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Diffstat (limited to 'pjsip/src/pjsua/pjsua_inv.c')
-rw-r--r--pjsip/src/pjsua/pjsua_inv.c331
1 files changed, 331 insertions, 0 deletions
diff --git a/pjsip/src/pjsua/pjsua_inv.c b/pjsip/src/pjsua/pjsua_inv.c
new file mode 100644
index 00000000..72272c32
--- /dev/null
+++ b/pjsip/src/pjsua/pjsua_inv.c
@@ -0,0 +1,331 @@
+/* $Id$ */
+/*
+ * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "pjsua.h"
+#include <pj/log.h>
+
+
+/*
+ * pjsua_inv.c
+ *
+ * Invite session specific functionalities.
+ */
+
+#define THIS_FILE "pjsua_inv.c"
+
+
+/**
+ * Make outgoing call.
+ */
+pj_status_t pjsua_invite(const char *cstr_dest_uri,
+ pjsip_inv_session **p_inv)
+{
+ pj_str_t dest_uri;
+ pjsip_dialog *dlg;
+ pjmedia_sdp_session *offer;
+ pjsip_inv_session *inv;
+ struct pjsua_inv_data *inv_data;
+ pjsip_tx_data *tdata;
+ pj_status_t status;
+
+ /* Convert cstr_dest_uri to dest_uri */
+
+ dest_uri = pj_str((char*)cstr_dest_uri);
+
+ /* Create outgoing dialog: */
+
+ status = pjsip_dlg_create_uac( pjsip_ua_instance(), &pjsua.local_uri,
+ &pjsua.contact_uri, &dest_uri, &dest_uri,
+ &dlg);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Dialog creation failed", status);
+ return status;
+ }
+
+ /* Get media capability from media endpoint: */
+
+ status = pjmedia_endpt_create_sdp( pjsua.med_endpt, dlg->pool,
+ 1, &pjsua.med_skinfo, &offer);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("pjmedia unable to create SDP", status);
+ goto on_error;
+ }
+
+ /* Create the INVITE session: */
+
+ status = pjsip_inv_create_uac( dlg, offer, 0, &inv);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Invite session creation failed", status);
+ goto on_error;
+ }
+
+
+ /* Create and associate our data in the session. */
+
+ inv_data = pj_pool_zalloc( dlg->pool, sizeof(struct pjsua_inv_data));
+ dlg->mod_data[pjsua.mod.id] = inv_data;
+
+
+ /* Set dialog Route-Set: */
+
+ if (!pj_list_empty(&pjsua.route_set))
+ pjsip_dlg_set_route_set(dlg, &pjsua.route_set);
+
+
+ /* Set credentials: */
+
+ pjsip_auth_clt_set_credentials( &dlg->auth_sess, pjsua.cred_count,
+ pjsua.cred_info);
+
+
+ /* Create initial INVITE: */
+
+ status = pjsip_inv_invite(inv, &tdata);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Unable to create initial INVITE request", status);
+ goto on_error;
+ }
+
+
+ /* Send initial INVITE: */
+
+ status = pjsip_inv_send_msg(inv, tdata, NULL);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Unable to send initial INVITE request", status);
+ goto on_error;
+ }
+
+
+ /* Done. */
+
+ *p_inv = inv;
+
+ return PJ_SUCCESS;
+
+
+on_error:
+
+ PJ_TODO(DESTROY_DIALOG_ON_FAIL);
+ return status;
+}
+
+
+/**
+ * Handle incoming INVITE request.
+ */
+pj_bool_t pjsua_inv_on_incoming(pjsip_rx_data *rdata)
+{
+ pjsip_dialog *dlg = pjsip_rdata_get_dlg(rdata);
+ pjsip_transaction *tsx = pjsip_rdata_get_tsx(rdata);
+ pjsip_msg *msg = rdata->msg_info.msg;
+
+ /*
+ * Handle incoming INVITE outside dialog.
+ */
+ if (dlg == NULL && tsx == NULL &&
+ msg->line.req.method.id == PJSIP_INVITE_METHOD)
+ {
+ pj_status_t status;
+ pjsip_tx_data *response = NULL;
+ unsigned options = 0;
+
+ /* Verify that we can handle the request. */
+ status = pjsip_inv_verify_request(rdata, &options, NULL, NULL,
+ pjsua.endpt, &response);
+ if (status != PJ_SUCCESS) {
+
+ /*
+ * No we can't handle the incoming INVITE request.
+ */
+
+ if (response) {
+ pjsip_response_addr res_addr;
+
+ pjsip_get_response_addr(response->pool, rdata, &res_addr);
+ pjsip_endpt_send_response(pjsua.endpt, &res_addr, response,
+ NULL, NULL);
+
+ } else {
+
+ /* Respond with 500 (Internal Server Error) */
+ pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
+ NULL, NULL);
+ }
+
+ } else {
+ /*
+ * Yes we can handle the incoming INVITE request.
+ */
+ pjsip_inv_session *inv;
+ struct pjsua_inv_data *inv_data;
+ pjmedia_sdp_session *answer;
+
+
+ /* Get media capability from media endpoint: */
+
+ status = pjmedia_endpt_create_sdp( pjsua.med_endpt, rdata->tp_info.pool,
+ 1, &pjsua.med_skinfo, &answer );
+ if (status != PJ_SUCCESS) {
+
+ pjsip_endpt_respond_stateless(pjsua.endpt, rdata, 500, NULL,
+ NULL, NULL);
+ return PJ_TRUE;
+ }
+
+ /* Create dialog: */
+
+ status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata,
+ &pjsua.contact_uri, &dlg);
+ if (status != PJ_SUCCESS)
+ return PJ_TRUE;
+
+
+ /* Create invite session: */
+
+ status = pjsip_inv_create_uas( dlg, rdata, answer, 0, &inv);
+ if (status != PJ_SUCCESS) {
+
+ status = pjsip_dlg_create_response( dlg, rdata, 500, NULL,
+ &response);
+ if (status == PJ_SUCCESS)
+ status = pjsip_dlg_send_response(dlg,
+ pjsip_rdata_get_tsx(rdata),
+ response);
+ return PJ_TRUE;
+
+ }
+
+
+ /* Create and attach pjsua data to the dialog: */
+
+ inv_data = pj_pool_zalloc(dlg->pool, sizeof(struct pjsua_inv_data));
+ dlg->mod_data[pjsua.mod.id] = inv_data;
+
+
+ /* Answer with 100 (using the dialog, not invite): */
+
+ status = pjsip_dlg_create_response(dlg, rdata, 100, NULL, &response);
+ if (status == PJ_SUCCESS)
+ status = pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), response);
+ }
+
+ /* This INVITE request has been handled. */
+ return PJ_TRUE;
+ }
+
+ return PJ_FALSE;
+}
+
+
+/*
+ * This callback receives notification from invite session when the
+ * session state has changed.
+ */
+void pjsua_inv_on_state_changed(pjsip_inv_session *inv, pjsip_event *e)
+{
+
+ /* Destroy media session when invite session is disconnected. */
+ if (inv->state == PJSIP_INV_STATE_DISCONNECTED) {
+ struct pjsua_inv_data *inv_data;
+
+ inv_data = inv->dlg->mod_data[pjsua.mod.id];
+ if (inv_data && inv_data->session) {
+ pjmedia_session_destroy(inv_data->session);
+ inv_data->session = NULL;
+
+ PJ_LOG(3,(THIS_FILE,"Media session is destroyed"));
+ }
+
+ }
+
+ pjsua_ui_inv_on_state_changed(inv, e);
+}
+
+
+/*
+ * This callback is called by invite session framework when UAC session
+ * has forked.
+ */
+void pjsua_inv_on_new_session(pjsip_inv_session *inv, pjsip_event *e)
+{
+ PJ_UNUSED_ARG(inv);
+ PJ_UNUSED_ARG(e);
+
+ PJ_TODO(HANDLE_FORKED_DIALOG);
+}
+
+
+/*
+ * Callback to be called when SDP offer/answer negotiation has just completed
+ * in the session. This function will start/update media if negotiation
+ * has succeeded.
+ */
+void pjsua_inv_on_media_update(pjsip_inv_session *inv, pj_status_t status)
+{
+ struct pjsua_inv_data *inv_data;
+ const pjmedia_sdp_session *local_sdp;
+ const pjmedia_sdp_session *remote_sdp;
+
+ if (status != PJ_SUCCESS) {
+
+ pjsua_perror("SDP negotiation has failed", status);
+ return;
+
+ }
+
+ /* Destroy existing media session, if any. */
+
+ inv_data = inv->dlg->mod_data[pjsua.mod.id];
+ if (inv_data && inv_data->session) {
+ pjmedia_session_destroy(inv_data->session);
+ inv_data->session = NULL;
+ }
+
+ /* Get local and remote SDP */
+
+ status = pjmedia_sdp_neg_get_active_local(inv->neg, &local_sdp);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Unable to retrieve currently active local SDP", status);
+ return;
+ }
+
+
+ status = pjmedia_sdp_neg_get_active_remote(inv->neg, &remote_sdp);
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Unable to retrieve currently active remote SDP", status);
+ return;
+ }
+
+
+ /* Create new media session.
+ * The media session is active immediately.
+ */
+
+ if (!pjsua.null_audio) {
+
+ status = pjmedia_session_create( pjsua.med_endpt, 1, &pjsua.med_skinfo,
+ local_sdp, remote_sdp,
+ &inv_data->session );
+ if (status != PJ_SUCCESS) {
+ pjsua_perror("Unable to create media session", status);
+ return;
+ }
+
+ PJ_LOG(3,(THIS_FILE,"Media has been started successfully"));
+ }
+}
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