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gerrit.opencord.org / freeDiameter-old / 13b0e7de0d66906d50e074a339f890d6e59813ad / . / extensions / app_diameap / diameap_tls.h
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Brian Waters13d96012017-12-08 16:53:31 -0600[diff] [blame]1/*****************************************************************************************************
2 * Software License Agreement (BSD License)
3 * Author : Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
4 *
5 * Copyright (c) 2009-2010, Souheil Ben Ayed, Teraoka Laboratory of Keio University, and the WIDE Project
6 * All rights reserved.
7 *
8 * Redistribution and use of this software in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>.
21 *
22 * 4. Neither the name of Souheil Ben Ayed, Teraoka Laboratory of Keio University or the WIDE Project nor the
23 * names of its contributors may be used to endorse or promote products
24 * derived from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS'' AND ANY
27 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
30 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 *****************************************************************************************************/
37
38
39#ifndef DIAMEAP_TLS_H_
40#define DIAMEAP_TLS_H_
41
42#if defined(__GNUC__)
43# define GCC_DIAG_DO_PRAGMA(x) _Pragma (#x)
44# define GCC_DIAG_PRAGMA(x) GCC_DIAG_DO_PRAGMA(GCC diagnostic x)
45# if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406 /* 4.6.x */
46# define GCC_DIAG_OFF(x) GCC_DIAG_PRAGMA(push) \
47 GCC_DIAG_PRAGMA(ignored x)
48# define GCC_DIAG_ON(x) GCC_DIAG_PRAGMA(pop)
49# else /* older */
50# define GCC_DIAG_OFF(x) GCC_DIAG_PRAGMA(ignored x)
51# define GCC_DIAG_ON(x) GCC_DIAG_PRAGMA(warning x)
52# endif
53#else
54# define GCC_DIAG_OFF(x)
55# define GCC_DIAG_ON(x)
56#endif
57
58
59#include "diameap_defs.h"
60#include <gnutls/gnutls.h>
61GCC_DIAG_OFF("-Wdeprecated-declarations")
62#include <gcrypt.h>
63GCC_DIAG_ON("-Wdeprecated-declarations")
64#include <errno.h>
65#include <pthread.h>
66
67
68
69#define TLS_FLAG_LENGTH 0x80
70#define TLS_FLAG_MORE 0x40
71#define TLS_FLAG_START 0x20
72
73struct tls_config{
74 char * conffile;
75 //certificates
76 char * keyfile;
77 char * certfile;
78 char * cafile;
79 char * crlfile;
80
81 //configuration parameters
82 boolean check_cert_cn_username;
83
84 int max_size;
85
86 gnutls_certificate_credentials_t cert_cred;
87};
88
89struct tls_msg{
90 u8 flags;
91 u32 length;
92 u8 *data;
93 u32 datalength;
94};
95
96struct tls_data
97{
98 gnutls_session_t session;
99 enum { START, CONTINUE, SUCCESS, FAILURE } state;
100 struct tls_msg tlsReq;
101 int p_length; /* length of buffer still not returned to handshake */
102 struct tls_msg tlsResp;
103 int more_tosend_length; /* 0 if no more fragment to send. Otherwise the length of the buff not yet sent */
104 boolean more_toreceive; /* TRUE if wait for more fragments. */
105 boolean handshake; /* TRUE if handshake terminated successful. */
106};
107
108int diameap_tls_init(struct tls_config * tls_conf );
109void diameap_tls_log(int lev, const char * text);
110int diameap_tls_init_session(struct tls_config * tls_conf, struct tls_data * data);
111int diameap_tls_new(struct tls_msg * tlsmsg);
112
113int diameap_tls_get_message_length(struct tls_msg tlsmsg, u32 * length);
114int diameap_tls_set_message_length(struct tls_msg * tlsmsg, u32 length);
115
116int diameap_tls_get_flags(struct tls_msg tlsmsg, u8 * flags);
117int diameap_tls_set_flags(struct tls_msg * tlsmsg, u8 flags);
118
119int diameap_tls_get_data(struct tls_msg tlsmsg, u8** tls_data, u32 * data_length);
120int diameap_tls_set_data(struct tls_msg * tlsmsg, u8* tls_data, int data_length);
121
122int diameap_tls_parse(u8* data, int length, struct tls_msg * tlsmsg);
123
124int diameap_tls_new_tls_packet(u8** data, int * len, struct tls_msg tlsmsg);
125
126int diameap_set_tls(struct tls_msg * tlsmsg, u8 flags, u32 length,u8 *tls_data, int data_length);
127
128void diameap_tls_dump(struct tls_msg tlsmsg);
129
130int diameap_tls_initialize(struct tls_data * data);
131
132int diameap_tls_reassemble(struct tls_msg * to,struct tls_msg from);
133
134int diameap_tls_copy(struct tls_msg * to,struct tls_msg from);
135
136int diameap_tls_process_receive(struct tls_data * data);
137
138ssize_t diameap_tls_receive(gnutls_transport_ptr_t data , void *buffer, size_t length);
139ssize_t diameap_tls_send(gnutls_transport_ptr_t data , const void *buffer, size_t length);
140
141#endif /* DIAMEAP_TLS_H_ */