along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: route.c,v 1.1.2.13 2001/06/06 19:12:38 guus Exp $
+ $Id: route.c,v 1.1.2.20 2001/10/27 13:13:35 guus Exp $
*/
#include "config.h"
#endif
#include <sys/socket.h>
#include <netinet/in.h>
-#include <net/ethernet.h>
+#ifdef HAVE_SOLARIS
+ #include <net/if.h>
+ #define ETHER_ADDR_LEN 6
+#else
+ #include <net/ethernet.h>
+#endif
#include <netinet/if_ether.h>
#include <utils.h>
#include <xalloc.h>
#include <syslog.h>
+#include <string.h>
#include <avl_tree.h>
#include "net.h"
-#include "net/ethernet.h"
-#include "netinet/if_ether.h"
#include "connection.h"
#include "subnet.h"
#include "route.h"
#include "protocol.h"
+#include "device.h"
#include "system.h"
{
subnet_t *subnet;
avl_node_t *node;
- connection_t *p;
+ connection_t *c;
cp
subnet = lookup_subnet_mac(address);
for(node = connection_tree->head; node; node = node->next)
{
- p = (connection_t *)node->data;
- if(p->status.meta && p->status.active && p!= myself)
- send_add_subnet(p, subnet);
+ c = (connection_t *)node->data;
+ if(c->status.active)
+ send_add_subnet(c, subnet);
}
}
}
-connection_t *route_mac(vpn_packet_t *packet)
+node_t *route_mac(vpn_packet_t *packet)
{
subnet_t *subnet;
cp
return NULL;
}
-connection_t *route_ipv4(vpn_packet_t *packet)
+node_t *route_ipv4(vpn_packet_t *packet)
{
ipv4_t dest;
subnet_t *subnet;
cp
+#ifdef HAVE_SOLARIS
+ /* The other form gives bus errors on a SparcStation 20. */
+ dest = ((packet->data[30] * 0x100 + packet->data[31]) * 0x100 + packet->data[32]) * 0x100 + packet->data[33];
+#else
dest = ntohl(*((unsigned long*)(&packet->data[30])));
-
+#endif
+cp
subnet = lookup_subnet_ipv4(&dest);
-
+cp
if(!subnet)
{
if(debug_lvl >= DEBUG_TRAFFIC)
return subnet->owner;
}
-connection_t *route_ipv6(vpn_packet_t *packet)
+node_t *route_ipv6(vpn_packet_t *packet)
{
+ ipv6_t dest;
+ subnet_t *subnet;
+cp
+ memcpy(&dest, &packet->data[30], sizeof(ipv6_t));
+
+ subnet = lookup_subnet_ipv6(&dest);
cp
- if(debug_lvl > DEBUG_NOTHING)
+ if(!subnet)
{
- syslog(LOG_WARNING, _("Cannot route packet: IPv6 routing not yet implemented"));
- }
+ if(debug_lvl >= DEBUG_TRAFFIC)
+ {
+ syslog(LOG_WARNING, _("Cannot route packet: unknown IPv6 destination address"));
+ }
+
+ return NULL;
+ }
cp
- return NULL;
+ return subnet->owner;
}
void route_arp(vpn_packet_t *packet)
memcpy(arp->arp_sha, packet->data + ETHER_ADDR_LEN, ETHER_ADDR_LEN); /* add fake source hard addr */
arp->arp_op = htons(ARPOP_REPLY);
- accept_packet(packet);
+ write_packet(packet);
cp
}
void route_outgoing(vpn_packet_t *packet)
{
unsigned short int type;
- connection_t *cl;
+ node_t *n;
cp
/* FIXME: multicast? */
switch(type)
{
case 0x0800:
- cl = route_ipv4(packet);
+ n = route_ipv4(packet);
break;
case 0x86DD:
- cl = route_ipv6(packet);
+ n = route_ipv6(packet);
break;
case 0x0806:
route_arp(packet);
}
return;
}
- if(cl)
- send_packet(cl, packet);
+ if(n)
+ send_packet(n, packet);
break;
case RMODE_SWITCH:
- cl = route_mac(packet);
- if(cl)
- send_packet(cl, packet);
+ n = route_mac(packet);
+ if(n)
+ send_packet(n, packet);
else
broadcast_packet(myself, packet);
break;
}
}
-void route_incoming(connection_t *source, vpn_packet_t *packet)
+void route_incoming(node_t *source, vpn_packet_t *packet)
{
switch(routing_mode)
{
case RMODE_ROUTER:
memcpy(packet->data, mymac.net.mac.address.x, 6); /* Override destination address to make the kernel accept it */
+ write_packet(packet);
break;
case RMODE_SWITCH:
- if(packet->data[0] & 0x01) /* Broadcast? */
- broadcast_packet(source, packet); /* If yes, spread it on */
+ {
+ subnet_t *subnet;
+
+ subnet = lookup_subnet_mac((mac_t *)(&packet->data[0]));
+
+ if(subnet)
+ {
+ if(subnet->owner == myself)
+ write_packet(packet);
+ else
+ send_packet(subnet->owner, packet);
+ }
+ else
+ {
+ broadcast_packet(source, packet);
+ write_packet(packet);
+ }
+ }
break;
case RMODE_HUB:
- broadcast_packet(source,packet); /* Spread it on */
+ broadcast_packet(source, packet); /* Spread it on */
+ write_packet(packet);
break;
}
-
- accept_packet(packet);
}