1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/* ====================================================================
* Copyright 2004 Paul Querna
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef __mod_gnutls_h_inc
#define __mod_gnutls_h_inc
#include "httpd.h"
#include "http_config.h"
#include "http_protocol.h"
#include "http_connection.h"
#include "http_core.h"
#include "http_log.h"
#include "apr_buckets.h"
#include "apr_strings.h"
#include "apr_tables.h"
#include <gcrypt.h>
#include <gnutls/gnutls.h>
module AP_MODULE_DECLARE_DATA gnutls_module;
#define GNUTLS_OUTPUT_FILTER_NAME "gnutls_output_filter"
#define GNUTLS_INPUT_FILTER_NAME "gnutls_input_filter"
#define GNUTLS_ENABLED_FALSE 0
#define GNUTLS_ENABLED_TRUE 1
typedef struct
{
gnutls_certificate_credentials_t certs;
gnutls_anon_server_credentials_t anoncred;
char *key_file;
char *cert_file;
int enabled;
int ciphers[16];
int key_exchange[16];
int macs[16];
int protocol[16];
int compression[16];
} gnutls_srvconf_rec;
typedef struct gnutls_handle_t gnutls_handle_t;
struct gnutls_handle_t
{
gnutls_srvconf_rec *sc;
gnutls_session_t session;
ap_filter_t *input_filter;
apr_bucket_brigade *input_bb;
apr_read_type_e input_block;
int status;
int non_https;
};
/** Functions in gnutls_io.c **/
/**
* mod_gnutls_filter_input will filter the input data
* by decrypting it using GnuTLS and passes it cleartext.
*
* @param f the filter info record
* @param bb the bucket brigade, where to store the result to
* @param mode what shall we read?
* @param block a block index we shall read from?
* @return result status
*/
apr_status_t mod_gnutls_filter_input(ap_filter_t * f,
apr_bucket_brigade * bb,
ap_input_mode_t mode,
apr_read_type_e block, apr_off_t readbytes);
/**
* mod_gnutls_filter_output will filter the encrypt
* the incoming bucket using GnuTLS and passes it onto the next filter.
*
* @param f the filter info record
* @param bb the bucket brigade, where to store the result to
* @return result status
*/
apr_status_t mod_gnutls_filter_output(ap_filter_t * f, apr_bucket_brigade * bb);
/**
* mod_gnutls_transport_read is called from GnuTLS to provide encrypted
* data from the client.
*
* @param ptr pointer to the filter context
* @param buffer place to put data
* @param len maximum size
* @return size length of the data stored in buffer
*/
ssize_t mod_gnutls_transport_read(gnutls_transport_ptr_t ptr,
void *buffer, size_t len);
/**
* mod_gnutls_transport_write is called from GnuTLS to
* write data to the client.
*
* @param ptr pointer to the filter context
* @param buffer buffer to write to the client
* @param len size of the buffer
* @return size length of the data written
*/
ssize_t mod_gnutls_transport_write(gnutls_transport_ptr_t ptr,
const void *buffer, size_t len);
#endif /* __mod_gnutls_h_inc */
|
