nua_stack.h 16.6 KB
Newer Older
Pekka Pessi's avatar
Pekka Pessi committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/*
 * This file is part of the Sofia-SIP package
 *
 * Copyright (C) 2005 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
 *
 */

25 26
#ifndef NUA_STACK_H
/** Defined when <nua_stack.h> has been included. */
27
#define NUA_STACK_H
Pekka Pessi's avatar
Pekka Pessi committed
28
/**@IFILE nua_stack.h 
29
 * @brief Sofia-SIP User Agent Engine - internal stack interface
Pekka Pessi's avatar
Pekka Pessi committed
30 31 32 33 34 35 36
 *
 * @author Pekka Pessi <Pekka.Pessi@nokia.com>
 * @author Kai Vehmanen <Kai.Vehmanen@nokia.com>
 *
 * @date Created: Wed Feb 14 17:09:44 2001 ppessi
 */

37 38 39 40
#ifndef SU_CONFIG_H
#include <su_config.h>
#endif

Pekka Pessi's avatar
Pekka Pessi committed
41 42 43 44
#if HAVE_UICC_H
#include <uicc.h>
#endif

45
#if SU_HAVE_PTHREADS
Pekka Pessi's avatar
Pekka Pessi committed
46 47 48
#include <pthread.h>
#endif

49
#ifndef SOA_H
50
#include "sofia-sip/soa.h"
51 52
#endif
#ifndef NTA_H
53
#include <sofia-sip/nta.h>
54 55
#endif
#ifndef AUTH_CLIENT_H
56
#include <sofia-sip/auth_client.h>
57 58
#endif
#ifndef NEA_H
59
#include <sofia-sip/nea.h>
60 61
#endif
#ifndef NUA_H
62
#include <sofia-sip/nua.h>
Pekka Pessi's avatar
Pekka Pessi committed
63 64
#endif

65
#define SU_LOG (nua_log)
66
#include <sofia-sip/su_debug.h>
Pekka Pessi's avatar
Pekka Pessi committed
67

68 69 70 71 72
#ifndef NUA_DIALOG_H
#define NUA_OWNER_T struct nua_handle_s
#include <nua_dialog.h>
#endif

73 74 75 76 77
SOFIA_BEGIN_DECLS

#if HAVE_SIGCOMP
#include <sigcomp.h>
#endif
Martti Mela's avatar
Martti Mela committed
78

79 80 81 82
#ifndef NUA_PARAMS_H
#include <nua_params.h>
#endif

Pekka Pessi's avatar
Pekka Pessi committed
83 84 85 86 87 88 89 90 91 92 93 94 95 96
typedef struct event_s event_t;

#define       NONE ((void *)-1)

enum nh_kind {
  nh_has_nothing,
  nh_has_invite,
  nh_has_subscribe,
  nh_has_notify,
  nh_has_register,
  nh_has_streaming
};

typedef struct nua_client_request nua_client_request_t; 
Pekka Pessi's avatar
Pekka Pessi committed
97
typedef struct nua_server_request nua_server_request_t; 
Pekka Pessi's avatar
Pekka Pessi committed
98

99
typedef void nua_creq_restart_f(nua_handle_t *, tagi_t *tags);
Pekka Pessi's avatar
Pekka Pessi committed
100

101
typedef struct register_usage nua_registration_t;
102

Pekka Pessi's avatar
Pekka Pessi committed
103 104 105
struct nua_client_request
{
  nua_event_t         cr_event;		/**< Request event */
106
  nua_creq_restart_f *cr_restart;
Pekka Pessi's avatar
Pekka Pessi committed
107 108 109 110
  nta_outgoing_t     *cr_orq;
  msg_t              *cr_msg;
  nua_dialog_usage_t *cr_usage;
  unsigned short      cr_retry_count;   /**< Retry count for this request */
Pekka Pessi's avatar
Pekka Pessi committed
111

112 113 114
  unsigned short      cr_answer_recv;   /**< Recv answer in response 
					 *  with this status.
					 */
Pekka Pessi's avatar
Pekka Pessi committed
115 116 117 118
  unsigned            cr_offer_sent:1;  /**< Sent offer in this request */

  unsigned            cr_offer_recv:1;  /**< Recv offer in a response */
  unsigned            cr_answer_sent:1; /**< Sent answer in (PR)ACK */
Pekka Pessi's avatar
Pekka Pessi committed
119 120 121 122 123 124 125
};

typedef struct nua_session_state
{
  /** Session-related state */
  unsigned        ss_active:1;		/**< Session is currently active. */
  
126 127
  /* enum nua_callstate */
  unsigned        ss_state:4;		/**< Session status (enum nua_callstate) */
Pekka Pessi's avatar
Pekka Pessi committed
128
  
129
  unsigned        ss_100rel:1;	        /**< Use 100rel, send 183 */
Pekka Pessi's avatar
Pekka Pessi committed
130 131 132 133 134 135 136
  unsigned        ss_alerting:1;	/**< 180 is sent/received */
  
  unsigned        ss_update_needed:2;	/**< Send an UPDATE (do O/A if > 1) */

  unsigned        ss_precondition:1;	/**< Precondition required */

  unsigned        ss_hold_remote:1;	/**< We are holding remote */
137 138

  unsigned        ss_timer_set:1;       /**< We have active session timer. */
Pekka Pessi's avatar
Pekka Pessi committed
139 140 141 142 143 144
  unsigned        : 0;
  
  unsigned        ss_session_timer;	/**< Value of Session-Expires (delta) */
  unsigned        ss_min_se;		/**< Minimum session expires */
  enum nua_session_refresher ss_refresher; /**< none, local or remote */

145 146 147 148
  char const     *ss_ack_needed;	/**< Send an ACK
					 * (do O/A, if "offer" or "answer")
					 */

Pekka Pessi's avatar
Pekka Pessi committed
149 150 151 152 153 154
  nua_dialog_usage_t *ss_usage;

  /* Outgoing invite */
  struct nua_client_request ss_crequest[1];

  /* Incoming invite */
Pekka Pessi's avatar
Pekka Pessi committed
155
  struct nua_server_request {
Pekka Pessi's avatar
Pekka Pessi committed
156 157 158 159 160 161

  /** Respond to an incoming INVITE transaction.
   *
   * When the application responds to an incoming INVITE transaction with
   * nua_respond(), the ss_respond_to_invite() is called (if non-NULL).
   */
Pekka Pessi's avatar
Pekka Pessi committed
162 163 164 165
    void (*sr_respond)(nua_t *nua, nua_handle_t *nh,
		       int status, char const *phrase, 
		       tagi_t const *tags);
    nta_incoming_t *sr_irq;
166
    msg_t *sr_msg;		/**< Request message */
Pekka Pessi's avatar
Pekka Pessi committed
167 168 169

    unsigned sr_offer_recv:1;	/**< We have received an offer */
    unsigned sr_answer_sent:2;	/**< We have answered (reliably, if >1) */
Pekka Pessi's avatar
Pekka Pessi committed
170

Pekka Pessi's avatar
Pekka Pessi committed
171 172 173
    unsigned sr_offer_sent:1;	/**< We have offered SDP */
    unsigned sr_answer_recv:1;	/**< We have received SDP answer */
  } ss_srequest[1];
Pekka Pessi's avatar
Pekka Pessi committed
174 175
} nua_session_state_t;

Pekka Pessi's avatar
Pekka Pessi committed
176 177 178
#define \
  NH_ACTIVE_MEDIA_TAGS(include, soa)					\
  TAG_IF((include) && (soa) && soa_is_audio_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
179
	 SOATAG_ACTIVE_AUDIO(soa_is_audio_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
180
  TAG_IF((include) && (soa) && soa_is_video_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
181
	 SOATAG_ACTIVE_VIDEO(soa_is_video_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
182
  TAG_IF((include) && (soa) && soa_is_image_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
183
	 SOATAG_ACTIVE_IMAGE(soa_is_image_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
184
  TAG_IF((include) && (soa) && soa_is_chat_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
185
	 SOATAG_ACTIVE_CHAT(soa_is_chat_active(soa)))
Pekka Pessi's avatar
Pekka Pessi committed
186 187 188 189

#define \
  NH_REMOTE_MEDIA_TAGS(include, soa)					\
  TAG_IF((include) && (soa) && soa_is_remote_audio_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
190
	 SOATAG_ACTIVE_AUDIO(soa_is_remote_audio_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
191
  TAG_IF((include) && (soa) && soa_is_remote_video_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
192
	 SOATAG_ACTIVE_VIDEO(soa_is_remote_video_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
193
  TAG_IF((include) && (soa) && soa_is_remote_image_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
194
	 SOATAG_ACTIVE_IMAGE(soa_is_remote_image_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
195
  TAG_IF((include) && (soa) && soa_is_remote_chat_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
196
	 SOATAG_ACTIVE_CHAT(soa_is_remote_chat_active(soa)))
Pekka Pessi's avatar
Pekka Pessi committed
197

Pekka Pessi's avatar
Pekka Pessi committed
198 199 200 201 202 203 204 205 206 207 208 209 210 211 212
/** NUA handle. 
 *
 */
struct nua_handle_s 
{
  su_home_t       nh_home[1];	/**< Memory home  */
  nua_handle_t   *nh_next;
  nua_handle_t  **nh_prev;

  nua_t        	 *nh_nua;	/**< Pointer to NUA object  */
  void           *nh_valid;
  nua_hmagic_t 	 *nh_magic;	/**< Application context */

  tagi_t         *nh_tags;	/**< Default tags */

213 214
  nua_handle_t   *nh_identity;	/**< Identity */

Pekka Pessi's avatar
Pekka Pessi committed
215
#if HAVE_PTHREAD_H
Martti Mela's avatar
Martti Mela committed
216 217 218 219
#if __CYGWIN__
  pthread_mutex_t  sup_reflock[1];
  int              sup_ref;
#else
Pekka Pessi's avatar
Pekka Pessi committed
220
  pthread_rwlock_t nh_refcount[1];  
Martti Mela's avatar
Martti Mela committed
221
#endif
Pekka Pessi's avatar
Pekka Pessi committed
222 223 224 225
#else
  unsigned        nh_refcount;
#endif

226 227
  nua_handle_preferences_t *nh_prefs; /**< Preferences */

Pekka Pessi's avatar
Pekka Pessi committed
228
  /* Handle state */
229 230
  nua_event_t     nh_special;	/**< Special event */

Pekka Pessi's avatar
Pekka Pessi committed
231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247
  unsigned        nh_ref_by_stack:1;	/**< Has stack used the handle? */
  unsigned        nh_ref_by_user:1;	/**< Has user used the handle? */
  unsigned        nh_init:1;

  unsigned        nh_has_invite:1;     /**< Has call */
  unsigned        nh_has_subscribe:1;  /**< Has watcher */
  unsigned        nh_has_notify:1;     /**< Has notifier */
  unsigned        nh_has_register:1;   /**< Has registration */
  unsigned        nh_has_streaming:1;  /**< Has RTSP-related session */

  struct nua_client_request nh_cr[1];

  nua_dialog_state_t nh_ds[1];
  nua_session_state_t nh_ss[1];

  auth_client_t  *nh_auth;	/**< Authorization objects */

Pekka Pessi's avatar
Pekka Pessi committed
248
  soa_session_t  *nh_soa;	/**< Media session */
Pekka Pessi's avatar
Pekka Pessi committed
249 250

  struct nua_referral {
251
    nua_handle_t  *ref_handle;	/**< Referring handle */
Pekka Pessi's avatar
Pekka Pessi committed
252 253 254 255 256 257 258 259 260 261 262 263 264
    sip_event_t   *ref_event;	/**< Event used with NOTIFY */
  } nh_referral[1];

  nea_server_t   *nh_notifier;	/**< SIP notifier */
};

#define NH_IS_VALID(nh) ((nh) && (nh)->nh_valid)

#define NH_STATUS(nh) \
  (nh)->nh_status, \
  (nh)->nh_phrase, \
  SIPTAG_WARNING_STR(nh->nh_warning)

265 266
#define NH_IS_DEFAULT(nh) ((nh) == (nh)->nh_nua->nua_handles)

267 268 269 270 271 272 273 274 275 276 277 278 279 280 281
static inline
int nh_is_special(nua_handle_t *nh)
{
  return nh == NULL || nh->nh_special;
}

static inline
int nh_has_session(nua_handle_t const *nh)
{
  return nh != NULL && 
    nh->nh_ss->ss_state > nua_callstate_init &&
    nh->nh_ss->ss_state < nua_callstate_terminated;
}


282
extern char const nua_internal_error[];
Pekka Pessi's avatar
Pekka Pessi committed
283

284
#define NUA_INTERNAL_ERROR 900, nua_internal_error
Pekka Pessi's avatar
Pekka Pessi committed
285 286 287 288 289 290 291 292

struct nua_s {
  su_home_t            nua_home[1];

  /* API (client) side */
  su_root_t    	      *nua_api_root;
  su_clone_r   	       nua_clone;
  su_task_r            nua_client;
293 294 295

  su_network_changed_t *nua_nw_changed;

Pekka Pessi's avatar
Pekka Pessi committed
296 297 298
  nua_callback_f       nua_callback;
  nua_magic_t         *nua_magic;

Pekka Pessi's avatar
Pekka Pessi committed
299
  nua_saved_event_t    nua_current[1];
300
  nua_saved_event_t    nua_signal[1];
Pekka Pessi's avatar
Pekka Pessi committed
301

302 303 304 305 306
  /* Engine state flags */
  unsigned             nua_shutdown_started:1; /**< Shutdown initiated */
  unsigned             nua_shutdown_final:1; /**< Shutdown is complete */
  unsigned :0;
  
Pekka Pessi's avatar
Pekka Pessi committed
307 308 309
  /**< Used by stop-and-wait args calls */
  tagi_t const        *nua_args;

310 311
  /**< Local SIP address. Contents are kept around for ever. */
  sip_from_t          nua_from[1];
Pekka Pessi's avatar
Pekka Pessi committed
312 313

  /* Protocol (server) side */
314 315 316

  nua_registration_t *nua_registrations; /**< Active registrations */

317
  /* Constants */
Pekka Pessi's avatar
Pekka Pessi committed
318
  sip_accept_t       *nua_invite_accept; /* What we accept for invite */
319

Pekka Pessi's avatar
Pekka Pessi committed
320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337
  url_t        	     *nua_registrar;

  su_root_t          *nua_root;
  su_task_r           nua_server;
  nta_agent_t        *nua_nta;
  su_timer_t         *nua_timer;

#if HAVE_UICC_H
  uicc_t             *nua_uicc;
#endif

  void         	      *nua_sip_parser;

  sip_time_t           nua_shutdown;

  /* Route */
  sip_service_route_t *nua_service_route;

338
  /* User-agent parameters */
Pekka Pessi's avatar
Pekka Pessi committed
339 340 341 342 343 344 345 346 347 348 349 350
  unsigned             nua_media_enable:1;

  unsigned     	       :0;

#if HAVE_SMIME		/* Start NRC Boston */
  sm_object_t          *sm;
#endif                  /* End NRC Boston */

  nua_handle_t        *nua_handles;
  nua_handle_t       **nua_handles_tail;
};

351
#define nua_dhandle    nua_handles
Pekka Pessi's avatar
Pekka Pessi committed
352 353 354 355 356 357 358

#if HAVE_FUNC
#define enter (void)SU_DEBUG_9(("nua: %s: entering\n", __func__))
#define nh_enter (void)SU_DEBUG_9(("nua %s(%p): entering\n", __func__, nh))
#elif HAVE_FUNCTION
#define enter (void)SU_DEBUG_9(("nua: %s: entering\n", __FUNCTION__))
#define nh_enter (void)SU_DEBUG_9(("nua %s(%p): entering\n", __FUNCTION__, nh))
Pekka Pessi's avatar
Pekka Pessi committed
359
#define __func__ __FUNCTION__
Pekka Pessi's avatar
Pekka Pessi committed
360 361 362
#else
#define enter ((void)0)
#define nh_enter ((void)0)
Pekka Pessi's avatar
Pekka Pessi committed
363
#define __func__ "nua"
Pekka Pessi's avatar
Pekka Pessi committed
364 365 366
#endif

/* Internal prototypes */
367 368 369 370
int  nua_stack_init(su_root_t *root, nua_t *nua);
void nua_stack_deinit(su_root_t *root, nua_t *nua);
void nua_stack_signal(nua_t *nua, su_msg_r msg, event_t *e);

Pekka Pessi's avatar
Pekka Pessi committed
371 372 373
int nua_stack_init_transport(nua_t *nua, tagi_t const *tags);

int nua_stack_init_registrations(nua_t *nua);
374

375 376 377 378
nua_registration_t *nua_registration_by_aor(nua_registration_t const *list,
					    sip_from_t const *aor,
					    url_t const *remote_uri,
					    int only_default);
379

380 381 382
sip_contact_t const *nua_registration_contact(nua_registration_t const *nr);

int nua_registration_process_request(nua_registration_t *nr,
383 384
				     nta_incoming_t *irq,
				     sip_t const *sip);
385

386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414
void nua_stack_post_signal(nua_handle_t *nh, nua_event_t event, 
			   tag_type_t tag, tag_value_t value, ...);

typedef int nua_stack_signal_handler(nua_t *, 
				     nua_handle_t *, 
				     nua_event_t, 
				     tagi_t const *);

nua_stack_signal_handler 
  nua_stack_set_params, nua_stack_get_params,
  nua_stack_register, 
  nua_stack_invite, nua_stack_ack, nua_stack_cancel, 
  nua_stack_bye, nua_stack_info, nua_stack_update, 
  nua_stack_options, nua_stack_publish, nua_stack_message, 
  nua_stack_subscribe, nua_stack_notify, nua_stack_refer,
  nua_stack_method;

#define UA_EVENT1(e, statusphrase) \
  nua_stack_event(nua, nh, NULL, e, statusphrase, TAG_END())

#define UA_EVENT2(e, status, phrase)			\
  nua_stack_event(nua, nh, NULL, e, status, phrase, TAG_END())

#define UA_EVENT3(e, status, phrase, tag)			\
  nua_stack_event(nua, nh, NULL, e, status, phrase, tag, TAG_END())

int nua_stack_event(nua_t *nua, nua_handle_t *nh, msg_t *msg,
		    nua_event_t event, int status, char const *phrase,
		    tag_type_t tag, tag_value_t value, ...);
Pekka Pessi's avatar
Pekka Pessi committed
415 416 417 418

nua_handle_t *nh_create_handle(nua_t *nua, nua_hmagic_t *hmagic,
			       tagi_t *tags);

419 420 421 422 423 424 425 426 427 428
nua_handle_t *nua_stack_incoming_handle(nua_t *nua, 
					nta_incoming_t *irq,
					sip_t const *sip,
					enum nh_kind kind,
					int create_dialog);

void nh_destroy(nua_t *nua, nua_handle_t *nh);

nua_handle_t *nh_validate(nua_t *nua, nua_handle_t *maybe);

429 430
int nua_stack_set_defaults(nua_handle_t *nh, nua_handle_preferences_t *nhp);

Pekka Pessi's avatar
Pekka Pessi committed
431
int nua_stack_set_from(nua_t *, int initial, tagi_t const *tags);
432 433 434

int nua_stack_init_instance(nua_handle_t *nh, tagi_t const *tags);

435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
int nua_stack_init_handle(nua_t *nua, nua_handle_t *nh, 
			  enum nh_kind kind,
			  char const *default_allow,
			  tag_type_t tag, tag_value_t value, ...);

int nua_stack_process_request(nua_handle_t *nh,
			      nta_leg_t *leg,
			      nta_incoming_t *irq,
			      sip_t const *sip);

int nua_stack_process_response(nua_handle_t *nh,
			       struct nua_client_request *cr,
			       nta_outgoing_t *orq,
			       sip_t const *sip,
			       tag_type_t tag, tag_value_t value, ...);

451 452
int nua_stack_launch_network_change_detector(nua_t *nua);

453 454 455 456 457 458 459 460 461 462 463 464
msg_t *nua_creq_msg(nua_t *nua, nua_handle_t *nh,
		    struct nua_client_request *cr,
		    int restart, 
		    sip_method_t method, char const *name,
		    tag_type_t tag, tag_value_t value, ...);

int nua_creq_check_restart(nua_handle_t *nh,
			   struct nua_client_request *cr,
			   nta_outgoing_t *orq,
			   sip_t const *sip,
			   nua_creq_restart_f *f);

465 466 467 468 469 470 471
int nua_creq_restart_with(nua_handle_t *nh,
			  struct nua_client_request *cr,
			  nta_outgoing_t *orq,
			  int status, char const *phrase,
			  nua_creq_restart_f *f, 
			  tag_type_t tag, tag_value_t value, ...);

472 473 474 475 476 477
int nua_creq_save_restart(nua_handle_t *nh,
			  struct nua_client_request *cr,
			  nta_outgoing_t *orq,
			  int status, char const *phrase,
			  nua_creq_restart_f *f);

478 479 480 481 482 483 484
int nua_creq_restart(nua_handle_t *nh,
		     struct nua_client_request *cr,
		     nta_response_f *cb,
		     tagi_t *tags);

void nua_creq_deinit(struct nua_client_request *cr, nta_outgoing_t *orq);

485
sip_contact_t const *nua_stack_get_contact(nua_registration_t const *nr);
486

487 488 489 490 491 492 493 494 495 496 497
int nua_registration_add_contact_to_request(nua_handle_t *nh,
					    msg_t *msg, 
					    sip_t *sip,
					    int add_contact,
					    int add_service_route);

int nua_registration_add_contact_to_response(nua_handle_t *nh,
					     msg_t *msg,
					     sip_t *sip,
					     sip_record_route_t const *,
					     sip_contact_t const *remote);
498

499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516
msg_t *nh_make_response(nua_t *nua, nua_handle_t *nh, 
			nta_incoming_t *irq,
			int status, char const *phrase,
			tag_type_t tag, tag_value_t value, ...);


typedef int nua_stack_process_request_t(nua_t *nua,
					nua_handle_t *nh,
					nta_incoming_t *irq,
					sip_t const *sip);

nua_stack_process_request_t nua_stack_process_invite;
nua_stack_process_request_t nua_stack_process_info;
nua_stack_process_request_t nua_stack_process_update;
nua_stack_process_request_t nua_stack_process_bye;
nua_stack_process_request_t nua_stack_process_message;
nua_stack_process_request_t nua_stack_process_options;
nua_stack_process_request_t nua_stack_process_publish;
517
nua_stack_process_request_t nua_stack_process_subscribe;
518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550
nua_stack_process_request_t nua_stack_process_notify;
nua_stack_process_request_t nua_stack_process_refer;
nua_stack_process_request_t nua_stack_process_unknown;

#ifndef SDP_MIME_TYPE
#define SDP_MIME_TYPE nua_application_sdp
#endif

extern char const nua_application_sdp[];

/* ---------------------------------------------------------------------- */

#define SIP_METHOD_UNKNOWN sip_method_unknown, NULL

/* Private tags */
#define NUTAG_ADD_CONTACT(v) _nutag_add_contact, tag_bool_v(v)
extern tag_typedef_t _nutag_add_contact;

#define NUTAG_ADD_CONTACT_REF(v) _nutag_add_contact_ref, tag_bool_vr(&v)
extern tag_typedef_t _nutag_add_contact_ref;

#define NUTAG_COPY(v) _nutag_copy, tag_bool_v(v)
extern tag_typedef_t _nutag_copy;

#define NUTAG_COPY_REF(v) _nutag_copy_ref, tag_bool_vr(&v)
extern tag_typedef_t _nutag_copy_ref;

/* ---------------------------------------------------------------------- */

typedef unsigned longlong ull;

#define SET_STATUS(_status, _phrase) status = _status, phrase = _phrase

551 552
#define SET_STATUS2(_status, _phrase) status = _status, phrase = _phrase

553 554 555 556 557 558 559 560 561 562 563
/* This is an "interesting" macro:
 * x is a define expanding to <i>num, str</i>.
 * @a num is assigned to variable status, @a str to variable phrase.
 * Macro SET_STATUS1 expands to two comma-separated expressions that are
 * also usable as function arguments.
 */
#define SET_STATUS1(x) ((status = x), status), (phrase = ((void)x))

/* ---------------------------------------------------------------------- */
/* Application side prototypes */

Pekka Pessi's avatar
Pekka Pessi committed
564 565 566 567 568 569
void nua_signal(nua_t *nua, nua_handle_t *nh, msg_t *msg, int always,
		nua_event_t event, int status, char const *phrase,
		tag_type_t tag, tag_value_t value, ...);

void nua_event(nua_t *root_magic, su_msg_r sumsg, event_t *e);

570 571
SOFIA_END_DECLS

Pekka Pessi's avatar
Pekka Pessi committed
572
#endif /* NUA_STACK_H */