krpc.h revision 261046
1238901Sandrew/*- 2238901Sandrew * Copyright (c) 2009, Sun Microsystems, Inc. 3353358Sdim * All rights reserved. 4353358Sdim * 5353358Sdim * Redistribution and use in source and binary forms, with or without 6238901Sandrew * modification, are permitted provided that the following conditions are met: 7238901Sandrew * - Redistributions of source code must retain the above copyright notice, 8238901Sandrew * this list of conditions and the following disclaimer. 9238901Sandrew * - Redistributions in binary form must reproduce the above copyright notice, 10238901Sandrew * this list of conditions and the following disclaimer in the documentation 11238901Sandrew * and/or other materials provided with the distribution. 12238901Sandrew * - Neither the name of Sun Microsystems, Inc. nor the names of its 13238901Sandrew * contributors may be used to endorse or promote products derived 14238901Sandrew * from this software without specific prior written permission. 15238901Sandrew * 16238901Sandrew * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17238901Sandrew * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18238901Sandrew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19238901Sandrew * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20274201Sdim * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21274201Sdim * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22276789Sdim * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23245614Sandrew * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24251034Sed * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25238901Sandrew * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26238901Sandrew * POSSIBILITY OF SUCH DAMAGE. 27238901Sandrew * 28238901Sandrew * $FreeBSD: stable/10/sys/rpc/krpc.h 261046 2014-01-22 23:45:27Z mav $ 29238901Sandrew */ 30238901Sandrew 31#ifndef _RPC_KRPC_H_ 32#define _RPC_KRPC_H_ 33 34#ifdef _KERNEL 35/* 36 * Definitions now shared between client and server RPC for backchannels. 37 */ 38#define MCALL_MSG_SIZE 24 39 40/* 41 * A pending RPC request which awaits a reply. Requests which have 42 * received their reply will have cr_xid set to zero and cr_mrep to 43 * the mbuf chain of the reply. 44 */ 45struct ct_request { 46 TAILQ_ENTRY(ct_request) cr_link; 47 uint32_t cr_xid; /* XID of request */ 48 struct mbuf *cr_mrep; /* reply received by upcall */ 49 int cr_error; /* any error from upcall */ 50 char cr_verf[MAX_AUTH_BYTES]; /* reply verf */ 51}; 52 53TAILQ_HEAD(ct_request_list, ct_request); 54 55struct rc_data { 56 struct mtx rc_lock; 57 struct sockaddr_storage rc_addr; /* server address */ 58 struct netconfig* rc_nconf; /* network type */ 59 rpcprog_t rc_prog; /* program number */ 60 rpcvers_t rc_vers; /* version number */ 61 size_t rc_sendsz; 62 size_t rc_recvsz; 63 struct timeval rc_timeout; 64 struct timeval rc_retry; 65 int rc_retries; 66 int rc_privport; 67 char *rc_waitchan; 68 int rc_intr; 69 int rc_connecting; 70 int rc_closed; 71 struct ucred *rc_ucred; 72 CLIENT* rc_client; /* underlying RPC client */ 73 struct rpc_err rc_err; 74 void *rc_backchannel; 75}; 76 77struct ct_data { 78 struct mtx ct_lock; 79 int ct_threads; /* number of threads in clnt_vc_call */ 80 bool_t ct_closing; /* TRUE if we are closing */ 81 bool_t ct_closed; /* TRUE if we are closed */ 82 struct socket *ct_socket; /* connection socket */ 83 bool_t ct_closeit; /* close it on destroy */ 84 struct timeval ct_wait; /* wait interval in milliseconds */ 85 struct sockaddr_storage ct_addr; /* remote addr */ 86 struct rpc_err ct_error; 87 uint32_t ct_xid; 88 char ct_mcallc[MCALL_MSG_SIZE]; /* marshalled callmsg */ 89 size_t ct_mpos; /* pos after marshal */ 90 const char *ct_waitchan; 91 int ct_waitflag; 92 struct mbuf *ct_record; /* current reply record */ 93 size_t ct_record_resid; /* how much left of reply to read */ 94 bool_t ct_record_eor; /* true if reading last fragment */ 95 struct ct_request_list ct_pending; 96 int ct_upcallrefs; /* Ref cnt of upcalls in prog. */ 97 SVCXPRT *ct_backchannelxprt; /* xprt for backchannel */ 98}; 99 100struct cf_conn { /* kept in xprt->xp_p1 for actual connection */ 101 enum xprt_stat strm_stat; 102 struct mbuf *mpending; /* unparsed data read from the socket */ 103 struct mbuf *mreq; /* current record being built from mpending */ 104 uint32_t resid; /* number of bytes needed for fragment */ 105 bool_t eor; /* reading last fragment of current record */ 106}; 107 108#endif /* _KERNEL */ 109 110#endif /* _RPC_KRPC_H_ */ 111