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And I made a few more API tweaks, such as supporting `Path`
objects directly and also not needing e.g. `commit = commit`, see
- cfa7c71126
- 679bce4cc7
This adds infrastructure to the Rust test suite for destructive
tests, and adds a new `transactionality` test which runs
rpm-ostree in a loop (along with `ostree-finalize-staged`) and
repeatedly uses either `kill -9`, `reboot` and `reboot -ff`.
The main goal here is to flush out any "logic errors".
So far I've validated that this passes a lot of cycles
using
```
$ kola run --qemu-image=fastbuild-fedora-coreos-ostree-qemu.qcow2 ext.ostree.destructive-rs.transactionality --debug --multiply 8 --parallel 4
```
a number of times.
I was thinking a bit more recently about the "live" changes
stuff https://github.com/coreos/rpm-ostree/issues/639
(particularly since https://github.com/coreos/rpm-ostree/pull/2060 )
and I realized reading the last debates in that issue that
there's really a much simpler solution; do exactly the same
thing we do for `ostree admin unlock`, except mount it read-only
by default.
Then, anything that wants to modify it does the same thing
libostree does for `/sysroot` and `/boot` as of recently; create
a new mount namespace and do the modifications there.
The advantages of this are numerous. First, we already have
all of the code, it's basically just plumbing through a new
entry in the state enumeration and passing `MS_RDONLY` into
the `mount()` system call.
"live" changes here also naturally don't persist, unlike what
we are currently doing in rpm-ostree.
We were committing the whole tempdir, which seems to fail
in Travis because the GPG agent Unix domain socket ends up there too,
and ostree refuses to commit sockets.
We use a similar trick to having a `sysroot -> .` symlink on the real root
here to support both /boot on root as well as on a separate filesystem. No
matter how it's mounted `/boot/xyz` will always refer to the file you'd
expect.
This is nicer than my previous attempts at this because there's no
configuration nor auto-detection required.
This is the dual of 1f3c8c5b3d
where we output more detail when signapi fails to validate.
Extend the API to return a string for success, which we output
to stdout.
This will help the test suite *and* end users validate that the expected
thing is happening.
In order to make this cleaner, split the "verified commit" set
in the pull code into GPG and signapi verified sets, and have
the signapi verified set contain the verification string.
We're not doing anything with the verification string in the
pull code *yet* but I plan to add something like
`ostree pull --verbose` which would finally print this.
To aid debuggability, when we find a commit that isn't signed
by our expected key, output a specific error message with the
key.
(And then add code to switch to just printing the count beyond 3
because the test suite injects 100 keys and hopefully no one
ever actually does that)
I'm thinking about adding an implementation of ed25519 signatures
with OpenSSL (so we can ship the feature with Fedora CoreOS
without requiring an additional library) and in preparation for
that it's essential that we validate that libsodium-generated
signatures and OpenSSL-generated signatures are compatible.
I don't know if they are yet actually, but the goal of this
new test is to add a pre-generated repository with a signed
commit generated by libsodium.
This will catch if e.g. there's ever a change in libsodium,
or if existing libsodium implementation versions (e.g. the
one in Debian) might differ from what we ship here.
Add support for a devicetree directory at /usr/lib/modules/$kver/dtb/.
In ARM world a general purpose distribution often suppports multiple
boards with a single operating system. However, OSTree currently only
supports a single device tree, which does not allow to use the same
OSTree on different ARM machines. In this scenario typically the boot
loader selects the effective device tree.
This adds device tree directory support for the new boot artefact
location under /usr/lib/modules. If the file `devicetree` does not
exist, then the folder dtb will be checked. All devicetrees are hashed
into the deployment hash. This makes sure that even a single devicetree
change leads to a new deployment and hence can be rolled back.
The loader configuration has a new key "devicetreepath" which contains
the path where devicetrees are stored. This is also written to the
U-Boot variable "fdtdir". The boot loader is expected to use this path
to load a particular machines device tree from.
Closes: #1900
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
There's a lot going on here. First, this is intended to run
nicely as part of the new [cosa/kola ext-tests](https://github.com/coreos/coreos-assembler/pull/1252).
With Rust we can get one big static binary that we can upload,
and include a webserver as part of the binary. This way we don't
need to do the hack of running a container with Python or whatever.
Now, what's even better about Rust for this is that it has macros,
and specifically we are using [commandspec](https://github.com/tcr/commandspec/)
which allows us to "inline" shell script. I think the macros
could be even better, but this shows how we can intermix
pure Rust code along with using shell safely enough.
We're using my fork of commandspec because the upstream hasn't
merged [a few PRs](https://github.com/tcr/commandspec/pulls?q=is%3Apr+author%3Acgwalters+).
This model is intended to replace *both* some of our
`make check` tests as well.
Oh, and this takes the obvious step of using the Rust OSTree bindings
as part of our tests. Currently the "commandspec tests" and "API tests"
are separate, but nothing stops us from intermixing them if we wanted.
I haven't yet tried to write destructive tests with this but
I think it will go well.
Follow the precedent set in https://github.com/coreos/rpm-ostree/pull/2106
and rename the directory, to more clearly move away from the
"uninstalled" test model. Prep for Rust-based tests.
The goal here is to move the code towards a model
where the *client* can explicitly specify which signature types
are acceptable.
We retain support for `sign-verify=true` for backwards compatibility.
But in that configuration, a missing public key is just "no signatures found".
With `sign-verify=ed25519` and no key configured, we can
explicitly say `No keys found for required signapi type ed25519`
which is much, much clearer.
Implementation side, rather than maintaining `gboolean sign_verify` *and*
`GPtrArray sign_verifiers`, just have the array. If it's `NULL` that means
not to verify.
Note that currently, an explicit list is an OR of signatures, not AND.
In practice...I think most people are going to be using a single entry
anyways.
We were doing a check to verify that `ostree admin upgrade` wouldn't
accept a downgrade without `--allow-downgrade`. However, there's no
guarantee that the commit it's upgrading from is older than HEAD^ (what
we're upgrading to). Specifically, if the test runs fast enough, the
timestamps could be equal, since the lowest resolution is seconds.
Rework the test so that we first upgrade to HEAD, which we're sure is at
least 1 second apart from HEAD^, and *then* check that downgrade
protection is enforced.
We also can't use `rev-parse testos/buildmaster/x86_64-runtime` as a way
to know what commit the host is sitting on since the ref might've gone
ahead. Instead, just use `ostree admin status | head -n1`. (I played
with using the `ostree/I/J/K` refs, but those depend on what the
boot/subbootversion is and can easily change if we change previous
tests).
In a CI run I think one of these `ostree show` commands is failing.
While that output would be useful, the actual `err.txt` usually
has what we want too.
There's a lot of historical baggage associated with GPG verification
and `ostree pull` versus `ostree pull-local`. In particular nowadays,
if you use a `file://` remote things are transparently optimized
to e.g. use reflinks if available.
So for anyone who doesn't trust the "remote" repository, you should
really go through through the regular
`ostree remote add --sign-verify=X file://`
path for example.
Having a mechanism to say "turn on signapi verification" *without*
providing keys goes back into the "global state" debate I brought
up in https://github.com/ostreedev/ostree/issues/2080
It's just much cleaner architecturally if there is exactly one
path to find keys: from a remote config.
So here in contrast to the GPG code, for `pull-local` we explictily
disable signapi validation, and the `ostree_repo_pull()` API just
surfaces flags to disable it, not enable it.
For the same reason as https://github.com/coreos/rpm-ostree/pull/2094.
What we care most about is that the new commit we pull is newer than the
one we're currently sitting on, not necessarily that it's newer than the
branch itself, which it might not be if e.g. we're trying to deploy a
commit older than the tip but still newer than the deployment (via
`--override-commit`).
The way `timestamp-check` works might be too restrictive in some
situations. Essentially, we need to support the case where users want to
pull an older commit than the current tip, but while still guaranteeing
that it is newer than some even older commit.
This will be used in Fedora CoreOS. For more information see:
https://github.com/coreos/rpm-ostree/pull/2094https://github.com/coreos/fedora-coreos-tracker/issues/481
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.
