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I was trying to followup the `--selinux-policy-from-base` work
to add a `cosa build --fast=overlay` for coreos-assembler,
but hit on the fact that using e.g. `--owner-uid` disables
commit optimizations.
A while ago, https://github.com/ostreedev/ostree/pull/1643 landed
which optimized this for the case where no modifications are provided.
But, we really need the SELinux policy bits, and it's super convenient
to run `ostree commit` as non-root.
It's fairly surprising actually that it's taken us so long to
iterate on a good interface for this "commit changes on top of a base"
model. In practice, many nontrivial cases really end up needing
to do a (hardlink) checkout, and that case is optimized.
But for this coreos-assembler work I want to directly overlay onto
a commit object another commit object.
That previous PR above added exactly the API we need, so let's
expose it in the CLI.
What you can see happening in the test is that we provide
`--owner-uid 42`, but that only applies to directories/files
that were added in the commit.
And now that I look at this, I think what we really want here
is to avoid changing directories that exist in the base, but
eh; in practice the main use here is for `--owner-uid 0` while
committing as non-root; and that works fine with this since
the baseline uid will be zero as well.
This is another attempt to avoid having duplicated menu entries caused by
GRUB having support to parse BLS snippets and the 15_ostree script adding
menu entries as well.
The previous attempt was in commit 985a141002 ("grub2: Exit gracefully if
the configuration has BLS enabled") but that lead to users not having menu
entries at all, due having an old GRUB version that was not able to parse
the BLS snippets.
This happened because the GRUB bootloader is never updated in the ESP as
a part of the OSTree upgrade transaction.
The logic is similar to the previous commit, the 15_ostree script exits if
able to determine that the bootloader can parse the BLS snippets directly.
But this time it will not only check that a BLS configuration was enabled,
but also that a /boot/grub2/.grub2-blscfg-supported file exists. This file
has to be created by a component outside of OSTree that also takes care of
updating GRUB to a version that has proper BLS support.
This code wasn't written with idiomatic GError usage; it's not standard
to construct an error up front and continually append to its
message. The exit from a function is usually `return TRUE`,
with error conditions before that.
Updating it to match style reveals what I think is a bug;
we were silently ignoring failure to parse key files.
I am getting SELinux xattrs committed in local development (inside
https://github.com/cgwalters/coretoolbox ), which
throws off the hardcoded sizes in this test.
When we're only pulling a subset of the refs available in the remote, it
doesn't make sense to copy the remote's summary (which may not be valid
for the local repo). This makes the check here match the one done
several lines above when we decide whether to error out if there's no
remote summary available.
This extends the fix in https://github.com/ostreedev/ostree/pull/935 for
the case of collection-refs.
Also, add a unit test for this issue, based on the existing one in
pull-test.sh.
This will be useful in the unit test added by the next commit. It just
passes OSTREE_REPO_PULL_FLAGS_MIRROR to the call to
ostree_repo_pull_from_remotes_async().
Noticed this while writing tests for a core `ostree_sysroot_load()`
entrypoint. And decided to do the same for `ostree_repo_open()`,
and while there also noted we had a duplicate error prefixing
for the open (more recently `glnx_opendirat()` automatically
prefixes with the path).
Correctly return "error" from `ostree_repo_sign_commit()`
in case if GPG is not enabled.
Use glnx_* functions in signature related pull code for clear
error handling if GPG isn't enabled.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Do not mask implementation anymore since we have a working
engines integrated with pulling mechanism.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Pull should to fail if no known signature available in remote's
configuration or well-known places.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
The "new style" code generally avoids `goto err` because it conflicts
with `__attribute__((cleanup))`. This fixes a compiler warning.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
The "new style" code generally avoids `goto err` because it conflicts
with `__attribute__((cleanup))`. This fixes a compiler warning.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Additional test of signatures check behavior during the pull
with keys file containing wrong signatures and correct verification
key. Both are set as a part of remote's configuration.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Improve error handling for signatures checks -- passthrough real
reasons from signature engines instead of using common messages.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Return the collected errors from signing engines in case if verification
failed for the commit.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Add more precise error handling for ed25519 initialization.
Check the initialization status at the beginning of every public
function provided by ed25519 engine.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Change the API of supporting functions `_load_public_keys()` and
`_ostree_repo_sign_verify()` -- pass repo object and remote name
instead of OtPullData object. This allows to use these functions
not only in pull-related places.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
We don't need anymore stubs for verification options for remotes
in case if ostree built without GPG support.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Add test for signature verification of summary file during the pull.
Adopted version of GPG tests from `test-pull-summary-sigs.sh`.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Allow to sign the summary file with alternative signing mechanism.
Added new options:
- --sign-type -- select the engine (defaults to ed25519)
- --sign -- secret key to use for signing
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Allow to run the pulling test if there is no ed25519 support.
Test the signed pull only with dummy engine. Fixed tests names.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Usage of 'g_warning()' inside keys loading funcrion lead to false
failure: the key loading attempt for the wrong engine breaks the
pulling process instead of trying to use this key with correct engine.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
After splitting out the common key to secret/public inside the dummy engine we
need to pass the the public key for remote with dummy engine usage.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
The initial implementation with single key for secret and public parts
doesn't allow to test pulling with several signing engines used.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>