| Pau Espin Pedrol | 66c0542 | 2020-10-15 18:07:06 +0200 | [diff] [blame] | 1 | #!/usr/bin/env python3 |
| 2 | from osmo_gsm_tester.testenv import * |
| 3 | |
| 4 | hlr = tenv.hlr() |
| 5 | bts = tenv.bts() |
| 6 | mgw_msc = tenv.mgw() |
| 7 | mgw_bsc = tenv.mgw() |
| 8 | stp = tenv.stp() |
| 9 | msc = tenv.msc(hlr, mgw_msc, stp) |
| 10 | bsc = tenv.bsc(msc, mgw_bsc, stp) |
| 11 | ms_mo = tenv.modem() |
| 12 | ms_mt = tenv.modem() |
| 13 | ms_mo_emerg = tenv.modem() |
| 14 | ms_mt_emerg = tenv.modem() |
| 15 | |
| 16 | # Configure timeslots so that only 1 concurrent call (MO MT, 2 MS) is allowed |
| 17 | bts.set_num_trx(1) |
| 18 | bts.set_trx_phy_channel(0, 0, 'CCCH+SDCCH4') |
| 19 | bts.set_trx_phy_channel(0, 1, 'TCH/F') |
| 20 | bts.set_trx_phy_channel(0, 2, 'TCH/F') |
| 21 | bts.set_trx_phy_channel(0, 3, 'PDCH') |
| 22 | bts.set_trx_phy_channel(0, 4, 'PDCH') |
| 23 | bts.set_trx_phy_channel(0, 5, 'PDCH') |
| 24 | bts.set_trx_phy_channel(0, 6, 'PDCH') |
| 25 | bts.set_trx_phy_channel(0, 7, 'PDCH') |
| 26 | |
| 27 | hlr.start() |
| 28 | stp.start() |
| 29 | |
| 30 | # Set MSC to route emergency call to ms_mt_emerg: |
| 31 | msc.set_emergency_call_msisdn(ms_mt_emerg.msisdn()) |
| 32 | msc.start() |
| 33 | |
| 34 | mgw_msc.start() |
| 35 | mgw_bsc.start() |
| 36 | |
| 37 | bsc.bts_add(bts) |
| 38 | bsc.start() |
| 39 | |
| 40 | bts.start() |
| 41 | wait(bsc.bts_is_connected, bts) |
| 42 | |
| 43 | hlr.subscriber_add(ms_mo) |
| 44 | hlr.subscriber_add(ms_mt) |
| 45 | hlr.subscriber_add(ms_mo_emerg) |
| 46 | hlr.subscriber_add(ms_mt_emerg) |
| 47 | |
| 48 | ms_mo.connect(msc.mcc_mnc()) |
| 49 | ms_mt.connect(msc.mcc_mnc()) |
| 50 | ms_mo_emerg.connect(msc.mcc_mnc()) |
| 51 | ms_mt_emerg.connect(msc.mcc_mnc()) |
| 52 | |
| 53 | ms_mo.log_info() |
| 54 | ms_mt.log_info() |
| 55 | ms_mo_emerg.log_info() |
| 56 | ms_mt_emerg.log_info() |
| 57 | |
| 58 | print('waiting for modems to attach...') |
| 59 | wait(ms_mo.is_registered, msc.mcc_mnc()) |
| 60 | wait(ms_mt.is_registered, msc.mcc_mnc()) |
| 61 | wait(ms_mo_emerg.is_registered, msc.mcc_mnc()) |
| 62 | wait(ms_mt_emerg.is_registered, msc.mcc_mnc()) |
| 63 | wait(msc.subscriber_attached, ms_mo, ms_mt, ms_mo_emerg, ms_mt_emerg) |
| 64 | |
| 65 | # Initiating first call between ms_mo and ms_mt. It should be dropped when later an emergency call comes in |
| 66 | assert len(ms_mo.call_id_list()) == 0 and len(ms_mt.call_id_list()) == 0 |
| 67 | mo_cid = ms_mo.call_dial(ms_mt) |
| 68 | mt_cid = ms_mt.call_wait_incoming(ms_mo) |
| 69 | print('dial success') |
| 70 | assert not ms_mo.call_is_active(mo_cid) and not ms_mt.call_is_active(mt_cid) |
| 71 | ms_mt.call_answer(mt_cid) |
| 72 | assert len(ms_mo.call_id_list()) == 1 and len(ms_mt.call_id_list()) == 1 |
| 73 | |
| 74 | sleep(5) # maintain the normal call active for 5 seconds |
| 75 | |
| 76 | assert len(ms_mo.call_id_list()) == 1 and len(ms_mt.call_id_list()) == 1 |
| 77 | assert len(ms_mo_emerg.call_id_list()) == 0 and len(ms_mt_emerg.call_id_list()) == 0 |
| 78 | # Calling emergency number should be redirected to ms_mt as configured further above: |
| 79 | emerg_numbers = ms_mo_emerg.emergency_numbers() |
| 80 | assert len(emerg_numbers) > 0 |
| 81 | print('dialing Emergency Number %s' % (emerg_numbers[0])) |
| 82 | mo_cid_emerg = ms_mo_emerg.call_dial(emerg_numbers[0]) |
| Pau Espin Pedrol | 17f7c38 | 2020-10-21 17:37:53 +0200 | [diff] [blame] | 83 | # In here we'd ideally wait for incoming call and accept it, but there may be a |
| 84 | # race condition in previous MT TCH not being yet released, so BSC will only be |
| 85 | # able to allocate a SDCCH for not a TCH, and will fail later with Assignment |
| 86 | # Failure: |
| 87 | mt_cid_emerg = ms_mt_emerg.call_wait_dialing(ms_mo_emerg) |
| Pau Espin Pedrol | 66c0542 | 2020-10-15 18:07:06 +0200 | [diff] [blame] | 88 | print('dial success') |
| Pau Espin Pedrol | 17f7c38 | 2020-10-21 17:37:53 +0200 | [diff] [blame] | 89 | assert ms_mo_emerg.call_state(mo_cid_emerg) == 'alerting' |
| Pau Espin Pedrol | 66c0542 | 2020-10-15 18:07:06 +0200 | [diff] [blame] | 90 | # Now the emergency call is ongoing, and the previous one should have been gone: |
| Pau Espin Pedrol | 17f7c38 | 2020-10-21 17:37:53 +0200 | [diff] [blame] | 91 | wait(lambda: len(ms_mo.call_id_list()) == 0 and len(ms_mt.call_id_list()) == 0) |
| 92 | print('preemption worked') |
| Pau Espin Pedrol | 66c0542 | 2020-10-15 18:07:06 +0200 | [diff] [blame] | 93 | |
| 94 | sleep(5) # maintain the emergency call active for 5 seconds |
| Pau Espin Pedrol | 17f7c38 | 2020-10-21 17:37:53 +0200 | [diff] [blame] | 95 | print('done sleepig, success') |