* Ported to Linux's Second Extended File System as part of the
* dump and restore backup suit
* Remy Card <card@Linux.EU.Org>, 1994-1997
- * Stelian Pop <pop@cybercable.fr>, 1999-2000
- * Stelian Pop <pop@cybercable.fr> - Alcôve <www.alcove.fr>, 2000
+ * Stelian Pop <pop@noos.fr>, 1999-2000
+ * Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
*/
/*-
#ifndef lint
static const char rcsid[] =
- "$Id: traverse.c,v 1.22 2000/11/10 14:42:25 stelian Exp $";
+ "$Id: traverse.c,v 1.26 2001/03/19 13:22:49 stelian Exp $";
#endif /* not lint */
+#include <config.h>
+#include <ctype.h>
+#include <stdio.h>
+#ifdef __STDC__
+#include <string.h>
+#include <unistd.h>
+#endif
+
#include <sys/param.h>
#include <sys/stat.h>
#ifdef __linux__
#include <linux/ext2_fs.h>
+#include <ext2fs/ext2fs.h>
#include <bsdcompat.h>
#include <compaterr.h>
#include <stdlib.h>
-#define swab32(x) ext2fs_swab32(x)
-#else /* __linux__ */
-#define swab32(x) x
-#ifdef sunos
+#elif defined sunos
#include <sys/vnode.h>
#include <ufs/fs.h>
#include <ufs/ufs/dir.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
-#endif
#endif /* __linux__ */
#include <protocols/dumprestore.h>
-#include <ctype.h>
-#include <stdio.h>
-#ifdef __STDC__
-#include <string.h>
-#include <unistd.h>
-#endif
-
-#ifdef __linux__
-#include <ext2fs/ext2fs.h>
-#endif
-
#include "dump.h"
#define HASDUMPEDFILE 0x1
static void dmpindir __P((ino_t ino, daddr_t blk, int level, fsizeT *size));
static int searchdir __P((ino_t ino, daddr_t blkno, long size, long filesize));
#endif
-static void mapfileino __P((ino_t ino, long *tapesize, int *dirskipped));
+static void mapfileino __P((ino_t ino, struct dinode const *dp, long *tapesize, int *dirskipped));
static int exclude_ino __P((ino_t ino));
+extern ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
+extern int iexclude_num; /* number of elements in list */
+
+/* Temporary fix waiting for Andreas fixes... */
+#define ext2_ino_t ino_t
+#undef EXT3_FEATURE_INCOMPAT_RECOVER
-/* #define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 */
-#ifdef EXT3_FEATURE_INCOMPAT_RECOVER
+#ifndef EXT3_FEATURE_COMPAT_HAS_JOURNAL
+#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
+#endif
+#ifndef EXT2_FEATURE_INCOMPAT_FILETYPE
+#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
+#endif
+#ifndef EXT3_FEATURE_INCOMPAT_RECOVER
+#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004
#define FORCE_OPEN EXT2_FLAG_FORCE
+#define ext2_journal_ino(sb) (*((__u32 *)sb + 0x38))
#else
#define FORCE_OPEN 0
+#define ext2_journal_ino(sb) (sb->s_journal_inum)
+#endif
+#ifndef EXT3_FEATURE_INCOMPAT_JOURNAL_DEV
+#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008
+#endif
+
+#ifndef EXT2_LIB_FEATURE_INCOMPAT_SUPP
+#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_RECOVER | \
+ EXT2_FEATURE_INCOMPAT_FILETYPE)
#endif
int dump_fs_open(const char *disk, ext2_filsys *fs)
{
int retval;
- struct ext2fs_sb *s;
retval = ext2fs_open(disk, FORCE_OPEN, 0, 0, unix_io_manager, fs);
-#if defined(EXT2_LIB_FEATURE_COMPAT_SUPP) && defined(EXT2_LIB_FEATURE_INCOMPAT_SUPP) && defined(EXT2_LIB_FEATURE_RO_COMPAT_SUPP) && defined(EXT2_ET_UNSUPP_FEATURE) && defined(EXT2_ET_RO_UNSUPP_FEATURE)
if (!retval) {
- s = (struct ext2fs_sb *) (*fs)->super;
- if ((s->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) ||
-#ifdef EXT3_FEATURE_INCOMPAT_RECOVER
- (s->s_feature_incompat & ~(EXT3_FEATURE_INCOMPAT_RECOVER | EXT2_LIB_FEATURE_INCOMPAT_SUPP))) {
-#else
- (s->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP)) {
-#endif
+ struct ext2_super_block *es = (*fs)->super;
+ ext2_ino_t journal_ino = ext2_journal_ino(es);
+ if (es->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV){
+ fprintf(stderr, "This an journal, not a filesystem!\n");
retval = EXT2_ET_UNSUPP_FEATURE;
+ ext2fs_close(*fs);
}
- else if (s->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) {
- retval = EXT2_ET_RO_UNSUPP_FEATURE;
+ else if ((retval = es->s_feature_incompat &
+ ~(EXT2_LIB_FEATURE_INCOMPAT_SUPP |
+ EXT3_FEATURE_INCOMPAT_RECOVER))) {
+ fprintf(stderr,
+ "Unsupported feature(s) 0x%x in filesystem\n",
+ retval);
+ retval = EXT2_ET_UNSUPP_FEATURE;
+ ext2fs_close(*fs);
+ }
+ else if (es->s_feature_compat &
+ EXT3_FEATURE_COMPAT_HAS_JOURNAL && journal_ino &&
+ !exclude_ino(journal_ino)) {
+ iexclude_list[iexclude_num++] = journal_ino;
+ msg("Added ext3 journal inode %d to exclude list\n",
+ journal_ino);
}
}
-#endif /* defined && defined && defined... */
return retval;
}
* hence the estimate may be high.
*/
long
-blockest(struct dinode *dp)
+blockest(struct dinode const *dp)
{
long blkest, sizeest;
+ u_quad_t i_size;
/*
* dp->di_size is the size of the file in bytes.
* dump blocks (sizeest vs. blkest in the indirect block
* calculation).
*/
- blkest = howmany(dbtob(dp->di_blocks), TP_BSIZE);
- sizeest = howmany(dp->di_size, TP_BSIZE);
+ blkest = howmany((u_quad_t)dp->di_blocks*fs->blocksize, TP_BSIZE);
+ i_size = dp->di_size + ((u_quad_t) dp->di_size_high << 32);
+ sizeest = howmany(i_size, TP_BSIZE);
if (blkest > sizeest)
blkest = sizeest;
#ifdef __linux__
- if (dp->di_size > fs->blocksize * NDADDR) {
+ if (i_size > fs->blocksize * NDADDR) {
/* calculate the number of indirect blocks on the dump tape */
blkest +=
howmany(sizeest - NDADDR * fs->blocksize / TP_BSIZE,
NINDIR(sblock) * EXT2_FRAGS_PER_BLOCK(fs->super));
}
#else
- if (dp->di_size > sblock->fs_bsize * NDADDR) {
+ if (i_size > sblock->fs_bsize * NDADDR) {
/* calculate the number of indirect blocks on the dump tape */
blkest +=
howmany(sizeest - NDADDR * sblock->fs_bsize / TP_BSIZE,
return (blkest + 1);
}
-extern ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
-extern int iexclude_num; /* number of elements in the list */
-
/*
* This tests whether an inode is in the exclude list
*/
(!exclude_ino(ino)))
/*
- * Determine if given inode should be dumped
+ * Determine if given inode should be dumped. "dp" must either point to a
+ * copy of the given inode, or be NULL (in which case it is fetched.)
*/
-void
-mapfileino(ino_t ino, long *tapesize, int *dirskipped)
+static void
+mapfileino(ino_t ino, struct dinode const *dp, long *tapesize, int *dirskipped)
{
register int mode;
- register struct dinode *dp;
/*
* Skip inode if we've already marked it for dumping
*/
if (TSTINO(ino, usedinomap))
return;
- dp = getino(ino);
+ if (!dp)
+ dp = getino(ino);
if ((mode = (dp->di_mode & IFMT)) == 0)
return;
#ifdef __linux__
* that have been modified since the previous dump time. Also, find all
* the directories in the filesystem.
*/
+#ifdef __linux__
+int
+mapfiles(ino_t maxino, long *tapesize)
+{
+ ino_t ino;
+ int anydirskipped = 0;
+ ext2_inode_scan scan;
+ errcode_t err;
+ struct ext2_inode inode;
+
+ /*
+ * We use libext2fs's inode scanning routines, which are particularly
+ * robust. (Note that getino cannot return an error.)
+ */
+ err = ext2fs_open_inode_scan(fs, 0, &scan);
+ if (err) {
+ com_err(disk, err, "while opening inodes\n");
+ exit(X_ABORT);
+ }
+ for (;;) {
+ err = ext2fs_get_next_inode(scan, &ino, &inode);
+ if (err == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE)
+ continue;
+ if (err) {
+ com_err(disk, err, "while scanning inode #%ld\n",
+ (long)ino);
+ exit(X_ABORT);
+ }
+ if (ino == 0)
+ break;
+
+ curino = ino;
+ mapfileino(ino, (struct dinode const *)&inode, tapesize,
+ &anydirskipped);
+ }
+ ext2fs_close_inode_scan(scan);
+
+ /*
+ * Restore gets very upset if the root is not dumped,
+ * so ensure that it always is dumped.
+ */
+ SETINO(ROOTINO, dumpinomap);
+ return (anydirskipped);
+}
+#else
int
mapfiles(ino_t maxino, long *tapesize)
{
SETINO(ROOTINO, dumpinomap);
return (anydirskipped);
}
+#endif /* __linux__ */
#ifdef __linux__
struct mapfile_context {
static int
mapfilesindir(struct ext2_dir_entry *dirent, int offset, int blocksize, char *buf, void *private)
{
- register struct dinode *dp;
+ register struct dinode const *dp;
register int mode;
errcode_t retval;
struct mapfile_context *mfc;
ino = dirent->inode;
mfc = (struct mapfile_context *)private;
+ dp = getino(dirent->inode);
- mapfileino(dirent->inode, mfc->tapesize, mfc->anydirskipped);
+ mapfileino(dirent->inode, dp, mfc->tapesize, mfc->anydirskipped);
- dp = getino(dirent->inode);
mode = dp->di_mode & IFMT;
if (mode == IFDIR && dp->di_nlink != 0 && dp->di_dtime == 0) {
if ((dirent->name[0] != '.' || ( dirent->name_len & 0xFF ) != 1) &&
dir_name);
exit(X_ABORT);
}
- mapfileino(dir_ino, tapesize, &anydirskipped);
+ mapfileino(dir_ino, 0, tapesize, &anydirskipped);
}
}
/*
com_err(disk, retval, "while translating %s", directory);
exit(X_ABORT);
}
- mapfileino(dir_ino, tapesize, &anydirskipped);
+ mapfileino(dir_ino, 0, tapesize, &anydirskipped);
mfc.tapesize = tapesize;
mfc.anydirskipped = &anydirskipped;
* Ensure that the root inode actually appears in the file list
* for a subdir
*/
- mapfileino(ROOTINO, tapesize, &anydirskipped);
+ mapfileino(ROOTINO, 0, tapesize, &anydirskipped);
/*
* Restore gets very upset if the root is not dumped,
* so ensure that it always is dumped.
* Dump a block to the tape
*/
static int
-dumponeblock(ext2_filsys fs, blk_t *blocknr, int blockcnt, void *private)
+dumponeblock(ext2_filsys fs, blk_t *blocknr, e2_blkcnt_t blockcnt,
+ blk_t ref_block, int ref_offset, void * private)
{
struct block_context *p;
int i;
void
dumpino(struct dinode *dp, ino_t ino)
{
- int cnt;
+ unsigned long cnt;
fsizeT size;
char buf[TP_BSIZE];
struct old_bsd_inode obi;
#else
int ind_level;
#endif
+ u_quad_t i_size = dp->di_size + ((u_quad_t) dp->di_size_high << 32);
if (newtape) {
newtape = 0;
obi.di_mode = dp->di_mode;
obi.di_uid = dp->di_uid;
obi.di_gid = dp->di_gid;
- obi.di_qsize.v = (u_quad_t)dp->di_size;
+ obi.di_qsize.v = i_size;
obi.di_atime = dp->di_atime;
obi.di_mtime = dp->di_mtime;
obi.di_ctime = dp->di_ctime;
obi.di_flags = dp->di_flags;
obi.di_gen = dp->di_gen;
memmove(&obi.di_db, &dp->di_db, (NDADDR + NIADDR) * sizeof(daddr_t));
- if (dp->di_file_acl || dp->di_dir_acl)
+ if (dp->di_file_acl)
warn("ACLs in inode #%ld won't be dumped", (long)ino);
memmove(&spcl.c_dinode, &obi, sizeof(obi));
#else /* __linux__ */
* Check for short symbolic link.
*/
#ifdef __linux__
- if (dp->di_size > 0 &&
- dp->di_size < EXT2_N_BLOCKS * sizeof (daddr_t)) {
+ if (i_size > 0 &&
+ i_size < EXT2_N_BLOCKS * sizeof (daddr_t)) {
spcl.c_addr[0] = 1;
spcl.c_count = 1;
writeheader(ino);
case S_IFDIR:
#endif
case S_IFREG:
- if (dp->di_size > 0)
+ if (i_size)
break;
/* fall through */
msg("Warning: undefined file type 0%o\n", dp->di_mode & IFMT);
return;
}
- if (dp->di_size > NDADDR * sblock->fs_bsize)
+ if (i_size > NDADDR * sblock->fs_bsize)
#ifdef __linux__
cnt = NDADDR * EXT2_FRAGS_PER_BLOCK(fs->super);
#else
cnt = NDADDR * sblock->fs_frag;
#endif
else
- cnt = howmany(dp->di_size, sblock->fs_fsize);
+ cnt = howmany(i_size, sblock->fs_fsize);
blksout(&dp->di_db[0], cnt, ino);
- if ((size = dp->di_size - NDADDR * sblock->fs_bsize) <= 0)
+ if ((quad_t) (size = i_size - NDADDR * sblock->fs_bsize) <= 0)
return;
#ifdef __linux__
bc.max = NINDIR(sblock) * EXT2_FRAGS_PER_BLOCK(fs->super);
bc.ino = ino;
bc.next_block = NDADDR;
- ext2fs_block_iterate (fs, ino, 0, NULL, dumponeblock, (void *)&bc);
+ ext2fs_block_iterate2(fs, ino, 0, NULL, dumponeblock, (void *)&bc);
if (bc.cnt > 0) {
blksout (bc.buf, bc.cnt, bc.ino);
}
obi.di_flags = dp->di_flags;
obi.di_gen = dp->di_gen;
memmove(&obi.di_db, &dp->di_db, (NDADDR + NIADDR) * sizeof(daddr_t));
- if (dp->di_file_acl || dp->di_dir_acl)
+ if (dp->di_file_acl)
warn("ACLs in inode #%ld won't be dumped", (long)ino);
memmove(&spcl.c_dinode, &obi, sizeof(obi));
#else /* __linux__ */
*/
#if defined(EXT2_FLAG_SWAP_BYTES)
if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
- (fs->flags & EXT2_FLAG_SWAP_BYTES_READ)) {
+ (fs->flags & EXT2_FLAG_SWAP_BYTES_READ))
#endif
+ {
max = sblock->fs_bsize >> 2;
swapme = (blk_t *) idblk;
for (i = 0; i < max; i++, swapme++)
- *swapme = swab32(*swapme);
-#if defined(EXT2_FLAG_SWAP_BYTES)
+ *swapme = ext2fs_swab32(*swapme);
}
-#endif
-#endif
+#endif /* __linux__ */
else
memset(idblk, 0, (int)sblock->fs_bsize);
if (ind_level <= 0) {
/*
* Write a header record to the dump tape.
*/
+#if defined __linux__ && !defined(int32_t)
+#define int32_t __s32
+#endif
void
writeheader(ino_t ino)
{
-#ifdef __linux__
- register __s32 sum, cnt, *lp;
-#else
register int32_t sum, cnt, *lp;
-#endif
spcl.c_inumber = ino;
spcl.c_magic = NFS_MAGIC;
spcl.c_checksum = 0;
-#ifdef __linux__
- lp = (__s32 *)&spcl;
-#else
lp = (int32_t *)&spcl;
-#endif
sum = 0;
-#ifdef __linux__
- cnt = sizeof(union u_spcl) / (4 * sizeof(__s32));
-#else
cnt = sizeof(union u_spcl) / (4 * sizeof(int32_t));
-#endif
while (--cnt >= 0) {
sum += *lp++;
sum += *lp++;
getino(ino_t inum)
{
static struct dinode dinode;
+ errcode_t err;
curino = inum;
- ext2fs_read_inode(fs, inum, (struct ext2_inode *) &dinode);
+ err = ext2fs_read_inode(fs, inum, (struct ext2_inode *) &dinode);
+ if (err) {
+ com_err(disk, err, "while reading inode #%ld\n", (long)inum);
+ exit(X_ABORT);
+ }
return &dinode;
}
#else /* __linux__ */