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avdtp_util: validate ATRAC configuraiton

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This commit is contained in:
Milanka Ringwald 2025-02-18 18:44:55 +01:00
parent 783c2dc202
commit 285574d81a
1 changed files with 40 additions and 1 deletions
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41
src/classic/avdtp_util.c
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@ -1519,17 +1519,56 @@ static codec_specific_error_code_t avdtp_signaling_setup_media_codec_atrac_confi
avdtp_atrac_version_t version = (avdtp_atrac_version_t) (media_codec_information[0] >> 5);
uint8_t channel_mode_bitmap = (media_codec_information[0] >> 2) & 0x07;
uint16_t sampling_frequency_bitmap = (media_codec_information[1] >> 4) & 0x03;
uint8_t sampling_frequency_bitmap = (media_codec_information[1] >> 4) & 0x03;
uint8_t vbr = (media_codec_information[1] >> 3) & 0x01;
uint16_t bit_rate_index_bitmap = ((media_codec_information[1]) & 0x07) << 16 | (media_codec_information[2] << 8) | media_codec_information[3];
uint16_t maximum_sul = (media_codec_information[4] << 8) | media_codec_information[5];
uint8_t * codec_capabilities = &stream_endpoint->sep.capabilities.media_codec.media_codec_information[0];
if (version >= AVDTP_ATRAC_VERSION_RFU){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_VERSION;
}
uint8_t version_capability = (avdtp_atrac_version_t) (codec_capabilities[0] >> 5);
if (version_capability != version){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_VERSION;
}
if (count_set_bits_uint32(channel_mode_bitmap) != 1) {
return CODEC_SPECIFIC_ERROR_CODE_INVALID_CHANNEL_MODE;
}
uint8_t channel_mode_capabilities_bitmap = (codec_capabilities[0] >> 2) & 0x07;
if ((channel_mode_capabilities_bitmap & channel_mode_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_CHANNEL_MODE;
}
if (count_set_bits_uint32(sampling_frequency_bitmap) != 1){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_SAMPLING_FREQUENCY;
}
uint8_t sampling_frequency_capabilities_bitmap = (codec_capabilities[1] >> 4) & 0x03;
if ((sampling_frequency_capabilities_bitmap & sampling_frequency_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_SAMPLING_FREQUENCY;
}
uint8_t vbr_capability = (codec_capabilities[1] >> 3) & 0x01;
if ( (vbr_capability == 0u) && (vbr != 0u)){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_VBR;
}
if (vbr == 0u){
if (count_set_bits_uint32(bit_rate_index_bitmap) != 1) {
return CODEC_SPECIFIC_ERROR_CODE_INVALID_BITRATE;
}
uint8_t bit_rate_index_capabilities_bitmap = ((codec_capabilities[1]) & 0x07) << 16 | (codec_capabilities[2] << 8) | codec_capabilities[3];
if ((bit_rate_index_capabilities_bitmap & bit_rate_index_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_BITRATE;
}
}
uint16_t maximum_sul_capability = (codec_capabilities[4] << 8) | codec_capabilities[5];
if ( maximum_sul_capability < maximum_sul){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_MAXIMUM_SUL;
}
uint8_t num_channels = 0;
avdtp_channel_mode_t channel_mode = AVDTP_CHANNEL_MODE_JOINT_STEREO;