1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * t_sndudata.c and t_sndvudata.c are very similar and contain common code. 31*0Sstevel@tonic-gate * Any changes to either of them should be reviewed to see whether they 32*0Sstevel@tonic-gate * are applicable to the other file. 33*0Sstevel@tonic-gate */ 34*0Sstevel@tonic-gate #include "mt.h" 35*0Sstevel@tonic-gate #include <rpc/trace.h> 36*0Sstevel@tonic-gate #include <stdlib.h> 37*0Sstevel@tonic-gate #include <errno.h> 38*0Sstevel@tonic-gate #include <stropts.h> 39*0Sstevel@tonic-gate #include <sys/stream.h> 40*0Sstevel@tonic-gate #define _SUN_TPI_VERSION 2 41*0Sstevel@tonic-gate #include <sys/tihdr.h> 42*0Sstevel@tonic-gate #include <sys/timod.h> 43*0Sstevel@tonic-gate #include <xti.h> 44*0Sstevel@tonic-gate #include <syslog.h> 45*0Sstevel@tonic-gate #include <assert.h> 46*0Sstevel@tonic-gate #include "tx.h" 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate int 49*0Sstevel@tonic-gate _tx_sndvudata(int fd, const struct t_unitdata *unitdata, struct t_iovec *tiov, 50*0Sstevel@tonic-gate unsigned int tiovcount, int api_semantics) 51*0Sstevel@tonic-gate { 52*0Sstevel@tonic-gate struct T_unitdata_req *udreq; 53*0Sstevel@tonic-gate struct strbuf ctlbuf; 54*0Sstevel@tonic-gate struct strbuf databuf; 55*0Sstevel@tonic-gate int size; 56*0Sstevel@tonic-gate struct _ti_user *tiptr; 57*0Sstevel@tonic-gate int sv_errno; 58*0Sstevel@tonic-gate int didalloc; 59*0Sstevel@tonic-gate char *dataptr; 60*0Sstevel@tonic-gate unsigned int nbytes; 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 0, fd); 63*0Sstevel@tonic-gate assert(api_semantics == TX_XTI_XNS5_API); 64*0Sstevel@tonic-gate if ((tiptr = _t_checkfd(fd, 0, api_semantics)) == NULL) { 65*0Sstevel@tonic-gate sv_errno = errno; 66*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 67*0Sstevel@tonic-gate errno = sv_errno; 68*0Sstevel@tonic-gate return (-1); 69*0Sstevel@tonic-gate } 70*0Sstevel@tonic-gate sig_mutex_lock(&tiptr->ti_lock); 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate if (tiptr->ti_servtype != T_CLTS) { 73*0Sstevel@tonic-gate t_errno = TNOTSUPPORT; 74*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 75*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 76*0Sstevel@tonic-gate return (-1); 77*0Sstevel@tonic-gate } 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate if (tiovcount == 0 || tiovcount > T_IOV_MAX) { 80*0Sstevel@tonic-gate t_errno = TBADDATA; 81*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 82*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 83*0Sstevel@tonic-gate return (-1); 84*0Sstevel@tonic-gate } 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate if (tiptr->ti_state != T_IDLE) { 87*0Sstevel@tonic-gate t_errno = TOUTSTATE; 88*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 89*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 90*0Sstevel@tonic-gate return (-1); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate nbytes = _t_bytecount_upto_intmax(tiov, tiovcount); 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate if ((nbytes == 0) && 96*0Sstevel@tonic-gate !(tiptr->ti_prov_flag & (SENDZERO|OLD_SENDZERO))) { 97*0Sstevel@tonic-gate t_errno = TBADDATA; 98*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 99*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 100*0Sstevel@tonic-gate return (-1); 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate if ((tiptr->ti_maxpsz > 0) && (nbytes > (uint32_t)tiptr->ti_maxpsz)) { 104*0Sstevel@tonic-gate t_errno = TBADDATA; 105*0Sstevel@tonic-gate sv_errno = errno; 106*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 107*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 108*0Sstevel@tonic-gate errno = sv_errno; 109*0Sstevel@tonic-gate return (-1); 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate /* 113*0Sstevel@tonic-gate * Acquire ctlbuf for use in sending/receiving control part 114*0Sstevel@tonic-gate * of the message. 115*0Sstevel@tonic-gate */ 116*0Sstevel@tonic-gate if (_t_acquire_ctlbuf(tiptr, &ctlbuf, &didalloc) < 0) { 117*0Sstevel@tonic-gate sv_errno = errno; 118*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 119*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 120*0Sstevel@tonic-gate errno = sv_errno; 121*0Sstevel@tonic-gate return (-1); 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate udreq = (struct T_unitdata_req *)ctlbuf.buf; 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate udreq->PRIM_type = T_UNITDATA_REQ; 127*0Sstevel@tonic-gate udreq->DEST_length = unitdata->addr.len; 128*0Sstevel@tonic-gate udreq->DEST_offset = 0; 129*0Sstevel@tonic-gate udreq->OPT_length = unitdata->opt.len; 130*0Sstevel@tonic-gate udreq->OPT_offset = 0; 131*0Sstevel@tonic-gate size = (int)sizeof (struct T_unitdata_req); 132*0Sstevel@tonic-gate 133*0Sstevel@tonic-gate if (unitdata->addr.len) { 134*0Sstevel@tonic-gate if (_t_aligned_copy(&ctlbuf, unitdata->addr.len, size, 135*0Sstevel@tonic-gate unitdata->addr.buf, &udreq->DEST_offset) < 0) { 136*0Sstevel@tonic-gate /* 137*0Sstevel@tonic-gate * Aligned copy based will overflow buffer 138*0Sstevel@tonic-gate * allocated based on maximum transport address 139*0Sstevel@tonic-gate * size information 140*0Sstevel@tonic-gate */ 141*0Sstevel@tonic-gate t_errno = TSYSERR; 142*0Sstevel@tonic-gate errno = EPROTO; 143*0Sstevel@tonic-gate goto err_out; 144*0Sstevel@tonic-gate } 145*0Sstevel@tonic-gate size = udreq->DEST_offset + udreq->DEST_length; 146*0Sstevel@tonic-gate } 147*0Sstevel@tonic-gate if (unitdata->opt.len) { 148*0Sstevel@tonic-gate if (_t_aligned_copy(&ctlbuf, unitdata->opt.len, size, 149*0Sstevel@tonic-gate unitdata->opt.buf, &udreq->OPT_offset) < 0) { 150*0Sstevel@tonic-gate /* 151*0Sstevel@tonic-gate * Aligned copy based will overflow buffer 152*0Sstevel@tonic-gate * allocated based on maximum transport option 153*0Sstevel@tonic-gate * size information 154*0Sstevel@tonic-gate */ 155*0Sstevel@tonic-gate t_errno = TSYSERR; 156*0Sstevel@tonic-gate errno = EPROTO; 157*0Sstevel@tonic-gate goto err_out; 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate size = udreq->OPT_offset + udreq->OPT_length; 160*0Sstevel@tonic-gate } 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate if (size > (int)ctlbuf.maxlen) { 163*0Sstevel@tonic-gate t_errno = TSYSERR; 164*0Sstevel@tonic-gate errno = EIO; 165*0Sstevel@tonic-gate goto err_out; 166*0Sstevel@tonic-gate } 167*0Sstevel@tonic-gate 168*0Sstevel@tonic-gate ctlbuf.len = size; 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate dataptr = NULL; 171*0Sstevel@tonic-gate if (nbytes != 0) { 172*0Sstevel@tonic-gate if ((dataptr = malloc((size_t)nbytes)) == NULL) { 173*0Sstevel@tonic-gate t_errno = TSYSERR; 174*0Sstevel@tonic-gate goto err_out; 175*0Sstevel@tonic-gate } 176*0Sstevel@tonic-gate _t_gather(dataptr, tiov, tiovcount); 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate databuf.buf = dataptr; 179*0Sstevel@tonic-gate databuf.len = nbytes; 180*0Sstevel@tonic-gate databuf.maxlen = nbytes; 181*0Sstevel@tonic-gate /* 182*0Sstevel@tonic-gate * Calls to send data (write or putmsg) can potentially 183*0Sstevel@tonic-gate * block, for MT case, we drop the lock and enable signals here 184*0Sstevel@tonic-gate * and acquire it back 185*0Sstevel@tonic-gate */ 186*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 187*0Sstevel@tonic-gate if (putmsg(fd, &ctlbuf, &databuf, 0) < 0) { 188*0Sstevel@tonic-gate if (errno == EAGAIN) 189*0Sstevel@tonic-gate t_errno = TFLOW; 190*0Sstevel@tonic-gate else 191*0Sstevel@tonic-gate t_errno = TSYSERR; 192*0Sstevel@tonic-gate sv_errno = errno; 193*0Sstevel@tonic-gate sig_mutex_lock(&tiptr->ti_lock); 194*0Sstevel@tonic-gate errno = sv_errno; 195*0Sstevel@tonic-gate goto err_out; 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate sig_mutex_lock(&tiptr->ti_lock); 198*0Sstevel@tonic-gate 199*0Sstevel@tonic-gate _T_TX_NEXTSTATE(T_SNDUDATA, tiptr, 200*0Sstevel@tonic-gate "t_sndvudata: invalid state event T_SNDUDATA"); 201*0Sstevel@tonic-gate if (didalloc) 202*0Sstevel@tonic-gate free(ctlbuf.buf); 203*0Sstevel@tonic-gate else 204*0Sstevel@tonic-gate tiptr->ti_ctlbuf = ctlbuf.buf; 205*0Sstevel@tonic-gate if (dataptr != NULL) 206*0Sstevel@tonic-gate free(dataptr); 207*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 208*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 0, fd); 209*0Sstevel@tonic-gate return (0); 210*0Sstevel@tonic-gate err_out: 211*0Sstevel@tonic-gate sv_errno = errno; 212*0Sstevel@tonic-gate if (didalloc) 213*0Sstevel@tonic-gate free(ctlbuf.buf); 214*0Sstevel@tonic-gate else 215*0Sstevel@tonic-gate tiptr->ti_ctlbuf = ctlbuf.buf; 216*0Sstevel@tonic-gate if (dataptr != NULL) 217*0Sstevel@tonic-gate free(dataptr); 218*0Sstevel@tonic-gate sig_mutex_unlock(&tiptr->ti_lock); 219*0Sstevel@tonic-gate trace2(TR_t_sndvudata, 1, fd); 220*0Sstevel@tonic-gate errno = sv_errno; 221*0Sstevel@tonic-gate return (-1); 222*0Sstevel@tonic-gate } 223