| 1 | /* uipc_socket.c 4.42 82/06/20 */ |
| 2 | |
| 3 | #include "../h/param.h" |
| 4 | #include "../h/systm.h" |
| 5 | #include "../h/dir.h" |
| 6 | #include "../h/user.h" |
| 7 | #include "../h/proc.h" |
| 8 | #include "../h/file.h" |
| 9 | #include "../h/inode.h" |
| 10 | #include "../h/buf.h" |
| 11 | #include "../h/mbuf.h" |
| 12 | #include "../h/protosw.h" |
| 13 | #include "../h/socket.h" |
| 14 | #include "../h/socketvar.h" |
| 15 | #include "../h/stat.h" |
| 16 | #include "../h/ioctl.h" |
| 17 | #include "../net/in.h" |
| 18 | #include "../net/in_systm.h" |
| 19 | #include "../net/route.h" |
| 20 | |
| 21 | /* |
| 22 | * Socket support routines. |
| 23 | * |
| 24 | * DEAL WITH INTERRUPT NOTIFICATION. |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * Create a socket. |
| 29 | */ |
| 30 | socreate(aso, type, asp, asa, options) |
| 31 | struct socket **aso; |
| 32 | int type; |
| 33 | struct sockproto *asp; |
| 34 | struct sockaddr *asa; |
| 35 | int options; |
| 36 | { |
| 37 | register struct protosw *prp; |
| 38 | register struct socket *so; |
| 39 | struct mbuf *m; |
| 40 | int pf, proto, error; |
| 41 | |
| 42 | /* |
| 43 | * Use process standard protocol/protocol family if none |
| 44 | * specified by address argument. |
| 45 | */ |
| 46 | if (asp == 0) { |
| 47 | pf = PF_INET; /* should be u.u_protof */ |
| 48 | proto = 0; |
| 49 | } else { |
| 50 | pf = asp->sp_family; |
| 51 | proto = asp->sp_protocol; |
| 52 | } |
| 53 | |
| 54 | /* |
| 55 | * If protocol specified, look for it, otherwise |
| 56 | * for a protocol of the correct type in the right family. |
| 57 | */ |
| 58 | if (proto) |
| 59 | prp = pffindproto(pf, proto); |
| 60 | else |
| 61 | prp = pffindtype(pf, type); |
| 62 | if (prp == 0) |
| 63 | return (EPROTONOSUPPORT); |
| 64 | |
| 65 | /* |
| 66 | * Get a socket structure. |
| 67 | */ |
| 68 | m = m_getclr(M_WAIT); |
| 69 | if (m == 0) |
| 70 | return (ENOBUFS); |
| 71 | so = mtod(m, struct socket *); |
| 72 | so->so_options = options; |
| 73 | so->so_state = 0; |
| 74 | if (u.u_uid == 0) |
| 75 | so->so_state = SS_PRIV; |
| 76 | |
| 77 | /* |
| 78 | * Attach protocol to socket, initializing |
| 79 | * and reserving resources. |
| 80 | */ |
| 81 | so->so_proto = prp; |
| 82 | error = (*prp->pr_usrreq)(so, PRU_ATTACH, 0, asa); |
| 83 | if (error) { |
| 84 | if (so->so_snd.sb_mbmax || so->so_rcv.sb_mbmax) |
| 85 | panic("socreate"); |
| 86 | so->so_state |= SS_USERGONE; |
| 87 | sofree(so); |
| 88 | return (error); |
| 89 | } |
| 90 | *aso = so; |
| 91 | return (0); |
| 92 | } |
| 93 | |
| 94 | sofree(so) |
| 95 | struct socket *so; |
| 96 | { |
| 97 | |
| 98 | if (so->so_pcb || (so->so_state & SS_USERGONE) == 0) |
| 99 | return; |
| 100 | sbrelease(&so->so_snd); |
| 101 | sbrelease(&so->so_rcv); |
| 102 | (void) m_free(dtom(so)); |
| 103 | } |
| 104 | |
| 105 | /* |
| 106 | * Close a socket on last file table reference removal. |
| 107 | * Initiate disconnect if connected. |
| 108 | * Free socket when disconnect complete. |
| 109 | * |
| 110 | * THIS IS REALLY A UNIX INTERFACE ROUTINE |
| 111 | */ |
| 112 | soclose(so, exiting) |
| 113 | register struct socket *so; |
| 114 | int exiting; |
| 115 | { |
| 116 | int s = splnet(); /* conservative */ |
| 117 | |
| 118 | if (so->so_pcb == 0) |
| 119 | goto discard; |
| 120 | if (exiting) |
| 121 | so->so_options |= SO_KEEPALIVE; |
| 122 | if (so->so_state & SS_ISCONNECTED) { |
| 123 | if ((so->so_state & SS_ISDISCONNECTING) == 0) { |
| 124 | u.u_error = sodisconnect(so, (struct sockaddr *)0); |
| 125 | if (u.u_error) { |
| 126 | if (exiting) |
| 127 | goto drop; |
| 128 | splx(s); |
| 129 | return; |
| 130 | } |
| 131 | } |
| 132 | if ((so->so_options & SO_DONTLINGER) == 0) { |
| 133 | if ((so->so_state & SS_ISDISCONNECTING) && |
| 134 | (so->so_state & SS_NBIO) && |
| 135 | exiting == 0) { |
| 136 | u.u_error = EINPROGRESS; |
| 137 | splx(s); |
| 138 | return; |
| 139 | } |
| 140 | /* should use tsleep here, for at most linger */ |
| 141 | while (so->so_state & SS_ISCONNECTED) |
| 142 | sleep((caddr_t)&so->so_timeo, PZERO+1); |
| 143 | } |
| 144 | } |
| 145 | drop: |
| 146 | if (so->so_pcb) { |
| 147 | u.u_error = (*so->so_proto->pr_usrreq)(so, PRU_DETACH, 0, 0); |
| 148 | if (exiting == 0 && u.u_error) { |
| 149 | splx(s); |
| 150 | return; |
| 151 | } |
| 152 | } |
| 153 | discard: |
| 154 | so->so_state |= SS_USERGONE; |
| 155 | sofree(so); |
| 156 | splx(s); |
| 157 | } |
| 158 | |
| 159 | /*ARGSUSED*/ |
| 160 | sostat(so, sb) |
| 161 | struct socket *so; |
| 162 | struct stat *sb; |
| 163 | { |
| 164 | |
| 165 | bzero((caddr_t)sb, sizeof (*sb)); /* XXX */ |
| 166 | return (0); /* XXX */ |
| 167 | } |
| 168 | |
| 169 | /* |
| 170 | * Accept connection on a socket. |
| 171 | */ |
| 172 | soaccept(so, asa) |
| 173 | struct socket *so; |
| 174 | struct sockaddr *asa; |
| 175 | { |
| 176 | int s = splnet(); |
| 177 | int error; |
| 178 | |
| 179 | if ((so->so_options & SO_ACCEPTCONN) == 0) { |
| 180 | error = EINVAL; /* XXX */ |
| 181 | goto bad; |
| 182 | } |
| 183 | if ((so->so_state & SS_CONNAWAITING) == 0) { |
| 184 | error = ENOTCONN; |
| 185 | goto bad; |
| 186 | } |
| 187 | so->so_state &= ~SS_CONNAWAITING; |
| 188 | error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, 0, (caddr_t)asa); |
| 189 | bad: |
| 190 | splx(s); |
| 191 | return (error); |
| 192 | } |
| 193 | |
| 194 | /* |
| 195 | * Connect socket to a specified address. |
| 196 | * If already connected or connecting, then avoid |
| 197 | * the protocol entry, to keep its job simpler. |
| 198 | */ |
| 199 | soconnect(so, asa) |
| 200 | struct socket *so; |
| 201 | struct sockaddr *asa; |
| 202 | { |
| 203 | int s = splnet(); |
| 204 | int error; |
| 205 | |
| 206 | if (so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING)) { |
| 207 | error = EISCONN; |
| 208 | goto bad; |
| 209 | } |
| 210 | error = (*so->so_proto->pr_usrreq)(so, PRU_CONNECT, 0, (caddr_t)asa); |
| 211 | bad: |
| 212 | splx(s); |
| 213 | return (error); |
| 214 | } |
| 215 | |
| 216 | /* |
| 217 | * Disconnect from a socket. |
| 218 | * Address parameter is from system call for later multicast |
| 219 | * protocols. Check to make sure that connected and no disconnect |
| 220 | * in progress (for protocol's sake), and then invoke protocol. |
| 221 | */ |
| 222 | sodisconnect(so, asa) |
| 223 | struct socket *so; |
| 224 | struct sockaddr *asa; |
| 225 | { |
| 226 | int s = splnet(); |
| 227 | int error; |
| 228 | |
| 229 | if ((so->so_state & SS_ISCONNECTED) == 0) { |
| 230 | error = ENOTCONN; |
| 231 | goto bad; |
| 232 | } |
| 233 | if (so->so_state & SS_ISDISCONNECTING) { |
| 234 | error = EALREADY; |
| 235 | goto bad; |
| 236 | } |
| 237 | error = (*so->so_proto->pr_usrreq)(so, PRU_DISCONNECT, 0, asa); |
| 238 | bad: |
| 239 | splx(s); |
| 240 | return (error); |
| 241 | } |
| 242 | |
| 243 | /* |
| 244 | * Send on a socket. |
| 245 | * If send must go all at once and message is larger than |
| 246 | * send buffering, then hard error. |
| 247 | * Lock against other senders. |
| 248 | * If must go all at once and not enough room now, then |
| 249 | * inform user that this would block and do nothing. |
| 250 | */ |
| 251 | sosend(so, asa) |
| 252 | register struct socket *so; |
| 253 | struct sockaddr *asa; |
| 254 | { |
| 255 | struct mbuf *top = 0; |
| 256 | register struct mbuf *m, **mp = ⊤ |
| 257 | register u_int len; |
| 258 | int error = 0, space, s; |
| 259 | |
| 260 | if (sosendallatonce(so) && u.u_count > so->so_snd.sb_hiwat) |
| 261 | return (EMSGSIZE); |
| 262 | #ifdef notdef |
| 263 | /* NEED TO PREVENT BUSY WAITING IN SELECT FOR WRITING */ |
| 264 | if ((so->so_snd.sb_flags & SB_LOCK) && (so->so_state & SS_NBIO)) |
| 265 | return (EWOULDBLOCK); |
| 266 | #endif |
| 267 | restart: |
| 268 | sblock(&so->so_snd); |
| 269 | #define snderr(errno) { error = errno; splx(s); goto release; } |
| 270 | |
| 271 | again: |
| 272 | s = splnet(); |
| 273 | if (so->so_state & SS_CANTSENDMORE) { |
| 274 | psignal(u.u_procp, SIGPIPE); |
| 275 | snderr(EPIPE); |
| 276 | } |
| 277 | if (so->so_error) { |
| 278 | error = so->so_error; |
| 279 | so->so_error = 0; /* ??? */ |
| 280 | splx(s); |
| 281 | goto release; |
| 282 | } |
| 283 | if ((so->so_state & SS_ISCONNECTED) == 0) { |
| 284 | if (so->so_proto->pr_flags & PR_CONNREQUIRED) |
| 285 | snderr(ENOTCONN); |
| 286 | if (asa == 0) |
| 287 | snderr(EDESTADDRREQ); |
| 288 | } |
| 289 | if (top) { |
| 290 | error = (*so->so_proto->pr_usrreq)(so, PRU_SEND, top, asa); |
| 291 | top = 0; |
| 292 | if (error) { |
| 293 | splx(s); |
| 294 | goto release; |
| 295 | } |
| 296 | mp = ⊤ |
| 297 | } |
| 298 | if (u.u_count == 0) { |
| 299 | splx(s); |
| 300 | goto release; |
| 301 | } |
| 302 | space = sbspace(&so->so_snd); |
| 303 | if (space <= 0 || sosendallatonce(so) && space < u.u_count) { |
| 304 | if (so->so_state & SS_NBIO) |
| 305 | snderr(EWOULDBLOCK); |
| 306 | sbunlock(&so->so_snd); |
| 307 | sbwait(&so->so_snd); |
| 308 | splx(s); |
| 309 | goto restart; |
| 310 | } |
| 311 | splx(s); |
| 312 | while (u.u_count && space > 0) { |
| 313 | MGET(m, 1); |
| 314 | if (m == NULL) { |
| 315 | error = ENOBUFS; /* SIGPIPE? */ |
| 316 | goto release; |
| 317 | } |
| 318 | if (u.u_count >= CLBYTES && space >= CLBYTES) { |
| 319 | register struct mbuf *p; |
| 320 | MCLGET(p, 1); |
| 321 | if (p == 0) |
| 322 | goto nopages; |
| 323 | m->m_off = (int)p - (int)m; |
| 324 | len = CLBYTES; |
| 325 | } else { |
| 326 | nopages: |
| 327 | m->m_off = MMINOFF; |
| 328 | len = MIN(MLEN, u.u_count); |
| 329 | } |
| 330 | iomove(mtod(m, caddr_t), len, B_WRITE); |
| 331 | m->m_len = len; |
| 332 | *mp = m; |
| 333 | mp = &m->m_next; |
| 334 | space = sbspace(&so->so_snd); |
| 335 | } |
| 336 | goto again; |
| 337 | |
| 338 | release: |
| 339 | sbunlock(&so->so_snd); |
| 340 | if (top) |
| 341 | m_freem(top); |
| 342 | return (error); |
| 343 | } |
| 344 | |
| 345 | soreceive(so, asa) |
| 346 | register struct socket *so; |
| 347 | struct sockaddr *asa; |
| 348 | { |
| 349 | register struct mbuf *m, *n; |
| 350 | u_int len; |
| 351 | int eor, s, error = 0, cnt = u.u_count; |
| 352 | caddr_t base = u.u_base; |
| 353 | |
| 354 | restart: |
| 355 | sblock(&so->so_rcv); |
| 356 | s = splnet(); |
| 357 | |
| 358 | #define rcverr(errno) { error = errno; splx(s); goto release; } |
| 359 | if (so->so_rcv.sb_cc == 0) { |
| 360 | if (so->so_error) { |
| 361 | error = so->so_error; |
| 362 | so->so_error = 0; |
| 363 | splx(s); |
| 364 | goto release; |
| 365 | } |
| 366 | if (so->so_state & SS_CANTRCVMORE) { |
| 367 | splx(s); |
| 368 | goto release; |
| 369 | } |
| 370 | if ((so->so_state & SS_ISCONNECTED) == 0 && |
| 371 | (so->so_proto->pr_flags & PR_CONNREQUIRED)) |
| 372 | rcverr(ENOTCONN); |
| 373 | if (so->so_state & SS_NBIO) |
| 374 | rcverr(EWOULDBLOCK); |
| 375 | sbunlock(&so->so_rcv); |
| 376 | sbwait(&so->so_rcv); |
| 377 | splx(s); |
| 378 | goto restart; |
| 379 | } |
| 380 | m = so->so_rcv.sb_mb; |
| 381 | if (m == 0) |
| 382 | panic("receive"); |
| 383 | if (so->so_proto->pr_flags & PR_ADDR) { |
| 384 | if (m->m_len != sizeof (struct sockaddr)) |
| 385 | panic("soreceive addr"); |
| 386 | if (asa) |
| 387 | bcopy(mtod(m, caddr_t), (caddr_t)asa, sizeof (*asa)); |
| 388 | so->so_rcv.sb_cc -= m->m_len; |
| 389 | so->so_rcv.sb_mbcnt -= MSIZE; |
| 390 | m = m_free(m); |
| 391 | if (m == 0) |
| 392 | panic("receive 2"); |
| 393 | so->so_rcv.sb_mb = m; |
| 394 | } |
| 395 | so->so_state &= ~SS_RCVATMARK; |
| 396 | if (so->so_oobmark && cnt > so->so_oobmark) |
| 397 | cnt = so->so_oobmark; |
| 398 | eor = 0; |
| 399 | do { |
| 400 | len = MIN(m->m_len, cnt); |
| 401 | splx(s); |
| 402 | iomove(mtod(m, caddr_t), len, B_READ); |
| 403 | cnt -= len; |
| 404 | s = splnet(); |
| 405 | if (len == m->m_len) { |
| 406 | eor = (int)m->m_act; |
| 407 | sbfree(&so->so_rcv, m); |
| 408 | so->so_rcv.sb_mb = m->m_next; |
| 409 | MFREE(m, n); |
| 410 | } else { |
| 411 | m->m_off += len; |
| 412 | m->m_len -= len; |
| 413 | so->so_rcv.sb_cc -= len; |
| 414 | } |
| 415 | } while ((m = so->so_rcv.sb_mb) && cnt && !eor); |
| 416 | if ((so->so_proto->pr_flags & PR_ATOMIC) && eor == 0) |
| 417 | do { |
| 418 | if (m == 0) |
| 419 | panic("receive 3"); |
| 420 | sbfree(&so->so_rcv, m); |
| 421 | eor = (int)m->m_act; |
| 422 | so->so_rcv.sb_mb = m->m_next; |
| 423 | MFREE(m, n); |
| 424 | m = n; |
| 425 | } while (eor == 0); |
| 426 | if ((so->so_proto->pr_flags & PR_WANTRCVD) && so->so_pcb) |
| 427 | (*so->so_proto->pr_usrreq)(so, PRU_RCVD, 0, 0); |
| 428 | if (so->so_oobmark) { |
| 429 | so->so_oobmark -= u.u_base - base; |
| 430 | if (so->so_oobmark == 0) |
| 431 | so->so_state |= SS_RCVATMARK; |
| 432 | } |
| 433 | release: |
| 434 | sbunlock(&so->so_rcv); |
| 435 | splx(s); |
| 436 | return (error); |
| 437 | } |
| 438 | |
| 439 | sohasoutofband(so) |
| 440 | struct socket *so; |
| 441 | { |
| 442 | |
| 443 | if (so->so_pgrp == 0) |
| 444 | return; |
| 445 | if (so->so_pgrp > 0) |
| 446 | gsignal(so->so_pgrp, SIGURG); |
| 447 | else { |
| 448 | struct proc *p = pfind(-so->so_pgrp); |
| 449 | |
| 450 | if (p) |
| 451 | psignal(p, SIGURG); |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | /*ARGSUSED*/ |
| 456 | soioctl(so, cmd, cmdp) |
| 457 | register struct socket *so; |
| 458 | int cmd; |
| 459 | register caddr_t cmdp; |
| 460 | { |
| 461 | |
| 462 | switch (cmd) { |
| 463 | |
| 464 | case FIONBIO: { |
| 465 | int nbio; |
| 466 | if (copyin(cmdp, (caddr_t)&nbio, sizeof (nbio))) { |
| 467 | u.u_error = EFAULT; |
| 468 | return; |
| 469 | } |
| 470 | if (nbio) |
| 471 | so->so_state |= SS_NBIO; |
| 472 | else |
| 473 | so->so_state &= ~SS_NBIO; |
| 474 | return; |
| 475 | } |
| 476 | |
| 477 | case FIOASYNC: { |
| 478 | int async; |
| 479 | if (copyin(cmdp, (caddr_t)&async, sizeof (async))) { |
| 480 | u.u_error = EFAULT; |
| 481 | return; |
| 482 | } |
| 483 | if (async) |
| 484 | so->so_state |= SS_ASYNC; |
| 485 | else |
| 486 | so->so_state &= ~SS_ASYNC; |
| 487 | return; |
| 488 | } |
| 489 | |
| 490 | case SIOCSKEEP: { |
| 491 | int keep; |
| 492 | if (copyin(cmdp, (caddr_t)&keep, sizeof (keep))) { |
| 493 | u.u_error = EFAULT; |
| 494 | return; |
| 495 | } |
| 496 | if (keep) |
| 497 | so->so_options &= ~SO_KEEPALIVE; |
| 498 | else |
| 499 | so->so_options |= SO_KEEPALIVE; |
| 500 | return; |
| 501 | } |
| 502 | |
| 503 | case SIOCGKEEP: { |
| 504 | int keep = (so->so_options & SO_KEEPALIVE) != 0; |
| 505 | if (copyout((caddr_t)&keep, cmdp, sizeof (keep))) |
| 506 | u.u_error = EFAULT; |
| 507 | return; |
| 508 | } |
| 509 | |
| 510 | case SIOCSLINGER: { |
| 511 | int linger; |
| 512 | if (copyin(cmdp, (caddr_t)&linger, sizeof (linger))) { |
| 513 | u.u_error = EFAULT; |
| 514 | return; |
| 515 | } |
| 516 | so->so_linger = linger; |
| 517 | if (so->so_linger) |
| 518 | so->so_options &= ~SO_DONTLINGER; |
| 519 | else |
| 520 | so->so_options |= SO_DONTLINGER; |
| 521 | return; |
| 522 | } |
| 523 | |
| 524 | case SIOCGLINGER: { |
| 525 | int linger = so->so_linger; |
| 526 | if (copyout((caddr_t)&linger, cmdp, sizeof (linger))) { |
| 527 | u.u_error = EFAULT; |
| 528 | return; |
| 529 | } |
| 530 | } |
| 531 | case SIOCSPGRP: { |
| 532 | int pgrp; |
| 533 | if (copyin(cmdp, (caddr_t)&pgrp, sizeof (pgrp))) { |
| 534 | u.u_error = EFAULT; |
| 535 | return; |
| 536 | } |
| 537 | so->so_pgrp = pgrp; |
| 538 | return; |
| 539 | } |
| 540 | |
| 541 | case SIOCGPGRP: { |
| 542 | int pgrp = so->so_pgrp; |
| 543 | if (copyout((caddr_t)&pgrp, cmdp, sizeof (pgrp))) { |
| 544 | u.u_error = EFAULT; |
| 545 | return; |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | case SIOCDONE: { |
| 550 | int flags; |
| 551 | if (copyin(cmdp, (caddr_t)&flags, sizeof (flags))) { |
| 552 | u.u_error = EFAULT; |
| 553 | return; |
| 554 | } |
| 555 | flags++; |
| 556 | if (flags & FREAD) { |
| 557 | int s = splimp(); |
| 558 | socantrcvmore(so); |
| 559 | sbflush(&so->so_rcv); |
| 560 | splx(s); |
| 561 | } |
| 562 | if (flags & FWRITE) |
| 563 | u.u_error = (*so->so_proto->pr_usrreq)(so, PRU_SHUTDOWN, (struct mbuf *)0, 0); |
| 564 | return; |
| 565 | } |
| 566 | |
| 567 | case SIOCSENDOOB: { |
| 568 | char oob; |
| 569 | struct mbuf *m; |
| 570 | if (copyin(cmdp, (caddr_t)&oob, sizeof (oob))) { |
| 571 | u.u_error = EFAULT; |
| 572 | return; |
| 573 | } |
| 574 | m = m_get(M_DONTWAIT); |
| 575 | if (m == 0) { |
| 576 | u.u_error = ENOBUFS; |
| 577 | return; |
| 578 | } |
| 579 | m->m_off = MMINOFF; |
| 580 | m->m_len = 1; |
| 581 | *mtod(m, caddr_t) = oob; |
| 582 | (*so->so_proto->pr_usrreq)(so, PRU_SENDOOB, m, 0); |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | case SIOCRCVOOB: { |
| 587 | struct mbuf *m = m_get(M_DONTWAIT); |
| 588 | if (m == 0) { |
| 589 | u.u_error = ENOBUFS; |
| 590 | return; |
| 591 | } |
| 592 | m->m_off = MMINOFF; *mtod(m, caddr_t) = 0; |
| 593 | (*so->so_proto->pr_usrreq)(so, PRU_RCVOOB, m, 0); |
| 594 | if (copyout(mtod(m, caddr_t), cmdp, sizeof (char))) { |
| 595 | u.u_error = EFAULT; |
| 596 | return; |
| 597 | } |
| 598 | m_free(m); |
| 599 | return; |
| 600 | } |
| 601 | |
| 602 | case SIOCATMARK: { |
| 603 | int atmark = (so->so_state&SS_RCVATMARK) != 0; |
| 604 | if (copyout((caddr_t)&atmark, cmdp, sizeof (atmark))) { |
| 605 | u.u_error = EFAULT; |
| 606 | return; |
| 607 | } |
| 608 | return; |
| 609 | } |
| 610 | |
| 611 | /* routing table update calls */ |
| 612 | case SIOCADDRT: |
| 613 | case SIOCDELRT: |
| 614 | case SIOCCHGRT: { |
| 615 | struct rtentry route; |
| 616 | if (!suser()) |
| 617 | return; |
| 618 | if (copyin(cmdp, (caddr_t)&route, sizeof (route))) { |
| 619 | u.u_error = EFAULT; |
| 620 | return; |
| 621 | } |
| 622 | u.u_error = rtrequest(cmd, &route); |
| 623 | return; |
| 624 | } |
| 625 | |
| 626 | /* type/protocol specific ioctls */ |
| 627 | } |
| 628 | u.u_error = EOPNOTSUPP; |
| 629 | } |