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 /* Bring in externs for caller checking code. */
27
28 NX_SECURE_CALLER_CHECKING_EXTERNS
29
30 /**************************************************************************/
31 /* */
32 /* FUNCTION RELEASE */
33 /* */
34 /* _nxe_secure_tls_session_sni_extension_parse PORTABLE C */
35 /* 6.1 */
36 /* AUTHOR */
37 /* */
38 /* Timothy Stapko, Microsoft Corporation */
39 /* */
40 /* DESCRIPTION */
41 /* */
42 /* This function checks for errors when parsing a TLS Server Name */
43 /* Indication extension. */
44 /* */
45 /* INPUT */
46 /* */
47 /* tls_session TLS control block */
48 /* extensions Pointer to received extensions*/
49 /* num_extensions The number of extensions */
50 /* received */
51 /* dns_name Return the name requested by */
52 /* the client */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* status Completion status */
57 /* */
58 /* CALLS */
59 /* */
60 /* _nx_secure_tls_session_sni_extension_parse */
61 /* Actual parsing function */
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_tls_session_sni_extension_parse(NX_SECURE_TLS_SESSION * tls_session,NX_SECURE_TLS_HELLO_EXTENSION * extensions,UINT num_extensions,NX_SECURE_X509_DNS_NAME * dns_name)76 UINT _nxe_secure_tls_session_sni_extension_parse(NX_SECURE_TLS_SESSION *tls_session,
77 NX_SECURE_TLS_HELLO_EXTENSION *extensions,
78 UINT num_extensions, NX_SECURE_X509_DNS_NAME *dns_name)
79 {
80 UINT status;
81
82
83 if (tls_session == NX_NULL || extensions == NX_NULL)
84 {
85 return(NX_PTR_ERROR);
86 }
87
88 /* Make sure the session is initialized. */
89 if(tls_session -> nx_secure_tls_id != NX_SECURE_TLS_ID)
90 {
91 return(NX_SECURE_TLS_SESSION_UNINITIALIZED);
92 }
93
94 /* Check for appropriate caller. */
95 NX_THREADS_ONLY_CALLER_CHECKING
96
97 /* Parse the extension and get the list of names. */
98 status = _nx_secure_tls_session_sni_extension_parse(tls_session, extensions, num_extensions, dns_name);
99
100 return(status);
101 }
102
103
