diff options
| -rw-r--r-- | bts/BTS_Tests.ttcn | 173 |
1 files changed, 172 insertions, 1 deletions
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn index f60da241..0506e645 100644 --- a/bts/BTS_Tests.ttcn +++ b/bts/BTS_Tests.ttcn @@ -245,7 +245,7 @@ template (value) SystemInformation ts_SI3_default := { }, cell_sel_par := ts_CellSelPar_default, rach_control := ts_RachCtrl_default, - rest_octets := '2B2B2B2B'O + rest_octets := '2C2B2B2B'O /* GPRS present */ } } } @@ -3983,6 +3983,174 @@ testcase TC_pcu_socket_reconnect() runs on test_CT { Misc_Helpers.f_shutdown(__BFILE__, __LINE__); } +/* Ensure that GPRS capability is not advertised before PCU socket conncet */ +private function f_get_si3(L1CTL_PT pt) runs on test_CT return SystemInformationType3 { + var L1ctlDlMessage l1_dl; + var SystemInformation si; + timer T := 5.0; + T.start; + alt { + [] pt.receive(tr_L1CTL_DATA_IND(t_RslChanNr_BCCH(0), ?)) -> value l1_dl { + /* somehow dec_SystemInformation will try to decode even non-RR as SI */ + if (not (l1_dl.payload.data_ind.payload[1] == '06'O)) { + log("Ignoring non-RR SI ", l1_dl); + repeat; + } + si := dec_SystemInformation(l1_dl.payload.data_ind.payload) + if (not ischosen(si.payload.si3)) { + repeat; + } + } + [] pt.receive { + repeat; + } + [] T.timeout { + setverdict(fail, "Timeout waiting for SI3"); + } + } + return si.payload.si3; +} + +/* CSN.1 L/H logic: is the bit at the current position using "inverted logic" (true) or not? */ +private function f_bitpos_is_inv(integer idx) return boolean { + select (idx mod 8) { + case ((2, 4, 6, 7)) { return true; } /* 1-bits of 0x2B */ + case else { return false; } /* 0-bits of 0x2B */ + } +} +/* determine if the bit at position 'idx' in 'str' is a CSN.1 'H' (true) or 'L' (false) */ +private function f_bit_is_high(bitstring str, integer idx) return boolean { + var boolean invert := f_bitpos_is_inv(idx); + if (invert) { + if (str[idx] == '1'B) { + return false; + } else { + return true; + } + } else { + if (str[idx] == '1'B) { + return true; + } else { + return false; + } + } +} +/* As the TITAN RAW codec cannot expres the CSN.1 L/H concept yet, we have to do this + manually. Let's hope https://www.eclipse.org/forums/index.php/t/1099087/ takes off and + we can replace this piece of code soon ... */ +private function f_si3_has_gprs_indicator(OCT4 si3_restoctets) return boolean { + var bitstring bits := oct2bit(si3_restoctets); + var integer idx := 0; + + if (f_bit_is_high(bits, idx)) { + /* skip Optional selection parameters */ + idx := idx + 16; + } else { + idx := idx + 1; + } + + if (f_bit_is_high(bits, idx)) { + /* skip Optional power offset */ + idx := idx + 3; + } else { + idx := idx + 1; + } + + /* skip SI2ter Indicator */ + idx := idx + 1; + + /* skip Early CM Sending Control */ + idx := idx + 1; + + /* skip Scheduling if and where */ + if (f_bit_is_high(bits, idx)) { + idx := idx + 4; + } else { + idx := idx + 1; + } + + return f_bit_is_high(bits, idx); +} + +testcase TC_pcu_socket_noconnect_nosi3gprs() runs on test_CT { + var SystemInformationType3 si3; + timer T := 5.0; + + /* don't call f_init() as this would connect PCU socket */ + f_init_rsl(testcasename()); + T.start; + alt { + [] RSL_CCHAN.receive(ASP_IPA_Event:{up_down := ASP_IPA_EVENT_UP}); + [] T.timeout { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Timeout waiting for ASP_IPA_EVENT_UP"); + } + } + f_rsl_bcch_fill(RSL_SYSTEM_INFO_3, ts_SI3_default); + + f_init_l1ctl(); + f_l1_tune(L1CTL); + + f_sleep(2.0); + L1CTL.clear; + si3 := f_get_si3(L1CTL); + if (f_si3_has_gprs_indicator(si3.rest_octets)) { + setverdict(fail, "SI3 indicates GPRS even before PCU socket connected"); + } else { + setverdict(pass); + } + Misc_Helpers.f_shutdown(__BFILE__, __LINE__); +} + +/* Ensure that GPRS capability is advertised after PCU socket connect */ +testcase TC_pcu_socket_connect_si3gprs() runs on test_CT { + var SystemInformationType3 si3; + + /* this (among other things) establishes the first connection to the PCUIF socket */ + f_init(); + f_init_l1ctl(); + f_l1_tune(L1CTL); + + f_sleep(2.0); + L1CTL.clear; + si3 := f_get_si3(L1CTL); + if (not f_si3_has_gprs_indicator(si3.rest_octets)) { + setverdict(fail, "SI3 indicates no GPRS despite PCU socket connected"); + } else { + setverdict(pass); + } + Misc_Helpers.f_shutdown(__BFILE__, __LINE__); +} + +/* Ensure that GPRS capability is no longer advertised after PCU socket disconnect */ +testcase TC_pcu_socket_disconnect_nosi3gprs() runs on test_CT { + var SystemInformationType3 si3; + + /* this (among other things) establishes the first connection to the PCUIF socket */ + f_init(); + f_init_l1ctl(); + f_l1_tune(L1CTL); + + f_pcuif_close(PCU, g_pcu_conn_id); + g_pcu_conn_id := -1; + + f_sleep(1.0); + + /* re-connect */ + PCU.clear; + f_init_pcu(PCU, testcasename(), g_pcu_conn_id, g_pcu_last_info); + + f_sleep(2.0); + L1CTL.clear; + si3 := f_get_si3(L1CTL); + if (f_si3_has_gprs_indicator(si3.rest_octets)) { + setverdict(fail, "SI3 indicates GPRS after PCU socket disconnected"); + } else { + setverdict(pass); + } + + Misc_Helpers.f_shutdown(__BFILE__, __LINE__); +} + /*********************************************************************** * Osmocom Style Dynamic Timeslot Support @@ -5360,6 +5528,9 @@ control { execute( TC_pcu_rr_suspend() ); execute( TC_pcu_socket_connect_multi() ); execute( TC_pcu_socket_reconnect() ); + execute( TC_pcu_socket_noconnect_nosi3gprs() ); + execute( TC_pcu_socket_connect_si3gprs() ); + execute( TC_pcu_socket_disconnect_nosi3gprs() ); } else { log("PCU socket path not available, skipping PCU tests"); } |