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40c34453df
Exception: scripts sourcing/calls within etc/ash_functions continues to use old TRACE functions until we switch to bash completely getting rid of ash. This would mean getting rid of legacy boards (flash + legacy boards which do not have enough space for bash in flash boards) once and for all. Signed-off-by: Thierry Laurion <insurgo@riseup.net>
46 lines
981 B
Bash
Executable File
46 lines
981 B
Bash
Executable File
#!/bin/bash
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# This will unseal and unecncrypt the drive encryption key from the TPM
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# The TOTP secret will be shown to the user on each encryption attempt.
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# It will then need to be bundled into initrd that is booted with Qubes.
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set -e -o pipefail
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. /etc/functions
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TPM_INDEX=3
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TPM_SIZE=312
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. /etc/functions
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TRACE_FUNC
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mkdir -p /tmp/secret
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key_file="$1"
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if [ -z "$key_file" ]; then
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key_file="/tmp/secret/secret.key"
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fi
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DEBUG "CONFIG_TPM: $CONFIG_TPM"
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DEBUG "CONFIG_TPM2_TOOLS: $CONFIG_TPM2_TOOLS"
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DEBUG "Show PCRs"
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DEBUG "$(pcrs)"
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for tries in 1 2 3; do
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read -s -p "Enter LUKS TPM Disk Unlock Key passphrase (blank to abort): " tpm_password
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echo
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if [ -z "$tpm_password" ]; then
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die "Aborting unseal disk encryption key"
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fi
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if DO_WITH_DEBUG --mask-position 6 \
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tpmr unseal "$TPM_INDEX" "0,1,2,3,4,5,6,7" "$TPM_SIZE" \
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"$key_file" "$tpm_password"; then
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exit 0
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fi
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DEBUG $(pcrs)
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warn "Unable to unseal disk encryption key"
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done
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die "Retry count exceeded..."
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