* Covardly copy the nanddump() function from the mtd-utils to fix dump functionality

- The new function works like the old rf_extract one, no parameters has
  changed.
- Now a complete dump/restore will be possible.
- Check for badblocks while copying data
- Shows information about the partition

* Better use of query_error_message() for debugging

src/mtd/jffs2-user.h

@@ -0,0 +1,82 @@
+/*
+ * $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $
+ *
+ * JFFS2 definitions for use in user space only
+ */
+
+#ifndef __JFFS2_USER_H__
+#define __JFFS2_USER_H__
+
+/* This file is blessed for inclusion by userspace */
+#include <linux/jffs2.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#undef cpu_to_je16
+#undef cpu_to_je32
+#undef cpu_to_jemode
+#undef je16_to_cpu
+#undef je32_to_cpu
+#undef jemode_to_cpu
+
+extern int target_endian;
+
+#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
+#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
+
+#define cpu_to_je16(x) ((jint16_t){t16(x)})
+#define cpu_to_je32(x) ((jint32_t){t32(x)})
+#define cpu_to_jemode(x) ((jmode_t){t32(x)})
+
+#define je16_to_cpu(x) (t16((x).v16))
+#define je32_to_cpu(x) (t32((x).v32))
+#define jemode_to_cpu(x) (t32((x).m))
+
+#define le16_to_cpu(x)	(__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_16(x))
+#define le32_to_cpu(x)	(__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_32(x))
+#define cpu_to_le16(x)	(__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_16(x))
+#define cpu_to_le32(x)	(__BYTE_ORDER==__LITTLE_ENDIAN ? (x) : bswap_32(x))
+
+/* XATTR/POSIX-ACL related definition */
+/* Namespaces copied from xattr.h and posix_acl_xattr.h */
+#define XATTR_USER_PREFIX		"user."
+#define XATTR_USER_PREFIX_LEN		(sizeof (XATTR_USER_PREFIX) - 1)
+#define XATTR_SECURITY_PREFIX		"security."
+#define XATTR_SECURITY_PREFIX_LEN	(sizeof (XATTR_SECURITY_PREFIX) - 1)
+#define POSIX_ACL_XATTR_ACCESS		"system.posix_acl_access"
+#define POSIX_ACL_XATTR_ACCESS_LEN	(sizeof (POSIX_ACL_XATTR_ACCESS) - 1)
+#define POSIX_ACL_XATTR_DEFAULT		"system.posix_acl_default"
+#define POSIX_ACL_XATTR_DEFAULT_LEN	(sizeof (POSIX_ACL_XATTR_DEFAULT) - 1)
+#define XATTR_TRUSTED_PREFIX		"trusted."
+#define XATTR_TRUSTED_PREFIX_LEN	(sizeof (XATTR_TRUSTED_PREFIX) - 1)
+
+struct jffs2_acl_entry {
+	jint16_t	e_tag;
+	jint16_t	e_perm;
+	jint32_t	e_id;
+};
+
+struct jffs2_acl_entry_short {
+	jint16_t	e_tag;
+	jint16_t	e_perm;
+};
+
+struct jffs2_acl_header {
+	jint32_t	a_version;
+};
+
+/* copied from include/linux/posix_acl_xattr.h */
+#define POSIX_ACL_XATTR_VERSION 0x0002
+
+struct posix_acl_xattr_entry {
+	uint16_t		e_tag;
+	uint16_t		e_perm;
+	uint32_t		e_id;
+};
+
+struct posix_acl_xattr_header {
+	uint32_t			a_version;
+	struct posix_acl_xattr_entry	a_entries[0];
+};
+
+#endif /* __JFFS2_USER_H__ */