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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 DHCP operation to verify the DHCP server source port
is excluded from DHCP Client validation checks. Further the NetX /NetX Duo packet processing
should forward packets for the UDP socket bound to 68 without requiring the source port
be 67. */
#include "tx_api.h"
#include "nx_api.h"
#include "nxd_dhcp_client.h"
extern void test_control_return(UINT status);
#if !defined(NX_DISABLE_IPV4)
#define DEMO_STACK_SIZE 4096
#define NX_PACKET_SIZE 1536
#define NX_PACKET_POOL_SIZE NX_PACKET_SIZE * 8
/* Define the ThreadX and NetX object control blocks... */
static TX_THREAD client_thread;
static NX_PACKET_POOL client_pool;
static NX_IP client_ip;
static NX_DHCP dhcp_client;
/* Define the counters used in the demo application... */
static ULONG error_counter;
static ULONG packet_counter;
static CHAR *pointer;
/* Define thread prototypes. */
static void client_thread_entry(ULONG thread_input);
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);
extern USHORT _nx_ip_checksum_compute(NX_PACKET *, ULONG, UINT, ULONG *, ULONG *);
extern void _nx_ram_network_driver_1024(struct NX_IP_DRIVER_STRUCT *driver_req);
/* DCHP Unicast Interaction Message. */
/* Frame (342 bytes) DHCP Offer. The server source port is modified from 67 to 83 in the OFFER
and REPLY packets for testing purposed. */
static const unsigned char pkt2[342] = {
0x00, 0x11, 0x22, 0x33, 0x44, 0x56, 0x00, 0x50, /* .."3DV.P */
0x56, 0x39, 0xf6, 0x3d, 0x08, 0x00, 0x45, 0x10, /* V9.=..E. */
0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, /* .H...... */
0x25, 0x79, 0x0a, 0x00, 0x00, 0x01, 0x0a, 0x00, /* %y...... */
0x00, 0x1c, 0x00, 0x53, 0x00, 0x44, 0x01, 0x34, /* ...C.D.4 */
0xdb, 0x11, 0x02, 0x01, 0x06, 0x00, 0x22, 0x33, /* .!...."3 */
0x44, 0x6e, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, /* Dn...... */
0x00, 0x00, 0x0a, 0x00, 0x00, 0x1c, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, /* ........ */
0x22, 0x33, 0x44, 0x56, 0x00, 0x00, 0x00, 0x00, /* "3DV.... */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82, /* ......c. */
0x53, 0x63, 0x35, 0x01, 0x02, 0x36, 0x04, 0x0a, /* Sc5..6.. */
0x00, 0x00, 0x01, 0x33, 0x04, 0x00, 0x00, 0x01, /* ...3.... */
0x2c, 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, 0x03, /* ,....... */
0x04, 0x0a, 0x00, 0x00, 0x01, 0xff, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* ...... */
};
/* Frame (342 bytes) DHCP ACK */
static const unsigned char pkt4[342] = {
0x00, 0x11, 0x22, 0x33, 0x44, 0x56, 0x00, 0x50, /* .."3DV.P */
0x56, 0x39, 0xf6, 0x3d, 0x08, 0x00, 0x45, 0x10, /* V9.=..E. */
0x01, 0x48, 0x00, 0x00, 0x00, 0x00, 0x80, 0x11, /* .H...... */
0x25, 0x79, 0x0a, 0x00, 0x00, 0x01, 0x0a, 0x00, /* %y...... */
0x00, 0x1c, 0x00, 0x53, 0x00, 0x44, 0x01, 0x34, /* ...C.D.4 */
0xd8, 0x10, 0x02, 0x01, 0x06, 0x00, 0x22, 0x33, /* . ...."3 */
0x44, 0x6e, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, /* Dn...... */
0x00, 0x00, 0x0a, 0x00, 0x00, 0x1c, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, /* ........ */
0x22, 0x33, 0x44, 0x56, 0x00, 0x00, 0x00, 0x00, /* "3DV.... */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x82, /* ......c. */
0x53, 0x63, 0x35, 0x01, 0x05, 0x36, 0x04, 0x0a, /* Sc5..6.. */
0x00, 0x00, 0x01, 0x33, 0x04, 0x00, 0x00, 0x01, /* ...3.... */
0x2c, 0x01, 0x04, 0xff, 0xff, 0xff, 0x00, 0x03, /* ,....... */
0x04, 0x0a, 0x00, 0x00, 0x01, 0xff, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* ........ */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* ...... */
};
ULONG dhcp_get_data_local(UCHAR *data, UINT size)
{
ULONG value = 0;
/* Process the data retrieval request. */
while (size-- > 0)
{
/* Build return value. */
value = (value << 8) | *data++;
}
/* Return value. */
return(value);
}
/* Define what the initial system looks like. */
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_dhcp_client_server_source_port_test_application_define(void *first_unused_memory)
#endif
{
UINT status;
/* Setup the working pointer. */
pointer = (CHAR *) first_unused_memory;
/* Create the client thread. */
tx_thread_create(&client_thread, "thread client", client_thread_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 the client packet pool. */
status = nx_packet_pool_create(&client_pool, "NetX Main Packet Pool", 1024, pointer, NX_PACKET_POOL_SIZE);
pointer = pointer + NX_PACKET_POOL_SIZE;
/* Check for pool creation error. */
if (status)
error_counter++;
/* Create an IP instance for the DHCP Client. */
status = nx_ip_create(&client_ip, "DHCP Client", IP_ADDRESS(0, 0, 0, 0), 0xFFFFFF00UL, &client_pool, _nx_ram_network_driver_1024, pointer, 2048, 1);
pointer = pointer + 2048;
/* Check for IP create errors. */
if (status)
error_counter++;
/* Enable UDP traffic. */
status = nx_udp_enable(&client_ip);
/* Check for UDP enable errors. */
if (status)
error_counter++;
return;
}
/* Define the test threads. */
void client_thread_entry(ULONG thread_input)
{
UINT status;
ULONG client_ip_address;
ULONG client_ip_network_mask;
printf("NetX Test: DHCP Client Server Source Port Test.......................");
/* Check the error. */
if(error_counter)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Create the DHCP instance. */
status = nx_dhcp_create(&dhcp_client, &client_ip, "dhcp_client");
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
#ifdef NX_DHCP_CLIENT_USER_CREATE_PACKET_POOL
status = nx_dhcp_packet_pool_set(&dhcp_client, &client_pool);
if (status)
error_counter++;
#endif /* NX_DHCP_CLIENT_USER_CREATE_PACKET_POOL */
/* Clear the broadcast flag. */
status = nx_dhcp_clear_broadcast_flag(&dhcp_client, NX_TRUE);
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Deal the packet with my routing. */
advanced_packet_process_callback = my_packet_process;
/* Start the DHCP Client. */
status = nx_dhcp_start(&dhcp_client);
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check for address resolution. */
status = nx_ip_status_check(&client_ip, NX_IP_ADDRESS_RESOLVED, (ULONG *) &status, 10 * NX_IP_PERIODIC_RATE);
/* Check status. */
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Get the IP address. */
status = nx_ip_address_get(&client_ip, &client_ip_address, &client_ip_network_mask);
/* Check status. */
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the IP address. */
if ((client_ip_address != IP_ADDRESS(10, 0, 0, 28)) ||
(client_ip_network_mask != IP_ADDRESS(255, 255, 255, 0)))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Stopping the DHCP client. */
status = nx_dhcp_stop(&dhcp_client);
/* Check status. */
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* All done. Return resources to NetX and ThreadX. */
status = nx_dhcp_delete(&dhcp_client);
/* Check status. */
if (status)
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the error. */
if (error_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)
{
UINT status;
ULONG dhcp_xid;
NX_PACKET *my_packet;
/* Is this a DHCP packet e.g. not an ARP packet? */
if (packet_ptr -> nx_packet_length < 328)
{
/* Maybe an ARP packet. let the RAM driver deal with it */
return NX_TRUE;
}
/* Update the packet counter. */
packet_counter ++;
/* Check the packet counter. */
if (packet_counter == 1)
{
/* Receive the DHCP Discover message. */
/* Send DHCP Offer message. */
status = nx_packet_allocate(ip_ptr -> nx_ip_default_packet_pool, &my_packet, 0, NX_WAIT_FOREVER);
/* Check status. */
if (status != NX_SUCCESS)
{
error_counter++;
return NX_TRUE;
}
/* Write the DHCP Offer message. */
my_packet -> nx_packet_length = sizeof(pkt2) - 14;
memcpy(my_packet -> nx_packet_prepend_ptr + 16, pkt2 + 14, my_packet -> nx_packet_length);
my_packet -> nx_packet_append_ptr = my_packet -> nx_packet_prepend_ptr + my_packet -> nx_packet_length;
my_packet -> nx_packet_prepend_ptr += 16;
my_packet -> nx_packet_append_ptr += 16;
}
else if (packet_counter == 2)
{
/* Receive the DHCP Request message, */
/* Send DHCP ACK message. */
status = nx_packet_allocate(ip_ptr -> nx_ip_default_packet_pool, &my_packet, 0, NX_WAIT_FOREVER);
/* Check status. */
if (status != NX_SUCCESS)
{
error_counter++;
return NX_TRUE;
}
/* Write the DHCP ACK message. */
my_packet -> nx_packet_length = sizeof(pkt4) - 14;
memcpy(my_packet -> nx_packet_prepend_ptr + 16, pkt4 + 14, my_packet -> nx_packet_length);
my_packet -> nx_packet_append_ptr = my_packet -> nx_packet_prepend_ptr + my_packet -> nx_packet_length;
my_packet -> nx_packet_prepend_ptr += 16;
my_packet -> nx_packet_append_ptr += 16;
}
/* Get the XID of DHCP message from DHCP Server. */
dhcp_xid = dhcp_get_data_local(my_packet -> nx_packet_prepend_ptr + 20 + 8 + NX_BOOTP_OFFSET_XID, 4);
/* Replace the XID. */
dhcp_client.nx_dhcp_interface_record[0].nx_dhcp_xid = dhcp_xid;
/* Receive the packet. */
_nx_ip_packet_deferred_receive(ip_ptr, my_packet);
return NX_TRUE;
}
#else
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_dhcp_client_server_source_port_test_application_define(void *first_unused_memory)
#endif
{
/* Print out test information banner. */
printf("NetX Test: DHCP Client Server Source Port Test.......................N/A\n");
test_control_return(3);
}
#endif
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