static openflow_actions * create_openflow_actions_to_update_vid( uint16_t in_vid, uint16_t out_vid ) { if ( in_vid == out_vid ) { return NULL; } openflow_actions *vlan_actions = create_actions(); if ( out_vid == VLAN_NONE ) { append_action_strip_vlan( vlan_actions ); } else { append_action_set_vlan_vid( vlan_actions, out_vid ); } return vlan_actions; }
static int build_packet_out_actions( port_info *port, void *user_data ) { if ( !port->external_link || port->switch_to_switch_reverse_link ) { // don't send to non-external port return 0; } port_params *params = user_data; if ( port->dpid == params->switch_params->in_datapath_id && port->port_no == params->switch_params->in_port ) { // don't send to input port return 0; } int n_actions_original = params->actions->n_actions; uint16_t slice = params->switch_params->slice; uint16_t out_vid = params->switch_params->in_vid; bool found = get_port_vid( slice, port->dpid, port->port_no, &out_vid ); if ( found ) { if ( out_vid == VLAN_NONE ) { append_action_strip_vlan( params->actions ); } else { append_action_set_vlan_vid( params->actions, out_vid ); } } else { if ( !loose_mac_based_slicing_enabled() ) { return 0; } if ( !mac_slice_maps_exist( slice ) ) { return 0; } } const uint16_t max_len = UINT16_MAX; append_action_output( params->actions, port->port_no, max_len ); return params->actions->n_actions - n_actions_original; }
static void output_packet( const buffer *packet, uint64_t dpid, uint16_t port_no, uint16_t out_vid ) { openflow_actions *actions = create_actions(); uint16_t in_vid = VLAN_NONE; if ( packet_type_eth_vtag( packet ) ) { packet_info packet_info = get_packet_info( packet ); in_vid = packet_info.vlan_vid; } if ( out_vid != in_vid ) { if ( in_vid != VLAN_NONE && out_vid == VLAN_NONE ) { append_action_strip_vlan( actions ); } else { append_action_set_vlan_vid( actions, out_vid ); } } const uint16_t max_len = UINT16_MAX; append_action_output( actions, port_no, max_len ); send_packet_out( dpid, actions, packet ); delete_actions( actions ); }
static void append_action( openflow_actions *actions, VALUE action ) { if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::Enqueue" ) ) == Qtrue ) { uint32_t queue_id = ( uint32_t ) NUM2UINT( rb_funcall( action, rb_intern( "queue_id" ), 0 ) ); uint16_t port_number = ( uint16_t ) NUM2UINT( rb_funcall( action, rb_intern( "port_number" ), 0 ) ); append_action_enqueue( actions, port_number, queue_id ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SendOutPort" ) ) == Qtrue ) { uint16_t port_number = ( uint16_t ) NUM2UINT( rb_funcall( action, rb_intern( "port_number" ), 0 ) ); uint16_t max_len = ( uint16_t ) NUM2UINT( rb_funcall( action, rb_intern( "max_len" ), 0 ) ); append_action_output( actions, port_number, max_len ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetEthDstAddr" ) ) == Qtrue ) { uint8_t dl_dst[ OFP_ETH_ALEN ]; uint8_t *ptr = ( uint8_t * ) dl_addr_to_a( rb_funcall( action, rb_intern( "mac_address" ), 0 ), dl_dst ); append_action_set_dl_dst( actions, ptr ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetEthSrcAddr" ) ) == Qtrue ) { uint8_t dl_src[ OFP_ETH_ALEN ]; uint8_t *ptr = ( uint8_t * ) dl_addr_to_a( rb_funcall( action, rb_intern( "mac_address" ), 0 ), dl_src ); append_action_set_dl_src( actions, ptr ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetIpDstAddr" ) ) == Qtrue ) { append_action_set_nw_dst( actions, nw_addr_to_i( rb_funcall( action, rb_intern( "ip_address" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetIpSrcAddr" ) ) == Qtrue ) { append_action_set_nw_src( actions, nw_addr_to_i( rb_funcall( action, rb_intern( "ip_address" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetIpTos" ) ) == Qtrue ) { append_action_set_nw_tos( actions, ( uint8_t ) NUM2UINT( rb_funcall( action, rb_intern( "type_of_service" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetTransportDstPort" ) ) == Qtrue ) { append_action_set_tp_dst( actions, ( uint16_t ) NUM2UINT( rb_funcall( action, rb_intern( "port_number" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetTransportSrcPort" ) ) == Qtrue ) { append_action_set_tp_src( actions, ( uint16_t ) NUM2UINT( rb_funcall( action, rb_intern( "port_number" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetVlanPriority" ) ) == Qtrue ) { append_action_set_vlan_pcp( actions, ( uint8_t ) NUM2UINT( rb_funcall( action, rb_intern( "vlan_priority" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::SetVlanVid" ) ) == Qtrue ) { append_action_set_vlan_vid( actions, ( uint16_t ) NUM2UINT( rb_funcall( action, rb_intern( "vlan_id" ), 0 ) ) ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::StripVlanHeader" ) ) == Qtrue ) { append_action_strip_vlan( actions ); } else if ( rb_funcall( action, rb_intern( "is_a?" ), 1, rb_path2class( "Trema::VendorAction" ) ) == Qtrue ) { VALUE vendor_id = rb_funcall( action, rb_intern( "vendor_id" ), 0 ); VALUE rbody = rb_funcall( action, rb_intern( "body" ), 0 ); if ( rbody != Qnil ) { Check_Type( rbody, T_ARRAY ); uint16_t length = ( uint16_t ) RARRAY_LEN( rbody ); buffer *body = alloc_buffer_with_length( length ); void *p = append_back_buffer( body, length ); for ( int i = 0; i < length; i++ ) { ( ( uint8_t * ) p )[ i ] = ( uint8_t ) FIX2INT( RARRAY_PTR( rbody )[ i ] ); } append_action_vendor( actions, ( uint32_t ) NUM2UINT( vendor_id ), body ); free_buffer( body ); } else { append_action_vendor( actions, ( uint32_t ) NUM2UINT( vendor_id ), NULL ); } } else { rb_raise( rb_eTypeError, "actions argument must be an Array of Action objects" ); } }