/* This NetX test concentrates on the basic DNS operation. Unencode invalid string. */ /* Frame (125 bytes) */ static unsigned char invalid_ptr_response_0[125] = { 0xf4, 0x8e, 0x38, 0xa3, 0xab, 0xf6, 0x8c, 0xec, /* ..8..... */ 0x4b, 0x68, 0xd1, 0xfe, 0x08, 0x00, 0x45, 0x00, /* Kh....E. */ 0x00, 0x6f, 0x1a, 0x9a, 0x40, 0x00, 0x40, 0x11, /* .o..@.@. */ 0xd6, 0x2e, 0xc0, 0xa8, 0x64, 0x02, 0xc0, 0xa8, /* ....d... */ 0x64, 0x62, 0x00, 0x35, 0xef, 0x67, 0x00, 0x5b, /* db.5.g.[ */ 0x7e, 0xb5, 0x00, 0x02, 0x81, 0x80, 0x00, 0x01, /* ~....... */ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x31, /* .......1 */ 0x34, 0x03, 0x32, 0x30, 0x33, 0x02, 0x35, 0x38, /* 4.203.58 */ 0x03, 0x32, 0x31, 0x36, 0x07, 0x69, 0x6e, 0x2d, /* .216.in- */ 0x61, 0x64, 0x64, 0x72, 0x04, 0x61, 0x72, 0x70, /* addr.arp */ 0x61, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x02, 0x31, /* a......1 */ 0x34, 0x03, 0x32, 0x30, 0x33, 0x02, 0x35, 0x38, /* 4.203.58 */ 0x03, 0x32, 0x31, 0x36, 0x07, 0x69, 0x6e, 0x2d, /* .216.in- */ 0x61, 0x64, 0x64, 0x72, 0x04, 0x61, 0x72, 0x70, /* addr.arp */ 0x61, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, /* a....... */ 0x95, 0x04, 0x00, 0x01, 0x00 /* ..... */ }; /* Frame-2 (128 bytes) */ static unsigned char invalid_ptr_response_1[128] = { 0xf4, 0x8e, 0x38, 0xa3, 0xab, 0xf6, 0x8c, 0xec, /* ..8..... */ 0x4b, 0x68, 0xd1, 0xfe, 0x08, 0x00, 0x45, 0x00, /* Kh....E. */ 0x00, 0x6f, 0x1a, 0x9a, 0x40, 0x00, 0x40, 0x11, /* .o..@.@. */ 0xd6, 0x2e, 0xc0, 0xa8, 0x64, 0x02, 0xc0, 0xa8, /* ....d... */ 0x64, 0x62, 0x00, 0x35, 0xef, 0x67, 0x00, 0x5b, /* db.5.g.[ */ 0x7e, 0xb5, 0x00, 0x02, 0x81, 0x80, 0x00, 0x01, /* ~....... */ 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x31, /* .......1 */ 0x34, 0x03, 0x32, 0x30, 0x33, 0x02, 0x35, 0x38, /* 4.203.58 */ 0x03, 0x32, 0x31, 0x36, 0x07, 0x69, 0x6e, 0x2d, /* .216.in- */ 0x61, 0x64, 0x64, 0x72, 0x04, 0x61, 0x72, 0x70, /* addr.arp */ 0x61, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x02, 0x31, /* a......1 */ 0x34, 0x03, 0x32, 0x30, 0x33, 0x02, 0x35, 0x38, /* 4.203.58 */ 0x03, 0x32, 0x31, 0x36, 0x07, 0x69, 0x6e, 0x2d, /* .216.in- */ 0x61, 0x64, 0x64, 0x72, 0x04, 0x61, 0x72, 0x70, /* addr.arp */ 0x61, 0x00, 0x00, 0x0c, 0x00, 0x01, 0x00, 0x00, /* a....... */ 0x95, 0x04, 0x00, 0x01, 0xc0, 0x54, 0xc0, 0x52 /* ..... */ }; #include "tx_api.h" #include "nx_api.h" #include "nx_udp.h" #include "nxd_dns.h" #include "nx_ram_network_driver_test_1500.h" extern void test_control_return(UINT status); #ifndef NX_DISABLE_IPV4 #define DEMO_STACK_SIZE 2048 /* 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 client_ip; static NX_IP server_ip; static NX_UDP_SOCKET server_socket; static NX_DNS client_dns; #ifdef NX_DNS_CLIENT_USER_CREATE_PACKET_POOL NX_PACKET_POOL client_pool; #endif /* Define the counters used in the demo application... */ static UINT status; static ULONG error_counter; /* Define thread prototypes. */ static void thread_0_entry(ULONG thread_input); static void thread_1_entry(ULONG thread_input); extern void _nx_ram_network_driver_512(struct NX_IP_DRIVER_STRUCT *driver_req); #define DNS_START_OFFSET (14 + 20 + 8) /* Define what the initial system looks like. */ #ifdef CTEST VOID test_application_define(void *first_unused_memory) #else void netx_dns_invalid_name_unencode_test_application_define(void *first_unused_memory) #endif { CHAR *pointer; /* Setup the working pointer. */ pointer = (CHAR *) first_unused_memory; /* Create the DNS 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; /* . */ tx_thread_create(&thread_1, "thread 1", thread_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", 1500, pointer, 8192); pointer = pointer + 8192; #ifdef NX_DNS_CLIENT_USER_CREATE_PACKET_POOL /* Create the packet pool for the DNS Client to send packets. If the DNS Client is configured for letting the host application create the DNS packet pool, (see NX_DNS_CLIENT_USER_CREATE_PACKET_POOL option), see nx_dns_create() for guidelines on packet payload size and pool size. packet traffic for NetX Duo processes. */ status = nx_packet_pool_create(&client_pool, "DNS Client Packet Pool", NX_DNS_PACKET_PAYLOAD, pointer, NX_DNS_PACKET_POOL_SIZE); pointer = pointer + NX_DNS_PACKET_POOL_SIZE; /* Check for pool creation error. */ if (status) return; #endif /* Check for pool creation error. */ if (status) error_counter++; /* Create an IP instance. */ status = nx_ip_create(&client_ip, "NetX IP Instance 0", IP_ADDRESS(192, 168, 100, 98), 0xFFFF0000UL, &pool_0, _nx_ram_network_driver_512, pointer, 2048, 1); pointer = pointer + 2048; /* Create another IP instance. */ status += nx_ip_create(&server_ip, "NetX IP Instance 1", IP_ADDRESS(192, 168, 100, 2), 0xFFFF0000UL, &pool_0, _nx_ram_network_driver_512, pointer, 2048, 1); pointer = pointer + 2048; /* Check for IP create errors. */ if (status) error_counter++; /* Enable ARP and supply ARP cache memory for IP Instance 0. */ status = nx_arp_enable(&client_ip, (void *) pointer, 1024); pointer = pointer + 1024; /* Enable ARP and supply ARP cache memory for IP Instance 1. */ status += nx_arp_enable(&server_ip, (void *) pointer, 1024); pointer = pointer + 1024; /* Check for ARP enable errors. */ if (status) error_counter++; /* Enable UDP traffic. */ status = nx_udp_enable(&client_ip); status += nx_udp_enable(&server_ip); /* Check for UDP enable errors. */ if (status) error_counter++; } /* Define the test threads. */ static void thread_0_entry(ULONG thread_input) { UCHAR host_name[300]; UINT i; /* Print out some test information banners. */ printf("NetX Test: DNS Invalid Name Unencode Test............................"); /* Check for earlier error. */ if(error_counter) { printf("ERROR!\n"); test_control_return(1); } /* Create a DNS instance for the Client. Note this function will create the DNS Client packet pool for creating DNS message packets intended for querying its DNS server. */ status = nx_dns_create(&client_dns, &client_ip, (UCHAR *)"DNS Client"); /* Check status. */ if(status) { printf("ERROR!\n"); test_control_return(1); } /* Is the DNS client configured for the host application to create the pecket pool? */ #ifdef NX_DNS_CLIENT_USER_CREATE_PACKET_POOL /* Yes, use the packet pool created above which has appropriate payload size for DNS messages. */ status = nx_dns_packet_pool_set(&client_dns, &client_pool); /* Check for set DNS packet pool error. */ if(status) { printf("ERROR!\n"); test_control_return(1); } #endif /* NX_DNS_CLIENT_USER_CREATE_PACKET_POOL */ /* Add an IPv4 server address to the Client list. */ status = nx_dns_server_add(&client_dns, IP_ADDRESS(192, 168, 100, 2)); /* Check status. */ if(status) { printf("ERROR!\n"); test_control_return(1); } host_name[0] = '.'; host_name[1] = '.'; host_name[2] = '.'; host_name[3] = '.'; for (i = 0; i < 2; i++) { /* Send DNS PTR query, response invalid name. */ status = nx_dns_host_by_address_get(&client_dns, IP_ADDRESS(216, 58, 203, 14), &host_name[4], 256, NX_IP_PERIODIC_RATE); /* Sleep 1s to check if crash. */ tx_thread_sleep(NX_IP_PERIODIC_RATE); /* Check status. */ if(status == NX_SUCCESS) { printf("ERROR!\n"); test_control_return(1); } /* Determine if the test was successful. */ if(error_counter) { printf("ERROR!\n"); test_control_return(1); } } printf("SUCCESS!\n"); test_control_return(0); } static void thread_1_entry(ULONG thread_input) { NX_PACKET *my_packet; UINT port; USHORT nx_dns_transmit_id; UCHAR *data_ptr; NX_PACKET *response_packet[2]; UINT i; UCHAR *invalid_ptr_response; UINT response_len; /* Create a UDP socket act as the DNS server. */ status = nx_udp_socket_create(&server_ip, &server_socket, "Socket 1", NX_IP_NORMAL, NX_FRAGMENT_OKAY, 0x80, 5); /* Check status. */ if (status) { error_counter++; } /* Bind the UDP socket to the IP port. */ status = nx_udp_socket_bind(&server_socket, 53, TX_WAIT_FOREVER); /* Act as the DNS server to receive the DNS query and send the DNS response. */ for (i = 0; i < 2; i++) { /* Receive a UDP packet. */ status = nx_udp_socket_receive(&server_socket, &my_packet, 10 * NX_IP_PERIODIC_RATE); /* Check status. */ if (status) { error_counter++; return; } /* Get the DNS client UDP port. */ status = nx_udp_packet_info_extract(my_packet, NX_NULL, NX_NULL, &port, NX_NULL); /* Check status. */ if (status) { error_counter++; return; } /* Get the DNS transmit ID. */ data_ptr = my_packet -> nx_packet_prepend_ptr + NX_DNS_ID_OFFSET; nx_dns_transmit_id = *data_ptr++; nx_dns_transmit_id = (USHORT)((nx_dns_transmit_id << 8) | *data_ptr); /* Release the packet. */ nx_packet_release(my_packet); /* Send the DNS response packet. */ /* Allocate a response packet. */ status = nx_packet_allocate(&pool_0, &response_packet[i], NX_UDP_PACKET, TX_WAIT_FOREVER); /* Check status. */ if (status) { error_counter++; return; } if (i == 0) { invalid_ptr_response = invalid_ptr_response_0; response_len = 125; } else { invalid_ptr_response = invalid_ptr_response_1; response_len = 128; } /* Write the DNS response messages into the packet payload! */ memcpy(response_packet[i] -> nx_packet_prepend_ptr, invalid_ptr_response + DNS_START_OFFSET, response_len - DNS_START_OFFSET); /* Adjust the write pointer. */ response_packet[i] -> nx_packet_length = response_len - DNS_START_OFFSET; response_packet[i] -> nx_packet_append_ptr = response_packet[i] -> nx_packet_prepend_ptr + response_packet[i] -> nx_packet_length; /* Update the DNS transmit ID. */ data_ptr = response_packet[i] -> nx_packet_prepend_ptr + NX_DNS_ID_OFFSET; *data_ptr++ = (UCHAR)(nx_dns_transmit_id >> 8); *data_ptr = (UCHAR)nx_dns_transmit_id; /* Send the UDP packet with the correct port. */ status = nx_udp_socket_send(&server_socket, response_packet[i], IP_ADDRESS(192, 168, 100, 98), port); /* Check the status. */ if (status) { error_counter++; nx_packet_release(response_packet[i]); return; } } /* Unbind the UDP socket. */ status = nx_udp_socket_unbind(&server_socket); /* Check status. */ if (status) { error_counter++; return; } /* Delete the UDP socket. */ status = nx_udp_socket_delete(&server_socket); /* Check status. */ if (status) { error_counter++; return; } /* Let the DNS threads execute. */ tx_thread_relinquish(); } #else #ifdef CTEST VOID test_application_define(void *first_unused_memory) #else void netx_dns_invalid_name_unencode_test_application_define(void *first_unused_memory) #endif { /* Print out test information banner. */ printf("NetX Test: DNS Invalid Name Unencode Test............................N/A\n"); test_control_return(3); } #endif