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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 basic IPv6 fragmentation. */
/* Test sequence:
* 1. ip_0 allocate one packets.
* 1. ip_0 add the Hop-by-Hop Option, 2 bytes(next header, option length) + 128 bytes(option length).
* 1. ip_0 append the data 1000 bytes.
* 2. ip_0 discard the packets excpet the header packet, packet length also is 2 + 128 + 1000.
* 3. ip_0 call nxd_ip_raw_packet_send to send the packet with Hop-by-Hop Option.
* 4. ip_0 call nx_ipv6_fragment_process to fragment packet and send the fragmentation packets.
* 5. check if the driver receive fragmentation packet form ip_0.
Test pointer:
* 1. in _nx_ipv6_packet_copy failure since the next packet of source packet is NX_NULL, cover the following code.
if ((source_pkt == NX_NULL) || (dest_pkt == NX_NULL))
return(NX_NOT_SUCCESSFUL);
* 2. in nx_ipv6_fragment_process failure since _nx_ipv6_packet_copy failure, cover the following code:
// For the first packet, the prepend pointer is already at the begining of the IP header.
if (_nx_ipv6_packet_copy(source_packet, first_fragment, fragment_size))
break;
*/
#include "tx_api.h"
#include "nx_api.h"
#if !defined(NX_DISABLE_FRAGMENTATION) && defined(FEATURE_NX_IPV6)
#include "nx_ipv6.h"
#define DEMO_STACK_SIZE 2048
/* Define the ThreadX and NetX object control blocks... */
static TX_THREAD thread_0;
static NX_PACKET_POOL pool_0;
static NX_IP ip_0;
static NX_IP ip_1;
static NXD_ADDRESS ipv6_address_0;
static NXD_ADDRESS ipv6_address_1;
/* Define the counters used in the demo application... */
static ULONG error_counter;
static ULONG fragmentation_counter;
/* Define thread prototypes. */
static void thread_0_entry(ULONG thread_input);
extern void test_control_return(UINT status);
extern void _nx_ram_network_driver(struct NX_IP_DRIVER_STRUCT *driver_req);
extern UINT (*advanced_packet_process_callback)(NX_IP *ip_ptr, NX_PACKET *packet_ptr, UINT *operation_ptr, UINT *delay_ptr);
static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr, UINT *operation_ptr, UINT *delay_ptr);
static CHAR msg[1500]={'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
/* Define what the initial system looks like. */
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_ipv6_fragmentation_error_test2_application_define(void *first_unused_memory)
#endif
{
CHAR *pointer;
UINT status;
/* Setup the working pointer. */
pointer = (CHAR *) first_unused_memory;
error_counter = 0;
fragmentation_counter = 0;
/* Create the main thread. */
tx_thread_create(&thread_0, "thread 0", thread_0_entry, 0,
pointer, DEMO_STACK_SIZE,
3, 3, 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", 128, pointer, 128*60);
pointer = pointer + 128*60;
/* Check for pool creation error. */
if (status)
error_counter++;
/* Create an IP instance. */
status = nx_ip_create(&ip_0, "NetX IP Instance 0", IP_ADDRESS(1, 2, 3, 4), 0xFFFFF000UL, &pool_0, _nx_ram_network_driver,
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), 0xFFFFF000UL, &pool_0, _nx_ram_network_driver,
pointer, 2048, 1);
pointer = pointer + 2048;
/* Check for IP create errors. */
if (status)
error_counter++;
status = nxd_ipv6_enable(&ip_0);
status += nxd_ipv6_enable(&ip_1);
if (status)
error_counter++;
/* Enable IP fragmentation logic on both IP instances. */
status = nx_ip_fragment_enable(&ip_0);
status += nx_ip_fragment_enable(&ip_1);
if (status)
error_counter++;
/* Enable IP raw feature on both IP instances. */
status = nx_ip_raw_packet_enable(&ip_0);
status += nx_ip_raw_packet_enable(&ip_1);
if (status)
error_counter++;
status = nxd_icmp_enable(&ip_0);
status += nxd_icmp_enable(&ip_1);
if (status)
error_counter++;
/* Set ipv6 version and address. */
ipv6_address_0.nxd_ip_version = NX_IP_VERSION_V6;
ipv6_address_0.nxd_ip_address.v6[0] = 0x20010000;
ipv6_address_0.nxd_ip_address.v6[1] = 0x00000000;
ipv6_address_0.nxd_ip_address.v6[2] = 0x00000000;
ipv6_address_0.nxd_ip_address.v6[3] = 0x10000001;
ipv6_address_1.nxd_ip_version = NX_IP_VERSION_V6;
ipv6_address_1.nxd_ip_address.v6[0] = 0x20010000;
ipv6_address_1.nxd_ip_address.v6[1] = 0x00000000;
ipv6_address_1.nxd_ip_address.v6[2] = 0x00000000;
ipv6_address_1.nxd_ip_address.v6[3] = 0x10000002;
/* Set interfaces' address */
status += nxd_ipv6_address_set(&ip_0, 0, &ipv6_address_0, 64, NX_NULL);
status += nxd_ipv6_address_set(&ip_1, 0, &ipv6_address_1, 64, NX_NULL);
if(status)
error_counter++;
}
/* Define the test threads. */
static void thread_0_entry(ULONG thread_input)
{
UINT status;
UCHAR data;
NX_PACKET *my_packet;
/* Print out some test information banners. */
printf("NetX Test: IPv6 Fragmentation Error Test2............................");
/* Check for earlier error. */
if (error_counter)
{
printf("ERROR!\n");
test_control_return(1);
}
/* DAD */
tx_thread_sleep(5 * NX_IP_PERIODIC_RATE);
/* Set the callback function. */
advanced_packet_process_callback = my_packet_process;
/* Allocate a packet. */
status = nx_packet_allocate(&pool_0, &my_packet, NX_IPv6_PACKET, TX_WAIT_FOREVER);
/* Check status. */
if (status != NX_SUCCESS)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Added Hop-by-Hop Options header to let the unfragmentable size exceed one packet. */
/* Added the Next header. */
data = 23;
status = nx_packet_data_append(my_packet, &data, 1, &pool_0, NX_IP_PERIODIC_RATE);
/* Added the Hdr Ext Len. */
data = 16;
status += nx_packet_data_append(my_packet, &data, 1, &pool_0, NX_IP_PERIODIC_RATE);
/* Added the Options. */
status += nx_packet_data_append(my_packet, msg, 16 * 8, &pool_0, NX_IP_PERIODIC_RATE);
/* Check for error. */
if(status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Write ABCs into the packet payload! */
status = nx_packet_data_append(my_packet, msg, 1000, &pool_0, NX_IP_PERIODIC_RATE);
/* Check for error. */
if(status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Discard the packets except the header packet. */
my_packet -> nx_packet_next = NX_NULL;
my_packet -> nx_packet_last = NX_NULL;
/* Send the raw packet for Hop-by-Hop Option. */
status = nxd_ip_raw_packet_send(&ip_0, my_packet, &ipv6_address_1, NX_PROTOCOL_NEXT_HEADER_HOP_BY_HOP, 255, NX_IP_NORMAL);
/* Check for error. */
if(status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check for error. */
if((error_counter) || (fragmentation_counter))
{
printf("ERROR!\n");
test_control_return(1);
}
else
{
printf("SUCCESS!\n");
test_control_return(0);
}
}
static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr, UINT *operation_ptr, UINT *delay_ptr)
{
/* Check if receive IPv6 fragmentation packet from ip_0, except NA and NS(IPv6(40) + NS/NA(32)). */
if ((ip_ptr == &ip_0) && (packet_ptr -> nx_packet_length > 72))
{
/* Updated the packet_counter. */
fragmentation_counter ++;
}
return NX_TRUE;
}
#else
extern void test_control_return(UINT status);
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_ipv6_fragmentation_error_test2_application_define(void *first_unused_memory)
#endif
{
printf("NetX Test: IPv6 Fragmentation Error Test2............................N/A\n");
test_control_return(3);
}
#endif /* NX_DISABLE_FRAGMENTATION */
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