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_client_session_start               PORTABLE C      */
31 /*                                                           6.1          */
32 /*  AUTHOR                                                                */
33 /*                                                                        */
34 /*    Timothy Stapko, Microsoft Corporation                               */
35 /*                                                                        */
36 /*  DESCRIPTION                                                           */
37 /*                                                                        */
38 /*    This function checks for errors in a DTLS client session start call.*/
39 /*                                                                        */
40 /*  INPUT                                                                 */
41 /*                                                                        */
42 /*    dtls_session                          DTLS control block            */
43 /*    udp_socket                            UDP socket pointer            */
44 /*    wait_option                           Suspension option             */
45 /*    ip_address                            Address of remote server      */
46 /*    port                                  Port on remote server         */
47 /*                                                                        */
48 /*  OUTPUT                                                                */
49 /*                                                                        */
50 /*    status                                Completion status             */
51 /*                                                                        */
52 /*  CALLS                                                                 */
53 /*                                                                        */
54 /*    _nx_secure_dtls_client_session_start  Start the DTLS session        */
55 /*                                                                        */
56 /*  CALLED BY                                                             */
57 /*                                                                        */
58 /*    Application Code                                                    */
59 /*                                                                        */
60 /*  RELEASE HISTORY                                                       */
61 /*                                                                        */
62 /*    DATE              NAME                      DESCRIPTION             */
63 /*                                                                        */
64 /*  05-19-2020     Timothy Stapko           Initial Version 6.0           */
65 /*  09-30-2020     Timothy Stapko           Modified comment(s),          */
66 /*                                            resulting in version 6.1    */
67 /*                                                                        */
68 /**************************************************************************/
_nxe_secure_dtls_client_session_start(NX_SECURE_DTLS_SESSION * dtls_session,NX_UDP_SOCKET * udp_socket,NXD_ADDRESS * ip_address,UINT port,UINT wait_option)69 UINT _nxe_secure_dtls_client_session_start(NX_SECURE_DTLS_SESSION *dtls_session, NX_UDP_SOCKET *udp_socket, NXD_ADDRESS *ip_address, UINT port, UINT wait_option)
70 {
71 #ifdef NX_SECURE_ENABLE_DTLS
72 UINT status;
73 
74     /* Check pointers. */
75     if(dtls_session == NX_NULL || udp_socket == NX_NULL || ip_address == NX_NULL)
76     {
77         return(NX_PTR_ERROR);
78     }
79 
80     /* Make sure the session is initialized. */
81     if(dtls_session->nx_secure_dtls_tls_session.nx_secure_tls_id != NX_SECURE_TLS_ID)
82     {
83         return(NX_SECURE_TLS_SESSION_UNINITIALIZED);
84     }
85 
86     /* Call actual function. */
87     status = _nx_secure_dtls_client_session_start(dtls_session, udp_socket, ip_address, port, wait_option);
88 
89     return(status);
90 #else
91     NX_PARAMETER_NOT_USED(dtls_session);
92     NX_PARAMETER_NOT_USED(udp_socket);
93     NX_PARAMETER_NOT_USED(wait_option);
94     NX_PARAMETER_NOT_USED(ip_address);
95     NX_PARAMETER_NOT_USED(port);
96 
97     return(NX_NOT_SUPPORTED);
98 #endif /* NX_SECURE_ENABLE_DTLS */
99 }
100