gocryptfs/internal/syscallcompat, branch v1.4.3Mirror of gocryptfs source code on Githubhttp://nuetzlich.net/cgit/gocryptfs/atom?h=v1.4.32017-12-25T14:07:37+00:00fusefrontend: Use Linkat syscall to implement Link2017-12-25T14:07:37+00:00Sebastian Lackner2017-12-12T13:42:49+00:00urn:sha1:a85dbcab38bcad0ef713187a637a7023d016829fsyscallcompat: add Faccessat2017-12-06T23:05:28+00:00Jakob Unterwurzacher2017-12-06T23:05:28+00:00urn:sha1:2ceef01afecafbd4aa80276869993cb53bdadcf4
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().
syscallcompat: add Readlinkat2017-12-06T20:07:24+00:00Jakob Unterwurzacher2017-12-06T20:07:24+00:00urn:sha1:f97494e89bff7b15d1be5f4b2d047382a54e6094
We need readlinkat to implement Readlink
symlink-race-free.
syscallcompat: add Darwin version of unix2syscall2017-12-05T23:18:38+00:00Jakob Unterwurzacher2017-12-05T23:18:38+00:00urn:sha1:6beb45e5b74aa465136687f00f2b5a51bee90395
The "Atim" field is called "Atimespec" on Darwin,
same for Mtim and Ctim.
fusefrontend_reverse: secure GetAttr against symlink races2017-12-05T23:06:31+00:00Jakob Unterwurzacher2017-12-05T23:05:28+00:00urn:sha1:a3bdc2bf2b7b7ed34e2d68fc698e1dd136f2e67a
...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
syscallcompat: OpenNofollow: use O_DIRECTORY flag2017-12-05T22:31:07+00:00Jakob Unterwurzacher2017-12-05T22:31:07+00:00urn:sha1:03bf604fc08abc9bb2d75bde21c96c9df4894a3b
...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.
syscallcompat: OpenNofollow: fix relPath="" case2017-12-05T22:08:55+00:00Jakob Unterwurzacher2017-12-05T22:08:55+00:00urn:sha1:e604ce6deaf0ba4407c54293a338673ed06f833a
Sometimes want to open baseDir itself. This case
was broken, fix it.
syscallcompat: convert Getdents to fd input, add emulation2017-12-03T18:33:26+00:00Jakob Unterwurzacher2017-12-03T16:57:08+00:00urn:sha1:70bcf58a9bda5f95a3037fb785858f5d7ce3f930
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.
syscallcompat: add Fstatat + emulation + test2017-12-03T18:32:59+00:00Jakob Unterwurzacher2017-12-03T16:53:14+00:00urn:sha1:e33593d30d9dee6fd6b0e7c0d01832e478815d88
Fstatat has recently been added to x/sys/unix. Make
it available for use in gocryptfs.
syscallcompat: add OpenNofollow helper2017-12-02T19:35:44+00:00Jakob Unterwurzacher2017-12-02T19:35:44+00:00urn:sha1:91e042e2bafbec3271d8c79005f7dc8229a16a10
OpenNofollow = symlink-race-safe Open
Prepares fixing https://github.com/rfjakob/gocryptfs/issues/165