hooks.hpp

/*
  Copyright 2018-2020, Barcelona Supercomputing Center (BSC), Spain
  Copyright 2015-2020, Johannes Gutenberg Universitaet Mainz, Germany

  This software was partially supported by the
  EC H2020 funded project NEXTGenIO (Project ID: 671951, www.nextgenio.eu).

  This software was partially supported by the
  ADA-FS project under the SPPEXA project funded by the DFG.

  SPDX-License-Identifier: MIT
*/

#ifndef GEKKOFS_HOOKS_HPP
#define GEKKOFS_HOOKS_HPP

#include <sys/types.h>
#include <fcntl.h>

struct statfs;
struct linux_dirent;
struct linux_dirent64;

namespace gkfs {
namespace hook {

int hook_openat(int dirfd, const char* cpath, int flags, mode_t mode);

int hook_close(int fd);

int hook_stat(const char* path, struct stat* buf);

#ifdef STATX_TYPE
int hook_statx(int dirfd, const char* path, int flags, unsigned int mask,struct statx* buf);
#endif

int hook_lstat(const char* path, struct stat* buf);

int hook_fstat(unsigned int fd, struct stat* buf);

int hook_fstatat(int dirfd, const char* cpath, struct stat* buf, int flags);

int hook_read(unsigned int fd, void* buf, size_t count);

int hook_pread(unsigned int fd, char* buf, size_t count, loff_t pos);

int hook_readv(unsigned long fd, const struct iovec * iov, unsigned long iovcnt);

int hook_preadv(unsigned long fd, const struct iovec * iov, unsigned long iovcnt,
                 unsigned long pos_l, unsigned long pos_h);

int hook_write(unsigned int fd, const char* buf, size_t count);

int hook_pwrite(unsigned int fd, const char* buf, size_t count, loff_t pos);

int hook_writev(unsigned long fd, const struct iovec* iov, unsigned long iovcnt);

int hook_pwritev(unsigned long fd, const struct iovec* iov, unsigned long iovcnt,
                 unsigned long pos_l, unsigned long pos_h);

int hook_unlinkat(int dirfd, const char* cpath, int flags);

int hook_symlinkat(const char* oldname, int newdfd, const char* newname);

int hook_access(const char* path, int mask);

int hook_faccessat(int dirfd, const char* cpath, int mode);

off_t hook_lseek(unsigned int fd, off_t offset, unsigned int whence);

int hook_truncate(const char* path, long length);

int hook_ftruncate(unsigned int fd, unsigned long length);

int hook_dup(unsigned int fd);

int hook_dup2(unsigned int oldfd, unsigned int newfd);

int hook_dup3(unsigned int oldfd, unsigned int newfd, int flags);

int hook_getdents(unsigned int fd, struct linux_dirent* dirp, unsigned int count);

int hook_getdents64(unsigned int fd, struct linux_dirent64* dirp, unsigned int count);

int hook_mkdirat(int dirfd, const char* cpath, mode_t mode);

int hook_fchmodat(int dirfd, const char* path, mode_t mode);

int hook_fchmod(unsigned int dirfd, mode_t mode);

int hook_chdir(const char* path);

int hook_fchdir(unsigned int fd);

int hook_getcwd(char* buf, unsigned long size);

int hook_readlinkat(int dirfd, const char* cpath, char* buf, int bufsiz);

int hook_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);

int hook_renameat(int olddfd, const char* oldname, int newdfd, const char* newname,
                  unsigned int flags);

int hook_statfs(const char* path, struct statfs* buf);

int hook_fstatfs(unsigned int fd, struct statfs* buf);

} // namespace hook
} // namespace gkfs

#endif