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 /* 41 * Kernel TLI-like function to unbind a transport endpoint 42 * to an address. 43 * 44 * Returns 0 on success and ret is set if non-NULL, 45 * else positive error code. 46 */ 47 48 #include <sys/param.h> 49 #include <sys/types.h> 50 #include <sys/proc.h> 51 #include <sys/file.h> 52 #include <sys/user.h> 53 #include <sys/errno.h> 54 #include <sys/stream.h> 55 #include <sys/strsubr.h> 56 #include <sys/ioctl.h> 57 #include <sys/stropts.h> 58 #include <sys/vnode.h> 59 #include <sys/tihdr.h> 60 #include <sys/timod.h> 61 #include <sys/tiuser.h> 62 #include <sys/t_kuser.h> 63 #include <sys/kmem.h> 64 #include <sys/sysmacros.h> 65 66 67 int 68 t_kunbind(TIUSER *tiptr) 69 { 70 struct T_unbind_req *unbind_req; 71 struct T_ok_ack *ok_ack; 72 int unbindsz; 73 vnode_t *vp; 74 file_t *fp; 75 char *buf; 76 struct strioctl strioc; 77 int retval; 78 int error; 79 80 error = 0; 81 retval = 0; 82 fp = tiptr->fp; 83 vp = fp->f_vnode; 84 85 /* 86 * send the ioctl request and wait 87 * for a reply. 88 */ 89 unbindsz = MAX(TUNBINDREQSZ, TOKACKSZ); 90 buf = kmem_alloc(unbindsz, KM_SLEEP); 91 /* LINTED pointer alignment */ 92 unbind_req = (struct T_unbind_req *)buf; 93 unbind_req->PRIM_type = T_UNBIND_REQ; 94 95 strioc.ic_cmd = TI_UNBIND; 96 strioc.ic_timout = 0; 97 strioc.ic_dp = buf; 98 strioc.ic_len = (int)TUNBINDREQSZ; 99 100 error = strdoioctl(vp->v_stream, &strioc, FNATIVE, K_TO_K, CRED(), 101 &retval); 102 if (error) 103 goto badbind; 104 105 if (retval) { 106 if ((retval & 0xff) == TSYSERR) 107 error = (retval >> 8) & 0xff; 108 else 109 error = t_tlitosyserr(retval & 0xff); 110 goto badbind; 111 } 112 113 /* LINTED pointer alignment */ 114 ok_ack = (struct T_ok_ack *)strioc.ic_dp; 115 if (strioc.ic_len < TOKACKSZ || 116 ok_ack->PRIM_type != T_OK_ACK || 117 ok_ack->CORRECT_prim != T_UNBIND_REQ) 118 error = EIO; 119 120 badbind: 121 kmem_free(buf, unbindsz); 122 return (error); 123 } 124