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When installing a remote package with "pacman -U <url>", pacman renames
the downloaded package file to match the name given in the
Content-Disposition header. However, pacman does not sanitize this name,
which may contain slashes, before calling rename(). A malicious server (or
a network MitM if downloading over HTTP) can send a content-disposition
header to make pacman place the file anywhere in the filesystem,
potentially leading to arbitrary root code execution. Notably, this
bypasses pacman's package signature checking.
For example, a malicious package-hosting server (or a network
man-in-the-middle, if downloading over HTTP) could serve the following
header:
Content-Disposition: filename=../../../../../../usr/share/libalpm/hooks/evil.hook
and pacman would move the downloaded file to
/usr/share/libalpm/hooks/evil.hook. This invocation of "pacman -U" would
later fail, unable to find the downloaded package in the cache directory,
but the hook file would remain in place. The commands in the malicious
hook would then be run (as root) the next time any package is installed.
Discovered-by: Adam Suhl <asuhl@mit.edu>
Signed-off-by: Allan McRae <allan@archlinux.org>
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If a mirror responds with a 301 redirect to itself, it will create an
infinite redirect loop. This will cause pacman to hang, unresponsive to
even a SIGINT. The result is pacman being unable to sync or
download any package from a particular repo if its current mirror
is stuck in a redirect loop. Setting libcurl's MAXREDIRS option
effectively prevents a redirect loop from hanging the process.
Signed-off-by: Mark Ulrich <mark.ulrich.86@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: morganamilo <morganamilo@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: morganamilo <morganamilo@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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The behaviour of "pacman -Qu" was very strange... It would only consider
packages from repos with Usage = Search (or All), and ignore those with
Usage = Sync, Install or Upgrade.
This is because the function alpm_sync_newversion() used ALPM_DB_USAGE_SEARCH
for its filtering. Given this function is documented (at least in the source)
to "Check for new version of pkg in sync repos", I would expect that to look at
all repos. However, just changing this parameter, would result in a fairly
silent change in behaviour of this function. Instead, rename the function
and remove this filtering altogether. Users of this function can filter
the dbs passed to this function to achieve their desired output.
Signed-off-by: Allan McRae <allan@archlinux.org>
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The alignment was not overly helpful and caused unnecessary churn when a new
value with longer name was added.
Signed-off-by: Allan McRae <allan@archlinux.org>
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Commit 0994893b0e6b627d45a63884ac01af7d0967eff2 added the
alpm_pkg_get_{make,check}depends functions but forgot to include
logic for parsing these fields from the database. As a result these
functions will always return an empty list.
This commit adds the parsing logic.
Signed-off-by: morganamilo <morganamilo@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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While at it and for consistency move the assignment of the variable
'local' into the subsequent conditional.
Signed-off-by: Michael Straube <michael.straube@posteo.de>
Signed-off-by: Allan McRae <allan@archlinux.org>
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sync:
As pointed out by Andrew Gregory there could be an error when adding
duplicates if they are two separate packages with the same name. Add a
check in alpm_add_pkg() to test whether the duplicate is actually the
same package, and if so, log a debug message and return success to skip
the package. If the duplicate is a different package return
ALPM_ERR_TRANS_DUP_TARGET and treat that error just like any other error
in pacman.
remove:
Change alpm_remove_pkg() to just log a debug message and return success
to skip duplicates. Remove the handling of ALPM_ERR_TRANS_DUP_TARGET in
pacman.
Also fixes FS#49377.
Suggested-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Michael Straube <michael.straube@posteo.de>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Commit 2ee7a8d89ad693617307260604e1d58757fd2978 replaced a manual check
for a local package with a check for the "oldpkg" member, which gets set
at the beginning of the transaction. If the package was also in the
remove list, such as when a package gets replaced, it would no longer be
in the local db and pacman would try to remove it twice, resulting in
superfluous error messages.
Fixes: FS#50875, FS#55534
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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ALPM_SIG_USE_DEFAULT does not refer to an actual siglevel, rather it
indicates that the global default should be used in place of the
operation-specific one. Setting this value for the global default
itself makes no sense.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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An empty siglevel does not do any signature verification which is
exactly what we want when compiled without gpg support. This is already
allowed in other parts of the codebase and required for the test suite
to pass when compiled without gpg support.
Fixes: FS#60880
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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"wrong or NULL argument passed" is a useless error for end users.
Fixes FS#60880.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Provide both build systems in parallel for now, to ensure that we work
out all the differences between the two. Some time from now, we'll give
up on autotools.
Meson tends to be faster and probably easier to read/maintain. On my
machine, the full meson configure+build+install takes a little under
half as long as a similar autotools-based invocation.
Building with meson is a two step process. First, configure the build:
meson build
Then, compile the project:
ninja -C build
There's some mild differences in functionality between meson and
autotools. specifically:
1) No singular update-po target. meson only generates individual
update-po targets for each textdomain (of which we have 3). To make
this easier, there's a build-aux/update-po script which finds all
update-po targets and runs them.
2) No 'make dist' equivalent. Just run 'git archive' to generate a
suitable tarball for distribution.
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If poll() is interrupted by a signal, alpm was closing the socket it
uses for listening to script/hook output. This would drop script output
at the least and kill the script at the worst.
Fixes FS#60396
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Front-ends or libraries may set signals to be ignored, which gets
inherited across fork and exec. This can cause scripts to malfunction
if they expect the signal. To make matters worse, scripts written in
bash can't reset signals that were ignored when bash was started.
Fixes FS#56756
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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When --needed is used, up to date packages are now filtered out
before showing the group select.
Fixes FS#22870.
Signed-off-by: morganamilo <morganamilo@gmail.com>
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Upon receiving SIGINT a flag is set to abort the (curl) download.
However, since it was never reset/initialized, if a front-end doesn't
actually exit on SIGINT, and later tries any operation that needs to
perform a new download, said download would always get aborted right
away due to the flag not having been reset.
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Variable dload_interrupted is used both to abort a download because
SIGINT was caught, and when a file limit is reached. But raising SIGINT
is only meant to happen in the first case.
Signed-off-by: Olivier Brunel <jjk@jjacky.com>
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Currently, if checking the validity of packages fails due to an access
error on one or more packages, the user must sift through debug output
in order to find the culprit package(s). This patch adds a call to
_alpm_log in such a case to make the culprits more easily visible.
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Add a case for curl error 'Could not resolve host'.
An attempt to fix FS#48285.
Signed-off-by: Michael Straube <straubem@gmx.de>
Signed-off-by: Allan McRae <allan@archlinux.org>
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It is desirable to have 'a-post.hook' ordered after 'a.hook'. For this,
it is needed to ignore the suffix when sorting.
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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The pacman --overwrite operation currently expects a path without
the root prefix specified. This is unexpected, particularly
given our conflict error message reports the path with the root
prefix included.
This patch allows libalpm to overwrite files with the root prefix
specified.
Signed-off-by: Allan McRae <allan@archlinux.org>
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The filename in the license header did not match the actual filename
as in the other files. Hopefully this is not too nit-picky.
Signed-off-by: Michael Straube <straubem@gmx.de>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Also remove any translations that are less than 75% complete. These will
be readded once translation completion passes our minimum threshold.
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Many of these are pointless (e.g. there is no need to explicitly turn on
spellchecking and language dictionaries for the manpages by default).
The only useful modelines are the ones enforcing the project coding
standards for indentation style (and "maybe" filetype/syntax, but
everything except the asciidoc manpages and makepkg.conf is already
autodetected), and indent style can be applied more easily with
.editorconfig
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Attempting to compile pacman with gcc8 results in several warnings like:
remove.c: In function ‘unlink_file.isra.4’:
remove.c:407:34: warning: ‘.pacsave.’ directive output may be truncated writing 9 bytes into a region of size between 1 and 4096 [-Wformat-truncation=]
Fix by adding checks to error out if snprintf tries to reserve a
truncated filename. Because the return values are checked, gcc delegates
the truncation response to our code instead of throwing warnings.
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Add all files to the relevant POTFILES.in. This avoids missing
translations added to old files.
Signed-off-by: Allan McRae <allan@archlinux.org>
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pkg-config has built-in dependency handling, but we currently insert the
raw $LIBS into libalpm's own linker flags and fail to handle Cflags at
all.
For dependencies which support pkg-config, simply use that instead.
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
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make update-copyright OLD=2017 NEW=201
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Stefan Klinger <git@stefan-klinger.de>
Signed-off-by: Allan McRae <allan@archlinux.org>
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RFC 4880 defines two packet formats for OpenPGP. Pacman aborted its key
in keyring check with an error message if it encountered the new format.
This was fine until some annoying Arch Trusted User generated a key
using the new format!
Implement the new format. This also required parsing the hashed sub
packets. requiring the parsing code to moved to its own function.
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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If rehash ever failed with a full hash it would return the old hash
that is already full. get_hash_position would then loop forever
because it would never find an empty bucket.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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If you manage to download a bad database (e.g. an html file when
behind a proxy or with a badly configured webserver), pacman makes
sure you know about it. Here is some example output:
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
error: could not open file /var/lib/pacman/sync/extra.db: Unrecognized archive format
I don't know how many times that gets printed because it goes beyond my scrollback
buffer.
Flag a database that we can "open" and "fstat" but not read from as invalid to avoid
this.
Signed-off-by: Allan McRae <allan@archlinux.org>
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6cfc4757b98e813428d261dbc185e20618ca83a6 was overzealous in attempting
to optimize away a call to strcmp based on a comparison of hashes. The
call can be skipped if the hashes are different, but different strings
could have the same hash.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Frontends rely on an initialization call for setup between downloads.
Checking for intialization after checking for a completed download can
skip initialization in cases where files are small enough to be
downloaded all at once (FS#56408). Relying on previous download size
can result in multiple initializations if there are multiple
non-transfer events prior to the download starting (fS#56468).
Introduce a new cb_initialized variable to the payload struct and use it
to ensure that the callback is initialized exactly once prior to any
actual events.
Fixes FS#56408, FS#56468
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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This is a rewrite of Tobias Stoeckmann’s patch from June 2016[1] using
functions instead of macros. (Thanks to Tobias for explanations of his patch.)
A short question on Freenode IRC showed that macros are generally discouraged
and functions should be used.
The patch introduces a static size_t length_check() in libalpm/signing.c.
[1] Original patch:
https://lists.archlinux.org/pipermail/pacman-dev/2016-June/021148.html
CVE request (and assignment):
http://seclists.org/oss-sec/2016/q2/526
Signed-off-by: Allan McRae <allan@archlinux.org>
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- Add missing braces to one-line if blocks
- Move opening brace to line end
Signed-off-by: Michael Straube <straubem@gmx.de>
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This makes it possible to detect a failure in several alpm_list
functions. Previously these functions would continue after a failure,
returning partial results and potentially leaking memory.
Unfortunately, NULL is a valid return value for the affected functions
if the input list is empty, so they still do not have a dedicated error
value. Callers can at least detect an error by checking if the input
list was empty.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
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contatenate -> concatenate
Signed-off-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Allan McRae <allan@archlinux.org>
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