1 /* $NetBSD: linux32_socket.c,v 1.14 2009/12/10 17:07:26 njoly Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_socket.c,v 1.14 2009/12/10 17:07:26 njoly Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/fstypes.h> 41 #include <sys/signal.h> 42 #include <sys/dirent.h> 43 #include <sys/kernel.h> 44 #include <sys/fcntl.h> 45 #include <sys/select.h> 46 #include <sys/proc.h> 47 #include <sys/ucred.h> 48 #include <sys/swap.h> 49 #include <sys/file.h> 50 #include <sys/vnode.h> 51 #include <sys/filedesc.h> 52 53 #include <machine/types.h> 54 55 #include <net/if.h> 56 #include <net/if_dl.h> 57 #include <net/if_types.h> 58 #include <net/route.h> 59 60 #include <netinet/in.h> 61 #include <netinet/ip_mroute.h> 62 63 #include <sys/syscallargs.h> 64 65 #include <compat/netbsd32/netbsd32.h> 66 #include <compat/netbsd32/netbsd32_ioctl.h> 67 #include <compat/netbsd32/netbsd32_conv.h> 68 #include <compat/netbsd32/netbsd32_syscallargs.h> 69 70 #include <compat/sys/socket.h> 71 #include <compat/sys/sockio.h> 72 73 #include <compat/linux/common/linux_types.h> 74 #include <compat/linux/common/linux_types.h> 75 #include <compat/linux/common/linux_signal.h> 76 #include <compat/linux/common/linux_machdep.h> 77 #include <compat/linux/common/linux_misc.h> 78 #include <compat/linux/common/linux_oldolduname.h> 79 #include <compat/linux/common/linux_ioctl.h> 80 #include <compat/linux/common/linux_sockio.h> 81 #include <compat/linux/common/linux_ipc.h> 82 #include <compat/linux/common/linux_sem.h> 83 #include <compat/linux/linux_syscallargs.h> 84 85 #include <compat/linux32/common/linux32_types.h> 86 #include <compat/linux32/common/linux32_signal.h> 87 #include <compat/linux32/common/linux32_machdep.h> 88 #include <compat/linux32/common/linux32_sysctl.h> 89 #include <compat/linux32/common/linux32_socketcall.h> 90 #include <compat/linux32/common/linux32_sockio.h> 91 #include <compat/linux32/common/linux32_ioctl.h> 92 #include <compat/linux32/linux32_syscallargs.h> 93 94 int linux32_getifname(struct lwp *, register_t *, void *); 95 int linux32_getifconf(struct lwp *, register_t *, void *); 96 int linux32_getifhwaddr(struct lwp *, register_t *, u_int, void *); 97 98 int 99 linux32_sys_socketpair(struct lwp *l, const struct linux32_sys_socketpair_args *uap, register_t *retval) 100 { 101 /* { 102 syscallarg(int) domain; 103 syscallarg(int) type; 104 syscallarg(int) protocol; 105 syscallarg(netbsd32_intp) rsv; 106 } */ 107 struct linux_sys_socketpair_args ua; 108 109 NETBSD32TO64_UAP(domain); 110 NETBSD32TO64_UAP(type); 111 NETBSD32TO64_UAP(protocol); 112 NETBSD32TOP_UAP(rsv, int) 113 114 return linux_sys_socketpair(l, &ua, retval); 115 } 116 117 int 118 linux32_sys_sendto(struct lwp *l, const struct linux32_sys_sendto_args *uap, register_t *retval) 119 { 120 /* { 121 syscallarg(int) s; 122 syscallarg(netbsd32_voidp) msg; 123 syscallarg(int) len; 124 syscallarg(int) flags; 125 syscallarg(netbsd32_osockaddrp_t) to; 126 syscallarg(int) tolen; 127 } */ 128 struct linux_sys_sendto_args ua; 129 130 NETBSD32TO64_UAP(s); 131 NETBSD32TOP_UAP(msg, void); 132 NETBSD32TO64_UAP(len); 133 NETBSD32TO64_UAP(flags); 134 NETBSD32TOP_UAP(to, struct osockaddr); 135 NETBSD32TO64_UAP(tolen); 136 137 return linux_sys_sendto(l, &ua, retval); 138 } 139 140 141 int 142 linux32_sys_recvfrom(struct lwp *l, const struct linux32_sys_recvfrom_args *uap, register_t *retval) 143 { 144 /* { 145 syscallarg(int) s; 146 syscallarg(netbsd32_voidp) buf; 147 syscallarg(netbsd32_size_t) len; 148 syscallarg(int) flags; 149 syscallarg(netbsd32_osockaddrp_t) from; 150 syscallarg(netbsd32_intp) fromlenaddr; 151 } */ 152 struct linux_sys_recvfrom_args ua; 153 154 NETBSD32TO64_UAP(s); 155 NETBSD32TOP_UAP(buf, void); 156 NETBSD32TO64_UAP(len); 157 NETBSD32TO64_UAP(flags); 158 NETBSD32TOP_UAP(from, struct osockaddr); 159 NETBSD32TOP_UAP(fromlenaddr, unsigned int); 160 161 return linux_sys_recvfrom(l, &ua, retval); 162 } 163 164 int 165 linux32_sys_setsockopt(struct lwp *l, const struct linux32_sys_setsockopt_args *uap, register_t *retval) 166 { 167 /* { 168 syscallarg(int) s; 169 syscallarg(int) level; 170 syscallarg(int) optname; 171 syscallarg(netbsd32_voidp) optval; 172 syscallarg(int) optlen; 173 } */ 174 struct linux_sys_setsockopt_args ua; 175 176 NETBSD32TO64_UAP(s); 177 NETBSD32TO64_UAP(level); 178 NETBSD32TO64_UAP(optname); 179 NETBSD32TOP_UAP(optval, void); 180 NETBSD32TO64_UAP(optlen); 181 182 return linux_sys_setsockopt(l, &ua, retval); 183 } 184 185 186 int 187 linux32_sys_getsockopt(struct lwp *l, const struct linux32_sys_getsockopt_args *uap, register_t *retval) 188 { 189 /* { 190 syscallarg(int) s; 191 syscallarg(int) level; 192 syscallarg(int) optname; 193 syscallarg(netbsd32_voidp) optval; 194 syscallarg(netbsd32_intp) optlen; 195 } */ 196 struct linux_sys_getsockopt_args ua; 197 198 NETBSD32TO64_UAP(s); 199 NETBSD32TO64_UAP(level); 200 NETBSD32TO64_UAP(optname); 201 NETBSD32TOP_UAP(optval, void); 202 NETBSD32TOP_UAP(optlen, int); 203 204 return linux_sys_getsockopt(l, &ua, retval); 205 } 206 207 int 208 linux32_sys_socket(struct lwp *l, const struct linux32_sys_socket_args *uap, register_t *retval) 209 { 210 /* { 211 syscallarg(int) domain; 212 syscallarg(int) type; 213 syscallarg(int) protocol; 214 } */ 215 struct linux_sys_socket_args ua; 216 217 NETBSD32TO64_UAP(domain); 218 NETBSD32TO64_UAP(type); 219 NETBSD32TO64_UAP(protocol); 220 221 return linux_sys_socket(l, &ua, retval); 222 } 223 224 int 225 linux32_sys_bind(struct lwp *l, const struct linux32_sys_bind_args *uap, register_t *retval) 226 { 227 /* { 228 syscallarg(int) s; 229 syscallarg(netbsd32_osockaddrp_t) name; 230 syscallarg(int) namelen; 231 } */ 232 struct linux_sys_bind_args ua; 233 234 NETBSD32TO64_UAP(s); 235 NETBSD32TOP_UAP(name, struct osockaddr) 236 NETBSD32TO64_UAP(namelen); 237 238 return linux_sys_bind(l, &ua, retval); 239 } 240 241 int 242 linux32_sys_connect(struct lwp *l, const struct linux32_sys_connect_args *uap, register_t *retval) 243 { 244 /* { 245 syscallarg(int) s; 246 syscallarg(netbsd32_osockaddrp_t) name; 247 syscallarg(int) namelen; 248 } */ 249 struct linux_sys_connect_args ua; 250 251 NETBSD32TO64_UAP(s); 252 NETBSD32TOP_UAP(name, struct osockaddr) 253 NETBSD32TO64_UAP(namelen); 254 255 #ifdef DEBUG_LINUX 256 printf("linux32_sys_connect: s = %d, name = %p, namelen = %d\n", 257 SCARG(&ua, s), SCARG(&ua, name), SCARG(&ua, namelen)); 258 #endif 259 260 return linux_sys_connect(l, &ua, retval); 261 } 262 263 int 264 linux32_sys_accept(struct lwp *l, const struct linux32_sys_accept_args *uap, register_t *retval) 265 { 266 /* { 267 syscallarg(int) s; 268 syscallarg(netbsd32_osockaddrp_t) name; 269 syscallarg(netbsd32_intp) anamelen; 270 } */ 271 struct linux_sys_accept_args ua; 272 273 NETBSD32TO64_UAP(s); 274 NETBSD32TOP_UAP(name, struct osockaddr) 275 NETBSD32TOP_UAP(anamelen, int); 276 277 return linux_sys_accept(l, &ua, retval); 278 } 279 280 int 281 linux32_sys_getpeername(struct lwp *l, const struct linux32_sys_getpeername_args *uap, register_t *retval) 282 { 283 /* { 284 syscallarg(int) fdes; 285 syscallarg(netbsd32_sockaddrp_t) asa; 286 syscallarg(netbsd32_intp) alen; 287 } */ 288 struct linux_sys_getpeername_args ua; 289 290 NETBSD32TO64_UAP(fdes); 291 NETBSD32TOP_UAP(asa, struct sockaddr) 292 NETBSD32TOP_UAP(alen, int); 293 294 return linux_sys_getpeername(l, &ua, retval); 295 } 296 297 int 298 linux32_sys_getsockname(struct lwp *l, const struct linux32_sys_getsockname_args *uap, register_t *retval) 299 { 300 /* { 301 syscallarg(int) fdec; 302 syscallarg(netbsd32_charp) asa; 303 syscallarg(netbsd32_intp) alen; 304 } */ 305 struct linux_sys_getsockname_args ua; 306 307 NETBSD32TO64_UAP(fdec); 308 NETBSD32TOP_UAP(asa, char) 309 NETBSD32TOP_UAP(alen, int); 310 311 return linux_sys_getsockname(l, &ua, retval); 312 } 313 314 int 315 linux32_sys_sendmsg(struct lwp *l, const struct linux32_sys_sendmsg_args *uap, register_t *retval) 316 { 317 /* { 318 syscallarg(int) s; 319 syscallarg(netbsd32_msghdrp_t) msg; 320 syscallarg(int) flags; 321 } */ 322 struct linux_sys_sendmsg_args ua; 323 324 NETBSD32TO64_UAP(s); 325 NETBSD32TOP_UAP(msg, struct msghdr); 326 NETBSD32TO64_UAP(flags); 327 328 return linux_sys_sendmsg(l, &ua, retval); 329 } 330 331 int 332 linux32_sys_recvmsg(struct lwp *l, const struct linux32_sys_recvmsg_args *uap, register_t *retval) 333 { 334 /* { 335 syscallarg(int) s; 336 syscallarg(netbsd32_msghdrp_t) msg; 337 syscallarg(int) flags; 338 } */ 339 struct linux_sys_recvmsg_args ua; 340 341 NETBSD32TO64_UAP(s); 342 NETBSD32TOP_UAP(msg, struct msghdr); 343 NETBSD32TO64_UAP(flags); 344 345 return linux_sys_recvmsg(l, &ua, retval); 346 } 347 348 int 349 linux32_sys_send(struct lwp *l, const struct linux32_sys_send_args *uap, register_t *retval) 350 { 351 /* { 352 syscallarg(int) s; 353 syscallarg(netbsd32_voidp) buf; 354 syscallarg(int) len; 355 syscallarg(int) flags; 356 } */ 357 struct sys_sendto_args ua; 358 359 NETBSD32TO64_UAP(s); 360 NETBSD32TOP_UAP(buf, void); 361 NETBSD32TO64_UAP(len); 362 NETBSD32TO64_UAP(flags); 363 SCARG(&ua, to) = NULL; 364 SCARG(&ua, tolen) = 0; 365 366 return sys_sendto(l, &ua, retval); 367 } 368 369 int 370 linux32_sys_recv(struct lwp *l, const struct linux32_sys_recv_args *uap, register_t *retval) 371 { 372 /* { 373 syscallarg(int) s; 374 syscallarg(netbsd32_voidp) buf; 375 syscallarg(int) len; 376 syscallarg(int) flags; 377 } */ 378 struct sys_recvfrom_args ua; 379 380 NETBSD32TO64_UAP(s); 381 NETBSD32TOP_UAP(buf, void); 382 NETBSD32TO64_UAP(len); 383 NETBSD32TO64_UAP(flags); 384 SCARG(&ua, from) = NULL; 385 SCARG(&ua, fromlenaddr) = NULL; 386 387 return sys_recvfrom(l, &ua, retval); 388 } 389 390 int 391 linux32_getifname(struct lwp *l, register_t *retval, void *data) 392 { 393 struct ifnet *ifp; 394 struct linux32_ifreq ifr; 395 int error; 396 397 error = copyin(data, &ifr, sizeof(ifr)); 398 if (error) 399 return error; 400 401 if (ifr.ifr_ifru.ifru_ifindex >= if_indexlim) 402 return ENODEV; 403 404 ifp = ifindex2ifnet[ifr.ifr_ifru.ifru_ifindex]; 405 if (ifp == NULL) 406 return ENODEV; 407 408 strncpy(ifr.ifr_name, ifp->if_xname, sizeof(ifr.ifr_name)); 409 410 return copyout(&ifr, data, sizeof(ifr)); 411 } 412 413 int 414 linux32_getifconf(struct lwp *l, register_t *retval, void *data) 415 { 416 struct linux32_ifreq ifr, *ifrp; 417 struct netbsd32_ifconf *ifc = data; 418 struct ifnet *ifp; 419 struct ifaddr *ifa; 420 struct sockaddr *sa; 421 struct osockaddr *osa; 422 int space, error = 0; 423 const int sz = (int)sizeof(ifr); 424 425 ifrp = (struct linux32_ifreq *)NETBSD32PTR64(ifc->ifc_req); 426 if (ifrp == NULL) 427 space = 0; 428 else 429 space = ifc->ifc_len; 430 431 IFNET_FOREACH(ifp) { 432 (void)strncpy(ifr.ifr_name, ifp->if_xname, 433 sizeof(ifr.ifr_name)); 434 if (ifr.ifr_name[sizeof(ifr.ifr_name) - 1] != '\0') 435 return ENAMETOOLONG; 436 if (IFADDR_EMPTY(ifp)) 437 continue; 438 IFADDR_FOREACH(ifa, ifp) { 439 sa = ifa->ifa_addr; 440 if (sa->sa_family != AF_INET || 441 sa->sa_len > sizeof(*osa)) 442 continue; 443 memcpy(&ifr.ifr_addr, sa, sa->sa_len); 444 osa = (struct osockaddr *)&ifr.ifr_addr; 445 osa->sa_family = sa->sa_family; 446 if (space >= sz) { 447 error = copyout(&ifr, ifrp, sz); 448 if (error != 0) 449 return error; 450 ifrp++; 451 } 452 space -= sz; 453 } 454 } 455 456 if (ifrp != NULL) 457 ifc->ifc_len -= space; 458 else 459 ifc->ifc_len = -space; 460 461 return 0; 462 } 463 464 int 465 linux32_getifhwaddr(struct lwp *l, register_t *retval, u_int fd, 466 void *data) 467 { 468 struct linux32_ifreq lreq; 469 file_t *fp; 470 struct ifaddr *ifa; 471 struct ifnet *ifp; 472 struct sockaddr_dl *sadl; 473 int error, found; 474 int index, ifnum; 475 476 /* 477 * We can't emulate this ioctl by calling sys_ioctl() to run 478 * SIOCGIFCONF, because the user buffer is not of the right 479 * type to take those results. We can't use kernel buffers to 480 * receive the results, as the implementation of sys_ioctl() 481 * and ifconf() [which implements SIOCGIFCONF] use 482 * copyin()/copyout() which will fail on kernel addresses. 483 * 484 * So, we must duplicate code from sys_ioctl() and ifconf(). Ugh. 485 */ 486 487 if ((fp = fd_getfile(fd)) == NULL) 488 return (EBADF); 489 490 KERNEL_LOCK(1, NULL); 491 492 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 493 error = EBADF; 494 goto out; 495 } 496 497 error = copyin(data, &lreq, sizeof(lreq)); 498 if (error) 499 goto out; 500 lreq.ifr_name[LINUX32_IFNAMSIZ-1] = '\0'; /* just in case */ 501 502 /* 503 * Try real interface name first, then fake "ethX" 504 */ 505 found = 0; 506 IFNET_FOREACH(ifp) { 507 if (found) 508 break; 509 if (strcmp(lreq.ifr_name, ifp->if_xname)) 510 /* not this interface */ 511 continue; 512 found=1; 513 if (IFADDR_EMPTY(ifp)) { 514 error = ENODEV; 515 goto out; 516 } 517 IFADDR_FOREACH(ifa, ifp) { 518 sadl = satosdl(ifa->ifa_addr); 519 /* only return ethernet addresses */ 520 /* XXX what about FDDI, etc. ? */ 521 if (sadl->sdl_family != AF_LINK || 522 sadl->sdl_type != IFT_ETHER) 523 continue; 524 memcpy(&lreq.ifr_hwaddr.sa_data, CLLADDR(sadl), 525 MIN(sadl->sdl_alen, 526 sizeof(lreq.ifr_hwaddr.sa_data))); 527 lreq.ifr_hwaddr.sa_family = 528 sadl->sdl_family; 529 error = copyout(&lreq, data, sizeof(lreq)); 530 goto out; 531 } 532 } 533 534 if (strncmp(lreq.ifr_name, "eth", 3) == 0) { 535 for (ifnum = 0, index = 3; 536 lreq.ifr_name[index] != '\0' && index < LINUX32_IFNAMSIZ; 537 index++) { 538 ifnum *= 10; 539 ifnum += lreq.ifr_name[index] - '0'; 540 } 541 542 error = EINVAL; /* in case we don't find one */ 543 found = 0; 544 IFNET_FOREACH(ifp) { 545 if (found) 546 break; 547 memcpy(lreq.ifr_name, ifp->if_xname, 548 MIN(LINUX32_IFNAMSIZ, IFNAMSIZ)); 549 IFADDR_FOREACH(ifa, ifp) { 550 sadl = satosdl(ifa->ifa_addr); 551 /* only return ethernet addresses */ 552 /* XXX what about FDDI, etc. ? */ 553 if (sadl->sdl_family != AF_LINK || 554 sadl->sdl_type != IFT_ETHER) 555 continue; 556 if (ifnum--) 557 /* not the reqested iface */ 558 continue; 559 memcpy(&lreq.ifr_hwaddr.sa_data, 560 CLLADDR(sadl), 561 MIN(sadl->sdl_alen, 562 sizeof(lreq.ifr_hwaddr.sa_data))); 563 lreq.ifr_hwaddr.sa_family = 564 sadl->sdl_family; 565 error = copyout(&lreq, data, sizeof(lreq)); 566 found = 1; 567 break; 568 } 569 } 570 } else { 571 /* unknown interface, not even an "eth*" name */ 572 error = ENODEV; 573 } 574 575 out: 576 KERNEL_UNLOCK_ONE(NULL); 577 fd_putfile(fd); 578 return error; 579 } 580 581 int 582 linux32_ioctl_socket(struct lwp *l, const struct linux32_sys_ioctl_args *uap, register_t *retval) 583 { 584 /* { 585 syscallarg(int) fd; 586 syscallarg(u_long) com; 587 syscallarg(void *) data; 588 } */ 589 u_long com; 590 int error = 0, isdev = 0, dosys = 1; 591 struct netbsd32_ioctl_args ia; 592 file_t *fp; 593 struct vnode *vp; 594 int (*ioctlf)(file_t *, u_long, void *); 595 struct ioctl_pt pt; 596 597 if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) 598 return (EBADF); 599 600 if (fp->f_type == DTYPE_VNODE) { 601 vp = (struct vnode *)fp->f_data; 602 isdev = vp->v_type == VCHR; 603 } 604 605 /* 606 * Don't try to interpret socket ioctl calls that are done 607 * on a device filedescriptor, just pass them through, to 608 * emulate Linux behaviour. Use PTIOCLINUX so that the 609 * device will only handle these if it's prepared to do 610 * so, to avoid unexpected things from happening. 611 */ 612 if (isdev) { 613 dosys = 0; 614 ioctlf = fp->f_ops->fo_ioctl; 615 pt.com = SCARG(uap, com); 616 pt.data = (void *)NETBSD32PTR64(SCARG(uap, data)); 617 error = ioctlf(fp, PTIOCLINUX, &pt); 618 /* 619 * XXX hack: if the function returns EJUSTRETURN, 620 * it has stuffed a sysctl return value in pt.data. 621 */ 622 if (error == EJUSTRETURN) { 623 retval[0] = (register_t)pt.data; 624 error = 0; 625 } 626 goto out; 627 } 628 629 com = SCARG(uap, com); 630 retval[0] = 0; 631 632 switch (com) { 633 case LINUX_SIOCGIFNAME: 634 error = linux32_getifname(l, retval, SCARG_P32(uap, data)); 635 dosys = 0; 636 break; 637 case LINUX_SIOCGIFCONF: 638 error = linux32_getifconf(l, retval, SCARG_P32(uap, data)); 639 dosys = 0; 640 break; 641 case LINUX_SIOCGIFFLAGS: 642 SCARG(&ia, com) = OSIOCGIFFLAGS32; 643 break; 644 case LINUX_SIOCSIFFLAGS: 645 SCARG(&ia, com) = OSIOCSIFFLAGS32; 646 break; 647 case LINUX_SIOCGIFADDR: 648 SCARG(&ia, com) = OOSIOCGIFADDR32; 649 break; 650 case LINUX_SIOCGIFDSTADDR: 651 SCARG(&ia, com) = OOSIOCGIFDSTADDR32; 652 break; 653 case LINUX_SIOCGIFBRDADDR: 654 SCARG(&ia, com) = OOSIOCGIFBRDADDR32; 655 break; 656 case LINUX_SIOCGIFNETMASK: 657 SCARG(&ia, com) = OOSIOCGIFNETMASK32; 658 break; 659 case LINUX_SIOCGIFMTU: 660 SCARG(&ia, com) = OSIOCGIFMTU32; 661 break; 662 case LINUX_SIOCADDMULTI: 663 SCARG(&ia, com) = OSIOCADDMULTI32; 664 break; 665 case LINUX_SIOCDELMULTI: 666 SCARG(&ia, com) = OSIOCDELMULTI32; 667 break; 668 case LINUX_SIOCGIFHWADDR: 669 error = linux32_getifhwaddr(l, retval, SCARG(uap, fd), 670 SCARG_P32(uap, data)); 671 dosys = 0; 672 break; 673 default: 674 error = EINVAL; 675 } 676 677 out: 678 fd_putfile(SCARG(uap, fd)); 679 680 if (error == 0 && dosys) { 681 SCARG(&ia, fd) = SCARG(uap, fd); 682 SCARG(&ia, data) = SCARG(uap, data); 683 error = netbsd32_ioctl(curlwp, &ia, retval); 684 } 685 686 return error; 687 } 688