Coverage Report

Created: 2024-06-03 09:43

/libfido2/src/touch.c
Line
Count
Source (jump to first uncovered line)
1
/*
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 * Copyright (c) 2018-2022 Yubico AB. All rights reserved.
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 * Use of this source code is governed by a BSD-style
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 * license that can be found in the LICENSE file.
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 * SPDX-License-Identifier: BSD-2-Clause
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 */
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#include <openssl/sha.h>
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#include "fido.h"
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11
int
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fido_dev_get_touch_begin(fido_dev_t *dev)
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3.60k
{
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3.60k
        fido_blob_t      f;
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3.60k
        cbor_item_t     *argv[9];
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3.60k
        const char      *clientdata = FIDO_DUMMY_CLIENTDATA;
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3.60k
        const uint8_t    user_id = FIDO_DUMMY_USER_ID;
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3.60k
        unsigned char    cdh[SHA256_DIGEST_LENGTH];
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3.60k
        fido_rp_t        rp;
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3.60k
        fido_user_t      user;
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3.60k
        int              ms = dev->timeout_ms;
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3.60k
        int              r = FIDO_ERR_INTERNAL;
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3.60k
        memset(&f, 0, sizeof(f));
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3.60k
        memset(argv, 0, sizeof(argv));
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3.60k
        memset(cdh, 0, sizeof(cdh));
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3.60k
        memset(&rp, 0, sizeof(rp));
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3.60k
        memset(&user, 0, sizeof(user));
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3.60k
        if (fido_dev_is_fido2(dev) == false)
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3.26k
                return (u2f_get_touch_begin(dev, &ms));
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338
        if (SHA256((const void *)clientdata, strlen(clientdata), cdh) != cdh) {
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3
                fido_log_debug("%s: sha256", __func__);
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3
                return (FIDO_ERR_INTERNAL);
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3
        }
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335
        if ((rp.id = strdup(FIDO_DUMMY_RP_ID)) == NULL ||
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335
            (user.name = strdup(FIDO_DUMMY_USER_NAME)) == NULL) {
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9
                fido_log_debug("%s: strdup", __func__);
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9
                goto fail;
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9
        }
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326
        if (fido_blob_set(&user.id, &user_id, sizeof(user_id)) < 0) {
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2
                fido_log_debug("%s: fido_blob_set", __func__);
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2
                goto fail;
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2
        }
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324
        if ((argv[0] = cbor_build_bytestring(cdh, sizeof(cdh))) == NULL ||
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324
            (argv[1] = cbor_encode_rp_entity(&rp)) == NULL ||
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324
            (argv[2] = cbor_encode_user_entity(&user)) == NULL ||
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324
            (argv[3] = cbor_encode_pubkey_param(COSE_ES256)) == NULL) {
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69
                fido_log_debug("%s: cbor encode", __func__);
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69
                goto fail;
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69
        }
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255
        if (fido_dev_supports_pin(dev)) {
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146
                if ((argv[7] = cbor_new_definite_bytestring()) == NULL ||
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146
                    (argv[8] = cbor_encode_pin_opt(dev)) == NULL) {
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6
                        fido_log_debug("%s: cbor encode", __func__);
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6
                        goto fail;
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6
                }
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146
        }
64
65
249
        if (cbor_build_frame(CTAP_CBOR_MAKECRED, argv, nitems(argv), &f) < 0 ||
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249
            fido_tx(dev, CTAP_CMD_CBOR, f.ptr, f.len, &ms) < 0) {
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37
                fido_log_debug("%s: fido_tx", __func__);
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37
                r = FIDO_ERR_TX;
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37
                goto fail;
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37
        }
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212
        r = FIDO_OK;
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335
fail:
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335
        cbor_vector_free(argv, nitems(argv));
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335
        free(f.ptr);
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335
        free(rp.id);
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335
        free(user.name);
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335
        free(user.id.ptr);
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80
335
        return (r);
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212
}
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83
int
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fido_dev_get_touch_status(fido_dev_t *dev, int *touched, int ms)
85
3.60k
{
86
3.60k
        int r;
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88
3.60k
        *touched = 0;
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90
3.60k
        if (fido_dev_is_fido2(dev) == false)
91
3.26k
                return (u2f_get_touch_status(dev, touched, &ms));
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93
338
        switch ((r = fido_rx_cbor_status(dev, &ms))) {
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1
        case FIDO_ERR_PIN_AUTH_INVALID:
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2
        case FIDO_ERR_PIN_INVALID:
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3
        case FIDO_ERR_PIN_NOT_SET:
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92
        case FIDO_ERR_SUCCESS:
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92
                *touched = 1;
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92
                break;
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188
        case FIDO_ERR_RX:
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                /* ignore */
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188
                break;
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58
        default:
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58
                fido_log_debug("%s: fido_rx_cbor_status", __func__);
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58
                return (r);
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338
        }
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108
280
        return (FIDO_OK);
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338
}