/* * 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. */ /* * Data Link API - Attach physical unit */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include extern struct dl_descriptor *_getdesc(); int dl_attach(int fd, int unit) { struct dl_descriptor *dl; struct strbuf ctl; int flags; dl = _getdesc(fd); if (dl != NULL) { union DL_primitives prim; if (dl->info.state != DL_UNATTACHED) { if (dl->info.style != DL_STYLE_2) dl->error = DLNOTSUPP; else if (dl->info.state == DL_BOUND) dl->error = DLBOUND; else dl->error = DLSYSERR; return (-1); } prim.dl_primitive = DL_ATTACH_REQ; /* this is opaque data of 32-bits */ prim.attach_req.dl_ppa = unit; ctl.maxlen = ctl.len = sizeof (prim); ctl.len = ctl.len = sizeof (prim.attach_req); ctl.buf = (char *)&prim; if (putmsg(fd, &ctl, NULL, 0) < 0) { dl->error = DLSYSERR; return (-1); } ctl.maxlen = sizeof (prim); flags = 0; if (getmsg(fd, &ctl, NULL, &flags) < 0) { dl->error = DLSYSERR; return (-1); } switch (prim.dl_primitive) { case DL_ERROR_ACK: dl->error = prim.error_ack.dl_errno; errno = prim.error_ack.dl_unix_errno; return (-1); case DL_OK_ACK: dl->info.state = DLSTATE_UNBOUND; return (0); default: dl->error = DLBADPRIM; return (-1); } } return (-1); }