1 files changed, 87 insertions, 0 deletions

diff --git a/fuse/include/cuse_lowlevel.h b/fuse/include/cuse_lowlevel.h
new file mode 100644
index 000000000..d628eac4e
--- /dev/null
+++ b/fuse/include/cuse_lowlevel.h
@@ -0,0 +1,87 @@
+/*
+  CUSE: Character device in Userspace
+  Copyright (C) 2008-2009  SUSE Linux Products GmbH
+  Copyright (C) 2008-2009  Tejun Heo <tj@kernel.org>
+
+  This program can be distributed under the terms of the GNU LGPLv2.
+  See the file COPYING.LIB.
+
+  Read example/cusexmp.c for usages.
+*/
+
+#ifndef _CUSE_LOWLEVEL_H_
+#define _CUSE_LOWLEVEL_H_
+
+#ifndef FUSE_USE_VERSION
+#define FUSE_USE_VERSION 29
+#endif
+
+#include "fuse_lowlevel.h"
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CUSE_UNRESTRICTED_IOCTL		(1 << 0) /* use unrestricted ioctl */
+
+struct fuse_session;
+
+struct cuse_info {
+	unsigned	dev_major;
+	unsigned	dev_minor;
+	unsigned	dev_info_argc;
+	const char	**dev_info_argv;
+	unsigned	flags;
+};
+
+/*
+ * Most ops behave almost identically to the matching fuse_lowlevel
+ * ops except that they don't take @ino.
+ *
+ * init_done	: called after initialization is complete
+ * read/write	: always direct IO, simultaneous operations allowed
+ * ioctl	: might be in unrestricted mode depending on ci->flags
+ */
+struct cuse_lowlevel_ops {
+	void (*init) (void *userdata, struct fuse_conn_info *conn);
+	void (*init_done) (void *userdata);
+	void (*destroy) (void *userdata);
+	void (*open) (fuse_req_t req, struct fuse_file_info *fi);
+	void (*read) (fuse_req_t req, size_t size, off64_t off,
+		      struct fuse_file_info *fi);
+	void (*write) (fuse_req_t req, const char *buf, size_t size, off64_t off,
+		       struct fuse_file_info *fi);
+	void (*flush) (fuse_req_t req, struct fuse_file_info *fi);
+	void (*release) (fuse_req_t req, struct fuse_file_info *fi);
+	void (*fsync) (fuse_req_t req, int datasync, struct fuse_file_info *fi);
+	void (*ioctl) (fuse_req_t req, int cmd, void *arg,
+		       struct fuse_file_info *fi, unsigned int flags,
+		       const void *in_buf, size_t in_bufsz, size_t out_bufsz);
+	void (*poll) (fuse_req_t req, struct fuse_file_info *fi,
+		      struct fuse_pollhandle *ph);
+};
+
+struct fuse_session *cuse_lowlevel_new(struct fuse_args *args,
+				       const struct cuse_info *ci,
+				       const struct cuse_lowlevel_ops *clop,
+				       void *userdata);
+
+struct fuse_session *cuse_lowlevel_setup(int argc, char *argv[],
+					 const struct cuse_info *ci,
+					 const struct cuse_lowlevel_ops *clop,
+					 int *multithreaded, void *userdata);
+
+void cuse_lowlevel_teardown(struct fuse_session *se);
+
+int cuse_lowlevel_main(int argc, char *argv[], const struct cuse_info *ci,
+		       const struct cuse_lowlevel_ops *clop, void *userdata);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CUSE_LOWLEVEL_H_ */