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1da177e4 LT |
1 | #ifndef _LINUX_COMPAT_H |
2 | #define _LINUX_COMPAT_H | |
3 | /* | |
4 | * These are the type definitions for the architecture specific | |
5 | * syscall compatibility layer. | |
6 | */ | |
1da177e4 | 7 | |
5180e3e2 AL |
8 | #include <linux/types.h> |
9 | ||
1da177e4 LT |
10 | #ifdef CONFIG_COMPAT |
11 | ||
12 | #include <linux/stat.h> | |
13 | #include <linux/param.h> /* for HZ */ | |
14 | #include <linux/sem.h> | |
2dceba14 AB |
15 | #include <linux/socket.h> |
16 | #include <linux/if.h> | |
be84cb43 | 17 | #include <linux/fs.h> |
45e9683e | 18 | #include <linux/aio_abi.h> /* for aio_context_t */ |
f5b972e9 | 19 | #include <linux/unistd.h> |
1da177e4 LT |
20 | |
21 | #include <asm/compat.h> | |
22 | #include <asm/siginfo.h> | |
3f2e05e9 | 23 | #include <asm/signal.h> |
1da177e4 | 24 | |
45e87781 L |
25 | #ifndef COMPAT_USE_64BIT_TIME |
26 | #define COMPAT_USE_64BIT_TIME 0 | |
27 | #endif | |
28 | ||
46836613 AV |
29 | #ifndef __SC_DELOUSE |
30 | #define __SC_DELOUSE(t,v) ((t)(unsigned long)(v)) | |
31 | #endif | |
32 | ||
217f4433 HC |
33 | #define COMPAT_SYSCALL_DEFINE0(name) \ |
34 | asmlinkage long compat_sys_##name(void) | |
35 | ||
46836613 AV |
36 | #define COMPAT_SYSCALL_DEFINE1(name, ...) \ |
37 | COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) | |
38 | #define COMPAT_SYSCALL_DEFINE2(name, ...) \ | |
39 | COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) | |
40 | #define COMPAT_SYSCALL_DEFINE3(name, ...) \ | |
41 | COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) | |
42 | #define COMPAT_SYSCALL_DEFINE4(name, ...) \ | |
43 | COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) | |
44 | #define COMPAT_SYSCALL_DEFINE5(name, ...) \ | |
45 | COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) | |
46 | #define COMPAT_SYSCALL_DEFINE6(name, ...) \ | |
47 | COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) | |
48 | ||
46836613 | 49 | #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ |
83460ec8 AK |
50 | asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ |
51 | __attribute__((alias(__stringify(compat_SyS##name)))); \ | |
07fe6e00 | 52 | static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ |
f9597f24 | 53 | asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\ |
07fe6e00 | 54 | asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ |
46836613 | 55 | { \ |
07fe6e00 | 56 | return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \ |
46836613 | 57 | } \ |
07fe6e00 | 58 | static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) |
46836613 | 59 | |
9b064fc3 AV |
60 | #ifndef compat_user_stack_pointer |
61 | #define compat_user_stack_pointer() current_user_stack_pointer() | |
62 | #endif | |
90268439 AV |
63 | #ifndef compat_sigaltstack /* we'll need that for MIPS */ |
64 | typedef struct compat_sigaltstack { | |
65 | compat_uptr_t ss_sp; | |
66 | int ss_flags; | |
67 | compat_size_t ss_size; | |
68 | } compat_stack_t; | |
69 | #endif | |
90268439 | 70 | |
1da177e4 LT |
71 | #define compat_jiffies_to_clock_t(x) \ |
72 | (((unsigned long)(x) * COMPAT_USER_HZ) / HZ) | |
73 | ||
202e5979 SR |
74 | typedef __compat_uid32_t compat_uid_t; |
75 | typedef __compat_gid32_t compat_gid_t; | |
76 | ||
932602e2 HC |
77 | typedef compat_ulong_t compat_aio_context_t; |
78 | ||
5d0e5283 | 79 | struct compat_sel_arg_struct; |
1da177e4 LT |
80 | struct rusage; |
81 | ||
4800a5bb | 82 | struct compat_itimerspec { |
1da177e4 LT |
83 | struct compat_timespec it_interval; |
84 | struct compat_timespec it_value; | |
85 | }; | |
86 | ||
87 | struct compat_utimbuf { | |
88 | compat_time_t actime; | |
89 | compat_time_t modtime; | |
90 | }; | |
91 | ||
92 | struct compat_itimerval { | |
93 | struct compat_timeval it_interval; | |
94 | struct compat_timeval it_value; | |
95 | }; | |
96 | ||
97 | struct compat_tms { | |
98 | compat_clock_t tms_utime; | |
99 | compat_clock_t tms_stime; | |
100 | compat_clock_t tms_cutime; | |
101 | compat_clock_t tms_cstime; | |
102 | }; | |
103 | ||
88959ea9 SR |
104 | struct compat_timex { |
105 | compat_uint_t modes; | |
106 | compat_long_t offset; | |
107 | compat_long_t freq; | |
108 | compat_long_t maxerror; | |
109 | compat_long_t esterror; | |
110 | compat_int_t status; | |
111 | compat_long_t constant; | |
112 | compat_long_t precision; | |
113 | compat_long_t tolerance; | |
114 | struct compat_timeval time; | |
115 | compat_long_t tick; | |
116 | compat_long_t ppsfreq; | |
117 | compat_long_t jitter; | |
118 | compat_int_t shift; | |
119 | compat_long_t stabil; | |
120 | compat_long_t jitcnt; | |
121 | compat_long_t calcnt; | |
122 | compat_long_t errcnt; | |
123 | compat_long_t stbcnt; | |
153b5d05 | 124 | compat_int_t tai; |
88959ea9 | 125 | |
4800a5bb CM |
126 | compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; |
127 | compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; | |
128 | compat_int_t:32; compat_int_t:32; compat_int_t:32; | |
88959ea9 SR |
129 | }; |
130 | ||
1da177e4 LT |
131 | #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) |
132 | ||
133 | typedef struct { | |
134 | compat_sigset_word sig[_COMPAT_NSIG_WORDS]; | |
135 | } compat_sigset_t; | |
136 | ||
08d32fe5 | 137 | struct compat_sigaction { |
2a148698 | 138 | #ifndef __ARCH_HAS_IRIX_SIGACTION |
08d32fe5 AV |
139 | compat_uptr_t sa_handler; |
140 | compat_ulong_t sa_flags; | |
141 | #else | |
2a148698 | 142 | compat_uint_t sa_flags; |
08d32fe5 AV |
143 | compat_uptr_t sa_handler; |
144 | #endif | |
145 | #ifdef __ARCH_HAS_SA_RESTORER | |
146 | compat_uptr_t sa_restorer; | |
147 | #endif | |
148 | compat_sigset_t sa_mask __packed; | |
149 | }; | |
08d32fe5 | 150 | |
6684ba20 PA |
151 | /* |
152 | * These functions operate on 32- or 64-bit specs depending on | |
81993e81 | 153 | * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments. |
6684ba20 PA |
154 | */ |
155 | extern int compat_get_timespec(struct timespec *, const void __user *); | |
156 | extern int compat_put_timespec(const struct timespec *, void __user *); | |
157 | extern int compat_get_timeval(struct timeval *, const void __user *); | |
158 | extern int compat_put_timeval(const struct timeval *, void __user *); | |
1da177e4 | 159 | |
81993e81 PA |
160 | /* |
161 | * This function convert a timespec if necessary and returns a *user | |
162 | * space* pointer. If no conversion is necessary, it returns the | |
163 | * initial pointer. NULL is a legitimate argument and will always | |
164 | * output NULL. | |
165 | */ | |
166 | extern int compat_convert_timespec(struct timespec __user **, | |
167 | const void __user *); | |
168 | ||
1da177e4 LT |
169 | struct compat_iovec { |
170 | compat_uptr_t iov_base; | |
171 | compat_size_t iov_len; | |
172 | }; | |
173 | ||
174 | struct compat_rlimit { | |
175 | compat_ulong_t rlim_cur; | |
176 | compat_ulong_t rlim_max; | |
177 | }; | |
178 | ||
179 | struct compat_rusage { | |
180 | struct compat_timeval ru_utime; | |
181 | struct compat_timeval ru_stime; | |
182 | compat_long_t ru_maxrss; | |
183 | compat_long_t ru_ixrss; | |
184 | compat_long_t ru_idrss; | |
185 | compat_long_t ru_isrss; | |
186 | compat_long_t ru_minflt; | |
187 | compat_long_t ru_majflt; | |
188 | compat_long_t ru_nswap; | |
189 | compat_long_t ru_inblock; | |
190 | compat_long_t ru_oublock; | |
191 | compat_long_t ru_msgsnd; | |
192 | compat_long_t ru_msgrcv; | |
193 | compat_long_t ru_nsignals; | |
194 | compat_long_t ru_nvcsw; | |
195 | compat_long_t ru_nivcsw; | |
196 | }; | |
197 | ||
4800a5bb CM |
198 | extern int put_compat_rusage(const struct rusage *, |
199 | struct compat_rusage __user *); | |
1da177e4 LT |
200 | |
201 | struct compat_siginfo; | |
202 | ||
203 | extern asmlinkage long compat_sys_waitid(int, compat_pid_t, | |
204 | struct compat_siginfo __user *, int, | |
205 | struct compat_rusage __user *); | |
206 | ||
207 | struct compat_dirent { | |
208 | u32 d_ino; | |
209 | compat_off_t d_off; | |
210 | u16 d_reclen; | |
211 | char d_name[256]; | |
212 | }; | |
213 | ||
2b1c6bd7 CH |
214 | struct compat_ustat { |
215 | compat_daddr_t f_tfree; | |
216 | compat_ino_t f_tinode; | |
217 | char f_fname[6]; | |
218 | char f_fpack[6]; | |
219 | }; | |
220 | ||
1da177e4 LT |
221 | #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3) |
222 | ||
223 | typedef struct compat_sigevent { | |
224 | compat_sigval_t sigev_value; | |
225 | compat_int_t sigev_signo; | |
226 | compat_int_t sigev_notify; | |
227 | union { | |
228 | compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE]; | |
229 | compat_int_t _tid; | |
230 | ||
231 | struct { | |
232 | compat_uptr_t _function; | |
233 | compat_uptr_t _attribute; | |
234 | } _sigev_thread; | |
235 | } _sigev_un; | |
236 | } compat_sigevent_t; | |
237 | ||
2dceba14 AB |
238 | struct compat_ifmap { |
239 | compat_ulong_t mem_start; | |
240 | compat_ulong_t mem_end; | |
241 | unsigned short base_addr; | |
242 | unsigned char irq; | |
243 | unsigned char dma; | |
244 | unsigned char port; | |
245 | }; | |
246 | ||
4800a5bb | 247 | struct compat_if_settings { |
7a50a240 AB |
248 | unsigned int type; /* Type of physical device or protocol */ |
249 | unsigned int size; /* Size of the data allocated by the caller */ | |
250 | compat_uptr_t ifs_ifsu; /* union of pointers */ | |
251 | }; | |
252 | ||
2dceba14 | 253 | struct compat_ifreq { |
7a50a240 AB |
254 | union { |
255 | char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ | |
256 | } ifr_ifrn; | |
257 | union { | |
258 | struct sockaddr ifru_addr; | |
259 | struct sockaddr ifru_dstaddr; | |
260 | struct sockaddr ifru_broadaddr; | |
261 | struct sockaddr ifru_netmask; | |
262 | struct sockaddr ifru_hwaddr; | |
263 | short ifru_flags; | |
264 | compat_int_t ifru_ivalue; | |
265 | compat_int_t ifru_mtu; | |
266 | struct compat_ifmap ifru_map; | |
267 | char ifru_slave[IFNAMSIZ]; /* Just fits the size */ | |
2dceba14 | 268 | char ifru_newname[IFNAMSIZ]; |
7a50a240 AB |
269 | compat_caddr_t ifru_data; |
270 | struct compat_if_settings ifru_settings; | |
271 | } ifr_ifru; | |
2dceba14 AB |
272 | }; |
273 | ||
274 | struct compat_ifconf { | |
4800a5bb CM |
275 | compat_int_t ifc_len; /* size of buffer */ |
276 | compat_caddr_t ifcbuf; | |
2dceba14 AB |
277 | }; |
278 | ||
34f192c6 IM |
279 | struct compat_robust_list { |
280 | compat_uptr_t next; | |
281 | }; | |
282 | ||
283 | struct compat_robust_list_head { | |
284 | struct compat_robust_list list; | |
285 | compat_long_t futex_offset; | |
286 | compat_uptr_t list_op_pending; | |
287 | }; | |
288 | ||
495dfbf7 AV |
289 | #ifdef CONFIG_COMPAT_OLD_SIGACTION |
290 | struct compat_old_sigaction { | |
291 | compat_uptr_t sa_handler; | |
292 | compat_old_sigset_t sa_mask; | |
293 | compat_ulong_t sa_flags; | |
294 | compat_uptr_t sa_restorer; | |
295 | }; | |
296 | #endif | |
297 | ||
be84cb43 CM |
298 | struct compat_statfs; |
299 | struct compat_statfs64; | |
300 | struct compat_old_linux_dirent; | |
301 | struct compat_linux_dirent; | |
302 | struct linux_dirent64; | |
303 | struct compat_msghdr; | |
304 | struct compat_mmsghdr; | |
305 | struct compat_sysinfo; | |
306 | struct compat_sysctl_args; | |
307 | struct compat_kexec_segment; | |
308 | struct compat_mq_attr; | |
48b25c43 | 309 | struct compat_msgbuf; |
be84cb43 | 310 | |
34f192c6 IM |
311 | extern void compat_exit_robust_list(struct task_struct *curr); |
312 | ||
313 | asmlinkage long | |
314 | compat_sys_set_robust_list(struct compat_robust_list_head __user *head, | |
315 | compat_size_t len); | |
316 | asmlinkage long | |
ba46df98 | 317 | compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, |
34f192c6 | 318 | compat_size_t __user *len_ptr); |
1da177e4 | 319 | |
56e41d3c | 320 | asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32); |
0e65a81b AV |
321 | asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg); |
322 | asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg); | |
323 | asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp, | |
05ba3f1a | 324 | compat_ssize_t msgsz, int msgflg); |
0e65a81b | 325 | asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp, |
291fdb0b | 326 | compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg); |
48b25c43 | 327 | long compat_sys_msgctl(int first, int second, void __user *uptr); |
1da177e4 LT |
328 | long compat_sys_shmctl(int first, int second, void __user *uptr); |
329 | long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, | |
330 | unsigned nsems, const struct compat_timespec __user *timeout); | |
331 | asmlinkage long compat_sys_keyctl(u32 option, | |
332 | u32 arg2, u32 arg3, u32 arg4, u32 arg5); | |
2b1c6bd7 | 333 | asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); |
1da177e4 | 334 | |
dfd948e3 HC |
335 | asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd, |
336 | const struct compat_iovec __user *vec, compat_ulong_t vlen); | |
337 | asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd, | |
338 | const struct compat_iovec __user *vec, compat_ulong_t vlen); | |
339 | asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd, | |
f3554f4b | 340 | const struct compat_iovec __user *vec, |
dfd948e3 HC |
341 | compat_ulong_t vlen, u32 pos_low, u32 pos_high); |
342 | asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd, | |
f3554f4b | 343 | const struct compat_iovec __user *vec, |
dfd948e3 | 344 | compat_ulong_t vlen, u32 pos_low, u32 pos_high); |
f17d8b35 MT |
345 | asmlinkage ssize_t compat_sys_preadv2(compat_ulong_t fd, |
346 | const struct compat_iovec __user *vec, | |
347 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, int flags); | |
348 | asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd, | |
349 | const struct compat_iovec __user *vec, | |
350 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, int flags); | |
378a10f3 HC |
351 | |
352 | #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64 | |
353 | asmlinkage long compat_sys_preadv64(unsigned long fd, | |
354 | const struct compat_iovec __user *vec, | |
355 | unsigned long vlen, loff_t pos); | |
356 | #endif | |
357 | ||
358 | #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64 | |
359 | asmlinkage long compat_sys_pwritev64(unsigned long fd, | |
360 | const struct compat_iovec __user *vec, | |
361 | unsigned long vlen, loff_t pos); | |
362 | #endif | |
363 | ||
e5fbf67d | 364 | asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int); |
1da177e4 | 365 | |
38b983b3 AV |
366 | asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv, |
367 | const compat_uptr_t __user *envp); | |
51f39a1f DD |
368 | asmlinkage long compat_sys_execveat(int dfd, const char __user *filename, |
369 | const compat_uptr_t __user *argv, | |
370 | const compat_uptr_t __user *envp, int flags); | |
1da177e4 LT |
371 | |
372 | asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp, | |
373 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
374 | struct compat_timeval __user *tvp); | |
375 | ||
5d0e5283 CH |
376 | asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg); |
377 | ||
c202f298 | 378 | asmlinkage long compat_sys_wait4(compat_pid_t pid, |
7d61c459 AV |
379 | compat_uint_t __user *stat_addr, int options, |
380 | struct compat_rusage __user *ru); | |
c202f298 | 381 | |
1da177e4 LT |
382 | #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) |
383 | ||
384 | #define BITS_TO_COMPAT_LONGS(bits) \ | |
385 | (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG) | |
386 | ||
5fa3839a | 387 | long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask, |
1da177e4 LT |
388 | unsigned long bitmap_size); |
389 | long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, | |
390 | unsigned long bitmap_size); | |
391 | int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); | |
ce395960 | 392 | int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from); |
1da177e4 LT |
393 | int get_compat_sigevent(struct sigevent *event, |
394 | const struct compat_sigevent __user *u_event); | |
62ab4505 TG |
395 | long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig, |
396 | struct compat_siginfo __user *uinfo); | |
495dfbf7 AV |
397 | #ifdef CONFIG_COMPAT_OLD_SIGACTION |
398 | asmlinkage long compat_sys_sigaction(int sig, | |
399 | const struct compat_old_sigaction __user *act, | |
400 | struct compat_old_sigaction __user *oact); | |
401 | #endif | |
1da177e4 | 402 | |
643a6545 AM |
403 | static inline int compat_timeval_compare(struct compat_timeval *lhs, |
404 | struct compat_timeval *rhs) | |
405 | { | |
406 | if (lhs->tv_sec < rhs->tv_sec) | |
407 | return -1; | |
408 | if (lhs->tv_sec > rhs->tv_sec) | |
409 | return 1; | |
410 | return lhs->tv_usec - rhs->tv_usec; | |
411 | } | |
412 | ||
413 | static inline int compat_timespec_compare(struct compat_timespec *lhs, | |
414 | struct compat_timespec *rhs) | |
415 | { | |
416 | if (lhs->tv_sec < rhs->tv_sec) | |
417 | return -1; | |
418 | if (lhs->tv_sec > rhs->tv_sec) | |
419 | return 1; | |
420 | return lhs->tv_nsec - rhs->tv_nsec; | |
421 | } | |
422 | ||
83f5d126 DL |
423 | extern int get_compat_itimerspec(struct itimerspec *dst, |
424 | const struct compat_itimerspec __user *src); | |
425 | extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, | |
426 | const struct itimerspec *src); | |
427 | ||
b418da16 CH |
428 | asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, |
429 | struct timezone __user *tz); | |
430 | asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, | |
431 | struct timezone __user *tz); | |
432 | ||
3158e941 SR |
433 | asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); |
434 | ||
322a56cb AV |
435 | extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat); |
436 | extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set); | |
bebfa101 | 437 | |
3fd59397 SR |
438 | asmlinkage long compat_sys_migrate_pages(compat_pid_t pid, |
439 | compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes, | |
440 | const compat_ulong_t __user *new_nodes); | |
441 | ||
032d82d9 RM |
442 | extern int compat_ptrace_request(struct task_struct *child, |
443 | compat_long_t request, | |
444 | compat_ulong_t addr, compat_ulong_t data); | |
445 | ||
c269f196 RM |
446 | extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request, |
447 | compat_ulong_t addr, compat_ulong_t data); | |
448 | asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, | |
449 | compat_long_t addr, compat_long_t data); | |
c269f196 | 450 | |
d8d14bd0 | 451 | asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t); |
f6dfb4fd DL |
452 | /* |
453 | * epoll (fs/eventpoll.c) compat bits follow ... | |
454 | */ | |
35280bd4 | 455 | struct epoll_event; /* fortunately, this one is fixed-layout */ |
f6dfb4fd | 456 | asmlinkage long compat_sys_epoll_pwait(int epfd, |
35280bd4 | 457 | struct epoll_event __user *events, |
f6dfb4fd DL |
458 | int maxevents, int timeout, |
459 | const compat_sigset_t __user *sigmask, | |
460 | compat_size_t sigsetsize); | |
461 | ||
be84cb43 CM |
462 | asmlinkage long compat_sys_utime(const char __user *filename, |
463 | struct compat_utimbuf __user *t); | |
4800a5bb CM |
464 | asmlinkage long compat_sys_utimensat(unsigned int dfd, |
465 | const char __user *filename, | |
466 | struct compat_timespec __user *t, | |
467 | int flags); | |
97416ce8 | 468 | |
be84cb43 CM |
469 | asmlinkage long compat_sys_time(compat_time_t __user *tloc); |
470 | asmlinkage long compat_sys_stime(compat_time_t __user *tptr); | |
140ff8b0 | 471 | asmlinkage long compat_sys_signalfd(int ufd, |
4800a5bb CM |
472 | const compat_sigset_t __user *sigmask, |
473 | compat_size_t sigsetsize); | |
4d672e7a DL |
474 | asmlinkage long compat_sys_timerfd_settime(int ufd, int flags, |
475 | const struct compat_itimerspec __user *utmr, | |
476 | struct compat_itimerspec __user *otmr); | |
477 | asmlinkage long compat_sys_timerfd_gettime(int ufd, | |
478 | struct compat_itimerspec __user *otmr); | |
140ff8b0 | 479 | |
2f2728f6 | 480 | asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages, |
4c696ba7 HC |
481 | __u32 __user *pages, |
482 | const int __user *nodes, | |
483 | int __user *status, | |
484 | int flags); | |
4800a5bb CM |
485 | asmlinkage long compat_sys_futimesat(unsigned int dfd, |
486 | const char __user *filename, | |
4c696ba7 | 487 | struct compat_timeval __user *t); |
be84cb43 CM |
488 | asmlinkage long compat_sys_utimes(const char __user *filename, |
489 | struct compat_timeval __user *t); | |
4800a5bb | 490 | asmlinkage long compat_sys_newstat(const char __user *filename, |
be84cb43 | 491 | struct compat_stat __user *statbuf); |
4800a5bb | 492 | asmlinkage long compat_sys_newlstat(const char __user *filename, |
be84cb43 | 493 | struct compat_stat __user *statbuf); |
4800a5bb CM |
494 | asmlinkage long compat_sys_newfstatat(unsigned int dfd, |
495 | const char __user *filename, | |
4c696ba7 HC |
496 | struct compat_stat __user *statbuf, |
497 | int flag); | |
be84cb43 | 498 | asmlinkage long compat_sys_newfstat(unsigned int fd, |
4800a5bb | 499 | struct compat_stat __user *statbuf); |
be84cb43 CM |
500 | asmlinkage long compat_sys_statfs(const char __user *pathname, |
501 | struct compat_statfs __user *buf); | |
502 | asmlinkage long compat_sys_fstatfs(unsigned int fd, | |
503 | struct compat_statfs __user *buf); | |
504 | asmlinkage long compat_sys_statfs64(const char __user *pathname, | |
505 | compat_size_t sz, | |
506 | struct compat_statfs64 __user *buf); | |
507 | asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz, | |
508 | struct compat_statfs64 __user *buf); | |
509 | asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd, | |
932602e2 | 510 | compat_ulong_t arg); |
be84cb43 | 511 | asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd, |
932602e2 | 512 | compat_ulong_t arg); |
be84cb43 | 513 | asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p); |
932602e2 HC |
514 | asmlinkage long compat_sys_io_getevents(compat_aio_context_t ctx_id, |
515 | compat_long_t min_nr, | |
516 | compat_long_t nr, | |
be84cb43 CM |
517 | struct io_event __user *events, |
518 | struct compat_timespec __user *timeout); | |
932602e2 | 519 | asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr, |
be84cb43 | 520 | u32 __user *iocb); |
4800a5bb CM |
521 | asmlinkage long compat_sys_mount(const char __user *dev_name, |
522 | const char __user *dir_name, | |
932602e2 | 523 | const char __user *type, compat_ulong_t flags, |
4800a5bb | 524 | const void __user *data); |
be84cb43 CM |
525 | asmlinkage long compat_sys_old_readdir(unsigned int fd, |
526 | struct compat_old_linux_dirent __user *, | |
527 | unsigned int count); | |
528 | asmlinkage long compat_sys_getdents(unsigned int fd, | |
529 | struct compat_linux_dirent __user *dirent, | |
530 | unsigned int count); | |
0473c9b5 | 531 | #ifdef __ARCH_WANT_COMPAT_SYS_GETDENTS64 |
be84cb43 | 532 | asmlinkage long compat_sys_getdents64(unsigned int fd, |
4800a5bb | 533 | struct linux_dirent64 __user *dirent, |
be84cb43 | 534 | unsigned int count); |
0473c9b5 | 535 | #endif |
be84cb43 CM |
536 | asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *, |
537 | unsigned int nr_segs, unsigned int flags); | |
538 | asmlinkage long compat_sys_open(const char __user *filename, int flags, | |
a218d0fd | 539 | umode_t mode); |
f482e1b4 | 540 | asmlinkage long compat_sys_openat(int dfd, const char __user *filename, |
a218d0fd | 541 | int flags, umode_t mode); |
be84cb43 CM |
542 | asmlinkage long compat_sys_open_by_handle_at(int mountdirfd, |
543 | struct file_handle __user *handle, | |
544 | int flags); | |
3f6d078d AV |
545 | asmlinkage long compat_sys_truncate(const char __user *, compat_off_t); |
546 | asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t); | |
be84cb43 CM |
547 | asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp, |
548 | compat_ulong_t __user *outp, | |
549 | compat_ulong_t __user *exp, | |
550 | struct compat_timespec __user *tsp, | |
551 | void __user *sig); | |
552 | asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds, | |
553 | unsigned int nfds, | |
554 | struct compat_timespec __user *tsp, | |
555 | const compat_sigset_t __user *sigmask, | |
556 | compat_size_t sigsetsize); | |
be84cb43 CM |
557 | asmlinkage long compat_sys_signalfd4(int ufd, |
558 | const compat_sigset_t __user *sigmask, | |
559 | compat_size_t sigsetsize, int flags); | |
560 | asmlinkage long compat_sys_get_mempolicy(int __user *policy, | |
561 | compat_ulong_t __user *nmask, | |
562 | compat_ulong_t maxnode, | |
563 | compat_ulong_t addr, | |
564 | compat_ulong_t flags); | |
565 | asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask, | |
566 | compat_ulong_t maxnode); | |
567 | asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len, | |
568 | compat_ulong_t mode, | |
569 | compat_ulong_t __user *nmask, | |
570 | compat_ulong_t maxnode, compat_ulong_t flags); | |
571 | ||
572 | asmlinkage long compat_sys_setsockopt(int fd, int level, int optname, | |
573 | char __user *optval, unsigned int optlen); | |
574 | asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, | |
575 | unsigned flags); | |
507c5f12 CM |
576 | asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg, |
577 | unsigned vlen, unsigned int flags); | |
be84cb43 CM |
578 | asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, |
579 | unsigned int flags); | |
3a49a0f7 | 580 | asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len, |
be84cb43 | 581 | unsigned flags); |
3a49a0f7 | 582 | asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len, |
be84cb43 CM |
583 | unsigned flags, struct sockaddr __user *addr, |
584 | int __user *addrlen); | |
585 | asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, | |
586 | unsigned vlen, unsigned int flags, | |
587 | struct compat_timespec __user *timeout); | |
588 | asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, | |
589 | struct compat_timespec __user *rmtp); | |
590 | asmlinkage long compat_sys_getitimer(int which, | |
591 | struct compat_itimerval __user *it); | |
592 | asmlinkage long compat_sys_setitimer(int which, | |
593 | struct compat_itimerval __user *in, | |
594 | struct compat_itimerval __user *out); | |
595 | asmlinkage long compat_sys_times(struct compat_tms __user *tbuf); | |
596 | asmlinkage long compat_sys_setrlimit(unsigned int resource, | |
597 | struct compat_rlimit __user *rlim); | |
4800a5bb CM |
598 | asmlinkage long compat_sys_getrlimit(unsigned int resource, |
599 | struct compat_rlimit __user *rlim); | |
be84cb43 CM |
600 | asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru); |
601 | asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid, | |
602 | unsigned int len, | |
603 | compat_ulong_t __user *user_mask_ptr); | |
604 | asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, | |
605 | unsigned int len, | |
606 | compat_ulong_t __user *user_mask_ptr); | |
607 | asmlinkage long compat_sys_timer_create(clockid_t which_clock, | |
608 | struct compat_sigevent __user *timer_event_spec, | |
609 | timer_t __user *created_timer_id); | |
610 | asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags, | |
611 | struct compat_itimerspec __user *new, | |
612 | struct compat_itimerspec __user *old); | |
613 | asmlinkage long compat_sys_timer_gettime(timer_t timer_id, | |
614 | struct compat_itimerspec __user *setting); | |
615 | asmlinkage long compat_sys_clock_settime(clockid_t which_clock, | |
616 | struct compat_timespec __user *tp); | |
617 | asmlinkage long compat_sys_clock_gettime(clockid_t which_clock, | |
618 | struct compat_timespec __user *tp); | |
619 | asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock, | |
620 | struct compat_timex __user *tp); | |
621 | asmlinkage long compat_sys_clock_getres(clockid_t which_clock, | |
622 | struct compat_timespec __user *tp); | |
623 | asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, | |
624 | struct compat_timespec __user *rqtp, | |
625 | struct compat_timespec __user *rmtp); | |
4800a5bb | 626 | asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese, |
be84cb43 CM |
627 | struct compat_siginfo __user *uinfo, |
628 | struct compat_timespec __user *uts, compat_size_t sigsetsize); | |
629 | asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, | |
630 | compat_size_t sigsetsize); | |
322a56cb AV |
631 | asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set, |
632 | compat_sigset_t __user *oset, | |
633 | compat_size_t sigsetsize); | |
fe9c1db2 AV |
634 | asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset, |
635 | compat_size_t sigsetsize); | |
08d32fe5 | 636 | #ifndef CONFIG_ODD_RT_SIGACTION |
08d32fe5 AV |
637 | asmlinkage long compat_sys_rt_sigaction(int, |
638 | const struct compat_sigaction __user *, | |
639 | struct compat_sigaction __user *, | |
640 | compat_size_t); | |
641 | #endif | |
75907d4d AV |
642 | asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig, |
643 | struct compat_siginfo __user *uinfo); | |
be84cb43 CM |
644 | asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info); |
645 | asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, | |
932602e2 | 646 | compat_ulong_t arg); |
be84cb43 CM |
647 | asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, |
648 | struct compat_timespec __user *utime, u32 __user *uaddr2, | |
649 | u32 val3); | |
650 | asmlinkage long compat_sys_getsockopt(int fd, int level, int optname, | |
651 | char __user *optval, int __user *optlen); | |
ca2c405a HC |
652 | asmlinkage long compat_sys_kexec_load(compat_ulong_t entry, |
653 | compat_ulong_t nr_segments, | |
be84cb43 | 654 | struct compat_kexec_segment __user *, |
ca2c405a | 655 | compat_ulong_t flags); |
be84cb43 CM |
656 | asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes, |
657 | const struct compat_mq_attr __user *u_mqstat, | |
658 | struct compat_mq_attr __user *u_omqstat); | |
659 | asmlinkage long compat_sys_mq_notify(mqd_t mqdes, | |
660 | const struct compat_sigevent __user *u_notification); | |
661 | asmlinkage long compat_sys_mq_open(const char __user *u_name, | |
662 | int oflag, compat_mode_t mode, | |
663 | struct compat_mq_attr __user *u_attr); | |
664 | asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, | |
665 | const char __user *u_msg_ptr, | |
8eee9093 | 666 | compat_size_t msg_len, unsigned int msg_prio, |
be84cb43 CM |
667 | const struct compat_timespec __user *u_abs_timeout); |
668 | asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes, | |
669 | char __user *u_msg_ptr, | |
8eee9093 | 670 | compat_size_t msg_len, unsigned int __user *u_msg_prio, |
be84cb43 CM |
671 | const struct compat_timespec __user *u_abs_timeout); |
672 | asmlinkage long compat_sys_socketcall(int call, u32 __user *args); | |
673 | asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args); | |
4c696ba7 | 674 | |
b8373363 | 675 | extern ssize_t compat_rw_copy_check_uvector(int type, |
4800a5bb CM |
676 | const struct compat_iovec __user *uvector, |
677 | unsigned long nr_segs, | |
b8373363 | 678 | unsigned long fast_segs, struct iovec *fast_pointer, |
ac34ebb3 | 679 | struct iovec **ret_pointer); |
c41d68a5 PA |
680 | |
681 | extern void __user *compat_alloc_user_space(unsigned long len); | |
682 | ||
a67ba43d CM |
683 | asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid, |
684 | const struct compat_iovec __user *lvec, | |
2f2728f6 HC |
685 | compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, |
686 | compat_ulong_t riovcnt, compat_ulong_t flags); | |
a67ba43d CM |
687 | asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid, |
688 | const struct compat_iovec __user *lvec, | |
2f2728f6 HC |
689 | compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, |
690 | compat_ulong_t riovcnt, compat_ulong_t flags); | |
a67ba43d | 691 | |
8f9c0119 CM |
692 | asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, |
693 | compat_off_t __user *offset, compat_size_t count); | |
19f4fc3a AV |
694 | asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd, |
695 | compat_loff_t __user *offset, compat_size_t count); | |
90268439 AV |
696 | asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr, |
697 | compat_stack_t __user *uoss_ptr); | |
698 | ||
e9fb8b7e CM |
699 | #ifdef __ARCH_WANT_SYS_SIGPENDING |
700 | asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set); | |
701 | #endif | |
702 | ||
703 | #ifdef __ARCH_WANT_SYS_SIGPROCMASK | |
704 | asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset, | |
705 | compat_old_sigset_t __user *oset); | |
706 | #endif | |
707 | ||
90268439 | 708 | int compat_restore_altstack(const compat_stack_t __user *uss); |
c40702c4 | 709 | int __compat_save_altstack(compat_stack_t __user *, unsigned long); |
bd1c149a AV |
710 | #define compat_save_altstack_ex(uss, sp) do { \ |
711 | compat_stack_t __user *__uss = uss; \ | |
712 | struct task_struct *t = current; \ | |
713 | put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \ | |
441398d3 | 714 | put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \ |
bd1c149a | 715 | put_user_ex(t->sas_ss_size, &__uss->ss_size); \ |
441398d3 SS |
716 | if (t->sas_ss_flags & SS_AUTODISARM) \ |
717 | sas_ss_reset(t); \ | |
bd1c149a | 718 | } while (0); |
8f9c0119 | 719 | |
0ad50c38 CM |
720 | asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, |
721 | struct compat_timespec __user *interval); | |
722 | ||
91c2e0bc AV |
723 | asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32, |
724 | int, const char __user *); | |
5180e3e2 AL |
725 | |
726 | /* | |
727 | * For most but not all architectures, "am I in a compat syscall?" and | |
728 | * "am I a compat task?" are the same question. For architectures on which | |
729 | * they aren't the same question, arch code can override in_compat_syscall. | |
730 | */ | |
731 | ||
732 | #ifndef in_compat_syscall | |
733 | static inline bool in_compat_syscall(void) { return is_compat_task(); } | |
734 | #endif | |
735 | ||
cd19c364 FW |
736 | /** |
737 | * ns_to_compat_timeval - Compat version of ns_to_timeval | |
738 | * @nsec: the nanoseconds value to be converted | |
739 | * | |
740 | * Returns the compat_timeval representation of the nsec parameter. | |
741 | */ | |
742 | static inline struct compat_timeval ns_to_compat_timeval(s64 nsec) | |
743 | { | |
744 | struct timeval tv; | |
745 | struct compat_timeval ctv; | |
746 | ||
747 | tv = ns_to_timeval(nsec); | |
748 | ctv.tv_sec = tv.tv_sec; | |
749 | ctv.tv_usec = tv.tv_usec; | |
750 | ||
751 | return ctv; | |
752 | } | |
753 | ||
754 | #else /* !CONFIG_COMPAT */ | |
3c761ea0 LT |
755 | |
756 | #define is_compat_task() (0) | |
5180e3e2 | 757 | static inline bool in_compat_syscall(void) { return false; } |
3c761ea0 | 758 | |
1da177e4 | 759 | #endif /* CONFIG_COMPAT */ |
5180e3e2 | 760 | |
1da177e4 | 761 | #endif /* _LINUX_COMPAT_H */ |