netbsd32_ioctl.c revision 1.38.6.1
1 /* $NetBSD: netbsd32_ioctl.c,v 1.38.6.1 2008/05/10 23:48:57 wrstuden Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * handle ioctl conversions from netbsd32 -> 64-bit kernel 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: netbsd32_ioctl.c,v 1.38.6.1 2008/05/10 23:48:57 wrstuden Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/filedesc.h> 41 #include <sys/ioctl.h> 42 #include <sys/file.h> 43 #include <sys/proc.h> 44 #include <sys/socketvar.h> 45 #include <sys/audioio.h> 46 #include <sys/disklabel.h> 47 #include <sys/dkio.h> 48 #include <sys/malloc.h> 49 #include <sys/sockio.h> 50 #include <sys/socket.h> 51 #include <sys/ttycom.h> 52 #include <sys/mount.h> 53 #include <sys/sa.h> 54 #include <sys/syscallargs.h> 55 #include <sys/ktrace.h> 56 #include <sys/kmem.h> 57 58 #ifdef __sparc__ 59 #include <dev/sun/fbio.h> 60 #include <machine/openpromio.h> 61 #endif 62 63 #include <net/if.h> 64 #include <net/route.h> 65 66 #include <netinet/in.h> 67 #include <netinet/in_var.h> 68 #include <netinet/igmp.h> 69 #include <netinet/igmp_var.h> 70 #include <netinet/ip_mroute.h> 71 72 #include <compat/sys/sockio.h> 73 74 #include <compat/netbsd32/netbsd32.h> 75 #include <compat/netbsd32/netbsd32_ioctl.h> 76 #include <compat/netbsd32/netbsd32_syscallargs.h> 77 78 /* prototypes for the converters */ 79 static inline void netbsd32_to_partinfo(struct netbsd32_partinfo *, 80 struct partinfo *, u_long); 81 #if 0 82 static inline void netbsd32_to_format_op(struct netbsd32_format_op *, 83 struct format_op *, u_long); 84 #endif 85 static inline void netbsd32_to_ifreq(struct netbsd32_ifreq *, struct ifreq *, 86 u_long cmd); 87 static inline void netbsd32_to_ifconf(struct netbsd32_ifconf *, 88 struct ifconf *, u_long); 89 static inline void netbsd32_to_ifmediareq(struct netbsd32_ifmediareq *, 90 struct ifmediareq *, u_long); 91 static inline void netbsd32_to_ifdrv(struct netbsd32_ifdrv *, struct ifdrv *, 92 u_long); 93 static inline void netbsd32_to_sioc_vif_req(struct netbsd32_sioc_vif_req *, 94 struct sioc_vif_req *, u_long); 95 static inline void netbsd32_to_sioc_sg_req(struct netbsd32_sioc_sg_req *, 96 struct sioc_sg_req *, u_long); 97 static inline void netbsd32_from_partinfo(struct partinfo *, 98 struct netbsd32_partinfo *, u_long); 99 #if 0 100 static inline void netbsd32_from_format_op(struct format_op *, 101 struct netbsd32_format_op *, 102 u_long); 103 #endif 104 static inline void netbsd32_from_ifreq(struct ifreq *, 105 struct netbsd32_ifreq *, u_long); 106 static inline void netbsd32_from_ifconf(struct ifconf *, 107 struct netbsd32_ifconf *, u_long); 108 static inline void netbsd32_from_ifmediareq(struct ifmediareq *, 109 struct netbsd32_ifmediareq *, 110 u_long); 111 static inline void netbsd32_from_ifdrv(struct ifdrv *, 112 struct netbsd32_ifdrv *, u_long); 113 static inline void netbsd32_from_sioc_vif_req(struct sioc_vif_req *, 114 struct netbsd32_sioc_vif_req *, 115 u_long); 116 static inline void netbsd32_from_sioc_sg_req(struct sioc_sg_req *, 117 struct netbsd32_sioc_sg_req *, 118 u_long); 119 120 /* convert to/from different structures */ 121 122 static inline void 123 netbsd32_to_partinfo(struct netbsd32_partinfo *s32p, struct partinfo *p, u_long cmd) 124 { 125 126 p->disklab = (struct disklabel *)NETBSD32PTR64(s32p->disklab); 127 p->part = (struct partition *)NETBSD32PTR64(s32p->part); 128 } 129 130 #if 0 131 static inline void 132 netbsd32_to_format_op(struct netbsd32_format_op *s32p, struct format_op *p, u_long cmd) 133 { 134 135 p->df_buf = (char *)NETBSD32PTR64(s32p->df_buf); 136 p->df_count = s32p->df_count; 137 p->df_startblk = s32p->df_startblk; 138 memcpy(p->df_reg, s32p->df_reg, sizeof(s32p->df_reg)); 139 } 140 #endif 141 142 static inline void 143 netbsd32_to_ifreq(struct netbsd32_ifreq *s32p, struct ifreq *p, u_long cmd) 144 { 145 146 memcpy(p, s32p, sizeof *s32p); 147 /* 148 * XXX 149 * struct ifreq says the same, but sometimes the ifr_data 150 * union member needs to be converted to 64 bits... this 151 * is very driver specific and so we ignore it for now.. 152 */ 153 if (cmd == SIOCGIFDATA || cmd == SIOCZIFDATA) 154 p->ifr_data = (void *)NETBSD32PTR64(s32p->ifr_data); 155 } 156 157 static inline void 158 netbsd32_to_ifconf(struct netbsd32_ifconf *s32p, struct ifconf *p, u_long cmd) 159 { 160 161 p->ifc_len = s32p->ifc_len; 162 /* ifc_buf & ifc_req are the same size so this works */ 163 p->ifc_buf = (void *)NETBSD32PTR64(s32p->ifc_buf); 164 } 165 166 static inline void 167 netbsd32_to_ifmediareq(struct netbsd32_ifmediareq *s32p, struct ifmediareq *p, u_long cmd) 168 { 169 170 memcpy(p, s32p, sizeof *s32p); 171 p->ifm_ulist = (int *)NETBSD32PTR64(s32p->ifm_ulist); 172 } 173 174 static inline void 175 netbsd32_to_ifdrv(struct netbsd32_ifdrv *s32p, struct ifdrv *p, u_long cmd) 176 { 177 178 memcpy(p, s32p, sizeof *s32p); 179 p->ifd_data = (void *)NETBSD32PTR64(s32p->ifd_data); 180 } 181 182 static inline void 183 netbsd32_to_sioc_vif_req(struct netbsd32_sioc_vif_req *s32p, struct sioc_vif_req *p, u_long cmd) 184 { 185 186 p->vifi = s32p->vifi; 187 p->icount = (u_long)s32p->icount; 188 p->ocount = (u_long)s32p->ocount; 189 p->ibytes = (u_long)s32p->ibytes; 190 p->obytes = (u_long)s32p->obytes; 191 } 192 193 static inline void 194 netbsd32_to_sioc_sg_req(struct netbsd32_sioc_sg_req *s32p, struct sioc_sg_req *p, u_long cmd) 195 { 196 197 p->src = s32p->src; 198 p->grp = s32p->grp; 199 p->pktcnt = (u_long)s32p->pktcnt; 200 p->bytecnt = (u_long)s32p->bytecnt; 201 p->wrong_if = (u_long)s32p->wrong_if; 202 } 203 204 /* 205 * handle ioctl conversions from 64-bit kernel -> netbsd32 206 */ 207 208 static inline void 209 netbsd32_from_partinfo(struct partinfo *p, struct netbsd32_partinfo *s32p, u_long cmd) 210 { 211 212 NETBSD32PTR32(s32p->disklab, p->disklab); 213 NETBSD32PTR32(s32p->part, p->part); 214 } 215 216 #if 0 217 static inline void 218 netbsd32_from_format_op(struct format_op *p, struct netbsd32_format_op *s32p, u_long cmd) 219 { 220 221 /* filled in */ 222 #if 0 223 s32p->df_buf = (netbsd32_charp)p->df_buf; 224 #endif 225 s32p->df_count = p->df_count; 226 s32p->df_startblk = p->df_startblk; 227 memcpy(s32p->df_reg, p->df_reg, sizeof(p->df_reg)); 228 } 229 #endif 230 231 static inline void 232 netbsd32_from_ifreq(struct ifreq *p, struct netbsd32_ifreq *s32p, u_long cmd) 233 { 234 235 /* 236 * XXX 237 * struct ifreq says the same, but sometimes the ifr_data 238 * union member needs to be converted to 64 bits... this 239 * is very driver specific and so we ignore it for now.. 240 */ 241 *s32p->ifr_name = *p->ifr_name; 242 if (cmd == SIOCGIFDATA || cmd == SIOCZIFDATA) 243 NETBSD32PTR32(s32p->ifr_data, p->ifr_data); 244 } 245 246 static inline void 247 netbsd32_from_ifconf(struct ifconf *p, struct netbsd32_ifconf *s32p, u_long cmd) 248 { 249 250 s32p->ifc_len = p->ifc_len; 251 /* ifc_buf & ifc_req are the same size so this works */ 252 NETBSD32PTR32(s32p->ifc_buf, p->ifc_buf); 253 } 254 255 static inline void 256 netbsd32_from_ifmediareq(struct ifmediareq *p, struct netbsd32_ifmediareq *s32p, u_long cmd) 257 { 258 259 memcpy(s32p, p, sizeof *p); 260 /* filled in? */ 261 #if 0 262 s32p->ifm_ulist = (netbsd32_intp_t)p->ifm_ulist; 263 #endif 264 } 265 266 static inline void 267 netbsd32_from_ifdrv(struct ifdrv *p, struct netbsd32_ifdrv *s32p, u_long cmd) 268 { 269 270 memcpy(s32p, p, sizeof *p); 271 /* filled in? */ 272 #if 0 273 s32p->ifm_data = (netbsd32_u_longp_t)p->ifm_data; 274 #endif 275 } 276 277 static inline void 278 netbsd32_from_sioc_vif_req(struct sioc_vif_req *p, struct netbsd32_sioc_vif_req *s32p, u_long cmd) 279 { 280 281 s32p->vifi = p->vifi; 282 s32p->icount = (netbsd32_u_long)p->icount; 283 s32p->ocount = (netbsd32_u_long)p->ocount; 284 s32p->ibytes = (netbsd32_u_long)p->ibytes; 285 s32p->obytes = (netbsd32_u_long)p->obytes; 286 } 287 288 static inline void 289 netbsd32_from_sioc_sg_req(struct sioc_sg_req *p, struct netbsd32_sioc_sg_req *s32p, u_long cmd) 290 { 291 292 s32p->src = p->src; 293 s32p->grp = p->grp; 294 s32p->pktcnt = (netbsd32_u_long)p->pktcnt; 295 s32p->bytecnt = (netbsd32_u_long)p->bytecnt; 296 s32p->wrong_if = (netbsd32_u_long)p->wrong_if; 297 } 298 299 300 /* 301 * main ioctl syscall. 302 * 303 * ok, here we are in the biggy. we have to do fix ups depending 304 * on the ioctl command before and afterwards. 305 */ 306 int 307 netbsd32_ioctl(struct lwp *l, const struct netbsd32_ioctl_args *uap, register_t *retval) 308 { 309 /* { 310 syscallarg(int) fd; 311 syscallarg(netbsd32_u_long) com; 312 syscallarg(netbsd32_voidp) data; 313 } */ 314 struct proc *p = l->l_proc; 315 struct file *fp; 316 struct filedesc *fdp; 317 u_long com; 318 int error = 0; 319 u_int size, size32; 320 void *data, *memp = NULL; 321 void *data32, *memp32 = NULL; 322 unsigned fd; 323 fdfile_t *ff; 324 int tmp; 325 #define STK_PARAMS 128 326 u_long stkbuf[STK_PARAMS/sizeof(u_long)]; 327 u_long stkbuf32[STK_PARAMS/sizeof(u_long)]; 328 329 /* 330 * we need to translate some commands (_IOW) before calling sys_ioctl, 331 * some after (_IOR), and some both (_IOWR). 332 */ 333 #if 0 334 { 335 char *dirs[8] = { "NONE!", "VOID", "OUT", "VOID|OUT!", "IN", "VOID|IN!", 336 "INOUT", "VOID|IN|OUT!" }; 337 338 printf("netbsd32_ioctl(%d, %x, %x): %s group %c base %d len %d\n", 339 SCARG(uap, fd), SCARG(uap, com), SCARG(uap, data), 340 dirs[((SCARG(uap, com) & IOC_DIRMASK)>>29)], 341 IOCGROUP(SCARG(uap, com)), IOCBASECMD(SCARG(uap, com)), 342 IOCPARM_LEN(SCARG(uap, com))); 343 } 344 #endif 345 346 fdp = p->p_fd; 347 fd = SCARG(uap, fd); 348 if ((fp = fd_getfile(fd)) == NULL) 349 return (EBADF); 350 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 351 error = EBADF; 352 goto out; 353 } 354 355 ff = fdp->fd_ofiles[SCARG(uap, fd)]; 356 switch (com = SCARG(uap, com)) { 357 case FIONCLEX: 358 ff->ff_exclose = 0; 359 goto out; 360 361 case FIOCLEX: 362 ff->ff_exclose = 1; 363 fdp->fd_exclose = 1; 364 goto out; 365 } 366 367 /* 368 * Interpret high order word to find amount of data to be 369 * copied to/from the user's address space. 370 */ 371 size = 0; 372 size32 = IOCPARM_LEN(com); 373 if (size32 > IOCPARM_MAX) { 374 error = ENOTTY; 375 goto out; 376 } 377 if (size32 > sizeof(stkbuf)) { 378 memp32 = kmem_alloc((size_t)size32, KM_SLEEP); 379 data32 = memp32; 380 } else 381 data32 = (void *)stkbuf32; 382 if (com&IOC_IN) { 383 if (size32) { 384 error = copyin(SCARG_P32(uap, data), data32, size32); 385 if (error) { 386 if (memp32) 387 kmem_free(memp32, (size_t)size32); 388 goto out; 389 } 390 ktrgenio(fd, UIO_WRITE, SCARG_P32(uap, data), 391 size32, 0); 392 } else 393 *(void **)data32 = SCARG_P32(uap, data); 394 } else if ((com&IOC_OUT) && size32) 395 /* 396 * Zero the buffer so the user always 397 * gets back something deterministic. 398 */ 399 memset(data32, 0, size32); 400 else if (com&IOC_VOID) 401 *(void **)data32 = SCARG_P32(uap, data); 402 403 /* 404 * convert various structures, pointers, and other objects that 405 * change size from 32 bit -> 64 bit, for all ioctl commands. 406 */ 407 switch (SCARG(uap, com)) { 408 case FIONBIO: 409 mutex_enter(&fp->f_lock); 410 if ((tmp = *(int *)data32) != 0) 411 fp->f_flag |= FNONBLOCK; 412 else 413 fp->f_flag &= ~FNONBLOCK; 414 mutex_exit(&fp->f_lock); 415 error = (*fp->f_ops->fo_ioctl)(fp, FIONBIO, (void *)&tmp); 416 break; 417 418 case FIOASYNC: 419 mutex_enter(&fp->f_lock); 420 if ((tmp = *(int *)data32) != 0) 421 fp->f_flag |= FASYNC; 422 else 423 fp->f_flag &= ~FASYNC; 424 mutex_exit(&fp->f_lock); 425 error = (*fp->f_ops->fo_ioctl)(fp, FIOASYNC, (void *)&tmp); 426 break; 427 428 case DIOCGPART32: 429 IOCTL_STRUCT_CONV_TO(DIOCGPART, partinfo); 430 #if 0 /* not implemented by anything */ 431 case DIOCRFORMAT32: 432 IOCTL_STRUCT_CONV_TO(DIOCRFORMAT, format_op); 433 case DIOCWFORMAT32: 434 IOCTL_STRUCT_CONV_TO(DIOCWFORMAT, format_op); 435 #endif 436 437 /* 438 * only a few ifreq syscalls need conversion and those are 439 * all driver specific... XXX 440 */ 441 #if 0 442 case SIOCGADDRROM3232: 443 IOCTL_STRUCT_CONV_TO(SIOCGADDRROM32, ifreq); 444 case SIOCGCHIPID32: 445 IOCTL_STRUCT_CONV_TO(SIOCGCHIPID, ifreq); 446 case SIOCSIFADDR32: 447 IOCTL_STRUCT_CONV_TO(SIOCSIFADDR, ifreq); 448 case OSIOCGIFADDR32: 449 IOCTL_STRUCT_CONV_TO(OSIOCGIFADDR, ifreq); 450 case SIOCGIFADDR32: 451 IOCTL_STRUCT_CONV_TO(SIOCGIFADDR, ifreq); 452 case SIOCSIFDSTADDR32: 453 IOCTL_STRUCT_CONV_TO(SIOCSIFDSTADDR, ifreq); 454 case OSIOCGIFDSTADDR32: 455 IOCTL_STRUCT_CONV_TO(OSIOCGIFDSTADDR, ifreq); 456 case SIOCGIFDSTADDR32: 457 IOCTL_STRUCT_CONV_TO(SIOCGIFDSTADDR, ifreq); 458 case OSIOCGIFBRDADDR32: 459 IOCTL_STRUCT_CONV_TO(OSIOCGIFBRDADDR, ifreq); 460 case SIOCGIFBRDADDR32: 461 IOCTL_STRUCT_CONV_TO(SIOCGIFBRDADDR, ifreq); 462 case SIOCSIFBRDADDR32: 463 IOCTL_STRUCT_CONV_TO(SIOCSIFBRDADDR, ifreq); 464 case OSIOCGIFNETMASK32: 465 IOCTL_STRUCT_CONV_TO(OSIOCGIFNETMASK, ifreq); 466 case SIOCGIFNETMASK32: 467 IOCTL_STRUCT_CONV_TO(SIOCGIFNETMASK, ifreq); 468 case SIOCSIFNETMASK32: 469 IOCTL_STRUCT_CONV_TO(SIOCSIFNETMASK, ifreq); 470 case SIOCGIFMETRIC32: 471 IOCTL_STRUCT_CONV_TO(SIOCGIFMETRIC, ifreq); 472 case SIOCSIFMETRIC32: 473 IOCTL_STRUCT_CONV_TO(SIOCSIFMETRIC, ifreq); 474 case SIOCDIFADDR32: 475 IOCTL_STRUCT_CONV_TO(SIOCDIFADDR, ifreq); 476 case SIOCADDMULTI32: 477 IOCTL_STRUCT_CONV_TO(SIOCADDMULTI, ifreq); 478 case SIOCDELMULTI32: 479 IOCTL_STRUCT_CONV_TO(SIOCDELMULTI, ifreq); 480 case SIOCSIFMEDIA32: 481 IOCTL_STRUCT_CONV_TO(SIOCSIFMEDIA, ifreq); 482 case SIOCSIFMTU32: 483 IOCTL_STRUCT_CONV_TO(SIOCSIFMTU, ifreq); 484 case SIOCGIFMTU32: 485 IOCTL_STRUCT_CONV_TO(SIOCGIFMTU, ifreq); 486 case BIOCGETIF32: 487 IOCTL_STRUCT_CONV_TO(BIOCGETIF, ifreq); 488 case BIOCSETIF32: 489 IOCTL_STRUCT_CONV_TO(BIOCSETIF, ifreq); 490 case SIOCPHASE132: 491 IOCTL_STRUCT_CONV_TO(SIOCPHASE1, ifreq); 492 case SIOCPHASE232: 493 IOCTL_STRUCT_CONV_TO(SIOCPHASE2, ifreq); 494 #endif 495 496 case OSIOCGIFCONF32: 497 IOCTL_STRUCT_CONV_TO(OSIOCGIFCONF, ifconf); 498 case SIOCGIFCONF32: 499 IOCTL_STRUCT_CONV_TO(SIOCGIFCONF, ifconf); 500 501 case SIOCGIFFLAGS32: 502 IOCTL_STRUCT_CONV_TO(SIOCGIFFLAGS, ifreq); 503 case SIOCSIFFLAGS32: 504 IOCTL_STRUCT_CONV_TO(SIOCSIFFLAGS, ifreq); 505 506 case SIOCGIFMEDIA32: 507 IOCTL_STRUCT_CONV_TO(SIOCGIFMEDIA, ifmediareq); 508 509 case SIOCSDRVSPEC32: 510 IOCTL_STRUCT_CONV_TO(SIOCSDRVSPEC, ifdrv); 511 512 case SIOCGETVIFCNT32: 513 IOCTL_STRUCT_CONV_TO(SIOCGETVIFCNT, sioc_vif_req); 514 515 case SIOCGETSGCNT32: 516 IOCTL_STRUCT_CONV_TO(SIOCGETSGCNT, sioc_sg_req); 517 518 default: 519 #ifdef NETBSD32_MD_IOCTL 520 error = netbsd32_md_ioctl(fp, com, data32, l); 521 #else 522 error = (*fp->f_ops->fo_ioctl)(fp, com, data32); 523 #endif 524 break; 525 } 526 527 if (error == EPASSTHROUGH) 528 error = ENOTTY; 529 530 /* 531 * Copy any data to user, size was 532 * already set and checked above. 533 */ 534 if (error == 0 && (com&IOC_OUT) && size32) { 535 error = copyout(data32, SCARG_P32(uap, data), size32); 536 ktrgenio(fd, UIO_READ, SCARG_P32(uap, data), 537 size32, error); 538 } 539 540 /* if we malloced data, free it here */ 541 if (memp32) 542 kmem_free(memp32, (size_t)size32); 543 if (memp) 544 kmem_free(memp, (size_t)size); 545 out: 546 fd_putfile(fd); 547 return (error); 548 } 549
Indexes created Mon Sep 22 21:09:42 GMT 2025