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2015-04-19unsigned Release files can expire, tooDavid Kalnischkies
Checking Valid-Until on an unsigned Release file doesn't give us any security brownie points as an attacker could just change the date and in practice repositories with unsigned Release files will very likely not have a Valid-Until date, but for symetry and the fact that being unsigned is currently just a warning, while expired is a fatal error.
2015-04-19ensure lists/ files have correct permissions after apt-cdrom addDavid Kalnischkies
Its a bit unpredictable which permissons and owners we will encounter on a CD-ROM (or a USB stick, as apt-cdrom is responsible for those too), so we have to ensure in this codepath as well that everything is nicely setup without waiting for a 'apt-get update' to fix up the (potential) mess.
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.
2015-04-19if we can, use gccs __builtin_swap methodsDavid Kalnischkies
Git-Dch: Ignore
2015-04-10reimplement the last uses of sprintfDavid Kalnischkies
Working with strings c-style is complicated and error-prune, so by converting to c++ style we gain some simplicity and avoid buffer overflows by later extensions. Git-Dch: Ignore
2015-03-16parse arch-qualified Provides correctlyHelmut Grohne
The underlying problem is that libapt-pkg does not correctly parse these provides. Internally, it creates a version named "baz:i386" with architecture amd64. Of course, such a package name is invalid and thus this version is completely inaccessible. Thus, this bug should not cause apt to accept a broken situation as valid. Nevertheless, it prevents using architecture qualified depends. Closes: 777071
2015-03-16fix some new compiler warnings reported by gcc-5David Kalnischkies
Git-Dch: Ignore
2015-03-16properly implement pkgRecord::Parser for *.deb filesDavid Kalnischkies
Implementing FileName() works for most cases for us, but other frontends might need more and even for us its not very stable as the normal Jump() implementation is pretty bad on a deb file and produce errors on its own at times. So, replacing this makeshift with a complete implementation by mostly just shuffling code around.
2015-03-16merge debian/sid into debian/experimentalDavid Kalnischkies
2015-01-10award points for positive dependencies againDavid Kalnischkies
Commit 9ec748ff103840c4c65471ca00d3b72984131ce4 from Feb 23 last year adds a version check after 8daf68e366fa9fa2794ae667f51562663856237c added 8 days earlier negative points for breaks/conflicts with the intended that only dependencies which are satisfied propagate points (aka: old conflicts do not). The implementation was needlessly complex and flawed through preventing positive dependencies from gaining points like they did before these commits making library transitions harder instead of simpler. It worked out anyhow most of the time out of pure 'luck' (and other ways of gaining points) or got miss attributed to being a temporary hick-up. Closes: 774924
2014-12-23pass-through stdin fd instead of content if not a terminalDavid Kalnischkies
Commit 299aea924ccef428219ed6f1a026c122678429e6 fixes the problem of not logging terminal in case stdin & stdout are not a terminal. The problem is that we are then trying to pass-through stdin content by reading from the apt-process stdin and writing it to the stdin of the child (dpkg), which works great for users who can control themselves, but pipes and co are a bit less forgiving causing us to pass everything to the first child process, which if the sending part of the pipe is e.g. 'yes' we will never see the end of it (as the pipe is full at some point and further writing blocks). There is a simple solution for that of course: If stdin isn't a terminal, we us the apt-process stdin as stdin for the child directly (We don't do this if it is a terminal to be able to save the typed input in the log). Closes: 773061
2014-12-23always run 'dpkg --configure -a' at the end of our dpkg callingsDavid Kalnischkies
dpkg checks now for dependencies before running triggers, so that packages can now end up in trigger states (especially those we are not touching at all with our calls) after apt is done running. The solution to this is trivial: Just tell dpkg to configure everything after we have (supposely) configured everything already. In the worst case this means dpkg will have to run a bunch of triggers, usually it will just do nothing though. The code to make this happen was already available, so we just flip a config option here to cause it to be run. This way we can keep pretending that triggers are an implementation detail of dpkg. --triggers-only would supposely work as well, but --configure is more robust in regards to future changes to dpkg and something we will hopefully make use of in future versions anyway (as it was planed at the time this and related options were implemented). Note that dpkg currently has a workaround implemented to allow upgrades to jessie to be clean, so that the test works before and after. Also note that test (compared to the one in the bug) drops the await test as its is considered a loop by dpkg now. Closes: 769609
2014-12-23do not make PTY slave the controlling terminalDavid Kalnischkies
If we have no controlling terminal opening a terminal will make this terminal our controller, which is a serious problem if this happens to be the pseudo terminal we created to run dpkg in as we will close this terminal at the end hanging ourself up in the process… The offending open is the one we do to have at least one slave fd open all the time, but for good measure, we apply the flag also to the slave fd opening in the child process as we set the controlling terminal explicitely here. This is a regression from 150bdc9ca5d656f9fba94d37c5f4f183b02bd746 with the slight twist that this usecase was silently broken before in that it wasn't logging the output in term.log (as a pseudo terminal wasn't created). Closes: 772641
2014-12-10do not make PTY slave the controlling terminalDavid Kalnischkies
If we have no controlling terminal opening a terminal will make this terminal our controller, which is a serious problem if this happens to be the pseudo terminal we created to run dpkg in as we will close this terminal at the end hanging ourself up in the process… The offending open is the one we do to have at least one slave fd open all the time, but for good measure, we apply the flag also to the slave fd opening in the child process as we set the controlling terminal explicitely here. This is a regression from 150bdc9ca5d656f9fba94d37c5f4f183b02bd746 with the slight twist that this usecase was silently broken before in that it wasn't logging the output in term.log (as a pseudo terminal wasn't created). Closes: 772641
2014-12-07always run 'dpkg --configure -a' at the end of our dpkg callingsDavid Kalnischkies
dpkg checks now for dependencies before running triggers, so that packages can now end up in trigger states (especially those we are not touching at all with our calls) after apt is done running. The solution to this is trivial: Just tell dpkg to configure everything after we have (supposely) configured everything already. In the worst case this means dpkg will have to run a bunch of triggers, usually it will just do nothing though. The code to make this happen was already available, so we just flip a config option here to cause it to be run. This way we can keep pretending that triggers are an implementation detail of dpkg. --triggers-only would supposely work as well, but --configure is more robust in regards to future changes to dpkg and something we will hopefully make use of in future versions anyway (as it was planed at the time this and related options were implemented). Closes: 769609
2014-12-07correct architecture detection for 'rc' packages for purgeDavid Kalnischkies
We were already considering these cases, but the code was flawed, so that packages changing architectures are incorrectly handled and hence the wrong architecture is used to call dpkg with, so that dpkg says the package isn't installed (which it isn't for the requested architecture). Closes: 770898
2014-12-07properly handle already reinstall pkgs in orderingDavid Kalnischkies
The bugreport itself describes the case of the ordering code detecting a loop where none is present, but the testcase finds also cases in which there is actually a loop and we fail to realize it. --reinstall can be considered an interactive command through and it usually doesn't encounter such "hard" problems (= looping essentials), so this is less serious than it sounds at first. Closes: 770291
2014-11-28fix PTY interaction on linux and kfreebsdDavid Kalnischkies
We run dpkg on its own pty, so we can log its output and have our own output around it (like the progress bar), while also allowing debconf and configfile prompts to happen. In commit 223ae57d468fdcac451209a095047a07a5698212 we changed to constantly reopening the slave for kfreebsd. This has the sideeffect though that in some cases slave and master will lose their connection on linux, so that no output is passed along anymore. We fix this by having always an fd referencing the slave open (linux), but we don't use it (kfreebsd). Failing to get our PTY up and running has many (bad) consequences including (not limited to, nor all at ones or in any case) garbled ouput, no output, no logging, a (partial) mixture of the previous items, … This commit is therefore also reshuffling quiet a bit of the creation code to get especially the output part up and running on linux and the logging for kfreebsd. Note that the testcase tries to cover some cases, but this is an interactivity issue so only interactive usage can really be a good test. Closes: 765687
2014-11-28close leaking slave fd after setting up pty magicDavid Kalnischkies
The fd moves out of scope here anyway, so we should close it properly instead of leaking it which will tickle down to dpkg maintainer scripts. Closes: 767774
2014-11-19fix PTY interaction on linux and kfreebsdDavid Kalnischkies
We run dpkg on its own pty, so we can log its output and have our own output around it (like the progress bar), while also allowing debconf and configfile prompts to happen. In commit 223ae57d468fdcac451209a095047a07a5698212 we changed to constantly reopening the slave for kfreebsd. This has the sideeffect though that in some cases slave and master will lose their connection on linux, so that no output is passed along anymore. We fix this by having always an fd referencing the slave open (linux), but we don't use it (kfreebsd). Failing to get our PTY up and running has many (bad) consequences including (not limited to, nor all at ones or in any case) garbled ouput, no output, no logging, a (partial) mixture of the previous items, … This commit is therefore also reshuffling quiet a bit of the creation code to get especially the output part up and running on linux and the logging for kfreebsd. Note that the testcase tries to cover some cases, but this is an interactivity issue so only interactive usage can really be a good test. Closes: 765687
2014-11-18close leaking slave fd after setting up pty magicDavid Kalnischkies
The fd moves out of scope here anyway, so we should close it properly instead of leaking it which will tickle down to dpkg maintainer scripts. Closes: 767774
2014-11-18create our cache and lib directory always with mode 755David Kalnischkies
We autocreate for a while now the last two directories in /var/lib/apt/lists (similar for /var/cache/apt/archives) which is very nice for systems having any of those on tmpfs or other non-persistent storage. This also means though that this creation is effected by the default umask, so for people with aggressive umasks like 027 the directories will be created with 750, which means all non-root users are left out, which is usually exactly what we want then this umask is set, but the cache and lib directories contain public knowledge. There isn't any need to protect them from viewers and they render apt completely useless if not readable.
2014-11-18create directory for extended_states if neededDavid Kalnischkies
Unlikely perhaps, but there is no guarantee that the directory we want to drop the file into actually exists, so create it if we must.
2014-11-10allow options between command and -- on commandlineDavid Kalnischkies
This used to work before we implemented a stricter commandline parser and e.g. the dd-schroot-cmd command constructs commandlines like this. Reported-By: Helmut Grohne
2014-11-10deprecate the Section member from package structDavid Kalnischkies
A version belongs to a section and has hence a section member of its own. A package on the other hand can have multiple versions from different sections. This was "solved" by using the section which was parsed first as order of sources.list defines, but that is obviously a horribly unpredictable thing. Users are way better of with the Section() as returned by the version they are dealing with. It is likely the same for all versions of a package, but in the few cases it isn't, it is important (like packages moving from main/* to contrib/* or into oldlibs …). Backport of 7a66977 which actually instantly removes the member.
2014-11-10use 'best' hash for source authenticationDavid Kalnischkies
Collect all hashes we can get from the source record and put them into a HashStringList so that 'apt-get source' can use it instead of using always the MD5sum. We therefore also deprecate the MD5 struct member in favor of the list. While at it, the parsing of the Files is enhanced so that records which miss "Files" (aka MD5 checksums) are still searched for other checksums as they include just as much data, just not with a nice and catchy name. This is a cherry-pick of 1262d35 with some dirty tricks to preserve ABI. LP: 1098738
2014-11-10add 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. The cherry-pick here the un-const-ification of HashType() compared to f4c3850ea335545e297504941dc8c7a8f1c83358. The point of this commit is adding infrastructure for the next one. All by itself, it just adds new symbols. Git-Dch: Ignore
2014-11-09use pkgAcquire::GetLock instead of own codeDavid Kalnischkies
Do the same with less code in apt-get. This especially ensures that the lock file (and the parent directories) exist before we are trying to lock. It also means that clean now creates the directories if they are missing so we returned to a proper clean state now. Git-Dch: Ignore
2014-11-09streamline display of --help in all toolsDavid Kalnischkies
By convention, if I run a tool with --help or --version I expect it to exit successfully with the usage, while if I do call it wrong (like without any parameters) I expect the usage message shown with a non-zero exit.
2014-11-08fix variable naming typo used in debug outputDavid Kalnischkies
Git-Dch: Ignore
2014-11-08restore ABI of pkgTagSectionDavid Kalnischkies
We have a d-pointer available here, so go ahead and use it which also helps in hidding some dirty details here. The "hard" part is keeping the abi for the inlined methods so that they don't break – at least not more than before as much of the point beside a speedup is support for more than 256 fields in a single section.
2014-11-08revert useless abibreak in sourceslist.hDavid Kalnischkies
No idea what the intension was here, but it seems like a leftover from a workover which happened to be done differently later. As it doesn't provide anything at the moment we just revert to the previous abi here. Git-Dch: Ignore
2014-11-08guard pkg/grp hashtable creation changesDavid Kalnischkies
The change itself is no problem ABI wise, but the remove of the old undynamic hashtables is, so we bring it back for older abis and happily use the now available free space to backport more recent additions like the dynamic hashtable itself. Git-Dch: Ignore
2014-11-08explicit overload methods instead of adding parametersDavid Kalnischkies
Adding a new parameter (with a default) is an ABI break, but you can overload a method, which is "just" an API break for everyone doing references to this method (aka: nobody). Git-Dch: Ignore
2014-11-08guard const-ification API changesDavid Kalnischkies
Git-Dch: Ignore
2014-11-08guard ABI changes for SourcePkg/Ver in pkgCacheDavid Kalnischkies
Git-Dch: Ignore
2014-11-08mark internal interfaces as hiddenDavid Kalnischkies
We have a bunch of classes which are of no use for the outside world, but were still exported and so needed to preserve ABI/API. Marking them as hidden to not export them any longer is a big API break in theory, but in practice nobody is using them – as if they would its a bug.
2014-11-08better non-virtual metaIndex.LocalFileName() implementationDavid Kalnischkies
We can't add a new virtual method without breaking the ABI, but we can freely add new methods, so for older ABIs we just implement this method with a dynamic_cast, so that clients can be more ignorant about the API here and especially don't need to pull a very dirty trick by assuming internal knowledge (like apt-get did here).
2014-11-08use a abi version check similar to the gcc checkDavid 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
2014-11-08(error) va_list 'args' was opened but not closed by va_end()David Kalnischkies
The manpage of va_start and co additionally says: On some systems, va_end contains a closing '}' matching a '{' in va_start, so that both macros must occur in the same function, and in a way that allows this. So instead of return/breaking instantly, we save the return, make a proper turndown with va_end in all cases and only end after that. Reported-By: cppcheck Git-Dch: Ignore
2014-11-08reenable patchsize limit option for pdiffsDavid Kalnischkies
One word: "doh!" Commit f6d4ab9ad8a2cfe52737ab620dd252cf8ceec43d disabled the check to prevent apt from downloading bigger patches than the index it tries to patch. Happens rarly of course, but still. Detected by scan-build complaining about a dead assignment. To make up for the mistake a test is included as well.
2014-11-06Merge remote-tracking branch 'mvo/feature/no-more-acquire-guessing' into ↵Michael Vogt
debian/experimental
2014-11-06Merge remote-tracking branch 'upstream/debian/experimental' into ↵Michael Vogt
feature/no-more-acquire-guessing Conflicts: apt-pkg/acquire-item.cc
2014-11-05Bump ABI to 4.15Michael Vogt
2014-11-05prepare ABI for feature/socketpairMichael Vogt
2014-11-05Merge branch 'debian/sid' into debian/experimentalMichael Vogt
Conflicts: debian/changelog
2014-11-05apt-pkg/deb/debindexfile.{cc,h}: kill GetIndexes()Michael Vogt
2014-11-04apt-pkg/acquire-item.h: make friend declaration compatible with older gccMichael Vogt
2014-11-04Call "Dequeue()" for items in AbortTransaction() to fix raceMichael Vogt
The pkgAcquire::Run() code works uses a while(ToFetch > 0) loop over the items queued for fetching. This means that we need to Deqeueue the item if we call AbortTransaction() to avoid a hang.