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10#include <linux/kernel.h>
11#include <linux/sched.h>
12#include <linux/capability.h>
13#include <linux/fs.h>
14#include <linux/mm.h>
15#include <linux/file.h>
16#include <linux/signal.h>
17#include <linux/resource.h>
18#include <linux/times.h>
19#include <linux/smp.h>
20#include <linux/sem.h>
21#include <linux/msg.h>
22#include <linux/shm.h>
23#include <linux/uio.h>
24#include <linux/nfs_fs.h>
25#include <linux/quota.h>
26#include <linux/poll.h>
27#include <linux/personality.h>
28#include <linux/stat.h>
29#include <linux/filter.h>
30#include <linux/highmem.h>
31#include <linux/highuid.h>
32#include <linux/mman.h>
33#include <linux/ipv6.h>
34#include <linux/in.h>
35#include <linux/icmpv6.h>
36#include <linux/syscalls.h>
37#include <linux/sysctl.h>
38#include <linux/binfmts.h>
39#include <linux/dnotify.h>
40#include <linux/security.h>
41#include <linux/compat.h>
42#include <linux/vfs.h>
43#include <linux/ptrace.h>
44#include <linux/slab.h>
45
46#include <asm/types.h>
47#include <asm/uaccess.h>
48#include <asm/fpumacro.h>
49#include <asm/mmu_context.h>
50#include <asm/compat_signal.h>
51
52#ifdef CONFIG_SYSVIPC
53asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
54{
55 int version;
56
57 version = call >> 16;
58 call &= 0xffff;
59
60 switch (call) {
61 case SEMTIMEDOP:
62 if (fifth)
63
64 return compat_sys_semtimedop((int)first,
65 compat_ptr(ptr), second,
66 compat_ptr(fifth));
67
68 case SEMOP:
69
70
71 return sys_semtimedop((int)first, compat_ptr(ptr), second,
72 NULL);
73 case SEMGET:
74
75 return sys_semget((int)first, (int)second, third);
76 case SEMCTL:
77
78 return compat_sys_semctl((int)first, (int)second, third,
79 compat_ptr(ptr));
80
81 case MSGSND:
82
83 return compat_sys_msgsnd((int)first, (int)second, third,
84 compat_ptr(ptr));
85 case MSGRCV:
86
87 return compat_sys_msgrcv((int)first, second, (int)fifth,
88 third, version, compat_ptr(ptr));
89 case MSGGET:
90
91 return sys_msgget((int)first, second);
92 case MSGCTL:
93
94 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
95
96 case SHMAT:
97
98 return compat_sys_shmat((int)first, second, third, version,
99 compat_ptr(ptr));
100 case SHMDT:
101 return sys_shmdt(compat_ptr(ptr));
102 case SHMGET:
103
104 return sys_shmget((int)first, second, third);
105 case SHMCTL:
106
107 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
108
109 default:
110 return -ENOSYS;
111 }
112
113 return -ENOSYS;
114}
115#endif
116
117asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
118{
119 if ((int)high < 0)
120 return -EINVAL;
121 else
122 return sys_truncate(path, (high << 32) | low);
123}
124
125asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
126{
127 if ((int)high < 0)
128 return -EINVAL;
129 else
130 return sys_ftruncate(fd, (high << 32) | low);
131}
132
133static int cp_compat_stat64(struct kstat *stat,
134 struct compat_stat64 __user *statbuf)
135{
136 int err;
137
138 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
139 err |= put_user(stat->ino, &statbuf->st_ino);
140 err |= put_user(stat->mode, &statbuf->st_mode);
141 err |= put_user(stat->nlink, &statbuf->st_nlink);
142 err |= put_user(stat->uid, &statbuf->st_uid);
143 err |= put_user(stat->gid, &statbuf->st_gid);
144 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
145 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
146 err |= put_user(stat->size, &statbuf->st_size);
147 err |= put_user(stat->blksize, &statbuf->st_blksize);
148 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
149 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
150 err |= put_user(stat->blocks, &statbuf->st_blocks);
151 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
152 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
153 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
154 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
155 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
156 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
157 err |= put_user(0, &statbuf->__unused4);
158 err |= put_user(0, &statbuf->__unused5);
159
160 return err;
161}
162
163asmlinkage long compat_sys_stat64(const char __user * filename,
164 struct compat_stat64 __user *statbuf)
165{
166 struct kstat stat;
167 int error = vfs_stat(filename, &stat);
168
169 if (!error)
170 error = cp_compat_stat64(&stat, statbuf);
171 return error;
172}
173
174asmlinkage long compat_sys_lstat64(const char __user * filename,
175 struct compat_stat64 __user *statbuf)
176{
177 struct kstat stat;
178 int error = vfs_lstat(filename, &stat);
179
180 if (!error)
181 error = cp_compat_stat64(&stat, statbuf);
182 return error;
183}
184
185asmlinkage long compat_sys_fstat64(unsigned int fd,
186 struct compat_stat64 __user * statbuf)
187{
188 struct kstat stat;
189 int error = vfs_fstat(fd, &stat);
190
191 if (!error)
192 error = cp_compat_stat64(&stat, statbuf);
193 return error;
194}
195
196asmlinkage long compat_sys_fstatat64(unsigned int dfd,
197 const char __user *filename,
198 struct compat_stat64 __user * statbuf, int flag)
199{
200 struct kstat stat;
201 int error;
202
203 error = vfs_fstatat(dfd, filename, &stat, flag);
204 if (error)
205 return error;
206 return cp_compat_stat64(&stat, statbuf);
207}
208
209asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
210{
211 return sys_sysfs(option, arg1, arg2);
212}
213
214asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
215{
216 struct timespec t;
217 int ret;
218 mm_segment_t old_fs = get_fs ();
219
220 set_fs (KERNEL_DS);
221 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
222 set_fs (old_fs);
223 if (put_compat_timespec(&t, interval))
224 return -EFAULT;
225 return ret;
226}
227
228asmlinkage long compat_sys_rt_sigprocmask(int how,
229 compat_sigset_t __user *set,
230 compat_sigset_t __user *oset,
231 compat_size_t sigsetsize)
232{
233 sigset_t s;
234 compat_sigset_t s32;
235 int ret;
236 mm_segment_t old_fs = get_fs();
237
238 if (set) {
239 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
240 return -EFAULT;
241 switch (_NSIG_WORDS) {
242 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
243 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
244 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
245 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
246 }
247 }
248 set_fs (KERNEL_DS);
249 ret = sys_rt_sigprocmask(how,
250 set ? (sigset_t __user *) &s : NULL,
251 oset ? (sigset_t __user *) &s : NULL,
252 sigsetsize);
253 set_fs (old_fs);
254 if (ret) return ret;
255 if (oset) {
256 switch (_NSIG_WORDS) {
257 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
258 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
259 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
260 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
261 }
262 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
263 return -EFAULT;
264 }
265 return 0;
266}
267
268asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
269 compat_size_t sigsetsize)
270{
271 sigset_t s;
272 compat_sigset_t s32;
273 int ret;
274 mm_segment_t old_fs = get_fs();
275
276 set_fs (KERNEL_DS);
277 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
278 set_fs (old_fs);
279 if (!ret) {
280 switch (_NSIG_WORDS) {
281 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
282 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
283 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
284 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
285 }
286 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
287 return -EFAULT;
288 }
289 return ret;
290}
291
292asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
293 struct compat_siginfo __user *uinfo)
294{
295 siginfo_t info;
296 int ret;
297 mm_segment_t old_fs = get_fs();
298
299 if (copy_siginfo_from_user32(&info, uinfo))
300 return -EFAULT;
301
302 set_fs (KERNEL_DS);
303 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
304 set_fs (old_fs);
305 return ret;
306}
307
308asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
309 struct old_sigaction32 __user *oact)
310{
311 struct k_sigaction new_ka, old_ka;
312 int ret;
313
314 WARN_ON_ONCE(sig >= 0);
315 sig = -sig;
316
317 if (act) {
318 compat_old_sigset_t mask;
319 u32 u_handler, u_restorer;
320
321 ret = get_user(u_handler, &act->sa_handler);
322 new_ka.sa.sa_handler = compat_ptr(u_handler);
323 ret |= __get_user(u_restorer, &act->sa_restorer);
324 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
325 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
326 ret |= __get_user(mask, &act->sa_mask);
327 if (ret)
328 return ret;
329 new_ka.ka_restorer = NULL;
330 siginitset(&new_ka.sa.sa_mask, mask);
331 }
332
333 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
334
335 if (!ret && oact) {
336 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
337 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
338 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
339 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
340 }
341
342 return ret;
343}
344
345asmlinkage long compat_sys_rt_sigaction(int sig,
346 struct sigaction32 __user *act,
347 struct sigaction32 __user *oact,
348 void __user *restorer,
349 compat_size_t sigsetsize)
350{
351 struct k_sigaction new_ka, old_ka;
352 int ret;
353 compat_sigset_t set32;
354
355
356 if (sigsetsize != sizeof(compat_sigset_t))
357 return -EINVAL;
358
359 if (act) {
360 u32 u_handler, u_restorer;
361
362 new_ka.ka_restorer = restorer;
363 ret = get_user(u_handler, &act->sa_handler);
364 new_ka.sa.sa_handler = compat_ptr(u_handler);
365 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
366 switch (_NSIG_WORDS) {
367 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
368 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
369 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
370 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
371 }
372 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
373 ret |= __get_user(u_restorer, &act->sa_restorer);
374 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
375 if (ret)
376 return -EFAULT;
377 }
378
379 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
380
381 if (!ret && oact) {
382 switch (_NSIG_WORDS) {
383 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
384 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
385 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
386 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
387 }
388 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
389 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
390 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
391 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
392 if (ret)
393 ret = -EFAULT;
394 }
395
396 return ret;
397}
398
399
400
401
402
403asmlinkage long sparc32_execve(struct pt_regs *regs)
404{
405 int error, base = 0;
406 char *filename;
407
408
409
410
411 if ((u32)regs->u_regs[UREG_G1] == 0)
412 base = 1;
413
414 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
415 error = PTR_ERR(filename);
416 if (IS_ERR(filename))
417 goto out;
418
419 error = compat_do_execve(filename,
420 compat_ptr(regs->u_regs[base + UREG_I1]),
421 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
422
423 putname(filename);
424
425 if (!error) {
426 fprs_write(0);
427 current_thread_info()->xfsr[0] = 0;
428 current_thread_info()->fpsaved[0] = 0;
429 regs->tstate &= ~TSTATE_PEF;
430 }
431out:
432 return error;
433}
434
435#ifdef CONFIG_MODULES
436
437asmlinkage long sys32_init_module(void __user *umod, u32 len,
438 const char __user *uargs)
439{
440 return sys_init_module(umod, len, uargs);
441}
442
443asmlinkage long sys32_delete_module(const char __user *name_user,
444 unsigned int flags)
445{
446 return sys_delete_module(name_user, flags);
447}
448
449#else
450
451asmlinkage long sys32_init_module(const char __user *name_user,
452 struct module __user *mod_user)
453{
454 return -ENOSYS;
455}
456
457asmlinkage long sys32_delete_module(const char __user *name_user)
458{
459 return -ENOSYS;
460}
461
462#endif
463
464asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
465 char __user *ubuf,
466 compat_size_t count,
467 unsigned long poshi,
468 unsigned long poslo)
469{
470 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
471}
472
473asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
474 char __user *ubuf,
475 compat_size_t count,
476 unsigned long poshi,
477 unsigned long poslo)
478{
479 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
480}
481
482asmlinkage long compat_sys_readahead(int fd,
483 unsigned long offhi,
484 unsigned long offlo,
485 compat_size_t count)
486{
487 return sys_readahead(fd, (offhi << 32) | offlo, count);
488}
489
490long compat_sys_fadvise64(int fd,
491 unsigned long offhi,
492 unsigned long offlo,
493 compat_size_t len, int advice)
494{
495 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
496}
497
498long compat_sys_fadvise64_64(int fd,
499 unsigned long offhi, unsigned long offlo,
500 unsigned long lenhi, unsigned long lenlo,
501 int advice)
502{
503 return sys_fadvise64_64(fd,
504 (offhi << 32) | offlo,
505 (lenhi << 32) | lenlo,
506 advice);
507}
508
509asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
510 compat_off_t __user *offset,
511 compat_size_t count)
512{
513 mm_segment_t old_fs = get_fs();
514 int ret;
515 off_t of;
516
517 if (offset && get_user(of, offset))
518 return -EFAULT;
519
520 set_fs(KERNEL_DS);
521 ret = sys_sendfile(out_fd, in_fd,
522 offset ? (off_t __user *) &of : NULL,
523 count);
524 set_fs(old_fs);
525
526 if (offset && put_user(of, offset))
527 return -EFAULT;
528
529 return ret;
530}
531
532asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
533 compat_loff_t __user *offset,
534 compat_size_t count)
535{
536 mm_segment_t old_fs = get_fs();
537 int ret;
538 loff_t lof;
539
540 if (offset && get_user(lof, offset))
541 return -EFAULT;
542
543 set_fs(KERNEL_DS);
544 ret = sys_sendfile64(out_fd, in_fd,
545 offset ? (loff_t __user *) &lof : NULL,
546 count);
547 set_fs(old_fs);
548
549 if (offset && put_user(lof, offset))
550 return -EFAULT;
551
552 return ret;
553}
554
555
556
557
558
559asmlinkage long sparc32_open(const char __user *filename,
560 int flags, int mode)
561{
562 return do_sys_open(AT_FDCWD, filename, flags, mode);
563}
564
565long sys32_lookup_dcookie(unsigned long cookie_high,
566 unsigned long cookie_low,
567 char __user *buf, size_t len)
568{
569 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
570 buf, len);
571}
572
573long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
574{
575 return sys_sync_file_range(fd,
576 (off_high << 32) | off_low,
577 (nb_high << 32) | nb_low,
578 flags);
579}
580
581asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
582 u32 lenhi, u32 lenlo)
583{
584 return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
585 ((loff_t)lenhi << 32) | lenlo);
586}
587
