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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef _LINUX_COMPAT_H |
3 | #define _LINUX_COMPAT_H | |
4 | /* | |
5 | * These are the type definitions for the architecture specific | |
6 | * syscall compatibility layer. | |
7 | */ | |
1da177e4 | 8 | |
5180e3e2 AL |
9 | #include <linux/types.h> |
10 | ||
1da177e4 LT |
11 | #ifdef CONFIG_COMPAT |
12 | ||
13 | #include <linux/stat.h> | |
14 | #include <linux/param.h> /* for HZ */ | |
15 | #include <linux/sem.h> | |
2dceba14 AB |
16 | #include <linux/socket.h> |
17 | #include <linux/if.h> | |
be84cb43 | 18 | #include <linux/fs.h> |
45e9683e | 19 | #include <linux/aio_abi.h> /* for aio_context_t */ |
f5b972e9 | 20 | #include <linux/unistd.h> |
1da177e4 LT |
21 | |
22 | #include <asm/compat.h> | |
23 | #include <asm/siginfo.h> | |
3f2e05e9 | 24 | #include <asm/signal.h> |
1da177e4 | 25 | |
45e87781 L |
26 | #ifndef COMPAT_USE_64BIT_TIME |
27 | #define COMPAT_USE_64BIT_TIME 0 | |
28 | #endif | |
29 | ||
46836613 | 30 | #ifndef __SC_DELOUSE |
4f59c718 | 31 | #define __SC_DELOUSE(t,v) ((__force t)(unsigned long)(v)) |
46836613 AV |
32 | #endif |
33 | ||
217f4433 HC |
34 | #define COMPAT_SYSCALL_DEFINE0(name) \ |
35 | asmlinkage long compat_sys_##name(void) | |
36 | ||
46836613 AV |
37 | #define COMPAT_SYSCALL_DEFINE1(name, ...) \ |
38 | COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) | |
39 | #define COMPAT_SYSCALL_DEFINE2(name, ...) \ | |
40 | COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) | |
41 | #define COMPAT_SYSCALL_DEFINE3(name, ...) \ | |
42 | COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) | |
43 | #define COMPAT_SYSCALL_DEFINE4(name, ...) \ | |
44 | COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) | |
45 | #define COMPAT_SYSCALL_DEFINE5(name, ...) \ | |
46 | COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) | |
47 | #define COMPAT_SYSCALL_DEFINE6(name, ...) \ | |
48 | COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) | |
49 | ||
46836613 | 50 | #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ |
83460ec8 AK |
51 | asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ |
52 | __attribute__((alias(__stringify(compat_SyS##name)))); \ | |
07fe6e00 | 53 | static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ |
f9597f24 | 54 | asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\ |
07fe6e00 | 55 | asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ |
46836613 | 56 | { \ |
07fe6e00 | 57 | return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \ |
46836613 | 58 | } \ |
07fe6e00 | 59 | static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) |
46836613 | 60 | |
9b064fc3 AV |
61 | #ifndef compat_user_stack_pointer |
62 | #define compat_user_stack_pointer() current_user_stack_pointer() | |
63 | #endif | |
90268439 AV |
64 | #ifndef compat_sigaltstack /* we'll need that for MIPS */ |
65 | typedef struct compat_sigaltstack { | |
66 | compat_uptr_t ss_sp; | |
67 | int ss_flags; | |
68 | compat_size_t ss_size; | |
69 | } compat_stack_t; | |
70 | #endif | |
b66d0bb1 WD |
71 | #ifndef COMPAT_MINSIGSTKSZ |
72 | #define COMPAT_MINSIGSTKSZ MINSIGSTKSZ | |
73 | #endif | |
90268439 | 74 | |
1da177e4 LT |
75 | #define compat_jiffies_to_clock_t(x) \ |
76 | (((unsigned long)(x) * COMPAT_USER_HZ) / HZ) | |
77 | ||
202e5979 SR |
78 | typedef __compat_uid32_t compat_uid_t; |
79 | typedef __compat_gid32_t compat_gid_t; | |
80 | ||
932602e2 HC |
81 | typedef compat_ulong_t compat_aio_context_t; |
82 | ||
5d0e5283 | 83 | struct compat_sel_arg_struct; |
1da177e4 LT |
84 | struct rusage; |
85 | ||
4800a5bb | 86 | struct compat_itimerspec { |
1da177e4 LT |
87 | struct compat_timespec it_interval; |
88 | struct compat_timespec it_value; | |
89 | }; | |
90 | ||
91 | struct compat_utimbuf { | |
92 | compat_time_t actime; | |
93 | compat_time_t modtime; | |
94 | }; | |
95 | ||
96 | struct compat_itimerval { | |
97 | struct compat_timeval it_interval; | |
98 | struct compat_timeval it_value; | |
99 | }; | |
100 | ||
54ad9c46 AV |
101 | struct itimerval; |
102 | int get_compat_itimerval(struct itimerval *, const struct compat_itimerval __user *); | |
103 | int put_compat_itimerval(struct compat_itimerval __user *, const struct itimerval *); | |
104 | ||
1da177e4 LT |
105 | struct compat_tms { |
106 | compat_clock_t tms_utime; | |
107 | compat_clock_t tms_stime; | |
108 | compat_clock_t tms_cutime; | |
109 | compat_clock_t tms_cstime; | |
110 | }; | |
111 | ||
88959ea9 SR |
112 | struct compat_timex { |
113 | compat_uint_t modes; | |
114 | compat_long_t offset; | |
115 | compat_long_t freq; | |
116 | compat_long_t maxerror; | |
117 | compat_long_t esterror; | |
118 | compat_int_t status; | |
119 | compat_long_t constant; | |
120 | compat_long_t precision; | |
121 | compat_long_t tolerance; | |
122 | struct compat_timeval time; | |
123 | compat_long_t tick; | |
124 | compat_long_t ppsfreq; | |
125 | compat_long_t jitter; | |
126 | compat_int_t shift; | |
127 | compat_long_t stabil; | |
128 | compat_long_t jitcnt; | |
129 | compat_long_t calcnt; | |
130 | compat_long_t errcnt; | |
131 | compat_long_t stbcnt; | |
153b5d05 | 132 | compat_int_t tai; |
88959ea9 | 133 | |
4800a5bb CM |
134 | compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; |
135 | compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; | |
136 | compat_int_t:32; compat_int_t:32; compat_int_t:32; | |
88959ea9 SR |
137 | }; |
138 | ||
3a4d44b6 AV |
139 | struct timex; |
140 | int compat_get_timex(struct timex *, const struct compat_timex __user *); | |
141 | int compat_put_timex(struct compat_timex __user *, const struct timex *); | |
142 | ||
1da177e4 LT |
143 | #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) |
144 | ||
145 | typedef struct { | |
146 | compat_sigset_word sig[_COMPAT_NSIG_WORDS]; | |
147 | } compat_sigset_t; | |
148 | ||
08d32fe5 | 149 | struct compat_sigaction { |
2a148698 | 150 | #ifndef __ARCH_HAS_IRIX_SIGACTION |
08d32fe5 AV |
151 | compat_uptr_t sa_handler; |
152 | compat_ulong_t sa_flags; | |
153 | #else | |
2a148698 | 154 | compat_uint_t sa_flags; |
08d32fe5 AV |
155 | compat_uptr_t sa_handler; |
156 | #endif | |
157 | #ifdef __ARCH_HAS_SA_RESTORER | |
158 | compat_uptr_t sa_restorer; | |
159 | #endif | |
160 | compat_sigset_t sa_mask __packed; | |
161 | }; | |
08d32fe5 | 162 | |
6684ba20 PA |
163 | /* |
164 | * These functions operate on 32- or 64-bit specs depending on | |
81993e81 | 165 | * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments. |
6684ba20 PA |
166 | */ |
167 | extern int compat_get_timespec(struct timespec *, const void __user *); | |
168 | extern int compat_put_timespec(const struct timespec *, void __user *); | |
169 | extern int compat_get_timeval(struct timeval *, const void __user *); | |
170 | extern int compat_put_timeval(const struct timeval *, void __user *); | |
f59dd9c8 DD |
171 | extern int compat_get_timespec64(struct timespec64 *, const void __user *); |
172 | extern int compat_put_timespec64(const struct timespec64 *, void __user *); | |
d5b7ffbf DD |
173 | extern int get_compat_itimerspec64(struct itimerspec64 *its, |
174 | const struct compat_itimerspec __user *uits); | |
175 | extern int put_compat_itimerspec64(const struct itimerspec64 *its, | |
176 | struct compat_itimerspec __user *uits); | |
1da177e4 LT |
177 | |
178 | struct compat_iovec { | |
179 | compat_uptr_t iov_base; | |
180 | compat_size_t iov_len; | |
181 | }; | |
182 | ||
183 | struct compat_rlimit { | |
184 | compat_ulong_t rlim_cur; | |
185 | compat_ulong_t rlim_max; | |
186 | }; | |
187 | ||
188 | struct compat_rusage { | |
189 | struct compat_timeval ru_utime; | |
190 | struct compat_timeval ru_stime; | |
191 | compat_long_t ru_maxrss; | |
192 | compat_long_t ru_ixrss; | |
193 | compat_long_t ru_idrss; | |
194 | compat_long_t ru_isrss; | |
195 | compat_long_t ru_minflt; | |
196 | compat_long_t ru_majflt; | |
197 | compat_long_t ru_nswap; | |
198 | compat_long_t ru_inblock; | |
199 | compat_long_t ru_oublock; | |
200 | compat_long_t ru_msgsnd; | |
201 | compat_long_t ru_msgrcv; | |
202 | compat_long_t ru_nsignals; | |
203 | compat_long_t ru_nvcsw; | |
204 | compat_long_t ru_nivcsw; | |
205 | }; | |
206 | ||
4800a5bb CM |
207 | extern int put_compat_rusage(const struct rusage *, |
208 | struct compat_rusage __user *); | |
1da177e4 LT |
209 | |
210 | struct compat_siginfo; | |
211 | ||
212 | extern asmlinkage long compat_sys_waitid(int, compat_pid_t, | |
213 | struct compat_siginfo __user *, int, | |
214 | struct compat_rusage __user *); | |
215 | ||
216 | struct compat_dirent { | |
217 | u32 d_ino; | |
218 | compat_off_t d_off; | |
219 | u16 d_reclen; | |
220 | char d_name[256]; | |
221 | }; | |
222 | ||
2b1c6bd7 CH |
223 | struct compat_ustat { |
224 | compat_daddr_t f_tfree; | |
225 | compat_ino_t f_tinode; | |
226 | char f_fname[6]; | |
227 | char f_fpack[6]; | |
228 | }; | |
229 | ||
1da177e4 LT |
230 | #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3) |
231 | ||
232 | typedef struct compat_sigevent { | |
233 | compat_sigval_t sigev_value; | |
234 | compat_int_t sigev_signo; | |
235 | compat_int_t sigev_notify; | |
236 | union { | |
237 | compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE]; | |
238 | compat_int_t _tid; | |
239 | ||
240 | struct { | |
241 | compat_uptr_t _function; | |
242 | compat_uptr_t _attribute; | |
243 | } _sigev_thread; | |
244 | } _sigev_un; | |
245 | } compat_sigevent_t; | |
246 | ||
2dceba14 AB |
247 | struct compat_ifmap { |
248 | compat_ulong_t mem_start; | |
249 | compat_ulong_t mem_end; | |
250 | unsigned short base_addr; | |
251 | unsigned char irq; | |
252 | unsigned char dma; | |
253 | unsigned char port; | |
254 | }; | |
255 | ||
4800a5bb | 256 | struct compat_if_settings { |
7a50a240 AB |
257 | unsigned int type; /* Type of physical device or protocol */ |
258 | unsigned int size; /* Size of the data allocated by the caller */ | |
259 | compat_uptr_t ifs_ifsu; /* union of pointers */ | |
260 | }; | |
261 | ||
2dceba14 | 262 | struct compat_ifreq { |
7a50a240 AB |
263 | union { |
264 | char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ | |
265 | } ifr_ifrn; | |
266 | union { | |
267 | struct sockaddr ifru_addr; | |
268 | struct sockaddr ifru_dstaddr; | |
269 | struct sockaddr ifru_broadaddr; | |
270 | struct sockaddr ifru_netmask; | |
271 | struct sockaddr ifru_hwaddr; | |
272 | short ifru_flags; | |
273 | compat_int_t ifru_ivalue; | |
274 | compat_int_t ifru_mtu; | |
275 | struct compat_ifmap ifru_map; | |
276 | char ifru_slave[IFNAMSIZ]; /* Just fits the size */ | |
2dceba14 | 277 | char ifru_newname[IFNAMSIZ]; |
7a50a240 AB |
278 | compat_caddr_t ifru_data; |
279 | struct compat_if_settings ifru_settings; | |
280 | } ifr_ifru; | |
2dceba14 AB |
281 | }; |
282 | ||
283 | struct compat_ifconf { | |
4800a5bb CM |
284 | compat_int_t ifc_len; /* size of buffer */ |
285 | compat_caddr_t ifcbuf; | |
2dceba14 AB |
286 | }; |
287 | ||
34f192c6 IM |
288 | struct compat_robust_list { |
289 | compat_uptr_t next; | |
290 | }; | |
291 | ||
292 | struct compat_robust_list_head { | |
293 | struct compat_robust_list list; | |
294 | compat_long_t futex_offset; | |
295 | compat_uptr_t list_op_pending; | |
296 | }; | |
297 | ||
495dfbf7 AV |
298 | #ifdef CONFIG_COMPAT_OLD_SIGACTION |
299 | struct compat_old_sigaction { | |
300 | compat_uptr_t sa_handler; | |
301 | compat_old_sigset_t sa_mask; | |
302 | compat_ulong_t sa_flags; | |
303 | compat_uptr_t sa_restorer; | |
304 | }; | |
305 | #endif | |
306 | ||
f1c316a3 SM |
307 | struct compat_keyctl_kdf_params { |
308 | compat_uptr_t hashname; | |
309 | compat_uptr_t otherinfo; | |
310 | __u32 otherinfolen; | |
311 | __u32 __spare[8]; | |
312 | }; | |
313 | ||
be84cb43 CM |
314 | struct compat_statfs; |
315 | struct compat_statfs64; | |
316 | struct compat_old_linux_dirent; | |
317 | struct compat_linux_dirent; | |
318 | struct linux_dirent64; | |
319 | struct compat_msghdr; | |
320 | struct compat_mmsghdr; | |
321 | struct compat_sysinfo; | |
322 | struct compat_sysctl_args; | |
323 | struct compat_kexec_segment; | |
324 | struct compat_mq_attr; | |
48b25c43 | 325 | struct compat_msgbuf; |
be84cb43 | 326 | |
34f192c6 IM |
327 | extern void compat_exit_robust_list(struct task_struct *curr); |
328 | ||
329 | asmlinkage long | |
330 | compat_sys_set_robust_list(struct compat_robust_list_head __user *head, | |
331 | compat_size_t len); | |
332 | asmlinkage long | |
ba46df98 | 333 | compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, |
34f192c6 | 334 | compat_size_t __user *len_ptr); |
1da177e4 | 335 | |
56e41d3c | 336 | asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32); |
0e65a81b AV |
337 | asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg); |
338 | asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg); | |
339 | asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp, | |
05ba3f1a | 340 | compat_ssize_t msgsz, int msgflg); |
0e65a81b | 341 | asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp, |
291fdb0b | 342 | compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg); |
48b25c43 | 343 | long compat_sys_msgctl(int first, int second, void __user *uptr); |
1da177e4 LT |
344 | long compat_sys_shmctl(int first, int second, void __user *uptr); |
345 | long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, | |
346 | unsigned nsems, const struct compat_timespec __user *timeout); | |
347 | asmlinkage long compat_sys_keyctl(u32 option, | |
348 | u32 arg2, u32 arg3, u32 arg4, u32 arg5); | |
2b1c6bd7 | 349 | asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); |
1da177e4 | 350 | |
dfd948e3 HC |
351 | asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd, |
352 | const struct compat_iovec __user *vec, compat_ulong_t vlen); | |
353 | asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd, | |
354 | const struct compat_iovec __user *vec, compat_ulong_t vlen); | |
355 | asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd, | |
f3554f4b | 356 | const struct compat_iovec __user *vec, |
dfd948e3 HC |
357 | compat_ulong_t vlen, u32 pos_low, u32 pos_high); |
358 | asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd, | |
f3554f4b | 359 | const struct compat_iovec __user *vec, |
dfd948e3 | 360 | compat_ulong_t vlen, u32 pos_low, u32 pos_high); |
f17d8b35 MT |
361 | asmlinkage ssize_t compat_sys_preadv2(compat_ulong_t fd, |
362 | const struct compat_iovec __user *vec, | |
ddef7ed2 | 363 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags); |
f17d8b35 MT |
364 | asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd, |
365 | const struct compat_iovec __user *vec, | |
ddef7ed2 | 366 | compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags); |
378a10f3 HC |
367 | |
368 | #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64 | |
369 | asmlinkage long compat_sys_preadv64(unsigned long fd, | |
370 | const struct compat_iovec __user *vec, | |
371 | unsigned long vlen, loff_t pos); | |
372 | #endif | |
373 | ||
374 | #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64 | |
375 | asmlinkage long compat_sys_pwritev64(unsigned long fd, | |
376 | const struct compat_iovec __user *vec, | |
377 | unsigned long vlen, loff_t pos); | |
378 | #endif | |
379 | ||
ddef7ed2 CH |
380 | #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64V2 |
381 | asmlinkage long compat_sys_readv64v2(unsigned long fd, | |
382 | const struct compat_iovec __user *vec, | |
383 | unsigned long vlen, loff_t pos, rwf_t flags); | |
384 | #endif | |
385 | ||
386 | #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64V2 | |
387 | asmlinkage long compat_sys_pwritev64v2(unsigned long fd, | |
388 | const struct compat_iovec __user *vec, | |
389 | unsigned long vlen, loff_t pos, rwf_t flags); | |
390 | #endif | |
391 | ||
e5fbf67d | 392 | asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int); |
1da177e4 | 393 | |
38b983b3 AV |
394 | asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv, |
395 | const compat_uptr_t __user *envp); | |
51f39a1f DD |
396 | asmlinkage long compat_sys_execveat(int dfd, const char __user *filename, |
397 | const compat_uptr_t __user *argv, | |
398 | const compat_uptr_t __user *envp, int flags); | |
1da177e4 LT |
399 | |
400 | asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp, | |
401 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
402 | struct compat_timeval __user *tvp); | |
403 | ||
5d0e5283 CH |
404 | asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg); |
405 | ||
c202f298 | 406 | asmlinkage long compat_sys_wait4(compat_pid_t pid, |
7d61c459 AV |
407 | compat_uint_t __user *stat_addr, int options, |
408 | struct compat_rusage __user *ru); | |
c202f298 | 409 | |
1da177e4 LT |
410 | #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) |
411 | ||
1e1fc133 | 412 | #define BITS_TO_COMPAT_LONGS(bits) DIV_ROUND_UP(bits, BITS_PER_COMPAT_LONG) |
1da177e4 | 413 | |
5fa3839a | 414 | long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask, |
1da177e4 LT |
415 | unsigned long bitmap_size); |
416 | long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, | |
417 | unsigned long bitmap_size); | |
418 | int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); | |
ce395960 | 419 | int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from); |
1da177e4 LT |
420 | int get_compat_sigevent(struct sigevent *event, |
421 | const struct compat_sigevent __user *u_event); | |
62ab4505 TG |
422 | long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig, |
423 | struct compat_siginfo __user *uinfo); | |
495dfbf7 AV |
424 | #ifdef CONFIG_COMPAT_OLD_SIGACTION |
425 | asmlinkage long compat_sys_sigaction(int sig, | |
426 | const struct compat_old_sigaction __user *act, | |
427 | struct compat_old_sigaction __user *oact); | |
428 | #endif | |
1da177e4 | 429 | |
643a6545 AM |
430 | static inline int compat_timeval_compare(struct compat_timeval *lhs, |
431 | struct compat_timeval *rhs) | |
432 | { | |
433 | if (lhs->tv_sec < rhs->tv_sec) | |
434 | return -1; | |
435 | if (lhs->tv_sec > rhs->tv_sec) | |
436 | return 1; | |
437 | return lhs->tv_usec - rhs->tv_usec; | |
438 | } | |
439 | ||
440 | static inline int compat_timespec_compare(struct compat_timespec *lhs, | |
441 | struct compat_timespec *rhs) | |
442 | { | |
443 | if (lhs->tv_sec < rhs->tv_sec) | |
444 | return -1; | |
445 | if (lhs->tv_sec > rhs->tv_sec) | |
446 | return 1; | |
447 | return lhs->tv_nsec - rhs->tv_nsec; | |
448 | } | |
449 | ||
83f5d126 DL |
450 | extern int get_compat_itimerspec(struct itimerspec *dst, |
451 | const struct compat_itimerspec __user *src); | |
452 | extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, | |
453 | const struct itimerspec *src); | |
454 | ||
b418da16 CH |
455 | asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, |
456 | struct timezone __user *tz); | |
457 | asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, | |
458 | struct timezone __user *tz); | |
459 | ||
3158e941 SR |
460 | asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); |
461 | ||
322a56cb AV |
462 | extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat); |
463 | extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set); | |
bebfa101 | 464 | |
3fd59397 SR |
465 | asmlinkage long compat_sys_migrate_pages(compat_pid_t pid, |
466 | compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes, | |
467 | const compat_ulong_t __user *new_nodes); | |
468 | ||
032d82d9 RM |
469 | extern int compat_ptrace_request(struct task_struct *child, |
470 | compat_long_t request, | |
471 | compat_ulong_t addr, compat_ulong_t data); | |
472 | ||
c269f196 RM |
473 | extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request, |
474 | compat_ulong_t addr, compat_ulong_t data); | |
475 | asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, | |
476 | compat_long_t addr, compat_long_t data); | |
c269f196 | 477 | |
d8d14bd0 | 478 | asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t); |
f6dfb4fd DL |
479 | /* |
480 | * epoll (fs/eventpoll.c) compat bits follow ... | |
481 | */ | |
35280bd4 | 482 | struct epoll_event; /* fortunately, this one is fixed-layout */ |
f6dfb4fd | 483 | asmlinkage long compat_sys_epoll_pwait(int epfd, |
35280bd4 | 484 | struct epoll_event __user *events, |
f6dfb4fd DL |
485 | int maxevents, int timeout, |
486 | const compat_sigset_t __user *sigmask, | |
487 | compat_size_t sigsetsize); | |
488 | ||
be84cb43 CM |
489 | asmlinkage long compat_sys_utime(const char __user *filename, |
490 | struct compat_utimbuf __user *t); | |
4800a5bb CM |
491 | asmlinkage long compat_sys_utimensat(unsigned int dfd, |
492 | const char __user *filename, | |
493 | struct compat_timespec __user *t, | |
494 | int flags); | |
97416ce8 | 495 | |
be84cb43 CM |
496 | asmlinkage long compat_sys_time(compat_time_t __user *tloc); |
497 | asmlinkage long compat_sys_stime(compat_time_t __user *tptr); | |
140ff8b0 | 498 | asmlinkage long compat_sys_signalfd(int ufd, |
4800a5bb CM |
499 | const compat_sigset_t __user *sigmask, |
500 | compat_size_t sigsetsize); | |
4d672e7a DL |
501 | asmlinkage long compat_sys_timerfd_settime(int ufd, int flags, |
502 | const struct compat_itimerspec __user *utmr, | |
503 | struct compat_itimerspec __user *otmr); | |
504 | asmlinkage long compat_sys_timerfd_gettime(int ufd, | |
505 | struct compat_itimerspec __user *otmr); | |
140ff8b0 | 506 | |
2f2728f6 | 507 | asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages, |
4c696ba7 HC |
508 | __u32 __user *pages, |
509 | const int __user *nodes, | |
510 | int __user *status, | |
511 | int flags); | |
4800a5bb CM |
512 | asmlinkage long compat_sys_futimesat(unsigned int dfd, |
513 | const char __user *filename, | |
4c696ba7 | 514 | struct compat_timeval __user *t); |
be84cb43 CM |
515 | asmlinkage long compat_sys_utimes(const char __user *filename, |
516 | struct compat_timeval __user *t); | |
4800a5bb | 517 | asmlinkage long compat_sys_newstat(const char __user *filename, |
be84cb43 | 518 | struct compat_stat __user *statbuf); |
4800a5bb | 519 | asmlinkage long compat_sys_newlstat(const char __user *filename, |
be84cb43 | 520 | struct compat_stat __user *statbuf); |
4800a5bb CM |
521 | asmlinkage long compat_sys_newfstatat(unsigned int dfd, |
522 | const char __user *filename, | |
4c696ba7 HC |
523 | struct compat_stat __user *statbuf, |
524 | int flag); | |
be84cb43 | 525 | asmlinkage long compat_sys_newfstat(unsigned int fd, |
4800a5bb | 526 | struct compat_stat __user *statbuf); |
be84cb43 CM |
527 | asmlinkage long compat_sys_statfs(const char __user *pathname, |
528 | struct compat_statfs __user *buf); | |
529 | asmlinkage long compat_sys_fstatfs(unsigned int fd, | |
530 | struct compat_statfs __user *buf); | |
531 | asmlinkage long compat_sys_statfs64(const char __user *pathname, | |
532 | compat_size_t sz, | |
533 | struct compat_statfs64 __user *buf); | |
534 | asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz, | |
535 | struct compat_statfs64 __user *buf); | |
536 | asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd, | |
932602e2 | 537 | compat_ulong_t arg); |
be84cb43 | 538 | asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd, |
932602e2 | 539 | compat_ulong_t arg); |
be84cb43 | 540 | asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p); |
932602e2 HC |
541 | asmlinkage long compat_sys_io_getevents(compat_aio_context_t ctx_id, |
542 | compat_long_t min_nr, | |
543 | compat_long_t nr, | |
be84cb43 CM |
544 | struct io_event __user *events, |
545 | struct compat_timespec __user *timeout); | |
932602e2 | 546 | asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr, |
be84cb43 | 547 | u32 __user *iocb); |
4800a5bb CM |
548 | asmlinkage long compat_sys_mount(const char __user *dev_name, |
549 | const char __user *dir_name, | |
932602e2 | 550 | const char __user *type, compat_ulong_t flags, |
4800a5bb | 551 | const void __user *data); |
be84cb43 CM |
552 | asmlinkage long compat_sys_old_readdir(unsigned int fd, |
553 | struct compat_old_linux_dirent __user *, | |
554 | unsigned int count); | |
555 | asmlinkage long compat_sys_getdents(unsigned int fd, | |
556 | struct compat_linux_dirent __user *dirent, | |
557 | unsigned int count); | |
be84cb43 CM |
558 | asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *, |
559 | unsigned int nr_segs, unsigned int flags); | |
560 | asmlinkage long compat_sys_open(const char __user *filename, int flags, | |
a218d0fd | 561 | umode_t mode); |
f482e1b4 | 562 | asmlinkage long compat_sys_openat(int dfd, const char __user *filename, |
a218d0fd | 563 | int flags, umode_t mode); |
be84cb43 CM |
564 | asmlinkage long compat_sys_open_by_handle_at(int mountdirfd, |
565 | struct file_handle __user *handle, | |
566 | int flags); | |
3f6d078d AV |
567 | asmlinkage long compat_sys_truncate(const char __user *, compat_off_t); |
568 | asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t); | |
be84cb43 CM |
569 | asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp, |
570 | compat_ulong_t __user *outp, | |
571 | compat_ulong_t __user *exp, | |
572 | struct compat_timespec __user *tsp, | |
573 | void __user *sig); | |
574 | asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds, | |
575 | unsigned int nfds, | |
576 | struct compat_timespec __user *tsp, | |
577 | const compat_sigset_t __user *sigmask, | |
578 | compat_size_t sigsetsize); | |
be84cb43 CM |
579 | asmlinkage long compat_sys_signalfd4(int ufd, |
580 | const compat_sigset_t __user *sigmask, | |
581 | compat_size_t sigsetsize, int flags); | |
582 | asmlinkage long compat_sys_get_mempolicy(int __user *policy, | |
583 | compat_ulong_t __user *nmask, | |
584 | compat_ulong_t maxnode, | |
585 | compat_ulong_t addr, | |
586 | compat_ulong_t flags); | |
587 | asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask, | |
588 | compat_ulong_t maxnode); | |
589 | asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len, | |
590 | compat_ulong_t mode, | |
591 | compat_ulong_t __user *nmask, | |
592 | compat_ulong_t maxnode, compat_ulong_t flags); | |
593 | ||
594 | asmlinkage long compat_sys_setsockopt(int fd, int level, int optname, | |
595 | char __user *optval, unsigned int optlen); | |
596 | asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, | |
597 | unsigned flags); | |
507c5f12 CM |
598 | asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg, |
599 | unsigned vlen, unsigned int flags); | |
be84cb43 CM |
600 | asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, |
601 | unsigned int flags); | |
3a49a0f7 | 602 | asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len, |
be84cb43 | 603 | unsigned flags); |
3a49a0f7 | 604 | asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len, |
be84cb43 CM |
605 | unsigned flags, struct sockaddr __user *addr, |
606 | int __user *addrlen); | |
607 | asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, | |
608 | unsigned vlen, unsigned int flags, | |
609 | struct compat_timespec __user *timeout); | |
610 | asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, | |
611 | struct compat_timespec __user *rmtp); | |
612 | asmlinkage long compat_sys_getitimer(int which, | |
613 | struct compat_itimerval __user *it); | |
614 | asmlinkage long compat_sys_setitimer(int which, | |
615 | struct compat_itimerval __user *in, | |
616 | struct compat_itimerval __user *out); | |
617 | asmlinkage long compat_sys_times(struct compat_tms __user *tbuf); | |
618 | asmlinkage long compat_sys_setrlimit(unsigned int resource, | |
619 | struct compat_rlimit __user *rlim); | |
4800a5bb CM |
620 | asmlinkage long compat_sys_getrlimit(unsigned int resource, |
621 | struct compat_rlimit __user *rlim); | |
be84cb43 CM |
622 | asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru); |
623 | asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid, | |
624 | unsigned int len, | |
625 | compat_ulong_t __user *user_mask_ptr); | |
626 | asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, | |
627 | unsigned int len, | |
628 | compat_ulong_t __user *user_mask_ptr); | |
629 | asmlinkage long compat_sys_timer_create(clockid_t which_clock, | |
630 | struct compat_sigevent __user *timer_event_spec, | |
631 | timer_t __user *created_timer_id); | |
632 | asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags, | |
633 | struct compat_itimerspec __user *new, | |
634 | struct compat_itimerspec __user *old); | |
635 | asmlinkage long compat_sys_timer_gettime(timer_t timer_id, | |
636 | struct compat_itimerspec __user *setting); | |
637 | asmlinkage long compat_sys_clock_settime(clockid_t which_clock, | |
638 | struct compat_timespec __user *tp); | |
639 | asmlinkage long compat_sys_clock_gettime(clockid_t which_clock, | |
640 | struct compat_timespec __user *tp); | |
641 | asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock, | |
642 | struct compat_timex __user *tp); | |
643 | asmlinkage long compat_sys_clock_getres(clockid_t which_clock, | |
644 | struct compat_timespec __user *tp); | |
645 | asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, | |
646 | struct compat_timespec __user *rqtp, | |
647 | struct compat_timespec __user *rmtp); | |
4800a5bb | 648 | asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese, |
be84cb43 CM |
649 | struct compat_siginfo __user *uinfo, |
650 | struct compat_timespec __user *uts, compat_size_t sigsetsize); | |
651 | asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, | |
652 | compat_size_t sigsetsize); | |
322a56cb AV |
653 | asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set, |
654 | compat_sigset_t __user *oset, | |
655 | compat_size_t sigsetsize); | |
fe9c1db2 AV |
656 | asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset, |
657 | compat_size_t sigsetsize); | |
08d32fe5 | 658 | #ifndef CONFIG_ODD_RT_SIGACTION |
08d32fe5 AV |
659 | asmlinkage long compat_sys_rt_sigaction(int, |
660 | const struct compat_sigaction __user *, | |
661 | struct compat_sigaction __user *, | |
662 | compat_size_t); | |
663 | #endif | |
75907d4d AV |
664 | asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig, |
665 | struct compat_siginfo __user *uinfo); | |
be84cb43 CM |
666 | asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info); |
667 | asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, | |
932602e2 | 668 | compat_ulong_t arg); |
be84cb43 CM |
669 | asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, |
670 | struct compat_timespec __user *utime, u32 __user *uaddr2, | |
671 | u32 val3); | |
672 | asmlinkage long compat_sys_getsockopt(int fd, int level, int optname, | |
673 | char __user *optval, int __user *optlen); | |
ca2c405a HC |
674 | asmlinkage long compat_sys_kexec_load(compat_ulong_t entry, |
675 | compat_ulong_t nr_segments, | |
be84cb43 | 676 | struct compat_kexec_segment __user *, |
ca2c405a | 677 | compat_ulong_t flags); |
be84cb43 CM |
678 | asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes, |
679 | const struct compat_mq_attr __user *u_mqstat, | |
680 | struct compat_mq_attr __user *u_omqstat); | |
681 | asmlinkage long compat_sys_mq_notify(mqd_t mqdes, | |
682 | const struct compat_sigevent __user *u_notification); | |
683 | asmlinkage long compat_sys_mq_open(const char __user *u_name, | |
684 | int oflag, compat_mode_t mode, | |
685 | struct compat_mq_attr __user *u_attr); | |
686 | asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, | |
687 | const char __user *u_msg_ptr, | |
8eee9093 | 688 | compat_size_t msg_len, unsigned int msg_prio, |
be84cb43 CM |
689 | const struct compat_timespec __user *u_abs_timeout); |
690 | asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes, | |
691 | char __user *u_msg_ptr, | |
8eee9093 | 692 | compat_size_t msg_len, unsigned int __user *u_msg_prio, |
be84cb43 CM |
693 | const struct compat_timespec __user *u_abs_timeout); |
694 | asmlinkage long compat_sys_socketcall(int call, u32 __user *args); | |
695 | asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args); | |
4c696ba7 | 696 | |
b8373363 | 697 | extern ssize_t compat_rw_copy_check_uvector(int type, |
4800a5bb CM |
698 | const struct compat_iovec __user *uvector, |
699 | unsigned long nr_segs, | |
b8373363 | 700 | unsigned long fast_segs, struct iovec *fast_pointer, |
ac34ebb3 | 701 | struct iovec **ret_pointer); |
c41d68a5 PA |
702 | |
703 | extern void __user *compat_alloc_user_space(unsigned long len); | |
704 | ||
a67ba43d CM |
705 | asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid, |
706 | const struct compat_iovec __user *lvec, | |
2f2728f6 HC |
707 | compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, |
708 | compat_ulong_t riovcnt, compat_ulong_t flags); | |
a67ba43d CM |
709 | asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid, |
710 | const struct compat_iovec __user *lvec, | |
2f2728f6 HC |
711 | compat_ulong_t liovcnt, const struct compat_iovec __user *rvec, |
712 | compat_ulong_t riovcnt, compat_ulong_t flags); | |
a67ba43d | 713 | |
8f9c0119 CM |
714 | asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, |
715 | compat_off_t __user *offset, compat_size_t count); | |
19f4fc3a AV |
716 | asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd, |
717 | compat_loff_t __user *offset, compat_size_t count); | |
90268439 AV |
718 | asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr, |
719 | compat_stack_t __user *uoss_ptr); | |
720 | ||
e9fb8b7e CM |
721 | #ifdef __ARCH_WANT_SYS_SIGPENDING |
722 | asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set); | |
723 | #endif | |
724 | ||
725 | #ifdef __ARCH_WANT_SYS_SIGPROCMASK | |
726 | asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset, | |
727 | compat_old_sigset_t __user *oset); | |
728 | #endif | |
729 | ||
90268439 | 730 | int compat_restore_altstack(const compat_stack_t __user *uss); |
c40702c4 | 731 | int __compat_save_altstack(compat_stack_t __user *, unsigned long); |
bd1c149a AV |
732 | #define compat_save_altstack_ex(uss, sp) do { \ |
733 | compat_stack_t __user *__uss = uss; \ | |
734 | struct task_struct *t = current; \ | |
735 | put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \ | |
441398d3 | 736 | put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \ |
bd1c149a | 737 | put_user_ex(t->sas_ss_size, &__uss->ss_size); \ |
441398d3 SS |
738 | if (t->sas_ss_flags & SS_AUTODISARM) \ |
739 | sas_ss_reset(t); \ | |
bd1c149a | 740 | } while (0); |
8f9c0119 | 741 | |
0ad50c38 CM |
742 | asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, |
743 | struct compat_timespec __user *interval); | |
744 | ||
91c2e0bc AV |
745 | asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32, |
746 | int, const char __user *); | |
5180e3e2 | 747 | |
79170fda KH |
748 | asmlinkage long compat_sys_arch_prctl(int option, unsigned long arg2); |
749 | ||
5180e3e2 AL |
750 | /* |
751 | * For most but not all architectures, "am I in a compat syscall?" and | |
752 | * "am I a compat task?" are the same question. For architectures on which | |
753 | * they aren't the same question, arch code can override in_compat_syscall. | |
754 | */ | |
755 | ||
756 | #ifndef in_compat_syscall | |
757 | static inline bool in_compat_syscall(void) { return is_compat_task(); } | |
758 | #endif | |
759 | ||
cd19c364 FW |
760 | /** |
761 | * ns_to_compat_timeval - Compat version of ns_to_timeval | |
762 | * @nsec: the nanoseconds value to be converted | |
763 | * | |
764 | * Returns the compat_timeval representation of the nsec parameter. | |
765 | */ | |
766 | static inline struct compat_timeval ns_to_compat_timeval(s64 nsec) | |
767 | { | |
768 | struct timeval tv; | |
769 | struct compat_timeval ctv; | |
770 | ||
771 | tv = ns_to_timeval(nsec); | |
772 | ctv.tv_sec = tv.tv_sec; | |
773 | ctv.tv_usec = tv.tv_usec; | |
774 | ||
775 | return ctv; | |
776 | } | |
777 | ||
778 | #else /* !CONFIG_COMPAT */ | |
3c761ea0 LT |
779 | |
780 | #define is_compat_task() (0) | |
5180e3e2 | 781 | static inline bool in_compat_syscall(void) { return false; } |
3c761ea0 | 782 | |
1da177e4 | 783 | #endif /* CONFIG_COMPAT */ |
5180e3e2 | 784 | |
1da177e4 | 785 | #endif /* _LINUX_COMPAT_H */ |