static int del_route(const struct zone *zone, const struct babel_route *route) { int table = find_table(zone->dst_prefix, zone->dst_plen, zone->src_prefix, zone->src_plen); return kernel_route(ROUTE_FLUSH, table, zone->dst_prefix, zone->dst_plen, zone->src_prefix, zone->src_plen, route->nexthop, route->neigh->ifp->ifindex, metric_to_kernel(route_metric(route)), NULL, 0, 0, 0); }
void uninstall_route(struct babel_route *route) { int rc; if(!route->installed) return; rc = kernel_route(ROUTE_FLUSH, route->src->prefix, route->src->plen, route->nexthop, route->neigh->ifp->ifindex, metric_to_kernel(route_metric(route)), NULL, 0, 0); if(rc < 0) flog_err(EC_BABEL_ROUTE, "kernel_route(FLUSH): %s", safe_strerror(errno)); route->installed = 0; }
void uninstall_route(struct route *route) { int rc; if(!route->installed) return; rc = kernel_route(ROUTE_FLUSH, route->src->prefix, route->src->plen, route->nexthop, route->neigh->ifp->ifindex, metric_to_kernel(route_metric(route)), NULL, 0, 0); if(rc < 0) perror("kernel_route(FLUSH)"); route->installed = 0; local_notify_route(route, LOCAL_CHANGE); }
void install_route(struct babel_route *route) { int i, rc; if(route->installed) return; if(!route_feasible(route)) flog_err(EC_BABEL_ROUTE, "WARNING: installing unfeasible route " "(this shouldn't happen)."); i = find_route_slot(route->src->prefix, route->src->plen, NULL); assert(i >= 0 && i < route_slots); if(routes[i] != route && routes[i]->installed) { flog_err(EC_BABEL_ROUTE, "WARNING: attempting to install duplicate route " "(this shouldn't happen)."); return; } rc = kernel_route(ROUTE_ADD, route->src->prefix, route->src->plen, route->nexthop, route->neigh->ifp->ifindex, metric_to_kernel(route_metric(route)), NULL, 0, 0); if(rc < 0) { int save = errno; flog_err(EC_BABEL_ROUTE, "kernel_route(ADD): %s", safe_strerror(errno)); if(save != EEXIST) return; } route->installed = 1; move_installed_route(route, i); }
void install_route(struct route *route) { int i, rc; if(route->installed) return; if(!route_feasible(route)) fprintf(stderr, "WARNING: installing unfeasible route " "(this shouldn't happen)."); i = find_route_slot(route->src->prefix, route->src->plen, NULL); assert(i >= 0 && i < route_slots); if(routes[i] != route && routes[i]->installed) { fprintf(stderr, "WARNING: attempting to install duplicate route " "(this shouldn't happen)."); return; } rc = kernel_route(ROUTE_ADD, route->src->prefix, route->src->plen, route->nexthop, route->neigh->ifp->ifindex, metric_to_kernel(route_metric(route)), NULL, 0, 0); if(rc < 0) { int save = errno; perror("kernel_route(ADD)"); if(save != EEXIST) return; } route->installed = 1; move_installed_route(route, i); local_notify_route(route, LOCAL_CHANGE); }