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