1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)tp_usrreq.c 7.22 (Berkeley) 08/28/91 8 */ 9 10 /*********************************************************** 11 Copyright IBM Corporation 1987 12 13 All Rights Reserved 14 15 Permission to use, copy, modify, and distribute this software and its 16 documentation for any purpose and without fee is hereby granted, 17 provided that the above copyright notice appear in all copies and that 18 both that copyright notice and this permission notice appear in 19 supporting documentation, and that the name of IBM not be 20 used in advertising or publicity pertaining to distribution of the 21 software without specific, written prior permission. 22 23 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 24 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 25 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 26 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 27 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 28 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 29 SOFTWARE. 30 31 ******************************************************************/ 32 33 /* 34 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison 35 */ 36 /* 37 * ARGO TP 38 * 39 * $Header: tp_usrreq.c,v 5.4 88/11/18 17:29:18 nhall Exp $ 40 * $Source: /usr/argo/sys/netiso/RCS/tp_usrreq.c,v $ 41 * 42 * tp_usrreq(), the fellow that gets called from most of the socket code. 43 * Pretty straighforward. 44 * THe only really awful stuff here is the OOB processing, which is done 45 * wholly here. 46 * tp_rcvoob() and tp_sendoob() are contained here and called by tp_usrreq(). 47 */ 48 49 #include "param.h" 50 #include "systm.h" 51 #include "mbuf.h" 52 #include "socket.h" 53 #include "socketvar.h" 54 #include "domain.h" 55 #include "protosw.h" 56 #include "errno.h" 57 #include "time.h" 58 59 #include "tp_param.h" 60 #include "tp_timer.h" 61 #include "tp_stat.h" 62 #include "tp_seq.h" 63 #include "tp_ip.h" 64 #include "tp_pcb.h" 65 #include "argo_debug.h" 66 #include "tp_trace.h" 67 #include "tp_meas.h" 68 #include "iso.h" 69 #include "iso_errno.h" 70 71 int tp_attach(), tp_driver(), tp_pcbbind(); 72 int TNew; 73 int TPNagle1, TPNagle2; 74 struct tp_pcb *tp_listeners, *tp_intercepts; 75 76 #ifdef ARGO_DEBUG 77 /* 78 * CALLED FROM: 79 * anywhere you want to debug... 80 * FUNCTION and ARGUMENTS: 81 * print (str) followed by the control info in the mbufs of an mbuf chain (n) 82 */ 83 void 84 dump_mbuf(n, str) 85 struct mbuf *n; 86 char *str; 87 { 88 struct mbuf *nextrecord; 89 90 printf("dump %s\n", str); 91 92 if (n == MNULL) { 93 printf("EMPTY:\n"); 94 return; 95 } 96 97 while (n) { 98 nextrecord = n->m_act; 99 printf("RECORD:\n"); 100 while (n) { 101 printf("%x : Len %x Data %x A %x Nx %x Tp %x\n", 102 n, n->m_len, n->m_data, n->m_act, n->m_next, n->m_type); 103 #ifdef notdef 104 { 105 register char *p = mtod(n, char *); 106 register int i; 107 108 printf("data: "); 109 for (i = 0; i < n->m_len; i++) { 110 if (i%8 == 0) 111 printf("\n"); 112 printf("0x%x ", *(p+i)); 113 } 114 printf("\n"); 115 } 116 #endif notdef 117 if (n->m_next == n) { 118 printf("LOOP!\n"); 119 return; 120 } 121 n = n->m_next; 122 } 123 n = nextrecord; 124 } 125 printf("\n"); 126 } 127 128 #endif ARGO_DEBUG 129 130 /* 131 * CALLED FROM: 132 * tp_usrreq(), PRU_RCVOOB 133 * FUNCTION and ARGUMENTS: 134 * Copy data from the expedited data socket buffer into 135 * the pre-allocated mbuf m. 136 * There is an isomorphism between XPD TPDUs and expedited data TSDUs. 137 * XPD tpdus are limited to 16 bytes of data so they fit in one mbuf. 138 * RETURN VALUE: 139 * EINVAL if debugging is on and a disaster has occurred 140 * ENOTCONN if the socket isn't connected 141 * EWOULDBLOCK if the socket is in non-blocking mode and there's no 142 * xpd data in the buffer 143 * E* whatever is returned from the fsm. 144 */ 145 tp_rcvoob(tpcb, so, m, outflags, inflags) 146 struct tp_pcb *tpcb; 147 register struct socket *so; 148 register struct mbuf *m; 149 int *outflags; 150 int inflags; 151 { 152 register struct mbuf *n; 153 register struct sockbuf *sb = &so->so_rcv; 154 struct tp_event E; 155 int error = 0; 156 register struct mbuf **nn; 157 158 IFDEBUG(D_XPD) 159 printf("PRU_RCVOOB, sostate 0x%x\n", so->so_state); 160 ENDDEBUG 161 162 /* if you use soreceive */ 163 if (m == MNULL) 164 return ENOBUFS; 165 166 restart: 167 if ((((so->so_state & SS_ISCONNECTED) == 0) 168 || (so->so_state & SS_ISDISCONNECTING) != 0) && 169 (so->so_proto->pr_flags & PR_CONNREQUIRED)) { 170 return ENOTCONN; 171 } 172 173 /* Take the first mbuf off the chain. 174 * Each XPD TPDU gives you a complete TSDU so the chains don't get 175 * coalesced, but one TSDU may span several mbufs. 176 * Nevertheless, since n should have a most 16 bytes, it 177 * will fit into m. (size was checked in tp_input() ) 178 */ 179 180 /* 181 * Code for excision of OOB data should be added to 182 * uipc_socket2.c (like sbappend). 183 */ 184 185 sblock(sb); 186 for (nn = &sb->sb_mb; n = *nn; nn = &n->m_act) 187 if (n->m_type == MT_OOBDATA) 188 break; 189 190 if (n == 0) { 191 IFDEBUG(D_XPD) 192 printf("RCVOOB: empty queue!\n"); 193 ENDDEBUG 194 sbunlock(sb); 195 if (so->so_state & SS_NBIO) { 196 return EWOULDBLOCK; 197 } 198 sbwait(sb); 199 goto restart; 200 } 201 m->m_len = 0; 202 203 /* Assuming at most one xpd tpdu is in the buffer at once */ 204 while (n != MNULL) { 205 m->m_len += n->m_len; 206 bcopy(mtod(n, caddr_t), mtod(m, caddr_t), (unsigned)n->m_len); 207 m->m_data += n->m_len; /* so mtod() in bcopy() above gives right addr */ 208 n = n->m_next; 209 } 210 m->m_data = m->m_dat; 211 m->m_flags |= M_EOR; 212 213 IFDEBUG(D_XPD) 214 printf("tp_rcvoob: xpdlen 0x%x\n", m->m_len); 215 dump_mbuf(so->so_rcv.sb_mb, "RCVOOB: Rcv socketbuf"); 216 dump_mbuf(sb->sb_mb, "RCVOOB: Xrcv socketbuf"); 217 ENDDEBUG 218 219 if ((inflags & MSG_PEEK) == 0) { 220 n = *nn; 221 *nn = n->m_act; 222 sb->sb_cc -= m->m_len; 223 } 224 225 release: 226 sbunlock(sb); 227 228 IFTRACE(D_XPD) 229 tptraceTPCB(TPPTmisc, "PRU_RCVOOB @ release sb_cc m_len", 230 tpcb->tp_Xrcv.sb_cc, m->m_len, 0, 0); 231 ENDTRACE 232 if (error == 0) 233 error = DoEvent(T_USR_Xrcvd); 234 return error; 235 } 236 237 /* 238 * CALLED FROM: 239 * tp_usrreq(), PRU_SENDOOB 240 * FUNCTION and ARGUMENTS: 241 * Send what's in the mbuf chain (m) as an XPD TPDU. 242 * The mbuf may not contain more then 16 bytes of data. 243 * XPD TSDUs aren't segmented, so they translate into 244 * exactly one XPD TPDU, with EOT bit set. 245 * RETURN VALUE: 246 * EWOULDBLOCK if socket is in non-blocking mode and the previous 247 * xpd data haven't been acked yet. 248 * EMSGSIZE if trying to send > max-xpd bytes (16) 249 * ENOBUFS if ran out of mbufs 250 */ 251 tp_sendoob(tpcb, so, xdata, outflags) 252 struct tp_pcb *tpcb; 253 register struct socket *so; 254 register struct mbuf *xdata; 255 int *outflags; /* not used */ 256 { 257 /* 258 * Each mbuf chain represents a sequence # in the XPD seq space. 259 * The first one in the queue has sequence # tp_Xuna. 260 * When we add to the XPD queue, we stuff a zero-length 261 * mbuf (mark) into the DATA queue, with its sequence number in m_next 262 * to be assigned to this XPD tpdu, so data xfer can stop 263 * when it reaches the zero-length mbuf if this XPD TPDU hasn't 264 * yet been acknowledged. 265 */ 266 register struct sockbuf *sb = &(tpcb->tp_Xsnd); 267 register struct mbuf *xmark; 268 register int len=0; 269 struct tp_event E; 270 271 IFDEBUG(D_XPD) 272 printf("tp_sendoob:"); 273 if (xdata) 274 printf("xdata len 0x%x\n", xdata->m_len); 275 ENDDEBUG 276 /* DO NOT LOCK the Xsnd buffer!!!! You can have at MOST one 277 * socket buf locked at any time!!! (otherwise you might 278 * sleep() in sblock() w/ a signal pending and cause the 279 * system call to be aborted w/ a locked socketbuf, which 280 * is a problem. So the so_snd buffer lock 281 * (done in sosend()) serves as the lock for Xpd. 282 */ 283 if (sb->sb_mb) { /* Anything already in eXpedited data sockbuf? */ 284 if (so->so_state & SS_NBIO) { 285 return EWOULDBLOCK; 286 } 287 while (sb->sb_mb) { 288 sbunlock(&so->so_snd); /* already locked by sosend */ 289 sbwait(&so->so_snd); 290 sblock(&so->so_snd); /* sosend will unlock on return */ 291 } 292 } 293 294 if (xdata == (struct mbuf *)0) { 295 /* empty xpd packet */ 296 MGETHDR(xdata, M_WAIT, MT_OOBDATA); 297 if (xdata == NULL) { 298 return ENOBUFS; 299 } 300 xdata->m_len = 0; 301 xdata->m_pkthdr.len = 0; 302 } 303 IFDEBUG(D_XPD) 304 printf("tp_sendoob 1:"); 305 if (xdata) 306 printf("xdata len 0x%x\n", xdata->m_len); 307 ENDDEBUG 308 xmark = xdata; /* temporary use of variable xmark */ 309 while (xmark) { 310 len += xmark->m_len; 311 xmark = xmark->m_next; 312 } 313 if (len > TP_MAX_XPD_DATA) { 314 return EMSGSIZE; 315 } 316 IFDEBUG(D_XPD) 317 printf("tp_sendoob 2:"); 318 if (xdata) 319 printf("xdata len 0x%x\n", len); 320 ENDDEBUG 321 322 323 IFTRACE(D_XPD) 324 tptraceTPCB(TPPTmisc, "XPD mark m_next ", xdata->m_next, 0, 0, 0); 325 ENDTRACE 326 327 sbappendrecord(sb, xdata); 328 329 IFDEBUG(D_XPD) 330 printf("tp_sendoob len 0x%x\n", len); 331 dump_mbuf(so->so_snd.sb_mb, "XPD request Regular sndbuf:"); 332 dump_mbuf(tpcb->tp_Xsnd.sb_mb, "XPD request Xsndbuf:"); 333 ENDDEBUG 334 return DoEvent(T_XPD_req); 335 } 336 337 /* 338 * CALLED FROM: 339 * the socket routines 340 * FUNCTION and ARGUMENTS: 341 * Handles all "user requests" except the [gs]ockopts() requests. 342 * The argument (req) is the request type (PRU*), 343 * (m) is an mbuf chain, generally used for send and 344 * receive type requests only. 345 * (nam) is used for addresses usually, in particular for the bind request. 346 * 347 */ 348 /*ARGSUSED*/ 349 ProtoHook 350 tp_usrreq(so, req, m, nam, controlp) 351 struct socket *so; 352 u_int req; 353 struct mbuf *m, *nam, *controlp; 354 { 355 register struct tp_pcb *tpcb = sototpcb(so); 356 int s = splnet(); 357 int error = 0; 358 int flags, *outflags = &flags; 359 u_long eotsdu = 0; 360 struct tp_event E; 361 362 IFDEBUG(D_REQUEST) 363 printf("usrreq(0x%x,%d,0x%x,0x%x,0x%x)\n",so,req,m,nam,outflags); 364 if (so->so_error) 365 printf("WARNING!!! so->so_error is 0x%x\n", so->so_error); 366 ENDDEBUG 367 IFTRACE(D_REQUEST) 368 tptraceTPCB(TPPTusrreq, "req so m state [", req, so, m, 369 tpcb?tpcb->tp_state:0); 370 ENDTRACE 371 372 if ((u_int)tpcb == 0 && req != PRU_ATTACH) { 373 IFTRACE(D_REQUEST) 374 tptraceTPCB(TPPTusrreq, "req failed NO TPCB[", 0, 0, 0, 0); 375 ENDTRACE 376 splx(s); 377 return ENOTCONN; 378 } 379 380 switch (req) { 381 382 case PRU_ATTACH: 383 if (tpcb) { 384 error = EISCONN; 385 } else if ((error = tp_attach(so, (int)nam)) == 0) 386 tpcb = sototpcb(so); 387 break; 388 389 case PRU_ABORT: /* called from close() */ 390 /* called for each incoming connect queued on the 391 * parent (accepting) socket 392 */ 393 if (tpcb->tp_state == TP_OPEN || tpcb->tp_state == TP_CONFIRMING) { 394 E.ATTR(T_DISC_req).e_reason = E_TP_NO_SESSION; 395 error = DoEvent(T_DISC_req); /* pretend it was a close() */ 396 break; 397 } /* else DROP THROUGH */ 398 399 case PRU_DETACH: /* called from close() */ 400 /* called only after disconnect was called */ 401 if (tpcb->tp_state == TP_LISTENING) { 402 register struct tp_pcb **tt; 403 for (tt = &tp_listeners; *tt; tt = &((*tt)->tp_nextlisten)) 404 if (*tt == tpcb) 405 break; 406 if (*tt) 407 *tt = tpcb->tp_nextlisten; 408 else 409 printf("tp_usrreq - detach: should panic\n"); 410 } 411 if (tpcb->tp_next) { 412 remque(tpcb); 413 tpcb->tp_next = tpcb->tp_prev = 0; 414 } 415 error = DoEvent(T_DETACH); 416 if (tpcb->tp_state == TP_CLOSED) { 417 free((caddr_t)tpcb, M_PCB); 418 tpcb = 0; 419 } 420 break; 421 422 case PRU_SHUTDOWN: 423 /* recv end may have been released; local credit might be zero */ 424 case PRU_DISCONNECT: 425 E.ATTR(T_DISC_req).e_reason = E_TP_NORMAL_DISC; 426 error = DoEvent(T_DISC_req); 427 break; 428 429 case PRU_BIND: 430 error = tp_pcbbind(tpcb, nam); 431 break; 432 433 case PRU_LISTEN: 434 if (tpcb->tp_state != TP_CLOSED || tpcb->tp_lsuffixlen == 0 || 435 tpcb->tp_next == 0) 436 error = EINVAL; 437 else { 438 register struct tp_pcb **tt; 439 remque(tpcb); 440 tpcb->tp_next = tpcb->tp_prev = tpcb; 441 for (tt = &tp_listeners; *tt; tt = &((*tt)->tp_nextlisten)) 442 if ((*tt)->tp_lsuffixlen) 443 break; 444 tpcb->tp_nextlisten = *tt; 445 *tt = tpcb; 446 error = DoEvent(T_LISTEN_req); 447 } 448 break; 449 450 case PRU_CONNECT2: 451 error = EOPNOTSUPP; /* for unix domain sockets */ 452 break; 453 454 case PRU_CONNECT: 455 IFTRACE(D_CONN) 456 tptraceTPCB(TPPTmisc, 457 "PRU_CONNECT: so 0x%x *SHORT_LSUFXP(tpcb) 0x%x lsuflen 0x%x, class 0x%x", 458 tpcb->tp_sock, *SHORT_LSUFXP(tpcb), tpcb->tp_lsuffixlen, 459 tpcb->tp_class); 460 ENDTRACE 461 IFDEBUG(D_CONN) 462 printf("PRU_CONNECT: so *SHORT_LSUFXP(tpcb) 0x%x lsuflen 0x%x, class 0x%x", 463 tpcb->tp_sock, *SHORT_LSUFXP(tpcb), tpcb->tp_lsuffixlen, 464 tpcb->tp_class); 465 ENDDEBUG 466 if (tpcb->tp_lsuffixlen == 0) { 467 if (error = tp_pcbbind(tpcb, MNULL)) { 468 IFDEBUG(D_CONN) 469 printf("pcbbind returns error 0x%x\n", error); 470 ENDDEBUG 471 break; 472 } 473 } 474 IFDEBUG(D_CONN) 475 printf("isop 0x%x isop->isop_socket offset 12 :\n", tpcb->tp_npcb); 476 dump_buf(tpcb->tp_npcb, 16); 477 ENDDEBUG 478 if (error = tp_route_to(nam, tpcb, /* channel */0)) 479 break; 480 IFDEBUG(D_CONN) 481 printf( 482 "PRU_CONNECT after tpcb 0x%x so 0x%x npcb 0x%x flags 0x%x\n", 483 tpcb, so, tpcb->tp_npcb, tpcb->tp_flags); 484 printf("isop 0x%x isop->isop_socket offset 12 :\n", tpcb->tp_npcb); 485 dump_buf(tpcb->tp_npcb, 16); 486 ENDDEBUG 487 if (tpcb->tp_fsuffixlen == 0) { 488 /* didn't set peer extended suffix */ 489 (tpcb->tp_nlproto->nlp_getsufx)(tpcb->tp_npcb, &tpcb->tp_fsuffixlen, 490 tpcb->tp_fsuffix, TP_FOREIGN); 491 } 492 (void) (tpcb->tp_nlproto->nlp_mtu)(so, tpcb->tp_npcb, 493 &tpcb->tp_l_tpdusize, &tpcb->tp_tpdusize, 0); 494 if (tpcb->tp_state == TP_CLOSED) { 495 soisconnecting(so); 496 error = DoEvent(T_CONN_req); 497 } else { 498 (tpcb->tp_nlproto->nlp_pcbdisc)(tpcb->tp_npcb); 499 error = EISCONN; 500 } 501 IFPERF(tpcb) 502 u_int lsufx, fsufx; 503 lsufx = *(u_short *)(tpcb->tp_lsuffix); 504 fsufx = *(u_short *)(tpcb->tp_fsuffix); 505 506 tpmeas(tpcb->tp_lref, 507 TPtime_open | (tpcb->tp_xtd_format << 4), 508 &time, lsufx, fsufx, tpcb->tp_fref); 509 ENDPERF 510 break; 511 512 case PRU_ACCEPT: 513 (tpcb->tp_nlproto->nlp_getnetaddr)(tpcb->tp_npcb, nam, TP_FOREIGN); 514 IFDEBUG(D_REQUEST) 515 printf("ACCEPT PEERADDDR:"); 516 dump_buf(mtod(nam, char *), nam->m_len); 517 ENDDEBUG 518 IFPERF(tpcb) 519 u_int lsufx, fsufx; 520 lsufx = *(u_short *)(tpcb->tp_lsuffix); 521 fsufx = *(u_short *)(tpcb->tp_fsuffix); 522 523 tpmeas(tpcb->tp_lref, TPtime_open, 524 &time, lsufx, fsufx, tpcb->tp_fref); 525 ENDPERF 526 break; 527 528 case PRU_RCVD: 529 if (so->so_state & SS_ISCONFIRMING) { 530 if (tpcb->tp_state == TP_CONFIRMING) 531 error = tp_confirm(tpcb); 532 break; 533 } 534 IFTRACE(D_DATA) 535 tptraceTPCB(TPPTmisc, 536 "RCVD BF: lcredit sent_lcdt cc hiwat \n", 537 tpcb->tp_lcredit, tpcb->tp_sent_lcdt, 538 so->so_rcv.sb_cc, so->so_rcv.sb_hiwat); 539 LOCAL_CREDIT(tpcb); 540 tptraceTPCB(TPPTmisc, 541 "PRU_RCVD AF sbspace lcredit hiwat cc", 542 sbspace(&so->so_rcv), tpcb->tp_lcredit, 543 so->so_rcv.sb_cc, so->so_rcv.sb_hiwat); 544 ENDTRACE 545 IFDEBUG(D_REQUEST) 546 printf("RCVD: cc %d space %d hiwat %d\n", 547 so->so_rcv.sb_cc, sbspace(&so->so_rcv), 548 so->so_rcv.sb_hiwat); 549 ENDDEBUG 550 if (((int)nam) & MSG_OOB) 551 error = DoEvent(T_USR_Xrcvd); 552 else 553 error = DoEvent(T_USR_rcvd); 554 break; 555 556 case PRU_RCVOOB: 557 if ((so->so_state & SS_ISCONNECTED) == 0) { 558 error = ENOTCONN; 559 break; 560 } 561 if (! tpcb->tp_xpd_service) { 562 error = EOPNOTSUPP; 563 break; 564 } 565 /* kludge - nam is really flags here */ 566 error = tp_rcvoob(tpcb, so, m, outflags, (int)nam); 567 break; 568 569 case PRU_SEND: 570 case PRU_SENDOOB: 571 if (controlp) { 572 error = tp_snd_control(controlp, so, &m); 573 controlp = NULL; 574 if (error) 575 break; 576 } 577 if ((so->so_state & SS_ISCONFIRMING) && 578 (tpcb->tp_state == TP_CONFIRMING) && 579 (error = tp_confirm(tpcb))) 580 break; 581 if (req == PRU_SENDOOB) { 582 error = (tpcb->tp_xpd_service == 0) ? 583 EOPNOTSUPP : tp_sendoob(tpcb, so, m, outflags); 584 break; 585 } 586 if (m == 0) 587 break; 588 if (m->m_flags & M_EOR) { 589 eotsdu = 1; 590 m->m_flags &= ~M_EOR; 591 } 592 if (eotsdu == 0 && m->m_pkthdr.len == 0) 593 break; 594 if (tpcb->tp_state != TP_AKWAIT && tpcb->tp_state != TP_OPEN) { 595 error = ENOTCONN; 596 break; 597 } 598 /* 599 * The protocol machine copies mbuf chains, 600 * prepends headers, assigns seq numbers, and 601 * puts the packets on the device. 602 * When they are acked they are removed from the socket buf. 603 * 604 * sosend calls this up until sbspace goes negative. 605 * Sbspace may be made negative by appending this mbuf chain, 606 * possibly by a whole cluster. 607 */ 608 { 609 /* 610 * Could have eotsdu and no data.(presently MUST have 611 * an mbuf though, even if its length == 0) 612 */ 613 int totlen = m->m_pkthdr.len; 614 struct sockbuf *sb = &so->so_snd; 615 IFPERF(tpcb) 616 PStat(tpcb, Nb_from_sess) += totlen; 617 tpmeas(tpcb->tp_lref, TPtime_from_session, 0, 0, 618 PStat(tpcb, Nb_from_sess), totlen); 619 ENDPERF 620 IFDEBUG(D_SYSCALL) 621 printf( 622 "PRU_SEND: eot %d before sbappend 0x%x len 0x%x to sb @ 0x%x\n", 623 eotsdu, m, totlen, sb); 624 dump_mbuf(sb->sb_mb, "so_snd.sb_mb"); 625 dump_mbuf(m, "m : to be added"); 626 ENDDEBUG 627 tp_packetize(tpcb, m, eotsdu); 628 IFDEBUG(D_SYSCALL) 629 printf("PRU_SEND: eot %d after sbappend 0x%x\n", eotsdu, m); 630 dump_mbuf(sb->sb_mb, "so_snd.sb_mb"); 631 ENDDEBUG 632 if (tpcb->tp_state == TP_OPEN) 633 error = DoEvent(T_DATA_req); 634 IFDEBUG(D_SYSCALL) 635 printf("PRU_SEND: after driver error 0x%x \n",error); 636 printf("so_snd 0x%x cc 0t%d mbcnt 0t%d\n", 637 sb, sb->sb_cc, sb->sb_mbcnt); 638 dump_mbuf(sb->sb_mb, "so_snd.sb_mb after driver"); 639 ENDDEBUG 640 } 641 break; 642 643 case PRU_SOCKADDR: 644 (tpcb->tp_nlproto->nlp_getnetaddr)(tpcb->tp_npcb, nam, TP_LOCAL); 645 break; 646 647 case PRU_PEERADDR: 648 (tpcb->tp_nlproto->nlp_getnetaddr)(tpcb->tp_npcb, nam, TP_FOREIGN); 649 break; 650 651 case PRU_CONTROL: 652 error = EOPNOTSUPP; 653 break; 654 655 case PRU_PROTOSEND: 656 case PRU_PROTORCV: 657 case PRU_SENSE: 658 case PRU_SLOWTIMO: 659 case PRU_FASTTIMO: 660 error = EOPNOTSUPP; 661 break; 662 663 default: 664 #ifdef ARGO_DEBUG 665 printf("tp_usrreq UNKNOWN PRU %d\n", req); 666 #endif ARGO_DEBUG 667 error = EOPNOTSUPP; 668 } 669 670 IFDEBUG(D_REQUEST) 671 printf("%s, so 0x%x, tpcb 0x%x, error %d, state %d\n", 672 "returning from tp_usrreq", so, tpcb, error, 673 tpcb ? 0 : tpcb->tp_state); 674 ENDDEBUG 675 IFTRACE(D_REQUEST) 676 tptraceTPCB(TPPTusrreq, "END req so m state [", req, so, m, 677 tpcb?0:tpcb->tp_state); 678 ENDTRACE 679 if (controlp) { 680 m_freem(controlp); 681 printf("control data unexpectedly retained in tp_usrreq()"); 682 } 683 splx(s); 684 return error; 685 } 686 tp_ltrace(so, uio) 687 struct socket *so; 688 struct uio *uio; 689 { 690 IFTRACE(D_DATA) 691 register struct tp_pcb *tpcb = sototpcb(so); 692 if (tpcb) { 693 tptraceTPCB(TPPTmisc, "sosend so resid iovcnt", so, 694 uio->uio_resid, uio->uio_iovcnt, 0); 695 } 696 ENDTRACE 697 } 698 699 tp_confirm(tpcb) 700 register struct tp_pcb *tpcb; 701 { 702 struct tp_event E; 703 if (tpcb->tp_state == TP_CONFIRMING) 704 return DoEvent(T_ACPT_req); 705 printf("Tp confirm called when not confirming; tpcb 0x%x, state 0x%x\n", 706 tpcb, tpcb->tp_state); 707 return 0; 708 } 709 710 /* 711 * Process control data sent with sendmsg() 712 */ 713 tp_snd_control(m, so, data) 714 struct mbuf *m; 715 struct socket *so; 716 register struct mbuf **data; 717 { 718 register struct cmsghdr *ch; 719 int error = 0; 720 721 if (m && m->m_len) { 722 ch = mtod(m, struct cmsghdr *); 723 m->m_len -= sizeof (*ch); 724 m->m_data += sizeof (*ch); 725 error = tp_ctloutput(PRCO_SETOPT, 726 so, ch->cmsg_level, ch->cmsg_type, &m); 727 if (ch->cmsg_type == TPOPT_DISC_DATA) { 728 if (data && *data) { 729 m_freem(*data); 730 *data = 0; 731 } 732 error = tp_usrreq(so, PRU_DISCONNECT, (struct mbuf *)0, 733 (caddr_t)0, (struct mbuf *)0); 734 } 735 } 736 if (m) 737 m_freem(m); 738 return error; 739 } 740