netbsd32_ioctl.c revision 1.39.2.2
1 /* $NetBSD: netbsd32_ioctl.c,v 1.39.2.2 2008/07/03 18:37:58 simonb 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * handle ioctl conversions from netbsd32 -> 64-bit kernel 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: netbsd32_ioctl.c,v 1.39.2.2 2008/07/03 18:37:58 simonb Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/filedesc.h> 39 #include <sys/ioctl.h> 40 #include <sys/file.h> 41 #include <sys/proc.h> 42 #include <sys/socketvar.h> 43 #include <sys/audioio.h> 44 #include <sys/disklabel.h> 45 #include <sys/dkio.h> 46 #include <sys/malloc.h> 47 #include <sys/sockio.h> 48 #include <sys/socket.h> 49 #include <sys/ttycom.h> 50 #include <sys/mount.h> 51 #include <sys/syscallargs.h> 52 #include <sys/ktrace.h> 53 #include <sys/kmem.h> 54 55 #ifdef __sparc__ 56 #include <dev/sun/fbio.h> 57 #include <machine/openpromio.h> 58 #endif 59 60 #include <net/if.h> 61 #include <net/route.h> 62 63 #include <netinet/in.h> 64 #include <netinet/in_var.h> 65 #include <netinet/igmp.h> 66 #include <netinet/igmp_var.h> 67 #include <netinet/ip_mroute.h> 68 69 #include <compat/sys/sockio.h> 70 71 #include <compat/netbsd32/netbsd32.h> 72 #include <compat/netbsd32/netbsd32_ioctl.h> 73 #include <compat/netbsd32/netbsd32_syscallargs.h> 74 75 /* prototypes for the converters */ 76 static inline void netbsd32_to_partinfo(struct netbsd32_partinfo *, 77 struct partinfo *, u_long); 78 #if 0 79 static inline void netbsd32_to_format_op(struct netbsd32_format_op *, 80 struct format_op *, u_long); 81 #endif 82 static inline void netbsd32_to_ifreq(struct netbsd32_ifreq *, struct ifreq *, 83 u_long cmd); 84 static inline void netbsd32_to_ifconf(struct netbsd32_ifconf *, 85 struct ifconf *, u_long); 86 static inline void netbsd32_to_ifmediareq(struct netbsd32_ifmediareq *, 87 struct ifmediareq *, u_long); 88 static inline void netbsd32_to_ifdrv(struct netbsd32_ifdrv *, struct ifdrv *, 89 u_long); 90 static inline void netbsd32_to_sioc_vif_req(struct netbsd32_sioc_vif_req *, 91 struct sioc_vif_req *, u_long); 92 static inline void netbsd32_to_sioc_sg_req(struct netbsd32_sioc_sg_req *, 93 struct sioc_sg_req *, u_long); 94 static inline void netbsd32_from_partinfo(struct partinfo *, 95 struct netbsd32_partinfo *, u_long); 96 #if 0 97 static inline void netbsd32_from_format_op(struct format_op *, 98 struct netbsd32_format_op *, 99 u_long); 100 #endif 101 static inline void netbsd32_from_ifreq(struct ifreq *, 102 struct netbsd32_ifreq *, u_long); 103 static inline void netbsd32_from_ifconf(struct ifconf *, 104 struct netbsd32_ifconf *, u_long); 105 static inline void netbsd32_from_ifmediareq(struct ifmediareq *, 106 struct netbsd32_ifmediareq *, 107 u_long); 108 static inline void netbsd32_from_ifdrv(struct ifdrv *, 109 struct netbsd32_ifdrv *, u_long); 110 static inline void netbsd32_from_sioc_vif_req(struct sioc_vif_req *, 111 struct netbsd32_sioc_vif_req *, 112 u_long); 113 static inline void netbsd32_from_sioc_sg_req(struct sioc_sg_req *, 114 struct netbsd32_sioc_sg_req *, 115 u_long); 116 117 /* convert to/from different structures */ 118 119 static inline void 120 netbsd32_to_partinfo(struct netbsd32_partinfo *s32p, struct partinfo *p, u_long cmd) 121 { 122 123 p->disklab = (struct disklabel *)NETBSD32PTR64(s32p->disklab); 124 p->part = (struct partition *)NETBSD32PTR64(s32p->part); 125 } 126 127 #if 0 128 static inline void 129 netbsd32_to_format_op(struct netbsd32_format_op *s32p, struct format_op *p, u_long cmd) 130 { 131 132 p->df_buf = (char *)NETBSD32PTR64(s32p->df_buf); 133 p->df_count = s32p->df_count; 134 p->df_startblk = s32p->df_startblk; 135 memcpy(p->df_reg, s32p->df_reg, sizeof(s32p->df_reg)); 136 } 137 #endif 138 139 static inline void 140 netbsd32_to_ifreq(struct netbsd32_ifreq *s32p, struct ifreq *p, u_long cmd) 141 { 142 143 memcpy(p, s32p, sizeof *s32p); 144 /* 145 * XXX 146 * struct ifreq says the same, but sometimes the ifr_data 147 * union member needs to be converted to 64 bits... this 148 * is very driver specific and so we ignore it for now.. 149 */ 150 if (cmd == SIOCGIFDATA || cmd == SIOCZIFDATA) 151 p->ifr_data = (void *)NETBSD32PTR64(s32p->ifr_data); 152 } 153 154 static inline void 155 netbsd32_to_ifconf(struct netbsd32_ifconf *s32p, struct ifconf *p, u_long cmd) 156 { 157 158 p->ifc_len = s32p->ifc_len; 159 /* ifc_buf & ifc_req are the same size so this works */ 160 p->ifc_buf = (void *)NETBSD32PTR64(s32p->ifc_buf); 161 } 162 163 static inline void 164 netbsd32_to_ifmediareq(struct netbsd32_ifmediareq *s32p, struct ifmediareq *p, u_long cmd) 165 { 166 167 memcpy(p, s32p, sizeof *s32p); 168 p->ifm_ulist = (int *)NETBSD32PTR64(s32p->ifm_ulist); 169 } 170 171 static inline void 172 netbsd32_to_ifdrv(struct netbsd32_ifdrv *s32p, struct ifdrv *p, u_long cmd) 173 { 174 175 memcpy(p, s32p, sizeof *s32p); 176 p->ifd_data = (void *)NETBSD32PTR64(s32p->ifd_data); 177 } 178 179 static inline void 180 netbsd32_to_sioc_vif_req(struct netbsd32_sioc_vif_req *s32p, struct sioc_vif_req *p, u_long cmd) 181 { 182 183 p->vifi = s32p->vifi; 184 p->icount = (u_long)s32p->icount; 185 p->ocount = (u_long)s32p->ocount; 186 p->ibytes = (u_long)s32p->ibytes; 187 p->obytes = (u_long)s32p->obytes; 188 } 189 190 static inline void 191 netbsd32_to_sioc_sg_req(struct netbsd32_sioc_sg_req *s32p, struct sioc_sg_req *p, u_long cmd) 192 { 193 194 p->src = s32p->src; 195 p->grp = s32p->grp; 196 p->pktcnt = (u_long)s32p->pktcnt; 197 p->bytecnt = (u_long)s32p->bytecnt; 198 p->wrong_if = (u_long)s32p->wrong_if; 199 } 200 201 /* 202 * handle ioctl conversions from 64-bit kernel -> netbsd32 203 */ 204 205 static inline void 206 netbsd32_from_partinfo(struct partinfo *p, struct netbsd32_partinfo *s32p, u_long cmd) 207 { 208 209 NETBSD32PTR32(s32p->disklab, p->disklab); 210 NETBSD32PTR32(s32p->part, p->part); 211 } 212 213 #if 0 214 static inline void 215 netbsd32_from_format_op(struct format_op *p, struct netbsd32_format_op *s32p, u_long cmd) 216 { 217 218 /* filled in */ 219 #if 0 220 s32p->df_buf = (netbsd32_charp)p->df_buf; 221 #endif 222 s32p->df_count = p->df_count; 223 s32p->df_startblk = p->df_startblk; 224 memcpy(s32p->df_reg, p->df_reg, sizeof(p->df_reg)); 225 } 226 #endif 227 228 static inline void 229 netbsd32_from_ifreq(struct ifreq *p, struct netbsd32_ifreq *s32p, u_long cmd) 230 { 231 232 /* 233 * XXX 234 * struct ifreq says the same, but sometimes the ifr_data 235 * union member needs to be converted to 64 bits... this 236 * is very driver specific and so we ignore it for now.. 237 */ 238 *s32p->ifr_name = *p->ifr_name; 239 if (cmd == SIOCGIFDATA || cmd == SIOCZIFDATA) 240 NETBSD32PTR32(s32p->ifr_data, p->ifr_data); 241 } 242 243 static inline void 244 netbsd32_from_ifconf(struct ifconf *p, struct netbsd32_ifconf *s32p, u_long cmd) 245 { 246 247 s32p->ifc_len = p->ifc_len; 248 /* ifc_buf & ifc_req are the same size so this works */ 249 NETBSD32PTR32(s32p->ifc_buf, p->ifc_buf); 250 } 251 252 static inline void 253 netbsd32_from_ifmediareq(struct ifmediareq *p, struct netbsd32_ifmediareq *s32p, u_long cmd) 254 { 255 256 memcpy(s32p, p, sizeof *p); 257 /* filled in? */ 258 #if 0 259 s32p->ifm_ulist = (netbsd32_intp_t)p->ifm_ulist; 260 #endif 261 } 262 263 static inline void 264 netbsd32_from_ifdrv(struct ifdrv *p, struct netbsd32_ifdrv *s32p, u_long cmd) 265 { 266 267 memcpy(s32p, p, sizeof *p); 268 /* filled in? */ 269 #if 0 270 s32p->ifm_data = (netbsd32_u_longp_t)p->ifm_data; 271 #endif 272 } 273 274 static inline void 275 netbsd32_from_sioc_vif_req(struct sioc_vif_req *p, struct netbsd32_sioc_vif_req *s32p, u_long cmd) 276 { 277 278 s32p->vifi = p->vifi; 279 s32p->icount = (netbsd32_u_long)p->icount; 280 s32p->ocount = (netbsd32_u_long)p->ocount; 281 s32p->ibytes = (netbsd32_u_long)p->ibytes; 282 s32p->obytes = (netbsd32_u_long)p->obytes; 283 } 284 285 static inline void 286 netbsd32_from_sioc_sg_req(struct sioc_sg_req *p, struct netbsd32_sioc_sg_req *s32p, u_long cmd) 287 { 288 289 s32p->src = p->src; 290 s32p->grp = p->grp; 291 s32p->pktcnt = (netbsd32_u_long)p->pktcnt; 292 s32p->bytecnt = (netbsd32_u_long)p->bytecnt; 293 s32p->wrong_if = (netbsd32_u_long)p->wrong_if; 294 } 295 296 297 /* 298 * main ioctl syscall. 299 * 300 * ok, here we are in the biggy. we have to do fix ups depending 301 * on the ioctl command before and afterwards. 302 */ 303 int 304 netbsd32_ioctl(struct lwp *l, const struct netbsd32_ioctl_args *uap, register_t *retval) 305 { 306 /* { 307 syscallarg(int) fd; 308 syscallarg(netbsd32_u_long) com; 309 syscallarg(netbsd32_voidp) data; 310 } */ 311 struct proc *p = l->l_proc; 312 struct file *fp; 313 struct filedesc *fdp; 314 u_long com; 315 int error = 0; 316 u_int size, size32; 317 void *data, *memp = NULL; 318 void *data32, *memp32 = NULL; 319 unsigned fd; 320 fdfile_t *ff; 321 int tmp; 322 #define STK_PARAMS 128 323 u_long stkbuf[STK_PARAMS/sizeof(u_long)]; 324 u_long stkbuf32[STK_PARAMS/sizeof(u_long)]; 325 326 /* 327 * we need to translate some commands (_IOW) before calling sys_ioctl, 328 * some after (_IOR), and some both (_IOWR). 329 */ 330 #if 0 331 { 332 char *dirs[8] = { "NONE!", "VOID", "OUT", "VOID|OUT!", "IN", "VOID|IN!", 333 "INOUT", "VOID|IN|OUT!" }; 334 335 printf("netbsd32_ioctl(%d, %x, %x): %s group %c base %d len %d\n", 336 SCARG(uap, fd), SCARG(uap, com), SCARG(uap, data), 337 dirs[((SCARG(uap, com) & IOC_DIRMASK)>>29)], 338 IOCGROUP(SCARG(uap, com)), IOCBASECMD(SCARG(uap, com)), 339 IOCPARM_LEN(SCARG(uap, com))); 340 } 341 #endif 342 343 fdp = p->p_fd; 344 fd = SCARG(uap, fd); 345 if ((fp = fd_getfile(fd)) == NULL) 346 return (EBADF); 347 if ((fp->f_flag & (FREAD | FWRITE)) == 0) { 348 error = EBADF; 349 goto out; 350 } 351 352 ff = fdp->fd_ofiles[SCARG(uap, fd)]; 353 switch (com = SCARG(uap, com)) { 354 case FIOCLEX: 355 ff->ff_exclose = true; 356 fdp->fd_exclose = true; 357 goto out; 358 359 case FIONCLEX: 360 ff->ff_exclose = false; 361 goto out; 362 } 363 364 /* 365 * Interpret high order word to find amount of data to be 366 * copied to/from the user's address space. 367 */ 368 size = 0; 369 size32 = IOCPARM_LEN(com); 370 if (size32 > IOCPARM_MAX) { 371 error = ENOTTY; 372 goto out; 373 } 374 if (size32 > sizeof(stkbuf)) { 375 memp32 = kmem_alloc((size_t)size32, KM_SLEEP); 376 data32 = memp32; 377 } else 378 data32 = (void *)stkbuf32; 379 if (com&IOC_IN) { 380 if (size32) { 381 error = copyin(SCARG_P32(uap, data), data32, size32); 382 if (error) { 383 if (memp32) 384 kmem_free(memp32, (size_t)size32); 385 goto out; 386 } 387 ktrgenio(fd, UIO_WRITE, SCARG_P32(uap, data), 388 size32, 0); 389 } else 390 *(void **)data32 = SCARG_P32(uap, data); 391 } else if ((com&IOC_OUT) && size32) 392 /* 393 * Zero the buffer so the user always 394 * gets back something deterministic. 395 */ 396 memset(data32, 0, size32); 397 else if (com&IOC_VOID) 398 *(void **)data32 = SCARG_P32(uap, data); 399 400 /* 401 * convert various structures, pointers, and other objects that 402 * change size from 32 bit -> 64 bit, for all ioctl commands. 403 */ 404 switch (SCARG(uap, com)) { 405 case FIONBIO: 406 mutex_enter(&fp->f_lock); 407 if ((tmp = *(int *)data32) != 0) 408 fp->f_flag |= FNONBLOCK; 409 else 410 fp->f_flag &= ~FNONBLOCK; 411 mutex_exit(&fp->f_lock); 412 error = (*fp->f_ops->fo_ioctl)(fp, FIONBIO, (void *)&tmp); 413 break; 414 415 case FIOASYNC: 416 mutex_enter(&fp->f_lock); 417 if ((tmp = *(int *)data32) != 0) 418 fp->f_flag |= FASYNC; 419 else 420 fp->f_flag &= ~FASYNC; 421 mutex_exit(&fp->f_lock); 422 error = (*fp->f_ops->fo_ioctl)(fp, FIOASYNC, (void *)&tmp); 423 break; 424 425 case DIOCGPART32: 426 IOCTL_STRUCT_CONV_TO(DIOCGPART, partinfo); 427 #if 0 /* not implemented by anything */ 428 case DIOCRFORMAT32: 429 IOCTL_STRUCT_CONV_TO(DIOCRFORMAT, format_op); 430 case DIOCWFORMAT32: 431 IOCTL_STRUCT_CONV_TO(DIOCWFORMAT, format_op); 432 #endif 433 434 /* 435 * only a few ifreq syscalls need conversion and those are 436 * all driver specific... XXX 437 */ 438 #if 0 439 case SIOCGADDRROM3232: 440 IOCTL_STRUCT_CONV_TO(SIOCGADDRROM32, ifreq); 441 case SIOCGCHIPID32: 442 IOCTL_STRUCT_CONV_TO(SIOCGCHIPID, ifreq); 443 case SIOCSIFADDR32: 444 IOCTL_STRUCT_CONV_TO(SIOCSIFADDR, ifreq); 445 case OSIOCGIFADDR32: 446 IOCTL_STRUCT_CONV_TO(OSIOCGIFADDR, ifreq); 447 case SIOCGIFADDR32: 448 IOCTL_STRUCT_CONV_TO(SIOCGIFADDR, ifreq); 449 case SIOCSIFDSTADDR32: 450 IOCTL_STRUCT_CONV_TO(SIOCSIFDSTADDR, ifreq); 451 case OSIOCGIFDSTADDR32: 452 IOCTL_STRUCT_CONV_TO(OSIOCGIFDSTADDR, ifreq); 453 case SIOCGIFDSTADDR32: 454 IOCTL_STRUCT_CONV_TO(SIOCGIFDSTADDR, ifreq); 455 case OSIOCGIFBRDADDR32: 456 IOCTL_STRUCT_CONV_TO(OSIOCGIFBRDADDR, ifreq); 457 case SIOCGIFBRDADDR32: 458 IOCTL_STRUCT_CONV_TO(SIOCGIFBRDADDR, ifreq); 459 case SIOCSIFBRDADDR32: 460 IOCTL_STRUCT_CONV_TO(SIOCSIFBRDADDR, ifreq); 461 case OSIOCGIFNETMASK32: 462 IOCTL_STRUCT_CONV_TO(OSIOCGIFNETMASK, ifreq); 463 case SIOCGIFNETMASK32: 464 IOCTL_STRUCT_CONV_TO(SIOCGIFNETMASK, ifreq); 465 case SIOCSIFNETMASK32: 466 IOCTL_STRUCT_CONV_TO(SIOCSIFNETMASK, ifreq); 467 case SIOCGIFMETRIC32: 468 IOCTL_STRUCT_CONV_TO(SIOCGIFMETRIC, ifreq); 469 case SIOCSIFMETRIC32: 470 IOCTL_STRUCT_CONV_TO(SIOCSIFMETRIC, ifreq); 471 case SIOCDIFADDR32: 472 IOCTL_STRUCT_CONV_TO(SIOCDIFADDR, ifreq); 473 case SIOCADDMULTI32: 474 IOCTL_STRUCT_CONV_TO(SIOCADDMULTI, ifreq); 475 case SIOCDELMULTI32: 476 IOCTL_STRUCT_CONV_TO(SIOCDELMULTI, ifreq); 477 case SIOCSIFMEDIA32: 478 IOCTL_STRUCT_CONV_TO(SIOCSIFMEDIA, ifreq); 479 case SIOCSIFMTU32: 480 IOCTL_STRUCT_CONV_TO(SIOCSIFMTU, ifreq); 481 case SIOCGIFMTU32: 482 IOCTL_STRUCT_CONV_TO(SIOCGIFMTU, ifreq); 483 case BIOCGETIF32: 484 IOCTL_STRUCT_CONV_TO(BIOCGETIF, ifreq); 485 case BIOCSETIF32: 486 IOCTL_STRUCT_CONV_TO(BIOCSETIF, ifreq); 487 case SIOCPHASE132: 488 IOCTL_STRUCT_CONV_TO(SIOCPHASE1, ifreq); 489 case SIOCPHASE232: 490 IOCTL_STRUCT_CONV_TO(SIOCPHASE2, ifreq); 491 #endif 492 493 case OOSIOCGIFCONF32: 494 IOCTL_STRUCT_CONV_TO(OOSIOCGIFCONF, ifconf); 495 case OSIOCGIFCONF32: 496 IOCTL_STRUCT_CONV_TO(OSIOCGIFCONF, ifconf); 497 case SIOCGIFCONF32: 498 IOCTL_STRUCT_CONV_TO(SIOCGIFCONF, ifconf); 499 500 case SIOCGIFFLAGS32: 501 IOCTL_STRUCT_CONV_TO(SIOCGIFFLAGS, ifreq); 502 case SIOCSIFFLAGS32: 503 IOCTL_STRUCT_CONV_TO(SIOCSIFFLAGS, ifreq); 504 505 case SIOCGIFMEDIA32: 506 IOCTL_STRUCT_CONV_TO(SIOCGIFMEDIA, ifmediareq); 507 508 case SIOCSDRVSPEC32: 509 IOCTL_STRUCT_CONV_TO(SIOCSDRVSPEC, ifdrv); 510 511 case SIOCGETVIFCNT32: 512 IOCTL_STRUCT_CONV_TO(SIOCGETVIFCNT, sioc_vif_req); 513 514 case SIOCGETSGCNT32: 515 IOCTL_STRUCT_CONV_TO(SIOCGETSGCNT, sioc_sg_req); 516 517 default: 518 #ifdef NETBSD32_MD_IOCTL 519 error = netbsd32_md_ioctl(fp, com, data32, l); 520 #else 521 error = (*fp->f_ops->fo_ioctl)(fp, com, data32); 522 #endif 523 break; 524 } 525 526 if (error == EPASSTHROUGH) 527 error = ENOTTY; 528 529 /* 530 * Copy any data to user, size was 531 * already set and checked above. 532 */ 533 if (error == 0 && (com&IOC_OUT) && size32) { 534 error = copyout(data32, SCARG_P32(uap, data), size32); 535 ktrgenio(fd, UIO_READ, SCARG_P32(uap, data), 536 size32, error); 537 } 538 539 /* if we malloced data, free it here */ 540 if (memp32) 541 kmem_free(memp32, (size_t)size32); 542 if (memp) 543 kmem_free(memp, (size_t)size); 544 out: 545 fd_putfile(fd); 546 return (error); 547 } 548
Indexes created Mon Sep 22 21:09:42 GMT 2025