/* * This file is part of the Sofia-SIP package * * Copyright (C) 2006 Nokia Corporation. * * Contact: Pekka Pessi <pekka.pessi@nokia.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * *//**@CFILE nua_options.c * @brief Implementation of OPTIONS method * * @author Pekka Pessi <Pekka.Pessi@nokia.com> * * @date Created: Wed Mar  8 17:02:19 EET 2006 ppessi */#include "config.h"#include <stddef.h>#include <stdlib.h>#include <string.h>#include <limits.h>#include <assert.h>#include <sofia-sip/string0.h>#include <sofia-sip/sip_protos.h>#include <sofia-sip/sip_status.h>#define NTA_LEG_MAGIC_T      struct nua_handle_s#define NTA_OUTGOING_MAGIC_T struct nua_handle_s#include "nua_stack.h"/* ======================================================================== *//* OPTIONS */static int process_response_to_options(nua_handle_t *nh,				       nta_outgoing_t *orq,				       sip_t const *sip);intnua_stack_options(nua_t *nua, nua_handle_t *nh, nua_event_t e, tagi_t const *tags){  struct nua_client_request *cr = nh->nh_cr;  msg_t *msg;  if (nh_is_special(nh)) {    return UA_EVENT2(e, 900, "Invalid handle for OPTIONS");  }  else if (cr->cr_orq) {    return UA_EVENT2(e, 900, "Request already in progress");  }  nua_stack_init_handle(nua, nh, nh_has_nothing, NULL, TAG_NEXT(tags));  msg = nua_creq_msg(nua, nh, cr, cr->cr_retry_count,			 SIP_METHOD_OPTIONS, 			 TAG_NEXT(tags));  cr->cr_orq = nta_outgoing_mcreate(nua->nua_nta,				    process_response_to_options, nh, NULL,				    msg,				    SIPTAG_END(), TAG_NEXT(tags));  if (!cr->cr_orq) {    msg_destroy(msg);    return UA_EVENT1(e, NUA_INTERNAL_ERROR);  }  return cr->cr_event = e;}void restart_options(nua_handle_t *nh, tagi_t *tags){  nua_creq_restart(nh, nh->nh_cr, process_response_to_options, tags);}static int process_response_to_options(nua_handle_t *nh,				       nta_outgoing_t *orq,				       sip_t const *sip){  if (nua_creq_check_restart(nh, nh->nh_cr, orq, sip, restart_options))    return 0;  return nua_stack_process_response(nh, nh->nh_cr, orq, sip, TAG_END());}int nua_stack_process_options(nua_t *nua,			      nua_handle_t *nh,			      nta_incoming_t *irq,			      sip_t const *sip){  msg_t *msg;  int status; char const *phrase;  /* Hook to outbound */  status = nua_registration_process_request(nua->nua_registrations, irq, sip);  if (status)    return status;  SET_STATUS1(SIP_200_OK);  if (nh == NULL)    nh = nua->nua_dhandle;  msg = nh_make_response(nua, nh, irq, status, phrase,			 SIPTAG_ALLOW(NH_PGET(nh, allow)),			 SIPTAG_SUPPORTED(NH_PGET(nh, supported)),			 TAG_IF(NH_PGET(nh, path_enable),				SIPTAG_SUPPORTED_STR("path")),			 SIPTAG_ACCEPT_STR(SDP_MIME_TYPE),			 TAG_END());  if (msg) {    su_home_t home[1] = { SU_HOME_INIT(home) };#if 0				/* XXX */    sdp_session_t *sdp;    sip_t *sip = sip_object(msg);    if ((sdp = nmedia_describe(nua, nh->nh_nm, nh, home))) {      nh_sdp_insert(nh, home, msg, sip, sdp);    }#endif    nta_incoming_mreply(irq, msg);    su_home_deinit(home);  }  else    SET_STATUS1(SIP_500_INTERNAL_SERVER_ERROR);  msg = nta_incoming_getrequest(irq);  nua_stack_event(nh->nh_nua, nh, msg, nua_i_options, status, phrase, TAG_END());  return status;}