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[linphone] / coreapi / private.h
1 /***************************************************************************
2  *            private.h
3  *
4  *  Mon Jun 13 14:23:23 2005
5  *  Copyright  2005  Simon Morlat
6  *  Email simon dot morlat at linphone dot org
7  ****************************************************************************/
8
9 /*
10  *  This program is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License as published by
12  *  the Free Software Foundation; either version 2 of the License, or
13  *  (at your option) any later version.
14  *
15  *  This program is distributed in the hope that it will be useful,
16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *  GNU General Public License for more details.
19  *
20  *  You should have received a copy of the GNU General Public License
21  *  along with this program; if not, write to the Free Software
22  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23  */
24
25 #ifndef _PRIVATE_H
26 #define _PRIVATE_H
27 #ifdef __cplusplus
28 extern "C" {
29 #endif
30 #include "linphonecore.h"
31 #include "linphone_tunnel.h"
32 #include "linphonecore_utils.h"
33 #include "sal.h"
34
35 #ifdef HAVE_CONFIG_H
36 #include "config.h"
37 #endif
38 #include "mediastreamer2/ice.h"
39 #include "mediastreamer2/mediastream.h"
40 #include "mediastreamer2/msconference.h"
41
42 #ifndef LIBLINPHONE_VERSION
43 #define LIBLINPHONE_VERSION LINPHONE_VERSION
44 #endif
45
46 #ifndef PACKAGE_SOUND_DIR
47 #define PACKAGE_SOUND_DIR "."
48 #endif
49
50 #ifndef PACKAGE_DATA_DIR
51 #define PACKAGE_DATA_DIR "."
52 #endif
53
54 #ifdef HAVE_GETTEXT
55 #include <libintl.h>
56 #ifndef _
57 #define _(String) gettext(String)
58 #endif
59 #else
60 #ifndef _
61 #define _(something)    (something)
62 #endif
63 #ifndef ngettext
64 #define ngettext(singular, plural, number)      (((number)==1)?(singular):(plural))
65 #endif
66 #endif
67
68 struct _LinphoneCallParams{
69         LinphoneCall *referer; /*in case this call creation is consecutive to an incoming transfer, this points to the original call */
70         int audio_bw; /* bandwidth limit for audio stream */
71         LinphoneMediaEncryption media_encryption;
72         PayloadType *audio_codec;
73         PayloadType *video_codec;
74         bool_t has_video;
75         bool_t real_early_media; /*send real media even during early media (for outgoing calls)*/
76         bool_t in_conference; /*in conference mode */
77         bool_t pad;
78         
79 };
80     
81 typedef struct _CallCallbackObj
82 {
83     LinphoneCallCbFunc _func;
84     void * _user_data;
85 }CallCallbackObj;
86
87 static const int linphone_call_magic=0x3343;
88
89 struct _LinphoneCall
90 {
91         int magic; /*used to distinguish from proxy config*/
92         struct _LinphoneCore *core;
93         SalMediaDescription *localdesc;
94         SalMediaDescription *resultdesc;
95         LinphoneCallDir dir;
96         LinphoneCall *referer; /*when this call is the result of a transfer, referer is set to the original call that caused the transfer*/
97         struct _RtpProfile *audio_profile;
98         struct _RtpProfile *video_profile;
99         struct _LinphoneCallLog *log;
100         SalOp *op;
101         SalOp *ping_op;
102         char localip[LINPHONE_IPADDR_SIZE]; /* our best guess for local ipaddress for this call */
103         time_t start_time; /*time at which the call was initiated*/
104         time_t media_start_time; /*time at which it was accepted, media streams established*/
105         LinphoneCallState       state;
106         LinphoneCallState transfer_state; /*idle if no transfer*/
107         LinphoneReason reason;
108         int refcnt;
109         void * user_pointer;
110         int audio_port;
111         int video_port;
112         struct _AudioStream *audiostream;  /**/
113         struct _VideoStream *videostream;
114         MSAudioEndpoint *endpoint; /*used for conferencing*/
115         char *refer_to;
116         LinphoneCallParams params;
117         LinphoneCallParams current_params;
118         LinphoneCallParams remote_params;
119         int up_bw; /*upload bandwidth setting at the time the call is started. Used to detect if it changes during a call */
120         int audio_bw;   /*upload bandwidth used by audio */
121         bool_t refer_pending;
122         bool_t media_pending;
123         bool_t audio_muted;
124         bool_t camera_active;
125         bool_t all_muted; /*this flag is set during early medias*/
126         bool_t playing_ringbacktone;
127         bool_t owns_call_log;
128         bool_t ringing_beep; /* whether this call is ringing through an already existent current call*/
129         OrtpEvQueue *audiostream_app_evq;
130         char *auth_token;
131         OrtpEvQueue *videostream_app_evq;
132         bool_t videostream_encrypted;
133         bool_t audiostream_encrypted;
134         bool_t auth_token_verified;
135         bool_t defer_update;
136         bool_t was_automatically_paused;
137         CallCallbackObj nextVideoFrameDecoded;
138         LinphoneCallStats stats[2];
139 };
140
141
142 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params);
143 LinphoneCall * linphone_call_new_incoming(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op);
144 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message);
145
146 /* private: */
147 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *local, LinphoneAddress * remote);
148 void linphone_call_log_completed(LinphoneCall *call);
149 void linphone_call_log_destroy(LinphoneCallLog *cl);
150 void linphone_call_set_transfer_state(LinphoneCall* call, LinphoneCallState state);
151
152 void linphone_auth_info_write_config(struct _LpConfig *config, LinphoneAuthInfo *obj, int pos);
153
154 void linphone_core_update_proxy_register(LinphoneCore *lc);
155 void linphone_core_refresh_subscribes(LinphoneCore *lc);
156 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error);
157
158 int linphone_proxy_config_send_publish(LinphoneProxyConfig *cfg, LinphoneOnlineStatus os);
159 void linphone_proxy_config_set_state(LinphoneProxyConfig *cfg, LinphoneRegistrationState rstate, const char *message);
160
161 int linphone_online_status_to_eXosip(LinphoneOnlineStatus os);
162 void linphone_friend_close_subscriptions(LinphoneFriend *lf);
163 void linphone_friend_notify(LinphoneFriend *lf, LinphoneOnlineStatus os);
164 LinphoneFriend *linphone_find_friend_by_inc_subscribe(MSList *l, SalOp *op);
165 LinphoneFriend *linphone_find_friend_by_out_subscribe(MSList *l, SalOp *op);
166
167 int parse_hostname_to_addr(const char *server, struct sockaddr_storage *ss, socklen_t *socklen);
168 int set_lock_file();
169 int get_lock_file();
170 int remove_lock_file();
171 int do_registration(LinphoneCore *lc, bool_t doit);
172 void check_for_registration(LinphoneCore *lc);
173 void check_sound_device(LinphoneCore *lc);
174 void linphone_core_verify_codecs(LinphoneCore *lc);
175 void linphone_core_get_local_ip(LinphoneCore *lc, const char *to, char *result);
176 bool_t host_has_ipv6_network();
177 bool_t lp_spawn_command_line_sync(const char *command, char **result,int *command_ret);
178
179 static inline int get_min_bandwidth(int dbw, int ubw){
180         if (dbw<=0) return ubw;
181         if (ubw<=0) return dbw;
182         return MIN(dbw,ubw);
183 }
184
185 static inline bool_t bandwidth_is_greater(int bw1, int bw2){
186         if (bw1<0) return TRUE;
187         else if (bw2<0) return FALSE;
188         else return bw1>=bw2;
189 }
190
191 static inline int get_video_bandwidth(int total, int audio){
192         if (total<=0) return 0;
193         return total-audio-10;
194 }
195
196 static inline void set_string(char **dest, const char *src){
197         if (*dest){
198                 ms_free(*dest);
199                 *dest=NULL;
200         }
201         if (src)
202                 *dest=ms_strdup(src);
203 }
204
205 #define PAYLOAD_TYPE_ENABLED    PAYLOAD_TYPE_USER_FLAG_0
206
207 SalPresenceStatus linphone_online_status_to_sal(LinphoneOnlineStatus os);
208 void linphone_process_authentication(LinphoneCore* lc, SalOp *op);
209 void linphone_authentication_ok(LinphoneCore *lc, SalOp *op);
210 void linphone_subscription_new(LinphoneCore *lc, SalOp *op, const char *from);
211 void linphone_notify_recv(LinphoneCore *lc, SalOp *op, SalSubscribeStatus ss, SalPresenceStatus status);
212 void linphone_proxy_config_process_authentication_failure(LinphoneCore *lc, SalOp *op);
213
214 void linphone_subscription_answered(LinphoneCore *lc, SalOp *op);
215 void linphone_subscription_closed(LinphoneCore *lc, SalOp *op);
216
217 MSList *linphone_find_friend(MSList *fl, const LinphoneAddress *fri, LinphoneFriend **lf);
218
219 void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc);
220 void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt);
221 void linphone_core_run_stun_tests(LinphoneCore *lc, LinphoneCall *call);
222 void linphone_core_gather_ice_candidates(LinphoneCore *lc, LinphoneCall *call);
223
224 void linphone_core_send_initial_subscribes(LinphoneCore *lc);
225 void linphone_core_write_friends_config(LinphoneCore* lc);
226 void linphone_friend_write_to_config_file(struct _LpConfig *config, LinphoneFriend *lf, int index);
227 LinphoneFriend * linphone_friend_new_from_config_file(struct _LinphoneCore *lc, int index);
228
229 void linphone_proxy_config_update(LinphoneProxyConfig *cfg);
230 void linphone_proxy_config_get_contact(LinphoneProxyConfig *cfg, const char **ip, int *port);
231 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri);
232 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route);
233 int linphone_core_get_local_ip_for(int type, const char *dest, char *result);
234
235 LinphoneProxyConfig *linphone_proxy_config_new_from_config_file(struct _LpConfig *config, int index);
236 void linphone_proxy_config_write_to_config_file(struct _LpConfig* config,LinphoneProxyConfig *obj, int index);
237
238 int linphone_proxy_config_normalize_number(LinphoneProxyConfig *cfg, const char *username, char *result, size_t result_len);
239
240 void linphone_core_text_received(LinphoneCore *lc, const char *from, const char *msg);
241
242 void linphone_core_play_tone(LinphoneCore *lc);
243
244 void linphone_call_init_stats(LinphoneCallStats *stats, int type);
245
246 void linphone_call_init_media_streams(LinphoneCall *call);
247 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone);
248 void linphone_call_stop_media_streams(LinphoneCall *call);
249
250 const char * linphone_core_get_identity(LinphoneCore *lc);
251 const char * linphone_core_get_route(LinphoneCore *lc);
252 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose);
253 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progresses);
254 void linphone_core_stop_waiting(LinphoneCore *lc);
255
256 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy);
257 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call);
258 extern SalCallbacks linphone_sal_callbacks;
259 void linphone_proxy_config_set_error(LinphoneProxyConfig *cfg, LinphoneReason error);
260 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc);
261
262 LinphoneCall * is_a_linphone_call(void *user_pointer);
263 LinphoneProxyConfig * is_a_linphone_proxy_config(void *user_pointer);
264
265 static const int linphone_proxy_config_magic=0x7979;
266
267 struct _LinphoneProxyConfig
268 {
269         int magic;
270         struct _LinphoneCore *lc;
271         char *reg_proxy;
272         char *reg_identity;
273         char *reg_route;
274         char *realm;
275         int expires;
276         int reg_time;
277         SalOp *op;
278         char *type;
279         struct _SipSetupContext *ssctx;
280         int auth_failures;
281         char *dial_prefix;
282         LinphoneRegistrationState state;
283         SalOp *publish_op;
284         bool_t commit;
285         bool_t reg_sendregister;
286         bool_t publish;
287         bool_t dial_escape_plus;
288         void* user_data;
289         time_t deletion_date;
290         LinphoneReason error;
291 };
292
293 struct _LinphoneAuthInfo
294 {
295         char *username;
296         char *realm;
297         char *userid;
298         char *passwd;
299         char *ha1;
300         int usecount;
301         time_t last_use_time;
302         bool_t works;
303 };
304
305 struct _LinphoneChatRoom{
306         struct _LinphoneCore *lc;
307         char  *peer;
308         LinphoneAddress *peer_url;
309         SalOp *op;
310         void * user_data;
311 };
312
313 struct _LinphoneFriend{
314         LinphoneAddress *uri;
315         SalOp *insub;
316         SalOp *outsub;
317         LinphoneSubscribePolicy pol;
318         LinphoneOnlineStatus status;
319         struct _LinphoneCore *lc;
320         BuddyInfo *info;
321         char *refkey;
322         bool_t subscribe;
323         bool_t subscribe_active;
324         bool_t inc_subscribe_pending;
325         bool_t commit;
326 };
327
328
329 typedef struct sip_config
330 {
331         char *contact;
332         char *guessed_contact;
333         MSList *proxies;
334         MSList *deleted_proxies;
335         int inc_timeout;        /*timeout after an un-answered incoming call is rejected*/
336         unsigned int keepalive_period; /* interval in ms between keep alive messages sent to the proxy server*/
337         LCSipTransports transports;
338         bool_t use_info;
339         bool_t use_rfc2833;     /*force RFC2833 to be sent*/
340         bool_t guess_hostname;
341         bool_t loopback_only;
342         bool_t ipv6_enabled;
343         bool_t sdp_200_ack;
344         bool_t register_only_when_network_is_up;
345         bool_t ping_with_options;
346         bool_t auto_net_state_mon;
347 } sip_config_t;
348
349 typedef struct rtp_config
350 {
351         int audio_rtp_port;
352         int video_rtp_port;
353         int audio_jitt_comp;  /*jitter compensation*/
354         int video_jitt_comp;  /*jitter compensation*/
355         int nortp_timeout;
356         bool_t rtp_no_xmit_on_audio_mute;
357                               /* stop rtp xmit when audio muted */
358 }rtp_config_t;
359
360
361
362 typedef struct net_config
363 {
364         char *nat_address; /* may be IP or host name */
365         char *nat_address_ip; /* ip translated from nat_address */
366         char *stun_server;
367         char *relay;
368         int download_bw;
369         int upload_bw;
370         int firewall_policy;
371         int mtu;
372         int down_ptime;
373         bool_t nat_sdp_only;
374 }net_config_t;
375
376
377 typedef struct sound_config
378 {
379         struct _MSSndCard * ring_sndcard;       /* the playback sndcard currently used */
380         struct _MSSndCard * play_sndcard;       /* the playback sndcard currently used */
381         struct _MSSndCard * capt_sndcard; /* the capture sndcard currently used */
382         struct _MSSndCard * lsd_card; /* dummy playback card for Linphone Sound Daemon extension */
383         const char **cards;
384         int latency;    /* latency in samples of the current used sound device */
385         char rec_lev;
386         char play_lev;
387         char ring_lev;
388         char soft_play_lev;
389         char source;
390         char *local_ring;
391         char *remote_ring;
392         char *ringback_tone;
393         bool_t ec;
394         bool_t ea;
395         bool_t agc;
396 } sound_config_t;
397
398 typedef struct codecs_config
399 {
400         MSList *audio_codecs;  /* list of audio codecs in order of preference*/
401         MSList *video_codecs;   /* for later use*/
402 }codecs_config_t;
403
404 typedef struct video_config{
405         struct _MSWebCam *device;
406         const char **cams;
407         MSVideoSize vsize;
408         bool_t capture;
409         bool_t show_local;
410         bool_t display;
411         bool_t selfview; /*during calls*/
412         const char *displaytype;
413 }video_config_t;
414
415 typedef struct ui_config
416 {
417         int is_daemon;
418         int is_applet;
419         unsigned int timer_id;  /* the timer id for registration */
420 }ui_config_t;
421
422
423
424 typedef struct autoreplier_config
425 {
426         int enabled;
427         int after_seconds;              /* accept the call after x seconds*/
428         int max_users;                  /* maximum number of user that can call simultaneously */
429         int max_rec_time;       /* the max time of incoming voice recorded */
430         int max_rec_msg;                /* maximum number of recorded messages */
431         const char *message;            /* the path of the file to be played */
432 }autoreplier_config_t;
433
434 struct _LinphoneConference{
435         MSAudioConference *conf;
436         AudioStream *local_participant;
437         MSAudioEndpoint *local_endpoint;
438         RtpProfile *local_dummy_profile;
439         bool_t local_muted;
440 };
441
442 typedef struct _LinphoneConference LinphoneConference;
443
444 struct _LinphoneCore
445 {
446         LinphoneCoreVTable vtable;
447         Sal *sal;
448         LinphoneGlobalState state;
449         struct _LpConfig *config;
450         net_config_t net_conf;
451         sip_config_t sip_conf;
452         rtp_config_t rtp_conf;
453         sound_config_t sound_conf;
454         video_config_t video_conf;
455         codecs_config_t codecs_conf;
456         ui_config_t ui_conf;
457         autoreplier_config_t autoreplier_conf;
458         MSList *payload_types;
459         int dyn_pt;
460         LinphoneProxyConfig *default_proxy;
461         MSList *friends;
462         MSList *auth_info;
463         struct _RingStream *ringstream;
464         time_t dmfs_playing_start_time;
465         LCCallbackObj preview_finished_cb;
466         LinphoneCall *current_call;   /* the current call */
467         MSList *calls;                          /* all the processed calls */
468         MSList *queued_calls;   /* used by the autoreplier */
469         MSList *call_logs;
470         MSList *chatrooms;
471         int max_call_logs;
472         int missed_calls;
473         VideoPreview *previewstream;
474         struct _MSEventQueue *msevq;
475         LinphoneRtpTransportFactories *rtptf;
476         MSList *bl_reqs;
477         MSList *subscribers;    /* unknown subscribers */
478         int minutes_away;
479         LinphoneOnlineStatus presence_mode;
480         char *alt_contact;
481         void *data;
482         char *play_file;
483         char *rec_file;
484         time_t prevtime;
485         int audio_bw;
486         LinphoneWaitingCallback wait_cb;
487         void *wait_ctx;
488         unsigned long video_window_id;
489         unsigned long preview_window_id;
490         time_t netup_time; /*time when network went reachable */
491         struct _EcCalibrator *ecc;
492         MSList *hooks;
493         LinphoneConference conf_ctx;
494         char* zrtp_secrets_cache;
495         LinphoneVideoPolicy video_policy;
496         bool_t use_files;
497         bool_t apply_nat_settings;
498         bool_t initial_subscribes_sent;
499         bool_t bl_refresh;
500         
501         bool_t preview_finished;
502         bool_t auto_net_state_mon;
503         bool_t network_reachable;
504         bool_t use_preview_window;
505         
506         bool_t ringstream_autorelease;
507         bool_t pad[3];
508         int device_rotation;
509         int max_calls;
510         LinphoneTunnel *tunnel;
511 };
512
513 LinphoneTunnel *linphone_core_tunnel_new(LinphoneCore *lc);
514 void linphone_tunnel_destroy(LinphoneTunnel *tunnel);
515 void linphone_tunnel_configure(LinphoneTunnel *tunnel);
516 void linphone_tunnel_enable_logs_with_handler(LinphoneTunnel *tunnel, bool_t enabled, OrtpLogFunc logHandler);
517         
518 bool_t linphone_core_can_we_add_call(LinphoneCore *lc);
519 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call);
520 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call);
521 int linphone_core_set_as_current_call(LinphoneCore *lc, LinphoneCall *call);
522 int linphone_core_get_calls_nb(const LinphoneCore *lc);
523
524 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message);
525
526 SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call);
527 void update_local_media_description(LinphoneCore *lc, LinphoneCall *call);
528
529 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md);
530
531 bool_t linphone_core_is_payload_type_usable_for_bandwidth(LinphoneCore *lc, PayloadType *pt,  int bandwidth_limit);
532
533 #define linphone_core_ready(lc) ((lc)->state!=LinphoneGlobalStartup)
534 void _linphone_core_configure_resolver();
535
536 struct _EcCalibrator{
537         ms_thread_t thread;
538         MSSndCard *play_card,*capt_card;
539         MSFilter *sndread,*det,*rec;
540         MSFilter *play, *gen, *sndwrite,*resampler;
541         MSTicker *ticker;
542         LinphoneEcCalibrationCallback cb;
543         void *cb_data;
544         int recv_count;
545         int sent_count;
546         int64_t acc;
547         int delay;
548         unsigned int rate;
549         LinphoneEcCalibratorStatus status;
550 };
551
552 typedef struct _EcCalibrator EcCalibrator;
553
554 LinphoneEcCalibratorStatus ec_calibrator_get_status(EcCalibrator *ecc);
555
556 void ec_calibrator_destroy(EcCalibrator *ecc);
557
558 void linphone_call_background_tasks(LinphoneCall *call, bool_t one_second_elapsed);
559 void linphone_core_preempt_sound_resources(LinphoneCore *lc);
560 /*conferencing subsystem*/
561 void _post_configure_audio_stream(AudioStream *st, LinphoneCore *lc, bool_t muted);
562 /* When a conference participant pause the conference he may send a music.
563  * We don't want to hear that music or to send it to the other participants.
564  * Use muted=yes to handle this case.
565  */
566 void linphone_call_add_to_conf(LinphoneCall *call, bool_t muted);
567 void linphone_call_remove_from_conf(LinphoneCall *call);
568 void linphone_core_conference_check_uninit(LinphoneCore *lc);
569 bool_t linphone_core_sound_resources_available(LinphoneCore *lc);
570 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall);
571
572 void __linphone_core_invalidate_registers(LinphoneCore* lc);
573 void _linphone_core_codec_config_write(LinphoneCore *lc);
574
575 #define HOLD_OFF        (0)
576 #define HOLD_ON         (1)
577
578 #ifndef NB_MAX_CALLS
579 #define NB_MAX_CALLS    (10)
580 #endif
581 void call_logs_write_to_config_file(LinphoneCore *lc);
582
583
584
585 #ifdef __cplusplus
586 }
587 #endif
588
589 #endif /* _PRIVATE_H */