jolly has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/33814 )

Change subject: Add LAPDm Bter frames to LAPDm_Types.ttcn and BTS_Tests.ttcn ......................................................................

Add LAPDm Bter frames to LAPDm_Types.ttcn and BTS_Tests.ttcn

The new type LapdmFrameBter and its send and receive template is used to send and receive Bter frames, which has a short L2 header and uses all 23 octets for payload.

Bter frames are DCCH UI frames with SAPI 0 and 23 octets sent on downlink only.

Change-Id: I07a4fd9879dfd9de441c0348a84b7dd5c9864eb4 --- M bts/BTS_Tests.ttcn M library/LAPDm_Types.ttcn 2 files changed, 40 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/14/33814/1

diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn index 2a56a25..37d15b8 100644 --- a/bts/BTS_Tests.ttcn +++ b/bts/BTS_Tests.ttcn @@ -7325,6 +7325,8 @@ lapdm.b4 := dec_LapdmFrameB4(l2); } else if (ischosen(exp.bbis)) { lapdm.bbis := dec_LapdmFrameBbis(l2); + } else if (ischosen(exp.bter)) { + lapdm.bter := dec_LapdmFrameBter(l2); } log("Rx LAPDm ", lapdm); if (match(lapdm, exp)) { diff --git a/library/LAPDm_Types.ttcn b/library/LAPDm_Types.ttcn index baa2b7e..4d02863 100644 --- a/library/LAPDm_Types.ttcn +++ b/library/LAPDm_Types.ttcn @@ -211,10 +211,20 @@ external function dec_LapdmFrameBbis(in octetstring stream) return LapdmFrameBbis with { extension "prototype(convert) decode(RAW)" };

+ type record LapdmFrameBter { + octetstring payload + } with { variant "" }; + + external function enc_LapdmFrameBter(in LapdmFrameBter si) return octetstring + with { extension "prototype(convert) encode(RAW)" }; + external function dec_LapdmFrameBter(in octetstring stream) return LapdmFrameBter + with { extension "prototype(convert) decode(RAW)" }; + type union LapdmFrame { LapdmFrameAB ab, LapdmFrameBbis bbis, - LapdmFrameB4 b4 + LapdmFrameB4 b4, + LapdmFrameBter bter } with { variant "" };

external function enc_LapdmFrame(in LapdmFrame si) return octetstring @@ -361,6 +371,17 @@ } }

+ template LapdmFrame ts_LAPDm_Bter_UI(octetstring l3) := { + bter := { + payload := l3 + } + } + template LapdmFrame tr_LAPDm_Bter_UI(template octetstring l3) := { + bter := { + payload := l3 + } + } + template LapdmFrame tr_LAPDm_I(template LapdmSapi sapi, template boolean c_r, template boolean p, template uint3_t nr, template uint3_t ns, template octetstring l3,