source: mod_gnutls/src/mod_gnutls.c @ 5674676

debian/masterdebian/stretch-backportsjessie-backportsupstream
Last change on this file since 5674676 was cf2b905, checked in by Daniel Kahn Gillmor <dkg@…>, 6 years ago

MSVA: document and parse GnuTLSClientVerifyMethod directive

The directive currently doesn't do anything, but this commit makes it
a legal and parseable directive.

  • Property mode set to 100644
File size: 6.6 KB
Line 
1/**
2 *  Copyright 2004-2005 Paul Querna
3 *  Copyright 2008 Nikos Mavrogiannopoulos
4 *  Copyright 2011 Dash Shendy
5 *
6 *  Licensed under the Apache License, Version 2.0 (the "License");
7 *  you may not use this file except in compliance with the License.
8 *  You may obtain a copy of the License at
9 *
10 *      http://www.apache.org/licenses/LICENSE-2.0
11 *
12 *  Unless required by applicable law or agreed to in writing, software
13 *  distributed under the License is distributed on an "AS IS" BASIS,
14 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 *  See the License for the specific language governing permissions and
16 *  limitations under the License.
17 *
18 */
19
20#include "mod_gnutls.h"
21
22static void gnutls_hooks(apr_pool_t * p) {
23   
24    /* Try Run Post-Config Hook After mod_proxy */
25    static const char * const aszPre[] = { "mod_proxy.c", NULL };
26    ap_hook_post_config(mgs_hook_post_config, aszPre, NULL,APR_HOOK_REALLY_LAST); 
27    /* HTTP Scheme Hook */
28#if USING_2_1_RECENT
29    ap_hook_http_scheme(mgs_hook_http_scheme, NULL, NULL, APR_HOOK_MIDDLE);
30#else
31    ap_hook_http_method(mgs_hook_http_scheme, NULL, NULL, APR_HOOK_MIDDLE);
32#endif
33    /* Default Port Hook */
34    ap_hook_default_port(mgs_hook_default_port,  NULL,NULL, APR_HOOK_MIDDLE);
35    /* Pre-Connect Hook */
36    ap_hook_pre_connection(mgs_hook_pre_connection, NULL, NULL, APR_HOOK_MIDDLE);
37    /* Pre-Config Hook */
38    ap_hook_pre_config(mgs_hook_pre_config, NULL, NULL,
39            APR_HOOK_MIDDLE);   
40    /* Child-Init Hook */
41    ap_hook_child_init(mgs_hook_child_init, NULL, NULL,
42            APR_HOOK_MIDDLE);
43    /* Authentication Hook */
44    ap_hook_access_checker(mgs_hook_authz, NULL, NULL,
45            APR_HOOK_REALLY_FIRST);
46    /* Fixups Hook */
47    ap_hook_fixups(mgs_hook_fixups, NULL, NULL, APR_HOOK_REALLY_FIRST);
48
49    /* TODO: HTTP Upgrade Filter */
50    /* ap_register_output_filter ("UPGRADE_FILTER",
51     *          ssl_io_filter_Upgrade, NULL, AP_FTYPE_PROTOCOL + 5);
52     */
53
54    /* Input Filter */
55    ap_register_input_filter(GNUTLS_INPUT_FILTER_NAME,
56            mgs_filter_input, NULL,AP_FTYPE_CONNECTION + 5);
57    /* Output Filter */
58    ap_register_output_filter(GNUTLS_OUTPUT_FILTER_NAME,
59            mgs_filter_output, NULL,AP_FTYPE_CONNECTION + 5);
60   
61    /* mod_proxy calls these functions */
62    APR_REGISTER_OPTIONAL_FN(ssl_proxy_enable);
63    APR_REGISTER_OPTIONAL_FN(ssl_engine_disable);
64}
65
66int ssl_is_https(conn_rec *c) {
67    mgs_srvconf_rec *sc = (mgs_srvconf_rec *) 
68            ap_get_module_config(c->base_server->module_config, &gnutls_module);
69    if(sc->enabled == 0 || sc->non_ssl_request == 1) {
70        /* SSL/TLS Disabled or Plain HTTP Connection Detected */
71        return 0;
72    }
73    /* Connection is Using SSL/TLS */
74    return 1;
75}
76
77int ssl_engine_disable(conn_rec *c) {
78    mgs_srvconf_rec *sc = (mgs_srvconf_rec *) 
79            ap_get_module_config(c->base_server->module_config, &gnutls_module);
80    if(sc->enabled == GNUTLS_ENABLED_FALSE) {
81        return 1;
82    } 
83    ap_remove_input_filter(c->input_filters);
84    ap_remove_input_filter(c->output_filters);
85    mgs_cleanup_pre_config(c->pool);
86    sc->enabled = 0;
87    return 1;
88}
89
90int ssl_proxy_enable(conn_rec *c) {
91    mgs_srvconf_rec *sc = (mgs_srvconf_rec *) 
92            ap_get_module_config(c->base_server->module_config, &gnutls_module);
93    sc->proxy_enabled = 1;
94    sc->enabled = 0;
95    return 1;
96}
97
98static const command_rec mgs_config_cmds[] = {
99    AP_INIT_TAKE1("SSLProxyEngine", mgs_set_proxy_engine,
100    NULL,
101    RSRC_CONF | OR_AUTHCFG,
102    "Enable SSL Proxy Engine"),
103    AP_INIT_TAKE1("GnuTLSClientVerify", mgs_set_client_verify,
104    NULL,
105    RSRC_CONF | OR_AUTHCFG,
106    "Set Verification Requirements of the Client Certificate"),
107    AP_INIT_TAKE1("GnuTLSClientVerifyMethod", mgs_set_client_verify_method,
108    NULL,
109    RSRC_CONF,
110    "Set Verification Method of the Client Certificate"),
111    AP_INIT_TAKE1("GnuTLSClientCAFile", mgs_set_client_ca_file,
112    NULL,
113    RSRC_CONF,
114    "Set the CA File to verify Client Certificates"),
115    AP_INIT_TAKE1("GnuTLSX509CAFile", mgs_set_client_ca_file,
116    NULL,
117    RSRC_CONF,
118    "Set the CA File to verify Client Certificates"),
119    AP_INIT_TAKE1("GnuTLSPGPKeyringFile", mgs_set_keyring_file,
120    NULL,
121    RSRC_CONF,
122    "Set the Keyring File to verify Client Certificates"),
123    AP_INIT_TAKE1("GnuTLSDHFile", mgs_set_dh_file,
124    NULL,
125    RSRC_CONF,
126    "Set the file to read Diffie Hellman parameters from"),
127    AP_INIT_TAKE1("GnuTLSCertificateFile", mgs_set_cert_file,
128    NULL,
129    RSRC_CONF,
130    "SSL Server X509 Certificate file"),
131    AP_INIT_TAKE1("GnuTLSKeyFile", mgs_set_key_file,
132    NULL,
133    RSRC_CONF,
134    "SSL Server X509 Private Key file"),
135    AP_INIT_TAKE1("GnuTLSX509CertificateFile", mgs_set_cert_file,
136    NULL,
137    RSRC_CONF,
138    "SSL Server X509 Certificate file"),
139    AP_INIT_TAKE1("GnuTLSX509KeyFile", mgs_set_key_file,
140    NULL,
141    RSRC_CONF,
142    "SSL Server X509 Private Key file"),
143    AP_INIT_TAKE1("GnuTLSPGPCertificateFile", mgs_set_pgpcert_file,
144    NULL,
145    RSRC_CONF,
146    "SSL Server PGP Certificate file"),
147    AP_INIT_TAKE1("GnuTLSPGPKeyFile", mgs_set_pgpkey_file,
148    NULL,
149    RSRC_CONF,
150    "SSL Server PGP Private key file"),
151#ifdef ENABLE_SRP
152    AP_INIT_TAKE1("GnuTLSSRPPasswdFile", mgs_set_srp_tpasswd_file,
153    NULL,
154    RSRC_CONF,
155    "SSL Server SRP Password Conf file"),
156    AP_INIT_TAKE1("GnuTLSSRPPasswdConfFile",
157    mgs_set_srp_tpasswd_conf_file,
158    NULL,
159    RSRC_CONF,
160    "SSL Server SRP Parameters file"),
161#endif
162    AP_INIT_TAKE1("GnuTLSCacheTimeout", mgs_set_cache_timeout,
163    NULL,
164    RSRC_CONF,
165    "Cache Timeout"),
166    AP_INIT_TAKE12("GnuTLSCache", mgs_set_cache,
167    NULL,
168    RSRC_CONF,
169    "Cache Configuration"),
170    AP_INIT_TAKE1("GnuTLSSessionTickets", mgs_set_tickets,
171    NULL,
172    RSRC_CONF,
173    "Session Tickets Configuration"),
174    AP_INIT_RAW_ARGS("GnuTLSPriorities", mgs_set_priorities,
175    NULL,
176    RSRC_CONF,
177    "The priorities to enable (ciphers, Key exchange, macs, compression)."),
178    AP_INIT_TAKE1("GnuTLSEnable", mgs_set_enabled,
179    NULL,
180    RSRC_CONF,
181    "Whether this server has GnuTLS Enabled. Default: Off"),
182    AP_INIT_TAKE1("GnuTLSExportCertificates",
183    mgs_set_export_certificates_enabled,
184    NULL,
185    RSRC_CONF,
186    "Whether to export PEM encoded certificates to CGIs. Default: Off"),
187    { NULL },
188};
189
190module AP_MODULE_DECLARE_DATA gnutls_module = {
191    STANDARD20_MODULE_STUFF,
192    .create_dir_config = mgs_config_dir_create,
193    .merge_dir_config = mgs_config_dir_merge,
194    .create_server_config = mgs_config_server_create,
195    .merge_server_config = mgs_config_server_merge,
196    .cmds = mgs_config_cmds,
197    .register_hooks = gnutls_hooks
198};
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