| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
| 13 | int init_socket_xprt(void); |
| 14 | void 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 | |
| 21 | struct sock_xprt { |
| 22 | struct rpc_xprt xprt; |
| 23 | |
| 24 | /* |
| 25 | * Network layer |
| 26 | */ |
| 27 | struct socket * sock; |
| 28 | struct sock * inet; |
| 29 | |
| 30 | /* |
| 31 | * State of TCP reply receive |
| 32 | */ |
| 33 | __be32 tcp_fraghdr, |
| 34 | tcp_xid, |
| 35 | tcp_calldir; |
| 36 | |
| 37 | u32 tcp_offset, |
| 38 | tcp_reclen; |
| 39 | |
| 40 | unsigned long tcp_copied, |
| 41 | tcp_flags; |
| 42 | |
| 43 | /* |
| 44 | * Connection of transports |
| 45 | */ |
| 46 | unsigned long sock_state; |
| 47 | struct delayed_work connect_worker; |
| 48 | struct work_struct recv_worker; |
| 49 | struct mutex recv_mutex; |
| 50 | struct sockaddr_storage srcaddr; |
| 51 | unsigned short srcport; |
| 52 | |
| 53 | /* |
| 54 | * UDP socket buffer size parameters |
| 55 | */ |
| 56 | size_t rcvsize, |
| 57 | sndsize; |
| 58 | |
| 59 | struct rpc_timeout tcp_timeout; |
| 60 | |
| 61 | /* |
| 62 | * Saved socket callback addresses |
| 63 | */ |
| 64 | void (*old_data_ready)(struct sock *); |
| 65 | void (*old_state_change)(struct sock *); |
| 66 | void (*old_write_space)(struct sock *); |
| 67 | void (*old_error_report)(struct sock *); |
| 68 | }; |
| 69 | |
| 70 | /* |
| 71 | * TCP receive state flags |
| 72 | */ |
| 73 | #define TCP_RCV_LAST_FRAG (1UL << 0) |
| 74 | #define TCP_RCV_COPY_FRAGHDR (1UL << 1) |
| 75 | #define TCP_RCV_COPY_XID (1UL << 2) |
| 76 | #define TCP_RCV_COPY_DATA (1UL << 3) |
| 77 | #define TCP_RCV_READ_CALLDIR (1UL << 4) |
| 78 | #define TCP_RCV_COPY_CALLDIR (1UL << 5) |
| 79 | |
| 80 | /* |
| 81 | * TCP RPC flags |
| 82 | */ |
| 83 | #define TCP_RPC_REPLY (1UL << 6) |
| 84 | |
| 85 | #define XPRT_SOCK_CONNECTING 1U |
| 86 | #define XPRT_SOCK_DATA_READY (2) |
| 87 | #define XPRT_SOCK_UPD_TIMEOUT (3) |
| 88 | |
| 89 | #endif /* __KERNEL__ */ |
| 90 | |
| 91 | #endif /* _LINUX_SUNRPC_XPRTSOCK_H */ |