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implement securityCommandComplete

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This commit is contained in:
He Shanyun
2020-09-18 05:07:20 +00:00
parent e5216cdba3
commit bb73d64186
3 changed files with 140 additions and 0 deletions
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openair2/RRC/NR/rrc_gNB.c
+25
View File
@@ -773,6 +773,28 @@ rrc_gNB_decode_dcch(
ue_context_p->ue_context.ue_release_timer = 0;
break;
case NR_UL_DCCH_MessageType__c1_PR_securityModeComplete:
// to avoid segmentation fault
if(!ue_context_p) {
LOG_I(NR_RRC, "Processing securityModeComplete UE %x, ue_context_p is NULL\n", ctxt_pP->rnti);
break;
}
LOG_I(NR_RRC,
PROTOCOL_NR_RRC_CTXT_UE_FMT" received securityModeComplete on UL-DCCH %d from UE\n",
PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),
DCCH);
LOG_D(NR_RRC,
PROTOCOL_NR_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes "
"(securityModeComplete) ---> RRC_eNB\n",
PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),
DCCH,
sdu_sizeP);
if ( LOG_DEBUGFLAG(DEBUG_ASN1) ) {
xer_fprint(stdout, &asn_DEF_NR_UL_DCCH_Message, (void *)ul_dcch_msg);
}
break;
case NR_UL_DCCH_MessageType__c1_PR_ueCapabilityInformation:
break;
@@ -935,6 +957,9 @@ void *rrc_gnb_task(void *args_p) {
case X2AP_ENDC_SGNB_RECONF_COMPLETE:
LOG_I(NR_RRC, "Handling of reconfiguration complete message at RRC gNB is pending \n");
break;
case NGAP_INITIAL_CONTEXT_SETUP_REQ:
rrc_gNB_process_NGAP_INITIAL_CONTEXT_SETUP_REQ(msg_p, msg_name_p, instance);
break;
default:
LOG_E(NR_RRC, "[gNB %d] Received unexpected message %s\n", instance, msg_name_p);
openair2/RRC/NR/rrc_gNB_NGAP.c
+102
View File
@@ -292,3 +292,105 @@ rrc_gNB_process_NGAP_INITIAL_CONTEXT_SETUP_REQ(
return 0;
}
}
//------------------------------------------------------------------------------
void
rrc_gNB_send_NGAP_INITIAL_CONTEXT_SETUP_RESP(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *const ue_context_pP
)
//------------------------------------------------------------------------------
{
MessageDef *msg_p = NULL;
int e_rab;
int e_rabs_done = 0;
int e_rabs_failed = 0;
msg_p = itti_alloc_new_message (TASK_RRC_ENB, NGAP_INITIAL_CONTEXT_SETUP_RESP);
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).gNB_ue_ngap_id = ue_context_pP->ue_context.gNB_ue_ngap_id;
for (e_rab = 0; e_rab < ue_context_pP->ue_context.nb_of_e_rabs; e_rab++) {
if (ue_context_pP->ue_context.e_rab[e_rab].status == E_RAB_STATUS_DONE) {
e_rabs_done++;
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).pdusessions[e_rab].pdusession_id = ue_context_pP->ue_context.e_rab[e_rab].param.e_rab_id;
// TODO add other information from S1-U when it will be integrated
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).pdusessions[e_rab].gtp_teid = ue_context_pP->ue_context.gnb_gtp_teid[e_rab];
memcpy(NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).pdusessions[e_rab].gNB_addr.buffer , ue_context_pP->ue_context.gnb_gtp_addrs[e_rab].buffer, 20);
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).pdusessions[e_rab].gNB_addr.length = 4;
ue_context_pP->ue_context.e_rab[e_rab].status = E_RAB_STATUS_ESTABLISHED;
} else {
e_rabs_failed++;
ue_context_pP->ue_context.e_rab[e_rab].status = E_RAB_STATUS_FAILED;
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).pdusessions_failed[e_rab].pdusession_id = ue_context_pP->ue_context.e_rab[e_rab].param.e_rab_id;
// TODO add cause when it will be integrated
}
}
MSC_LOG_TX_MESSAGE(
MSC_RRC_GNB,
MSC_S1AP_ENB,
(const char *)&NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p),
sizeof(ngap_initial_context_setup_resp_t),
MSC_AS_TIME_FMT" INITIAL_CONTEXT_SETUP_RESP UE %X eNB_ue_s1ap_id %u e_rabs:%u succ %u fail",
MSC_AS_TIME_ARGS(ctxt_pP),
ue_context_pP->ue_id_rnti,
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).gNB_ue_ngap_id,
e_rabs_done, e_rabs_failed);
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).nb_of_pdusessions = e_rabs_done;
NGAP_INITIAL_CONTEXT_SETUP_RESP (msg_p).nb_of_pdusessions_failed = e_rabs_failed;
itti_send_msg_to_task (TASK_NGAP, ctxt_pP->instance, msg_p);
}
static NR_CipheringAlgorithm_t rrc_gNB_select_ciphering(uint16_t algorithms) {
//#warning "Forced return NR_CipheringAlgorithm_nea0, to be deleted in future"
return NR_CipheringAlgorithm_nea0;
}
static e_NR_IntegrityProtAlgorithm rrc_gNB_select_integrity(uint16_t algorithms) {
// to be continue
return NR_IntegrityProtAlgorithm_nia0;
}
int
rrc_gNB_process_security(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *const ue_context_pP,
security_capabilities_t *security_capabilities_pP
) {
boolean_t changed = FALSE;
NR_CipheringAlgorithm_t cipheringAlgorithm;
e_NR_IntegrityProtAlgorithm integrityProtAlgorithm;
/* Save security parameters */
ue_context_pP->ue_context.security_capabilities = *security_capabilities_pP;
// translation
LOG_D(NR_RRC,
"[eNB %d] NAS security_capabilities.encryption_algorithms %u AS ciphering_algorithm %lu NAS security_capabilities.integrity_algorithms %u AS integrity_algorithm %u\n",
ctxt_pP->module_id,
ue_context_pP->ue_context.security_capabilities.encryption_algorithms,
(unsigned long)ue_context_pP->ue_context.ciphering_algorithm,
ue_context_pP->ue_context.security_capabilities.integrity_algorithms,
ue_context_pP->ue_context.integrity_algorithm);
/* Select relevant algorithms */
cipheringAlgorithm = rrc_gNB_select_ciphering (ue_context_pP->ue_context.security_capabilities.encryption_algorithms);
if (ue_context_pP->ue_context.ciphering_algorithm != cipheringAlgorithm) {
ue_context_pP->ue_context.ciphering_algorithm = cipheringAlgorithm;
changed = TRUE;
}
integrityProtAlgorithm = rrc_gNB_select_integrity (ue_context_pP->ue_context.security_capabilities.integrity_algorithms);
if (ue_context_pP->ue_context.integrity_algorithm != integrityProtAlgorithm) {
ue_context_pP->ue_context.integrity_algorithm = integrityProtAlgorithm;
changed = TRUE;
}
LOG_I (NR_RRC, "[eNB %d][UE %x] Selected security algorithms (%p): %lx, %x, %s\n",
ctxt_pP->module_id,
ue_context_pP->ue_context.rnti,
security_capabilities_pP,
(unsigned long)cipheringAlgorithm,
integrityProtAlgorithm,
changed ? "changed" : "same");
return changed;
}
openair2/RRC/NR/rrc_gNB_NGAP.h
+13
View File
@@ -55,4 +55,17 @@ rrc_gNB_process_NGAP_INITIAL_CONTEXT_SETUP_REQ(
instance_t instance
);
void
rrc_gNB_send_NGAP_INITIAL_CONTEXT_SETUP_RESP(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *const ue_context_pP
);
int
rrc_gNB_process_security(
const protocol_ctxt_t *const ctxt_pP,
rrc_gNB_ue_context_t *const ue_context_pP,
security_capabilities_t *security_capabilities_pP
);
#endif