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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 "sal.h"
30
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34 #include "mediastreamer2/mediastream.h"
35
36 #ifndef LIBLINPHONE_VERSION 
37 #define LIBLINPHONE_VERSION LINPHONE_VERSION
38 #endif
39
40 #ifndef PACKAGE_SOUND_DIR 
41 #define PACKAGE_SOUND_DIR "."
42 #endif
43
44 #ifdef HAVE_GETTEXT
45 #include <libintl.h>
46 #ifndef _
47 #define _(String) gettext(String)
48 #endif
49 #else
50 #ifndef _
51 #define _(something)    (something)
52 #endif
53 #ifndef ngettext
54 #define ngettext(singular, plural, number)      (((number)==1)?(singular):(plural))
55 #endif
56 #endif
57
58
59 struct _LinphoneCallParams{
60         LinphoneCall *referer; /*in case this call creation is consecutive to an incoming transfer, this points to the original call */
61         int audio_bw; /* bandwidth limit for audio stream */
62         bool_t has_video;
63         bool_t real_early_media; /*send real media even during early media (for outgoing calls)*/
64         bool_t pad[2];
65 };
66
67 struct _LinphoneCall
68 {
69         struct _LinphoneCore *core;
70         SalMediaDescription *localdesc;
71         SalMediaDescription *resultdesc;
72         LinphoneCallDir dir;
73         struct _RtpProfile *audio_profile;
74         struct _RtpProfile *video_profile;
75         struct _LinphoneCallLog *log;
76         SalOp *op;
77         SalOp *ping_op;
78         char localip[LINPHONE_IPADDR_SIZE]; /* our best guess for local ipaddress for this call */
79         time_t start_time; /*time at which the call was initiated*/
80         time_t media_start_time; /*time at which it was accepted, media streams established*/
81         LinphoneCallState       state;
82         LinphoneReason reason;
83         int refcnt;
84         void * user_pointer;
85         int audio_port;
86         int video_port;
87         struct _AudioStream *audiostream;  /**/
88         struct _VideoStream *videostream;
89         char *refer_to;
90         LinphoneCallParams params;
91         LinphoneCallParams current_params;
92         int up_bw; /*upload bandwidth setting at the time the call is started. Used to detect if it changes during a call */
93         int audio_bw;   /*upload bandwidth used by audio */
94         bool_t refer_pending;
95         bool_t media_pending;
96         bool_t audio_muted;
97         bool_t camera_active;
98         bool_t all_muted; /*this flag is set during early medias*/
99         bool_t playing_ringbacktone;
100 };
101
102
103 LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params);
104 LinphoneCall * linphone_call_new_incoming(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op);
105 void linphone_call_set_state(LinphoneCall *call, LinphoneCallState cstate, const char *message);
106
107 /* private: */
108 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *local, LinphoneAddress * remote);
109 void linphone_call_log_completed(LinphoneCallLog *calllog, LinphoneCall *call, LinphoneCallStatus status);
110 void linphone_call_log_destroy(LinphoneCallLog *cl);
111
112 void linphone_auth_info_write_config(struct _LpConfig *config, LinphoneAuthInfo *obj, int pos);
113
114 void linphone_core_update_proxy_register(LinphoneCore *lc);
115 void linphone_core_refresh_subscribes(LinphoneCore *lc);
116 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error);
117
118 int linphone_proxy_config_send_publish(LinphoneProxyConfig *cfg, LinphoneOnlineStatus os);
119 void linphone_proxy_config_set_state(LinphoneProxyConfig *cfg, LinphoneRegistrationState rstate, const char *message);
120
121 int linphone_online_status_to_eXosip(LinphoneOnlineStatus os);
122 void linphone_friend_close_subscriptions(LinphoneFriend *lf);
123 void linphone_friend_notify(LinphoneFriend *lf, LinphoneOnlineStatus os);
124 LinphoneFriend *linphone_find_friend_by_inc_subscribe(MSList *l, SalOp *op);
125 LinphoneFriend *linphone_find_friend_by_out_subscribe(MSList *l, SalOp *op);
126
127
128 int set_lock_file();
129 int get_lock_file();
130 int remove_lock_file();
131 int do_registration(LinphoneCore *lc, bool_t doit);
132 void check_for_registration(LinphoneCore *lc);
133 void check_sound_device(LinphoneCore *lc);
134 void linphone_core_verify_codecs(LinphoneCore *lc);
135 void linphone_core_get_local_ip(LinphoneCore *lc, const char *to, char *result);
136 bool_t host_has_ipv6_network();
137 bool_t lp_spawn_command_line_sync(const char *command, char **result,int *command_ret);
138
139 static inline int get_min_bandwidth(int dbw, int ubw){
140         if (dbw<=0) return ubw;
141         if (ubw<=0) return dbw;
142         return MIN(dbw,ubw);
143 }
144
145 static inline bool_t bandwidth_is_greater(int bw1, int bw2){
146         if (bw1<0) return TRUE;
147         else if (bw2<0) return FALSE;
148         else return bw1>=bw2;
149 }
150
151 static inline int get_video_bandwidth(int total, int audio){
152         if (total<=0) return 0;
153         return total-audio-10;
154 }
155
156 static inline void set_string(char **dest, const char *src){
157         if (*dest){
158                 ms_free(*dest);
159                 *dest=NULL;
160         }
161         if (src)
162                 *dest=ms_strdup(src);
163 }
164
165 #define PAYLOAD_TYPE_ENABLED    PAYLOAD_TYPE_USER_FLAG_0
166
167 SalPresenceStatus linphone_online_status_to_sal(LinphoneOnlineStatus os);
168 void linphone_process_authentication(LinphoneCore* lc, SalOp *op);
169 void linphone_authentication_ok(LinphoneCore *lc, SalOp *op);
170 void linphone_subscription_new(LinphoneCore *lc, SalOp *op, const char *from);
171 void linphone_notify_recv(LinphoneCore *lc, SalOp *op, SalSubscribeState ss, SalPresenceStatus status);
172 void linphone_proxy_config_process_authentication_failure(LinphoneCore *lc, SalOp *op);
173
174 void linphone_subscription_answered(LinphoneCore *lc, SalOp *op);
175 void linphone_subscription_closed(LinphoneCore *lc, SalOp *op);
176
177 MSList *linphone_find_friend(MSList *fl, const LinphoneAddress *fri, LinphoneFriend **lf);
178
179 void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc);
180 void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt);
181 void linphone_core_run_stun_tests(LinphoneCore *lc, LinphoneCall *call);
182
183 void linphone_core_send_initial_subscribes(LinphoneCore *lc);
184 void linphone_core_write_friends_config(LinphoneCore* lc);
185 void linphone_friend_write_to_config_file(struct _LpConfig *config, LinphoneFriend *lf, int index);
186 LinphoneFriend * linphone_friend_new_from_config_file(struct _LinphoneCore *lc, int index);
187
188 void linphone_proxy_config_update(LinphoneProxyConfig *cfg);
189 void linphone_proxy_config_get_contact(LinphoneProxyConfig *cfg, const char **ip, int *port);
190 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri);
191 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route);
192 int linphone_core_get_local_ip_for(int type, const char *dest, char *result);
193
194 LinphoneProxyConfig *linphone_proxy_config_new_from_config_file(struct _LpConfig *config, int index);
195 void linphone_proxy_config_write_to_config_file(struct _LpConfig* config,LinphoneProxyConfig *obj, int index);
196
197 int linphone_proxy_config_normalize_number(LinphoneProxyConfig *cfg, const char *username, char *result, size_t result_len);
198
199 void linphone_core_text_received(LinphoneCore *lc, const char *from, const char *msg);
200
201 void linphone_call_init_media_streams(LinphoneCall *call);
202 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone);
203 void linphone_call_stop_media_streams(LinphoneCall *call);
204
205 const char * linphone_core_get_identity(LinphoneCore *lc);
206 const char * linphone_core_get_route(LinphoneCore *lc);
207 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose);
208 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progresses);
209 void linphone_core_stop_waiting(LinphoneCore *lc);
210
211 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy);
212 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call);
213 extern SalCallbacks linphone_sal_callbacks;
214 void linphone_proxy_config_set_error(LinphoneProxyConfig *cfg, LinphoneReason error);
215
216 struct _LinphoneProxyConfig
217 {
218         struct _LinphoneCore *lc;
219         char *reg_proxy;
220         char *reg_identity;
221         char *reg_route;
222         char *realm;
223         int expires;
224         int reg_time;
225         SalOp *op;
226         char *type;
227         struct _SipSetupContext *ssctx;
228         int auth_failures;
229         char *dial_prefix;
230         LinphoneRegistrationState state;
231         SalOp *publish_op;
232         bool_t commit;
233         bool_t reg_sendregister;
234         bool_t registered;
235         bool_t publish;
236         bool_t dial_escape_plus;
237         void* user_data;
238         time_t deletion_date;
239         LinphoneReason error;
240 };
241
242 struct _LinphoneAuthInfo 
243 {
244         char *username;
245         char *realm;
246         char *userid;
247         char *passwd;
248         char *ha1;
249         int usecount;
250         bool_t works;
251 };
252
253 struct _LinphoneChatRoom{
254         struct _LinphoneCore *lc;
255         char  *peer;
256         LinphoneAddress *peer_url;
257         SalOp *op;
258         void * user_data;
259 };
260
261 struct _LinphoneFriend{
262         LinphoneAddress *uri;
263         SalOp *insub;
264         SalOp *outsub;
265         LinphoneSubscribePolicy pol;
266         LinphoneOnlineStatus status;
267         struct _LinphoneCore *lc;
268         BuddyInfo *info;
269         char *refkey;
270         bool_t subscribe;
271         bool_t subscribe_active;
272         bool_t inc_subscribe_pending;
273         bool_t commit;
274 };      
275
276
277 typedef struct sip_config
278 {
279         char *contact;
280         char *guessed_contact;
281         MSList *proxies;
282         MSList *deleted_proxies;
283         int inc_timeout;        /*timeout after an un-answered incoming call is rejected*/
284         unsigned int keepalive_period; /* interval in ms between keep alive messages sent to the proxy server*/
285         LCSipTransports transports;
286         bool_t use_info;
287         bool_t use_rfc2833;     /*force RFC2833 to be sent*/
288         bool_t guess_hostname;
289         bool_t loopback_only;
290         bool_t ipv6_enabled;
291         bool_t sdp_200_ack;
292         bool_t register_only_when_network_is_up;
293         bool_t ping_with_options;
294         bool_t auto_net_state_mon;
295 } sip_config_t;
296
297 typedef struct rtp_config
298 {
299         int audio_rtp_port;
300         int video_rtp_port;
301         int audio_jitt_comp;  /*jitter compensation*/
302         int video_jitt_comp;  /*jitter compensation*/
303         int nortp_timeout;
304         bool_t rtp_no_xmit_on_audio_mute;                              
305                               /* stop rtp xmit when audio muted */
306 }rtp_config_t;
307
308
309
310 typedef struct net_config
311 {
312         char *nat_address;
313         char *stun_server;
314         char *relay;
315         int download_bw;
316         int upload_bw;
317         int firewall_policy;
318         int mtu;
319         int down_ptime;
320         bool_t nat_sdp_only;
321 }net_config_t;
322
323
324 typedef struct sound_config
325 {
326         struct _MSSndCard * ring_sndcard;       /* the playback sndcard currently used */
327         struct _MSSndCard * play_sndcard;       /* the playback sndcard currently used */
328         struct _MSSndCard * capt_sndcard; /* the capture sndcard currently used */
329         struct _MSSndCard * lsd_card; /* dummy playback card for Linphone Sound Daemon extension */
330         const char **cards;
331         int latency;    /* latency in samples of the current used sound device */
332         char rec_lev;
333         char play_lev;
334         char ring_lev;
335         char soft_play_lev;
336         char source;
337         char *local_ring;
338         char *remote_ring;
339         char *ringback_tone;
340         bool_t ec;
341         bool_t ea;
342         bool_t agc;
343 } sound_config_t;
344
345 typedef struct codecs_config
346 {
347         MSList *audio_codecs;  /* list of audio codecs in order of preference*/
348         MSList *video_codecs;   /* for later use*/
349 }codecs_config_t;
350
351 typedef struct video_config{
352         struct _MSWebCam *device;
353         const char **cams;
354         MSVideoSize vsize;
355         bool_t capture;
356         bool_t show_local;
357         bool_t display;
358         bool_t selfview; /*during calls*/
359         const char *displaytype;
360 }video_config_t;
361
362 typedef struct ui_config
363 {
364         int is_daemon;
365         int is_applet;
366         unsigned int timer_id;  /* the timer id for registration */
367 }ui_config_t;
368
369
370
371 typedef struct autoreplier_config
372 {
373         int enabled;
374         int after_seconds;              /* accept the call after x seconds*/
375         int max_users;                  /* maximum number of user that can call simultaneously */
376         int max_rec_time;       /* the max time of incoming voice recorded */
377         int max_rec_msg;                /* maximum number of recorded messages */
378         const char *message;            /* the path of the file to be played */
379 }autoreplier_config_t;
380
381
382 struct _LinphoneCore
383 {
384         LinphoneCoreVTable vtable;
385         Sal *sal;
386         LinphoneGlobalState state;
387         struct _LpConfig *config;
388         net_config_t net_conf;
389         sip_config_t sip_conf;
390         rtp_config_t rtp_conf;
391         sound_config_t sound_conf;
392         video_config_t video_conf;
393         codecs_config_t codecs_conf;
394         ui_config_t ui_conf;
395         autoreplier_config_t autoreplier_conf;
396         LinphoneProxyConfig *default_proxy;
397         MSList *friends;
398         MSList *auth_info;
399         struct _RingStream *ringstream;
400         time_t dmfs_playing_start_time;
401         LCCallbackObj preview_finished_cb;
402         LinphoneCall *current_call;   /* the current call */
403         MSList *calls;                          /* all the processed calls */
404         MSList *queued_calls;   /* used by the autoreplier */
405         MSList *call_logs;
406         MSList *chatrooms;
407         int max_call_logs;
408         int missed_calls;
409         VideoPreview *previewstream;
410         struct _MSEventQueue *msevq;
411         RtpTransport *a_rtp,*a_rtcp;
412         MSList *bl_reqs;
413         MSList *subscribers;    /* unknown subscribers */
414         int minutes_away;
415         LinphoneOnlineStatus presence_mode;
416         char *alt_contact;
417         void *data;
418         char *play_file;
419         char *rec_file;
420         time_t prevtime;
421         int audio_bw;
422         LinphoneWaitingCallback wait_cb;
423         void *wait_ctx;
424         unsigned long video_window_id;
425         unsigned long preview_window_id;
426         time_t netup_time; /*time when network went reachable */
427         bool_t use_files;
428         bool_t apply_nat_settings;
429         bool_t initial_subscribes_sent;
430         bool_t bl_refresh;
431         bool_t preview_finished;
432         bool_t auto_net_state_mon;
433         bool_t network_reachable;
434         bool_t use_preview_window;
435 };
436
437 bool_t linphone_core_can_we_add_call(LinphoneCore *lc);
438 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call);
439 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call);
440 int linphone_core_set_as_current_call(LinphoneCore *lc, LinphoneCall *call);
441 int linphone_core_get_calls_nb(const LinphoneCore *lc);
442
443 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message);
444
445 SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call);
446
447 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md);
448
449 bool_t linphone_core_is_payload_type_usable_for_bandwidth(LinphoneCore *lc, PayloadType *pt,  int bandwidth_limit);
450
451 #define linphone_core_ready(lc) ((lc)->state!=LinphoneGlobalStartup)
452 void _linphone_core_configure_resolver();
453
454 #define HOLD_OFF        (0)
455 #define HOLD_ON         (1)
456
457 #ifndef NB_MAX_CALLS
458 #define NB_MAX_CALLS    (10)
459 #endif
460
461 #endif /* _PRIVATE_H */