Changeset 16529 in vbox for trunk/src/VBox/Devices/Network/slirp/tcp_subr.c

Timestamp:

Feb 5, 2009 3:35:30 PM (16 years ago)

Author:

vboxsync

Message:

NAT:port-forwarding: Default value for SND/RCV buffers increased 4x

File:

• trunk/src/VBox/Devices/Network/slirp/tcp_subr.c (modified) (2 diffs)

trunk/src/VBox/Devices/Network/slirp/tcp_subr.c

@@ -450 +450 @@
     socklen_t addrlen = sizeof(struct sockaddr_in);
     struct tcpcb *tp;
-    int s, opt;
+    int s, opt, optlen, status;
 
     DEBUG_CALL("tcp_connect");
@@ -496 +496 @@
     setsockopt(s,IPPROTO_TCP,TCP_NODELAY,(char *)&opt,sizeof(int));
 
+    optlen = sizeof(int);
+    status = getsockopt(s, SOL_SOCKET, SO_RCVBUF, &opt, &optlen);
+    if (status < 0) 
+    {
+        LogRel(("Error(%d) while getting RCV capacity\n", errno));
+        goto no_sockopt;
+    }
+    opt *= 4;
+    status = setsockopt(s, SOL_SOCKET, SO_RCVBUF, &opt, optlen); 
+    if (status < 0) 
+    {
+        LogRel(("Error(%d) while setting RCV capacity to (%d)\n", errno, opt));
+        goto no_sockopt;
+    }
+    status = getsockopt(s, SOL_SOCKET, SO_SNDBUF, &opt, &optlen);
+    if (status < 0) 
+    {
+        LogRel(("Error(%d) while getting SND capacity\n", errno));
+        goto no_sockopt;
+    }
+    opt *= 4;
+    status = setsockopt(s, SOL_SOCKET, SO_SNDBUF, &opt, optlen); 
+    if (status < 0) 
+    {
+        LogRel(("Error(%d) while setting SND capacity to (%d)\n", errno, opt));
+        goto no_sockopt;
+    }
+
+    no_sockopt:
     so->so_fport = addr.sin_port;
     so->so_faddr = addr.sin_addr;