diff options
Diffstat (limited to 'branches/1.0/tinySIP/src/dialogs/tsip_dialog_invite.c')
| -rw-r--r-- | branches/1.0/tinySIP/src/dialogs/tsip_dialog_invite.c | 1359 |
1 files changed, 0 insertions, 1359 deletions
diff --git a/branches/1.0/tinySIP/src/dialogs/tsip_dialog_invite.c b/branches/1.0/tinySIP/src/dialogs/tsip_dialog_invite.c deleted file mode 100644 index 0c380be..0000000 --- a/branches/1.0/tinySIP/src/dialogs/tsip_dialog_invite.c +++ /dev/null @@ -1,1359 +0,0 @@ -/*
-* Copyright (C) 2009-2010 Mamadou Diop.
-*
-* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
-*
-* This file is part of Open Source Doubango Framework.
-*
-* DOUBANGO is free software: you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as publishd by
-* the Free Software Foundation, either version 3 of the License, or
-* (at your option) any later version.
-*
-* DOUBANGO 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 DOUBANGO.
-*
-*/
-
-/**@file tsip_dialog_invite.c
- * @brief SIP dialog INVITE as per RFC 3261.
- * The SOA machine is designed as per RFC 3264 and draft-ietf-sipping-sip-offeranswer-12.
- * MMTel services implementation follow 3GPP TS 24.173.
- *
- * @author Mamadou Diop <diopmamadou(at)doubango.org>
- *
- * @date Created: Sat Nov 8 16:54:58 2009 mdiop
- */
-#include "tinysip/dialogs/tsip_dialog_invite.h"
-
-#include "tinysip/dialogs/tsip_dialog_invite.common.h"
-
-#include "tinysip/transports/tsip_transport_layer.h"
-
-#include "tinysip/headers/tsip_header_Allow.h"
-#include "tinysip/headers/tsip_header_Dummy.h"
-#include "tinysip/headers/tsip_header_Max_Forwards.h"
-#include "tinysip/headers/tsip_header_Min_SE.h"
-#include "tinysip/headers/tsip_header_RAck.h"
-#include "tinysip/headers/tsip_header_Require.h"
-#include "tinysip/headers/tsip_header_RSeq.h"
-#include "tinysip/headers/tsip_header_Session_Expires.h"
-#include "tinysip/headers/tsip_header_Supported.h"
-
-#include "tinysdp/parsers/tsdp_parser_message.h"
-
-#include "tsk_debug.h"
-
-// http://cdnet.stpi.org.tw/techroom/market/_pdf/2009/eetelecomm_09_009_OneVoiceProfile.pdf
-// 3GPP TS 26.114 (MMTel): Media handling and interaction
-// 3GPP TS 24.173 (MMTel): Supplementary Services
-//
-/* ======================== MMTel Supplementary Services ========================
-3GPP TS 24.607 : Originating Identification Presentation
-3GPP TS 24.608 : Terminating Identification Presentation
-3GPP TS 24.607 : Originating Identification Restriction
-3GPP TS 24.608 : Terminating Identification Restriction
-
-3GPP TS 24.604 : Communication Diversion Unconditional
-3GPP TS 24.604 : Communication Diversion on not Logged
-3GPP TS 24.604 : Communication Diversion on Busy
-3GPP TS 24.604 : Communication Diversion on not Reachable
-3GPP TS 24.604 : Communication Diversion on No Reply
-3GPP TS 24.611 : Barring of All Incoming Calls
-3GPP TS 24.611 : Barring of All Outgoing Calls
-3GPP TS 24.611 : Barring of Outgoing International Calls
-3GPP TS 24.611 : Barring of Incoming Calls - When Roaming
-3GPP TS 24.610 : Communication Hold
-3GPP TS 24.606 : Message Waiting Indication
-3GPP TS 24.615 : Communication Waiting
-3GPP TS 24.605 : Ad-Hoc Multi Party Conference
-*/
-
-/* ======================== internal functions ======================== */
-int send_INVITEorUPDATE(tsip_dialog_invite_t *self, tsk_bool_t is_INVITE, tsk_bool_t force_sdp);
-int send_PRACK(tsip_dialog_invite_t *self, const tsip_response_t* r1xx);
-int send_ACK(tsip_dialog_invite_t *self, const tsip_response_t* r2xxINVITE);
-int send_RESPONSE(tsip_dialog_invite_t *self, const tsip_request_t* request, short code, const char* phrase, tsk_bool_t force_sdp);
-int send_ERROR(tsip_dialog_invite_t* self, const tsip_request_t* request, short code, const char* phrase, const char* reason);
-int send_BYE(tsip_dialog_invite_t *self);
-int send_CANCEL(tsip_dialog_invite_t *self);
-int tsip_dialog_invite_OnTerminated(tsip_dialog_invite_t *self);
-
-/* ======================== external functions ======================== */
-extern int tsip_dialog_invite_stimers_cancel(tsip_dialog_invite_t* self);
-extern int tsip_dialog_invite_qos_timer_cancel(tsip_dialog_invite_t* self);
-extern int tsip_dialog_invite_qos_timer_schedule(tsip_dialog_invite_t* self);
-extern int tsip_dialog_invite_stimers_schedule(tsip_dialog_invite_t* self, uint64_t timeout);
-extern int tsip_dialog_invite_stimers_handle(tsip_dialog_invite_t* self, const tsip_message_t* message);
-extern int tsip_dialog_invite_hold_handle(tsip_dialog_invite_t* self, const tsip_request_t* rINVITEorUPDATE);
-
-/* ======================== transitions ======================== */
-static int x0000_Connected_2_Connected_X_oDTMF(va_list *app);
-static int x0000_Connected_2_Connected_X_oLMessage(va_list *app);
-static int x0000_Connected_2_Connected_X_iACK(va_list *app);
-static int x0000_Connected_2_Connected_X_iINVITEorUPDATE(va_list *app);
-
-
-int x0000_Any_2_Any_X_i1xx(va_list *app);
-int x0000_Any_2_Any_X_i401_407_INVITEorUPDATE(va_list *app);
-int x0000_Any_2_Any_X_i2xxINVITEorUPDATE(va_list *app);
-
-int x0000_Any_2_Any_X_iPRACK(va_list *app);
-int x0000_Any_2_Any_X_iOPTIONS(va_list *app);
-int x0000_Any_2_Trying_X_oBYE(va_list *app); /* If not Connected => Cancel will be called instead. See tsip_dialog_hangup() */
-int x0000_Any_2_Terminated_X_iBYE(va_list *app);
-int x0000_Any_2_Trying_X_shutdown(va_list *app);
-
-int x9998_Any_2_Any_X_transportError(va_list *app);
-int x9999_Any_2_Any_X_Error(va_list *app);
-
-/* ======================== conds ======================== */
-static tsk_bool_t _fsm_cond_is_resp2INVITE(tsip_dialog_invite_t* self, tsip_message_t* message)
-{
- return TSIP_RESPONSE_IS_TO_INVITE(message);
-}
-static tsk_bool_t _fsm_cond_is_resp2UPDATE(tsip_dialog_invite_t* self, tsip_message_t* message)
-{
- return TSIP_RESPONSE_IS_TO_UPDATE(message);
-}
-static tsk_bool_t _fsm_cond_is_resp2BYE(tsip_dialog_invite_t* self, tsip_message_t* message)
-{
- return TSIP_RESPONSE_IS_TO_BYE(message);
-}
-static tsk_bool_t _fsm_cond_is_resp2PRACK(tsip_dialog_invite_t* self, tsip_message_t* message)
-{
- return TSIP_RESPONSE_IS_TO_PRACK(message);
-}
-
-/* ======================== actions ======================== */
-/* #include "tinysip/dialogs/tsip_dialog_invite.common.h" */
-
-/* ======================== states ======================== */
-/* #include "tinysip/dialogs/tsip_dialog_invite.common.h" */
-
-/* Client-Side dialog */
-extern int tsip_dialog_invite_client_init(tsip_dialog_invite_t *self);
-/* Server-Side dialog */
-extern int tsip_dialog_invite_server_init(tsip_dialog_invite_t *self);
-/* 3GPP TS 24.610: Communication Hold */
-extern int tsip_dialog_invite_hold_init(tsip_dialog_invite_t *self);
-/* RFC 4028: Session Timers */
-extern int tsip_dialog_invite_stimers_init(tsip_dialog_invite_t *self);
-/* RFC 3312: Integration of Resource Management and Session Initiation Protocol (SIP) */
-extern int tsip_dialog_invite_qos_init(tsip_dialog_invite_t *self);
-
-int tsip_dialog_invite_event_callback(const tsip_dialog_invite_t *self, tsip_dialog_event_type_t type, const tsip_message_t *msg)
-{
- int ret = -1;
-
- switch(type)
- {
- case tsip_dialog_i_msg:
- {
- if(msg){
- if(TSIP_MESSAGE_IS_RESPONSE(msg)){ /* Response */
- if(TSIP_RESPONSE_IS_1XX(msg)){ // 100-199
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_i1xx, msg, tsk_null);
- }
- else if(TSIP_RESPONSE_IS_2XX(msg)){ // 200-299
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_i2xx, msg, tsk_null);
- }
- else if(TSIP_RESPONSE_CODE(msg) == 401 || TSIP_RESPONSE_CODE(msg) == 407){ // 401,407
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_i401_i407, msg, tsk_null);
- }
- else if(TSIP_RESPONSE_CODE(msg) == 422){ // 422
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_i422, msg, tsk_null);
- }
- else if(TSIP_RESPONSE_IS_3456(msg)){ // 300-699
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_i300_to_i699, msg, tsk_null);
- }
- else; // Ignore
- }
- else{ /* Request */
- if(TSIP_REQUEST_IS_INVITE(msg)){ // INVITE
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iINVITE, msg, tsk_null);
- }
- else if(TSIP_REQUEST_IS_UPDATE(msg)){ // UPDATE
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iUPDATE, msg, tsk_null);
- }
- else if(TSIP_REQUEST_IS_PRACK(msg)){ // PRACK
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iPRACK, msg, tsk_null);
- }
- else if(TSIP_REQUEST_IS_ACK(msg)){ // ACK
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iACK, msg, tsk_null);
- }
- else if(TSIP_REQUEST_IS_OPTIONS(msg)){ // OPTIONS
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iOPTIONS, msg, tsk_null);
- }
- else if(TSIP_REQUEST_IS_BYE(msg)){ // BYE
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iBYE, msg, tsk_null);
- }
- else if(TSIP_REQUEST_IS_CANCEL(msg)){ // CANCEL
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_iCANCEL, msg, tsk_null);
- }
- }
- }
- break;
- }
-
- case tsip_dialog_canceled:
- {
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_oCANCEL, msg, tsk_null);
- break;
- }
-
- case tsip_dialog_terminated:
- case tsip_dialog_timedout:
- case tsip_dialog_error:
- case tsip_dialog_transport_error:
- {
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_transporterror, msg, tsk_null);
- break;
- }
- }
-
- return ret;
-}
-
-/**Timer manager callback.
- *
- * @param self The owner of the signaled timer.
- * @param timer_id The identifier of the signaled timer.
- *
- * @return Zero if succeed and non-zero error code otherwise.
-**/
-int tsip_dialog_invite_timer_callback(const tsip_dialog_invite_t* self, tsk_timer_id_t timer_id)
-{
- int ret = -1;
-
- if(self){
- if(timer_id == self->stimers.timer.id){
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_timerRefresh, tsk_null, tsk_null);
- }
- else if(timer_id == self->timer100rel.id){
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_timer100rel, tsk_null, tsk_null);
- }
- else if(timer_id == self->qos.timer.id){
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_timerRSVP, tsk_null, tsk_null);
- }
- else if(timer_id == self->timershutdown.id){
- ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_shutdown_timedout, tsk_null, tsk_null);
- }
- }
- return ret;
-}
-
-tsip_dialog_invite_t* tsip_dialog_invite_create(const tsip_ssession_handle_t* ss, const char* call_id)
-{
- return tsk_object_new(tsip_dialog_invite_def_t, ss, call_id);
-}
-
-int tsip_dialog_invite_init(tsip_dialog_invite_t *self)
-{
- /* special cases (fsm) should be tried first */
-
- /* Client-Side dialog */
- tsip_dialog_invite_client_init(self);
- /* Server-Side dialog */
- tsip_dialog_invite_server_init(self);
- /* 3GPP TS 24.610: Communication Hold */
- tsip_dialog_invite_hold_init(self);
- /* RFC 4028: Session Timers */
- tsip_dialog_invite_stimers_init(self);
- /* RFC 3312: Integration of Resource Management and Session Initiation Protocol (SIP) */
- tsip_dialog_invite_qos_init(self);
-
- /* Initialize the state machine (all other cases) */
- tsk_fsm_set(TSIP_DIALOG_GET_FSM(self),
-
- /*=======================
- * === Started ===
- */
- // Started -> (Any) -> Started
- TSK_FSM_ADD_ALWAYS_NOTHING(_fsm_state_Started, "tsip_dialog_invite_Started_2_Started_X_any"),
-
- /*=======================
- * === Connected ===
- */
- // Connected -> (Send DTMF) -> Connected
- TSK_FSM_ADD_ALWAYS(_fsm_state_Connected, _fsm_action_dtmf_send, _fsm_state_Connected, x0000_Connected_2_Connected_X_oDTMF, "x0000_Connected_2_Connected_X_oDTMF"),
- // Connected -> (Send MSRP message) -> Connected
- TSK_FSM_ADD_ALWAYS(_fsm_state_Connected, _fsm_action_msrp_send_msg, _fsm_state_Connected, x0000_Connected_2_Connected_X_oLMessage, "x0000_Connected_2_Connected_X_oLMessage"),
- // Connected -> (iACK) -> Connected
- TSK_FSM_ADD_ALWAYS(_fsm_state_Connected, _fsm_action_iACK, _fsm_state_Connected, x0000_Connected_2_Connected_X_iACK, "x0000_Connected_2_Connected_X_iACK"),
- // Connected -> (iINVITE) -> Connected
- TSK_FSM_ADD_ALWAYS(_fsm_state_Connected, _fsm_action_iINVITE, _fsm_state_Connected, x0000_Connected_2_Connected_X_iINVITEorUPDATE, "x0000_Connected_2_Connected_X_iINVITE"),
- // Connected -> (iUPDATE) -> Connected
- TSK_FSM_ADD_ALWAYS(_fsm_state_Connected, _fsm_action_iUPDATE, _fsm_state_Connected, x0000_Connected_2_Connected_X_iINVITEorUPDATE, "x0000_Connected_2_Connected_X_iUPDATE"),
-
- /*=======================
- * === BYE/SHUTDOWN ===
- */
- // Any -> (oBYE) -> Trying
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_oBYE, _fsm_state_Trying, x0000_Any_2_Trying_X_oBYE, "x0000_Any_2_Trying_X_oBYE"),
- // Any -> (oBYE) -> Terminated
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_iBYE, _fsm_state_Terminated, x0000_Any_2_Terminated_X_iBYE, "x0000_Any_2_Terminated_X_iBYE"),
- // Trying -> (i2xx BYE) -> Terminated
- TSK_FSM_ADD(_fsm_state_Trying, _fsm_action_i2xx, _fsm_cond_is_resp2BYE, _fsm_state_Terminated, tsk_null, "x0000_Trying_2_Terminated_X_i2xxBYE"),
- // Trying -> (i3xx-i6xx BYE) -> Terminated
- TSK_FSM_ADD(_fsm_state_Trying, _fsm_action_i300_to_i699, _fsm_cond_is_resp2BYE, _fsm_state_Terminated, tsk_null, "x0000_Trying_2_Terminated_X_i2xxTOi6xxBYE"),
- // Any -> (Shutdown) -> Trying
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_oShutdown, _fsm_state_Trying, x0000_Any_2_Trying_X_shutdown, "x0000_Any_2_Trying_X_shutdown"),
- // Any -> (shutdown timedout) -> Terminated
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_shutdown_timedout, _fsm_state_Terminated, tsk_null, "tsip_dialog_invite_shutdown_timedout"),
-
-
- /*=======================
- * === Any ===
- */
- // Any -> (i1xx) -> Any
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_i1xx, tsk_fsm_state_any, x0000_Any_2_Any_X_i1xx, "x0000_Any_2_Any_X_i1xx"),
- // Any -> (i401/407)
- //
- // Any -> (iPRACK) -> Any
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_iPRACK, tsk_fsm_state_any, x0000_Any_2_Any_X_iPRACK, "x0000_Any_2_Any_X_iPRACK"),
- // Any -> (iOPTIONS) -> Any
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_iOPTIONS, tsk_fsm_state_any, x0000_Any_2_Any_X_iOPTIONS, "x0000_Any_2_Any_X_iOPTIONS"),
- // Any -> (i2xx INVITE) -> Any
- TSK_FSM_ADD(tsk_fsm_state_any, _fsm_action_i2xx, _fsm_cond_is_resp2INVITE, tsk_fsm_state_any, x0000_Any_2_Any_X_i2xxINVITEorUPDATE, "x0000_Any_2_Any_X_i2xxINVITE"),
- // Any -> (i2xx UPDATE) -> Any
- TSK_FSM_ADD(tsk_fsm_state_any, _fsm_action_i2xx, _fsm_cond_is_resp2UPDATE, tsk_fsm_state_any, x0000_Any_2_Any_X_i2xxINVITEorUPDATE, "x0000_Any_2_Any_X_i2xxUPDATE"),
- // Any -> (i401/407 INVITE) -> Any
- TSK_FSM_ADD(tsk_fsm_state_any, _fsm_action_i401_i407, _fsm_cond_is_resp2INVITE, tsk_fsm_state_any, x0000_Any_2_Any_X_i401_407_INVITEorUPDATE, "x0000_Any_2_Any_X_i401_407_INVITE"),
- // Any -> (i401/407 UPDATE) -> Any
- TSK_FSM_ADD(tsk_fsm_state_any, _fsm_action_i401_i407, _fsm_cond_is_resp2UPDATE, tsk_fsm_state_any, x0000_Any_2_Any_X_i401_407_INVITEorUPDATE, "x0000_Any_2_Any_X_i401_407_UPDATE"),
- // Any -> (i2xx PRACK) -> Any
- TSK_FSM_ADD(tsk_fsm_state_any, _fsm_action_i2xx, _fsm_cond_is_resp2PRACK, tsk_fsm_state_any, tsk_null, "x0000_Any_2_Any_X_i2xxPRACK"), // FIXME: remove, now we have server
- // Any -> (transport error) -> Terminated
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_transporterror, _fsm_state_Terminated, x9998_Any_2_Any_X_transportError, "x9998_Any_2_Any_X_transportError"),
- // Any -> (transport error) -> Terminated
- TSK_FSM_ADD_ALWAYS(tsk_fsm_state_any, _fsm_action_error, _fsm_state_Terminated, x9999_Any_2_Any_X_Error, "x9999_Any_2_Any_X_Error"),
-
- TSK_FSM_ADD_NULL());
-
- /* Sets callback function */
- TSIP_DIALOG(self)->callback = TSIP_DIALOG_EVENT_CALLBACK_F(tsip_dialog_invite_event_callback);
-
- /* Timers */
- self->timer100rel.id = TSK_INVALID_TIMER_ID;
- self->stimers.timer.id = TSK_INVALID_TIMER_ID;
- self->timershutdown.id = TSK_INVALID_TIMER_ID;
- self->timershutdown.timeout = TSIP_DIALOG_SHUTDOWN_TIMEOUT;
-
- return 0;
-}
-
-// start sending
-int tsip_dialog_invite_start(tsip_dialog_invite_t *self)
-{
- int ret = -1;
- if(self && !TSIP_DIALOG(self)->running){
- if(!(ret = tsip_dialog_fsm_act(TSIP_DIALOG(self), _fsm_action_oINVITE, tsk_null, tsk_null))){
- TSIP_DIALOG(self)->running = tsk_true;
- }
- }
- return ret;
-}
-
-int tsip_dialog_invite_process_ro(tsip_dialog_invite_t *self, const tsip_message_t* message)
-{
- tsdp_message_t* sdp_ro = tsk_null;
- int ret = 0;
-
- if(!self || !message){
- TSK_DEBUG_ERROR("Invalid parameter");
- return -1;
- }
-
- /* Parse SDP content */
- if(TSIP_MESSAGE_HAS_CONTENT(message)){
- if(tsk_striequals("application/sdp", TSIP_MESSAGE_CONTENT_TYPE(message))){
- if(!(sdp_ro = tsdp_message_parse(TSIP_MESSAGE_CONTENT_DATA(message), TSIP_MESSAGE_CONTENT_DATA_LENGTH(message)))){
- TSK_DEBUG_ERROR("Failed to parse remote sdp message");
- return -2;
- }
- }
- else{
- TSK_DEBUG_ERROR("[%s] content-type is not supportted", TSIP_MESSAGE_CONTENT_TYPE(message));
- return -3;
- }
- }
- else{
- if(TSIP_DIALOG(self)->state == tsip_initial && TSIP_REQUEST_IS_INVITE(message)){ /* Bodiless initial INVITE */
- TSIP_DIALOG_GET_SS(self)->media.type = tmedia_audio; // Default media for initial INVITE to send with the first reliable answer
- }
- else{
- return 0;
- }
- }
-
- /* Create session Manager if not already done */
- if(!self->msession_mgr){
- if(sdp_ro){
- TSIP_DIALOG_GET_SS(self)->media.type = tmedia_type_from_sdp(sdp_ro);
- }
- self->msession_mgr = tmedia_session_mgr_create(TSIP_DIALOG_GET_SS(self)->media.type, TSIP_DIALOG_GET_STACK(self)->network.local_ip,
- TNET_SOCKET_TYPE_IS_IPV6(TSIP_DIALOG_GET_STACK(self)->network.proxy_cscf_type), (sdp_ro == tsk_null));
- if(TSIP_DIALOG_GET_STACK(self)->natt.ctx){
- tmedia_session_mgr_set_natt_ctx(self->msession_mgr, TSIP_DIALOG_GET_STACK(self)->natt.ctx, TSIP_DIALOG_GET_STACK(self)->network.aor.ip);
- }
- }
-
- if(sdp_ro){
- if((ret = tmedia_session_mgr_set_ro(self->msession_mgr, sdp_ro))){
- TSK_DEBUG_ERROR("Failed to set remote offer");
- goto bail;
- }
- }
-
- /* start session manager */
- if(!self->msession_mgr->started && (self->msession_mgr->sdp.lo && self->msession_mgr->sdp.ro)){
- /* Set MSRP Callback */
- if((self->msession_mgr->type & tmedia_msrp) == tmedia_msrp){
- tmedia_session_mgr_set_msrp_cb(self->msession_mgr, TSIP_DIALOG_GET_SS(self)->userdata, TSIP_DIALOG_GET_SS(self)->media.msrp.callback);
- }
- /* starts */
- ret = tmedia_session_mgr_start(self->msession_mgr);
- if(ret == 0 && TSIP_DIALOG(self)->state == tsip_early){
- TSIP_DIALOG_INVITE_SIGNAL(self, tsip_m_early_media,
- TSIP_RESPONSE_CODE(message), TSIP_RESPONSE_PHRASE(message), message);
- }
- }
-
-bail:
- TSK_OBJECT_SAFE_FREE(sdp_ro);
-
- return ret;
-}
-
-
-//--------------------------------------------------------
-// == STATE MACHINE BEGIN ==
-//--------------------------------------------------------
-
-int x0000_Connected_2_Connected_X_oDTMF(va_list *app)
-{
- int ret;
- tsip_dialog_invite_t *self;
- const tsip_action_t* action;
-
- self = va_arg(*app, tsip_dialog_invite_t *);
- va_arg(*app, const tsip_message_t *);
- action = va_arg(*app, const tsip_action_t *);
-
- if(action){
- ret = tmedia_session_mgr_send_dtmf(self->msession_mgr, action->dtmf.event);
- }
- else{
- TSK_DEBUG_ERROR("Invalid action");
- }
-
- return 0; /* always */
-}
-
-int x0000_Connected_2_Connected_X_oLMessage(va_list *app)
-{
- int ret;
- tsip_dialog_invite_t *self;
- const tsip_action_t* action;
-
- self = va_arg(*app, tsip_dialog_invite_t *);
- va_arg(*app, const tsip_message_t *);
- action = va_arg(*app, const tsip_action_t *);
-
- if(action && action->payload){
- ret = tmedia_session_mgr_send_message(self->msession_mgr, action->payload->data, action->payload->size,
- action->media.params);
- }
- else{
- TSK_DEBUG_ERROR("Invalid action");
- }
-
- return 0;
-}
-
-/* Connected -> (iACK) -> Connected */
-int x0000_Connected_2_Connected_X_iACK(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_request_t *rACK = va_arg(*app, const tsip_request_t *);
- int ret;
-
- // Nothing to do (in future will be used to ensure the session)
-
- /* Process remote offer */
- if((ret = tsip_dialog_invite_process_ro(self, rACK))){
- /* Send error */
- return ret;
- }
-
- /* alert the user */
- TSIP_DIALOG_INVITE_SIGNAL(self, tsip_i_request,
- tsip_event_code_dialog_request_incoming, "Incoming Request.", rACK);
-
- return 0;
-}
-
-/* Connected -> (iINVITE or iUPDATE) -> Connected */
-int x0000_Connected_2_Connected_X_iINVITEorUPDATE(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_request_t *rINVITEorUPDATE = va_arg(*app, const tsip_request_t *);
-
- int ret = 0;
-
- /* process remote offer */
- if((ret = tsip_dialog_invite_process_ro(self, rINVITEorUPDATE))){
- /* Send error */
- return ret;
- }
-
- /* Send 200 OK */
- ret = send_RESPONSE(self, rINVITEorUPDATE, 200, "OK",
- (self->msession_mgr && (self->msession_mgr->ro_changed || self->msession_mgr->state_changed)));
-
- /* session timers */
- if(self->stimers.timer.timeout){
- tsip_dialog_invite_stimers_handle(self, rINVITEorUPDATE);
- }
-
- /* hold/resume */
- tsip_dialog_invite_hold_handle(self, rINVITEorUPDATE);
-
- /* alert the user */
- TSIP_DIALOG_INVITE_SIGNAL(self, tsip_i_request,
- tsip_event_code_dialog_request_incoming, "Incoming Request.", rINVITEorUPDATE);
-
-
- return ret;
-}
-
-/* Any -> (iPRACK) -> Any */
-int x0000_Any_2_Any_X_iPRACK(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_request_t *rPRACK = va_arg(*app, const tsip_request_t *);
-
- const tsip_header_RAck_t* RAck;
-
- if((RAck = (const tsip_header_RAck_t*)tsip_message_get_header(rPRACK, tsip_htype_RAck))){
- if((RAck->seq == self->rseq) &&
- (tsk_striequals(RAck->method, self->last_o1xxrel->CSeq->method)) &&
- (RAck->cseq == self->last_o1xxrel->CSeq->seq)){
-
- ++self->rseq;
- return send_RESPONSE(self, rPRACK, 200, "OK", tsk_false);
- }
- }
-
- /* Send 488 */
- return send_ERROR(self, self->last_iInvite, 488, "Not Acceptable", "SIP; cause=488; text=\"Failed to match PRACK request\"");
-}
-
-/* Any -> (iOPTIONS) -> Any */
-int x0000_Any_2_Any_X_iOPTIONS(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_request_t *rOPTIONS = va_arg(*app, const tsip_request_t *);
-
- /* Alert user */
-
- /* Send 2xx */
- send_RESPONSE(self, rOPTIONS, 200, "OK", tsk_false);
-
- return 0;
-}
-
-
-/* Any --> (i401/407 INVITE or UPDATE) --> Any */
-int x0000_Any_2_Any_X_i401_407_INVITEorUPDATE(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_response_t *response = va_arg(*app, const tsip_response_t *);
- int ret;
-
- if((ret = tsip_dialog_update(TSIP_DIALOG(self), response))){
- /* Alert the user. */
- TSIP_DIALOG_INVITE_SIGNAL(self, tsip_ao_request,
- TSIP_RESPONSE_CODE(response), TSIP_RESPONSE_PHRASE(response), response);
-
- return ret;
- }
-
- return send_INVITEorUPDATE(self, TSIP_RESPONSE_IS_TO_INVITE(response), tsk_false);
-}
-
-/* Any --> (i2xx INVITE or i2xx UPDATE) --> Any */
-int x0000_Any_2_Any_X_i2xxINVITEorUPDATE(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_response_t *r2xx = va_arg(*app, const tsip_response_t *);
- int ret = 0;
-
- /* Update the dialog state */
- if((ret = tsip_dialog_update(TSIP_DIALOG(self), r2xx))){
- return ret;
- }
-
- /* session timers */
- if(self->stimers.timer.timeout){
- tsip_dialog_invite_stimers_handle(self, r2xx);
- }
-
- /* Process remote offer */
- if((ret = tsip_dialog_invite_process_ro(self, r2xx))){
- /* Send error */
- return ret;
- }
-
- /* send ACK */
- if(TSIP_RESPONSE_IS_TO_INVITE(r2xx)){
- ret = send_ACK(self, r2xx);
- }
-
- return ret;
-}
-
-
-/* Any -> (oBYE) -> Trying */
-int x0000_Any_2_Trying_X_oBYE(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
-
- /* Alert the user */
- TSIP_DIALOG_SIGNAL(self, tsip_event_code_dialog_terminating, "Terminating dialog");
-
- /* send BYE */
- return send_BYE(self);
-}
-
-/* Any -> (iBYE) -> Terminated */
-int x0000_Any_2_Terminated_X_iBYE(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_request_t *rBYE = va_arg(*app, const tsip_request_t *);
-
- /* set last error (or info) */
- tsip_dialog_set_lasterror(TSIP_DIALOG(self), "Call Terminated");
-
- /* send 200 OK */
- return send_RESPONSE(self, rBYE, 200, "OK", tsk_false);
-}
-
-/* Any -> Shutdown -> Terminated */
-int x0000_Any_2_Trying_X_shutdown(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
-
- /* schedule shutdow timeout */
- TSIP_DIALOG_INVITE_TIMER_SCHEDULE(shutdown);
-
- /* alert user */
- TSIP_DIALOG_SIGNAL(self, tsip_event_code_dialog_terminating, "Terminating dialog");
-
- if(TSIP_DIALOG(self)->state == tsip_established){
- return send_BYE(self);
- }
- else if(TSIP_DIALOG(self)->state == tsip_early){
- return send_CANCEL(self);
- }
-
- return 0;
-}
-
-
-/* Any -> (i1xx) -> Any */
-int x0000_Any_2_Any_X_i1xx(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
- const tsip_response_t *r1xx = va_arg(*app, const tsip_response_t *);
- int ret = 0;
-
- /* Update the dialog state */
- if((ret = tsip_dialog_update(TSIP_DIALOG(self), r1xx))){
- return ret;
- }
-
- /* RFC 3262 - 4 UAC Behavior
- If a provisional response is received for an initial request, and
- that response contains a Require header field containing the option
- tag 100rel, the response is to be sent reliably. If the response is
- a 100 (Trying) (as opposed to 101 to 199), this option tag MUST be
- ignored, and the procedures below MUST NOT be used.
-
- Assuming the response is to be transmitted reliably, the UAC MUST
- create a new request with method PRACK. This request is sent within
- the dialog associated with the provisional response (indeed, the
- provisional response may have created the dialog). PRACK requests
- MAY contain bodies, which are interpreted according to their type and
- disposition.
-
- Note that the PRACK is like any other non-INVITE request within a
- dialog. In particular, a UAC SHOULD NOT retransmit the PRACK request
- when it receives a retransmission of the provisional response being
- acknowledged, although doing so does not create a protocol error.
- */
- if((TSIP_RESPONSE_CODE(r1xx) >= 101 && TSIP_RESPONSE_CODE(r1xx) <=199) && tsip_message_required(r1xx, "100rel")){
- /* Process Remote offer */
- if((ret = tsip_dialog_invite_process_ro(self, r1xx))){
- /* Send Error */
- return ret;
- }
-
- if((ret = send_PRACK(self, r1xx))){
- return ret;
- }
- }
-
- /* QoS Reservation */
- if((self->qos.timer.id == TSK_INVALID_TIMER_ID) && tsip_message_required(r1xx, "precondition") && !tmedia_session_mgr_canresume(self->msession_mgr)){
- tsip_dialog_invite_qos_timer_schedule(self);
- }
-
- /* alert the user */
- TSIP_DIALOG_INVITE_SIGNAL(self, tsip_ao_request,
- TSIP_RESPONSE_CODE(r1xx), TSIP_RESPONSE_PHRASE(r1xx), r1xx);
-
- return ret;
-}
-
-int x9998_Any_2_Any_X_transportError(va_list *app)
-{
- tsip_dialog_invite_t *self = va_arg(*app, tsip_dialog_invite_t *);
-
- /* set last error (or info) */
- tsip_dialog_set_lasterror(TSIP_DIALOG(self), "Transport error");
-
- return 0;
-}
-
-int x9999_Any_2_Any_X_Error(va_list *app)
-{
- return 0;
-}
-
-
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-// == STATE MACHINE END ==
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-
-// send INVITE/UPDATE request
-int send_INVITEorUPDATE(tsip_dialog_invite_t *self, tsk_bool_t is_INVITE, tsk_bool_t force_sdp)
-{
- int ret = -1;
- tsip_request_t *request = tsk_null;
- tsk_bool_t bodiless = tsk_false;
-
-#if BODILESS_INVITE
- if(TSIP_DIALOG(self)->state == tsip_initial){
- bodiless = tsk_true;
- }
-#endif
-
- if(!self){
- TSK_DEBUG_ERROR("Invalid parameter");
- goto bail;
- }
-
- if((request = tsip_dialog_request_new(TSIP_DIALOG(self), is_INVITE ? "INVITE" : "UPDATE"))){
-
- /* apply action params to the request (will add a content if the action contains one) */
- if(TSIP_DIALOG(self)->curr_action){
- tsip_dialog_apply_action(request, TSIP_DIALOG(self)->curr_action);
- }
-
- if(!bodiless){
- /* add our payload if current action does not have one */
- if((force_sdp || is_INVITE) || ((self->msession_mgr && self->msession_mgr->state_changed) || (TSIP_DIALOG(self)->state == tsip_initial))){
- if(!TSIP_DIALOG(self)->curr_action || !TSIP_DIALOG(self)->curr_action->payload){
- const tsdp_message_t* sdp_lo;
- char* sdp;
- if((sdp_lo = tmedia_session_mgr_get_lo(self->msession_mgr)) && (sdp = tsdp_message_tostring(sdp_lo))){
- tsip_message_add_content(request, "application/sdp", sdp, tsk_strlen(sdp));
- TSK_FREE(sdp);
- }
- }
- }
- }
-
- /* Session timers */
- if(self->stimers.timer.timeout){
- if(self->require.timer){
- tsip_message_add_headers(request,
- TSIP_HEADER_SESSION_EXPIRES_VA_ARGS(self->stimers.timer.timeout, tsk_striequals(self->stimers.refresher, "uas")),
- TSIP_HEADER_REQUIRE_VA_ARGS("timer"),
- tsk_null
- );
- }
- else if(self->supported.timer){
- tsip_message_add_headers(request,
- TSIP_HEADER_SESSION_EXPIRES_VA_ARGS(self->stimers.timer.timeout, tsk_striequals(self->stimers.refresher, "uas")),
- TSIP_HEADER_SUPPORTED_VA_ARGS("timer"),
- tsk_null
- );
- }
-
- }
-
- if(self->stimers.minse){
- tsip_message_add_headers(request,
- TSIP_HEADER_MIN_SE_VA_ARGS(self->stimers.minse),
- tsk_null
- );
- }
-
- /* 100rel */
- if(self->require._100rel){
- tsip_message_add_headers(request,
- TSIP_HEADER_REQUIRE_VA_ARGS("100rel"),
- tsk_null
- );
- }
- else if(self->supported._100rel){
- tsip_message_add_headers(request,
- TSIP_HEADER_SUPPORTED_VA_ARGS("100rel"),
- tsk_null
- );
- }
-
- /* QoS */
- if(self->require.precondition){
- tsip_message_add_headers(request,
- TSIP_HEADER_REQUIRE_VA_ARGS("precondition"),
- tsk_null
- );
- }
- else if(self->supported.precondition){
- tsip_message_add_headers(request,
- TSIP_HEADER_SUPPORTED_VA_ARGS("precondition"),
- tsk_null
- );
- }
-
-
- /* Always added headers */
- // Explicit Communication Transfer (3GPP TS 24.629)
- /*tsip_message_add_headers(request,
- TSIP_HEADER_SUPPORTED_VA_ARGS("norefersub,replaces"),
- tsk_null
- );*/
-
- /* send the request */
- ret = tsip_dialog_request_send(TSIP_DIALOG(self), request);
- if(ret == 0){
- /* update last INVITE */
- TSK_OBJECT_SAFE_FREE(self->last_oInvite);
- self->last_oInvite = request;
- }
- else{
- TSK_OBJECT_SAFE_FREE(request);
- }
- }
-
-bail:
- return ret;
-}
-
-// Send PRACK
-int send_PRACK(tsip_dialog_invite_t *self, const tsip_response_t* r1xx)
-{
- // "Require: 100rel\r\n" should be checked by the caller of this function
- int ret = -1;
- tsip_request_t *request = tsk_null;
- const tsip_header_RSeq_t* RSeq;
-
- if(!self || !r1xx || !r1xx->CSeq){
- TSK_DEBUG_ERROR("Invalid parameter");
- goto bail;
- }
-
-
- /* RFC 3262 - 4 UAC Behavior
- The UAC MUST maintain a sequence number that indicates the most recently
- received in-order reliable provisional response for the initial request.
- */
- if((RSeq = (const tsip_header_RSeq_t*)tsip_message_get_header(r1xx, tsip_htype_RSeq))){
-
- /* RFC 3262 - 4 UAC Behavior
- If the UAC receives another reliable provisional
- response to the same request, and its RSeq value is not one higher
- than the value of the sequence number, that response MUST NOT be
- acknowledged with a PRACK, and MUST NOT be processed further by the
- UAC. An implementation MAY discard the response, or MAY cache the
- response in the hopes of receiving the missing responses.
- */
- if(self->rseq && (RSeq->seq <= self->rseq)){
- TSK_DEBUG_WARN("1xx.RSeq value is not one higher than lastINVITE.RSeq.");
- ret = 0; /* Not error */
- goto bail;
- }
- self->rseq = RSeq->seq;
- }
-
- /* RFC 3262 - 4 UAC Behavior
- Assuming the response is to be transmitted reliably, the UAC MUST
- create a new request with method PRACK.
- */
- if(!(request = tsip_dialog_request_new(TSIP_DIALOG(self), "PRACK"))){
- goto bail;
- }
-
- /* RFC 3262 - 7.2 RAck
- The first number is the value from the RSeq header in the provisional
- response that is being acknowledged. The next number, and the
- method, are copied from the CSeq in the response that is being
- acknowledged. The method name in the RAck header is case sensitive.
- */
- TSIP_MESSAGE_ADD_HEADER(request, TSIP_HEADER_RACK_VA_ARGS(self->rseq, r1xx->CSeq->seq, r1xx->CSeq->method));
- //TSIP_MESSAGE_ADD_HEADER(request, TSIP_HEADER_DUMMY_VA_ARGS("Test", "value"));
-
- /* Initial INVITE was a bodiless request and 100rel is supported (I'm Alice)
- 1. Alice sends an initial INVITE without offer
- 2. Bob's answer is sent in the first reliable provisional response, in this case it's a 1xx INVITE response
- 3. Alice's answer is sent in the PRACK response
- */
- if(self->is_client && (self->last_oInvite && !TSIP_MESSAGE_HAS_CONTENT(self->last_oInvite))){
- const tsdp_message_t* sdp_lo;
- char* sdp;
- if((sdp_lo = tmedia_session_mgr_get_lo(self->msession_mgr)) && (sdp = tsdp_message_tostring(sdp_lo))){
- tsip_message_add_content(request, "application/sdp", sdp, tsk_strlen(sdp));
- TSK_FREE(sdp);
- }
- }
-
- // Send request
- ret = tsip_dialog_request_send(TSIP_DIALOG(self), request);
-
-bail:
- TSK_OBJECT_SAFE_FREE(request);
- return ret;
-}
-
-// Send CANCEL
-int send_CANCEL(tsip_dialog_invite_t *self)
-{
- int ret = -1;
- if(!self){
- TSK_DEBUG_ERROR("Invalid parameter");
- goto bail;
- }
- /* RFC 3261 - 9 Canceling a Request
- If the request being cancelled contains a Route header field, the
- CANCEL request MUST include that Route header field's values.
- ==> up to tsip_dialog_request_new()
- */
-
- /* RFC 3261 - 9 Canceling a Request
- Once the CANCEL is constructed, the client SHOULD check whether it
- has received any response (provisional or final) for the request
- being cancelled (herein referred to as the "original request").
-
- If no provisional response has been received, the CANCEL request MUST
- NOT be sent; rather, the client MUST wait for the arrival of a
- provisional response before sending the request.
- ==> up to the caller to check that we are not in the initial state and the FSM
- is in Trying state.
- */
-
- /* RFC 3261 - 9 Canceling a Request
- The following procedures are used to construct a CANCEL request. The
- Request-URI, Call-ID, To, the numeric part of CSeq, and From header
- fields in the CANCEL request MUST be identical to those in the
- request being cancelled, including tags. A CANCEL constructed by a
- client MUST have only a single Via header field value matching the
- top Via value in the request being cancelled. Using the same values
- for these header fields allows the CANCEL to be matched with the
- request it cancels (Section 9.2 indicates how such matching occurs).
- However, the method part of the CSeq header field MUST have a value
- of CANCEL. This allows it to be identified and processed as a
- transaction in its own right (See Section 17)
- */
- if(self->last_oInvite){
- /* to avoid concurrent access, take a reference to the request */
- tsip_request_t* last_oInvite = tsk_object_ref(self->last_oInvite);
- tsip_request_t* cancel;
-
- if((cancel = tsip_request_create("CANCEL", last_oInvite->line.request.uri))){
- const tsk_list_item_t* item;
- const tsip_header_t* header;
-
- tsip_message_add_headers(cancel,
- TSIP_HEADER_CSEQ_VA_ARGS(last_oInvite->CSeq->seq, "CANCEL"),
- TSIP_HEADER_MAX_FORWARDS_VA_ARGS(TSIP_HEADER_MAX_FORWARDS_DEFAULT),
- TSIP_HEADER_CONTENT_LENGTH_VA_ARGS(0),
- tsk_null);
-
- cancel->Call_ID = tsk_object_ref(last_oInvite->Call_ID);
- cancel->To = tsk_object_ref(last_oInvite->To);
- cancel->From = tsk_object_ref(last_oInvite->From);
- cancel->firstVia = tsk_object_ref(last_oInvite->firstVia);
-
- // Copy Authorizations, Routes and Proxy-Auth
- tsk_list_foreach(item, last_oInvite->headers){
- if(!(header = TSIP_HEADER(item->data))){
- continue;
- }
-
- switch(header->type){
- case tsip_htype_Route:
- case tsip_htype_Proxy_Authorization:
- case tsip_htype_Authorization:
- header = tsk_object_ref((void*)header);
- if(!cancel->headers){
- cancel->headers = tsk_list_create();
- }
- tsk_list_push_back_data(cancel->headers, (void**)&header);
- break;
- }
- }
-
- ret = tsip_dialog_request_send(TSIP_DIALOG(self), cancel);
- TSK_OBJECT_SAFE_FREE(cancel);
- }
- else{
- TSK_DEBUG_ERROR("Failed to create CANCEL request");
- ret = -2;
- }
-
- TSK_OBJECT_SAFE_FREE(last_oInvite);
- return ret;
- }
- else{
- TSK_DEBUG_WARN("There is no INVITE request to cancel");
- return 0;
- }
-
-bail:
- return ret;
-}
-
-// Send BYE
-int send_BYE(tsip_dialog_invite_t *self)
-{
- int ret = -1;
- tsip_request_t *bye = tsk_null;
-
- if(!self){
- TSK_DEBUG_ERROR("Invalid parameter");
- goto bail;
- }
- /* RFC 3261 - 15.1.1 UAC Behavior
- A BYE request is constructed as would any other request within a
- dialog, as described in Section 12.
-
- Once the BYE is constructed, the UAC core creates a new non-INVITE
- client transaction, and passes it the BYE request. The UAC MUST
- consider the session terminated (and therefore stop sending or
- listening for media) as soon as the BYE request is passed to the
- client transaction. If the response for the BYE is a 481
- (Call/Transaction Does Not Exist) or a 408 (Request Timeout) or no
-
- response at all is received for the BYE (that is, a timeout is
- returned by the client transaction), the UAC MUST consider the
- session and the dialog terminated.
- */
- if((bye = tsip_dialog_request_new(TSIP_DIALOG(self), "BYE"))){
- ret = tsip_dialog_request_send(TSIP_DIALOG(self), bye);
- TSK_OBJECT_SAFE_FREE(bye);
- }
-
-bail:
- return ret;
-}
-
-// Send ACK
-int send_ACK(tsip_dialog_invite_t *self, const tsip_response_t* r2xxINVITE)
-{
- int ret = -1;
- tsip_request_t *request = tsk_null;
-
- if(!self){
- TSK_DEBUG_ERROR("Invalid parameter");
- goto bail;
- }
-
- if((request = tsip_dialog_request_new(TSIP_DIALOG(self), "ACK"))){
-
- /* The initial INVITE sent by us was a bodiless request and we don't support 100rel (We are Alice)
- 1. Alice sends initial INVITE without offer
- 2. Bob's offer is sent in the 2xx INVITE response
- 3. Alice's answer is sent in the ACK request
- */
- if(self->is_client && (self->last_oInvite && !TSIP_MESSAGE_HAS_CONTENT(self->last_oInvite))){
- const tsdp_message_t* sdp_lo;
- char* sdp;
- if((sdp_lo = tmedia_session_mgr_get_lo(self->msession_mgr)) && (sdp = tsdp_message_tostring(sdp_lo))){
- tsip_message_add_content(request, "application/sdp", sdp, tsk_strlen(sdp));
- TSK_FREE(sdp);
- }
-
- // Start media session if not done
- if(!self->msession_mgr->started && (self->msession_mgr->sdp.lo && self->msession_mgr->sdp.ro)){
- /* Set MSRP Callback */
- if((self->msession_mgr->type & tmedia_msrp) == tmedia_msrp){
- tmedia_session_mgr_set_msrp_cb(self->msession_mgr, TSIP_DIALOG_GET_SS(self)->userdata, TSIP_DIALOG_GET_SS(self)->media.msrp.callback);
- }
- ret = tmedia_session_mgr_start(self->msession_mgr);
- }
- }
-
- /* RFC 3261 - 13.2.2.4 2xx Responses
- The UAC core MUST generate an ACK request for each 2xx received from
- the transaction layer. The header fields of the ACK are constructed
- in the same way as for any request sent within a dialog (see Section
- 12) with the exception of the CSeq and the header fields related to
- authentication. The sequence number of the CSeq header field MUST be
- the same as the INVITE being acknowledged, but the CSeq method MUST
- be ACK. The ACK MUST contain the same credentials as the INVITE. If
- the 2xx contains an offer (based on the rules above), the ACK MUST
- carry an answer in its body. If the offer in the 2xx response is not
- acceptable, the UAC core MUST generate a valid answer in the ACK and
- then send a BYE immediately.
- ==> Credentials will be added by tsip_dialog_request_new() because they are
- associated to the dialog itself.
- ==> It's up to us to add/update the CSeq number.
- ==> ACK requests sent here will create new client transactions, which means that
- they will have there own branches. This is not the case for ACK requests sent from
- the transaction layer.
- */
- request->CSeq->seq = r2xxINVITE->CSeq->seq; /* As the 2xx has the same CSeq than the INVITE */
-
- /* RFC 3261 - 13.2.2.4 2xx Responses
- Once the ACK has been constructed, the procedures of [4] are used to
- determine the destination address, port and transport. However, the
- request is passed to the transport layer directly for transmission,
- rather than a client transaction. This is because the UAC core
- handles retransmissions of the ACK, not the transaction layer. The
- ACK MUST be passed to the client transport every time a
- retransmission of the 2xx final response that triggered the ACK
- arrives.
- */
- if(TSIP_DIALOG_GET_STACK(self)->layer_transport){
- ret = tsip_transport_layer_send(TSIP_DIALOG_GET_STACK(self)->layer_transport, tsk_null, request);
- }
- else{
- ret = -1;
- TSK_DEBUG_ERROR("Not Transport layer associated to this stack");
- }
- TSK_OBJECT_SAFE_FREE(request);
- }
-
-bail:
- return ret;
-}
-
-// Send any response
-int send_RESPONSE(tsip_dialog_invite_t *self, const tsip_request_t* request, short code, const char* phrase, tsk_bool_t force_sdp)
-{
- tsip_response_t *response;
- int ret = -1;
-
- if((response = tsip_dialog_response_new(TSIP_DIALOG(self), code, phrase, request))){
- if(TSIP_REQUEST_IS_INVITE(request) || TSIP_REQUEST_IS_UPDATE(request)){
- /* Session timers (for 2xx to INVITE or UPDATE) */
- if(self->stimers.timer.timeout){
- tsip_message_add_headers(response,
- TSIP_HEADER_SUPPORTED_VA_ARGS("timer"),
- TSIP_HEADER_SESSION_EXPIRES_VA_ARGS(self->stimers.timer.timeout, tsk_striequals(self->stimers.refresher, "uas")),
- tsk_null
- );
- }
- if(self->stimers.minse){
- tsip_message_add_headers(response,
- TSIP_HEADER_MIN_SE_VA_ARGS(self->stimers.minse),
- tsk_null
- );
- }
- if(code == 422){
- tsip_message_add_headers(response,
- TSIP_HEADER_DUMMY_VA_ARGS("Reason", "SIP; cause=422; text=\"Session Interval Too Small\""),
- tsk_null
- );
- }
-
- /* 180 Ringing */
- /* 183 Session in Progress */
- if(code == 180 || code == 183){
- if(self->require._100rel){
- tsip_message_add_headers(response,
- TSIP_HEADER_REQUIRE_VA_ARGS("100rel"),
- TSIP_HEADER_RSEQ_VA_ARGS(self->rseq),
- tsk_null
- );
- TSK_OBJECT_SAFE_FREE(self->last_o1xxrel);
- self->last_o1xxrel = tsk_object_ref(response);
-
- /* No-Initial reliable 1xx will use tsip_dialog_response_send() instead of this function
- * ==> can reseset timeout value and make initial schedule */
- TSIP_DIALOG_TIMER_CANCEL(100rel);
- self->timer100rel.timeout = tsip_timers_getA();
- TSIP_DIALOG_INVITE_TIMER_SCHEDULE(100rel);
- }
- }
-
- /* Precondition */
- if(code == 180 || code == 183){
- if(self->require.precondition){
- tsip_message_add_headers(response,
- TSIP_HEADER_REQUIRE_VA_ARGS("precondition"),
- tsk_null
- );
- }
- }
-
-
- /* SDP content */
- if(self->msession_mgr && force_sdp){
- const tsdp_message_t* sdp_lo;
- char* sdp;
- if((sdp_lo = tmedia_session_mgr_get_lo(self->msession_mgr)) && (sdp = tsdp_message_tostring(sdp_lo))){
- tsip_message_add_content(response, "application/sdp", sdp, tsk_strlen(sdp));
- TSK_FREE(sdp);
- }
- }
-
- /* Add Allow header */
- tsip_message_add_headers(response,
- TSIP_HEADER_DUMMY_VA_ARGS("Allow", TSIP_HEADER_ALLOW_DEFAULT),
- tsk_null
- );
- }
-
- ret = tsip_dialog_response_send(TSIP_DIALOG(self), response);
- TSK_OBJECT_SAFE_FREE(response);
- }
- return ret;
-}
-
-// Send error response
-int send_ERROR(tsip_dialog_invite_t* self, const tsip_request_t* request, short code, const char* phrase, const char* reason)
-{
- tsip_response_t *response;
-
- if(!self){
- TSK_DEBUG_ERROR("Invalid parameter");
- return -1;
- }
-
- if((response = tsip_dialog_response_new(TSIP_DIALOG(self), code, phrase, request))){
- tsip_message_add_headers(response,
- TSIP_HEADER_DUMMY_VA_ARGS("Reason", reason),
- tsk_null
- );
-
- tsip_dialog_response_send(TSIP_DIALOG(self), response);
- TSK_OBJECT_SAFE_FREE(response);
- }
- else{
- TSK_DEBUG_ERROR("Failed to create new message");
- }
- return 0;
-}
-
-// FSM callback to signal that the dialog is in the terminated state
-int tsip_dialog_invite_OnTerminated(tsip_dialog_invite_t *self)
-{
- TSK_DEBUG_INFO("=== INVITE Dialog terminated ===");
-
- /* stop session manager */
- if(self->msession_mgr && self->msession_mgr->started){
- tmedia_session_mgr_stop(self->msession_mgr);
- }
-
- /* alert the user */
- TSIP_DIALOG_SIGNAL(self, tsip_event_code_dialog_terminated,
- TSIP_DIALOG(self)->lasterror ? TSIP_DIALOG(self)->lasterror : "Call Terminated");
-
- /* Remove from the dialog layer. */
- return tsip_dialog_remove(TSIP_DIALOG(self));
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-//========================================================
-// SIP dialog INVITE object definition
-//
-static tsk_object_t* tsip_dialog_invite_ctor(tsk_object_t * self, va_list * app)
-{
- tsip_dialog_invite_t *dialog = self;
- if(dialog){
- tsip_ssession_handle_t *ss = va_arg(*app, tsip_ssession_handle_t *);
- const char* call_id = va_arg(*app, const char *);
-
- /* Initialize base class */
- tsip_dialog_init(TSIP_DIALOG(self), tsip_dialog_INVITE, call_id, ss, _fsm_state_Started, _fsm_state_Terminated);
-
- /* FSM */
- TSIP_DIALOG_GET_FSM(dialog)->debug = DEBUG_STATE_MACHINE;
- tsk_fsm_set_callback_terminated(TSIP_DIALOG_GET_FSM(dialog), TSK_FSM_ONTERMINATED_F(tsip_dialog_invite_OnTerminated), (const void*)dialog);
-
- /* Initialize the class itself */
- tsip_dialog_invite_init(self);
- }
- return self;
-}
-
-static tsk_object_t* tsip_dialog_invite_dtor(tsk_object_t * _self)
-{
- tsip_dialog_invite_t *self = _self;
- if(self){
- /* Cancel all timers */
- tsip_dialog_invite_stimers_cancel(self);
- tsip_dialog_invite_qos_timer_cancel(self);
- TSIP_DIALOG_TIMER_CANCEL(shutdown);
- TSIP_DIALOG_TIMER_CANCEL(100rel);
-
- /* DeInitialize base class */
- tsip_dialog_deinit(TSIP_DIALOG(self));
-
- /* DeInitialize self */
- TSK_OBJECT_SAFE_FREE(self->msession_mgr);
- TSK_OBJECT_SAFE_FREE(self->last_oInvite);
- TSK_OBJECT_SAFE_FREE(self->last_iInvite);
- TSK_OBJECT_SAFE_FREE(self->last_o1xxrel);
- TSK_FREE(self->stimers.refresher);
- //...
-
- TSK_DEBUG_INFO("*** INVITE Dialog destroyed ***");
- }
- return self;
-}
-
-static int tsip_dialog_invite_cmp(const tsk_object_t *obj1, const tsk_object_t *obj2)
-{
- return tsip_dialog_cmp(obj1, obj2);
-}
-
-static const tsk_object_def_t tsip_dialog_invite_def_s =
-{
- sizeof(tsip_dialog_invite_t),
- tsip_dialog_invite_ctor,
- tsip_dialog_invite_dtor,
- tsip_dialog_invite_cmp,
-};
-const tsk_object_def_t *tsip_dialog_invite_def_t = &tsip_dialog_invite_def_s;
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