mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-15 02:09:19 +08:00
abbde48704
* autoload.cc (WSACloseEvent): Remove. (WSACreateEvent): Remove. * cygheap.cc (cygheap_init): Drop initializing shared_prefix. * cygheap.h (struct init_cygheap): Drop shared_prefix and shared_prefix_buf members. * fhandler_socket.cc (sock_shared_name): New static function. (search_wsa_event_slot): Convert name buffers to WCHAR. Call NtCreateMutant/NtOpenMutant to create mutexes in session local namespace. (fhandler_socket::init_events): Ditto. Fix debug output. (fhandler_socket::release_events): Close mutexes using NtClose. (fhandler_socket::dup): Ditto. * kernel32.cc: New file, implementing Win32 calls in a Cygwin-specific way. * mmap.cc (MapView): Make static. * ntdll.h: Fix status code sorting. (STATUS_OBJECT_NAME_EXISTS): Define. (SEMAPHORE_QUERY_STATE): Define. (CYG_SHARED_DIR_ACCESS): Define. (CYG_MUTANT_ACCESS): Define. (CYG_EVENT_ACCESS): Define. (CYG_SEMAPHORE_ACCESS): Define. (enum _PROCESSINFOCLASS): Define ProcessSessionInformation. (struct _PROCESS_SESSION_INFORMATION): Define. (NtCreateSemaphore): Declare. (NtOpenSemaphore): Declare. * flock.cc: Use CYG_xxx_ACCESS access masks where appropriate. * posix_ipc.cc (ipc_mutex_init): Use native functions to create mutex. Create in cygwin-shared subdir. (ipc_cond_init): Ditto for event. (ipc_mutex_close): Use NtClose. (ipc_cond_close): Ditto. (mq_open): Drop "cyg" prefix from mqh_uname. * shared.cc (CYG_SHARED_DIR_ACCESS): Drop definition here. (_cygwin_testing): Declare extern on file level. (get_shared_parent_dir): Change name of shared directory. Add name to api_fatal output. (get_session_parent_dir): New function. (shared_name): Simplify. (shared_info::initialize): Call get_session_parent_dir. * shared_info.h (get_session_parent_dir): Declare. * smallprint.cc (__small_vswprintf): Fix bug in multibyte string conversion. * thread.cc (semaphore::semaphore): Align semaphore name to object names in posix IPC functions. * include/cygwin/version.h (CYGWIN_VERSION_SHARED_DATA): Bump.
406 lines
11 KiB
C++
406 lines
11 KiB
C++
/* kernel32.cc: Win32 replacement functions.
|
|
|
|
Copyright 2008 Red Hat, Inc.
|
|
|
|
This file is part of Cygwin.
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
details. */
|
|
|
|
#include "winsup.h"
|
|
#include "shared_info.h"
|
|
#include "ntdll.h"
|
|
|
|
/* Implement CreateEvent/OpenEvent so that named objects are always created in
|
|
Cygwin shared object namespace. */
|
|
|
|
HANDLE WINAPI
|
|
CreateEventW (LPSECURITY_ATTRIBUTES lpEventAttributes, BOOL bManualReset,
|
|
BOOL bInitialState, LPCWSTR lpName)
|
|
{
|
|
HANDLE evt;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (lpEventAttributes && lpEventAttributes->bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_OPENIF | OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
lpEventAttributes
|
|
? lpEventAttributes->lpSecurityDescriptor : NULL);
|
|
status = NtCreateEvent (&evt, CYG_EVENT_ACCESS, &attr,
|
|
bManualReset ? NotificationEvent
|
|
: SynchronizationEvent,
|
|
bInitialState);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
SetLastError (status == STATUS_OBJECT_NAME_EXISTS
|
|
? ERROR_ALREADY_EXISTS : ERROR_SUCCESS);
|
|
return evt;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
CreateEventA (LPSECURITY_ATTRIBUTES lpEventAttributes, BOOL bManualReset,
|
|
BOOL bInitialState, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return CreateEventW (lpEventAttributes, bManualReset, bInitialState,
|
|
lpName ? name : NULL);
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenEventW (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpName)
|
|
{
|
|
HANDLE evt;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
NULL);
|
|
status = NtOpenEvent (&evt, dwDesiredAccess, &attr);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
return evt;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenEventA (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return OpenEventW (dwDesiredAccess, bInheritHandle, lpName ? name : NULL);
|
|
}
|
|
|
|
/* Implement CreateMutex/OpenMutex so that named objects are always created in
|
|
Cygwin shared object namespace. */
|
|
|
|
HANDLE WINAPI
|
|
CreateMutexW (LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner,
|
|
LPCWSTR lpName)
|
|
{
|
|
HANDLE mtx;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (lpMutexAttributes && lpMutexAttributes->bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_OPENIF | OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
lpMutexAttributes
|
|
? lpMutexAttributes->lpSecurityDescriptor : NULL);
|
|
status = NtCreateMutant (&mtx, CYG_EVENT_ACCESS, &attr, bInitialOwner);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
SetLastError (status == STATUS_OBJECT_NAME_EXISTS
|
|
? ERROR_ALREADY_EXISTS : ERROR_SUCCESS);
|
|
return mtx;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
CreateMutexA (LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner,
|
|
LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return CreateMutexW (lpMutexAttributes, bInitialOwner, lpName ? name : NULL);
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenMutexW (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpName)
|
|
{
|
|
HANDLE mtx;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
NULL);
|
|
status = NtOpenMutant (&mtx, dwDesiredAccess, &attr);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
return mtx;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenMutexA (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return OpenMutexW (dwDesiredAccess, bInheritHandle, lpName ? name : NULL);
|
|
}
|
|
|
|
/* Implement CreateSemaphore/OpenSemaphore so that named objects are always
|
|
created in Cygwin shared object namespace. */
|
|
|
|
HANDLE WINAPI
|
|
CreateSemaphoreW (LPSECURITY_ATTRIBUTES lpSemaphoreAttributes,
|
|
LONG lInitialCount, LONG lMaximumCount, LPCWSTR lpName)
|
|
{
|
|
HANDLE sem;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (lpSemaphoreAttributes && lpSemaphoreAttributes->bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_OPENIF | OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
lpSemaphoreAttributes
|
|
? lpSemaphoreAttributes->lpSecurityDescriptor
|
|
: NULL);
|
|
status = NtCreateSemaphore (&sem, CYG_EVENT_ACCESS, &attr,
|
|
lInitialCount, lMaximumCount);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
SetLastError (status == STATUS_OBJECT_NAME_EXISTS
|
|
? ERROR_ALREADY_EXISTS : ERROR_SUCCESS);
|
|
return sem;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
CreateSemaphoreA (LPSECURITY_ATTRIBUTES lpSemaphoreAttributes,
|
|
LONG lInitialCount, LONG lMaximumCount, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return CreateSemaphoreW (lpSemaphoreAttributes, lInitialCount, lMaximumCount,
|
|
lpName ? name : NULL);
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenSemaphoreW (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpName)
|
|
{
|
|
HANDLE sem;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
NULL);
|
|
status = NtOpenSemaphore (&sem, dwDesiredAccess, &attr);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
return sem;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenSemaphoreA (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return OpenSemaphoreW (dwDesiredAccess, bInheritHandle, lpName ? name : NULL);
|
|
}
|
|
|
|
/* Implement CreateFileMapping/OpenFileMapping so that named objects are always
|
|
created in Cygwin shared object namespace. */
|
|
|
|
HANDLE WINAPI
|
|
CreateFileMappingW (HANDLE hFile, LPSECURITY_ATTRIBUTES lpAttributes,
|
|
DWORD flProtect, DWORD dwMaximumSizeHigh,
|
|
DWORD dwMaximumSizeLow, LPCWSTR lpName)
|
|
{
|
|
HANDLE sect;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
ACCESS_MASK access = READ_CONTROL | SECTION_QUERY | SECTION_MAP_READ;
|
|
ULONG prot = flProtect & (PAGE_NOACCESS | PAGE_READONLY | PAGE_READWRITE
|
|
| PAGE_WRITECOPY | PAGE_EXECUTE
|
|
| PAGE_EXECUTE_READ | PAGE_EXECUTE_READWRITE
|
|
| PAGE_EXECUTE_WRITECOPY);
|
|
ULONG attribs = flProtect & (SEC_BASED | SEC_NO_CHANGE | SEC_IMAGE | SEC_VLM
|
|
| SEC_RESERVE | SEC_COMMIT | SEC_NOCACHE);
|
|
LARGE_INTEGER size = {{ LowPart : dwMaximumSizeLow,
|
|
HighPart : dwMaximumSizeHigh }};
|
|
PLARGE_INTEGER psize = size.QuadPart ? &size : NULL;
|
|
|
|
if (prot & (PAGE_READWRITE | PAGE_WRITECOPY
|
|
| PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY))
|
|
access |= SECTION_MAP_WRITE;
|
|
if (prot & (PAGE_EXECUTE | PAGE_EXECUTE_READ
|
|
| PAGE_EXECUTE_READWRITE | PAGE_EXECUTE_WRITECOPY))
|
|
access |= SECTION_MAP_EXECUTE;
|
|
if (lpAttributes && lpAttributes->bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_OPENIF | OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
lpAttributes
|
|
? lpAttributes->lpSecurityDescriptor
|
|
: NULL);
|
|
if (!attribs)
|
|
attribs = SEC_COMMIT;
|
|
if (hFile == INVALID_HANDLE_VALUE)
|
|
hFile = NULL;
|
|
status = NtCreateSection (§, access, &attr, psize, prot, attribs, hFile);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
small_printf ("status %p\n", status);
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
SetLastError (status == STATUS_OBJECT_NAME_EXISTS
|
|
? ERROR_ALREADY_EXISTS : ERROR_SUCCESS);
|
|
return sect;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
CreateFileMappingA (HANDLE hFile, LPSECURITY_ATTRIBUTES lpAttributes,
|
|
DWORD flProtect, DWORD dwMaximumSizeHigh,
|
|
DWORD dwMaximumSizeLow, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return CreateFileMappingW (hFile, lpAttributes, flProtect, dwMaximumSizeHigh,
|
|
dwMaximumSizeLow, lpName ? name : NULL);
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenFileMappingW (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCWSTR lpName)
|
|
{
|
|
HANDLE sect;
|
|
UNICODE_STRING uname;
|
|
OBJECT_ATTRIBUTES attr;
|
|
NTSTATUS status;
|
|
ULONG flags = 0;
|
|
|
|
if (bInheritHandle)
|
|
flags |= OBJ_INHERIT;
|
|
if (lpName)
|
|
{
|
|
RtlInitUnicodeString (&uname, lpName);
|
|
flags |= OBJ_CASE_INSENSITIVE;
|
|
}
|
|
InitializeObjectAttributes (&attr, lpName ? &uname : NULL, flags,
|
|
lpName ? get_shared_parent_dir () : NULL,
|
|
NULL);
|
|
status = NtOpenSection (§, dwDesiredAccess, &attr);
|
|
if (!NT_SUCCESS (status))
|
|
{
|
|
SetLastError (RtlNtStatusToDosError (status));
|
|
return NULL;
|
|
}
|
|
return sect;
|
|
}
|
|
|
|
HANDLE WINAPI
|
|
OpenFileMappingA (DWORD dwDesiredAccess, BOOL bInheritHandle, LPCSTR lpName)
|
|
{
|
|
WCHAR name[MAX_PATH];
|
|
|
|
if (lpName && !sys_mbstowcs (name, MAX_PATH, lpName))
|
|
{
|
|
SetLastError (ERROR_FILENAME_EXCED_RANGE);
|
|
return NULL;
|
|
}
|
|
return OpenFileMappingW (dwDesiredAccess, bInheritHandle, lpName ? name : NULL);
|
|
}
|