some cleanup in ethernet constants

sending back an ARP packet
rtl8139: started to implement write (work in progress)

1 files changed, 15 insertions, 3 deletions

diff --git a/src/kernel/kernel.c b/src/kernel/kernel.c
index 460cb74..0b10f45 100644
--- a/src/kernel/kernel.c
+++ b/src/kernel/kernel.c
@@ -456,7 +456,8 @@ void __stack_chk_fail( void )
 
 void handle_network_event( network_event_t *event, void *context )
 {
-	network_ethernet_packet_t *packet = (network_ethernet_packet_t *)event->data;
+	network_ethernet_packet_t *packet = (network_ethernet_packet_t *)event->buf.data;
+	network_t *network = (network_t *)context;
 	
 	char src_mac_addr[NETWORK_ETHERNET_MAC_ADDR_STRING];
 	char dst_mac_addr[NETWORK_ETHERNET_MAC_ADDR_STRING];
@@ -464,7 +465,7 @@ void handle_network_event( network_event_t *event, void *context )
 	network_mac_address_to_string( packet->header.dst_addr, dst_mac_addr, NETWORK_ETHERNET_MAC_ADDR_STRING );
 	printf( "NETWORK DATA: src: %s, dst: %s, len: %d, type: %X\n",
 		src_mac_addr, dst_mac_addr,
-		event->length,
+		event->buf.length,
 		packet->header.type );
 	
 	if( packet->header.type == NETWORK_ETHER_PROTOCOL_TYPE_ARP ) {		
@@ -479,8 +480,19 @@ void handle_network_event( network_event_t *event, void *context )
 
 		printf( "ARP: hw src: %s, dst: %s, ip src: %s, dst: %s, oper: %d\n",
 			src_mac_addr, dst_mac_addr, src_ip, dst_ip, arp->operation );
+
+		// TODO: remember the address mapping
+		
+		// send answer
+		packet->header.dst_addr = arp->source_hardware_address;
+		packet->header.src_addr = global_context.network->mac_address;
+		arp->operation = ARP_OPERATION_ANSWER;
+		arp->destination_hardware_address = arp->source_hardware_address;
+		arp->source_hardware_address = global_context.network->mac_address;
+				
+		((network_vtable_t *)( global_context.network->base.vtable ))->write( global_context.network, event->buf );
 	}
 	
 	// we must free the data if we no longer need it
-	free( event->data );
+	free( event->buf.data );
 }