Upstream vwifi v7.0 (Raizo62/vwifi @ 4a9842e)

Unmodified upstream source from https://github.com/Raizo62/vwifi Commit: 4a9842e "CMakeLists.txt : VERSION = 7.0" Simulator of WiFi (802.11) interfaces to communicate between several Virtual Machines via mac80211_hwsim + TCP relay. License: Apache-2.0
2026-03-08 08:19:45 -07:00
commit 92df7a383a
75 changed files with 8628 additions and 0 deletions
@@ -0,0 +1,91 @@
+#include <iostream> // cout
+#include <cstdio> //perror
+#include <cstring> // memset
+#include <assert.h> // assert
+
+#include <arpa/inet.h> // INADDR_ANY
+#include <sys/socket.h>
+#include <linux/vm_sockets.h> // struct sockaddr_vm
+
+#include "csocket.h" // SOCKET_ERROR
+
+#include "csocketserverfunctionvtcp.h"
+
+using namespace std;
+
+bool CSocketServerFunctionVTCP::Configure(TDescriptor& master)
+{
+	//create a master socket
+
+	master = socket(AF_VSOCK , SOCK_STREAM , 0);
+
+	if( master == SOCKET_ERROR )
+	{
+		perror("CSocketServerFunctionVTCP::_Configure : socket");
+		return false;
+	}
+
+	return true;
+}
+
+bool CSocketServerFunctionVTCP::_Listen(TDescriptor& master, TPort port)
+{
+	if( ! Configure(master) )
+	{
+		cerr<<"Error : CSocketServerFunctionVTCP::_Listen : Configure"<<endl;
+		return false;
+	}
+
+	//type of socket created
+	struct sockaddr_vm address;
+	memset(&address, 0, sizeof(address));
+	address.svm_family = AF_VSOCK;
+	address.svm_port = port;
+	address.svm_cid = VMADDR_CID_ANY;
+
+	//bind the socket
+	if (bind(master, (struct sockaddr*)&address, sizeof(address)) != 0)
+	{
+		perror("CSocketServerFunctionVTCP::_Listen : bind");
+		return false;
+	}
+
+	/* Seems useless with VSOCK : the server detects immediately that a client is disconnected
+	struct timeval timeout;
+	timeout.tv_sec = 3;
+	timeout.tv_usec = 0;
+	if (setsockopt (master, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout)) < 0)
+		perror("CSocketServerFunctionVTCP::_Listen : setsockopt : SO_RCVTIMEO\n");
+	if (setsockopt (master, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(timeout)) < 0)
+		perror("CSocketServerFunctionVTCP::_Listen : setsockopt : SO_SNDTIMEO\n");
+	*/
+
+	cout<<"Listener on port : "<<port<<endl;
+	//try to specify maximum of 3 pending connections for the master socket
+	if( listen(master, 3) < 0 )
+	{
+		perror("CSocketServerFunctionVTCP::_Listen : listen");
+		return false;
+	}
+
+	return true;
+}
+
+TDescriptor CSocketServerFunctionVTCP::_Accept(TDescriptor master, TCID& cid)
+{
+	TDescriptor new_socket;
+
+	struct sockaddr_in address;
+	int addrlen = sizeof(address);
+
+	if( (new_socket = accept(master, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < 0 )
+	{
+		perror("CSocketServerFunctionVTCP::_Accept : accept");
+		return SOCKET_ERROR;
+	}
+
+	cid=((struct sockaddr_vm*)&address)->svm_cid;
+
+	return new_socket;
+}
+