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/*--------------------------------------------------------------------*/
/*--- Private syscalls header. priv_syswrap-generic.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2017 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PRIV_SYSWRAP_GENERIC_H
#define __PRIV_SYSWRAP_GENERIC_H
#include "pub_core_basics.h" // ThreadId
#include "pub_core_vki.h" // vki_msghdr
#include "priv_types_n_macros.h" // DECL_TEMPLATE
/* Guess the client stack from the segment in which sp is mapped.
Register the guessed stack using VG_(register_stack).
Setup tst client_stack_highest_byte and client_stack_szB.
If sp is not in a mapped segment, does nothing. */
extern void ML_(guess_and_register_stack) (Addr sp, ThreadState* tst);
// Return true if address range entirely contained within client
// address space.
extern
Bool ML_(valid_client_addr)(Addr start, SizeT size, ThreadId tid,
const HChar *syscallname);
/* Handy small function to help stop wrappers from segfaulting when
presented with bogus client addresses. Is not used for generating
user-visible errors. */
extern Bool ML_(safe_to_deref) ( const void *start, SizeT size );
// Returns True if the signal is OK for the client to use.
extern Bool ML_(client_signal_OK)(Int sigNo);
// Return true if we're allowed to use or create this fd.
extern
Bool ML_(fd_allowed)(Int fd, const HChar *syscallname, ThreadId tid,
Bool isNewFD);
extern void ML_(record_fd_close) (ThreadId tid, Int fd);
extern void ML_(record_fd_close_range) (ThreadId tid, Int fd);
extern void ML_(record_fd_open_named) (ThreadId tid, Int fd);
extern void ML_(record_fd_open_nameless) (ThreadId tid, Int fd);
extern void ML_(record_fd_open_with_given_name)(ThreadId tid, Int fd,
const HChar *pathname);
// Return true if a given file descriptor is already recorded.
extern Bool ML_(fd_recorded)(Int fd);
// Returns a pathname representing a recorded fd.
// Returned string must not be modified nor free'd.
extern const HChar *ML_(find_fd_recorded_by_fd)(Int fd);
// Used when killing threads -- we must not kill a thread if it's the thread
// that would do Valgrind's final cleanup and output.
extern
Bool ML_(do_sigkill)(Int pid, Int tgid);
/* When a client mmap or munmap has been successfully done, both the core
and the tool need to be notified of the new mapping. Hence this fn. */
extern void
ML_(notify_core_and_tool_of_mmap) ( Addr a, SizeT len, UInt prot,
UInt mm_flags, Int fd, Off64T offset );
extern void
ML_(notify_core_and_tool_of_munmap) ( Addr a, SizeT len );
extern void
ML_(notify_core_and_tool_of_mprotect) ( Addr a, SizeT len, Int prot );
extern void
ML_(pre_mem_read_sockaddr) ( ThreadId tid, const HChar *description,
struct vki_sockaddr *sa, UInt salen );
extern void
ML_(buf_and_len_pre_check) ( ThreadId tid, Addr buf_p, Addr buflen_p,
const HChar* buf_s, const HChar* buflen_s );
extern void
ML_(buf_and_len_post_check) ( ThreadId tid, SysRes res,
Addr buf_p, Addr buflen_p, const HChar* s );
/* PRE and POST for unknown ioctls based on ioctl request encoding */
extern
void ML_(PRE_unknown_ioctl)(ThreadId tid, UWord request, UWord arg);
extern
void ML_(POST_unknown_ioctl)(ThreadId tid, UInt res, UWord request, UWord arg);
extern
void ML_(pre_argv_envp)(Addr a, ThreadId tid, const HChar *s1, const HChar *s2);
extern Bool
ML_(handle_auxv_open)(SyscallStatus *status, const HChar *filename,
int flags);
extern Bool
ML_(handle_self_exe_open)(SyscallStatus *status, const HChar *filename,
int flags);
/* Helper function for generic mprotect and linux pkey_mprotect. */
extern void handle_sys_mprotect (ThreadId tid, SyscallStatus *status,
Addr *addr, SizeT *len, Int *prot);
/* Helper functions for preadv/preadv2. */
extern
void handle_pre_sys_preadv(ThreadId tid, SyscallStatus* status,
Int fd, Addr vector, Int count,
const char *str);
extern
void handle_post_sys_preadv(ThreadId tid, SyscallStatus* status, Addr vector, Int count);
/* Helper function for pwritev/pwritev2. */
extern
void handle_sys_pwritev(ThreadId tid, SyscallStatus* status,
Int fd, Addr vector, Int count,
const char *str);
typedef enum {
EXECVE,
EXECVEAT,
FEXECVE
} ExecveType;
extern
void handle_pre_sys_execve(ThreadId tid, SyscallStatus *status, Addr pathname,
Addr arg_2, Addr arg_3, ExecveType execveType,
Bool check_pathptr);
DECL_TEMPLATE(generic, sys_ni_syscall); // * P -- unimplemented
DECL_TEMPLATE(generic, sys_exit);
DECL_TEMPLATE(generic, sys_fork);
DECL_TEMPLATE(generic, sys_read);
DECL_TEMPLATE(generic, sys_write);
DECL_TEMPLATE(generic, sys_open);
DECL_TEMPLATE(generic, sys_close);
DECL_TEMPLATE(generic, sys_waitpid);
DECL_TEMPLATE(generic, sys_creat);
DECL_TEMPLATE(generic, sys_link);
DECL_TEMPLATE(generic, sys_unlink);
DECL_TEMPLATE(generic, sys_execve); // (*??) P
DECL_TEMPLATE(generic, sys_chdir);
DECL_TEMPLATE(generic, sys_time);
DECL_TEMPLATE(generic, sys_mknod);
DECL_TEMPLATE(generic, sys_chmod);
DECL_TEMPLATE(generic, sys_getpid);
DECL_TEMPLATE(generic, sys_alarm);
DECL_TEMPLATE(generic, sys_pause);
DECL_TEMPLATE(generic, sys_access);
DECL_TEMPLATE(generic, sys_kill);
DECL_TEMPLATE(generic, sys_rename);
DECL_TEMPLATE(generic, sys_mkdir);
DECL_TEMPLATE(generic, sys_rmdir);
DECL_TEMPLATE(generic, sys_dup);
DECL_TEMPLATE(generic, sys_times);
DECL_TEMPLATE(generic, sys_setpgid);
DECL_TEMPLATE(generic, sys_umask);
DECL_TEMPLATE(generic, sys_dup2);
DECL_TEMPLATE(generic, sys_getppid);
DECL_TEMPLATE(generic, sys_getpgrp);
DECL_TEMPLATE(generic, sys_setsid);
DECL_TEMPLATE(generic, sys_munmap);
DECL_TEMPLATE(generic, sys_truncate);
DECL_TEMPLATE(generic, sys_ftruncate);
DECL_TEMPLATE(generic, sys_fchmod);
DECL_TEMPLATE(generic, sys_msync);
DECL_TEMPLATE(generic, sys_readv);
DECL_TEMPLATE(generic, sys_writev);
DECL_TEMPLATE(generic, sys_getsid);
DECL_TEMPLATE(generic, sys_fdatasync);
DECL_TEMPLATE(generic, sys_mlock);
DECL_TEMPLATE(generic, sys_munlock);
DECL_TEMPLATE(generic, sys_mlockall);
DECL_TEMPLATE(generic, sys_nanosleep);
DECL_TEMPLATE(generic, sys_mremap); // POSIX, but Linux arg order may be odd
DECL_TEMPLATE(generic, sys_getuid);
DECL_TEMPLATE(generic, sys_getgid);
DECL_TEMPLATE(generic, sys_geteuid);
DECL_TEMPLATE(generic, sys_getegid);
DECL_TEMPLATE(generic, sys_getpgid);
DECL_TEMPLATE(generic, sys_fsync);
DECL_TEMPLATE(generic, sys_wait4);
DECL_TEMPLATE(generic, sys_mprotect);
DECL_TEMPLATE(generic, sys_getcwd);
DECL_TEMPLATE(generic, sys_symlink);
DECL_TEMPLATE(generic, sys_getgroups);
DECL_TEMPLATE(generic, sys_setgroups); // SVr4, SVID, X/OPEN, 4.3BSD
DECL_TEMPLATE(generic, sys_chown);
DECL_TEMPLATE(generic, sys_setuid);
DECL_TEMPLATE(generic, sys_gettimeofday);
DECL_TEMPLATE(generic, sys_madvise);
DECL_TEMPLATE(generic, sys_sethostname);
// These ones aren't POSIX, but are in some standard and look reasonably
// generic, and are the same for all architectures under Linux.
DECL_TEMPLATE(generic, sys_nice); // SVr4, SVID EXT, AT&T, X/OPEN, BSD 4.3
DECL_TEMPLATE(generic, sys_sync); // SVr4, SVID, X/OPEN, BSD 4.3
DECL_TEMPLATE(generic, sys_brk); // 4.3BSD
DECL_TEMPLATE(generic, sys_acct); // SVR4, non-POSIX
DECL_TEMPLATE(generic, sys_chroot); // SVr4, SVID, 4.4BSD, X/OPEN
DECL_TEMPLATE(generic, sys_readlink); // X/OPEN, 4.4BSD
DECL_TEMPLATE(generic, sys_fchdir); // SVr4, SVID, POSIX, X/OPEN, 4.4BSD
DECL_TEMPLATE(generic, sys_getdents); // SVr4,SVID
DECL_TEMPLATE(generic, sys_select); // 4.4BSD
DECL_TEMPLATE(generic, sys_flock); // 4.4BSD
DECL_TEMPLATE(generic, sys_poll); // XPG4-UNIX
DECL_TEMPLATE(generic, sys_getrusage); // SVr4, 4.3BSD
DECL_TEMPLATE(generic, sys_stime); // SVr4, SVID, X/OPEN
DECL_TEMPLATE(generic, sys_settimeofday); // SVr4, 4.3BSD (non-POSIX)
DECL_TEMPLATE(generic, sys_getpriority); // SVr4, 4.4BSD
DECL_TEMPLATE(generic, sys_setpriority); // SVr4, 4.4BSD
DECL_TEMPLATE(generic, sys_setitimer); // SVr4, 4.4BSD
DECL_TEMPLATE(generic, sys_getitimer); // SVr4, 4.4BSD
DECL_TEMPLATE(generic, sys_setreuid); // 4.3BSD
DECL_TEMPLATE(generic, sys_setregid); // 4.3BSD
DECL_TEMPLATE(generic, sys_fchown); // SVr4,4.3BSD
DECL_TEMPLATE(generic, sys_setgid); // SVr4,SVID
DECL_TEMPLATE(generic, sys_utimes); // 4.3BSD
// May not be generic for every architecture under Linux.
DECL_TEMPLATE(generic, sys_sigaction); // (x86) P
// Funny names, not sure...
DECL_TEMPLATE(generic, sys_newstat); // * P
DECL_TEMPLATE(generic, sys_newlstat); // *
DECL_TEMPLATE(generic, sys_newfstat); // * P (SVr4,BSD4.3)
// For the remainder, not really sure yet
DECL_TEMPLATE(generic, sys_ptrace); // (x86?) (almost-P)
DECL_TEMPLATE(generic, sys_setrlimit); // SVr4, 4.3BSD
DECL_TEMPLATE(generic, sys_old_getrlimit); // SVr4, 4.3BSD L?
DECL_TEMPLATE(generic, sys_statfs); // * L?
DECL_TEMPLATE(generic, sys_fstatfs); // * L?
DECL_TEMPLATE(generic, sys_iopl); // (x86/amd64) L
DECL_TEMPLATE(generic, sys_newuname); // * P
DECL_TEMPLATE(generic, sys_pread64); // * (Unix98?)
DECL_TEMPLATE(generic, sys_pwrite64); // * (Unix98?)
DECL_TEMPLATE(generic, sys_sigaltstack); // (x86) (XPG4-UNIX)
DECL_TEMPLATE(generic, sys_getpmsg); // (?) (?)
DECL_TEMPLATE(generic, sys_putpmsg); // (?) (?)
DECL_TEMPLATE(generic, sys_getrlimit); // * (?)
DECL_TEMPLATE(generic, sys_truncate64); // %% (P?)
DECL_TEMPLATE(generic, sys_ftruncate64); // %% (P?)
DECL_TEMPLATE(generic, sys_lchown); // * (L?)
DECL_TEMPLATE(generic, sys_mincore); // * L?
DECL_TEMPLATE(generic, sys_getdents64); // * (SVr4,SVID?)
DECL_TEMPLATE(generic, sys_statfs64); // * (?)
DECL_TEMPLATE(generic, sys_fstatfs64); // * (?)
DECL_TEMPLATE(generic, sys_mlock2); // * L
/* ---------------------------------------------------------------------
Wrappers for sockets and ipc-ery. These are split into standalone
procedures because some platforms hides them inside multiplexors
(sys_socketcall and sys_ipc).
------------------------------------------------------------------ */
#define TId ThreadId
#define UW UWord
#define SR SysRes
extern void ML_(generic_PRE_sys_socketpair) ( TId, UW, UW, UW, UW );
extern SysRes ML_(generic_POST_sys_socketpair) ( TId, SR, UW, UW, UW, UW );
extern SysRes ML_(generic_POST_sys_socket) ( TId, SR );
extern void ML_(generic_PRE_sys_bind) ( TId, UW, UW, UW );
extern void ML_(generic_PRE_sys_accept) ( TId, UW, UW, UW );
extern SysRes ML_(generic_POST_sys_accept) ( TId, SR, UW, UW, UW );
extern void ML_(generic_PRE_sys_sendto) ( TId, UW, UW, UW, UW, UW, UW );
extern void ML_(generic_PRE_sys_send) ( TId, UW, UW, UW );
extern void ML_(generic_PRE_sys_recvfrom) ( TId, UW, UW, UW, UW, UW, UW );
extern void ML_(generic_POST_sys_recvfrom) ( TId, SR, UW, UW, UW, UW, UW, UW );
extern void ML_(generic_PRE_sys_recv) ( TId, UW, UW, UW );
extern void ML_(generic_POST_sys_recv) ( TId, UW, UW, UW, UW );
extern void ML_(generic_PRE_sys_connect) ( TId, UW, UW, UW );
extern void ML_(generic_PRE_sys_setsockopt) ( TId, UW, UW, UW, UW, UW );
extern void ML_(generic_PRE_sys_getsockname) ( TId, UW, UW, UW );
extern void ML_(generic_POST_sys_getsockname) ( TId, SR, UW, UW, UW );
extern void ML_(generic_PRE_sys_getpeername) ( TId, UW, UW, UW );
extern void ML_(generic_POST_sys_getpeername) ( TId, SR, UW, UW, UW );
extern void ML_(generic_PRE_sys_sendmsg) ( TId, const HChar *,
struct vki_msghdr * );
extern void ML_(generic_PRE_sys_recvmsg) ( TId, const HChar *,
struct vki_msghdr * );
extern void ML_(generic_POST_sys_recvmsg) ( TId, const HChar *,
struct vki_msghdr *, UInt );
extern void ML_(generic_PRE_sys_semop) ( TId, UW, UW, UW );
extern void ML_(generic_PRE_sys_semtimedop) ( TId, UW, UW, UW, UW );
extern void ML_(generic_PRE_sys_semctl) ( TId, UW, UW, UW, UW );
extern void ML_(generic_POST_sys_semctl) ( TId, UW, UW, UW, UW, UW );
extern UWord ML_(generic_PRE_sys_shmat) ( TId, UW, UW, UW );
extern void ML_(generic_POST_sys_shmat) ( TId, UW, UW, UW, UW );
extern Bool ML_(generic_PRE_sys_shmdt) ( TId, UW );
extern void ML_(generic_POST_sys_shmdt) ( TId, UW, UW );
extern void ML_(generic_PRE_sys_shmctl) ( TId, UW, UW, UW );
extern void ML_(generic_POST_sys_shmctl) ( TId, UW, UW, UW, UW );
extern SysRes ML_(generic_PRE_sys_mmap) ( TId, UW, UW, UW, UW, UW, Off64T );
#define PRE_timeval_READ(zzname, zzarg) \
do { \
struct vki_timeval *zztv = (struct vki_timeval *)(zzarg); \
PRE_FIELD_READ(zzname, zztv->tv_sec); \
PRE_FIELD_READ(zzname, zztv->tv_usec); \
} while (0)
#define PRE_timeval_WRITE(zzname, zzarg) \
do { \
struct vki_timeval *zztv = (struct vki_timeval *)(zzarg); \
PRE_FIELD_WRITE(zzname, zztv->tv_sec); \
PRE_FIELD_WRITE(zzname, zztv->tv_usec); \
} while (0)
#define POST_timeval_WRITE(zzarg) \
do { \
struct vki_timeval *zztv = (struct vki_timeval *)(zzarg); \
POST_FIELD_WRITE(zztv->tv_sec); \
POST_FIELD_WRITE(zztv->tv_usec); \
} while (0)
#undef TId
#undef UW
#undef SR
/////////////////////////////////////////////////////////////////
#endif // __PRIV_SYSWRAP_GENERIC_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
|
