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 7.26 (Berkeley) 05/11/92 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, M_WAITOK); 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, M_WAITOK); /* 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 error = DoEvent(T_DETACH); 402 if (tpcb->tp_state == TP_CLOSED) { 403 if (tpcb->tp_notdetached) { 404 IFDEBUG(D_CONN) 405 printf("PRU_DETACH: not detached\n"); 406 ENDDEBUG 407 tp_detach(tpcb); 408 } 409 free((caddr_t)tpcb, M_PCB); 410 tpcb = 0; 411 } 412 break; 413 414 case PRU_SHUTDOWN: 415 /* recv end may have been released; local credit might be zero */ 416 case PRU_DISCONNECT: 417 E.ATTR(T_DISC_req).e_reason = E_TP_NORMAL_DISC; 418 error = DoEvent(T_DISC_req); 419 break; 420 421 case PRU_BIND: 422 error = tp_pcbbind(tpcb, nam); 423 break; 424 425 case PRU_LISTEN: 426 if (tpcb->tp_state != TP_CLOSED || tpcb->tp_lsuffixlen == 0 || 427 tpcb->tp_next == 0) 428 error = EINVAL; 429 else { 430 register struct tp_pcb **tt; 431 remque(tpcb); 432 tpcb->tp_next = tpcb->tp_prev = tpcb; 433 for (tt = &tp_listeners; *tt; tt = &((*tt)->tp_nextlisten)) 434 if ((*tt)->tp_lsuffixlen) 435 break; 436 tpcb->tp_nextlisten = *tt; 437 *tt = tpcb; 438 error = DoEvent(T_LISTEN_req); 439 } 440 break; 441 442 case PRU_CONNECT2: 443 error = EOPNOTSUPP; /* for unix domain sockets */ 444 break; 445 446 case PRU_CONNECT: 447 IFTRACE(D_CONN) 448 tptraceTPCB(TPPTmisc, 449 "PRU_CONNECT: so 0x%x *SHORT_LSUFXP(tpcb) 0x%x lsuflen 0x%x, class 0x%x", 450 tpcb->tp_sock, *SHORT_LSUFXP(tpcb), tpcb->tp_lsuffixlen, 451 tpcb->tp_class); 452 ENDTRACE 453 IFDEBUG(D_CONN) 454 printf("PRU_CONNECT: so *SHORT_LSUFXP(tpcb) 0x%x lsuflen 0x%x, class 0x%x", 455 tpcb->tp_sock, *SHORT_LSUFXP(tpcb), tpcb->tp_lsuffixlen, 456 tpcb->tp_class); 457 ENDDEBUG 458 if (tpcb->tp_lsuffixlen == 0) { 459 if (error = tp_pcbbind(tpcb, MNULL)) { 460 IFDEBUG(D_CONN) 461 printf("pcbbind returns error 0x%x\n", error); 462 ENDDEBUG 463 break; 464 } 465 } 466 IFDEBUG(D_CONN) 467 printf("isop 0x%x isop->isop_socket offset 12 :\n", tpcb->tp_npcb); 468 dump_buf(tpcb->tp_npcb, 16); 469 ENDDEBUG 470 if (error = tp_route_to(nam, tpcb, /* channel */0)) 471 break; 472 IFDEBUG(D_CONN) 473 printf( 474 "PRU_CONNECT after tpcb 0x%x so 0x%x npcb 0x%x flags 0x%x\n", 475 tpcb, so, tpcb->tp_npcb, tpcb->tp_flags); 476 printf("isop 0x%x isop->isop_socket offset 12 :\n", tpcb->tp_npcb); 477 dump_buf(tpcb->tp_npcb, 16); 478 ENDDEBUG 479 if (tpcb->tp_fsuffixlen == 0) { 480 /* didn't set peer extended suffix */ 481 (tpcb->tp_nlproto->nlp_getsufx)(tpcb->tp_npcb, &tpcb->tp_fsuffixlen, 482 tpcb->tp_fsuffix, TP_FOREIGN); 483 } 484 if (tpcb->tp_state == TP_CLOSED) { 485 soisconnecting(so); 486 error = DoEvent(T_CONN_req); 487 } else { 488 (tpcb->tp_nlproto->nlp_pcbdisc)(tpcb->tp_npcb); 489 error = EISCONN; 490 } 491 IFPERF(tpcb) 492 u_int lsufx, fsufx; 493 lsufx = *(u_short *)(tpcb->tp_lsuffix); 494 fsufx = *(u_short *)(tpcb->tp_fsuffix); 495 496 tpmeas(tpcb->tp_lref, 497 TPtime_open | (tpcb->tp_xtd_format << 4), 498 &time, lsufx, fsufx, tpcb->tp_fref); 499 ENDPERF 500 break; 501 502 case PRU_ACCEPT: 503 (tpcb->tp_nlproto->nlp_getnetaddr)(tpcb->tp_npcb, nam, TP_FOREIGN); 504 IFDEBUG(D_REQUEST) 505 printf("ACCEPT PEERADDDR:"); 506 dump_buf(mtod(nam, char *), nam->m_len); 507 ENDDEBUG 508 IFPERF(tpcb) 509 u_int lsufx, fsufx; 510 lsufx = *(u_short *)(tpcb->tp_lsuffix); 511 fsufx = *(u_short *)(tpcb->tp_fsuffix); 512 513 tpmeas(tpcb->tp_lref, TPtime_open, 514 &time, lsufx, fsufx, tpcb->tp_fref); 515 ENDPERF 516 break; 517 518 case PRU_RCVD: 519 if (so->so_state & SS_ISCONFIRMING) { 520 if (tpcb->tp_state == TP_CONFIRMING) 521 error = tp_confirm(tpcb); 522 break; 523 } 524 IFTRACE(D_DATA) 525 tptraceTPCB(TPPTmisc, 526 "RCVD BF: lcredit sent_lcdt cc hiwat \n", 527 tpcb->tp_lcredit, tpcb->tp_sent_lcdt, 528 so->so_rcv.sb_cc, so->so_rcv.sb_hiwat); 529 LOCAL_CREDIT(tpcb); 530 tptraceTPCB(TPPTmisc, 531 "PRU_RCVD AF sbspace lcredit hiwat cc", 532 sbspace(&so->so_rcv), tpcb->tp_lcredit, 533 so->so_rcv.sb_cc, so->so_rcv.sb_hiwat); 534 ENDTRACE 535 IFDEBUG(D_REQUEST) 536 printf("RCVD: cc %d space %d hiwat %d\n", 537 so->so_rcv.sb_cc, sbspace(&so->so_rcv), 538 so->so_rcv.sb_hiwat); 539 ENDDEBUG 540 if (((int)nam) & MSG_OOB) 541 error = DoEvent(T_USR_Xrcvd); 542 else 543 error = DoEvent(T_USR_rcvd); 544 break; 545 546 case PRU_RCVOOB: 547 if ((so->so_state & SS_ISCONNECTED) == 0) { 548 error = ENOTCONN; 549 break; 550 } 551 if (! tpcb->tp_xpd_service) { 552 error = EOPNOTSUPP; 553 break; 554 } 555 /* kludge - nam is really flags here */ 556 error = tp_rcvoob(tpcb, so, m, outflags, (int)nam); 557 break; 558 559 case PRU_SEND: 560 case PRU_SENDOOB: 561 if (controlp) { 562 error = tp_snd_control(controlp, so, &m); 563 controlp = NULL; 564 if (error) 565 break; 566 } 567 if ((so->so_state & SS_ISCONFIRMING) && 568 (tpcb->tp_state == TP_CONFIRMING) && 569 (error = tp_confirm(tpcb))) 570 break; 571 if (req == PRU_SENDOOB) { 572 error = (tpcb->tp_xpd_service == 0) ? 573 EOPNOTSUPP : tp_sendoob(tpcb, so, m, outflags); 574 break; 575 } 576 if (m == 0) 577 break; 578 if (m->m_flags & M_EOR) { 579 eotsdu = 1; 580 m->m_flags &= ~M_EOR; 581 } 582 if (eotsdu == 0 && m->m_pkthdr.len == 0) 583 break; 584 if (tpcb->tp_state != TP_AKWAIT && tpcb->tp_state != TP_OPEN) { 585 error = ENOTCONN; 586 break; 587 } 588 /* 589 * The protocol machine copies mbuf chains, 590 * prepends headers, assigns seq numbers, and 591 * puts the packets on the device. 592 * When they are acked they are removed from the socket buf. 593 * 594 * sosend calls this up until sbspace goes negative. 595 * Sbspace may be made negative by appending this mbuf chain, 596 * possibly by a whole cluster. 597 */ 598 { 599 /* 600 * Could have eotsdu and no data.(presently MUST have 601 * an mbuf though, even if its length == 0) 602 */ 603 int totlen = m->m_pkthdr.len; 604 struct sockbuf *sb = &so->so_snd; 605 IFPERF(tpcb) 606 PStat(tpcb, Nb_from_sess) += totlen; 607 tpmeas(tpcb->tp_lref, TPtime_from_session, 0, 0, 608 PStat(tpcb, Nb_from_sess), totlen); 609 ENDPERF 610 IFDEBUG(D_SYSCALL) 611 printf( 612 "PRU_SEND: eot %d before sbappend 0x%x len 0x%x to sb @ 0x%x\n", 613 eotsdu, m, totlen, sb); 614 dump_mbuf(sb->sb_mb, "so_snd.sb_mb"); 615 dump_mbuf(m, "m : to be added"); 616 ENDDEBUG 617 tp_packetize(tpcb, m, eotsdu); 618 IFDEBUG(D_SYSCALL) 619 printf("PRU_SEND: eot %d after sbappend 0x%x\n", eotsdu, m); 620 dump_mbuf(sb->sb_mb, "so_snd.sb_mb"); 621 ENDDEBUG 622 if (tpcb->tp_state == TP_OPEN) 623 error = DoEvent(T_DATA_req); 624 IFDEBUG(D_SYSCALL) 625 printf("PRU_SEND: after driver error 0x%x \n",error); 626 printf("so_snd 0x%x cc 0t%d mbcnt 0t%d\n", 627 sb, sb->sb_cc, sb->sb_mbcnt); 628 dump_mbuf(sb->sb_mb, "so_snd.sb_mb after driver"); 629 ENDDEBUG 630 } 631 break; 632 633 case PRU_SOCKADDR: 634 (tpcb->tp_nlproto->nlp_getnetaddr)(tpcb->tp_npcb, nam, TP_LOCAL); 635 break; 636 637 case PRU_PEERADDR: 638 (tpcb->tp_nlproto->nlp_getnetaddr)(tpcb->tp_npcb, nam, TP_FOREIGN); 639 break; 640 641 case PRU_CONTROL: 642 error = EOPNOTSUPP; 643 break; 644 645 case PRU_PROTOSEND: 646 case PRU_PROTORCV: 647 case PRU_SENSE: 648 case PRU_SLOWTIMO: 649 case PRU_FASTTIMO: 650 error = EOPNOTSUPP; 651 break; 652 653 default: 654 #ifdef ARGO_DEBUG 655 printf("tp_usrreq UNKNOWN PRU %d\n", req); 656 #endif ARGO_DEBUG 657 error = EOPNOTSUPP; 658 } 659 660 IFDEBUG(D_REQUEST) 661 printf("%s, so 0x%x, tpcb 0x%x, error %d, state %d\n", 662 "returning from tp_usrreq", so, tpcb, error, 663 tpcb ? tpcb->tp_state : 0); 664 ENDDEBUG 665 IFTRACE(D_REQUEST) 666 tptraceTPCB(TPPTusrreq, "END req so m state [", req, so, m, 667 tpcb ? tpcb->tp_state : 0); 668 ENDTRACE 669 if (controlp) { 670 m_freem(controlp); 671 printf("control data unexpectedly retained in tp_usrreq()"); 672 } 673 splx(s); 674 return error; 675 } 676 tp_ltrace(so, uio) 677 struct socket *so; 678 struct uio *uio; 679 { 680 IFTRACE(D_DATA) 681 register struct tp_pcb *tpcb = sototpcb(so); 682 if (tpcb) { 683 tptraceTPCB(TPPTmisc, "sosend so resid iovcnt", so, 684 uio->uio_resid, uio->uio_iovcnt, 0); 685 } 686 ENDTRACE 687 } 688 689 tp_confirm(tpcb) 690 register struct tp_pcb *tpcb; 691 { 692 struct tp_event E; 693 if (tpcb->tp_state == TP_CONFIRMING) 694 return DoEvent(T_ACPT_req); 695 printf("Tp confirm called when not confirming; tpcb 0x%x, state 0x%x\n", 696 tpcb, tpcb->tp_state); 697 return 0; 698 } 699 700 /* 701 * Process control data sent with sendmsg() 702 */ 703 tp_snd_control(m, so, data) 704 struct mbuf *m; 705 struct socket *so; 706 register struct mbuf **data; 707 { 708 register struct cmsghdr *ch; 709 int error = 0; 710 711 if (m && m->m_len) { 712 ch = mtod(m, struct cmsghdr *); 713 m->m_len -= sizeof (*ch); 714 m->m_data += sizeof (*ch); 715 error = tp_ctloutput(PRCO_SETOPT, 716 so, ch->cmsg_level, ch->cmsg_type, &m); 717 if (ch->cmsg_type == TPOPT_DISC_DATA) { 718 if (data && *data) { 719 m_freem(*data); 720 *data = 0; 721 } 722 error = tp_usrreq(so, PRU_DISCONNECT, (struct mbuf *)0, 723 (caddr_t)0, (struct mbuf *)0); 724 } 725 } 726 if (m) 727 m_freem(m); 728 return error; 729 } 730