Michael Vogt [Wed, 24 Sep 2014 14:22:05 +0000 (16:22 +0200)]
Drop Privileges to "Debian-apt" in most acquire methods
Add a new "Debian-apt" user that owns the /var/lib/apt/lists
and /var/cache/apt/archive directories. The methods
http, https, ftp, gpgv, gzip switch to this user when they
start.
Thanks to Julian and "ioerror" and tors "switch_id()" code.
Michael Vogt [Sun, 21 Sep 2014 19:40:10 +0000 (21:40 +0200)]
Ensure that iTFRewritePackageOrder is "MD5sum" to match apt-ftparchive
The iTFRewritePackageOrder is used in indexcopy to copy and normalize
cdrom Packages files. This change will ensure that there is no
"normalization" that changes MD5sum -> MD5Sum which alters the hash
of the Packages file on disk (oh the irony).
Michael Vogt [Sun, 21 Sep 2014 19:23:04 +0000 (21:23 +0200)]
Fix regression for cdrom: sources from latest security update
Skip a reverify for cdrom: sources. The reverify step is actually
harmful here because the apt-cdrom add code uses the indexcopy.cc
which will "normalize" the Packages file from the cdrom when it
writes it to the local disk. This leads to changing the "MD5sum"
field (notice the lower case "s") on the cdrom Packages file to
a "MD5Sum" field on the local file in /var/lib/apt/lists. Which
of course alters the hash and makes apt fail to reverify the file.
Michael Vogt [Fri, 19 Sep 2014 14:41:55 +0000 (16:41 +0200)]
Fix regression when copy: is used for a relative path
When we do a ReverifyAfterIMS() we use the copy: method to
verify the hashes again. If the user uses -o Dir=./something/relative
this fails because we use the URI class in copy.cc that strips
away the leading relative part. By not using URI this is fixed.
Michael Vogt [Wed, 17 Sep 2014 12:57:05 +0000 (14:57 +0200)]
Fix regression for file:/// uris from CVE-2014-0487
Do not run ReverifyAfterIMS() for local file URIs as this will
causes apt to mess around in the file:/// uri space. This is
wrong in itself, but it will also cause a incorrect verification
failure when the archive and the lists directory are on different
partitions as rename().
Michael Vogt [Tue, 16 Sep 2014 18:23:43 +0000 (20:23 +0200)]
SECURITY UPDATE for CVE-2014-{0488,0487,0489}
incorrect invalidating of unauthenticated data (CVE-2014-0488)
incorect verification of 304 reply (CVE-2014-0487)
incorrect verification of Acquire::Gzip indexes (CVE-2014-0489)
Builds, runs and generates everything needed to have a coverage report
at the end for apt. The report isn't perfect as most childs apt forks do
not have a regular exit and so data is never written for them, which
results in e.g. most methods to have zero coverage reported.
Most pagers are nice and default to running non-interactively if they
aren't connected to a terminal and we relied on that. On ci.debian.net
the configured pager is printing a header out of nowhere though, so if
we are printing to a non-terminal we call "cat" instead.
In the rework we also "remove" the dependency on sensible-utils in sofar
as we call some alternatives if calling the utils fail.
This seems to be the last problem preventing a "PASS" status on
ci.debian.net, so we close the associated bugreport.
rework PTY magic to fix stair-stepping on kfreebsd
A pty slave we have got from openpty can only be used for one dpkg
child, if we give it to a second child on kfreebsd setting TIOCSCTTY
fails causing the output to be stair-stepped from now on.
By switching the code to creating a master and opening a new slave in
the child for each child we can fix this glitch, so that at least the
master remains stable.
APT treats upgrades like installs and dpkg is very similar in this, but
prints still a slightly different processing message indicating that it
is really an upgrade which we hadn't parsed so far, but this wasn't
really visible as we quickly moved on to a 'known' state.
More problematic was the reinstall case as apt hadn't recognized this
for the package name detection, so that reinstalls had no progress since
we introduced MultiArch.
Commit cbcdd3ee9d86379d1b3a44e41ae8b17dc23111d0 removes the space at the
end of the debfile name dpkg send to us and we previously had included
in the pmerror message we printed on the statusfd.
Instead of trying to inspect /proc and the fds inside we use "test -t 1"
instead as this is available and working on kfreebsd as well – not that
something breaks if we wouldn't, but we like color.
Using 'kfreebsd' here makes the test fail on a kfreebsd system
(obviously), so we just use something totally madeup in the hope that
this is less like to conflict in the future.
No reason in and of by itself at the moment, but prepares for the goal
of having 'apt search' and 'apt-cache search' using the same code now
that they at least support the same stuff. The 'apt' code is just a
multitude slower at the moment…
The method already deals with a format string, but had an else path
doing a hardcoded format as well. This is changed now to use the same
code for both - the format in the second case is still fixed though.
Michael Vogt [Fri, 5 Sep 2014 10:50:15 +0000 (12:50 +0200)]
Ensure we have a Policy in CacheFile.BuildDepCache()
This partly reverts d059cc2 and fixes bug #753297 in a more
general way by ensuring that CacheFile.BuildDepCache() builds
a pkgPolicy if there isn't one already.
Michael Vogt [Fri, 5 Sep 2014 10:03:28 +0000 (12:03 +0200)]
Fix incorrect upgradable listing in "apt list" (thanks to Michael Musenbrock)
The "apt list" command was using only the pkgDepCache but not the
pkgPolicy to figure out if a package is upgradable. This lead to
incorrect display of upgradable package when the user used the
policy to pin-down packages. Thanks to Michael Musenbrock for the
initial patch.
Make Packages & Sources generation optional, during Generate call
refactor a bit, extract code out of Generate() into
DoGenerate{PackagesAndSources,Contents}, add new
APT::FTPArchive::ContentsOnly option to allow skipping the generation
of Package/Source files (if they are generated e.g. by some db outside
of apt-ftparchives control)
Michael Vogt [Tue, 2 Sep 2014 15:06:52 +0000 (17:06 +0200)]
Use heap to allocate PatternMatch to avoid potential stack overflow
When apt-cache search with many args (> 130) is given the allocation
of PatternMatch on the stack may fail resulting in a segmentation
fault. By using the heap the max size is much bigger and we also
get a bad_alloc expection instead of a segfault (which we can catch
*if* this ever becomes a pratical problem). No test for the crash
as its not reproducable with the MALLOC_ settings in framework.
Michael Vogt [Tue, 2 Sep 2014 15:24:24 +0000 (17:24 +0200)]
* apt-pkg/deb/dpkgpm.cc:
- update string matching for dpkg I/O errors. (LP: #1363257)
- properly parse the dpkg status line so that package name is properly set
and an apport report is created. Thanks to Anders Kaseorg for the patch.
(LP: #1353171)
Michael Vogt [Tue, 2 Sep 2014 13:50:19 +0000 (15:50 +0200)]
Make Proxy-Auto-Detect check for each host
When doing Acquire::http{,s}::Proxy-Auto-Detect, run the auto-detect
command for each host instead of only once. This should make using
"proxy" from libproxy-tools feasible which can then be used for PAC
style or other proxy configurations.
Warren He [Fri, 29 Aug 2014 09:15:30 +0000 (11:15 +0200)]
initialize iPolicyBrokenCount in DepCache::Update
All other counters are correctly initialized here, expect this one. The
practical effect is low as in apt we usually just do "!= 0" checks, but
only correct counters are good counters.
APT supported versioned provides for a long while in an attempt to get
it working with rpm. While this support is old, we can be relatively
sure that it works as versioned provides are used internally to make
Multi-Arch:foreign work.
Previous versions of apt will print a warning indicating that the
versioned provides is ignored, so that something which "Provides: foo (=
2)" doesn't provide anything.
Note that dpkg does allow only a equals-relation in the provides line
as anything else is deemed too complex. apt doesn't support anything
else either and such a support would require potentially big changes.
add dpkg::source-options for dpkg-source invocation
dpkg-source can be told to enforce signature checks with
--require-valid-signature, but while this isn't feasible as default for
Debian itself at the moment, a local admin should be able to use it.
This commit also fixes the size limit on the construction of the command
being called for dpkg-source and dpkg-buildpackage.
Not all are needed for all files at the moment, but the new docbook
building hadn't available some of the entities it used as the files
weren't correctly copied around in all cases and having the same across
the bord makes working with all of them a little easier.
Our integration tests need some additional dependencies to run and
function correctly, but while multiple places run them, there is no need
to also specify the these dependencies in multiple places.
Michael Vogt [Tue, 29 Jul 2014 13:01:13 +0000 (15:01 +0200)]
Fix SmartConfigure to ignore ordering of packages that are already valid
With the change of SmartConfigure() in git commit 42d51f the ordering
code was trying to re-order dependencies, even when at this point in
time this was not needed. Now it will first check all targets of the
given dependency and only if there is not a good one try to reorder
and unpack/configure as needed.
Michael Vogt [Wed, 16 Jul 2014 11:57:50 +0000 (13:57 +0200)]
StringToBool: only act if the entire string is consumed by strtol()
StringToBool uses strtol() internally to check if the argument is
a number. This function stops when it does not find any more numbers.
So a string like "0ad" (which is a valid packagename) is interpreted
as a "0". The code now checks that the entire string is consumed
not just a part of it. Thanks to Johannes Schauer for raising this
issue.
Michael Vogt [Tue, 8 Jul 2014 13:11:14 +0000 (15:11 +0200)]
Only allow "apt-get build-dep path" when path starts with ./ or /
This avoid the subtle problem that someone might have a directory
with the same package name as the build-depends he/she is trying
to fetch. Also print a note that the specific file/dir is used.
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