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[SGsAP] Location Update Reject

This commit is contained in:
Sukchan Lee 2019-07-05 15:55:07 +09:00
parent 334c678995
commit 4f7aa2d5b7
8 changed files with 302 additions and 33 deletions
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1
lib/nas/nas-types.h
View File

@ -377,6 +377,7 @@ ED3(uint8_t cn_specific_drx_cycle_length_coefficient_and_drx_value_for_s1_mode:4
* A.1 Causes related to UE identification */
#define EMM_CAUSE_IMSI_UNKNOWN_IN_HSS 2
#define EMM_CAUSE_ILLEGAL_UE 3
#define EMM_CAUSE_IMSI_UNKNOWN_IN_VLR 4
#define EMM_CAUSE_ILLEGAL_ME 6
#define EMM_CAUSE_UE_IDENTITY_CANNOT_BE_DERIVED_BY_THE_NETWORK 9
#define EMM_CAUSE_IMPLICITLY_DETACHED 10

97
src/mme/sgsap-handler.c
View File

@ -58,13 +58,16 @@ void sgsap_handler_location_update_accept(mme_vlr_t *vlr, ogs_pkbuf_t *pkbuf)
case SGSAP_IE_MOBILE_IDENTITY_TYPE:
nas_mobile_identity_tmsi = iter->value;
break;
default:
ogs_warn("Invalid Type [%d]", iter->type);
break;
}
iter = iter->next;
}
ogs_tlv_free_all(root);
ogs_assert(nas_mobile_identity_imsi && lai && nas_mobile_identity_tmsi);
ogs_assert(nas_mobile_identity_imsi && lai);
ogs_assert(nas_mobile_identity_imsi_len == SGSAP_IE_IMSI_LEN);
if (nas_mobile_identity_imsi->type == NAS_MOBILE_IDENTITY_IMSI) {
@ -73,24 +76,23 @@ void sgsap_handler_location_update_accept(mme_vlr_t *vlr, ogs_pkbuf_t *pkbuf)
nas_imsi_to_bcd(nas_mobile_identity_imsi,
nas_mobile_identity_imsi_len, imsi_bcd);
mme_ue = mme_ue_find_by_imsi_bcd(imsi_bcd);
} else {
ogs_error("Not supported Identity type[%d]",
nas_mobile_identity_imsi->type);
goto error;
}
} else
ogs_assert_if_reached();
ogs_assert(mme_ue);
if (nas_mobile_identity_tmsi->type == NAS_MOBILE_IDENTITY_TMSI) {
mme_ue->p_tmsi = ntohl(nas_mobile_identity_tmsi->tmsi);
} else {
ogs_error("Not supported Identity type[%d]",
nas_mobile_identity_tmsi->type);
goto error;
}
ogs_debug(" IMSI[%s]", mme_ue->imsi_bcd);
ogs_debug(" IMSI[%s] P-TMSI[0x%08x]",
mme_ue->imsi_bcd, mme_ue->p_tmsi);
if (nas_mobile_identity_tmsi) {
if (nas_mobile_identity_tmsi->type == NAS_MOBILE_IDENTITY_TMSI) {
mme_ue->p_tmsi = ntohl(nas_mobile_identity_tmsi->tmsi);
} else {
ogs_error("Not supported Identity type[%d]",
nas_mobile_identity_tmsi->type);
goto error;
}
ogs_debug(" P-TMSI[0x%08x]", mme_ue->p_tmsi);
}
nas_send_attach_accept(mme_ue);
@ -105,3 +107,68 @@ error:
ESM_CAUSE_PROTOCOL_ERROR_UNSPECIFIED);
mme_send_delete_session_or_ue_context_release(mme_ue, enb_ue);
}
void sgsap_handler_location_update_reject(mme_vlr_t *vlr, ogs_pkbuf_t *pkbuf)
{
ogs_tlv_t *root = NULL, *iter = NULL;
mme_ue_t *mme_ue = NULL;
enb_ue_t *enb_ue = NULL;
nas_mobile_identity_imsi_t *nas_mobile_identity_imsi = NULL;
int nas_mobile_identity_imsi_len = 0;
nas_emm_cause_t emm_cause = 0;
ogs_assert(vlr);
ogs_assert(pkbuf);
ogs_warn("[SGSAP] LOCATION-UPDATE-REJECT");
ogs_pkbuf_pull(pkbuf, 1);
root = ogs_tlv_parse_block(pkbuf->len, pkbuf->data, OGS_TLV_MODE_T1_L1);
ogs_assert(root);
iter = root;
while (iter) {
switch (iter->type) {
case SGSAP_IE_IMSI_TYPE:
nas_mobile_identity_imsi = iter->value;
nas_mobile_identity_imsi_len = iter->length;
break;
case SGSAP_IE_LAI_TYPE:
break;
case SGSAP_IE_REJECT_CAUSE_TYPE:
emm_cause = *((uint8_t*)(iter->value));
break;
default:
ogs_warn("Invalid Type [%d]", iter->type);
break;
}
iter = iter->next;
}
ogs_tlv_free_all(root);
ogs_assert(nas_mobile_identity_imsi && emm_cause);
ogs_assert(nas_mobile_identity_imsi_len == SGSAP_IE_IMSI_LEN);
if (nas_mobile_identity_imsi->type == NAS_MOBILE_IDENTITY_IMSI) {
char imsi_bcd[MAX_IMSI_BCD_LEN+1];
nas_imsi_to_bcd(nas_mobile_identity_imsi,
nas_mobile_identity_imsi_len, imsi_bcd);
mme_ue = mme_ue_find_by_imsi_bcd(imsi_bcd);
} else
ogs_assert_if_reached();
ogs_assert(mme_ue);
ogs_debug(" IMSI[%s] CAUSE[%d]", mme_ue->imsi_bcd, emm_cause);
enb_ue = mme_ue->enb_ue;
ogs_assert(enb_ue);
nas_send_attach_reject(mme_ue,
emm_cause, ESM_CAUSE_PROTOCOL_ERROR_UNSPECIFIED);
mme_send_delete_session_or_ue_context_release(mme_ue, enb_ue);
}

1
src/mme/sgsap-handler.h
View File

@ -27,6 +27,7 @@ extern "C" {
#endif
void sgsap_handler_location_update_accept(mme_vlr_t *vlr, ogs_pkbuf_t *pkbuf);
void sgsap_handler_location_update_reject(mme_vlr_t *vlr, ogs_pkbuf_t *pkbuf);
#ifdef __cplusplus
}

3
src/mme/sgsap-sm.c
View File

@ -120,6 +120,9 @@ void sgsap_state_connected(ogs_fsm_t *s, mme_event_t *e)
case SGSAP_LOCATION_UPDATE_ACCEPT:
sgsap_handler_location_update_accept(vlr, pkbuf);
break;
case SGSAP_LOCATION_UPDATE_REJECT:
sgsap_handler_location_update_reject(vlr, pkbuf);
break;
default:
ogs_warn("Not implemented(type:%d)", type);
break;

3
src/mme/sgsap-types.h
View File

@ -28,6 +28,7 @@ extern "C" {
#define SGSAP_SERVICE_REQUEST 6
#define SGSAP_LOCATION_UPDATE_REQUEST 9
#define SGSAP_LOCATION_UPDATE_ACCEPT 10
#define SGSAP_LOCATION_UPDATE_REJECT 11
#define SGSAP_TMSI_REALLOCATION_COMPLETE 12
#define SGSAP_MO_CSFB_INDICIATION 24
@ -43,6 +44,8 @@ extern "C" {
#define SGSAP_IE_EPS_UPDATE_LEN 1
#define SGSAP_IE_MOBILE_IDENTITY_TYPE 14
#define SGSAP_IE_MOBILE_IDENTITY_LEN 5
#define SGSAP_IE_REJECT_CAUSE_TYPE 15
#define SGSAP_IE_REJECT_CAUSE_LEN 1
#define SGSAP_IE_SERVICE_INDICATOR_TYPE 32
#define SGSAP_IE_SERVICE_INDICATOR_LEN 1
#define SGSAP_IE_UE_EMM_MODE_TYPE 37

22
tests/common/test-packet.c
View File

@ -3023,3 +3023,25 @@ int testsgsap_location_update_accept(ogs_pkbuf_t **pkbuf, int i)
return OGS_OK;
}
int testsgsap_location_update_reject(ogs_pkbuf_t **pkbuf, int i)
{
char *payload[TESTS1AP_MAX_MESSAGE] = {
"0b01082926240000 1118930f01030405 09f1070926",
"",
"",
};
uint16_t len[TESTS1AP_MAX_MESSAGE] = {
21,
0,
0,
};
char hexbuf[MAX_SDU_LEN];
*pkbuf = ogs_pkbuf_alloc(NULL, MAX_SDU_LEN);
ogs_pkbuf_put_data(*pkbuf,
OGS_HEX(payload[i], strlen(payload[i]), hexbuf), len[i]);
return OGS_OK;
}

1
tests/common/test-packet.h
View File

@ -130,6 +130,7 @@ int testgtpu_build_ping(ogs_pkbuf_t **sendbuf,
int testgtpu_build_slacc_rs(ogs_pkbuf_t **sendbuf, int i);
int testsgsap_location_update_accept(ogs_pkbuf_t **pkbuf, int i);
int testsgsap_location_update_reject(ogs_pkbuf_t **pkbuf, int i);
#ifdef __cplusplus
}

207
tests/csfb/csfb-test.c
View File

@ -16,7 +16,6 @@ static void test1_func(abts_case *tc, void *data)
{
int rv;
ogs_socknode_t *s1ap;
ogs_socknode_t *gtpu;
ogs_pkbuf_t *sendbuf;
ogs_pkbuf_t *recvbuf;
s1ap_message_t message;
@ -105,10 +104,6 @@ static void test1_func(abts_case *tc, void *data)
s1ap = testenb_s1ap_client("127.0.0.1");
ABTS_PTR_NOTNULL(tc, s1ap);
/* eNB connects to SGW */
gtpu = testenb_gtpu_server("127.0.0.5");
ABTS_PTR_NOTNULL(tc, gtpu);
/* Send S1-Setup Reqeust */
rv = tests1ap_build_setup_req(
&sendbuf, S1AP_ENB_ID_PR_macroENB_ID, 0x0019b0, 7, 901, 70, 2);
@ -145,6 +140,7 @@ static void test1_func(abts_case *tc, void *data)
bson_destroy(doc);
/* Send Attach Request */
mme_self()->mme_ue_s1ap_id = 0;
rv = tests1ap_build_initial_ue_msg(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
@ -263,17 +259,6 @@ static void test1_func(abts_case *tc, void *data)
recvbuf->len) == 0);
ogs_pkbuf_free(recvbuf);
/* Send GTP-U ICMP Packet */
rv = testgtpu_build_ping(&sendbuf, "45.45.0.2", "45.45.0.1");
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_gtpu_send(gtpu, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive GTP-U ICMP Packet */
recvbuf = testenb_gtpu_read(gtpu);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Retreive M-TMSI */
enb_ue = enb_ue_find_by_mme_ue_s1ap_id(1);
ogs_assert(enb_ue);
@ -344,9 +329,194 @@ static void test1_func(abts_case *tc, void *data)
/* eNB disonncect from MME */
testenb_s1ap_close(s1ap);
}
/* eNB disonncect from SGW */
testenb_gtpu_close(gtpu);
static void test2_func(abts_case *tc, void *data)
{
int rv;
ogs_socknode_t *s1ap;
ogs_pkbuf_t *sendbuf;
ogs_pkbuf_t *recvbuf;
s1ap_message_t message;
int i;
int msgindex = 18;
enb_ue_t *enb_ue = NULL;
mme_ue_t *mme_ue = NULL;
uint32_t m_tmsi = 0;
mongoc_collection_t *collection = NULL;
bson_t *doc = NULL;
int64_t count = 0;
bson_error_t error;
const char *json =
"{"
"\"_id\" : { \"$oid\" : \"310014158b8861d7605378c6\" }, "
"\"imsi\" : \"262420000118139\", "
"\"pdn\" : ["
"{"
"\"apn\" : \"internet\", "
"\"_id\" : { \"$oid\" : \"310014158b8861d7605378c7\" }, "
"\"ambr\" : {"
"\"uplink\" : { \"$numberLong\" : \"1000000\" }, "
"\"downlink\" : { \"$numberLong\" : \"1000000\" } "
"},"
"\"qos\" : { "
"\"qci\" : 9, "
"\"arp\" : { "
"\"priority_level\" : 8,"
"\"pre_emption_vulnerability\" : 0, "
"\"pre_emption_capability\" : 0"
"} "
"}, "
"\"type\" : 2"
"}"
"],"
"\"ambr\" : { "
"\"uplink\" : { \"$numberLong\" : \"1000000\" }, "
"\"downlink\" : { \"$numberLong\" : \"1000000\" } "
"},"
"\"subscribed_rau_tau_timer\" : 12,"
"\"network_access_mode\" : 2, "
"\"subscriber_status\" : 0, "
"\"access_restriction_data\" : 32, "
"\"security\" : { "
"\"k\" : \"70D49A71DD1A2B806A25ABE0EF749F1E\", "
"\"opc\" : \"6F1BF53D624B3A43AF6592854E2444C7\", "
"\"amf\" : \"8000\", "
"\"sqn\" : { \"$numberLong\" : \"2374\" }, "
"\"rand\" : \"aa266700bc2887354e9f87368d5d0ae7\" "
"}, "
"\"__v\" : 0 "
"}";
/* eNB connects to MME */
s1ap = testenb_s1ap_client("127.0.0.1");
ABTS_PTR_NOTNULL(tc, s1ap);
/* Send S1-Setup Reqeust */
rv = tests1ap_build_setup_req(
&sendbuf, S1AP_ENB_ID_PR_macroENB_ID, 0x0019b0, 7, 901, 70, 2);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive S1-Setup Response */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
rv = s1ap_decode_pdu(&message, recvbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
s1ap_free_pdu(&message);
ogs_pkbuf_free(recvbuf);
collection = mongoc_client_get_collection(
context_self()->db.client,
context_self()->db.name, "subscribers");
ABTS_PTR_NOTNULL(tc, collection);
/********** Insert Subscriber in Database */
doc = bson_new_from_json((const uint8_t *)json, -1, &error);;
ABTS_PTR_NOTNULL(tc, doc);
ABTS_TRUE(tc, mongoc_collection_insert(collection,
MONGOC_INSERT_NONE, doc, NULL, &error));
bson_destroy(doc);
doc = BCON_NEW("imsi", BCON_UTF8("262420000118139"));
ABTS_PTR_NOTNULL(tc, doc);
do {
count = mongoc_collection_count (
collection, MONGOC_QUERY_NONE, doc, 0, 0, NULL, &error);
} while (count == 0);
bson_destroy(doc);
/* Send Attach Request */
mme_self()->mme_ue_s1ap_id = 0;
rv = tests1ap_build_initial_ue_msg(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Identity-Request */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Send Identity Response */
rv = tests1ap_build_identity_response(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Authentication Request */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Send Authentication Response */
rv = tests1ap_build_authentication_response(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Security mode Command */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Send Security mode Complete */
rv = tests1ap_build_security_mode_complete(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive ESM Information Request */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Send ESM Information Response */
rv = tests1ap_build_esm_information_response(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive SGsAP-Location-Update-Request */
recvbuf = testvlr_sgsap_read(sgsap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Send SGsAP-Location-Update-Reject */
rv = testsgsap_location_update_reject(&sendbuf, 0);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testvlr_sgsap_send(sgsap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/* Receive Attach Reject */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Receive UE Release Command */
recvbuf = testenb_s1ap_read(s1ap);
ABTS_PTR_NOTNULL(tc, recvbuf);
ogs_pkbuf_free(recvbuf);
/* Send UE Context Release Complete */
rv = tests1ap_build_ue_context_release_complete(&sendbuf, msgindex);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
rv = testenb_s1ap_send(s1ap, sendbuf);
ABTS_INT_EQUAL(tc, OGS_OK, rv);
/********** Remove Subscriber in Database */
doc = BCON_NEW("imsi", BCON_UTF8("262420000118139"));
ABTS_PTR_NOTNULL(tc, doc);
ABTS_TRUE(tc, mongoc_collection_remove(collection,
MONGOC_REMOVE_SINGLE_REMOVE, doc, NULL, &error))
bson_destroy(doc);
mongoc_collection_destroy(collection);
/* eNB disonncect from MME */
testenb_s1ap_close(s1ap);
}
abts_suite *test_csfb(abts_suite *suite)
@ -354,6 +524,7 @@ abts_suite *test_csfb(abts_suite *suite)
suite = ADD_SUITE(suite)
abts_run_test(suite, test1_func, NULL);
abts_run_test(suite, test2_func, NULL);
return suite;
}