Update of /cvsroot/dhcp-agent/dhcp-agent
In directory usw-pr-cvs1:/tmp/cvs-serv24213
Added Files:
dhcp-route.c
Log Message:
forgot to add the new route code
--- NEW FILE: dhcp-route.c ---
/* $Header: /cvsroot/dhcp-agent/dhcp-agent/dhcp-route.c,v 1.1 2002/05/19 18:47:23 actmodern Exp $
*
* Copyright 2001 Thamer Alharbash <tm...@wh...>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Routing manipulation:
*
* Here we can add/delete routes, and lookup routes. We return
* mac addresses so packets can be sent out to the right MAC
* address.
*
*/
#include <dhcp-agent.h>
int route_find(rawnet_t *net, ip_addr_t addr, eth_addr_t *dest_mac)
{
route_t *rt;
struct route_entry entry;
rt = route_open();
if(rt == NULL) {
fatal_error("could not open routing table: %s", strerror(errno));
exit(1);
}
memset(&entry.route_dst, 0, sizeof(entry.route_dst));
memset(&entry.route_gw, 0, sizeof(entry.route_gw));
entry.route_dst.addr_type = ADDR_TYPE_IP;
entry.route_dst.addr_bits = 0;
entry.route_dst.addr_ip = addr;
if(route_get(rt, &entry)) {
/* not in routing table. do an arp for it then. */
return(arp_discover_hardware_address(net, 3, entry.route_dst.addr_ip, dest_mac));
}
route_close(rt);
/* arp for gateway address. */
return(arp_discover_hardware_address(net, 3, entry.route_gw.addr_ip, dest_mac));
}
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