<p>Harald Welte has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/9705">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">libmsc: move L3 call-control to separate C file (gsm_04_08_cc.c)<br><br>The CC sub-layer is fairly self-contained, so let's move it to<br>a separate C source file. The old gsm_04_08.c file now only<br>contains the 04.07 / DTAP core and MM sub-layer handling.<br><br>I did this initially as an experiment to see how self-contained<br>our CC implementation really is. Given this rather straight-forward<br>patch builds fine, CC really is self-contained (yay!).<br><br>Change-Id: Idb8dd7a8d9d8b4a28c492f12da3cc3305b695cca<br>---<br>M include/osmocom/msc/gsm_04_08.h<br>M src/libmsc/Makefile.am<br>M src/libmsc/gsm_04_08.c<br>A src/libmsc/gsm_04_08_cc.c<br>4 files changed, 2,142 insertions(+), 2,066 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/05/9705/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/include/osmocom/msc/gsm_04_08.h b/include/osmocom/msc/gsm_04_08.h</span><br><span>index a99e458..8767070 100644</span><br><span>--- a/include/osmocom/msc/gsm_04_08.h</span><br><span>+++ b/include/osmocom/msc/gsm_04_08.h</span><br><span>@@ -77,5 +77,6 @@</span><br><span> int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, const struct amr_mode *modes);</span><br><span> </span><br><span> int gsm48_tch_rtp_create(struct gsm_trans *trans);</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_conn_sendmsg(struct msgb *msg, struct gsm_subscriber_connection *conn, struct gsm_trans *trans);</span><br><span> </span><br><span> #endif</span><br><span>diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am</span><br><span>index ad8deec..a2560ea 100644</span><br><span>--- a/src/libmsc/Makefile.am</span><br><span>+++ b/src/libmsc/Makefile.am</span><br><span>@@ -32,6 +32,7 @@</span><br><span> msc_vty.c \</span><br><span> db.c \</span><br><span> gsm_04_08.c \</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm_04_08_cc.c \</span><br><span> gsm_04_11.c \</span><br><span> gsm_04_14.c \</span><br><span> gsm_04_80.c \</span><br><span>diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c</span><br><span>index 04fa4b0..f81a6fa 100644</span><br><span>--- a/src/libmsc/gsm_04_08.c</span><br><span>+++ b/src/libmsc/gsm_04_08.c</span><br><span>@@ -80,7 +80,23 @@</span><br><span> static int gsm0408_loc_upd_acc(struct gsm_subscriber_connection *conn,</span><br><span> uint32_t send_tmsi);</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-static uint32_t new_callref = 0x80000001;</span><br><span style="color: hsl(120, 100%, 40%);">+/*! Send a simple GSM 04.08 message without any payload</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param conn Active subscriber connection</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] pdisc Protocol discriminator</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] msg_type Message type</span><br><span style="color: hsl(120, 100%, 40%);">+ * \return result of \ref gsm48_conn_sendmsg</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_tx_simple(struct gsm_subscriber_connection *conn,</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t pdisc, uint8_t msg_type)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 TX SIMPLE");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->proto_discr = pdisc;</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = msg_type;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, conn, NULL);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span> </span><br><span> static bool classmark_is_r99(struct gsm_classmark *cm)</span><br><span> {</span><br><span>@@ -148,13 +164,7 @@</span><br><span> }</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-void cc_tx_to_mncc(struct gsm_network *net, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- net->mncc_recv(net, msg);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_conn_sendmsg(struct msgb *msg, struct gsm_subscriber_connection *conn,</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans)</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_conn_sendmsg(struct msgb *msg, struct gsm_subscriber_connection *conn, struct gsm_trans *trans)</span><br><span> {</span><br><span> struct gsm48_hdr *gh = (struct gsm48_hdr *) msg->data;</span><br><span> </span><br><span>@@ -168,23 +178,6 @@</span><br><span> return msc_tx_dtap(conn, msg);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-int gsm48_cc_tx_notify_ss(struct gsm_trans *trans, const char *message)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *ss_notify;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- ss_notify = gsm0480_create_notifySS(message);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!ss_notify)</span><br><span style="color: hsl(0, 100%, 40%);">- return -1;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm0480_wrap_invoke(ss_notify, GSM0480_OP_CODE_NOTIFY_SS, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t *data = msgb_push(ss_notify, 1);</span><br><span style="color: hsl(0, 100%, 40%);">- data[0] = ss_notify->len - 1;</span><br><span style="color: hsl(0, 100%, 40%);">- gh = (struct gsm48_hdr *) msgb_push(ss_notify, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(ss_notify, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span> /* clear all transactions globally; used in case of MNCC socket disconnect */</span><br><span> void gsm0408_clear_all_trans(struct gsm_network *net, int protocol)</span><br><span> {</span><br><span>@@ -1269,2047 +1262,6 @@</span><br><span> return gsm48_conn_sendmsg(msg, conn, NULL);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">-/* FIXME: this count_statistics is a state machine behaviour. we should convert</span><br><span style="color: hsl(0, 100%, 40%);">- * the complete call control into a state machine. Afterwards we can move this</span><br><span style="color: hsl(0, 100%, 40%);">- * code into state transitions.</span><br><span style="color: hsl(0, 100%, 40%);">- */</span><br><span style="color: hsl(0, 100%, 40%);">-static void count_statistics(struct gsm_trans *trans, int new_state)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- int old_state = trans->cc.state;</span><br><span style="color: hsl(0, 100%, 40%);">- struct rate_ctr_group *msc = trans->net->msc_ctrs;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (old_state == new_state)</span><br><span style="color: hsl(0, 100%, 40%);">- return;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* state incoming */</span><br><span style="color: hsl(0, 100%, 40%);">- switch (new_state) {</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_CSTATE_ACTIVE:</span><br><span style="color: hsl(0, 100%, 40%);">- osmo_counter_inc(trans->net->active_calls);</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_ACTIVE]);</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* state outgoing */</span><br><span style="color: hsl(0, 100%, 40%);">- switch (old_state) {</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_CSTATE_ACTIVE:</span><br><span style="color: hsl(0, 100%, 40%);">- osmo_counter_dec(trans->net->active_calls);</span><br><span style="color: hsl(0, 100%, 40%);">- if (new_state == GSM_CSTATE_DISCONNECT_REQ ||</span><br><span style="color: hsl(0, 100%, 40%);">- new_state == GSM_CSTATE_DISCONNECT_IND)</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_COMPLETE]);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_INCOMPLETE]);</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* Call Control */</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* The entire call control code is written in accordance with Figure 7.10c</span><br><span style="color: hsl(0, 100%, 40%);">- * for 'very early assignment', i.e. we allocate a TCH/F during IMMEDIATE</span><br><span style="color: hsl(0, 100%, 40%);">- * ASSIGN, then first use that TCH/F for signalling and later MODE MODIFY</span><br><span style="color: hsl(0, 100%, 40%);">- * it for voice */</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void new_cc_state(struct gsm_trans *trans, int state)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- if (state > 31 || state < 0)</span><br><span style="color: hsl(0, 100%, 40%);">- return;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(ti %02x sub %s) new state %s -> %s\n",</span><br><span style="color: hsl(0, 100%, 40%);">- trans->transaction_id,</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_name(trans->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_state_name(trans->cc.state),</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_state_name(state));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- count_statistics(trans, state);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->cc.state = state;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_status(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC STATUS");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t *cause, *call_state;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_STATUS;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- cause = msgb_put(msg, 3);</span><br><span style="color: hsl(0, 100%, 40%);">- cause[0] = 2;</span><br><span style="color: hsl(0, 100%, 40%);">- cause[1] = GSM48_CAUSE_CS_GSM | GSM48_CAUSE_LOC_USER;</span><br><span style="color: hsl(0, 100%, 40%);">- cause[2] = 0x80 | 30; /* response to status inquiry */</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- call_state = msgb_put(msg, 1);</span><br><span style="color: hsl(0, 100%, 40%);">- call_state[0] = 0xc0 | 0x00;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/*! Send a simple GSM 04.08 message without any payload</span><br><span style="color: hsl(0, 100%, 40%);">- * \param conn Active subscriber connection</span><br><span style="color: hsl(0, 100%, 40%);">- * \param[in] pdisc Protocol discriminator</span><br><span style="color: hsl(0, 100%, 40%);">- * \param[in] msg_type Message type</span><br><span style="color: hsl(0, 100%, 40%);">- * \return result of \ref gsm48_conn_sendmsg</span><br><span style="color: hsl(0, 100%, 40%);">- */</span><br><span style="color: hsl(0, 100%, 40%);">-int gsm48_tx_simple(struct gsm_subscriber_connection *conn,</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t pdisc, uint8_t msg_type)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 TX SIMPLE");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->proto_discr = pdisc;</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = msg_type;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, conn, NULL);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void gsm48_stop_cc_timer(struct gsm_trans *trans)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- if (osmo_timer_pending(&trans->cc.timer)) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "stopping pending timer T%x\n", trans->cc.Tcurrent);</span><br><span style="color: hsl(0, 100%, 40%);">- osmo_timer_del(&trans->cc.timer);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->cc.Tcurrent = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int mncc_recvmsg(struct gsm_network *net, struct gsm_trans *trans,</span><br><span style="color: hsl(0, 100%, 40%);">- int msg_type, struct gsm_mncc *mncc)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg;</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned char *data;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DMNCC, "transmit message %s\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-#if BEFORE_MSCSPLIT</span><br><span style="color: hsl(0, 100%, 40%);">- /* Re-enable this log output once we can obtain this information via</span><br><span style="color: hsl(0, 100%, 40%);">- * A-interface, see OS#2391. */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans)</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->conn && trans->conn->lchan)</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts %d trx %d ts %d ti %x sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Sending '%s' to MNCC.\n",</span><br><span style="color: hsl(0, 100%, 40%);">- trans->conn->lchan->ts->trx->bts->nr,</span><br><span style="color: hsl(0, 100%, 40%);">- trans->conn->lchan->ts->trx->nr,</span><br><span style="color: hsl(0, 100%, 40%);">- trans->conn->lchan->ts->nr, trans->transaction_id,</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_msisdn_or_name(trans->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Sending '%s' to MNCC.\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_msisdn_or_name(trans->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti -- sub -) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Sending '%s' to MNCC.\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">-#else</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Sending '%s' to MNCC.\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">-#endif</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- mncc->msg_type = msg_type;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- msg = msgb_alloc(sizeof(struct gsm_mncc), "MNCC");</span><br><span style="color: hsl(0, 100%, 40%);">- if (!msg)</span><br><span style="color: hsl(0, 100%, 40%);">- return -ENOMEM;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- data = msgb_put(msg, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(data, mncc, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- cc_tx_to_mncc(net, msg);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-int mncc_release_ind(struct gsm_network *net, struct gsm_trans *trans,</span><br><span style="color: hsl(0, 100%, 40%);">- uint32_t callref, int location, int value)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc rel;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&rel, 0, sizeof(rel));</span><br><span style="color: hsl(0, 100%, 40%);">- rel.callref = callref;</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_set_cause(&rel, location, value);</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans && trans->cc.state == GSM_CSTATE_RELEASE_REQ)</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(net, trans, MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(net, trans, MNCC_REL_IND, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* Call Control Specific transaction release.</span><br><span style="color: hsl(0, 100%, 40%);">- * gets called by trans_free, DO NOT CALL YOURSELF! */</span><br><span style="color: hsl(0, 100%, 40%);">-void _gsm48_cc_trans_free(struct gsm_trans *trans)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Initiate the teardown of the related connections on the MGW */</span><br><span style="color: hsl(0, 100%, 40%);">- msc_mgcp_call_release(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* send release to L4, if callref still exists */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->callref) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* Ressource unavailable */</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(0, 100%, 40%);">- /* This is a final freeing of the transaction. The MNCC release may have triggered the</span><br><span style="color: hsl(0, 100%, 40%);">- * T308 release timer, but we don't have the luxury of graceful CC Release here. */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->cc.state != GSM_CSTATE_NULL)</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_NULL);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* call-back from paging the B-end of the connection */</span><br><span style="color: hsl(0, 100%, 40%);">-static int setup_trig_pag_evt(unsigned int hooknum, unsigned int event,</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg, void *_conn, void *_transt)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_subscriber_connection *conn = _conn;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *transt = _transt;</span><br><span style="color: hsl(0, 100%, 40%);">- enum gsm_paging_event paging_event = event;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_ASSERT(!transt->conn);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- switch (paging_event) {</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_PAGING_SUCCEEDED:</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Paging subscr %s succeeded!\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_msisdn_or_name(transt->vsub));</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_ASSERT(conn);</span><br><span style="color: hsl(0, 100%, 40%);">- /* Assign conn */</span><br><span style="color: hsl(0, 100%, 40%);">- transt->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_CC);</span><br><span style="color: hsl(0, 100%, 40%);">- transt->paging_request = NULL;</span><br><span style="color: hsl(0, 100%, 40%);">- /* send SETUP request to called party */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_tx_setup(transt, &transt->cc.msg);</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_PAGING_EXPIRED:</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_PAGING_BUSY:</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Paging subscr %s %s!\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_msisdn_or_name(transt->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- paging_event == GSM_PAGING_EXPIRED ? "expired" : "busy");</span><br><span style="color: hsl(0, 100%, 40%);">- /* Temporarily out of order */</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_release_ind(transt->net, transt,</span><br><span style="color: hsl(0, 100%, 40%);">- transt->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_DEST_OOO);</span><br><span style="color: hsl(0, 100%, 40%);">- transt->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- transt->paging_request = NULL;</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(transt);</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* bridge channels of two transactions */</span><br><span style="color: hsl(0, 100%, 40%);">-static int tch_bridge(struct gsm_network *net, struct gsm_mncc_bridge *bridge)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans1 = trans_find_by_callref(net, bridge->callref[0]);</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans2 = trans_find_by_callref(net, bridge->callref[1]);</span><br><span style="color: hsl(0, 100%, 40%);">- int rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans1 || !trans2)</span><br><span style="color: hsl(0, 100%, 40%);">- return -EIO;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans1->conn || !trans2->conn)</span><br><span style="color: hsl(0, 100%, 40%);">- return -EIO;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Which subscriber do we want to track trans1 or trans2? */</span><br><span style="color: hsl(0, 100%, 40%);">- log_set_context(LOG_CTX_VLR_SUBSCR, trans1->vsub);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Bridge RTP streams */</span><br><span style="color: hsl(0, 100%, 40%);">- rc = msc_mgcp_call_complete(trans1, trans2->conn->rtp.local_port_cn,</span><br><span style="color: hsl(0, 100%, 40%);">- trans2->conn->rtp.local_addr_cn);</span><br><span style="color: hsl(0, 100%, 40%);">- if (rc)</span><br><span style="color: hsl(0, 100%, 40%);">- return -EINVAL;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rc = msc_mgcp_call_complete(trans2, trans1->conn->rtp.local_port_cn,</span><br><span style="color: hsl(0, 100%, 40%);">- trans1->conn->rtp.local_addr_cn);</span><br><span style="color: hsl(0, 100%, 40%);">- if (rc)</span><br><span style="color: hsl(0, 100%, 40%);">- return -EINVAL;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_status_enq(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "-> STATUS ENQ\n");</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_cc_tx_status(trans, msg);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_release(struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_disconnect(struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void gsm48_cc_timeout(void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- int disconnect = 0, release = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- int mo_cause = GSM48_CC_CAUSE_RECOVERY_TIMER;</span><br><span style="color: hsl(0, 100%, 40%);">- int mo_location = GSM48_CAUSE_LOC_USER;</span><br><span style="color: hsl(0, 100%, 40%);">- int l4_cause = GSM48_CC_CAUSE_NORMAL_UNSPEC;</span><br><span style="color: hsl(0, 100%, 40%);">- int l4_location = GSM48_CAUSE_LOC_PRN_S_LU;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc mo_rel, l4_rel;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&mo_rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- mo_rel.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&l4_rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- l4_rel.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- switch(trans->cc.Tcurrent) {</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x303:</span><br><span style="color: hsl(0, 100%, 40%);">- release = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x310:</span><br><span style="color: hsl(0, 100%, 40%);">- disconnect = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x313:</span><br><span style="color: hsl(0, 100%, 40%);">- disconnect = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- /* unknown, did not find it in the specs */</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x301:</span><br><span style="color: hsl(0, 100%, 40%);">- disconnect = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x308:</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans->cc.T308_second) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* restart T308 a second time */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_tx_release(trans, &trans->cc.msg);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->cc.T308_second = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- break; /* stay in release state */</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- return;</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x306:</span><br><span style="color: hsl(0, 100%, 40%);">- release = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- mo_cause = trans->cc.msg.cause.value;</span><br><span style="color: hsl(0, 100%, 40%);">- mo_location = trans->cc.msg.cause.location;</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case 0x323:</span><br><span style="color: hsl(0, 100%, 40%);">- disconnect = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- default:</span><br><span style="color: hsl(0, 100%, 40%);">- release = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (release && trans->callref) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* process release towards layer 4 */</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- l4_location, l4_cause);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (disconnect && trans->callref) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* process disconnect towards layer 4 */</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_set_cause(&l4_rel, l4_location, l4_cause);</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recvmsg(trans->net, trans, MNCC_DISC_IND, &l4_rel);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* process disconnect towards mobile station */</span><br><span style="color: hsl(0, 100%, 40%);">- if (disconnect || release) {</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_set_cause(&mo_rel, mo_location, mo_cause);</span><br><span style="color: hsl(0, 100%, 40%);">- mo_rel.cause.diag[0] = ((trans->cc.Tcurrent & 0xf00) >> 8) + '0';</span><br><span style="color: hsl(0, 100%, 40%);">- mo_rel.cause.diag[1] = ((trans->cc.Tcurrent & 0x0f0) >> 4) + '0';</span><br><span style="color: hsl(0, 100%, 40%);">- mo_rel.cause.diag[2] = (trans->cc.Tcurrent & 0x00f) + '0';</span><br><span style="color: hsl(0, 100%, 40%);">- mo_rel.cause.diag_len = 3;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (disconnect)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_tx_disconnect(trans, &mo_rel);</span><br><span style="color: hsl(0, 100%, 40%);">- if (release)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_tx_release(trans, &mo_rel);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* disconnect both calls from the bridge */</span><br><span style="color: hsl(0, 100%, 40%);">-static inline void disconnect_bridge(struct gsm_network *net,</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc_bridge *bridge, int err)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans0 = trans_find_by_callref(net, bridge->callref[0]);</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans1 = trans_find_by_callref(net, bridge->callref[1]);</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc mx_rel;</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans0 || !trans1)</span><br><span style="color: hsl(0, 100%, 40%);">- return;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Failed to bridge TCH for calls %x <-> %x :: %s \n",</span><br><span style="color: hsl(0, 100%, 40%);">- trans0->callref, trans1->callref, strerror(err));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&mx_rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_set_cause(&mx_rel, GSM48_CAUSE_LOC_INN_NET,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_CHAN_UNACCEPT);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- mx_rel.callref = trans0->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_tx_disconnect(trans0, &mx_rel);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- mx_rel.callref = trans1->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_tx_disconnect(trans1, &mx_rel);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void gsm48_start_cc_timer(struct gsm_trans *trans, int current,</span><br><span style="color: hsl(0, 100%, 40%);">- int sec, int micro)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "starting timer T%x with %d seconds\n", current, sec);</span><br><span style="color: hsl(0, 100%, 40%);">- osmo_timer_setup(&trans->cc.timer, gsm48_cc_timeout, trans);</span><br><span style="color: hsl(0, 100%, 40%);">- osmo_timer_schedule(&trans->cc.timer, sec, micro);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->cc.Tcurrent = current;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_setup(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t msg_type = gsm48_hdr_msg_type(gh);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc setup;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&setup, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- setup.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* emergency setup is identified by msg_type */</span><br><span style="color: hsl(0, 100%, 40%);">- if (msg_type == GSM48_MT_CC_EMERG_SETUP) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_EMERGENCY;</span><br><span style="color: hsl(0, 100%, 40%);">- setup.emergency = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- /* use destination number as configured by user (if any) */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->net->emergency.route_to_msisdn) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_CALLED;</span><br><span style="color: hsl(0, 100%, 40%);">- setup.called.type = 0; /* unknown */</span><br><span style="color: hsl(0, 100%, 40%);">- setup.called.plan = 0; /* unknown */</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_STRLCPY_ARRAY(setup.called.number,</span><br><span style="color: hsl(0, 100%, 40%);">- trans->net->emergency.route_to_msisdn);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* use subscriber as calling party number */</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_CALLING;</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_STRLCPY_ARRAY(setup.calling.number, trans->vsub->msisdn);</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_STRLCPY_ARRAY(setup.imsi, trans->vsub->imsi);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_bearer_cap(&setup.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create a copy of the bearer capability</span><br><span style="color: hsl(0, 100%, 40%);">- * in the transaction struct, so we can use</span><br><span style="color: hsl(0, 100%, 40%);">- * this information later */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap,&setup.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&setup.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* called party bcd number */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CALLED_BCD)) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_CALLED;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_called(&setup.called,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CALLED_BCD)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_useruser(&setup.useruser,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&setup.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* CLIR suppression */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CLIR_SUPP))</span><br><span style="color: hsl(0, 100%, 40%);">- setup.clir.sup = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- /* CLIR invocation */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CLIR_INVOC))</span><br><span style="color: hsl(0, 100%, 40%);">- setup.clir.inv = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- /* cc cap */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CC_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- setup.fields |= MNCC_F_CCCAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cccap(&setup.cccap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_INITIATED);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DCC, setup.emergency ? LOGL_NOTICE : LOGL_INFO, "Subscriber %s (%s) sends %sSETUP to %s\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_name(trans->vsub), trans->vsub->msisdn, setup.emergency ? "EMERGENCY_" : "",</span><br><span style="color: hsl(0, 100%, 40%);">- setup.called.number);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MO_SETUP]);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* indicate setup to MNCC */</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recvmsg(trans->net, trans, MNCC_SETUP_IND, &setup);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* MNCC code will modify the channel asynchronously, we should</span><br><span style="color: hsl(0, 100%, 40%);">- * ipaccess-bind only after the modification has been made to the</span><br><span style="color: hsl(0, 100%, 40%);">- * lchan->tch_mode */</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC STUP");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *setup = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- int rc, trans_id;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* transaction id must not be assigned */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->transaction_id != 0xff) { /* unasssigned */</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "TX Setup with assigned transaction. "</span><br><span style="color: hsl(0, 100%, 40%);">- "This is not allowed!\n");</span><br><span style="color: hsl(0, 100%, 40%);">- /* Temporarily out of order */</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Get free transaction_id */</span><br><span style="color: hsl(0, 100%, 40%);">- trans_id = trans_assign_trans_id(trans->net, trans->vsub,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_PDISC_CC, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans_id < 0) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* no free transaction ID */</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- trans->transaction_id = trans_id;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_SETUP;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x303, GSM48_T303);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_BEARER_CAP) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create a copy of the bearer capability in the transaction struct, so we</span><br><span style="color: hsl(0, 100%, 40%);">- * can use this information later */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap, &setup->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_bearer_cap(msg, 0, &setup->bearer_cap);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &setup->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_progress(msg, 0, &setup->progress);</span><br><span style="color: hsl(0, 100%, 40%);">- /* calling party BCD number */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_CALLING)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_calling(msg, &setup->calling);</span><br><span style="color: hsl(0, 100%, 40%);">- /* called party BCD number */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_CALLED)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_called(msg, &setup->called);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &setup->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">- /* redirecting party BCD number */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_REDIRECTING)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_redirecting(msg, &setup->redirecting);</span><br><span style="color: hsl(0, 100%, 40%);">- /* signal */</span><br><span style="color: hsl(0, 100%, 40%);">- if (setup->fields & MNCC_F_SIGNAL)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_signal(msg, setup->signal);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_CALL_PRESENT);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MT_SETUP]);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_call_conf(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc call_conf;</span><br><span style="color: hsl(0, 100%, 40%);">- int rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x310, GSM48_T310);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&call_conf, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- call_conf.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">-#if 0</span><br><span style="color: hsl(0, 100%, 40%);">- /* repeat */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_REPEAT_CIR))</span><br><span style="color: hsl(0, 100%, 40%);">- call_conf.repeat = 1;</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_REPEAT_SEQ))</span><br><span style="color: hsl(0, 100%, 40%);">- call_conf.repeat = 2;</span><br><span style="color: hsl(0, 100%, 40%);">-#endif</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- call_conf.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_bearer_cap(&call_conf.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create a copy of the bearer capability</span><br><span style="color: hsl(0, 100%, 40%);">- * in the transaction struct, so we can use</span><br><span style="color: hsl(0, 100%, 40%);">- * this information later */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap,&call_conf.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(0, 100%, 40%);">- call_conf.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cause(&call_conf.cause,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* cc cap */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CC_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- call_conf.fields |= MNCC_F_CCCAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cccap(&call_conf.cccap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* IMSI of called subscriber */</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_STRLCPY_ARRAY(call_conf.imsi, trans->vsub->imsi);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_MO_TERM_CALL_CONF);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Assign call (if not done yet) */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->assignment_done == false) {</span><br><span style="color: hsl(0, 100%, 40%);">- rc = msc_mgcp_call_assignment(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->assignment_done = true;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- rc = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* don't continue, if there were problems with</span><br><span style="color: hsl(0, 100%, 40%);">- * the call assignment. */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rc)</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_CALL_CONF_IND,</span><br><span style="color: hsl(0, 100%, 40%);">- &call_conf);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_call_proc_and_assign(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *proceeding = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC PROC");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">- int rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_CALL_PROC;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_MO_CALL_PROC);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (proceeding->fields & MNCC_F_BEARER_CAP) {</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_bearer_cap(msg, 0, &proceeding->bearer_cap);</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap, &proceeding->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (proceeding->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &proceeding->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- if (proceeding->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_progress(msg, 0, &proceeding->progress);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rc = gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">- if (rc)</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Assign call (if not done yet) */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->assignment_done == false) {</span><br><span style="color: hsl(0, 100%, 40%);">- rc = msc_mgcp_call_assignment(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->assignment_done = true;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- rc = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_alerting(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc alerting;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x301, GSM48_T301);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&alerting, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- alerting.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- alerting.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&alerting.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_PROGR_IND)) {</span><br><span style="color: hsl(0, 100%, 40%);">- alerting.fields |= MNCC_F_PROGRESS;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_progress(&alerting.progress,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_PROGR_IND)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- alerting.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&alerting.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_CALL_RECEIVED);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_ALERT_IND,</span><br><span style="color: hsl(0, 100%, 40%);">- &alerting);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_alerting(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *alerting = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC ALERT");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_ALERTING;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (alerting->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &alerting->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- if (alerting->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_progress(msg, 0, &alerting->progress);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (alerting->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &alerting->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_CALL_DELIVERED);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_progress(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *progress = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC PROGRESS");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_PROGRESS;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_progress(msg, 1, &progress->progress);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (progress->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &progress->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_connect(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *connect = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSN 04.08 CC CON");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_CONNECT;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x313, GSM48_T313);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (connect->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &connect->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- if (connect->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_progress(msg, 0, &connect->progress);</span><br><span style="color: hsl(0, 100%, 40%);">- /* connected number */</span><br><span style="color: hsl(0, 100%, 40%);">- if (connect->fields & MNCC_F_CONNECTED)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_connected(msg, &connect->connected);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (connect->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &connect->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_CONNECT_IND);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_connect(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc connect;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&connect, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- connect.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* use subscriber as connected party number */</span><br><span style="color: hsl(0, 100%, 40%);">- connect.fields |= MNCC_F_CONNECTED;</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_STRLCPY_ARRAY(connect.connected.number, trans->vsub->msisdn);</span><br><span style="color: hsl(0, 100%, 40%);">- OSMO_STRLCPY_ARRAY(connect.imsi, trans->vsub->imsi);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- connect.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&connect.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(0, 100%, 40%);">- connect.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_useruser(&connect.useruser,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- connect.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&connect.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_CONNECT_REQUEST);</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MT_CONNECT]);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_SETUP_CNF, &connect);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_connect_ack(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc connect_ack;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(0, 100%, 40%);">- rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MO_CONNECT_ACK]);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&connect_ack, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- connect_ack.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_SETUP_COMPL_IND,</span><br><span style="color: hsl(0, 100%, 40%);">- &connect_ack);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_connect_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC CON ACK");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_CONNECT_ACK;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_disconnect(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc disc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_DISCONNECT_REQ);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&disc, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- disc.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_CAUSE, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(0, 100%, 40%);">- disc.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cause(&disc.cause,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- disc.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&disc.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(0, 100%, 40%);">- disc.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_useruser(&disc.useruser,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- disc.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&disc.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_DISC_IND, &disc);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static struct gsm_mncc_cause default_cause = {</span><br><span style="color: hsl(0, 100%, 40%);">- .location = GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- .coding = 0,</span><br><span style="color: hsl(0, 100%, 40%);">- .rec = 0,</span><br><span style="color: hsl(0, 100%, 40%);">- .rec_val = 0,</span><br><span style="color: hsl(0, 100%, 40%);">- .value = GSM48_CC_CAUSE_NORMAL_UNSPEC,</span><br><span style="color: hsl(0, 100%, 40%);">- .diag_len = 0,</span><br><span style="color: hsl(0, 100%, 40%);">- .diag = { 0 },</span><br><span style="color: hsl(0, 100%, 40%);">-};</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_disconnect(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *disc = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC DISC");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_DISCONNECT;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x306, GSM48_T306);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (disc->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &disc->cause);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (disc->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &disc->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* progress */</span><br><span style="color: hsl(0, 100%, 40%);">- if (disc->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_progress(msg, 0, &disc->progress);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (disc->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &disc->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* store disconnect cause for T306 expiry */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->cc.msg, disc, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_DISCONNECT_IND);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_release(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc rel;</span><br><span style="color: hsl(0, 100%, 40%);">- int rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- rel.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cause(&rel.cause,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&rel.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_useruser(&rel.useruser,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&rel.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->cc.state == GSM_CSTATE_RELEASE_REQ) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* release collision 5.4.5 */</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(trans->net, trans, MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- } else {</span><br><span style="color: hsl(0, 100%, 40%);">- rc = gsm48_tx_simple(trans->conn,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_PDISC_CC | (trans->transaction_id << 4),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_RELEASE_COMPL);</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(trans->net, trans, MNCC_REL_IND, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_NULL);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_release(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *rel = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC REL");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_RELEASE;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x308, GSM48_T308);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rel->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 0, &rel->cause);</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rel->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &rel->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rel->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &rel->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- trans->cc.T308_second = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->cc.msg, rel, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->cc.state != GSM_CSTATE_RELEASE_REQ)</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_RELEASE_REQ);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_release_compl(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc rel;</span><br><span style="color: hsl(0, 100%, 40%);">- int rc = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- rel.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cause(&rel.cause,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&rel.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_useruser(&rel.useruser,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- rel.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&rel.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->callref) {</span><br><span style="color: hsl(0, 100%, 40%);">- switch (trans->cc.state) {</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_CSTATE_CALL_PRESENT:</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(trans->net, trans,</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_REJ_IND, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_CSTATE_RELEASE_REQ:</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(trans->net, trans,</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- default:</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(trans->net, trans,</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_REL_IND, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_release_compl(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *rel = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC REL COMPL");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">- int ret;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_RELEASE_COMPL;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rel->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 0, &rel->cause);</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rel->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 0, &rel->facility);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rel->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 0, &rel->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- ret = gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return ret;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_facility(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc fac;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&fac, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- fac.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_FACILITY, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- fac.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_facility(&fac.facility,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* ss-version */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(0, 100%, 40%);">- fac.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_ssversion(&fac.ssversion,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_FACILITY_IND, &fac);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_facility(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *fac = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC FAC");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_FACILITY;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* facility */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_facility(msg, 1, &fac->facility);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_hold(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc hold;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&hold, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- hold.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_HOLD_IND, &hold);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_hold_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC HLD ACK");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_HOLD_ACK;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_hold_rej(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *hold_rej = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC HLD REJ");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_HOLD_REJ;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (hold_rej->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &hold_rej->cause);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_retrieve(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc retrieve;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&retrieve, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- retrieve.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_RETRIEVE_IND,</span><br><span style="color: hsl(0, 100%, 40%);">- &retrieve);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_retrieve_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC RETR ACK");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_RETR_ACK;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_retrieve_rej(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *retrieve_rej = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC RETR REJ");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_RETR_REJ;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (retrieve_rej->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &retrieve_rej->cause);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_start_dtmf(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc dtmf;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&dtmf, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- dtmf.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* keypad facility */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_KPD_FACILITY)) {</span><br><span style="color: hsl(0, 100%, 40%);">- dtmf.fields |= MNCC_F_KEYPAD;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_keypad(&dtmf.keypad,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_KPD_FACILITY)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_START_DTMF_IND, &dtmf);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_start_dtmf_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *dtmf = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 DTMF ACK");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_START_DTMF_ACK;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* keypad */</span><br><span style="color: hsl(0, 100%, 40%);">- if (dtmf->fields & MNCC_F_KEYPAD)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_keypad(msg, dtmf->keypad);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_start_dtmf_rej(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *dtmf = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 DTMF REJ");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_START_DTMF_REJ;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (dtmf->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &dtmf->cause);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_stop_dtmf_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 DTMF STP ACK");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_STOP_DTMF_ACK;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_stop_dtmf(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc dtmf;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&dtmf, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- dtmf.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_STOP_DTMF_IND, &dtmf);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_modify(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc modify;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&modify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- modify.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- modify.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_bearer_cap(&modify.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create a copy of the bearer capability</span><br><span style="color: hsl(0, 100%, 40%);">- * in the transaction struct, so we can use</span><br><span style="color: hsl(0, 100%, 40%);">- * this information later */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap,&modify.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_MO_ORIG_MODIFY);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_MODIFY_IND, &modify);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_modify(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *modify = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC MOD");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_MODIFY;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_start_cc_timer(trans, 0x323, GSM48_T323);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap, &modify->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_MO_TERM_MODIFY);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_modify_complete(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc modify;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&modify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- modify.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- modify.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_bearer_cap(&modify.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create a copy of the bearer capability</span><br><span style="color: hsl(0, 100%, 40%);">- * in the transaction struct, so we can use</span><br><span style="color: hsl(0, 100%, 40%);">- * this information later */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap,&modify.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_MODIFY_CNF, &modify);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_modify_complete(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *modify = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC MOD COMPL");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_MODIFY_COMPL;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap, &modify->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_modify_reject(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc modify;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&modify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- modify.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, GSM48_IE_CAUSE);</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(0, 100%, 40%);">- modify.fields |= GSM48_IE_BEARER_CAP;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_bearer_cap(&modify.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create a copy of the bearer capability</span><br><span style="color: hsl(0, 100%, 40%);">- * in the transaction struct, so we can use</span><br><span style="color: hsl(0, 100%, 40%);">- * this information later */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap,&modify.bearer_cap,</span><br><span style="color: hsl(0, 100%, 40%);">- sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(0, 100%, 40%);">- modify.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_cause(&modify.cause,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_MODIFY_REJ, &modify);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_modify_reject(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *modify = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC MOD REJ");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_MODIFY_REJECT;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* bearer capability */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->bearer_cap, &modify->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(0, 100%, 40%);">- /* cause */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_cause(msg, 1, &modify->cause);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_notify(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *notify = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC NOT");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_NOTIFY;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* notify */</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_notify(msg, notify->notify);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_notify(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">-// struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc notify;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(¬ify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- notify.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-// tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len);</span><br><span style="color: hsl(0, 100%, 40%);">- if (payload_len >= 1)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_notify(¬ify.notify, gh->data);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_NOTIFY_IND, ¬ify);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_tx_userinfo(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *user = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 USR INFO");</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- gh->msg_type = GSM48_MT_CC_USER_INFO;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (user->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_useruser(msg, 1, &user->useruser);</span><br><span style="color: hsl(0, 100%, 40%);">- /* more data */</span><br><span style="color: hsl(0, 100%, 40%);">- if (user->more)</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_encode_more(msg);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm48_cc_rx_userinfo(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct tlv_parsed tp;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc user;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&user, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- user.callref = trans->callref;</span><br><span style="color: hsl(0, 100%, 40%);">- tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_USER_USER, 0);</span><br><span style="color: hsl(0, 100%, 40%);">- /* user-user */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(0, 100%, 40%);">- user.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_decode_useruser(&user.useruser,</span><br><span style="color: hsl(0, 100%, 40%);">- TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* more data */</span><br><span style="color: hsl(0, 100%, 40%);">- if (TLVP_PRESENT(&tp, GSM48_IE_MORE_DATA))</span><br><span style="color: hsl(0, 100%, 40%);">- user.more = 1;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recvmsg(trans->net, trans, MNCC_USERINFO_IND, &user);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void mncc_recv_rtp(struct gsm_network *net, uint32_t callref,</span><br><span style="color: hsl(0, 100%, 40%);">- int cmd, uint32_t addr, uint16_t port, uint32_t payload_type,</span><br><span style="color: hsl(0, 100%, 40%);">- uint32_t payload_msg_type)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t data[sizeof(struct gsm_mncc)];</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc_rtp *rtp;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&data, 0, sizeof(data));</span><br><span style="color: hsl(0, 100%, 40%);">- rtp = (struct gsm_mncc_rtp *) &data[0];</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->callref = callref;</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->msg_type = cmd;</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->ip = addr;</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->port = port;</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->payload_type = payload_type;</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->payload_msg_type = payload_msg_type;</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recvmsg(net, NULL, cmd, (struct gsm_mncc *)data);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void mncc_recv_rtp_sock(struct gsm_network *net, struct gsm_trans *trans, int cmd)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- int msg_type;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* FIXME This has to be set to some meaningful value.</span><br><span style="color: hsl(0, 100%, 40%);">- * Possible options are:</span><br><span style="color: hsl(0, 100%, 40%);">- * GSM_TCHF_FRAME, GSM_TCHF_FRAME_EFR,</span><br><span style="color: hsl(0, 100%, 40%);">- * GSM_TCHH_FRAME, GSM_TCH_FRAME_AMR</span><br><span style="color: hsl(0, 100%, 40%);">- * (0 if unknown) */</span><br><span style="color: hsl(0, 100%, 40%);">- msg_type = GSM_TCHF_FRAME;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- uint32_t addr = inet_addr(trans->conn->rtp.local_addr_cn);</span><br><span style="color: hsl(0, 100%, 40%);">- uint16_t port = trans->conn->rtp.local_port_cn;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR, "RTP create for non-existing trans\n");</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (addr == INADDR_NONE) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR,</span><br><span style="color: hsl(0, 100%, 40%);">- "(subscriber:%s) external MNCC is signalling invalid IP-Address\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_name(trans->vsub));</span><br><span style="color: hsl(0, 100%, 40%);">- return;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- if (port == 0) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR,</span><br><span style="color: hsl(0, 100%, 40%);">- "(subscriber:%s) external MNCC is signalling invalid Port\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_name(trans->vsub));</span><br><span style="color: hsl(0, 100%, 40%);">- return;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* FIXME: This has to be set to some meaningful value,</span><br><span style="color: hsl(0, 100%, 40%);">- * before the MSC-Split, this value was pulled from</span><br><span style="color: hsl(0, 100%, 40%);">- * lchan->abis_ip.rtp_payload */</span><br><span style="color: hsl(0, 100%, 40%);">- uint32_t payload_type = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recv_rtp(net, trans->callref, cmd,</span><br><span style="color: hsl(0, 100%, 40%);">- addr,</span><br><span style="color: hsl(0, 100%, 40%);">- port,</span><br><span style="color: hsl(0, 100%, 40%);">- payload_type,</span><br><span style="color: hsl(0, 100%, 40%);">- msg_type);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static void mncc_recv_rtp_err(struct gsm_network *net, uint32_t callref, int cmd)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_recv_rtp(net, callref, cmd, 0, 0, 0, 0);</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int tch_rtp_create(struct gsm_network *net, uint32_t callref)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans;</span><br><span style="color: hsl(0, 100%, 40%);">- int rc;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Find callref */</span><br><span style="color: hsl(0, 100%, 40%);">- trans = trans_find_by_callref(net, callref);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR, "RTP create for non-existing trans\n");</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recv_rtp_err(net, callref, MNCC_RTP_CREATE);</span><br><span style="color: hsl(0, 100%, 40%);">- return -EIO;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- log_set_context(LOG_CTX_VLR_SUBSCR, trans->vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans->conn) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_NOTICE, "RTP create for trans without conn\n");</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recv_rtp_err(net, callref, MNCC_RTP_CREATE);</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- trans->conn->mncc_rtp_bridge = 1;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* When we call msc_mgcp_call_assignment() we will trigger, depending</span><br><span style="color: hsl(0, 100%, 40%);">- * on the RAN type the call assignment on the A or Iu interface.</span><br><span style="color: hsl(0, 100%, 40%);">- * msc_mgcp_call_assignment() also takes care about sending the CRCX</span><br><span style="color: hsl(0, 100%, 40%);">- * command to the MGCP-GW. The CRCX will return the port number,</span><br><span style="color: hsl(0, 100%, 40%);">- * where the PBX (e.g. Asterisk) will send its RTP stream to. We</span><br><span style="color: hsl(0, 100%, 40%);">- * have to return this port number back to the MNCC by sending</span><br><span style="color: hsl(0, 100%, 40%);">- * it back with the TCH_RTP_CREATE message. To make sure that</span><br><span style="color: hsl(0, 100%, 40%);">- * this message is sent AFTER the response to CRCX from the</span><br><span style="color: hsl(0, 100%, 40%);">- * MGCP-GW has arrived, we need will instruct msc_mgcp_call_assignment()</span><br><span style="color: hsl(0, 100%, 40%);">- * to take care of this by setting trans->tch_rtp_create to true.</span><br><span style="color: hsl(0, 100%, 40%);">- * This will make sure that gsm48_tch_rtp_create() (below) is</span><br><span style="color: hsl(0, 100%, 40%);">- * called as soon as the local port number has become known. */</span><br><span style="color: hsl(0, 100%, 40%);">- trans->tch_rtp_create = true;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Assign call (if not done yet) */</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->assignment_done == false) {</span><br><span style="color: hsl(0, 100%, 40%);">- rc = msc_mgcp_call_assignment(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->assignment_done = true;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- rc = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-/* Trigger TCH_RTP_CREATE acknowledgement */</span><br><span style="color: hsl(0, 100%, 40%);">-int gsm48_tch_rtp_create(struct gsm_trans *trans)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- /* This function is called as soon as the port, on which the</span><br><span style="color: hsl(0, 100%, 40%);">- * mgcp-gw expects the incoming RTP stream from the remote</span><br><span style="color: hsl(0, 100%, 40%);">- * end (e.g. Asterisk) is known. */</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_subscriber_connection *conn = trans->conn;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_network *network = conn->network;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recv_rtp_sock(network, trans, MNCC_RTP_CREATE);</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int tch_rtp_connect(struct gsm_network *net, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc_rtp *rtp = arg;</span><br><span style="color: hsl(0, 100%, 40%);">- struct in_addr addr;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Find callref */</span><br><span style="color: hsl(0, 100%, 40%);">- trans = trans_find_by_callref(net, rtp->callref);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR, "RTP connect for non-existing trans\n");</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recv_rtp_err(net, rtp->callref, MNCC_RTP_CONNECT);</span><br><span style="color: hsl(0, 100%, 40%);">- return -EIO;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- log_set_context(LOG_CTX_VLR_SUBSCR, trans->vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans->conn) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR, "RTP connect for trans without conn\n");</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_recv_rtp_err(net, rtp->callref, MNCC_RTP_CONNECT);</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- addr.s_addr = osmo_htonl(rtp->ip);</span><br><span style="color: hsl(0, 100%, 40%);">- return msc_mgcp_call_complete(trans, rtp->port, inet_ntoa(addr));</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static struct downstate {</span><br><span style="color: hsl(0, 100%, 40%);">- uint32_t states;</span><br><span style="color: hsl(0, 100%, 40%);">- int type;</span><br><span style="color: hsl(0, 100%, 40%);">- int (*rout) (struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(0, 100%, 40%);">-} downstatelist[] = {</span><br><span style="color: hsl(0, 100%, 40%);">- /* mobile originating call establishment */</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_INITIATED), /* 5.2.1.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_CALL_PROC_REQ, gsm48_cc_tx_call_proc_and_assign},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.2 | 5.2.1.5 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_ALERT_REQ, gsm48_cc_tx_alerting},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC) | SBIT(GSM_CSTATE_CALL_DELIVERED), /* 5.2.1.2 | 5.2.1.6 | 5.2.1.6 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_SETUP_RSP, gsm48_cc_tx_connect},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.4.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_PROGRESS_REQ, gsm48_cc_tx_progress},</span><br><span style="color: hsl(0, 100%, 40%);">- /* mobile terminating call establishment */</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_NULL), /* 5.2.2.1 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_SETUP_REQ, gsm48_cc_tx_setup},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_CONNECT_REQUEST),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_SETUP_COMPL_REQ, gsm48_cc_tx_connect_ack},</span><br><span style="color: hsl(0, 100%, 40%);">- /* signalling during call */</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_NOTIFY_REQ, gsm48_cc_tx_notify},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_FACILITY_REQ, gsm48_cc_tx_facility},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES,</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_START_DTMF_RSP, gsm48_cc_tx_start_dtmf_ack},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES,</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_START_DTMF_REJ, gsm48_cc_tx_start_dtmf_rej},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES,</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_STOP_DTMF_RSP, gsm48_cc_tx_stop_dtmf_ack},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_HOLD_CNF, gsm48_cc_tx_hold_ack},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_HOLD_REJ, gsm48_cc_tx_hold_rej},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_RETRIEVE_CNF, gsm48_cc_tx_retrieve_ack},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_RETRIEVE_REJ, gsm48_cc_tx_retrieve_rej},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_MODIFY_REQ, gsm48_cc_tx_modify},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_MO_ORIG_MODIFY),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_MODIFY_RSP, gsm48_cc_tx_modify_complete},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_MO_ORIG_MODIFY),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_MODIFY_REJ, gsm48_cc_tx_modify_reject},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_USERINFO_REQ, gsm48_cc_tx_userinfo},</span><br><span style="color: hsl(0, 100%, 40%);">- /* clearing */</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_INITIATED),</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_REJ_REQ, gsm48_cc_tx_release_compl},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_DISCONNECT_IND) - SBIT(GSM_CSTATE_RELEASE_REQ) - SBIT(GSM_CSTATE_DISCONNECT_REQ), /* 5.4.4 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_DISC_REQ, gsm48_cc_tx_disconnect},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ), /* 5.4.3.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- MNCC_REL_REQ, gsm48_cc_tx_release},</span><br><span style="color: hsl(0, 100%, 40%);">-};</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-#define DOWNSLLEN \</span><br><span style="color: hsl(0, 100%, 40%);">- (sizeof(downstatelist) / sizeof(struct downstate))</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-int mncc_tx_to_cc(struct gsm_network *net, int msg_type, void *arg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- int i, rc = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans = NULL, *transt;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_subscriber_connection *conn = NULL;</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_mncc *data = arg, rel;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DMNCC, "receive message %s\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* handle special messages */</span><br><span style="color: hsl(0, 100%, 40%);">- switch(msg_type) {</span><br><span style="color: hsl(0, 100%, 40%);">- case MNCC_BRIDGE:</span><br><span style="color: hsl(0, 100%, 40%);">- rc = tch_bridge(net, arg);</span><br><span style="color: hsl(0, 100%, 40%);">- if (rc < 0)</span><br><span style="color: hsl(0, 100%, 40%);">- disconnect_bridge(net, arg, -rc);</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">- case MNCC_RTP_CREATE:</span><br><span style="color: hsl(0, 100%, 40%);">- return tch_rtp_create(net, data->callref);</span><br><span style="color: hsl(0, 100%, 40%);">- case MNCC_RTP_CONNECT:</span><br><span style="color: hsl(0, 100%, 40%);">- return tch_rtp_connect(net, arg);</span><br><span style="color: hsl(0, 100%, 40%);">- case MNCC_RTP_FREE:</span><br><span style="color: hsl(0, 100%, 40%);">- /* unused right now */</span><br><span style="color: hsl(0, 100%, 40%);">- return -EIO;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- case MNCC_FRAME_DROP:</span><br><span style="color: hsl(0, 100%, 40%);">- case MNCC_FRAME_RECV:</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_TCHF_FRAME:</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_TCHF_FRAME_EFR:</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_TCHH_FRAME:</span><br><span style="color: hsl(0, 100%, 40%);">- case GSM_TCH_FRAME_AMR:</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DMNCC, LOGL_ERROR, "RTP streams must be handled externally; %s not supported.\n",</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">- return -ENOTSUP;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- memset(&rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">- rel.callref = data->callref;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Find callref */</span><br><span style="color: hsl(0, 100%, 40%);">- trans = trans_find_by_callref(net, data->callref);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Callref unknown */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans) {</span><br><span style="color: hsl(0, 100%, 40%);">- struct vlr_subscr *vsub;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (msg_type != MNCC_SETUP_REQ) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC with "</span><br><span style="color: hsl(0, 100%, 40%);">- "unknown callref %d\n", data->called.number,</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type), data->callref);</span><br><span style="color: hsl(0, 100%, 40%);">- /* Invalid call reference */</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_INVAL_TRANS_ID);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- if (!data->called.number[0] && !data->imsi[0]) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC with "</span><br><span style="color: hsl(0, 100%, 40%);">- "no number or IMSI\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">- /* Invalid number */</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_INV_NR_FORMAT);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* New transaction due to setup, find subscriber */</span><br><span style="color: hsl(0, 100%, 40%);">- if (data->called.number[0])</span><br><span style="color: hsl(0, 100%, 40%);">- vsub = vlr_subscr_find_by_msisdn(net->vlr,</span><br><span style="color: hsl(0, 100%, 40%);">- data->called.number);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- vsub = vlr_subscr_find_by_imsi(net->vlr, data->imsi);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* update the subscriber we deal with */</span><br><span style="color: hsl(0, 100%, 40%);">- log_set_context(LOG_CTX_VLR_SUBSCR, vsub);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* If subscriber is not found */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!vsub) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC with "</span><br><span style="color: hsl(0, 100%, 40%);">- "unknown subscriber %s\n", data->called.number,</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type), data->called.number);</span><br><span style="color: hsl(0, 100%, 40%);">- /* Unknown subscriber */</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_UNASSIGNED_NR);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* If subscriber is not "attached" */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!vsub->lac) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC with "</span><br><span style="color: hsl(0, 100%, 40%);">- "detached subscriber %s\n", data->called.number,</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type), vlr_subscr_name(vsub));</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_put(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- /* Temporarily out of order */</span><br><span style="color: hsl(0, 100%, 40%);">- return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_DEST_OOO);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create transaction */</span><br><span style="color: hsl(0, 100%, 40%);">- trans = trans_alloc(net, vsub, GSM48_PDISC_CC, 0xff, data->callref);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "No memory for trans.\n");</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_put(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- /* Ressource unavailable */</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(0, 100%, 40%);">- return -ENOMEM;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Find conn */</span><br><span style="color: hsl(0, 100%, 40%);">- conn = connection_for_subscr(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* If subscriber has no conn */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!conn) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* find transaction with this subscriber already paging */</span><br><span style="color: hsl(0, 100%, 40%);">- llist_for_each_entry(transt, &net->trans_list, entry) {</span><br><span style="color: hsl(0, 100%, 40%);">- /* Transaction of our conn? */</span><br><span style="color: hsl(0, 100%, 40%);">- if (transt == trans ||</span><br><span style="color: hsl(0, 100%, 40%);">- transt->vsub != vsub)</span><br><span style="color: hsl(0, 100%, 40%);">- continue;</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC with "</span><br><span style="color: hsl(0, 100%, 40%);">- "unallocated channel, paging already "</span><br><span style="color: hsl(0, 100%, 40%);">- "started for lac %d.\n",</span><br><span style="color: hsl(0, 100%, 40%);">- data->called.number,</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type), vsub->lac);</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_put(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* store setup information until paging succeeds */</span><br><span style="color: hsl(0, 100%, 40%);">- memcpy(&trans->cc.msg, data, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Request a channel */</span><br><span style="color: hsl(0, 100%, 40%);">- trans->paging_request = subscr_request_conn(</span><br><span style="color: hsl(0, 100%, 40%);">- vsub,</span><br><span style="color: hsl(0, 100%, 40%);">- setup_trig_pag_evt,</span><br><span style="color: hsl(0, 100%, 40%);">- trans,</span><br><span style="color: hsl(0, 100%, 40%);">- "MNCC: establish call");</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans->paging_request) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DCC, LOGL_ERROR, "Failed to allocate paging token.\n");</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_put(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_put(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Assign conn */</span><br><span style="color: hsl(0, 100%, 40%);">- trans->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_CC);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->dlci = 0x00; /* SAPI=0, not SACCH */</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_put(vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- } else {</span><br><span style="color: hsl(0, 100%, 40%);">- /* update the subscriber we deal with */</span><br><span style="color: hsl(0, 100%, 40%);">- log_set_context(LOG_CTX_VLR_SUBSCR, trans->vsub);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (trans->conn)</span><br><span style="color: hsl(0, 100%, 40%);">- conn = trans->conn;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* if paging did not respond yet */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!conn) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC in paging state\n",</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_msisdn_or_name(trans->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type));</span><br><span style="color: hsl(0, 100%, 40%);">- mncc_set_cause(&rel, GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_CC_CAUSE_NORM_CALL_CLEAR);</span><br><span style="color: hsl(0, 100%, 40%);">- if (msg_type == MNCC_REL_REQ)</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(net, trans, MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- else</span><br><span style="color: hsl(0, 100%, 40%);">- rc = mncc_recvmsg(net, trans, MNCC_REL_IND, &rel);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->callref = 0;</span><br><span style="color: hsl(0, 100%, 40%);">- trans_free(trans);</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">- } else {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(ti %02x sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MNCC in state %d (%s)\n",</span><br><span style="color: hsl(0, 100%, 40%);">- trans->transaction_id,</span><br><span style="color: hsl(0, 100%, 40%);">- vlr_subscr_msisdn_or_name(trans->conn->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- get_mncc_name(msg_type), trans->cc.state,</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_state_name(trans->cc.state));</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Find function for current state and message */</span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < DOWNSLLEN; i++)</span><br><span style="color: hsl(0, 100%, 40%);">- if ((msg_type == downstatelist[i].type)</span><br><span style="color: hsl(0, 100%, 40%);">- && ((1 << trans->cc.state) & downstatelist[i].states))</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- if (i == DOWNSLLEN) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Message unhandled at this state.\n");</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rc = downstatelist[i].rout(trans, arg);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static struct datastate {</span><br><span style="color: hsl(0, 100%, 40%);">- uint32_t states;</span><br><span style="color: hsl(0, 100%, 40%);">- int type;</span><br><span style="color: hsl(0, 100%, 40%);">- int (*rout) (struct gsm_trans *trans, struct msgb *msg);</span><br><span style="color: hsl(0, 100%, 40%);">-} datastatelist[] = {</span><br><span style="color: hsl(0, 100%, 40%);">- /* mobile originating call establishment */</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_NULL), /* 5.2.1.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_SETUP, gsm48_cc_rx_setup},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_NULL), /* 5.2.1.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_EMERG_SETUP, gsm48_cc_rx_setup},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_CONNECT_IND), /* 5.2.1.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_CONNECT_ACK, gsm48_cc_rx_connect_ack},</span><br><span style="color: hsl(0, 100%, 40%);">- /* mobile terminating call establishment */</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_CALL_PRESENT), /* 5.2.2.3.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_CALL_CONF, gsm48_cc_rx_call_conf},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_CALL_PRESENT) | SBIT(GSM_CSTATE_MO_TERM_CALL_CONF), /* ???? | 5.2.2.3.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_ALERTING, gsm48_cc_rx_alerting},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_CALL_PRESENT) | SBIT(GSM_CSTATE_MO_TERM_CALL_CONF) | SBIT(GSM_CSTATE_CALL_RECEIVED), /* (5.2.2.6) | 5.2.2.6 | 5.2.2.6 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_CONNECT, gsm48_cc_rx_connect},</span><br><span style="color: hsl(0, 100%, 40%);">- /* signalling during call */</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES - SBIT(GSM_CSTATE_NULL),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_FACILITY, gsm48_cc_rx_facility},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_NOTIFY, gsm48_cc_rx_notify},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_START_DTMF, gsm48_cc_rx_start_dtmf},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_STOP_DTMF, gsm48_cc_rx_stop_dtmf},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_STATUS_ENQ, gsm48_cc_rx_status_enq},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_HOLD, gsm48_cc_rx_hold},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_RETR, gsm48_cc_rx_retrieve},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_MODIFY, gsm48_cc_rx_modify},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_MO_TERM_MODIFY),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_MODIFY_COMPL, gsm48_cc_rx_modify_complete},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_MO_TERM_MODIFY),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_MODIFY_REJECT, gsm48_cc_rx_modify_reject},</span><br><span style="color: hsl(0, 100%, 40%);">- {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_USER_INFO, gsm48_cc_rx_userinfo},</span><br><span style="color: hsl(0, 100%, 40%);">- /* clearing */</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ), /* 5.4.3.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_DISCONNECT, gsm48_cc_rx_disconnect},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES - SBIT(GSM_CSTATE_NULL), /* 5.4.4.1.2.2 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_RELEASE, gsm48_cc_rx_release},</span><br><span style="color: hsl(0, 100%, 40%);">- {ALL_STATES, /* 5.4.3.4 */</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_RELEASE_COMPL, gsm48_cc_rx_release_compl},</span><br><span style="color: hsl(0, 100%, 40%);">-};</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-#define DATASLLEN \</span><br><span style="color: hsl(0, 100%, 40%);">- (sizeof(datastatelist) / sizeof(struct datastate))</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-static int gsm0408_rcv_cc(struct gsm_subscriber_connection *conn, struct msgb *msg)</span><br><span style="color: hsl(0, 100%, 40%);">-{</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t msg_type = gsm48_hdr_msg_type(gh);</span><br><span style="color: hsl(0, 100%, 40%);">- uint8_t transaction_id = gsm48_hdr_trans_id_flip_ti(gh);</span><br><span style="color: hsl(0, 100%, 40%);">- struct gsm_trans *trans = NULL;</span><br><span style="color: hsl(0, 100%, 40%);">- int i, rc = 0;</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (msg_type & 0x80) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "MSG 0x%2x not defined for PD error\n", msg_type);</span><br><span style="color: hsl(0, 100%, 40%);">- return -EINVAL;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- if (!conn->vsub) {</span><br><span style="color: hsl(0, 100%, 40%);">- LOGP(DCC, LOGL_ERROR, "Invalid conn: no subscriber\n");</span><br><span style="color: hsl(0, 100%, 40%);">- return -EINVAL;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Find transaction */</span><br><span style="color: hsl(0, 100%, 40%);">- trans = trans_find_by_id(conn, GSM48_PDISC_CC, transaction_id);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">-#if BEFORE_MSCSPLIT</span><br><span style="color: hsl(0, 100%, 40%);">- /* Re-enable this log output once we can obtain this information via</span><br><span style="color: hsl(0, 100%, 40%);">- * A-interface, see OS#2391. */</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "(bts %d trx %d ts %d ti %x sub %s) "</span><br><span style="color: hsl(0, 100%, 40%);">- "Received '%s' from MS in state %d (%s)\n",</span><br><span style="color: hsl(0, 100%, 40%);">- conn->bts->nr, conn->lchan->ts->trx->nr, conn->lchan->ts->nr,</span><br><span style="color: hsl(0, 100%, 40%);">- transaction_id, vlr_subscr_msisdn_or_name(conn->vsub),</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_msg_name(msg_type), trans?(trans->cc.state):0,</span><br><span style="color: hsl(0, 100%, 40%);">- gsm48_cc_state_name(trans?(trans->cc.state):0));</span><br><span style="color: hsl(0, 100%, 40%);">-#endif</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create transaction */</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Unknown transaction ID %x, "</span><br><span style="color: hsl(0, 100%, 40%);">- "creating new trans.\n", transaction_id);</span><br><span style="color: hsl(0, 100%, 40%);">- /* Create transaction */</span><br><span style="color: hsl(0, 100%, 40%);">- trans = trans_alloc(conn->network, conn->vsub,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_PDISC_CC,</span><br><span style="color: hsl(0, 100%, 40%);">- transaction_id, new_callref++);</span><br><span style="color: hsl(0, 100%, 40%);">- if (!trans) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "No memory for trans.\n");</span><br><span style="color: hsl(0, 100%, 40%);">- rc = gsm48_tx_simple(conn,</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_PDISC_CC | (transaction_id << 4),</span><br><span style="color: hsl(0, 100%, 40%);">- GSM48_MT_CC_RELEASE_COMPL);</span><br><span style="color: hsl(0, 100%, 40%);">- return -ENOMEM;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- /* Assign transaction */</span><br><span style="color: hsl(0, 100%, 40%);">- trans->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_CC);</span><br><span style="color: hsl(0, 100%, 40%);">- trans->dlci = OMSC_LINKID_CB(msg); /* DLCI as received from BSC */</span><br><span style="color: hsl(0, 100%, 40%);">- cm_service_request_concludes(conn, msg);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* find function for current state and message */</span><br><span style="color: hsl(0, 100%, 40%);">- for (i = 0; i < DATASLLEN; i++)</span><br><span style="color: hsl(0, 100%, 40%);">- if ((msg_type == datastatelist[i].type)</span><br><span style="color: hsl(0, 100%, 40%);">- && ((1 << trans->cc.state) & datastatelist[i].states))</span><br><span style="color: hsl(0, 100%, 40%);">- break;</span><br><span style="color: hsl(0, 100%, 40%);">- if (i == DATASLLEN) {</span><br><span style="color: hsl(0, 100%, 40%);">- DEBUGP(DCC, "Message unhandled at this state.\n");</span><br><span style="color: hsl(0, 100%, 40%);">- return 0;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- assert(trans->vsub);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- rc = datastatelist[i].rout(trans, msg);</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- msc_subscr_conn_communicating(conn);</span><br><span style="color: hsl(0, 100%, 40%);">- return rc;</span><br><span style="color: hsl(0, 100%, 40%);">-}</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span> static bool msg_is_initially_permitted(const struct gsm48_hdr *hdr)</span><br><span> {</span><br><span> uint8_t pdisc = gsm48_hdr_pdisc(hdr);</span><br><span>@@ -3460,6 +1412,8 @@</span><br><span> }</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+extern int gsm0408_rcv_cc(struct gsm_subscriber_connection *conn, struct msgb *msg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> /* Main entry point for GSM 04.08/44.008 Layer 3 data (e.g. from the BSC). */</span><br><span> int gsm0408_dispatch(struct gsm_subscriber_connection *conn, struct msgb *msg)</span><br><span> {</span><br><span>diff --git a/src/libmsc/gsm_04_08_cc.c b/src/libmsc/gsm_04_08_cc.c</span><br><span>new file mode 100644</span><br><span>index 0000000..8becd05</span><br><span>--- /dev/null</span><br><span>+++ b/src/libmsc/gsm_04_08_cc.c</span><br><span>@@ -0,0 +1,2120 @@</span><br><span style="color: hsl(120, 100%, 40%);">+/* GSM Mobile Radio Interface Layer 3 Call Control */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* (C) 2008-2016 by Harald Welte <laforge@gnumonks.org></span><br><span style="color: hsl(120, 100%, 40%);">+ * (C) 2008-2012 by Holger Hans Peter Freyther <zecke@selfish.org></span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * All Rights Reserved</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is free software; you can redistribute it and/or modify</span><br><span style="color: hsl(120, 100%, 40%);">+ * it under the terms of the GNU Affero General Public License as published by</span><br><span style="color: hsl(120, 100%, 40%);">+ * the Free Software Foundation; either version 3 of the License, or</span><br><span style="color: hsl(120, 100%, 40%);">+ * (at your option) any later version.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is distributed in the hope that it will be useful,</span><br><span style="color: hsl(120, 100%, 40%);">+ * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><br><span style="color: hsl(120, 100%, 40%);">+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><br><span style="color: hsl(120, 100%, 40%);">+ * GNU Affero General Public License for more details.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * You should have received a copy of the GNU Affero General Public License</span><br><span style="color: hsl(120, 100%, 40%);">+ * along with this program. If not, see <http://www.gnu.org/licenses/>.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <stdio.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <stdlib.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <string.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <stdbool.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <errno.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <time.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <netinet/in.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <regex.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <sys/types.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include "bscconfig.h"</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/db.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/debug.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_data.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_subscriber.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_04_11.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_04_08.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_04_80.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_04_14.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/gsm_09_11.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/signal.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/transaction.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/silent_call.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/osmo_msc.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/mncc_int.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/abis/e1_input.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/bitvec.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/vlr.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/msc_ifaces.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/gsm48.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/gsm0480.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/gsm_utils.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/protocol/gsm_04_08.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/msgb.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/talloc.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/utils.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/byteswap.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/tlv.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/crypt/auth.h></span><br><span style="color: hsl(120, 100%, 40%);">+#ifdef BUILD_IU</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/ranap/iu_client.h></span><br><span style="color: hsl(120, 100%, 40%);">+#endif</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/msc_ifaces.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/a_iface.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/msc/msc_mgcp.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <assert.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static uint32_t new_callref = 0x80000001;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Call Control */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+void cc_tx_to_mncc(struct gsm_network *net, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ net->mncc_recv(net, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_cc_tx_notify_ss(struct gsm_trans *trans, const char *message)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *ss_notify;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ ss_notify = gsm0480_create_notifySS(message);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!ss_notify)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -1;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm0480_wrap_invoke(ss_notify, GSM0480_OP_CODE_NOTIFY_SS, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t *data = msgb_push(ss_notify, 1);</span><br><span style="color: hsl(120, 100%, 40%);">+ data[0] = ss_notify->len - 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ gh = (struct gsm48_hdr *) msgb_push(ss_notify, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(ss_notify, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* FIXME: this count_statistics is a state machine behaviour. we should convert</span><br><span style="color: hsl(120, 100%, 40%);">+ * the complete call control into a state machine. Afterwards we can move this</span><br><span style="color: hsl(120, 100%, 40%);">+ * code into state transitions.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+static void count_statistics(struct gsm_trans *trans, int new_state)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int old_state = trans->cc.state;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct rate_ctr_group *msc = trans->net->msc_ctrs;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (old_state == new_state)</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* state incoming */</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (new_state) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_CSTATE_ACTIVE:</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_counter_inc(trans->net->active_calls);</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_ACTIVE]);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* state outgoing */</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (old_state) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_CSTATE_ACTIVE:</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_counter_dec(trans->net->active_calls);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (new_state == GSM_CSTATE_DISCONNECT_REQ ||</span><br><span style="color: hsl(120, 100%, 40%);">+ new_state == GSM_CSTATE_DISCONNECT_IND)</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_COMPLETE]);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_INCOMPLETE]);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* The entire call control code is written in accordance with Figure 7.10c</span><br><span style="color: hsl(120, 100%, 40%);">+ * for 'very early assignment', i.e. we allocate a TCH/F during IMMEDIATE</span><br><span style="color: hsl(120, 100%, 40%);">+ * ASSIGN, then first use that TCH/F for signalling and later MODE MODIFY</span><br><span style="color: hsl(120, 100%, 40%);">+ * it for voice */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void new_cc_state(struct gsm_trans *trans, int state)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ if (state > 31 || state < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(ti %02x sub %s) new state %s -> %s\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->transaction_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_name(trans->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_state_name(trans->cc.state),</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_state_name(state));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ count_statistics(trans, state);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->cc.state = state;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_status(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC STATUS");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t *cause, *call_state;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_STATUS;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ cause = msgb_put(msg, 3);</span><br><span style="color: hsl(120, 100%, 40%);">+ cause[0] = 2;</span><br><span style="color: hsl(120, 100%, 40%);">+ cause[1] = GSM48_CAUSE_CS_GSM | GSM48_CAUSE_LOC_USER;</span><br><span style="color: hsl(120, 100%, 40%);">+ cause[2] = 0x80 | 30; /* response to status inquiry */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ call_state = msgb_put(msg, 1);</span><br><span style="color: hsl(120, 100%, 40%);">+ call_state[0] = 0xc0 | 0x00;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void gsm48_stop_cc_timer(struct gsm_trans *trans)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ if (osmo_timer_pending(&trans->cc.timer)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "stopping pending timer T%x\n", trans->cc.Tcurrent);</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_timer_del(&trans->cc.timer);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->cc.Tcurrent = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int mncc_recvmsg(struct gsm_network *net, struct gsm_trans *trans,</span><br><span style="color: hsl(120, 100%, 40%);">+ int msg_type, struct gsm_mncc *mncc)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg;</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned char *data;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DMNCC, "transmit message %s\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#if BEFORE_MSCSPLIT</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Re-enable this log output once we can obtain this information via</span><br><span style="color: hsl(120, 100%, 40%);">+ * A-interface, see OS#2391. */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans)</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->conn && trans->conn->lchan)</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts %d trx %d ts %d ti %x sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Sending '%s' to MNCC.\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->conn->lchan->ts->trx->bts->nr,</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->conn->lchan->ts->trx->nr,</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->conn->lchan->ts->nr, trans->transaction_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_msisdn_or_name(trans->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Sending '%s' to MNCC.\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_msisdn_or_name(trans->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub -) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Sending '%s' to MNCC.\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+#else</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Sending '%s' to MNCC.\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+#endif</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc->msg_type = msg_type;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ msg = msgb_alloc(sizeof(struct gsm_mncc), "MNCC");</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!msg)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOMEM;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ data = msgb_put(msg, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(data, mncc, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ cc_tx_to_mncc(net, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+int mncc_release_ind(struct gsm_network *net, struct gsm_trans *trans,</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t callref, int location, int value)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc rel;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&rel, 0, sizeof(rel));</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.callref = callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_set_cause(&rel, location, value);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans && trans->cc.state == GSM_CSTATE_RELEASE_REQ)</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(net, trans, MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(net, trans, MNCC_REL_IND, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Call Control Specific transaction release.</span><br><span style="color: hsl(120, 100%, 40%);">+ * gets called by trans_free, DO NOT CALL YOURSELF! */</span><br><span style="color: hsl(120, 100%, 40%);">+void _gsm48_cc_trans_free(struct gsm_trans *trans)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Initiate the teardown of the related connections on the MGW */</span><br><span style="color: hsl(120, 100%, 40%);">+ msc_mgcp_call_release(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* send release to L4, if callref still exists */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->callref) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Ressource unavailable */</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* This is a final freeing of the transaction. The MNCC release may have triggered the</span><br><span style="color: hsl(120, 100%, 40%);">+ * T308 release timer, but we don't have the luxury of graceful CC Release here. */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->cc.state != GSM_CSTATE_NULL)</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_NULL);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* call-back from paging the B-end of the connection */</span><br><span style="color: hsl(120, 100%, 40%);">+static int setup_trig_pag_evt(unsigned int hooknum, unsigned int event,</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg, void *_conn, void *_transt)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_subscriber_connection *conn = _conn;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *transt = _transt;</span><br><span style="color: hsl(120, 100%, 40%);">+ enum gsm_paging_event paging_event = event;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_ASSERT(!transt->conn);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (paging_event) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_PAGING_SUCCEEDED:</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Paging subscr %s succeeded!\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_msisdn_or_name(transt->vsub));</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_ASSERT(conn);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Assign conn */</span><br><span style="color: hsl(120, 100%, 40%);">+ transt->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_CC);</span><br><span style="color: hsl(120, 100%, 40%);">+ transt->paging_request = NULL;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* send SETUP request to called party */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_tx_setup(transt, &transt->cc.msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_PAGING_EXPIRED:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_PAGING_BUSY:</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Paging subscr %s %s!\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_msisdn_or_name(transt->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ paging_event == GSM_PAGING_EXPIRED ? "expired" : "busy");</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Temporarily out of order */</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_release_ind(transt->net, transt,</span><br><span style="color: hsl(120, 100%, 40%);">+ transt->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_DEST_OOO);</span><br><span style="color: hsl(120, 100%, 40%);">+ transt->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ transt->paging_request = NULL;</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(transt);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* bridge channels of two transactions */</span><br><span style="color: hsl(120, 100%, 40%);">+static int tch_bridge(struct gsm_network *net, struct gsm_mncc_bridge *bridge)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans1 = trans_find_by_callref(net, bridge->callref[0]);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans2 = trans_find_by_callref(net, bridge->callref[1]);</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans1 || !trans2)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EIO;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans1->conn || !trans2->conn)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EIO;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Which subscriber do we want to track trans1 or trans2? */</span><br><span style="color: hsl(120, 100%, 40%);">+ log_set_context(LOG_CTX_VLR_SUBSCR, trans1->vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Bridge RTP streams */</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = msc_mgcp_call_complete(trans1, trans2->conn->rtp.local_port_cn,</span><br><span style="color: hsl(120, 100%, 40%);">+ trans2->conn->rtp.local_addr_cn);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = msc_mgcp_call_complete(trans2, trans1->conn->rtp.local_port_cn,</span><br><span style="color: hsl(120, 100%, 40%);">+ trans1->conn->rtp.local_addr_cn);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc)</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_status_enq(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "-> STATUS ENQ\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_cc_tx_status(trans, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_release(struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_disconnect(struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void gsm48_cc_timeout(void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ int disconnect = 0, release = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ int mo_cause = GSM48_CC_CAUSE_RECOVERY_TIMER;</span><br><span style="color: hsl(120, 100%, 40%);">+ int mo_location = GSM48_CAUSE_LOC_USER;</span><br><span style="color: hsl(120, 100%, 40%);">+ int l4_cause = GSM48_CC_CAUSE_NORMAL_UNSPEC;</span><br><span style="color: hsl(120, 100%, 40%);">+ int l4_location = GSM48_CAUSE_LOC_PRN_S_LU;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc mo_rel, l4_rel;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&mo_rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_rel.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&l4_rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ l4_rel.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch(trans->cc.Tcurrent) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x303:</span><br><span style="color: hsl(120, 100%, 40%);">+ release = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x310:</span><br><span style="color: hsl(120, 100%, 40%);">+ disconnect = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x313:</span><br><span style="color: hsl(120, 100%, 40%);">+ disconnect = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* unknown, did not find it in the specs */</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x301:</span><br><span style="color: hsl(120, 100%, 40%);">+ disconnect = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ l4_cause = GSM48_CC_CAUSE_USER_NOTRESPOND;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x308:</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans->cc.T308_second) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* restart T308 a second time */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_tx_release(trans, &trans->cc.msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->cc.T308_second = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ break; /* stay in release state */</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x306:</span><br><span style="color: hsl(120, 100%, 40%);">+ release = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_cause = trans->cc.msg.cause.value;</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_location = trans->cc.msg.cause.location;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case 0x323:</span><br><span style="color: hsl(120, 100%, 40%);">+ disconnect = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ release = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (release && trans->callref) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* process release towards layer 4 */</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ l4_location, l4_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disconnect && trans->callref) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* process disconnect towards layer 4 */</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_set_cause(&l4_rel, l4_location, l4_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recvmsg(trans->net, trans, MNCC_DISC_IND, &l4_rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* process disconnect towards mobile station */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disconnect || release) {</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_set_cause(&mo_rel, mo_location, mo_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_rel.cause.diag[0] = ((trans->cc.Tcurrent & 0xf00) >> 8) + '0';</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_rel.cause.diag[1] = ((trans->cc.Tcurrent & 0x0f0) >> 4) + '0';</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_rel.cause.diag[2] = (trans->cc.Tcurrent & 0x00f) + '0';</span><br><span style="color: hsl(120, 100%, 40%);">+ mo_rel.cause.diag_len = 3;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disconnect)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_tx_disconnect(trans, &mo_rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (release)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_tx_release(trans, &mo_rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* disconnect both calls from the bridge */</span><br><span style="color: hsl(120, 100%, 40%);">+static inline void disconnect_bridge(struct gsm_network *net,</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc_bridge *bridge, int err)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans0 = trans_find_by_callref(net, bridge->callref[0]);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans1 = trans_find_by_callref(net, bridge->callref[1]);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc mx_rel;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans0 || !trans1)</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Failed to bridge TCH for calls %x <-> %x :: %s \n",</span><br><span style="color: hsl(120, 100%, 40%);">+ trans0->callref, trans1->callref, strerror(err));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&mx_rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_set_cause(&mx_rel, GSM48_CAUSE_LOC_INN_NET,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_CHAN_UNACCEPT);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ mx_rel.callref = trans0->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_tx_disconnect(trans0, &mx_rel);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ mx_rel.callref = trans1->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_tx_disconnect(trans1, &mx_rel);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void gsm48_start_cc_timer(struct gsm_trans *trans, int current,</span><br><span style="color: hsl(120, 100%, 40%);">+ int sec, int micro)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "starting timer T%x with %d seconds\n", current, sec);</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_timer_setup(&trans->cc.timer, gsm48_cc_timeout, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_timer_schedule(&trans->cc.timer, sec, micro);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->cc.Tcurrent = current;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_setup(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t msg_type = gsm48_hdr_msg_type(gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc setup;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&setup, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* emergency setup is identified by msg_type */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msg_type == GSM48_MT_CC_EMERG_SETUP) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_EMERGENCY;</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.emergency = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* use destination number as configured by user (if any) */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->net->emergency.route_to_msisdn) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_CALLED;</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.called.type = 0; /* unknown */</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.called.plan = 0; /* unknown */</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(setup.called.number,</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->net->emergency.route_to_msisdn);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* use subscriber as calling party number */</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_CALLING;</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(setup.calling.number, trans->vsub->msisdn);</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(setup.imsi, trans->vsub->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_bearer_cap(&setup.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create a copy of the bearer capability</span><br><span style="color: hsl(120, 100%, 40%);">+ * in the transaction struct, so we can use</span><br><span style="color: hsl(120, 100%, 40%);">+ * this information later */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap,&setup.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&setup.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* called party bcd number */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CALLED_BCD)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_CALLED;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_called(&setup.called,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CALLED_BCD)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_useruser(&setup.useruser,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&setup.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* CLIR suppression */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CLIR_SUPP))</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.clir.sup = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* CLIR invocation */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CLIR_INVOC))</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.clir.inv = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cc cap */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CC_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.fields |= MNCC_F_CCCAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cccap(&setup.cccap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_INITIATED);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DCC, setup.emergency ? LOGL_NOTICE : LOGL_INFO, "Subscriber %s (%s) sends %sSETUP to %s\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_name(trans->vsub), trans->vsub->msisdn, setup.emergency ? "EMERGENCY_" : "",</span><br><span style="color: hsl(120, 100%, 40%);">+ setup.called.number);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MO_SETUP]);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* indicate setup to MNCC */</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recvmsg(trans->net, trans, MNCC_SETUP_IND, &setup);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* MNCC code will modify the channel asynchronously, we should</span><br><span style="color: hsl(120, 100%, 40%);">+ * ipaccess-bind only after the modification has been made to the</span><br><span style="color: hsl(120, 100%, 40%);">+ * lchan->tch_mode */</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_setup(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC STUP");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *setup = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc, trans_id;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* transaction id must not be assigned */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->transaction_id != 0xff) { /* unasssigned */</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "TX Setup with assigned transaction. "</span><br><span style="color: hsl(120, 100%, 40%);">+ "This is not allowed!\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Temporarily out of order */</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Get free transaction_id */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_id = trans_assign_trans_id(trans->net, trans->vsub,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_PDISC_CC, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans_id < 0) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* no free transaction ID */</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_release_ind(trans->net, trans, trans->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->transaction_id = trans_id;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_SETUP;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x303, GSM48_T303);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_BEARER_CAP) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create a copy of the bearer capability in the transaction struct, so we</span><br><span style="color: hsl(120, 100%, 40%);">+ * can use this information later */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap, &setup->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_bearer_cap(msg, 0, &setup->bearer_cap);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &setup->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_progress(msg, 0, &setup->progress);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* calling party BCD number */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_CALLING)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_calling(msg, &setup->calling);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* called party BCD number */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_CALLED)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_called(msg, &setup->called);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &setup->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* redirecting party BCD number */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_REDIRECTING)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_redirecting(msg, &setup->redirecting);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* signal */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (setup->fields & MNCC_F_SIGNAL)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_signal(msg, setup->signal);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_CALL_PRESENT);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MT_SETUP]);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_call_conf(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc call_conf;</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x310, GSM48_T310);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&call_conf, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ call_conf.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+#if 0</span><br><span style="color: hsl(120, 100%, 40%);">+ /* repeat */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_REPEAT_CIR))</span><br><span style="color: hsl(120, 100%, 40%);">+ call_conf.repeat = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_REPEAT_SEQ))</span><br><span style="color: hsl(120, 100%, 40%);">+ call_conf.repeat = 2;</span><br><span style="color: hsl(120, 100%, 40%);">+#endif</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ call_conf.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_bearer_cap(&call_conf.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create a copy of the bearer capability</span><br><span style="color: hsl(120, 100%, 40%);">+ * in the transaction struct, so we can use</span><br><span style="color: hsl(120, 100%, 40%);">+ * this information later */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap,&call_conf.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ call_conf.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cause(&call_conf.cause,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cc cap */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CC_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ call_conf.fields |= MNCC_F_CCCAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cccap(&call_conf.cccap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CC_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* IMSI of called subscriber */</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(call_conf.imsi, trans->vsub->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_MO_TERM_CALL_CONF);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Assign call (if not done yet) */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->assignment_done == false) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = msc_mgcp_call_assignment(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->assignment_done = true;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* don't continue, if there were problems with</span><br><span style="color: hsl(120, 100%, 40%);">+ * the call assignment. */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc)</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_CALL_CONF_IND,</span><br><span style="color: hsl(120, 100%, 40%);">+ &call_conf);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_call_proc_and_assign(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *proceeding = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC PROC");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_CALL_PROC;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_MO_CALL_PROC);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (proceeding->fields & MNCC_F_BEARER_CAP) {</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_bearer_cap(msg, 0, &proceeding->bearer_cap);</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap, &proceeding->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (proceeding->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &proceeding->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (proceeding->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_progress(msg, 0, &proceeding->progress);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc)</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Assign call (if not done yet) */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->assignment_done == false) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = msc_mgcp_call_assignment(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->assignment_done = true;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_alerting(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc alerting;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x301, GSM48_T301);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&alerting, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ alerting.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ alerting.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&alerting.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_PROGR_IND)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ alerting.fields |= MNCC_F_PROGRESS;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_progress(&alerting.progress,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_PROGR_IND)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ alerting.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&alerting.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_CALL_RECEIVED);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_ALERT_IND,</span><br><span style="color: hsl(120, 100%, 40%);">+ &alerting);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_alerting(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *alerting = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC ALERT");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_ALERTING;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (alerting->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &alerting->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (alerting->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_progress(msg, 0, &alerting->progress);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (alerting->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &alerting->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_CALL_DELIVERED);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_progress(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *progress = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC PROGRESS");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_PROGRESS;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_progress(msg, 1, &progress->progress);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (progress->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &progress->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_connect(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *connect = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSN 04.08 CC CON");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_CONNECT;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x313, GSM48_T313);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (connect->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &connect->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (connect->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_progress(msg, 0, &connect->progress);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* connected number */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (connect->fields & MNCC_F_CONNECTED)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_connected(msg, &connect->connected);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (connect->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &connect->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_CONNECT_IND);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_connect(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc connect;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&connect, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ connect.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* use subscriber as connected party number */</span><br><span style="color: hsl(120, 100%, 40%);">+ connect.fields |= MNCC_F_CONNECTED;</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(connect.connected.number, trans->vsub->msisdn);</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(connect.imsi, trans->vsub->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ connect.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&connect.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ connect.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_useruser(&connect.useruser,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ connect.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&connect.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_CONNECT_REQUEST);</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MT_CONNECT]);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_SETUP_CNF, &connect);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_connect_ack(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc connect_ack;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(120, 100%, 40%);">+ rate_ctr_inc(&trans->net->msc_ctrs->ctr[MSC_CTR_CALL_MO_CONNECT_ACK]);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&connect_ack, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ connect_ack.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_SETUP_COMPL_IND,</span><br><span style="color: hsl(120, 100%, 40%);">+ &connect_ack);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_connect_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC CON ACK");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_CONNECT_ACK;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_disconnect(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc disc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_DISCONNECT_REQ);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&disc, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ disc.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_CAUSE, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ disc.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cause(&disc.cause,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ disc.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&disc.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ disc.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_useruser(&disc.useruser,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ disc.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&disc.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_DISC_IND, &disc);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct gsm_mncc_cause default_cause = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .location = GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ .coding = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+ .rec = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+ .rec_val = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+ .value = GSM48_CC_CAUSE_NORMAL_UNSPEC,</span><br><span style="color: hsl(120, 100%, 40%);">+ .diag_len = 0,</span><br><span style="color: hsl(120, 100%, 40%);">+ .diag = { 0 },</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_disconnect(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *disc = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC DISC");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_DISCONNECT;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x306, GSM48_T306);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disc->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &disc->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disc->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &disc->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* progress */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disc->fields & MNCC_F_PROGRESS)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_progress(msg, 0, &disc->progress);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (disc->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &disc->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* store disconnect cause for T306 expiry */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->cc.msg, disc, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_DISCONNECT_IND);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_release(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc rel;</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cause(&rel.cause,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&rel.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_useruser(&rel.useruser,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&rel.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->cc.state == GSM_CSTATE_RELEASE_REQ) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* release collision 5.4.5 */</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(trans->net, trans, MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = gsm48_tx_simple(trans->conn,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_PDISC_CC | (trans->transaction_id << 4),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_RELEASE_COMPL);</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(trans->net, trans, MNCC_REL_IND, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_NULL);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_release(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *rel = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC REL");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_RELEASE;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x308, GSM48_T308);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rel->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 0, &rel->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rel->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &rel->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rel->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &rel->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->cc.T308_second = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->cc.msg, rel, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->cc.state != GSM_CSTATE_RELEASE_REQ)</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_RELEASE_REQ);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_release_compl(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc rel;</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cause(&rel.cause,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&rel.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_useruser(&rel.useruser,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&rel.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->callref) {</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (trans->cc.state) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_CSTATE_CALL_PRESENT:</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(trans->net, trans,</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_REJ_IND, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_CSTATE_RELEASE_REQ:</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(trans->net, trans,</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(trans->net, trans,</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_REL_IND, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_release_compl(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *rel = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC REL COMPL");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+ int ret;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_RELEASE_COMPL;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rel->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 0, &rel->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rel->fields & MNCC_F_FACILITY)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 0, &rel->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rel->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 0, &rel->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ ret = gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return ret;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_facility(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc fac;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&fac, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ fac.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_FACILITY, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ fac.fields |= MNCC_F_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_facility(&fac.facility,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* ss-version */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_SS_VERS)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ fac.fields |= MNCC_F_SSVERSION;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_ssversion(&fac.ssversion,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_SS_VERS)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_FACILITY_IND, &fac);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_facility(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *fac = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC FAC");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_FACILITY;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_facility(msg, 1, &fac->facility);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_hold(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc hold;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&hold, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ hold.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_HOLD_IND, &hold);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_hold_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC HLD ACK");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_HOLD_ACK;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_hold_rej(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *hold_rej = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC HLD REJ");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_HOLD_REJ;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (hold_rej->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &hold_rej->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_retrieve(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc retrieve;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&retrieve, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ retrieve.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_RETRIEVE_IND,</span><br><span style="color: hsl(120, 100%, 40%);">+ &retrieve);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_retrieve_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC RETR ACK");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_RETR_ACK;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_retrieve_rej(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *retrieve_rej = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC RETR REJ");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_RETR_REJ;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (retrieve_rej->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &retrieve_rej->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_start_dtmf(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc dtmf;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&dtmf, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ dtmf.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* keypad facility */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_KPD_FACILITY)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ dtmf.fields |= MNCC_F_KEYPAD;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_keypad(&dtmf.keypad,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_KPD_FACILITY)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_START_DTMF_IND, &dtmf);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_start_dtmf_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *dtmf = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 DTMF ACK");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_START_DTMF_ACK;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* keypad */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (dtmf->fields & MNCC_F_KEYPAD)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_keypad(msg, dtmf->keypad);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_start_dtmf_rej(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *dtmf = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 DTMF REJ");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_START_DTMF_REJ;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (dtmf->fields & MNCC_F_CAUSE)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &dtmf->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &default_cause);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_stop_dtmf_ack(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 DTMF STP ACK");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_STOP_DTMF_ACK;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_stop_dtmf(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc dtmf;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&dtmf, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ dtmf.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_STOP_DTMF_IND, &dtmf);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_modify(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc modify;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&modify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_bearer_cap(&modify.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create a copy of the bearer capability</span><br><span style="color: hsl(120, 100%, 40%);">+ * in the transaction struct, so we can use</span><br><span style="color: hsl(120, 100%, 40%);">+ * this information later */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap,&modify.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_MO_ORIG_MODIFY);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_MODIFY_IND, &modify);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_modify(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *modify = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC MOD");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_MODIFY;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_start_cc_timer(trans, 0x323, GSM48_T323);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap, &modify->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_MO_TERM_MODIFY);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_modify_complete(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc modify;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&modify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.fields |= MNCC_F_BEARER_CAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_bearer_cap(&modify.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create a copy of the bearer capability</span><br><span style="color: hsl(120, 100%, 40%);">+ * in the transaction struct, so we can use</span><br><span style="color: hsl(120, 100%, 40%);">+ * this information later */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap,&modify.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_MODIFY_CNF, &modify);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_modify_complete(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *modify = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC MOD COMPL");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_MODIFY_COMPL;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap, &modify->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_modify_reject(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc modify;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_stop_cc_timer(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&modify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_BEARER_CAP, GSM48_IE_CAUSE);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_BEARER_CAP)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.fields |= GSM48_IE_BEARER_CAP;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_bearer_cap(&modify.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_BEARER_CAP)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create a copy of the bearer capability</span><br><span style="color: hsl(120, 100%, 40%);">+ * in the transaction struct, so we can use</span><br><span style="color: hsl(120, 100%, 40%);">+ * this information later */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap,&modify.bearer_cap,</span><br><span style="color: hsl(120, 100%, 40%);">+ sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_CAUSE)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ modify.fields |= MNCC_F_CAUSE;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_cause(&modify.cause,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_CAUSE)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_MODIFY_REJ, &modify);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_modify_reject(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *modify = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC MOD REJ");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_MODIFY_REJECT;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* bearer capability */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_bearer_cap(msg, 1, &modify->bearer_cap);</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->bearer_cap, &modify->bearer_cap, sizeof(trans->bearer_cap));</span><br><span style="color: hsl(120, 100%, 40%);">+ /* cause */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_cause(msg, 1, &modify->cause);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ new_cc_state(trans, GSM_CSTATE_ACTIVE);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_notify(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *notify = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC NOT");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_NOTIFY;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* notify */</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_notify(msg, notify->notify);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_notify(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+// struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc notify;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(¬ify, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ notify.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+// tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (payload_len >= 1)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_notify(¬ify.notify, gh->data);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_NOTIFY_IND, ¬ify);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_tx_userinfo(struct gsm_trans *trans, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *user = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 USR INFO");</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ gh->msg_type = GSM48_MT_CC_USER_INFO;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (user->fields & MNCC_F_USERUSER)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_useruser(msg, 1, &user->useruser);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* more data */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (user->more)</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_encode_more(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return gsm48_conn_sendmsg(msg, trans->conn, trans);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsm48_cc_rx_userinfo(struct gsm_trans *trans, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct tlv_parsed tp;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc user;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&user, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ user.callref = trans->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ tlv_parse(&tp, &gsm48_att_tlvdef, gh->data, payload_len, GSM48_IE_USER_USER, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* user-user */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_USER_USER)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ user.fields |= MNCC_F_USERUSER;</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_decode_useruser(&user.useruser,</span><br><span style="color: hsl(120, 100%, 40%);">+ TLVP_VAL(&tp, GSM48_IE_USER_USER)-1);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* more data */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (TLVP_PRESENT(&tp, GSM48_IE_MORE_DATA))</span><br><span style="color: hsl(120, 100%, 40%);">+ user.more = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recvmsg(trans->net, trans, MNCC_USERINFO_IND, &user);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void mncc_recv_rtp(struct gsm_network *net, uint32_t callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ int cmd, uint32_t addr, uint16_t port, uint32_t payload_type,</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t payload_msg_type)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t data[sizeof(struct gsm_mncc)];</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc_rtp *rtp;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&data, 0, sizeof(data));</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp = (struct gsm_mncc_rtp *) &data[0];</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->callref = callref;</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->msg_type = cmd;</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->ip = addr;</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->port = port;</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->payload_type = payload_type;</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->payload_msg_type = payload_msg_type;</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recvmsg(net, NULL, cmd, (struct gsm_mncc *)data);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void mncc_recv_rtp_sock(struct gsm_network *net, struct gsm_trans *trans, int cmd)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int msg_type;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* FIXME This has to be set to some meaningful value.</span><br><span style="color: hsl(120, 100%, 40%);">+ * Possible options are:</span><br><span style="color: hsl(120, 100%, 40%);">+ * GSM_TCHF_FRAME, GSM_TCHF_FRAME_EFR,</span><br><span style="color: hsl(120, 100%, 40%);">+ * GSM_TCHH_FRAME, GSM_TCH_FRAME_AMR</span><br><span style="color: hsl(120, 100%, 40%);">+ * (0 if unknown) */</span><br><span style="color: hsl(120, 100%, 40%);">+ msg_type = GSM_TCHF_FRAME;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t addr = inet_addr(trans->conn->rtp.local_addr_cn);</span><br><span style="color: hsl(120, 100%, 40%);">+ uint16_t port = trans->conn->rtp.local_port_cn;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR, "RTP create for non-existing trans\n");</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (addr == INADDR_NONE) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR,</span><br><span style="color: hsl(120, 100%, 40%);">+ "(subscriber:%s) external MNCC is signalling invalid IP-Address\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_name(trans->vsub));</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ if (port == 0) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR,</span><br><span style="color: hsl(120, 100%, 40%);">+ "(subscriber:%s) external MNCC is signalling invalid Port\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_name(trans->vsub));</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* FIXME: This has to be set to some meaningful value,</span><br><span style="color: hsl(120, 100%, 40%);">+ * before the MSC-Split, this value was pulled from</span><br><span style="color: hsl(120, 100%, 40%);">+ * lchan->abis_ip.rtp_payload */</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t payload_type = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recv_rtp(net, trans->callref, cmd,</span><br><span style="color: hsl(120, 100%, 40%);">+ addr,</span><br><span style="color: hsl(120, 100%, 40%);">+ port,</span><br><span style="color: hsl(120, 100%, 40%);">+ payload_type,</span><br><span style="color: hsl(120, 100%, 40%);">+ msg_type);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void mncc_recv_rtp_err(struct gsm_network *net, uint32_t callref, int cmd)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_recv_rtp(net, callref, cmd, 0, 0, 0, 0);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int tch_rtp_create(struct gsm_network *net, uint32_t callref)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans;</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Find callref */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans = trans_find_by_callref(net, callref);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR, "RTP create for non-existing trans\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recv_rtp_err(net, callref, MNCC_RTP_CREATE);</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EIO;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ log_set_context(LOG_CTX_VLR_SUBSCR, trans->vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans->conn) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_NOTICE, "RTP create for trans without conn\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recv_rtp_err(net, callref, MNCC_RTP_CREATE);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->conn->mncc_rtp_bridge = 1;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* When we call msc_mgcp_call_assignment() we will trigger, depending</span><br><span style="color: hsl(120, 100%, 40%);">+ * on the RAN type the call assignment on the A or Iu interface.</span><br><span style="color: hsl(120, 100%, 40%);">+ * msc_mgcp_call_assignment() also takes care about sending the CRCX</span><br><span style="color: hsl(120, 100%, 40%);">+ * command to the MGCP-GW. The CRCX will return the port number,</span><br><span style="color: hsl(120, 100%, 40%);">+ * where the PBX (e.g. Asterisk) will send its RTP stream to. We</span><br><span style="color: hsl(120, 100%, 40%);">+ * have to return this port number back to the MNCC by sending</span><br><span style="color: hsl(120, 100%, 40%);">+ * it back with the TCH_RTP_CREATE message. To make sure that</span><br><span style="color: hsl(120, 100%, 40%);">+ * this message is sent AFTER the response to CRCX from the</span><br><span style="color: hsl(120, 100%, 40%);">+ * MGCP-GW has arrived, we need will instruct msc_mgcp_call_assignment()</span><br><span style="color: hsl(120, 100%, 40%);">+ * to take care of this by setting trans->tch_rtp_create to true.</span><br><span style="color: hsl(120, 100%, 40%);">+ * This will make sure that gsm48_tch_rtp_create() (below) is</span><br><span style="color: hsl(120, 100%, 40%);">+ * called as soon as the local port number has become known. */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->tch_rtp_create = true;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Assign call (if not done yet) */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->assignment_done == false) {</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = msc_mgcp_call_assignment(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->assignment_done = true;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Trigger TCH_RTP_CREATE acknowledgement */</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm48_tch_rtp_create(struct gsm_trans *trans)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ /* This function is called as soon as the port, on which the</span><br><span style="color: hsl(120, 100%, 40%);">+ * mgcp-gw expects the incoming RTP stream from the remote</span><br><span style="color: hsl(120, 100%, 40%);">+ * end (e.g. Asterisk) is known. */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_subscriber_connection *conn = trans->conn;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_network *network = conn->network;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recv_rtp_sock(network, trans, MNCC_RTP_CREATE);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int tch_rtp_connect(struct gsm_network *net, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc_rtp *rtp = arg;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct in_addr addr;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Find callref */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans = trans_find_by_callref(net, rtp->callref);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR, "RTP connect for non-existing trans\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recv_rtp_err(net, rtp->callref, MNCC_RTP_CONNECT);</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EIO;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ log_set_context(LOG_CTX_VLR_SUBSCR, trans->vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans->conn) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR, "RTP connect for trans without conn\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_recv_rtp_err(net, rtp->callref, MNCC_RTP_CONNECT);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ addr.s_addr = osmo_htonl(rtp->ip);</span><br><span style="color: hsl(120, 100%, 40%);">+ return msc_mgcp_call_complete(trans, rtp->port, inet_ntoa(addr));</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct downstate {</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t states;</span><br><span style="color: hsl(120, 100%, 40%);">+ int type;</span><br><span style="color: hsl(120, 100%, 40%);">+ int (*rout) (struct gsm_trans *trans, void *arg);</span><br><span style="color: hsl(120, 100%, 40%);">+} downstatelist[] = {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* mobile originating call establishment */</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_INITIATED), /* 5.2.1.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_CALL_PROC_REQ, gsm48_cc_tx_call_proc_and_assign},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.2 | 5.2.1.5 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_ALERT_REQ, gsm48_cc_tx_alerting},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC) | SBIT(GSM_CSTATE_CALL_DELIVERED), /* 5.2.1.2 | 5.2.1.6 | 5.2.1.6 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_SETUP_RSP, gsm48_cc_tx_connect},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.4.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_PROGRESS_REQ, gsm48_cc_tx_progress},</span><br><span style="color: hsl(120, 100%, 40%);">+ /* mobile terminating call establishment */</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_NULL), /* 5.2.2.1 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_SETUP_REQ, gsm48_cc_tx_setup},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_CONNECT_REQUEST),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_SETUP_COMPL_REQ, gsm48_cc_tx_connect_ack},</span><br><span style="color: hsl(120, 100%, 40%);">+ /* signalling during call */</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_NOTIFY_REQ, gsm48_cc_tx_notify},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_FACILITY_REQ, gsm48_cc_tx_facility},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES,</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_START_DTMF_RSP, gsm48_cc_tx_start_dtmf_ack},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES,</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_START_DTMF_REJ, gsm48_cc_tx_start_dtmf_rej},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES,</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_STOP_DTMF_RSP, gsm48_cc_tx_stop_dtmf_ack},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_HOLD_CNF, gsm48_cc_tx_hold_ack},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_HOLD_REJ, gsm48_cc_tx_hold_rej},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_RETRIEVE_CNF, gsm48_cc_tx_retrieve_ack},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_RETRIEVE_REJ, gsm48_cc_tx_retrieve_rej},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_MODIFY_REQ, gsm48_cc_tx_modify},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_MO_ORIG_MODIFY),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_MODIFY_RSP, gsm48_cc_tx_modify_complete},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_MO_ORIG_MODIFY),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_MODIFY_REJ, gsm48_cc_tx_modify_reject},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_USERINFO_REQ, gsm48_cc_tx_userinfo},</span><br><span style="color: hsl(120, 100%, 40%);">+ /* clearing */</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_INITIATED),</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_REJ_REQ, gsm48_cc_tx_release_compl},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_DISCONNECT_IND) - SBIT(GSM_CSTATE_RELEASE_REQ) - SBIT(GSM_CSTATE_DISCONNECT_REQ), /* 5.4.4 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_DISC_REQ, gsm48_cc_tx_disconnect},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ), /* 5.4.3.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ MNCC_REL_REQ, gsm48_cc_tx_release},</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#define DOWNSLLEN \</span><br><span style="color: hsl(120, 100%, 40%);">+ (sizeof(downstatelist) / sizeof(struct downstate))</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+int mncc_tx_to_cc(struct gsm_network *net, int msg_type, void *arg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ int i, rc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans = NULL, *transt;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_subscriber_connection *conn = NULL;</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_mncc *data = arg, rel;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DMNCC, "receive message %s\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* handle special messages */</span><br><span style="color: hsl(120, 100%, 40%);">+ switch(msg_type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case MNCC_BRIDGE:</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = tch_bridge(net, arg);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc < 0)</span><br><span style="color: hsl(120, 100%, 40%);">+ disconnect_bridge(net, arg, -rc);</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ case MNCC_RTP_CREATE:</span><br><span style="color: hsl(120, 100%, 40%);">+ return tch_rtp_create(net, data->callref);</span><br><span style="color: hsl(120, 100%, 40%);">+ case MNCC_RTP_CONNECT:</span><br><span style="color: hsl(120, 100%, 40%);">+ return tch_rtp_connect(net, arg);</span><br><span style="color: hsl(120, 100%, 40%);">+ case MNCC_RTP_FREE:</span><br><span style="color: hsl(120, 100%, 40%);">+ /* unused right now */</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EIO;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ case MNCC_FRAME_DROP:</span><br><span style="color: hsl(120, 100%, 40%);">+ case MNCC_FRAME_RECV:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_TCHF_FRAME:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_TCHF_FRAME_EFR:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_TCHH_FRAME:</span><br><span style="color: hsl(120, 100%, 40%);">+ case GSM_TCH_FRAME_AMR:</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMNCC, LOGL_ERROR, "RTP streams must be handled externally; %s not supported.\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOTSUP;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ memset(&rel, 0, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+ rel.callref = data->callref;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Find callref */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans = trans_find_by_callref(net, data->callref);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Callref unknown */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans) {</span><br><span style="color: hsl(120, 100%, 40%);">+ struct vlr_subscr *vsub;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msg_type != MNCC_SETUP_REQ) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC with "</span><br><span style="color: hsl(120, 100%, 40%);">+ "unknown callref %d\n", data->called.number,</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type), data->callref);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Invalid call reference */</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_INVAL_TRANS_ID);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!data->called.number[0] && !data->imsi[0]) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC with "</span><br><span style="color: hsl(120, 100%, 40%);">+ "no number or IMSI\n", get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Invalid number */</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_INV_NR_FORMAT);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* New transaction due to setup, find subscriber */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (data->called.number[0])</span><br><span style="color: hsl(120, 100%, 40%);">+ vsub = vlr_subscr_find_by_msisdn(net->vlr,</span><br><span style="color: hsl(120, 100%, 40%);">+ data->called.number);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ vsub = vlr_subscr_find_by_imsi(net->vlr, data->imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* update the subscriber we deal with */</span><br><span style="color: hsl(120, 100%, 40%);">+ log_set_context(LOG_CTX_VLR_SUBSCR, vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* If subscriber is not found */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!vsub) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC with "</span><br><span style="color: hsl(120, 100%, 40%);">+ "unknown subscriber %s\n", data->called.number,</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type), data->called.number);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Unknown subscriber */</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_UNASSIGNED_NR);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* If subscriber is not "attached" */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!vsub->lac) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC with "</span><br><span style="color: hsl(120, 100%, 40%);">+ "detached subscriber %s\n", data->called.number,</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type), vlr_subscr_name(vsub));</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_put(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Temporarily out of order */</span><br><span style="color: hsl(120, 100%, 40%);">+ return mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_DEST_OOO);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create transaction */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans = trans_alloc(net, vsub, GSM48_PDISC_CC, 0xff, data->callref);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "No memory for trans.\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_put(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Ressource unavailable */</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_release_ind(net, NULL, data->callref,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_RESOURCE_UNAVAIL);</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOMEM;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Find conn */</span><br><span style="color: hsl(120, 100%, 40%);">+ conn = connection_for_subscr(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* If subscriber has no conn */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!conn) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* find transaction with this subscriber already paging */</span><br><span style="color: hsl(120, 100%, 40%);">+ llist_for_each_entry(transt, &net->trans_list, entry) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Transaction of our conn? */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (transt == trans ||</span><br><span style="color: hsl(120, 100%, 40%);">+ transt->vsub != vsub)</span><br><span style="color: hsl(120, 100%, 40%);">+ continue;</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts - trx - ts - ti -- sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC with "</span><br><span style="color: hsl(120, 100%, 40%);">+ "unallocated channel, paging already "</span><br><span style="color: hsl(120, 100%, 40%);">+ "started for lac %d.\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ data->called.number,</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type), vsub->lac);</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_put(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* store setup information until paging succeeds */</span><br><span style="color: hsl(120, 100%, 40%);">+ memcpy(&trans->cc.msg, data, sizeof(struct gsm_mncc));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Request a channel */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->paging_request = subscr_request_conn(</span><br><span style="color: hsl(120, 100%, 40%);">+ vsub,</span><br><span style="color: hsl(120, 100%, 40%);">+ setup_trig_pag_evt,</span><br><span style="color: hsl(120, 100%, 40%);">+ trans,</span><br><span style="color: hsl(120, 100%, 40%);">+ "MNCC: establish call");</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans->paging_request) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DCC, LOGL_ERROR, "Failed to allocate paging token.\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_put(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_put(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Assign conn */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_CC);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->dlci = 0x00; /* SAPI=0, not SACCH */</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_put(vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* update the subscriber we deal with */</span><br><span style="color: hsl(120, 100%, 40%);">+ log_set_context(LOG_CTX_VLR_SUBSCR, trans->vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (trans->conn)</span><br><span style="color: hsl(120, 100%, 40%);">+ conn = trans->conn;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* if paging did not respond yet */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!conn) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC in paging state\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_msisdn_or_name(trans->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type));</span><br><span style="color: hsl(120, 100%, 40%);">+ mncc_set_cause(&rel, GSM48_CAUSE_LOC_PRN_S_LU,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_CC_CAUSE_NORM_CALL_CLEAR);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msg_type == MNCC_REL_REQ)</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(net, trans, MNCC_REL_CNF, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = mncc_recvmsg(net, trans, MNCC_REL_IND, &rel);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->callref = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ trans_free(trans);</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(ti %02x sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MNCC in state %d (%s)\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->transaction_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ vlr_subscr_msisdn_or_name(trans->conn->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ get_mncc_name(msg_type), trans->cc.state,</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_state_name(trans->cc.state));</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Find function for current state and message */</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < DOWNSLLEN; i++)</span><br><span style="color: hsl(120, 100%, 40%);">+ if ((msg_type == downstatelist[i].type)</span><br><span style="color: hsl(120, 100%, 40%);">+ && ((1 << trans->cc.state) & downstatelist[i].states))</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (i == DOWNSLLEN) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Message unhandled at this state.\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = downstatelist[i].rout(trans, arg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct datastate {</span><br><span style="color: hsl(120, 100%, 40%);">+ uint32_t states;</span><br><span style="color: hsl(120, 100%, 40%);">+ int type;</span><br><span style="color: hsl(120, 100%, 40%);">+ int (*rout) (struct gsm_trans *trans, struct msgb *msg);</span><br><span style="color: hsl(120, 100%, 40%);">+} datastatelist[] = {</span><br><span style="color: hsl(120, 100%, 40%);">+ /* mobile originating call establishment */</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_NULL), /* 5.2.1.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_SETUP, gsm48_cc_rx_setup},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_NULL), /* 5.2.1.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_EMERG_SETUP, gsm48_cc_rx_setup},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_CONNECT_IND), /* 5.2.1.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_CONNECT_ACK, gsm48_cc_rx_connect_ack},</span><br><span style="color: hsl(120, 100%, 40%);">+ /* mobile terminating call establishment */</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_CALL_PRESENT), /* 5.2.2.3.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_CALL_CONF, gsm48_cc_rx_call_conf},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_CALL_PRESENT) | SBIT(GSM_CSTATE_MO_TERM_CALL_CONF), /* ???? | 5.2.2.3.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_ALERTING, gsm48_cc_rx_alerting},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_CALL_PRESENT) | SBIT(GSM_CSTATE_MO_TERM_CALL_CONF) | SBIT(GSM_CSTATE_CALL_RECEIVED), /* (5.2.2.6) | 5.2.2.6 | 5.2.2.6 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_CONNECT, gsm48_cc_rx_connect},</span><br><span style="color: hsl(120, 100%, 40%);">+ /* signalling during call */</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES - SBIT(GSM_CSTATE_NULL),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_FACILITY, gsm48_cc_rx_facility},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_NOTIFY, gsm48_cc_rx_notify},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_START_DTMF, gsm48_cc_rx_start_dtmf},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_STOP_DTMF, gsm48_cc_rx_stop_dtmf},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_STATUS_ENQ, gsm48_cc_rx_status_enq},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_HOLD, gsm48_cc_rx_hold},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_RETR, gsm48_cc_rx_retrieve},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_MODIFY, gsm48_cc_rx_modify},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_MO_TERM_MODIFY),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_MODIFY_COMPL, gsm48_cc_rx_modify_complete},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_MO_TERM_MODIFY),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_MODIFY_REJECT, gsm48_cc_rx_modify_reject},</span><br><span style="color: hsl(120, 100%, 40%);">+ {SBIT(GSM_CSTATE_ACTIVE),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_USER_INFO, gsm48_cc_rx_userinfo},</span><br><span style="color: hsl(120, 100%, 40%);">+ /* clearing */</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES - SBIT(GSM_CSTATE_NULL) - SBIT(GSM_CSTATE_RELEASE_REQ), /* 5.4.3.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_DISCONNECT, gsm48_cc_rx_disconnect},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES - SBIT(GSM_CSTATE_NULL), /* 5.4.4.1.2.2 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_RELEASE, gsm48_cc_rx_release},</span><br><span style="color: hsl(120, 100%, 40%);">+ {ALL_STATES, /* 5.4.3.4 */</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_RELEASE_COMPL, gsm48_cc_rx_release_compl},</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#define DATASLLEN \</span><br><span style="color: hsl(120, 100%, 40%);">+ (sizeof(datastatelist) / sizeof(struct datastate))</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+int gsm0408_rcv_cc(struct gsm_subscriber_connection *conn, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm48_hdr *gh = msgb_l3(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t msg_type = gsm48_hdr_msg_type(gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ uint8_t transaction_id = gsm48_hdr_trans_id_flip_ti(gh);</span><br><span style="color: hsl(120, 100%, 40%);">+ struct gsm_trans *trans = NULL;</span><br><span style="color: hsl(120, 100%, 40%);">+ int i, rc = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (msg_type & 0x80) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "MSG 0x%2x not defined for PD error\n", msg_type);</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!conn->vsub) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DCC, LOGL_ERROR, "Invalid conn: no subscriber\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Find transaction */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans = trans_find_by_id(conn, GSM48_PDISC_CC, transaction_id);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#if BEFORE_MSCSPLIT</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Re-enable this log output once we can obtain this information via</span><br><span style="color: hsl(120, 100%, 40%);">+ * A-interface, see OS#2391. */</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "(bts %d trx %d ts %d ti %x sub %s) "</span><br><span style="color: hsl(120, 100%, 40%);">+ "Received '%s' from MS in state %d (%s)\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ conn->bts->nr, conn->lchan->ts->trx->nr, conn->lchan->ts->nr,</span><br><span style="color: hsl(120, 100%, 40%);">+ transaction_id, vlr_subscr_msisdn_or_name(conn->vsub),</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_msg_name(msg_type), trans?(trans->cc.state):0,</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm48_cc_state_name(trans?(trans->cc.state):0));</span><br><span style="color: hsl(120, 100%, 40%);">+#endif</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create transaction */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Unknown transaction ID %x, "</span><br><span style="color: hsl(120, 100%, 40%);">+ "creating new trans.\n", transaction_id);</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Create transaction */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans = trans_alloc(conn->network, conn->vsub,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_PDISC_CC,</span><br><span style="color: hsl(120, 100%, 40%);">+ transaction_id, new_callref++);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!trans) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "No memory for trans.\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = gsm48_tx_simple(conn,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_PDISC_CC | (transaction_id << 4),</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM48_MT_CC_RELEASE_COMPL);</span><br><span style="color: hsl(120, 100%, 40%);">+ return -ENOMEM;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Assign transaction */</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->conn = msc_subscr_conn_get(conn, MSC_CONN_USE_TRANS_CC);</span><br><span style="color: hsl(120, 100%, 40%);">+ trans->dlci = OMSC_LINKID_CB(msg); /* DLCI as received from BSC */</span><br><span style="color: hsl(120, 100%, 40%);">+ cm_service_request_concludes(conn, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* find function for current state and message */</span><br><span style="color: hsl(120, 100%, 40%);">+ for (i = 0; i < DATASLLEN; i++)</span><br><span style="color: hsl(120, 100%, 40%);">+ if ((msg_type == datastatelist[i].type)</span><br><span style="color: hsl(120, 100%, 40%);">+ && ((1 << trans->cc.state) & datastatelist[i].states))</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (i == DATASLLEN) {</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DCC, "Message unhandled at this state.\n");</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ assert(trans->vsub);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = datastatelist[i].rout(trans, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ msc_subscr_conn_communicating(conn);</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/9705">change 9705</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/9705"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: osmo-msc </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>
<div style="display:none"> Gerrit-Change-Id: Idb8dd7a8d9d8b4a28c492f12da3cc3305b695cca </div>
<div style="display:none"> Gerrit-Change-Number: 9705 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Harald Welte <laforge@gnumonks.org> </div>