1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** NetX Secure Component */
16 /** */
17 /** X.509 Digital Certificates */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22 #define NX_SECURE_SOURCE_CODE
23
24 #include "nx_secure_x509.h"
25
26 /* Bring in externs for caller checking code. */
27
28 NX_SECURE_CALLER_CHECKING_EXTERNS
29
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _nxe_secure_x509_extension_find PORTABLE C */
36 /* 6.1.6 */
37 /* AUTHOR */
38 /* */
39 /* Timothy Stapko, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* This function checks for errors when attempting to parse through an */
44 /* X.509 certificate for a specific extension. */
45 /* */
46 /* INPUT */
47 /* */
48 /* certificate Certificate to search */
49 /* extension Return instruction data */
50 /* extension_id Extension to search for */
51 /* */
52 /* OUTPUT */
53 /* */
54 /* status Completion status */
55 /* */
56 /* CALLS */
57 /* */
58 /* _nx_secure_x509_extension_find Actual extensions find call */
59 /* */
60 /* CALLED BY */
61 /* */
62 /* Application code */
63 /* */
64 /* RELEASE HISTORY */
65 /* */
66 /* DATE NAME DESCRIPTION */
67 /* */
68 /* 05-19-2020 Timothy Stapko Initial Version 6.0 */
69 /* 09-30-2020 Timothy Stapko Modified comment(s), */
70 /* resulting in version 6.1 */
71 /* 04-02-2021 Timothy Stapko Modified comment(s), */
72 /* removed dependency on TLS, */
73 /* resulting in version 6.1.6 */
74 /* */
75 /**************************************************************************/
_nxe_secure_x509_extension_find(NX_SECURE_X509_CERT * certificate,NX_SECURE_X509_EXTENSION * extension,USHORT extension_id)76 UINT _nxe_secure_x509_extension_find(NX_SECURE_X509_CERT *certificate,
77 NX_SECURE_X509_EXTENSION *extension, USHORT extension_id)
78 {
79 UINT status;
80
81 if (certificate == NX_CRYPTO_NULL || extension == NX_CRYPTO_NULL)
82 {
83 #ifdef NX_CRYPTO_STANDALONE_ENABLE
84 return(NX_CRYPTO_PTR_ERROR);
85 #else
86 return(NX_PTR_ERROR);
87 #endif /* NX_CRYPTO_STANDALONE_ENABLE */
88 }
89
90 /* Check for appropriate caller. */
91 NX_THREADS_ONLY_CALLER_CHECKING
92
93 status = _nx_secure_x509_extension_find(certificate, extension, extension_id);
94
95 return(status);
96 }
97
98
