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The Date field in the Release file is useful to avoid allowing an
attacker to 'downgrade' a user to earlier Release files (and hence to
older states of the archieve with open security bugs). It is also needed
to allow a user to define min/max values for the validation of a Release
file (with or without the Release file providing a Valid-Until field).
APT wasn't formally requiring this field before through and (agrueable
not binding and still incomplete) online documentation declares it
optional (until now), so we downgrade the error to a warning for now to
give repository creators a bit more time to adapt – the bigger ones
should have a Date field for years already, so the effected group should
be small in any case.
It should be noted that earlier apt versions had this as an error
already, but only showed it if a Valid-Until field was present (or the
user tried to used the configuration items for min/max valid-until).
Closes: 809329
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In 321213f0dcdcdaab04e01663e7a047b261400c9c Andreas Cadhalpun corrected
the incorrect overriding of earlier better-fitting results with later
(semi-)matches – but that broke the case in which packages are in multiple
releases in the same version (and the user has both releases configured).
Closes: 812497
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Some (older) versions of bash seem to be allergic to a method named
"aptautotest_grep_^apt" (note the caret). Unlikely that we are going to
write autotests for such commands so we could just skip those, but lets
instead just use "normal" characters in the names and strip the rest as
we already did with the (arguable more common) '-'.
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This way it works more similar to the compressor binaries, which we
can relief in this way from their job in the test framework avoiding the
need of adding e.g. liblz4-tool to the test dependencies.
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Downloading and storing are two different operations were different
compression types can be preferred. For downloading we provide the
choice via Acquire::CompressionTypes::Order as there is a choice to
be made between download size and speed – and limited by whats available
in the repository.
Storage on the other hand has all compressions currently supported by
apt available and to reduce runtime of tools accessing these files the
compression type should be a low-cost format in terms of decompression.
apt traditionally stores its indexes uncompressed on disk, but has
options to keep them compressed. Now that apt downloads additional files
we also deal with files which simply can't be stored uncompressed as
they are just too big (like Contents for apt-file). Traditionally they
are downloaded in a low-cost format (gz) as repositories do not provide
other formats, but there might be even lower-cost formats and for
download we could introduce higher-cost in the repositories.
Downloading an entire index potentially requires recompression to
another format, so an update takes potentially longer – but big files
are usually updated via pdiffs which has to de- and re-compress anyhow
and does it on the fly anyhow, so there is no extra time needed and in
general it seems to be benefitial to invest the time in update to save
time later on file access.
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Less hardcoding should help while introducing new compressors.
Git-Dch: Ignore
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The output changes slightly between different versions, which we already
dealt with in the main testcase for apt-key, but there are two more
which do not test both versions explicitly and so still had gpg1 output
to check against as this is the default at the moment.
Git-Dch: Ignore
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apt-key creates internally a script (since ~1.1) which it will call to
avoid dealing with an array of different options in the code itself, but
while writing this script it wraps the values in "", which will cause
the shell to evaluate its content upon execution.
To make 'use' of this either set a absolute gpg command or TMPDIR to
something as interesting as:
"/tmp/This is fü\$\$ing cràzy, \$(man man | head -n1 | cut -d' ' -f1)\$!"
If such paths can be encountered in reality is a different question…
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This doesn't allow all tests to run cleanly, but it at least allows to
write tests which could run successfully in such environments.
Git-Dch: Ignore
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Use asprintf() so we have easy error detection and do not depend
on PATH_MAX.
Do not add another separator to the generated path, in both cases
the path inside the chroot is guaranteed to have a leading /
already.
Also pass -Wall to gcc.
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This caused test-bug-717891-abolute-uris-for-proxies to fail
Gbp-Dch: ignore
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This breaks a lot of test cases
Gbp-Dch: ignore
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The allocated buffer was one byte too small. Allocate a buffer
of PATH_MAX instead and use snprintf(), as suggested by Martin
Pitt.
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Trying to clean up directories which do not exist seems rather silly if
you think about it, so let apt think about it and stop it.
Depends a bit on the caller if this is fixing anything for them as they
might try to acquire a lock or doing other clever things as apt does.
Closes: 807477
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If we can't work with the hashes we parsed from the Release file we
display now an error message if the Release file includes only weak
hashes instead of downloading the indexes and failing to verify them
with "Hash Sum mismatch" even through the hashes didn't mismatch (they
were just weak).
If for some (unlikely) reason we have got weak hashes only for
individual targets we will show a warning to this effect (again, befor
downloading and failing the index itself).
Closes: 806459
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which is a debian specific tool packaged in debianutils (essential)
while command is a shell builtin defined by POSIX.
Closes: 807144
Thanks: Mingye Wang for the suggestion.
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Git-Dch: Ignore
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Dropping privileges is an involved process for code and system alike so
ideally we want to verify that all the work wasn't in vain. Stuff
designed to sidestep the usual privilege checks like fakeroot (and its
many alternatives) have their problem with this through, partly through
missing wrapping (#806521), partly as e.g. regaining root from an
unprivileged user is in their design. This commit therefore disables
most of these checks by default so that apt runs fine again in a
fakeroot environment.
Closes: 806475
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debci seems to have a cleaner environment now and even if not we could
never guess nogroup, so figure it out properly via 'id'.
Git-Dch: Ignore
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In ce1f3a2c we started warning about failing unlinking, which we
consistently do for directories. That isn't a problem as directories
usually aren't in the places we do want to clean up – with the potential
exeception of "lost+found", so lets ignore it like we ignore our own
partial/ subdirectory.
Closes: 805424
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Git-Dch: Ignore
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space-gapping: '-o option= value'
That is a very old feature (straight from 1998), but it is super
surprising if you try setting empty values and instead get error
messages or a non-empty value as the next parameter is treated as the
value – which could have been empty, so if for some reason you need a
compatible way of setting an empty value try: '-o option="" ""'.
I can only guess that the idea was to support '-o option value', but we
survived 17 years without it, we will do fine in the future I guess.
Similar is the case for '-t= testing' even through '-t testing' existed
before and the code even tried to detect mistakes like '-t= -b' … all
gone now.
Technically that is as its removing a feature replacing it with another
a major interface break. In practice I really hope for my and their
sanity that nobody was using this; but if for some reaon you do: Remove
the space and be done.
I found the patch and the bugreport actually only after the fact, but
its reassuring that others are puzzled by this as well and hence a
thanks is in perfect order here as the patch is practical identical
[expect that this one here adds tests and other bonus items].
Thanks: Daniel Hartwig for initial patch.
Closes: 693092
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Notices are just hints, but if they are printed in tests, they should be
expected and if not the test should fail. No current test has this
problem, so that is just potential future proving.
Git-Dch: Ignore
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Allows users who know what they are getting themselves into with this
trick to e.g. disable privilege dropping for e.g. file:// until they can
fix up the permissions on those repositories. It helps also the test
framework and people with a similar setup (= me) to run in less modified
environments.
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This flags is generally handy to avoid having to deal with ipv6 results on an
ipv4-only system, but it prevents e.g. the testcases from working if the
testsystem has no configured address at the moment (expect loopback), so
allow it to be sidestepped and let the testcases sidestep it.
Git-Dch: Ignore
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Based on a discussion with Niels Thykier who asked for Contents-all this
implements apt trying for all architecture dependent files to get a file
for the architecture all, which is treated internally now as an official
architecture which is always around (like native). This way arch:all
data can be shared instead of duplicated for each architecture requiring
the user to download the same information again and again.
There is one problem however: In Debian there is already a binary-all/
Packages file, but the binary-any files still include arch:all packages,
so that downloading this file now would be a waste of time, bandwidth
and diskspace. We therefore need a way to decide if it makes sense to
download the all file for Packages in Debian or not. The obvious answer
would be a special flag in the Release file indicating this, which would
need to default to 'no' and every reasonable repository would override
it to 'yes' in a few years time, but the flag would be there "forever".
Looking closer at a Release file we see the field "Architectures", which
doesn't include 'all' at the moment. With the idea outlined above that
'all' is a "proper" architecture now, we interpret this field as being
authoritative in declaring which architectures are supported by this
repository. If it says 'all', apt will try to get all, if not it will be
skipped. This gives us another interesting feature: If I configure a
source to download armel and mips, but it declares it supports only
armel apt will now print a notice saying as much. Previously this was a
very cryptic failure. If on the other hand the repository supports mips,
too, but for some reason doesn't ship mips packages at the moment, this
'missing' file is silently ignored (= that is the same as the repository
including an empty file).
The Architectures field isn't mandatory through, so if it isn't there,
we assume that every architecture is supported by this repository, which
skips the arch:all if not listed in the release file.
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apt is an interactive command and the reasons we haven't this option set
for everything is mostly in keeping compatibility for a little while
longer to allow scripts to be changed if need be.
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The manpage is also slightly updated to work better as a central hub to
push people from all angles into the right directions without writting a
book disguised as an error message.
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Insecure (aka unsigned) repositories are bad, period. We want to get
right of them finally and as a first step we are printing scary
warnings. This is already done, this commit just changes the messages to
be more consistent and prevents them from being displayed if
authenticity is guaranteed some other way (as indicated with
trusted=yes).
The idea is to first print the pure fact like "repository isn't signed"
as a warning (and later as an error), while giving an explaination in a
immediately following notice (which is displayed only in quiet level 0:
so in interactive use, not in scripts and alike).
Closes: 796549
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Commit 653ef26c70dc9c0e2cbfdd4e79117876bb63e87d broke the camels back in
sofar that everything works in terms of our internal use of copy:/, but
external use is completely destroyed. This is kinda the reverse of what
happened in "parallel" in the sid branch, where external use was mostly
fine, internal and external exploded on the GzipIndexes option.
We fix this now by rewriting our internal use by letting copy:/ only do
what the name suggests it does: Copy files and not uncompress them
on-the-fly. Then we teach copy and the uncompressors how to deal with
/dev/null and use it as destination file in case we don't want to store
the uncompressed files on disk.
Closes: 799158
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Now that tests can be run in parallel, lets actually do it… The mode has
some downsides like not collecting the failed tests, but it can be a lot
faster than a sequential run and is therefore a good alternative in
testing those "this shouldn't break anything" changes (which tend to
break everything if untested).
Git-Dch: Ignore
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This allows running tests in parallel.
Git-Dch: Ignore
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Not all tests work yet, most notable the cdrom tests, but those require
changes in libapt itself to have a proper fix and what we have fixed so
far is good enough progress for now.
Git-Dch: Ignore
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This is mostly a small speedup for the testcases, but it is also handy
to document which tests actually deal with a specific hash compared to
those which 'just' need some hash which can be important while adding
new hashes.
Git-Dch: Ignore
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And of course, testing obscure things ends up showing obscure 'bugs' or
better shortcomings/inconsitencies, so lets fix them with the tests.
Git-Dch: Ignore
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This is basically a rewrite of the script with the general idea of
finding the Debian version of the installed kernels – as multiple
flavours will have the same Debian version – select the two newest of
them and translate them back to versions found in package names.
This way we avoid e.g. kernel and kernel-rt to use up the protected
slots even through they are basically the same kernel (just a different
flavour) so it is likely that if kernel doesn't work for some reason,
kernel-rt will not either.
This also deals with foreign kernel packages, kernels on hold and partly
installed kernels (in case multiple kernels are installed in the same
apt run) in a hopefully sensible way.
Closes: 787827
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Git-Dch: Ignore
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Git-Dch: Ignore
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Git-Dch: Ignore
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Git-Dch: Ignore
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The md5sum hash is broken since some time and we should no longer
consider it a usable hash. Also update the tests to reflect this.
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testsuccess checks the return code, but it does also some autotests
based on the command like grepping for dpkg warnings in a apt-get
install call – but if this finds something it is just showing the grep
command. With this change it will additionally show the first msgtest
which in this case will detail the actual apt-get install call.
Git-Dch: Ignore
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Not-quiet output is very verbose and with our growing array of tests
generates many many lines which e.g. kills the log display in travis-ci
and obscures failures and uncatched output in a wall of details.
The -q mode fixed this by callapsing passed tests to a single P and now
with some rework we can even get failures properly displayed with the
message from msgtest.
Git-Dch: Ignore
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While Target{,-Add,-Remove} is available for configuring IndexTargets
already, allow Targets to be mentioned explicitely as yes/no options as
well, so that the Target 'Contents' can be disabled via 'Contents: no'
as well as 'Target-Remove: Contents'.
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Reported-By: codespell
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Thanks: Steve Slangasek for the suggestion
Closes: 695633
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This makes travis-ci able to run our tests again.
Sometimes.
If it doesn't spontaneously fails with internal gcc errors…
Git-Dch: Ignore
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Having the handling in MarkInstall means that it just effects
installation of the metapackage, but if the dependencies change the new
dependencies aren't protected (and the old dependencies are still
protected for no 'reason'). Having it in MarkDelete means that if a
metapackage is sheduled for removal all its currently installed
dependencies are marked as manual, which helps against both as in this
case there is no new/old and additionally if a user decides the
installation of a metapackage was wrong he can just remove it
explicitely avoid the manual marking entirely.
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In 50ef3344c3afaaf9943142906b2f976a0337d264 (and similar for other
branches), while 'fixing' the edgecase of a package being in multiple
sections (e.g. moved from libs to oldlibs in newer releases) I
accidently broke the feature itself completely by operating on the
package itself and no longer on its dependencies…
The behaviour isn't ideal in multiple ways, which we are hopefully able
to fix with new ideas as mentioned in the buglog, but until then the
functionality of this "hack" should be restored.
Reported-By: Raphaël Hertzog <hertzog@debian.org>
Tested-By: Adam Conrad <adconrad@ubuntu.com>
Closes: 793360
LP: 1479207
Thanks: Raphaël Hertzog and Adam Conrad for detailed reports and initial patches
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