5g-team
/
srsRAN_4G
mirror of https://github.com/pvnis/srsRAN_4G.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Changing handle initial context setup response.

Browse Source
master
Pedro Alvarez 6 years ago
parent 4d40e9ca2d
commit e9528155b5
1 changed files with 21 additions and 24 deletions
Show Stats Download Patch File Download Diff File

45
srsepc/src/mme/s1ap_ctx_mngmt_proc.cc
Unescape Escape View File

@ -190,53 +190,50 @@ bool
s1ap_ctx_mngmt_proc::handle_initial_context_setup_response(LIBLTE_S1AP_MESSAGE_INITIALCONTEXTSETUPRESPONSE_STRUCT *in_ctxt_resp) s1ap_ctx_mngmt_proc::handle_initial_context_setup_response(LIBLTE_S1AP_MESSAGE_INITIALCONTEXTSETUPRESPONSE_STRUCT *in_ctxt_resp)
{ {
uint32_t mme_ue_s1ap_id = in_ctxt_resp->MME_UE_S1AP_ID.MME_UE_S1AP_ID; uint32_t mme_ue_s1ap_id = in_ctxt_resp->MME_UE_S1AP_ID.MME_UE_S1AP_ID;
ue_ctx_t *ue_ctx = m_s1ap->find_ue_ctx_from_mme_ue_s1ap_id(mme_ue_s1ap_id); nas *nas_ctx = m_s1ap->find_nas_ctx_from_mme_ue_s1ap_id(mme_ue_s1ap_id);
if (ue_ctx == NULL) if (nas_ctx == NULL){
{
m_s1ap_log->error("Could not find UE's context in active UE's map\n"); m_s1ap_log->error("Could not find UE's context in active UE's map\n");
return false; return false;
} }
ue_emm_ctx_t * emm_ctx = &ue_ctx->emm_ctx;
ue_ecm_ctx_t * ecm_ctx = &ue_ctx->ecm_ctx; emm_ctx_t * emm_ctx = &nas_ctx->m_emm_ctx;
ecm_ctx_t * ecm_ctx = &nas_ctx->m_ecm_ctx;
m_s1ap_log->console("Received Initial Context Setup Response\n"); m_s1ap_log->console("Received Initial Context Setup Response\n");
//Setup E-RABs //Setup E-RABs
for(uint32_t i=0; i<in_ctxt_resp->E_RABSetupListCtxtSURes.len;i++) for (uint32_t i=0; i<in_ctxt_resp->E_RABSetupListCtxtSURes.len;i++) {
{
uint8_t erab_id = in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].e_RAB_ID.E_RAB_ID; uint8_t erab_id = in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].e_RAB_ID.E_RAB_ID;
erab_ctx_t *erab_ctx = &ecm_ctx->erabs_ctx[erab_id]; esm_ctx_t *esm_ctx = &nas_ctx->m_esm_ctx[erab_id];
if (erab_ctx->state != ERAB_CTX_REQUESTED) if (esm_ctx->state != ERAB_CTX_REQUESTED) {
{
m_s1ap_log->error("E-RAB requested was not previously requested %d\n",erab_id); m_s1ap_log->error("E-RAB requested was not previously requested %d\n",erab_id);
return false; return false;
} }
//Mark E-RAB with context setup //Mark E-RAB with context setup
erab_ctx->state = ERAB_CTX_SETUP; esm_ctx->state = ERAB_CTX_SETUP;
//Set the GTP information //Set the GTP information
uint8_t *bit_ptr = in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].transportLayerAddress.buffer; uint8_t *bit_ptr = in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].transportLayerAddress.buffer;
erab_ctx->enb_fteid.ipv4 = htonl(liblte_bits_2_value(&bit_ptr,32)); esm_ctx->enb_fteid.ipv4 = htonl(liblte_bits_2_value(&bit_ptr,32));
memcpy(&erab_ctx->enb_fteid.teid, in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].gTP_TEID.buffer, 4); memcpy(&esm_ctx->enb_fteid.teid, in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].gTP_TEID.buffer, 4);
erab_ctx->enb_fteid.teid = ntohl(erab_ctx->enb_fteid.teid); esm_ctx->enb_fteid.teid = ntohl(esm_ctx->enb_fteid.teid);
char enb_addr_str[INET_ADDRSTRLEN+1]; char enb_addr_str[INET_ADDRSTRLEN+1];
const char *err = inet_ntop(AF_INET, &erab_ctx->enb_fteid.ipv4,enb_addr_str,sizeof(enb_addr_str)); const char *err = inet_ntop(AF_INET, &esm_ctx->enb_fteid.ipv4,enb_addr_str,sizeof(enb_addr_str));
if(err == NULL) if (err == NULL) {
{
m_s1ap_log->error("Error converting IP to string\n"); m_s1ap_log->error("Error converting IP to string\n");
} }
m_s1ap_log->info("E-RAB Context Setup. E-RAB id %d\n",erab_ctx->erab_id); m_s1ap_log->info("E-RAB Context Setup. E-RAB id %d\n",esm_ctx->erab_id);
m_s1ap_log->info("E-RAB Context -- eNB TEID 0x%x, eNB Address %s\n", erab_ctx->enb_fteid.teid, enb_addr_str); m_s1ap_log->info("E-RAB Context -- eNB TEID 0x%x, eNB Address %s\n", esm_ctx->enb_fteid.teid, enb_addr_str);
m_s1ap_log->console("E-RAB Context Setup. E-RAB id %d\n",erab_ctx->erab_id); m_s1ap_log->console("E-RAB Context Setup. E-RAB id %d\n",esm_ctx->erab_id);
m_s1ap_log->console("E-RAB Context -- eNB TEID 0x%x; eNB GTP-U Address %s\n", erab_ctx->enb_fteid.teid, enb_addr_str); m_s1ap_log->console("E-RAB Context -- eNB TEID 0x%x; eNB GTP-U Address %s\n", esm_ctx->enb_fteid.teid, enb_addr_str);
} }
if(emm_ctx->state == EMM_STATE_REGISTERED)
{ if (emm_ctx->state == EMM_STATE_REGISTERED) {
m_s1ap_log->console("Initial Context Setup Response triggered from Service Request.\n"); m_s1ap_log->console("Initial Context Setup Response triggered from Service Request.\n");
m_s1ap_log->console("Sending Modify Bearer Request.\n"); m_s1ap_log->console("Sending Modify Bearer Request.\n");
m_mme_gtpc->send_modify_bearer_request(emm_ctx->imsi, &ecm_ctx->erabs_ctx[5]); m_mme_gtpc->send_modify_bearer_request(emm_ctx->imsi, &nas_ctx->m_esm_ctx[5]);
} }
return true; return true;
} }

Write Preview
Loading…
Cancel
Save