Diff: NSDL/nsdl_support.cpp

Revision:

0:2a5a48a8b4d4

Child:

4:2c8eeaf31699

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NSDL/nsdl_support.cpp	Sun Feb 01 18:26:13 2015 +0000
@@ -0,0 +1,218 @@
+// NSDL library support functions
+
+#include "configuration.h"
+#include "mbedConnectorInterface.h"
+#include "debug.h"
+#include "nsdl_support.h"
+#include "socket_api.h"
+
+// we have to redefine DBG as its used differently here...
+#ifdef DBG
+    #undef DBG
+#endif
+#define DBG  printf
+
+static ns_address_t app_dest;
+char null_ep_name[] = "";
+char null_ep_domain[] = "";
+uint8_t null_ep_type[] = "";
+uint8_t null_lifetime_ptr[] = "";
+bool nsdl_reg_update_needed = false;
+
+extern int8_t coap_udp_socket;
+        
+void *nsdl_alloc(uint16_t size)
+{
+    void *buf = malloc(size);
+    return buf;
+}
+
+void nsdl_free(void* ptr_to_free)
+{
+    free(ptr_to_free);
+}
+
+/*
+ * Create a static resoure
+ * Only get is allowed
+ */
+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)
+{
+    resource_structure->access = SN_GRS_GET_ALLOWED;
+    resource_structure->mode = SN_GRS_STATIC;
+    resource_structure->pathlen = pt_len;
+    resource_structure->path = pt;
+    resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
+    resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
+    resource_structure->resource = rsc;
+    resource_structure->resourcelen = rsc_len;
+    sn_nsdl_create_resource(resource_structure);
+}
+
+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)
+{
+    resource_structure->access = (sn_grs_resource_acl_e)access_right;
+    resource_structure->resource = 0;
+    resource_structure->resourcelen = 0;
+    resource_structure->sn_grs_dyn_res_callback = callback_ptr;
+    resource_structure->mode = SN_GRS_DYNAMIC;
+    resource_structure->pathlen = pt_len;
+    resource_structure->path = pt;
+    resource_structure->resource_parameters_ptr->resource_type_len = rpp_len;
+    resource_structure->resource_parameters_ptr->resource_type_ptr = rpp_ptr;
+    resource_structure->resource_parameters_ptr->observable = is_observable;
+    sn_nsdl_create_resource(resource_structure);
+}
+
+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)
+{
+    if (endpoint_structure == NULL)
+    {   
+        endpoint_structure = (sn_nsdl_ep_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_ep_parameters_s));
+    }
+    if (endpoint_structure != NULL)
+    {
+        memset(endpoint_structure, 0, sizeof(sn_nsdl_ep_parameters_s));
+        endpoint_structure->endpoint_name_ptr = name;
+        endpoint_structure->endpoint_name_len = strlen((char*)name);
+        endpoint_structure->domain_name_ptr = domain;
+        endpoint_structure->domain_name_len = strlen((char*)domain);
+        endpoint_structure->type_ptr = typename_ptr;
+        endpoint_structure->type_len =  strlen((char*)typename_ptr);
+        endpoint_structure->lifetime_ptr = lifetime_ptr;
+        endpoint_structure->lifetime_len =  strlen((char*)lifetime_ptr);         
+    }
+    return endpoint_structure;
+}
+
+void nsdl_clean_register_endpoint(sn_nsdl_ep_parameters_s **endpoint_structure)
+{
+    if (*endpoint_structure)
+    {
+        nsdl_free(*endpoint_structure);
+        *endpoint_structure = NULL;
+    }
+}
+
+static uint8_t tx_cb(sn_nsdl_capab_e protocol, uint8_t *data_ptr, uint16_t datalen, sn_nsdl_addr_s *address_prt)
+{
+    DBG("TX callback!\n\rSending %d bytes...", datalen);
+    //DBG("Payload:'");
+    //for (int i=0; i < datalen; i++)
+    //    DBG("%c", *(data_ptr + i));
+    //DBG("' \r\n");
+
+    int8_t socket_ret_value = 0;
+    memcpy(app_dest.address, address_prt->addr_ptr, 16);
+    app_dest.identifier = address_prt->port;
+    app_dest.type = ADDRESS_IPV6;       
+
+        socket_ret_value = socket_sendto(coap_udp_socket, &app_dest, data_ptr, datalen);
+        if(socket_ret_value != 0)
+            {   
+                   DBG("Failed\r\n");                            
+                    return 0;//failed
+            }
+            else
+            {   
+                                 DBG("Ok\r\n");
+                    return 1; // success
+            }
+}
+
+static uint8_t rx_cb(sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *address_ptr)
+{
+    DBG("RX callback!\r\n");
+    DBG("msg_code: %d \r\n", coap_packet_ptr->msg_code);
+    DBG("Payload length: %d bytes\r\n", coap_packet_ptr->payload_len);
+    int i;
+    DBG("Payload:'");
+    for (i=0; i < coap_packet_ptr->payload_len; i++)
+        DBG("%c", *(coap_packet_ptr->payload_ptr + i));
+    DBG("' \r\n");
+    if (coap_packet_ptr->options_list_ptr && coap_packet_ptr->options_list_ptr->location_path_ptr)
+    {
+        DBG("Location: /");
+        int i;
+        for (i=0; i < coap_packet_ptr->options_list_ptr->location_path_len; i++) DBG("%c", (char)(coap_packet_ptr->options_list_ptr->location_path_ptr[i]));
+        DBG(" \r\n");
+    }
+    //sn_coap_packet_debug(coap_packet_ptr);
+    return 0;
+}
+
+
+void NSP_registration( ) { 
+        sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
+ 
+        endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t *)domain_name, (uint8_t*)endpoint_name, ep_type, lifetime_ptr);
+        if(sn_nsdl_register_endpoint(endpoint_ptr) != 0)
+            DBG("NSP re-registering failed\r\n");
+        else
+            DBG("NSP re-registering OK\r\n");
+        nsdl_clean_register_endpoint(&endpoint_ptr);
+}
+
+
+void nsdl_init()
+{
+    //uint8_t nsp_addr[4];
+    sn_nsdl_mem_s memory_cbs;
+
+    /* Initialize libNsdl */
+    memory_cbs.sn_nsdl_alloc = &nsdl_alloc;
+    memory_cbs.sn_nsdl_free = &nsdl_free;
+    if(sn_nsdl_init(&tx_cb, &rx_cb, &memory_cbs) == -1)
+        DBG("libNsdl init failed\r\n");
+    else
+        DBG("libNsdl init done\r\n");
+        /* Set nsp address for library */     
+        set_NSP_address(NSP_address_bytes, NSP_COAP_UDP_PORT, SN_NSDL_ADDRESS_TYPE_IPV6);
+}
+
+void nsdl_reg_update()
+    {
+    sn_nsdl_ep_parameters_s *endpoint_ptr = NULL;
+    // reg update should be invoked with null parameters if nothing is changing
+    endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t *)null_ep_domain, (uint8_t*)null_ep_name, null_ep_type, null_lifetime_ptr);
+    if(sn_nsdl_update_registration(endpoint_ptr) != 0)
+        DBG("NSP re-registering failed\r\n");
+    else
+        DBG("NSP re-registering OK\r\n");
+    nsdl_clean_register_endpoint(&endpoint_ptr);
+    }
+    
+void nsdl_reg_update_timeout()
+    {
+    nsdl_reg_update_needed = true;
+    }
+
+void nsdl_event_loop()
+{
+
+    sn_nsdl_addr_s received_packet_address;
+    uint8_t received_address[4];
+
+    memset(&received_packet_address, 0, sizeof(sn_nsdl_addr_s));
+    received_packet_address.addr_ptr = received_address;
+
+    while(1)
+    {
+        //        pc.DBG("checking reg timeout\r\n");
+        if (nsdl_reg_update_needed)
+        {
+            nsdl_reg_update_needed = false;
+            nsdl_reg_update();
+        }
+    }
+}
+
+void nsdl_run() {    
+    // Initialize NSDL stack
+    DBG("nsdl_run: NDSL Initialization...\r\n");
+    nsdl_init();
+     
+    // Customize the endpoint and its resources
+    DBG("nsdl_run: Creating MDS Resources for endpoint...\r\n");
+    configure_endpoint();
+}