[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.
 */
#include <linux/config.h>

#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>

#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;
};

#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;


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, 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;
}

#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	*/
	7	#include <linux/config.h>
	8
	9	#ifdef CONFIG_COMPAT
	10
	11	#include <linux/stat.h>
	12	#include <linux/param.h> /* for HZ */
	13	#include <linux/sem.h>
	14
	15	#include <asm/compat.h>
	16	#include <asm/siginfo.h>
	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
	48	#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
	49
	50	typedef struct {
	51	compat_sigset_word sig[_COMPAT_NSIG_WORDS];
	52	} compat_sigset_t;
	53
	54	extern int cp_compat_stat(struct kstat , struct compat_stat __user );
	55	extern int get_compat_timespec(struct timespec , const struct compat_timespec __user );
	56	extern int put_compat_timespec(const struct timespec , struct compat_timespec __user );
	57
	58	struct compat_iovec {
	59	compat_uptr_t iov_base;
	60	compat_size_t iov_len;
	61	};
	62
	63	struct compat_rlimit {
	64	compat_ulong_t rlim_cur;
	65	compat_ulong_t rlim_max;
	66	};
	67
	68	struct compat_rusage {
	69	struct compat_timeval ru_utime;
	70	struct compat_timeval ru_stime;
	71	compat_long_t ru_maxrss;
	72	compat_long_t ru_ixrss;
	73	compat_long_t ru_idrss;
	74	compat_long_t ru_isrss;
	75	compat_long_t ru_minflt;
	76	compat_long_t ru_majflt;
	77	compat_long_t ru_nswap;
	78	compat_long_t ru_inblock;
	79	compat_long_t ru_oublock;
	80	compat_long_t ru_msgsnd;
	81	compat_long_t ru_msgrcv;
	82	compat_long_t ru_nsignals;
	83	compat_long_t ru_nvcsw;
	84	compat_long_t ru_nivcsw;
	85	};
	86
	87	extern int put_compat_rusage(const struct rusage , struct compat_rusage __user );
88
89	struct compat_siginfo;
90
91	extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
92	struct compat_siginfo __user *, int,
93	struct compat_rusage __user *);
94
95	struct compat_dirent {
96	u32 d_ino;
97	compat_off_t d_off;
98	u16 d_reclen;
99	char d_name[256];
100	};
101
102	typedef union compat_sigval {
103	compat_int_t sival_int;
104	compat_uptr_t sival_ptr;
105	} compat_sigval_t;
106
107	#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
108
109	typedef struct compat_sigevent {
110	compat_sigval_t sigev_value;
111	compat_int_t sigev_signo;
112	compat_int_t sigev_notify;
113	union {
114	compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
115	compat_int_t _tid;
116
117	struct {
118	compat_uptr_t _function;
119	compat_uptr_t _attribute;
120	} _sigev_thread;
121	} _sigev_un;
122	} compat_sigevent_t;
123
124
125	long compat_sys_semctl(int first, int second, int third, void __user *uptr);
126	long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
127	long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
128	int version, void __user *uptr);
129	long compat_sys_msgctl(int first, int second, void __user *uptr);
130	long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
131	void __user *uptr);
132	long compat_sys_shmctl(int first, int second, void __user *uptr);
133	long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
134	unsigned nsems, const struct compat_timespec __user *timeout);
135	asmlinkage long compat_sys_keyctl(u32 option,
136	u32 arg2, u32 arg3, u32 arg4, u32 arg5);
137
138	asmlinkage ssize_t compat_sys_readv(unsigned long fd,
139	const struct compat_iovec __user *vec, unsigned long vlen);
140	asmlinkage ssize_t compat_sys_writev(unsigned long fd,
141	const struct compat_iovec __user *vec, unsigned long vlen);
142
143	int compat_do_execve(char * filename, compat_uptr_t __user *argv,
144	compat_uptr_t __user envp, struct pt_regs regs);
145
146	asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
147	compat_ulong_t __user outp, compat_ulong_t __user exp,
148	struct compat_timeval __user *tvp);
149
150	#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
151
152	#define BITS_TO_COMPAT_LONGS(bits) \
153	(((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
154
155	long compat_get_bitmap(unsigned long mask, compat_ulong_t __user umask,
156	unsigned long bitmap_size);
157	long compat_put_bitmap(compat_ulong_t __user umask, unsigned long mask,
158	unsigned long bitmap_size);
159	int copy_siginfo_from_user32(siginfo_t to, struct compat_siginfo __user from);
160	int copy_siginfo_to_user32(struct compat_siginfo __user to, siginfo_t from);
161	int get_compat_sigevent(struct sigevent *event,
162	const struct compat_sigevent __user *u_event);
163
643a6545 AM	164	static inline int compat_timeval_compare(struct compat_timeval *lhs,
	165	struct compat_timeval *rhs)
	166	{
	167	if (lhs->tv_sec < rhs->tv_sec)
	168	return -1;
	169	if (lhs->tv_sec > rhs->tv_sec)
	170	return 1;
	171	return lhs->tv_usec - rhs->tv_usec;
	172	}
	173
	174	static inline int compat_timespec_compare(struct compat_timespec *lhs,
	175	struct compat_timespec *rhs)
	176	{
	177	if (lhs->tv_sec < rhs->tv_sec)
	178	return -1;
	179	if (lhs->tv_sec > rhs->tv_sec)
	180	return 1;
	181	return lhs->tv_nsec - rhs->tv_nsec;
	182	}
	183
1da177e4 LT	184	#endif /* CONFIG_COMPAT */
1da177e4 LT	185	#endif /* _LINUX_COMPAT_H */