NetBSD/lib/libp2k/p2k.3

.\"     $NetBSD: p2k.3,v 1.4 2009/05/03 20:26:42 pooka Exp $
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.Dd May 3, 2009
.Dt P2K 3
.Os
.Sh NAME
.Nm p2k
.Nd puffs to kernel vfs translation library
.Sh LIBRARY
p2k Library (libp2k, \-lp2k)
.Sh SYNOPSIS
.In rump/p2k.h
.Ft int
.Fo p2k_run_fs
.Fa "const char *vfsname" "const char *devpath" "const char *mountpath"
.Fa "int mntflags" "void *arg" "size_t alen" "uint32_t puffs_flags"
.Fc
.Sh DESCRIPTION
The
.Nm
library translates the puffs protocol to the kernel vfs protocol and
back again.
It can therefore be used to mount and run kernel file system code as
a userspace daemon.
.Pp
Calling the library interface function mounts the file system and,
if succesful, starts handling requests.
The parameters are handled by
.Fn ukfs_mount
(see
.Xr ukfs 3 ) ,
with the exception that
.Fa mountpath
and
.Fa puffs_flags
are handled by
.Xr puffs 3 .
.Pp
The following environment variables affect the behaviour of puffs.
They are useful mostly for debugging purposes.
The flags are environment variables because typically the command line
arguments to
.Nm
utilities are parsed using versions not aware of possible puffs flags:
for example, the
.Xr rump_cd9660 8
arguments are really parsed by
.Xr mount_cd9660 8 .
.Bl -tag -width "XP2K_NOCACHE_PAGE"
.It Dv P2K_DEBUG
Do not detach from tty and print information about each puffs operation.
.It Dv P2K_NODETACH
Do not detach from tty.
.It Dv P2K_NOCACHE_PAGE
Do not use the puffs page cache.
.It Dv P2K_NOCACHE_NAME
Do not use the puffs name cache.
.It Dv P2K_NOCACHE
Do not use the puffs page or name cache.
.El
.Sh SEE ALSO
.Xr puffs 3 ,
.Xr rump 3 ,
.Xr ukfs 3 ,
.Xr rump_cd9660 8 ,
.Xr rump_efs 8 ,
.Xr rump_ext2fs 8 ,
.Xr rump_ffs 8 ,
.Xr rump_hfs 8 ,
.Xr rump_lfs 8 ,
.Xr rump_msdos 8 ,
.Xr rump_nfs 8 ,
.Xr rump_ntfs 8 ,
.Xr rump_syspuffs 8 ,
.Xr rump_tmpfs 8 ,
.Xr rump_udf 8