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 
22 #define NX_SECURE_SOURCE_CODE
23 
24 #include "nx_secure_tls.h"
25 
26 /**************************************************************************/
27 /*                                                                        */
28 /*  FUNCTION                                               RELEASE        */
29 /*                                                                        */
30 /*    _nx_secure_tls_session_send                         PORTABLE C      */
31 /*                                                           6.1          */
32 /*  AUTHOR                                                                */
33 /*                                                                        */
34 /*    Timothy Stapko, Microsoft Corporation                               */
35 /*                                                                        */
36 /*  DESCRIPTION                                                           */
37 /*                                                                        */
38 /*    This function sends data using an active TLS session, handling      */
39 /*    all encryption and hashing before sending data over the established */
40 /*    TCP socket connection.                    .                         */
41 /*                                                                        */
42 /*  INPUT                                                                 */
43 /*                                                                        */
44 /*    tls_session                           TLS control block             */
45 /*    packet_ptr                            Pointer to packet data        */
46 /*    wait_option                           Indicates behavior if TCP     */
47 /*                                          socket cannot send packet     */
48 /*                                                                        */
49 /*  OUTPUT                                                                */
50 /*                                                                        */
51 /*    status                                Completion status             */
52 /*                                                                        */
53 /*  CALLS                                                                 */
54 /*                                                                        */
55 /*    _nx_secure_tls_send_record            Send TLS encrypted record     */
56 /*    tx_mutex_get                          Get protection mutex          */
57 /*    tx_mutex_put                          Put protection mutex          */
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 /*                                                                        */
71 /**************************************************************************/
_nx_secure_tls_session_send(NX_SECURE_TLS_SESSION * tls_session,NX_PACKET * packet_ptr,ULONG wait_option)72 UINT _nx_secure_tls_session_send(NX_SECURE_TLS_SESSION *tls_session, NX_PACKET *packet_ptr,
73                                  ULONG wait_option)
74 {
75 UINT status;
76 
77 
78     /* Get the protection. */
79     tx_mutex_get(&_nx_secure_tls_protection, TX_WAIT_FOREVER);
80 
81     status = _nx_secure_tls_send_record(tls_session, packet_ptr, NX_SECURE_TLS_APPLICATION_DATA, wait_option);
82 
83     if(status != NX_SUCCESS)
84     {
85         /* Make sure we clear keys on errors. */
86         _nx_secure_tls_session_reset(tls_session);
87     }
88 
89     /* Release the protection. */
90     tx_mutex_put(&_nx_secure_tls_protection);
91 
92     return(status);
93 }
94 
95