Beispiel #1
0
static int app_control_moh_start(struct stasis_app_control *control,
                                 struct ast_channel *chan, void *data)
{
    char *moh_class = data;

    ast_moh_start(chan, moh_class, NULL);

    ast_free(moh_class);
    return 0;
}
Beispiel #2
0
static int app_control_moh_start(struct stasis_app_control *control,
	struct ast_channel *chan, void *data)
{
	char *moh_class = data;

	if (ast_channel_state(chan) != AST_STATE_UP) {
		ast_indicate(chan, AST_CONTROL_PROGRESS);
	}

	ast_moh_start(chan, moh_class, NULL);

	return 0;
}
static void limits_interval_playback(struct ast_bridge_channel *bridge_channel, struct ast_bridge_features_limits *limits, const char *file)
{
	if (!strcasecmp(file, "timeleft")) {
		unsigned int remaining = ast_tvdiff_ms(limits->quitting_time, ast_tvnow()) / 1000;
		unsigned int min;
		unsigned int sec;

		if (remaining <= 0) {
			return;
		}

		if ((remaining / 60) > 1) {
			min = remaining / 60;
			sec = remaining % 60;
		} else {
			min = 0;
			sec = remaining;
		}

		ast_stream_and_wait(bridge_channel->chan, "vm-youhave", AST_DIGIT_NONE);
		if (min) {
			ast_say_number(bridge_channel->chan, min, AST_DIGIT_NONE,
				ast_channel_language(bridge_channel->chan), NULL);
			ast_stream_and_wait(bridge_channel->chan, "queue-minutes", AST_DIGIT_NONE);
		}
		if (sec) {
			ast_say_number(bridge_channel->chan, sec, AST_DIGIT_NONE,
				ast_channel_language(bridge_channel->chan), NULL);
			ast_stream_and_wait(bridge_channel->chan, "queue-seconds", AST_DIGIT_NONE);
		}
	} else {
		ast_stream_and_wait(bridge_channel->chan, file, AST_DIGIT_NONE);
	}

	/*
	 * It may be necessary to resume music on hold after we finish
	 * playing the announcment.
	 */
	if (ast_test_flag(ast_channel_flags(bridge_channel->chan), AST_FLAG_MOH)) {
		const char *latest_musicclass;

		ast_channel_lock(bridge_channel->chan);
		latest_musicclass = ast_strdupa(ast_channel_latest_musicclass(bridge_channel->chan));
		ast_channel_unlock(bridge_channel->chan);
		ast_moh_start(bridge_channel->chan, latest_musicclass, NULL);
	}
}
Beispiel #4
0
void ast_ari_bridges_start_moh(struct ast_variable *headers,
	struct ast_ari_bridges_start_moh_args *args,
	struct ast_ari_response *response)
{
	RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
	struct ast_channel *moh_channel;
	const char *moh_class = args->moh_class;

	if (!bridge) {
		/* The response is provided by find_bridge() */
		return;
	}

	moh_channel = stasis_app_bridge_moh_channel(bridge);
	if (!moh_channel) {
		ast_ari_response_alloc_failed(response);
		return;
	}

	ast_moh_start(moh_channel, moh_class, NULL);

	ast_ari_response_no_content(response);

}
Beispiel #5
0
static int conf_run(struct ast_channel *chan, struct ast_conference *conf, int confflags)
{
	struct ast_conference *prev=NULL, *cur;
	struct ast_conf_user *user = malloc(sizeof(struct ast_conf_user));
	int fd;
	struct zt_confinfo ztc;
	struct ast_frame *f;
	struct ast_channel *c;
	struct ast_frame fr;
	int outfd;
	int ms;
	int nfds;
	int res;
	int flags;
	int retryzap;
	int origfd;
	int musiconhold = 0;
	int firstpass = 0;
	int origquiet;
	int ret = -1;
	int x;
	int menu_active = 0;
	int using_pseudo = 0;

	struct ast_app *app;
	char *agifile;
	char *agifiledefault = "conf-background.agi";
	char meetmesecs[30] = "";
	char exitcontext[AST_MAX_EXTENSION] = "";
	int dtmf;

	ZT_BUFFERINFO bi;
	char __buf[CONF_SIZE + AST_FRIENDLY_OFFSET];
	char *buf = __buf + AST_FRIENDLY_OFFSET;
	
	if (!user) {
		ast_log(LOG_ERROR, "Out of memory\n");
		return(ret);
	}
	memset(user, 0, sizeof(struct ast_conf_user));

	user->user_no = 0; /* User number 0 means starting up user! (dead - not in the list!) */

	time(&user->jointime);

	if (conf->locked) {
		/* Sorry, but this confernce is locked! */	
		if (!ast_streamfile(chan, "conf-locked", chan->language))
			ast_waitstream(chan, "");
		goto outrun;
	}
	conf->users++;
	if (confflags & CONFFLAG_MARKEDUSER)
		conf->markedusers++;
      
   	ast_mutex_lock(&conflock);
	if (conf->firstuser == NULL) {
		/* Fill the first new User struct */
		user->user_no = 1;
		user->nextuser = NULL;
		user->prevuser = NULL;
		conf->firstuser = user;
		conf->lastuser = user;
	} else {
		/* Fill the new user struct */	
		user->user_no = conf->lastuser->user_no + 1; 
		user->prevuser = conf->lastuser;
		user->nextuser = NULL;
		if (conf->lastuser->nextuser != NULL) {
			ast_log(LOG_WARNING, "Error in User Management!\n");
			ast_mutex_unlock(&conflock);
			goto outrun;
		} else {
			conf->lastuser->nextuser = user;
			conf->lastuser = user;
		}
	}
	user->chan = chan;
	user->userflags = confflags;
	user->adminflags = 0;
	ast_mutex_unlock(&conflock);
	origquiet = confflags & CONFFLAG_QUIET;
	if (confflags & CONFFLAG_EXIT_CONTEXT) {
		if ((agifile = pbx_builtin_getvar_helper(chan, "MEETME_EXIT_CONTEXT"))) 
			strncpy(exitcontext, agifile, sizeof(exitcontext) - 1);
		else if (!ast_strlen_zero(chan->macrocontext)) 
			strncpy(exitcontext, chan->macrocontext, sizeof(exitcontext) - 1);
		else
			strncpy(exitcontext, chan->context, sizeof(exitcontext) - 1);
	}
	while((confflags & CONFFLAG_WAITMARKED) && (conf->markedusers == 0)) {
		confflags &= ~CONFFLAG_QUIET;
		confflags |= origquiet;
		/* XXX Announce that we're waiting on the conference lead to join */
		if (!(confflags & CONFFLAG_QUIET)) {
			res = ast_streamfile(chan, "vm-dialout", chan->language);
			if (!res)
				res = ast_waitstream(chan, "");
		} else
			res = 0;
		/* If we're waiting with hold music, set to silent mode */
		if (!res) {
			confflags |= CONFFLAG_QUIET;
			ast_moh_start(chan, NULL);
			res = ast_safe_sleep_conditional(chan, 60000, confnonzero, conf);
			ast_moh_stop(chan);
		}
		if (res < 0) {
			ast_log(LOG_DEBUG, "Got hangup on '%s' already\n", chan->name);
			goto outrun;
		}
	}
	
	if (!(confflags & CONFFLAG_QUIET) && conf->users == 1) {
		if (!ast_streamfile(chan, "conf-onlyperson", chan->language)) {
			if (ast_waitstream(chan, "") < 0)
				goto outrun;
		} else
			goto outrun;
	}

	/* Set it into linear mode (write) */
	if (ast_set_write_format(chan, AST_FORMAT_SLINEAR) < 0) {
		ast_log(LOG_WARNING, "Unable to set '%s' to write linear mode\n", chan->name);
		goto outrun;
	}

	/* Set it into linear mode (read) */
	if (ast_set_read_format(chan, AST_FORMAT_SLINEAR) < 0) {
		ast_log(LOG_WARNING, "Unable to set '%s' to read linear mode\n", chan->name);
		goto outrun;
	}
	ast_indicate(chan, -1);
	retryzap = strcasecmp(chan->type, "Zap");
zapretry:
	origfd = chan->fds[0];
	if (retryzap) {
		fd = open("/dev/zap/pseudo", O_RDWR);
		if (fd < 0) {
			ast_log(LOG_WARNING, "Unable to open pseudo channel: %s\n", strerror(errno));
			goto outrun;
		}
		using_pseudo = 1;
		/* Make non-blocking */
		flags = fcntl(fd, F_GETFL);
		if (flags < 0) {
			ast_log(LOG_WARNING, "Unable to get flags: %s\n", strerror(errno));
			close(fd);
			goto outrun;
		}
		if (fcntl(fd, F_SETFL, flags | O_NONBLOCK)) {
			ast_log(LOG_WARNING, "Unable to set flags: %s\n", strerror(errno));
			close(fd);
			goto outrun;
		}
		/* Setup buffering information */
		memset(&bi, 0, sizeof(bi));
		bi.bufsize = CONF_SIZE/2;
		bi.txbufpolicy = ZT_POLICY_IMMEDIATE;
		bi.rxbufpolicy = ZT_POLICY_IMMEDIATE;
		bi.numbufs = 4;
		if (ioctl(fd, ZT_SET_BUFINFO, &bi)) {
			ast_log(LOG_WARNING, "Unable to set buffering information: %s\n", strerror(errno));
			close(fd);
			goto outrun;
		}
		x = 1;
		if (ioctl(fd, ZT_SETLINEAR, &x)) {
			ast_log(LOG_WARNING, "Unable to set linear mode: %s\n", strerror(errno));
			close(fd);
			goto outrun;
		}
		nfds = 1;
	} else {
		/* XXX Make sure we're not running on a pseudo channel XXX */
		fd = chan->fds[0];
		nfds = 0;
	}
	memset(&ztc, 0, sizeof(ztc));
	/* Check to see if we're in a conference... */
	ztc.chan = 0;	
	if (ioctl(fd, ZT_GETCONF, &ztc)) {
		ast_log(LOG_WARNING, "Error getting conference\n");
		close(fd);
		goto outrun;
	}
	if (ztc.confmode) {
		/* Whoa, already in a conference...  Retry... */
		if (!retryzap) {
			ast_log(LOG_DEBUG, "Zap channel is in a conference already, retrying with pseudo\n");
			retryzap = 1;
			goto zapretry;
		}
	}
	memset(&ztc, 0, sizeof(ztc));
	/* Add us to the conference */
	ztc.chan = 0;	
	ztc.confno = conf->zapconf;
	if (confflags & CONFFLAG_MONITOR)
		ztc.confmode = ZT_CONF_CONFMON | ZT_CONF_LISTENER;
	else if (confflags & CONFFLAG_TALKER)
		ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER;
	else 
		ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;

	if (ioctl(fd, ZT_SETCONF, &ztc)) {
		ast_log(LOG_WARNING, "Error setting conference\n");
		close(fd);
		goto outrun;
	}
	ast_log(LOG_DEBUG, "Placed channel %s in ZAP conf %d\n", chan->name, conf->zapconf);

	manager_event(EVENT_FLAG_CALL, "MeetmeJoin", 
			"Channel: %s\r\n"
			"Uniqueid: %s\r\n"
			"Meetme: %s\r\n"
			"Usernum: %i\r\n",
			chan->name, chan->uniqueid, conf->confno, user->user_no);

	if (!firstpass && !(confflags & CONFFLAG_MONITOR) && !(confflags & CONFFLAG_ADMIN)) {
		firstpass = 1;
		if (!(confflags & CONFFLAG_QUIET))
			conf_play(conf, ENTER);
	}

	if (confflags & CONFFLAG_AGI) {

		/* Get name of AGI file to run from $(MEETME_AGI_BACKGROUND)
		  or use default filename of conf-background.agi */

		agifile = pbx_builtin_getvar_helper(chan,"MEETME_AGI_BACKGROUND");
		if (!agifile)
			agifile = agifiledefault;

		if (!strcasecmp(chan->type,"Zap")) {
			/*  Set CONFMUTE mode on Zap channel to mute DTMF tones */
			x = 1;
			ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
		}
		/* Find a pointer to the agi app and execute the script */
		app = pbx_findapp("agi");
		if (app) {
			ret = pbx_exec(chan, app, agifile, 1);
		} else {
			ast_log(LOG_WARNING, "Could not find application (agi)\n");
			ret = -2;
		}
		if (!strcasecmp(chan->type,"Zap")) {
			/*  Remove CONFMUTE mode on Zap channel */
			x = 0;
			ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
		}
	} else {
		if (!strcasecmp(chan->type,"Zap") && (confflags & CONFFLAG_STARMENU)) {
			/*  Set CONFMUTE mode on Zap channel to mute DTMF tones when the menu is enabled */
			x = 1;
			ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
		}	
		for(;;) {
			outfd = -1;
			ms = -1;
			c = ast_waitfor_nandfds(&chan, 1, &fd, nfds, NULL, &outfd, &ms);
			
			/* Update the struct with the actual confflags */
			user->userflags = confflags;
			
			/* trying to add moh for single person conf */
			if (confflags & CONFFLAG_MOH) {
				if (conf->users == 1) {
					if (musiconhold == 0) {
						ast_moh_start(chan, NULL);
						musiconhold = 1;
					} 
				} else {
					if (musiconhold) {
						ast_moh_stop(chan);
						musiconhold = 0;
					}
				}
			}
			
			/* Leave if the last marked user left */
			if (conf->markedusers == 0 && confflags & CONFFLAG_MARKEDEXIT) {
				ret = -1;
				break;
			}
	
			/* Check if the admin changed my modes */
			if (user->adminflags) {			
				/* Set the new modes */
				if ((user->adminflags & ADMINFLAG_MUTED) && (ztc.confmode & ZT_CONF_TALKER)) {
					ztc.confmode ^= ZT_CONF_TALKER;
					if (ioctl(fd, ZT_SETCONF, &ztc)) {
						ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
						ret = -1;
						break;
					}
				}
				if (!(user->adminflags & ADMINFLAG_MUTED) && !(confflags & CONFFLAG_MONITOR) && !(ztc.confmode & ZT_CONF_TALKER)) {
					ztc.confmode |= ZT_CONF_TALKER;
					if (ioctl(fd, ZT_SETCONF, &ztc)) {
						ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
						ret = -1;
						break;
					}
				}
				if (user->adminflags & ADMINFLAG_KICKME) {
					//You have been kicked.
					if (!ast_streamfile(chan, "conf-kicked", chan->language))
						ast_waitstream(chan, "");
					ret = 0;
					break;
				}
			} else if (!(confflags & CONFFLAG_MONITOR) && !(ztc.confmode & ZT_CONF_TALKER)) {
				ztc.confmode |= ZT_CONF_TALKER;
				if (ioctl(fd, ZT_SETCONF, &ztc)) {
					ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
					ret = -1;
					break;
				}
			}

			if (c) {
				if (c->fds[0] != origfd) {
					if (using_pseudo) {
						/* Kill old pseudo */
						close(fd);
					}
					ast_log(LOG_DEBUG, "Ooh, something swapped out under us, starting over\n");
					retryzap = 0;
					using_pseudo = 0;
					goto zapretry;
				}
				f = ast_read(c);
				if (!f) 
					break;
				if ((f->frametype == AST_FRAME_DTMF) && (confflags & CONFFLAG_EXIT_CONTEXT)) {
					char tmp[2];
					tmp[0] = f->subclass;
					tmp[1] = '\0';
					if (ast_exists_extension(chan, exitcontext, tmp, 1, chan->callerid)) {
						strncpy(chan->context, exitcontext, sizeof(chan->context) - 1);
						strncpy(chan->exten, tmp, sizeof(chan->exten) - 1);
						chan->priority = 0;
						ret = 0;
						break;
					}
				} else if ((f->frametype == AST_FRAME_DTMF) && (f->subclass == '#') && (confflags & CONFFLAG_POUNDEXIT)) {
					ret = 0;
					break;
				} else if (((f->frametype == AST_FRAME_DTMF) && (f->subclass == '*') && (confflags & CONFFLAG_STARMENU)) || ((f->frametype == AST_FRAME_DTMF) && menu_active)) {
					if (musiconhold) {
			   			ast_moh_stop(chan);
					}
					if ((confflags & CONFFLAG_ADMIN)) {
						/* Admin menu */
						if (!menu_active) {
							menu_active = 1;
							/* Record this sound! */
							if (!ast_streamfile(chan, "conf-adminmenu", chan->language))
								dtmf = ast_waitstream(chan, AST_DIGIT_ANY);
							else
								dtmf = 0;
						} else 
							dtmf = f->subclass;
						if (dtmf) {
							switch(dtmf) {
								case '1': /* Un/Mute */
									menu_active = 0;
		 							if (ztc.confmode & ZT_CONF_TALKER) {
	 						       		ztc.confmode = ZT_CONF_CONF | ZT_CONF_LISTENER;
	 						       		confflags |= CONFFLAG_MONITOR ^ CONFFLAG_TALKER;
									} else {
										ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
										confflags ^= CONFFLAG_MONITOR | CONFFLAG_TALKER;
									}
									if (ioctl(fd, ZT_SETCONF, &ztc)) {
										ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
										ret = -1;
										break;
									}
									if (ztc.confmode & ZT_CONF_TALKER) {
										if (!ast_streamfile(chan, "conf-unmuted", chan->language))
											ast_waitstream(chan, "");
									} else {
										if (!ast_streamfile(chan, "conf-muted", chan->language))
											ast_waitstream(chan, "");
									}
									break;
								case '2': /* Un/Lock the Conference */
									menu_active = 0;
									if (conf->locked) {
										conf->locked = 0;
										if (!ast_streamfile(chan, "conf-unlockednow", chan->language))
											ast_waitstream(chan, "");
									} else {
										conf->locked = 1;
										if (!ast_streamfile(chan, "conf-lockednow", chan->language))
											ast_waitstream(chan, "");
									}
									break;
								default:
									menu_active = 0;
									/* Play an error message! */
									if (!ast_streamfile(chan, "conf-errormenu", chan->language))
										ast_waitstream(chan, "");
									break;
							}
						}
					} else {
						/* User menu */
						if (!menu_active) {
							menu_active = 1;
							/* Record this sound! */
							if (!ast_streamfile(chan, "conf-usermenu", chan->language))
								dtmf = ast_waitstream(chan, AST_DIGIT_ANY);
							else
								dtmf = 0;
						} else 
							dtmf = f->subclass;
						if (dtmf) {
							switch(dtmf) {
								case '1': /* Un/Mute */
									menu_active = 0;
		 							if (ztc.confmode & ZT_CONF_TALKER) {
	 						       		ztc.confmode = ZT_CONF_CONF | ZT_CONF_LISTENER;
	 						       		confflags |= CONFFLAG_MONITOR ^ CONFFLAG_TALKER;
									} else if (!(user->adminflags & ADMINFLAG_MUTED)) {
										ztc.confmode = ZT_CONF_CONF | ZT_CONF_TALKER | ZT_CONF_LISTENER;
										confflags ^= CONFFLAG_MONITOR | CONFFLAG_TALKER;
									}
									if (ioctl(fd, ZT_SETCONF, &ztc)) {
										ast_log(LOG_WARNING, "Error setting conference - Un/Mute \n");
										ret = -1;
										break;
									}
									if (ztc.confmode & ZT_CONF_TALKER) {
										if (!ast_streamfile(chan, "conf-unmuted", chan->language))
											ast_waitstream(chan, "");
									} else {
										if (!ast_streamfile(chan, "conf-muted", chan->language))
											ast_waitstream(chan, "");
									}
									break;
								default:
									menu_active = 0;
									/* Play an error message! */
									if (!ast_streamfile(chan, "conf-errormenu", chan->language))
										ast_waitstream(chan, "");
									break;
							}
						}
					}
					if (musiconhold) {
			   			ast_moh_start(chan, NULL);
					}
				} else if (using_pseudo) {
					if (f->frametype == AST_FRAME_VOICE) {
						if (f->subclass == AST_FORMAT_SLINEAR) {
							/* Carefully write */
							careful_write(fd, f->data, f->datalen);
						} else
							ast_log(LOG_WARNING, "Huh?  Got a non-linear (%d) frame in the conference\n", f->subclass);
					}
				}
				ast_frfree(f);
			} else if (outfd > -1) {
				res = read(outfd, buf, CONF_SIZE);
				if (res > 0) {
					memset(&fr, 0, sizeof(fr));
					fr.frametype = AST_FRAME_VOICE;
					fr.subclass = AST_FORMAT_SLINEAR;
					fr.datalen = res;
					fr.samples = res/2;
					fr.data = buf;
					fr.offset = AST_FRIENDLY_OFFSET;
					if (ast_write(chan, &fr) < 0) {
						ast_log(LOG_WARNING, "Unable to write frame to channel: %s\n", strerror(errno));
						/* break; */
					}
				} else 
					ast_log(LOG_WARNING, "Failed to read frame: %s\n", strerror(errno));
			}
		}
	}
	if (using_pseudo)
		close(fd);
	else {
		/* Take out of conference */
		/* Add us to the conference */
		ztc.chan = 0;	
		ztc.confno = 0;
		ztc.confmode = 0;
		if (ioctl(fd, ZT_SETCONF, &ztc)) {
			ast_log(LOG_WARNING, "Error setting conference\n");
		}
	}
	if (!(confflags & CONFFLAG_QUIET) && !(confflags & CONFFLAG_MONITOR) && !(confflags & CONFFLAG_ADMIN))
		conf_play(conf, LEAVE);

outrun:
	ast_mutex_lock(&conflock);
	if (user->user_no) { /* Only cleanup users who really joined! */
		manager_event(EVENT_FLAG_CALL, "MeetmeLeave", 
			"Channel: %s\r\n"
			"Uniqueid: %s\r\n"
			"Meetme: %s\r\n"
			"Usernum: %i\r\n",
			chan->name, chan->uniqueid, conf->confno, user->user_no);
		prev = NULL;
		conf->users--;
		if (confflags & CONFFLAG_MARKEDUSER) 
			conf->markedusers--;
		cur = confs;
		if (!conf->users) {
			/* No more users -- close this one out */
			while(cur) {
				if (cur == conf) {
					if (prev)
						prev->next = conf->next;
					else
						confs = conf->next;
					break;
				}
				prev = cur;
				cur = cur->next;
			}
			if (!cur) 
				ast_log(LOG_WARNING, "Conference not found\n");
			if (conf->chan)
				ast_hangup(conf->chan);
			else
				close(conf->fd);
			free(conf);
		} else {
			/* Remove the user struct */ 
			if (user == conf->firstuser) {
				if (user->nextuser) {
					/* There is another entry */
					user->nextuser->prevuser = NULL;
				} else {
					/* We are the only entry */
					conf->lastuser = NULL;
				}
				/* In either case */
				conf->firstuser = user->nextuser;
			} else if (user == conf->lastuser){
				if (user->prevuser)
					user->prevuser->nextuser = NULL;
				else
					ast_log(LOG_ERROR, "Bad bad bad!  We're the last, not the first, but nobody before us??\n");
				conf->lastuser = user->prevuser;
			} else {
				if (user->nextuser)
					user->nextuser->prevuser = user->prevuser;
				else
					ast_log(LOG_ERROR, "Bad! Bad! Bad! user->nextuser is NULL but we're not the end!\n");
				if (user->prevuser)
					user->prevuser->nextuser = user->nextuser;
				else
					ast_log(LOG_ERROR, "Bad! Bad! Bad! user->prevuser is NULL but we're not the beginning!\n");
			}
		}
		/* Return the number of seconds the user was in the conf */
		snprintf(meetmesecs, sizeof(meetmesecs), "%i", (int) (time(NULL) - user->jointime));
		pbx_builtin_setvar_helper(chan, "MEETMESECS", meetmesecs);
	}
	free(user);
	ast_mutex_unlock(&conflock);
	return ret;
}
static int local_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
{
	struct local_pvt *p = ast_channel_tech_pvt(ast);
	int res = 0;
	struct ast_frame f = { AST_FRAME_CONTROL, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for local_queue_frame */

	/* If this is an MOH hold or unhold, do it on the Local channel versus real channel */
	if (!ast_test_flag(p, LOCAL_MOH_PASSTHRU) && condition == AST_CONTROL_HOLD) {
		ast_moh_start(ast, data, NULL);
	} else if (!ast_test_flag(p, LOCAL_MOH_PASSTHRU) && condition == AST_CONTROL_UNHOLD) {
		ast_moh_stop(ast);
	} else if (condition == AST_CONTROL_CONNECTED_LINE || condition == AST_CONTROL_REDIRECTING) {
		struct ast_channel *this_channel;
		struct ast_channel *the_other_channel;
		/* A connected line update frame may only contain a partial amount of data, such
		 * as just a source, or just a ton, and not the full amount of information. However,
		 * the collected information is all stored in the outgoing channel's connectedline
		 * structure, so when receiving a connected line update on an outgoing local channel,
		 * we need to transmit the collected connected line information instead of whatever
		 * happens to be in this control frame. The same applies for redirecting information, which
		 * is why it is handled here as well.*/
		ao2_lock(p);
		isoutbound = IS_OUTBOUND(ast, p);
		if (isoutbound) {
			this_channel = p->chan;
			the_other_channel = p->owner;
		} else {
			this_channel = p->owner;
			the_other_channel = p->chan;
		}
		if (the_other_channel) {
			unsigned char frame_data[1024];
			if (condition == AST_CONTROL_CONNECTED_LINE) {
				if (isoutbound) {
					ast_connected_line_copy_to_caller(ast_channel_caller(the_other_channel), ast_channel_connected(this_channel));
				}
				f.datalen = ast_connected_line_build_data(frame_data, sizeof(frame_data), ast_channel_connected(this_channel), NULL);
			} else {
				f.datalen = ast_redirecting_build_data(frame_data, sizeof(frame_data), ast_channel_redirecting(this_channel), NULL);
			}
			f.subclass.integer = condition;
			f.data.ptr = frame_data;
			res = local_queue_frame(p, isoutbound, &f, ast, 1);
		}
		ao2_unlock(p);
	} else {
		/* Queue up a frame representing the indication as a control frame */
		ao2_lock(p);
		/*
		 * Block -1 stop tones events if we are to be optimized out.  We
		 * don't need a flurry of these events on a local channel chain
		 * when initially connected to slow the optimization process.
		 */
		if (0 <= condition || ast_test_flag(p, LOCAL_NO_OPTIMIZATION)) {
			isoutbound = IS_OUTBOUND(ast, p);
			f.subclass.integer = condition;
			f.data.ptr = (void *) data;
			f.datalen = datalen;
			res = local_queue_frame(p, isoutbound, &f, ast, 1);

			if (!res && (condition == AST_CONTROL_T38_PARAMETERS) &&
			    (datalen == sizeof(struct ast_control_t38_parameters))) {
				const struct ast_control_t38_parameters *parameters = data;
				
				if (parameters->request_response == AST_T38_REQUEST_PARMS) {
					res = AST_T38_REQUEST_PARMS;
				}
			}
		} else {
			ast_debug(4, "Blocked indication %d\n", condition);
		}
		ao2_unlock(p);
	}

	ao2_ref(p, -1);
	return res;
}
Beispiel #7
0
/*!
 * \internal
 * \brief Handle COLP and redirecting conditions.
 * \since 12.0.0
 *
 * \param p Unreal private structure.
 * \param ast Channel indicating the condition.
 * \param condition What is being indicated.
 *
 * \retval 0 on success.
 * \retval -1 on error.
 */
static int unreal_colp_redirect_indicate(struct ast_unreal_pvt *p, struct ast_channel *ast, int condition)
{
	struct ast_channel *my_chan;
	struct ast_channel *my_owner;
	struct ast_channel *this_channel;
	struct ast_channel *the_other_channel;
	int isoutbound;
	int res = 0;
	unsigned char frame_data[1024];
	struct ast_frame f = {
		.frametype = AST_FRAME_CONTROL,
		.subclass.integer = condition,
		.data.ptr = frame_data,
	};

	/*
	 * A connected line update frame may only contain a partial
	 * amount of data, such as just a source, or just a ton, and not
	 * the full amount of information.  However, the collected
	 * information is all stored in the outgoing channel's
	 * connectedline structure, so when receiving a connected line
	 * update on an outgoing unreal channel, we need to transmit the
	 * collected connected line information instead of whatever
	 * happens to be in this control frame.  The same applies for
	 * redirecting information, which is why it is handled here as
	 * well.
	 */
	ast_channel_unlock(ast);
	ast_unreal_lock_all(p, &my_chan, &my_owner);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	if (isoutbound) {
		this_channel = p->chan;
		the_other_channel = p->owner;
	} else {
		this_channel = p->owner;
		the_other_channel = p->chan;
	}
	if (the_other_channel) {
		if (condition == AST_CONTROL_CONNECTED_LINE) {
			ast_connected_line_copy_to_caller(ast_channel_caller(the_other_channel),
				ast_channel_connected(this_channel));
			f.datalen = ast_connected_line_build_data(frame_data, sizeof(frame_data),
				ast_channel_connected(this_channel), NULL);
		} else {
			f.datalen = ast_redirecting_build_data(frame_data, sizeof(frame_data),
				ast_channel_redirecting(this_channel), NULL);
		}
	}
	if (my_chan) {
		ast_channel_unlock(my_chan);
		ast_channel_unref(my_chan);
	}
	if (my_owner) {
		ast_channel_unlock(my_owner);
		ast_channel_unref(my_owner);
	}
	if (the_other_channel) {
		res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	}
	ao2_unlock(p);
	ast_channel_lock(ast);

	return res;
}

int ast_unreal_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = 0;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */

	switch (condition) {
	case AST_CONTROL_CONNECTED_LINE:
	case AST_CONTROL_REDIRECTING:
		res = unreal_colp_redirect_indicate(p, ast, condition);
		break;
	case AST_CONTROL_HOLD:
		if (ast_test_flag(p, AST_UNREAL_MOH_INTERCEPT)) {
			ast_moh_start(ast, data, NULL);
			break;
		}
		res = unreal_queue_indicate(p, ast, condition, data, datalen);
		break;
	case AST_CONTROL_UNHOLD:
		if (ast_test_flag(p, AST_UNREAL_MOH_INTERCEPT)) {
			ast_moh_stop(ast);
			break;
		}
		res = unreal_queue_indicate(p, ast, condition, data, datalen);
		break;
	default:
		res = unreal_queue_indicate(p, ast, condition, data, datalen);
		break;
	}

	ao2_ref(p, -1);
	return res;
}

int ast_unreal_digit_begin(struct ast_channel *ast, char digit)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_DTMF_BEGIN, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.subclass.integer = digit;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);

	return res;
}

int ast_unreal_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_DTMF_END, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.subclass.integer = digit;
	f.len = duration;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);

	return res;
}

int ast_unreal_sendtext(struct ast_channel *ast, const char *text)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_TEXT, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.data.ptr = (char *) text;
	f.datalen = strlen(text) + 1;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);
	return res;
}

int ast_unreal_sendhtml(struct ast_channel *ast, int subclass, const char *data, int datalen)
{
	struct ast_unreal_pvt *p = ast_channel_tech_pvt(ast);
	int res = -1;
	struct ast_frame f = { AST_FRAME_HTML, };
	int isoutbound;

	if (!p) {
		return -1;
	}

	ao2_ref(p, 1); /* ref for unreal_queue_frame */
	ao2_lock(p);
	isoutbound = AST_UNREAL_IS_OUTBOUND(ast, p);
	f.subclass.integer = subclass;
	f.data.ptr = (char *)data;
	f.datalen = datalen;
	res = unreal_queue_frame(p, isoutbound, &f, ast, 0);
	ao2_unlock(p);
	ao2_ref(p, -1);

	return res;
}

void ast_unreal_call_setup(struct ast_channel *semi1, struct ast_channel *semi2)
{
	struct ast_var_t *varptr;
	struct ast_var_t *clone_var;

	/*
	 * Note that cid_num and cid_name aren't passed in the
	 * ast_channel_alloc calls in ast_unreal_new_channels().  It's
	 * done here instead.
	 */
	ast_party_redirecting_copy(ast_channel_redirecting(semi2), ast_channel_redirecting(semi1));

	ast_party_dialed_copy(ast_channel_dialed(semi2), ast_channel_dialed(semi1));

	ast_connected_line_copy_to_caller(ast_channel_caller(semi2), ast_channel_connected(semi1));
	ast_connected_line_copy_from_caller(ast_channel_connected(semi2), ast_channel_caller(semi1));

	ast_channel_language_set(semi2, ast_channel_language(semi1));
	ast_channel_accountcode_set(semi2, ast_channel_accountcode(semi1));
	ast_channel_musicclass_set(semi2, ast_channel_musicclass(semi1));

	ast_channel_cc_params_init(semi2, ast_channel_get_cc_config_params(semi1));

	/*
	 * Make sure we inherit the AST_CAUSE_ANSWERED_ELSEWHERE if it's
	 * set on the queue/dial call request in the dialplan.
	 */
	if (ast_channel_hangupcause(semi1) == AST_CAUSE_ANSWERED_ELSEWHERE) {
		ast_channel_hangupcause_set(semi2, AST_CAUSE_ANSWERED_ELSEWHERE);
	}

	/*
	 * Copy the channel variables from the semi1 channel to the
	 * outgoing channel.
	 *
	 * Note that due to certain assumptions, they MUST be in the
	 * same order.
	 */
	AST_LIST_TRAVERSE(ast_channel_varshead(semi1), varptr, entries) {
		clone_var = ast_var_assign(varptr->name, varptr->value);
		if (clone_var) {
			AST_LIST_INSERT_TAIL(ast_channel_varshead(semi2), clone_var, entries);
		}
	}
	ast_channel_datastore_inherit(semi1, semi2);
}
int process_incoming(struct ast_conf_member *member, struct ast_frame *f) 
{
    int res;

    // Play our sound queue, if not empty. 
    if (member->soundq) {
	// Free the frame.
	if ( f != NULL ) {
	    ast_frfree( f ) ;
	    f = NULL ;
	}
	res = conf_play_soundqueue( member ); 
	if (res != 0) {
	    queue_incoming_silent_frame(member,2);
	    // send the DTMF event to the MGR interface..
	    manager_event(
		EVENT_FLAG_CALL,
		APP_CONFERENCE_MANID"DTMF",
		"Channel: %s\r\n"
		"Key: %c\r\n",
		member->channel_name,
		res
	    ) ;
	    parse_dtmf_option( member, res);
	}
	return res;
    }

    //
    // Moderator forces MOH management
    //

    if ( member->force_on_hold == 1 ) {
	ast_moh_start(member->chan,"");
	member->force_on_hold = 0 ;
    } 
    else if ( member->force_on_hold == -1 ) {
	ast_moh_stop(member->chan);
	ast_generator_activate(member->chan,&membergen,member);
	member->force_on_hold = 0 ;
    } 

    //
    // MOH When the user is alone in the conference
    //
    if (member->conf != NULL) {
        if ( member->conf->membercount == 1 && 
    	 member->is_on_hold == 0 && 
    	 member->skip_moh_when_alone == 0 
           ) {
    	ast_moh_start(member->chan,"");
    	member->is_on_hold = 1 ;
    	return 0;
        }
    
        if ( member->conf->membercount > 1 && 
    	 member->is_on_hold == 1 && 
    	 member->skip_moh_when_alone == 0 
           ) {
    	ast_moh_stop(member->chan);
    	ast_generator_activate(member->chan,&membergen,member);
    	member->is_on_hold = 0 ;
    	return 0;
        }
    }

    if ( member->force_remove_flag == 1 ) {
        return 0;
    }

    // If we don't have any frame to parse, then return
    if ( f == NULL ) {
	return 0;
    }

    // Actions based on the content of the frame
    if ( f->frametype == AST_FRAME_DTMF && member->manage_dtmf )
    {	
	queue_incoming_silent_frame(member,2);

	// send the DTMF event to the MGR interface..
	manager_event(
		EVENT_FLAG_CALL,
		APP_CONFERENCE_MANID"DTMF",
		"Channel: %s\r\n"
		"Key: %c\r\n",
		member->channel_name,
		f->subclass
	) ;

	parse_dtmf_option( member, f->subclass);

	ast_frfree(f);
	f = NULL;
    }
    else if (  (member->type == MEMBERTYPE_LISTENER) || (member->talk_mute) )
    {
	// this is a listen-only user, or it's muted. 	
	// Ignore the frame
	ast_frfree( f ) ;
	f = NULL ;
    }
    else if ( f->frametype == AST_FRAME_VOICE ) 
    {			
	// ********************************************************************************** VOICE
	int old_speaking_state = member->is_speaking;

#if ENABLE_VAD
	if ( member->talk_mute == 1 ) member->is_speaking = 0;

	if ( member->enable_vad 
	     && f->subclass == AST_FORMAT_SLINEAR && f->samples > 0 
	   )
	{
	    // and if it's time to check what the member is doing
	    if ( member->skip_voice_detection <= 0 || member->is_speaking ) 
	    {
		int rees;
		rees = vad_is_talk( f->data, f->datalen, &member->silence_nr, 20);
		// send the frame to the preprocessor
		if ( rees != 0 )
		{
		    // voice detected, reset skip count
		    if ( member->framelen != 0 )
			member->skip_voice_detection = (AST_CONF_SKIP_MS_AFTER_VOICE_DETECTION / member->framelen);
		    else 
			// Let's suppose that 20ms as a framelen is not too different from the real situation
			member->skip_voice_detection = 20;
		    member->is_speaking=1;
		}
		else {
		    // member is silent
		    member->is_speaking=0;
		    if ( member->framelen != 0 )
			member->skip_voice_detection = ( AST_CONF_SKIP_MS_WHEN_SILENT / member->framelen );
		    else 
			member->skip_voice_detection = 5;
		}

	    }
	    --member->skip_voice_detection ;
	}

	if (old_speaking_state != member ->is_speaking)
	    send_state_change_notifications(member);
#endif

	// volume of the frame is modified after the VAD has been done
	if (member->talk_volume != 0) 
	    set_talk_volume(member, f, 1);

	if ( member->is_speaking && queue_incoming_frame( member, f ) != 0 )
	    ast_log( AST_CONF_DEBUG, "dropped incoming frame, channel => %s\n", member->channel_name ) ;

	// free the original frame
	ast_frfree( f ) ;
	f = NULL ;
    }
    else if ( f->frametype == AST_FRAME_CONTROL && f->subclass == AST_CONTROL_HANGUP ) 
    {
	// hangup received, queue silence && free the frame 
	queue_incoming_silent_frame(member,2);
	ast_frfree( f ) ;
	f = NULL ;
    }
    else
    {
	// Unmanaged frame
#if  ( APP_NCONFERENCE_DEBUG == 1 )
	ast_log(LOG_WARNING,"Freeing unknown frame: type %d  member %s \n", f->frametype, member->chan->name );
#endif
	ast_frfree( f ) ;
	f = NULL ;
    }

    return 0;
}