连接 VMCI 流套接字

Question

我正在尝试使用 VMCI 套接字在虚拟机与其主机之间建立面向流的连接。我成功启动服务器，绑定(bind)地址，将其置于监听模式，并调用accept等待客户端。但是，每当我从客户端调用 connect(...) 时，都会收到 WSAECONNRESET 错误。

我的客户端代码是:

int sockfd;    
WSADATA wsaData;
WORD wVersionRequested = MAKEWORD(2, 2);

// initialize sockets for win32
if (WSAStartup(wVersionRequested, &wsaData) != 0) {
    perror("Could not register with Winsock DLL.\n");
    exit(-1);
}

// get VMCI socket file descriptor
int afVMCI = VMCISock_GetAFValue();
if ((sockfd = socket(afVMCI, SOCK_STREAM, 0)) == -1) {
    perror("socket");
    exit(-1);
}

// initialize server address
struct sockaddr_vm their_addr = {0};
their_addr.svm_family = afVMCI;
their_addr.svm_cid = 2;
their_addr.svm_port = 1234;

// connect to server
if ((connect(sockfd, (struct sockaddr *) &their_addr, sizeof(their_addr))) == -1) {
    int e = WSAGetLastError();
    printf("Error: %d\n", e);
    exit(-1);
}

printf("Connected!\n");

每当我使用数据报套接字时，问题就不会出现。 (当然，无需调用监听、接受和连接。在这种情况下，我只需使用 sendto(...) 即可正常工作。)

Answer 1

来自VMware documentation ，我刚刚发现:

In Workstation 7.0, stream sockets were supported for Linux hosts, Linux guests, and Windows guests, but only datagram sockets were supported for Windows hosts.

由于我的主机运行 Windows，因此不支持此功能。