diff options
Diffstat (limited to 'src/libmsc/msc_vgcs.c')
| -rw-r--r-- | src/libmsc/msc_vgcs.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/libmsc/msc_vgcs.c b/src/libmsc/msc_vgcs.c index 772a9e3d0..d3f2e0e7f 100644 --- a/src/libmsc/msc_vgcs.c +++ b/src/libmsc/msc_vgcs.c @@ -859,6 +859,21 @@ static void gcc_terminate_and_destroy(struct gsm_trans *trans, enum osmo_gsm4406 trans_free(trans); } +/* Send TERMINATION REJECT to the calling/talking subscriber. */ +static void gcc_termination_reject(struct gsm_trans *trans, enum osmo_gsm44068_cause cause) +{ + uint8_t pdisc = (trans->type == TRANS_GCC) ? GSM48_PDISC_GROUP_CC : GSM48_PDISC_BCAST_CC; + int rc; + + /* Send TERMINATION towards MS. */ + rc = gsm44068_tx_termination(trans->msc_a, trans->gcc.uplink_bss, + pdisc | (trans->transaction_id << 4), + OSMO_GSM44068_MSGT_TERMINATION_REJECT, + cause, NULL, 0); + if (rc < 0) + LOG_GCC(trans, LOGL_ERROR, "Failed to send TERMINATION REJECT towards MS.\n"); +} + /* Start inactivity timer. * This timer is used to terminate the call, if the radio connection to the caller gets lost. */ static void start_inactivity_timer(struct gsm_trans *trans) @@ -1112,6 +1127,11 @@ static void vgcs_gcc_fsm_n2_call_active(struct osmo_fsm_inst *fi, uint32_t event gcc_terminate_and_destroy(trans, OSMO_GSM44068_CAUSE_NORMAL_CALL_CLEARING); break; case VGCS_GCC_EV_USER_TERM: + if (!trans->gcc.uplink_originator) { + LOG_GCC(trans, LOGL_ERROR, "Termination by user, but it is not the originator.\n"); + gcc_termination_reject(trans, OSMO_GSM44068_CAUSE_USER_NOT_ORIGINATOR); + break; + } LOG_GCC(trans, LOGL_DEBUG, "Termination by user, destroying call.\n"); /* Send TERMINATE to the calling subscriber and destroy group call in all cells. */ gcc_terminate_and_destroy(trans, OSMO_GSM44068_CAUSE_NORMAL_CALL_CLEARING); |