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/*
Copyright (C) 1994 Free Software Foundation
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
struct trivfs_protid
{
struct port_info pi;
int isroot;
mach_port_t realnode; /* restricted permissions */
struct trivfs_control *cntl;
};
struct trivfs_control
{
struct port_info pi;
mach_port_t underlying;
};
/* The user must define these variables. */
extern int trivfs_fstype;
extern int trivfs_fsid;
extern int trivfs_support_read;
extern int trivfs_support_write;
extern int trivfs_support_exec;
extern int trivfs_protid_porttype;
extern int trivfs_cntl_porttype;
/* The user must define this function. This should modify a struct
stat (as returned from the underlying node) for presentation to
callers of io_stat. It is permissable for this function to do
nothing. */
void trivfs_modify_stat (struct stat *);
/* Call this to create a new control port and return a receive right
for it; exactly one send right must be created from the returned
receive right. UNDERLYING is the underlying port, such as fsys_startup
returns as the realnode. */
mach_port_t trivfs_handle_port (mach_port_t realnode);
/* Install these as libports cleanroutines for trivfs_protid_porttype
and trivfs_cntl_porttype respectively. */
void trivfs_clean_protid (void *);
void trivfs_clean_cntl (void *);
/* This demultiplees messages for trivfs ports. */
int trivfs_demuxer (mach_msg_header_t *, mach_msg_header_t *);
error_t trivfs_goaway (int);
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