85 lines
3.8 KiB
C
85 lines
3.8 KiB
C
/*
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* This file is part of the Pico FIDO distribution (https://github.com/polhenarejos/pico-fido).
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* Copyright (c) 2022 Pol Henarejos.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ctap2_cbor.h"
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#include "fido.h"
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#include "ctap.h"
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#include "files.h"
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#include "apdu.h"
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int cbor_get_info() {
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CborEncoder encoder, mapEncoder, arrayEncoder;
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CborError error = CborNoError;
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cbor_encoder_init(&encoder, ctap_resp->init.data + 1, CTAP_MAX_PACKET_SIZE, 0);
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CBOR_CHECK(cbor_encoder_create_map(&encoder, &mapEncoder, 8));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x01));
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CBOR_CHECK(cbor_encoder_create_array(&mapEncoder, &arrayEncoder, 3));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "U2F_V2"));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "FIDO_2_0"));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "FIDO_2_1"));
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CBOR_CHECK(cbor_encoder_close_container(&mapEncoder, &arrayEncoder));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x02));
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CBOR_CHECK(cbor_encoder_create_array(&mapEncoder, &arrayEncoder, 1));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "hmac-secret"));
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CBOR_CHECK(cbor_encoder_close_container(&mapEncoder, &arrayEncoder));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x03));
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CBOR_CHECK(cbor_encode_byte_string(&mapEncoder, aaguid, sizeof(aaguid)));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x04));
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CBOR_CHECK(cbor_encoder_create_map(&mapEncoder, &arrayEncoder, 5));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "rk"));
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CBOR_CHECK(cbor_encode_boolean(&arrayEncoder, true));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "credMgmt"));
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CBOR_CHECK(cbor_encode_boolean(&arrayEncoder, true));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "authnrCfg"));
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CBOR_CHECK(cbor_encode_boolean(&arrayEncoder, true));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "clientPin"));
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if (file_has_data(ef_pin))
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CBOR_CHECK(cbor_encode_boolean(&arrayEncoder, true));
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else
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CBOR_CHECK(cbor_encode_boolean(&arrayEncoder, false));
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CBOR_CHECK(cbor_encode_text_stringz(&arrayEncoder, "pinUvAuthToken"));
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CBOR_CHECK(cbor_encode_boolean(&arrayEncoder, true));
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CBOR_CHECK(cbor_encoder_close_container(&mapEncoder, &arrayEncoder));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x06));
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CBOR_CHECK(cbor_encoder_create_array(&mapEncoder, &arrayEncoder, 2));
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CBOR_CHECK(cbor_encode_uint(&arrayEncoder, 1)); // PIN protocols
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CBOR_CHECK(cbor_encode_uint(&arrayEncoder, 2)); // PIN protocols
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CBOR_CHECK(cbor_encoder_close_container(&mapEncoder, &arrayEncoder));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x07));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, MAX_CREDENTIAL_COUNT_IN_LIST)); // MAX_CRED_COUNT_IN_LIST
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x08));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, MAX_CRED_ID_LENGTH)); // MAX_CRED_ID_MAX_LENGTH
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 0x0D));
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CBOR_CHECK(cbor_encode_uint(&mapEncoder, 4)); // minPINLength
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CBOR_CHECK(cbor_encoder_close_container(&encoder, &mapEncoder));
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err:
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if (error != CborNoError)
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return -CTAP2_ERR_INVALID_CBOR;
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res_APDU_size = cbor_encoder_get_buffer_size(&encoder, res_APDU + 1);
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return 0;
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}
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