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 "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 LDAP_BEGIN_DECL
60 
61 #ifdef LDAP_DEVEL
62 #define LDAP_COLLECTIVE_ATTRIBUTES
63 #define LDAP_COMP_MATCH
64 #define LDAP_SYNC_TIMESTAMP
65 #define SLAP_CONTROL_X_WHATFAILED
66 #define SLAP_CONFIG_DELETE
67 #ifndef SLAP_SCHEMA_EXPOSE
68 #define SLAP_SCHEMA_EXPOSE
69 #endif
70 #endif
71 
72 #define LDAP_DYNAMIC_OBJECTS
73 #define SLAP_CONTROL_X_TREE_DELETE LDAP_CONTROL_X_TREE_DELETE
74 #define SLAP_CONTROL_X_SESSION_TRACKING
75 #define SLAP_DISTPROC
76 
77 #ifdef ENABLE_REWRITE
78 #define SLAP_AUTH_REWRITE	1 /* use librewrite for sasl-regexp */
79 #endif
80 
81 /*
82  * SLAPD Memory allocation macros
83  *
84  * Unlike ch_*() routines, these routines do not assert() upon
85  * allocation error.  They are intended to be used instead of
86  * ch_*() routines where the caller has implemented proper
87  * checking for and handling of allocation errors.
88  *
89  * Patches to convert ch_*() calls to SLAP_*() calls welcomed.
90  */
91 #define SLAP_MALLOC(s)      ber_memalloc((s))
92 #define SLAP_CALLOC(n,s)    ber_memcalloc((n),(s))
93 #define SLAP_REALLOC(p,s)   ber_memrealloc((p),(s))
94 #define SLAP_FREE(p)        ber_memfree((p))
95 #define SLAP_VFREE(v)       ber_memvfree((void**)(v))
96 #define SLAP_STRDUP(s)      ber_strdup((s))
97 #define SLAP_STRNDUP(s,l)   ber_strndup((s),(l))
98 
99 #ifdef f_next
100 #undef f_next /* name conflict between sys/file.h on SCO and struct filter */
101 #endif
102 
103 #define SERVICE_NAME  OPENLDAP_PACKAGE "-slapd"
104 #define SLAPD_ANONYMOUS ""
105 
106 #ifdef HAVE_TCPD
107 # include <tcpd.h>
108 # define SLAP_STRING_UNKNOWN	STRING_UNKNOWN
109 #else /* ! TCP Wrappers */
110 # define SLAP_STRING_UNKNOWN	"unknown"
111 #endif /* ! TCP Wrappers */
112 
113 /* LDAPMod.mod_op value ===> Must be kept in sync with ldap.h! */
114 /* These values are used internally by the backends. */
115 /* SLAP_MOD_SOFTADD allows adding values that already exist without getting
116  * an error as required by modrdn when the new rdn was already an attribute
117  * value itself.
118  */
119 #define SLAP_MOD_SOFTADD		0x1000
120 /* SLAP_MOD_SOFTDEL allows deleting values if they exist without getting
121  * an error otherwise.
122  */
123 #define SLAP_MOD_SOFTDEL		0x1001
124 /* SLAP_MOD_ADD_IF_NOT_PRESENT allows adding values unless the attribute
125  * is already present without getting an error.
126  */
127 #define SLAP_MOD_ADD_IF_NOT_PRESENT	0x1002
128 /* SLAP_MOD_DEL_IF_PRESENT allows deleting values if the attribute
129  * is present, without getting an error otherwise.
130  * The semantics can be obtained using SLAP_MOD_SOFTDEL with NULL values.
131  */
132 
133 #define MAXREMATCHES (100)
134 
135 #define SLAP_MAX_WORKER_THREADS		(16)
136 
137 #define SLAP_SB_MAX_INCOMING_DEFAULT ((1<<18) - 1)
138 #define SLAP_SB_MAX_INCOMING_AUTH ((1<<24) - 1)
139 
140 #define SLAP_CONN_MAX_PENDING_DEFAULT	100
141 #define SLAP_CONN_MAX_PENDING_AUTH	1000
142 
143 #define SLAP_TEXT_BUFLEN (256)
144 
145 /* pseudo error code indicating abandoned operation */
146 #define SLAPD_ABANDON (-1024)
147 
148 /* pseudo error code indicating disconnect */
149 #define SLAPD_DISCONNECT (-1025)
150 
151 /* unknown config file directive */
152 #define SLAP_CONF_UNKNOWN (-1026)
153 
154 /* We assume "C" locale, that is US-ASCII */
155 #define ASCII_SPACE(c)	( (c) == ' ' )
156 #define ASCII_LOWER(c)	( (c) >= 'a' && (c) <= 'z' )
157 #define ASCII_UPPER(c)	( (c) >= 'A' && (c) <= 'Z' )
158 #define ASCII_ALPHA(c)	( ASCII_LOWER(c) || ASCII_UPPER(c) )
159 #define ASCII_DIGIT(c)	( (c) >= '0' && (c) <= '9' )
160 #define ASCII_HEXLOWER(c)	( (c) >= 'a' && (c) <= 'f' )
161 #define ASCII_HEXUPPER(c)	( (c) >= 'A' && (c) <= 'F' )
162 #define ASCII_HEX(c)	( ASCII_DIGIT(c) || \
163 	ASCII_HEXLOWER(c) || ASCII_HEXUPPER(c) )
164 #define ASCII_ALNUM(c)	( ASCII_ALPHA(c) || ASCII_DIGIT(c) )
165 #define ASCII_PRINTABLE(c) ( (c) >= ' ' && (c) <= '~' )
166 
167 #define SLAP_NIBBLE(c) ((c)&0x0f)
168 #define SLAP_ESCAPE_CHAR ('\\')
169 #define SLAP_ESCAPE_LO(c) ( "0123456789ABCDEF"[SLAP_NIBBLE(c)] )
170 #define SLAP_ESCAPE_HI(c) ( SLAP_ESCAPE_LO((c)>>4) )
171 
172 #define FILTER_ESCAPE(c) ( (c) == '*' || (c) == '\\' \
173 	|| (c) == '(' || (c) == ')' || !ASCII_PRINTABLE(c) )
174 
175 #define DN_ESCAPE(c)	((c) == SLAP_ESCAPE_CHAR)
176 /* NOTE: for consistency, this macro must only operate
177  * on normalized/pretty DN, such that ';' is never used
178  * as RDN separator, and all occurrences of ';' must be escaped */
179 #define DN_SEPARATOR(c)	((c) == ',')
180 #define RDN_ATTRTYPEANDVALUE_SEPARATOR(c) ((c) == '+') /* RFC 4514 */
181 #define RDN_SEPARATOR(c) (DN_SEPARATOR(c) || RDN_ATTRTYPEANDVALUE_SEPARATOR(c))
182 #define RDN_NEEDSESCAPE(c)	((c) == '\\' || (c) == '"')
183 
184 #define DESC_LEADCHAR(c)	( ASCII_ALPHA(c) )
185 #define DESC_CHAR(c)	( ASCII_ALNUM(c) || (c) == '-' )
186 #define OID_LEADCHAR(c)	( ASCII_DIGIT(c) )
187 #define OID_SEPARATOR(c)	( (c) == '.' )
188 #define OID_CHAR(c)	( OID_LEADCHAR(c) || OID_SEPARATOR(c) )
189 
190 #define ATTR_LEADCHAR(c)	( DESC_LEADCHAR(c) || OID_LEADCHAR(c) )
191 #define ATTR_CHAR(c)	( DESC_CHAR((c)) || OID_SEPARATOR(c) )
192 
193 #define AD_LEADCHAR(c)	( ATTR_LEADCHAR(c) )
194 #define AD_CHAR(c)		( ATTR_CHAR(c) || (c) == ';' )
195 
196 #define SLAP_NUMERIC(c) ( ASCII_DIGIT(c) || ASCII_SPACE(c) )
197 
198 #define SLAP_PRINTABLE(c)	( ASCII_ALNUM(c) || (c) == '\'' || \
199 	(c) == '(' || (c) == ')' || (c) == '+' || (c) == ',' || \
200 	(c) == '-' || (c) == '.' || (c) == '/' || (c) == ':' || \
201 	(c) == '?' || (c) == ' ' || (c) == '=' )
202 #define SLAP_PRINTABLES(c)	( SLAP_PRINTABLE(c) || (c) == '$' )
203 
204 /* must match in schema_init.c */
205 #define SLAPD_DN_SYNTAX			"1.3.6.1.4.1.1466.115.121.1.12"
206 #define SLAPD_NAMEUID_SYNTAX	"1.3.6.1.4.1.1466.115.121.1.34"
207 #define SLAPD_INTEGER_SYNTAX	"1.3.6.1.4.1.1466.115.121.1.27"
208 #define SLAPD_GROUP_ATTR		"member"
209 #define SLAPD_GROUP_CLASS		"groupOfNames"
210 #define SLAPD_ROLE_ATTR			"roleOccupant"
211 #define SLAPD_ROLE_CLASS		"organizationalRole"
212 
213 #define SLAPD_TOP_OID			"2.5.6.0"
214 
215 LDAP_SLAPD_V (int) slap_debug;
216 
217 typedef unsigned long slap_mask_t;
218 
219 /* Security Strength Factor */
220 typedef unsigned slap_ssf_t;
221 
222 typedef struct slap_ssf_set {
223 	slap_ssf_t sss_ssf;
224 	slap_ssf_t sss_transport;
225 	slap_ssf_t sss_tls;
226 	slap_ssf_t sss_sasl;
227 	slap_ssf_t sss_update_ssf;
228 	slap_ssf_t sss_update_transport;
229 	slap_ssf_t sss_update_tls;
230 	slap_ssf_t sss_update_sasl;
231 	slap_ssf_t sss_simple_bind;
232 } slap_ssf_set_t;
233 
234 /* Flags for telling slap_sasl_getdn() what type of identity is being passed */
235 #define SLAP_GETDN_AUTHCID 2
236 #define SLAP_GETDN_AUTHZID 4
237 
238 /*
239  * Index types
240  */
241 #define SLAP_INDEX_TYPE           0x00FFUL
242 #define SLAP_INDEX_UNDEFINED      0x0001UL
243 #define SLAP_INDEX_PRESENT        0x0002UL
244 #define SLAP_INDEX_EQUALITY       0x0004UL
245 #define SLAP_INDEX_APPROX         0x0008UL
246 #define SLAP_INDEX_SUBSTR         0x0010UL
247 #define SLAP_INDEX_EXTENDED		  0x0020UL
248 
249 #define SLAP_INDEX_DEFAULT        SLAP_INDEX_EQUALITY
250 
251 #define IS_SLAP_INDEX(mask, type)	(((mask) & (type)) == (type))
252 
253 #define SLAP_INDEX_SUBSTR_TYPE    0x0F00UL
254 
255 #define SLAP_INDEX_SUBSTR_INITIAL ( SLAP_INDEX_SUBSTR | 0x0100UL )
256 #define SLAP_INDEX_SUBSTR_ANY     ( SLAP_INDEX_SUBSTR | 0x0200UL )
257 #define SLAP_INDEX_SUBSTR_FINAL   ( SLAP_INDEX_SUBSTR | 0x0400UL )
258 #define SLAP_INDEX_SUBSTR_DEFAULT \
259 	( SLAP_INDEX_SUBSTR \
260 	| SLAP_INDEX_SUBSTR_INITIAL \
261 	| SLAP_INDEX_SUBSTR_ANY \
262 	| SLAP_INDEX_SUBSTR_FINAL )
263 
264 /* defaults for initial/final substring indices */
265 #define SLAP_INDEX_SUBSTR_IF_MINLEN_DEFAULT	2
266 #define SLAP_INDEX_SUBSTR_IF_MAXLEN_DEFAULT	4
267 
268 /* defaults for any substring indices */
269 #define SLAP_INDEX_SUBSTR_ANY_LEN_DEFAULT		4
270 #define SLAP_INDEX_SUBSTR_ANY_STEP_DEFAULT		2
271 
272 /* default for ordered integer index keys */
273 #define SLAP_INDEX_INTLEN_DEFAULT	4
274 
275 #define SLAP_INDEX_FLAGS         0xF000UL
276 #define SLAP_INDEX_NOSUBTYPES    0x1000UL /* don't use index w/ subtypes */
277 #define SLAP_INDEX_NOTAGS        0x2000UL /* don't use index w/ tags */
278 
279 /*
280  * there is a single index for each attribute.  these prefixes ensure
281  * that there is no collision among keys.
282  */
283 #define SLAP_INDEX_EQUALITY_PREFIX	'=' 	/* prefix for equality keys     */
284 #define SLAP_INDEX_APPROX_PREFIX	'~'		/* prefix for approx keys       */
285 #define SLAP_INDEX_SUBSTR_PREFIX	'*'		/* prefix for substring keys    */
286 #define SLAP_INDEX_SUBSTR_INITIAL_PREFIX '^'
287 #define SLAP_INDEX_SUBSTR_FINAL_PREFIX '$'
288 #define SLAP_INDEX_CONT_PREFIX		'.'		/* prefix for continuation keys */
289 
290 #define SLAP_SYNTAX_MATCHINGRULES_OID	 "1.3.6.1.4.1.1466.115.121.1.30"
291 #define SLAP_SYNTAX_ATTRIBUTETYPES_OID	 "1.3.6.1.4.1.1466.115.121.1.3"
292 #define SLAP_SYNTAX_OBJECTCLASSES_OID	 "1.3.6.1.4.1.1466.115.121.1.37"
293 #define SLAP_SYNTAX_MATCHINGRULEUSES_OID "1.3.6.1.4.1.1466.115.121.1.31"
294 #define SLAP_SYNTAX_CONTENTRULE_OID	 "1.3.6.1.4.1.1466.115.121.1.16"
295 
296 /*
297  * represents schema information for a database
298  */
299 enum {
300 	SLAP_SCHERR_OUTOFMEM = 1,
301 	SLAP_SCHERR_CLASS_NOT_FOUND,
302 	SLAP_SCHERR_CLASS_BAD_USAGE,
303 	SLAP_SCHERR_CLASS_BAD_SUP,
304 	SLAP_SCHERR_CLASS_DUP,
305 	SLAP_SCHERR_CLASS_INCONSISTENT,
306 	SLAP_SCHERR_ATTR_NOT_FOUND,
307 	SLAP_SCHERR_ATTR_BAD_MR,
308 	SLAP_SCHERR_ATTR_BAD_USAGE,
309 	SLAP_SCHERR_ATTR_BAD_SUP,
310 	SLAP_SCHERR_ATTR_INCOMPLETE,
311 	SLAP_SCHERR_ATTR_DUP,
312 	SLAP_SCHERR_ATTR_INCONSISTENT,
313 	SLAP_SCHERR_MR_NOT_FOUND,
314 	SLAP_SCHERR_MR_INCOMPLETE,
315 	SLAP_SCHERR_MR_DUP,
316 	SLAP_SCHERR_SYN_NOT_FOUND,
317 	SLAP_SCHERR_SYN_DUP,
318 	SLAP_SCHERR_SYN_SUP_NOT_FOUND,
319 	SLAP_SCHERR_SYN_SUBST_NOT_SPECIFIED,
320 	SLAP_SCHERR_SYN_SUBST_NOT_FOUND,
321 	SLAP_SCHERR_NO_NAME,
322 	SLAP_SCHERR_NOT_SUPPORTED,
323 	SLAP_SCHERR_BAD_DESCR,
324 	SLAP_SCHERR_OIDM,
325 	SLAP_SCHERR_CR_DUP,
326 	SLAP_SCHERR_CR_BAD_STRUCT,
327 	SLAP_SCHERR_CR_BAD_AUX,
328 	SLAP_SCHERR_CR_BAD_AT,
329 
330 	SLAP_SCHERR_LAST
331 };
332 
333 /* forward declarations */
334 typedef struct Syntax Syntax;
335 typedef struct MatchingRule MatchingRule;
336 typedef struct MatchingRuleUse MatchingRuleUse;
337 typedef struct MatchingRuleAssertion MatchingRuleAssertion;
338 typedef struct OidMacro OidMacro;
339 typedef struct ObjectClass ObjectClass;
340 typedef struct AttributeType AttributeType;
341 typedef struct AttributeDescription AttributeDescription;
342 typedef struct AttributeName AttributeName;
343 typedef struct ContentRule ContentRule;
344 
345 typedef struct AttributeAssertion AttributeAssertion;
346 typedef struct SubstringsAssertion SubstringsAssertion;
347 typedef struct Filter Filter;
348 typedef struct ValuesReturnFilter ValuesReturnFilter;
349 typedef struct Attribute Attribute;
350 #ifdef LDAP_COMP_MATCH
351 typedef struct ComponentData ComponentData;
352 typedef struct ComponentFilter ComponentFilter;
353 #endif
354 
355 typedef struct Entry Entry;
356 typedef struct Modification Modification;
357 typedef struct Modifications Modifications;
358 typedef struct LDAPModList LDAPModList;
359 
360 typedef struct BackendInfo BackendInfo;		/* per backend type */
361 typedef struct BackendDB BackendDB;		/* per backend database */
362 
363 typedef struct Connection Connection;
364 typedef struct Operation Operation;
365 typedef struct SlapReply SlapReply;
366 /* end of forward declarations */
367 
368 typedef union Sockaddr {
369 	struct sockaddr sa_addr;
370 	struct sockaddr_in sa_in_addr;
371 #ifdef LDAP_PF_INET6
372 	struct sockaddr_storage sa_storage;
373 	struct sockaddr_in6 sa_in6_addr;
374 #endif
375 #ifdef LDAP_PF_LOCAL
376 	struct sockaddr_un sa_un_addr;
377 #endif
378 } Sockaddr;
379 
380 #ifdef LDAP_PF_INET6
381 extern int slap_inet4or6;
382 #endif
383 
384 struct OidMacro {
385 	struct berval som_oid;
386 	BerVarray som_names;
387 	BerVarray som_subs;
388 #define	SLAP_OM_HARDCODE	0x10000U	/* This is hardcoded schema */
389 	int som_flags;
390 	LDAP_STAILQ_ENTRY(OidMacro) som_next;
391 };
392 
393 typedef int slap_syntax_validate_func LDAP_P((
394 	Syntax *syntax,
395 	struct berval * in));
396 
397 typedef int slap_syntax_transform_func LDAP_P((
398 	Syntax *syntax,
399 	struct berval * in,
400 	struct berval * out,
401 	void *memctx));
402 
403 #ifdef LDAP_COMP_MATCH
404 typedef void* slap_component_transform_func LDAP_P((
405 	struct berval * in ));
406 struct ComponentDesc;
407 #endif
408 
409 struct Syntax {
410 	LDAPSyntax			ssyn_syn;
411 #define ssyn_oid		ssyn_syn.syn_oid
412 #define ssyn_desc		ssyn_syn.syn_desc
413 #define ssyn_extensions	ssyn_syn.syn_extensions
414 	/*
415 	 * Note: the former
416 	ber_len_t	ssyn_oidlen;
417 	 * has been replaced by a struct berval that uses the value
418 	 * provided by ssyn_syn.syn_oid; a macro that expands to
419 	 * the bv_len field of the berval is provided for backward
420 	 * compatibility.  CAUTION: NEVER FREE THE BERVAL
421 	 */
422 	struct berval	ssyn_bvoid;
423 #define	ssyn_oidlen	ssyn_bvoid.bv_len
424 
425 	unsigned int ssyn_flags;
426 
427 #define SLAP_SYNTAX_NONE	0x0000U
428 #define SLAP_SYNTAX_BLOB	0x0001U /* syntax treated as blob (audio) */
429 #define SLAP_SYNTAX_BINARY	0x0002U /* binary transfer required (certificate) */
430 #define SLAP_SYNTAX_BER		0x0004U /* stored in BER encoding (certificate) */
431 #ifdef SLAP_SCHEMA_EXPOSE
432 #define SLAP_SYNTAX_HIDE	0x0000U /* publish everything */
433 #else
434 #define SLAP_SYNTAX_HIDE	0x8000U /* hide (do not publish) */
435 #endif
436 #define	SLAP_SYNTAX_HARDCODE	0x10000U	/* This is hardcoded schema */
437 #define	SLAP_SYNTAX_DN		0x20000U	/* Treat like a DN */
438 
439 	Syntax				**ssyn_sups;
440 
441 	slap_syntax_validate_func	*ssyn_validate;
442 	slap_syntax_transform_func	*ssyn_pretty;
443 
444 #ifdef SLAPD_BINARY_CONVERSION
445 	/* convert to and from binary */
446 	slap_syntax_transform_func	*ssyn_ber2str;
447 	slap_syntax_transform_func	*ssyn_str2ber;
448 #endif
449 #ifdef LDAP_COMP_MATCH
450 	slap_component_transform_func *ssyn_attr2comp;
451 	struct ComponentDesc* ssync_comp_syntax;
452 #endif
453 
454 	LDAP_STAILQ_ENTRY(Syntax)	ssyn_next;
455 };
456 
457 #define slap_syntax_is_flag(s,flag) ((int)((s)->ssyn_flags & (flag)) ? 1 : 0)
458 #define slap_syntax_is_blob(s)		slap_syntax_is_flag((s),SLAP_SYNTAX_BLOB)
459 #define slap_syntax_is_binary(s)	slap_syntax_is_flag((s),SLAP_SYNTAX_BINARY)
460 #define slap_syntax_is_ber(s)		slap_syntax_is_flag((s),SLAP_SYNTAX_BER)
461 #define slap_syntax_is_hidden(s)	slap_syntax_is_flag((s),SLAP_SYNTAX_HIDE)
462 
463 typedef struct slap_syntax_defs_rec {
464 	char *sd_desc;
465 	int sd_flags;
466 	char **sd_sups;
467 	slap_syntax_validate_func *sd_validate;
468 	slap_syntax_transform_func *sd_pretty;
469 #ifdef SLAPD_BINARY_CONVERSION
470 	slap_syntax_transform_func *sd_ber2str;
471 	slap_syntax_transform_func *sd_str2ber;
472 #endif
473 } slap_syntax_defs_rec;
474 
475 /* X -> Y Converter */
476 typedef int slap_mr_convert_func LDAP_P((
477 	struct berval * in,
478 	struct berval * out,
479 	void *memctx ));
480 
481 /* Normalizer */
482 typedef int slap_mr_normalize_func LDAP_P((
483 	slap_mask_t use,
484 	Syntax *syntax, /* NULL if in is asserted value */
485 	MatchingRule *mr,
486 	struct berval *in,
487 	struct berval *out,
488 	void *memctx ));
489 
490 /* Match (compare) function */
491 typedef int slap_mr_match_func LDAP_P((
492 	int *match,
493 	slap_mask_t use,
494 	Syntax *syntax,	/* syntax of stored value */
495 	MatchingRule *mr,
496 	struct berval *value,
497 	void *assertValue ));
498 
499 /* Index generation function */
500 typedef int slap_mr_indexer_func LDAP_P((
501 	slap_mask_t use,
502 	slap_mask_t mask,
503 	Syntax *syntax,	/* syntax of stored value */
504 	MatchingRule *mr,
505 	struct berval *prefix,
506 	BerVarray values,
507 	BerVarray *keys,
508 	void *memctx ));
509 
510 /* Filter index function */
511 typedef int slap_mr_filter_func LDAP_P((
512 	slap_mask_t use,
513 	slap_mask_t mask,
514 	Syntax *syntax,	/* syntax of stored value */
515 	MatchingRule *mr,
516 	struct berval *prefix,
517 	void *assertValue,
518 	BerVarray *keys,
519 	void *memctx ));
520 
521 struct MatchingRule {
522 	LDAPMatchingRule		smr_mrule;
523 	MatchingRuleUse			*smr_mru;
524 	/* RFC 4512 string representation */
525 	struct berval			smr_str;
526 	/*
527 	 * Note: the former
528 	 *			ber_len_t	smr_oidlen;
529 	 * has been replaced by a struct berval that uses the value
530 	 * provided by smr_mrule.mr_oid; a macro that expands to
531 	 * the bv_len field of the berval is provided for backward
532 	 * compatibility.  CAUTION: NEVER FREE THE BERVAL
533 	 */
534 	struct berval			smr_bvoid;
535 #define	smr_oidlen			smr_bvoid.bv_len
536 
537 	slap_mask_t			smr_usage;
538 
539 #ifdef SLAP_SCHEMA_EXPOSE
540 #define SLAP_MR_HIDE			0x0000U
541 #else
542 #define SLAP_MR_HIDE			0x8000U
543 #endif
544 
545 #define SLAP_MR_MUTATION_NORMALIZER	0x4000U
546 
547 #define SLAP_MR_TYPE_MASK		0x0F00U
548 #define SLAP_MR_SUBTYPE_MASK		0x00F0U
549 #define SLAP_MR_USAGE			0x000FU
550 
551 #define SLAP_MR_NONE			0x0000U
552 #define SLAP_MR_EQUALITY		0x0100U
553 #define SLAP_MR_ORDERING		0x0200U
554 #define SLAP_MR_SUBSTR			0x0400U
555 #define SLAP_MR_EXT			0x0800U /* implicitly extensible */
556 #define	SLAP_MR_ORDERED_INDEX		0x1000U
557 #ifdef LDAP_COMP_MATCH
558 #define SLAP_MR_COMPONENT		0x2000U
559 #endif
560 
561 #define SLAP_MR_EQUALITY_APPROX	( SLAP_MR_EQUALITY | 0x0010U )
562 
563 #define SLAP_MR_SUBSTR_INITIAL	( SLAP_MR_SUBSTR | 0x0010U )
564 #define SLAP_MR_SUBSTR_ANY	( SLAP_MR_SUBSTR | 0x0020U )
565 #define SLAP_MR_SUBSTR_FINAL	( SLAP_MR_SUBSTR | 0x0040U )
566 
567 
568 /*
569  * The asserted value, depending on the particular usage,
570  * is expected to conform to either the assertion syntax
571  * or the attribute syntax.   In some cases, the syntax of
572  * the value is known.  If so, these flags indicate which
573  * syntax the value is expected to conform to.  If not,
574  * neither of these flags is set (until the syntax of the
575  * provided value is determined).  If the value is of the
576  * attribute syntax, the flag is changed once a value of
577  * the assertion syntax is derived from the provided value.
578  */
579 #define SLAP_MR_VALUE_OF_ASSERTION_SYNTAX	0x0001U
580 #define SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX	0x0002U
581 #define SLAP_MR_VALUE_OF_SYNTAX			(SLAP_MR_VALUE_OF_ASSERTION_SYNTAX|SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX)
582 #define SLAP_MR_DENORMALIZE			(SLAP_MR_MUTATION_NORMALIZER)
583 
584 #define SLAP_MR_IS_VALUE_OF_ATTRIBUTE_SYNTAX( usage ) \
585 	((usage) & SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX )
586 #define SLAP_MR_IS_VALUE_OF_ASSERTION_SYNTAX( usage ) \
587 	((usage) & SLAP_MR_VALUE_OF_ASSERTION_SYNTAX )
588 #ifdef LDAP_DEBUG
589 #define SLAP_MR_IS_VALUE_OF_SYNTAX( usage ) \
590 	((usage) & SLAP_MR_VALUE_OF_SYNTAX)
591 #else
592 #define SLAP_MR_IS_VALUE_OF_SYNTAX( usage )	(1)
593 #endif
594 #define SLAP_MR_IS_DENORMALIZE( usage ) \
595 	((usage) & SLAP_MR_DENORMALIZE )
596 
597 /* either or both the asserted value or attribute value
598  * may be provided in normalized form
599  */
600 #define SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH		0x0004U
601 #define SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH	0x0008U
602 
603 #define SLAP_IS_MR_ASSERTION_SYNTAX_MATCH( usage ) \
604 	(!((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_MATCH))
605 #define SLAP_IS_MR_ATTRIBUTE_SYNTAX_MATCH( usage ) \
606 	((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_MATCH)
607 
608 #define SLAP_IS_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH( usage ) \
609 	(((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH) \
610 		== SLAP_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH)
611 #define SLAP_IS_MR_ATTRIBUTE_SYNTAX_NONCONVERTED_MATCH( usage ) \
612 	(((usage) & SLAP_MR_ATTRIBUTE_SYNTAX_CONVERTED_MATCH) \
613 		== SLAP_MR_ATTRIBUTE_SYNTAX_MATCH)
614 
615 #define SLAP_IS_MR_ASSERTED_VALUE_NORMALIZED_MATCH( usage ) \
616 	((usage) & SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH )
617 #define SLAP_IS_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH( usage ) \
618 	((usage) & SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH )
619 
620 	Syntax			*smr_syntax;
621 	slap_mr_convert_func	*smr_convert;
622 	slap_mr_normalize_func	*smr_normalize;
623 	slap_mr_match_func	*smr_match;
624 	slap_mr_indexer_func	*smr_indexer;
625 	slap_mr_filter_func	*smr_filter;
626 
627 	/*
628 	 * null terminated array of syntaxes compatible with this syntax
629 	 * note: when MS_EXT is set, this MUST NOT contain the assertion
630 	 * syntax of the rule.  When MS_EXT is not set, it MAY.
631 	 */
632 	Syntax			**smr_compat_syntaxes;
633 
634 	/*
635 	 * For equality rules, refers to an associated approximate rule.
636 	 * For non-equality rules, refers to an associated equality rule.
637 	 */
638 	MatchingRule	*smr_associated;
639 
640 #define SLAP_MR_ASSOCIATED(mr,amr)	\
641 	(((mr) == (amr)) || ((mr)->smr_associated == (amr)))
642 
643 	LDAP_SLIST_ENTRY(MatchingRule)	smr_next;
644 
645 #define smr_oid				smr_mrule.mr_oid
646 #define smr_names			smr_mrule.mr_names
647 #define smr_desc			smr_mrule.mr_desc
648 #define smr_obsolete		smr_mrule.mr_obsolete
649 #define smr_syntax_oid		smr_mrule.mr_syntax_oid
650 #define smr_extensions		smr_mrule.mr_extensions
651 };
652 
653 struct MatchingRuleUse {
654 	LDAPMatchingRuleUse		smru_mruleuse;
655 	MatchingRule			*smru_mr;
656 	/* RFC 4512 string representation */
657 	struct berval			smru_str;
658 
659 	LDAP_SLIST_ENTRY(MatchingRuleUse) smru_next;
660 
661 #define smru_oid			smru_mruleuse.mru_oid
662 #define smru_names			smru_mruleuse.mru_names
663 #define smru_desc			smru_mruleuse.mru_desc
664 #define smru_obsolete			smru_mruleuse.mru_obsolete
665 #define smru_applies_oids		smru_mruleuse.mru_applies_oids
666 
667 #define smru_usage			smru_mr->smr_usage
668 } /* MatchingRuleUse */ ;
669 
670 typedef struct slap_mrule_defs_rec {
671 	char *						mrd_desc;
672 	slap_mask_t					mrd_usage;
673 	char **						mrd_compat_syntaxes;
674 	slap_mr_convert_func *		mrd_convert;
675 	slap_mr_normalize_func *	mrd_normalize;
676 	slap_mr_match_func *		mrd_match;
677 	slap_mr_indexer_func *		mrd_indexer;
678 	slap_mr_filter_func *		mrd_filter;
679 
680 	/* For equality rule, this may refer to an associated approximate rule */
681 	/* For non-equality rule, this may refer to an associated equality rule */
682 	char *						mrd_associated;
683 } slap_mrule_defs_rec;
684 
685 typedef int (AttributeTypeSchemaCheckFN)(
686 	BackendDB *be,
687 	Entry *e,
688 	Attribute *attr,
689 	const char** text,
690 	char *textbuf, size_t textlen );
691 
692 struct AttributeType {
693 	LDAPAttributeType		sat_atype;
694 	struct berval			sat_cname;
695 	AttributeType			*sat_sup;
696 	AttributeType			**sat_subtypes;
697 	MatchingRule			*sat_equality;
698 	MatchingRule			*sat_approx;
699 	MatchingRule			*sat_ordering;
700 	MatchingRule			*sat_substr;
701 	Syntax				*sat_syntax;
702 
703 	AttributeTypeSchemaCheckFN	*sat_check;
704 	char				*sat_oidmacro;	/* attribute OID */
705 	char				*sat_soidmacro;	/* syntax OID */
706 
707 #define SLAP_AT_NONE			0x0000U
708 #define SLAP_AT_ABSTRACT		0x0100U /* cannot be instantiated */
709 #define SLAP_AT_FINAL			0x0200U /* cannot be subtyped */
710 #ifdef SLAP_SCHEMA_EXPOSE
711 #define SLAP_AT_HIDE			0x0000U /* publish everything */
712 #else
713 #define SLAP_AT_HIDE			0x8000U /* hide attribute */
714 #endif
715 #define	SLAP_AT_DYNAMIC			0x0400U	/* dynamically generated */
716 
717 #define SLAP_AT_MANAGEABLE		0x0800U	/* no-user-mod can be by-passed */
718 
719 /* Note: ORDERED values have an ordering specifically set by the
720  * user, denoted by the {x} ordering prefix on the values.
721  *
722  * SORTED values are simply sorted by memcmp. SORTED values can
723  * be efficiently located by binary search. ORDERED values have no
724  * such advantage. An attribute cannot have both properties.
725  */
726 #define	SLAP_AT_ORDERED_VAL		0x0001U /* values are ordered */
727 #define	SLAP_AT_ORDERED_SIB		0x0002U /* siblings are ordered */
728 #define	SLAP_AT_ORDERED			0x0003U /* value has order index */
729 
730 #define	SLAP_AT_SORTED_VAL		0x0010U	/* values should be sorted */
731 
732 #define	SLAP_AT_HARDCODE		0x10000U	/* hardcoded schema */
733 #define	SLAP_AT_DELETED			0x20000U
734 
735 	slap_mask_t			sat_flags;
736 
737 	LDAP_STAILQ_ENTRY(AttributeType) sat_next;
738 
739 #define sat_oid				sat_atype.at_oid
740 #define sat_names			sat_atype.at_names
741 #define sat_desc			sat_atype.at_desc
742 #define sat_obsolete			sat_atype.at_obsolete
743 #define sat_sup_oid			sat_atype.at_sup_oid
744 #define sat_equality_oid		sat_atype.at_equality_oid
745 #define sat_ordering_oid		sat_atype.at_ordering_oid
746 #define sat_substr_oid			sat_atype.at_substr_oid
747 #define sat_syntax_oid			sat_atype.at_syntax_oid
748 #define sat_single_value		sat_atype.at_single_value
749 #define sat_collective			sat_atype.at_collective
750 #define sat_no_user_mod			sat_atype.at_no_user_mod
751 #define sat_usage			sat_atype.at_usage
752 #define sat_extensions			sat_atype.at_extensions
753 
754 	AttributeDescription		*sat_ad;
755 	ldap_pvt_thread_mutex_t		sat_ad_mutex;
756 };
757 
758 #define is_at_operational(at)	((at)->sat_usage)
759 #define is_at_single_value(at)	((at)->sat_single_value)
760 #define is_at_collective(at)	((at)->sat_collective)
761 #define is_at_obsolete(at)		((at)->sat_obsolete)
762 #define is_at_no_user_mod(at)	((at)->sat_no_user_mod)
763 
764 typedef int (ObjectClassSchemaCheckFN)(
765 	BackendDB *be,
766 	Entry *e,
767 	ObjectClass *oc,
768 	const char** text,
769 	char *textbuf, size_t textlen );
770 
771 struct ObjectClass {
772 	LDAPObjectClass			soc_oclass;
773 	struct berval			soc_cname;
774 	ObjectClass			**soc_sups;
775 	AttributeType			**soc_required;
776 	AttributeType			**soc_allowed;
777 	ObjectClassSchemaCheckFN	*soc_check;
778 	char				*soc_oidmacro;
779 	slap_mask_t			soc_flags;
780 #define soc_oid				soc_oclass.oc_oid
781 #define soc_names			soc_oclass.oc_names
782 #define soc_desc			soc_oclass.oc_desc
783 #define soc_obsolete			soc_oclass.oc_obsolete
784 #define soc_sup_oids			soc_oclass.oc_sup_oids
785 #define soc_kind			soc_oclass.oc_kind
786 #define soc_at_oids_must		soc_oclass.oc_at_oids_must
787 #define soc_at_oids_may			soc_oclass.oc_at_oids_may
788 #define soc_extensions			soc_oclass.oc_extensions
789 
790 	LDAP_STAILQ_ENTRY(ObjectClass)	soc_next;
791 };
792 
793 #define	SLAP_OCF_SET_FLAGS	0x1
794 #define	SLAP_OCF_CHECK_SUP	0x2
795 #define	SLAP_OCF_MASK		(SLAP_OCF_SET_FLAGS|SLAP_OCF_CHECK_SUP)
796 
797 #define	SLAP_OC_ALIAS		0x0001
798 #define	SLAP_OC_REFERRAL	0x0002
799 #define	SLAP_OC_SUBENTRY	0x0004
800 #define	SLAP_OC_DYNAMICOBJECT	0x0008
801 #define	SLAP_OC_COLLECTIVEATTRIBUTESUBENTRY	0x0010
802 #define SLAP_OC_GLUE		0x0020
803 #define SLAP_OC_SYNCPROVIDERSUBENTRY		0x0040
804 #define SLAP_OC_SYNCCONSUMERSUBENTRY		0x0080
805 #define	SLAP_OC__MASK		0x00FF
806 #define	SLAP_OC__END		0x0100
807 #define SLAP_OC_OPERATIONAL	0x4000
808 #ifdef SLAP_SCHEMA_EXPOSE
809 #define SLAP_OC_HIDE		0x0000
810 #else
811 #define SLAP_OC_HIDE		0x8000
812 #endif
813 #define	SLAP_OC_HARDCODE	0x10000U	/* This is hardcoded schema */
814 #define	SLAP_OC_DELETED		0x20000U
815 
816 /*
817  * DIT content rule
818  */
819 struct ContentRule {
820 	LDAPContentRule		scr_crule;
821 	ObjectClass		*scr_sclass;
822 	ObjectClass		**scr_auxiliaries;	/* optional */
823 	AttributeType		**scr_required;		/* optional */
824 	AttributeType		**scr_allowed;		/* optional */
825 	AttributeType		**scr_precluded;	/* optional */
826 #define scr_oid			scr_crule.cr_oid
827 #define scr_names		scr_crule.cr_names
828 #define scr_desc		scr_crule.cr_desc
829 #define scr_obsolete		scr_crule.cr_obsolete
830 #define scr_oc_oids_aux		scr_crule.cr_oc_oids_aux
831 #define scr_at_oids_must	scr_crule.cr_at_oids_must
832 #define scr_at_oids_may		scr_crule.cr_at_oids_may
833 #define scr_at_oids_not		scr_crule.cr_at_oids_not
834 
835 	char			*scr_oidmacro;
836 #define	SLAP_CR_HARDCODE	0x10000U
837 	int			scr_flags;
838 
839 	LDAP_STAILQ_ENTRY( ContentRule ) scr_next;
840 };
841 
842 /* Represents a recognized attribute description ( type + options ). */
843 struct AttributeDescription {
844 	AttributeDescription	*ad_next;
845 	AttributeType		*ad_type;	/* attribute type, must be specified */
846 	struct berval		ad_cname;	/* canonical name, must be specified */
847 	struct berval		ad_tags;	/* empty if no tagging options */
848 	unsigned ad_flags;
849 #define SLAP_DESC_NONE		0x00U
850 #define SLAP_DESC_BINARY	0x01U
851 #define SLAP_DESC_TAG_RANGE	0x80U
852 #define SLAP_DESC_TEMPORARY	0x1000U
853 	unsigned ad_index;
854 };
855 
856 /* flags to slap_*2undef_ad to register undefined (0, the default)
857  * or proxied (SLAP_AD_PROXIED) AttributeDescriptions; the additional
858  * SLAP_AD_NOINSERT is to lookup without insert */
859 #define SLAP_AD_UNDEF		0x00U
860 #define SLAP_AD_PROXIED		0x01U
861 #define	SLAP_AD_NOINSERT	0x02U
862 
863 #define	SLAP_AN_OCEXCLUDE	0x01
864 #define	SLAP_AN_OCINITED	0x02
865 
866 struct AttributeName {
867 	struct berval		an_name;
868 	AttributeDescription	*an_desc;
869 	int			an_flags;
870 	ObjectClass		*an_oc;
871 };
872 
873 #define slap_ad_is_tagged(ad)			( (ad)->ad_tags.bv_len != 0 )
874 #define slap_ad_is_tag_range(ad)	\
875 	( ((ad)->ad_flags & SLAP_DESC_TAG_RANGE) ? 1 : 0 )
876 #define slap_ad_is_binary(ad)		\
877 	( ((ad)->ad_flags & SLAP_DESC_BINARY) ? 1 : 0 )
878 
879 /*
880  * pointers to schema elements used internally
881  */
882 struct slap_internal_schema {
883 	/* objectClass */
884 	ObjectClass *si_oc_top;
885 	ObjectClass *si_oc_extensibleObject;
886 	ObjectClass *si_oc_alias;
887 	ObjectClass *si_oc_referral;
888 	ObjectClass *si_oc_rootdse;
889 	ObjectClass *si_oc_subentry;
890 	ObjectClass *si_oc_subschema;
891 	ObjectClass *si_oc_collectiveAttributeSubentry;
892 	ObjectClass *si_oc_dynamicObject;
893 
894 	ObjectClass *si_oc_glue;
895 	ObjectClass *si_oc_syncConsumerSubentry;
896 	ObjectClass *si_oc_syncProviderSubentry;
897 
898 	/* objectClass attribute descriptions */
899 	AttributeDescription *si_ad_objectClass;
900 
901 	/* operational attribute descriptions */
902 	AttributeDescription *si_ad_structuralObjectClass;
903 	AttributeDescription *si_ad_creatorsName;
904 	AttributeDescription *si_ad_createTimestamp;
905 	AttributeDescription *si_ad_modifiersName;
906 	AttributeDescription *si_ad_modifyTimestamp;
907 	AttributeDescription *si_ad_hasSubordinates;
908 	AttributeDescription *si_ad_subschemaSubentry;
909 	AttributeDescription *si_ad_collectiveSubentries;
910 	AttributeDescription *si_ad_collectiveExclusions;
911 	AttributeDescription *si_ad_entryDN;
912 	AttributeDescription *si_ad_entryUUID;
913 	AttributeDescription *si_ad_entryCSN;
914 	AttributeDescription *si_ad_namingCSN;
915 
916 	AttributeDescription *si_ad_dseType;
917 	AttributeDescription *si_ad_syncreplCookie;
918 	AttributeDescription *si_ad_syncTimestamp;
919 	AttributeDescription *si_ad_contextCSN;
920 
921 	/* root DSE attribute descriptions */
922 	AttributeDescription *si_ad_altServer;
923 	AttributeDescription *si_ad_namingContexts;
924 	AttributeDescription *si_ad_supportedControl;
925 	AttributeDescription *si_ad_supportedExtension;
926 	AttributeDescription *si_ad_supportedLDAPVersion;
927 	AttributeDescription *si_ad_supportedSASLMechanisms;
928 	AttributeDescription *si_ad_supportedFeatures;
929 	AttributeDescription *si_ad_monitorContext;
930 	AttributeDescription *si_ad_vendorName;
931 	AttributeDescription *si_ad_vendorVersion;
932 	AttributeDescription *si_ad_configContext;
933 
934 	/* subentry attribute descriptions */
935 	AttributeDescription *si_ad_administrativeRole;
936 	AttributeDescription *si_ad_subtreeSpecification;
937 
938 	/* subschema subentry attribute descriptions */
939 	AttributeDescription *si_ad_attributeTypes;
940 	AttributeDescription *si_ad_ditContentRules;
941 	AttributeDescription *si_ad_ditStructureRules;
942 	AttributeDescription *si_ad_ldapSyntaxes;
943 	AttributeDescription *si_ad_matchingRules;
944 	AttributeDescription *si_ad_matchingRuleUse;
945 	AttributeDescription *si_ad_nameForms;
946 	AttributeDescription *si_ad_objectClasses;
947 
948 	/* Aliases & Referrals */
949 	AttributeDescription *si_ad_aliasedObjectName;
950 	AttributeDescription *si_ad_ref;
951 
952 	/* Access Control Internals */
953 	AttributeDescription *si_ad_entry;
954 	AttributeDescription *si_ad_children;
955 	AttributeDescription *si_ad_saslAuthzTo;
956 	AttributeDescription *si_ad_saslAuthzFrom;
957 
958 	/* dynamic entries */
959 	AttributeDescription *si_ad_entryTtl;
960 	AttributeDescription *si_ad_dynamicSubtrees;
961 
962 	/* Other attributes descriptions */
963 	AttributeDescription *si_ad_distinguishedName;
964 	AttributeDescription *si_ad_name;
965 	AttributeDescription *si_ad_cn;
966 	AttributeDescription *si_ad_uid;
967 	AttributeDescription *si_ad_uidNumber;
968 	AttributeDescription *si_ad_gidNumber;
969 	AttributeDescription *si_ad_userPassword;
970 	AttributeDescription *si_ad_labeledURI;
971 #ifdef SLAPD_AUTHPASSWD
972 	AttributeDescription *si_ad_authPassword;
973 	AttributeDescription *si_ad_authPasswordSchemes;
974 #endif
975 	AttributeDescription *si_ad_description;
976 	AttributeDescription *si_ad_seeAlso;
977 
978 	/* Undefined Attribute Type */
979 	AttributeType	*si_at_undefined;
980 
981 	/* "Proxied" Attribute Type */
982 	AttributeType	*si_at_proxied;
983 
984 	/* Matching Rules */
985 	MatchingRule	*si_mr_distinguishedNameMatch;
986 	MatchingRule	*si_mr_dnSubtreeMatch;
987 	MatchingRule	*si_mr_dnOneLevelMatch;
988 	MatchingRule	*si_mr_dnSubordinateMatch;
989 	MatchingRule	*si_mr_dnSuperiorMatch;
990 	MatchingRule    *si_mr_caseExactMatch;
991 	MatchingRule    *si_mr_caseExactSubstringsMatch;
992 	MatchingRule    *si_mr_caseExactIA5Match;
993 	MatchingRule	*si_mr_integerMatch;
994 	MatchingRule    *si_mr_integerFirstComponentMatch;
995 	MatchingRule    *si_mr_objectIdentifierFirstComponentMatch;
996 	MatchingRule    *si_mr_caseIgnoreMatch;
997 	MatchingRule    *si_mr_caseIgnoreListMatch;
998 
999 	/* Syntaxes */
1000 	Syntax		*si_syn_directoryString;
1001 	Syntax		*si_syn_distinguishedName;
1002 	Syntax		*si_syn_integer;
1003 	Syntax		*si_syn_octetString;
1004 
1005 	/* Schema Syntaxes */
1006 	Syntax		*si_syn_attributeTypeDesc;
1007 	Syntax		*si_syn_ditContentRuleDesc;
1008 	Syntax		*si_syn_ditStructureRuleDesc;
1009 	Syntax		*si_syn_ldapSyntaxDesc;
1010 	Syntax		*si_syn_matchingRuleDesc;
1011 	Syntax		*si_syn_matchingRuleUseDesc;
1012 	Syntax		*si_syn_nameFormDesc;
1013 	Syntax		*si_syn_objectClassDesc;
1014 };
1015 
1016 struct AttributeAssertion {
1017 	AttributeDescription	*aa_desc;
1018 	struct berval		aa_value;
1019 #ifdef LDAP_COMP_MATCH
1020 	ComponentFilter		*aa_cf;		/* for attribute aliasing */
1021 #endif
1022 };
1023 #ifdef LDAP_COMP_MATCH
1024 #define ATTRIBUTEASSERTION_INIT { NULL, BER_BVNULL, NULL }
1025 #else
1026 #define ATTRIBUTEASSERTION_INIT { NULL, BER_BVNULL }
1027 #endif
1028 
1029 struct SubstringsAssertion {
1030 	AttributeDescription	*sa_desc;
1031 	struct berval		sa_initial;
1032 	struct berval		*sa_any;
1033 	struct berval		sa_final;
1034 };
1035 
1036 struct MatchingRuleAssertion {
1037 	AttributeDescription	*ma_desc;	/* optional */
1038 	struct berval		ma_value;	/* required */
1039 	MatchingRule		*ma_rule;	/* optional */
1040 	struct berval		ma_rule_text;	/* optional */
1041 	int			ma_dnattrs;	/* boolean */
1042 #ifdef LDAP_COMP_MATCH
1043 	ComponentFilter		*ma_cf;	/* component filter */
1044 #endif
1045 };
1046 
1047 /*
1048  * represents a search filter
1049  */
1050 struct Filter {
1051 	ber_tag_t	f_choice;	/* values taken from ldap.h, plus: */
1052 #define SLAPD_FILTER_COMPUTED		0
1053 #define SLAPD_FILTER_MASK			0x7fff
1054 #define SLAPD_FILTER_UNDEFINED		0x8000
1055 
1056 	union f_un_u {
1057 		/* precomputed result */
1058 		ber_int_t		f_un_result;
1059 
1060 		/* present */
1061 		AttributeDescription	*f_un_desc;
1062 
1063 		/* simple value assertion */
1064 		AttributeAssertion	*f_un_ava;
1065 
1066 		/* substring assertion */
1067 		SubstringsAssertion	*f_un_ssa;
1068 
1069 		/* matching rule assertion */
1070 		MatchingRuleAssertion	*f_un_mra;
1071 
1072 #define f_desc			f_un.f_un_desc
1073 #define f_ava			f_un.f_un_ava
1074 #define f_av_desc		f_un.f_un_ava->aa_desc
1075 #define f_av_value		f_un.f_un_ava->aa_value
1076 #define f_sub			f_un.f_un_ssa
1077 #define f_sub_desc		f_un.f_un_ssa->sa_desc
1078 #define f_sub_initial		f_un.f_un_ssa->sa_initial
1079 #define f_sub_any		f_un.f_un_ssa->sa_any
1080 #define f_sub_final		f_un.f_un_ssa->sa_final
1081 #define f_mra			f_un.f_un_mra
1082 #define f_mr_rule		f_un.f_un_mra->ma_rule
1083 #define f_mr_rule_text		f_un.f_un_mra->ma_rule_text
1084 #define f_mr_desc		f_un.f_un_mra->ma_desc
1085 #define f_mr_value		f_un.f_un_mra->ma_value
1086 #define	f_mr_dnattrs		f_un.f_un_mra->ma_dnattrs
1087 
1088 		/* and, or, not */
1089 		Filter			*f_un_complex;
1090 	} f_un;
1091 
1092 #define f_result	f_un.f_un_result
1093 #define f_and		f_un.f_un_complex
1094 #define f_or		f_un.f_un_complex
1095 #define f_not		f_un.f_un_complex
1096 #define f_list		f_un.f_un_complex
1097 
1098 	Filter		*f_next;
1099 };
1100 
1101 /* compare routines can return undefined */
1102 #define SLAPD_COMPARE_UNDEFINED	((ber_int_t) -1)
1103 
1104 struct ValuesReturnFilter {
1105 	ber_tag_t	vrf_choice;
1106 
1107 	union vrf_un_u {
1108 		/* precomputed result */
1109 		ber_int_t vrf_un_result;
1110 
1111 		/* DN */
1112 		char *vrf_un_dn;
1113 
1114 		/* present */
1115 		AttributeDescription *vrf_un_desc;
1116 
1117 		/* simple value assertion */
1118 		AttributeAssertion *vrf_un_ava;
1119 
1120 		/* substring assertion */
1121 		SubstringsAssertion *vrf_un_ssa;
1122 
1123 		/* matching rule assertion */
1124 		MatchingRuleAssertion *vrf_un_mra;
1125 
1126 #define vrf_result		vrf_un.vrf_un_result
1127 #define vrf_dn			vrf_un.vrf_un_dn
1128 #define vrf_desc		vrf_un.vrf_un_desc
1129 #define vrf_ava			vrf_un.vrf_un_ava
1130 #define vrf_av_desc		vrf_un.vrf_un_ava->aa_desc
1131 #define vrf_av_value	vrf_un.vrf_un_ava->aa_value
1132 #define vrf_ssa			vrf_un.vrf_un_ssa
1133 #define vrf_sub			vrf_un.vrf_un_ssa
1134 #define vrf_sub_desc	vrf_un.vrf_un_ssa->sa_desc
1135 #define vrf_sub_initial	vrf_un.vrf_un_ssa->sa_initial
1136 #define vrf_sub_any		vrf_un.vrf_un_ssa->sa_any
1137 #define vrf_sub_final	vrf_un.vrf_un_ssa->sa_final
1138 #define vrf_mra			vrf_un.vrf_un_mra
1139 #define vrf_mr_rule		vrf_un.vrf_un_mra->ma_rule
1140 #define vrf_mr_rule_text	vrf_un.vrf_un_mra->ma_rule_text
1141 #define vrf_mr_desc		vrf_un.vrf_un_mra->ma_desc
1142 #define vrf_mr_value		vrf_un.vrf_un_mra->ma_value
1143 #define	vrf_mr_dnattrs	vrf_un.vrf_un_mra->ma_dnattrs
1144 
1145 
1146 	} vrf_un;
1147 
1148 	ValuesReturnFilter	*vrf_next;
1149 };
1150 
1151 /*
1152  * represents an attribute (description + values)
1153  * desc, vals, nvals, numvals fields must align with Modification
1154  */
1155 struct Attribute {
1156 	AttributeDescription	*a_desc;
1157 	BerVarray		a_vals;		/* preserved values */
1158 	BerVarray		a_nvals;	/* normalized values */
1159 	unsigned		a_numvals;	/* number of vals */
1160 	unsigned		a_flags;
1161 #define SLAP_ATTR_IXADD			0x1U
1162 #define SLAP_ATTR_IXDEL			0x2U
1163 #define SLAP_ATTR_DONT_FREE_DATA	0x4U
1164 #define SLAP_ATTR_DONT_FREE_VALS	0x8U
1165 #define	SLAP_ATTR_SORTED_VALS		0x10U	/* values are sorted */
1166 
1167 /* These flags persist across an attr_dup() */
1168 #define	SLAP_ATTR_PERSISTENT_FLAGS \
1169 	SLAP_ATTR_SORTED_VALS
1170 
1171 	Attribute		*a_next;
1172 #ifdef LDAP_COMP_MATCH
1173 	ComponentData		*a_comp_data;	/* component values */
1174 #endif
1175 };
1176 
1177 
1178 /*
1179  * the id used in the indexes to refer to an entry
1180  */
1181 typedef unsigned long	ID;
1182 #define NOID	((ID)~0)
1183 
1184 typedef struct EntryHeader {
1185 	struct berval bv;
1186 	char *data;
1187 	int nattrs;
1188 	int nvals;
1189 } EntryHeader;
1190 
1191 /*
1192  * represents an entry in core
1193  */
1194 struct Entry {
1195 	/*
1196 	 * The ID field should only be changed before entry is
1197 	 * inserted into a cache.  The ID value is backend
1198 	 * specific.
1199 	 */
1200 	ID		e_id;
1201 
1202 	struct berval e_name;	/* name (DN) of this entry */
1203 	struct berval e_nname;	/* normalized name (DN) of this entry */
1204 
1205 	/* for migration purposes */
1206 #define e_dn e_name.bv_val
1207 #define e_ndn e_nname.bv_val
1208 
1209 	Attribute	*e_attrs;	/* list of attributes + values */
1210 
1211 	slap_mask_t	e_ocflags;
1212 
1213 	struct berval	e_bv;		/* For entry_encode/entry_decode */
1214 
1215 	/* for use by the backend for any purpose */
1216 	void*	e_private;
1217 };
1218 
1219 /*
1220  * A list of LDAPMods
1221  * desc, values, nvalues, numvals must align with Attribute
1222  */
1223 struct Modification {
1224 	AttributeDescription *sm_desc;
1225 	BerVarray sm_values;
1226 	BerVarray sm_nvalues;
1227 	unsigned sm_numvals;
1228 	short sm_op;
1229 	short sm_flags;
1230 /* Set for internal mods, will bypass ACL checks. Only needed when
1231  * running as non-root user, for user modifiable attributes.
1232  */
1233 #define	SLAP_MOD_INTERNAL	0x01
1234 #define	SLAP_MOD_MANAGING	0x02
1235 	struct berval sm_type;
1236 };
1237 
1238 struct Modifications {
1239 	Modification	sml_mod;
1240 #define sml_op		sml_mod.sm_op
1241 #define sml_flags	sml_mod.sm_flags
1242 #define sml_desc	sml_mod.sm_desc
1243 #define	sml_type	sml_mod.sm_type
1244 #define sml_values	sml_mod.sm_values
1245 #define sml_nvalues	sml_mod.sm_nvalues
1246 #define sml_numvals	sml_mod.sm_numvals
1247 	Modifications	*sml_next;
1248 };
1249 
1250 /*
1251  * represents an access control list
1252  */
1253 typedef enum slap_access_t {
1254 	ACL_INVALID_ACCESS = -1,
1255 	ACL_NONE = 0,
1256 	ACL_DISCLOSE,
1257 	ACL_AUTH,
1258 	ACL_COMPARE,
1259 	ACL_SEARCH,
1260 	ACL_READ,
1261 	ACL_WRITE_,
1262 	ACL_MANAGE,
1263 
1264 	/* always leave at end of levels but not greater than ACL_LEVEL_MASK */
1265 	ACL_LAST,
1266 
1267 	/* ACL level mask and modifiers */
1268 	ACL_LEVEL_MASK = 0x000f,
1269 	ACL_QUALIFIER1 = 0x0100,
1270 	ACL_QUALIFIER2 = 0x0200,
1271 	ACL_QUALIFIER3 = 0x0400,
1272 	ACL_QUALIFIER4 = 0x0800,
1273 	ACL_QUALIFIER_MASK = 0x0f00,
1274 
1275 	/* write granularity */
1276 	ACL_WADD = ACL_WRITE_|ACL_QUALIFIER1,
1277 	ACL_WDEL = ACL_WRITE_|ACL_QUALIFIER2,
1278 
1279 	ACL_WRITE = ACL_WADD|ACL_WDEL
1280 } slap_access_t;
1281 
1282 typedef enum slap_control_e {
1283 	ACL_INVALID_CONTROL	= 0,
1284 	ACL_STOP,
1285 	ACL_CONTINUE,
1286 	ACL_BREAK
1287 } slap_control_t;
1288 
1289 typedef enum slap_style_e {
1290 	ACL_STYLE_REGEX = 0,
1291 	ACL_STYLE_EXPAND,
1292 	ACL_STYLE_BASE,
1293 	ACL_STYLE_ONE,
1294 	ACL_STYLE_SUBTREE,
1295 	ACL_STYLE_CHILDREN,
1296 	ACL_STYLE_LEVEL,
1297 	ACL_STYLE_ATTROF,
1298 	ACL_STYLE_ANONYMOUS,
1299 	ACL_STYLE_USERS,
1300 	ACL_STYLE_SELF,
1301 	ACL_STYLE_IP,
1302 	ACL_STYLE_IPV6,
1303 	ACL_STYLE_PATH,
1304 
1305 	ACL_STYLE_NONE
1306 } slap_style_t;
1307 
1308 typedef struct AuthorizationInformation {
1309 	ber_tag_t	sai_method;			/* LDAP_AUTH_* from <ldap.h> */
1310 	struct berval	sai_mech;		/* SASL Mechanism */
1311 	struct berval	sai_dn;			/* DN for reporting purposes */
1312 	struct berval	sai_ndn;		/* Normalized DN */
1313 
1314 	/* Security Strength Factors */
1315 	slap_ssf_t	sai_ssf;			/* Overall SSF */
1316 	slap_ssf_t	sai_transport_ssf;	/* Transport SSF */
1317 	slap_ssf_t	sai_tls_ssf;		/* TLS SSF */
1318 	slap_ssf_t	sai_sasl_ssf;		/* SASL SSF */
1319 } AuthorizationInformation;
1320 
1321 #ifdef SLAP_DYNACL
1322 
1323 /*
1324  * "dynamic" ACL infrastructure (for ACIs and more)
1325  */
1326 typedef int (slap_dynacl_parse) LDAP_P(( const char *fname, int lineno,
1327 	const char *opts, slap_style_t, const char *, void **privp ));
1328 typedef int (slap_dynacl_unparse) LDAP_P(( void *priv, struct berval *bv ));
1329 typedef int (slap_dynacl_mask) LDAP_P((
1330 		void			*priv,
1331 		Operation		*op,
1332 		Entry			*e,
1333 		AttributeDescription	*desc,
1334 		struct berval		*val,
1335 		int			nmatch,
1336 		regmatch_t		*matches,
1337 		slap_access_t		*grant,
1338 		slap_access_t		*deny ));
1339 typedef int (slap_dynacl_destroy) LDAP_P(( void *priv ));
1340 
1341 typedef struct slap_dynacl_t {
1342 	char			*da_name;
1343 	slap_dynacl_parse	*da_parse;
1344 	slap_dynacl_unparse	*da_unparse;
1345 	slap_dynacl_mask	*da_mask;
1346 	slap_dynacl_destroy	*da_destroy;
1347 
1348 	void			*da_private;
1349 	struct slap_dynacl_t	*da_next;
1350 } slap_dynacl_t;
1351 #endif /* SLAP_DYNACL */
1352 
1353 /* the DN portion of the "by" part */
1354 typedef struct slap_dn_access {
1355 	/* DN pattern */
1356 	AuthorizationInformation	a_dnauthz;
1357 #define	a_pat			a_dnauthz.sai_dn
1358 
1359 	slap_style_t		a_style;
1360 	int			a_level;
1361 	int			a_self_level;
1362 	AttributeDescription	*a_at;
1363 	int			a_self;
1364 	int 			a_expand;
1365 } slap_dn_access;
1366 
1367 /* the "by" part */
1368 typedef struct Access {
1369 	slap_control_t a_type;
1370 
1371 /* strip qualifiers */
1372 #define ACL_LEVEL(p)			((p) & ACL_LEVEL_MASK)
1373 #define ACL_QUALIFIERS(p)		((p) & ~ACL_LEVEL_MASK)
1374 
1375 #define ACL_ACCESS2PRIV(access)		((0x01U << ACL_LEVEL((access))) | ACL_QUALIFIERS((access)))
1376 
1377 #define ACL_PRIV_NONE			ACL_ACCESS2PRIV( ACL_NONE )
1378 #define ACL_PRIV_DISCLOSE		ACL_ACCESS2PRIV( ACL_DISCLOSE )
1379 #define ACL_PRIV_AUTH			ACL_ACCESS2PRIV( ACL_AUTH )
1380 #define ACL_PRIV_COMPARE		ACL_ACCESS2PRIV( ACL_COMPARE )
1381 #define ACL_PRIV_SEARCH			ACL_ACCESS2PRIV( ACL_SEARCH )
1382 #define ACL_PRIV_READ			ACL_ACCESS2PRIV( ACL_READ )
1383 #define ACL_PRIV_WADD			ACL_ACCESS2PRIV( ACL_WADD )
1384 #define ACL_PRIV_WDEL			ACL_ACCESS2PRIV( ACL_WDEL )
1385 #define ACL_PRIV_WRITE			( ACL_PRIV_WADD | ACL_PRIV_WDEL )
1386 #define ACL_PRIV_MANAGE			ACL_ACCESS2PRIV( ACL_MANAGE )
1387 
1388 /* NOTE: always use the highest level; current: 0x00ffUL */
1389 #define ACL_PRIV_MASK			((ACL_ACCESS2PRIV(ACL_LAST) - 1) | ACL_QUALIFIER_MASK)
1390 
1391 /* priv flags */
1392 #define ACL_PRIV_LEVEL			0x1000UL
1393 #define ACL_PRIV_ADDITIVE		0x2000UL
1394 #define ACL_PRIV_SUBSTRACTIVE		0x4000UL
1395 
1396 /* invalid privs */
1397 #define ACL_PRIV_INVALID		0x0UL
1398 
1399 #define ACL_PRIV_ISSET(m,p)		(((m) & (p)) == (p))
1400 #define ACL_PRIV_ASSIGN(m,p)		do { (m)  =  (p); } while(0)
1401 #define ACL_PRIV_SET(m,p)		do { (m) |=  (p); } while(0)
1402 #define ACL_PRIV_CLR(m,p)		do { (m) &= ~(p); } while(0)
1403 
1404 #define ACL_INIT(m)			ACL_PRIV_ASSIGN((m), ACL_PRIV_NONE)
1405 #define ACL_INVALIDATE(m)		ACL_PRIV_ASSIGN((m), ACL_PRIV_INVALID)
1406 
1407 #define ACL_GRANT(m,a)			ACL_PRIV_ISSET((m),ACL_ACCESS2PRIV(a))
1408 
1409 #define ACL_IS_INVALID(m)		((m) == ACL_PRIV_INVALID)
1410 
1411 #define ACL_IS_LEVEL(m)			ACL_PRIV_ISSET((m),ACL_PRIV_LEVEL)
1412 #define ACL_IS_ADDITIVE(m)		ACL_PRIV_ISSET((m),ACL_PRIV_ADDITIVE)
1413 #define ACL_IS_SUBTRACTIVE(m)		ACL_PRIV_ISSET((m),ACL_PRIV_SUBSTRACTIVE)
1414 
1415 #define ACL_LVL_NONE			(ACL_PRIV_NONE|ACL_PRIV_LEVEL)
1416 #define ACL_LVL_DISCLOSE		(ACL_PRIV_DISCLOSE|ACL_LVL_NONE)
1417 #define ACL_LVL_AUTH			(ACL_PRIV_AUTH|ACL_LVL_DISCLOSE)
1418 #define ACL_LVL_COMPARE			(ACL_PRIV_COMPARE|ACL_LVL_AUTH)
1419 #define ACL_LVL_SEARCH			(ACL_PRIV_SEARCH|ACL_LVL_COMPARE)
1420 #define ACL_LVL_READ			(ACL_PRIV_READ|ACL_LVL_SEARCH)
1421 #define ACL_LVL_WADD			(ACL_PRIV_WADD|ACL_LVL_READ)
1422 #define ACL_LVL_WDEL			(ACL_PRIV_WDEL|ACL_LVL_READ)
1423 #define ACL_LVL_WRITE			(ACL_PRIV_WRITE|ACL_LVL_READ)
1424 #define ACL_LVL_MANAGE			(ACL_PRIV_MANAGE|ACL_LVL_WRITE)
1425 
1426 #define ACL_LVL(m,l)			(((m)&ACL_PRIV_MASK) == ((l)&ACL_PRIV_MASK))
1427 #define ACL_LVL_IS_NONE(m)		ACL_LVL((m),ACL_LVL_NONE)
1428 #define ACL_LVL_IS_DISCLOSE(m)		ACL_LVL((m),ACL_LVL_DISCLOSE)
1429 #define ACL_LVL_IS_AUTH(m)		ACL_LVL((m),ACL_LVL_AUTH)
1430 #define ACL_LVL_IS_COMPARE(m)		ACL_LVL((m),ACL_LVL_COMPARE)
1431 #define ACL_LVL_IS_SEARCH(m)		ACL_LVL((m),ACL_LVL_SEARCH)
1432 #define ACL_LVL_IS_READ(m)		ACL_LVL((m),ACL_LVL_READ)
1433 #define ACL_LVL_IS_WADD(m)		ACL_LVL((m),ACL_LVL_WADD)
1434 #define ACL_LVL_IS_WDEL(m)		ACL_LVL((m),ACL_LVL_WDEL)
1435 #define ACL_LVL_IS_WRITE(m)		ACL_LVL((m),ACL_LVL_WRITE)
1436 #define ACL_LVL_IS_MANAGE(m)		ACL_LVL((m),ACL_LVL_MANAGE)
1437 
1438 #define ACL_LVL_ASSIGN_NONE(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_NONE)
1439 #define ACL_LVL_ASSIGN_DISCLOSE(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_DISCLOSE)
1440 #define ACL_LVL_ASSIGN_AUTH(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_AUTH)
1441 #define ACL_LVL_ASSIGN_COMPARE(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_COMPARE)
1442 #define ACL_LVL_ASSIGN_SEARCH(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_SEARCH)
1443 #define ACL_LVL_ASSIGN_READ(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_READ)
1444 #define ACL_LVL_ASSIGN_WADD(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_WADD)
1445 #define ACL_LVL_ASSIGN_WDEL(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_WDEL)
1446 #define ACL_LVL_ASSIGN_WRITE(m)		ACL_PRIV_ASSIGN((m),ACL_LVL_WRITE)
1447 #define ACL_LVL_ASSIGN_MANAGE(m)	ACL_PRIV_ASSIGN((m),ACL_LVL_MANAGE)
1448 
1449 	slap_mask_t	a_access_mask;
1450 
1451 	/* DN pattern */
1452 	slap_dn_access		a_dn;
1453 #define a_dn_pat		a_dn.a_dnauthz.sai_dn
1454 #define	a_dn_at			a_dn.a_at
1455 #define	a_dn_self		a_dn.a_self
1456 
1457 	/* real DN pattern */
1458 	slap_dn_access		a_realdn;
1459 #define a_realdn_pat		a_realdn.a_dnauthz.sai_dn
1460 #define	a_realdn_at		a_realdn.a_at
1461 #define	a_realdn_self		a_realdn.a_self
1462 
1463 	/* used for ssf stuff
1464 	 * NOTE: the ssf stuff in a_realdn is ignored */
1465 #define	a_authz			a_dn.a_dnauthz
1466 
1467 	/* connection related stuff */
1468 	slap_style_t a_peername_style;
1469 	struct berval	a_peername_pat;
1470 #ifdef LDAP_PF_INET6
1471 	union {
1472 		struct in6_addr	ax6;
1473 		unsigned long	ax;
1474 	}	ax_peername_addr,
1475 		ax_peername_mask;
1476 #define	a_peername_addr6	ax_peername_addr.ax6
1477 #define	a_peername_addr		ax_peername_addr.ax
1478 #define	a_peername_mask6	ax_peername_mask.ax6
1479 #define	a_peername_mask		ax_peername_mask.ax
1480 /* apparently, only s6_addr is portable;
1481  * define a portable address mask comparison */
1482 #define	slap_addr6_mask(val, msk, asr) ( \
1483 	(((val)->s6_addr[0] & (msk)->s6_addr[0]) == (asr)->s6_addr[0]) \
1484 	&& (((val)->s6_addr[1] & (msk)->s6_addr[1]) == (asr)->s6_addr[1]) \
1485 	&& (((val)->s6_addr[2] & (msk)->s6_addr[2]) == (asr)->s6_addr[2]) \
1486 	&& (((val)->s6_addr[3] & (msk)->s6_addr[3]) == (asr)->s6_addr[3]) \
1487 	&& (((val)->s6_addr[4] & (msk)->s6_addr[4]) == (asr)->s6_addr[4]) \
1488 	&& (((val)->s6_addr[5] & (msk)->s6_addr[5]) == (asr)->s6_addr[5]) \
1489 	&& (((val)->s6_addr[6] & (msk)->s6_addr[6]) == (asr)->s6_addr[6]) \
1490 	&& (((val)->s6_addr[7] & (msk)->s6_addr[7]) == (asr)->s6_addr[7]) \
1491 	&& (((val)->s6_addr[8] & (msk)->s6_addr[8]) == (asr)->s6_addr[8]) \
1492 	&& (((val)->s6_addr[9] & (msk)->s6_addr[9]) == (asr)->s6_addr[9]) \
1493 	&& (((val)->s6_addr[10] & (msk)->s6_addr[10]) == (asr)->s6_addr[10]) \
1494 	&& (((val)->s6_addr[11] & (msk)->s6_addr[11]) == (asr)->s6_addr[11]) \
1495 	&& (((val)->s6_addr[12] & (msk)->s6_addr[12]) == (asr)->s6_addr[12]) \
1496 	&& (((val)->s6_addr[13] & (msk)->s6_addr[13]) == (asr)->s6_addr[13]) \
1497 	&& (((val)->s6_addr[14] & (msk)->s6_addr[14]) == (asr)->s6_addr[14]) \
1498 	&& (((val)->s6_addr[15] & (msk)->s6_addr[15]) == (asr)->s6_addr[15]) \
1499 	)
1500 #else /* ! LDAP_PF_INET6 */
1501 	unsigned long	a_peername_addr,
1502 			a_peername_mask;
1503 #endif /* ! LDAP_PF_INET6 */
1504 	int		a_peername_port;
1505 
1506 	slap_style_t a_sockname_style;
1507 	struct berval	a_sockname_pat;
1508 
1509 	slap_style_t a_domain_style;
1510 	struct berval	a_domain_pat;
1511 	int		a_domain_expand;
1512 
1513 	slap_style_t a_sockurl_style;
1514 	struct berval	a_sockurl_pat;
1515 	slap_style_t a_set_style;
1516 	struct berval	a_set_pat;
1517 
1518 #ifdef SLAP_DYNACL
1519 	slap_dynacl_t		*a_dynacl;
1520 #endif /* SLAP_DYNACL */
1521 
1522 	/* ACL Groups */
1523 	slap_style_t a_group_style;
1524 	struct berval	a_group_pat;
1525 	ObjectClass		*a_group_oc;
1526 	AttributeDescription	*a_group_at;
1527 
1528 	struct Access		*a_next;
1529 } Access;
1530 
1531 /* the "to" part */
1532 typedef struct AccessControl {
1533 	/* "to" part: the entries this acl applies to */
1534 	Filter		*acl_filter;
1535 	slap_style_t acl_dn_style;
1536 	regex_t		acl_dn_re;
1537 	struct berval	acl_dn_pat;
1538 	AttributeName	*acl_attrs;
1539 	MatchingRule	*acl_attrval_mr;
1540 	slap_style_t	acl_attrval_style;
1541 	regex_t		acl_attrval_re;
1542 	struct berval	acl_attrval;
1543 
1544 	/* "by" part: list of who has what access to the entries */
1545 	Access	*acl_access;
1546 
1547 	struct AccessControl	*acl_next;
1548 } AccessControl;
1549 
1550 typedef struct AccessControlState {
1551 	/* Access state */
1552 
1553 	/* The stored state is valid when requesting as_access access
1554 	 * to the as_desc attributes.	 */
1555 	AttributeDescription *as_desc;
1556 	slap_access_t	as_access;
1557 
1558 	/* Value dependent acl where processing can restart */
1559 	AccessControl  *as_vd_acl;
1560 	int as_vd_acl_present;
1561 	int as_vd_acl_count;
1562 	slap_mask_t		as_vd_mask;
1563 
1564 	/* The cached result after evaluating a value independent attr.
1565 	 * Only valid when != -1 and as_vd_acl == NULL */
1566 	int as_result;
1567 
1568 	/* True if started to process frontend ACLs */
1569 	int as_fe_done;
1570 } AccessControlState;
1571 #define ACL_STATE_INIT { NULL, ACL_NONE, NULL, 0, 0, ACL_PRIV_NONE, -1, 0 }
1572 
1573 typedef struct AclRegexMatches {
1574 	int dn_count;
1575         regmatch_t dn_data[MAXREMATCHES];
1576 	int val_count;
1577         regmatch_t val_data[MAXREMATCHES];
1578 } AclRegexMatches;
1579 
1580 /*
1581  * Backend-info
1582  * represents a backend
1583  */
1584 
1585 typedef LDAP_STAILQ_HEAD(BeI, BackendInfo) slap_bi_head;
1586 typedef LDAP_STAILQ_HEAD(BeDB, BackendDB) slap_be_head;
1587 
1588 LDAP_SLAPD_V (int) nBackendInfo;
1589 LDAP_SLAPD_V (int) nBackendDB;
1590 LDAP_SLAPD_V (slap_bi_head) backendInfo;
1591 LDAP_SLAPD_V (slap_be_head) backendDB;
1592 LDAP_SLAPD_V (BackendDB *) frontendDB;
1593 
1594 LDAP_SLAPD_V (int) slapMode;
1595 #define SLAP_UNDEFINED_MODE	0x0000
1596 #define SLAP_SERVER_MODE	0x0001
1597 #define SLAP_TOOL_MODE		0x0002
1598 #define SLAP_MODE			0x0003
1599 
1600 #define SLAP_TRUNCATE_MODE	0x0100
1601 #define	SLAP_TOOL_READMAIN	0x0200
1602 #define	SLAP_TOOL_READONLY	0x0400
1603 #define	SLAP_TOOL_QUICK		0x0800
1604 #define SLAP_TOOL_NO_SCHEMA_CHECK	0x1000
1605 #define SLAP_TOOL_VALUE_CHECK	0x2000
1606 
1607 #define SLAP_SERVER_RUNNING	0x8000
1608 
1609 #define SB_TLS_DEFAULT		(-1)
1610 #define SB_TLS_OFF		0
1611 #define SB_TLS_ON		1
1612 #define SB_TLS_CRITICAL		2
1613 
1614 typedef struct slap_keepalive {
1615 	int sk_idle;
1616 	int sk_probes;
1617 	int sk_interval;
1618 } slap_keepalive;
1619 
1620 typedef struct slap_bindconf {
1621 	struct berval sb_uri;
1622 	int sb_version;
1623 	int sb_tls;
1624 	int sb_method;
1625 	int sb_timeout_api;
1626 	int sb_timeout_net;
1627 	struct berval sb_binddn;
1628 	struct berval sb_cred;
1629 	struct berval sb_saslmech;
1630 	char *sb_secprops;
1631 	struct berval sb_realm;
1632 	struct berval sb_authcId;
1633 	struct berval sb_authzId;
1634 	slap_keepalive sb_keepalive;
1635 #ifdef HAVE_TLS
1636 	void *sb_tls_ctx;
1637 	char *sb_tls_cert;
1638 	char *sb_tls_key;
1639 	char *sb_tls_cacert;
1640 	char *sb_tls_cacertdir;
1641 	char *sb_tls_reqcert;
1642 	char *sb_tls_reqsan;
1643 	char *sb_tls_cipher_suite;
1644 	char *sb_tls_protocol_min;
1645 	char *sb_tls_ecname;
1646 #ifdef HAVE_OPENSSL_CRL
1647 	char *sb_tls_crlcheck;
1648 #endif
1649 	int sb_tls_do_init;
1650 #endif
1651 } slap_bindconf;
1652 
1653 typedef struct slap_verbmasks {
1654 	struct berval word;
1655 	const slap_mask_t mask;
1656 } slap_verbmasks;
1657 
1658 typedef struct slap_cf_aux_table {
1659 	struct berval key;
1660 	int off;
1661 	char type;
1662 	char quote;
1663 	void *aux;
1664 } slap_cf_aux_table;
1665 
1666 typedef int
1667 slap_cf_aux_table_parse_x LDAP_P((
1668 	struct berval *val,
1669 	void *bc,
1670 	slap_cf_aux_table *tab0,
1671 	const char *tabmsg,
1672 	int unparse ));
1673 
1674 #define SLAP_LIMIT_TIME	1
1675 #define SLAP_LIMIT_SIZE	2
1676 
1677 struct slap_limits_set {
1678 	/* time limits */
1679 	int	lms_t_soft;
1680 	int	lms_t_hard;
1681 
1682 	/* size limits */
1683 	int	lms_s_soft;
1684 	int	lms_s_hard;
1685 	int	lms_s_unchecked;
1686 	int	lms_s_pr;
1687 	int	lms_s_pr_hide;
1688 	int	lms_s_pr_total;
1689 };
1690 
1691 /* Note: this is different from LDAP_NO_LIMIT (0); slapd internal use only */
1692 #define SLAP_NO_LIMIT			-1
1693 #define SLAP_MAX_LIMIT			2147483647
1694 
1695 struct slap_limits {
1696 	unsigned		lm_flags;	/* type of pattern */
1697 	/* Values must match lmpats[] in limits.c */
1698 #define SLAP_LIMITS_UNDEFINED		0x0000U
1699 #define SLAP_LIMITS_EXACT		0x0001U
1700 #define SLAP_LIMITS_BASE		SLAP_LIMITS_EXACT
1701 #define SLAP_LIMITS_ONE			0x0002U
1702 #define SLAP_LIMITS_SUBTREE		0x0003U
1703 #define SLAP_LIMITS_CHILDREN		0x0004U
1704 #define SLAP_LIMITS_REGEX		0x0005U
1705 #define SLAP_LIMITS_ANONYMOUS		0x0006U
1706 #define SLAP_LIMITS_USERS		0x0007U
1707 #define SLAP_LIMITS_ANY			0x0008U
1708 #define SLAP_LIMITS_MASK		0x000FU
1709 
1710 #define SLAP_LIMITS_TYPE_SELF		0x0000U
1711 #define SLAP_LIMITS_TYPE_DN		SLAP_LIMITS_TYPE_SELF
1712 #define SLAP_LIMITS_TYPE_GROUP		0x0010U
1713 #define SLAP_LIMITS_TYPE_THIS		0x0020U
1714 #define SLAP_LIMITS_TYPE_MASK		0x00F0U
1715 
1716 	regex_t			lm_regex;	/* regex data for REGEX */
1717 
1718 	/*
1719 	 * normalized DN for EXACT, BASE, ONE, SUBTREE, CHILDREN;
1720 	 * pattern for REGEX; NULL for ANONYMOUS, USERS
1721 	 */
1722 	struct berval		lm_pat;
1723 
1724 	/* if lm_flags & SLAP_LIMITS_TYPE_MASK == SLAP_LIMITS_GROUP,
1725 	 * lm_group_oc is objectClass and lm_group_at is attributeType
1726 	 * of member in oc for match; then lm_flags & SLAP_LIMITS_MASK
1727 	 * can only be SLAP_LIMITS_EXACT */
1728 	ObjectClass		*lm_group_oc;
1729 	AttributeDescription	*lm_group_ad;
1730 
1731 	struct slap_limits_set	lm_limits;
1732 };
1733 
1734 /* temporary aliases */
1735 typedef BackendDB Backend;
1736 #define nbackends nBackendDB
1737 #define backends backendDB
1738 
1739 /*
1740  * syncinfo structure for syncrepl
1741  */
1742 
1743 struct syncinfo_s;
1744 
1745 #define SLAP_SYNC_RID_MAX	999
1746 #define SLAP_SYNC_SID_MAX	4095	/* based on liblutil/csn.c field width */
1747 
1748 /* fake conn connid constructed as rid; real connids start
1749  * at SLAPD_SYNC_CONN_OFFSET */
1750 #define SLAPD_SYNC_SYNCCONN_OFFSET (SLAP_SYNC_RID_MAX + 1)
1751 #define SLAPD_SYNC_IS_SYNCCONN(connid) ((connid) < SLAPD_SYNC_SYNCCONN_OFFSET)
1752 #define SLAPD_SYNC_RID2SYNCCONN(rid) (rid)
1753 
1754 #define SLAP_SYNCUUID_SET_SIZE 256
1755 
1756 struct sync_cookie {
1757 	BerVarray ctxcsn;
1758 	int *sids;
1759 	int numcsns;
1760 	int rid;
1761 	struct berval octet_str;
1762 	int sid;
1763 	LDAP_STAILQ_ENTRY(sync_cookie) sc_next;
1764 };
1765 
1766 LDAP_STAILQ_HEAD( slap_sync_cookie_s, sync_cookie );
1767 
1768 LDAP_TAILQ_HEAD( be_pcl, slap_csn_entry );
1769 
1770 #ifndef SLAP_MAX_CIDS
1771 #define	SLAP_MAX_CIDS	32	/* Maximum number of supported controls */
1772 #endif
1773 
1774 struct ConfigOCs;	/* config.h */
1775 
1776 struct BackendDB {
1777 	BackendInfo	*bd_info;	/* pointer to shared backend info */
1778 	BackendDB	*bd_self;	/* pointer to this struct */
1779 
1780 	/* fields in this structure (and routines acting on this structure)
1781 	   should be renamed from be_ to bd_ */
1782 
1783 	/* BackendInfo accessors */
1784 #define		be_config	bd_info->bi_db_config
1785 #define		be_type		bd_info->bi_type
1786 
1787 #define		be_bind		bd_info->bi_op_bind
1788 #define		be_unbind	bd_info->bi_op_unbind
1789 #define		be_add		bd_info->bi_op_add
1790 #define		be_compare	bd_info->bi_op_compare
1791 #define		be_delete	bd_info->bi_op_delete
1792 #define		be_modify	bd_info->bi_op_modify
1793 #define		be_modrdn	bd_info->bi_op_modrdn
1794 #define		be_search	bd_info->bi_op_search
1795 #define		be_abandon	bd_info->bi_op_abandon
1796 
1797 #define		be_extended	bd_info->bi_extended
1798 #define		be_cancel	bd_info->bi_op_cancel
1799 
1800 #define		be_chk_referrals	bd_info->bi_chk_referrals
1801 #define		be_chk_controls		bd_info->bi_chk_controls
1802 #define		be_fetch	bd_info->bi_entry_get_rw
1803 #define		be_release	bd_info->bi_entry_release_rw
1804 #define		be_group	bd_info->bi_acl_group
1805 #define		be_attribute	bd_info->bi_acl_attribute
1806 #define		be_operational	bd_info->bi_operational
1807 
1808 /*
1809  * define to honor hasSubordinates operational attribute in search filters
1810  * (in previous use there was a flaw with back-bdb; now it is fixed).
1811  */
1812 #define		be_has_subordinates bd_info->bi_has_subordinates
1813 
1814 #define		be_connection_init	bd_info->bi_connection_init
1815 #define		be_connection_destroy	bd_info->bi_connection_destroy
1816 
1817 #ifdef SLAPD_TOOLS
1818 #define		be_entry_open bd_info->bi_tool_entry_open
1819 #define		be_entry_close bd_info->bi_tool_entry_close
1820 #define		be_entry_first bd_info->bi_tool_entry_first
1821 #define		be_entry_first_x bd_info->bi_tool_entry_first_x
1822 #define		be_entry_next bd_info->bi_tool_entry_next
1823 #define		be_entry_reindex bd_info->bi_tool_entry_reindex
1824 #define		be_entry_get bd_info->bi_tool_entry_get
1825 #define		be_entry_put bd_info->bi_tool_entry_put
1826 #define		be_sync bd_info->bi_tool_sync
1827 #define		be_dn2id_get bd_info->bi_tool_dn2id_get
1828 #define		be_entry_modify	bd_info->bi_tool_entry_modify
1829 #endif
1830 
1831 	/* supported controls */
1832 	/* note: set to 0 if the database does not support the control;
1833 	 * be_ctrls[SLAP_MAX_CIDS] is set to 1 if initialized */
1834 	char		be_ctrls[SLAP_MAX_CIDS + 1];
1835 
1836 /* Database flags */
1837 #define SLAP_DBFLAG_NOLASTMOD		0x0001U
1838 #define SLAP_DBFLAG_NO_SCHEMA_CHECK	0x0002U
1839 #define	SLAP_DBFLAG_HIDDEN		0x0004U
1840 #define	SLAP_DBFLAG_ONE_SUFFIX		0x0008U
1841 #define	SLAP_DBFLAG_GLUE_INSTANCE	0x0010U	/* a glue backend */
1842 #define	SLAP_DBFLAG_GLUE_SUBORDINATE	0x0020U	/* child of a glue hierarchy */
1843 #define	SLAP_DBFLAG_GLUE_LINKED		0x0040U	/* child is connected to parent */
1844 #define SLAP_DBFLAG_GLUE_ADVERTISE	0x0080U /* advertise in rootDSE */
1845 #define SLAP_DBFLAG_OVERLAY		0x0100U	/* this db struct is an overlay */
1846 #define	SLAP_DBFLAG_GLOBAL_OVERLAY	0x0200U	/* this db struct is a global overlay */
1847 #define SLAP_DBFLAG_DYNAMIC		0x0400U /* this db allows dynamicObjects */
1848 #define	SLAP_DBFLAG_MONITORING		0x0800U	/* custom monitoring enabled */
1849 #define SLAP_DBFLAG_SHADOW		0x8000U /* a shadow */
1850 #define SLAP_DBFLAG_SINGLE_SHADOW	0x4000U	/* a single-provider shadow */
1851 #define SLAP_DBFLAG_SYNC_SHADOW		0x1000U /* a sync shadow */
1852 #define SLAP_DBFLAG_SLURP_SHADOW	0x2000U /* a slurp shadow */
1853 #define SLAP_DBFLAG_SHADOW_MASK		(SLAP_DBFLAG_SHADOW|SLAP_DBFLAG_SINGLE_SHADOW|SLAP_DBFLAG_SYNC_SHADOW|SLAP_DBFLAG_SLURP_SHADOW)
1854 #define SLAP_DBFLAG_CLEAN		0x10000U /* was cleanly shutdown */
1855 #define SLAP_DBFLAG_ACL_ADD		0x20000U /* check attr ACLs on adds */
1856 #define SLAP_DBFLAG_SYNC_SUBENTRY	0x40000U /* use subentry for context */
1857 #define SLAP_DBFLAG_MULTI_SHADOW	0x80000U /* uses multi-provider */
1858 	slap_mask_t	be_flags;
1859 #define SLAP_DBFLAGS(be)			((be)->be_flags)
1860 #define SLAP_NOLASTMOD(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_NOLASTMOD)
1861 #define SLAP_LASTMOD(be)			(!SLAP_NOLASTMOD(be))
1862 #define SLAP_DBHIDDEN(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_HIDDEN)
1863 #define SLAP_DB_ONE_SUFFIX(be)		(SLAP_DBFLAGS(be) & SLAP_DBFLAG_ONE_SUFFIX)
1864 #define SLAP_ISOVERLAY(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_OVERLAY)
1865 #define SLAP_ISGLOBALOVERLAY(be)		(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLOBAL_OVERLAY)
1866 #define SLAP_DBMONITORING(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_MONITORING)
1867 #define SLAP_NO_SCHEMA_CHECK(be)	\
1868 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_NO_SCHEMA_CHECK)
1869 #define	SLAP_GLUE_INSTANCE(be)		\
1870 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_INSTANCE)
1871 #define	SLAP_GLUE_SUBORDINATE(be)	\
1872 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_SUBORDINATE)
1873 #define	SLAP_GLUE_LINKED(be)		\
1874 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_LINKED)
1875 #define	SLAP_GLUE_ADVERTISE(be)	\
1876 	(SLAP_DBFLAGS(be) & SLAP_DBFLAG_GLUE_ADVERTISE)
1877 #define SLAP_SHADOW(be)				(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SHADOW)
1878 #define SLAP_SYNC_SHADOW(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SYNC_SHADOW)
1879 #define SLAP_SLURP_SHADOW(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SLURP_SHADOW)
1880 #define SLAP_SINGLE_SHADOW(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SINGLE_SHADOW)
1881 #define SLAP_MULTIMASTER(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_MULTI_SHADOW)
1882 #define SLAP_DBCLEAN(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_CLEAN)
1883 #define SLAP_DBACL_ADD(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_ACL_ADD)
1884 #define SLAP_SYNC_SUBENTRY(be)			(SLAP_DBFLAGS(be) & SLAP_DBFLAG_SYNC_SUBENTRY)
1885 
1886 	slap_mask_t	be_restrictops;		/* restriction operations */
1887 #define SLAP_RESTRICT_OP_ADD		0x0001U
1888 #define	SLAP_RESTRICT_OP_BIND		0x0002U
1889 #define SLAP_RESTRICT_OP_COMPARE	0x0004U
1890 #define SLAP_RESTRICT_OP_DELETE		0x0008U
1891 #define	SLAP_RESTRICT_OP_EXTENDED	0x0010U
1892 #define SLAP_RESTRICT_OP_MODIFY		0x0020U
1893 #define SLAP_RESTRICT_OP_RENAME		0x0040U
1894 #define SLAP_RESTRICT_OP_SEARCH		0x0080U
1895 #define SLAP_RESTRICT_OP_MASK		0x00FFU
1896 
1897 #define	SLAP_RESTRICT_READONLY		0x80000000U
1898 
1899 #define SLAP_RESTRICT_EXOP_START_TLS		0x0100U
1900 #define	SLAP_RESTRICT_EXOP_MODIFY_PASSWD	0x0200U
1901 #define SLAP_RESTRICT_EXOP_WHOAMI		0x0400U
1902 #define SLAP_RESTRICT_EXOP_CANCEL		0x0800U
1903 #define SLAP_RESTRICT_EXOP_MASK			0xFF00U
1904 
1905 #define SLAP_RESTRICT_OP_READS	\
1906 	( SLAP_RESTRICT_OP_COMPARE	\
1907 	| SLAP_RESTRICT_OP_SEARCH )
1908 #define SLAP_RESTRICT_OP_WRITES	\
1909 	( SLAP_RESTRICT_OP_ADD    \
1910 	| SLAP_RESTRICT_OP_DELETE \
1911 	| SLAP_RESTRICT_OP_MODIFY \
1912 	| SLAP_RESTRICT_OP_RENAME )
1913 #define SLAP_RESTRICT_OP_ALL \
1914 	( SLAP_RESTRICT_OP_READS \
1915 	| SLAP_RESTRICT_OP_WRITES \
1916 	| SLAP_RESTRICT_OP_BIND \
1917 	| SLAP_RESTRICT_OP_EXTENDED )
1918 
1919 #define SLAP_ALLOW_BIND_V2		0x0001U	/* LDAPv2 bind */
1920 #define SLAP_ALLOW_BIND_ANON_CRED	0x0002U /* cred should be empty */
1921 #define SLAP_ALLOW_BIND_ANON_DN		0x0004U /* dn should be empty */
1922 
1923 #define SLAP_ALLOW_UPDATE_ANON		0x0008U /* allow anonymous updates */
1924 #define SLAP_ALLOW_PROXY_AUTHZ_ANON	0x0010U /* allow anonymous proxyAuthz */
1925 
1926 #define SLAP_DISALLOW_BIND_ANON		0x0001U /* no anonymous */
1927 #define SLAP_DISALLOW_BIND_SIMPLE	0x0002U	/* simple authentication */
1928 
1929 #define SLAP_DISALLOW_TLS_2_ANON	0x0010U /* StartTLS -> Anonymous */
1930 #define SLAP_DISALLOW_TLS_AUTHC		0x0020U	/* TLS while authenticated */
1931 
1932 #define SLAP_DISALLOW_PROXY_AUTHZ_N_CRIT	0x0100U
1933 #define SLAP_DISALLOW_DONTUSECOPY_N_CRIT	0x0200U
1934 
1935 #define SLAP_DISALLOW_AUX_WO_CR		0x4000U
1936 
1937 	slap_mask_t	be_requires;	/* pre-operation requirements */
1938 #define SLAP_REQUIRE_BIND		0x0001U	/* bind before op */
1939 #define SLAP_REQUIRE_LDAP_V3	0x0002U	/* LDAPv3 before op */
1940 #define SLAP_REQUIRE_AUTHC		0x0004U	/* authentication before op */
1941 #define SLAP_REQUIRE_SASL		0x0008U	/* SASL before op  */
1942 #define SLAP_REQUIRE_STRONG		0x0010U	/* strong authentication before op */
1943 
1944 	/* Required Security Strength Factor */
1945 	slap_ssf_set_t be_ssf_set;
1946 
1947 	BerVarray	be_suffix;	/* the DN suffixes of data in this backend */
1948 	BerVarray	be_nsuffix;	/* the normalized DN suffixes in this backend */
1949 	struct berval be_schemadn;	/* per-backend subschema subentry DN */
1950 	struct berval be_schemandn;	/* normalized subschema DN */
1951 	struct berval be_rootdn;	/* the magic "root" name (DN) for this db */
1952 	struct berval be_rootndn;	/* the magic "root" normalized name (DN) for this db */
1953 	struct berval be_rootpw;	/* the magic "root" password for this db	*/
1954 	unsigned int be_max_deref_depth; /* limit for depth of an alias deref  */
1955 #define be_sizelimit	be_def_limit.lms_s_soft
1956 #define be_timelimit	be_def_limit.lms_t_soft
1957 	struct slap_limits_set be_def_limit; /* default limits */
1958 	struct slap_limits **be_limits; /* regex-based size and time limits */
1959 	AccessControl *be_acl;	/* access control list for this backend	   */
1960 	slap_access_t	be_dfltaccess;	/* access given if no acl matches	   */
1961 	AttributeName	*be_extra_anlist;	/* attributes that need to be added to search requests (ITS#6513) */
1962 
1963 	/* Consumer Information */
1964 	struct berval be_update_ndn;	/* allowed to make changes (in replicas) */
1965 	BerVarray	be_update_refs;	/* where to refer modifying clients to */
1966 	struct		be_pcl	*be_pending_csn_list;
1967 	ldap_pvt_thread_mutex_t					be_pcl_mutex;
1968 	struct syncinfo_s						*be_syncinfo; /* For syncrepl */
1969 
1970 	void    *be_pb;         /* Netscape plugin */
1971 	struct ConfigOCs *be_cf_ocs;
1972 
1973 	void	*be_private;	/* anything the backend database needs 	   */
1974 	LDAP_STAILQ_ENTRY(BackendDB) be_next;
1975 };
1976 
1977 /* Backend function typedefs */
1978 typedef int (BI_bi_func) LDAP_P((BackendInfo *bi));
1979 typedef BI_bi_func BI_init;
1980 typedef BI_bi_func BI_open;
1981 typedef BI_bi_func BI_close;
1982 typedef BI_bi_func BI_destroy;
1983 typedef int (BI_config) LDAP_P((BackendInfo *bi,
1984 	const char *fname, int lineno,
1985 	int argc, char **argv));
1986 
1987 typedef struct config_reply_s ConfigReply; /* config.h */
1988 typedef int (BI_db_func) LDAP_P((Backend *bd, ConfigReply *cr));
1989 typedef BI_db_func BI_db_init;
1990 typedef BI_db_func BI_db_open;
1991 typedef BI_db_func BI_db_close;
1992 typedef BI_db_func BI_db_destroy;
1993 typedef int (BI_db_config) LDAP_P((Backend *bd,
1994 	const char *fname, int lineno,
1995 	int argc, char **argv));
1996 
1997 typedef struct req_bind_s {
1998 	int rb_method;
1999 	struct berval rb_cred;
2000 	struct berval rb_edn;
2001 	slap_ssf_t rb_ssf;
2002 	struct berval rb_mech;
2003 } req_bind_s;
2004 
2005 typedef struct req_search_s {
2006 	int rs_scope;
2007 	int rs_deref;
2008 	int rs_slimit;
2009 	int rs_tlimit;
2010 	/* NULL means be_isroot evaluated to TRUE */
2011 	struct slap_limits_set *rs_limit;
2012 	int rs_attrsonly;
2013 	AttributeName *rs_attrs;
2014 	Filter *rs_filter;
2015 	struct berval rs_filterstr;
2016 } req_search_s;
2017 
2018 typedef struct req_compare_s {
2019 	AttributeAssertion *rs_ava;
2020 } req_compare_s;
2021 
2022 typedef struct req_modifications_s {
2023 	Modifications *rs_modlist;
2024 	char rs_no_opattrs;		/* don't att modify operational attrs */
2025 } req_modifications_s;
2026 
2027 typedef struct req_modify_s {
2028 	req_modifications_s rs_mods;	/* NOTE: must be first in req_modify_s & req_modrdn_s */
2029 	int rs_increment;
2030 } req_modify_s;
2031 
2032 typedef struct req_modrdn_s {
2033 	req_modifications_s rs_mods;	/* NOTE: must be first in req_modify_s & req_modrdn_s */
2034 	int rs_deleteoldrdn;
2035 	struct berval rs_newrdn;
2036 	struct berval rs_nnewrdn;
2037 	struct berval *rs_newSup;
2038 	struct berval *rs_nnewSup;
2039 } req_modrdn_s;
2040 
2041 typedef struct req_add_s {
2042 	Modifications *rs_modlist;
2043 	Entry *rs_e;
2044 } req_add_s;
2045 
2046 typedef struct req_abandon_s {
2047 	ber_int_t rs_msgid;
2048 } req_abandon_s;
2049 
2050 #ifdef SLAP_SCHEMA_EXPOSE
2051 #define SLAP_EXOP_HIDE 0x0000
2052 #else
2053 #define SLAP_EXOP_HIDE 0x8000
2054 #endif
2055 #define SLAP_EXOP_WRITES 0x0001		/* Exop does writes */
2056 
2057 typedef struct req_extended_s {
2058 	struct berval rs_reqoid;
2059 	int rs_flags;
2060 	struct berval *rs_reqdata;
2061 } req_extended_s;
2062 
2063 typedef struct req_pwdexop_s {
2064 	struct req_extended_s rs_extended;
2065 	struct berval rs_old;
2066 	struct berval rs_new;
2067 	Modifications *rs_mods;
2068 	Modifications **rs_modtail;
2069 } req_pwdexop_s;
2070 
2071 typedef enum slap_reply_e {
2072 	REP_RESULT,
2073 	REP_SASL,
2074 	REP_EXTENDED,
2075 	REP_SEARCH,
2076 	REP_SEARCHREF,
2077 	REP_INTERMEDIATE,
2078 	REP_GLUE_RESULT
2079 } slap_reply_t;
2080 
2081 typedef struct rep_sasl_s {
2082 	struct berval *r_sasldata;
2083 } rep_sasl_s;
2084 
2085 typedef struct rep_extended_s {
2086 	const char *r_rspoid;
2087 	struct berval *r_rspdata;
2088 } rep_extended_s;
2089 
2090 typedef struct rep_search_s {
2091 	Entry *r_entry;
2092 	slap_mask_t r_attr_flags;
2093 #define SLAP_ATTRS_UNDEFINED	(0x00U)
2094 #define SLAP_OPATTRS_NO			(0x01U)
2095 #define SLAP_OPATTRS_YES		(0x02U)
2096 #define SLAP_USERATTRS_NO		(0x10U)
2097 #define SLAP_USERATTRS_YES		(0x20U)
2098 #define SLAP_OPATTRS_MASK(f)	((f) & (SLAP_OPATTRS_NO|SLAP_OPATTRS_YES))
2099 #define SLAP_OPATTRS(f)			(((f) & SLAP_OPATTRS_YES) == SLAP_OPATTRS_YES)
2100 #define SLAP_USERATTRS_MASK(f)	((f) & (SLAP_USERATTRS_NO|SLAP_USERATTRS_YES))
2101 #define SLAP_USERATTRS(f)		\
2102 	(((f) & SLAP_USERATTRS_YES) == SLAP_USERATTRS_YES)
2103 
2104 	Attribute *r_operational_attrs;
2105 	AttributeName *r_attrs;
2106 	int r_nentries;
2107 	BerVarray r_v2ref;
2108 } rep_search_s;
2109 
2110 struct SlapReply {
2111 	slap_reply_t sr_type;
2112 	ber_tag_t sr_tag;
2113 	ber_int_t sr_msgid;
2114 	ber_int_t sr_err;
2115 	const char *sr_matched;
2116 	const char *sr_text;
2117 	BerVarray sr_ref;
2118 	LDAPControl **sr_ctrls;
2119 	union sr_u {
2120 		rep_search_s sru_search;
2121 		rep_sasl_s sru_sasl;
2122 		rep_extended_s sru_extended;
2123 	} sr_un;
2124 	slap_mask_t sr_flags;
2125 #define	REP_ENTRY_MODIFIABLE	((slap_mask_t) 0x0001U)
2126 #define	REP_ENTRY_MUSTBEFREED	((slap_mask_t) 0x0002U)
2127 #define	REP_ENTRY_MUSTRELEASE	((slap_mask_t) 0x0004U)
2128 #define	REP_ENTRY_MASK		(REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTFLUSH)
2129 #define	REP_ENTRY_MUSTFLUSH	(REP_ENTRY_MUSTBEFREED|REP_ENTRY_MUSTRELEASE)
2130 
2131 #define	REP_MATCHED_MUSTBEFREED	((slap_mask_t) 0x0010U)
2132 #define	REP_MATCHED_MASK	(REP_MATCHED_MUSTBEFREED)
2133 
2134 #define REP_REF_MUSTBEFREED	((slap_mask_t) 0x0020U)
2135 #define REP_REF_MASK		(REP_REF_MUSTBEFREED)
2136 
2137 #define REP_CTRLS_MUSTBEFREED	((slap_mask_t) 0x0040U)
2138 #define REP_CTRLS_MASK		(REP_CTRLS_MUSTBEFREED)
2139 
2140 #define	REP_NO_ENTRYDN		((slap_mask_t) 0x1000U)
2141 #define	REP_NO_SUBSCHEMA	((slap_mask_t) 0x2000U)
2142 #define	REP_NO_OPERATIONALS	(REP_NO_ENTRYDN|REP_NO_SUBSCHEMA)
2143 };
2144 
2145 /* short hands for response members */
2146 #define	sr_attrs sr_un.sru_search.r_attrs
2147 #define	sr_entry sr_un.sru_search.r_entry
2148 #define	sr_operational_attrs sr_un.sru_search.r_operational_attrs
2149 #define sr_attr_flags sr_un.sru_search.r_attr_flags
2150 #define	sr_v2ref sr_un.sru_search.r_v2ref
2151 #define	sr_nentries sr_un.sru_search.r_nentries
2152 #define	sr_rspoid sr_un.sru_extended.r_rspoid
2153 #define	sr_rspdata sr_un.sru_extended.r_rspdata
2154 #define	sr_sasldata sr_un.sru_sasl.r_sasldata
2155 
2156 typedef int (BI_op_func) LDAP_P(( Operation *op, SlapReply *rs ));
2157 typedef BI_op_func BI_op_bind;
2158 typedef BI_op_func BI_op_unbind;
2159 typedef BI_op_func BI_op_search;
2160 typedef BI_op_func BI_op_compare;
2161 typedef BI_op_func BI_op_modify;
2162 typedef BI_op_func BI_op_modrdn;
2163 typedef BI_op_func BI_op_add;
2164 typedef BI_op_func BI_op_delete;
2165 typedef BI_op_func BI_op_abandon;
2166 typedef BI_op_func BI_op_extended;
2167 typedef BI_op_func BI_op_cancel;
2168 typedef BI_op_func BI_chk_referrals;
2169 typedef BI_op_func BI_chk_controls;
2170 typedef int (BI_entry_release_rw)
2171 	LDAP_P(( Operation *op, Entry *e, int rw ));
2172 typedef int (BI_entry_get_rw) LDAP_P(( Operation *op, struct berval *ndn,
2173 	ObjectClass *oc, AttributeDescription *at, int rw, Entry **e ));
2174 typedef int (BI_operational) LDAP_P(( Operation *op, SlapReply *rs ));
2175 typedef int (BI_has_subordinates) LDAP_P(( Operation *op,
2176 	Entry *e, int *hasSubs ));
2177 typedef int (BI_access_allowed) LDAP_P(( Operation *op, Entry *e,
2178 	AttributeDescription *desc, struct berval *val, slap_access_t access,
2179 	AccessControlState *state, slap_mask_t *maskp ));
2180 typedef int (BI_acl_group) LDAP_P(( Operation *op, Entry *target,
2181 	struct berval *gr_ndn, struct berval *op_ndn,
2182 	ObjectClass *group_oc, AttributeDescription *group_at ));
2183 typedef int (BI_acl_attribute) LDAP_P(( Operation *op, Entry *target,
2184 	struct berval *entry_ndn, AttributeDescription *entry_at,
2185 	BerVarray *vals, slap_access_t access ));
2186 
2187 typedef int (BI_conn_func) LDAP_P(( BackendDB *bd, Connection *c ));
2188 typedef BI_conn_func BI_connection_init;
2189 typedef BI_conn_func BI_connection_destroy;
2190 
2191 typedef int (BI_tool_entry_open) LDAP_P(( BackendDB *be, int mode ));
2192 typedef int (BI_tool_entry_close) LDAP_P(( BackendDB *be ));
2193 typedef ID (BI_tool_entry_first) LDAP_P(( BackendDB *be ));
2194 typedef ID (BI_tool_entry_first_x) LDAP_P(( BackendDB *be, struct berval *base, int scope, Filter *f ));
2195 typedef ID (BI_tool_entry_next) LDAP_P(( BackendDB *be ));
2196 typedef Entry* (BI_tool_entry_get) LDAP_P(( BackendDB *be, ID id ));
2197 typedef ID (BI_tool_entry_put) LDAP_P(( BackendDB *be, Entry *e,
2198 	struct berval *text ));
2199 typedef int (BI_tool_entry_reindex) LDAP_P(( BackendDB *be, ID id, AttributeDescription **adv ));
2200 typedef int (BI_tool_sync) LDAP_P(( BackendDB *be ));
2201 typedef ID (BI_tool_dn2id_get) LDAP_P(( BackendDB *be, struct berval *dn ));
2202 typedef ID (BI_tool_entry_modify) LDAP_P(( BackendDB *be, Entry *e,
2203 	struct berval *text ));
2204 
2205 struct BackendInfo {
2206 	char	*bi_type; /* type of backend */
2207 
2208 	/*
2209 	 * per backend type routines:
2210 	 * bi_init: called to allocate a backend_info structure,
2211 	 *		called once BEFORE configuration file is read.
2212 	 *		bi_init() initializes this structure hence is
2213 	 *		called directly from be_initialize()
2214 	 * bi_config: called per 'backend' specific option
2215 	 *		all such options must before any 'database' options
2216 	 *		bi_config() is called only from read_config()
2217 	 * bi_open: called to open each database, called
2218 	 *		once AFTER configuration file is read but
2219 	 *		BEFORE any bi_db_open() calls.
2220 	 *		bi_open() is called from backend_startup()
2221 	 * bi_close: called to close each database, called
2222 	 *		once during shutdown after all bi_db_close calls.
2223 	 *		bi_close() is called from backend_shutdown()
2224 	 * bi_destroy: called to destroy each database, called
2225 	 *		once during shutdown after all bi_db_destroy calls.
2226 	 *		bi_destory() is called from backend_destroy()
2227 	 */
2228 	BI_init	*bi_init;
2229 	BI_config	*bi_config;
2230 	BI_open *bi_open;
2231 	BI_close	*bi_close;
2232 	BI_destroy	*bi_destroy;
2233 
2234 	/*
2235 	 * per database routines:
2236 	 * bi_db_init: called to initialize each database,
2237 	 *	called upon reading 'database <type>'
2238 	 *	called only from backend_db_init()
2239 	 * bi_db_config: called to configure each database,
2240 	 *  called per database to handle per database options
2241 	 *	called only from read_config()
2242 	 * bi_db_open: called to open each database
2243 	 *	called once per database immediately AFTER bi_open()
2244 	 *	calls but before daemon startup.
2245 	 *  called only by backend_startup()
2246 	 * bi_db_close: called to close each database
2247 	 *	called once per database during shutdown but BEFORE
2248 	 *  any bi_close call.
2249 	 *  called only by backend_shutdown()
2250 	 * bi_db_destroy: called to destroy each database
2251 	 *  called once per database during shutdown AFTER all
2252 	 *  bi_close calls but before bi_destory calls.
2253 	 *  called only by backend_destory()
2254 	 */
2255 	BI_db_init	*bi_db_init;
2256 	BI_db_config	*bi_db_config;
2257 	BI_db_open	*bi_db_open;
2258 	BI_db_close	*bi_db_close;
2259 	BI_db_destroy	*bi_db_destroy;
2260 
2261 	/* LDAP Operations Handling Routines */
2262 	BI_op_bind	*bi_op_bind;
2263 	BI_op_unbind	*bi_op_unbind;
2264 	BI_op_search	*bi_op_search;
2265 	BI_op_compare	*bi_op_compare;
2266 	BI_op_modify	*bi_op_modify;
2267 	BI_op_modrdn	*bi_op_modrdn;
2268 	BI_op_add	*bi_op_add;
2269 	BI_op_delete	*bi_op_delete;
2270 	BI_op_abandon	*bi_op_abandon;
2271 
2272 	/* Extended Operations Helper */
2273 	BI_op_extended	*bi_extended;
2274 	BI_op_cancel	*bi_op_cancel;
2275 
2276 	/* Auxilary Functions */
2277 	BI_operational		*bi_operational;
2278 	BI_chk_referrals	*bi_chk_referrals;
2279 	BI_chk_controls		*bi_chk_controls;
2280 	BI_entry_get_rw		*bi_entry_get_rw;
2281 	BI_entry_release_rw	*bi_entry_release_rw;
2282 
2283 	BI_has_subordinates	*bi_has_subordinates;
2284 	BI_access_allowed	*bi_access_allowed;
2285 	BI_acl_group		*bi_acl_group;
2286 	BI_acl_attribute	*bi_acl_attribute;
2287 
2288 	BI_connection_init	*bi_connection_init;
2289 	BI_connection_destroy	*bi_connection_destroy;
2290 
2291 	/* hooks for slap tools */
2292 	BI_tool_entry_open	*bi_tool_entry_open;
2293 	BI_tool_entry_close	*bi_tool_entry_close;
2294 	BI_tool_entry_first	*bi_tool_entry_first;	/* deprecated */
2295 	BI_tool_entry_first_x	*bi_tool_entry_first_x;
2296 	BI_tool_entry_next	*bi_tool_entry_next;
2297 	BI_tool_entry_get	*bi_tool_entry_get;
2298 	BI_tool_entry_put	*bi_tool_entry_put;
2299 	BI_tool_entry_reindex	*bi_tool_entry_reindex;
2300 	BI_tool_sync		*bi_tool_sync;
2301 	BI_tool_dn2id_get	*bi_tool_dn2id_get;
2302 	BI_tool_entry_modify	*bi_tool_entry_modify;
2303 
2304 #define SLAP_INDEX_ADD_OP		0x0001
2305 #define SLAP_INDEX_DELETE_OP	0x0002
2306 
2307 	slap_mask_t	bi_flags; /* backend flags */
2308 #define SLAP_BFLAG_MONITOR			0x0001U /* a monitor backend */
2309 #define SLAP_BFLAG_CONFIG			0x0002U /* a config backend */
2310 #define SLAP_BFLAG_FRONTEND			0x0004U /* the frontendDB */
2311 #define SLAP_BFLAG_NOLASTMODCMD		0x0010U
2312 #define SLAP_BFLAG_INCREMENT		0x0100U
2313 #define SLAP_BFLAG_ALIASES			0x1000U
2314 #define SLAP_BFLAG_REFERRALS		0x2000U
2315 #define SLAP_BFLAG_SUBENTRIES		0x4000U
2316 #define SLAP_BFLAG_DYNAMIC			0x8000U
2317 
2318 /* overlay specific */
2319 #define	SLAPO_BFLAG_SINGLE		0x01000000U
2320 #define	SLAPO_BFLAG_DBONLY		0x02000000U
2321 #define	SLAPO_BFLAG_GLOBONLY		0x04000000U
2322 #define	SLAPO_BFLAG_MASK		0xFF000000U
2323 
2324 #define SLAP_BFLAGS(be)		((be)->bd_info->bi_flags)
2325 #define SLAP_MONITOR(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_MONITOR)
2326 #define SLAP_CONFIG(be)		(SLAP_BFLAGS(be) & SLAP_BFLAG_CONFIG)
2327 #define SLAP_FRONTEND(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_FRONTEND)
2328 #define SLAP_INCREMENT(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_INCREMENT)
2329 #define SLAP_ALIASES(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_ALIASES)
2330 #define SLAP_REFERRALS(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_REFERRALS)
2331 #define SLAP_SUBENTRIES(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_SUBENTRIES)
2332 #define SLAP_DYNAMIC(be)	((SLAP_BFLAGS(be) & SLAP_BFLAG_DYNAMIC) || (SLAP_DBFLAGS(be) & SLAP_DBFLAG_DYNAMIC))
2333 #define SLAP_NOLASTMODCMD(be)	(SLAP_BFLAGS(be) & SLAP_BFLAG_NOLASTMODCMD)
2334 #define SLAP_LASTMODCMD(be)	(!SLAP_NOLASTMODCMD(be))
2335 
2336 /* overlay specific */
2337 #define SLAPO_SINGLE(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_SINGLE)
2338 #define SLAPO_DBONLY(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_DBONLY)
2339 #define SLAPO_GLOBONLY(be)	(SLAP_BFLAGS(be) & SLAPO_BFLAG_GLOBONLY)
2340 
2341 	char	**bi_controls;		/* supported controls */
2342 	char	bi_ctrls[SLAP_MAX_CIDS + 1];
2343 
2344 	unsigned int bi_nDB;	/* number of databases of this type */
2345 	struct ConfigOCs *bi_cf_ocs;
2346 	char	**bi_obsolete_names;
2347 	void	*bi_extra;		/* backend type-specific APIs */
2348 	void	*bi_private;	/* backend type-specific config data */
2349 	LDAP_STAILQ_ENTRY(BackendInfo) bi_next ;
2350 };
2351 
2352 #define c_authtype	c_authz.sai_method
2353 #define c_authmech	c_authz.sai_mech
2354 #define c_dn		c_authz.sai_dn
2355 #define c_ndn		c_authz.sai_ndn
2356 #define c_ssf		c_authz.sai_ssf
2357 #define c_transport_ssf	c_authz.sai_transport_ssf
2358 #define c_tls_ssf	c_authz.sai_tls_ssf
2359 #define c_sasl_ssf	c_authz.sai_sasl_ssf
2360 
2361 #define o_authtype	o_authz.sai_method
2362 #define o_authmech	o_authz.sai_mech
2363 #define o_dn		o_authz.sai_dn
2364 #define o_ndn		o_authz.sai_ndn
2365 #define o_ssf		o_authz.sai_ssf
2366 #define o_transport_ssf	o_authz.sai_transport_ssf
2367 #define o_tls_ssf	o_authz.sai_tls_ssf
2368 #define o_sasl_ssf	o_authz.sai_sasl_ssf
2369 
2370 typedef int (slap_response)( Operation *, SlapReply * );
2371 
2372 struct slap_callback;
2373 typedef void (slap_writewait)( Operation *, struct slap_callback * );
2374 
2375 typedef struct slap_callback {
2376 	struct slap_callback *sc_next;
2377 	slap_response *sc_response;
2378 	slap_response *sc_cleanup;
2379 	void *sc_private;
2380 	slap_writewait *sc_writewait;
2381 } slap_callback;
2382 
2383 struct slap_overinfo;
2384 
2385 typedef enum slap_operation_e {
2386 	op_bind = 0,
2387 	op_unbind,
2388 	op_search,
2389 	op_compare,
2390 	op_modify,
2391 	op_modrdn,
2392 	op_add,
2393 	op_delete,
2394 	op_abandon,
2395 	op_extended,
2396 	op_cancel,
2397 	op_aux_operational,
2398 	op_aux_chk_referrals,
2399 	op_aux_chk_controls,
2400 	op_last
2401 } slap_operation_t;
2402 
2403 typedef struct slap_overinst {
2404 	BackendInfo on_bi;
2405 	slap_response *on_response;
2406 	struct slap_overinfo *on_info;
2407 	struct slap_overinst *on_next;
2408 } slap_overinst;
2409 
2410 typedef struct slap_overinfo {
2411 	BackendInfo oi_bi;
2412 	BackendInfo *oi_orig;
2413 	BackendDB	*oi_origdb;
2414 	struct slap_overinst *oi_list;
2415 } slap_overinfo;
2416 
2417 /* Should successive callbacks in a chain be processed? */
2418 #define	SLAP_CB_BYPASS		0x08800
2419 #define	SLAP_CB_CONTINUE	0x08000
2420 
2421 /*
2422  * Paged Results state
2423  */
2424 typedef unsigned long PagedResultsCookie;
2425 typedef struct PagedResultsState {
2426 	Backend *ps_be;
2427 	ber_int_t ps_size;
2428 	int ps_count;
2429 	PagedResultsCookie ps_cookie;
2430 	struct berval ps_cookieval;
2431 } PagedResultsState;
2432 
2433 struct slap_csn_entry {
2434 	Operation *ce_op;
2435 	struct berval ce_csn;
2436 	int ce_sid;
2437 #define SLAP_CSN_PENDING	1
2438 #define SLAP_CSN_COMMIT		2
2439 	long ce_state;
2440 	LDAP_TAILQ_ENTRY (slap_csn_entry) ce_csn_link;
2441 };
2442 
2443 /*
2444  * Caches the result of a backend_group check for ACL evaluation
2445  */
2446 typedef struct GroupAssertion {
2447 	struct GroupAssertion *ga_next;
2448 	Backend *ga_be;
2449 	ObjectClass *ga_oc;
2450 	AttributeDescription *ga_at;
2451 	int ga_res;
2452 	ber_len_t ga_len;
2453 	char ga_ndn[1];
2454 } GroupAssertion;
2455 
2456 struct slap_control_ids {
2457 	int sc_LDAPsync;
2458 	int sc_assert;
2459 	int sc_domainScope;
2460 	int sc_dontUseCopy;
2461 	int sc_manageDSAit;
2462 	int sc_modifyIncrement;
2463 	int sc_noOp;
2464 	int sc_pagedResults;
2465 	int sc_permissiveModify;
2466 	int sc_postRead;
2467 	int sc_preRead;
2468 	int sc_proxyAuthz;
2469 	int sc_relax;
2470 	int sc_searchOptions;
2471 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
2472 	int sc_sortedResults;
2473 #endif
2474 	int sc_subentries;
2475 #ifdef SLAP_CONTROL_X_TREE_DELETE
2476 	int sc_treeDelete;
2477 #endif
2478 #ifdef LDAP_X_TXN
2479 	int sc_txnSpec;
2480 #endif
2481 #ifdef SLAP_CONTROL_X_SESSION_TRACKING
2482 	int sc_sessionTracking;
2483 #endif
2484 	int sc_valuesReturnFilter;
2485 #ifdef SLAP_CONTROL_X_WHATFAILED
2486 	int sc_whatFailed;
2487 #endif
2488 };
2489 
2490 /*
2491  * Operation indices
2492  */
2493 typedef enum {
2494 	SLAP_OP_BIND = 0,
2495 	SLAP_OP_UNBIND,
2496 	SLAP_OP_SEARCH,
2497 	SLAP_OP_COMPARE,
2498 	SLAP_OP_MODIFY,
2499 	SLAP_OP_MODRDN,
2500 	SLAP_OP_ADD,
2501 	SLAP_OP_DELETE,
2502 	SLAP_OP_ABANDON,
2503 	SLAP_OP_EXTENDED,
2504 	SLAP_OP_LAST
2505 } slap_op_t;
2506 
2507 typedef struct slap_counters_t {
2508 	struct slap_counters_t	*sc_next;
2509 	ldap_pvt_thread_mutex_t	sc_mutex;
2510 	ldap_pvt_mp_t		sc_bytes;
2511 	ldap_pvt_mp_t		sc_pdu;
2512 	ldap_pvt_mp_t		sc_entries;
2513 	ldap_pvt_mp_t		sc_refs;
2514 
2515 	ldap_pvt_mp_t		sc_ops_completed;
2516 	ldap_pvt_mp_t		sc_ops_initiated;
2517 #ifdef SLAPD_MONITOR
2518 	ldap_pvt_mp_t		sc_ops_completed_[SLAP_OP_LAST];
2519 	ldap_pvt_mp_t		sc_ops_initiated_[SLAP_OP_LAST];
2520 #endif /* SLAPD_MONITOR */
2521 } slap_counters_t;
2522 
2523 /*
2524  * represents an operation pending from an ldap client
2525  */
2526 typedef struct Opheader {
2527 	unsigned long	oh_opid;	/* id of this operation */
2528 	unsigned long	oh_connid;	/* id of conn initiating this op */
2529 	Connection	*oh_conn;	/* connection spawning this op */
2530 
2531 	ber_int_t	oh_msgid;	/* msgid of the request */
2532 	ber_int_t	oh_protocol;	/* version of the LDAP protocol used by client */
2533 
2534 	ldap_pvt_thread_t	oh_tid;	/* thread handling this op */
2535 
2536 	void	*oh_threadctx;		/* thread pool thread context */
2537 	void	*oh_tmpmemctx;		/* slab malloc context */
2538 	BerMemoryFunctions *oh_tmpmfuncs;
2539 
2540 	slap_counters_t	*oh_counters;
2541 
2542 	char		oh_log_prefix[ /* sizeof("conn= op=") + 2*LDAP_PVT_INTTYPE_CHARS(unsigned long) */ SLAP_TEXT_BUFLEN ];
2543 
2544 #ifdef LDAP_SLAPI
2545 	void	*oh_extensions;		/* NS-SLAPI plugin */
2546 #endif
2547 } Opheader;
2548 
2549 typedef union OpRequest {
2550 	req_add_s oq_add;
2551 	req_bind_s oq_bind;
2552 	req_compare_s oq_compare;
2553 	req_modify_s oq_modify;
2554 	req_modrdn_s oq_modrdn;
2555 	req_search_s oq_search;
2556 	req_abandon_s oq_abandon;
2557 	req_abandon_s oq_cancel;
2558 	req_extended_s oq_extended;
2559 	req_pwdexop_s oq_pwdexop;
2560 } OpRequest;
2561 
2562 /* This is only a header. Actual users should define their own
2563  * structs with the oe_next / oe_key fields at the top and
2564  * whatever else they need following.
2565  */
2566 typedef struct OpExtra {
2567 	LDAP_SLIST_ENTRY(OpExtra) oe_next;
2568 	void *oe_key;
2569 } OpExtra;
2570 
2571 typedef struct OpExtraDB {
2572 	OpExtra oe;
2573 	BackendDB *oe_db;
2574 } OpExtraDB;
2575 
2576 struct Operation {
2577 	Opheader *o_hdr;
2578 
2579 #define o_opid o_hdr->oh_opid
2580 #define o_connid o_hdr->oh_connid
2581 #define o_conn o_hdr->oh_conn
2582 #define o_msgid o_hdr->oh_msgid
2583 #define o_protocol o_hdr->oh_protocol
2584 #define o_tid o_hdr->oh_tid
2585 #define o_threadctx o_hdr->oh_threadctx
2586 #define o_tmpmemctx o_hdr->oh_tmpmemctx
2587 #define o_tmpmfuncs o_hdr->oh_tmpmfuncs
2588 #define o_counters o_hdr->oh_counters
2589 
2590 #define	o_tmpalloc	o_tmpmfuncs->bmf_malloc
2591 #define o_tmpcalloc	o_tmpmfuncs->bmf_calloc
2592 #define	o_tmprealloc	o_tmpmfuncs->bmf_realloc
2593 #define	o_tmpfree	o_tmpmfuncs->bmf_free
2594 
2595 #define o_log_prefix o_hdr->oh_log_prefix
2596 
2597 	ber_tag_t	o_tag;		/* tag of the request */
2598 	time_t		o_time;		/* time op was initiated */
2599 	int			o_tincr;	/* counter for multiple ops with same o_time */
2600 
2601 	BackendDB	*o_bd;	/* backend DB processing this op */
2602 	struct berval	o_req_dn;	/* DN of target of request */
2603 	struct berval	o_req_ndn;
2604 
2605 	OpRequest o_request;
2606 
2607 /* short hands for union members */
2608 #define oq_add o_request.oq_add
2609 #define oq_bind o_request.oq_bind
2610 #define oq_compare o_request.oq_compare
2611 #define oq_modify o_request.oq_modify
2612 #define oq_modrdn o_request.oq_modrdn
2613 #define oq_search o_request.oq_search
2614 #define oq_abandon o_request.oq_abandon
2615 #define oq_cancel o_request.oq_cancel
2616 #define oq_extended o_request.oq_extended
2617 #define oq_pwdexop o_request.oq_pwdexop
2618 
2619 /* short hands for inner request members */
2620 #define orb_method oq_bind.rb_method
2621 #define orb_cred oq_bind.rb_cred
2622 #define orb_edn oq_bind.rb_edn
2623 #define orb_ssf oq_bind.rb_ssf
2624 #define orb_mech oq_bind.rb_mech
2625 
2626 #define ors_scope oq_search.rs_scope
2627 #define ors_deref oq_search.rs_deref
2628 #define ors_slimit oq_search.rs_slimit
2629 #define ors_tlimit oq_search.rs_tlimit
2630 #define ors_limit oq_search.rs_limit
2631 #define ors_attrsonly oq_search.rs_attrsonly
2632 #define ors_attrs oq_search.rs_attrs
2633 #define ors_filter oq_search.rs_filter
2634 #define ors_filterstr oq_search.rs_filterstr
2635 
2636 #define orr_modlist oq_modrdn.rs_mods.rs_modlist
2637 #define orr_no_opattrs oq_modrdn.rs_mods.rs_no_opattrs
2638 #define orr_deleteoldrdn oq_modrdn.rs_deleteoldrdn
2639 #define orr_newrdn oq_modrdn.rs_newrdn
2640 #define orr_nnewrdn oq_modrdn.rs_nnewrdn
2641 #define orr_newSup oq_modrdn.rs_newSup
2642 #define orr_nnewSup oq_modrdn.rs_nnewSup
2643 
2644 #define orc_ava oq_compare.rs_ava
2645 
2646 #define ora_e oq_add.rs_e
2647 #define ora_modlist oq_add.rs_modlist
2648 
2649 #define orn_msgid oq_abandon.rs_msgid
2650 
2651 #define orm_modlist oq_modify.rs_mods.rs_modlist
2652 #define orm_no_opattrs oq_modify.rs_mods.rs_no_opattrs
2653 #define orm_increment oq_modify.rs_increment
2654 
2655 #define ore_reqoid oq_extended.rs_reqoid
2656 #define ore_flags oq_extended.rs_flags
2657 #define ore_reqdata oq_extended.rs_reqdata
2658 	volatile sig_atomic_t o_abandon;	/* abandon flag */
2659 	volatile sig_atomic_t o_cancel;		/* cancel flag */
2660 #define SLAP_CANCEL_NONE				0x00
2661 #define SLAP_CANCEL_REQ					0x01
2662 #define SLAP_CANCEL_ACK					0x02
2663 #define SLAP_CANCEL_DONE				0x03
2664 
2665 	GroupAssertion *o_groups;
2666 	char o_do_not_cache;	/* don't cache groups from this op */
2667 	char o_is_auth_check;	/* authorization in progress */
2668 	char o_dont_replicate;
2669 	slap_access_t o_acl_priv;
2670 
2671 	char o_nocaching;
2672 	char o_delete_glue_parent;
2673 	char o_no_schema_check;
2674 #define get_no_schema_check(op)			((op)->o_no_schema_check)
2675 	char o_no_subordinate_glue;
2676 #define get_no_subordinate_glue(op)		((op)->o_no_subordinate_glue)
2677 
2678 #define SLAP_CONTROL_NONE	0
2679 #define SLAP_CONTROL_IGNORED	1
2680 #define SLAP_CONTROL_NONCRITICAL 2
2681 #define SLAP_CONTROL_CRITICAL	3
2682 #define	SLAP_CONTROL_MASK	3
2683 
2684 /* spare bits for simple flags */
2685 #define SLAP_CONTROL_SHIFT	4	/* shift to reach data bits */
2686 #define SLAP_CONTROL_DATA0	0x10
2687 #define SLAP_CONTROL_DATA1	0x20
2688 #define SLAP_CONTROL_DATA2	0x40
2689 #define SLAP_CONTROL_DATA3	0x80
2690 
2691 #define _SCM(x)	((x) & SLAP_CONTROL_MASK)
2692 
2693 	char o_ctrlflag[SLAP_MAX_CIDS];	/* per-control flags */
2694 	void **o_controls;		/* per-control state */
2695 
2696 #define o_dontUseCopy			o_ctrlflag[slap_cids.sc_dontUseCopy]
2697 #define get_dontUseCopy(op)		_SCM((op)->o_dontUseCopy)
2698 
2699 #define o_relax				o_ctrlflag[slap_cids.sc_relax]
2700 #define get_relax(op)		_SCM((op)->o_relax)
2701 
2702 #define o_managedsait	o_ctrlflag[slap_cids.sc_manageDSAit]
2703 #define get_manageDSAit(op)				_SCM((op)->o_managedsait)
2704 
2705 #define o_noop	o_ctrlflag[slap_cids.sc_noOp]
2706 #define o_proxy_authz	o_ctrlflag[slap_cids.sc_proxyAuthz]
2707 #define o_subentries	o_ctrlflag[slap_cids.sc_subentries]
2708 
2709 #define get_subentries(op)				_SCM((op)->o_subentries)
2710 #define	o_subentries_visibility	o_ctrlflag[slap_cids.sc_subentries]
2711 
2712 #define set_subentries_visibility(op)	((op)->o_subentries |= SLAP_CONTROL_DATA0)
2713 #define get_subentries_visibility(op)	(((op)->o_subentries & SLAP_CONTROL_DATA0) != 0)
2714 
2715 #define o_assert	o_ctrlflag[slap_cids.sc_assert]
2716 #define get_assert(op)					((int)(op)->o_assert)
2717 #define o_assertion	o_controls[slap_cids.sc_assert]
2718 #define get_assertion(op)				((op)->o_assertion)
2719 
2720 #define	o_valuesreturnfilter	o_ctrlflag[slap_cids.sc_valuesReturnFilter]
2721 #define o_vrFilter	o_controls[slap_cids.sc_valuesReturnFilter]
2722 
2723 #define o_permissive_modify	o_ctrlflag[slap_cids.sc_permissiveModify]
2724 #define get_permissiveModify(op)		((int)(op)->o_permissive_modify)
2725 
2726 #define o_domain_scope	o_ctrlflag[slap_cids.sc_domainScope]
2727 #define get_domainScope(op)				((int)(op)->o_domain_scope)
2728 
2729 #ifdef SLAP_CONTROL_X_TREE_DELETE
2730 #define	o_tree_delete	o_ctrlflag[slap_cids.sc_treeDelete]
2731 #define get_treeDelete(op)				((int)(op)->o_tree_delete)
2732 #endif
2733 
2734 #define o_preread	o_ctrlflag[slap_cids.sc_preRead]
2735 #define o_postread	o_ctrlflag[slap_cids.sc_postRead]
2736 
2737 #define	o_preread_attrs	o_controls[slap_cids.sc_preRead]
2738 #define o_postread_attrs	o_controls[slap_cids.sc_postRead]
2739 
2740 #define o_pagedresults	o_ctrlflag[slap_cids.sc_pagedResults]
2741 #define o_pagedresults_state	o_controls[slap_cids.sc_pagedResults]
2742 #define get_pagedresults(op)			((int)(op)->o_pagedresults)
2743 
2744 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
2745 #define o_sortedresults		o_ctrlflag[slap_cids.sc_sortedResults]
2746 #endif
2747 
2748 #ifdef LDAP_X_TXN
2749 #define o_txnSpec		o_ctrlflag[slap_cids.sc_txnSpec]
2750 #endif
2751 
2752 #ifdef SLAP_CONTROL_X_SESSION_TRACKING
2753 #define o_session_tracking	o_ctrlflag[slap_cids.sc_sessionTracking]
2754 #define o_tracked_sessions	o_controls[slap_cids.sc_sessionTracking]
2755 #define get_sessionTracking(op)			((int)(op)->o_session_tracking)
2756 #endif
2757 
2758 #ifdef SLAP_CONTROL_X_WHATFAILED
2759 #define o_whatFailed o_ctrlflag[slap_cids.sc_whatFailed]
2760 #define get_whatFailed(op)				_SCM((op)->o_whatFailed)
2761 #endif
2762 
2763 #define o_sync			o_ctrlflag[slap_cids.sc_LDAPsync]
2764 
2765 	AuthorizationInformation o_authz;
2766 
2767 	BerElement	*o_ber;		/* ber of the request */
2768 	BerElement	*o_res_ber;	/* ber of the CLDAP reply or readback control */
2769 	slap_callback *o_callback;	/* callback pointers */
2770 	LDAPControl	**o_ctrls;	 /* controls */
2771 	struct berval o_csn;
2772 
2773 	/* DEPRECATE o_private - use o_extra instead */
2774 	void	*o_private;	/* anything the backend needs */
2775 	LDAP_SLIST_HEAD(o_e, OpExtra) o_extra;	/* anything the backend needs */
2776 
2777 	LDAP_STAILQ_ENTRY(Operation)	o_next;	/* next operation in list */
2778 };
2779 
2780 typedef struct OperationBuffer {
2781 	Operation	ob_op;
2782 	Opheader	ob_hdr;
2783 	void		*ob_controls[SLAP_MAX_CIDS];
2784 } OperationBuffer;
2785 
2786 #define send_ldap_error( op, rs, err, text ) do { \
2787 		(rs)->sr_err = err; (rs)->sr_text = text; \
2788 		((op)->o_conn->c_send_ldap_result)( op, rs ); \
2789 	} while (0)
2790 #define send_ldap_discon( op, rs, err, text ) do { \
2791 		(rs)->sr_err = err; (rs)->sr_text = text; \
2792 		send_ldap_disconnect( op, rs ); \
2793 	} while (0)
2794 
2795 typedef void (SEND_LDAP_RESULT)(
2796 	Operation *op, SlapReply *rs);
2797 typedef int (SEND_SEARCH_ENTRY)(
2798 	Operation *op, SlapReply *rs);
2799 typedef int (SEND_SEARCH_REFERENCE)(
2800 	Operation *op, SlapReply *rs);
2801 typedef void (SEND_LDAP_EXTENDED)(
2802 	Operation *op, SlapReply *rs);
2803 typedef void (SEND_LDAP_INTERMEDIATE)(
2804 	Operation *op, SlapReply *rs);
2805 
2806 #define send_ldap_result( op, rs ) \
2807 	((op)->o_conn->c_send_ldap_result)( op, rs )
2808 #define send_search_entry( op, rs ) \
2809 	((op)->o_conn->c_send_search_entry)( op, rs )
2810 #define send_search_reference( op, rs ) \
2811 	((op)->o_conn->c_send_search_reference)( op, rs )
2812 #define send_ldap_extended( op, rs ) \
2813 	((op)->o_conn->c_send_ldap_extended)( op, rs )
2814 #define send_ldap_intermediate( op, rs ) \
2815 	((op)->o_conn->c_send_ldap_intermediate)( op, rs )
2816 
2817 typedef struct Listener Listener;
2818 
2819 /*
2820  * represents a connection from an ldap client
2821  */
2822 /* structure state (protected by connections_mutex) */
2823 enum sc_struct_state {
2824 	SLAP_C_UNINITIALIZED = 0,	/* MUST BE ZERO (0) */
2825 	SLAP_C_UNUSED,
2826 	SLAP_C_USED,
2827 	SLAP_C_PENDING
2828 };
2829 
2830 /* connection state (protected by c_mutex ) */
2831 enum sc_conn_state {
2832 	SLAP_C_INVALID = 0,		/* MUST BE ZERO (0) */
2833 	SLAP_C_INACTIVE,		/* zero threads */
2834 	SLAP_C_CLOSING,			/* closing */
2835 	SLAP_C_ACTIVE,			/* one or more threads */
2836 	SLAP_C_BINDING,			/* binding */
2837 	SLAP_C_CLIENT			/* outbound client conn */
2838 };
2839 struct Connection {
2840 	enum sc_struct_state	c_struct_state; /* structure management state */
2841 	enum sc_conn_state	c_conn_state;	/* connection state */
2842 	int			c_conn_idx;		/* slot in connections array */
2843 	ber_socket_t	c_sd;
2844 	const char	*c_close_reason; /* why connection is closing */
2845 
2846 	ldap_pvt_thread_mutex_t	c_mutex; /* protect the connection */
2847 	Sockbuf		*c_sb;			/* ber connection stuff		  */
2848 
2849 	/* only can be changed by connect_init */
2850 	time_t		c_starttime;	/* when the connection was opened */
2851 	time_t		c_activitytime;	/* when the connection was last used */
2852 	unsigned long		c_connid;	/* id of this connection for stats*/
2853 
2854 	struct berval	c_peer_domain;	/* DNS name of client */
2855 	struct berval	c_peer_name;	/* peer name (trans=addr:port) */
2856 	Listener	*c_listener;
2857 #define c_listener_url c_listener->sl_url	/* listener URL */
2858 #define c_sock_name c_listener->sl_name	/* sock name (trans=addr:port) */
2859 
2860 	/* only can be changed by binding thread */
2861 	struct berval	c_sasl_bind_mech;			/* mech in progress */
2862 	struct berval	c_sasl_dn;	/* temporary storage */
2863 	struct berval	c_sasl_authz_dn;	/* SASL proxy authz */
2864 
2865 	/* authorization backend */
2866 	Backend *c_authz_backend;
2867 	void	*c_authz_cookie;
2868 #define SLAP_IS_AUTHZ_BACKEND( op )	\
2869 	( (op)->o_bd != NULL \
2870 		&& (op)->o_bd->be_private != NULL \
2871 		&& (op)->o_conn != NULL \
2872 		&& (op)->o_conn->c_authz_backend != NULL \
2873 		&& ( (op)->o_bd->be_private == (op)->o_conn->c_authz_backend->be_private \
2874 			|| (op)->o_bd->be_private == (op)->o_conn->c_authz_cookie ) )
2875 
2876 	AuthorizationInformation c_authz;
2877 
2878 	ber_int_t	c_protocol;	/* version of the LDAP protocol used by client */
2879 
2880 	LDAP_STAILQ_HEAD(c_o, Operation) c_ops;	/* list of operations being processed */
2881 	LDAP_STAILQ_HEAD(c_po, Operation) c_pending_ops;	/* list of pending operations */
2882 
2883 	ldap_pvt_thread_mutex_t	c_write1_mutex;	/* only one pdu written at a time */
2884 	ldap_pvt_thread_cond_t	c_write1_cv;	/* only one pdu written at a time */
2885 	ldap_pvt_thread_mutex_t	c_write2_mutex;	/* used to wait for sd write-ready */
2886 	ldap_pvt_thread_cond_t	c_write2_cv;	/* used to wait for sd write-ready*/
2887 
2888 	BerElement	*c_currentber;	/* ber we're attempting to read */
2889 	int			c_writers;		/* number of writers waiting */
2890 	char		c_writing;		/* someone is writing */
2891 
2892 	char		c_sasl_bind_in_progress;	/* multi-op bind in progress */
2893 	char		c_writewaiter;	/* true if blocked on write */
2894 
2895 
2896 #define	CONN_IS_TLS	1
2897 #define	CONN_IS_UDP	2
2898 #define	CONN_IS_CLIENT	4
2899 #define	CONN_IS_IPC	8
2900 
2901 #ifdef LDAP_CONNECTIONLESS
2902 	char	c_is_udp;		/* true if this is (C)LDAP over UDP */
2903 #endif
2904 #ifdef HAVE_TLS
2905 	char	c_is_tls;		/* true if this LDAP over raw TLS */
2906 	char	c_needs_tls_accept;	/* true if SSL_accept should be called */
2907 #endif
2908 	char	c_sasl_layers;	 /* true if we need to install SASL i/o handlers */
2909 	char	c_sasl_done;		/* SASL completed once */
2910 	void	*c_sasl_authctx;	/* SASL authentication context */
2911 	void	*c_sasl_sockctx;	/* SASL security layer context */
2912 	void	*c_sasl_extra;		/* SASL session extra stuff */
2913 	Operation	*c_sasl_bindop;	/* set to current op if it's a bind */
2914 
2915 #ifdef LDAP_X_TXN
2916 #define CONN_TXN_INACTIVE 0
2917 #define CONN_TXN_SPECIFY 1
2918 #define CONN_TXN_SETTLE -1
2919 	int c_txn;
2920 
2921 	Backend *c_txn_backend;
2922 	LDAP_STAILQ_HEAD(c_to, Operation) c_txn_ops; /* list of operations in txn */
2923 #endif
2924 
2925 	PagedResultsState c_pagedresults_state; /* paged result state */
2926 
2927 	long	c_n_ops_received;	/* num of ops received (next op_id) */
2928 	long	c_n_ops_executing;	/* num of ops currently executing */
2929 	long	c_n_ops_pending;	/* num of ops pending execution */
2930 	long	c_n_ops_completed;	/* num of ops completed */
2931 
2932 	long	c_n_get;		/* num of get calls */
2933 	long	c_n_read;		/* num of read calls */
2934 	long	c_n_write;		/* num of write calls */
2935 
2936 	void	*c_extensions;		/* Netscape plugin */
2937 
2938 	/*
2939 	 * Client connection handling
2940 	 */
2941 	ldap_pvt_thread_start_t	*c_clientfunc;
2942 	void	*c_clientarg;
2943 
2944 	/*
2945 	 * These are the "callbacks" that are available for back-ends to
2946 	 * supply data back to connected clients that are connected
2947 	 * through the "front-end".
2948 	 */
2949 	SEND_LDAP_RESULT *c_send_ldap_result;
2950 	SEND_SEARCH_ENTRY *c_send_search_entry;
2951 	SEND_SEARCH_REFERENCE *c_send_search_reference;
2952 	SEND_LDAP_EXTENDED *c_send_ldap_extended;
2953 	SEND_LDAP_INTERMEDIATE *c_send_ldap_intermediate;
2954 };
2955 
2956 #ifdef LDAP_DEBUG
2957 #ifdef LDAP_SYSLOG
2958 #ifdef LOG_LOCAL4
2959 #define SLAP_DEFAULT_SYSLOG_USER	LOG_LOCAL4
2960 #endif /* LOG_LOCAL4 */
2961 
2962 #define Statslog( level, fmt, connid, opid, arg1, arg2, arg3 )	\
2963 	Log5( (level), ldap_syslog_level, (fmt), (connid), (opid), (arg1), (arg2), (arg3) )
2964 #define StatslogTest( level ) ((ldap_debug | ldap_syslog) & (level))
2965 #else /* !LDAP_SYSLOG */
2966 #define Statslog( level, fmt, connid, opid, arg1, arg2, arg3 )	\
2967 	do { \
2968 		if ( ldap_debug & (level) ) \
2969 			lutil_debug( ldap_debug, (level), (fmt), (connid), (opid), (arg1), (arg2), (arg3) );\
2970 	} while (0)
2971 #define StatslogTest( level ) (ldap_debug & (level))
2972 #endif /* !LDAP_SYSLOG */
2973 #else /* !LDAP_DEBUG */
2974 #define Statslog( level, fmt, connid, opid, arg1, arg2, arg3 ) ((void) 0)
2975 #define StatslogTest( level ) (0)
2976 #endif /* !LDAP_DEBUG */
2977 
2978 /*
2979  * listener; need to access it from monitor backend
2980  */
2981 struct Listener {
2982 	struct berval sl_url;
2983 	struct berval sl_name;
2984 	mode_t	sl_perms;
2985 #ifdef HAVE_TLS
2986 	int		sl_is_tls;
2987 #endif
2988 #ifdef LDAP_CONNECTIONLESS
2989 	int	sl_is_udp;		/* UDP listener is also data port */
2990 #endif
2991 	int	sl_mute;	/* Listener is temporarily disabled due to emfile */
2992 	int	sl_busy;	/* Listener is busy (accept thread activated) */
2993 	ber_socket_t sl_sd;
2994 	Sockaddr sl_sa;
2995 #define sl_addr	sl_sa.sa_in_addr
2996 #ifdef LDAP_DEVEL
2997 #define LDAP_TCP_BUFFER
2998 #endif
2999 #ifdef LDAP_TCP_BUFFER
3000 	int	sl_tcp_rmem;	/* custom TCP read buffer size */
3001 	int	sl_tcp_wmem;	/* custom TCP write buffer size */
3002 #endif
3003 };
3004 
3005 /*
3006  * Better know these all around slapd
3007  */
3008 #define SLAP_LDAPDN_PRETTY 0x1
3009 #define SLAP_LDAPDN_MAXLEN 8192
3010 
3011 /* number of response controls supported */
3012 #define SLAP_MAX_RESPONSE_CONTROLS   6
3013 
3014 #ifdef SLAP_SCHEMA_EXPOSE
3015 #define SLAP_CTRL_HIDE				0x00000000U
3016 #else
3017 #define SLAP_CTRL_HIDE				0x80000000U
3018 #endif
3019 
3020 #define SLAP_CTRL_REQUIRES_ROOT		0x40000000U /* for Relax */
3021 
3022 #define SLAP_CTRL_GLOBAL			0x00800000U
3023 #define SLAP_CTRL_GLOBAL_SEARCH		0x00010000U	/* for NOOP */
3024 
3025 #define SLAP_CTRL_OPFLAGS			0x0000FFFFU
3026 #define SLAP_CTRL_ABANDON			0x00000001U
3027 #define SLAP_CTRL_ADD				0x00002002U
3028 #define SLAP_CTRL_BIND				0x00000004U
3029 #define SLAP_CTRL_COMPARE			0x00001008U
3030 #define SLAP_CTRL_DELETE			0x00002010U
3031 #define SLAP_CTRL_MODIFY			0x00002020U
3032 #define SLAP_CTRL_RENAME			0x00002040U
3033 #define SLAP_CTRL_SEARCH			0x00001080U
3034 #define SLAP_CTRL_UNBIND			0x00000100U
3035 
3036 #define SLAP_CTRL_INTROGATE	(SLAP_CTRL_COMPARE|SLAP_CTRL_SEARCH)
3037 #define SLAP_CTRL_UPDATE \
3038 	(SLAP_CTRL_ADD|SLAP_CTRL_DELETE|SLAP_CTRL_MODIFY|SLAP_CTRL_RENAME)
3039 #define SLAP_CTRL_ACCESS	(SLAP_CTRL_INTROGATE|SLAP_CTRL_UPDATE)
3040 
3041 typedef int (SLAP_CTRL_PARSE_FN) LDAP_P((
3042 	Operation *op,
3043 	SlapReply *rs,
3044 	LDAPControl *ctrl ));
3045 
3046 typedef int (*SLAP_ENTRY_INFO_FN) LDAP_P(( void *arg, Entry *e ));
3047 
3048 #define SLAP_SLAB_SIZE	(1024*1024)
3049 #define SLAP_SLAB_STACK 1
3050 
3051 #define SLAP_ZONE_ALLOC 1
3052 #undef SLAP_ZONE_ALLOC
3053 
3054 #ifdef LDAP_COMP_MATCH
3055 /*
3056  * Extensible Filter Definition
3057  *
3058  * MatchingRuleAssertion := SEQUENCE {
3059  *	matchingRule	[1] MatchingRuleId OPTIONAL,
3060  *	type		[2] AttributeDescription OPTIONAL,
3061  *	matchValue	[3] AssertionValue,
3062  *	dnAttributes	[4] BOOLEAN DEFAULT FALSE }
3063  *
3064  * Following ComponentFilter is contained in matchValue
3065  *
3066  * ComponentAssertion ::= SEQUENCE {
3067  *	component		ComponentReference (SIZE(1..MAX)) OPTIONAL
3068  *	useDefaultValues	BOOLEAN DEFAULT TRUE,
3069  *	rule			MATCHING-RULE.&id,
3070  *	value			MATCHING-RULE.&AssertionType }
3071  *
3072  * ComponentFilter ::= CHOICE {
3073  *	item	[0] ComponentAssertion,
3074  *	and	[1] SEQUENCE OF ComponentFilter,
3075  *	or	[2] SEQUENCE OF ComponentFilter,
3076  *	not	[3] ComponentFilter }
3077  */
3078 
3079 #define LDAP_COMPREF_IDENTIFIER		((ber_tag_t) 0x80U)
3080 #define LDAP_COMPREF_FROM_BEGINNING	((ber_tag_t) 0x81U)
3081 #define LDAP_COMPREF_COUNT		((ber_tag_t) 0x82U)
3082 #define LDAP_COMPREF_FROM_END		((ber_tag_t) 0x83U)
3083 #define LDAP_COMPREF_CONTENT		((ber_tag_t) 0x84U)
3084 #define LDAP_COMPREF_SELECT		((ber_tag_t) 0x85U)
3085 #define LDAP_COMPREF_ALL		((ber_tag_t) 0x86U)
3086 #define LDAP_COMPREF_DEFINED		((ber_tag_t) 0x87U)
3087 #define LDAP_COMPREF_UNDEFINED		((ber_tag_t) 0x88U)
3088 
3089 #define LDAP_COMP_FILTER_AND		((ber_tag_t) 0xa0U)
3090 #define LDAP_COMP_FILTER_OR		((ber_tag_t) 0xa1U)
3091 #define LDAP_COMP_FILTER_NOT		((ber_tag_t) 0xa2U)
3092 #define LDAP_COMP_FILTER_ITEM		((ber_tag_t) 0xa3U)
3093 #define LDAP_COMP_FILTER_UNDEFINED	((ber_tag_t) 0xa4U)
3094 
3095 typedef struct ComponentId ComponentId;
3096 typedef struct ComponentReference ComponentReference;
3097 typedef struct ComponentAssertion ComponentAssertion;
3098 typedef struct ComponentAssertionValue ComponentAssertionValue;
3099 typedef struct ComponentSyntaxInfo ComponentSyntaxInfo;
3100 typedef struct ComponentDesc ComponentDesc;
3101 
3102 struct ComponentData {
3103 	void			*cd_mem_op;	/* nibble memory handler */
3104 	ComponentSyntaxInfo**	cd_tree;	/* component tree */
3105 };
3106 
3107 struct ComponentId {
3108 	int		ci_type;
3109 	ComponentId	*ci_next;
3110 
3111 	union comp_id_value{
3112 		BerValue	ci_identifier;
3113 		ber_int_t	ci_from_beginning;
3114 		ber_int_t	ci_count;
3115 		ber_int_t	ci_from_end;
3116 		ber_int_t	ci_content;
3117 		BerValue	ci_select_value;
3118 		char		ci_all;
3119 	} ci_val;
3120 };
3121 
3122 struct ComponentReference {
3123 	ComponentId	*cr_list;
3124 	ComponentId	*cr_curr;
3125 	struct berval	cr_string;
3126 	int cr_len;
3127 	/* Component Indexing */
3128 	int		cr_asn_type_id;
3129 	slap_mask_t	cr_indexmask;
3130 	AttributeDescription* cr_ad;
3131 	BerVarray	cr_nvals;
3132 	ComponentReference* cr_next;
3133 };
3134 
3135 struct ComponentAssertion {
3136 	ComponentReference	*ca_comp_ref;
3137 	ber_int_t		ca_use_def;
3138 	MatchingRule		*ca_ma_rule;
3139 	struct berval		ca_ma_value;
3140 	ComponentData		ca_comp_data; /* componentized assertion */
3141 	ComponentFilter		*ca_cf;
3142 	MatchingRuleAssertion   *ca_mra;
3143 };
3144 
3145 struct ComponentFilter {
3146 	ber_tag_t	cf_choice;
3147 	union cf_un_u {
3148 		ber_int_t		cf_un_result;
3149 		ComponentAssertion	*cf_un_ca;
3150 		ComponentFilter		*cf_un_complex;
3151 	} cf_un;
3152 
3153 #define cf_ca		cf_un.cf_un_ca
3154 #define cf_result	cf_un.cf_un_result
3155 #define cf_and		cf_un.cf_un_complex
3156 #define cf_or		cf_un.cf_un_complex
3157 #define cf_not		cf_un.cf_un_complex
3158 #define cf_any		cf_un.cf_un_complex
3159 
3160 	ComponentFilter	*cf_next;
3161 };
3162 
3163 struct ComponentAssertionValue {
3164 	char* cav_buf;
3165 	char* cav_ptr;
3166 	char* cav_end;
3167 };
3168 
3169 typedef int encoder_func LDAP_P((
3170 	void* b,
3171 	void* comp));
3172 
3173 typedef int gser_decoder_func LDAP_P((
3174 	void* mem_op,
3175 	void* b,
3176 	ComponentSyntaxInfo** comp_syn_info,
3177 	int* len,
3178 	int mode));
3179 
3180 typedef int comp_free_func LDAP_P((
3181 	void* b));
3182 
3183 typedef int ber_decoder_func LDAP_P((
3184 	void* mem_op,
3185 	void* b,
3186 	int tag,
3187 	int elmtLen,
3188 	ComponentSyntaxInfo* comp_syn_info,
3189 	int* len,
3190 	int mode));
3191 
3192 typedef int ber_tag_decoder_func LDAP_P((
3193 	void* mem_op,
3194 	void* b,
3195 	ComponentSyntaxInfo* comp_syn_info,
3196 	int* len,
3197 	int mode));
3198 
3199 typedef void* extract_component_from_id_func LDAP_P((
3200 	void* mem_op,
3201 	ComponentReference* cr,
3202 	void* comp ));
3203 
3204 typedef void* convert_attr_to_comp_func LDAP_P ((
3205         Attribute* a,
3206 	Syntax* syn,
3207         struct berval* bv ));
3208 
3209 typedef void* alloc_nibble_func LDAP_P ((
3210 	int initial_size,
3211 	int increment_size ));
3212 
3213 typedef void free_nibble_func LDAP_P ((
3214 	void* nm ));
3215 
3216 typedef void convert_assert_to_comp_func LDAP_P ((
3217 	void *mem_op,
3218         ComponentSyntaxInfo* csi_attr,
3219         struct berval* bv,
3220         ComponentSyntaxInfo** csi,
3221         int* len,
3222         int mode ));
3223 
3224 typedef int convert_asn_to_ldap_func LDAP_P ((
3225         ComponentSyntaxInfo* csi,
3226         struct berval *bv ));
3227 
3228 typedef void free_component_func LDAP_P ((
3229         void* mem_op));
3230 
3231 typedef int test_component_func LDAP_P ((
3232 	void* attr_mem_op,
3233 	void* assert_mem_op,
3234         ComponentSyntaxInfo* csi,
3235 	ComponentAssertion* ca));
3236 
3237 typedef void* test_membership_func LDAP_P ((
3238 	void* in ));
3239 
3240 typedef void* get_component_info_func LDAP_P ((
3241 	int in ));
3242 
3243 typedef int component_encoder_func LDAP_P ((
3244 	void* mem_op,
3245 	ComponentSyntaxInfo* csi,
3246 	struct berval* nvals ));
3247 
3248 typedef int allcomponent_matching_func LDAP_P((
3249 	char* oid,
3250 	ComponentSyntaxInfo* comp1,
3251 	ComponentSyntaxInfo* comp));
3252 
3253 struct ComponentDesc {
3254 	/* Don't change the order of following four fields */
3255 	int				cd_tag;
3256 	AttributeType			*cd_comp_type;
3257 	struct berval			cd_ad_type;	/* ad_type, ad_cname */
3258 	struct berval			cd_ad_cname;	/* ad_type, ad_cname */
3259 	unsigned			cd_flags;	/* ad_flags */
3260 	int				cd_type;
3261 	int				cd_type_id;
3262 	encoder_func			*cd_ldap_encoder;
3263 	encoder_func			*cd_gser_encoder;
3264 	encoder_func			*cd_ber_encoder;
3265 	gser_decoder_func		*cd_gser_decoder;
3266 	ber_decoder_func		*cd_ber_decoder;
3267 	comp_free_func			*cd_free;
3268 	extract_component_from_id_func*  cd_extract_i;
3269 	allcomponent_matching_func	*cd_all_match;
3270 };
3271 
3272 struct ComponentSyntaxInfo {
3273 	Syntax		*csi_syntax;
3274 	ComponentDesc	*csi_comp_desc;
3275 };
3276 
3277 #endif /* LDAP_COMP_MATCH */
3278 
3279 #ifdef SLAP_ZONE_ALLOC
3280 #define SLAP_ZONE_SIZE 0x80000		/* 512KB */
3281 #define SLAP_ZONE_SHIFT 19
3282 #define SLAP_ZONE_INITSIZE 0x800000 /* 8MB */
3283 #define SLAP_ZONE_MAXSIZE 0x80000000/* 2GB */
3284 #define SLAP_ZONE_DELTA 0x800000	/* 8MB */
3285 #define SLAP_ZONE_ZOBLOCK 256
3286 
3287 struct zone_object {
3288 	void *zo_ptr;
3289 	int zo_siz;
3290 	int zo_idx;
3291 	int zo_blockhead;
3292 	LDAP_LIST_ENTRY(zone_object) zo_link;
3293 };
3294 
3295 struct zone_latency_history {
3296 	double zlh_latency;
3297 	LDAP_STAILQ_ENTRY(zone_latency_history) zlh_next;
3298 };
3299 
3300 struct zone_heap {
3301 	int zh_fd;
3302 	int zh_zonesize;
3303 	int zh_zoneorder;
3304 	int zh_numzones;
3305 	int zh_maxzones;
3306 	int zh_deltazones;
3307 	void **zh_zones;
3308 	ldap_pvt_thread_rdwr_t *zh_znlock;
3309 	Avlnode *zh_zonetree;
3310 	unsigned char ***zh_maps;
3311 	int *zh_seqno;
3312 	LDAP_LIST_HEAD( zh_freelist, zone_object ) *zh_free;
3313 	LDAP_LIST_HEAD( zh_so, zone_object ) zh_zopool;
3314 	ldap_pvt_thread_mutex_t zh_mutex;
3315 	ldap_pvt_thread_rdwr_t zh_lock;
3316 	double zh_ema_latency;
3317 	unsigned long zh_ema_samples;
3318 	LDAP_STAILQ_HEAD( zh_latency_history, zone_latency_history )
3319 				zh_latency_history_queue;
3320 	int zh_latency_history_qlen;
3321 	int zh_latency_jump;
3322 	int zh_swapping;
3323 };
3324 #endif
3325 
3326 #define SLAP_BACKEND_INIT_MODULE(b) \
3327 	static BackendInfo bi;	\
3328 	int \
3329 	init_module( int argc, char *argv[] ) \
3330 	{ \
3331 		bi.bi_type = #b ; \
3332 		bi.bi_init = b ## _back_initialize; \
3333 		backend_add( &bi ); \
3334 		return 0; \
3335 	}
3336 
3337 typedef int (OV_init)(void);
3338 typedef struct slap_oinit_t {
3339 	const char	*ov_type;
3340 	OV_init		*ov_init;
3341 } OverlayInit;
3342 
3343 LDAP_END_DECL
3344 
3345 #include "proto-slap.h"
3346 
3347 #endif /* _SLAP_H_ */
3348