hardcoresushi/libgocryptfs
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350 Commits

Author SHA1 Message Date
Jakob Unterwurzacher
04858ddd22 nametransform: check name validity on encryption 
xfstests generic/523 discovered that we allowed to set
xattrs with "/" in the name, but did not allow to read
them later.

With this change we do not allow to set them in the first
place.
 2021-06-02 14:29:48 +02:00
Jakob Unterwurzacher
0e37fbe042 tests: TestFileHoleCopy: accept +-4kB 
Failure looked like this:

--- FAIL: TestFileHoleCopy (3.73s)
    --- FAIL: TestFileHoleCopy/k81 (0.04s)
        file_holes_test.go:93: size changed: st0.Blocks=88 st2.Blocks=96
    file_holes_test.go:147: aborting further subtests

$ findholes TestFileHoleCopy.k81.1
         0 data
     36864 hole
     45056 data
     50434 hole
     50434 eof

$ findholes TestFileHoleCopy.k81.2
         0 data
     36864 hole
     45056 data
     50434 hole
     50434 eof

$ filefrag -v TestFileHoleCopy.k81.1
Filesystem type is: ef53
File size of TestFileHoleCopy.k81.1 is 50434 (13 blocks of 4096 bytes)
 ext:     logical_offset:        physical_offset: length:   expected: flags:
   0:        0..       2:   23702311..  23702313:      3:
   1:        3..       8:   20389855..  20389860:      6:   23702314:
   2:       11..      12:   23702314..  23702315:      2:   20389863: last,eof
TestFileHoleCopy.k81.1: 3 extents found

$ filefrag -v TestFileHoleCopy.k81.2
Filesystem type is: ef53
File size of TestFileHoleCopy.k81.2 is 50434 (13 blocks of 4096 bytes)
 ext:     logical_offset:        physical_offset: length:   expected: flags:
   0:        0..       2:   20389861..  20389863:      3:
   1:        3..       4:   23702316..  23702317:      2:   20389864:
   2:        5..       6:   20389864..  20389865:      2:   23702318:
   3:        7..       8:   23702318..  23702319:      2:   20389866:
   4:       11..      12:   23702320..  23702321:      2:             last,eof
TestFileHoleCopy.k81.2: 4 extents found
 2021-05-29 16:56:20 +02:00
Jakob Unterwurzacher
738a9e006a fusefrontend: rewrite Lseek SEEK_DATA / SEEK_HOLE 
In response to the discussion of the xfstests mailing list [1],
I looked at the Lseek implementation, which was naive and
did not handle all cases correctly.

The new implementation aligns the returned values to 4096 bytes
as most callers expect.

A lot of tests are added to verify that we handle all
cases correctly now.

[1]: https://www.spinics.net/lists/fstests/msg16554.html
 2021-05-29 16:05:36 +02:00
Jakob Unterwurzacher
9695f0e524 tests: add TestFileHoleCopy 
Currently fails.
 2021-05-26 13:17:56 +02:00
Jakob Unterwurzacher
629d0a5ad7 tests: re-enable TestInoReuseEvil 
Problem in go-fuse has long been fixed.
 2021-05-26 13:17:56 +02:00
Jakob Unterwurzacher
7d72baca69 tests: add TestHaveDotdot 
As discovered by xfstests generic/401 [1], during the move to
the v2 api we seem to have lost the "." and ".." directory
entries.

[1]: 4ef5b032bc/screenlog.0 (L520)
 2021-05-26 13:17:56 +02:00
Jakob Unterwurzacher
86d8336b43 Add -acl flag to enable ACL enforcement 
With test to verify that it actually works this
time: Run "make root_test".

Depends-on: https://github.com/rfjakob/gocryptfs/issues/536
Fixes: https://github.com/rfjakob/gocryptfs/issues/536
 2021-05-15 17:58:37 +02:00
Jakob Unterwurzacher
beab7004f2 tests: sharedstorage: wait 100ms longer for cache expiry 
With 1.0 seconds we see failures on Travis, example:
https://travis-ci.org/github/rfjakob/gocryptfs/builds/765648739

With 1.1 seconds it seems to always work.
 2021-04-02 20:22:26 +02:00
Jakob Unterwurzacher
a2effaae39 tests: sharedstorage: add TestStaleHardlinks 2021-03-30 15:11:28 +02:00
Jakob Unterwurzacher
d7d79aa81c Add tests/sharedstorage 
Towards better test coverage of shared backing storage
mounts.

https://github.com/rfjakob/gocryptfs/issues/525
 2021-03-21 11:10:18 +01:00
Jakob Unterwurzacher
6da2a69018 test_helpers: VerifySize: don't complain about ino mismatch 
The inode number is not stable with `-sharedstorage`.
Ignore it.

Failure was like this:

--- FAIL: TestFallocate (0.02s)
    helpers.go:229: Stat vs Fstat mismatch:
        st= {59 11543 1 33188 1026 1026 0 0 0 4096 8 {1616315569 838232716} {1616315569 838232716} {1616315569 838232716} [0 0 0]}
        st2={59 11545 1 33188 1026 1026 0 0 0 4096 8 {1616315569 838232716} {1616315569 838232716} {1616315569 838232716} [0 0 0]}
 2021-03-21 10:53:51 +01:00
Jakob Unterwurzacher
692a79461a tests: matrix: add -sharestorage to test matrix 
Currently fails like this:

=== RUN   TestRmwRace
doRead 0: corrupt block #0: cipher: message authentication failed
-wpanic turns this warning into a panic: doRead 0: corrupt block #0: cipher: message authentication failed
panic: -wpanic turns this warning into a panic: doRead 0: corrupt block #0: cipher: message authentication failed

goroutine 1293 [running]:
log.(*Logger).Panic(0xc00011c230, 0xc0003b17c8, 0x1, 0x1)
	log/log.go:224 +0xac
github.com/rfjakob/gocryptfs/internal/tlog.(*toggledLogger).Printf(0xc00007a780, 0x55a821a766a1, 0x20, 0xc0003b19f0, 0x3, 0x3)
	github.com/rfjakob/gocryptfs/internal/tlog/log.go:78 +0x1ef
github.com/rfjakob/gocryptfs/internal/fusefrontend.(*File).doRead(0xc0001ff420, 0x0, 0x0, 0x0, 0x0, 0x1000, 0x0, 0x1, 0xc000880000, 0x1020)
	github.com/rfjakob/gocryptfs/internal/fusefrontend/file.go:201 +0x8c9
github.com/rfjakob/gocryptfs/internal/fusefrontend.(*File).doWrite(0xc0001ff420, 0xc000248428, 0x10, 0x30, 0xff0, 0x3, 0x18)
	github.com/rfjakob/gocryptfs/internal/fusefrontend/file.go:291 +0xc9e
github.com/rfjakob/gocryptfs/internal/fusefrontend.(*File).Write(0xc0001ff420, 0x55a821b306a0, 0xc000fbde90, 0xc000248428, 0x10, 0x30, 0xff0, 0x7f4a00000000, 0x0)
	github.com/rfjakob/gocryptfs/internal/fusefrontend/file.go:378 +0x25e
github.com/hanwen/go-fuse/v2/fs.(*rawBridge).Write(0xc000168140, 0xc000096000, 0xc0002483d8, 0xc000248428, 0x10, 0x30, 0x55a821ad40e0)
	github.com/hanwen/go-fuse/v2@v2.0.4-0.20210125162859-8e0bbdb16cb7/fs/bridge.go:819 +0x26d
github.com/hanwen/go-fuse/v2/fuse.doWrite(0xc000170160, 0xc000248240)
	github.com/hanwen/go-fuse/v2@v2.0.4-0.20210125162859-8e0bbdb16cb7/fuse/opcode.go:191 +0x6f
github.com/hanwen/go-fuse/v2/fuse.(*Server).handleRequest(0xc000170160, 0xc000248240, 0xc000000000)
	github.com/hanwen/go-fuse/v2@v2.0.4-0.20210125162859-8e0bbdb16cb7/fuse/server.go:472 +0x2be
github.com/hanwen/go-fuse/v2/fuse.(*Server).loop(0xc000170160, 0xc000cd4101)
	github.com/hanwen/go-fuse/v2@v2.0.4-0.20210125162859-8e0bbdb16cb7/fuse/server.go:445 +0x198
created by github.com/hanwen/go-fuse/v2/fuse.(*Server).readRequest
	github.com/hanwen/go-fuse/v2@v2.0.4-0.20210125162859-8e0bbdb16cb7/fuse/server.go:312 +0x41d
    matrix_test.go:354: Write failed
 2021-03-20 18:27:34 +01:00
Jakob Unterwurzacher
255a71c917 tests: MountOrFatal creates mnt dir itself 
Allows to drop a few Mkdir()s.
 2021-03-20 10:33:34 +01:00
Jakob Unterwurzacher
952d45ce84 tests: add TestDiskFull 
Also fix incomplete uid restoration in TestSupplementaryGroups
and replace syscall.Setregid and friends with unix.Setregid and
friends.

This test is added to check if have problems handling a full disk.
The ticket https://github.com/rfjakob/gocryptfs/issues/550 states
that the full disk was not where the backing gocryptfs filesystem
was, but this has no effect on gocryptfs, so we test the harder
case.
 2021-03-12 19:25:25 +01:00
Jakob Unterwurzacher
e2dc52a965 v2api: -sharestorage: disable hard link tracking & add tests 
Hard link tracking was not correctly disabled
since the migration to the go-fuse v2 api.

Add a test to ensure it stays off.

Fixes https://github.com/rfjakob/gocryptfs/issues/525
 2021-03-07 17:22:29 +01:00
Jakob Unterwurzacher
eaca820e87 fusefrontend: do not encrypt ACLs 
Pass through system.posix_acl_access and system.posix_acl_default
unencrypted to fix "cp -a" problems.

"cp -a" uses "setxattr" even to set normal permissions, see
https://www.spinics.net/lists/linux-nfs/msg63986.html .

Fixes https://github.com/rfjakob/gocryptfs/issues/543
 2021-02-07 20:01:16 +01:00
Jakob Unterwurzacher
bb2484f152 tests/xattr: fix acl blob 
The blob was truncated to 31 bytes.
 2021-02-07 20:00:33 +01:00
Jakob Unterwurzacher
bed60101f4 nametransform: make gocryptfs.diriv and gocryptfs.xxx.name files world-readable 
Make `gocryptfs.diriv` and `gocryptfs.xxx.name` files world-readable to make encrypted backups easier
when mounting via fstab.

Having the files follow chmod/chown of their parent does not seem
to be worth the hassle. The content of the diriv files is not
secret, and both diriv and name files are protected by the
perms of the parent dir.

Fixes https://github.com/rfjakob/gocryptfs/issues/539
 2021-01-10 08:07:10 +01:00
Jakob Unterwurzacher
754c483870 tests: fsstress-gocryptfs.bash: log timestamp for each iteration 2020-10-04 00:12:46 +02:00
Jakob Unterwurzacher
66449bf56b tests: fsstress-gocryptfs.bash: add DEBUG option 
Also add a wrapper script, fsstress.collect-crashes.sh, to collect
the debug output.

https://github.com/hanwen/go-fuse/issues/372
 2020-10-04 00:12:25 +02:00
Jakob Unterwurzacher
3c5a80c27b fsstress-gocryptfs.bash: don't hang if TMPDIR ends in / 
We would hang like this

   ./fsstress-loopback.bash
  Recompile go-fuse loopback: v2.0.3-7-g0b6cbc5
  Waiting for mount: xxxxxxxx^C

if TMPDIR has a trailing /. The reason is that the
paths in /proc/self/mounts are normalized, while
TMPDIR may not be.
 2020-10-03 14:23:37 +02:00
Jakob Unterwurzacher
27c92f63be fsstress-gocryptfs.bash: print loopback version & mount path 
To make the used go-fuse version clear in logs,
print it on startup, similar to what we do with gocryptfs.
 2020-09-18 18:31:22 +02:00
Jakob Unterwurzacher
af7386713c stress_tests/fsstress-gocryptfs.bash: use rm -Rf for cleanup 
Apparently, kernel 5.8 now allows unprivileged "mknod /tmp/x c 0 0":

	vfs: allow unprivileged whiteout creation
	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.8.9&id=a3c751a50fe6bbe50eb7622a14b18b361804ee0c

which is why rm throws a new prompt:

	rm: remove write-protected character special file '...'?

Use rm -Rf to suppress that.
 2020-09-13 14:14:23 +02:00
Jakob Unterwurzacher
6a9c49e9cf tests/plaintextnames: add TestInoReuseEvil 2020-09-12 17:55:37 +02:00
Jakob Unterwurzacher
db61ec5115 tests: add TestInoReuse 2020-09-09 18:18:37 +02:00
Jakob Unterwurzacher
6577f1b146 test_helpers: print warning when not running on ext4 
ext4 reuses inode numbers, tmpfs does not.
 2020-09-09 11:47:17 +02:00
Jakob Unterwurzacher
7c0363dee5 test_helpers: mark MountOrFatal as a Helper() 2020-09-09 11:15:54 +02:00
Jakob Unterwurzacher
993b19c19c gocryptfs -init: fix wrong exit code on non-empty dir 
Fixes https://github.com/rfjakob/gocryptfs/pull/503
 2020-09-06 11:35:25 +02:00
Jakob Unterwurzacher
3806a8cc93 tests/reverse: implement (skipped) xattr test 
v1api reverse mode did not have xattr support,
the v2api version may have at some point. Prep the
test already.
 2020-08-30 16:36:10 +02:00
Jakob Unterwurzacher
d212b246c5 v2api/reverse: implement Lseek 2020-08-16 19:58:47 +02:00
Jakob Unterwurzacher
58a2726977 v2api/reverse: implement Statfs 2020-08-16 19:41:00 +02:00
Jakob Unterwurzacher
94e8fc12ea v2api/reverse: finish -exclude 
Tests pass now.
 2020-08-15 17:31:45 +02:00
Jakob Unterwurzacher
f270135c16 test_helper: VerifyExistence: don't panic 
Instead bubble up the error to the testing object.
 2020-08-15 15:39:08 +02:00
Jakob Unterwurzacher
9e0b07ec99 stress_tests: run pingpong.bash at nice level 19 
Like extractloop.bash.
 2020-07-26 20:01:30 +02:00
Jakob Unterwurzacher
4572cd2103 v2api: fix missing size translation in Lookup 2020-07-26 19:49:26 +02:00
Jakob Unterwurzacher
9cd24d79a2 v2api: implement Lseek 
This also fixes the last remaining tests/fsck failure.
 2020-07-23 22:55:07 +02:00
Jakob Unterwurzacher
8915785acf v2api: fsck: use a temporary mount 
Directly accessing the Nodes does not work properly,
as there is no way to attach a newly LOOKUPped Node
to the tree. This means Path() does not work.

Use an actual mount instead and walk the tree.
 2020-07-19 23:03:47 +02:00
Jakob Unterwurzacher
d7db071528 tests: TestMagicNames: add warmup rounds 
Chasing a bug that seems to have nothing to do
with magic names, as it already triggers during
warmup:

--- FAIL: TestMagicNames (0.00s)
    matrix_test.go:773: Testing n="warmup1"
    matrix_test.go:773: Testing n="warmup2"
    matrix_test.go:820: no such file or directory
 2020-07-12 21:00:52 +02:00
Jakob Unterwurzacher
f11432d02a v2api: Getattr: use file handle if passed 2020-07-12 15:08:17 +02:00
Jakob Unterwurzacher
f3a0dbabee tests: fix TestCpWarnings comment typo 2020-07-12 13:43:34 +02:00
Jakob Unterwurzacher
fd0e8aa869 tests: don't crash on empty Flistxattr result 2020-07-12 13:40:21 +02:00
Jakob Unterwurzacher
735e2aa65b v2api: fix Mkdir crash when using plaintextnames 2020-07-12 13:35:37 +02:00
Jakob Unterwurzacher
3b61244b72 tests: TestBadname: simplify test by using empty files 
Simplify the tests by using empty files. Empty
files are valid, and we don't check the content
anyway.

Also adjust comment style a little and add
a missing break statement.
 2020-06-06 12:53:45 +02:00
DerDonut
a8230d271f Added auto decryption of invalid file names 
Changed invalid file decoding and decryption. Function
DecryptName now shortens the filename until the filename is
decodable and decryptable. Will work with valid **and**
invalid Base64URL delimiter (valid delimiter [0-9a-zA-z_\\-].
If the filename is not decryptable at all, it returns the
original cipher name with flag suffix Changed cli tests to
generate decryptable and undecryptable file names with correct
encrypted content. Replacing #474, extends #393
 2020-06-06 12:20:31 +02:00
Jakob Unterwurzacher
a56e7cc5ac sshfs-benchmark.bash: fix locale trouble and move to tests 
Locale trouble was

   sshfs-benchmark.bash: line 31: printf: 4.71: invalid number

because printf expected "4,71" in the German locale.
Force the C locale.
 2020-06-06 12:15:41 +02:00
Jakob Unterwurzacher
f8ad2ac3e2 dircache: increase cache size & lifetime 
Looking at the dircache debug output, we see
that a "git status" workload has a very bad
cache hit rate because the entries expire or
get evicted before they can be reused.

Increase both cache size and lifetime for
a 4x speedup:

Before: 75s
After:  17s

https://github.com/rfjakob/gocryptfs/issues/410
 2020-05-17 21:37:36 +02:00
Jakob Unterwurzacher
416080203b main: accept multiple -passfile options 
Each file will be read and then concatenated
for the effictive password. This can be used as a
kind of multi-factor authenticiton.

Fixes https://github.com/rfjakob/gocryptfs/issues/288
 2020-05-17 19:31:04 +02:00
Jakob Unterwurzacher
ead7008a08 Fix spelling mistakes found by misspell 
https://github.com/client9/misspell
 2020-05-10 00:25:49 +02:00
Jakob Unterwurzacher
a9895b3487 gocryptfs-xray: add -0 flag, add tests 
The -0 flags works like xargs -0.
 2020-05-10 00:04:14 +02:00
Jakob Unterwurzacher
171b1eac91 test_helpers: use new ctlsock.CtlSock API 2020-05-09 19:09:33 +02:00