source: mod_gnutls/include/mod_gnutls.h @ 7e2b223

debian/masterdebian/stretch-backportsjessie-backportsmsvaupstream
Last change on this file since 7e2b223 was 7e2b223, checked in by Paul Querna <chip@…>, 15 years ago

break up the IO functions into their own file

  • Property mode set to 100644
File size: 3.5 KB
Line 
1/* ====================================================================
2 *  Copyright 2004 Paul Querna
3 *
4 *  Licensed under the Apache License, Version 2.0 (the "License");
5 *  you may not use this file except in compliance with the License.
6 *  You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 *  Unless required by applicable law or agreed to in writing, software
11 *  distributed under the License is distributed on an "AS IS" BASIS,
12 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 *  See the License for the specific language governing permissions and
14 *  limitations under the License.
15 *
16 */
17
18#ifndef __mod_gnutls_h_inc
19#define __mod_gnutls_h_inc
20
21#include "httpd.h"
22#include "http_config.h"
23#include "http_protocol.h"
24#include "http_connection.h"
25#include "http_core.h"
26#include "http_log.h"
27#include "apr_buckets.h"
28#include "apr_strings.h"
29#include "apr_tables.h"
30
31#include <gcrypt.h>
32#include <gnutls/gnutls.h>
33
34module AP_MODULE_DECLARE_DATA gnutls_module;
35
36#define GNUTLS_OUTPUT_FILTER_NAME "gnutls_output_filter"
37#define GNUTLS_INPUT_FILTER_NAME "gnutls_input_filter"
38
39#define GNUTLS_ENABLED_FALSE 0
40#define GNUTLS_ENABLED_TRUE  1
41
42
43typedef struct
44{
45    gnutls_certificate_credentials_t certs;
46    gnutls_anon_server_credentials_t anoncred;
47    char *key_file;
48    char *cert_file;
49    int enabled;
50    int ciphers[16];
51    int key_exchange[16];
52    int macs[16];
53    int protocol[16];
54    int compression[16];
55} gnutls_srvconf_rec;
56
57typedef struct gnutls_handle_t gnutls_handle_t;
58struct gnutls_handle_t
59{
60    gnutls_srvconf_rec *sc;
61    gnutls_session_t session;
62    ap_filter_t *input_filter;
63    apr_bucket_brigade *input_bb;
64    apr_read_type_e input_block;
65    int status;
66    int non_https;
67};
68
69/** Functions in gnutls_io.c **/
70
71/**
72 * mod_gnutls_filter_input will filter the input data
73 * by decrypting it using GnuTLS and passes it cleartext.
74 *
75 * @param f     the filter info record
76 * @param bb    the bucket brigade, where to store the result to
77 * @param mode  what shall we read?
78 * @param block a block index we shall read from?
79 * @return result status
80 */
81apr_status_t mod_gnutls_filter_input(ap_filter_t * f,
82                                 apr_bucket_brigade * bb,
83                                 ap_input_mode_t mode,
84                                 apr_read_type_e block, apr_off_t readbytes);
85
86/**
87 * mod_gnutls_filter_output will filter the encrypt
88 * the incoming bucket using GnuTLS and passes it onto the next filter.
89 *
90 * @param f     the filter info record
91 * @param bb    the bucket brigade, where to store the result to
92 * @return result status
93 */
94apr_status_t mod_gnutls_filter_output(ap_filter_t * f, apr_bucket_brigade * bb);
95
96
97/**
98 * mod_gnutls_transport_read is called from GnuTLS to provide encrypted
99 * data from the client.
100 *
101 * @param ptr     pointer to the filter context
102 * @param buffer  place to put data
103 * @param len     maximum size
104 * @return size   length of the data stored in buffer
105 */
106ssize_t mod_gnutls_transport_read(gnutls_transport_ptr_t ptr,
107                                     void *buffer, size_t len);
108
109/**
110 * mod_gnutls_transport_write is called from GnuTLS to
111 * write data to the client.
112 *
113 * @param ptr     pointer to the filter context
114 * @param buffer  buffer to write to the client
115 * @param len     size of the buffer
116 * @return size   length of the data written
117 */
118ssize_t mod_gnutls_transport_write(gnutls_transport_ptr_t ptr,
119                                      const void *buffer, size_t len);
120
121
122#endif /*  __mod_gnutls_h_inc */
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