1#ifndef _LINUX_COMPAT_H
2#define _LINUX_COMPAT_H
3
4
5
6
7
8#ifdef CONFIG_COMPAT
9
10#include <linux/stat.h>
11#include <linux/param.h>
12#include <linux/sem.h>
13#include <linux/socket.h>
14#include <linux/if.h>
15
16#include <asm/compat.h>
17#include <asm/siginfo.h>
18#include <asm/signal.h>
19
20#define compat_jiffies_to_clock_t(x) \
21 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
22
23typedef __compat_uid32_t compat_uid_t;
24typedef __compat_gid32_t compat_gid_t;
25
26struct rusage;
27
28struct compat_itimerspec {
29 struct compat_timespec it_interval;
30 struct compat_timespec it_value;
31};
32
33struct compat_utimbuf {
34 compat_time_t actime;
35 compat_time_t modtime;
36};
37
38struct compat_itimerval {
39 struct compat_timeval it_interval;
40 struct compat_timeval it_value;
41};
42
43struct compat_tms {
44 compat_clock_t tms_utime;
45 compat_clock_t tms_stime;
46 compat_clock_t tms_cutime;
47 compat_clock_t tms_cstime;
48};
49
50struct compat_timex {
51 compat_uint_t modes;
52 compat_long_t offset;
53 compat_long_t freq;
54 compat_long_t maxerror;
55 compat_long_t esterror;
56 compat_int_t status;
57 compat_long_t constant;
58 compat_long_t precision;
59 compat_long_t tolerance;
60 struct compat_timeval time;
61 compat_long_t tick;
62 compat_long_t ppsfreq;
63 compat_long_t jitter;
64 compat_int_t shift;
65 compat_long_t stabil;
66 compat_long_t jitcnt;
67 compat_long_t calcnt;
68 compat_long_t errcnt;
69 compat_long_t stbcnt;
70 compat_int_t tai;
71
72 compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
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;
75};
76
77#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
78
79typedef struct {
80 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
81} compat_sigset_t;
82
83extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *);
84extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *);
85
86struct compat_iovec {
87 compat_uptr_t iov_base;
88 compat_size_t iov_len;
89};
90
91struct compat_rlimit {
92 compat_ulong_t rlim_cur;
93 compat_ulong_t rlim_max;
94};
95
96struct compat_rusage {
97 struct compat_timeval ru_utime;
98 struct compat_timeval ru_stime;
99 compat_long_t ru_maxrss;
100 compat_long_t ru_ixrss;
101 compat_long_t ru_idrss;
102 compat_long_t ru_isrss;
103 compat_long_t ru_minflt;
104 compat_long_t ru_majflt;
105 compat_long_t ru_nswap;
106 compat_long_t ru_inblock;
107 compat_long_t ru_oublock;
108 compat_long_t ru_msgsnd;
109 compat_long_t ru_msgrcv;
110 compat_long_t ru_nsignals;
111 compat_long_t ru_nvcsw;
112 compat_long_t ru_nivcsw;
113};
114
115extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *);
116
117struct compat_siginfo;
118
119extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
120 struct compat_siginfo __user *, int,
121 struct compat_rusage __user *);
122
123struct compat_dirent {
124 u32 d_ino;
125 compat_off_t d_off;
126 u16 d_reclen;
127 char d_name[256];
128};
129
130struct compat_ustat {
131 compat_daddr_t f_tfree;
132 compat_ino_t f_tinode;
133 char f_fname[6];
134 char f_fpack[6];
135};
136
137typedef union compat_sigval {
138 compat_int_t sival_int;
139 compat_uptr_t sival_ptr;
140} compat_sigval_t;
141
142#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
143
144typedef struct compat_sigevent {
145 compat_sigval_t sigev_value;
146 compat_int_t sigev_signo;
147 compat_int_t sigev_notify;
148 union {
149 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
150 compat_int_t _tid;
151
152 struct {
153 compat_uptr_t _function;
154 compat_uptr_t _attribute;
155 } _sigev_thread;
156 } _sigev_un;
157} compat_sigevent_t;
158
159struct compat_ifmap {
160 compat_ulong_t mem_start;
161 compat_ulong_t mem_end;
162 unsigned short base_addr;
163 unsigned char irq;
164 unsigned char dma;
165 unsigned char port;
166};
167
168struct compat_if_settings
169{
170 unsigned int type;
171 unsigned int size;
172 compat_uptr_t ifs_ifsu;
173};
174
175struct compat_ifreq {
176 union {
177 char ifrn_name[IFNAMSIZ];
178 } ifr_ifrn;
179 union {
180 struct sockaddr ifru_addr;
181 struct sockaddr ifru_dstaddr;
182 struct sockaddr ifru_broadaddr;
183 struct sockaddr ifru_netmask;
184 struct sockaddr ifru_hwaddr;
185 short ifru_flags;
186 compat_int_t ifru_ivalue;
187 compat_int_t ifru_mtu;
188 struct compat_ifmap ifru_map;
189 char ifru_slave[IFNAMSIZ];
190 char ifru_newname[IFNAMSIZ];
191 compat_caddr_t ifru_data;
192 struct compat_if_settings ifru_settings;
193 } ifr_ifru;
194};
195
196struct compat_ifconf {
197 compat_int_t ifc_len;
198 compat_caddr_t ifcbuf;
199};
200
201struct compat_robust_list {
202 compat_uptr_t next;
203};
204
205struct compat_robust_list_head {
206 struct compat_robust_list list;
207 compat_long_t futex_offset;
208 compat_uptr_t list_op_pending;
209};
210
211extern void compat_exit_robust_list(struct task_struct *curr);
212
213asmlinkage long
214compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
215 compat_size_t len);
216asmlinkage long
217compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
218 compat_size_t __user *len_ptr);
219
220long compat_sys_semctl(int first, int second, int third, void __user *uptr);
221long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
222long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
223 int version, void __user *uptr);
224long compat_sys_msgctl(int first, int second, void __user *uptr);
225long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
226 void __user *uptr);
227long compat_sys_shmctl(int first, int second, void __user *uptr);
228long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
229 unsigned nsems, const struct compat_timespec __user *timeout);
230asmlinkage long compat_sys_keyctl(u32 option,
231 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
232asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
233
234asmlinkage ssize_t compat_sys_readv(unsigned long fd,
235 const struct compat_iovec __user *vec, unsigned long vlen);
236asmlinkage ssize_t compat_sys_writev(unsigned long fd,
237 const struct compat_iovec __user *vec, unsigned long vlen);
238asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
239 const struct compat_iovec __user *vec,
240 unsigned long vlen, u32 pos_low, u32 pos_high);
241asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
242 const struct compat_iovec __user *vec,
243 unsigned long vlen, u32 pos_low, u32 pos_high);
244
245int compat_do_execve(char * filename, compat_uptr_t __user *argv,
246 compat_uptr_t __user *envp, struct pt_regs * regs);
247
248asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
249 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
250 struct compat_timeval __user *tvp);
251
252asmlinkage long compat_sys_wait4(compat_pid_t pid,
253 compat_uint_t __user *stat_addr, int options,
254 struct compat_rusage __user *ru);
255
256#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
257
258#define BITS_TO_COMPAT_LONGS(bits) \
259 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
260
261long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
262 unsigned long bitmap_size);
263long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
264 unsigned long bitmap_size);
265int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
266int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
267int get_compat_sigevent(struct sigevent *event,
268 const struct compat_sigevent __user *u_event);
269long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
270 struct compat_siginfo __user *uinfo);
271
272static inline int compat_timeval_compare(struct compat_timeval *lhs,
273 struct compat_timeval *rhs)
274{
275 if (lhs->tv_sec < rhs->tv_sec)
276 return -1;
277 if (lhs->tv_sec > rhs->tv_sec)
278 return 1;
279 return lhs->tv_usec - rhs->tv_usec;
280}
281
282static inline int compat_timespec_compare(struct compat_timespec *lhs,
283 struct compat_timespec *rhs)
284{
285 if (lhs->tv_sec < rhs->tv_sec)
286 return -1;
287 if (lhs->tv_sec > rhs->tv_sec)
288 return 1;
289 return lhs->tv_nsec - rhs->tv_nsec;
290}
291
292extern int get_compat_itimerspec(struct itimerspec *dst,
293 const struct compat_itimerspec __user *src);
294extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
295 const struct itimerspec *src);
296
297asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
298 struct timezone __user *tz);
299asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
300 struct timezone __user *tz);
301
302asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
303
304extern int compat_printk(const char *fmt, ...);
305extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
306
307asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
308 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
309 const compat_ulong_t __user *new_nodes);
310
311extern int compat_ptrace_request(struct task_struct *child,
312 compat_long_t request,
313 compat_ulong_t addr, compat_ulong_t data);
314
315extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
316 compat_ulong_t addr, compat_ulong_t data);
317asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
318 compat_long_t addr, compat_long_t data);
319
320
321
322
323struct epoll_event;
324#define compat_epoll_event epoll_event
325asmlinkage long compat_sys_epoll_pwait(int epfd,
326 struct compat_epoll_event __user *events,
327 int maxevents, int timeout,
328 const compat_sigset_t __user *sigmask,
329 compat_size_t sigsetsize);
330
331asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename,
332 struct compat_timespec __user *t, int flags);
333
334asmlinkage long compat_sys_signalfd(int ufd,
335 const compat_sigset_t __user *sigmask,
336 compat_size_t sigsetsize);
337asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
338 const struct compat_itimerspec __user *utmr,
339 struct compat_itimerspec __user *otmr);
340asmlinkage long compat_sys_timerfd_gettime(int ufd,
341 struct compat_itimerspec __user *otmr);
342
343asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
344 __u32 __user *pages,
345 const int __user *nodes,
346 int __user *status,
347 int flags);
348asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename,
349 struct compat_timeval __user *t);
350asmlinkage long compat_sys_newfstatat(unsigned int dfd, char __user * filename,
351 struct compat_stat __user *statbuf,
352 int flag);
353asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
354 int flags, int mode);
355
356#endif
357#endif
358
