hardcoresushi/libcryfs
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884 Commits

Author SHA1 Message Date
Sebastian Messmer
7a5b23db13 Remember hashed filesystem key in local state so attacker can't replace it 2017-09-30 08:49:24 +01:00
Gerrit Toehgiono
a05e4733ef Fixes compilation on FreeBSD 11.1 (RELEASE branch) (#173) 
* get_total_memory.cpp: include types.h before sysctl.h (fixes size_t unknown on FreeBSD

* Include fuse.h also in FreeBSD

* update 'defined'-style (src/spp/fuse/params.h)
 2017-09-28 10:18:02 -07:00
Sebastian Messmer
49719e3e66 Use config file instead of dir for basedir metadata 2017-09-28 08:19:30 +01:00
Sebastian Messmer
aace4c2f13 Check that filesystem id didn't change since we loaded the basedir the last time 2017-09-28 07:41:08 +01:00
David Steele
18788bc3f8 Patch get_total_memory() for freebsd compatibility (#172) 2017-09-25 13:55:15 -07:00
Sebastian Messmer
26b3b366c9 Use local state file instead of myClientId file 2017-09-23 20:17:05 +01:00
Sebastian Messmer
73aab31ade Make LoopThread noncopyable 2017-09-19 20:16:47 +01:00
Sebastian Messmer
556d9cf452 New default block size: 16KB 2017-09-19 11:20:28 +01:00
Sebastian Messmer
9fdefaa4e0 Remove BlockStoreWithRandomKeys 2017-09-18 20:42:07 +01:00
Sebastian Messmer
a6592ae299 Fix clang build broken in last commit 2017-09-17 02:24:36 +01:00
Sebastian Messmer
5458af7c52 Rename blockstore::Key -> blockstore::BlockId 2017-09-17 02:07:27 +01:00
Sebastian Messmer
10e11f67e2 Make blockstore::Key more typesafe 2017-09-17 00:10:53 +01:00
Sebastian Messmer
f7c089ba47 Fix clang 5.0 compiler warnings 2017-09-16 17:45:15 +01:00
Sebastian Messmer
e4acf4e9a8 Merge from develop 2017-09-16 17:14:51 +01:00
Sebastian Messmer
5299be5dda Wire through the missingBlockIsIntegrityViolation setting 2017-09-16 16:49:33 +01:00
Sebastian Messmer
b6ce7c3ae4 Allow disabling integrity checks on command line 2017-09-16 16:18:53 +01:00
Sebastian Messmer
666d24e7b8 Fix no-compatibility mode 2017-09-16 00:52:23 +01:00
Sebastian Messmer
f6b6875bb2 Rename VersionCountingBlockStore -> IntegrityBlockStore 2017-09-16 00:18:58 +01:00
Sebastian Messmer
00d098952b Storing block ID is job of VersionCountingBlockStore, not EncryptedBlockStore. 2017-09-16 00:09:15 +01:00
Sebastian Messmer
82587ca185 Workaround bug in gcc 6/7 for building unit tests 2017-09-12 22:12:01 +01:00
Sebastian Messmer
0af7dea095 Fix tests on osx 2017-09-12 00:58:33 +01:00
Sebastian Messmer
0ec081750e Fix test cases 2017-09-11 14:37:06 +01:00
Sebastian Messmer
9516d4facc Further compatibility fixes for GCC 4.8 2017-09-10 14:27:14 +01:00
Sebastian Messmer
a584cddb86 Merge branch 'next' of github.com:cryfs/cryfs into next 2017-09-09 14:45:30 +01:00
Sebastian Messmer
fe1383b4ff Fix build 2017-09-09 14:44:01 +01:00
Sebastian Messmer
51e9ac39d2 GCC bug workaround 2017-09-09 14:40:34 +01:00
Christoph Gysin
d963424630 fix pessimizing move warnings (#170) 
This fixes warnings emitted by clang:

src/cpp-utils/data/Data.cpp:37:10:
warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move]
        return std::move(result);
               ^
src/blockstore/implementations/ondisk/OnDiskBlockStore.cpp:61:17:
warning: moving a temporary object prevents copy elision [-Wpessimizing-move]
        auto result = std::move(OnDiskBlock::CreateOnDisk(_rootdir, key, std::move(data)));
                      ^
src/blobstore/implementations/onblocks/datatreestore/DataTree.cpp:249:10:
warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move]
        return std::move(chain);
               ^

See also:
http://vmpstr.blogspot.ch/2015/12/redundant-stdmove.html
 2017-09-06 17:26:27 +01:00
Mouse
977a381740 Fix compatibility with Crypto++ 6.0 (#169) 
* Fix compatibility with Crypto++ 6.0 in a newly-introduced file EncryptedBlockStore2.h

* Convert fix to how it was done in "develop" branch
 2017-09-05 21:51:24 +01:00
Sebastian Messmer
7e56c46bb0 CryFS tells the operating system to not swap the encryption key to the disk (note: this is best-effort and cannot be guaranteed. Hibernation, for example, will still write the encryption key to the disk) 2017-09-05 00:43:43 +01:00
Sebastian Messmer
3aa8b74fd9 Fix fsstat on osx 2017-08-31 23:40:25 +01:00
Sebastian Messmer
4da81fdbef Fix build on Mac OS X 2017-08-24 21:28:59 +01:00
Sebastian Messmer
fc21b0882a Fix relatime performance 2017-08-24 08:19:16 +01:00
Sebastian Messmer
5fb4098c8b Implement relatime behavior for performance 2017-08-23 20:32:36 +01:00
Sebastian Messmer
679b14a4d8 * Allow mounting using system mount tool and /etc/fstab (e.g. mount -t fuse.cryfs basedir mountdir) 
* Pass fuse options directly to cryfs (i.e. 'cryfs basedir mountdir -o allow_other' instead of 'cryfs basedir mountdir -- -o allow_other')
 2017-08-23 09:56:03 +01:00
Sebastian Messmer
ffc0b5195c - Fix CachingBlockStore2_Specific test cases to actually test CachingBlockStore2 
- Remove old CachingBlockStore
 2017-08-22 00:03:04 +01:00
Sebastian Messmer
30cec27bd8 Improve remove handling in cache 2017-08-21 23:43:11 +01:00
Sebastian Messmer
9d298bad6c Switch to new caching block store 2017-08-21 23:11:45 +01:00
Sebastian Messmer
509bf6cc26 Fix CachingBlockStore2 and add test case for it 2017-08-21 23:09:43 +01:00
Sebastian Messmer
4add7f3d80 Start implementing new cache 2017-08-21 22:44:35 +01:00
Sebastian Messmer
a45c0bf29a Fix merge conflict 2017-08-20 01:12:28 +01:00
Sebastian Messmer
ff34049787 Merge branch 'next' into newblockstore 2017-08-19 11:54:01 +01:00
Sebastian Messmer
ade23f9b86 Merge branch 'develop' into next 2017-08-19 11:53:22 +01:00
Mouse
7abed14d63 Make compatible with the current Crypto++ master (#163) 
* Make compatible with the current Crypto++ master

* Add auto-config and build script. Not important, just a time-saver.

* Address compatibility with Crypto++ 6.0 release, while maintaining compatibility
with the older Crypto++ releases.

* Polish comments in cryptopp_byte.h. Forgot to include it to RandomGeneratorThread - fixed.

* Late at night - forgot to fix the .cpp files that used ::byte...

* Renamed auto-config-and-run script

* Added comments/description, and commented out "make check" that fails anyway

* Changed the include guard to match the rest of the .h files

* Delete build script

* Update ChangeLog.txt

* Update ChangeLog.txt
 2017-08-16 03:00:46 +01:00
Sebastian Messmer
4a602ce7a5 Remove old blockstore implementations 2017-07-20 19:32:42 -07:00
Sebastian Messmer
36c29f19cf Fix LowToHighLevelBlock 2017-07-18 16:59:48 -07:00
Sebastian Messmer
acf01ec4ff Actually wire up CryDevice to use new block stores 2017-07-18 14:49:51 -07:00
Sebastian Messmer
872c94865c Use using for shorter code 2017-07-13 02:13:13 -05:00
Sebastian Messmer
534968484c Use using for shorter code 2017-07-13 01:33:35 -05:00
Sebastian Messmer
fbcab0abcc Move stuff to .cpp files 2017-07-13 01:07:07 -05:00
Sebastian Messmer
428290fda5 Extend BlockStore2 and write a LowToHighLevelBlockStore as wrapper from BlockStore to BlockStore2 2017-07-07 16:18:09 -05:00
Sebastian Messmer
0942275d8c TODOs 2017-07-07 18:09:29 +02:00
Sebastian Messmer
d6c27e92c5 Add VersionCountingBlockStore2 to build 2017-07-07 17:35:38 +02:00
Sebastian Messmer
6bdefc56a4 Simplify VersionCountingBlockStore::store() 2017-07-07 17:21:52 +02:00
Sebastian Messmer
f22a9b2f0a Merge branch 'next' into newblockstore 2017-07-07 15:48:24 +02:00
Sebastian Messmer
ec3bec07ff Assert that unique_ref is always defined and not nullptr 2017-04-10 15:14:02 -07:00
Sebastian Messmer
317088e449 Rename unique_ref::isValid to is_valid to comply with naming scheme of other functions 2017-04-10 14:16:30 -07:00
Sebastian Messmer
d8efcbb144 Merge branch 'develop' into next 2017-04-06 01:02:13 +01:00
Sebastian Messmer
3d56b97052 Make unique_ref constructor explicit 2017-04-05 21:02:03 +01:00
Sebastian Messmer
636ed437aa Improve unique_ref tests 2017-04-05 20:48:00 +01:00
Sebastian Messmer
ed9f224f19 Further unique_ref improvements 2017-04-03 19:08:41 +01:00
Sebastian Messmer
2fb61e7c71 Further improve unique_ref 2017-04-03 15:43:27 +01:00
Sebastian Messmer
9ada10db4d Improve unique_ref 2017-04-03 14:43:32 +01:00
Sebastian Messmer
590cd92de5 Install man page 2017-03-26 14:08:47 +01:00
Sebastian Messmer
dbf54b9563 Add test cases for BlockStore2 and fix existing BlockStore2 implementations 2017-02-21 22:27:46 +00:00
Sebastian Messmer
d84e65ad76 Merge from develop 2017-02-18 13:22:43 +00:00
Sebastian Messmer
19bfe97d52 du reports correct space usage 2017-02-18 13:21:54 +00:00
Sebastian Messmer
70bfc47a2f Start implementing new blockstore 2017-02-14 08:16:38 +00:00
Sebastian Messmer
1ec5df98d6 Compile cryfs-stats executable 2017-02-14 08:15:11 +00:00
Sebastian Messmer
5350a14a4a Add stats tool to build 2017-02-11 13:28:34 +00:00
Sebastian Messmer
cab1c71cac Merge from develop 2017-02-04 19:18:00 +00:00
Sebastian Messmer
59afd50c28 Fix clang build 2017-02-04 19:17:17 +00:00
Sebastian Messmer
54e0ffce2e Merge branch 'develop' of github.com:cryfs/cryfs into develop 2017-02-04 19:03:32 +00:00
Sebastian Messmer
9a304fc52b Upgrade spdlog to 0.11.0 2017-02-04 19:03:20 +00:00
Sebastian Messmer
596d9d0426 Merge from develop 2017-02-04 14:38:14 +00:00
Sebastian Messmer
7267bb5be4 Fix buid on Mac OS X 2017-02-04 14:21:00 +00:00
Nicolas Schneider
ffc2fe8eef print defaults for cipher and blocksize in cli help (#124) 
Closes #94.
 2017-01-23 00:23:51 +00:00
Sebastian Messmer
92776fe507 Merge branch 'develop' into next 2017-01-22 21:24:46 +00:00
Sebastian Meßmer
013be34150 Remove unneeded method 2017-01-22 19:46:47 +00:00
Sebastian Messmer
af24fa5402 Merge branch 'develop' into next 2017-01-22 01:11:36 +00:00
Sebastian Messmer
bbdfc5c234 Simplify FsppNodeTest 2017-01-22 01:11:26 +00:00
Sebastian Messmer
42765c6be6 Merge from develop 2017-01-21 20:24:09 +00:00
Sebastian Messmer
e37d84a3d6 fspp::Dir, fspp::File and fspp::Symlink don't inherit from fspp::Node anymore. This allows file systems to return a generic fspp::Node instead of a concrete subclass when the operation doesn't need to know what type of node it is. 2017-01-21 19:16:35 +00:00
Sebastian Messmer
8c9cea6413 Fix nullversion recognition in gitversion 2016-12-31 16:22:57 +01:00
Sebastian Messmer
681f415272 Use curl_global_init/curl_global_cleanup for cleaner shutdown of executable 2016-10-26 13:50:20 -07:00
Sebastian Messmer
abae027538 Fix compiler error on FreeBSD 2016-10-20 10:35:29 +02:00
Sebastian Messmer
fb123f8fd0 Removed fixed TODOs 2016-10-14 12:34:42 +02:00
Sebastian Messmer
9d05b8571c Merge from develop 2016-10-13 18:30:27 +02:00
Sebastian Messmer
bd74a5b762 More detailed error reporting if key derivation fails 2016-10-02 11:01:14 +02:00
Sebastian Messmer
ce218f264a Silence a static analysis warning 2016-09-25 20:36:35 +02:00
Sebastian Messmer
58d6a454d7 Merge branch 'develop' into next 2016-09-25 11:41:33 +02:00
Sebastian Messmer
6464bfb4b7 Disable update checks in noninteractive mode 2016-09-25 11:40:01 +02:00
Sebastian Messmer
e009040264 Merge from develop 2016-09-25 02:53:35 +02:00
Sebastian Messmer
443298844e Fix test cases 2016-09-25 02:50:28 +02:00
Sebastian Messmer
b027f8c007 Merge from develop 2016-09-24 20:43:54 +02:00
Sebastian Messmer
1e9fdc9aa7 Refactor noninteractive mode. All yes/no questions are forced to define a default that will be used in noninteractive mode. 2016-09-24 20:28:56 +02:00
Sebastian Messmer
1cf52b307d Fix locking in LockPool 2016-09-24 17:02:23 +02:00
Sebastian Messmer
11a85ed29f Allow building with -DCRYFS_UPDATE_CHECKS=off, which will create an executable with disabled update checks (the alternative to disable them in the environment also still works). 2016-09-24 13:16:26 +02:00
Sebastian Messmer
1c34c88709 Remove warning that CryFS is experimental 2016-09-24 12:33:22 +02:00
Sebastian Messmer
789bfc7527 Fix warning from static analysis tool about std::moving a large CryConfig object 2016-09-24 11:42:57 +02:00
Sebastian Messmer
46a2251e9d Fix potential (although improbable) deadlock 2016-09-24 11:01:22 +02:00
Sebastian Messmer
b4a609459b When an exception escalates to main, exit with an error code 2016-09-24 09:52:19 +02:00
Sebastian Messmer
a1c3079a68 Catch exceptions from main 2016-09-24 09:51:29 +02:00
Sebastian Messmer
e30656797b Add compatibility with Crypto++ 5.6.4 2016-09-24 09:39:37 +02:00
Sebastian Messmer
46183976ee Fix missing virtual destructor and potential integer overflow 2016-09-21 20:07:20 +02:00
Sebastian Meßmer
e414f0a20f Switch to LGPL 2016-09-13 19:23:08 +02:00
Sebastian Messmer
32f06f288a Fix tree traversal and add test case for it 2016-09-07 22:25:18 +02:00
Sebastian Messmer
904e3dd7a1 Merge 2016-09-07 22:07:56 +02:00
Sebastian Messmer
ea349cf79b Fix traversal bug and add test case for it 2016-09-07 19:02:41 +02:00
Sebastian Messmer
0cbb13ffbe Compatibility with older libcurl versions 2016-08-27 13:23:25 +02:00
Sebastian Messmer
b315154f08 Merge from develop 2016-07-23 10:17:42 +02:00
Sebastian Messmer
6360d452fe Make compatible with libcurl >= 7.50 2016-07-23 09:04:50 +02:00
Sebastian Messmer
d2cecb4ecc Disable large_read fuse option, since it's not used in new fuse versions anyhow and makes problems when fuse is run in user mode linux. 2016-07-22 20:44:06 +02:00
Sebastian Messmer
a4ce49aef4 Fix unique_ref test cases 2016-07-22 14:07:06 +02:00
Sebastian Messmer
64d26c2f6e Fix compiler error on older gcc 2016-07-22 12:58:59 +02:00
Sebastian Messmer
f069733650 Fix warning on older gcc versions 2016-07-22 02:57:03 +02:00
Sebastian Messmer
e38c0f1e8b Fix isRightBorderNode when growing trees 2016-07-17 10:32:59 +02:00
Sebastian Messmer
bbdd8a548b Special case treatment for traversals until exactly the last leaf has to load the last leaf to grow it. Before this commit, we just always loaded the last traversed leaf and checked its size. Now we only do so if it's the right border leaf. This saves us loading some leaves. 2016-07-17 10:16:09 +02:00
Sebastian Messmer
b339261924 Merge branch 'next' into lessio 2016-07-16 17:14:07 +02:00
Sebastian Messmer
f6141f515b TODOs 2016-07-16 17:08:53 +02:00
Sebastian Messmer
dc40d61595 Merge branch 'next' into lessio 2016-07-16 16:47:36 +02:00
Sebastian Messmer
e3690e2f6b Add comment 2016-07-16 16:47:27 +02:00
Sebastian Messmer
9c42703c70 Merge branch 'next' into lessio 2016-07-16 16:10:03 +02:00
Sebastian Messmer
143c3b3b4f Use large reads and large write 2016-07-16 16:09:47 +02:00
Sebastian Messmer
eab7cb1df4 Implement BlockStore::overwrite(). This is the last step in ensuring that the write() call doen't have to load leaves if they're only overwritten anyhow. 2016-07-16 11:42:06 +02:00
Sebastian Messmer
eb792daefc More preparations for not loading blocks in write() calls 2016-07-15 21:06:41 +02:00
Sebastian Messmer
d80b95514e Traversal doesn't load leaves, but returns the key. This way, the write() call can (after a future commit) write to full leaves without loading them beforehand. 2016-07-15 20:12:24 +02:00
Sebastian Messmer
582917c1f5 Improve code decreasing tree depth 2016-07-15 16:23:00 +02:00
Sebastian Messmer
b1b90b8c3d Further reduce number of nodes loaded when deleting a tree and write test cases for it 2016-07-15 15:42:34 +02:00
Sebastian Messmer
c428d5642a Minimize number of Block::write() calls when creating new nodes in a traversal. Also add test cases for it. 2016-07-15 12:48:20 +02:00
Sebastian Messmer
d626349802 Finish MockBlockStore to also collect other performance metrics, and implement the standard block store tests for it. 2016-07-15 10:23:09 +02:00
Sebastian Messmer
f42e08a5f6 Fix DataTree::key() when called while traversing 2016-07-14 17:56:47 +02:00
Sebastian Messmer
6ff0839e90 Add locking to blob 2016-07-14 16:36:30 +02:00
Sebastian Messmer
457ca52eb3 Add assertions to unique_ref 2016-07-14 16:29:02 +02:00
Sebastian Messmer
7ea08fc2b0 Add test cases for removing nodes 2016-07-14 16:12:51 +02:00
Sebastian Messmer
91bf6c3647 Keep resource destructor in ParallelAccessStore under mutex 2016-07-14 15:10:52 +02:00
Sebastian Messmer
3f04a7411c If tree depth increases, and we already traversed the old tree, don't go into it again to grow its last leaf. 2016-07-14 14:23:15 +02:00
Sebastian Messmer
cbe122cb5f Add assertions 2016-07-14 13:23:36 +02:00
Sebastian Messmer
0bb6b320d4 Add asserts 2016-07-14 12:58:42 +02:00
Sebastian Messmer
0dbfdf3e2b When shrinking a tree, LeafTraverser takes care of decreasing tree depth, not DataTree anymore. This way, LeafTraverser is now responsible for increasing and decreasing depth as necessary. 2016-07-14 12:55:54 +02:00
Sebastian Messmer
35a4e42ba5 Small fixes in traversal algorithm 2016-07-14 12:38:25 +02:00
Sebastian Messmer
fce81f47ff Simplify code a bit and add assertions 2016-07-14 12:03:15 +02:00
Sebastian Messmer
9e9369b9ed Performance optimization: When removing or shrinking a tree, we don't load/read leaves anymore. Loading inner nodes is enough to get all block IDs and then we can delete the leaves from their IDs without loading them. 2016-07-13 11:27:31 +02:00
Sebastian Messmer
7a68757599 Remove unneeded subtrees when shrinking tree 2016-07-13 07:08:53 +02:00
Sebastian Messmer
cf38eb0eb3 Use tree traversal to remove data tree. 2016-07-13 00:29:36 +02:00
Sebastian Messmer
508766d2f2 Fix traversal and add test cases 2016-07-13 00:22:35 +02:00
Sebastian Messmer
845b0b5239 Use LeafTraversor for resizing blobs 2016-07-12 20:36:12 +02:00
Sebastian Messmer
a19d79361c If a tree is grown by a traversal, the tree is kept in a balanced state as long as possible during the traversal 2016-07-12 09:57:56 +02:00
Sebastian Messmer
1bf20277e4 Removed unnecessary code 2016-07-12 01:10:27 +02:00
Sebastian Messmer
58f2212043 Don't query size on traversal 2016-07-12 01:09:30 +02:00
Sebastian Messmer
582c9c1a4c Fix traversal 2016-07-12 01:04:33 +02:00
Sebastian Messmer
98b85ea8b6 Started rewriting traversal 2016-07-10 22:57:39 +02:00
Sebastian Messmer
2bc3b641aa Allow Data::FillWithZeroes on rvalue 2016-07-10 22:43:07 +02:00
Sebastian Messmer
dde89da556 Improve traverseLeaves 2016-07-10 08:38:02 +02:00
Sebastian Messmer
0d860fa4f0 Speed up block loading/storing by issuing only one read/write syscall to the base file system 2016-07-06 15:35:51 -07:00
Sebastian Messmer
7348f7c64d Add checks to Data::LoadFromFile() and Data::StoreToFile() 2016-07-06 15:28:14 -07:00
Sebastian Messmer
e85019e95b Cache value of DataTree.numLeaves(). This should make read()/write() faster. 2016-07-05 23:56:44 -07:00
Sebastian Messmer
a242076ecc Performance improvement: Allow more parallelity when getting read()/write() syscalls to the same blob 2016-07-05 23:02:59 -07:00
Sebastian Messmer
ff0ba06846 Add mutex to fix race condition 2016-06-29 16:42:43 -07:00
Sebastian Messmer
b7b5dfba2a Fix generation of new file systems 2016-06-27 22:31:06 -07:00
Sebastian Messmer
3425760daf Implement migration for old filesystems that don't have parent pointers. 2016-06-27 20:03:44 -07:00
Sebastian Messmer
bfb397f44e Tell user to not interrupt migration process 2016-06-27 20:01:02 -07:00
Sebastian Messmer
397de9372f Each blob stores a parent pointer (i.e. the ID of the directory that contains this blob). This stores the directory structure in a conflict-proof way and can be used to resolve such conflicts. 2016-06-27 18:22:13 -07:00
Sebastian Messmer
a7f13ad7c1 When creating a file system, the user can choose whether to choose missing blocks as integrity violations. 2016-06-26 23:24:32 -07:00
Sebastian Messmer
2451a8c46f Add --missing-block-is-integrity-violation option. The option doesn't have an effect yet though. 2016-06-26 22:16:44 -07:00
Sebastian Messmer
be8dffb24d MyClientId is generated outside of CryDevice to give the CryConfigCreator access to it. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
7b56706c1a Be explicit about types stored in config file 2016-06-26 22:15:52 -07:00
Sebastian Messmer
b838046246 Add a 'exclusive client' option to the config file 2016-06-26 22:15:52 -07:00
Sebastian Messmer
514dbcb6c7 ClientId is not loaded/generated inside of KnownBlockVersions, but in CryDevice. This way, CryDevice also has access to the ClientID. This is later needed to recognize whether we're in a single-client or in a multi-client setting. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
1c654305a8 In integrity violations, use individual messages saying which check exactly failed. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
f066b45954 VersionCountingBlockStore::forEachBlock() has an integrity check checking that all expected blocks are still existing. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
491b277cee In case of an integrity violation, tell the user how they can reset integrity data. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
839a511c4d When an integrity violation is detected, any further access to the file system is blocked. This ensures that the user notices the integrity violation. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
c84a230afd VersionCountingBlockStore is initialized with a flag, saying whether missing blocks are integrity errors. This flag is meant to be activated in a single-client scenario to have this additional integrity check. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
e02021ecdc Throw an IntegrityViolationError exception instead of just logging integrity violations. This makes sure the user notices. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
d306f4872e Fix merge error 2016-06-26 22:15:52 -07:00
Sebastian Messmer
fd5dd2c6e1 New way of handling block deletions: Set last-update-client-id to zero instead of increasing version number. This has the same effect (i.e. invalidates all known block versions) and it additionally allows for checking in a local list whether a block is deleted or not. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
ee1f0f4d3a Warn in migration that it might take a while 2016-06-26 22:15:52 -07:00
Sebastian Messmer
86c2144a37 Implement migration from file systems without version numbers 2016-06-26 22:15:52 -07:00
Sebastian Messmer
f9a10eea4d Fix VersionCountingBlock::resize() 2016-06-26 22:15:52 -07:00
Sebastian Messmer
473e9cc8bb Fix compiler errors 2016-06-26 22:15:52 -07:00
Sebastian Messmer
1a72d3c226 Deleting a block doesn't set the version number to MAX_UINT64, but just increases it by one. This makes sure, that if (in case of a synchronization conflict) the block is reintroduced by another client, this is accepted. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
5534b56ce3 When increasing the version number, don't only look at the version number in the block, but also at the last version number given to it by the current client. Ensure, the new version number is higher than both. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
577c697856 When a client deletes a block, it will never again accept it as a valid block. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
9c1a12c063 Fix merge 2016-06-26 22:15:52 -07:00
Sebastian Messmer
e7ac9bec57 Implement BlockStore::forEachBlock 2016-06-26 22:15:52 -07:00
Sebastian Messmer
4d1f7a46b9 * Prevent rollback to the "newest" version of a client when this version was superseded by a version from a different client. 
* Use mutex/locks to secure access to KnownBlockVersions
 2016-06-26 22:15:52 -07:00
Sebastian Messmer
263c540cd0 Make sure, ClientIdAndBlockKey.h includes all its dependencies 2016-06-26 22:15:52 -07:00
Sebastian Messmer
ea3de7360c * Block versions don't have to be globally nondecreasing, but only per client id. This solves potential synchronization conflicts in a multi-client setting. 
* Use cpputils::Serializer and cpputils::Deserializer instead of std::ifstream for storing/loading the block version list
 2016-06-26 22:15:52 -07:00
Sebastian Messmer
de692c1ee4 Store number of entries at beginning of integrity file, so loading can be faster using unordered_map::reserve() 2016-06-26 22:15:52 -07:00
Sebastian Messmer
adb10343d2 Only hash key once if key not found, i.e. use [] instead of find() and then emplace() 2016-06-26 22:15:52 -07:00
Sebastian Messmer
389273a24f Test cases use a fake home directory for their configuration, so they don't clutter the actual home directory. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
9da30e3c17 Remove redundant nullbyte 2016-06-26 22:15:52 -07:00
Sebastian Messmer
57af168cfd Store own client id into the block next to the version number. This will be used to fix synchronization conflicts where the version number on one clients progresses slower than on another client, but synchronizes later. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
a5391a854d Use VersionCountingBlockStore 2016-06-26 22:15:52 -07:00
Sebastian Messmer
13411c4e59 Integrity data from KnownBlockVersions is persisted to a file 2016-06-26 22:15:52 -07:00
Sebastian Messmer
d7f547dd47 Implement a VersionCountingBlockStore that checks that version numbers are nondecreasing. Currently, the block store is not used yet and the state is not stored over different runs of CryFS. This comes with future commits. 2016-06-26 22:15:52 -07:00
Sebastian Messmer
f4a7878e37 Compatibility with GCC 6 2016-06-26 21:26:08 -07:00
Sebastian Messmer
0a61987594 Be explicit about types stored in config file 2016-06-26 15:34:53 -07:00
Sebastian Messmer
f6a80a4651 Remove default config values for mandatory values 2016-06-26 15:26:05 -07:00
Sebastian Messmer
acedbbd0c4 Fix EncryptedBlock::resize() and add test cases for it 2016-06-23 21:20:36 -07:00