diff options
Diffstat (limited to 'include/linux/sunrpc/xprtsock.h')
-rw-r--r-- | include/linux/sunrpc/xprtsock.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h new file mode 100644 index 000000000..689062afd --- /dev/null +++ b/include/linux/sunrpc/xprtsock.h @@ -0,0 +1,94 @@ +/* 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); +unsigned short get_srcport(struct rpc_xprt *); + +#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 sockaddr_storage srcaddr; + unsigned short srcport; + int xprt_err; + + /* + * 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) + +#endif /* _LINUX_SUNRPC_XPRTSOCK_H */ |