static void
test_packet_type_ether() {
buffer *buf = alloc_buffer_with_length( sizeof( struct iphdr ) );
calloc_packet_info( buf );
assert_false( packet_type_ether( buf ) );
packet_info *packet_info = buf->user_data;
packet_info->format |= ETH_DIX;
assert_true( packet_type_ether( buf ) );
packet_info->format = 0;
packet_info->format |= ETH_8023_RAW;
assert_true( packet_type_ether( buf ) );
packet_info->format = 0;
packet_info->format |= ETH_8023_LLC;
assert_true( packet_type_ether( buf ) );
packet_info->format = 0;
packet_info->format |= ETH_8023_SNAP;
assert_true( packet_type_ether( buf ) );
packet_info->format = 0;
free_buffer( buf );
}
static void
handle_packet_in( uint64_t datapath_id, packet_in message ) {
if ( !packet_type_ether( message.data ) ) {
return;
}
struct key new_key;
packet_info packet_info = get_packet_info( message.data );
memcpy( new_key.mac, packet_info.eth_macsa, OFP_ETH_ALEN );
new_key.datapath_id = datapath_id;
hash_table *forwarding_db = message.user_data;
learn( forwarding_db, new_key, message.in_port );
struct key search_key;
memcpy( search_key.mac, packet_info.eth_macda, OFP_ETH_ALEN );
search_key.datapath_id = datapath_id;
forwarding_entry *destination = lookup_hash_entry( forwarding_db, &search_key );
if ( destination == NULL ) {
do_flooding( message );
}
else {
send_packet( destination->port_no, message );
}
}
static void
handle_packet_in( uint64_t datapath_id, packet_in message ) {
info("got packet to handle");
if ( message.data == NULL ) {
error( "data must not be NULL" );
return;
}
if ( !packet_type_ether( message.data ) ) {
return;
}
uint32_t in_port = get_in_port_from_oxm_matches( message.match );
if ( in_port == 0 ) {
return;
}
info("got a packet to handle from, %d",datapath_id);
/*
info("sending third config");
oxm_matches *match4 = create_oxm_matches();
append_oxm_match_eth_type( match4, 0x8847);
// append_oxm_match_mpls_label(match4, 4120955);
openflow_actions *actions4 = create_actions();
append_action_pop_mpls(actions4, 0x0800);
append_action_output( actions4, OFPP_ALL, OFPCML_NO_BUFFER );
openflow_instructions *insts4 = create_instructions();
append_instructions_apply_actions( insts4, actions4 );
buffer *flow_mod4 = create_flow_mod(
get_transaction_id(),
get_cookie(),
0,
0,
OFPFC_ADD,
0,
0,
OFP_HIGH_PRIORITY,
OFP_NO_BUFFER,
0,
0,
OFPFF_SEND_FLOW_REM,
match4,
insts4
);
send_openflow_message( datapath_id, flow_mod4);
free_buffer( flow_mod4 );
delete_oxm_matches( match4 );
delete_instructions( insts4 );
info("done sending");
*/
}
