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New codes:
* OpenConf = 23
* WriteConf = 24
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Empty passwords are not allowed. Let's give the error
it's own exit code.
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Instead, create three new specific exit codes:
* FuseNewServer = 19
* CtlSock = 20
* PanicLogCreate = 21
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We used to return code 8, now we return code 12 as documented in
the man page.
Also adds a test.
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This commit defines all exit codes in one place in the exitcodes
package.
Also, it adds a test to verify the exit code on incorrect
password, which is what SiriKali cares about the most.
Fixes https://github.com/rfjakob/gocryptfs/issues/77 .
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Closes https://github.com/rfjakob/gocryptfs/issues/84 .
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nametransform.DecryptName() now always returns syscall.EBADMSG if
the name was invalid.
fusefrontend.OpenDir error messages have been normalized.
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Misspell Finds commonly misspelled English words
gocryptfs/internal/configfile/scrypt.go
Line 41: warning: "paramter" is a misspelling of "parameter" (misspell)
gocryptfs/internal/ctlsock/ctlsock_serve.go
Line 1: warning: "implementes" is a misspelling of "implements" (misspell)
gocryptfs/tests/test_helpers/helpers.go
Line 27: warning: "compatability" is a misspelling of "compatibility" (misspell)
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Now looks like this:
$ ./gocryptfs -version
gocryptfs [GitVersion not set - please compile using ./build.bash]; go-fuse [GitVersionFuse not set - please compile using ./build.bash]; 0000-00-00 go1.8
Hopefully easier to grep for.
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...if we were compiled with "-race".
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This usually indicates that the open file limit for gocryptfs is
too low. We should report this to the user.
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We don't want to set the limit to unlimited if "Max" is unlimited.
Hard-cap to 4096.
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Linux by default has a soft limit of 1024 and a hard limit of
4096 on open files. We can increase it so 4096 without root
permissions.
This should help reduce the risk of gocryptfs running out of
file descriptors, as reported at
https://github.com/rfjakob/gocryptfs/issues/82 .
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May be helpful for https://github.com/vgough/encfs/issues/214 .
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...and IDLock to HeaderLock. This matches what the locks actually
protect.
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Now that we embed nodefs.NewDefaultFile(), we can drop our own
no-ops.
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This can happen during normal operation, and is harmless since
14038a1644f17f50b113a05d09a2a0a3b3e973b2
"fusefrontend: readFileID: reject files that consist only of a header"
causes dormant header-only files to be rewritten on the next write.
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This test reproduces the problem xfstests generic/124 uncovered.
The warning itself is harmless, but we should either (1) add locking
so that this cannot happen anymore or (2) drop the warning.
Currently fails:
$ go test -v
=== RUN Test1980Tar
--- PASS: Test1980Tar (0.00s)
=== RUN TestCtlSock
--- PASS: TestCtlSock (0.10s)
=== RUN TestOpenTruncateRead
--- PASS: TestOpenTruncateRead (0.00s)
=== RUN TestWORead
--- PASS: TestWORead (0.00s)
=== RUN TestXfs124
cipherSize 18 == header size: interrupted write?
-wpanic turns this warning into a panic: cipherSize 18 == header size: interrupted write?
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We do not have to track the writeOnly status because the kernel
will not forward read requests on a write-only FD to us anyway.
I have verified this behavoir manually on a 4.10.8 kernel and also
added a testcase.
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The open file table code needs some room to grow for the upcoming
FD multiplexing implementation.
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Go 1.8.1. has been released recently. Use it for the Go 1.8 branch.
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We want to exit with 1 only if we we have complaints left after
the greps.
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The data structure was originally called write lock table, but
is now simply called the open file table. Rename the file to
reflect that.
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This is a very old leftover.
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This is the value EncFS uses, so let's follow suit.
Suggested at https://github.com/rfjakob/gocryptfs/issues/77 .
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Includes test cases.
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As reported at https://github.com/rfjakob/gocryptfs/issues/105 ,
the "ioutil.WriteFile(file, iv, 0400)" call causes "permissions denied"
errors on an NFSv4 setup.
"strace"ing diriv creation and gocryptfs.conf creation shows this:
conf (works on the user's NFSv4 mount):
openat(AT_FDCWD, "/tmp/a/gocryptfs.conf.tmp", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0400) = 3
diriv (fails):
openat(AT_FDCWD, "/tmp/a/gocryptfs.diriv", O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0400) = 3
This patch creates the diriv file with the same flags that are used for
creating the conf:
openat(AT_FDCWD, "/tmp/a/gocryptfs.diriv", O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0400) = 3
Closes https://github.com/rfjakob/gocryptfs/issues/105
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...and fix a few golint issues and print a scary warning message on mount.
Also, force the fs to ro,noexec.
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Force decode of encrypted files even if the integrity check fails, instead of
failing with an IO error. Warning messages are still printed to syslog if corrupted
files are encountered.
It can be useful to recover files from disks with bad sectors or other corrupted
media.
Closes https://github.com/rfjakob/gocryptfs/pull/102 .
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go-fuse has added a new method to the nodefs.File interface that
caused this build error:
internal/fusefrontend/file.go:75: cannot use file literal (type *file) as type nodefs.File in return argument:
*file does not implement nodefs.File (missing Flock method)
Fixes https://github.com/rfjakob/gocryptfs/issues/104 and
prevents the problem from happening again.
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The volatile inode numbers that we used before cause "find" to complain and error out.
Virtual inode numbers are derived from their parent file inode number by adding 10^19,
which is hopefully large enough no never cause problems in practice.
If the backing directory contains inode numbers higher than that, stat() on these files
will return EOVERFLOW.
Example directory lising after this change:
$ ls -i
926473 gocryptfs.conf
1000000000000926466 gocryptfs.diriv
944878 gocryptfs.longname.hmZojMqC6ns47eyVxLlH2ailKjN9bxfosi3C-FR8mjA
1000000000000944878 gocryptfs.longname.hmZojMqC6ns47eyVxLlH2ailKjN9bxfosi3C-FR8mjA.name
934408 Tdfbf02CKsTaGVYnAsSypA
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This has long been replaced by virtualFile.GetAttr().
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The fmt.Printfs output would end up in the paniclog.
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Note: find currently complains like this:
find: failed to read file names from file system at or below
‘/tmp/linux-3.0.reverse.mnt.vNI’: No such file or directory
I have analyzed this and it is caused by the non-stable inode numbers
that gocryptfs -reverse uses. Will be fixed in a later commit.
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...and improve and comment variable naming in findLongnameParent.
No semantic changes.
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This PR addresses the Issue #95, about "Confusing file owner for
longname files in reverse mode".
It affects only the reverse mode, and introduces two
modifications:
1) The "gocryptfs.longname.XXXX.name" files are assigned the owner and
group of the underlying plaintext file. Therefore it is consistent
with the file "gocryptfs.longname.XXXX" that has the encrypted
contents of the plaintext file.
2) The two virtual files mentioned above are given -r--r--r--
permissions. This is consistent with the behavior described in
function Access in internal/fusefrontend_reverse/rfs.go where all
virtual files are always readable. Behavior also observed in point
c) in #95 .
Issue #95 URL: https://github.com/rfjakob/gocryptfs/issues/95
Pull request URL: https://github.com/rfjakob/gocryptfs/pull/97
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https://github.com/rfjakob/gocryptfs/issues/98
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This makes it render properly on the github webinterface.
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This makes sure we cannot get weak parameters passed through a
rougue gocryptfs.conf.
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* Further explain the use of 'scryptn' parameter
* Further explain the use of 'scryptn' parameter in MANPAGE
* Use 28 as reasonable upper limit
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This keeps the README working even if nuetzlich.net is unavailable.
We use a PNG because github disallows embedding local SVGs.
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1000 was too low as at least one user had a password
that was longer.
Fixes https://github.com/rfjakob/gocryptfs/issues/93
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