1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * 22 * $FreeBSD$ 23 */ 24 /* 25 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 30 /* All Rights Reserved */ 31 32 /* 33 * Portions of this source code were derived from Berkeley 4.3 BSD 34 * under license from the Regents of the University of California. 35 */ 36 37 #ifndef _OPENSOLARIS_RPC_XDR_H_ 38 #define _OPENSOLARIS_RPC_XDR_H_ 39 40 #include_next <rpc/xdr.h> 41 42 #ifndef _KERNEL 43 #include_next <rpc/xdr.h> 44 45 /* 46 * Strangely, my glibc version (2.3.6) doesn't have xdr_control(), so 47 * we have to hack it in here (source taken from OpenSolaris). 48 * By the way, it is assumed the xdrmem implementation is used. 49 */ 50 51 #undef xdr_control 52 #define xdr_control(a,b,c) xdrmem_control(a,b,c) 53 54 /* 55 * These are the request arguments to XDR_CONTROL. 56 * 57 * XDR_PEEK - returns the contents of the next XDR unit on the XDR stream. 58 * XDR_SKIPBYTES - skips the next N bytes in the XDR stream. 59 * XDR_RDMAGET - for xdr implementation over RDMA, gets private flags from 60 * the XDR stream being moved over RDMA 61 * XDR_RDMANOCHUNK - for xdr implementaion over RDMA, sets private flags in 62 * the XDR stream moving over RDMA. 63 */ 64 #define XDR_PEEK 2 65 #define XDR_SKIPBYTES 3 66 #define XDR_RDMAGET 4 67 #define XDR_RDMASET 5 68 69 /* FIXME: probably doesn't work */ 70 static __inline bool_t 71 xdrmem_control(XDR *xdrs, int request, void *info) 72 { 73 xdr_bytesrec *xptr; 74 int32_t *int32p; 75 int len; 76 77 switch (request) { 78 79 case XDR_GET_BYTES_AVAIL: 80 xptr = (xdr_bytesrec *)info; 81 xptr->xc_is_last_record = TRUE; 82 xptr->xc_num_avail = xdrs->x_handy; 83 return (TRUE); 84 85 case XDR_PEEK: 86 /* 87 * Return the next 4 byte unit in the XDR stream. 88 */ 89 if (xdrs->x_handy < sizeof (int32_t)) 90 return (FALSE); 91 int32p = (int32_t *)info; 92 *int32p = (int32_t)ntohl((uint32_t) 93 (*((int32_t *)(xdrs->x_private)))); 94 return (TRUE); 95 96 case XDR_SKIPBYTES: 97 /* 98 * Skip the next N bytes in the XDR stream. 99 */ 100 int32p = (int32_t *)info; 101 len = RNDUP((int)(*int32p)); 102 if ((xdrs->x_handy -= len) < 0) 103 return (FALSE); 104 xdrs->x_private += len; 105 return (TRUE); 106 107 } 108 return (FALSE); 109 } 110 #endif /* !_KERNEL */ 111 112 #endif /* !_OPENSOLARIS_RPC_XDR_H_ */ 113