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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 void set_string(char **dest, const char *src){
152         if (*dest){
153                 ms_free(*dest);
154                 *dest=NULL;
155         }
156         if (src)
157                 *dest=ms_strdup(src);
158 }
159
160 #define PAYLOAD_TYPE_ENABLED    PAYLOAD_TYPE_USER_FLAG_0
161
162 SalPresenceStatus linphone_online_status_to_sal(LinphoneOnlineStatus os);
163 void linphone_process_authentication(LinphoneCore* lc, SalOp *op);
164 void linphone_authentication_ok(LinphoneCore *lc, SalOp *op);
165 void linphone_subscription_new(LinphoneCore *lc, SalOp *op, const char *from);
166 void linphone_notify_recv(LinphoneCore *lc, SalOp *op, SalSubscribeState ss, SalPresenceStatus status);
167 void linphone_proxy_config_process_authentication_failure(LinphoneCore *lc, SalOp *op);
168
169 void linphone_subscription_answered(LinphoneCore *lc, SalOp *op);
170 void linphone_subscription_closed(LinphoneCore *lc, SalOp *op);
171
172 MSList *linphone_find_friend(MSList *fl, const LinphoneAddress *fri, LinphoneFriend **lf);
173
174 void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc);
175 void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt);
176 void linphone_core_run_stun_tests(LinphoneCore *lc, LinphoneCall *call);
177
178 void linphone_core_send_initial_subscribes(LinphoneCore *lc);
179 void linphone_core_write_friends_config(LinphoneCore* lc);
180 void linphone_friend_write_to_config_file(struct _LpConfig *config, LinphoneFriend *lf, int index);
181 LinphoneFriend * linphone_friend_new_from_config_file(struct _LinphoneCore *lc, int index);
182
183 void linphone_proxy_config_update(LinphoneProxyConfig *cfg);
184 void linphone_proxy_config_get_contact(LinphoneProxyConfig *cfg, const char **ip, int *port);
185 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri);
186 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route);
187 int linphone_core_get_local_ip_for(int type, const char *dest, char *result);
188
189 LinphoneProxyConfig *linphone_proxy_config_new_from_config_file(struct _LpConfig *config, int index);
190 void linphone_proxy_config_write_to_config_file(struct _LpConfig* config,LinphoneProxyConfig *obj, int index);
191
192 int linphone_proxy_config_normalize_number(LinphoneProxyConfig *cfg, const char *username, char *result, size_t result_len);
193
194 void linphone_core_text_received(LinphoneCore *lc, const char *from, const char *msg);
195
196 void linphone_call_init_media_streams(LinphoneCall *call);
197 void linphone_call_start_media_streams(LinphoneCall *call, bool_t all_inputs_muted, bool_t send_ringbacktone);
198 void linphone_call_stop_media_streams(LinphoneCall *call);
199
200 const char * linphone_core_get_identity(LinphoneCore *lc);
201 const char * linphone_core_get_route(LinphoneCore *lc);
202 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose);
203 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progresses);
204 void linphone_core_stop_waiting(LinphoneCore *lc);
205
206 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy);
207 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call);
208 extern SalCallbacks linphone_sal_callbacks;
209 void linphone_proxy_config_set_error(LinphoneProxyConfig *cfg, LinphoneReason error);
210
211 struct _LinphoneProxyConfig
212 {
213         struct _LinphoneCore *lc;
214         char *reg_proxy;
215         char *reg_identity;
216         char *reg_route;
217         char *realm;
218         int expires;
219         int reg_time;
220         SalOp *op;
221         char *type;
222         struct _SipSetupContext *ssctx;
223         int auth_failures;
224         char *dial_prefix;
225         LinphoneRegistrationState state;
226         SalOp *publish_op;
227         bool_t commit;
228         bool_t reg_sendregister;
229         bool_t registered;
230         bool_t publish;
231         bool_t dial_escape_plus;
232         void* user_data;
233         time_t deletion_date;
234         LinphoneReason error;
235 };
236
237 struct _LinphoneAuthInfo 
238 {
239         char *username;
240         char *realm;
241         char *userid;
242         char *passwd;
243         char *ha1;
244         int usecount;
245         bool_t works;
246 };
247
248 struct _LinphoneChatRoom{
249         struct _LinphoneCore *lc;
250         char  *peer;
251         LinphoneAddress *peer_url;
252         SalOp *op;
253         void * user_data;
254 };
255
256 struct _LinphoneFriend{
257         LinphoneAddress *uri;
258         SalOp *insub;
259         SalOp *outsub;
260         LinphoneSubscribePolicy pol;
261         LinphoneOnlineStatus status;
262         struct _LinphoneCore *lc;
263         BuddyInfo *info;
264         char *refkey;
265         bool_t subscribe;
266         bool_t subscribe_active;
267         bool_t inc_subscribe_pending;
268         bool_t commit;
269 };      
270
271
272 typedef struct sip_config
273 {
274         char *contact;
275         char *guessed_contact;
276         MSList *proxies;
277         MSList *deleted_proxies;
278         int inc_timeout;        /*timeout after an un-answered incoming call is rejected*/
279         unsigned int keepalive_period; /* interval in ms between keep alive messages sent to the proxy server*/
280         LCSipTransports transports;
281         bool_t use_info;
282         bool_t use_rfc2833;     /*force RFC2833 to be sent*/
283         bool_t guess_hostname;
284         bool_t loopback_only;
285         bool_t ipv6_enabled;
286         bool_t sdp_200_ack;
287         bool_t register_only_when_network_is_up;
288         bool_t ping_with_options;
289         bool_t auto_net_state_mon;
290 } sip_config_t;
291
292 typedef struct rtp_config
293 {
294         int audio_rtp_port;
295         int video_rtp_port;
296         int audio_jitt_comp;  /*jitter compensation*/
297         int video_jitt_comp;  /*jitter compensation*/
298         int nortp_timeout;
299         bool_t rtp_no_xmit_on_audio_mute;                              
300                               /* stop rtp xmit when audio muted */
301 }rtp_config_t;
302
303
304
305 typedef struct net_config
306 {
307         char *nat_address;
308         char *stun_server;
309         char *relay;
310         int download_bw;
311         int upload_bw;
312         int firewall_policy;
313         int mtu;
314         int down_ptime;
315         bool_t nat_sdp_only;
316 }net_config_t;
317
318
319 typedef struct sound_config
320 {
321         struct _MSSndCard * ring_sndcard;       /* the playback sndcard currently used */
322         struct _MSSndCard * play_sndcard;       /* the playback sndcard currently used */
323         struct _MSSndCard * capt_sndcard; /* the capture sndcard currently used */
324         struct _MSSndCard * lsd_card; /* dummy playback card for Linphone Sound Daemon extension */
325         const char **cards;
326         int latency;    /* latency in samples of the current used sound device */
327         char rec_lev;
328         char play_lev;
329         char ring_lev;
330         char soft_play_lev;
331         char source;
332         char *local_ring;
333         char *remote_ring;
334         char *ringback_tone;
335         bool_t ec;
336         bool_t ea;
337         bool_t agc;
338 } sound_config_t;
339
340 typedef struct codecs_config
341 {
342         MSList *audio_codecs;  /* list of audio codecs in order of preference*/
343         MSList *video_codecs;   /* for later use*/
344 }codecs_config_t;
345
346 typedef struct video_config{
347         struct _MSWebCam *device;
348         const char **cams;
349         MSVideoSize vsize;
350         bool_t capture;
351         bool_t show_local;
352         bool_t display;
353         bool_t selfview; /*during calls*/
354         const char *displaytype;
355 }video_config_t;
356
357 typedef struct ui_config
358 {
359         int is_daemon;
360         int is_applet;
361         unsigned int timer_id;  /* the timer id for registration */
362 }ui_config_t;
363
364
365
366 typedef struct autoreplier_config
367 {
368         int enabled;
369         int after_seconds;              /* accept the call after x seconds*/
370         int max_users;                  /* maximum number of user that can call simultaneously */
371         int max_rec_time;       /* the max time of incoming voice recorded */
372         int max_rec_msg;                /* maximum number of recorded messages */
373         const char *message;            /* the path of the file to be played */
374 }autoreplier_config_t;
375
376
377 struct _LinphoneCore
378 {
379         LinphoneCoreVTable vtable;
380         Sal *sal;
381         LinphoneGlobalState state;
382         struct _LpConfig *config;
383         net_config_t net_conf;
384         sip_config_t sip_conf;
385         rtp_config_t rtp_conf;
386         sound_config_t sound_conf;
387         video_config_t video_conf;
388         codecs_config_t codecs_conf;
389         ui_config_t ui_conf;
390         autoreplier_config_t autoreplier_conf;
391         LinphoneProxyConfig *default_proxy;
392         MSList *friends;
393         MSList *auth_info;
394         struct _RingStream *ringstream;
395         time_t dmfs_playing_start_time;
396         LCCallbackObj preview_finished_cb;
397         LinphoneCall *current_call;   /* the current call */
398         MSList *calls;                          /* all the processed calls */
399         MSList *queued_calls;   /* used by the autoreplier */
400         MSList *call_logs;
401         MSList *chatrooms;
402         int max_call_logs;
403         int missed_calls;
404         VideoPreview *previewstream;
405         struct _MSEventQueue *msevq;
406         RtpTransport *a_rtp,*a_rtcp;
407         MSList *bl_reqs;
408         MSList *subscribers;    /* unknown subscribers */
409         int minutes_away;
410         LinphoneOnlineStatus presence_mode;
411         char *alt_contact;
412         void *data;
413         char *play_file;
414         char *rec_file;
415         time_t prevtime;
416         int audio_bw;
417         LinphoneWaitingCallback wait_cb;
418         void *wait_ctx;
419         unsigned long video_window_id;
420         unsigned long preview_window_id;
421         time_t netup_time; /*time when network went reachable */
422         bool_t use_files;
423         bool_t apply_nat_settings;
424         bool_t initial_subscribes_sent;
425         bool_t bl_refresh;
426         bool_t preview_finished;
427         bool_t auto_net_state_mon;
428         bool_t network_reachable;
429         bool_t use_preview_window;
430 };
431
432 bool_t linphone_core_can_we_add_call(LinphoneCore *lc);
433 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call);
434 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call);
435 int linphone_core_set_as_current_call(LinphoneCore *lc, LinphoneCall *call);
436 int linphone_core_get_calls_nb(const LinphoneCore *lc);
437
438 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message);
439
440 SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call);
441
442 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md);
443
444 bool_t linphone_core_is_payload_type_usable_for_bandwidth(LinphoneCore *lc, PayloadType *pt,  int bandwidth_limit);
445
446 #define linphone_core_ready(lc) ((lc)->state!=LinphoneGlobalStartup)
447 void _linphone_core_configure_resolver();
448
449 #define HOLD_OFF        (0)
450 #define HOLD_ON         (1)
451
452 #ifndef NB_MAX_CALLS
453 #define NB_MAX_CALLS    (10)
454 #endif
455
456 #endif /* _PRIVATE_H */