\r
//#include <iostream>\r
//#include <vector>\r
+#include <stdexcept>\r
+#include <unistd.h>\r
\r
#include "encode_e2apv1.hpp"\r
\r
-\r
-#include <unistd.h>\r
-\r
-void e2ap_handle_sctp_data(int &socket_fd, sctp_buffer_t &data, bool xmlenc, E2Sim *e2sim)\r
-{\r
- fprintf(stderr, "in e2ap_handle_sctp_data()\n");\r
- //decode the data into E2AP-PDU\r
+void e2ap_handle_sctp_data(int& socket_fd, sctp_buffer_t& data, bool xmlenc, E2Sim* e2sim) {\r
E2AP_PDU_t* pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
ASN_STRUCT_RESET(asn_DEF_E2AP_PDU, pdu);\r
\r
- fprintf(stderr, "decoding...\n");\r
-\r
asn_transfer_syntax syntax;\r
- \r
\r
syntax = ATS_ALIGNED_BASIC_PER;\r
- \r
-\r
- fprintf(stderr, "full buffer\n%s\n", data.buffer);\r
- // e2ap_asn1c_decode_pdu(pdu, data.buffer, data.len);\r
-\r
- auto rval = asn_decode(nullptr, syntax, &asn_DEF_E2AP_PDU, (void **) &pdu,\r
- data.buffer, data.len);\r
- \r
+ auto rval = asn_decode(nullptr, syntax, &asn_DEF_E2AP_PDU, (void**)&pdu, data.buffer, data.len);\r
+\r
+ switch (rval.code) {\r
+ case RC_WMORE:\r
+ case RC_FAIL:\r
+ LOG_E("Failed to decode E2AP data from SCTP connection");\r
+ ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, pdu);\r
+ exit(1);\r
+ default:\r
+ break;\r
+ }\r
\r
- int index = (int)pdu->present;\r
- fprintf(stderr, "length of data %d\n", rval.consumed);\r
- fprintf(stderr, "result %d\n", rval.code);\r
- fprintf(stderr, "index is %d\n", index);\r
- \r
- fprintf(stderr, "showing xer of data\n"); \r
- \r
- xer_fprint(stderr, &asn_DEF_E2AP_PDU, pdu);\r
- \r
int procedureCode = e2ap_asn1c_get_procedureCode(pdu);\r
- index = (int)pdu->present;\r
+ int index = (int)pdu->present;\r
\r
- LOG_D("[E2AP] Unpacked E2AP-PDU: index = %d, procedureCode = %d\n",\r
- index, procedureCode);\r
+ LOG_D("Unpacked E2AP-PDU: index = %d, procedureCode = %d\n", index, procedureCode);\r
\r
- switch(procedureCode)\r
- {\r
- \r
+ switch (procedureCode) {\r
case ProcedureCode_id_E2setup:\r
- switch(index)\r
- {\r
+ LOG_I("Received a message of E2 setup procedure");\r
+ switch (index) {\r
case E2AP_PDU_PR_initiatingMessage:\r
- e2ap_handle_E2SetupRequest(pdu, socket_fd);\r
- LOG_I("[E2AP] Received SETUP-REQUEST");\r
+ e2ap_handle_E2SetupRequest(pdu, socket_fd);\r
+ LOG_I("Received SETUP-REQUEST");\r
break;\r
- \r
+\r
case E2AP_PDU_PR_successfulOutcome:\r
- LOG_I("[E2AP] Received SETUP-RESPONSE-SUCCESS");\r
+ LOG_I("Received SETUP-RESPONSE-SUCCESS");\r
break;\r
- \r
+\r
case E2AP_PDU_PR_unsuccessfulOutcome:\r
- LOG_I("[E2AP] Received SETUP-RESPONSE-FAILURE");\r
+ LOG_I("Received SETUP-RESPONSE-FAILURE");\r
break;\r
- \r
+\r
default:\r
- LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ LOG_E("Invalid message index=%d in E2AP-PDU", index);\r
break;\r
- }\r
- break; \r
- \r
- case ProcedureCode_id_Reset: //reset = 7\r
- switch(index)\r
- {\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_Reset: // reset = 7\r
+ LOG_I("Received a message of Reset procedure");\r
+ switch (index) {\r
case E2AP_PDU_PR_initiatingMessage:\r
- LOG_I("[E2AP] Received RESET-REQUEST");\r
+ LOG_I("Received RESET-REQUEST");\r
break;\r
- \r
+\r
case E2AP_PDU_PR_successfulOutcome:\r
break;\r
- \r
+\r
case E2AP_PDU_PR_unsuccessfulOutcome:\r
break;\r
- \r
+\r
default:\r
- LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ LOG_E("Invalid message index=%d in E2AP-PDU", index);\r
break;\r
- }\r
+ }\r
break;\r
- \r
- case ProcedureCode_id_RICsubscription: //RIC SUBSCRIPTION = 201\r
- switch(index)\r
- {\r
- case E2AP_PDU_PR_initiatingMessage: { //initiatingMessage \r
- LOG_I("[E2AP] Received RIC-SUBSCRIPTION-REQUEST");\r
- // e2ap_handle_RICSubscriptionRequest(pdu, socket_fd);\r
- long func_id = encoding::get_function_id_from_subscription(pdu);\r
- fprintf(stderr, "Function Id of message is %d\n", func_id);\r
- SubscriptionCallback cb;\r
-\r
- bool func_exists = true;\r
-\r
- try {\r
- cb = e2sim->get_subscription_callback(func_id);\r
- } catch(const std::out_of_range& e) {\r
- func_exists = false;\r
- }\r
-\r
- if (func_exists) {\r
- fprintf(stderr, "Calling callback function\n");\r
- cb(pdu);\r
- } else {\r
- fprintf(stderr, "Error: No RAN Function with this ID exists\n");\r
- }\r
- // callback_kpm_subscription_request(pdu, socket_fd);\r
-\r
- }\r
- break;\r
- \r
+\r
+ case ProcedureCode_id_RICsubscription: // RIC SUBSCRIPTION = 201\r
+ LOG_I("Received a message of RIC subscription procedure");\r
+ switch (index) {\r
+ case E2AP_PDU_PR_initiatingMessage: { // initiatingMessage\r
+ LOG_I("Received RIC-SUBSCRIPTION-REQUEST");\r
+ // e2ap_handle_RICSubscriptionRequest(pdu, socket_fd);\r
+ long func_id = encoding::get_function_id_from_subscription(pdu);\r
+ fprintf(stderr, "Function Id of message is %d\n", func_id);\r
+ SubscriptionCallback cb;\r
+\r
+ bool func_exists = true;\r
+\r
+ try {\r
+ cb = e2sim->get_subscription_callback(func_id);\r
+ } catch (const std::out_of_range& e) {\r
+ func_exists = false;\r
+ }\r
+\r
+ if (func_exists) {\r
+ fprintf(stderr, "Calling callback function\n");\r
+ cb(pdu);\r
+ } else {\r
+ fprintf(stderr, "Error: No RAN Function with this ID exists\n");\r
+ }\r
+ // callback_kpm_subscription_request(pdu, socket_fd);\r
+\r
+ } break;\r
+\r
case E2AP_PDU_PR_successfulOutcome:\r
- LOG_I("[E2AP] Received RIC-SUBSCRIPTION-RESPONSE");\r
+ LOG_I("Received RIC-SUBSCRIPTION-RESPONSE");\r
break;\r
- \r
+\r
case E2AP_PDU_PR_unsuccessfulOutcome:\r
- LOG_I("[E2AP] Received RIC-SUBSCRIPTION-FAILURE");\r
+ LOG_I("Received RIC-SUBSCRIPTION-FAILURE");\r
break;\r
- \r
+\r
default:\r
- LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU", index);\r
+ LOG_E("Invalid message index=%d in E2AP-PDU", index);\r
break;\r
- }\r
+ }\r
break;\r
\r
- case ProcedureCode_id_RICindication: // 205\r
- switch(index)\r
- {\r
- case E2AP_PDU_PR_initiatingMessage: //initiatingMessage\r
- LOG_I("[E2AP] Received RIC-INDICATION-REQUEST");\r
+ case ProcedureCode_id_RICindication: // 205\r
+ LOG_I("Received a message of RIC indication procedure");\r
+ switch (index) {\r
+ case E2AP_PDU_PR_initiatingMessage: // initiatingMessage\r
+ LOG_I("Received RIC-INDICATION-REQUEST");\r
// e2ap_handle_RICSubscriptionRequest(pdu, socket_fd);\r
break;\r
case E2AP_PDU_PR_successfulOutcome:\r
- LOG_I("[E2AP] Received RIC-INDICATION-RESPONSE");\r
+ LOG_I("Received RIC-INDICATION-RESPONSE");\r
break;\r
- \r
+\r
case E2AP_PDU_PR_unsuccessfulOutcome:\r
- LOG_I("[E2AP] Received RIC-INDICATION-FAILURE");\r
+ LOG_I("Received RIC-INDICATION-FAILURE");\r
break;\r
- \r
+\r
default:\r
- LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
- (int)ProcedureCode_id_RICindication);\r
+ LOG_E("Invalid message index=%d in E2AP-PDU %d", index, (int)ProcedureCode_id_RICindication);\r
break;\r
- }\r
+ }\r
break;\r
\r
case ProcedureCode_id_RICserviceQuery:\r
- switch (index)\r
- {\r
- case E2AP_PDU_PR_initiatingMessage:\r
- LOG_I("[E2AP] Received RIC-Service-Query")\r
+ LOG_I("Received a message of RIC service query procedure");\r
+ switch (index) {\r
+ case E2AP_PDU_PR_initiatingMessage:\r
+ LOG_I("Received RIC-Service-Query")\r
e2ap_handle_E2SeviceRequest(pdu, socket_fd, e2sim);\r
break;\r
\r
- default:\r
- LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
- (int)ProcedureCode_id_RICserviceQuery);\r
+ default:\r
+ LOG_E("Invalid message index=%d in E2AP-PDU %d", index, (int)ProcedureCode_id_RICserviceQuery);\r
break;\r
- }\r
+ }\r
+ break;\r
+\r
+ case ProcedureCode_id_E2nodeConfigurationUpdate:\r
+ LOG_I("Received a message of E2 node configuration update procedure");\r
+ switch (index) {\r
+ case E2AP_PDU_PR_successfulOutcome:\r
+ LOG_I("Received E2nodeConfigurationUpdate")\r
+ break;\r
+\r
+ default:\r
+ LOG_E("Invalid message index=%d in E2AP-PDU %d", index, (int)ProcedureCode_id_E2nodeConfigurationUpdate);\r
+ break;\r
+ }\r
break;\r
\r
case ProcedureCode_id_RICserviceUpdate:\r
- switch (index)\r
- {\r
- case E2AP_PDU_PR_successfulOutcome:\r
- LOG_I("[E2AP] Received RIC-SERVICE-UPDATE-SUCCESS")\r
+ LOG_I("Received a message of RIC service update procedure");\r
+ switch (index) {\r
+ case E2AP_PDU_PR_successfulOutcome:\r
+ LOG_I("Received RIC-SERVICE-UPDATE-SUCCESS")\r
break;\r
\r
- case E2AP_PDU_PR_unsuccessfulOutcome:\r
- LOG_I("[E2AP] Received RIC-SERVICE-UPDATE-FAILURE")\r
+ case E2AP_PDU_PR_unsuccessfulOutcome:\r
+ LOG_I("Received RIC-SERVICE-UPDATE-FAILURE")\r
break;\r
\r
- default:\r
- LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
- (int)ProcedureCode_id_RICserviceUpdate);\r
+ default:\r
+ LOG_E("Invalid message index=%d in E2AP-PDU %d", index, (int)ProcedureCode_id_RICserviceUpdate);\r
break;\r
- }\r
+ }\r
break;\r
- \r
- default:\r
- \r
- LOG_E("[E2AP] No available handler for procedureCode=%d", procedureCode);\r
\r
+ default:\r
+ LOG_E("No available handler for procedureCode=%d", procedureCode);\r
break;\r
- }\r
+ }\r
+ ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, pdu);\r
}\r
\r
-void e2ap_handle_E2SeviceRequest(E2AP_PDU_t* pdu, int &socket_fd, E2Sim *e2sim) {\r
-\r
+void e2ap_handle_E2SeviceRequest(E2AP_PDU_t* pdu, int& socket_fd, E2Sim* e2sim) {\r
auto buffer_size = MAX_SCTP_BUFFER;\r
unsigned char buffer[MAX_SCTP_BUFFER];\r
- E2AP_PDU_t* res_pdu = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
+ E2AP_PDU_t* res_pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
\r
// prepare ran function defination\r
std::vector<encoding::ran_func_info> all_funcs;\r
\r
- //Loop through RAN function definitions that are registered\r
+ // Loop through RAN function definitions that are registered\r
\r
for (std::pair<long, OCTET_STRING_t*> elem : e2sim->getRegistered_ran_functions()) {\r
printf("looping through ran func\n");\r
next_func.ranFunctionRev = (long)3;\r
all_funcs.push_back(next_func);\r
}\r
- \r
+\r
printf("about to call service update encode\n");\r
\r
encoding::generate_e2apv1_service_update(res_pdu, all_funcs);\r
\r
- LOG_D("[E2AP] Created E2-SERVICE-UPDATE");\r
+ LOG_D("Created E2-SERVICE-UPDATE");\r
\r
e2ap_asn1c_print_pdu(res_pdu);\r
\r
sctp_buffer_t data;\r
\r
- char *error_buf = (char*)calloc(300, sizeof(char));\r
- size_t errlen;\r
+ char error_buf[300] = {\r
+ 0,\r
+ };\r
+ size_t errlen = 0;\r
\r
asn_check_constraints(&asn_DEF_E2AP_PDU, res_pdu, error_buf, &errlen);\r
printf("error length %d\n", errlen);\r
printf("error buf %s\n", error_buf);\r
\r
auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, res_pdu, buffer, buffer_size);\r
+ \r
+ if (er.encoded == -1) {\r
+ LOG_E("Failed to serialize message. Detail: %s.\n", asn_DEF_E2AP_PDU.name);\r
+ exit(1);\r
+ } else if (er.encoded > buffer_size) {\r
+ LOG_E("Buffer of size %zu is too small for %s, need %zu\n", buffer_size, asn_DEF_E2AP_PDU.name, er.encoded);\r
+ exit(1);\r
+ }\r
\r
data.len = er.encoded;\r
- fprintf(stderr, "er encoded is %d\n", er.encoded);\r
\r
memcpy(data.buffer, buffer, er.encoded);\r
\r
- //send response data over sctp\r
- if(sctp_send_data(socket_fd, data) > 0) {\r
- LOG_I("[SCTP] Sent E2-SERVICE-UPDATE");\r
+ // send response data over sctp\r
+ if (sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("Sent E2-SERVICE-UPDATE");\r
} else {\r
- LOG_E("[SCTP] Unable to send E2-SERVICE-UPDATE to peer");\r
+ LOG_E("Unable to send E2-SERVICE-UPDATE to peer");\r
}\r
}\r
\r
-void e2ap_handle_E2SetupRequest(E2AP_PDU_t* pdu, int &socket_fd) {\r
+void e2ap_send_e2nodeConfigUpdate(int& socket_fd) {\r
+ auto buffer_size = MAX_SCTP_BUFFER;\r
+ unsigned char buffer[MAX_SCTP_BUFFER];\r
+ E2AP_PDU_t* pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
\r
- \r
+ LOG_I("Generating E2 node configure update");\r
+\r
+ encoding::generate_e2apv2_config_update(pdu);\r
+\r
+ e2ap_asn1c_print_pdu(pdu);\r
+\r
+ sctp_buffer_t data;\r
+\r
+ char error_buf[300] = {\r
+ 0,\r
+ };\r
+ size_t errlen = 0;\r
+\r
+ asn_check_constraints(&asn_DEF_E2AP_PDU, pdu, error_buf, &errlen);\r
+\r
+ auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu, buffer, buffer_size);\r
+\r
+ if (er.encoded == -1) {\r
+ LOG_E("Failed to serialize message. Detail: %s.\n", asn_DEF_E2AP_PDU.name);\r
+ exit(1);\r
+ } else if (er.encoded > buffer_size) {\r
+ LOG_E("Buffer of size %zu is too small for %s, need %zu\n", buffer_size, asn_DEF_E2AP_PDU.name, er.encoded);\r
+ exit(1);\r
+ }\r
+\r
+ data.len = er.encoded;\r
+\r
+ memcpy(data.buffer, buffer, er.encoded);\r
+\r
+ // send response data over sctp\r
+ if (sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("Sent E2nodeConfigUpdate");\r
+ } else {\r
+ LOG_E("[SCTP] Unable to send E2nodeConfigUpdate to peer");\r
+ }\r
+}\r
+\r
+void e2ap_handle_E2SetupRequest(E2AP_PDU_t* pdu, int& socket_fd) {\r
E2AP_PDU_t* res_pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
encoding::generate_e2apv1_setup_response(res_pdu);\r
\r
- \r
- LOG_D("[E2AP] Created E2-SETUP-RESPONSE");\r
+ LOG_D("Created E2-SETUP-RESPONSE");\r
\r
e2ap_asn1c_print_pdu(res_pdu);\r
\r
-\r
auto buffer_size = MAX_SCTP_BUFFER;\r
unsigned char buffer[MAX_SCTP_BUFFER];\r
- \r
+\r
sctp_buffer_t data;\r
auto er = asn_encode_to_buffer(nullptr, ATS_BASIC_XER, &asn_DEF_E2AP_PDU, res_pdu, buffer, buffer_size);\r
\r
+ if (er.encoded == -1) {\r
+ LOG_E("Failed to serialize message. Detail: %s.\n", asn_DEF_E2AP_PDU.name);\r
+ exit(1);\r
+ } else if (er.encoded > buffer_size) {\r
+ LOG_E("Buffer of size %zu is too small for %s, need %zu\n", buffer_size, asn_DEF_E2AP_PDU.name, er.encoded);\r
+ exit(1);\r
+ }\r
+\r
data.len = er.encoded;\r
- fprintf(stderr, "er encoded is %d\n", er.encoded); \r
\r
- //data.len = e2ap_asn1c_encode_pdu(res_pdu, &buf);\r
memcpy(data.buffer, buffer, er.encoded);\r
\r
- //send response data over sctp\r
- if(sctp_send_data(socket_fd, data) > 0) {\r
- LOG_I("[SCTP] Sent E2-SETUP-RESPONSE");\r
+ // send response data over sctp\r
+ if (sctp_send_data(socket_fd, data) > 0) {\r
+ LOG_I("Sent E2-SETUP-RESPONSE");\r
} else {\r
LOG_E("[SCTP] Unable to send E2-SETUP-RESPONSE to peer");\r
}\r
\r
sleep(5);\r
\r
- //Sending Subscription Request\r
+ // Sending Subscription Request\r
\r
- E2AP_PDU_t* pdu_sub = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
+ E2AP_PDU_t* pdu_sub = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU));\r
\r
encoding::generate_e2apv1_subscription_request(pdu_sub);\r
\r
\r
auto buffer_size2 = MAX_SCTP_BUFFER;\r
unsigned char buffer2[MAX_SCTP_BUFFER];\r
- \r
+\r
sctp_buffer_t data2;\r
\r
auto er2 = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu_sub, buffer2, buffer_size2);\r
- \r
+\r
+ if (er2.encoded == -1) {\r
+ LOG_E("Failed to serialize message. Detail: %s.\n", asn_DEF_E2AP_PDU.name);\r
+ exit(1);\r
+ } else if (er2.encoded > buffer_size2) {\r
+ LOG_E("Buffer of size %zu is too small for %s, need %zu\n", buffer_size2, asn_DEF_E2AP_PDU.name, er2.encoded);\r
+ exit(1);\r
+ }\r
+\r
data2.len = er2.encoded;\r
memcpy(data2.buffer, buffer2, er2.encoded);\r
- \r
- fprintf(stderr, "er encded is %d\n", er2.encoded);\r
\r
- if(sctp_send_data(socket_fd, data2) > 0) {\r
- LOG_I("[SCTP] Sent E2-SUBSCRIPTION-REQUEST");\r
+ if (sctp_send_data(socket_fd, data2) > 0) {\r
+ LOG_I("Sent E2-SUBSCRIPTION-REQUEST");\r
} else {\r
LOG_E("[SCTP] Unable to send E2-SUBSCRIPTION-REQUEST to peer");\r
- } \r
-\r
-\r
+ }\r
}\r
\r
/*\r
\r
auto buffer_size2 = MAX_SCTP_BUFFER;\r
unsigned char buffer2[MAX_SCTP_BUFFER];\r
- \r
+\r
sctp_buffer_t data2;\r
\r
auto er2 = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu_resp, buffer2, buffer_size2);\r
memcpy(data2.buffer, buffer2, er2.encoded);\r
\r
if(sctp_send_data(socket_fd, data2) > 0) {\r
- LOG_I("[SCTP] Sent RIC-SUBSCRIPTION-RESPONSE");\r
+ LOG_I("Sent RIC-SUBSCRIPTION-RESPONSE");\r
} else {\r
LOG_E("[SCTP] Unable to send RIC-SUBSCRIPTION-RESPONSE to peer");\r
}\r
- \r
- \r
+\r
+\r
//Send back an Indication\r
\r
E2AP_PDU_t* pdu_ind = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
\r
auto buffer_size = MAX_SCTP_BUFFER;\r
unsigned char buffer[MAX_SCTP_BUFFER];\r
- \r
+\r
sctp_buffer_t data;\r
\r
auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu_ind, buffer, buffer_size);\r
memcpy(data.buffer, buffer, er.encoded);\r
\r
if(sctp_send_data(socket_fd, data) > 0) {\r
- LOG_I("[SCTP] Sent RIC-INDICATION-REQUEST");\r
+ LOG_I("Sent RIC-INDICATION-REQUEST");\r
} else {\r
LOG_E("[SCTP] Unable to send RIC-INDICATION-REQUEST to peer");\r
- } \r
+ }\r
\r
}\r
*/\r
-\r
-\r
-\r