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 | int init_socket_xprt(void); |
12 | void cleanup_socket_xprt(void); |
13 | |
14 | #define RPC_MIN_RESVPORT (1U) |
15 | #define RPC_MAX_RESVPORT (65535U) |
16 | #define RPC_DEF_MIN_RESVPORT (665U) |
17 | #define RPC_DEF_MAX_RESVPORT (1023U) |
18 | |
19 | struct sock_xprt { |
20 | struct rpc_xprt xprt; |
21 | |
22 | /* |
23 | * Network layer |
24 | */ |
25 | struct socket * sock; |
26 | struct sock * inet; |
27 | struct file * file; |
28 | |
29 | /* |
30 | * State of TCP reply receive |
31 | */ |
32 | struct { |
33 | struct { |
34 | __be32 fraghdr, |
35 | xid, |
36 | calldir; |
37 | } __attribute__((packed)); |
38 | |
39 | u32 offset, |
40 | len; |
41 | |
42 | unsigned long copied; |
43 | } recv; |
44 | |
45 | /* |
46 | * State of TCP transmit queue |
47 | */ |
48 | struct { |
49 | u32 offset; |
50 | } xmit; |
51 | |
52 | /* |
53 | * Connection of transports |
54 | */ |
55 | unsigned long sock_state; |
56 | struct delayed_work connect_worker; |
57 | struct work_struct error_worker; |
58 | struct work_struct recv_worker; |
59 | struct mutex recv_mutex; |
60 | struct completion handshake_done; |
61 | struct sockaddr_storage srcaddr; |
62 | unsigned short srcport; |
63 | int xprt_err; |
64 | struct rpc_clnt *clnt; |
65 | |
66 | /* |
67 | * UDP socket buffer size parameters |
68 | */ |
69 | size_t rcvsize, |
70 | sndsize; |
71 | |
72 | struct rpc_timeout tcp_timeout; |
73 | |
74 | /* |
75 | * Saved socket callback addresses |
76 | */ |
77 | void (*old_data_ready)(struct sock *); |
78 | void (*old_state_change)(struct sock *); |
79 | void (*old_write_space)(struct sock *); |
80 | void (*old_error_report)(struct sock *); |
81 | }; |
82 | |
83 | /* |
84 | * TCP RPC flags |
85 | */ |
86 | #define XPRT_SOCK_CONNECTING 1U |
87 | #define XPRT_SOCK_DATA_READY (2) |
88 | #define XPRT_SOCK_UPD_TIMEOUT (3) |
89 | #define XPRT_SOCK_WAKE_ERROR (4) |
90 | #define XPRT_SOCK_WAKE_WRITE (5) |
91 | #define XPRT_SOCK_WAKE_PENDING (6) |
92 | #define XPRT_SOCK_WAKE_DISCONNECT (7) |
93 | #define XPRT_SOCK_CONNECT_SENT (8) |
94 | #define XPRT_SOCK_NOSPACE (9) |
95 | #define XPRT_SOCK_IGNORE_RECV (10) |
96 | |
97 | #endif /* _LINUX_SUNRPC_XPRTSOCK_H */ |
98 | |