4 Copyright (C) 2014 Simo Sorce <simo@redhat.com>
6 Permission is hereby granted, free of charge, to any person obtaining a
7 copy of this software and associated documentation files (the "Software"),
8 to deal in the Software without restriction, including without limitation
9 the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 and/or sell copies of the Software, and to permit persons to whom the
11 Software is furnished to do so, subject to the following conditions:
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 DEALINGS IN THE SOFTWARE.
25 #include "mod_auth_gssapi.h"
27 #define MOD_AUTH_GSSAPI_VERSION PACKAGE_NAME "/" PACKAGE_VERSION
29 module AP_MODULE_DECLARE_DATA auth_gssapi_module;
31 APLOG_USE_MODULE(auth_gssapi);
33 APR_DECLARE_OPTIONAL_FN(int, ssl_is_https, (conn_rec *));
35 static char *mag_status(request_rec *req, int type, uint32_t err)
37 uint32_t maj_ret, min_ret;
46 maj_ret = gss_display_status(&min_ret, err, type,
47 GSS_C_NO_OID, &msg_ctx, &text);
48 if (maj_ret != GSS_S_COMPLETE) {
54 msg_ret = apr_psprintf(req->pool, "%s, %*s",
55 msg_ret, len, (char *)text.value);
57 msg_ret = apr_psprintf(req->pool, "%*s", len, (char *)text.value);
59 gss_release_buffer(&min_ret, &text);
60 } while (msg_ctx != 0);
65 static char *mag_error(request_rec *req, const char *msg,
66 uint32_t maj, uint32_t min)
71 msg_maj = mag_status(req, GSS_C_GSS_CODE, maj);
72 msg_min = mag_status(req, GSS_C_MECH_CODE, min);
73 return apr_psprintf(req->pool, "%s: [%s (%s)]", msg, msg_maj, msg_min);
76 static APR_OPTIONAL_FN_TYPE(ssl_is_https) *mag_is_https = NULL;
78 static int mag_post_config(apr_pool_t *cfgpool, apr_pool_t *log,
79 apr_pool_t *temp, server_rec *s)
81 /* FIXME: create mutex to deal with connections and contexts ? */
82 mag_is_https = APR_RETRIEVE_OPTIONAL_FN(ssl_is_https);
83 mag_post_config_session();
84 ap_add_version_component(cfgpool, MOD_AUTH_GSSAPI_VERSION);
89 static int mag_pre_connection(conn_rec *c, void *csd)
93 mc = apr_pcalloc(c->pool, sizeof(struct mag_conn));
94 if (!mc) return DECLINED;
97 ap_set_module_config(c->conn_config, &auth_gssapi_module, (void*)mc);
101 static apr_status_t mag_conn_destroy(void *ptr)
103 struct mag_conn *mc = (struct mag_conn *)ptr;
107 (void)gss_delete_sec_context(&min, &mc->ctx, GSS_C_NO_BUFFER);
108 mc->established = false;
113 static bool mag_conn_is_https(conn_rec *c)
116 if (mag_is_https(c)) return true;
122 static char *escape(apr_pool_t *pool, const char *name,
123 char find, const char *replace)
125 char *escaped = NULL;
130 namecopy = apr_pstrdup(pool, name);
131 if (!namecopy) goto done;
133 p = strchr(namecopy, find);
134 if (!p) return namecopy;
139 /* terminate previous segment */
142 escaped = apr_pstrcat(pool, escaped, n, replace, NULL);
144 escaped = apr_pstrcat(pool, n, replace, NULL);
146 if (!escaped) goto done;
147 /* move to next segment */
151 /* append last segment if any */
153 escaped = apr_pstrcat(pool, escaped, n, NULL);
158 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, NULL,
159 "OOM escaping name");
164 static void mag_store_deleg_creds(request_rec *req,
165 char *dir, char *clientname,
166 gss_cred_id_t delegated_cred,
169 gss_key_value_element_desc element;
170 gss_key_value_set_desc store;
175 /* We need to escape away '/', we can't have path separators in
176 * a ccache file name */
177 /* first double escape the esacping char (~) if any */
178 escaped = escape(req->pool, clientname, '~', "~~");
179 if (!escaped) return;
180 /* then escape away the separator (/) if any */
181 escaped = escape(req->pool, escaped, '/', "~");
182 if (!escaped) return;
184 value = apr_psprintf(req->pool, "FILE:%s/%s", dir, escaped);
186 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, NULL,
187 "OOM storing delegated credentials");
191 element.key = "ccache";
192 element.value = value;
193 store.elements = &element;
196 maj = gss_store_cred_into(&min, delegated_cred, GSS_C_INITIATE,
197 GSS_C_NULL_OID, 1, 1, &store, NULL, NULL);
198 if (GSS_ERROR(maj)) {
199 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req, "%s",
200 mag_error(req, "failed to store delegated creds",
207 static int mag_auth(request_rec *req)
210 const char *auth_type;
211 struct mag_config *cfg;
212 const char *auth_header;
213 char *auth_header_type;
214 char *auth_header_value;
215 int ret = HTTP_UNAUTHORIZED;
216 gss_ctx_id_t ctx = GSS_C_NO_CONTEXT;
218 gss_buffer_desc input = GSS_C_EMPTY_BUFFER;
219 gss_buffer_desc output = GSS_C_EMPTY_BUFFER;
220 gss_buffer_desc name = GSS_C_EMPTY_BUFFER;
221 gss_name_t client = GSS_C_NO_NAME;
222 gss_cred_id_t user_cred = GSS_C_NO_CREDENTIAL;
223 gss_cred_id_t acquired_cred = GSS_C_NO_CREDENTIAL;
224 gss_cred_id_t delegated_cred = GSS_C_NO_CREDENTIAL;
225 gss_cred_usage_t cred_usage = GSS_C_ACCEPT;
232 gss_OID mech_type = GSS_C_NO_OID;
233 gss_buffer_desc lname = GSS_C_EMPTY_BUFFER;
234 struct mag_conn *mc = NULL;
235 bool is_basic = false;
236 gss_ctx_id_t user_ctx = GSS_C_NO_CONTEXT;
237 gss_name_t server = GSS_C_NO_NAME;
238 #ifdef HAVE_GSS_KRB5_CCACHE_NAME
239 const char *user_ccache = NULL;
240 const char *orig_ccache = NULL;
242 uint32_t init_flags = 0;
244 type = ap_auth_type(req);
245 if ((type == NULL) || (strcasecmp(type, "GSSAPI") != 0)) {
249 cfg = ap_get_module_config(req->per_dir_config, &auth_gssapi_module);
251 /* implicit auth for subrequests if main auth already happened */
252 if (!ap_is_initial_req(req)) {
253 type = ap_auth_type(req->main);
254 if ((type != NULL) && (strcasecmp(type, "GSSAPI") == 0)) {
255 /* warn if the subrequest location and the main request
256 * location have different configs */
257 if (cfg != ap_get_module_config(req->main->per_dir_config,
258 &auth_gssapi_module)) {
259 ap_log_rerror(APLOG_MARK, APLOG_WARNING||APLOG_NOERRNO, 0,
260 req, "Subrequest authentication bypass on "
261 "location with different configuration!");
263 if (req->main->user) {
264 req->user = apr_pstrdup(req->pool, req->main->user);
267 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
268 "The main request is tasked to establish the "
269 "security context, can't proceed!");
270 return HTTP_UNAUTHORIZED;
273 ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, req,
274 "Subrequest GSSAPI auth with no auth on the main "
275 "request. This operation may fail if other "
276 "subrequests already established a context or the "
277 "mechanism requires multiple roundtrips.");
282 if (!mag_conn_is_https(req->connection)) {
283 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
284 "Not a TLS connection, refusing to authenticate!");
289 if (cfg->gss_conn_ctx) {
290 mc = (struct mag_conn *)ap_get_module_config(
291 req->connection->conn_config,
292 &auth_gssapi_module);
294 ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, req,
295 "Failed to retrieve connection context!");
300 /* if available, session always supersedes connection bound data */
301 if (cfg->use_sessions) {
302 mag_check_session(req, cfg, &mc);
306 /* register the context in the memory pool, so it can be freed
307 * when the connection/request is terminated */
308 apr_pool_userdata_set(mc, "mag_conn_ptr",
309 mag_conn_destroy, mc->parent);
311 if (mc->established) {
312 ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, req,
313 "Already established context found!");
314 apr_table_set(req->subprocess_env, "GSS_NAME", mc->gss_name);
315 req->ap_auth_type = apr_pstrdup(req->pool, mc->auth_type);
316 req->user = apr_pstrdup(req->pool, mc->user_name);
325 auth_header = apr_table_get(req->headers_in, "Authorization");
326 if (!auth_header) goto done;
328 auth_header_type = ap_getword_white(req->pool, &auth_header);
329 if (!auth_header_type) goto done;
331 if (strcasecmp(auth_header_type, "Negotiate") == 0) {
332 auth_type = "Negotiate";
334 auth_header_value = ap_getword_white(req->pool, &auth_header);
335 if (!auth_header_value) goto done;
336 input.length = apr_base64_decode_len(auth_header_value) + 1;
337 input.value = apr_pcalloc(req->pool, input.length);
338 if (!input.value) goto done;
339 input.length = apr_base64_decode(input.value, auth_header_value);
340 } else if ((strcasecmp(auth_header_type, "Basic") == 0) &&
341 (cfg->use_basic_auth == true)) {
345 gss_buffer_desc ba_user;
346 gss_buffer_desc ba_pwd;
348 ba_pwd.value = ap_pbase64decode(req->pool, auth_header);
349 if (!ba_pwd.value) goto done;
350 ba_user.value = ap_getword_nulls_nc(req->pool,
351 (char **)&ba_pwd.value, ':');
352 if (!ba_user.value) goto done;
353 if (((char *)ba_user.value)[0] == '\0' ||
354 ((char *)ba_pwd.value)[0] == '\0') {
355 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
356 "Invalid empty user or password for Basic Auth");
359 ba_user.length = strlen(ba_user.value);
360 ba_pwd.length = strlen(ba_pwd.value);
361 maj = gss_import_name(&min, &ba_user, GSS_C_NT_USER_NAME, &client);
362 if (GSS_ERROR(maj)) {
363 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
365 mag_error(req, "gss_import_name() failed",
369 #ifdef HAVE_GSS_KRB5_CCACHE_NAME
370 /* Set a per-thread ccache in case we are using kerberos,
371 * it is not elegant but avoids interference between threads */
372 long long unsigned int rndname;
374 rs = apr_generate_random_bytes((unsigned char *)(&rndname),
375 sizeof(long long unsigned int));
376 if (rs != APR_SUCCESS) {
377 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
378 "Failed to generate random ccache name");
381 user_ccache = apr_psprintf(req->pool, "MEMORY:user_%qu", rndname);
382 maj = gss_krb5_ccache_name(&min, user_ccache, &orig_ccache);
383 if (GSS_ERROR(maj)) {
384 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
386 mag_error(req, "gss_krb5_ccache_name() "
387 "failed", maj, min));
391 maj = gss_acquire_cred_with_password(&min, client, &ba_pwd,
395 &user_cred, NULL, NULL);
396 if (GSS_ERROR(maj)) {
397 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
399 mag_error(req, "gss_acquire_cred_with_password() "
400 "failed", maj, min));
403 gss_release_name(&min, &client);
408 req->ap_auth_type = apr_pstrdup(req->pool, auth_type);
410 #ifdef HAVE_GSS_ACQUIRE_CRED_FROM
411 if (cfg->use_s4u2proxy) {
412 cred_usage = GSS_C_BOTH;
414 if (cfg->cred_store) {
415 maj = gss_acquire_cred_from(&min, GSS_C_NO_NAME, GSS_C_INDEFINITE,
416 GSS_C_NO_OID_SET, cred_usage,
417 cfg->cred_store, &acquired_cred,
419 if (GSS_ERROR(maj)) {
420 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req, "%s",
421 mag_error(req, "gss_acquire_cred_from() failed",
429 if (!acquired_cred) {
430 /* Try to acquire default creds */
431 maj = gss_acquire_cred(&min, GSS_C_NO_NAME, GSS_C_INDEFINITE,
432 GSS_C_NO_OID_SET, cred_usage,
433 &acquired_cred, NULL, NULL);
434 if (GSS_ERROR(maj)) {
435 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
436 "%s", mag_error(req, "gss_acquire_cred_from()"
437 " failed", maj, min));
441 maj = gss_inquire_cred(&min, acquired_cred, &server,
443 if (GSS_ERROR(maj)) {
444 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
445 "%s", mag_error(req, "gss_inquired_cred_() "
446 "failed", maj, min));
450 if (cfg->deleg_ccache_dir) {
451 /* delegate ourselves credentials so we store them as requested */
452 init_flags |= GSS_C_DELEG_FLAG;
455 /* output and input are inverted here, this is intentional */
456 maj = gss_init_sec_context(&min, user_cred, &user_ctx, server,
457 GSS_C_NO_OID, init_flags, 300,
458 GSS_C_NO_CHANNEL_BINDINGS, &output,
459 NULL, &input, NULL, NULL);
460 if (GSS_ERROR(maj)) {
461 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
462 "%s", mag_error(req, "gss_init_sec_context() "
463 "failed", maj, min));
468 maj = gss_accept_sec_context(&min, pctx, acquired_cred,
469 &input, GSS_C_NO_CHANNEL_BINDINGS,
470 &client, &mech_type, &output, &flags, &vtime,
472 if (GSS_ERROR(maj)) {
473 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req, "%s",
474 mag_error(req, "gss_accept_sec_context() failed",
479 while (maj == GSS_S_CONTINUE_NEEDED) {
480 gss_release_buffer(&min, &input);
481 /* output and input are inverted here, this is intentional */
482 maj = gss_init_sec_context(&min, user_cred, &user_ctx, server,
483 GSS_C_NO_OID, init_flags, 300,
484 GSS_C_NO_CHANNEL_BINDINGS, &output,
485 NULL, &input, NULL, NULL);
486 if (GSS_ERROR(maj)) {
487 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
488 "%s", mag_error(req, "gss_init_sec_context() "
489 "failed", maj, min));
492 gss_release_buffer(&min, &output);
493 maj = gss_accept_sec_context(&min, pctx, acquired_cred,
494 &input, GSS_C_NO_CHANNEL_BINDINGS,
495 &client, &mech_type, &output, &flags,
496 &vtime, &delegated_cred);
497 if (GSS_ERROR(maj)) {
498 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
499 "%s", mag_error(req, "gss_accept_sec_context()"
500 " failed", maj, min));
504 } else if (maj == GSS_S_CONTINUE_NEEDED) {
506 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
507 "Mechanism needs continuation but neither "
508 "GssapiConnectionBound nor "
509 "GssapiUseSessions are available");
510 gss_delete_sec_context(&min, pctx, GSS_C_NO_BUFFER);
511 gss_release_buffer(&min, &output);
514 /* auth not complete send token and wait next packet */
518 /* Always set the GSS name in an env var */
519 maj = gss_display_name(&min, client, &name, NULL);
520 if (GSS_ERROR(maj)) {
521 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req, "%s",
522 mag_error(req, "gss_display_name() failed",
526 clientname = apr_pstrndup(req->pool, name.value, name.length);
527 apr_table_set(req->subprocess_env, "GSS_NAME", clientname);
529 #ifdef HAVE_GSS_STORE_CRED_INTO
530 if (cfg->deleg_ccache_dir && delegated_cred != GSS_C_NO_CREDENTIAL) {
531 char *ccachefile = NULL;
533 mag_store_deleg_creds(req, cfg->deleg_ccache_dir, clientname,
534 delegated_cred, &ccachefile);
537 apr_table_set(req->subprocess_env, "KRB5CCNAME", ccachefile);
542 if (cfg->map_to_local) {
543 maj = gss_localname(&min, client, mech_type, &lname);
544 if (maj != GSS_S_COMPLETE) {
545 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req, "%s",
546 mag_error(req, "gss_localname() failed", maj, min));
549 req->user = apr_pstrndup(req->pool, lname.value, lname.length);
551 req->user = clientname;
555 mc->user_name = apr_pstrdup(mc->parent, req->user);
556 mc->gss_name = apr_pstrdup(mc->parent, clientname);
557 mc->established = true;
558 if (vtime == GSS_C_INDEFINITE || vtime < MIN_SESS_EXP_TIME) {
559 vtime = MIN_SESS_EXP_TIME;
561 mc->expiration = time(NULL) + vtime;
562 if (cfg->use_sessions) {
563 mag_attempt_session(req, cfg, mc);
565 mc->auth_type = auth_type;
571 if (ret == HTTP_UNAUTHORIZED) {
572 if (output.length != 0) {
573 replen = apr_base64_encode_len(output.length) + 1;
574 reply = apr_pcalloc(req->pool, 10 + replen);
576 memcpy(reply, "Negotiate ", 10);
577 apr_base64_encode(&reply[10], output.value, output.length);
578 apr_table_add(req->err_headers_out,
579 "WWW-Authenticate", reply);
582 apr_table_add(req->err_headers_out,
583 "WWW-Authenticate", "Negotiate");
584 if (cfg->use_basic_auth) {
585 apr_table_add(req->err_headers_out,
587 apr_psprintf(req->pool, "Basic realm=\"%s\"",
592 #ifdef HAVE_GSS_KRB5_CCACHE_NAME
593 if (user_ccache != NULL) {
594 maj = gss_krb5_ccache_name(&min, orig_ccache, NULL);
595 if (maj != GSS_S_COMPLETE) {
596 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
597 "Failed to restore per-thread ccache, %s",
598 mag_error(req, "gss_krb5_ccache_name() "
599 "failed", maj, min));
603 gss_delete_sec_context(&min, &user_ctx, &output);
604 gss_release_cred(&min, &user_cred);
605 gss_release_cred(&min, &acquired_cred);
606 gss_release_cred(&min, &delegated_cred);
607 gss_release_buffer(&min, &output);
608 gss_release_name(&min, &client);
609 gss_release_name(&min, &server);
610 gss_release_buffer(&min, &name);
611 gss_release_buffer(&min, &lname);
616 static void *mag_create_dir_config(apr_pool_t *p, char *dir)
618 struct mag_config *cfg;
620 cfg = (struct mag_config *)apr_pcalloc(p, sizeof(struct mag_config));
621 if (!cfg) return NULL;
627 static const char *mag_ssl_only(cmd_parms *parms, void *mconfig, int on)
629 struct mag_config *cfg = (struct mag_config *)mconfig;
630 cfg->ssl_only = on ? true : false;
634 static const char *mag_map_to_local(cmd_parms *parms, void *mconfig, int on)
636 struct mag_config *cfg = (struct mag_config *)mconfig;
637 cfg->map_to_local = on ? true : false;
641 static const char *mag_conn_ctx(cmd_parms *parms, void *mconfig, int on)
643 struct mag_config *cfg = (struct mag_config *)mconfig;
644 cfg->gss_conn_ctx = on ? true : false;
648 static const char *mag_use_sess(cmd_parms *parms, void *mconfig, int on)
650 struct mag_config *cfg = (struct mag_config *)mconfig;
651 cfg->use_sessions = on ? true : false;
655 static const char *mag_use_s4u2p(cmd_parms *parms, void *mconfig, int on)
657 struct mag_config *cfg = (struct mag_config *)mconfig;
658 cfg->use_s4u2proxy = on ? true : false;
660 if (cfg->deleg_ccache_dir == NULL) {
661 cfg->deleg_ccache_dir = apr_pstrdup(parms->pool, "/tmp");
662 if (!cfg->deleg_ccache_dir) {
663 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0,
664 parms->server, "%s", "OOM setting deleg_ccache_dir.");
670 static const char *mag_sess_key(cmd_parms *parms, void *mconfig, const char *w)
672 struct mag_config *cfg = (struct mag_config *)mconfig;
679 if (strncmp(w, "key:", 4) != 0) {
680 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
681 "Invalid key format, expected prefix 'key:'");
686 l = apr_base64_decode_len(k);
687 val = apr_palloc(parms->temp_pool, l);
689 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
690 "Failed to get memory to decode key");
694 key.length = (int)apr_base64_decode_binary(val, k);
695 key.value = (unsigned char *)val;
697 if (key.length < 32) {
698 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
699 "Invalid key length, expected >=32 got %d", key.length);
703 rc = SEAL_KEY_CREATE(cfg->pool, &cfg->mag_skey, &key);
705 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
706 "Failed to import sealing key!");
711 #define MAX_CRED_OPTIONS 10
713 static const char *mag_cred_store(cmd_parms *parms, void *mconfig,
716 struct mag_config *cfg = (struct mag_config *)mconfig;
717 gss_key_value_element_desc *elements;
726 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
727 "%s [%s]", "Invalid syntax for GssapiCredStore option", w);
731 key = apr_pstrndup(parms->pool, w, (p-w));
732 value = apr_pstrdup(parms->pool, p + 1);
733 if (!key || !value) {
734 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
735 "%s", "OOM handling GssapiCredStore option");
739 if (!cfg->cred_store) {
740 cfg->cred_store = apr_pcalloc(parms->pool,
741 sizeof(gss_key_value_set_desc));
742 if (!cfg->cred_store) {
743 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
744 "%s", "OOM handling GssapiCredStore option");
747 size = sizeof(gss_key_value_element_desc) * MAX_CRED_OPTIONS;
748 cfg->cred_store->elements = apr_palloc(parms->pool, size);
749 if (!cfg->cred_store->elements) {
750 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
751 "%s", "OOM handling GssapiCredStore option");
755 elements = cfg->cred_store->elements;
756 count = cfg->cred_store->count;
758 if (count >= MAX_CRED_OPTIONS) {
759 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
760 "Too many GssapiCredStore options (MAX: %d)",
764 cfg->cred_store->count++;
766 elements[count].key = key;
767 elements[count].value = value;
772 static const char *mag_deleg_ccache_dir(cmd_parms *parms, void *mconfig,
775 struct mag_config *cfg = (struct mag_config *)mconfig;
777 cfg->deleg_ccache_dir = apr_pstrdup(parms->pool, value);
778 if (!cfg->deleg_ccache_dir) {
779 ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
780 "%s", "OOM handling GssapiDelegCcacheDir option");
786 static const char *mag_use_basic_auth(cmd_parms *parms, void *mconfig, int on)
788 struct mag_config *cfg = (struct mag_config *)mconfig;
790 cfg->use_basic_auth = on ? true : false;
794 static const command_rec mag_commands[] = {
795 AP_INIT_FLAG("GssapiSSLonly", mag_ssl_only, NULL, OR_AUTHCFG,
796 "Work only if connection is SSL Secured"),
797 AP_INIT_FLAG("GssapiLocalName", mag_map_to_local, NULL, OR_AUTHCFG,
798 "Translate principals to local names"),
799 AP_INIT_FLAG("GssapiConnectionBound", mag_conn_ctx, NULL, OR_AUTHCFG,
800 "Authentication is bound to the TCP connection"),
801 AP_INIT_FLAG("GssapiUseSessions", mag_use_sess, NULL, OR_AUTHCFG,
802 "Authentication uses mod_sessions to hold status"),
803 AP_INIT_RAW_ARGS("GssapiSessionKey", mag_sess_key, NULL, OR_AUTHCFG,
804 "Key Used to seal session data."),
805 #ifdef HAVE_GSS_ACQUIRE_CRED_FROM
806 AP_INIT_FLAG("GssapiUseS4U2Proxy", mag_use_s4u2p, NULL, OR_AUTHCFG,
807 "Initializes credentials for s4u2proxy usage"),
809 #ifdef HAVE_GSS_STORE_CRED_INTO
810 AP_INIT_ITERATE("GssapiCredStore", mag_cred_store, NULL, OR_AUTHCFG,
812 AP_INIT_RAW_ARGS("GssapiDelegCcacheDir", mag_deleg_ccache_dir, NULL,
813 OR_AUTHCFG, "Directory to store delegated credentials"),
815 #ifdef HAVE_GSS_ACQUIRE_CRED_WITH_PASSWORD
816 AP_INIT_FLAG("GssapiBasicAuth", mag_use_basic_auth, NULL, OR_AUTHCFG,
817 "Allows use of Basic Auth for authentication"),
823 mag_register_hooks(apr_pool_t *p)
825 ap_hook_check_user_id(mag_auth, NULL, NULL, APR_HOOK_MIDDLE);
826 ap_hook_post_config(mag_post_config, NULL, NULL, APR_HOOK_MIDDLE);
827 ap_hook_pre_connection(mag_pre_connection, NULL, NULL, APR_HOOK_MIDDLE);
830 module AP_MODULE_DECLARE_DATA auth_gssapi_module =
832 STANDARD20_MODULE_STUFF,
833 mag_create_dir_config,