pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/42501?usp=email )
Change subject: pgw: Test v6 and v4v6 PDU session userplane
......................................................................
pgw: Test v6 and v4v6 PDU session userplane
Change-Id: Idf009b9118db8117c547a1bb0f27afdfa3f03924
---
M library/GTPv2_Templates.ttcn
M pgw/PGW_Tests.cfg
M pgw/PGW_Tests.ttcn
M pgw/expected-results.xml
M pgw/open5gs-smf.yaml
M pgw/open5gs-upf.yaml
M pgw/testenv.sh
7 files changed, 220 insertions(+), 43 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/01/42501/1
diff --git a/library/GTPv2_Templates.ttcn b/library/GTPv2_Templates.ttcn
index 539251c..0ac6cf8 100644
--- a/library/GTPv2_Templates.ttcn
+++ b/library/GTPv2_Templates.ttcn
@@ -390,6 +390,20 @@
tr_GTP2C_PdnAddrAlloc_v4(template (present) OCT4 addr) :=
ts_GTP2C_PdnAddrAlloc('001'B, {iPv4_Address:=addr});
+template (value) PDN_AddressAllocation
+ts_GTP2C_PdnAddrAlloc_v6(template (value) IPv6 addr) :=
+ ts_GTP2C_PdnAddrAlloc('010'B, {iPv6_Address:=addr});
+template (present) PDN_AddressAllocation
+tr_GTP2C_PdnAddrAlloc_v6(template (present) IPv6 addr) :=
+ ts_GTP2C_PdnAddrAlloc('010'B, {iPv6_Address:=addr});
+
+template (value) PDN_AddressAllocation
+ts_GTP2C_PdnAddrAlloc_v4v6(template (value) IPv4_IPv6 addr) :=
+ ts_GTP2C_PdnAddrAlloc('011'B, {iPv4_IPv6:=addr});
+template (present) PDN_AddressAllocation
+tr_GTP2C_PdnAddrAlloc_v4v6(template (present) IPv4_IPv6 addr) :=
+ ts_GTP2C_PdnAddrAlloc('011'B, {iPv4_IPv6:=addr});
+
/* 8.15 */
template (value) Bearer_QoS
ts_GTP2C_BearerQos(template (value) OCT1 qci,
@@ -903,6 +917,27 @@
tr_PDU_GTP2C(omit, seq, { echoResponse := ? }, omit);
+private function f_ts_PDN_AddressAllocation_request(template (value) BIT3
pdn_type)
+return template (value) PDN_AddressAllocation
+{
+ var template (value) PDN_AddressAllocation paa;
+ select (valueof(pdn_type)) {
+ case ('001'B) {
+ paa := ts_GTP2C_PdnAddrAlloc_v4('00000000'O);
+ }
+ case ('010'B) {
+ paa := ts_GTP2C_PdnAddrAlloc_v6({ prefixLength := 64,
+ iPv6_Address :=
'00000000000000000000000000000000'O });
+ }
+ case ('011'B) {
+ paa := ts_GTP2C_PdnAddrAlloc_v4v6({ prefixLength := 64,
+ iPv6_Address :=
'00000000000000000000000000000000'O,
+ iPv4_Address := '00000000'O
});
+ }
+ }
+
+ return paa;
+}
template (present) PDU_GTPCv2
ts_GTP2C_CreateSessionReq(template (value) hexstring imsi, template (omit)
hexstring msisdn,
@@ -926,7 +961,7 @@
accessPointName := ts_GTP2C_APN(apn),
selectionMode := ts_GTP2C_SelectionMode(0),
pDN_Type := ts_GTP2C_PdnType(pdn_type),
- pDN_AddressAllocation := ts_GTP2C_PdnAddrAlloc('001'B,
{iPv4_Address:='00000000'O}),
+ pDN_AddressAllocation :=
f_ts_PDN_AddressAllocation_request(pdn_type),
maxAPN_Restriction := ts_GTP2C_ApnRestriction(0),
ambr := ts_GTP2C_Ambr(102400, 102400),
linkedEPS_Bearer_ID := omit,
diff --git a/pgw/PGW_Tests.cfg b/pgw/PGW_Tests.cfg
index 68688c1..d280a6d 100644
--- a/pgw/PGW_Tests.cfg
+++ b/pgw/PGW_Tests.cfg
@@ -17,6 +17,7 @@
PGW_Tests.mp_run_prog_log_path := "./run_prog"
PGW_Tests.mp_run_prog_as_user := "osmocom" # testenv.sh sets this to $USER
PGW_Tests.mp_ping_hostname := "10.45.0.1"
+PGW_Tests.mp_ping_hostname6 := "cafe::1"
PGW_Tests.mp_pcrf_local_ip:= "127.0.0.202"
PGW_Tests.mp_ocs_local_ip:= "127.0.0.202"
PGW_Tests.mp_aaa_local_ip:= "127.0.0.202"
diff --git a/pgw/PGW_Tests.ttcn b/pgw/PGW_Tests.ttcn
index a670881..1e02aec 100644
--- a/pgw/PGW_Tests.ttcn
+++ b/pgw/PGW_Tests.ttcn
@@ -35,6 +35,7 @@
charstring mp_run_prog_log_path := "/tmp";
charstring mp_run_prog_as_user := "laforge";
charstring mp_ping_hostname := "10.45.0.1";
+ charstring mp_ping_hostname6 := "cafe::1";
charstring mp_pcrf_local_ip := "127.0.0.9";
integer mp_pcrf_local_port := 3868;
@@ -117,8 +118,8 @@
/* Address allocation */
var OCT4 g_ip4_addr;
+ var OCT8 g_ip6_interface_id;
var OCT16 g_ip6_addr;
- var integer g_ip6_plen;
/* Store last received Gy message */
var PDU_DIAMETER g_rx_gy;
@@ -674,6 +675,58 @@
return omit;
}
+private function f_create_sess_tun() runs on PGW_Session_CT
+{
+ var template (value) UECUPS_AddrType user_addr_type;
+ var template (value) OCT4_20n user_addr;
+
+ select (g_pars.pdn_type) {
+ case (GTP2C_PDN_IPv4) {
+ user_addr_type := IPV4;
+ user_addr := g_ip4_addr;
+ }
+ case (GTP2C_PDN_IPv6) {
+ user_addr_type := IPV6;
+ user_addr := g_ip6_addr;
+ }
+ case (GTP2C_PDN_IPv4v6) {
+ user_addr_type := IPV4V6;
+ user_addr := g_ip4_addr & g_ip6_addr;
+ }
+ }
+
+ var template (value) UECUPS_CreateTun uecups_create :=
ts_UECUPS_CreateTun(
+ tx_teid := oct2int(g_pars.bearer.teid_remote),
+ rx_teid := oct2int(g_pars.bearer.teid_local),
+ user_addr_type := user_addr_type,
+ user_addr := user_addr,
+ local_gtp_ep :=
valueof(ts_UECUPS_SockAddr(f_inet_addr(mp_local_hostname_u))),
+ remote_gtp_ep := valueof(ts_UECUPS_SockAddr(g_gtpu4_remote)),
+ tun_dev_name := g_pars.tun_dev_name,
+ tun_netns_name := g_pars.tun_netns_name
+ );
+
+ /* create tunnel in daemon */
+ f_gtp1u_create_tunnel(uecups_create);
+}
+
+private function f_perform_ipv6_slaac() runs on PGW_Session_CT
+{
+ var UECUPS_IPv6SLAACInd ipv6slaac_ind;
+ var template (value) UECUPS_IPv6SLAAC ipv6slaac;
+ ipv6slaac := ts_UECUPS_IPv6SLAAC(
+ local_gtp_ep :=
valueof(ts_UECUPS_SockAddr(f_inet_addr(mp_local_hostname_u))),
+ rx_teid := oct2int(g_pars.bearer.teid_local)
+ );
+ f_gtp1u_ipv6_slaac(ipv6slaac);
+ GTP1U[0].receive(UECUPS_IPv6SLAACInd:?) -> value ipv6slaac_ind;
+ log("5GC assigned IPv6 global prefix: ", ipv6slaac_ind.ipv6_prefix, "
-> ", f_inet6_ntoa(ipv6slaac_ind.ipv6_prefix & '0000000000000000'O));
+
+ /* Use the first global IPv6 address in the IPv6 prefix picked by
osmo-uecups: */
+ g_ip6_addr := ipv6slaac_ind.ipv6_user_addr;
+ log("Using IPv6 global address: ", g_ip6_addr);
+}
+
/* process one to-be-created bearer context */
private function process_bctx_create(BearerContextGrouped bctx) runs on
PGW_Session_CT
{
@@ -702,26 +755,10 @@
g_gtpu6_remote := rx_fteid.iPv6_Address;
}
- var template (value) UECUPS_CreateTun uecups_create :=
ts_UECUPS_CreateTun(
- tx_teid := oct2int(g_pars.bearer.teid_remote),
- rx_teid := oct2int(g_pars.bearer.teid_local),
- user_addr_type := IPV4,
- user_addr := '00000000'O,
- local_gtp_ep :=
valueof(ts_UECUPS_SockAddr(f_inet_addr(mp_local_hostname_u))),
- remote_gtp_ep := valueof(ts_UECUPS_SockAddr(g_gtpu4_remote)),
- tun_dev_name := g_pars.tun_dev_name,
- tun_netns_name := g_pars.tun_netns_name
- );
-
- /* create tunnel in daemon */
- if (isbound(g_ip4_addr)) {
- uecups_create.user_addr := g_ip4_addr;
- f_gtp1u_create_tunnel(uecups_create);
- }
- if (isbound(g_ip6_addr)) {
- uecups_create.user_addr_type := IPV6;
- uecups_create.user_addr := g_ip6_addr;
- f_gtp1u_create_tunnel(uecups_create);
+ f_create_sess_tun();
+ if (g_pars.pdn_type == GTP2C_PDN_IPv6 or
+ g_pars.pdn_type == GTP2C_PDN_IPv4v6) {
+ f_perform_ipv6_slaac();
}
}
@@ -780,13 +817,28 @@
var PDN_Address_and_Prefix paa :=
resp.pDN_AddressAllocation.pDN_Address_and_Prefix;
if (ischosen(paa.iPv4_Address)) {
g_ip4_addr := paa.iPv4_Address;
+ log("PGW assigned UE IPv4 address: ",
f_inet_ntoa(g_ip4_addr));
} else if (ischosen(paa.iPv6_Address)) {
- g_ip6_addr := paa.iPv6_Address.iPv6_Address;
- g_ip6_plen := paa.iPv6_Address.prefixLength;
+ if (paa.iPv6_Address.prefixLength != 64) {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__,
fail,
+ log2str("Got IPv6
Prefix Length ",
+
paa.iPv6_Address.prefixLength, " vs exp 64"));
+ }
+ g_ip6_interface_id :=
substr(paa.iPv6_Address.iPv6_Address, 8, 8);
+ log("PGW assigned IPv6 Interface Id: ",
g_ip6_interface_id);
+ g_ip6_addr := 'FE80000000000000'O & g_ip6_interface_id;
+ log("PGW assigned IPv6 link-local Address: ",
f_inet6_ntoa(g_ip6_addr));
} else if (ischosen(paa.iPv4_IPv6)) {
+ if (paa.iPv4_IPv6.prefixLength != 64) {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__,
fail,
+ log2str("Got IPv6
Prefix Length ",
+
paa.iPv6_Address.prefixLength, " vs exp 64"));
+ }
g_ip4_addr := paa.iPv4_IPv6.iPv4_Address;
- g_ip6_addr := paa.iPv4_IPv6.iPv6_Address;
- g_ip6_plen := paa.iPv4_IPv6.prefixLength;
+ g_ip6_interface_id :=
substr(paa.iPv4_IPv6.iPv6_Address, 8, 8);
+ log("PGW assigned IPv6 Interface Id: ",
g_ip6_interface_id);
+ g_ip6_addr := 'FE80000000000000'O & g_ip6_interface_id;
+ log("PGW assigned IPv6 link-local Address: ",
f_inet6_ntoa(g_ip6_addr));
}
var integer i;
for (i := 0; i < lengthof(resp.bearerContextGrouped); i := i+1)
{
@@ -920,16 +972,21 @@
}
/* execute ping command and wait for result */
-private function f_ping4(charstring host, integer interval := 1, integer count
:= 10) runs on PGW_Session_CT
+private function f_ping(charstring host, integer interval := 1, integer count
:= 10) runs on PGW_Session_CT
{
- if (not isbound(g_ip4_addr)) {
- Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "f_ping4():
g_ip4_addr is unset!");
- }
- /* command will be filled in by f_gtp1u_ping() below: */
+ /* command will be filled in by f_gtp1u_ping4() below: */
var UECUPS_StartProgram sprog := f_run_prog_init("");
- f_gtp1u_ping(sprog, host, interval, count, f_inet_ntoa(g_ip4_addr),
- redirect_output := true,
- redirect_output_path_prefix :=
f_run_prog_unique_log_path());
+ var charstring bind_addr;
+
+ if (f_addr_is_ipv6(host)) {
+ bind_addr := f_inet6_ntoa(g_ip6_addr);
+ } else {
+ bind_addr := f_inet_ntoa(g_ip4_addr);
+ }
+
+ f_gtp1u_ping(sprog, host, interval, count, bind_addr,
+ redirect_output := true,
+ redirect_output_path_prefix :=
f_run_prog_unique_log_path());
}
/* send echo request; expect response */
@@ -957,21 +1014,25 @@
}
testcase TC_createSession() runs on PGW_Test_CT {
var PGW_Session_CT vc_conn;
- var SessionPars pars := valueof(t_SessionPars('001010123456789'H,
"tun22"));
+ var SessionPars pars := valueof(t_SessionPars('001010123456789'H,
+ "tun22",
+ pdn_type :=
GTP2C_PDN_IPv4));
f_init();
vc_conn := f_start_handler(refers(f_TC_createSession), pars);
vc_conn.done;
}
-/* create a session, then execute a ping command on the user plane */
+/* create a IPv4 session, then execute a ping command on the user plane */
private function f_TC_createSession_ping4() runs on PGW_Session_CT {
f_s5s8_create_session();
- f_ping4(mp_ping_hostname);
+ f_ping(mp_ping_hostname);
setverdict(pass);
}
testcase TC_createSession_ping4() runs on PGW_Test_CT {
var PGW_Session_CT vc_conn;
- var SessionPars pars := valueof(t_SessionPars('001010123456789'H,
"tun23"));
+ var SessionPars pars := valueof(t_SessionPars('001010123456789'H,
+ "tun23",
+ pdn_type :=
GTP2C_PDN_IPv4));
f_init();
vc_conn := f_start_handler(refers(f_TC_createSession_ping4), pars);
vc_conn.done;
@@ -993,6 +1054,74 @@
}
}
+/* create a IPv6 session, then execute a ping command on the user plane */
+private function f_TC_createSession_ping6() runs on PGW_Session_CT {
+ f_s5s8_create_session();
+ f_ping(mp_ping_hostname6);
+ setverdict(pass);
+}
+testcase TC_createSession_ping6() runs on PGW_Test_CT {
+ var PGW_Session_CT vc_conn;
+ var SessionPars pars := valueof(t_SessionPars('001010123456789'H,
+ "tun23",
+ pdn_type :=
GTP2C_PDN_IPv6));
+ f_init();
+ vc_conn := f_start_handler(refers(f_TC_createSession_ping6), pars);
+ vc_conn.done;
+}
+testcase TC_createSession_ping6_256() runs on PGW_Test_CT {
+ var PGW_Session_CT vc_conn[256];
+ var integer i;
+
+ f_init();
+
+ for (i := 0; i < sizeof(vc_conn); i:=i+1) {
+ var charstring tundev := "ping" & int2str(i);
+ var SessionPars pars := valueof(t_SessionPars(f_gen_imsi(i),
+ tundev,
+ pdn_type := GTP2C_PDN_IPv6));
+ vc_conn[i] := f_start_handler(refers(f_TC_createSession_ping6),
pars);
+ }
+
+ for (i := 0; i < lengthof(vc_conn); i:=i+1) {
+ vc_conn[i].done;
+ }
+}
+
+/* create a IPv4v6 session, then execute a ping command on the user plane */
+private function f_TC_createSession_ping46() runs on PGW_Session_CT {
+ f_s5s8_create_session();
+ f_ping(mp_ping_hostname);
+ f_ping(mp_ping_hostname6);
+ setverdict(pass);
+}
+testcase TC_createSession_ping46() runs on PGW_Test_CT {
+ var PGW_Session_CT vc_conn;
+ var SessionPars pars := valueof(t_SessionPars('001010123456789'H,
+ "tun23",
+ pdn_type :=
GTP2C_PDN_IPv4v6));
+ f_init();
+ vc_conn := f_start_handler(refers(f_TC_createSession_ping46), pars);
+ vc_conn.done;
+}
+testcase TC_createSession_ping46_256() runs on PGW_Test_CT {
+ var PGW_Session_CT vc_conn[256];
+ var integer i;
+
+ f_init();
+
+ for (i := 0; i < sizeof(vc_conn); i:=i+1) {
+ var charstring tundev := "ping" & int2str(i);
+ var SessionPars pars := valueof(t_SessionPars(f_gen_imsi(i),
+ tundev,
+ pdn_type := GTP2C_PDN_IPv4v6));
+ vc_conn[i] :=
f_start_handler(refers(f_TC_createSession_ping46), pars);
+ }
+
+ for (i := 0; i < lengthof(vc_conn); i:=i+1) {
+ vc_conn[i].done;
+ }
+}
/* create a session, then delete it again */
private function f_TC_createSession_deleteSession() runs on PGW_Session_CT {
@@ -1033,7 +1162,7 @@
f_validate_gy_cc_report(g_rx_gy, VALIDITY_TIME, (3..4), 0, 0);
d := activate(as_DIA_Gy_CCR(UPDATE_REQUEST));
- f_ping4(mp_ping_hostname);
+ f_ping(mp_ping_hostname);
/* Let the CCA reach the PGW */
f_sleep(0.5);
deactivate(d);
@@ -1126,6 +1255,10 @@
execute( TC_createSession() );
execute( TC_createSession_ping4() );
execute( TC_createSession_ping4_256() );
+ execute( TC_createSession_ping6() );
+ execute( TC_createSession_ping6_256() );
+ execute( TC_createSession_ping46() );
+ execute( TC_createSession_ping46_256() );
execute( TC_createSession_deleteSession() );
execute( TC_deleteSession_unknown() );
execute( TC_gy_charging_cc_time() );
diff --git a/pgw/expected-results.xml b/pgw/expected-results.xml
index 3945b4d..459e59c 100644
--- a/pgw/expected-results.xml
+++ b/pgw/expected-results.xml
@@ -4,6 +4,10 @@
<testcase classname='PGW_Tests' name='TC_createSession' time='MASKED'/>
<testcase classname='PGW_Tests' name='TC_createSession_ping4' time='MASKED'/>
<testcase classname='PGW_Tests' name='TC_createSession_ping4_256'
time='MASKED'/>
+ <testcase classname='PGW_Tests' name='TC_createSession_ping6' time='MASKED'/>
+ <testcase classname='PGW_Tests' name='TC_createSession_ping6_256'
time='MASKED'/>
+ <testcase classname='PGW_Tests' name='TC_createSession_ping46'
time='MASKED'/>
+ <testcase classname='PGW_Tests' name='TC_createSession_ping46_256'
time='MASKED'/>
<testcase classname='PGW_Tests' name='TC_createSession_deleteSession'
time='MASKED'/>
<testcase classname='PGW_Tests' name='TC_deleteSession_unknown'
time='MASKED'/>
<testcase classname='PGW_Tests' name='TC_gy_charging_cc_time' time='MASKED'/>
diff --git a/pgw/open5gs-smf.yaml b/pgw/open5gs-smf.yaml
index 49ec84b..34aabc3 100644
--- a/pgw/open5gs-smf.yaml
+++ b/pgw/open5gs-smf.yaml
@@ -49,8 +49,8 @@
- subnet: 10.45.0.0/16
gateway: 10.45.0.1
dnn: internet
- - subnet: cafe::/64
- gateway: cafe::1
+ - subnet: 2001:db8:cafe::/48
+ gateway: 2001:db8:cafe::1
dnn: internet
dns:
- 8.8.8.8
diff --git a/pgw/open5gs-upf.yaml b/pgw/open5gs-upf.yaml
index e65914e..39c47d5 100644
--- a/pgw/open5gs-upf.yaml
+++ b/pgw/open5gs-upf.yaml
@@ -22,8 +22,8 @@
gateway: 10.45.0.1
dnn: internet
dev: ogstun46
- - subnet: cafe::/64
- gateway: cafe::1
+ - subnet: 2001:db8:cafe::/48
+ gateway: 2001:db8:cafe::1
dnn: internet
dev: ogstun46
diff --git a/pgw/testenv.sh b/pgw/testenv.sh
index 2abf999..7f155d1 100755
--- a/pgw/testenv.sh
+++ b/pgw/testenv.sh
@@ -46,6 +46,10 @@
sudo ip link set ogstun4 up
sudo ip link set ogstun6 up
sudo ip link set ogstun46 up
+
+ # The IPv4 route is added automatically when setting the interface addr
above:
+ sudo ip route add "10.45.0.0/16" dev "ogstun46" || true
+ sudo ip -6 route add "2001:db8:cafe::/48" dev "ogstun46" || true
}
del_tun() {
--
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Gerrit-MessageType: newchange
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Idf009b9118db8117c547a1bb0f27afdfa3f03924
Gerrit-Change-Number: 42501
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
