tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * linux/include/linux/sunrpc/xprtsock.h
3 *
4 * Declarations for the RPC transport socket provider.
5 */
6
7#ifndef _LINUX_SUNRPC_XPRTSOCK_H
8#define _LINUX_SUNRPC_XPRTSOCK_H
9
10#ifdef __KERNEL__
11
12int init_socket_xprt(void);
13void cleanup_socket_xprt(void);
14
15#define RPC_MIN_RESVPORT (1U)
16#define RPC_MAX_RESVPORT (65535U)
17#define RPC_DEF_MIN_RESVPORT (665U)
18#define RPC_DEF_MAX_RESVPORT (1023U)
19
20struct sock_xprt {
21 struct rpc_xprt xprt;
22
23 /*
24 * Network layer
25 */
26 struct socket * sock;
27 struct sock * inet;
28
29 /*
30 * State of TCP reply receive
31 */
32 __be32 tcp_fraghdr,
33 tcp_xid,
34 tcp_calldir;
35
36 u32 tcp_offset,
37 tcp_reclen;
38
39 unsigned long tcp_copied,
40 tcp_flags;
41
42 /*
43 * Connection of transports
44 */
45 unsigned long sock_state;
46 struct delayed_work connect_worker;
47 struct work_struct recv_worker;
48 struct mutex recv_mutex;
49 struct sockaddr_storage srcaddr;
50 unsigned short srcport;
51
52 /*
53 * UDP socket buffer size parameters
54 */
55 size_t rcvsize,
56 sndsize;
57
58 struct rpc_timeout tcp_timeout;
59
60 /*
61 * Saved socket callback addresses
62 */
63 void (*old_data_ready)(struct sock *);
64 void (*old_state_change)(struct sock *);
65 void (*old_write_space)(struct sock *);
66 void (*old_error_report)(struct sock *);
67};
68
69/*
70 * TCP receive state flags
71 */
72#define TCP_RCV_LAST_FRAG (1UL << 0)
73#define TCP_RCV_COPY_FRAGHDR (1UL << 1)
74#define TCP_RCV_COPY_XID (1UL << 2)
75#define TCP_RCV_COPY_DATA (1UL << 3)
76#define TCP_RCV_READ_CALLDIR (1UL << 4)
77#define TCP_RCV_COPY_CALLDIR (1UL << 5)
78
79/*
80 * TCP RPC flags
81 */
82#define TCP_RPC_REPLY (1UL << 6)
83
84#define XPRT_SOCK_CONNECTING 1U
85#define XPRT_SOCK_DATA_READY (2)
86#define XPRT_SOCK_UPD_TIMEOUT (3)
87
88#endif /* __KERNEL__ */
89
90#endif /* _LINUX_SUNRPC_XPRTSOCK_H */