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 | |