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test/le_audio: support encrypted broadcast stream

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This commit is contained in:
Matthias Ringwald 2022-09-14 11:48:27 +02:00
parent de41ee302f
commit ac95ea81b3
2 changed files with 33 additions and 6 deletions
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14
test/le_audio/le_audio_broadcast_sink.c
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@ -133,6 +133,8 @@ static const uint8_t big_handle = 1;
static hci_con_handle_t sync_handle;
static hci_con_handle_t bis_con_handles[MAX_NUM_BIS];
static unsigned int next_bis_index;
static uint8_t encryption;
static uint8_t broadcast_code [] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};
// analysis
static bool last_packet_received_big;
@ -356,6 +358,10 @@ static void handle_periodic_advertisement(const uint8_t * packet, uint16_t size)
static void handle_big_info(const uint8_t * packet, uint16_t size){
printf("BIG Info advertising report\n");
sync_handle = hci_subevent_le_biginfo_advertising_report_get_sync_handle(packet);
encryption = hci_subevent_le_biginfo_advertising_report_get_encryption(packet);
if (encryption) {
printf("Stream is encrypted\n");
}
have_big_info = true;
}
@ -397,8 +403,12 @@ static void enter_create_big_sync(void){
big_sync_params.big_handle = big_handle;
big_sync_params.sync_handle = sync_handle;
big_sync_params.encryption = 0;
memset(big_sync_params.broadcast_code, 0, 16);
big_sync_params.encryption = encryption;
if (encryption) {
memcpy(big_sync_params.broadcast_code, &broadcast_code[0], 16);
} else {
memset(big_sync_params.broadcast_code, 0, 16);
}
big_sync_params.mse = 0;
big_sync_params.big_sync_timeout_10ms = 100;
big_sync_params.num_bis = num_bis;

25
test/le_audio/le_audio_broadcast_source.c
View File

@ -253,6 +253,10 @@ static tracker_buffer_state trkbuf;
static uint8_t sine_step;
static uint16_t sine_phases[MAX_NUM_BIS];
// encryption
static uint8_t encryption = 0;
static uint8_t broadcast_code [] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};
// audio producer
static enum {
AUDIO_SOURCE_SINE,
@ -328,13 +332,13 @@ static struct {
static void show_usage(void);
static void print_config(void) {
printf("Config '%s_%u': %u, %s ms, %u octets - %s\n",
printf("Config '%s_%u': %u, %s ms, %u octets - %s%s\n",
codec_configurations[menu_sampling_frequency].variants[menu_variant].name,
num_bis,
codec_configurations[menu_sampling_frequency].samplingrate_hz,
codec_configurations[menu_sampling_frequency].variants[menu_variant].frame_duration == BTSTACK_LC3_FRAME_DURATION_7500US ? "7.5" : "10",
codec_configurations[menu_sampling_frequency].variants[menu_variant].octets_per_frame,
audio_source == AUDIO_SOURCE_SINE ? "Sine" : "Modplayer");
audio_source == AUDIO_SOURCE_SINE ? "Sine" : "Modplayer", encryption ? " (encrypted)" : "");
}
static void setup_lc3_encoder(void){
@ -494,8 +498,12 @@ static void setup_big(void){
big_params.rtn = 2;
big_params.phy = 2;
big_params.packing = 0;
big_params.encryption = 0;
memset(big_params.broadcast_code, 0, 16);
big_params.encryption = encryption;
if (encryption) {
memcpy(big_params.broadcast_code, &broadcast_code[0], 16);
} else {
memset(big_params.broadcast_code, 0, 16);
}
if (sampling_frequency_hz == 44100){
// same config as for 48k -> frame is longer by 48/44.1
big_params.sdu_interval_us = frame_duration == BTSTACK_LC3_FRAME_DURATION_7500US ? 8163 : 10884;
@ -608,6 +616,7 @@ static void show_usage(void){
print_config();
printf("---\n");
printf("c - toggle channels\n");
printf("e - toggle encryption\n");
printf("f - next sampling frequency\n");
printf("v - next codec variant\n");
printf("t - toggle sine / modplayer\n");
@ -625,6 +634,14 @@ static void stdin_process(char c){
num_bis = 3 - num_bis;
print_config();
break;
case 'e':
if (app_state != APP_IDLE){
printf("Encryption can only be changed in idle state\n");
break;
}
encryption = 1 - encryption;
print_config();
break;
case 'f':
if (app_state != APP_IDLE){
printf("Codec configuration can only be changed in idle state\n");