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Changing handle initial context setup response.

This commit is contained in:
Pedro Alvarez 2018-07-16 15:39:02 +01:00
parent 4d40e9ca2d
commit e9528155b5
1 changed files with 21 additions and 24 deletions
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45
srsepc/src/mme/s1ap_ctx_mngmt_proc.cc
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@ -190,53 +190,50 @@ bool
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;
ue_ctx_t *ue_ctx = m_s1ap->find_ue_ctx_from_mme_ue_s1ap_id(mme_ue_s1ap_id);
if (ue_ctx == NULL)
{
nas *nas_ctx = m_s1ap->find_nas_ctx_from_mme_ue_s1ap_id(mme_ue_s1ap_id);
if (nas_ctx == NULL){
m_s1ap_log->error("Could not find UE's context in active UE's map\n");
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");
//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;
erab_ctx_t *erab_ctx = &ecm_ctx->erabs_ctx[erab_id];
if (erab_ctx->state != ERAB_CTX_REQUESTED)
{
esm_ctx_t *esm_ctx = &nas_ctx->m_esm_ctx[erab_id];
if (esm_ctx->state != ERAB_CTX_REQUESTED) {
m_s1ap_log->error("E-RAB requested was not previously requested %d\n",erab_id);
return false;
}
//Mark E-RAB with context setup
erab_ctx->state = ERAB_CTX_SETUP;
esm_ctx->state = ERAB_CTX_SETUP;
//Set the GTP information
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));
memcpy(&erab_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.ipv4 = htonl(liblte_bits_2_value(&bit_ptr,32));
memcpy(&esm_ctx->enb_fteid.teid, in_ctxt_resp->E_RABSetupListCtxtSURes.buffer[i].gTP_TEID.buffer, 4);
esm_ctx->enb_fteid.teid = ntohl(esm_ctx->enb_fteid.teid);
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));
if(err == NULL)
{
const char *err = inet_ntop(AF_INET, &esm_ctx->enb_fteid.ipv4,enb_addr_str,sizeof(enb_addr_str));
if (err == NULL) {
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 -- eNB TEID 0x%x, eNB Address %s\n", erab_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 -- eNB TEID 0x%x; eNB GTP-U Address %s\n", erab_ctx->enb_fteid.teid, enb_addr_str);
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", esm_ctx->enb_fteid.teid, enb_addr_str);
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", 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("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;
}