source: mod_gnutls/include/mod_gnutls.h.in @ fcb122d

debian/masterdebian/stretch-backportsjessie-backportsmsvaupstream
Last change on this file since fcb122d was fcb122d, checked in by Paul Querna <chip@…>, 14 years ago

checkpoint the work so far. The DBM cache needs a little more work.

  • Property mode set to 100644
File size: 4.8 KB
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1/**
2 *  Copyright 2004-2005 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#include "httpd.h"
19#include "http_config.h"
20#include "http_protocol.h"
21#include "http_connection.h"
22#include "http_request.h"
23#include "http_core.h"
24#include "http_log.h"
25#include "apr_buckets.h"
26#include "apr_strings.h"
27#include "apr_tables.h"
28
29#ifndef __mod_gnutls_h_inc
30#define __mod_gnutls_h_inc
31
32#define HAVE_APR_MEMCACHE    @have_apr_memcache@
33
34#include <gcrypt.h>
35#include <gnutls/gnutls.h>
36
37module AP_MODULE_DECLARE_DATA gnutls_module;
38
39#define GNUTLS_OUTPUT_FILTER_NAME "gnutls_output_filter"
40#define GNUTLS_INPUT_FILTER_NAME "gnutls_input_filter"
41
42#define GNUTLS_ENABLED_FALSE 0
43#define GNUTLS_ENABLED_TRUE  1
44
45typedef enum
46{
47    mod_gnutls_cache_none,
48    mod_gnutls_cache_dbm,
49#if HAVE_APR_MEMCACHE
50    mod_gnutls_cache_memcache
51#endif
52} mod_gnutls_cache_e;
53
54typedef struct
55{
56    gnutls_certificate_credentials_t certs;
57    gnutls_anon_server_credentials_t anoncred;
58    char *key_file;
59    char *cert_file;
60    int enabled;
61    int ciphers[16];
62    int key_exchange[16];
63    int macs[16];
64    int protocol[16];
65    int compression[16];
66    int cert_types[16];
67    apr_time_t cache_timeout;
68    mod_gnutls_cache_e cache_type;
69    const char* cache_config;
70    const char* rsa_params_file;
71    const char* dh_params_file;
72} mod_gnutls_srvconf_rec;
73
74typedef struct {
75    int length;
76    char *value;
77} mod_gnutls_char_buffer_t;
78
79typedef struct
80{
81    mod_gnutls_srvconf_rec *sc;
82    conn_rec* c;
83    gnutls_session_t session;
84
85    apr_status_t input_rc;
86    ap_filter_t *input_filter;
87    apr_bucket_brigade *input_bb;
88    apr_read_type_e input_block;
89    ap_input_mode_t input_mode;
90    mod_gnutls_char_buffer_t input_cbuf;
91    char input_buffer[AP_IOBUFSIZE];
92
93    apr_status_t output_rc;
94    ap_filter_t *output_filter;
95    apr_bucket_brigade *output_bb;
96    char output_buffer[AP_IOBUFSIZE];
97    apr_size_t output_blen;
98    apr_size_t output_length;
99
100    int status;
101    int non_https;
102} mod_gnutls_handle_t;
103
104/** Functions in gnutls_io.c **/
105
106/**
107 * mod_gnutls_filter_input will filter the input data
108 * by decrypting it using GnuTLS and passes it cleartext.
109 *
110 * @param f     the filter info record
111 * @param bb    the bucket brigade, where to store the result to
112 * @param mode  what shall we read?
113 * @param block a block index we shall read from?
114 * @return result status
115 */
116apr_status_t mod_gnutls_filter_input(ap_filter_t * f,
117                                     apr_bucket_brigade * bb,
118                                     ap_input_mode_t mode,
119                                     apr_read_type_e block,
120                                     apr_off_t readbytes);
121
122/**
123 * mod_gnutls_filter_output will filter the encrypt
124 * the incoming bucket using GnuTLS and passes it onto the next filter.
125 *
126 * @param f     the filter info record
127 * @param bb    the bucket brigade, where to store the result to
128 * @return result status
129 */
130apr_status_t mod_gnutls_filter_output(ap_filter_t * f,
131                                      apr_bucket_brigade * bb);
132
133
134/**
135 * mod_gnutls_transport_read is called from GnuTLS to provide encrypted
136 * data from the client.
137 *
138 * @param ptr     pointer to the filter context
139 * @param buffer  place to put data
140 * @param len     maximum size
141 * @return size   length of the data stored in buffer
142 */
143ssize_t mod_gnutls_transport_read(gnutls_transport_ptr_t ptr,
144                                  void *buffer, size_t len);
145
146/**
147 * mod_gnutls_transport_write is called from GnuTLS to
148 * write data to the client.
149 *
150 * @param ptr     pointer to the filter context
151 * @param buffer  buffer to write to the client
152 * @param len     size of the buffer
153 * @return size   length of the data written
154 */
155ssize_t mod_gnutls_transport_write(gnutls_transport_ptr_t ptr,
156                                   const void *buffer, size_t len);
157
158
159/**
160 * Init the Cache after Configuration is done
161 */
162int mod_gnutls_cache_post_config(apr_pool_t *p, server_rec *s,
163                                 mod_gnutls_srvconf_rec *sc);
164/**
165 * Init the Cache inside each Process
166 */
167int mod_gnutls_cache_child_init(apr_pool_t *p, server_rec *s,
168                                mod_gnutls_srvconf_rec *sc);
169/**
170 * Setup the Session Caching
171 */
172int mod_gnutls_cache_session_init(mod_gnutls_handle_t *ctxt);
173
174#endif /*  __mod_gnutls_h_inc */
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