openafs/src/vfsck/pass2.c
Simon Wilkinson b9eaf43bbe Don't cast the pointer past to memset
memset() takes a void * as it's first argument. Don't explicitly cast
what we're passing in to (char *), as this may mask other errors.

Reviewed-on: http://gerrit.openafs.org/701
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
2009-10-21 11:34:12 -07:00

423 lines
10 KiB
C

/*
* Copyright (c) 1980, 1986 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <afsconfig.h>
#include <afs/param.h>
#define VICE
#include <sys/time.h>
#include <sys/param.h>
#ifdef AFS_OSF_ENV
#include <sys/vnode.h>
#include <sys/mount.h>
#include <ufs/inode.h>
#include <ufs/fs.h>
#define _BSD
#define _KERNEL
#include <ufs/dir.h>
#undef _KERNEL
#undef _BSD
#include <stdio.h>
#else /* AFS_OSF_ENV */
#ifdef AFS_VFSINCL_ENV
#include <sys/vnode.h>
#ifdef AFS_SUN5_ENV
#include <stdio.h>
#include <unistd.h>
#include <sys/fs/ufs_inode.h>
#include <sys/fs/ufs_fs.h>
#define _KERNEL
#include <sys/fs/ufs_fsdir.h>
#undef _KERNEL
#include <sys/fs/ufs_mount.h>
#else
#include <ufs/inode.h>
#include <ufs/fs.h>
#include <ufs/fsdir.h>
#endif
#else /* AFS_VFSINCL_ENV */
#include <sys/inode.h>
#ifdef AFS_HPUX_ENV
#include <ctype.h>
#define LONGFILENAMES 1
#include <sys/sysmacros.h>
#include <sys/ino.h>
#define DIRSIZ_MACRO
#ifdef HAVE_USR_OLD_USR_INCLUDE_NDIR_H
#include </usr/old/usr/include/ndir.h>
#else
#include <ndir.h>
#endif
#else
#include <sys/dir.h>
#endif
#include <sys/fs.h>
#endif /* AFS_VFSINCL_ENV */
#endif /* AFS_OSF_ENV */
#include <afs/osi_inode.h>
#ifdef AFS_SUN5_ENV
#include <string.h>
#else
#include <strings.h>
#endif
#include "fsck.h"
int pass2check();
pass2()
{
register struct dinode *dp;
struct inodesc rootdesc;
memset(&rootdesc, 0, sizeof(struct inodesc));
rootdesc.id_type = ADDR;
rootdesc.id_func = pass2check;
rootdesc.id_number = ROOTINO;
pathp = pathname;
#if defined(ACLS) && defined(AFS_HPUX_ENV)
switch (statemap[ROOTINO] & STATE) {
#else /* no ACLS */
switch (statemap[ROOTINO]) {
#endif /* ACLS */
case USTATE:
pfatal("ROOT INODE UNALLOCATED");
if (reply("ALLOCATE") == 0)
errexit("");
if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
errexit("CANNOT ALLOCATE ROOT INODE\n");
descend(&rootdesc, ROOTINO);
break;
case DCLEAR:
pfatal("DUPS/BAD IN ROOT INODE");
if (reply("REALLOCATE")) {
freeino(ROOTINO);
if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
errexit("CANNOT ALLOCATE ROOT INODE\n");
descend(&rootdesc, ROOTINO);
break;
}
if (reply("CONTINUE") == 0)
errexit("");
statemap[ROOTINO] = DSTATE;
descend(&rootdesc, ROOTINO);
break;
#ifdef VICE
case VSTATE:
#endif /* VICE */
case FSTATE:
case FCLEAR:
pfatal("ROOT INODE NOT DIRECTORY");
if (reply("REALLOCATE")) {
freeino(ROOTINO);
if (allocdir(ROOTINO, ROOTINO, 0755) != ROOTINO)
errexit("CANNOT ALLOCATE ROOT INODE\n");
descend(&rootdesc, ROOTINO);
break;
}
if (reply("FIX") == 0)
errexit("");
dp = ginode(ROOTINO);
dp->di_mode &= ~IFMT;
dp->di_mode |= IFDIR;
#ifdef AFS_SUN5_ENV
dp->di_smode = dp->di_mode;
#endif
inodirty();
#if defined(ACLS) && defined(AFS_HPUX_ENV)
/*
* Keep any info on associated continuation inode
*/
if (statemap[ROOTINO] & HASCINODE)
statemap[ROOTINO] = DSTATE | HASCINODE;
else
statemap[ROOTINO] = DSTATE;
#else /* no ACLS */
statemap[ROOTINO] = DSTATE;
#endif /* ACLS */
/* fall into ... */
case DSTATE:
descend(&rootdesc, ROOTINO);
break;
default:
errexit("BAD STATE %d FOR ROOT INODE", statemap[ROOTINO]);
}
}
pass2check(idesc)
struct inodesc *idesc;
{
register struct direct *dirp = idesc->id_dirp;
char *curpathloc;
int n, entrysize, ret = 0;
struct dinode *dp;
struct direct proto;
char namebuf[BUFSIZ];
#if defined(ACLS) && defined(AFS_HPUX_ENV)
int holdstate;
#endif /* ACLS */
/*
* check for "."
*/
if (idesc->id_entryno != 0)
goto chk1;
if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") == 0) {
if (dirp->d_ino != idesc->id_number) {
direrror(idesc->id_number, "BAD INODE NUMBER FOR '.'");
dirp->d_ino = idesc->id_number;
if (reply("FIX") == 1)
ret |= ALTERED;
}
goto chk1;
}
direrror(idesc->id_number, "MISSING '.'");
proto.d_ino = idesc->id_number;
proto.d_namlen = 1;
(void)strcpy(proto.d_name, ".");
entrysize = DIRSIZ(&proto);
if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") != 0) {
pfatal("CANNOT FIX, FIRST ENTRY IN DIRECTORY CONTAINS %s\n",
dirp->d_name);
#if defined(AFS_SUN_ENV)
iscorrupt = 1;
#endif
} else if (dirp->d_reclen < entrysize) {
pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '.'\n");
#if defined(AFS_SUN_ENV)
iscorrupt = 1;
#endif
} else if (dirp->d_reclen < 2 * entrysize) {
proto.d_reclen = dirp->d_reclen;
memcpy((char *)dirp, (char *)&proto, entrysize);
if (reply("FIX") == 1)
ret |= ALTERED;
} else {
n = dirp->d_reclen - entrysize;
proto.d_reclen = entrysize;
memcpy((char *)dirp, (char *)&proto, entrysize);
idesc->id_entryno++;
lncntp[dirp->d_ino]--;
dirp = (struct direct *)((char *)(dirp) + entrysize);
memset(dirp, 0, n);
dirp->d_reclen = n;
if (reply("FIX") == 1)
ret |= ALTERED;
}
chk1:
if (idesc->id_entryno > 1)
goto chk2;
proto.d_ino = idesc->id_parent;
proto.d_namlen = 2;
(void)strcpy(proto.d_name, "..");
entrysize = DIRSIZ(&proto);
if (idesc->id_entryno == 0) {
n = DIRSIZ(dirp);
if (dirp->d_reclen < n + entrysize)
goto chk2;
proto.d_reclen = dirp->d_reclen - n;
dirp->d_reclen = n;
idesc->id_entryno++;
lncntp[dirp->d_ino]--;
dirp = (struct direct *)((char *)(dirp) + n);
memset(dirp, 0, n);
dirp->d_reclen = n;
}
if (dirp->d_ino != 0 && strcmp(dirp->d_name, "..") == 0) {
if (dirp->d_ino != idesc->id_parent) {
direrror(idesc->id_number, "BAD INODE NUMBER FOR '..'");
dirp->d_ino = idesc->id_parent;
if (reply("FIX") == 1)
ret |= ALTERED;
}
goto chk2;
}
direrror(idesc->id_number, "MISSING '..'");
if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") != 0) {
pfatal("CANNOT FIX, SECOND ENTRY IN DIRECTORY CONTAINS %s\n",
dirp->d_name);
#if defined(AFS_SUN_ENV)
iscorrupt = 1;
#endif
} else if (dirp->d_reclen < entrysize) {
pfatal("CANNOT FIX, INSUFFICIENT SPACE TO ADD '..'\n");
#if defined(AFS_SUN_ENV)
iscorrupt = 1;
#endif
} else {
proto.d_reclen = dirp->d_reclen;
memcpy((char *)dirp, (char *)&proto, entrysize);
if (reply("FIX") == 1)
ret |= ALTERED;
}
chk2:
if (dirp->d_ino == 0)
return (ret | KEEPON);
if (dirp->d_namlen <= 2 && dirp->d_name[0] == '.'
&& idesc->id_entryno >= 2) {
if (dirp->d_namlen == 1) {
direrror(idesc->id_number, "EXTRA '.' ENTRY");
dirp->d_ino = 0;
if (reply("FIX") == 1)
ret |= ALTERED;
return (KEEPON | ret);
}
if (dirp->d_name[1] == '.') {
direrror(idesc->id_number, "EXTRA '..' ENTRY");
dirp->d_ino = 0;
if (reply("FIX") == 1)
ret |= ALTERED;
return (KEEPON | ret);
}
}
curpathloc = pathp;
*pathp++ = '/';
if (pathp + dirp->d_namlen >= endpathname) {
*pathp = '\0';
errexit("NAME TOO LONG %s%s\n", pathname, dirp->d_name);
}
memcpy(pathp, dirp->d_name, (int)dirp->d_namlen + 1);
pathp += dirp->d_namlen;
idesc->id_entryno++;
n = 0;
if (dirp->d_ino > maxino || dirp->d_ino <= 0) {
direrror(dirp->d_ino, "I OUT OF RANGE");
n = reply("REMOVE");
} else {
again:
#if defined(ACLS) && defined(AFS_HPUX_ENV)
switch (statemap[dirp->d_ino] & STATE) {
#else /* no ACLS */
switch (statemap[dirp->d_ino]) {
#endif /* ACLS */
case USTATE:
direrror(dirp->d_ino, "UNALLOCATED");
n = reply("REMOVE");
break;
case DCLEAR:
case FCLEAR:
direrror(dirp->d_ino, "DUP/BAD");
if ((n = reply("REMOVE")) == 1)
break;
dp = ginode(dirp->d_ino);
#ifdef VICE
#if defined(ACLS) && defined(AFS_HPUX_ENV)
holdstate =
(dp->di_mode & IFMT) ==
IFDIR ? DSTATE : (VICEINODE ? VSTATE : FSTATE);
if (statemap[dirp->d_ino] & HASCINODE)
statemap[dirp->d_ino] = holdstate | HASCINODE;
else
statemap[dirp->d_ino] = holdstate;
#else
statemap[dirp->d_ino] =
(dp->di_mode & IFMT) ==
IFDIR ? DSTATE : (VICEINODE ? VSTATE : FSTATE);
#endif
#else /* VICE */
#if defined(ACLS) && defined(AFS_HPUX_ENV)
holdstate = (dp->di_mode & IFMT) == IFDIR ? DSTATE : FSTATE;
if (statemap[dirp->d_ino] & HASCINODE)
statemap[dirp->d_ino] = holdstate | HASCINODE;
else
statemap[dirp->d_ino] = holdstate;
#else
statemap[dirp->d_ino] =
(dp->di_mode & IFMT) == IFDIR ? DSTATE : FSTATE;
#endif
#endif /* VICE */
lncntp[dirp->d_ino] = dp->di_nlink;
goto again;
case DFOUND:
if (idesc->id_entryno > 2) {
getpathname(namebuf, dirp->d_ino, dirp->d_ino);
pwarn("%s %s %s\n", pathname,
"IS AN EXTRANEOUS HARD LINK TO DIRECTORY", namebuf);
if (preen)
printf(" (IGNORED)\n");
else if ((n = reply("REMOVE")) == 1)
break;
}
/* fall through */
case FSTATE:
#ifdef VICE
filecase:
#endif /* VICE */
lncntp[dirp->d_ino]--;
break;
#ifdef VICE
case VSTATE:
direrror(dirp->d_ino, "VICE INODE REFERENCED BY DIRECTORY");
if (reply("CONVERT TO REGULAR FILE") != 1)
break;
if ((dp = ginode(dirp->d_ino)) == NULL)
break;
#if defined(AFS_SUN_ENV) && !defined(AFS_SUN56_ENV)
dp->di_gen = dp->di_ic.ic_flags = dp->di_ic.ic_size.val[0] = 0;
#else
CLEAR_DVICEMAGIC(dp);
#endif
inodirty();
statemap[dirp->d_ino] = FSTATE;
ret |= ALTERED;
goto filecase;
#endif /* VICE */
case DSTATE:
descend(idesc, dirp->d_ino);
if (statemap[dirp->d_ino] == DFOUND) {
lncntp[dirp->d_ino]--;
} else if (statemap[dirp->d_ino] == DCLEAR) {
dirp->d_ino = 0;
ret |= ALTERED;
} else
errexit("BAD RETURN STATE %d FROM DESCEND",
statemap[dirp->d_ino]);
break;
#if defined(ACLS) && defined(AFS_HPUX_ENV)
/* hpux has more dynamic states (CSTATE, CRSTATE) */
case CSTATE:
break;
case CRSTATE:
break;
#endif
default:
errexit("BAD STATE %d FOR INODE I=%d", statemap[dirp->d_ino],
dirp->d_ino);
}
}
pathp = curpathloc;
*pathp = '\0';
if (n == 0)
return (ret | KEEPON);
dirp->d_ino = 0;
return (ret | KEEPON | ALTERED);
}