1 /**************************************************************************/
2 /*                                                                        */
3 /*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4 /*                                                                        */
5 /*       This software is licensed under the Microsoft Software License   */
6 /*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7 /*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8 /*       and in the root directory of this software.                      */
9 /*                                                                        */
10 /**************************************************************************/
11 
12 
13 /**************************************************************************/
14 /**************************************************************************/
15 /**                                                                       */
16 /** NetX Secure Component                                                 */
17 /**                                                                       */
18 /**    Datagram Transport Layer Security (DTLS)                           */
19 /**                                                                       */
20 /**************************************************************************/
21 /**************************************************************************/
22 
23 #define NX_SECURE_SOURCE_CODE
24 
25 
26 /* Include necessary system files.  */
27 
28 #include "nx_secure_dtls.h"
29 
30 /* Bring in externs for caller checking code.  */
31 
32 NX_SECURE_CALLER_CHECKING_EXTERNS
33 
34 /**************************************************************************/
35 /*                                                                        */
36 /*  FUNCTION                                               RELEASE        */
37 /*                                                                        */
38 /*    _nxe_secure_dtls_session_start                      PORTABLE C      */
39 /*                                                           6.1          */
40 /*  AUTHOR                                                                */
41 /*                                                                        */
42 /*    Timothy Stapko, Microsoft Corporation                               */
43 /*                                                                        */
44 /*  DESCRIPTION                                                           */
45 /*                                                                        */
46 /*    This function checks for errors in the DTLS session start call.     */
47 /*                                                                        */
48 /*  INPUT                                                                 */
49 /*                                                                        */
50 /*    dtls_session                          DTLS control block            */
51 /*    udp_socket                            UDP socket pointer            */
52 /*    is_client                             Is client or server           */
53 /*    wait_option                           Suspension option             */
54 /*                                                                        */
55 /*  OUTPUT                                                                */
56 /*                                                                        */
57 /*    status                                Completion status             */
58 /*                                                                        */
59 /*  CALLS                                                                 */
60 /*                                                                        */
61 /*    _nx_secure_dtls_session_start         Actual DTLS session start call*/
62 /*                                                                        */
63 /*  CALLED BY                                                             */
64 /*                                                                        */
65 /*    Application Code                                                    */
66 /*                                                                        */
67 /*  RELEASE HISTORY                                                       */
68 /*                                                                        */
69 /*    DATE              NAME                      DESCRIPTION             */
70 /*                                                                        */
71 /*  05-19-2020     Timothy Stapko           Initial Version 6.0           */
72 /*  09-30-2020     Timothy Stapko           Modified comment(s),          */
73 /*                                            resulting in version 6.1    */
74 /*                                                                        */
75 /**************************************************************************/
_nxe_secure_dtls_session_start(NX_SECURE_DTLS_SESSION * dtls_session,NX_UDP_SOCKET * udp_socket,UINT is_client,UINT wait_option)76 UINT _nxe_secure_dtls_session_start(NX_SECURE_DTLS_SESSION *dtls_session, NX_UDP_SOCKET *udp_socket,
77                                     UINT is_client, UINT wait_option)
78 {
79 #ifdef NX_SECURE_ENABLE_DTLS
80 UINT status;
81 
82     if ((dtls_session == NX_NULL) || (udp_socket == NX_NULL))
83     {
84         return(NX_PTR_ERROR);
85     }
86 
87     /* Make sure the session is initialized. */
88     if (dtls_session->nx_secure_dtls_tls_session.nx_secure_tls_id != NX_SECURE_TLS_ID)
89     {
90         return(NX_SECURE_TLS_SESSION_UNINITIALIZED);
91     }
92 
93     status =  _nx_secure_dtls_session_start(dtls_session, udp_socket, is_client, wait_option);
94 
95     /* Return completion status.  */
96     return(status);
97 #else
98     NX_PARAMETER_NOT_USED(dtls_session);
99     NX_PARAMETER_NOT_USED(udp_socket);
100     NX_PARAMETER_NOT_USED(is_client);
101     NX_PARAMETER_NOT_USED(wait_option);
102 
103     return(NX_NOT_SUPPORTED);
104 #endif /* NX_SECURE_ENABLE_DTLS */
105 }
106 
107