* 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@noos.fr>, 1999-2000
- * Stelian Pop <pop@noos.fr> - Alcôve <www.alcove.fr>, 2000
+ * Stelian Pop <stelian@popies.net>, 1999-2000
+ * Stelian Pop <stelian@popies.net> - Alcôve <www.alcove.com>, 2000-2002
*/
/*-
#ifndef lint
static const char rcsid[] =
- "$Id: traverse.c,v 1.29 2001/03/21 09:37:13 stelian Exp $";
+ "$Id: traverse.c,v 1.41 2002/01/25 14:59:53 stelian Exp $";
#endif /* not lint */
#include <config.h>
#include <sys/param.h>
#include <sys/stat.h>
#ifdef __linux__
+#ifdef HAVE_EXT2FS_EXT2_FS_H
+#include <ext2fs/ext2_fs.h>
+#else
#include <linux/ext2_fs.h>
+#endif
#include <ext2fs/ext2fs.h>
#include <bsdcompat.h>
#include <compaterr.h>
static int searchdir __P((dump_ino_t ino, daddr_t blkno, long size, long filesize));
#endif
static void mapfileino __P((dump_ino_t ino, struct dinode const *dp, long *tapesize, int *dirskipped));
-static int exclude_ino __P((dump_ino_t ino));
-extern dump_ino_t iexclude_list[IEXCLUDE_MAXNUM]; /* the inode exclude list */
-extern int iexclude_num; /* number of elements in list */
#ifdef HAVE_EXT2_JOURNAL_INUM
#define ext2_journal_ino(sb) (sb->s_journal_inum)
#define ext2_journal_ino(sb) (*((__u32 *)sb + 0x38))
#endif
#ifndef HAVE_EXT2_INO_T
-#define ext2_ino_t __u32
+typedef ino_t ext2_ino_t;
#endif
#ifndef EXT3_FEATURE_COMPAT_HAS_JOURNAL
#define EXT2_LIB_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_RECOVER | \
EXT2_FEATURE_INCOMPAT_FILETYPE)
#endif
+#ifndef EXT2_RESIZE_INO
+#define EXT2_RESIZE_INO 7
+#endif
int dump_fs_open(const char *disk, ext2_filsys *fs)
{
retval = ext2fs_open(disk, EXT2_FLAG_FORCE, 0, 0, unix_io_manager, fs);
if (!retval) {
struct ext2_super_block *es = (*fs)->super;
- ext2_ino_t journal_ino = ext2_journal_ino(es);
+ dump_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 (es->s_feature_compat &
+ else {
+ if (es->s_feature_compat &
EXT3_FEATURE_COMPAT_HAS_JOURNAL &&
- journal_ino &&
- !exclude_ino((dump_ino_t)journal_ino)) {
- iexclude_list[iexclude_num++] = (dump_ino_t)journal_ino;
- msg("Added ext3 journal inode %d to exclude list\n",
- journal_ino);
+ journal_ino)
+ do_exclude_ino(journal_ino, "journal inode");
+ do_exclude_ino(EXT2_RESIZE_INO, "resize inode");
}
}
return retval;
return (blkest + 1);
}
-/*
- * This tests whether an inode is in the exclude list
- */
-int
-exclude_ino(dump_ino_t ino)
-{
- /* 04-Feb-00 ILC */
- if (iexclude_num) { /* if there are inodes in the exclude list */
- int idx; /* then check this inode against it */
- for (idx = 0; idx < iexclude_num; idx++)
- if (ino == iexclude_list[idx])
- return 1;
- }
- return 0;
-}
-
/* Auxiliary macro to pick up files changed since previous dump. */
#define CHANGEDSINCE(dp, t) \
((dp)->di_mtime >= (t) || (dp)->di_ctime >= (t))
}
#endif /* __linux__ */
+#ifdef __linux__
+int
+maponefile(dump_ino_t maxino, long *tapesize, char *directory)
+{
+ errcode_t retval;
+ ext2_ino_t dir_ino;
+ char dir_name [MAXPATHLEN];
+ int i, anydirskipped = 0;
+
+ /*
+ * Mark every directory in the path as being dumped
+ */
+ for (i = 0; i < strlen (directory); i++) {
+ if (directory[i] == '/') {
+ strncpy (dir_name, directory, i);
+ dir_name[i] = '\0';
+ retval = ext2fs_namei(fs, ROOTINO, ROOTINO,
+ dir_name, &dir_ino);
+ if (retval) {
+ com_err(disk, retval,
+ "while translating %s", dir_name);
+ exit(X_ABORT);
+ }
+ mapfileino((dump_ino_t) dir_ino, 0,
+ tapesize, &anydirskipped);
+ }
+ }
+ /*
+ * Mark the final directory
+ */
+ retval = ext2fs_namei(fs, ROOTINO, ROOTINO, directory, &dir_ino);
+ if (retval) {
+ com_err(disk, retval, "while translating %s", directory);
+ exit(X_ABORT);
+ }
+ mapfileino((dump_ino_t)dir_ino, 0, tapesize, &anydirskipped);
+
+ mapfileino(ROOTINO, 0, tapesize, &anydirskipped);
+
+ /*
+ * Restore gets very upset if the root is not dumped,
+ * so ensure that it always is dumped.
+ */
+ SETINO(ROOTINO, dumpdirmap);
+ return anydirskipped;
+}
+#endif /* __linux__ */
+
#ifdef __linux__
struct mapfile_context {
long *tapesize;
dumpino(struct dinode *dp, dump_ino_t ino)
{
unsigned long cnt;
- fsizeT size;
+ fsizeT size, remaining;
char buf[TP_BSIZE];
struct old_bsd_inode obi;
+ int i;
#ifdef __linux__
struct block_context bc;
#else
bc.next_block = NDADDR;
ext2fs_block_iterate2(fs, (ext2_ino_t)ino, 0, NULL, dumponeblock, (void *)&bc);
+ /* deal with holes at the end of the inode */
+ if (i_size > ((u_quad_t)bc.next_block) * sblock->fs_fsize) {
+ remaining = i_size - ((u_quad_t)bc.next_block) * sblock->fs_fsize;
+ for (i = 0; i < howmany(remaining, sblock->fs_fsize); i++) {
+ bc.buf[bc.cnt++] = 0;
+ if (bc.cnt == bc.max) {
+ blksout (bc.buf, bc.cnt, bc.ino);
+ bc.cnt = 0;
+ }
+ }
+ }
if (bc.cnt > 0) {
blksout (bc.buf, bc.cnt, bc.ino);
}
writerec(cp, 0);
}
-/*
- * Write a header record to the dump tape.
- */
#if defined __linux__ && !defined(int32_t)
#define int32_t __s32
#endif
+
+/*
+ * Compute and fill in checksum information.
+ */
void
-writeheader(dump_ino_t ino)
+mkchecksum(union u_spcl *tmpspcl)
{
- register int32_t sum, cnt, *lp;
+ int32_t sum, cnt, *lp;
- spcl.c_inumber = ino;
- spcl.c_magic = NFS_MAGIC;
- spcl.c_checksum = 0;
- lp = (int32_t *)&spcl;
+ tmpspcl->s_spcl.c_checksum = 0;
+ lp = (int32_t *)&tmpspcl->s_spcl;
sum = 0;
cnt = sizeof(union u_spcl) / (4 * sizeof(int32_t));
while (--cnt >= 0) {
sum += *lp++;
sum += *lp++;
}
- spcl.c_checksum = CHECKSUM - sum;
+ tmpspcl->s_spcl.c_checksum = CHECKSUM - sum;
+}
+
+/*
+ * Write a header record to the dump tape.
+ */
+void
+writeheader(dump_ino_t ino)
+{
+ spcl.c_inumber = ino;
+ spcl.c_magic = NFS_MAGIC;
+ mkchecksum((union u_spcl *)&spcl);
writerec((char *)&spcl, 1);
}
/*
* Read a chunk of data from the disk.
* Try to recover from hard errors by reading in sector sized pieces.
- * Error recovery is attempted at most BREADEMAX times before seeking
+ * Error recovery is attempted at most breademax times before seeking
* consent from the operator to continue.
*/
int breaderrors = 0;
-#define BREADEMAX 32
void
bread(daddr_t blkno, char *buf, int size)
else
msg("short read error from %s: [block %d]: count=%d, got=%d\n",
disk, blkno, size, cnt);
- if (++breaderrors > BREADEMAX) {
+ if (++breaderrors > breademax) {
msg("More than %d block read errors from %d\n",
- BREADEMAX, disk);
+ breademax, disk);
broadcast("DUMP IS AILING!\n");
msg("This is an unrecoverable error.\n");
if (!query("Do you want to attempt to continue?")){
git.wh0rd.org / dump.git / blobdiff