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osmo-ttcn3-hacks
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ggsn: Add timeout to TC_pdp_act_restart_ctr_echo 

Change-Id: Id9d71504b2da1438239934bfe21934d365b6e333
This commit is contained in:
Pau Espin 2022-02-17 19:49:13 +01:00 committed by pespin
parent 7af5a2a5c1
commit 0511802ebc
1 changed files with 29 additions and 12 deletions
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41
ggsn_tests/GGSN_Tests.ttcn
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@ -122,7 +122,7 @@ module GGSN_Tests {
port TELNETasp_PT GGSNVTY;
var boolean use_gtpu_txseq := false;
var boolean g_use_echo := false;
var integer g_use_echo_intval := 0; /* 0 = disabled */
/* emulated PCRF, used with m_ggsn_impl = GGSN_IMPL_OPEN5GS */
var DIAMETER_Emulation_CT vc_DIAMETER;
@ -180,11 +180,11 @@ module GGSN_Tests {
return true;
}
private function f_vty_enable_echo_interval(boolean enable) runs on GT_CT {
private function f_vty_enable_echo_interval(integer intval_sec) runs on GT_CT {
f_vty_enter_config(GGSNVTY);
f_vty_transceive(GGSNVTY, "ggsn ggsn0");
if (enable) {
f_vty_transceive(GGSNVTY, "echo-interval 5");
if (intval_sec > 0) {
f_vty_transceive(GGSNVTY, "echo-interval " & int2str(intval_sec));
} else {
f_vty_transceive(GGSNVTY, "no echo-interval");
}
@ -253,7 +253,7 @@ module GGSN_Tests {
if (m_ggsn_impl == GGSN_IMPL_OSMOCOM) {
f_init_vty();
f_vty_set_gpdu_txseq(use_gtpu_txseq);
f_vty_enable_echo_interval(g_use_echo);
f_vty_enable_echo_interval(g_use_echo_intval);
} else if (m_ggsn_impl == GGSN_IMPL_OPEN5GS) {
f_init_diameter(testcasename());
}
@ -263,12 +263,12 @@ module GGSN_Tests {
private altstep pingpong() runs on GT_CT {
var Gtp1cUnitdata ud;
var Gtp1uUnitdata udu;
[g_use_echo] GTPC.receive(tr_GTPC_PING(?)) -> value ud {
[g_use_echo_intval > 0] GTPC.receive(tr_GTPC_PING(?)) -> value ud {
var uint16_t seq := oct2int(ud.gtpc.opt_part.sequenceNumber);
GTPC.send(ts_GTPC_PONG(ud.peer, seq, g_restart_ctr));
repeat;
};
[not g_use_echo] GTPC.receive(tr_GTPC_PING(?)) {
[g_use_echo_intval == 0] GTPC.receive(tr_GTPC_PING(?)) {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
"GTP Echo Req rceived but not enabled in VTY");
};
@ -1781,25 +1781,42 @@ module GGSN_Tests {
/* Activate PDP context + trigger Recovery procedure through EchoResp */
testcase TC_pdp_act_restart_ctr_echo() runs on GT_CT {
var Gtp1cUnitdata ud;
g_use_echo := true;
g_use_echo_intval := 5;
timer T_echo;
f_init();
var PdpContext ctx := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn)));
f_pdp_ctx_act(ctx);
/* Wait to receive echo request and send initial Restart counter */
GTPC.receive(tr_GTPC_PING(?)) -> value ud {
T_echo.start(int2float(g_use_echo_intval) + 1.0);
alt {
[] GTPC.receive(tr_GTPC_PING(?)) -> value ud {
var uint16_t seq := oct2int(ud.gtpc.opt_part.sequenceNumber);
GTPC.send(ts_GTPC_PONG(ud.peer, seq, g_restart_ctr));
};
}
[] T_echo.timeout {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
"Timeout waiting for ping");
}
}
T_echo.stop;
/* Wait to receive second echo request and send incremented Restart
counter. This will fake a restarted SGSN, and pdp ctx allocated
should be released by GGSN */
g_restart_ctr := int2oct((oct2int(g_restart_ctr) + 1) mod 256, 1);
GTPC.receive(tr_GTPC_PING(?)) -> value ud {
T_echo.start(int2float(g_use_echo_intval) + 1.0);
alt {
[] GTPC.receive(tr_GTPC_PING(?)) -> value ud {
var uint16_t seq := oct2int(ud.gtpc.opt_part.sequenceNumber);
GTPC.send(ts_GTPC_PONG(ud.peer, seq, g_restart_ctr));
};
}
[] T_echo.timeout {
Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
"Timeout waiting for ping");
}
}
T_echo.stop;
f_pdp_ctx_exp_del_req(ctx, omit, true);
setverdict(pass);
}