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-rw-r--r--sbin/fsck/preen.c341
1 files changed, 341 insertions, 0 deletions
diff --git a/sbin/fsck/preen.c b/sbin/fsck/preen.c
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index 00000000000..abcb2eb4b5f
--- /dev/null
+++ b/sbin/fsck/preen.c
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+/* $OpenBSD: preen.c,v 1.3 1996/10/20 08:36:27 tholo Exp $ */
+/* $NetBSD: preen.c,v 1.15 1996/09/28 19:21:42 christos Exp $ */
+
+/*
+ * Copyright (c) 1990, 1993
+ * 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[] = "@(#)preen.c 8.3 (Berkeley) 12/6/94";
+#else
+static char rcsid[] = "$NetBSD: preen.c,v 1.15 1996/09/28 19:21:42 christos Exp $";
+#endif
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/queue.h>
+
+#include <fstab.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <err.h>
+
+#include "fsutil.h"
+
+struct partentry {
+ TAILQ_ENTRY(partentry) p_entries;
+ char *p_devname; /* device name */
+ char *p_mntpt; /* mount point */
+ char *p_type; /* filesystem type */
+ void *p_auxarg; /* auxiliary argument */
+};
+
+TAILQ_HEAD(part, partentry) badh;
+
+struct diskentry {
+ TAILQ_ENTRY(diskentry) d_entries;
+ char *d_name; /* disk base name */
+ TAILQ_HEAD(prt, partentry) d_part; /* list of partitions on disk */
+ int d_pid; /* 0 or pid of fsck proc */
+};
+
+TAILQ_HEAD(disk, diskentry) diskh;
+
+static int nrun = 0, ndisks = 0;
+
+static struct diskentry *finddisk __P((const char *));
+static void addpart __P((const char *, const char *, const char *, void *));
+static int startdisk __P((struct diskentry *,
+ int (*)(const char *, const char *, const char *, void *, pid_t *)));
+static void printpart __P((void));
+
+int
+checkfstab(flags, maxrun, docheck, checkit)
+ int flags, maxrun;
+ void *(*docheck) __P((struct fstab *));
+ int (*checkit) __P((const char *, const char *, const char *, void *,
+ pid_t *));
+{
+ struct fstab *fs;
+ struct diskentry *d, *nextdisk;
+ struct partentry *p;
+ int ret, pid, retcode, passno, sumstatus, status;
+ void *auxarg;
+ char *name;
+
+ TAILQ_INIT(&badh);
+ TAILQ_INIT(&diskh);
+
+ sumstatus = 0;
+
+ for (passno = 1; passno <= 2; passno++) {
+ if (setfsent() == 0) {
+ warnx("Can't open checklist file: %s\n", _PATH_FSTAB);
+ return (8);
+ }
+ while ((fs = getfsent()) != 0) {
+ if ((auxarg = (*docheck)(fs)) == NULL)
+ continue;
+
+ name = blockcheck(fs->fs_spec);
+ if (flags & CHECK_DEBUG)
+ printf("pass %d, name %s\n", passno, name);
+
+ if ((flags & CHECK_PREEN) == 0 ||
+ (passno == 1 && fs->fs_passno == 1)) {
+ if (name == NULL) {
+ if (flags & CHECK_PREEN)
+ return 8;
+ else
+ continue;
+ }
+ sumstatus = (*checkit)(fs->fs_vfstype,
+ name, fs->fs_file, auxarg, NULL);
+
+ if (sumstatus)
+ return (sumstatus);
+ } else if (passno == 2 && fs->fs_passno > 1) {
+ if (name == NULL) {
+ (void) fprintf(stderr,
+ "BAD DISK NAME %s\n", fs->fs_spec);
+ sumstatus |= 8;
+ continue;
+ }
+ addpart(fs->fs_vfstype, name, fs->fs_file,
+ auxarg);
+ }
+ }
+ if ((flags & CHECK_PREEN) == 0)
+ return 0;
+ }
+
+ if (flags & CHECK_DEBUG)
+ printpart();
+
+ if (flags & CHECK_PREEN) {
+ if (maxrun == 0)
+ maxrun = ndisks;
+ if (maxrun > ndisks)
+ maxrun = ndisks;
+ nextdisk = diskh.tqh_first;
+ for (passno = 0; passno < maxrun; ++passno) {
+ if ((ret = startdisk(nextdisk, checkit)) != 0)
+ return ret;
+ nextdisk = nextdisk->d_entries.tqe_next;
+ }
+
+ while ((pid = wait(&status)) != -1) {
+ for (d = diskh.tqh_first; d; d = d->d_entries.tqe_next)
+ if (d->d_pid == pid)
+ break;
+
+ if (d == NULL) {
+ warnx("Unknown pid %d\n", pid);
+ continue;
+ }
+
+
+ if (WIFEXITED(status))
+ retcode = WEXITSTATUS(status);
+ else
+ retcode = 0;
+
+ p = d->d_part.tqh_first;
+
+ if (flags & (CHECK_DEBUG|CHECK_VERBOSE))
+ (void) printf("done %s: %s (%s) = %x\n",
+ p->p_type, p->p_devname, p->p_mntpt,
+ status);
+
+ if (WIFSIGNALED(status)) {
+ (void) fprintf(stderr,
+ "%s: %s (%s): EXITED WITH SIGNAL %d\n",
+ p->p_type, p->p_devname, p->p_mntpt,
+ WTERMSIG(status));
+ retcode = 8;
+ }
+
+ TAILQ_REMOVE(&d->d_part, p, p_entries);
+
+ if (retcode != 0) {
+ TAILQ_INSERT_TAIL(&badh, p, p_entries);
+ sumstatus |= retcode;
+ } else {
+ free(p->p_type);
+ free(p->p_devname);
+ free(p);
+ }
+ d->d_pid = 0;
+ nrun--;
+
+ if (d->d_part.tqh_first == NULL)
+ ndisks--;
+
+ if (nextdisk == NULL) {
+ if (d->d_part.tqh_first) {
+ if ((ret = startdisk(d, checkit)) != 0)
+ return ret;
+ }
+ } else if (nrun < maxrun && nrun < ndisks) {
+ for ( ;; ) {
+ nextdisk = nextdisk->d_entries.tqe_next;
+ if (nextdisk == NULL)
+ nextdisk = diskh.tqh_first;
+ if (nextdisk->d_part.tqh_first != NULL
+ && nextdisk->d_pid == 0)
+ break;
+ }
+ if ((ret = startdisk(nextdisk, checkit)) != 0)
+ return ret;
+ }
+ }
+ }
+ if (sumstatus) {
+ p = badh.tqh_first;
+ if (p == NULL)
+ return (sumstatus);
+
+ (void) fprintf(stderr,
+ "THE FOLLOWING FILE SYSTEM%s HAD AN %s\n\t",
+ p->p_entries.tqe_next ? "S" : "",
+ "UNEXPECTED INCONSISTENCY:");
+
+ for (; p; p = p->p_entries.tqe_next)
+ (void) fprintf(stderr,
+ "%s: %s (%s)%s", p->p_type, p->p_devname,
+ p->p_mntpt, p->p_entries.tqe_next ? ", " : "\n");
+
+ return sumstatus;
+ }
+ (void) endfsent();
+ return (0);
+}
+
+
+static struct diskentry *
+finddisk(name)
+ const char *name;
+{
+ const char *p;
+ size_t len;
+ struct diskentry *d;
+
+ for (p = name + strlen(name) - 1; p >= name; --p)
+ if (isdigit(*p)) {
+ len = p - name + 1;
+ break;
+ }
+
+ if (p < name)
+ len = strlen(name);
+
+ for (d = diskh.tqh_first; d != NULL; d = d->d_entries.tqe_next)
+ if (strncmp(d->d_name, name, len) == 0 && d->d_name[len] == 0)
+ return d;
+
+ d = emalloc(sizeof(*d));
+ d->d_name = estrdup(name);
+ d->d_name[len] = '\0';
+ TAILQ_INIT(&d->d_part);
+ d->d_pid = 0;
+
+ TAILQ_INSERT_TAIL(&diskh, d, d_entries);
+ ndisks++;
+
+ return d;
+}
+
+
+static void
+printpart()
+{
+ struct diskentry *d;
+ struct partentry *p;
+
+ for (d = diskh.tqh_first; d != NULL; d = d->d_entries.tqe_next) {
+ (void) printf("disk %s: ", d->d_name);
+ for (p = d->d_part.tqh_first; p != NULL;
+ p = p->p_entries.tqe_next)
+ (void) printf("%s ", p->p_devname);
+ (void) printf("\n");
+ }
+}
+
+
+static void
+addpart(type, devname, mntpt, auxarg)
+ const char *type, *devname, *mntpt;
+ void *auxarg;
+{
+ struct diskentry *d = finddisk(devname);
+ struct partentry *p;
+
+ for (p = d->d_part.tqh_first; p != NULL; p = p->p_entries.tqe_next)
+ if (strcmp(p->p_devname, devname) == 0) {
+ warnx("%s in fstab more than once!\n", devname);
+ return;
+ }
+
+ p = emalloc(sizeof(*p));
+ p->p_devname = estrdup(devname);
+ p->p_mntpt = estrdup(mntpt);
+ p->p_type = estrdup(type);
+ p->p_auxarg = auxarg;
+
+ TAILQ_INSERT_TAIL(&d->d_part, p, p_entries);
+}
+
+
+static int
+startdisk(d, checkit)
+ register struct diskentry *d;
+ int (*checkit) __P((const char *, const char *, const char *, void *,
+ pid_t *));
+{
+ register struct partentry *p = d->d_part.tqh_first;
+ int rv;
+
+ while ((rv = (*checkit)(p->p_type, p->p_devname, p->p_mntpt,
+ p->p_auxarg, &d->d_pid)) != 0 && nrun > 0)
+ sleep(10);
+
+ if (rv == 0)
+ nrun++;
+
+ return rv;
+}
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