Move NFS mount code from util-linux to nfs-utils - part 1

[nfs-utils.git] / utils / mount / mount_constants.h

diff --git a/utils/mount/mount_constants.h b/utils/mount/mount_constants.h
new file mode 100644 (file)
index 0000000..19a7bf5
--- /dev/null
+++ b/utils/mount/mount_constants.h
@@ -0,0 +1,53 @@
+#ifndef _NFS_MOUNT_CONSTANTS_H
+#define _NFS_MOUNT_CONSTANTS_H
+
+#ifndef MS_DIRSYNC
+#define MS_DIRSYNC     128     /* Directory modifications are synchronous */
+#endif
+
+#ifndef MS_ACTION_MASK
+#define        MS_ACTION_MASK  0x380
+/* Remount, but new filesystem may be different from old. Atomic
+   (i.e. there is no interval when nothing is mounted at the mountpoint).
+   If new fs differs from the old one and old is busy - -EBUSY. */
+#define        MS_REPLACE      0x080   /* 128 */
+/* After, Before: as soon as we get unions these will add a new member
+   in the end or beginning of the chain. Fail if there is a stack
+   on the mountpoint. */
+#define        MS_AFTER        0x100   /* 256 */
+#define        MS_BEFORE       0x180
+/* Over: if nothing mounted on a mountpoint - same as if none of these
+flags had been set; if we have a union with more than one element - fail;
+if we have a stack or plain mount - mount atop of it, forming a stack. */
+#define        MS_OVER         0x200   /* 512 */
+#endif
+#ifndef MS_NOATIME
+#define MS_NOATIME     0x400   /* 1024: Do not update access times. */
+#endif
+#ifndef MS_NODIRATIME
+#define MS_NODIRATIME   0x800  /* 2048: Don't update directory access times */
+#endif
+#ifndef MS_BIND
+#define        MS_BIND         0x1000  /* 4096: Mount existing tree also elsewhere */
+#endif
+#ifndef MS_MOVE
+#define MS_MOVE                0x2000  /* 8192: Atomically move tree */
+#endif
+#ifndef MS_REC
+#define MS_REC         0x4000  /* 16384: Recursive loopback */
+#endif
+#ifndef MS_VERBOSE
+#define MS_VERBOSE     0x8000  /* 32768 */
+#endif
+/*
+ * Magic mount flag number. Had to be or-ed to the flag values.
+ */
+#ifndef MS_MGC_VAL
+#define MS_MGC_VAL 0xC0ED0000  /* magic flag number to indicate "new" flags */
+#endif
+#ifndef MS_MGC_MSK
+#define MS_MGC_MSK 0xffff0000  /* magic flag number mask */
+#endif
+
+#endif /* _NFS_MOUNT_CONSTANTS_H */
+