/***************************************************************************/ /* 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 overlapping TCP data packets. */ #include "tx_api.h" #include "nx_api.h" extern void test_control_return(UINT status); #if !defined(NX_TCP_ACK_EVERY_N_PACKETS) && !defined(NX_DISABLE_IPV4) #define DEMO_STACK_SIZE 2048 #define MSG "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" /* Define the ThreadX and NetX object control blocks... */ static TX_THREAD thread_0; static TX_THREAD thread_1; static NX_PACKET_POOL pool_0; static NX_IP ip_0; static NX_IP ip_1; static NX_TCP_SOCKET client_socket; static NX_TCP_SOCKET server_socket; /* Define the counters used in the demo application... */ static ULONG error_counter; extern ULONG packet_gather; /* Define thread prototypes. */ static void thread_0_entry(ULONG thread_input); static void thread_1_entry(ULONG thread_input); static void thread_1_connect_received(NX_TCP_SOCKET *server_socket, UINT port); static void thread_1_disconnect_received(NX_TCP_SOCKET *server_socket); extern void test_control_return(UINT status); extern void _nx_ram_network_driver_256(struct NX_IP_DRIVER_STRUCT *driver_req); /* Define what the initial system looks like. */ #ifdef CTEST VOID test_application_define(void *first_unused_memory) #else void netx_tcp_overlapping_packet_test_application_define(void *first_unused_memory) #endif { CHAR *pointer; UINT status; /* Setup the working pointer. */ pointer = (CHAR *) first_unused_memory; error_counter = 0; /* Create the main thread. */ tx_thread_create(&thread_0, "thread 0", thread_0_entry, 0, pointer, DEMO_STACK_SIZE, 4, 4, TX_NO_TIME_SLICE, TX_AUTO_START); pointer = pointer + DEMO_STACK_SIZE; /* Create the main thread. */ tx_thread_create(&thread_1, "thread 1", thread_1_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", 512, pointer, 8192); pointer = pointer + 8192; 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, 1); 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; /* Enable ARP and supply ARP cache memory for IP Instance 1. */ status += nx_arp_enable(&ip_1, (void *) pointer, 1024); pointer = pointer + 1024; /* Check ARP enable status. */ if (status) error_counter++; /* Enable TCP processing for both IP instances. */ status = nx_tcp_enable(&ip_0); status += nx_tcp_enable(&ip_1); /* Check TCP enable status. */ if (status) error_counter++; } /* Define the test threads. */ static void thread_0_entry(ULONG thread_input) { UINT status; NX_PACKET *my_packet1; NX_PACKET *my_packet2; NX_PACKET *my_packet3; NX_PACKET *my_packet4; NX_PACKET *my_packet23; char *msg = MSG; ULONG seq1, seq2; /* Print out test information banner. */ printf("NetX Test: TCP Overlapping Packet Test 1............................."); /* Check for earlier error. */ if (error_counter) { printf("ERROR!\n"); test_control_return(1); } /* Create a socket. */ status = nx_tcp_socket_create(&ip_0, &client_socket, "Client Socket", NX_IP_NORMAL, NX_FRAGMENT_OKAY, NX_IP_TIME_TO_LIVE, 300, NX_NULL, NX_NULL); /* Check for error. */ if (status) error_counter++; /* Bind the socket. */ status = nx_tcp_client_socket_bind(&client_socket, 12, NX_WAIT_FOREVER); /* Check for error. */ if (status) error_counter++; /* Attempt to connect the socket. */ tx_thread_relinquish(); status = nx_tcp_client_socket_connect(&client_socket, IP_ADDRESS(1, 2, 3, 5), 12, 5 * NX_IP_PERIODIC_RATE); /* Check for error. */ if (status) error_counter++; /* Create 4 packets */ status = nx_packet_allocate(&pool_0, &my_packet1, NX_TCP_PACKET, NX_WAIT_FOREVER); status += nx_packet_allocate(&pool_0, &my_packet2, NX_TCP_PACKET, NX_WAIT_FOREVER); status += nx_packet_allocate(&pool_0, &my_packet3, NX_TCP_PACKET, NX_WAIT_FOREVER); status += nx_packet_allocate(&pool_0, &my_packet4, NX_TCP_PACKET, NX_WAIT_FOREVER); status += nx_packet_allocate(&pool_0, &my_packet23, NX_TCP_PACKET, NX_WAIT_FOREVER); if (status) error_counter++; /* Fill in the packet with data. */ /* Packet 1 contains bytes 0 - 37 Packet 2 contains bytes 38 - 75 Packet 3 contains bytes 76 - 113 Packet 4 contains bytes 76 - 85 packet 23 contains bytes 38 - 113 */ memcpy(my_packet1 -> nx_packet_prepend_ptr, &msg[0], 38); my_packet1 -> nx_packet_length = 38; my_packet1 -> nx_packet_append_ptr = my_packet1 -> nx_packet_prepend_ptr + 38; memcpy(my_packet2 -> nx_packet_prepend_ptr, &msg[38], 38); my_packet2 -> nx_packet_length = 38; my_packet2 -> nx_packet_append_ptr = my_packet2 -> nx_packet_prepend_ptr + 38; memcpy(my_packet3 -> nx_packet_prepend_ptr, &msg[76], 38); my_packet3 -> nx_packet_length = 38; my_packet3 -> nx_packet_append_ptr = my_packet3 -> nx_packet_prepend_ptr + 38; memcpy(my_packet4 -> nx_packet_prepend_ptr, &msg[76], 10); my_packet4 -> nx_packet_length = 10; my_packet4 -> nx_packet_append_ptr = my_packet4 -> nx_packet_prepend_ptr + 10; memcpy(my_packet23 -> nx_packet_prepend_ptr, &msg[38], 76); my_packet23 -> nx_packet_length = 76; my_packet23 -> nx_packet_append_ptr = my_packet23 -> nx_packet_prepend_ptr + 76; /* Send the 1st one */ status = nx_tcp_socket_send(&client_socket, my_packet1, NX_IP_PERIODIC_RATE); /* Update the seq number and send the 3rd one. */ seq1 = client_socket.nx_tcp_socket_tx_sequence; client_socket.nx_tcp_socket_tx_sequence += 38; status += nx_tcp_socket_send(&client_socket, my_packet3, NX_IP_PERIODIC_RATE); seq2 = client_socket.nx_tcp_socket_tx_sequence; /* Update the seq number and send the 4th one. */ client_socket.nx_tcp_socket_tx_sequence = seq1 + 38; status += nx_tcp_socket_send(&client_socket, my_packet4, NX_IP_PERIODIC_RATE); /* Restore the Seq number for packet 2. */ client_socket.nx_tcp_socket_tx_sequence = seq1; status += nx_tcp_socket_send(&client_socket, my_packet2, NX_IP_PERIODIC_RATE); /* Restore the seq number for packet 23 */ client_socket.nx_tcp_socket_tx_sequence = seq1; #ifdef __PRODUCT_NETXDUO__ /* Also reduce the outstanding byte count. */ client_socket.nx_tcp_socket_tx_outstanding_bytes -= my_packet23 -> nx_packet_length; #endif status += nx_tcp_socket_send(&client_socket, my_packet23, NX_IP_PERIODIC_RATE); if (status) { error_counter++; } if(client_socket.nx_tcp_socket_tx_sequence != seq2) { error_counter++; } } static char rcv_buffer[200]; static void thread_1_entry(ULONG thread_input) { UINT status; NX_PACKET *packet_ptr; ULONG actual_status; ULONG recv_length = 0; /* Ensure the IP instance has been initialized. */ status = nx_ip_status_check(&ip_1, NX_IP_INITIALIZE_DONE, &actual_status, NX_IP_PERIODIC_RATE); /* Check status... */ if (status != NX_SUCCESS) { error_counter++; test_control_return(1); } /* Create a socket. */ status = nx_tcp_socket_create(&ip_1, &server_socket, "Server Socket", NX_IP_NORMAL, NX_FRAGMENT_OKAY, NX_IP_TIME_TO_LIVE, 200, NX_NULL, thread_1_disconnect_received); /* Check for error. */ if (status) error_counter++; /* Setup this thread to listen. */ status = nx_tcp_server_socket_listen(&ip_1, 12, &server_socket, 5, thread_1_connect_received); /* Check for error. */ if (status) error_counter++; /* Accept a client socket connection. */ status = nx_tcp_server_socket_accept(&server_socket, 5 * NX_IP_PERIODIC_RATE); /* Check for error. */ if (status) error_counter++; /* Receive a TCP message from the socket. */ while (nx_tcp_socket_receive(&server_socket, &packet_ptr, 5 * NX_IP_PERIODIC_RATE) == NX_SUCCESS) { if(packet_ptr -> nx_packet_length == 0) error_counter++; memcpy(&rcv_buffer[recv_length], packet_ptr -> nx_packet_prepend_ptr, packet_ptr -> nx_packet_length); recv_length += packet_ptr -> nx_packet_length; /* Release the packet. */ nx_packet_release(packet_ptr); } if(recv_length != 114) error_counter++; if(memcmp(rcv_buffer, (void*)MSG, recv_length)) error_counter++; #ifndef NX_DISABLE_PACKET_INFO /* Check packet pool state. */ if(pool_0.nx_packet_pool_invalid_releases) error_counter++; #endif /* Determine if the test was successful. */ if (error_counter) { printf("ERROR!\n"); test_control_return(1); } else { printf("SUCCESS!\n"); test_control_return(0); } } static void thread_1_connect_received(NX_TCP_SOCKET *socket_ptr, UINT port) { /* Check for the proper socket and port. */ if ((socket_ptr != &server_socket) || (port != 12)) error_counter++; } static void thread_1_disconnect_received(NX_TCP_SOCKET *socket) { /* Check for proper disconnected socket. */ if (socket != &server_socket) error_counter++; } #else #ifdef CTEST VOID test_application_define(void *first_unused_memory) #else void netx_tcp_overlapping_packet_test_application_define(void *first_unused_memory) #endif { printf("NetX Test: TCP Overlapping Packet Test 1.............................N/A\n"); test_control_return(3); } #endif