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Wrappers a referenced gpgme_verify_result_t so detailed verify results
can be examined independently of executing a verify operation.
_ostree_gpg_verifier_check_signature() now returns this object instead
of a single valid/invalid boolean, but the idea is for OstreeRepo to also
return this object for commit signature verification so it can be utilized
at the CLI layer (and possibly by other programs).
In anticipation of API enhancements for GPG signature verification, which
would otherwise require a non-functional stub version were GPGME excluded.
GPGME is a pretty lightweight dependency, and the motivation to exclude
it is not clear.
This sets the stage for more advanced signature management.
(Also, talking to GPG over pipes sucks.)
Previously we were spawning gpgv2 with a bunch of --keyring options
for /usr/share/ostree/trusted.gpg.d/ and whatever other keyring files
were explicitly added. GPGME has no public API for multiple keyrings,
so we work around the issue by setting up a temp directory to serve as
a fake "home" directory for the crypto engine and then concatenate all
the keyring files into a single public keyring (pubring.gpg).
Unfortunately at present we do this on every signature verification.
There's a desire to cache this concatenation, but the problem is the
user may be unprivileged. So it seems the cache would have to be per
user under $XDG_CACHE_HOME, which OSTree doesn't otherwise use. I'm
open to suggestions.
We do at least clean up the temp directory when finished, and I have
further API changes planned to OstreeGpgVerifier to help mitigate the
performance impact.
It avoids gobject-introspection warnings:
src/libostree/bupsplit.h:42: Warning: OSTree: symbol='bupsplit_find_ofs': Unknown namespace for symbol 'bupsplit_find_ofs'
src/libostree/bupsplit.h:43: Warning: OSTree: symbol='bupsplit_selftest': Unknown namespace for symbol 'bupsplit_selftest'
src/libostree/bupsplit.h:33: Warning: OSTree: symbol='BUP_BLOBBITS': Unknown namespace for symbol 'BUP_BLOBBITS'
src/libostree/bupsplit.h:34: Warning: OSTree: symbol='BUP_BLOBSIZE': Unknown namespace for symbol 'BUP_BLOBSIZE'
src/libostree/bupsplit.h:35: Warning: OSTree: symbol='BUP_WINDOWBITS': Unknown namespace for symbol 'BUP_WINDOWBITS'
src/libostree/bupsplit.h:36: Warning: OSTree: symbol='BUP_WINDOWSIZE': Unknown namespace for symbol 'BUP_WINDOWSIZE'
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Starting down the path of not using libgsystem. The main win here
will be code sharing between ostree/rpm-ostree as well as going down
the path of not using GFile * for local files.
The previous diff algorithm was file tree based, and only looked
at modified files that lived at the same path.
However, components like the Linux kernel have versioned
subdirectories, e.g. /usr/lib/modules/$kver/.../ext4.ko. We want to
be able to detect these "modified renames" so that we can compute
diffs (rollsum, bsdiff).
This does an rsync-style prepared delta basically. On my test data,
it shaves ~6MB of uncompressed data. Not a huge amount, but I expect
this to be more useful for things like binaries which embed data, etc.
In this approach, we drop a /etc/grub.d/15_ostree file which is a
hybrid of shell/C that picks up bits from the GRUB2 library (e.g. the
block device script generation), and then calls into libostree's
GRUB2 code which knows about the BLS entries.
This is admittedly ugly. There exists another approach for GRUB2 to
learn the BLS specification. However, the spec has a few issues:
https://www.redhat.com/archives/anaconda-devel-list/2014-July/msg00002.html
This approach also gives a bit more control to the admin via the
naming of the 15_ostree symlink; they can easily disable it:
Or reorder the ostree entries ahead of 10_linux:
Also, this approach doesn't require patches for grub2, which is an
issue with the pressure to backport (rpm-)OSTree to EL7.
The libostree core uses SYSCONFDIR now, so we should ensure it's used
consistently. Someone else was seeing SYSCONFDIR not being defined
while compiling with a newer automake version, which may process
CPPFLAGS more precisely.
For Fedora and potentially other distributions which use globally
distributed mirrors, metalink is a popular solution to redirect
clients to a dynamic set of mirrors.
In order to make metalink work though, it needs *one* file which can
be checksummed. (Well, potentially we could explode all refs into the
metalink.xml, but that would be a lot more invasive, and a bit weird
as we'd end up checksumming the checksum file).
This commit adds a new command:
$ ostree summary -u
To regenerate the summary file. Can only be run by one process at a
time.
After that's done, the metalink can be generated based on it, and the
client fetch code will parse and load it.
https://bugzilla.gnome.org/show_bug.cgi?id=729585
This prevents people from creating new directories there and expecting
them to be persisted. The OSTree model has all local state to be in
/etc and /var.
This introduces a compile-time dependency on libe2fsprogs.
We're only doing this for the root directory at the moment.
https://bugzilla.gnome.org/show_bug.cgi?id=728006
For many OS install scenarios, one runs through an installer which may
come with embedded data, and then the OS is configured post-install to
receive updates.
In this model, it'd be nice to avoid the post-install having to rewrite
the /ostree/repo/config file.
Additionally, it feels weird for admins to interact with "/ostree" -
let's make the system feel more like Unix and have our important
configuration in /etc.
https://bugzilla.gnome.org/show_bug.cgi?id=729343
It's better if this is independent from the OstreeSysroot; for
example, a policy is active in a given deployment root at once, not
for a sysroot globally.
We can also collect SELinux-related API in one place.
Unfortunately at the moment there can be only one instance of this
class per process.
This has a very basic level of functionality (deltas can be generated,
and applied offline). There is only some stubbed out pull code to
fetch them via HTTP.
But, better to commit this now and improve it from a known starting
point, rather than have it languish in a branch.
The "ordered hash" code was really just for kernel arguments. And it
turns out it needs to be a multihash (for e.g. multiple console=
arguments).
So turn the OstreeOrderedHash into OstreeKernelArgs, and move the bits
to split key=value and such into there.
Now we're not making this public API yet - the public OstreeSysroot
just takes char **kargs. To facilitate code reuse between ostree/ and
libostree/, make it a noinst libtool library. It'll be duplicated in
the binary and library, but that's OK for now. We can investigate
making OstreeKernelArgs public later.
https://bugzilla.gnome.org/show_bug.cgi?id=721136
Several APIs in libostree were moved there from the commandline code,
and have hardcoded g_print() for progress and notifications. This
isn't useful for people who want to write PackageKit backends, custom
GUIs and the like.
From what I can tell, there isn't really a winning precedent in GLib
for progress notifications.
PackageKit has the model where the source has GObject properties that
change as async ops execute, which isn't bad...but I'd like something
a bit more general where say you can have multiple outstanding async
ops and sensibly track their state.
So, OstreeAsyncProgress is basically a threadsafe property bag with a
change notification signal.
Use this new API to move the GSConsole usage (i.e. g_print()) out from
libostree/ and into ostree/.
Adapted from Google protobufs. For several cases, we want to support
e.g. file sizes up to guint64, but paying the cost of 8 bytes for each
number is too high.
This will be used for static deltas and sizes metadata.
This uses gpgv for verification against DATADIR/ostree/pubring.gpg by
default. The keyring can be overridden by specifying OSTREE_GPG_HOME.
Add a unit test for commit signing with gpg key and verifying on pull;
to implement this we ship a test GPG key generated with no password
for Ostree Tester <test@test.com>.
Change all of the existing tests to disable GPG verification.
Add an optional dependency on gpgme to add GPG signatures into the
detached metadata, with the key "ostree.gpgsigs", as an "aay", an
array of signatures (treated as binary data).
The commit command gains a --gpg-sign=<key-id> argument. Also add an
argument --gpg-homedir to set the GPG homedir where we look for
keyrings.
make distcheck was unhappy for various reasons:
* headers aren't data, so use _HEADERS otherwise compilation fails
* Mark the gir & typelib data as cleanfiles so they aren't left around
after make clean
* Don't nuke the .la file. This breaks make uninstall, leave it up to
distributions to not install .la files if they don't want them.
https://bugzilla.gnome.org/show_bug.cgi?id=705850
