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path: root/apt-pkg/contrib/hashes.h
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2017-07-12Reformat and sort all includes with clang-formatJulian Andres Klode
This makes it easier to see which headers includes what. The changes were done by running git grep -l '#\s*include' \ | grep -E '.(cc|h)$' \ | xargs sed -i -E 's/(^\s*)#(\s*)include/\1#\2 include/' To modify all include lines by adding a space, and then running ./git-clang-format.sh.
2016-09-01try not to call memcpy with length 0 in hash calculationsDavid Kalnischkies
memcpy is marked as nonnull for its input, but ignores the input anyhow if the declared length is zero. Our SHA2 implementations do this as well, it was "just" MD5 and SHA1 missing, so we add the length check here as well as along the callstack as it is really pointless to do all these method calls for "nothing". Reported-By: gcc -fsanitize=undefined
2015-11-29doc: VerifyFile checks all hashes instead of best onlyDavid Kalnischkies
The implementation changed in 495b7a615a2d8f485beadf88c6ed298f5bbe50c2 Git-Dch: Ignore Reported-By: Julian Andres Klode <jak@debian.org>
2015-11-27add messages to our deprecation warnings in libaptDavid Kalnischkies
Git-Dch: Ignore
2015-09-01Consider md5sum no longer a usable hashMichael Vogt
The md5sum hash is broken since some time and we should no longer consider it a usable hash. Also update the tests to reflect this.
2015-08-10make all d-pointer * const pointersDavid Kalnischkies
Doing this disables the implicit copy assignment operator (among others) which would cause hovac if used on the classes as it would just copy the pointer, not the data the d-pointer points to. For most of the classes we don't need a copy assignment operator anyway and in many classes it was broken before as many contain a pointer of some sort. Only for our Cacheset Container interfaces we define an explicit copy assignment operator which could later be implemented to copy the data from one d-pointer to the other if we need it. Git-Dch: Ignore
2015-06-09support hashes for compressed pdiff filesDavid Kalnischkies
At the moment we only have hashes for the uncompressed pdiff files, but via the new '$HASH-Download' field in the .diff/Index hashes can be provided for the .gz compressed pdiff file, which apt will pick up now and use to verify the download. Now, we "just" need a buy in from the creators of repositories…
2015-06-09rework hashsum verification in the acquire systemDavid Kalnischkies
Having every item having its own code to verify the file(s) it handles is an errorprune process and easy to break, especially if items move through various stages (download, uncompress, patching, …). With a giant rework we centralize (most of) the verification to have a better enforcement rate and (hopefully) less chance for bugs, but it breaks the ABI bigtime in exchange – and as we break it anyway, it is broken even harder. It shouldn't effect most frontends as they don't deal with the acquire system at all or implement their own items, but some do and will need to be patched (might be an opportunity to use apt on-board material). The theory is simple: Items implement methods to decide if hashes need to be checked (in this stage) and to return the expected hashes for this item (in this stage). The verification itself is done in worker message passing which has the benefit that a hashsum error is now a proper error for the acquire system rather than a Done() which is later revised to a Failed().
2015-04-19calculate only expected hashes in methodsDavid Kalnischkies
Methods get told which hashes are expected by the acquire system, which means we can use this list to restrict what we calculate in the methods as any extra we are calculating is wasted effort as we can't compare it with anything anyway. Adding support for a new hash algorithm is therefore 'free' now and if a algorithm is no longer provided in a repository for a file, we automatically stop calculating it. In practice this results in a speed-up in Debian as we don't have SHA512 here (so far), so we practically stop calculating it.
2014-11-08guard const-ification API changesDavid Kalnischkies
Git-Dch: Ignore
2014-11-08replace ignore-deprecated #pragma dance with _PragmaDavid Kalnischkies
For compatibility we use/provide and fill quiet some deprecated methods and fields, which subsequently earns us a warning for using them. These warnings therefore have to be disabled for these codeparts and that is what this change does now in a slightly more elegant way. Git-Dch: Ignore
2014-10-24promote filesize to a hashstringDavid Kalnischkies
It is a very simple hashstring, which is why it isn't contributing to the usability of a list of them, but it is also trivial to check and calculate, so it doesn't hurt checking it either as it can combined even with the simplest other hashes greatly complicate attacks on them as you suddenly need a same-size hash collision, which is usually a lot harder to achieve.
2014-05-09use HashStringList in the acquire systemDavid Kalnischkies
It is not very extensible to have the supported Hashes hardcoded everywhere and especially if it is part of virtual method names. It is also possible that a method does not support the 'best' hash (yet), so we might end up not being able to verify a file even though we have a common subset of supported hashes. And those are just two of the cases in which it is handy to have a more dynamic selection. The downside is that this is a MAJOR API break, but the HashStringList has a string constructor for compatibility, so with a bit of luck the few frontends playing with the acquire system directly are okay.
2014-05-09add a simple container for HashStringsDavid Kalnischkies
APT supports more than just one HashString and even allows to enforce the usage of a specific hash. This class is intended to help with storage and passing around of the HashStrings. Git-Dch: Ignore
2014-04-04Implement CacheDB for source packages in apt-ftparchiveMichael Vogt
2014-03-13follow method attribute suggestions by gccDavid Kalnischkies
Git-Dch: Ignore Reported-By: gcc -Wsuggest-attribute={pure,const,noreturn}
2014-03-13cleanup headers and especially #includes everywhereDavid Kalnischkies
Beside being a bit cleaner it hopefully also resolves oddball problems I have with high levels of parallel jobs. Git-Dch: Ignore Reported-By: iwyu (include-what-you-use)
2014-03-13warning: cast from type A to type B casts away qualifiers [-Wcast-qual]David Kalnischkies
Git-Dch: Ignore Reported-By: gcc -Wcast-qual
2013-11-26add check when sources.list changedMichael Vogt
2011-12-17try to avoid direct usage of .Fd() if possible and do read()s and coDavid Kalnischkies
on the FileFd instead
2011-12-13revert 2184.1.2: do not pollute namespace in headersDavid Kalnischkies
The breakage is just to big for now, so guard the change with #ifndef APT_8_CLEANER_HEADERS and be nice to library users
2011-09-19do not pollute namespace in the headers with using (Closes: #500198)David Kalnischkies
2011-09-13Support large files in the complete toolset. Indexes of thisDavid Kalnischkies
size are pretty unlikely for now, but we need it for deb packages which could become bigger than 4GB now (LP: #815895)
2011-07-13enable Hashes::AddFD() to skip creation of certain hashesDavid Kalnischkies
2011-02-25move sha512,256 into apt-pkg/sha2.{cc,h}, move gifford implementation to ↵Michael Vogt
sha2_internal.{cc,h}
2011-02-25add sha512 support in the client now as wellMichael Vogt
2007-09-10* apt-pkg/contrib/hashes.h:Michael Vogt
- fix anohter missing cstring include
2007-07-30* apt-pkg/acquire-item.{cc,h}:Michael Vogt
- rename "hash" into ExpectedHash in pkgAcqFile, pkgAcqIndex - add missing HashSum() call to class pkgAcqIndex - use the data provided by acquire-method (and send via the {SHA256,SHA1,MD5Sum}-Hash tag when comparing the hash, this avoids calculating the hash twice (just like old libapt) * apt-pkg/acquire-method.cc: - send MD5Sum-Hash tag to libapt to be consistant with HashString::SupportedHashes() * apt-pkg/acquire-worker.cc: - check with "Owner->HashSum().HashType()" what hash the frontend is expecting and pass it to pkgAcquireItem::Done() in the new HashString format - add some debugging output * apt-pkg/contrib/hashes.cc: - fix off-by-one error when constructing a HashString from a single input string * apt-pkg/contrib/hashes.h: - add "HashType()" method * apt-pkg/init.h, apt-pkg/makefile, methods/makefile: - break ABI
2007-07-26* implement sha256/sha1/md5 checking with proper backward compatibilityMichael Vogt
and fallback
2006-10-02* remove the remaining #ifdef __GNUG__ bitsMichael Vogt
2006-10-02* removed the pragma messMichael Vogt
2006-03-08* added ajs patchMichael Vogt
2005-05-23* merged with my apt--fixes--0 branchMichael Vogt
Patches applied: * apt@packages.debian.org/apt--misc-abi-changes--0--patch-4 Merge from mainline * apt@packages.debian.org/apt--misc-abi-changes--0--patch-5 Merge from mainline * apt@packages.debian.org/apt--misc-abi-changes--0--patch-6 Collapse both pkgAcquire::Run() methods into one, with a default value * michael.vogt@ubuntu.com--2005/apt--fixes--0--base-0 tag of apt@packages.debian.org/apt--main--0--patch-79 * michael.vogt@ubuntu.com--2005/apt--fixes--0--patch-1 * merged obvious fixes into the tree to make it easy for matt to merge * michael.vogt@ubuntu.com--2005/apt--fixes--0--patch-2 * more merges from otavio that looks good/uncritical * michael.vogt@ubuntu.com--2005/apt--fixes--0--patch-3 * merged Matts misc-abi-changes tree * michael.vogt@ubuntu.com--2005/apt--fixes--0--patch-4 * finalized the changelog for a ubuntu build * otavio@debian.org--2005/apt--fixes--0--base-0 tag of apt@packages.debian.org/apt--main--0--patch-71 * otavio@debian.org--2005/apt--fixes--0--patch-1 Fix comments about the need of xmlto * otavio@debian.org--2005/apt--fixes--0--patch-2 Fix a compile warning * otavio@debian.org--2005/apt--fixes--0--patch-3 Sync with apt--main--0--patch-76 * otavio@debian.org--2005/apt--fixes--0--patch-4 Sync with apt--main--0--patch-78 * otavio@debian.org--2005/apt--fixes--0--patch-5 Add fixes that was wrongly included on DDTP changes. * otavio@debian.org--2005/apt--fixes--0--patch-8 Add information about the other fixes include on this branch now. * otavio@debian.org--2005/apt--fixes--0--patch-9 Merge last changes from apt--main--0. * otavio@debian.org--2005/apt--fixes--0--patch-10 Fix warnings about min/max change in gcc-4.0 * otavio@debian.org--2005/apt--fixes--0--patch-11 Fix remaning warnings while compiling gcc-4.0 * otavio@debian.org--2005/apt--fixes--0--patch-12 Add changelog entry about the fixes for warnings while compiling using GCC 4.0 compiler.
2004-09-20BSD testing fixesArch Librarian
Author: jgg Date: 2001-03-11 05:30:20 GMT BSD testing fixes
2004-09-20More SHA-1 prepArch Librarian
Author: jgg Date: 2001-03-06 07:15:29 GMT More SHA-1 prep