无法连接到本机本地套接字在Android 5.1

我有commad-line工具，它发送广播和等待结果。无法连接到本机本地套接字在Android 5.1

Server代码（省略处理错误）：

int makeAddr(const char* name, struct sockaddr_un* pAddr, socklen_t* pSockLen) 
    { 
     int nameLen = strlen(name); 
     pAddr->sun_path[0] = '\0'; 
     strcpy(pAddr->sun_path+1, name); 
     pAddr->sun_family = AF_LOCAL; 
     *pSockLen = 1 + nameLen + offsetof(struct sockaddr_un, sun_path); 
     return 0; 
    } 

    int main(int argc, char* argv[]) 
    { 
     //... 

     // Create socket in abstract namespace 
     struct sockaddr_un sockAddr = {0}; 
     socklen_t sockLen; 
     makeAddr("SOCKET_NAME", &sockAddr, &sockLen); 

     int serverFd = socket(AF_LOCAL, SOCK_STREAM, PF_UNIX)); 

     bind(serverFd, (const struct sockaddr*) &sockAddr, sockLen); 

     listen(serverFd, 5); 

     //set socket non-blocking 
     int flags = fcntl(serverFd, F_GETFL, 0); 
     fcntl(serverFd, F_SETFL, flags | O_NONBLOCK); 

     pollfd pollFd = {0}; 
     pollFd.fd = serverFd; 
     pollFd.events = POLLIN | POLLRDHUP; 

     // Send brodcast 
     system("am broadcast ..."); 

     for(;;) 
     { 
      // Wait result 
      int pollResult = poll(&pollFd, 1, timeout); 
     // Process result

Java客户端代码：

public class CommandReceiver extends BroadcastReceiver{ 

    @Override 
    public void onReceive(Context context, Intent intent) { 

      LocalSocket socket = new LocalSocket(); 
      LocalSocketAddress address = new LocalSocketAddress("SOCKET_NAME", LocalSocketAddress.Namespace.ABSTRACT); 
      socket.connect(address); 

      // Do something and send result asynchronously

它所有的作品在Android 5.1之前。

在Android 5.1连接（）抛出异常：

java.io.IOException: Permission denied

at android.net.LocalSocketImpl.connectLocal(Native Method)

at android.net.LocalSocketImpl.connect(LocalSocketImpl.java:290)

at android.net.LocalSocket.connect(LocalSocket.java:130)

在日志中出现错误：

07-27 09:56:08.179: W: type=1400 audit(0.0:3675): avc: denied { connectto } for path=00636F6D2E6B6173706572736B792E6B617368656C6C2E534F434B45542D36313838363731373231343337393833373637 scontext=u:r:untrusted_app:s0 tcontext=u:r:shell:s0 tclass=unix_stream_socket permissive=0

我找到了相对的android修复： https://android.googlesource.com/device/moto/shamu/+/b2db40f

所以，从android 5.1开始不再工作了？我能做什么（或许设置许可）？还是有另一种机制从本地命令行工具发送数据和等待结果？

来源

2015-06-26 Fox

使用管道，而不是插座： O_RDWR on named pipes with poll()

Java创建工艺管道：

 mkfifo(cpath, 0); 
     chmod(cpath, S_IRWXU|S_IROTH|S_IRGRP);

开管在本机进程：

int serverFd = open(PIPE_NAME, O_RDONLY | O_NONBLOCK); 
pollfd pollFd = {0}; 
pollFd.fd = serverFd.get(); 
pollFd.events = POLLIN | POLLRDHUP; 

// send command 
.... 

for(;;) 
{ 
    int pollResult = poll(&pollFd, 1, timeout);

来源

2015-08-18 10:39:19 Fox

无法连接到本机本地套接字在Android 5.1

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