for capsule on disk
Since the efi_update_capsule() represents the UpdateCapsule() runtime
service, it has to handle the capsule flags and update ESRT. However
the capsule-on-disk doesn't need to care about such things.

Thus, the capsule-on-disk should use the efi_capsule_update_firmware()
directly instead of calling efi_update_capsule().

This means the roles of the efi_update_capsule() and capsule-on-disk
are different. We have to keep the efi_update_capsule() for providing
runtime service API at boot time.

Suggested-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-02-26 07:37:00 +01:00
Ilias Apalodimas
bdcc0a9594 efi_loader: fix uefi secure boot with intermediate certs
The general rule of accepting or rejecting an image is
 1. Is the sha256 of the image in dbx
 2. Is the image signed with a certificate that's found in db and
    not in dbx
 3. The image carries a cert which is signed by a cert in db (and
    not in dbx) and the image can be verified against the former
 4. Is the sha256 of the image in db

For example SHIM is signed by "CN=Microsoft Windows UEFI Driver Publisher",
which is issued by "CN=Microsoft Corporation UEFI CA 2011", which in it's
turn is issued by "CN=Microsoft Corporation Third Party Marketplace Root".
The latter is a self-signed CA certificate and with our current implementation
allows shim to execute if we insert it in db.

However it's the CA cert in the middle of the chain which usually ends up
in the system's db.  pkcs7_verify_one() might or might not return the root
certificate for a given chain.  But when verifying executables in UEFI,  the
trust anchor can be in the middle of the chain, as long as that certificate
is present in db.  Currently we only allow this check on self-signed
certificates,  so let's remove that check and allow all certs to try a
match an entry in db.

Open questions:
- Does this break any aspect of variable authentication since
  efi_signature_verify() is used on those as well?

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-26 07:37:00 +01:00
Ilias Apalodimas
54cebe8a3a efi_loader: fix dual signed image certification
The EFI spec allows for images to carry multiple signatures. Currently
we don't adhere to the verification process for such images.

The spec says:
"Multiple signatures are allowed to exist in the binary's certificate
table (as per PE/COFF Section "Attribute Certificate Table"). Only one
hash or signature is required to be present in db in order to pass
validation, so long as neither the SHA-256 hash of the binary nor any
present signature is reflected in dbx."

With our current implementation signing the image with two certificates
and inserting both of them in db and one of them dbx doesn't always reject
the image.  The rejection depends on the order that the image was signed
and the order the certificates are read (and checked) in db.

While at it move the sha256 hash verification outside the signature
checking loop, since it only needs to run once per image and get simplify
the logic for authenticating an unsigned imahe using sha256 hashes.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2022-02-11 20:07:55 +01:00
Moritz Fischer
058fb9f5ff acpi: Move MCFG implementation to common lib
MCFG tables are used on multiple arches. Move to common ACPI lib.

Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Moritz Fischer <moritzf@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Use sizeof(*mcfg) instead of sizeof(*header)
Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-09 12:30:13 -07:00
Simon Glass
e2bceb0331 efi: Drop unnecessary calls to blk_find_device()
When we have the block descriptor we can simply access the device. Drop
the unnecessary function call.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-02-05 20:20:01 +01:00
Simon Glass
377d39d178 efi: Use device_get_uclass_id() where appropriate
Use this function rather than following the pointers, since it is there
for this purpose.

Add the uclass name to the debug call at the end of dp_fill() since it is
quite useful.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
3c95b323c7 efi_loader: add handle for UART
When loading an EFI binary via the UART we assign a UART device path to it.
But we lack a handle with that device path.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
915623c0d3 efi_loader: fix text output for Uart() DP nodes
The UEFI specification concerning Uart() device path nodes has been
clarified:

Parity and stop bits can either both use keywords or both use
numbers but numbers and keywords should not be mixed.

Let's go for keywords as this is what EDK II does. For illegal
values fall back to numbers.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
b1193fa957 efi_loader: use %zu to print efi_uintn_t in FMP driver
For printing an unsigned value we should use %u and not %d.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
e9df54968f efi_loader: use %zu not %zd to print efi_uintn_t
efi_uintnt_t is an unsigned type. We should avoid showing negative numbers.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
344f26a766 efi_loader: fix device path to text protocol
The printing of a file path node must properly handle:

* odd length of the device path node
* UTF-16 character only partially contained in device path node
* buffer overflow due to very long file path

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
fe14f88050 lib: fix snprintf() for UTF-16 strings
snprintf() must return the required buffer length.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Heinrich Schuchardt
b9b4cecf9b efi_selftest: merge FDT and RISC-V tests
The test for the RISCV_EFI_BOOT_PROTOCOL retrieves the boot hart id via the
protocol and compares it to the value of the boot hart id in the device
tree. The boot hart id is already retrieved from the device tree in the FDT
test.

Merge the two tests to avoid code duplication.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-02-05 20:20:01 +01:00
Sunil V L
8efefcec00 efi_selftest: unit test for RISCV_EFI_BOOT_PROTOCOL
Add a test for the RISCV_EFI_BOOT_PROTOCOL.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
2022-02-05 20:20:01 +01:00
Simon Glass
5b9a5b2b96 treewide: Use 16-bit Unicode strings
At present we use wide characters for Unicode but this is not necessary.
Change the code to use the 'u' literal instead. This helps to fix build
warnings for sandbox on the Raspberry Pi.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-02-03 15:53:28 -05:00
Simon Glass
156ccbc3c4 efi: Use 16-bit unicode strings
At present we use wide characters for unicode but this is not necessary.
Change the code to use the 'u' literal instead. This helps to fix build
warnings for sandbox on rpi.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2022-02-03 12:16:01 -05:00
Tom Rini
c7d042f315 Pull request for efi-2022-04-rc1-3
Documentation:
 
 * update Nokia RX-51 documentation and move it to rst
 * describe boot switch settings for HiFive Unmatched board
 
 UEFI:
 
 * fix the checking of images hashes and signatures
 * provide the RISCV_EFI_BOOT_PROTOCOL
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Merge tag 'efi-2022-04-rc1-3' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2022-04-rc1-3

Documentation:

* update Nokia RX-51 documentation and move it to rst
* describe boot switch settings for HiFive Unmatched board

UEFI:

* fix the checking of images hashes and signatures
* provide the RISCV_EFI_BOOT_PROTOCOL
2022-01-29 13:50:19 -05:00
Ilias Apalodimas
5ee900c14f efi_loader: hash the image once before checking against db/dbx
We don't have to recalculate the image hash every time we check against a
new db/dbx entry.  So let's add a flag forcing it to run once since we only
support sha256 hashes

Suggested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-29 10:23:40 +01:00
Ilias Apalodimas
4b63431323 efi_loader: correctly handle mixed hashes and signatures in db
A mix of signatures and hashes in db doesn't always work as intended.
Currently if the digest algorithm is not explicitly set to sha256 we
stop walking the security database and reject the image.

That's problematic in case we find and try to check a signature before
inspecting the sha256 hash.  If the image is unsigned we will reject it
even if the digest matches.

Since we no longer reject the image on unknown algorithms add an explicit
check and reject the image if any other hash algorithm apart from sha256
is detected on dbx.

Suggested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-29 10:23:40 +01:00
Heinrich Schuchardt
8d4c426532 lib: allow printing RISC-V EFI Boot Protocol GUID
On RISC-V a new UEFI protocol has been introduced. Support printing
its GUID using %pUs.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-29 10:23:40 +01:00
Sunil V L
1ccf87165e efi_loader: Enable RISCV_EFI_BOOT_PROTOCOL support
This adds support for new RISCV_EFI_BOOT_PROTOCOL to
communicate the boot hart ID to bootloader/kernel on RISC-V
UEFI platforms.

The specification of the protocol is hosted at:
https://github.com/riscv-non-isa/riscv-uefi

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-29 10:23:40 +01:00
Heinrich Schuchardt
3dd719d4fb efi_loader: correct function comment style
Replace @return and @param.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-29 10:23:40 +01:00
Jamin Lin
2a4b0d5890 rsa: adds rsa3072 algorithm
Add to support rsa 3072 bits algorithm in tools
for image sign at host side and adds rsa 3072 bits
verification in the image binary.

Add test case in vboot for sha384 with rsa3072 algorithm testing.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-01-28 17:58:41 -05:00
Tom Rini
761a1786e1 acpi refactoring to allow non-x86 use
binman support for bintools (binary tools)
 minor tools improvements in preparation for FDT signing
 various minor fixes and improvements
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Merge tag 'dm-pull-26jan22' of https://source.denx.de/u-boot/custodians/u-boot-dm

acpi refactoring to allow non-x86 use
binman support for bintools (binary tools)
minor tools improvements in preparation for FDT signing
various minor fixes and improvements
2022-01-27 14:14:47 -05:00
Loic Poulain
334a9b9d6a lib/circbuf: Make circbuf selectable symbol
It is currenly only used from usbtty driver but make it properly
selectable via Kconfig symbol, for future usage.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
2022-01-26 23:23:17 +01:00
Simon Glass
c033dc8c0c image: Return destination node for add_verify_data() method
It is useful to know where the verification data was written. Update the
API to return this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-26 08:50:44 -07:00
Simon Glass
c3675583e9 rsa: Add debugging for failure cases
Add some more debugging to make it easier to see what is being tried and
what fails. Fix a few comment styles while here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-26 08:50:37 -07:00
Simon Glass
2d7c738296 acpi: Collect tables in the acpi_item list
At present this list is used to collect items within the DSDT and SSDT
tables. It is useful for it to collect the whole tables as well, so there
is a list of what was created and which write created each one.

Refactor the code accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
9d2adca8c3 x86: Move acpi_get_rsdp_addr() ACPI tables to the writer
Move this over to use a writer file, moving the code from the x86
implementation.

There is no need to store a separate variable since we can simply access
the ACPI context.

With this, the original monolithic x86 function for writing ACPI tables
is gone.

Note that QEMU has its own implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
a7e53b93b1 x86: Move device-specific ACPI tables to a writer function
Move this over to use a writer function, moving the code from the x86
implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
78031ad431 x86: acpi: Update acpi_fill_csrt() to use acpi_ctx
Update this function to the newer style, so we can avoid passing and
returning an address through this function.

Also move this function out of the x86 code so it can be used by other
archs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2022-01-25 11:44:36 -07:00
Simon Glass
85b8161b14 x86: Move CSRT table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
d953137526 x86: Move SSDT table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
eacb6d0ba2 x86: Move DSDT table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.

Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.

Disable this table for sandbox since we don't actually compile real ASL
code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
a53d38f80a x86: Move FACS table to a writer function
Move this table over to use a writer function, moving the code from the
x86 implementation.

Add a pointer to the DSDT in struct acpi_ctx so we can reference it later.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
94ba15a3f1 x86: Move base tables to a writer function
Use the new ACPI writer to write the base tables at the start of the area,
moving this code from the x86 implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
31c27eb830 x86: Use the ACPI table writer
Use the new ACPI writer to write the ACPI tables. At present this is all
done in one monolithic function. Future work will split this out.

Unfortunately the QFW write_acpi_tables() function conflicts with the
'writer' version, so disable that for sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
cc1f8c3988 x86: acpi: Split out context creation from base tables
At present acpi_setup_base_tables() both sets up the ACPI context and
writes out the base tables.

We want to use an ACPI writer to write the base tables, so split this
function into two, with acpi_setup_ctx() doing the context set, and
acpi_setup_base_tables() just doing the base tables.

Disable the writer's write_acpi_tables() function for now, to avoid
build errors. It is enabled in a following patch.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
6afa63a5a6 acpi: Add a linker list for ACPI tables
At present we call lots of functions to generate the required ACPI tables.
It would be better to standardise these functions and allow them to be
automatically collected and used when needed.

Add a linker list to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
437992d3a9 acpi: Use finer-grained control of ACPI-table generation
Rather than keying everything off ACPIGEN, use the main
GENERATE_ACPI_TABLE option to determine whether the core ACPI code
is included. Make sure these option are not enabled in SPL/TPL since we
never generate tables there.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
a9e414dd50 efi: Correct address handling with ACPI tables
The current EFI implementation confuses pointers and addresses. Normally
we can get away with this but in the case of sandbox it causes failures.

Despite the fact that efi_allocate_pages() returns a u64, it is actually
a pointer, not an address. Add special handling to avoid a crash when
running 'bootefi hello'.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
47642428ee efi: Correct call to write_acpi_tables()
This must be passed a ulong, not a u64. Fix it to avoid LTO warnings on
sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
233f0e35a3 x86: Move the acpi table to generic global_data
Allow this to be used on any arch. Also convert to using macros so that
we can check the CONFIG option in C code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Simon Glass
e1722fcb7d x86: Allow any arch to generate ACPI tables
These have sadly found their way to ARM now. Allow any arch to support
generating ACPI tables.

Disable this for the tools build.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-01-25 11:44:36 -07:00
Tom Rini
da158ec5f2 Pull request for efi-2022-04-rc1-2
Documentation:
 
 * describe printf() format codes
 
 UEFI
 
 * enable more algorithms for UEFI image verification, e.g. SHA256-RSA2048
 
 General
 
 * simplify printing short texts for GUIDs
 * provide a unit test for printing GUIDs
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 =GoR6
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Merge tag 'efi-2022-04-rc1-2' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2022-04-rc1-2

Documentation:

* describe printf() format codes

UEFI

* enable more algorithms for UEFI image verification, e.g. SHA256-RSA2048

General

* simplify printing short texts for GUIDs
* provide a unit test for printing GUIDs
2022-01-22 15:43:36 -05:00