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ggsn: Introduce test TC_lots_of_concurrent_pdp_ctx 

Change-Id: Iab19963f8e869af8fe0c385abd0fd7bbd9221790
This commit is contained in:
Pau Espin 2022-02-25 11:56:17 +01:00
parent 97c7197bb0
commit 68c2af54e7
1 changed files with 115 additions and 0 deletions
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115
ggsn_tests/GGSN_Tests.ttcn
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@ -1862,6 +1862,119 @@ module GGSN_Tests {
setverdict(pass);
}
/* Test creation, user plane and deletion of big amount (1000) of concurrent PDP context */
testcase TC_lots_of_concurrent_pdp_ctx() runs on GT_CT {
var Gtp1cUnitdata udc;
var Gtp1uUnitdata udu;
const integer num_ctx := 1000;
var PdpContext ctx[num_ctx];
timer T_next := 0.01;
var integer next_req_ctx := 0;
var integer rx_resp_ctx := 0;
var integer rx_pong := 0;
var OCT4 dns1_addr;
var OCT4 saddr;
var integer teic;
var integer idx;
f_init();
for (var integer i := 0; i < num_ctx; i := i + 1) {
ctx[i] := valueof(t_DefinePDP(f_rnd_imsi('26242'H), f_rnd_msisdn('1234'O), c_ApnInternet, valueof(t_EuaIPv4Dyn)));
ctx[i].teic := int2oct(i+1, 4); /* +1: skip TEIC=0 */
ctx[i].teid := int2oct(i+1, 4); /* +1: skip TEID=0 */
ctx[i].pco_req := valueof(ts_PCO_IPv4_DNS_CONT);
}
T_default.start(60.0);
T_next.start;
alt {
[DIAMETER_PROC.checkstate("Connected")] as_DIA_CCR(INITIAL_REQUEST) { repeat; }
[] pingpong();
[] T_next.timeout {
f_send_gtpc(ts_GTPC_CreatePDP(g_peer_c, g_c_seq_nr, ctx[next_req_ctx].imsi, g_restart_ctr,
ctx[next_req_ctx].teid, ctx[next_req_ctx].teic, ctx[next_req_ctx].nsapi,
ctx[next_req_ctx].eua, ctx[next_req_ctx].apn, g_sgsn_ip_c, g_sgsn_ip_u,
ctx[next_req_ctx].msisdn, ctx[next_req_ctx].pco_req, ctx[next_req_ctx].ratType,
ctx[next_req_ctx].uli));
next_req_ctx := next_req_ctx + 1;
if (next_req_ctx < num_ctx) {
T_next.start;
}
repeat;
}
[] GTPC.receive(tr_GTPC_MsgType(g_peer_c, createPDPContextResponse, ?)) -> value udc {
teic := oct2int(udc.gtpc.teid);
if (not match(teic, (1 .. num_ctx))) {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
"Rx Unexpected TEIC");
}
idx := teic - 1;
f_handle_create_req(ctx[idx], udc);
rx_resp_ctx := rx_resp_ctx + 1;
dns1_addr := f_PCO_extract_proto(ctx[idx].pco_neg, '000d'O);
saddr := ctx[idx].eua.endUserAddress.endUserAddressIPv4.ipv4_address;
f_send_gtpu(ctx[idx], f_gen_icmpv4_echo(saddr, dns1_addr));
repeat;
}
[] GTPU.receive(tr_GTPU_GPDU(g_peer_u, ?)) -> value udu {
var octetstring gpdu := udu.gtpu.gtpu_IEs.g_PDU_IEs.data;
var IPv4_packet ip4 := f_IPv4_dec(gpdu);
if (ip4.header.ver != 4) {
repeat;
}
var PDU_ICMP icmp4 := f_dec_PDU_ICMP(ip4.payload);
if (not match(icmp4, (tr_ICMPv4_ERP, tr_ICMPv4_DU))) {
repeat;
}
rx_pong := rx_pong + 1;
if (rx_pong < num_ctx) {
repeat;
}
setverdict(pass);
}
[] GTPC.receive { Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Rx Unexpected GTPC"); }
[] GTPU.receive { Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Rx Unexpected GTPU"); }
}
/* Let's close them now: */
next_req_ctx := 0;
rx_resp_ctx := 0;
T_next.start;
alt {
[DIAMETER_PROC.checkstate("Connected")] as_DIA_CCR(TERMINATION_REQUEST) { repeat; }
[] pingpong();
[] T_next.timeout {
f_send_gtpc(ts_GTPC_DeletePDP(g_peer_c, g_c_seq_nr, ctx[next_req_ctx].teic_remote, ctx[next_req_ctx].nsapi, '1'B));
next_req_ctx := next_req_ctx + 1;
if (next_req_ctx < num_ctx) {
T_next.start;
}
repeat;
}
[] GTPC.receive(tr_GTPC_MsgType(g_peer_c, deletePDPContextResponse, ?)) -> value udc {
teic := oct2int(udc.gtpc.teid);
if (not match(teic, (1 .. num_ctx))) {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
"Rx Unexpected TEIC");
}
rx_resp_ctx := rx_resp_ctx + 1;
if (rx_resp_ctx < num_ctx) {
repeat;
}
setverdict(pass);
}
[] GTPC.receive { Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Rx Unexpected GTPC"); }
[] GTPU.receive { Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Rx Unexpected GTPU"); }
}
T_next.stop;
T_default.stop;
setverdict(pass);
}
control {
execute(TC_pdp4_act_deact());
execute(TC_pdp4_act_deact_ipcp());
@ -1904,5 +2017,7 @@ module GGSN_Tests {
execute(TC_act_deact_retrans_duplicate());
execute(TC_pdp_act_restart_ctr_echo());
execute(TC_lots_of_concurrent_pdp_ctx());
}
}