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/* 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
#ifdef __KERNEL__
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;
/*
* State of TCP reply receive
*/
__be32 tcp_fraghdr,
tcp_xid,
tcp_calldir;
u32 tcp_offset,
tcp_reclen;
unsigned long tcp_copied,
tcp_flags;
/*
* Connection of transports
*/
unsigned long sock_state;
struct delayed_work connect_worker;
struct work_struct recv_worker;
struct mutex recv_mutex;
struct sockaddr_storage srcaddr;
unsigned short srcport;
/*
* 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 receive state flags
*/
#define TCP_RCV_LAST_FRAG (1UL << 0)
#define TCP_RCV_COPY_FRAGHDR (1UL << 1)
#define TCP_RCV_COPY_XID (1UL << 2)
#define TCP_RCV_COPY_DATA (1UL << 3)
#define TCP_RCV_READ_CALLDIR (1UL << 4)
#define TCP_RCV_COPY_CALLDIR (1UL << 5)
/*
* TCP RPC flags
*/
#define TCP_RPC_REPLY (1UL << 6)
#define XPRT_SOCK_CONNECTING 1U
#define XPRT_SOCK_DATA_READY (2)
#define XPRT_SOCK_UPD_TIMEOUT (3)
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_XPRTSOCK_H */
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