diff options
author | Paul Querna | 2005-04-24 22:21:50 +0000 |
---|---|---|
committer | Paul Querna | 2005-04-24 22:21:50 +0000 |
commit | c301152dbbdf13c4bf212c7982b948c21149468d (patch) | |
tree | 311447345aca9ee56f930428843aef6a7e48569d /src/mod_gnutls.c | |
parent | 46b85d8e3634f34c0142823d92b037dd33b67898 (diff) |
- move hooks to gnutls_hooks.c
- use 'mgs_' as the prefix for all symbols, instead of mixed prefixes.
Diffstat (limited to 'src/mod_gnutls.c')
-rw-r--r-- | src/mod_gnutls.c | 665 |
1 files changed, 17 insertions, 648 deletions
diff --git a/src/mod_gnutls.c b/src/mod_gnutls.c index fbcbc52..a2c36ee 100644 --- a/src/mod_gnutls.c +++ b/src/mod_gnutls.c | |||
@@ -16,676 +16,45 @@ | |||
16 | */ | 16 | */ |
17 | 17 | ||
18 | #include "mod_gnutls.h" | 18 | #include "mod_gnutls.h" |
19 | #include "http_vhost.h" | ||
20 | 19 | ||
21 | extern server_rec *ap_server_conf; | ||
22 | |||
23 | #if APR_HAS_THREADS | ||
24 | GCRY_THREAD_OPTION_PTHREAD_IMPL; | ||
25 | #endif | ||
26 | |||
27 | #if MOD_GNUTLS_DEBUG | ||
28 | static apr_file_t* debug_log_fp; | ||
29 | #endif | ||
30 | |||
31 | static apr_status_t mod_gnutls_cleanup_pre_config(void *data) | ||
32 | { | ||
33 | gnutls_global_deinit(); | ||
34 | return APR_SUCCESS; | ||
35 | } | ||
36 | |||
37 | #if MOD_GNUTLS_DEBUG | ||
38 | static void gnutls_debug_log_all( int level, const char* str) | ||
39 | { | ||
40 | apr_file_printf(debug_log_fp, "<%d> %s\n", level, str); | ||
41 | } | ||
42 | #endif | ||
43 | |||
44 | static int mod_gnutls_hook_pre_config(apr_pool_t * pconf, | ||
45 | apr_pool_t * plog, apr_pool_t * ptemp) | ||
46 | { | ||
47 | |||
48 | #if APR_HAS_THREADS | ||
49 | /* TODO: Check MPM Type here */ | ||
50 | gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads_pthread); | ||
51 | #endif | ||
52 | |||
53 | gnutls_global_init(); | ||
54 | |||
55 | apr_pool_cleanup_register(pconf, NULL, mod_gnutls_cleanup_pre_config, | ||
56 | apr_pool_cleanup_null); | ||
57 | |||
58 | #if MOD_GNUTLS_DEBUG | ||
59 | apr_file_open(&debug_log_fp, "/tmp/gnutls_debug", | ||
60 | APR_APPEND|APR_WRITE|APR_CREATE, APR_OS_DEFAULT, pconf); | ||
61 | |||
62 | gnutls_global_set_log_level(9); | ||
63 | gnutls_global_set_log_function(gnutls_debug_log_all); | ||
64 | #endif | ||
65 | |||
66 | return OK; | ||
67 | } | ||
68 | |||
69 | |||
70 | static gnutls_datum load_params(const char* file, server_rec* s, | ||
71 | apr_pool_t* pool) | ||
72 | { | ||
73 | gnutls_datum ret = { NULL, 0 }; | ||
74 | apr_file_t* fp; | ||
75 | apr_finfo_t finfo; | ||
76 | apr_status_t rv; | ||
77 | apr_size_t br = 0; | ||
78 | |||
79 | rv = apr_file_open(&fp, file, APR_READ|APR_BINARY, APR_OS_DEFAULT, | ||
80 | pool); | ||
81 | if (rv != APR_SUCCESS) { | ||
82 | ap_log_error(APLOG_MARK, APLOG_STARTUP, rv, s, | ||
83 | "GnuTLS failed to load params file at: %s", file); | ||
84 | return ret; | ||
85 | } | ||
86 | |||
87 | rv = apr_file_info_get(&finfo, APR_FINFO_SIZE, fp); | ||
88 | |||
89 | if (rv != APR_SUCCESS) { | ||
90 | ap_log_error(APLOG_MARK, APLOG_STARTUP, rv, s, | ||
91 | "GnuTLS failed to stat params file at: %s", file); | ||
92 | return ret; | ||
93 | } | ||
94 | |||
95 | ret.data = apr_palloc(pool, finfo.size+1); | ||
96 | rv = apr_file_read_full(fp, ret.data, finfo.size, &br); | ||
97 | |||
98 | if (rv != APR_SUCCESS) { | ||
99 | ap_log_error(APLOG_MARK, APLOG_STARTUP, rv, s, | ||
100 | "GnuTLS failed to read params file at: %s", file); | ||
101 | return ret; | ||
102 | } | ||
103 | apr_file_close(fp); | ||
104 | ret.data[br] = '\0'; | ||
105 | ret.size = br; | ||
106 | |||
107 | return ret; | ||
108 | } | ||
109 | |||
110 | static int mod_gnutls_hook_post_config(apr_pool_t * p, apr_pool_t * plog, | ||
111 | apr_pool_t * ptemp, | ||
112 | server_rec * base_server) | ||
113 | { | ||
114 | int rv; | ||
115 | int data_len; | ||
116 | server_rec *s; | ||
117 | gnutls_dh_params_t dh_params; | ||
118 | gnutls_rsa_params_t rsa_params; | ||
119 | mod_gnutls_srvconf_rec *sc; | ||
120 | mod_gnutls_srvconf_rec *sc_base; | ||
121 | void *data = NULL; | ||
122 | int first_run = 0; | ||
123 | const char *userdata_key = "mod_gnutls_init"; | ||
124 | |||
125 | apr_pool_userdata_get(&data, userdata_key, base_server->process->pool); | ||
126 | if (data == NULL) { | ||
127 | first_run = 1; | ||
128 | apr_pool_userdata_set((const void *)1, userdata_key, | ||
129 | apr_pool_cleanup_null, | ||
130 | base_server->process->pool); | ||
131 | } | ||
132 | |||
133 | |||
134 | { | ||
135 | gnutls_datum pdata; | ||
136 | apr_pool_t* tpool; | ||
137 | s = base_server; | ||
138 | sc_base = (mod_gnutls_srvconf_rec *) ap_get_module_config(s->module_config, | ||
139 | &gnutls_module); | ||
140 | |||
141 | apr_pool_create(&tpool, p); | ||
142 | |||
143 | gnutls_dh_params_init(&dh_params); | ||
144 | |||
145 | pdata = load_params(sc_base->dh_params_file, s, tpool); | ||
146 | |||
147 | if (pdata.size != 0) { | ||
148 | rv = gnutls_dh_params_import_pkcs3(dh_params, &pdata, | ||
149 | GNUTLS_X509_FMT_PEM); | ||
150 | if (rv != 0) { | ||
151 | ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s, | ||
152 | "GnuTLS: Unable to load DH Params: (%d) %s", | ||
153 | rv, gnutls_strerror(rv)); | ||
154 | exit(rv); | ||
155 | } | ||
156 | } | ||
157 | else { | ||
158 | ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s, | ||
159 | "GnuTLS: Unable to load DH Params." | ||
160 | " Shutting Down."); | ||
161 | exit(-1); | ||
162 | } | ||
163 | apr_pool_clear(tpool); | ||
164 | |||
165 | gnutls_rsa_params_init(&rsa_params); | ||
166 | |||
167 | pdata = load_params(sc_base->rsa_params_file, s, tpool); | ||
168 | |||
169 | if (pdata.size != 0) { | ||
170 | rv = gnutls_rsa_params_import_pkcs1(rsa_params, &pdata, | ||
171 | GNUTLS_X509_FMT_PEM); | ||
172 | if (rv != 0) { | ||
173 | ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s, | ||
174 | "GnuTLS: Unable to load RSA Params: (%d) %s", | ||
175 | rv, gnutls_strerror(rv)); | ||
176 | exit(rv); | ||
177 | } | ||
178 | } | ||
179 | else { | ||
180 | ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, s, | ||
181 | "GnuTLS: Unable to load RSA Params." | ||
182 | " Shutting Down."); | ||
183 | exit(-1); | ||
184 | } | ||
185 | |||
186 | apr_pool_destroy(tpool); | ||
187 | rv = mod_gnutls_cache_post_config(p, s, sc_base); | ||
188 | if (rv != 0) { | ||
189 | ap_log_error(APLOG_MARK, APLOG_STARTUP, rv, s, | ||
190 | "GnuTLS: Post Config for GnuTLSCache Failed." | ||
191 | " Shutting Down."); | ||
192 | exit(-1); | ||
193 | } | ||
194 | |||
195 | for (s = base_server; s; s = s->next) { | ||
196 | sc = (mod_gnutls_srvconf_rec *) ap_get_module_config(s->module_config, | ||
197 | &gnutls_module); | ||
198 | sc->cache_type = sc_base->cache_type; | ||
199 | sc->cache_config = sc_base->cache_config; | ||
200 | |||
201 | gnutls_certificate_set_rsa_export_params(sc->certs, | ||
202 | rsa_params); | ||
203 | gnutls_certificate_set_dh_params(sc->certs, dh_params); | ||
204 | |||
205 | if (sc->cert_x509 == NULL && sc->enabled == GNUTLS_ENABLED_TRUE) { | ||
206 | ap_log_error(APLOG_MARK, APLOG_EMERG, 0, s, | ||
207 | "[GnuTLS] - Host '%s:%d' is missing a " | ||
208 | "Certificate File!", | ||
209 | s->server_hostname, s->port); | ||
210 | exit(-1); | ||
211 | } | ||
212 | |||
213 | if (sc->privkey_x509 == NULL && sc->enabled == GNUTLS_ENABLED_TRUE) { | ||
214 | ap_log_error(APLOG_MARK, APLOG_EMERG, 0, s, | ||
215 | "[GnuTLS] - Host '%s:%d' is missing a " | ||
216 | "Private Key File!", | ||
217 | s->server_hostname, s->port); | ||
218 | exit(-1); | ||
219 | } | ||
220 | |||
221 | rv = gnutls_x509_crt_get_dn_by_oid(sc->cert_x509, | ||
222 | GNUTLS_OID_X520_COMMON_NAME, 0, 0, | ||
223 | NULL, &data_len); | ||
224 | |||
225 | if (data_len < 1) { | ||
226 | sc->enabled = GNUTLS_ENABLED_FALSE; | ||
227 | sc->cert_cn = NULL; | ||
228 | continue; | ||
229 | } | ||
230 | |||
231 | sc->cert_cn = apr_palloc(p, data_len); | ||
232 | rv = gnutls_x509_crt_get_dn_by_oid(sc->cert_x509, | ||
233 | GNUTLS_OID_X520_COMMON_NAME, 0, 0, | ||
234 | sc->cert_cn, &data_len); | ||
235 | ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, | ||
236 | s, | ||
237 | "GnuTLS: sni-x509 cn: %s/%d pk: %s s: 0x%08X sc: 0x%08X", sc->cert_cn, rv, | ||
238 | gnutls_pk_algorithm_get_name(gnutls_x509_privkey_get_pk_algorithm(sc->privkey_x509)), | ||
239 | (unsigned int)s, (unsigned int)sc); | ||
240 | } | ||
241 | } | ||
242 | |||
243 | ap_add_version_component(p, "mod_gnutls/" MOD_GNUTLS_VERSION); | ||
244 | |||
245 | return OK; | ||
246 | } | ||
247 | |||
248 | static void mod_gnutls_hook_child_init(apr_pool_t *p, server_rec *s) | ||
249 | { | ||
250 | apr_status_t rv = APR_SUCCESS; | ||
251 | mod_gnutls_srvconf_rec *sc = ap_get_module_config(s->module_config, | ||
252 | &gnutls_module); | ||
253 | |||
254 | if (sc->cache_type != mod_gnutls_cache_none) { | ||
255 | rv = mod_gnutls_cache_child_init(p, s, sc); | ||
256 | if(rv != APR_SUCCESS) { | ||
257 | ap_log_error(APLOG_MARK, APLOG_EMERG, rv, s, | ||
258 | "[GnuTLS] - Failed to run Cache Init"); | ||
259 | } | ||
260 | } | ||
261 | else { | ||
262 | ap_log_error(APLOG_MARK, APLOG_CRIT, 0, s, | ||
263 | "[GnuTLS] - No Cache Configured. Hint: GnuTLSCache"); | ||
264 | } | ||
265 | } | ||
266 | |||
267 | static const char *mod_gnutls_hook_http_scheme(const request_rec * r) | ||
268 | { | ||
269 | mod_gnutls_srvconf_rec *sc = | ||
270 | (mod_gnutls_srvconf_rec *) ap_get_module_config(r->server-> | ||
271 | module_config, | ||
272 | &gnutls_module); | ||
273 | |||
274 | if (sc->enabled == GNUTLS_ENABLED_FALSE) { | ||
275 | return NULL; | ||
276 | } | ||
277 | |||
278 | return "https"; | ||
279 | } | ||
280 | |||
281 | static apr_port_t mod_gnutls_hook_default_port(const request_rec * r) | ||
282 | { | ||
283 | mod_gnutls_srvconf_rec *sc = | ||
284 | (mod_gnutls_srvconf_rec *) ap_get_module_config(r->server-> | ||
285 | module_config, | ||
286 | &gnutls_module); | ||
287 | |||
288 | if (sc->enabled == GNUTLS_ENABLED_FALSE) { | ||
289 | return 0; | ||
290 | } | ||
291 | |||
292 | return 443; | ||
293 | } | ||
294 | |||
295 | #define MAX_HOST_LEN 255 | ||
296 | |||
297 | #if USING_2_1_RECENT | ||
298 | typedef struct | ||
299 | { | ||
300 | mod_gnutls_handle_t *ctxt; | ||
301 | gnutls_retr_st* ret; | ||
302 | const char* sni_name; | ||
303 | } vhost_cb_rec; | ||
304 | |||
305 | int vhost_cb (void* baton, conn_rec* conn, server_rec* s) | ||
306 | { | ||
307 | mod_gnutls_srvconf_rec *tsc; | ||
308 | vhost_cb_rec* x = baton; | ||
309 | |||
310 | tsc = (mod_gnutls_srvconf_rec *) ap_get_module_config(s->module_config, | ||
311 | &gnutls_module); | ||
312 | |||
313 | if (tsc->enabled != GNUTLS_ENABLED_TRUE || tsc->cert_cn == NULL) { | ||
314 | return 0; | ||
315 | } | ||
316 | |||
317 | /* The CN can contain a * -- this will match those too. */ | ||
318 | if (ap_strcasecmp_match(x->sni_name, tsc->cert_cn) == 0) { | ||
319 | /* found a match */ | ||
320 | x->ret->cert.x509 = &tsc->cert_x509; | ||
321 | x->ret->key.x509 = tsc->privkey_x509; | ||
322 | #if MOD_GNUTLS_DEBUG | ||
323 | ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, | ||
324 | x->ctxt->c->base_server, | ||
325 | "GnuTLS: Virtual Host CB: " | ||
326 | "'%s' == '%s'", tsc->cert_cn, x->sni_name); | ||
327 | #endif | ||
328 | /* Because we actually change the server used here, we need to reset | ||
329 | * things like ClientVerify. | ||
330 | */ | ||
331 | x->ctxt->sc = tsc; | ||
332 | /* Shit. Crap. Dammit. We *really* should rehandshake here, as our | ||
333 | * certificate structure *should* change when the server changes. | ||
334 | * acccckkkkkk. | ||
335 | */ | ||
336 | gnutls_certificate_server_set_request(x->ctxt->session, x->ctxt->sc->client_verify_mode); | ||
337 | return 1; | ||
338 | } | ||
339 | return 0; | ||
340 | } | ||
341 | #endif | ||
342 | |||
343 | static int cert_retrieve_fn(gnutls_session_t session, gnutls_retr_st* ret) | ||
344 | { | ||
345 | int rv; | ||
346 | int sni_type; | ||
347 | int data_len = MAX_HOST_LEN; | ||
348 | char sni_name[MAX_HOST_LEN]; | ||
349 | mod_gnutls_handle_t *ctxt; | ||
350 | #if USING_2_1_RECENT | ||
351 | vhost_cb_rec cbx; | ||
352 | #else | ||
353 | server_rec* s; | ||
354 | mod_gnutls_srvconf_rec *tsc; | ||
355 | #endif | ||
356 | |||
357 | ctxt = gnutls_transport_get_ptr(session); | ||
358 | |||
359 | sni_type = gnutls_certificate_type_get(session); | ||
360 | if (sni_type != GNUTLS_CRT_X509) { | ||
361 | /* In theory, we could support OpenPGP Certificates. Theory != code. */ | ||
362 | ap_log_error(APLOG_MARK, APLOG_CRIT, 0, | ||
363 | ctxt->c->base_server, | ||
364 | "GnuTLS: Only x509 Certificates are currently supported."); | ||
365 | return -1; | ||
366 | } | ||
367 | |||
368 | ret->type = GNUTLS_CRT_X509; | ||
369 | ret->ncerts = 1; | ||
370 | ret->deinit_all = 0; | ||
371 | |||
372 | rv = gnutls_server_name_get(ctxt->session, sni_name, | ||
373 | &data_len, &sni_type, 0); | ||
374 | |||
375 | if (rv != 0) { | ||
376 | goto use_default_crt; | ||
377 | } | ||
378 | |||
379 | if (sni_type != GNUTLS_NAME_DNS) { | ||
380 | ap_log_error(APLOG_MARK, APLOG_CRIT, 0, | ||
381 | ctxt->c->base_server, | ||
382 | "GnuTLS: Unknown type '%d' for SNI: " | ||
383 | "'%s'", sni_type, sni_name); | ||
384 | goto use_default_crt; | ||
385 | } | ||
386 | |||
387 | /** | ||
388 | * Code in the Core already sets up the c->base_server as the base | ||
389 | * for this IP/Port combo. Trust that the core did the 'right' thing. | ||
390 | */ | ||
391 | #if USING_2_1_RECENT | ||
392 | cbx.ctxt = ctxt; | ||
393 | cbx.ret = ret; | ||
394 | cbx.sni_name = sni_name; | ||
395 | |||
396 | rv = ap_vhost_iterate_given_conn(ctxt->c, vhost_cb, &cbx); | ||
397 | if (rv == 1) { | ||
398 | return 0; | ||
399 | } | ||
400 | #else | ||
401 | for (s = ap_server_conf; s; s = s->next) { | ||
402 | |||
403 | tsc = (mod_gnutls_srvconf_rec *) ap_get_module_config(s->module_config, | ||
404 | &gnutls_module); | ||
405 | if (tsc->enabled != GNUTLS_ENABLED_TRUE) { | ||
406 | continue; | ||
407 | } | ||
408 | #if MOD_GNUTLS_DEBUG | ||
409 | ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, | ||
410 | ctxt->c->base_server, | ||
411 | "GnuTLS: sni-x509 cn: %s/%d pk: %s s: 0x%08X s->n: 0x%08X sc: 0x%08X", tsc->cert_cn, rv, | ||
412 | gnutls_pk_algorithm_get_name(gnutls_x509_privkey_get_pk_algorithm(ctxt->sc->privkey_x509)), | ||
413 | (unsigned int)s, (unsigned int)s->next, (unsigned int)tsc); | ||
414 | #endif | ||
415 | /* The CN can contain a * -- this will match those too. */ | ||
416 | if (ap_strcasecmp_match(sni_name, tsc->cert_cn) == 0) { | ||
417 | /* found a match */ | ||
418 | ret->cert.x509 = &tsc->cert_x509; | ||
419 | ret->key.x509 = tsc->privkey_x509; | ||
420 | #if MOD_GNUTLS_DEBUG | ||
421 | ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, | ||
422 | ctxt->c->base_server, | ||
423 | "GnuTLS: Virtual Host: " | ||
424 | "'%s' == '%s'", tsc->cert_cn, sni_name); | ||
425 | #endif | ||
426 | ctxt->sc = tsc; | ||
427 | gnutls_certificate_server_set_request(ctxt->session, ctxt->sc->client_verify_mode); | ||
428 | return 0; | ||
429 | } | ||
430 | } | ||
431 | #endif | ||
432 | |||
433 | /** | ||
434 | * If the client does not support the Server Name Indication, give the default | ||
435 | * certificate for this server. | ||
436 | */ | ||
437 | use_default_crt: | ||
438 | ret->cert.x509 = &ctxt->sc->cert_x509; | ||
439 | ret->key.x509 = ctxt->sc->privkey_x509; | ||
440 | #if MOD_GNUTLS_DEBUG | ||
441 | ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, | ||
442 | ctxt->c->base_server, | ||
443 | "GnuTLS: Using Default Certificate."); | ||
444 | #endif | ||
445 | return 0; | ||
446 | } | ||
447 | |||
448 | static mod_gnutls_handle_t* create_gnutls_handle(apr_pool_t* pool, conn_rec * c) | ||
449 | { | ||
450 | mod_gnutls_handle_t *ctxt; | ||
451 | mod_gnutls_srvconf_rec *sc = | ||
452 | (mod_gnutls_srvconf_rec *) ap_get_module_config(c->base_server-> | ||
453 | module_config, | ||
454 | &gnutls_module); | ||
455 | |||
456 | ctxt = apr_pcalloc(pool, sizeof(*ctxt)); | ||
457 | ctxt->c = c; | ||
458 | ctxt->sc = sc; | ||
459 | ctxt->status = 0; | ||
460 | |||
461 | ctxt->input_rc = APR_SUCCESS; | ||
462 | ctxt->input_bb = apr_brigade_create(c->pool, c->bucket_alloc); | ||
463 | ctxt->input_cbuf.length = 0; | ||
464 | |||
465 | ctxt->output_rc = APR_SUCCESS; | ||
466 | ctxt->output_bb = apr_brigade_create(c->pool, c->bucket_alloc); | ||
467 | ctxt->output_blen = 0; | ||
468 | ctxt->output_length = 0; | ||
469 | |||
470 | gnutls_init(&ctxt->session, GNUTLS_SERVER); | ||
471 | |||
472 | gnutls_protocol_set_priority(ctxt->session, sc->protocol); | ||
473 | gnutls_cipher_set_priority(ctxt->session, sc->ciphers); | ||
474 | gnutls_compression_set_priority(ctxt->session, sc->compression); | ||
475 | gnutls_kx_set_priority(ctxt->session, sc->key_exchange); | ||
476 | gnutls_mac_set_priority(ctxt->session, sc->macs); | ||
477 | gnutls_certificate_type_set_priority(ctxt->session, sc->cert_types); | ||
478 | |||
479 | mod_gnutls_cache_session_init(ctxt); | ||
480 | |||
481 | gnutls_credentials_set(ctxt->session, GNUTLS_CRD_CERTIFICATE, ctxt->sc->certs); | ||
482 | |||
483 | gnutls_certificate_server_set_retrieve_function(sc->certs, cert_retrieve_fn); | ||
484 | gnutls_certificate_server_set_request(ctxt->session, ctxt->sc->client_verify_mode); | ||
485 | return ctxt; | ||
486 | } | ||
487 | |||
488 | static int mod_gnutls_hook_pre_connection(conn_rec * c, void *csd) | ||
489 | { | ||
490 | mod_gnutls_handle_t *ctxt; | ||
491 | mod_gnutls_srvconf_rec *sc = | ||
492 | (mod_gnutls_srvconf_rec *) ap_get_module_config(c->base_server-> | ||
493 | module_config, | ||
494 | &gnutls_module); | ||
495 | |||
496 | if (!(sc && (sc->enabled == GNUTLS_ENABLED_TRUE))) { | ||
497 | return DECLINED; | ||
498 | } | ||
499 | |||
500 | ctxt = create_gnutls_handle(c->pool, c); | ||
501 | |||
502 | ap_set_module_config(c->conn_config, &gnutls_module, ctxt); | ||
503 | |||
504 | gnutls_transport_set_pull_function(ctxt->session, | ||
505 | mod_gnutls_transport_read); | ||
506 | gnutls_transport_set_push_function(ctxt->session, | ||
507 | mod_gnutls_transport_write); | ||
508 | gnutls_transport_set_ptr(ctxt->session, ctxt); | ||
509 | |||
510 | ctxt->input_filter = ap_add_input_filter(GNUTLS_INPUT_FILTER_NAME, ctxt, | ||
511 | NULL, c); | ||
512 | ctxt->output_filter = ap_add_output_filter(GNUTLS_OUTPUT_FILTER_NAME, ctxt, | ||
513 | NULL, c); | ||
514 | |||
515 | return OK; | ||
516 | } | ||
517 | |||
518 | static int mod_gnutls_hook_fixups(request_rec *r) | ||
519 | { | ||
520 | unsigned char sbuf[GNUTLS_MAX_SESSION_ID]; | ||
521 | char buf[GNUTLS_SESSION_ID_STRING_LEN]; | ||
522 | const char* tmp; | ||
523 | int len; | ||
524 | mod_gnutls_handle_t *ctxt; | ||
525 | apr_table_t *env = r->subprocess_env; | ||
526 | |||
527 | ctxt = ap_get_module_config(r->connection->conn_config, &gnutls_module); | ||
528 | |||
529 | if(!ctxt) { | ||
530 | return DECLINED; | ||
531 | } | ||
532 | |||
533 | apr_table_setn(env, "HTTPS", "on"); | ||
534 | |||
535 | apr_table_setn(env, "GNUTLS_VERSION_INTERFACE", MOD_GNUTLS_VERSION); | ||
536 | apr_table_setn(env, "GNUTLS_VERSION_LIBRARY", LIBGNUTLS_VERSION); | ||
537 | |||
538 | apr_table_setn(env, "SSL_PROTOCOL", | ||
539 | gnutls_protocol_get_name(gnutls_protocol_get_version(ctxt->session))); | ||
540 | |||
541 | apr_table_setn(env, "SSL_CIPHER", | ||
542 | gnutls_cipher_get_name(gnutls_cipher_get(ctxt->session))); | ||
543 | |||
544 | apr_table_setn(env, "SSL_CLIENT_VERIFY", "NONE"); | ||
545 | |||
546 | tmp = apr_psprintf(r->pool, "%d", | ||
547 | 8 * gnutls_cipher_get_key_size(gnutls_cipher_get(ctxt->session))); | ||
548 | |||
549 | apr_table_setn(env, "SSL_CIPHER_USEKEYSIZE", tmp); | ||
550 | |||
551 | apr_table_setn(env, "SSL_CIPHER_ALGKEYSIZE", tmp); | ||
552 | |||
553 | len = sizeof(sbuf); | ||
554 | gnutls_session_get_id(ctxt->session, sbuf, &len); | ||
555 | tmp = mod_gnutls_session_id2sz(sbuf, len, buf, sizeof(buf)); | ||
556 | apr_table_setn(env, "SSL_SESSION_ID", tmp); | ||
557 | |||
558 | return OK; | ||
559 | } | ||
560 | |||
561 | int mod_gnutls_hook_authz(request_rec *r) | ||
562 | { | ||
563 | int rv; | ||
564 | int status; | ||
565 | mod_gnutls_handle_t *ctxt; | ||
566 | mod_gnutls_dirconf_rec *dc = ap_get_module_config(r->per_dir_config, | ||
567 | &gnutls_module); | ||
568 | |||
569 | ctxt = ap_get_module_config(r->connection->conn_config, &gnutls_module); | ||
570 | |||
571 | if (!ctxt) { | ||
572 | return DECLINED; | ||
573 | } | ||
574 | |||
575 | if (!dc) { | ||
576 | dc = mgs_config_dir_create(r->pool, NULL); | ||
577 | } | ||
578 | |||
579 | if (dc->client_verify_mode == GNUTLS_CERT_IGNORE) { | ||
580 | ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, | ||
581 | "GnuTLS: Directory set to Ignore Client Certificate!"); | ||
582 | return DECLINED; | ||
583 | } | ||
584 | |||
585 | if (ctxt->sc->client_verify_mode < dc->client_verify_mode) { | ||
586 | ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, | ||
587 | "GnuTLS: Attempting to rehandshake with peer. %d %d", | ||
588 | ctxt->sc->client_verify_mode, dc->client_verify_mode); | ||
589 | |||
590 | gnutls_certificate_server_set_request(ctxt->session, | ||
591 | dc->client_verify_mode); | ||
592 | |||
593 | if (mod_gnutls_rehandshake(ctxt) != 0) { | ||
594 | return HTTP_FORBIDDEN; | ||
595 | } | ||
596 | } | ||
597 | else if (ctxt->sc->client_verify_mode == GNUTLS_CERT_IGNORE) { | ||
598 | #if MOD_GNUTLS_DEBUG | ||
599 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
600 | "GnuTLS: Peer is set to IGNORE"); | ||
601 | #endif | ||
602 | return DECLINED; | ||
603 | } | ||
604 | |||
605 | rv = gnutls_certificate_verify_peers2(ctxt->session, &status); | ||
606 | |||
607 | if (rv < 0) { | ||
608 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
609 | "GnuTLS: Failed to Verify Peer: (%d) %s", | ||
610 | rv, gnutls_strerror(rv)); | ||
611 | return HTTP_FORBIDDEN; | ||
612 | } | ||
613 | |||
614 | if (status < 0) { | ||
615 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
616 | "GnuTLS: Peer Status is invalid."); | ||
617 | return HTTP_FORBIDDEN; | ||
618 | } | ||
619 | |||
620 | if (status & GNUTLS_CERT_SIGNER_NOT_FOUND) { | ||
621 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
622 | "GnuTLS: Could not find Signer for Peer Certificate"); | ||
623 | } | ||
624 | |||
625 | if (status & GNUTLS_CERT_SIGNER_NOT_CA) { | ||
626 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
627 | "GnuTLS: Could not find CA for Peer Certificate"); | ||
628 | } | ||
629 | |||
630 | if (status & GNUTLS_CERT_INVALID) { | ||
631 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
632 | "GnuTLS: Peer Certificate is invalid."); | ||
633 | return HTTP_FORBIDDEN; | ||
634 | } | ||
635 | else if (status & GNUTLS_CERT_REVOKED) { | ||
636 | ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, | ||
637 | "GnuTLS: Peer Certificate is revoked."); | ||
638 | return HTTP_FORBIDDEN; | ||
639 | } | ||
640 | |||
641 | /* TODO: OpenPGP Certificates */ | ||
642 | if (gnutls_certificate_type_get(ctxt->session) != GNUTLS_CRT_X509) { | ||
643 | ap_log_rerror(APLOG_MARK, APLOG_CRIT, 0, r, | ||
644 | "GnuTLS: Only x509 is supported for client certificates"); | ||
645 | return HTTP_FORBIDDEN; | ||
646 | } | ||
647 | /* TODO: Further Verification. */ | ||
648 | ap_log_rerror(APLOG_MARK, APLOG_CRIT, 0, r, | ||
649 | "GnuTLS: Verified Peer."); | ||
650 | return OK; | ||
651 | } | ||
652 | 20 | ||
653 | static void gnutls_hooks(apr_pool_t * p) | 21 | static void gnutls_hooks(apr_pool_t * p) |
654 | { | 22 | { |
655 | ap_hook_pre_connection(mod_gnutls_hook_pre_connection, NULL, NULL, | 23 | ap_hook_pre_connection(mgs_hook_pre_connection, NULL, NULL, |
656 | APR_HOOK_MIDDLE); | 24 | APR_HOOK_MIDDLE); |
657 | ap_hook_post_config(mod_gnutls_hook_post_config, NULL, NULL, | 25 | ap_hook_post_config(mgs_hook_post_config, NULL, NULL, |
658 | APR_HOOK_MIDDLE); | ||
659 | ap_hook_child_init(mod_gnutls_hook_child_init, NULL, NULL, | ||
660 | APR_HOOK_MIDDLE); | 26 | APR_HOOK_MIDDLE); |
27 | ap_hook_child_init(mgs_hook_child_init, NULL, NULL, | ||
28 | APR_HOOK_MIDDLE); | ||
661 | #if USING_2_1_RECENT | 29 | #if USING_2_1_RECENT |
662 | ap_hook_http_scheme(mod_gnutls_hook_http_scheme, NULL, NULL, | 30 | ap_hook_http_scheme(mgs_hook_http_scheme, NULL, NULL, |
663 | APR_HOOK_MIDDLE); | 31 | APR_HOOK_MIDDLE); |
664 | #else | 32 | #else |
665 | ap_hook_http_method(mod_gnutls_hook_http_scheme, NULL, NULL, | 33 | ap_hook_http_method(mgs_hook_http_scheme, NULL, NULL, |
666 | APR_HOOK_MIDDLE); | 34 | APR_HOOK_MIDDLE); |
667 | #endif | 35 | #endif |
668 | ap_hook_default_port(mod_gnutls_hook_default_port, NULL, NULL, | 36 | ap_hook_default_port(mgs_hook_default_port, NULL, NULL, |
669 | APR_HOOK_MIDDLE); | 37 | APR_HOOK_MIDDLE); |
670 | ap_hook_pre_config(mod_gnutls_hook_pre_config, NULL, NULL, | 38 | ap_hook_pre_config(mgs_hook_pre_config, NULL, NULL, |
671 | APR_HOOK_MIDDLE); | 39 | APR_HOOK_MIDDLE); |
672 | 40 | ||
673 | ap_hook_access_checker(mod_gnutls_hook_authz, NULL, NULL, APR_HOOK_REALLY_FIRST); | 41 | ap_hook_access_checker(mgs_hook_authz, NULL, NULL, APR_HOOK_REALLY_FIRST); |
674 | 42 | ||
675 | ap_hook_fixups(mod_gnutls_hook_fixups, NULL, NULL, APR_HOOK_REALLY_FIRST); | 43 | ap_hook_fixups(mgs_hook_fixups, NULL, NULL, APR_HOOK_REALLY_FIRST); |
676 | 44 | ||
677 | /* TODO: HTTP Upgrade Filter */ | 45 | /* TODO: HTTP Upgrade Filter */ |
678 | /* ap_register_output_filter ("UPGRADE_FILTER", | 46 | /* ap_register_output_filter ("UPGRADE_FILTER", |
679 | * ssl_io_filter_Upgrade, NULL, AP_FTYPE_PROTOCOL + 5); | 47 | * ssl_io_filter_Upgrade, NULL, AP_FTYPE_PROTOCOL + 5); |
680 | */ | 48 | */ |
681 | ap_register_input_filter(GNUTLS_INPUT_FILTER_NAME, | 49 | ap_register_input_filter(GNUTLS_INPUT_FILTER_NAME, |
682 | mod_gnutls_filter_input, NULL, | 50 | mgs_filter_input, NULL, |
683 | AP_FTYPE_CONNECTION + 5); | 51 | AP_FTYPE_CONNECTION + 5); |
684 | ap_register_output_filter(GNUTLS_OUTPUT_FILTER_NAME, | 52 | ap_register_output_filter(GNUTLS_OUTPUT_FILTER_NAME, |
685 | mod_gnutls_filter_output, NULL, | 53 | mgs_filter_output, NULL, |
686 | AP_FTYPE_CONNECTION + 5); | 54 | AP_FTYPE_CONNECTION + 5); |
687 | } | 55 | } |
688 | 56 | ||
57 | |||
689 | static const command_rec mgs_config_cmds[] = { | 58 | static const command_rec mgs_config_cmds[] = { |
690 | AP_INIT_TAKE1("GnuTLSClientVerify", mgs_set_client_verify, | 59 | AP_INIT_TAKE1("GnuTLSClientVerify", mgs_set_client_verify, |
691 | NULL, | 60 | NULL, |