Changeset 1796 in vbox for trunk/src/VBox/Devices/Network/slirp

Timestamp:

Mar 29, 2007 12:43:54 PM (18 years ago)

Author:

vboxsync

Message:

Commit the code written by Michal (with some minor changes).

Location:

trunk/src/VBox/Devices/Network/slirp

Files:

• ctl.h (modified) (1 diff)
• socket.c (modified) (2 diffs)
• udp.c (modified) (1 diff)

trunk/src/VBox/Devices/Network/slirp/ctl.h

@@ -3 +3 @@
 #define CTL_ALIAS       2
 #define CTL_DNS         3
+#define CTL_BROADCAST   255
 
 #define CTL_SPECIAL     "10.0.2.0"

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

@@ -484 +484 @@
         int ret;
         struct sockaddr_in addr;
+        struct sockaddr_in host_addr;
 
         DEBUG_CALL("sosendto");
@@ -493 +494 @@
           /* It's an alias */
           switch(ntohl(so->so_faddr.s_addr) & 0xff) {
+          case CTL_BROADCAST:
+            addr.sin_addr.s_addr = INADDR_BROADCAST;
+            /* Send the packet to host to fully emulate broadcast */
+            /** @todo r=klaus: on Linux host this causes the host to receive
+             * the packet twice for some reason. And I cannot find any place
+             * in the man pages which states that sending a broadcast does not
+             * reach the host itself. */
+            host_addr.sin_family = AF_INET;
+            host_addr.sin_port = so->so_fport;
+            host_addr.sin_addr = loopback_addr;
+            sendto(so->s, m->m_data, m->m_len, 0,
+                  (struct sockaddr *)&host_addr, sizeof (struct sockaddr));
+            break;
           case CTL_DNS:
             addr.sin_addr = dns_addr;

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

@@ -337 +337 @@
 #endif
     } else {
+      int opt = 1;
       /* success, insert in queue */
       so->so_expire = curtime + SO_EXPIRE;
+      /* enable broadcast for later use */
+      setsockopt(so->s, SOL_SOCKET, SO_BROADCAST, &opt, sizeof(opt));
       insque(pData, so,&udb);
     }