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2023-03-04security/tpm: add TPM log format as per 2.0 specSergii Dmytruk
Used by default for all boards with TPM2 which don't specify log format explicitly. Change-Id: I0fac386bebab1b7104378ae3424957c6497e84e1 Ticket: https://ticket.coreboot.org/issues/422 Ticket: https://ticket.coreboot.org/issues/423 Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com> Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68748 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2023-03-04security/tpm: add TPM log format as per 1.2 specSergii Dmytruk
Used by default for all boards with TPM1 which don't specify log format explicitly. Ticket: https://ticket.coreboot.org/issues/423 Change-Id: I89720615a75573d44dd0a39ad3d7faa78f125843 Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com> Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68747 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2023-01-11security/tpm/tspi/log.c: fix strncpy() usageSergii Dmytruk
Change-Id: Ib24129829bef3764a8ba1e2c0d92bc42c5cfbc8d Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69708 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2023-01-11security/tpm: make tspi/crtm.c agnostic to log formatSergii Dmytruk
Change-Id: I3013bd5f29f1412fbe646dc74d8946704b750a66 Ticket: https://ticket.coreboot.org/issues/423 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69445 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2023-01-11treewide: stop calling custom TPM log "TCPA"Sergii Dmytruk
TCPA usually refers to log described by TPM 1.2 specification. Change-Id: I896bd94f18b34d6c4b280f58b011d704df3d4022 Ticket: https://ticket.coreboot.org/issues/423 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69444 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2022-11-19security/tpm: make log format configurable via KconfigSergii Dmytruk
This commit doesn't add any new format options, just makes selecting existing format explicit. Ticket: https://ticket.coreboot.org/issues/422 Change-Id: I3903aff54e01093bc9ea75862bbf5989cc6e6c55 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68746 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
2022-11-12security/tpm: improve tlcl_extend() signatureSergii Dmytruk
Until now tcg-2.0/tss.c was just assuming certain buffer size and hash algorithm. Change it to accept digest type, which the call sites know. Also drop `uint8_t *out_digest` parameter which was always `NULL` and was handled only by tcg-1.2 code. Change-Id: I944302b502e3424c5041b17c713a867b0fc535c4 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68745 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
2022-09-02cbfs/vboot: Adapt to new vb2_digest APIJulius Werner
CL:3825558 changes all vb2_digest and vb2_hash functions to take a new hwcrypto_allowed argument, to potentially let them try to call the vb2ex_hwcrypto API for hash calculation. This change will open hardware crypto acceleration up to all hash calculations in coreboot (most notably CBFS verification). As part of this change, the vb2_digest_buffer() function has been removed, so replace existing instances in coreboot with the newer vb2_hash_calculate() API. Due to the circular dependency of these changes with vboot, this patch also needs to update the vboot submodule: Updating from commit id 18cb85b5: 2load_kernel.c: Expose load kernel as vb2_api to commit id b827ddb9: tests: Ensure auxfw sync runs after EC sync This brings in 15 new commits. Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I287d8dac3c49ad7ea3e18a015874ce8d610ec67e Reviewed-on: https://review.coreboot.org/c/coreboot/+/66561 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jakub Czapiga <jacz@semihalf.com>
2022-06-01cbfs: Rename TYPE_FIT to TYPE_FIT_PAYLOADJulius Werner
There are too many "FIT" in firmware land. In order to reduce possible confusion of CBFS_TYPE_FIT with the Intel Firmware Interface Table, this patch renames it to CBFS_TYPE_FIT_PAYLOAD (including the cbfstool argument, so calling scripts will now need to replace `-t fit` with `-t fit_payload`). Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I826cefce54ade06c6612c8a7bb53e02092e7b11a Reviewed-on: https://review.coreboot.org/c/coreboot/+/64735 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-05-24security/tpm/crtm: Add a function to measure the bootblock on SoC levelWerner Zeh
On platforms where the bootblock is not included in CBFS anymore (because it is part of another firmware section (IFWI or a different CBFS), the CRTM measurement fails. This patch adds a new function to provide a way at SoC level to measure the bootblock. Following patches will add functionality to retrieve the bootblock from the SoC related location and measure it from there. In this way the really executed code will be measured. Change-Id: I6d0da1e95a9588eb5228f63151bb04bfccfcf04b Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64492 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-05-24security/tpm/crtm: Use bootblock from FMAP on non x86 platformsWerner Zeh
All non x86 platforms use bootblock in FMAP (see Makefile.inc). Add a build time check for that so that all the other possibilities (CBFS or other places for the bootblock) are dropped at build time. Change-Id: Ic18336a0b79b5d319c2cdfecb7e1eeb89d241206 Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64520 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2022-05-24security/tpm/crtm.c: Fix !CONFIG_BOOTBLOCK_IN_CBFS measuringArthur Heymans
On some platforms the bootblock is not placed in cbfs, but embedded inside another binary that loads in into DRAM/SRAM. e8217b11f1 (Kconfig: Add an option to skip adding a cbfs bootblock on x86) removed adding a cbfs file containing the bootblock in that case. Change-Id: Id47ecedbc8713ebd5d9814f1c4faf43c52780447 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64418 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-05-20CBMEM: Change declarations for initialization hooksKyösti Mälkki
There are efforts to have bootflows that do not follow a traditional bootblock-romstage-postcar-ramstage model. As part of that CBMEM initialisation hooks will need to move from romstage to bootblock. The interface towards platforms and drivers will change to use one of CBMEM_CREATION_HOOK() or CBMEM_READY_HOOK(). Former will only be called in the first stage with CBMEM available. Change-Id: Ie24bf4e818ca69f539196c3a814f3c52d4103d7e Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63375 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2022-05-11security/tpm/crtm.c: Remove set but unused variableArthur Heymans
Change-Id: I3c97cb57fe13adee217783973691748d6c542abe Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/63070 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2022-04-24src: Remove unused <console/cbmem_console.h>Elyes HAOUAS
Found using: diff <(git grep -l '#include <console/cbmem_console.h>' -- src/) <(git grep -l 'cbmemc_init\|cbmemc_tx_byte\|cbmem_dump_console' -- src/) |grep "<" Change-Id: I24a6ab7420e079769e19793848c92c187529e253 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/60913 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <martinroth@google.com>
2022-01-12src: Remove redundant <rules.h> and <commonlib/bsd/compiler.h>Elyes HAOUAS
<rules.h> and <commonlib/bsd/compiler.h> are always automatically included in all compilation units by the build system Change-Id: I9528c47f4b7cd22c5a56d6a59b3bfe53197cc4d8 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/60932 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2021-12-06cbfs: Remove deprecated APIsJulius Werner
This patch removes all remaining pieces of the old CBFS API, now that the last straggling use cases of it have been ported to the new one (meaning cbfs_map()/cbfs_load()/etc... see CB:39304 and CB:38421). Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I1cec0ca2d9d311626a087318d1d78163243bfc3c Reviewed-on: https://review.coreboot.org/c/coreboot/+/59682 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2021-12-03cbfs | tspi: Join hash calculation for verification and measurementJulius Werner
This patch moves the CBFS file measurement when CONFIG_TPM_MEASURED_BOOT is enabled from the lookup step into the code where a file is actually loaded or mapped from flash. This has the advantage that CBFS routines which just look up a file to inspect its metadata (e.g. cbfs_get_size()) do not cause the file to be measured twice. It also removes the existing inefficiency that files are loaded twice when measurement is enabled (once to measure and then again when they are used). When CBFS verification is enabled and uses the same hash algorithm as the TPM, we are even able to only hash the file a single time and use the result for both purposes. Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I70d7066c6768195077f083c7ffdfa30d9182b2b7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59681 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-06-21security/tpm/tspi/crtm.c: Fix early initArthur Heymans
If the early crtm is not initialised there is nothing to write to PCR in the early tpm init. Change-Id: I9fa05f04588321163afc817de29c03bd426fc1f0 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55470 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Johnny Lin <Johnny_Lin@wiwynn.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Christian Walter <christian.walter@9elements.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-06-16security/tpm/tspi: Reduce scope of tspi_init_crtmArthur Heymans
This is only called locally. Change-Id: Ie3eaf659a2868eee1d4688885495c413f94f42e2 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55469 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Johnny Lin <Johnny_Lin@wiwynn.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Christian Walter <christian.walter@9elements.com>
2021-05-21security/tpm/tspi: Always measure the cache to pcrArthur Heymans
Most of the time when INIT_BOOTBLOCK is selected, the cache should be empty here anyway, so this is a no-op. But when it's not empty that means the bootblock loaded some other file before it got to the TPM init part (which is possible, for example, if hooks like bootblock_soc_init() load something). Change-Id: I4aea86c094abc951d7670838f12371fddaffaa90 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/54717 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-05-21security/tpm/tspi/crtm: Fix FMAP TPM PCRArthur Heymans
TPM_RUNTIME_DATA_PCR is for "for measuring data which changes during runtime e.g. CMOS, NVRAM..." according to comments. FMAP does not change during runtime. Change-Id: I23e61a2dc25cd1c1343fb438febaf8771d1c0621 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52968 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2021-05-06security/tpm: Add option to init TPM in bootblockArthur Heymans
When using a hardware assisted root of trust measurement, like Intel TXT/CBnT, the TPM init needs to happen inside the bootblock to form a proper chain of trust. Change-Id: Ifacba5d9ab19b47968b4f2ed5731ded4aac55022 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51923 Reviewed-by: Christian Walter <christian.walter@9elements.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-05security/tpm/crtm: Measure FMAP into TPMArthur Heymans
FMAP is used to look up cbfs files or other FMAP regions so it should be measured too. TESTED: on qemu q35 with swtpm Change-Id: Ic424a094e7f790cce45c5a98b8bc6d46a8dcca1b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52753 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-12-02cbfs: Move more stuff into cbfs_boot_lookup()Julius Werner
cbfs_boot_locate() is supposed to be deprecated eventually, after slowly migrating all APIs to bypass it. That means common features (like RO-fallback or measurement) need to be moved to the new cbfs_boot_lookup(). Also export the function externally. Since it is a low-level API and most code should use the higher-level loading or mapping functions instead, put it into a new <cbfs_private.h> to raise the mental barrier for using this API (this will make more sense once cbfs_boot_locate() is removed from <cbfs.h>). Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I4bc9b7cbc42a4211d806a3e3389abab7f589a25a Reviewed-on: https://review.coreboot.org/c/coreboot/+/39327 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-10-26security/tpm/tspi/crtm: Add line break to debug messagesFrans Hendriks
Add line break at debug messages. Tested on Facebook FBG1701 Change-Id: Idbfcd6ce7139efcb79e2980b366937e9fdcb3a4e Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46659 Reviewed-by: Christian Walter <christian.walter@9elements.com> Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-09-21src/security: Drop unneeded empty linesElyes HAOUAS
Change-Id: Icb6057ac73fcc038981ef95a648420ac00b3c106 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44808 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-06-17security/tpm: Change wording of variable namesDuncan Laurie
Change the name of these variables to 'allowlist'. Change-Id: I9d5553988a1c9972b8f1ebaeee20878b23a8aa9b Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42316 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-26Remove MAYBE_STATIC_BSS and ENV_STAGE_HAS_BSS_SECTIONKyösti Mälkki
After removal of CAR_MIGRATION there are no more reasons to carry around ENV_STAGE_HAS_BSS_SECTION=n case. Replace 'MAYBE_STATIC_BSS' with 'static' and remove explicit zero-initializers. Change-Id: I14dd9f52da5b06f0116bd97496cf794e5e71bc37 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40535 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-05-19security/tpm/tspi: Fix handling of white space delimited listharshit
The current implementation uses strcmp() without splitting the list and therefore returns false even when the string pointed to by 'name' is a part of 'whitelist'. The patch fixes this problem. Also, update help text of CONFIG_TPM_MEASURED_BOOT_RUNTIME_DATA to space delimited list to align it with the other lists we use. Change-Id: Ifd285162ea6e562a5bb18325a1b767ac2e4276f3 Signed-off-by: Harshit Sharma <harshitsharmajs@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41280 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2020-05-18src: Remove unused 'include <string.h>'Elyes HAOUAS
Unused includes found using following commande: diff <(git grep -l '#include <string.h>' -- src/) <(git grep -l 'memcpy\|memmove\|memset\|memcmp\|memchr\|strdup\|strconcat\|strnlen\|strlen\|strchr\|strncpy\|strcpy\|strcmp\|strncmp\|strspn\|strcspn\|atol\|strrchr\|skip_atoi\|STRINGIFY' -- src/) |grep -v vendorcode |grep '<' Change-Id: Ibaeec213b6019dfa9c45e3424b38af0e094d0c51 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41242 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-04src/security: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I51f5764b57fb8b62e3a4b3d41bd32e5330a2983c Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40057 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-04-01security/tpm: Fix compile-time elimination for SEPARATE_VERSTAGEJulius Werner
CB:35077 pulled TPM measurement code into the bootblock, with the catch that we'll only cache PCR extensions and not actually write them to the TPM until it gets initialized in a later stage. The goal of this was to keep the heavy TPM driver code out of the size-constrained bootblock. Unfortunately, a small mistake in the tspi_tpm_is_setup() function prevents the compiler from eliminating references to the TPM driver code in the bootblock on platforms with CONFIG_VBOOT and CONFIG_SEPARATE_VERSTAGE. In those cases vboot_logic_executed() is known at compile-time to be 0, but that still makes the final expression `return 0 || tpm_is_setup;`. We know that tpm_is_setup can never be set to 1 in the bootblock, but the compiler doesn't. This patch rewrites the logic slightly to achieve the same effect in a way that the compiler can follow (because we only really need to check tpm_is_setup in the stage that actually runs the vboot code). Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: Idc25acf1e6c02d929639e83d529cc14af80e0870 Reviewed-on: https://review.coreboot.org/c/coreboot/+/39993 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Christian Walter <christian.walter@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-03-31security/tpm: Include mrc.bin in CRTM if presentBill XIE
mrc.bin, on platforms where it is present, is code executed on CPU, so it should be considered a part of CRTM. cbfs_locate_file_in_region() is hooked to measurement here too, since mrc.bin is loaded with it, and CBFS_TYPE_MRC (the type of mrc.bin) is measured to TPM_CRTM_PCR rather than TPM_RUNTIME_DATA_PCR. TODO: I have heard that SMM is too resource-limited to link with vboot library, so currently tspi_measure_cbfs_hook() is masked in SMM. Please correct me if I am wrong. Change-Id: Ib4c3cf47b919864056baf725001ca8a4aaafa110 Signed-off-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38858 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-03-31security/vboot: Decouple measured boot from verified bootBill XIE
Currently, those who want to use measured boot implemented within vboot should enable verified boot first, along with sections such as GBB and RW slots defined with manually written fmd files, even if they do not actually want to verify anything. As discussed in CB:34977, measured boot should be decoupled from verified boot and make them two fully independent options. Crypto routines necessary for measurement could be reused, and TPM and CRTM init should be done somewhere other than vboot_logic_executed() if verified boot is not enabled. In this revision, only TCPA log is initialized during bootblock. Before TPM gets set up, digests are not measured into tpm immediately, but cached in TCPA log, and measured into determined PCRs right after TPM is up. This change allows those who do not want to use the verified boot scheme implemented by vboot as well as its requirement of a more complex partition scheme designed for chromeos to make use of the measured boot functionality implemented within vboot library to measure the boot process. TODO: Measure MRC Cache somewhere, as MRC Cache has never resided in CBFS any more, so it cannot be covered by tspi_measure_cbfs_hook(). Change-Id: I1fb376b4a8b98baffaee4d574937797bba1f8aee Signed-off-by: Bill XIE <persmule@hardenedlinux.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35077 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2020-03-17src (minus soc and mainboard): Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I89b10076e0f4a4b3acd59160fb7abe349b228321 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39611 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-19src/security: Remove unused <stdlib.h>Elyes HAOUAS
Change-Id: I0b5c375baf7911ebced2f8c43a88aae014c877ad Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33694 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-29security/tpm: Drop CAR_GLOBAL_MIGRATION supportArthur Heymans
Change-Id: I1c09eda6164efb390de4626f52aafba59962f9c4 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37029 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-17security/tpm: Add a Kconfig to disregard INVALID_POSTINIT on startupArthur Heymans
There are use cases where TPM has already been set up in a previous stage, e.g. TXT or when a CPU reset without a platform reset happens. If this is the case the TPM startup will return a INVALID_POSTINIT (return code 0x26). This adds a Kconfig to allow platforms to disregard that return code. Change-Id: I238b30866f78608c414de877b05a73cf8fdb9bbd Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36027 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-09-15src/security: Remove unused #include <fmap.h>Elyes HAOUAS
Change-Id: I9db59d5db2ed3e792251a94b67fb277d9160e4e8 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33734 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-11Revert "security/tpm/tss/tcg-2.0: Add multi digits support to tlcl_extend()"Julius Werner
This reverts commit fdb9805d6884090fd7bf62dbdf9c858692e55fb4. CB:33252 wasn't reviewed by a TPM maintainer and breaks abstraction layers (pulling TSS-details into TSPI, completely changing interpretation of the arguments to tlcl_extend() based on TSS version). It's also not clear why it was implemented the way it was (should have been much easier and cleaner ways to achieve the same thing). Since the author is not reacting, let's revert it for now. It can be cleaned up and resubmitted later. (Not reverting the header changes since those are not objectionable, and there are later patches dependent on it.) Change-Id: Ice44f55c75a0acc07794fe41c757a7bca75406eb Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35351 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-09-07security/tpm: Use correct hash digest lengthsJacob Garber
TPMU_HA is a union of all the different hash digests, and so sizeof(TPMU_HA) evaluates to 64 (the size of the largest one). This will lead to out-of-bounds writes when copying smaller digests, so use the specific digest size for each algorithm. Change-Id: Ic9101f157d5a19836b200ecd99f060de552498d2 Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: Coverity CID 14049{49,50,51,52,53,54,55,56,57,58,60,61,62} Reviewed-on: https://review.coreboot.org/c/coreboot/+/35287 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-09-05security/tpm/tss/tcg-2.0: Add multi digits support to tlcl_extend()Frans Hendriks
To support multi digists the tlcl_extend() for TPM2 expects TPML_DIGEST_VALUE pointer as input argument. BUG=N/A TEST=Build binary and verified logging on Facebook FBG-1701 Change-Id: I8d86c41c23e4e93a84e0527d7cddcfd30d5d8394 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33252 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lance Zhao <lance.zhao@gmail.com>
2019-08-26Split MAYBE_STATIC to _BSS and _NONZERO variantsKyösti Mälkki
These are required to cover the absensce of .data and .bss sections in some programs, most notably ARCH_X86 in execute-in-place with cache-as-ram. Change-Id: I80485ebac94b88c5864a949b17ad1dccdfda6a40 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35003 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-08-08tpm/tspi: include vb2_sha for vb2_get_hash_algorithm_nameJoel Kitching
BUG=b:124141368 TEST=make clean && make test-abuild BRANCH=none Change-Id: I2e04c16e309d765353f152203a44e90d997394d1 Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34742 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-05-09vboot: include vb2_sha.h when requiredJoel Kitching
Should include vb2_sha.h header when SHA library functions or constants are required. This replaces NEED_VB2_SHA_LIBRARY. BUG=b:124141368, chromium:956474 TEST=make clean && make test-abuild BRANCH=none Change-Id: I9f32174dbf3de05fbe5279cb8017888757abf368 Signed-off-by: Joel Kitching <kitching@google.com> Cq-Depend: chromium:1583820 Reviewed-on: https://review.coreboot.org/c/coreboot/+/32454 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-03-29src: Use include <reset.h> when appropriateElyes HAOUAS
Change-Id: I3b852cae4ef84d257bf1e5486447583bdd16b441 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29301 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2019-03-20src: Use 'include <string.h>' when appropriateElyes HAOUAS
Drop 'include <string.h>' when it is not used and add it when it is missing. Also extra lines removed, or added just before local includes. Change-Id: Iccac4dbaa2dd4144fc347af36ecfc9747da3de20 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31966 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2019-03-08coreboot: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)Julius Werner
This patch is a raw application of find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g' Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-03-07security/tpm: Fix TCPA log featurePhilipp Deppenwiese
Until now the TCPA log wasn't working correctly. * Refactor TCPA log code. * Add TCPA log dump fucntion. * Make TCPA log available in bootblock. * Fix TCPA log formatting. * Add x86 and Cavium memory for early log. Change-Id: Ic93133531b84318f48940d34bded48cbae739c44 Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29563 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2019-02-25security/vboot: Add measured boot modePhilipp Deppenwiese
* Introduce a measured boot mode into vboot. * Add hook for stage measurements in prog_loader and cbfs. * Implement and hook-up CRTM in vboot and check for suspend. Change-Id: I339a2f1051e44f36aba9f99828f130592a09355e Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/c/29547 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-10-31security/tpm: Add function to measure a region deviceWerner Zeh
Add a new function which can hash a given region device and extend a PCR in the TPM with the result. The needed SHA algorithms are included from 3rdparty/vboot and thus not duplicated in the coreboot tree. For now VB2_LIB is not usable in postcar stage. Follow-up commits will add the ability to use the lib in postcar as well. Once this feature is ready, the library will be included in postcar stage to make this function available in every stage. Change-Id: I126cc3500fd039d63743db78002a04d201ab18aa Signed-off-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-on: https://review.coreboot.org/29234 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-10-30security/tpm: Fix references to tpm_setup functionJonathan Neuschäfer
Change-Id: Ia97ddcd5471f8e5db50f57b67a766f08a08180b1 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/29349 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-10-18tpm/tspi: clean up tpm_setup function flowJoel Kitching
Introduce two helper functions for more readable code. Use epilogue function instead of goto for error handling. BUG=None TEST=None Change-Id: Ibea44880683a301e82ee2ba049003c36fcb44eba Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/29026 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-10-17tpm/tpm_setup: fail on invalid result from tlcl_resumeJoel Kitching
BUG=b:114018226 TEST=compile coreboot Change-Id: I8f5df2b0119d35e4000fe62bf1bba6ca07f925f3 Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/28748 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-21security/tpm: Fix TPM 1.2 state machine issuesPhilipp Deppenwiese
* Fix ACPI resume path compilation for TPM ramstage driver * Move enabling of the TPM prior activation and remove reboot return status from TPM enable. More information can be found via the TCG specification v1.2 Tested=Elgon Change-Id: Ided110e0c1889b302e29acac6d8d2341f97eb10b Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/28085 Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-07security/tpm: Check for NULL pointerFurquan Shaikh
Change bce49c2 (security/tpm: Improve TCPA log generation) missed checking for NULL pointer before accessing the tcpa_table returned by tcpa_log_init. This change fixes the boot hang observed on octopus by ensuring pointer is checked for NULL before using it. BUG=b:111403731 TEST=Verified that octopus boots up fine. Change-Id: I2e46197065f8db1dc028a85551546263e60d46b2 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/27933 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-03security/tpm: Improve TCPA log generationPhilipp Deppenwiese
* Make tcpa_log_init static and move init code into the tcpa_log_add_table_entry routine. * Add more checks for log initialization. * Fix minor issues Change-Id: I215d79eed7ad17c6ab87f0c4b14a282e519ef07d Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/27769 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-07-31security/tpm/tspi: Set return type of tcpa_log_add_table_entry as voidFurquan Shaikh
Change f849972 (security/vboot: Enable TCPA log extension) enabled support for adding TCPA log to CBMEM. However, if CBMEM is not online, this function doesn't do anything and returns early. This condition is not really a valid error condition as it depends on when the call to tcpa_log_add_table_entry is made. Since tcpa_log_add_table_entry returns -1 when cbmem is not online, tpm_extend_pcr prints an error message with prefix "ERROR:". This can confuse any scripts trying to catch errors in boot flow. This CL makes the following changes: 1. Removes the print in tpm_extend_pcr since tcpa_log_add_table_entry already prints out appropriate ERROR messages in case of failure to add log entry. 2. Since the return value of tcpa_log_add_table_entry is not used anymore, return type for tcpa_log_add_table_entry is changed to void. BUG=b:112030232 Change-Id: I32d313609a3e57845e67059b3747b81b5c8adb2a Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/27757 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Justin TerAvest <teravest@chromium.org>
2018-07-30security/vboot: Enable TCPA log extensionPhilipp Deppenwiese
* Implement TCPA log for tspi extend function. * Hook tcpa_log_init into vboot tpm_setup function. * Add TCPA log output for vboot GBB flags and HWID Change-Id: I22b1aa8da1a95380c39715727615ce5ce4c9443f Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/27727 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-07-28security/tpm: Add TCPA logging functionalityPhilipp Deppenwiese
* TCG spec only applies to BIOS or UEFI. * Therefore implement coreboot TCPA compliant log in CBMEM. * Write CBMEM log into the coreboot table for CBMEM tool access Change-Id: I0a52494f647d21e2587231af26ed13d62b3a72f5 Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/22867 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-06-04security/tpm: Unify the coreboot TPM software stackPhilipp Deppenwiese
* Remove 2nd software stack in pc80 drivers directory. * Create TSPI interface for common usage. * Refactor TSS / TIS code base. * Add vendor tss (Cr50) directory. * Change kconfig options for TPM to TPM1. * Add user / board configuration with: * MAINBOARD_HAS_*_TPM # * BUS driver * MAINBOARD_HAS_TPM1 or MAINBOARD_HAS_TPM2 * Add kconfig TPM user selection (e.g. pluggable TPMs) * Fix existing headers and function calls. * Fix vboot for interface usage and antirollback mode. Change-Id: I7ec277e82a3c20c62a0548a1a2b013e6ce8f5b3f Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/24903 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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