1 #ifndef _LINUX_COMPAT_H
2 #define _LINUX_COMPAT_H
4 * These are the type definitions for the architecture specific
5 * syscall compatibility layer.
10 #include <linux/stat.h>
11 #include <linux/param.h> /* for HZ */
12 #include <linux/sem.h>
13 #include <linux/socket.h>
16 #include <asm/compat.h>
17 #include <asm/siginfo.h>
18 #include <asm/signal.h>
20 #define compat_jiffies_to_clock_t(x) \
21 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
23 typedef __compat_uid32_t compat_uid_t;
24 typedef __compat_gid32_t compat_gid_t;
26 struct compat_sel_arg_struct;
29 struct compat_itimerspec {
30 struct compat_timespec it_interval;
31 struct compat_timespec it_value;
34 struct compat_utimbuf {
36 compat_time_t modtime;
39 struct compat_itimerval {
40 struct compat_timeval it_interval;
41 struct compat_timeval it_value;
45 compat_clock_t tms_utime;
46 compat_clock_t tms_stime;
47 compat_clock_t tms_cutime;
48 compat_clock_t tms_cstime;
55 compat_long_t maxerror;
56 compat_long_t esterror;
58 compat_long_t constant;
59 compat_long_t precision;
60 compat_long_t tolerance;
61 struct compat_timeval time;
63 compat_long_t ppsfreq;
73 compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
74 compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
75 compat_int_t :32; compat_int_t :32; compat_int_t :32;
78 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
81 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
84 extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *);
85 extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *);
88 compat_uptr_t iov_base;
89 compat_size_t iov_len;
92 struct compat_rlimit {
93 compat_ulong_t rlim_cur;
94 compat_ulong_t rlim_max;
97 struct compat_rusage {
98 struct compat_timeval ru_utime;
99 struct compat_timeval ru_stime;
100 compat_long_t ru_maxrss;
101 compat_long_t ru_ixrss;
102 compat_long_t ru_idrss;
103 compat_long_t ru_isrss;
104 compat_long_t ru_minflt;
105 compat_long_t ru_majflt;
106 compat_long_t ru_nswap;
107 compat_long_t ru_inblock;
108 compat_long_t ru_oublock;
109 compat_long_t ru_msgsnd;
110 compat_long_t ru_msgrcv;
111 compat_long_t ru_nsignals;
112 compat_long_t ru_nvcsw;
113 compat_long_t ru_nivcsw;
116 extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *);
118 struct compat_siginfo;
120 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
121 struct compat_siginfo __user *, int,
122 struct compat_rusage __user *);
124 struct compat_dirent {
131 struct compat_ustat {
132 compat_daddr_t f_tfree;
133 compat_ino_t f_tinode;
138 typedef union compat_sigval {
139 compat_int_t sival_int;
140 compat_uptr_t sival_ptr;
143 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
145 typedef struct compat_sigevent {
146 compat_sigval_t sigev_value;
147 compat_int_t sigev_signo;
148 compat_int_t sigev_notify;
150 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
154 compat_uptr_t _function;
155 compat_uptr_t _attribute;
160 struct compat_ifmap {
161 compat_ulong_t mem_start;
162 compat_ulong_t mem_end;
163 unsigned short base_addr;
169 struct compat_if_settings
171 unsigned int type; /* Type of physical device or protocol */
172 unsigned int size; /* Size of the data allocated by the caller */
173 compat_uptr_t ifs_ifsu; /* union of pointers */
176 struct compat_ifreq {
178 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
181 struct sockaddr ifru_addr;
182 struct sockaddr ifru_dstaddr;
183 struct sockaddr ifru_broadaddr;
184 struct sockaddr ifru_netmask;
185 struct sockaddr ifru_hwaddr;
187 compat_int_t ifru_ivalue;
188 compat_int_t ifru_mtu;
189 struct compat_ifmap ifru_map;
190 char ifru_slave[IFNAMSIZ]; /* Just fits the size */
191 char ifru_newname[IFNAMSIZ];
192 compat_caddr_t ifru_data;
193 struct compat_if_settings ifru_settings;
197 struct compat_ifconf {
198 compat_int_t ifc_len; /* size of buffer */
199 compat_caddr_t ifcbuf;
202 struct compat_robust_list {
206 struct compat_robust_list_head {
207 struct compat_robust_list list;
208 compat_long_t futex_offset;
209 compat_uptr_t list_op_pending;
212 extern void compat_exit_robust_list(struct task_struct *curr);
215 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
218 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
219 compat_size_t __user *len_ptr);
221 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
222 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
223 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
224 int version, void __user *uptr);
225 long compat_sys_msgctl(int first, int second, void __user *uptr);
226 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
228 long compat_sys_shmctl(int first, int second, void __user *uptr);
229 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
230 unsigned nsems, const struct compat_timespec __user *timeout);
231 asmlinkage long compat_sys_keyctl(u32 option,
232 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
233 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
235 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
236 const struct compat_iovec __user *vec, unsigned long vlen);
237 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
238 const struct compat_iovec __user *vec, unsigned long vlen);
239 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
240 const struct compat_iovec __user *vec,
241 unsigned long vlen, u32 pos_low, u32 pos_high);
242 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
243 const struct compat_iovec __user *vec,
244 unsigned long vlen, u32 pos_low, u32 pos_high);
246 int compat_do_execve(char * filename, compat_uptr_t __user *argv,
247 compat_uptr_t __user *envp, struct pt_regs * regs);
249 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
250 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
251 struct compat_timeval __user *tvp);
253 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
255 asmlinkage long compat_sys_wait4(compat_pid_t pid,
256 compat_uint_t __user *stat_addr, int options,
257 struct compat_rusage __user *ru);
259 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
261 #define BITS_TO_COMPAT_LONGS(bits) \
262 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
264 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
265 unsigned long bitmap_size);
266 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
267 unsigned long bitmap_size);
268 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
269 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
270 int get_compat_sigevent(struct sigevent *event,
271 const struct compat_sigevent __user *u_event);
272 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
273 struct compat_siginfo __user *uinfo);
275 static inline int compat_timeval_compare(struct compat_timeval *lhs,
276 struct compat_timeval *rhs)
278 if (lhs->tv_sec < rhs->tv_sec)
280 if (lhs->tv_sec > rhs->tv_sec)
282 return lhs->tv_usec - rhs->tv_usec;
285 static inline int compat_timespec_compare(struct compat_timespec *lhs,
286 struct compat_timespec *rhs)
288 if (lhs->tv_sec < rhs->tv_sec)
290 if (lhs->tv_sec > rhs->tv_sec)
292 return lhs->tv_nsec - rhs->tv_nsec;
295 extern int get_compat_itimerspec(struct itimerspec *dst,
296 const struct compat_itimerspec __user *src);
297 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
298 const struct itimerspec *src);
300 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
301 struct timezone __user *tz);
302 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
303 struct timezone __user *tz);
305 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
307 extern int compat_printk(const char *fmt, ...);
308 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
310 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
311 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
312 const compat_ulong_t __user *new_nodes);
314 extern int compat_ptrace_request(struct task_struct *child,
315 compat_long_t request,
316 compat_ulong_t addr, compat_ulong_t data);
318 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
319 compat_ulong_t addr, compat_ulong_t data);
320 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
321 compat_long_t addr, compat_long_t data);
324 * epoll (fs/eventpoll.c) compat bits follow ...
327 #define compat_epoll_event epoll_event
328 asmlinkage long compat_sys_epoll_pwait(int epfd,
329 struct compat_epoll_event __user *events,
330 int maxevents, int timeout,
331 const compat_sigset_t __user *sigmask,
332 compat_size_t sigsetsize);
334 asmlinkage long compat_sys_utimensat(unsigned int dfd, const char __user *filename,
335 struct compat_timespec __user *t, int flags);
337 asmlinkage long compat_sys_signalfd(int ufd,
338 const compat_sigset_t __user *sigmask,
339 compat_size_t sigsetsize);
340 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
341 const struct compat_itimerspec __user *utmr,
342 struct compat_itimerspec __user *otmr);
343 asmlinkage long compat_sys_timerfd_gettime(int ufd,
344 struct compat_itimerspec __user *otmr);
346 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
348 const int __user *nodes,
351 asmlinkage long compat_sys_futimesat(unsigned int dfd, const char __user *filename,
352 struct compat_timeval __user *t);
353 asmlinkage long compat_sys_newfstatat(unsigned int dfd, const char __user * filename,
354 struct compat_stat __user *statbuf,
356 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
357 int flags, int mode);
359 extern ssize_t compat_rw_copy_check_uvector(int type,
360 const struct compat_iovec __user *uvector, unsigned long nr_segs,
361 unsigned long fast_segs, struct iovec *fast_pointer,
362 struct iovec **ret_pointer);
364 extern void __user *compat_alloc_user_space(unsigned long len);
366 #endif /* CONFIG_COMPAT */
367 #endif /* _LINUX_COMPAT_H */