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