ipwin: add command to show ipv6 default route

ip: support to show ipv6 default route

windows/ipwin/ipwin/ipwin.cpp

@@ -56,7 +56,7 @@ HRESULT SlaposNetCfgGetNetworkConnectionName(IN LPCWSTR pGUID,
                                              OUT BSTR *pName,
                                              OUT BSTR *pErrMsg
                                              );
-HRESULT SlaposIPv6ShowRoute(int verbose);
+HRESULT SlaposIPv6ShowRoute(int mode);
 
 void Usage()
 {
@@ -109,6 +109,9 @@ Available command:\n\
 \n\
   Print IPv6 route information:\n\
   ipwin ipv6 show route\n\
+\n\
+  Print IPv6 default route information:\n\
+  ipwin ipv6 show route default\n\
 \n\
 \n\
 Exit status:\n\
@@ -344,7 +347,12 @@ int _tmain(int argc, TCHAR * argv[])
       Usage();
       hr = E_FAIL;
     }
+    else if (argc == 5) {
+      // Only show default route
+      hr = SlaposIPv6ShowRoute(0);
+    }
     else {
+      // Show all ipv6 route
       hr = SlaposIPv6ShowRoute(1);
     }
   }

windows/ipwin/ipwin/netcfg.cpp

@@ -1364,7 +1364,7 @@ HRESULT SlaposNetCfgGetNetworkConnectionName(IN LPCWSTR pGUID,
   return hrc;
 }
 
-HRESULT SlaposIPv6ShowRoute(int verbose)
+HRESULT SlaposIPv6ShowRoute(int mode)
 {
   int i;
   ULONG NumEntries = -1;
@@ -1398,11 +1398,23 @@ HRESULT SlaposIPv6ShowRoute(int verbose)
                 200
                 );
       if_indextoname(pRow2 -> InterfaceIndex, ifname);
+      if (mode == 1) {
         printf("Prefix       : %s/%d\n", prefix, (pRow2 -> DestinationPrefix).PrefixLength);
         printf("Interface %d : %s\n", (unsigned int)(pRow2 -> InterfaceIndex), ifname);
         printf("Gateway      : %s\n", gateway);
         printf("\n");
       }
+      else if (mode == 0) {
+        // Print default route
+        if (IN6_IS_ADDR_UNSPECIFIED(&((pRow2 -> DestinationPrefix).Prefix.Ipv6.sin6_addr)))
+          printf("default    proto %d metric %d mtu %s advmss %s\n",
+                 pRow2 -> Protocol,
+                 pRow2 -> Metric,
+                 "unknown",
+                 "unknown"
+                 );
+      }
+    }
     FreeMibTable(pIpForwardTable2);
     return S_OK;
   }

windows/scripts/ip

@@ -581,6 +581,9 @@ elif [[ $object == "route" ]] ; then
     if [[ $command != "show" ]] ; then
         prefix=$1
         shift
+    elif [[ "$1" == "default" ]] ; then
+        ipwin ipv6 show route default
+        exit $?
     fi
 
     while [[ "$1" != "" ]] ; do