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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * linux/include/linux/sunrpc/xprtsock.h
4 *
5 * Declarations for the RPC transport socket provider.
6 */
7
8#ifndef _LINUX_SUNRPC_XPRTSOCK_H
9#define _LINUX_SUNRPC_XPRTSOCK_H
10
11#ifdef __KERNEL__
12
13int init_socket_xprt(void);
14void cleanup_socket_xprt(void);
15
16#define RPC_MIN_RESVPORT (1U)
17#define RPC_MAX_RESVPORT (65535U)
18#define RPC_DEF_MIN_RESVPORT (665U)
19#define RPC_DEF_MAX_RESVPORT (1023U)
20
21struct sock_xprt {
22 struct rpc_xprt xprt;
23
24 /*
25 * Network layer
26 */
27 struct socket * sock;
28 struct sock * inet;
29 struct file * file;
30
31 /*
32 * State of TCP reply receive
33 */
34 struct {
35 struct {
36 __be32 fraghdr,
37 xid,
38 calldir;
39 } __attribute__((packed));
40
41 u32 offset,
42 len;
43
44 unsigned long copied;
45 } recv;
46
47 /*
48 * State of TCP transmit queue
49 */
50 struct {
51 u32 offset;
52 } xmit;
53
54 /*
55 * Connection of transports
56 */
57 unsigned long sock_state;
58 struct delayed_work connect_worker;
59 struct work_struct error_worker;
60 struct work_struct recv_worker;
61 struct mutex recv_mutex;
62 struct sockaddr_storage srcaddr;
63 unsigned short srcport;
64
65 /*
66 * UDP socket buffer size parameters
67 */
68 size_t rcvsize,
69 sndsize;
70
71 struct rpc_timeout tcp_timeout;
72
73 /*
74 * Saved socket callback addresses
75 */
76 void (*old_data_ready)(struct sock *);
77 void (*old_state_change)(struct sock *);
78 void (*old_write_space)(struct sock *);
79 void (*old_error_report)(struct sock *);
80};
81
82/*
83 * TCP RPC flags
84 */
85#define XPRT_SOCK_CONNECTING 1U
86#define XPRT_SOCK_DATA_READY (2)
87#define XPRT_SOCK_UPD_TIMEOUT (3)
88#define XPRT_SOCK_WAKE_ERROR (4)
89#define XPRT_SOCK_WAKE_WRITE (5)
90#define XPRT_SOCK_WAKE_PENDING (6)
91#define XPRT_SOCK_WAKE_DISCONNECT (7)
92
93#endif /* __KERNEL__ */
94
95#endif /* _LINUX_SUNRPC_XPRTSOCK_H */