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2016-11-01fusefronted: expire dir IV cache after one secondJakob Unterwurzacher
The Back In Time backup tool (https://github.com/bit-team/backintime) wants to write directly into the ciphertext dir. This may cause the cached directory IV to become out-of-date. Having an expiry time limits the inconstency to one second, like attr_timeout does for the kernel getattr cache.
2016-11-01fusefrontend: refactor dirIVCacheJakob Unterwurzacher
Simplify the code a bit.
2016-10-24Fix misspellingsJakob Unterwurzacher
Close https://github.com/rfjakob/gocryptfs/issues/54
2016-10-07nametransform: better error code on invalid diriv lengthJakob Unterwurzacher
go-fuse translates errors unknown to it into "function not implemented", which is wrong in this case.
2016-10-04lint fixesValient Gough
2016-09-25nametransform: downgrade invalid length warningJakob Unterwurzacher
This happens all the time in reverse mode when somebody stats an encrypted symlink target.
2016-09-25nametransform: delete unused function DecryptPathDirIVJakob Unterwurzacher
2016-09-25reverse: add symlink encryption and Readlink supportJakob Unterwurzacher
2016-09-25reverse: resolve long names in Open and GetAttrJakob Unterwurzacher
The last patch added functionality for generating gocryptfs.longname.* files, this patch adds support for mapping them back to the full filenames. Note that resolving a long name needs a full readdir. A cache will be implemented later on to improve performance.
2016-09-25nametransform: implement ReadDirIV without OpenatJakob Unterwurzacher
As ReadDirIV operates on a path anyway, opening the directory has no clear safety advantage w.r.t. concurrent renames. If the backing directory is a reverse-mounted gocryptfs filesystem, each directory open is an OPENDIR, and this causes a full directory read! This patch improves the "ls -lR" performance of an DIR --> gocryptfs-reverse --> gocryptfs chain by a factor of ~10. OPENDIR counts for ls -lR: Before 15570 After 2745
2016-09-25nametransform: return EINVAL on invalid paddingJakob Unterwurzacher
With the generic fmt.Errorf we trigger a warning from go-fuse: 2016/09/21 21:42:31 can't convert error type: Invalid padding
2016-09-25nametransform: export DirIVLen constantJakob Unterwurzacher
Will be needed by reverse mode.
2016-07-06Add godoc comments to all internal packagesJakob Unterwurzacher
2016-07-03syscallcompat: OSX: add Unlinkat wrapperJakob Unterwurzacher
Also, replace remaining naked syscall.Openat calls.
2016-07-03nametransform: hide detailed padding error behind the debug flagJakob Unterwurzacher
unPad16 returns detailed errors including the position of the incorrect bytes. Kill a possible padding oracle by lumping everything into a generic error. The detailed error is only logged if debug is active.
2016-06-23Drop deprecated "-emenames" optionJakob Unterwurzacher
The EMENames feature flag is already mandatory, dropping the command line option is the final step.
2016-06-23nametransform: drop unused noiv functionsJakob Unterwurzacher
As DirIV is now mandatory there is no user for the noiv functions.
2016-06-16Rename nametransform, contentenc source filesJakob Unterwurzacher
Let's have shorter names, and merge *_api.go into the "main" file. No code changes.
2016-06-15Rename internal "toggledlog" package to "tlog"Jakob Unterwurzacher
tlog is used heavily everywhere and deserves a shorter name. Renamed using sed magic, without any manual rework: find * -type f -exec sed -i 's/toggledlog/tlog/g' {} +
2016-06-01nametransform, main: better error messagesJakob Unterwurzacher
2016-04-10longnames: fix fsstress failure, use dirfdJakob Unterwurzacher
Using dirfd-relative operations allows safe lockless handling of the ".name" files.
2016-04-10longnames: use symbolic constants instead of naked intsJakob Unterwurzacher
2016-03-03Enable openssl in tests to support old Go versionsJakob Unterwurzacher
Go 1.4 and older do not support 128-bit IVs which caused the tests to panic.
2016-02-07longnames part II: Rename, Unlink, Rmdir, Mknod, Mkdir + testsv0.9-rc1Jakob Unterwurzacher
2016-02-06longnames part I: Create and OpenDir work with long filenames > 176 bytesJakob Unterwurzacher
Todo: Rename, Unlink, Rmdir, Mknod, Mkdir
2016-02-06Move dirIVCache to its own fileJakob Unterwurzacher
2016-02-06Run go fmtJakob Unterwurzacher
2016-02-06Fix tests - were broken by the refactoringJakob Unterwurzacher
2016-02-06Major refactoring: Split up "cryptfs" into several internal packagesJakob Unterwurzacher
"git status" for reference: deleted: cryptfs/cryptfs.go deleted: cryptfs/names_core.go modified: integration_tests/cli_test.go modified: integration_tests/helpers.go renamed: cryptfs/config_file.go -> internal/configfile/config_file.go renamed: cryptfs/config_test.go -> internal/configfile/config_test.go renamed: cryptfs/config_test/.gitignore -> internal/configfile/config_test/.gitignore renamed: cryptfs/config_test/PlaintextNames.conf -> internal/configfile/config_test/PlaintextNames.conf renamed: cryptfs/config_test/StrangeFeature.conf -> internal/configfile/config_test/StrangeFeature.conf renamed: cryptfs/config_test/v1.conf -> internal/configfile/config_test/v1.conf renamed: cryptfs/config_test/v2.conf -> internal/configfile/config_test/v2.conf renamed: cryptfs/kdf.go -> internal/configfile/kdf.go renamed: cryptfs/kdf_test.go -> internal/configfile/kdf_test.go renamed: cryptfs/cryptfs_content.go -> internal/contentenc/content.go new file: internal/contentenc/content_api.go renamed: cryptfs/content_test.go -> internal/contentenc/content_test.go renamed: cryptfs/file_header.go -> internal/contentenc/file_header.go renamed: cryptfs/intrablock.go -> internal/contentenc/intrablock.go renamed: cryptfs/address_translation.go -> internal/contentenc/offsets.go new file: internal/cryptocore/crypto_api.go renamed: cryptfs/gcm_go1.4.go -> internal/cryptocore/gcm_go1.4.go renamed: cryptfs/gcm_go1.5.go -> internal/cryptocore/gcm_go1.5.go renamed: cryptfs/nonce.go -> internal/cryptocore/nonce.go renamed: cryptfs/openssl_aead.go -> internal/cryptocore/openssl_aead.go renamed: cryptfs/openssl_benchmark.bash -> internal/cryptocore/openssl_benchmark.bash renamed: cryptfs/openssl_test.go -> internal/cryptocore/openssl_test.go new file: internal/nametransform/name_api.go new file: internal/nametransform/names_core.go renamed: cryptfs/names_diriv.go -> internal/nametransform/names_diriv.go renamed: cryptfs/names_noiv.go -> internal/nametransform/names_noiv.go renamed: cryptfs/names_test.go -> internal/nametransform/names_test.go new file: internal/nametransform/pad16.go renamed: cryptfs/log.go -> internal/toggledlog/log.go renamed: cryptfs/log_go1.4.go -> internal/toggledlog/log_go1.4.go renamed: cryptfs/log_go1.5.go -> internal/toggledlog/log_go1.5.go modified: main.go modified: masterkey.go modified: pathfs_frontend/file.go modified: pathfs_frontend/file_holes.go modified: pathfs_frontend/fs.go modified: pathfs_frontend/fs_dir.go modified: pathfs_frontend/names.go modified: test.bash
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