Add argument newmetric to kernel_route.

kernel.c

@@ -546,7 +546,8 @@ kernel_interface_wireless(const char *ifname, int ifindex)
 
 int
 kernel_route(int operation, const unsigned char *dest, unsigned short plen,
-             const unsigned char *gate, int ifindex, unsigned int metric)
+             const unsigned char *gate, int ifindex,
+             unsigned int metric, unsigned int newmetric)
 {
 
     union { char raw[1024]; struct nlmsghdr nh; } buf;

kernel.h

@@ -38,6 +38,7 @@ int kernel_setup_interface(int setup, const char *ifname, int ifindex);
 int kernel_interface_mtu(const char *ifname, int ifindex);
 int kernel_interface_wireless(const char *ifname, int ifindex);
 int kernel_route(int operation, const unsigned char *dest, unsigned short plen,
-                 const unsigned char *gate, int ifindex, unsigned int metric);
+                 const unsigned char *gate, int ifindex,
+                 unsigned int metric, unsigned int newmetric);
 int kernel_routes(int maxplen, struct kernel_route *routes, int maxroutes);
 int kernel_callback(void);

route.c

@@ -180,7 +180,7 @@ install_route(struct route *route)
     rc = kernel_route(ROUTE_ADD, route->dest->address, 128,
                       route->nexthop->address,
                       route->nexthop->network->ifindex,
-                      metric_to_kernel(route->metric));
+                      metric_to_kernel(route->metric), 0);
     if(rc < 0) {
         perror("kernel_route(ADD)");
         if(errno != EEXIST)
@@ -212,7 +212,7 @@ uninstall_route(struct route *route)
     rc = kernel_route(ROUTE_FLUSH, route->dest->address, 128,
                       route->nexthop->address,
                       route->nexthop->network->ifindex,
-                      metric_to_kernel(route->metric));
+                      metric_to_kernel(route->metric), 0);
     if(rc < 0)
         perror("kernel_route(FLUSH)");
     route->installed = 0;

xroute.c

@@ -119,7 +119,7 @@ install_xroute(struct xroute *xroute)
     rc = kernel_route(ROUTE_ADD, xroute->prefix, xroute->plen,
                       gwroute->nexthop->address,
                       gwroute->nexthop->network->ifindex,
-                      metric_to_kernel(xroute->metric));
+                      metric_to_kernel(xroute->metric), 0);
     if(rc < 0) {
         perror("kernel_route(ADD)");
         if(errno != EEXIST)
@@ -148,7 +148,7 @@ uninstall_xroute(struct xroute *xroute)
     rc = kernel_route(ROUTE_FLUSH, xroute->prefix, xroute->plen,
                       gwroute->nexthop->address,
                       gwroute->nexthop->network->ifindex,
-                      metric_to_kernel(xroute->metric));
+                      metric_to_kernel(xroute->metric), 0);
     if(rc < 0)
         perror("kernel_route(FLUSH)");
     xroute->installed = 0;