/***************************************************************************/ /* 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 */ /***************************************************************************/ /* 15.03 If a retransmitted packet is identical to the original packet, then the same IP identification field MAY be used. */ /* Procedure 1. Set 'nx_ipv4_packet_receive' pointer of server ip instance to 'my_ipv4_packet_receive_15_03' to deal with ip packet. 2. Client sends data to server. 3. Server drop the data packet in 'my_ipv4_packet_receive_15_03'. 4. Client retransmits data to server. 5. Server compares the TCP data and in 'my_ipv4_packet_receive_15_03' IP identification field. */ /* Warning: NetX does not use the same IP identification. */ #include "tx_api.h" #include "nx_api.h" extern void test_control_return(UINT status); #if !defined(NX_ENABLE_INTERFACE_CAPABILITY) && !defined(NX_DISABLE_TCP_TX_CHECKSUM) && !defined(NX_DISABLE_TCP_RX_CHECKSUM) && !defined(NX_DISABLE_IPV4) #include "nx_tcp.h" #if defined(__PRODUCT_NETXDUO__) #include "nx_ipv4.h" #else #include "nx_ip.h" #endif #include "nx_ram_network_driver_test_1500.h" #define DEMO_STACK_SIZE 2048 #define MSG "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" /* 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 demo application... */ static ULONG error_counter; static ULONG expected_id; static ULONG drop_counter; static ULONG is_identical_id; static ULONG data_counter; /* Define thread prototypes. */ static void ntest_0_entry(ULONG thread_input); static void ntest_1_entry(ULONG thread_input); static void ntest_1_connect_received(NX_TCP_SOCKET *server_socket, UINT port); static void ntest_1_disconnect_received(NX_TCP_SOCKET *server_socket); 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_15_03(NX_IP *ip_ptr, NX_PACKET *packet_ptr, UINT *operation_ptr, UINT *delay_ptr); extern void _nx_ram_network_driver_1500(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_15_03_application_define(void *first_unused_memory) #endif { CHAR *pointer; UINT status; /* Setup the working pointer. */ pointer = (CHAR *) first_unused_memory; error_counter = 0; drop_counter = 0; is_identical_id = NX_FALSE; data_counter = 0; expected_id = 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; /* Create the main thread. */ tx_thread_create(&ntest_1, "thread 1", ntest_1_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", 256, pointer, 8192); pointer = pointer + 8192; if(status) error_counter++; /* Create another 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_1500, pointer, 2048, 1); pointer = pointer + 2048; if(status) error_counter++; /* Create an 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, 1); pointer = pointer + 2048; if(status) error_counter++; /* Enable ARP and supply ARP cache memory for IP Instance 1. */ 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 0. */ 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); if(status) error_counter++; status = nx_tcp_enable(&ip_1); /* 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: TCP Spec 15.03 Test......................................."); /* 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_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; /* Attempt to connect the socket. */ status = nx_tcp_client_socket_connect(&client_socket, IP_ADDRESS(1, 2, 3, 5), 12, 2 * NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; advanced_packet_process_callback = my_packet_process_15_03; /* Create a packet to send. */ status = nx_packet_allocate(&pool_0, &my_packet, NX_TCP_PACKET, NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; status = nx_packet_data_append(my_packet, MSG, 20, &pool_0, NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; /* Send packet to server. */ status = nx_tcp_socket_send(&client_socket, my_packet, NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; tx_thread_suspend(&ntest_0); /* Disconnect this socket. */ status = nx_tcp_socket_disconnect(&client_socket, NX_IP_PERIODIC_RATE); if(status) error_counter++; /* Unbind the socket. */ status = nx_tcp_client_socket_unbind(&client_socket); if(status) error_counter++; /* Delete the socket. */ status = nx_tcp_socket_delete(&client_socket); /* Check for error. */ if(status) error_counter++; /* Determine if the test was successful. */ if((error_counter !=0) || (drop_counter != 1) || (data_counter == 0)) { printf("ERROR!\n"); test_control_return(1); } else if(is_identical_id != NX_TRUE) { printf("WARNING!\n"); test_control_return(2); } else { printf("SUCCESS!\n"); test_control_return(0); } } static void ntest_1_entry(ULONG thread_input) { UINT status; NX_PACKET *packet_ptr; 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); /* Check for earlier error. */ if(error_counter) { printf("ERROR!\n"); 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, ntest_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, ntest_1_connect_received); /* Check for error. */ if(status) error_counter++; /* If accept return successfully, the connection has established. */ status = nx_tcp_server_socket_accept(&server_socket, NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; tx_thread_suspend(&ntest_1); /* Receive a TCP message from the socket. */ status = nx_tcp_socket_receive(&server_socket, &packet_ptr, 2 * NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; else { if((packet_ptr -> nx_packet_length == 20) && (!memcmp(packet_ptr -> nx_packet_prepend_ptr, MSG, 20))) data_counter++; /* Release the packet. */ nx_packet_release(packet_ptr); } /* Disconnect the server socket. */ status = nx_tcp_socket_disconnect(&server_socket, NX_IP_PERIODIC_RATE); /* Check for error. */ if(status) error_counter++; status = nx_tcp_server_socket_unaccept(&server_socket); /* Check for error. */ if(status) error_counter++; /* Unlisten on the server port. */ status = nx_tcp_server_socket_unlisten(&ip_1, 12); /* Check for error. */ if (status) error_counter++; /* Delete the socket. */ status = nx_tcp_socket_delete(&server_socket); /* Check for error. */ if(status) error_counter++; } static void ntest_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 ntest_1_disconnect_received(NX_TCP_SOCKET *socket) { /* Check for proper disconnected socket. */ if(socket != &server_socket) error_counter++; } static UINT my_packet_process_15_03(NX_IP *ip_ptr, NX_PACKET *packet_ptr, UINT *operation_ptr, UINT *delay_ptr) { #if defined(__PRODUCT_NETXDUO__) NX_IPV4_HEADER *ip_header_ptr = (NX_IPV4_HEADER*)(packet_ptr -> nx_packet_prepend_ptr); #else NX_IP_HEADER *ip_header_ptr = (NX_IP_HEADER*)(packet_ptr -> nx_packet_prepend_ptr); #endif /* Drop the packet. */ if ((packet_ptr -> nx_packet_length - 40 == 20) && (!memcmp(packet_ptr -> nx_packet_prepend_ptr + 40, MSG, 20))) { if(drop_counter == 0) { /* Record the packet's IP identification. */ expected_id = (ip_header_ptr -> nx_ip_header_word_1 & NX_LOWER_16_MASK); *operation_ptr = NX_RAMDRIVER_OP_DROP; drop_counter++; } else { if(expected_id == (ip_header_ptr -> nx_ip_header_word_1 & NX_LOWER_16_MASK)) is_identical_id = NX_TRUE; advanced_packet_process_callback = NX_NULL; /* Wake up server and client threads. */ tx_thread_resume(&ntest_0); tx_thread_resume(&ntest_1); } } return NX_TRUE; } #else #ifdef CTEST VOID test_application_define(void *first_unused_memory) #else void netx_15_03_application_define(void *first_unused_memory) #endif { printf("NetX Test: TCP Spec 15.03 Test.......................................N/A\n"); test_control_return(3); } #endif