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Adding support for specific vendor HID command (0x41).

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It is a self implementation, based on CBOR command.
data[0] conveys the command and the contents mapped in CBOR encoding.
The map uses the authConfig template, where the fist item in the map is the subcommand (enable/disable at this moment), the second is a map of the parameters, the third and fourth are the pinUvParam and pinUvProtocol.

With this format only a single vendor HID command is necessary (0x41), which will be used for all my own commands, by using the command id in data[0] like with CBOR.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-10-29 19:41:00 +02:00
parent 43cd8869f9
commit e21d985344
9 changed files with 342 additions and 54 deletions
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21
src/fido/cbor_config.c
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@@ -1,4 +1,3 @@
/*
* This file is part of the Pico FIDO distribution (https://github.com/polhenarejos/pico-fido).
* Copyright (c) 2022 Pol Henarejos.
@@ -236,26 +235,6 @@ int cbor_config(const uint8_t *data, size_t len) {
}
goto err; //No return
}
else if (vendorCommandId == CTAP_CONFIG_BACKUP) {
if (vendorAutCt.present == false) { // Save
if (has_keydev_dec == false)
CBOR_ERROR(CTAP2_ERR_PIN_AUTH_INVALID);
CBOR_CHECK(cbor_encoder_create_map(&encoder, &mapEncoder, 1));
CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x01));
CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, file_get_data(ef_keydev_enc), file_get_size(ef_keydev_enc)));
}
else { // Load
uint8_t zeros[32];
memset(zeros, 0, sizeof(zeros));
flash_write_data_to_file(ef_keydev_enc, vendorAutCt.data, vendorAutCt.len);
flash_write_data_to_file(ef_keydev, zeros, file_get_size(ef_keydev)); // Overwrite ef with 0
flash_write_data_to_file(ef_keydev, NULL, 0); // Set ef to 0 bytes
low_flash_available();
goto err;
}
}
else {
CBOR_ERROR(CTAP2_ERR_INVALID_SUBCOMMAND);
}