Changeset 50045 in vbox for trunk/src/VBox/Devices/Network

Timestamp:

Jan 10, 2014 1:50:27 AM (11 years ago)

Author:

vboxsync

Message:

NAT/Slirp: helper function slirp_host_network_configuration_change_strategy_selector reporting the hint for client (DrvNAT) which strategy to select on Host network change event or Host resume.

Location:

trunk/src/VBox/Devices/Network/slirp

Files:

• libslirp.h (modified) (1 diff)
• slirp.c (modified) (1 diff)

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

@@ -96 +96 @@
 void slirp_set_somaxconn(PNATState pData, int iSoMaxConn);
 
+/**
+ * This method help DrvNAT to select strategy: about VMRESUMEREASON_HOST_RESUME:
+ * - proceed with link termination (we let guest track host DNS settings)
+ *    VBOX_NAT_HNCE_EXPOSED_NAME_RESOLVING_INFO
+ * - enforce internal DNS update (we are using dnsproxy and track but don't export DNS host settings)
+ *    VBOX_NAT_HNCE_DNSPROXY
+ * - ignore (NAT configured to use hostresolver - we aren't track any host DNS changes)
+ *    VBOX_NAT_HNCE_HOSTRESOLVER
+ * @note: It's safe to call this method from any thread, because settings we're checking 
+ * are immutable at runtime.
+ */
+#define VBOX_NAT_HNCE_EXSPOSED_NAME_RESOLUTION_INFO 0
+#define VBOX_NAT_HNCE_DNSPROXY 1
+#define VBOX_NAT_HNCE_HOSTRESOLVER 2
+int slirp_host_network_configuration_change_strategy_selector(const PNATState);
 #if defined(RT_OS_WINDOWS)
 

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

@@ -2033 +2033 @@
     }
 }
+
+
+int slirp_host_network_configuration_change_strategy_selector(const PNATState pData)
+{
+    if (pData->fUseHostResolver) return VBOX_NAT_HNCE_HOSTRESOLVER;
+    if (pData->fUseDnsProxy) return VBOX_NAT_HNCE_DNSPROXY;
+    return VBOX_NAT_HNCE_EXSPOSED_NAME_RESOLUTION_INFO;
+}