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dexter gerrit-no-reply at lists.osmocom.orgdexter has uploaded this change for review. ( https://gerrit.osmocom.org/11642
Change subject: WIP: SGs Interface initial code
......................................................................
WIP: SGs Interface initial code
- LU works
- ISMI detach and EPS detach work (but presumably not as it should)
- Paging works so far that if the MSC has to page it may send a paging
request via SGs
Change-Id: I73359925fc1ca72b33a1466e6ac41307f2f0b11d
Related: OS#3615
---
M include/osmocom/msc/Makefile.am
M include/osmocom/msc/debug.h
M include/osmocom/msc/gsm_data.h
M include/osmocom/msc/gsm_subscriber.h
A include/osmocom/msc/sgs_iface.h
A include/osmocom/msc/sgs_vty.h
M include/osmocom/msc/vlr.h
A include/osmocom/msc/vlr_sgs.h
M include/osmocom/msc/vty.h
M src/libmsc/Makefile.am
M src/libmsc/gsm_04_08_cc.c
M src/libmsc/gsm_04_11.c
M src/libmsc/gsm_09_11.c
M src/libmsc/gsm_subscriber.c
M src/libmsc/msc_vty.c
A src/libmsc/sgs_iface.c
A src/libmsc/sgs_vty.c
M src/libmsc/silent_call.c
M src/libvlr/Makefile.am
M src/libvlr/vlr.c
M src/libvlr/vlr_lu_fsm.c
A src/libvlr/vlr_sgs.c
A src/libvlr/vlr_sgs_fsm.c
A src/libvlr/vlr_sgs_fsm.h
M src/osmo-msc/Makefile.am
M src/osmo-msc/msc_main.c
M tests/msc_vlr/msc_vlr_test_authen_reuse.c
M tests/msc_vlr/msc_vlr_test_call.c
M tests/msc_vlr/msc_vlr_test_gsm_authen.c
M tests/msc_vlr/msc_vlr_test_gsm_ciph.c
M tests/msc_vlr/msc_vlr_test_hlr_reject.c
M tests/msc_vlr/msc_vlr_test_hlr_timeout.c
M tests/msc_vlr/msc_vlr_test_ms_timeout.c
M tests/msc_vlr/msc_vlr_test_no_authen.c
M tests/msc_vlr/msc_vlr_test_reject_concurrency.c
M tests/msc_vlr/msc_vlr_test_rest.c
M tests/msc_vlr/msc_vlr_test_ss.c
M tests/msc_vlr/msc_vlr_test_umts_authen.c
M tests/sms_queue/sms_queue_test.c
39 files changed, 2,060 insertions(+), 17 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/42/11642/1
diff --git a/include/osmocom/msc/Makefile.am b/include/osmocom/msc/Makefile.am
index ebc946a..35e8c5e 100644
--- a/include/osmocom/msc/Makefile.am
+++ b/include/osmocom/msc/Makefile.am
@@ -24,11 +24,14 @@
a_reset.h \
osmo_msc.h \
rrlp.h \
+ sgs_iface.h \
+ sgs_vty.h \
signal.h \
silent_call.h \
smpp.h \
sms_queue.h \
transaction.h \
vlr.h \
+ vlr_sgs.h \
vty.h \
$(NULL)
diff --git a/include/osmocom/msc/debug.h b/include/osmocom/msc/debug.h
index 717cf74..28ba482 100644
--- a/include/osmocom/msc/debug.h
+++ b/include/osmocom/msc/debug.h
@@ -21,5 +21,6 @@
DVLR,
DIUCS,
DBSSAP,
+ DSGS,
Debug_LastEntry,
};
diff --git a/include/osmocom/msc/gsm_data.h b/include/osmocom/msc/gsm_data.h
index 085248c..94b5474 100644
--- a/include/osmocom/msc/gsm_data.h
+++ b/include/osmocom/msc/gsm_data.h
@@ -55,6 +55,7 @@
RAN_UNKNOWN,
RAN_GERAN_A, /* 2G / A-interface */
RAN_UTRAN_IU, /* 3G / Iu-interface (IuCS or IuPS) */
+ RAN_UTRAN_SGS, /* 4G / SGs-interface (csfb) */
};
extern const struct value_string ran_type_names[];
@@ -124,7 +125,7 @@
/* back pointers */
struct gsm_network *network;
- /* connected via 2G or 3G? */
+ /* connected via 2G, 3G or 4G csfb via SGs */
enum ran_type via_ran;
uint16_t lac;
diff --git a/include/osmocom/msc/gsm_subscriber.h b/include/osmocom/msc/gsm_subscriber.h
index 01d9c58..762c8e6 100644
--- a/include/osmocom/msc/gsm_subscriber.h
+++ b/include/osmocom/msc/gsm_subscriber.h
@@ -5,6 +5,7 @@
#include <osmocom/core/linuxlist.h>
#include <osmocom/gsm/protocol/gsm_23_003.h>
+#include <osmocom/gsm/protocol/gsm_29_118.h>
#include <osmocom/msc/gsm_data.h>
@@ -54,8 +55,8 @@
*/
struct subscr_request *subscr_request_conn(struct vlr_subscr *vsub,
gsm_cbfn *cbfn, void *param,
- const char *label);
-
+ const char *label,
+ enum sgsap_service_ind serv_ind);
void subscr_remove_request(struct subscr_request *req);
int subscr_rx_paging_response(struct msgb *msg,
struct gsm_subscriber_connection *conn);
diff --git a/include/osmocom/msc/sgs_iface.h b/include/osmocom/msc/sgs_iface.h
new file mode 100644
index 0000000..ea2bd62
--- /dev/null
+++ b/include/osmocom/msc/sgs_iface.h
@@ -0,0 +1,103 @@
+#pragma once
+
+#include <osmocom/gsm/protocol/gsm_23_003.h>
+#include <osmocom/gsm/protocol/gsm_29_118.h>
+#include <osmocom/msc/vlr.h>
+
+enum {
+ SGS_STATE_TS5, /* Started when sending the SGsAP-PAGING-REQUEST */
+ SGS_STATE_TS6_2, /* TMSI reallocation, 5.2.3.5 */
+ SGS_STATE_TS7, /* Started when SGsAP-ALERT-REQUEST is sent 5.3.2.1 */
+ SGS_STATE_TS11, /* Reset ack timeout */
+ SGS_STATE_TS14, /* Started when SGsAP-SERVICE-REQUEST is received 5.15.1 */
+ SGS_STATE_TS15, /* Started when SGsAP-MO-CSFB-INDICATION is received 5.16.3 (UE fallback) */
+ _NUM_SGS_STATE_TIMERS
+};
+
+enum {
+ SGS_STATE_NS7, /* Alert request retransmit */
+ SGS_STATE_NS11, /* Reset repeat */
+ _NUM_SGS_STATE_COUNTERS
+};
+
+static const unsigned int sgs_state_timer_defaults[_NUM_SGS_STATE_TIMERS] = {
+ [SGS_STATE_TS5] = SGS_TS5_DEFAULT,
+ [SGS_STATE_TS6_2] = SGS_TS6_2_DEFAULT,
+ [SGS_STATE_TS7] = SGS_TS7_DEFAULT,
+ [SGS_STATE_TS11] = SGS_TS11_DEFAULT,
+ [SGS_STATE_TS14] = SGS_TS14_DEFAULT,
+ [SGS_STATE_TS15] = SGS_TS15_DEFAULT,
+};
+
+static const unsigned int sgs_state_counter_defaults[_NUM_SGS_STATE_COUNTERS] = {
+ [SGS_STATE_NS7] = SGS_NS7_DEFAULT,
+ [SGS_STATE_NS11] = SGS_NS11_DEFAULT,
+};
+
+/* global SGs state */
+struct sgs_state {
+ /* list of MMEs (sgs_mme_ctx) */
+ struct llist_head mme_list;
+
+ /* list of SCTP client connections */
+ struct llist_head conn_list;
+
+ /* SCTP server for inbound SGs connections */
+ struct osmo_stream_srv_link *srv_link;
+
+ struct {
+ char *local_addr;
+ uint16_t local_port;
+ /* user-configured VLR name (FQDN) */
+ char *vlr_name;
+ /* timers on VLR side */
+ unsigned int timer[_NUM_SGS_STATE_TIMERS];
+ /* countrs on VLR side */
+ unsigned int counter[_NUM_SGS_STATE_COUNTERS];
+ } cfg;
+};
+
+struct sgs_connection {
+ /* global list of SGs connections */
+ struct llist_head list;
+ /* back-pointer */
+ struct sgs_state *sgs;
+
+ /* Socket name from osmo_sock_get_name() */
+ char *sockname;
+
+ /* MME for this connection, if any. This field is NULL until we
+ * receive the first "MME name" IE from the MME, which could be part
+ * of the RESET procedure, but also just a normal LU request. */
+ struct sgs_mme_ctx *mme;
+
+ /* represents the SCTP connection we accept()ed from this MME */
+ struct osmo_stream_srv *srv;
+};
+
+struct sgs_mme_ctx {
+ /* global list of MME contexts */
+ struct llist_head list;
+ /* back-pointer */
+ struct sgs_state *sgs;
+
+ /* MME name as string representation */
+ char fqdn[GSM23003_MME_DOMAIN_LEN + 1];
+
+ /* current connection for this MME, if any. Can be NULL if the SCTP
+ * connection to the MME was lost and hasn't been re-established yet */
+ struct sgs_connection *conn;
+
+ /* FSM for the "VLR reset" procedure" */
+ struct osmo_fsm_inst *fi;
+ unsigned int ns11_remaining;
+};
+
+extern struct sgs_state *g_sgs;
+
+struct sgs_state *sgs_init(void *ctx, struct gsm_network *network);
+int sgs_open(struct sgs_state *sgs);
+int sgs_iface_tx_paging(struct vlr_subscr *vsub, enum sgsap_service_ind serv_ind);
+
+extern const char *sgs_state_timer_names[_NUM_SGS_STATE_TIMERS];
+extern const char *sgs_state_counter_names[_NUM_SGS_STATE_COUNTERS];
diff --git a/include/osmocom/msc/sgs_vty.h b/include/osmocom/msc/sgs_vty.h
new file mode 100644
index 0000000..75a0f24
--- /dev/null
+++ b/include/osmocom/msc/sgs_vty.h
@@ -0,0 +1,3 @@
+#pragma once
+
+void sgs_vty_init(void);
diff --git a/include/osmocom/msc/vlr.h b/include/osmocom/msc/vlr.h
index d52713c..d103be6 100644
--- a/include/osmocom/msc/vlr.h
+++ b/include/osmocom/msc/vlr.h
@@ -102,6 +102,13 @@
struct sgsn_mm_ctx;
struct vlr_instance;
+struct vlr_subscr;
+
+struct sgs_lu_response {
+ bool accepted;
+ struct vlr_subscr *vsub;
+};
+typedef void (*vlr_sgs_lu_response_cb_t) (struct sgs_lu_response * response);
/* The VLR subscriber is the part of the GSM subscriber state in VLR (CS) or
* SGSN (PS), particularly while interacting with the HLR via GSUP */
@@ -151,6 +158,7 @@
struct osmo_fsm_inst *lu_fsm;
struct osmo_fsm_inst *auth_fsm;
struct osmo_fsm_inst *proc_arq_fsm;
+ struct osmo_fsm_inst *sgs_fsm;
bool lu_complete;
time_t expire_lu;
@@ -174,6 +182,13 @@
uint8_t lac;
enum ran_type attached_via_ran;
} cs;
+ /* SGs (MME) specific parts */
+ struct {
+ /* FIXME: probably use cs.lac for instead of introducing another lai here? */
+ struct osmo_location_area_id lai;
+ vlr_sgs_lu_response_cb_t response_cb;
+ char mme_name[55 + 1];
+ } sgs;
struct gsm_classmark classmark;
};
diff --git a/include/osmocom/msc/vlr_sgs.h b/include/osmocom/msc/vlr_sgs.h
new file mode 100644
index 0000000..d177516
--- /dev/null
+++ b/include/osmocom/msc/vlr_sgs.h
@@ -0,0 +1,15 @@
+#pragma once
+
+enum sgs_ue_fsm_state {
+ SGS_UE_ST_NULL,
+ SGS_UE_ST_ASSOCIATED,
+ SGS_UE_ST_LA_UPD_PRES,
+};
+
+void vlr_sgs_reset(struct vlr_instance *vlr);
+int vlr_sgs_loc_update(struct vlr_instance *vlr,
+ vlr_sgs_lu_response_cb_t response_cb,
+ char *mme_name, enum vlr_lu_type type, const char *imsi, struct osmo_location_area_id *new_lai);
+void vlr_sgs_loc_update_acc_sent(struct vlr_subscr *vlr_subscr);
+void vlr_sgs_loc_update_rej_sent(struct vlr_subscr *vlr_subscr);
+void vlr_sgs_detach(struct vlr_instance *vlr, const char *imsi, bool eps);
diff --git a/include/osmocom/msc/vty.h b/include/osmocom/msc/vty.h
index 6a55df7..2a3b18b 100644
--- a/include/osmocom/msc/vty.h
+++ b/include/osmocom/msc/vty.h
@@ -23,6 +23,7 @@
SMPP_NODE,
SMPP_ESME_NODE,
HLR_NODE,
+ CFG_SGS_NODE,
};
int bsc_vty_init_extra(void);
diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am
index 90bbbf8..2cf34cf 100644
--- a/src/libmsc/Makefile.am
+++ b/src/libmsc/Makefile.am
@@ -51,6 +51,8 @@
osmo_msc.c \
ctrl_commands.c \
subscr_conn.c \
+ sgs_iface.c \
+ sgs_vty.c \
$(NULL)
if BUILD_IU
libmsc_a_SOURCES += \
diff --git a/src/libmsc/gsm_04_08_cc.c b/src/libmsc/gsm_04_08_cc.c
index f9888d7..54320d2 100644
--- a/src/libmsc/gsm_04_08_cc.c
+++ b/src/libmsc/gsm_04_08_cc.c
@@ -1995,7 +1995,8 @@
vsub,
setup_trig_pag_evt,
trans,
- "MNCC: establish call");
+ "MNCC: establish call",
+ SGSAP_SERV_IND_CS_CALL);
if (!trans->paging_request) {
LOGP(DCC, LOGL_ERROR, "Failed to allocate paging token.\n");
vlr_subscr_put(vsub);
diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c
index 8d9169b..cb37db6 100644
--- a/src/libmsc/gsm_04_11.c
+++ b/src/libmsc/gsm_04_11.c
@@ -1132,7 +1132,8 @@
/* if not, we have to start paging */
LOGP(DLSMS, LOGL_DEBUG, "Sending SMS: no connection open, start paging %s\n",
vlr_subscr_name(vsub));
- res = subscr_request_conn(vsub, paging_cb_send_sms, sms, "send SMS");
+ res = subscr_request_conn(vsub, paging_cb_send_sms, sms, "send SMS",
+ SGSAP_SERV_IND_SMS);
if (!res) {
send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, GSM_PAGING_BUSY);
sms_free(sms);
diff --git a/src/libmsc/gsm_09_11.c b/src/libmsc/gsm_09_11.c
index b863ce8..9adf5b7 100644
--- a/src/libmsc/gsm_09_11.c
+++ b/src/libmsc/gsm_09_11.c
@@ -347,7 +347,10 @@
/* Trigger Paging Request */
trans->paging_request = subscr_request_conn(vsub,
- &handle_paging_event, trans, "GSM 09.11 SS/USSD");
+ &handle_paging_event,
+ trans,
+ "GSM 09.11 SS/USSD",
+ SGSAP_SERV_IND_SMS);
if (!trans->paging_request) {
LOGP(DMM, LOGL_ERROR, "Failed to allocate paging token\n");
trans_free(trans);
diff --git a/src/libmsc/gsm_subscriber.c b/src/libmsc/gsm_subscriber.c
index fb61209..0645fa9 100644
--- a/src/libmsc/gsm_subscriber.c
+++ b/src/libmsc/gsm_subscriber.c
@@ -49,6 +49,7 @@
#include <osmocom/msc/osmo_msc.h>
#include <osmocom/msc/msc_ifaces.h>
#include <osmocom/msc/a_iface.h>
+#include <osmocom/msc/sgs_iface.h>
void subscr_paging_cancel(struct vlr_subscr *vsub, enum gsm_paging_event event)
{
@@ -110,7 +111,7 @@
return 0;
}
-int msc_paging_request(struct vlr_subscr *vsub)
+static int msc_paging_request(struct vlr_subscr *vsub, enum sgsap_service_ind serv_ind)
{
/* The subscriber was last seen in subscr->lac. Find out which
* BSCs/RNCs are responsible and send them a paging request via open
@@ -123,6 +124,8 @@
vsub->tmsi == GSM_RESERVED_TMSI?
NULL : &vsub->tmsi,
vsub->lac);
+ case RAN_UTRAN_SGS:
+ return sgs_iface_tx_paging(vsub, serv_ind);
default:
break;
}
@@ -143,10 +146,13 @@
* \param cbfn function to call when the conn is established.
* \param param caller defined param to pass to cbfn().
* \param label human readable label of the request kind used for logging.
+ * \param label human readable label of the request kind used for logging.
+ * \param serv_ind sgsap service indicator (in case SGs interface is used to page)
*/
struct subscr_request *subscr_request_conn(struct vlr_subscr *vsub,
gsm_cbfn *cbfn, void *param,
- const char *label)
+ const char *label,
+ enum sgsap_service_ind serv_ind)
{
int rc;
struct subscr_request *request;
@@ -156,7 +162,7 @@
if (!vsub->cs.is_paging) {
LOGP(DMM, LOGL_DEBUG, "Subscriber %s not paged yet, start paging.\n",
vlr_subscr_name(vsub));
- rc = msc_paging_request(vsub);
+ rc = msc_paging_request(vsub, serv_ind);
if (rc <= 0) {
LOGP(DMM, LOGL_ERROR, "Subscriber %s paging failed: %d\n",
vlr_subscr_name(vsub), rc);
diff --git a/src/libmsc/msc_vty.c b/src/libmsc/msc_vty.c
index a16cec8..4683695 100644
--- a/src/libmsc/msc_vty.c
+++ b/src/libmsc/msc_vty.c
@@ -54,6 +54,7 @@
#include <osmocom/msc/signal.h>
#include <osmocom/msc/mncc_int.h>
#include <osmocom/msc/rrlp.h>
+#include <osmocom/msc/vlr_sgs.h>
static struct gsm_network *gsmnet = NULL;
@@ -608,6 +609,17 @@
reqs += 1;
vty_out(vty, " Paging: %s paging for %d requests%s",
vsub->cs.is_paging ? "is" : "not", reqs, VTY_NEWLINE);
+
+ /* SGs related */
+ vty_out(vty, " SGs-state: %s%s",
+ osmo_fsm_state_name(vsub->sgs_fsm->fsm, vsub->sgs_fsm->state),
+ VTY_NEWLINE);
+ if (vsub->sgs.mme_name && strlen(vsub->sgs.mme_name))
+ vty_out(vty, " SGs-MME: %s%s", vsub->sgs.mme_name,
+ VTY_NEWLINE);
+ else
+ vty_out(vty, " SGs-MME: (none)%s", VTY_NEWLINE);
+
vty_out(vty, " Use count: %u%s", vsub->use_count, VTY_NEWLINE);
/* Connection */
@@ -1035,7 +1047,7 @@
return CMD_WARNING;
}
- req = subscr_request_conn(vsub, NULL, NULL, "manual Paging from VTY");
+ req = subscr_request_conn(vsub, NULL, NULL, "manual Paging from VTY", SGSAP_SERV_IND_CS_CALL);
if (req)
vty_out(vty, "%% paging subscriber%s", VTY_NEWLINE);
else
@@ -1401,6 +1413,8 @@
return CMD_SUCCESS;
}
+extern void sgs_vty_init(void);
+
void msc_vty_init(struct gsm_network *msc_network)
{
OSMO_ASSERT(gsmnet == NULL);
@@ -1440,6 +1454,7 @@
#ifdef BUILD_IU
ranap_iu_vty_init(MSC_NODE, &msc_network->iu.rab_assign_addr_enc);
#endif
+ sgs_vty_init();
osmo_fsm_vty_add_cmds();
osmo_signal_register_handler(SS_SCALL, scall_cbfn, NULL);
diff --git a/src/libmsc/sgs_iface.c b/src/libmsc/sgs_iface.c
new file mode 100644
index 0000000..69597be
--- /dev/null
+++ b/src/libmsc/sgs_iface.c
@@ -0,0 +1,976 @@
+/* SGs Interface according to 3GPP TS 23.272 + TS 29.118 */
+
+/* (C 2018 by Harald Welte <laforge at gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/core/socket.h>
+#include <osmocom/core/select.h>
+
+#include <osmocom/gsm/tlv.h>
+#include <osmocom/gsm/gsm48.h>
+#include <osmocom/gsm/gsm23003.h>
+
+#include <osmocom/netif/stream.h>
+
+#include <osmocom/msc/vlr.h>
+#include <osmocom/msc/vlr_sgs.h>
+
+#include <osmocom/msc/debug.h>
+#include <osmocom/msc/sgs_iface.h>
+
+#define S(x) (1 << (x))
+
+static struct osmo_fsm sgs_vlr_reset_fsm;
+
+/* See also comment in a_iface.c */
+static struct gsm_network *gsm_network = NULL;
+
+struct sgs_state *g_sgs;
+
+/***********************************************************************
+ * SGs state per MME connection
+ ***********************************************************************/
+
+struct sgs_state;
+struct sgs_connection;
+
+const char *sgs_state_timer_names[_NUM_SGS_STATE_TIMERS] = {
+ [SGS_STATE_TS5] = "Ts5",
+ [SGS_STATE_TS6_2] = "Ts6-2",
+ [SGS_STATE_TS7] = "Ts7",
+ [SGS_STATE_TS11] = "Ts11",
+ [SGS_STATE_TS14] = "Ts14",
+ [SGS_STATE_TS15] = "Ts15",
+};
+
+const char *sgs_state_counter_names[_NUM_SGS_STATE_COUNTERS] = {
+ [SGS_STATE_NS7] = "Ns7",
+ [SGS_STATE_NS11] = "Ns11",
+};
+
+#define LOGSGC(sgc, lvl, fmt, args...) \
+ LOGP(DSGS, lvl, "%s: " fmt, (sgc)->sockname, ## args)
+
+#define LOGMME(mme, lvl, fmt, args...) \
+ LOGP(DSGS, lvl, "%s: " fmt, (mme)->fqdn ? (mme)->fqdn : (mme)->conn->sockname, ## args)
+
+enum sgs_vlr_reset_fsm_state {
+ SGS_VLRR_ST_NULL,
+ SGS_VLRR_ST_WAIT_ACK,
+ SGS_VLRR_ST_COMPLETE,
+};
+
+enum sgs_vlr_reset_fsm_event {
+ SGS_VLRR_E_START_RESET,
+ SGS_VLRR_E_RX_RESET_ACK,
+};
+
+/***********************************************************************
+ * SGsAP transmit functions
+ ***********************************************************************/
+
+#include <osmocom/gsm/apn.h>
+
+static struct msgb *sgs_msgb_alloc(void)
+{
+ /* by far sufficient for the maximum size message of 298 bytes
+ * (9+7+5+3+10+253+10+1) SGsAP-UP-UD */
+ return msgb_alloc_headroom(1024, 128, "SGsAP");
+}
+
+/*! Encode VLR/MME name from string and append to SGsAP msg */
+static void msgb_sgsap_name_put(struct msgb *msg, enum sgsap_iei iei, const char *name)
+{
+ uint8_t buf[APN_MAXLEN];
+ uint8_t len;
+
+ /* encoding is like DNS names, which is like APN fields */
+ memset(buf, 0, sizeof(buf));
+ len = osmo_apn_from_str(buf, sizeof(buf), name);
+ if (iei == SGSAP_IE_MME_NAME)
+ len = 55;
+ msgb_tlv_put(msg, iei, len, buf);
+}
+
+/*! Encode IMSI from string representation and append to SGSaAP msg */
+static void msgb_sgsap_imsi_put(struct msgb *msg, const char *imsi)
+{
+ uint8_t buf[16];
+ uint8_t len;
+
+ /* encoding is just like TS 04.08 */
+ len = gsm48_generate_mid_from_imsi(buf, imsi);
+ /* skip first two bytes (tag+length) so we can use msgb_tlv_put */
+ msgb_tlv_put(msg, SGSAP_IE_IMSI, len - 2, buf + 2);
+}
+
+/*! Encode IMSI from string representation and append to SGSaAP msg */
+static void msgb_sgsap_imsi_push(struct msgb *msg, const char *imsi)
+{
+ uint8_t buf[16];
+ uint8_t len;
+
+ /* encoding is just like TS 04.08 */
+ len = gsm48_generate_mid_from_imsi(buf, imsi);
+ /* skip first two bytes (tag+length) so we can use msgb_tlv_put */
+ msgb_tlv_push(msg, SGSAP_IE_IMSI, len - 2, buf + 2);
+}
+
+static void sgs_tx(struct sgs_connection *sgc, enum sgsap_msg_type msg_type, struct msgb *msg)
+{
+ uint8_t *cur = msgb_push(msg, 1);
+ *cur = msg_type;
+ msgb_sctp_ppid(msg) = 0;
+ if (!sgc) {
+ LOGSGC(sgc, LOGL_NOTICE, "Cannot transmit %s: connection dead. Discarding\n",
+ sgsap_msg_type_name(msg_type));
+ msgb_free(msg);
+ return;
+ }
+ osmo_stream_srv_send(sgc->srv, msg);
+}
+
+/*! Transmit simple SGsAP message (only IE: IMSI) */
+static void sgs_tx_simple(struct sgs_connection *sgc, enum sgsap_msg_type msgt, const char *imsi)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_imsi_put(msg, imsi);
+ sgs_tx(sgc, msgt, msg);
+}
+
+/* 8.3 */
+void sgs_tx_alert_req(struct sgs_connection *sgc, const char *imsi)
+{
+ sgs_tx_simple(sgc, SGSAP_MSGT_ALERT_REQ, imsi);
+}
+
+/* 8.4 */
+void sgs_tx_dl_ud(struct sgs_connection *sgc, const char *imsi, struct msgb *msg)
+{
+ msgb_sgsap_imsi_push(msg, imsi);
+ sgs_tx(sgc, SGSAP_MSGT_DL_UD, msg);
+}
+
+/* 8.5 */
+void sgs_tx_eps_det_ack(struct sgs_connection *sgc, const char *imsi)
+{
+ sgs_tx_simple(sgc, SGSAP_MSGT_EPS_DET_ACK, imsi);
+}
+
+/* 8.7 */
+void sgs_tx_imsi_det_ack(struct sgs_connection *sgc, const char *imsi)
+{
+ sgs_tx_simple(sgc, SGSAP_MSGT_IMSI_DET_ACK, imsi);
+}
+
+/*! 8.9 SGsAP-LOCATION-UPDATE-ACCEPT.
+ * \param[in] sgc SGs Connection.
+ * \param[in] imsi IMSI of the subscriber.
+ * \param[in] lai Location Area Identity (optional, may be NULL).
+ * \param[in] new_id value part of new Mobile Identity (optional, may be NULL).
+ * \param[in] new_id_len length of \a new_id in octets. */
+void sgs_tx_lu_ack(struct sgs_connection *sgc, const char *imsi,
+ const struct osmo_location_area_id *lai, const uint8_t *new_id, unsigned int new_id_len)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_imsi_put(msg, imsi);
+ if (lai) {
+ struct gsm48_loc_area_id lai_enc;
+ gsm48_generate_lai2(&lai_enc, lai);
+ msgb_tlv_put(msg, SGSAP_IE_LAI, 5, (uint8_t *) & lai_enc);
+ }
+ if (new_id && new_id_len)
+ msgb_tlv_put(msg, SGSAP_IE_MOBILE_ID, new_id_len, new_id);
+ sgs_tx(sgc, SGSAP_MSGT_LOC_UPD_ACK, msg);
+}
+
+/* 8.10 */
+void sgs_tx_lu_rej(struct sgs_connection *sgc, const char *imsi, uint8_t rej_cause,
+ const struct osmo_location_area_id *lai)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_imsi_put(msg, imsi);
+ msgb_tlv_put(msg, SGSAP_IE_REJECT_CAUSE, 1, &rej_cause);
+ if (lai) {
+ struct gsm48_loc_area_id lai_enc;
+ gsm48_generate_lai2(&lai_enc, lai);
+ msgb_tlv_put(msg, SGSAP_IE_LAI, 5, (uint8_t *) & lai_enc);
+ }
+ sgs_tx(sgc, SGSAP_MSGT_LOC_UPD_REJ, msg);
+}
+
+/* 8.12 */
+void sgs_tx_mm_info_req(struct sgs_connection *sgc, const char *imsi, const uint8_t *mm_info, uint8_t len)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_imsi_put(msg, imsi);
+ msgb_tlv_put(msg, SGSAP_IE_MM_INFO, len, mm_info);
+ sgs_tx(sgc, SGSAP_MSGT_MM_INFO_REQ, msg);
+}
+
+/* 8.14 */
+void sgs_tx_paging_req(struct sgs_connection *sgc, const char *imsi, const char *vlr_name, uint8_t serv_ind)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_imsi_put(msg, imsi);
+ msgb_sgsap_name_put(msg, SGSAP_IE_VLR_NAME, vlr_name);
+ msgb_tlv_put(msg, SGSAP_IE_SERVICE_INDICATOR, 1, &serv_ind);
+ sgs_tx(sgc, SGSAP_MSGT_PAGING_REQ, msg);
+}
+
+/* 8.15 */
+void sgs_tx_reset_ack_vlr(struct sgs_connection *sgc, const char *vlr_name)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_name_put(msg, SGSAP_IE_VLR_NAME, vlr_name);
+ sgs_tx(sgc, SGSAP_MSGT_RESET_ACK, msg);
+}
+
+/* 8.16 */
+void sgs_tx_reset_ind_vlr(struct sgs_connection *sgc, const char *vlr_name)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_name_put(msg, SGSAP_IE_VLR_NAME, vlr_name);
+ sgs_tx(sgc, SGSAP_MSGT_RESET_IND, msg);
+}
+
+/* 8.18 */
+void sgs_tx_status(struct sgs_connection *sgc, enum sgsap_sgs_cause cause, const char *imsi, const struct msgb *err_msg)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ uint8_t c8 = cause;
+
+ msgb_tlv_put(msg, SGSAP_IE_SGS_CAUSE, 1, &c8);
+ if (imsi)
+ msgb_sgsap_imsi_put(msg, imsi);
+ if (err_msg)
+ msgb_tlv_put(msg, SGSAP_IE_ERR_MSG, msgb_l2len(msg), msgb_l2(msg));
+ sgs_tx(sgc, SGSAP_MSGT_STATUS, msg);
+}
+
+/* same as above, but get IMSI from tlv_parsed */
+void sgs_tx_status_tp(struct sgs_connection *sgc, enum sgsap_sgs_cause cause,
+ const struct tlv_parsed *tp, const struct msgb *err_msg)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ uint8_t c8 = cause;
+
+ msgb_tlv_put(msg, SGSAP_IE_SGS_CAUSE, 1, &c8);
+ if (tp && TLVP_PRESENT(tp, SGSAP_IE_IMSI)) {
+ msgb_tlv_put(msg, SGSAP_IE_IMSI, TLVP_LEN(tp, SGSAP_IE_IMSI), TLVP_VAL(tp, SGSAP_IE_IMSI));
+ }
+ if (err_msg)
+ msgb_tlv_put(msg, SGSAP_IE_ERR_MSG, msgb_l2len(msg), msgb_l2(msg));
+ sgs_tx(sgc, SGSAP_MSGT_STATUS, msg);
+}
+
+/* 8.23 */
+void sgs_tx_release_req(struct sgs_connection *sgc, const char *imsi, const uint8_t *sgs_cause)
+{
+ struct msgb *msg = sgs_msgb_alloc();
+ msgb_sgsap_imsi_put(msg, imsi);
+ if (sgs_cause)
+ msgb_tlv_put(msg, SGSAP_IE_SGS_CAUSE, 1, sgs_cause);
+ sgs_tx(sgc, SGSAP_MSGT_RELEASE_REQ, msg);
+}
+
+/* 8.24 */
+void sgs_tx_service_abort_req(struct sgs_connection *sgc, const char *imsi)
+{
+ sgs_tx_simple(sgc, SGSAP_MSGT_SERVICE_ABORT_REQ, imsi);
+}
+
+/***********************************************************************
+ * SGs utility functions
+ ***********************************************************************/
+
+struct sgs_state *sgs_state_alloc(void *ctx)
+{
+ struct sgs_state *sgs = talloc_zero(ctx, struct sgs_state);
+
+ INIT_LLIST_HEAD(&sgs->mme_list);
+ INIT_LLIST_HEAD(&sgs->conn_list);
+
+ memcpy(sgs->cfg.timer, sgs_state_timer_defaults, sizeof(sgs->cfg.timer));
+ memcpy(sgs->cfg.counter, sgs_state_counter_defaults, sizeof(sgs->cfg.counter));
+
+ sgs->cfg.vlr_name = talloc_strdup(sgs, "mmec02.mmegi0002.mme.epc.mnc070.mcc901.3gppnetwork.org");
+
+ return sgs;
+}
+
+struct sgs_mme_ctx *sgs_mme_by_fqdn(struct sgs_state *sgs, const char *mme_fqdn)
+{
+ struct sgs_mme_ctx *mme;
+
+ llist_for_each_entry(mme, &sgs->mme_list, list) {
+ if (!strcasecmp(mme_fqdn, mme->fqdn))
+ return mme;
+ }
+ return NULL;
+}
+
+static struct sgs_mme_ctx *sgs_mme_alloc(struct sgs_state *sgs, const char *mme_fqdn, const struct osmo_gummei *gummei)
+{
+ struct sgs_mme_ctx *mme;
+
+ OSMO_ASSERT(sgs_mme_by_fqdn(sgs, mme_fqdn) == NULL);
+
+ mme = talloc_zero(sgs, struct sgs_mme_ctx);
+ if (!mme)
+ return NULL;
+ mme->sgs = sgs;
+ OSMO_STRLCPY_ARRAY(mme->fqdn, mme_fqdn);
+ mme->fi = osmo_fsm_inst_alloc(&sgs_vlr_reset_fsm, mme, mme, LOGL_INFO, osmo_gummei_name(gummei));
+ if (!mme->fi) {
+ talloc_free(mme);
+ return NULL;
+ }
+ llist_add_tail(&mme->list, &sgs->mme_list);
+ return mme;
+}
+
+/* Decode and verify MME name */
+static int decode_mme_name(char *mme_name, const struct tlv_parsed *tp)
+{
+ const uint8_t *mme_name_enc = TLVP_VAL_MINLEN(tp, SGSAP_IE_MME_NAME, 55);
+ struct osmo_gummei gummei;
+
+ if (!mme_name_enc)
+ return -EINVAL;
+
+ /* decode the MME name from DNS labels to string */
+ osmo_apn_to_str(mme_name, TLVP_VAL(tp, SGSAP_IE_MME_NAME), TLVP_LEN(tp, SGSAP_IE_MME_NAME));
+
+ /* try to parse the MME name into a GUMMEI as a test for the format */
+ if (osmo_parse_mme_domain(&gummei, mme_name) < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* A MME FQDN was received (e.g. RESET-IND/RESET-ACK/LU-REQ) */
+static int sgs_mme_fqdn_received(struct sgs_connection *sgc, const char *mme_fqdn)
+{
+ struct sgs_mme_ctx *mme;
+ struct osmo_gummei gummei;
+
+ /* caller must pass in a valid FQDN string syntax */
+ OSMO_ASSERT(osmo_parse_mme_domain(&gummei, mme_fqdn) == 0);
+
+ if (!sgc->mme) {
+ /* attempt to find MME with given name */
+ mme = sgs_mme_by_fqdn(sgc->sgs, mme_fqdn);
+ if (!mme)
+ mme = sgs_mme_alloc(sgc->sgs, mme_fqdn, &gummei);
+ OSMO_ASSERT(mme);
+
+ if (mme->conn) {
+ /* The MME context has another connection !?! */
+ LOGSGC(sgc, LOGL_ERROR, "Rx MME name %s, but that MME already has other "
+ "SCTP connection?!?\n", mme_fqdn);
+ return -1;
+ } else {
+ /* associate the two */
+ mme->conn = sgc;
+ sgc->mme = mme;
+ }
+ } else {
+ mme = sgc->mme;
+ if (strcasecmp(mme->fqdn, mme_fqdn) != 0) {
+ LOGMME(mme, LOGL_ERROR, "Rx MME name \"%s\" in packet from MME \"%s\" ?!?\n", mme_fqdn,
+ mme->fqdn);
+ return -2;
+ }
+ }
+ return 0;
+}
+
+/* Safely get the mme-name for an sgs-connection */
+static char *sgs_mme_fqdn_get(struct sgs_connection *sgc)
+{
+ if (!sgc)
+ return NULL;
+ if (!sgc->mme)
+ return NULL;
+ if (strlen(sgc->mme->fqdn) <= 0)
+ return NULL;
+ return sgc->mme->fqdn;
+}
+
+/* Find an sgs_mme_ctx for a given vlr subscriber, also check result */
+struct sgs_mme_ctx *sgs_mme_ctx_by_vsub(struct vlr_subscr *vsub, uint8_t msg_type)
+{
+ struct sgs_mme_ctx *mme;
+
+ /* Find SGS connection by MME name */
+ mme = sgs_mme_by_fqdn(g_sgs, vsub->sgs.mme_name);
+ if (!mme) {
+ LOGP(DSGS, LOGL_ERROR, "(sub %s) Tx %s can not find suitable MME!\n",
+ vlr_subscr_msisdn_or_name(vsub), sgsap_msg_type_name(msg_type));
+ return NULL;
+ }
+ if (!mme->conn) {
+ LOGP(DSGS, LOGL_ERROR,
+ "(sub %s) Tx %s suitable MME found, but no SGS connection present!\n",
+ vlr_subscr_msisdn_or_name(vsub), sgsap_msg_type_name(msg_type));
+ return NULL;
+ }
+ if (!mme->sgs) {
+ LOGP(DSGS, LOGL_ERROR,
+ "(sub %s) Tx %s suitable MME found, but no SGS state present!\n",
+ vlr_subscr_msisdn_or_name(vsub), sgsap_msg_type_name(msg_type));
+ return NULL;
+ }
+
+ return mme;
+}
+
+/***********************************************************************
+ * SGs incoming messages from the MME
+ ***********************************************************************/
+
+static void sgs_rx_status(struct sgs_connection *sgc, struct msgb *msg, struct tlv_parsed *tp)
+{
+ uint8_t cause;
+ const uint8_t *cause_ptr;
+ const uint8_t *err_msg;
+ char imsi[32];
+
+ cause_ptr = TLVP_VAL_MINLEN(tp, SGSAP_IE_SGS_CAUSE, 1);
+ if (cause_ptr)
+ cause = *cause_ptr;
+
+ if (TLVP_PRESENT(tp, SGSAP_IE_IMSI)) {
+ gsm48_mi_to_string(imsi, sizeof(imsi), TLVP_VAL(tp, SGSAP_IE_IMSI), TLVP_LEN(tp, SGSAP_IE_IMSI));
+ } else
+ OSMO_STRLCPY_ARRAY(imsi, "<none>");
+
+ if (TLVP_PRESENT(tp, SGSAP_IE_ERR_MSG))
+ err_msg = TLVP_VAL(tp, SGSAP_IE_ERR_MSG);
+ else
+ err_msg = NULL;
+
+ LOGSGC(sgc, LOGL_NOTICE, "Rx STATUS cause=%s, IMSI=%s, orig_msg=%s\n",
+ sgsap_sgs_cause_name(cause), imsi, err_msg ? osmo_hexdump(err_msg, TLVP_LEN(tp, SGSAP_IE_ERR_MSG)) : "");
+}
+
+static void sgs_rx_reset_ind(struct sgs_connection *sgc, struct msgb *msg, const struct tlv_parsed *tp)
+{
+/* Perform a reset of the SGS FSM of all subscribers that are present in the VLR */
+ vlr_sgs_reset(gsm_network->vlr);
+ sgs_tx_reset_ack_vlr(sgc, sgc->sgs->cfg.vlr_name);
+}
+
+static void sgs_rx_reset_ack(struct sgs_connection *sgc, struct msgb *msg, const struct tlv_parsed *tp)
+{
+ /* dispatch event to VLR reset FSM for this MME */
+ if (sgc->mme && sgc->mme->fi)
+ osmo_fsm_inst_dispatch(sgc->mme->fi, SGS_VLRR_E_RX_RESET_ACK, msg);
+}
+
+static void sgs_rx_log_upd_resp_cb(struct sgs_lu_response *response)
+{
+ struct vlr_subscr *vsub = response->vsub;
+ struct sgs_mme_ctx *mme;
+ uint8_t new_id[2 + GSM48_TMSI_LEN];
+ uint8_t *new_id_ptr = new_id;
+ unsigned int new_id_len = 0;
+ uint8_t resp_msg_type;
+
+ if (response->accepted)
+ resp_msg_type = SGSAP_MSGT_LOC_UPD_ACK;
+ else
+ resp_msg_type = SGSAP_MSGT_LOC_UPD_REJ;
+
+ mme = sgs_mme_ctx_by_vsub(vsub, resp_msg_type);
+ if (!mme)
+ return;
+
+ if (response->accepted) {
+ if (vsub->tmsi != GSM_RESERVED_TMSI) {
+ new_id_len = gsm48_generate_mid_from_tmsi(new_id, vsub->tmsi);
+ new_id_ptr = new_id + 2;
+ new_id_len -= 2;
+ }
+ sgs_tx_lu_ack(mme->conn, vsub->imsi, &vsub->sgs.lai, new_id_ptr, new_id_len);
+ vlr_sgs_loc_update_acc_sent(vsub);
+ } else {
+ sgs_tx_lu_rej(mme->conn, vsub->imsi, SGSAP_SGS_CAUSE_IMSI_UNKNOWN, &vsub->sgs.lai);
+ vlr_sgs_loc_update_rej_sent(vsub);
+ }
+}
+
+static void sgs_rx_loc_upd_req(struct sgs_connection *sgc, struct msgb *msg, const struct tlv_parsed *tp, char *imsi)
+{
+ const uint8_t *lu_type_ie;
+ enum vlr_lu_type type;
+ struct osmo_location_area_id new_lai;
+ const struct gsm48_loc_area_id *gsm48_lai;
+ int rc;
+ char *mme_name;
+
+ /* Determine MME-Name */
+ mme_name = sgs_mme_fqdn_get(sgc);
+ if (!mme_name) {
+ sgs_tx_lu_rej(sgc, imsi, SGSAP_SGS_CAUSE_IMSI_UNKNOWN, NULL);
+ return;
+ }
+
+ /* Parse LU-Type */
+ lu_type_ie = TLVP_VAL_MINLEN(tp, SGSAP_IE_EPS_LU_TYPE, 1);
+ if (!lu_type_ie) {
+ LOGSGC(sgc, LOGL_ERROR, "Rx SGsAP-LOCATION-UPDATE-REQ with no/invalid LU type!\n");
+ sgs_tx_status_tp(sgc, SGSAP_SGS_CAUSE_MISSING_MAND_IE, tp, msg);
+ return;
+ }
+ if (lu_type_ie[0] == 0x01)
+ type = VLR_LU_TYPE_IMSI_ATTACH;
+ else
+ type = VLR_LU_TYPE_REGULAR;
+
+ /* Parse LAI of the new location */
+ gsm48_lai = (struct gsm48_loc_area_id *)TLVP_VAL_MINLEN(tp, SGSAP_IE_LAI, 5);
+ if (!gsm48_lai) {
+ LOGSGC(sgc, LOGL_ERROR, "Rx SGsAP-LOCATION-UPDATE-REQ with no/invalid NEW LAI type!\n");
+ sgs_tx_status_tp(sgc, SGSAP_SGS_CAUSE_MISSING_MAND_IE, tp, msg);
+ return;
+ }
+ gsm48_decode_lai2(gsm48_lai, &new_lai);
+
+ /* Perform actual location update */
+ rc = vlr_sgs_loc_update(gsm_network->vlr, sgs_rx_log_upd_resp_cb, mme_name, type, imsi, &new_lai);
+ if (rc != 0)
+ sgs_tx_lu_rej(sgc, imsi, SGSAP_SGS_CAUSE_IMSI_UNKNOWN, NULL);
+}
+
+static void sgs_rx_imsi_det_ind(struct sgs_connection *sgc, struct msgb *msg, const struct tlv_parsed *tp, char *imsi)
+{
+ vlr_sgs_detach(gsm_network->vlr, imsi, false);
+ sgs_tx_imsi_det_ack(sgc, imsi);
+}
+
+static void sgs_rx_eps_det_ind(struct sgs_connection *sgc, struct msgb *msg, const struct tlv_parsed *tp, char *imsi)
+{
+ vlr_sgs_detach(gsm_network->vlr, imsi, true);
+ sgs_tx_eps_det_ack(sgc, imsi);
+}
+
+/* Page a subscriber via SGs-interface */
+int sgs_iface_tx_paging(struct vlr_subscr *vsub, enum sgsap_service_ind serv_ind)
+{
+ struct sgs_mme_ctx *mme;
+
+ mme = sgs_mme_ctx_by_vsub(vsub, SGSAP_MSGT_PAGING_REQ);
+ if (!mme)
+ return -EINVAL;
+
+ sgs_tx_paging_req(mme->conn, vsub->imsi, mme->sgs->cfg.vlr_name, serv_ind);
+ return 0;
+}
+
+int sgs_rx(struct sgs_connection *sgc, struct msgb *msg)
+{
+ uint8_t msg_type = msg->l2h[0];
+ struct tlv_parsed tp;
+ int rc;
+ char imsi[GSM48_MI_SIZE];
+ char mme_name[55 + 1];
+
+ /* When the receiving entity receives a message that is too short to contain a complete
+ * message type information element, the receiving entity shall ignore that message. */
+ if (msgb_l2len(msg) < 1) {
+ sgs_tx_status(sgc, SGSAP_SGS_CAUSE_MISSING_MAND_IE, NULL, msg);
+ msgb_free(msg);
+ return 0;
+ }
+
+ /* Parse TLV elements */
+ rc = tlv_parse(&tp, &sgsap_ie_tlvdef, msgb_l2(msg) + 1, msgb_l2len(msg) - 1, 0, 0);
+ if (rc < 0) {
+ LOGSGC(sgc, LOGL_NOTICE, "SGsAP Message %s parsing error\n", sgsap_msg_type_name(msg_type));
+ sgs_tx_status(sgc, SGSAP_SGS_CAUSE_SEMANT_INCORR_MSG, NULL, msg);
+ msgb_free(msg);
+ return 0;
+ }
+
+ /* Most of the messages contain an IMSI as mandatory IE, parse it right here */
+ if (!TLVP_PRESENT(&tp, SGSAP_IE_IMSI) &&
+ msg_type != SGSAP_MSGT_STATUS && msg_type != SGSAP_MSGT_RESET_IND && msg_type != SGSAP_MSGT_RESET_ACK) {
+ /* reject the message; all but the three above have mandatory IMSI */
+ LOGSGC(sgc, LOGL_NOTICE, "SGsAP Message %s without IMSI, dropping\n", sgsap_msg_type_name(msg_type));
+ sgs_tx_status(sgc, SGSAP_SGS_CAUSE_MISSING_MAND_IE, NULL, msg);
+ msgb_free(msg);
+ return 0;
+ }
+ memset(imsi, 0, sizeof(imsi));
+ if (TLVP_PRESENT(&tp, SGSAP_IE_IMSI)) {
+ gsm48_mi_to_string(imsi, sizeof(imsi), TLVP_VAL(&tp, SGSAP_IE_IMSI), TLVP_LEN(&tp, SGSAP_IE_IMSI));
+ /* FIXME: Is there a well defined minimum length (MCC=3 + MNC=2 + MSIN=1 => 6?) */
+ if (strlen(imsi) <= 6) {
+ LOGSGC(sgc, LOGL_NOTICE, "SGsAP Message %s with short IMSI, dropping\n",
+ sgsap_msg_type_name(msg_type));
+ sgs_tx_status(sgc, SGSAP_SGS_CAUSE_INVALID_MAND_IE, NULL, msg);
+ msgb_free(msg);
+ return 0;
+ }
+ }
+
+ /* Some messages contain an MME-NAME as mandatore IE, parse it right here. The
+ * MME-NAME is als immediately registered with the sgc, so it will be implicitly
+ * known to all functions that have access to the sgc context. */
+ if (!TLVP_PRESENT(&tp, SGSAP_IE_MME_NAME)
+ && (msg_type == SGSAP_MSGT_RESET_IND || msg_type == SGSAP_MSGT_RESET_ACK
+ || msg_type == SGSAP_MSGT_LOC_UPD_REQ || msg_type == SGSAP_MSGT_IMSI_DET_IND
+ || msg_type == SGSAP_MSGT_EPS_DET_IND)) {
+ LOGSGC(sgc, LOGL_NOTICE, "SGsAP Message %s without MME-Name, dropping\n",
+ sgsap_msg_type_name(msg_type));
+ sgs_tx_status(sgc, SGSAP_SGS_CAUSE_MISSING_MAND_IE, NULL, msg);
+ msgb_free(msg);
+ return 0;
+ }
+ memset(mme_name, 0, sizeof(mme_name));
+ if (TLVP_PRESENT(&tp, SGSAP_IE_MME_NAME)) {
+ if (decode_mme_name(mme_name, &tp) != 0) {
+ LOGSGC(sgc, LOGL_NOTICE, "SGsAP Message %s with invalid MME-Name, dropping\n",
+ sgsap_msg_type_name(msg_type));
+ sgs_tx_status_tp(sgc, SGSAP_SGS_CAUSE_INVALID_MAND_IE, &tp, msg);
+ msgb_free(msg);
+ return 0;
+ }
+ /* Regsister/check mme_name with sgc */
+ if (sgs_mme_fqdn_received(sgc, mme_name) < 0) {
+ sgs_tx_status_tp(sgc, SGSAP_SGS_CAUSE_MSG_INCOMP_STATE, &tp, msg);
+ LOGSGC(sgc, LOGL_NOTICE, "SGsAP Message %s with invalid MME-Name, dropping\n",
+ sgsap_msg_type_name(msg_type));
+ msgb_free(msg);
+ return 0;
+ }
+ }
+
+ /* dispatch msg to various handler functions. msgb ownership remains here! */
+ switch (msg_type) {
+ case SGSAP_MSGT_STATUS:
+ sgs_rx_status(sgc, msg, &tp);
+ break;
+ case SGSAP_MSGT_RESET_IND:
+ sgs_rx_reset_ind(sgc, msg, &tp);
+ break;
+ case SGSAP_MSGT_RESET_ACK:
+ sgs_rx_reset_ack(sgc, msg, &tp);
+ break;
+ case SGSAP_MSGT_LOC_UPD_REQ:
+ sgs_rx_loc_upd_req(sgc, msg, &tp, imsi);
+ break;
+ case SGSAP_MSGT_IMSI_DET_IND:
+ sgs_rx_imsi_det_ind(sgc, msg, &tp, imsi);
+ break;
+ case SGSAP_MSGT_EPS_DET_IND:
+ sgs_rx_eps_det_ind(sgc, msg, &tp, imsi);
+ break;
+ case SGSAP_MSGT_TMSI_REALL_CMPL:
+ case SGSAP_MSGT_ALERT_ACK:
+ case SGSAP_MSGT_ALERT_REJ:
+ case SGSAP_MSGT_PAGING_REJ:
+ case SGSAP_MSGT_UE_ACT_IND:
+ case SGSAP_MSGT_UE_UNREACHABLE:
+ case SGSAP_MSGT_UL_UD:
+ case SGSAP_MSGT_SERVICE_REQ:
+ case SGSAP_MSGT_MO_CSFB_IND:
+ LOGSGC(sgc, LOGL_NOTICE, "Rx unmplemented SGsAP %s: %s\n",
+ sgsap_msg_type_name(msg_type), msgb_hexdump(msg));
+ sgs_tx_status_tp(sgc, SGSAP_SGS_CAUSE_MSG_UNKNOWN, &tp, msg);
+ break;
+ default:
+ LOGSGC(sgc, LOGL_NOTICE, "Rx unknown SGsAP message type 0x%02x: %s\n", msg_type, msgb_hexdump(msg));
+ sgs_tx_status_tp(sgc, SGSAP_SGS_CAUSE_MSG_UNKNOWN, &tp, msg);
+ break;
+ }
+ msgb_free(msg);
+ return 0;
+}
+
+/***********************************************************************
+ * SGs connection "VLR Reset Procedure" FSM
+ ***********************************************************************/
+
+static const struct value_string sgs_vlr_reset_fsm_event_names[] = {
+ {SGS_VLRR_E_START_RESET, "START-RESET"},
+ {SGS_VLRR_E_RX_RESET_ACK, "RX-RESET-ACK"},
+ {0, NULL}
+};
+
+static void sgs_vlr_reset_fsm_null(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ switch (event) {
+ case SGS_VLRR_E_RX_RESET_ACK:
+ break;
+ default:
+ OSMO_ASSERT(0);
+ break;
+ }
+}
+
+static void sgs_vlr_reset_fsm_wait_ack(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ switch (event) {
+ case SGS_VLRR_E_RX_RESET_ACK:
+ osmo_fsm_inst_state_chg(fi, SGS_VLRR_ST_COMPLETE, 0, 0);
+ break;
+ default:
+ OSMO_ASSERT(0);
+ break;
+ }
+}
+
+static void sgs_vlr_reset_fsm_complete(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ switch (event) {
+ case SGS_VLRR_E_RX_RESET_ACK:
+ break;
+ default:
+ OSMO_ASSERT(0);
+ break;
+ }
+}
+
+static void sgs_vlr_reset_fsm_allstate(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct sgs_mme_ctx *mme = (struct sgs_mme_ctx *)fi->priv;
+ struct sgs_connection *sgc = mme->conn;
+ struct sgs_state *sgs = mme->sgs;
+
+ switch (event) {
+ case SGS_VLRR_E_START_RESET:
+ osmo_fsm_inst_state_chg(fi, SGS_VLRR_ST_NULL, 0, 0);
+ mme->ns11_remaining = sgs->cfg.counter[SGS_STATE_NS11];
+ /* send a reset message and enter WAIT_ACK state */
+ sgs_tx_reset_ind_vlr(sgc, sgs->cfg.vlr_name);
+ osmo_fsm_inst_state_chg(fi, SGS_VLRR_ST_WAIT_ACK, sgs->cfg.timer[SGS_STATE_TS11], 11);
+ break;
+ default:
+ OSMO_ASSERT(0);
+ break;
+ }
+}
+
+static int sgs_vlr_reset_fsm_timer_cb(struct osmo_fsm_inst *fi)
+{
+ struct sgs_mme_ctx *mme = (struct sgs_mme_ctx *)fi->priv;
+ struct sgs_connection *sgc = mme->conn;
+ struct sgs_state *sgs = mme->sgs;
+
+ switch (fi->T) {
+ case 11:
+ if (mme->ns11_remaining >= 1) {
+ sgs_tx_reset_ind_vlr(sgc, sgc->sgs->cfg.vlr_name);
+ osmo_fsm_inst_state_chg(fi, SGS_VLRR_ST_WAIT_ACK, sgs->cfg.timer[SGS_STATE_TS11], 11);
+ mme->ns11_remaining--;
+ } else {
+ LOGMME(mme, LOGL_ERROR, "Ts11 expired more than Ns11 times, giving up\n");
+ osmo_fsm_inst_state_chg(fi, SGS_VLRR_ST_NULL, 0, 0);
+ }
+ break;
+ default:
+ OSMO_ASSERT(0);
+ break;
+ }
+ return 0;
+}
+
+static const struct osmo_fsm_state sgs_vlr_reset_fsm_states[] = {
+ [SGS_VLRR_ST_NULL] = {
+ /* We haven't even tried yet to send a RESET */
+ .name = "NULL",
+ .action = sgs_vlr_reset_fsm_null,
+ .in_event_mask = S(SGS_VLRR_E_RX_RESET_ACK),
+ .out_state_mask = S(SGS_VLRR_ST_NULL) | S(SGS_VLRR_ST_WAIT_ACK),
+ },
+ [SGS_VLRR_ST_WAIT_ACK] = {
+ /* We're waiting for a SGsAP_RESET_ACK */
+ .name = "WAIT-ACK",
+ .action = sgs_vlr_reset_fsm_wait_ack,
+ .in_event_mask = S(SGS_VLRR_E_RX_RESET_ACK),
+ .out_state_mask = S(SGS_VLRR_ST_NULL) |
+ S(SGS_VLRR_ST_COMPLETE) | S(SGS_VLRR_ST_WAIT_ACK),
+ },
+ [SGS_VLRR_ST_COMPLETE] = {
+ /* Reset procedure to this MME has been completed */
+ .name = "COMPLETE",
+ .action = sgs_vlr_reset_fsm_complete,
+ .in_event_mask = S(SGS_VLRR_E_RX_RESET_ACK),
+ .out_state_mask = S(SGS_VLRR_ST_NULL) | S(SGS_VLRR_ST_COMPLETE),
+ },
+};
+
+static struct osmo_fsm sgs_vlr_reset_fsm = {
+ .name = "SGs-VLR-RESET",
+ .states = sgs_vlr_reset_fsm_states,
+ .allstate_event_mask = S(SGS_VLRR_E_START_RESET),
+ .allstate_action = sgs_vlr_reset_fsm_allstate,
+ .timer_cb = sgs_vlr_reset_fsm_timer_cb,
+ .log_subsys = DSGS,
+ .event_names = sgs_vlr_reset_fsm_event_names,
+};
+
+/***********************************************************************
+ * SGs connection server
+ ***********************************************************************/
+
+#include <netinet/sctp.h>
+
+static int sgs_conn_readable_cb(struct osmo_stream_srv *conn)
+{
+ struct osmo_fd *ofd = osmo_stream_srv_get_ofd(conn);
+ struct sgs_connection *sgc = osmo_stream_srv_get_data(conn);
+ struct msgb *msg = sgs_msgb_alloc();
+ struct sctp_sndrcvinfo sinfo;
+ int flags = 0;
+ int rc;
+
+ /* we cannot use osmo_stream_srv_recv() here, as we might get some out-of-band info from
+ * SCTP. FIXME: add something like osmo_stream_srv_recv_sctp() to libosmo-netif and use
+ * it here as well as in libosmo-sigtran */
+ rc = sctp_recvmsg(ofd->fd, msgb_data(msg), msgb_tailroom(msg), NULL, NULL, &sinfo, &flags);
+ if (rc < 0) {
+ osmo_stream_srv_destroy(conn);
+ goto out;
+ } else if (rc == 0) {
+ osmo_stream_srv_destroy(conn);
+ goto out;
+ } else {
+ msgb_put(msg, rc);
+ }
+
+ if (flags & MSG_NOTIFICATION) {
+ union sctp_notification *notif = (union sctp_notification *)msgb_data(msg);
+
+ switch (notif->sn_header.sn_type) {
+ case SCTP_SHUTDOWN_EVENT:
+ osmo_stream_srv_destroy(conn);
+ break;
+ case SCTP_ASSOC_CHANGE:
+ /* do we have to notify the SGs code about this? */
+ break;
+ default:
+ break;
+ }
+ rc = 0;
+ goto out;
+ }
+
+ /* set l2 header, as that's what we use in SGs code */
+ msg->l2h = msgb_data(msg);
+
+ if (msgb_sctp_ppid(msg) != 0) {
+ LOGSGC(sgc, LOGL_NOTICE, "Ignoring SCTP PPID %ld (spec violation)\n", msgb_sctp_ppid(msg));
+ msgb_free(msg);
+ return 0;
+ }
+ /* handle message */
+ sgs_rx(sgc, msg);
+
+ return 0;
+out:
+ msgb_free(msg);
+ return rc;
+}
+
+static int sgs_conn_closed_cb(struct osmo_stream_srv *conn)
+{
+ struct sgs_connection *sgc = osmo_stream_srv_get_data(conn);
+
+ LOGSGC(sgc, LOGL_NOTICE, "Connection lost\n");
+ if (sgc->mme) {
+ /* unlink ourselves from the MME context */
+ if (sgc->mme->conn == sgc)
+ sgc->mme->conn = NULL;
+ }
+ llist_del(&sgc->list);
+ return 0;
+}
+
+/* call-back when new connection is accept() ed on SGs */
+static int sgs_accept_cb(struct osmo_stream_srv_link *link, int fd)
+{
+ struct sgs_state *sgs = osmo_stream_srv_link_get_data(link);
+ struct sgs_connection *sgc = talloc_zero(link, struct sgs_connection);
+ OSMO_ASSERT(sgc);
+ sgc->sgs = sgs;
+ sgc->sockname = osmo_sock_get_name(sgc, fd);
+ sgc->srv = osmo_stream_srv_create(sgc, link, fd, sgs_conn_readable_cb, sgs_conn_closed_cb, sgc);
+ if (!sgc->srv) {
+ talloc_free(sgc);
+ return -1;
+ }
+ LOGSGC(sgc, LOGL_INFO, "Accepted new SGs connection\n");
+ llist_add_tail(&sgc->list, &sgs->conn_list);
+
+ return 0;
+}
+
+/* global init function */
+struct sgs_state *sgs_init(void *ctx, struct gsm_network *network)
+{
+ struct sgs_state *sgs;
+ struct osmo_stream_srv_link *link;
+
+ gsm_network = network;
+
+ sgs = sgs_state_alloc(ctx);
+ OSMO_ASSERT(sgs);
+
+ /* We currently only support one SGs instance */
+ OSMO_ASSERT(!g_sgs);
+ g_sgs = sgs;
+
+ osmo_fsm_register(&sgs_vlr_reset_fsm);
+
+ sgs->srv_link = link = osmo_stream_srv_link_create(ctx);
+ OSMO_ASSERT(sgs->srv_link);
+ osmo_stream_srv_link_set_nodelay(link, true);
+ //osmo_stream_srv_link_set_addr(link, local_ip);
+ osmo_stream_srv_link_set_port(link, 29118);
+ osmo_stream_srv_link_set_proto(link, IPPROTO_SCTP);
+ osmo_stream_srv_link_set_data(link, sgs);
+ osmo_stream_srv_link_set_accept_cb(link, sgs_accept_cb);
+ sgs_open(sgs);
+
+ return sgs;
+}
+
+int sgs_open(struct sgs_state *sgs)
+{
+ int rc;
+ struct osmo_fd *ofd = osmo_stream_srv_link_get_ofd(sgs->srv_link);
+ char *name;
+
+ rc = osmo_stream_srv_link_open(sgs->srv_link);
+ if (rc < 0) {
+ LOGP(DSGS, LOGL_ERROR, "SGs socket cannot be opened: %s\n", strerror(errno));
+ return rc;
+ }
+ name = osmo_sock_get_name(sgs, ofd->fd);
+ LOGP(DSGS, LOGL_NOTICE, "SGs socket bound to %s\n", name);
+ talloc_free(name);
+ return 0;
+}
diff --git a/src/libmsc/sgs_vty.c b/src/libmsc/sgs_vty.c
new file mode 100644
index 0000000..6a0b1ad
--- /dev/null
+++ b/src/libmsc/sgs_vty.c
@@ -0,0 +1,176 @@
+/* SGs Interface according to 3GPP TS 23.272 + TS 29.118 */
+
+/* (C 2018 by Harald Welte <laforge at gnumonks.org>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <string.h>
+#include <errno.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/msc/vty.h>
+#include <osmocom/netif/stream.h>
+#include <osmocom/msc/sgs_iface.h>
+#include <osmocom/msc/debug.h>
+#include <osmocom/gsm/tlv.h>
+
+struct cmd_node cfg_sgs_node = {
+ CFG_SGS_NODE,
+ "%s(config-sgs)# ",
+ 1
+};
+
+DEFUN(cfg_sgs, cfg_sgs_cmd, "sgs", "Configure the SGs interface\n")
+{
+ vty->index = g_sgs;
+ vty->node = CFG_SGS_NODE;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_sgs_local_ip, cfg_sgs_local_ip_cmd,
+ "local-ip A.B.C.D", "Set the Local IP Address of the SGs interface\n" "Local IP Address of the SGs interface\n")
+{
+ struct sgs_state *sgs = vty->index;
+ int rc;
+
+ osmo_stream_srv_link_set_addr(sgs->srv_link, argv[0]);
+
+ rc = sgs_open(sgs);
+ if (rc < 0) {
+ vty_out(vty, "%% SGs socket cannot be opened: %s%s", strerror(errno), VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_sgs_local_port, cfg_sgs_local_port_cmd,
+ "local-port <0-65535>", "Set the local SCTP port of the SGs interface\n" "Local SCTP port of the SGs interface\n")
+{
+ struct sgs_state *sgs = vty->index;
+ int rc;
+
+ osmo_stream_srv_link_set_port(sgs->srv_link, atoi(argv[0]));
+
+ rc = sgs_open(sgs);
+ if (rc < 0) {
+ vty_out(vty, "%% SGs socket cannot be opened: %s%s", strerror(errno), VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_sgs_vlr_name, cfg_sgs_vlr_name_cmd,
+ "vlr-name FQDN", "Set the SGs VLR Name as per TS 29.118 9.4.22\n" "Fully-Qualified Domain Name of this VLR\n")
+{
+ struct sgs_state *sgs = vty->index;
+ osmo_talloc_replace_string(sgs, &sgs->cfg.vlr_name, argv[0]);
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_sgs_timer, cfg_sgs_timer_cmd,
+ "timer (Ts5|TS6-2|Ts7|Ts11|Ts14|Ts15) <1-120>",
+ "Configure SGs Timer\n"
+ "Paging procedure guard timer\n"
+ "TMSI reallocation guard timer\n"
+ "Non-EPS alert procedure guard timer\n"
+ "VLR reset guard timer\n"
+ "UE fallback prcoedure timer\n" "MO UE fallback procedure guard timer\n" "Time in seconds\n")
+{
+ struct sgs_state *sgs = vty->index;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(sgs->cfg.timer); i++) {
+ if (!strcmp(argv[0], sgs_state_timer_names[i])) {
+ sgs->cfg.timer[i] = atoi(argv[1]);
+ return CMD_SUCCESS;
+ }
+ }
+
+ return CMD_WARNING;
+}
+
+DEFUN(cfg_sgs_counter, cfg_sgs_counter_cmd,
+ "counter (Ns7|Ns11) <0-255>",
+ "Configure SGs Counter\n" "Non-EPS alert request retry counter\n" "VLR reset retry counter\n" "Counter value\n")
+{
+ struct sgs_state *sgs = vty->index;
+ unsigned int i = 0;
+
+ for (i = 0; i < ARRAY_SIZE(sgs->cfg.counter); i++) {
+ if (!strcmp(argv[0], sgs_state_counter_names[i])) {
+ sgs->cfg.counter[i] = atoi(argv[1]);
+ return CMD_SUCCESS;
+ }
+ }
+
+ return CMD_WARNING;
+}
+
+DEFUN(show_sgs_conn, show_sgs_conn_cmd, "show sgs-connections", SHOW_STR "Show SGs interface connections / MMEs\n")
+{
+ struct sgs_connection *sgc;
+
+ llist_for_each_entry(sgc, &g_sgs->conn_list, list) {
+ vty_out(vty, " %s %s%s", sgc->sockname, sgc->mme ? sgc->mme->fqdn : "", VTY_NEWLINE);
+ }
+ return CMD_SUCCESS;
+}
+
+static int config_write_sgs(struct vty *vty)
+{
+ struct sgs_state *sgs = g_sgs;
+ unsigned int i;
+
+ vty_out(vty, "sgs%s", VTY_NEWLINE);
+ if (sgs->cfg.local_port != 29118)
+ vty_out(vty, " local-port %u%s", sgs->cfg.local_port, VTY_NEWLINE);
+ if (sgs->cfg.local_addr)
+ vty_out(vty, " local-ip %s%s", sgs->cfg.local_addr, VTY_NEWLINE);
+ if (sgs->cfg.vlr_name)
+ vty_out(vty, " vlr-name %s%s", sgs->cfg.vlr_name, VTY_NEWLINE);
+
+ for (i = 0; i < ARRAY_SIZE(sgs->cfg.timer); i++) {
+ if (sgs->cfg.timer[i] == sgs_state_timer_defaults[i])
+ continue;
+ vty_out(vty, " timer %s %u%s", sgs_state_timer_names[i], sgs->cfg.timer[i], VTY_NEWLINE);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(sgs->cfg.counter); i++) {
+ if (sgs->cfg.timer[i] == sgs_state_counter_defaults[i])
+ continue;
+ vty_out(vty, " counter %s %u%s", sgs_state_counter_names[i], sgs->cfg.counter[i], VTY_NEWLINE);
+ }
+
+ return 1;
+}
+
+void sgs_vty_init(void)
+{
+ /* configuration commands / nodes */
+ install_element(CONFIG_NODE, &cfg_sgs_cmd);
+ install_node(&cfg_sgs_node, config_write_sgs);
+ install_element(CFG_SGS_NODE, &cfg_sgs_local_ip_cmd);
+ install_element(CFG_SGS_NODE, &cfg_sgs_local_port_cmd);
+ install_element(CFG_SGS_NODE, &cfg_sgs_timer_cmd);
+ install_element(CFG_SGS_NODE, &cfg_sgs_counter_cmd);
+ install_element(CFG_SGS_NODE, &cfg_sgs_vlr_name_cmd);
+
+ install_element_ve(&show_sgs_conn_cmd);
+}
diff --git a/src/libmsc/silent_call.c b/src/libmsc/silent_call.c
index 9888894..a173a0f 100644
--- a/src/libmsc/silent_call.c
+++ b/src/libmsc/silent_call.c
@@ -129,7 +129,8 @@
* This doesn't apply to the situation after MSCSPLIT with an
* A-interface. */
req = subscr_request_conn(vsub, paging_cb_silent, data,
- "establish silent call");
+ "establish silent call",
+ SGSAP_SERV_IND_CS_CALL);
if (!req)
return -ENODEV;
return 0;
diff --git a/src/libvlr/Makefile.am b/src/libvlr/Makefile.am
index dcae1c7..790943c 100644
--- a/src/libvlr/Makefile.am
+++ b/src/libvlr/Makefile.am
@@ -16,6 +16,7 @@
vlr_auth_fsm.h \
vlr_core.h \
vlr_lu_fsm.h \
+ vlr_sgs_fsm.h \
$(NULL)
noinst_LIBRARIES = libvlr.a
@@ -25,4 +26,6 @@
vlr_access_req_fsm.c \
vlr_auth_fsm.c \
vlr_lu_fsm.c \
+ vlr_sgs.c \
+ vlr_sgs_fsm.c \
$(NULL)
diff --git a/src/libvlr/vlr.c b/src/libvlr/vlr.c
index f7572f2..920c332 100644
--- a/src/libvlr/vlr.c
+++ b/src/libvlr/vlr.c
@@ -30,6 +30,7 @@
#include <osmocom/msc/gsm_subscriber.h>
#include <osmocom/gsupclient/gsup_client.h>
#include <osmocom/msc/vlr.h>
+#include <osmocom/msc/vlr_sgs.h>
#include <osmocom/msc/debug.h>
#include <netinet/in.h>
@@ -41,6 +42,7 @@
#include "vlr_auth_fsm.h"
#include "vlr_lu_fsm.h"
#include "vlr_access_req_fsm.h"
+#include "vlr_sgs_fsm.h"
#define SGSN_SUBSCR_MAX_RETRIES 3
#define SGSN_SUBSCR_RETRY_INTERVAL 10
@@ -247,6 +249,11 @@
INIT_LLIST_HEAD(&vsub->cs.requests);
INIT_LLIST_HEAD(&vsub->ps.pdp_list);
+ /* Create an SGs FSM, which is needed to control CSFB,
+ * in cases where CSFB/SGs is not in use, this FSM will
+ * just do nothing. (see also: sgs_iface.c) */
+ vlr_sgs_fsm_create(vsub);
+
llist_add_tail(&vsub->list, &vlr->subscribers);
return vsub;
}
@@ -292,6 +299,10 @@
{
llist_del(&vsub->list);
DEBUGP(DREF, "freeing VLR subscr %s\n", vlr_subscr_name(vsub));
+
+ /* Remove SGs FSM (see also: sgs_iface.c) */
+ vlr_sgs_fsm_remove(vsub);
+
talloc_free(vsub);
}
@@ -816,7 +827,13 @@
static int vlr_subscr_handle_lu_res(struct vlr_subscr *vsub,
const struct osmo_gsup_message *gsup)
{
- if (!vsub->lu_fsm) {
+ struct sgs_lu_response sgs_lu_response;
+ bool sgs_lu_in_progress = false;
+
+ if (vsub->sgs_fsm->state == SGS_UE_ST_LA_UPD_PRES)
+ sgs_lu_in_progress = true;
+
+ if (!vsub->lu_fsm && !sgs_lu_in_progress) {
LOGVSUBP(LOGL_ERROR, vsub, "Rx GSUP LU Result "
"without LU in progress\n");
return -ENODEV;
@@ -827,7 +844,12 @@
* nested INSERT SUBSCRIBER DATA transaction */
vlr_subscr_gsup_insert_data(vsub, gsup);
- osmo_fsm_inst_dispatch(vsub->lu_fsm, VLR_ULA_E_HLR_LU_RES, NULL);
+ if (sgs_lu_in_progress) {
+ sgs_lu_response.accepted = true;
+ sgs_lu_response.vsub = vsub;
+ vsub->sgs.response_cb(&sgs_lu_response);
+ } else
+ osmo_fsm_inst_dispatch(vsub->lu_fsm, VLR_ULA_E_HLR_LU_RES, NULL);
return 0;
}
@@ -836,7 +858,13 @@
static int vlr_subscr_handle_lu_err(struct vlr_subscr *vsub,
const struct osmo_gsup_message *gsup)
{
- if (!vsub->lu_fsm) {
+ struct sgs_lu_response sgs_lu_response;
+ bool sgs_lu_in_progress = false;
+
+ if (vsub->sgs_fsm->state == SGS_UE_ST_LA_UPD_PRES)
+ sgs_lu_in_progress = true;
+
+ if (!vsub->lu_fsm && !sgs_lu_in_progress) {
LOGVSUBP(LOGL_ERROR, vsub, "Rx GSUP LU Error "
"without LU in progress\n");
return -ENODEV;
@@ -845,9 +873,13 @@
LOGVSUBP(LOGL_DEBUG, vsub, "UpdateLocation failed; gmm_cause: %s\n",
get_value_string(gsm48_gmm_cause_names, gsup->cause));
- osmo_fsm_inst_dispatch(vsub->lu_fsm, VLR_ULA_E_HLR_LU_RES,
- (void *)&gsup->cause);
-
+ if (sgs_lu_in_progress) {
+ sgs_lu_response.accepted = false;
+ sgs_lu_response.vsub = vsub;
+ vsub->sgs.response_cb(&sgs_lu_response);
+ } else
+ osmo_fsm_inst_dispatch(vsub->lu_fsm, VLR_ULA_E_HLR_LU_RES,
+ (void *)&gsup->cause);
return 0;
}
@@ -1157,6 +1189,9 @@
vsub->imsi_detached_flag = true;
vsub->expire_lu = VLR_SUBSCRIBER_NO_EXPIRATION;
+ /* Inform the UE-SGs FSM that the subscriber has been detached */
+ osmo_fsm_inst_dispatch(vsub->sgs_fsm, SGS_UE_E_RX_DETACH_IND_FROM_UE, NULL);
+
/* balancing the get from vlr_lu_compl_fsm_success() */
vlr_subscr_expire(vsub);
@@ -1206,6 +1241,8 @@
vlr_lu_fsm_init();
/* vlr_access_request_fsm.c */
vlr_parq_fsm_init();
+ /* vlr_sgs_fsm.c */
+ vlr_sgs_fsm_init();
return vlr;
}
diff --git a/src/libvlr/vlr_lu_fsm.c b/src/libvlr/vlr_lu_fsm.c
index 717db42..10cb656 100644
--- a/src/libvlr/vlr_lu_fsm.c
+++ b/src/libvlr/vlr_lu_fsm.c
@@ -27,6 +27,7 @@
#include "vlr_core.h"
#include "vlr_auth_fsm.h"
#include "vlr_lu_fsm.h"
+#include "vlr_sgs_fsm.h"
#define S(x) (1 << (x))
@@ -1045,6 +1046,11 @@
OSMO_ASSERT(lfp->vsub);
+ /* At this point we know for which subscriber the location update is,
+ * we now must inform SGs-UE FSM that we received a location update
+ * via A, IU or Gs interface. */
+ osmo_fsm_inst_dispatch(lfp->vsub->sgs_fsm, SGS_UE_E_RX_LU_FROM_A_IU_GS, NULL);
+
/* See 3GPP TS 23.012, procedure Retrieve_IMEISV_If_Required */
if ((!vlr->cfg.retrieve_imeisv_early)
|| (lfp->type == VLR_LU_TYPE_PERIODIC && lfp->vsub->imeisv[0])) {
diff --git a/src/libvlr/vlr_sgs.c b/src/libvlr/vlr_sgs.c
new file mode 100644
index 0000000..d8c3a36
--- /dev/null
+++ b/src/libvlr/vlr_sgs.c
@@ -0,0 +1,124 @@
+/* (C) 2018 by sysmocom s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * Author: Harald Welte, Philipp Maier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/msc/debug.h>
+#include <osmocom/msc/vlr.h>
+#include <osmocom/msc/vlr_sgs.h>
+#include "vlr_sgs_fsm.h"
+
+/* Reset all SGs-Associations back to zero.
+ * \param[in] vlr VLR instace. */
+void vlr_sgs_reset(struct vlr_instance *vlr)
+{
+ struct vlr_subscr *vsub;
+
+ OSMO_ASSERT(vlr);
+
+ LOGP(DVLR, LOGL_INFO, "dropping all SGs associations.\n");
+
+ llist_for_each_entry(vsub, &vlr->subscribers, list) {
+ osmo_fsm_inst_dispatch(vsub->sgs_fsm, SGS_UE_E_RX_RESET_FROM_MME, NULL);
+ }
+}
+
+/*! Perform an SGs location update.
+ * \param[in] vlr VLR instace.
+ * \param[in] response_cb calback function that is called when LU is done.
+ * \param[in] mme_name fqdn of the requesting MME (mme-name).
+ * \param[in] type location update type (normal or IMSI attach).
+ * \param[in] imsi mobile identity (IMSI).
+ * \param[in] new_lai identifier of the new location area.
+ * \returns 0 in case of success, -EINVAL in case of error. */
+int vlr_sgs_loc_update(struct vlr_instance *vlr,
+ vlr_sgs_lu_response_cb_t response_cb,
+ char *mme_name, enum vlr_lu_type type, const char *imsi, struct osmo_location_area_id *new_lai)
+{
+ struct vlr_subscr *vsub = NULL;
+ vsub = vlr_subscr_find_or_create_by_imsi(vlr, imsi, NULL);
+
+ OSMO_ASSERT(response_cb);
+
+ if (!vsub) {
+ LOGP(DSGS, LOGL_ERROR, "VLR subscriber allocation failed\n");
+ return -EINVAL;
+ }
+
+ vsub->sgs.response_cb = response_cb;
+ vlr_subscr_set_imsi(vsub, imsi);
+ osmo_strlcpy(vsub->sgs.mme_name, mme_name, sizeof(vsub->sgs.mme_name));
+
+ osmo_fsm_inst_dispatch(vsub->sgs_fsm, SGS_UE_E_RX_LU_FROM_MME, NULL);
+
+ /* FIXME: put type parameter to the right place! */
+ printf("==============================TYPE %x\n", type);
+
+ /* FIXME: see note for struct member in vlr.h */
+ memcpy(&vsub->sgs.lai, new_lai, sizeof(vsub->sgs.lai));
+
+ return 0;
+}
+
+/*! Notify that the SGs Location Update accept message has been sent to MME.
+ * \param[in] vlr_subscr VLR subscriber. */
+void vlr_sgs_loc_update_acc_sent(struct vlr_subscr *vlr_subscr)
+{
+ osmo_fsm_inst_dispatch(vlr_subscr->sgs_fsm, SGS_UE_E_TX_LU_ACCEPT, NULL);
+}
+
+/*! Notify that the SGs Location Update reject message has been sent to MME.
+ * \param[in] vlr_subscr VLR subscriber. */
+void vlr_sgs_loc_update_rej_sent(struct vlr_subscr *vlr_subscr)
+{
+ osmo_fsm_inst_dispatch(vlr_subscr->sgs_fsm, SGS_UE_E_TX_LU_REJECT, NULL);
+}
+
+/*! Perform an SGs ISMI/EPS detach */
+void vlr_sgs_detach(struct vlr_instance *vlr, const char *imsi, bool eps)
+{
+ struct vlr_subscr *vsub;
+ vsub = vlr_subscr_find_by_imsi(vlr, imsi);
+ if (!vsub) {
+ /* Subscriber never existed or got already (implicitly) detached. */
+ return;
+ }
+
+ /* FIXME: What about the eps parameter? How is EPS Detach different
+ * from IMSI Detach? */
+
+ vsub->imsi_detached_flag = true;
+ vsub->expire_lu = VLR_SUBSCRIBER_NO_EXPIRATION;
+
+ /* Inform the UE-SGs FSM that the subscriber has been detached */
+ osmo_fsm_inst_dispatch(vsub->sgs_fsm, SGS_UE_E_RX_DETACH_IND_FROM_MME, NULL);
+
+ /* balancing the get from vlr_lu_compl_fsm_success() */
+ vlr_subscr_expire(vsub);
+}
+
+/*! Check if the has an SGs association.
+ * \returns true if a an SGs association is present, otherwise false */
+bool vlr_sgs_assoc(struct vlr_subscr * vlr_subscr)
+{
+ if (vlr_subscr->sgs_fsm->state == SGS_UE_ST_ASSOCIATED)
+ return true;
+ return false;
+}
diff --git a/src/libvlr/vlr_sgs_fsm.c b/src/libvlr/vlr_sgs_fsm.c
new file mode 100644
index 0000000..ebfc1ba
--- /dev/null
+++ b/src/libvlr/vlr_sgs_fsm.c
@@ -0,0 +1,236 @@
+/* (C) 2018 by sysmocom s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * Author: Harald Welte, Philipp Maier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <osmocom/core/utils.h>
+#include <osmocom/core/fsm.h>
+#include <osmocom/msc/debug.h>
+#include <osmocom/msc/vlr.h>
+#include <osmocom/msc/vlr_sgs.h>
+
+#include "vlr_sgs_fsm.h"
+#include "vlr_core.h"
+
+#define S(x) (1 << (x))
+
+static const struct value_string sgs_ue_fsm_event_names[] = {
+ {SGS_UE_E_VLR_FAILURE, "VLR_FAILURE"},
+ {SGS_UE_E_RX_RESET_FROM_MME, "RX_RESET_FROM_MME"},
+ {SGS_UE_E_RX_DETACH_IND_FROM_MME, "RX_DETACH_IND_FROM_MME"},
+ {SGS_UE_E_RX_DETACH_IND_FROM_UE, "RX_DETACH_IND_FROM_UE"}, /* vlr.c */
+ {SGS_UE_E_RX_LU_FROM_A_IU_GS, "RX_LU_FROM_A_Iu_Gs"}, /* vlr_lu_fsm.c */
+ {SGS_UE_E_RX_PAGING_FAILURE, "RX_PAGING_FAILURE"},
+ {SGS_UE_E_RX_ALERT_FAILURE, "RX_ALERT_FAILURE"},
+ {SGS_UE_E_RX_LU_FROM_MME, "RX_LU_FROM_MME"},
+ {SGS_UE_E_TX_LU_REJECT, "TX_LU_REJECT"},
+ {SGS_UE_E_TX_LU_ACCEPT, "TX_LU_ACCEPT"},
+ {SGS_UE_E_TX_PAGING, "TX_PAGING"},
+ {SGS_UE_E_RX_SGSAP_UE_UNRECHABLE, "RX_SGSAP_UE_UNREACH"},
+ {SGS_UE_E_RX_TMSI_REALLOC, "RX_TMSI_REALLOC"},
+ {0, NULL}
+};
+
+/* Figure 4.2.2.1 SGs-NULL */
+static void sgs_ue_fsm_null(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct vlr_subscr *vsub = fi->priv;
+ int rc;
+
+ switch (event) {
+ case SGS_UE_E_RX_LU_FROM_MME:
+ osmo_fsm_inst_state_chg(fi, SGS_UE_ST_LA_UPD_PRES, 0, 0);
+ rc = vlr_subscr_req_lu(vsub, vsub->vlr->cfg.is_ps);
+ if (rc != 0)
+ LOGPFSML(fi, LOGL_ERROR, "(sub %s) HLR LU request failed\n", vlr_subscr_msisdn_or_name(vsub));
+ break;
+ case SGS_UE_E_TX_PAGING:
+ /* do nothing */
+ break;
+ case SGS_UE_E_RX_PAGING_FAILURE:
+ /* do nothing */
+ break;
+ default:
+ OSMO_ASSERT(0);
+ }
+}
+
+/* Figure 4.2.2.1 SGs-LA-UPDATE-PRESENT */
+static void sgs_ue_fsm_lau_present(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct vlr_subscr *vsub = fi->priv;
+
+ switch (event) {
+ case SGS_UE_E_TX_LU_ACCEPT:
+ vsub->cs.attached_via_ran = RAN_UTRAN_SGS;
+ osmo_fsm_inst_state_chg(fi, SGS_UE_ST_ASSOCIATED, 0, 0);
+ vsub->conf_by_radio_contact_ind = true;
+ break;
+ case SGS_UE_E_TX_LU_REJECT:
+ case SGS_UE_E_RX_PAGING_FAILURE:
+ case SGS_UE_E_RX_ALERT_FAILURE:
+ /* FIXME: Not sure if we really must reset this, it will
+ * be overwritten anyway when RAN changes to 2G or 3G? */
+ if (vsub->cs.attached_via_ran == RAN_UTRAN_SGS)
+ vsub->cs.attached_via_ran = RAN_UNKNOWN;
+ osmo_fsm_inst_state_chg(fi, SGS_UE_ST_NULL, 0, 0);
+ break;
+ case SGS_UE_E_TX_PAGING:
+ /* do nothing */
+ break;
+ default:
+ OSMO_ASSERT(0);
+ }
+}
+
+/* Figure 4.2.2.1 SGs-ASSOCIATED */
+static void sgs_ue_fsm_associated(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct vlr_subscr *vsub = fi->priv;
+ int rc;
+
+ switch (event) {
+ case SGS_UE_E_TX_PAGING:
+ /* do nothing */
+ break;
+ case SGS_UE_E_RX_TMSI_REALLOC:
+ /* do nothing */
+ break;
+ case SGS_UE_E_RX_SGSAP_UE_UNRECHABLE:
+ /* do nothing */
+ break;
+ case SGS_UE_E_RX_PAGING_FAILURE:
+ case SGS_UE_E_RX_ALERT_FAILURE:
+ /* FIXME: Not sure if we really must reset this, it will
+ * be overwritten anyway when RAN changes to 2G or 3G? */
+ if (vsub->cs.attached_via_ran == RAN_UTRAN_SGS)
+ vsub->cs.attached_via_ran = RAN_UNKNOWN;
+ osmo_fsm_inst_state_chg(fi, SGS_UE_ST_NULL, 0, 0);
+ break;
+ case SGS_UE_E_RX_LU_FROM_MME:
+ osmo_fsm_inst_state_chg(fi, SGS_UE_ST_LA_UPD_PRES, 0, 0);
+ rc = vlr_subscr_req_lu(vsub, vsub->vlr->cfg.is_ps);
+ if (rc != 0)
+ LOGPFSML(fi, LOGL_ERROR, "(sub %s) HLR LU request failed\n", vlr_subscr_msisdn_or_name(vsub));
+ break;
+ default:
+ OSMO_ASSERT(0);
+ }
+}
+
+/* Figure 4.2.2.1 From any of the three states (at the VLR) */
+static void sgs_ue_fsm_allstate(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+ struct vlr_subscr *vsub = fi->priv;
+
+ osmo_fsm_inst_update_id(fi, vlr_subscr_msisdn_or_name(vsub));
+
+ switch (event) {
+ case SGS_UE_E_VLR_FAILURE:
+ case SGS_UE_E_RX_RESET_FROM_MME:
+ case SGS_UE_E_RX_DETACH_IND_FROM_MME:
+ case SGS_UE_E_RX_DETACH_IND_FROM_UE:
+ case SGS_UE_E_RX_LU_FROM_A_IU_GS:
+ osmo_fsm_inst_state_chg(fi, SGS_UE_ST_NULL, 0, 0);
+ break;
+ default:
+ OSMO_ASSERT(0);
+ }
+}
+
+static int sgs_ue_fsm_timer_cb(struct osmo_fsm_inst *fi)
+{
+ return 0;
+}
+
+static const struct osmo_fsm_state sgs_ue_fsm_states[] = {
+ [SGS_UE_ST_NULL] = {
+ .name = "SGs-NULL",
+ .action = sgs_ue_fsm_null,
+ .in_event_mask = S(SGS_UE_E_RX_LU_FROM_MME) |
+ S(SGS_UE_E_TX_PAGING) | S(SGS_UE_E_RX_PAGING_FAILURE),
+ .out_state_mask = S(SGS_UE_ST_NULL) | S(SGS_UE_ST_LA_UPD_PRES),
+ },
+ [SGS_UE_ST_ASSOCIATED] = {
+ .name = "SGs-ASSOCIATED",
+ .action = sgs_ue_fsm_associated,
+ .in_event_mask = S(SGS_UE_E_TX_PAGING) |
+ S(SGS_UE_E_RX_TMSI_REALLOC) |
+ S(SGS_UE_E_RX_SGSAP_UE_UNRECHABLE) |
+ S(SGS_UE_E_RX_PAGING_FAILURE) |
+ S(SGS_UE_E_RX_ALERT_FAILURE) | S(SGS_UE_E_RX_LU_FROM_MME),
+ .out_state_mask = S(SGS_UE_ST_NULL) |
+ S(SGS_UE_ST_ASSOCIATED) | S(SGS_UE_ST_LA_UPD_PRES),
+ },
+ [SGS_UE_ST_LA_UPD_PRES] = {
+ .name = "SGs-LA-UPDATE-PRESENT",
+ .action = sgs_ue_fsm_lau_present,
+ .in_event_mask = S(SGS_UE_E_TX_LU_ACCEPT) |
+ S(SGS_UE_E_TX_LU_REJECT) |
+ S(SGS_UE_E_TX_PAGING) | S(SGS_UE_E_RX_PAGING_FAILURE) | S(SGS_UE_E_RX_ALERT_FAILURE),
+ .out_state_mask = S(SGS_UE_ST_NULL) |
+ S(SGS_UE_ST_ASSOCIATED) | S(SGS_UE_ST_LA_UPD_PRES),
+ },
+};
+
+static struct osmo_fsm sgs_ue_fsm = {
+ .name = "SGs-UE",
+ .states = sgs_ue_fsm_states,
+ .num_states = ARRAY_SIZE(sgs_ue_fsm_states),
+ .allstate_event_mask = S(SGS_UE_E_RX_RESET_FROM_MME) |
+ S(SGS_UE_E_VLR_FAILURE) |
+ S(SGS_UE_E_RX_DETACH_IND_FROM_MME) | S(SGS_UE_E_RX_DETACH_IND_FROM_UE) | S(SGS_UE_E_RX_LU_FROM_A_IU_GS),
+ .allstate_action = sgs_ue_fsm_allstate,
+ .timer_cb = sgs_ue_fsm_timer_cb,
+ .log_subsys = DSGS,
+ .event_names = sgs_ue_fsm_event_names,
+};
+
+/*! Initalize/Register SGs FSM in osmo-fsm subsystem */
+void vlr_sgs_fsm_init(void)
+{
+ if (osmo_fsm_find_by_name(sgs_ue_fsm.name) != &sgs_ue_fsm)
+ osmo_fsm_register(&sgs_ue_fsm);
+}
+
+/*! Crate SGs FSM in struct vlr_subscr.
+ * \param[in] vsub VLR subscriber for which the SGs FSM should be created. */
+void vlr_sgs_fsm_create(struct vlr_subscr *vsub)
+{
+ /* An SGSs FSM must not be created twice! */
+ OSMO_ASSERT(!vsub->sgs_fsm);
+
+ vsub->sgs_fsm = osmo_fsm_inst_alloc(&sgs_ue_fsm, vsub, vsub, LOGL_INFO, vlr_subscr_msisdn_or_name(vsub));
+ OSMO_ASSERT(vsub->sgs_fsm);
+
+ osmo_fsm_inst_state_chg(vsub->sgs_fsm, SGS_UE_ST_NULL, 0, 0);
+
+// DEBUGP(DSGS, "(sub %s) SGs FSM created\n", vlr_subscr_msisdn_or_name(vsub));
+}
+
+/*! Remove SGs FSM from struct vlr_subscr.
+ * \param[in] vsub VLR subscriber from which the SGs FSM should be removed. */
+void vlr_sgs_fsm_remove(struct vlr_subscr *vsub)
+{
+ /* An SGSs FSM must exist! */
+ OSMO_ASSERT(vsub->sgs_fsm);
+
+ osmo_fsm_inst_state_chg(vsub->sgs_fsm, SGS_UE_ST_NULL, 0, 0);
+ osmo_fsm_inst_term(vsub->sgs_fsm, OSMO_FSM_TERM_REGULAR, NULL);
+ vsub->sgs_fsm = NULL;
+}
diff --git a/src/libvlr/vlr_sgs_fsm.h b/src/libvlr/vlr_sgs_fsm.h
new file mode 100644
index 0000000..2233ceb
--- /dev/null
+++ b/src/libvlr/vlr_sgs_fsm.h
@@ -0,0 +1,41 @@
+/* (C) 2018 by sysmocom s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * Author: Harald Welte, Philipp Maier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#pragma once
+
+enum sgs_ue_fsm_event {
+ SGS_UE_E_VLR_FAILURE,
+ SGS_UE_E_RX_RESET_FROM_MME,
+ SGS_UE_E_RX_DETACH_IND_FROM_MME,
+ SGS_UE_E_RX_DETACH_IND_FROM_UE,
+ SGS_UE_E_RX_LU_FROM_A_IU_GS,
+ SGS_UE_E_RX_PAGING_FAILURE,
+ SGS_UE_E_RX_ALERT_FAILURE,
+ SGS_UE_E_RX_LU_FROM_MME,
+ SGS_UE_E_TX_LU_REJECT,
+ SGS_UE_E_TX_LU_ACCEPT,
+ SGS_UE_E_TX_PAGING,
+ SGS_UE_E_RX_SGSAP_UE_UNRECHABLE,
+ SGS_UE_E_RX_TMSI_REALLOC,
+};
+
+void vlr_sgs_fsm_init(void);
+void vlr_sgs_fsm_create(struct vlr_subscr *vsub);
+void vlr_sgs_fsm_remove(struct vlr_subscr *vsub);
diff --git a/src/osmo-msc/Makefile.am b/src/osmo-msc/Makefile.am
index bcc4ada..abe9ad3 100644
--- a/src/osmo-msc/Makefile.am
+++ b/src/osmo-msc/Makefile.am
@@ -12,6 +12,7 @@
$(LIBOSMOVTY_CFLAGS) \
$(LIBOSMOCTRL_CFLAGS) \
$(LIBOSMOABIS_CFLAGS) \
+ $(LIBOSMONETIF_CFLAGS) \
$(LIBSMPP34_CFLAGS) \
$(LIBOSMORANAP_CFLAGS) \
$(LIBASN1C_CFLAGS) \
@@ -40,11 +41,13 @@
$(LIBOSMOCORE_LIBS) \
$(LIBOSMOCTRL_LIBS) \
$(LIBOSMOABIS_LIBS) \
+ $(LIBOSMONETIF_LIBS) \
$(LIBSMPP34_LIBS) \
$(LIBOSMOSIGTRAN_LIBS) \
$(LIBOSMOMGCPCLIENT_LIBS) \
$(LIBOSMOGSUPCLIENT_LIBS) \
-ldbi \
+ -lsctp \
$(NULL)
if BUILD_IU
osmo_msc_LDADD += \
diff --git a/src/osmo-msc/msc_main.c b/src/osmo-msc/msc_main.c
index 53d27d3..f5bec7d 100644
--- a/src/osmo-msc/msc_main.c
+++ b/src/osmo-msc/msc_main.c
@@ -61,6 +61,7 @@
#include <osmocom/msc/smpp.h>
#include <osmocom/sigtran/osmo_ss7.h>
#include <osmocom/mgcp_client/mgcp_client.h>
+#include <osmocom/msc/sgs_iface.h>
#ifdef BUILD_IU
#include <osmocom/ranap/iu_client.h>
@@ -493,6 +494,12 @@
.description = "BSSAP Protocol (A Interface)",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
+ [DSGS] = {
+ .name = "DSGS",
+ .description = "SGs Interface (SGsAP)",
+ .enabled = 1, .loglevel = LOGL_NOTICE,
+ },
+
};
@@ -570,6 +577,7 @@
if (smpp_openbsc_alloc_init(tall_msc_ctx) < 0)
return -1;
#endif
+ sgs_init(tall_msc_ctx, msc_network);
rc = vty_read_config_file(msc_cmdline_config.config_file, NULL);
if (rc < 0) {
diff --git a/tests/msc_vlr/msc_vlr_test_authen_reuse.c b/tests/msc_vlr/msc_vlr_test_authen_reuse.c
index 6591557..cf5d67a 100644
--- a/tests/msc_vlr/msc_vlr_test_authen_reuse.c
+++ b/tests/msc_vlr/msc_vlr_test_authen_reuse.c
@@ -320,3 +320,23 @@
test_no_auth_reuse_utran,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_call.c b/tests/msc_vlr/msc_vlr_test_call.c
index 5819e51..486aa30 100644
--- a/tests/msc_vlr/msc_vlr_test_call.c
+++ b/tests/msc_vlr/msc_vlr_test_call.c
@@ -588,3 +588,23 @@
test_call_mo_to_unknown_timeout,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_gsm_authen.c b/tests/msc_vlr/msc_vlr_test_gsm_authen.c
index 8129781..fd5dd10 100644
--- a/tests/msc_vlr/msc_vlr_test_gsm_authen.c
+++ b/tests/msc_vlr/msc_vlr_test_gsm_authen.c
@@ -1003,3 +1003,23 @@
test_wrong_sres_length,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_gsm_ciph.c b/tests/msc_vlr/msc_vlr_test_gsm_ciph.c
index 8f256b1..b1ea4d0 100644
--- a/tests/msc_vlr/msc_vlr_test_gsm_ciph.c
+++ b/tests/msc_vlr/msc_vlr_test_gsm_ciph.c
@@ -1512,3 +1512,23 @@
test_cm_service_needs_classmark_update,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_hlr_reject.c b/tests/msc_vlr/msc_vlr_test_hlr_reject.c
index 13bed42..51c7d03 100644
--- a/tests/msc_vlr/msc_vlr_test_hlr_reject.c
+++ b/tests/msc_vlr/msc_vlr_test_hlr_reject.c
@@ -456,3 +456,23 @@
test_hlr_no_insert_data,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_hlr_timeout.c b/tests/msc_vlr/msc_vlr_test_hlr_timeout.c
index a237695..ae5f154 100644
--- a/tests/msc_vlr/msc_vlr_test_hlr_timeout.c
+++ b/tests/msc_vlr/msc_vlr_test_hlr_timeout.c
@@ -118,3 +118,23 @@
test_hlr_timeout_lu_upd_loc_result,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_ms_timeout.c b/tests/msc_vlr/msc_vlr_test_ms_timeout.c
index a4851b3..7ea2e79 100644
--- a/tests/msc_vlr/msc_vlr_test_ms_timeout.c
+++ b/tests/msc_vlr/msc_vlr_test_ms_timeout.c
@@ -368,3 +368,23 @@
test_classmark_update_timeout,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_no_authen.c b/tests/msc_vlr/msc_vlr_test_no_authen.c
index b34ddd7..c3e3cd1 100644
--- a/tests/msc_vlr/msc_vlr_test_no_authen.c
+++ b/tests/msc_vlr/msc_vlr_test_no_authen.c
@@ -983,3 +983,23 @@
test_no_authen_subscr_expire,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_reject_concurrency.c b/tests/msc_vlr/msc_vlr_test_reject_concurrency.c
index d206571..4af6571 100644
--- a/tests/msc_vlr/msc_vlr_test_reject_concurrency.c
+++ b/tests/msc_vlr/msc_vlr_test_reject_concurrency.c
@@ -404,3 +404,23 @@
test_reject_paging_resp_during_paging_resp,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_rest.c b/tests/msc_vlr/msc_vlr_test_rest.c
index 247e7ae..7af526f 100644
--- a/tests/msc_vlr/msc_vlr_test_rest.c
+++ b/tests/msc_vlr/msc_vlr_test_rest.c
@@ -203,3 +203,24 @@
test_lu_unknown_tmsi,
NULL
};
+
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_ss.c b/tests/msc_vlr/msc_vlr_test_ss.c
index 34aa634..ab43002 100644
--- a/tests/msc_vlr/msc_vlr_test_ss.c
+++ b/tests/msc_vlr/msc_vlr_test_ss.c
@@ -213,3 +213,23 @@
test_ss_ussd_no_geran, /* Network-originated */
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/msc_vlr/msc_vlr_test_umts_authen.c b/tests/msc_vlr/msc_vlr_test_umts_authen.c
index 62e280e..ffd209a 100644
--- a/tests/msc_vlr/msc_vlr_test_umts_authen.c
+++ b/tests/msc_vlr/msc_vlr_test_umts_authen.c
@@ -880,3 +880,23 @@
test_umts_authen_only_sres_utran,
NULL
};
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
diff --git a/tests/sms_queue/sms_queue_test.c b/tests/sms_queue/sms_queue_test.c
index 6ce0b88..5f87c17 100644
--- a/tests/sms_queue/sms_queue_test.c
+++ b/tests/sms_queue/sms_queue_test.c
@@ -236,3 +236,23 @@
return 0;
}
+
+void osmo_stream_srv_link_set_data(struct osmo_stream_srv_link *link, void *data) {}
+struct osmo_fd *osmo_stream_srv_get_ofd(struct osmo_stream_srv *srv) { return NULL; }
+void osmo_stream_srv_destroy(struct osmo_stream_srv *conn) {}
+struct osmo_stream_srv *osmo_stream_srv_create(void *ctx, struct osmo_stream_srv_link *link,
+ int fd, int (*cb)(struct osmo_stream_srv *conn),
+ int (*closed_cb)(struct osmo_stream_srv *conn),
+ void *data) { return NULL; }
+void osmo_stream_srv_send(struct osmo_stream_srv *conn, struct msgb *msg) {}
+void osmo_stream_srv_link_set_proto(struct osmo_stream_srv_link *link, uint16_t proto) {}
+struct osmo_fd *osmo_stream_srv_link_get_ofd(struct osmo_stream_srv_link *link) { return NULL; }
+struct osmo_stream_srv_link *osmo_stream_srv_link_create(void *ctx) { return NULL; }
+void *osmo_stream_srv_get_data(struct osmo_stream_srv *conn) { return NULL; }
+void osmo_stream_srv_link_set_nodelay(struct osmo_stream_srv_link *link, bool nodelay) {}
+void osmo_stream_srv_link_set_accept_cb(struct osmo_stream_srv_link *link, int (*accept_cb)
+ (struct osmo_stream_srv_link *link, int fd)) {}
+int osmo_stream_srv_link_open(struct osmo_stream_srv_link *link) { return 0; }
+void *osmo_stream_srv_link_get_data(struct osmo_stream_srv_link *link) { return NULL; }
+void osmo_stream_srv_link_set_port(struct osmo_stream_srv_link *link, uint16_t port) {}
+int sctp_recvmsg(int sd, void *msg, size_t len, void *from, void *fromlen, void *info, int *msg_flags) { return 0; }
--
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Gerrit-Project: osmo-msc
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I73359925fc1ca72b33a1466e6ac41307f2f0b11d
Gerrit-Change-Number: 11642
Gerrit-PatchSet: 1
Gerrit-Owner: dexter <pmaier at sysmocom.de>
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