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 (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 24 /* All Rights Reserved */ 25 26 /* 27 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 #include "mt.h" 32 #include <stdlib.h> 33 #include <errno.h> 34 #include <stropts.h> 35 #include <xti.h> 36 #include <sys/timod.h> 37 #include "tx.h" 38 39 40 /* 41 * t_rcvconnect() is documented to be only called with non-blocking 42 * endpoints for asynchronous connection establishment. However, the 43 * direction taken by XTI is to allow it to be called if t_connect() 44 * fails with TSYSERR/EINTR and state is T_OUTCON (i.e. T_CONN_REQ was 45 * sent down). This implies that an interrupted synchronous connection 46 * establishment which was interrupted after connection request was transmitted 47 * can now be completed by calling t_rcvconnect() 48 */ 49 int 50 _tx_rcvconnect(int fd, struct t_call *call, int api_semantics) 51 { 52 struct _ti_user *tiptr; 53 int retval, sv_errno; 54 struct strbuf ctlbuf; 55 int didalloc; 56 57 if ((tiptr = _t_checkfd(fd, 0, api_semantics)) == NULL) 58 return (-1); 59 60 sig_mutex_lock(&tiptr->ti_lock); 61 62 if (_T_IS_XTI(api_semantics)) { 63 /* 64 * User level state verification only done for XTI 65 * because doing for TLI may break existing applications 66 */ 67 if (tiptr->ti_state != T_OUTCON) { 68 t_errno = TOUTSTATE; 69 sig_mutex_unlock(&tiptr->ti_lock); 70 return (-1); 71 } 72 } 73 74 /* 75 * Acquire ctlbuf for use in sending/receiving control part 76 * of the message. 77 */ 78 if (_t_acquire_ctlbuf(tiptr, &ctlbuf, &didalloc) < 0) { 79 sv_errno = errno; 80 sig_mutex_unlock(&tiptr->ti_lock); 81 errno = sv_errno; 82 return (-1); 83 } 84 85 retval = _t_rcv_conn_con(tiptr, call, &ctlbuf, api_semantics); 86 if (retval == 0 || t_errno == TBUFOVFLW) { 87 _T_TX_NEXTSTATE(T_RCVCONNECT, tiptr, 88 "t_rcvconnect: Invalid state on event T_RCVCONNECT"); 89 /* 90 * Update attributes which may have been negotiated during 91 * connection establishment for protocols where we suspect 92 * such negotiation is likely (e.g. OSI). We do not do it for 93 * all endpoints for performance reasons. Also, this code is 94 * deliberately done after user level state changes so even 95 * the (unlikely) failure case reflects a connected endpoint. 96 */ 97 if (tiptr->ti_tsdusize != 0) 98 if (_t_do_postconn_sync(fd, tiptr) < 0) 99 retval = -1; 100 } 101 sv_errno = errno; 102 if (didalloc) 103 free(ctlbuf.buf); 104 else 105 tiptr->ti_ctlbuf = ctlbuf.buf; 106 sig_mutex_unlock(&tiptr->ti_lock); 107 errno = sv_errno; 108 return (retval); 109 } 110