linux/meta-security.git/meta-integrity/classes/ima-evm-rootfs.bbclass, branch styhead

meta-integrity: Enable passing private key password

2024-07-01T11:07:58+00:00

Allow users to pass the private key password using IMA_EVM_EVMCTL_KEY_PASSWORD. Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

meta-integrity: Add IMA_EVM_PRIVKEY_KEY_OPT to pass options to evmctl

2024-07-01T11:07:58+00:00

Introduce IMA_EVM_PRIVKEY_KEY_OPT to pass additional options to evmctl when signing files. An example is --keyid that makes evmctl use a specific key id when signing files. Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

meta-integrity: Remove stale variables and documentation

2024-07-01T11:07:58+00:00

Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

ima,evm: Add two variables to write filenames and signatures into

2023-11-08T12:09:28+00:00

Add two variables IMA_FILE_SIGNATURES_FILE and EVM_FILE_SIGNATURES_FILE for filenames where the ima_evm_sign_rootfs script can write the names of files and their IMA or EVM signatures into. Both variables are optional. The content of the file with IMA signatures may look like this: /usr/bin/gpiodetect ima:0x0302046730eefd... /usr/bin/pwscore ima:0x0302046730eefd004... Having the filenames along with their signatures is useful for signing files in the initrd when the initrd is running out of a tmpfs filesystem that has support for xattrs. This allows to enable an IMA appraisal policy already in the initrd where files must be signed as soon as the policy becomes active. Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

ima: Sign all executables and the ima-policy in the root filesystem

2023-05-06T11:54:09+00:00

Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

ima: Rename IMA_EVM_POLICY_SYSTEMD to IMA_EVM_POLICY

2023-05-06T11:54:09+00:00

The IMA policy will be specified using the IMA_EVM_POLICY variable since systemd will not be involved in loading the policy but the init script will load it. Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

ima: Fix the IMA kernel feature

2023-05-06T11:54:09+00:00

Fix the IMA kernel feature. Remove outdated patches and add ima.cfg holding kernel configuration options for IMA and EVM. Signed-off-by: Stefan Berger Signed-off-by: Armin Kuster

meta-integrity: Convert to new override syntax

2021-08-01T15:47:08+00:00

Signed-off-by: Armin Kuster

ima-evm-rootfs.bbclass: avoid generating /etc/fstab for wic

2021-02-24T04:34:51+00:00

Or else wic will fail without "--no-fstab-update" option. Signed-off-by: Ming Liu Signed-off-by: Armin Kuster

meta: refactor IMA/EVM sign rootfs

2021-02-24T04:34:51+00:00

The current logic in ima-evm-rootfs.bbclass does not guarantee ima_evm_sign_rootfs is the last function in IMAGE_PREPROCESS_COMMAND by appending to it, for instance, if there are other "_append" being used as it's the case in openembedded-core/meta/classes/image.bbclass: | IMAGE_PREPROCESS_COMMAND_append = " ${@ 'systemd_preset_all;' \ | if bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d) \ | and not bb.utils.contains('IMAGE_FEATURES', 'stateless-rootfs', True, | False, d) else ''} reproducible_final_image_task; " and ima-evm-rootfs should be in IMAGE_CLASSES instead of in INHERIT since that would impact all recipes but not only image recipes. To fix the above issues, we introduce a ima_evm_sign_handler setting IMA/EVM rootfs signing requirements/dependencies in event bb.event.RecipePreFinalise, it checks 'ima' distro feature to decide if IMA/EVM rootfs signing logic should be applied or not. Also add ima-evm-keys to IMAGE_INSTALL. Signed-off-by: Ming Liu Signed-off-by: Armin Kuster