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avdtp_util: validate MPEG1_2 configuration

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This commit is contained in:
Milanka Ringwald 2025-02-18 16:50:07 +01:00
parent 4547c41ac7
commit d9eb2e9f6e
1 changed files with 45 additions and 2 deletions
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47
src/classic/avdtp_util.c
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@ -1139,11 +1139,54 @@ avdtp_signaling_setup_media_codec_mpeg_audio_config_event(uint8_t *event, uint16
uint8_t vbr = (media_codec_information[2] >> 7) & 0x01;
uint16_t bit_rate_index_bitmap = ((media_codec_information[2] & 0x3f) << 8) | media_codec_information[3];
if (count_set_bits_uint32(layer_bitmap) != 1){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_LAYER;
}
uint8_t * codec_capabilities = &stream_endpoint->sep.capabilities.media_codec.media_codec_information[0];
uint8_t layer_capabilities_bitmap = codec_capabilities[0] >> 5;
if ((layer_capabilities_bitmap & layer_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_LAYER;
}
uint8_t crc_capability = (codec_capabilities[0] >> 4) & 0x01;
if ((crc_capability == 0u) && (crc != 0u)){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_CRC;
}
if (count_set_bits_uint32(channel_mode_bitmap) != 1){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_CHANNEL_MODE;
}
uint8_t channel_mode_capability_bitmap = codec_capabilities[0] & 0x07;
if ((channel_mode_capability_bitmap & channel_mode_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_CHANNEL_MODE;
}
uint8_t mpf_capability = (codec_capabilities[1] >> 6) & 0x01;
if ((mpf_capability == 0u) && (mpf != 0u)){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_MPF;
}
if (count_set_bits_uint32(sampling_frequency_bitmap) != 1){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_SAMPLING_FREQUENCY;
}
if (count_set_bits_uint32(channel_mode_bitmap) != 1){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_CHANNEL_MODE;
uint8_t sampling_frequency_capability_bitmap = (codec_capabilities[1] & 0x3F);
if ((sampling_frequency_capability_bitmap & sampling_frequency_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_SAMPLING_FREQUENCY;
}
uint8_t vbr_capability = (codec_capabilities[2] >> 7) & 0x01;
if ( (vbr_capability == 0u) && (vbr != 0u)){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_VBR;
}
if (count_set_bits_uint32(bit_rate_index_bitmap) != 1){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_BITRATE;
}
if ( (bit_rate_index_bitmap & (1 << 15)) != 0u){
return CODEC_SPECIFIC_ERROR_CODE_INVALID_BITRATE;
}
uint8_t bit_rate_capability_bitmap = ((codec_capabilities[2] & 0x3f) << 8) | codec_capabilities[3];
if ((bit_rate_capability_bitmap & bit_rate_index_bitmap) == 0u){
return CODEC_SPECIFIC_ERROR_CODE_NOT_SUPPORTED_BITRATE;
}
uint8_t layer = 0;