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 struct delayed_work connect_worker; 46 struct sockaddr_storage srcaddr; 47 unsigned short srcport; 48 49 /* 50 * UDP socket buffer size parameters 51 */ 52 size_t rcvsize, 53 sndsize; 54 55 /* 56 * Saved socket callback addresses 57 */ 58 void (*old_data_ready)(struct sock *); 59 void (*old_state_change)(struct sock *); 60 void (*old_write_space)(struct sock *); 61 void (*old_error_report)(struct sock *); 62}; 63 64/* 65 * TCP receive state flags 66 */ 67#define TCP_RCV_LAST_FRAG (1UL << 0) 68#define TCP_RCV_COPY_FRAGHDR (1UL << 1) 69#define TCP_RCV_COPY_XID (1UL << 2) 70#define TCP_RCV_COPY_DATA (1UL << 3) 71#define TCP_RCV_READ_CALLDIR (1UL << 4) 72#define TCP_RCV_COPY_CALLDIR (1UL << 5) 73 74/* 75 * TCP RPC flags 76 */ 77#define TCP_RPC_REPLY (1UL << 6) 78 79#endif /* __KERNEL__ */ 80 81#endif /* _LINUX_SUNRPC_XPRTSOCK_H */ 82