1 files changed, 97 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
new file mode 100644
index 000000000..700a1e6c0
--- /dev/null
+++ b/include/linux/sunrpc/xprtsock.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *  linux/include/linux/sunrpc/xprtsock.h
+ *
+ *  Declarations for the RPC transport socket provider.
+ */
+
+#ifndef _LINUX_SUNRPC_XPRTSOCK_H
+#define _LINUX_SUNRPC_XPRTSOCK_H
+
+int		init_socket_xprt(void);
+void		cleanup_socket_xprt(void);
+
+#define RPC_MIN_RESVPORT	(1U)
+#define RPC_MAX_RESVPORT	(65535U)
+#define RPC_DEF_MIN_RESVPORT	(665U)
+#define RPC_DEF_MAX_RESVPORT	(1023U)
+
+struct sock_xprt {
+	struct rpc_xprt		xprt;
+
+	/*
+	 * Network layer
+	 */
+	struct socket *		sock;
+	struct sock *		inet;
+	struct file *		file;
+
+	/*
+	 * State of TCP reply receive
+	 */
+	struct {
+		struct {
+			__be32	fraghdr,
+				xid,
+				calldir;
+		} __attribute__((packed));
+
+		u32		offset,
+				len;
+
+		unsigned long	copied;
+	} recv;
+
+	/*
+	 * State of TCP transmit queue
+	 */
+	struct {
+		u32		offset;
+	} xmit;
+
+	/*
+	 * Connection of transports
+	 */
+	unsigned long		sock_state;
+	struct delayed_work	connect_worker;
+	struct work_struct	error_worker;
+	struct work_struct	recv_worker;
+	struct mutex		recv_mutex;
+	struct completion	handshake_done;
+	struct sockaddr_storage	srcaddr;
+	unsigned short		srcport;
+	int			xprt_err;
+	struct rpc_clnt		*clnt;
+
+	/*
+	 * UDP socket buffer size parameters
+	 */
+	size_t			rcvsize,
+				sndsize;
+
+	struct rpc_timeout	tcp_timeout;
+
+	/*
+	 * Saved socket callback addresses
+	 */
+	void			(*old_data_ready)(struct sock *);
+	void			(*old_state_change)(struct sock *);
+	void			(*old_write_space)(struct sock *);
+	void			(*old_error_report)(struct sock *);
+};
+
+/*
+ * TCP RPC flags
+ */
+#define XPRT_SOCK_CONNECTING	1U
+#define XPRT_SOCK_DATA_READY	(2)
+#define XPRT_SOCK_UPD_TIMEOUT	(3)
+#define XPRT_SOCK_WAKE_ERROR	(4)
+#define XPRT_SOCK_WAKE_WRITE	(5)
+#define XPRT_SOCK_WAKE_PENDING	(6)
+#define XPRT_SOCK_WAKE_DISCONNECT	(7)
+#define XPRT_SOCK_CONNECT_SENT	(8)
+#define XPRT_SOCK_NOSPACE	(9)
+#define XPRT_SOCK_IGNORE_RECV	(10)
+
+#endif /* _LINUX_SUNRPC_XPRTSOCK_H */