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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/utsname.h>
20#include <linux/smp.h>
21#include <linux/smp_lock.h>
22#include <linux/sem.h>
23#include <linux/msg.h>
24#include <linux/shm.h>
25#include <linux/slab.h>
26#include <linux/uio.h>
27#include <linux/nfs_fs.h>
28#include <linux/quota.h>
29#include <linux/module.h>
30#include <linux/sunrpc/svc.h>
31#include <linux/nfsd/nfsd.h>
32#include <linux/nfsd/cache.h>
33#include <linux/nfsd/xdr.h>
34#include <linux/nfsd/syscall.h>
35#include <linux/poll.h>
36#include <linux/personality.h>
37#include <linux/stat.h>
38#include <linux/filter.h>
39#include <linux/highmem.h>
40#include <linux/highuid.h>
41#include <linux/mman.h>
42#include <linux/ipv6.h>
43#include <linux/in.h>
44#include <linux/icmpv6.h>
45#include <linux/syscalls.h>
46#include <linux/sysctl.h>
47#include <linux/binfmts.h>
48#include <linux/dnotify.h>
49#include <linux/security.h>
50#include <linux/compat.h>
51#include <linux/vfs.h>
52#include <linux/netfilter_ipv4/ip_tables.h>
53#include <linux/ptrace.h>
54
55#include <asm/types.h>
56#include <asm/uaccess.h>
57#include <asm/fpumacro.h>
58#include <asm/mmu_context.h>
59#include <asm/compat_signal.h>
60
61#ifdef CONFIG_SYSVIPC
62asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
63{
64 int version;
65
66 version = call >> 16;
67 call &= 0xffff;
68
69 switch (call) {
70 case SEMTIMEDOP:
71 if (fifth)
72
73 return compat_sys_semtimedop((int)first,
74 compat_ptr(ptr), second,
75 compat_ptr(fifth));
76
77 case SEMOP:
78
79
80 return sys_semtimedop((int)first, compat_ptr(ptr), second,
81 NULL);
82 case SEMGET:
83
84 return sys_semget((int)first, (int)second, third);
85 case SEMCTL:
86
87 return compat_sys_semctl((int)first, (int)second, third,
88 compat_ptr(ptr));
89
90 case MSGSND:
91
92 return compat_sys_msgsnd((int)first, (int)second, third,
93 compat_ptr(ptr));
94 case MSGRCV:
95
96 return compat_sys_msgrcv((int)first, second, (int)fifth,
97 third, version, compat_ptr(ptr));
98 case MSGGET:
99
100 return sys_msgget((int)first, second);
101 case MSGCTL:
102
103 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
104
105 case SHMAT:
106
107 return compat_sys_shmat((int)first, second, third, version,
108 compat_ptr(ptr));
109 case SHMDT:
110 return sys_shmdt(compat_ptr(ptr));
111 case SHMGET:
112
113 return sys_shmget((int)first, second, third);
114 case SHMCTL:
115
116 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
117
118 default:
119 return -ENOSYS;
120 };
121
122 return -ENOSYS;
123}
124#endif
125
126asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
127{
128 if ((int)high < 0)
129 return -EINVAL;
130 else
131 return sys_truncate(path, (high << 32) | low);
132}
133
134asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
135{
136 if ((int)high < 0)
137 return -EINVAL;
138 else
139 return sys_ftruncate(fd, (high << 32) | low);
140}
141
142static int cp_compat_stat64(struct kstat *stat,
143 struct compat_stat64 __user *statbuf)
144{
145 int err;
146
147 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
148 err |= put_user(stat->ino, &statbuf->st_ino);
149 err |= put_user(stat->mode, &statbuf->st_mode);
150 err |= put_user(stat->nlink, &statbuf->st_nlink);
151 err |= put_user(stat->uid, &statbuf->st_uid);
152 err |= put_user(stat->gid, &statbuf->st_gid);
153 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
154 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
155 err |= put_user(stat->size, &statbuf->st_size);
156 err |= put_user(stat->blksize, &statbuf->st_blksize);
157 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
158 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
159 err |= put_user(stat->blocks, &statbuf->st_blocks);
160 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
161 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
162 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
163 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
164 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
165 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
166 err |= put_user(0, &statbuf->__unused4);
167 err |= put_user(0, &statbuf->__unused5);
168
169 return err;
170}
171
172asmlinkage long compat_sys_stat64(char __user * filename,
173 struct compat_stat64 __user *statbuf)
174{
175 struct kstat stat;
176 int error = vfs_stat(filename, &stat);
177
178 if (!error)
179 error = cp_compat_stat64(&stat, statbuf);
180 return error;
181}
182
183asmlinkage long compat_sys_lstat64(char __user * filename,
184 struct compat_stat64 __user *statbuf)
185{
186 struct kstat stat;
187 int error = vfs_lstat(filename, &stat);
188
189 if (!error)
190 error = cp_compat_stat64(&stat, statbuf);
191 return error;
192}
193
194asmlinkage long compat_sys_fstat64(unsigned int fd,
195 struct compat_stat64 __user * statbuf)
196{
197 struct kstat stat;
198 int error = vfs_fstat(fd, &stat);
199
200 if (!error)
201 error = cp_compat_stat64(&stat, statbuf);
202 return error;
203}
204
205asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
206 struct compat_stat64 __user * statbuf, int flag)
207{
208 struct kstat stat;
209 int error = -EINVAL;
210
211 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
212 goto out;
213
214 if (flag & AT_SYMLINK_NOFOLLOW)
215 error = vfs_lstat_fd(dfd, filename, &stat);
216 else
217 error = vfs_stat_fd(dfd, filename, &stat);
218
219 if (!error)
220 error = cp_compat_stat64(&stat, statbuf);
221
222out:
223 return error;
224}
225
226asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
227{
228 return sys_sysfs(option, arg1, arg2);
229}
230
231asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
232{
233 struct timespec t;
234 int ret;
235 mm_segment_t old_fs = get_fs ();
236
237 set_fs (KERNEL_DS);
238 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
239 set_fs (old_fs);
240 if (put_compat_timespec(&t, interval))
241 return -EFAULT;
242 return ret;
243}
244
245asmlinkage long compat_sys_rt_sigprocmask(int how,
246 compat_sigset_t __user *set,
247 compat_sigset_t __user *oset,
248 compat_size_t sigsetsize)
249{
250 sigset_t s;
251 compat_sigset_t s32;
252 int ret;
253 mm_segment_t old_fs = get_fs();
254
255 if (set) {
256 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
257 return -EFAULT;
258 switch (_NSIG_WORDS) {
259 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
260 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
261 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
262 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
263 }
264 }
265 set_fs (KERNEL_DS);
266 ret = sys_rt_sigprocmask(how,
267 set ? (sigset_t __user *) &s : NULL,
268 oset ? (sigset_t __user *) &s : NULL,
269 sigsetsize);
270 set_fs (old_fs);
271 if (ret) return ret;
272 if (oset) {
273 switch (_NSIG_WORDS) {
274 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
275 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
276 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
277 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
278 }
279 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
280 return -EFAULT;
281 }
282 return 0;
283}
284
285asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
286 compat_size_t sigsetsize)
287{
288 sigset_t s;
289 compat_sigset_t s32;
290 int ret;
291 mm_segment_t old_fs = get_fs();
292
293 set_fs (KERNEL_DS);
294 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
295 set_fs (old_fs);
296 if (!ret) {
297 switch (_NSIG_WORDS) {
298 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
299 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
300 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
301 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
302 }
303 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
304 return -EFAULT;
305 }
306 return ret;
307}
308
309asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
310 struct compat_siginfo __user *uinfo)
311{
312 siginfo_t info;
313 int ret;
314 mm_segment_t old_fs = get_fs();
315
316 if (copy_siginfo_from_user32(&info, uinfo))
317 return -EFAULT;
318
319 set_fs (KERNEL_DS);
320 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
321 set_fs (old_fs);
322 return ret;
323}
324
325asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
326 struct old_sigaction32 __user *oact)
327{
328 struct k_sigaction new_ka, old_ka;
329 int ret;
330
331 WARN_ON_ONCE(sig >= 0);
332 sig = -sig;
333
334 if (act) {
335 compat_old_sigset_t mask;
336 u32 u_handler, u_restorer;
337
338 ret = get_user(u_handler, &act->sa_handler);
339 new_ka.sa.sa_handler = compat_ptr(u_handler);
340 ret |= __get_user(u_restorer, &act->sa_restorer);
341 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
342 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
343 ret |= __get_user(mask, &act->sa_mask);
344 if (ret)
345 return ret;
346 new_ka.ka_restorer = NULL;
347 siginitset(&new_ka.sa.sa_mask, mask);
348 }
349
350 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
351
352 if (!ret && oact) {
353 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
354 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
355 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
356 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
357 }
358
359 return ret;
360}
361
362asmlinkage long compat_sys_rt_sigaction(int sig,
363 struct sigaction32 __user *act,
364 struct sigaction32 __user *oact,
365 void __user *restorer,
366 compat_size_t sigsetsize)
367{
368 struct k_sigaction new_ka, old_ka;
369 int ret;
370 compat_sigset_t set32;
371
372
373 if (sigsetsize != sizeof(compat_sigset_t))
374 return -EINVAL;
375
376 if (act) {
377 u32 u_handler, u_restorer;
378
379 new_ka.ka_restorer = restorer;
380 ret = get_user(u_handler, &act->sa_handler);
381 new_ka.sa.sa_handler = compat_ptr(u_handler);
382 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
383 switch (_NSIG_WORDS) {
384 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
385 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
386 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
387 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
388 }
389 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
390 ret |= __get_user(u_restorer, &act->sa_restorer);
391 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
392 if (ret)
393 return -EFAULT;
394 }
395
396 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
397
398 if (!ret && oact) {
399 switch (_NSIG_WORDS) {
400 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
401 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
402 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
403 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
404 }
405 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
406 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
407 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
408 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
409 if (ret)
410 ret = -EFAULT;
411 }
412
413 return ret;
414}
415
416
417
418
419
420asmlinkage long sparc32_execve(struct pt_regs *regs)
421{
422 int error, base = 0;
423 char *filename;
424
425
426
427
428 if ((u32)regs->u_regs[UREG_G1] == 0)
429 base = 1;
430
431 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
432 error = PTR_ERR(filename);
433 if (IS_ERR(filename))
434 goto out;
435
436 error = compat_do_execve(filename,
437 compat_ptr(regs->u_regs[base + UREG_I1]),
438 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
439
440 putname(filename);
441
442 if (!error) {
443 fprs_write(0);
444 current_thread_info()->xfsr[0] = 0;
445 current_thread_info()->fpsaved[0] = 0;
446 regs->tstate &= ~TSTATE_PEF;
447 }
448out:
449 return error;
450}
451
452#ifdef CONFIG_MODULES
453
454asmlinkage long sys32_init_module(void __user *umod, u32 len,
455 const char __user *uargs)
456{
457 return sys_init_module(umod, len, uargs);
458}
459
460asmlinkage long sys32_delete_module(const char __user *name_user,
461 unsigned int flags)
462{
463 return sys_delete_module(name_user, flags);
464}
465
466#else
467
468asmlinkage long sys32_init_module(const char __user *name_user,
469 struct module __user *mod_user)
470{
471 return -ENOSYS;
472}
473
474asmlinkage long sys32_delete_module(const char __user *name_user)
475{
476 return -ENOSYS;
477}
478
479#endif
480
481asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
482 char __user *ubuf,
483 compat_size_t count,
484 unsigned long poshi,
485 unsigned long poslo)
486{
487 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
488}
489
490asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
491 char __user *ubuf,
492 compat_size_t count,
493 unsigned long poshi,
494 unsigned long poslo)
495{
496 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
497}
498
499asmlinkage long compat_sys_readahead(int fd,
500 unsigned long offhi,
501 unsigned long offlo,
502 compat_size_t count)
503{
504 return sys_readahead(fd, (offhi << 32) | offlo, count);
505}
506
507long compat_sys_fadvise64(int fd,
508 unsigned long offhi,
509 unsigned long offlo,
510 compat_size_t len, int advice)
511{
512 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
513}
514
515long compat_sys_fadvise64_64(int fd,
516 unsigned long offhi, unsigned long offlo,
517 unsigned long lenhi, unsigned long lenlo,
518 int advice)
519{
520 return sys_fadvise64_64(fd,
521 (offhi << 32) | offlo,
522 (lenhi << 32) | lenlo,
523 advice);
524}
525
526asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
527 compat_off_t __user *offset,
528 compat_size_t count)
529{
530 mm_segment_t old_fs = get_fs();
531 int ret;
532 off_t of;
533
534 if (offset && get_user(of, offset))
535 return -EFAULT;
536
537 set_fs(KERNEL_DS);
538 ret = sys_sendfile(out_fd, in_fd,
539 offset ? (off_t __user *) &of : NULL,
540 count);
541 set_fs(old_fs);
542
543 if (offset && put_user(of, offset))
544 return -EFAULT;
545
546 return ret;
547}
548
549asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
550 compat_loff_t __user *offset,
551 compat_size_t count)
552{
553 mm_segment_t old_fs = get_fs();
554 int ret;
555 loff_t lof;
556
557 if (offset && get_user(lof, offset))
558 return -EFAULT;
559
560 set_fs(KERNEL_DS);
561 ret = sys_sendfile64(out_fd, in_fd,
562 offset ? (loff_t __user *) &lof : NULL,
563 count);
564 set_fs(old_fs);
565
566 if (offset && put_user(lof, offset))
567 return -EFAULT;
568
569 return ret;
570}
571
572
573
574
575
576asmlinkage long sparc32_open(const char __user *filename,
577 int flags, int mode)
578{
579 return do_sys_open(AT_FDCWD, filename, flags, mode);
580}
581
582extern unsigned long do_mremap(unsigned long addr,
583 unsigned long old_len, unsigned long new_len,
584 unsigned long flags, unsigned long new_addr);
585
586asmlinkage unsigned long sys32_mremap(unsigned long addr,
587 unsigned long old_len, unsigned long new_len,
588 unsigned long flags, u32 __new_addr)
589{
590 unsigned long ret = -EINVAL;
591 unsigned long new_addr = __new_addr;
592
593 if (unlikely(sparc_mmap_check(addr, old_len)))
594 goto out;
595 if (unlikely(sparc_mmap_check(new_addr, new_len)))
596 goto out;
597 down_write(¤t->mm->mmap_sem);
598 ret = do_mremap(addr, old_len, new_len, flags, new_addr);
599 up_write(¤t->mm->mmap_sem);
600out:
601 return ret;
602}
603
604struct __sysctl_args32 {
605 u32 name;
606 int nlen;
607 u32 oldval;
608 u32 oldlenp;
609 u32 newval;
610 u32 newlen;
611 u32 __unused[4];
612};
613
614asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
615{
616#ifndef CONFIG_SYSCTL_SYSCALL
617 return -ENOSYS;
618#else
619 struct __sysctl_args32 tmp;
620 int error;
621 size_t oldlen, __user *oldlenp = NULL;
622 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
623
624 if (copy_from_user(&tmp, args, sizeof(tmp)))
625 return -EFAULT;
626
627 if (tmp.oldval && tmp.oldlenp) {
628
629
630
631
632
633
634 if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
635 put_user(oldlen, (size_t __user *)addr))
636 return -EFAULT;
637 oldlenp = (size_t __user *)addr;
638 }
639
640 lock_kernel();
641 error = do_sysctl((int __user *)(unsigned long) tmp.name,
642 tmp.nlen,
643 (void __user *)(unsigned long) tmp.oldval,
644 oldlenp,
645 (void __user *)(unsigned long) tmp.newval,
646 tmp.newlen);
647 unlock_kernel();
648 if (oldlenp) {
649 if (!error) {
650 if (get_user(oldlen, (size_t __user *)addr) ||
651 put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
652 error = -EFAULT;
653 }
654 if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
655 error = -EFAULT;
656 }
657 return error;
658#endif
659}
660
661long sys32_lookup_dcookie(unsigned long cookie_high,
662 unsigned long cookie_low,
663 char __user *buf, size_t len)
664{
665 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
666 buf, len);
667}
668
669long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
670{
671 return sys_sync_file_range(fd,
672 (off_high << 32) | off_low,
673 (nb_high << 32) | nb_low,
674 flags);
675}
676
677asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
678 u32 lenhi, u32 lenlo)
679{
680 return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
681 ((loff_t)lenhi << 32) | lenlo);
682}
683
