doubango-android/tinyDEMO/common.c

/*
* Copyright (C) 2009 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 published 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.
*
*/
#include "common.h"

#include "invite.h"
#include "message.h"
#include "options.h"
#include "publish.h"
#include "register.h"
#include "subscribe.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

/* === default values === */
#define DEFAULT_REALM	"open-ims.test"
#define DEFAULT_IMPI "bob@"DEFAULT_REALM
#define DEFAULT_IMPU "sip:bob@"DEFAULT_REALM

#ifndef DEFAULT_LOCAL_IP
//#	ifdef ANDROID /* On the emulator */
//#		define DEFAULT_LOCAL_IP	"10.0.2.15"
//#		define DEFAULT_LOCAL_IP	"192.168.0.14"
//#	else
#		define DEFAULT_LOCAL_IP	TNET_SOCKET_HOST_ANY
//#	endif
#endif


extern ctx_t* ctx;

int stack_callback(const tsip_event_t *sipevent);
int session_handle_event(const tsip_event_t *sipevent);
int session_tostring(const session_t* session);

/* our SIP callback function */
int stack_callback(const tsip_event_t *_event)
{
    int ret = 0;

    if(!_event) { /* should never happen ...but who know? */
        TSK_DEBUG_WARN("Null SIP event.");
        return -1;
    }

#if 0
    tsk_safeobj_lock(ctx);
#endif

    switch(_event->type) {
    case tsip_event_register: {
        /* REGISTER */
        ret = register_handle_event(_event);
        break;
    }
    case tsip_event_invite: {
        /* INVITE */
        ret = invite_handle_event(_event);
        break;
    }
    case tsip_event_message: {
        /* MESSAGE */
        ret = message_handle_event(_event);
        break;
    }
    case tsip_event_options: {
        /* OPTIONS */
        ret = options_handle_event(_event);
        break;
    }
    case tsip_event_publish: {
        /* PUBLISH */
        ret = publish_handle_event(_event);
        break;
    }
    case tsip_event_subscribe: {
        /* SUBSCRIBE */
        ret = subscribe_handle_event(_event);
        break;
    }

    case tsip_event_dialog: {
        /* Common to all dialogs */
        ret = session_handle_event(_event);
        break;
    }

    case tsip_event_stack: {
        switch(_event->code) {
        case tsip_event_code_stack_started:
            TSK_DEBUG_INFO("Stack started");
            break;
        case tsip_event_code_stack_stopped:
            TSK_DEBUG_INFO("Stack stopped");
            break;
        case tsip_event_code_stack_failed_to_start:
            TSK_DEBUG_INFO("Stack failed to start");
            break;
        case tsip_event_code_stack_failed_to_stop:
            TSK_DEBUG_INFO("Stack failed to stop");
            break;
        }
        break;
    }

    default: {
        /* Unsupported */
        TSK_DEBUG_WARN("%d not supported as SIP event.", _event->type);
        ret = -3;
        break;
    }
    }
#if 0
    tsk_safeobj_unlock(ctx);
#endif

    return ret;
}

/*	==================================================================
	========================== Context =================================
*/

ctx_t* ctx_create()
{
    return tsk_object_new(ctx_def_t);
}

static tsk_object_t* ctx_ctor(tsk_object_t * self, va_list * app)
{
    ctx_t *ctx = self;
    if(ctx) {
        /* stack */
        ctx->stack = tsip_stack_create(stack_callback, DEFAULT_REALM, DEFAULT_IMPI, DEFAULT_IMPU, /* Mandatory parameters */
                                       TSIP_STACK_SET_LOCAL_IP(DEFAULT_LOCAL_IP), /* local IP */
                                       TSIP_STACK_SET_NULL() /* Mandatory */);

        /* SIP Sessions */
        ctx->sessions = tsk_list_create();

        /* user's parameters */
        ctx->params = tsk_list_create();

        /* init internal mutex */
        tsk_safeobj_init(ctx);
    }
    return self;
}

static tsk_object_t* ctx_dtor(tsk_object_t * self)
{
    ctx_t *ctx = self;
    if(ctx) {
        /* Stop the stack (as sessions are alive, you will continue to receive callbacks)*/
        tsip_stack_stop(ctx->stack);

        /* sessions : should be freed before the stack as explained on the Programmer's Guide
        * As all dialogs have been hanged up, the list should be empty ...but who know?*/
        TSK_OBJECT_SAFE_FREE(ctx->sessions);

        /* Destroy the stack */
        TSK_OBJECT_SAFE_FREE(ctx->stack);

        /* Identity */
        TSK_FREE(ctx->identity.display_name);
        TSK_FREE(ctx->identity.impu);
        TSK_FREE(ctx->identity.preferred);
        TSK_FREE(ctx->identity.impi);
        TSK_FREE(ctx->identity.password);

        /* Network */
        TSK_FREE(ctx->network.local_ip);
        TSK_FREE(ctx->network.proxy_cscf);
        TSK_FREE(ctx->network.proxy_cscf_trans);
        TSK_FREE(ctx->network.realm);

        /* Security */
        TSK_FREE(ctx->security.operator_id);

        /* Params */
        TSK_OBJECT_SAFE_FREE(ctx->params);

        /* deinit internal mutex */
        tsk_safeobj_deinit(ctx);
    }

    return self;
}

static const tsk_object_def_t ctx_def_s = {
    sizeof(ctx_t),
    ctx_ctor,
    ctx_dtor,
    tsk_null,
};
const tsk_object_def_t *ctx_def_t = &ctx_def_s;


/*	==================================================================
	========================== Stack =================================
*/

int stack_dump()
{
    const tsk_list_item_t* item;

    tsk_list_foreach(item, ctx->sessions) {
        session_tostring(item->data);
    }
    return 0;
}

int stack_config(const opts_L_t* opts)
{
    const tsk_list_item_t* item;
    const opt_t* opt;
    int ret = 0;
    tsk_param_t* param;
    tsk_bool_t pcscf_changed = tsk_false;
    tsk_bool_t stun_done = tsk_false;

    if(!opts) {
        return -1;
    }

    tsk_list_foreach(item, opts) {
        opt = item->data;

        /* Stack-level option */
        if(opt->lv != lv_none && opt->lv != lv_stack) {
            continue;
        }

        switch(opt->type) {
        case opt_amf: {
            break;
        }
        case opt_dhcpv4:
        case opt_dhcpv6: {
            tsip_stack_set(ctx->stack,
                           TSIP_STACK_SET_DISCOVERY_DHCP(tsk_true),
                           TSIP_STACK_SET_NULL());
            break;
        }
        case opt_dname: {
            break;
        }
        case opt_dns_naptr: {
            tsip_stack_set(ctx->stack,
                           TSIP_STACK_SET_DISCOVERY_NAPTR(tsk_true),
                           TSIP_STACK_SET_NULL());
            break;
        }
        case opt_header: {
            if((param = tsk_params_parse_param(opt->value, tsk_strlen(opt->value)))) {
                ret = tsip_stack_set(ctx->stack,
                                     TSIP_STACK_SET_HEADER(param->name, param->value),
                                     TSIP_STACK_SET_NULL());
                TSK_OBJECT_SAFE_FREE(param);
            }
            break;
        }
        case opt_impi: {
            tsk_strupdate(&ctx->identity.impi, opt->value);
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_IMPI(ctx->identity.impi),
                                 TSIP_STACK_SET_NULL());
            break;
        }
        case opt_impu: {
            tsk_strupdate(&ctx->identity.impu, opt->value);
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_IMPU(ctx->identity.impu),
                                 TSIP_STACK_SET_NULL());
            break;
        }
        case opt_ipv6: {
            pcscf_changed = tsk_true;
            ctx->network.ipv6 = tsk_true;
            break;
        }
        case opt_local_ip: {
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_LOCAL_IP(opt->value),
                                 TSIP_STACK_SET_NULL());
            break;
        }
        case opt_local_port: {
            unsigned port = (unsigned)atoi(opt->value);
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_LOCAL_PORT(port),
                                 TSIP_STACK_SET_NULL());
            break;
        }
        case opt_opid: {
            break;
        }
        case opt_password: {
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_PASSWORD(opt->value),
                                 TSIP_STACK_SET_NULL());
            break;
        }
        case opt_pcscf_ip: {
            pcscf_changed = tsk_true;
            tsk_strupdate(&ctx->network.proxy_cscf, opt->value);
            break;
        }
        case opt_pcscf_port: {
            pcscf_changed = tsk_true;
            ctx->network.proxy_cscf_port = atoi(opt->value);
            break;
        }
        case opt_pcscf_trans: {
            pcscf_changed = tsk_true;
            tsk_strupdate(&ctx->network.proxy_cscf_trans, opt->value);
            break;
        }
        case opt_realm: {
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_REALM(opt->value),
                                 TSIP_STACK_SET_NULL());
            break;
        }

        case opt_sigcomp_id: {
            /* add compartment */
            ret = tsip_stack_set(ctx->stack,
                                 TSIP_STACK_SET_SIGCOMP_NEW_COMPARTMENT(opt->value),
                                 TSIP_STACK_SET_NULL());
            break;
        }

        case opt_stun_ip:
        case opt_stun_pwd:
        case opt_stun_port:
        case opt_stun_usr: {
            if(!stun_done) {
                const opt_t* _opt;
                const char* ip = tsk_null, *usr = tsk_null, *pwd = tsk_null;
                unsigned port = 0;

                if((_opt = opt_get_by_type(opts, opt_stun_ip))) {
                    ip = _opt->value;
                }
                if((_opt = opt_get_by_type(opts, opt_stun_port))) {
                    port = atoi(_opt->value);
                }
                if((_opt = opt_get_by_type(opts, opt_stun_usr))) {
                    usr = _opt->value;
                }
                if((_opt = opt_get_by_type(opts, opt_stun_pwd))) {
                    pwd = _opt->value;
                }

                if(ip && port) {
                    tsip_stack_set(ctx->stack,
                                   TSIP_STACK_SET_STUN_SERVER(ip, port),
                                   TSIP_STACK_SET_NULL());
                }
                if(usr) {
                    tsip_stack_set(ctx->stack,
                                   TSIP_STACK_SET_STUN_CRED(usr, pwd),
                                   TSIP_STACK_SET_NULL());
                }

                stun_done = tsk_true;
            }
            break;
        }

        }/* switch */

    } /* foreach */

    /* whether Proxy-CSCF config has changed */
    if(pcscf_changed) {
        ret = tsip_stack_set(ctx->stack,
                             TSIP_STACK_SET_PROXY_CSCF(ctx->network.proxy_cscf, ctx->network.proxy_cscf_port, ctx->network.proxy_cscf_trans, ctx->network.ipv6 ? "ipv6" : "ipv4"),
                             TSIP_STACK_SET_NULL());
    }

    return ret;
}

int stack_run(const opts_L_t* opts)
{
    if(!ctx->stack) {
        TSK_DEBUG_ERROR("Stack is Null.");
        return -1;
    }
    else {
        return tsip_stack_start(ctx->stack);
    }
}

/*	==================================================================
	========================== Session =================================
*/

/* Find SIP session by id */
int pred_find_session_by_id(const tsk_list_item_t *item, const void* id)
{
    const session_t* session;
    if(item && item->data) {
        session = item->data;
        return (int)(tsip_ssession_get_id(session->handle)
                     - *((tsip_ssession_id_t*)id));
    }
    return -1;
}

session_t* session_create(session_type_t type, tsip_ssession_handle_t* handle)
{
    session_t* session = tsk_object_new(session_def_t, type, handle);
    if(!session) {
        TSK_DEBUG_ERROR("Failed to create new SIP session");
        return tsk_null;
    }

    switch(type) {
    case st_invite: {
        /* Enable all features (QoS, Session timers, SigComp, ...) */
        tsip_ssession_set(session->handle,
                          TSIP_SSESSION_SET_USERDATA(session),
                          /*=== MEDIA */
                          TSIP_SSESSION_SET_MEDIA(
                              // 100rel
                              TSIP_MSESSION_SET_100rel(tsk_false),
                              // Session timers
                              TSIP_MSESSION_SET_TIMERS(3600, "uac"),
                              // QoS
                              TSIP_MSESSION_SET_QOS(tmedia_qos_stype_segmented, tmedia_qos_strength_optional),
                              // close media params
                              TSIP_MSESSION_SET_NULL()
                          ),

                          TSIP_SSESSION_SET_NULL());
        break;
    }
    default:
        break;
    }
    return session;
}

const session_t* session_get_by_sid(const sessions_L_t* sessions, tsip_ssession_id_t sid)
{
    const tsk_list_item_t* item;
    if((item = tsk_list_find_item_by_pred(sessions, pred_find_session_by_id, &sid))) {
        return item->data;
    }
    else {
        return tsk_null;
    }
}


int session_tostring(const session_t* session)
{
    //char* temp = tsk_null;
    printf("== Session: ");
    if(session) {
        /* Session Id */
        printf("sid=%llu", tsip_ssession_get_id(session->handle));
        /* Type */
        printf(" type=");
        switch(session->type) {
        case st_invite:
            printf("INVITE");
            break;
        case st_message:
            printf("MESSAGE");
            break;
        case st_publish:
            printf("PUBLISH");
            break;
        case st_register:
            printf("REGISTER");
            break;
        case st_subscribe:
            printf("SUBSCRIBE");
            break;
        default:
            printf("(null)");
            break;
        }
        /* From */
        printf(" from=%s", session->from ? session->from : ctx->identity.impu);
        /* From */
        printf(" to=%s", session->to ? session->to : ctx->identity.impu);
    }
    else {
        printf("(invalid)");
    }
    printf("\n");
    return -1;
}


/* handle events -common to all sessions */
int session_handle_event(const tsip_event_t *_event)
{
    const session_t* session;

    /* Find associated session */
    if(!(session = session_get_by_sid(ctx->sessions, tsip_ssession_get_id(_event->ss)))) {
        /* Silentky ignore */
        return 0;
    }
    switch(_event->code) {
        /* === 7xx ==> errors ===  */
    case tsip_event_code_dialog_transport_error:
    case tsip_event_code_dialog_global_error:
    case tsip_event_code_dialog_message_error:
        /* do not guess that the dialog is terminated, wait for "tsip_event_code_dialog_terminated" event */
        break;

        /* === 8xx ==> success ===  */
    case tsip_event_code_dialog_request_incoming:
    case tsip_event_code_dialog_request_cancelled:
    case tsip_event_code_dialog_request_sent:
        break;

        /* === 9xx ==> Informational ===  */
    case tsip_event_code_dialog_terminated: {
        /* we no longer need the session
        * -> remove and destroy the session */
        TSK_DEBUG_INFO("Dialog Terminated --> %s", _event->phrase);
        tsk_list_remove_item_by_data(ctx->sessions, session);
        break;
    }

    case tsip_event_code_dialog_connected:
        ((session_t*)session)->connected = tsk_true;
        break;
    case tsip_event_code_dialog_terminating:
        break;
    }
    return 0;
}

/* handle commands -common to all sessions */
const session_t*  session_handle_cmd(cmd_type_t cmd, const opts_L_t* opts)
{
    const session_t* session = tsk_null;
    const opt_t* opt;
    const tsk_list_item_t* item;
    tsk_param_t* param;
    int ret = 0;

    /* Check if there is a session with is Id */
    if((opt = opt_get_by_type(opts, opt_sid))) {
        tsip_ssession_id_t sid = atoi(opt->value);
        session = session_get_by_sid(ctx->sessions, sid);
    }

#define TYPE_FROM_CMD(_CMD) \
	((_CMD==cmd_audio || _CMD==cmd_video || _CMD==cmd_audiovideo || _CMD==cmd_file || _CMD==cmd_large_message) ? st_invite :  \
	((_CMD==cmd_message || _CMD==cmd_sms) ? st_message : \
	(_CMD==cmd_options ? st_options : \
	(_CMD==cmd_publish ? st_publish : \
	(_CMD==cmd_register ? st_register : \
	(_CMD==cmd_subscribe ? st_subscribe : st_none))))))

    /* === Command === */
    switch(cmd) {
    case cmd_audio:
    case cmd_video:
    case cmd_audiovideo:
    case cmd_file:
    case cmd_large_message:
    case cmd_message:
    case cmd_sms:
    case cmd_options:
    case cmd_publish:
    case cmd_register:
    case cmd_subscribe: {
        if(!session) { /* Create "client-side-session" */
            session_t* _session;
            if((_session = session_client_create(TYPE_FROM_CMD(cmd))) && (session = _session)) {
                tsk_list_push_back_data(ctx->sessions, (void**)&_session);
            }
        }
        break;
    }
    default: {
        if(session) {
            /* hold, resume, refer, update, ...all in-dialog commands */
            break;
        }
        else {
            TSK_DEBUG_WARN("Session handling: Cannot handle this command [%d]", cmd);
            goto bail;
        }
    }
    } /* switch */

    if(!session) {
        TSK_DEBUG_ERROR("SIP Session is Null");
        goto bail;
    }

    /* === User Options === */
    tsk_list_foreach(item, opts) {
        opt = item->data;

        /* Session-level option? */
        if(opt->lv != lv_none && opt->lv != lv_session) {
            continue;
        }

        switch(opt->type) {
        case opt_caps: {
            if(!tsk_strnullORempty(opt->value)) {
                if((param = tsk_params_parse_param(opt->value, tsk_strlen(opt->value)))) {
                    ret = tsip_ssession_set(session->handle,
                                            TSIP_SSESSION_SET_CAPS(param->name, param->value),
                                            TSIP_SSESSION_SET_NULL());
                    TSK_OBJECT_SAFE_FREE(param);
                }
            }
            break;
        }
        case opt_expires: {
            if(!tsk_strnullORempty(opt->value)) {
                unsigned expires = atoi(opt->value);
                ret = tsip_ssession_set(session->handle,
                                        TSIP_SSESSION_SET_EXPIRES(expires),
                                        TSIP_SSESSION_SET_NULL());
            }
            break;
        }
        case opt_from: {
            /* You should use  TSIP_SSESSION_SET_OPTION(TSIP_SSESSION_OPTION_FROM, value)
            	instead of TSIP_SSESSION_SET_HEADER() to set the destination URI. */
            break;
        }
        case opt_header: {
            if((param = tsk_params_parse_param(opt->value, tsk_strlen(opt->value)))) {
                ret = tsip_ssession_set(session->handle,
                                        TSIP_SSESSION_SET_HEADER(param->name, param->value),
                                        TSIP_SSESSION_SET_NULL());
                TSK_OBJECT_SAFE_FREE(param);
            }
            break;
        }
        case opt_payload: {
            /* Will be handled by the caller */
            break;
        }
        case opt_silent: {
            /* valueless option */
            ret = tsip_ssession_set(session->handle,
                                    TSIP_SSESSION_SET_SILENT_HANGUP(tsk_true),
                                    TSIP_SSESSION_SET_NULL());
            break;
        }
        case opt_sigcomp_id: {
            /* sigcomp-id */
            ret = tsip_ssession_set(session->handle,
                                    TSIP_SSESSION_SET_SIGCOMP_COMPARTMENT(opt->value),
                                    TSIP_SSESSION_SET_NULL());
            break;
        }
        case opt_to: {
            /* You should use  TSIP_SSESSION_SET_OPTION(TSIP_SSESSION_OPTION_TO, value)
            	instead of TSIP_SSESSION_SET_HEADER() to set the destination URI. */
            if((cmd != cmd_sms) && (cmd != cmd_ect) && !tsk_strnullORempty(opt->value)) { /* SMS will use SMSC Address as Request URI */
                ret = tsip_ssession_set(session->handle,
                                        TSIP_SSESSION_SET_TO(opt->value),
                                        TSIP_SSESSION_SET_NULL());
            }
            break;
        }
        default: {
            /* will be handled by the caller */
            break;
        }
        }

    } /* foreach */

bail:
    return session;
}

int session_hangup(tsip_ssession_id_t sid)
{
    const session_t* session;
    if((session = session_get_by_sid(ctx->sessions, sid))) {
        switch(session->type) {
        case st_invite:
            tsip_api_invite_send_bye(session->handle,
                                     /* You can add your parameters */
                                     TSIP_ACTION_SET_NULL());
            break;
        case st_message:
            break;
        case st_publish:
            tsip_api_publish_send_unpublish(session->handle,
                                            /* You can add your parameters */
                                            TSIP_ACTION_SET_NULL());
            break;
        case st_register:
            tsip_api_register_send_unregister(session->handle,
                                              /* You can add your parameters */
                                              TSIP_ACTION_SET_NULL());
            break;
        case st_subscribe:
            tsip_api_subscribe_send_unsubscribe(session->handle,
                                                /* You can add your parameters */
                                                TSIP_ACTION_SET_NULL());
            break;
        default:
            TSK_DEBUG_WARN("Cannot hangup session with this type [%d]", session->type);
            return -2;
        }
        return 0;
    }
    else {
        TSK_DEBUG_WARN("Failed to find session with sid=%llu", sid);
        return -1;
    }
}

static tsk_object_t* session_ctor(tsk_object_t * self, va_list * app)
{
    session_t *session = self;
    if(session) {
        session->type = va_arg(*app, session_type_t);
        if((session->handle = va_arg(*app, tsip_ssession_handle_t*))) {
            int ret;
            /* "server-side-session" */
            if((ret = tsip_ssession_take_ownership(session->handle))) {
                TSK_DEBUG_ERROR("Failed to take ownership [%d]", ret);
            }
        }
        else {
            /* "client-side-session" */
            session->handle = tsip_ssession_create(ctx->stack,
                                                   TSIP_SSESSION_SET_NULL());
        }
    }
    return self;
}

static tsk_object_t* session_dtor(tsk_object_t * self)
{
    session_t *session = self;
    if(session) {
        TSK_OBJECT_SAFE_FREE(session->handle);

        TSK_FREE(session->to);
        TSK_FREE(session->from);
    }

    return self;
}

static int session_cmp(const tsk_object_t *_ss1, const tsk_object_t *_ss2)
{
    const session_t *ss1 = _ss1;
    const session_t *ss2 = _ss2;

    if(ss1 && ss1) {
        if(ss1->handle && ss2->handle) {
            return tsk_object_cmp(ss1->handle, ss2->handle);
        }
        else {
            return (ss2 - ss1);
        }
    }
    else if(!ss1 && !ss2) {
        return 0;
    }
    else {
        return -1;
    }
}

static const tsk_object_def_t session_def_s = {
    sizeof(session_t),
    session_ctor,
    session_dtor,
    session_cmp,
};
const tsk_object_def_t *session_def_t = &session_def_s;



tsip_action_handle_t* action_get_config(const opts_L_t* opts)
{
    const opt_t* opt;
    const tsk_list_item_t* item;
    tsip_action_handle_t* action_config = tsk_null;
    tsk_param_t* param;

    if(TSK_LIST_IS_EMPTY(opts)) {
        return tsk_null;
    }

    tsk_list_foreach(item, opts) {
        opt = item->data;

        /* action level? */
        if(opt->lv != lv_action) {
            continue;
        }

        /* create new action */
        if(!action_config && !(action_config = tsip_action_create(tsip_atype_config,
                                               TSIP_ACTION_SET_NULL()))) {
            break;
        }

        switch(opt->type) {
        case opt_header: {
            if((param = tsk_params_parse_param(opt->value, tsk_strlen(opt->value)))) {
                tsip_action_set(action_config,
                                TSIP_ACTION_SET_HEADER(param->name, param->value),
                                TSIP_ACTION_SET_NULL());
                TSK_OBJECT_SAFE_FREE(param);
            }
            break;
        }
        case opt_payload: {
            tsip_action_set(action_config,
                            TSIP_ACTION_SET_PAYLOAD(opt->value, tsk_strlen(opt->value)),
                            TSIP_ACTION_SET_NULL());
            break;
        }
        default: {
            break;
        }
        }
    }

    return action_config;
}