/*
* Determine if given inode should be dumped
*/
void
mapfileino(ino_t ino, int64_t *tapesize, int *dirskipped)
{
int mode;
union dinode *dp;
dp = getino(ino, &mode);
if (mode == 0)
return;
/*
* Skip WAPBL log file inodes.
*/
if (DIP(dp, di_flags) & SF_LOG)
return;
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (CHECKNODUMP(dp) &&
(DIP(dp, di_mtime) >= spcl.c_ddate ||
DIP(dp, di_ctime) >= spcl.c_ddate)) {
SETINO(ino, dumpinomap);
if (mode != IFREG && mode != IFDIR && mode != IFLNK)
*tapesize += 1;
else
*tapesize += blockest(dp);
return;
}
if (mode == IFDIR) {
if (!CHECKNODUMP(dp))
CLRINO(ino, usedinomap);
*dirskipped = 1;
}
}
/*
* Dump pass 2.
*
* Scan each directory on the filesystem to see if it has any modified
* files in it. If it does, and has not already been added to the dump
* list (because it was itself modified), then add it. If a directory
* has not been modified itself, contains no modified files and has no
* subdirectories, then it can be deleted from the dump list and from
* the list of directories. By deleting it from the list of directories,
* its parent may now qualify for the same treatment on this or a later
* pass using this algorithm.
*/
int
mapdirs(ino_t maxino, off_t *tapesize)
{
union dinode *dp;
int i, isdir;
char *map;
ino_t ino;
union dinode di;
off_t filesize;
int ret, change = 0;
isdir = 0; /* XXX just to get gcc to shut up */
for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
isdir = *map++;
else
isdir >>= 1;
if ((isdir & 1) == 0 || TSTINO(ino, dumpinomap))
continue;
dp = getino(ino, &i);
/*
* inode buf may change in searchdir().
*/
if (sblock->fs_magic == FS_UFS1_MAGIC)
di.dp1 = dp->dp1;
else
di.dp2 = dp->dp2;
filesize = (off_t)DIP(dp, di_size);
for (ret = 0, i = 0; filesize > 0 && i < NDADDR; i++) {
if (DIP(&di, di_db[i]) != 0)
ret |= searchdir(ino, DIP(&di, di_db[i]),
sblksize(sblock, DIP(dp, di_size), i),
filesize);
if (ret & HASDUMPEDFILE)
filesize = 0;
else
filesize -= sblock->fs_bsize;
}
for (i = 0; filesize > 0 && i < NIADDR; i++) {
if (DIP(&di, di_ib[i]) == 0)
continue;
ret |= dirindir(ino, DIP(&di, di_ib[i]), i, &filesize);
}
if (ret & HASDUMPEDFILE) {
SETINO(ino, dumpinomap);
*tapesize += blockest(dp);
change = 1;
continue;
}
if ((ret & HASSUBDIRS) == 0) {
if (!TSTINO(ino, dumpinomap)) {
CLRINO(ino, dumpdirmap);
change = 1;
}
}
}
return (change);
}
/*
* Scan a disk block containing directory information looking to see if
* any of the entries are on the dump list and to see if the directory
* contains any subdirectories.
*/
static int
searchdir(ufs1_ino_t ino, daddr_t blkno, long size, long filesize,
long *tape_size, int nodump)
{
struct direct *dp;
struct ufs1_dinode *ip;
long loc, ret = 0;
char dblk[MAXBSIZE];
bread(fsbtodb(sblock, blkno), dblk, (int)size);
if (filesize < size)
size = filesize;
for (loc = 0; loc < size; ) {
dp = (struct direct *)(dblk + loc);
if (dp->d_reclen == 0) {
msg("corrupted directory, inumber %d\n", ino);
break;
}
loc += dp->d_reclen;
if (dp->d_ino == 0)
continue;
if (dp->d_name[0] == '.') {
if (dp->d_name[1] == '\0')
continue;
if (dp->d_name[1] == '.' && dp->d_name[2] == '\0')
continue;
}
if (nodump) {
ip = getino(dp->d_ino);
if (TSTINO(dp->d_ino, dumpinomap)) {
CLRINO(dp->d_ino, dumpinomap);
*tape_size -= blockest(ip);
}
/*
* Add back to dumpdirmap and remove from usedinomap
* to propagate nodump.
*/
if ((ip->di_mode & IFMT) == IFDIR) {
SETINO(dp->d_ino, dumpdirmap);
CLRINO(dp->d_ino, usedinomap);
ret |= HASSUBDIRS;
}
} else {
if (TSTINO(dp->d_ino, dumpinomap)) {
ret |= HASDUMPEDFILE;
if (ret & HASSUBDIRS)
break;
}
if (TSTINO(dp->d_ino, dumpdirmap)) {
ret |= HASSUBDIRS;
if (ret & HASDUMPEDFILE)
break;
}
}
}
return (ret);
}
/*
* Dump pass 1.
*
* Walk the inode list for a filesystem to find all allocated inodes
* that have been modified since the previous dump time. Also, find all
* the directories in the filesystem.
*/
int
mapfiles(ufs1_ino_t maxino, long *tape_size)
{
int mode;
ufs1_ino_t ino;
struct ufs1_dinode *dp;
int anydirskipped = 0;
for (ino = ROOTINO; ino < maxino; ino++) {
dp = getino(ino);
if ((mode = (dp->di_mode & IFMT)) == 0)
continue;
/*
* Everything must go in usedinomap so that a check
* for "in dumpdirmap but not in usedinomap" to detect
* dirs with nodump set has a chance of succeeding
* (this is used in mapdirs()).
*/
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp)) {
SETINO(ino, dumpinomap);
if (mode != IFREG && mode != IFDIR && mode != IFLNK)
*tape_size += 1;
else
*tape_size += blockest(dp);
continue;
}
if (mode == IFDIR) {
if (!nonodump && (dp->di_flags & UF_NODUMP))
CLRINO(ino, usedinomap);
anydirskipped = 1;
}
}
/*
* Restore gets very upset if the root is not dumped,
* so ensure that it always is dumped.
*/
SETINO(ROOTINO, dumpinomap);
return (anydirskipped);
}
/*
* Determine if given inode should be dumped
*/
void
mapfileino(ino_t ino, off_t *tapesize, int *dirskipped)
{
int mode;
union dinode *dp;
dp = getino(ino, &mode);
if (mode == 0)
return;
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp)) {
SETINO(ino, dumpinomap);
if (mode != IFREG && mode != IFDIR && mode != IFLNK)
*tapesize += 1;
else
*tapesize += blockest(dp);
return;
}
if (mode == IFDIR)
*dirskipped = 1;
}
/*
* Scan a disk block containing directory information looking to see if
* any of the entries are on the dump list and to see if the directory
* contains any subdirectories.
*/
static int
searchdir(ino_t ino, daddr_t blkno, long size, off_t filesize,
int64_t *tapesize, int nodump)
{
struct direct *dp;
union dinode *ip;
long loc;
static caddr_t dblk;
int mode, ret = 0;
if (dblk == NULL && (dblk = malloc(sblock->fs_bsize)) == NULL)
quit("searchdir: cannot allocate indirect memory.\n");
bread(fsbtodb(sblock, blkno), dblk, (int)size);
if (filesize < size)
size = filesize;
for (loc = 0; loc < size; ) {
dp = (struct direct *)(dblk + loc);
if (dp->d_reclen == 0) {
msg("corrupted directory, inumber %llu\n",
(unsigned long long)ino);
break;
}
loc += dp->d_reclen;
if (dp->d_ino == 0)
continue;
if (dp->d_name[0] == '.') {
if (dp->d_name[1] == '\0')
continue;
if (dp->d_name[1] == '.' && dp->d_name[2] == '\0')
continue;
}
if (nodump) {
ip = getino(dp->d_ino, &mode);
if (TSTINO(dp->d_ino, dumpinomap)) {
CLRINO(dp->d_ino, dumpinomap);
*tapesize -= blockest(ip);
}
/*
* Add back to dumpdirmap and remove from usedinomap
* to propagate nodump.
*/
if (mode == IFDIR) {
SETINO(dp->d_ino, dumpdirmap);
CLRINO(dp->d_ino, usedinomap);
ret |= HASSUBDIRS;
}
} else {
if (TSTINO(dp->d_ino, dumpinomap)) {
ret |= HASDUMPEDFILE;
if (ret & HASSUBDIRS)
break;
}
if (TSTINO(dp->d_ino, dumpdirmap)) {
ret |= HASSUBDIRS;
if (ret & HASDUMPEDFILE)
break;
}
}
}
return (ret);
}
/*
* Dump pass 2.
*
* Scan each directory on the filesystem to see if it has any modified
* files in it. If it does, and has not already been added to the dump
* list (because it was itself modified), then add it. If a directory
* has not been modified itself, contains no modified files and has no
* subdirectories, then it can be deleted from the dump list and from
* the list of directories. By deleting it from the list of directories,
* its parent may now qualify for the same treatment on this or a later
* pass using this algorithm.
*/
int
mapdirs(ino_t maxino, int64_t *tapesize)
{
union dinode *dp;
int i, isdir, nodump;
char *map;
ino_t ino;
union dinode di;
off_t filesize;
int ret, change = 0;
isdir = 0; /* XXX just to get gcc to shut up */
for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
isdir = *map++;
else
isdir >>= 1;
/*
* If a directory has been removed from usedinomap, it
* either has the nodump flag set, or has inherited
* it. Although a directory can't be in dumpinomap if
* it isn't in usedinomap, we have to go through it to
* propagate the nodump flag.
*/
nodump = !nonodump && !TSTINO(ino, usedinomap);
if ((isdir & 1) == 0 || (TSTINO(ino, dumpinomap) && !nodump))
continue;
dp = getino(ino, &i);
/*
* inode buf may change in searchdir().
*/
if (sblock->fs_magic == FS_UFS1_MAGIC)
di.dp1 = dp->dp1;
else
di.dp2 = dp->dp2;
filesize = (off_t)DIP(dp, di_size);
for (ret = 0, i = 0; filesize > 0 && i < NDADDR; i++) {
if (DIP(&di, di_db[i]) != 0)
ret |= searchdir(ino, DIP(&di, di_db[i]),
sblksize(sblock, DIP(dp, di_size), i),
filesize, tapesize, nodump);
if (ret & HASDUMPEDFILE)
filesize = 0;
else
filesize -= sblock->fs_bsize;
}
for (i = 0; filesize > 0 && i < NIADDR; i++) {
if (DIP(&di, di_ib[i]) == 0)
continue;
ret |= dirindir(ino, DIP(&di, di_ib[i]), i, &filesize,
tapesize, nodump);
}
if (ret & HASDUMPEDFILE) {
SETINO(ino, dumpinomap);
*tapesize += blockest(dp);
change = 1;
continue;
}
if (nodump) {
if (ret & HASSUBDIRS)
change = 1; /* subdirs inherit nodump */
CLRINO(ino, dumpdirmap);
} else if ((ret & HASSUBDIRS) == 0) {
if (!TSTINO(ino, dumpinomap)) {
CLRINO(ino, dumpdirmap);
change = 1;
}
}
}
return (change);
}
/*
* Dump pass 2.
*
* Scan each directory on the filesystem to see if it has any modified
* files in it. If it does, and has not already been added to the dump
* list (because it was itself modified), then add it. If a directory
* has not been modified itself, contains no modified files and has no
* subdirectories, then it can be deleted from the dump list and from
* the list of directories. By deleting it from the list of directories,
* its parent may now qualify for the same treatment on this or a later
* pass using this algorithm.
*/
int
mapdirs(ufs1_ino_t maxino, long *tape_size)
{
struct ufs1_dinode *dp;
int isdir, nodump;
unsigned int i;
char *map;
ufs1_ino_t ino;
struct ufs1_dinode di;
long filesize;
int ret, change = 0;
isdir = 0; /* XXX just to get gcc to shut up */
for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
if (((ino - 1) % NBBY) == 0) /* map is offset by 1 */
isdir = *map++;
else
isdir >>= 1;
/*
* If a directory has been removed from usedinomap, it
* either has the nodump flag set, or has inherited
* it. Although a directory can't be in dumpinomap if
* it isn't in usedinomap, we have to go through it to
* propagate the nodump flag.
*/
nodump = !nonodump && (TSTINO(ino, usedinomap) == 0);
if ((isdir & 1) == 0 || (TSTINO(ino, dumpinomap) && !nodump))
continue;
dp = getino(ino);
di = *dp; /* inode buf may change in searchdir(). */
filesize = di.di_size;
for (ret = 0, i = 0; filesize > 0 && i < NDADDR; i++) {
if (di.di_db[i] != 0) {
ret |= searchdir(ino, di.di_db[i],
(long)dblksize(sblock, &di, i),
filesize, tape_size, nodump);
}
if (ret & HASDUMPEDFILE)
filesize = 0;
else
filesize -= sblock->fs_bsize;
}
for (i = 0; filesize > 0 && i < NIADDR; i++) {
if (di.di_ib[i] == 0)
continue;
ret |= dirindir(ino, di.di_ib[i], i, &filesize,
tape_size, nodump);
}
if (ret & HASDUMPEDFILE) {
SETINO(ino, dumpinomap);
*tape_size += blockest(&di);
change = 1;
continue;
}
if (nodump) {
if (ret & HASSUBDIRS)
change = 1; /* subdirs inherit nodump */
CLRINO(ino, dumpdirmap);
} else if ((ret & HASSUBDIRS) == 0)
if (!TSTINO(ino, dumpinomap)) {
CLRINO(ino, dumpdirmap);
change = 1;
}
}
return (change);
}
/*
* Dump pass 1.
*
* Walk the inode list for a file system to find all allocated inodes
* that have been modified since the previous dump time. Also, find all
* the directories in the file system.
*/
int
mapfiles(ino_t maxino, long *tapesize)
{
int i, cg, mode, inosused;
int anydirskipped = 0;
union dinode *dp;
struct cg *cgp;
ino_t ino;
u_char *cp;
if ((cgp = malloc(sblock->fs_cgsize)) == NULL)
quit("mapfiles: cannot allocate memory.\n");
for (cg = 0; cg < sblock->fs_ncg; cg++) {
ino = cg * sblock->fs_ipg;
bread(fsbtodb(sblock, cgtod(sblock, cg)), (char *)cgp,
sblock->fs_cgsize);
if (sblock->fs_magic == FS_UFS2_MAGIC)
inosused = cgp->cg_initediblk;
else
inosused = sblock->fs_ipg;
/*
* If we are using soft updates, then we can trust the
* cylinder group inode allocation maps to tell us which
* inodes are allocated. We will scan the used inode map
* to find the inodes that are really in use, and then
* read only those inodes in from disk.
*/
if (sblock->fs_flags & FS_DOSOFTDEP) {
if (!cg_chkmagic(cgp))
quit("mapfiles: cg %d: bad magic number\n", cg);
cp = &cg_inosused(cgp)[(inosused - 1) / CHAR_BIT];
for ( ; inosused > 0; inosused -= CHAR_BIT, cp--) {
if (*cp == 0)
continue;
for (i = 1 << (CHAR_BIT - 1); i > 0; i >>= 1) {
if (*cp & i)
break;
inosused--;
}
break;
}
if (inosused <= 0)
continue;
}
for (i = 0; i < inosused; i++, ino++) {
if (ino < ROOTINO ||
(dp = getino(ino, &mode)) == NULL ||
(mode & IFMT) == 0)
continue;
if (ino >= maxino) {
msg("Skipping inode %d >= maxino %d\n",
ino, maxino);
continue;
}
/*
* Everything must go in usedinomap so that a check
* for "in dumpdirmap but not in usedinomap" to detect
* dirs with nodump set has a chance of succeeding
* (this is used in mapdirs()).
*/
SETINO(ino, usedinomap);
if (mode == IFDIR)
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp)) {
SETINO(ino, dumpinomap);
if (mode != IFREG &&
mode != IFDIR &&
mode != IFLNK)
*tapesize += 1;
else
*tapesize += blockest(dp);
continue;
}
if (mode == IFDIR) {
if (!nonodump &&
(DIP(dp, di_flags) & UF_NODUMP))
CLRINO(ino, usedinomap);
anydirskipped = 1;
}
}
}
/*
* Restore gets very upset if the root is not dumped,
* so ensure that it always is dumped.
*/
SETINO(ROOTINO, dumpinomap);
return (anydirskipped);
}