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goodix: Read the header using byte reader

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This commit is contained in:
Marco Trevisan (Treviño)
2025-02-13 23:51:52 +00:00
committed by Marco Trevisan
parent 7b97bed91f
commit 63b5908f38
3 changed files with 32 additions and 19 deletions
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libfprint/drivers/goodixmoc/goodix_proto.c
+25 -11
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@@ -226,21 +226,35 @@ gx_proto_build_package (uint8_t *ppackage,
int
gx_proto_parse_header (
uint8_t *buffer,
uint32_t buffer_len,
pack_header *pheader)
gx_proto_parse_header (FpiByteReader *reader,
pack_header *pheader)
{
if (!buffer || !pheader)
return -1;
if (buffer_len < PACKAGE_HEADER_SIZE + PACKAGE_CRC_SIZE)
if (!pheader)
return -1;
memcpy (pheader, buffer, sizeof (pack_header));
pheader->len = GUINT16_FROM_LE (pheader->len);
if (buffer_len < pheader->len + PACKAGE_HEADER_SIZE)
return -1;
if (!fpi_byte_reader_get_uint8 (reader, &pheader->cmd0))
g_return_val_if_reached (-1);
if (!fpi_byte_reader_get_uint8 (reader, &pheader->cmd1))
g_return_val_if_reached (-1);
if (!fpi_byte_reader_get_uint8 (reader, &pheader->packagenum))
g_return_val_if_reached (-1);
if (!fpi_byte_reader_get_uint8 (reader, &pheader->reserved))
g_return_val_if_reached (-1);
if (!fpi_byte_reader_get_uint16_le (reader, &pheader->len))
g_return_val_if_reached (-1);
if (!fpi_byte_reader_get_uint8 (reader, &pheader->crc8))
g_return_val_if_reached (-1);
if (!fpi_byte_reader_get_uint8 (reader, &pheader->rev_crc8))
g_return_val_if_reached (-1);
pheader->len -= PACKAGE_CRC_SIZE;
return 0;
}