/******************************************************************************* OpenAirInterface Copyright(c) 1999 - 2014 Eurecom OpenAirInterface is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. OpenAirInterface is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenAirInterface.The full GNU General Public License is included in this distribution in the file called "COPYING". If not, see <http://www.gnu.org/licenses/>. Contact Information OpenAirInterface Admin: openair_admin@eurecom.fr OpenAirInterface Tech : openair_tech@eurecom.fr OpenAirInterface Dev : openair4g-devel@eurecom.fr Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France. *******************************************************************************/ #include <string.h> #include "intertask_interface.h" #include "nas_itti_messaging.h" #include "msc.h" #if ((defined(NAS_BUILT_IN_EPC) && defined(NAS_MME)) || (defined(NAS_BUILT_IN_UE) && defined(NAS_UE))) # if (defined(NAS_BUILT_IN_EPC) && defined(NAS_MME)) # define TASK_ORIGIN TASK_NAS_MME # else # define TASK_ORIGIN TASK_NAS_UE # endif #endif #if ((defined(NAS_BUILT_IN_EPC) && defined(NAS_MME)) || (defined(ENABLE_NAS_UE_LOGGING) && defined(NAS_BUILT_IN_UE) && defined(NAS_UE))) static const UInt8_t emm_message_ids[] = { ATTACH_REQUEST, ATTACH_ACCEPT, ATTACH_COMPLETE, ATTACH_REJECT, DETACH_REQUEST, DETACH_ACCEPT, TRACKING_AREA_UPDATE_REQUEST, TRACKING_AREA_UPDATE_ACCEPT, TRACKING_AREA_UPDATE_COMPLETE, TRACKING_AREA_UPDATE_REJECT, EXTENDED_SERVICE_REQUEST, SERVICE_REQUEST, SERVICE_REJECT, GUTI_REALLOCATION_COMMAND, GUTI_REALLOCATION_COMPLETE, AUTHENTICATION_REQUEST, AUTHENTICATION_RESPONSE, AUTHENTICATION_REJECT, AUTHENTICATION_FAILURE, IDENTITY_REQUEST, IDENTITY_RESPONSE, SECURITY_MODE_COMMAND, SECURITY_MODE_COMPLETE, SECURITY_MODE_REJECT, EMM_STATUS, EMM_INFORMATION, DOWNLINK_NAS_TRANSPORT, UPLINK_NAS_TRANSPORT, CS_SERVICE_NOTIFICATION, }; static const UInt8_t esm_message_ids[] = { ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REQUEST, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_ACCEPT, ACTIVATE_DEFAULT_EPS_BEARER_CONTEXT_REJECT, ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_REQUEST, ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_ACCEPT, ACTIVATE_DEDICATED_EPS_BEARER_CONTEXT_REJECT, MODIFY_EPS_BEARER_CONTEXT_REQUEST, MODIFY_EPS_BEARER_CONTEXT_ACCEPT, MODIFY_EPS_BEARER_CONTEXT_REJECT, DEACTIVATE_EPS_BEARER_CONTEXT_REQUEST, DEACTIVATE_EPS_BEARER_CONTEXT_ACCEPT, PDN_CONNECTIVITY_REQUEST, PDN_CONNECTIVITY_REJECT, PDN_DISCONNECT_REQUEST, PDN_DISCONNECT_REJECT, BEARER_RESOURCE_ALLOCATION_REQUEST, BEARER_RESOURCE_ALLOCATION_REJECT, BEARER_RESOURCE_MODIFICATION_REQUEST, BEARER_RESOURCE_MODIFICATION_REJECT, ESM_INFORMATION_REQUEST, ESM_INFORMATION_RESPONSE, ESM_STATUS, }; static int _nas_find_message_index(const UInt8_t message_id, const UInt8_t *message_ids, const int ids_number) { int i; for(i = 0; i < ids_number; i ++) { if (message_id == message_ids[i]) { return (2 + i); } } return (1); } int nas_itti_plain_msg(const char *buffer, const nas_message_t *msg, const int length, const int down_link) { MessageDef *message_p; int data_length = length < NAS_DATA_LENGHT_MAX ? length : NAS_DATA_LENGHT_MAX; int message_type = -1; MessagesIds messageId_raw = -1; MessagesIds messageId_plain = -1; /* Define message ids */ if (msg->header.protocol_discriminator == EPS_MOBILITY_MANAGEMENT_MESSAGE) { message_type = 0; messageId_raw = down_link ? NAS_DL_EMM_RAW_MSG : NAS_UL_EMM_RAW_MSG; messageId_plain = down_link ? NAS_DL_EMM_PLAIN_MSG : NAS_UL_EMM_PLAIN_MSG; } else { if (msg->header.protocol_discriminator == EPS_SESSION_MANAGEMENT_MESSAGE) { message_type = 1; messageId_raw = down_link ? NAS_DL_ESM_RAW_MSG : NAS_UL_ESM_RAW_MSG; messageId_plain = down_link ? NAS_DL_ESM_PLAIN_MSG : NAS_UL_ESM_PLAIN_MSG; } } if (message_type >= 0) { /* Create and send the RAW message */ message_p = itti_alloc_new_message(TASK_ORIGIN, messageId_raw); NAS_DL_EMM_RAW_MSG(message_p).lenght = length; memset ((void *) &(NAS_DL_EMM_RAW_MSG(message_p).data), 0, NAS_DATA_LENGHT_MAX); memcpy ((void *) &(NAS_DL_EMM_RAW_MSG(message_p).data), buffer, data_length); itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p); /* Create and send the plain message */ if (message_type == 0) { message_p = itti_alloc_new_message(TASK_ORIGIN, messageId_plain); NAS_DL_EMM_PLAIN_MSG(message_p).present = _nas_find_message_index(msg->plain.emm.header.message_type, emm_message_ids, sizeof(emm_message_ids) / sizeof(emm_message_ids[0])); memcpy ((void *) &(NAS_DL_EMM_PLAIN_MSG(message_p).choice), &msg->plain.emm, sizeof (EMM_msg)); } else { message_p = itti_alloc_new_message(TASK_ORIGIN, messageId_plain); NAS_DL_ESM_PLAIN_MSG(message_p).present = _nas_find_message_index(msg->plain.esm.header.message_type, esm_message_ids, sizeof(esm_message_ids) / sizeof(esm_message_ids[0])); memcpy ((void *) &(NAS_DL_ESM_PLAIN_MSG(message_p).choice), &msg->plain.esm, sizeof (ESM_msg)); } return itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p); } return EXIT_FAILURE; } int nas_itti_protected_msg(const char *buffer, const nas_message_t *msg, const int length, const int down_link) { MessageDef *message_p = NULL; if (msg->header.protocol_discriminator == EPS_MOBILITY_MANAGEMENT_MESSAGE) { message_p = itti_alloc_new_message(TASK_ORIGIN, down_link ? NAS_DL_EMM_PROTECTED_MSG : NAS_UL_EMM_PROTECTED_MSG); memcpy ((void *) &(NAS_DL_EMM_PROTECTED_MSG(message_p).header), &msg->header, sizeof (nas_message_security_header_t)); NAS_DL_EMM_PROTECTED_MSG(message_p).present = _nas_find_message_index(msg->security_protected.plain.emm.header.message_type, emm_message_ids, sizeof(emm_message_ids) / sizeof(emm_message_ids[0])); memcpy ((void *) &(NAS_DL_EMM_PROTECTED_MSG(message_p).choice), &msg->security_protected.plain.emm, sizeof (EMM_msg)); } else { if (msg->header.protocol_discriminator == EPS_SESSION_MANAGEMENT_MESSAGE) { message_p = itti_alloc_new_message(TASK_ORIGIN, down_link ? NAS_DL_ESM_PROTECTED_MSG : NAS_UL_ESM_PROTECTED_MSG); memcpy ((void *) &(NAS_DL_ESM_PROTECTED_MSG(message_p).header), &msg->header, sizeof (nas_message_security_header_t)); NAS_DL_ESM_PROTECTED_MSG(message_p).present = _nas_find_message_index(msg->security_protected.plain.esm.header.message_type, esm_message_ids, sizeof(esm_message_ids) / sizeof(esm_message_ids[0])); memcpy ((void *) &(NAS_DL_ESM_PROTECTED_MSG(message_p).choice), &msg->security_protected.plain.esm, sizeof (ESM_msg)); } } if (message_p != NULL) { return itti_send_msg_to_task(TASK_UNKNOWN, INSTANCE_DEFAULT, message_p); } return EXIT_FAILURE; } #endif #if defined(NAS_BUILT_IN_EPC) && defined(NAS_MME) int nas_itti_dl_data_req(const uint32_t ue_id, void *const data, const uint32_t length) { MessageDef *message_p; message_p = itti_alloc_new_message(TASK_NAS_MME, NAS_DOWNLINK_DATA_REQ); NAS_DL_DATA_REQ(message_p).UEid = ue_id; NAS_DL_DATA_REQ(message_p).nasMsg.data = data; NAS_DL_DATA_REQ(message_p).nasMsg.length = length; MSC_LOG_TX_MESSAGE( MSC_NAS_MME, MSC_S1AP_MME, NULL,0, "0 NAS_DOWNLINK_DATA_REQ ue id %06"PRIX32" len %u", ue_id, length); return itti_send_msg_to_task(TASK_S1AP, INSTANCE_DEFAULT, message_p); } #endif #if defined(NAS_BUILT_IN_UE) && defined(NAS_UE) extern unsigned char NB_eNB_INST; int nas_itti_cell_info_req(const plmn_t plmnID, const Byte_t rat) { MessageDef *message_p; message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_CELL_SELECTION_REQ); NAS_CELL_SELECTION_REQ(message_p).plmnID = plmnID; NAS_CELL_SELECTION_REQ(message_p).rat = rat; MSC_LOG_TX_MESSAGE( MSC_NAS_UE, MSC_RRC_UE, NULL,0, "0 NAS_CELL_SELECTION_REQ PLMN %X%X%X.%X%X%X", plmnID.MCCdigit1, plmnID.MCCdigit2, plmnID.MCCdigit3, plmnID.MNCdigit1, plmnID.MNCdigit2, plmnID.MNCdigit3); return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p); } int nas_itti_nas_establish_req(as_cause_t cause, as_call_type_t type, as_stmsi_t s_tmsi, plmn_t plmnID, Byte_t *data, UInt32_t length) { MessageDef *message_p; message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_CONN_ESTABLI_REQ); NAS_CONN_ESTABLI_REQ(message_p).cause = cause; NAS_CONN_ESTABLI_REQ(message_p).type = type; NAS_CONN_ESTABLI_REQ(message_p).s_tmsi = s_tmsi; NAS_CONN_ESTABLI_REQ(message_p).plmnID = plmnID; NAS_CONN_ESTABLI_REQ(message_p).initialNasMsg.data = data; NAS_CONN_ESTABLI_REQ(message_p).initialNasMsg.length = length; MSC_LOG_TX_MESSAGE( MSC_NAS_UE, MSC_RRC_UE, NULL,0, "0 NAS_CONN_ESTABLI_REQ MME code %u m-TMSI %u PLMN %X%X%X.%X%X%X", s_tmsi.MMEcode, s_tmsi.m_tmsi, plmnID.MCCdigit1, plmnID.MCCdigit2, plmnID.MCCdigit3, plmnID.MNCdigit1, plmnID.MNCdigit2, plmnID.MNCdigit3); return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p); } int nas_itti_ul_data_req(const uint32_t ue_id, void *const data, const uint32_t length) { MessageDef *message_p; message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_UPLINK_DATA_REQ); NAS_UPLINK_DATA_REQ(message_p).UEid = ue_id; NAS_UPLINK_DATA_REQ(message_p).nasMsg.data = data; NAS_UPLINK_DATA_REQ(message_p).nasMsg.length = length; return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p); } int nas_itti_rab_establish_rsp(const as_stmsi_t s_tmsi, const as_rab_id_t rabID, const nas_error_code_t errCode) { MessageDef *message_p; message_p = itti_alloc_new_message(TASK_NAS_UE, NAS_RAB_ESTABLI_RSP); NAS_RAB_ESTABLI_RSP(message_p).s_tmsi = s_tmsi; NAS_RAB_ESTABLI_RSP(message_p).rabID = rabID; NAS_RAB_ESTABLI_RSP(message_p).errCode = errCode; MSC_LOG_TX_MESSAGE( MSC_NAS_UE, MSC_RRC_UE, NULL,0, "0 NAS_RAB_ESTABLI_RSP MME code %u m-TMSI %u rb id %u status %u", s_tmsi.MMEcode, s_tmsi.m_tmsi,rabID, errCode ); return itti_send_msg_to_task(TASK_RRC_UE, NB_eNB_INST + 0 /* TODO to be virtualized */, message_p); } #endif