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- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2000-2003 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
- #ifndef UTIL_LDAP_H
- #define UTIL_LDAP_H
-
- #include <apr_ldap.h>
-
- /* this whole thing disappears if LDAP is not enabled */
- #ifdef APU_HAS_LDAP
-
- /* APR header files */
- #include <apr_thread_mutex.h>
- #include <apr_thread_rwlock.h>
- #include <apr_tables.h>
- #include <apr_time.h>
-
- /* Apache header files */
- #include "ap_config.h"
- #include "httpd.h"
- #include "http_config.h"
- #include "http_core.h"
- #include "http_log.h"
- #include "http_protocol.h"
- #include "http_request.h"
-
-
- /* Create a set of LDAP_DECLARE(type), LDLDAP_DECLARE(type) and
- * LDAP_DECLARE_DATA with appropriate export and import tags for the platform
- */
- #if !defined(WIN32)
- #define LDAP_DECLARE(type) type
- #define LDAP_DECLARE_NONSTD(type) type
- #define LDAP_DECLARE_DATA
- #elif defined(LDAP_DECLARE_STATIC)
- #define LDAP_DECLARE(type) type __stdcall
- #define LDAP_DECLARE_NONSTD(type) type
- #define LDAP_DECLARE_DATA
- #elif defined(LDAP_DECLARE_EXPORT)
- #define LDAP_DECLARE(type) __declspec(dllexport) type __stdcall
- #define LDAP_DECLARE_NONSTD(type) __declspec(dllexport) type
- #define LDAP_DECLARE_DATA __declspec(dllexport)
- #else
- #define LDAP_DECLARE(type) __declspec(dllimport) type __stdcall
- #define LDAP_DECLARE_NONSTD(type) __declspec(dllimport) type
- #define LDAP_DECLARE_DATA __declspec(dllimport)
- #endif
-
-
- /*
- * LDAP Connections
- */
-
- /* Values that the deref member can have */
- typedef enum {
- never=LDAP_DEREF_NEVER,
- searching=LDAP_DEREF_SEARCHING,
- finding=LDAP_DEREF_FINDING,
- always=LDAP_DEREF_ALWAYS
- } deref_options;
-
- /* Structure representing an LDAP connection */
- typedef struct util_ldap_connection_t {
- LDAP *ldap;
- apr_pool_t *pool; /* Pool from which this connection is created */
- #if APR_HAS_THREADS
- apr_thread_mutex_t *lock; /* Lock to indicate this connection is in use */
- #endif
- int bound; /* Flag to indicate whether this connection is bound yet */
-
- const char *host; /* Name of the LDAP server (or space separated list) */
- int port; /* Port of the LDAP server */
- deref_options deref; /* how to handle alias dereferening */
-
- const char *binddn; /* DN to bind to server (can be NULL) */
- const char *bindpw; /* Password to bind to server (can be NULL) */
-
- int secure; /* True if use SSL connection */
-
- const char *reason; /* Reason for an error failure */
-
- struct util_ldap_connection_t *next;
- } util_ldap_connection_t;
-
- /* LDAP cache state information */
- typedef struct util_ldap_state_t {
- apr_pool_t *pool; /* pool from which this state is allocated */
- #if APR_HAS_THREADS
- apr_thread_mutex_t *mutex; /* mutex lock for the connection list */
- #endif
-
- apr_size_t cache_bytes; /* Size (in bytes) of shared memory cache */
- long search_cache_ttl; /* TTL for search cache */
- long search_cache_size; /* Size (in entries) of search cache */
- long compare_cache_ttl; /* TTL for compare cache */
- long compare_cache_size; /* Size (in entries) of compare cache */
-
- struct util_ldap_connection_t *connections;
- char *cert_auth_file;
- int cert_file_type;
- int ssl_support;
- } util_ldap_state_t;
-
-
- /**
- * Open a connection to an LDAP server
- * @param ldc A structure containing the expanded details of the server
- * to connect to. The handle to the LDAP connection is returned
- * as ldc->ldap.
- * @tip This function connects to the LDAP server and binds. It does not
- * connect if already connected (ldc->ldap != NULL). Does not bind
- * if already bound.
- * @return If successful LDAP_SUCCESS is returned.
- * @deffunc int util_ldap_connection_open(request_rec *r,
- * util_ldap_connection_t *ldc)
- */
- LDAP_DECLARE(int) util_ldap_connection_open(request_rec *r,
- util_ldap_connection_t *ldc);
-
- /**
- * Close a connection to an LDAP server
- * @param ldc A structure containing the expanded details of the server
- * that was connected.
- * @tip This function unbinds from the LDAP server, and clears ldc->ldap.
- * It is possible to rebind to this server again using the same ldc
- * structure, using apr_ldap_open_connection().
- * @deffunc util_ldap_close_connection(util_ldap_connection_t *ldc)
- */
- LDAP_DECLARE(void) util_ldap_connection_close(util_ldap_connection_t *ldc);
-
- /**
- * Destroy a connection to an LDAP server
- * @param ldc A structure containing the expanded details of the server
- * that was connected.
- * @tip This function is registered with the pool cleanup to close down the
- * LDAP connections when the server is finished with them.
- * @deffunc apr_status_t util_ldap_connection_destroy(util_ldap_connection_t *ldc)
- */
- LDAP_DECLARE_NONSTD(apr_status_t) util_ldap_connection_destroy(void *param);
-
- /**
- * Find a connection in a list of connections
- * @param r The request record
- * @param host The hostname to connect to (multiple hosts space separated)
- * @param port The port to connect to
- * @param binddn The DN to bind with
- * @param bindpw The password to bind with
- * @param deref The dereferencing behavior
- * @param secure use SSL on the connection
- * @tip Once a connection is found and returned, a lock will be acquired to
- * lock that particular connection, so that another thread does not try and
- * use this connection while it is busy. Once you are finished with a connection,
- * apr_ldap_connection_close() must be called to release this connection.
- * @deffunc util_ldap_connection_t *util_ldap_connection_find(request_rec *r, const char *host, int port,
- * const char *binddn, const char *bindpw, deref_options deref,
- * int netscapessl, int starttls)
- */
- LDAP_DECLARE(util_ldap_connection_t *) util_ldap_connection_find(request_rec *r, const char *host, int port,
- const char *binddn, const char *bindpw, deref_options deref,
- int secure);
-
-
- /**
- * Compare two DNs for sameness
- * @param r The request record
- * @param ldc The LDAP connection being used.
- * @param url The URL of the LDAP connection - used for deciding which cache to use.
- * @param dn The first DN to compare.
- * @param reqdn The DN to compare the first DN to.
- * @param compare_dn_on_server Flag to determine whether the DNs should be checked using
- * LDAP calls or with a direct string comparision. A direct
- * string comparison is faster, but not as accurate - false
- * negative comparisons are possible.
- * @tip Two DNs can be equal and still fail a string comparison. Eg "dc=example,dc=com"
- * and "dc=example, dc=com". Use the compare_dn_on_server unless there are serious
- * performance issues.
- * @deffunc int util_ldap_cache_comparedn(request_rec *r, util_ldap_connection_t *ldc,
- * const char *url, const char *dn, const char *reqdn,
- * int compare_dn_on_server)
- */
- LDAP_DECLARE(int) util_ldap_cache_comparedn(request_rec *r, util_ldap_connection_t *ldc,
- const char *url, const char *dn, const char *reqdn,
- int compare_dn_on_server);
-
- /**
- * A generic LDAP compare function
- * @param r The request record
- * @param ldc The LDAP connection being used.
- * @param url The URL of the LDAP connection - used for deciding which cache to use.
- * @param dn The DN of the object in which we do the compare.
- * @param attrib The attribute within the object we are comparing for.
- * @param value The value of the attribute we are trying to compare for.
- * @tip Use this function to determine whether an attribute/value pair exists within an
- * object. Typically this would be used to determine LDAP group membership.
- * @deffunc int util_ldap_cache_compare(request_rec *r, util_ldap_connection_t *ldc,
- * const char *url, const char *dn, const char *attrib, const char *value)
- */
- LDAP_DECLARE(int) util_ldap_cache_compare(request_rec *r, util_ldap_connection_t *ldc,
- const char *url, const char *dn, const char *attrib, const char *value);
-
- /**
- * Checks a username/password combination by binding to the LDAP server
- * @param r The request record
- * @param ldc The LDAP connection being used.
- * @param url The URL of the LDAP connection - used for deciding which cache to use.
- * @param basedn The Base DN to search for the user in.
- * @param scope LDAP scope of the search.
- * @param attrs LDAP attributes to return in search.
- * @param filter The user to search for in the form of an LDAP filter. This filter must return
- * exactly one user for the check to be successful.
- * @param bindpw The user password to bind as.
- * @param binddn The DN of the user will be returned in this variable.
- * @param retvals The values corresponding to the attributes requested in the attrs array.
- * @tip The filter supplied will be searched for. If a single entry is returned, an attempt
- * is made to bind as that user. If this bind succeeds, the user is not validated.
- * @deffunc int util_ldap_cache_checkuserid(request_rec *r, util_ldap_connection_t *ldc,
- * char *url, const char *basedn, int scope, char **attrs,
- * char *filter, char *bindpw, char **binddn, char ***retvals)
- */
- LDAP_DECLARE(int) util_ldap_cache_checkuserid(request_rec *r, util_ldap_connection_t *ldc,
- const char *url, const char *basedn, int scope, char **attrs,
- const char *filter, const char *bindpw, const char **binddn, const char ***retvals);
-
- /**
- * Checks if SSL support is available in mod_ldap
- * @deffunc int util_ldap_ssl_supported(request_rec *r)
- */
- LDAP_DECLARE(int) util_ldap_ssl_supported(request_rec *r);
-
- /* from apr_ldap_cache.c */
-
- /**
- * Init the LDAP cache
- * @param pool The pool to use to initialise the cache
- * @param reqsize The size of the shared memory segement to request. A size
- * of zero requests the max size possible from
- * apr_shmem_init()
- * @deffunc void util_ldap_cache_init(apr_pool_t *p)
- * @return The status code returned is the status code of the
- * apr_smmem_init() call. Regardless of the status, the cache
- * will be set up at least for in-process or in-thread operation.
- */
- apr_status_t util_ldap_cache_init(apr_pool_t *pool, apr_size_t reqsize);
-
- /**
- * Display formatted stats for cache
- * @param The pool to allocate the returned string from
- * @tip This function returns a string allocated from the provided pool that describes
- * various stats about the cache.
- * @deffunc char *util_ald_cache_display(apr_pool_t *pool)
- */
- char *util_ald_cache_display(apr_pool_t *pool);
-
-
- /* from apr_ldap_cache_mgr.c */
-
- /**
- * Display formatted stats for cache
- * @param The pool to allocate the returned string from
- * @tip This function returns a string allocated from the provided pool that describes
- * various stats about the cache.
- * @deffunc char *util_ald_cache_display(apr_pool_t *pool)
- */
- char *util_ald_cache_display(apr_pool_t *pool);
-
- #endif /* APU_HAS_LDAP */
- #endif /* UTIL_LDAP_H */
-