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 typedef __compat_uid32_t compat_uid_t; 22 typedef __compat_gid32_t compat_gid_t; 23 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); 163 164 #endif /* CONFIG_COMPAT */ 165 #endif /* _LINUX_COMPAT_H */ 166