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 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 #pragma ident "%Z%%M% %I% %E% SMI" 41 42 /* 43 * Kernel TLI-like function to unbind a transport endpoint 44 * to an address. 45 * 46 * Returns 0 on success and ret is set if non-NULL, 47 * else positive error code. 48 */ 49 50 #include <sys/param.h> 51 #include <sys/types.h> 52 #include <sys/proc.h> 53 #include <sys/file.h> 54 #include <sys/user.h> 55 #include <sys/errno.h> 56 #include <sys/stream.h> 57 #include <sys/strsubr.h> 58 #include <sys/ioctl.h> 59 #include <sys/stropts.h> 60 #include <sys/vnode.h> 61 #include <sys/tihdr.h> 62 #include <sys/timod.h> 63 #include <sys/tiuser.h> 64 #include <sys/t_kuser.h> 65 #include <sys/kmem.h> 66 #include <sys/sysmacros.h> 67 68 69 int 70 t_kunbind(TIUSER *tiptr) 71 { 72 struct T_unbind_req *unbind_req; 73 struct T_ok_ack *ok_ack; 74 int unbindsz; 75 vnode_t *vp; 76 file_t *fp; 77 char *buf; 78 struct strioctl strioc; 79 int retval; 80 int error; 81 82 error = 0; 83 retval = 0; 84 fp = tiptr->fp; 85 vp = fp->f_vnode; 86 87 /* 88 * send the ioctl request and wait 89 * for a reply. 90 */ 91 unbindsz = MAX(TUNBINDREQSZ, TOKACKSZ); 92 buf = kmem_alloc(unbindsz, KM_SLEEP); 93 /* LINTED pointer alignment */ 94 unbind_req = (struct T_unbind_req *)buf; 95 unbind_req->PRIM_type = T_UNBIND_REQ; 96 97 strioc.ic_cmd = TI_UNBIND; 98 strioc.ic_timout = 0; 99 strioc.ic_dp = buf; 100 strioc.ic_len = (int)TUNBINDREQSZ; 101 102 error = strdoioctl(vp->v_stream, &strioc, FNATIVE, K_TO_K, CRED(), 103 &retval); 104 if (error) 105 goto badbind; 106 107 if (retval) { 108 if ((retval & 0xff) == TSYSERR) 109 error = (retval >> 8) & 0xff; 110 else 111 error = t_tlitosyserr(retval & 0xff); 112 goto badbind; 113 } 114 115 /* LINTED pointer alignment */ 116 ok_ack = (struct T_ok_ack *)strioc.ic_dp; 117 if (strioc.ic_len < TOKACKSZ || 118 ok_ack->PRIM_type != T_OK_ACK || 119 ok_ack->CORRECT_prim != T_UNBIND_REQ) 120 error = EIO; 121 122 badbind: 123 kmem_free(buf, unbindsz); 124 return (error); 125 } 126