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libmsc/gsm_09_11.c: implement network-initiated sessions
This change introduces a possibility to establish network-initiated SS/USSD transactions with a subscriber in either IDLE, or DEDICATED state. In the first case, a new transaction is established using Paging procedure. If a subscriber already has an active connection, a separate new transaction is established. TTCN-3 test case: I073893c6e11be27e9e36f98f11c1491d0c173985 Change-Id: Ief14f8914ef013bd6efd7be842f81fbf053f02e2
This commit is contained in:
Vadim Yanitskiy
committed by
Harald Welte
Harald Welte
parent
8a6ef55ec5
commit
f2f83b07f3
@@ -77,6 +77,13 @@ struct gsm_trans {
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struct gsm_sms *sms;
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} sms;
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struct {
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/**
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* Stores a GSM 04.80 message to be sent to
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* a subscriber after successful Paging Response
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*/
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struct msgb *msg;
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} ss;
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};
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struct {
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@@ -30,6 +30,7 @@
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#include <errno.h>
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#include <stdbool.h>
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/utils.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/gsm/tlv.h>
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@@ -195,6 +196,163 @@ error:
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return rc;
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}
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/* Call-back from paging the B-end of the connection */
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static int handle_paging_event(unsigned int hooknum, unsigned int event,
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struct msgb *msg, void *_conn, void *_transt)
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{
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struct gsm_subscriber_connection *conn = _conn;
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enum gsm_paging_event paging_event = event;
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struct gsm_trans *transt = _transt;
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struct gsm48_hdr *gh;
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struct msgb *ss_msg;
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OSMO_ASSERT(!transt->conn);
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OSMO_ASSERT(transt->ss.msg);
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switch (paging_event) {
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case GSM_PAGING_SUCCEEDED:
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DEBUGP(DMM, "Paging subscr %s succeeded!\n",
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vlr_subscr_msisdn_or_name(transt->vsub));
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/* Assign connection */
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transt->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_NC_SS);
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transt->paging_request = NULL;
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/* Send stored message */
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ss_msg = transt->ss.msg;
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OSMO_ASSERT(ss_msg);
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gh = (struct gsm48_hdr *) msgb_push(ss_msg, sizeof(*gh));
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gh->proto_discr = GSM48_PDISC_NC_SS;
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gh->proto_discr |= transt->transaction_id << 4;
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gh->msg_type = GSM0480_MTYPE_REGISTER;
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/* Sent to the MS, give ownership of ss_msg */
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msc_tx_dtap(transt->conn, ss_msg);
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transt->ss.msg = NULL;
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break;
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case GSM_PAGING_EXPIRED:
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case GSM_PAGING_BUSY:
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DEBUGP(DMM, "Paging subscr %s %s!\n",
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vlr_subscr_msisdn_or_name(transt->vsub),
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paging_event == GSM_PAGING_EXPIRED ? "expired" : "busy");
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/* TODO: inform HLR about this failure */
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msgb_free(transt->ss.msg);
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transt->ss.msg = NULL;
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transt->callref = 0;
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transt->paging_request = NULL;
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trans_free(transt);
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break;
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}
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return 0;
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}
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static struct gsm_trans *establish_nc_ss_trans(struct gsm_network *net,
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struct vlr_subscr *vsub, struct osmo_gsup_message *gsup_msg)
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{
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struct gsm_subscriber_connection *conn;
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struct gsm_trans *trans, *transt;
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int tid;
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if (gsup_msg->session_state != OSMO_GSUP_SESSION_STATE_BEGIN) {
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LOGP(DMM, LOGL_ERROR, "Received non-BEGIN message "
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"for non-existing transaction\n");
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return NULL;
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}
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if (!gsup_msg->ss_info || gsup_msg->ss_info_len < 2) {
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LOGP(DMM, LOGL_ERROR, "Missing mandatory Facility IE\n");
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return NULL;
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}
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/* If subscriber is not "attached" */
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if (!vsub->lac) {
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LOGP(DMM, LOGL_ERROR, "Network-originated session "
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"rejected - subscriber is not attached\n");
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return NULL;
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}
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DEBUGP(DMM, "Establishing network-originated session\n");
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/* Allocate a new transaction */
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trans = trans_alloc(net, vsub, GSM48_PDISC_NC_SS,
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0xff, gsup_msg->session_id);
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if (!trans) {
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DEBUGP(DMM, " -> No memory for trans\n");
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return NULL;
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}
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/* Assign transaction ID */
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tid = trans_assign_trans_id(trans->net,
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trans->vsub, GSM48_PDISC_NC_SS, 0);
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if (tid < 0) {
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LOGP(DMM, LOGL_ERROR, "No free transaction ID\n");
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/* TODO: inform HLR about this */
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/* TODO: release connection with subscriber */
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trans->callref = 0;
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trans_free(trans);
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return NULL;
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}
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trans->transaction_id = tid;
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/* Attempt to find connection */
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conn = connection_for_subscr(vsub);
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if (conn) {
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/* Assign connection */
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trans->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_NC_SS);
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trans->dlci = 0x00; /* SAPI=0, not SACCH */
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return trans;
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}
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DEBUGP(DMM, "Triggering Paging Request\n");
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/* Find transaction with this subscriber already paging */
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llist_for_each_entry(transt, &net->trans_list, entry) {
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/* Transaction of our conn? */
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if (transt == trans || transt->vsub != vsub)
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continue;
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LOGP(DMM, LOGL_ERROR, "Paging already started, "
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"rejecting message...\n");
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trans_free(trans);
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return NULL;
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}
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/* Trigger Paging Request */
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trans->paging_request = subscr_request_conn(vsub,
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&handle_paging_event, trans, "GSM 09.11 SS/USSD");
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if (!trans->paging_request) {
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LOGP(DMM, LOGL_ERROR, "Failed to allocate paging token\n");
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trans_free(trans);
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return NULL;
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}
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/* Store the Facility IE to be sent */
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OSMO_ASSERT(trans->ss.msg == NULL);
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trans->ss.msg = gsm48_msgb_alloc_name("GSM 04.08 SS/USSD");
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msgb_tlv_put(trans->ss.msg, GSM0480_IE_FACILITY,
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gsup_msg->ss_info_len, gsup_msg->ss_info);
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return NULL;
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}
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/* NC SS specific transaction release.
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* Gets called by trans_free, DO NOT CALL YOURSELF! */
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void _gsm911_nc_ss_trans_free(struct gsm_trans *trans)
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{
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/**
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* TODO: if transaction wasn't properly terminated,
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* we need to do it here by releasing the subscriber
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* connection and sending notification via GSUP...
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*/
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if (trans->ss.msg != NULL)
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msgb_free(trans->ss.msg);
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}
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int gsm0911_gsup_handler(struct vlr_subscr *vsub,
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struct osmo_gsup_message *gsup_msg)
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{
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@@ -225,10 +383,16 @@ int gsm0911_gsup_handler(struct vlr_subscr *vsub,
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/* Attempt to find DTAP-transaction */
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trans = trans_find_by_callref(net, gsup_msg->session_id);
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if (!trans) {
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/* FIXME: network-originated sessions are not supported yet */
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LOGP(DMM, LOGL_ERROR, "Network-originated sessions "
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"are not supported, dropping request...\n");
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return -ENOTSUP;
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/* Attempt to establish a new transaction */
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trans = establish_nc_ss_trans(net, vsub, gsup_msg);
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if (!trans) {
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/* FIXME: send ERROR back to the HLR */
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return -EINVAL;
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}
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/* Wait for Paging Response */
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if (trans->paging_request)
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return 0;
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}
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/* Allocate and prepare a new MT message */
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@@ -31,6 +31,7 @@
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void *tall_trans_ctx;
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void _gsm48_cc_trans_free(struct gsm_trans *trans);
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void _gsm911_nc_ss_trans_free(struct gsm_trans *trans);
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/*! Find a transaction in connection for given protocol + transaction ID
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* \param[in] conn Connection in whihc we want to find transaction
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@@ -129,6 +130,7 @@ void trans_free(struct gsm_trans *trans)
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conn_usage_token = MSC_CONN_USE_TRANS_SMS;
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break;
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case GSM48_PDISC_NC_SS:
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_gsm911_nc_ss_trans_free(trans);
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conn_usage_token = MSC_CONN_USE_TRANS_NC_SS;
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break;
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}
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@@ -75,7 +75,7 @@ static void perform_lu(void)
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EXPECT_CONN_COUNT(0);
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}
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static void _test_ss_ussd(enum ran_type via_ran)
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static void _test_ss_ussd_mo(enum ran_type via_ran)
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{
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/* TODO: UTRAN requires auth and ciph */
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rx_from_ran = via_ran;
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@@ -117,16 +117,99 @@ static void _test_ss_ussd(enum ran_type via_ran)
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EXPECT_CONN_COUNT(0);
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}
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static void test_ss_ussd_geran()
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static void _test_ss_ussd_no(enum ran_type via_ran)
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{
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struct vlr_subscr *vsub;
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/* TODO: UTRAN requires auth and ciph */
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rx_from_ran = via_ran;
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/* Perform Location Update */
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perform_lu();
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BTW("after a while, HLR initiates SS/USSD session");
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paging_expect_imsi(IMSI);
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paging_sent = false;
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vsub = vlr_subscr_find_by_imsi(net->vlr, IMSI);
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OSMO_ASSERT(vsub);
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VERBOSE_ASSERT(llist_count(&vsub->cs.requests), == 0, "%d");
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/* MT: GSM 04.80 REGISTER with request */
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gsup_rx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */
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"0108" "09710000004026f0" /* IMSI TLV */
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"3004" "20000101" /* Session ID TLV */
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"3101" "01" /* Session state: BEGIN */
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"3515" FACILITY_IE_REQ, NULL);
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VERBOSE_ASSERT(llist_count(&vsub->cs.requests), == 1, "%d");
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vlr_subscr_put(vsub);
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vsub = NULL;
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VERBOSE_ASSERT(paging_sent, == true, "%d");
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VERBOSE_ASSERT(paging_stopped, == false, "%d");
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btw("the subscriber and its pending request should remain");
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vsub = vlr_subscr_find_by_imsi(net->vlr, IMSI);
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OSMO_ASSERT(vsub);
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VERBOSE_ASSERT(llist_count(&vsub->cs.requests), == 1, "%d");
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vlr_subscr_put(vsub);
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btw("MS replies with Paging Response, we deliver the NC/USSD");
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dtap_expect_tx("0b3b" "1c15" FACILITY_IE_REQ);
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ms_sends_msg("06270703305882089910070000006402");
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VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d");
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VERBOSE_ASSERT(paging_stopped, == true, "%d");
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btw("MS responds to SS/USSD request");
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/* MO: GSM 04.80 FACILITY with response */
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gsup_expect_tx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */
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"0108" "09710000004026f0" /* IMSI TLV */
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"3004" "20000101" /* Session ID TLV */
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"3101" "02" /* Session state: CONTINUE */
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"3527" FACILITY_IE_RSP);
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ms_sends_msg("8b3a" "27" FACILITY_IE_RSP);
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VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d");
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VERBOSE_ASSERT(paging_stopped, == true, "%d");
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btw("HLR terminates the session");
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/* MT: GSM 04.80 RELEASE COMPLETE without Facility IE */
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dtap_expect_tx("0b2a");
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expect_release_clear(via_ran);
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gsup_rx("20" /* OSMO_GSUP_MSGT_PROC_SS_REQUEST */
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"0108" "09710000004026f0" /* IMSI TLV */
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"3004" "20000101" /* Session ID TLV */
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"3101" "03", /* Session state: END */
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NULL);
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VERBOSE_ASSERT(dtap_tx_confirmed, == true, "%d");
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ASSERT_RELEASE_CLEAR(via_ran);
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btw("all requests serviced, conn has been released");
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bss_sends_clear_complete();
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EXPECT_CONN_COUNT(0);
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}
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static void test_ss_ussd_mo_geran()
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{
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comment_start();
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_test_ss_ussd(RAN_GERAN_A);
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_test_ss_ussd_mo(RAN_GERAN_A);
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clear_vlr();
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comment_end();
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}
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static void test_ss_ussd_no_geran()
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{
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comment_start();
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_test_ss_ussd_no(RAN_GERAN_A);
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clear_vlr();
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comment_end();
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}
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msc_vlr_test_func_t msc_vlr_tests[] = {
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/* TODO: UTRAN requires auth and enc */
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test_ss_ussd_geran,
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test_ss_ussd_mo_geran, /* MS-originated */
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test_ss_ussd_no_geran, /* Network-originated */
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NULL
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};
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@@ -1,7 +1,7 @@
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full talloc report on 'msgb' (total 0 bytes in 1 blocks)
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talloc_total_blocks(tall_bsc_ctx) == 12
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===== test_ss_ussd_geran
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===== test_ss_ussd_mo_geran
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- Location Update request causes a GSUP LU request to HLR
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MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
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new conn
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@@ -201,7 +201,241 @@ DMM Subscr_Conn(CM_SERVICE_REQ:901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing
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DMM Subscr_Conn(CM_SERVICE_REQ:901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
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llist_count(&net->subscr_conns) == 0
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DREF freeing VLR subscr MSISDN:46071
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===== test_ss_ussd_geran: SUCCESS
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===== test_ss_ussd_mo_geran: SUCCESS
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full talloc report on 'msgb' (total 0 bytes in 1 blocks)
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talloc_total_blocks(tall_bsc_ctx) == 12
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===== test_ss_ussd_no_geran
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- Location Update request causes a GSUP LU request to HLR
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MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
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new conn
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DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
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DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
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DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
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DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
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DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000004620 type=IMSI ATTACH
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DMM LU/new-LAC: 1/23
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: Allocated
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: is child of Subscr_Conn(LU:901700000004620)
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: rev=GSM net=GERAN (no Auth)
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
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DREF VLR subscr unknown usage increases to: 1
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DVLR set IMSI on subscriber; IMSI=901700000004620 id=901700000004620
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DVLR New subscr, IMSI: 901700000004620
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DREF VLR subscr IMSI:901700000004620 usage increases to: 2
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DREF VLR subscr IMSI:901700000004620 usage decreases to: 1
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: vlr_loc_upd_post_ciph()
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: vlr_loc_upd_node_4()
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DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_HLR_UPD
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DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: Allocated
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DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: is child of vlr_lu_fsm(LU:901700000004620)
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DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: Received Event UPD_HLR_VLR_E_START
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DVLR GSUP tx: 04010809710000004026f0
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GSUP --> HLR: OSMO_GSUP_MSGT_UPDATE_LOCATION_REQUEST: 04010809710000004026f0
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DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_INIT}: state_chg to UPD_HLR_VLR_S_WAIT_FOR_DATA
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DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
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DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_AUTH_CIPH
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DREF IMSI:901700000004620: MSC conn use - compl_l3 == 0 (0x0: )
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_UNUSED
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Awaiting results for Auth+Ciph, overruling event SUBSCR_CONN_E_UNUSED
|
||||
lu_result_sent == 0
|
||||
- HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: 10010809710000004026f00804036470f1
|
||||
DVLR GSUP rx 17: 10010809710000004026f00804036470f1
|
||||
DREF VLR subscr IMSI:901700000004620 usage increases to: 2
|
||||
DVLR IMSI:901700000004620 has MSISDN:46071
|
||||
DVLR SUBSCR(MSISDN:46071) VLR: update for IMSI=901700000004620 (MSISDN=46071, used=2)
|
||||
DVLR GSUP tx: 12010809710000004026f0
|
||||
GSUP --> HLR: OSMO_GSUP_MSGT_INSERT_DATA_RESULT: 12010809710000004026f0
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 1
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_INSERT_DATA_REQUEST: vlr_gsupc_read_cb() returns 0
|
||||
lu_result_sent == 0
|
||||
- HLR also sends GSUP _UPDATE_LOCATION_RESULT
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: 06010809710000004026f0
|
||||
DVLR GSUP rx 11: 06010809710000004026f0
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 2
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_HLR_LU_RES
|
||||
DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_WAIT_FOR_DATA}: Received Event UPD_HLR_VLR_E_UPD_LOC_ACK
|
||||
DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_WAIT_FOR_DATA}: state_chg to UPD_HLR_VLR_S_DONE
|
||||
DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
|
||||
DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_DONE}: Removing from parent vlr_lu_fsm(LU:901700000004620)
|
||||
DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_DONE}: Freeing instance
|
||||
DVLR upd_hlr_vlr_fsm(LU:901700000004620){UPD_HLR_VLR_S_DONE}: Deallocated
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_HLR_UPD}: Received Event VLR_ULA_E_UPD_HLR_COMPL
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_HLR_UPD}: state_chg to VLR_ULA_S_WAIT_LU_COMPL
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_INIT}: Allocated
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_INIT}: is child of vlr_lu_fsm(LU:901700000004620)
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_INIT}: Received Event LU_COMPL_VLR_E_START
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_INIT}: state_chg to LU_COMPL_VLR_S_WAIT_SUB_PRES
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_INIT}: Allocated
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_INIT}: is child of lu_compl_vlr_fsm(LU:901700000004620)
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_INIT}: Received Event SUB_PRES_VLR_E_START
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_INIT}: state_chg to SUB_PRES_VLR_S_DONE
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_DONE}: Removing from parent lu_compl_vlr_fsm(LU:901700000004620)
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_DONE}: Freeing instance
|
||||
DVLR sub_pres_vlr_fsm(LU:901700000004620){SUB_PRES_VLR_S_DONE}: Deallocated
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_WAIT_SUB_PRES}: Received Event LU_COMPL_VLR_E_SUB_PRES_COMPL
|
||||
- sending LU Accept for MSISDN:46071
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 3
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_WAIT_SUB_PRES}: state_chg to LU_COMPL_VLR_S_DONE
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: Received Event VLR_ULA_E_LU_COMPL_SUCCESS
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_DONE}: Removing from parent vlr_lu_fsm(LU:901700000004620)
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_DONE}: Freeing instance
|
||||
DVLR lu_compl_vlr_fsm(LU:901700000004620){LU_COMPL_VLR_S_DONE}: Deallocated
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_WAIT_LU_COMPL}: state_chg to VLR_ULA_S_DONE
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: Received Event SUBSCR_CONN_E_ACCEPTED
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_AUTH_CIPH}: state_chg to SUBSCR_CONN_S_ACCEPTED
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_UNUSED
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_RELEASING
|
||||
DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 4
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 3
|
||||
- BSSAP Clear --RAN_GERAN_A--> MS
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 2
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_UPDATE_LOCATION_RESULT: vlr_gsupc_read_cb() returns 0
|
||||
- LU was successful, and the conn has already been closed
|
||||
lu_result_sent == 1
|
||||
bssap_clear_sent == 1
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 3
|
||||
vsub != NULL == 1
|
||||
strcmp(vsub->imsi, IMSI) == 0
|
||||
vsub->lac == 23
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 2
|
||||
- BSS sends BSSMAP Clear Complete
|
||||
DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(LU:901700000004620)
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_DONE}: Freeing instance
|
||||
DVLR vlr_lu_fsm(LU:901700000004620){VLR_ULA_S_DONE}: Deallocated
|
||||
DRLL MSISDN:46071: Freeing subscriber connection
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 1
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
|
||||
DMM Subscr_Conn(LU:901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
|
||||
llist_count(&net->subscr_conns) == 0
|
||||
---
|
||||
- after a while, HLR initiates SS/USSD session
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 2
|
||||
llist_count(&vsub->cs.requests) == 0
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_PROC_SS_REQUEST: 20010809710000004026f03004200001013101013515a11302010102013b300b04010f0406aa510c061b01
|
||||
DVLR GSUP rx 43: 20010809710000004026f03004200001013101013515a11302010102013b300b04010f0406aa510c061b01
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 3
|
||||
DMSC Routed to GSM 09.11 SS/USSD handler
|
||||
DMM Establishing network-originated session
|
||||
DCC (ti ff sub MSISDN:46071 callref 20000101) New transaction
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 4
|
||||
DMM Triggering Paging Request
|
||||
DMM Subscriber MSISDN:46071 not paged yet, start paging.
|
||||
RAN_GERAN_A sends out paging request to IMSI 901700000004620, TMSI 0xffffffff, LAC 23
|
||||
strcmp(paging_expecting_imsi, imsi) == 0
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 5
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 4
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_PROC_SS_REQUEST: vlr_gsupc_read_cb() returns -22
|
||||
llist_count(&vsub->cs.requests) == 1
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 3
|
||||
paging_sent == 1
|
||||
paging_stopped == 0
|
||||
- the subscriber and its pending request should remain
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 4
|
||||
llist_count(&vsub->cs.requests) == 1
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 3
|
||||
- MS replies with Paging Response, we deliver the NC/USSD
|
||||
MSC <--RAN_GERAN_A-- MS: GSM48_MT_RR_PAG_RESP
|
||||
new conn
|
||||
DMM Subscr_Conn{SUBSCR_CONN_S_NEW}: Allocated
|
||||
DREF unknown: MSC conn use + compl_l3 == 1 (0x1: compl_l3)
|
||||
DRLL Dispatching 04.08 message GSM48_MT_RR_PAG_RESP (0x6:0x27)
|
||||
DRR PAGING RESPONSE: MI(IMSI)=901700000004620
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_NEW}: Updated ID
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: Allocated
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: is child of Subscr_Conn(PAGING_RESP:901700000004620)
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: rev=GSM net=GERAN (no Auth)
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: Received Event PR_ARQ_E_START
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 4
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 5
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: proc_arq_vlr_fn_post_imsi()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: _proc_arq_vlr_node2()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: _proc_arq_vlr_node2_post_ciph()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: _proc_arq_vlr_node2_post_vlr()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: _proc_arq_vlr_post_pres()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: _proc_arq_vlr_post_trace()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: _proc_arq_vlr_post_imei()
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: proc_arq_fsm_done(PASSED)
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_INIT}: state_chg to PR_ARQ_S_DONE
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_DONE}: Process Access Request result: PASSED
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_ACCEPTED
|
||||
DPAG Paging success for MSISDN:46071 (event=0)
|
||||
DPAG Calling paging cbfn.
|
||||
DMM Paging subscr 46071 succeeded!
|
||||
DREF MSISDN:46071: MSC conn use + trans_nc_ss == 2 (0x41: compl_l3,trans_nc_ss)
|
||||
DMSC msc_tx 25 bytes to MSISDN:46071 via RAN_GERAN_A
|
||||
- DTAP --RAN_GERAN_A--> MS: GSM0480_MTYPE_REGISTER: 0b3b1c15a11302010102013b300b04010f0406aa510c061b01
|
||||
- DTAP matches expected message
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 4
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_ACCEPTED
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_ACCEPTED}: subscr_conn_fsm_has_active_transactions: connection still has active transaction: NCSS
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 3
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMPLETE_LAYER_3
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Event SUBSCR_CONN_E_COMPLETE_LAYER_3 not permitted
|
||||
DREF MSISDN:46071: MSC conn use - compl_l3 == 1 (0x40: trans_nc_ss)
|
||||
dtap_tx_confirmed == 1
|
||||
paging_stopped == 1
|
||||
- MS responds to SS/USSD request
|
||||
MSC <--RAN_GERAN_A-- MS: GSM0480_MTYPE_FACILITY
|
||||
DREF MSISDN:46071: MSC conn use + dtap == 2 (0x42: dtap,trans_nc_ss)
|
||||
DRLL Dispatching 04.08 message GSM0480_MTYPE_FACILITY (0xb:0x3a)
|
||||
DMM Received SS/USSD data (trans_id=0, msg_type=GSM0480_MTYPE_FACILITY)
|
||||
GSUP --> HLR: OSMO_GSUP_MSGT_PROC_SS_REQUEST: 20010809710000004026f03004200001013101023527a225020101302002013b301b04010f0416d9775d0e2ae3e965f73cfd7683d27310cd06bbc51a0d
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_ACCEPTED}: Received Event SUBSCR_CONN_E_COMMUNICATING
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_ACCEPTED}: state_chg to SUBSCR_CONN_S_COMMUNICATING
|
||||
DREF MSISDN:46071: MSC conn use - dtap == 1 (0x40: trans_nc_ss)
|
||||
dtap_tx_confirmed == 1
|
||||
paging_stopped == 1
|
||||
- HLR terminates the session
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_PROC_SS_REQUEST: 20010809710000004026f0300420000101310103
|
||||
DVLR GSUP rx 20: 20010809710000004026f0300420000101310103
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 4
|
||||
DMSC Routed to GSM 09.11 SS/USSD handler
|
||||
DMSC msc_tx 2 bytes to MSISDN:46071 via RAN_GERAN_A
|
||||
- DTAP --RAN_GERAN_A--> MS: GSM0480_MTYPE_RELEASE_COMPLETE: 0b2a
|
||||
- DTAP matches expected message
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 3
|
||||
DREF MSISDN:46071: MSC conn use - trans_nc_ss == 0 (0x0: )
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_COMMUNICATING}: Received Event SUBSCR_CONN_E_UNUSED
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_COMMUNICATING}: state_chg to SUBSCR_CONN_S_RELEASING
|
||||
DREF MSISDN:46071: MSC conn use + release == 1 (0x100: release)
|
||||
DREF VLR subscr MSISDN:46071 usage increases to: 4
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 3
|
||||
- BSSAP Clear --RAN_GERAN_A--> MS
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 2
|
||||
<-- GSUP rx OSMO_GSUP_MSGT_PROC_SS_REQUEST: vlr_gsupc_read_cb() returns 0
|
||||
dtap_tx_confirmed == 1
|
||||
bssap_clear_sent == 1
|
||||
- all requests serviced, conn has been released
|
||||
- BSS sends BSSMAP Clear Complete
|
||||
DREF MSISDN:46071: MSC conn use - release == 0 (0x0: )
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_RELEASING}: Received Event SUBSCR_CONN_E_UNUSED
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_RELEASING}: state_chg to SUBSCR_CONN_S_RELEASED
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_DONE}: Removing from parent Subscr_Conn(PAGING_RESP:901700000004620)
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_DONE}: Freeing instance
|
||||
DVLR Process_Access_Request_VLR(PAGING_RESP:901700000004620){PR_ARQ_S_DONE}: Deallocated
|
||||
DRLL MSISDN:46071: Freeing subscriber connection
|
||||
DREF VLR subscr MSISDN:46071 usage decreases to: 1
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_RELEASED}: Freeing instance
|
||||
DMM Subscr_Conn(PAGING_RESP:901700000004620){SUBSCR_CONN_S_RELEASED}: Deallocated
|
||||
llist_count(&net->subscr_conns) == 0
|
||||
DREF freeing VLR subscr MSISDN:46071
|
||||
===== test_ss_ussd_no_geran: SUCCESS
|
||||
|
||||
full talloc report on 'msgb' (total 0 bytes in 1 blocks)
|
||||
talloc_total_blocks(tall_bsc_ctx) == 12
|
||||
|
||||
Reference in New Issue
Block a user