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srsLTE
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Hard-coded k, amf and op (for now).

This commit is contained in:
Pedro Alvarez 2017-10-31 18:05:26 +00:00
parent 3fd552c0e2
commit 6c60c493e7
2 changed files with 53 additions and 17 deletions
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17
srsepc/src/hss/hss.cc
View File

@ -81,19 +81,28 @@ bool
hss::get_k_amf_op(uint64_t imsi, uint8_t *k, uint8_t *amf, uint8_t *op )
{
uint8_t k_tmp[16];
for(int i=0;i<8;i++)
{
k_tmp[2*i]=i;
k_tmp[2*i+1]=i;
}
uint8_t amf_tmp[2]={0x80,0x00};
uint8_t op_tmp[16]={0x63,0xbf,0xA5,0x0E,0xE6,0x52,0x33,0x65,0xFF,0x14,0xC1,0xF4,0x5F,0x88,0x73,0x7D};
if(imsi != 1010123456789)
{
return false;
}
else
{
m_hss_log.console("Found User %015lu\n",imsi);
memcpy(k,k_tmp,16);
memcpy(amf,amf_tmp,2);
memcpy(op,op_tmp,16);
}
//uint8_t k[16];
//uint8_t amf[2]; // 3GPP 33.102 v10.0.0 Annex H
//uint8_t op[16];
return false;
return true;
}
} //namespace srsepc

53
srsepc/src/mme/s1ap.cc
View File

@ -263,13 +263,13 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *msg
LIBLTE_ERROR_ENUM err = liblte_mme_unpack_attach_request_msg((LIBLTE_BYTE_MSG_STRUCT *) nas_msg, &attach_req);
if(err != LIBLTE_SUCCESS){
m_s1ap_log->console("Error unpacking NAS attach request. Error: %s\n", liblte_error_text[err]);
m_s1ap_log->error("Error unpacking NAS attach request. Error: %s\n", liblte_error_text[err]);
return false;
}
m_s1ap_log->info("Received Attach Request\n");
if(attach_req.eps_mobile_id.type_of_id!=LIBLTE_MME_EPS_MOBILE_ID_TYPE_IMSI){
m_s1ap_log->warning("NAS Attach Request: Unhandle UE Id Type");
m_s1ap_log->error("NAS Attach Request: Unhandle UE Id Type");
return false;
}
@ -277,7 +277,6 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *msg
for(int i=0;i<=14;i++)
{
imsi += attach_req.eps_mobile_id.imsi[i]*std::pow(10,14-i);
//std::cout << (uint16_t) attach_req.eps_mobile_id.imsi[i] << " ";
}
m_s1ap_log->console("IMSI: %015lu\n", imsi);
@ -298,21 +297,31 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *msg
/*Handle PDN Connctivity Request*/
liblte_mme_unpack_pdn_connectivity_request_msg(&attach_req.esm_msg, &pdn_con_req);
//pdn_con_req.eps_bearer_id
//pdn_con_req.proc_transaction_id = 0x01; // First transaction ID
//pdn_con_req.pdn_type = LIBLTE_MME_PDN_TYPE_IPV4;
//pdn_con_req.request_type = LIBLTE_MME_REQUEST_TYPE_INITIAL_REQUEST;
err = liblte_mme_unpack_pdn_connectivity_request_msg(&attach_req.esm_msg, &pdn_con_req);
if(err != LIBLTE_SUCCESS){
m_s1ap_log->error("Error unpacking NAS PDN Connectivity Request. Error: %s\n", liblte_error_text[err]);
return false;
}
// Set the optional flags
uint8_t eps_bearer_id = pdn_con_req.eps_bearer_id; //TODO: Unused
uint8_t proc_transaction_id = pdn_con_req.proc_transaction_id; //TODO: Transaction ID unused
if(pdn_con_req.pdn_type != LIBLTE_MME_PDN_TYPE_IPV4)
{
m_s1ap_log->error("PDN Connectivity Request: Only IPv4 connectivity supported.\n");
return false;
}
if(pdn_con_req.request_type != LIBLTE_MME_REQUEST_TYPE_INITIAL_REQUEST)
{
m_s1ap_log->error("PDN Connectivity Request: Only Initial Request supported.\n");
return false;
}
//Handle the optional flags
if(pdn_con_req.esm_info_transfer_flag_present){}
if(pdn_con_req.apn_present){}
if(pdn_con_req.protocol_cnfg_opts_present){}
if(pdn_con_req.device_properties_present){}
/*Log unhandled IEs*/
if(msg->S_TMSI_present){
m_s1ap_log->warning("S-TMSI present, but not handled.");
@ -350,7 +359,9 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *msg
if(!m_hss->get_k_amf_op(imsi, k, amf, op))
{
m_s1ap_log->info("User %d not found",imsi);
m_s1ap_log->console("User not found. IMSI %015lu\n",imsi);
m_s1ap_log->info("User not found. IMSI %015lu\n",imsi);
return false;
}
@ -393,6 +404,22 @@ s1ap::handle_initial_ue_message(LIBLTE_S1AP_MESSAGE_INITIALUEMESSAGE_STRUCT *msg
}LIBLTE_MME_ATTACH_REQUEST_MSG_STRUCT;
*/
/*
typedef struct{
LIBLTE_MME_ACCESS_POINT_NAME_STRUCT apn;
LIBLTE_MME_PROTOCOL_CONFIG_OPTIONS_STRUCT protocol_cnfg_opts;
LIBLTE_MME_ESM_INFO_TRANSFER_FLAG_ENUM esm_info_transfer_flag;
LIBLTE_MME_DEVICE_PROPERTIES_ENUM device_properties;
uint8 eps_bearer_id;
uint8 proc_transaction_id;
uint8 pdn_type;
uint8 request_type;
bool esm_info_transfer_flag_present;
bool apn_present;
bool protocol_cnfg_opts_present;
bool device_properties_present;
}LIBLTE_MME_PDN_CONNECTIVITY_REQUEST_MSG_STRUCT;
*/
/*
typedef struct{
bool ext;
LIBLTE_S1AP_ENB_UE_S1AP_ID_STRUCT eNB_UE_S1AP_ID;