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As long as we are running dpkg, keep an inhibitor that
blocks us from shutting down.
LP: #1820886
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Verifying the content of Release.gpg made us fail on binary signatures
which were never officially supported (apt-secure manpage only documents
only the generation of ASCII armored), but silently accepted by gpgv as
we passed it on unchecked before.
The binary format is complex and is itself split into old and new
formats so adding support for this would not only add lots of code but
also a good opportunity for bugs and dubious benefit.
Reporting this issue explicitly should help repository creators figure
out the problem faster than the default NODATA message hinting at
captive portals.
Given that the binary format has no file magic or any other clear and
simple indication that this is a detached signature we guess based on
the first two bits only – and by that only supporting the "old" binary
format which seems to be the only one generated by gnupg in this case.
References: e2965b0b6bdd68ffcad0e06d11755412a7e16e50
Closes: #921685
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This slightly improves performance, as std::to_string() (as in gcc's
libstdc++) avoids a heap allocation. This is surprisingly performance
critical code, so we might want to improve things further in 1.9
by manually calculating the string - that would also get rid of issues
with locales changing string formatting, if any.
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This is safe here, as the code ensures that the file is flushed
before it is being used. The next series should probably make
GetTempFile() buffer writes by default.
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A pin of -32768 overrides any other, disables repo
See merge request apt-team/apt!40
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This new field allows a repository to declare that access to
packages requires authorization. The current implementation will
set the pin to -32768 if no authorization has been provided in
the auth.conf(.d) files.
This implementation is suboptimal in two aspects:
(1) A repository should behave more like NotSource repositories
(2) We only have the host name for the repository, we cannot use
paths yet.
- We can fix those after an ABI break.
The code also adds a check to acquire-item.cc to not use the
specified repository as a download source, mimicking NotSource.
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It is dropped in the merged code, but the extraction of the clearsigned
message code was the only one who had it previously, so the short-desc
explains the change from a before-after merge of the branch PoV.
It would make sense to enable it, but as we aren't in a time critical
paths here we can delay this for after buster to avoid problems.
References: 73e3459689c05cd62f15c29d2faddb0fc215ef5e
Suggested-By: Julian Andres Klode
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Suggested-By: Julian Andres Klode
Gbp-Dch: Ignore
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No effective change in behaviour, just simplifying and reusing code.
Suggested-By: Julian Andres Klode
Gbp-Dch: Ignore
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No change in the logic itself, just dropping "== true", replacing "==
false" with not and moving lines around to make branches more obvious.
Suggested-By: Julian Andres Klode
Gbp-Dch: Ignore
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We support dash-encoding even if we don't really work with files who
would need it as implementations are free to encode every line, but
otherwise a line starting with a dash must either be a header we parse
explicitly or the file is refused. This is against the RFC which says
clients should warn on such files, but given that we aren't expecting
any files with dash-started lines to begin with this looks a lot like a
we should not continue to touch the file as it smells like an attempt to
confuse different parsers by "hiding" headers in-between others.
The other slightly more reasonable explanation would be an armor header
key starting with a dash, but no existing key does that and it seems
unlikely that this could ever happen. Also, it is recommended that
clients warn about unknown keys, so new appearance is limited.
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This is C++, so we can use a bit more abstraction to let the code
look a tiny bit nicer hopefully improving readability a bit.
Gbp-Dch: Ignore
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RFC 4880 section 7.1 "Dash-Escaped Text" at the end defines that only
space and tab are allowed, so we should remove only these even if due to
use complaining (or now failing) you can't really make use of it.
Note that strrstrip was removing '\r\n\t ', not other whitespaces like
\v or \f and another big reason to do it explicitly here now is to avoid
that a future change adding those could have unintended consequences.
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Having many rather similar implementations especially if one is exported
while others aren't (and the rest of it not factored out at all) seems
suboptimal.
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The exploit for CVE-2019-3462 uses the fact that a Release.gpg file can
contain additional content beside the expected detached signature(s).
We were passing the file unchecked to gpgv which ignores these extras
without complains, so we reuse the same line-reading implementation we
use for InRelease splitting to detect if a Release.gpg file contains
unexpected data and fail in this case given that we in the previous
commit we established that we fail in the similar InRelease case now.
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The warnings were introduced 2 years ago without any reports from the
wild about them actually appearing for anyone, so now seems to be an as
good time as any to switch them to errors.
This allows rewritting the code by failing earlier instead of trying to
keep going which makes the diff a bit hard to follow but should help
simplifying reasoning about it.
References: 6376dfb8dfb99b9d182c2fb13aa34b2ac89805e3
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In C++17 `register` keyword was removed. Current gcc 8.1.0 produces
following warning if `-std=c++17` flag is used:
warning: ISO C++17 does not allow 'register' storage class specifier
[-Wregister]
GCC almost completely ignores `register` keyword, with rare exception of
`-O0` when additional copy from/to stack may be generated.
For simplicity of the codebase it is better to just remove this
problematic keyword where it is not strictly required.
See: http://en.cppreference.com/w/cpp/language/storage_duration
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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FileFd could be copied using the default copy constructor,
which does not work, and then causes code to crash.
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Tagnames in configuration can include spaces (and other nasties) e.g. in
repository-specific configuration options due to Origin/Label
potentially containing a space. The configuration file format supports
parsing quoted as well as encoded spaces, but the output generated by
apt-config and other places which might be feedback into apt via
parsing (e.g. before calling apt-key in our gpgv method) do not quote
and hence produce invalid configuration files.
Changing the default to be an encoded tagname ensures that the output of
dump can be used as a config file, but other users might not expect
this so that is technically a backward-breaking change.
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No user visible change expect for some years old changelog entries,
so we don't really need to add a new one for this…
Reported-By: codespell
Gbp-Dch: Ignore
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Support subkeys and multiple keyrings in Signed-By options
See merge request apt-team/apt!27
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Some post-invoke scripts install packages, which fails because
the environment variable is not set. This sets the variable for
all three kinds of scripts {pre,post-}invoke and pre-install-pkgs,
but we will only allow post-invoke at a later time.
Gbp-Dch: full
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A user can specify multiple fingerprints for a while now, so its seems
counter-intuitive to support only one keyring, especially if this isn't
really checked or enforced and while unlikely mixtures of both should
work properly, too, instead of a kinda random behaviour.
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Clock changes while apt is running can result in strange reports
confusing (and amusing) users. Sadly, to keep the ABI for now the
code is a bit more ugly than it would need to be.
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IP addresses are by definition not a domain so in the best case the
requests will just fail; we can do better than that on our own.
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Prompted-by: Jakub Wilk <jwilk@debian.org>
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Reported-By: codespell & spellintian
Gbp-Dch: Ignore
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Reported-By: gcc -Wdouble-promotion
Gbp-Dch: Ignore
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This implements support for multi frame files while keeping
error checking for unexpected EOF working correctly. Files
with multiple frames are generated by pzstd, for example.
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This is a simplified variant of the code for xz, adapted to support
multiple digit integers.
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zstd is a compression algorithm developed by facebook. At level 19,
it is about 6% worse in size than xz -6, but decompression is multiple
times faster, saving about 40% install time, especially with eatmydata
on cloud instances.
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