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 50 51
#ifndef SU_OS_NW_H
#include <sofia-sip/su_os_nw.h>
#endif
52
#ifndef SOA_H
53
#include "sofia-sip/soa.h"
54 55
#endif
#ifndef NTA_H
56
#include <sofia-sip/nta.h>
57 58
#endif
#ifndef AUTH_CLIENT_H
59
#include <sofia-sip/auth_client.h>
60 61
#endif
#ifndef NEA_H
62
#include <sofia-sip/nea.h>
63 64
#endif
#ifndef NUA_H
65
#include <sofia-sip/nua.h>
Pekka Pessi's avatar
Pekka Pessi committed
66 67
#endif

68
#define SU_LOG (nua_log)
69
#include <sofia-sip/su_debug.h>
Pekka Pessi's avatar
Pekka Pessi committed
70

71 72 73 74 75
#ifndef NUA_DIALOG_H
#define NUA_OWNER_T struct nua_handle_s
#include <nua_dialog.h>
#endif

76 77 78 79 80
SOFIA_BEGIN_DECLS

#if HAVE_SIGCOMP
#include <sigcomp.h>
#endif
Martti Mela's avatar
Martti Mela committed
81

82 83 84 85
#ifndef NUA_PARAMS_H
#include <nua_params.h>
#endif

Pekka Pessi's avatar
Pekka Pessi committed
86 87 88 89 90 91 92 93 94 95 96 97 98 99
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
100
typedef struct nua_server_request nua_server_request_t; 
Pekka Pessi's avatar
Pekka Pessi committed
101

102
typedef void nua_creq_restart_f(nua_handle_t *, tagi_t *tags);
Pekka Pessi's avatar
Pekka Pessi committed
103

104
typedef struct register_usage nua_registration_t;
105

Pekka Pessi's avatar
Pekka Pessi committed
106 107 108
struct nua_client_request
{
  nua_event_t         cr_event;		/**< Request event */
109
  nua_creq_restart_f *cr_restart;
Pekka Pessi's avatar
Pekka Pessi committed
110 111 112 113
  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
114

115 116 117
  unsigned short      cr_answer_recv;   /**< Recv answer in response 
					 *  with this status.
					 */
Pekka Pessi's avatar
Pekka Pessi committed
118 119 120 121
  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
122 123 124 125 126 127 128
};

typedef struct nua_session_state
{
  /** Session-related state */
  unsigned        ss_active:1;		/**< Session is currently active. */
  
129 130
  /* enum nua_callstate */
  unsigned        ss_state:4;		/**< Session status (enum nua_callstate) */
Pekka Pessi's avatar
Pekka Pessi committed
131
  
132
  unsigned        ss_100rel:1;	        /**< Use 100rel, send 183 */
Pekka Pessi's avatar
Pekka Pessi committed
133 134 135 136 137 138 139
  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 */
140 141

  unsigned        ss_timer_set:1;       /**< We have active session timer. */
Pekka Pessi's avatar
Pekka Pessi committed
142 143 144 145 146 147
  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 */

148 149 150 151
  char const     *ss_ack_needed;	/**< Send an ACK
					 * (do O/A, if "offer" or "answer")
					 */

Pekka Pessi's avatar
Pekka Pessi committed
152 153 154 155 156 157
  nua_dialog_usage_t *ss_usage;

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

  /* Incoming invite */
Pekka Pessi's avatar
Pekka Pessi committed
158
  struct nua_server_request {
Pekka Pessi's avatar
Pekka Pessi committed
159 160 161 162 163 164

  /** 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
165 166 167 168
    void (*sr_respond)(nua_t *nua, nua_handle_t *nh,
		       int status, char const *phrase, 
		       tagi_t const *tags);
    nta_incoming_t *sr_irq;
169
    msg_t *sr_msg;		/**< Request message */
Pekka Pessi's avatar
Pekka Pessi committed
170 171 172

    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
173

Pekka Pessi's avatar
Pekka Pessi committed
174 175 176
    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
177 178
} nua_session_state_t;

Pekka Pessi's avatar
Pekka Pessi committed
179 180 181
#define \
  NH_ACTIVE_MEDIA_TAGS(include, soa)					\
  TAG_IF((include) && (soa) && soa_is_audio_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
182
	 SOATAG_ACTIVE_AUDIO(soa_is_audio_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
183
  TAG_IF((include) && (soa) && soa_is_video_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
184
	 SOATAG_ACTIVE_VIDEO(soa_is_video_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
185
  TAG_IF((include) && (soa) && soa_is_image_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
186
	 SOATAG_ACTIVE_IMAGE(soa_is_image_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
187
  TAG_IF((include) && (soa) && soa_is_chat_active(soa) >= 0,		\
Pekka Pessi's avatar
Pekka Pessi committed
188
	 SOATAG_ACTIVE_CHAT(soa_is_chat_active(soa)))
Pekka Pessi's avatar
Pekka Pessi committed
189 190 191 192

#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
193
	 SOATAG_ACTIVE_AUDIO(soa_is_remote_audio_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
194
  TAG_IF((include) && (soa) && soa_is_remote_video_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
195
	 SOATAG_ACTIVE_VIDEO(soa_is_remote_video_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
196
  TAG_IF((include) && (soa) && soa_is_remote_image_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
197
	 SOATAG_ACTIVE_IMAGE(soa_is_remote_image_active(soa))),		\
Pekka Pessi's avatar
Pekka Pessi committed
198
  TAG_IF((include) && (soa) && soa_is_remote_chat_active(soa) >= 0,	\
Pekka Pessi's avatar
Pekka Pessi committed
199
	 SOATAG_ACTIVE_CHAT(soa_is_remote_chat_active(soa)))
Pekka Pessi's avatar
Pekka Pessi committed
200

Pekka Pessi's avatar
Pekka Pessi committed
201 202 203 204 205 206 207 208 209 210 211 212 213
/** 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 */

214 215
  tagi_t         *nh_tags;	/**< Initial tags */
  tagi_t         *nh_ptags;	/**< Initial parameters */
Pekka Pessi's avatar
Pekka Pessi committed
216

217 218
  nua_handle_t   *nh_identity;	/**< Identity */

219 220
  nua_handle_preferences_t *nh_prefs; /**< Preferences */

Pekka Pessi's avatar
Pekka Pessi committed
221
  /* Handle state */
222 223
  nua_event_t     nh_special;	/**< Special event */

Pekka Pessi's avatar
Pekka Pessi committed
224 225
  unsigned        nh_ref_by_stack:1;	/**< Has stack used the handle? */
  unsigned        nh_ref_by_user:1;	/**< Has user used the handle? */
226 227
  unsigned        nh_init:1;	        /**< Handle has been initialized */
  unsigned        nh_used_ptags:1;	/**< Ptags has been used */
Pekka Pessi's avatar
Pekka Pessi committed
228 229 230 231 232 233 234 235 236 237 238 239 240 241

  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
242
  soa_session_t  *nh_soa;	/**< Media session */
Pekka Pessi's avatar
Pekka Pessi committed
243 244

  struct nua_referral {
245
    nua_handle_t  *ref_handle;	/**< Referring handle */
Pekka Pessi's avatar
Pekka Pessi committed
246 247 248 249 250 251 252 253 254 255 256 257 258
    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)

259 260
#define NH_IS_DEFAULT(nh) ((nh) == (nh)->nh_nua->nua_handles)

261 262 263 264 265 266 267 268 269 270 271 272 273 274 275
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;
}


276
extern char const nua_internal_error[];
Pekka Pessi's avatar
Pekka Pessi committed
277

278
#define NUA_INTERNAL_ERROR 900, nua_internal_error
Pekka Pessi's avatar
Pekka Pessi committed
279 280 281 282 283 284 285 286

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;
287 288 289

  su_network_changed_t *nua_nw_changed;

Pekka Pessi's avatar
Pekka Pessi committed
290 291 292
  nua_callback_f       nua_callback;
  nua_magic_t         *nua_magic;

Pekka Pessi's avatar
Pekka Pessi committed
293
  nua_saved_event_t    nua_current[1];
294
  nua_saved_event_t    nua_signal[1];
Pekka Pessi's avatar
Pekka Pessi committed
295

296 297 298 299 300
  /* 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
301 302 303
  /**< Used by stop-and-wait args calls */
  tagi_t const        *nua_args;

304 305
  /**< Local SIP address. Contents are kept around for ever. */
  sip_from_t          nua_from[1];
Pekka Pessi's avatar
Pekka Pessi committed
306 307

  /* Protocol (server) side */
308 309 310

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

311
  /* Constants */
Pekka Pessi's avatar
Pekka Pessi committed
312
  sip_accept_t       *nua_invite_accept; /* What we accept for invite */
313

Pekka Pessi's avatar
Pekka Pessi committed
314 315 316 317 318 319 320 321 322 323 324 325
  su_root_t          *nua_root;
  su_task_r           nua_server;
  nta_agent_t        *nua_nta;
  su_timer_t         *nua_timer;

  void         	      *nua_sip_parser;

  sip_time_t           nua_shutdown;

  /* Route */
  sip_service_route_t *nua_service_route;

326
  /* User-agent parameters */
Pekka Pessi's avatar
Pekka Pessi committed
327 328 329 330 331 332 333 334 335 336 337 338
  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;
};

339
#define nua_dhandle    nua_handles
Pekka Pessi's avatar
Pekka Pessi committed
340 341 342 343 344 345 346

#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
347
#define __func__ __FUNCTION__
Pekka Pessi's avatar
Pekka Pessi committed
348 349 350
#else
#define enter ((void)0)
#define nh_enter ((void)0)
Pekka Pessi's avatar
Pekka Pessi committed
351
#define __func__ "nua"
Pekka Pessi's avatar
Pekka Pessi committed
352 353 354
#endif

/* Internal prototypes */
355 356 357 358
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
359 360 361
int nua_stack_init_transport(nua_t *nua, tagi_t const *tags);

int nua_stack_init_registrations(nua_t *nua);
362

363 364 365 366
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);
367

368 369 370
sip_contact_t const *nua_registration_contact(nua_registration_t const *nr);

int nua_registration_process_request(nua_registration_t *nr,
371 372
				     nta_incoming_t *irq,
				     sip_t const *sip);
373

374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402
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
403 404 405 406

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

407 408 409 410 411 412
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);

413 414
int nua_handle_save_tags(nua_handle_t *h, tagi_t *tags);

415 416 417 418
void nh_destroy(nua_t *nua, nua_handle_t *nh);

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

419 420
int nua_stack_set_defaults(nua_handle_t *nh, nua_handle_preferences_t *nhp);

Pekka Pessi's avatar
Pekka Pessi committed
421
int nua_stack_set_from(nua_t *, int initial, tagi_t const *tags);
422 423 424

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

425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440
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, ...);

441 442
int nua_stack_launch_network_change_detector(nua_t *nua);

443 444 445 446 447 448 449 450 451 452 453 454
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);

455 456 457 458 459 460 461
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, ...);

462 463 464 465 466 467
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);

468 469 470 471 472 473 474
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);

475
sip_contact_t const *nua_stack_get_contact(nua_registration_t const *nr);
476

477 478 479 480 481 482 483 484 485 486 487
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);
488

489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506
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;
507
nua_stack_process_request_t nua_stack_process_subscribe;
508 509 510
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;
Michael Jerris's avatar
Michael Jerris committed
511
nua_stack_process_request_t nua_stack_process_register;
512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541

#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

542 543
#define SET_STATUS2(_status, _phrase) status = _status, phrase = _phrase

544 545 546 547 548 549 550 551 552 553 554
/* 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
555 556 557 558 559 560
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);

561 562
SOFIA_END_DECLS

Pekka Pessi's avatar
Pekka Pessi committed
563
#endif /* NUA_STACK_H */