hardcoresushi/libgocryptfs
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15 Commits

Author SHA1 Message Date
Jakob Unterwurzacher
c943ed32aa syscallcompat: add getxattr fastpaths 
The allocations from Lgetxattr were #1 in the tar extract
allocation profile (caused by security.capability lookups).
No more!

$ benchstat old.txt new.txt
name         old time/op  new time/op  delta
Lgetxattr-4  15.2µs ± 0%   1.8µs ± 0%   ~     (p=1.000 n=1+1)

$ ./benchmark.bash
Testing gocryptfs at /tmp/benchmark.bash.H8p: gocryptfs v2.0-beta1-4-g95ea738-dirty; go-fuse v2.0.4-0.20200908172753-0b6cbc515082 => github.com/rfjakob/go-fuse/v2 v2.0.4-0.20201015204057-88b12c99f8af; 2020-10-18 go1.15.3 linux/amd64
/tmp/benchmark.bash.H8p.mnt is a mountpoint
WRITE: 262144000 bytes (262 MB, 250 MiB) copied, 0,520109 s, 504 MB/s
READ:  262144000 bytes (262 MB, 250 MiB) copied, 0,255672 s, 1,0 GB/s
UNTAR: 30,238
MD5:   12,721
LS:    10,038
RM:    16,536
 2020-10-18 00:25:42 +02:00
Jakob Unterwurzacher
83a324a46b syscallcompat: add Lgetxattr benchmark 2020-10-16 20:04:22 +02:00
Jakob Unterwurzacher
20140e24ed tests: reduce noise on MacOS 
This should get rid of

    Openat: O_NOFOLLOW missing: flags = 0x0
    Fchmodat: adding missing AT_SYMLINK_NOFOLLOW flag
    sys_common_test.go:203: chmod on symlink should have failed, but did not. New mode=0333
    UnmountErr: "[...]/057376762.mnt" was not found in MountInfo, cannot check for FD leak

and add some context to

    --- FAIL: TestUtimesNano (0.00s)
    matrix_test.go:628: no such file or directory

See https://github.com/rfjakob/gocryptfs/pull/343#issuecomment-453888006
for full test output
 2019-01-14 22:11:15 +01:00
Jakob Unterwurzacher
6542ddd2f9 syscallcompat: fix FchmodatNofollow tests 
FchmodatNofollow dropped the flags parameter.
 2019-01-14 21:57:24 +01:00
Jakob Unterwurzacher
a7d59032d3 syscallcompat: rework Fchmodat to FchmodatNofollow 
We never want Fchmodat to follow symlinks, so follow what
Qemu does, and call our function FchmodatNofollow.
 2019-01-14 21:54:16 +01:00
Sebastian Lackner
a9d8eb49ef syscallcompat: Drop Fstatat emulation on macOS. 2019-01-14 21:27:28 +01:00
Sebastian Lackner
4134ff7570 syscallcompat: Drop Mkdirat emulation on macOS. 2019-01-14 21:27:28 +01:00
Sebastian Lackner
7b0d56fe98 syscallcompat: Drop Symlinkat emulation on macOS. 2019-01-14 21:27:28 +01:00
Sebastian Lackner
229a9da74b syscallcompat: Drop Unlinkat emulation on macOS. 2019-01-14 21:27:28 +01:00
Sebastian Lackner
42bf6d1c68 syscallcompat: Drop Renameat emulation on macOS. 2019-01-14 21:27:28 +01:00
Sebastian Lackner
da557702d7 syscallcompat: Drop Openat emulation on macOS. 2019-01-14 21:27:28 +01:00
Jakob Unterwurzacher
8253c55386 tests: add Fchmodat test 
Test that we handle symlinks correctly.
 2019-01-07 23:07:53 +01:00
Jakob Unterwurzacher
57a5a8791f tests: syscallcompat: allow failure for symlinks > 1000 
MacOS and old XFS versions do not support very long symlinks,
but let's not make the tests fail because of that.

https://github.com/rfjakob/gocryptfs/issues/267
 2018-10-11 19:45:47 +02:00
Jakob Unterwurzacher
c5243fc79e MacOS: don't test symlinks longer than 1000 bytes 
The limit is much lower than on Linux.

https://github.com/rfjakob/gocryptfs/issues/213
 2018-02-28 20:40:08 +01:00
Jakob Unterwurzacher
f97494e89b syscallcompat: add Readlinkat 
We need readlinkat to implement Readlink
symlink-race-free.
 2017-12-06 21:07:24 +01:00