pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-hnbgw/+/39978?usp=email )
Change subject: Set 'hnbap-allow-tmsi 1' by default
......................................................................
Set 'hnbap-allow-tmsi 1' by default
Due to historical reasons [0], we didn't allow UE Registration with
(P)TMSI by default, only with IMSI. The historical reasons were fixed a
long time ago, and hence why virtually every osmo-hnbgw you can find
nowadays (see doc/examples/ dir) contained an explicit "hnbap-allow-tmsi
1" to override the default behavior.
However, the fact that this was not the default behavior causes some
problems on production network which didn't have this config set
explicitly. Hence, enable it by default.
[0] Original osmo-hnbgw code in osmo-iuh.git
12181a937ff5658af49e12c57cb08ecba859e1f1 where this feature was added
explains with more detail the problem. If UE registered with TMSI, then
the HNBGW at the time didn't have information about its IMSI and hence
could not page the UE from IMSI. Since ~5.5 years ago (Sep 2019 in
osmo-sgsn.git 10b3d70fea9628eecb58f07e1bce31f63823edfb), osmo-sgsn
already sends a Common Id to the HNBGW containing the UE IMSI when it
registers, so the HNBGW has no related problem anymore.
The VTY command is left available in the event somebody wants to operate
osmo-hnbgw with a broken MSC/SGSN (like older mentioned osmo-sgsn).
We also removed tons of ue-context related logic from osmo-hnbgw in
osmo-hnbgw.git 15e552f2321979ecedb438792d507c55669e4b14, and we have
plenty of ttcn3 tests validating paging scenarios, so it doesn't seem we
have problems anymore with current code base.
Related: SYS#7430
Change-Id: I3c4c0decf34959fc2d5683b02224f27d204aa5e9
---
M doc/examples/osmo-hnbgw/osmo-hnbgw-cs7.cfg
M doc/examples/osmo-hnbgw/osmo-hnbgw-pfcp.cfg
M doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
M src/osmo-hnbgw/hnbgw.c
M src/osmo-hnbgw/hnbgw_vty.c
M tests/osmo-hnbgw-vty-test.cfg
6 files changed, 4 insertions(+), 7 deletions(-)
Approvals:
pespin: Looks good to me, approved
fixeria: Looks good to me, but someone else must approve
Jenkins Builder: Verified
diff --git a/doc/examples/osmo-hnbgw/osmo-hnbgw-cs7.cfg b/doc/examples/osmo-hnbgw/osmo-hnbgw-cs7.cfg
index 671d790..ee9c89e 100644
--- a/doc/examples/osmo-hnbgw/osmo-hnbgw-cs7.cfg
+++ b/doc/examples/osmo-hnbgw/osmo-hnbgw-cs7.cfg
@@ -13,7 +13,6 @@
plmn 001 01
iuh
local-ip 0.0.0.0
- hnbap-allow-tmsi 1
msc 0
remote-addr my-msc
sgsn 0
diff --git a/doc/examples/osmo-hnbgw/osmo-hnbgw-pfcp.cfg b/doc/examples/osmo-hnbgw/osmo-hnbgw-pfcp.cfg
index 7599427..13835ad 100644
--- a/doc/examples/osmo-hnbgw/osmo-hnbgw-pfcp.cfg
+++ b/doc/examples/osmo-hnbgw/osmo-hnbgw-pfcp.cfg
@@ -11,7 +11,6 @@
plmn 001 01
iuh
local-ip 0.0.0.0
- hnbap-allow-tmsi 1
mgw 0
remote-ip 127.0.0.1
local-port 2729
diff --git a/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg b/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
index 996a3ae..dd82788 100644
--- a/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
+++ b/doc/examples/osmo-hnbgw/osmo-hnbgw.cfg
@@ -11,7 +11,6 @@
plmn 001 01
iuh
local-ip 0.0.0.0
- hnbap-allow-tmsi 1
mgw 0
remote-ip 127.0.0.1
local-port 2729
diff --git a/src/osmo-hnbgw/hnbgw.c b/src/osmo-hnbgw/hnbgw.c
index 0a2f670..c5ee2c1 100644
--- a/src/osmo-hnbgw/hnbgw.c
+++ b/src/osmo-hnbgw/hnbgw.c
@@ -978,6 +978,7 @@
/* strdup so we can easily talloc_free in the VTY code */
g_hnbgw->config.iuh_local_ip = talloc_strdup(g_hnbgw, HNBGW_LOCAL_IP_DEFAULT);
g_hnbgw->config.iuh_local_port = IUH_DEFAULT_SCTP_PORT;
+ g_hnbgw->config.hnbap_allow_tmsi = true;
g_hnbgw->config.log_prefix_hnb_id = true;
g_hnbgw->config.accept_all_hnb = true;
diff --git a/src/osmo-hnbgw/hnbgw_vty.c b/src/osmo-hnbgw/hnbgw_vty.c
index 68d4b1f..d99a998 100644
--- a/src/osmo-hnbgw/hnbgw_vty.c
+++ b/src/osmo-hnbgw/hnbgw_vty.c
@@ -334,7 +334,7 @@
"hnbap-allow-tmsi (0|1)",
"Allow HNBAP UE Register messages with TMSI or PTMSI identity\n"
"Only accept IMSI identity, reject TMSI or PTMSI\n"
- "Accept IMSI, TMSI or PTMSI as UE identity\n")
+ "Accept IMSI, TMSI or PTMSI as UE identity (default)\n")
{
g_hnbgw->config.hnbap_allow_tmsi = (*argv[0] == '1');
return CMD_SUCCESS;
@@ -1039,8 +1039,8 @@
if (port && port != IUH_DEFAULT_SCTP_PORT)
vty_out(vty, " local-port %u%s", port, VTY_NEWLINE);
- if (g_hnbgw->config.hnbap_allow_tmsi)
- vty_out(vty, " hnbap-allow-tmsi 1%s", VTY_NEWLINE);
+ if (!g_hnbgw->config.hnbap_allow_tmsi)
+ vty_out(vty, " hnbap-allow-tmsi 0%s", VTY_NEWLINE);
return CMD_SUCCESS;
}
diff --git a/tests/osmo-hnbgw-vty-test.cfg b/tests/osmo-hnbgw-vty-test.cfg
index 6f9c0b6..11327a3 100644
--- a/tests/osmo-hnbgw-vty-test.cfg
+++ b/tests/osmo-hnbgw-vty-test.cfg
@@ -32,7 +32,6 @@
hnbgw
iuh
local-ip 0.0.0.0
- hnbap-allow-tmsi 1
mgw 0
remote-ip 127.0.0.1
local-port 2729
--
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Gerrit-MessageType: merged
Gerrit-Project: osmo-hnbgw
Gerrit-Branch: master
Gerrit-Change-Id: I3c4c0decf34959fc2d5683b02224f27d204aa5e9
Gerrit-Change-Number: 39978
Gerrit-PatchSet: 3
Gerrit-Owner: pespin <pespin(a)sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de>
Gerrit-Reviewer: laforge <laforge(a)osmocom.org>
Gerrit-Reviewer: lynxis lazus <lynxis(a)fe80.eu>
Gerrit-Reviewer: neels <nhofmeyr(a)sysmocom.de>
Gerrit-Reviewer: pespin <pespin(a)sysmocom.de>
pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/39997?usp=email )
Change subject: hnbgw: Test paging with PAge Area ID IE
......................................................................
hnbgw: Test paging with PAge Area ID IE
Change-Id: I313aadae08f187b413e894a93faa29ce771ef7fe
---
M hnbgw/HNBGW_Tests.ttcn
M hnbgw/expected-results.xml
M library/ranap/RANAP_Templates.ttcn
3 files changed, 170 insertions(+), 2 deletions(-)
Approvals:
fixeria: Looks good to me, approved
laforge: Looks good to me, but someone else must approve
Jenkins Builder: Verified
diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index a261264..862bff9 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -2185,6 +2185,108 @@
f_shutdown_helper();
}
+/* Make sure that whichever MSC paged a subscriber will also get the Paging Response. Page by IMSI, which would be
+ * round-robined to another MSC, to make sure the Paging->Response relation is stronger than the NRI->MSC mapping. */
+friend function f_tc_mscpool_paging_imsi_lai_registered(charstring id) runs on ConnHdlr {
+ var hexstring imsi := '001010000000123'H;
+ var RANAP_IEs.CN_DomainIndicator domain_ind;
+ var template (value) RANAP_IEs.LAI lai := ts_RANAP_LAI(hex2oct(g_pars.hnb.lai.mcc_mnc),
+ int2oct(g_pars.hnb.lai.lac, 2));
+ var template (value) RANAP_IEs.PagingAreaID pag_area_id := ts_RANAP_PagingAreaID_LAI(lai);
+ if (g_pars.ps_domain) {
+ domain_ind := ps_domain;
+ } else {
+ domain_ind := cs_domain;
+ }
+ var template (value) RANAP_PDU paging := ts_RANAP_Paging_pag_area_id(domain_ind, imsi_hex2oct(imsi), pag_area_id);
+ BSSAP.send(ts_RANAP_UNITDATA_req(g_pars.sccp_addr_hnbgw, g_pars.sccp_addr_msc, paging));
+ /* TODO: Expect RUA ConnectionlessTransfer Paging (on subset of HNB).
+ * We could verify the Paging sent from osmo-hnbgw to RUA with some effort,
+ * but, this test does not care whether the Paging was forwarded to RUA or not, only that osmo-hnbgw *received*
+ * the Paging. In the CN pool decisions, osmo-hnbgw should match up Paging Response to an earlier Paging.
+ */
+
+ f_sleep(1.0);
+
+ /* Despite the round robin pointing at the second MSC ('roundrobin next msc 1'), the earlier Paging for the same IMSI
+ * causes this Paging Response to go to the first MSC ('msc 0'). */
+ f_perform_compl_l3(f_gen_one_compl_l3(PAGRESP, ts_MI_IMSI_LV(imsi)));
+ f_sleep(1.0);
+}
+
+/* Test CN sending a RANAP Paging Command with Paging Area ID IE (LAI) present requesting a registered HNB: */
+testcase TC_mscpool_paging_imsi_lai_registered() runs on test_CT {
+ f_init(nr_msc := 3);
+ f_sleep(1.0);
+
+ var boolean ps_domain := false;
+
+ /* Testing a Paging on the first MSC to get a Paging Response back to the first MSC. Set round robin to the
+ * second MSC to make sure we're getting the Paging logic, not a coincidental round robin match. */
+ f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0);
+
+ f_ctrs_cn_init(ps_domain := ps_domain);
+
+ var ConnHdlr vc_conn1;
+ var template (value) TestHdlrParams pars1 := f_TestHdlrParams(0, ps_domain := ps_domain, cn_nr := 0);
+ vc_conn1 := f_start_handler_with_pars(refers(f_tc_mscpool_paging_imsi_lai_registered), pars1);
+ vc_conn1.done;
+ f_ctrs_cn_expect(0, "cnpool:subscr:paged");
+ f_shutdown_helper();
+}
+
+/* Make sure that whichever MSC paged a subscriber will also get the Paging Response. Page by IMSI, which would be
+ * round-robined to another MSC, to make sure the Paging->Response relation is stronger than the NRI->MSC mapping. */
+friend function f_tc_mscpool_paging_imsi_rai_registered(charstring id) runs on ConnHdlr {
+ var hexstring imsi := '001010000000123'H;
+ var RANAP_IEs.CN_DomainIndicator domain_ind;
+ var template (value) RANAP_IEs.LAI lai := ts_RANAP_LAI(hex2oct(g_pars.hnb.lai.mcc_mnc),
+ int2oct(g_pars.hnb.lai.lac, 2));
+ var template (value) RANAP_IEs.RAI rai := ts_RANAP_RAI(lai,
+ int2oct(g_pars.hnb.rac, 1));
+ var template (value) RANAP_IEs.PagingAreaID pag_area_id := ts_RANAP_PagingAreaID_RAI(rai);
+ if (g_pars.ps_domain) {
+ domain_ind := ps_domain;
+ } else {
+ domain_ind := cs_domain;
+ }
+ var template (value) RANAP_PDU paging := ts_RANAP_Paging_pag_area_id(domain_ind, imsi_hex2oct(imsi), pag_area_id);
+ BSSAP.send(ts_RANAP_UNITDATA_req(g_pars.sccp_addr_hnbgw, g_pars.sccp_addr_msc, paging));
+ /* TODO: Expect RUA ConnectionlessTransfer Paging (on subset of HNB).
+ * We could verify the Paging sent from osmo-hnbgw to RUA with some effort,
+ * but, this test does not care whether the Paging was forwarded to RUA or not, only that osmo-hnbgw *received*
+ * the Paging. In the CN pool decisions, osmo-hnbgw should match up Paging Response to an earlier Paging.
+ */
+
+ f_sleep(1.0);
+
+ /* Despite the round robin pointing at the second MSC ('roundrobin next msc 1'), the earlier Paging for the same IMSI
+ * causes this Paging Response to go to the first MSC ('msc 0'). */
+ f_perform_compl_l3(f_gen_one_compl_l3(PAGRESP, ts_MI_IMSI_LV(imsi)));
+ f_sleep(1.0);
+}
+
+/* Test CN sending a RANAP Paging Command with Paging Area ID IE (LAI) present requesting a registered HNB: */
+testcase TC_mscpool_paging_imsi_rai_registered() runs on test_CT {
+ f_init(nr_msc := 3);
+ f_sleep(1.0);
+
+ var boolean ps_domain := true;
+
+ /* Testing a Paging on the first MSC to get a Paging Response back to the first MSC. Set round robin to the
+ * second MSC to make sure we're getting the Paging logic, not a coincidental round robin match. */
+ f_vty_set_roundrobin_next(HNBGWVTY, ps_domain, 0);
+
+ f_ctrs_cn_init(ps_domain := ps_domain);
+
+ var ConnHdlr vc_conn1;
+ var template (value) TestHdlrParams pars1 := f_TestHdlrParams(0, ps_domain := ps_domain, cn_nr := 0);
+ vc_conn1 := f_start_handler_with_pars(refers(f_tc_mscpool_paging_imsi_rai_registered), pars1);
+ vc_conn1.done;
+ f_ctrs_cn_expect(0, "cnpool:subscr:paged");
+ f_shutdown_helper();
+}
+
/* For round-robin, skip a CN link that has 'no allow-attach' set. */
testcase TC_mscpool_no_allow_attach_round_robin() runs on test_CT {
@@ -2501,6 +2603,8 @@
execute( TC_mscpool_LU_by_tmsi_from_other_PLMN() );
execute( TC_mscpool_paging_imsi() );
execute( TC_mscpool_paging_tmsi() );
+ execute( TC_mscpool_paging_imsi_lai_registered() );
+ execute( TC_mscpool_paging_imsi_rai_registered() );
execute( TC_mscpool_no_allow_attach_round_robin() );
execute( TC_mscpool_no_allow_attach_valid_nri() );
execute( TC_mscpool_sccp_n_pcstate_detaches_cnlink() );
diff --git a/hnbgw/expected-results.xml b/hnbgw/expected-results.xml
index 655db84..3fca542 100644
--- a/hnbgw/expected-results.xml
+++ b/hnbgw/expected-results.xml
@@ -43,6 +43,8 @@
<testcase classname='HNBGW_Tests' name='TC_mscpool_LU_by_tmsi_from_other_PLMN' time='MASKED'/>
<testcase classname='HNBGW_Tests' name='TC_mscpool_paging_imsi' time='MASKED'/>
<testcase classname='HNBGW_Tests' name='TC_mscpool_paging_tmsi' time='MASKED'/>
+ <testcase classname='HNBGW_Tests' name='TC_mscpool_paging_imsi_lai_registered' time='MASKED'/>
+ <testcase classname='HNBGW_Tests' name='TC_mscpool_paging_imsi_rai_registered' time='MASKED'/>
<testcase classname='HNBGW_Tests' name='TC_mscpool_no_allow_attach_round_robin' time='MASKED'/>
<testcase classname='HNBGW_Tests' name='TC_mscpool_no_allow_attach_valid_nri' time='MASKED'/>
<testcase classname='HNBGW_Tests' name='TC_mscpool_sccp_n_pcstate_detaches_cnlink' time='MASKED'/>
diff --git a/library/ranap/RANAP_Templates.ttcn b/library/ranap/RANAP_Templates.ttcn
index b09d23e..c328171 100644
--- a/library/ranap/RANAP_Templates.ttcn
+++ b/library/ranap/RANAP_Templates.ttcn
@@ -760,7 +760,8 @@
*****************************************************************************************************/
template (value) RANAP_PDU
-ts_RANAP_Paging(template (value) CN_DomainIndicator dom, template (value) IMSI imsi,
+ts_RANAP_Paging(template (value) CN_DomainIndicator dom,
+ template (value) IMSI imsi,
template (omit) Paging.protocolExtensions exts := omit) := {
initiatingMessage := {
procedureCode := id_Paging,
@@ -790,7 +791,8 @@
}
}
template RANAP_PDU
-tr_RANAP_Paging(template CN_DomainIndicator dom, template IMSI imsi,
+tr_RANAP_Paging(template (present) CN_DomainIndicator dom,
+ template (present) IMSI imsi,
template Paging.protocolExtensions exts := *) := {
initiatingMessage := {
procedureCode := id_Paging,
@@ -820,6 +822,7 @@
}
}
+
template (value) TemporaryUE_ID ts_RANAP_TemporaryUE_ID_TMSI(octetstring tmsi) := {
tMSI := tmsi
}
@@ -862,6 +865,65 @@
}
}
+template (value) LAI ts_RANAP_LAI(template (value) OCT3 pLMNidentity,
+ template (value) OCT2 lac) := {
+ pLMNidentity := pLMNidentity,
+ lAC := lac,
+ iE_Extensions := omit
+};
+
+template (value) RAI ts_RANAP_RAI(template (value) LAI lai,
+ template (value) OCT1 rac) := {
+ lAI := lai,
+ rAC := rac,
+ iE_Extensions := omit
+};
+
+template (value) PagingAreaID ts_RANAP_PagingAreaID_LAI(template (value) LAI lai) := {
+ lAI := lai
+};
+
+template (value) PagingAreaID ts_RANAP_PagingAreaID_RAI(template (value) RAI rai) := {
+ rAI := rai
+};
+
+template (value) RANAP_PDU
+ts_RANAP_Paging_pag_area_id(template (value) CN_DomainIndicator dom, template (value) IMSI imsi,
+ template (value) PagingAreaID pag_area_id,
+ template (omit) Paging.protocolExtensions exts := omit) := {
+ initiatingMessage := {
+ procedureCode := id_Paging,
+ criticality := ignore,
+ value_ := {
+ paging := {
+ protocolIEs := {
+ {
+ id := id_CN_DomainIndicator,
+ criticality := ignore,
+ value_ := {
+ cN_DomainIndicator := dom
+ }
+ }, {
+ id := id_PermanentNAS_UE_ID,
+ criticality := ignore,
+ value_ := {
+ permanentNAS_UE_ID := {
+ iMSI := imsi
+ }
+ }
+ }, {
+ id := id_PagingAreaID,
+ criticality := ignore,
+ value_ := {
+ pagingAreaID := pag_area_id
+ }
+ }
+ },
+ protocolExtensions := exts
+ }
+ }
+ }
+}
/*****************************************************************************************************
* Common ID
--
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Attention is currently required from: laforge.
fixeria has posted comments on this change by laforge. ( https://gerrit.osmocom.org/c/docker-playground/+/39972?usp=email )
Change subject: upgrade to gerrit 3.10.x as 3.9 is EOL on May 12th
......................................................................
Patch Set 1: Code-Review+2
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