/*
This file is part of GNUnet.
- (C) 2009 Christian Grothoff (and other contributing authors)
+ (C) 2009, 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
#define DEBUG_NETWORK GNUNET_EXTRA_LOGGING
-#define DEBUG_W32_CYCLES GNUNET_EXTRA_LOGGING
#ifndef INVALID_SOCKET
#define INVALID_SOCKET -1
{
#ifndef MINGW
int fd;
-
#else
SOCKET fd;
#endif
}
+/**
+ * Perform proper canonical initialization for a network handle.
+ * Set it to non-blocking, make it non-inheritable to child
+ * processes, disable SIGPIPE, enable "nodelay" (if non-UNIX
+ * stream socket) and check that it is smaller than FS_SETSIZE.
+ *
+ * @param h socket to initialize
+ * @param af address family of the socket
+ * @param type socket type
+ * @return GNUNET_OK on success, GNUNET_SYSERR if initialization
+ * failed and the handle was destroyed
+ */
+static int
+initialize_network_handle (struct GNUNET_NETWORK_Handle *h,
+ int af, int type)
+{
+ h->af = af;
+ if (h->fd == INVALID_SOCKET)
+ {
+#ifdef MINGW
+ SetErrnoFromWinsockError (WSAGetLastError ());
+#endif
+ GNUNET_free (h);
+ return GNUNET_SYSERR;
+ }
+#ifndef MINGW
+ if (h->fd >= FD_SETSIZE)
+ {
+ GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (h));
+ errno = EMFILE;
+ return GNUNET_SYSERR;
+ }
+ if (GNUNET_OK != socket_set_inheritable (h))
+ LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "socket_set_inheritable");
+#endif
+ if (GNUNET_SYSERR == socket_set_blocking (h, GNUNET_NO))
+ {
+ GNUNET_break (0);
+ GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (h));
+ return GNUNET_SYSERR;
+ }
+#ifdef DARWIN
+ socket_set_nosigpipe (h);
+#endif
+ if ( (type == SOCK_STREAM)
+#ifdef AF_UNIX
+ && (af != AF_UNIX)
+#endif
+ )
+ socket_set_nodelay (h);
+ return GNUNET_OK;
+}
+
+
/**
* accept a new connection on a socket
*
}
#endif
ret->fd = accept (desc->fd, address, address_len);
- if (address != NULL)
- ret->af = address->sa_family;
- else
- ret->af = desc->af;
- if (ret->fd == INVALID_SOCKET)
- {
-#ifdef MINGW
- SetErrnoFromWinsockError (WSAGetLastError ());
-#endif
- GNUNET_free (ret);
- return NULL;
- }
-#ifndef MINGW
- if (ret->fd >= FD_SETSIZE)
- {
- GNUNET_break (0 == close (ret->fd));
- GNUNET_free (ret);
- errno = EMFILE;
- return NULL;
- }
-#endif
- if (GNUNET_SYSERR == socket_set_blocking (ret, GNUNET_NO))
-
- {
-
- /* we might want to treat this one as fatal... */
- GNUNET_break (0);
- GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (ret));
+ if (GNUNET_OK != initialize_network_handle (ret,
+ (NULL != address) ? address->sa_family : desc->af,
+ SOCK_STREAM))
return NULL;
- }
-
-#ifndef MINGW
- if (GNUNET_OK != socket_set_inheritable (ret))
- LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "socket_set_inheritable");
-#endif
-#ifdef DARWIN
- socket_set_nosigpipe (ret);
-#endif
-#ifdef AF_UNIX
- if (ret->af != AF_UNIX)
-#endif
- socket_set_nodelay (ret);
return ret;
}
#ifdef MINGW
DWORD error = 0;
-#if DEBUG_NETWORK
- LOG (GNUNET_ERROR_TYPE_DEBUG, "GNUNET_NETWORK_socket_close", "Closing 0x%x\n",
- desc->fd);
-#endif
SetLastError (0);
ret = closesocket (desc->fd);
error = WSAGetLastError ();
SetErrnoFromWinsockError (error);
-#if DEBUG_NETWORK
- LOG (GNUNET_ERROR_TYPE_DEBUG, "GNUNET_NETWORK_socket_close",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
"Closed 0x%x, closesocket() returned %d, GLE is %u\n", desc->fd, ret,
error);
-#endif
#else
ret = close (desc->fd);
#endif
* @return NULL on error (including not supported on target platform)
*/
struct GNUNET_NETWORK_Handle *
-GNUNET_NETWORK_socket_box_native (int fd)
+GNUNET_NETWORK_socket_box_native (SOCKTYPE fd)
{
+ struct GNUNET_NETWORK_Handle *ret;
#if MINGW
- return NULL;
+ unsigned long i;
+ DWORD d;
+ /* FIXME: Find a better call to check that FD is valid */
+ if (WSAIoctl (fd, FIONBIO, (void *) &i, sizeof (i), NULL, 0, &d, NULL, NULL) != 0)
+ return NULL; /* invalid FD */
+ ret = GNUNET_malloc (sizeof (struct GNUNET_NETWORK_Handle));
+ ret->fd = fd;
+ ret->af = AF_UNSPEC;
+ return ret;
#else
- struct GNUNET_NETWORK_Handle *ret;
-
if (fcntl (fd, F_GETFD) < 0)
return NULL; /* invalid FD */
ret = GNUNET_malloc (sizeof (struct GNUNET_NETWORK_Handle));
struct GNUNET_NETWORK_Handle *ret;
ret = GNUNET_malloc (sizeof (struct GNUNET_NETWORK_Handle));
- ret->af = domain;
ret->fd = socket (domain, type, protocol);
- if (INVALID_SOCKET == ret->fd)
- {
-#ifdef MINGW
- SetErrnoFromWinsockError (WSAGetLastError ());
-#endif
- GNUNET_free (ret);
- return NULL;
- }
-
-#ifndef MINGW
- if (ret->fd >= FD_SETSIZE)
- {
- GNUNET_break (0 == close (ret->fd));
- GNUNET_free (ret);
- errno = EMFILE;
+ if (GNUNET_OK !=
+ initialize_network_handle (ret, domain, type))
return NULL;
- }
-
-#endif
- if (GNUNET_SYSERR == socket_set_blocking (ret, GNUNET_NO))
- {
- /* we might want to treat this one as fatal... */
- GNUNET_break (0);
- GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (ret));
- return NULL;
- }
-
-#ifndef MINGW
- if (GNUNET_OK != socket_set_inheritable (ret))
- LOG_STRERROR (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "socket_set_inheritable");
-#endif
-#ifdef DARWIN
- socket_set_nosigpipe (ret);
-#endif
- if ((type == SOCK_STREAM)
-#ifdef AF_UNIX
- && (domain != AF_UNIX)
-#endif
- )
- socket_set_nodelay (ret);
return ret;
}
if (fh->type == GNUNET_PIPE)
{
/* Read zero bytes to check the status of the pipe */
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Reading 0 bytes from the pipe 0x%x\n",
fh->h);
-#endif
if (!ReadFile (fh->h, NULL, 0, NULL, fh->oOverlapRead))
{
DWORD error_code = GetLastError ();
if (error_code == ERROR_IO_PENDING)
{
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Adding the pipe's 0x%x overlapped event to the array as %d\n",
fh->h, nhandles);
-#endif
handle_array[nhandles++] = fh->oOverlapRead->hEvent;
readArray[readPipes++] = fh;
}
- /*
- * else
- * {
- * SetErrnoFromWinError (error_code);
- * }
- */
+ else
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Read failed, adding the read ready event to the array as %d\n", nhandles);
+ handle_array[nhandles++] = hEventReadReady;
+ readArray[readPipes++] = fh;
+ }
}
else
{
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Adding the read ready event to the array as %d\n", nhandles);
-#endif
handle_array[nhandles++] = hEventReadReady;
readArray[readPipes++] = fh;
}
}
if (wfds && write_handles)
{
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Adding the write ready event to the array as %d\n", nhandles);
-#endif
handle_array[nhandles++] = hEventPipeWrite;
writePipePos = nhandles;
}
{
if (rfds)
{
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Adding the socket read event to the array as %d\n", nhandles);
-#endif
handle_array[nhandles++] = hEventRead;
nSockEvents++;
for (i = 0; i < rfds->sds.fd_count; i++)
{
int wakeup = 0;
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Adding the socket write event to the array as %d\n", nhandles);
-#endif
handle_array[nhandles++] = hEventWrite;
nSockEvents++;
for (i = 0; i < wfds->sds.fd_count; i++)
status = send (wfds->sds.fd_array[i], NULL, 0, 0);
error = GetLastError ();
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"pre-send to the socket %d returned %d (%u)\n", i, status, error);
-#endif
if (status == 0 || (error != WSAEWOULDBLOCK && error != WSAENOTCONN))
wakeup = 1;
WSAEventSelect (wfds->sds.fd_array[i], hEventWrite,
}
if (efds)
{
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Adding the socket error event to the array as %d\n", nhandles);
-#endif
handle_array[nhandles++] = hEventException;
nSockEvents++;
for (i = 0; i < efds->sds.fd_count; i++)
#endif
returnedpos = returncode - WAIT_OBJECT_0;
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "return pos is : %d\n", returnedpos);
-#endif
/* FIXME: THIS LINE IS WRONG !! We should add to handles only handles that fired the events, not all ! */
/*
retcode = select (nfds, &aread, &awrite, &aexcept, &tvslice);
if (retcode == -1)
retcode = 0;
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Select retcode : %d\n", retcode);
-#endif
}
/* FIXME: <= writePipePos? Really? */
if ((writePipePos != -1) && (returnedpos <= writePipePos))
{
GNUNET_CONTAINER_slist_append (handles_write, wfds->handles);
retcode += write_handles;
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Added write pipe\n");
-#endif
}
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "ReadPipes is : %d\n", readPipes);
-#endif
/* We have some pipes ready for read. */
/* FIXME: it is supposed to work !! Only choose the Pipes who fired the event, but it is not working */
bret =
PeekNamedPipe (readArray[i]->h, NULL, 0, NULL, &waitstatus, NULL);
error = GetLastError ();
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Peek at read pipe %d (0x%x) returned %d (%d bytes available) GLE %u\n",
i, readArray[i]->h, bret, waitstatus, error);
-#endif
if (bret == 0)
{
if (error != ERROR_BROKEN_PIPE)
readArray[i],
sizeof (struct GNUNET_DISK_FileHandle));
retcode++;
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Added read Pipe 0x%x (0x%x)\n",
readArray[i], readArray[i]->h);
-#endif
}
}
waitstatus = WaitForSingleObject (hEventWrite, 0);
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Wait for the write event returned %d\n",
waitstatus);
-#endif
if (waitstatus == WAIT_OBJECT_0)
{
for (i = 0; i < wfds->sds.fd_count; i++)
status = send (wfds->sds.fd_array[i], NULL, 0, 0);
error = GetLastError ();
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG,
"send to the socket %d returned %d (%u)\n", i, status, error);
-#endif
if (status == 0 || (error != WSAEWOULDBLOCK && error != WSAENOTCONN) ||
(status == -1 && gso_result == 0 && error == WSAENOTCONN &&
so_error == WSAECONNREFUSED))
CancelIo (fh->h);
}
}
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing rfds\n");
-#endif
GNUNET_NETWORK_fdset_zero (rfds);
if (retcode != -1 && nhandles && (returnedpos < nhandles))
GNUNET_NETWORK_fdset_copy_native (rfds, &aread, retcode);
WSAEventSelect (wfds->sds.fd_array[i], hEventWrite, 0);
nsock++;
}
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing wfds\n");
-#endif
GNUNET_NETWORK_fdset_zero (wfds);
if (retcode != -1 && nhandles && (returnedpos < nhandles))
GNUNET_NETWORK_fdset_copy_native (wfds, &awrite, retcode);
WSAEventSelect (efds->sds.fd_array[i], hEventException, 0);
nsock++;
}
-#if DEBUG_NETWORK
LOG (GNUNET_ERROR_TYPE_DEBUG, "Zeroing efds\n");
-#endif
GNUNET_NETWORK_fdset_zero (efds);
if (retcode != -1 && nhandles && (returnedpos < nhandles))
GNUNET_NETWORK_fdset_copy_native (efds, &aexcept, retcode);
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