heads/initrd/bin/tpm-reset

#!/bin/bash
. /etc/functions

echo '*****'
echo '***** WARNING: This will erase all keys and secrets from the TPM'
echo '*****'

prompt_new_owner_password

tpmr reset "$key_password"
Add dual support for real bash and busybox's bash(ash) - modify bash to have it configured with -Os 2023-02-08 21:01:48 +00:00			`#!/bin/bash`
helper to do a forcible TPM reset (issue #27) 2017-04-12 10:45:15 +00:00			`. /etc/functions`

tpm-reset: Reduce duplication with tpmr reset Use common password prompt logic in tpm-reset rather than duplicating in tpmr reset. Use common logic in config-gui.sh to reset the TPM. Use common logic in oem-factory-reset to reset TPM. Fixes extra prompts for TPM2 owner password even when choosing to use a common password. Fix sense of "NO TPM" check in TOTP generation (which only happened to work because CONFIG_TPM is empty for TPM2). Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm> 2023-02-22 21:26:53 +00:00			`echo '*****'`
			`echo '***** WARNING: This will erase all keys and secrets from the TPM'`
			`echo '*****'`
Addition of qemu-(fb)whiptail-tpm2(-hotp) boards -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 2022-08-25 18:43:31 +00:00
gui-init, tpm-reset: Enforce TPM password maximum length TPM password must be 1-32 characters. Loop if the password is not valid or the repeated password doesn't match, so the user can try again. Move prompt_new_owner_password to functions and use in both gui-init and tpm-reset. Fixes #1336 Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm> 2023-03-13 17:33:30 +00:00			`prompt_new_owner_password`
Addition of qemu-(fb)whiptail-tpm2(-hotp) boards -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 2022-08-25 18:43:31 +00:00
tpmr: Provide reset for both TPM1 and TPM2 tpmr reset now works for both TPM1 and TPM2; bring in TPM1 logic from tpm-reset. Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm> 2023-03-10 20:07:44 +00:00			`tpmr reset "$key_password"`