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 /**    Transport Layer Security (TLS)                                     */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 #define NX_SECURE_SOURCE_CODE
22 
23 #include "nx_secure_tls.h"
24 #include "nx_secure_x509.h"
25 
26 /**************************************************************************/
27 /*                                                                        */
28 /*  FUNCTION                                               RELEASE        */
29 /*                                                                        */
30 /*    _nx_secure_tls_local_certificate_remove             PORTABLE C      */
31 /*                                                           6.2.1        */
32 /*  AUTHOR                                                                */
33 /*                                                                        */
34 /*    Timothy Stapko, Microsoft Corporation                               */
35 /*                                                                        */
36 /*  DESCRIPTION                                                           */
37 /*                                                                        */
38 /*    This function removes an NX_SECURE_TLS_CERTIFICATE instance from    */
39 /*    the local certificates list, keyed on the Common Name field.        */
40 /*                                                                        */
41 /*  INPUT                                                                 */
42 /*                                                                        */
43 /*    tls_session                           Pointer to TLS Session        */
44 /*    common_name                           String to match "CN" field    */
45 /*    common_name_length                    Length of name                */
46 /*                                                                        */
47 /*  OUTPUT                                                                */
48 /*                                                                        */
49 /*    status                                Completion status             */
50 /*                                                                        */
51 /*  CALLS                                                                 */
52 /*                                                                        */
53 /*    tx_mutex_get                          Get protection mutex          */
54 /*    tx_mutex_put                          Put protection mutex          */
55 /*    _nx_secure_x509_store_certificate_remove                            */
56 /*                                          Remove certificate from the   */
57 /*                                           local store                  */
58 /*                                                                        */
59 /*  CALLED BY                                                             */
60 /*                                                                        */
61 /*    Application Code                                                    */
62 /*                                                                        */
63 /*  RELEASE HISTORY                                                       */
64 /*                                                                        */
65 /*    DATE              NAME                      DESCRIPTION             */
66 /*                                                                        */
67 /*  05-19-2020     Timothy Stapko           Initial Version 6.0           */
68 /*  09-30-2020     Timothy Stapko           Modified comment(s),          */
69 /*                                            resulting in version 6.1    */
70 /*  04-02-2021     Timothy Stapko           Modified comment(s),          */
71 /*                                            updated X.509 return value, */
72 /*                                            resulting in version 6.1.6  */
73 /*  03-08-2023     Yanwu Cai                Modified comment(s),          */
74 /*                                            fixed compiler errors when  */
75 /*                                            x509 is disabled,           */
76 /*                                            resulting in version 6.2.1  */
77 /*                                                                        */
78 /**************************************************************************/
_nx_secure_tls_local_certificate_remove(NX_SECURE_TLS_SESSION * tls_session,UCHAR * common_name,UINT common_name_length)79 UINT _nx_secure_tls_local_certificate_remove(NX_SECURE_TLS_SESSION *tls_session, UCHAR *common_name,
80                                              UINT common_name_length)
81 {
82 #ifndef NX_SECURE_DISABLE_X509
83 UINT                              status;
84 NX_SECURE_X509_DISTINGUISHED_NAME name;
85 
86     /* Get the protection. */
87     tx_mutex_get(&_nx_secure_tls_protection, TX_WAIT_FOREVER);
88 
89     NX_SECURE_MEMSET(&name, 0, sizeof(NX_SECURE_X509_DISTINGUISHED_NAME));
90 
91     /* Setup our common name so we can delete from the certificate store. */
92     name.nx_secure_x509_common_name = common_name;
93     name.nx_secure_x509_common_name_length = (USHORT)common_name_length;
94 
95     /* Remove the certificate from the local store. */
96     status = _nx_secure_x509_store_certificate_remove(&tls_session -> nx_secure_tls_credentials.nx_secure_tls_certificate_store,
97                                                       &name, NX_SECURE_X509_CERT_LOCATION_LOCAL, 0);
98     /* Release the protection. */
99     tx_mutex_put(&_nx_secure_tls_protection);
100 
101     /* Translate some X.509 return values into TLS return values. */
102     if (status == NX_SECURE_X509_CERTIFICATE_NOT_FOUND)
103     {
104         return(NX_SECURE_TLS_CERTIFICATE_NOT_FOUND);
105     }
106 
107     return(status);
108 #else
109     NX_PARAMETER_NOT_USED(tls_session);
110     NX_PARAMETER_NOT_USED(common_name);
111     NX_PARAMETER_NOT_USED(common_name_length);
112 
113     return(NX_NOT_SUPPORTED);
114 #endif
115 }
116 
117