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