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//usr/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/types.h> #ifdef CONFIG_COMPAT #include <linux/stat.h> #include <linux/param.h> /* for HZ */ #include <linux/sem.h> #include <linux/socket.h> #include <linux/if.h> #include <linux/fs.h> #include <linux/aio_abi.h> /* for aio_context_t */ #ifndef COMPAT_USE_64BIT_TIME #define COMPAT_USE_64BIT_TIME 0 #endif #ifndef __SC_DELOUSE #define __SC_DELOUSE(t,v) ((t)(unsigned long)(v)) #endif #define COMPAT_SYSCALL_DEFINE1(name, ...) \ COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINE2(name, ...) \ COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINE3(name, ...) \ COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINE4(name, ...) \ COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINE5(name, ...) \ COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINE6(name, ...) \ COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ static __inline__ long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\ { \ return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \ } \ SYSCALL_ALIAS(compat_sys##name, compat_SyS##name); \ static __inline__ long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #ifndef compat_user_stack_pointer #define compat_user_stack_pointer() current_user_stack_pointer() #endif #ifndef compat_sigaltstack /* we'll need that for MIPS */ typedef struct compat_sigaltstack { compat_uptr_t ss_sp; int ss_flags; compat_size_t ss_size; } compat_stack_t; #endif #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 compat_sel_arg_struct; 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; }; struct compat_timex { compat_uint_t modes; compat_long_t offset; compat_long_t freq; compat_long_t maxerror; compat_long_t esterror; compat_int_t status; compat_long_t constant; compat_long_t precision; compat_long_t tolerance; struct compat_timeval time; compat_long_t tick; compat_long_t ppsfreq; compat_long_t jitter; compat_int_t shift; compat_long_t stabil; compat_long_t jitcnt; compat_long_t calcnt; compat_long_t errcnt; compat_long_t stbcnt; compat_int_t tai; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; }; #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) typedef struct { compat_sigset_word sig[_COMPAT_NSIG_WORDS]; } compat_sigset_t; struct compat_sigaction { #ifndef __ARCH_HAS_IRIX_SIGACTION compat_uptr_t sa_handler; compat_ulong_t sa_flags; #else compat_uint_t sa_flags; compat_uptr_t sa_handler; #endif #ifdef __ARCH_HAS_SA_RESTORER compat_uptr_t sa_restorer; #endif compat_sigset_t sa_mask __attribute__((packed)); }; 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; }; struct compat_siginfo; struct compat_dirent { u32 d_ino; compat_off_t d_off; u16 d_reclen; char d_name[256]; }; struct compat_ustat { compat_daddr_t f_tfree; compat_ino_t f_tinode; char f_fname[6]; char f_fpack[6]; }; #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; struct compat_ifmap { compat_ulong_t mem_start; compat_ulong_t mem_end; unsigned short base_addr; unsigned char irq; unsigned char dma; unsigned char port; }; struct compat_if_settings { unsigned int type; /* Type of physical device or protocol */ unsigned int size; /* Size of the data allocated by the caller */ compat_uptr_t ifs_ifsu; /* union of pointers */ }; struct compat_ifreq { union { char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ } ifr_ifrn; union { struct sockaddr ifru_addr; struct sockaddr ifru_dstaddr; struct sockaddr ifru_broadaddr; struct sockaddr ifru_netmask; struct sockaddr ifru_hwaddr; short ifru_flags; compat_int_t ifru_ivalue; compat_int_t ifru_mtu; struct compat_ifmap ifru_map; char ifru_slave[IFNAMSIZ]; /* Just fits the size */ char ifru_newname[IFNAMSIZ]; compat_caddr_t ifru_data; struct compat_if_settings ifru_settings; } ifr_ifru; }; struct compat_ifconf { compat_int_t ifc_len; /* size of buffer */ compat_caddr_t ifcbuf; }; struct compat_robust_list { compat_uptr_t next; }; struct compat_robust_list_head { struct compat_robust_list list; compat_long_t futex_offset; compat_uptr_t list_op_pending; }; #ifdef CONFIG_COMPAT_OLD_SIGACTION struct compat_old_sigaction { compat_uptr_t sa_handler; compat_old_sigset_t sa_mask; compat_ulong_t sa_flags; compat_uptr_t sa_restorer; }; #endif struct compat_statfs; struct compat_statfs64; struct compat_old_linux_dirent; struct compat_linux_dirent; struct linux_dirent64; struct compat_msghdr; struct compat_mmsghdr; struct compat_sysinfo; struct compat_sysctl_args; struct compat_kexec_segment; struct compat_mq_attr; struct compat_msgbuf; asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, compat_off_t *offset, compat_size_t count); asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t *offset, compat_size_t count); asmlinkage long compat_sys_sigaltstack(const compat_stack_t *uss_ptr, compat_stack_t *uoss_ptr); int compat_restore_altstack(const compat_stack_t *uss); int __compat_save_altstack(compat_stack_t *, unsigned long); #define compat_save_altstack_ex(uss, sp) do { \ compat_stack_t *__uss = uss; \ struct task_struct *t = current; \ put_user_ex(ptr_to_compat((void *)t->sas_ss_sp), &__uss->ss_sp); \ put_user_ex(sas_ss_flags(sp), &__uss->ss_flags); \ put_user_ex(t->sas_ss_size, &__uss->ss_size); \ } while (0); asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec *interval); asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32, int, const char *); /* * For most but not all architectures, "am I in a compat syscall?" and * "am I a compat task?" are the same question. For architectures on which * they aren't the same question, arch code can override in_compat_syscall. */ #ifndef in_compat_syscall static __inline__ bool in_compat_syscall(void) { return is_compat_task(); } #endif #ifdef CONFIG_QUOTA_COMPAT #define QC_QUOTAON 0x0100 /* enable quotas */ #define QC_QUOTAOFF 0x0200 /* disable quotas */ /* GETQUOTA, SETQUOTA and SETUSE which were at 0x0300-0x0500 has now other parameteres */ #define QC_SYNC 0x0600 /* sync disk copy of a filesystems quotas */ #define QC_SETQLIM 0x0700 /* set limits */ /* GETSTATS at 0x0800 is now longer... */ #define QC_GETINFO 0x0900 /* get info about quotas - graces, flags... */ #define QC_SETINFO 0x0A00 /* set info about quotas */ #define QC_SETGRACE 0x0B00 /* set inode and block grace */ #define QC_SETFLAGS 0x0C00 /* set flags for quota */ #define QC_GETQUOTA 0x0D00 /* get limits and usage */ #define QC_SETQUOTA 0x0E00 /* set limits and usage */ #define QC_SETUSE 0x0F00 /* set usage */ /* 0x1000 used by old RSQUASH */ #define QC_GETSTATS 0x1100 /* get collected stats */ struct compat_dqblk { unsigned int dqb_ihardlimit; unsigned int dqb_isoftlimit; unsigned int dqb_curinodes; unsigned int dqb_bhardlimit; unsigned int dqb_bsoftlimit; qsize_t dqb_curspace; __kernel_time_t dqb_btime; __kernel_time_t dqb_itime; }; #ifdef CONFIG_COMPAT struct compat_compat_dqblk { compat_uint_t dqb_ihardlimit; compat_uint_t dqb_isoftlimit; compat_uint_t dqb_curinodes; compat_uint_t dqb_bhardlimit; compat_uint_t dqb_bsoftlimit; compat_u64 dqb_curspace; compat_time_t dqb_btime; compat_time_t dqb_itime; }; #endif struct compat_dqinfo { unsigned int dqi_bgrace; unsigned int dqi_igrace; unsigned int dqi_flags; unsigned int dqi_blocks; unsigned int dqi_free_blk; unsigned int dqi_free_entry; }; struct compat_dqstats { __u32 lookups; __u32 drops; __u32 reads; __u32 writes; __u32 cache_hits; __u32 allocated_dquots; __u32 free_dquots; __u32 syncs; __u32 version; }; #endif /* CONFIG_QUOTA_COMPAT */ #else #define is_compat_task() (0) static __inline__ bool in_compat_syscall(void) { return false; } #endif /* CONFIG_COMPAT */ #endif /* _LINUX_COMPAT_H */