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Let's make sure we're testing with the latest changes in mkosi. This
includes both the switch to systemd-repart and ukify, making sure we
get extra testing coverage for those components.
This also drops options from the centos config that have been removed
in the newer mkosi.
For some reason idmapping runs into some issues so we disable it for
now.
Meson started warning when 'setup' is not used:
WARNING: Running the setup command as `meson [options]` instead of `meson setup [options]` is ambiguous and deprecated.
Also add more quoting in output to make the message clearer.
This erase_obj() machinery looks like voodoo and creates an awful lot of
noise as soon as we get back to building with -O0. We can do this in a
more simple way by introducing a struct that holds the information we
need on cleanup. When building with optimization enabled, all this gets
inlined and the eraser vanishes.
- Mention "/please-review" in the contributing guide
- Remove "needs-rebase" on push
- Don't add "please-review" if a green label is set
- Don't add please-review label to draft PRs
- Add please-review when a PR moves out of draft
When a pull request is opened/updated, add "please-review" and
remove a few other labels.
When a comment is made with /please-review on a PR. Add the
"please-review" label to the PR.
Rather than passing seeds up to userspace via EFI variables, pass seeds
directly to the kernel's EFI stub loader, via LINUX_EFI_RANDOM_SEED_TABLE_GUID.
EFI variables can potentially leak and suffer from forward secrecy
issues, and processing these with userspace means that they are
initialized much too late in boot to be useful. In contrast,
LINUX_EFI_RANDOM_SEED_TABLE_GUID uses EFI configuration tables, and so
is hidden from userspace entirely, and is parsed extremely early on by
the kernel, so that every single call to get_random_bytes() by the
kernel is seeded.
In order to do this properly, we use a bit more robust hashing scheme,
and make sure that each input is properly memzeroed out after use. The
scheme is:
key = HASH(LABEL || sizeof(input1) || input1 || ... || sizeof(inputN) || inputN)
new_disk_seed = HASH(key || 0)
seed_for_linux = HASH(key || 1)
The various inputs are:
- LINUX_EFI_RANDOM_SEED_TABLE_GUID from prior bootloaders
- 256 bits of seed from EFI's RNG
- The (immutable) system token, from its EFI variable
- The prior on-disk seed
- The UEFI monotonic counter
- A timestamp
This also adjusts the secure boot semantics, so that the operation is
only aborted if it's not possible to get random bytes from EFI's RNG or
a prior boot stage. With the proper hashing scheme, this should make
boot seeds safe even on secure boot.
There is currently a bug in Linux's EFI stub in which if the EFI stub
manages to generate random bytes on its own using EFI's RNG, it will
ignore what the bootloader passes. That's annoying, but it means that
either way, via systemd-boot or via EFI stub's mechanism, the RNG *does*
get initialized in a good safe way. And this bug is now fixed in the
efi.git tree, and will hopefully be backported to older kernels.
As the kernel recommends, the resultant seeds are 256 bits and are
allocated using pool memory of type EfiACPIReclaimMemory, so that it
gets freed at the right moment in boot.
https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#example-including-and-excluding-paths
> If you define a path with the ! character, you must also define at least one
> path without the ! character. If you only want to exclude paths, use
> paths-ignore instead.
>
> The order that you define patterns matters:
> A matching negative pattern (prefixed with !) after a positive match will
> exclude the path.
> A matching positive pattern after a negative match will include the path
> again.
Even if some of the exluded paths *could* impact the build, generally it's a
waste of time to do mkosi builds on them. Let's skip to releave the builders a
bit.
GitHub Action `devel-freezer` helps with development freeze notifications
during the RC phase. It will create comments using predefined messages on
newly created and updated PRs when the RC tag has been released.
Also, it will update comments once a new major version has been released.
Documentation available at: https://github.com/redhat-plumbers-in-action/devel-freezer
In the Xen case, it's the hypervisor which manages kexec. We thus
have to ask it whether a kernel is loaded, instead of relying on
/sys/kernel/kexec_loaded.
Also, unify the string quotation a bit and drop one unnecessary
expression syntax (as everything in `if` statements is automatically
evaluated as an expression).
* chore: enable scorecard action
* chore: add badge to the README file
* chore: enable on config file update
* chore: update scorecard to 2.0.4
* chore: run scorecard on PR at main branch
* chore: add condition to publish_result key
* chore: skip upload to code scanning if PR
* chore: only runs scorecard in the main repo
Resolves: #25042
