Coverage Report

Created: 2025-03-01 02:43

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/libfido2/src/touch.c
Line
Count
Source
1
/*
2
 * Copyright (c) 2018-2022 Yubico AB. All rights reserved.
3
 * Use of this source code is governed by a BSD-style
4
 * license that can be found in the LICENSE file.
5
 * SPDX-License-Identifier: BSD-2-Clause
6
 */
7
8
#include <openssl/sha.h>
9
#include "fido.h"
10
11
int
12
fido_dev_get_touch_begin(fido_dev_t *dev)
13
11.5k
{
14
11.5k
        fido_blob_t      f;
15
11.5k
        cbor_item_t     *argv[9];
16
11.5k
        const char      *clientdata = FIDO_DUMMY_CLIENTDATA;
17
11.5k
        const uint8_t    user_id = FIDO_DUMMY_USER_ID;
18
11.5k
        unsigned char    cdh[SHA256_DIGEST_LENGTH];
19
11.5k
        fido_rp_t        rp;
20
11.5k
        fido_user_t      user;
21
11.5k
        int              ms = dev->timeout_ms;
22
11.5k
        int              r = FIDO_ERR_INTERNAL;
23
24
11.5k
        memset(&f, 0, sizeof(f));
25
11.5k
        memset(argv, 0, sizeof(argv));
26
11.5k
        memset(cdh, 0, sizeof(cdh));
27
11.5k
        memset(&rp, 0, sizeof(rp));
28
11.5k
        memset(&user, 0, sizeof(user));
29
30
11.5k
        if (fido_dev_is_fido2(dev) == false)
31
10.6k
                return (u2f_get_touch_begin(dev, &ms));
32
33
886
        if (SHA256((const void *)clientdata, strlen(clientdata), cdh) != cdh) {
34
5
                fido_log_debug("%s: sha256", __func__);
35
5
                return (FIDO_ERR_INTERNAL);
36
5
        }
37
38
881
        if ((rp.id = strdup(FIDO_DUMMY_RP_ID)) == NULL ||
39
881
            (user.name = strdup(FIDO_DUMMY_USER_NAME)) == NULL) {
40
24
                fido_log_debug("%s: strdup", __func__);
41
24
                goto fail;
42
24
        }
43
44
857
        if (fido_blob_set(&user.id, &user_id, sizeof(user_id)) < 0) {
45
8
                fido_log_debug("%s: fido_blob_set", __func__);
46
8
                goto fail;
47
8
        }
48
49
849
        if ((argv[0] = cbor_build_bytestring(cdh, sizeof(cdh))) == NULL ||
50
849
            (argv[1] = cbor_encode_rp_entity(&rp)) == NULL ||
51
849
            (argv[2] = cbor_encode_user_entity(&user)) == NULL ||
52
849
            (argv[3] = cbor_encode_pubkey_param(COSE_ES256)) == NULL) {
53
188
                fido_log_debug("%s: cbor encode", __func__);
54
188
                goto fail;
55
188
        }
56
57
661
        if (fido_dev_supports_pin(dev)) {
58
570
                if ((argv[7] = cbor_new_definite_bytestring()) == NULL ||
59
570
                    (argv[8] = cbor_encode_pin_opt(dev)) == NULL) {
60
30
                        fido_log_debug("%s: cbor encode", __func__);
61
30
                        goto fail;
62
30
                }
63
570
        }
64
65
631
        if (cbor_build_frame(CTAP_CBOR_MAKECRED, argv, nitems(argv), &f) < 0 ||
66
631
            fido_tx(dev, CTAP_CMD_CBOR, f.ptr, f.len, &ms) < 0) {
67
113
                fido_log_debug("%s: fido_tx", __func__);
68
113
                r = FIDO_ERR_TX;
69
113
                goto fail;
70
113
        }
71
72
518
        r = FIDO_OK;
73
881
fail:
74
881
        cbor_vector_free(argv, nitems(argv));
75
881
        free(f.ptr);
76
881
        free(rp.id);
77
881
        free(user.name);
78
881
        free(user.id.ptr);
79
80
881
        return (r);
81
518
}
82
83
int
84
fido_dev_get_touch_status(fido_dev_t *dev, int *touched, int ms)
85
11.5k
{
86
11.5k
        int r;
87
88
11.5k
        *touched = 0;
89
90
11.5k
        if (fido_dev_is_fido2(dev) == false)
91
10.6k
                return (u2f_get_touch_status(dev, touched, &ms));
92
93
886
        switch ((r = fido_rx_cbor_status(dev, &ms))) {
94
5
        case FIDO_ERR_PIN_AUTH_INVALID:
95
9
        case FIDO_ERR_PIN_INVALID:
96
13
        case FIDO_ERR_PIN_NOT_SET:
97
402
        case FIDO_ERR_SUCCESS:
98
402
                *touched = 1;
99
402
                break;
100
274
        case FIDO_ERR_RX:
101
                /* ignore */
102
274
                break;
103
210
        default:
104
210
                fido_log_debug("%s: fido_rx_cbor_status", __func__);
105
210
                return (r);
106
886
        }
107
108
676
        return (FIDO_OK);
109
886
}