Pre-IFS commit. Commit IFS-aware fsck and mount utilities.

mount_ifs: repocopy of sbin/mount, with most of the intelligence ripped out
           and "ufs" replaced with "ifs" in the right places. It will only
           mount a single filesystem, rather than the -t <type> magic that
           our real mount does.

fsck_ifs:  repocopy of sbin/fsck_ffs, but the directory structure stuff
           (pass2 and some refcount checks) has been #ifdef'ed out.

src/sbin/Makefile: Build these two utilities

There is probably cruft code left in both which can be removed at a later
date, especially in mount_ifs, but I trust that people will not try
mount_ifs -a ..

Note: there are no man pages installed for these two commands as I haven't
actually written them yet.

sbin/Makefile

@@ -17,6 +17,7 @@ SUBDIR=	adjkerntz \
 	dumpfs \
 	dumpon \
 	fsck \
+	fsck_ifs \
 	fsck_ffs \
 	fsdb \
 	fsirand \
@@ -37,6 +38,7 @@ SUBDIR=	adjkerntz \
 	mount \
 	mount_cd9660 \
 	mount_ext2fs \
+	mount_ifs \
 	mount_msdos \
 	mount_nfs \
 	mount_ntfs \

sbin/fsck_ifs/Makefile

@@ -1,10 +1,8 @@
 # $FreeBSD$
 #	@(#)Makefile	8.2 (Berkeley) 4/27/95
 
-PROG=	fsck_ffs
-LINKS+=	${BINDIR}/fsck_ffs ${BINDIR}/fsck_ufs
-LINKS+=	${BINDIR}/fsck_ffs ${BINDIR}/fsck_4.2bsd
-MAN8=	fsck_ffs.8
+PROG=	fsck_ifs
+NOMAN=	true
 SRCS=	dir.c fsutil.c inode.c main.c pass1.c pass1b.c pass2.c pass3.c pass4.c \
 	pass5.c setup.c utilities.c ffs_subr.c ffs_tables.c
 CFLAGS+=-W

sbin/fsck_ifs/main.c

@@ -241,9 +241,12 @@ checkfilesys(filesys, mntpt, auxdata, child)
 	/*
 	 * 2: traverse directories from root to mark all connected directories
 	 */
+#ifdef NOTFORIFS
 	if (preen == 0)
 		printf("** Phase 2 - Check Pathnames\n");
 	pass2();
+#endif
+	printf("** Skipping phase 2 for IFS\n");
 
 	/*
 	 * 3: scan inodes looking for disconnected directories
@@ -345,7 +348,7 @@ checkfilesys(filesys, mntpt, auxdata, child)
 			args.fspec = 0;
 			args.export.ex_flags = 0;
 			args.export.ex_root = 0;
-			ret = mount("ufs", mntbuf->f_mntonname,
+			ret = mount("ifs", mntbuf->f_mntonname,
 			    mntbuf->f_flags | MNT_UPDATE | MNT_RELOAD, &args);
 			if (ret == 0)
 				return (0);
@@ -380,7 +383,7 @@ getmntpt(name)
 		return (NULL);
 	mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
 	for (i = 0; i < mntsize; i++) {
-		if (strcmp(mntbuf[i].f_fstypename, "ufs") != 0)
+		if (strcmp(mntbuf[i].f_fstypename, "ifs") != 0)
 			continue;
 		devname = mntbuf[i].f_mntfromname;
 		if (*devname != '/') {

sbin/fsck_ifs/pass4.c

@@ -73,9 +73,12 @@ pass4()
 			case DFOUND:
 				n = inoinfo(inumber)->ino_linkcnt;
 				if (n) {
+#if NOTFORIFS
 					adjust(&idesc, (short)n);
+#endif
 					break;
 				}
+#if NOTFORIFS
 				for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) {
 					if (zlnp->zlncnt == inumber) {
 						zlnp->zlncnt = zlnhead->zlncnt;
@@ -86,10 +89,10 @@ pass4()
 						break;
 					}
 				}
+#endif
 				break;
 
 			case DSTATE:
-				clri(&idesc, "UNREF", 1);
 				break;
 
 			case DCLEAR:

sbin/fsck_ifs/setup.c

@@ -292,10 +292,12 @@ setup(dev)
 	}
 	numdirs = sblock.fs_cstotal.cs_ndir;
 	dirhash = numdirs;
+#if NOTFORIFS
 	if (numdirs == 0) {
 		printf("numdirs is zero, try using an alternate superblock\n");
 		goto badsb;
 	}
+#endif
 	inplast = 0;
 	listmax = numdirs + 10;
 	inpsort = (struct inoinfo **)calloc((unsigned)listmax,

sbin/mount_ifs/Makefile

@@ -1,9 +1,9 @@
 #	@(#)Makefile	8.6 (Berkeley) 5/8/95
 # $FreeBSD$
 
-PROG=	mount
-SRCS=	mount.c mount_ufs.c getmntopts.c vfslist.c
-MAN8=	mount.8
+PROG=	mount_ifs
+SRCS=	mount.c mount_ufs.c getmntopts.c
+NOMAN=	true
 # We do NOT install the getmntopts.3 man page.
 
 .include <bsd.prog.mk>

sbin/mount_ifs/extern.h

@@ -26,9 +26,5 @@
  * $FreeBSD$
  */
 
-/* vfslist.c */
-int checkvfsname __P((const char *, const char **));
-const char **makevfslist __P((char *));
-
 /* mount_ufs.c */
-int mount_ufs __P((int, char *const *));
+int mount_ifs __P((int, char *const *));

sbin/mount_ifs/mount.c

@@ -134,179 +134,8 @@ main(argc, argv)
 	int all, ch, i, init_flags, mntsize, rval, have_fstab;
 	char *options;
 
-	all = init_flags = 0;
-	options = NULL;
-	vfslist = NULL;
-	vfstype = "ufs";
-	while ((ch = getopt(argc, argv, "adfo:prwt:uv")) != -1)
-		switch (ch) {
-		case 'a':
-			all = 1;
-			break;
-		case 'd':
-			debug = 1;
-			break;
-		case 'f':
-			init_flags |= MNT_FORCE;
-			break;
-		case 'o':
-			if (*optarg)
-				options = catopt(options, optarg);
-			break;
-		case 'p':
-			fstab_style = 1;
-			verbose = 1;
-			break;
-		case 'r':
-			init_flags |= MNT_RDONLY;
-			break;
-		case 't':
-			if (vfslist != NULL)
-				errx(1, "only one -t option may be specified");
-			vfslist = makevfslist(optarg);
-			vfstype = optarg;
-			break;
-		case 'u':
-			init_flags |= MNT_UPDATE;
-			break;
-		case 'v':
-			verbose = 1;
-			break;
-		case 'w':
-			init_flags &= ~MNT_RDONLY;
-			break;
-		case '?':
-		default:
-			usage();
-			/* NOTREACHED */
-		}
-	argc -= optind;
-	argv += optind;
-
-#define	BADTYPE(type)							\
-	(strcmp(type, FSTAB_RO) &&					\
-	    strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ))
-
-	rval = 0;
-	switch (argc) {
-	case 0:
-		if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0)
-			err(1, "getmntinfo");
-		if (all) {
-			while ((fs = getfsent()) != NULL) {
-				if (BADTYPE(fs->fs_type))
-					continue;
-				if (checkvfsname(fs->fs_vfstype, vfslist))
-					continue;
-				if (hasopt(fs->fs_mntops, "noauto"))
-					continue;
-				if (!(init_flags & MNT_UPDATE) &&
-				    ismounted(fs, mntbuf, mntsize))
-					continue;
-				if (mountfs(fs->fs_vfstype, fs->fs_spec,
-				    fs->fs_file, init_flags, options,
-				    fs->fs_mntops))
-					rval = 1;
-			}
-		} else if (fstab_style) {
-			for (i = 0; i < mntsize; i++) {
-				if (checkvfsname(mntbuf[i].f_fstypename, vfslist))
-					continue;
-				putfsent(&mntbuf[i]);
-			}
-		} else {
-			for (i = 0; i < mntsize; i++) {
-				if (checkvfsname(mntbuf[i].f_fstypename,
-				    vfslist))
-					continue;
-				prmount(&mntbuf[i]);
-			}
-		}
-		exit(rval);
-	case 1:
-		if (vfslist != NULL)
-			usage();
-
-		if (init_flags & MNT_UPDATE) {
-			mntfromname = NULL;
-			have_fstab = 0;
-			if ((mntbuf = getmntpt(*argv)) == NULL)
-				errx(1, "not currently mounted %s", *argv);
-			/*
-			 * Only get the mntflags from fstab if both mntpoint
-			 * and mntspec are identical. Also handle the special
-			 * case where just '/' is mounted and 'spec' is not
-			 * identical with the one from fstab ('/dev' is missing
-			 * in the spec-string at boot-time).
-			 */
-			if ((fs = getfsfile(mntbuf->f_mntonname)) != NULL) {
-				if (strcmp(fs->fs_spec,
-				    mntbuf->f_mntfromname) == 0 &&
-				    strcmp(fs->fs_file,
-				    mntbuf->f_mntonname) == 0) {
-					have_fstab = 1;
-					mntfromname = mntbuf->f_mntfromname;
-				} else if (argv[0][0] == '/' &&
-				    argv[0][1] == '\0') {
-					fs = getfsfile("/");
-					have_fstab = 1;
-					mntfromname = fs->fs_spec;
-				}
-			}
-			if (have_fstab) {
-				options = update_options(options, fs->fs_mntops,
-				    mntbuf->f_flags);
-			} else {
-				mntfromname = mntbuf->f_mntfromname;
-				options = update_options(options, NULL,
-				    mntbuf->f_flags);
-			}
-			rval = mountfs(mntbuf->f_fstypename, mntfromname,
-			    mntbuf->f_mntonname, init_flags, options, 0);
-			break;
-		}
-		rmslashes(*argv, *argv);
-		if ((fs = getfsfile(*argv)) == NULL &&
-		    (fs = getfsspec(*argv)) == NULL)
-			errx(1, "%s: unknown special file or file system",
-			    *argv);
-		if (BADTYPE(fs->fs_type))
-			errx(1, "%s has unknown file system type",
-			    *argv);
-		rval = mountfs(fs->fs_vfstype, fs->fs_spec, fs->fs_file,
-		    init_flags, options, fs->fs_mntops);
-		break;
-	case 2:
-		/*
-		 * If -t flag has not been specified, the path cannot be
-		 * found, spec contains either a ':' or a '@', and the
-		 * spec is not a file with those characters, then assume
-		 * that an NFS filesystem is being specified ala Sun.
-		 */
-		if (vfslist == NULL && strpbrk(argv[0], ":@") != NULL &&
-		    access(argv[0], 0) == -1)
-			vfstype = "nfs";
-		rval = mountfs(vfstype,
-		    argv[0], argv[1], init_flags, options, NULL);
-		break;
-	default:
-		usage();
-		/* NOTREACHED */
-	}
-
-	/*
-	 * If the mount was successfully, and done by root, tell mountd the
-	 * good news.  Pid checks are probably unnecessary, but don't hurt.
-	 */
-	if (rval == 0 && getuid() == 0 &&
-	    (mountdfp = fopen(_PATH_MOUNTDPID, "r")) != NULL) {
-		if (fscanf(mountdfp, "%d", &pid) == 1 &&
-		     pid > 0 && kill(pid, SIGHUP) == -1 && errno != ESRCH)
-			err(1, "signal mountd");
-		(void)fclose(mountdfp);
-	}
-
-	exit(rval);
+        mount_ifs(argc, argv);
+        /* NOTREACHED */
 }
 
 int
@@ -440,8 +269,8 @@ mountfs(vfstype, spec, name, flags, options, mntopts)
 		free(optbuf);
 		return (1);
 	case 0:					/* Child. */
-		if (strcmp(vfstype, "ufs") == 0)
-			exit(mount_ufs(argc, (char * const *) argv));
+		if (strcmp(vfstype, "ifs") == 0)
+			exit(mount_ifs(argc, (char * const *) argv));
 
 		/* Go find an executable. */
 		for (edir = edirs; *edir; edir++) {
@@ -688,10 +517,8 @@ void
 usage()
 {
 
-	(void)fprintf(stderr, "%s\n%s\n%s\n",
-"usage: mount [-dfpruvw] [-o options] [-t ufs | external_type] special node",
-"       mount [-adfpruvw] [-t ufs | external_type]",
-"       mount [-dfpruvw] special | node");
+	(void)fprintf(stderr, "%s\n",
+"usage: mount [-dfpruvw] [-o options] special node");
 	exit(1);
 }
 

sbin/mount_ifs/mount_ufs.c

@@ -58,7 +58,7 @@ static const char rcsid[] =
 #include "extern.h"
 #include "mntopts.h"
 
-static void ufs_usage __P((void));
+static void ifs_usage __P((void));
 
 static struct mntopt mopts[] = {
 	MOPT_STDOPTS,
@@ -71,7 +71,7 @@ static struct mntopt mopts[] = {
 };
 
 int
-mount_ufs(argc, argv)
+mount_ifs(argc, argv)
 	int argc;
 	char * const argv[];
 {
@@ -90,13 +90,13 @@ mount_ufs(argc, argv)
 			break;
 		case '?':
 		default:
-			ufs_usage();
+			ifs_usage();
 		}
 	argc -= optind;
 	argv += optind;
 
 	if (argc != 2)
-		ufs_usage();
+		ifs_usage();
 
         args.fspec = argv[0];		/* The name of the device file. */
 	fs_name = argv[1];		/* The mount point. */
@@ -108,17 +108,17 @@ mount_ufs(argc, argv)
 	else
 		args.export.ex_flags = 0;
 
-	error = getvfsbyname("ufs", &vfc);
-	if (error && vfsisloadable("ufs")) {
-		if (vfsload("ufs")) {
-			warn("vfsload(ufs)");
+	error = getvfsbyname("ifs", &vfc);
+	if (error && vfsisloadable("ifs")) {
+		if (vfsload("ifs")) {
+			warn("vfsload(ifs)");
 			return (1);
 		}
 		endvfsent(); /* flush old table */
-		error = getvfsbyname("ufs", &vfc);
+		error = getvfsbyname("ifs", &vfc);
 	}
 	if (error) {
-		warnx("ufs filesystem is not available");
+		warnx("ifs filesystem is not available");
 		return (1);
 	}
 
@@ -147,8 +147,8 @@ mount_ufs(argc, argv)
 }
 
 static void
-ufs_usage()
+ifs_usage()
 {
-	(void)fprintf(stderr, "usage: mount_ufs [-o options] special node\n");
+	(void)fprintf(stderr, "usage: mount_ifs [-o options] special node\n");
 	exit(1);
 }

sbin/mount_ifs/vfslist.c

@@ -1,96 +0,0 @@
-/*-
- * Copyright (c) 1995
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)vfslist.c	8.1 (Berkeley) 5/8/95";
-#endif
-static const char rcsid[] =
-  "$FreeBSD$";
-#endif /* not lint */
-
-#include <err.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "extern.h"
-
-static int	  skipvfs;
-
-int
-checkvfsname(vfsname, vfslist)
-	const char *vfsname;
-	const char **vfslist;
-{
-
-	if (vfslist == NULL)
-		return (0);
-	while (*vfslist != NULL) {
-		if (strcmp(vfsname, *vfslist) == 0)
-			return (skipvfs);
-		++vfslist;
-	}
-	return (!skipvfs);
-}
-
-const char **
-makevfslist(fslist)
-	char *fslist;
-{
-	const char **av;
-	int i;
-	char *nextcp;
-
-	if (fslist == NULL)
-		return (NULL);
-	if (fslist[0] == 'n' && fslist[1] == 'o') {
-		fslist += 2;
-		skipvfs = 1;
-	}
-	for (i = 0, nextcp = fslist; *nextcp; nextcp++)
-		if (*nextcp == ',')
-			i++;
-	if ((av = malloc((size_t)(i + 2) * sizeof(char *))) == NULL) {
-		warnx("malloc failed");
-		return (NULL);
-	}
-	nextcp = fslist;
-	i = 0;
-	av[i++] = nextcp;
-	while ((nextcp = strchr(nextcp, ',')) != NULL) {
-		*nextcp++ = '\0';
-		av[i++] = nextcp;
-	}
-	av[i++] = NULL;
-	return (av);
-}