Commit Graph

514 Commits

Author SHA1 Message Date
Jakob Unterwurzacher 9ad49088fa main: add explicit exit after forkChild
Trying to make it more obvious what is happening.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher d9db75ebd2 main: factor out cli arg parsing
The main function has gotten way too big.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 3d59c7dd6a reverse: add gocryptfs.conf passthrough 2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 1932248446 reverse: get rid of debug message 2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher ce22ab36e1 reverse: gocryptfs.diriv content was generated from wrong path
Should be derived from the directory name only.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 7faa267bd4 reverse: rename readFile to clearer readBackingFile
Also refactor the header generation for nicer code.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher be9dfe3a89 reverse: implement dynamic diriv
Introduce a unique per-directory diriv that is generated
by hashing the encrypted directory path.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 10f38e8870 reverse: generate file header for Read()
Also create virtual gocryptfs.diriv entries (no content yet).
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher ac1221395e nametransform: export DirIVLen constant
Will be needed by reverse mode.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher e42ab3908d reverse: print value in file offset panic 2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher a34b447ad1 reverse: let the kernel enforce read-only mode
... and print a warning that reverse mode is experimental
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 777eb8e62f reverse: rename types to reverseXYZ
...to prevent confusion with the forward variants.

FS   -> reverseFS
file -> reverseFile

Also add an incomplete read implementation.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 5931eea387 contentenc: add helpers for reverse mode
Add the reverse variant of DecryptBlocks etc:

* EncryptBlocks
* JointPlaintextRange
* ExplodeCipherRange
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 1d4c6288f2 main: initial support for reverse mode 2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 1d62086742 conentenc: handle zero-sized files in PlainSizeToCipherSize
Previously caused an integer underflow.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher 9237b4f53e reverse: add skeleton
Compiles but does not do much else.
2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher f6d4d240e6 tests: skip the nanosecond compare for now 2016-09-25 16:42:29 +02:00
Jakob Unterwurzacher fca1b82417 fusefrontend: relay Utimens to go-fuse
Commit af5441dcd9 has caused a
regression ( https://github.com/rfjakob/gocryptfs/issues/35 )
that is fixed by this commit.

The go-fuse library by now has all the syscall wrappers in
place to correctly handle Utimens, also for symlinks.

Instead of duplicating the effort here just call into go-fuse.

Closes #35
2016-09-25 16:30:29 +02:00
Jakob Unterwurzacher 8f1e51789d tests: set the times on a symlink
This currently fails as reported in
https://github.com/rfjakob/gocryptfs/issues/35 .

Also remove the spurious sleep in the test.
2016-09-25 16:17:26 +02:00
Jakob Unterwurzacher af5441dcd9 fusefrontend: use NsecToTimespec() for Utimens
This fixes a build problem on 32-bit hosts:

  internal/fusefrontend/file.go:400: cannot use a.Unix() (type int64) as
  type int32 in assignment
  internal/fusefrontend/file.go:406: cannot use m.Unix() (type int64) as
  type int32 in assignment

It also enables full nanosecond timestamps for dates
after 1970.
2016-08-09 22:18:46 +02:00
Jakob Unterwurzacher fc0de96763 tests: add TestUtimesNano
Make sure setting nanoseconds works by path and fd.
2016-08-09 22:10:25 +02:00
Jakob Unterwurzacher 7395b8e990 cryptocore: comment why 96-bit IVs are still supported 2016-07-31 13:36:38 +02:00
Jakob Unterwurzacher 02aab5d21f Drop obsolete .drone.yml
Drone CI may make sense in the future when I set up a private
instance that supports FUSE, but for now it provides no advantages
to Travis CI.
2016-07-21 21:33:10 +02:00
Jakob Unterwurzacher 2e519b9609 Update README for v1.0 2016-07-17 12:19:50 +02:00
Jakob Unterwurzacher 0a3225b1eb tests: add RSS tracking to extractloop
This obsoletes loopback-mem.bash.
2016-07-16 21:20:54 +02:00
Jakob Unterwurzacher 6b50f2debc tests: factor out fs-agnostic benchmark script
"canonical-benchmarks.bash TESTDIR"
can now be used on any filesystem.
2016-07-16 18:08:01 +02:00
Jakob Unterwurzacher d3940c6263 tests: add maxlen.bash helper
Simple script that finds out the maximum supported filename
length.
2016-07-16 14:10:17 +02:00
Jakob Unterwurzacher e98c51afd6 tests: add loopback-mem script
Helps to find memory leaks in go-fuse's loopback, which
gocryptfs builds upon.
2016-07-14 09:26:00 +02:00
Jakob Unterwurzacher 09c16ed2a7 tests: extractloop: add loopback support
loopback is an example app that comes with the go-fuse lib.
It uses all the same APIs as gocryptfs, minus the encryption.
2016-07-12 08:30:29 +02:00
Jakob Unterwurzacher cf742f4e8b tests: add encfs support to benchmark.bash and extractloop.bash
Pass "-encfs" to test encfs instead of gocryptfs.
2016-07-11 22:10:41 +02:00
Jakob Unterwurzacher 63def5df5d tests: matrix: print name in verbose output 2016-07-11 21:42:40 +02:00
Jakob Unterwurzacher df17f1d702 tests: add verbose output when unmounting 2016-07-11 20:41:53 +02:00
Jakob Unterwurzacher 1c54fcd04b tests: use unmount wrapper in ResetTmpDir
This should make it work on OSX.

Also, split unmount into two functions. Depending on what you
want,

* UnmountErr returns the resulting error
* UnmountPanic panics if the error was not nil
2016-07-11 20:41:16 +02:00
rfjakob 621cbad5e1 README: Fix ticket #15 copy-paste errors
Thanks to @spaghetti2514 for noticing.
2016-07-10 12:16:55 +02:00
Jakob Unterwurzacher e8a234f658 Add godoc comments to all internal packages 2016-07-06 21:51:25 +02:00
Jakob Unterwurzacher a36b4c1b43 README: update for 1.0-rc1 2016-07-06 21:26:57 +02:00
Jakob Unterwurzacher 7f3ede473e tests: fix shadow warning
"go tool vet -shadow=true" complained about the md5 package
being shadowed by variables called "md5".
Fix by using the Md5hex helper and dropping the md5 import.
2016-07-06 21:06:42 +02:00
Jakob Unterwurzacher 9d17fdb206 tests: OSX: cast st.Blksize to int64
On Linux, Blksize is already int64. But on OSX
it is int32 and that caused a compile failure.

https://github.com/rfjakob/gocryptfs/issues/15
2016-07-04 08:22:05 +02:00
Jakob Unterwurzacher 603e144f5e prefer_openssl: OSX: get rid of /proc warnings
OSX does not have /proc/cpuinfo, but let's not warn
the user about it.
2016-07-04 08:19:26 +02:00
Jakob Unterwurzacher 52655843ab stupidgcm: use __builtin_trap()
[...]/stupidgcm/locking.go:16:2:
  warning: indirection of non-volatile null pointer will
  be deleted, not trap [-Wnull-dereference]
  [...]/stupidgcm/locking.go:16:2:
  note: consider using __builtin_trap() or qualifying
  pointer with 'volatile'

https://github.com/rfjakob/gocryptfs/issues/15
2016-07-04 08:14:24 +02:00
Jakob Unterwurzacher 77e7abdf8c XFSTESTS.md: add output from latest fuse-xfstests
fuse-xfstests is regularily rebased to xfstests master.
2016-07-03 22:15:59 +02:00
Jakob Unterwurzacher 741bf0726e syscallcompat: OSX: add Mknodat wrapper
Protip: find naked *at syscalls using:

   git grep "syscall." | grep "at(" | grep -v syscallcompat
2016-07-03 20:22:22 +02:00
Jakob Unterwurzacher d8524c7369 syscallcompat: OSX: add Unlinkat wrapper
Also, replace remaining naked syscall.Openat calls.
2016-07-03 20:17:40 +02:00
Jakob Unterwurzacher 1d7728959c fusefrontend: downgrade Renameat log message to debug 2016-07-03 20:08:09 +02:00
Jakob Unterwurzacher 79851bf6cc syscallcompat: OSX: add Renamat wrapper
Adds a poor man's renameat implementation for OSX.
2016-07-03 20:05:32 +02:00
Jakob Unterwurzacher 9b725c15cf syscallcompat: OSX: add Fallocate and Openat wrappers
...and convert all calls to syscall.{Fallocate,Openat}
to syscallcompat .

Both syscalls are not available on OSX. We emulate Openat and just
return EOPNOTSUPP for Fallocate.
2016-07-03 19:18:34 +02:00
Jakob Unterwurzacher c9a472c12f syscallcompat: move syscall wrapper to their own package
We will get more of them as OSX also lacks support for openat.
2016-07-03 17:51:40 +02:00
Jakob Unterwurzacher 0d5d6fc99b main: bake build date into version string
$ gocryptfs -version
gocryptfs v0.12-36-ge021b9d-dirty; go-fuse a4c968c; 2016-07-03 go1.6.2
2016-07-03 16:50:52 +02:00
Jakob Unterwurzacher e021b9d00c main: yellow text for masterkey and zerokey warnings
Also, mention that the shell may save the command line into the
history and reduce "ps -auxwww" to "ps ax" (that's all you need).
2016-07-03 15:37:47 +02:00
Jakob Unterwurzacher e574a6cc1f nametransform: hide detailed padding error behind the debug flag
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.
2016-07-03 15:35:58 +02:00