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 /**    Datagram Transport Layer Security (DTLS)                           */
18 /**                                                                       */
19 /**************************************************************************/
20 /**************************************************************************/
21 
22 #define NX_SECURE_SOURCE_CODE
23 
24 #include "nx_secure_dtls.h"
25 
26 /**************************************************************************/
27 /*                                                                        */
28 /*  FUNCTION                                               RELEASE        */
29 /*                                                                        */
30 /*    _nxe_secure_dtls_server_delete                      PORTABLE C      */
31 /*                                                           6.1          */
32 /*  AUTHOR                                                                */
33 /*                                                                        */
34 /*    Timothy Stapko, Microsoft Corporation                               */
35 /*                                                                        */
36 /*  DESCRIPTION                                                           */
37 /*                                                                        */
38 /*    This function checks for errors when deleting a DTLS server.        */
39 /*                                                                        */
40 /*  INPUT                                                                 */
41 /*                                                                        */
42 /*    server_ptr                            DTLS server control block     */
43 /*                                                                        */
44 /*  OUTPUT                                                                */
45 /*                                                                        */
46 /*    status                                Completion status             */
47 /*                                                                        */
48 /*  CALLS                                                                 */
49 /*                                                                        */
50 /*    _nx_secure_dtls_server_delete         Actual function call          */
51 /*                                                                        */
52 /*  CALLED BY                                                             */
53 /*                                                                        */
54 /*    Application Code                                                    */
55 /*                                                                        */
56 /*  RELEASE HISTORY                                                       */
57 /*                                                                        */
58 /*    DATE              NAME                      DESCRIPTION             */
59 /*                                                                        */
60 /*  05-19-2020     Timothy Stapko           Initial Version 6.0           */
61 /*  09-30-2020     Timothy Stapko           Modified comment(s),          */
62 /*                                            resulting in version 6.1    */
63 /*                                                                        */
64 /**************************************************************************/
_nxe_secure_dtls_server_delete(NX_SECURE_DTLS_SERVER * server_ptr)65 UINT _nxe_secure_dtls_server_delete(NX_SECURE_DTLS_SERVER *server_ptr)
66 {
67 #ifdef NX_SECURE_ENABLE_DTLS
68 UINT status = NX_SUCCESS;
69 NX_SECURE_DTLS_SERVER *temp_server;
70 
71     /* Check pointer */
72     if(server_ptr == NX_NULL)
73     {
74         return(NX_PTR_ERROR);
75     }
76 
77     temp_server = _nx_secure_dtls_server_created_ptr;
78     for (;;)
79     {
80         if (temp_server == NX_NULL)
81         {
82 
83             /* No session created. */
84             return(NX_PTR_ERROR);
85         }
86 
87         if (temp_server == server_ptr)
88         {
89 
90             /* Found the server to delete. */
91             break;
92         }
93 
94         temp_server = temp_server -> nx_dtls_server_created_next;
95 
96         if (temp_server == _nx_secure_dtls_server_created_ptr)
97         {
98 
99             /* This server is not created. */
100             return(NX_PTR_ERROR);
101         }
102     }
103 
104     /* Call actual function. */
105     status = _nx_secure_dtls_server_delete(server_ptr);
106 
107     return(status);
108 #else
109     NX_PARAMETER_NOT_USED(server_ptr);
110 
111     return(NX_NOT_SUPPORTED);
112 #endif /* NX_SECURE_ENABLE_DTLS */
113 }
114 
115