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

/** BEGIN COPYRIGHT BLOCK
 * Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
 * Copyright (C) 2005 Red Hat, Inc.
 * All rights reserved.
 * END COPYRIGHT BLOCK **/
/* slapi-private.h - external header file for some special plugins */

#ifndef _SLAPISTATE
#define _SLAPISTATE

#ifdef __cplusplus
extern "C" {
#endif

#include <time.h>		/* for time_t */
#include "nspr.h"
#include "slapi-plugin.h"
/*
 * XXXmcs: we can stop including slapi-plugin-compat4.h once we stop using
 * deprecated functions internally.
 */
#include "slapi-plugin-compat4.h"

/*
 * server shutdown status
 */
#define SLAPI_SHUTDOWN_SIGNAL   1
#define SLAPI_SHUTDOWN_DISKFULL 2
#define SLAPI_SHUTDOWN_EXIT     3

/* filter */
#define SLAPI_FILTER_LDAPSUBENTRY 1
#define SLAPI_FILTER_TOMBSTONE 2
#define SLAPI_ENTRY_LDAPSUBENTRY 2

/*
    Optimized filter path. For example the following code was lifted from int.c (syntaxes plugin):

    if(ftype == LDAP_FILTER_EQUALITY_FAST) {
        tmp=(char *)slapi_ch_calloc(1,(sizeof(Slapi_Value)+sizeof(struct berval)+len+1)); 
        tmpval=(Slapi_Value *)tmp;
        tmpbv=(struct berval *)(tmp + sizeof(Slapi_Value));
        tmpbv->bv_val=(char *)tmp + sizeof(Slapi_Value) + (sizeof(struct berval));
        tmpbv->bv_len=len;
        tmpval->bvp=tmpbv;
        b = (unsigned char *)&num;
        memcpy(tmpbv->bv_val,b,len);
        (*ivals)=(Slapi_Value **)tmpval;
    }

    The following diagram helps explain the strategy.

    +---------------------------------------------------------------+
    |             Single contiguous allocated block                 |
    +------------------------+------------------------+-------------+
    | Slapi_Value            | struct berval          | octetstring |
    +----------------+-------+------------------------+-------------+
    | struct berval* |  ...  |  ...    | char *bv_val |  <value>    |
    |       v        |       |         |      v       |             |
    +-------+--------+-------+---------+------+-------+-------------+
            |                 ^               |        ^
            |_________________|               |________|

    The goal is to malloc one large chunk of memory up front and then manipulate the pointers to point
    into this chunk. We then can free the whole block at once by calling a single slapi_ch_free (see filterindex.c).

 */
#define LDAP_FILTER_EQUALITY_FAST 0xaaL
/*
 * Slapi_Mods and Slapi_Mod base structures.
 * Ideally, these would be moved to modutil.c and the structures would be
 * completely opaque to users of the slapi_mods_...() API.  But today some
 * plugins such as replication use these directly for efficiency reasons.
 */
typedef struct slapi_mods
{
    LDAPMod **mods;
	int num_elements;
	int num_mods;
	int iterator;
	int free_mods; /* flag to indicate that the mods were dynamically allocated and needs to be freed */
}slapi_mods;

typedef struct slapi_mod
{
    LDAPMod *mod;
	int num_elements;
	int num_values;
	int iterator;
	int free_mod; /* flag to inidicate that the mod was dynamically allocated and needs to be freed */
}slapi_mod;

void slapi_ch_free_ref(void *ptr);

/*
 * file I/O
 */
PRInt32 slapi_read_buffer( PRFileDesc *fd, void *buf, PRInt32 amount );
PRInt32 slapi_write_buffer( PRFileDesc *fd, void *buf, PRInt32 amount );
/* rename a file, overwriting the destfilename if it exists */
int slapi_destructive_rename( const char *srcfilename,
	const char *destfilename );
/* make a copy of a file */
int slapi_copy( const char *srcfilename, const char *destfile );

/* CSN */

typedef struct csn CSN;
typedef unsigned char CSNType;
typedef struct csnset_node CSNSet;

#define _CSN_TSTAMP_STRSIZE 8
#define _CSN_SEQNUM_STRSIZE 4
#define _CSN_REPLID_STRSIZE 4
#define _CSN_SUBSEQNUM_STRSIZE 4
#define _CSN_VALIDCSN_STRLEN (_CSN_TSTAMP_STRSIZE + _CSN_SEQNUM_STRSIZE + \
                             _CSN_REPLID_STRSIZE + _CSN_SUBSEQNUM_STRSIZE)
#define CSN_STRSIZE (_CSN_VALIDCSN_STRLEN + 1)

#define CSN_TYPE_UNKNOWN 0x00
#define CSN_TYPE_NONE 0x01
#define CSN_TYPE_ATTRIBUTE_DELETED 0x03
#define CSN_TYPE_VALUE_UPDATED 0x04
#define CSN_TYPE_VALUE_DELETED 0x05
#define CSN_TYPE_VALUE_DISTINGUISHED 0x06

#define VALUE_NOTFOUND 1
#define VALUE_PRESENT 2
#define VALUE_DELETED 3

#define ATTRIBUTE_NOTFOUND 1
#define ATTRIBUTE_PRESENT 2
#define ATTRIBUTE_DELETED 3

/*
 * csn.c
 */
typedef PRUint16 ReplicaId;
/* max 2 byte unsigned int value */
#define MAX_REPLICA_ID 65535
/* we will use this value for the replica ID of read only replicas */
#define READ_ONLY_REPLICA_ID MAX_REPLICA_ID
CSN *csn_new();
CSN *csn_new_by_string(const char *s);
void csn_init_by_csn(CSN *csn1,const CSN *csn2);
void csn_init_by_string(CSN *csn, const char *s);
CSN *csn_dup(const CSN *csn);
void csn_free(CSN **csn);
void csn_set_replicaid(CSN *csn, ReplicaId rid);
void csn_set_time(CSN *csn, time_t csntime);
void csn_set_seqnum(CSN *csn, PRUint16 seqnum);
ReplicaId csn_get_replicaid(const CSN *csn);
time_t csn_get_time(const CSN *csn);
PRUint16 csn_get_seqnum(const CSN *csn);
char *csn_as_string(const CSN *csn, PRBool replicaIdOrder, char *ss); /* WARNING: ss must be CSN_STRSIZE bytes, or NULL. */
int csn_compare(const CSN *csn1, const CSN *csn2);
time_t csn_time_difference(const CSN *csn1, const CSN *csn2);
size_t csn_string_size();
char *csn_as_attr_option_string(CSNType t,const CSN *csn,char *ss);
const CSN *csn_max(const CSN *csn1,const CSN *csn2);
/* this function allows to expand a csn into a set of csns. 
   The sequence is derived by adding a sequence number to the base csn
   passed to it. This is useful when a single client operation needs to be
   expanded into multiple operations. For instance, subtree move operation
   is split into a sequence of adds and deletes with each add and delete assigned
   a csn from the set.*/
int csn_increment_subsequence (CSN *csn);

/*
 * csnset.c
 */
void csnset_add_csn(CSNSet **csnset, CSNType t, const CSN *csn);
void csnset_insert_csn(CSNSet **csnset, CSNType t, const CSN *csn);
void csnset_update_csn(CSNSet **csnset, CSNType t, const CSN *csn);
void csnset_free(CSNSet **csnset);
const CSN *csnset_get_csn_of_type(const CSNSet *csnset, CSNType t);
void csnset_purge(CSNSet **csnset, const CSN *csnUpTo);
size_t csnset_string_size(CSNSet *csnset);
size_t csnset_size(CSNSet *csnset);
CSNSet *csnset_dup(const CSNSet *csnset);
void csnset_as_string(const CSNSet *csnset,char *s);
void csnset_remove_csn(CSNSet **csnset, CSNType t);
const CSN *csnset_get_last_csn(const CSNSet *csnset);
int csnset_contains(const CSNSet *csnset, const CSN *csn);
const CSN *csnset_get_previous_csn(const CSNSet *csnset, const CSN *csn);
void* csnset_get_first_csn (const CSNSet *csnset, CSN **csn, CSNType *t);
void* csnset_get_next_csn (const CSNSet *csnset, void *cookie, CSN **csn, CSNType *t);

/*
 * csngen.c
 */

/* error codes returned from CSN generation routines */
enum { 
    CSN_SUCCESS = 0, 
    CSN_MEMORY_ERROR,		/* memory allocation failed */
    CSN_LIMIT_EXCEEDED,		/* timestamp is way out of sync */ 
    CSN_INVALID_PARAMETER, 	/* invalid function argument */
	CSN_INVALID_FORMAT,		/* invalid state format */
    CSN_LDAP_ERROR,			/* LDAP operation failed */
    CSN_NSPR_ERROR			/* NSPR API failure */
}; 

typedef struct csngen CSNGen;

/* allocates new csn generator */
CSNGen *csngen_new (ReplicaId rid, Slapi_Attr *state);
/* frees csn generator data structure */
void csngen_free (CSNGen **gen);
/* generates new csn. If notify is non-zero, the generator calls
   "generate" functions registered through csngen_register_callbacks call */
int csngen_new_csn (CSNGen *gen, CSN **csn, PRBool notify);
/* this function should be called for csns generated with non-zero notify
   that were unused because the corresponding operation was aborted.
   The function calls "abort" functions registered through
   csngen_register_callbacks call */
void csngen_abort_csn (CSNGen *gen, const CSN *csn);
/* this function should be called when a remote CSN for the same part of
   the dit becomes known to the server (for instance, as part of RUV during
   replication session. In response, the generator would adjust its notion
   of time so that it does not generate smaller csns */
int csngen_adjust_time (CSNGen *gen, const CSN* csn);
/* returns PR_TRUE if the csn was generated by this generator and 
   PR_FALSE otherwise. */
PRBool csngen_is_local_csn(const CSNGen *gen, const CSN *csn);

/* returns current state of the generator so that it can be saved in the DIT */
int csngen_get_state (const CSNGen *gen, Slapi_Mod *state);

typedef void (*GenCSNFn)(const CSN *newCsn, void *cbData);
typedef void (*AbortCSNFn)(const CSN *delCsn, void *cbData);
/* registers callbacks to be called when csn is created or aborted */
void* csngen_register_callbacks(CSNGen *gen, GenCSNFn genFn, void *genArg, 
						        AbortCSNFn abortFn, void *abortArg);
/* unregisters callbacks registered via call to csngenRegisterCallbacks */
void csngen_unregister_callbacks(CSNGen *gen, void *cookie);

/* this functions is periodically called from daemon.c to
   update time used by all generators */
void csngen_update_time ();

/* debugging function */
void csngen_dump_state (const CSNGen *gen);

/* this function tests csn generator */
void csngen_test ();

/*
 * State storage management routines
 *
 *
 */

/*
 * attr_value_find_wsi looks for a particular value (rather, the berval
 * part of the slapi_value v) and returns it in "value". The function
 * returns VALUE_PRESENT, VALUE_DELETED, or VALUE_NOTFOUND.
 */
int attr_value_find_wsi(Slapi_Attr *a, const struct berval *bval, Slapi_Value **value);

/*
 * entry_attr_find_wsi takes an entry and a type and looks for the
 * attribute. If the attribute is found on the list of existing attributes,
 * it is returned in "a" and the function returns ATTRIBUTE_PRESENT. If the attribute is
 * found on the deleted list, "a" is set and the function returns ATTRIBUTE_DELETED.
 * If the attribute is not found on either list, the function returns ATTRIBUTE_NOTFOUND.
 */
int entry_attr_find_wsi(Slapi_Entry *e, const char *type, Slapi_Attr **a);

/*
 * entry_add_present_attribute_wsi adds an attribute to the entry.
 */
int entry_add_present_attribute_wsi(Slapi_Entry *e, Slapi_Attr *a);

/*
 * entry_add_deleted_attribute_wsi adds a deleted attribute to the entry.
 */
int entry_add_deleted_attribute_wsi(Slapi_Entry *e, Slapi_Attr *a);

/*
 * slapi_entry_apply_mods_wsi is similar to slapi_entry_apply_mods. It also
 * handles the state storage information. "csn" is the CSN associated with
 * this modify operation.
 */
int entry_apply_mods_wsi(Slapi_Entry *e, Slapi_Mods *smods, const CSN *csn, int urp);
int entry_first_deleted_attribute( const Slapi_Entry *e, Slapi_Attr **a);
int entry_next_deleted_attribute( const Slapi_Entry *e, Slapi_Attr **a);

/* entry.c */
int entry_apply_mods( Slapi_Entry *e, LDAPMod **mods );

int slapi_entries_diff(Slapi_Entry **old_entries, Slapi_Entry **new_entries, int testall, const char *logging_prestr, const int force_update, void *plg_id);

/* entrywsi.c */
CSN* entry_assign_operation_csn ( Slapi_PBlock *pb, Slapi_Entry *e, Slapi_Entry *parententry );
const CSN *entry_get_maxcsn ( const Slapi_Entry *entry );
void entry_set_maxcsn ( Slapi_Entry *entry, const CSN *csn );
const CSN *entry_get_dncsn(const Slapi_Entry *entry);
const CSNSet *entry_get_dncsnset(const Slapi_Entry *entry);
int entry_add_dncsn(Slapi_Entry *entry, const CSN *csn);
int entry_set_csn(Slapi_Entry *entry, const CSN *csn);
void entry_purge_state_information(Slapi_Entry *entry, const CSN *csnUpto);
void entry_add_rdn_csn(Slapi_Entry *e, const CSN *csn);
/* this adds a csn to the entry's e_dncsnset but makes sure the set is in increasing csn order */
#define ENTRY_DNCSN_INCREASING 0x1 /* for flags below */
int entry_add_dncsn_ext(Slapi_Entry *entry, const CSN *csn, PRUint32 flags);

/* attr.c */
Slapi_Attr *slapi_attr_init_locking_optional(Slapi_Attr *a, const char *type, PRBool use_lock, PRBool ref_count);
int attr_set_csn( Slapi_Attr *a, const CSN *csn);
int attr_set_deletion_csn( Slapi_Attr *a, const CSN *csn);
const CSN *attr_get_deletion_csn(const Slapi_Attr *a);
int attr_first_deleted_value( Slapi_Attr *a, Slapi_Value **v );
int attr_next_deleted_value( Slapi_Attr *a, int hint, Slapi_Value **v);
void attr_purge_state_information(Slapi_Entry *entry, Slapi_Attr *attr, const CSN *csnUpto);
Slapi_Value **attr_get_present_values(const Slapi_Attr *a);
int attr_add_deleted_value(Slapi_Attr *a, const Slapi_Value *v);

/* value.c */
Slapi_Value *value_new(const struct berval *bval, CSNType t, const CSN *csn);
Slapi_Value *value_init(Slapi_Value *v, const struct berval *bval, CSNType t, const CSN *csn);
void value_done(Slapi_Value *v);
Slapi_Value *value_update_csn( Slapi_Value *value, CSNType t, const CSN *csn);
Slapi_Value *value_add_csn( Slapi_Value *value, CSNType t, const CSN *csn);
const CSN *value_get_csn( const Slapi_Value *value, CSNType t );
const CSNSet *value_get_csnset ( const Slapi_Value *value);
Slapi_Value *value_remove_csn( Slapi_Value *value, CSNType t);
int value_contains_csn( const Slapi_Value *value, CSN *csn);

/* dn.c */
/* this functions should only be used for dns allocated on the stack */
Slapi_DN *slapi_sdn_init(Slapi_DN *sdn);
Slapi_DN *slapi_sdn_init_dn_byref(Slapi_DN *sdn,const char *dn);
Slapi_DN *slapi_sdn_init_dn_byval(Slapi_DN *sdn,const char *dn);
Slapi_DN *slapi_sdn_init_dn_passin(Slapi_DN *sdn,const char *dn);
Slapi_DN *slapi_sdn_init_ndn_byref(Slapi_DN *sdn,const char *dn);
Slapi_DN *slapi_sdn_init_ndn_byval(Slapi_DN *sdn,const char *dn);
Slapi_DN *slapi_sdn_init_dn_ndn_byref(Slapi_DN *sdn,const char *dn);

/* filter.c */
int filter_flag_is_set(const Slapi_Filter *f,unsigned char flag);
char *slapi_filter_to_string(const Slapi_Filter *f, char *buffer, size_t bufsize);

/* operation.c */

#define	OP_FLAG_PS			        	0x0001
#define	OP_FLAG_PS_CHANGESONLY			0x0002
#define OP_FLAG_GET_EFFECTIVE_RIGHTS   	0x0004  
#define OP_FLAG_REPLICATED          	0x0008  /* A Replicated Operation */
#define OP_FLAG_REPL_FIXUP          	0x0010  /* A Fixup Operation, generated as a consequence of a Replicated Operation. */
#define OP_FLAG_INTERNAL            	0x0020  /* An operation generated by the core server or a plugin. */ 
#define OP_FLAG_ACTION_LOG_ACCESS		0x0040
#define OP_FLAG_ACTION_LOG_AUDIT		0x0080
#define OP_FLAG_ACTION_SCHEMA_CHECK		0x0100
#define OP_FLAG_ACTION_LOG_CHANGES		0x0200
#define OP_FLAG_ACTION_INVOKE_FOR_REPLOP 	0x0400
#define OP_FLAG_NEVER_CHAIN 			SLAPI_OP_FLAG_NEVER_CHAIN  /* 0x0800 */
#define OP_FLAG_TOMBSTONE_ENTRY          0x1000
#define OP_FLAG_RESURECT_ENTRY           0x2000
#define OP_FLAG_LEGACY_REPLICATION_DN    0x4000 /* Operation done by legacy replication DN */
#define OP_FLAG_ACTION_NOLOG			 0x8000 /* Do not log the entry in audit log or change log */

CSN *operation_get_csn(Slapi_Operation *op);
void operation_set_csn(Slapi_Operation *op,CSN *csn);
void operation_set_flag(Slapi_Operation *op,int flag);
void operation_clear_flag(Slapi_Operation *op,int flag);
int operation_is_flag_set(Slapi_Operation *op,int flag);
unsigned long operation_get_type(Slapi_Operation *op);

/* 
 * From ldap.h
 * #define LDAP_MOD_ADD            0x00
 * #define LDAP_MOD_DELETE         0x01
 * #define LDAP_MOD_REPLACE        0x02
 */
#define LDAP_MOD_IGNORE 0x09


/* dl.c */
typedef struct datalist DataList;

typedef int (*CMPFN) (const void *el1, const void *el2);
typedef void (*FREEFN) (void **);
DataList* dl_new ();
void dl_free (DataList **dl);
void dl_init (DataList *dl, int init_alloc);
void dl_cleanup (DataList *dl, FREEFN freefn);
void dl_add (DataList *dl, void *element);
void dl_add_index(DataList *dl, void *element, int index);
void *dl_replace(const DataList *dl, const void *elementOld, void *elementNew, CMPFN cmpfn, FREEFN freefn);
void *dl_get_first (const DataList *dl, int *cookie);
void *dl_get_next (const DataList *dl, int *cookie);
void *dl_get (const DataList *dl, const void *element, CMPFN cmpfn);
void *dl_delete (DataList *dl, const void *element, CMPFN cmpfn, FREEFN freefn);
int  dl_get_count (const DataList *dl);

struct ava {
	char		*ava_type;
	struct berval	ava_value; /* JCM SLAPI_VALUE! */
	void		*ava_private;	/* data private to syntax handler */
};

typedef enum{
	FILTER_TYPE_SUBSTRING,
	FILTER_TYPE_AVA,
	FILTER_TYPE_PRES	
}filter_type_t;

/*
 * vattr entry routines.
 * vattrcache private (for the moment)
 */
#define SLAPI_ENTRY_VATTR_NOT_RESOLVED -1
#define SLAPI_ENTRY_VATTR_RESOLVED_ABSENT -2
#define SLAPI_ENTRY_VATTR_RESOLVED_EXISTS 0

int slapi_entry_vattrcache_merge_sv(Slapi_Entry *e, const char *type, Slapi_ValueSet *vals);
int slapi_entry_vattrcache_find_values_and_type_ex( const Slapi_Entry *e,
											const char *type,
											Slapi_ValueSet ***results,
											char ***actual_type_name);
SLAPI_DEPRECATED int
slapi_entry_vattrcache_find_values_and_type( const Slapi_Entry *e,
											const char *type,
											Slapi_ValueSet **results,
											char **actual_type_name);
int slapi_entry_vattrcache_findAndTest(const Slapi_Entry *e, const char *type,
										Slapi_Filter *f,
										filter_type_t filter_type,
										int *rc);

int slapi_vattrcache_iscacheable( const char * type );
void slapi_vattrcache_cache_all();
void slapi_vattrcache_cache_none();

int vattr_test_filter(/* Entry we're interested in */ Slapi_Entry *e,						
						Slapi_Filter *f,
						filter_type_t filter_type,
						char *type);

/* filter routines */

int test_substring_filter( Slapi_PBlock *pb, Slapi_Entry *e,
						struct slapi_filter *f,
						int verify_access,int only_check_access, int *access_check_done);
int test_ava_filter( Slapi_PBlock *pb, Slapi_Entry *e, Slapi_Attr *a,
						struct ava *ava, int ftype, int verify_access,
						int only_check_access, int *access_check_done);
int test_presence_filter( Slapi_PBlock *pb, Slapi_Entry *e, char *type,
						int verify_access, int only_check_access, int *access_check_done);

/* this structure allows to address entry by dn or uniqueid */
typedef struct entry_address
{
	char *dn;
	char *udn; /* unnormalized dn */	
	char *uniqueid;	
}entry_address;

/*
 * LDAP Operation input parameters.
 */
typedef struct slapi_operation_parameters
{
	unsigned long operation_type;	/* SLAPI_OPERATION_ADD, SLAPI_OPERATION_MODIFY ... */
	entry_address target_address;	/* address of target entry */
	CSN *csn;						/* The Change Sequence Number assigned to this operation. */

	LDAPControl	**request_controls;/* array v3 LDAPMessage controls  */

	union
	{
		struct add_parameters
		{
			struct slapi_entry *target_entry;
			char *parentuniqueid;
		} p_add;

		struct bind_parameters
		{
			int bind_method;
			struct berval *bind_creds;
			char *bind_saslmechanism;	/* v3 sasl mechanism name */
			struct berval *bind_ret_saslcreds;	/* v3 serverSaslCreds */
		} p_bind;

		struct compare_parameters
		{
			struct ava compare_ava;
		} p_compare;

		struct modify_parameters
		{
			LDAPMod **modify_mods;
		} p_modify;

		struct modrdn_parameters
		{
			char *modrdn_newrdn;
			int modrdn_deloldrdn;
			entry_address modrdn_newsuperior_address;	/* address of the superior entry */
			LDAPMod **modrdn_mods;			/* modifiers name and timestamp */
		} p_modrdn;

		struct search_parameters
		{
			int	search_scope;
			int	search_deref;
			int	search_sizelimit;
			int	search_timelimit;
			struct slapi_filter	*search_filter;
			char *search_strfilter;
			char **search_attrs;
			int search_attrsonly;
			int search_is_and;
		} p_search;

		struct abandon_parameters
		{
			int abandon_targetmsgid;
		} p_abandon;

		struct extended_parameters
		{
			char *exop_oid;
			struct berval *exop_value;
		} p_extended;
	} p;
} slapi_operation_parameters;

struct slapi_operation_parameters *operation_parameters_new();
struct slapi_operation_parameters *operation_parameters_dup(struct slapi_operation_parameters *sop);
void operation_parameters_done(struct slapi_operation_parameters *sop);
void operation_parameters_free(struct slapi_operation_parameters **sop);


/*
 * errormap.c
 */
char *slapd_pr_strerror( const PRErrorCode prerrno );
const char *slapd_system_strerror( const int syserrno );
const char *slapd_versatile_strerror( const PRErrorCode prerrno );


/*
 * localhost.c
 */
char* get_localhost_DNS();
/* Return the fully-qualified DNS name of this machine.
   The caller should _not_ free this pointer. */
char* get_localhost_DN();

/*
 * Reference-counted objects
 */
typedef void (*FNFree) (void **);
typedef struct object Object;
Object *object_new(void *user_data, FNFree destructor);
void object_acquire(Object *o);
void object_release(Object *o);
void *object_get_data(Object *o);

/* Sets of reference-counted objects */
#define OBJSET_SUCCESS 0
#define OBJSET_ALREADY_EXISTS 1
#define OBJSET_NO_SUCH_OBJECT 2
typedef int (*CMPFn) (Object *set, const void *name);
typedef struct objset Objset;
Objset *objset_new(FNFree objset_destructor);
void objset_delete(Objset **set);
int objset_add_obj(Objset *set, Object *object);
Object *objset_find(Objset *set, CMPFn compare_fn, const void *name);
int objset_remove_obj(Objset *set, Object *object);
Object *objset_first_obj(Objset *set);
Object *objset_next_obj(Objset *set, Object *previous);
int objset_is_empty(Objset *set);
int objset_size(Objset *set);

/* backend management */
typedef struct index_config
{
	char *attr_name;  /* attr name: dn, cn, etc. */
	char *index_type; /* space terminated list of indexes;
						 possible types: "eq" "sub" "pres" "approx" */
	int	 system;	  /* marks this index as system */
}IndexConfig;

void be_set_sizelimit(Slapi_Backend * be, int sizelimit);
void be_set_timelimit(Slapi_Backend * be, int timelimit);

/* used by mapping tree to delay sending of result code when several 
 * backend are parsed 
 */
void slapi_set_ldap_result( Slapi_PBlock *pb, int err, char *matched,
   char *text, int nentries, struct berval **urls );
void slapi_send_ldap_result_from_pb( Slapi_PBlock *pb);

/* mapping tree utility functions */
typedef struct mt_node mapping_tree_node;
mapping_tree_node *slapi_get_mapping_tree_node_by_dn(const Slapi_DN *dn);
char* slapi_get_mapping_tree_node_configdn(const Slapi_DN *root);
const Slapi_DN* slapi_get_mapping_tree_node_root(const mapping_tree_node *node);
const char* slapi_get_mapping_tree_config_root ();
Slapi_Backend *slapi_mapping_tree_find_backend_for_sdn(Slapi_DN *sdn);
/* possible flags to check for */
#define SLAPI_MTN_LOCAL     0x1
#define SLAPI_MTN_PRIVATE   0x2
#define SLAPI_MTN_READONLY  0x4
PRBool slapi_mapping_tree_node_is_set (const mapping_tree_node *node,
	PRUint32 flag); 
Slapi_DN* slapi_mtn_get_dn(mapping_tree_node *node);
int slapi_mapping_tree_select_and_check(Slapi_PBlock *pb,char *newdn,
	Slapi_Backend **be, Slapi_Entry **referral, char *errorbuf);
int slapi_mapping_tree_select_all(Slapi_PBlock *pb, Slapi_Backend **be_list,
	Slapi_Entry **referral_list, char *errorbuf);
void slapi_mapping_tree_free_all(Slapi_Backend **be_list,
	Slapi_Entry **referral_list);

/* Mapping Tree */
int slapi_mapping_tree_select(Slapi_PBlock *pb, Slapi_Backend **be, Slapi_Entry **referral, char *error_string);
char ** slapi_mtn_get_referral(const Slapi_DN *sdn);
int slapi_mtn_set_referral(const Slapi_DN *sdn, char ** referral);
int slapi_mtn_set_state(const Slapi_DN *sdn, char *state);
char * slapi_mtn_get_state(const Slapi_DN *sdn);
void slapi_mtn_be_set_readonly(Slapi_Backend *be, int readonly);
void slapi_mtn_be_stopping(Slapi_Backend *be);
void slapi_mtn_be_started(Slapi_Backend *be);
void slapi_mtn_be_disable(Slapi_Backend *be);
void slapi_mtn_be_enable(Slapi_Backend *be);
const char *slapi_mtn_get_backend_name(const Slapi_DN *sdn);

void slapi_be_stopping (Slapi_Backend *be);
void slapi_be_free (Slapi_Backend **be);
void slapi_be_Rlock (Slapi_Backend *be);
void slapi_be_Wlock (Slapi_Backend *be);
void slapi_be_Unlock (Slapi_Backend *be);

/* components */
struct slapi_componentid {
        char                            * sci_magic;
        const struct slapdplugin        * sci_plugin;
        char                            * sci_component_name;
};
 
struct slapi_componentid *
generate_componentid ( struct slapdplugin * pp , char * name );
void release_componentid ( struct slapi_componentid * id );
struct slapi_componentid * plugin_get_default_component_id();

/* interface for component mgmt */
/* Well-known components DNs    */
/* Should be documented somehow for the chaining backend */

#define COMPONENT_BASE_DN	"cn=components,cn=config"
#define COMPONENT_ROLES		"cn=roles,"COMPONENT_BASE_DN
#define COMPONENT_RESLIMIT	"cn=resource limits,"COMPONENT_BASE_DN
#define COMPONENT_PWPOLICY	"cn=password policy,"COMPONENT_BASE_DN
#define COMPONENT_CERT_AUTH	"cn=certificate-based authentication,"COMPONENT_BASE_DN

/* Component names for logging */
#define SLAPI_COMPONENT_NAME_NSPR	"Netscape Portable Runtime"
#define SLAPI_COMPONENT_NAME_LDAPSDK	"LDAP sdk"

/* return the list of attr defined in the schema matching the attr flags */
char ** slapi_schema_list_attribute_names(unsigned long flag);
CSN *dup_global_schema_csn();

/* misc function for the chaining backend */
char * slapi_get_rootdn();	/* return the directory manager dn in use */

/* plugin interface to bulk import */
/* This function initiates bulk import. The pblock must contain 
   SLAPI_LDIF2DB_GENERATE_UNIQUEID -- currently always set to TIME_BASED 
   SLAPI_CONNECTION -- connection over which bulk import is coming
   SLAPI_BACKEND -- the backend being imported 
   or 
   SLAPI_TARGET_DN that contains root of the imported area.   
   The function returns LDAP_SUCCESS or LDAP error code 
*/
int slapi_start_bulk_import (Slapi_PBlock *pb);

/* This function adds an entry to the bulk import. The pblock must contain
   SLAPI_CONNECTION -- connection over which bulk import is coming
   SLAPI_BACKEND -- optional backend pointer; if missing computed based on entry dn 
   The function returns LDAP_SUCCESS or LDAP error code 
*/
int slapi_import_entry (Slapi_PBlock *pb, Slapi_Entry *e); 
 
/* This function stops bulk import. The pblock must contain
   SLAPI_CONNECTION -- connection over which bulk import is coming
   SLAPI_BACKEND -- the backend being imported 
   or 
   SLAPI_TARGET_DN that contains root of the imported area.   
   The function returns LDAP_SUCCESS or LDAP error code 
*/
int slapi_stop_bulk_import (Slapi_PBlock *pb); 

/* allows plugins to close inbound connection */
void slapi_disconnect_server(Slapi_Connection *conn);

/* functions to look up instance names by suffixes (backend_manager.c) */
int slapi_lookup_instance_name_by_suffixes(char **included,
										   char **excluded, char ***instances);
int slapi_lookup_instance_name_by_suffix(char *suffix,
							char ***suffixes, char ***instances, int isexact);

/* begin and end the task subsystem */
void task_init(void);
void task_shutdown(void);

/* for reversible encyrption */
#define SLAPI_MB_CREDENTIALS    "nsmultiplexorcredentials"
#define SLAPI_REP_CREDENTIALS   "nsds5ReplicaCredentials"
int pw_rever_encode(Slapi_Value **vals, char * attr_name);
int pw_rever_decode(char *cipher, char **plain, const char * attr_name);

/* config routines */

int slapi_config_get_readonly();

/*
 * charray.c
 */
void charray_add( char ***a, char *s );
void charray_merge( char ***a, char **s, int copy_strs );
void charray_free( char **array );
int charray_inlist( char **a, char *s );
int charray_utf8_inlist( char **a, char *s );
char ** charray_dup( char **a );
char ** str2charray( char *str, char *brkstr );
int charray_remove(char **a,const char *s);
char ** cool_charray_dup( char **a );
void cool_charray_free( char **array );
void charray_subtract( char **a, char **b, char ***c );
int charray_get_index(char **array, char *s);


/******************************************************************************
 * value array routines.
 *
 * It is unclear if these should ever be public, but today they are used by
 * some plugins.  They would need to be renamed to have a slapi_ prefix at
 * the very least before we make them public.
 */
void valuearray_add_value(Slapi_Value ***vals, const Slapi_Value *addval);
void valuearray_add_value_fast(Slapi_Value ***vals, Slapi_Value *addval, int nvals, int *maxvals, int exact, int passin);
void valuearray_add_valuearray( Slapi_Value ***vals, Slapi_Value **addvals, PRUint32 flags );
void valuearray_add_valuearray_fast( Slapi_Value ***vals, Slapi_Value **addvals, int nvals, int naddvals, int *maxvals, int exact, int passin );


/******************************************************************************
 * Database plugin interface.
 *
 * Prior to the 5.0 release, this was a public interface that lived in
 * slapi-plugin.h, so it is still a good idea to avoid making changes to it
 * that are not backwards compatible.
 */

/* plugin type */
#define SLAPI_PLUGIN_DATABASE			1

/* database plugin functions */
#define SLAPI_PLUGIN_DB_BIND_FN			200
#define SLAPI_PLUGIN_DB_UNBIND_FN		201
#define SLAPI_PLUGIN_DB_SEARCH_FN		202
#define SLAPI_PLUGIN_DB_COMPARE_FN		203
#define SLAPI_PLUGIN_DB_MODIFY_FN		204
#define SLAPI_PLUGIN_DB_MODRDN_FN		205
#define SLAPI_PLUGIN_DB_ADD_FN			206
#define SLAPI_PLUGIN_DB_DELETE_FN		207
#define SLAPI_PLUGIN_DB_ABANDON_FN		208
#define SLAPI_PLUGIN_DB_CONFIG_FN		209
#define SLAPI_PLUGIN_DB_FLUSH_FN		211
#define SLAPI_PLUGIN_DB_SEQ_FN			213
#define SLAPI_PLUGIN_DB_ENTRY_FN		214
#define SLAPI_PLUGIN_DB_REFERRAL_FN		215
#define SLAPI_PLUGIN_DB_RESULT_FN		216
#define SLAPI_PLUGIN_DB_LDIF2DB_FN		217
#define SLAPI_PLUGIN_DB_DB2LDIF_FN		218
#define SLAPI_PLUGIN_DB_BEGIN_FN		219
#define SLAPI_PLUGIN_DB_COMMIT_FN		220
#define SLAPI_PLUGIN_DB_ABORT_FN		221
#define SLAPI_PLUGIN_DB_ARCHIVE2DB_FN		222
#define SLAPI_PLUGIN_DB_DB2ARCHIVE_FN		223
#define SLAPI_PLUGIN_DB_NEXT_SEARCH_ENTRY_FN	224
#define SLAPI_PLUGIN_DB_FREE_RESULT_SET_FN	225
#define	SLAPI_PLUGIN_DB_SIZE_FN			226
#define	SLAPI_PLUGIN_DB_TEST_FN			227
#define SLAPI_PLUGIN_DB_DB2INDEX_FN		228
#define SLAPI_PLUGIN_DB_NEXT_SEARCH_ENTRY_EXT_FN	229
#define SLAPI_PLUGIN_DB_ENTRY_RELEASE_FN	230
#define SLAPI_PLUGIN_DB_INIT_INSTANCE_FN        231
#define SLAPI_PLUGIN_DB_WIRE_IMPORT_FN          234
#if defined(UPGRADEDB)
#define SLAPI_PLUGIN_DB_UPGRADEDB_FN		235
#endif
/* database plugin-specific parameters */
#define SLAPI_PLUGIN_DB_NO_ACL        		250
#define SLAPI_PLUGIN_DB_RMDB_FN         	280

/**** End of database plugin interface. **************************************/


/******************************************************************************
 * Interface to the UniqueID generator (uniqueid.c)
 *
 * This could be made public someday, although it is a large interface and
 * not all of the elements follow the SLAPI_ naming convention.
 */
 /* error codes */
#define UID_UPDATE_SHUTDOWN	-1	   /* update state information only during server shutdown */
#define UID_UPDATE_INTERVAL 600000 /* 10 minutes */

enum {UID_SUCCESS,      /* operation was successfull              */
      UID_ERROR_BASE=10,/* start of the error codes               */
      UID_BADDATA,      /* invalid parameter passed to a function */
      UID_MEMORY_ERROR, /* memory allocation failed               */
      UID_SYSTEM_ERROR,	/* I/O failed (currently, further details 
					       can be obtained using PR_GetError      */
      UID_TIME_ERROR,	/* UUID can't be generated because system
						   time has not been update               */
      UID_ERROR_END     /* end of the error codes                 */
     };

/* Function:	slapi_uniqueIDNew
   Description: allocates new id
   Paramters:   none
   Return:		pointer to the newly allocated id if successful
				NULL if the system is out of memory
 */
Slapi_UniqueID* slapi_uniqueIDNew( void );

/* Function:	slapi_uniqueIDDestroy
   Description:	destroys UniqueID object and sets its pointer to NULL
   Parameters:	uId - id to destroy
   Return:		none
 */
void slapi_uniqueIDDestroy(Slapi_UniqueID **uId);

/* Function:    slapi_uniqueIDCompare
   Description: this function compares two ids (byte by byte).
   Parameters:  uId1, uId2 - ids to compare
   Return:      -1 if uId1 <  uId2
                0  if uId2 == uId2
                1  if uId2 >  uId2
                UID_BADDATA if invalid pointer passed to the function
*/
int slapi_uniqueIDCompare(const Slapi_UniqueID *uId1, const Slapi_UniqueID *uId2);

int slapi_uniqueIDCompareString(const char *uuid1, const char *uuid2);

/*  Function:    slapi_uniqueIDFormat
    Description: this function converts entryId to its string representation.
                 The id format is HH-HHHHHHHH-HHHHHHHH-HHHHHHHH-HHHHHHHH
				 where H is a hex digit.
    Parameters:  uId  - unique id
                 buff - buffer in which id is returned;
    Return:      UID_SUCCESS - function was successfull
                 UID_BADDATA - invalid parameter passed to the function
*/
int slapi_uniqueIDFormat(const Slapi_UniqueID *uId, char **buff);

/*  Function:    slapi_uniqueIDScan
    Description: this function converts a string buffer into uniqueID.
				 Currently, it only supports 
				 HH-HHHHHHHH-HHHHHHHH-HHHHHHHH-HHHHHHHH data format.
    Parameters:  uId  - unique id to be returned
                 buff - buffer with uniqueID.
    Return:      UID_SUCCESS - function was successfull
                 UID_BADDATA - null parameter(s) or bad format
*/
int slapi_uniqueIDScan(Slapi_UniqueID *uId, const char *buff);


/* Function:     slapi_uniqueIDIsUUID
   Description:  tests if given entry id is of UUID type
   Parameters:   uId - unique id to test
   Return        UID_SUCCESS - function was successfull
                 UID_BADDATA - invalid data passed to the function
 */
int slapi_uniqueIDIsUUID(const Slapi_UniqueID *uId);

/* Name:		slapi_uniqueIDSize
   Description:	returns size of the string version of uniqueID in bytes
   Parameters:  none
   Return:		size of the string version of uniqueID in bytes
 */
int slapi_uniqueIDSize( void );

/* Name:		slapi_uniqueIDDup
   Description:	duplicates an UniqueID object
   Parameters:	uId - id to duplicate
   Return:		duplicate of the Id
 */
Slapi_UniqueID* slapi_uniqueIDDup(Slapi_UniqueID *uId);

/*
 * interface to UniqueID generator - uniqueidgen.c
 */

/* Function:    slapi_uniqueIDGenerate    
   Description: this function generates uniqueid in a singlethreaded
                environment.
   Parameters:  uId - buffer to receive the ID.
   Return:      UID_SUCCESS if function succeeds;
                UID_BADDATA if invalid pointer passed to the function;
                UID_SYSTEM_ERROR update to persistent storage failed. 
*/

int slapi_uniqueIDGenerate(Slapi_UniqueID *uId);

/* Function:    slapi_uniqueIDGenerateString    
   Description: this function generates uniqueid an returns it as a string
                in a singlethreaded environment. This function returns the
				data in the format generated by slapi_uniqueIDFormat.
   Parameters:  uId - buffer to receive the ID.	Caller is responsible for
				freeing uId buffer.
   Return:      UID_SUCCESS if function succeeds;
                UID_BADDATA if invalid pointer passed to the function;
				UID_MEMORY_ERROR if malloc fails;
                UID_SYSTEM_ERROR update to persistent storage failed. 
*/

int slapi_uniqueIDGenerateString(char **uId);

/* Function:    slapi_uniqueIDGenerateMT    
   Description: this function generates entry id in a multithreaded
                environment. Used in conjunction with 
                uniqueIDUpdateState function.
   Parameters:  uId - structure in which new id will be returned. 
   Return:      UID_SUCCESS if function succeeds;
                UID_BADDATA if invalid pointer passed to the function;
                UID_TIME_ERROR uniqueIDUpdateState must be called
                before the id can be generated.
*/

int slapi_uniqueIDGenerateMT(Slapi_UniqueID *uId);

/* Function:    slapi_uniqueIDGenerateMTString    
   Description: this function generates  uniqueid and returns it as a
                string in a multithreaded environment. Used in conjunction
				with uniqueIDUpdateState function. 
   Parameters:  uId - buffer in which new id will be returned. Caller is 
				responsible for freeing uId buffer.
   Return:      UID_SUCCESS if function succeeds;
                UID_BADDATA if invalid pointer passed to the function;
				UID_MEMORY_ERROR if malloc fails;
                UID_TIME_ERROR uniqueIDUpdateState must be called
                before the id can be generated.
*/

int slapi_uniqueIDGenerateMTString(char **uId);

/* Function:	slapi_uniqueIDGenerateFromName
   Description:	this function generates an id from a name. See uuid
				draft for more details. This function can be used in
				both a singlethreaded and a multithreaded environments.
   Parameters:	uId		- generated id
				uIDBase - uid used for generation to distinguish among 
				different name spaces
				name - buffer containing name from which to generate the id
				namelen - length of the name buffer
   Return:		UID_SUCCESS if function succeeds
				UID_BADDATA if invalid argument is passed to the
				function.
*/

int slapi_uniqueIDGenerateFromName(Slapi_UniqueID *uId, 
									const Slapi_UniqueID *uIdBase, 
									const void *name, int namelen);

/* Function:	slapi_uniqueIDGenerateFromName
   Description:	this function generates an id from a name and returns
                it in the string format. See uuid draft for more
				details. This function can be used in both a
				singlethreaded and a multithreaded environments.
   Parameters:	uId		- generated id in string form
				uIDBase - uid used for generation to distinguish among 
				different name spaces in string form. NULL means to use
				empty id as the base.
				name - buffer containing name from which to generate the id
				namelen - length of the name buffer
   Return:		UID_SUCCESS if function succeeds
				UID_BADDATA if invalid argument is passed to the
				function.
*/

int slapi_uniqueIDGenerateFromNameString(char **uId, 
										  const char *uIdBase, 
										  const void *name, int namelen);

/**** End of UniqueID generator interface. ***********************************/


/*****************************************************************************
 * JCMREPL - Added for the replication plugin.
 */
 
/* 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);
int config_is_slapd_lite( void );

#define SLAPI_RTN_BIT_FETCH_EXISTING_DN_ENTRY 0
#define SLAPI_RTN_BIT_FETCH_PARENT_ENTRY 1
#define SLAPI_RTN_BIT_FETCH_NEWPARENT_ENTRY 2
#define SLAPI_RTN_BIT_FETCH_TARGET_ENTRY 3
#define SLAPI_RTN_BIT_FETCH_EXISTING_UNIQUEID_ENTRY 4

/* Attribute use to mark entries that had a replication conflict on the DN */
#define ATTR_NSDS5_REPLCONFLICT "nsds5ReplConflict"

/* Time */
#include <time.h> /* difftime, localtime_r, mktime */
/* Duplicated: time_t read_localTime (struct berval* from); */
time_t time_plus_sec(time_t l, long r);
char* format_localTime(time_t from);
time_t read_localTime(struct berval* from);
time_t parse_localTime(char* from);
void write_localTime(time_t from, struct berval* into);
time_t current_time( void );
char* format_genTime(time_t from);
void write_genTime(time_t from, struct berval* into);
time_t read_genTime(struct berval* from);
time_t parse_genTime(char* from);

/* Client SSL code */
int slapd_SSL_client_init( void );
int slapd_security_library_is_initialized( void );
int slapd_SSL_client_bind_s(LDAP* ld, char* DN, char* pw, int use_SSL, int LDAPv);
int slapd_sasl_ext_client_bind(LDAP* ld, int **msgid);
int slapd_Client_auth(LDAP* ld);
char* slapd_get_tmp_dir( void );

/* Misc crrrrrrap */
#include <stdio.h> /* GGOODREPL - For BUFSIZ, below, gak */
const char* escape_string (const char* str, char buf[BUFSIZ]);
const char* escape_string_with_punctuation(const char* str, char buf[BUFSIZ]);
const char* escape_filter_value(const char* str, int len, char buf[BUFSIZ]);
void charray_add( char ***a, char *s );
void charray_free(char **array);
int charray_remove(char **a,const char *s);
int charray_inlist( char **a, char *s );

char *slapi_berval_get_string_copy(const struct berval *bval);

/* lenstr stuff */

typedef struct _lenstr {
    char *ls_buf;
    size_t ls_len;
    size_t ls_maxlen;
} lenstr;
#define LS_INCRSIZE     256

void addlenstr( lenstr *l, const char *str );
void lenstr_free( lenstr ** );
lenstr *lenstr_new(void);

/* event queue routines and data types */
typedef void* Slapi_Eq_Context;
typedef void (*slapi_eq_fn_t)(time_t when, void *arg);
Slapi_Eq_Context slapi_eq_once(slapi_eq_fn_t fn, void *arg, time_t when);
Slapi_Eq_Context slapi_eq_repeat(slapi_eq_fn_t fn, void *arg, time_t when, unsigned long interval);
int slapi_eq_cancel(Slapi_Eq_Context ctx);
void *slapi_eq_get_arg (Slapi_Eq_Context ctx);

/* config DN */
char *get_config_DN(void);

/* Data Version */
const char *get_server_dataversion( void );

/* Configuration Parameters */
int config_get_port( void );
int config_get_secureport( void );

/* Local host information */
char* get_localhost_DN( void );
char* get_localhost_DNS( void );

/* GGOODREPL get_data_source definition should move into repl DLL */
struct berval **get_data_source(Slapi_PBlock *pb, const Slapi_DN *sdn, int orc, void *cf_refs);

/* JCMREPL - IFP and CFP should be defined centrally */
#ifndef _IFP
#define _IFP
typedef int	(*IFP)();
#endif

#ifndef _CFP
#define _CFP
typedef char*(*CFP)();
#endif

void bervalarray_add_berval_fast(struct berval ***vals, const struct berval *addval, int nvals, int *maxvals);

int slapd_re_exec( char *lp );
char *slapd_re_comp( char *pat );
int slapd_re_subs( char *src, char* dst );
void slapd_re_lock( void );
int slapd_re_unlock( void );
int slapd_re_init( void );


/* this is the root configuration entry beneath which all plugin
   configuration entries will be found */
#define PLUGIN_BASE_DN "cn=plugins,cn=config"

/***** End of items added for the replication plugin. ***********************/


/******************************************************************************
 * Online tasks interface (to support import, export, etc)
 * After some cleanup, we could consider making these public.
 */
typedef struct _slapi_task Slapi_Task;
typedef int (*TaskCallbackFn)(Slapi_Task *task);

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

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

struct _slapi_task {
    struct _slapi_task *next;
    char *task_dn;
    int task_exitcode;          /* for the end user */
    int task_state;             /* (see above) */
    int task_progress;          /* number between 0 and task_work */
    int task_work;              /* "units" of work to be done */
    int task_flags;             /* (see above) */

    /* it is the task's responsibility to allocate this memory & free it: */
    char *task_status;          /* transient status info */
    char *task_log;             /* appended warnings, etc */

    void *task_private;         /* for use by backends */
    TaskCallbackFn cancel;      /* task has been cancelled by user */
    TaskCallbackFn destructor;  /* task entry is being destroyed */
	int task_refcount;
};

int slapi_task_register_handler(const char *name, dseCallbackFn func);
void slapi_task_status_changed(Slapi_Task *task);
void slapi_task_log_status(Slapi_Task *task, char *format, ...);
void slapi_task_log_notice(Slapi_Task *task, char *format, ...);

/* End of interface to support online tasks **********************************/


void    DS_Sleep(PRIntervalTime ticks);

#if defined(UPGRADEDB)
/* macro to specify the behavior of upgradedb */
#define SLAPI_UPGRADEDB_FORCE    0x1 /* reindex all (no check w/ idl switch) */
#define SLAPI_UPGRADEDB_SKIPINIT 0x2 /* call upgradedb as part of other op */
#endif

#ifdef __cplusplus
}
#endif

#endif