Some macOS specific features require FUSE API modifications and
extensions that break compatibility with the vanilla FUSE API. Setting
the compile-time flag FUSE_DARWIN_ENABLE_EXTENSIONS to 0, when building
a file system, disables those API extensions. By default, the macOS
specific API modifications and extensions are enabled.
macFUSE will create the mounpoint (in case it does not exist) before
mounting the volume. This allows unprivileged users to mount volumes
under /Volumes.
Windows native OpenSSH has alternative behavior for standard I/O
descriptors, which can be selected through the OPENSSH_STDIO_MODE
environement variable. Setting it to "nonsock" is required for
sshfs compatibility.
See https://github.com/PowerShell/openssh-portable/pull/759
for details.
Uncached and cached results for readdir were inconsistent -- the former
returned correct stat info for directory entries while the latter
didn't. That's because only names of entries were saved in cache without
stat info. In turn this leads to issues like
https://github.com/junegunn/fzf/issues/3832 since directory traversal
library (https://github.com/charlievieth/fastwalk in this case) relies
on proper stat info returned by readdir. Hence when unchached result was
returned it gave proper outcome, while with cached result it was wrong.
Cache stat info next to entry name to fix the issue. While file
attributes are saved in cache already, they use full path as key. To
avoid potentially plenty of allocations, string copying and cache
lookups to get each attr, let's keep a copy of stat struct independently
to be on the fast path.
"sshfs -o vsock=CID:PORT" will cause sshfs to connect directly to the
given vsock, bypassing ssh, and allowing high performance sshfs mounts
of a VM guest.
Added a secondary check so if a mkdir request fails with EPERM an access request will be tried - returning EEXIST if the access was successful. This matches the correct behaviour expected by applications such as git.
Co-authored-by: Peter Belm <peter.belm@dataalchemist.co.uk>
Fix the following build failure with gcc 4.8:
../sshfs.c:1092:2: error: 'for' loop initial declarations are only allowed in C99 mode
for (int i = 0; i < sshfs.max_conns; i++) {
^
This build failure has been added with
8822b60d9d
Fixes:
- http://autobuild.buildroot.org/results/2dbdc579c55543175716d5f739cabe2ad0864ed6
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
If ssh is configured to use "Match exec" and the previous working
directory is the mount point, then the shell (bash) hangs calling
stat() on OLDPWD.
Unset OLDPWD so that this doesn't happen.
Fixes#206.
The -o max_conns=N option causes multiple SSH processes and response processing threads to
be created. This means that e.g. reading a large file no longer blocks all access to the
filesystem.
The connection is chosen by checking the per-connection statistics:
1. Choose connection with least outstanding requests; if it's a tie,
2. choose connection with least directory handles; if it's a tie,
3. choose connection with least file handles; if it's a tie,
4. choose connection which has already been established.
The implementation assumes that the max_conns values will be small; it
uses linear search.
Example benchmark:
With single connection:
$ sshfs -o max_conns=1,workaround=nobuflimit ebox: mnt
$ cat mnt/tmp/bigfile > /dev/null &
$ time find mnt > /dev/null
real 1m50.432s
user 0m0.133s
sys 0m0.467s
With multiple connections:
$ ~/in-progress/sshfs/build/sshfs -o max_conns=5,workaround=nobuflimit ebox: mnt
$ cat mnt/tmp/bigfile > /dev/null &
$ time find mnt > /dev/null
real 1m15.338s
user 0m0.142s
sys 0m0.491s
This feature was implemented to large extend by Timo Savola <timo.savola@iki.fi>. Thanks
to CEA.fr for sponsoring the remaining work to complete this feature and integrate it into
SSHFS!
Variables of this kind are created in sshfs_open_common() and freed
in sshfs_release(). Since sshfs_release() calls sshfs_flush(), there
can be no pending write requests before at the time of freeing, so
there is no need for reference counting.
Benjamin Fleischer
h4sh5
Haoxi Tan
Emmanuel Dreyfus
Jan Palus
h4sh5
Thomas Merz
Nikolaus Rath
Peter Wienemann
easy
Matthew Berginski
Kim Brose
Antonio Rojas
Cam Cope
a1346054
Andrew Stone
Peter Belm
Junichi Uekawa
Fabrice Fontaine
Junichi Uekawa
Simon Arlott
bjoe2k4
Dominique Martinet
Timo Savola