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2016-06-06configfile: warn about missing feature flagsJakob Unterwurzacher
The plan is to drop support for the oldest filesystem versions in gocryptfs v1.0. For now, we only warn the user.
2016-06-05toggledlog: convert remaing naked fmt.Print*Jakob Unterwurzacher
Several fatal errors were just printed to stdout, which meant they were invisible when running the test suite. Fix this by introducing toggledlog.Fatal and convert as follows: Fatal errors -> toggledlog.Fatal Warnings -> toggledlog.Warn Password prompts -> fmt.Fprintf
2016-06-05main: print actual error from LoadConfFile()Jakob Unterwurzacher
It may not have been a "Wrong password" after all. Also, push down disabling the warning so LoadConfFile() can warn about things that matter.
2016-06-05configfile: use map[flagIota] for feature flagsJakob Unterwurzacher
This should make things saner and more extensible. It prepares the infrastructure for "required feature flags" that will be used to deprecate old gocryptfs version.
2016-06-05configfile: bake the "Creator" gocryptfs version into the fileJakob Unterwurzacher
This field is added for the convenience of users and may help them to identify which gocryptfs version they need to mount a filesystem. The same information is essentially contained in FeatureFlags, but this is more difficult to decode for humans. It is completely ignored programmatically (also by older gocryptfs versions).
2016-06-04fusefrontend: report an error if all files in a directory were invalidJakob Unterwurzacher
Just presenting an empty directory means that the user does not know that things went wrong unless he checks the syslog or tries to delete the directory. It would be nice to report the error even if only some files were invalid. However, go-fuse does not allow returning the valid directory entries AND an error.
2016-06-01nametransform, main: better error messagesJakob Unterwurzacher
2016-05-30fusefrontend: replace unreliable "fd < 0" checkJakob Unterwurzacher
... with the "released" boolean. For some reason, the "f.fd.Fd() < 0" check did not work reliably, leading to nil pointer panics on the following wlock.lock(). The problem was discovered during fsstress testing and is unlikely to happen in normal operations. With this change, we passed 1700+ fsstress iterations.
2016-05-30toggledlog: wpanic: use Logger.Panic instead of naked panicJakob Unterwurzacher
This makes sure the panic message also ends up in syslog (if enabled).
2016-05-29fusefrontend: use sync.Once for one-time warningsJakob Unterwurzacher
Using a simple boolean was racy (which was harmless in this case) and non-idomatic.
2016-05-29fusefronted: check Fstat return value on file createJakob Unterwurzacher
The Fstat call should never fail, but still, if it does return an error it should be handled properly.
2016-05-29fusefrontend: simplify wlockMapJakob Unterwurzacher
mapMutex can be anonymous and using an RWMutex is overkill because the lock protects very short sections.
2016-05-29fusefrontend: remove unused "forgotten" variableJakob Unterwurzacher
The functionality has long been replaced by the fd < 0 check.
2016-05-22stupidgcm: add benchmark.bash wrapperJakob Unterwurzacher
Add a simple bash wrapper to make it easier to run the GCM benchmarks.
2016-05-12Encrypt path in statfs() callsDavid Gnedt
Paths in statfs() calls were not encrypted resulting in an Function not implemented error, when the unencrypted path didn't exist in the underlying (encrypted) filesystem. $ df plain/existingdir df: ‘plain/existingdir’: Function not implemented
2016-05-12prefer_openssl: add amd64 constraintJakob Unterwurzacher
Optimized assembly versions for Go GCM are only available on amd64.
2016-05-12prefer_openssl: autodetect whether to use OpenSSL or Go GCMJakob Unterwurzacher
Go GCM is faster than OpenSSL if the CPU has AES instructions and you are running Go 1.6+. The "-openssl" option now defaults to "auto". "gocryptfs -debug -version" displays the result of the autodetection. See https://github.com/rfjakob/gocryptfs/issues/23 for details and benchmarks.
2016-05-08fusefrontend: fix panic due to concurrently unregistered wlockJakob Unterwurzacher
Commit 730291feab properly freed wlock when the file descriptor is closed. However, concurrently running Write and Truncates may still want to lock it. Check if the fd has been closed first.
2016-05-05fusefrontend: fix wlock memory leakJakob Unterwurzacher
The write lock was not freed on release, causing a slow memory leak. This was noticed by running extractloop.bash for 10 hours.
2016-05-05stupidgcm: set dummy locking callback.v0.10-rc2Jakob Unterwurzacher
In general, OpenSSL is only threadsafe if you provide a locking function through CRYPTO_set_locking_callback. However, the GCM operations that stupidgcm uses never call that function. To guard against that ever changing, set a dummy locking callback that crashes the app.
2016-05-05stupidgcm: skip tests on Go 1.4 and olderJakob Unterwurzacher
Quoting from the patch: We compare against Go's built-in GCM implementation. Since stupidgcm only supports 128-bit IVs and Go only supports that from 1.5 onward, we cannot run these tests on older Go versions.
2016-05-05Revert "stupidgcm: print openssl error stack before panicing"Jakob Unterwurzacher
This did not help in debugging the openssl <= 1.0.1c issue at all and makes the code more complex. Keep it simple.
2016-05-05cryptocore: support Go 1.4 in testsJakob Unterwurzacher
2016-05-05stupidgcm: reorder calls to support openssl <= 1.0.1cJakob Unterwurzacher
This fixes the test failures on Travis CI. Quoting from https://github.com/openssl/openssl/commit/07a4ff79d23e45f1a45da717b7c1f41a5e1c7c0c /* Set expected tag value. A restriction in OpenSSL 1.0.1c and earlier * required the tag before any AAD or ciphertext */
2016-05-04stupidgcm: print openssl error stack before panicingJakob Unterwurzacher
2016-05-04stupidgcm: fix copy-paste error in panic messageJakob Unterwurzacher
Also, print the openssl version in Travis CI
2016-05-04stupidgcm: completely replace spacemonkeygo/opensslJakob Unterwurzacher
2016-05-04stupidgcm: add our own thin wrapper around openssl gcmJakob Unterwurzacher
...complete with tests and benchmark. This will allow us to get rid of the dependency to spacemonkeygo/openssl that causes problems on Arch Linux ( https://github.com/rfjakob/gocryptfs/issues/21 )
2016-05-04cryptocore: add API testsJakob Unterwurzacher
2016-04-20prelloc: warn and continue if fallocate(2) is not supportedJakob Unterwurzacher
This makes gocryptfs work at all on ZFS. See https://github.com/rfjakob/gocryptfs/issues/22 .
2016-04-10Fix "go tool vet -shadow=true" warningsJakob Unterwurzacher
Among those one real bug.
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.
2016-03-03Fix Go 1.4 build failure caused by a refactoring oversightJakob Unterwurzacher
2016-02-07longnames part II: Rename, Unlink, Rmdir, Mknod, Mkdir + testsv0.9-rc1Jakob Unterwurzacher
2016-02-07Move OpenDir to fs_dir.goJakob Unterwurzacher
2016-02-07Add tests for long name creation and renaming (currently failing, obviously)Jakob 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
2016-02-06Move pathfs_frontend to internal/fusefrontendJakob Unterwurzacher
"git status" for reference: renamed: pathfs_frontend/args.go -> internal/fusefrontend/args.go renamed: pathfs_frontend/compat_darwin.go -> internal/fusefrontend/compat_darwin.go renamed: pathfs_frontend/compat_linux.go -> internal/fusefrontend/compat_linux.go renamed: pathfs_frontend/file.go -> internal/fusefrontend/file.go renamed: pathfs_frontend/file_holes.go -> internal/fusefrontend/file_holes.go renamed: pathfs_frontend/fs.go -> internal/fusefrontend/fs.go renamed: pathfs_frontend/fs_dir.go -> internal/fusefrontend/fs_dir.go renamed: pathfs_frontend/names.go -> internal/fusefrontend/names.go renamed: pathfs_frontend/write_lock.go -> internal/fusefrontend/write_lock.go modified: main.go
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