diff options
author | Pau Espin Pedrol <pespin@sysmocom.de> | 2022-02-14 18:57:43 +0100 |
---|---|---|
committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2022-02-16 17:21:49 +0100 |
commit | cd326c5a597d4b9bd44bf76e0521b0797116d884 (patch) | |
tree | c8883f66d03d2badcb982aed86fc7e301e2298b4 /ggsn_tests | |
parent | 3ede4f65d7a6ab9163c032fe7af7f2f127b2a0ee (diff) |
ggsn: Introduce test TC_pdp4_act_update_teid/teic
This test validates that changing the local TEID through UpdatePDPContext
is correctly followed by the GGSN.
Change-Id: Ic6af25866bf7efc2cabf029e49abaf15d5857592
Diffstat (limited to 'ggsn_tests')
-rw-r--r-- | ggsn_tests/GGSN_Tests.ttcn | 94 |
1 files changed, 93 insertions, 1 deletions
diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn index 8f4e7094..48e87bf9 100644 --- a/ggsn_tests/GGSN_Tests.ttcn +++ b/ggsn_tests/GGSN_Tests.ttcn @@ -376,6 +376,22 @@ module GGSN_Tests { } } + function f_handle_update_req(inout PdpContext ctx, in Gtp1cUnitdata ud, in OCT1 exp_cause := '80'O) runs on GT_CT { + var UpdatePDPContextResponseGGSN upr := ud.gtpc.gtpc_pdu.updatePDPContextResponse.updatePDPContextResponseGGSN; + if (exp_cause == '80'O and exp_cause == upr.cause.causevalue) { + ctx.teid_remote := upr.teidDataI.teidDataI; + ctx.teic_remote := upr.teidControlPlane.teidControlPlane; + if (ispresent(upr.protConfigOptions)) { + ctx.pco_neg := upr.protConfigOptions; + } + setverdict(pass); + } else if (exp_cause != '80'O and exp_cause == upr.cause.causevalue) { + setverdict(pass); + } else { + setverdict(fail); + } + } + private altstep as_DIA_CCR(DCC_NONE_CC_Request_Type req_type) runs on GT_CT { var PDU_DIAMETER rx_dia; [] DIAMETER_UNIT.receive(tr_DIA_CCR(req_type := req_type)) -> value rx_dia { @@ -481,6 +497,34 @@ module GGSN_Tests { deactivate(d); T_default.stop; } + + /* send a Update PdP Context Request, expect Response */ + function f_pdp_ctx_update(inout PdpContext ctx, OCT1 exp_cause := '80'O, template (omit) OCT4 new_teid := omit, template (omit) OCT4 new_teic := omit) runs on GT_CT { + var Gtp1cUnitdata ud; + var default d; + + if (not istemplatekind(new_teid, "omit")) { + ctx.teid := valueof(new_teid); + } + if (not istemplatekind(new_teic, "omit")) { + ctx.teic := valueof(new_teic); + } + + log("sending UpdatePDP"); + f_send_gtpc(ts_GTPC_UpdatePDP(g_peer_c, ctx.teic_remote, g_c_seq_nr, ctx.imsi, g_restart_ctr, + ctx.teid, ctx.teic, ctx.nsapi, g_sgsn_ip_c, g_sgsn_ip_u, + ctx.pco_req, ctx.ratType, ctx.uli)); + T_default.start; + d := activate(pingpong()); + alt { + [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, updatePDPContextResponse, ctx.teic)) -> value ud { + f_handle_update_req(ctx, ud, exp_cause); + } + } + deactivate(d); + T_default.stop; + } + /* IPv6 router solicitation fe80::2 -> ff02::2 from 02:88:b5:1f:25:59 */ const octetstring c_router_solicit := '6000000000103afffe800000000000000000000000000002ff02000000000000000000000000000285009f2b0000000001010288b51f2559'O; /* IPv6 neighbor solicitation fe80::2 -> ff02::1:ff00:2 from 02:88:b5:1f:25:59 */ @@ -810,7 +854,7 @@ module GGSN_Tests { var Gtp1uUnitdata ud; T_default.start; alt { - [] GTPU.receive(tr_GTPU_GPDU(g_peer_u, ?)) -> value ud { + [] GTPU.receive(tr_GTPU_GPDU(g_peer_u, ctx.teid)) -> value ud { if (f_verify_gtpu_txseq(ud.gtpu, use_gtpu_txseq) == false) { setverdict(fail); stop; @@ -825,6 +869,10 @@ module GGSN_Tests { repeat; } } + [] GTPU.receive(tr_GTPU_GPDU(g_peer_u, ?)) -> value ud { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, + "Received wrong local TEID"); + } [] GTPU.receive { setverdict(fail); } [] T_default.timeout { setverdict(fail); } } @@ -1384,6 +1432,48 @@ module GGSN_Tests { f_pdp_ctx_del(ctx, '1'B); } + /* Validate that SUT updates remote TEIC when requested through UpdatePDPContextRequest */ + testcase TC_pdp4_act_update_teic() runs on GT_CT { + f_init(); + var PdpContext ctx := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn))); + ctx.pco_req := valueof(ts_PCO_IPv4_DNS_CONT); + f_pdp_ctx_act(ctx); + + /* UpdatePDPContestRequest changing the local TEIC */ + var OCT4 new_teic := ctx.teic; + new_teic[3] := new_teic[3] xor4b '11'O; + f_pdp_ctx_update(ctx, new_teic := new_teic); + + f_pdp_ctx_del(ctx, '1'B); + } + + /* Validate that SUT updates remote TEID when requested through UpdatePDPContextRequest */ + testcase TC_pdp4_act_update_teid() runs on GT_CT { + f_init(); + var PdpContext ctx := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn))); + ctx.pco_req := valueof(ts_PCO_IPv4_DNS_CONT); + f_pdp_ctx_act(ctx); + + f_PCO_ensure_no_duplicates(ctx.pco_neg); + var OCT4 dns1_addr := f_PCO_extract_proto(ctx.pco_neg, '000d'O); + var OCT4 saddr := ctx.eua.endUserAddress.endUserAddressIPv4.ipv4_address; + + /* Data is sent (back) to the local TEID established during CreatePDPContext */ + f_send_gtpu(ctx, f_gen_icmpv4_echo(saddr, dns1_addr)); + f_wait_icmp4_echo_reply(ctx); + + /* UpdatePDPContestRequest changing the local TEID */ + var OCT4 new_teid := ctx.teid; + new_teid[3] := new_teid[3] xor4b '11'O; + f_pdp_ctx_update(ctx, new_teid := new_teid); + + /* Check if we can send data after updating the PDP context. Answer should be sent to the new TEID */ + f_send_gtpu(ctx, f_gen_icmpv4_echo(saddr, dns1_addr)); + f_wait_icmp4_echo_reply(ctx); + + f_pdp_ctx_del(ctx, '1'B); + } + /* Test IPv4v6 context activation for dynamic IPv4v6 EUA without DNS request */ testcase TC_pdp46_act_deact() runs on GT_CT { f_init(); @@ -1717,6 +1807,8 @@ module GGSN_Tests { execute(TC_pdp4_clients_interact_without_txseq()); execute(TC_pdp4_act_deact_with_single_dns()); execute(TC_pdp4_act_deact_with_separate_dns()); + execute(TC_pdp4_act_update_teic()); + execute(TC_pdp4_act_update_teid()); execute(TC_pdp6_act_deact()); execute(TC_pdp6_act_deact_pcodns()); |