[net-next-2.6.git] / include / linux / compat.h

#ifndef _LINUX_COMPAT_H
#define _LINUX_COMPAT_H
/*
 * These are the type definitions for the architecture specific
 * syscall compatibility layer.
 */

#ifdef CONFIG_COMPAT

#include <linux/stat.h>
#include <linux/param.h>	/* for HZ */
#include <linux/sem.h>

#include <asm/compat.h>
#include <asm/siginfo.h>
#include <asm/signal.h>

#define compat_jiffies_to_clock_t(x)	\
		(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)

typedef __compat_uid32_t	compat_uid_t;
typedef __compat_gid32_t	compat_gid_t;

struct rusage;

struct compat_itimerspec { 
	struct compat_timespec it_interval;
	struct compat_timespec it_value;
};

struct compat_utimbuf {
	compat_time_t		actime;
	compat_time_t		modtime;
};

struct compat_itimerval {
	struct compat_timeval	it_interval;
	struct compat_timeval	it_value;
};

struct compat_tms {
	compat_clock_t		tms_utime;
	compat_clock_t		tms_stime;
	compat_clock_t		tms_cutime;
	compat_clock_t		tms_cstime;
};

struct compat_timex {
	compat_uint_t modes;
	compat_long_t offset;
	compat_long_t freq;
	compat_long_t maxerror;
	compat_long_t esterror;
	compat_int_t status;
	compat_long_t constant;
	compat_long_t precision;
	compat_long_t tolerance;
	struct compat_timeval time;
	compat_long_t tick;
	compat_long_t ppsfreq;
	compat_long_t jitter;
	compat_int_t shift;
	compat_long_t stabil;
	compat_long_t jitcnt;
	compat_long_t calcnt;
	compat_long_t errcnt;
	compat_long_t stbcnt;

	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
};

#define _COMPAT_NSIG_WORDS	(_COMPAT_NSIG / _COMPAT_NSIG_BPW)

typedef struct {
	compat_sigset_word	sig[_COMPAT_NSIG_WORDS];
} compat_sigset_t;

extern int cp_compat_stat(struct kstat *, struct compat_stat __user *);
extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *);
extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *);

struct compat_iovec {
	compat_uptr_t	iov_base;
	compat_size_t	iov_len;
};

struct compat_rlimit {
	compat_ulong_t	rlim_cur;
	compat_ulong_t	rlim_max;
};

struct compat_rusage {
	struct compat_timeval ru_utime;
	struct compat_timeval ru_stime;
	compat_long_t	ru_maxrss;
	compat_long_t	ru_ixrss;
	compat_long_t	ru_idrss;
	compat_long_t	ru_isrss;
	compat_long_t	ru_minflt;
	compat_long_t	ru_majflt;
	compat_long_t	ru_nswap;
	compat_long_t	ru_inblock;
	compat_long_t	ru_oublock;
	compat_long_t	ru_msgsnd;
	compat_long_t	ru_msgrcv;
	compat_long_t	ru_nsignals;
	compat_long_t	ru_nvcsw;
	compat_long_t	ru_nivcsw;
};

extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *);

struct compat_siginfo;

extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
		struct compat_siginfo __user *, int,
		struct compat_rusage __user *);

struct compat_dirent {
	u32		d_ino;
	compat_off_t	d_off;
	u16		d_reclen;
	char		d_name[256];
};

typedef union compat_sigval {
	compat_int_t	sival_int;
	compat_uptr_t	sival_ptr;
} compat_sigval_t;

#define COMPAT_SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)

typedef struct compat_sigevent {
	compat_sigval_t sigev_value;
	compat_int_t sigev_signo;
	compat_int_t sigev_notify;
	union {
		compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
		compat_int_t _tid;

		struct {
			compat_uptr_t _function;
			compat_uptr_t _attribute;
		} _sigev_thread;
	} _sigev_un;
} compat_sigevent_t;

struct compat_robust_list {
	compat_uptr_t			next;
};

struct compat_robust_list_head {
	struct compat_robust_list	list;
	compat_long_t			futex_offset;
	compat_uptr_t			list_op_pending;
};

extern void compat_exit_robust_list(struct task_struct *curr);

asmlinkage long
compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
			   compat_size_t len);
asmlinkage long
compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
			   compat_size_t __user *len_ptr);

long compat_sys_semctl(int first, int second, int third, void __user *uptr);
long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
		int version, void __user *uptr);
long compat_sys_msgctl(int first, int second, void __user *uptr);
long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
		void __user *uptr);
long compat_sys_shmctl(int first, int second, void __user *uptr);
long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
		unsigned nsems, const struct compat_timespec __user *timeout);
asmlinkage long compat_sys_keyctl(u32 option,
			      u32 arg2, u32 arg3, u32 arg4, u32 arg5);

asmlinkage ssize_t compat_sys_readv(unsigned long fd,
		const struct compat_iovec __user *vec, unsigned long vlen);
asmlinkage ssize_t compat_sys_writev(unsigned long fd,
		const struct compat_iovec __user *vec, unsigned long vlen);

int compat_do_execve(char * filename, compat_uptr_t __user *argv,
	        compat_uptr_t __user *envp, struct pt_regs * regs);

asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
		compat_ulong_t __user *outp, compat_ulong_t __user *exp,
		struct compat_timeval __user *tvp);

#define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))

#define BITS_TO_COMPAT_LONGS(bits) \
	(((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)

long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
		       unsigned long bitmap_size);
long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
		       unsigned long bitmap_size);
int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
int get_compat_sigevent(struct sigevent *event,
		const struct compat_sigevent __user *u_event);

static inline int compat_timeval_compare(struct compat_timeval *lhs,
					struct compat_timeval *rhs)
{
	if (lhs->tv_sec < rhs->tv_sec)
		return -1;
	if (lhs->tv_sec > rhs->tv_sec)
		return 1;
	return lhs->tv_usec - rhs->tv_usec;
}

static inline int compat_timespec_compare(struct compat_timespec *lhs,
					struct compat_timespec *rhs)
{
	if (lhs->tv_sec < rhs->tv_sec)
		return -1;
	if (lhs->tv_sec > rhs->tv_sec)
		return 1;
	return lhs->tv_nsec - rhs->tv_nsec;
}

asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);

extern int compat_printk(const char *fmt, ...);
extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);

asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
		compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
		const compat_ulong_t __user *new_nodes);

/*
 * epoll (fs/eventpoll.c) compat bits follow ...
 */
#ifndef CONFIG_HAS_COMPAT_EPOLL_EVENT
struct epoll_event;
#define compat_epoll_event	epoll_event
#else
asmlinkage long compat_sys_epoll_ctl(int epfd, int op, int fd,
			struct compat_epoll_event __user *event);
asmlinkage long compat_sys_epoll_wait(int epfd,
			struct compat_epoll_event __user *events,
			int maxevents, int timeout);
#endif
asmlinkage long compat_sys_epoll_pwait(int epfd,
			struct compat_epoll_event __user *events,
			int maxevents, int timeout,
			const compat_sigset_t __user *sigmask,
			compat_size_t sigsetsize);

#endif /* CONFIG_COMPAT */
#endif /* _LINUX_COMPAT_H */
Commit	Line	Data
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 LT	7
	8	#ifdef CONFIG_COMPAT
	9
	10	#include <linux/stat.h>
	11	#include <linux/param.h> /* for HZ */
	12	#include <linux/sem.h>
	13
	14	#include <asm/compat.h>
	15	#include <asm/siginfo.h>
3f2e05e9	16	#include <asm/signal.h>
1da177e4 LT	17
	18	#define compat_jiffies_to_clock_t(x) \
	19	(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
	20
202e5979 SR	21	typedef __compat_uid32_t compat_uid_t;
	22	typedef __compat_gid32_t compat_gid_t;
	23
1da177e4 LT	24	struct rusage;
	25
	26	struct compat_itimerspec {
	27	struct compat_timespec it_interval;
	28	struct compat_timespec it_value;
	29	};
	30
	31	struct compat_utimbuf {
	32	compat_time_t actime;
	33	compat_time_t modtime;
	34	};
	35
	36	struct compat_itimerval {
	37	struct compat_timeval it_interval;
	38	struct compat_timeval it_value;
	39	};
	40
	41	struct compat_tms {
	42	compat_clock_t tms_utime;
	43	compat_clock_t tms_stime;
	44	compat_clock_t tms_cutime;
	45	compat_clock_t tms_cstime;
	46	};
	47
88959ea9 SR	48	struct compat_timex {
	49	compat_uint_t modes;
	50	compat_long_t offset;
	51	compat_long_t freq;
	52	compat_long_t maxerror;
	53	compat_long_t esterror;
	54	compat_int_t status;
	55	compat_long_t constant;
	56	compat_long_t precision;
	57	compat_long_t tolerance;
	58	struct compat_timeval time;
	59	compat_long_t tick;
	60	compat_long_t ppsfreq;
	61	compat_long_t jitter;
	62	compat_int_t shift;
	63	compat_long_t stabil;
	64	compat_long_t jitcnt;
	65	compat_long_t calcnt;
	66	compat_long_t errcnt;
	67	compat_long_t stbcnt;
	68
	69	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	70	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	71	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	72	};
	73
1da177e4 LT	74	#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
	75
	76	typedef struct {
	77	compat_sigset_word sig[_COMPAT_NSIG_WORDS];
	78	} compat_sigset_t;
	79
	80	extern int cp_compat_stat(struct kstat , struct compat_stat __user );
	81	extern int get_compat_timespec(struct timespec , const struct compat_timespec __user );
	82	extern int put_compat_timespec(const struct timespec , struct compat_timespec __user );
	83
	84	struct compat_iovec {
	85	compat_uptr_t iov_base;
	86	compat_size_t iov_len;
	87	};
	88
	89	struct compat_rlimit {
	90	compat_ulong_t rlim_cur;
	91	compat_ulong_t rlim_max;
	92	};
	93
	94	struct compat_rusage {
	95	struct compat_timeval ru_utime;
	96	struct compat_timeval ru_stime;
	97	compat_long_t ru_maxrss;
	98	compat_long_t ru_ixrss;
	99	compat_long_t ru_idrss;
	100	compat_long_t ru_isrss;
	101	compat_long_t ru_minflt;
	102	compat_long_t ru_majflt;
	103	compat_long_t ru_nswap;
	104	compat_long_t ru_inblock;
	105	compat_long_t ru_oublock;
	106	compat_long_t ru_msgsnd;
	107	compat_long_t ru_msgrcv;
	108	compat_long_t ru_nsignals;
	109	compat_long_t ru_nvcsw;
	110	compat_long_t ru_nivcsw;
	111	};
	112
	113	extern int put_compat_rusage(const struct rusage , struct compat_rusage __user );
	114
	115	struct compat_siginfo;
	116
	117	extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
	118	struct compat_siginfo __user *, int,
	119	struct compat_rusage __user *);
	120
	121	struct compat_dirent {
	122	u32 d_ino;
	123	compat_off_t d_off;
	124	u16 d_reclen;
	125	char d_name[256];
	126	};
	127
	128	typedef union compat_sigval {
	129	compat_int_t sival_int;
	130	compat_uptr_t sival_ptr;
	131	} compat_sigval_t;
	132
	133	#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
	134
	135	typedef struct compat_sigevent {
	136	compat_sigval_t sigev_value;
	137	compat_int_t sigev_signo;
138	compat_int_t sigev_notify;
139	union {
140	compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
141	compat_int_t _tid;
142
143	struct {
144	compat_uptr_t _function;
145	compat_uptr_t _attribute;
146	} _sigev_thread;
147	} _sigev_un;
148	} compat_sigevent_t;
149
34f192c6 IM	150	struct compat_robust_list {
	151	compat_uptr_t next;
	152	};
	153
	154	struct compat_robust_list_head {
	155	struct compat_robust_list list;
	156	compat_long_t futex_offset;
	157	compat_uptr_t list_op_pending;
	158	};
	159
	160	extern void compat_exit_robust_list(struct task_struct *curr);
	161
	162	asmlinkage long
	163	compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
	164	compat_size_t len);
	165	asmlinkage long
ba46df98	166	compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
34f192c6	167	compat_size_t __user *len_ptr);
1da177e4 LT	168
	169	long compat_sys_semctl(int first, int second, int third, void __user *uptr);
	170	long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
	171	long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
	172	int version, void __user *uptr);
	173	long compat_sys_msgctl(int first, int second, void __user *uptr);
	174	long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
	175	void __user *uptr);
	176	long compat_sys_shmctl(int first, int second, void __user *uptr);
	177	long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
	178	unsigned nsems, const struct compat_timespec __user *timeout);
	179	asmlinkage long compat_sys_keyctl(u32 option,
	180	u32 arg2, u32 arg3, u32 arg4, u32 arg5);
	181
	182	asmlinkage ssize_t compat_sys_readv(unsigned long fd,
	183	const struct compat_iovec __user *vec, unsigned long vlen);
	184	asmlinkage ssize_t compat_sys_writev(unsigned long fd,
	185	const struct compat_iovec __user *vec, unsigned long vlen);
	186
	187	int compat_do_execve(char * filename, compat_uptr_t __user *argv,
	188	compat_uptr_t __user envp, struct pt_regs regs);
	189
	190	asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
	191	compat_ulong_t __user outp, compat_ulong_t __user exp,
	192	struct compat_timeval __user *tvp);
	193
	194	#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
	195
	196	#define BITS_TO_COMPAT_LONGS(bits) \
	197	(((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
	198
5fa3839a	199	long compat_get_bitmap(unsigned long mask, const compat_ulong_t __user umask,
1da177e4 LT	200	unsigned long bitmap_size);
	201	long compat_put_bitmap(compat_ulong_t __user umask, unsigned long mask,
	202	unsigned long bitmap_size);
	203	int copy_siginfo_from_user32(siginfo_t to, struct compat_siginfo __user from);
	204	int copy_siginfo_to_user32(struct compat_siginfo __user to, siginfo_t from);
	205	int get_compat_sigevent(struct sigevent *event,
	206	const struct compat_sigevent __user *u_event);
	207
643a6545 AM	208	static inline int compat_timeval_compare(struct compat_timeval *lhs,
	209	struct compat_timeval *rhs)
	210	{
	211	if (lhs->tv_sec < rhs->tv_sec)
	212	return -1;
	213	if (lhs->tv_sec > rhs->tv_sec)
	214	return 1;
	215	return lhs->tv_usec - rhs->tv_usec;
	216	}
	217
	218	static inline int compat_timespec_compare(struct compat_timespec *lhs,
	219	struct compat_timespec *rhs)
	220	{
	221	if (lhs->tv_sec < rhs->tv_sec)
	222	return -1;
	223	if (lhs->tv_sec > rhs->tv_sec)
	224	return 1;
	225	return lhs->tv_nsec - rhs->tv_nsec;
	226	}
	227
3158e941 SR	228	asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
3158e941 SR	229
bebfa101	230	extern int compat_printk(const char *fmt, ...);
0235497f	231	extern void sigset_from_compat(sigset_t set, compat_sigset_t compat);
bebfa101	232
3fd59397 SR	233	asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
	234	compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
	235	const compat_ulong_t __user *new_nodes);
	236
f6dfb4fd DL	237	/*
	238	* epoll (fs/eventpoll.c) compat bits follow ...
	239	*/
	240	#ifndef CONFIG_HAS_COMPAT_EPOLL_EVENT
	241	struct epoll_event;
	242	#define compat_epoll_event epoll_event
	243	#else
	244	asmlinkage long compat_sys_epoll_ctl(int epfd, int op, int fd,
	245	struct compat_epoll_event __user *event);
	246	asmlinkage long compat_sys_epoll_wait(int epfd,
	247	struct compat_epoll_event __user *events,
	248	int maxevents, int timeout);
	249	#endif
	250	asmlinkage long compat_sys_epoll_pwait(int epfd,
	251	struct compat_epoll_event __user *events,
	252	int maxevents, int timeout,
	253	const compat_sigset_t __user *sigmask,
	254	compat_size_t sigsetsize);
	255
1da177e4 LT	256	#endif /* CONFIG_COMPAT */
1da177e4 LT	257	#endif /* _LINUX_COMPAT_H */