Copyright (c) 2010 Emmanuel Dreyfus. All rights reserved.
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.Dd August 12, 2010 .Os .Dt PERFUSED 8 .Sh NAME .Nm perfused .Nd "PUFFS Enabled Relay to FUSE Daemon" .Sh SYNOPSIS .Nm .Op Fl f .Op Fl d Ar types .Op Fl s .Sh DESCRIPTION .Nm is a userland daemon mplementing the FUSE kernel level API. It creates a
a /dev/fuse socket for FUSE filesystem daemons to conenct to. .Nm takes care of mouting the filesystem using .Xr puffs 3 .
p When the kernel sends a .Xr puffs 3 operation for the mounted filesystem, .Nm will translate it into a FUSE request, and will send it to the filesystem daemon through
a /dev/fuse . The FUSE reply will be converted back into a .Xr puffs 3 reply and will be relayed to the kernel.
p FUSE filesystems daemons must be modified so that they request .Nm for performing the .Xr mount 2 system call instead of doing it on their own. This is done by replacing in the sources .Xr mount 2 and the .Xr open 2 call for
a /dev/fuse by .Fn perfuse_mount and .Fn perfuse_open . .Xr libperfuse 3 must be used at link time. Most FUSE filesystem daemons use .Nm libfuse and will work unmodified, provided the modification is done in .Nm libfuse itself .
p The following options are availlable: l -tag -width indent t Fl f Do not fork and stay in the foreground. t Fl d Ar types Print additionnal debug information. .Ar types is a comma-separated list of informaton type to print: l -tag -width indent t Ar puffs Display PUFFS requests and replies t Ar fuse Display FUSE requests and replies t Ar dump Dump content of FUSE frames t Ar fh Display filehandles activity t Ar reclaim Display reclaim activity t Ar readdir Display readdir activity t Ar requeue Display requeue activity t Ar sync Display dirty flags and sync operations .El t Fl s Enable debug output only when receiving SIGINFO. .El .Sh ERRORS The program logs to the syslog daemon as facility .Dq daemon . For detailed debugging use the .Fl d (debug) option. .Sh SEE ALSO .Xr puffs 4 , .Xr mount 2 , .Xr perfuse_mount 3 .Sh AUTHORS The program was written by .An Emmanuel Dreyfus .Aq manu@NetBSD.org .