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apt-key has inconsistent behaviour if it can't read a keyring file:
Commands like 'list' skipped silently over such keyrings while 'verify'
failed hard resulting in apt to report cconfusing gpg errors (#834973).
As a first step we teach apt-key to be more consistent here skipping in
all commands over unreadable keyrings, but issuing a warning in the
process, which is as usual for apt commands displayed at the end of the
run.
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In most cases apt was already skipping the (re)setting of packages as
to be removed/purged if dpkg had told us that it already did, but we
haven't dealt with it in the most obvious of the cases: Selections set
for packages we touched in this operation which either restores
selections even dpkg would have overridden or e.g. tries to restore a
purge selection for a package which was just purged – does not happen
with apt itself as it isn't using selections in this way, but higher
frontends like aptitude do.
The result in the later case is a warning printed by dpkg that we try to
set selections for an unknown package, which is harmless per se, but can
be confusing for users and we really shouldn't cause warnings in dpkg if
we can help it.
Reported-By: Guillem Jover on IRC
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The bugreport shows a segfault caused by the code not doing the correct
magical dance to remove an item from inside a queue in all cases. We
could try hard to fix this, but it is actually better and also easier to
perform these checks (which cause instant failure) earlier so that they
haven't entered queue(s) yet, which in return makes cleanup trivial.
The result is that we actually end up failing "too early" as if we
wouldn't be careful download errors would be logged before that process
was even started. Not a problem for the acquire system, but likely to
confuse users and programs alike if they see the download process
producing errors before apt was technically allowed to do an acquire
(it didn't, so no violation, but it looks like it to the untrained eye).
Closes: 835195
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Commit 7ec343309b7bc6001b465c870609b3c570026149 got us most of the way,
but the last mile was botched by having the pending calls in the wrong
order as this way we potentially 'force' dpkg to remove/purge a package
it doesn't want to as another package still depends on it and the
replacement isn't fully installed yet.
So what we do now is a configure before remove and purge (all with
--no-triggers) and finishing off with another configure pending call to
take care of the triggers.
Note that in the bugreport example our current planner is forcing dpkg
to remove the package earlier via --force-depends which we could do for
the pending calls as well and could be used as a workaround, but we want
to do less forcing eventually.
Closes: 835094
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The implementation of the generic config fallback did the fallback in
the wrong order so that the least specific option wasn't the last value
picked but in fact the first one… doh!
So in the bugreports case http -> https -> http::<hostname> ->
https::<hostname> while it should have been the reverse as before.
Regression-In: 30060442025824c491f58887ca7369f3c572fa57
Closes: 834642
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We support "./foobar.deb" as a way to install a deb file directly.
Recently .changes files were added. This highlights a problem as you
can't add the changes file without also trying to install all of them.
Now, it could also be handy to add entire Packages/Sources files to
perhaps get a bunch of packages in without installing them all
implicitly.
This commit introduces --with-source which allows to add *.deb, *.changes,
*.dsc, source-dirs, Packages & Sources files (the later can also be
compressed) without also installing them.
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Fingerprints tend to be displayed in space-separated octet pairs so be
nice and allow delete to remove a key based on such a string rather than
requiring that the user is deleting all the spaces manually.
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We need to support partial upgrades anyhow, so we have to deal with the
different versions and your tests try to ensure that we do, so we
shouldn't make any explicit higher requirements.
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gpg upstream committed "gpgv: Tweak default options for extra
security." applied on the 1.x and 2.x branches:
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=e32c575e0f3704e7563048eea6d26844bdfc494b
This commit includes "[…], but we should validate the key by its self
signature for primary key, and back signature for subkey."
Our testkeys are old and do not really considered best practices in the
last years, so their most recent self-signature is SHA1-only which with
this gpg commit and our testcases defaulting to --weak-digest sha1 are
refused.
So what we do here is just applying some of the recent best practices on
top of our testcase keys.
Gbp-Dch: Ignore
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Helps interactive gdb calls find the source code.
Gbp-Dch: Ignore
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In af81ab9030229b4ce6cbe28f0f0831d4896fda01 by-hash got implemented as a
special compression type for our usual index files like Packages.
Missing in this scheme was the special .diff/Index index file containing
the info about individual patches for this index file. Deriving from the
index file class directly we inherent the compression handling
infrastructure and in this way also by-hash nearly for free.
Closes: #824926
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If 9b8034a9fd40b4d05075fda719e61f6eb4c45678 serves the Release files
from a partial mirror we will end up getting 404 for some of the
indexes. Instead of giving up, we will instead ignore our same
redirection mirror constrain and ask the redirection service as a
potential hashsum mismatch is better than keeping the certain 404 error.
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If the server told us in a previous request that it isn't supporting
Ranges with bytes via an Accept-Ranges header missing bytes, we don't
try to formulate requests using Ranges.
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It seems completely pointless from a server-POV to sent empty header
fields, so most of them don't do it (simply proven by this limitation
existing since day one) – but it is technically allowed by the RFC as
the surounding whitespaces are optional and Github seems to like sending
"X-Geo-Block-List:\r\n" since recently (bug reports in other http
clients indicate July) at least sometimes as the reporter claims to have
seen it on https only even through it can happen with both.
Closes: 834048
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Git-Dch: Ignore
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We use clock() as a very cheap way of getting a "random" value, but the
manpage warns that this could return -1, so we should be dealing with
this. Additionally, e.g. on hurd-i386 the value increases only slowly –
to slow for our fast running tests for randomness hence producing the
same range in both samples, so we introduce a simple busy-wait loop (as
clock is counting processor time used by the program) in the test which
delays the second sample just enough making our randomness a bit more
predictable.
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Comparing floating numbers is always fun and in this instance a 9 < 9.0
is "somehow" true on hurd-i386 letting the tests fail by reporting that
too much progress achieved. A bit mysterious, but with some rework we
can use code which avoids dealing with the floats in this way entirely
and make our testcases happy.
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With cmake using BUILDDIRECTORY at this place is not only as wrong as it
was before, but it might not even work always copying the system
provided one which might or might not be current and hence fails tests
needing it to be current like ./test-apt-move-and-forget-manual-sections
We don't want to always use the one from the source directory through
either like in autopkgtests.
Gbp-Dch: Ignore
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Doing a direct connect to an .onion address (if you don't happen to use
it as a local domain, which you shouldn't) is bound to fail and does
leak the information that you do use Tor and which hidden service you
wanted to connect to to a DNS server. Worse, if the DNS is poisoned and
actually resolves tricking a user into believing the setup would work
correctly…
This does block also the usage of wrappers like torsocks with apt, but
with native support available and advertised in the error message this
shouldn't really be an issue.
Inspired-by: https://bugzilla.mozilla.org/show_bug.cgi?id=1228457
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With b4450f1dd6bca537e60406b2383ab154a3e1485f we dropped what we
calculated here later on and now that we don't need it in the meantime
either we can just skip the busy work by default and expect dpkg to do
the right thing dropping also our little "last explicit configures"
removal trick introduced in b4450f1dd6bca537e60406b2383ab154a3e1485f.
This enables the last of a bunch of previously experimental options,
some of them existing still, but are very special and hence not really
worth documenting anymore (especially as it would need to be rewritten
now entirely) which is why the documentation is nearly completely
dropped.
The order of configuration stanzas in the simulation code changes
slightly as it isn't concerning itself with finding the 'right' order,
but any order is valid anyhow as long as the entire set happens in the
same call.
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The user has to approve the removal of a crossgraded package as it might
be needed to remove it (temporarily) in the process, but in most cases
we can happily avoid it and let dpkg unpack over it skipping the
remove. This has some effects on progress reporting and how deal with
selections through which makes this a tiny bit complicated.
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If the URI had no password the username was ignored
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To prevent accidents like adding http-sources while using tor+http it
can make sense to allow disabling methods. It might even make sense to
allow "redirections" and adding "symlinked" methods via configuration.
This could e.g. allow using different options for certain sources by
adding and configuring a "virtual" new method which picks up the config
based on the name it was called with like e.g. http does if called as
tor+http.
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Socks support is a requested feature in sofar that the internet is
actually believing Acquire::socks::Proxy would exist. It doesn't and
this commit isn't adding it as that isn't how our configuration works,
but it allows Acquire::http::Proxy="socks5h://…". The HTTPS method was
changed already to support socks proxies (all versions) via curl. This
commit implements only SOCKS5 (RFC1928) with no auth or pass&user auth
(RFC1929), but not GSSAPI which is required by the RFC. The 'h' in the
protocol name further indicates that DNS resolution is delegated to the
socks proxy rather than performed locally.
The implementation works and was tested with Tor as socks proxy for
which implementing socks5h only can actually be considered a feature.
Closes: 744934
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The https method implemented for a long while now a hardcoded fallback
to the same options in http, which, while it works, is rather inflexible
if we want to allow the methods to use another name to change their
behavior slightly, like apt-transport-tor does to https – most of the
diff being s#https#tor#g which then fails to do the full circle
fallthrough tor -> https -> http for https sources. With this config
infrastructure this could be implemented now.
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cURL which backs our https implementation can handle redirects on its
own, but by dealing with them on our own we gain finer control over which
redirections will be performed (we don't like https → http) and by whom
so that redirections to other hosts correctly spawn a new https method
dealing with these instead of letting the current one deal with it.
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Having the detection handled in specific (http) workers means that a
redirection loop over different hostnames isn't detected. Its also not a
good idea have this implement in each method independently even if it
would work
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Closes: #623443
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If we want a package to be purged from the system tell dpkg in the
ordering (if it has to touch it explicitly) to remove it and cover the
purging of the config files at the end with a --purge --pending call.
That should help packages move conffiles around between packages
correctly even if the user is purging packages directly in big actions
like dist-upgrades involving many packages.
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Telling dpkg early on that we are going to remove these packages later
helps it with auto-deconfiguration decisions and its another area where
a planner can ignore the nitty gritty details and let dpkg decide the
course of action if there are no special requirements.
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dpkg decides certain things on its own based on selections and
especially if we want to call --pending on purge/remove actions, we need
to ensure a clean slate or otherwise we surprise the user by removing
packages we weren't allowed to remove by the user in this run (the
selection might be an overarching plan for the not-yet "future").
Ideally dpkg would have some kind of temporal selection interface for
this case, but it hasn't, so we make it temporal with the risk of
loosing state if we don't manage to restore them.
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Having long commandlines split into two is a huge problem if it happens
and additionally if we want to introduce planners which perform less
micromanagment its a good idea to leave the details for dpkg to decide.
In practice this doesn't work yet unconditionally as a bug is hiding in
the ordering code of dpkg, but it works if apt imposes its ordering so
this commit allows for now at least to solve the first problem.
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APT (usually) knows which package is essential or not, so we can avoid
passing this force flag to dpkg unconditionally if the user hasn't
chosen a non-default essential handling obscuring the information.
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This breaks -j and does all sort of other weird stuff I did not
notice in the previous (non-parallel) runs.
Gbp-Dch: ignore
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Look at the project root, and all directories directly below it and
pick the directory with the newest CMakeCache.txt file.
Gbp-Dch: ignore
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Bye, bye, old friend.
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Add support for our GTest based unit tests. By default, CMake will
look in /usr/src/gtest for the external GTest project, but this can
be overriden by defining GTEST_ROOT when invoking cmake.
Gbp-Dch: ignore
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This early support seems a bit hacky, but it's a hard switch: The
integration tests do not understand the old build system anymore
afterwards. I don't really like that.
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This fixes a test failures in the cmake branch which contains
sub directories in the methods output dir.
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Reported-By: cppcheck
Gbp-Dch: Ignore
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If another file in the transaction fails and hence dooms the transaction
we can end in a situation in which a -patched file (= rred writes the
result of the patching to it) remains in the partial/ directory.
The next apt call will perform the rred patching again and write its
result again to the -patched file, but instead of starting with an empty
file as intended it will override the content previously in the file
which has the same result if the new content happens to be longer than
the old content, but if it isn't parts of the old content remain in the
file which will pass verification as the new content written to it
matches the hashes and if the entire transaction passes the file will be
moved the lists/ directory where it might or might not trigger errors
depending on if the old content which remained forms a valid file
together with the new content.
This has no real security implications as no untrusted data is involved:
The old content consists of a base file which passed verification and a
bunch of patches which all passed multiple verifications as well, so the
old content isn't controllable by an attacker and the new one isn't
either (as the new content alone passes verification). So the best an
attacker can do is letting the user run into the same issue as in the
report.
Closes: #831762
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Hardcoding /var/crash means we can't test it properly and it isn't
really our style.
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Gbp-Dch: Ignore
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If the sources file we want to edit doesn't exist yet GetLock will
create it with 640, which for a generic lockfile might be okay, but as
this is a sources file more relaxed permissions are in order – and
actually required as it wont be readable for unprivileged users causing
warnings/errors in apt calls.
Reported-By: J. Theede (musca) on IRC
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The tests changes the sources.list and the modification time of this
file is considered while figuring out if the cache can be good. Usually
this isn't an issue, but in that case we have the cache generation
produce warnings which appear twice in this case.
Gbp-Dch: Ignore
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The existing cleanup was happening only for packages which had a status
change (install -> uninstalled) which is the most frequent but no the
only case – you can e.g. set autobits explicitly with apt-mark.
This would leave stanzas in the states file declaring a package to be
manually installed – which is the default value for a package not listed
at all, so we can just as well drop it from the file.
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Otherwise calls like "apt -q install" end up calling "aptautotest_apt_q"
instead of "aptautotest_apt_install"
Gbp-Dch: Ignore
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We support installing ./foo.deb (and ./foo.dsc for source) for a while
now, but it can be a bit clunky to work with those directly if you e.g.
build packages locally in a 'central' build-area.
The changes files also include hashsums and can be signed, so this can
also be considered an enhancement in terms of security as a user "just"
has to verify the signature on the changes file then rather than
checking all deb files individually in these manual installation
procedures.
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