71 lines
3.0 KiB
Plaintext
71 lines
3.0 KiB
Plaintext
# Adds TrustFence configuration
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#
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# To use it add the following line to conf/local.conf:
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#
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# INHERIT += "trustfence"
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#
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# Inheriting this class enables the following default TrustFence configuration:
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#
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# * Disabled console
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#
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# Default secure console configuration
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TRUSTFENCE_CONSOLE_DISABLE ?= "0"
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# Uncomment to enable the console with the specified passphrase
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#TRUSTFENCE_CONSOLE_PASSPHRASE_ENABLE = "my_secure_passphrase"
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# Alternatively, uncommment to enable the console with the specified GPIO
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#TRUSTFENCE_CONSOLE_GPIO_ENABLE = "4"
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# Default secure boot configuration
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TRUSTFENCE_SIGN ?= "1"
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TRUSTFENCE_SIGN_KEYS_PATH ?= "default"
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TRUSTFENCE_DEK_PATH ?= "default"
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TRUSTFENCE_ENCRYPT_ENVIRONMENT ?= "1"
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# Trustfence initramfs image recipe
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TRUSTFENCE_INITRAMFS_IMAGE ?= "dey-image-trustfence-initramfs"
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IMAGE_FEATURES += "dey-trustfence"
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UBOOT_EXTRA_CONF = ""
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python () {
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import binascii
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import hashlib
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import os
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# Secure console configuration
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if (d.getVar("TRUSTFENCE_CONSOLE_DISABLE", True) == "1"):
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d.appendVar("UBOOT_EXTRA_CONF", "CONFIG_CONSOLE_DISABLE=y ")
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if d.getVar("TRUSTFENCE_CONSOLE_PASSPHRASE_ENABLE", True):
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passphrase_hash = hashlib.sha256(d.getVar("TRUSTFENCE_CONSOLE_PASSPHRASE_ENABLE")).hexdigest()
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d.appendVar("UBOOT_EXTRA_CONF", 'CONFIG_CONSOLE_ENABLE_PASSPHRASE=y CONFIG_CONSOLE_ENABLE_PASSPHRASE_KEY=\\"%s\\" ' % passphrase_hash)
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elif d.getVar("TRUSTFENCE_CONSOLE_GPIO_ENABLE", True):
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d.appendVar("UBOOT_EXTRA_CONF", " CONFIG_CONSOLE_ENABLE_GPIO=y CONFIG_CONSOLE_ENABLE_GPIO_NR=%s " % d.getVar("TRUSTFENCE_CONSOLE_GPIO_ENABLE"))
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# Secure boot configuration
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if (d.getVar("TRUSTFENCE_SIGN_KEYS_PATH") == "default"):
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d.setVar("TRUSTFENCE_SIGN_KEYS_PATH", d.getVar("TOPDIR") + "/trustfence");
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if (d.getVar("TRUSTFENCE_DEK_PATH") == "default"):
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d.setVar("TRUSTFENCE_DEK_PATH", d.getVar("TRUSTFENCE_SIGN_KEYS_PATH") + "/dek.bin");
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if (d.getVar("TRUSTFENCE_SIGN", True) == "1"):
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d.appendVar("UBOOT_EXTRA_CONF", "CONFIG_SIGN_IMAGE=y ")
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if d.getVar("TRUSTFENCE_SIGN_KEYS_PATH", True):
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d.appendVar("UBOOT_EXTRA_CONF", 'CONFIG_SIGN_KEYS_PATH=\\"%s\\" ' % d.getVar("TRUSTFENCE_SIGN_KEYS_PATH"))
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if (d.getVar("TRUSTFENCE_UNLOCK_KEY_REVOCATION", True) == "1"):
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d.appendVar("UBOOT_EXTRA_CONF", "CONFIG_UNLOCK_SRK_REVOKE=y ")
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if d.getVar("TRUSTFENCE_KEY_INDEX", True):
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d.appendVar("UBOOT_EXTRA_CONF", "CONFIG_KEY_INDEX=%s " % d.getVar("TRUSTFENCE_KEY_INDEX"))
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if (d.getVar("TRUSTFENCE_DEK_PATH", True) not in [None, "0"]):
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d.appendVar("UBOOT_EXTRA_CONF", 'CONFIG_DEK_PATH=\\"%s\\" ' % d.getVar("TRUSTFENCE_DEK_PATH"))
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if (d.getVar("TRUSTFENCE_ENCRYPT_ENVIRONMENT", True) == "1"):
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d.appendVar("UBOOT_EXTRA_CONF", 'CONFIG_ENV_AES=y CONFIG_ENV_AES_CAAM_KEY=y')
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}
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# SDCARD image is not supported when encryption is enabled, so disable it in such cases
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IMAGE_FSTYPES_remove = "${@'' if d.getVar('TRUSTFENCE_DEK_PATH', True) == '0' else 'sdcard'}"
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