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 21 struct rusage; 22 23 struct compat_itimerspec { 24 struct compat_timespec it_interval; 25 struct compat_timespec it_value; 26 }; 27 28 struct compat_utimbuf { 29 compat_time_t actime; 30 compat_time_t modtime; 31 }; 32 33 struct compat_itimerval { 34 struct compat_timeval it_interval; 35 struct compat_timeval it_value; 36 }; 37 38 struct compat_tms { 39 compat_clock_t tms_utime; 40 compat_clock_t tms_stime; 41 compat_clock_t tms_cutime; 42 compat_clock_t tms_cstime; 43 }; 44 45 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) 46 47 typedef struct { 48 compat_sigset_word sig[_COMPAT_NSIG_WORDS]; 49 } compat_sigset_t; 50 51 extern int cp_compat_stat(struct kstat *, struct compat_stat __user *); 52 extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *); 53 extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *); 54 55 struct compat_iovec { 56 compat_uptr_t iov_base; 57 compat_size_t iov_len; 58 }; 59 60 struct compat_rlimit { 61 compat_ulong_t rlim_cur; 62 compat_ulong_t rlim_max; 63 }; 64 65 struct compat_rusage { 66 struct compat_timeval ru_utime; 67 struct compat_timeval ru_stime; 68 compat_long_t ru_maxrss; 69 compat_long_t ru_ixrss; 70 compat_long_t ru_idrss; 71 compat_long_t ru_isrss; 72 compat_long_t ru_minflt; 73 compat_long_t ru_majflt; 74 compat_long_t ru_nswap; 75 compat_long_t ru_inblock; 76 compat_long_t ru_oublock; 77 compat_long_t ru_msgsnd; 78 compat_long_t ru_msgrcv; 79 compat_long_t ru_nsignals; 80 compat_long_t ru_nvcsw; 81 compat_long_t ru_nivcsw; 82 }; 83 84 extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *); 85 86 struct compat_siginfo; 87 88 extern asmlinkage long compat_sys_waitid(int, compat_pid_t, 89 struct compat_siginfo __user *, int, 90 struct compat_rusage __user *); 91 92 struct compat_dirent { 93 u32 d_ino; 94 compat_off_t d_off; 95 u16 d_reclen; 96 char d_name[256]; 97 }; 98 99 typedef union compat_sigval { 100 compat_int_t sival_int; 101 compat_uptr_t sival_ptr; 102 } compat_sigval_t; 103 104 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3) 105 106 typedef struct compat_sigevent { 107 compat_sigval_t sigev_value; 108 compat_int_t sigev_signo; 109 compat_int_t sigev_notify; 110 union { 111 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE]; 112 compat_int_t _tid; 113 114 struct { 115 compat_uptr_t _function; 116 compat_uptr_t _attribute; 117 } _sigev_thread; 118 } _sigev_un; 119 } compat_sigevent_t; 120 121 122 long compat_sys_semctl(int first, int second, int third, void __user *uptr); 123 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr); 124 long compat_sys_msgrcv(int first, int second, int msgtyp, int third, 125 int version, void __user *uptr); 126 long compat_sys_msgctl(int first, int second, void __user *uptr); 127 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, 128 void __user *uptr); 129 long compat_sys_shmctl(int first, int second, void __user *uptr); 130 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, 131 unsigned nsems, const struct compat_timespec __user *timeout); 132 asmlinkage long compat_sys_keyctl(u32 option, 133 u32 arg2, u32 arg3, u32 arg4, u32 arg5); 134 135 asmlinkage ssize_t compat_sys_readv(unsigned long fd, 136 const struct compat_iovec __user *vec, unsigned long vlen); 137 asmlinkage ssize_t compat_sys_writev(unsigned long fd, 138 const struct compat_iovec __user *vec, unsigned long vlen); 139 140 int compat_do_execve(char * filename, compat_uptr_t __user *argv, 141 compat_uptr_t __user *envp, struct pt_regs * regs); 142 143 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp, 144 compat_ulong_t __user *outp, compat_ulong_t __user *exp, 145 struct compat_timeval __user *tvp); 146 147 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) 148 149 #define BITS_TO_COMPAT_LONGS(bits) \ 150 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG) 151 152 long compat_get_bitmap(unsigned long *mask, compat_ulong_t __user *umask, 153 unsigned long bitmap_size); 154 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, 155 unsigned long bitmap_size); 156 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); 157 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from); 158 int get_compat_sigevent(struct sigevent *event, 159 const struct compat_sigevent __user *u_event); 160 161 #endif /* CONFIG_COMPAT */ 162 #endif /* _LINUX_COMPAT_H */ 163