MNCC: Do not continue with B leg if A leg is cancelled.
In case we receive MNCC_RTP_CREATE after MNCC_DISC_IND, check if the call is already marked in_release and if so, send MNCC_REJ_REQ and do not proceed with the B leg. Related: OS#3518 Change-Id: I0eca9a741f7924c2fc32c503dd1a0fc083f94f37
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38ab0528b6
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15
src/mncc.c
15
src/mncc.c
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@ -104,6 +104,17 @@ static struct mncc_call_leg *mncc_find_leg(uint32_t callref)
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return NULL;
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}
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/* Find a MNCC Call leg (by callref) which is not yet in release */
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static struct mncc_call_leg *mncc_find_leg_not_released(uint32_t callref)
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{
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struct mncc_call_leg *leg = mncc_find_leg(callref);
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if (!leg)
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return NULL;
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if (leg->base.in_release)
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return NULL;
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return leg;
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}
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static void mncc_fill_header(struct gsm_mncc *mncc, uint32_t msg_type, uint32_t callref)
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{
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struct mncc_call_leg *mncc_leg;
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@ -343,7 +354,7 @@ static void check_rtp_connect(struct mncc_connection *conn, const char *buf, int
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}
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rtp = (const struct gsm_mncc_rtp *) buf;
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leg = mncc_find_leg(rtp->callref);
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leg = mncc_find_leg_not_released(rtp->callref);
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if (!leg) {
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LOGP(DMNCC, LOGL_ERROR, "leg(%u) can not be found\n", rtp->callref);
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return mncc_send(conn, MNCC_REJ_REQ, rtp->callref);
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@ -373,7 +384,7 @@ static void check_rtp_create(struct mncc_connection *conn, const char *buf, int
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}
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rtp = (const struct gsm_mncc_rtp *) buf;
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leg = mncc_find_leg(rtp->callref);
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leg = mncc_find_leg_not_released(rtp->callref);
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if (!leg) {
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LOGP(DMNCC, LOGL_ERROR, "call(%u) can not be found\n", rtp->callref);
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return mncc_send(conn, MNCC_REJ_REQ, rtp->callref);
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