/* Flags for the `flags' field of the struct resource_entry structure. */
-/* ??? */
+/* I haven't seen this flag used in any of the WIMs I have examined. I assume
+ * it means that there are no references to the stream, so the space is free.
+ * However, even after deleting files from a WIM mounted with `imagex.exe
+ * /mountrw', I could not see this flag being used. Either way, we don't
+ * actually use this flag for anything. */
#define WIM_RESHDR_FLAG_FREE 0x01
-/* Indicates that a file resource is a metadata resource. */
+/* Indicates that the stream is a metadata resource for a WIM image. */
#define WIM_RESHDR_FLAG_METADATA 0x02
-/* Indicates that a file resource is compressed. */
+/* Indicates that the stream is compressed. */
#define WIM_RESHDR_FLAG_COMPRESSED 0x04
-/* ??? */
+/* I haven't seen this flag used in any of the WIMs I have examined. Perhaps it
+ * means that a stream could possibly be split among multiple split WIM parts.
+ * However, `imagex.exe /split' does not seem to create any WIMs like this.
+ * Either way, we don't actually use this flag for anything. */
#define WIM_RESHDR_FLAG_SPANNED 0x08
//u8 unused[WIM_UNUSED_LEN];
};
-/* Flags for the `flags' field of the struct wim_header. */
-
+/* Flags for the `flags' field of the struct wim_header: */
/* Reserved for future use by M$ */
#define WIM_HDR_FLAG_RESERVED 0x00000001
/* Files and metadata in the WIM are compressed. */
#define WIM_HDR_FLAG_COMPRESSION 0x00000002
-/* WIM is read-only. */
+/* WIM is read-only (we ignore this). */
#define WIM_HDR_FLAG_READONLY 0x00000004
/* Resource data specified by images in this WIM may be contained in a different
- * WIM */
+ * WIM. Or in other words, this WIM is part of a split WIM. */
#define WIM_HDR_FLAG_SPANNED 0x00000008
-/* The WIM contains resources only; no filesystem metadata. */
+/* The WIM contains resources only; no filesystem metadata. We ignore this
+ * flag, as we look for file resources in all the WIMs anyway. */
#define WIM_HDR_FLAG_RESOURCE_ONLY 0x00000010
-/* The WIM contains metadata only. */
+/* The WIM contains metadata only. We ignore this flag. Note that all the
+ * metadata resources for a split WIM should be in the first part. */
#define WIM_HDR_FLAG_METADATA_ONLY 0x00000020
-/* Lock field to prevent multiple writers from writing the WIM concurrently. */
+/* Lock field to prevent multiple writers from writing the WIM concurrently. We
+ * ignore this flag. */
#define WIM_HDR_FLAG_WRITE_IN_PROGRESS 0x00000040
-/* Reparse point fixup ??? */
+/* Reparse point fixup ???
+ * This has something to do with absolute targets of reparse points / symbolic
+ * links but I don't know what. We ignore this flag. */
#define WIM_HDR_FLAG_RP_FIX 0x00000080
-/* Unknown compression type */
+/* Unused, reserved flag for another compression type */
#define WIM_HDR_FLAG_COMPRESS_RESERVED 0x00010000
/* Resources within the WIM are compressed using "XPRESS" compression, which is
* a LZ77-based algorithm. */
#define WIM_HDR_FLAG_COMPRESS_LZX 0x00040000
+#ifdef WITH_NTFS_3G
typedef struct _ntfs_volume ntfs_volume;
+#endif
/* Structure for security data. Each image in the WIM file has its own security
* data. */