| 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 | #include <asm/signal.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 | 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 | |
| 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 | |
| 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 |
| 166 | compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, |
| 167 | compat_size_t __user *len_ptr); |
| 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 | asmlinkage long compat_sys_wait4(compat_pid_t pid, |
| 195 | compat_uint_t *stat_addr, int options, |
| 196 | struct compat_rusage *ru); |
| 197 | |
| 198 | #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) |
| 199 | |
| 200 | #define BITS_TO_COMPAT_LONGS(bits) \ |
| 201 | (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG) |
| 202 | |
| 203 | long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask, |
| 204 | unsigned long bitmap_size); |
| 205 | long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, |
| 206 | unsigned long bitmap_size); |
| 207 | int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); |
| 208 | int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from); |
| 209 | int get_compat_sigevent(struct sigevent *event, |
| 210 | const struct compat_sigevent __user *u_event); |
| 211 | |
| 212 | static inline int compat_timeval_compare(struct compat_timeval *lhs, |
| 213 | struct compat_timeval *rhs) |
| 214 | { |
| 215 | if (lhs->tv_sec < rhs->tv_sec) |
| 216 | return -1; |
| 217 | if (lhs->tv_sec > rhs->tv_sec) |
| 218 | return 1; |
| 219 | return lhs->tv_usec - rhs->tv_usec; |
| 220 | } |
| 221 | |
| 222 | static inline int compat_timespec_compare(struct compat_timespec *lhs, |
| 223 | struct compat_timespec *rhs) |
| 224 | { |
| 225 | if (lhs->tv_sec < rhs->tv_sec) |
| 226 | return -1; |
| 227 | if (lhs->tv_sec > rhs->tv_sec) |
| 228 | return 1; |
| 229 | return lhs->tv_nsec - rhs->tv_nsec; |
| 230 | } |
| 231 | |
| 232 | extern int get_compat_itimerspec(struct itimerspec *dst, |
| 233 | const struct compat_itimerspec __user *src); |
| 234 | extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, |
| 235 | const struct itimerspec *src); |
| 236 | |
| 237 | asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); |
| 238 | |
| 239 | extern int compat_printk(const char *fmt, ...); |
| 240 | extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat); |
| 241 | |
| 242 | asmlinkage long compat_sys_migrate_pages(compat_pid_t pid, |
| 243 | compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes, |
| 244 | const compat_ulong_t __user *new_nodes); |
| 245 | |
| 246 | extern int compat_ptrace_request(struct task_struct *child, |
| 247 | compat_long_t request, |
| 248 | compat_ulong_t addr, compat_ulong_t data); |
| 249 | |
| 250 | #ifdef __ARCH_WANT_COMPAT_SYS_PTRACE |
| 251 | extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request, |
| 252 | compat_ulong_t addr, compat_ulong_t data); |
| 253 | asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, |
| 254 | compat_long_t addr, compat_long_t data); |
| 255 | #endif /* __ARCH_WANT_COMPAT_SYS_PTRACE */ |
| 256 | |
| 257 | /* |
| 258 | * epoll (fs/eventpoll.c) compat bits follow ... |
| 259 | */ |
| 260 | struct epoll_event; |
| 261 | #define compat_epoll_event epoll_event |
| 262 | asmlinkage long compat_sys_epoll_pwait(int epfd, |
| 263 | struct compat_epoll_event __user *events, |
| 264 | int maxevents, int timeout, |
| 265 | const compat_sigset_t __user *sigmask, |
| 266 | compat_size_t sigsetsize); |
| 267 | |
| 268 | asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename, |
| 269 | struct compat_timespec __user *t, int flags); |
| 270 | |
| 271 | asmlinkage long compat_sys_signalfd(int ufd, |
| 272 | const compat_sigset_t __user *sigmask, |
| 273 | compat_size_t sigsetsize); |
| 274 | asmlinkage long compat_sys_timerfd_settime(int ufd, int flags, |
| 275 | const struct compat_itimerspec __user *utmr, |
| 276 | struct compat_itimerspec __user *otmr); |
| 277 | asmlinkage long compat_sys_timerfd_gettime(int ufd, |
| 278 | struct compat_itimerspec __user *otmr); |
| 279 | |
| 280 | #endif /* CONFIG_COMPAT */ |
| 281 | #endif /* _LINUX_COMPAT_H */ |