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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has uploaded this change for review. ( https://gerrit.osmocom.org/9630 Change subject: bsc: Add TC_{early,late}_conn_fail() ...................................................................... bsc: Add TC_{early,late}_conn_fail() Those test cases simulate a BTS-originated RLL CONN FAIL IND at "unusual" time: a) before we actually establish any RLL b) after / while we're tearing down the RLL This is triggering an osmo-bsc segfault, see OS#3182. Change-Id: I324c410d7565c189dbc91df577d92b87c036732c Related: OS#3182 --- M bsc/BSC_Tests.ttcn 1 file changed, 61 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/30/9630/1 diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn index a5509fd..59aab02 100644 --- a/bsc/BSC_Tests.ttcn +++ b/bsc/BSC_Tests.ttcn @@ -739,6 +739,62 @@ setverdict(pass); } +/* Test behavior of early CONN FAIL IND from BTS (before EST IND!) */ +/* See also https://www.osmocom.org/issues/3182 */ +testcase TC_early_conn_fail() runs on test_CT { + var RSL_Message rx_rsl; + var DchanTuple dt; + + f_init(1); + + /* BTS->BSC: Send CHAN RQD and wait for allocation; acknowledge it */ + dt.rsl_chan_nr := f_chreq_act_ack(f_rnd_octstring(1), 23); + + /* BTS->BSC: simulate CONN FAIL IND */ + f_ipa_tx(0, ts_RSL_CONN_FAIL_IND(dt.rsl_chan_nr, RSL_ERR_RADIO_LINK_FAIL)); + + /* BTS->BSC: Expect RF channel release from BSC on Abis */ + rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL)); + + /* BTS<-BSC: respond with CHAN REL ACK */ + f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(dt.rsl_chan_nr)); + + setverdict(pass); +} + +/* Test behavior of late CONN FAIL IND from BTS (ater REL IND!) */ +/* See also https://www.osmocom.org/issues/3182 */ +testcase TC_late_conn_fail() runs on test_CT { + var RSL_Message rx_rsl; + var DchanTuple dt; + + f_init(1); + + dt := f_est_dchan('23'O, 23, '00010203040506'O); + + /* BSC<-MSC: Instruct BSC to clear connection */ + BSSAP.send(ts_BSSAP_DATA_req(dt.sccp_conn_id, ts_BSSMAP_ClearCommand(0))); + + /* BTS->BSC: expect BSC to deactivate SACCH */ + rx_rsl := f_exp_ipa_rx(0, tr_RSL_DEACT_SACCH(dt.rsl_chan_nr)); + + /* BTS->BSC: simulate a late CONN FAIL IND from BTS */ + f_ipa_tx(0, ts_RSL_CONN_FAIL_IND(dt.rsl_chan_nr, RSL_ERR_RADIO_LINK_FAIL)); + + /* BTS<-BSC: Expect RF channel release from BSC on Abis */ + rx_rsl := f_exp_ipa_rx(0, tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL)); + /* BTS->BSC: respond with CHAN REL ACK */ + f_ipa_tx(0, ts_RSL_RF_CHAN_REL_ACK(dt.rsl_chan_nr)); + + /* BSC->MSC: expect Clear Complete from BSC */ + BSSAP.receive(tr_BSSAP_DATA_ind(dt.sccp_conn_id, tr_BSSMAP_ClearComplete)); + + /* BSC<-MSC: MSC disconnects as requested. */ + BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0)); + + setverdict(pass); +} + function f_expect_chan_rel(integer bts_nr, RslChannelNr rsl_chan_nr, boolean flush := true, boolean handle_rll_rel := true) runs on test_CT { @@ -2515,6 +2571,11 @@ execute( TC_dyn_pdch_ipa_act_nack() ); execute( TC_dyn_pdch_osmo_act_deact() ); execute( TC_dyn_pdch_osmo_act_nack() ); + + /* at bottom as they might crash OsmoBSC before OS#3182 is fixed */ + execute( TC_early_conn_fail() ); + execute( TC_late_conn_fail() ); + } } -- To view, visit https://gerrit.osmocom.org/9630 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-ttcn3-hacks Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I324c410d7565c189dbc91df577d92b87c036732c Gerrit-Change-Number: 9630 Gerrit-PatchSet: 1 Gerrit-Owner: Harald Welte <laforge at gnumonks.org> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20180614/754eab2a/attachment.htm>