Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls. | |
3 | * | |
4 | * Copyright (C) 2001 IBM | |
5 | * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
6 | * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) | |
7 | * | |
8 | * These routines maintain argument size conversion between 32bit and 64bit | |
9 | * environment. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | */ | |
16 | ||
1da177e4 LT |
17 | #include <linux/kernel.h> |
18 | #include <linux/sched.h> | |
19 | #include <linux/fs.h> | |
20 | #include <linux/mm.h> | |
21 | #include <linux/file.h> | |
22 | #include <linux/signal.h> | |
23 | #include <linux/resource.h> | |
24 | #include <linux/times.h> | |
25 | #include <linux/utsname.h> | |
1da177e4 LT |
26 | #include <linux/smp.h> |
27 | #include <linux/smp_lock.h> | |
28 | #include <linux/sem.h> | |
29 | #include <linux/msg.h> | |
30 | #include <linux/shm.h> | |
1da177e4 LT |
31 | #include <linux/poll.h> |
32 | #include <linux/personality.h> | |
33 | #include <linux/stat.h> | |
1da177e4 | 34 | #include <linux/mman.h> |
1da177e4 | 35 | #include <linux/in.h> |
1da177e4 LT |
36 | #include <linux/syscalls.h> |
37 | #include <linux/unistd.h> | |
38 | #include <linux/sysctl.h> | |
39 | #include <linux/binfmts.h> | |
1da177e4 LT |
40 | #include <linux/security.h> |
41 | #include <linux/compat.h> | |
42 | #include <linux/ptrace.h> | |
1da177e4 LT |
43 | #include <linux/elf.h> |
44 | ||
1da177e4 LT |
45 | #include <asm/ptrace.h> |
46 | #include <asm/types.h> | |
47 | #include <asm/ipc.h> | |
48 | #include <asm/uaccess.h> | |
49 | #include <asm/unistd.h> | |
50 | #include <asm/semaphore.h> | |
1da177e4 LT |
51 | #include <asm/time.h> |
52 | #include <asm/mmu_context.h> | |
d387899f | 53 | #include <asm/ppc-pci.h> |
1da177e4 LT |
54 | |
55 | /* readdir & getdents */ | |
56 | #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de))) | |
57 | #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1)) | |
58 | ||
59 | struct old_linux_dirent32 { | |
60 | u32 d_ino; | |
61 | u32 d_offset; | |
62 | unsigned short d_namlen; | |
63 | char d_name[1]; | |
64 | }; | |
65 | ||
66 | struct readdir_callback32 { | |
67 | struct old_linux_dirent32 __user * dirent; | |
68 | int count; | |
69 | }; | |
70 | ||
71 | static int fillonedir(void * __buf, const char * name, int namlen, | |
afefdbb2 | 72 | off_t offset, u64 ino, unsigned int d_type) |
1da177e4 LT |
73 | { |
74 | struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf; | |
75 | struct old_linux_dirent32 __user * dirent; | |
afefdbb2 | 76 | ino_t d_ino; |
1da177e4 LT |
77 | |
78 | if (buf->count) | |
79 | return -EINVAL; | |
afefdbb2 DH |
80 | d_ino = ino; |
81 | if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) | |
82 | return -EOVERFLOW; | |
1da177e4 LT |
83 | buf->count++; |
84 | dirent = buf->dirent; | |
afefdbb2 | 85 | put_user(d_ino, &dirent->d_ino); |
1da177e4 LT |
86 | put_user(offset, &dirent->d_offset); |
87 | put_user(namlen, &dirent->d_namlen); | |
88 | copy_to_user(dirent->d_name, name, namlen); | |
89 | put_user(0, dirent->d_name + namlen); | |
90 | return 0; | |
91 | } | |
92 | ||
93 | asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count) | |
94 | { | |
95 | int error = -EBADF; | |
96 | struct file * file; | |
97 | struct readdir_callback32 buf; | |
98 | ||
99 | file = fget(fd); | |
100 | if (!file) | |
101 | goto out; | |
102 | ||
103 | buf.count = 0; | |
104 | buf.dirent = dirent; | |
105 | ||
106 | error = vfs_readdir(file, (filldir_t)fillonedir, &buf); | |
107 | if (error < 0) | |
108 | goto out_putf; | |
109 | error = buf.count; | |
110 | ||
111 | out_putf: | |
112 | fput(file); | |
113 | out: | |
114 | return error; | |
115 | } | |
116 | ||
1da177e4 LT |
117 | asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, |
118 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
119 | compat_uptr_t tvp_x) | |
120 | { | |
121 | /* sign extend n */ | |
122 | return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); | |
123 | } | |
124 | ||
125 | int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf) | |
126 | { | |
afefdbb2 | 127 | compat_ino_t ino; |
1da177e4 LT |
128 | long err; |
129 | ||
130 | if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) || | |
131 | !new_valid_dev(stat->rdev)) | |
132 | return -EOVERFLOW; | |
133 | ||
afefdbb2 DH |
134 | ino = stat->ino; |
135 | if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino) | |
136 | return -EOVERFLOW; | |
137 | ||
1da177e4 LT |
138 | err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT; |
139 | err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev); | |
afefdbb2 | 140 | err |= __put_user(ino, &statbuf->st_ino); |
1da177e4 LT |
141 | err |= __put_user(stat->mode, &statbuf->st_mode); |
142 | err |= __put_user(stat->nlink, &statbuf->st_nlink); | |
143 | err |= __put_user(stat->uid, &statbuf->st_uid); | |
144 | err |= __put_user(stat->gid, &statbuf->st_gid); | |
145 | err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev); | |
146 | err |= __put_user(stat->size, &statbuf->st_size); | |
147 | err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime); | |
148 | err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec); | |
149 | err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime); | |
150 | err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec); | |
151 | err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime); | |
152 | err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec); | |
153 | err |= __put_user(stat->blksize, &statbuf->st_blksize); | |
154 | err |= __put_user(stat->blocks, &statbuf->st_blocks); | |
155 | err |= __put_user(0, &statbuf->__unused4[0]); | |
156 | err |= __put_user(0, &statbuf->__unused4[1]); | |
157 | ||
158 | return err; | |
159 | } | |
160 | ||
161 | /* Note: it is necessary to treat option as an unsigned int, | |
162 | * with the corresponding cast to a signed int to insure that the | |
163 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
164 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
165 | */ | |
b09a4913 | 166 | asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2) |
1da177e4 LT |
167 | { |
168 | return sys_sysfs((int)option, arg1, arg2); | |
169 | } | |
170 | ||
b09a4913 | 171 | asmlinkage long compat_sys_pause(void) |
1da177e4 LT |
172 | { |
173 | current->state = TASK_INTERRUPTIBLE; | |
174 | schedule(); | |
175 | ||
176 | return -ERESTARTNOHAND; | |
177 | } | |
178 | ||
1da177e4 LT |
179 | static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i) |
180 | { | |
181 | long usec; | |
182 | ||
183 | if (!access_ok(VERIFY_READ, i, sizeof(*i))) | |
184 | return -EFAULT; | |
185 | if (__get_user(o->tv_sec, &i->tv_sec)) | |
186 | return -EFAULT; | |
187 | if (__get_user(usec, &i->tv_usec)) | |
188 | return -EFAULT; | |
189 | o->tv_nsec = usec * 1000; | |
190 | return 0; | |
191 | } | |
192 | ||
193 | static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i) | |
194 | { | |
195 | return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || | |
196 | (__put_user(i->tv_sec, &o->tv_sec) | | |
197 | __put_user(i->tv_usec, &o->tv_usec))); | |
198 | } | |
199 | ||
200 | struct sysinfo32 { | |
201 | s32 uptime; | |
202 | u32 loads[3]; | |
203 | u32 totalram; | |
204 | u32 freeram; | |
205 | u32 sharedram; | |
206 | u32 bufferram; | |
207 | u32 totalswap; | |
208 | u32 freeswap; | |
209 | unsigned short procs; | |
210 | unsigned short pad; | |
211 | u32 totalhigh; | |
212 | u32 freehigh; | |
213 | u32 mem_unit; | |
214 | char _f[20-2*sizeof(int)-sizeof(int)]; | |
215 | }; | |
216 | ||
b09a4913 | 217 | asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info) |
1da177e4 LT |
218 | { |
219 | struct sysinfo s; | |
220 | int ret, err; | |
221 | int bitcount=0; | |
222 | mm_segment_t old_fs = get_fs (); | |
223 | ||
224 | /* The __user cast is valid due to set_fs() */ | |
225 | set_fs (KERNEL_DS); | |
226 | ret = sys_sysinfo((struct sysinfo __user *)&s); | |
227 | set_fs (old_fs); | |
228 | ||
229 | /* Check to see if any memory value is too large for 32-bit and | |
230 | * scale down if needed. | |
231 | */ | |
232 | if ((s.totalram >> 32) || (s.totalswap >> 32)) { | |
233 | while (s.mem_unit < PAGE_SIZE) { | |
234 | s.mem_unit <<= 1; | |
235 | bitcount++; | |
236 | } | |
237 | s.totalram >>=bitcount; | |
238 | s.freeram >>= bitcount; | |
239 | s.sharedram >>= bitcount; | |
240 | s.bufferram >>= bitcount; | |
241 | s.totalswap >>= bitcount; | |
242 | s.freeswap >>= bitcount; | |
243 | s.totalhigh >>= bitcount; | |
244 | s.freehigh >>= bitcount; | |
245 | } | |
246 | ||
247 | err = put_user (s.uptime, &info->uptime); | |
248 | err |= __put_user (s.loads[0], &info->loads[0]); | |
249 | err |= __put_user (s.loads[1], &info->loads[1]); | |
250 | err |= __put_user (s.loads[2], &info->loads[2]); | |
251 | err |= __put_user (s.totalram, &info->totalram); | |
252 | err |= __put_user (s.freeram, &info->freeram); | |
253 | err |= __put_user (s.sharedram, &info->sharedram); | |
254 | err |= __put_user (s.bufferram, &info->bufferram); | |
255 | err |= __put_user (s.totalswap, &info->totalswap); | |
256 | err |= __put_user (s.freeswap, &info->freeswap); | |
257 | err |= __put_user (s.procs, &info->procs); | |
258 | err |= __put_user (s.totalhigh, &info->totalhigh); | |
259 | err |= __put_user (s.freehigh, &info->freehigh); | |
260 | err |= __put_user (s.mem_unit, &info->mem_unit); | |
261 | if (err) | |
262 | return -EFAULT; | |
263 | ||
264 | return ret; | |
265 | } | |
266 | ||
267 | ||
268 | ||
269 | ||
270 | /* Translations due to time_t size differences. Which affects all | |
271 | sorts of things, like timeval and itimerval. */ | |
272 | extern struct timezone sys_tz; | |
273 | ||
b09a4913 | 274 | asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) |
1da177e4 LT |
275 | { |
276 | if (tv) { | |
277 | struct timeval ktv; | |
278 | do_gettimeofday(&ktv); | |
279 | if (put_tv32(tv, &ktv)) | |
280 | return -EFAULT; | |
281 | } | |
282 | if (tz) { | |
283 | if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) | |
284 | return -EFAULT; | |
285 | } | |
286 | ||
287 | return 0; | |
288 | } | |
289 | ||
290 | ||
291 | ||
b09a4913 | 292 | asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) |
1da177e4 LT |
293 | { |
294 | struct timespec kts; | |
295 | struct timezone ktz; | |
296 | ||
297 | if (tv) { | |
298 | if (get_ts32(&kts, tv)) | |
299 | return -EFAULT; | |
300 | } | |
301 | if (tz) { | |
302 | if (copy_from_user(&ktz, tz, sizeof(ktz))) | |
303 | return -EFAULT; | |
304 | } | |
305 | ||
306 | return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); | |
307 | } | |
308 | ||
309 | #ifdef CONFIG_SYSVIPC | |
b09a4913 | 310 | long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, |
1da177e4 LT |
311 | u32 fifth) |
312 | { | |
313 | int version; | |
314 | ||
315 | version = call >> 16; /* hack for backward compatibility */ | |
316 | call &= 0xffff; | |
317 | ||
318 | switch (call) { | |
319 | ||
320 | case SEMTIMEDOP: | |
321 | if (fifth) | |
322 | /* sign extend semid */ | |
323 | return compat_sys_semtimedop((int)first, | |
324 | compat_ptr(ptr), second, | |
325 | compat_ptr(fifth)); | |
326 | /* else fall through for normal semop() */ | |
327 | case SEMOP: | |
328 | /* struct sembuf is the same on 32 and 64bit :)) */ | |
329 | /* sign extend semid */ | |
330 | return sys_semtimedop((int)first, compat_ptr(ptr), second, | |
331 | NULL); | |
332 | case SEMGET: | |
333 | /* sign extend key, nsems */ | |
334 | return sys_semget((int)first, (int)second, third); | |
335 | case SEMCTL: | |
336 | /* sign extend semid, semnum */ | |
337 | return compat_sys_semctl((int)first, (int)second, third, | |
338 | compat_ptr(ptr)); | |
339 | ||
340 | case MSGSND: | |
341 | /* sign extend msqid */ | |
342 | return compat_sys_msgsnd((int)first, (int)second, third, | |
343 | compat_ptr(ptr)); | |
344 | case MSGRCV: | |
345 | /* sign extend msqid, msgtyp */ | |
346 | return compat_sys_msgrcv((int)first, second, (int)fifth, | |
347 | third, version, compat_ptr(ptr)); | |
348 | case MSGGET: | |
349 | /* sign extend key */ | |
350 | return sys_msgget((int)first, second); | |
351 | case MSGCTL: | |
352 | /* sign extend msqid */ | |
353 | return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); | |
354 | ||
355 | case SHMAT: | |
356 | /* sign extend shmid */ | |
357 | return compat_sys_shmat((int)first, second, third, version, | |
358 | compat_ptr(ptr)); | |
359 | case SHMDT: | |
360 | return sys_shmdt(compat_ptr(ptr)); | |
361 | case SHMGET: | |
362 | /* sign extend key_t */ | |
363 | return sys_shmget((int)first, second, third); | |
364 | case SHMCTL: | |
365 | /* sign extend shmid */ | |
366 | return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); | |
367 | ||
368 | default: | |
369 | return -ENOSYS; | |
370 | } | |
371 | ||
372 | return -ENOSYS; | |
373 | } | |
374 | #endif | |
375 | ||
376 | /* Note: it is necessary to treat out_fd and in_fd as unsigned ints, | |
377 | * with the corresponding cast to a signed int to insure that the | |
378 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
379 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
380 | */ | |
b09a4913 | 381 | asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count) |
1da177e4 LT |
382 | { |
383 | mm_segment_t old_fs = get_fs(); | |
384 | int ret; | |
385 | off_t of; | |
386 | off_t __user *up; | |
387 | ||
388 | if (offset && get_user(of, offset)) | |
389 | return -EFAULT; | |
390 | ||
391 | /* The __user pointer cast is valid because of the set_fs() */ | |
392 | set_fs(KERNEL_DS); | |
393 | up = offset ? (off_t __user *) &of : NULL; | |
394 | ret = sys_sendfile((int)out_fd, (int)in_fd, up, count); | |
395 | set_fs(old_fs); | |
396 | ||
397 | if (offset && put_user(of, offset)) | |
398 | return -EFAULT; | |
399 | ||
400 | return ret; | |
401 | } | |
402 | ||
b09a4913 | 403 | asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count) |
1da177e4 LT |
404 | { |
405 | mm_segment_t old_fs = get_fs(); | |
406 | int ret; | |
407 | loff_t lof; | |
408 | loff_t __user *up; | |
409 | ||
410 | if (offset && get_user(lof, offset)) | |
411 | return -EFAULT; | |
412 | ||
413 | /* The __user pointer cast is valid because of the set_fs() */ | |
414 | set_fs(KERNEL_DS); | |
415 | up = offset ? (loff_t __user *) &lof : NULL; | |
416 | ret = sys_sendfile64(out_fd, in_fd, up, count); | |
417 | set_fs(old_fs); | |
418 | ||
419 | if (offset && put_user(lof, offset)) | |
420 | return -EFAULT; | |
421 | ||
422 | return ret; | |
423 | } | |
424 | ||
b09a4913 | 425 | long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2, |
1da177e4 LT |
426 | unsigned long a3, unsigned long a4, unsigned long a5, |
427 | struct pt_regs *regs) | |
428 | { | |
429 | int error; | |
430 | char * filename; | |
431 | ||
432 | filename = getname((char __user *) a0); | |
433 | error = PTR_ERR(filename); | |
434 | if (IS_ERR(filename)) | |
435 | goto out; | |
436 | flush_fp_to_thread(current); | |
437 | flush_altivec_to_thread(current); | |
438 | ||
439 | error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs); | |
440 | ||
441 | if (error == 0) { | |
442 | task_lock(current); | |
443 | current->ptrace &= ~PT_DTRACE; | |
444 | task_unlock(current); | |
445 | } | |
446 | putname(filename); | |
447 | ||
448 | out: | |
449 | return error; | |
450 | } | |
451 | ||
1da177e4 LT |
452 | /* Note: it is necessary to treat option as an unsigned int, |
453 | * with the corresponding cast to a signed int to insure that the | |
454 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
455 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
456 | */ | |
b09a4913 | 457 | asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5) |
1da177e4 LT |
458 | { |
459 | return sys_prctl((int)option, | |
460 | (unsigned long) arg2, | |
461 | (unsigned long) arg3, | |
462 | (unsigned long) arg4, | |
463 | (unsigned long) arg5); | |
464 | } | |
465 | ||
466 | /* Note: it is necessary to treat pid as an unsigned int, | |
467 | * with the corresponding cast to a signed int to insure that the | |
468 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
469 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
470 | */ | |
b09a4913 | 471 | asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval) |
1da177e4 LT |
472 | { |
473 | struct timespec t; | |
474 | int ret; | |
475 | mm_segment_t old_fs = get_fs (); | |
476 | ||
477 | /* The __user pointer cast is valid because of the set_fs() */ | |
478 | set_fs (KERNEL_DS); | |
479 | ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t); | |
480 | set_fs (old_fs); | |
481 | if (put_compat_timespec(&t, interval)) | |
482 | return -EFAULT; | |
483 | return ret; | |
484 | } | |
485 | ||
1da177e4 LT |
486 | /* Note: it is necessary to treat mode as an unsigned int, |
487 | * with the corresponding cast to a signed int to insure that the | |
488 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
489 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
490 | */ | |
b09a4913 | 491 | asmlinkage long compat_sys_access(const char __user * filename, u32 mode) |
1da177e4 LT |
492 | { |
493 | return sys_access(filename, (int)mode); | |
494 | } | |
495 | ||
496 | ||
497 | /* Note: it is necessary to treat mode as an unsigned int, | |
498 | * with the corresponding cast to a signed int to insure that the | |
499 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
500 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
501 | */ | |
b09a4913 | 502 | asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode) |
1da177e4 LT |
503 | { |
504 | return sys_creat(pathname, (int)mode); | |
505 | } | |
506 | ||
507 | ||
508 | /* Note: it is necessary to treat pid and options as unsigned ints, | |
509 | * with the corresponding cast to a signed int to insure that the | |
510 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
511 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
512 | */ | |
b09a4913 | 513 | asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options) |
1da177e4 LT |
514 | { |
515 | return sys_waitpid((int)pid, stat_addr, (int)options); | |
516 | } | |
517 | ||
518 | ||
519 | /* Note: it is necessary to treat gidsetsize as an unsigned int, | |
520 | * with the corresponding cast to a signed int to insure that the | |
521 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
522 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
523 | */ | |
b09a4913 | 524 | asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist) |
1da177e4 LT |
525 | { |
526 | return sys_getgroups((int)gidsetsize, grouplist); | |
527 | } | |
528 | ||
529 | ||
530 | /* Note: it is necessary to treat pid as an unsigned int, | |
531 | * with the corresponding cast to a signed int to insure that the | |
532 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
533 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
534 | */ | |
b09a4913 | 535 | asmlinkage long compat_sys_getpgid(u32 pid) |
1da177e4 LT |
536 | { |
537 | return sys_getpgid((int)pid); | |
538 | } | |
539 | ||
540 | ||
1da177e4 LT |
541 | |
542 | /* Note: it is necessary to treat pid as an unsigned int, | |
543 | * with the corresponding cast to a signed int to insure that the | |
544 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
545 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
546 | */ | |
b09a4913 | 547 | asmlinkage long compat_sys_getsid(u32 pid) |
1da177e4 LT |
548 | { |
549 | return sys_getsid((int)pid); | |
550 | } | |
551 | ||
552 | ||
553 | /* Note: it is necessary to treat pid and sig as unsigned ints, | |
554 | * with the corresponding cast to a signed int to insure that the | |
555 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
556 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
557 | */ | |
b09a4913 | 558 | asmlinkage long compat_sys_kill(u32 pid, u32 sig) |
1da177e4 LT |
559 | { |
560 | return sys_kill((int)pid, (int)sig); | |
561 | } | |
562 | ||
563 | ||
564 | /* Note: it is necessary to treat mode as an unsigned int, | |
565 | * with the corresponding cast to a signed int to insure that the | |
566 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
567 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
568 | */ | |
b09a4913 | 569 | asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode) |
1da177e4 LT |
570 | { |
571 | return sys_mkdir(pathname, (int)mode); | |
572 | } | |
573 | ||
b09a4913 | 574 | long compat_sys_nice(u32 increment) |
1da177e4 LT |
575 | { |
576 | /* sign extend increment */ | |
577 | return sys_nice((int)increment); | |
578 | } | |
579 | ||
580 | off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin) | |
581 | { | |
582 | /* sign extend n */ | |
583 | return sys_lseek(fd, (int)offset, origin); | |
584 | } | |
585 | ||
1da177e4 LT |
586 | /* Note: it is necessary to treat bufsiz as an unsigned int, |
587 | * with the corresponding cast to a signed int to insure that the | |
588 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
589 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
590 | */ | |
b09a4913 | 591 | asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz) |
1da177e4 LT |
592 | { |
593 | return sys_readlink(path, buf, (int)bufsiz); | |
594 | } | |
595 | ||
596 | /* Note: it is necessary to treat option as an unsigned int, | |
597 | * with the corresponding cast to a signed int to insure that the | |
598 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
599 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
600 | */ | |
b09a4913 | 601 | asmlinkage long compat_sys_sched_get_priority_max(u32 policy) |
1da177e4 LT |
602 | { |
603 | return sys_sched_get_priority_max((int)policy); | |
604 | } | |
605 | ||
606 | ||
607 | /* Note: it is necessary to treat policy as an unsigned int, | |
608 | * with the corresponding cast to a signed int to insure that the | |
609 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
610 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
611 | */ | |
b09a4913 | 612 | asmlinkage long compat_sys_sched_get_priority_min(u32 policy) |
1da177e4 LT |
613 | { |
614 | return sys_sched_get_priority_min((int)policy); | |
615 | } | |
616 | ||
617 | ||
618 | /* Note: it is necessary to treat pid as an unsigned int, | |
619 | * with the corresponding cast to a signed int to insure that the | |
620 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
621 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
622 | */ | |
b09a4913 | 623 | asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param) |
1da177e4 LT |
624 | { |
625 | return sys_sched_getparam((int)pid, param); | |
626 | } | |
627 | ||
628 | ||
629 | /* Note: it is necessary to treat pid as an unsigned int, | |
630 | * with the corresponding cast to a signed int to insure that the | |
631 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
632 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
633 | */ | |
b09a4913 | 634 | asmlinkage long compat_sys_sched_getscheduler(u32 pid) |
1da177e4 LT |
635 | { |
636 | return sys_sched_getscheduler((int)pid); | |
637 | } | |
638 | ||
639 | ||
640 | /* Note: it is necessary to treat pid as an unsigned int, | |
641 | * with the corresponding cast to a signed int to insure that the | |
642 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
643 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
644 | */ | |
b09a4913 | 645 | asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param) |
1da177e4 LT |
646 | { |
647 | return sys_sched_setparam((int)pid, param); | |
648 | } | |
649 | ||
650 | ||
651 | /* Note: it is necessary to treat pid and policy as unsigned ints, | |
652 | * with the corresponding cast to a signed int to insure that the | |
653 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
654 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
655 | */ | |
b09a4913 | 656 | asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param) |
1da177e4 LT |
657 | { |
658 | return sys_sched_setscheduler((int)pid, (int)policy, param); | |
659 | } | |
660 | ||
661 | ||
662 | /* Note: it is necessary to treat len as an unsigned int, | |
663 | * with the corresponding cast to a signed int to insure that the | |
664 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
665 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
666 | */ | |
b09a4913 | 667 | asmlinkage long compat_sys_setdomainname(char __user *name, u32 len) |
1da177e4 LT |
668 | { |
669 | return sys_setdomainname(name, (int)len); | |
670 | } | |
671 | ||
672 | ||
673 | /* Note: it is necessary to treat gidsetsize as an unsigned int, | |
674 | * with the corresponding cast to a signed int to insure that the | |
675 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
676 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
677 | */ | |
b09a4913 | 678 | asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist) |
1da177e4 LT |
679 | { |
680 | return sys_setgroups((int)gidsetsize, grouplist); | |
681 | } | |
682 | ||
683 | ||
b09a4913 | 684 | asmlinkage long compat_sys_sethostname(char __user *name, u32 len) |
1da177e4 LT |
685 | { |
686 | /* sign extend len */ | |
687 | return sys_sethostname(name, (int)len); | |
688 | } | |
689 | ||
690 | ||
691 | /* Note: it is necessary to treat pid and pgid as unsigned ints, | |
692 | * with the corresponding cast to a signed int to insure that the | |
693 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
694 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
695 | */ | |
b09a4913 | 696 | asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid) |
1da177e4 LT |
697 | { |
698 | return sys_setpgid((int)pid, (int)pgid); | |
699 | } | |
700 | ||
b09a4913 | 701 | long compat_sys_getpriority(u32 which, u32 who) |
79c2cc7b AB |
702 | { |
703 | /* sign extend which and who */ | |
704 | return sys_getpriority((int)which, (int)who); | |
705 | } | |
1da177e4 | 706 | |
b09a4913 | 707 | long compat_sys_setpriority(u32 which, u32 who, u32 niceval) |
1da177e4 LT |
708 | { |
709 | /* sign extend which, who and niceval */ | |
710 | return sys_setpriority((int)which, (int)who, (int)niceval); | |
711 | } | |
712 | ||
b09a4913 | 713 | long compat_sys_ioprio_get(u32 which, u32 who) |
79c2cc7b AB |
714 | { |
715 | /* sign extend which and who */ | |
716 | return sys_ioprio_get((int)which, (int)who); | |
717 | } | |
718 | ||
b09a4913 | 719 | long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio) |
79c2cc7b AB |
720 | { |
721 | /* sign extend which, who and ioprio */ | |
722 | return sys_ioprio_set((int)which, (int)who, (int)ioprio); | |
723 | } | |
724 | ||
1da177e4 LT |
725 | /* Note: it is necessary to treat newmask as an unsigned int, |
726 | * with the corresponding cast to a signed int to insure that the | |
727 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
728 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
729 | */ | |
b09a4913 | 730 | asmlinkage long compat_sys_ssetmask(u32 newmask) |
1da177e4 LT |
731 | { |
732 | return sys_ssetmask((int) newmask); | |
733 | } | |
734 | ||
b09a4913 | 735 | asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len) |
1da177e4 LT |
736 | { |
737 | /* sign extend len */ | |
738 | return sys_syslog(type, buf, (int)len); | |
739 | } | |
740 | ||
741 | ||
742 | /* Note: it is necessary to treat mask as an unsigned int, | |
743 | * with the corresponding cast to a signed int to insure that the | |
744 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
745 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
746 | */ | |
b09a4913 | 747 | asmlinkage long compat_sys_umask(u32 mask) |
1da177e4 LT |
748 | { |
749 | return sys_umask((int)mask); | |
750 | } | |
751 | ||
b89a8171 | 752 | #ifdef CONFIG_SYSCTL_SYSCALL |
1da177e4 LT |
753 | struct __sysctl_args32 { |
754 | u32 name; | |
755 | int nlen; | |
756 | u32 oldval; | |
757 | u32 oldlenp; | |
758 | u32 newval; | |
759 | u32 newlen; | |
760 | u32 __unused[4]; | |
761 | }; | |
762 | ||
b09a4913 | 763 | asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args) |
1da177e4 LT |
764 | { |
765 | struct __sysctl_args32 tmp; | |
766 | int error; | |
767 | size_t oldlen; | |
768 | size_t __user *oldlenp = NULL; | |
769 | unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7; | |
770 | ||
771 | if (copy_from_user(&tmp, args, sizeof(tmp))) | |
772 | return -EFAULT; | |
773 | ||
774 | if (tmp.oldval && tmp.oldlenp) { | |
775 | /* Duh, this is ugly and might not work if sysctl_args | |
776 | is in read-only memory, but do_sysctl does indirectly | |
777 | a lot of uaccess in both directions and we'd have to | |
778 | basically copy the whole sysctl.c here, and | |
779 | glibc's __sysctl uses rw memory for the structure | |
780 | anyway. */ | |
781 | oldlenp = (size_t __user *)addr; | |
782 | if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) || | |
783 | put_user(oldlen, oldlenp)) | |
784 | return -EFAULT; | |
785 | } | |
786 | ||
787 | lock_kernel(); | |
788 | error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, | |
789 | compat_ptr(tmp.oldval), oldlenp, | |
790 | compat_ptr(tmp.newval), tmp.newlen); | |
791 | unlock_kernel(); | |
792 | if (oldlenp) { | |
793 | if (!error) { | |
794 | if (get_user(oldlen, oldlenp) || | |
795 | put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp))) | |
796 | error = -EFAULT; | |
797 | } | |
798 | copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)); | |
799 | } | |
800 | return error; | |
801 | } | |
802 | #endif | |
803 | ||
b09a4913 | 804 | unsigned long compat_sys_mmap2(unsigned long addr, size_t len, |
1da177e4 LT |
805 | unsigned long prot, unsigned long flags, |
806 | unsigned long fd, unsigned long pgoff) | |
807 | { | |
808 | /* This should remain 12 even if PAGE_SIZE changes */ | |
809 | return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); | |
810 | } | |
811 | ||
b09a4913 | 812 | long compat_sys_tgkill(u32 tgid, u32 pid, int sig) |
1da177e4 LT |
813 | { |
814 | /* sign extend tgid, pid */ | |
815 | return sys_tgkill((int)tgid, (int)pid, sig); | |
816 | } | |
817 | ||
818 | /* | |
819 | * long long munging: | |
820 | * The 32 bit ABI passes long longs in an odd even register pair. | |
821 | */ | |
822 | ||
b09a4913 | 823 | compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
824 | u32 reg6, u32 poshi, u32 poslo) |
825 | { | |
826 | return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
827 | } | |
828 | ||
b09a4913 | 829 | compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
830 | u32 reg6, u32 poshi, u32 poslo) |
831 | { | |
832 | return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
833 | } | |
834 | ||
b09a4913 | 835 | compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
1da177e4 LT |
836 | { |
837 | return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); | |
838 | } | |
839 | ||
b09a4913 | 840 | asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, |
1da177e4 LT |
841 | unsigned long high, unsigned long low) |
842 | { | |
843 | return sys_truncate(path, (high << 32) | low); | |
844 | } | |
845 | ||
b09a4913 | 846 | asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, |
1da177e4 LT |
847 | unsigned long low) |
848 | { | |
849 | return sys_ftruncate(fd, (high << 32) | low); | |
850 | } | |
851 | ||
852 | long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf, | |
853 | size_t len) | |
854 | { | |
855 | return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low, | |
856 | buf, len); | |
857 | } | |
858 | ||
859 | long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, | |
860 | size_t len, int advice) | |
861 | { | |
862 | return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len, | |
863 | advice); | |
864 | } | |
865 | ||
b09a4913 | 866 | asmlinkage long compat_sys_add_key(const char __user *_type, |
1da177e4 LT |
867 | const char __user *_description, |
868 | const void __user *_payload, | |
869 | u32 plen, | |
870 | u32 ringid) | |
871 | { | |
872 | return sys_add_key(_type, _description, _payload, plen, ringid); | |
873 | } | |
874 | ||
b09a4913 | 875 | asmlinkage long compat_sys_request_key(const char __user *_type, |
1da177e4 LT |
876 | const char __user *_description, |
877 | const char __user *_callout_info, | |
878 | u32 destringid) | |
879 | { | |
880 | return sys_request_key(_type, _description, _callout_info, destringid); | |
881 | } | |
882 |