// FIXME: Copy & Paste from hello_switch.c
static void
handle_hello( uint32_t xid, uint8_t version, void *user_data ) {
UNUSED( version );
UNUSED( user_data );
switch_send_openflow_message( create_hello( xid ) );
}
static VALUE
switch_send_message( VALUE self, VALUE message ) {
buffer *buf;
Data_Get_Struct( message, buffer, buf );
switch_send_openflow_message( buf );
return self;
}
static void
_handle_barrier_request( uint32_t transaction_id, void *user_data ) {
UNUSED( user_data );
buffer *barrier_reply = create_barrier_reply( transaction_id );
switch_send_openflow_message( barrier_reply );
free_buffer( barrier_reply );
}
static void
_handle_echo_request( const uint32_t transaction_id, const buffer *body, void *user_data ) {
UNUSED( user_data );
buffer *echo_reply = create_echo_reply( transaction_id, body );
switch_send_openflow_message( echo_reply );
free_buffer( echo_reply );
}
static void
handle_echo_request( uint32_t xid, const buffer *body, void *user_data ) {
UNUSED( body );
UNUSED( user_data );
info( "received: OFPT_ECHO_REQUEST" );
switch_send_openflow_message( create_echo_reply( xid, NULL ) );
}
static void
_handle_hello( const uint32_t transaction_id, const uint8_t version, const buffer *version_data, void *user_data ) {
UNUSED( user_data );
debug( "Hello received ( transaction_id = %#x, version = %#x ).", transaction_id, version );
struct ofp_hello_elem_versionbitmap *versionbitmap = ( struct ofp_hello_elem_versionbitmap * ) version_data->data;
const uint32_t ofp_versions[ 1 ] = { OFP_VERSION };
uint32_t bitmap = versionbitmap->bitmaps[ 0 ];
if ( ( bitmap & ( ( uint32_t ) 1 << ofp_versions[ 0 ] ) ) != ( ( uint32_t ) ofp_versions[ 0 ] ) ) {
buffer *hello_buf = create_hello_elem_versionbitmap( transaction_id, ofp_versions,
sizeof( ofp_versions ) / sizeof( ofp_versions[ 0 ] ) );
switch_send_openflow_message( hello_buf );
free_buffer( hello_buf );
} else {
send_error_message( transaction_id, OFPET_HELLO_FAILED, OFPHFC_INCOMPATIBLE );
}
}
static void
_handle_get_config_request( const uint32_t transaction_id, void * user_data ) {
UNUSED( user_data );
switch_config config;
memset( &config, 0, sizeof( switch_config ) );
OFDPE ret = get_switch_config( &config );
if ( ret != OFDPE_SUCCESS ) {
uint16_t type = OFPET_BAD_REQUEST;
uint16_t code = OFPBRC_EPERM;
get_ofp_error( ret, &type, &code );
send_error_message( transaction_id, type, code );
}
buffer *get_config_reply = create_get_config_reply( transaction_id, config.flags, config.miss_send_len );
switch_send_openflow_message( get_config_reply );
free_buffer( get_config_reply );
}
// FIXME: Copy & Paste from hello_switch.c
static void
handle_features_request( uint32_t xid, void *user_data ) {
UNUSED( user_data );
uint32_t supported = ( ( 1 << OFPAT_OUTPUT ) |
( 1 << OFPAT_SET_VLAN_VID ) |
( 1 << OFPAT_SET_VLAN_PCP ) |
( 1 << OFPAT_STRIP_VLAN ) |
( 1 << OFPAT_SET_DL_SRC ) |
( 1 << OFPAT_SET_DL_DST ) |
( 1 << OFPAT_SET_NW_SRC ) |
( 1 << OFPAT_SET_NW_DST ) |
( 1 << OFPAT_SET_NW_TOS ) |
( 1 << OFPAT_SET_TP_SRC ) |
( 1 << OFPAT_SET_TP_DST ) );
buffer *msg = create_features_reply( xid, get_datapath_id(), 0, 1, 0, supported, NULL );
switch_send_openflow_message( msg );
}
static void
_handle_features_request( const uint32_t transaction_id, void *user_data ) {
assert( user_data );
struct protocol *protocol = user_data;
switch_features features;
memset( &features, 0, sizeof( switch_features ) );
get_switch_features( &features );
/*
* The n_buffers field specifies the maximum number of packets the switch can
* buffer when sending packets to the controller using packet-in messages.
*/
buffer *features_reply = create_features_reply( transaction_id, features.datapath_id, features.n_buffers,
features.n_tables, features.auxiliary_id, features.capabilities );
if ( switch_send_openflow_message( features_reply ) ) {
protocol->ctrl.controller_connected = true;
/*
* save datapath's capabilities
*/
protocol->ctrl.capabilities = features.capabilities;
}
free_buffer( features_reply );
}
