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-rw-r--r--tests/tbf/TbfTest.cpp70
-rw-r--r--tests/tbf/TbfTest.err60
-rw-r--r--tests/tbf/TbfTest.ok2
3 files changed, 132 insertions, 0 deletions
diff --git a/tests/tbf/TbfTest.cpp b/tests/tbf/TbfTest.cpp
index c7393f4a..5bc492ec 100644
--- a/tests/tbf/TbfTest.cpp
+++ b/tests/tbf/TbfTest.cpp
@@ -427,6 +427,75 @@ static void test_tbf_exhaustion()
gprs_bssgp_destroy();
}
+static void test_tbf_dl_llc_loss()
+{
+ BTS the_bts;
+ gprs_rlcmac_bts *bts;
+ uint8_t ts_no = 4;
+ uint8_t ms_class = 45;
+ int rc = 0;
+ uint32_t tlli = 0xc0123456;
+ const char *imsi = "001001000123456";
+ unsigned delay_csec = 1000;
+ GprsMs *ms;
+
+ uint8_t buf[19];
+
+ printf("=== start %s ===\n", __func__);
+
+ bts = the_bts.bts_data();
+ setup_bts(&the_bts, ts_no);
+ bts->ms_idle_sec = 10; /* keep the MS object */
+
+ gprs_bssgp_create_and_connect(bts, 33001, 0, 33001,
+ 1234, 1234, 1234, 1, 1, 0, 0, 0);
+
+ /* Handle LLC frame 1 */
+ memset(buf, 1, sizeof(buf));
+ rc = gprs_rlcmac_dl_tbf::handle(bts, tlli, 0, imsi, ms_class,
+ delay_csec, buf, sizeof(buf));
+ OSMO_ASSERT(rc >= 0);
+
+ ms = the_bts.ms_store().get_ms(0, 0, imsi);
+ OSMO_ASSERT(ms != NULL);
+ OSMO_ASSERT(ms->dl_tbf() != NULL);
+
+ /* Handle LLC frame 2 */
+ memset(buf, 2, sizeof(buf));
+ rc = gprs_rlcmac_dl_tbf::handle(bts, tlli, 0, imsi, ms_class,
+ delay_csec, buf, sizeof(buf));
+ OSMO_ASSERT(rc >= 0);
+
+ /* TBF establishment fails (timeout) */
+ tbf_free(ms->dl_tbf());
+
+ /* Handle LLC frame 3 */
+ memset(buf, 3, sizeof(buf));
+ rc = gprs_rlcmac_dl_tbf::handle(bts, tlli, 0, imsi, ms_class,
+ delay_csec, buf, sizeof(buf));
+ OSMO_ASSERT(rc >= 0);
+
+ OSMO_ASSERT(ms->dl_tbf() != NULL);
+
+ /* Get first BSN */
+ struct msgb *msg;
+ int fn = 0;
+ uint8_t expected_data = 1;
+
+ while (ms->dl_tbf()->have_data()) {
+ msg = ms->dl_tbf()->create_dl_acked_block(fn += 4, 7);
+ fprintf(stderr, "MSG = %s\n", msgb_hexdump(msg));
+ OSMO_ASSERT(msgb_length(msg) == 23);
+ /* OSMO_ASSERT(msgb_data(msg)[10] == expected_data); */
+ expected_data += 1;
+ }
+ /* OSMO_ASSERT(expected_data-1 == 3); */
+
+ printf("=== end %s ===\n", __func__);
+
+ gprs_bssgp_destroy();
+}
+
static void test_tbf_single_phase()
{
BTS the_bts;
@@ -605,6 +674,7 @@ int main(int argc, char **argv)
test_tbf_delayed_release();
test_tbf_imsi();
test_tbf_exhaustion();
+ test_tbf_dl_llc_loss();
test_tbf_single_phase();
test_tbf_two_phase();
diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err
index 65387241..fe1b6adf 100644
--- a/tests/tbf/TbfTest.err
+++ b/tests/tbf/TbfTest.err
@@ -1108,6 +1108,66 @@ Searching for first unallocated TFI: TRX=0 first TS=4
No TFI available.
No PDCH resource
BSSGP (BVCI=1234) Tx LLC-DISCARDED TLLI=0xc0000020, FRAMES=1, OCTETS=256
+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
+Creating MS object, TLLI = 0x00000000
+The MS object cannot fully confirm an unexpected TLLI: 0xc0123456, partly confirmed
+Modifying MS object, TLLI = 0xc0123456, MS class 0 -> 45
+Attaching TBF to MS object, TLLI = 0xc0123456, TBF = TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL)
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) [DOWNLINK] START
+Modifying MS object, TLLI = 0xc0123456, IMSI '' -> '001001000123456'
+Send dowlink assignment for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) on PCH, no TBF exist (IMSI=001001000123456)
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
+TX: START TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
+Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=34 35 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 01 23 45 68 00 23 2b 2b 2b 2b
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) append
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) free
+Detaching TBF from MS object, TLLI = 0xc0123456, TBF = TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)
+********** TBF ends here **********
+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
+Attaching TBF to MS object, TLLI = 0xc0123456, TBF = TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL)
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) [DOWNLINK] START
+Send dowlink assignment for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) on PCH, no TBF exist (IMSI=001001000123456)
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=NULL) changes state from NULL to ASSIGN
+TX: START TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) Immediate Assignment Downlink (PCH)
+Sending data request: trx=0 ts=0 sapi=3 arfcn=0 fn=0 block=0 data=34 35 36 2d 06 3f 30 0c 00 00 7d 80 00 00 00 dc 01 23 45 68 00 23 2b 2b 2b 2b
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) downlink (V(A)==0 .. V(S)==0)
+- Sending new block at BSN 0, CS=1
+-- Chunk with length 19 is less than remaining space (20): add length header to to delimit LLC frame
+Complete DL frame for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)len=19
+- Dequeue next LLC for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) (len=19)
+-- No space left, so we are done.
+data block: 07 00 00 4d 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03
+MSG = 07 00 00 4d 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) downlink (V(A)==0 .. V(S)==1)
+- Sending new block at BSN 1, CS=1
+-- Chunk with length 19 is less than remaining space (20): add length header to to delimit LLC frame
+Complete DL frame for TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN)len=19
+-- Final block, so we done.
+TBF(TFI=0 TLLI=0xc0123456 DIR=DL STATE=ASSIGN) changes state from ASSIGN to FINISHED
+data block: 07 01 02 4d 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+- Scheduling Ack/Nack polling, because is was requested explicitly (e.g. first final block sent).
+Polling cannot be sheduled in this TS 7, waiting for TS 4
+MSG = 07 01 02 4d 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
Searching for first unallocated TFI: TRX=0 first TS=7
Found TFI=0.
MS requests UL TBF on RACH, so we provide one:
diff --git a/tests/tbf/TbfTest.ok b/tests/tbf/TbfTest.ok
index 831a3dd3..8c2c0e77 100644
--- a/tests/tbf/TbfTest.ok
+++ b/tests/tbf/TbfTest.ok
@@ -4,6 +4,8 @@
=== end test_tbf_imsi ===
=== start test_tbf_exhaustion ===
=== end test_tbf_exhaustion ===
+=== start test_tbf_dl_llc_loss ===
+=== end test_tbf_dl_llc_loss ===
=== start test_tbf_single_phase ===
=== end test_tbf_single_phase ===
=== start test_tbf_two_phase ===
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 22:30:22 +0000