The 8 qemu-* targets all contained nearly-identical copies of the
targets to prepare the TPM/disk/etc. and then run Qemu. The only
significant differences were for TPM1/TPM2 (extra swtpm_setup step,
addition of --tpm2 to swtpm_setup and swtpm). ROOT_DISK_IMG used := or
= differently in some boards, := was kept.
targets/qemu.mk now defines all Qemu targets and is included only for
qemu-* boards (by defining BOARD_TARGETS in each of those boards).
The documentation was moved from qemu-coreboot-fbwhiptail-tpm1-hotp/
qemu-coreboot-fbwhiptail-tpm1-htop.md to targets/qemu.md. The other 7
qemu boards' symlinks to that file were removed.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
For iterating, enabling these in the board config is easiest. It's
also possible to manually inject config.user ahead of time, or enable
at runtime without flashing, but the normal enable/flash/reboot path
does not work in qemu since it is unable to flash.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
tpm2-tools is able to log pcap files of TPM2 commands, which can be
inspected with wireshark. Add CONFIG_TPM2_CAPTURE_PCAP to capture
these from the tpmr wrapper, and enable for qemu TPM2 boards.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
Include bash in all builds. Remove CONFIG_BASH.
Remove CONFIG_BASH_IS_ASH from busybox configuration and clean up hacks
in modules/bash.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
- /tmp/debug.log is created and appended by all TRACE and DEBUG calls in code
- fix some logic errors seen when no DEBUG entry were outputted in /tmp/debug.log
Invoke swtpm_setup --create-config-files skip-if-exist to create local
CA files under the current user account, so user does not need
read/write access to /var/lib/swtpm-localca.
Pass --tpm2 to manufacture a TPM2 instead of TPM1.2.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
The actual use of curl was already removed, update tpm2-tools patch to
also remove the check for curl. Remove the curl module and
CONFIG_CURL.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
-coreboot support of TPM v2.0 (shared config for TPM2 support across all 4 previous variations)
-swtpm set to be launched under TPM v2.0 mode under board config
-Documentation file under each board.md softlinks to qemu-coreboot-fbwhiptail-tpm1.md (which has been generalized)
This is skeleton for TPM v2 integration under Heads
-------------
WiP
TODO:
- libcurl cannot be built as a tpm2-tools dependency as of now not sure why. curl currently needs to be added in board config to be built
- Note: tpm-reset (master and here) needs some review, no handle of no tpm use case. Caller is responsible to not call it otherwise does nothing
- init tries to bind fd and fails currently
- Note: Check if whiptail is different of fbwhiptail in clearing screen. As of now every clear seems to be removed, still whiptail clears previous console output
- When no OS' /boot can be mounted, do not try to TPM reset (will fail)
- seal-hotpkey is not working properly
- setting disk unlock key asks for TPM ownership passphrase (sealing in NV requires ownership, but text is misleading user as if reowning TPM)
- We should cache input, feed tpm behind the scene and wipe passphrase and state clearly that this is TPM disk unlock kye passphrase.
- primary key from TPM2 is invalid most of the time from kexec-select-boot and verifying global hashes but is setuped correctly at disk unlock key setup
- would be nice to take advantage of bash function tracing to understand where we are for debugging purposes, code takes ash in consideration only
- tpmr says it implements nv calls but actually doesn't. Removing those falsely wrapped functions would help.
- Implementing them would be better
- REVIEW TODOS IN CODE
- READD CIRCLECI CONFIG
Current state:
- TPM unseal works without disk unlock key and generates TOTP properly (was missing die condition at unseal to not produce always good TOTP even if invalid)
- TPM disk encryption key fails. Hypothesis is that sealing with USB drivers loaded and measures in inconsistent with sealed with/without.
- TPM disk unsealing happens without USB modules being loaded in non-HOTP setup. This fails.
- Current tests are with fbwhiptail (no clear called so having traces on command line of what happens)
- Testing with HOTP implementation for sealing/unsealing since that forces USB module loads on each boot to remove this from failing possibilities
