ws2_32/tests: Add tests for IPv6 control messages.

dlls/ws2_32/tests/sock.c

@@ -155,6 +155,7 @@ static DWORD      thread_id[1+MAX_CLIENTS];
 static HANDLE     server_ready;
 static HANDLE     client_ready[MAX_CLIENTS];
 static int        client_id;
+static GUID       WSARecvMsg_GUID = WSAID_WSARECVMSG;
 
 /**************** General utility functions ***************/
 
@@ -1802,7 +1803,6 @@ static void test_ip_pktinfo(void)
     ULONG addresses[2] = {inet_addr("127.0.0.1"), htonl(INADDR_ANY)};
     char recvbuf[10], pktbuf[512], msg[] = "HELLO";
     struct sockaddr_in s1addr, s2addr, s3addr;
-    GUID WSARecvMsg_GUID = WSAID_WSARECVMSG;
     LPFN_WSARECVMSG pWSARecvMsg = NULL;
     unsigned int rc, yes = 1;
     BOOL foundhdr;
@@ -1990,6 +1990,104 @@ static void test_ip_pktinfo(void)
     CloseHandle(ov.hEvent);
 }
 
+static void test_ipv6_cmsg(void)
+{
+    static const DWORD off = 0;
+    static const DWORD on = 1;
+    SOCKADDR_IN6 localhost = {0};
+    SOCKET client, server;
+    char payload[] = "HELLO";
+    char control[100];
+    WSABUF payload_buf = {sizeof(payload), payload};
+    WSAMSG msg = {NULL, 0, &payload_buf, 1, {sizeof(control), control}, 0};
+    WSACMSGHDR *header = (WSACMSGHDR *)control;
+    LPFN_WSARECVMSG pWSARecvMsg;
+    INT *hop_limit = (INT *)WSA_CMSG_DATA(header);
+    IN6_PKTINFO *pkt_info = (IN6_PKTINFO *)WSA_CMSG_DATA(header);
+    DWORD count, state;
+    int rc;
+
+    localhost.sin6_family = AF_INET6;
+    localhost.sin6_port = htons(SERVERPORT);
+    inet_pton(AF_INET6, "::1", &localhost.sin6_addr);
+
+    client = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+    ok(client != INVALID_SOCKET, "failed to create socket, error %u\n", WSAGetLastError());
+    server = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+    ok(server != INVALID_SOCKET, "failed to create socket, error %u\n", WSAGetLastError());
+
+    rc = bind(server, (SOCKADDR *)&localhost, sizeof(localhost));
+    ok(rc != SOCKET_ERROR, "bind failed, error %u\n", WSAGetLastError());
+    rc = connect(client, (SOCKADDR *)&localhost, sizeof(localhost));
+    ok(rc != SOCKET_ERROR, "connect failed, error %u\n", WSAGetLastError());
+
+    rc = WSAIoctl(server, SIO_GET_EXTENSION_FUNCTION_POINTER, &WSARecvMsg_GUID, sizeof(WSARecvMsg_GUID),
+                  &pWSARecvMsg, sizeof(pWSARecvMsg), &count, NULL, NULL);
+    ok(!rc, "failed to get WSARecvMsg, error %u\n", WSAGetLastError());
+
+    memset(control, 0, sizeof(control));
+    msg.Control.len = sizeof(control);
+    rc = setsockopt(server, IPPROTO_IPV6, IPV6_HOPLIMIT, (const char *)&on, sizeof(on));
+todo_wine
+    ok(!rc, "failed to set IPV6_HOPLIMIT, error %u\n", WSAGetLastError());
+    state = 0;
+    count = sizeof(state);
+    rc = getsockopt(server, IPPROTO_IPV6, IPV6_HOPLIMIT, (char *)&state, (INT *)&count);
+todo_wine
+    ok(!rc, "failed to get IPV6_HOPLIMIT, error %u\n", WSAGetLastError());
+todo_wine
+    ok(state == 1, "expected 1, got %u\n", state);
+    rc = send(client, payload, sizeof(payload), 0);
+    ok(rc == sizeof(payload), "send failed, error %u\n", WSAGetLastError());
+    rc = pWSARecvMsg(server, &msg, &count, NULL, NULL);
+    ok(!rc, "WSARecvMsg failed, error %u\n", WSAGetLastError());
+    ok(count == sizeof(payload), "expected length %i, got %i\n", (INT)sizeof(payload), count);
+todo_wine
+    ok(header->cmsg_level == IPPROTO_IPV6, "expected IPPROTO_IPV6, got %i\n", header->cmsg_level);
+todo_wine
+    ok(header->cmsg_type == IPV6_HOPLIMIT, "expected IPV6_HOPLIMIT, got %i\n", header->cmsg_type);
+todo_wine
+    ok(header->cmsg_len == sizeof(*header) + sizeof(INT),
+       "expected length %i, got %i\n", (INT)(sizeof(*header) + sizeof(INT)), (INT)header->cmsg_len);
+todo_wine
+    ok(*hop_limit >= 32, "expected at least 32, got %i\n", *hop_limit);
+    setsockopt(server, IPPROTO_IPV6, IPV6_HOPLIMIT, (const char *)&off, sizeof(off));
+    ok(!rc, "failed to clear IPV6_HOPLIMIT, error %u\n", WSAGetLastError());
+
+    memset(control, 0, sizeof(control));
+    msg.Control.len = sizeof(control);
+    rc = setsockopt(server, IPPROTO_IPV6, IPV6_PKTINFO, (const char *)&on, sizeof(on));
+todo_wine
+    ok(!rc, "failed to set IPV6_PKTINFO, error %u\n", WSAGetLastError());
+    state = 0;
+    count = sizeof(state);
+    rc = getsockopt(server, IPPROTO_IPV6, IPV6_PKTINFO, (char *)&state, (INT *)&count);
+todo_wine
+    ok(!rc, "failed to get IPV6_PKTINFO, error %u\n", WSAGetLastError());
+todo_wine
+    ok(state == 1, "expected 1, got %u\n", state);
+    rc = send(client, payload, sizeof(payload), 0);
+    ok(rc == sizeof(payload), "send failed, error %u\n", WSAGetLastError());
+    rc = pWSARecvMsg(server, &msg, &count, NULL, NULL);
+    ok(!rc, "WSARecvMsg failed, error %u\n", WSAGetLastError());
+    ok(count == sizeof(payload), "expected length %i, got %i\n", (INT)sizeof(payload), count);
+todo_wine
+    ok(header->cmsg_level == IPPROTO_IPV6, "expected IPPROTO_IPV6, got %i\n", header->cmsg_level);
+todo_wine
+    ok(header->cmsg_type == IPV6_PKTINFO, "expected IPV6_PKTINFO, got %i\n", header->cmsg_type);
+todo_wine
+    ok(header->cmsg_len == sizeof(*header) + sizeof(IN6_PKTINFO),
+       "expected length %i, got %i\n", (INT)(sizeof(*header) + sizeof(IN6_PKTINFO)), (INT)header->cmsg_len);
+todo_wine
+    ok(!memcmp(&pkt_info->ipi6_addr, &localhost.sin6_addr, sizeof(IN6_ADDR)), "expected ::1\n");
+    rc = setsockopt(server, IPPROTO_IPV6, IPV6_PKTINFO, (const char *)&off, sizeof(off));
+todo_wine
+    ok(!rc, "failed to clear IPV6_PKTINFO, error %u\n", WSAGetLastError());
+
+    closesocket(server);
+    closesocket(client);
+}
+
 /************* Array containing the tests to run **********/
 
 #define STD_STREAM_SOCKET \
@@ -11385,6 +11483,7 @@ START_TEST( sock )
     test_set_getsockopt();
     test_so_reuseaddr();
     test_ip_pktinfo();
+    test_ipv6_cmsg();
     test_extendedSocketOptions();
     test_so_debug();
     test_set_only_options();