mirror of
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9ea6f4f0be
Approved by: rwatson Obtained from: NetBSD-current source tree The beginnings of the fsck wrappers stuff from NetBSD. This particular commit brings a newly repo-copied sbin/fsck_ffs/ (from sbin/fsck/) into fsck wrappers mode. A quick overview (the code reflects this): * Documentation changed to reflect fsck_ffs instead of fsck * Simply acts on a single filesystem, doesn't try to do any multiple filesystem magic - this is done by the fsck wrappers now And then specific to fsck_ffs: * link to /sbin/fsck_4.2bsd and /sbin/fsck_ufs. This is because right now the filesystem is of type ufs not ffs, and that during autodetection the labeltype rather than the VFS type is used - this is because when doing an autodetection of filesystem type in the fsck wrapper program, it does not have any link between label type (4.2bsd, vinum, etc) and VFS string. Note that this shouldn't break a build since the required buildworld Makefile magic and import of the fsck wrapper code into src/sbin/fsck/ will happen in a seperate commit.
291 lines
7.6 KiB
C
291 lines
7.6 KiB
C
/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS 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
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* OR 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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#ifndef lint
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#if 0
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static const char sccsid[] = "@(#)preen.c 8.5 (Berkeley) 4/28/95";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <ufs/ufs/dinode.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fstab.h>
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#include <string.h>
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#include "fsck.h"
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struct part {
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struct part *next; /* forward link of partitions on disk */
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char *name; /* device name */
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char *fsname; /* mounted filesystem name */
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long auxdata; /* auxillary data for application */
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} *badlist, **badnext = &badlist;
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struct disk {
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char *name; /* disk base name */
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struct disk *next; /* forward link for list of disks */
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struct part *part; /* head of list of partitions on disk */
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int pid; /* If != 0, pid of proc working on */
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} *disks;
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int nrun, ndisks;
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static void addpart __P((char *name, char *fsname, long auxdata));
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static struct disk *finddisk __P((char *name));
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static int startdisk __P((struct disk *dk,
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int (*checkit)(char *, char *, long, int)));
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int
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checkfstab(preen, maxrun, docheck, chkit)
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int preen;
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int maxrun;
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int (*docheck)(struct fstab *);
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int (*chkit)(char *, char *, long, int);
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{
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register struct fstab *fsp;
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register struct disk *dk, *nextdisk;
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register struct part *pt;
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int ret, pid, retcode, passno, sumstatus, status;
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long auxdata;
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char *name;
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sumstatus = 0;
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for (passno = 1; passno <= 2; passno++) {
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if (setfsent() == 0) {
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fprintf(stderr, "Can't open checklist file: %s\n",
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_PATH_FSTAB);
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return (8);
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}
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while ((fsp = getfsent()) != 0) {
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if ((auxdata = (*docheck)(fsp)) == 0)
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continue;
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if (preen == 0 ||
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(passno == 1 && fsp->fs_passno == 1)) {
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if ((name = blockcheck(fsp->fs_spec)) != 0) {
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if ((sumstatus = (*chkit)(name,
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fsp->fs_file, auxdata, 0)) != 0)
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return (sumstatus);
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} else if (preen)
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return (8);
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} else if (passno == 2 && fsp->fs_passno > 1) {
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if ((name = blockcheck(fsp->fs_spec)) == NULL) {
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fprintf(stderr, "BAD DISK NAME %s\n",
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fsp->fs_spec);
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sumstatus |= 8;
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continue;
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}
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addpart(name, fsp->fs_file, auxdata);
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}
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}
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if (preen == 0)
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return (0);
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}
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if (preen) {
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if (maxrun == 0)
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maxrun = ndisks;
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if (maxrun > ndisks)
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maxrun = ndisks;
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nextdisk = disks;
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for (passno = 0; passno < maxrun; ++passno) {
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while ((ret = startdisk(nextdisk, chkit)) && nrun > 0)
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sleep(10);
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if (ret)
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return (ret);
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nextdisk = nextdisk->next;
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}
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while ((pid = wait(&status)) != -1) {
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for (dk = disks; dk; dk = dk->next)
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if (dk->pid == pid)
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break;
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if (dk == 0) {
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printf("Unknown pid %d\n", pid);
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continue;
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}
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if (WIFEXITED(status))
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retcode = WEXITSTATUS(status);
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else
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retcode = 0;
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if (WIFSIGNALED(status)) {
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printf("%s (%s): EXITED WITH SIGNAL %d\n",
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dk->part->name, dk->part->fsname,
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WTERMSIG(status));
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retcode = 8;
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}
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if (retcode != 0) {
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sumstatus |= retcode;
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*badnext = dk->part;
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badnext = &dk->part->next;
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dk->part = dk->part->next;
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*badnext = NULL;
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} else
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dk->part = dk->part->next;
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dk->pid = 0;
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nrun--;
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if (dk->part == NULL)
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ndisks--;
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if (nextdisk == NULL) {
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if (dk->part) {
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while ((ret = startdisk(dk, chkit)) &&
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nrun > 0)
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sleep(10);
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if (ret)
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return (ret);
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}
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} else if (nrun < maxrun && nrun < ndisks) {
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for ( ;; ) {
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if ((nextdisk = nextdisk->next) == NULL)
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nextdisk = disks;
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if (nextdisk->part != NULL &&
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nextdisk->pid == 0)
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break;
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}
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while ((ret = startdisk(nextdisk, chkit)) &&
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nrun > 0)
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sleep(10);
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if (ret)
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return (ret);
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}
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}
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}
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if (sumstatus) {
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if (badlist == 0)
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return (sumstatus);
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fprintf(stderr, "THE FOLLOWING FILE SYSTEM%s HAD AN %s\n\t",
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badlist->next ? "S" : "", "UNEXPECTED INCONSISTENCY:");
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for (pt = badlist; pt; pt = pt->next)
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fprintf(stderr, "%s (%s)%s", pt->name, pt->fsname,
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pt->next ? ", " : "\n");
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return (sumstatus);
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}
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(void)endfsent();
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return (0);
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}
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static struct disk *
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finddisk(name)
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char *name;
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{
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register struct disk *dk, **dkp;
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register char *p;
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size_t len;
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p = strrchr(name, '/');
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p = p == NULL ? name : p + 1;
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while (*p != '\0' && !isdigit((u_char)*p))
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p++;
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while (isdigit((u_char)*p))
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p++;
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len = (size_t)(p - name);
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for (dk = disks, dkp = &disks; dk; dkp = &dk->next, dk = dk->next) {
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if (strncmp(dk->name, name, len) == 0 &&
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dk->name[len] == 0)
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return (dk);
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}
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if ((*dkp = (struct disk *)malloc(sizeof(struct disk))) == NULL) {
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fprintf(stderr, "out of memory");
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exit (8);
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}
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dk = *dkp;
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if ((dk->name = malloc(len + 1)) == NULL) {
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fprintf(stderr, "out of memory");
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exit (8);
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}
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(void)strncpy(dk->name, name, len);
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dk->name[len] = '\0';
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dk->part = NULL;
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dk->next = NULL;
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dk->pid = 0;
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ndisks++;
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return (dk);
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}
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static void
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addpart(name, fsname, auxdata)
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char *name, *fsname;
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long auxdata;
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{
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struct disk *dk = finddisk(name);
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register struct part *pt, **ppt = &dk->part;
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for (pt = dk->part; pt; ppt = &pt->next, pt = pt->next)
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if (strcmp(pt->name, name) == 0) {
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printf("%s in fstab more than once!\n", name);
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return;
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}
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if ((*ppt = (struct part *)malloc(sizeof(struct part))) == NULL) {
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fprintf(stderr, "out of memory");
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exit (8);
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}
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pt = *ppt;
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if ((pt->name = malloc(strlen(name) + 1)) == NULL) {
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fprintf(stderr, "out of memory");
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exit (8);
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}
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(void)strcpy(pt->name, name);
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if ((pt->fsname = malloc(strlen(fsname) + 1)) == NULL) {
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fprintf(stderr, "out of memory");
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exit (8);
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}
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(void)strcpy(pt->fsname, fsname);
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pt->next = NULL;
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pt->auxdata = auxdata;
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}
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static int
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startdisk(dk, checkit)
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register struct disk *dk;
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int (*checkit)(char *, char *, long, int);
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{
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register struct part *pt = dk->part;
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dk->pid = fork();
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if (dk->pid < 0) {
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perror("fork");
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return (8);
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}
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if (dk->pid == 0)
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exit((*checkit)(pt->name, pt->fsname, pt->auxdata, 1));
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nrun++;
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return (0);
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}
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