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Before FUSE 2.9, FUSE had to emulate unlink() if a file was still open
via renaming to a hidden file. This was due to the requirement that a
valid "path" argument must be submitted for many FUSE operations. FUSE
2.9 introduced the flag_nullpath_ok and flag_nopath flags that allow a
FUSE file system to signal to FUSE that the "path" argument may be NULL
in certain operations.
sshfs doesn't require paths if the cache isn't used so communicate
that information to the FUSE layer.
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OpenSSH implements fsync() via the extension "fsync@openssh.com". This
change uses that extension when receiving a FUSE fsync request.
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Allow the user to customize the cache regular and minimum clean intervals
as flags via the new cache_clean_interval and cache_min_clean_interval
options.
While doing this, rename the internal variables and constants to suffix
them with their unit (seconds).
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Allow the user to customize the size of the sshfs cache by adding a new
max_cache_size flag and turning the hardcoded constant into a variable.
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Revision b4023a19 added an mlock call to ensure the sshfs password is kept
in memory, but did so only for OS X. This is a good idea in general, so
let's remove the condition.
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Revision b4023a19dd7ec7a099d2e0df491547cf3bb6bec3, which imported the
MacFUSE-specific sshfs fixes into osxfuse-sshfs, added a lock to handle
the refs reference counter of the sshfs_file structure. However, this
lock was only added for OS X, which is a very strange thing to do.
One may think that this was only because MacFUSE 2.2 had some semantics
that differed from regular FUSE, and that would have been quite stupid
for compatibility reasons. A few simple tests show no issues after
removing this lock, so let's keep it out for now. If things break, we
know what to look at.
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Move the logic to determine which values to stick into the manual page
to the configure script and replace the logic to build the sshfs.1
manual page with sed instead of abusing cpp.
I'm not using AC_OUTPUT here because this macro is typically used to
generate support build files. Final artifacts of the build should, in
general, be built by the Makefile itself.
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Makefile.am always sets LIBDIR in CPPFLAGS. There is no need for sshfs.c
to redefine it to a bogus value when not present, and much less to only
do so for the Darwin case only.
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cache_enabled leaked the cache.on setting from the cache module abstraction
back into sshfs, and it only did so for the Darwin case.
This hack was being used to avoid calling cache_add_attr and cache_invalidate
when the cache was disabled... but these two functions already do nothing when
in that case: there is no need to do a second check in the caller.
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Now that we are unifying osxfuse's sshfs into libfuse's version, there
should not be two different version identifiers. Drop osxfuse's one.
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Pull in all changes from osxfuse's fork of sshfs into libfuse's sshfs.
There need not be two different copies of this codebase, particularly
because libfuse's version is already autoconf-ified and can support
multiple platforms.
The merge is mostly clean with just a few manual edits to resolve
conflicts.
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read from stdin to 1024 characters.
Reported by: Mario A. Valdez-Ramirez.
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sshfs-fuse always returned 0 in access(file, X_OK) calls, causing nautilus
to prompt "Do you want to run "login.defs", or display its contents?" for
text files that were not executable.
Reported by: Alkis Georgopoulos
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Conflicts:
sshfs.c
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Accessing directories with many (several thousand) files over sshfs is
slow, because most SFTP server implementations only send a fixed amount
of entries per READDIR command (e.g. OpenSSH SFTP: 100 entries). This
patch implements sending several READDIR commands in parallel, in order
to speed up directory listing in these cases.
An option (sync_readdir) is also added so that users can easily switch
on the old behaviour.
The performance improvement is astonishing. Accessing a directory with
30k files in from a remote server that has a RTT of 15ms via OpenSSH
SFTP:
Synchronous readdir:
$ ./sshfs -o sync_readdir host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test | wc -l
30000
"ls" -1 /mnt/temp/test 0.07s user 0.01s system 1% cpu 6.928 total
Asynchronous readdir:
$ ./sshfs host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test | wc -l
30000
"ls" -1 /mnt/temp/test 0.07s user 0.01s system 12% cpu 0.605 total
Accessing a directory with 100k files shows even more dramatic
improvement:
Synchronous readdir:
$ ./sshfs -o sync_readdir host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test2 | wc -l
100000
"ls" -1 /mnt/temp/test2 0.67s user 1.22s system 0% cpu 3:31.56 total
Asynchronous readdir:
$ ./sshfs host:/tmp /mnt/temp
$ time "ls" -1 /mnt/temp/test2 | wc -l
100000
"ls" -1 /mnt/temp/test2 0.20s user 0.03s system 14% cpu 1.631 total
This can easily be reproduced by creating a directory on a server and
touching a lot of files in it:
$ mkdir /tmp/test
$ cd /tmp/test
$ for i in $(seq 1 30000); do touch $i; done
Signed-off-by: Alexander Neumann <alexander@bumpern.de>
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Reported by Louis-David Mitterrand
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Reported by Ross Lagerwall
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Conflicts:
ChangeLog
configure.ac
sshfs.1.in
sshfs.c
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Reported by Joachim Kopp
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In the past we relied on libosxfuse including a working unnamed semaphore
implmentation for Mac OS X. This will not be the case in future releases of
OSXFUSE, therefore we need to add our own implementation.
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This prevents I/O error being returned after a successful mount if a symlink is
mounted.
Reported by Bart Friederichs
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The only difference between version 2.4.0 and 2.4.1 is the updated man page to
reflect Darwin/OS X specific changes to upstream SSHFS.
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otherwise, other local users could change the mapping, and gain access
to things they shouldn't
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Add -o slave. This option routes the sftp communication over stdin and stdout,
bypassing SSH and network.
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Verified with `cat -vet` and `grep '\s$'`
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getline() isn't widely available yet, use fgets() instead
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add a '-o nomap=ignore|error' option, which defaults to 'error'
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UID/GID mapping had been enabled in previous versions of SSHFS for MacFUSE/
OSXFUSE by default. This is the expected behavior.
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otherwise, other local users could change the mapping, and gain access
to things they shouldn't
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Add -o slave. This option routes the sftp communication over stdin and stdout,
bypassing SSH and network.
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Verified with `cat -vet` and `grep '\s$'`
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These options allow you to create a pair of local files, with
username:uid/groupname:gid pairs, one per line. Alternatively, files can
be in standard /etc/passwd / /etc/group format.
The uid/gids are for the remote server, their local counterparts are
looked up with a local getpwnam/getgrnam call. Any stat() calls will
show with the remapped local uid/gid, and any chown() calls will be
remapped back to the remote uid/gid.
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s/FD_CLOESEC/FD_CLOEXEC/
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Reported by Mike Kelly
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Reported and tested by Vivenzio Pagliari
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Also don't limit the kernel to 64k reads and writes, rather split into
32k sized chunks and send them to the server all at once. This is
more efficient and less demanding from the server.
Reported by Ludovic Courtès. Fix suggested by Niels Möller
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Patch by E. Kuemmerle
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Remove "-oPreferredAuthentications" from ssh options if the
"password_stdin" option is used. Reported by E. Kuemmerle
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Add "-oworkaround=fstat" for SFTP servers which don't support
the FSTAT message.
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