926 lines
22 KiB
C
926 lines
22 KiB
C
/**
|
|
* WinPR: Windows Portable Runtime
|
|
* Pipe Functions
|
|
*
|
|
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
|
|
* Copyright 2017 Armin Novak <armin.novak@thincast.com>
|
|
* Copyright 2017 Thincast Technologies GmbH
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <winpr/config.h>
|
|
|
|
#include <winpr/crt.h>
|
|
#include <winpr/path.h>
|
|
#include <winpr/synch.h>
|
|
#include <winpr/handle.h>
|
|
|
|
#include <winpr/pipe.h>
|
|
|
|
#ifdef WINPR_HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#ifndef _WIN32
|
|
|
|
#include "../handle/handle.h"
|
|
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <sys/un.h>
|
|
#include <sys/socket.h>
|
|
#include <winpr/assert.h>
|
|
#include <unistd.h>
|
|
|
|
#ifdef WINPR_HAVE_SYS_AIO_H
|
|
#undef WINPR_HAVE_SYS_AIO_H /* disable for now, incomplete */
|
|
#endif
|
|
|
|
#ifdef WINPR_HAVE_SYS_AIO_H
|
|
#include <aio.h>
|
|
#endif
|
|
|
|
#include "pipe.h"
|
|
|
|
#include "../log.h"
|
|
#define TAG WINPR_TAG("pipe")
|
|
|
|
/*
|
|
* Since the WinPR implementation of named pipes makes use of UNIX domain
|
|
* sockets, it is not possible to bind the same name more than once (i.e.,
|
|
* SO_REUSEADDR does not work with UNIX domain sockets). As a result, the
|
|
* first call to CreateNamedPipe with name n creates a "shared" UNIX domain
|
|
* socket descriptor that gets duplicated via dup() for the first and all
|
|
* subsequent calls to CreateNamedPipe with name n.
|
|
*
|
|
* The following array keeps track of the references to the shared socked
|
|
* descriptors. If an entry's reference count is zero the base socket
|
|
* descriptor gets closed and the entry is removed from the list.
|
|
*/
|
|
|
|
static wArrayList* g_NamedPipeServerSockets = NULL;
|
|
|
|
typedef struct
|
|
{
|
|
char* name;
|
|
int serverfd;
|
|
int references;
|
|
} NamedPipeServerSocketEntry;
|
|
|
|
static BOOL PipeIsHandled(HANDLE handle)
|
|
{
|
|
return WINPR_HANDLE_IS_HANDLED(handle, HANDLE_TYPE_ANONYMOUS_PIPE, FALSE);
|
|
}
|
|
|
|
static int PipeGetFd(HANDLE handle)
|
|
{
|
|
WINPR_PIPE* pipe = (WINPR_PIPE*)handle;
|
|
|
|
if (!PipeIsHandled(handle))
|
|
return -1;
|
|
|
|
return pipe->fd;
|
|
}
|
|
|
|
static BOOL PipeCloseHandle(HANDLE handle)
|
|
{
|
|
WINPR_PIPE* pipe = (WINPR_PIPE*)handle;
|
|
|
|
if (!PipeIsHandled(handle))
|
|
return FALSE;
|
|
|
|
if (pipe->fd != -1)
|
|
{
|
|
close(pipe->fd);
|
|
pipe->fd = -1;
|
|
}
|
|
|
|
free(handle);
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL PipeRead(PVOID Object, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
|
|
LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
|
|
{
|
|
SSIZE_T io_status;
|
|
WINPR_PIPE* pipe;
|
|
BOOL status = TRUE;
|
|
|
|
if (lpOverlapped)
|
|
{
|
|
WLog_ERR(TAG, "WinPR %s does not support the lpOverlapped parameter", __FUNCTION__);
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return FALSE;
|
|
}
|
|
|
|
pipe = (WINPR_PIPE*)Object;
|
|
|
|
do
|
|
{
|
|
io_status = read(pipe->fd, lpBuffer, nNumberOfBytesToRead);
|
|
} while ((io_status < 0) && (errno == EINTR));
|
|
|
|
if (io_status < 0)
|
|
{
|
|
status = FALSE;
|
|
|
|
switch (errno)
|
|
{
|
|
case EWOULDBLOCK:
|
|
SetLastError(ERROR_NO_DATA);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (lpNumberOfBytesRead)
|
|
*lpNumberOfBytesRead = (DWORD)io_status;
|
|
|
|
return status;
|
|
}
|
|
|
|
static BOOL PipeWrite(PVOID Object, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite,
|
|
LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
|
|
{
|
|
SSIZE_T io_status;
|
|
WINPR_PIPE* pipe;
|
|
|
|
if (lpOverlapped)
|
|
{
|
|
WLog_ERR(TAG, "WinPR %s does not support the lpOverlapped parameter", __FUNCTION__);
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return FALSE;
|
|
}
|
|
|
|
pipe = (WINPR_PIPE*)Object;
|
|
|
|
do
|
|
{
|
|
io_status = write(pipe->fd, lpBuffer, nNumberOfBytesToWrite);
|
|
} while ((io_status < 0) && (errno == EINTR));
|
|
|
|
if ((io_status < 0) && (errno == EWOULDBLOCK))
|
|
io_status = 0;
|
|
|
|
*lpNumberOfBytesWritten = (DWORD)io_status;
|
|
return TRUE;
|
|
}
|
|
|
|
static HANDLE_OPS ops = { PipeIsHandled,
|
|
PipeCloseHandle,
|
|
PipeGetFd,
|
|
NULL, /* CleanupHandle */
|
|
PipeRead,
|
|
NULL, /* FileReadEx */
|
|
NULL, /* FileReadScatter */
|
|
PipeWrite,
|
|
NULL, /* FileWriteEx */
|
|
NULL, /* FileWriteGather */
|
|
NULL, /* FileGetFileSize */
|
|
NULL, /* FlushFileBuffers */
|
|
NULL, /* FileSetEndOfFile */
|
|
NULL, /* FileSetFilePointer */
|
|
NULL, /* SetFilePointerEx */
|
|
NULL, /* FileLockFile */
|
|
NULL, /* FileLockFileEx */
|
|
NULL, /* FileUnlockFile */
|
|
NULL, /* FileUnlockFileEx */
|
|
NULL /* SetFileTime */
|
|
,
|
|
NULL };
|
|
|
|
static BOOL NamedPipeIsHandled(HANDLE handle)
|
|
{
|
|
return WINPR_HANDLE_IS_HANDLED(handle, HANDLE_TYPE_NAMED_PIPE, TRUE);
|
|
}
|
|
|
|
static int NamedPipeGetFd(HANDLE handle)
|
|
{
|
|
WINPR_NAMED_PIPE* pipe = (WINPR_NAMED_PIPE*)handle;
|
|
|
|
if (!NamedPipeIsHandled(handle))
|
|
return -1;
|
|
|
|
if (pipe->ServerMode)
|
|
return pipe->serverfd;
|
|
|
|
return pipe->clientfd;
|
|
}
|
|
|
|
static BOOL NamedPipeCloseHandle(HANDLE handle)
|
|
{
|
|
WINPR_NAMED_PIPE* pNamedPipe = (WINPR_NAMED_PIPE*)handle;
|
|
|
|
/* This check confuses the analyzer. Since not all handle
|
|
* types are handled here, it guesses that the memory of a
|
|
* NamedPipeHandle may leak. */
|
|
#ifndef __clang_analyzer__
|
|
if (!NamedPipeIsHandled(handle))
|
|
return FALSE;
|
|
#endif
|
|
|
|
if (pNamedPipe->pfnUnrefNamedPipe)
|
|
pNamedPipe->pfnUnrefNamedPipe(pNamedPipe);
|
|
|
|
free(pNamedPipe->name);
|
|
free(pNamedPipe->lpFileName);
|
|
free(pNamedPipe->lpFilePath);
|
|
|
|
if (pNamedPipe->serverfd != -1)
|
|
close(pNamedPipe->serverfd);
|
|
|
|
if (pNamedPipe->clientfd != -1)
|
|
close(pNamedPipe->clientfd);
|
|
|
|
free(pNamedPipe);
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL NamedPipeRead(PVOID Object, LPVOID lpBuffer, DWORD nNumberOfBytesToRead,
|
|
LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped)
|
|
{
|
|
SSIZE_T io_status;
|
|
WINPR_NAMED_PIPE* pipe;
|
|
BOOL status = TRUE;
|
|
|
|
if (lpOverlapped)
|
|
{
|
|
WLog_ERR(TAG, "WinPR %s does not support the lpOverlapped parameter", __FUNCTION__);
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return FALSE;
|
|
}
|
|
|
|
pipe = (WINPR_NAMED_PIPE*)Object;
|
|
|
|
if (!(pipe->dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
|
|
{
|
|
if (pipe->clientfd == -1)
|
|
return FALSE;
|
|
|
|
do
|
|
{
|
|
io_status = read(pipe->clientfd, lpBuffer, nNumberOfBytesToRead);
|
|
} while ((io_status < 0) && (errno == EINTR));
|
|
|
|
if (io_status == 0)
|
|
{
|
|
SetLastError(ERROR_BROKEN_PIPE);
|
|
status = FALSE;
|
|
}
|
|
else if (io_status < 0)
|
|
{
|
|
status = FALSE;
|
|
|
|
switch (errno)
|
|
{
|
|
case EWOULDBLOCK:
|
|
SetLastError(ERROR_NO_DATA);
|
|
break;
|
|
|
|
default:
|
|
SetLastError(ERROR_BROKEN_PIPE);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (lpNumberOfBytesRead)
|
|
*lpNumberOfBytesRead = (DWORD)io_status;
|
|
}
|
|
else
|
|
{
|
|
/* Overlapped I/O */
|
|
if (!lpOverlapped)
|
|
return FALSE;
|
|
|
|
if (pipe->clientfd == -1)
|
|
return FALSE;
|
|
|
|
pipe->lpOverlapped = lpOverlapped;
|
|
#ifdef WINPR_HAVE_SYS_AIO_H
|
|
{
|
|
int aio_status;
|
|
struct aiocb cb = { 0 };
|
|
|
|
cb.aio_fildes = pipe->clientfd;
|
|
cb.aio_buf = lpBuffer;
|
|
cb.aio_nbytes = nNumberOfBytesToRead;
|
|
cb.aio_offset = lpOverlapped->Offset;
|
|
cb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
|
|
cb.aio_sigevent.sigev_signo = SIGIO;
|
|
cb.aio_sigevent.sigev_value.sival_ptr = (void*)lpOverlapped;
|
|
InstallAioSignalHandler();
|
|
aio_status = aio_read(&cb);
|
|
WLog_DBG(TAG, "aio_read status: %d", aio_status);
|
|
|
|
if (aio_status < 0)
|
|
status = FALSE;
|
|
|
|
return status;
|
|
}
|
|
#else
|
|
/* synchronous behavior */
|
|
lpOverlapped->Internal = 0;
|
|
lpOverlapped->InternalHigh = (ULONG_PTR)nNumberOfBytesToRead;
|
|
lpOverlapped->Pointer = (PVOID)lpBuffer;
|
|
SetEvent(lpOverlapped->hEvent);
|
|
#endif
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
BOOL NamedPipeWrite(PVOID Object, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite,
|
|
LPDWORD lpNumberOfBytesWritten, LPOVERLAPPED lpOverlapped)
|
|
{
|
|
SSIZE_T io_status;
|
|
WINPR_NAMED_PIPE* pipe;
|
|
BOOL status = TRUE;
|
|
|
|
if (lpOverlapped)
|
|
{
|
|
WLog_ERR(TAG, "WinPR %s does not support the lpOverlapped parameter", __FUNCTION__);
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return FALSE;
|
|
}
|
|
|
|
pipe = (WINPR_NAMED_PIPE*)Object;
|
|
|
|
if (!(pipe->dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
|
|
{
|
|
if (pipe->clientfd == -1)
|
|
return FALSE;
|
|
|
|
do
|
|
{
|
|
io_status = write(pipe->clientfd, lpBuffer, nNumberOfBytesToWrite);
|
|
} while ((io_status < 0) && (errno == EINTR));
|
|
|
|
if (io_status < 0)
|
|
{
|
|
*lpNumberOfBytesWritten = 0;
|
|
|
|
switch (errno)
|
|
{
|
|
case EWOULDBLOCK:
|
|
io_status = 0;
|
|
status = TRUE;
|
|
break;
|
|
|
|
default:
|
|
status = FALSE;
|
|
}
|
|
}
|
|
|
|
*lpNumberOfBytesWritten = (DWORD)io_status;
|
|
return status;
|
|
}
|
|
else
|
|
{
|
|
/* Overlapped I/O */
|
|
if (!lpOverlapped)
|
|
return FALSE;
|
|
|
|
if (pipe->clientfd == -1)
|
|
return FALSE;
|
|
|
|
pipe->lpOverlapped = lpOverlapped;
|
|
#ifdef WINPR_HAVE_SYS_AIO_H
|
|
{
|
|
struct aiocb cb = { 0 };
|
|
|
|
cb.aio_fildes = pipe->clientfd;
|
|
cb.aio_buf = (void*)lpBuffer;
|
|
cb.aio_nbytes = nNumberOfBytesToWrite;
|
|
cb.aio_offset = lpOverlapped->Offset;
|
|
cb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
|
|
cb.aio_sigevent.sigev_signo = SIGIO;
|
|
cb.aio_sigevent.sigev_value.sival_ptr = (void*)lpOverlapped;
|
|
InstallAioSignalHandler();
|
|
io_status = aio_write(&cb);
|
|
WLog_DBG("aio_write status: %" PRIdz, io_status);
|
|
|
|
if (io_status < 0)
|
|
status = FALSE;
|
|
|
|
return status;
|
|
}
|
|
#else
|
|
/* synchronous behavior */
|
|
lpOverlapped->Internal = 1;
|
|
lpOverlapped->InternalHigh = (ULONG_PTR)nNumberOfBytesToWrite;
|
|
{
|
|
union
|
|
{
|
|
LPCVOID cpv;
|
|
PVOID pv;
|
|
} cnv;
|
|
cnv.cpv = lpBuffer;
|
|
lpOverlapped->Pointer = cnv.pv;
|
|
}
|
|
SetEvent(lpOverlapped->hEvent);
|
|
#endif
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static HANDLE_OPS namedOps = { NamedPipeIsHandled,
|
|
NamedPipeCloseHandle,
|
|
NamedPipeGetFd,
|
|
NULL, /* CleanupHandle */
|
|
NamedPipeRead,
|
|
NULL,
|
|
NULL,
|
|
NamedPipeWrite,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL };
|
|
|
|
static BOOL InitWinPRPipeModule()
|
|
{
|
|
if (g_NamedPipeServerSockets)
|
|
return TRUE;
|
|
|
|
g_NamedPipeServerSockets = ArrayList_New(FALSE);
|
|
return g_NamedPipeServerSockets != NULL;
|
|
}
|
|
|
|
/*
|
|
* Unnamed pipe
|
|
*/
|
|
|
|
BOOL CreatePipe(PHANDLE hReadPipe, PHANDLE hWritePipe, LPSECURITY_ATTRIBUTES lpPipeAttributes,
|
|
DWORD nSize)
|
|
{
|
|
int pipe_fd[2];
|
|
WINPR_PIPE* pReadPipe;
|
|
WINPR_PIPE* pWritePipe;
|
|
|
|
WINPR_UNUSED(lpPipeAttributes);
|
|
WINPR_UNUSED(nSize);
|
|
|
|
pipe_fd[0] = -1;
|
|
pipe_fd[1] = -1;
|
|
|
|
if (pipe(pipe_fd) < 0)
|
|
{
|
|
WLog_ERR(TAG, "failed to create pipe");
|
|
return FALSE;
|
|
}
|
|
|
|
pReadPipe = (WINPR_PIPE*)calloc(1, sizeof(WINPR_PIPE));
|
|
pWritePipe = (WINPR_PIPE*)calloc(1, sizeof(WINPR_PIPE));
|
|
|
|
if (!pReadPipe || !pWritePipe)
|
|
{
|
|
free(pReadPipe);
|
|
free(pWritePipe);
|
|
return FALSE;
|
|
}
|
|
|
|
pReadPipe->fd = pipe_fd[0];
|
|
pWritePipe->fd = pipe_fd[1];
|
|
WINPR_HANDLE_SET_TYPE_AND_MODE(pReadPipe, HANDLE_TYPE_ANONYMOUS_PIPE, WINPR_FD_READ);
|
|
pReadPipe->common.ops = &ops;
|
|
*((ULONG_PTR*)hReadPipe) = (ULONG_PTR)pReadPipe;
|
|
WINPR_HANDLE_SET_TYPE_AND_MODE(pWritePipe, HANDLE_TYPE_ANONYMOUS_PIPE, WINPR_FD_READ);
|
|
pWritePipe->common.ops = &ops;
|
|
*((ULONG_PTR*)hWritePipe) = (ULONG_PTR)pWritePipe;
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* Named pipe
|
|
*/
|
|
|
|
static void winpr_unref_named_pipe(WINPR_NAMED_PIPE* pNamedPipe)
|
|
{
|
|
size_t index;
|
|
NamedPipeServerSocketEntry* baseSocket;
|
|
|
|
if (!pNamedPipe)
|
|
return;
|
|
|
|
WINPR_ASSERT(pNamedPipe->name);
|
|
WINPR_ASSERT(g_NamedPipeServerSockets);
|
|
// WLog_VRB(TAG, "%p (%s)", (void*) pNamedPipe, pNamedPipe->name);
|
|
ArrayList_Lock(g_NamedPipeServerSockets);
|
|
|
|
for (index = 0; index < ArrayList_Count(g_NamedPipeServerSockets); index++)
|
|
{
|
|
baseSocket =
|
|
(NamedPipeServerSocketEntry*)ArrayList_GetItem(g_NamedPipeServerSockets, index);
|
|
WINPR_ASSERT(baseSocket->name);
|
|
|
|
if (!strcmp(baseSocket->name, pNamedPipe->name))
|
|
{
|
|
WINPR_ASSERT(baseSocket->references > 0);
|
|
WINPR_ASSERT(baseSocket->serverfd != -1);
|
|
|
|
if (--baseSocket->references == 0)
|
|
{
|
|
// WLog_DBG(TAG, "removing shared server socked resource");
|
|
// WLog_DBG(TAG, "closing shared serverfd %d", baseSocket->serverfd);
|
|
ArrayList_Remove(g_NamedPipeServerSockets, baseSocket);
|
|
close(baseSocket->serverfd);
|
|
free(baseSocket->name);
|
|
free(baseSocket);
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
ArrayList_Unlock(g_NamedPipeServerSockets);
|
|
}
|
|
|
|
HANDLE CreateNamedPipeA(LPCSTR lpName, DWORD dwOpenMode, DWORD dwPipeMode, DWORD nMaxInstances,
|
|
DWORD nOutBufferSize, DWORD nInBufferSize, DWORD nDefaultTimeOut,
|
|
LPSECURITY_ATTRIBUTES lpSecurityAttributes)
|
|
{
|
|
size_t index;
|
|
char* lpPipePath;
|
|
WINPR_NAMED_PIPE* pNamedPipe = NULL;
|
|
int serverfd = -1;
|
|
NamedPipeServerSocketEntry* baseSocket = NULL;
|
|
|
|
WINPR_UNUSED(lpSecurityAttributes);
|
|
|
|
if (dwOpenMode & FILE_FLAG_OVERLAPPED)
|
|
{
|
|
WLog_ERR(TAG, "WinPR %s does not support the FILE_FLAG_OVERLAPPED flag", __FUNCTION__);
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
if (!lpName)
|
|
return INVALID_HANDLE_VALUE;
|
|
|
|
if (!InitWinPRPipeModule())
|
|
return INVALID_HANDLE_VALUE;
|
|
|
|
pNamedPipe = (WINPR_NAMED_PIPE*)calloc(1, sizeof(WINPR_NAMED_PIPE));
|
|
|
|
if (!pNamedPipe)
|
|
return INVALID_HANDLE_VALUE;
|
|
|
|
ArrayList_Lock(g_NamedPipeServerSockets);
|
|
WINPR_HANDLE_SET_TYPE_AND_MODE(pNamedPipe, HANDLE_TYPE_NAMED_PIPE, WINPR_FD_READ);
|
|
pNamedPipe->serverfd = -1;
|
|
pNamedPipe->clientfd = -1;
|
|
|
|
if (!(pNamedPipe->name = _strdup(lpName)))
|
|
goto out;
|
|
|
|
if (!(pNamedPipe->lpFileName = GetNamedPipeNameWithoutPrefixA(lpName)))
|
|
goto out;
|
|
|
|
if (!(pNamedPipe->lpFilePath = GetNamedPipeUnixDomainSocketFilePathA(lpName)))
|
|
goto out;
|
|
|
|
pNamedPipe->dwOpenMode = dwOpenMode;
|
|
pNamedPipe->dwPipeMode = dwPipeMode;
|
|
pNamedPipe->nMaxInstances = nMaxInstances;
|
|
pNamedPipe->nOutBufferSize = nOutBufferSize;
|
|
pNamedPipe->nInBufferSize = nInBufferSize;
|
|
pNamedPipe->nDefaultTimeOut = nDefaultTimeOut;
|
|
pNamedPipe->dwFlagsAndAttributes = dwOpenMode;
|
|
pNamedPipe->clientfd = -1;
|
|
pNamedPipe->ServerMode = TRUE;
|
|
pNamedPipe->common.ops = &namedOps;
|
|
|
|
for (index = 0; index < ArrayList_Count(g_NamedPipeServerSockets); index++)
|
|
{
|
|
baseSocket =
|
|
(NamedPipeServerSocketEntry*)ArrayList_GetItem(g_NamedPipeServerSockets, index);
|
|
|
|
if (!strcmp(baseSocket->name, lpName))
|
|
{
|
|
serverfd = baseSocket->serverfd;
|
|
// WLog_DBG(TAG, "using shared socked resource for pipe %p (%s)", (void*) pNamedPipe,
|
|
// lpName);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If this is the first instance of the named pipe... */
|
|
if (serverfd == -1)
|
|
{
|
|
struct sockaddr_un s = { 0 };
|
|
/* Create the UNIX domain socket and start listening. */
|
|
if (!(lpPipePath = GetNamedPipeUnixDomainSocketBaseFilePathA()))
|
|
goto out;
|
|
|
|
if (!winpr_PathFileExists(lpPipePath))
|
|
{
|
|
if (!CreateDirectoryA(lpPipePath, 0))
|
|
{
|
|
free(lpPipePath);
|
|
goto out;
|
|
}
|
|
|
|
UnixChangeFileMode(lpPipePath, 0xFFFF);
|
|
}
|
|
|
|
free(lpPipePath);
|
|
|
|
if (winpr_PathFileExists(pNamedPipe->lpFilePath))
|
|
winpr_DeleteFile(pNamedPipe->lpFilePath);
|
|
|
|
if ((serverfd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
|
|
{
|
|
WLog_ERR(TAG, "CreateNamedPipeA: socket error, %s", strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
s.sun_family = AF_UNIX;
|
|
sprintf_s(s.sun_path, ARRAYSIZE(s.sun_path), "%s", pNamedPipe->lpFilePath);
|
|
|
|
if (bind(serverfd, (struct sockaddr*)&s, sizeof(struct sockaddr_un)) == -1)
|
|
{
|
|
WLog_ERR(TAG, "CreateNamedPipeA: bind error, %s", strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
if (listen(serverfd, 2) == -1)
|
|
{
|
|
WLog_ERR(TAG, "CreateNamedPipeA: listen error, %s", strerror(errno));
|
|
goto out;
|
|
}
|
|
|
|
UnixChangeFileMode(pNamedPipe->lpFilePath, 0xFFFF);
|
|
|
|
if (!(baseSocket = (NamedPipeServerSocketEntry*)malloc(sizeof(NamedPipeServerSocketEntry))))
|
|
goto out;
|
|
|
|
if (!(baseSocket->name = _strdup(lpName)))
|
|
{
|
|
free(baseSocket);
|
|
goto out;
|
|
}
|
|
|
|
baseSocket->serverfd = serverfd;
|
|
baseSocket->references = 0;
|
|
|
|
if (!ArrayList_Append(g_NamedPipeServerSockets, baseSocket))
|
|
{
|
|
free(baseSocket->name);
|
|
goto out;
|
|
}
|
|
|
|
// WLog_DBG(TAG, "created shared socked resource for pipe %p (%s). base serverfd = %d",
|
|
// (void*) pNamedPipe, lpName, serverfd);
|
|
}
|
|
|
|
pNamedPipe->serverfd = dup(baseSocket->serverfd);
|
|
// WLog_DBG(TAG, "using serverfd %d (duplicated from %d)", pNamedPipe->serverfd,
|
|
// baseSocket->serverfd);
|
|
pNamedPipe->pfnUnrefNamedPipe = winpr_unref_named_pipe;
|
|
baseSocket->references++;
|
|
|
|
if (dwOpenMode & FILE_FLAG_OVERLAPPED)
|
|
{
|
|
#if 0
|
|
int flags = fcntl(pNamedPipe->serverfd, F_GETFL);
|
|
|
|
if (flags != -1)
|
|
fcntl(pNamedPipe->serverfd, F_SETFL, flags | O_NONBLOCK);
|
|
|
|
#endif
|
|
}
|
|
|
|
ArrayList_Unlock(g_NamedPipeServerSockets);
|
|
return pNamedPipe;
|
|
out:
|
|
NamedPipeCloseHandle(pNamedPipe);
|
|
|
|
if (serverfd != -1)
|
|
close(serverfd);
|
|
|
|
ArrayList_Unlock(g_NamedPipeServerSockets);
|
|
return INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
HANDLE CreateNamedPipeW(LPCWSTR lpName, DWORD dwOpenMode, DWORD dwPipeMode, DWORD nMaxInstances,
|
|
DWORD nOutBufferSize, DWORD nInBufferSize, DWORD nDefaultTimeOut,
|
|
LPSECURITY_ATTRIBUTES lpSecurityAttributes)
|
|
{
|
|
WLog_ERR(TAG, "%s is not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return NULL;
|
|
}
|
|
|
|
BOOL ConnectNamedPipe(HANDLE hNamedPipe, LPOVERLAPPED lpOverlapped)
|
|
{
|
|
int status;
|
|
socklen_t length;
|
|
WINPR_NAMED_PIPE* pNamedPipe;
|
|
|
|
if (lpOverlapped)
|
|
{
|
|
WLog_ERR(TAG, "WinPR %s does not support the lpOverlapped parameter", __FUNCTION__);
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!hNamedPipe)
|
|
return FALSE;
|
|
|
|
pNamedPipe = (WINPR_NAMED_PIPE*)hNamedPipe;
|
|
|
|
if (!(pNamedPipe->dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
|
|
{
|
|
struct sockaddr_un s = { 0 };
|
|
length = sizeof(struct sockaddr_un);
|
|
status = accept(pNamedPipe->serverfd, (struct sockaddr*)&s, &length);
|
|
|
|
if (status < 0)
|
|
{
|
|
WLog_ERR(TAG, "ConnectNamedPipe: accept error");
|
|
return FALSE;
|
|
}
|
|
|
|
pNamedPipe->clientfd = status;
|
|
pNamedPipe->ServerMode = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (!lpOverlapped)
|
|
return FALSE;
|
|
|
|
if (pNamedPipe->serverfd == -1)
|
|
return FALSE;
|
|
|
|
pNamedPipe->lpOverlapped = lpOverlapped;
|
|
/* synchronous behavior */
|
|
lpOverlapped->Internal = 2;
|
|
lpOverlapped->InternalHigh = (ULONG_PTR)0;
|
|
lpOverlapped->Pointer = (PVOID)NULL;
|
|
SetEvent(lpOverlapped->hEvent);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL DisconnectNamedPipe(HANDLE hNamedPipe)
|
|
{
|
|
WINPR_NAMED_PIPE* pNamedPipe;
|
|
pNamedPipe = (WINPR_NAMED_PIPE*)hNamedPipe;
|
|
|
|
if (pNamedPipe->clientfd != -1)
|
|
{
|
|
close(pNamedPipe->clientfd);
|
|
pNamedPipe->clientfd = -1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL PeekNamedPipe(HANDLE hNamedPipe, LPVOID lpBuffer, DWORD nBufferSize, LPDWORD lpBytesRead,
|
|
LPDWORD lpTotalBytesAvail, LPDWORD lpBytesLeftThisMessage)
|
|
{
|
|
WLog_ERR(TAG, "%s: Not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL TransactNamedPipe(HANDLE hNamedPipe, LPVOID lpInBuffer, DWORD nInBufferSize,
|
|
LPVOID lpOutBuffer, DWORD nOutBufferSize, LPDWORD lpBytesRead,
|
|
LPOVERLAPPED lpOverlapped)
|
|
{
|
|
WLog_ERR(TAG, "%s: Not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL WaitNamedPipeA(LPCSTR lpNamedPipeName, DWORD nTimeOut)
|
|
{
|
|
BOOL status;
|
|
DWORD nWaitTime;
|
|
char* lpFilePath;
|
|
DWORD dwSleepInterval;
|
|
|
|
if (!lpNamedPipeName)
|
|
return FALSE;
|
|
|
|
lpFilePath = GetNamedPipeUnixDomainSocketFilePathA(lpNamedPipeName);
|
|
|
|
if (!lpFilePath)
|
|
return FALSE;
|
|
|
|
if (nTimeOut == NMPWAIT_USE_DEFAULT_WAIT)
|
|
nTimeOut = 50;
|
|
|
|
nWaitTime = 0;
|
|
status = TRUE;
|
|
dwSleepInterval = 10;
|
|
|
|
while (!winpr_PathFileExists(lpFilePath))
|
|
{
|
|
Sleep(dwSleepInterval);
|
|
nWaitTime += dwSleepInterval;
|
|
|
|
if (nWaitTime >= nTimeOut)
|
|
{
|
|
status = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
free(lpFilePath);
|
|
return status;
|
|
}
|
|
|
|
BOOL WaitNamedPipeW(LPCWSTR lpNamedPipeName, DWORD nTimeOut)
|
|
{
|
|
WLog_ERR(TAG, "%s: Not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL SetNamedPipeHandleState(HANDLE hNamedPipe, LPDWORD lpMode, LPDWORD lpMaxCollectionCount,
|
|
LPDWORD lpCollectDataTimeout)
|
|
{
|
|
int fd;
|
|
int flags;
|
|
WINPR_NAMED_PIPE* pNamedPipe;
|
|
pNamedPipe = (WINPR_NAMED_PIPE*)hNamedPipe;
|
|
|
|
if (lpMode)
|
|
{
|
|
pNamedPipe->dwPipeMode = *lpMode;
|
|
fd = (pNamedPipe->ServerMode) ? pNamedPipe->serverfd : pNamedPipe->clientfd;
|
|
|
|
if (fd == -1)
|
|
return FALSE;
|
|
|
|
flags = fcntl(fd, F_GETFL);
|
|
|
|
if (flags < 0)
|
|
return FALSE;
|
|
|
|
if (pNamedPipe->dwPipeMode & PIPE_NOWAIT)
|
|
flags = (flags | O_NONBLOCK);
|
|
else
|
|
flags = (flags & ~(O_NONBLOCK));
|
|
|
|
if (fcntl(fd, F_SETFL, flags) < 0)
|
|
return FALSE;
|
|
}
|
|
|
|
if (lpMaxCollectionCount)
|
|
{
|
|
}
|
|
|
|
if (lpCollectDataTimeout)
|
|
{
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL ImpersonateNamedPipeClient(HANDLE hNamedPipe)
|
|
{
|
|
WLog_ERR(TAG, "%s: Not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL GetNamedPipeClientComputerNameA(HANDLE Pipe, LPCSTR ClientComputerName,
|
|
ULONG ClientComputerNameLength)
|
|
{
|
|
WLog_ERR(TAG, "%s: Not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL GetNamedPipeClientComputerNameW(HANDLE Pipe, LPCWSTR ClientComputerName,
|
|
ULONG ClientComputerNameLength)
|
|
{
|
|
WLog_ERR(TAG, "%s: Not implemented", __FUNCTION__);
|
|
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
|
|
return FALSE;
|
|
}
|
|
|
|
#endif
|