xdg-app was hanging for me with v2015.8, but worked with v2015.7.
I narrowed things down to the GMainLoop/context commit, in which
we started pushing a temporary main context for synchronous
requests internally.
That's never really going to work with libsoup - there needs
to be a single main context which works on the socket. Furthermore,
clients couldn't get progress messages that way.
For *other* internal uses where we added APIs that talk to the remote
repo, we cleanly push a temporary main context.
(Note that I kind of snuck in a change here around the GError handling
in pulls that isn't strictly related but came up in testing)
I noticed xdg-app was looping trying to fetch 1427 refs. We
don't want to do that unless asked to.
(And also, we need to make static delta requests async)
There's no reason to keep them hidden. I have a hard policy that
OSTree should *not* be used to carry secrets. Things like host ssh
private keys should be set up out of band by an OS-external
configuration mechanism such as kickstart, cloud-init, etc.
We also assume that hiding binaries is not very useful as most
attackers would be able to find them on the Internet or (for
subscribed content) acting as a customer.
This fixes a bug with mirroring because we changed to take the
unmodified upstream objects rather than uncompress <-> recompress.
https://bugzilla.gnome.org/show_bug.cgi?id=748959
Now that the computed similar objects are all regular files,
get_unpacked_unlinked_content should never be called on any other
object type. Assert that this is true instead of silently succeeding.
_ostree_delta_compute_similar_objects should not output symlinks.
Previously, a symlink in the "from" commit could be matched to a
real file in the "to" commit, since nothing was filtering symlinks
on the "from" side. This led to failures running the bzdiff
algorithm.
On systems with slow disks, the recursive scanning of directories can
be expensive -- it takes upwards of 2 minutes on our systems. This can
block the main loop for such a long time that it allows the download to
time out...
As such, move all the scanning of objects to a queue, processed from
an idle, to make sure that we don't block the main loop when scanning.
https://bugzilla.gnome.org/show_bug.cgi?id=753336
First of all, what we were doing with having GMainLoop in the internal
APIs is wrong. Synchronous APIs should always create their own main
context and not iterate the caller's. Doing the latter creates
potential for evil reentrancy issues. Sync API should block, async
API is for not blocking.
Now that's out of the way, fix the pull code to do the clean
```
while (termination_condition (state))
g_main_context_iteration (mainctx, TRUE);
```
model for looping. This is a lot easier to understand and ultimately
more reliable than having other code call `g_main_loop_quit()`, as the
loop condition is in exactly one place.
We can also remove the idle source which only fired once.
Note we have to add a hack here to discard the synchronous session and
create a new one which we only use async.
https://bugzilla.gnome.org/show_bug.cgi?id=753336
ostree_repo_prepare_transaction() should always be matched with a call
to either ostree_repo_commit_transaction() or
ostree_repo_abort_transaction().
Since ostree_repo_pull_with_options() does not call
ostree_repo_abort_transaction() on errors, the OstreeRepo instance will
hit an assertion when it's re-used later for another attempt, such as
when the update is driven by an external component through libostree and
network temporarily goes down.
This commit simply always calls ostree_repo_abort_transaction() in the
exit path of ostree_repo_pull_with_options(), since the function is safe
to call even when we're not in a transaction, and that matches e.g. what
ostree-sysroot-cleanup.c does.
The new API permits to query a remote repository summary file and
retrieve the list of available refs.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Returns a GFile for the default system root, which is usually the root
directory unless overridden by the OSTREE_SYSROOT environment variable
(which is mainly intended for testing).
libsoup will cache sessions, so it might be the case that we get a
reused session when pulling from the same repo multiple times in one
process.
In this case we were leaking signal connections, which caused
callbacks into freed memory with bad consequences.
Fix it by tying the signal connection to the object lifetime.
I did a quick audit pass through the pull code. What I focused on the
most is the case where `gpg-verify-summary=true`, and in particular
where `gpg-verify=false` too. This should be a valid and secure
configuration.
The primary change here is to error out very quickly if either
`summary` or `summary.sig` are 404. Previously, we'd only error out
if we were processing deltas.
Expand the existing test case to cover this, plus invalid summary and
invalid sig. (The test case was failing with current git master too).
It allows to specify whether GPG verification for the summary file is
enabled for a specific repository.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This may not be the best idea for general usage, but the only use case
for metalinks currently is fetching a summary file and those are pretty
small. Far more convenient to return the file content in a GBytes.
The state machine's "passthrough_previous" field never got set, so the
machine gets put back into the wrong state after a passthrough phase.
Couple other minor issues around error handling.
The global keyring directory (trusted.gpg.d) is deprecated. Only use it
when a specified remote does NOT have its own keyring, or when verifying
local repository objects.
Note, because mixing in the global keyring directory is now an explicit
choice, OstreeGpgVerifier no longer needs to implement GInitableIface.
We need to check that it's 'ay'. Also reuse the existing validation
function to check it's 32 bytes rather than potentially crashing with
assertion.
Just noticed this during a code review.
I haven't done a full dig through the history, but it seems quite
possible right now we've been relying on inode enumeration
order for generating bootloader configuration.
Most of the time, newer inodes (i.e. later written files) will win.
But that's obviously not reliable.
Fix this by sorting the returned configuration internally.
Alexander Larsson
Giuseppe Scrivano
Colin Walters
John Hiesey
Jasper St. Pierre
Cosimo Cecchi
Matthew Barnes
Jeff Ortel