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2018-01-21Documentation: update xfstests outputv1.4.3Jakob Unterwurzacher
Also update the v1.4.3 release date to today. The release was delayed one day.
2018-01-21Documentation: add extractloop example outputJakob Unterwurzacher
2018-01-20Update changelog for 1.4.3Jakob Unterwurzacher
2018-01-20Travis CI: also build with vendored dependenciesJakob Unterwurzacher
2018-01-20dep: update dependenciesJakob Unterwurzacher
We needed a newer version of x/sys/unix to compile, and we want the fixes in go-fuse.
2018-01-20MacOS: rely on OSXFuse to create the mountpointJakob Unterwurzacher
As reported in https://github.com/rfjakob/gocryptfs/issues/194 , OSXFuse creates the mountpoint if it does not exist.
2018-01-20MANPAGE: improve description of -o and -koJakob Unterwurzacher
Was unclear for new users - see https://github.com/rfjakob/gocryptfs/issues/194
2018-01-17fusefrontend_reverse: use OpenNofollow in virtualFile.GetAttrJakob Unterwurzacher
Makes it robust against symlink races. Final piece, closes https://github.com/rfjakob/gocryptfs/issues/165
2018-01-17fusefrontend_reverse: use OpenNofollow in findLongnameParentJakob Unterwurzacher
Protects findLongnameParent against symlink races. Also add comments to several functions along the way. Reported at https://github.com/rfjakob/gocryptfs/issues/165
2018-01-17fusefronted: add PlaintextNames special-cases for Create & RenameJakob Unterwurzacher
gocryptfs.longname.XXX files were considered magic in PlaintextNames mode, which was wrong. Fix that and add tests. Fixes https://github.com/rfjakob/gocryptfs/issues/174
2018-01-16Run go fmtJakob Unterwurzacher
2018-01-16MacOS: rely on OSXFuse to create mountpoint below /VolumesJakob Unterwurzacher
OSXFuse automatically creates the mountpoint if it is below /Volumes because this would require root permissions which the user might not have. Reported at https://github.com/rfjakob/gocryptfs/issues/194
2018-01-10Provide basic man page for xray tool (#193)Felix Lechner
Provide basic man page for xray tool
2018-01-10Fix spellingFelix Lechner
2018-01-07package-source.bash: archive HEAD instead of masterJakob Unterwurzacher
To be able to check out an older version and create a tarball from it, let `git archive` operate on HEAD. This used to be broken in a bad way: we use `git describe` which operates on HEAD to name the tarball, but always archived HEAD.
2018-01-07package-source.bash: also create source-only tarballJakob Unterwurzacher
We used to only create a source + dependecies tarball, but having a source-only tarball makes packaging deb/rpm easier.
2017-12-25fusefrontend: Use Linkat syscall to implement LinkSebastian Lackner
2017-12-25fusefrontend: Handle PlaintextNames mode in LinkSebastian Lackner
In PlaintextNames mode the "gocryptfs.longname." prefix does not have any special meaning. https://github.com/rfjakob/gocryptfs/issues/174
2017-12-25Pinned the link to line 38 of performance.txt to version 1.4.1 since ↵Rohan Talip
https://github.com/rfjakob/gocryptfs/commit/f0e29d9b90b63d5fbe4164161ecb0e1035bb4af4#diff-86b7f3262ae352959ee0e04cccaac1b0 added an extra line.
2017-12-11fusefrontend_reverse: Use O_DIRECTORY in OpenDir implementationSebastian Lackner
Also get rid of the defer - it is not really necessary here.
2017-12-11fusefrontend_reverse: Reject access to device nodes in newFile functionSebastian Lackner
Steps to reproduce: * Create a regular reverse mount point * Create a file "test" in the original directory * Access the corresponding encrypted directory in the mount point (ls <encrypted dir>) * Quickly delete the file in the original data - instead create a device node * Access the file again, it will access the device node and attempt to read from it Fixes https://github.com/rfjakob/gocryptfs/issues/187
2017-12-07fusefrontend_reverse: Use openBackingDir in GetAttrSebastian Lackner
Also fixes 48bd59f38843e5ebd4e4c9f666f1aea1c9990803 - the directory FD should also be closed in case of an error.
2017-12-07fusefrontend_reverse: Use openBackingDir in ReadlinkSebastian Lackner
2017-12-07fusefrontend_reverse: fix fd leak in GetAttrJakob Unterwurzacher
Fixes https://github.com/rfjakob/gocryptfs/issues/184
2017-12-07fusefrontend_reverse: secure Access against symlink races (somewhat)Jakob Unterwurzacher
Unfortunately, faccessat in Linux ignores AT_SYMLINK_NOFOLLOW, so this is not completely atomic. Given that the information you get from access is not very interesting, it seems good enough. https://github.com/rfjakob/gocryptfs/issues/165
2017-12-07syscallcompat: add FaccessatJakob Unterwurzacher
Add faccessat(2) with a hack for symlink, because the kernel does not actually looks at the passed flags. From man 2 faccessat: C library/kernel differences The raw faccessat() system call takes only the first three argu‐ ments. The AT_EACCESS and AT_SYMLINK_NOFOLLOW flags are actually implemented within the glibc wrapper function for faccessat().
2017-12-06tets_helpers: handle t=nil in InitFSJakob Unterwurzacher
The reverse tests call InitFS with t=nil. By calling panic we get a better error message instead of a generic nil pointer dereference.
2017-12-06fusefrontend_reverse: secure Readlink against symlink racesJakob Unterwurzacher
...by using Readlinkat. Tracking ticket: https://github.com/rfjakob/gocryptfs/issues/165
2017-12-06syscallcompat: add ReadlinkatJakob Unterwurzacher
We need readlinkat to implement Readlink symlink-race-free.
2017-12-06syscallcompat: add Darwin version of unix2syscallJakob Unterwurzacher
The "Atim" field is called "Atimespec" on Darwin, same for Mtim and Ctim.
2017-12-06fusefrontend_reverse: secure GetAttr against symlink racesJakob Unterwurzacher
...by using the OpenNofollow helper & Fstatat. Also introduce a helper to convert from unix.Stat_t to syscall.Stat_t. Tracking ticket: https://github.com/rfjakob/gocryptfs/issues/165
2017-12-05syscallcompat: OpenNofollow: use O_DIRECTORY flagJakob Unterwurzacher
...when opening intermedia directories to give us an extra layer of safety. From the FreeBSD man page: This flag can be used to prevent applications with elevated privileges from opening files which are even unsafe to open with O_RDONLY, such as device nodes.
2017-12-05fusefrontend_reverse: secure OpenDir against symlink racesJakob Unterwurzacher
...by using the new OpenNofollow helper. The benchmark shows a small but acceptable performance loss: $ ./benchmark-reverse.bash LS: 2.182 CAT: 18.221 Tracking ticket: https://github.com/rfjakob/gocryptfs/issues/165
2017-12-05syscallcompat: OpenNofollow: fix relPath="" caseJakob Unterwurzacher
Sometimes want to open baseDir itself. This case was broken, fix it.
2017-12-05Documentation: Add reverse mode benchmark resultsJakob Unterwurzacher
2017-12-03syscallcompat: convert Getdents to fd input, add emulationJakob Unterwurzacher
Now that we have Fstatat we can use it in Getdents to get rid of the path name. Also, add an emulated version of getdents for MacOS. This allows to drop the !HaveGetdents special cases from fusefrontend. Modify the getdents test to test both native getdents and the emulated version.
2017-12-03syscallcompat: add Fstatat + emulation + testJakob Unterwurzacher
Fstatat has recently been added to x/sys/unix. Make it available for use in gocryptfs.
2017-12-02fusefrontend_reverse: secure StatFs agains symlink racesJakob Unterwurzacher
...by ignoring the path that was passed in. https://github.com/rfjakob/gocryptfs/issues/165
2017-12-02fusefrontend_reverse: secure Open against symlink racesJakob Unterwurzacher
...using the new syscallcompat.OpenNofollow helper. This change secures Open() against symlink race attacks as described in https://github.com/rfjakob/gocryptfs/issues/165
2017-12-02syscallcompat: add OpenNofollow helperJakob Unterwurzacher
OpenNofollow = symlink-race-safe Open Prepares fixing https://github.com/rfjakob/gocryptfs/issues/165
2017-12-02syscallcompat: move test setup into its own fileJakob Unterwurzacher
The infrastructure will also be used by the upcoming OpenNofollow tests.
2017-12-02syscallcompat: use Unlinkat and Symlinkat from x/sys/unixJakob Unterwurzacher
I'm unsure why I did not notice this earlier, but the syscall wrappers provided by x/sys/unix seem to do just fine. Drop our own version.
2017-12-01syscallcompat: Improve the Openat and Mknodat syscall emulationSebastian Lackner
This avoids the conversion to an absolute path.
2017-12-01syscallcompat: Fix syscall emulation for absolute pathsSebastian Lackner
For absolute paths, the file descriptor should be ignored. In such a case there is also no need to hold the lock or change the working directory.
2017-12-01fusefrontend: Improve documentation of mkdirWithIv and WriteDirIVSebastian Lackner
As requested in https://github.com/rfjakob/gocryptfs/pull/179
2017-11-30syscallcompat: check that we get NOFOLLOW wherever possibleJakob Unterwurzacher
...and fix the instances where the AT_SYMLINK_NOFOLLOW / O_NOFOLLOW / O_EXCL flag was missing.
2017-11-30syscallcompat: add tests for emulated syscallsJakob Unterwurzacher
Also fix the bug in emulateFchmodat that was found by the tests.
2017-11-30syscallcompat: build emulated syscalls under linux, tooJakob Unterwurzacher
This will allow to test them under linux as well.
2017-11-29fusefrontend: allow_other: close race between mkdir and chownSebastian Lackner
Fixes the same problem as described in 72b975867a3b9bdf53fc2da62e2ba4a328d7e4ab, except for directories instead of device nodes.
2017-11-29fusefrontend: Use Fchownat to implement ChownSebastian Lackner
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