00a712b4d1
go fmt
...
...and minimal comment changes.
2015-12-13 20:24:13 +01:00
8518d6d7bd
Handle EINTR returned by Fallocate
...
Fallocate can return EINTR (interrupted system call) and does so
quite often when cpu profiling is enabled.
2015-12-13 17:17:01 +01:00
ff8c81f95b
go fmt
2015-12-08 13:51:06 +01:00
56888d83dd
fallocate the space needed for the file header beforehand
...
This makes sure writing to a file fails early if the underlying
filesystem does not support fallocate. It also prevents partial header
write due to ENOSPC.
2015-12-06 15:05:52 +01:00
fa3a382aa4
Handle ENOSPC errors better by preallocating the space before writing
...
Prevent the case that we run out of space in the middle of
writing a block - that would leave a corrupt block behind.
2015-11-08 22:36:29 +01:00
e31d319c39
Remove code detected by "deadcode"
...
go get github.com/remyoudompheng/go-misc/deadcode
2015-11-01 12:32:10 +01:00
902babdf22
Refactor ciphertext <-> plaintext offset translation functions
...
Move all the intelligence into the new file address_translation.go.
That the calculations were spread out too much became apparent when adding
the file header. This should make the code much easier to modify in the
future.
2015-11-01 12:11:36 +01:00
76311b60f2
Add file header (on-disk-format change)
...
Format: [ "Version" uint16 big endian ] [ "Id" 16 random bytes ]
Quoting SECURITY.md:
* Every file has a header that contains a 16-byte random *file id*
* Each block uses the file id and its block number as GCM *authentication data*
* This means the position of the blocks is protected as well. The blocks
can not be reordered or copied between different files without
causing an decryption error.
2015-11-01 01:38:27 +01:00
a3d286069f
Use block number as authentication data
2015-10-06 22:27:37 +02:00
aa082c235a
Utimens: Use UtimesNano instead of Futimes
...
Futimes() only takes microsecond resolution while the FUSE call
Utimens() wants nanosecond precision.
This is why UTIME_OMIT did not work - this change fixes the
xfstests generic/258 test failure.
The go library does not provide a FutimesNano() function which is
why I use UtimesNano() on /proc/self/fd/n.
This is what the Go library does in Futimes().
2015-10-04 20:32:15 +02:00
c7313f36de
fallocate: return ENOSYS
...
The implementation was incomplete, disable fallocate completely for now.
See https://github.com/rfjakob/gocryptfs/issues/1
Fixes xfstests generic/075
2015-10-04 17:14:40 +02:00
90bd978283
truncate: Fix bug that caused xfstests generic/030 to fail
...
The bug was caused by using cipherOff where plainOff should
have been used.
Renamed the symbols for less confusion.
2015-10-04 16:04:25 +02:00
aa6fa7f3cf
Truncate: Logging improvements, show number of blocks as float
2015-10-04 15:45:46 +02:00
b27edba2bb
Fix Trucate() bug causing files to be too small
...
Uncovered by running xfstests generic/014 several times
2015-10-04 15:40:59 +02:00
89fef80d32
Run go fmt
2015-10-04 14:49:47 +02:00
c859f0b2dc
intraBlock: Rename Offset to Skip
...
"Offset" is unclear whether it is an offset from the start of file
or start of block. "Skip" seems much better.
2015-10-04 14:24:43 +02:00
775676ecb8
Utilize file hole passtrough capability in Truncate()
...
Cuts down the runtime of xfstests generic/014
from 1822 seconds to 36 seconds
2015-10-04 14:21:07 +02:00
2003ca965d
Zero-pad last block if a file hole is created on Write()
...
Fixes TestFileHoles test
2015-10-04 11:39:35 +02:00
40448db909
Fix xfstests generic/030 failure
...
The actual fix is
oldSize := f.cfs.PlainSize(uint64(fi.Size()))
the rest is logging improvements
2015-10-04 00:26:20 +02:00
79870ab096
debug: log inode number instead of encrypted filename
...
Makes the log output smaller and more readable.
2015-10-03 19:16:34 +02:00
3fef613591
tests: Add append test
2015-09-30 23:42:18 +02:00
b835f83fd5
Implement Truncate() + Test
2015-09-30 22:36:53 +02:00
aea8d8d6e7
debug: Log encrypted filename
2015-09-30 20:32:24 +02:00
0af3cfcac0
Fix symlink size reporting
2015-09-16 19:32:37 +02:00
e7ba3c61f1
Fix File.GettAttr() size reporting
...
The too-large reported value broke mmap
(applications saw appended zero bytes)
Also
* Add locking for all fd operations
* Add "--debug" command line switch
2015-09-09 19:32:59 +02:00
80935a0e1b
Explain both frontends in readme
...
Also, re-enable openssl and disable debug messages so testing
gocryptfs is less painful
2015-09-08 23:09:28 +02:00
28cdff5889
tests: add TestCiphertextRange
2015-09-08 22:36:38 +02:00
b13cc9686c
Fix append issue
2015-09-08 22:34:23 +02:00
1ca4fc89aa
More debug logging, improve main_test.go (do not use all-zero content)
2015-09-08 22:03:27 +02:00
caaad7c8d7
Add pathfs frontend, part II
...
Fix issues in read and write paths.
Now passes selftest.
2015-09-08 21:35:06 +02:00
889ae90081
Add pathfs frontend (uses go-fuse instead of bazil-fuse), part I
...
Currently fails main_test.go, will be fixed in part II
2015-09-08 00:55:03 +02:00
Jakob Unterwurzacher