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Diffstat (limited to 'rubbos/app/httpd-2.0.64/include/util_ldap.h')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/include/util_ldap.h | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/include/util_ldap.h b/rubbos/app/httpd-2.0.64/include/util_ldap.h new file mode 100644 index 00000000..605f3b72 --- /dev/null +++ b/rubbos/app/httpd-2.0.64/include/util_ldap.h @@ -0,0 +1,318 @@ +/* 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. + */ + +#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" + +#if APR_HAS_SHARED_MEMORY +#include "apr_rmm.h" +#include "apr_shm.h" +#endif + +/* 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_global_mutex_t *util_ldap_cache_lock; + + apr_size_t cache_bytes; /* Size (in bytes) of shared memory cache */ + char *cache_file; /* filename for shm */ + 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; + +#if APR_HAS_SHARED_MEMORY + apr_shm_t *cache_shm; + apr_rmm_t *cache_rmm; +#endif + + /* cache ald */ + void *util_ldap_cache; + char *lock_file; /* filename for shm lock mutex */ + int connectionTimeout; + +} 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); + +/** + * Unbind a connection to an LDAP server + * @param ldc A structure containing the expanded details of the server + * that was connected. + * @tip This function unbinds the LDAP connection, and disconnects from + * the server. It is used during error conditions, to bring the LDAP + * connection back to a known state. + * @deffunc apr_status_t util_ldap_connection_unbind(util_ldap_connection_t *ldc) + */ +LDAP_DECLARE_NONSTD(apr_status_t) util_ldap_connection_unbind(void *param); + +/** + * Cleanup 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_cleanup(util_ldap_connection_t *ldc) + */ +LDAP_DECLARE_NONSTD(apr_status_t) util_ldap_connection_cleanup(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); + +/** + * Retrieves the LDAP DN of the user without the need to know user password + * @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 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. A single entry matching the search is returned. + * @deffunc int util_ldap_cache_getuserdn(request_rec *r, util_ldap_connection_t *ldc, + * char *url, const char *basedn, int scope, char **attrs, + * char *filter, char **binddn, char ***retvals) + */ +LDAP_DECLARE(int) util_ldap_cache_getuserdn(request_rec *r, util_ldap_connection_t *ldc, + const char *url, const char *basedn, int scope, char **attrs, + const char *filter, 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, util_ldap_state_t *st) + * @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, util_ldap_state_t *st); + +/* 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, util_ldap_state_t *st) + */ +char *util_ald_cache_display(request_rec *r, util_ldap_state_t *st); + +#endif /* APU_HAS_LDAP */ +#endif /* UTIL_LDAP_H */ |