23 Mar
2016
23 Mar
'16
8:05 p.m.
On 23 Mar 2016, at 19:14, msuraev(a)sysmocom.de wrote:
From: Max <msuraev(a)sysmocom.de>
Note: ideally this situation should not happen - we should check
channel compatibility before paging 2nd leg of the call.
+ if (lt != rt) {
lt / rt is not declared in this patch (and yes, it belongs into this one. But channel type
is still not good enough. Let's assume I have a TCH/H and a TCH/F and I use AMR5.9 on
both of these channels. Then the voice codec (and its parameters) are compatible.
I don't know the specific ticket and ultimate goal but I think either you check for
codec compatibility or change the wording to refer only to channel type and leave the
actual voice codec incompat for another day.
+ LOGP(DCC, LOGL_ERROR, "Cannot patch through
call with different"
+ " channel types: local = %s, remote = %s\n",
+ osmo_gsm48_chan_type2str(lt), osmo_gsm48_chan_type2str(rt));
+ return -EBADSLT;
+ }
+
// todo: map between different bts types
switch (bts->type) {
case GSM_BTS_TYPE_NANOBTS:
@@ -1851,6 +1858,26 @@ static void gsm48_cc_timeout(void *arg)
}
+static inline void disconnect_bridge(struct gsm_network *net,
+ struct gsm_mncc_bridge *bridge)
+{
+ struct gsm_trans *trans0 = trans_find_by_callref(net, bridge->callref[0]);
+ struct gsm_trans *trans1 = trans_find_by_callref(net, bridge->callref[1]);
+ struct gsm_mncc mx_rel;
+ if (!trans0 || !trans1)
+ return;
Can you please elaborate about the intention of this method? You try to undo a failed
mapping and do this by disconnecting the call? Is that the right thing to do? Has there
been any side effect by the call of tch_map?
In the long run should there be a MNCC_BRIDGE_REJ answer to the MNCC_BRIDGE call?
@@ -3220,7 +3247,12 @@ int mncc_tx_to_cc(struct
gsm_network *net, int msg_type, void *arg)
/* handle special messages */
switch(msg_type) {
case MNCC_BRIDGE:
- return tch_bridge(net, arg);
+ rc = tch_bridge(net, arg);
+ if (rc < 0) {
+ DEBUGP(DCC, "Failed to bridge TCH: %s\n", strerror(-rc));
Do you think it makes sense to include both callrefs?
holger