include/linux/sunrpc/xprtsock.h

   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
  12 /*
  13  * Socket transport setup operations
  14  */
  15 struct rpc_xprt *xs_setup_udp(struct xprt_create *args);
  16 struct rpc_xprt *xs_setup_tcp(struct xprt_create *args);
  17
  18 int             init_socket_xprt(void);
  19 void            cleanup_socket_xprt(void);
  20
  21 /*
  22  * RPC transport identifiers for UDP, TCP
  23  *
  24  * To preserve compatibility with the historical use of raw IP protocol
  25  * id's for transport selection, these are specified with the previous
  26  * values. No such restriction exists for new transports, except that
  27  * they may not collide with these values (17 and 6, respectively).
  28  */
  29 #define XPRT_TRANSPORT_UDP      IPPROTO_UDP
  30 #define XPRT_TRANSPORT_TCP      IPPROTO_TCP
  31
  32 /*
  33  * RPC slot table sizes for UDP, TCP transports
  34  */
  35 extern unsigned int xprt_udp_slot_table_entries;
  36 extern unsigned int xprt_tcp_slot_table_entries;
  37
  38 /*
  39  * Parameters for choosing a free port
  40  */
  41 extern unsigned int xprt_min_resvport;
  42 extern unsigned int xprt_max_resvport;
  43
  44 #define RPC_MIN_RESVPORT        (1U)
  45 #define RPC_MAX_RESVPORT        (65535U)
  46 #define RPC_DEF_MIN_RESVPORT    (665U)
  47 #define RPC_DEF_MAX_RESVPORT    (1023U)
  48
  49 #endif /* __KERNEL__ */
  50
  51 #endif /* _LINUX_SUNRPC_XPRTSOCK_H */