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/***************************************************************************/
/* Copyright (c) 2024 Microsoft Corporation */
/* Copyright (c) 2026 Eclipse ThreadX contributors */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the MIT License which is available at */
/* https://opensource.org/licenses/MIT. */
/* */
/* SPDX-License-Identifier: MIT */
/***************************************************************************/
/* This NetX test concentrates on the ICMPv4 Error Message. */
#include "tx_api.h"
#include "nx_api.h"
#include "nx_ip.h"
#include "nx_icmp.h"
#if defined (__PRODUCT_NETXDUO__) && !defined (NX_DISABLE_ICMPV4_ERROR_MESSAGE) && !defined(NX_DISABLE_IPV4)
#define DEMO_STACK_SIZE 2048
/* Define the ThreadX and NetX object control blocks... */
static TX_THREAD ntest_0;
static NX_PACKET_POOL pool_0;
static NX_IP ip_0;
static NX_IP ip_1;
/* Define the counters used in the test application... */
static ULONG error_counter;
static ULONG ip_0_icmp_counter;
static ULONG ip_1_icmp_counter;
static ULONG ip_1_icmp_error_message_counter;
/* Define thread prototypes. */
static void ntest_0_entry(ULONG thread_input);
extern void test_control_return(UINT status);
extern void _nx_ram_network_driver_256(struct NX_IP_DRIVER_STRUCT *driver_req);
extern UINT (*packet_process_callback)(NX_IP *ip_ptr, NX_PACKET *packet_ptr);
static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr);
static VOID my_ipv4_packet_receive(NX_IP *ip_ptr, NX_PACKET *packet_ptr);
/* Define what the initial system looks like. */
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_icmp_send_error_message_test_application_define(void *first_unused_memory)
#endif
{
CHAR *pointer;
UINT status;
/* Setup the working pointer. */
pointer = (CHAR *) first_unused_memory;
/* Initialize the value. */
error_counter = 0;
ip_0_icmp_counter = 0;
ip_1_icmp_counter = 0;
ip_1_icmp_error_message_counter = 0;
/* Create the main thread. */
tx_thread_create(&ntest_0, "thread 0", ntest_0_entry, 0,
pointer, DEMO_STACK_SIZE,
4, 4, TX_NO_TIME_SLICE, TX_AUTO_START);
pointer = pointer + DEMO_STACK_SIZE;
/* Initialize the NetX system. */
nx_system_initialize();
/* Create a packet pool. */
status = nx_packet_pool_create(&pool_0, "NetX Main Packet Pool", 256, pointer, 2048);
pointer = pointer + 2048;
if (status)
error_counter++;
/* Create an IP instance. */
status = nx_ip_create(&ip_0, "NetX IP Instance 0", IP_ADDRESS(1, 2, 3, 4), 0xFFFFFF00UL, &pool_0, _nx_ram_network_driver_256,
pointer, 2048, 1);
pointer = pointer + 2048;
/* Create another IP instance. */
status += nx_ip_create(&ip_1, "NetX IP Instance 1", IP_ADDRESS(1, 2, 3, 5), 0xFFFFFF00UL, &pool_0, _nx_ram_network_driver_256,
pointer, 2048, 2);
pointer = pointer + 2048;
if (status)
error_counter++;
/* Enable ARP and supply ARP cache memory for IP Instance 0. */
status = nx_arp_enable(&ip_0, (void *) pointer, 1024);
pointer = pointer + 1024;
if (status)
error_counter++;
/* Enable ARP and supply ARP cache memory for IP Instance 1. */
status = nx_arp_enable(&ip_1, (void *) pointer, 1024);
pointer = pointer + 1024;
if (status)
error_counter++;
/* Enable ICMP processing for IP 0 instances. */
status = nx_icmp_enable(&ip_0);
/* Check TCP enable status. */
if (status)
error_counter++;
}
/* Define the test threads. */
static void ntest_0_entry(ULONG thread_input)
{
UINT status;
NX_PACKET *my_packet;
/* Print out test information banner. */
printf("NetX Test: ICMP Send Error Message Test..............................");
/* Check for earlier error. */
if (error_counter)
{
printf("ERROR!\n");
test_control_return(1);
}
packet_process_callback = my_packet_process;
/* Test illegal length of NX_IP_OPTION_INTERNET_TIMESTAMP option by ping. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the value. */
if ((ip_0_icmp_counter != 1) && (ip_1_icmp_counter != 0))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Enable ICMP processing for IP 1 instances. */
status = nx_icmp_enable(&ip_1);
/* Check TCP enable status. */
if (status)
error_counter++;
/* Test illegal length of NX_IP_OPTION_INTERNET_TIMESTAMP option and destination address (255, 255, 255, 255) by ping. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the value. */
if ((ip_0_icmp_counter != 2) && (ip_1_icmp_counter != 0))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Test illegal length of NX_IP_OPTION_INTERNET_TIMESTAMP option and non-initial fragment by ping. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the value. */
if ((ip_0_icmp_counter != 3) && (ip_1_icmp_counter != 0))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Set my function. */
ip_1.nx_ipv4_packet_receive = my_ipv4_packet_receive;
/* Test illegal length of NX_IP_OPTION_INTERNET_TIMESTAMP option by ping. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the value. */
if ((ip_0_icmp_counter != 4) && (ip_1_icmp_counter != 0))
{
printf("ERROR!\n");
test_control_return(1);
}
#ifndef NX_ENABLE_SOURCE_ADDRESS_CHECK
/* Test illegal length of NX_IP_OPTION_INTERNET_TIMESTAMP option and multicast address by ping. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the value. */
if ((ip_0_icmp_counter != 5) && (ip_1_icmp_counter != 0))
{
printf("ERROR!\n");
test_control_return(1);
}
#endif
/* Test unknown protocol. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
#ifndef NX_ENABLE_SOURCE_ADDRESS_CHECK
/* Check the value. */
if ((ip_0_icmp_counter != 6) && (ip_1_icmp_counter != 1))
#else
/* Check the value. */
if ((ip_0_icmp_counter != 5) && (ip_1_icmp_counter != 1))
#endif
{
printf("ERROR!\n");
test_control_return(1);
}
printf("SUCCESS!\n");
test_control_return(0);
}
static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr)
{
NX_IPV4_HEADER *ip_header_ptr;
NX_ICMP_HEADER *icmp_header_ptr;
ULONG ip_header_length;
ULONG protocol;
ULONG checksum;
ULONG val;
ULONG offset = 0;
ULONG shift;
ULONG message_word;
/* Get the IP header pointer. */
ip_header_ptr = (NX_IPV4_HEADER*)(packet_ptr -> nx_packet_prepend_ptr);
/* Get IP header. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_2);
protocol = (ip_header_ptr -> nx_ip_header_word_2 >> 16) & 0xFF;
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_2);
/* Only process ICMP message. */
if (protocol != NX_PROTOCOL_ICMP)
return (NX_TRUE);
/* Modify the ICMP packet from ip_0 instance. */
if(ip_ptr == &ip_0)
{
/* Update the icmp_counter. */
ip_0_icmp_counter++;
/* Get the IP header pointer. */
ip_header_ptr = (NX_IPV4_HEADER*)(packet_ptr -> nx_packet_prepend_ptr);
/* Calculate the IPv4 option length. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_0);
ip_header_length = ((ip_header_ptr -> nx_ip_header_word_0 & NX_IP_LENGTH_MASK) >> 24) * sizeof(ULONG);
/* Get ICMP header. */
icmp_header_ptr = (NX_ICMP_HEADER *)(packet_ptr -> nx_packet_prepend_ptr + ip_header_length);
/* Add the illegal length 7 for NX_IP_OPTION_INTERNET_TIMESTAMP option. */
if ((ip_0_icmp_counter == 1) || (ip_0_icmp_counter == 2) ||
#ifndef NX_ENABLE_SOURCE_ADDRESS_CHECK
(ip_0_icmp_counter == 3) || (ip_0_icmp_counter == 4) || (ip_0_icmp_counter == 5))
#else
(ip_0_icmp_counter == 3) || (ip_0_icmp_counter == 4))
#endif
{
/* Move the data to add the option. */
offset = 12;
shift = packet_ptr -> nx_packet_length - ip_header_length;
memmove(((UCHAR *)(icmp_header_ptr)) + offset, icmp_header_ptr, shift);
/* Clear memory. */
memset(&message_word, 0, sizeof(ULONG));
/* Add type, length, offset, overflw and flags. */
message_word = (ULONG)((NX_IP_OPTION_INTERNET_TIMESTAMP << 24) | (7 << 16) | (5 << 8) );
/* Adjust for endianness. */
NX_CHANGE_ULONG_ENDIAN(message_word);
/* Add type, length, offset, overflw and flags. */
memcpy(icmp_header_ptr, &message_word, sizeof(ULONG));
/* Clear the time stamp value. */
memset(((UCHAR *)(icmp_header_ptr)) + sizeof(ULONG), 0 , offset - sizeof(ULONG));
}
/* Modified the destination address to 255.255.255.255. */
if (ip_0_icmp_counter == 2)
{
/* Modified the destination address to 255.255.255.255. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_destination_ip);
ip_header_ptr -> nx_ip_header_destination_ip = IP_ADDRESS(255, 255, 255, 255);
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_destination_ip);
}
/* Modified the fragment offset. */
if (ip_0_icmp_counter == 3)
{
/* Modified the destination address to 255.255.255.255. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_1);
ip_header_ptr -> nx_ip_header_word_1 |= 10;
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_1);
}
#ifndef NX_ENABLE_SOURCE_ADDRESS_CHECK
/* Modified the destination address to 255.255.255.255. */
if (ip_0_icmp_counter == 5)
{
/* Modified the source address to 224.0.0.251. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_source_ip);
ip_header_ptr -> nx_ip_header_source_ip = IP_ADDRESS(224,0,0,251);
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_source_ip);
}
#endif
/* Modified the protocol as unknown. */
#ifndef NX_ENABLE_SOURCE_ADDRESS_CHECK
if (ip_0_icmp_counter == 6)
#else
if (ip_0_icmp_counter == 5)
#endif
{
/* Set the protocol as unkown protocol, ip_1 should send the icmp unreachable meesage. */;
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_2);
ip_header_ptr -> nx_ip_header_word_2 |= 0x00FF0000;
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_2);
}
/* Update the header IP length and total length. */
ip_header_length += offset;
packet_ptr -> nx_packet_append_ptr += offset;
packet_ptr -> nx_packet_length += offset;
/* Rebuild the first 32-bit word of the IP header. */
ip_header_ptr -> nx_ip_header_word_0 = (ULONG)((NX_IP_VERSION_V4 << 28) |
((ip_header_length/sizeof(ULONG)) << 24) |
NX_IP_NORMAL |
(0xFFFF & packet_ptr -> nx_packet_length));
/* Endian swapping logic. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_0);
/* Clear the checksum . */
ip_header_ptr -> nx_ip_header_word_2 = ip_header_ptr -> nx_ip_header_word_2 & 0x0000FFFF;
/* Calculate the checksum. */
checksum = _nx_ip_checksum_compute(packet_ptr, NX_IP_VERSION_V4,
/* Length is the size of IP header, including options */
(UINT)(ip_header_length),
/* IPv4 header checksum does not use src/dest addresses */
NULL, NULL);
val = (ULONG)(~checksum);
val = val & NX_LOWER_16_MASK;
/* Convert to network byte order. */
NX_CHANGE_ULONG_ENDIAN(val);
/* Now store the checksum in the IP header. */
ip_header_ptr -> nx_ip_header_word_2 = ip_header_ptr -> nx_ip_header_word_2 | val;
}
/* Check the ICMP packet from ip_1 instance. */
if(ip_ptr == &ip_1)
{
/* Update the icmp_counter. */
ip_1_icmp_counter++;
}
return NX_TRUE;
}
VOID my_ipv4_packet_receive(NX_IP *ip_ptr, NX_PACKET *packet_ptr)
{
NX_PACKET *my_packet[20];
UINT packet_counter;
UINT i;
/* Record the counter. */
packet_counter = ip_ptr -> nx_ip_default_packet_pool -> nx_packet_pool_available;
/* Loop to allocate the packet. */
for (i = 0; i < packet_counter; i ++)
nx_packet_allocate(ip_ptr -> nx_ip_default_packet_pool, &my_packet[i], 0, NX_NO_WAIT);
/* Receive the packet. */
_nx_ipv4_packet_receive(ip_ptr, packet_ptr);
/* Loop to release the packet. */
for (i = packet_counter; i > 0; i --)
nx_packet_release(my_packet[i - 1]);
/* Reset the function. */
ip_1.nx_ipv4_packet_receive = _nx_ipv4_packet_receive;
}
#else
extern void test_control_return(UINT status);
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_icmp_send_error_message_test_application_define(void *first_unused_memory)
#endif
{
printf("NetX Test: ICMP Send Error Message Test..............................N/A\n");
test_control_return(3);
}
#endif
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