cellular-infrastructure
/
osmo-msc
mirror of https://gerrit.osmocom.org/osmo-msc
9
0
Fork 0
Code Issues Releases Wiki Activity

a_iface: Include CSFB Indication into BSSMAP CLEAR COMMAND 

When a call ends that has been established in an CSFB context, we should
add a CSFB Indication IE to the BSSMAP CLEAR COMMAND to instruct the BSC
to add further CSFB related IEs into the RR RELEASE.

- Check if an SGs association exists and add CSFB Indication IE

Change-Id: I6cfa4b3becdd0138d74e2e1eddd83a0b1568c1de
Related: OS#3778
This commit is contained in:
Philipp Maier 2019-02-04 16:46:55 +01:00
parent 845285077d
commit 896950ab82
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/libmsc/a_iface.c
View File

@ -416,10 +416,15 @@ int a_iface_tx_assignment(const struct gsm_trans *trans)
int a_iface_tx_clear_cmd(struct ran_conn *conn)
{
struct msgb *msg;
struct vlr_subscr *vsub = conn->vsub;
bool csfb_ind = false;
LOGPCONN(conn, LOGL_INFO, "Tx BSSMAP CLEAR COMMAND to BSC\n");
msg = gsm0808_create_clear_command(GSM0808_CAUSE_CALL_CONTROL);
if (vsub && vsub->sgs_fsm->state == SGS_UE_ST_ASSOCIATED)
csfb_ind = true;
msg = gsm0808_create_clear_command2(GSM0808_CAUSE_CALL_CONTROL, csfb_ind);
return osmo_sccp_tx_data_msg(conn->a.scu, conn->a.conn_id, msg);
}