void audio_callback(void *userdata, uint8_t *stream, int len)
{
audio_callback_userdata_t *params = (audio_callback_userdata_t*)userdata;
int bits = format_bits(params->audiospec.format);
bool sign = format_signed(params->audiospec.format);
bool swap_endian = format_swap_endian(params->audiospec.format);
assert(!swap_endian);
float factor = ((uint32_t)1 << (sign ? (bits-1) : bits)) - 1;
float bias = sign ? 0.0 : 1.0;
int num_samples = len / (bits/8) / params->audiospec.channels;
synth_control(params->synth);
for(int i = 0; i < num_samples; ++i)
{
float out_samples[2];
synth_mix(params->synth, out_samples+0, out_samples+1);
if(params->audiospec.channels == 1) // downmix to mono
out_samples[0] = (out_samples[0] + out_samples[1]) / 2.0;
for(int j = 0; j < params->audiospec.channels; ++j)
{
float sample = factor * (out_samples[j] + bias);
int32_t isample = sample;
/*printf("%2.3f\t%10d\n", sample, isample);*/
for(int byte = 0; byte < (bits/8); ++byte)
*(stream + params->audiospec.channels * (bits/8) * i + j * (bits/8) + byte) =
*((uint8_t*)&isample + byte);
}
}
}
/*===========================================================================
*===========================================================================*/
void
display_station_item(struct mg_connection *c, const struct mg_request_info *ri, void *user_data)
{
struct SQDB *sqdb = (struct SQDB*)user_data;
unsigned char mac_address[6];
char mac_address_str[16];
char buf[64];
struct TMP_STATIONS *stations = NULL;
unsigned station_count = 0;
unsigned i;
if (strstr(ri->uri, ".xml")) {
xml_station_item(c, ri, user_data);
return;
}
pixie_enter_critical_section(sqdb->cs);
if (memcmp(ri->uri, "/station/", 9) != 0) {
mg_printf(c, "404 Not Found\r\nConnection: closed\r\n\r\n");
goto _return;
}
/*
* Lookup this BSSID entry
*/
parse_mac_address(mac_address, sizeof(mac_address), ri->uri+strlen("/station/"));
stations = sqdb_find_station(sqdb, mac_address, &station_count);
if (stations == 0 || station_count == 0) {
mg_printf(c, "404 Not Found\r\nConnection: closed\r\n\r\n");
goto _return;
}
sprintf_s(mac_address_str, sizeof(mac_address_str), "%02x%02x%02x%02x%02x%02x",
mac_address[0],mac_address[1],mac_address[2],
mac_address[3],mac_address[4],mac_address[5]
);
mg_headers_ok(c, "text/html");
X(c, "Connection: close\r\n");
X(c, "\r\n");
//X(c, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\r\n");
X(c,"<html>\n");
X(c,"<head>\n");
X(c," <title>Squirrel WiFi monitor</title>\n");
X(c," <link rel=\"stylesheet\" type=\"text/css\" href=\"../squirrel.css\" />\n");
X(c," <link rel=\"Shortcut Icon\" href=\"../favicon.ico\" type=\"image/x-icon\">\n");
X(c," <script type=\"text/javascript\" src=\"../squirrel.js\"></script>\n");
X(c, "<script type=\"text/javascript\">var bssid_item_address = '%s';</script>\n", mac_address_str);
X(c,"</head>\n");
X(c,"<body onLoad=\"setInterval(refresh_station_item,1000)\">\n");
display_topmenu(c, ri, user_data, 1);
for (i=0; i<station_count; i++) {
struct TMP_STATIONS *tmp = &stations[i];
/*
* ASSOCIATED station
*/
if (tmp->type == 2) {
struct SQDB_SubStation *sta = tmp->sta.associated;
struct SQDB_AccessPoint *ap = tmp->sta.accesspoint;
X(c, "<table id=\"station\" class=\"station\">\n");
X(c, " <tr id=\"0\"><th colspan=\"6\" class=\"title\">ASSOCIATED STATION</th></tr>\n");
X(c, " <tr id=\"1\">\n");
X(c, " <th>MAC:</th><td id=\"mac\" class=\"mac\">[%02x:%02x:%02x:%02x:%02x:%02x]</td>\n",
mac_address[0],mac_address[1],mac_address[2],
mac_address[3],mac_address[4],mac_address[5],
mac_address[0],mac_address[1],mac_address[2],
mac_address[3],mac_address[4],mac_address[5]
);
X(c, " <th>Data Sent:</th><td id=\"dataout\" class=\"sent\">%s</td>\n", format_unsigned(sta->data_sent,buf,sizeof(buf)));
X(c, " <th>Data Recv:</th><td id=\"datain\" class=\"sent\">%s</td>\n", format_unsigned(sta->data_received,buf,sizeof(buf)));
X(c, " </tr>\n");
X(c, " <tr id=\"2\">\n");
X(c, " <th>SSID:</th><td id=\"essid\" class=\"essid\"><a href=\"/bssid/%02x%02x%02x%02x%02x%02x.html\">%.*s</a></td>\n",
ap->bssid[0], ap->bssid[1], ap->bssid[2],
ap->bssid[3], ap->bssid[4], ap->bssid[5],
ap->ssid.length, ap->ssid.value);
X(c, " <th>Ctrl Sent:</th><td id=\"ctrlout\" class=\"sent\">%s</td>\n", format_unsigned(sta->ctrl_sent,buf,sizeof(buf)));
X(c, " <th>Ctrl Recv:</th><td id=\"ctrlin\" class=\"sent\">%s</td>\n", format_unsigned(sta->ctrl_received,buf,sizeof(buf)));
X(c, " </tr>\n");
X(c, " <tr id=\"4\">\n");
X(c, " <th>BSSID:</th><td id=\"bssid\" class=\"bssid\"><a href=\"/bssid/%02x%02x%02x%02x%02x%02x.html\">%02x:%02x:%02x:%02x:%02x:%02x</a></td>\n",
ap->bssid[0], ap->bssid[1], ap->bssid[2],
ap->bssid[3], ap->bssid[4], ap->bssid[5],
ap->bssid[0], ap->bssid[1], ap->bssid[2],
ap->bssid[3], ap->bssid[4], ap->bssid[5]
);
X(c, " <th>Power:</th><td id=\"power\" class=\"power\">%s</td>\n", format_signed(sta->dbm,buf,sizeof(buf)));
X(c, " <th>Channels:</th><td id=\"channels\" class=\"channels\">");
{
unsigned j;
for (j=0; j<ap->channel_count; j++) {
X(c, "%u%c", ap->channels[j], (j+1<ap->channel_count?',':' '));
}
}
X(c, "</td>\n");
X(c, " </tr>\n");
X(c, " <tr id=\"6\">\n");
X(c, " <th>MANUF:</th><td id=\"manuf\" class=\"manuf\">%s</td>\n", manuf_from_mac(mac_address));
X(c, " <th>Desc:</th><td id=\"manuf2\" class=\"manuf2\" colspan=\"3\">%s</td>\n", manuf2_from_mac(mac_address));
X(c, " </tr>\n");
X(c, " <tr id=\"7\">\n");
X(c, " <th>Info:</th><td id=\"manuf\" class=\"manuf\" colspan=\"5\">\n");
{
struct NVPair *nv = sta->data;
while (nv) {
X(c, " %s = %s<br/>\n", nv->name, nv->value);
nv = nv->next;
}
}
X(c, " </th>\n");
X(c, " </tr>\n");
X(c, "</table><br/>\n");
}
if (tmp->type == 1) {
struct SQDB_Station *sta = tmp->sta.unassociated;
X(c, "<table id=\"station\" class=\"station\">\n");
X(c, " <tr id=\"0\"><th colspan=\"6\" class=\"title\">UNASSOCIATED PROBER</th></tr>\n");
X(c, " <tr id=\"1\">\n");
X(c, " <th>MAC:</th><td id=\"mac\" class=\"mac\">[%02x:%02x:%02x:%02x:%02x:%02x]</td>\n",
mac_address[0],mac_address[1],mac_address[2],
mac_address[3],mac_address[4],mac_address[5],
mac_address[0],mac_address[1],mac_address[2],
mac_address[3],mac_address[4],mac_address[5]
);
X(c, " <th>Probes:</th><td id=\"dataout\" class=\"sent\">%s</td>\n", format_unsigned(sta->probe_count,buf,sizeof(buf)));
X(c, " <th>Responses:</th><td id=\"datain\" class=\"sent\">%s</td>\n", format_unsigned(0,buf,sizeof(buf)));
X(c, " </tr>\n");
X(c, " <tr id=\"7\">\n");
X(c, " <th>SSIDs:</th><td id=\"essid\" class=\"essid\" colspan=\"5\">\n");
{
struct EntrySSID *s;
for (s=&sta->ssid; s; s = s->next) {
char defanged[1024];
defang_ssid(defanged, sizeof(defanged), (const char*)s->ssid.value, s->ssid.length);
X(c, "%s<br/>", defanged);
}
}
X(c, " </th>\n");
X(c, " </tr>\n");
X(c, "</table><br/>\n");
}
}
X(c, "</body>\n"
"</html>\n"
);
_return:
pixie_leave_critical_section(sqdb->cs);
if (stations)
free(stations);
}