source: mod_gnutls/include/mod_gnutls.h.in @ 6d4de37

debian/masterdebian/stretch-backportsjessie-backportsmsvaupstream
Last change on this file since 6d4de37 was 6d4de37, checked in by Nokis Mavrogiannopoulos <nmav@…>, 11 years ago

modified definition to extern to avoid compilation errors in darwin.

  • Property mode set to 100644
File size: 9.6 KB
Line 
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#include "ap_release.h"
29
30#include <gcrypt.h>
31#include <gnutls/gnutls.h>
32#include <gnutls/extra.h>
33#include <gnutls/openpgp.h>
34#include <gnutls/x509.h>
35
36#ifndef __mod_gnutls_h_inc
37#define __mod_gnutls_h_inc
38
39#define HAVE_APR_MEMCACHE    @have_apr_memcache@
40
41extern module AP_MODULE_DECLARE_DATA gnutls_module;
42
43#define GNUTLS_OUTPUT_FILTER_NAME "gnutls_output_filter"
44#define GNUTLS_INPUT_FILTER_NAME "gnutls_input_filter"
45
46#define GNUTLS_ENABLED_FALSE 0
47#define GNUTLS_ENABLED_TRUE  1
48
49#define MOD_GNUTLS_VERSION "@MOD_GNUTLS_VERSION@"
50
51#define MOD_GNUTLS_DEBUG @OOO_MAINTAIN@
52
53/* Recent Versions of 2.1 renamed several hooks. This allows us to
54   compile on 2.0.xx  */
55#if AP_SERVER_MINORVERSION_NUMBER >= 1
56#if AP_SERVER_PATCHLEVEL_NUMBER >= 3
57#define USING_2_1_RECENT 1
58#endif
59#endif
60
61#ifndef USING_2_1_RECENT
62#define USING_2_1_RECENT 0
63#endif
64
65typedef enum
66{
67    mgs_cache_none,
68    mgs_cache_dbm,
69#if HAVE_APR_MEMCACHE
70    mgs_cache_memcache
71#endif
72} mgs_cache_e;
73
74typedef struct
75{
76    int client_verify_mode;
77    const char* lua_bytecode;
78    apr_size_t lua_bytecode_len;
79} mgs_dirconf_rec;
80
81
82/* The maximum number of client CA certificates allowed.
83 */
84#define MAX_CA_CRTS 128
85
86/* The maximum number of certificates to send in a chain
87 */
88#define MAX_CHAIN_SIZE 8
89
90typedef struct
91{
92    gnutls_certificate_credentials_t certs;
93    gnutls_srp_server_credentials_t srp_creds;
94    gnutls_anon_server_credentials_t anon_creds;
95    char* cert_cn;
96    gnutls_x509_crt_t certs_x509[MAX_CHAIN_SIZE]; /* A certificate chain */
97    unsigned int certs_x509_num;
98    gnutls_x509_privkey_t privkey_x509;
99    gnutls_openpgp_crt_t cert_pgp; /* A certificate chain */
100    gnutls_openpgp_privkey_t privkey_pgp;
101    int enabled;
102    /* whether to send the PEM encoded certificates
103     * to CGIs
104     */
105    int export_certificates_enabled;
106    gnutls_priority_t priorities;
107    gnutls_rsa_params_t rsa_params;
108    gnutls_dh_params_t dh_params;
109    int cache_timeout;
110    mgs_cache_e cache_type;
111    const char* cache_config;
112    const char* srp_tpasswd_file;
113    const char* srp_tpasswd_conf_file;
114    gnutls_x509_crt_t ca_list[MAX_CA_CRTS];
115    gnutls_openpgp_keyring_t pgp_list;
116    unsigned int ca_list_size;
117    int client_verify_mode;
118} mgs_srvconf_rec;
119
120typedef struct {
121    int length;
122    char *value;
123} mgs_char_buffer_t;
124
125typedef struct
126{
127    mgs_srvconf_rec *sc;
128    conn_rec* c;
129    gnutls_session_t session;
130
131    apr_status_t input_rc;
132    ap_filter_t *input_filter;
133    apr_bucket_brigade *input_bb;
134    apr_read_type_e input_block;
135    ap_input_mode_t input_mode;
136    mgs_char_buffer_t input_cbuf;
137    char input_buffer[AP_IOBUFSIZE];
138
139    apr_status_t output_rc;
140    ap_filter_t *output_filter;
141    apr_bucket_brigade *output_bb;
142    char output_buffer[AP_IOBUFSIZE];
143    apr_size_t output_blen;
144    apr_size_t output_length;
145
146    int status;
147    int non_https;
148} mgs_handle_t;
149
150/** Functions in gnutls_io.c **/
151
152/**
153 * mgs_filter_input will filter the input data
154 * by decrypting it using GnuTLS and passes it cleartext.
155 *
156 * @param f     the filter info record
157 * @param bb    the bucket brigade, where to store the result to
158 * @param mode  what shall we read?
159 * @param block a block index we shall read from?
160 * @return result status
161 */
162apr_status_t mgs_filter_input(ap_filter_t * f,
163                                     apr_bucket_brigade * bb,
164                                     ap_input_mode_t mode,
165                                     apr_read_type_e block,
166                                     apr_off_t readbytes);
167
168/**
169 * mgs_filter_output will filter the encrypt
170 * the incoming bucket using GnuTLS and passes it onto the next filter.
171 *
172 * @param f     the filter info record
173 * @param bb    the bucket brigade, where to store the result to
174 * @return result status
175 */
176apr_status_t mgs_filter_output(ap_filter_t * f,
177                                      apr_bucket_brigade * bb);
178
179
180/**
181 * mgs_transport_read is called from GnuTLS to provide encrypted
182 * data from the client.
183 *
184 * @param ptr     pointer to the filter context
185 * @param buffer  place to put data
186 * @param len     maximum size
187 * @return size   length of the data stored in buffer
188 */
189ssize_t mgs_transport_read(gnutls_transport_ptr_t ptr,
190                                  void *buffer, size_t len);
191
192/**
193 * mgs_transport_write is called from GnuTLS to
194 * write data to the client.
195 *
196 * @param ptr     pointer to the filter context
197 * @param buffer  buffer to write to the client
198 * @param len     size of the buffer
199 * @return size   length of the data written
200 */
201ssize_t mgs_transport_write(gnutls_transport_ptr_t ptr,
202                                   const void *buffer, size_t len);
203
204
205int mgs_rehandshake(mgs_handle_t * ctxt);
206
207
208
209/**
210 * Init the Cache after Configuration is done
211 */
212int mgs_cache_post_config(apr_pool_t *p, server_rec *s,
213                                 mgs_srvconf_rec *sc);
214/**
215 * Init the Cache inside each Process
216 */
217int mgs_cache_child_init(apr_pool_t *p, server_rec *s,
218                                mgs_srvconf_rec *sc);
219/**
220 * Setup the Session Caching
221 */
222int mgs_cache_session_init(mgs_handle_t *ctxt);
223
224#define GNUTLS_SESSION_ID_STRING_LEN \
225    ((GNUTLS_MAX_SESSION_ID + 1) * 2)
226   
227/**
228 * Convert a SSL Session ID into a Null Terminated Hex Encoded String
229 * @param id raw SSL Session ID
230 * @param idlen Length of the raw Session ID
231 * @param str Location to store the Hex Encoded String
232 * @param strsize The Maximum Length that can be stored in str
233 */
234char *mgs_session_id2sz(unsigned char *id, int idlen,
235                                char *str, int strsize);
236
237/**
238 * Convert a time_t into a Null Terminated String
239 * @param t time_t time
240 * @param str Location to store the Hex Encoded String
241 * @param strsize The Maximum Length that can be stored in str
242 */
243char *mgs_time2sz(time_t t, char *str, int strsize);
244
245
246/* Configuration Functions */
247
248const char *mgs_set_srp_tpasswd_conf_file(cmd_parms * parms, void *dummy,
249                                        const char *arg);
250const char *mgs_set_srp_tpasswd_file(cmd_parms * parms, void *dummy,
251                                        const char *arg);
252const char *mgs_set_dh_file(cmd_parms * parms, void *dummy,
253                                        const char *arg);
254const char *mgs_set_rsa_export_file(cmd_parms * parms, void *dummy,
255                                        const char *arg);
256const char *mgs_set_cert_file(cmd_parms * parms, void *dummy,
257                                        const char *arg);
258
259const char *mgs_set_key_file(cmd_parms * parms, void *dummy,
260                             const char *arg);
261
262const char *mgs_set_pgpcert_file(cmd_parms * parms, void *dummy,
263                                        const char *arg);
264
265const char *mgs_set_pgpkey_file(cmd_parms * parms, void *dummy,
266                             const char *arg);
267
268const char *mgs_set_cache(cmd_parms * parms, void *dummy,
269                          const char *type, const char* arg);
270
271const char *mgs_set_cache_timeout(cmd_parms * parms, void *dummy,
272                                  const char *arg);
273
274const char *mgs_set_client_verify(cmd_parms * parms, void *dummy,
275                                  const char *arg);
276
277const char *mgs_set_client_ca_file(cmd_parms * parms, void *dummy,
278                                   const char *arg);
279
280const char *mgs_set_keyring_file(cmd_parms * parms, void *dummy,
281                                   const char *arg);
282
283const char *mgs_set_enabled(cmd_parms * parms, void *dummy,
284                            const char *arg);
285const char *mgs_set_export_certificates_enabled(cmd_parms * parms, void *dummy,
286                            const char *arg);
287const char *mgs_set_priorities(cmd_parms * parms, void *dummy,
288                            const char *arg);
289                           
290const char *mgs_set_require_section(cmd_parms *cmd,
291                                    void *mconfig, const char *arg);
292void *mgs_config_server_create(apr_pool_t * p, server_rec * s);
293
294void *mgs_config_dir_merge(apr_pool_t *p, void *basev, void *addv);
295
296void *mgs_config_dir_create(apr_pool_t *p, char *dir);
297
298const char *mgs_set_require_bytecode(cmd_parms *cmd,
299                                    void *mconfig, const char *arg);
300
301mgs_srvconf_rec* mgs_find_sni_server(gnutls_session_t session);
302
303/* mod_gnutls Hooks. */
304
305int mgs_hook_pre_config(apr_pool_t * pconf,
306                        apr_pool_t * plog, apr_pool_t * ptemp);
307
308int mgs_hook_post_config(apr_pool_t * p, apr_pool_t * plog,
309                         apr_pool_t * ptemp,
310                         server_rec * base_server);
311
312void mgs_hook_child_init(apr_pool_t *p, server_rec *s);
313
314const char *mgs_hook_http_scheme(const request_rec * r);
315
316apr_port_t mgs_hook_default_port(const request_rec * r);
317
318int mgs_hook_pre_connection(conn_rec * c, void *csd);
319
320int mgs_hook_fixups(request_rec *r);
321
322int mgs_hook_authz(request_rec *r);
323
324int mgs_authz_lua(request_rec* r);
325
326#endif /*  __mod_gnutls_h_inc */
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