path: root/ldap/servers/slapd/slapi-plugin.h

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 * This Program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; version 2 of the License.
 * 
 * This Program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA 02111-1307 USA.
 * 
 * In addition, as a special exception, Red Hat, Inc. gives You the additional
 * right to link the code of this Program with code not covered under the GNU
 * General Public License ("Non-GPL Code") and to distribute linked combinations
 * including the two, subject to the limitations in this paragraph. Non-GPL Code
 * permitted under this exception must only link to the code of this Program
 * through those well defined interfaces identified in the file named EXCEPTION
 * found in the source code files (the "Approved Interfaces"). The files of
 * Non-GPL Code may instantiate templates or use macros or inline functions from
 * the Approved Interfaces without causing the resulting work to be covered by
 * the GNU General Public License. Only Red Hat, Inc. may make changes or
 * additions to the list of Approved Interfaces. You must obey the GNU General
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 * in conjunction with the Program except the Non-GPL Code covered by this
 * exception. If you modify this file, you may extend this exception to your
 * version of the file, but you are not obligated to do so. If you do not wish to
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 * statement from your version and license this file solely under the GPL without
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 * 
 * 
 * Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
 * Copyright (C) 2005 Red Hat, Inc.
 * All rights reserved.
 * END COPYRIGHT BLOCK */

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif


/*! \file slapi-plugin.h
 *  \brief Public Directory Server plugin interface.
 *         
 *  The SLAPI plugin interface allows complex plugins to be created
 *  for Directory Server.
 */


#ifndef _SLAPIPLUGIN
#define _SLAPIPLUGIN

#ifdef __cplusplus
extern "C" {
#endif

#include "prtypes.h"
#include "ldap.h"
#include "prprf.h"
NSPR_API(PRUint32) PR_snprintf(char *out, PRUint32 outlen, const char *fmt, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 3, 4)));
#else
        ;
#endif
NSPR_API(char*) PR_smprintf(const char *fmt, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 1, 2)));
#else
        ;
#endif
NSPR_API(char*) PR_sprintf_append(char *last, const char *fmt, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 2, 3)));
#else
        ;
#endif
NSPR_API(PRUint32) PR_fprintf(struct PRFileDesc* fd, const char *fmt, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 2, 3)));
#else
        ;
#endif

/* NSPR uses the print macros a bit differently than ANSI C.  We
 * need to use ll for a 64-bit integer, even when a long is 64-bit.
 */
#define NSPRIu64	"llu"
#define NSPRI64	"ll"

/*
 * The slapi_attr_get_flags() routine returns a bitmap that contains one or
 * more of these values.
 *
 * Note that the flag values 0x0010, 0x0020, 0x4000, and 0x8000 are reserved.
 */
#define SLAPI_ATTR_FLAG_SINGLE		0x0001	/* single-valued attribute */
#define SLAPI_ATTR_FLAG_OPATTR		0x0002	/* operational attribute */
#define SLAPI_ATTR_FLAG_READONLY	0x0004	/* read from shipped config file */
#define SLAPI_ATTR_FLAG_STD_ATTR	SLAPI_ATTR_FLAG_READONLY /* alias for read only */
#define SLAPI_ATTR_FLAG_OBSOLETE	0x0040	/* an outdated definition */
#define SLAPI_ATTR_FLAG_COLLECTIVE	0x0080	/* collective (not supported) */
#define SLAPI_ATTR_FLAG_NOUSERMOD	0x0100	/* can't be modified over LDAP */
#define SLAPI_ATTR_FLAG_NORMALIZED	0x0200	/* the attr value is normalized */

/* operation flags */
#define SLAPI_OP_FLAG_INTERNAL		0x00020 /* An operation generated by the core server or a plugin. */
#define SLAPI_OP_FLAG_NEVER_CHAIN	0x00800 /* Do not chain the operation */	
#define SLAPI_OP_FLAG_NO_ACCESS_CHECK  	0x10000 /* Do not check for access control - bypass them */

#define SLAPI_OC_FLAG_REQUIRED	0x0001
#define SLAPI_OC_FLAG_ALLOWED	0x0002

/*
 * access control levels
 */
#define SLAPI_ACL_COMPARE     	0x01
#define SLAPI_ACL_SEARCH      	0x02
#define SLAPI_ACL_READ        	0x04
#define SLAPI_ACL_WRITE		0x08
#define SLAPI_ACL_DELETE	0x10
#define SLAPI_ACL_ADD		0x20
#define SLAPI_ACL_SELF		0x40
#define SLAPI_ACL_PROXY		0x80
#define SLAPI_ACL_ALL		0x7f


/*
 * filter types
 * openldap defines these, but not mozldap
 */
#ifndef LDAP_FILTER_AND
#define LDAP_FILTER_AND		0xa0L
#endif
#ifndef LDAP_FILTER_OR
#define LDAP_FILTER_OR		0xa1L
#endif
#ifndef LDAP_FILTER_NOT
#define LDAP_FILTER_NOT		0xa2L
#endif
#ifndef LDAP_FILTER_EQUALITY
#define LDAP_FILTER_EQUALITY	0xa3L
#endif
#ifndef LDAP_FILTER_SUBSTRINGS
#define LDAP_FILTER_SUBSTRINGS	0xa4L
#endif
#ifndef LDAP_FILTER_GE
#define LDAP_FILTER_GE		0xa5L
#endif
#ifndef LDAP_FILTER_LE
#define LDAP_FILTER_LE		0xa6L
#endif
#ifndef LDAP_FILTER_PRESENT
#define LDAP_FILTER_PRESENT	0x87L
#endif
#ifndef LDAP_FILTER_APPROX
#define LDAP_FILTER_APPROX	0xa8L
#endif

#ifndef LDAP_FILTER_EXTENDED
#ifdef LDAP_FILTER_EXT
#define LDAP_FILTER_EXTENDED	LDAP_FILTER_EXT
#else
#define LDAP_FILTER_EXTENDED 0xa9L
#endif
#endif

#ifndef LBER_END_OF_SEQORSET
#define LBER_END_OF_SEQORSET    ((ber_tag_t) -2) /* 0xfffffffeU */
#endif

#ifndef LDAP_CHANGETYPE_ADD
#ifdef LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_ADD
#define LDAP_CHANGETYPE_ADD LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_ADD
#else
#define LDAP_CHANGETYPE_ADD             1
#endif
#endif
#ifndef LDAP_CHANGETYPE_DELETE
#ifdef LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_DELETE
#define LDAP_CHANGETYPE_DELETE LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_DELETE
#else
#define LDAP_CHANGETYPE_DELETE          2
#endif
#endif
#ifndef LDAP_CHANGETYPE_MODIFY
#ifdef LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_MODIFY
#define LDAP_CHANGETYPE_MODIFY LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_MODIFY
#else
#define LDAP_CHANGETYPE_MODIFY          4
#endif
#endif
#ifndef LDAP_CHANGETYPE_MODDN
#ifdef LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_RENAME
#define LDAP_CHANGETYPE_MODDN LDAP_CONTROL_PERSSIT_ENTRY_CHANGE_RENAME
#else
#define LDAP_CHANGETYPE_MODDN           8
#endif
#endif
#ifndef LDAP_CHANGETYPE_ANY
#define LDAP_CHANGETYPE_ANY             (1|2|4|8)
#endif

#ifndef LDAP_CONTROL_PERSISTENTSEARCH
#ifdef LDAP_CONTROL_PERSIST_REQUEST
#define LDAP_CONTROL_PERSISTENTSEARCH LDAP_CONTROL_PERSIST_REQUEST
#else
#define LDAP_CONTROL_PERSISTENTSEARCH   "2.16.840.1.113730.3.4.3"
#endif
#endif
#ifndef LDAP_CONTROL_ENTRYCHANGE
#ifdef LDAP_CONTROL_PERSIST_ENTRY_CHANGE_NOTICE
#define LDAP_CONTROL_ENTRYCHANGE LDAP_CONTROL_PERSIST_ENTRY_CHANGE_NOTICE
#else
#define LDAP_CONTROL_ENTRYCHANGE        "2.16.840.1.113730.3.4.7"
#endif
#endif

#ifndef LDAP_CONTROL_PWEXPIRED
#define LDAP_CONTROL_PWEXPIRED          "2.16.840.1.113730.3.4.4"
#endif
#ifndef LDAP_CONTROL_PWEXPIRING
#define LDAP_CONTROL_PWEXPIRING         "2.16.840.1.113730.3.4.5"
#endif
#ifndef LDAP_X_CONTROL_PWPOLICY_REQUEST
#ifdef LDAP_CONTROL_PASSWORDPOLICYREQUEST
#define LDAP_X_CONTROL_PWPOLICY_REQUEST LDAP_CONTROL_PASSWORDPOLICYREQUEST
#else
#define LDAP_X_CONTROL_PWPOLICY_REQUEST "1.3.6.1.4.1.42.2.27.8.5.1"
#endif
#endif
#ifndef LDAP_X_CONTROL_PWPOLICY_RESPONSE
#ifdef LDAP_CONTROL_PASSWORDPOLICYRESPONSE
#define LDAP_X_CONTROL_PWPOLICY_RESPONSE LDAP_CONTROL_PASSWORDPOLICYRESPONSE
#else
#define LDAP_X_CONTROL_PWPOLICY_RESPONSE "1.3.6.1.4.1.42.2.27.8.5.1"
#endif
#endif

#ifndef LDAP_CONTROL_PROXYAUTH
#define LDAP_CONTROL_PROXYAUTH "2.16.840.1.113730.3.4.12" /* version 1 */
#endif
#ifndef LDAP_CONTROL_PROXIEDAUTH
#ifdef LDAP_CONTROL_PROXY_AUTHZ
#define LDAP_CONTROL_PROXIEDAUTH LDAP_CONTROL_PROXY_AUTHZ
#else
#define LDAP_CONTROL_PROXIEDAUTH        "2.16.840.1.113730.3.4.18" /* version 2 */
#endif
#endif

#ifndef LDAP_CONTROL_AUTH_REQUEST
#define LDAP_CONTROL_AUTH_REQUEST	"2.16.840.1.113730.3.4.16"
#endif

#ifndef LDAP_SORT_CONTROL_MISSING
#define LDAP_SORT_CONTROL_MISSING       0x3C    /* 60 (server side sort extn) */
#endif

#ifndef LDAP_INDEX_RANGE_ERROR
#define LDAP_INDEX_RANGE_ERROR          0x3D    /* 61 (VLV extn) */
#endif

/* openldap does not use this */
#ifndef LBER_OVERFLOW
#define LBER_OVERFLOW           ((ber_tag_t) -3) /* 0xfffffffdU */
#endif

/*
 * Sequential access types
 */
#define	SLAPI_SEQ_FIRST		1
#define	SLAPI_SEQ_LAST		2
#define	SLAPI_SEQ_PREV		3
#define	SLAPI_SEQ_NEXT		4


/*
 * return codes from a backend API call
 */
#define SLAPI_FAIL_GENERAL	-1
#define SLAPI_FAIL_DISKFULL	-2


/*
 * return codes used by BIND functions
 */
#define SLAPI_BIND_SUCCESS		0    /* front end will send result */
#define SLAPI_BIND_FAIL			2    /* back end should send result */
#define SLAPI_BIND_ANONYMOUS		3    /* front end will send result */


/* commonly used attributes names */
#define SLAPI_ATTR_UNIQUEID			"nsuniqueid"
#define SLAPI_ATTR_OBJECTCLASS			"objectclass"
#define SLAPI_ATTR_VALUE_TOMBSTONE		"nsTombstone"
#define SLAPI_ATTR_VALUE_PARENT_UNIQUEID	"nsParentUniqueID"
#define SLAPI_ATTR_NSCP_ENTRYDN 		"nscpEntryDN"
#define SLAPI_ATTR_ENTRYUSN 			"entryusn"
#define SLAPI_ATTR_ENTRYUSN_PREV 		"preventryusn"


/* opaque structures */
/**
 * Contains name-value pairs, known as parameter blocks, that you can get or set for
 * each LDAP operation.
 *
 * #Slapi_PBlock contains name-value pairs that you can use to retrieve information
 * from the server and set information to be used by the server.
 *
 * For most types of plug-in functions, the server passes in a #Slapi_PBlock
 * structure that typically includes data relevant to the operation being processed.
 * You can get the value of a parameter by calling the slapi_pblock_get() function.
 *
 * For example, when the plug-in function for an LDAP bind operation is called, the
 * server puts the DN and credentials in the #SLAPI_BIND_TARGET and
 * #SLAPI_BIND_CREDENTIALS parameters of the Slapi_PBlock structure. You can
 * call slapi_pblock_get() to get the DN and credentials of the client requesting
 * authentication.
 *
 * For plug-in initialization functions, you can use the #Slapi_PBlock structure to
 * pass information to the server, such as the description of your plug-in and the
 * names of your plug-in functions. You can set the value of a parameter by calling
 * the slapi_pblock_set() function.
 *
 * For example, in order to register a pre-operation bind plug-in function, you need to
 * call slapi_pblock_set() to set the version number, description, and name of the
 * plug-in function as the #SLAPI_PLUGIN_VERSION, #SLAPI_PLUGIN_DESCRIPTION,
 * and #SLAPI_PLUGIN_PRE_BIND_FN parameters.
 *
 * The available parameters that you can use depends on the type of plug-in function
 * you are writing.
 */
typedef struct slapi_pblock		Slapi_PBlock;

/**
 * Represents an entry in the directory.
 *
 * #Slapi_Entry is the data type for an opaque structure that represents an entry in
 * the directory. In certain cases, your server plug-in may need to work with an entry
 * in the directory.
 */
typedef struct slapi_entry		Slapi_Entry;

/**
 * Represents an attribute in an entry.
 *
 * #Slapi_Attr is the data type for an opaque structure that represents an attribute
 * in a directory entry. In certain cases, your server plug-in may need to work with
 * an entry’s attributes.
 */
typedef struct slapi_attr		Slapi_Attr;

/**
 * Represents the value of the attribute in a directory entry.
 *
 * #Slapi_Value is the data type for an opaque structure that represents the value of
 * an attribute in a directory entry.
 */
typedef struct slapi_value  		Slapi_Value;

/**
 * Represents a set of Slapi_Value (or a list of Slapi_Value).
 *
 * #Slapi_ValueSet is the data type for an opaque structure that represents set of
 * #Slapi_Value (or a list of #Slapi_Value).
 */
typedef struct slapi_value_set  	Slapi_ValueSet;

/**
 * Represents a search filter.
 *
 * #Slapi_Filter is the data type for an opaque structure that represents an search
 * filter.
 */
typedef struct slapi_filter		Slapi_Filter;

/**
 * Represents a backend operation in the server plug-in.
 *
 * #Slapi_Backend is the data type for an opaque structure that represents a backend
 * operation.
 */
typedef struct backend			Slapi_Backend;

/**
 * Represents the unique identifier of a directory entry.
 *
 * #Slapi_UniqueID is the data type for an opaque structure that represents the
 * unique identifier of a directory entry. All directory entries contain a unique
 * identifier. Unlike the distinguished name (DN), the unique identifier of an entry
 * never changes, providing a good way to refer unambiguously to an entry in a
 * distributed/replicated environment.
 */
typedef struct _guid_t			Slapi_UniqueID;

/**
 * Represents an operation pending from an LDAP client.
 *
 * #Slapi_Operation is the data type for an opaque structure that represents an
 * operation pending from an LDAP client.
 */
typedef struct op			Slapi_Operation;

/**
 * Represents a connection.
 *
 * #Slapi_Connection is the data type for an opaque structure that represents a
 * connection.
 */
typedef struct conn			Slapi_Connection;

/**
 * Represents a distinguished name in a directory entry.
 *
 * #Slapi_DN is the data type for an opaque structure that represents a distinguished
 * name in the server plug-in.
 */
typedef struct slapi_dn			Slapi_DN;

/**
 * Represents a relative distinguished name in a directory entry.
 *
 * #Slapi_RDN is the data type for an opaque structure that represents a relative
 * distinguished name in the server plug-in.
 */
typedef struct slapi_rdn		Slapi_RDN;

/**
 * Represents a single LDAP modification to a directory entry.
 *
 * #Slapi_Mod is the data type for an opaque structure that represents LDAPMod
 * modifications to an attribute in a directory entry.
 */
typedef struct slapi_mod		Slapi_Mod;

/**
 * Represents two or more LDAP modifications to a directory entry
 *
 * #Slapi_Mods is the data type for an opaque structure that represents LDAPMod
 * manipulations that can be made to a directory entry.
 */
typedef struct slapi_mods		Slapi_Mods;

/**
 * Represents a the component ID in a directory entry.
 *
 * #Slapi_ComponentId is the data type for an opaque structure that represents the
 * component ID in a directory entry.
 */
typedef struct slapi_componentid	Slapi_ComponentId;

/**
 * Represents an integral counter.
 *
 * Provides 64-bit integers with support for atomic operations, even on 32-bit
 * systems.  This lets your plug-in have global integers that can be updated by
 * multiple worker threads in a thread-safe manner.
 *
 * The #Slapi_Counter structure is a wrapper around the actual counter value
 */
typedef struct slapi_counter		Slapi_Counter;

/* Online tasks interface (to support import, export, etc) */
#define SLAPI_TASK_PUBLIC 1 /* tell old plugins that the task api is now public */

/**
 * An opaque structure that represents a task that has been initiated.
 *
 * Common Directory Server tasks, including importing, exporting, and indexing
 * databases, can be initiated through a special task configuration entry in
 * cn=tasks,cn=config. These task operations are managed using the #Slapi_Task
 * structure. 
 */
typedef struct slapi_task		Slapi_Task;

/**
 * Defines a callback used specifically by Slapi_Task structure cancel and
 * destructor functions.
 *
 * \param task The task that is being cancelled or destroyed.
 */
typedef void (*TaskCallbackFn)(Slapi_Task *task);

/*
 * The default thread stacksize for nspr21 is 64k (except on IRIX!  It's 32k!).
 * For OSF, we require a larger stacksize as actual storage allocation is
 * higher i.e pointers are allocated 8 bytes but lower 4 bytes are used.
 * The value 0 means use the default stacksize.
 *
 * larger stacksize (256KB) is needed on IRIX due to its 4KB BUFSIZ.
 * (@ pthread IRIX porting -- 01/11/99)
 *
 * Don't know why HP was defined as follows up until DS6.1x. HP BUFSIZ is 1KB
	#elif ( defined( hpux ))
	#define SLAPD_DEFAULT_THREAD_STACKSIZE  262144L
 */
#if ( defined( irix ))
#define SLAPD_DEFAULT_THREAD_STACKSIZE  262144L
#elif ( defined ( OSF1 ))
#define SLAPD_DEFAULT_THREAD_STACKSIZE  262144L
#elif ( defined ( AIX ))
#define SLAPD_DEFAULT_THREAD_STACKSIZE  262144L
/* All other platforms use the default stack size */
#else
#define SLAPD_DEFAULT_THREAD_STACKSIZE  0
#endif


/*---------------------------
 * parameter block routines
 *--------------------------*/
/**
 * Creates a new parameter block.
 *
 * \return This function returns a pointer to the new parameter block.
 * \warning The pblock pointer allocated with this function must always be freed by
 *          slapi_pblock_destroy(). The use of other memory deallocators (for example,
 *          <tt>free()</tt>) is not supported and may lead to crashes or memory leaks.
 * \see slapi_pblock_destroy()
 */
Slapi_PBlock *slapi_pblock_new( void ); /* allocate and initialize */

/**
 * Initializes an existing parameter block for re-use.
 *
 * \param pb The parameter block to initialize.
 * \warning The parameter block that you wish to free must have been created using
 *          slapi_pblock_new().  When you are finished with the parameter block, you
 *          must free it using the slapi_pblock_destroy() function.
 *
 * \warning Note that search results will not be freed from the parameter block by
 *          slapi_pblock_init(). You must free any internal  search results with the
 *          slapi_free_search_results_internal() function prior to calling 
 *          slapi_pblock_init(), otherwise the search results will be leaked.
 * \see slapi_pblock_new()
 * \see slapi_pblock_destroy()
 * \see slapi_free_search_results_internal()
 */
void slapi_pblock_init( Slapi_PBlock *pb ); /* clear out for re-use */

/**
 * Gets the value of a name-value pair from a parameter block.
 *
 * \param pb Parameter block.
 * \param arg ID of the name-value pair that you want to get.
 * \param value Pointer to the value retrieved from the parameter block.
 * \return \c 0 if successful.
 * \return \c -1 if an error occurs (for example, if an invalid ID is specified).
 * \todo Document valid values for the ID.
 * \warning The <tt>void *value</tt> argument should always be a pointer to the
 *          type of value you are retrieving:
 * \code
 *     int connid = 0;
 *     ...
 *     retval = slapi_pblock_get(pb, SLAPI_CONN_ID, &connid);
 * \endcode
 *
 * \warning #SLAPI_CONN_ID is an integer value, so you will pass in a pointer
 *          to/address of an integer to get the value. Similarly, for a
 *          <tt>char *</tt> value (a string), pass in a pointer to/address of the value.
 *          For example:
 * \code
 *     char *binddn = NULL;
 *     ...
 *     retval = slapi_pblock_get(pb, SLAPI_CONN_DN, &binddn);
 * \endcode
 *
 * \warning With certain compilers on some platforms, you may have to cast the
 *          value to <tt>(void *)</tt>.
 *
 * \warning We recommend that you set the value to \c 0 or \c NULL before calling
 *          slapi_pblock_get() to avoid reading from uninitialized memory, in
 *          case the call to slapi_pblock_get() fails.
 *
 * \warning In most instances, the caller should not free the returned value.
 *          The value will usually be freed internally or through the call to
 *          slapi_pblock_destroy(). The exception is if the value is explicitly
 *          set by the caller through slapi_pblock_set(). In this case, the caller
 *          is responsible for memory management. If the value is freed, it is
 *          strongly recommended that the free is followed by a call to
 *          slapi_pblock_set() with a value of \c NULL. For example:
 * \code
 *     char *someparam = NULL;
 *     ...
 *     someparam = slapi_ch_strdup(somestring);
 *     slapi_pblock_set(pb, SOME_PARAM, someparam);
 *     someparam = NULL;
 *     ...
 *     slapi_pblock_get(pb, SOME_PARAM, &someparam);
 *     slapi_pblock_set(pb, SOME_PARAM, NULL);
 *     slapi_ch_free_string(&someparam);
 *     ...
 * \endcode
 *
 * \warning Some internal functions may change the value passed in, so it is
 *          recommended to use slapi_pblock_get() to retrieve the value again,
 *          rather than relying on a potential dangling pointer. This is shown
 *          in the example above, which sets someparam to \c NULL after setting
 *          it in the pblock.
 *
 * \see slapi_pblock_destroy()
 * \see slapi_pblock_set()
 */
int slapi_pblock_get( Slapi_PBlock *pb, int arg, void *value );

/**
 * Sets the value of a name-value pair in a parameter block.
 *
 * \param pb Parameter block.
 * \param arg ID of the name-value pair that you want to get.
 * \param value Pointer to the value you want to set in the parameter block.
 * \return \c 0 if successful.
 * \return \c -1 if an error occurs (for example, if an invalid ID is specified).
 * \warning The value to be passed in must always be a pointer, even for integer
 *          arguments. For example, if you wanted to do a search with the
 *          \c ManageDSAIT control:
 * \code
 *     int managedsait = 1;
 *     ...
 *     slapi_pblock_set(pb, SLAPI_MANAGEDSAIT, &managedsait);
 * \endcode
 *
 * \warning A call similar to the following example will cause a crash:
 * \code
 *     slapi_pblock_set(pb, SLAPI_MANAGEDSAIT, 1);
 * \endcode
 *
 * \warning However, for values which are already pointers, (<tt>char * string</tt>,
 *          <tt>char **arrays</tt>, <tt>#Slapi_Backend *</tt>, etc.), you can pass
 *          in the value directly. For example:
 * \code
 *     char *target_dn = slapi_ch_strdup(some_dn);
 *     slapi_pblock_set(pb, SLAPI_TARGET_DN, target_dn);
 * \endcode
 *
 * \warning or
 * \code
 *     slapi_pblock_set(pb, SLAPI_TARGET_DN, NULL);
 * \endcode
 *
 * \warning With some compilers, you will have to cast the value argument to
 *          <tt>(void *)</tt>. If the caller allocates the memory passed in, the
 *          caller is responsible for freeing that memory. Also, it is recommended
 *          to use slapi_pblock_get() to retrieve the value to free, rather than
 *          relying on a potentially dangling pointer. See the slapi_pblock_get()
 *          example for more details.
 *
 * \warning When setting parameters to register a plug-in, the plug-in type must
 *          always be set first, since many of the plug-in parameters depend on
 *          the type. For example, set the #SLAPI_PLUGIN_TYPE to extended
 *          operation before setting the list of extended operation OIDs for
 *          the plug-in.
 *
 * \see slapi_pblock_get()
 */ 
int slapi_pblock_set( Slapi_PBlock *pb, int arg, void *value );

/**
 * Frees the specified parameter block from memory.
 *
 * \param pb Parameter block you want to free.
 * \warning The parameter block that you wish to free must have been created
 *          using slapi_pblock_new(). Use of this function with parameter
 *          blocks allocated on the stack (for example, <tt>#Slapi_PBlock pb;</tt>)
 *          or using another memory allocator is not supported and may lead to
 *          memory errors and memory leaks. For example:
 * \code
 *     Slapi_PBlock *pb = malloc(sizeof(Slapi_PBlock));
 * \endcode
 *
 * \warning After calling this function, you should set the parameter block
 *          pointer to \c NULL to avoid reusing freed memory in your function
 *          context, as in the following:
 * \code
 *     slapi_pblock_destroy(pb);
 *     pb =NULL;
 * \endcode
 *
 * \warning If you reuse the pointer in this way, it makes it easier to
 *          identify a Segmentation Fault, rather than using some difficult
 *          method to detect memory leaks or other abnormal behavior.
 *
 * \warning It is safe to call this function with a \c NULL pointer. For
 *          example:
 * \code
 *     Slapi_PBlock *pb = NULL;
 *     slapi_pblock_destroy(pb);
 * \endcode
 *
 * \warning This saves the trouble of checking for \c NULL before calling
 *          slapi_pblock_destroy().
 *
 * \see slapi_pblock_new()
 */
void slapi_pblock_destroy( Slapi_PBlock *pb );


/*----------------
 * entry routines
 *---------------*/
/**
 * Converts an LDIF description of a directory entry (a string value) into
 * an entry of the #Slapi_Entry type.
 *
 * A directory entry can be described by a string in LDIF format. Calling
 * the slapi_str2entry() function converts a string description in this
 * format to a #Slapi_Entry structure, which you can pass to other API
 * functions.
 *
 * \param s Description of an entry that you want to convert to a #Slapi_Entry.
 * \param flags One or more flags specifying how the entry should be generated.
 *        The valid values of the \c flags argument are:
 *        \arg #SLAPI_STR2ENTRY_REMOVEDUPVALS
 *        \arg #SLAPI_STR2ENTRY_ADDRDNVALS
 *        \arg #SLAPI_STR2ENTRY_BIGENTRY
 *        \arg #SLAPI_STR2ENTRY_TOMBSTONE_CHECK
 *        \arg #SLAPI_STR2ENTRY_IGNORE_STATE
 *        \arg #SLAPI_STR2ENTRY_INCLUDE_VERSION_STR
 *        \arg #SLAPI_STR2ENTRY_EXPAND_OBJECTCLASSES
 *        \arg #SLAPI_STR2ENTRY_NOT_WELL_FORMED_LDIF
 *        \arg #SLAPI_STR2ENTRY_NO_SCHEMA_LOCK
 * \return A pointer to the #Slapi_Entry structure representing the entry.
 * \return \c NULL if the string cannot be converted; for example, if no DN is
 *         specified in the string.
 * \warning This function modifies the string argument s. If you still need to
 *          use this string value, you should make a copy of this string before
 *          calling slapi_str2entry().
 *
 * \warning When you are done working with the entry, you should call the
 *          slapi_entry_free() function.
 *
 * \note To convert an entry to a string description, call the slapi_entry2str()
 *       function.
 *
 * \see slapi_entry_free()
 * \see slapi_entry2str()
 */
Slapi_Entry *slapi_str2entry( char *s, int flags );


/*-----------------------------
 * Flags for slapi_str2entry()
 *----------------------------*/
/**
 * Removes any duplicate values in the attributes of the entry.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_REMOVEDUPVALS		1

/**
 * Adds the relative distinguished name (RDN) components (for example,
 * \c uid=bjensen) as attributes of the entry.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_ADDRDNVALS		2

/**
 * Provide a hint that the entry is large. This enables some optimizations
 * related to large entries.
 *
 *  \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_BIGENTRY		4

/**
 * Check to see if the entry is a tombstone. If so, set the tombstone flag
 * (#SLAPI_ENTRY_FLAG_TOMBSTONE).
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_TOMBSTONE_CHECK		8

/**
 * Ignore entry state information if present.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_IGNORE_STATE		16

/**
 * Return entries that have a <tt>version: 1</tt> line as part of the LDIF
 * representation.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_INCLUDE_VERSION_STR	32

/**
 * Add any missing ancestor values based on the object class hierarchy.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_EXPAND_OBJECTCLASSES	64

/**
 * Inform slapi_str2entry() that the LDIF input is not well formed.
 *
 * Well formed LDIF has no duplicate attribute values, already has the RDN
 * as an attribute of the entry, and has all values for a given attribute
 * type listed contiguously.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_NOT_WELL_FORMED_LDIF 128

/**
 * Don't acquire the schema lock.
 *
 * You should use this flag if you are sure that the lock is already held,
 * or if the server has not started it's threads yet during startup.
 *
 * \see slapi_str2entry()
 */
#define SLAPI_STR2ENTRY_NO_SCHEMA_LOCK       256

/**
 * Generates a description of an entry as an LDIF string.
 *
 * This function behaves much like slapi_entry2str(); however, you can specify
 * output options with this function.
 *
 * This function generates an LDIF string value conforming to the following syntax:
 * \code
 *     dn: dn\n
 *     [attr: value\n]*
 * \endcode
 *
 * For example:
 * \code
 *     dn: uid=jdoe, ou=People, dc=example,dc=com
 *     cn: Jane Doe
 *     sn: Doe
 *     ...
 * \endcode
 *
 * To convert an entry described in LDIF string format to an LDAP entry using
 * the #Slapi_Entry data type, call the slapi_str2entry() function.
 *
 * \param e Entry that you want to convert into an LDIF string.
 * \param len Length of the LDIF string returned by this function.
 * \param options An option set that specifies how you want the string
 *        converted. You can \c OR together any of the following options
 *        when you call this function:
 *        \arg #SLAPI_DUMP_STATEINFO
 *        \arg #SLAPI_DUMP_UNIQUEID
 *        \arg #SLAPI_DUMP_NOOPATTRS
 *        \arg #SLAPI_DUMP_NOWRAP
 *        \arg #SLAPI_DUMP_MINIMAL_ENCODING
 * \return The LDIF string representation of the entry you specify.
 * \return \c NULL if an error occurs.
 * \warning When you no longer need to use the string, you should free it
 *          from memory by calling the slapi_ch_free_string() function.
 *
 * \see slapi_entry2str()
 * \see slapi_str2entry()
 */
char *slapi_entry2str_with_options( Slapi_Entry *e, int *len, int options );


/*---------------------------------------------
 * Options for slapi_entry2str_with_options()
 *--------------------------------------------*/
/**
 * Output entry with replication state info.
 *
 * This allows access to the internal data used by multi-master replication.
 *
 * \see slapi_entry2str_with_options()
 */
#define SLAPI_DUMP_STATEINFO		1	/* replication state */

/**
 * Output entry with uniqueid.
 *
 * This option is used when creating an LDIF file to be used to initialize
 * a replica. Each entry will contain the nsuniqueID operational attribute.
 *
 * \see slapi_entry2str_with_options()
 */
#define SLAPI_DUMP_UNIQUEID		2	/* unique ID */

/**
 * Output entry without operational attributes.
 *
 * By default, certain operational attributes (such as \c creatorsName,
 * \c modifiersName, \c createTimestamp, \c modifyTimestamp) may be
 * included in the output. With this option, no operational attributes
 * will be included.
 *
 * \see slapi_entry2str_with_options()
 */
#define SLAPI_DUMP_NOOPATTRS		4	/* suppress operational attrs */

/**
 * Output entry without LDIF line wrapping.
 *
 * By default, lines will be wrapped as defined in the LDIF specification.
 * With this option, line wrapping is disabled.
 *
 * \see slapi_entry2str_with_options()
 */
#define SLAPI_DUMP_NOWRAP		8	/* no line breaks */

/**
 * Output entry with less base64 encoding.
 *
 * Uses as little base64 encoding as possible in the output.
 *
 * \see slapi_entry2str_with_options()
 */
#define SLAPI_DUMP_MINIMAL_ENCODING	16	/* use less base64 encoding */

/**
 * Generates an LDIF string description of an LDAP entry.
 *
 * This function generates an LDIF string value conforming to the following syntax:
 * \code
 *     dn: dn\n
 *     [attr: value\n]*
 * \endcode
 *
 * For example:
 * \code
 *     dn: uid=jdoe, ou=People, dc=example,dc=com
 *     cn: Jane Doe
 *     sn: Doe
 *     ...
 * \endcode
 *
 * To convert an entry described in LDIF string format to an LDAP entry using
 * the #Slapi_Entry data type, call the slapi_str2entry() function.
 *
 * \param e Entry that you want to convert into an LDIF string.
 * \param len Length of the LDIF string returned by this function.
 * \return The LDIF string representation of the entry you specify.
 * \return \c NULL if an error occurs.
 * \warning When you no longer need to use the string, you should free it
 *          from memory by calling the slapi_ch_free_string() function.
 *
 * \see slapi_entry2str_with_options()
 * \see slapi_str2entry()
 */
char *slapi_entry2str( Slapi_Entry *e, int *len );

/**
 * Allocates memory for a new entry of the data type #Slapi_Entry.
 *
 * This function returns an empty #Slapi_Entry structure. You can call other
 * front-end functions to set the DN and attributes of this entry.
 *
 * When you are no longer using the entry, you should free it from memory by
 * calling the slapi_entry_free() function.
 *
 * \return This function returns a pointer to the newly allocated entry of the
 *         data type #Slapi_Entry. If space cannot be allocated, e.g., no more
 *         virtual memory exists, the \c ns-slapd program terminates.
 * \warning When you no longer use the entry, free it from memory by calling the
 *          slapi_entry_free() function.
 *
 * \see slapi_entry_dup()
 * \see slapi_entry_free()
 */
Slapi_Entry *slapi_entry_alloc(void);

/**
 * Initializes the values of an entry with the DN and attribute value pairs you
 * supply.
 *
 * This function initializes the attributes and the corresponding attribute values
 * of an entry. Also, during the course of processing, the unique ID of the entry
 * is set to \c NULL, and the flag value is set to \c 0.
 *
 * Use this function to initialize a #Slapi_Entry pointer.
 *
 * \param e The entry you want to initialize.
 * \param dn The DN of the entry you are initializing.
 * \param a Initialization list of attribute value pairs, supplied as a
 *          #Slapi_Attr data value.
 * \warning This function should always be used after slapi_entry_alloc() and
 *          never otherwise. For example:
 * \code
 *     Slapi_Entry *e = slapi_entry_alloc();
 *     slapi_entry_init(e, NULL, NULL);
 * \endcode
 *
 * \warning To set the DN in the entry:
 * \code
 *     slapi_sdn_set_dn_passin(slapi_entry_get_sdn(e), dn);
 * \endcode
 *
 * \warning In this case, the dn argument is not copied but is consumed by the
 *          function. To copy the argument, see the following example:
 * \code
 *     char *dn = slapi_ch_strdup(some_dn);
 *     Slapi_Entry *e = slapi_entry_alloc();
 *     slapi_entry_init(e, dn, NULL);
 * \endcode
 *
 * \warning The \c dn argument is not freed in this context but will eventually
 * be freed when slapi_entry_free() is called.
 *
 * \see slapi_entry_free()
 * \see slapi_entry_alloc()
 */
void slapi_entry_init(Slapi_Entry *e, char *dn, Slapi_Attr *a);

/**
 * Frees an entry, its DN, and its attributes from memory.
 *
 * Call this function to free an entry that you have allocated by using the
 * slapi_entry_alloc() function or the slapi_entry_dup() function.
 *
 * \param e Entry that you want to free.  If \c NULL, no action occurs.
 * \warning To free entries, always use this function instead of using
 *          slapi_ch_free() or free().
 *
 * \see slapi_entry_alloc()
 * \see slapi_entry_dup()
 */
void slapi_entry_free( Slapi_Entry *e );

/**
 * Makes a copy of an entry, its DN, and its attributes.
 *
 * This function returns a copy of an existing #Slapi_Entry structure. You can 
 * call other front-end functions to change the DN and attributes of this entry.
 *
 * \param e Entry that you want to copy.
 * \return This function returns the new copy of the entry. If the structure
 *         cannot be duplicated, for example, if no more virtual memory exists,
 *         the \c ns-slapd program terminates.
 * \warning When you are no longer using the entry, free it from memory by
 *          calling the slapi_entry_free() function.
 * \see slapi_entry_alloc()
 * \see slapi_entry_free()
 */
Slapi_Entry *slapi_entry_dup( const Slapi_Entry *e );

/**
 * Gets the distinguished name (DN) of the specified entry.
 *
 * \param e Entry from which you want to get the DN.
 * \return This function returns the DN of the entry. This returns a pointer
 *         to the actual DN in the entry, not a copy of the DN. You should not
 *         free the DN unless you plan to replace it by calling slapi_entry_set_dn().
 * \warning Use slapi_ch_free_string() if you are replacing the DN with
 *          slapi_entry_set_dn().
 * \see slapi_ch_free_string()
 * \see slapi_entry_set_dn()
 */
char *slapi_entry_get_dn( Slapi_Entry *e );

/**
 * Returns the normalized DN from the entry that you specify.
 *
 * \param e Entry from which you want to obtain the normalized DN.
 * \return This function returns the normalized DN from the entry that you
 *         specify. If the entry you specify does not contain a normalized DN,
 *         one is created through the processing of this function.
 * \warning Never free the returned value.
 * \see slapi_entry_get_dn()
 */
char *slapi_entry_get_ndn( Slapi_Entry *e );

/**
 * Returns as a \c const the value of the #Slapi_DN object from the entry
 * that you specify.
 *
 * \param e Entry from which you want to get the #Slapi_DN object.
 * \return Returns as a \c const the #Slapi_DN object from the entry that you
 *         specify. 
 * \warning Never free the returned value.  If you need a copy, use
 *          slapi_sdn_dup().
 * \see slapi_sdn_dup()
 * \see slapi_entry_get_sdn()
 */
const Slapi_DN *slapi_entry_get_sdn_const( const Slapi_Entry *e );

/**
 * Returns the #Slapi_DN object from the entry that you specify.
 *
 * \param e Entry from which you want to get the #Slapi_DN object.
 * \return Returns the #Slapi_DN object from the entry that you specify.
 * \warning Never free the returned value.  If you need a copy, use
 *          slapi_sdn_dup().
 * \see slapi_entry_get_sdn_const()
 * \see slapi_sdn_dup()
 */
Slapi_DN *slapi_entry_get_sdn( Slapi_Entry *e );

/**
 * Returns as a \c const the DN value of the entry that you specify.
 *
 * \param e Entry from which you want to get the DN as a constant.
 * \return This function returns one of the following values:
 *         \arg The DN of the entry that you specify. The DN is returned
 *              as a const; you are not able to modify the DN value.
 *         \arg The NDN value of Slapi_DN if the DN of the Slapi_DN object is NULL.
 * \warning Never free the returned value.
 * \see slapi_entry_set_sdn()
 */
const char *slapi_entry_get_dn_const( const Slapi_Entry *e );

/**
 * Sets the distinguished name (DN) of an entry.
 *
 * This function sets the DN pointer in the specified entry to the DN that you supply.
 *
 * \param e Entry to which you want to assign the DN.
 * \param dn Distinguished name you want assigned to the entry.
 * \warning The dn will be freed eventually when slapi_entry_free() is called.
 * \warning A copy of dn should be passed. For example:
 * \code
 *     char *dn = slapi_ch_strdup(some_dn):
 *     slapi_entry_set_dn(e, dn);
 * \endcode
 *
 * \warning The old dn will be freed as a result of this call. Do not pass in
 *          a \c NULL value.
 * \see slapi_entry_free()
 * \see slapi_entry_get_dn()
 */
void slapi_entry_set_dn( Slapi_Entry *e, char *dn );

/**
 * Sets the Slapi_DN value in an entry.
 *
 * This function sets the value for the #Slapi_DN object in the entry you specify.
 *
 * \param e Entry to which you want to set the value of the #Slapi_DN.
 * \param sdn The specified #Slapi_DN value that you want to set.
 * \warning This function makes a copy of the \c sdn parameter.
 * \see slapi_entry_get_sdn()
 */
void slapi_entry_set_sdn( Slapi_Entry *e, const Slapi_DN *sdn );

/**
 * Determines if an entry contains the specified attribute.
 *
 * If the entry contains the attribute, the function returns a pointer to
 * the attribute.
 *
 * \param e Entry that you want to check.
 * \param type Name of the attribute that you want to check.
 * \param attr Pointer to the attribute, if the attribute is found in the
 *        entry.
 * \return \c 0 if the entry contains the specified attribute.
 * \return \c -1 if the entry does not contain the specified attribute.
 * \warning Do not free the returned \c attr. It is a pointer to the internal
 *          entry data structure. It is usually wise to make a copy of the
 *          returned attribute, using slapi_attr_dup(), to avoid dangling pointers
 *          if the entry is freed while the pointer to attr is still being used.
 * \see slapi_attr_dup()
 */
int slapi_entry_attr_find( const Slapi_Entry *e, const char *type, Slapi_Attr **attr );

/**
 * Finds the first attribute in an entry.
 *
 * If you want to iterate through the attributes in an entry, use this function
 * in conjunction with the slapi_entry_next_attr() function.
 *
 * \param e Entry from which you want to get the attribute.
 * \param attr Pointer to the first attribute in the entry.
 * \return Returns 0 when successful; any other value returned signals failure.
 * \warning Do not free the returned \c attr. This is a pointer into the
 *          internal entry data structure. If you need a copy, use slapi_attr_dup().
 * \see slapi_entry_next_attr()
 * \see slapi_attr_dup()
 */
int slapi_entry_first_attr( const Slapi_Entry *e, Slapi_Attr **attr );

/**
 * Finds the next attribute after \c prevattr in an entry.
 *
 * To iterate through the attributes in an entry, use this function in conjunction
 * with the slapi_entry_first_attr() function.
 *
 * \param e Entry from which you want to get the attribute.
 * \param prevattr Previous attribute in the entry.
 * \param attr Pointer to the next attribute after \c prevattr in the entry.
 * \return \c 0 if successful.
 * \return \c -1 if \c prevattr was the last attribute in the entry.
 * \warning Do not free the returned \c attr. This is a pointer into the
 *          internal entry data structure. If you need a copy, use slapi_attr_dup().
 * \see slapi_entry_first_attr()
 * \see slapi_entry_dup()
 */
int slapi_entry_next_attr( const Slapi_Entry *e, Slapi_Attr *prevattr, Slapi_Attr **attr );

/**
 * Gets the unique ID value of the entry.
 *
 * \param e Entry from which you want to obtain the unique ID.
 * \return This function returns the unique ID value of the entry specified.
 * \warning Never free this value. If you need a copy, use slapi_ch_strdup().
 * \see slapi_entry_set_uniqueid()
 * \see slapi_ch_strdup()
 */
const char *slapi_entry_get_uniqueid( const Slapi_Entry *e );

/**
 * Replaces the unique ID value of an entry with the unique ID value that you
 * supply.
 *
 * This function replaces the unique ID value of the entry with the \c uniqueid
 * value that you specify. In addition, the function adds #SLAPI_ATTR_UNIQUEID to
 * the attribute list and gives it the unique ID value supplied. If the entry
 * already contains a #SLAPI_ATTR_UNIQUEID attribute, its value is updated with
 * the new value supplied.
 *
 * \param e Entry for which you want to generate a unique ID.
 * \param uniqueid The unique ID value that you want to assign to the entry.
 * \warning Do not free the \c uniqueid after calling this function. The value
 *          will eventually be freed when slapi_entry_free() is called.
 *
 * \warning You should pass in a copy of the value because this function will
 *          consume the value passed in. For example:
 * \code
 *     char *uniqueid = slapi_ch_strdup(some_uniqueid);
 *     slapi_entry_set_uniqueid(e, uniqueid);
 * \endcode
 *
 * \warning Do not pass in a \c NULL for \c uniqueid.
 * \see slapi_entry_get_uniqueid()
 * \see slapi_entry_free()
 */
void slapi_entry_set_uniqueid( Slapi_Entry *e, char *uniqueid );

/**
 * Determines whether the specified entry complies with the schema for its object
 * class.
 *
 * \param pb Parmeter block.
 * \param e Entry that you want to check.
 * \return \c 0 if the entry complies with the schema or if schema checking is
 *         turned off. The function also returns \c 0 if the entry has additional
 *         attributes not allowed by the schema and has the object class
 *         \c extensibleObject.
 * \return \c 1 if the entry is missing the \c objectclass attribute, if it is missing
 *         any required attributes, if it has any attributes not allowed by the schema
 *         but does not have the object class \c extensibleObject, or if the entry has
 *         multiple values for a single-valued attribute.
 * \warning The \c pb argument can be \c NULL. It is only used to get the
 *          #SLAPI_IS_REPLICATED_OPERATION flag. If that flag is present, no schema
 *          checking is done.
 */
int slapi_entry_schema_check( Slapi_PBlock *pb, Slapi_Entry *e );

/**
 * Determines whether the specified entry complies with the syntax rules imposed
 * by it's attribute types.
 *
 * \param pb Parameter block.
 * \param e Entry that you want to check.
 * \param override Flag to override the server configuration and force syntax checking
 *        to be performed.
 * \return \c 0 if the entry complies with the syntax rules or if syntax checking
 *         is disabled.
 * \return \c 1 if the entry has any attribute values that violate the syntax rules
 *         imposed by the associated attribute type.  If the \c pb parameter was
 *         passed in, an error message describing the syntax violations will be
 *         set in the #SLAPI_PB_RESULT_TEXT paramter.
 * \warning The \c pb parameter can be \c NULL.  It is used to store an error
 *         message with details of any syntax violations.  The \c pb paramter
 *         is also used to check if the #SLAPI_IS_REPLICATED_OPERATION flag is
 *         set.   If that flag is present, no syntax checking is performed.
 */
int slapi_entry_syntax_check( Slapi_PBlock *pb, Slapi_Entry *e, int override );

/**
 * Determines if any values being added to an entry violate the syntax rules
 * imposed by the associated attribute type.
 *
 * \param pb Parameter block.
 * \param mods Array of mods that you want to check.
 * \param override Flag to override the server configuration and force syntax checking
 *        to be performed.
 * \return \c 0 if the mods comply with the syntax rules or if syntax checking
 *         is disabled.
 * \return \c 1 if the mods are adding any new attribute values that violate the
 *         syntax rules imposed by the associated attribute type.  If the \c pb
 *         parameter was passed in, an error message describing the syntax violations
 *         will be set in the #SLAPI_PB_RESULT_TEXT paramter.
 * \warning The \c pb parameter can be \c NULL.  It is used to store an error
 *         message with details of any syntax violations.  The \c pb paramter
 *         is also used to check if the #SLAPI_IS_REPLICATED_OPERATION flag is
 *         set.   If that flag is present, no syntax checking is performed.
 */
int slapi_mods_syntax_check( Slapi_PBlock *pb, LDAPMod **mods, int override );

/**
 * Determines whether the values in an entry’s relative distinguished name (RDN)
 * are also present as attribute values.
 *
 * For example, if the entry’s RDN is <tt>cn=Barbara Jensen</tt>, the function determines
 * if the entry has the \c cn attribute with the value <tt>Barbara Jensen</tt>.
 *
 * \param e Entry that you want to check for RDN values.
 * \return \c 1 if the values in the RDN are present in the attributes of the entry.
 * \return \c 0 if the values are not present.
 */
int slapi_entry_rdn_values_present( const Slapi_Entry *e );

/**
 * Adds the components in an entry’s relative distinguished name (RDN) to the entry
 * as attribute values.
 *
 * For example, if the entry’s RDN is <tt>uid=bjensen</tt>, the function adds
 * <tt>uid=bjensen</tt> to the entry as an attribute value.
 *
 * \param e Entry to which you want to add the RDN attributes.
 * \return \c LDAP_SUCCESS if the values were successfully added to the entry. The
 *         function also returns \c LDAP_SUCCESS if the entry is \c NULL, if the
 *         entry’s DN is \c NULL, or if the entry’s RDN is \c NULL.
 * \return \c LDAP_INVALID_DN_SYNTAX if the DN of the entry cannot be parsed.
 * \warning Free the entry from memory by using the slapi_entry_free() function, if the
 *          entry was allocated by the user.
 * \see slapi_entry_free()
 */
int slapi_entry_add_rdn_values( Slapi_Entry *e );

/**
 * Deletes an attribute (and all its associated values) from an entry.
 *
 * \param e Entry from which you want to delete the attribute.
 * \param type Attribute type that you want to delete.
 * \return \c 0 if successful.
 * \return \c 1 if the specified attribute is not part of the entry.
 * \return \c -1 if an error occurred.
 */
int slapi_entry_attr_delete( Slapi_Entry *e, const char *type );

/**
 * Gets the values of a multi-valued attribute of an entry.
 *
 * This function is very similar to slapi_entry_attr_get_charptr(), except that it
 * returns a <tt>char **</tt> array for multi-valued attributes. The array and all
 * values are copies. Even if the attribute values are not strings, they will still
 * be \c NULL terminated so that they can be used safely in a string context. If there
 * are no values, \c NULL will be returned. Because the array is \c NULL terminated,
 * the usage should be similar to the sample shown below:
 * 
 * \code
 *     char **ary = slapi_entry_attr_get_charray(e, someattr);
 *     int ii;
 *     for (ii = 0; ary && ary[ii]; ++ii) {
 *        char *strval = ary[ii];
 *        ...
 *     }
 *     slapi_ch_array_free(ary);
 * \endcode
 *
 * \param e Entry from which you want to get the values.
 * \param type Attribute type from which you want to get the values.
 * \return A copy of all the values of the attribute.
 * \return \c NULL if the entry does not contain the attribute or if the attribute
 *         has no values.
 * \warning When you are done working with the values, free them from memory by calling
 *          the slapi_ch_array_free() function.
 * \see slapi_entry_attr_get_charptr()
 */
char **slapi_entry_attr_get_charray(const Slapi_Entry* e, const char *type);

/**
 * Gets the first value of an attribute of an entry as a string.
 *
 * \param e Entry from which you want to get the string value.
 * \param type Attribute type from which you want to get the value.
 * \return A copy of the first value in the attribute.
 * \return \c NULL if the entry does not contain the attribute.
 * \warning When you are done working with this value, free it from memory by calling the
 *          slapi_ch_free_string() function.
 * \see slapi_entry_attr_get_charray()
 */
char *slapi_entry_attr_get_charptr(const Slapi_Entry* e, const char *type);

/**
 * Gets the first value of an attribute in an entry as an integer.
 *
 * \param e Entry from which you want to get the integer value.
 * \param type Attribute type from which you want to get the value.
 * \return The first value of the attribute converted to an integer.
 * \return \c 0 if the entry does not contain the attribute.
 */
int slapi_entry_attr_get_int(const Slapi_Entry* e, const char *type);

/**
 * Gets the first value of an attribute in an entry as an unsigned integer data type.
 *
 * \param e Entry from which you want to get the integer value.
 * \param type Attribute type from which you want to get the value.
 * \return The first value of the attribute converted to an unsigned integer.
 * \return \c 0 if the entry does not contain the attribute.
 */
unsigned int slapi_entry_attr_get_uint(const Slapi_Entry* e, const char *type);

/**
 * Gets the first value of an attribute in an entry as a long data type.
 *
 * \param e Entry from which you want to get the long value.
 * \param type Attribute type from which you want to get the value.
 * \return The first value of the attribute converted to a \c long type.
 * \return \c 0 if the entry does not contain the attribute.
 */
long slapi_entry_attr_get_long( const Slapi_Entry* e, const char *type);

/**
 * Gets the first value of an attribute in an entry as an unsigned long
 * data type.
 *
 * \param e Entry from which you want to get the unsigned long value.
 * \param type Attribute type from which you want to get the value.
 * \return The first value of the attribute converted to an <tt>
 *         unsigned long</tt>.
 * \return \c 0 if the entry does not contain the attribute.
 */
unsigned long slapi_entry_attr_get_ulong( const Slapi_Entry* e, const char *type);

/**
 *  Gets the first value of an attribute in an entry as a long long data type.
 *
 *  \param e Entry from which you want to get the long long value.
 *  \param type Attribute type from which you want to get the value.
 *  \return The first value of the attribute converted to a <tt>long long</tt>.
 *  \return  \c 0 if the entry does not contain the attribute.
 */
long long slapi_entry_attr_get_longlong( const Slapi_Entry* e, const char *type);

/**
 * Gets the first value of an attribute in an entry as an unsigned
 * long long data type.
 *
 * \param e Entry from which you want to get the unsigned long long value.
 * \param type Attribute type from which you want to get the value.
 * \return The first value of the attribute converted to an <tt>unsigned
 *         long long</tt>.
 * \return  \c 0 if the entry does not contain the attribute.
 */
unsigned long long slapi_entry_attr_get_ulonglong( const Slapi_Entry* e, const char *type);

/**
 * Gets the value of a given attribute of a given entry as a boolean value.
 *
 * Comparisons are case-insensitive (\c TRUE, \c trUe, and \c true are all the
 * same), and unique substrings can be matched (\c t and \c tr will be interpreted
 * as \c true). If the attribute value is a number, then non-zero numbers are
 * interpreted as \c true, and \c 0 is interpreted as \c false.
 *
 * \param e Entry from which you want to get the boolean value.
 * \param type Attribute type from which you want to get the value.
 * \return \c PR_TRUE | \c PR_FALSE
 */
PRBool slapi_entry_attr_get_bool( const Slapi_Entry* e, const char *type);

/**
 * Replaces the value or values of an attribute in an entry with a specified string
 * value.
 *
 * \param e Entry in which you want to set the value.
 * \param type Attribute type in which you want to set the value.
 * \param value String value that you want to assign to the attribute.
 * \warning This function makes a copy of the parameter \c value. The \c value
 *          parameter can be \c NULL; if so, this function is roughly equivalent
 *          to slapi_entry_attr_delete().
 * \see slapi_entry_attr_delete()
 */
void slapi_entry_attr_set_charptr(Slapi_Entry* e, const char *type, const char *value);

/**
 * Replaces the value or values of an attribute in an entry with a specified integer
 * data value.
 *
 * This function will replace the value or values of an attribute with the
 * integer value that you specify. If the attribute does not exist, it is created
 * with the integer value that you specify.
 *
 * \param e Entry in which you want to set the value.
 * \param type Attribute type in which you want to set the value.
 * \param l Integer value that you want to assign to the attribute.
 */
void slapi_entry_attr_set_int( Slapi_Entry* e, const char *type, int l);

/**
 * Replaces the value or values of an attribute in an entry with a specified
 * unsigned integer data type value.
 *
 * This function will replace the value or values of an attribute with the
 * unsigned integer value that you specify. If the attribute does not exist,
 * it is created with the unsigned integer value you specify.
 *
 * \param e Entry in which you want to set the value.
 * \param type Attribute type in which you want to set the value.
 * \param l Unsigned integer value that you want to assign to the attribute.
 */
void slapi_entry_attr_set_uint( Slapi_Entry* e, const char *type, unsigned int l);

/**
 * Replaces the value or values of an attribute in an entry with a specified long data
 * type value.
 *
 * \param e Entry in which you want to set the value.
 * \param type Attribute type in which you want to set the value.
 * \param l Long integer value that you want to assign to the attribute.
 */
void slapi_entry_attr_set_long(Slapi_Entry* e, const char *type, long l);

/**
 * Replaces the value or values of an attribute in an entry with a specified unsigned
 * long data type value.
 *
 * This function will replace the value or values of an attribute with the unsigned
 * long value that you specify. If the attribute does not exist, it is created with the
 * unsigned long value that you specify.
 *
 * \param e Entry in which you want to set the value.
 * \param type Attribute type in which you want to set the value.
 * \param l Unsigned long value that you want to assign to the attribute.
 */
void slapi_entry_attr_set_ulong(Slapi_Entry* e, const char *type, unsigned long l);

/**
 * Determines if an attribute in an entry contains a specified value.
 *
 * The syntax of the attribute type is taken into account when checking
 * for the specified value.
 *
 * \param e Entry that you want to check.
 * \param type Attribute type that you want to test for the value specified.
 * \param value Value that you want to find in the attribute.
 * \return \c 1 if the attribute contains the specified value.
 * \return \c 0 if the attribute does not contain the specified value.
 * \warning \c value must not be \c NULL.
 */
int slapi_entry_attr_has_syntax_value(const Slapi_Entry *e, const char *type, const Slapi_Value *value);

/**
 * This function determines if the specified entry has child entries.
 *
 * \param e Entry that you want to test for child entries.
 * \return \c 1 if the entry you supply has child entries.
 * \return \c 0 if the entry you supply has child entries.
 */
int slapi_entry_has_children(const Slapi_Entry *e);

/**
 * This function determines if an entry is the root DSE.
 *
 * The root DSE is a special entry that contains information about the Directory
 * Server, including its capabilities and configuration.
 *
 * \param dn The DN that you want to test to see if it is the root DSE entry.
 * \return \c 1 if \c dn is the root DSE.
 * \return \c 0 if \c dn is not the root DSE.
 */
int slapi_is_rootdse( const char *dn );

/**
 * This function returns the approximate size of an entry, rounded to the nearest 1k.
 * 
 * This can be useful for checking cache sizes, estimating storage needs, and so on.
 *
 * When determining the size of an entry, only the sizes of the attribute values are
 * counted; the size of other entry values (such as the size of attribute names,
 * variously-normalized DNs, or any metadata) are not included in the size
 * returned. It is assumed that the size of the metadata, et al., is well enough
 * accounted for by the rounding of the size to the next largest 1k . This holds true
 * especially in larger entries, where the actual size of the attribute values far
 * outweighs the size of the metadata.
 *
 * When determining the size of the entry, both deleted values and deleted
 * attributes are included in the count.
 *
 * \param e Entry from which you want the size returned.
 * \return The size of the entry, rounded to the nearest 1k. The value returned is a
 *         size_t data type with a u_long value.
 * \return A size of 1k if the entry is empty.
 * \warning The \c e parameter must not be \c NULL.
 */
size_t slapi_entry_size(Slapi_Entry *e);

/**
 * Adds an array of #Slapi_Value data values to the existing attribute values in
 * an entry.
 *
 * If the attribute does not exist, it is created with the #Slapi_Value specified.
 *
 * \param e Entry to which you want to add values.
 * \param type Attribute type to which you want to add values.
 * \param vals \c NULL terminated array of #Slapi_Value data values you want to add.
 * \return This function returns \c 0 if successful;  any other value returned
 *         signals failure.
 * \warning This function makes a copy of the parameter \c vals. The \c vals
 *          parameter can be \c NULL.
 */
int slapi_entry_attr_merge_sv( Slapi_Entry *e, const char *type, Slapi_Value **vals );

/**
 * Adds and array of #Slapi_Value data values to the specified attribute in an entry.
 *
 * This function adds an array of #Slapi_Value data values to an attribute. If the
 * attribute does not exist, it is created and given the value contained in the
 * #Slapi_Value array.
 *
 * \param e Entry to which you want to add values.
 * \param type Attribute type to which you want to add values.
 * \param vals \c NULL terminated array of #Slapi_Value data values you want to add.
 * \return \c LDAP_SUCCESS if the #Slapi_Value array if successfully added to the
 *         attribute.
 * \return \c LDAP_TYPE_OR_VALUE_EXISTS if any values you are trying to add duplicate
 *          an existing value in the attribute.
 * \return \c LDAP_OPERATIONS_ERROR if there are pre-existing duplicate values in the
 *         attribute.
 * \warning This function makes a copy of the parameter \c vals. The \c vals
 *          parameter can be \c NULL.
 */
int slapi_entry_add_values_sv( Slapi_Entry *e, const char *type, Slapi_Value **vals );

/**
 * Add a Slapi_ValueSet data value to the specified attribute in an entry.
 *
 * This function adds a set of values to an attribute in an entry. The values added
 * are in the form of a #Slapi_ValueSet data type. If the entry does not contain the
 * attribute specified, it is created with the specified #Slapi_ValueSet values.
 *
 * \param e Entry to which you want to add values.
 * \param type Attribute type to which you want to add values.
 * \param vs #Slapi_ValueSet data value that you want to add to the entry.
 * \return \c 0 when successful; any other value returned signals failure.
 * \warning This function makes a copy of the parameter \c vs.  The \c vs
 *          parameter can be \c NULL.
 */
int slapi_entry_add_valueset(Slapi_Entry *e, const char *type, Slapi_ValueSet *vs);

/**
 * Removes an array of Slapi_Value data values from an attribute in an entry.
 *
 * This function removes an attribute/valueset from an entry. Both the attribute
 * and its #Slapi_Value data values are removed from the entry. If you supply a
 * #Slapi_Value whose value is \c NULL, the function will delete the specified
 * attribute from the entry. In either case, the function returns \c LDAP_SUCCESS.
 *
 * \param e Entry from which you want to delete values.
 * \param type Attribute type from which you want to delete values.
 * \param vals \c NULL terminated array of #Slapi_Value data values that you
 *             want to delete.
 * \return \c LDAP_SUCCESS if the specified attribute and the array of #Slapi_Value
 *         data values are deleted from the entry.
 * \return If the specified attribute contains a \c NULL value, the attribute is
 *         deleted from the attribute list, and the function returns
 *         \c LDAP_NO_SUCH_ATTRIBUTE. As well, if the attribute is not found in the
 *         list of attributes for the specified entry, the function returns
 *         \c LDAP_NO_SUCH_ATTRIBUTE.
 * \return If there is an operational error during the processing of this call such
 *         as a duplicate value found, the function will return
 *         \c LDAP_OPERATIONS_ERROR.
 * \warning The \c vals parameter can be \c NULL, in which case this function does
 *          nothing.
 */
int slapi_entry_delete_values_sv( Slapi_Entry *e, const char *type, Slapi_Value **vals );

/**
 * Merges (adds) and array of #Slapi_Value data values to a specified attribute in
 * an entry.
 *
 * This function adds additional #Slapi_Value data values to the existing values
 * contained in an attribute. If the attribute type does not exist, it is created.
 *
 * If the specified attribute exists in the entry, the function merges the value
 * specified and returns \c LDAP_SUCCESS. If the attribute is not found in the entry,
 * the function creates it with the #Slapi_Value specified and returns \c
 * LDAP_NO_SUCH_ATTRIBUTE.
 *
 * If this function fails, it leaves the values for \c type within a pointer to
 * \c e in an indeterminate state. The present valueset may be truncated.
 *
 * \param e Entry into which you want to merge values.
 * \param type Attribute type that you want to merge the values into.
 * \param vals \c NULL terminated array of #Slapi_Value values that you want to merge
 *             into the entry.
 * \return \c LDAP_SUCCESS
 * \return \c LDAP_NO_SUCH_ATTRIBUTE
 * \warning This function makes a copy of \c vals.  The \c vals parameter
 *          can be \c NULL.
 */
int slapi_entry_merge_values_sv( Slapi_Entry *e, const char *type, Slapi_Value **vals );

/**
 * Replaces the values of an attribute with the #Slapi_Value data value you specify.
 *
 * This function replaces existing attribute values in a specified entry with a single
 * #Slapi_Value data value. The function first deletes the existing attribute from the
 * entry, then replaces it with the new value specified.
 *
 * \param e Entry in which you want to replace values.
 * \param type Attribute type which will receive the replaced values
 * \param vals \c NULL terminated array of #Slapi_Value valyes that should replace
 *             the existing values of the attribute.
 * \return \c 0 when successfull; any other value returned signals failure.
 * \warning This function makes a copy of \c vals.  The \c vals parameter
 *          can be \c NULL.
 */
int slapi_entry_attr_replace_sv( Slapi_Entry *e, const char *type, Slapi_Value **vals );

/**
 * Adds a specified #Slapi_Value data value to an attribute in an entry.
 *
 * This function adds a #Slapi_Value data value to the existing attribute values in an
 * entry. If the specified attribute does not exist in the entry, the attribute is
 * created with the #Slapi_Value specified. The function doesn’t check for duplicate
 * values, meaning it does not check if the value being added is already there.
 *
 * \param e Entry to which you want to add a value.
 * \param type Attribute to which you want to add a value.
 * \param value The #Slapi_Value data value you want to add to the entry.
 * \return \c 0 when successfull; any other value returned signals failure.
 * \warning This function makes a copy of \c value.  The \c value parameter
 *          can be \c NULL.
 */
int slapi_entry_add_value(Slapi_Entry *e, const char *type, const Slapi_Value *value);

/**
 * Adds a string value to an attribute in an entry.
 *
 * This function adds a string value to the existing attribute values in an entry. If
 * the specified attribute does not exist in the entry, the attribute is created with
 * the string value specified. The function doesn’t check for duplicate values; it
 * does not check if the string value being added is already there.
 *
 * \param e Entry to which you want to add a string value.
 * \param type Attribute to which you want to add a string value.
 * \param value String value you want to add.
 * \return \c 0 when successfull; any other value returned signals failure.
 * \warning This function makes a copy of \c value.  The \c value parameter
 *          can be \c NULL.
 */
int slapi_entry_add_string(Slapi_Entry *e, const char *type, const char *value);

/**
 * Deletes a string value from an attribute in an entry.
 *
 * \param e Entry from which you want the string deleted.
 * \param type Attribute type from which you want the string deleted.
 * \param value Value of string to delete.
 * \return \c 0 when successfull; any other value returned signals failure.
 */
int slapi_entry_delete_string(Slapi_Entry *e, const char *type, const char *value);

/**
 * Find differences between two entries.
 *
 * Compares two #Slapi_Entry entries and determines the difference between them.  The
 * differences are returned as the modifications needed to the first entry to make it
 * match the second entry.
 *
 * \param smods An empty #Slapi_Mods that will be filled in with the modifications
 *              needed to make \c e1 the same as \c e2.
 * \param e1 The first entry you want to compare.
 * \param e2 The second entry you want to compare.
 * \param diff_ctrl Allows you to skip comparing operational attributes by passing
 *                  #SLAPI_DUMP_NOOPATTRS.  Pass \c 0 if you want to compare the
 *                  operational attributes.
 * \warning The caller must allocate the #Slapi_Mods that is passed in as \c smods.
 *          This must be an empty #Slapi_Mods, otherwise the contents will be leaked.
 * \warning It is up to the caller to free \c smods when they are finished using them
 *          by calling slapi_mods_free() or slapi_mods_done() if \c smods was allocated
 *          on the stack.
 */
void slapi_entry_diff(Slapi_Mods *smods, Slapi_Entry *e1, Slapi_Entry *e2, int diff_ctrl);

/**
 * Applies an array of \c LDAPMod modifications a Slapi_Entry.
 *
 * \param e Entry to which you want to apply the modifications.
 * \param mods \c NULL terminated array of \c LDAPMod modifications that you
 *             want to apply to the specified entry.
 * \return \c LDAP_SUCCESS if the mods applied to the entry cleanly, otherwise an
 *         LDAP error is returned.
 * \warning It is up to the caller to free the \c LDAPMod array after the mods have
 *          been applied.
 */
int slapi_entry_apply_mods(Slapi_Entry *e, LDAPMod **mods);


/*------------------------
 * Entry flags.
 *-----------------------*/
/**
 * Flag that signifies that an entry is a tombstone entry
 *
 * \see slapi_entry_flag_is_set()
 * \see slapi_entry_set_flag()
 * \see slapi_entry_clear_flag()
 */
#define SLAPI_ENTRY_FLAG_TOMBSTONE		1

/**
 * Determines if certain flags are set for a specified entry.
 *
 * \param e Entry for which you want to check for the specified flag.
 * \param flag The flag whose presense you want to check for. Valid flags are:
 *        \arg #SLAPI_ENTRY_FLAG_TOMBSTONE
 * \return \c 0 if the flag is not set.
 * \return The value of the flag if it is set.
 * \see slapi_entry_clear_flag()
 * \see slapi_entry_set_flag()
 */
int slapi_entry_flag_is_set( const Slapi_Entry *e, unsigned char flag );

/**
 * Sets a flag for a specified entry.
 *
 * \param e Entry for which you want to set the flag.
 * \param flag Flag that you want to set. Valid flags are:
 *        \arg #SLAPI_ENTRY_FLAG_TOMBSTONE
 * \see slapi_entry_clear_flag()
 * \see slapi_entry_flag_is_set()
 */
void slapi_entry_set_flag( Slapi_Entry *e, unsigned char flag);

/**
 * Clears a flag for a specified entry.
 *
 * \param e Entry for which you want to clear the flag.
 * \param flag Flag that you want to clear.  Valid flags are:
 *        \arg #SLAPI_ENTRY_FLAG_TOMBSTONE
 * \see slapi_entry_flag_is_set()
 * \see slapi_entry_set_flag()
 */
void slapi_entry_clear_flag( Slapi_Entry *e, unsigned char flag);


/*------------------------------
 * exported vattrcache routines
 *------------------------------*/
/**
 * Check if an entry is current in the virtual attribute cache.
 *
 * \param e The entry for which you want to check the virtual attribute cache
 *          validity.
 * \return \c 1 if the entry is valid in the cache.
 * \return \c 0 if the entry is invalid in the cache.
 */
int slapi_entry_vattrcache_watermark_isvalid(const Slapi_Entry *e);

/**
 * Mark an entry as valid in the virtual attribute cache.
 *
 * \param e The entry that you want to mark as valid.
 */
void slapi_entry_vattrcache_watermark_set(Slapi_Entry *e);

/**
 * Mark an entry as invalid in the virtual attribute cache.
 *
 * \param e The entry that you want to mark as invalid.
 */
void slapi_entry_vattrcache_watermark_invalidate(Slapi_Entry *e);

/**
 * Invalidate all entries in the virtual attribute cache.
 */
void slapi_entrycache_vattrcache_watermark_invalidate();


/* TODO - Pickup Doxygen work here */
/*
 * Slapi_DN routines
 */
Slapi_DN *slapi_sdn_new( void );
Slapi_DN *slapi_sdn_new_dn_byval(const char *dn);
Slapi_DN *slapi_sdn_new_ndn_byval(const char *ndn);
Slapi_DN *slapi_sdn_new_dn_byref(const char *dn);
Slapi_DN *slapi_sdn_new_ndn_byref(const char *ndn);
Slapi_DN *slapi_sdn_new_dn_passin(const char *dn);
Slapi_DN *slapi_sdn_set_dn_byval(Slapi_DN *sdn, const char *dn);
Slapi_DN *slapi_sdn_set_dn_byref(Slapi_DN *sdn, const char *dn);
Slapi_DN *slapi_sdn_set_dn_passin(Slapi_DN *sdn, const char *dn);
Slapi_DN *slapi_sdn_set_ndn_byval(Slapi_DN *sdn, const char *ndn);
Slapi_DN *slapi_sdn_set_ndn_byref(Slapi_DN *sdn, const char *ndn);
void slapi_sdn_done(Slapi_DN *sdn);
void slapi_sdn_free(Slapi_DN **sdn);
const char * slapi_sdn_get_dn(const Slapi_DN *sdn);
const char * slapi_sdn_get_ndn(const Slapi_DN *sdn);
void slapi_sdn_get_parent(const Slapi_DN *sdn,Slapi_DN *sdn_parent);
void slapi_sdn_get_backend_parent(const Slapi_DN *sdn,Slapi_DN *sdn_parent,const Slapi_Backend *backend);
Slapi_DN * slapi_sdn_dup(const Slapi_DN *sdn);
void slapi_sdn_copy(const Slapi_DN *from, Slapi_DN *to);
int slapi_sdn_compare( const Slapi_DN *sdn1, const Slapi_DN *sdn2 );
int slapi_sdn_isempty( const Slapi_DN *sdn);
int slapi_sdn_issuffix(const Slapi_DN *sdn, const Slapi_DN *suffixsdn);
int slapi_sdn_isparent( const Slapi_DN *parent, const Slapi_DN *child );
int slapi_sdn_isgrandparent( const Slapi_DN *parent, const Slapi_DN *child );
int slapi_sdn_get_ndn_len(const Slapi_DN *sdn);
int slapi_sdn_scope_test( const Slapi_DN *dn, const Slapi_DN *base, int scope );
void slapi_sdn_get_rdn(const Slapi_DN *sdn,Slapi_RDN *rdn);
Slapi_DN *slapi_sdn_set_rdn(Slapi_DN *sdn, const Slapi_RDN *rdn);
Slapi_DN *slapi_sdn_set_parent(Slapi_DN *sdn, const Slapi_DN *parentdn);
int slapi_sdn_is_rdn_component(const Slapi_DN *rdn, const Slapi_Attr *a, const Slapi_Value *v);
char * slapi_moddn_get_newdn(Slapi_DN *dn_olddn, char *newrdn, char *newsuperiordn);


/*
 * Slapi_RDN functions
 */
Slapi_RDN *slapi_rdn_new( void );
Slapi_RDN *slapi_rdn_new_dn(const char *dn);
Slapi_RDN *slapi_rdn_new_sdn(const Slapi_DN *sdn);
Slapi_RDN *slapi_rdn_new_rdn(const Slapi_RDN *fromrdn);
void slapi_rdn_init(Slapi_RDN *rdn);
void slapi_rdn_init_dn(Slapi_RDN *rdn,const char *dn);
void slapi_rdn_init_sdn(Slapi_RDN *rdn,const Slapi_DN *sdn);
void slapi_rdn_init_rdn(Slapi_RDN *rdn,const Slapi_RDN *fromrdn);
void slapi_rdn_set_dn(Slapi_RDN *rdn,const char *dn);
void slapi_rdn_set_sdn(Slapi_RDN *rdn,const Slapi_DN *sdn);
void slapi_rdn_set_rdn(Slapi_RDN *rdn,const Slapi_RDN *fromrdn);
void slapi_rdn_free(Slapi_RDN **rdn);
void slapi_rdn_done(Slapi_RDN *rdn);
int slapi_rdn_get_first(Slapi_RDN *rdn, char **type, char **value);
int slapi_rdn_get_next(Slapi_RDN *rdn, int index, char **type, char **value);
int slapi_rdn_get_index(Slapi_RDN *rdn, const char *type, const char *value,size_t length);
int slapi_rdn_get_index_attr(Slapi_RDN *rdn, const char *type, char **value);
int slapi_rdn_contains(Slapi_RDN *rdn, const char *type, const char *value,size_t length);
int slapi_rdn_contains_attr(Slapi_RDN *rdn, const char *type, char **value);
int slapi_rdn_add(Slapi_RDN *rdn, const char *type, const char *value);
int slapi_rdn_remove_index(Slapi_RDN *rdn, int atindex);
int slapi_rdn_remove(Slapi_RDN *rdn, const char *type, const char *value, size_t length);
int slapi_rdn_remove_attr(Slapi_RDN *rdn, const char *type);
int slapi_rdn_isempty(const Slapi_RDN *rdn);
int slapi_rdn_get_num_components(Slapi_RDN *rdn);
int slapi_rdn_compare(Slapi_RDN *rdn1, Slapi_RDN *rdn2);
const char *slapi_rdn_get_rdn(const Slapi_RDN *rdn);
const char *slapi_rdn_get_nrdn(const Slapi_RDN *rdn); 
Slapi_DN *slapi_sdn_add_rdn(Slapi_DN *sdn, const Slapi_RDN *rdn);


/*
 * utility routines for dealing with DNs
 */
char *slapi_dn_normalize( char *dn );
char *slapi_dn_normalize_to_end( char *dn, char *end );
char *slapi_dn_ignore_case( char *dn );
char *slapi_dn_normalize_case( char *dn );
char *slapi_dn_beparent( Slapi_PBlock *pb, const char *dn );
const char *slapi_dn_find_parent( const char *dn );
char *slapi_dn_parent( const char *dn );
int slapi_dn_issuffix( const char *dn, const char *suffix );
int slapi_dn_isparent( const char *parentdn, const char *childdn );
int slapi_dn_isroot( const char *dn );
int slapi_dn_isbesuffix( Slapi_PBlock *pb, const char *dn );
int slapi_rdn2typeval( char *rdn, char **type, struct berval *bv );
char *slapi_dn_plus_rdn(const char *dn, const char *rdn);


/*
 * thread safe random functions
 */
int slapi_rand_r(unsigned int * seed);
void slapi_rand_array(void *randx, size_t len);
int slapi_rand();


/*
 * attribute routines
 */
Slapi_Attr *slapi_attr_new( void );
Slapi_Attr *slapi_attr_init(Slapi_Attr *a, const char *type);
void slapi_attr_free( Slapi_Attr **a );
Slapi_Attr *slapi_attr_dup(const Slapi_Attr *attr);
int slapi_attr_add_value(Slapi_Attr *a, const Slapi_Value *v);
int slapi_attr_type2plugin( const char *type, void **pi );
int slapi_attr_get_type( Slapi_Attr *attr, char **type );
int slapi_attr_get_oid_copy( const Slapi_Attr *attr, char **oidp );
int slapi_attr_get_syntax_oid_copy( const Slapi_Attr *a, char **oidp );
int slapi_attr_get_flags( const Slapi_Attr *attr, unsigned long *flags );
int slapi_attr_flag_is_set( const Slapi_Attr *attr, unsigned long flag );
int slapi_attr_value_cmp( const Slapi_Attr *attr, const struct berval *v1, const struct berval *v2 );
int slapi_attr_value_find( const Slapi_Attr *a, const struct berval *v );

int slapi_attr_type_cmp( const char *t1, const char *t2, int opt );
/* Mode of operation (opt) values for slapi_attr_type_cmp() */
#define SLAPI_TYPE_CMP_EXACT	0
#define SLAPI_TYPE_CMP_BASE	1
#define SLAPI_TYPE_CMP_SUBTYPE	2

int slapi_attr_types_equivalent(const char *t1, const char *t2);
char *slapi_attr_basetype( const char *type, char *buf, size_t bufsiz );
int slapi_attr_first_value( Slapi_Attr *a, Slapi_Value **v );
int slapi_attr_next_value( Slapi_Attr *a, int hint, Slapi_Value **v );
int slapi_attr_get_numvalues( const Slapi_Attr *a, int *numValues);
int slapi_attr_get_valueset(const Slapi_Attr *a, Slapi_ValueSet **vs);
/* Make the valuset in Slapi_Attr be *vs--not a copy */
int slapi_attr_set_valueset(Slapi_Attr *a, const Slapi_ValueSet *vs);
int slapi_attr_set_type(Slapi_Attr *a, const char *type);
int slapi_attr_get_bervals_copy( Slapi_Attr *a, struct berval ***vals );
char * slapi_attr_syntax_normalize( const char *s );
void slapi_valueset_set_valueset(Slapi_ValueSet *vs1, const Slapi_ValueSet *vs2);
void slapi_valueset_set_from_smod(Slapi_ValueSet *vs, Slapi_Mod *smod);


/*
 * value routines
 */
Slapi_Value *slapi_value_new( void );
Slapi_Value *slapi_value_new_berval(const struct berval *bval);
Slapi_Value *slapi_value_new_value(const Slapi_Value *v);
Slapi_Value *slapi_value_new_string(const char *s);
Slapi_Value *slapi_value_new_string_passin(char *s);
Slapi_Value *slapi_value_init(Slapi_Value *v);
Slapi_Value *slapi_value_init_berval(Slapi_Value *v, struct berval *bval);
Slapi_Value *slapi_value_init_string(Slapi_Value *v,const char *s);
Slapi_Value *slapi_value_init_string_passin(Slapi_Value *v, char *s);
Slapi_Value *slapi_value_dup(const Slapi_Value *v);
void slapi_value_set_flags(Slapi_Value *v, unsigned long flags);
void slapi_values_set_flags(Slapi_Value **vs, unsigned long flags);
unsigned long slapi_value_get_flags(Slapi_Value *v);
void slapi_value_free(Slapi_Value **value);
const struct berval *slapi_value_get_berval( const Slapi_Value *value );
Slapi_Value *slapi_value_set_berval( Slapi_Value *value, const struct berval *bval );
Slapi_Value *slapi_value_set_value( Slapi_Value *value, const Slapi_Value *vfrom);
Slapi_Value *slapi_value_set( Slapi_Value *value, void *val, unsigned long len);
int slapi_value_set_string(Slapi_Value *value, const char *strVal);
int slapi_value_set_string_passin(Slapi_Value *value, char *strVal);
int slapi_value_set_int(Slapi_Value *value, int intVal);
const char*slapi_value_get_string(const Slapi_Value *value);
int slapi_value_get_int(const Slapi_Value *value);
unsigned int slapi_value_get_uint(const Slapi_Value *value);
long slapi_value_get_long(const Slapi_Value *value);
unsigned long slapi_value_get_ulong(const Slapi_Value *value);
long long slapi_value_get_longlong(const Slapi_Value *value);
unsigned long long slapi_value_get_ulonglong(const Slapi_Value *value);
size_t slapi_value_get_length(const Slapi_Value *value);
int slapi_value_compare(const Slapi_Attr *a,const Slapi_Value *v1,const Slapi_Value *v2);


/*
 * Valueset functions.
 */
#define SLAPI_VALUE_FLAG_PASSIN			0x1
#define SLAPI_VALUE_FLAG_IGNOREERROR	0x2
#define SLAPI_VALUE_FLAG_PRESERVECSNSET	0x4
#define SLAPI_VALUE_FLAG_USENEWVALUE	0x8	/* see valueset_remove_valuearray */

Slapi_ValueSet *slapi_valueset_new( void );
void slapi_valueset_free(Slapi_ValueSet *vs);
void slapi_valueset_init(Slapi_ValueSet *vs);
void slapi_valueset_done(Slapi_ValueSet *vs);
void slapi_valueset_add_value(Slapi_ValueSet *vs, const Slapi_Value *addval);
void slapi_valueset_add_value_ext(Slapi_ValueSet *vs, Slapi_Value *addval, unsigned long flags);
int slapi_valueset_first_value( Slapi_ValueSet *vs, Slapi_Value **v );
int slapi_valueset_next_value( Slapi_ValueSet *vs, int index, Slapi_Value **v);
int slapi_valueset_count( const Slapi_ValueSet *vs);
void slapi_valueset_set_from_smod(Slapi_ValueSet *vs, Slapi_Mod *smod);
void slapi_valueset_set_valueset(Slapi_ValueSet *vs1, const Slapi_ValueSet *vs2);
Slapi_Value *slapi_valueset_find(const Slapi_Attr *a, const Slapi_ValueSet *vs, const Slapi_Value *v);


/*
 * operation routines
 */
int slapi_op_abandoned( Slapi_PBlock *pb );
unsigned long slapi_op_get_type(Slapi_Operation * op);
void slapi_operation_set_flag(Slapi_Operation *op, unsigned long flag);
void slapi_operation_clear_flag(Slapi_Operation *op, unsigned long flag);
int slapi_operation_is_flag_set(Slapi_Operation *op, unsigned long flag);
int slapi_op_reserved(Slapi_PBlock *pb);
void slapi_operation_set_csngen_handler ( Slapi_Operation *op, void *callback );
void slapi_operation_set_replica_attr_handler ( Slapi_Operation *op, void *callback );
int slapi_operation_get_replica_attr ( Slapi_PBlock *pb, Slapi_Operation *op, const char *type, void *value );
char *slapi_op_type_to_string(unsigned long type);

/*
 * LDAPMod manipulation routines
 */
Slapi_Mods* slapi_mods_new( void );
void slapi_mods_init(Slapi_Mods *smods, int initCount);
void slapi_mods_init_byref(Slapi_Mods *smods, LDAPMod **mods);
void slapi_mods_init_passin(Slapi_Mods *smods, LDAPMod **mods);
void slapi_mods_free(Slapi_Mods **smods);
void slapi_mods_done(Slapi_Mods *smods);
void slapi_mods_insert_at(Slapi_Mods *smods, LDAPMod *mod, int pos);
void slapi_mods_insert_smod_at(Slapi_Mods *smods, Slapi_Mod *smod, int pos);
void slapi_mods_insert_before(Slapi_Mods *smods, LDAPMod *mod);
void slapi_mods_insert_smod_before(Slapi_Mods *smods, Slapi_Mod *smod);
void slapi_mods_insert_after(Slapi_Mods *smods, LDAPMod *mod);
void slapi_mods_insert_after(Slapi_Mods *smods, LDAPMod *mod);
void slapi_mods_add( Slapi_Mods *smods, int modtype, const char *type, unsigned long len, const char *val);
void slapi_mods_add_ldapmod(Slapi_Mods *smods, LDAPMod *mod);
void slapi_mods_add_modbvps( Slapi_Mods *smods, int modtype, const char *type, struct berval **bvps );
void slapi_mods_add_mod_values( Slapi_Mods *smods, int modtype, const char *type, Slapi_Value **va );
void slapi_mods_add_smod(Slapi_Mods *smods, Slapi_Mod *smod);
void slapi_mods_add_string( Slapi_Mods *smods, int modtype, const char *type, const char *val);
void slapi_mods_remove(Slapi_Mods *smods);
LDAPMod *slapi_mods_get_first_mod(Slapi_Mods *smods);
LDAPMod *slapi_mods_get_next_mod(Slapi_Mods *smods);
Slapi_Mod *slapi_mods_get_first_smod(Slapi_Mods *smods, Slapi_Mod *smod);
Slapi_Mod *slapi_mods_get_next_smod(Slapi_Mods *smods, Slapi_Mod *smod);
void slapi_mods_iterator_backone(Slapi_Mods *smods);
LDAPMod **slapi_mods_get_ldapmods_byref(Slapi_Mods *smods);
LDAPMod **slapi_mods_get_ldapmods_passout(Slapi_Mods *smods);
int slapi_mods_get_num_mods(const Slapi_Mods *smods);
void slapi_mods_dump(const Slapi_Mods *smods, const char *text);

Slapi_Mod* slapi_mod_new( void );
void slapi_mod_init(Slapi_Mod *smod, int initCount);
void slapi_mod_init_byval(Slapi_Mod *smod, const LDAPMod *mod);
void slapi_mod_init_byref(Slapi_Mod *smod, LDAPMod *mod);
void slapi_mod_init_passin(Slapi_Mod *smod, LDAPMod *mod);
/* init a mod and set the mod values to be a copy of the given valueset */
void slapi_mod_init_valueset_byval(Slapi_Mod *smod, int op, const char *type, const Slapi_ValueSet *svs);
void slapi_mod_add_value(Slapi_Mod *smod, const struct berval *val);
void slapi_mod_remove_value(Slapi_Mod *smod);
struct berval *slapi_mod_get_first_value(Slapi_Mod *smod);
struct berval *slapi_mod_get_next_value(Slapi_Mod *smod);
const char *slapi_mod_get_type(const Slapi_Mod *smod);
int slapi_mod_get_operation(const Slapi_Mod *smod);
void slapi_mod_set_type(Slapi_Mod *smod, const char *type);
void slapi_mod_set_operation(Slapi_Mod *smod, int op);
int slapi_mod_get_num_values(const Slapi_Mod *smod);
const LDAPMod *slapi_mod_get_ldapmod_byref(const Slapi_Mod *smod);
LDAPMod *slapi_mod_get_ldapmod_passout(Slapi_Mod *smod);
void slapi_mod_free(Slapi_Mod **smod);
void slapi_mod_done(Slapi_Mod *mod);
int slapi_mod_isvalid(const Slapi_Mod *mod);
void slapi_mod_dump(LDAPMod *mod, int n);


/* helper functions to translate between entry and a set of mods */
int slapi_mods2entry(Slapi_Entry **e, const char *dn, LDAPMod **attrs);
int slapi_entry2mods(const Slapi_Entry *e, char **dn, LDAPMod ***attrs);


/*
 * routines for dealing with filters
 */
int slapi_filter_get_choice( Slapi_Filter *f );
int slapi_filter_get_ava( Slapi_Filter *f, char **type, struct berval **bval );
int slapi_filter_get_attribute_type( Slapi_Filter *f, char **type );
int slapi_filter_get_subfilt( Slapi_Filter *f, char **type, char **initial,
	char ***any, char **final );
Slapi_Filter *slapi_filter_list_first( Slapi_Filter *f );
Slapi_Filter *slapi_filter_list_next( Slapi_Filter *f, Slapi_Filter *fprev );
Slapi_Filter *slapi_str2filter( char *str );
Slapi_Filter *slapi_filter_join( int ftype, Slapi_Filter *f1,
	Slapi_Filter *f2 );
Slapi_Filter *slapi_filter_join_ex( int ftype, Slapi_Filter *f1, 
	Slapi_Filter *f2, int recurse_always );

void slapi_filter_free( Slapi_Filter *f, int recurse );
int slapi_filter_test( Slapi_PBlock *pb, Slapi_Entry *e, Slapi_Filter *f,
	int verify_access );
int slapi_vattr_filter_test( Slapi_PBlock *pb, Slapi_Entry *e,
								struct slapi_filter	*f, int verify_access);
int slapi_filter_test_simple( Slapi_Entry *e, Slapi_Filter *f);
char *slapi_find_matching_paren( const char *str );
int slapi_filter_test_ext( Slapi_PBlock *pb, Slapi_Entry *e, Slapi_Filter *f,
	int verify_access , int only_test_access);
int slapi_vattr_filter_test_ext( Slapi_PBlock *pb, Slapi_Entry *e, Slapi_Filter *f,
	int verify_access , int only_test_access);
int slapi_filter_compare(struct slapi_filter *f1, struct slapi_filter *f2);
Slapi_Filter *slapi_filter_dup(Slapi_Filter *f);
int slapi_filter_changetype(Slapi_Filter *f, const char *newtype);


/*
 * slapi_filter_apply() is used to apply a function to each simple filter
 * component within a complex filter.  A 'simple filter' is anything other
 * than AND, OR or NOT.
 */
typedef int (*FILTER_APPLY_FN)( Slapi_Filter *f, void *arg);
int slapi_filter_apply( struct slapi_filter *f, FILTER_APPLY_FN fn, void *arg,
	int *error_code );
/*
 * Possible return values for slapi_filter_apply() and FILTER_APPLY_FNs.
 * Note that a FILTER_APPLY_FN should return _STOP or _CONTINUE only.
 */
#define SLAPI_FILTER_SCAN_STOP		-1	/* premature abort */
#define SLAPI_FILTER_SCAN_ERROR		-2 	/* an error occurred */
#define SLAPI_FILTER_SCAN_NOMORE	0	/* success */
#define SLAPI_FILTER_SCAN_CONTINUE	1	/* continue scanning */
/* Error codes that slapi_filter_apply() may set in *error_code */
#define SLAPI_FILTER_UNKNOWN_FILTER_TYPE 2
	

/*
 * Bit-Twiddlers
 */
unsigned char slapi_setbit_uchar(unsigned char f,unsigned char bitnum);
unsigned char slapi_unsetbit_uchar(unsigned char f,unsigned char bitnum);
int slapi_isbitset_uchar(unsigned char f,unsigned char bitnum);
unsigned int slapi_setbit_int(unsigned int f,unsigned int bitnum);
unsigned int slapi_unsetbit_int(unsigned int f,unsigned int bitnum);
int slapi_isbitset_int(unsigned int f,unsigned int bitnum);


/*
 * routines for sending entries and results to the client
 */
int slapi_send_ldap_search_entry( Slapi_PBlock *pb, Slapi_Entry *e,
	LDAPControl **ectrls, char **attrs, int attrsonly );
void slapi_send_ldap_result( Slapi_PBlock *pb, int err, char *matched,
	char *text, int nentries, struct berval **urls );
int slapi_send_ldap_referral( Slapi_PBlock *pb, Slapi_Entry *e,
	struct berval **refs, struct berval ***urls );
typedef int (*send_ldap_search_entry_fn_ptr_t)( Slapi_PBlock *pb,
	Slapi_Entry *e, LDAPControl **ectrls, char **attrs, int attrsonly );
typedef void (*send_ldap_result_fn_ptr_t)( Slapi_PBlock *pb, int err,
	char *matched, char *text, int nentries, struct berval **urls );
typedef int (*send_ldap_referral_fn_ptr_t)( Slapi_PBlock *pb,
	Slapi_Entry *e, struct berval **refs, struct berval ***urls );


/*
 * matching rule
 */
typedef int (*mrFilterMatchFn) (void* filter, Slapi_Entry*, Slapi_Attr* vals);
/* returns:  0  filter matched
 *	    -1  filter did not match
 *	    >0  an LDAP error code
 */
int slapi_mr_indexer_create(Slapi_PBlock* opb);
int slapi_mr_filter_index(Slapi_Filter* f, Slapi_PBlock* pb);
int slapi_berval_cmp(const struct berval* L, const struct berval* R);
#define SLAPI_BERVAL_EQ(L,R) ((L)->bv_len == (R)->bv_len && \
        ! memcmp ((L)->bv_val, (R)->bv_val, (L)->bv_len))

typedef struct slapi_matchingRuleEntry {
    char *mr_oid;
    char *mr_oidalias;
    char *mr_name;
    char *mr_desc;
    char *mr_syntax;
    int mr_obsolete;
} slapi_matchingRuleEntry;
typedef struct slapi_matchingRuleEntry	Slapi_MatchingRuleEntry;

Slapi_MatchingRuleEntry *slapi_matchingrule_new(void);
void slapi_matchingrule_free(Slapi_MatchingRuleEntry **mrEntry,
                             int freeMembers);
int slapi_matchingrule_get(Slapi_MatchingRuleEntry *mr, int arg, void *value);
int slapi_matchingrule_set(Slapi_MatchingRuleEntry *mr, int arg, void *value);
int slapi_matchingrule_register(Slapi_MatchingRuleEntry *mrEntry);
int slapi_matchingrule_unregister(char *oid);
int slapi_matchingrule_is_ordering(const char *oid_or_name, const char *syntax_oid);

/*
 * access control
 */
int slapi_access_allowed( Slapi_PBlock *pb, Slapi_Entry *e, char *attr,
	struct berval *val, int access );
int slapi_acl_check_mods( Slapi_PBlock *pb, Slapi_Entry *e,
	LDAPMod **mods, char **errbuf );
int slapi_acl_verify_aci_syntax(Slapi_PBlock *pb, Slapi_Entry *e, char **errbuf);


/*
 * attribute stuff
 */
int slapi_value_find( void *plugin, struct berval **vals, struct berval *v );


/*
 * password handling
 */
#define SLAPI_USERPWD_ATTR "userpassword"
int slapi_pw_find_sv( Slapi_Value **vals, const Slapi_Value *v );

/* value encoding encoding */
/* checks if the value is encoded with any known algorithm*/
int slapi_is_encoded(char *value); 
/* encode value with the specified algorithm */
char* slapi_encode(char *value, char *alg);


/* UTF8 related */
int slapi_has8thBit(unsigned char *s);
unsigned char *slapi_utf8StrToLower(unsigned char *s);
void slapi_utf8ToLower(unsigned char *s, unsigned char *d, int *ssz, int *dsz);
int slapi_utf8isUpper(unsigned char *s);
unsigned char *slapi_utf8StrToUpper(unsigned char *s);
void slapi_utf8ToUpper(unsigned char *s, unsigned char *d, int *ssz, int *dsz);
int slapi_utf8isLower(unsigned char *s);
int slapi_utf8casecmp(unsigned char *s0, unsigned char *s1);
int slapi_utf8ncasecmp(unsigned char *s0, unsigned char *s1, int n);

unsigned char *slapi_UTF8STRTOLOWER(char *s);
void slapi_UTF8TOLOWER(char *s, char *d, int *ssz, int *dsz);
int slapi_UTF8ISUPPER(char *s);
unsigned char *slapi_UTF8STRTOUPPER(char *s);
void slapi_UTF8TOUPPER(char *s, char *d, int *ssz, int *dsz);
int slapi_UTF8ISLOWER(char *s);
int slapi_UTF8CASECMP(char *s0, char *s1);
int slapi_UTF8NCASECMP(char *s0, char *s1, int n);



/*
 * Interface to the API broker service
 *
 * The API broker allows plugins to publish an API that may be discovered
 * and used dynamically at run time by other subsystems e.g. other plugins.
 */
										  
/* Function:	slapi_apib_register
   Description:	this function allows publication of an interface
   Parameters:	guid - a string constant that uniquely identifies the
		    interface (must exist for the life of the server)
		api - a vtable for the published api (must exist for the
		    life of the server or until the reference count,
		    if it exists, reaches zero)
   Return:	0 if function succeeds
		non-zero otherwise
*/
int slapi_apib_register(char *guid, void **api); /* publish an interface */

/* Function:	slapi_apib_unregister
   Description:	this function allows removal of a published interface
   Parameters:	guid - a string constant that uniquely identifies the interface
   Return:	0 if function succeeds
		non-zero otherwise
*/
int slapi_apib_unregister(char *guid); /* remove interface from published list */


/* Function:	slapi_apib_get_interface
   Description:	this function allows retrieval of a published interface,
		    if the api reference counted, then the reference
		    count is incremented
   Parameters:	guid - a string constant that uniquely identifies the
		    interface requested
		api - the retrieved vtable for the published api (must NOT
		    be freed)
   Return:	0 if function succeeds
		non-zero otherwise
*/
int slapi_apib_get_interface(char *guid, void ***api); /* retrieve an interface for use */


/* Function:	slapi_apib_make_reference_counted
   Description:	this function makes an interface a reference counted interface
		    it must be called prior to registering the interface
   Parameters:	api - the api to make a reference counted api
		callback - if non-zero, this must be a pointer to a function
		    which the api broker will call when the ref count for
		    the api reaches zero.  This function must return 0 if
		    it deregisters the api, non-zero otherwise
		api - the retrieved vtable for the published api (must NOT
		    be freed)
   Return:	0 if function succeeds
		non-zero otherwise
*/
typedef int (*slapi_apib_callback_on_zero)(void **api);

int slapi_apib_make_reference_counted(void **api,
	slapi_apib_callback_on_zero callback);


/* Function:	slapi_apib_addref
   Description:	this function adds to the reference count of an api - a
		    call to this function should be paired with a call
		    to slapi_apib_release
		 - ONLY FOR REFERENCE COUNTED APIS
   Parameters:	api - the api to add a reference to
   Return:	the new reference count
*/
int slapi_apib_addref(void **api);


/* Function:	slapi_apib_release
   Description:	this function adds to the reference count of an api - a
		    call to this function should be paired with a prior call
		    to slapi_apib_addref or slapi_apib_get_interface
		- ONLY FOR REFERENCE COUNTED APIS
   Parameters:	api - the api to add a reference to
   Return:	the new reference count
*/
int slapi_apib_release(void **api);

/**** End of API broker interface. *******************************************/


/*
 * routines for dealing with controls
 */
int slapi_control_present( LDAPControl **controls, char *oid,
	struct berval **val, int *iscritical );
void slapi_register_supported_control( char *controloid,
	unsigned long controlops );
LDAPControl * slapi_dup_control( LDAPControl *ctrl );

#define SLAPI_OPERATION_BIND		0x00000001UL
#define SLAPI_OPERATION_UNBIND		0x00000002UL
#define SLAPI_OPERATION_SEARCH		0x00000004UL
#define SLAPI_OPERATION_MODIFY		0x00000008UL
#define SLAPI_OPERATION_ADD		0x00000010UL
#define SLAPI_OPERATION_DELETE		0x00000020UL
#define SLAPI_OPERATION_MODDN		0x00000040UL
#define SLAPI_OPERATION_MODRDN		SLAPI_OPERATION_MODDN
#define SLAPI_OPERATION_COMPARE		0x00000080UL
#define SLAPI_OPERATION_ABANDON		0x00000100UL
#define SLAPI_OPERATION_EXTENDED	0x00000200UL
#define SLAPI_OPERATION_ANY		0xFFFFFFFFUL
#define SLAPI_OPERATION_NONE		0x00000000UL
int slapi_get_supported_controls_copy( char ***ctrloidsp,
	unsigned long **ctrlopsp );
int slapi_build_control( char *oid, BerElement *ber,
        char iscritical, LDAPControl **ctrlp );
int slapi_build_control_from_berval( char *oid, struct berval *bvp,
        char iscritical, LDAPControl **ctrlp );

/* Given an array of controls e.g. LDAPControl **ctrls, add the given
   control to the end of the array, growing the array with realloc
   e.g. slapi_add_control_ext(&ctrls, newctrl, 1);
   if ctrls is NULL, the array will be created with malloc
   if copy is true, the given control will be copied
   if copy is false, the given control will be used and owned by the array
   if copy is false, make sure the control can be freed by ldap_controls_free
*/
void slapi_add_control_ext( LDAPControl ***ctrlsp, LDAPControl *newctrl, int copy );

/* Given an array of controls e.g. LDAPControl **ctrls, add all of the given
   controls in the newctrls array to the end of ctrls, growing the array with realloc
   if ctrls is NULL, the array will be created with malloc
   if copy is true, each given control will be copied
   if copy is false, each given control will be used and owned by the array
   if copy is false, make sure each control can be freed by ldap_controls_free
*/
void slapi_add_controls( LDAPControl ***ctrlsp, LDAPControl **newctrls, int copy );

/*
 * routines for dealing with extended operations
 */
char **slapi_get_supported_extended_ops_copy( void );


/*
 * bind, including SASL 
 */
void slapi_register_supported_saslmechanism( char *mechanism );
char ** slapi_get_supported_saslmechanisms_copy( void );
void slapi_add_auth_response_control( Slapi_PBlock *pb, const char *binddn );
int slapi_add_pwd_control( Slapi_PBlock *pb, char *arg, long time );
int slapi_pwpolicy_make_response_control (Slapi_PBlock *pb, int seconds, int logins, int error);
/* Password Policy Response Control stuff - the error argument above */
#define LDAP_PWPOLICY_PWDEXPIRED		0
#define LDAP_PWPOLICY_ACCTLOCKED		1
#define LDAP_PWPOLICY_CHGAFTERRESET		2
#define LDAP_PWPOLICY_PWDMODNOTALLOWED		3
#define LDAP_PWPOLICY_MUSTSUPPLYOLDPWD		4
#define LDAP_PWPOLICY_INVALIDPWDSYNTAX		5
#define LDAP_PWPOLICY_PWDTOOSHORT		6
#define LDAP_PWPOLICY_PWDTOOYOUNG		7
#define LDAP_PWPOLICY_PWDINHISTORY		8

/*
 * routine for freeing the ch_arrays returned by the slapi_get*_copy functions above
 */
void slapi_ch_array_free( char **array );
/*
 * Add the given string to the given null terminated array.
 * s is not copied, so if you want to add a copy of s to the
 * array, use slapi_ch_strdup(s)
 * if *a is NULL, a new array will be created
 */
void slapi_ch_array_add( char ***array, char *string );


/*
 * checking routines for allocating and freeing memory
 */
char * slapi_ch_malloc( unsigned long size );
char * slapi_ch_realloc( char *block, unsigned long size );
char * slapi_ch_calloc( unsigned long nelem, unsigned long size );
char * slapi_ch_strdup( const char *s );
void slapi_ch_free( void **ptr );
void slapi_ch_free_string( char **s );
struct berval*  slapi_ch_bvdup(const struct berval*);
struct berval** slapi_ch_bvecdup(struct berval**);
void slapi_ch_bvfree(struct berval** v);
char * slapi_ch_smprintf(const char *fmt, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 1, 2)));
#else
        ;
#endif

/*
 * syntax plugin routines
 */
int slapi_call_syntax_values2keys_sv( void *vpi, Slapi_Value **vals,
	Slapi_Value ***ivals, int ftype );
int slapi_call_syntax_values2keys_sv_pb( void *vpi, Slapi_Value **vals,
	Slapi_Value ***ivals, int ftype, Slapi_PBlock *pb );
int slapi_call_syntax_assertion2keys_ava_sv( void *vpi, Slapi_Value *val,
	Slapi_Value ***ivals, int ftype );
int slapi_call_syntax_assertion2keys_sub_sv( void *vpi, char *initial,
	char **any, char *final, Slapi_Value ***ivals );


/*
 * internal operation and plugin callback routines
 */
typedef void (*plugin_result_callback)(int rc, void *callback_data);
typedef int (*plugin_referral_entry_callback)(char * referral, 
	void *callback_data);
typedef int (*plugin_search_entry_callback)(Slapi_Entry *e, 
	void *callback_data);
void slapi_free_search_results_internal(Slapi_PBlock *pb);


/*
 * The following functions can be used for internal operations based on DN
 * as well as on uniqueid. These functions should be used by all new plugins
 * and preferrably old plugins should be changed to use them to take
 * advantage of new plugin configuration capabilities and to use an
 * extensible interface.
 *
 * These functions return -1 if pb is NULL and 0 otherwise.
 * The SLAPI_PLUGIN_INTOP_RESULT pblock parameter should be checked to
 * check if the operation was successful. 
 *
 * Helper functions are provided to set up pblock parameters currently used
 * by the functions, e.g., slapi_search_internal_set_pb().
 * Additional parameters may be set directly in the pblock.
 */

int slapi_search_internal_pb(Slapi_PBlock *pb);
int slapi_search_internal_callback_pb(Slapi_PBlock *pb, void *callback_data,
	plugin_result_callback prc, plugin_search_entry_callback psec,
	plugin_referral_entry_callback prec);
int slapi_add_internal_pb(Slapi_PBlock *pb);
int slapi_modify_internal_pb(Slapi_PBlock *pb);
int slapi_modrdn_internal_pb(Slapi_PBlock *pb);
int slapi_delete_internal_pb(Slapi_PBlock *pb);


int slapi_seq_internal_callback_pb(Slapi_PBlock *pb, void *callback_data,
	plugin_result_callback res_callback,
	plugin_search_entry_callback srch_callback,
	plugin_referral_entry_callback ref_callback);

void slapi_search_internal_set_pb(Slapi_PBlock *pb, const char *base,
	int scope, const char *filter, char **attrs, int attrsonly,
	LDAPControl **controls, const char *uniqueid,
	Slapi_ComponentId *plugin_identity, int operation_flags);
void slapi_add_entry_internal_set_pb(Slapi_PBlock *pb, Slapi_Entry *e,
	LDAPControl **controls, Slapi_ComponentId *plugin_identity,
	int operation_flags);
int slapi_add_internal_set_pb(Slapi_PBlock *pb, const char *dn,
	LDAPMod **attrs, LDAPControl **controls,
	Slapi_ComponentId *plugin_identity, int operation_flags);
void slapi_modify_internal_set_pb(Slapi_PBlock *pb, const char *dn,
	LDAPMod **mods, LDAPControl **controls, const char *uniqueid,
	Slapi_ComponentId *plugin_identity, int operation_flags);
void slapi_rename_internal_set_pb(Slapi_PBlock *pb, const char *olddn,
	const char *newrdn, const char *newsuperior, int deloldrdn,
	LDAPControl **controls, const char *uniqueid,
	Slapi_ComponentId *plugin_identity, int operation_flags);
void slapi_delete_internal_set_pb(Slapi_PBlock *pb, const char *dn,
	LDAPControl **controls, const char *uniqueid,
	Slapi_ComponentId *plugin_identity, int operation_flags);
void slapi_seq_internal_set_pb(Slapi_PBlock *pb, char *ibase, int type,
	char *attrname, char *val, char **attrs, int attrsonly,
	LDAPControl **controls, Slapi_ComponentId *plugin_identity,
	int operation_flags);

/*
 * slapi_search_internal_get_entry() finds an entry given a dn.  It returns
 * an LDAP error code (LDAP_SUCCESS if all goes well).
 */
int slapi_search_internal_get_entry( Slapi_DN *dn, char ** attrlist,
	Slapi_Entry **ret_entry , void *caller_identity);

/* 
 * interface for registering object extensions.
 */
typedef void *(*slapi_extension_constructor_fnptr)(void *object, void *parent);

typedef void (*slapi_extension_destructor_fnptr)(void *extension,
	void *object, void *parent);

int slapi_register_object_extension( const char *pluginname,
	const char *objectname, slapi_extension_constructor_fnptr constructor, 
	slapi_extension_destructor_fnptr destructor, int *objecttype,
	int *extensionhandle);

/* objects that can be extended (possible values for the objectname param.) */
#define SLAPI_EXT_CONNECTION	"Connection"
#define SLAPI_EXT_OPERATION	"Operation"
#define SLAPI_EXT_ENTRY		"Entry"
#define SLAPI_EXT_MTNODE	"Mapping Tree Node"

void *slapi_get_object_extension(int objecttype, void *object,
	int extensionhandle);
void slapi_set_object_extension(int objecttype, void *object,
	int extensionhandle, void *extension);

/*
 * interface to allow a plugin to register additional plugins.
 */
typedef int (*slapi_plugin_init_fnptr)( Slapi_PBlock *pb );
int slapi_register_plugin( const char *plugintype, int enabled,
	const char *initsymbol, slapi_plugin_init_fnptr initfunc,
	const char *name, char **argv, void *group_identity);


/*
 * logging
 */
int slapi_log_error( int severity, char *subsystem, char *fmt, ... )
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 3, 4)));
#else
        ;
#endif

/* allowed values for the "severity" parameter */
#define SLAPI_LOG_FATAL          	0
#define SLAPI_LOG_TRACE			1
#define SLAPI_LOG_PACKETS		2
#define SLAPI_LOG_ARGS			3
#define SLAPI_LOG_CONNS			4
#define SLAPI_LOG_BER			5
#define SLAPI_LOG_FILTER		6
#define SLAPI_LOG_CONFIG		7
#define SLAPI_LOG_ACL			8
#define SLAPI_LOG_SHELL			9
#define SLAPI_LOG_PARSE			10
#define SLAPI_LOG_HOUSE			11
#define SLAPI_LOG_REPL			12
#define SLAPI_LOG_CACHE			13
#define SLAPI_LOG_PLUGIN		14
#define SLAPI_LOG_TIMING		15
#define SLAPI_LOG_ACLSUMMARY		16

int slapi_is_loglevel_set( const int loglevel );


/*
 * locks and synchronization
 */
typedef struct slapi_mutex	Slapi_Mutex;
typedef struct slapi_condvar	Slapi_CondVar;
Slapi_Mutex *slapi_new_mutex( void );
void slapi_destroy_mutex( Slapi_Mutex *mutex );
void slapi_lock_mutex( Slapi_Mutex *mutex );
int slapi_unlock_mutex( Slapi_Mutex *mutex );
Slapi_CondVar *slapi_new_condvar( Slapi_Mutex *mutex );
void slapi_destroy_condvar( Slapi_CondVar *cvar );
int slapi_wait_condvar( Slapi_CondVar *cvar, struct timeval *timeout );
int slapi_notify_condvar( Slapi_CondVar *cvar, int notify_all );


/*
 * thread-safe LDAP connections
 */
LDAP *slapi_ldap_init( char *ldaphost, int ldapport, int secure, int shared );
void slapi_ldap_unbind( LDAP *ld );
LDAP *
slapi_ldap_init_ext(
    const char *ldapurl, /* full ldap url */
    const char *hostname, /* can also use this to override
                             host in url */
    int port, /* can also use this to override port in url */
    int secure, /* 0 for ldap, 1 for ldaps, 2 for starttls -
                   override proto in url */
    int shared, /* if true, LDAP* will be shared among multiple threads */
    const char *filename /* for ldapi */
);
int
slapi_ldap_bind(
    LDAP *ld, /* ldap connection */
    const char *bindid, /* usually a bind DN for simple bind */
    const char *creds, /* usually a password for simple bind */
    const char *mech, /* name of mechanism */
    LDAPControl **serverctrls, /* additional controls to send */
    LDAPControl ***returnedctrls, /* returned controls */
    struct timeval *timeout, /* timeout */
    int *msgidp /* pass in non-NULL for async handling */
);


/*
 * computed attributes
 */
struct _computed_attr_context;
typedef struct _computed_attr_context computed_attr_context; 
typedef int (*slapi_compute_output_t)(computed_attr_context *c,Slapi_Attr *a , Slapi_Entry *e);
typedef int (*slapi_compute_callback_t)(computed_attr_context *c,char* type,Slapi_Entry *e,slapi_compute_output_t outputfn);
typedef int (*slapi_search_rewrite_callback_t)(Slapi_PBlock *pb);
int slapi_compute_add_evaluator(slapi_compute_callback_t function);
int slapi_compute_add_search_rewriter(slapi_search_rewrite_callback_t function);
int	compute_rewrite_search_filter(Slapi_PBlock *pb);


/*
 * routines for dealing with backends
 */
Slapi_Backend *slapi_be_new( const char *type, const char *name,
	int isprivate, int logchanges );
void slapi_be_free(Slapi_Backend **be);
Slapi_Backend *slapi_be_select( const Slapi_DN *sdn );
Slapi_Backend *slapi_be_select_by_instance_name( const char *name );
int slapi_be_exist(const Slapi_DN *sdn);
void slapi_be_delete_onexit(Slapi_Backend *be);
void slapi_be_set_readonly(Slapi_Backend *be, int readonly);
int slapi_be_get_readonly(Slapi_Backend *be);
int slapi_be_getentrypoint(Slapi_Backend *be, int entrypoint, void **ret_fnptr,
                           Slapi_PBlock *pb);
int slapi_be_setentrypoint(Slapi_Backend *be, int entrypoint, void *ret_fnptr, 
			   Slapi_PBlock *pb);
int slapi_be_logchanges(Slapi_Backend *be);
int slapi_be_issuffix(const Slapi_Backend *be, const Slapi_DN *suffix );
void slapi_be_addsuffix(Slapi_Backend *be,const Slapi_DN *suffix);
char * slapi_be_get_name(Slapi_Backend * be);
const Slapi_DN *slapi_be_getsuffix(Slapi_Backend *be, int n);
Slapi_Backend* slapi_get_first_backend(char **cookie);
Slapi_Backend* slapi_get_next_backend(char *cookie);
int slapi_be_private( Slapi_Backend *be );
void * slapi_be_get_instance_info(Slapi_Backend * be);
void  slapi_be_set_instance_info(Slapi_Backend * be, void * data);
Slapi_DN * slapi_get_first_suffix(void ** node, int show_private);
Slapi_DN * slapi_get_next_suffix(void ** node, int show_private);
int slapi_is_root_suffix(Slapi_DN * dn);
const char * slapi_be_gettype(Slapi_Backend *be);

int slapi_be_is_flag_set(Slapi_Backend * be, int flag);
void slapi_be_set_flag(Slapi_Backend * be, int flag);
#define SLAPI_BE_FLAG_REMOTE_DATA   0x1  /* entries held by backend are remote */
#define SLAPI_BE_FLAG_DONT_BYPASS_FILTERTEST   0x10  /* force to call filter_test (search only) */


/* These functions allow a plugin to register for callback when
 * a backend state change
 */
typedef void (*slapi_backend_state_change_fnptr)(void *handle, char *be_name,
	 int old_be_state, int new_be_state);
void slapi_register_backend_state_change(void * handle, slapi_backend_state_change_fnptr funct);
int slapi_unregister_backend_state_change(void * handle);
#define	SLAPI_BE_STATE_ON       1	/* backend is ON */
#define	SLAPI_BE_STATE_OFFLINE 	2	/* backend is OFFLINE (import process) */
#define	SLAPI_BE_STATE_DELETE 	3	/* backend has been deleted */

/*
 * Distribution.
 */
/* SLAPI_BE_ALL_BACKENDS is a special value that is returned by
 * a distribution plugin function to indicate that all backends
 * should be searched (it is only used for search operations).
 */
#define SLAPI_BE_ALL_BACKENDS			-1



/*
 * virtual attribute service
 */

/* General flags (flags parameter) */
#define SLAPI_REALATTRS_ONLY						1
#define SLAPI_VIRTUALATTRS_ONLY						2
#define SLAPI_VIRTUALATTRS_REQUEST_POINTERS			4 /* I want to receive pointers into the entry, if possible */
#define  SLAPI_VIRTUALATTRS_LIST_OPERATIONAL_ATTRS	8 /* Include operational attributes in attribute lists */
#define SLAPI_VIRTUALATTRS_SUPPRESS_SUBTYPES		16 /* I want only the requested attribute */

/* Buffer disposition flags (buffer_flags parameter) */
#define SLAPI_VIRTUALATTRS_RETURNED_POINTERS	1
#define SLAPI_VIRTUALATTRS_RETURNED_COPIES	2
#define SLAPI_VIRTUALATTRS_REALATTRS_ONLY       4

/* Attribute type name disposition values (type_name_disposition parameter) */
#define SLAPI_VIRTUALATTRS_TYPE_NAME_MATCHED_EXACTLY_OR_ALIAS	1
#define SLAPI_VIRTUALATTRS_TYPE_NAME_MATCHED_SUBTYPE		2
#define SLAPI_VIRTUALATTRS_NOT_FOUND				-1
#define SLAPI_VIRTUALATTRS_LOOP_DETECTED			-2

typedef struct _vattr_type_thang vattr_type_thang;
typedef struct _vattr_get_thang vattr_get_thang;
vattr_get_thang *slapi_vattr_getthang_first(vattr_get_thang *t);
vattr_get_thang *slapi_vattr_getthang_next(vattr_get_thang *t);

int slapi_vattr_values_type_thang_get(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* attr type */ vattr_type_thang *type_thang,
	/* pointer to result set */ Slapi_ValueSet** results,
	int *type_name_disposition, char **actual_type_name, int flags,
	int *buffer_flags);
int slapi_vattr_values_get(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* attr type name */ char *type,
	/* pointer to result set */ Slapi_ValueSet** results,
	int *type_name_disposition, char **actual_type_name, int flags,
	int *buffer_flags);
int slapi_vattr_values_get_ex(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* attr type name */ char *type,
	/* pointer to result set */ Slapi_ValueSet*** results,
	int **type_name_disposition, char ***actual_type_name, int flags,
	int *buffer_flags, int *subtype_count);
int slapi_vattr_namespace_values_get(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* backend namespace dn */ Slapi_DN *namespace_dn,
	/* attr type name */ char *type,
	/* pointer to result set */ Slapi_ValueSet*** results,
	int **type_name_disposition, char ***actual_type_name, int flags,
	int *buffer_flags, int *subtype_count);
void slapi_vattr_values_free(Slapi_ValueSet **value, char **actual_type_name,
	int flags);
int slapi_vattr_value_compare(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* attr type name */ char *type,
	Slapi_Value *test_this,/* pointer to result */ int *result,
	int flags);
int slapi_vattr_namespace_value_compare(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* backend namespace dn */ Slapi_DN *namespace_dn,
	/* attr type name */ const char *type,
	Slapi_Value *test_this,/* pointer to result */ int *result,
	int flags);
int slapi_vattr_list_attrs(
	/* Entry we're interested in */ Slapi_Entry *e,
	/* pointer to receive the list */ vattr_type_thang **types,
	int flags, int *buffer_flags);
void slapi_vattr_attrs_free(vattr_type_thang **types, int flags);
char *vattr_typethang_get_name(vattr_type_thang *t);
unsigned long vattr_typethang_get_flags(vattr_type_thang *t);
vattr_type_thang *vattr_typethang_next(vattr_type_thang *t);
vattr_type_thang *vattr_typethang_first(vattr_type_thang *t);
int slapi_vattr_schema_check_type(Slapi_Entry *e, char *type);


/* roles */
typedef int (*roles_check_fn_type)(Slapi_Entry *entry_to_check, Slapi_DN *role_dn, int *present);

int slapi_role_check(Slapi_Entry *entry_to_check, Slapi_DN *role_dn, int *present);
void slapi_register_role_check(roles_check_fn_type check_fn);

/* DSE */
/* Front end configuration */
typedef int (*dseCallbackFn)(Slapi_PBlock *, Slapi_Entry *, Slapi_Entry *, 
                             int *, char*, void *);

/*
 * Note: DSE callback functions MUST return one of these three values:
 *
 *   SLAPI_DSE_CALLBACK_OK           -- no errors occurred; apply changes.
 *   SLAPI_DSE_CALLBACK_ERROR        -- an error occurred; don't apply changes.
 *   SLAPI_DSE_CALLBACK_DO_NOT_APPLY -- no error, but do not apply changes.
 *
 * SLAPI_DSE_CALLBACK_DO_NOT_APPLY should only be returned by modify
 * callbacks (i.e., those registered with operation==SLAPI_OPERATION_MODIFY).
 * A return value of SLAPI_DSE_CALLBACK_DO_NOT_APPLY is treated the same as
 * SLAPI_DSE_CALLBACK_ERROR for all other operations.
 */
#define SLAPI_DSE_CALLBACK_OK                   (1)
#define SLAPI_DSE_CALLBACK_ERROR                (-1)
#define SLAPI_DSE_CALLBACK_DO_NOT_APPLY (0)

/*
 * Flags for slapi_config_register_callback() and
 *		slapi_config_remove_callback()
 */
#define DSE_FLAG_PREOP          0x0001
#define DSE_FLAG_POSTOP         0x0002

/* This is the size of the returntext parameter passed to the config callback function,
   which is the "char *" argument to dseCallbackFn above */
#define SLAPI_DSE_RETURNTEXT_SIZE 512	/* for use by callback functions */

int slapi_config_register_callback(int operation, int flags, const char *base, int scope, const char *filter, dseCallbackFn fn, void *fn_arg);
int slapi_config_remove_callback(int operation, int flags, const char *base, int scope, const char *filter, dseCallbackFn fn);

/******************************************************************************
 * Online tasks interface (to support import, export, etc)
 * After some cleanup, we could consider making these public.
 */

/* task states */
#define SLAPI_TASK_SETUP        0
#define SLAPI_TASK_RUNNING      1
#define SLAPI_TASK_FINISHED     2
#define SLAPI_TASK_CANCELLED    3

/* task flag (pb_task_flags)*/
#define SLAPI_TASK_RUNNING_AS_TASK            0x0
#define SLAPI_TASK_RUNNING_FROM_COMMANDLINE   0x1

/* task flags (set by the task-control code) */
#define SLAPI_TASK_DESTROYING   0x01    /* queued event for destruction */

int slapi_task_register_handler(const char *name, dseCallbackFn func);
void slapi_task_begin(Slapi_Task *task, int total_work);
void slapi_task_inc_progress(Slapi_Task *task);
void slapi_task_finish(Slapi_Task *task, int rc);
void slapi_task_cancel(Slapi_Task *task, int rc);
int slapi_task_get_state(Slapi_Task *task);
void slapi_task_set_data(Slapi_Task *task, void *data);
void * slapi_task_get_data(Slapi_Task *task);
void slapi_task_inc_refcount(Slapi_Task *task);
void slapi_task_dec_refcount(Slapi_Task *task);
int slapi_task_get_refcount(Slapi_Task *task);
void slapi_task_set_destructor_fn(Slapi_Task *task, TaskCallbackFn func);
void slapi_task_set_cancel_fn(Slapi_Task *task, TaskCallbackFn func);
void slapi_task_status_changed(Slapi_Task *task);
void slapi_task_log_status(Slapi_Task *task, char *format, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 2, 3)));
#else
        ;
#endif

void slapi_task_log_notice(Slapi_Task *task, char *format, ...)
#ifdef __GNUC__ 
        __attribute__ ((format (printf, 2, 3)));
#else
        ;
#endif

/*
 * slapi_new_task: create new task, fill in DN, and setup modify callback
 * argument:
 *     dn: task dn
 * result:
 *     Success: Slapi_Task object
 *     Failure: NULL
 */
Slapi_Task *slapi_new_task(const char *dn);

/* slapi_destroy_task: destroy a task
 * argument:
 *     task: task to destroy
 * result:
 *     none
 */
void slapi_destroy_task(void *arg);
/* End of interface to support online tasks **********************************/

/* Slapi_Counter Interface */
Slapi_Counter *slapi_counter_new();
void slapi_counter_init(Slapi_Counter *counter);
void slapi_counter_destroy(Slapi_Counter **counter);
PRUint64 slapi_counter_increment(Slapi_Counter *counter);
PRUint64 slapi_counter_decrement(Slapi_Counter *counter);
PRUint64 slapi_counter_add(Slapi_Counter *counter, PRUint64 addvalue);
PRUint64 slapi_counter_subtract(Slapi_Counter *counter, PRUint64 subvalue);
PRUint64 slapi_counter_set_value(Slapi_Counter *counter, PRUint64 newvalue);
PRUint64 slapi_counter_get_value(Slapi_Counter *counter);

/* Binder-based (connection centric) resource limits */
/*
 * Valid values for `type' parameter to slapi_reslimit_register().
 */		
#define SLAPI_RESLIMIT_TYPE_INT				0

/*
 * Status codes returned by all functions.
 */
#define SLAPI_RESLIMIT_STATUS_SUCCESS		0	/* goodness */
#define SLAPI_RESLIMIT_STATUS_NOVALUE		1	/* no value is available */
#define SLAPI_RESLIMIT_STATUS_INIT_FAILURE	2	/* initialization failed */
#define SLAPI_RESLIMIT_STATUS_PARAM_ERROR	3	/* bad parameter */
#define SLAPI_RESLIMIT_STATUS_UNKNOWN_HANDLE	4	/* unregistered handle */
#define SLAPI_RESLIMIT_STATUS_INTERNAL_ERROR	5	/* unexpected error */

/*
 * Functions.
 */
int slapi_reslimit_register( int type, const char *attrname, int *handlep );
int slapi_reslimit_get_integer_limit( Slapi_Connection *conn, int handle,
		int *limitp );
/* END of Binder-based resource limits API */



/*
 * Plugin and parameter block related macros (remainder of this file).
 */

/*
 * Plugin version.  Note that the Directory Server will load version 01
 * and 02 plugins, but some server features require 03 plugins.
 */
#define SLAPI_PLUGIN_VERSION_01		"01"
#define SLAPI_PLUGIN_VERSION_02		"02"
#define SLAPI_PLUGIN_VERSION_03         "03"
#define SLAPI_PLUGIN_CURRENT_VERSION	SLAPI_PLUGIN_VERSION_03
#define SLAPI_PLUGIN_IS_COMPAT(x)	\
	((strcmp((x), SLAPI_PLUGIN_VERSION_01) == 0) ||	\
	 (strcmp((x), SLAPI_PLUGIN_VERSION_02) == 0) || \
	 (strcmp((x), SLAPI_PLUGIN_VERSION_03) == 0))
#define SLAPI_PLUGIN_IS_V2(x)		\
	((strcmp((x)->plg_version, SLAPI_PLUGIN_VERSION_02) == 0) || \
         (strcmp((x)->plg_version, SLAPI_PLUGIN_VERSION_03) == 0))
#define SLAPI_PLUGIN_IS_V3(x)		\
	(strcmp((x)->plg_version, SLAPI_PLUGIN_VERSION_03) == 0)

/* this one just has to be human readable */
#define SLAPI_PLUGIN_SUPPORTED_VERSIONS	"01,02,03"

/*
 * types of plugin interfaces
 */
#define SLAPI_PLUGIN_EXTENDEDOP			2
#define SLAPI_PLUGIN_PREOPERATION		3
#define SLAPI_PLUGIN_POSTOPERATION		4
#define SLAPI_PLUGIN_MATCHINGRULE		5
#define SLAPI_PLUGIN_SYNTAX			6
#define SLAPI_PLUGIN_ACL			7
#define	SLAPI_PLUGIN_BEPREOPERATION		8
#define SLAPI_PLUGIN_BEPOSTOPERATION		9
#define SLAPI_PLUGIN_ENTRY             		10
#define SLAPI_PLUGIN_TYPE_OBJECT       		11
#define SLAPI_PLUGIN_INTERNAL_PREOPERATION	12
#define SLAPI_PLUGIN_INTERNAL_POSTOPERATION	13
#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME		14
#define SLAPI_PLUGIN_VATTR_SP			15
#define SLAPI_PLUGIN_REVER_PWD_STORAGE_SCHEME	16
#define SLAPI_PLUGIN_LDBM_ENTRY_FETCH_STORE	17
#define SLAPI_PLUGIN_INDEX			18

/*
 * special return values for extended operation plugins (zero or positive
 *     return values should be LDAP error codes as defined in ldap.h)
 */
#define SLAPI_PLUGIN_EXTENDED_SENT_RESULT	-1
#define SLAPI_PLUGIN_EXTENDED_NOT_HANDLED	-2

/*
 * the following can be used as the second argument to the
 * slapi_pblock_get() and slapi_pblock_set() calls.
 */

/* backend, connection, operation */
#define SLAPI_BACKEND               130
#define SLAPI_CONNECTION            131
#define SLAPI_OPERATION             132
#define SLAPI_REQUESTOR_ISROOT      133
#define SLAPI_BE_TYPE               135
#define SLAPI_BE_READONLY           136
#define SLAPI_BE_LASTMOD            137
#define SLAPI_CONN_ID               139
#define SLAPI_BACKEND_COUNT         860

/* operation */
#define SLAPI_OPINITIATED_TIME			140
#define SLAPI_REQUESTOR_DN			141
#define SLAPI_OPERATION_PARAMETERS		138
#define SLAPI_OPERATION_TYPE			590
#define SLAPI_OPERATION_AUTHTYPE		741
#define SLAPI_OPERATION_ID			744
#define SLAPI_OPERATION_SSF			750
#define SLAPI_IS_REPLICATED_OPERATION		142
#define SLAPI_IS_MMR_REPLICATED_OPERATION	153
#define SLAPI_IS_LEGACY_REPLICATED_OPERATION	154
#define SLAPI_SKIP_MODIFIED_ATTRS		155

/* connection */
#define SLAPI_CONN_DN        			143
#define SLAPI_CONN_CLIENTNETADDR	850
#define SLAPI_CONN_SERVERNETADDR			851
#define SLAPI_CONN_IS_REPLICATION_SESSION 	149
#define SLAPI_CONN_IS_SSL_SESSION 	747
#define SLAPI_CONN_CERT				743
#define SLAPI_CONN_AUTHMETHOD			746
#define SLAPI_CONN_SASL_SSF			748
#define SLAPI_CONN_SSL_SSF			749

/* 
 * Types of authentication for SLAPI_CONN_AUTHMETHOD
 * (and deprecated SLAPI_CONN_AUTHTYPE)
 */
#define SLAPD_AUTH_NONE   "none"
#define SLAPD_AUTH_SIMPLE "simple"
#define SLAPD_AUTH_SSL    "SSL"
#define SLAPD_AUTH_SASL   "SASL " /* followed by the mechanism name */
#define SLAPD_AUTH_OS     "OS"

/* Command Line Arguments */
#define SLAPI_ARGC				147
#define SLAPI_ARGV				148

/* Slapd config file directory */
#define SLAPI_CONFIG_DIRECTORY			281

/* DSE flags */
#define SLAPI_DSE_DONT_WRITE_WHEN_ADDING	282
#define SLAPI_DSE_MERGE_WHEN_ADDING		283
#define SLAPI_DSE_DONT_CHECK_DUPS		284
#define SLAPI_DSE_REAPPLY_MODS			287
#define SLAPI_DSE_IS_PRIMARY_FILE		289

/* internal schema flags */
#define SLAPI_SCHEMA_FLAGS					285

/* urp flags */
#define SLAPI_URP_NAMING_COLLISION_DN	286
#define SLAPI_URP_TOMBSTONE_UNIQUEID	288

/* common to all plugins */
#define SLAPI_PLUGIN				3
#define SLAPI_PLUGIN_PRIVATE			4
#define SLAPI_PLUGIN_TYPE			5
#define SLAPI_PLUGIN_ARGV			6
#define SLAPI_PLUGIN_ARGC			7
#define SLAPI_PLUGIN_VERSION			8

#define SLAPI_PLUGIN_OPRETURN			9
#define SLAPI_PLUGIN_OBJECT			10
#define SLAPI_PLUGIN_DESTROY_FN			11

#define SLAPI_PLUGIN_DESCRIPTION		12
typedef struct slapi_plugindesc {
	char	*spd_id;
	char	*spd_vendor;
	char	*spd_version;
	char	*spd_description;	
} Slapi_PluginDesc;

#define SLAPI_PLUGIN_IDENTITY                   13

/* common for internal plugin_ops */
#define SLAPI_PLUGIN_INTOP_RESULT		15
#define SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES	16
#define SLAPI_PLUGIN_INTOP_SEARCH_REFERRALS	17

/* miscellaneous plugin functions */
#define SLAPI_PLUGIN_CLOSE_FN			210
#define SLAPI_PLUGIN_START_FN			212
#define	SLAPI_PLUGIN_CLEANUP_FN                 232
#define	SLAPI_PLUGIN_POSTSTART_FN		233


/* extendedop plugin functions */
#define SLAPI_PLUGIN_EXT_OP_FN			300
#define SLAPI_PLUGIN_EXT_OP_OIDLIST		301
#define SLAPI_PLUGIN_EXT_OP_NAMELIST	302

/* preoperation plugin functions */
#define SLAPI_PLUGIN_PRE_BIND_FN		401
#define SLAPI_PLUGIN_PRE_UNBIND_FN		402
#define SLAPI_PLUGIN_PRE_SEARCH_FN		403
#define SLAPI_PLUGIN_PRE_COMPARE_FN		404
#define SLAPI_PLUGIN_PRE_MODIFY_FN		405
#define SLAPI_PLUGIN_PRE_MODRDN_FN		406
#define SLAPI_PLUGIN_PRE_ADD_FN			407
#define SLAPI_PLUGIN_PRE_DELETE_FN		408
#define SLAPI_PLUGIN_PRE_ABANDON_FN		409
#define SLAPI_PLUGIN_PRE_ENTRY_FN		410
#define SLAPI_PLUGIN_PRE_REFERRAL_FN		411
#define SLAPI_PLUGIN_PRE_RESULT_FN		412

/* internal preoperation plugin functions */
#define SLAPI_PLUGIN_INTERNAL_PRE_ADD_FN    	420
#define SLAPI_PLUGIN_INTERNAL_PRE_MODIFY_FN	421
#define SLAPI_PLUGIN_INTERNAL_PRE_MODRDN_FN	422
#define SLAPI_PLUGIN_INTERNAL_PRE_DELETE_FN	423

/* preoperation plugin to the backend */
#define SLAPI_PLUGIN_BE_PRE_ADD_FN		450
#define SLAPI_PLUGIN_BE_PRE_MODIFY_FN		451
#define SLAPI_PLUGIN_BE_PRE_MODRDN_FN		452
#define SLAPI_PLUGIN_BE_PRE_DELETE_FN		453

/* postoperation plugin functions */
#define SLAPI_PLUGIN_POST_BIND_FN		501
#define SLAPI_PLUGIN_POST_UNBIND_FN		502
#define SLAPI_PLUGIN_POST_SEARCH_FN		503
#define SLAPI_PLUGIN_POST_COMPARE_FN		504
#define SLAPI_PLUGIN_POST_MODIFY_FN		505
#define SLAPI_PLUGIN_POST_MODRDN_FN		506
#define SLAPI_PLUGIN_POST_ADD_FN		507
#define SLAPI_PLUGIN_POST_DELETE_FN		508
#define SLAPI_PLUGIN_POST_ABANDON_FN		509
#define SLAPI_PLUGIN_POST_ENTRY_FN		510
#define SLAPI_PLUGIN_POST_REFERRAL_FN		511
#define SLAPI_PLUGIN_POST_RESULT_FN		512
#define SLAPI_PLUGIN_POST_SEARCH_FAIL_FN		513

/* internal preoperation plugin functions */
#define SLAPI_PLUGIN_INTERNAL_POST_ADD_FN   	520
#define SLAPI_PLUGIN_INTERNAL_POST_MODIFY_FN    521
#define SLAPI_PLUGIN_INTERNAL_POST_MODRDN_FN	522
#define SLAPI_PLUGIN_INTERNAL_POST_DELETE_FN	523

/* postoperation plugin to the backend */
#define SLAPI_PLUGIN_BE_POST_ADD_FN		550
#define SLAPI_PLUGIN_BE_POST_MODIFY_FN		551
#define SLAPI_PLUGIN_BE_POST_MODRDN_FN		552
#define SLAPI_PLUGIN_BE_POST_DELETE_FN		553

/* matching rule plugin functions */
#define SLAPI_PLUGIN_MR_FILTER_CREATE_FN	600
#define SLAPI_PLUGIN_MR_INDEXER_CREATE_FN	601
#define SLAPI_PLUGIN_MR_FILTER_MATCH_FN		602
#define SLAPI_PLUGIN_MR_FILTER_INDEX_FN		603
#define SLAPI_PLUGIN_MR_FILTER_RESET_FN		604
#define SLAPI_PLUGIN_MR_INDEX_FN		605

/* matching rule plugin arguments */
#define SLAPI_PLUGIN_MR_OID			610
#define SLAPI_PLUGIN_MR_TYPE			611
#define SLAPI_PLUGIN_MR_VALUE			612
#define SLAPI_PLUGIN_MR_VALUES			613
#define SLAPI_PLUGIN_MR_KEYS			614
#define SLAPI_PLUGIN_MR_FILTER_REUSABLE		615
#define SLAPI_PLUGIN_MR_QUERY_OPERATOR		616
#define SLAPI_PLUGIN_MR_USAGE			617


/* Defined values of SLAPI_PLUGIN_MR_QUERY_OPERATOR: */
#define SLAPI_OP_LESS					1
#define SLAPI_OP_LESS_OR_EQUAL				2
#define SLAPI_OP_EQUAL					3
#define SLAPI_OP_GREATER_OR_EQUAL			4
#define SLAPI_OP_GREATER				5
#define SLAPI_OP_SUBSTRING				6

/* Defined values of SLAPI_PLUGIN_MR_USAGE: */
#define SLAPI_PLUGIN_MR_USAGE_INDEX		0
#define SLAPI_PLUGIN_MR_USAGE_SORT		1

/* Defined values for matchingRuleEntry accessor functions */
#define SLAPI_MATCHINGRULE_NAME                 1
#define SLAPI_MATCHINGRULE_OID                  2
#define SLAPI_MATCHINGRULE_DESC                 3
#define SLAPI_MATCHINGRULE_SYNTAX               4
#define SLAPI_MATCHINGRULE_OBSOLETE             5

/* syntax plugin functions and arguments */
#define SLAPI_PLUGIN_SYNTAX_FILTER_AVA		700
#define SLAPI_PLUGIN_SYNTAX_FILTER_SUB		701
#define SLAPI_PLUGIN_SYNTAX_VALUES2KEYS		702
#define SLAPI_PLUGIN_SYNTAX_ASSERTION2KEYS_AVA	703
#define SLAPI_PLUGIN_SYNTAX_ASSERTION2KEYS_SUB	704
#define SLAPI_PLUGIN_SYNTAX_NAMES		705
#define SLAPI_PLUGIN_SYNTAX_OID			706
#define SLAPI_PLUGIN_SYNTAX_FLAGS		707
#define SLAPI_PLUGIN_SYNTAX_COMPARE		708

/* user defined substrlen; not stored in slapdplugin, but pblock itself */
#define SLAPI_SYNTAX_SUBSTRLENS			709
#define SLAPI_PLUGIN_SYNTAX_VALIDATE		710

/* ACL plugin functions and arguments */
#define SLAPI_PLUGIN_ACL_INIT			730
#define SLAPI_PLUGIN_ACL_SYNTAX_CHECK		731
#define SLAPI_PLUGIN_ACL_ALLOW_ACCESS		732
#define SLAPI_PLUGIN_ACL_MODS_ALLOWED		733
#define SLAPI_PLUGIN_ACL_MODS_UPDATE		734


#define ACLPLUGIN_ACCESS_DEFAULT		0
#define ACLPLUGIN_ACCESS_READ_ON_ENTRY		1
#define ACLPLUGIN_ACCESS_READ_ON_ATTR		2
#define ACLPLUGIN_ACCESS_READ_ON_VLV		3
#define ACLPLUGIN_ACCESS_MODRDN				4
#define ACLPLUGIN_ACCESS_GET_EFFECTIVE_RIGHTS	5

/* Authorization types */
#define SLAPI_BE_MAXNESTLEVEL			742
#define SLAPI_CLIENT_DNS			745

/* Password storage scheme functions and arguments */
#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME_ENC_FN		800
#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME_DEC_FN		801 /* only meaningfull for reversible encryption */
#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME_CMP_FN		802

#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME_NAME		810	/* name of the method: SHA, SSHA... */
#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME_USER_PWD	811	/* value sent over LDAP */
#define SLAPI_PLUGIN_PWD_STORAGE_SCHEME_DB_PWD		812	/* value from the DB */

/* entry fetch and entry store values */
#define SLAPI_PLUGIN_ENTRY_FETCH_FUNC				813 
#define SLAPI_PLUGIN_ENTRY_STORE_FUNC				814
#define SLAPI_PLUGIN_ENABLED						815

/*
 * Defined values of SLAPI_PLUGIN_SYNTAX_FLAGS:
 */
#define SLAPI_PLUGIN_SYNTAX_FLAG_ORKEYS			1
#define SLAPI_PLUGIN_SYNTAX_FLAG_ORDERING		2

/* controls we know about */
#define SLAPI_MANAGEDSAIT       		1000
#define SLAPI_PWPOLICY          		1001

/* arguments that are common to all operation */
#define SLAPI_TARGET_ADDRESS			48	/* target address (dn + uniqueid) should be normalized */
#define SLAPI_TARGET_UNIQUEID			49	/* target uniqueid of the operation */
#define SLAPI_TARGET_DN				50	/* target dn of the operation should be normalized */
#define SLAPI_REQCONTROLS			51	/* request controls */

/* Copies of entry before and after add, mod, mod[r]dn operations */
#define	SLAPI_ENTRY_PRE_OP			52
#define	SLAPI_ENTRY_POST_OP			53
/* a PRE_ENTRY_FN may alter the entry to be returned to the client -
   SLAPI_SEARCH_ORIG_ENTRY holds the original entry from
   the database - this must not be changed
   SLAPI_SEARCH_ENTRY_COPY holds a copy of the original entry that
   has been modified by the plugin - this will be NULL by default -
   if a plugin needs to modify the entry, it should first check to
   see if there is already a SLAPI_SEARCH_ENTRY_COPY - if not, the
   plugin must use slapi_entry_dup() or similar to make a copy, edit
   the copy, then store it in SLAPI_SEARCH_ENTRY_COPY - the internal
   server code will free SLAPI_SEARCH_ENTRY_COPY
*/
#define	SLAPI_SEARCH_ENTRY_ORIG		SLAPI_ENTRY_PRE_OP
#define	SLAPI_SEARCH_ENTRY_COPY		SLAPI_ENTRY_POST_OP

/* LDAPv3 controls to be sent with the operation result */
#define SLAPI_RESCONTROLS			55
#define SLAPI_ADD_RESCONTROL			56	/* add result control */

/* Extra notes to be logged within access log RESULT lines */
#define SLAPI_OPERATION_NOTES			57
#define SLAPI_OP_NOTE_UNINDEXED		0x01

/* Allows controls to be passed before operation object is created */
#define SLAPI_CONTROLS_ARG			58

/* specify whether pblock content should be destroyed when the pblock is destroyed */
#define SLAPI_DESTROY_CONTENT       		59

/* add arguments */
#define SLAPI_ADD_TARGET			SLAPI_TARGET_DN
#define SLAPI_ADD_ENTRY				60
#define SLAPI_ADD_EXISTING_DN_ENTRY		61
#define SLAPI_ADD_PARENT_ENTRY      		62
#define SLAPI_ADD_PARENT_UNIQUEID		63
#define SLAPI_ADD_EXISTING_UNIQUEID_ENTRY	64

/* bind arguments */
#define SLAPI_BIND_TARGET			SLAPI_TARGET_DN
#define SLAPI_BIND_METHOD			70
#define SLAPI_BIND_CREDENTIALS			71	/* v3 only */
#define SLAPI_BIND_SASLMECHANISM		72	/* v3 only */
/* bind return values */
#define SLAPI_BIND_RET_SASLCREDS		73	/* v3 only */

/* compare arguments */
#define SLAPI_COMPARE_TARGET			SLAPI_TARGET_DN
#define SLAPI_COMPARE_TYPE			80
#define SLAPI_COMPARE_VALUE			81

/* delete arguments */
#define SLAPI_DELETE_TARGET			SLAPI_TARGET_DN
#define SLAPI_DELETE_EXISTING_ENTRY		SLAPI_ADD_EXISTING_DN_ENTRY
#define SLAPI_DELETE_GLUE_PARENT_ENTRY	SLAPI_ADD_PARENT_ENTRY
#define SLAPI_DELETE_BEPREOP_ENTRY			SLAPI_ENTRY_PRE_OP

/* modify arguments */
#define SLAPI_MODIFY_TARGET			SLAPI_TARGET_DN
#define SLAPI_MODIFY_MODS			90
#define SLAPI_MODIFY_EXISTING_ENTRY		SLAPI_ADD_EXISTING_DN_ENTRY

/* modrdn arguments */
#define SLAPI_MODRDN_TARGET			SLAPI_TARGET_DN
#define SLAPI_MODRDN_NEWRDN			100
#define SLAPI_MODRDN_DELOLDRDN			101
#define SLAPI_MODRDN_NEWSUPERIOR        	102	/* v3 only */
#define SLAPI_MODRDN_EXISTING_ENTRY     	SLAPI_ADD_EXISTING_DN_ENTRY
#define SLAPI_MODRDN_PARENT_ENTRY       	104
#define SLAPI_MODRDN_NEWPARENT_ENTRY    	105
#define SLAPI_MODRDN_TARGET_ENTRY       	106
#define SLAPI_MODRDN_NEWSUPERIOR_ADDRESS	107

/* 
 * unnormalized dn argument (useful for MOD, MODRDN and DEL operations to carry 
 * the original non-escaped dn as introduced by the client application)
 */
#define SLAPI_ORIGINAL_TARGET_DN		109
#define SLAPI_ORIGINAL_TARGET			SLAPI_ORIGINAL_TARGET_DN

/* search arguments */
#define SLAPI_SEARCH_TARGET         SLAPI_TARGET_DN
#define SLAPI_SEARCH_SCOPE          110
#define SLAPI_SEARCH_DEREF          111
#define SLAPI_SEARCH_SIZELIMIT      112
#define SLAPI_SEARCH_TIMELIMIT      113
#define SLAPI_SEARCH_FILTER         114
#define SLAPI_SEARCH_STRFILTER      115
#define SLAPI_SEARCH_ATTRS          116
#define SLAPI_SEARCH_GERATTRS       1160
#define SLAPI_SEARCH_ATTRSONLY      117
#define SLAPI_SEARCH_IS_AND         118

/* abandon arguments */
#define SLAPI_ABANDON_MSGID			120

/* seq access arguments */
#define SLAPI_SEQ_TYPE				150
#define SLAPI_SEQ_ATTRNAME			151
#define SLAPI_SEQ_VAL				152

/* extended operation arguments */
#define SLAPI_EXT_OP_REQ_OID			160	/* v3 only */
#define SLAPI_EXT_OP_REQ_VALUE			161	/* v3 only */
/* extended operation return values */
#define SLAPI_EXT_OP_RET_OID			162	/* v3 only */
#define SLAPI_EXT_OP_RET_VALUE			163	/* v3 only */

/* extended filter arguments */
#define SLAPI_MR_FILTER_ENTRY			170	/* v3 only */
#define SLAPI_MR_FILTER_TYPE			171	/* v3 only */
#define SLAPI_MR_FILTER_VALUE			172	/* v3 only */
#define SLAPI_MR_FILTER_OID			173	/* v3 only */
#define SLAPI_MR_FILTER_DNATTRS			174	/* v3 only */

/* ldif2db arguments */
/* ldif file to convert to db */
#define SLAPI_LDIF2DB_FILE			180
/* check for duplicate values or not */
#define SLAPI_LDIF2DB_REMOVEDUPVALS		185
/* index only this attribute from existing database */
#define SLAPI_DB2INDEX_ATTRS			186
/* do not generate attribute indexes */
#define SLAPI_LDIF2DB_NOATTRINDEXES		187
/* list if DNs to include */
#define SLAPI_LDIF2DB_INCLUDE			188
/* list of DNs to exclude */
#define SLAPI_LDIF2DB_EXCLUDE			189
/* generate uniqueid */
#define SLAPI_LDIF2DB_GENERATE_UNIQUEID		175
#define SLAPI_LDIF2DB_NAMESPACEID       	177
#define SLAPI_LDIF2DB_ENCRYPT		303
#define SLAPI_DB2LDIF_DECRYPT		304
/* uniqueid generation options */
#define SLAPI_UNIQUEID_GENERATE_NONE		0	/* do not generate */
#define SLAPI_UNIQUEID_GENERATE_TIME_BASED	1	/* generate time based id */
#define SLAPI_UNIQUEID_GENERATE_NAME_BASED	2	/* generate name based id */

/* db2ldif arguments */
/* print keys or not in ldif */
#define SLAPI_DB2LDIF_PRINTKEY			183
/* filename to export */
#define SLAPI_DB2LDIF_FILE			184
/* dump uniqueid */
#define SLAPI_DB2LDIF_DUMP_UNIQUEID		176
#define SLAPI_DB2LDIF_SERVER_RUNNING	197

/* db2ldif/ldif2db/bak2db/db2bak arguments */
#define SLAPI_BACKEND_INSTANCE_NAME             178
#define SLAPI_BACKEND_TASK                      179
#define SLAPI_TASK_FLAGS                      	181

/* bulk import (online wire import) */
#define SLAPI_BULK_IMPORT_ENTRY                 182
#define SLAPI_BULK_IMPORT_STATE                 192
/* the actual states (these are not pblock args) */
#define SLAPI_BI_STATE_START    1
#define SLAPI_BI_STATE_DONE     2
#define SLAPI_BI_STATE_ADD      3
/* possible error codes from a bulk import */
#define SLAPI_BI_ERR_BUSY	-23	/* backend is busy; try later */

/* transaction arguments */
#define SLAPI_PARENT_TXN			190
#define SLAPI_TXN				191

/*
 * The following are used to pass information back and forth
 * between the front end and the back end.  The backend
 * creates a search result set as an opaque structure and
 * passes a reference to this back to the front end.  The
 * front end uses the backend's iterator entry point to
 * step through the results.  The entry, nentries, and
 * referrals options, below, are set/read by both the
 * front end and back end while stepping through the
 * search results.
 */
/* Search result set */
#define SLAPI_SEARCH_RESULT_SET			193
/* Search result - next entry returned from search result set */
#define	SLAPI_SEARCH_RESULT_ENTRY		194
#define SLAPI_SEARCH_RESULT_ENTRY_EXT           1944
/* Number of entries returned from search */
#define	SLAPI_NENTRIES				195
/* Any referrals encountered during the search */
#define SLAPI_SEARCH_REFERRALS			196
/* for search operations, allows plugins to provide
   controls to pass for each entry or referral returned
   corresponds to pb_search_ctrls */
#define SLAPI_SEARCH_CTRLS			198

#define SLAPI_RESULT_CODE			881
#define SLAPI_RESULT_TEXT			882
#define SLAPI_RESULT_MATCHED			883

#define SLAPI_PB_RESULT_TEXT			885

/* Size of the database, in kilobytes */
#define SLAPI_DBSIZE				199

/* convenience macros for checking modify operation types */
#define SLAPI_IS_MOD_ADD(x) (((x) & ~LDAP_MOD_BVALUES) == LDAP_MOD_ADD)
#define SLAPI_IS_MOD_DELETE(x) (((x) & ~LDAP_MOD_BVALUES) == LDAP_MOD_DELETE)
#define SLAPI_IS_MOD_REPLACE(x) (((x) & ~LDAP_MOD_BVALUES) == LDAP_MOD_REPLACE)

/* regex.c */
typedef struct slapi_regex_handle Slapi_Regex;

/**
 * Compiles a regular expression pattern. A thin wrapper of pcre_compile.
 *
 * \param pat Pattern to be compiled.
 * \param error The error string is set if the compile fails.
 * \return This function returns a pointer to the regex handler which stores
 * the compiled pattern. NULL if the compile fails.
 * \warning The regex handler should be released by slapi_re_free().
 */
Slapi_Regex *slapi_re_comp( const char *pat, const char **error );
/**
 * Matches a compiled regular expression pattern against a given string.
 * A thin wrapper of pcre_exec.
 *
 * \param re_handle The regex handler returned from slapi_re_comp.
 * \param subject A string to be checked against the compiled pattern.
 * \param time_up If the current time is larger than the value, this function
 * returns immediately.  (-1) means no time limit.
 * \return This function returns 0 if the string did not match.
 * \return This function returns 1 if the string matched.
 * \return This function returns other values if any error occurred.
 * \warning The regex handler should be released by slapi_re_free().
 */
int slapi_re_exec( Slapi_Regex *re_handle, const char *subject, time_t time_up );
/**
 * Substitutes '&' or '\#' in the param src with the matched string.
 *
 * \param re_handle The regex handler returned from slapi_re_comp.
 * \param subject A string checked against the compiled pattern.
 * \param src A given string which could contain the substitution symbols.
 * \param dst A pointer pointing to the memory which stores the output string.
 * \param dstlen Size of the memory dst.
 * \return This function returns 1 if the substitution was successful.
 * \return This function returns 0 if the substitution failed.
 * \warning The regex handler should be released by slapi_re_free().
 */
int slapi_re_subs( Slapi_Regex *re_handle, const char *subject, const char *src, char **dst, unsigned long dstlen );
/**
 * Releases the regex handler which was returned from slapi_re_comp.
 *
 * \param re_handle The regex handler to be released.
 * \return nothing
 */
void slapi_re_free(Slapi_Regex *re_handle);

/* wrap non-portable LDAP API functions */
void slapi_ldap_value_free(char **vals);
int slapi_ldap_count_values(char **vals);
int slapi_ldap_url_parse(const char *url, LDAPURLDesc **ludpp, int require_dn, int *secure);
const char *slapi_urlparse_err2string(int err);
int slapi_ldap_get_lderrno(LDAP *ld, char **m, char **s);
#ifndef LDIF_OPT_NOWRAP
#define LDIF_OPT_NOWRAP			0x01UL
#endif
#ifndef LDIF_OPT_VALUE_IS_URL
#define LDIF_OPT_VALUE_IS_URL		0x02UL
#endif
#ifndef LDIF_OPT_MINIMAL_ENCODING
#define LDIF_OPT_MINIMAL_ENCODING	0x04UL
#endif
void slapi_ldif_put_type_and_value_with_options( char **out, const char *t, const char *val, int vlen, unsigned long options );

#if defined(USE_OPENLDAP)
/*
 * UTF-8 routines (should these move into libnls?)
 */
/* number of bytes in character */
int ldap_utf8len( const char* );
/* find next character */
char *ldap_utf8next( char* );
/* find previous character */
char *ldap_utf8prev( char* );
/* copy one character */
int ldap_utf8copy( char* dst, const char* src );
/* total number of characters */
size_t ldap_utf8characters( const char* );
/* get one UCS-4 character, and move *src to the next character */
unsigned long ldap_utf8getcc( const char** src );
/* UTF-8 aware strtok_r() */
char *ldap_utf8strtok_r( char* src, const char* brk, char** next);

/* like isalnum(*s) in the C locale */
int ldap_utf8isalnum( char* s );
/* like isalpha(*s) in the C locale */
int ldap_utf8isalpha( char* s );
/* like isdigit(*s) in the C locale */
int ldap_utf8isdigit( char* s );
/* like isxdigit(*s) in the C locale */
int ldap_utf8isxdigit(char* s );
/* like isspace(*s) in the C locale */
int ldap_utf8isspace( char* s );

#define LDAP_UTF8LEN(s)  ((0x80 & *(unsigned char*)(s)) ?   ldap_utf8len (s) : 1)
#define LDAP_UTF8NEXT(s) ((0x80 & *(unsigned char*)(s)) ?   ldap_utf8next(s) : ( s)+1)
#define LDAP_UTF8INC(s)  ((0x80 & *(unsigned char*)(s)) ? s=ldap_utf8next(s) : ++s)

#define LDAP_UTF8PREV(s)   ldap_utf8prev(s)
#define LDAP_UTF8DEC(s) (s=ldap_utf8prev(s))

#define LDAP_UTF8COPY(d,s) ((0x80 & *(unsigned char*)(s)) ? ldap_utf8copy(d,s) : ((*(d) = *(s)), 1))
#define LDAP_UTF8GETCC(s) ((0x80 & *(unsigned char*)(s)) ? ldap_utf8getcc (&s) : *s++)
#define LDAP_UTF8GETC(s) ((0x80 & *(unsigned char*)(s)) ? ldap_utf8getcc ((const char**)&s) : *s++)
#endif /* USE_OPENLDAP */

/* by default will allow dups */
char **slapi_str2charray( char *str, char *brkstr );
/*
 * extended version of str2charray lets you disallow
 * duplicate values into the array.
 */
char **slapi_str2charray_ext( char *str, char *brkstr, int allow_dups );

#ifndef LDAP_PORT_MAX
#define LDAP_PORT_MAX           65535           /* API extension */
#endif

#ifndef LDAP_ALL_USER_ATTRS
#ifdef LDAP_ALL_USER_ATTRIBUTES
#define LDAP_ALL_USER_ATTRS LDAP_ALL_USER_ATTRIBUTES
#else
#define LDAP_ALL_USER_ATTRS "*"
#endif
#endif

#ifndef LDAP_SASL_EXTERNAL
#define LDAP_SASL_EXTERNAL      "EXTERNAL"      /* TLS/SSL extension */
#endif

#ifndef LBER_SOCKET
#ifdef LBER_SOCKET_T
#define LBER_SOCKET LBER_SOCKET_T
#else
#define LBER_SOCKET int
#endif
#endif

/**
 * Set given "type: value" to the plugin default config entry
 * (cn=plugin default config,cn=config) unless the same "type: value" pair
 * already exists in the entry.
 *
 * \param type Attribute type to add to the default config entry
 * \param value Attribute value to add to the default config entry
 * \return 0 if the operation was successful
 * \return non-0 if the operation was not successful
 */
int slapi_set_plugin_default_config(const char *type, Slapi_Value *value);

/**
 * Get attribute values of given type from the plugin default config entry
 * (cn=plugin default config,cn=config).
 *
 * \param type Attribute type to get from the default config entry
 * \param valueset Valueset holding the attribute values
 * \return 0 if the operation was successful
 * \return non-0 if the operation was not successful
 * \warning Caller is responsible to free attrs by slapi_ch_array_free
 *     */
int slapi_get_plugin_default_config(char *type, Slapi_ValueSet **valueset);

#ifdef __cplusplus
}
#endif

#endif /* _SLAPIPLUGIN */