Jakob Unterwurzacher
b97268c948
configfile: bake the "Creator" gocryptfs version into the file
...
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).
2016-06-05 11:40:13 +02:00
Jakob Unterwurzacher
a602e798b1
fusefrontend: report an error if all files in a directory were invalid
...
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.
2016-06-04 16:39:27 +02:00
Jakob Unterwurzacher
80b027f830
nametransform, main: better error messages
2016-06-01 20:07:43 +02:00
Jakob Unterwurzacher
5dd9576a11
fusefrontend: replace unreliable "fd < 0" check
...
... 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.
2016-05-30 09:36:06 +02:00
Jakob Unterwurzacher
5e9953ec27
toggledlog: wpanic: use Logger.Panic instead of naked panic
...
This makes sure the panic message also ends up in syslog
(if enabled).
2016-05-30 09:26:59 +02:00
Jakob Unterwurzacher
1648c54adb
fusefrontend: use sync.Once for one-time warnings
...
Using a simple boolean was racy (which was harmless
in this case) and non-idomatic.
2016-05-29 22:50:03 +02:00
Jakob Unterwurzacher
fd53dfd2ad
fusefronted: check Fstat return value on file create
...
The Fstat call should never fail, but still, if it does return an error
it should be handled properly.
2016-05-29 22:43:48 +02:00
Jakob Unterwurzacher
77813bdc13
fusefrontend: simplify wlockMap
...
mapMutex can be anonymous and using an RWMutex is overkill
because the lock protects very short sections.
2016-05-29 22:40:05 +02:00
Jakob Unterwurzacher
4c0cb37c50
fusefrontend: remove unused "forgotten" variable
...
The functionality has long been replaced by the fd < 0
check.
2016-05-29 13:46:47 +02:00
Jakob Unterwurzacher
888e147cd8
stupidgcm: add benchmark.bash wrapper
...
Add a simple bash wrapper to make it easier to run the GCM
benchmarks.
2016-05-22 15:49:09 +02:00
David Gnedt
a93bcabe9c
Encrypt path in statfs() calls
...
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
2016-05-12 23:24:39 +02:00
Jakob Unterwurzacher
4ad9d4e444
prefer_openssl: add amd64 constraint
...
Optimized assembly versions for Go GCM are only available
on amd64.
2016-05-12 09:50:36 +02:00
Jakob Unterwurzacher
49b597f07c
prefer_openssl: autodetect whether to use OpenSSL or Go GCM
...
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.
2016-05-12 00:42:42 +02:00
Jakob Unterwurzacher
ba7c798418
fusefrontend: fix panic due to concurrently unregistered wlock
...
Commit 730291feab
2016-05-08 23:21:20 +02:00
Jakob Unterwurzacher
730291feab
fusefrontend: fix wlock memory leak
...
The write lock was not freed on release, causing a slow memory leak.
This was noticed by running extractloop.bash for 10 hours.
2016-05-05 13:38:39 +02:00
Jakob Unterwurzacher
cf29ce3762
stupidgcm: set dummy locking callback.
...
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.
2016-05-05 00:09:08 +02:00
Jakob Unterwurzacher
906172938a
stupidgcm: skip tests on Go 1.4 and older
...
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.
2016-05-05 00:09:08 +02:00
Jakob Unterwurzacher
b4d45554f2
Revert "stupidgcm: print openssl error stack before panicing"
...
This did not help in debugging the openssl <= 1.0.1c issue at all
and makes the code more complex. Keep it simple.
2016-05-05 00:09:08 +02:00
Jakob Unterwurzacher
66156181ee
cryptocore: support Go 1.4 in tests
2016-05-05 00:09:08 +02:00
Jakob Unterwurzacher
508a949d9d
stupidgcm: reorder calls to support openssl <= 1.0.1c
...
This fixes the test failures on Travis CI.
Quoting from 07a4ff79d2
2016-05-05 00:08:25 +02:00
Jakob Unterwurzacher
d0945b73d2
stupidgcm: print openssl error stack before panicing
2016-05-04 20:50:13 +02:00
Jakob Unterwurzacher
6c010c3080
stupidgcm: fix copy-paste error in panic message
...
Also, print the openssl version in Travis CI
2016-05-04 20:15:11 +02:00
Jakob Unterwurzacher
39f3a24484
stupidgcm: completely replace spacemonkeygo/openssl
2016-05-04 19:56:07 +02:00
Jakob Unterwurzacher
c92190bf07
stupidgcm: add our own thin wrapper around openssl gcm
...
...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 )
2016-05-04 19:56:07 +02:00
Jakob Unterwurzacher
1bb907b38e
cryptocore: add API tests
2016-05-04 19:56:07 +02:00
Jakob Unterwurzacher
4d79fba285
prelloc: warn and continue if fallocate(2) is not supported
...
This makes gocryptfs work at all on ZFS.
See https://github.com/rfjakob/gocryptfs/issues/22 .
2016-04-20 22:47:31 +02:00
Jakob Unterwurzacher
bd5405189e
Fix "go tool vet -shadow=true" warnings
...
Among those one real bug.
2016-04-10 21:31:15 +02:00
Jakob Unterwurzacher
db72fcea41
longnames: fix fsstress failure, use dirfd
...
Using dirfd-relative operations allows safe lockless handling
of the ".name" files.
2016-04-10 21:31:08 +02:00
Jakob Unterwurzacher
63d3e51734
longnames: use symbolic constants instead of naked ints
2016-04-10 12:36:43 +02:00
Jakob Unterwurzacher
37a9b4c3ee
Enable openssl in tests to support old Go versions
...
Go 1.4 and older do not support 128-bit IVs which caused
the tests to panic.
2016-03-03 00:59:58 +01:00
Jakob Unterwurzacher
b5221c9651
Fix Go 1.4 build failure caused by a refactoring oversight
2016-03-03 00:48:32 +01:00
Jakob Unterwurzacher
653d4a619c
longnames part II: Rename, Unlink, Rmdir, Mknod, Mkdir + tests
2016-02-07 14:02:09 +01:00
Jakob Unterwurzacher
6b5d977cce
Move OpenDir to fs_dir.go
2016-02-07 11:29:54 +01:00
Jakob Unterwurzacher
3a4922b5d7
Add tests for long name creation and renaming (currently failing, obviously)
2016-02-07 10:55:13 +01:00
Jakob Unterwurzacher
e111e20649
longnames part I: Create and OpenDir work with long filenames > 176 bytes
...
Todo: Rename, Unlink, Rmdir, Mknod, Mkdir
2016-02-06 22:54:14 +01:00
Jakob Unterwurzacher
6b27b6a1e7
Move dirIVCache to its own file
2016-02-06 20:27:28 +01:00
Jakob Unterwurzacher
c74772bc8d
Run go fmt
2016-02-06 20:23:36 +01:00
Jakob Unterwurzacher
b0ee5258b1
Fix tests - were broken by the refactoring
2016-02-06 20:22:45 +01:00
Jakob Unterwurzacher
9078a77850
Move pathfs_frontend to internal/fusefrontend
...
"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
2016-02-06 19:27:59 +01:00
Jakob Unterwurzacher
2b8cbd9441
Major refactoring: Split up "cryptfs" into several internal packages
...
"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
2016-02-06 19:22:35 +01:00
