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_error_report_fnc

Callback function to write an error message to the screen.

int cb_error_report_fnc(SOCKET s, int reason, int subreason);

Parameters

s

Socket on which the error occurred.

reason

One of the following values.

Value	Meaning
TCP_RETRANS	Excessive retransmissions.
TCP_CONNECTION_CLOSING	FIN received from other side.
ICMP_QUENCH	ICMP quench message received.
ICMP_UNREACH	ICMP unreachable message received.
ICMP_TIME_EXCEEDED	ICMP time exceeded message received.
ICMP_PARAM_PROBLEM	ICMP parameter problem message received.

subreason

If reasons is one of the ICMP_... values, subreason has one of these values:

Value	Meaning
ICMP_C_FRAG	Fragmentation needed and DF is set.
ICMP_C_HOSTISS	Source host isolated.
ICMP_C_HOSTPROH	Destination host administratively prohibited.
ICMP_C_HOSTTOS	Host unreachable for TOS.
ICMP_C_HOSTUK	Destination host unknown.
ICMP_C_HOSTUR	Host unreachable.
ICMP_C_NETPROH	Destination net administratively prohibited.
ICMP_C_NETTOS	Net unreachable for TOS.
ICMP_C_NETUK	Destination network unknown.
ICMP_C_PROTUR	Protocol unreachable.
ICMP_C_SOURCE_QUENCH	Source quench.
ICMP_C_SRCROUTE	Bad source route.
ICMP_C_TEXP_FRAG	Reassembly timeout.
ICMP_C_TEXP_TTL	Time exceeded.
ICMP_P_IPCHKSUM	IP checksum error.
ICMP_P_TCPCHKSUM	TCP checksum error.
ICMP_P_TCPSEQ	TCP sequence not in window.
ICMP_P_UDPCHKSUM	UDP checksum error.

cb_error_report_fnc is called by RTIP-32 to display error messages. It is called through function pointer rtip_callbacks->cb_error_report_fnc. An application can modify this pointer to point to an arbitrary function or NULL to suppress any error output. By default, cb_error_report_fnc calls rtip_callbacks->cb_wr_screen_string_fnc and ignores reason TCP_CONNECTION_CLOSING.

Left Extended RTIP-32 API

Function cb_rs232_connection_lost_fnc

Down Function cb_raw_mode_in_char_fnc