#include <stdio.h> #include <stdlib.h> #include <string.h> #include <stdint.h> #include "TLVEncoder.h" #include "TLVDecoder.h" #include "ActivateDefaultEpsBearerContextRequest.h" int decode_activate_default_eps_bearer_context_request(activate_default_eps_bearer_context_request_msg *activate_default_eps_bearer_context_request, uint8_t *buffer, uint32_t len) { uint32_t decoded = 0; int decoded_result = 0; // Check if we got a NULL pointer and if buffer length is >= minimum length expected for the message. CHECK_PDU_POINTER_AND_LENGTH_DECODER(buffer, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_MINIMUM_LENGTH, len); /* Decoding mandatory fields */ if ((decoded_result = decode_eps_quality_of_service(&activate_default_eps_bearer_context_request->epsqos, 0, buffer + decoded, len - decoded)) < 0) return decoded_result; else decoded += decoded_result; if ((decoded_result = decode_access_point_name(&activate_default_eps_bearer_context_request->accesspointname, 0, buffer + decoded, len - decoded)) < 0) return decoded_result; else decoded += decoded_result; if ((decoded_result = decode_pdn_address(&activate_default_eps_bearer_context_request->pdnaddress, 0, buffer + decoded, len - decoded)) < 0) return decoded_result; else decoded += decoded_result; /* Decoding optional fields */ while(len - decoded > 0) { uint8_t ieiDecoded = *(buffer + decoded); /* Type | value iei are below 0x80 so just return the first 4 bits */ if (ieiDecoded >= 0x80) ieiDecoded = ieiDecoded & 0xf0; switch(ieiDecoded) { case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_IEI: if ((decoded_result = decode_transaction_identifier(&activate_default_eps_bearer_context_request->transactionidentifier, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_IEI: if ((decoded_result = decode_quality_of_service(&activate_default_eps_bearer_context_request->negotiatedqos, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_IEI: if ((decoded_result = decode_llc_service_access_point_identifier(&activate_default_eps_bearer_context_request->negotiatedllcsapi, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_IEI: if ((decoded_result = decode_radio_priority(&activate_default_eps_bearer_context_request->radiopriority, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_IEI: if ((decoded_result = decode_packet_flow_identifier(&activate_default_eps_bearer_context_request->packetflowidentifier, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_IEI: if ((decoded_result = decode_apn_aggregate_maximum_bit_rate(&activate_default_eps_bearer_context_request->apnambr, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_IEI: if ((decoded_result = decode_esm_cause(&activate_default_eps_bearer_context_request->esmcause, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_PRESENT; break; case ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI: if ((decoded_result = decode_protocol_configuration_options(&activate_default_eps_bearer_context_request->protocolconfigurationoptions, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI, buffer + decoded, len - decoded)) <= 0) return decoded_result; decoded += decoded_result; /* Set corresponding mask to 1 in presencemask */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT; break; default: errorCodeDecoder = TLV_DECODE_UNEXPECTED_IEI; return TLV_DECODE_UNEXPECTED_IEI; } } return decoded; } int encode_activate_default_eps_bearer_context_request(activate_default_eps_bearer_context_request_msg *activate_default_eps_bearer_context_request, uint8_t *buffer, uint32_t len) { int encoded = 0; int encode_result = 0; /* Checking IEI and pointer */ CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_MINIMUM_LENGTH, len); if ((encode_result = encode_eps_quality_of_service(&activate_default_eps_bearer_context_request->epsqos, 0, buffer + encoded, len - encoded)) < 0) //Return in case of error return encode_result; else encoded += encode_result; if ((encode_result = encode_access_point_name(&activate_default_eps_bearer_context_request->accesspointname, 0, buffer + encoded, len - encoded)) < 0) //Return in case of error return encode_result; else encoded += encode_result; if ((encode_result = encode_pdn_address(&activate_default_eps_bearer_context_request->pdnaddress, 0, buffer + encoded, len - encoded)) < 0) //Return in case of error return encode_result; else encoded += encode_result; if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_PRESENT) { if ((encode_result = encode_transaction_identifier(&activate_default_eps_bearer_context_request->transactionidentifier, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_TRANSACTION_IDENTIFIER_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_PRESENT) { if ((encode_result = encode_quality_of_service(&activate_default_eps_bearer_context_request->negotiatedqos, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_QOS_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_PRESENT) { if ((encode_result = encode_llc_service_access_point_identifier(&activate_default_eps_bearer_context_request->negotiatedllcsapi, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_NEGOTIATED_LLC_SAPI_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_PRESENT) { if ((encode_result = encode_radio_priority(&activate_default_eps_bearer_context_request->radiopriority, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_RADIO_PRIORITY_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_PRESENT) { if ((encode_result = encode_packet_flow_identifier(&activate_default_eps_bearer_context_request->packetflowidentifier, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PACKET_FLOW_IDENTIFIER_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_PRESENT) { if ((encode_result = encode_apn_aggregate_maximum_bit_rate(&activate_default_eps_bearer_context_request->apnambr, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_APNAMBR_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_PRESENT) { if ((encode_result = encode_esm_cause(&activate_default_eps_bearer_context_request->esmcause, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_ESM_CAUSE_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } #if 1 /* LW: force Protocol Configuration Options to be included in the ESM message */ { #define CONFIGURATION_PROTOCOL_PPP 0 #define PROTOCOL_ID_IPCP 0x8021 #define PROTOCOL_ID_DNS_SERVER_IPV4_ADDRESS 0x000D /* Force this item to be present */ activate_default_eps_bearer_context_request->presencemask |= ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT; /* Fill this item with data from PFT trace */ activate_default_eps_bearer_context_request->protocolconfigurationoptions.configurationprotol = CONFIGURATION_PROTOCOL_PPP; activate_default_eps_bearer_context_request->protocolconfigurationoptions.protocolid = PROTOCOL_ID_IPCP; activate_default_eps_bearer_context_request->protocolconfigurationoptions.lengthofprotocolid = 16; /* Size of PROTOCOL_ID_IPCP */ activate_default_eps_bearer_context_request->protocolconfigurationoptions.protocolidcontents.value = (uint8_t *) /* PROTOCOL_ID_IPCP data */ "\x03\x00\x00\x10\x81\x06\x52\x61\x00\x78\x83\x06\x52\x61\x01\x78" /* Additional parameters PROTOCOL_ID_DNS_SERVER_IPV4_ADDRESS data */ "\x00\x0d\x04\x52\x61\x00\x78" /* Additional parameters PROTOCOL_ID_DNS_SERVER_IPV4_ADDRESS data */ "\x00\x0d\x04\x52\x61\x01\x78"; activate_default_eps_bearer_context_request->protocolconfigurationoptions.protocolidcontents.length = 16 + 7 + 7; } #endif if ((activate_default_eps_bearer_context_request->presencemask & ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT) == ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT) { if ((encode_result = encode_protocol_configuration_options(&activate_default_eps_bearer_context_request->protocolconfigurationoptions, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_IEI, buffer + encoded, len - encoded)) < 0) // Return in case of error return encode_result; else encoded += encode_result; } return encoded; }