Doug Anson / mbedEndpointNetwork

Ethernet-based network support for mbedConnectorInterface.

Dependencies:   libnsdl EthernetInterface mbed-rtos

Dependents:   IoT_LED_demo ServoTest uWater_Project hackathon ... more

NSDL/nsdl_support.cpp@3:3e1ad8ab5071, 2015-02-02 (annotated)

Committer:
ansond
Date:
Mon Feb 02 07:02:04 2015 +0000
Revision:
3:3e1ad8ab5071
Parent:
1:cb681dfa1678
Child:
4:c1fd1d5f18a1
updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 0:31292d956e92 1 // NSDL library support functions
ansond 0:31292d956e92 2
ansond 0:31292d956e92 3 #include "mbed.h"
ansond 0:31292d956e92 4 #include "nsdl_support.h"
ansond 0:31292d956e92 5
ansond 0:31292d956e92 6 #include "mbedConnectorInterface.h"
ansond 0:31292d956e92 7
ansond 0:31292d956e92 8 // we have to redefine DBG as its used differently here...
ansond 0:31292d956e92 9 #ifdef DBG
ansond 0:31292d956e92 10 #undef DBG
ansond 0:31292d956e92 11 #endif
ansond 1:cb681dfa1678 12 #define DBG std::printf
ansond 0:31292d956e92 13
ansond 0:31292d956e92 14 Endpoint nsp;
ansond 0:31292d956e92 15 UDPSocket server;
ansond 0:31292d956e92 16
ansond 0:31292d956e92 17 void *nsdl_alloc(uint16_t size) {
ansond 0:31292d956e92 18 void *chunk = NULL;
ansond 0:31292d956e92 19 if (size > 0) chunk = malloc(size);
ansond 0:31292d956e92 20 if (chunk != NULL && size > 0) memset(chunk,0,size);
ansond 0:31292d956e92 21 return chunk;
ansond 0:31292d956e92 22 }
ansond 0:31292d956e92 23
ansond 0:31292d956e92 24 void nsdl_free(void* ptr_to_free) {
ansond 0:31292d956e92 25 if (ptr_to_free != NULL) free(ptr_to_free);
ansond 0:31292d956e92 26 }
ansond 0:31292d956e92 27
ansond 0:31292d956e92 28 /*
ansond 0:31292d956e92 29 * Create a static resoure
ansond 0:31292d956e92 30 * Only get is allowed
ansond 0:31292d956e92 31 */
ansond 0:31292d956e92 32 void nsdl_create_static_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t *rsc, uint16_t rsc_len)
ansond 0:31292d956e92 33 {
ansond 0:31292d956e92 34 resource_structure->access = SN_GRS_GET_ALLOWED;
ansond 0:31292d956e92 35 resource_structure->mode = SN_GRS_STATIC;
ansond 0:31292d956e92 36 resource_structure->pathlen = pt_len;
ansond 0:31292d956e92 37 resource_structure->path = pt;
ansond 0:31292d956e92 38 resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
ansond 0:31292d956e92 39 resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
ansond 0:31292d956e92 40 resource_structure->resource = rsc;
ansond 0:31292d956e92 41 resource_structure->resourcelen = rsc_len;
ansond 0:31292d956e92 42 sn_nsdl_create_resource(resource_structure);
ansond 0:31292d956e92 43 }
ansond 0:31292d956e92 44
ansond 0:31292d956e92 45 void nsdl_create_dynamic_resource(sn_nsdl_resource_info_s *resource_structure, uint16_t pt_len, uint8_t *pt, uint16_t rpp_len, uint8_t *rpp_ptr, uint8_t is_observable, sn_grs_dyn_res_callback_t callback_ptr, int access_right)
ansond 0:31292d956e92 46 {
ansond 0:31292d956e92 47 resource_structure->access = (sn_grs_resource_acl_e)access_right;
ansond 0:31292d956e92 48 resource_structure->resource = 0;
ansond 0:31292d956e92 49 resource_structure->resourcelen = 0;
ansond 0:31292d956e92 50 resource_structure->sn_grs_dyn_res_callback = callback_ptr;
ansond 0:31292d956e92 51 resource_structure->mode = SN_GRS_DYNAMIC;
ansond 0:31292d956e92 52 resource_structure->pathlen = pt_len;
ansond 0:31292d956e92 53 resource_structure->path = pt;
ansond 0:31292d956e92 54 resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
ansond 0:31292d956e92 55 resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
ansond 0:31292d956e92 56 resource_structure->resource_parameters_ptr->observable = is_observable;
ansond 0:31292d956e92 57 sn_nsdl_create_resource(resource_structure);
ansond 0:31292d956e92 58 }
ansond 0:31292d956e92 59
ansond 1:cb681dfa1678 60 sn_nsdl_ep_parameters_s* nsdl_init_register_endpoint(sn_nsdl_ep_parameters_s *endpoint_structure, uint8_t *domain, uint8_t* name, uint8_t* typename_ptr, uint8_t *lifetime_ptr) {
ansond 0:31292d956e92 61 if (endpoint_structure == NULL) {
ansond 0:31292d956e92 62 endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s));
ansond 0:31292d956e92 63 }
ansond 0:31292d956e92 64
ansond 0:31292d956e92 65 if (endpoint_structure != NULL) {
ansond 0:31292d956e92 66 memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s));
ansond 0:31292d956e92 67 endpoint_structure->endpoint_name_ptr = name;
ansond 0:31292d956e92 68 endpoint_structure->endpoint_name_len = strlen((char*)name);
ansond 1:cb681dfa1678 69 endpoint_structure->domain_name_ptr = domain;
ansond 1:cb681dfa1678 70 endpoint_structure->domain_name_len = strlen((char *)domain);
ansond 0:31292d956e92 71 endpoint_structure->type_ptr = typename_ptr;
ansond 0:31292d956e92 72 endpoint_structure->type_len = strlen((char*)typename_ptr);
ansond 0:31292d956e92 73 endpoint_structure->lifetime_ptr = lifetime_ptr;
ansond 0:31292d956e92 74 endpoint_structure->lifetime_len = strlen((char*)lifetime_ptr);
ansond 0:31292d956e92 75 }
ansond 0:31292d956e92 76
ansond 0:31292d956e92 77 return endpoint_structure;
ansond 0:31292d956e92 78 }
ansond 0:31292d956e92 79
ansond 0:31292d956e92 80 void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure) {
ansond 0:31292d956e92 81 if (endpoint_structure != NULL) {
ansond 0:31292d956e92 82 if (*endpoint_structure != NULL) {
ansond 0:31292d956e92 83 nsdl_free(*endpoint_structure);
ansond 0:31292d956e92 84 *endpoint_structure = NULL;
ansond 0:31292d956e92 85 }
ansond 0:31292d956e92 86 }
ansond 0:31292d956e92 87 }
ansond 0:31292d956e92 88
ansond 0:31292d956e92 89 static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t data_len, sn_nsdl_addr_s *address_ptr) {
ansond 1:cb681dfa1678 90 //DBG("NSP: sending %d bytes...\r\n",data_len);
ansond 0:31292d956e92 91 int sent = server.sendTo(nsp, (char*)data_ptr, data_len);
ansond 0:31292d956e92 92 return 1;
ansond 0:31292d956e92 93 }
ansond 0:31292d956e92 94
ansond 0:31292d956e92 95 static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr) {
ansond 0:31292d956e92 96 // Rx callback process it...
ansond 1:cb681dfa1678 97 //DBG("NSP: received data. processing...\r\n");
ansond 0:31292d956e92 98 return 0;
ansond 0:31292d956e92 99 }
ansond 0:31292d956e92 100
ansond 0:31292d956e92 101 void register_endpoint(bool init) {
ansond 0:31292d956e92 102 sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
ansond 1:cb681dfa1678 103 endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t *)domain_name, (uint8_t*)endpoint_name, ep_type, lifetime_ptr);
ansond 1:cb681dfa1678 104 if (init) {
ansond 1:cb681dfa1678 105 if(sn_nsdl_register_endpoint(endpoint_ptr) != 0)
ansond 1:cb681dfa1678 106 DBG("NSP initial registration failed\r\n");
ansond 1:cb681dfa1678 107 else
ansond 1:cb681dfa1678 108 DBG("NSP initial registration OK\r\n");
ansond 1:cb681dfa1678 109 }
ansond 1:cb681dfa1678 110 else {
ansond 1:cb681dfa1678 111 if(sn_nsdl_register_endpoint(endpoint_ptr) != 0)
ansond 1:cb681dfa1678 112 DBG("NSP re-registration failed\r\n");
ansond 1:cb681dfa1678 113 else
ansond 1:cb681dfa1678 114 DBG("NSP re-registration OK\r\n");
ansond 1:cb681dfa1678 115 }
ansond 0:31292d956e92 116 nsdl_clean_register_endpoint(&endpoint_ptr);
ansond 0:31292d956e92 117 }
ansond 0:31292d956e92 118
ansond 0:31292d956e92 119 void registration_update_thread(void const *args) {
ansond 1:cb681dfa1678 120 int count = -1;
ansond 1:cb681dfa1678 121 int registration_time = 15; // about 30 seconds if iteration every 2 seconds
ansond 0:31292d956e92 122
ansond 0:31292d956e92 123 // first we want to wait a bit... let the endpoint crank up...
ansond 1:cb681dfa1678 124 Thread::wait(NSP_RD_UPDATE_PERIOD); // wait about 30 seconds, then go ahead and start the re-registration interval...
ansond 0:31292d956e92 125
ansond 0:31292d956e92 126 // now loop this thread forever sleeping and re-registering at the right iteration.
ansond 0:31292d956e92 127 while(true) {
ansond 0:31292d956e92 128 Thread::wait(MAIN_LOOP_SLEEP);
ansond 0:31292d956e92 129 ++count;
ansond 0:31292d956e92 130 if (count%registration_time == 0) {
ansond 0:31292d956e92 131 // re-registration time!
ansond 0:31292d956e92 132 count = 0;
ansond 0:31292d956e92 133 DBG("NSP: (re)registering...\r\n");
ansond 0:31292d956e92 134 register_endpoint(false);
ansond 0:31292d956e92 135 DBG("NSP: (re)registering complete.\r\n");
ansond 0:31292d956e92 136 }
ansond 0:31292d956e92 137 }
ansond 0:31292d956e92 138 }
ansond 0:31292d956e92 139
ansond 0:31292d956e92 140 void nsdl_init() {
ansond 0:31292d956e92 141 sn_nsdl_mem_s memory_cbs;
ansond 0:31292d956e92 142
ansond 1:cb681dfa1678 143 // initilize the UDP channel
ansond 1:cb681dfa1678 144 server.init();
ansond 1:cb681dfa1678 145 server.bind(nsp_port);
ansond 1:cb681dfa1678 146
ansond 0:31292d956e92 147 /* Initialize libNsdl */
ansond 0:31292d956e92 148 memset(&memory_cbs,0,sizeof(memory_cbs));
ansond 0:31292d956e92 149 memory_cbs.sn_nsdl_alloc = &nsdl_alloc;
ansond 0:31292d956e92 150 memory_cbs.sn_nsdl_free = &nsdl_free;
ansond 0:31292d956e92 151 if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1) {
ansond 1:cb681dfa1678 152 DBG("NSP: libNsdl init failed.\r\n");
ansond 0:31292d956e92 153 }
ansond 0:31292d956e92 154 else {
ansond 1:cb681dfa1678 155 DBG("NSP: libNsdl init successful.\r\n");
ansond 0:31292d956e92 156 }
ansond 3:3e1ad8ab5071 157 }
ansond 0:31292d956e92 158
ansond 3:3e1ad8ab5071 159 void nsdl_set_nsp_address(void) {
ansond 0:31292d956e92 160 /* Set nsp address for library */
ansond 1:cb681dfa1678 161 DBG("NSP: libNsdl NSP_ADDRESS: %d.%d.%d.%d port: %d\r\n",NSP_address_bytes[0],NSP_address_bytes[1],NSP_address_bytes[2],NSP_address_bytes[3],nsp_port);
ansond 1:cb681dfa1678 162 set_NSP_address(NSP_address_bytes, nsp_port, SN_NSDL_ADDRESS_TYPE_IPV4);
ansond 0:31292d956e92 163 }
ansond 0:31292d956e92 164
ansond 0:31292d956e92 165 // NSP event loop - spawn a re-registration thread AFTER we have initially registered and begun event processing...
ansond 0:31292d956e92 166 void nsdl_event_loop() {
ansond 0:31292d956e92 167 sn_nsdl_addr_s received_packet_address;
ansond 0:31292d956e92 168 Endpoint from;
ansond 0:31292d956e92 169 uint8_t nsp_received_address[4];
ansond 0:31292d956e92 170 char nsp_buffer[1024];
ansond 0:31292d956e92 171
ansond 0:31292d956e92 172 memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s));
ansond 0:31292d956e92 173 memset(nsp_received_address, 0, sizeof(nsp_received_address));
ansond 0:31292d956e92 174 received_packet_address.addr_ptr = nsp_received_address;
ansond 0:31292d956e92 175
ansond 0:31292d956e92 176 // start the registration update thread.. it will wait a bit while the endpoint gins up...
ansond 0:31292d956e92 177 Thread registration_thread(registration_update_thread);
ansond 0:31292d956e92 178
ansond 0:31292d956e92 179 // FOREVER: main loop for event processing
ansond 0:31292d956e92 180 while(true) {
ansond 1:cb681dfa1678 181 //DBG("NSP: waiting for data...\r\n");
ansond 0:31292d956e92 182 int n = server.receiveFrom(from,nsp_buffer,sizeof(nsp_buffer));
ansond 0:31292d956e92 183
ansond 1:cb681dfa1678 184 //DBG("NSP: received %d bytes... processing..\r\n.",n);
ansond 0:31292d956e92 185 if (n >= 0) sn_nsdl_process_coap((uint8_t*)nsp_buffer,n,&received_packet_address);
ansond 0:31292d956e92 186 }
ansond 0:31292d956e92 187 }