RTKernel-32

RTFiles-32

RTIP-32

RTIP-32 Programming Manual

RTIP-32 Reference Manual

RTIP-32 Configuration

Socket API

Simplified Networking API

Extended RTIP-32 API

Function vf_init

Function xn_add_dns_server

Function xn_add_host_table_entry

Function xn_clear_host_cache

Function xn_delete_host_table_entry

Function xn_get_domain_name

Function xn_has_dns

Function xn_set_domain_name

Function xn_set_server_list

Function xn_name2ip_addr

Function xn_abort

Function xn_arp_send

Function xn_attach

Function xn_bootp_res

Function xn_bootp

Function xn_debug_error

Function xn_getlasterror

Function xn_geterror_string

Function xn_interface_close

Function xn_interface_info

Function xn_interface_mcast

Function xn_interface_open

Function xn_interface_open_config

Function xn_interface_opt

Function xn_interface_ethernet_statistics

Function xn_interface_statistics

Function xn_ip_set_option

Function xn_ping

Function xn_pkt_data_max

Function xn_rarp

Function xn_rt_add

Function xn_rt_cycle_gw

Function xn_rt_del

Function xn_rt_replace

Function xn_rtip_exit

Function xn_rtip_init

Function xn_rtip_restart

Function xn_set_ip

Function xn_tcp_is_connect

Function xn_tcp_is_read

Function xn_tcp_is_write

Function xn_wait_tcp_output

Function xn_autoanswer

Function xn_autologin

Function xn_hangup

Function xn_scriptlogin

Function xn_autoip

Function xn_ioacc_init

Function xn_nat_init

Function xn_arp_add

Function xn_arp_del

Function xn_arp_remote

Function xn_arp_cache_lookup

Function xn_send_ethernet_frame

Function xn_callbacks

Function cb_wr_screen_string_fnc

Function cb_rs232_connection_lost_fnc

Function cb_error_report_fnc

Function cb_raw_mode_in_char_fnc

Function cb_autoip_new_ip_fnc

Function cb_autoip_no_ip_fnc

Function cb_packetin_isr

Function cb_packetin_task

Function cb_packetout

Function cb_packetout

This callback is called by RTIP-32 before an outgoing data packet is sent:

int cb_packetout(int interface, byte * data, int length, int buffer_size);

Parameters

interface

Interface number (as returned by xn_interface_open or xn_interface_open_config) on which the packet will be sent.

data

Pointer to the packet's data.

length

Number of bytes pointed to by parameter data.

buffer_size

Number of bytes the buffer pointed to by data can hold. buffer_size will always be >= length.

return value

Number of bytes RTIP-32 should send at *data. If 0 is returned, RTIP-32 will discard this packet without sending it.

This callback can be used to intercept outgoing packets. The callback function may modify the data pointed to by parameter data, if designed. It must return the number of bytes RTIP-32 should send. If the packet data is not modified and RTIP-32 should continue normal processing, return parameter length. To discard the data, return 0.

Left Extended RTIP-32 API

Function cb_packetin_task