laforge submitted this change.
osmo-bts-omldummy: properly report NM_ATT_IPACC_SUPP_FEATURES
osmo-bts-omldummy is used as the OML backend in the ttcn3-bsc-test.
The common OML code encodes bts->support.* and trx->support.* fields
verbatim into the IPA Supported Features IE (NM_ATT_IPACC_SUPP_FEATURES)
in Get Attributes Responses. Since bts_model_init() and
bts_model_trx_init() never initialized these fields, they were reported
as all-zeros to osmo-bsc.
osmo-bsc now inspects the supported channel modes before activating a
channel. An all-zero chan_modes value (present but no bits set) causes
osmo-bsc to reject every speech mode, breaking all assignment-related
TTCN-3 test cases.
Initialize ciphers, gprs_codings, freq_bands, chan_types and chan_modes
to sensible values, matching what osmo-bts-virtual does, so that
osmo-bts-omldummy reports its capabilities correctly.
Change-Id: I7fe83f78c829c300e70a59509847b815a77974d7
Fixes: 0978d1df ("oml: implement handling of NM_ATT_IPACC_SUPP_FEATURES")
Related: OS#6324
---
M src/osmo-bts-omldummy/bts_model.c
1 file changed, 22 insertions(+), 0 deletions(-)
diff --git a/src/osmo-bts-omldummy/bts_model.c b/src/osmo-bts-omldummy/bts_model.c
index 0690d9d..8abca39 100644
--- a/src/osmo-bts-omldummy/bts_model.c
+++ b/src/osmo-bts-omldummy/bts_model.c
@@ -172,6 +172,9 @@
int bts_model_init(struct gsm_bts *bts)
{
bts->variant = BTS_OSMO_OMLDUMMY;
+ bts->support.ciphers = CIPHER_A5(1) | CIPHER_A5(2) | CIPHER_A5(3) | CIPHER_A5(4);
+ bts->gprs.cell.support.gprs_codings = NM_IPAC_MASK_GPRS_CODING_CS
+ | NM_IPAC_MASK_GPRS_CODING_MCS;
/* order alphabetically */
osmo_bts_set_feature(bts->features, BTS_FEAT_BCCH_POWER_RED);
osmo_bts_set_feature(bts->features, BTS_FEAT_CBCH);
@@ -186,6 +189,25 @@
struct trx_power_params *tpp = &trx->power_params;
/* Speed up shutdown, we don't care about power ramping in omldummy */
tpp->ramp.step_interval_sec = 0;
+ /* Frequency bands indicated to the BSC */
+ trx->support.freq_bands = NM_IPAC_F_FREQ_BAND_PGSM
+ | NM_IPAC_F_FREQ_BAND_EGSM
+ | NM_IPAC_F_FREQ_BAND_RGSM
+ | NM_IPAC_F_FREQ_BAND_DCS
+ | NM_IPAC_F_FREQ_BAND_PCS
+ | NM_IPAC_F_FREQ_BAND_850
+ | NM_IPAC_F_FREQ_BAND_480
+ | NM_IPAC_F_FREQ_BAND_450;
+
+ /* Channel types and modes indicated to the BSC */
+ trx->support.chan_types = NM_IPAC_MASK_CHANT_COMMON
+ | NM_IPAC_F_CHANT_BCCH_SDCCH4_CBCH
+ | NM_IPAC_F_CHANT_SDCCH8_CBCH
+ | NM_IPAC_F_CHANT_PDCHF
+ | NM_IPAC_F_CHANT_TCHF_PDCHF;
+ trx->support.chan_modes = NM_IPAC_MASK_CHANM_SPEECH
+ | NM_IPAC_MASK_CHANM_CSD_NT
+ | NM_IPAC_MASK_CHANM_CSD_T;
return 0;
}
To view, visit change 42596. To unsubscribe, or for help writing mail filters, visit settings.