Include Fedora patches to fix a lot of bugs and add compat with apache-2.4

(Portage version: 2.1.11.38/cvs/Linux x86_64, signed Manifest commit with key A188FBD4)

8 files changed, 915 insertions, 2 deletions

diff --git a/www-apache/mod_auth_kerb/ChangeLog b/www-apache/mod_auth_kerb/ChangeLog
index 40f4b0635d93..44e4774c3304 100644
--- a/www-apache/mod_auth_kerb/ChangeLog
+++ b/www-apache/mod_auth_kerb/ChangeLog
@@ -1,6 +1,16 @@
 # ChangeLog for www-apache/mod_auth_kerb
-# Copyright 1999-2012 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/www-apache/mod_auth_kerb/ChangeLog,v 1.11 2012/12/09 16:47:53 ulm Exp $
+# Copyright 1999-2013 Gentoo Foundation; Distributed under the GPL v2
+# $Header: /var/cvsroot/gentoo-x86/www-apache/mod_auth_kerb/ChangeLog,v 1.12 2013/01/03 18:58:44 pacho Exp $
+
+*mod_auth_kerb-5.4-r1 (03 Jan 2013)
+
+  03 Jan 2013; Pacho Ramos <pacho@gentoo.org>
+  +files/mod_auth_kerb-5.4-cachedir.patch,
+  +files/mod_auth_kerb-5.4-delegation.patch,
+  +files/mod_auth_kerb-5.4-fixes.patch, +files/mod_auth_kerb-5.4-httpd24.patch,
+  +files/mod_auth_kerb-5.4-rcopshack.patch,
+  +files/mod_auth_kerb-5.4-s4u2proxy.patch, +mod_auth_kerb-5.4-r1.ebuild:
+  Include Fedora patches to fix a lot of bugs and add compat with apache-2.4
 
   09 Dec 2012; Ulrich Müller <ulm@gentoo.org> mod_auth_kerb-5.3.ebuild,
   mod_auth_kerb-5.4.ebuild:
diff --git a/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-cachedir.patch b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-cachedir.patch
new file mode 100644
index 000000000000..ebc435824c4b
--- /dev/null
+++ b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-cachedir.patch
@@ -0,0 +1,15 @@
+
+Per https://bugzilla.redhat.com//show_bug.cgi?id=796430
+switch the cache dir to be relative to runtimedir.
+
+--- mod_auth_kerb-5.4/src/mod_auth_kerb.c.cachedir
++++ mod_auth_kerb-5.4/src/mod_auth_kerb.c
+@@ -891,7 +891,7 @@ create_krb5_ccache(krb5_context kcontext
+    int ret;
+    krb5_ccache tmp_ccache = NULL;
+ 
+-   ccname = apr_psprintf(r->connection->pool, "FILE:%s/krb5cc_apache_XXXXXX", P_tmpdir);
++   ccname = apr_pstrdup(r->connection->pool, "FILE:/run/httpd/krbcache/krb5cc_apache_XXXXXX");
+    fd = mkstemp(ccname + strlen("FILE:"));
+    if (fd < 0) {
+       log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
diff --git a/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-delegation.patch b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-delegation.patch
new file mode 100644
index 000000000000..a01e9f21e435
--- /dev/null
+++ b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-delegation.patch
@@ -0,0 +1,68 @@
+
+https://bugzilla.redhat.com/show_bug.cgi?id=688210
+
+--- mod_auth_kerb-5.4/src/mod_auth_kerb.c.delegation
++++ mod_auth_kerb-5.4/src/mod_auth_kerb.c
+@@ -209,6 +209,7 @@ typedef struct krb5_conn_data {
+ 	char *authline;
+ 	char *user;
+ 	char *mech;
++	char *ccname;
+ 	int  last_return;
+ } krb5_conn_data;
+ 
+@@ -875,7 +876,7 @@ create_krb5_ccache(krb5_context kcontext
+    int ret;
+    krb5_ccache tmp_ccache = NULL;
+ 
+-   ccname = apr_psprintf(r->pool, "FILE:%s/krb5cc_apache_XXXXXX", P_tmpdir);
++   ccname = apr_psprintf(r->connection->pool, "FILE:%s/krb5cc_apache_XXXXXX", P_tmpdir);
+    fd = mkstemp(ccname + strlen("FILE:"));
+    if (fd < 0) {
+       log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
+@@ -905,7 +906,7 @@ create_krb5_ccache(krb5_context kcontext
+    }
+ 
+    apr_table_setn(r->subprocess_env, "KRB5CCNAME", ccname);
+-   apr_pool_cleanup_register(r->pool, ccname, krb5_cache_cleanup,
++   apr_pool_cleanup_register(r->connection->pool, ccname, krb5_cache_cleanup,
+ 	 		     apr_pool_cleanup_null);
+ 
+    *ccache = tmp_ccache;
+@@ -1866,10 +1868,15 @@ already_succeeded(request_rec *r, char *
+    if (apr_pool_userdata_get((void**)&conn_data, keyname, r->connection->pool) != 0)
+ 	return NULL;
+ 
+-   if(conn_data) {
+-	if(strcmp(conn_data->authline, auth_line) == 0) {
+-		log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "matched previous auth request");
+-		return conn_data;
++   if(conn_data && conn_data->ccname != NULL) {
++       apr_finfo_t finfo;
++
++       if (apr_stat(&finfo, conn_data->ccname + strlen("FILE:"), 
++                    APR_FINFO_NORM, r->pool) == APR_SUCCESS
++           && (finfo.valid & APR_FINFO_TYPE)
++           && finfo.filetype == APR_REG) {
++           log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "matched previous auth request");
++           return conn_data;
+ 	}
+    }
+    return NULL;
+@@ -2001,6 +2008,8 @@ kerb_authenticate_user(request_rec *r)
+ 	ret = prevauth->last_return;
+ 	MK_USER = prevauth->user;
+ 	MK_AUTH_TYPE = prevauth->mech;
++	if (prevauth->ccname)
++		apr_table_setn(r->subprocess_env, "KRB5CCNAME", prevauth->ccname);
+    }
+ 
+    /*
+@@ -2011,6 +2020,7 @@ kerb_authenticate_user(request_rec *r)
+        prevauth->user = apr_pstrdup(r->connection->pool, MK_USER);
+        prevauth->authline = apr_pstrdup(r->connection->pool, auth_line);
+        prevauth->mech = apr_pstrdup(r->connection->pool, auth_type);
++       prevauth->ccname = apr_pstrdup(r->connection->pool, apr_table_get(r->subprocess_env, "KRB5CCNAME"));
+        prevauth->last_return = ret;
+        snprintf(keyname, sizeof(keyname) - 1,
+            "mod_auth_kerb::connection::%s::%ld", 
diff --git a/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-fixes.patch b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-fixes.patch
new file mode 100644
index 000000000000..b86be697ae06
--- /dev/null
+++ b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-fixes.patch
@@ -0,0 +1,40 @@
+
+Compiler warning fixes.
+
+--- mod_auth_kerb-5.4/src/mod_auth_kerb.c.fixes
++++ mod_auth_kerb-5.4/src/mod_auth_kerb.c
+@@ -677,7 +677,8 @@ end:
+ static krb5_error_code
+ verify_krb5_user(request_rec *r, krb5_context context, krb5_principal principal,
+       		 const char *password, krb5_principal server,
+-		 krb5_keytab keytab, int krb_verify_kdc, char *krb_service_name, krb5_ccache *ccache)
++		 krb5_keytab keytab, int krb_verify_kdc, 
++                 const char *krb_service_name, krb5_ccache *ccache)
+ {
+    krb5_creds creds;
+    krb5_get_init_creds_opt options;
+@@ -1280,6 +1281,7 @@ get_gss_creds(request_rec *r,
+    return 0;
+ }
+ 
++#ifndef GSSAPI_SUPPORTS_SPNEGO
+ static int
+ cmp_gss_type(gss_buffer_t token, gss_OID oid)
+ {
+@@ -1306,6 +1308,7 @@ cmp_gss_type(gss_buffer_t token, gss_OID
+ 
+    return memcmp(p, oid->elements, oid->length);
+ }
++#endif
+ 
+ static int
+ authenticate_user_gss(request_rec *r, kerb_auth_config *conf,
+@@ -1722,7 +1725,7 @@ kerb_authenticate_user(request_rec *r)
+    return ret;
+ }
+ 
+-int
++static int
+ have_rcache_type(const char *type)
+ {
+    krb5_error_code ret;
diff --git a/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-httpd24.patch b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-httpd24.patch
new file mode 100644
index 000000000000..86c9b47d6bd3
--- /dev/null
+++ b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-httpd24.patch
@@ -0,0 +1,75 @@
+
+Fixes for 2.4 API.
+
+--- mod_auth_kerb-5.4/src/mod_auth_kerb.c.httpd24
++++ mod_auth_kerb-5.4/src/mod_auth_kerb.c
+@@ -179,6 +179,16 @@ static apr_global_mutex_t *s4u2proxy_loc
+ #define PROXYREQ_PROXY STD_PROXY
+ #endif
+ 
++#if MODULE_MAGIC_NUMBER_MAJOR >= 20100606
++/* 2.4.x or later */
++#define WITH_HTTPD24 1
++#define client_ip(r) ((r)->useragent_ip)
++APLOG_USE_MODULE(auth_kerb);
++#else
++#define client_ip(r) ((r)->connection->remote_ip)
++#define ap_unixd_set_global_mutex_perms unixd_set_global_mutex_perms
++#endif
++
+ /*************************************************************************** 
+  Auth Configuration Structure
+  ***************************************************************************/
+@@ -383,7 +393,11 @@ cmd_delegationlock(cmd_parms *cmd, void
+ }
+ 
+ static void
+-log_rerror(const char *file, int line, int level, int status,
++log_rerror(const char *file, int line, 
++#ifdef WITH_HTTPD24
++	   int module_index,
++#endif
++	   int level, int status,
+            const request_rec *r, const char *fmt, ...)
+ {
+    char errstr[1024];
+@@ -394,7 +408,9 @@ log_rerror(const char *file, int line, i
+    va_end(ap);
+ 
+    
+-#ifdef STANDARD20_MODULE_STUFF
++#if defined(WITH_HTTPD24)
++   ap_log_rerror(file, line, module_index, level, status, r, "%s", errstr);
++#elif defined(STANDARD20_MODULE_STUFF)
+    ap_log_rerror(file, line, level | APLOG_NOERRNO, status, r, "%s", errstr);
+ #else
+    ap_log_rerror(file, line, level | APLOG_NOERRNO, r, "%s", errstr);
+@@ -1860,8 +1876,8 @@ already_succeeded(request_rec *r, char *
+    char keyname[1024];
+ 
+    snprintf(keyname, sizeof(keyname) - 1,
+-	"mod_auth_kerb::connection::%s::%ld", r->connection->remote_ip, 
+-	r->connection->id);
++	    "mod_auth_kerb::connection::%s::%ld", client_ip(r), 
++	    r->connection->id);
+ 
+    if (apr_pool_userdata_get((void**)&conn_data, keyname, r->connection->pool) != 0)
+ 	return NULL;
+@@ -2014,7 +2030,7 @@ kerb_authenticate_user(request_rec *r)
+        prevauth->last_return = ret;
+        snprintf(keyname, sizeof(keyname) - 1,
+            "mod_auth_kerb::connection::%s::%ld", 
+-	   r->connection->remote_ip, r->connection->id);
++		client_ip(r), r->connection->id);
+        apr_pool_userdata_set(prevauth, keyname, NULL, r->connection->pool);
+    }
+ 
+@@ -2073,7 +2089,7 @@ s4u2proxylock_create(server_rec *s, apr_
+     }
+ 
+ #ifdef AP_NEED_SET_MUTEX_PERMS
+-    rc = unixd_set_global_mutex_perms(s4u2proxy_lock);
++    rc = ap_unixd_set_global_mutex_perms(s4u2proxy_lock);
+     if (rc != APR_SUCCESS) {
+         ap_log_error(APLOG_MARK, APLOG_CRIT, rc, s,
+                      "mod_auth_kerb: Parent could not set permissions "
diff --git a/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-rcopshack.patch b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-rcopshack.patch
new file mode 100644
index 000000000000..abbf4dba47b2
--- /dev/null
+++ b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-rcopshack.patch
@@ -0,0 +1,73 @@
+
+Remove the Krb5 1.3.x-specific hack which mucks about with
+libkrb5 internals, and shouldn't.
+
+--- mod_auth_kerb-5.4/src/mod_auth_kerb.c.rcopshack
++++ mod_auth_kerb-5.4/src/mod_auth_kerb.c
+@@ -285,34 +285,6 @@ mkstemp(char *template)
+ }
+ #endif
+ 
+-#if defined(KRB5) && !defined(HEIMDAL)
+-/* Needed to work around problems with replay caches */
+-#include "mit-internals.h"
+-
+-/* This is our replacement krb5_rc_store function */
+-static krb5_error_code KRB5_LIB_FUNCTION
+-mod_auth_kerb_rc_store(krb5_context context, krb5_rcache rcache,
+-                       krb5_donot_replay_internal *donot_replay)
+-{
+-   return 0;
+-}
+-
+-/* And this is the operations vector for our replay cache */
+-const krb5_rc_ops_internal mod_auth_kerb_rc_ops = {
+-  0,
+-  "dfl",
+-  krb5_rc_dfl_init,
+-  krb5_rc_dfl_recover,
+-  krb5_rc_dfl_destroy,
+-  krb5_rc_dfl_close,
+-  mod_auth_kerb_rc_store,
+-  krb5_rc_dfl_expunge,
+-  krb5_rc_dfl_get_span,
+-  krb5_rc_dfl_get_name,
+-  krb5_rc_dfl_resolve
+-};
+-#endif
+-
+ /*************************************************************************** 
+  Auth Configuration Initialization
+  ***************************************************************************/
+@@ -1252,31 +1224,6 @@ get_gss_creds(request_rec *r,
+       return HTTP_INTERNAL_SERVER_ERROR;
+    }
+ 
+-#ifndef HEIMDAL
+-   /*
+-    * With MIT Kerberos 5 1.3.x the gss_cred_id_t is the same as
+-    * krb5_gss_cred_id_t and krb5_gss_cred_id_rec contains a pointer to
+-    * the replay cache.
+-    * This allows us to override the replay cache function vector with
+-    * our own one.
+-    * Note that this is a dirty hack to get things working and there may
+-    * well be unknown side-effects.
+-    */
+-   {
+-      krb5_gss_cred_id_t gss_creds = (krb5_gss_cred_id_t) *server_creds;
+-
+-      /* First we try to verify we are linked with 1.3.x to prevent from
+-         crashing when linked with 1.4.x */
+-      if (gss_creds && (gss_creds->usage == GSS_C_ACCEPT)) {
+-	 if (gss_creds->rcache && gss_creds->rcache->ops &&
+-	     gss_creds->rcache->ops->type &&  
+-	     memcmp(gss_creds->rcache->ops->type, "dfl", 3) == 0)
+-          /* Override the rcache operations */
+-	 gss_creds->rcache->ops = &mod_auth_kerb_rc_ops;
+-      }
+-   }
+-#endif
+-   
+    return 0;
+ }
+ 
diff --git a/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-s4u2proxy.patch b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-s4u2proxy.patch
new file mode 100644
index 000000000000..5afc0fad70dc
--- /dev/null
+++ b/www-apache/mod_auth_kerb/files/mod_auth_kerb-5.4-s4u2proxy.patch
@@ -0,0 +1,591 @@
+
+Add S4U2Proxy feature:
+
+http://sourceforge.net/mailarchive/forum.php?thread_name=4EE665D1.3000308%40redhat.com&forum_name=modauthkerb-help
+
+The attached patches add support for using s4u2proxy 
+(http://k5wiki.kerberos.org/wiki/Projects/Services4User) to allow the 
+web service to obtain credentials on behalf of the authenticated user.
+
+The first patch adds basic support for s4u2proxy. This requires the web 
+administrator to manually create and manage the credentails cache for 
+the apache user (via a cron job, for example).
+
+The second patch builds on this and makes mod_auth_kerb manage the 
+ccache instead.
+
+These are patches against the current CVS HEAD (mod_auth_krb 5.4).
+
+I've added a new module option to enable this support, 
+KrbConstrainedDelegation. The default is off.
+
+--- mod_auth_kerb-5.4.orig/README	2008-11-26 11:51:05.000000000 -0500
++++ mod_auth_kerb-5.4/README	2012-01-04 11:17:22.000000000 -0500
+@@ -122,4 +122,16 @@ KrbSaveCredentials, the tickets will be 
+ credential cache that will be available for the request handler. The ticket
+ file will be removed after request is handled.
+ 
++Constrained Delegation
++----------------------
++S4U2Proxy, or constrained delegation, enables a service to use a client's
++ticket to itself to request another ticket for delegation. The KDC
++checks krbAllowedToDelegateTo to decide if it will issue a new ticket.
++If KrbConstrainedDelegation is enabled the server will use its own credentials
++to retrieve a delegated ticket for the user. For this to work the user must
++have a forwardable ticket (though the delegation flag need not be set).
++The server needs a valid credentials cache for this to work.
++
++The module itself will obtain and manage the necessary credentials.
++
+ $Id: mod_auth_kerb-5.4-s4u2proxy.patch,v 1.1 2013/01/03 18:58:44 pacho Exp $
+diff -up --recursive mod_auth_kerb-5.4.orig/src/mod_auth_kerb.c mod_auth_kerb-5.4/src/mod_auth_kerb.c
+--- mod_auth_kerb-5.4.orig/src/mod_auth_kerb.c	2011-12-09 17:55:05.000000000 -0500
++++ mod_auth_kerb-5.4/src/mod_auth_kerb.c	2012-03-01 14:19:40.000000000 -0500
+@@ -42,6 +42,31 @@
+  * POSSIBILITY OF SUCH DAMAGE.
+  */
+ 
++/*
++ * Locking mechanism inspired by mod_rewrite.
++ *
++ * Licensed to the Apache Software Foundation (ASF) under one or more
++ * contributor license agreements.  See the NOTICE file distributed with
++ * this work for additional information regarding copyright ownership.
++ * The ASF licenses this file to You under the Apache License, Version 2.0
++ * (the "License"); you may not use this file except in compliance with
++ * the License.  You may obtain a copy of the License at
++ *
++ *     http://www.apache.org/licenses/LICENSE-2.0
++ *
++ * Unless required by applicable law or agreed to in writing, software
++ * distributed under the License is distributed on an "AS IS" BASIS,
++ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
++ * See the License for the specific language governing permissions and
++ * limitations under the License.
++ */
++
++/*
++ * S4U2Proxy code
++ *
++ * Copyright (C) 2012  Red Hat
++ */
++
+ #ident "$Id: mod_auth_kerb-5.4-s4u2proxy.patch,v 1.1 2013/01/03 18:58:44 pacho Exp $"
+ 
+ #include "config.h"
+@@ -49,6 +74,7 @@
+ #include <stdlib.h>
+ #include <stdio.h>
+ #include <stdarg.h>
++#include <unixd.h>
+ 
+ #define MODAUTHKERB_VERSION "5.4"
+ 
+@@ -131,6 +157,12 @@ module AP_MODULE_DECLARE_DATA auth_kerb_
+ module auth_kerb_module;
+ #endif
+ 
++#ifdef STANDARD20_MODULE_STUFF
++/* s4u2proxy only supported in 2.0+ */
++static const char *lockname;
++static apr_global_mutex_t *s4u2proxy_lock = NULL;
++#endif
++
+ /*************************************************************************** 
+  Macros To Ease Compatibility
+  ***************************************************************************/
+@@ -165,6 +197,7 @@ typedef struct {
+ 	int krb_method_gssapi;
+ 	int krb_method_k5pass;
+ 	int krb5_do_auth_to_local;
++       int krb5_s4u2proxy;
+ #endif
+ #ifdef KRB4
+ 	char *krb_4_srvtab;
+@@ -185,6 +218,11 @@ set_kerb_auth_headers(request_rec *r, co
+ 
+ static const char*
+ krb5_save_realms(cmd_parms *cmd, void *sec, const char *arg);
++static const char *
++cmd_delegationlock(cmd_parms *cmd, void *dconf, const char *a1);
++
++static int
++obtain_server_credentials(request_rec *r, const char *service_name);
+ 
+ #ifdef STANDARD20_MODULE_STUFF
+ #define command(name, func, var, type, usage)           \
+@@ -237,6 +275,12 @@ static const command_rec kerb_auth_cmds[
+ 
+    command("KrbLocalUserMapping", ap_set_flag_slot, krb5_do_auth_to_local,
+      FLAG, "Set to 'on' to have Kerberos do auth_to_local mapping of principal names to system user names."),
++
++   command("KrbConstrainedDelegation", ap_set_flag_slot, krb5_s4u2proxy,
++     FLAG, "Set to 'on' to have Kerberos use S4U2Proxy delegation."),
++
++    AP_INIT_TAKE1("KrbConstrainedDelegationLock", cmd_delegationlock, NULL,
++     RSRC_CONF, "the filename of a lockfile used for inter-process synchronization"),
+ #endif 
+ 
+ #ifdef KRB4
+@@ -302,6 +346,7 @@ static void *kerb_dir_create_config(MK_P
+ #endif
+ #ifdef KRB5
+   ((kerb_auth_config *)rec)->krb5_do_auth_to_local = 0;
++	((kerb_auth_config *)rec)->krb5_s4u2proxy = 0;
+ 	((kerb_auth_config *)rec)->krb_method_k5pass = 1;
+ 	((kerb_auth_config *)rec)->krb_method_gssapi = 1;
+ #endif
+@@ -319,6 +364,24 @@ krb5_save_realms(cmd_parms *cmd, void *v
+    return NULL;
+ }
+ 
++static const char *
++cmd_delegationlock(cmd_parms *cmd, void *dconf, const char *a1)
++{
++    const char *error;
++
++    if ((error = ap_check_cmd_context(cmd, GLOBAL_ONLY)) != NULL)
++        return error;
++
++    /* fixup the path, especially for s4u2proxylock_remove() */
++    lockname = ap_server_root_relative(cmd->pool, a1);
++
++    if (!lockname) {
++        return apr_pstrcat(cmd->pool, "Invalid KrbConstrainedDelegationLock path ", a1, NULL);
++    }
++
++    return NULL;
++}
++
+ static void
+ log_rerror(const char *file, int line, int level, int status,
+            const request_rec *r, const char *fmt, ...)
+@@ -1170,6 +1233,7 @@ get_gss_creds(request_rec *r,
+    gss_buffer_desc token = GSS_C_EMPTY_BUFFER;
+    OM_uint32 major_status, minor_status, minor_status2;
+    gss_name_t server_name = GSS_C_NO_NAME;
++   gss_cred_usage_t usage = GSS_C_ACCEPT;
+    char buf[1024];
+    int have_server_princ;
+ 
+@@ -1212,10 +1276,14 @@ get_gss_creds(request_rec *r,
+ 
+    log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "Acquiring creds for %s",
+ 	      token.value);
++   if (conf->krb5_s4u2proxy) {
++       usage = GSS_C_BOTH;
++       obtain_server_credentials(r, conf->krb_service_name);
++   }
+    gss_release_buffer(&minor_status, &token);
+    
+    major_status = gss_acquire_cred(&minor_status, server_name, GSS_C_INDEFINITE,
+-			           GSS_C_NO_OID_SET, GSS_C_ACCEPT,
++			           GSS_C_NO_OID_SET, usage,
+ 				   server_creds, NULL, NULL);
+    gss_release_name(&minor_status2, &server_name);
+    if (GSS_ERROR(major_status)) {
+@@ -1257,6 +1325,293 @@ cmp_gss_type(gss_buffer_t token, gss_OID
+ }
+ #endif
+ 
++/* Renew the ticket if it will expire in under a minute */
++#define RENEWAL_TIME 60
++
++/*
++ * Services4U2Proxy lets a server prinicipal request another service
++ * principal on behalf of a user. To do this the Apache service needs
++ * to have its own ccache. This will ensure that the ccache has a valid
++ * principal and will initialize or renew new credentials when needed.
++ */
++
++static int
++verify_server_credentials(request_rec *r,
++                          krb5_context kcontext,
++                          krb5_ccache ccache,
++                          krb5_principal princ,
++                          int *renew
++)
++{
++    krb5_creds match_cred;
++    krb5_creds creds;
++    char * princ_name = NULL;
++    char *tgs_princ_name = NULL;
++    krb5_timestamp now;
++    krb5_error_code kerr = 0;
++
++    *renew = 0;
++
++    memset (&match_cred, 0, sizeof(match_cred));
++    memset (&creds, 0, sizeof(creds));
++
++    if (NULL == ccache || NULL == princ) {
++        /* Nothing to verify */
++        *renew = 1;
++        goto cleanup;
++    }
++
++    if ((kerr = krb5_unparse_name(kcontext, princ, &princ_name))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                   "Could not unparse principal %s (%d)",
++                   error_message(kerr), kerr);
++        goto cleanup;
++    }
++
++    log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++        "Using principal %s for s4u2proxy", princ_name);
++
++    tgs_princ_name = apr_psprintf(r->pool, "%s/%.*s@%.*s", KRB5_TGS_NAME,
++                                  krb5_princ_realm(kcontext, princ)->length,
++                                  krb5_princ_realm(kcontext, princ)->data,
++                                  krb5_princ_realm(kcontext, princ)->length,
++                                  krb5_princ_realm(kcontext, princ)->data);
++
++    if ((kerr = krb5_parse_name(kcontext, tgs_princ_name, &match_cred.server))) 
++    {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                        "Could not parse principal %s: %s (%d)",
++                        tgs_princ_name, error_message(kerr), kerr);
++        goto cleanup;
++    }
++
++    match_cred.client = princ;
++
++    if ((kerr = krb5_cc_retrieve_cred(kcontext, ccache, 0, &match_cred, &creds)))
++    {
++        krb5_unparse_name(kcontext, princ, &princ_name);
++        log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++                   "Could not unparse principal %s: %s (%d)",
++                   princ_name, error_message(kerr), kerr);
++        goto cleanup;
++    }
++
++    if ((kerr = krb5_timeofday(kcontext, &now))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                        "Could not get current time: %d (%s)",
++                        kerr, error_message(kerr));
++        goto cleanup;
++    }
++
++    if (now > (creds.times.endtime + RENEWAL_TIME)) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                   "Credentials for %s have expired or will soon "
++                   "expire - now %d endtime %d",
++                   princ_name, now, creds.times.endtime);
++        *renew = 1;
++    } else {
++        log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++                   "Credentials for %s will expire at "
++                   "%d, it is now %d", princ_name, creds.times.endtime, now);
++    }
++
++cleanup:
++    /* Closing context, ccache, etc happens elsewhere */
++    if (match_cred.server) {
++        krb5_free_principal(kcontext, match_cred.server);
++    }
++    if (creds.client) {
++        krb5_free_cred_contents(kcontext, &creds);
++    }
++
++    return kerr;
++}
++
++static int
++obtain_server_credentials(request_rec *r,
++                          const char *service_name)
++{
++    krb5_context kcontext = NULL;
++    krb5_keytab keytab = NULL;
++    krb5_ccache ccache = NULL;
++    char * princ_name = NULL;
++    char *tgs_princ_name = NULL;
++    krb5_error_code kerr = 0;
++    krb5_principal princ = NULL;
++    krb5_creds creds;
++    krb5_get_init_creds_opt gicopts;
++    int renew = 0;
++    apr_status_t rv = 0;
++
++    memset(&creds, 0, sizeof(creds));
++
++    if ((kerr = krb5_init_context(&kcontext))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++            "Kerberos context initialization failed: %s (%d)", error_message(kerr), kerr);
++        goto done;
++    }
++
++    if ((kerr = krb5_cc_default(kcontext, &ccache))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                        "Could not get default Kerberos ccache: %s (%d)",
++                        error_message(kerr), kerr);
++        goto done;
++    }
++
++    if ((kerr = krb5_cc_get_principal(kcontext, ccache, &princ))) {
++        char * name = NULL;
++
++        if ((asprintf(&name, "%s:%s", krb5_cc_get_type(kcontext, ccache),
++          krb5_cc_get_name(kcontext, ccache))) == -1) {
++            kerr = KRB5_CC_NOMEM;
++            goto done;
++        }
++
++        if (KRB5_FCC_NOFILE == kerr) {
++            log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++                       "Credentials cache %s not found, create one", name);
++            krb5_cc_close(kcontext, ccache);
++            ccache = NULL;
++            free(name);
++        } else {
++            log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                       "Failure to open credentials cache %s: %s (%d)",
++                       name, error_message(kerr), kerr);
++            free(name);
++            goto done;
++        }
++    }
++
++    kerr = verify_server_credentials(r, kcontext, ccache, princ, &renew);
++
++    if (kerr || !renew) {
++        goto done;
++    }
++
++#ifdef STANDARD20_MODULE_STUFF
++    if (s4u2proxy_lock) {
++        rv = apr_global_mutex_lock(s4u2proxy_lock);
++        if (rv != APR_SUCCESS) {
++            ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
++                          "apr_global_mutex_lock(s4u2proxy_lock) "
++                          "failed");
++        }
++    }
++#endif
++
++    /* We have the lock, check again to be sure another process hasn't already
++     * renewed the ticket.
++     */
++    kerr = verify_server_credentials(r, kcontext, ccache, princ, &renew);
++    if (kerr || !renew) {
++        goto unlock;
++    }
++
++    if (NULL == princ) {
++        princ_name = apr_psprintf(r->pool, "%s/%s",
++            (service_name) ? service_name : SERVICE_NAME,
++            ap_get_server_name(r));
++
++        if ((kerr = krb5_parse_name(kcontext, princ_name, &princ))) {
++            log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                       "Could not parse principal %s: %s (%d) ",
++                       princ_name, error_message(kerr), kerr);
++            goto unlock;
++        }
++    } else if (NULL == princ_name) {
++        if ((kerr = krb5_unparse_name(kcontext, princ, &princ_name))) {
++            log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++                       "Could not unparse principal %s: %s (%d)",
++                       princ_name, error_message(kerr), kerr);
++            goto unlock;
++        }
++    }
++
++    if ((kerr = krb5_kt_default(kcontext, &keytab))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                   "Unable to get default keytab: %s (%d)",
++                   error_message(kerr), kerr);
++        goto unlock;
++    }
++
++    log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++               "Obtaining new credentials for %s", princ_name);
++    krb5_get_init_creds_opt_init(&gicopts);
++    krb5_get_init_creds_opt_set_forwardable(&gicopts, 1);
++
++    tgs_princ_name = apr_psprintf(r->pool, "%s/%.*s@%.*s", KRB5_TGS_NAME,
++                                  krb5_princ_realm(kcontext, princ)->length,
++                                  krb5_princ_realm(kcontext, princ)->data,
++                                  krb5_princ_realm(kcontext, princ)->length,
++                                  krb5_princ_realm(kcontext, princ)->data);
++
++    if ((kerr = krb5_get_init_creds_keytab(kcontext, &creds, princ, keytab,
++         0, tgs_princ_name, &gicopts))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                   "Failed to obtain credentials for principal %s: "
++                   "%s (%d)", princ_name, error_message(kerr), kerr);
++        goto unlock;
++    }
++
++    krb5_kt_close(kcontext, keytab);
++    keytab = NULL;
++
++    if (NULL == ccache) {
++        if ((kerr = krb5_cc_default(kcontext, &ccache))) {
++            log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                      "Failed to open default ccache: %s (%d)",
++                      error_message(kerr), kerr);
++            goto unlock;
++        }
++    }
++
++    if ((kerr = krb5_cc_initialize(kcontext, ccache, princ))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                   "Failed to initialize ccache for %s: %s (%d)",
++                   princ_name, error_message(kerr), kerr);
++        goto unlock;
++    }
++
++    if ((kerr = krb5_cc_store_cred(kcontext, ccache, &creds))) {
++        log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
++                   "Failed to store %s in ccache: %s (%d)",
++                   princ_name, error_message(kerr), kerr);
++        goto unlock;
++    }
++
++unlock:
++#ifdef STANDARD20_MODULE_STUFF
++    if (s4u2proxy_lock) {
++        apr_global_mutex_unlock(s4u2proxy_lock);
++        if (rv != APR_SUCCESS) {
++            ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
++                          "apr_global_mutex_unlock(s4u2proxy_lock) "
++                          "failed");
++        }
++    }
++#endif
++
++done:
++    if (0 == kerr)
++        log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++                   "Done obtaining credentials for s4u2proxy");
++    else
++        log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
++                   "Failed to obtain credentials for s4u2proxy");
++
++    if (creds.client) {
++        krb5_free_cred_contents(kcontext, &creds);
++    }
++    if (ccache) {
++        krb5_cc_close(kcontext, ccache);
++    }
++    if (kcontext) {
++        krb5_free_context(kcontext);
++    }
++
++    return kerr;
++}
++
+ static int
+ authenticate_user_gss(request_rec *r, kerb_auth_config *conf,
+ 		      const char *auth_line, char **negotiate_ret_value)
+@@ -1697,10 +2052,60 @@ have_rcache_type(const char *type)
+ /*************************************************************************** 
+  Module Setup/Configuration
+  ***************************************************************************/
++#ifdef STANDARD20_MODULE_STUFF
++static apr_status_t
++s4u2proxylock_create(server_rec *s, apr_pool_t *p)
++{
++    apr_status_t rc;
++
++    /* only operate if a lockfile is used */
++    if (lockname == NULL || *(lockname) == '\0') {
++        return APR_SUCCESS;
++    }
++
++    /* create the lockfile */
++    rc = apr_global_mutex_create(&s4u2proxy_lock, lockname,
++                                 APR_LOCK_DEFAULT, p);
++    if (rc != APR_SUCCESS) {
++        ap_log_error(APLOG_MARK, APLOG_CRIT, rc, s,
++                     "Parent could not create lock file %s", lockname);
++        return rc;
++    }
++
++#ifdef AP_NEED_SET_MUTEX_PERMS
++    rc = unixd_set_global_mutex_perms(s4u2proxy_lock);
++    if (rc != APR_SUCCESS) {
++        ap_log_error(APLOG_MARK, APLOG_CRIT, rc, s,
++                     "mod_auth_kerb: Parent could not set permissions "
++                     "on lock; check User and Group directives");
++        return rc;
++    }
++#endif
++
++    return APR_SUCCESS;
++}
++
++static apr_status_t
++s4u2proxylock_remove(void *unused)
++{
++    /* only operate if a lockfile is used */
++    if (lockname == NULL || *(lockname) == '\0') {
++        return APR_SUCCESS;
++    }
++
++    /* destroy the rewritelock */
++    apr_global_mutex_destroy(s4u2proxy_lock);
++    s4u2proxy_lock = NULL;
++    lockname = NULL;
++    return APR_SUCCESS;
++}
++#endif
++
+ #ifndef STANDARD20_MODULE_STUFF
+ static void
+ kerb_module_init(server_rec *dummy, pool *p)
+ {
++   apr_status_t status;
+ #ifndef HEIMDAL
+    /* Suppress the MIT replay cache.  Requires MIT Kerberos 1.4.0 or later.
+       1.3.x are covered by the hack overiding the replay calls */
+@@ -1741,6 +2146,7 @@ static int
+ kerb_init_handler(apr_pool_t *p, apr_pool_t *plog,
+       		  apr_pool_t *ptemp, server_rec *s)
+ {
++   apr_status_t rv;
+    ap_add_version_component(p, "mod_auth_kerb/" MODAUTHKERB_VERSION);
+ #ifndef HEIMDAL
+    /* Suppress the MIT replay cache.  Requires MIT Kerberos 1.4.0 or later.
+@@ -1748,14 +2154,41 @@ kerb_init_handler(apr_pool_t *p, apr_poo
+    if (getenv("KRB5RCACHETYPE") == NULL && have_rcache_type("none"))
+       putenv(strdup("KRB5RCACHETYPE=none"));
+ #endif
++#ifdef STANDARD20_MODULE_STUFF
++    rv = s4u2proxylock_create(s, p);
++    if (rv != APR_SUCCESS) {
++        return HTTP_INTERNAL_SERVER_ERROR;
++    }
++
++    apr_pool_cleanup_register(p, (void *)s, s4u2proxylock_remove,
++                              apr_pool_cleanup_null);
++#endif
+    
+    return OK;
+ }
+ 
+ static void
++initialize_child(apr_pool_t *p, server_rec *s)
++{
++    apr_status_t rv = 0;
++
++#ifdef STANDARD20_MODULE_STUFF
++    if (lockname != NULL && *(lockname) != '\0') {
++        rv = apr_global_mutex_child_init(&s4u2proxy_lock, lockname, p);
++        if (rv != APR_SUCCESS) {
++            ap_log_error(APLOG_MARK, APLOG_CRIT, rv, s,
++                         "mod_auth_kerb: could not init s4u2proxy_lock"
++                         " in child");
++        }
++    }
++#endif
++}
++
++static void
+ kerb_register_hooks(apr_pool_t *p)
+ {
+    ap_hook_post_config(kerb_init_handler, NULL, NULL, APR_HOOK_MIDDLE);
++   ap_hook_child_init(initialize_child, NULL, NULL, APR_HOOK_MIDDLE);
+    ap_hook_check_user_id(kerb_authenticate_user, NULL, NULL, APR_HOOK_MIDDLE);
+ }
+ 
diff --git a/www-apache/mod_auth_kerb/mod_auth_kerb-5.4-r1.ebuild b/www-apache/mod_auth_kerb/mod_auth_kerb-5.4-r1.ebuild
new file mode 100644
index 000000000000..2ace6a0dc875
--- /dev/null
+++ b/www-apache/mod_auth_kerb/mod_auth_kerb-5.4-r1.ebuild
@@ -0,0 +1,41 @@
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/www-apache/mod_auth_kerb/mod_auth_kerb-5.4-r1.ebuild,v 1.1 2013/01/03 18:58:44 pacho Exp $
+
+inherit apache-module eutils
+
+DESCRIPTION="An Apache authentication module using Kerberos."
+HOMEPAGE="http://modauthkerb.sourceforge.net/"
+SRC_URI="mirror://sourceforge/modauthkerb/${P}.tar.gz"
+
+LICENSE="BSD openafs-krb5-a HPND"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+
+DEPEND="virtual/krb5"
+RDEPEND="${DEPEND}"
+
+APACHE2_MOD_CONF="11_${PN}"
+APACHE2_MOD_DEFINE="AUTH_KERB"
+
+DOCFILES="INSTALL README"
+
+need_apache2_2
+
+src_unpack() {
+	unpack ${A}
+	cd "${S}"
+
+	epatch "${FILESDIR}"/${P}-rcopshack.patch
+	epatch "${FILESDIR}"/${P}-fixes.patch
+	epatch "${FILESDIR}"/${P}-s4u2proxy.patch
+	epatch "${FILESDIR}"/${P}-httpd24.patch
+	epatch "${FILESDIR}"/${P}-delegation.patch
+	epatch "${FILESDIR}"/${P}-cachedir.patch
+}
+
+src_compile() {
+	CFLAGS="" APXS="${APXS}" econf --with-krb5=/usr --without-krb4 || die "econf failed"
+	emake || die "emake failed"
+}