/* * 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 (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ /* * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3.4.1 */ #include "mt.h" #include #include #include #include #include #define _SUN_TPI_VERSION 2 #include #include #include #include #include #include "tx.h" int _tx_bind( int fd, const struct t_bind *req, struct t_bind *ret, int api_semantics ) { struct T_bind_req *bind_reqp; struct T_bind_ack *bind_ackp; int size, sv_errno, retlen; struct _ti_user *tiptr; sigset_t mask; int didalloc; int use_xpg41tpi; struct strbuf ctlbuf; if ((tiptr = _t_checkfd(fd, 0, api_semantics)) == NULL) return (-1); /* * We block all signals since TI_BIND, which sends a TPI message * O_T_BIND_REQ down, is not an idempotetent operation * Note that sig_mutex_lock() only defers signals, it does not * block them, so interruptible syscalls could still get EINTR. */ (void) thr_sigsetmask(SIG_SETMASK, &fillset, &mask); sig_mutex_lock(&tiptr->ti_lock); if (_T_IS_XTI(api_semantics)) { /* * User level state verification only done for XTI * because doing for TLI may break existing applications */ if (tiptr->ti_state != T_UNBND) { t_errno = TOUTSTATE; sig_mutex_unlock(&tiptr->ti_lock); (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL); return (-1); } } /* * Acquire buffer for use in sending/receiving the message. * Note: assumes (correctly) that ti_ctlsize is large enough * to hold sizeof (struct T_bind_req/ack) */ if (_t_acquire_ctlbuf(tiptr, &ctlbuf, &didalloc) < 0) { sv_errno = errno; sig_mutex_unlock(&tiptr->ti_lock); (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL); errno = sv_errno; return (-1); } /* LINTED pointer cast */ bind_reqp = (struct T_bind_req *)ctlbuf.buf; size = (int)sizeof (struct T_bind_req); use_xpg41tpi = (_T_IS_XTI(api_semantics)) && ((tiptr->ti_prov_flag & XPG4_1) != 0); if (use_xpg41tpi) /* XTI call and provider knows the XTI inspired TPI */ bind_reqp->PRIM_type = T_BIND_REQ; else /* TLI caller old TPI provider */ bind_reqp->PRIM_type = O_T_BIND_REQ; bind_reqp->ADDR_length = (req == NULL? 0: req->addr.len); bind_reqp->ADDR_offset = 0; bind_reqp->CONIND_number = (req == NULL? 0: req->qlen); if (bind_reqp->ADDR_length) { if (_t_aligned_copy(&ctlbuf, (int)bind_reqp->ADDR_length, size, req->addr.buf, &bind_reqp->ADDR_offset) < 0) { /* * Aligned copy will overflow buffer allocated based * on transport maximum address length. * return error. */ t_errno = TBADADDR; goto err_out; } size = bind_reqp->ADDR_offset + bind_reqp->ADDR_length; } if (_t_do_ioctl(fd, ctlbuf.buf, size, TI_BIND, &retlen) < 0) { goto err_out; } if (retlen < (int)sizeof (struct T_bind_ack)) { t_errno = TSYSERR; errno = EIO; goto err_out; } /* LINTED pointer cast */ bind_ackp = (struct T_bind_ack *)ctlbuf.buf; if ((req != NULL) && req->addr.len != 0 && (use_xpg41tpi == 0) && (_T_IS_XTI(api_semantics))) { /* * Best effort to do XTI on old TPI. * * Match address requested or unbind and fail with * TADDRBUSY. * * XXX - Hack alert ! Should we do this at all ? * Not "supported" as may not work if encoding of * address is different in the returned address. This * will also have trouble with TCP/UDP wildcard port * requests */ if ((req->addr.len != bind_ackp->ADDR_length) || (memcmp(req->addr.buf, ctlbuf.buf + bind_ackp->ADDR_offset, req->addr.len) != 0)) { (void) _tx_unbind_locked(fd, tiptr, &ctlbuf); t_errno = TADDRBUSY; goto err_out; } } tiptr->ti_ocnt = 0; tiptr->ti_flags &= ~TX_TQFULL_NOTIFIED; _T_TX_NEXTSTATE(T_BIND, tiptr, "t_bind: invalid state event T_BIND"); if (ret != NULL) { if (_T_IS_TLI(api_semantics) || ret->addr.maxlen > 0) { if (TLEN_GT_NLEN(bind_reqp->ADDR_length, ret->addr.maxlen)) { t_errno = TBUFOVFLW; goto err_out; } (void) memcpy(ret->addr.buf, ctlbuf.buf + bind_ackp->ADDR_offset, (size_t)bind_ackp->ADDR_length); ret->addr.len = bind_ackp->ADDR_length; } ret->qlen = bind_ackp->CONIND_number; } tiptr->ti_qlen = (uint_t)bind_ackp->CONIND_number; if (didalloc) free(ctlbuf.buf); else tiptr->ti_ctlbuf = ctlbuf.buf; sig_mutex_unlock(&tiptr->ti_lock); (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL); return (0); /* NOTREACHED */ err_out: sv_errno = errno; if (didalloc) free(ctlbuf.buf); else tiptr->ti_ctlbuf = ctlbuf.buf; sig_mutex_unlock(&tiptr->ti_lock); (void) thr_sigsetmask(SIG_SETMASK, &mask, NULL); errno = sv_errno; return (-1); }