/***************************************************************************/ /* 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 case test if the tcp connections has been reset after interface detachment. */ #include "tx_api.h" #include "nx_api.h" #include "nx_tcp.h" #include "nx_ip.h" #include "nx_ram_network_driver_test_1500.h" extern void test_control_return(UINT status); #if defined(__PRODUCT_NETXDUO__) && (NX_MAX_PHYSICAL_INTERFACES > 1) && !defined(NX_DISABLE_IPV4) #define DEMO_STACK_SIZE 2048 /* Define the ThreadX and NetX object control blocks... */ static TX_THREAD ntest_0; static TX_THREAD ntest_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 test application... */ static ULONG error_counter; static ULONG syn_ack_counter; static ULONG ack_drop_counter; /* Define thread prototypes. */ static void ntest_0_entry(ULONG thread_input); static void ntest_1_entry(ULONG thread_input); extern void _nx_ram_network_driver_1500(struct NX_IP_DRIVER_STRUCT *driver_req); 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 void my_tcp_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_ip_interface_detachment_tcp_connection_test_application_define(void *first_unused_memory) #endif { CHAR *pointer; UINT status; /* Setup the working pointer. */ pointer = (CHAR *) first_unused_memory; error_counter = 0; syn_ack_counter = 0; ack_drop_counter = 0; /* Create the main threads. */ tx_thread_create(&ntest_0, "thread 0", ntest_0_entry, 0, pointer, DEMO_STACK_SIZE, 3, 3, TX_NO_TIME_SLICE, TX_AUTO_START); pointer = pointer + DEMO_STACK_SIZE; tx_thread_create(&ntest_1, "thread 1", ntest_1_entry, 0, pointer, DEMO_STACK_SIZE, 5, 5, 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, 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, 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_1500, pointer, 2048, 2); pointer = pointer + 2048; if (status) error_counter++; /* Attach the 2nd interface to IP instance0 */ status = nx_ip_interface_attach(&ip_0, "2nd interface", IP_ADDRESS(4, 3, 2, 10), 0xFF000000, _nx_ram_network_driver); if(status != NX_SUCCESS) error_counter++; /* Attach the 2nd interface to IP instance1 */ status = nx_ip_interface_attach(&ip_1, "2nd interface", IP_ADDRESS(4, 3, 2, 11), 0xFF000000, _nx_ram_network_driver_1500); if(status != NX_SUCCESS) 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 TCP processing for both IP instances. */ status = nx_tcp_enable(&ip_0); status += nx_tcp_enable(&ip_1); if(status) error_counter++; } /* Define the test threads. */ static void ntest_0_entry(ULONG thread_input) { UINT status; ULONG actual_status; printf("NetX Test: IP Interface Detachment TCP connection Test..............."); /* Check earlier error. */ if(error_counter) { printf("ERROR!\n"); test_control_return(1); } /* Ensure the IP instance has been initialized. */ status = nx_ip_status_check(&ip_0, NX_IP_INITIALIZE_DONE, &actual_status, NX_IP_PERIODIC_RATE); if(status) error_counter++; status = nx_tcp_socket_create(&ip_0, &server_socket, "Server Socket", NX_IP_NORMAL, NX_FRAGMENT_OKAY, NX_IP_TIME_TO_LIVE, 100, NX_NULL, NX_NULL); if(status) error_counter++; status = nx_tcp_server_socket_listen(&ip_0, 12, &server_socket, 5, NX_NULL); if(status) error_counter++; status = nx_tcp_server_socket_accept(&server_socket, NX_NO_WAIT); if(status != NX_IN_PROGRESS) error_counter++; /* Detach the 2nd interface(4.3.2.10) from ip_0. */ status = nx_ip_interface_detach(&ip_0, 1); if(status) error_counter++; /* Detachment should not reset the listening TCP socket. */ if(server_socket.nx_tcp_socket_state != NX_TCP_SYN_RECEIVED) error_counter++; /* Attach the 2nd interface(4.3.2.10) removed before to ip_0. */ nx_ip_interface_attach(&ip_0, "2nd interface", IP_ADDRESS(4, 3, 2, 10), 0xFF000000, _nx_ram_network_driver); /* ntest_0 relinquishes the CPU. */ tx_thread_suspend(&ntest_0); /* Check if server is SYN_RECV. Now, the server has receiced a SYN. */ if(server_socket.nx_tcp_socket_state != NX_TCP_SYN_RECEIVED) error_counter++; /* Detach the 2nd interface(4.3.2.10) from ip_0. */ status = nx_ip_interface_detach(&ip_0, 1); if(status) error_counter++; /* Detachment should reset the TCP server socket which is in connection building progress . */ if(server_socket.nx_tcp_socket_state != NX_TCP_LISTEN_STATE) error_counter++; /* Attach the 2nd interface(4.3.2.10) removed before to ip_0. */ nx_ip_interface_attach(&ip_0, "2nd interface", IP_ADDRESS(4, 3, 2, 10), 0xFF000000, _nx_ram_network_driver); /* ntest_0 relinquished the CPU. */ tx_thread_suspend(&ntest_0); status = nx_tcp_server_socket_unaccept(&server_socket); /* Relisten the TCP server socket. */ status += nx_tcp_server_socket_relisten(&ip_0, 12, &server_socket); status += nx_tcp_server_socket_accept(&server_socket, 5 * NX_IP_PERIODIC_RATE); if(status) error_counter++; if(server_socket.nx_tcp_socket_state != NX_TCP_ESTABLISHED) error_counter++; /* Detach the 2nd interface(4.3.2.10) from ip_0. */ status = nx_ip_interface_detach(&ip_0, 1); if(status) error_counter++; /* Detachment should reset the established TCP connection. */ if(server_socket.nx_tcp_socket_state != NX_TCP_LISTEN_STATE) error_counter++; /* ntest_0 relinquished the CPU. */ tx_thread_suspend(&ntest_0); /* Clean. */ status = nx_tcp_server_socket_unaccept(&server_socket); status += nx_tcp_server_socket_unlisten(&ip_0, 12); status += nx_tcp_socket_delete(&server_socket); if(status) error_counter++; if((error_counter) || (syn_ack_counter != 1) || (ack_drop_counter != 1)) { printf("ERROR!\n"); test_control_return(1); } else { printf("SUCCESS!\n"); test_control_return(0); } } static void ntest_1_entry(ULONG thread_input) { UINT status; ULONG actual_status; /* Ensure the IP instance has been initialized. */ status = nx_ip_status_check(&ip_1, NX_IP_INITIALIZE_DONE, &actual_status, NX_IP_PERIODIC_RATE); if(status) error_counter++; status = nx_tcp_socket_create(&ip_1, &client_socket, "Client Socket", NX_IP_NORMAL, NX_FRAGMENT_OKAY, NX_IP_TIME_TO_LIVE, 200, NX_NULL, NX_NULL); status += nx_tcp_client_socket_bind(&client_socket, 12, NX_IP_PERIODIC_RATE); if(status) error_counter++; /* Deal the packet with my routing. */ advanced_packet_process_callback = my_packet_process; /* Deal the packet with my routing. */ ip_1.nx_ip_tcp_packet_receive = my_tcp_packet_receive; /* Attempt to connect the socket. */ status = nx_tcp_client_socket_connect(&client_socket, IP_ADDRESS(4, 3, 2, 10), 12, NX_NO_WAIT); if(status != NX_IN_PROGRESS) error_counter++; /* ntest_1 relinquishes the CPU. */ tx_thread_resume(&ntest_0); /* Detach the 2nd interface(4.3.2.11) from ip_1. */ status = nx_ip_interface_detach(&ip_1, 1); if(status) error_counter++; /* Detachment should reset the TCP server socket which is in connection building progress . */ if(client_socket.nx_tcp_socket_state != NX_TCP_CLOSED) error_counter++; /* Attach the 2nd interface(4.3.2.11) removed before to ip_1. */ nx_ip_interface_attach(&ip_1, "2nd interface", IP_ADDRESS(4, 3, 2, 11), 0xFF000000, _nx_ram_network_driver_1500); /* ntest_1 relinquishes the CPU. */ tx_thread_resume(&ntest_0); /* Attempt to connect the socket again. */ status = nx_tcp_client_socket_connect(&client_socket, IP_ADDRESS(4, 3, 2, 10), 12, 5 * NX_IP_PERIODIC_RATE); if(status) error_counter++; if(client_socket.nx_tcp_socket_state != NX_TCP_ESTABLISHED) error_counter++; /* Detach the 2nd interface(4.3.2.11) from ip_1. */ status = nx_ip_interface_detach(&ip_1, 1); if(status) error_counter++; /* Detachment should reset the established TCP connection. */ if(client_socket.nx_tcp_socket_state != NX_TCP_CLOSED) error_counter++; /* Clean. */ status = nx_tcp_client_socket_unbind(&client_socket); status += nx_tcp_socket_delete(&client_socket); if(status) error_counter++; /* ntest_1 relinquishes the CPU. */ tx_thread_resume(&ntest_0); } static void my_tcp_packet_receive(NX_IP *ip_ptr, NX_PACKET *packet_ptr) { NX_TCP_HEADER *tcp_header_ptr; /* Point to TCP HEADER. */ tcp_header_ptr = (NX_TCP_HEADER *)packet_ptr -> nx_packet_prepend_ptr; NX_CHANGE_ULONG_ENDIAN(tcp_header_ptr ->nx_tcp_header_word_3); if((tcp_header_ptr -> nx_tcp_header_word_3 & NX_TCP_SYN_BIT) && (tcp_header_ptr -> nx_tcp_header_word_3 & NX_TCP_ACK_BIT)) { syn_ack_counter++; ip_ptr -> nx_ip_tcp_packet_receive = _nx_tcp_packet_receive; } NX_CHANGE_ULONG_ENDIAN(tcp_header_ptr ->nx_tcp_header_word_3); /* Let server receives the packet. */ _nx_tcp_packet_receive(ip_ptr, packet_ptr); } static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr, UINT *operation_ptr, UINT *delay_ptr) { NX_TCP_HEADER *tcp_header_ptr; if(syn_ack_counter == 1) { /* Point to TCP HEADER. */ tcp_header_ptr = (NX_TCP_HEADER *)((packet_ptr -> nx_packet_prepend_ptr) + 20); NX_CHANGE_ULONG_ENDIAN(tcp_header_ptr -> nx_tcp_header_word_3); if((tcp_header_ptr -> nx_tcp_header_word_3 & NX_TCP_ACK_BIT)) { /* Drop the ACK packet in order to postpone the connection. */ *operation_ptr = NX_RAMDRIVER_OP_DROP; ack_drop_counter++; advanced_packet_process_callback = NULL; } NX_CHANGE_ULONG_ENDIAN(tcp_header_ptr -> nx_tcp_header_word_3); } return NX_TRUE; } #else #ifdef CTEST VOID test_application_define(void *first_unused_memory) #else void netx_ip_interface_detachment_tcp_connection_test_application_define(void *first_unused_memory) #endif { printf("NetX Test: IP Interface Detachment TCP connection Test...............N/A\n"); test_control_return(3); } #endif