e2fsprogs: 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 ?

[YOCTO #4083]

(From OE-Core rev: f050c510b070d919d50e491476e83f2b0ae2b7b2)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/e2fsprogs/e2fsprogs/0001-mke2fs-add-the-ability-to-copy-files-from-a-given-di.patch

@@ -0,0 +1,98 @@
+From c98fec004f077e566b9dfa20b25e3b86cb462a2e Mon Sep 17 00:00:00 2001
+From: Robert Yang <liezhi.yang@windriver.com>
+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 <liezhi.yang@windriver.com>
+Reviewed-by: Darren Hart <dvhart@linux.intel.com>
+---
+ 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 <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"
++
++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
+