2 * Daniel Kouril <kouril@users.sourceforge.net>
4 * Source and Documentation can be found at:
5 * http://modauthkerb.sourceforge.net/
8 * James E. Robinson, III <james@ncstate.net>
9 * Daniel Henninger <daniel@ncsu.edu>
10 * Ludek Sulak <xsulak@fi.muni.cz>
14 * Copyright (c) 2004-2006 Masarykova universita
15 * (Masaryk University, Brno, Czech Republic)
16 * All rights reserved.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions are met:
21 * 1. Redistributions of source code must retain the above copyright notice,
22 * this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
28 * 3. Neither the name of the University nor the names of its contributors may
29 * be used to endorse or promote products derived from this software
30 * without specific prior written permission.
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
33 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
36 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
37 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
38 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
39 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
40 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGE.
53 #define MODAUTHKERB_VERSION "5.0-rc7"
55 #define MECH_NEGOTIATE "Negotiate"
56 #define SERVICE_NAME "HTTP"
59 #include <http_config.h>
60 #include <http_core.h>
62 #include <http_protocol.h>
63 #include <http_request.h>
65 #ifdef STANDARD20_MODULE_STUFF
66 #include <apr_strings.h>
67 #include <apr_base64.h>
69 #define ap_null_cleanup NULL
70 #define ap_register_cleanup apr_pool_cleanup_register
72 #define ap_pstrdup apr_pstrdup
73 #define ap_pstrcat apr_pstrcat
74 #define ap_pcalloc apr_pcalloc
75 #define ap_psprintf apr_psprintf
77 #define ap_base64decode_len apr_base64_decode_len
78 #define ap_base64decode apr_base64_decode
79 #define ap_base64encode_len apr_base64_encode_len
80 #define ap_base64encode apr_base64_encode
82 #define ap_table_setn apr_table_setn
83 #define ap_table_add apr_table_add
85 #define ap_pstrchr_c strchr
86 #endif /* STANDARD20_MODULE_STUFF */
89 #define vsnprintf _vsnprintf
90 #define snprintf _snprintf
98 # include <gssapi/gssapi.h>
99 # include <gssapi/gssapi_generic.h>
100 # include <gssapi/gssapi_krb5.h>
101 # define GSS_C_NT_USER_NAME gss_nt_user_name
102 # define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
103 # define krb5_get_err_text(context,code) error_message(code)
105 #ifndef GSSAPI_SUPPORTS_SPNEGO
106 # include "spnegokrb5.h"
111 /* Prevent warning about closesocket redefinition (Apache's ap_config.h and
112 * MIT Kerberos' port-sockets.h both define it as close) */
117 #include <netdb.h> /* gethostbyname() */
121 /* should be HAVE_UNISTD_H instead */
125 #ifdef STANDARD20_MODULE_STUFF
126 module AP_MODULE_DECLARE_DATA auth_kerb_module;
128 module auth_kerb_module;
131 /***************************************************************************
132 Macros To Ease Compatibility
133 ***************************************************************************/
134 #ifdef STANDARD20_MODULE_STUFF
135 #define MK_POOL apr_pool_t
136 #define MK_TABLE_GET apr_table_get
137 #define MK_USER r->user
138 #define MK_AUTH_TYPE r->ap_auth_type
141 #define MK_TABLE_GET ap_table_get
142 #define MK_USER r->connection->user
143 #define MK_AUTH_TYPE r->connection->ap_auth_type
144 #define PROXYREQ_PROXY STD_PROXY
147 /***************************************************************************
148 Auth Configuration Structure
149 ***************************************************************************/
151 char *krb_auth_realms;
152 int krb_save_credentials;
154 const char *krb_service_name;
155 int krb_authoritative;
156 int krb_delegate_basic;
158 int krb_ssl_preauthentication;
162 int krb_method_gssapi;
163 int krb_method_k5pass;
167 int krb_method_k4pass;
172 set_kerb_auth_headers(request_rec *r, const kerb_auth_config *conf,
173 int use_krb4, int use_krb5pwd, char *negotiate_ret_value);
176 krb5_save_realms(cmd_parms *cmd, void *sec, const char *arg);
178 #ifdef STANDARD20_MODULE_STUFF
179 #define command(name, func, var, type, usage) \
180 AP_INIT_ ## type (name, (void*) func, \
181 (void*)APR_OFFSETOF(kerb_auth_config, var), \
182 OR_AUTHCFG | RSRC_CONF, usage)
184 #define command(name, func, var, type, usage) \
186 (void*)XtOffsetOf(kerb_auth_config, var), \
187 OR_AUTHCFG | RSRC_CONF, type, usage }
190 static const command_rec kerb_auth_cmds[] = {
191 command("KrbAuthRealms", krb5_save_realms, krb_auth_realms,
192 RAW_ARGS, "Realms to attempt authentication against (can be multiple)."),
194 command("KrbAuthRealm", krb5_save_realms, krb_auth_realms,
195 RAW_ARGS, "Alias for KrbAuthRealms."),
197 command("KrbSaveCredentials", ap_set_flag_slot, krb_save_credentials,
198 FLAG, "Save and store credentials/tickets retrieved during auth."),
200 command("KrbVerifyKDC", ap_set_flag_slot, krb_verify_kdc,
201 FLAG, "Verify tickets against keytab to prevent KDC spoofing attacks."),
203 command("KrbServiceName", ap_set_string_slot, krb_service_name,
204 TAKE1, "Full or partial service name to be used by Apache for authentication."),
206 command("KrbAuthoritative", ap_set_flag_slot, krb_authoritative,
207 FLAG, "Set to 'off' to allow access control to be passed along to lower modules iff the UserID is not known to this module."),
209 command("KrbDelegateBasic", ap_set_flag_slot, krb_delegate_basic,
210 FLAG, "Always offer Basic authentication regardless of KrbMethodK5Pass and pass on authentication to lower modules if Basic headers arrive."),
213 command("KrbEnableSSLPreauthentication", ap_set_flag_slot, krb_ssl_preauthentication,
214 FLAG, "Don't do Kerberos authentication if the user is already authenticated using SSL and her client certificate."),
218 command("Krb5Keytab", ap_set_file_slot, krb_5_keytab,
219 TAKE1, "Location of Kerberos V5 keytab file."),
221 command("KrbMethodNegotiate", ap_set_flag_slot, krb_method_gssapi,
222 FLAG, "Enable Negotiate authentication method."),
224 command("KrbMethodK5Passwd", ap_set_flag_slot, krb_method_k5pass,
225 FLAG, "Enable Kerberos V5 password authentication."),
229 command("Krb4Srvtab", ap_set_file_slot, krb_4_srvtab,
230 TAKE1, "Location of Kerberos V4 srvtab file."),
232 command("KrbMethodK4Passwd", ap_set_flag_slot, krb_method_k4pass,
233 FLAG, "Enable Kerberos V4 password authentication."),
241 mkstemp(char *template)
246 start = strlen(template) - 1;
247 while(template[start] == 'X') {
248 template[start] = '0' + val % 10;
255 fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600);
256 if(fd >= 0 || errno != EEXIST)
263 if(template[i] == '9' + 1)
265 if(template[i] <= 'z')
274 #if defined(KRB5) && !defined(HEIMDAL)
275 /* Needed to work around problems with replay caches */
276 #include "mit-internals.h"
278 /* This is our replacement krb5_rc_store function */
279 static krb5_error_code KRB5_LIB_FUNCTION
280 mod_auth_kerb_rc_store(krb5_context context, krb5_rcache rcache,
281 krb5_donot_replay_internal *donot_replay)
286 /* And this is the operations vector for our replay cache */
287 const krb5_rc_ops_internal mod_auth_kerb_rc_ops = {
294 mod_auth_kerb_rc_store,
296 krb5_rc_dfl_get_span,
297 krb5_rc_dfl_get_name,
303 /***************************************************************************
304 Auth Configuration Initialization
305 ***************************************************************************/
306 static void *kerb_dir_create_config(MK_POOL *p, char *d)
308 kerb_auth_config *rec;
310 rec = (kerb_auth_config *) ap_pcalloc(p, sizeof(kerb_auth_config));
311 ((kerb_auth_config *)rec)->krb_verify_kdc = 1;
312 ((kerb_auth_config *)rec)->krb_service_name = NULL;
313 ((kerb_auth_config *)rec)->krb_authoritative = 1;
314 ((kerb_auth_config *)rec)->krb_delegate_basic = 0;
316 ((kerb_auth_config *)rec)->krb_ssl_preauthentication = 0;
319 ((kerb_auth_config *)rec)->krb_method_k5pass = 1;
320 ((kerb_auth_config *)rec)->krb_method_gssapi = 1;
323 ((kerb_auth_config *)rec)->krb_method_k4pass = 1;
329 krb5_save_realms(cmd_parms *cmd, void *vsec, const char *arg)
331 kerb_auth_config *sec = (kerb_auth_config *) vsec;
332 sec->krb_auth_realms= ap_pstrdup(cmd->pool, arg);
337 log_rerror(const char *file, int line, int level, int status,
338 const request_rec *r, const char *fmt, ...)
344 vsnprintf(errstr, sizeof(errstr), fmt, ap);
348 #ifdef STANDARD20_MODULE_STUFF
349 ap_log_rerror(file, line, level | APLOG_NOERRNO, status, r, "%s", errstr);
351 ap_log_rerror(file, line, level | APLOG_NOERRNO, r, "%s", errstr);
356 /***************************************************************************
357 Username/Password Validation for Krb4
358 ***************************************************************************/
360 verify_krb4_user(request_rec *r, char *name, char *instance, char *realm,
361 char *password, char *linstance, char *srvtab, int krb_verify_kdc)
367 const char *hostname;
370 char lrealm[REALM_SZ];
372 ret = krb_get_pw_in_tkt(name, instance, realm, "krbtgt", realm,
373 DEFAULT_TKT_LIFE, password);
375 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
376 "Cannot get krb4 ticket: krb_get_pw_in_tkt() failed: %s",
377 krb_get_err_text(ret));
384 hostname = ap_get_server_name(r);
386 hp = gethostbyname(hostname);
389 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
390 "Cannot verify krb4 ticket: gethostbyname() failed: %s",
394 memcpy(&addr, hp->h_addr, sizeof(addr));
396 phost = krb_get_phost((char *)hostname);
398 krb_get_lrealm(lrealm, 1);
400 ret = krb_mk_req(&ticket, linstance, phost, lrealm, 0);
402 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
403 "Cannot verify krb4 ticket: krb_mk_req() failed: %s",
404 krb_get_err_text(ret));
409 ret = krb_rd_req(&ticket, linstance, phost, addr, &authdata, srvtab);
411 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
412 "Cannot verify krb4 ticket: krb_rd_req() failed: %s",
413 krb_get_err_text(ret));
421 krb4_cache_cleanup(void *data)
423 char *tkt_file = (char *) data;
425 krb_set_tkt_string(tkt_file);
431 authenticate_user_krb4pwd(request_rec *r,
432 kerb_auth_config *conf,
433 const char *auth_line)
437 const char *sent_name;
440 char *tkt_file_p = NULL;
445 char lrealm[REALM_SZ];
446 int all_principals_unkown;
448 sent_pw = ap_pbase64decode(r->pool, auth_line);
449 sent_name = ap_getword (r->pool, &sent_pw, ':');
451 /* do not allow user to override realm setting of server */
452 if (ap_strchr_c(sent_name, '@')) {
453 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
454 "specifying realm in user name is prohibited");
455 return HTTP_UNAUTHORIZED;
458 sent_instance = strchr(sent_name, '.');
460 *sent_instance++ = '\0';
462 snprintf(tkt_file, sizeof(tkt_file), "/tmp/apache_tkt_XXXXXX");
463 fd = mkstemp(tkt_file);
465 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
466 "Cannot create krb4 ccache: mkstemp() failed: %s",
468 return HTTP_INTERNAL_SERVER_ERROR;
471 tkt_file_p = ap_pstrdup(r->pool, tkt_file);
472 ap_register_cleanup(r->pool, tkt_file_p,
473 krb4_cache_cleanup, ap_null_cleanup);
475 krb_set_tkt_string(tkt_file);
477 all_principals_unkown = 1;
478 realms = conf->krb_auth_realms;
480 memset(lrealm, 0, sizeof(lrealm));
483 realm = ap_getword_white(r->pool, &realms);
486 ret = krb_get_lrealm(lrealm, 1);
492 /* XXX conf->krb_service_name */
493 ret = verify_krb4_user(r, (char *)sent_name,
494 (sent_instance) ? sent_instance : "",
495 (char *)realm, (char *)sent_pw,
496 conf->krb_service_name,
497 conf->krb_4_srvtab, conf->krb_verify_kdc);
498 if (!conf->krb_authoritative && ret) {
499 /* if we're not authoritative, we allow authentication to pass on
500 * to another modules if (and only if) the user is not known to us */
501 if (all_principals_unkown && ret != KDC_PR_UNKNOWN)
502 all_principals_unkown = 0;
507 } while (realms && *realms);
510 /* XXX log only in the verify_krb4_user() call */
511 log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "Verifying krb4 password failed");
512 ret = (!conf->krb_authoritative && all_principals_unkown == 1 && ret == KDC_PR_UNKNOWN) ?
513 DECLINED : HTTP_UNAUTHORIZED;
517 user = ap_pstrdup(r->pool, sent_name);
519 user = ap_pstrcat(r->pool, user, ".", sent_instance, NULL);
520 user = ap_pstrcat(r->pool, user, "@", realm, NULL);
523 MK_AUTH_TYPE = "Basic";
524 ap_table_setn(r->subprocess_env, "KRBTKFILE", tkt_file_p);
526 if (!conf->krb_save_credentials)
527 krb4_cache_cleanup(tkt_file);
531 krb4_cache_cleanup(tkt_file);
540 /***************************************************************************
541 Username/Password Validation for Krb5
542 ***************************************************************************/
544 /* MIT kerberos uses replay cache checks even during credential verification
545 * (i.e. in krb5_verify_init_creds()), which is obviosuly useless. In order to
546 * avoid problems with multiple apache processes accessing the same rcache file
547 * we had to use this call instead, which is only a bit modified version of
548 * krb5_verify_init_creds() */
549 static krb5_error_code
550 verify_krb5_init_creds(request_rec *r, krb5_context context, krb5_creds *creds,
551 krb5_principal ap_req_server, krb5_keytab ap_req_keytab)
555 krb5_ccache local_ccache = NULL;
556 krb5_creds *new_creds = NULL;
557 krb5_auth_context auth_context = NULL;
558 krb5_keytab keytab = NULL;
561 memset(&req, 0, sizeof(req));
563 if (ap_req_keytab == NULL) {
564 ret = krb5_kt_default (context, &keytab);
568 keytab = ap_req_keytab;
570 ret = krb5_cc_resolve(context, "MEMORY:", &local_ccache);
572 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
573 "krb5_cc_resolve() failed when verifying KDC");
577 ret = krb5_cc_initialize(context, local_ccache, creds->client);
579 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
580 "krb5_cc_initialize() failed when verifying KDC");
584 ret = krb5_cc_store_cred (context, local_ccache, creds);
586 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
587 "krb5_cc_initialize() failed when verifying KDC");
591 ret = krb5_unparse_name(context, ap_req_server, &server_name);
593 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
594 "krb5_unparse_name() failed when verifying KDC");
597 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
598 "Trying to verify authenticity of KDC using principal %s", server_name);
601 if (!krb5_principal_compare (context, ap_req_server, creds->server)) {
602 krb5_creds match_cred;
604 memset (&match_cred, 0, sizeof(match_cred));
606 match_cred.client = creds->client;
607 match_cred.server = ap_req_server;
609 ret = krb5_get_credentials (context, 0, local_ccache,
610 &match_cred, &new_creds);
612 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
613 "krb5_get_credentials() failed when verifying KDC");
619 ret = krb5_mk_req_extended (context, &auth_context, 0, NULL, creds, &req);
621 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
622 "krb5_mk_req_extended() failed when verifying KDC");
626 krb5_auth_con_free (context, auth_context);
628 ret = krb5_auth_con_init(context, &auth_context);
630 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
631 "krb5_auth_con_init() failed when verifying KDC");
634 /* use KRB5_AUTH_CONTEXT_DO_SEQUENCE to skip replay cache checks */
635 krb5_auth_con_setflags(context, auth_context, KRB5_AUTH_CONTEXT_DO_SEQUENCE);
637 ret = krb5_rd_req (context, &auth_context, &req, ap_req_server,
640 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
641 "krb5_rd_req() failed when verifying KDC");
647 /* XXX Do I ever want to support Heimdal 0.4 ??? */
648 krb5_data_free(&req);
650 krb5_free_data_contents(context, &req);
653 krb5_auth_con_free (context, auth_context);
655 krb5_free_creds (context, new_creds);
656 if (ap_req_keytab == NULL && keytab)
657 krb5_kt_close (context, keytab);
659 krb5_cc_destroy (context, local_ccache);
664 /* Inspired by krb5_verify_user from Heimdal */
665 static krb5_error_code
666 verify_krb5_user(request_rec *r, krb5_context context, krb5_principal principal,
667 const char *password, krb5_principal server,
668 krb5_keytab keytab, int krb_verify_kdc, krb5_ccache *ccache)
672 krb5_ccache ret_ccache = NULL;
675 /* XXX error messages shouldn't be logged here (and in the while() loop in
676 * authenticate_user_krb5pwd() as weell), in order to avoid confusing log
677 * entries when using multiple realms */
679 memset(&creds, 0, sizeof(creds));
681 ret = krb5_unparse_name(context, principal, &name);
683 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
684 "Trying to get TGT for user %s", name);
688 ret = krb5_get_init_creds_password(context, &creds, principal,
689 (char *)password, NULL,
690 NULL, 0, NULL, NULL);
692 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
693 "krb5_get_init_creds_password() failed: %s",
694 krb5_get_err_text(context, ret));
702 krb5_get_default_realm(context, &realm);
703 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
704 "trying to verify password using key for %s/%s@%s",
705 service, ap_get_server_name(r), realm);
709 if (krb_verify_kdc &&
710 (ret = verify_krb5_init_creds(r, context, &creds, server, keytab))) {
711 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
712 "failed to verify krb5 credentials: %s",
713 krb5_get_err_text(context, ret));
717 ret = krb5_cc_resolve(context, "MEMORY:", &ret_ccache);
719 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
720 "generating new memory ccache failed: %s",
721 krb5_get_err_text(context, ret));
725 ret = krb5_cc_initialize(context, ret_ccache, principal);
727 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
728 "krb5_cc_initialize() failed: %s",
729 krb5_get_err_text(context, ret));
733 ret = krb5_cc_store_cred(context, ret_ccache, &creds);
735 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
736 "krb5_cc_store_cred() failed: %s",
737 krb5_get_err_text(context, ret));
740 *ccache = ret_ccache;
744 krb5_free_cred_contents(context, &creds);
746 krb5_cc_destroy(context, ret_ccache);
752 krb5_cache_cleanup(void *data)
754 krb5_context context;
756 krb5_error_code problem;
757 char *cache_name = (char *) data;
759 problem = krb5_init_context(&context);
761 /* ap_log_error(APLOG_MARK, APLOG_ERR, 0, NULL, "krb5_init_context() failed"); */
762 return HTTP_INTERNAL_SERVER_ERROR;
765 problem = krb5_cc_resolve(context, cache_name, &cache);
767 /* log_error(APLOG_MARK, APLOG_ERR, 0, NULL,
768 "krb5_cc_resolve() failed (%s: %s)",
769 cache_name, krb5_get_err_text(context, problem)); */
770 return HTTP_INTERNAL_SERVER_ERROR;
773 krb5_cc_destroy(context, cache);
774 krb5_free_context(context);
779 create_krb5_ccache(krb5_context kcontext,
781 kerb_auth_config *conf,
782 krb5_principal princ,
787 krb5_error_code problem;
789 krb5_ccache tmp_ccache = NULL;
791 ccname = ap_psprintf(r->pool, "FILE:%s/krb5cc_apache_XXXXXX", P_tmpdir);
792 fd = mkstemp(ccname + strlen("FILE:"));
794 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
795 "mkstemp() failed: %s", strerror(errno));
796 ret = HTTP_INTERNAL_SERVER_ERROR;
801 problem = krb5_cc_resolve(kcontext, ccname, &tmp_ccache);
803 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
804 "krb5_cc_resolve() failed: %s",
805 krb5_get_err_text(kcontext, problem));
806 ret = HTTP_INTERNAL_SERVER_ERROR;
811 problem = krb5_cc_initialize(kcontext, tmp_ccache, princ);
813 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
814 "Cannot initialize krb5 ccache %s: krb5_cc_initialize() failed: %s",
815 ccname, krb5_get_err_text(kcontext, problem));
816 ret = HTTP_INTERNAL_SERVER_ERROR;
820 ap_table_setn(r->subprocess_env, "KRB5CCNAME", ccname);
821 ap_register_cleanup(r->pool, ccname,
822 krb5_cache_cleanup, ap_null_cleanup);
824 *ccache = tmp_ccache;
831 krb5_cc_destroy(kcontext, tmp_ccache);
837 store_krb5_creds(krb5_context kcontext,
839 kerb_auth_config *conf,
840 krb5_ccache delegated_cred)
843 krb5_error_code problem;
844 krb5_principal princ;
848 problem = krb5_cc_get_principal(kcontext, delegated_cred, &princ);
850 snprintf(errstr, sizeof(errstr), "krb5_cc_get_principal() failed: %s",
851 krb5_get_err_text(kcontext, problem));
852 return HTTP_INTERNAL_SERVER_ERROR;
855 ret = create_krb5_ccache(kcontext, r, conf, princ, &ccache);
857 krb5_free_principal(kcontext, princ);
862 problem = krb5_cc_copy_cache(kcontext, delegated_cred, ccache);
864 problem = krb5_cc_copy_creds(kcontext, delegated_cred, ccache);
866 krb5_free_principal(kcontext, princ);
868 snprintf(errstr, sizeof(errstr), "Failed to store credentials: %s",
869 krb5_get_err_text(kcontext, problem));
870 krb5_cc_destroy(kcontext, ccache);
871 return HTTP_INTERNAL_SERVER_ERROR;
874 krb5_cc_close(kcontext, ccache);
880 authenticate_user_krb5pwd(request_rec *r,
881 kerb_auth_config *conf,
882 const char *auth_line)
884 const char *sent_pw = NULL;
885 const char *sent_name = NULL;
886 const char *realms = NULL;
887 const char *realm = NULL;
888 krb5_context kcontext = NULL;
889 krb5_error_code code;
890 krb5_principal client = NULL;
891 krb5_principal server = NULL;
892 krb5_ccache ccache = NULL;
893 krb5_keytab keytab = NULL;
896 int all_principals_unkown;
899 code = krb5_init_context(&kcontext);
901 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
902 "Cannot initialize Kerberos5 context (%d)", code);
903 return HTTP_INTERNAL_SERVER_ERROR;
906 sent_pw = ap_pbase64decode(r->pool, auth_line);
907 sent_name = ap_getword (r->pool, &sent_pw, ':');
909 if (sent_pw == NULL || *sent_pw == '\0') {
910 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
911 "empty passwords are not accepted");
912 ret = HTTP_UNAUTHORIZED;
916 if (conf->krb_5_keytab)
917 krb5_kt_resolve(kcontext, conf->krb_5_keytab, &keytab);
919 if (conf->krb_service_name && strchr(conf->krb_service_name, '/') != NULL)
920 ret = krb5_parse_name (kcontext, conf->krb_service_name, &server);
922 ret = krb5_sname_to_principal(kcontext, ap_get_server_name(r),
923 (conf->krb_service_name) ? conf->krb_service_name : SERVICE_NAME,
924 KRB5_NT_SRV_HST, &server);
927 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
928 "Error parsing server name (%s): %s",
929 (conf->krb_service_name) ? conf->krb_service_name : SERVICE_NAME,
930 krb5_get_err_text(kcontext, ret));
931 ret = HTTP_UNAUTHORIZED;
935 code = krb5_unparse_name(kcontext, server, &name);
937 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
938 "krb5_unparse_name() failed: %s",
939 krb5_get_err_text(kcontext, code));
940 ret = HTTP_UNAUTHORIZED;
943 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "Using %s as server principal for password verification", name);
947 p = strchr(sent_name, '@');
950 if (conf->krb_auth_realms && !ap_find_token(r->pool, conf->krb_auth_realms, p)) {
951 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
952 "Specified realm `%s' not allowed by configuration", p);
953 ret = HTTP_UNAUTHORIZED;
958 realms = (p) ? p : conf->krb_auth_realms;
959 all_principals_unkown = 1;
961 name = (char *) sent_name;
962 if (realms && (realm = ap_getword_white(r->pool, &realms)))
963 name = ap_psprintf(r->pool, "%s@%s", sent_name, realm);
966 krb5_free_principal(kcontext, client);
970 code = krb5_parse_name(kcontext, name, &client);
972 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
973 "krb5_parse_name() failed: %s",
974 krb5_get_err_text(kcontext, code));
978 code = verify_krb5_user(r, kcontext, client, sent_pw,
979 server, keytab, conf->krb_verify_kdc, &ccache);
980 if (!conf->krb_authoritative && code) {
981 /* if we're not authoritative, we allow authentication to pass on
982 * to another modules if (and only if) the user is not known to us */
983 if (all_principals_unkown && code != KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN)
984 all_principals_unkown = 0;
990 /* ap_getword_white() used above shifts the parameter, so it's not
991 needed to touch the realms variable */
992 } while (realms && *realms);
994 memset((char *)sent_pw, 0, strlen(sent_pw));
997 if (!conf->krb_authoritative && all_principals_unkown == 1 && code == KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN)
1000 ret = HTTP_UNAUTHORIZED;
1005 code = krb5_unparse_name(kcontext, client, &name);
1007 log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "krb5_unparse_name() failed: %s",
1008 krb5_get_err_text(kcontext, code));
1009 ret = HTTP_UNAUTHORIZED;
1012 MK_USER = ap_pstrdup (r->pool, name);
1013 MK_AUTH_TYPE = "Basic";
1016 if (conf->krb_save_credentials)
1017 store_krb5_creds(kcontext, r, conf, ccache);
1022 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
1023 "kerb_authenticate_user_krb5pwd ret=%d user=%s authtype=%s",
1024 ret, (MK_USER)?MK_USER:"(NULL)", (MK_AUTH_TYPE)?MK_AUTH_TYPE:"(NULL)");
1026 krb5_free_principal(kcontext, client);
1028 krb5_free_principal(kcontext, server);
1030 krb5_cc_destroy(kcontext, ccache);
1032 krb5_kt_close(kcontext, keytab);
1033 krb5_free_context(kcontext);
1038 /*********************************************************************
1039 * GSSAPI Authentication
1040 ********************************************************************/
1043 get_gss_error(MK_POOL *p, OM_uint32 err_maj, OM_uint32 err_min, char *prefix)
1045 OM_uint32 maj_stat, min_stat;
1046 OM_uint32 msg_ctx = 0;
1047 gss_buffer_desc status_string;
1050 err_msg = ap_pstrdup(p, prefix);
1052 maj_stat = gss_display_status (&min_stat,
1058 if (GSS_ERROR(maj_stat))
1060 err_msg = ap_pstrcat(p, err_msg, ": ", (char*) status_string.value, NULL);
1061 gss_release_buffer(&min_stat, &status_string);
1063 maj_stat = gss_display_status (&min_stat,
1069 if (!GSS_ERROR(maj_stat)) {
1070 err_msg = ap_pstrcat(p, err_msg,
1071 " (", (char*) status_string.value, ")", NULL);
1072 gss_release_buffer(&min_stat, &status_string);
1074 } while (!GSS_ERROR(maj_stat) && msg_ctx != 0);
1080 store_gss_creds(request_rec *r, kerb_auth_config *conf, char *princ_name,
1081 gss_cred_id_t delegated_cred)
1083 OM_uint32 maj_stat, min_stat;
1084 krb5_principal princ = NULL;
1085 krb5_ccache ccache = NULL;
1086 krb5_error_code problem;
1087 krb5_context context;
1088 int ret = HTTP_INTERNAL_SERVER_ERROR;
1090 problem = krb5_init_context(&context);
1092 log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "Cannot initialize krb5 context");
1093 return HTTP_INTERNAL_SERVER_ERROR;
1096 problem = krb5_parse_name(context, princ_name, &princ);
1098 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1099 "Cannot parse delegated username (%s)", krb5_get_err_text(context, problem));
1103 problem = create_krb5_ccache(context, r, conf, princ, &ccache);
1105 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1106 "Cannot create krb5 ccache (%s)", krb5_get_err_text(context, problem));
1110 maj_stat = gss_krb5_copy_ccache(&min_stat, delegated_cred, ccache);
1111 if (GSS_ERROR(maj_stat)) {
1112 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1113 "Cannot store delegated credential (%s)",
1114 get_gss_error(r->pool, maj_stat, min_stat, "gss_krb5_copy_ccache"));
1118 krb5_cc_close(context, ccache);
1124 krb5_free_principal(context, princ);
1126 krb5_cc_destroy(context, ccache);
1127 krb5_free_context(context);
1132 get_gss_creds(request_rec *r,
1133 kerb_auth_config *conf,
1134 gss_cred_id_t *server_creds)
1136 gss_buffer_desc token = GSS_C_EMPTY_BUFFER;
1137 OM_uint32 major_status, minor_status, minor_status2;
1138 gss_name_t server_name = GSS_C_NO_NAME;
1140 int have_server_princ;
1143 /* Suppress the MIT replay cache. Requires MIT Kerberos 1.4.0 or later.
1144 1.3.x are covered by the hack overiding the replay calls */
1145 if (getenv("KRB5RCACHETYPE") == NULL)
1146 putenv("KRB5RCACHETYPE=none");
1149 have_server_princ = conf->krb_service_name && strchr(conf->krb_service_name, '/') != NULL;
1150 if (have_server_princ)
1151 strncpy(buf, conf->krb_service_name, sizeof(buf));
1153 snprintf(buf, sizeof(buf), "%s@%s",
1154 (conf->krb_service_name) ? conf->krb_service_name : SERVICE_NAME,
1155 ap_get_server_name(r));
1158 token.length = strlen(buf) + 1;
1160 major_status = gss_import_name(&minor_status, &token,
1161 (have_server_princ) ? GSS_KRB5_NT_PRINCIPAL_NAME : GSS_C_NT_HOSTBASED_SERVICE,
1163 memset(&token, 0, sizeof(token));
1164 if (GSS_ERROR(major_status)) {
1165 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1166 "%s", get_gss_error(r->pool, major_status, minor_status,
1167 "gss_import_name() failed"));
1168 return HTTP_INTERNAL_SERVER_ERROR;
1171 major_status = gss_display_name(&minor_status, server_name, &token, NULL);
1172 if (GSS_ERROR(major_status)) {
1173 /* Perhaps we could just ignore this error but it's safer to give up now,
1175 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1176 "%s", get_gss_error(r->pool, major_status, minor_status,
1177 "gss_display_name() failed"));
1178 return HTTP_INTERNAL_SERVER_ERROR;
1181 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "Acquiring creds for %s",
1183 gss_release_buffer(&minor_status, &token);
1185 major_status = gss_acquire_cred(&minor_status, server_name, GSS_C_INDEFINITE,
1186 GSS_C_NO_OID_SET, GSS_C_ACCEPT,
1187 server_creds, NULL, NULL);
1188 gss_release_name(&minor_status2, &server_name);
1189 if (GSS_ERROR(major_status)) {
1190 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1191 "%s", get_gss_error(r->pool, major_status, minor_status,
1192 "gss_acquire_cred() failed"));
1193 return HTTP_INTERNAL_SERVER_ERROR;
1198 * With MIT Kerberos 5 1.3.x the gss_cred_id_t is the same as
1199 * krb5_gss_cred_id_t and krb5_gss_cred_id_rec contains a pointer to
1201 * This allows us to override the replay cache function vector with
1203 * Note that this is a dirty hack to get things working and there may
1204 * well be unknown side-effects.
1207 krb5_gss_cred_id_t gss_creds = (krb5_gss_cred_id_t) *server_creds;
1209 /* First we try to verify we are linked with 1.3.x to prevent from
1210 crashing when linked with 1.4.x */
1211 if (gss_creds && (gss_creds->usage == GSS_C_ACCEPT)) {
1212 if (gss_creds->rcache && gss_creds->rcache->ops &&
1213 gss_creds->rcache->ops->type &&
1214 memcmp(gss_creds->rcache->ops->type, "dfl", 3) == 0)
1215 /* Override the rcache operations */
1216 gss_creds->rcache->ops = &mod_auth_kerb_rc_ops;
1225 cmp_gss_type(gss_buffer_t token, gss_OID oid)
1230 if (token->length == 0)
1231 return GSS_S_DEFECTIVE_TOKEN;
1235 return GSS_S_DEFECTIVE_TOKEN;
1238 if ((len & 0x7f) > 4)
1239 return GSS_S_DEFECTIVE_TOKEN;
1243 return GSS_S_DEFECTIVE_TOKEN;
1245 if (((OM_uint32) *p++) != oid->length)
1246 return GSS_S_DEFECTIVE_TOKEN;
1248 return memcmp(p, oid->elements, oid->length);
1252 authenticate_user_gss(request_rec *r, kerb_auth_config *conf,
1253 const char *auth_line, char **negotiate_ret_value)
1255 OM_uint32 major_status, minor_status, minor_status2;
1256 gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
1257 gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER;
1258 const char *auth_param = NULL;
1260 gss_name_t client_name = GSS_C_NO_NAME;
1261 gss_cred_id_t delegated_cred = GSS_C_NO_CREDENTIAL;
1262 OM_uint32 (KRB5_LIB_FUNCTION *accept_sec_token)
1263 (OM_uint32 *, gss_ctx_id_t *, const gss_cred_id_t,
1264 const gss_buffer_t, const gss_channel_bindings_t,
1265 gss_name_t *, gss_OID *, gss_buffer_t, OM_uint32 *,
1266 OM_uint32 *, gss_cred_id_t *);
1267 gss_OID_desc spnego_oid;
1268 gss_ctx_id_t context = GSS_C_NO_CONTEXT;
1269 gss_cred_id_t server_creds = GSS_C_NO_CREDENTIAL;
1271 *negotiate_ret_value = "\0";
1273 spnego_oid.length = 6;
1274 spnego_oid.elements = (void *)"\x2b\x06\x01\x05\x05\x02";
1276 if (conf->krb_5_keytab) {
1278 /* we don't use the ap_* calls here, since the string passed to putenv()
1279 * will become part of the enviroment and shouldn't be free()ed by apache
1281 ktname = malloc(strlen("KRB5_KTNAME=") + strlen(conf->krb_5_keytab) + 1);
1282 if (ktname == NULL) {
1283 log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "malloc() failed: not enough memory");
1284 ret = HTTP_INTERNAL_SERVER_ERROR;
1287 sprintf(ktname, "KRB5_KTNAME=%s", conf->krb_5_keytab);
1290 /* Seems to be also supported by latest MIT */
1291 gsskrb5_register_acceptor_identity(conf->krb_5_keytab);
1295 ret = get_gss_creds(r, conf, &server_creds);
1299 /* ap_getword() shifts parameter */
1300 auth_param = ap_getword_white(r->pool, &auth_line);
1301 if (auth_param == NULL) {
1302 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1303 "No Authorization parameter in request from client");
1304 ret = HTTP_UNAUTHORIZED;
1308 input_token.length = ap_base64decode_len(auth_param) + 1;
1309 input_token.value = ap_pcalloc(r->connection->pool, input_token.length);
1310 if (input_token.value == NULL) {
1311 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1312 "ap_pcalloc() failed (not enough memory)");
1313 ret = HTTP_INTERNAL_SERVER_ERROR;
1316 input_token.length = ap_base64decode(input_token.value, auth_param);
1318 #ifdef GSSAPI_SUPPORTS_SPNEGO
1319 accept_sec_token = gss_accept_sec_context;
1321 accept_sec_token = (cmp_gss_type(&input_token, &spnego_oid) == 0) ?
1322 gss_accept_sec_context_spnego : gss_accept_sec_context;
1325 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "Verifying client data using %s",
1326 (accept_sec_token == gss_accept_sec_context)
1328 : "SPNEGO GSS-API");
1330 major_status = accept_sec_token(&minor_status,
1334 GSS_C_NO_CHANNEL_BINDINGS,
1341 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
1342 "Verification returned code %d", major_status);
1343 if (output_token.length) {
1347 len = ap_base64encode_len(output_token.length) + 1;
1348 token = ap_pcalloc(r->connection->pool, len + 1);
1349 if (token == NULL) {
1350 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1351 "ap_pcalloc() failed (not enough memory)");
1352 ret = HTTP_INTERNAL_SERVER_ERROR;
1353 gss_release_buffer(&minor_status2, &output_token);
1356 ap_base64encode(token, output_token.value, output_token.length);
1358 *negotiate_ret_value = token;
1359 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
1360 "GSS-API token of length %d bytes will be sent back",
1361 output_token.length);
1362 gss_release_buffer(&minor_status2, &output_token);
1363 set_kerb_auth_headers(r, conf, 0, 0, *negotiate_ret_value);
1366 if (GSS_ERROR(major_status)) {
1367 if (input_token.length > 7 && memcmp(input_token.value, "NTLMSSP", 7) == 0)
1368 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
1369 "Warning: received token seems to be NTLM, which isn't supported by the Kerberos module. Check your IE configuration.");
1371 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1372 "%s", get_gss_error(r->pool, major_status, minor_status,
1373 "gss_accept_sec_context() failed"));
1374 /* Don't offer the Negotiate method again if call to GSS layer failed */
1375 *negotiate_ret_value = NULL;
1376 ret = HTTP_UNAUTHORIZED;
1381 /* This is a _Kerberos_ module so multiple authentication rounds aren't
1382 * supported. If we wanted a generic GSS authentication we would have to do
1383 * some magic with exporting context etc. */
1384 if (major_status & GSS_S_CONTINUE_NEEDED) {
1385 ret = HTTP_UNAUTHORIZED;
1390 major_status = gss_display_name(&minor_status, client_name, &output_token, NULL);
1391 gss_release_name(&minor_status, &client_name);
1392 if (GSS_ERROR(major_status)) {
1393 log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1394 "%s", get_gss_error(r->pool, major_status, minor_status,
1395 "gss_export_name() failed"));
1396 ret = HTTP_INTERNAL_SERVER_ERROR;
1400 MK_AUTH_TYPE = MECH_NEGOTIATE;
1401 MK_USER = ap_pstrdup(r->pool, output_token.value);
1403 if (conf->krb_save_credentials && delegated_cred != GSS_C_NO_CREDENTIAL)
1404 store_gss_creds(r, conf, (char *)output_token.value, delegated_cred);
1406 gss_release_buffer(&minor_status, &output_token);
1412 gss_release_cred(&minor_status, &delegated_cred);
1414 if (output_token.length)
1415 gss_release_buffer(&minor_status, &output_token);
1417 if (client_name != GSS_C_NO_NAME)
1418 gss_release_name(&minor_status, &client_name);
1420 if (server_creds != GSS_C_NO_CREDENTIAL)
1421 gss_release_cred(&minor_status, &server_creds);
1423 if (context != GSS_C_NO_CONTEXT)
1424 gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
1431 already_succeeded(request_rec *r)
1433 if (ap_is_initial_req(r) || MK_AUTH_TYPE == NULL)
1435 if (strcmp(MK_AUTH_TYPE, MECH_NEGOTIATE) ||
1436 (strcmp(MK_AUTH_TYPE, "Basic") && strchr(MK_USER, '@')))
1442 set_kerb_auth_headers(request_rec *r, const kerb_auth_config *conf,
1443 int use_krb4, int use_krb5pwd, char *negotiate_ret_value)
1445 const char *auth_name = NULL;
1447 char *negoauth_param;
1448 const char *header_name =
1449 (r->proxyreq == PROXYREQ_PROXY) ? "Proxy-Authenticate" : "WWW-Authenticate";
1451 /* get the user realm specified in .htaccess */
1452 auth_name = ap_auth_name(r);
1454 /* XXX should the WWW-Authenticate header be cleared first?
1455 * apache in the proxy mode should retain client's authN headers? */
1457 if (negotiate_ret_value != NULL && conf->krb_method_gssapi) {
1458 negoauth_param = (*negotiate_ret_value == '\0') ? MECH_NEGOTIATE :
1459 ap_pstrcat(r->pool, MECH_NEGOTIATE " ", negotiate_ret_value, NULL);
1460 ap_table_add(r->err_headers_out, header_name, negoauth_param);
1462 if ((use_krb5pwd && conf->krb_method_k5pass) || conf->krb_delegate_basic) {
1463 ap_table_add(r->err_headers_out, header_name,
1464 ap_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
1471 ((use_krb4 && conf->krb_method_k4pass) || conf->krb_delegate_basic))
1472 ap_table_add(r->err_headers_out, header_name,
1473 ap_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
1478 kerb_authenticate_user(request_rec *r)
1480 kerb_auth_config *conf =
1481 (kerb_auth_config *) ap_get_module_config(r->per_dir_config,
1483 const char *auth_type = NULL;
1484 const char *auth_line = NULL;
1485 const char *type = NULL;
1486 int use_krb5 = 0, use_krb4 = 0;
1488 static int last_return = HTTP_UNAUTHORIZED;
1489 char *negotiate_ret_value = NULL;
1491 /* get the type specified in .htaccess */
1492 type = ap_auth_type(r);
1494 log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
1495 "kerb_authenticate_user entered with user %s and auth_type %s",
1496 (MK_USER)?MK_USER:"(NULL)",type?type:"(NULL)");
1498 if (type && strcasecmp(type, "Kerberos") == 0)
1499 use_krb5 = use_krb4 = 1;
1500 else if(type && strcasecmp(type, "KerberosV5") == 0)
1502 else if(type && strcasecmp(type, "KerberosV4") == 0)
1508 if (conf->krb_ssl_preauthentication) {
1509 const char *ssl_client_verify = ssl_var_lookup(r->pool, r->server,
1510 r->connection, r, "SSL_CLIENT_VERIFY");
1512 if (ssl_client_verify && strcmp(ssl_client_verify, "SUCCESS") == 0)
1517 /* get what the user sent us in the HTTP header */
1518 auth_line = MK_TABLE_GET(r->headers_in, (r->proxyreq == PROXYREQ_PROXY)
1519 ? "Proxy-Authorization"
1522 set_kerb_auth_headers(r, conf, use_krb4, use_krb5,
1523 (use_krb5) ? "\0" : NULL);
1524 return HTTP_UNAUTHORIZED;
1526 auth_type = ap_getword_white(r->pool, &auth_line);
1528 /* If we are delegating Basic to other modules, DECLINE the request */
1529 if (conf->krb_delegate_basic &&
1531 !conf->krb_method_k5pass &&
1534 !conf->krb_method_k4pass &&
1536 (strcasecmp(auth_type, "Basic") == 0))
1539 if (already_succeeded(r))
1542 ret = HTTP_UNAUTHORIZED;
1545 if (use_krb5 && conf->krb_method_gssapi &&
1546 strcasecmp(auth_type, MECH_NEGOTIATE) == 0) {
1547 ret = authenticate_user_gss(r, conf, auth_line, &negotiate_ret_value);
1548 } else if (use_krb5 && conf->krb_method_k5pass &&
1549 strcasecmp(auth_type, "Basic") == 0) {
1550 ret = authenticate_user_krb5pwd(r, conf, auth_line);
1555 if (ret == HTTP_UNAUTHORIZED && use_krb4 && conf->krb_method_k4pass &&
1556 strcasecmp(auth_type, "Basic") == 0)
1557 ret = authenticate_user_krb4pwd(r, conf, auth_line);
1560 if (ret == HTTP_UNAUTHORIZED)
1561 set_kerb_auth_headers(r, conf, use_krb4, use_krb5, negotiate_ret_value);
1563 /* XXX log_debug: if ret==OK, log(user XY authenticated) */
1570 /***************************************************************************
1571 Module Setup/Configuration
1572 ***************************************************************************/
1573 #ifndef STANDARD20_MODULE_STUFF
1574 module MODULE_VAR_EXPORT auth_kerb_module = {
1575 STANDARD_MODULE_STUFF,
1576 NULL, /* module initializer */
1577 kerb_dir_create_config, /* per-directory config creator */
1578 NULL, /* per-directory config merger */
1579 NULL, /* per-server config creator */
1580 NULL, /* per-server config merger */
1581 kerb_auth_cmds, /* command table */
1582 NULL, /* [ 9] content handlers */
1583 NULL, /* [ 2] URI-to-filename translation */
1584 kerb_authenticate_user, /* [ 5] check/validate user_id */
1585 NULL, /* [ 6] check user_id is valid *here* */
1586 NULL, /* [ 4] check access by host address */
1587 NULL, /* [ 7] MIME type checker/setter */
1588 NULL, /* [ 8] fixups */
1589 NULL, /* [10] logger */
1590 NULL, /* [ 3] header parser */
1591 NULL, /* process initialization */
1592 NULL, /* process exit/cleanup */
1593 NULL /* [ 1] post read_request handling */
1595 ,NULL, /* EAPI: add_module */
1596 NULL, /* EAPI: remove_module */
1597 NULL, /* EAPI: rewrite_command */
1598 NULL /* EAPI: new_connection */
1603 kerb_init_handler(apr_pool_t *p, apr_pool_t *plog,
1604 apr_pool_t *ptemp, server_rec *s)
1606 ap_add_version_component(p, "mod_auth_kerb/" MODAUTHKERB_VERSION);
1611 kerb_register_hooks(apr_pool_t *p)
1613 ap_hook_post_config(kerb_init_handler, NULL, NULL, APR_HOOK_MIDDLE);
1614 ap_hook_check_user_id(kerb_authenticate_user, NULL, NULL, APR_HOOK_MIDDLE);
1617 module AP_MODULE_DECLARE_DATA auth_kerb_module =
1619 STANDARD20_MODULE_STUFF,
1620 kerb_dir_create_config, /* create per-dir conf structures */
1621 NULL, /* merge per-dir conf structures */
1622 NULL, /* create per-server conf structures */
1623 NULL, /* merge per-server conf structures */
1624 kerb_auth_cmds, /* table of configuration directives */
1625 kerb_register_hooks /* register hooks */