#include "main.h"
+/* enable to test conference mixing, even if only two members are bridged */
+//#define TEST_CONFERENCE 1
+
#define SHORT_MIN -32768
#define SHORT_MAX 32767
unsigned int port_serial = 1; /* must be 1, because 0== no port */
+struct port_bridge *p_bridge_first;
+
+static void remove_bridge(struct port_bridge *bridge, class Port *port);
/* free epointlist relation
*/
/*
* port constructor
*/
-Port::Port(int type, const char *portname, struct port_settings *settings)
+Port::Port(int type, const char *portname, struct port_settings *settings, struct interface *interface)
{
class Port *temp, **tempp;
- PDEBUG(DEBUG_PORT, "new port of type %d, name '%s'\n", type, portname);
-
/* initialize object */
if (settings)
memcpy(&p_settings, settings, sizeof(struct port_settings));
memset(&p_settings, 0, sizeof(p_settings));
}
SCPY(p_name, portname);
+ if (interface)
+ SCPY(p_interface_name, interface->name);
p_tone_dir[0] = '\0';
p_type = type;
p_serial = port_serial++;
memset(&p_redirinfo, 0, sizeof(p_redirinfo));
memset(&p_capainfo, 0, sizeof(p_capainfo));
p_echotest = 0;
+ p_bridge = 0;
/* call recording */
p_record = NULL;
+ p_tap = 0;
p_record_type = 0;
p_record_length = 0;
p_record_skip = 0;
p_record_buffer_writep = 0;
p_record_buffer_dir = 0;
+ /* VoOTP */
+#ifdef WITH_VOOTP
+ p_vootp = NULL;
+#endif
+ /* D-O-V */
+ dov_init();
+
/* append port to chain */
next = NULL;
temp = port_first;
*tempp = this;
classuse++;
+
+ PDEBUG(DEBUG_PORT, "new port (%d) of type 0x%x, name '%s' interface '%s'\n", p_serial, type, portname, p_interface_name);
}
class Port *temp, **tempp;
struct lcr_msg *message;
+ PDEBUG(DEBUG_PORT, "removing port (%d) of type 0x%x, name '%s' interface '%s'\n", p_serial, p_type, p_name, p_interface_name);
+
+#ifdef WITH_VOOTP
+ if (p_vootp) {
+ vootp_destroy(p_vootp);
+ p_vootp = NULL;
+ }
+#endif
+
+ if (p_bridge) {
+ PDEBUG(DEBUG_PORT, "Removing us from bridge %u\n", p_bridge->bridge_id);
+ remove_bridge(p_bridge, this);
+ }
+
if (p_record)
close_record(0, 0);
- classuse--;
+ dov_exit();
- PDEBUG(DEBUG_PORT, "removing port of type %d, name '%s'\n", p_type, p_name);
+ classuse--;
/* disconnect port from endpoint */
while(p_epointlist) {
if (name == NULL)
name = "";
- if (!dir && !dir[0])
+ if (!dir || !dir[0])
dir = options.tones_dir; /* just in case we have no PmISDN instance */
/* no counter, no eof, normal speed */
}
+void Port::set_display(const char *text)
+{
+}
+
/*
* set the file in the tone directory for vbox playback
* also set the play_eof-flag
}
-/* endpoint sends messages to the port
- * this is called by the message_epoint inherited by child classes
- * therefor a return=1 means: stop, no more processing
+/* Endpoint sends messages to the port
+ * This is called by the message_epoint, inherited by child classes.
+ * Therefor a return 1 means: "already handled here"
*/
//extern struct lcr_msg *dddebug;
int Port::message_epoint(unsigned int epoint_id, int message_id, union parameter *param)
{
/* check if we got audio data from one remote port */
switch(message_id) {
- case MESSAGE_TONE: /* play tone */
- PDEBUG(DEBUG_PORT, "PORT(%s) isdn port with (caller id %s) setting tone '%s' dir '%s'\n", p_name, p_callerinfo.id, param->tone.name, param->tone.dir);
+ case MESSAGE_TONE: /* play tone */
+ PDEBUG(DEBUG_PORT, "PORT(%s) setting tone '%s' dir '%s'\n", p_name, param->tone.name, param->tone.dir);
set_tone(param->tone.dir,param->tone.name);
- return(1);
+ return 1;
- case MESSAGE_VBOX_TONE: /* play tone of answering machine */
+ case MESSAGE_VBOX_TONE: /* play tone of answering machine */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine tone '%s' '%s'\n", p_name, param->tone.dir, param->tone.name);
set_vbox_tone(param->tone.dir, param->tone.name);
- return(1);
+ return 1;
- case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
+ case MESSAGE_VBOX_PLAY: /* play recording of answering machine */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine file to play '%s' (offset %d seconds)\n", p_name, param->play.file, param->play.offset);
set_vbox_play(param->play.file, param->play.offset);
- return(1);
+ return 1;
- case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
+ case MESSAGE_VBOX_PLAY_SPEED: /* set speed of playback (recording of answering machine) */
PDEBUG(DEBUG_PORT, "PORT(%s) set answering machine playback speed %d (times)\n", p_name, param->speed);
set_vbox_speed(param->speed);
- return(1);
-
+ return 1;
+
+ case MESSAGE_BRIDGE: /* create / join / leave / destroy bridge */
+ PDEBUG(DEBUG_PORT, "PORT(%s) bridging to id %d\n", p_name, param->bridge_id);
+ bridge(param->bridge_id);
+ return 1;
+
+#ifdef WITH_VOOTP
+ case MESSAGE_VOOTP: /* enable / disable VoOTP */
+ PDEBUG(DEBUG_PORT, "PORT(%s) VoOTP enabled: %d\n", p_name, param->vootp.enable);
+ set_vootp(¶m->vootp);
+ return 1;
+#endif
+
+ case MESSAGE_DOV_REQUEST: /* Data-Over-Voice message */
+ PDEBUG(DEBUG_PORT, "PORT(%s) sending data over voice message (len=%d)\n", p_name, param->dov.length);
+ dov_sendmsg(param->dov.data, param->dov.length, (enum dov_type)param->dov.type, param->dov.level);
+ return 1;
+
+ case MESSAGE_DOV_LISTEN: /* Data-Over-Voice listen order */
+ PDEBUG(DEBUG_PORT, "PORT(%s) sending data over voice listen order\n", p_name);
+ dov_listen((enum dov_type)param->dov.type);
+ return 1;
}
- return(0);
+ return 0;
}
char filename[256];
time_t now;
struct tm *now_tm;
+ int __attribute__((__unused__)) ret;
if (!extension) {
PERROR("Port(%d) not an extension\n", p_serial);
case CODEC_MONO:
case CODEC_STEREO:
case CODEC_8BIT:
- fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
+ ret = fwrite(dummyheader, sizeof(dummyheader), 1, p_record);
break;
case CODEC_LAW:
char *p;
struct caller_info callerinfo;
const char *valid_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-!$%&/()=+*;~";
+ int __attribute__((__unused__)) ret;
if (!p_record)
return;
}
i = 0;
while(i < beep) {
- fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
+ ret = fwrite(beep_mono, sizeof(beep_mono), 1, p_record);
i += sizeof(beep_mono);
p_record_length += sizeof(beep_mono);
}
fmt.bits_sample = 8; /* one channel */
break;
}
- fwrite(&fmt, sizeof(fmt), 1, p_record);
+ ret = fwrite(&fmt, sizeof(fmt), 1, p_record);
/* data */
fprintf(p_record, "data%c%c%c%c", (unsigned char)(size&0xff), (unsigned char)((size>>8)&0xff), (unsigned char)((size>>16)&0xff), (unsigned char)(size>>24));
signed short *s;
int free, i, ii;
signed int sample;
+ int __attribute__((__unused__)) ret;
/* no recording */
if (!p_record || !length)
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
- fwrite(write_buffer, 512, 1, p_record);
+ ret = fwrite(write_buffer, 512, 1, p_record);
p_record_length += 512;
break;
i++;
}
}
- fwrite(write_buffer, 1024, 1, p_record);
+ ret = fwrite(write_buffer, 1024, 1, p_record);
p_record_length += 1024;
break;
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
- fwrite(write_buffer, 512, 1, p_record);
+ ret = fwrite(write_buffer, 512, 1, p_record);
p_record_length += 512;
break;
p_record_buffer_readp = (p_record_buffer_readp + 1) & RECORD_BUFFER_MASK;
i++;
}
- fwrite(write_buffer, 256, 1, p_record);
+ ret = fwrite(write_buffer, 256, 1, p_record);
p_record_length += 256;
break;
}
*s++ = sample;
i++;
}
- fwrite(write_buffer, ii<<1, 1, p_record);
+ ret = fwrite(write_buffer, ii<<1, 1, p_record);
p_record_length += (ii<<1);
break;
i++;
}
}
- fwrite(write_buffer, ii<<2, 1, p_record);
+ ret = fwrite(write_buffer, ii<<2, 1, p_record);
p_record_length += (ii<<2);
break;
*d++ = (sample+0x8000) >> 8;
i++;
}
- fwrite(write_buffer, ii, 1, p_record);
+ ret = fwrite(write_buffer, ii, 1, p_record);
p_record_length += ii;
break;
*d++ = audio_s16_to_law[sample & 0xffff];
i++;
}
- fwrite(write_buffer, ii, 1, p_record);
+ ret = fwrite(write_buffer, ii, 1, p_record);
p_record_length += ii;
break;
}
}
+void Port::tap(unsigned char *data, int length, int dir_fromup)
+{
+}
+
void Port::update_rxoff(void)
{
}
{
}
+
+/*
+ * bridge handling
+ */
+
+int bridge_timeout(struct lcr_timer *timer, void *instance, int index);
+
+static void remove_bridge(struct port_bridge *bridge, class Port *port)
+{
+ struct port_bridge **temp = &p_bridge_first;
+ while (*temp) {
+ if (*temp == bridge) {
+ struct port_bridge_member **memberp = &bridge->first, *member;
+
+ /* loop until we are found */
+ while(*memberp) {
+ if ((*memberp)->port == port) {
+ member = *memberp;
+ *memberp = member->next;
+ FREE(member, sizeof(struct port_bridge_member));
+ memuse--;
+#ifndef TEST_CONFERENCE
+ if (bridge->first && bridge->first->next && !bridge->first->next->next) {
+#else
+ if (bridge->first && !bridge->first->next) {
+#endif
+ PDEBUG(DEBUG_PORT, "bridge %u is no conference anymore\n", bridge->bridge_id);
+ del_timer(&bridge->timer);
+ }
+ break;
+ }
+ memberp = &((*memberp)->next);
+ }
+ /* if bridge is empty, remove it */
+ if (bridge->first == NULL) {
+ PDEBUG(DEBUG_PORT, "Remove bridge %u\n", bridge->bridge_id);
+ *temp = bridge->next;
+ FREE(bridge, sizeof(struct port_bridge));
+ memuse--;
+ }
+ return;
+ }
+ temp = &((*temp)->next);
+ }
+ PERROR("Bridge %p not found in list\n", bridge);
+}
+
+void Port::bridge(unsigned int bridge_id)
+{
+ struct port_bridge_member **memberp;
+
+ /* Remove bridge, if we leave bridge or if we join a different bridge. */
+ if (p_bridge && bridge_id != p_bridge->bridge_id) {
+ PDEBUG(DEBUG_PORT, "Remove port %u from bridge %u, because out new bridge is %u\n", p_serial, p_bridge->bridge_id, bridge_id);
+ remove_bridge(p_bridge, this);
+ p_bridge = NULL;
+ }
+
+ /* if we leave bridge */
+ if (!bridge_id)
+ return;
+
+ /* find bridge */
+ if (!p_bridge) {
+ struct port_bridge *temp = p_bridge_first;
+
+ while (temp) {
+ if (temp->bridge_id == bridge_id)
+ break;
+ temp = temp->next;
+ }
+ p_bridge = temp;
+ if (p_bridge)
+ PDEBUG(DEBUG_PORT, "Port %d found existing bridge %u.\n", p_serial, p_bridge->bridge_id);
+ }
+
+ /* create bridge */
+ if (!p_bridge) {
+ struct port_bridge **temp = &p_bridge_first;
+
+ p_bridge = (struct port_bridge *) MALLOC(sizeof(struct port_bridge));
+ memuse++;
+ p_bridge->bridge_id = bridge_id;
+
+ /* attach bridge instance to list */
+ while (*temp)
+ temp = &((*temp)->next);
+ *temp = p_bridge;
+ PDEBUG(DEBUG_PORT, "Port %d creating not existing bridge %u.\n", p_serial, p_bridge->bridge_id);
+ }
+
+ /* attach to bridge */
+ memberp = &p_bridge->first;
+ while(*memberp) {
+ if ((*memberp)->port == this) {
+ /* already joined */
+ return;
+ }
+ memberp = &((*memberp)->next);
+ }
+ *memberp = (struct port_bridge_member *) MALLOC(sizeof(struct port_bridge_member));
+ memuse++;
+ (*memberp)->port = this;
+ /* check if bridge becomes a conference */
+#ifndef TEST_CONFERENCE
+ if (p_bridge->first->next && p_bridge->first->next->next && !p_bridge->first->next->next->next) {
+ p_bridge->first->next->next->write_p = 0;
+ p_bridge->first->next->next->min_space = 0;
+ memset(p_bridge->first->next->next->buffer, silence, sizeof((*memberp)->buffer));
+#else
+ if (p_bridge->first->next && !p_bridge->first->next->next) {
+#endif
+ p_bridge->first->next->write_p = 0;
+ p_bridge->first->next->min_space = 0;
+ memset(p_bridge->first->next->buffer, silence, sizeof((*memberp)->buffer));
+ p_bridge->first->write_p = 0;
+ p_bridge->first->min_space = 0;
+ memset(p_bridge->first->buffer, silence, sizeof((*memberp)->buffer));
+ memset(p_bridge->sum_buffer, 0, sizeof(p_bridge->sum_buffer));
+ p_bridge->read_p = 0;
+ add_timer(&p_bridge->timer, bridge_timeout, p_bridge, 0);
+ schedule_timer(&p_bridge->timer, 0, 20000); /* 20 MS */
+ p_bridge->sample_count = 0;
+ PDEBUG(DEBUG_PORT, "bridge %u became a conference\n", p_bridge->bridge_id);
+ }
+}
+
+/* send data to remote Port or add to sum buffer */
+int Port::bridge_tx(unsigned char *data, int len)
+{
+ int write_p, space;
+ struct port_bridge_member *member;
+ signed long *sum;
+ unsigned char *buf;
+
+#ifdef WITH_VOOTP
+ if (p_vootp)
+ vootp_encrypt_stream(p_vootp, data, len);
+#endif
+
+ /* less than two ports, so drop */
+ if (!p_bridge || !p_bridge->first || !p_bridge->first->next)
+ return -EIO;
+#ifndef TEST_CONFERENCE
+ /* two ports, so bridge */
+ if (!p_bridge->first->next->next) {
+ if (p_bridge->first->port == this)
+ return p_bridge->first->next->port->bridge_rx(data, len);
+ if (p_bridge->first->next->port == this)
+ return p_bridge->first->port->bridge_rx(data, len);
+ return -EINVAL;
+ }
+#endif
+ /* more than two ports... */
+ member = p_bridge->first;
+ while (member) {
+ if (member->port == this)
+ break;
+ member = member->next;
+ }
+ if (!member)
+ return -EINVAL;
+ write_p = member->write_p;
+ /* calculate space, so write pointer will not overrun (or reach) read pointer in ring buffer */
+ space = (p_bridge->read_p - write_p - 1) & (BRIDGE_BUFFER - 1);
+ /* clip len, if it does not fit */
+ if (space < len)
+ len = space;
+ /* apply audio samples to sum buffer */
+ sum = p_bridge->sum_buffer;
+ buf = member->buffer;
+ while (len--) {
+ sum[write_p] += audio_law_to_s32[*data];
+ buf[write_p] = *data++;
+ write_p = (write_p + 1) & (BRIDGE_BUFFER - 1);
+ }
+ /* raise write pointer */
+ member->write_p = write_p;
+
+ return 0;
+}
+
+int bridge_timeout(struct lcr_timer *timer, void *instance, int index)
+{
+ struct port_bridge *bridge = (struct port_bridge *)instance;
+ struct port_bridge_member *member = bridge->first;
+ unsigned long long timer_time;
+ signed long *sum, sample;
+ unsigned char buffer[160], *buf, *d;
+ int i, read_p, space;
+
+ bridge->sample_count += 160;
+
+ /* schedule exactly 20ms from last schedule */
+ timer_time = timer->timeout.tv_sec * MICRO_SECONDS + timer->timeout.tv_usec;
+ timer_time += 20000; /* 20 MS */
+ timer->timeout.tv_sec = timer_time / MICRO_SECONDS;
+ timer->timeout.tv_usec = timer_time % MICRO_SECONDS;
+ timer->active = 1;
+
+ while (member) {
+ /* calculate transmit data */
+ read_p = bridge->read_p;
+ sum = bridge->sum_buffer;
+ buf = member->buffer;
+ d = buffer;
+ for (i = 0; i < 160; i++) {
+ sample = sum[read_p];
+ sample -= audio_law_to_s32[buf[read_p]];
+ buf[read_p] = silence;
+ if (sample < SHORT_MIN) sample = SHORT_MIN;
+ if (sample > SHORT_MAX) sample = SHORT_MAX;
+ *d++ = audio_s16_to_law[sample & 0xffff];
+ read_p = (read_p + 1) & (BRIDGE_BUFFER - 1);
+ }
+ /* send data */
+ member->port->bridge_rx(buffer, 160);
+ /* raise write pointer, if read pointer would overrun them */
+ space = ((member->write_p - bridge->read_p) & (BRIDGE_BUFFER - 1)) - 160;
+ if (space < 0) {
+ space = 0;
+ member->write_p = read_p;
+// PDEBUG(DEBUG_PORT, "bridge %u member %d has buffer underrun\n", bridge->bridge_id, member->port->p_serial);
+ }
+ /* find minimum delay */
+ if (space < member->min_space)
+ member->min_space = space;
+ /* check if we should reduce buffer */
+ if (bridge->sample_count >= 8000*5) {
+ /* reduce buffer by minimum delay */
+// PDEBUG(DEBUG_PORT, "bridge %u member %d has min space of %d samples\n", bridge->bridge_id, member->port->p_serial, member->min_space);
+ member->write_p = (member->write_p - member->min_space) & (BRIDGE_BUFFER - 1);
+ member->min_space = 1000000; /* infinite */
+ }
+ member = member->next;
+ }
+
+ /* clear sample data */
+ read_p = bridge->read_p;
+ sum = bridge->sum_buffer;
+ for (i = 0; i < 160; i++) {
+ sum[read_p] = 0;
+ read_p = (read_p + 1) & (BRIDGE_BUFFER - 1);
+ }
+
+ /* raise read pointer */
+ bridge->read_p = read_p;
+
+ if (bridge->sample_count >= 8000*5)
+ bridge->sample_count = 0;
+
+ return 0;
+}
+
+
+/* receive data from remote Port */
+int Port::bridge_rx(unsigned char *data, int len)
+{
+
+#ifdef WITH_VOOTP
+ if (p_vootp)
+ vootp_decrypt_stream(p_vootp, data, len);
+#endif
+
+ return 0;
+}
+
+#ifdef WITH_VOOTP
+static void vootp_info(void *priv, const char *text)
+{
+ class Port *port = (class Port *)priv;
+ char display[strlen(text) + 1];
+
+ SCPY(display, text);
+ if (display[0])
+ display[strlen(display) - 1] = '\0';
+
+ port->set_display(display);
+}
+
+void Port::set_vootp(struct param_vootp *vootp)
+{
+ if (p_vootp) {
+ vootp_destroy(p_vootp);
+ p_vootp = NULL;
+ }
+ if (vootp->enable) {
+ p_vootp = vootp_create(this, (options.law=='a'), options.otp_dir, NULL, NULL, vootp->id, vootp_info);
+// vootp_loglevel(VOOTP_LOGL_DEBUG);
+ if (!p_vootp) {
+ struct lcr_msg *message;
+
+ message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_VOOTP);
+ message->param.vootp.failed = 1;
+ message_put(message);
+ }
+ }
+}
+#endif
projects / lcr.git / blobdiff