| 1 | /* $NetBSD: linux32_unistd.c,v 1.39 2014/06/01 13:42:12 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_unistd.c,v 1.39 2014/06/01 13:42:12 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/kauth.h> |
| 50 | #include <sys/filedesc.h> |
| 51 | #include <sys/vfs_syscalls.h> |
| 52 | |
| 53 | #include <machine/types.h> |
| 54 | |
| 55 | #include <sys/syscallargs.h> |
| 56 | |
| 57 | #include <compat/netbsd32/netbsd32.h> |
| 58 | #include <compat/netbsd32/netbsd32_conv.h> |
| 59 | |
| 60 | #include <compat/linux/common/linux_types.h> |
| 61 | #include <compat/linux/common/linux_signal.h> |
| 62 | #include <compat/linux/common/linux_machdep.h> |
| 63 | #include <compat/linux/common/linux_misc.h> |
| 64 | #include <compat/linux/common/linux_oldolduname.h> |
| 65 | #include <compat/linux/common/linux_ipc.h> |
| 66 | #include <compat/linux/common/linux_sem.h> |
| 67 | #include <compat/linux/common/linux_fcntl.h> |
| 68 | #include <compat/linux/linux_syscallargs.h> |
| 69 | |
| 70 | #include <compat/linux32/common/linux32_types.h> |
| 71 | #include <compat/linux32/common/linux32_signal.h> |
| 72 | #include <compat/linux32/common/linux32_machdep.h> |
| 73 | #include <compat/linux32/common/linux32_sched.h> |
| 74 | #include <compat/linux32/common/linux32_sysctl.h> |
| 75 | #include <compat/linux32/common/linux32_socketcall.h> |
| 76 | #include <compat/linux32/linux32_syscallargs.h> |
| 77 | |
| 78 | static int linux32_select1(struct lwp *, register_t *, |
| 79 | int, fd_set *, fd_set *, fd_set *, struct timeval *); |
| 80 | |
| 81 | int |
| 82 | linux32_sys_brk(struct lwp *l, const struct linux32_sys_brk_args *uap, register_t *retval) |
| 83 | { |
| 84 | /* { |
| 85 | syscallarg(netbsd32_charp) nsize; |
| 86 | } */ |
| 87 | struct linux_sys_brk_args ua; |
| 88 | |
| 89 | NETBSD32TOP_UAP(nsize, char); |
| 90 | return linux_sys_brk(l, &ua, retval); |
| 91 | } |
| 92 | |
| 93 | int |
| 94 | linux32_sys_llseek(struct lwp *l, const struct linux32_sys_llseek_args *uap, register_t *retval) |
| 95 | { |
| 96 | /* { |
| 97 | syscallarg(int) fd; |
| 98 | syscallarg(u_int32_t) ohigh; |
| 99 | syscallarg(u_int32_t) olow; |
| 100 | syscallarg(netbsd32_voidp) res; |
| 101 | syscallarg(int) whence; |
| 102 | } */ |
| 103 | struct linux_sys_llseek_args ua; |
| 104 | |
| 105 | NETBSD32TO64_UAP(fd); |
| 106 | NETBSD32TO64_UAP(ohigh); |
| 107 | NETBSD32TO64_UAP(olow); |
| 108 | NETBSD32TOP_UAP(res, void); |
| 109 | NETBSD32TO64_UAP(whence); |
| 110 | |
| 111 | return linux_sys_llseek(l, &ua, retval); |
| 112 | } |
| 113 | |
| 114 | int |
| 115 | linux32_sys_select(struct lwp *l, const struct linux32_sys_select_args *uap, register_t *retval) |
| 116 | { |
| 117 | /* { |
| 118 | syscallarg(int) nfds; |
| 119 | syscallarg(netbsd32_fd_setp_t) readfds; |
| 120 | syscallarg(netbsd32_fd_setp_t) writefds; |
| 121 | syscallarg(netbsd32_fd_setp_t) exceptfds; |
| 122 | syscallarg(netbsd32_timeval50p_t) timeout; |
| 123 | } */ |
| 124 | |
| 125 | return linux32_select1(l, retval, SCARG(uap, nfds), |
| 126 | SCARG_P32(uap, readfds), |
| 127 | SCARG_P32(uap, writefds), |
| 128 | SCARG_P32(uap, exceptfds), |
| 129 | SCARG_P32(uap, timeout)); |
| 130 | } |
| 131 | |
| 132 | int |
| 133 | linux32_sys_oldselect(struct lwp *l, const struct linux32_sys_oldselect_args *uap, register_t *retval) |
| 134 | { |
| 135 | /* { |
| 136 | syscallarg(linux32_oldselectp_t) lsp; |
| 137 | } */ |
| 138 | struct linux32_oldselect lsp32; |
| 139 | int error; |
| 140 | |
| 141 | if ((error = copyin(SCARG_P32(uap, lsp), &lsp32, sizeof(lsp32))) != 0) |
| 142 | return error; |
| 143 | |
| 144 | return linux32_select1(l, retval, lsp32.nfds, |
| 145 | NETBSD32PTR64(lsp32.readfds), NETBSD32PTR64(lsp32.writefds), |
| 146 | NETBSD32PTR64(lsp32.exceptfds), NETBSD32PTR64(lsp32.timeout)); |
| 147 | } |
| 148 | |
| 149 | static int |
| 150 | linux32_select1(struct lwp *l, register_t *retval, int nfds, |
| 151 | fd_set *readfds, fd_set *writefds, fd_set *exceptfds, |
| 152 | struct timeval *timeout) |
| 153 | { |
| 154 | struct timespec ts0, ts1, uts, *ts = NULL; |
| 155 | struct netbsd32_timeval50 utv32; |
| 156 | int error; |
| 157 | |
| 158 | |
| 159 | /* |
| 160 | * Store current time for computation of the amount of |
| 161 | * time left. |
| 162 | */ |
| 163 | if (timeout) { |
| 164 | if ((error = copyin(timeout, &utv32, sizeof(utv32)))) |
| 165 | return error; |
| 166 | |
| 167 | uts.tv_sec = utv32.tv_sec; |
| 168 | uts.tv_nsec = utv32.tv_usec * 1000; |
| 169 | |
| 170 | if (itimespecfix(&uts)) { |
| 171 | /* |
| 172 | * The timeval was invalid. Convert it to something |
| 173 | * valid that will act as it does under Linux. |
| 174 | */ |
| 175 | uts.tv_sec += uts.tv_nsec / 1000000000; |
| 176 | uts.tv_nsec %= 1000000000; |
| 177 | if (uts.tv_nsec < 0) { |
| 178 | uts.tv_sec -= 1; |
| 179 | uts.tv_nsec += 1000000000; |
| 180 | } |
| 181 | if (uts.tv_sec < 0) |
| 182 | timespecclear(&uts); |
| 183 | } |
| 184 | nanotime(&ts0); |
| 185 | ts = &uts; |
| 186 | } else |
| 187 | timespecclear(&uts); /* XXX GCC4 */ |
| 188 | |
| 189 | error = selcommon(retval, nfds, readfds, writefds, exceptfds, ts, NULL); |
| 190 | |
| 191 | if (error) { |
| 192 | /* |
| 193 | * See fs/select.c in the Linux kernel. Without this, |
| 194 | * Maelstrom doesn't work. |
| 195 | */ |
| 196 | if (error == ERESTART) |
| 197 | error = EINTR; |
| 198 | return error; |
| 199 | } |
| 200 | |
| 201 | if (timeout) { |
| 202 | if (*retval) { |
| 203 | /* |
| 204 | * Compute how much time was left of the timeout, |
| 205 | * by subtracting the current time and the time |
| 206 | * before we started the call, and subtracting |
| 207 | * that result from the user-supplied value. |
| 208 | */ |
| 209 | nanotime(&ts1); |
| 210 | timespecsub(&ts1, &ts0, &ts1); |
| 211 | timespecsub(&uts, &ts1, &uts); |
| 212 | if (uts.tv_sec < 0) |
| 213 | timespecclear(&uts); |
| 214 | } else { |
| 215 | timespecclear(&uts); |
| 216 | } |
| 217 | |
| 218 | utv32.tv_sec = uts.tv_sec; |
| 219 | utv32.tv_usec = uts.tv_nsec / 1000; |
| 220 | |
| 221 | if ((error = copyout(&utv32, timeout, sizeof(utv32)))) |
| 222 | return error; |
| 223 | } |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | static int |
| 229 | linux32_pipe(struct lwp *l, int *fd, register_t *retval) |
| 230 | { |
| 231 | /* { |
| 232 | syscallarg(netbsd32_intp) fd; |
| 233 | } */ |
| 234 | int error; |
| 235 | int pfds[2]; |
| 236 | |
| 237 | pfds[0] = (int)retval[0]; |
| 238 | pfds[1] = (int)retval[1]; |
| 239 | |
| 240 | if ((error = copyout(pfds, fd, 2 * sizeof(*fd))) != 0) |
| 241 | return error; |
| 242 | |
| 243 | retval[0] = 0; |
| 244 | retval[1] = 0; |
| 245 | |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | int |
| 250 | linux32_sys_pipe(struct lwp *l, const struct linux32_sys_pipe_args *uap, |
| 251 | register_t *retval) |
| 252 | { |
| 253 | int error; |
| 254 | if ((error = pipe1(l, retval, 0))) |
| 255 | return error; |
| 256 | return linux32_pipe(l, SCARG_P32(uap, fd), retval); |
| 257 | } |
| 258 | |
| 259 | int |
| 260 | linux32_sys_pipe2(struct lwp *l, const struct linux32_sys_pipe2_args *uap, |
| 261 | register_t *retval) |
| 262 | { |
| 263 | int flags, error; |
| 264 | |
| 265 | flags = linux_to_bsd_ioflags(SCARG(uap, flags)); |
| 266 | if ((flags & ~(O_CLOEXEC|O_NONBLOCK)) != 0) |
| 267 | return EINVAL; |
| 268 | |
| 269 | if ((error = pipe1(l, retval, flags))) |
| 270 | return error; |
| 271 | |
| 272 | return linux32_pipe(l, SCARG_P32(uap, fd), retval); |
| 273 | } |
| 274 | |
| 275 | int |
| 276 | linux32_sys_dup3(struct lwp *l, const struct linux32_sys_dup3_args *uap, |
| 277 | register_t *retval) |
| 278 | { |
| 279 | /* { |
| 280 | syscallarg(int) from; |
| 281 | syscallarg(int) to; |
| 282 | syscallarg(int) flags; |
| 283 | } */ |
| 284 | struct linux_sys_dup3_args ua; |
| 285 | |
| 286 | NETBSD32TO64_UAP(from); |
| 287 | NETBSD32TO64_UAP(to); |
| 288 | NETBSD32TO64_UAP(flags); |
| 289 | |
| 290 | return linux_sys_dup3(l, &ua, retval); |
| 291 | } |
| 292 | |
| 293 | |
| 294 | int |
| 295 | linux32_sys_openat(struct lwp *l, const struct linux32_sys_openat_args *uap, register_t *retval) |
| 296 | { |
| 297 | /* { |
| 298 | syscallarg(int) fd; |
| 299 | syscallarg(const netbsd32_charp) path; |
| 300 | syscallarg(int) flags; |
| 301 | syscallarg(int) mode; |
| 302 | } */ |
| 303 | struct linux_sys_openat_args ua; |
| 304 | |
| 305 | NETBSD32TO64_UAP(fd); |
| 306 | NETBSD32TOP_UAP(path, const char); |
| 307 | NETBSD32TO64_UAP(flags); |
| 308 | NETBSD32TO64_UAP(mode); |
| 309 | |
| 310 | return linux_sys_openat(l, &ua, retval); |
| 311 | } |
| 312 | |
| 313 | int |
| 314 | linux32_sys_mknodat(struct lwp *l, const struct linux32_sys_mknodat_args *uap, register_t *retval) |
| 315 | { |
| 316 | /* { |
| 317 | syscallarg(int) fd; |
| 318 | syscallarg(const netbsd32_charp) path; |
| 319 | syscallarg(linux_umode_t) mode; |
| 320 | syscallarg(unsigned) dev; |
| 321 | } */ |
| 322 | struct linux_sys_mknodat_args ua; |
| 323 | |
| 324 | NETBSD32TO64_UAP(fd); |
| 325 | NETBSD32TOP_UAP(path, const char); |
| 326 | NETBSD32TO64_UAP(mode); |
| 327 | NETBSD32TO64_UAP(dev); |
| 328 | |
| 329 | return linux_sys_mknodat(l, &ua, retval); |
| 330 | } |
| 331 | |
| 332 | int |
| 333 | linux32_sys_linkat(struct lwp *l, const struct linux32_sys_linkat_args *uap, register_t *retval) |
| 334 | { |
| 335 | /* { |
| 336 | syscallarg(int) fd1; |
| 337 | syscallarg(netbsd32_charp) name1; |
| 338 | syscallarg(int) fd2; |
| 339 | syscallarg(netbsd32_charp) name2; |
| 340 | syscallarg(int) flags; |
| 341 | } */ |
| 342 | int fd1 = SCARG(uap, fd1); |
| 343 | const char *name1 = SCARG_P32(uap, name1); |
| 344 | int fd2 = SCARG(uap, fd2); |
| 345 | const char *name2 = SCARG_P32(uap, name2); |
| 346 | int follow; |
| 347 | |
| 348 | follow = SCARG(uap, flags) & LINUX_AT_SYMLINK_FOLLOW; |
| 349 | |
| 350 | return do_sys_linkat(l, fd1, name1, fd2, name2, follow, retval); |
| 351 | } |
| 352 | |
| 353 | int |
| 354 | linux32_sys_unlink(struct lwp *l, const struct linux32_sys_unlink_args *uap, register_t *retval) |
| 355 | { |
| 356 | /* { |
| 357 | syscallarg(const netbsd32_charp) path; |
| 358 | } */ |
| 359 | struct linux_sys_unlink_args ua; |
| 360 | |
| 361 | NETBSD32TOP_UAP(path, const char); |
| 362 | |
| 363 | return linux_sys_unlink(l, &ua, retval); |
| 364 | } |
| 365 | |
| 366 | int |
| 367 | linux32_sys_unlinkat(struct lwp *l, const struct linux32_sys_unlinkat_args *uap, register_t *retval) |
| 368 | { |
| 369 | /* { |
| 370 | syscallarg(int) fd; |
| 371 | syscallarg(const netbsd32_charp) path; |
| 372 | syscallarg(int) flag; |
| 373 | } */ |
| 374 | struct linux_sys_unlinkat_args ua; |
| 375 | |
| 376 | NETBSD32TO64_UAP(fd); |
| 377 | NETBSD32TOP_UAP(path, const char); |
| 378 | NETBSD32TO64_UAP(flag); |
| 379 | |
| 380 | return linux_sys_unlinkat(l, &ua, retval); |
| 381 | } |
| 382 | |
| 383 | int |
| 384 | linux32_sys_fchmodat(struct lwp *l, const struct linux32_sys_fchmodat_args *uap, register_t *retval) |
| 385 | { |
| 386 | /* { |
| 387 | syscallarg(int) fd; |
| 388 | syscallarg(netbsd_charp) path; |
| 389 | syscallarg(linux_umode_t) mode; |
| 390 | } */ |
| 391 | |
| 392 | return do_sys_chmodat(l, SCARG(uap, fd), SCARG_P32(uap, path), |
| 393 | SCARG(uap, mode), AT_SYMLINK_FOLLOW); |
| 394 | } |
| 395 | |
| 396 | int |
| 397 | linux32_sys_fchownat(struct lwp *l, const struct linux32_sys_fchownat_args *uap, register_t *retval) |
| 398 | { |
| 399 | /* { |
| 400 | syscallarg(int) fd; |
| 401 | syscallarg(netbsd_charp) path; |
| 402 | syscallarg(uid_t) owner; |
| 403 | syscallarg(gid_t) group; |
| 404 | syscallarg(int) flag; |
| 405 | } */ |
| 406 | int flag; |
| 407 | |
| 408 | flag = linux_to_bsd_atflags(SCARG(uap, flag)); |
| 409 | return do_sys_chownat(l, SCARG(uap, fd), SCARG_P32(uap, path), |
| 410 | SCARG(uap, owner), SCARG(uap, group), flag); |
| 411 | } |
| 412 | |
| 413 | int |
| 414 | linux32_sys_faccessat(struct lwp *l, const struct linux32_sys_faccessat_args *uap, register_t *retval) |
| 415 | { |
| 416 | /* { |
| 417 | syscallarg(int) fd; |
| 418 | syscallarg(netbsd_charp) path; |
| 419 | syscallarg(int) amode; |
| 420 | } */ |
| 421 | |
| 422 | return do_sys_accessat(l, SCARG(uap, fd), SCARG_P32(uap, path), |
| 423 | SCARG(uap, amode), AT_SYMLINK_FOLLOW); |
| 424 | } |
| 425 | |
| 426 | int |
| 427 | linux32_sys_utimensat(struct lwp *l, const struct linux32_sys_utimensat_args *uap, register_t *retval) |
| 428 | { |
| 429 | /* { |
| 430 | syscallarg(int) fd; |
| 431 | syscallarg(const netbsd32_charp) path; |
| 432 | syscallarg(const linux32_timespecp_t) times; |
| 433 | syscallarg(int) flags; |
| 434 | } */ |
| 435 | int error; |
| 436 | struct linux32_timespec lts[2]; |
| 437 | struct timespec *tsp = NULL, ts[2]; |
| 438 | |
| 439 | if (SCARG_P32(uap, times)) { |
| 440 | error = copyin(SCARG_P32(uap, times), <s, sizeof(lts)); |
| 441 | if (error != 0) |
| 442 | return error; |
| 443 | linux32_to_native_timespec(&ts[0], <s[0]); |
| 444 | linux32_to_native_timespec(&ts[1], <s[1]); |
| 445 | tsp = ts; |
| 446 | } |
| 447 | |
| 448 | return linux_do_sys_utimensat(l, SCARG(uap, fd), SCARG_P32(uap, path), |
| 449 | tsp, SCARG(uap, flag), retval); |
| 450 | } |
| 451 | |
| 452 | int |
| 453 | linux32_sys_creat(struct lwp *l, const struct linux32_sys_creat_args *uap, register_t *retval) |
| 454 | { |
| 455 | /* { |
| 456 | syscallarg(const netbsd32_charp) path; |
| 457 | syscallarg(int) mode; |
| 458 | } */ |
| 459 | struct sys_open_args ua; |
| 460 | |
| 461 | NETBSD32TOP_UAP(path, const char); |
| 462 | SCARG(&ua, flags) = O_CREAT | O_TRUNC | O_WRONLY; |
| 463 | NETBSD32TO64_UAP(mode); |
| 464 | |
| 465 | return sys_open(l, &ua, retval); |
| 466 | } |
| 467 | |
| 468 | int |
| 469 | linux32_sys_mknod(struct lwp *l, const struct linux32_sys_mknod_args *uap, register_t *retval) |
| 470 | { |
| 471 | /* { |
| 472 | syscallarg(const netbsd32_charp) path; |
| 473 | syscallarg(int) mode; |
| 474 | syscallarg(int) dev; |
| 475 | } */ |
| 476 | struct linux_sys_mknod_args ua; |
| 477 | |
| 478 | NETBSD32TOP_UAP(path, const char); |
| 479 | NETBSD32TO64_UAP(mode); |
| 480 | NETBSD32TO64_UAP(dev); |
| 481 | |
| 482 | return linux_sys_mknod(l, &ua, retval); |
| 483 | } |
| 484 | |
| 485 | int |
| 486 | linux32_sys_break(struct lwp *l, const struct linux32_sys_break_args *uap, register_t *retval) |
| 487 | { |
| 488 | #if 0 |
| 489 | /* { |
| 490 | syscallarg(const netbsd32_charp) nsize; |
| 491 | } */ |
| 492 | #endif |
| 493 | |
| 494 | return ENOSYS; |
| 495 | } |
| 496 | |
| 497 | int |
| 498 | linux32_sys_swapon(struct lwp *l, const struct linux32_sys_swapon_args *uap, register_t *retval) |
| 499 | { |
| 500 | /* { |
| 501 | syscallarg(const netbsd32_charp) name; |
| 502 | } */ |
| 503 | struct sys_swapctl_args ua; |
| 504 | |
| 505 | SCARG(&ua, cmd) = SWAP_ON; |
| 506 | SCARG(&ua, arg) = SCARG_P32(uap, name); |
| 507 | SCARG(&ua, misc) = 0; /* priority */ |
| 508 | return (sys_swapctl(l, &ua, retval)); |
| 509 | } |
| 510 | |
| 511 | int |
| 512 | linux32_sys_swapoff(struct lwp *l, const struct linux32_sys_swapoff_args *uap, register_t *retval) |
| 513 | { |
| 514 | /* { |
| 515 | syscallarg(const netbsd32_charp) path; |
| 516 | } */ |
| 517 | struct sys_swapctl_args ua; |
| 518 | |
| 519 | SCARG(&ua, cmd) = SWAP_OFF; |
| 520 | SCARG(&ua, arg) = SCARG_P32(uap, path); |
| 521 | SCARG(&ua, misc) = 0; /* priority */ |
| 522 | return (sys_swapctl(l, &ua, retval)); |
| 523 | } |
| 524 | |
| 525 | |
| 526 | int |
| 527 | linux32_sys_reboot(struct lwp *l, const struct linux32_sys_reboot_args *uap, register_t *retval) |
| 528 | { |
| 529 | /* { |
| 530 | syscallarg(int) magic1; |
| 531 | syscallarg(int) magic2; |
| 532 | syscallarg(int) cmd; |
| 533 | syscallarg(netbsd32_voidp) arg; |
| 534 | } */ |
| 535 | struct linux_sys_reboot_args ua; |
| 536 | |
| 537 | NETBSD32TO64_UAP(magic1); |
| 538 | NETBSD32TO64_UAP(magic2); |
| 539 | NETBSD32TO64_UAP(cmd); |
| 540 | NETBSD32TOP_UAP(arg, void); |
| 541 | |
| 542 | return linux_sys_reboot(l, &ua, retval); |
| 543 | } |
| 544 | |
| 545 | int |
| 546 | linux32_sys_setresuid(struct lwp *l, const struct linux32_sys_setresuid_args *uap, register_t *retval) |
| 547 | { |
| 548 | /* { |
| 549 | syscallarg(uid_t) ruid; |
| 550 | syscallarg(uid_t) euid; |
| 551 | syscallarg(uid_t) suid; |
| 552 | } */ |
| 553 | struct linux_sys_setresuid_args ua; |
| 554 | |
| 555 | NETBSD32TO64_UAP(ruid); |
| 556 | NETBSD32TO64_UAP(euid); |
| 557 | NETBSD32TO64_UAP(suid); |
| 558 | |
| 559 | return linux_sys_setresuid(l, &ua, retval); |
| 560 | } |
| 561 | |
| 562 | int |
| 563 | linux32_sys_getresuid(struct lwp *l, const struct linux32_sys_getresuid_args *uap, register_t *retval) |
| 564 | { |
| 565 | /* { |
| 566 | syscallarg(linux32_uidp_t) ruid; |
| 567 | syscallarg(linux32_uidp_t) euid; |
| 568 | syscallarg(linux32_uidp_t) suid; |
| 569 | } */ |
| 570 | kauth_cred_t pc = l->l_cred; |
| 571 | int error; |
| 572 | uid_t uid; |
| 573 | |
| 574 | uid = kauth_cred_getuid(pc); |
| 575 | if ((error = copyout(&uid, SCARG_P32(uap, ruid), sizeof(uid_t))) != 0) |
| 576 | return error; |
| 577 | |
| 578 | uid = kauth_cred_geteuid(pc); |
| 579 | if ((error = copyout(&uid, SCARG_P32(uap, euid), sizeof(uid_t))) != 0) |
| 580 | return error; |
| 581 | |
| 582 | uid = kauth_cred_getsvuid(pc); |
| 583 | return copyout(&uid, SCARG_P32(uap, suid), sizeof(uid_t)); |
| 584 | } |
| 585 | |
| 586 | int |
| 587 | linux32_sys_setresgid(struct lwp *l, const struct linux32_sys_setresgid_args *uap, register_t *retval) |
| 588 | { |
| 589 | /* { |
| 590 | syscallarg(gid_t) rgid; |
| 591 | syscallarg(gid_t) egid; |
| 592 | syscallarg(gid_t) sgid; |
| 593 | } */ |
| 594 | struct linux_sys_setresgid_args ua; |
| 595 | |
| 596 | NETBSD32TO64_UAP(rgid); |
| 597 | NETBSD32TO64_UAP(egid); |
| 598 | NETBSD32TO64_UAP(sgid); |
| 599 | |
| 600 | return linux_sys_setresgid(l, &ua, retval); |
| 601 | } |
| 602 | |
| 603 | int |
| 604 | linux32_sys_getresgid(struct lwp *l, const struct linux32_sys_getresgid_args *uap, register_t *retval) |
| 605 | { |
| 606 | /* { |
| 607 | syscallarg(linux32_gidp_t) rgid; |
| 608 | syscallarg(linux32_gidp_t) egid; |
| 609 | syscallarg(linux32_gidp_t) sgid; |
| 610 | } */ |
| 611 | kauth_cred_t pc = l->l_cred; |
| 612 | int error; |
| 613 | gid_t gid; |
| 614 | |
| 615 | gid = kauth_cred_getgid(pc); |
| 616 | if ((error = copyout(&gid, SCARG_P32(uap, rgid), sizeof(gid_t))) != 0) |
| 617 | return error; |
| 618 | |
| 619 | gid = kauth_cred_getegid(pc); |
| 620 | if ((error = copyout(&gid, SCARG_P32(uap, egid), sizeof(gid_t))) != 0) |
| 621 | return error; |
| 622 | |
| 623 | gid = kauth_cred_getsvgid(pc); |
| 624 | return copyout(&gid, SCARG_P32(uap, sgid), sizeof(gid_t)); |
| 625 | } |
| 626 | |
| 627 | int |
| 628 | linux32_sys_nice(struct lwp *l, const struct linux32_sys_nice_args *uap, register_t *retval) |
| 629 | { |
| 630 | /* { |
| 631 | syscallarg(int) incr; |
| 632 | } */ |
| 633 | struct proc *p = l->l_proc; |
| 634 | struct sys_setpriority_args bsa; |
| 635 | int error; |
| 636 | |
| 637 | SCARG(&bsa, which) = PRIO_PROCESS; |
| 638 | SCARG(&bsa, who) = 0; |
| 639 | SCARG(&bsa, prio) = p->p_nice - NZERO + SCARG(uap, incr); |
| 640 | |
| 641 | error = sys_setpriority(l, &bsa, retval); |
| 642 | return (error) ? EPERM : 0; |
| 643 | } |
| 644 | |
| 645 | int |
| 646 | linux32_sys_alarm(struct lwp *l, const struct linux32_sys_alarm_args *uap, register_t *retval) |
| 647 | { |
| 648 | /* { |
| 649 | syscallarg(unsigned int) secs; |
| 650 | } */ |
| 651 | struct linux_sys_alarm_args ua; |
| 652 | |
| 653 | NETBSD32TO64_UAP(secs); |
| 654 | |
| 655 | return linux_sys_alarm(l, &ua, retval); |
| 656 | } |
| 657 | |
| 658 | int |
| 659 | linux32_sys_fdatasync(struct lwp *l, const struct linux32_sys_fdatasync_args *uap, register_t *retval) |
| 660 | { |
| 661 | /* { |
| 662 | syscallarg(int) fd; |
| 663 | } */ |
| 664 | struct linux_sys_fdatasync_args ua; |
| 665 | |
| 666 | NETBSD32TO64_UAP(fd); |
| 667 | |
| 668 | return linux_sys_fdatasync(l, &ua, retval); |
| 669 | } |
| 670 | |
| 671 | int |
| 672 | linux32_sys_setfsuid(struct lwp *l, const struct linux32_sys_setfsuid_args *uap, register_t *retval) |
| 673 | { |
| 674 | /* { |
| 675 | syscallarg(uid_t) uid; |
| 676 | } */ |
| 677 | struct linux_sys_setfsuid_args ua; |
| 678 | |
| 679 | NETBSD32TO64_UAP(uid); |
| 680 | |
| 681 | return linux_sys_setfsuid(l, &ua, retval); |
| 682 | } |
| 683 | |
| 684 | int |
| 685 | linux32_sys_setfsgid(struct lwp *l, const struct linux32_sys_setfsgid_args *uap, register_t *retval) |
| 686 | { |
| 687 | /* { |
| 688 | syscallarg(gid_t) gid; |
| 689 | } */ |
| 690 | struct linux_sys_setfsgid_args ua; |
| 691 | |
| 692 | NETBSD32TO64_UAP(gid); |
| 693 | |
| 694 | return linux_sys_setfsgid(l, &ua, retval); |
| 695 | } |
| 696 | |
| 697 | /* |
| 698 | * pread(2). |
| 699 | */ |
| 700 | int |
| 701 | linux32_sys_pread(struct lwp *l, |
| 702 | const struct linux32_sys_pread_args *uap, register_t *retval) |
| 703 | { |
| 704 | /* { |
| 705 | syscallarg(int) fd; |
| 706 | syscallarg(netbsd32_voidp) buf; |
| 707 | syscallarg(netbsd32_size_t) nbyte; |
| 708 | syscallarg(netbsd32_off_t) offset; |
| 709 | } */ |
| 710 | struct sys_pread_args pra; |
| 711 | |
| 712 | SCARG(&pra, fd) = SCARG(uap, fd); |
| 713 | SCARG(&pra, buf) = SCARG_P32(uap, buf); |
| 714 | SCARG(&pra, nbyte) = SCARG(uap, nbyte); |
| 715 | SCARG(&pra, PAD) = 0; |
| 716 | SCARG(&pra, offset) = SCARG(uap, offset); |
| 717 | |
| 718 | return sys_pread(l, &pra, retval); |
| 719 | } |
| 720 | |
| 721 | /* |
| 722 | * pwrite(2). |
| 723 | */ |
| 724 | int |
| 725 | linux32_sys_pwrite(struct lwp *l, |
| 726 | const struct linux32_sys_pwrite_args *uap, register_t *retval) |
| 727 | { |
| 728 | /* { |
| 729 | syscallarg(int) fd; |
| 730 | syscallarg(const netbsd32_voidp) buf; |
| 731 | syscallarg(netbsd32_size_t) nbyte; |
| 732 | syscallarg(netbsd32_off_t) offset; |
| 733 | } */ |
| 734 | struct sys_pwrite_args pra; |
| 735 | |
| 736 | SCARG(&pra, fd) = SCARG(uap, fd); |
| 737 | SCARG(&pra, buf) = SCARG_P32(uap, buf); |
| 738 | SCARG(&pra, nbyte) = SCARG(uap, nbyte); |
| 739 | SCARG(&pra, PAD) = 0; |
| 740 | SCARG(&pra, offset) = SCARG(uap, offset); |
| 741 | |
| 742 | return sys_pwrite(l, &pra, retval); |
| 743 | } |
| 744 | |
| 745 | |