putter(9) [netbsd man page]

PUTTER(9)						   BSD Kernel Developer's Manual						 PUTTER(9)

NAME

     putter -- Pass-to-Userspace Transporter

DESCRIPTION

     The putter subsystem is used for request-response handling of userspace components.  It currently provides routines for associating a file
     descriptor with a subsystem data structure instance and I/O routines.  Users of the facility must fill out the callbacks in struct putter_ops
     to integrate with putter.

SEE ALSO

     pud(4), puffs(4)

BUGS

     Under construction.  Interfaces may and will change.

BSD
								 November 21, 2007							       BSD

RUMP_CD9660(8)						    BSD System Manager's Manual 					    RUMP_CD9660(8)

NAME

     rump_cd9660 -- mount a cd9660 image with a userspace server

SYNOPSIS

     file-system PUFFS
     pseudo-device putter

     rump_cd9660 [options] image mountpoint

DESCRIPTION

     NOTE! This manual page describes features specific to the rump(3) file server.  Please see mount_cd9660(8) for a full description of the
     available command line options.

     The rump_cd9660 utility can be used to mount cd9660 file systems.	It uses rump(3) and p2k(3) to facilitate running the file system as a
     server in userspace.  As opposed to mount_cd9660(8), rump_cd9660 does not use file system code within the kernel and therefore does not
     require kernel support except puffs(4).  Apart from a minor speed penalty there is no downside with respect to in-kernel code.

     rump_cd9660 does not require using vnconfig(8) for mounts from regular files and the file path can be passed directly as the image parameter.
     In fact, the use of vnconfig(8) is discouraged, since it is unable to properly deal with images on sparse files.

     In case the image contains multiple partitions, the desired partition must be indicated by appending the token ``%DISKLABEL:p%'' to the image
     path.  The letter ``p'' specifies the partition as obtained via disklabel(8).  For example, to mount partition ``e'' from image /tmp/wd0.img,
     use ``/tmp/wd0.img%DISKLABEL:e%''.

     It is recommended that untrusted file system images be mounted with rump_cd9660 instead of mount_cd9660(8).  Corrupt file system images com-
     monly cause the file system to crash the entire kernel, but with rump_cd9660 only the userspace server process will dump core.

     To use rump_cd9660 via mount(8), the flags -o rump and -t cd9660 should be given.	Similarly, rump_cd9660 is used instead of mount_cd9660(8)
     if ``rump'' is added to the options field of fstab(5).

SEE ALSO

     p2k(3), puffs(3), rump(3), mount_cd9660(8)

HISTORY

     The rump_cd9660 utility first appeared in NetBSD 5.0.

BSD
								 November 21, 2010							       BSD