From c98fec004f077e566b9dfa20b25e3b86cb462a2e Mon Sep 17 00:00:00 2001 From: Robert Yang Date: Tue, 24 Dec 2013 01:41:08 -0500 Subject: [PATCH 01/11] 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 ? Upstream-Status: Backport Signed-off-by: Robert Yang Reviewed-by: Darren Hart --- misc/create_inode.c | 26 ++++++++++++++++++++++++++ misc/create_inode.h | 17 +++++++++++++++++ 2 files changed, 43 insertions(+) create mode 100644 misc/create_inode.c create mode 100644 misc/create_inode.h diff --git a/misc/create_inode.c b/misc/create_inode.c new file mode 100644 index 0000000..46aaa60 --- /dev/null +++ b/misc/create_inode.c @@ -0,0 +1,26 @@ +#include "create_inode.h" + +/* Make a special file which is block, character and fifo */ +errcode_t do_mknod_internal(ext2_ino_t cwd, const char *name, struct stat *st) +{ +} + +/* Make a symlink name -> target */ +errcode_t do_symlink_internal(ext2_ino_t cwd, const char *name, char *target) +{ +} + +/* Make a directory in the fs */ +errcode_t do_mkdir_internal(ext2_ino_t cwd, const char *name, struct stat *st) +{ +} + +/* Copy the native file to the fs */ +errcode_t do_write_internal(ext2_ino_t cwd, const char *src, const char *dest) +{ +} + +/* Copy files from source_dir to fs */ +errcode_t populate_fs(ext2_ino_t parent_ino, const char *source_dir) +{ +} diff --git a/misc/create_inode.h b/misc/create_inode.h new file mode 100644 index 0000000..9fc97fa --- /dev/null +++ b/misc/create_inode.h @@ -0,0 +1,17 @@ +#include +#include +#include +#include "et/com_err.h" +#include "e2p/e2p.h" +#include "ext2fs/ext2fs.h" +#include "nls-enable.h" + +ext2_filsys current_fs; +ext2_ino_t root; + +/* 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); -- 1.7.10.4