/*!
* \internal
* \brief Session supplement callback on an incoming INVITE request
*
* If we are receiving an initial INVITE, then we will set the session's identity
* based on the INVITE or configured endpoint values. If we are receiving a reinvite,
* then we will potentially queue a connected line update via the \ref update_incoming_connected_line
* function
*
* \param session The session that has received an INVITE
* \param rdata The incoming INVITE
*/
static int caller_id_incoming_request(struct ast_sip_session *session, pjsip_rx_data *rdata)
{
if (!session->channel) {
/*
* Since we have no channel this must be the initial inbound
* INVITE. Set the session ID directly because the channel
* has not been created yet.
*/
if (session->endpoint->id.trust_inbound
&& (!set_id_from_pai(rdata, &session->id)
|| !set_id_from_rpid(rdata, &session->id))) {
ast_free(session->id.tag);
session->id.tag = ast_strdup(session->endpoint->id.self.tag);
return 0;
}
ast_party_id_copy(&session->id, &session->endpoint->id.self);
if (!session->endpoint->id.self.number.valid) {
set_id_from_from(rdata, &session->id);
}
} else {
/*
* ReINVITE or UPDATE. Check for changes to the ID and queue
* a connected line update if necessary.
*/
update_incoming_connected_line(session, rdata);
}
return 0;
}
/*!
* \internal
* \brief Session supplement callback on an incoming INVITE request
*
* If we are receiving an initial INVITE, then we will set the session's identity
* based on the INVITE or configured endpoint values. If we are receiving a reinvite,
* then we will potentially queue a connected line update via the \ref update_incoming_connected_line
* function
*
* \param session The session that has received an INVITE
* \param rdata The incoming INVITE
*/
static int caller_id_incoming_request(struct ast_sip_session *session, pjsip_rx_data *rdata)
{
if (session->inv_session->state < PJSIP_INV_STATE_CONFIRMED) {
/*
* Initial inbound INVITE. Set the session ID directly
* because the channel has not been created yet.
*/
if (session->endpoint->id.trust_inbound
&& (!set_id_from_pai(rdata, &session->id)
|| !set_id_from_rpid(rdata, &session->id))) {
ast_free(session->id.tag);
session->id.tag = ast_strdup(session->endpoint->id.self.tag);
return 0;
}
ast_party_id_copy(&session->id, &session->endpoint->id.self);
if (!session->endpoint->id.self.number.valid) {
set_id_from_from(rdata, &session->id);
}
} else if (session->channel) {
/* Reinvite. Check for changes to the ID and queue a connected line
* update if necessary
*/
update_incoming_connected_line(session, rdata);
}
return 0;
}
/*!
* \internal
* \brief Queue a connected line update on a session's channel.
* \param session The session whose channel should have the connected line update queued upon.
* \param id The identification information to place in the connected line update
*/
static void queue_connected_line_update(struct ast_sip_session *session, const struct ast_party_id *id)
{
struct ast_party_connected_line connected;
struct ast_set_party_connected_line update_connected;
ast_party_connected_line_init(&connected);
ast_party_id_copy(&connected.id, id);
memset(&update_connected, 0, sizeof(update_connected));
update_connected.id.number = 1;
update_connected.id.name = 1;
ast_set_party_id_all(&update_connected.priv);
connected.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
ast_party_id_copy(&session->id, &connected.id);
ast_channel_queue_connected_line_update(session->channel, &connected, &update_connected);
ast_party_connected_line_free(&connected);
}
static void copy_redirecting_id(struct ast_party_id *dst, const struct ast_party_id *src,
struct ast_set_party_id *update)
{
ast_party_id_copy(dst, src);
if (dst->number.valid) {
update->number = 1;
}
if (dst->name.valid) {
update->name = 1;
}
}
/*!
* \internal
* \brief Session supplement callback for outgoing INVITE requests
*
* On all INVITEs (initial and reinvite) we may add other identity headers
* such as P-Asserted-Identity and Remote-Party-ID based on configuration
* and privacy settings
*
* \param session The session on which the INVITE will be sent
* \param tdata The outbound INVITE request
*/
static void caller_id_outgoing_request(struct ast_sip_session *session, pjsip_tx_data *tdata)
{
struct ast_party_id effective_id;
struct ast_party_id connected_id;
if (!session->channel) {
return;
}
ast_party_id_init(&connected_id);
ast_channel_lock(session->channel);
effective_id = ast_channel_connected_effective_id(session->channel);
ast_party_id_copy(&connected_id, &effective_id);
ast_channel_unlock(session->channel);
add_id_headers(session, tdata, &connected_id);
ast_party_id_free(&connected_id);
}
/*!
* \internal
* \brief Session supplement for outgoing INVITE response
*
* This will add P-Asserted-Identity and Remote-Party-ID headers if necessary
*
* \param session The session on which the INVITE response is to be sent
* \param tdata The outbound INVITE response
*/
static void caller_id_outgoing_response(struct ast_sip_session *session, pjsip_tx_data *tdata)
{
struct ast_party_id effective_id;
struct ast_party_id connected_id;
if (!session->channel) {
return;
}
/* Must do a deep copy unless we hold the channel lock the entire time. */
ast_party_id_init(&connected_id);
ast_channel_lock(session->channel);
effective_id = ast_channel_connected_effective_id(session->channel);
ast_party_id_copy(&connected_id, &effective_id);
ast_channel_unlock(session->channel);
add_id_headers(session, tdata, &connected_id);
ast_party_id_free(&connected_id);
}
/*!
* \internal
* \brief Session supplement callback for outgoing INVITE requests
*
* For an initial INVITE request, we may change the From header to appropriately
* reflect the identity information. On all INVITEs (initial and reinvite) we may
* add other identity headers such as P-Asserted-Identity and Remote-Party-ID based
* on configuration and privacy settings
*
* \param session The session on which the INVITE will be sent
* \param tdata The outbound INVITE request
*/
static void caller_id_outgoing_request(struct ast_sip_session *session, pjsip_tx_data *tdata)
{
struct ast_party_id effective_id;
struct ast_party_id connected_id;
if (!session->channel) {
return;
}
/* Must do a deep copy unless we hold the channel lock the entire time. */
ast_party_id_init(&connected_id);
ast_channel_lock(session->channel);
effective_id = ast_channel_connected_effective_id(session->channel);
ast_party_id_copy(&connected_id, &effective_id);
ast_channel_unlock(session->channel);
if (session->inv_session->state < PJSIP_INV_STATE_CONFIRMED) {
/* Only change the From header on the initial outbound INVITE. Switching it
* mid-call might confuse some UAs.
*/
pjsip_fromto_hdr *from;
pjsip_dialog *dlg;
from = pjsip_msg_find_hdr(tdata->msg, PJSIP_H_FROM, tdata->msg->hdr.next);
dlg = session->inv_session->dlg;
if (ast_strlen_zero(session->endpoint->fromuser)
&& (session->endpoint->id.trust_outbound
|| (ast_party_id_presentation(&connected_id) & AST_PRES_RESTRICTION) == AST_PRES_ALLOWED)) {
modify_id_header(tdata->pool, from, &connected_id);
modify_id_header(dlg->pool, dlg->local.info, &connected_id);
}
ast_sip_add_usereqphone(session->endpoint, tdata->pool, from->uri);
ast_sip_add_usereqphone(session->endpoint, dlg->pool, dlg->local.info->uri);
}
add_id_headers(session, tdata, &connected_id);
ast_party_id_free(&connected_id);
}
/*!
* \internal
* \brief Queue a connected line update on a session's channel.
* \param session The session whose channel should have the connected line update queued upon.
* \param id The identification information to place in the connected line update
*/
static void queue_connected_line_update(struct ast_sip_session *session, const struct ast_party_id *id)
{
struct ast_party_connected_line connected;
struct ast_party_caller caller;
/* Fill connected line information */
ast_party_connected_line_init(&connected);
connected.id = *id;
connected.id.tag = session->endpoint->id.self.tag;
connected.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
/* Save to channel driver copy */
ast_party_id_copy(&session->id, &connected.id);
/* Update our channel CALLERID() */
ast_party_caller_init(&caller);
caller.id = connected.id;
caller.ani = connected.id;
caller.ani2 = ast_channel_caller(session->channel)->ani2;
ast_channel_set_caller_event(session->channel, &caller, NULL);
/* Tell peer about the new connected line information. */
ast_channel_queue_connected_line_update(session->channel, &connected, NULL);
}