1 files changed, 0 insertions, 144 deletions
diff --git a/getroute.c b/getroute.c
deleted file mode 100644
index a615a4f..0000000
--- a/getroute.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright 2012 Daniel Drown
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * getroute.c - get an ip route
- */
-#include <string.h>
-#include <errno.h>
-
-#include <sys/socket.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <arpa/inet.h>
-
-#include <netlink/handlers.h>
-#include <netlink/msg.h>
-
-#include "getroute.h"
-#include "netlink_callbacks.h"
-#include "netlink_msg.h"
-
-/* function: get_default_route_cb
- * finds the default route with the request family and out interface and saves the gateway
- * msg  - netlink message
- * data - (struct default_route_data) requested filters and response storage
- */
-static int get_default_route_cb(struct nl_msg *msg, void *data) {
-  struct rtmsg *rt_p;
-  struct rtattr *rta_p;
-  int rta_len;
-  struct default_route_data *default_route = data;
-  union anyip *this_gateway = NULL;
-  ssize_t this_gateway_size;
-  int this_interface_id = -1;
-
-  if(default_route->reply_found_route) { // we already found our route
-    return NL_OK;
-  }
-
-  rt_p = (struct rtmsg *)nlmsg_data(nlmsg_hdr(msg));
-  if(rt_p->rtm_dst_len != 0) { // not a default route
-    return NL_OK;
-  }
-  if((rt_p->rtm_family != default_route->request_family) || (rt_p->rtm_table != RT_TABLE_MAIN)) { // not a route we care about
-    return NL_OK;
-  }
-
-  rta_p = (struct rtattr *)RTM_RTA(rt_p);
-  rta_len = RTM_PAYLOAD(nlmsg_hdr(msg));
-  for(; RTA_OK(rta_p, rta_len); rta_p = RTA_NEXT(rta_p, rta_len)) {
-    switch(rta_p->rta_type) {
-      case RTA_GATEWAY:
-        this_gateway = RTA_DATA(rta_p);
-        this_gateway_size = RTA_PAYLOAD(rta_p);
-        break;
-      case RTA_OIF:
-        this_interface_id = *(int *)RTA_DATA(rta_p);
-        break;
-      default:
-        break;
-    }
-  }
-
-  if(this_interface_id == default_route->request_interface_id) {
-    default_route->reply_found_route = 1;
-    if(this_gateway != NULL) {
-      memcpy(&default_route->reply_gateway, this_gateway, this_gateway_size);
-      default_route->reply_has_gateway = 1;
-    } else {
-      default_route->reply_has_gateway = 0;
-    }
-  }
-  return NL_OK;
-}
-
-/* function: error_handler
- * error callback for get_default_route
- * nla  - where the message came from
- * err  - netlink message
- * arg  - (int *) storage for the error number
- */
-static int error_handler(__attribute__((unused)) struct sockaddr_nl *nla,
-                         struct nlmsgerr *err, void *arg) {
-  int *retval = arg;
-  if(err->error < 0) { // error_handler called even on no error (NLMSG_ERROR reply type used)
-    *retval = err->error;
-  }
-  return NL_OK;
-}
-
-/* function: get_default_route
- * finds the first default route with the given family and interface, returns the gateway (if it exists) in the struct
- * default_route - requested family and interface, and response storage
- */
-int get_default_route(struct default_route_data *default_route) {
-  struct rtmsg msg;
-  struct nl_cb *callbacks = NULL;
-  struct nl_msg *nlmsg = NULL;
-  int retval = 0;
-
-  default_route->reply_has_gateway = 0;
-  default_route->reply_found_route = 0;
-
-  memset(&msg,'\0',sizeof(msg));
-  msg.rtm_family = default_route->request_family;
-  msg.rtm_table = RT_TABLE_MAIN;
-  msg.rtm_protocol = RTPROT_KERNEL;
-  msg.rtm_scope = RT_SCOPE_UNIVERSE;
-
-  callbacks = nl_cb_alloc(NL_CB_DEFAULT);
-  if(!callbacks) {
-    retval = -ENOMEM;
-    goto cleanup;
-  }
-  // get_default_route_cb sets the response fields in default_route
-  nl_cb_set(callbacks, NL_CB_VALID, NL_CB_CUSTOM, get_default_route_cb, default_route);
-  nl_cb_err(callbacks, NL_CB_CUSTOM, error_handler, &retval);
-
-  nlmsg = nlmsg_alloc_rtmsg(RTM_GETROUTE, NLM_F_REQUEST | NLM_F_ROOT, &msg);
-  if(!nlmsg) {
-    retval = -ENOMEM;
-    goto cleanup;
-  }
-  send_netlink_msg(nlmsg, callbacks);
-
-cleanup:
-  if(callbacks)
-    nl_cb_put(callbacks);
-  if(nlmsg)
-    nlmsg_free(nlmsg);
-
-  return retval;
-}