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      1 /*	$NetBSD: slap.h,v 1.4 2025/09/05 21:16:26 christos Exp $	*/
      2 
      3 /* slap.h - stand alone ldap server include file */
      4 /* $OpenLDAP$ */
      5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
      6  *
      7  * Copyright 1998-2024 The OpenLDAP Foundation.
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted only as authorized by the OpenLDAP
     12  * Public License.
     13  *
     14  * A copy of this license is available in the file LICENSE in the
     15  * top-level directory of the distribution or, alternatively, at
     16  * <http://www.OpenLDAP.org/license.html>.
     17  */
     18 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
     19  * All rights reserved.
     20  *
     21  * Redistribution and use in source and binary forms are permitted
     22  * provided that this notice is preserved and that due credit is given
     23  * to the University of Michigan at Ann Arbor. The name of the University
     24  * may not be used to endorse or promote products derived from this
     25  * software without specific prior written permission. This software
     26  * is provided ``as is'' without express or implied warranty.
     27  */
     28 
     29 #ifndef _SLAP_H_
     30 #define _SLAP_H_
     31 
     32 #include "ldap_defaults.h"
     33 
     34 #include <stdio.h>
     35 #include <ac/stdlib.h>
     36 
     37 #include <sys/types.h>
     38 #include <ac/syslog.h>
     39 #include <ac/regex.h>
     40 #include <ac/signal.h>
     41 #include <ac/socket.h>
     42 #include <ac/time.h>
     43 #include <ac/param.h>
     44 
     45 #include "ldap_avl.h"
     46 
     47 #ifndef ldap_debug
     48 #define ldap_debug slap_debug
     49 #endif
     50 
     51 #include "ldap_log.h"
     52 
     53 #include <ldap.h>
     54 #include <ldap_schema.h>
     55 
     56 #include "lber_pvt.h"
     57 #include "ldap_pvt.h"
     58 #include "ldap_pvt_thread.h"
     59 #include "ldap_queue.h"
     60 
     61 #include "lutil.h"
     62 
     63 LDAP_BEGIN_DECL
     64 
     65 #ifdef LDAP_DEVEL
     66 #define LDAP_COLLECTIVE_ATTRIBUTES
     67 #define LDAP_COMP_MATCH
     68 #define LDAP_SYNC_TIMESTAMP
     69 #define SLAP_CONTROL_X_WHATFAILED
     70 #ifndef SLAP_SCHEMA_EXPOSE
     71 #define SLAP_SCHEMA_EXPOSE
     72 #endif
     73 #endif
     74 
     75 #define SLAP_CONFIG_DELETE
     76 #define SLAP_AUXPROP_DONTUSECOPY
     77 #define LDAP_DYNAMIC_OBJECTS
     78 #define SLAP_CONTROL_X_TREE_DELETE LDAP_CONTROL_X_TREE_DELETE
     79 #define SLAP_CONTROL_X_SESSION_TRACKING
     80 #define SLAP_DISTPROC
     81 #define SLAP_CONTROL_X_LAZY_COMMIT
     82 
     83 #ifndef SLAP_STATS_ETIME
     84 #define SLAP_STATS_ETIME	1 /* microsecond op timing */
     85 #endif
     86 
     87 /*
     88  * SLAPD Memory allocation macros
     89  *
     90  * Unlike ch_*() routines, these routines do not assert() upon
     91  * allocation error.  They are intended to be used instead of
     92  * ch_*() routines where the caller has implemented proper
     93  * checking for and handling of allocation errors.
     94  *
     95  * Patches to convert ch_*() calls to SLAP_*() calls welcomed.
     96  */
     97 #define SLAP_MALLOC(s)      ber_memalloc((s))
     98 #define SLAP_CALLOC(n,s)    ber_memcalloc((n),(s))
     99 #define SLAP_REALLOC(p,s)   ber_memrealloc((p),(s))
    100 #define SLAP_FREE(p)        ber_memfree((p))
    101 #define SLAP_VFREE(v)       ber_memvfree((void**)(v))
    102 #define SLAP_STRDUP(s)      ber_strdup((s))
    103 #define SLAP_STRNDUP(s,l)   ber_strndup((s),(l))
    104 
    105 #ifdef f_next
    106 #undef f_next /* name conflict between sys/file.h on SCO and struct filter */
    107 #endif
    108 
    109 #define SERVICE_NAME  OPENLDAP_PACKAGE "-slapd"
    110 #define SLAPD_ANONYMOUS ""
    111 
    112 #ifdef HAVE_TCPD
    113 # include <tcpd.h>
    114 # define SLAP_STRING_UNKNOWN	STRING_UNKNOWN
    115 #else /* ! TCP Wrappers */
    116 # define SLAP_STRING_UNKNOWN	"unknown"
    117 #endif /* ! TCP Wrappers */
    118 
    119 /* LDAPMod.mod_op value ===> Must be kept in sync with ldap.h! */
    120 /* These values are used internally by the backends. */
    121 /* SLAP_MOD_SOFTADD allows adding values that already exist without getting
    122  * an error as required by modrdn when the new rdn was already an attribute
    123  * value itself.
    124  */
    125 #define SLAP_MOD_SOFTADD		0x1000
    126 /* SLAP_MOD_SOFTDEL allows deleting values if they exist without getting
    127  * an error otherwise.
    128  */
    129 #define SLAP_MOD_SOFTDEL		0x1001
    130 /* SLAP_MOD_ADD_IF_NOT_PRESENT allows adding values unless the attribute
    131  * is already present without getting an error.
    132  */
    133 #define SLAP_MOD_ADD_IF_NOT_PRESENT	0x1002
    134 /* SLAP_MOD_DEL_IF_PRESENT allows deleting values if the attribute
    135  * is present, without getting an error otherwise.
    136  * The semantics can be obtained using SLAP_MOD_SOFTDEL with NULL values.
    137  */
    138 
    139 #define MAXREMATCHES (100)
    140 
    141 #define SLAP_MAX_WORKER_THREADS		(16)
    142 
    143 #define SLAP_SB_MAX_INCOMING_DEFAULT ((1<<18) - 1)
    144 #define SLAP_SB_MAX_INCOMING_AUTH ((1<<24) - 1)
    145 
    146 #define SLAP_CONN_MAX_PENDING_DEFAULT	100
    147 #define SLAP_CONN_MAX_PENDING_AUTH	1000
    148 #define SLAP_MAX_FILTER_DEPTH_DEFAULT	1000
    149 
    150 #define SLAP_TEXT_BUFLEN (256)
    151 
    152 /* pseudo error code indicating abandoned operation */
    153 #define SLAPD_ABANDON (-1024)
    154 
    155 /* pseudo error code indicating disconnect */
    156 #define SLAPD_DISCONNECT (-1025)
    157 
    158 /* unknown config file directive */
    159 #define SLAP_CONF_UNKNOWN (-1026)
    160 
    161 /* pseudo error code indicating async operation */
    162 #define SLAPD_ASYNCOP (-1027)
    163 
    164 /* pseudo error code to suppress frontend response */
    165 #define SLAPD_NO_REPLY (-1028)
    166 
    167 /* We assume "C" locale, that is US-ASCII */
    168 #define ASCII_SPACE(c)	( (c) == ' ' )
    169 #define ASCII_LOWER(c)	( (c) >= 'a' && (c) <= 'z' )
    170 #define ASCII_UPPER(c)	( (c) >= 'A' && (c) <= 'Z' )
    171 #define ASCII_ALPHA(c)	( ASCII_LOWER(c) || ASCII_UPPER(c) )
    172 #define ASCII_DIGIT(c)	( (c) >= '0' && (c) <= '9' )
    173 #define ASCII_HEXLOWER(c)	( (c) >= 'a' && (c) <= 'f' )
    174 #define ASCII_HEXUPPER(c)	( (c) >= 'A' && (c) <= 'F' )
    175 #define ASCII_HEX(c)	( ASCII_DIGIT(c) || \
    176 	ASCII_HEXLOWER(c) || ASCII_HEXUPPER(c) )
    177 #define ASCII_ALNUM(c)	( ASCII_ALPHA(c) || ASCII_DIGIT(c) )
    178 #define ASCII_PRINTABLE(c) ( (c) >= ' ' && (c) <= '~' )
    179 
    180 #define SLAP_NIBBLE(c) ((c)&0x0f)
    181 #define SLAP_ESCAPE_CHAR ('\\')
    182 #define SLAP_ESCAPE_LO(c) ( "0123456789ABCDEF"[SLAP_NIBBLE(c)] )
    183 #define SLAP_ESCAPE_HI(c) ( SLAP_ESCAPE_LO((c)>>4) )
    184 
    185 #define FILTER_ESCAPE(c) ( (c) == '*' || (c) == '\\' \
    186 	|| (c) == '(' || (c) == ')' || !ASCII_PRINTABLE(c) )
    187 
    188 #define DN_ESCAPE(c)	((c) == SLAP_ESCAPE_CHAR)
    189 /* NOTE: for consistency, this macro must only operate
    190  * on normalized/pretty DN, such that ';' is never used
    191  * as RDN separator, and all occurrences of ';' must be escaped */
    192 #define DN_SEPARATOR(c)	((c) == ',')
    193 #define RDN_ATTRTYPEANDVALUE_SEPARATOR(c) ((c) == '+') /* RFC 4514 */
    194 #define RDN_SEPARATOR(c) (DN_SEPARATOR(c) || RDN_ATTRTYPEANDVALUE_SEPARATOR(c))
    195 #define RDN_NEEDSESCAPE(c)	((c) == '\\' || (c) == '"')
    196 
    197 #define DESC_LEADCHAR(c)	( ASCII_ALPHA(c) )
    198 #define DESC_CHAR(c)	( ASCII_ALNUM(c) || (c) == '-' )
    199 #define OID_LEADCHAR(c)	( ASCII_DIGIT(c) )
    200 #define OID_SEPARATOR(c)	( (c) == '.' )
    201 #define OID_CHAR(c)	( OID_LEADCHAR(c) || OID_SEPARATOR(c) )
    202 
    203 #define ATTR_LEADCHAR(c)	( DESC_LEADCHAR(c) || OID_LEADCHAR(c) )
    204 #define ATTR_CHAR(c)	( DESC_CHAR((c)) || OID_SEPARATOR(c) )
    205 
    206 #define AD_LEADCHAR(c)	( ATTR_LEADCHAR(c) )
    207 #define AD_CHAR(c)		( ATTR_CHAR(c) || (c) == ';' )
    208 
    209 #define SLAP_NUMERIC(c) ( ASCII_DIGIT(c) || ASCII_SPACE(c) )
    210 
    211 #define SLAP_PRINTABLE(c)	( ASCII_ALNUM(c) || (c) == '\'' || \
    212 	(c) == '(' || (c) == ')' || (c) == '+' || (c) == ',' || \
    213 	(c) == '-' || (c) == '.' || (c) == '/' || (c) == ':' || \
    214 	(c) == '?' || (c) == ' ' || (c) == '=' )
    215 #define SLAP_PRINTABLES(c)	( SLAP_PRINTABLE(c) || (c) == '$' )
    216 
    217 /* must match in schema_init.c */
    218 #define SLAPD_DN_SYNTAX			"1.3.6.1.4.1.1466.115.121.1.12"
    219 #define SLAPD_NAMEUID_SYNTAX	"1.3.6.1.4.1.1466.115.121.1.34"
    220 #define SLAPD_INTEGER_SYNTAX	"1.3.6.1.4.1.1466.115.121.1.27"
    221 #define SLAPD_GROUP_ATTR		"member"
    222 #define SLAPD_GROUP_CLASS		"groupOfNames"
    223 #define SLAPD_ROLE_ATTR			"roleOccupant"
    224 #define SLAPD_ROLE_CLASS		"organizationalRole"
    225 
    226 #define SLAPD_TOP_OID			"2.5.6.0"
    227 
    228 LDAP_SLAPD_V (int) slap_debug;
    229 
    230 typedef unsigned long slap_mask_t;
    231 
    232 /* Security Strength Factor */
    233 typedef unsigned slap_ssf_t;
    234 
    235 typedef struct slap_ssf_set {
    236 	slap_ssf_t sss_ssf;
    237 	slap_ssf_t sss_transport;
    238 	slap_ssf_t sss_tls;
    239 	slap_ssf_t sss_sasl;
    240 	slap_ssf_t sss_update_ssf;
    241 	slap_ssf_t sss_update_transport;
    242 	slap_ssf_t sss_update_tls;
    243 	slap_ssf_t sss_update_sasl;
    244 	slap_ssf_t sss_simple_bind;
    245 } slap_ssf_set_t;
    246 
    247 /* Flags for telling slap_sasl_getdn() what type of identity is being passed */
    248 #define SLAP_GETDN_AUTHCID 2
    249 #define SLAP_GETDN_AUTHZID 4
    250 
    251 /*
    252  * Index types
    253  */
    254 #define SLAP_INDEX_TYPE           0x00FFUL
    255 #define SLAP_INDEX_UNDEFINED      0x0001UL
    256 #define SLAP_INDEX_PRESENT        0x0002UL
    257 #define SLAP_INDEX_EQUALITY       0x0004UL
    258 #define SLAP_INDEX_APPROX         0x0008UL
    259 #define SLAP_INDEX_SUBSTR         0x0010UL
    260 #define SLAP_INDEX_EXTENDED		  0x0020UL
    261 
    262 #define SLAP_INDEX_DEFAULT        SLAP_INDEX_EQUALITY
    263 
    264 #define IS_SLAP_INDEX(mask, type)	(((mask) & (type)) == (type))
    265 
    266 #define SLAP_INDEX_SUBSTR_TYPE    0x0F00UL
    267 
    268 #define SLAP_INDEX_SUBSTR_INITIAL ( SLAP_INDEX_SUBSTR | 0x0100UL )
    269 #define SLAP_INDEX_SUBSTR_ANY     ( SLAP_INDEX_SUBSTR | 0x0200UL )
    270 #define SLAP_INDEX_SUBSTR_FINAL   ( SLAP_INDEX_SUBSTR | 0x0400UL )
    271 #define SLAP_INDEX_SUBSTR_DEFAULT \
    272 	( SLAP_INDEX_SUBSTR \
    273 	| SLAP_INDEX_SUBSTR_INITIAL \
    274 	| SLAP_INDEX_SUBSTR_ANY \
    275 	| SLAP_INDEX_SUBSTR_FINAL )
    276 
    277 /* defaults for initial/final substring indices */
    278 #define SLAP_INDEX_SUBSTR_IF_MINLEN_DEFAULT	2
    279 #define SLAP_INDEX_SUBSTR_IF_MAXLEN_DEFAULT	4
    280 
    281 /* defaults for any substring indices */
    282 #define SLAP_INDEX_SUBSTR_ANY_LEN_DEFAULT		4
    283 #define SLAP_INDEX_SUBSTR_ANY_STEP_DEFAULT		2
    284 
    285 /* default for ordered integer index keys */
    286 #define SLAP_INDEX_INTLEN_DEFAULT	4
    287 
    288 #define SLAP_INDEX_FLAGS         0xF000UL
    289 #define SLAP_INDEX_NOSUBTYPES    0x1000UL /* don't use index w/ subtypes */
    290 #define SLAP_INDEX_NOTAGS        0x2000UL /* don't use index w/ tags */
    291 
    292 /*
    293  * there is a single index for each attribute.  these prefixes ensure
    294  * that there is no collision among keys.
    295  */
    296 #define SLAP_INDEX_EQUALITY_PREFIX	'=' 	/* prefix for equality keys     */
    297 #define SLAP_INDEX_APPROX_PREFIX	'~'		/* prefix for approx keys       */
    298 #define SLAP_INDEX_SUBSTR_PREFIX	'*'		/* prefix for substring keys    */
    299 #define SLAP_INDEX_SUBSTR_INITIAL_PREFIX '^'
    300 #define SLAP_INDEX_SUBSTR_FINAL_PREFIX '$'
    301 #define SLAP_INDEX_CONT_PREFIX		'.'		/* prefix for continuation keys */
    302 
    303 #define SLAP_SYNTAX_MATCHINGRULES_OID	 "1.3.6.1.4.1.1466.115.121.1.30"
    304 #define SLAP_SYNTAX_ATTRIBUTETYPES_OID	 "1.3.6.1.4.1.1466.115.121.1.3"
    305 #define SLAP_SYNTAX_OBJECTCLASSES_OID	 "1.3.6.1.4.1.1466.115.121.1.37"
    306 #define SLAP_SYNTAX_MATCHINGRULEUSES_OID "1.3.6.1.4.1.1466.115.121.1.31"
    307 #define SLAP_SYNTAX_CONTENTRULE_OID	 "1.3.6.1.4.1.1466.115.121.1.16"
    308 
    309 /*
    310  * represents schema information for a database
    311  */
    312 enum {
    313 	SLAP_SCHERR_OUTOFMEM = 1,
    314 	SLAP_SCHERR_CLASS_NOT_FOUND,
    315 	SLAP_SCHERR_CLASS_BAD_USAGE,
    316 	SLAP_SCHERR_CLASS_BAD_SUP,
    317 	SLAP_SCHERR_CLASS_DUP,
    318 	SLAP_SCHERR_CLASS_INCONSISTENT,
    319 	SLAP_SCHERR_ATTR_NOT_FOUND,
    320 	SLAP_SCHERR_ATTR_BAD_MR,
    321 	SLAP_SCHERR_ATTR_BAD_USAGE,
    322 	SLAP_SCHERR_ATTR_BAD_SUP,
    323 	SLAP_SCHERR_ATTR_INCOMPLETE,
    324 	SLAP_SCHERR_ATTR_DUP,
    325 	SLAP_SCHERR_ATTR_INCONSISTENT,
    326 	SLAP_SCHERR_MR_NOT_FOUND,
    327 	SLAP_SCHERR_MR_INCOMPLETE,
    328 	SLAP_SCHERR_MR_DUP,
    329 	SLAP_SCHERR_SYN_NOT_FOUND,
    330 	SLAP_SCHERR_SYN_DUP,
    331 	SLAP_SCHERR_SYN_SUP_NOT_FOUND,
    332 	SLAP_SCHERR_SYN_SUBST_NOT_SPECIFIED,
    333 	SLAP_SCHERR_SYN_SUBST_NOT_FOUND,
    334 	SLAP_SCHERR_NO_NAME,
    335 	SLAP_SCHERR_NOT_SUPPORTED,
    336 	SLAP_SCHERR_BAD_DESCR,
    337 	SLAP_SCHERR_OIDM,
    338 	SLAP_SCHERR_CR_DUP,
    339 	SLAP_SCHERR_CR_BAD_STRUCT,
    340 	SLAP_SCHERR_CR_BAD_AUX,
    341 	SLAP_SCHERR_CR_BAD_AT,
    342 
    343 	SLAP_SCHERR_LAST
    344 };
    345 
    346 /* forward declarations */
    347 typedef struct Syntax Syntax;
    348 typedef struct MatchingRule MatchingRule;
    349 typedef struct MatchingRuleUse MatchingRuleUse;
    350 typedef struct MatchingRuleAssertion MatchingRuleAssertion;
    351 typedef struct OidMacro OidMacro;
    352 typedef struct ObjectClass ObjectClass;
    353 typedef struct AttributeType AttributeType;
    354 typedef struct AttributeDescription AttributeDescription;
    355 typedef struct AttributeName AttributeName;
    356 typedef struct ContentRule ContentRule;
    357 
    358 typedef struct AttributeAssertion AttributeAssertion;
    359 typedef struct SubstringsAssertion SubstringsAssertion;
    360 typedef struct Filter Filter;
    361 typedef struct ValuesReturnFilter ValuesReturnFilter;
    362 typedef struct Attribute Attribute;
    363 #ifdef LDAP_COMP_MATCH
    364 typedef struct ComponentData ComponentData;
    365 typedef struct ComponentFilter ComponentFilter;
    366 #endif
    367 
    368 typedef struct Entry Entry;
    369 typedef struct Modification Modification;
    370 typedef struct Modifications Modifications;
    371 typedef struct LDAPModList LDAPModList;
    372 
    373 typedef struct BackendInfo BackendInfo;		/* per backend type */
    374 typedef struct BackendDB BackendDB;		/* per backend database */
    375 
    376 typedef struct Connection Connection;
    377 typedef struct Operation Operation;
    378 typedef struct SlapReply SlapReply;
    379 /* end of forward declarations */
    380 
    381 extern int slap_inet4or6;
    382 
    383 struct OidMacro {
    384 	struct berval som_oid;
    385 	BerVarray som_names;
    386 	BerVarray som_subs;
    387 #define	SLAP_OM_HARDCODE	0x10000U	/* This is hardcoded schema */
    388 	int som_flags;
    389 	LDAP_STAILQ_ENTRY(OidMacro) som_next;
    390 };
    391 
    392 typedef int slap_syntax_validate_func LDAP_P((
    393 	Syntax *syntax,
    394 	struct berval * in));
    395 
    396 typedef int slap_syntax_transform_func LDAP_P((
    397 	Syntax *syntax,
    398 	struct berval * in,
    399 	struct berval * out,
    400 	void *memctx));
    401 
    402 #ifdef LDAP_COMP_MATCH
    403 typedef void* slap_component_transform_func LDAP_P((
    404 	struct berval * in ));
    405 struct ComponentDesc;
    406 #endif
    407 
    408 struct Syntax {
    409 	LDAPSyntax			ssyn_syn;
    410 #define ssyn_oid		ssyn_syn.syn_oid
    411 #define ssyn_desc		ssyn_syn.syn_desc
    412 #define ssyn_extensions	ssyn_syn.syn_extensions
    413 	/*
    414 	 * Note: the former
    415 	ber_len_t	ssyn_oidlen;
    416 	 * has been replaced by a struct berval that uses the value
    417 	 * provided by ssyn_syn.syn_oid; a macro that expands to
    418 	 * the bv_len field of the berval is provided for backward
    419 	 * compatibility.  CAUTION: NEVER FREE THE BERVAL
    420 	 */
    421 	struct berval	ssyn_bvoid;
    422 #define	ssyn_oidlen	ssyn_bvoid.bv_len
    423 
    424 	unsigned int ssyn_flags;
    425 
    426 #define SLAP_SYNTAX_NONE	0x0000U
    427 #define SLAP_SYNTAX_BLOB	0x0001U /* syntax treated as blob (audio) */
    428 #define SLAP_SYNTAX_BINARY	0x0002U /* binary transfer required (certificate) */
    429 #define SLAP_SYNTAX_BER		0x0004U /* stored in BER encoding (certificate) */
    430 #ifdef SLAP_SCHEMA_EXPOSE
    431 #define SLAP_SYNTAX_HIDE	0x0000U /* publish everything */
    432 #else
    433 #define SLAP_SYNTAX_HIDE	0x8000U /* hide (do not publish) */
    434 #endif
    435 #define	SLAP_SYNTAX_HARDCODE	0x10000U	/* This is hardcoded schema */
    436 #define	SLAP_SYNTAX_DN		0x20000U	/* Treat like a DN */
    437 
    438 	Syntax				**ssyn_sups;
    439 
    440 	slap_syntax_validate_func	*ssyn_validate;
    441 	slap_syntax_transform_func	*ssyn_pretty;
    442 
    443 #ifdef SLAPD_BINARY_CONVERSION
    444 	/* convert to and from binary */
    445 	slap_syntax_transform_func	*ssyn_ber2str;
    446 	slap_syntax_transform_func	*ssyn_str2ber;
    447 #endif
    448 #ifdef LDAP_COMP_MATCH
    449 	slap_component_transform_func *ssyn_attr2comp;
    450 	struct ComponentDesc* ssync_comp_syntax;
    451 #endif
    452 
    453 	LDAP_STAILQ_ENTRY(Syntax)	ssyn_next;
    454 };
    455 
    456 #define slap_syntax_is_flag(s,flag) ((int)((s)->ssyn_flags & (flag)) ? 1 : 0)
    457 #define slap_syntax_is_blob(s)		slap_syntax_is_flag((s),SLAP_SYNTAX_BLOB)
    458 #define slap_syntax_is_binary(s)	slap_syntax_is_flag((s),SLAP_SYNTAX_BINARY)
    459 #define slap_syntax_is_ber(s)		slap_syntax_is_flag((s),SLAP_SYNTAX_BER)
    460 #define slap_syntax_is_hidden(s)	slap_syntax_is_flag((s),SLAP_SYNTAX_HIDE)
    461 
    462 typedef struct slap_syntax_defs_rec {
    463 	char *sd_desc;
    464 	int sd_flags;
    465 	char **sd_sups;
    466 	slap_syntax_validate_func *sd_validate;
    467 	slap_syntax_transform_func *sd_pretty;
    468 #ifdef SLAPD_BINARY_CONVERSION
    469 	slap_syntax_transform_func *sd_ber2str;
    470 	slap_syntax_transform_func *sd_str2ber;
    471 #endif
    472 } slap_syntax_defs_rec;
    473 
    474 /* X -> Y Converter */
    475 typedef int slap_mr_convert_func LDAP_P((
    476 	struct berval * in,
    477 	struct berval * out,
    478 	void *memctx ));
    479 
    480 /* Normalizer */
    481 typedef int slap_mr_normalize_func LDAP_P((
    482 	slap_mask_t use,
    483 	Syntax *syntax, /* NULL if in is asserted value */
    484 	MatchingRule *mr,
    485 	struct berval *in,
    486 	struct berval *out,
    487 	void *memctx ));
    488 
    489 /* Match (compare) function */
    490 typedef int slap_mr_match_func LDAP_P((
    491 	int *match,
    492 	slap_mask_t use,
    493 	Syntax *syntax,	/* syntax of stored value */
    494 	MatchingRule *mr,
    495 	struct berval *value,
    496 	void *assertValue ));
    497 
    498 /* Index generation function */
    499 typedef int slap_mr_indexer_func LDAP_P((
    500 	slap_mask_t use,
    501 	slap_mask_t mask,
    502 	Syntax *syntax,	/* syntax of stored value */
    503 	MatchingRule *mr,
    504 	struct berval *prefix,
    505 	BerVarray values,
    506 	BerVarray *keys,
    507 	void *memctx ));
    508 
    509 /* Filter index function */
    510 typedef int slap_mr_filter_func LDAP_P((
    511 	slap_mask_t use,
    512 	slap_mask_t mask,
    513 	Syntax *syntax,	/* syntax of stored value */
    514 	MatchingRule *mr,
    515 	struct berval *prefix,
    516 	void *assertValue,
    517 	BerVarray *keys,
    518 	void *memctx ));
    519 
    520 struct MatchingRule {
    521 	LDAPMatchingRule		smr_mrule;
    522 	MatchingRuleUse			*smr_mru;
    523 	/* RFC 4512 string representation */
    524 	struct berval			smr_str;
    525 	/*
    526 	 * Note: the former
    527 	 *			ber_len_t	smr_oidlen;
    528 	 * has been replaced by a struct berval that uses the value
    529 	 * provided by smr_mrule.mr_oid; a macro that expands to
    530 	 * the bv_len field of the berval is provided for backward
    531 	 * compatibility.  CAUTION: NEVER FREE THE BERVAL
    532 	 */
    533 	struct berval			smr_bvoid;
    534 #define	smr_oidlen			smr_bvoid.bv_len
    535 
    536 	slap_mask_t			smr_usage;
    537 
    538 #ifdef SLAP_SCHEMA_EXPOSE
    539 #define SLAP_MR_HIDE			0x0000U
    540 #else
    541 #define SLAP_MR_HIDE			0x8000U
    542 #endif
    543 
    544 #define SLAP_MR_MUTATION_NORMALIZER	0x4000U
    545 
    546 #define SLAP_MR_TYPE_MASK		0x0F00U
    547 #define SLAP_MR_SUBTYPE_MASK		0x00F0U
    548 #define SLAP_MR_USAGE			0x000FU
    549 
    550 #define SLAP_MR_NONE			0x0000U
    551 #define SLAP_MR_EQUALITY		0x0100U
    552 #define SLAP_MR_ORDERING		0x0200U
    553 #define SLAP_MR_SUBSTR			0x0400U
    554 #define SLAP_MR_EXT			0x0800U /* implicitly extensible */
    555 #define	SLAP_MR_ORDERED_INDEX		0x1000U
    556 #ifdef LDAP_COMP_MATCH
    557 #define SLAP_MR_COMPONENT		0x2000U
    558 #endif
    559 
    560 #define SLAP_MR_EQUALITY_APPROX	( SLAP_MR_EQUALITY | 0x0010U )
    561 
    562 #define SLAP_MR_SUBSTR_INITIAL	( SLAP_MR_SUBSTR | 0x0010U )
    563 #define SLAP_MR_SUBSTR_ANY	( SLAP_MR_SUBSTR | 0x0020U )
    564 #define SLAP_MR_SUBSTR_FINAL	( SLAP_MR_SUBSTR | 0x0040U )
    565 
    566 
    567 /*
    568  * The asserted value, depending on the particular usage,
    569  * is expected to conform to either the assertion syntax
    570  * or the attribute syntax.   In some cases, the syntax of
    571  * the value is known.  If so, these flags indicate which
    572  * syntax the value is expected to conform to.  If not,
    573  * neither of these flags is set (until the syntax of the
    574  * provided value is determined).  If the value is of the
    575  * attribute syntax, the flag is changed once a value of
    576  * the assertion syntax is derived from the provided value.
    577  */
    578 #define SLAP_MR_VALUE_OF_ASSERTION_SYNTAX	0x0001U
    579 #define SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX	0x0002U
    580 #define SLAP_MR_VALUE_OF_SYNTAX			(SLAP_MR_VALUE_OF_ASSERTION_SYNTAX|SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX)
    581 #define SLAP_MR_DENORMALIZE			(SLAP_MR_MUTATION_NORMALIZER)
    582 
    583 #define SLAP_MR_IS_VALUE_OF_ATTRIBUTE_SYNTAX( usage ) \
    584 	((usage) & SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX )
    585 #define SLAP_MR_IS_VALUE_OF_ASSERTION_SYNTAX( usage ) \
    586 	((usage) & SLAP_MR_VALUE_OF_ASSERTION_SYNTAX )
    587 #ifdef LDAP_DEBUG
    588 #define SLAP_MR_IS_VALUE_OF_SYNTAX( usage ) \
    589 	((usage) & SLAP_MR_VALUE_OF_SYNTAX)
    590 #else
    591 #define SLAP_MR_IS_VALUE_OF_SYNTAX( usage )	(1)
    592 #endif
    593 #define SLAP_MR_IS_DENORMALIZE( usage ) \
    594 	((usage) & SLAP_MR_DENORMALIZE )
    595 
    596 /* either or both the asserted value or attribute value
    597  * may be provided in normalized form
    598  */
    599 #define SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH		0x0004U
    600 #define SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH	0x0008U
    601 
    602 #define SLAP_IS_MR_ASSERTION_SYNTAX_MATCH( usage ) \
    603 	(!((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_MATCH))
    604 #define SLAP_IS_MR_ATTRIBUTE_SYNTAX_MATCH( usage ) \
    605 	((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_MATCH)
    606 
    607 #define SLAP_IS_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH( usage ) \
    608 	(((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH) \
    609 		== SLAP_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH)
    610 #define SLAP_IS_MR_ATTRIBUTE_SYNTAX_NONCONVERTED_MATCH( usage ) \
    611 	(((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH) \
    612 		== SLAP_MR_ATTRIBUTE_SYNTAX_MATCH)
    613 
    614 #define SLAP_IS_MR_ASSERTED_VALUE_NORMALIZED_MATCH( usage ) \
    615 	((usage) & SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH )
    616 #define SLAP_IS_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH( usage ) \
    617 	((usage) & SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH )
    618 
    619 	Syntax			*smr_syntax;
    620 	slap_mr_convert_func	*smr_convert;
    621 	slap_mr_normalize_func	*smr_normalize;
    622 	slap_mr_match_func	*smr_match;
    623 	slap_mr_indexer_func	*smr_indexer;
    624 	slap_mr_filter_func	*smr_filter;
    625 
    626 	/*
    627 	 * null terminated array of syntaxes compatible with this syntax
    628 	 * note: when MS_EXT is set, this MUST NOT contain the assertion
    629 	 * syntax of the rule.  When MS_EXT is not set, it MAY.
    630 	 */
    631 	Syntax			**smr_compat_syntaxes;
    632 
    633 	/*
    634 	 * For equality rules, refers to an associated approximate rule.
    635 	 * For non-equality rules, refers to an associated equality rule.
    636 	 */
    637 	MatchingRule	*smr_associated;
    638 
    639 #define SLAP_MR_ASSOCIATED(mr,amr)	\
    640 	(((mr) == (amr)) || ((mr)->smr_associated == (amr)))
    641 
    642 	LDAP_SLIST_ENTRY(MatchingRule)	smr_next;
    643 
    644 #define smr_oid				smr_mrule.mr_oid
    645 #define smr_names			smr_mrule.mr_names
    646 #define smr_desc			smr_mrule.mr_desc
    647 #define smr_obsolete		smr_mrule.mr_obsolete
    648 #define smr_syntax_oid		smr_mrule.mr_syntax_oid
    649 #define smr_extensions		smr_mrule.mr_extensions
    650 };
    651 
    652 struct MatchingRuleUse {
    653 	LDAPMatchingRuleUse		smru_mruleuse;
    654 	MatchingRule			*smru_mr;
    655 	/* RFC 4512 string representation */
    656 	struct berval			smru_str;
    657 
    658 	LDAP_SLIST_ENTRY(MatchingRuleUse) smru_next;
    659 
    660 #define smru_oid			smru_mruleuse.mru_oid
    661 #define smru_names			smru_mruleuse.mru_names
    662 #define smru_desc			smru_mruleuse.mru_desc
    663 #define smru_obsolete			smru_mruleuse.mru_obsolete
    664 #define smru_applies_oids		smru_mruleuse.mru_applies_oids
    665 
    666 #define smru_usage			smru_mr->smr_usage
    667 } /* MatchingRuleUse */ ;
    668 
    669 typedef struct slap_mrule_defs_rec {
    670 	char *						mrd_desc;
    671 	slap_mask_t					mrd_usage;
    672 	char **						mrd_compat_syntaxes;
    673 	slap_mr_convert_func *		mrd_convert;
    674 	slap_mr_normalize_func *	mrd_normalize;
    675 	slap_mr_match_func *		mrd_match;
    676 	slap_mr_indexer_func *		mrd_indexer;
    677 	slap_mr_filter_func *		mrd_filter;
    678 
    679 	/* For equality rule, this may refer to an associated approximate rule */
    680 	/* For non-equality rule, this may refer to an associated equality rule */
    681 	char *						mrd_associated;
    682 } slap_mrule_defs_rec;
    683 
    684 typedef int (AttributeTypeSchemaCheckFN)(
    685 	BackendDB *be,
    686 	Entry *e,
    687 	Attribute *attr,
    688 	const char** text,
    689 	char *textbuf, size_t textlen );
    690 
    691 struct AttributeType {
    692 	LDAPAttributeType		sat_atype;
    693 	struct berval			sat_cname;
    694 	AttributeType			*sat_sup;
    695 	AttributeType			**sat_subtypes;
    696 	MatchingRule			*sat_equality;
    697 	MatchingRule			*sat_approx;
    698 	MatchingRule			*sat_ordering;
    699 	MatchingRule			*sat_substr;
    700 	Syntax				*sat_syntax;
    701 
    702 	AttributeTypeSchemaCheckFN	*sat_check;
    703 	char				*sat_oidmacro;	/* attribute OID */
    704 	char				*sat_soidmacro;	/* syntax OID */
    705 
    706 #define SLAP_AT_NONE			0x0000U
    707 #define SLAP_AT_ABSTRACT		0x0100U /* cannot be instantiated */
    708 #define SLAP_AT_FINAL			0x0200U /* cannot be subtyped */
    709 #ifdef SLAP_SCHEMA_EXPOSE
    710 #define SLAP_AT_HIDE			0x0000U /* publish everything */
    711 #else
    712 #define SLAP_AT_HIDE			0x8000U /* hide attribute */
    713 #endif
    714 #define	SLAP_AT_DYNAMIC			0x0400U	/* dynamically generated */
    715 
    716 #define SLAP_AT_MANAGEABLE		0x0800U	/* no-user-mod can be by-passed */
    717 
    718 /* Note: ORDERED values have an ordering specifically set by the
    719  * user, denoted by the {x} ordering prefix on the values.
    720  *
    721  * SORTED values are simply sorted by memcmp. SORTED values can
    722  * be efficiently located by binary search. ORDERED values have no
    723  * such advantage. An attribute cannot have both properties.
    724  */
    725 #define	SLAP_AT_ORDERED_VAL		0x0001U /* values are ordered */
    726 #define	SLAP_AT_ORDERED_SIB		0x0002U /* siblings are ordered */
    727 #define	SLAP_AT_ORDERED			0x0003U /* value has order index */
    728 
    729 #define	SLAP_AT_SORTED_VAL		0x0010U	/* values should be sorted */
    730 
    731 #define	SLAP_AT_HARDCODE		0x10000U	/* hardcoded schema */
    732 #define	SLAP_AT_DELETED			0x20000U
    733 
    734 	slap_mask_t			sat_flags;
    735 
    736 	LDAP_STAILQ_ENTRY(AttributeType) sat_next;
    737 
    738 #define sat_oid				sat_atype.at_oid
    739 #define sat_names			sat_atype.at_names
    740 #define sat_desc			sat_atype.at_desc
    741 #define sat_obsolete			sat_atype.at_obsolete
    742 #define sat_sup_oid			sat_atype.at_sup_oid
    743 #define sat_equality_oid		sat_atype.at_equality_oid
    744 #define sat_ordering_oid		sat_atype.at_ordering_oid
    745 #define sat_substr_oid			sat_atype.at_substr_oid
    746 #define sat_syntax_oid			sat_atype.at_syntax_oid
    747 #define sat_single_value		sat_atype.at_single_value
    748 #define sat_collective			sat_atype.at_collective
    749 #define sat_no_user_mod			sat_atype.at_no_user_mod
    750 #define sat_usage			sat_atype.at_usage
    751 #define sat_extensions			sat_atype.at_extensions
    752 
    753 	AttributeDescription		*sat_ad;
    754 	ldap_pvt_thread_mutex_t		sat_ad_mutex;
    755 };
    756 
    757 #define is_at_operational(at)	((at)->sat_usage)
    758 #define is_at_single_value(at)	((at)->sat_single_value)
    759 #define is_at_collective(at)	((at)->sat_collective)
    760 #define is_at_obsolete(at)		((at)->sat_obsolete)
    761 #define is_at_no_user_mod(at)	((at)->sat_no_user_mod)
    762 
    763 typedef int (ObjectClassSchemaCheckFN)(
    764 	BackendDB *be,
    765 	Entry *e,
    766 	ObjectClass *oc,
    767 	const char** text,
    768 	char *textbuf, size_t textlen );
    769 
    770 struct ObjectClass {
    771 	LDAPObjectClass			soc_oclass;
    772 	struct berval			soc_cname;
    773 	ObjectClass			**soc_sups;
    774 	AttributeType			**soc_required;
    775 	AttributeType			**soc_allowed;
    776 	ObjectClassSchemaCheckFN	*soc_check;
    777 	char				*soc_oidmacro;
    778 	slap_mask_t			soc_flags;
    779 #define soc_oid				soc_oclass.oc_oid
    780 #define soc_names			soc_oclass.oc_names
    781 #define soc_desc			soc_oclass.oc_desc
    782 #define soc_obsolete			soc_oclass.oc_obsolete
    783 #define soc_sup_oids			soc_oclass.oc_sup_oids
    784 #define soc_kind			soc_oclass.oc_kind
    785 #define soc_at_oids_must		soc_oclass.oc_at_oids_must
    786 #define soc_at_oids_may			soc_oclass.oc_at_oids_may
    787 #define soc_extensions			soc_oclass.oc_extensions
    788 
    789 	LDAP_STAILQ_ENTRY(ObjectClass)	soc_next;
    790 };
    791 
    792 #define	SLAP_OCF_SET_FLAGS	0x1
    793 #define	SLAP_OCF_CHECK_SUP	0x2
    794 #define	SLAP_OCF_MASK		(SLAP_OCF_SET_FLAGS|SLAP_OCF_CHECK_SUP)
    795 
    796 #define	SLAP_OC_ALIAS		0x0001
    797 #define	SLAP_OC_REFERRAL	0x0002
    798 #define	SLAP_OC_SUBENTRY	0x0004
    799 #define	SLAP_OC_DYNAMICOBJECT	0x0008
    800 #define	SLAP_OC_COLLECTIVEATTRIBUTESUBENTRY	0x0010
    801 #define SLAP_OC_GLUE		0x0020
    802 #define SLAP_OC_SYNCPROVIDERSUBENTRY		0x0040
    803 #define SLAP_OC_SYNCCONSUMERSUBENTRY		0x0080
    804 #define	SLAP_OC__MASK		0x00FF
    805 #define	SLAP_OC__END		0x0100
    806 #define SLAP_OC_OPERATIONAL	0x4000
    807 #ifdef SLAP_SCHEMA_EXPOSE
    808 #define SLAP_OC_HIDE		0x0000
    809 #else
    810 #define SLAP_OC_HIDE		0x8000
    811 #endif
    812 #define	SLAP_OC_HARDCODE	0x10000U	/* This is hardcoded schema */
    813 #define	SLAP_OC_DELETED		0x20000U
    814 
    815 /*
    816  * DIT content rule
    817  */
    818 struct ContentRule {
    819 	LDAPContentRule		scr_crule;
    820 	ObjectClass		*scr_sclass;
    821 	ObjectClass		**scr_auxiliaries;	/* optional */
    822 	AttributeType		**scr_required;		/* optional */
    823 	AttributeType		**scr_allowed;		/* optional */
    824 	AttributeType		**scr_precluded;	/* optional */
    825 #define scr_oid			scr_crule.cr_oid
    826 #define scr_names		scr_crule.cr_names
    827 #define scr_desc		scr_crule.cr_desc
    828 #define scr_obsolete		scr_crule.cr_obsolete
    829 #define scr_oc_oids_aux		scr_crule.cr_oc_oids_aux
    830 #define scr_at_oids_must	scr_crule.cr_at_oids_must
    831 #define scr_at_oids_may		scr_crule.cr_at_oids_may
    832 #define scr_at_oids_not		scr_crule.cr_at_oids_not
    833 
    834 	char			*scr_oidmacro;
    835 #define	SLAP_CR_HARDCODE	0x10000U
    836 	int			scr_flags;
    837 
    838 	LDAP_STAILQ_ENTRY( ContentRule ) scr_next;
    839 };
    840 
    841 /* Represents a recognized attribute description ( type + options ). */
    842 struct AttributeDescription {
    843 	AttributeDescription	*ad_next;
    844 	AttributeType		*ad_type;	/* attribute type, must be specified */
    845 	struct berval		ad_cname;	/* canonical name, must be specified */
    846 	struct berval		ad_tags;	/* empty if no tagging options */
    847 	unsigned ad_flags;
    848 #define SLAP_DESC_NONE		0x00U
    849 #define SLAP_DESC_BINARY	0x01U
    850 #define SLAP_DESC_TAG_RANGE	0x80U
    851 #define SLAP_DESC_TEMPORARY	0x1000U
    852 	unsigned ad_index;
    853 };
    854 
    855 /* flags to slap_*2undef_ad to register undefined (0, the default)
    856  * or proxied (SLAP_AD_PROXIED) AttributeDescriptions; the additional
    857  * SLAP_AD_NOINSERT is to lookup without insert */
    858 #define SLAP_AD_UNDEF		0x00U
    859 #define SLAP_AD_PROXIED		0x01U
    860 #define	SLAP_AD_NOINSERT	0x02U
    861 
    862 #define	SLAP_AN_OCEXCLUDE	0x01
    863 #define	SLAP_AN_OCINITED	0x02
    864 
    865 struct AttributeName {
    866 	struct berval		an_name;
    867 	AttributeDescription	*an_desc;
    868 	int			an_flags;
    869 	ObjectClass		*an_oc;
    870 };
    871 
    872 #define slap_ad_is_tagged(ad)			( (ad)->ad_tags.bv_len != 0 )
    873 #define slap_ad_is_tag_range(ad)	\
    874 	( ((ad)->ad_flags & SLAP_DESC_TAG_RANGE) ? 1 : 0 )
    875 #define slap_ad_is_binary(ad)		\
    876 	( ((ad)->ad_flags & SLAP_DESC_BINARY) ? 1 : 0 )
    877 
    878 /*
    879  * pointers to schema elements used internally
    880  */
    881 struct slap_internal_schema {
    882 	/* objectClass */
    883 	ObjectClass *si_oc_top;
    884 	ObjectClass *si_oc_extensibleObject;
    885 	ObjectClass *si_oc_alias;
    886 	ObjectClass *si_oc_referral;
    887 	ObjectClass *si_oc_rootdse;
    888 	ObjectClass *si_oc_subentry;
    889 	ObjectClass *si_oc_subschema;
    890 	ObjectClass *si_oc_collectiveAttributeSubentry;
    891 	ObjectClass *si_oc_dynamicObject;
    892 
    893 	ObjectClass *si_oc_glue;
    894 	ObjectClass *si_oc_syncConsumerSubentry;
    895 	ObjectClass *si_oc_syncProviderSubentry;
    896 
    897 	/* objectClass attribute descriptions */
    898 	AttributeDescription *si_ad_objectClass;
    899 
    900 	/* operational attribute descriptions */
    901 	AttributeDescription *si_ad_structuralObjectClass;
    902 	AttributeDescription *si_ad_creatorsName;
    903 	AttributeDescription *si_ad_createTimestamp;
    904 	AttributeDescription *si_ad_modifiersName;
    905 	AttributeDescription *si_ad_modifyTimestamp;
    906 	AttributeDescription *si_ad_hasSubordinates;
    907 	AttributeDescription *si_ad_subschemaSubentry;
    908 	AttributeDescription *si_ad_collectiveSubentries;
    909 	AttributeDescription *si_ad_collectiveExclusions;
    910 	AttributeDescription *si_ad_entryDN;
    911 	AttributeDescription *si_ad_entryUUID;
    912 	AttributeDescription *si_ad_entryCSN;
    913 	AttributeDescription *si_ad_namingCSN;
    914 
    915 	AttributeDescription *si_ad_dseType;
    916 	AttributeDescription *si_ad_syncreplCookie;
    917 	AttributeDescription *si_ad_syncTimestamp;
    918 	AttributeDescription *si_ad_contextCSN;
    919 
    920 	/* root DSE attribute descriptions */
    921 	AttributeDescription *si_ad_altServer;
    922 	AttributeDescription *si_ad_namingContexts;
    923 	AttributeDescription *si_ad_supportedControl;
    924 	AttributeDescription *si_ad_supportedExtension;
    925 	AttributeDescription *si_ad_supportedLDAPVersion;
    926 	AttributeDescription *si_ad_supportedSASLMechanisms;
    927 	AttributeDescription *si_ad_supportedFeatures;
    928 	AttributeDescription *si_ad_monitorContext;
    929 	AttributeDescription *si_ad_vendorName;
    930 	AttributeDescription *si_ad_vendorVersion;
    931 	AttributeDescription *si_ad_configContext;
    932 
    933 	/* subentry attribute descriptions */
    934 	AttributeDescription *si_ad_administrativeRole;
    935 	AttributeDescription *si_ad_subtreeSpecification;
    936 
    937 	/* subschema subentry attribute descriptions */
    938 	AttributeDescription *si_ad_attributeTypes;
    939 	AttributeDescription *si_ad_ditContentRules;
    940 	AttributeDescription *si_ad_ditStructureRules;
    941 	AttributeDescription *si_ad_ldapSyntaxes;
    942 	AttributeDescription *si_ad_matchingRules;
    943 	AttributeDescription *si_ad_matchingRuleUse;
    944 	AttributeDescription *si_ad_nameForms;
    945 	AttributeDescription *si_ad_objectClasses;
    946 
    947 	/* Aliases & Referrals */
    948 	AttributeDescription *si_ad_aliasedObjectName;
    949 	AttributeDescription *si_ad_ref;
    950 
    951 	/* Access Control Internals */
    952 	AttributeDescription *si_ad_entry;
    953 	AttributeDescription *si_ad_children;
    954 	AttributeDescription *si_ad_saslAuthzTo;
    955 	AttributeDescription *si_ad_saslAuthzFrom;
    956 
    957 	/* dynamic entries */
    958 	AttributeDescription *si_ad_entryTtl;
    959 	AttributeDescription *si_ad_dynamicSubtrees;
    960 
    961 	/* Other attributes descriptions */
    962 	AttributeDescription *si_ad_distinguishedName;
    963 	AttributeDescription *si_ad_name;
    964 	AttributeDescription *si_ad_cn;
    965 	AttributeDescription *si_ad_uid;
    966 	AttributeDescription *si_ad_uidNumber;
    967 	AttributeDescription *si_ad_gidNumber;
    968 	AttributeDescription *si_ad_userPassword;
    969 	AttributeDescription *si_ad_labeledURI;
    970 #ifdef SLAPD_AUTHPASSWD
    971 	AttributeDescription *si_ad_authPassword;
    972 	AttributeDescription *si_ad_authPasswordSchemes;
    973 #endif
    974 	AttributeDescription *si_ad_description;
    975 	AttributeDescription *si_ad_seeAlso;
    976 
    977 	/* privateKeys */
    978 	AttributeDescription *si_ad_pKCS8PrivateKey;
    979 
    980 	/* ppolicy lastbind equivalent */
    981 	AttributeDescription *si_ad_pwdLastSuccess;
    982 
    983 	/* Undefined Attribute Type */
    984 	AttributeType	*si_at_undefined;
    985 
    986 	/* "Proxied" Attribute Type */
    987 	AttributeType	*si_at_proxied;
    988 
    989 	/* Matching Rules */
    990 	MatchingRule	*si_mr_distinguishedNameMatch;
    991 	MatchingRule	*si_mr_dnSubtreeMatch;
    992 	MatchingRule	*si_mr_dnOneLevelMatch;
    993 	MatchingRule	*si_mr_dnSubordinateMatch;
    994 	MatchingRule	*si_mr_dnSuperiorMatch;
    995 	MatchingRule    *si_mr_caseExactMatch;
    996 	MatchingRule    *si_mr_caseExactSubstringsMatch;
    997 	MatchingRule    *si_mr_caseExactIA5Match;
    998 	MatchingRule	*si_mr_integerMatch;
    999 	MatchingRule    *si_mr_integerFirstComponentMatch;
   1000 	MatchingRule    *si_mr_objectIdentifierFirstComponentMatch;
   1001 	MatchingRule    *si_mr_caseIgnoreMatch;
   1002 	MatchingRule    *si_mr_caseIgnoreListMatch;
   1003 
   1004 	/* Syntaxes */
   1005 	Syntax		*si_syn_directoryString;
   1006 	Syntax		*si_syn_distinguishedName;
   1007 	Syntax		*si_syn_integer;
   1008 	Syntax		*si_syn_octetString;
   1009 
   1010 	/* Schema Syntaxes */
   1011 	Syntax		*si_syn_attributeTypeDesc;
   1012 	Syntax		*si_syn_ditContentRuleDesc;
   1013 	Syntax		*si_syn_ditStructureRuleDesc;
   1014 	Syntax		*si_syn_ldapSyntaxDesc;
   1015 	Syntax		*si_syn_matchingRuleDesc;
   1016 	Syntax		*si_syn_matchingRuleUseDesc;
   1017 	Syntax		*si_syn_nameFormDesc;
   1018 	Syntax		*si_syn_objectClassDesc;
   1019 };
   1020 
   1021 struct AttributeAssertion {
   1022 	AttributeDescription	*aa_desc;
   1023 	struct berval		aa_value;
   1024 #ifdef LDAP_COMP_MATCH
   1025 	ComponentFilter		*aa_cf;		/* for attribute aliasing */
   1026 #endif
   1027 };
   1028 #ifdef LDAP_COMP_MATCH
   1029 #define ATTRIBUTEASSERTION_INIT { NULL, BER_BVNULL, NULL }
   1030 #else
   1031 #define ATTRIBUTEASSERTION_INIT { NULL, BER_BVNULL }
   1032 #endif
   1033 
   1034 struct SubstringsAssertion {
   1035 	AttributeDescription	*sa_desc;
   1036 	struct berval		sa_initial;
   1037 	struct berval		*sa_any;
   1038 	struct berval		sa_final;
   1039 };
   1040 
   1041 struct MatchingRuleAssertion {
   1042 	AttributeDescription	*ma_desc;	/* optional */
   1043 	struct berval		ma_value;	/* required */
   1044 	MatchingRule		*ma_rule;	/* optional */
   1045 	struct berval		ma_rule_text;	/* optional */
   1046 	int			ma_dnattrs;	/* boolean */
   1047 #ifdef LDAP_COMP_MATCH
   1048 	ComponentFilter		*ma_cf;	/* component filter */
   1049 #endif
   1050 };
   1051 
   1052 /*
   1053  * represents a search filter
   1054  */
   1055 struct Filter {
   1056 	ber_tag_t	f_choice;	/* values taken from ldap.h, plus: */
   1057 #define SLAPD_FILTER_COMPUTED		0
   1058 #define SLAPD_FILTER_MASK			0x7fff
   1059 #define SLAPD_FILTER_UNDEFINED		0x8000
   1060 
   1061 	union f_un_u {
   1062 		/* precomputed result */
   1063 		ber_int_t		f_un_result;
   1064 
   1065 		/* present */
   1066 		AttributeDescription	*f_un_desc;
   1067 
   1068 		/* simple value assertion */
   1069 		AttributeAssertion	*f_un_ava;
   1070 
   1071 		/* substring assertion */
   1072 		SubstringsAssertion	*f_un_ssa;
   1073 
   1074 		/* matching rule assertion */
   1075 		MatchingRuleAssertion	*f_un_mra;
   1076 
   1077 #define f_desc			f_un.f_un_desc
   1078 #define f_ava			f_un.f_un_ava
   1079 #define f_av_desc		f_un.f_un_ava->aa_desc
   1080 #define f_av_value		f_un.f_un_ava->aa_value
   1081 #define f_sub			f_un.f_un_ssa
   1082 #define f_sub_desc		f_un.f_un_ssa->sa_desc
   1083 #define f_sub_initial		f_un.f_un_ssa->sa_initial
   1084 #define f_sub_any		f_un.f_un_ssa->sa_any
   1085 #define f_sub_final		f_un.f_un_ssa->sa_final
   1086 #define f_mra			f_un.f_un_mra
   1087 #define f_mr_rule		f_un.f_un_mra->ma_rule
   1088 #define f_mr_rule_text		f_un.f_un_mra->ma_rule_text
   1089 #define f_mr_desc		f_un.f_un_mra->ma_desc
   1090 #define f_mr_value		f_un.f_un_mra->ma_value
   1091 #define	f_mr_dnattrs		f_un.f_un_mra->ma_dnattrs
   1092 
   1093 		/* and, or, not */
   1094 		Filter			*f_un_complex;
   1095 	} f_un;
   1096 
   1097 #define f_result	f_un.f_un_result
   1098 #define f_and		f_un.f_un_complex
   1099 #define f_or		f_un.f_un_complex
   1100 #define f_not		f_un.f_un_complex
   1101 #define f_list		f_un.f_un_complex
   1102 
   1103 	Filter		*f_next;
   1104 };
   1105 
   1106 /* compare routines can return undefined */
   1107 #define SLAPD_COMPARE_UNDEFINED	((ber_int_t) -1)
   1108 
   1109 struct ValuesReturnFilter {
   1110 	ber_tag_t	vrf_choice;
   1111 
   1112 	union vrf_un_u {
   1113 		/* precomputed result */
   1114 		ber_int_t vrf_un_result;
   1115 
   1116 		/* DN */
   1117 		char *vrf_un_dn;
   1118 
   1119 		/* present */
   1120 		AttributeDescription *vrf_un_desc;
   1121 
   1122 		/* simple value assertion */
   1123 		AttributeAssertion *vrf_un_ava;
   1124 
   1125 		/* substring assertion */
   1126 		SubstringsAssertion *vrf_un_ssa;
   1127 
   1128 		/* matching rule assertion */
   1129 		MatchingRuleAssertion *vrf_un_mra;
   1130 
   1131 #define vrf_result		vrf_un.vrf_un_result
   1132 #define vrf_dn			vrf_un.vrf_un_dn
   1133 #define vrf_desc		vrf_un.vrf_un_desc
   1134 #define vrf_ava			vrf_un.vrf_un_ava
   1135 #define vrf_av_desc		vrf_un.vrf_un_ava->aa_desc
   1136 #define vrf_av_value	vrf_un.vrf_un_ava->aa_value
   1137 #define vrf_ssa			vrf_un.vrf_un_ssa
   1138 #define vrf_sub			vrf_un.vrf_un_ssa
   1139 #define vrf_sub_desc	vrf_un.vrf_un_ssa->sa_desc
   1140 #define vrf_sub_initial	vrf_un.vrf_un_ssa->sa_initial
   1141 #define vrf_sub_any		vrf_un.vrf_un_ssa->sa_any
   1142 #define vrf_sub_final	vrf_un.vrf_un_ssa->sa_final
   1143 #define vrf_mra			vrf_un.vrf_un_mra
   1144 #define vrf_mr_rule		vrf_un.vrf_un_mra->ma_rule
   1145 #define vrf_mr_rule_text	vrf_un.vrf_un_mra->ma_rule_text
   1146 #define vrf_mr_desc		vrf_un.vrf_un_mra->ma_desc
   1147 #define vrf_mr_value		vrf_un.vrf_un_mra->ma_value
   1148 #define	vrf_mr_dnattrs	vrf_un.vrf_un_mra->ma_dnattrs
   1149 
   1150 
   1151 	} vrf_un;
   1152 
   1153 	ValuesReturnFilter	*vrf_next;
   1154 };
   1155 
   1156 /*
   1157  * represents an attribute (description + values)
   1158  * desc, vals, nvals, numvals fields must align with Modification
   1159  */
   1160 struct Attribute {
   1161 	AttributeDescription	*a_desc;
   1162 	BerVarray		a_vals;		/* preserved values */
   1163 	BerVarray		a_nvals;	/* normalized values */
   1164 	unsigned		a_numvals;	/* number of vals */
   1165 	unsigned		a_flags;
   1166 #define SLAP_ATTR_IXADD			0x1U
   1167 #define SLAP_ATTR_IXDEL			0x2U
   1168 #define SLAP_ATTR_DONT_FREE_DATA	0x4U
   1169 #define SLAP_ATTR_DONT_FREE_VALS	0x8U
   1170 #define	SLAP_ATTR_SORTED_VALS		0x10U	/* values are sorted */
   1171 #define	SLAP_ATTR_BIG_MULTI		0x20U	/* for backends */
   1172 
   1173 /* These flags persist across an attr_dup() */
   1174 #define	SLAP_ATTR_PERSISTENT_FLAGS \
   1175 	(SLAP_ATTR_SORTED_VALS|SLAP_ATTR_BIG_MULTI)
   1176 
   1177 	Attribute		*a_next;
   1178 #ifdef LDAP_COMP_MATCH
   1179 	ComponentData		*a_comp_data;	/* component values */
   1180 #endif
   1181 };
   1182 
   1183 
   1184 /*
   1185  * the id used in the indexes to refer to an entry
   1186  */
   1187 typedef unsigned long	ID;
   1188 #define NOID	((ID)~0)
   1189 
   1190 typedef struct EntryHeader {
   1191 	struct berval bv;
   1192 	char *data;
   1193 	int nattrs;
   1194 	int nvals;
   1195 } EntryHeader;
   1196 
   1197 /*
   1198  * represents an entry in core
   1199  */
   1200 struct Entry {
   1201 	/*
   1202 	 * The ID field should only be changed before entry is
   1203 	 * inserted into a cache.  The ID value is backend
   1204 	 * specific.
   1205 	 */
   1206 	ID		e_id;
   1207 
   1208 	struct berval e_name;	/* name (DN) of this entry */
   1209 	struct berval e_nname;	/* normalized name (DN) of this entry */
   1210 
   1211 	/* for migration purposes */
   1212 #define e_dn e_name.bv_val
   1213 #define e_ndn e_nname.bv_val
   1214 
   1215 	Attribute	*e_attrs;	/* list of attributes + values */
   1216 
   1217 	slap_mask_t	e_ocflags;
   1218 
   1219 	struct berval	e_bv;		/* For entry_encode/entry_decode */
   1220 
   1221 	/* for use by the backend for any purpose */
   1222 	void*	e_private;
   1223 };
   1224 
   1225 /*
   1226  * A list of LDAPMods
   1227  * desc, values, nvalues, numvals must align with Attribute
   1228  */
   1229 struct Modification {
   1230 	AttributeDescription *sm_desc;
   1231 	BerVarray sm_values;
   1232 	BerVarray sm_nvalues;
   1233 	unsigned sm_numvals;
   1234 	short sm_op;
   1235 	short sm_flags;
   1236 /* Set for internal mods, will bypass ACL checks. Only needed when
   1237  * running as non-root user, for user modifiable attributes.
   1238  */
   1239 #define	SLAP_MOD_INTERNAL	0x01
   1240 #define	SLAP_MOD_MANAGING	0x02
   1241 	struct berval sm_type;
   1242 };
   1243 
   1244 struct Modifications {
   1245 	Modification	sml_mod;
   1246 #define sml_op		sml_mod.sm_op
   1247 #define sml_flags	sml_mod.sm_flags
   1248 #define sml_desc	sml_mod.sm_desc
   1249 #define	sml_type	sml_mod.sm_type
   1250 #define sml_values	sml_mod.sm_values
   1251 #define sml_nvalues	sml_mod.sm_nvalues
   1252 #define sml_numvals	sml_mod.sm_numvals
   1253 	Modifications	*sml_next;
   1254 };
   1255 
   1256 /*
   1257  * represents an access control list
   1258  */
   1259 typedef enum slap_access_t {
   1260 	ACL_INVALID_ACCESS = -1,
   1261 	ACL_NONE = 0,
   1262 	ACL_DISCLOSE,
   1263 	ACL_AUTH,
   1264 	ACL_COMPARE,
   1265 	ACL_SEARCH,
   1266 	ACL_READ,
   1267 	ACL_WRITE_,
   1268 	ACL_MANAGE,
   1269 
   1270 	/* always leave at end of levels but not greater than ACL_LEVEL_MASK */
   1271 	ACL_LAST,
   1272 
   1273 	/* ACL level mask and modifiers */
   1274 	ACL_LEVEL_MASK = 0x000f,
   1275 	ACL_QUALIFIER1 = 0x0100,
   1276 	ACL_QUALIFIER2 = 0x0200,
   1277 	ACL_QUALIFIER3 = 0x0400,
   1278 	ACL_QUALIFIER4 = 0x0800,
   1279 	ACL_QUALIFIER_MASK = 0x0f00,
   1280 
   1281 	/* write granularity */
   1282 	ACL_WADD = ACL_WRITE_|ACL_QUALIFIER1,
   1283 	ACL_WDEL = ACL_WRITE_|ACL_QUALIFIER2,
   1284 
   1285 	ACL_WRITE = ACL_WADD|ACL_WDEL
   1286 } slap_access_t;
   1287 
   1288 typedef enum slap_control_e {
   1289 	ACL_INVALID_CONTROL	= 0,
   1290 	ACL_STOP,
   1291 	ACL_CONTINUE,
   1292 	ACL_BREAK
   1293 } slap_control_t;
   1294 
   1295 typedef enum slap_style_e {
   1296 	ACL_STYLE_REGEX = 0,
   1297 	ACL_STYLE_EXPAND,
   1298 	ACL_STYLE_BASE,
   1299 	ACL_STYLE_ONE,
   1300 	ACL_STYLE_SUBTREE,
   1301 	ACL_STYLE_CHILDREN,
   1302 	ACL_STYLE_LEVEL,
   1303 	ACL_STYLE_ATTROF,
   1304 	ACL_STYLE_ANONYMOUS,
   1305 	ACL_STYLE_USERS,
   1306 	ACL_STYLE_SELF,
   1307 	ACL_STYLE_IP,
   1308 	ACL_STYLE_IPV6,
   1309 	ACL_STYLE_PATH,
   1310 
   1311 	ACL_STYLE_NONE
   1312 } slap_style_t;
   1313 
   1314 typedef struct AuthorizationInformation {
   1315 	ber_tag_t	sai_method;			/* LDAP_AUTH_* from <ldap.h> */
   1316 	struct berval	sai_mech;		/* SASL Mechanism */
   1317 	struct berval	sai_dn;			/* DN for reporting purposes */
   1318 	struct berval	sai_ndn;		/* Normalized DN */
   1319 
   1320 	/* Security Strength Factors */
   1321 	slap_ssf_t	sai_ssf;			/* Overall SSF */
   1322 	slap_ssf_t	sai_transport_ssf;	/* Transport SSF */
   1323 	slap_ssf_t	sai_tls_ssf;		/* TLS SSF */
   1324 	slap_ssf_t	sai_sasl_ssf;		/* SASL SSF */
   1325 } AuthorizationInformation;
   1326 
   1327 typedef struct config_args_s ConfigArgs;	/* slap-config.h */
   1328 typedef struct config_reply_s ConfigReply;	/* slap-config.h */
   1329 
   1330 #ifdef SLAP_DYNACL
   1331 
   1332 /*
   1333  * "dynamic" ACL infrastructure (for ACIs and more)
   1334  */
   1335 typedef int (slap_dynacl_parse) LDAP_P(( ConfigArgs *ca,
   1336 	const char *opts, slap_style_t, const char *, void **privp ));
   1337 typedef int (slap_dynacl_unparse) LDAP_P(( void *priv, struct berval *bv ));
   1338 typedef int (slap_dynacl_mask) LDAP_P((
   1339 		void			*priv,
   1340 		Operation		*op,
   1341 		Entry			*e,
   1342 		AttributeDescription	*desc,
   1343 		struct berval		*val,
   1344 		int			nmatch,
   1345 		regmatch_t		*matches,
   1346 		slap_access_t		*grant,
   1347 		slap_access_t		*deny ));
   1348 typedef int (slap_dynacl_destroy) LDAP_P(( void *priv ));
   1349 
   1350 typedef struct slap_dynacl_t {
   1351 	char			*da_name;
   1352 	slap_dynacl_parse	*da_parse;
   1353 	slap_dynacl_unparse	*da_unparse;
   1354 	slap_dynacl_mask	*da_mask;
   1355 	slap_dynacl_destroy	*da_destroy;
   1356 
   1357 	void			*da_private;
   1358 	struct slap_dynacl_t	*da_next;
   1359 } slap_dynacl_t;
   1360 #endif /* SLAP_DYNACL */
   1361 
   1362 /* the DN portion of the "by" part */
   1363 typedef struct slap_dn_access {
   1364 	/* DN pattern */
   1365 	AuthorizationInformation	a_dnauthz;
   1366 #define	a_pat			a_dnauthz.sai_dn
   1367 
   1368 	slap_style_t		a_style;
   1369 	int			a_level;
   1370 	int			a_self_level;
   1371 	AttributeDescription	*a_at;
   1372 	int			a_self;
   1373 	int 			a_expand;
   1374 } slap_dn_access;
   1375 
   1376 /* the "by" part */
   1377 typedef struct Access {
   1378 	slap_control_t a_type;
   1379 
   1380 /* strip qualifiers */
   1381 #define ACL_LEVEL(p)			((p) & ACL_LEVEL_MASK)
   1382 #define ACL_QUALIFIERS(p)		((p) & ~ACL_LEVEL_MASK)
   1383 
   1384 #define ACL_ACCESS2PRIV(access)		((0x01U << ACL_LEVEL((access))) | ACL_QUALIFIERS((access)))
   1385 
   1386 #define ACL_PRIV_NONE			ACL_ACCESS2PRIV( ACL_NONE )
   1387 #define ACL_PRIV_DISCLOSE		ACL_ACCESS2PRIV( ACL_DISCLOSE )
   1388 #define ACL_PRIV_AUTH			ACL_ACCESS2PRIV( ACL_AUTH )
   1389 #define ACL_PRIV_COMPARE		ACL_ACCESS2PRIV( ACL_COMPARE )
   1390 #define ACL_PRIV_SEARCH			ACL_ACCESS2PRIV( ACL_SEARCH )
   1391 #define ACL_PRIV_READ			ACL_ACCESS2PRIV( ACL_READ )
   1392 #define ACL_PRIV_WADD			ACL_ACCESS2PRIV( ACL_WADD )
   1393 #define ACL_PRIV_WDEL			ACL_ACCESS2PRIV( ACL_WDEL )
   1394 #define ACL_PRIV_WRITE			( ACL_PRIV_WADD | ACL_PRIV_WDEL )
   1395 #define ACL_PRIV_MANAGE			ACL_ACCESS2PRIV( ACL_MANAGE )
   1396 
   1397 /* NOTE: always use the highest level; current: 0x00ffUL */
   1398 #define ACL_PRIV_MASK			((ACL_ACCESS2PRIV(ACL_LAST) - 1) | ACL_QUALIFIER_MASK)
   1399 
   1400 /* priv flags */
   1401 #define ACL_PRIV_LEVEL			0x1000UL
   1402 #define ACL_PRIV_ADDITIVE		0x2000UL
   1403 #define ACL_PRIV_SUBSTRACTIVE		0x4000UL
   1404 
   1405 /* invalid privs */
   1406 #define ACL_PRIV_INVALID		0x0UL
   1407 
   1408 #define ACL_PRIV_ISSET(m,p)		(((m) & (p)) == (p))
   1409 #define ACL_PRIV_ASSIGN(m,p)		do { (m)  =  (p); } while(0)
   1410 #define ACL_PRIV_SET(m,p)		do { (m) |=  (p); } while(0)
   1411 #define ACL_PRIV_CLR(m,p)		do { (m) &= ~(p); } while(0)
   1412 
   1413 #define ACL_INIT(m)			ACL_PRIV_ASSIGN((m), ACL_PRIV_NONE)
   1414 #define ACL_INVALIDATE(m)		ACL_PRIV_ASSIGN((m), ACL_PRIV_INVALID)
   1415 
   1416 #define ACL_GRANT(m,a)			ACL_PRIV_ISSET((m),ACL_ACCESS2PRIV(a))
   1417 
   1418 #define ACL_IS_INVALID(m)		((m) == ACL_PRIV_INVALID)
   1419 
   1420 #define ACL_IS_LEVEL(m)			ACL_PRIV_ISSET((m),ACL_PRIV_LEVEL)
   1421 #define ACL_IS_ADDITIVE(m)		ACL_PRIV_ISSET((m),ACL_PRIV_ADDITIVE)
   1422 #define ACL_IS_SUBTRACTIVE(m)		ACL_PRIV_ISSET((m),ACL_PRIV_SUBSTRACTIVE)
   1423 
   1424 #define ACL_LVL_NONE			(ACL_PRIV_NONE|ACL_PRIV_LEVEL)
   1425 #define ACL_LVL_DISCLOSE		(ACL_PRIV_DISCLOSE|ACL_LVL_NONE)
   1426 #define ACL_LVL_AUTH			(ACL_PRIV_AUTH|ACL_LVL_DISCLOSE)
   1427 #define ACL_LVL_COMPARE			(ACL_PRIV_COMPARE|ACL_LVL_AUTH)
   1428 #define ACL_LVL_SEARCH			(ACL_PRIV_SEARCH|ACL_LVL_COMPARE)
   1429 #define ACL_LVL_READ			(ACL_PRIV_READ|ACL_LVL_SEARCH)
   1430 #define ACL_LVL_WADD			(ACL_PRIV_WADD|ACL_LVL_READ)
   1431 #define ACL_LVL_WDEL			(ACL_PRIV_WDEL|ACL_LVL_READ)
   1432 #define ACL_LVL_WRITE			(ACL_PRIV_WRITE|ACL_LVL_READ)
   1433 #define ACL_LVL_MANAGE			(ACL_PRIV_MANAGE|ACL_LVL_WRITE)
   1434 
   1435 #define ACL_LVL(m,l)			(((m)&ACL_PRIV_MASK) == ((l)&ACL_PRIV_MASK))
   1436 #define ACL_LVL_IS_NONE(m)		ACL_LVL((m),ACL_LVL_NONE)
   1437 #define ACL_LVL_IS_DISCLOSE(m)		ACL_LVL((m),ACL_LVL_DISCLOSE)
   1438 #define ACL_LVL_IS_AUTH(m)		ACL_LVL((m),ACL_LVL_AUTH)
   1439 #define ACL_LVL_IS_COMPARE(m)		ACL_LVL((m),ACL_LVL_COMPARE)
   1440 #define ACL_LVL_IS_SEARCH(m)		ACL_LVL((m),ACL_LVL_SEARCH)
   1441 #define ACL_LVL_IS_READ(m)		ACL_LVL((m),ACL_LVL_READ)
   1442 #define ACL_LVL_IS_WADD(m)		ACL_LVL((m),ACL_LVL_WADD)
   1443 #define ACL_LVL_IS_WDEL(m)		ACL_LVL((m),ACL_LVL_WDEL)
   1444 #define ACL_LVL_IS_WRITE(m)		ACL_LVL((m),ACL_LVL_WRITE)
   1445 #define ACL_LVL_IS_MANAGE(m)		ACL_LVL((m),ACL_LVL_MANAGE)
   1446 
   1447 #define ACL_LVL_ASSIGN_NONE(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_NONE)
   1448 #define ACL_LVL_ASSIGN_DISCLOSE(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_DISCLOSE)
   1449 #define ACL_LVL_ASSIGN_AUTH(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_AUTH)
   1450 #define ACL_LVL_ASSIGN_COMPARE(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_COMPARE)
   1451 #define ACL_LVL_ASSIGN_SEARCH(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_SEARCH)
   1452 #define ACL_LVL_ASSIGN_READ(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_READ)
   1453 #define ACL_LVL_ASSIGN_WADD(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_WADD)
   1454 #define ACL_LVL_ASSIGN_WDEL(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_WDEL)
   1455 #define ACL_LVL_ASSIGN_WRITE(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_WRITE)
   1456 #define ACL_LVL_ASSIGN_MANAGE(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_MANAGE)
   1457 
   1458 	slap_mask_t	a_access_mask;
   1459 
   1460 	/* DN pattern */
   1461 	slap_dn_access		a_dn;
   1462 #define a_dn_pat		a_dn.a_dnauthz.sai_dn
   1463 #define	a_dn_at			a_dn.a_at
   1464 #define	a_dn_self		a_dn.a_self
   1465 
   1466 	/* real DN pattern */
   1467 	slap_dn_access		a_realdn;
   1468 #define a_realdn_pat		a_realdn.a_dnauthz.sai_dn
   1469 #define	a_realdn_at		a_realdn.a_at
   1470 #define	a_realdn_self		a_realdn.a_self
   1471 
   1472 	/* used for ssf stuff
   1473 	 * NOTE: the ssf stuff in a_realdn is ignored */
   1474 #define	a_authz			a_dn.a_dnauthz
   1475 
   1476 	/* connection related stuff */
   1477 	slap_style_t a_peername_style;
   1478 	struct berval	a_peername_pat;
   1479 #ifdef LDAP_PF_INET6
   1480 	union {
   1481 		struct in6_addr	ax6;
   1482 		unsigned long	ax;
   1483 	}	ax_peername_addr,
   1484 		ax_peername_mask;
   1485 #define	a_peername_addr6	ax_peername_addr.ax6
   1486 #define	a_peername_addr		ax_peername_addr.ax
   1487 #define	a_peername_mask6	ax_peername_mask.ax6
   1488 #define	a_peername_mask		ax_peername_mask.ax
   1489 /* apparently, only s6_addr is portable;
   1490  * define a portable address mask comparison */
   1491 #define	slap_addr6_mask(val, msk, asr) ( \
   1492 	(((val)->s6_addr[0] & (msk)->s6_addr[0]) == (asr)->s6_addr[0]) \
   1493 	&& (((val)->s6_addr[1] & (msk)->s6_addr[1]) == (asr)->s6_addr[1]) \
   1494 	&& (((val)->s6_addr[2] & (msk)->s6_addr[2]) == (asr)->s6_addr[2]) \
   1495 	&& (((val)->s6_addr[3] & (msk)->s6_addr[3]) == (asr)->s6_addr[3]) \
   1496 	&& (((val)->s6_addr[4] & (msk)->s6_addr[4]) == (asr)->s6_addr[4]) \
   1497 	&& (((val)->s6_addr[5] & (msk)->s6_addr[5]) == (asr)->s6_addr[5]) \
   1498 	&& (((val)->s6_addr[6] & (msk)->s6_addr[6]) == (asr)->s6_addr[6]) \
   1499 	&& (((val)->s6_addr[7] & (msk)->s6_addr[7]) == (asr)->s6_addr[7]) \
   1500 	&& (((val)->s6_addr[8] & (msk)->s6_addr[8]) == (asr)->s6_addr[8]) \
   1501 	&& (((val)->s6_addr[9] & (msk)->s6_addr[9]) == (asr)->s6_addr[9]) \
   1502 	&& (((val)->s6_addr[10] & (msk)->s6_addr[10]) == (asr)->s6_addr[10]) \
   1503 	&& (((val)->s6_addr[11] & (msk)->s6_addr[11]) == (asr)->s6_addr[11]) \
   1504 	&& (((val)->s6_addr[12] & (msk)->s6_addr[12]) == (asr)->s6_addr[12]) \
   1505 	&& (((val)->s6_addr[13] & (msk)->s6_addr[13]) == (asr)->s6_addr[13]) \
   1506 	&& (((val)->s6_addr[14] & (msk)->s6_addr[14]) == (asr)->s6_addr[14]) \
   1507 	&& (((val)->s6_addr[15] & (msk)->s6_addr[15]) == (asr)->s6_addr[15]) \
   1508 	)
   1509 #else /* ! LDAP_PF_INET6 */
   1510 	unsigned long	a_peername_addr,
   1511 			a_peername_mask;
   1512 #endif /* ! LDAP_PF_INET6 */
   1513 	int		a_peername_port;
   1514 
   1515 	slap_style_t a_sockname_style;
   1516 	struct berval	a_sockname_pat;
   1517 
   1518 	slap_style_t a_domain_style;
   1519 	struct berval	a_domain_pat;
   1520 	int		a_domain_expand;
   1521 
   1522 	slap_style_t a_sockurl_style;
   1523 	struct berval	a_sockurl_pat;
   1524 	slap_style_t a_set_style;
   1525 	struct berval	a_set_pat;
   1526 
   1527 #ifdef SLAP_DYNACL
   1528 	slap_dynacl_t		*a_dynacl;
   1529 #endif /* SLAP_DYNACL */
   1530 
   1531 	/* ACL Groups */
   1532 	slap_style_t a_group_style;
   1533 	struct berval	a_group_pat;
   1534 	ObjectClass		*a_group_oc;
   1535 	AttributeDescription	*a_group_at;
   1536 
   1537 	struct Access		*a_next;
   1538 } Access;
   1539 
   1540 /* the "to" part */
   1541 typedef struct AccessControl {
   1542 	/* "to" part: the entries this acl applies to */
   1543 	Filter		*acl_filter;
   1544 	slap_style_t acl_dn_style;
   1545 	regex_t		acl_dn_re;
   1546 	struct berval	acl_dn_pat;
   1547 	AttributeName	*acl_attrs;
   1548 	MatchingRule	*acl_attrval_mr;
   1549 	slap_style_t	acl_attrval_style;
   1550 	regex_t		acl_attrval_re;
   1551 	struct berval	acl_attrval;
   1552 
   1553 	/* "by" part: list of who has what access to the entries */
   1554 	Access	*acl_access;
   1555 
   1556 	struct AccessControl	*acl_next;
   1557 } AccessControl;
   1558 
   1559 typedef struct AccessControlState {
   1560 	/* Access state */
   1561 
   1562 	/* The stored state is valid when requesting as_access access
   1563 	 * to the as_desc attributes.	 */
   1564 	AttributeDescription *as_desc;
   1565 	slap_access_t	as_access;
   1566 
   1567 	/* Value dependent acl where processing can restart */
   1568 	AccessControl  *as_vd_acl;
   1569 	int as_vd_acl_present;
   1570 	int as_vd_acl_count;
   1571 	slap_mask_t		as_vd_mask;
   1572 
   1573 	/* The cached result after evaluating a value independent attr.
   1574 	 * Only valid when != -1 and as_vd_acl == NULL */
   1575 	int as_result;
   1576 
   1577 	/* True if started to process frontend ACLs */
   1578 	int as_fe_done;
   1579 } AccessControlState;
   1580 #define ACL_STATE_INIT { NULL, ACL_NONE, NULL, 0, 0, ACL_PRIV_NONE, -1, 0 }
   1581 
   1582 typedef struct AclRegexMatches {
   1583 	int dn_count;
   1584         regmatch_t dn_data[MAXREMATCHES];
   1585 	int val_count;
   1586         regmatch_t val_data[MAXREMATCHES];
   1587 } AclRegexMatches;
   1588 
   1589 /*
   1590  * Backend-info
   1591  * represents a backend
   1592  */
   1593 
   1594 typedef LDAP_STAILQ_HEAD(BeI, BackendInfo) slap_bi_head;
   1595 typedef LDAP_STAILQ_HEAD(BeDB, BackendDB) slap_be_head;
   1596 
   1597 LDAP_SLAPD_V (int) nBackendInfo;
   1598 LDAP_SLAPD_V (int) nBackendDB;
   1599 LDAP_SLAPD_V (slap_bi_head) backendInfo;
   1600 LDAP_SLAPD_V (slap_be_head) backendDB;
   1601 LDAP_SLAPD_V (BackendDB *) frontendDB;
   1602 
   1603 LDAP_SLAPD_V (int) slapMode;
   1604 #define SLAP_UNDEFINED_MODE	0x0000
   1605 #define SLAP_SERVER_MODE	0x0001
   1606 #define SLAP_TOOL_MODE		0x0002
   1607 #define SLAP_MODE			0x0003
   1608 
   1609 #define SLAP_TRUNCATE_MODE	0x0100
   1610 #define	SLAP_TOOL_READMAIN	0x0200
   1611 #define	SLAP_TOOL_READONLY	0x0400
   1612 #define	SLAP_TOOL_QUICK		0x0800
   1613 #define SLAP_TOOL_NO_SCHEMA_CHECK	0x1000
   1614 #define SLAP_TOOL_VALUE_CHECK	0x2000
   1615 #define SLAP_TOOL_DRYRUN	0x4000
   1616 
   1617 #define SLAP_SERVER_RUNNING	0x8000
   1618 
   1619 #define SB_TLS_DEFAULT		(-1)
   1620 #define SB_TLS_OFF		0
   1621 #define SB_TLS_ON		1
   1622 #define SB_TLS_CRITICAL		2
   1623 
   1624 enum slaptool {
   1625 	SLAPADD=1,	/* LDIF -> database tool */
   1626 	SLAPCAT,	/* database -> LDIF tool */
   1627 	SLAPDN,		/* DN check w/ syntax tool */
   1628 	SLAPINDEX,	/* database index tool */
   1629 	SLAPMODIFY,	/* database modify tool */
   1630 	SLAPPASSWD,	/* password generation tool */
   1631 	SLAPSCHEMA,	/* schema checking tool */
   1632 	SLAPTEST,	/* slapd.conf test tool */
   1633 	SLAPAUTH,	/* test authz-regexp and authc/authz stuff */
   1634 	SLAPACL,	/* test acl */
   1635 	SLAPLAST
   1636 };
   1637 
   1638 LDAP_SLAPD_V(enum slaptool) slapTool;
   1639 
   1640 typedef struct slap_keepalive {
   1641 	int sk_idle;
   1642 	int sk_probes;
   1643 	int sk_interval;
   1644 } slap_keepalive;
   1645 
   1646 typedef struct slap_bindconf {
   1647 	struct berval sb_uri;
   1648 	int sb_version;
   1649 	int sb_tls;
   1650 	int sb_method;
   1651 	int sb_timeout_api;
   1652 	int sb_timeout_net;
   1653 	struct berval sb_binddn;
   1654 	struct berval sb_cred;
   1655 	struct berval sb_saslmech;
   1656 	char *sb_secprops;
   1657 	struct berval sb_realm;
   1658 	struct berval sb_authcId;
   1659 	struct berval sb_authzId;
   1660 	slap_keepalive sb_keepalive;
   1661 	unsigned int sb_tcp_user_timeout;
   1662 #ifdef HAVE_TLS
   1663 	void *sb_tls_ctx;
   1664 	char *sb_tls_cert;
   1665 	char *sb_tls_key;
   1666 	char *sb_tls_cacert;
   1667 	char *sb_tls_cacertdir;
   1668 	char *sb_tls_reqcert;
   1669 	char *sb_tls_reqsan;
   1670 	char *sb_tls_cipher_suite;
   1671 	char *sb_tls_protocol_min;
   1672 	char *sb_tls_ecname;
   1673 #ifdef HAVE_OPENSSL
   1674 	char *sb_tls_crlcheck;
   1675 #endif
   1676 	int sb_tls_int_reqcert;
   1677 	int sb_tls_int_reqsan;
   1678 	int sb_tls_do_init;
   1679 #endif
   1680 } slap_bindconf;
   1681 
   1682 typedef struct slap_verbmasks {
   1683 	struct berval word;
   1684 	const slap_mask_t mask;
   1685 } slap_verbmasks;
   1686 
   1687 typedef struct slap_cf_aux_table {
   1688 	struct berval key;
   1689 	int off;
   1690 	char type;
   1691 	char quote;
   1692 	void *aux;
   1693 } slap_cf_aux_table;
   1694 
   1695 typedef int
   1696 slap_cf_aux_table_parse_x LDAP_P((
   1697 	struct berval *val,
   1698 	void *bc,
   1699 	slap_cf_aux_table *tab0,
   1700 	const char *tabmsg,
   1701 	int unparse ));
   1702 
   1703 #define SLAP_LIMIT_TIME	1
   1704 #define SLAP_LIMIT_SIZE	2
   1705 
   1706 struct slap_limits_set {
   1707 	/* time limits */
   1708 	int	lms_t_soft;
   1709 	int	lms_t_hard;
   1710 
   1711 	/* size limits */
   1712 	int	lms_s_soft;
   1713 	int	lms_s_hard;
   1714 	int	lms_s_unchecked;
   1715 	int	lms_s_pr;
   1716 	int	lms_s_pr_hide;
   1717 	int	lms_s_pr_total;
   1718 };
   1719 
   1720 /* Note: this is different from LDAP_NO_LIMIT (0); slapd internal use only */
   1721 #define SLAP_NO_LIMIT			-1
   1722 #define SLAP_MAX_LIMIT			2147483647
   1723 
   1724 struct slap_limits {
   1725 	unsigned		lm_flags;	/* type of pattern */
   1726 	/* Values must match lmpats[] in limits.c */
   1727 #define SLAP_LIMITS_UNDEFINED		0x0000U
   1728 #define SLAP_LIMITS_EXACT		0x0001U
   1729 #define SLAP_LIMITS_BASE		SLAP_LIMITS_EXACT
   1730 #define SLAP_LIMITS_ONE			0x0002U
   1731 #define SLAP_LIMITS_SUBTREE		0x0003U
   1732 #define SLAP_LIMITS_CHILDREN		0x0004U
   1733 #define SLAP_LIMITS_REGEX		0x0005U
   1734 #define SLAP_LIMITS_ANONYMOUS		0x0006U
   1735 #define SLAP_LIMITS_USERS		0x0007U
   1736 #define SLAP_LIMITS_ANY			0x0008U
   1737 #define SLAP_LIMITS_MASK		0x000FU
   1738 
   1739 #define SLAP_LIMITS_TYPE_SELF		0x0000U
   1740 #define SLAP_LIMITS_TYPE_DN		SLAP_LIMITS_TYPE_SELF
   1741 #define SLAP_LIMITS_TYPE_GROUP		0x0010U
   1742 #define SLAP_LIMITS_TYPE_THIS		0x0020U
   1743 #define SLAP_LIMITS_TYPE_MASK		0x00F0U
   1744 
   1745 	regex_t			lm_regex;	/* regex data for REGEX */
   1746 
   1747 	/*
   1748 	 * normalized DN for EXACT, BASE, ONE, SUBTREE, CHILDREN;
   1749 	 * pattern for REGEX; NULL for ANONYMOUS, USERS
   1750 	 */
   1751 	struct berval		lm_pat;
   1752 
   1753 	/* if lm_flags & SLAP_LIMITS_TYPE_MASK == SLAP_LIMITS_GROUP,
   1754 	 * lm_group_oc is objectClass and lm_group_at is attributeType
   1755 	 * of member in oc for match; then lm_flags & SLAP_LIMITS_MASK
   1756 	 * can only be SLAP_LIMITS_EXACT */
   1757 	ObjectClass		*lm_group_oc;
   1758 	AttributeDescription	*lm_group_ad;
   1759 
   1760 	struct slap_limits_set	lm_limits;
   1761 };
   1762 
   1763 /* temporary aliases */
   1764 typedef BackendDB Backend;
   1765 #define nbackends nBackendDB
   1766 #define backends backendDB
   1767 
   1768 /*
   1769  * syncinfo structure for syncrepl
   1770  */
   1771 
   1772 struct syncinfo_s;
   1773 
   1774 #define SLAP_SYNC_RID_MAX	999
   1775 #define SLAP_SYNC_SID_MAX	4095	/* based on liblutil/csn.c field width */
   1776 
   1777 /* fake conn connid constructed as rid; real connids start
   1778  * at SLAPD_SYNC_CONN_OFFSET */
   1779 #define SLAPD_SYNC_SYNCCONN_OFFSET (SLAP_SYNC_RID_MAX + 1)
   1780 #define SLAPD_SYNC_IS_SYNCCONN(connid) ((connid) < SLAPD_SYNC_SYNCCONN_OFFSET)
   1781 #define SLAPD_SYNC_RID2SYNCCONN(rid) (rid)
   1782 
   1783 #define SLAP_SYNCUUID_SET_SIZE 256
   1784 
   1785 struct sync_cookie {
   1786 	BerVarray ctxcsn;
   1787 	int *sids;
   1788 	int numcsns;
   1789 	int rid;
   1790 	struct berval octet_str;
   1791 	struct berval delcsn;
   1792 	int sid;
   1793 	LDAP_STAILQ_ENTRY(sync_cookie) sc_next;
   1794 };
   1795 
   1796 LDAP_STAILQ_HEAD( slap_sync_cookie_s, sync_cookie );
   1797 
   1798 /* Defs for pending_csn_list */
   1799 LDAP_TAILQ_HEAD( be_pclh, slap_csn_entry );
   1800 
   1801 typedef struct be_pcsn {
   1802 	struct be_pclh			be_pcsn_list;
   1803 	ldap_pvt_thread_mutex_t	be_pcsn_mutex;
   1804 } be_pcsn;
   1805 
   1806 #ifndef SLAP_MAX_CIDS
   1807 #define	SLAP_MAX_CIDS	32	/* Maximum number of supported controls */
   1808 #endif
   1809 
   1810 struct ConfigOCs;	/* slap-config.h */
   1811 
   1812 struct BackendDB {
   1813 	BackendInfo	*bd_info;	/* pointer to shared backend info */
   1814 	BackendDB	*bd_self;	/* pointer to this struct */
   1815 
   1816 	/* fields in this structure (and routines acting on this structure)
   1817 	   should be renamed from be_ to bd_ */
   1818 
   1819 	/* BackendInfo accessors */
   1820 #define		be_config	bd_info->bi_db_config
   1821 #define		be_type		bd_info->bi_type
   1822 
   1823 #define		be_bind		bd_info->bi_op_bind
   1824 #define		be_unbind	bd_info->bi_op_unbind
   1825 #define		be_add		bd_info->bi_op_add
   1826 #define		be_compare	bd_info->bi_op_compare
   1827 #define		be_delete	bd_info->bi_op_delete
   1828 #define		be_modify	bd_info->bi_op_modify
   1829 #define		be_modrdn	bd_info->bi_op_modrdn
   1830 #define		be_search	bd_info->bi_op_search
   1831 #define		be_abandon	bd_info->bi_op_abandon
   1832 
   1833 #define		be_extended	bd_info->bi_extended
   1834 #define		be_cancel	bd_info->bi_op_cancel
   1835 
   1836 #define		be_chk_referrals	bd_info->bi_chk_referrals
   1837 #define		be_chk_controls		bd_info->bi_chk_controls
   1838 #define		be_fetch	bd_info->bi_entry_get_rw
   1839 #define		be_release	bd_info->bi_entry_release_rw
   1840 #define		be_group	bd_info->bi_acl_group
   1841 #define		be_attribute	bd_info->bi_acl_attribute
   1842 #define		be_operational	bd_info->bi_operational
   1843 
   1844 /*
   1845  * define to honor hasSubordinates operational attribute in search filters
   1846  */
   1847 #define		be_has_subordinates bd_info->bi_has_subordinates
   1848 
   1849 #define		be_connection_init	bd_info->bi_connection_init
   1850 #define		be_connection_destroy	bd_info->bi_connection_destroy
   1851 
   1852 #ifdef SLAPD_TOOLS
   1853 #define		be_entry_open bd_info->bi_tool_entry_open
   1854 #define		be_entry_close bd_info->bi_tool_entry_close
   1855 #define		be_entry_first bd_info->bi_tool_entry_first
   1856 #define		be_entry_first_x bd_info->bi_tool_entry_first_x
   1857 #define		be_entry_next bd_info->bi_tool_entry_next
   1858 #define		be_entry_reindex bd_info->bi_tool_entry_reindex
   1859 #define		be_entry_get bd_info->bi_tool_entry_get
   1860 #define		be_entry_put bd_info->bi_tool_entry_put
   1861 #define		be_sync bd_info->bi_tool_sync
   1862 #define		be_dn2id_get bd_info->bi_tool_dn2id_get
   1863 #define		be_entry_modify	bd_info->bi_tool_entry_modify
   1864 #define		be_entry_delete	bd_info->bi_tool_entry_delete
   1865 #endif
   1866 
   1867 	/* supported controls */
   1868 	/* note: set to 0 if the database does not support the control;
   1869 	 * be_ctrls[SLAP_MAX_CIDS] is set to 1 if initialized */
   1870 	char		be_ctrls[SLAP_MAX_CIDS + 1];
   1871 
   1872 /* Database flags */
   1873 #define SLAP_DBFLAG_NOLASTMOD		0x0001U
   1874 #define SLAP_DBFLAG_NO_SCHEMA_CHECK	0x0002U
   1875 #define	SLAP_DBFLAG_HIDDEN		0x0004U
   1876 #define	SLAP_DBFLAG_ONE_SUFFIX		0x0008U
   1877 #define	SLAP_DBFLAG_GLUE_INSTANCE	0x0010U	/* a glue backend */
   1878 #define	SLAP_DBFLAG_GLUE_SUBORDINATE	0x0020U	/* child of a glue hierarchy */
   1879 #define	SLAP_DBFLAG_GLUE_LINKED		0x0040U	/* child is connected to parent */
   1880 #define SLAP_DBFLAG_GLUE_ADVERTISE	0x0080U /* advertise in rootDSE */
   1881 #define SLAP_DBFLAG_OVERLAY		0x0100U	/* this db struct is an overlay */
   1882 #define	SLAP_DBFLAG_GLOBAL_OVERLAY	0x0200U	/* this db struct is a global overlay */
   1883 #define SLAP_DBFLAG_DYNAMIC		0x0400U /* this db allows dynamicObjects */
   1884 #define	SLAP_DBFLAG_MONITORING		0x0800U	/* custom monitoring enabled */
   1885 #define SLAP_DBFLAG_SHADOW		0x8000U /* a shadow */
   1886 #define SLAP_DBFLAG_SINGLE_SHADOW	0x4000U	/* a single-provider shadow */
   1887 #define SLAP_DBFLAG_SYNC_SHADOW		0x1000U /* a sync shadow */
   1888 #define SLAP_DBFLAG_SLURP_SHADOW	0x2000U /* a slurp shadow */
   1889 #define SLAP_DBFLAG_SHADOW_MASK		(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SINGLE_SHADOW|SLAP_DBFLAG_SYNC_SHADOW|SLAP_DBFLAG_SLURP_SHADOW)
   1890 #define SLAP_DBFLAG_CLEAN		0x10000U /* was cleanly shutdown */
   1891 #define SLAP_DBFLAG_ACL_ADD		0x20000U /* check attr ACLs on adds */
   1892 #define SLAP_DBFLAG_SYNC_SUBENTRY	0x40000U /* use subentry for context */
   1893 #define SLAP_DBFLAG_MULTI_SHADOW	0x80000U /* uses multi-provider */
   1894 #define SLAP_DBFLAG_DISABLED	0x100000U
   1895 #define SLAP_DBFLAG_LASTBIND	0x200000U
   1896 #define SLAP_DBFLAG_OPEN	0x400000U	/* db is currently open */
   1897 	slap_mask_t	be_flags;
   1898 #define SLAP_DBFLAGS(be)			((be)->be_flags)
   1899 #define SLAP_NOLASTMOD(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_NOLASTMOD)
   1900 #define SLAP_LASTMOD(be)			(!SLAP_NOLASTMOD(be))
   1901 #define SLAP_LASTBIND(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_LASTBIND)
   1902 #define SLAP_DBHIDDEN(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_HIDDEN)
   1903 #define SLAP_DBDISABLED(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_DISABLED)
   1904 #define SLAP_DB_ONE_SUFFIX(be)		(SLAP_DBFLAGS(be) & SLAP_DBFLAG_ONE_SUFFIX)
   1905 #define SLAP_ISOVERLAY(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_OVERLAY)
   1906 #define SLAP_ISGLOBALOVERLAY(be)		(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLOBAL_OVERLAY)
   1907 #define SLAP_DBMONITORING(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_MONITORING)
   1908 #define SLAP_NO_SCHEMA_CHECK(be)	\
   1909 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_NO_SCHEMA_CHECK)
   1910 #define	SLAP_GLUE_INSTANCE(be)		\
   1911 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_INSTANCE)
   1912 #define	SLAP_GLUE_SUBORDINATE(be)	\
   1913 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_SUBORDINATE)
   1914 #define	SLAP_GLUE_LINKED(be)		\
   1915 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_LINKED)
   1916 #define	SLAP_GLUE_ADVERTISE(be)	\
   1917 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_ADVERTISE)
   1918 #define SLAP_SHADOW(be)				(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SHADOW)
   1919 #define SLAP_SYNC_SHADOW(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SYNC_SHADOW)
   1920 #define SLAP_SLURP_SHADOW(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SLURP_SHADOW)
   1921 #define SLAP_SINGLE_SHADOW(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SINGLE_SHADOW)
   1922 #define SLAP_MULTIPROVIDER(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_MULTI_SHADOW)
   1923 #define SLAP_DBCLEAN(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_CLEAN)
   1924 #define SLAP_DBOPEN(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_OPEN)
   1925 #define SLAP_DBACL_ADD(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_ACL_ADD)
   1926 #define SLAP_SYNC_SUBENTRY(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SYNC_SUBENTRY)
   1927 
   1928 	slap_mask_t	be_restrictops;		/* restriction operations */
   1929 #define SLAP_RESTRICT_OP_ADD		0x0001U
   1930 #define	SLAP_RESTRICT_OP_BIND		0x0002U
   1931 #define SLAP_RESTRICT_OP_COMPARE	0x0004U
   1932 #define SLAP_RESTRICT_OP_DELETE		0x0008U
   1933 #define	SLAP_RESTRICT_OP_EXTENDED	0x0010U
   1934 #define SLAP_RESTRICT_OP_MODIFY		0x0020U
   1935 #define SLAP_RESTRICT_OP_RENAME		0x0040U
   1936 #define SLAP_RESTRICT_OP_SEARCH		0x0080U
   1937 #define SLAP_RESTRICT_OP_MASK		0x00FFU
   1938 
   1939 #define	SLAP_RESTRICT_READONLY		0x80000000U
   1940 
   1941 #define SLAP_RESTRICT_EXOP_START_TLS		0x0100U
   1942 #define	SLAP_RESTRICT_EXOP_MODIFY_PASSWD	0x0200U
   1943 #define SLAP_RESTRICT_EXOP_WHOAMI		0x0400U
   1944 #define SLAP_RESTRICT_EXOP_CANCEL		0x0800U
   1945 #define SLAP_RESTRICT_EXOP_MASK			0xFF00U
   1946 
   1947 #define SLAP_RESTRICT_OP_READS	\
   1948 	( SLAP_RESTRICT_OP_COMPARE	\
   1949 	| SLAP_RESTRICT_OP_SEARCH )
   1950 #define SLAP_RESTRICT_OP_WRITES	\
   1951 	( SLAP_RESTRICT_OP_ADD    \
   1952 	| SLAP_RESTRICT_OP_DELETE \
   1953 	| SLAP_RESTRICT_OP_MODIFY \
   1954 	| SLAP_RESTRICT_OP_RENAME )
   1955 #define SLAP_RESTRICT_OP_ALL \
   1956 	( SLAP_RESTRICT_OP_READS \
   1957 	| SLAP_RESTRICT_OP_WRITES \
   1958 	| SLAP_RESTRICT_OP_BIND \
   1959 	| SLAP_RESTRICT_OP_EXTENDED )
   1960 
   1961 #define SLAP_ALLOW_BIND_V2		0x0001U	/* LDAPv2 bind */
   1962 #define SLAP_ALLOW_BIND_ANON_CRED	0x0002U /* cred should be empty */
   1963 #define SLAP_ALLOW_BIND_ANON_DN		0x0004U /* dn should be empty */
   1964 
   1965 #define SLAP_ALLOW_UPDATE_ANON		0x0008U /* allow anonymous updates */
   1966 #define SLAP_ALLOW_PROXY_AUTHZ_ANON	0x0010U /* allow anonymous proxyAuthz */
   1967 
   1968 #define SLAP_DISALLOW_BIND_ANON		0x0001U /* no anonymous */
   1969 #define SLAP_DISALLOW_BIND_SIMPLE	0x0002U	/* simple authentication */
   1970 
   1971 #define SLAP_DISALLOW_TLS_2_ANON	0x0010U /* StartTLS -> Anonymous */
   1972 #define SLAP_DISALLOW_TLS_AUTHC		0x0020U	/* TLS while authenticated */
   1973 
   1974 #define SLAP_DISALLOW_PROXY_AUTHZ_N_CRIT	0x0100U
   1975 #define SLAP_DISALLOW_DONTUSECOPY_N_CRIT	0x0200U
   1976 
   1977 #define SLAP_DISALLOW_AUX_WO_CR		0x4000U
   1978 
   1979 	slap_mask_t	be_requires;	/* pre-operation requirements */
   1980 #define SLAP_REQUIRE_BIND		0x0001U	/* bind before op */
   1981 #define SLAP_REQUIRE_LDAP_V3	0x0002U	/* LDAPv3 before op */
   1982 #define SLAP_REQUIRE_AUTHC		0x0004U	/* authentication before op */
   1983 #define SLAP_REQUIRE_SASL		0x0008U	/* SASL before op  */
   1984 #define SLAP_REQUIRE_STRONG		0x0010U	/* strong authentication before op */
   1985 
   1986 	/* Required Security Strength Factor */
   1987 	slap_ssf_set_t be_ssf_set;
   1988 
   1989 	BerVarray	be_suffix;	/* the DN suffixes of data in this backend */
   1990 	BerVarray	be_nsuffix;	/* the normalized DN suffixes in this backend */
   1991 	struct berval be_schemadn;	/* per-backend subschema subentry DN */
   1992 	struct berval be_schemandn;	/* normalized subschema DN */
   1993 	struct berval be_rootdn;	/* the magic "root" name (DN) for this db */
   1994 	struct berval be_rootndn;	/* the magic "root" normalized name (DN) for this db */
   1995 	struct berval be_rootpw;	/* the magic "root" password for this db	*/
   1996 	unsigned int be_max_deref_depth; /* limit for depth of an alias deref  */
   1997 #define be_sizelimit	be_def_limit.lms_s_soft
   1998 #define be_timelimit	be_def_limit.lms_t_soft
   1999 	struct slap_limits_set be_def_limit; /* default limits */
   2000 	struct slap_limits **be_limits; /* regex-based size and time limits */
   2001 	AccessControl *be_acl;	/* access control list for this backend	   */
   2002 	slap_access_t	be_dfltaccess;	/* access given if no acl matches	   */
   2003 	AttributeName	*be_extra_anlist;	/* attributes that need to be added to search requests (ITS#6513) */
   2004 
   2005 	unsigned int be_lastbind_precision;
   2006 
   2007 	/* Consumer Information */
   2008 	struct berval be_update_ndn;	/* allowed to make changes (in replicas) */
   2009 	BerVarray	be_update_refs;	/* where to refer modifying clients to */
   2010 	be_pcsn	be_pcsn_st;			/* be_pending_csn_list now inside this */
   2011 	be_pcsn	*be_pcsn_p;
   2012 	struct syncinfo_s						*be_syncinfo; /* For syncrepl */
   2013 
   2014 	void    *be_pb;         /* Netscape plugin */
   2015 	struct ConfigOCs *be_cf_ocs;
   2016 
   2017 	void	*be_private;	/* anything the backend database needs 	   */
   2018 	LDAP_STAILQ_ENTRY(BackendDB) be_next;
   2019 };
   2020 
   2021 /* Backend function typedefs */
   2022 typedef int (BI_bi_func) LDAP_P((BackendInfo *bi));
   2023 typedef BI_bi_func BI_init;
   2024 typedef BI_bi_func BI_open;
   2025 typedef BI_bi_func BI_pause;
   2026 typedef BI_bi_func BI_unpause;
   2027 typedef BI_bi_func BI_close;
   2028 typedef BI_bi_func BI_destroy;
   2029 typedef int (BI_config) LDAP_P((BackendInfo *bi,
   2030 	const char *fname, int lineno,
   2031 	int argc, char **argv));
   2032 
   2033 typedef int (BI_db_func) LDAP_P((Backend *bd, ConfigReply *cr));
   2034 typedef BI_db_func BI_db_init;
   2035 typedef BI_db_func BI_db_open;
   2036 typedef BI_db_func BI_db_close;
   2037 typedef BI_db_func BI_db_destroy;
   2038 typedef int (BI_db_config) LDAP_P((Backend *bd,
   2039 	const char *fname, int lineno,
   2040 	int argc, char **argv));
   2041 
   2042 typedef struct req_bind_s {
   2043 	int rb_method;
   2044 	struct berval rb_cred;
   2045 	struct berval rb_edn;
   2046 	slap_ssf_t rb_ssf;
   2047 	struct berval rb_mech;
   2048 } req_bind_s;
   2049 
   2050 typedef struct req_search_s {
   2051 	int rs_scope;
   2052 	int rs_deref;
   2053 	int rs_slimit;
   2054 	int rs_tlimit;
   2055 	/* NULL means be_isroot evaluated to TRUE */
   2056 	struct slap_limits_set *rs_limit;
   2057 	int rs_attrsonly;
   2058 	AttributeName *rs_attrs;
   2059 	Filter *rs_filter;
   2060 	struct berval rs_filterstr;
   2061 } req_search_s;
   2062 
   2063 typedef struct req_compare_s {
   2064 	AttributeAssertion *rs_ava;
   2065 } req_compare_s;
   2066 
   2067 typedef struct req_modifications_s {
   2068 	Modifications *rs_modlist;
   2069 	char rs_no_opattrs;		/* don't att modify operational attrs */
   2070 } req_modifications_s;
   2071 
   2072 typedef struct req_modify_s {
   2073 	req_modifications_s rs_mods;	/* NOTE: must be first in req_modify_s & req_modrdn_s */
   2074 	int rs_increment;
   2075 } req_modify_s;
   2076 
   2077 typedef struct req_modrdn_s {
   2078 	req_modifications_s rs_mods;	/* NOTE: must be first in req_modify_s & req_modrdn_s */
   2079 	int rs_deleteoldrdn;
   2080 	struct berval rs_newrdn;
   2081 	struct berval rs_nnewrdn;
   2082 	struct berval *rs_newSup;
   2083 	struct berval *rs_nnewSup;
   2084 	struct berval rs_newDN;
   2085 	struct berval rs_nnewDN;
   2086 } req_modrdn_s;
   2087 
   2088 typedef struct req_add_s {
   2089 	Modifications *rs_modlist;
   2090 	Entry *rs_e;
   2091 } req_add_s;
   2092 
   2093 typedef struct req_abandon_s {
   2094 	ber_int_t rs_msgid;
   2095 } req_abandon_s;
   2096 
   2097 #ifdef SLAP_SCHEMA_EXPOSE
   2098 #define SLAP_EXOP_HIDE 0x0000
   2099 #else
   2100 #define SLAP_EXOP_HIDE 0x8000
   2101 #endif
   2102 #define SLAP_EXOP_WRITES 0x0001		/* Exop does writes */
   2103 
   2104 typedef struct req_extended_s {
   2105 	struct berval rs_reqoid;
   2106 	int rs_flags;
   2107 	struct berval *rs_reqdata;
   2108 } req_extended_s;
   2109 
   2110 typedef struct req_pwdexop_s {
   2111 	struct req_extended_s rs_extended;
   2112 	struct berval rs_old;
   2113 	struct berval rs_new;
   2114 	Modifications *rs_mods;
   2115 	Modifications **rs_modtail;
   2116 } req_pwdexop_s;
   2117 
   2118 typedef enum slap_reply_e {
   2119 	REP_RESULT,
   2120 	REP_SASL,
   2121 	REP_EXTENDED,
   2122 	REP_SEARCH,
   2123 	REP_SEARCHREF,
   2124 	REP_INTERMEDIATE,
   2125 	REP_GLUE_RESULT
   2126 } slap_reply_t;
   2127 
   2128 typedef struct rep_sasl_s {
   2129 	struct berval *r_sasldata;
   2130 } rep_sasl_s;
   2131 
   2132 typedef struct rep_extended_s {
   2133 	const char *r_rspoid;
   2134 	struct berval *r_rspdata;
   2135 } rep_extended_s;
   2136 
   2137 typedef struct rep_search_s {
   2138 	Entry *r_entry;
   2139 	slap_mask_t r_attr_flags;
   2140 #define SLAP_ATTRS_UNDEFINED	(0x00U)
   2141 #define SLAP_OPATTRS_NO			(0x01U)
   2142 #define SLAP_OPATTRS_YES		(0x02U)
   2143 #define SLAP_USERATTRS_NO		(0x10U)
   2144 #define SLAP_USERATTRS_YES		(0x20U)
   2145 #define SLAP_OPATTRS_MASK(f)	((f) & (SLAP_OPATTRS_NO|SLAP_OPATTRS_YES))
   2146 #define SLAP_OPATTRS(f)			(((f) & SLAP_OPATTRS_YES) == SLAP_OPATTRS_YES)
   2147 #define SLAP_USERATTRS_MASK(f)	((f) & (SLAP_USERATTRS_NO|SLAP_USERATTRS_YES))
   2148 #define SLAP_USERATTRS(f)		\
   2149 	(((f) & SLAP_USERATTRS_YES) == SLAP_USERATTRS_YES)
   2150 
   2151 	Attribute *r_operational_attrs;
   2152 	AttributeName *r_attrs;
   2153 	int r_nentries;
   2154 	BerVarray r_v2ref;
   2155 } rep_search_s;
   2156 
   2157 struct SlapReply {
   2158 	slap_reply_t sr_type;
   2159 	ber_tag_t sr_tag;
   2160 	ber_int_t sr_msgid;
   2161 	ber_int_t sr_err;
   2162 	const char *sr_matched;
   2163 	const char *sr_text;
   2164 	BerVarray sr_ref;
   2165 	LDAPControl **sr_ctrls;
   2166 	union sr_u {
   2167 		rep_search_s sru_search;
   2168 		rep_sasl_s sru_sasl;
   2169 		rep_extended_s sru_extended;
   2170 	} sr_un;
   2171 	slap_mask_t sr_flags;
   2172 #define	REP_ENTRY_MODIFIABLE	((slap_mask_t) 0x0001U)
   2173 #define	REP_ENTRY_MUSTBEFREED	((slap_mask_t) 0x0002U)
   2174 #define	REP_ENTRY_MUSTRELEASE	((slap_mask_t) 0x0004U)
   2175 #define	REP_ENTRY_MASK		(REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTFLUSH)
   2176 #define	REP_ENTRY_MUSTFLUSH	(REP_ENTRY_MUSTBEFREED|REP_ENTRY_MUSTRELEASE)
   2177 
   2178 #define	REP_MATCHED_MUSTBEFREED	((slap_mask_t) 0x0010U)
   2179 #define	REP_MATCHED_MASK	(REP_MATCHED_MUSTBEFREED)
   2180 
   2181 #define REP_REF_MUSTBEFREED	((slap_mask_t) 0x0020U)
   2182 #define REP_REF_MASK		(REP_REF_MUSTBEFREED)
   2183 
   2184 #define REP_CTRLS_MUSTBEFREED	((slap_mask_t) 0x0040U)
   2185 #define REP_CTRLS_MASK		(REP_CTRLS_MUSTBEFREED)
   2186 
   2187 #define	REP_NO_ENTRYDN		((slap_mask_t) 0x1000U)
   2188 #define	REP_NO_SUBSCHEMA	((slap_mask_t) 0x2000U)
   2189 #define	REP_NO_OPERATIONALS	(REP_NO_ENTRYDN|REP_NO_SUBSCHEMA)
   2190 };
   2191 
   2192 /* short hands for response members */
   2193 #define	sr_attrs sr_un.sru_search.r_attrs
   2194 #define	sr_entry sr_un.sru_search.r_entry
   2195 #define	sr_operational_attrs sr_un.sru_search.r_operational_attrs
   2196 #define sr_attr_flags sr_un.sru_search.r_attr_flags
   2197 #define	sr_v2ref sr_un.sru_search.r_v2ref
   2198 #define	sr_nentries sr_un.sru_search.r_nentries
   2199 #define	sr_rspoid sr_un.sru_extended.r_rspoid
   2200 #define	sr_rspdata sr_un.sru_extended.r_rspdata
   2201 #define	sr_sasldata sr_un.sru_sasl.r_sasldata
   2202 
   2203 typedef int (BI_op_func) LDAP_P(( Operation *op, SlapReply *rs ));
   2204 typedef BI_op_func BI_op_bind;
   2205 typedef BI_op_func BI_op_unbind;
   2206 typedef BI_op_func BI_op_search;
   2207 typedef BI_op_func BI_op_compare;
   2208 typedef BI_op_func BI_op_modify;
   2209 typedef BI_op_func BI_op_modrdn;
   2210 typedef BI_op_func BI_op_add;
   2211 typedef BI_op_func BI_op_delete;
   2212 typedef BI_op_func BI_op_abandon;
   2213 typedef BI_op_func BI_op_extended;
   2214 typedef BI_op_func BI_op_cancel;
   2215 typedef BI_op_func BI_chk_referrals;
   2216 typedef BI_op_func BI_chk_controls;
   2217 typedef int (BI_entry_release_rw)
   2218 	LDAP_P(( Operation *op, Entry *e, int rw ));
   2219 typedef int (BI_entry_get_rw) LDAP_P(( Operation *op, struct berval *ndn,
   2220 	ObjectClass *oc, AttributeDescription *at, int rw, Entry **e ));
   2221 typedef int (BI_operational) LDAP_P(( Operation *op, SlapReply *rs ));
   2222 typedef int (BI_has_subordinates) LDAP_P(( Operation *op,
   2223 	Entry *e, int *hasSubs ));
   2224 typedef int (BI_access_allowed) LDAP_P(( Operation *op, Entry *e,
   2225 	AttributeDescription *desc, struct berval *val, slap_access_t access,
   2226 	AccessControlState *state, slap_mask_t *maskp ));
   2227 typedef int (BI_acl_group) LDAP_P(( Operation *op, Entry *target,
   2228 	struct berval *gr_ndn, struct berval *op_ndn,
   2229 	ObjectClass *group_oc, AttributeDescription *group_at ));
   2230 typedef int (BI_acl_attribute) LDAP_P(( Operation *op, Entry *target,
   2231 	struct berval *entry_ndn, AttributeDescription *entry_at,
   2232 	BerVarray *vals, slap_access_t access ));
   2233 struct OpExtra;
   2234 typedef int (BI_op_txn) LDAP_P(( Operation *op, int txnop, struct OpExtra **ptr ));
   2235 #define SLAP_TXN_BEGIN	1
   2236 #define SLAP_TXN_COMMIT	2
   2237 #define SLAP_TXN_ABORT	3
   2238 
   2239 typedef int (BI_conn_func) LDAP_P(( BackendDB *bd, Connection *c ));
   2240 typedef BI_conn_func BI_connection_init;
   2241 typedef BI_conn_func BI_connection_destroy;
   2242 
   2243 typedef int (BI_tool_entry_open) LDAP_P(( BackendDB *be, int mode ));
   2244 typedef int (BI_tool_entry_close) LDAP_P(( BackendDB *be ));
   2245 typedef ID (BI_tool_entry_first) LDAP_P(( BackendDB *be ));
   2246 typedef ID (BI_tool_entry_first_x) LDAP_P(( BackendDB *be, struct berval *base, int scope, Filter *f ));
   2247 typedef ID (BI_tool_entry_next) LDAP_P(( BackendDB *be ));
   2248 typedef Entry* (BI_tool_entry_get) LDAP_P(( BackendDB *be, ID id ));
   2249 typedef ID (BI_tool_entry_put) LDAP_P(( BackendDB *be, Entry *e,
   2250 	struct berval *text ));
   2251 typedef int (BI_tool_entry_reindex) LDAP_P(( BackendDB *be, ID id, AttributeDescription **adv ));
   2252 typedef int (BI_tool_sync) LDAP_P(( BackendDB *be ));
   2253 typedef ID (BI_tool_dn2id_get) LDAP_P(( BackendDB *be, struct berval *dn ));
   2254 typedef ID (BI_tool_entry_modify) LDAP_P(( BackendDB *be, Entry *e,
   2255 	struct berval *text ));
   2256 typedef int (BI_tool_entry_delete) LDAP_P(( BackendDB *be, struct berval *ndn,
   2257 	struct berval *text ));
   2258 
   2259 struct BackendInfo {
   2260 	char	*bi_type; /* type of backend */
   2261 
   2262 	/*
   2263 	 * per backend type routines:
   2264 	 * bi_init: called to allocate a backend_info structure,
   2265 	 *		called once BEFORE configuration file is read.
   2266 	 *		bi_init() initializes this structure hence is
   2267 	 *		called directly from be_initialize()
   2268 	 * bi_config: called per 'backend' specific option
   2269 	 *		all such options must before any 'database' options
   2270 	 *		bi_config() is called only from read_config()
   2271 	 * bi_open: called to open each database, called
   2272 	 *		once AFTER configuration file is read but
   2273 	 *		BEFORE any bi_db_open() calls.
   2274 	 *		bi_open() is called from backend_startup()
   2275 	 * bi_close: called to close each database, called
   2276 	 *		once during shutdown after all bi_db_close calls.
   2277 	 *		bi_close() is called from backend_shutdown()
   2278 	 * bi_destroy: called to destroy each database, called
   2279 	 *		once during shutdown after all bi_db_destroy calls.
   2280 	 *		bi_destroy() is called from backend_destroy()
   2281 	 */
   2282 	BI_init	*bi_init;
   2283 	BI_config	*bi_config;
   2284 	BI_open *bi_open;
   2285 	BI_pause	*bi_pause;
   2286 	BI_unpause	*bi_unpause;
   2287 	BI_close	*bi_close;
   2288 	BI_destroy	*bi_destroy;
   2289 
   2290 	/*
   2291 	 * per database routines:
   2292 	 * bi_db_init: called to initialize each database,
   2293 	 *	called upon reading 'database <type>'
   2294 	 *	called only from backend_db_init()
   2295 	 * bi_db_config: called to configure each database,
   2296 	 *  called per database to handle per database options
   2297 	 *	called only from read_config()
   2298 	 * bi_db_open: called to open each database
   2299 	 *	called once per database immediately AFTER bi_open()
   2300 	 *	calls but before daemon startup.
   2301 	 *  called only by backend_startup()
   2302 	 * bi_db_close: called to close each database
   2303 	 *	called once per database during shutdown but BEFORE
   2304 	 *  any bi_close call.
   2305 	 *  called only by backend_shutdown()
   2306 	 * bi_db_destroy: called to destroy each database
   2307 	 *  called once per database during shutdown AFTER all
   2308 	 *  bi_close calls but before bi_destroy calls.
   2309 	 *  called only by backend_destroy()
   2310 	 */
   2311 	BI_db_init	*bi_db_init;
   2312 	BI_db_config	*bi_db_config;
   2313 	BI_db_open	*bi_db_open;
   2314 	BI_db_close	*bi_db_close;
   2315 	BI_db_destroy	*bi_db_destroy;
   2316 
   2317 	/* LDAP Operations Handling Routines */
   2318 	BI_op_bind	*bi_op_bind;
   2319 	BI_op_unbind	*bi_op_unbind;
   2320 	BI_op_search	*bi_op_search;
   2321 	BI_op_compare	*bi_op_compare;
   2322 	BI_op_modify	*bi_op_modify;
   2323 	BI_op_modrdn	*bi_op_modrdn;
   2324 	BI_op_add	*bi_op_add;
   2325 	BI_op_delete	*bi_op_delete;
   2326 	BI_op_abandon	*bi_op_abandon;
   2327 
   2328 	/* Extended Operations Helper */
   2329 	BI_op_extended	*bi_extended;
   2330 	BI_op_cancel	*bi_op_cancel;
   2331 
   2332 	/* Auxiliary Functions */
   2333 	BI_operational		*bi_operational;
   2334 	BI_chk_referrals	*bi_chk_referrals;
   2335 	BI_chk_controls		*bi_chk_controls;
   2336 	BI_op_txn			*bi_op_txn;
   2337 	BI_entry_get_rw		*bi_entry_get_rw;
   2338 	BI_entry_release_rw	*bi_entry_release_rw;
   2339 
   2340 	BI_has_subordinates	*bi_has_subordinates;
   2341 	BI_access_allowed	*bi_access_allowed;
   2342 	BI_acl_group		*bi_acl_group;
   2343 	BI_acl_attribute	*bi_acl_attribute;
   2344 
   2345 	BI_connection_init	*bi_connection_init;
   2346 	BI_connection_destroy	*bi_connection_destroy;
   2347 
   2348 	/* hooks for slap tools */
   2349 	BI_tool_entry_open	*bi_tool_entry_open;
   2350 	BI_tool_entry_close	*bi_tool_entry_close;
   2351 	BI_tool_entry_first	*bi_tool_entry_first;	/* deprecated */
   2352 	BI_tool_entry_first_x	*bi_tool_entry_first_x;
   2353 	BI_tool_entry_next	*bi_tool_entry_next;
   2354 	BI_tool_entry_get	*bi_tool_entry_get;
   2355 	BI_tool_entry_put	*bi_tool_entry_put;
   2356 	BI_tool_entry_reindex	*bi_tool_entry_reindex;
   2357 	BI_tool_sync		*bi_tool_sync;
   2358 	BI_tool_dn2id_get	*bi_tool_dn2id_get;
   2359 	BI_tool_entry_modify	*bi_tool_entry_modify;
   2360 	BI_tool_entry_delete	*bi_tool_entry_delete;
   2361 
   2362 #define SLAP_INDEX_ADD_OP		0x0001
   2363 #define SLAP_INDEX_DELETE_OP	0x0002
   2364 
   2365 	slap_mask_t	bi_flags; /* backend flags */
   2366 #define SLAP_BFLAG_MONITOR			0x0001U /* a monitor backend */
   2367 #define SLAP_BFLAG_CONFIG			0x0002U /* a config backend */
   2368 #define SLAP_BFLAG_FRONTEND			0x0004U /* the frontendDB */
   2369 #define SLAP_BFLAG_NOLASTMODCMD		0x0010U
   2370 #define SLAP_BFLAG_INCREMENT		0x0100U
   2371 #define SLAP_BFLAG_ALIASES			0x1000U
   2372 #define SLAP_BFLAG_REFERRALS		0x2000U
   2373 #define SLAP_BFLAG_SUBENTRIES		0x4000U
   2374 #define SLAP_BFLAG_DYNAMIC			0x8000U
   2375 #define SLAP_BFLAG_STANDALONE		0x10000U /* started up regardless of whether any databases use it */
   2376 #define SLAP_BFLAG_TXNS				0x20000U /* supports LDAP transactions */
   2377 
   2378 /* overlay specific */
   2379 #define	SLAPO_BFLAG_SINGLE		0x01000000U
   2380 #define	SLAPO_BFLAG_DBONLY		0x02000000U
   2381 #define	SLAPO_BFLAG_GLOBONLY		0x04000000U
   2382 #define	SLAPO_BFLAG_DISABLED		0x08000000U
   2383 #define	SLAPO_BFLAG_MASK		0xFF000000U
   2384 
   2385 #define SLAP_BFLAGS(be)		((be)->bd_info->bi_flags)
   2386 #define SLAP_MONITOR(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_MONITOR)
   2387 #define SLAP_CONFIG(be)		(SLAP_BFLAGS(be) & SLAP_BFLAG_CONFIG)
   2388 #define SLAP_FRONTEND(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_FRONTEND)
   2389 #define SLAP_INCREMENT(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_INCREMENT)
   2390 #define SLAP_ALIASES(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_ALIASES)
   2391 #define SLAP_REFERRALS(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_REFERRALS)
   2392 #define SLAP_SUBENTRIES(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_SUBENTRIES)
   2393 #define SLAP_DYNAMIC(be)	((SLAP_BFLAGS(be) & SLAP_BFLAG_DYNAMIC) || (SLAP_DBFLAGS(be) & SLAP_DBFLAG_DYNAMIC))
   2394 #define SLAP_NOLASTMODCMD(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_NOLASTMODCMD)
   2395 #define SLAP_LASTMODCMD(be)	(!SLAP_NOLASTMODCMD(be))
   2396 #define SLAP_TXNS(be)		(SLAP_BFLAGS(be) & SLAP_BFLAG_TXNS)
   2397 
   2398 /* overlay specific */
   2399 #define SLAPO_SINGLE(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_SINGLE)
   2400 #define SLAPO_DBONLY(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_DBONLY)
   2401 #define SLAPO_GLOBONLY(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_GLOBONLY)
   2402 #define SLAPO_DISABLED(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_DISABLED)
   2403 
   2404 	char	**bi_controls;		/* supported controls */
   2405 	char	bi_ctrls[SLAP_MAX_CIDS + 1];
   2406 
   2407 	unsigned int bi_nDB;	/* number of databases of this type */
   2408 	struct ConfigOCs *bi_cf_ocs;
   2409 	char	**bi_obsolete_names;
   2410 	void	*bi_extra;		/* backend type-specific APIs */
   2411 	void	*bi_private;	/* backend type-specific config data */
   2412 	LDAP_STAILQ_ENTRY(BackendInfo) bi_next ;
   2413 };
   2414 
   2415 #define c_authtype	c_authz.sai_method
   2416 #define c_authmech	c_authz.sai_mech
   2417 #define c_dn		c_authz.sai_dn
   2418 #define c_ndn		c_authz.sai_ndn
   2419 #define c_ssf		c_authz.sai_ssf
   2420 #define c_transport_ssf	c_authz.sai_transport_ssf
   2421 #define c_tls_ssf	c_authz.sai_tls_ssf
   2422 #define c_sasl_ssf	c_authz.sai_sasl_ssf
   2423 
   2424 #define o_authtype	o_authz.sai_method
   2425 #define o_authmech	o_authz.sai_mech
   2426 #define o_dn		o_authz.sai_dn
   2427 #define o_ndn		o_authz.sai_ndn
   2428 #define o_ssf		o_authz.sai_ssf
   2429 #define o_transport_ssf	o_authz.sai_transport_ssf
   2430 #define o_tls_ssf	o_authz.sai_tls_ssf
   2431 #define o_sasl_ssf	o_authz.sai_sasl_ssf
   2432 
   2433 typedef int (slap_response)( Operation *, SlapReply * );
   2434 
   2435 struct slap_callback;
   2436 typedef void (slap_writewait)( Operation *, struct slap_callback * );
   2437 
   2438 typedef struct slap_callback {
   2439 	struct slap_callback *sc_next;
   2440 	slap_response *sc_response;
   2441 	slap_response *sc_cleanup;
   2442 	void *sc_private;
   2443 	slap_writewait *sc_writewait;
   2444 } slap_callback;
   2445 
   2446 struct slap_overinfo;
   2447 
   2448 typedef enum slap_operation_e {
   2449 	op_bind = 0,
   2450 	op_unbind,
   2451 	op_search,
   2452 	op_compare,
   2453 	op_modify,
   2454 	op_modrdn,
   2455 	op_add,
   2456 	op_delete,
   2457 	op_abandon,
   2458 	op_extended,
   2459 	op_cancel,
   2460 	op_aux_operational,
   2461 	op_aux_chk_referrals,
   2462 	op_aux_chk_controls,
   2463 	op_txn,
   2464 	op_last
   2465 } slap_operation_t;
   2466 
   2467 typedef struct slap_overinst {
   2468 	BackendInfo on_bi;
   2469 	slap_response *on_response;
   2470 	struct slap_overinfo *on_info;
   2471 	struct slap_overinst *on_next;
   2472 } slap_overinst;
   2473 
   2474 typedef struct slap_overinfo {
   2475 	BackendInfo oi_bi;
   2476 	BackendInfo *oi_orig;
   2477 	BackendDB	*oi_origdb;
   2478 	struct slap_overinst *oi_list;
   2479 } slap_overinfo;
   2480 
   2481 /* Should successive callbacks in a chain be processed? */
   2482 #define	SLAP_CB_BYPASS		0x08800
   2483 #define	SLAP_CB_CONTINUE	0x08000
   2484 
   2485 /*
   2486  * Paged Results state
   2487  */
   2488 typedef unsigned long PagedResultsCookie;
   2489 typedef struct PagedResultsState {
   2490 	Backend *ps_be;
   2491 	ber_int_t ps_size;
   2492 	int ps_count;
   2493 	PagedResultsCookie ps_cookie;
   2494 	struct berval ps_cookieval;
   2495 } PagedResultsState;
   2496 
   2497 struct slap_csn_entry {
   2498 	Operation *ce_op;
   2499 	struct berval ce_csn;
   2500 	int ce_sid;
   2501 #define SLAP_CSN_PENDING	1
   2502 #define SLAP_CSN_COMMIT		2
   2503 	long ce_state;
   2504 	LDAP_TAILQ_ENTRY (slap_csn_entry) ce_csn_link;
   2505 };
   2506 
   2507 /*
   2508  * Caches the result of a backend_group check for ACL evaluation
   2509  */
   2510 typedef struct GroupAssertion {
   2511 	struct GroupAssertion *ga_next;
   2512 	Backend *ga_be;
   2513 	ObjectClass *ga_oc;
   2514 	AttributeDescription *ga_at;
   2515 	int ga_res;
   2516 	ber_len_t ga_len;
   2517 	char ga_ndn[1];
   2518 } GroupAssertion;
   2519 
   2520 struct slap_control_ids {
   2521 	int sc_LDAPsync;
   2522 	int sc_assert;
   2523 	int sc_domainScope;
   2524 	int sc_dontUseCopy;
   2525 	int sc_manageDSAit;
   2526 	int sc_modifyIncrement;
   2527 	int sc_noOp;
   2528 	int sc_pagedResults;
   2529 	int sc_permissiveModify;
   2530 	int sc_postRead;
   2531 	int sc_preRead;
   2532 	int sc_proxyAuthz;
   2533 	int sc_relax;
   2534 	int sc_searchOptions;
   2535 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
   2536 	int sc_sortedResults;
   2537 #endif
   2538 	int sc_subentries;
   2539 #ifdef SLAP_CONTROL_X_TREE_DELETE
   2540 	int sc_treeDelete;
   2541 #endif
   2542 	int sc_txnSpec;
   2543 #ifdef SLAP_CONTROL_X_SESSION_TRACKING
   2544 	int sc_sessionTracking;
   2545 #endif
   2546 	int sc_valuesReturnFilter;
   2547 #ifdef SLAP_CONTROL_X_WHATFAILED
   2548 	int sc_whatFailed;
   2549 #endif
   2550 #ifdef LDAP_CONTROL_X_LAZY_COMMIT
   2551 	int sc_lazyCommit;
   2552 #endif
   2553 };
   2554 
   2555 /*
   2556  * Operation indices
   2557  */
   2558 typedef enum {
   2559 	SLAP_OP_BIND = 0,
   2560 	SLAP_OP_UNBIND,
   2561 	SLAP_OP_SEARCH,
   2562 	SLAP_OP_COMPARE,
   2563 	SLAP_OP_MODIFY,
   2564 	SLAP_OP_MODRDN,
   2565 	SLAP_OP_ADD,
   2566 	SLAP_OP_DELETE,
   2567 	SLAP_OP_ABANDON,
   2568 	SLAP_OP_EXTENDED,
   2569 	SLAP_OP_LAST
   2570 } slap_op_t;
   2571 
   2572 typedef struct slap_counters_t {
   2573 	struct slap_counters_t	*sc_next;
   2574 	ldap_pvt_thread_mutex_t	sc_mutex;
   2575 	ldap_pvt_mp_t		sc_bytes;
   2576 	ldap_pvt_mp_t		sc_pdu;
   2577 	ldap_pvt_mp_t		sc_entries;
   2578 	ldap_pvt_mp_t		sc_refs;
   2579 
   2580 	ldap_pvt_mp_t		sc_ops_completed;
   2581 	ldap_pvt_mp_t		sc_ops_initiated;
   2582 	ldap_pvt_mp_t		sc_ops_completed_[SLAP_OP_LAST];
   2583 	ldap_pvt_mp_t		sc_ops_initiated_[SLAP_OP_LAST];
   2584 } slap_counters_t;
   2585 
   2586 /*
   2587  * represents an operation pending from an ldap client
   2588  */
   2589 typedef struct Opheader {
   2590 	unsigned long	oh_opid;	/* id of this operation */
   2591 	unsigned long	oh_connid;	/* id of conn initiating this op */
   2592 	Connection	*oh_conn;	/* connection spawning this op */
   2593 
   2594 	ber_int_t	oh_msgid;	/* msgid of the request */
   2595 	ber_int_t	oh_protocol;	/* version of the LDAP protocol used by client */
   2596 
   2597 	ldap_pvt_thread_t	oh_tid;	/* thread handling this op */
   2598 
   2599 	void	*oh_threadctx;		/* thread pool thread context */
   2600 	void	*oh_tmpmemctx;		/* slab malloc context */
   2601 	BerMemoryFunctions *oh_tmpmfuncs;
   2602 
   2603 	slap_counters_t	*oh_counters;
   2604 
   2605 	char		oh_log_prefix[ /* sizeof("conn= op=") + 2*LDAP_PVT_INTTYPE_CHARS(unsigned long) */ SLAP_TEXT_BUFLEN ];
   2606 
   2607 #ifdef LDAP_SLAPI
   2608 	void	*oh_extensions;		/* NS-SLAPI plugin */
   2609 #endif
   2610 } Opheader;
   2611 
   2612 typedef union OpRequest {
   2613 	req_add_s oq_add;
   2614 	req_bind_s oq_bind;
   2615 	req_compare_s oq_compare;
   2616 	req_modify_s oq_modify;
   2617 	req_modrdn_s oq_modrdn;
   2618 	req_search_s oq_search;
   2619 	req_abandon_s oq_abandon;
   2620 	req_abandon_s oq_cancel;
   2621 	req_extended_s oq_extended;
   2622 	req_pwdexop_s oq_pwdexop;
   2623 } OpRequest;
   2624 
   2625 /* This is only a header. Actual users should define their own
   2626  * structs with the oe_next / oe_key fields at the top and
   2627  * whatever else they need following.
   2628  */
   2629 typedef struct OpExtra {
   2630 	LDAP_SLIST_ENTRY(OpExtra) oe_next;
   2631 	void *oe_key;
   2632 } OpExtra;
   2633 
   2634 typedef struct OpExtraDB {
   2635 	OpExtra oe;
   2636 	BackendDB *oe_db;
   2637 } OpExtraDB;
   2638 
   2639 struct Operation {
   2640 	Opheader *o_hdr;
   2641 
   2642 #define o_opid o_hdr->oh_opid
   2643 #define o_connid o_hdr->oh_connid
   2644 #define o_conn o_hdr->oh_conn
   2645 #define o_msgid o_hdr->oh_msgid
   2646 #define o_protocol o_hdr->oh_protocol
   2647 #define o_tid o_hdr->oh_tid
   2648 #define o_threadctx o_hdr->oh_threadctx
   2649 #define o_tmpmemctx o_hdr->oh_tmpmemctx
   2650 #define o_tmpmfuncs o_hdr->oh_tmpmfuncs
   2651 #define o_counters o_hdr->oh_counters
   2652 
   2653 #define	o_tmpalloc	o_tmpmfuncs->bmf_malloc
   2654 #define o_tmpcalloc	o_tmpmfuncs->bmf_calloc
   2655 #define	o_tmprealloc	o_tmpmfuncs->bmf_realloc
   2656 #define	o_tmpfree	o_tmpmfuncs->bmf_free
   2657 
   2658 #define o_log_prefix o_hdr->oh_log_prefix
   2659 
   2660 	ber_tag_t	o_tag;		/* tag of the request */
   2661 	time_t		o_time;		/* time op was initiated */
   2662 	int			o_tincr;	/* counter for multiple ops with same o_time */
   2663 	int			o_tusec;	/* microsecond timestamp */
   2664 	struct timeval o_qtime;	/* time spent in queues before execution */
   2665 
   2666 	BackendDB	*o_bd;	/* backend DB processing this op */
   2667 	struct berval	o_req_dn;	/* DN of target of request */
   2668 	struct berval	o_req_ndn;
   2669 
   2670 	OpRequest o_request;
   2671 
   2672 /* short hands for union members */
   2673 #define oq_add o_request.oq_add
   2674 #define oq_bind o_request.oq_bind
   2675 #define oq_compare o_request.oq_compare
   2676 #define oq_modify o_request.oq_modify
   2677 #define oq_modrdn o_request.oq_modrdn
   2678 #define oq_search o_request.oq_search
   2679 #define oq_abandon o_request.oq_abandon
   2680 #define oq_cancel o_request.oq_cancel
   2681 #define oq_extended o_request.oq_extended
   2682 #define oq_pwdexop o_request.oq_pwdexop
   2683 
   2684 /* short hands for inner request members */
   2685 #define orb_method oq_bind.rb_method
   2686 #define orb_cred oq_bind.rb_cred
   2687 #define orb_edn oq_bind.rb_edn
   2688 #define orb_ssf oq_bind.rb_ssf
   2689 #define orb_mech oq_bind.rb_mech
   2690 
   2691 #define ors_scope oq_search.rs_scope
   2692 #define ors_deref oq_search.rs_deref
   2693 #define ors_slimit oq_search.rs_slimit
   2694 #define ors_tlimit oq_search.rs_tlimit
   2695 #define ors_limit oq_search.rs_limit
   2696 #define ors_attrsonly oq_search.rs_attrsonly
   2697 #define ors_attrs oq_search.rs_attrs
   2698 #define ors_filter oq_search.rs_filter
   2699 #define ors_filterstr oq_search.rs_filterstr
   2700 
   2701 #define orr_modlist oq_modrdn.rs_mods.rs_modlist
   2702 #define orr_no_opattrs oq_modrdn.rs_mods.rs_no_opattrs
   2703 #define orr_deleteoldrdn oq_modrdn.rs_deleteoldrdn
   2704 #define orr_newrdn oq_modrdn.rs_newrdn
   2705 #define orr_nnewrdn oq_modrdn.rs_nnewrdn
   2706 #define orr_newSup oq_modrdn.rs_newSup
   2707 #define orr_nnewSup oq_modrdn.rs_nnewSup
   2708 #define orr_newDN oq_modrdn.rs_newDN
   2709 #define orr_nnewDN oq_modrdn.rs_nnewDN
   2710 
   2711 #define orc_ava oq_compare.rs_ava
   2712 
   2713 #define ora_e oq_add.rs_e
   2714 #define ora_modlist oq_add.rs_modlist
   2715 
   2716 #define orn_msgid oq_abandon.rs_msgid
   2717 
   2718 #define orm_modlist oq_modify.rs_mods.rs_modlist
   2719 #define orm_no_opattrs oq_modify.rs_mods.rs_no_opattrs
   2720 #define orm_increment oq_modify.rs_increment
   2721 
   2722 #define ore_reqoid oq_extended.rs_reqoid
   2723 #define ore_flags oq_extended.rs_flags
   2724 #define ore_reqdata oq_extended.rs_reqdata
   2725 	volatile sig_atomic_t o_abandon;	/* abandon flag */
   2726 	volatile sig_atomic_t o_cancel;		/* cancel flag */
   2727 #define SLAP_CANCEL_NONE				0x00
   2728 #define SLAP_CANCEL_REQ					0x01
   2729 #define SLAP_CANCEL_ACK					0x02
   2730 #define SLAP_CANCEL_DONE				0x03
   2731 
   2732 	GroupAssertion *o_groups;
   2733 	char o_do_not_cache;	/* don't cache groups from this op */
   2734 	char o_is_auth_check;	/* authorization in progress */
   2735 	char o_dont_replicate;
   2736 	slap_access_t o_acl_priv;
   2737 
   2738 	char o_nocaching;
   2739 	char o_delete_glue_parent;
   2740 	char o_no_schema_check;
   2741 #define get_no_schema_check(op)			((op)->o_no_schema_check)
   2742 	char o_no_subordinate_glue;
   2743 #define get_no_subordinate_glue(op)		((op)->o_no_subordinate_glue)
   2744 
   2745 #define SLAP_CONTROL_NONE	0
   2746 #define SLAP_CONTROL_IGNORED	1
   2747 #define SLAP_CONTROL_NONCRITICAL 2
   2748 #define SLAP_CONTROL_CRITICAL	3
   2749 #define	SLAP_CONTROL_MASK	3
   2750 
   2751 /* spare bits for simple flags */
   2752 #define SLAP_CONTROL_SHIFT	4	/* shift to reach data bits */
   2753 #define SLAP_CONTROL_DATA0	0x10
   2754 #define SLAP_CONTROL_DATA1	0x20
   2755 #define SLAP_CONTROL_DATA2	0x40
   2756 #define SLAP_CONTROL_DATA3	0x80
   2757 
   2758 #define _SCM(x)	((x) & SLAP_CONTROL_MASK)
   2759 
   2760 	char o_ctrlflag[SLAP_MAX_CIDS];	/* per-control flags */
   2761 	void **o_controls;		/* per-control state */
   2762 
   2763 #define o_dontUseCopy			o_ctrlflag[slap_cids.sc_dontUseCopy]
   2764 #define get_dontUseCopy(op)		_SCM((op)->o_dontUseCopy)
   2765 
   2766 #define o_relax				o_ctrlflag[slap_cids.sc_relax]
   2767 #define get_relax(op)		_SCM((op)->o_relax)
   2768 
   2769 #define o_managedsait	o_ctrlflag[slap_cids.sc_manageDSAit]
   2770 #define get_manageDSAit(op)				_SCM((op)->o_managedsait)
   2771 
   2772 #define o_noop	o_ctrlflag[slap_cids.sc_noOp]
   2773 #define o_proxy_authz	o_ctrlflag[slap_cids.sc_proxyAuthz]
   2774 #define o_subentries	o_ctrlflag[slap_cids.sc_subentries]
   2775 
   2776 #define get_subentries(op)				_SCM((op)->o_subentries)
   2777 #define	o_subentries_visibility	o_ctrlflag[slap_cids.sc_subentries]
   2778 
   2779 #define set_subentries_visibility(op)	((op)->o_subentries |= SLAP_CONTROL_DATA0)
   2780 #define get_subentries_visibility(op)	(((op)->o_subentries & SLAP_CONTROL_DATA0) != 0)
   2781 
   2782 #define o_assert	o_ctrlflag[slap_cids.sc_assert]
   2783 #define get_assert(op)					((int)(op)->o_assert)
   2784 #define o_assertion	o_controls[slap_cids.sc_assert]
   2785 #define get_assertion(op)				((op)->o_assertion)
   2786 
   2787 #define	o_valuesreturnfilter	o_ctrlflag[slap_cids.sc_valuesReturnFilter]
   2788 #define o_vrFilter	o_controls[slap_cids.sc_valuesReturnFilter]
   2789 
   2790 #define o_permissive_modify	o_ctrlflag[slap_cids.sc_permissiveModify]
   2791 #define get_permissiveModify(op)		((int)(op)->o_permissive_modify)
   2792 
   2793 #define o_domain_scope	o_ctrlflag[slap_cids.sc_domainScope]
   2794 #define get_domainScope(op)				((int)(op)->o_domain_scope)
   2795 
   2796 #ifdef SLAP_CONTROL_X_TREE_DELETE
   2797 #define	o_tree_delete	o_ctrlflag[slap_cids.sc_treeDelete]
   2798 #define get_treeDelete(op)				((int)(op)->o_tree_delete)
   2799 #endif
   2800 
   2801 #define o_preread	o_ctrlflag[slap_cids.sc_preRead]
   2802 #define o_postread	o_ctrlflag[slap_cids.sc_postRead]
   2803 
   2804 #define	o_preread_attrs	o_controls[slap_cids.sc_preRead]
   2805 #define o_postread_attrs	o_controls[slap_cids.sc_postRead]
   2806 
   2807 #define o_pagedresults	o_ctrlflag[slap_cids.sc_pagedResults]
   2808 #define o_pagedresults_state	o_controls[slap_cids.sc_pagedResults]
   2809 #define get_pagedresults(op)			((int)(op)->o_pagedresults)
   2810 
   2811 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
   2812 #define o_sortedresults		o_ctrlflag[slap_cids.sc_sortedResults]
   2813 #endif
   2814 
   2815 #define o_txnSpec		o_ctrlflag[slap_cids.sc_txnSpec]
   2816 
   2817 #ifdef SLAP_CONTROL_X_SESSION_TRACKING
   2818 #define o_session_tracking	o_ctrlflag[slap_cids.sc_sessionTracking]
   2819 #define o_tracked_sessions	o_controls[slap_cids.sc_sessionTracking]
   2820 #define get_sessionTracking(op)			((int)(op)->o_session_tracking)
   2821 #endif
   2822 
   2823 #ifdef SLAP_CONTROL_X_WHATFAILED
   2824 #define o_whatFailed o_ctrlflag[slap_cids.sc_whatFailed]
   2825 #define get_whatFailed(op)				_SCM((op)->o_whatFailed)
   2826 #endif
   2827 
   2828 #ifdef SLAP_CONTROL_X_LAZY_COMMIT
   2829 #define o_lazyCommit o_ctrlflag[slap_cids.sc_lazyCommit]
   2830 #define get_lazyCommit(op)				_SCM((op)->o_lazyCommit)
   2831 #endif
   2832 
   2833 #define o_sync			o_ctrlflag[slap_cids.sc_LDAPsync]
   2834 
   2835 	AuthorizationInformation o_authz;
   2836 
   2837 	BerElement	*o_ber;		/* ber of the request */
   2838 	BerElement	*o_res_ber;	/* ber of the CLDAP reply or readback control */
   2839 	slap_callback *o_callback;	/* callback pointers */
   2840 	LDAPControl	**o_ctrls;	 /* controls */
   2841 	struct berval o_csn;
   2842 
   2843 	/* DEPRECATE o_private - use o_extra instead */
   2844 	void	*o_private;	/* anything the backend needs */
   2845 	LDAP_SLIST_HEAD(o_e, OpExtra) o_extra;	/* anything the backend needs */
   2846 
   2847 	LDAP_STAILQ_ENTRY(Operation)	o_next;	/* next operation in list */
   2848 };
   2849 
   2850 typedef struct OperationBuffer {
   2851 	Operation	ob_op;
   2852 	Opheader	ob_hdr;
   2853 	void		*ob_controls[SLAP_MAX_CIDS];
   2854 } OperationBuffer;
   2855 
   2856 #define send_ldap_error( op, rs, err, text ) do { \
   2857 		(rs)->sr_err = err; (rs)->sr_text = text; \
   2858 		((op)->o_conn->c_send_ldap_result)( op, rs ); \
   2859 	} while (0)
   2860 #define send_ldap_discon( op, rs, err, text ) do { \
   2861 		(rs)->sr_err = err; (rs)->sr_text = text; \
   2862 		send_ldap_disconnect( op, rs ); \
   2863 	} while (0)
   2864 
   2865 typedef void (SEND_LDAP_RESULT)(
   2866 	Operation *op, SlapReply *rs);
   2867 typedef int (SEND_SEARCH_ENTRY)(
   2868 	Operation *op, SlapReply *rs);
   2869 typedef int (SEND_SEARCH_REFERENCE)(
   2870 	Operation *op, SlapReply *rs);
   2871 typedef void (SEND_LDAP_EXTENDED)(
   2872 	Operation *op, SlapReply *rs);
   2873 typedef void (SEND_LDAP_INTERMEDIATE)(
   2874 	Operation *op, SlapReply *rs);
   2875 
   2876 #define send_ldap_result( op, rs ) \
   2877 	((op)->o_conn->c_send_ldap_result)( op, rs )
   2878 #define send_search_entry( op, rs ) \
   2879 	((op)->o_conn->c_send_search_entry)( op, rs )
   2880 #define send_search_reference( op, rs ) \
   2881 	((op)->o_conn->c_send_search_reference)( op, rs )
   2882 #define send_ldap_extended( op, rs ) \
   2883 	((op)->o_conn->c_send_ldap_extended)( op, rs )
   2884 #define send_ldap_intermediate( op, rs ) \
   2885 	((op)->o_conn->c_send_ldap_intermediate)( op, rs )
   2886 
   2887 typedef struct Listener Listener;
   2888 
   2889 /*
   2890  * represents a connection from an ldap client
   2891  */
   2892 /* connection state (protected by c_mutex ) */
   2893 enum sc_conn_state {
   2894 	SLAP_C_INVALID = 0,		/* MUST BE ZERO (0) */
   2895 	SLAP_C_INACTIVE,		/* zero threads */
   2896 	SLAP_C_CLOSING,			/* closing */
   2897 	SLAP_C_ACTIVE,			/* one or more threads */
   2898 	SLAP_C_BINDING,			/* binding */
   2899 	SLAP_C_CLIENT			/* outbound client conn */
   2900 };
   2901 struct Connection {
   2902 	enum sc_conn_state	c_conn_state;	/* connection state */
   2903 	int			c_conn_idx;		/* slot in connections array */
   2904 	ber_socket_t	c_sd;
   2905 	const char	*c_close_reason; /* why connection is closing */
   2906 
   2907 	ldap_pvt_thread_mutex_t	c_mutex; /* protect the connection */
   2908 	Sockbuf		*c_sb;			/* ber connection stuff		  */
   2909 
   2910 	/* only can be changed by connect_init */
   2911 	time_t		c_starttime;	/* when the connection was opened */
   2912 	time_t		c_activitytime;	/* when the connection was last used */
   2913 	unsigned long		c_connid;	/* id of this connection for stats*/
   2914 
   2915 	struct berval	c_peer_domain;	/* DNS name of client */
   2916 	struct berval	c_peer_name;	/* peer name (trans=addr:port) */
   2917 	Listener	*c_listener;
   2918 #define c_listener_url c_listener->sl_url	/* listener URL */
   2919 #define c_sock_name c_listener->sl_name	/* sock name (trans=addr:port) */
   2920 
   2921 	/* only can be changed by binding thread */
   2922 	struct berval	c_sasl_bind_mech;			/* mech in progress */
   2923 	struct berval	c_sasl_dn;	/* temporary storage */
   2924 	struct berval	c_sasl_authz_dn;	/* SASL proxy authz */
   2925 
   2926 	/* authorization backend */
   2927 	Backend *c_authz_backend;
   2928 	void	*c_authz_cookie;
   2929 #define SLAP_IS_AUTHZ_BACKEND( op )	\
   2930 	( (op)->o_bd != NULL \
   2931 		&& (op)->o_bd->be_private != NULL \
   2932 		&& (op)->o_conn != NULL \
   2933 		&& (op)->o_conn->c_authz_backend != NULL \
   2934 		&& ( (op)->o_bd->be_private == (op)->o_conn->c_authz_backend->be_private \
   2935 			|| (op)->o_bd->be_private == (op)->o_conn->c_authz_cookie ) )
   2936 
   2937 	AuthorizationInformation c_authz;
   2938 
   2939 	ber_int_t	c_protocol;	/* version of the LDAP protocol used by client */
   2940 
   2941 	LDAP_STAILQ_HEAD(c_o, Operation) c_ops;	/* list of operations being processed */
   2942 	LDAP_STAILQ_HEAD(c_po, Operation) c_pending_ops;	/* list of pending operations */
   2943 
   2944 	ldap_pvt_thread_mutex_t	c_write1_mutex;	/* only one pdu written at a time */
   2945 	ldap_pvt_thread_cond_t	c_write1_cv;	/* only one pdu written at a time */
   2946 
   2947 	BerElement	*c_currentber;	/* ber we're attempting to read */
   2948 	int			c_writers;		/* number of writers waiting */
   2949 	char		c_writing;		/* someone is writing */
   2950 
   2951 	char		c_sasl_bind_in_progress;	/* multi-op bind in progress */
   2952 	char		c_writewaiter;	/* true if blocked on write */
   2953 
   2954 
   2955 #define	CONN_IS_TLS	1
   2956 #define	CONN_IS_UDP	2
   2957 #define	CONN_IS_CLIENT	4
   2958 #define	CONN_IS_IPC	8
   2959 
   2960 #ifdef LDAP_CONNECTIONLESS
   2961 	char	c_is_udp;		/* true if this is (C)LDAP over UDP */
   2962 #endif
   2963 #ifdef HAVE_TLS
   2964 	char	c_is_tls;		/* true if this LDAP over raw TLS */
   2965 	char	c_needs_tls_accept;	/* true if SSL_accept should be called */
   2966 #endif
   2967 	char	c_sasl_layers;	 /* true if we need to install SASL i/o handlers */
   2968 	char	c_sasl_done;		/* SASL completed once */
   2969 	void	*c_sasl_authctx;	/* SASL authentication context */
   2970 	void	*c_sasl_sockctx;	/* SASL security layer context */
   2971 	void	*c_sasl_extra;		/* SASL session extra stuff */
   2972 	void	*c_sasl_cbind;		/* SASL channel binding */
   2973 	Operation	*c_sasl_bindop;	/* set to current op if it's a bind */
   2974 
   2975 #define CONN_TXN_INACTIVE 0
   2976 #define CONN_TXN_SPECIFY 1
   2977 #define CONN_TXN_SETTLE -1
   2978 	int c_txn;
   2979 
   2980 	Backend *c_txn_backend;
   2981 	LDAP_STAILQ_HEAD(c_to, Operation) c_txn_ops; /* list of operations in txn */
   2982 
   2983 	PagedResultsState c_pagedresults_state; /* paged result state */
   2984 
   2985 	long	c_n_ops_received;	/* num of ops received (next op_id) */
   2986 	long	c_n_ops_executing;	/* num of ops currently executing */
   2987 	long	c_n_ops_pending;	/* num of ops pending execution */
   2988 	long	c_n_ops_completed;	/* num of ops completed */
   2989 	long	c_n_ops_async;		/* mum of ops currently executing asynchronously */
   2990 
   2991 	long	c_n_get;		/* num of get calls */
   2992 	long	c_n_read;		/* num of read calls */
   2993 	long	c_n_write;		/* num of write calls */
   2994 
   2995 	void	*c_extensions;		/* Netscape plugin */
   2996 
   2997 	/*
   2998 	 * Client connection handling
   2999 	 */
   3000 	ldap_pvt_thread_start_t	*c_clientfunc;
   3001 	void	*c_clientarg;
   3002 
   3003 	/*
   3004 	 * These are the "callbacks" that are available for back-ends to
   3005 	 * supply data back to connected clients that are connected
   3006 	 * through the "front-end".
   3007 	 */
   3008 	SEND_LDAP_RESULT *c_send_ldap_result;
   3009 	SEND_SEARCH_ENTRY *c_send_search_entry;
   3010 	SEND_SEARCH_REFERENCE *c_send_search_reference;
   3011 	SEND_LDAP_EXTENDED *c_send_ldap_extended;
   3012 	SEND_LDAP_INTERMEDIATE *c_send_ldap_intermediate;
   3013 };
   3014 
   3015 #ifdef LDAP_DEBUG
   3016 #ifdef LDAP_SYSLOG
   3017 #ifdef LOG_LOCAL4
   3018 #define SLAP_DEFAULT_SYSLOG_USER	LOG_LOCAL4
   3019 #endif /* LOG_LOCAL4 */
   3020 #endif /* !LDAP_SYSLOG */
   3021 #endif /* !LDAP_DEBUG */
   3022 
   3023 /*
   3024  * listener; need to access it from monitor backend
   3025  */
   3026 struct Listener {
   3027 	struct berval sl_url;
   3028 	struct berval sl_name;
   3029 	mode_t	sl_perms;
   3030 #ifdef HAVE_TLS
   3031 	int		sl_is_tls;
   3032 #endif
   3033 #ifdef LDAP_CONNECTIONLESS
   3034 	int	sl_is_udp;		/* UDP listener is also data port */
   3035 #endif
   3036 	int	sl_is_proxied;
   3037 	int	sl_mute;	/* Listener is temporarily disabled due to emfile */
   3038 	int	sl_busy;	/* Listener is busy (accept thread activated) */
   3039 	ber_socket_t sl_sd;
   3040 	Sockaddr sl_sa;
   3041 #define sl_addr	sl_sa.sa_in_addr
   3042 #define LDAP_TCP_BUFFER
   3043 #ifdef LDAP_TCP_BUFFER
   3044 	int	sl_tcp_rmem;	/* custom TCP read buffer size */
   3045 	int	sl_tcp_wmem;	/* custom TCP write buffer size */
   3046 #endif
   3047 };
   3048 
   3049 /*
   3050  * Better know these all around slapd
   3051  */
   3052 #define SLAP_LDAPDN_PRETTY 0x1
   3053 #define SLAP_LDAPDN_MAXLEN 8192
   3054 
   3055 /* number of response controls supported */
   3056 #define SLAP_MAX_RESPONSE_CONTROLS   6
   3057 
   3058 #ifdef SLAP_SCHEMA_EXPOSE
   3059 #define SLAP_CTRL_HIDE				0x00000000U
   3060 #else
   3061 #define SLAP_CTRL_HIDE				0x80000000U
   3062 #endif
   3063 
   3064 #define SLAP_CTRL_REQUIRES_ROOT		0x40000000U /* for Relax */
   3065 
   3066 #define SLAP_CTRL_GLOBAL			0x00800000U
   3067 #define SLAP_CTRL_GLOBAL_SEARCH		0x00010000U	/* for NOOP */
   3068 
   3069 #define SLAP_CTRL_OPFLAGS			0x0000FFFFU
   3070 #define SLAP_CTRL_ABANDON			0x00000001U
   3071 #define SLAP_CTRL_ADD				0x00002002U
   3072 #define SLAP_CTRL_BIND				0x00000004U
   3073 #define SLAP_CTRL_COMPARE			0x00001008U
   3074 #define SLAP_CTRL_DELETE			0x00002010U
   3075 #define SLAP_CTRL_MODIFY			0x00002020U
   3076 #define SLAP_CTRL_RENAME			0x00002040U
   3077 #define SLAP_CTRL_SEARCH			0x00001080U
   3078 #define SLAP_CTRL_UNBIND			0x00000100U
   3079 
   3080 #define SLAP_CTRL_INTROGATE	(SLAP_CTRL_COMPARE|SLAP_CTRL_SEARCH)
   3081 #define SLAP_CTRL_UPDATE \
   3082 	(SLAP_CTRL_ADD|SLAP_CTRL_DELETE|SLAP_CTRL_MODIFY|SLAP_CTRL_RENAME)
   3083 #define SLAP_CTRL_ACCESS	(SLAP_CTRL_INTROGATE|SLAP_CTRL_UPDATE)
   3084 
   3085 typedef int (SLAP_CTRL_PARSE_FN) LDAP_P((
   3086 	Operation *op,
   3087 	SlapReply *rs,
   3088 	LDAPControl *ctrl ));
   3089 
   3090 typedef int (*SLAP_ENTRY_INFO_FN) LDAP_P(( void *arg, Entry *e ));
   3091 
   3092 #define SLAP_SLAB_SIZE	(1024*1024)
   3093 #define SLAP_SLAB_STACK 1
   3094 
   3095 #define SLAP_ZONE_ALLOC 1
   3096 #undef SLAP_ZONE_ALLOC
   3097 
   3098 #ifdef LDAP_COMP_MATCH
   3099 /*
   3100  * Extensible Filter Definition
   3101  *
   3102  * MatchingRuleAssertion := SEQUENCE {
   3103  *	matchingRule	[1] MatchingRuleId OPTIONAL,
   3104  *	type		[2] AttributeDescription OPTIONAL,
   3105  *	matchValue	[3] AssertionValue,
   3106  *	dnAttributes	[4] BOOLEAN DEFAULT FALSE }
   3107  *
   3108  * Following ComponentFilter is contained in matchValue
   3109  *
   3110  * ComponentAssertion ::= SEQUENCE {
   3111  *	component		ComponentReference (SIZE(1..MAX)) OPTIONAL
   3112  *	useDefaultValues	BOOLEAN DEFAULT TRUE,
   3113  *	rule			MATCHING-RULE.&id,
   3114  *	value			MATCHING-RULE.&AssertionType }
   3115  *
   3116  * ComponentFilter ::= CHOICE {
   3117  *	item	[0] ComponentAssertion,
   3118  *	and	[1] SEQUENCE OF ComponentFilter,
   3119  *	or	[2] SEQUENCE OF ComponentFilter,
   3120  *	not	[3] ComponentFilter }
   3121  */
   3122 
   3123 #define LDAP_COMPREF_IDENTIFIER		((ber_tag_t) 0x80U)
   3124 #define LDAP_COMPREF_FROM_BEGINNING	((ber_tag_t) 0x81U)
   3125 #define LDAP_COMPREF_COUNT		((ber_tag_t) 0x82U)
   3126 #define LDAP_COMPREF_FROM_END		((ber_tag_t) 0x83U)
   3127 #define LDAP_COMPREF_CONTENT		((ber_tag_t) 0x84U)
   3128 #define LDAP_COMPREF_SELECT		((ber_tag_t) 0x85U)
   3129 #define LDAP_COMPREF_ALL		((ber_tag_t) 0x86U)
   3130 #define LDAP_COMPREF_DEFINED		((ber_tag_t) 0x87U)
   3131 #define LDAP_COMPREF_UNDEFINED		((ber_tag_t) 0x88U)
   3132 
   3133 #define LDAP_COMP_FILTER_AND		((ber_tag_t) 0xa0U)
   3134 #define LDAP_COMP_FILTER_OR		((ber_tag_t) 0xa1U)
   3135 #define LDAP_COMP_FILTER_NOT		((ber_tag_t) 0xa2U)
   3136 #define LDAP_COMP_FILTER_ITEM		((ber_tag_t) 0xa3U)
   3137 #define LDAP_COMP_FILTER_UNDEFINED	((ber_tag_t) 0xa4U)
   3138 
   3139 typedef struct ComponentId ComponentId;
   3140 typedef struct ComponentReference ComponentReference;
   3141 typedef struct ComponentAssertion ComponentAssertion;
   3142 typedef struct ComponentAssertionValue ComponentAssertionValue;
   3143 typedef struct ComponentSyntaxInfo ComponentSyntaxInfo;
   3144 typedef struct ComponentDesc ComponentDesc;
   3145 
   3146 struct ComponentData {
   3147 	void			*cd_mem_op;	/* nibble memory handler */
   3148 	ComponentSyntaxInfo**	cd_tree;	/* component tree */
   3149 };
   3150 
   3151 struct ComponentId {
   3152 	int		ci_type;
   3153 	ComponentId	*ci_next;
   3154 
   3155 	union comp_id_value{
   3156 		BerValue	ci_identifier;
   3157 		ber_int_t	ci_from_beginning;
   3158 		ber_int_t	ci_count;
   3159 		ber_int_t	ci_from_end;
   3160 		ber_int_t	ci_content;
   3161 		BerValue	ci_select_value;
   3162 		char		ci_all;
   3163 	} ci_val;
   3164 };
   3165 
   3166 struct ComponentReference {
   3167 	ComponentId	*cr_list;
   3168 	ComponentId	*cr_curr;
   3169 	struct berval	cr_string;
   3170 	int cr_len;
   3171 	/* Component Indexing */
   3172 	int		cr_asn_type_id;
   3173 	slap_mask_t	cr_indexmask;
   3174 	AttributeDescription* cr_ad;
   3175 	BerVarray	cr_nvals;
   3176 	ComponentReference* cr_next;
   3177 };
   3178 
   3179 struct ComponentAssertion {
   3180 	ComponentReference	*ca_comp_ref;
   3181 	ber_int_t		ca_use_def;
   3182 	MatchingRule		*ca_ma_rule;
   3183 	struct berval		ca_ma_value;
   3184 	ComponentData		ca_comp_data; /* componentized assertion */
   3185 	ComponentFilter		*ca_cf;
   3186 	MatchingRuleAssertion   *ca_mra;
   3187 };
   3188 
   3189 struct ComponentFilter {
   3190 	ber_tag_t	cf_choice;
   3191 	union cf_un_u {
   3192 		ber_int_t		cf_un_result;
   3193 		ComponentAssertion	*cf_un_ca;
   3194 		ComponentFilter		*cf_un_complex;
   3195 	} cf_un;
   3196 
   3197 #define cf_ca		cf_un.cf_un_ca
   3198 #define cf_result	cf_un.cf_un_result
   3199 #define cf_and		cf_un.cf_un_complex
   3200 #define cf_or		cf_un.cf_un_complex
   3201 #define cf_not		cf_un.cf_un_complex
   3202 #define cf_any		cf_un.cf_un_complex
   3203 
   3204 	ComponentFilter	*cf_next;
   3205 };
   3206 
   3207 struct ComponentAssertionValue {
   3208 	char* cav_buf;
   3209 	char* cav_ptr;
   3210 	char* cav_end;
   3211 };
   3212 
   3213 typedef int encoder_func LDAP_P((
   3214 	void* b,
   3215 	void* comp));
   3216 
   3217 typedef int gser_decoder_func LDAP_P((
   3218 	void* mem_op,
   3219 	void* b,
   3220 	ComponentSyntaxInfo** comp_syn_info,
   3221 	int* len,
   3222 	int mode));
   3223 
   3224 typedef int comp_free_func LDAP_P((
   3225 	void* b));
   3226 
   3227 typedef int ber_decoder_func LDAP_P((
   3228 	void* mem_op,
   3229 	void* b,
   3230 	int tag,
   3231 	int elmtLen,
   3232 	ComponentSyntaxInfo* comp_syn_info,
   3233 	int* len,
   3234 	int mode));
   3235 
   3236 typedef int ber_tag_decoder_func LDAP_P((
   3237 	void* mem_op,
   3238 	void* b,
   3239 	ComponentSyntaxInfo* comp_syn_info,
   3240 	int* len,
   3241 	int mode));
   3242 
   3243 typedef void* extract_component_from_id_func LDAP_P((
   3244 	void* mem_op,
   3245 	ComponentReference* cr,
   3246 	void* comp ));
   3247 
   3248 typedef void* convert_attr_to_comp_func LDAP_P ((
   3249         Attribute* a,
   3250 	Syntax* syn,
   3251         struct berval* bv ));
   3252 
   3253 typedef void* alloc_nibble_func LDAP_P ((
   3254 	int initial_size,
   3255 	int increment_size ));
   3256 
   3257 typedef void free_nibble_func LDAP_P ((
   3258 	void* nm ));
   3259 
   3260 typedef void convert_assert_to_comp_func LDAP_P ((
   3261 	void *mem_op,
   3262         ComponentSyntaxInfo* csi_attr,
   3263         struct berval* bv,
   3264         ComponentSyntaxInfo** csi,
   3265         int* len,
   3266         int mode ));
   3267 
   3268 typedef int convert_asn_to_ldap_func LDAP_P ((
   3269         ComponentSyntaxInfo* csi,
   3270         struct berval *bv ));
   3271 
   3272 typedef void free_component_func LDAP_P ((
   3273         void* mem_op));
   3274 
   3275 typedef int test_component_func LDAP_P ((
   3276 	void* attr_mem_op,
   3277 	void* assert_mem_op,
   3278         ComponentSyntaxInfo* csi,
   3279 	ComponentAssertion* ca));
   3280 
   3281 typedef void* test_membership_func LDAP_P ((
   3282 	void* in ));
   3283 
   3284 typedef void* get_component_info_func LDAP_P ((
   3285 	int in ));
   3286 
   3287 typedef int component_encoder_func LDAP_P ((
   3288 	void* mem_op,
   3289 	ComponentSyntaxInfo* csi,
   3290 	struct berval* nvals ));
   3291 
   3292 typedef int allcomponent_matching_func LDAP_P((
   3293 	char* oid,
   3294 	ComponentSyntaxInfo* comp1,
   3295 	ComponentSyntaxInfo* comp));
   3296 
   3297 struct ComponentDesc {
   3298 	/* Don't change the order of following four fields */
   3299 	int				cd_tag;
   3300 	AttributeType			*cd_comp_type;
   3301 	struct berval			cd_ad_type;	/* ad_type, ad_cname */
   3302 	struct berval			cd_ad_cname;	/* ad_type, ad_cname */
   3303 	unsigned			cd_flags;	/* ad_flags */
   3304 	int				cd_type;
   3305 	int				cd_type_id;
   3306 	encoder_func			*cd_ldap_encoder;
   3307 	encoder_func			*cd_gser_encoder;
   3308 	encoder_func			*cd_ber_encoder;
   3309 	gser_decoder_func		*cd_gser_decoder;
   3310 	ber_decoder_func		*cd_ber_decoder;
   3311 	comp_free_func			*cd_free;
   3312 	extract_component_from_id_func*  cd_extract_i;
   3313 	allcomponent_matching_func	*cd_all_match;
   3314 };
   3315 
   3316 struct ComponentSyntaxInfo {
   3317 	Syntax		*csi_syntax;
   3318 	ComponentDesc	*csi_comp_desc;
   3319 };
   3320 
   3321 #endif /* LDAP_COMP_MATCH */
   3322 
   3323 #ifdef SLAP_ZONE_ALLOC
   3324 #define SLAP_ZONE_SIZE 0x80000		/* 512KB */
   3325 #define SLAP_ZONE_SHIFT 19
   3326 #define SLAP_ZONE_INITSIZE 0x800000 /* 8MB */
   3327 #define SLAP_ZONE_MAXSIZE 0x80000000/* 2GB */
   3328 #define SLAP_ZONE_DELTA 0x800000	/* 8MB */
   3329 #define SLAP_ZONE_ZOBLOCK 256
   3330 
   3331 struct zone_object {
   3332 	void *zo_ptr;
   3333 	int zo_siz;
   3334 	int zo_idx;
   3335 	int zo_blockhead;
   3336 	LDAP_LIST_ENTRY(zone_object) zo_link;
   3337 };
   3338 
   3339 struct zone_latency_history {
   3340 	double zlh_latency;
   3341 	LDAP_STAILQ_ENTRY(zone_latency_history) zlh_next;
   3342 };
   3343 
   3344 struct zone_heap {
   3345 	int zh_fd;
   3346 	int zh_zonesize;
   3347 	int zh_zoneorder;
   3348 	int zh_numzones;
   3349 	int zh_maxzones;
   3350 	int zh_deltazones;
   3351 	void **zh_zones;
   3352 	ldap_pvt_thread_rdwr_t *zh_znlock;
   3353 	Avlnode *zh_zonetree;
   3354 	unsigned char ***zh_maps;
   3355 	int *zh_seqno;
   3356 	LDAP_LIST_HEAD( zh_freelist, zone_object ) *zh_free;
   3357 	LDAP_LIST_HEAD( zh_so, zone_object ) zh_zopool;
   3358 	ldap_pvt_thread_mutex_t zh_mutex;
   3359 	ldap_pvt_thread_rdwr_t zh_lock;
   3360 	double zh_ema_latency;
   3361 	unsigned long zh_ema_samples;
   3362 	LDAP_STAILQ_HEAD( zh_latency_history, zone_latency_history )
   3363 				zh_latency_history_queue;
   3364 	int zh_latency_history_qlen;
   3365 	int zh_latency_jump;
   3366 	int zh_swapping;
   3367 };
   3368 #endif
   3369 
   3370 #define SLAP_BACKEND_INIT_MODULE(b) \
   3371 	static BackendInfo bi;	\
   3372 	int \
   3373 	init_module( int argc, char *argv[] ) \
   3374 	{ \
   3375 		bi.bi_type = #b ; \
   3376 		bi.bi_init = b ## _back_initialize; \
   3377 		backend_add( &bi ); \
   3378 		return 0; \
   3379 	}
   3380 
   3381 typedef int (OV_init)(void);
   3382 typedef struct slap_oinit_t {
   3383 	const char	*ov_type;
   3384 	OV_init		*ov_init;
   3385 } OverlayInit;
   3386 
   3387 LDAP_END_DECL
   3388 
   3389 #include "proto-slap.h"
   3390 
   3391 #endif /* _SLAP_H_ */
   3392