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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 1993-2003 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 32 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */ 33 34 #include "mt.h" 35 #include <stdlib.h> 36 #include <errno.h> 37 #include <stropts.h> 38 #include <rpc/trace.h> 39 #include <xti.h> 40 #include <sys/timod.h> 41 #include "tx.h" 42 43 44 /* 45 * t_rcvconnect() is documented to be only called with non-blocking 46 * endpoints for asynchronous connection establishment. However, the 47 * direction taken by XTI is to allow it to be called if t_connect() 48 * fails with TSYSERR/EINTR and state is T_OUTCON (i.e. T_CONN_REQ was 49 * sent down). This implies that an interrupted synchronous connection 50 * establishment which was interrupted after connection request was transmitted 51 * can now be completed by calling t_rcvconnect() 52 */ 53 int 54 _tx_rcvconnect(int fd, struct t_call *call, int api_semantics) 55 { 56 struct _ti_user *tiptr; 57 int retval, sv_errno; 58 struct strbuf ctlbuf; 59 int didalloc; 60 61 trace2(TR_t_rcvconnect, 0, fd); 62 if ((tiptr = _t_checkfd(fd, 0, api_semantics)) == NULL) { 63 sv_errno = errno; 64 trace2(TR_t_rcvconnect, 1, fd); 65 errno = sv_errno; 66 return (-1); 67 } 68 69 sig_mutex_lock(&tiptr->ti_lock); 70 71 if (_T_IS_XTI(api_semantics)) { 72 /* 73 * User level state verification only done for XTI 74 * because doing for TLI may break existing applications 75 */ 76 if (tiptr->ti_state != T_OUTCON) { 77 t_errno = TOUTSTATE; 78 sig_mutex_unlock(&tiptr->ti_lock); 79 trace2(TR_t_rcvconnect, 1, fd); 80 return (-1); 81 } 82 } 83 84 /* 85 * Acquire ctlbuf for use in sending/receiving control part 86 * of the message. 87 */ 88 if (_t_acquire_ctlbuf(tiptr, &ctlbuf, &didalloc) < 0) { 89 sv_errno = errno; 90 sig_mutex_unlock(&tiptr->ti_lock); 91 trace2(TR_t_rcvconnect, 1, fd); 92 errno = sv_errno; 93 return (-1); 94 } 95 96 retval = _t_rcv_conn_con(tiptr, call, &ctlbuf, api_semantics); 97 if (retval == 0 || t_errno == TBUFOVFLW) { 98 _T_TX_NEXTSTATE(T_RCVCONNECT, tiptr, 99 "t_rcvconnect: Invalid state on event T_RCVCONNECT"); 100 /* 101 * Update attributes which may have been negotiated during 102 * connection establishment for protocols where we suspect 103 * such negotiation is likely (e.g. OSI). We do not do it for 104 * all endpoints for performance reasons. Also, this code is 105 * deliberately done after user level state changes so even 106 * the (unlikely) failure case reflects a connected endpoint. 107 */ 108 if (tiptr->ti_tsdusize != 0) 109 if (_t_do_postconn_sync(fd, tiptr) < 0) 110 retval = -1; 111 } 112 sv_errno = errno; 113 if (didalloc) 114 free(ctlbuf.buf); 115 else 116 tiptr->ti_ctlbuf = ctlbuf.buf; 117 sig_mutex_unlock(&tiptr->ti_lock); 118 trace2(TR_t_rcvconnect, 1, fd); 119 errno = sv_errno; 120 return (retval); 121 } 122