Sebastian Messmer
41146282ca
Add test cases for tree traversal
2016-07-14 11:41:49 +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
e7268744c6
Fix compiler warning
2016-07-13 00:23:29 +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
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
30a1a3617e
Fix compiler warning in test case
2016-07-10 22:15:48 +02:00
Sebastian Messmer
e85019e95b
Cache value of DataTree.numLeaves(). This should make read()/write() faster.
2016-07-05 23:56:44 -07:00
Sebastian Messmer
2f8e8d8157
Add test case for DataTree::numLeaves after resize
2016-07-05 23:53:13 -07:00
Sebastian Messmer
3a447a7110
Add a test case to VersionCompareTest
2016-06-28 15:24:18 -07:00
Sebastian Messmer
9e1d466eee
Merge branch 'develop' into next
2016-06-28 01:38:12 -07:00
Sebastian Messmer
967b04929d
Fix compiling test cases on older gcc versions
2016-06-28 01:37:08 -07:00
Sebastian Messmer
f706e46868
Fix compiling test cases on older gcc versions
2016-06-27 22:57:31 -07:00
Sebastian Messmer
0f9aba1fc4
Fix compilation of test cases for old gcc
2016-06-27 22:39:33 -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
7bf84b1948
Add some test cases for the consistency of the generated myClientId.
2016-06-26 22:15:52 -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
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
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
2284571127
Add test cases to KnownBlockVersionsTest
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
32001d0af3
Write another integrity test case
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
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
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
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
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
da6390646e
Add test cases for command line parser when options are not given.
2016-06-26 22:15:43 -07:00
Sebastian Messmer
9358c10adf
Finish test cases for Block::resize()
2016-06-23 21:30:09 -07:00
Sebastian Messmer
acedbbd0c4
Fix EncryptedBlock::resize() and add test cases for it
2016-06-23 21:20:36 -07:00
Sebastian Messmer
e4501d51e5
Each file system gets a unique ID. This ID will later be used to store local configuration of a client for that file system.
2016-06-20 16:14:07 -07:00
Sebastian Messmer
354f72443e
Adapt test cases to new behavior from commit 2642507344
2016-06-07 12:52:06 -07:00
Sebastian Messmer
1bb38f39b4
* Fix FuseTest
...
* Refactor Fuse: shorter functions, and factor out common functionality of adding a fuse option into own method
2016-06-04 00:45:49 -07:00
Sebastian Messmer
40c64a879c
Hide fuse quirks inside the Fuse class.
...
fuse_main needs the program arguments as char ** instead of const char ** or (even better) vector<string>.
With this commit, we hide that inside the Fuse class. Everything outside handles these arguments as vector<string> and passes it as such to the Fuse class.
2016-05-09 16:07:02 -07:00
Sebastian Messmer
9a0b0a0c36
Ask before migrating an old CryFS file system to a new version.
2016-05-03 20:34:30 -07:00
Sebastian Messmer
9ed7bd0b41
Ciphertext blocks are split into subdirectories (before, all were on top level) to reduce number of files per directory. Some unix tools don't work well with directories with too many entries.
2016-04-29 12:21:02 -07:00
