On Mon, 2021-01-25 at 14:47 +0530, Sumit Garg wrote:

Hi Jarkko,

On Fri, 22 Jan 2021 at 23:42, Jarkko Sakkinen [off-list ref] wrote:

quoted

On Thu, Jan 21, 2021 at 05:23:45PM +0100, Jerome Forissier wrote:

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On 1/21/21 4:24 PM, Jarkko Sakkinen wrote:

quoted

On Thu, Jan 21, 2021 at 05:07:42PM +0200, Jarkko Sakkinen wrote:

quoted

On Thu, Jan 21, 2021 at 09:44:07AM +0100, Jerome Forissier wrote:

quoted

On 1/21/21 1:02 AM, Jarkko Sakkinen via OP-TEE wrote:

quoted

On Wed, Jan 20, 2021 at 12:53:28PM +0530, Sumit Garg wrote:

quoted

On Wed, 20 Jan 2021 at 07:01, Jarkko Sakkinen [off-list ref] wrote:

quoted

On Tue, Jan 19, 2021 at 12:30:42PM +0200, Jarkko Sakkinen wrote:

quoted

On Fri, Jan 15, 2021 at 11:32:31AM +0530, Sumit Garg wrote:

quoted

On Thu, 14 Jan 2021 at 07:35, Jarkko Sakkinen [off-list ref] wrote:

quoted

On Wed, Jan 13, 2021 at 04:47:00PM +0530, Sumit Garg wrote:

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Hi Jarkko,

On Mon, 11 Jan 2021 at 22:05, Jarkko Sakkinen [off-list ref] wrote:

quoted

On Tue, Nov 03, 2020 at 09:31:44PM +0530, Sumit Garg wrote:

quoted

Add support for TEE based trusted keys where TEE provides the functionality
to seal and unseal trusted keys using hardware unique key.

Refer to Documentation/tee.txt for detailed information about TEE.

Signed-off-by: Sumit Garg <redacted>

I haven't yet got QEMU environment working with aarch64, this produces
just a blank screen:

./output/host/usr/bin/qemu-system-aarch64 -M virt -cpu cortex-a53 -smp 1 -kernel output/images/Image -initrd output/images/rootfs.cpio -serial stdio

My BuildRoot fork for TPM and keyring testing is located over here:

https://git.kernel.org/pub/scm/linux/kernel/git/jarkko/buildroot-tpmdd.git/

The "ARM version" is at this point in aarch64 branch. Over time I will
define tpmdd-x86_64 and tpmdd-aarch64 boards and everything will be then
in the master branch.

To create identical images you just need to

$ make tpmdd_defconfig && make

Can you check if you see anything obviously wrong? I'm eager to test this
patch set, and in bigger picture I really need to have ready to run
aarch64 environment available.

I would rather suggest you to follow steps listed here [1] as to test
this feature on Qemu aarch64 we need to build firmwares such as TF-A,
OP-TEE, UEFI etc. which are all integrated into OP-TEE Qemu build
system [2]. And then it would be easier to migrate them to your
buildroot environment as well.

[1] https://lists.trustedfirmware.org/pipermail/op-tee/2020-May/000027.html
[2] https://optee.readthedocs.io/en/latest/building/devices/qemu.html#qemu-v8

-Sumit

Can you provide 'keyctl_change'? Otherwise, the steps are easy to follow.

$ cat keyctl_change

diff --git a/common.mk b/common.mk
index aeb7b41..663e528 100644
--- a/common.mk
+++ b/common.mk

@@ -229,6 +229,7 @@ BR2_PACKAGE_OPTEE_TEST_SDK ?= $(OPTEE_OS_TA_DEV_KIT_DIR)

 BR2_PACKAGE_OPTEE_TEST_SITE ?= $(OPTEE_TEST_PATH)
 BR2_PACKAGE_STRACE ?= y
 BR2_TARGET_GENERIC_GETTY_PORT ?= $(if
$(CFG_NW_CONSOLE_UART),ttyAMA$(CFG_NW_CONSOLE_UART),ttyAMA0)
+BR2_PACKAGE_KEYUTILS := y

 # All BR2_* variables from the makefile or the environment are appended to
 # ../out-br/extra.conf. All values are quoted "..." except y and n.

diff --git a/kconfigs/qemu.conf b/kconfigs/qemu.conf
index 368c18a..832ab74 100644
--- a/kconfigs/qemu.conf
+++ b/kconfigs/qemu.conf

@@ -20,3 +20,5 @@ CONFIG_9P_FS=y

 CONFIG_9P_FS_POSIX_ACL=y
 CONFIG_HW_RANDOM=y
 CONFIG_HW_RANDOM_VIRTIO=y
+CONFIG_TRUSTED_KEYS=y
+CONFIG_ENCRYPTED_KEYS=y

quoted

After I've successfully tested 2/4, I'd suggest that you roll out one more
version and CC the documentation patch to Elaine and Mini, and clearly
remark in the commit message that TEE is a standard, with a link to the
specification.

Sure, I will roll out the next version after your testing.

Thanks, I'll try this at instant, and give my feedback.

I bump into this:

$ make run-only
ln -sf /home/jarkko/devel/tpm/optee/build/../out-br/images/rootfs.cpio.gz /home/jarkko/devel/tpm/optee/build/../out/bin/
ln: failed to create symbolic link '/home/jarkko/devel/tpm/optee/build/../out/bin/': No such file or directory
make: *** [Makefile:194: run-only] Error 1

Could you check if the following directory tree is built after
executing the below command?

$ make -j`nproc`
CFG_IN_TREE_EARLY_TAS=trusted_keys/f04a0fe7-1f5d-4b9b-abf7-619b85b4ce8c

$ tree out/bin/
out/bin/
├── bl1.bin -> /home/sumit/build/optee/build/../trusted-firmware-a/build/qemu/release/bl1.bin
├── bl2.bin -> /home/sumit/build/optee/build/../trusted-firmware-a/build/qemu/release/bl2.bin
├── bl31.bin ->
/home/sumit/build/optee/build/../trusted-firmware-a/build/qemu/release/bl31.bin
├── bl32.bin ->
/home/sumit/build/optee/build/../optee_os/out/arm/core/tee-header_v2.bin
├── bl32_extra1.bin ->
/home/sumit/build/optee/build/../optee_os/out/arm/core/tee-pager_v2.bin
├── bl32_extra2.bin ->
/home/sumit/build/optee/build/../optee_os/out/arm/core/tee-pageable_v2.bin
├── bl33.bin ->
/home/sumit/build/optee/build/../edk2/Build/ArmVirtQemuKernel-AARCH64/RELEASE_GCC49/FV/QEMU_EFI.fd
├── Image -> /home/sumit/build/optee/build/../linux/arch/arm64/boot/Image
└── rootfs.cpio.gz ->
/home/sumit/build/optee/build/../out-br/images/rootfs.cpio.gz

0 directories, 9 files

-Sumit

I actually spotted a build error that was unnoticed last time:

make[2]: Entering directory '/home/jarkko/devel/tpm/optee/edk2/BaseTools/Tests'
/bin/sh: 1: python: not found

I'd prefer not to install Python2. It has been EOL over a year.

AFAIK, everything should build fine with Python3. On my Ubuntu 20.04
machine, this is accomplished by installing package "python-is-python3"
(after uninstalling "python-is-python2" if need be).

$ ls -l /usr/bin/python
lrwxrwxrwx 1 root root 7 Apr 15  2020 /usr/bin/python -> python3

Right, just found about this in unrelated context :-) [*]

Hope this will work out...

[*] https://github.com/surge-synthesizer/surge/pull/3655

Now I get

Traceback (most recent call last):
  File "/home/jarkko/Projects/tpm/optee/edk2/BaseTools/Tests/RunTests.py", line 36, in <module>
    allTests = GetAllTestsSuite()
  File "/home/jarkko/Projects/tpm/optee/edk2/BaseTools/Tests/RunTests.py", line 33, in GetAllTestsSuite
    return unittest.TestSuite([GetCTestSuite(), GetPythonTestSuite()])
  File "/home/jarkko/Projects/tpm/optee/edk2/BaseTools/Tests/RunTests.py", line 25, in GetCTestSuite
    import CToolsTests
  File "/home/jarkko/Projects/tpm/optee/edk2/BaseTools/Tests/CToolsTests.py", line 22, in <module>
    import TianoCompress
  File "/home/jarkko/Projects/tpm/optee/edk2/BaseTools/Tests/TianoCompress.py", line 69, in <module>
    TheTestSuite = TestTools.MakeTheTestSuite(locals())
  File "/home/jarkko/Projects/tpm/optee/edk2/BaseTools/Tests/TestTools.py", line 43, in MakeTheTestSuite
    for name, item in localItems.iteritems():
AttributeError: 'dict' object has no attribute 'iteritems'

Right. Same here after removing all traces of Python2 from my system :-/

A couple of fixes are needed:
1. EDK2 needs to be upgraded to tag or later [1]
2. The PYTHON3_ENABLE environment variable needs to be set to TRUE [2]

[1] https://github.com/OP-TEE/manifest/pull/177
[2] https://github.com/OP-TEE/build/pull/450

BTW, Is to *really* impossible to test this with plain BuildRoot.  It's
obvious that this forks BR internally.

I mean even if I get this working once, this will feels like a clumsy way
to test Aarch64 regularly. I use BuildRoot extensively for x86 testing. And
it would be nice to be able to start doing regular ARM testing.

The main reason to guide you towards the OP-TEE build system is that
you will be able to build all the firmwares (TF-A, OP-TEE, edk2 etc.)
from source. If you don't need to rebuild those then I have prepared a
flash firmware binary blob for your testing (attached flash.bin). So
Qemu cmdline will look like:

$ qemu-system-aarch64 -nographic -s -machine virt,secure=on -cpu
cortex-a57 -kernel out/bin/Image -no-acpi -append
'console=ttyAMA0,38400 keep_bootcon root=/dev/vda2' -initrd
out/bin/rootfs.cpio.gz -smp 2 -m 1024 -bios flash.bin -d unimp

Here you can use "Image" and "rootfs.cpio.gz" from your plain BR builds.

Give it a try and let me know if this works for you.

quoted

The mainline BuildRoot does have bunch of BR2_PACKAGE_OPTEE_* included.
Are they all broken?

These aren't broken but they are used to package OP-TEE user-space
components into rootfs but they aren't required to test Trusted Keys
as it uses kernel interface to OP-TEE instead.

-Sumit

quoted

Here's a reference where I got with that endeavour:

https://lore.kernel.org/linux-integrity/X%2Fx+N0fgrzIZTeNi@kernel.org/ (local)

/Jarkko