| 1 | /* $NetBSD: natm.c,v 1.5 1996/11/09 03:26:26 chuck Exp $ */ |
| 2 | /* $FreeBSD: src/sys/netnatm/natm.c,v 1.12 2000/02/13 03:32:03 peter Exp $ */ |
| 3 | /* $DragonFly: src/sys/netproto/natm/natm.c,v 1.7 2003/11/08 07:57:52 dillon Exp $ */ |
| 4 | |
| 5 | /* |
| 6 | * |
| 7 | * Copyright (c) 1996 Charles D. Cranor and Washington University. |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * 3. All advertising materials mentioning features or use of this software |
| 19 | * must display the following acknowledgement: |
| 20 | * This product includes software developed by Charles D. Cranor and |
| 21 | * Washington University. |
| 22 | * 4. The name of the author may not be used to endorse or promote products |
| 23 | * derived from this software without specific prior written permission. |
| 24 | * |
| 25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 26 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 27 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 28 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 29 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 30 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 31 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 32 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 33 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 34 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 35 | */ |
| 36 | |
| 37 | /* |
| 38 | * natm.c: native mode ATM access (both aal0 and aal5). |
| 39 | */ |
| 40 | |
| 41 | #include <sys/param.h> |
| 42 | #include <sys/systm.h> |
| 43 | #include <sys/kernel.h> |
| 44 | #include <sys/sockio.h> |
| 45 | #include <sys/protosw.h> |
| 46 | #include <sys/malloc.h> |
| 47 | #include <sys/mbuf.h> |
| 48 | #include <sys/socket.h> |
| 49 | #include <sys/socketvar.h> |
| 50 | |
| 51 | #include <net/if.h> |
| 52 | #include <net/if_atm.h> |
| 53 | #include <net/netisr.h> |
| 54 | |
| 55 | #include <netinet/in.h> |
| 56 | |
| 57 | #include "natm.h" |
| 58 | |
| 59 | static u_long natm5_sendspace = 16*1024; |
| 60 | static u_long natm5_recvspace = 16*1024; |
| 61 | |
| 62 | static u_long natm0_sendspace = 16*1024; |
| 63 | static u_long natm0_recvspace = 16*1024; |
| 64 | |
| 65 | /* |
| 66 | * user requests |
| 67 | */ |
| 68 | #ifdef FREEBSD_USRREQS |
| 69 | /* |
| 70 | * FreeBSD new usrreqs supersedes pr_usrreq. |
| 71 | */ |
| 72 | static int natm_usr_attach (struct socket *, int, struct thread *); |
| 73 | static int natm_usr_detach (struct socket *); |
| 74 | static int natm_usr_connect (struct socket *, struct sockaddr *, |
| 75 | struct thread *); |
| 76 | static int natm_usr_disconnect (struct socket *); |
| 77 | static int natm_usr_shutdown (struct socket *); |
| 78 | static int natm_usr_send (struct socket *, int, struct mbuf *, |
| 79 | struct sockaddr *, struct mbuf *, |
| 80 | struct thread *); |
| 81 | static int natm_usr_peeraddr (struct socket *, struct sockaddr **); |
| 82 | static int natm_usr_control (struct socket *, u_long, caddr_t, |
| 83 | struct ifnet *, struct thread *); |
| 84 | static int natm_usr_abort (struct socket *); |
| 85 | static int natm_usr_bind (struct socket *, struct sockaddr *, |
| 86 | struct thread *); |
| 87 | static int natm_usr_sockaddr (struct socket *, struct sockaddr **); |
| 88 | |
| 89 | static int |
| 90 | natm_usr_attach(struct socket *so, int proto, struct thread *td) |
| 91 | { |
| 92 | struct natmpcb *npcb; |
| 93 | int error = 0; |
| 94 | int s = SPLSOFTNET(); |
| 95 | |
| 96 | npcb = (struct natmpcb *) so->so_pcb; |
| 97 | |
| 98 | if (npcb) { |
| 99 | error = EISCONN; |
| 100 | goto out; |
| 101 | } |
| 102 | |
| 103 | if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
| 104 | if (proto == PROTO_NATMAAL5) |
| 105 | error = soreserve(so, natm5_sendspace, natm5_recvspace); |
| 106 | else |
| 107 | error = soreserve(so, natm0_sendspace, natm0_recvspace); |
| 108 | if (error) |
| 109 | goto out; |
| 110 | } |
| 111 | |
| 112 | so->so_pcb = (caddr_t) (npcb = npcb_alloc(M_WAITOK)); |
| 113 | npcb->npcb_socket = so; |
| 114 | out: |
| 115 | splx(s); |
| 116 | return (error); |
| 117 | } |
| 118 | |
| 119 | static int |
| 120 | natm_usr_detach(struct socket *so) |
| 121 | { |
| 122 | struct natmpcb *npcb; |
| 123 | int error = 0; |
| 124 | int s = SPLSOFTNET(); |
| 125 | |
| 126 | npcb = (struct natmpcb *) so->so_pcb; |
| 127 | if (npcb == NULL) { |
| 128 | error = EINVAL; |
| 129 | goto out; |
| 130 | } |
| 131 | |
| 132 | /* |
| 133 | * we turn on 'drain' *before* we sofree. |
| 134 | */ |
| 135 | npcb_free(npcb, NPCB_DESTROY); /* drain */ |
| 136 | so->so_pcb = NULL; |
| 137 | sofree(so); |
| 138 | out: |
| 139 | splx(s); |
| 140 | return (error); |
| 141 | } |
| 142 | |
| 143 | static int |
| 144 | natm_usr_connect(struct socket *so, struct sockaddr *nam, struct thread *td) |
| 145 | { |
| 146 | struct natmpcb *npcb; |
| 147 | struct sockaddr_natm *snatm; |
| 148 | struct atm_pseudoioctl api; |
| 149 | struct ifnet *ifp; |
| 150 | int error = 0; |
| 151 | int s2, s = SPLSOFTNET(); |
| 152 | int proto = so->so_proto->pr_protocol; |
| 153 | |
| 154 | npcb = (struct natmpcb *) so->so_pcb; |
| 155 | if (npcb == NULL) { |
| 156 | error = EINVAL; |
| 157 | goto out; |
| 158 | } |
| 159 | |
| 160 | /* |
| 161 | * validate nam and npcb |
| 162 | */ |
| 163 | |
| 164 | snatm = (struct sockaddr_natm *)nam; |
| 165 | if (snatm->snatm_len != sizeof(*snatm) || |
| 166 | (npcb->npcb_flags & NPCB_FREE) == 0) { |
| 167 | error = EINVAL; |
| 168 | goto out; |
| 169 | } |
| 170 | if (snatm->snatm_family != AF_NATM) { |
| 171 | error = EAFNOSUPPORT; |
| 172 | goto out; |
| 173 | } |
| 174 | |
| 175 | snatm->snatm_if[IFNAMSIZ-1] = '\0'; /* XXX ensure null termination |
| 176 | since ifunit() uses strcmp */ |
| 177 | |
| 178 | /* |
| 179 | * convert interface string to ifp, validate. |
| 180 | */ |
| 181 | |
| 182 | ifp = ifunit(snatm->snatm_if); |
| 183 | if (ifp == NULL || (ifp->if_flags & IFF_RUNNING) == 0) { |
| 184 | error = ENXIO; |
| 185 | goto out; |
| 186 | } |
| 187 | if (ifp->if_output != atm_output) { |
| 188 | error = EAFNOSUPPORT; |
| 189 | goto out; |
| 190 | } |
| 191 | |
| 192 | /* |
| 193 | * register us with the NATM PCB layer |
| 194 | */ |
| 195 | |
| 196 | if (npcb_add(npcb, ifp, snatm->snatm_vci, snatm->snatm_vpi) != npcb) { |
| 197 | error = EADDRINUSE; |
| 198 | goto out; |
| 199 | } |
| 200 | |
| 201 | /* |
| 202 | * enable rx |
| 203 | */ |
| 204 | |
| 205 | ATM_PH_FLAGS(&api.aph) = (proto == PROTO_NATMAAL5) ? ATM_PH_AAL5 : 0; |
| 206 | ATM_PH_VPI(&api.aph) = npcb->npcb_vpi; |
| 207 | ATM_PH_SETVCI(&api.aph, npcb->npcb_vci); |
| 208 | api.rxhand = npcb; |
| 209 | s2 = splimp(); |
| 210 | if (ifp->if_ioctl == NULL || |
| 211 | ifp->if_ioctl(ifp, SIOCATMENA, (caddr_t) &api) != 0) { |
| 212 | splx(s2); |
| 213 | npcb_free(npcb, NPCB_REMOVE); |
| 214 | error = EIO; |
| 215 | goto out; |
| 216 | } |
| 217 | splx(s2); |
| 218 | |
| 219 | soisconnected(so); |
| 220 | |
| 221 | out: |
| 222 | splx(s); |
| 223 | return (error); |
| 224 | } |
| 225 | |
| 226 | static int |
| 227 | natm_usr_disconnect(struct socket *so) |
| 228 | { |
| 229 | struct natmpcb *npcb; |
| 230 | struct atm_pseudoioctl api; |
| 231 | struct ifnet *ifp; |
| 232 | int error = 0; |
| 233 | int s2, s = SPLSOFTNET(); |
| 234 | |
| 235 | npcb = (struct natmpcb *) so->so_pcb; |
| 236 | if (npcb == NULL) { |
| 237 | error = EINVAL; |
| 238 | goto out; |
| 239 | } |
| 240 | |
| 241 | if ((npcb->npcb_flags & NPCB_CONNECTED) == 0) { |
| 242 | printf("natm: disconnected check\n"); |
| 243 | error = EIO; |
| 244 | goto out; |
| 245 | } |
| 246 | ifp = npcb->npcb_ifp; |
| 247 | |
| 248 | /* |
| 249 | * disable rx |
| 250 | */ |
| 251 | |
| 252 | ATM_PH_FLAGS(&api.aph) = ATM_PH_AAL5; |
| 253 | ATM_PH_VPI(&api.aph) = npcb->npcb_vpi; |
| 254 | ATM_PH_SETVCI(&api.aph, npcb->npcb_vci); |
| 255 | api.rxhand = npcb; |
| 256 | s2 = splimp(); |
| 257 | if (ifp->if_ioctl != NULL) |
| 258 | ifp->if_ioctl(ifp, SIOCATMDIS, (caddr_t) &api); |
| 259 | splx(s2); |
| 260 | |
| 261 | npcb_free(npcb, NPCB_REMOVE); |
| 262 | soisdisconnected(so); |
| 263 | |
| 264 | out: |
| 265 | splx(s); |
| 266 | return (error); |
| 267 | } |
| 268 | |
| 269 | static int |
| 270 | natm_usr_shutdown(struct socket *so) |
| 271 | { |
| 272 | socantsendmore(so); |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | static int |
| 277 | natm_usr_send(struct socket *so, int flags, struct mbuf *m, |
| 278 | struct sockaddr *nam, struct mbuf *control, struct thread *td) |
| 279 | { |
| 280 | struct natmpcb *npcb; |
| 281 | struct atm_pseudohdr *aph; |
| 282 | int error = 0; |
| 283 | int s = SPLSOFTNET(); |
| 284 | int proto = so->so_proto->pr_protocol; |
| 285 | |
| 286 | npcb = (struct natmpcb *) so->so_pcb; |
| 287 | if (npcb == NULL) { |
| 288 | error = EINVAL; |
| 289 | goto out; |
| 290 | } |
| 291 | |
| 292 | if (control && control->m_len) { |
| 293 | m_freem(control); |
| 294 | m_freem(m); |
| 295 | error = EINVAL; |
| 296 | goto out; |
| 297 | } |
| 298 | |
| 299 | /* |
| 300 | * send the data. we must put an atm_pseudohdr on first |
| 301 | */ |
| 302 | |
| 303 | M_PREPEND(m, sizeof(*aph), M_WAITOK); |
| 304 | if (m == NULL) { |
| 305 | error = ENOBUFS; |
| 306 | goto out; |
| 307 | } |
| 308 | aph = mtod(m, struct atm_pseudohdr *); |
| 309 | ATM_PH_VPI(aph) = npcb->npcb_vpi; |
| 310 | ATM_PH_SETVCI(aph, npcb->npcb_vci); |
| 311 | ATM_PH_FLAGS(aph) = (proto == PROTO_NATMAAL5) ? ATM_PH_AAL5 : 0; |
| 312 | |
| 313 | error = atm_output(npcb->npcb_ifp, m, NULL, NULL); |
| 314 | |
| 315 | out: |
| 316 | splx(s); |
| 317 | return (error); |
| 318 | } |
| 319 | |
| 320 | static int |
| 321 | natm_usr_peeraddr(struct socket *so, struct sockaddr **nam) |
| 322 | { |
| 323 | struct natmpcb *npcb; |
| 324 | struct sockaddr_natm *snatm, ssnatm; |
| 325 | int error = 0; |
| 326 | int s = SPLSOFTNET(); |
| 327 | |
| 328 | npcb = (struct natmpcb *) so->so_pcb; |
| 329 | if (npcb == NULL) { |
| 330 | error = EINVAL; |
| 331 | goto out; |
| 332 | } |
| 333 | |
| 334 | snatm = &ssnatm; |
| 335 | bzero(snatm, sizeof(*snatm)); |
| 336 | snatm->snatm_len = sizeof(*snatm); |
| 337 | snatm->snatm_family = AF_NATM; |
| 338 | snprintf(snatm->snatm_if, sizeof(snatm->snatm_if), |
| 339 | "%s%d", npcb->npcb_ifp->if_name, npcb->npcb_ifp->if_unit); |
| 340 | snatm->snatm_vci = npcb->npcb_vci; |
| 341 | snatm->snatm_vpi = npcb->npcb_vpi; |
| 342 | *nam = dup_sockaddr((struct sockaddr *)snatm, 0); |
| 343 | |
| 344 | out: |
| 345 | splx(s); |
| 346 | return (error); |
| 347 | } |
| 348 | |
| 349 | static int |
| 350 | natm_usr_control(struct socket *so, u_long cmd, caddr_t arg, |
| 351 | struct ifnet *ifp, struct thread *td) |
| 352 | { |
| 353 | struct natmpcb *npcb; |
| 354 | struct atm_rawioctl ario; |
| 355 | int error = 0; |
| 356 | int s = SPLSOFTNET(); |
| 357 | |
| 358 | npcb = (struct natmpcb *) so->so_pcb; |
| 359 | if (npcb == NULL) { |
| 360 | error = EINVAL; |
| 361 | goto out; |
| 362 | } |
| 363 | |
| 364 | /* |
| 365 | * raw atm ioctl. comes in as a SIOCRAWATM. we convert it to |
| 366 | * SIOCXRAWATM and pass it to the driver. |
| 367 | */ |
| 368 | if (cmd == SIOCRAWATM) { |
| 369 | if (npcb->npcb_ifp == NULL) { |
| 370 | error = ENOTCONN; |
| 371 | goto out; |
| 372 | } |
| 373 | ario.npcb = npcb; |
| 374 | ario.rawvalue = *((int *)arg); |
| 375 | error = npcb->npcb_ifp->if_ioctl(npcb->npcb_ifp, |
| 376 | SIOCXRAWATM, (caddr_t) &ario); |
| 377 | if (!error) { |
| 378 | if (ario.rawvalue) |
| 379 | npcb->npcb_flags |= NPCB_RAW; |
| 380 | else |
| 381 | npcb->npcb_flags &= ~(NPCB_RAW); |
| 382 | } |
| 383 | } |
| 384 | else |
| 385 | error = EOPNOTSUPP; |
| 386 | |
| 387 | out: |
| 388 | splx(s); |
| 389 | return (error); |
| 390 | } |
| 391 | |
| 392 | static int |
| 393 | natm_usr_abort(struct socket *so) |
| 394 | { |
| 395 | return natm_usr_shutdown(so); |
| 396 | } |
| 397 | |
| 398 | static int |
| 399 | natm_usr_bind(struct socket *so, struct sockaddr *nam, struct thread *td) |
| 400 | { |
| 401 | return EOPNOTSUPP; |
| 402 | } |
| 403 | |
| 404 | static int |
| 405 | natm_usr_sockaddr(struct socket *so, struct sockaddr **nam) |
| 406 | { |
| 407 | return EOPNOTSUPP; |
| 408 | } |
| 409 | |
| 410 | /* xxx - should be const */ |
| 411 | struct pr_usrreqs natm_usrreqs = { |
| 412 | natm_usr_abort, pru_accept_notsupp, natm_usr_attach, natm_usr_bind, |
| 413 | natm_usr_connect, pru_connect2_notsupp, natm_usr_control, |
| 414 | natm_usr_detach, natm_usr_disconnect, pru_listen_notsupp, |
| 415 | natm_usr_peeraddr, pru_rcvd_notsupp, pru_rcvoob_notsupp, |
| 416 | natm_usr_send, pru_sense_null, natm_usr_shutdown, |
| 417 | natm_usr_sockaddr, sosend, soreceive, sopoll |
| 418 | }; |
| 419 | |
| 420 | #else /* !FREEBSD_USRREQS */ |
| 421 | |
| 422 | #if defined(__NetBSD__) || defined(__OpenBSD__) |
| 423 | int natm_usrreq(so, req, m, nam, control, p) |
| 424 | #elif defined(__FreeBSD__) |
| 425 | int natm_usrreq(so, req, m, nam, control) |
| 426 | #endif |
| 427 | |
| 428 | struct socket *so; |
| 429 | int req; |
| 430 | struct mbuf *m, *nam, *control; |
| 431 | #if defined(__NetBSD__) || defined(__OpenBSD__) |
| 432 | struct proc *p; |
| 433 | #endif |
| 434 | |
| 435 | { |
| 436 | int error = 0, s, s2; |
| 437 | struct natmpcb *npcb; |
| 438 | struct sockaddr_natm *snatm; |
| 439 | struct atm_pseudoioctl api; |
| 440 | struct atm_pseudohdr *aph; |
| 441 | struct atm_rawioctl ario; |
| 442 | struct ifnet *ifp; |
| 443 | int proto = so->so_proto->pr_protocol; |
| 444 | |
| 445 | s = SPLSOFTNET(); |
| 446 | |
| 447 | npcb = (struct natmpcb *) so->so_pcb; |
| 448 | |
| 449 | if (npcb == NULL && req != PRU_ATTACH) { |
| 450 | error = EINVAL; |
| 451 | goto done; |
| 452 | } |
| 453 | |
| 454 | |
| 455 | switch (req) { |
| 456 | case PRU_ATTACH: /* attach protocol to up */ |
| 457 | |
| 458 | if (npcb) { |
| 459 | error = EISCONN; |
| 460 | break; |
| 461 | } |
| 462 | |
| 463 | if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
| 464 | if (proto == PROTO_NATMAAL5) |
| 465 | error = soreserve(so, natm5_sendspace, natm5_recvspace); |
| 466 | else |
| 467 | error = soreserve(so, natm0_sendspace, natm0_recvspace); |
| 468 | if (error) |
| 469 | break; |
| 470 | } |
| 471 | |
| 472 | so->so_pcb = (caddr_t) (npcb = npcb_alloc(M_WAITOK)); |
| 473 | npcb->npcb_socket = so; |
| 474 | |
| 475 | break; |
| 476 | |
| 477 | case PRU_DETACH: /* detach protocol from up */ |
| 478 | |
| 479 | /* |
| 480 | * we turn on 'drain' *before* we sofree. |
| 481 | */ |
| 482 | |
| 483 | npcb_free(npcb, NPCB_DESTROY); /* drain */ |
| 484 | so->so_pcb = NULL; |
| 485 | sofree(so); |
| 486 | |
| 487 | break; |
| 488 | |
| 489 | case PRU_CONNECT: /* establish connection to peer */ |
| 490 | |
| 491 | /* |
| 492 | * validate nam and npcb |
| 493 | */ |
| 494 | |
| 495 | if (nam->m_len != sizeof(*snatm)) { |
| 496 | error = EINVAL; |
| 497 | break; |
| 498 | } |
| 499 | snatm = mtod(nam, struct sockaddr_natm *); |
| 500 | if (snatm->snatm_len != sizeof(*snatm) || |
| 501 | (npcb->npcb_flags & NPCB_FREE) == 0) { |
| 502 | error = EINVAL; |
| 503 | break; |
| 504 | } |
| 505 | if (snatm->snatm_family != AF_NATM) { |
| 506 | error = EAFNOSUPPORT; |
| 507 | break; |
| 508 | } |
| 509 | |
| 510 | snatm->snatm_if[IFNAMSIZ-1] = '\0'; /* XXX ensure null termination |
| 511 | since ifunit() uses strcmp */ |
| 512 | |
| 513 | /* |
| 514 | * convert interface string to ifp, validate. |
| 515 | */ |
| 516 | |
| 517 | ifp = ifunit(snatm->snatm_if); |
| 518 | if (ifp == NULL || (ifp->if_flags & IFF_RUNNING) == 0) { |
| 519 | error = ENXIO; |
| 520 | break; |
| 521 | } |
| 522 | if (ifp->if_output != atm_output) { |
| 523 | error = EAFNOSUPPORT; |
| 524 | break; |
| 525 | } |
| 526 | |
| 527 | |
| 528 | /* |
| 529 | * register us with the NATM PCB layer |
| 530 | */ |
| 531 | |
| 532 | if (npcb_add(npcb, ifp, snatm->snatm_vci, snatm->snatm_vpi) != npcb) { |
| 533 | error = EADDRINUSE; |
| 534 | break; |
| 535 | } |
| 536 | |
| 537 | /* |
| 538 | * enable rx |
| 539 | */ |
| 540 | |
| 541 | ATM_PH_FLAGS(&api.aph) = (proto == PROTO_NATMAAL5) ? ATM_PH_AAL5 : 0; |
| 542 | ATM_PH_VPI(&api.aph) = npcb->npcb_vpi; |
| 543 | ATM_PH_SETVCI(&api.aph, npcb->npcb_vci); |
| 544 | api.rxhand = npcb; |
| 545 | s2 = splimp(); |
| 546 | if (ifp->if_ioctl == NULL || |
| 547 | ifp->if_ioctl(ifp, SIOCATMENA, (caddr_t) &api) != 0) { |
| 548 | splx(s2); |
| 549 | npcb_free(npcb, NPCB_REMOVE); |
| 550 | error = EIO; |
| 551 | break; |
| 552 | } |
| 553 | splx(s2); |
| 554 | |
| 555 | soisconnected(so); |
| 556 | |
| 557 | break; |
| 558 | |
| 559 | case PRU_DISCONNECT: /* disconnect from peer */ |
| 560 | |
| 561 | if ((npcb->npcb_flags & NPCB_CONNECTED) == 0) { |
| 562 | printf("natm: disconnected check\n"); |
| 563 | error = EIO; |
| 564 | break; |
| 565 | } |
| 566 | ifp = npcb->npcb_ifp; |
| 567 | |
| 568 | /* |
| 569 | * disable rx |
| 570 | */ |
| 571 | |
| 572 | ATM_PH_FLAGS(&api.aph) = ATM_PH_AAL5; |
| 573 | ATM_PH_VPI(&api.aph) = npcb->npcb_vpi; |
| 574 | ATM_PH_SETVCI(&api.aph, npcb->npcb_vci); |
| 575 | api.rxhand = npcb; |
| 576 | s2 = splimp(); |
| 577 | if (ifp->if_ioctl != NULL) |
| 578 | ifp->if_ioctl(ifp, SIOCATMDIS, (caddr_t) &api); |
| 579 | splx(s2); |
| 580 | |
| 581 | npcb_free(npcb, NPCB_REMOVE); |
| 582 | soisdisconnected(so); |
| 583 | |
| 584 | break; |
| 585 | |
| 586 | case PRU_SHUTDOWN: /* won't send any more data */ |
| 587 | socantsendmore(so); |
| 588 | break; |
| 589 | |
| 590 | case PRU_SEND: /* send this data */ |
| 591 | if (control && control->m_len) { |
| 592 | m_freem(control); |
| 593 | m_freem(m); |
| 594 | error = EINVAL; |
| 595 | break; |
| 596 | } |
| 597 | |
| 598 | /* |
| 599 | * send the data. we must put an atm_pseudohdr on first |
| 600 | */ |
| 601 | |
| 602 | M_PREPEND(m, sizeof(*aph), M_WAITOK); |
| 603 | if (m == NULL) { |
| 604 | error = ENOBUFS; |
| 605 | break; |
| 606 | } |
| 607 | aph = mtod(m, struct atm_pseudohdr *); |
| 608 | ATM_PH_VPI(aph) = npcb->npcb_vpi; |
| 609 | ATM_PH_SETVCI(aph, npcb->npcb_vci); |
| 610 | ATM_PH_FLAGS(aph) = (proto == PROTO_NATMAAL5) ? ATM_PH_AAL5 : 0; |
| 611 | |
| 612 | error = atm_output(npcb->npcb_ifp, m, NULL, NULL); |
| 613 | |
| 614 | break; |
| 615 | |
| 616 | case PRU_SENSE: /* return status into m */ |
| 617 | /* return zero? */ |
| 618 | break; |
| 619 | |
| 620 | case PRU_PEERADDR: /* fetch peer's address */ |
| 621 | snatm = mtod(nam, struct sockaddr_natm *); |
| 622 | bzero(snatm, sizeof(*snatm)); |
| 623 | nam->m_len = snatm->snatm_len = sizeof(*snatm); |
| 624 | snatm->snatm_family = AF_NATM; |
| 625 | #if defined(__NetBSD__) || defined(__OpenBSD__) |
| 626 | bcopy(npcb->npcb_ifp->if_xname, snatm->snatm_if, sizeof(snatm->snatm_if)); |
| 627 | #elif defined(__FreeBSD__) |
| 628 | snprintf(snatm->snatm_if, sizeof(snatm->snatm_if), |
| 629 | "%s%d", npcb->npcb_ifp->if_name, npcb->npcb_ifp->if_unit); |
| 630 | #endif |
| 631 | snatm->snatm_vci = npcb->npcb_vci; |
| 632 | snatm->snatm_vpi = npcb->npcb_vpi; |
| 633 | break; |
| 634 | |
| 635 | case PRU_CONTROL: /* control operations on protocol */ |
| 636 | /* |
| 637 | * raw atm ioctl. comes in as a SIOCRAWATM. we convert it to |
| 638 | * SIOCXRAWATM and pass it to the driver. |
| 639 | */ |
| 640 | if ((u_long)m == SIOCRAWATM) { |
| 641 | if (npcb->npcb_ifp == NULL) { |
| 642 | error = ENOTCONN; |
| 643 | break; |
| 644 | } |
| 645 | ario.npcb = npcb; |
| 646 | ario.rawvalue = *((int *)nam); |
| 647 | error = npcb->npcb_ifp->if_ioctl(npcb->npcb_ifp, |
| 648 | SIOCXRAWATM, (caddr_t) &ario); |
| 649 | if (!error) { |
| 650 | if (ario.rawvalue) |
| 651 | npcb->npcb_flags |= NPCB_RAW; |
| 652 | else |
| 653 | npcb->npcb_flags &= ~(NPCB_RAW); |
| 654 | } |
| 655 | |
| 656 | break; |
| 657 | } |
| 658 | |
| 659 | error = EOPNOTSUPP; |
| 660 | break; |
| 661 | |
| 662 | case PRU_BIND: /* bind socket to address */ |
| 663 | case PRU_LISTEN: /* listen for connection */ |
| 664 | case PRU_ACCEPT: /* accept connection from peer */ |
| 665 | case PRU_CONNECT2: /* connect two sockets */ |
| 666 | case PRU_ABORT: /* abort (fast DISCONNECT, DETATCH) */ |
| 667 | /* (only happens if LISTEN socket) */ |
| 668 | case PRU_RCVD: /* have taken data; more room now */ |
| 669 | case PRU_FASTTIMO: /* 200ms timeout */ |
| 670 | case PRU_SLOWTIMO: /* 500ms timeout */ |
| 671 | case PRU_RCVOOB: /* retrieve out of band data */ |
| 672 | case PRU_SENDOOB: /* send out of band data */ |
| 673 | case PRU_PROTORCV: /* receive from below */ |
| 674 | case PRU_PROTOSEND: /* send to below */ |
| 675 | case PRU_SOCKADDR: /* fetch socket's address */ |
| 676 | #ifdef DIAGNOSTIC |
| 677 | printf("natm: PRU #%d unsupported\n", req); |
| 678 | #endif |
| 679 | error = EOPNOTSUPP; |
| 680 | break; |
| 681 | |
| 682 | default: panic("natm usrreq"); |
| 683 | } |
| 684 | |
| 685 | done: |
| 686 | splx(s); |
| 687 | return(error); |
| 688 | } |
| 689 | |
| 690 | #endif /* !FREEBSD_USRREQS */ |
| 691 | |
| 692 | /* |
| 693 | * natm0_sysctl: not used, but here in case we want to add something |
| 694 | * later... |
| 695 | */ |
| 696 | |
| 697 | int natm0_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, |
| 698 | void *newp, size_t newlen) |
| 699 | { |
| 700 | /* All sysctl names at this level are terminal. */ |
| 701 | if (namelen != 1) |
| 702 | return (ENOTDIR); |
| 703 | return (ENOPROTOOPT); |
| 704 | } |
| 705 | |
| 706 | /* |
| 707 | * natm5_sysctl: not used, but here in case we want to add something |
| 708 | * later... |
| 709 | */ |
| 710 | |
| 711 | int natm5_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, |
| 712 | void *newp, size_t newlen) |
| 713 | { |
| 714 | /* All sysctl names at this level are terminal. */ |
| 715 | if (namelen != 1) |
| 716 | return (ENOTDIR); |
| 717 | return (ENOPROTOOPT); |
| 718 | } |
| 719 | |
| 720 | static void natmintr(struct mbuf *); |
| 721 | |
| 722 | #if defined(__FreeBSD__) |
| 723 | static void |
| 724 | netisr_natm_setup(void *dummy __unused) |
| 725 | { |
| 726 | |
| 727 | netisr_register(NETISR_NATM, cpu0_portfn, natmintr); |
| 728 | } |
| 729 | SYSINIT(natm_setup, SI_SUB_CPU, SI_ORDER_ANY, netisr_natm_setup, NULL); |
| 730 | #endif |
| 731 | |
| 732 | void |
| 733 | natm_init() |
| 734 | { |
| 735 | LIST_INIT(&natm_pcbs); |
| 736 | |
| 737 | netisr_register(NETISR_NATM, cpu0_portfn, natmintr); |
| 738 | } |
| 739 | |
| 740 | /* |
| 741 | * natmintr: splsoftnet interrupt |
| 742 | * |
| 743 | * note: we expect a socket pointer in rcvif rather than an interface |
| 744 | * pointer. we can get the interface pointer from the so's PCB if |
| 745 | * we really need it. |
| 746 | */ |
| 747 | static void |
| 748 | natmintr(struct mbuf *m) |
| 749 | { |
| 750 | int s; |
| 751 | struct socket *so; |
| 752 | struct natmpcb *npcb; |
| 753 | |
| 754 | #ifdef DIAGNOSTIC |
| 755 | if ((m->m_flags & M_PKTHDR) == 0) |
| 756 | panic("natmintr no HDR"); |
| 757 | #endif |
| 758 | |
| 759 | npcb = (struct natmpcb *) m->m_pkthdr.rcvif; /* XXX: overloaded */ |
| 760 | so = npcb->npcb_socket; |
| 761 | |
| 762 | s = splimp(); /* could have atm devs @ different levels */ |
| 763 | npcb->npcb_inq--; |
| 764 | splx(s); |
| 765 | |
| 766 | if (npcb->npcb_flags & NPCB_DRAIN) { |
| 767 | m_freem(m); |
| 768 | if (npcb->npcb_inq == 0) |
| 769 | FREE(npcb, M_PCB); /* done! */ |
| 770 | return; |
| 771 | } |
| 772 | |
| 773 | if (npcb->npcb_flags & NPCB_FREE) { |
| 774 | m_freem(m); /* drop */ |
| 775 | return; |
| 776 | } |
| 777 | |
| 778 | #ifdef NEED_TO_RESTORE_IFP |
| 779 | m->m_pkthdr.rcvif = npcb->npcb_ifp; |
| 780 | #else |
| 781 | #ifdef DIAGNOSTIC |
| 782 | m->m_pkthdr.rcvif = NULL; /* null it out to be safe */ |
| 783 | #endif |
| 784 | #endif |
| 785 | |
| 786 | if (sbspace(&so->so_rcv) > m->m_pkthdr.len || |
| 787 | ((npcb->npcb_flags & NPCB_RAW) != 0 && so->so_rcv.sb_cc < NPCB_RAWCC) ) { |
| 788 | #ifdef NATM_STAT |
| 789 | natm_sookcnt++; |
| 790 | natm_sookbytes += m->m_pkthdr.len; |
| 791 | #endif |
| 792 | sbappendrecord(&so->so_rcv, m); |
| 793 | sorwakeup(so); |
| 794 | } else { |
| 795 | #ifdef NATM_STAT |
| 796 | natm_sodropcnt++; |
| 797 | natm_sodropbytes += m->m_pkthdr.len; |
| 798 | #endif |
| 799 | m_freem(m); |
| 800 | } |
| 801 | } |
| 802 | |