Arch Linux typically runs into this with /sys when upgrading the
filesystem package in build chroots, but LXC users might also run into
this, since their /sys is shared from the host and must, for security
reasons, be mounted RO.
I've neglected to add any tests for this because they would require root
in order to run. Current tests all pass with this patch and I've
confirmed the desired behavior in a VM. Incidentally, the first hunk of
this patch (skipping can_remove_file checks for directories) resolves the
case of API mountpoints being removed since they eventually fall into
unlink_file and fail with "contains files". However, this patch should
still be the Right Thing To Do™, as we can't possibly remove a directory
that is also a mountpoint.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
[Allan] Do not skip checking if directories can be removed. Instead test
if directories are mountpoints in can_remove_file.
Signed-off-by: Allan McRae <allan@archlinux.org>
We record whether the default SigLevel is set in order to add upon
it for the *FileSigLevel entries. When using the only valid value
of "SigLevel = Never" with non-gpgme builds, we need to ignore
the ALPM_SIG_PACKAGE_SET flag when determining if we have a valid
value for the database SigLevel.
Signed-off-by: Allan McRae <allan@archlinux.org>
Fixes all clang warnings with -Wformat-literal.
Also, fix genuine formating issue discovered once adding these attributes
and add a cast to prevent a gcc warning.
Signed-off-by: Allan McRae <allan@archlinux.org>
This also lead me to notice that in _alpm_gpgme_checksig many things
were not being cleaned up. Fix this by having CHECK_ERR goto gpg_error
and make the required adjustments.
Signed-off-by: Allan McRae <allan@archlinux.org>
When installing a package with "pacman -U" that has a detached
signature, check if the needed key is in the keyring and download
if necessary.
Signed-off-by: Allan McRae <allan@archlinux.org>
Now that the keyring is checked for all needed keys before the
validation, we can not reach a point of a missing key when doing
validity checks for sync operations.
Signed-off-by: Allan McRae <allan@archlinux.org>
Keys used to create signatures are checked for presence in the keyring
before package validation is performed.
Signed-off-by: Allan McRae <allan@archlinux.org>
Conflicts:
lib/libalpm/alpm.h
Signed-off-by: Allan McRae <allan@archlinux.org>
This does not support all possibilities of RFC4880, but it does
cover every key currently used in Arch Linux.
Signed-off-by: Allan McRae <allan@archlinux.org>
This will be useful for checking the availablity of all keys before
perfoming validation in sync operations and for downloading a needed
key in upgrade operations.
Signed-off-by: Allan McRae <allan@archlinux.org>
Add LocalFileSigLevel and RemoteFileSigLevel to control the signature
checking for "pacman -U <file>" and "pacman -U <url>" operations
respectively. The starting value for both these options is SigLevel,
if it is specified in the [options] section, or the built-in system
default. The specified values override and/or supplement this initial
value. Note there is no distinction between setting "Required" and
"PackageRequired" as there are no database options for Upgrade
operations.
Signed-off-by: Allan McRae <allan@archlinux.org>
We still call some of these 'deprecated' methods elsewhere, so this
shouldn't present a problem. When we decide 2.x support is to be dropped,
we should update all of the code to not call deprecated methods.
Allan: Adjusted with respect to previous patches adding libarchive
compatibilty layer.
Signed-off-by: Allan McRae <allan@archlinux.org>
This allows us to support both libarchive 2.8.x as well as 3.x without
deprecation warnings on compile.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
I suspect that eventually we're going to end up returning a pointer to
an allocated struct to describe the download result, but that's for
another patch when the need arises...
Fixes FS#33508.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
Users have hit issues behind corporate firewalls that initially throttle
downloads to ~1B/sec.
Signed-off-by: Olivier Langlois < olivier.pis.langlois@transport.alstom.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
prefix defaults to "UNKOWN" if null or an empty string is provided.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
The FHS (2.3) says having ldconfig in /sbin is optional and it is usually
located in /usr/sbin. So /sbin/ldconfig should not be hard coded in
pacman. Instead, provide a configure option --with-ldconfig that defaults
to the current path.
Signed-off-by: Allan McRae <allan@archlinux.org>
This reverts commit 4a8c2852a8.
This reverts commit 993700bc6b.
This reverts commit bb4d2b72c1.
This reverts commit 60b192e383.
Signed-off-by: Allan McRae <allan@archlinux.org>
RFC 2616 doesn't forbid a 301 or 302 repsonse from having a body, and
servers exist in the wild that show this behavior. In order to prevent
pacman from showing a progress bar when we aren't actually downloading a
package (and merely following one of these pain in the butt redirects),
capture the server response code in the response header, rather than
waiting to peel it off the handle after the download has finished.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Reported-by: Alexandre Filgueira <alexfilgueira@cinnarch.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
The ldconfig binary is not guaranteed to be in /sbin. Change to calling
just "ldconfig" rather than using the full path.
This removed the check that the ldconfig binary exists. However, it is
a reasonable assumption that it will exist if its configuration file
does.
Signed-off-by: Allan McRae <allan@archlinux.org>
This makes us more robust to utilities changing paths. There is no
functional change when a full path is specified.
Signed-off-by: Allan McRae <allan@archlinux.org>
Teach pacman to save backup files with extension .pacsave.n, where n is a
positive integer. The current backup file shall be saved as <name>.pacsave,
while existing .pacsave.n files will be renamed to <name>.pacsave.n+1
Example:
1. You have subversion installed in your local repo. /etc/conf.d/svnserve
is a file to be backed up. It contains local modifications
2. You remove subversion from your repo. /etc/conf.d/svnserve is backed up as
/etc/conf.d/svnserve.pacsave
2. You install subversion again
3. You edit /etc/conf.d/svnserve
4. You remove subversion. The existing /etc/conf.d/svnserve.pacsave is renamed
to /etc/conf.d/svnserve.pacsave.1 and /etc/conf.d/svnserve is backed up as
/etc/conf.d/svnserve.pacsave
Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
Rebased from original email and adjusted for util-common usage.
Signed-off-by: Florian Pritz <bluewind@xinu.at>
Signed-off-by: Allan McRae <allan@archlinux.org>
There is duplicated code in the util.c files in the libalpm and pacman
source code. Split this into a separate file so that it can be shared
via a symlink. This prevents code divergence between the two code bases.
Also, move mbasename and mdirname from pacman/util.c into util-common.c
in preparation for the following patch that uses them to add an extension
to pacsave files.
Signed-off-by: Allan McRae <allan@archlinux.org>
This allows compiling in both clang and gcc without running into
oddities regarding const vs. defined constant values.
Signed-off-by: Dan McGee <dan@archlinux.org>
When a configured repo database is not already downloaded, a warning
message such as "warning: database file for 'testing' does not exist"
is printed. Disable this warning when the database is scheduled to
be downloaded in the transaction.
Signed-off-by: Allan McRae <allan@archlinux.org>
The warning given for a signature timstamp being in the future compared
to the system time stated the opposite.
Also, move this warning to debug output. It is useless in its current
form as the package or database that is giving the error is not
mentioned and so other debug output is needed to find the offending
signature.
Signed-off-by: Allan McRae <allan@archlinux.org>
Much like packages that require a give package are displayed in the
"Required by" field of its information output, alos display packages
that optionally require the package.
Inspired-by: Benedikt Morbach <benedikt.morbach@googlemail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
When a package is being removed, provide a notification (via a callback)
if any local package requires it as an optdepend.
Signed-off-by: Allan McRae <allan@archlinux.org>
This is a bug that has been around since at least 2007. On a package
upgrade (either by -S or -U) a new directory could overwrite any file.
This is caused by the filelist difference calculation ignoring all
directories and thus no new directories were checked for conflicting
files on the filesystem.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
[Allan: Remove expected failure from fixed pactests]
Signed-off-by: Allan McRae <allan@archlinux.org>
Return -1 if a path is too long to resolve or we run out of memory.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
This applies to a case such as when /lib is a symlink to /usr/lib. If a
package is installed which contains /lib/libfoo.so, pacman will complain
if this package is then "fixed" to contain /usr/lib/libfoo.so. Since
these have the same effective path and it exists within the same
package, ignore the conflict.
Fixes FS#30681.
Signed-off-by: Allan McRae <allan@archlinux.org>
File paths are resolved if necessary during inter-package conflict
checks so that packages carrying the same effective file due to
directory symlinks on the filesystem are flagged as conflicting.
Signed-off-by: Allan McRae <allan@archlinux.org>
If a filename isn't resolved, the original can be used instead of strdup()ing
it.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
The _alpm_filelist_resolve function takes a filelist and creates
a list with any symlinks in directory paths resolved.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>
Add an array to hold the resolved paths of the files in alpm_filelist_t.
When the file name and its resolved file name are identical, the pointer
to the original file name is used to avoid duplicate memory allocation.
Signed-off-by: Allan McRae <allan@archlinux.org>
Detect a conflict between a file/symlink in one package and a directory
in another when both are being installed at once.
A side effect is the creation of conflicts between a directory symlink
and a real directory (e.g lib -> usr/lib in pkg1 and /lib in pkg2).
Given we can not guarantee pkg1 is installed before pkg2, this is a
genuine conflict.
Signed-off-by: Allan McRae <allan@archlinux.org>
This is redundant, and any usage of -D should belong to CPPFLAGS.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
GPG signatures have a timestamp which is checked and if it's in the
future, verification will fail.
Dan: slight wording change.
Signed-off-by: Florian Pritz <bluewind@xinu.at>
Given the message is repeated for each repo, it is a good idea to
print the repo name in the output.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
To improve conflict checking, we will need to make these functions
diverge to an extent where having two separate functions will be
preferable.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
We have a few of these and might as well gather them together. This also
cleans up the code a bit by using an enum instead of integer values, as
well as makes a "search for file in filelist" function public so
frontends can do better than straight linear search of the filelists.
Signed-off-by: Dan McGee <dan@archlinux.org>
74274b5dc3 which added the real_line_size to the buffer struct
didn't properly account for what happens when archive_fgets has to loop
more than once to find the end of a line. In most cases, this isn't a
problem, but could potentially cause a longer line such as PGP signature
to be improperly read.
This patch fixes the oversight and focuses on only calculating the line
length when we hit the end of line marker. The effective length is then
calculated via pointer arithmetic as:
(start_of_last_read + read_length) - start_of_line
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Take advantage of the fact that our filelists are arrays sorted by
filename with a known length and use a binary search. This should speed
up file conflict checking, particularly when larger packages are
involved.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
This may very well be a no-op, but better safe than sorry.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
On the assumption that these arrays are already mostly sorted, use the
standard quicksort method to sort the files arrays. The files_msort
function name is tweaked to give it a more general name to reflect this
change.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
When checking if a package owns a directory, it is important to check
not only that all the files in the directory are part of the package,
but also if the directory is part of a package. This catches empty
subdirectories during conflict checking for directory to file/symlink
replacements.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
When two packages own an empty directory, pacman finds no conflict when
one of those packages wants to replace the directory with a file or a
symlink. When it comes to actually extracting the new file/symlink,
pacman sees the directory is still there (we do not remove empty
directories if they are owned by a package) and refuses to extract.
Detect this potential conflict early and bail. Note that it is a
_potential_ conflict and not a guaranteed one as the other package owning
the directory could be updated or removed first which would remove
the conflict. However, pacman currently can not sort package installation
order to ensure this, so this conflict requires manual upgrade ordering.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Only load filesystem details for the mount points that we're actually
going to write to. This reduces our syscall count considerably. In the
case of installation, we would actually stat every mountpoint twice (an
extra round for download diskspace) which means (on my system) a total
of 60 syscalls to write to 3 partitions when installing the kernel
package. This change reduces the 60 syscalls down to the expected 3.
A slight debug output change is added here to discern between a
mountpoint added to our linked list versus when we actually load the fs
info.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
add mount_point_load_fsinfo() for platforms using getmntent().
Dan: move the #ifdef slightly so we don't have unused functions on
certain platforms (e.g., OS X).
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Similar to the case for makedepends, it is useful to be able to
access this information without parsing a PKGBUILD.
Signed-off-by: Allan McRae <allan@archlinux.org>
If known, callers can pass the line size to this function in order to
avoid an strlen call. Otherwise, they simply pass 0 and
_alpm_strip_newline will do the call instead.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
We inevitably call strlen() or similar on the line returned from
_alpm_archive_fgets(), so include the line size of the interesting line
in the struct.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
With lazy loading in place, it's now quite obvious that we aren't
necessarily checking the right mountpoint for necessary download space.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
This is useful for tools that automatically rebuild packages and
thus require to generate a build order. These entries are skipped
by pacman.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Apparently gcc 4.7 has decided that -Wshadow warnings aren't worth
reporting anymore even with the flag enabled. These were found on
an Ubuntu 10.04 install.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
This path is rarely (read: never) taken in any normal run of the code,
so injecting the fprintf() call everywhere with the macro is a bit
overkill. Instead, add a lightweight _alpm_alloc_fail() function that
gets called instead.
This does have a reasonable effect on the size of the generated code;
most places using the macros provided by util.c have their code size
reduced.
Signed-off-by: Dan McGee <dan@archlinux.org>
Increment the strlen() provided value by 1 for the NULL byte so we use
the right value in all three places we later reference it.
Signed-off-by: Dan McGee <dan@archlinux.org>
There is little reason here to grab 4K from the heap only to return it a
few lines later. Instead, just use the stack to hold the returned value
saving ourselves the malloc/free cycle.
Signed-off-by: Dan McGee <dan@archlinux.org>
No one seems to do this "correctly", but for the sake of having an easy
method of detecting the presence and version of libalpm on a given
system, we provide a straightforward .pc file.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
There isn't a whole lot of reason other than code clarity for this, but
it makes it a bit more obvious where multivalued attributes start.
Signed-off-by: Dan McGee <dan@archlinux.org>
Detected by clang scan-build static code analyzer.
* Don't attempt to free an uninitialized gpgme key variable
* Initialize answer variable before asking frontend a question
* Pass by reference instead of value if uninitialized fields are
possible in download signal handler code
* Ensure we never call strlen() on NULL payload->remote_name value
Signed-off-by: Dan McGee <dan@archlinux.org>
Not sure why this one wasn't showing up on x86_64, but this fixes the
compile on i686.
diskspace.c: In function 'calculate_removed_size':
diskspace.c:247:4: error: assuming signed overflow does not occur when negating a division [-Werror=strict-overflow]
cc1: all warnings being treated as errors
Signed-off-by: Dan McGee <dan@archlinux.org>
This fixes a bunch of small issues in order to enable a clean
successful build with a crazy number of GCC warning flags. A lot of
these changes are covered by -Wshadow, -Wformat-security, and
-Wstrict-overflow=5.
Signed-off-by: Dan McGee <dan@archlinux.org>
