diff options
author | Daniel Willmann <dwillmann@sysmocom.de> | 2014-08-15 18:19:41 +0200 |
---|---|---|
committer | Daniel Willmann <daniel@totalueberwachung.de> | 2014-09-10 19:19:58 +0200 |
commit | 510d7d36ed1a040679f371976fa2c326c4b478bf (patch) | |
tree | db5d79f09c4e779e2abb8065d7bec7fdbf73f6a6 /tests/tbf | |
parent | e481815583d9f7b93e9e0d76b1e29b5444f4a732 (diff) |
tests/tbf: Test for final ack issue
Ticket: SYS#382
Sponsored-by: On-Waves ehf
Diffstat (limited to 'tests/tbf')
-rw-r--r-- | tests/tbf/TbfTest.cpp | 79 | ||||
-rw-r--r-- | tests/tbf/TbfTest.err | 63 |
2 files changed, 142 insertions, 0 deletions
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp index 911092a6..f4b2e01b 100644 --- a/tests/tbf/TbfTest.cpp +++ b/tests/tbf/TbfTest.cpp @@ -78,6 +78,84 @@ static void test_tbf_tlli_update() OSMO_ASSERT(the_bts.timing_advance()->recall(0x4232) == 4); } +static uint8_t llc_data[200]; + +int pcu_sock_send(struct msgb *msg) +{ + return 0; +} + +static void test_tbf_final_ack() +{ + BTS the_bts; + gprs_rlcmac_bts *bts; + gprs_rlcmac_trx *trx; + gprs_rlcmac_pdch * pdch; + int tfi, i; + uint8_t ts_no, trx_no; + uint8_t ms_class = 45; + uint32_t fn; + + uint8_t rbb[64/8]; + + struct msgb *dl_msg; + gprs_rlcmac_dl_tbf *dl_tbf; + gprs_rlcmac_tbf *new_tbf; + + bts = the_bts.bts_data(); + bts->alloc_algorithm = alloc_algorithm_a; + trx = &bts->trx[0]; + + ts_no = 4; + trx->pdch[ts_no].enable(); + pdch = &trx->pdch[ts_no]; + + tfi = the_bts.tfi_find_free(GPRS_RLCMAC_DL_TBF, &trx_no, -1); + OSMO_ASSERT(tfi >= 0); + dl_tbf = tbf_alloc_dl_tbf(bts, NULL, tfi, trx_no, ms_class, 1); + OSMO_ASSERT(dl_tbf); + + /* "Establish" the DL TBF */ + dl_tbf->dl_ass_state = GPRS_RLCMAC_DL_ASS_SEND_ASS; + dl_tbf->set_state(GPRS_RLCMAC_FLOW); + dl_tbf->m_wait_confirm = 0; + dl_tbf->set_new_tbf(dl_tbf); + + for (i = 0; i < sizeof(llc_data); i++) + llc_data[i] = i%256; + + /* Schedule two blocks */ + dl_msg = msgb_alloc(sizeof(llc_data), "llc data"); + memcpy(msgb_put(dl_msg, sizeof(llc_data)), llc_data, sizeof(llc_data)); + dl_tbf->m_llc.enqueue(dl_msg); + + dl_msg = msgb_alloc(sizeof(llc_data), "llc data"); + memcpy(msgb_put(dl_msg, sizeof(llc_data)), llc_data, sizeof(llc_data)); + dl_tbf->m_llc.enqueue(dl_msg); + + + /* FIXME: Need correct frame number here? */ + fn = 0; + for (; fn < 3; fn++) { + /* Request to send one block */ + gprs_rlcmac_rcv_rts_block(bts, trx_no, ts_no, 0, fn, 0); + } + + /* Queue a final ACK */ + memset(rbb, 0, sizeof(rbb)); + /* Receive a final ACK */ + dl_tbf->rcvd_dl_ack(1, 1, rbb); + + /* Clean up and ensure tbfs are in the correct state */ + OSMO_ASSERT(dl_tbf->state_is(GPRS_RLCMAC_WAIT_RELEASE)); + new_tbf = dl_tbf->new_tbf(); + OSMO_ASSERT(new_tbf != dl_tbf); + OSMO_ASSERT(new_tbf->tfi() == 1); + dl_tbf->dl_ass_state = GPRS_RLCMAC_DL_ASS_NONE; + tbf_free(dl_tbf); + tbf_free(new_tbf); +} + static const struct log_info_cat default_categories[] = { {"DCSN1", "\033[1;31m", "Concrete Syntax Notation One (CSN1)", LOGL_INFO, 0}, {"DL1IF", "\033[1;32m", "GPRS PCU L1 interface (L1IF)", LOGL_DEBUG, 1}, @@ -115,6 +193,7 @@ int main(int argc, char **argv) log_set_print_filename(osmo_stderr_target, 0); test_tbf_tlli_update(); + test_tbf_final_ack(); return EXIT_SUCCESS; } diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err index d9757439..34663703 100644 --- a/tests/tbf/TbfTest.err +++ b/tests/tbf/TbfTest.err @@ -15,3 +15,66 @@ Slot Allocation (Algorithm A) for class 0 - Setting Control TS 2 TBF(TFI=0 TLLI=0x00000000 DIR=UL STATE=NULL) changing tlli from TLLI=0x00000000 TLLI=0x00002342 ul_changed=0 TBF(TFI=0 TLLI=0x00002342 DIR=DL STATE=NULL) changing tlli from TLLI=0x00002342 TLLI=0x00004232 ul_changed=1 +Searching for first unallocated TFI: TRX=0 first TS=4 + Found TFI=0. +********** TBF starts here ********** +Allocating DL TBF: TFI=0 TRX=0 MS_CLASS=45 +Slot Allocation (Algorithm A) for class 45 +- Skipping TS 0, because not enabled +- Skipping TS 1, because not enabled +- Skipping TS 2, because not enabled +- Skipping TS 3, because not enabled +- Assign downlink TS=4 +- Setting Control TS 4 +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=NULL) changes state from NULL to FLOW +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) start Packet Downlink Assignment (PACCH) ++++++++++++++++++++++++++ TX : Packet Downlink Assignment +++++++++++++++++++++++++ +------------------------- TX : Packet Downlink Assignment ------------------------- +Scheduling control message at RTS for TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) (TRX=0, TS=4) +Sending data request: trx=0 ts=4 sapi=5 arfcn=0 fn=0 block=0 data=4f 08 20 00 44 02 00 02 08 04 00 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b 2b +Scheduling data message at RTS for DL TFI=0 (TRX=0, TS=4) +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) downlink (V(A)==0 .. V(S)==0) +- Sending new block at BSN 0 +-- Chunk with length 0 is less than remaining space (20): add length header to to delimit LLC frame +Complete DL frame for TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW)len=0 +- Dequeue next LLC for TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) (len=168) +-- Chunk with length 168 larger than space (19) left in block: copy only remaining space, and we are done +data block: 07 00 00 03 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 +Sending data request: trx=0 ts=4 sapi=5 arfcn=0 fn=1 block=0 data=07 00 00 03 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 +Scheduling data message at RTS for DL TFI=0 (TRX=0, TS=4) +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) downlink (V(A)==0 .. V(S)==1) +- Sending new block at BSN 1 +-- Chunk with length 149 larger than space (20) left in block: copy only remaining space, and we are done +data block: 07 00 03 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 +Sending data request: trx=0 ts=4 sapi=5 arfcn=0 fn=2 block=0 data=07 00 03 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 44 45 46 +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) downlink acknowledge +- Final ACK received. +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=FLOW) changes state from FLOW to WAIT RELEASE +Searching for first unallocated TFI: TRX=0 first TS=4 + Found TFI=1. +********** TBF starts here ********** +Allocating DL TBF: TFI=1 TRX=0 MS_CLASS=45 +Slot Allocation (Algorithm A) for class 45 +- Skipping TS 0, because not enabled +- Skipping TS 1, because not enabled +- Skipping TS 2, because not enabled +- Skipping TS 3, because not enabled +- Assign downlink TS=4 +- Setting Control TS 4 +********** TBF update ********** +Slot Allocation (Algorithm A) for class 45 +- Skipping TS 0, because not enabled +- Skipping TS 1, because not enabled +- Skipping TS 2, because not enabled +- Skipping TS 3, because not enabled +- Assign downlink TS=4 +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=WAIT RELEASE) Trigger dowlink assignment on PACCH, because another LLC PDU has arrived in between +Send dowlink assignment on PACCH, because TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=WAIT RELEASE) exists +TBF(TFI=1 TLLI=0x00000000 DIR=DL STATE=NULL) changes state from NULL to ASSIGN +TBF(TFI=1 TLLI=0x00000000 DIR=DL STATE=ASSIGN) starting timer 0. +DL packet loss of IMSI= / TLLI=0x00000000: 0% +TBF(TFI=0 TLLI=0x00000000 DIR=DL STATE=WAIT RELEASE) free +********** TBF ends here ********** +TBF(TFI=1 TLLI=0x00000000 DIR=DL STATE=ASSIGN) free +TBF(TFI=1 TLLI=0x00000000 DIR=DL STATE=ASSIGN) stopping timer 0. +********** TBF ends here ********** |