#include <sys/types.h>
#include <sys/stat.h>
-#include "et/com_err.h"
-#include "ss/ss.h"
#include "debugfs.h"
#include "uuid/uuid.h"
#include "e2p/e2p.h"
#include "../version.h"
#include "jfs_user.h"
-extern ss_request_table debug_cmds;
+#ifndef BUFSIZ
+#define BUFSIZ 8192
+#endif
+
+/* 64KiB is the minimium blksize to best minimize system call overhead. */
+#ifndef IO_BUFSIZE
+#define IO_BUFSIZE 64*1024
+#endif
+
+/* Block size for `st_blocks' */
+#ifndef S_BLKSIZE
+#define S_BLKSIZE 512
+#endif
+
ss_request_table *extra_cmds;
const char *debug_prog_name;
+int sci_idx;
ext2_filsys current_fs = NULL;
ext2_ino_t root, cwd;
return;
break;
case 's':
- superblock = parse_ulong(optarg, argv[0],
- "superblock number", &err);
+ err = strtoblk(argv[0], optarg,
+ "superblock block number", &superblock);
if (err)
return;
break;
return;
print_usage:
- fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] [-c] "
+ fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
+ "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
#ifndef READ_ONLY
"[-w] "
#endif
struct ext2_super_block param;
errcode_t retval;
int err;
+ blk64_t blocks;
if (common_args_process(argc, argv, 3, 3, "initialize",
- "<device> <blocksize>", CHECK_FS_NOTOPEN))
+ "<device> <blocks>", CHECK_FS_NOTOPEN))
return;
memset(¶m, 0, sizeof(struct ext2_super_block));
- ext2fs_blocks_count_set(¶m, parse_ulong(argv[2], argv[0],
- "blocks count", &err));
+ err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
if (err)
return;
+ ext2fs_blocks_count_set(¶m, blocks);
retval = ext2fs_initialize(argv[1], 0, ¶m,
unix_io_manager, ¤t_fs);
if (retval) {
inode->i_extra_isize);
return;
}
- storage_size = EXT2_INODE_SIZE(current_fs->super) -
- EXT2_GOOD_OLD_INODE_SIZE -
- inode->i_extra_isize;
- magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
- inode->i_extra_isize);
- if (*magic == EXT2_EXT_ATTR_MAGIC) {
- fprintf(out, "Extended attributes stored in inode body: \n");
- end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
- start = (char *) magic + sizeof(__u32);
- entry = (struct ext2_ext_attr_entry *) start;
- while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
- struct ext2_ext_attr_entry *next =
- EXT2_EXT_ATTR_NEXT(entry);
- if (entry->e_value_size > storage_size ||
- (char *) next >= end) {
- fprintf(out, "invalid EA entry in inode\n");
- return;
- }
- fprintf(out, " ");
- dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
- entry->e_name_len);
- fprintf(out, " = \"");
- dump_xattr_string(out, start + entry->e_value_offs,
- entry->e_value_size);
- fprintf(out, "\" (%u)\n", entry->e_value_size);
- entry = next;
- }
- }
+}
+
+/* Dump extended attributes */
+static int dump_attr(char *name, char *value, size_t value_len, void *data)
+{
+ FILE *out = data;
+
+ fprintf(out, " ");
+ dump_xattr_string(out, name, strlen(name));
+ fprintf(out, " = \"");
+ dump_xattr_string(out, value, value_len);
+ fprintf(out, "\" (%zu)\n", value_len);
+
+ return 0;
+}
+
+static void dump_inode_attributes(FILE *out, ext2_ino_t ino)
+{
+ struct ext2_xattr_handle *h;
+ errcode_t err;
+
+ err = ext2fs_xattrs_open(current_fs, ino, &h);
+ if (err)
+ return;
+
+ err = ext2fs_xattrs_read(h);
+ if (err)
+ goto out;
+
+ if (ext2fs_xattrs_count(h) == 0)
+ goto out;
+
+ fprintf(out, "Extended attributes:\n");
+ err = ext2fs_xattrs_iterate(h, dump_attr, out);
+ if (err)
+ goto out;
+
+out:
+ err = ext2fs_xattrs_close(&h);
}
static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
internal_dump_inode_extra(out, prefix, inode_num,
(struct ext2_inode_large *) inode);
+ dump_inode_attributes(out, inode_num);
if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
current_fs->super->s_feature_ro_compat &
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
com_err(argv[0], 0, "Warning: inode already clear");
while (len-- > 0)
- ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode);
+ ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
ext2fs_mark_ib_dirty(current_fs);
}
}
#ifndef READ_ONLY
-static errcode_t copy_file(int fd, ext2_ino_t newfile)
+static errcode_t copy_file(int fd, ext2_ino_t newfile, int bufsize, int make_holes)
{
ext2_file_t e2_file;
errcode_t retval;
int got;
unsigned int written;
- char buf[8192];
+ char *buf;
char *ptr;
+ char *zero_buf;
+ int cmp;
retval = ext2fs_file_open(current_fs, newfile,
EXT2_FILE_WRITE, &e2_file);
if (retval)
return retval;
+ retval = ext2fs_get_mem(bufsize, &buf);
+ if (retval) {
+ com_err("copy_file", retval, "can't allocate buffer\n");
+ return retval;
+ }
+
+ /* This is used for checking whether the whole block is zero */
+ retval = ext2fs_get_memzero(bufsize, &zero_buf);
+ if (retval) {
+ com_err("copy_file", retval, "can't allocate buffer\n");
+ ext2fs_free_mem(&buf);
+ return retval;
+ }
+
while (1) {
- got = read(fd, buf, sizeof(buf));
+ got = read(fd, buf, bufsize);
if (got == 0)
break;
if (got < 0) {
goto fail;
}
ptr = buf;
+
+ /* Sparse copy */
+ if (make_holes) {
+ /* Check whether all is zero */
+ cmp = memcmp(ptr, zero_buf, got);
+ if (cmp == 0) {
+ /* The whole block is zero, make a hole */
+ retval = ext2fs_file_lseek(e2_file, got, EXT2_SEEK_CUR, NULL);
+ if (retval)
+ goto fail;
+ got = 0;
+ }
+ }
+
+ /* Normal copy */
while (got > 0) {
retval = ext2fs_file_write(e2_file, ptr,
got, &written);
ptr += written;
}
}
+ ext2fs_free_mem(&buf);
+ ext2fs_free_mem(&zero_buf);
retval = ext2fs_file_close(e2_file);
return retval;
fail:
+ ext2fs_free_mem(&buf);
+ ext2fs_free_mem(&zero_buf);
(void) ext2fs_file_close(e2_file);
return retval;
}
ext2_ino_t newfile;
errcode_t retval;
struct ext2_inode inode;
+ int bufsize = IO_BUFSIZE;
+ int make_holes = 0;
if (common_args_process(argc, argv, 3, 3, "write",
"<native file> <new file>", CHECK_FS_RW))
inode.i_links_count = 1;
inode.i_size = statbuf.st_size;
if (current_fs->super->s_feature_incompat &
- EXT3_FEATURE_INCOMPAT_EXTENTS)
+ EXT3_FEATURE_INCOMPAT_EXTENTS) {
+ int i;
+ struct ext3_extent_header *eh;
+
+ eh = (struct ext3_extent_header *) &inode.i_block[0];
+ eh->eh_depth = 0;
+ eh->eh_entries = 0;
+ eh->eh_magic = ext2fs_cpu_to_le16(EXT3_EXT_MAGIC);
+ i = (sizeof(inode.i_block) - sizeof(*eh)) /
+ sizeof(struct ext3_extent);
+ eh->eh_max = ext2fs_cpu_to_le16(i);
inode.i_flags |= EXT4_EXTENTS_FL;
+ }
if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
close(fd);
return;
}
if (LINUX_S_ISREG(inode.i_mode)) {
- retval = copy_file(fd, newfile);
+ if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) {
+ make_holes = 1;
+ /*
+ * Use I/O blocksize as buffer size when
+ * copying sparse files.
+ */
+ bufsize = statbuf.st_blksize;
+ }
+ retval = copy_file(fd, newfile, bufsize, make_holes);
if (retval)
com_err("copy_file", retval, 0);
}
}
if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
com_err(argv[0], 0, "Warning: inode already set");
- ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
- ext2fs_mark_ib_dirty(current_fs);
+ ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
memset(&inode, 0, sizeof(inode));
inode.i_mode = mode;
inode.i_atime = inode.i_ctime = inode.i_mtime =
inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
if (debugfs_write_inode(inode, &inode_buf, 0))
return;
- if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
- return;
-
- ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
- release_blocks_proc, NULL);
+ if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
+ ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
+ NULL, release_blocks_proc, NULL);
+ }
printf("\n");
ext2fs_inode_alloc_stats2(current_fs, inode, -1,
LINUX_S_ISDIR(inode_buf.i_mode));
if (dirent->inode == 0)
return 0;
- if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
+ if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
return 0;
- if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
+ if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
(dirent->name[1] == '.')) {
rds->parent = dirent->inode;
return 0;
ino = string_to_inode(argv[1]);
if (!ino)
return;
- blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
+ err = strtoblk(argv[0], argv[2], "logical block", &blk);
+ if (err)
+ return;
errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
if (errcode) {
- com_err("argv[0]", errcode,
+ com_err(argv[0], errcode,
"while mapping logical block %llu\n", blk);
return;
}
ino = string_to_inode(argv[1]);
if (!ino)
return;
- start = parse_ulong(argv[2], argv[0], "logical_block", &err);
- if (argc == 4)
- end = parse_ulong(argv[3], argv[0], "logical_block", &err);
- else
+ err = strtoblk(argv[0], argv[2], "logical block", &start);
+ if (err)
+ return;
+ if (argc == 4) {
+ err = strtoblk(argv[0], argv[3], "logical block", &end);
+ if (err)
+ return;
+ } else
end = ~0;
errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
}
#endif /* READ_ONLY */
+void do_symlink(int argc, char *argv[])
+{
+ char *cp;
+ ext2_ino_t parent;
+ char *name, *target;
+ errcode_t retval;
+
+ if (common_args_process(argc, argv, 3, 3, "symlink",
+ "<filename> <target>", CHECK_FS_RW))
+ return;
+
+ cp = strrchr(argv[1], '/');
+ if (cp) {
+ *cp = 0;
+ parent = string_to_inode(argv[1]);
+ if (!parent) {
+ com_err(argv[1], ENOENT, 0);
+ return;
+ }
+ name = cp+1;
+ } else {
+ parent = cwd;
+ name = argv[1];
+ }
+ target = argv[2];
+
+try_again:
+ retval = ext2fs_symlink(current_fs, parent, 0, name, target);
+ if (retval == EXT2_ET_DIR_NO_SPACE) {
+ retval = ext2fs_expand_dir(current_fs, parent);
+ if (retval) {
+ com_err(argv[0], retval, "while expanding directory");
+ return;
+ }
+ goto try_again;
+ }
+ if (retval) {
+ com_err("ext2fs_symlink", retval, 0);
+ return;
+ }
+
+}
+
void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
{
#if CONFIG_MMP
return;
sb = current_fs->super;
- if (sb->s_mmp_block <= sb->s_first_data_block ||
- sb->s_mmp_block >= ext2fs_blocks_count(sb)) {
- com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n");
- return;
- }
if (current_fs->mmp_buf == NULL) {
retval = ext2fs_get_mem(current_fs->blocksize,
#endif
}
-static int source_file(const char *cmd_file, int sci_idx)
+static int source_file(const char *cmd_file, int ss_idx)
{
FILE *f;
- char buf[256];
+ char buf[BUFSIZ];
char *cp;
int exit_status = 0;
int retval;
if (cp)
*cp = 0;
printf("debugfs: %s\n", buf);
- retval = ss_execute_line(sci_idx, buf);
+ retval = ss_execute_line(ss_idx, buf);
if (retval) {
- ss_perror(sci_idx, retval, buf);
+ ss_perror(ss_idx, retval, buf);
exit_status++;
}
}
int main(int argc, char **argv)
{
int retval;
- int sci_idx;
const char *usage =
"Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
"[-R request] [-V] ["
"block size", 0);
break;
case 's':
- superblock = parse_ulong(optarg, argv[0],
- "superblock number", 0);
+ retval = strtoblk(argv[0], optarg,
+ "superblock block number",
+ &superblock);
+ if (retval)
+ return 1;
break;
case 'c':
catastrophic = 1;