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 sockaddr_storage srcaddr; 48 unsigned short srcport; 49 50 /* 51 * UDP socket buffer size parameters 52 */ 53 size_t rcvsize, 54 sndsize; 55 56 /* 57 * Saved socket callback addresses 58 */ 59 void (*old_data_ready)(struct sock *); 60 void (*old_state_change)(struct sock *); 61 void (*old_write_space)(struct sock *); 62 void (*old_error_report)(struct sock *); 63}; 64 65/* 66 * TCP receive state flags 67 */ 68#define TCP_RCV_LAST_FRAG (1UL << 0) 69#define TCP_RCV_COPY_FRAGHDR (1UL << 1) 70#define TCP_RCV_COPY_XID (1UL << 2) 71#define TCP_RCV_COPY_DATA (1UL << 3) 72#define TCP_RCV_READ_CALLDIR (1UL << 4) 73#define TCP_RCV_COPY_CALLDIR (1UL << 5) 74 75/* 76 * TCP RPC flags 77 */ 78#define TCP_RPC_REPLY (1UL << 6) 79 80#define XPRT_SOCK_CONNECTING 1U 81 82#endif /* __KERNEL__ */ 83 84#endif /* _LINUX_SUNRPC_XPRTSOCK_H */ 85