diff options
Diffstat (limited to 'sys/compat/opensolaris/rpc/xdr.h')
| -rw-r--r-- | sys/compat/opensolaris/rpc/xdr.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sys/compat/opensolaris/rpc/xdr.h b/sys/compat/opensolaris/rpc/xdr.h new file mode 100644 index 0000000..7fc09d27 --- /dev/null +++ b/sys/compat/opensolaris/rpc/xdr.h @@ -0,0 +1,123 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ +/* All Rights Reserved */ + +/* + * Portions of this source code were derived from Berkeley 4.3 BSD + * under license from the Regents of the University of California. + */ + +#ifndef _OPENSOLARIS_RPC_XDR_H_ +#define _OPENSOLARIS_RPC_XDR_H_ + +#include_next <rpc/xdr.h> + +#ifndef _KERNEL +#include_next <rpc/xdr.h> + +/* + * Strangely, my glibc version (2.3.6) doesn't have xdr_control(), so + * we have to hack it in here (source taken from OpenSolaris). + * By the way, it is assumed the xdrmem implementation is used. + */ + +#undef xdr_control +#define xdr_control(a,b,c) xdrmem_control(a,b,c) + +/* + * These are XDR control operators + */ + +#define XDR_GET_BYTES_AVAIL 1 + +struct xdr_bytesrec { + bool_t xc_is_last_record; + size_t xc_num_avail; +}; + +typedef struct xdr_bytesrec xdr_bytesrec; + +/* + * These are the request arguments to XDR_CONTROL. + * + * XDR_PEEK - returns the contents of the next XDR unit on the XDR stream. + * XDR_SKIPBYTES - skips the next N bytes in the XDR stream. + * XDR_RDMAGET - for xdr implementation over RDMA, gets private flags from + * the XDR stream being moved over RDMA + * XDR_RDMANOCHUNK - for xdr implementaion over RDMA, sets private flags in + * the XDR stream moving over RDMA. + */ +#define XDR_PEEK 2 +#define XDR_SKIPBYTES 3 +#define XDR_RDMAGET 4 +#define XDR_RDMASET 5 + +/* FIXME: probably doesn't work */ +static __inline bool_t +xdrmem_control(XDR *xdrs, int request, void *info) +{ + xdr_bytesrec *xptr; + int32_t *int32p; + int len; + + switch (request) { + + case XDR_GET_BYTES_AVAIL: + xptr = (xdr_bytesrec *)info; + xptr->xc_is_last_record = TRUE; + xptr->xc_num_avail = xdrs->x_handy; + return (TRUE); + + case XDR_PEEK: + /* + * Return the next 4 byte unit in the XDR stream. + */ + if (xdrs->x_handy < sizeof (int32_t)) + return (FALSE); + int32p = (int32_t *)info; + *int32p = (int32_t)ntohl((uint32_t) + (*((int32_t *)(xdrs->x_private)))); + return (TRUE); + + case XDR_SKIPBYTES: + /* + * Skip the next N bytes in the XDR stream. + */ + int32p = (int32_t *)info; + len = RNDUP((int)(*int32p)); + if ((xdrs->x_handy -= len) < 0) + return (FALSE); + xdrs->x_private += len; + return (TRUE); + + } + return (FALSE); +} +#endif /* !_KERNEL */ + +#endif /* !_OPENSOLARIS_RPC_XDR_H_ */ |
