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![Christoph Hellwig](/assets/img/avatar_default.png)
Due to a different size of ino_t ustat needs a compat handler, but currently only x86 and mips provide one. Add a generic compat_sys_ustat and switch all architectures over to it. Instead of doing various user copy hacks compat_sys_ustat just reimplements sys_ustat as it's trivial. This was suggested by Arnd Bergmann. Found by Eric Sandeen when running xfstests/017 on ppc64, which causes stack smashing warnings on RHEL/Fedora due to the too large amount of data writen by the syscall. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
99 lines
3.7 KiB
C
99 lines
3.7 KiB
C
/*
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* sys_ia32.h - Linux ia32 syscall interfaces
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*
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* Copyright (c) 2008 Jaswinder Singh Rajput
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*
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* This file is released under the GPLv2.
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* See the file COPYING for more details.
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*/
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#ifndef _ASM_X86_SYS_IA32_H
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#define _ASM_X86_SYS_IA32_H
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#include <linux/compiler.h>
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#include <linux/linkage.h>
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#include <linux/types.h>
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#include <linux/signal.h>
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#include <asm/compat.h>
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#include <asm/ia32.h>
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/* ia32/sys_ia32.c */
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asmlinkage long sys32_truncate64(char __user *, unsigned long, unsigned long);
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asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
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asmlinkage long sys32_stat64(char __user *, struct stat64 __user *);
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asmlinkage long sys32_lstat64(char __user *, struct stat64 __user *);
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asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
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asmlinkage long sys32_fstatat(unsigned int, char __user *,
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struct stat64 __user *, int);
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struct mmap_arg_struct;
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asmlinkage long sys32_mmap(struct mmap_arg_struct __user *);
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asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long);
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asmlinkage long sys32_pipe(int __user *);
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struct sigaction32;
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struct old_sigaction32;
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asmlinkage long sys32_rt_sigaction(int, struct sigaction32 __user *,
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struct sigaction32 __user *, unsigned int);
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asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *,
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struct old_sigaction32 __user *);
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asmlinkage long sys32_rt_sigprocmask(int, compat_sigset_t __user *,
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compat_sigset_t __user *, unsigned int);
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asmlinkage long sys32_alarm(unsigned int);
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struct sel_arg_struct;
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asmlinkage long sys32_old_select(struct sel_arg_struct __user *);
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asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int);
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asmlinkage long sys32_sysfs(int, u32, u32);
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asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
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struct compat_timespec __user *);
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asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *, compat_size_t);
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asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
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#ifdef CONFIG_SYSCTL_SYSCALL
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struct sysctl_ia32;
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asmlinkage long sys32_sysctl(struct sysctl_ia32 __user *);
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#endif
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asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
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asmlinkage long sys32_pwrite(unsigned int, char __user *, u32, u32, u32);
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asmlinkage long sys32_personality(unsigned long);
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asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
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asmlinkage long sys32_mmap2(unsigned long, unsigned long, unsigned long,
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unsigned long, unsigned long, unsigned long);
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struct oldold_utsname;
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struct old_utsname;
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asmlinkage long sys32_olduname(struct oldold_utsname __user *);
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long sys32_uname(struct old_utsname __user *);
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asmlinkage long sys32_execve(char __user *, compat_uptr_t __user *,
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compat_uptr_t __user *, struct pt_regs *);
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asmlinkage long sys32_clone(unsigned int, unsigned int, struct pt_regs *);
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long sys32_lseek(unsigned int, int, unsigned int);
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long sys32_kill(int, int);
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long sys32_fadvise64_64(int, __u32, __u32, __u32, __u32, int);
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long sys32_vm86_warning(void);
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long sys32_lookup_dcookie(u32, u32, char __user *, size_t);
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asmlinkage ssize_t sys32_readahead(int, unsigned, unsigned, size_t);
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asmlinkage long sys32_sync_file_range(int, unsigned, unsigned,
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unsigned, unsigned, int);
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asmlinkage long sys32_fadvise64(int, unsigned, unsigned, size_t, int);
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asmlinkage long sys32_fallocate(int, int, unsigned,
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unsigned, unsigned, unsigned);
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/* ia32/ia32_signal.c */
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asmlinkage long sys32_sigsuspend(int, int, old_sigset_t);
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asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *,
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stack_ia32_t __user *, struct pt_regs *);
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asmlinkage long sys32_sigreturn(struct pt_regs *);
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asmlinkage long sys32_rt_sigreturn(struct pt_regs *);
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/* ia32/ipc32.c */
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asmlinkage long sys32_ipc(u32, int, int, int, compat_uptr_t, u32);
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#endif /* _ASM_X86_SYS_IA32_H */
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