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