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2016-11-28fusefronted: preserve owner for device nodes and socketsJakob Unterwurzacher
https://github.com/rfjakob/gocryptfs/issues/64
2016-11-28fusefrontend: use Lchown when preserving ownerJakob Unterwurzacher
This prevents (unlikely) symlink race attacks
2016-11-26main: fix USR1 race condition, fixes test flakinessJakob Unterwurzacher
We could have gotten the signal before the handler was ready, which caused the process to wait indefinitely. This was the reason test.bash sometimes hung.
2016-11-26tests: don't call t.Fatal in checkExampleFSJakob Unterwurzacher
Calling t.Fatal means that the parent test has no chance to clean up.
2016-11-26test.bash: lock against multiple parallel incovationsJakob Unterwurzacher
Running multiple test.bash in parallel causes all kinds of mayham.
2016-11-26Add write coalescing and -noprealloc to changelogJakob Unterwurzacher
2016-11-26performance.txt: add numbers for current gocryptfs master and encfs v1.9.1Jakob Unterwurzacher
2016-11-26benchmark.bash: double write lengthJakob Unterwurzacher
Writing 1000 128KB blocks takes only 1 second and yielded inconsistent results. With 2000, things look saner.
2016-11-25main, fusefrontend: add "-noprealloc" optionJakob Unterwurzacher
Preallocation is very slow on hdds that run btrfs. Give the user the option to disable it. This greatly speeds up small file operations but reduces the robustness against out-of-space errors. Also add the option to the man page. More info: https://github.com/rfjakob/gocryptfs/issues/63
2016-11-25fusefrontend: coalesce 4kB writesJakob Unterwurzacher
This improves performance on hdds running ext4, and improves streaming write performance on hdds running btrfs. Tar extract slows down on btrfs for some reason. See https://github.com/rfjakob/gocryptfs/issues/63 Benchmarks: encfs v1.9.1 ============ $ ./benchmark.bash -encfs /mnt/hdd-ext4 Testing EncFS at /mnt/hdd-ext4/benchmark.bash.u0g WRITE: 131072000 bytes (131 MB, 125 MiB) copied, 1,48354 s, 88,4 MB/s UNTAR: 20.79 LS: 3.04 RM: 6.62 $ ./benchmark.bash -encfs /mnt/hdd-btrfs Testing EncFS at /mnt/hdd-btrfs/benchmark.bash.h40 WRITE: 131072000 bytes (131 MB, 125 MiB) copied, 1,52552 s, 85,9 MB/s UNTAR: 24.51 LS: 2.73 RM: 5.32 gocryptfs v1.1.1-26-g4a7f8ef ============================ $ ./benchmark.bash /mnt/hdd-ext4 Testing gocryptfs at /mnt/hdd-ext4/benchmark.bash.1KG WRITE: 131072000 bytes (131 MB, 125 MiB) copied, 1,55782 s, 84,1 MB/s UNTAR: 22.23 LS: 1.47 RM: 4.17 $ ./benchmark.bash /mnt/hdd-btrfs Testing gocryptfs at /mnt/hdd-btrfs/benchmark.bash.2t8 WRITE: 131072000 bytes (131 MB, 125 MiB) copied, 6,87206 s, 19,1 MB/s UNTAR: 69.87 LS: 1.52 RM: 5.33 gocryptfs v1.1.1-32 =================== $ ./benchmark.bash /mnt/hdd-ext4 Testing gocryptfs at /mnt/hdd-ext4/benchmark.bash.Qt3 WRITE: 131072000 bytes (131 MB, 125 MiB) copied, 1,22577 s, 107 MB/s UNTAR: 23.46 LS: 1.46 RM: 4.67 $ ./benchmark.bash /mnt/hdd-btrfs/ Testing gocryptfs at /mnt/hdd-btrfs//benchmark.bash.XVk WRITE: 131072000 bytes (131 MB, 125 MiB) copied, 3,68735 s, 35,5 MB/s UNTAR: 116.87 LS: 1.84 RM: 6.34
2016-11-23main: give deferred functions a chance to run (fixes -cpuprofile)Jakob Unterwurzacher
2016-11-23benchmark.bash: allow to specify directoryJakob Unterwurzacher
2016-11-23Drop "benchmark-synthetic.bash"Jakob Unterwurzacher
This scipt was broken for a long time and not very useful.
2016-11-17Fix golint warnings, add helper scriptJakob Unterwurzacher
2016-11-17README: start list for v1.2Jakob Unterwurzacher
2016-11-17tests: rename fsstress-loopback.bash to fsstress-gocryptfs.bashJakob Unterwurzacher
The primary use is testing gocryptfs, after all.
2016-11-17tests: add OpenTruncateRead testJakob Unterwurzacher
This is a regression test for the issue that was fixed by the last commit.
2016-11-17fusefrontend: get the file ID from the open files tableJakob Unterwurzacher
This fixes the problem that a truncate can reset the file ID without the other open FDs noticing it.
2016-11-17fusefrontend: upgrade wlockMap to use device AND inode numberJakob Unterwurzacher
If there are multiple filesystems backing the gocryptfs filesystems inode numbers are not guaranteed to be unique.
2016-11-11MANPAGE: document ctlsockJakob Unterwurzacher
2016-11-10ctlsock: prevent panic on invalid decrypt requestJakob Unterwurzacher
2016-11-10tests: allow overriding hardcoded arguments in Mount helperJakob Unterwurzacher
2016-11-10ctlsock: implement EncryptPath for reverse mode, add testsJakob Unterwurzacher
2016-11-10reverse: fix longname decoding bugJakob Unterwurzacher
This could have caused spurious ENOENT errors. That it did not cause these errors all the time is interesting and probably because an earlier readdir would place the entry in the cache. This masks the bug.
2016-11-10Fix golint warningsJakob Unterwurzacher
$ golint ./... | grep -v underscore | grep -v ALL_CAPS internal/fusefrontend_reverse/rfs.go:52:36: exported func NewFS returns unexported type *fusefrontend_reverse.reverseFS, which can be annoying to use internal/nametransform/raw64_go1.5.go:10:2: exported const HaveRaw64 should have comment (or a comment on this block) or be unexported
2016-11-10ctlsock: add initial limited implementationJakob Unterwurzacher
At the moment, in forward mode you can only encrypt paths and in reverse mode you can only decrypt paths.
2016-11-09nametransform: get rid of leading "./"Jakob Unterwurzacher
Paths in the root directory were encrypted to this: foobar -> ./N9vPc0gXUY4PDSt0-muYXQ==
2016-11-06nametransform: nicer error message on empty gocryptfs.dirivJakob Unterwurzacher
Old: Nov 06 13:34:38 brikett gocryptfs[16228]: ReadDirIVAt: Read failed: EOF Nov 06 13:34:38 brikett gocryptfs[16228]: go-fuse: can't convert error type: EOF New: Nov 06 14:08:43 brikett gocryptfs[17361]: ReadDirIVAt: wanted 16 bytes, got 0. Returning EINVAL.
2016-11-01Add Go 1.4 compatibility layer for raw64Jakob Unterwurzacher
Using raw64 will not work, but at least it will compile.
2016-11-01main: fix comments that reference "-f"Jakob Unterwurzacher
2016-11-01main: rename "-f" to "-fg"Jakob Unterwurzacher
"-f" looks too much like "--force". The old variant is still accepted for compatability.
2016-11-01MANPAGE: document -raw64Jakob Unterwurzacher
2016-11-01Add support for unpadded base64 filenames, "-raw64"Jakob Unterwurzacher
Through base64.RawURLEncoding. New command-line parameter "-raw64".
2016-11-01tests: add raw64 testsJakob Unterwurzacher
Also, use "%#v" instead of JSON for debug output. This means we can unexport all fields.
2016-11-01MANPAGE: update version field descriptionJakob Unterwurzacher
2016-11-01main: print "args" slightly prettierJakob Unterwurzacher
2016-11-01MANPAGE: add reverse example, move "-o" into alphabetical listJakob Unterwurzacher
People will search for "-o" alphabetically, so put it into the alphabetical option list, even if it is not a real option.
2016-11-01packakge.bash: include rendered man page in tarballJakob Unterwurzacher
2016-11-01fusefronted: expire dir IV cache after one secondJakob Unterwurzacher
The Back In Time backup tool (https://github.com/bit-team/backintime) wants to write directly into the ciphertext dir. This may cause the cached directory IV to become out-of-date. Having an expiry time limits the inconstency to one second, like attr_timeout does for the kernel getattr cache.
2016-11-01fusefrontend: refactor dirIVCacheJakob Unterwurzacher
Simplify the code a bit.
2016-10-30README: fix "15#" typoJakob Unterwurzacher
2016-10-30Update README for v1.1.1v1.1.1Jakob Unterwurzacher
2016-10-30fusefrontend: drop atime workaroundsJakob Unterwurzacher
The fix at https://github.com/hanwen/go-fuse/pull/131 has been merged. Drop the workarounds and re-enable the tests.
2016-10-30build.bash: rename "GOPATH2" to "GOPATH1"Jakob Unterwurzacher
It's the 1st component of GOPATH, so call it like that.
2016-10-30build.bash: abort if we hit a known-bad go-fuse versionJakob Unterwurzacher
Also, standardize to "if [[ ]] ; then" style.
2016-10-28fusefronted: more concise corrupt block log messageJakob Unterwurzacher
Calculating the block offset is easy enough, even more now that gocryptfs-xray exists.
2016-10-28fusefrontend: I/O error instead of panic on all-zero nonceJakob Unterwurzacher
Running xfstests generic/075 on tmpfs often triggered a panic for what seems to be a tmpfs bug. Quoting from the email to lkml, http://www.spinics.net/lists/kernel/msg2370127.html : tmpfs seems to be incorrectly returning 0-bytes when reading from a file that is concurrently being truncated.
2016-10-28main: redirect panics to /tmp/gocryptfs_panic.NNNNJakob Unterwurzacher
Redirect stdout and stderr to /tmp/gocryptfs_paniclog.NNNNNN instead of closing them so users have a chance to get the backtrace on a panic. This only applies if "-nosyslog" is NOT set. Panics will go to terminal as usual if it is.
2016-10-28fusefronted: optimize NFS streaming writes by saving one Stat()Jakob Unterwurzacher
Stat() calls are expensive on NFS as they need a full network round-trip. We detect when a write immediately follows the last one and skip the Stat in this case because the write cannot create a file hole. On my (slow) NAS, this takes the write speed from 24MB/s to 41MB/s.
2016-10-25tests: fetch the example tarball from cdn.kernel.orgJakob Unterwurzacher
www.kernel.org is painfully slow at times.
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