167 lines
4.5 KiB
C
167 lines
4.5 KiB
C
/* $NetBSD: dtfs.c,v 1.15 2007/01/26 23:02:05 pooka Exp $ */
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/*
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* Copyright (c) 2006 Antti Kantee. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Delectable Test File System: a simple in-memory file system which
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* demonstrates the use of puffs.
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* (a.k.a. Detrempe FS ...)
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*/
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#include <sys/types.h>
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#include <err.h>
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#include <mntopts.h>
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#include <puffs.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "dtfs.h"
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#ifdef DEEP_ROOTED_CLUE
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#define FSNAME "detrempe"
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#else
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#define FSNAME "dt"
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#endif
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static struct puffs_usermount *pu;
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static void usage(void);
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static void
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usage()
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{
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errx(1, "usage: %s [-bs] [-o mntopt]<5D>[-o puffsopt] mountpath",
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getprogname());
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}
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/*
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* This is not perhaps entirely kosher, but this is test file system,
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* so I'm really not concerned.
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*/
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static void
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dosuspend(int v)
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{
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puffs_fs_suspend(pu);
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}
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int
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main(int argc, char *argv[])
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{
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extern char *optarg;
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extern int optind;
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struct dtfs_mount dtm;
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struct puffs_pathobj *po_root;
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struct puffs_ops *pops;
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mntoptparse_t mp;
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int pflags, lflags, mntflags;
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int ch;
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setprogname(argv[0]);
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pflags = lflags = mntflags = 0;
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while ((ch = getopt(argc, argv, "bo:s")) != -1) {
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switch (ch) {
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case 'b': /* build paths, for debugging the feature */
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pflags |= PUFFS_FLAG_BUILDPATH;
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break;
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case 'o':
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mp = getmntopts(optarg, puffsmopts, &mntflags, &pflags);
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if (mp == NULL)
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err(1, "getmntopts");
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freemntopts(mp);
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break;
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case 's': /* stay on top */
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lflags |= PUFFSLOOP_NODAEMON;
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break;
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default:
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usage();
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/*NOTREACHED*/
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}
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}
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if (pflags & PUFFS_FLAG_OPDUMP)
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lflags |= PUFFSLOOP_NODAEMON;
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argc -= optind;
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argv += optind;
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if (argc != 1)
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usage();
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PUFFSOP_INIT(pops);
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PUFFSOP_SET(pops, dtfs, fs, statvfs);
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PUFFSOP_SETFSNOP(pops, unmount);
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PUFFSOP_SETFSNOP(pops, sync);
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PUFFSOP_SET(pops, dtfs, fs, suspend);
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PUFFSOP_SET(pops, dtfs, node, lookup);
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PUFFSOP_SET(pops, dtfs, node, getattr);
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PUFFSOP_SET(pops, dtfs, node, setattr);
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PUFFSOP_SET(pops, dtfs, node, create);
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PUFFSOP_SET(pops, dtfs, node, remove);
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PUFFSOP_SET(pops, dtfs, node, readdir);
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PUFFSOP_SET(pops, dtfs, node, mkdir);
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PUFFSOP_SET(pops, dtfs, node, rmdir);
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PUFFSOP_SET(pops, dtfs, node, rename);
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PUFFSOP_SET(pops, dtfs, node, read);
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PUFFSOP_SET(pops, dtfs, node, write);
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PUFFSOP_SET(pops, dtfs, node, link);
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PUFFSOP_SET(pops, dtfs, node, symlink);
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PUFFSOP_SET(pops, dtfs, node, readlink);
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PUFFSOP_SET(pops, dtfs, node, mknod);
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PUFFSOP_SET(pops, dtfs, node, inactive);
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PUFFSOP_SET(pops, dtfs, node, reclaim);
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if ((pu = puffs_mount(pops, argv[0], mntflags, FSNAME, &dtm, pflags, 0))
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== NULL)
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err(1, "mount");
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if (signal(SIGUSR1, dosuspend) == SIG_ERR)
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warn("cannot set suspend sighandler");
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/* init & call puffs_start() */
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if (dtfs_domount(pu) != 0)
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errx(1, "dtfs_domount failed");
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/* XXX: wrong order, but I need to refactor this further anyway */
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po_root = puffs_getrootpathobj(pu);
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po_root->po_path = argv[0];
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po_root->po_len = strlen(argv[0]);
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if (puffs_mainloop(pu, lflags) == -1)
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err(1, "mainloop");
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return 0;
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}
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