Change in osmo-bsc[pespin/release-1.4.1]: handover_fsm: copy old S15_S0 to new lchan

Pau Espin Pedrol gerrit-no-reply at lists.osmocom.org
Wed May 8 11:38:30 UTC 2019


Pau Espin Pedrol has uploaded this change for review. ( https://gerrit.osmocom.org/13909


Change subject: handover_fsm: copy old S15_S0 to new lchan
......................................................................

handover_fsm: copy old S15_S0 to new lchan

When a new lchan is selected during handover, some of the properties of
the old lchan are inherited by the new lchan. At the moment S15-S0 is
not not inherited so that the value for those bits will always be 0x0000
for the new lchan. Since those bits also define the active set AMR codec
the channel activation will fail because 0x0000 is invalid (active set
with zero rates)

Change-Id: Ifd470397e99985394634da1bb13ccfc5041984d2
Related: OS#3503
---
M src/osmo-bsc/handover_fsm.c
M tests/handover/handover_test.c
2 files changed, 4 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/09/13909/1

diff --git a/src/osmo-bsc/handover_fsm.c b/src/osmo-bsc/handover_fsm.c
index 35f2e55..68c3e4a 100644
--- a/src/osmo-bsc/handover_fsm.c
+++ b/src/osmo-bsc/handover_fsm.c
@@ -362,6 +362,7 @@
 		.msc_assigned_cic = conn->ho.inter_bsc_in.msc_assigned_cic,
 		.re_use_mgw_endpoint_from_lchan = conn->lchan,
 		.wait_before_switching_rtp = true,
+		.s15_s0 = conn->lchan->activate.info.s15_s0,
 	};
 
 	lchan_activate(ho->new_lchan, &info);
diff --git a/tests/handover/handover_test.c b/tests/handover/handover_test.c
index 6217ca3..cd3b749 100644
--- a/tests/handover/handover_test.c
+++ b/tests/handover/handover_test.c
@@ -276,9 +276,10 @@
 		lchan->tch_mode = GSM48_CMODE_SPEECH_V1;
 	else if (!strcasecmp(codec, "EFR") && full_rate)
 		lchan->tch_mode = GSM48_CMODE_SPEECH_EFR;
-	else if (!strcasecmp(codec, "AMR"))
+	else if (!strcasecmp(codec, "AMR")) {
 		lchan->tch_mode = GSM48_CMODE_SPEECH_AMR;
-	else {
+		lchan->activate.info.s15_s0 = 0x0002;
+	} else {
 		printf("Given codec unknown\n");
 		exit(EXIT_FAILURE);
 	}

-- 
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Gerrit-Project: osmo-bsc
Gerrit-Branch: pespin/release-1.4.1
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ifd470397e99985394634da1bb13ccfc5041984d2
Gerrit-Change-Number: 13909
Gerrit-PatchSet: 1
Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de>
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