bool test_255_bytes_null_end( void )
{
uint8_t buffer[255];
for( unsigned int i = 0; i < sizeof(buffer) - 1; i++ )
{
buffer[i] = i + 1;
}
buffer[sizeof(buffer) - 1] = 0;
uint8_t encoded_buffer[257];
uint8_t expected_buffer[257];
expected_buffer[0] = 0xFF;
for( int i = 0; i < 254; i++ )
{
expected_buffer[i + 1] = i + 1;
}
expected_buffer[256] = 1;
expected_buffer[257] = 0xAB;
encoded_buffer[256] = 0xAB;
size_t encoded_length = cobs_encode( buffer, sizeof(buffer), encoded_buffer );
ASSERT_EQUAL_MEM( encoded_buffer, expected_buffer, sizeof(encoded_buffer) );
ASSERT_EQUAL_LUINT( encoded_length, 256 );
return true;
}
void ssMainUpdate() {
if (activeSendFlag) {
uint8_t pacLen = 0;
uint8_t inband = 0;
ssActiveSend(decodedBuffer, &pacLen, &inband);
// Send reply active packet
if (pacLen > 0 && pacLen <= ACTIVE_PACKET_MAX_LEN) {
encodedBuffer[0] = 0x00;
encodedBuffer[1] = packetType;
encodedBuffer[2] = ((!!inband) << 7) | (pacLen+4);
cobs_encode(encodedBuffer+3, decodedBuffer, pacLen);
serialPrint(encodedBuffer, pacLen+4);
}
activeSendFlag = 0;
}
if (rxBufferFlag == RX_FLAG_DATA_AVAILABLE) { // if done receiving
rxBufferFlag = RX_FLAG_DATA_IN_USE;
if (dataLen >= 1) {
cobs_decode(decodedBuffer, rxBuffer, dataLen);
}
if (packetType < 0x80) {
// Read game mode from 0th channel
if (decodedBuffer[0] <= MAX_MODE) gameMode = decodedBuffer[0];
// Read other channels
ssActiveInRec(decodedBuffer+1, dataLen-2, in_band_sigFlag);
} else if (packetType <= 0xFD && packetType >= 0xF0) {
enumerationPacket(packetType, decodedBuffer, dataLen-1);
} else {
uint8_t pacLen = 0;
maintenancePacket(packetType, decodedBuffer, dataLen-1,
decodedBuffer, &pacLen);
// Send reply maintenance packet
if (pacLen > 0 && pacLen <= 0xFF-4) {
encodedBuffer[0] = 0x00;
encodedBuffer[1] = packetType; // Respond with same type as sent.
encodedBuffer[2] = pacLen+4;
cobs_encode(encodedBuffer+3, decodedBuffer, pacLen);
serialPrint(encodedBuffer, pacLen+4);
}
}
rxBufferFlag = RX_FLAG_READY; // should be below if statement
}
}
int cobs_encode_empty(void) {
uint8_t cobs_out[2];
cobs_out[1] = 0xAA;
size_t out_len = cobs_encode(cobs_out, NULL, 0);
if (cobs_out[1] != 0xAA) return 1;
if (out_len != 1) return 1;
if (cobs_out[0] != 0x01) return 1;
return 0;
}
bool test_hex1( void )
{
uint8_t buffer[] = { 1 };
uint8_t encoded_buffer[3] = { 0xAB, 0xAB, 0xAB };
uint8_t expected_buffer[3] = { 2, 1, 0xAB };
size_t encoded_length = cobs_encode( buffer, sizeof(buffer), encoded_buffer );
ASSERT_EQUAL_LUINT( encoded_length, 2 );
ASSERT_EQUAL_MEM( encoded_buffer, expected_buffer, sizeof(encoded_buffer) );
return true;
}
int cobs_encode_multizero(void) {
uint8_t cobs_in[] = {0x11, 0x00, 0x00, 0x33};
size_t in_len = sizeof(cobs_in);
uint8_t cobs_out[in_len + 2];
cobs_out[in_len + 2 - 1] = 0xAA;
uint8_t cobs_out_correct[] = {0x02, 0x11, 0x01, 0x02, 0x33};
size_t out_len = cobs_encode(cobs_out, cobs_in, in_len);
if (cobs_out[in_len + 2 - 1] != 0xAA) return 1;
if (out_len != in_len + 1) return 1;
return memcmp(cobs_out, cobs_out_correct, out_len);
}
ptr += sizeof packet->command;
memcpy(ptr, &packet->index, sizeof packet->index);
ptr += sizeof packet->index;
memcpy(ptr, &packet->payload, packet->payload_length);
ptr += packet->payload_length;
crc_t crc = crc_init();
crc = crc_update(crc, tmp, ptr - tmp);
crc = crc_finalize(crc);
packet->crc = crc;
memcpy(ptr, &crc, sizeof packet->crc);
ptr += sizeof packet->crc;
n = cobs_encode(tmp, ptr - tmp, buffer);
if(n < 0) return n;
//buffer[n++] = 0; // Double null bytes
buffer[n++] = 0;
return n; // success
}
static int unframe(uint8_t * raw_data, int raw_len, struct lux_packet * packet) {
uint8_t tmp[2048];
int len;
len = cobs_decode(raw_data, raw_len, tmp);
if(len < 0) return len;
if(len < 8) {
int cobs_encode_reallylong(void) {
uint8_t cobs_in[] = {
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7,
0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF,
};
size_t in_len = sizeof(cobs_in);
uint8_t cobs_out[in_len + 3];
cobs_out[in_len + 3 - 1] = 0xAA;
uint8_t cobs_out_correct[] = {
0xFF, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7,
0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE,
0x02, 0xFF,
};
size_t out_len = cobs_encode(cobs_out, cobs_in, in_len);
if (cobs_out[in_len + 3 - 1] != 0xAA) return 1;
if (out_len != in_len + 2) return 1;
return memcmp(cobs_out, cobs_out_correct, out_len);
}