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e2fsprogs
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e2fsprogs/misc/create_inode.h

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mke2fs: add the ability to copy files from a given directory We will add a -d option which will be used for adding the files from a given directory to the filesystem, it is similiar to genext2fs, but genext2fs doesn't fully support ext4. * We already have the basic operations in debugfs: - Copy regular file - Create directory - Create symlink - Create special file We will move these operations into create_inode.h and create_inode.c, then let both mke2fs and debugfs use them. * What we need to do are: - Copy the given directory recursively, this will be done by the populate_fs() - Set the owner, mode and other informations - Handle the hard links TODO: - The libext2fs can't create the socket file (S_IFSOCK), do we have a plan to support it ? Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-03-06 20:00:23 +04:00
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "et/com_err.h"
#include "e2p/e2p.h"
#include "ext2fs/ext2fs.h"
#include "nls-enable.h"
misc/create_inode.c: handle hardlinks Create the inode and save the native inode number when we meet the hard link (st_nlink > 1) at the first time, use ext2fs_link() to link the name to the target inode number when we meet the same native inode number again. This algorithm is referred this from the genext2fs. Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-03-06 20:00:25 +04:00
struct hdlink_s
{
ext2_ino_t src_ino;
ext2_ino_t dst_ino;
};
struct hdlinks_s
{
int count;
struct hdlink_s *hdl;
};
struct hdlinks_s hdlinks;
mke2fs: add the ability to copy files from a given directory We will add a -d option which will be used for adding the files from a given directory to the filesystem, it is similiar to genext2fs, but genext2fs doesn't fully support ext4. * We already have the basic operations in debugfs: - Copy regular file - Create directory - Create symlink - Create special file We will move these operations into create_inode.h and create_inode.c, then let both mke2fs and debugfs use them. * What we need to do are: - Copy the given directory recursively, this will be done by the populate_fs() - Set the owner, mode and other informations - Handle the hard links TODO: - The libext2fs can't create the socket file (S_IFSOCK), do we have a plan to support it ? Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-03-06 20:00:23 +04:00
ext2_filsys current_fs;
ext2_ino_t root;
misc/create_inode.c: handle hardlinks Create the inode and save the native inode number when we meet the hard link (st_nlink > 1) at the first time, use ext2fs_link() to link the name to the target inode number when we meet the same native inode number again. This algorithm is referred this from the genext2fs. Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-03-06 20:00:25 +04:00
/* For saving the hard links */
#define HDLINK_CNT 4
extern int hdlink_cnt;
mke2fs: add the ability to copy files from a given directory We will add a -d option which will be used for adding the files from a given directory to the filesystem, it is similiar to genext2fs, but genext2fs doesn't fully support ext4. * We already have the basic operations in debugfs: - Copy regular file - Create directory - Create symlink - Create special file We will move these operations into create_inode.h and create_inode.c, then let both mke2fs and debugfs use them. * What we need to do are: - Copy the given directory recursively, this will be done by the populate_fs() - Set the owner, mode and other informations - Handle the hard links TODO: - The libext2fs can't create the socket file (S_IFSOCK), do we have a plan to support it ? Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2014-03-06 20:00:23 +04:00
/* For populating the filesystem */
extern errcode_t populate_fs(ext2_ino_t parent_ino, const char *source_dir);
extern errcode_t do_mknod_internal(ext2_ino_t cwd, const char *name, struct stat *st);
extern errcode_t do_symlink_internal(ext2_ino_t cwd, const char *name, char *target);
extern errcode_t do_mkdir_internal(ext2_ino_t cwd, const char *name, struct stat *st);
extern errcode_t do_write_internal(ext2_ino_t cwd, const char *src, const char *dest);