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 | ||
17 | #include <linux/config.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/sched.h> | |
20 | #include <linux/fs.h> | |
21 | #include <linux/mm.h> | |
22 | #include <linux/file.h> | |
23 | #include <linux/signal.h> | |
24 | #include <linux/resource.h> | |
25 | #include <linux/times.h> | |
26 | #include <linux/utsname.h> | |
27 | #include <linux/timex.h> | |
28 | #include <linux/smp.h> | |
29 | #include <linux/smp_lock.h> | |
30 | #include <linux/sem.h> | |
31 | #include <linux/msg.h> | |
32 | #include <linux/shm.h> | |
1da177e4 LT |
33 | #include <linux/poll.h> |
34 | #include <linux/personality.h> | |
35 | #include <linux/stat.h> | |
1da177e4 | 36 | #include <linux/mman.h> |
1da177e4 | 37 | #include <linux/in.h> |
1da177e4 LT |
38 | #include <linux/syscalls.h> |
39 | #include <linux/unistd.h> | |
40 | #include <linux/sysctl.h> | |
41 | #include <linux/binfmts.h> | |
1da177e4 LT |
42 | #include <linux/security.h> |
43 | #include <linux/compat.h> | |
44 | #include <linux/ptrace.h> | |
1da177e4 LT |
45 | #include <linux/elf.h> |
46 | ||
1da177e4 LT |
47 | #include <asm/ptrace.h> |
48 | #include <asm/types.h> | |
49 | #include <asm/ipc.h> | |
50 | #include <asm/uaccess.h> | |
51 | #include <asm/unistd.h> | |
52 | #include <asm/semaphore.h> | |
1da177e4 LT |
53 | #include <asm/time.h> |
54 | #include <asm/mmu_context.h> | |
d387899f | 55 | #include <asm/ppc-pci.h> |
1da177e4 LT |
56 | |
57 | /* readdir & getdents */ | |
58 | #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de))) | |
59 | #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1)) | |
60 | ||
61 | struct old_linux_dirent32 { | |
62 | u32 d_ino; | |
63 | u32 d_offset; | |
64 | unsigned short d_namlen; | |
65 | char d_name[1]; | |
66 | }; | |
67 | ||
68 | struct readdir_callback32 { | |
69 | struct old_linux_dirent32 __user * dirent; | |
70 | int count; | |
71 | }; | |
72 | ||
73 | static int fillonedir(void * __buf, const char * name, int namlen, | |
74 | off_t offset, ino_t ino, unsigned int d_type) | |
75 | { | |
76 | struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf; | |
77 | struct old_linux_dirent32 __user * dirent; | |
78 | ||
79 | if (buf->count) | |
80 | return -EINVAL; | |
81 | buf->count++; | |
82 | dirent = buf->dirent; | |
83 | put_user(ino, &dirent->d_ino); | |
84 | put_user(offset, &dirent->d_offset); | |
85 | put_user(namlen, &dirent->d_namlen); | |
86 | copy_to_user(dirent->d_name, name, namlen); | |
87 | put_user(0, dirent->d_name + namlen); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count) | |
92 | { | |
93 | int error = -EBADF; | |
94 | struct file * file; | |
95 | struct readdir_callback32 buf; | |
96 | ||
97 | file = fget(fd); | |
98 | if (!file) | |
99 | goto out; | |
100 | ||
101 | buf.count = 0; | |
102 | buf.dirent = dirent; | |
103 | ||
104 | error = vfs_readdir(file, (filldir_t)fillonedir, &buf); | |
105 | if (error < 0) | |
106 | goto out_putf; | |
107 | error = buf.count; | |
108 | ||
109 | out_putf: | |
110 | fput(file); | |
111 | out: | |
112 | return error; | |
113 | } | |
114 | ||
1da177e4 LT |
115 | asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, |
116 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
117 | compat_uptr_t tvp_x) | |
118 | { | |
119 | /* sign extend n */ | |
120 | return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); | |
121 | } | |
122 | ||
123 | int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf) | |
124 | { | |
125 | long err; | |
126 | ||
127 | if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) || | |
128 | !new_valid_dev(stat->rdev)) | |
129 | return -EOVERFLOW; | |
130 | ||
131 | err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT; | |
132 | err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev); | |
133 | err |= __put_user(stat->ino, &statbuf->st_ino); | |
134 | err |= __put_user(stat->mode, &statbuf->st_mode); | |
135 | err |= __put_user(stat->nlink, &statbuf->st_nlink); | |
136 | err |= __put_user(stat->uid, &statbuf->st_uid); | |
137 | err |= __put_user(stat->gid, &statbuf->st_gid); | |
138 | err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev); | |
139 | err |= __put_user(stat->size, &statbuf->st_size); | |
140 | err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime); | |
141 | err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec); | |
142 | err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime); | |
143 | err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec); | |
144 | err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime); | |
145 | err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec); | |
146 | err |= __put_user(stat->blksize, &statbuf->st_blksize); | |
147 | err |= __put_user(stat->blocks, &statbuf->st_blocks); | |
148 | err |= __put_user(0, &statbuf->__unused4[0]); | |
149 | err |= __put_user(0, &statbuf->__unused4[1]); | |
150 | ||
151 | return err; | |
152 | } | |
153 | ||
154 | /* Note: it is necessary to treat option as an unsigned int, | |
155 | * with the corresponding cast to a signed int to insure that the | |
156 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
157 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
158 | */ | |
b09a4913 | 159 | asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2) |
1da177e4 LT |
160 | { |
161 | return sys_sysfs((int)option, arg1, arg2); | |
162 | } | |
163 | ||
164 | /* Handle adjtimex compatibility. */ | |
165 | struct timex32 { | |
166 | u32 modes; | |
167 | s32 offset, freq, maxerror, esterror; | |
168 | s32 status, constant, precision, tolerance; | |
169 | struct compat_timeval time; | |
170 | s32 tick; | |
171 | s32 ppsfreq, jitter, shift, stabil; | |
172 | s32 jitcnt, calcnt, errcnt, stbcnt; | |
173 | s32 :32; s32 :32; s32 :32; s32 :32; | |
174 | s32 :32; s32 :32; s32 :32; s32 :32; | |
175 | s32 :32; s32 :32; s32 :32; s32 :32; | |
176 | }; | |
177 | ||
178 | extern int do_adjtimex(struct timex *); | |
179 | extern void ppc_adjtimex(void); | |
180 | ||
b09a4913 | 181 | asmlinkage long compat_sys_adjtimex(struct timex32 __user *utp) |
1da177e4 LT |
182 | { |
183 | struct timex txc; | |
184 | int ret; | |
185 | ||
186 | memset(&txc, 0, sizeof(struct timex)); | |
187 | ||
188 | if(get_user(txc.modes, &utp->modes) || | |
189 | __get_user(txc.offset, &utp->offset) || | |
190 | __get_user(txc.freq, &utp->freq) || | |
191 | __get_user(txc.maxerror, &utp->maxerror) || | |
192 | __get_user(txc.esterror, &utp->esterror) || | |
193 | __get_user(txc.status, &utp->status) || | |
194 | __get_user(txc.constant, &utp->constant) || | |
195 | __get_user(txc.precision, &utp->precision) || | |
196 | __get_user(txc.tolerance, &utp->tolerance) || | |
197 | __get_user(txc.time.tv_sec, &utp->time.tv_sec) || | |
198 | __get_user(txc.time.tv_usec, &utp->time.tv_usec) || | |
199 | __get_user(txc.tick, &utp->tick) || | |
200 | __get_user(txc.ppsfreq, &utp->ppsfreq) || | |
201 | __get_user(txc.jitter, &utp->jitter) || | |
202 | __get_user(txc.shift, &utp->shift) || | |
203 | __get_user(txc.stabil, &utp->stabil) || | |
204 | __get_user(txc.jitcnt, &utp->jitcnt) || | |
205 | __get_user(txc.calcnt, &utp->calcnt) || | |
206 | __get_user(txc.errcnt, &utp->errcnt) || | |
207 | __get_user(txc.stbcnt, &utp->stbcnt)) | |
208 | return -EFAULT; | |
209 | ||
210 | ret = do_adjtimex(&txc); | |
211 | ||
212 | /* adjust the conversion of TB to time of day to track adjtimex */ | |
213 | ppc_adjtimex(); | |
214 | ||
215 | if(put_user(txc.modes, &utp->modes) || | |
216 | __put_user(txc.offset, &utp->offset) || | |
217 | __put_user(txc.freq, &utp->freq) || | |
218 | __put_user(txc.maxerror, &utp->maxerror) || | |
219 | __put_user(txc.esterror, &utp->esterror) || | |
220 | __put_user(txc.status, &utp->status) || | |
221 | __put_user(txc.constant, &utp->constant) || | |
222 | __put_user(txc.precision, &utp->precision) || | |
223 | __put_user(txc.tolerance, &utp->tolerance) || | |
224 | __put_user(txc.time.tv_sec, &utp->time.tv_sec) || | |
225 | __put_user(txc.time.tv_usec, &utp->time.tv_usec) || | |
226 | __put_user(txc.tick, &utp->tick) || | |
227 | __put_user(txc.ppsfreq, &utp->ppsfreq) || | |
228 | __put_user(txc.jitter, &utp->jitter) || | |
229 | __put_user(txc.shift, &utp->shift) || | |
230 | __put_user(txc.stabil, &utp->stabil) || | |
231 | __put_user(txc.jitcnt, &utp->jitcnt) || | |
232 | __put_user(txc.calcnt, &utp->calcnt) || | |
233 | __put_user(txc.errcnt, &utp->errcnt) || | |
234 | __put_user(txc.stbcnt, &utp->stbcnt)) | |
235 | ret = -EFAULT; | |
236 | ||
237 | return ret; | |
238 | } | |
239 | ||
b09a4913 | 240 | asmlinkage long compat_sys_pause(void) |
1da177e4 LT |
241 | { |
242 | current->state = TASK_INTERRUPTIBLE; | |
243 | schedule(); | |
244 | ||
245 | return -ERESTARTNOHAND; | |
246 | } | |
247 | ||
1da177e4 LT |
248 | static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i) |
249 | { | |
250 | long usec; | |
251 | ||
252 | if (!access_ok(VERIFY_READ, i, sizeof(*i))) | |
253 | return -EFAULT; | |
254 | if (__get_user(o->tv_sec, &i->tv_sec)) | |
255 | return -EFAULT; | |
256 | if (__get_user(usec, &i->tv_usec)) | |
257 | return -EFAULT; | |
258 | o->tv_nsec = usec * 1000; | |
259 | return 0; | |
260 | } | |
261 | ||
262 | static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i) | |
263 | { | |
264 | return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || | |
265 | (__put_user(i->tv_sec, &o->tv_sec) | | |
266 | __put_user(i->tv_usec, &o->tv_usec))); | |
267 | } | |
268 | ||
269 | struct sysinfo32 { | |
270 | s32 uptime; | |
271 | u32 loads[3]; | |
272 | u32 totalram; | |
273 | u32 freeram; | |
274 | u32 sharedram; | |
275 | u32 bufferram; | |
276 | u32 totalswap; | |
277 | u32 freeswap; | |
278 | unsigned short procs; | |
279 | unsigned short pad; | |
280 | u32 totalhigh; | |
281 | u32 freehigh; | |
282 | u32 mem_unit; | |
283 | char _f[20-2*sizeof(int)-sizeof(int)]; | |
284 | }; | |
285 | ||
b09a4913 | 286 | asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info) |
1da177e4 LT |
287 | { |
288 | struct sysinfo s; | |
289 | int ret, err; | |
290 | int bitcount=0; | |
291 | mm_segment_t old_fs = get_fs (); | |
292 | ||
293 | /* The __user cast is valid due to set_fs() */ | |
294 | set_fs (KERNEL_DS); | |
295 | ret = sys_sysinfo((struct sysinfo __user *)&s); | |
296 | set_fs (old_fs); | |
297 | ||
298 | /* Check to see if any memory value is too large for 32-bit and | |
299 | * scale down if needed. | |
300 | */ | |
301 | if ((s.totalram >> 32) || (s.totalswap >> 32)) { | |
302 | while (s.mem_unit < PAGE_SIZE) { | |
303 | s.mem_unit <<= 1; | |
304 | bitcount++; | |
305 | } | |
306 | s.totalram >>=bitcount; | |
307 | s.freeram >>= bitcount; | |
308 | s.sharedram >>= bitcount; | |
309 | s.bufferram >>= bitcount; | |
310 | s.totalswap >>= bitcount; | |
311 | s.freeswap >>= bitcount; | |
312 | s.totalhigh >>= bitcount; | |
313 | s.freehigh >>= bitcount; | |
314 | } | |
315 | ||
316 | err = put_user (s.uptime, &info->uptime); | |
317 | err |= __put_user (s.loads[0], &info->loads[0]); | |
318 | err |= __put_user (s.loads[1], &info->loads[1]); | |
319 | err |= __put_user (s.loads[2], &info->loads[2]); | |
320 | err |= __put_user (s.totalram, &info->totalram); | |
321 | err |= __put_user (s.freeram, &info->freeram); | |
322 | err |= __put_user (s.sharedram, &info->sharedram); | |
323 | err |= __put_user (s.bufferram, &info->bufferram); | |
324 | err |= __put_user (s.totalswap, &info->totalswap); | |
325 | err |= __put_user (s.freeswap, &info->freeswap); | |
326 | err |= __put_user (s.procs, &info->procs); | |
327 | err |= __put_user (s.totalhigh, &info->totalhigh); | |
328 | err |= __put_user (s.freehigh, &info->freehigh); | |
329 | err |= __put_user (s.mem_unit, &info->mem_unit); | |
330 | if (err) | |
331 | return -EFAULT; | |
332 | ||
333 | return ret; | |
334 | } | |
335 | ||
336 | ||
337 | ||
338 | ||
339 | /* Translations due to time_t size differences. Which affects all | |
340 | sorts of things, like timeval and itimerval. */ | |
341 | extern struct timezone sys_tz; | |
342 | ||
b09a4913 | 343 | asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) |
1da177e4 LT |
344 | { |
345 | if (tv) { | |
346 | struct timeval ktv; | |
347 | do_gettimeofday(&ktv); | |
348 | if (put_tv32(tv, &ktv)) | |
349 | return -EFAULT; | |
350 | } | |
351 | if (tz) { | |
352 | if (copy_to_user(tz, &sys_tz, sizeof(sys_tz))) | |
353 | return -EFAULT; | |
354 | } | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | ||
360 | ||
b09a4913 | 361 | asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz) |
1da177e4 LT |
362 | { |
363 | struct timespec kts; | |
364 | struct timezone ktz; | |
365 | ||
366 | if (tv) { | |
367 | if (get_ts32(&kts, tv)) | |
368 | return -EFAULT; | |
369 | } | |
370 | if (tz) { | |
371 | if (copy_from_user(&ktz, tz, sizeof(ktz))) | |
372 | return -EFAULT; | |
373 | } | |
374 | ||
375 | return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); | |
376 | } | |
377 | ||
378 | #ifdef CONFIG_SYSVIPC | |
b09a4913 | 379 | long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, |
1da177e4 LT |
380 | u32 fifth) |
381 | { | |
382 | int version; | |
383 | ||
384 | version = call >> 16; /* hack for backward compatibility */ | |
385 | call &= 0xffff; | |
386 | ||
387 | switch (call) { | |
388 | ||
389 | case SEMTIMEDOP: | |
390 | if (fifth) | |
391 | /* sign extend semid */ | |
392 | return compat_sys_semtimedop((int)first, | |
393 | compat_ptr(ptr), second, | |
394 | compat_ptr(fifth)); | |
395 | /* else fall through for normal semop() */ | |
396 | case SEMOP: | |
397 | /* struct sembuf is the same on 32 and 64bit :)) */ | |
398 | /* sign extend semid */ | |
399 | return sys_semtimedop((int)first, compat_ptr(ptr), second, | |
400 | NULL); | |
401 | case SEMGET: | |
402 | /* sign extend key, nsems */ | |
403 | return sys_semget((int)first, (int)second, third); | |
404 | case SEMCTL: | |
405 | /* sign extend semid, semnum */ | |
406 | return compat_sys_semctl((int)first, (int)second, third, | |
407 | compat_ptr(ptr)); | |
408 | ||
409 | case MSGSND: | |
410 | /* sign extend msqid */ | |
411 | return compat_sys_msgsnd((int)first, (int)second, third, | |
412 | compat_ptr(ptr)); | |
413 | case MSGRCV: | |
414 | /* sign extend msqid, msgtyp */ | |
415 | return compat_sys_msgrcv((int)first, second, (int)fifth, | |
416 | third, version, compat_ptr(ptr)); | |
417 | case MSGGET: | |
418 | /* sign extend key */ | |
419 | return sys_msgget((int)first, second); | |
420 | case MSGCTL: | |
421 | /* sign extend msqid */ | |
422 | return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); | |
423 | ||
424 | case SHMAT: | |
425 | /* sign extend shmid */ | |
426 | return compat_sys_shmat((int)first, second, third, version, | |
427 | compat_ptr(ptr)); | |
428 | case SHMDT: | |
429 | return sys_shmdt(compat_ptr(ptr)); | |
430 | case SHMGET: | |
431 | /* sign extend key_t */ | |
432 | return sys_shmget((int)first, second, third); | |
433 | case SHMCTL: | |
434 | /* sign extend shmid */ | |
435 | return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); | |
436 | ||
437 | default: | |
438 | return -ENOSYS; | |
439 | } | |
440 | ||
441 | return -ENOSYS; | |
442 | } | |
443 | #endif | |
444 | ||
445 | /* Note: it is necessary to treat out_fd and in_fd as unsigned ints, | |
446 | * with the corresponding cast to a signed int to insure that the | |
447 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
448 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
449 | */ | |
b09a4913 | 450 | asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count) |
1da177e4 LT |
451 | { |
452 | mm_segment_t old_fs = get_fs(); | |
453 | int ret; | |
454 | off_t of; | |
455 | off_t __user *up; | |
456 | ||
457 | if (offset && get_user(of, offset)) | |
458 | return -EFAULT; | |
459 | ||
460 | /* The __user pointer cast is valid because of the set_fs() */ | |
461 | set_fs(KERNEL_DS); | |
462 | up = offset ? (off_t __user *) &of : NULL; | |
463 | ret = sys_sendfile((int)out_fd, (int)in_fd, up, count); | |
464 | set_fs(old_fs); | |
465 | ||
466 | if (offset && put_user(of, offset)) | |
467 | return -EFAULT; | |
468 | ||
469 | return ret; | |
470 | } | |
471 | ||
b09a4913 | 472 | asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count) |
1da177e4 LT |
473 | { |
474 | mm_segment_t old_fs = get_fs(); | |
475 | int ret; | |
476 | loff_t lof; | |
477 | loff_t __user *up; | |
478 | ||
479 | if (offset && get_user(lof, offset)) | |
480 | return -EFAULT; | |
481 | ||
482 | /* The __user pointer cast is valid because of the set_fs() */ | |
483 | set_fs(KERNEL_DS); | |
484 | up = offset ? (loff_t __user *) &lof : NULL; | |
485 | ret = sys_sendfile64(out_fd, in_fd, up, count); | |
486 | set_fs(old_fs); | |
487 | ||
488 | if (offset && put_user(lof, offset)) | |
489 | return -EFAULT; | |
490 | ||
491 | return ret; | |
492 | } | |
493 | ||
b09a4913 | 494 | long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2, |
1da177e4 LT |
495 | unsigned long a3, unsigned long a4, unsigned long a5, |
496 | struct pt_regs *regs) | |
497 | { | |
498 | int error; | |
499 | char * filename; | |
500 | ||
501 | filename = getname((char __user *) a0); | |
502 | error = PTR_ERR(filename); | |
503 | if (IS_ERR(filename)) | |
504 | goto out; | |
505 | flush_fp_to_thread(current); | |
506 | flush_altivec_to_thread(current); | |
507 | ||
508 | error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs); | |
509 | ||
510 | if (error == 0) { | |
511 | task_lock(current); | |
512 | current->ptrace &= ~PT_DTRACE; | |
513 | task_unlock(current); | |
514 | } | |
515 | putname(filename); | |
516 | ||
517 | out: | |
518 | return error; | |
519 | } | |
520 | ||
1da177e4 LT |
521 | /* Note: it is necessary to treat option as an unsigned int, |
522 | * with the corresponding cast to a signed int to insure that the | |
523 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
524 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
525 | */ | |
b09a4913 | 526 | asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5) |
1da177e4 LT |
527 | { |
528 | return sys_prctl((int)option, | |
529 | (unsigned long) arg2, | |
530 | (unsigned long) arg3, | |
531 | (unsigned long) arg4, | |
532 | (unsigned long) arg5); | |
533 | } | |
534 | ||
535 | /* Note: it is necessary to treat pid as an unsigned int, | |
536 | * with the corresponding cast to a signed int to insure that the | |
537 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
538 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
539 | */ | |
b09a4913 | 540 | asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval) |
1da177e4 LT |
541 | { |
542 | struct timespec t; | |
543 | int ret; | |
544 | mm_segment_t old_fs = get_fs (); | |
545 | ||
546 | /* The __user pointer cast is valid because of the set_fs() */ | |
547 | set_fs (KERNEL_DS); | |
548 | ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t); | |
549 | set_fs (old_fs); | |
550 | if (put_compat_timespec(&t, interval)) | |
551 | return -EFAULT; | |
552 | return ret; | |
553 | } | |
554 | ||
b09a4913 | 555 | asmlinkage int compat_sys_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf) |
1da177e4 LT |
556 | { |
557 | return sys_pciconfig_read((unsigned long) bus, | |
558 | (unsigned long) dfn, | |
559 | (unsigned long) off, | |
560 | (unsigned long) len, | |
561 | compat_ptr(ubuf)); | |
562 | } | |
563 | ||
b09a4913 | 564 | asmlinkage int compat_sys_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf) |
1da177e4 LT |
565 | { |
566 | return sys_pciconfig_write((unsigned long) bus, | |
567 | (unsigned long) dfn, | |
568 | (unsigned long) off, | |
569 | (unsigned long) len, | |
570 | compat_ptr(ubuf)); | |
571 | } | |
572 | ||
b09a4913 | 573 | asmlinkage int compat_sys_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn) |
1da177e4 | 574 | { |
b2ad7b5e | 575 | return sys_pciconfig_iobase(which, in_bus, in_devfn); |
1da177e4 LT |
576 | } |
577 | ||
578 | ||
1da177e4 LT |
579 | /* Note: it is necessary to treat mode as an unsigned int, |
580 | * with the corresponding cast to a signed int to insure that the | |
581 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
582 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
583 | */ | |
b09a4913 | 584 | asmlinkage long compat_sys_access(const char __user * filename, u32 mode) |
1da177e4 LT |
585 | { |
586 | return sys_access(filename, (int)mode); | |
587 | } | |
588 | ||
589 | ||
590 | /* Note: it is necessary to treat mode as an unsigned int, | |
591 | * with the corresponding cast to a signed int to insure that the | |
592 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
593 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
594 | */ | |
b09a4913 | 595 | asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode) |
1da177e4 LT |
596 | { |
597 | return sys_creat(pathname, (int)mode); | |
598 | } | |
599 | ||
600 | ||
601 | /* Note: it is necessary to treat pid and options as unsigned ints, | |
602 | * with the corresponding cast to a signed int to insure that the | |
603 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
604 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
605 | */ | |
b09a4913 | 606 | asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options) |
1da177e4 LT |
607 | { |
608 | return sys_waitpid((int)pid, stat_addr, (int)options); | |
609 | } | |
610 | ||
611 | ||
612 | /* Note: it is necessary to treat gidsetsize as an unsigned int, | |
613 | * with the corresponding cast to a signed int to insure that the | |
614 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
615 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
616 | */ | |
b09a4913 | 617 | asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist) |
1da177e4 LT |
618 | { |
619 | return sys_getgroups((int)gidsetsize, grouplist); | |
620 | } | |
621 | ||
622 | ||
623 | /* Note: it is necessary to treat pid as an unsigned int, | |
624 | * with the corresponding cast to a signed int to insure that the | |
625 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
626 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
627 | */ | |
b09a4913 | 628 | asmlinkage long compat_sys_getpgid(u32 pid) |
1da177e4 LT |
629 | { |
630 | return sys_getpgid((int)pid); | |
631 | } | |
632 | ||
633 | ||
1da177e4 LT |
634 | |
635 | /* Note: it is necessary to treat pid as an unsigned int, | |
636 | * with the corresponding cast to a signed int to insure that the | |
637 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
638 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
639 | */ | |
b09a4913 | 640 | asmlinkage long compat_sys_getsid(u32 pid) |
1da177e4 LT |
641 | { |
642 | return sys_getsid((int)pid); | |
643 | } | |
644 | ||
645 | ||
646 | /* Note: it is necessary to treat pid and sig as unsigned ints, | |
647 | * with the corresponding cast to a signed int to insure that the | |
648 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
649 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
650 | */ | |
b09a4913 | 651 | asmlinkage long compat_sys_kill(u32 pid, u32 sig) |
1da177e4 LT |
652 | { |
653 | return sys_kill((int)pid, (int)sig); | |
654 | } | |
655 | ||
656 | ||
657 | /* Note: it is necessary to treat mode as an unsigned int, | |
658 | * with the corresponding cast to a signed int to insure that the | |
659 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
660 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
661 | */ | |
b09a4913 | 662 | asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode) |
1da177e4 LT |
663 | { |
664 | return sys_mkdir(pathname, (int)mode); | |
665 | } | |
666 | ||
b09a4913 | 667 | long compat_sys_nice(u32 increment) |
1da177e4 LT |
668 | { |
669 | /* sign extend increment */ | |
670 | return sys_nice((int)increment); | |
671 | } | |
672 | ||
673 | off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin) | |
674 | { | |
675 | /* sign extend n */ | |
676 | return sys_lseek(fd, (int)offset, origin); | |
677 | } | |
678 | ||
1da177e4 LT |
679 | /* Note: it is necessary to treat bufsiz as an unsigned int, |
680 | * with the corresponding cast to a signed int to insure that the | |
681 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
682 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
683 | */ | |
b09a4913 | 684 | asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz) |
1da177e4 LT |
685 | { |
686 | return sys_readlink(path, buf, (int)bufsiz); | |
687 | } | |
688 | ||
689 | /* Note: it is necessary to treat option as an unsigned int, | |
690 | * with the corresponding cast to a signed int to insure that the | |
691 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
692 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
693 | */ | |
b09a4913 | 694 | asmlinkage long compat_sys_sched_get_priority_max(u32 policy) |
1da177e4 LT |
695 | { |
696 | return sys_sched_get_priority_max((int)policy); | |
697 | } | |
698 | ||
699 | ||
700 | /* Note: it is necessary to treat policy as an unsigned int, | |
701 | * with the corresponding cast to a signed int to insure that the | |
702 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
703 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
704 | */ | |
b09a4913 | 705 | asmlinkage long compat_sys_sched_get_priority_min(u32 policy) |
1da177e4 LT |
706 | { |
707 | return sys_sched_get_priority_min((int)policy); | |
708 | } | |
709 | ||
710 | ||
711 | /* Note: it is necessary to treat pid as an unsigned int, | |
712 | * with the corresponding cast to a signed int to insure that the | |
713 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
714 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
715 | */ | |
b09a4913 | 716 | asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param) |
1da177e4 LT |
717 | { |
718 | return sys_sched_getparam((int)pid, param); | |
719 | } | |
720 | ||
721 | ||
722 | /* Note: it is necessary to treat pid as an unsigned int, | |
723 | * with the corresponding cast to a signed int to insure that the | |
724 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
725 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
726 | */ | |
b09a4913 | 727 | asmlinkage long compat_sys_sched_getscheduler(u32 pid) |
1da177e4 LT |
728 | { |
729 | return sys_sched_getscheduler((int)pid); | |
730 | } | |
731 | ||
732 | ||
733 | /* Note: it is necessary to treat pid as an unsigned int, | |
734 | * with the corresponding cast to a signed int to insure that the | |
735 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
736 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
737 | */ | |
b09a4913 | 738 | asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param) |
1da177e4 LT |
739 | { |
740 | return sys_sched_setparam((int)pid, param); | |
741 | } | |
742 | ||
743 | ||
744 | /* Note: it is necessary to treat pid and policy as unsigned ints, | |
745 | * with the corresponding cast to a signed int to insure that the | |
746 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
747 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
748 | */ | |
b09a4913 | 749 | asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param) |
1da177e4 LT |
750 | { |
751 | return sys_sched_setscheduler((int)pid, (int)policy, param); | |
752 | } | |
753 | ||
754 | ||
755 | /* Note: it is necessary to treat len as an unsigned int, | |
756 | * with the corresponding cast to a signed int to insure that the | |
757 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
758 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
759 | */ | |
b09a4913 | 760 | asmlinkage long compat_sys_setdomainname(char __user *name, u32 len) |
1da177e4 LT |
761 | { |
762 | return sys_setdomainname(name, (int)len); | |
763 | } | |
764 | ||
765 | ||
766 | /* Note: it is necessary to treat gidsetsize as an unsigned int, | |
767 | * with the corresponding cast to a signed int to insure that the | |
768 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
769 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
770 | */ | |
b09a4913 | 771 | asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist) |
1da177e4 LT |
772 | { |
773 | return sys_setgroups((int)gidsetsize, grouplist); | |
774 | } | |
775 | ||
776 | ||
b09a4913 | 777 | asmlinkage long compat_sys_sethostname(char __user *name, u32 len) |
1da177e4 LT |
778 | { |
779 | /* sign extend len */ | |
780 | return sys_sethostname(name, (int)len); | |
781 | } | |
782 | ||
783 | ||
784 | /* Note: it is necessary to treat pid and pgid as unsigned ints, | |
785 | * with the corresponding cast to a signed int to insure that the | |
786 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
787 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
788 | */ | |
b09a4913 | 789 | asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid) |
1da177e4 LT |
790 | { |
791 | return sys_setpgid((int)pid, (int)pgid); | |
792 | } | |
793 | ||
b09a4913 | 794 | long compat_sys_getpriority(u32 which, u32 who) |
79c2cc7b AB |
795 | { |
796 | /* sign extend which and who */ | |
797 | return sys_getpriority((int)which, (int)who); | |
798 | } | |
1da177e4 | 799 | |
b09a4913 | 800 | long compat_sys_setpriority(u32 which, u32 who, u32 niceval) |
1da177e4 LT |
801 | { |
802 | /* sign extend which, who and niceval */ | |
803 | return sys_setpriority((int)which, (int)who, (int)niceval); | |
804 | } | |
805 | ||
b09a4913 | 806 | long compat_sys_ioprio_get(u32 which, u32 who) |
79c2cc7b AB |
807 | { |
808 | /* sign extend which and who */ | |
809 | return sys_ioprio_get((int)which, (int)who); | |
810 | } | |
811 | ||
b09a4913 | 812 | long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio) |
79c2cc7b AB |
813 | { |
814 | /* sign extend which, who and ioprio */ | |
815 | return sys_ioprio_set((int)which, (int)who, (int)ioprio); | |
816 | } | |
817 | ||
1da177e4 LT |
818 | /* Note: it is necessary to treat newmask as an unsigned int, |
819 | * with the corresponding cast to a signed int to insure that the | |
820 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
821 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
822 | */ | |
b09a4913 | 823 | asmlinkage long compat_sys_ssetmask(u32 newmask) |
1da177e4 LT |
824 | { |
825 | return sys_ssetmask((int) newmask); | |
826 | } | |
827 | ||
b09a4913 | 828 | asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len) |
1da177e4 LT |
829 | { |
830 | /* sign extend len */ | |
831 | return sys_syslog(type, buf, (int)len); | |
832 | } | |
833 | ||
834 | ||
835 | /* Note: it is necessary to treat mask as an unsigned int, | |
836 | * with the corresponding cast to a signed int to insure that the | |
837 | * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode) | |
838 | * and the register representation of a signed int (msr in 64-bit mode) is performed. | |
839 | */ | |
b09a4913 | 840 | asmlinkage long compat_sys_umask(u32 mask) |
1da177e4 LT |
841 | { |
842 | return sys_umask((int)mask); | |
843 | } | |
844 | ||
845 | #ifdef CONFIG_SYSCTL | |
846 | struct __sysctl_args32 { | |
847 | u32 name; | |
848 | int nlen; | |
849 | u32 oldval; | |
850 | u32 oldlenp; | |
851 | u32 newval; | |
852 | u32 newlen; | |
853 | u32 __unused[4]; | |
854 | }; | |
855 | ||
b09a4913 | 856 | asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args) |
1da177e4 LT |
857 | { |
858 | struct __sysctl_args32 tmp; | |
859 | int error; | |
860 | size_t oldlen; | |
861 | size_t __user *oldlenp = NULL; | |
862 | unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7; | |
863 | ||
864 | if (copy_from_user(&tmp, args, sizeof(tmp))) | |
865 | return -EFAULT; | |
866 | ||
867 | if (tmp.oldval && tmp.oldlenp) { | |
868 | /* Duh, this is ugly and might not work if sysctl_args | |
869 | is in read-only memory, but do_sysctl does indirectly | |
870 | a lot of uaccess in both directions and we'd have to | |
871 | basically copy the whole sysctl.c here, and | |
872 | glibc's __sysctl uses rw memory for the structure | |
873 | anyway. */ | |
874 | oldlenp = (size_t __user *)addr; | |
875 | if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) || | |
876 | put_user(oldlen, oldlenp)) | |
877 | return -EFAULT; | |
878 | } | |
879 | ||
880 | lock_kernel(); | |
881 | error = do_sysctl(compat_ptr(tmp.name), tmp.nlen, | |
882 | compat_ptr(tmp.oldval), oldlenp, | |
883 | compat_ptr(tmp.newval), tmp.newlen); | |
884 | unlock_kernel(); | |
885 | if (oldlenp) { | |
886 | if (!error) { | |
887 | if (get_user(oldlen, oldlenp) || | |
888 | put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp))) | |
889 | error = -EFAULT; | |
890 | } | |
891 | copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)); | |
892 | } | |
893 | return error; | |
894 | } | |
895 | #endif | |
896 | ||
b09a4913 | 897 | unsigned long compat_sys_mmap2(unsigned long addr, size_t len, |
1da177e4 LT |
898 | unsigned long prot, unsigned long flags, |
899 | unsigned long fd, unsigned long pgoff) | |
900 | { | |
901 | /* This should remain 12 even if PAGE_SIZE changes */ | |
902 | return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); | |
903 | } | |
904 | ||
b09a4913 | 905 | long compat_sys_tgkill(u32 tgid, u32 pid, int sig) |
1da177e4 LT |
906 | { |
907 | /* sign extend tgid, pid */ | |
908 | return sys_tgkill((int)tgid, (int)pid, sig); | |
909 | } | |
910 | ||
911 | /* | |
912 | * long long munging: | |
913 | * The 32 bit ABI passes long longs in an odd even register pair. | |
914 | */ | |
915 | ||
b09a4913 | 916 | compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
917 | u32 reg6, u32 poshi, u32 poslo) |
918 | { | |
919 | return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
920 | } | |
921 | ||
b09a4913 | 922 | compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
923 | u32 reg6, u32 poshi, u32 poslo) |
924 | { | |
925 | return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
926 | } | |
927 | ||
b09a4913 | 928 | compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
1da177e4 LT |
929 | { |
930 | return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); | |
931 | } | |
932 | ||
b09a4913 | 933 | asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, |
1da177e4 LT |
934 | unsigned long high, unsigned long low) |
935 | { | |
936 | return sys_truncate(path, (high << 32) | low); | |
937 | } | |
938 | ||
b09a4913 | 939 | asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, |
1da177e4 LT |
940 | unsigned long low) |
941 | { | |
942 | return sys_ftruncate(fd, (high << 32) | low); | |
943 | } | |
944 | ||
945 | long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf, | |
946 | size_t len) | |
947 | { | |
948 | return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low, | |
949 | buf, len); | |
950 | } | |
951 | ||
952 | long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, | |
953 | size_t len, int advice) | |
954 | { | |
955 | return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len, | |
956 | advice); | |
957 | } | |
958 | ||
1da177e4 LT |
959 | long ppc32_timer_create(clockid_t clock, |
960 | struct compat_sigevent __user *ev32, | |
961 | timer_t __user *timer_id) | |
962 | { | |
963 | sigevent_t event; | |
964 | timer_t t; | |
965 | long err; | |
966 | mm_segment_t savefs; | |
967 | ||
968 | if (ev32 == NULL) | |
969 | return sys_timer_create(clock, NULL, timer_id); | |
970 | ||
971 | if (get_compat_sigevent(&event, ev32)) | |
972 | return -EFAULT; | |
973 | ||
974 | if (!access_ok(VERIFY_WRITE, timer_id, sizeof(timer_t))) | |
975 | return -EFAULT; | |
976 | ||
977 | savefs = get_fs(); | |
978 | set_fs(KERNEL_DS); | |
979 | /* The __user pointer casts are valid due to the set_fs() */ | |
980 | err = sys_timer_create(clock, | |
981 | (sigevent_t __user *) &event, | |
982 | (timer_t __user *) &t); | |
983 | set_fs(savefs); | |
984 | ||
985 | if (err == 0) | |
986 | err = __put_user(t, timer_id); | |
987 | ||
988 | return err; | |
989 | } | |
990 | ||
b09a4913 | 991 | asmlinkage long compat_sys_add_key(const char __user *_type, |
1da177e4 LT |
992 | const char __user *_description, |
993 | const void __user *_payload, | |
994 | u32 plen, | |
995 | u32 ringid) | |
996 | { | |
997 | return sys_add_key(_type, _description, _payload, plen, ringid); | |
998 | } | |
999 | ||
b09a4913 | 1000 | asmlinkage long compat_sys_request_key(const char __user *_type, |
1da177e4 LT |
1001 | const char __user *_description, |
1002 | const char __user *_callout_info, | |
1003 | u32 destringid) | |
1004 | { | |
1005 | return sys_request_key(_type, _description, _callout_info, destringid); | |
1006 | } | |
1007 |