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wsdapi: Add support for sending messages via UDP multicast. 

Signed-off-by: Owen Rudge <orudge@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Owen Rudge 2018-03-19 21:46:13 +00:00 committed by Alexandre Julliard
parent 81e4dbcdac
commit 09612dd54d
6 changed files with 289 additions and 5 deletions
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3
dlls/wsdapi/Makefile.in
View File

@ -1,6 +1,6 @@
MODULE = wsdapi.dll
IMPORTLIB = wsdapi
IMPORTS = user32 ws2_32
IMPORTS = bcrypt iphlpapi rpcrt4 user32 ws2_32
C_SRCS = \
address.c \
@ -8,5 +8,6 @@ C_SRCS = \
main.c \
memory.c \
msgparams.c \
network.c \
soap.c \
xml.c

5
dlls/wsdapi/discovery.c
View File

@ -82,6 +82,8 @@ static ULONG WINAPI IWSDiscoveryPublisherImpl_Release(IWSDiscoveryPublisher *ifa
if (ref == 0)
{
terminate_networking(This);
if (This->xmlContext != NULL)
{
IWSDXMLContext_Release(This->xmlContext);
@ -147,6 +149,9 @@ static HRESULT WINAPI IWSDiscoveryPublisherImpl_RegisterNotificationSink(IWSDisc
list_add_tail(&impl->notificationSinks, &sink->entry);
if ((!impl->publisherStarted) && (!init_networking(impl)))
return E_FAIL;
return S_OK;
}

259
dlls/wsdapi/network.c Normal file
View File

@ -0,0 +1,259 @@
/*
* Web Services on Devices
*
* Copyright 2017-2018 Owen Rudge for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "wsdapi_internal.h"
#include "wine/debug.h"
#include "wine/heap.h"
#include "iphlpapi.h"
#include "bcrypt.h"
WINE_DEFAULT_DEBUG_CHANNEL(wsdapi);
#define SEND_ADDRESS_IPV4 0xEFFFFFFA /* 239.255.255.250 */
#define SEND_PORT 3702
static UCHAR send_address_ipv6[] = {0xFF,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0xC}; /* FF02::C */
#define UNICAST_UDP_REPEAT 1
#define MULTICAST_UDP_REPEAT 2
#define UDP_MIN_DELAY 50
#define UDP_MAX_DELAY 250
#define UDP_UPPER_DELAY 500
static void send_message(SOCKET s, char *data, int length, SOCKADDR_STORAGE *dest, int max_initial_delay, int repeat)
{
UINT delay;
int len;
/* Sleep for a random amount of time before sending the message */
if (max_initial_delay > 0)
{
BCryptGenRandom(NULL, (BYTE*) &delay, sizeof(UINT), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
Sleep(delay % max_initial_delay);
}
len = (dest->ss_family == AF_INET6) ? sizeof(SOCKADDR_IN6) : sizeof(SOCKADDR_IN);
if (sendto(s, data, length, 0, (SOCKADDR *) dest, len) == SOCKET_ERROR)
WARN("Unable to send data to socket: %d\n", WSAGetLastError());
if (repeat-- <= 0) return;
BCryptGenRandom(NULL, (BYTE*) &delay, sizeof(UINT), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
delay = delay % (UDP_MAX_DELAY - UDP_MIN_DELAY + 1) + UDP_MIN_DELAY;
for (;;)
{
Sleep(delay);
if (sendto(s, data, length, 0, (SOCKADDR *) dest, len) == SOCKET_ERROR)
WARN("Unable to send data to socket: %d\n", WSAGetLastError());
if (repeat-- <= 0) break;
delay = min(delay * 2, UDP_UPPER_DELAY);
}
}
typedef struct sending_thread_params
{
char *data;
int length;
SOCKET sock;
SOCKADDR_STORAGE dest;
int max_initial_delay;
} sending_thread_params;
static DWORD WINAPI sending_thread(LPVOID lpParam)
{
sending_thread_params *params = (sending_thread_params *) lpParam;
send_message(params->sock, params->data, params->length, &params->dest, params->max_initial_delay,
MULTICAST_UDP_REPEAT);
closesocket(params->sock);
heap_free(params->data);
heap_free(params);
return 0;
}
BOOL send_udp_multicast_of_type(char *data, int length, int max_initial_delay, ULONG family)
{
IP_ADAPTER_ADDRESSES *adapter_addresses = NULL, *adapter_addr;
static const struct in6_addr i_addr_zero;
sending_thread_params *send_params;
ULONG bufferSize = 0;
LPSOCKADDR sockaddr;
BOOL ret = FALSE;
HANDLE thread_handle;
const char ttl = 8;
ULONG retval;
SOCKET s;
/* Get size of buffer for adapters */
retval = GetAdaptersAddresses(family, 0, NULL, NULL, &bufferSize);
if (retval != ERROR_BUFFER_OVERFLOW)
{
WARN("GetAdaptorsAddresses failed with error %08x\n", retval);
goto cleanup;
}
adapter_addresses = (IP_ADAPTER_ADDRESSES *) heap_alloc(bufferSize);
if (adapter_addresses == NULL)
{
WARN("Out of memory allocating space for adapter information\n");
goto cleanup;
}
/* Get list of adapters */
retval = GetAdaptersAddresses(family, 0, NULL, adapter_addresses, &bufferSize);
if (retval != ERROR_SUCCESS)
{
WARN("GetAdaptorsAddresses failed with error %08x\n", retval);
goto cleanup;
}
for (adapter_addr = adapter_addresses; adapter_addr != NULL; adapter_addr = adapter_addr->Next)
{
if (adapter_addr->FirstUnicastAddress == NULL)
{
TRACE("No address found for adaptor '%s' (%p)\n", debugstr_a(adapter_addr->AdapterName), adapter_addr);
continue;
}
sockaddr = adapter_addr->FirstUnicastAddress->Address.lpSockaddr;
/* Create a socket and bind to the adapter address */
s = socket(family, SOCK_DGRAM, IPPROTO_UDP);
if (s == INVALID_SOCKET)
{
WARN("Unable to create socket: %d\n", WSAGetLastError());
continue;
}
if (bind(s, sockaddr, adapter_addr->FirstUnicastAddress->Address.iSockaddrLength) == SOCKET_ERROR)
{
WARN("Unable to bind to socket (adaptor '%s' (%p)): %d\n", debugstr_a(adapter_addr->AdapterName),
adapter_addr, WSAGetLastError());
closesocket(s);
continue;
}
/* Set the multicast interface and TTL value */
setsockopt(s, IPPROTO_IP, IP_MULTICAST_IF, (char *) &i_addr_zero,
(family == AF_INET6) ? sizeof(struct in6_addr) : sizeof(struct in_addr));
setsockopt(s, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
/* Set up the thread parameters */
send_params = heap_alloc(sizeof(*send_params));
send_params->data = heap_alloc(length);
memcpy(send_params->data, data, length);
send_params->length = length;
send_params->sock = s;
send_params->max_initial_delay = max_initial_delay;
memset(&send_params->dest, 0, sizeof(SOCKADDR_STORAGE));
send_params->dest.ss_family = family;
if (family == AF_INET)
{
SOCKADDR_IN *sockaddr4 = (SOCKADDR_IN *)&send_params->dest;
sockaddr4->sin_port = htons(SEND_PORT);
sockaddr4->sin_addr.S_un.S_addr = htonl(SEND_ADDRESS_IPV4);
}
else
{
SOCKADDR_IN6 *sockaddr6 = (SOCKADDR_IN6 *)&send_params->dest;
sockaddr6->sin6_port = htons(SEND_PORT);
memcpy(&sockaddr6->sin6_addr, &send_address_ipv6, sizeof(send_address_ipv6));
}
thread_handle = CreateThread(NULL, 0, sending_thread, send_params, 0, NULL);
if (thread_handle == NULL)
{
WARN("CreateThread failed (error %d)\n", GetLastError());
closesocket(s);
heap_free(send_params->data);
heap_free(send_params);
continue;
}
CloseHandle(thread_handle);
}
ret = TRUE;
cleanup:
if (adapter_addresses != NULL) heap_free(adapter_addresses);
return ret;
}
BOOL send_udp_multicast(IWSDiscoveryPublisherImpl *impl, char *data, int length, int max_initial_delay)
{
if ((impl->addressFamily & WSDAPI_ADDRESSFAMILY_IPV4) &&
(!send_udp_multicast_of_type(data, length,max_initial_delay, AF_INET))) return FALSE;
if ((impl->addressFamily & WSDAPI_ADDRESSFAMILY_IPV6) &&
(!send_udp_multicast_of_type(data, length, max_initial_delay, AF_INET6))) return FALSE;
return TRUE;
}
void terminate_networking(IWSDiscoveryPublisherImpl *impl)
{
BOOL needsCleanup = impl->publisherStarted;
impl->publisherStarted = FALSE;
if (needsCleanup)
WSACleanup();
}
BOOL init_networking(IWSDiscoveryPublisherImpl *impl)
{
WSADATA wsaData;
int ret = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (ret != 0)
{
WARN("WSAStartup failed with error: %d\n", ret);
return FALSE;
}
impl->publisherStarted = TRUE;
/* TODO: Start listening */
return TRUE;
}

17
dlls/wsdapi/soap.c
View File

@ -27,6 +27,8 @@
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(wsdapi);
#define APP_MAX_DELAY 500
static HRESULT write_and_send_message(IWSDiscoveryPublisherImpl *impl, WSD_SOAP_HEADER *header, WSDXML_ELEMENT *body_element,
@ -34,6 +36,7 @@ static HRESULT write_and_send_message(IWSDiscoveryPublisherImpl *impl, WSD_SOAP_
{
static const char xml_header[] = "<?xml version=\"1.0\" encoding=\"utf-8\"?>";
ULONG xml_header_len = sizeof(xml_header) - 1;
HRESULT ret = E_FAIL;
char *full_xml;
/* TODO: Create SOAP envelope */
@ -47,11 +50,21 @@ static HRESULT write_and_send_message(IWSDiscoveryPublisherImpl *impl, WSD_SOAP_
memcpy(full_xml, xml_header, xml_header_len);
full_xml[xml_header_len] = 0;
/* TODO: Send the message */
if (remote_address == NULL)
{
/* Send the message via UDP multicast */
if (send_udp_multicast(impl, full_xml, sizeof(xml_header), max_initial_delay))
ret = S_OK;
}
else
{
/* TODO: Send the message via UDP unicast */
FIXME("TODO: Send the message via UDP unicast\n");
}
heap_free(full_xml);
return S_OK;
return ret;
}
HRESULT send_hello_message(IWSDiscoveryPublisherImpl *impl, LPCWSTR id, ULONGLONG metadata_ver, ULONGLONG instance_id,

4
dlls/wsdapi/tests/discovery.c
View File

@ -570,7 +570,7 @@ static void Publish_tests(void)
/* Publish the service */
rc = IWSDiscoveryPublisher_Publish(publisher, publisherIdW, 1, 1, 1, NULL, NULL, NULL, NULL);
todo_wine ok(rc == S_OK, "Publish failed: %08x\n", rc);
ok(rc == S_OK, "Publish failed: %08x\n", rc);
/* Wait up to 2 seconds for messages to be received */
if (WaitForMultipleObjects(msgStorage->numThreadHandles, msgStorage->threadHandles, TRUE, 2000) == WAIT_TIMEOUT)
@ -583,7 +583,7 @@ static void Publish_tests(void)
DeleteCriticalSection(&msgStorage->criticalSection);
/* Verify we've received a message */
todo_wine ok(msgStorage->messageCount >= 1, "No messages received\n");
ok(msgStorage->messageCount >= 1, "No messages received\n");
sprintf(endpointReferenceString, "<wsa:EndpointReference><wsa:Address>%s</wsa:Address></wsa:EndpointReference>", publisherId);

6
dlls/wsdapi/wsdapi_internal.h
View File

@ -49,6 +49,12 @@ typedef struct IWSDiscoveryPublisherImpl {
BOOL publisherStarted;
} IWSDiscoveryPublisherImpl;
/* network.c */
BOOL init_networking(IWSDiscoveryPublisherImpl *impl);
void terminate_networking(IWSDiscoveryPublisherImpl *impl);
BOOL send_udp_multicast(IWSDiscoveryPublisherImpl *impl, char *data, int length, int max_initial_delay);
/* soap.c */
HRESULT send_hello_message(IWSDiscoveryPublisherImpl *impl, LPCWSTR id, ULONGLONG metadata_ver, ULONGLONG instance_id,