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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007
8#ifdef CONFIG_COMPAT
9
10#include <linux/stat.h>
11#include <linux/param.h> /* for HZ */
12#include <linux/sem.h>
Arnd Bergmann2dceba12009-11-06 08:09:03 +000013#include <linux/socket.h>
14#include <linux/if.h>
Chris Metcalfbe84cb42011-05-09 13:12:30 -040015#include <linux/fs.h>
Stephen Rothwell45e96832011-05-24 13:28:54 +100016#include <linux/aio_abi.h> /* for aio_context_t */
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18#include <asm/compat.h>
19#include <asm/siginfo.h>
David Howells3f2e05e2006-10-02 14:12:31 +010020#include <asm/signal.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021
H. J. Lu45e87782012-02-10 14:04:27 -080022#ifndef COMPAT_USE_64BIT_TIME
23#define COMPAT_USE_64BIT_TIME 0
24#endif
25
Al Viro46836612012-11-23 09:12:59 -050026#ifndef __SC_DELOUSE
27#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
28#endif
29
Al Viro46836612012-11-23 09:12:59 -050030#define COMPAT_SYSCALL_DEFINE1(name, ...) \
31 COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
32#define COMPAT_SYSCALL_DEFINE2(name, ...) \
33 COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
34#define COMPAT_SYSCALL_DEFINE3(name, ...) \
35 COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
36#define COMPAT_SYSCALL_DEFINE4(name, ...) \
37 COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
38#define COMPAT_SYSCALL_DEFINE5(name, ...) \
39 COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
40#define COMPAT_SYSCALL_DEFINE6(name, ...) \
41 COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
42
Al Viro46836612012-11-23 09:12:59 -050043#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
Al Viro07fe6e02013-01-21 15:03:44 -050044 asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
45 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
Sergei Trofimovichf9597f22013-09-11 14:23:28 -070046 asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\
Al Viro07fe6e02013-01-21 15:03:44 -050047 asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
Al Viro46836612012-11-23 09:12:59 -050048 { \
Al Viro07fe6e02013-01-21 15:03:44 -050049 return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
Al Viro46836612012-11-23 09:12:59 -050050 } \
51 SYSCALL_ALIAS(compat_sys##name, compat_SyS##name); \
Al Viro07fe6e02013-01-21 15:03:44 -050052 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
Al Viro46836612012-11-23 09:12:59 -050053
Al Viro9b064fc2012-12-14 13:49:35 -050054#ifndef compat_user_stack_pointer
55#define compat_user_stack_pointer() current_user_stack_pointer()
56#endif
Al Viro90268432012-12-14 14:47:53 -050057#ifndef compat_sigaltstack /* we'll need that for MIPS */
58typedef struct compat_sigaltstack {
59 compat_uptr_t ss_sp;
60 int ss_flags;
61 compat_size_t ss_size;
62} compat_stack_t;
63#endif
Al Viro90268432012-12-14 14:47:53 -050064
Linus Torvalds1da177e2005-04-16 15:20:36 -070065#define compat_jiffies_to_clock_t(x) \
66 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
67
Stephen Rothwell202e5972005-09-06 15:16:40 -070068typedef __compat_uid32_t compat_uid_t;
69typedef __compat_gid32_t compat_gid_t;
70
Christoph Hellwig5d0e5282010-03-10 15:21:13 -080071struct compat_sel_arg_struct;
Linus Torvalds1da177e2005-04-16 15:20:36 -070072struct rusage;
73
Chris Metcalf4800a5b2011-05-17 14:41:06 -040074struct compat_itimerspec {
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 struct compat_timespec it_interval;
76 struct compat_timespec it_value;
77};
78
79struct compat_utimbuf {
80 compat_time_t actime;
81 compat_time_t modtime;
82};
83
84struct compat_itimerval {
85 struct compat_timeval it_interval;
86 struct compat_timeval it_value;
87};
88
89struct compat_tms {
90 compat_clock_t tms_utime;
91 compat_clock_t tms_stime;
92 compat_clock_t tms_cutime;
93 compat_clock_t tms_cstime;
94};
95
Stephen Rothwell88959ea2006-03-26 01:37:27 -080096struct compat_timex {
97 compat_uint_t modes;
98 compat_long_t offset;
99 compat_long_t freq;
100 compat_long_t maxerror;
101 compat_long_t esterror;
102 compat_int_t status;
103 compat_long_t constant;
104 compat_long_t precision;
105 compat_long_t tolerance;
106 struct compat_timeval time;
107 compat_long_t tick;
108 compat_long_t ppsfreq;
109 compat_long_t jitter;
110 compat_int_t shift;
111 compat_long_t stabil;
112 compat_long_t jitcnt;
113 compat_long_t calcnt;
114 compat_long_t errcnt;
115 compat_long_t stbcnt;
Roman Zippel153b5d02008-05-01 04:34:37 -0700116 compat_int_t tai;
Stephen Rothwell88959ea2006-03-26 01:37:27 -0800117
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400118 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
119 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
120 compat_int_t:32; compat_int_t:32; compat_int_t:32;
Stephen Rothwell88959ea2006-03-26 01:37:27 -0800121};
122
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
124
125typedef struct {
126 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
127} compat_sigset_t;
128
Al Viro08d32fe2012-12-25 18:38:15 -0500129struct compat_sigaction {
David Howells2a148692013-03-19 14:00:53 +0000130#ifndef __ARCH_HAS_IRIX_SIGACTION
Al Viro08d32fe2012-12-25 18:38:15 -0500131 compat_uptr_t sa_handler;
132 compat_ulong_t sa_flags;
133#else
David Howells2a148692013-03-19 14:00:53 +0000134 compat_uint_t sa_flags;
Al Viro08d32fe2012-12-25 18:38:15 -0500135 compat_uptr_t sa_handler;
136#endif
137#ifdef __ARCH_HAS_SA_RESTORER
138 compat_uptr_t sa_restorer;
139#endif
140 compat_sigset_t sa_mask __packed;
141};
Al Viro08d32fe2012-12-25 18:38:15 -0500142
H. Peter Anvin6684ba22012-02-19 17:38:00 -0800143/*
144 * These functions operate strictly on struct compat_time*
145 */
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400146extern int get_compat_timespec(struct timespec *,
147 const struct compat_timespec __user *);
148extern int put_compat_timespec(const struct timespec *,
149 struct compat_timespec __user *);
H. Peter Anvin6684ba22012-02-19 17:38:00 -0800150extern int get_compat_timeval(struct timeval *,
151 const struct compat_timeval __user *);
152extern int put_compat_timeval(const struct timeval *,
153 struct compat_timeval __user *);
154/*
155 * These functions operate on 32- or 64-bit specs depending on
156 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the
157 * naming as compat_get/put_ rather than get/put_compat_.
158 */
159extern int compat_get_timespec(struct timespec *, const void __user *);
160extern int compat_put_timespec(const struct timespec *, void __user *);
161extern int compat_get_timeval(struct timeval *, const void __user *);
162extern int compat_put_timeval(const struct timeval *, void __user *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
164struct compat_iovec {
165 compat_uptr_t iov_base;
166 compat_size_t iov_len;
167};
168
169struct compat_rlimit {
170 compat_ulong_t rlim_cur;
171 compat_ulong_t rlim_max;
172};
173
174struct compat_rusage {
175 struct compat_timeval ru_utime;
176 struct compat_timeval ru_stime;
177 compat_long_t ru_maxrss;
178 compat_long_t ru_ixrss;
179 compat_long_t ru_idrss;
180 compat_long_t ru_isrss;
181 compat_long_t ru_minflt;
182 compat_long_t ru_majflt;
183 compat_long_t ru_nswap;
184 compat_long_t ru_inblock;
185 compat_long_t ru_oublock;
186 compat_long_t ru_msgsnd;
187 compat_long_t ru_msgrcv;
188 compat_long_t ru_nsignals;
189 compat_long_t ru_nvcsw;
190 compat_long_t ru_nivcsw;
191};
192
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400193extern int put_compat_rusage(const struct rusage *,
194 struct compat_rusage __user *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195
196struct compat_siginfo;
197
198extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
199 struct compat_siginfo __user *, int,
200 struct compat_rusage __user *);
201
202struct compat_dirent {
203 u32 d_ino;
204 compat_off_t d_off;
205 u16 d_reclen;
206 char d_name[256];
207};
208
Christoph Hellwig2b1c6bd2008-11-28 10:09:09 +0100209struct compat_ustat {
210 compat_daddr_t f_tfree;
211 compat_ino_t f_tinode;
212 char f_fname[6];
213 char f_fpack[6];
214};
215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
217
218typedef struct compat_sigevent {
219 compat_sigval_t sigev_value;
220 compat_int_t sigev_signo;
221 compat_int_t sigev_notify;
222 union {
223 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
224 compat_int_t _tid;
225
226 struct {
227 compat_uptr_t _function;
228 compat_uptr_t _attribute;
229 } _sigev_thread;
230 } _sigev_un;
231} compat_sigevent_t;
232
Arnd Bergmann2dceba12009-11-06 08:09:03 +0000233struct compat_ifmap {
234 compat_ulong_t mem_start;
235 compat_ulong_t mem_end;
236 unsigned short base_addr;
237 unsigned char irq;
238 unsigned char dma;
239 unsigned char port;
240};
241
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400242struct compat_if_settings {
Arnd Bergmann7a50a242009-11-08 20:57:03 -0800243 unsigned int type; /* Type of physical device or protocol */
244 unsigned int size; /* Size of the data allocated by the caller */
245 compat_uptr_t ifs_ifsu; /* union of pointers */
246};
247
Arnd Bergmann2dceba12009-11-06 08:09:03 +0000248struct compat_ifreq {
Arnd Bergmann7a50a242009-11-08 20:57:03 -0800249 union {
250 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
251 } ifr_ifrn;
252 union {
253 struct sockaddr ifru_addr;
254 struct sockaddr ifru_dstaddr;
255 struct sockaddr ifru_broadaddr;
256 struct sockaddr ifru_netmask;
257 struct sockaddr ifru_hwaddr;
258 short ifru_flags;
259 compat_int_t ifru_ivalue;
260 compat_int_t ifru_mtu;
261 struct compat_ifmap ifru_map;
262 char ifru_slave[IFNAMSIZ]; /* Just fits the size */
Arnd Bergmann2dceba12009-11-06 08:09:03 +0000263 char ifru_newname[IFNAMSIZ];
Arnd Bergmann7a50a242009-11-08 20:57:03 -0800264 compat_caddr_t ifru_data;
265 struct compat_if_settings ifru_settings;
266 } ifr_ifru;
Arnd Bergmann2dceba12009-11-06 08:09:03 +0000267};
268
269struct compat_ifconf {
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400270 compat_int_t ifc_len; /* size of buffer */
271 compat_caddr_t ifcbuf;
Arnd Bergmann2dceba12009-11-06 08:09:03 +0000272};
273
Ingo Molnar34f192c2006-03-27 01:16:24 -0800274struct compat_robust_list {
275 compat_uptr_t next;
276};
277
278struct compat_robust_list_head {
279 struct compat_robust_list list;
280 compat_long_t futex_offset;
281 compat_uptr_t list_op_pending;
282};
283
Al Viro495dfbf2012-12-25 19:09:45 -0500284#ifdef CONFIG_COMPAT_OLD_SIGACTION
285struct compat_old_sigaction {
286 compat_uptr_t sa_handler;
287 compat_old_sigset_t sa_mask;
288 compat_ulong_t sa_flags;
289 compat_uptr_t sa_restorer;
290};
291#endif
292
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400293struct compat_statfs;
294struct compat_statfs64;
295struct compat_old_linux_dirent;
296struct compat_linux_dirent;
297struct linux_dirent64;
298struct compat_msghdr;
299struct compat_mmsghdr;
300struct compat_sysinfo;
301struct compat_sysctl_args;
302struct compat_kexec_segment;
303struct compat_mq_attr;
Chris Metcalf48b25c42012-03-15 13:13:38 -0400304struct compat_msgbuf;
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400305
Ingo Molnar34f192c2006-03-27 01:16:24 -0800306extern void compat_exit_robust_list(struct task_struct *curr);
307
308asmlinkage long
309compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
310 compat_size_t len);
311asmlinkage long
Al Viroba46df92006-10-10 22:46:07 +0100312compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
Ingo Molnar34f192c2006-03-27 01:16:24 -0800313 compat_size_t __user *len_ptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314
Al Viro56e41d32013-01-21 23:15:25 -0500315asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
Al Viro0e65a812013-02-03 14:36:44 -0500316asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
317asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
318asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
Will Deacon05ba3f12012-07-30 14:42:43 -0700319 compat_ssize_t msgsz, int msgflg);
Al Viro0e65a812013-02-03 14:36:44 -0500320asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
Will Deacon05ba3f12012-07-30 14:42:43 -0700321 compat_ssize_t msgsz, long msgtyp, int msgflg);
Chris Metcalf48b25c42012-03-15 13:13:38 -0400322long compat_sys_msgctl(int first, int second, void __user *uptr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323long compat_sys_shmctl(int first, int second, void __user *uptr);
324long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
325 unsigned nsems, const struct compat_timespec __user *timeout);
326asmlinkage long compat_sys_keyctl(u32 option,
327 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
Christoph Hellwig2b1c6bd2008-11-28 10:09:09 +0100328asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
330asmlinkage ssize_t compat_sys_readv(unsigned long fd,
331 const struct compat_iovec __user *vec, unsigned long vlen);
332asmlinkage ssize_t compat_sys_writev(unsigned long fd,
333 const struct compat_iovec __user *vec, unsigned long vlen);
Gerd Hoffmannf3554f42009-04-02 16:59:23 -0700334asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
335 const struct compat_iovec __user *vec,
Linus Torvalds601cc112009-04-03 08:03:22 -0700336 unsigned long vlen, u32 pos_low, u32 pos_high);
Gerd Hoffmannf3554f42009-04-02 16:59:23 -0700337asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
338 const struct compat_iovec __user *vec,
Linus Torvalds601cc112009-04-03 08:03:22 -0700339 unsigned long vlen, u32 pos_low, u32 pos_high);
Al Viro561c6732013-02-24 10:52:26 -0500340asmlinkage long comat_sys_lseek(unsigned int, compat_off_t, unsigned int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
Al Viro38b983b2012-09-30 13:38:55 -0400342asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
343 const compat_uptr_t __user *envp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
345asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
346 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
347 struct compat_timeval __user *tvp);
348
Christoph Hellwig5d0e5282010-03-10 15:21:13 -0800349asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
350
Thomas Gleixnerc202f292008-01-30 13:30:08 +0100351asmlinkage long compat_sys_wait4(compat_pid_t pid,
Al Viro7d61c452008-03-29 03:09:28 +0000352 compat_uint_t __user *stat_addr, int options,
353 struct compat_rusage __user *ru);
Thomas Gleixnerc202f292008-01-30 13:30:08 +0100354
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
356
357#define BITS_TO_COMPAT_LONGS(bits) \
358 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
359
Stephen Rothwell5fa38392006-10-28 10:38:46 -0700360long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 unsigned long bitmap_size);
362long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
363 unsigned long bitmap_size);
364int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
365int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
366int get_compat_sigevent(struct sigevent *event,
367 const struct compat_sigevent __user *u_event);
Thomas Gleixner62ab4502009-04-04 21:01:06 +0000368long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
369 struct compat_siginfo __user *uinfo);
Al Viro495dfbf2012-12-25 19:09:45 -0500370#ifdef CONFIG_COMPAT_OLD_SIGACTION
371asmlinkage long compat_sys_sigaction(int sig,
372 const struct compat_old_sigaction __user *act,
373 struct compat_old_sigaction __user *oact);
374#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375
Andrew Morton643a6542006-02-11 17:55:52 -0800376static inline int compat_timeval_compare(struct compat_timeval *lhs,
377 struct compat_timeval *rhs)
378{
379 if (lhs->tv_sec < rhs->tv_sec)
380 return -1;
381 if (lhs->tv_sec > rhs->tv_sec)
382 return 1;
383 return lhs->tv_usec - rhs->tv_usec;
384}
385
386static inline int compat_timespec_compare(struct compat_timespec *lhs,
387 struct compat_timespec *rhs)
388{
389 if (lhs->tv_sec < rhs->tv_sec)
390 return -1;
391 if (lhs->tv_sec > rhs->tv_sec)
392 return 1;
393 return lhs->tv_nsec - rhs->tv_nsec;
394}
395
Davide Libenzi83f5d122007-05-10 22:23:18 -0700396extern int get_compat_itimerspec(struct itimerspec *dst,
397 const struct compat_itimerspec __user *src);
398extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
399 const struct itimerspec *src);
400
Christoph Hellwigb418da12008-10-15 22:02:06 -0700401asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
402 struct timezone __user *tz);
403asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
404 struct timezone __user *tz);
405
Stephen Rothwell3158e942006-03-26 01:37:29 -0800406asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
407
Andi Kleenbebfa102006-06-26 13:56:52 +0200408extern int compat_printk(const char *fmt, ...);
Al Viro322a56c2012-12-25 13:32:58 -0500409extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
410extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
Andi Kleenbebfa102006-06-26 13:56:52 +0200411
Stephen Rothwell3fd59392006-11-02 22:07:24 -0800412asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
413 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
414 const compat_ulong_t __user *new_nodes);
415
Roland McGrath032d82d2008-01-30 13:31:47 +0100416extern int compat_ptrace_request(struct task_struct *child,
417 compat_long_t request,
418 compat_ulong_t addr, compat_ulong_t data);
419
Roland McGrathc269f192008-01-30 13:31:48 +0100420extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
421 compat_ulong_t addr, compat_ulong_t data);
422asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
423 compat_long_t addr, compat_long_t data);
Roland McGrathc269f192008-01-30 13:31:48 +0100424
Al Virod5dc77b2013-02-25 18:42:04 -0500425asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, size_t);
Davide Libenzif6dfb4f2007-03-07 20:41:21 -0800426/*
427 * epoll (fs/eventpoll.c) compat bits follow ...
428 */
Al Viro35280bd2013-02-24 14:52:17 -0500429struct epoll_event; /* fortunately, this one is fixed-layout */
Davide Libenzif6dfb4f2007-03-07 20:41:21 -0800430asmlinkage long compat_sys_epoll_pwait(int epfd,
Al Viro35280bd2013-02-24 14:52:17 -0500431 struct epoll_event __user *events,
Davide Libenzif6dfb4f2007-03-07 20:41:21 -0800432 int maxevents, int timeout,
433 const compat_sigset_t __user *sigmask,
434 compat_size_t sigsetsize);
435
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400436asmlinkage long compat_sys_utime(const char __user *filename,
437 struct compat_utimbuf __user *t);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400438asmlinkage long compat_sys_utimensat(unsigned int dfd,
439 const char __user *filename,
440 struct compat_timespec __user *t,
441 int flags);
Stephen Rothwell97416ce2007-05-09 02:32:35 -0700442
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400443asmlinkage long compat_sys_time(compat_time_t __user *tloc);
444asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
Stephen Rothwell140ff8b2007-05-14 13:47:47 +1000445asmlinkage long compat_sys_signalfd(int ufd,
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400446 const compat_sigset_t __user *sigmask,
447 compat_size_t sigsetsize);
Davide Libenzi4d672e72008-02-04 22:27:26 -0800448asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
449 const struct compat_itimerspec __user *utmr,
450 struct compat_itimerspec __user *otmr);
451asmlinkage long compat_sys_timerfd_gettime(int ufd,
452 struct compat_itimerspec __user *otmr);
Stephen Rothwell140ff8b2007-05-14 13:47:47 +1000453
Heiko Carstens4c696ba2009-01-14 14:13:53 +0100454asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
455 __u32 __user *pages,
456 const int __user *nodes,
457 int __user *status,
458 int flags);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400459asmlinkage long compat_sys_futimesat(unsigned int dfd,
460 const char __user *filename,
Heiko Carstens4c696ba2009-01-14 14:13:53 +0100461 struct compat_timeval __user *t);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400462asmlinkage long compat_sys_utimes(const char __user *filename,
463 struct compat_timeval __user *t);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400464asmlinkage long compat_sys_newstat(const char __user *filename,
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400465 struct compat_stat __user *statbuf);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400466asmlinkage long compat_sys_newlstat(const char __user *filename,
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400467 struct compat_stat __user *statbuf);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400468asmlinkage long compat_sys_newfstatat(unsigned int dfd,
469 const char __user *filename,
Heiko Carstens4c696ba2009-01-14 14:13:53 +0100470 struct compat_stat __user *statbuf,
471 int flag);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400472asmlinkage long compat_sys_newfstat(unsigned int fd,
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400473 struct compat_stat __user *statbuf);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400474asmlinkage long compat_sys_statfs(const char __user *pathname,
475 struct compat_statfs __user *buf);
476asmlinkage long compat_sys_fstatfs(unsigned int fd,
477 struct compat_statfs __user *buf);
478asmlinkage long compat_sys_statfs64(const char __user *pathname,
479 compat_size_t sz,
480 struct compat_statfs64 __user *buf);
481asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
482 struct compat_statfs64 __user *buf);
483asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
484 unsigned long arg);
485asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
486 unsigned long arg);
487asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
488asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
489 unsigned long min_nr,
490 unsigned long nr,
491 struct io_event __user *events,
492 struct compat_timespec __user *timeout);
493asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
494 u32 __user *iocb);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400495asmlinkage long compat_sys_mount(const char __user *dev_name,
496 const char __user *dir_name,
497 const char __user *type, unsigned long flags,
498 const void __user *data);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400499asmlinkage long compat_sys_old_readdir(unsigned int fd,
500 struct compat_old_linux_dirent __user *,
501 unsigned int count);
502asmlinkage long compat_sys_getdents(unsigned int fd,
503 struct compat_linux_dirent __user *dirent,
504 unsigned int count);
505asmlinkage long compat_sys_getdents64(unsigned int fd,
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400506 struct linux_dirent64 __user *dirent,
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400507 unsigned int count);
508asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
509 unsigned int nr_segs, unsigned int flags);
510asmlinkage long compat_sys_open(const char __user *filename, int flags,
Al Viroa218d0f2011-11-21 14:59:34 -0500511 umode_t mode);
Al Virof482e1b2012-12-25 20:24:38 -0500512asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
Al Viroa218d0f2011-11-21 14:59:34 -0500513 int flags, umode_t mode);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400514asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
515 struct file_handle __user *handle,
516 int flags);
Al Viro3f6d0782013-02-24 13:49:08 -0500517asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
518asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400519asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
520 compat_ulong_t __user *outp,
521 compat_ulong_t __user *exp,
522 struct compat_timespec __user *tsp,
523 void __user *sig);
524asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
525 unsigned int nfds,
526 struct compat_timespec __user *tsp,
527 const compat_sigset_t __user *sigmask,
528 compat_size_t sigsetsize);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400529asmlinkage long compat_sys_signalfd4(int ufd,
530 const compat_sigset_t __user *sigmask,
531 compat_size_t sigsetsize, int flags);
532asmlinkage long compat_sys_get_mempolicy(int __user *policy,
533 compat_ulong_t __user *nmask,
534 compat_ulong_t maxnode,
535 compat_ulong_t addr,
536 compat_ulong_t flags);
537asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
538 compat_ulong_t maxnode);
539asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
540 compat_ulong_t mode,
541 compat_ulong_t __user *nmask,
542 compat_ulong_t maxnode, compat_ulong_t flags);
543
544asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
545 char __user *optval, unsigned int optlen);
546asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
547 unsigned flags);
Chris Metcalf507c5f12011-06-27 16:18:07 -0700548asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
549 unsigned vlen, unsigned int flags);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400550asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
551 unsigned int flags);
552asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
553 unsigned flags);
554asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
555 unsigned flags, struct sockaddr __user *addr,
556 int __user *addrlen);
557asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
558 unsigned vlen, unsigned int flags,
559 struct compat_timespec __user *timeout);
560asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
561 struct compat_timespec __user *rmtp);
562asmlinkage long compat_sys_getitimer(int which,
563 struct compat_itimerval __user *it);
564asmlinkage long compat_sys_setitimer(int which,
565 struct compat_itimerval __user *in,
566 struct compat_itimerval __user *out);
567asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
568asmlinkage long compat_sys_setrlimit(unsigned int resource,
569 struct compat_rlimit __user *rlim);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400570asmlinkage long compat_sys_getrlimit(unsigned int resource,
571 struct compat_rlimit __user *rlim);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400572asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
573asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
574 unsigned int len,
575 compat_ulong_t __user *user_mask_ptr);
576asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
577 unsigned int len,
578 compat_ulong_t __user *user_mask_ptr);
579asmlinkage long compat_sys_timer_create(clockid_t which_clock,
580 struct compat_sigevent __user *timer_event_spec,
581 timer_t __user *created_timer_id);
582asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
583 struct compat_itimerspec __user *new,
584 struct compat_itimerspec __user *old);
585asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
586 struct compat_itimerspec __user *setting);
587asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
588 struct compat_timespec __user *tp);
589asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
590 struct compat_timespec __user *tp);
591asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
592 struct compat_timex __user *tp);
593asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
594 struct compat_timespec __user *tp);
595asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
596 struct compat_timespec __user *rqtp,
597 struct compat_timespec __user *rmtp);
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400598asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400599 struct compat_siginfo __user *uinfo,
600 struct compat_timespec __user *uts, compat_size_t sigsetsize);
601asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
602 compat_size_t sigsetsize);
Al Viro322a56c2012-12-25 13:32:58 -0500603asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
604 compat_sigset_t __user *oset,
605 compat_size_t sigsetsize);
Al Virofe9c1db2012-12-25 14:31:38 -0500606asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
607 compat_size_t sigsetsize);
Al Viro08d32fe2012-12-25 18:38:15 -0500608#ifndef CONFIG_ODD_RT_SIGACTION
Al Viro08d32fe2012-12-25 18:38:15 -0500609asmlinkage long compat_sys_rt_sigaction(int,
610 const struct compat_sigaction __user *,
611 struct compat_sigaction __user *,
612 compat_size_t);
613#endif
Al Viro75907d42012-12-25 15:19:12 -0500614asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
615 struct compat_siginfo __user *uinfo);
Chris Metcalfbe84cb42011-05-09 13:12:30 -0400616asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
617asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
618 unsigned long arg);
619asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
620 struct compat_timespec __user *utime, u32 __user *uaddr2,
621 u32 val3);
622asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
623 char __user *optval, int __user *optlen);
624asmlinkage long compat_sys_kexec_load(unsigned long entry,
625 unsigned long nr_segments,
626 struct compat_kexec_segment __user *,
627 unsigned long flags);
628asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
629 const struct compat_mq_attr __user *u_mqstat,
630 struct compat_mq_attr __user *u_omqstat);
631asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
632 const struct compat_sigevent __user *u_notification);
633asmlinkage long compat_sys_mq_open(const char __user *u_name,
634 int oflag, compat_mode_t mode,
635 struct compat_mq_attr __user *u_attr);
636asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
637 const char __user *u_msg_ptr,
638 size_t msg_len, unsigned int msg_prio,
639 const struct compat_timespec __user *u_abs_timeout);
640asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
641 char __user *u_msg_ptr,
642 size_t msg_len, unsigned int __user *u_msg_prio,
643 const struct compat_timespec __user *u_abs_timeout);
644asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
645asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
Heiko Carstens4c696ba2009-01-14 14:13:53 +0100646
Jeff Moyerb8373362010-05-26 14:44:25 -0700647extern ssize_t compat_rw_copy_check_uvector(int type,
Chris Metcalf4800a5b2011-05-17 14:41:06 -0400648 const struct compat_iovec __user *uvector,
649 unsigned long nr_segs,
Jeff Moyerb8373362010-05-26 14:44:25 -0700650 unsigned long fast_segs, struct iovec *fast_pointer,
Christopher Yeohac34ebb2012-05-31 16:26:42 -0700651 struct iovec **ret_pointer);
H. Peter Anvinc41d68a2010-09-07 16:16:18 -0700652
653extern void __user *compat_alloc_user_space(unsigned long len);
654
Chris Metcalfa67ba432011-12-01 12:54:31 -0500655asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
656 const struct compat_iovec __user *lvec,
657 unsigned long liovcnt, const struct compat_iovec __user *rvec,
658 unsigned long riovcnt, unsigned long flags);
659asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
660 const struct compat_iovec __user *lvec,
661 unsigned long liovcnt, const struct compat_iovec __user *rvec,
662 unsigned long riovcnt, unsigned long flags);
663
Catalin Marinas8f9c0112012-09-19 12:01:52 +0100664asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
665 compat_off_t __user *offset, compat_size_t count);
Al Viro19f4fc32013-02-24 02:17:03 -0500666asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
667 compat_loff_t __user *offset, compat_size_t count);
Al Viro90268432012-12-14 14:47:53 -0500668asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
669 compat_stack_t __user *uoss_ptr);
670
671int compat_restore_altstack(const compat_stack_t __user *uss);
Al Viroc40702c2012-11-20 14:24:26 -0500672int __compat_save_altstack(compat_stack_t __user *, unsigned long);
Al Virobd1c149a2013-09-01 20:35:01 +0100673#define compat_save_altstack_ex(uss, sp) do { \
674 compat_stack_t __user *__uss = uss; \
675 struct task_struct *t = current; \
676 put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
677 put_user_ex(sas_ss_flags(sp), &__uss->ss_flags); \
678 put_user_ex(t->sas_ss_size, &__uss->ss_size); \
679} while (0);
Catalin Marinas8f9c0112012-09-19 12:01:52 +0100680
Catalin Marinas0ad50c32012-12-17 16:01:45 -0800681asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
682 struct compat_timespec __user *interval);
683
Al Viro91c2e0b2013-03-05 20:10:59 -0500684asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32,
685 int, const char __user *);
Linus Torvalds3c761ea2012-02-26 09:44:55 -0800686#else
687
688#define is_compat_task() (0)
689
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690#endif /* CONFIG_COMPAT */
691#endif /* _LINUX_COMPAT_H */