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msc: add trans_cc_set_remote_from_bc 

Prepare to set remote CSD bearer services in a future patch.

Related: OS#4394
Change-Id: I71a8ff6167e2adf3ee609883730e5f67b7539185
This commit is contained in:
Oliver Smith 2023-05-31 16:56:52 +02:00
parent c63c3a0cc5
commit 8a8ce714ff
3 changed files with 20 additions and 2 deletions
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1
include/osmocom/msc/transaction_cc.h
View File

@ -35,3 +35,4 @@ void trans_cc_filter_set_ran(struct gsm_trans *trans, enum osmo_rat_type ran_typ
void trans_cc_filter_set_bss(struct gsm_trans *trans, struct msc_a *msc_a);
void trans_cc_filter_run(struct gsm_trans *trans);
void trans_cc_filter_set_ms_from_bc(struct gsm_trans *trans, const struct gsm_mncc_bearer_cap *bcap);
void trans_cc_set_remote_from_bc(struct gsm_trans *trans, const struct gsm_mncc_bearer_cap *bcap);

3
src/libmsc/gsm_04_08_cc.c
View File

@ -812,8 +812,7 @@ static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg)
* MNCC, if any. */
if (!trans->cc.remote.audio_codecs.count && (setup->fields & MNCC_F_BEARER_CAP)) {
trans->cc.remote = (struct sdp_msg){};
sdp_audio_codecs_from_bearer_cap(&trans->cc.remote.audio_codecs,
&setup->bearer_cap);
trans_cc_set_remote_from_bc(trans, &setup->bearer_cap);
LOG_TRANS_CAT(trans, DMNCC, LOGL_DEBUG, "rx %s Bearer Cap: remote=%s\n",
get_mncc_name(setup->msg_type), sdp_msg_to_str(&trans->cc.remote));
}

18
src/libmsc/transaction_cc.c
View File

@ -64,3 +64,21 @@ void trans_cc_filter_set_ms_from_bc(struct gsm_trans *trans, const struct gsm_mn
break;
}
}
void trans_cc_set_remote_from_bc(struct gsm_trans *trans, const struct gsm_mncc_bearer_cap *bcap)
{
trans->cc.remote.audio_codecs = (struct sdp_audio_codecs){0};
if (!bcap)
return;
switch (bcap->transfer) {
case GSM48_BCAP_ITCAP_SPEECH:
sdp_audio_codecs_from_bearer_cap(&trans->cc.remote.audio_codecs, bcap);
break;
default:
LOG_TRANS(trans, LOGL_ERROR, "Handling of information transfer capability %d not implemented\n",
bcap->transfer);
break;
}
}