fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmocom-bb/+/35584?usp=email )
Change subject: [WIP] mobile: check Bearer Capability ......................................................................
[WIP] mobile: check Bearer Capability
Change-Id: I6ddbe49f453134d08578e35a015f2fd605705987 --- M src/host/layer23/src/mobile/tch_data.c 1 file changed, 54 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/84/35584/1
diff --git a/src/host/layer23/src/mobile/tch_data.c b/src/host/layer23/src/mobile/tch_data.c index 21ed1c2..995e491 100644 --- a/src/host/layer23/src/mobile/tch_data.c +++ b/src/host/layer23/src/mobile/tch_data.c @@ -305,11 +305,56 @@ return 0; }
+static int tch_data_check_bcap(const struct gsm_mncc_bearer_cap *bcap) +{ + if (bcap == NULL) { + LOGP(DL1C, LOGL_ERROR, + "%s(): CC transaction without BCap\n", + __func__); + return -ENODEV; + } + + if (bcap->mode != GSM48_BCAP_TMOD_CIRCUIT) { + LOGP(DMNCC, LOGL_ERROR, + "%s(): Transfer mode 0x%02x is not supported\n", + __func__, bcap->mode); + return -ENOTSUP; + } + if (bcap->coding != GSM48_BCAP_CODING_GSM_STD) { + LOGP(DMNCC, LOGL_ERROR, + "%s(): Coding standard 0x%02x is not supported\n", + __func__, bcap->coding); + return -ENOTSUP; + } + + switch (bcap->transfer) { + case GSM48_BCAP_ITCAP_UNR_DIG_INF: + case GSM48_BCAP_ITCAP_3k1_AUDIO: + /* XXX: sync/async: bcap->data.async */ + break; + case GSM48_BCAP_ITCAP_FAX_G3: + /* XXX: sync, transparent */ + break; + default: + LOGP(DMNCC, LOGL_ERROR, + "%s(): Information transfer capability 0x%02x is not supported\n", + __func__, bcap->transfer); + return -ENOTSUP; + } + + return 0; +} + int tch_data_state_init(struct gsm_trans *trans, struct tch_data_state *state) { struct osmocom_ms *ms = trans->ms; const struct gsm_settings *set = &ms->settings; + const struct gsm_mncc_bearer_cap *bcap = trans->cc.bcap; + int rc; + + if ((rc = tch_data_check_bcap(bcap)) != 0) + return rc;
switch (state->handler) { case TCH_DATA_IOH_UNIX_SOCK:
-
fixeria