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2018-09-08main: don't read the config file twice (fix pipe bug)Jakob Unterwurzacher
Instead, first Load() the file, then DecryptMasterKey(). Fixes https://github.com/rfjakob/gocryptfs/issues/258
2018-09-08configfile: add LoadAndDecrypt wrapperJakob Unterwurzacher
Callers that do not want to decrypt the masterkey should call plain Load(). https://github.com/rfjakob/gocryptfs/issues/258
2018-09-08configfile: split off masterkey decryptionJakob Unterwurzacher
Preparation for fixing https://github.com/rfjakob/gocryptfs/issues/258
2018-09-08configfile: return specific error on empty inputJakob Unterwurzacher
Report the actual problem instead of a generic "unexpected end of JSON input". https://github.com/rfjakob/gocryptfs/issues/258
2018-08-26travis: add Go 1.11Jakob Unterwurzacher
Released two days ago
2018-08-26syscallcompat: drop Fchmodat flagsv1.6.1Jakob Unterwurzacher
These were silently ignored until now (!) but are rejected by Go 1.11 stdlib. Drop the flags so the tests work again, until we figure out a better solution. https://github.com/golang/go/issues/20130
2018-08-26travis: show fs type for /tmpJakob Unterwurzacher
2018-08-18README: update benchmark outputJakob Unterwurzacher
2018-08-18Update reverse benchmarksv1.6Jakob Unterwurzacher
2018-08-18Update README for v1.6 releaseJakob Unterwurzacher
2018-08-15README: list trezor support in changelogJakob Unterwurzacher
2018-08-15trezor: document -trezor in man pageJakob Unterwurzacher
Also fix "--", which was shown as just "-" in the man pager.
2018-08-15trezor: show support in version stringJakob Unterwurzacher
Show enable_trezor in the version string if we were compiled with `-tags enable_trezor`. And hide the `-trezor` flag from the help output if we were not.
2018-08-15dep: update dependenciesJakob Unterwurzacher
2018-08-15build.bash: handle args containing spacesJakob Unterwurzacher
Fixes ./build.bash -tags "enable_trezor without_openssl"
2018-08-15fusefrontend: truncateGrowFile: pass zeroPad error to callerJakob Unterwurzacher
Errors from zeroPad were ignored until now, as discovered using xfstests generic/083.
2018-08-15fsck: skip already-seen hard-linked filesJakob Unterwurzacher
We may hit files several times due to hard links. Only check the contents once.
2018-08-15fsck: don't print corse corruption offsetJakob Unterwurzacher
The exact ciphertext block number (4KiB granularity) is already printed in the doRead message. Don't cause confusion by printing the 128KiB-granularity offset as well. doRead 767: corrupt block #4: stupidgcm: message authentication failed fsck: error reading file "pa/d7/d14/f10c" (inum 767): 5=input/output error
2018-08-15main: add -e as an alias for -excludeJakob Unterwurzacher
2018-08-15fusefrontend_reverse: reject excludes for the root directory ""Jakob Unterwurzacher
This is most likely a mistake by the user. Reject it.
2018-08-11Update changelogJakob Unterwurzacher
2018-08-11reverse mode: add --exclude optionJakob Unterwurzacher
https://github.com/rfjakob/gocryptfs/issues/235
2018-08-11cli: add multipleStrings typeJakob Unterwurzacher
Will be used for --exclude.
2018-08-11tests: VerifyExistence: panic on inconsistent resultsJakob Unterwurzacher
In the past we did not check whether all methods of checking the file return the same result. We should.
2018-08-02travis ci: drop go 1.5 and go 1.6Jakob Unterwurzacher
Trying to build with these versions now throws this error: # golang.org/x/sys/unix ../../../golang.org/x/sys/unix/ioctl.go:18: undefined: runtime.KeepAlive It looks like x/sys/unix has dropped support for older Go versions.
2018-07-23fsck: print inode number on file read errorJakob Unterwurzacher
This makes it possible to find the file without mounting the fs.
2018-07-23configfile: drop superflous PrintfJakob Unterwurzacher
Before: $ gocryptfs -fsck . LoadConfFile: ReadFile: &os.PathError{Op:"open", Path:"/var/tmp/check-gocryptfs/scratchdev/gocryptfs.conf", Err:0xd} Cannot open config file: open /var/tmp/check-gocryptfs/scratchdev/gocryptfs.conf: permission denied After: $ gocryptfs -fsck . Cannot open config file: open /var/tmp/check-gocryptfs/scratchdev/gocryptfs.conf: permission denied
2018-07-22fusefronted: disallow writes running concurrently with readsJakob Unterwurzacher
As uncovered by xfstests generic/465, concurrent reads and writes could lead to this, doRead 3015532: corrupt block #1039: stupidgcm: message authentication failed, as the read could pick up a block that has not yet been completely written - write() is not atomic! Now writes take ContentLock exclusively, while reads take it shared, meaning that multiple reads can run in parallel with each other, but not with a write. This also simplifies the file header locking.
2018-07-15fusefrontend: doWrite: delete file header if first write failsJakob Unterwurzacher
xfstests generic/083 fills the filesystem almost completely while running fsstress in parallel. In fsck, these would show up: readFileID 2580: incomplete file, got 18 instead of 19 bytes This could happen when writing the file header works, but writing the actual data fails. Now we kill the header again by truncating the file to zero.
2018-07-15fusefrontend: doWrite: no need to take HeaderLock.RLock()Jakob Unterwurzacher
Other writers are blocked by ContentLock already.
2018-07-15WriteDirIV: delete incomplete gocryptfs.diriv file if write failsJakob Unterwurzacher
If the underlying filesystem is full, writing to gocryptfs.diriv may fail, and later fsck show this: OpenDir "xyz": could not read gocryptfs.diriv: wanted 16 bytes, got 0 Uncovered by xfstests generic/083. Also fixes a fd leak in the error path.
2018-07-15contentenc: reserve one extra block in pool plaintext buffersJakob Unterwurzacher
File holes and -fsck can cause unaligned read accesses, which means we have to decrypt one extra plaintext block. xfstests generic/083 manage to crash -fsck like this: generic/083 2018/07/14 15:25:21 wrong len=266240, want=131072 panic: wrong len=266240, want=131072 goroutine 1 [running]: log.Panicf(0x67fc00, 0x15, 0xc4204fec90, 0x2, 0x2) /usr/local/go/src/log/log.go:333 +0xda github.com/rfjakob/gocryptfs/internal/contentenc.(*bPool).Put(0xc4200d4800, 0xc4202f2000, 0x21000, 0x41000) /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/contentenc/bpool.go:27 +0x15d github.com/rfjakob/gocryptfs/internal/fusefrontend.(*File).doRead(0xc4200b4500, 0xc42019e000, 0x0, 0x20000, 0x28400, 0x20000, 0xc42019e000, 0xc4204ff008, 0x435164, 0xc420000180) /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/fusefrontend/file.go:227 +0xba9 github.com/rfjakob/gocryptfs/internal/fusefrontend.(*File).Read(0xc4200b4500, 0xc42019e000, 0x20000, 0x20000, 0x28400, 0x0, 0x0, 0x0) /home/jakob/go/src/github.com/rfjakob/gocryptfs/internal/fusefrontend/file.go:246 +0x23e main.(*fsckObj).file(0xc420069320, 0xc42001a630, 0x21) /home/jakob/go/src/github.com/rfjakob/gocryptfs/fsck.go:126 +0x21f main.(*fsckObj).dir(0xc420069320, 0xc420014dc0, 0x1d) /home/jakob/go/src/github.com/rfjakob/gocryptfs/fsck.go:76 +0x387 main.(*fsckObj).dir(0xc420069320, 0xc42021dae0, 0x19) /home/jakob/go/src/github.com/rfjakob/gocryptfs/fsck.go:74 +0x347
2018-07-15fsck: add debug output (enabled via -debug)Jakob Unterwurzacher
Turn the commented-out fmt.Printf into debug output via the tlog infrastructure.
2018-07-15file-format.md: list full block overheadrfjakob
For large files, the overhead will be 0.78125 %.
2018-07-14fusefrontend: log prealloc failures at Info levelJakob Unterwurzacher
If the underlying filesystem is full, it is normal get ENOSPC here. Log at Info level instead of Warning. Fixes xfstests generic/015 and generic/027, which complained about the extra output.
2018-07-08travis: run dep ensure in verbose modeJakob Unterwurzacher
But make the output fold to reduce clutter. Move wget to the install section, where output is folded by default.
2018-07-07MANPAGE: add proper description textJakob Unterwurzacher
We only had an "options" section which was mislabeled as "description". Add a proper description text.
2018-07-04README: it's not a mirrorJakob Unterwurzacher
2018-07-04README: call the Markdown source "mirror"Jakob Unterwurzacher
2018-07-04macos: fix O_DIRECT build failureJakob Unterwurzacher
O_DIRECT has no direct equivalent on MacOS (check out https://github.com/libuv/libuv/issues/1600 for details). Just define it to zero there.
2018-07-02README: mention O_DIRECT changeJakob Unterwurzacher
2018-07-02fusefrontend: disallow O_DIRECT and fall back to buffered IOJakob Unterwurzacher
O_DIRECT accesses must be aligned in both offset and length. Due to our crypto header, alignment will be off, even if userspace makes aligned accesses. Running xfstests generic/013 on ext4 used to trigger lots of EINVAL errors due to missing alignment. Just fall back to buffered IO.
2018-07-02fusefronted: downgrade fallocate message severityJakob Unterwurzacher
The message causes output mismatches in xfstests generic/112. Downgrade the severity to Info so it gets disabled when using "-q".
2018-07-01Fix golint warningsJakob Unterwurzacher
2018-07-01trezor: hide behind compile tagJakob Unterwurzacher
The trezor libraries are not yet stable enough to build gocryptfs with trezor support by default. It does not even compile at the moment: $ ./build.bash -tags enable_trezor # github.com/conejoninja/tesoro/vendor/github.com/trezor/usbhid ../../conejoninja/tesoro/vendor/github.com/trezor/usbhid/hid.go:32:11: fatal error: os/threads_posix.c: No such file or directory #include "os/threads_posix.c" ^~~~~~~~~~~~~~~~~~~~ compilation terminated. https://github.com/conejoninja/tesoro/issues/9
2018-07-01fsck: handle sparse files efficiently, fix xfstests generic/285Jakob Unterwurzacher
If we encounter a 128KB block of zeros, try to skip to the next data section by calling File.SeekData(). This fixes xfstests generic/285, which creates a 17TB sparse file, and runs fsck afterwards. Without this optimization, fsck would take ages.
2018-07-01fusefrontend: add File.SeekData() functionJakob Unterwurzacher
This function will enable "gocryptfs -fsck" to handle sparse files efficiently.
2018-07-01fusefrontend: export "File" typeJakob Unterwurzacher
"gocryptfs -fsck" will need access to helper functions, and to get that, it will need to cast a gofuse.File to a fusefrontend.File. Make fusefrontend.File exported to make this work.
2018-07-01fsck: get rid of channel read closuresJakob Unterwurzacher
Create proper functions instead to declutter the logic.
2018-07-01fsck: rename "CorruptItems" channel to "MitigatedCorruptions"Jakob Unterwurzacher
Make it clear that this channel is only used to report corruptions that are transparently mitigated and do not return an error to the user.
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