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 /** Transport Layer Security (TLS) */
19 /** */
20 /**************************************************************************/
21 /**************************************************************************/
22
23 #define NX_SECURE_SOURCE_CODE
24
25
26 /* Include necessary system files. */
27
28 #include "nx_secure_tls.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_tls_remote_certificate_allocate 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 TLS remote certificate */
47 /* allocate call. */
48 /* */
49 /* INPUT */
50 /* */
51 /* tls_session Pointer to TLS Session */
52 /* certificate Pointer to certificate */
53 /* raw_certificate_buffer Buffer for storing cert */
54 /* buffer_size Size of cert buffer */
55 /* */
56 /* OUTPUT */
57 /* */
58 /* status Completion status */
59 /* */
60 /* CALLS */
61 /* */
62 /* _nx_secure_tls_remote_certificate_allocate */
63 /* Actual remote certificate */
64 /* allocate call */
65 /* */
66 /* CALLED BY */
67 /* */
68 /* Application Code */
69 /* */
70 /* RELEASE HISTORY */
71 /* */
72 /* DATE NAME DESCRIPTION */
73 /* */
74 /* 05-19-2020 Timothy Stapko Initial Version 6.0 */
75 /* 09-30-2020 Timothy Stapko Modified comment(s), */
76 /* resulting in version 6.1 */
77 /* */
78 /**************************************************************************/
_nxe_secure_tls_remote_certificate_allocate(NX_SECURE_TLS_SESSION * tls_session,NX_SECURE_X509_CERT * certificate,UCHAR * raw_certificate_buffer,UINT buffer_size)79 UINT _nxe_secure_tls_remote_certificate_allocate(NX_SECURE_TLS_SESSION *tls_session,
80 NX_SECURE_X509_CERT *certificate,
81 UCHAR *raw_certificate_buffer, UINT buffer_size)
82 {
83 UINT status;
84
85
86
87 /* Remote certificates must be assigned a buffer for parsing. */
88 if ((tls_session == NX_NULL) || (certificate == NX_NULL) || (raw_certificate_buffer == NX_NULL))
89 {
90 return(NX_PTR_ERROR);
91 }
92
93 /* Make sure the session is initialized. */
94 if(tls_session -> nx_secure_tls_id != NX_SECURE_TLS_ID)
95 {
96 return(NX_SECURE_TLS_SESSION_UNINITIALIZED);
97 }
98
99 if (buffer_size == 0)
100 {
101 return(NX_SECURE_TLS_INSUFFICIENT_CERT_SPACE);
102 }
103
104 /* Check for appropriate caller. */
105 NX_THREADS_ONLY_CALLER_CHECKING
106
107 status = _nx_secure_tls_remote_certificate_allocate(tls_session, certificate, (UCHAR *)raw_certificate_buffer, buffer_size);
108
109 /* Return completion status. */
110 return(status);
111 }
112
113
