* 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 1.31 2001/03/28 12:59:48 stelian Exp $";
+ "$Id: traverse.c,v 1.48 2002/07/17 10:18:52 stelian Exp $";
#endif /* not lint */
#include <config.h>
#include <string.h>
#include <unistd.h>
#endif
+#include <errno.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)
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");
+ msg("This is a journal, not a filesystem!\n");
retval = EXT2_ET_UNSUPP_FEATURE;
ext2fs_close(*fs);
}
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",
+ msg("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("Exclude ext3 journal inode %u\n",
- journal_ino);
- }
- if (!exclude_ino(EXT2_RESIZE_INO))
- iexclude_list[iexclude_num++] = EXT2_RESIZE_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 CSINCE(dp, t) \
+ ((dp)->di_ctime >= (t))
+#define MSINCE(dp, t) \
+ ((dp)->di_mtime >= (t))
#define CHANGEDSINCE(dp, t) \
- ((dp)->di_mtime >= (t) || (dp)->di_ctime >= (t))
+ (CSINCE(dp, t) || MSINCE(dp, t))
/* The NODUMP_FLAG macro tests if a file has the nodump flag. */
#ifdef UF_NODUMP
static void
mapfileino(dump_ino_t ino, struct dinode const *dp, long *tapesize, int *dirskipped)
{
- register int mode;
+ int mode;
/*
* Skip inode if we've already marked it for dumping
SETINO(ino, dumpdirmap);
if (WANTTODUMP(dp, ino)) {
SETINO(ino, dumpinomap);
+ if (!MSINCE(dp, spcl.c_ddate))
+ SETINO(ino, metainomap);
if (mode != IFREG && mode != IFDIR && mode != IFLNK)
*tapesize += 1;
else
int
mapfiles(dump_ino_t maxino, long *tapesize)
{
- register dump_ino_t ino;
+ dump_ino_t ino;
int anydirskipped = 0;
for (ino = ROOTINO; ino < maxino; ino++)
}
#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;
static int
mapfilesindir(struct ext2_dir_entry *dirent, int offset, int blocksize, char *buf, void *private)
{
- register struct dinode const *dp;
- register int mode;
+ struct dinode const *dp;
+ int mode;
errcode_t retval;
struct mapfile_context *mfc;
ext2_ino_t ino;
int
mapdirs(dump_ino_t maxino, long *tapesize)
{
- register struct dinode *dp;
- register int isdir;
- register char *map;
- register dump_ino_t ino;
+ struct dinode *dp;
+ int isdir;
+ char *map;
+ dump_ino_t ino;
#ifndef __linux__
- register int i;
+ int i;
long filesize;
#else
struct mapdirs_context mdc;
dirindir(dump_ino_t ino, daddr_t blkno, int ind_level, long *filesize)
{
int ret = 0;
- register int i;
+ int i;
daddr_t idblk[MAXNINDIR];
bread(fsbtodb(sblock, blkno), (char *)idblk, (int)sblock->fs_bsize);
ip = getino(dp->inode);
if (TSTINO(dp->inode, dumpinomap)) {
CLRINO(dp->inode, dumpinomap);
- CLRINO(dp->inode, usedinomap);
*tapesize -= blockest(ip);
}
- /* Add dir back to the dir map, to propagate nodump */
+ /* Add dir back to the dir map and remove from
+ * usedinomap to propagate nodump */
if ((ip->di_mode & IFMT) == IFDIR) {
SETINO(dp->inode, dumpdirmap);
+ CLRINO(dp->inode, usedinomap);
*ret |= HASSUBDIRS;
}
} else {
static int
searchdir(dump_ino_t ino, daddr_t blkno, long size, long filesize)
{
- register struct direct *dp;
- register long loc, ret = 0;
+ struct direct *dp;
+ long loc, ret = 0;
char dblk[MAXBSIZE];
bread(fsbtodb(sblock, blkno), dblk, (int)size);
* Dump the contents of an inode to tape.
*/
void
-dumpino(struct dinode *dp, dump_ino_t ino)
+dumpino(struct dinode *dp, dump_ino_t ino, int metaonly)
{
unsigned long cnt;
- fsizeT size;
+ fsizeT size, remaining;
char buf[TP_BSIZE];
- struct old_bsd_inode obi;
+ struct new_bsd_inode nbi;
+ int i;
#ifdef __linux__
struct block_context bc;
#else
int ind_level;
#endif
- u_quad_t i_size = dp->di_size + ((u_quad_t) dp->di_size_high << 32);
+ u_quad_t i_size;
+
+ if (metaonly)
+ i_size = 0;
+ else
+ i_size = dp->di_size + ((u_quad_t) dp->di_size_high << 32);
if (newtape) {
newtape = 0;
}
CLRINO(ino, dumpinomap);
#ifdef __linux__
- memset(&obi, 0, sizeof(obi));
- obi.di_mode = dp->di_mode;
- obi.di_uid = dp->di_uid;
- obi.di_gid = dp->di_gid;
- 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_nlink = dp->di_nlink;
- obi.di_blocks = dp->di_blocks;
- obi.di_flags = dp->di_flags;
- obi.di_gen = dp->di_gen;
- memmove(&obi.di_db, &dp->di_db, (NDADDR + NIADDR) * sizeof(daddr_t));
+ memset(&nbi, 0, sizeof(nbi));
+ nbi.di_mode = dp->di_mode;
+ nbi.di_nlink = dp->di_nlink;
+ nbi.di_ouid = dp->di_uid;
+ nbi.di_ogid = dp->di_gid;
+ nbi.di_size = i_size;
+ nbi.di_atime.tv_sec = dp->di_atime;
+ nbi.di_mtime.tv_sec = dp->di_mtime;
+ nbi.di_ctime.tv_sec = dp->di_ctime;
+ memmove(&nbi.di_db, &dp->di_db, (NDADDR + NIADDR) * sizeof(daddr_t));
+ nbi.di_flags = dp->di_flags;
+ nbi.di_blocks = dp->di_blocks;
+ nbi.di_gen = dp->di_gen;
+ nbi.di_uid = (((int32_t)dp->di_uidhigh) << 16) | dp->di_uid;
+ nbi.di_gid = (((int32_t)dp->di_gidhigh) << 16) | dp->di_gid;
if (dp->di_file_acl)
warn("ACLs in inode #%ld won't be dumped", (long)ino);
- memmove(&spcl.c_dinode, &obi, sizeof(obi));
+ memmove(&spcl.c_dinode, &nbi, sizeof(nbi));
#else /* __linux__ */
spcl.c_dinode = *dp;
#endif /* __linux__ */
spcl.c_type = TS_INODE;
spcl.c_count = 0;
+
+ if (metaonly && (dp->di_mode & S_IFMT)) {
+ spcl.c_flags |= DR_METAONLY;
+ spcl.c_count = 0;
+ writeheader(ino);
+ spcl.c_flags &= ~DR_METAONLY;
+ return;
+ }
+
switch (dp->di_mode & S_IFMT) {
case 0:
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);
}
convert_dir(struct ext2_dir_entry *dirent, int offset, int blocksize, char *buf, void *private)
{
struct convert_dir_context *p;
- struct olddirect *dp;
+ struct direct *dp;
int reclen;
p = (struct convert_dir_context *)private;
reclen = EXT2_DIR_REC_LEN((dirent->name_len & 0xFF) + 1);
if (((p->offset + reclen - 1) / p->bs) != (p->offset / p->bs)) {
- dp = (struct olddirect *)(p->buf + p->prev_offset);
+ dp = (struct direct *)(p->buf + p->prev_offset);
dp->d_reclen += p->bs - (p->offset % p->bs);
p->offset += p->bs - (p->offset % p->bs);
}
- dp = (struct olddirect *)(p->buf + p->offset);
+ dp = (struct direct *)(p->buf + p->offset);
dp->d_ino = dirent->inode;
dp->d_reclen = reclen;
dp->d_namlen = dirent->name_len & 0xFF;
{
fsizeT size;
char buf[TP_BSIZE];
- struct old_bsd_inode obi;
+ struct new_bsd_inode nbi;
struct convert_dir_context cdc;
errcode_t retval;
struct ext2_dir_entry *de;
dir_size = cdc.offset;
#ifdef __linux__
- memset(&obi, 0, sizeof(obi));
- obi.di_mode = dp->di_mode;
- obi.di_uid = dp->di_uid;
- obi.di_gid = dp->di_gid;
- obi.di_qsize.v = dir_size; /* (u_quad_t)dp->di_size; */
- obi.di_atime = dp->di_atime;
- obi.di_mtime = dp->di_mtime;
- obi.di_ctime = dp->di_ctime;
- obi.di_nlink = dp->di_nlink;
- obi.di_blocks = dp->di_blocks;
- obi.di_flags = dp->di_flags;
- obi.di_gen = dp->di_gen;
- memmove(&obi.di_db, &dp->di_db, (NDADDR + NIADDR) * sizeof(daddr_t));
+ memset(&nbi, 0, sizeof(nbi));
+ nbi.di_mode = dp->di_mode;
+ nbi.di_nlink = dp->di_nlink;
+ nbi.di_ouid = dp->di_uid;
+ nbi.di_ogid = dp->di_gid;
+ nbi.di_size = dir_size; /* (u_quad_t)dp->di_size; */
+ nbi.di_atime.tv_sec = dp->di_atime;
+ nbi.di_mtime.tv_sec = dp->di_mtime;
+ nbi.di_ctime.tv_sec = dp->di_ctime;
+ memmove(&nbi.di_db, &dp->di_db, (NDADDR + NIADDR) * sizeof(daddr_t));
+ nbi.di_flags = dp->di_flags;
+ nbi.di_blocks = dp->di_blocks;
+ nbi.di_gen = dp->di_gen;
+ nbi.di_uid = (((int32_t)dp->di_uidhigh) << 16) | dp->di_uid;
+ nbi.di_gid = (((int32_t)dp->di_gidhigh) << 16) | dp->di_gid;
if (dp->di_file_acl)
warn("ACLs in inode #%ld won't be dumped", (long)ino);
- memmove(&spcl.c_dinode, &obi, sizeof(obi));
+ memmove(&spcl.c_dinode, &nbi, sizeof(nbi));
#else /* __linux__ */
spcl.c_dinode = *dp;
#endif /* __linux__ */
void
blksout(daddr_t *blkp, int frags, dump_ino_t ino)
{
- register daddr_t *bp;
+ daddr_t *bp;
int i, j, count, blks, tbperdb;
blks = howmany(frags * sblock->fs_fsize, TP_BSIZE);
void
dumpmap(char *map, int type, dump_ino_t ino)
{
- register int i;
+ int i;
char *cp;
spcl.c_type = type;
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)
{
int cnt, i;
- extern int errno;
loop:
#ifdef __linux__
goto loop;
}
if (cnt == -1)
- msg("read error from %s: %s: [block %d]: count=%d\n",
- disk, strerror(errno), blkno, size);
+ msg("read error from %s: %s: [block %d, ext2blk %d]: count=%d\n",
+ disk, strerror(errno), blkno,
+ dbtofsb(sblock, blkno), size);
else
- msg("short read error from %s: [block %d]: count=%d, got=%d\n",
- disk, blkno, size, cnt);
- if (++breaderrors > BREADEMAX) {
+ msg("short read error from %s: [block %d, ext2blk %d]: count=%d, got=%d\n",
+ disk, blkno, dbtofsb(sblock, blkno), size, cnt);
+ 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?")){
if ((cnt = read(diskfd, buf, (int)dev_bsize)) == dev_bsize)
continue;
if (cnt == -1) {
- msg("read error from %s: %s: [sector %d]: count=%d\n",
- disk, strerror(errno), blkno, dev_bsize);
+ msg("read error from %s: %s: [sector %d, ext2blk %d]: count=%d\n",
+ disk, strerror(errno), blkno,
+ dbtofsb(sblock, blkno), dev_bsize);
continue;
}
- msg("short read error from %s: [sector %d]: count=%d, got=%d\n",
- disk, blkno, dev_bsize, cnt);
+ msg("short read error from %s: [sector %d, ext2blk %d]: count=%d, got=%d\n",
+ disk, blkno, dbtofsb(sblock, blkno), dev_bsize, cnt);
}
}
git.wh0rd.org / dump.git / blobdiff