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Per https://github.com/ostreedev/ostree/issues/2080#issuecomment-623614483
A huge benefit of ed25519 (and ECC in general) is that keys are very
short - short enough that it's completely reasonable to inline
them into a command line argument.
And I think that's a good model; it makes the keys very visible.
For example, someone could easily copy-paste a commandline
argument from a webpage (secured via TLS) that says to run
`ostree remote add --sign-verify=ed25519=inline:KEY`.
I think we should encourage removing the writable bits from
executables. This has happened to me:
https://thomask.sdf.org/blog/2019/11/09/take-care-editing-bash-scripts.html
And not having the writable bit may help prevent hardlink
corruption with OSTree in some cases.
We can't do this by default, but add a convenient CLI flag
for it.
All of the underlying libostree APIs have supported passing `NULL`
for a merge deployment for...a long time. But we never plumbed
it up into the CLI.
Add a `--no-merge` option to aid people who want to do a "factory reset":
https://github.com/ostreedev/ostree/issues/1793
Commit e474033e removed the redirection of incorrect public keys
aimed to generate a lot of files without correct public signature.
Fix the test by returning back the creation of files containing
incorrect public keys for ed25519.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
`libsodium` is an implementation detail. In particular, I'd like
to consider using OpenSSL for ed25519 (if libsodium isn't configured
and openssl is).
So switch the name of the exposed feature and adjust the tests.
Previously we would pass the `verification-key` and `verification-file`
to all backends, ignoring errors from loading keys until we
found one that worked.
Instead, change the options to be `verification-<engine>-key`
and `verification-<engine>-file`, and then
rework this to use standard error handling; barf explicitly if
we can't load the public keys for example. Preserve
the semantics of accepting the first valid signature. The
first signature error is captured, the others are currently
compressed into a `(and %d more)` prefix.
And now that I look at this more closely there's a lot of
duplication between the two code paths in pull.c for verifying;
will dedup this next.
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 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.
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>
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>
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 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>
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>
Option "--no-sign-verify" disable the signature verification including
GPG. So use it in tests instead of "--no-gpg-verification".
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Add functions for keys generation to be used in signing-related tests:
- gen_ed25519_keys initializing variables ED25519PUBLIC, ED25519SEED and
ED25519SECRET with appropriate base64-encoded keys
- gen_ed25519_random_public print a random base64 public key (used in
tests with wrong keys)
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Extend the ed25519 tests with checking the system-wide directory
keys loading code(with the help of redefinition).
Added test of ed25519 revoking keys mechanism.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
`ostree sign` is able to use several public keys provided via arguments
and via file with keys.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
API changes:
- added function `ostree_sign_add_pk()` for multiple public keys using.
- `ostree_sign_set_pk()` now substitutes all previously added keys.
- added function `ostree_sign_load_pk()` allowed to load keys from file.
- `ostree_sign_ed25519_load_pk()` able to load the raw keys list from file.
- use base64 encoded public and private ed25519 keys for CLI and keys file.
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Add tests checking:
- sign mechanism is in working state
- module 'dummy' is able to sign/verify commit
- module 'ed25519' is able to sign/verify commit
- both modules could be used for the same commit
- 'ostree sign' builtin works with commits
- 'ostree commit' builtin able to sign commits
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
The [dev-overlay](332c6ab3b9/src/cmd-dev-overlay)
script shipped in coreos-assembler mostly exists to deal
with the nontrivial logic around SELinux policy. Let's make
the use case of "commit some binaries overlaying a base tree, using
the base's selinux policy" just require a magical
`--selinux-policy-from-base` argument to `ostree commit`.
A new C API was added to implement this in the case of `--tree=ref`;
when the base directory is already checked out, we can just reuse
the existing logic that `--selinux-policy` was using.
Requires: https://github.com/ostreedev/ostree/pull/2039
This test keeps occasionally failing in CI - as expected, because
we retry 8 times for an object but it's completely possible for
us to hit the <0.5% chance of 50% failure 8 times in a row.
Since the max errors from the server is 100, set retries to the
same thing.
Previously we made an effort to use the [Fedora Standard Test Interface](https://docs.fedoraproject.org/en-US/ci/standard-test-interface/).
This effort was not very successful; the primary thing that
it really died on is Ansible just didn't support rebooting
very well. I think that's since gotten better, but even
then, Ansible wasn't the best thing for a test framework
for us anyways.
In the meantime Fedora CoreOS happened emphasizing Ignition
and not "post-hoc reconciliation" models like Ansible over
ssh.
And, [coreos-assembler](https://github.com/coreos/coreos-assembler) happened too.
Furthermore, we really need to test OSTree's interaction
with Ignition as we've invented several special things there.
Then most recently, I've been working on having
cosa/kola support running externally defined tests:
https://github.com/coreos/coreos-assembler/pull/1215
There's a lot of things to clean up after this but at least this
works for me:
```
$ cd /srv/fcos
$ cosa kola run -- --parallel 4 --output-dir tmp/kola -E ~/src/github/ostreedev/ostree/ 'ext.ostree.*'
```
NOTE: This *does not* drop ostree binaries into the target. See:
https://github.com/coreos/coreos-assembler/pull/1252#issuecomment-600623315
This drops our dependency on Python in the installed tests, and
also fixes a few bugs that came up.
I disabled the `itest-bare-user-root.sh` one because it's
entangled with the shell script infrastructure for the unit tests.
Move the alternative builds into the Jenkinsfile.
Update it to do a FCOS build + kola run.
We drop the flatpak/rpm-ostree runs for now; the former
will needs some work to do the automatic virt bits. The
latter I think we can circle back to when we e.g. figure
out how to include rpm-ostree's tests in kola runs.
This checks whether gpg-import will properly update the keyring for a
key that already exists. In particular, we check that changing the key
expiration time or revoking it results in commit verification failure
after re-importing the keys.
Add explicit tests for
`ostree_gpg_verify_result_require_valid_signature` in addition to the
implicit tests via `ostree pull` and others. This allows checking the
error code raised.
Currently `ostree_gpg_verify_result_require_valid_signature` always
returns an error that the key used for the signature is missing from the
keyring. However, all that's been determined is that there are no valid
signatures. The error could also be from an expired signature, an
expired key, a revoked key or an invalid signature.
Provide values for these missing errors and return them from
`ostree_gpg_verify_result_require_valid_signature`. The description of
each result is appended to the error message, but since the result can
contain more than one signature but only a single error can be returned,
the status of the last signature is used for the error code. See the
comment for rationale.
Related: flatpak/flatpak#1450
Currently tests are always run against the full lgpl2.sig file with all
signatures, but it should also be possible to specify one or more of the
individual lgpgl2.sig<N> files.
Drop the current usage of passing the signature index in the test data
since it's always specific to the test function and instead provide an
optional array of signature files for the test fixture to sign with.
