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authorMartin Pärtel <martin.partel@gmail.com>2012-09-15 16:06:00 +0300
committerMartin Pärtel <martin.partel@gmail.com>2012-09-15 16:06:00 +0300
commit04e70e1b760535bf2860130cc4c69d31702e28c7 (patch)
tree4f0827e0b2ec8b0b4d6c203c10e2a3d8c2b68786 /src/bindfs.1
parent086cab2b43c1abb603f7da32df663852cad81262 (diff)
downloadbindfs-04e70e1b760535bf2860130cc4c69d31702e28c7.tar.gz
Be single-threaded by default. Documented a race condition.
Diffstat (limited to 'src/bindfs.1')
-rw-r--r--src/bindfs.125
1 files changed, 18 insertions, 7 deletions
diff --git a/src/bindfs.1 b/src/bindfs.1
index cd822bc..b420f21 100644
--- a/src/bindfs.1
+++ b/src/bindfs.1
@@ -239,6 +239,12 @@ The underlying file's ctime will still be updated normally.
.B \-\-hide-hard-links, \-o hide-hard-links
Shows the hard link count of all files as 1.
+.TP
+.B \-\-multithreaded, \-o multithreaded
+Run bindfs in multithreaded mode. While bindfs is designed to be
+otherwise thread-safe, there is currently a race condition that may pose
+a security risk for some use cases. See \fB\%BUGS\fP below.
+
.SH FUSE OPTIONS
.TP
@@ -260,10 +266,6 @@ Enable debug output (implies \-f).
.B \-f
Foreground operation.
-.TP
-.B \-s
-Disable multithreaded operation. bindfs should be thread-safe.
-
.SH PERMISSION SPECIFICATION
The \fB\-p\fP option takes a comma\- or colon\-separated list of either octal
@@ -349,13 +351,22 @@ MacFuse caches file contents by default.
This means that changes in source files are not always immediately visible under the mount point.
\fB\-o nolocalcaches\fP can be used to disable the cache.
-When using \fB\-\-mirror[-only]\fP on a group, bindfs won't see changes to the group's member list.
+When using \fB\-\-mirror[-only] @somegroup\fP, bindfs won't see changes to the group's member list.
Sending bindfs a \fBSIGUSR1\fP signal will make it reread the user database.
.SH BUGS
-Please report to the issue tracker on the project home page at
-http://code.google.com/p/bindfs/
+If bindfs is run in multithreaded mode (with the
+\fB\-\-multithreaded\fP option) then it's possible for another process
+to briefly see a file with an incorrect owner, group or permissions.
+This may constitute a security risk if you rely on bindfs to reduce
+permissions on new files. For this reason, as of version 1.11
+bindfs runs in single-threaded mode by default.
+
+Please report bugs to the issue tracker on the project home page at
+\fBhttp://code.google.com/p/bindfs/\fP
+Send patches as pull requests to \fBhttps://github.com/mpartel/bindfs\fP or
+by e-mail to \fBmartin dot partel at gmail dot com\fP.
.SH AUTHOR