341 lines
8.5 KiB
C
341 lines
8.5 KiB
C
/* $NetBSD: preen.c,v 1.17 1997/09/16 14:52:35 lukem Exp $ */
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/*
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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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)preen.c 8.5 (Berkeley) 4/28/95";
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#else
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__RCSID("$NetBSD: preen.c,v 1.17 1997/09/16 14:52:35 lukem Exp $");
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#endif
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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 <sys/queue.h>
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#include <err.h>
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#include <ctype.h>
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#include <fstab.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "fsutil.h"
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struct partentry {
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TAILQ_ENTRY(partentry) p_entries;
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char *p_devname; /* device name */
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char *p_mntpt; /* mount point */
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char *p_type; /* filesystem type */
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void *p_auxarg; /* auxiliary argument */
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};
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TAILQ_HEAD(part, partentry) badh;
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struct diskentry {
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TAILQ_ENTRY(diskentry) d_entries;
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char *d_name; /* disk base name */
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TAILQ_HEAD(prt, partentry) d_part; /* list of partitions on disk */
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int d_pid; /* 0 or pid of fsck proc */
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};
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TAILQ_HEAD(disk, diskentry) diskh;
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static int nrun = 0, ndisks = 0;
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static struct diskentry *finddisk __P((const char *));
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static void addpart __P((const char *, const char *, const char *, void *));
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static int startdisk __P((struct diskentry *,
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int (*)(const char *, const char *, const char *, void *, pid_t *)));
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static void printpart __P((void));
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int
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checkfstab(flags, maxrun, docheck, checkit)
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int flags, maxrun;
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void *(*docheck) __P((struct fstab *));
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int (*checkit) __P((const char *, const char *, const char *, void *,
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pid_t *));
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{
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struct fstab *fs;
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struct diskentry *d, *nextdisk;
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struct partentry *p;
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int ret, pid, retcode, passno, sumstatus, status;
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void *auxarg;
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char *name;
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TAILQ_INIT(&badh);
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TAILQ_INIT(&diskh);
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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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warnx("Can't open checklist file: %s\n", _PATH_FSTAB);
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return (8);
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}
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while ((fs = getfsent()) != 0) {
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if ((auxarg = (*docheck)(fs)) == NULL)
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continue;
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name = blockcheck(fs->fs_spec);
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if (flags & CHECK_DEBUG)
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printf("pass %d, name %s\n", passno, name);
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if ((flags & CHECK_PREEN) == 0 ||
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(passno == 1 && fs->fs_passno == 1)) {
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if (name == NULL) {
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if (flags & CHECK_PREEN)
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return 8;
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else
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continue;
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}
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sumstatus = (*checkit)(fs->fs_vfstype,
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name, fs->fs_file, auxarg, NULL);
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if (sumstatus)
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return (sumstatus);
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} else if (passno == 2 && fs->fs_passno > 1) {
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if (name == NULL) {
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(void) fprintf(stderr,
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"BAD DISK NAME %s\n", fs->fs_spec);
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sumstatus |= 8;
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continue;
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}
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addpart(fs->fs_vfstype, name, fs->fs_file,
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auxarg);
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}
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}
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if ((flags & CHECK_PREEN) == 0)
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return 0;
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}
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if (flags & CHECK_DEBUG)
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printpart();
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if (flags & CHECK_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 = diskh.tqh_first;
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for (passno = 0; passno < maxrun; ++passno) {
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if ((ret = startdisk(nextdisk, checkit)) != 0)
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return ret;
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nextdisk = nextdisk->d_entries.tqe_next;
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}
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while ((pid = wait(&status)) != -1) {
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for (d = diskh.tqh_first; d; d = d->d_entries.tqe_next)
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if (d->d_pid == pid)
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break;
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if (d == NULL) {
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warnx("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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p = d->d_part.tqh_first;
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if (flags & (CHECK_DEBUG|CHECK_VERBOSE))
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(void) printf("done %s: %s (%s) = 0x%x\n",
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p->p_type, p->p_devname, p->p_mntpt,
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status);
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if (WIFSIGNALED(status)) {
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(void) fprintf(stderr,
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"%s: %s (%s): EXITED WITH SIGNAL %d\n",
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p->p_type, p->p_devname, p->p_mntpt,
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WTERMSIG(status));
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retcode = 8;
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}
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TAILQ_REMOVE(&d->d_part, p, p_entries);
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if (retcode != 0) {
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TAILQ_INSERT_TAIL(&badh, p, p_entries);
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sumstatus |= retcode;
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} else {
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free(p->p_type);
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free(p->p_devname);
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free(p);
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}
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d->d_pid = 0;
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nrun--;
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if (d->d_part.tqh_first == NULL)
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ndisks--;
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if (nextdisk == NULL) {
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if (d->d_part.tqh_first) {
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if ((ret = startdisk(d, checkit)) != 0)
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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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nextdisk = nextdisk->d_entries.tqe_next;
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if (nextdisk == NULL)
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nextdisk = diskh.tqh_first;
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if (nextdisk->d_part.tqh_first != NULL
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&& nextdisk->d_pid == 0)
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break;
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}
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if ((ret = startdisk(nextdisk, checkit)) != 0)
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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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p = badh.tqh_first;
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if (p == NULL)
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return (sumstatus);
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(void) fprintf(stderr,
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"THE FOLLOWING FILE SYSTEM%s HAD AN %s\n\t",
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p->p_entries.tqe_next ? "S" : "",
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"UNEXPECTED INCONSISTENCY:");
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for (; p; p = p->p_entries.tqe_next)
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(void) fprintf(stderr,
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"%s: %s (%s)%s", p->p_type, p->p_devname,
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p->p_mntpt, p->p_entries.tqe_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 diskentry *
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finddisk(name)
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const char *name;
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{
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const char *p;
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size_t len = 0;
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struct diskentry *d;
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for (len = strlen(name), p = name + len - 1; p >= name; --p)
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if (isdigit(*p)) {
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len = p - name + 1;
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break;
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}
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if (p < name)
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len = strlen(name);
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for (d = diskh.tqh_first; d != NULL; d = d->d_entries.tqe_next)
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if (strncmp(d->d_name, name, len) == 0 && d->d_name[len] == 0)
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return d;
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d = emalloc(sizeof(*d));
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d->d_name = estrdup(name);
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d->d_name[len] = '\0';
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TAILQ_INIT(&d->d_part);
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d->d_pid = 0;
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TAILQ_INSERT_TAIL(&diskh, d, d_entries);
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ndisks++;
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return d;
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}
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static void
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printpart()
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{
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struct diskentry *d;
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struct partentry *p;
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for (d = diskh.tqh_first; d != NULL; d = d->d_entries.tqe_next) {
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(void) printf("disk %s: ", d->d_name);
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for (p = d->d_part.tqh_first; p != NULL;
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p = p->p_entries.tqe_next)
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(void) printf("%s ", p->p_devname);
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(void) printf("\n");
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}
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}
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static void
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addpart(type, devname, mntpt, auxarg)
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const char *type, *devname, *mntpt;
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void *auxarg;
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{
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struct diskentry *d = finddisk(devname);
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struct partentry *p;
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for (p = d->d_part.tqh_first; p != NULL; p = p->p_entries.tqe_next)
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if (strcmp(p->p_devname, devname) == 0) {
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warnx("%s in fstab more than once!\n", devname);
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return;
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}
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p = emalloc(sizeof(*p));
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p->p_devname = estrdup(devname);
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p->p_mntpt = estrdup(mntpt);
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p->p_type = estrdup(type);
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p->p_auxarg = auxarg;
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TAILQ_INSERT_TAIL(&d->d_part, p, p_entries);
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}
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static int
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startdisk(d, checkit)
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struct diskentry *d;
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int (*checkit) __P((const char *, const char *, const char *, void *,
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pid_t *));
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{
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struct partentry *p = d->d_part.tqh_first;
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int rv;
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while ((rv = (*checkit)(p->p_type, p->p_devname, p->p_mntpt,
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p->p_auxarg, &d->d_pid)) != 0 && nrun > 0)
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sleep(10);
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if (rv == 0)
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nrun++;
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return rv;
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}
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