Initial QSfera import

Server/vendor/github.com/ceph/go-ceph/cephfs/conn_nautilus.go

@@ -0,0 +1,30 @@
+package cephfs
+
+/*
+#cgo LDFLAGS: -lcephfs
+#cgo CPPFLAGS: -D_FILE_OFFSET_BITS=64
+#include <cephfs/libcephfs.h>
+*/
+import "C"
+
+// Some general connectivity and mounting functions are new in
+// Ceph Nautilus.
+
+// GetFsCid returns the cluster ID for a mounted ceph file system.
+// If the object does not refer to a mounted file system, an error
+// will be returned.
+//
+// Note:
+//
+//	Only supported in Ceph Nautilus and newer.
+//
+// Implements:
+//
+//	int64_t ceph_get_fs_cid(struct ceph_mount_info *cmount);
+func (mount *MountInfo) GetFsCid() (int64, error) {
+	ret := C.ceph_get_fs_cid(mount.mount)
+	if ret < 0 {
+		return 0, getError(C.int(ret))
+	}
+	return int64(ret), nil
+}