From c000cad09d0b54c455c99271bfb996c2dfe13073 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:23:53 +0200
Subject: Adding upstream version 2.4.47+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 servers/slapd/back-mdb/back-mdb.h | 206 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 206 insertions(+)
 create mode 100644 servers/slapd/back-mdb/back-mdb.h

(limited to 'servers/slapd/back-mdb/back-mdb.h')

diff --git a/servers/slapd/back-mdb/back-mdb.h b/servers/slapd/back-mdb/back-mdb.h
new file mode 100644
index 0000000..b271069
--- /dev/null
+++ b/servers/slapd/back-mdb/back-mdb.h
@@ -0,0 +1,206 @@
+/* back-mdb.h - mdb back-end header file */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2018 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#ifndef _BACK_MDB_H_
+#define _BACK_MDB_H_
+
+#include <portable.h>
+#include "slap.h"
+#include "lmdb.h"
+
+LDAP_BEGIN_DECL
+
+#undef MDB_TOOL_IDL_CACHING	/* currently broken */
+
+#define DN_BASE_PREFIX		SLAP_INDEX_EQUALITY_PREFIX
+#define DN_ONE_PREFIX	 	'%'
+#define DN_SUBTREE_PREFIX 	'@'
+
+#define MDB_AD2ID		0
+#define MDB_DN2ID		1
+#define MDB_ID2ENTRY	2
+#define MDB_NDB			3
+
+/* The default search IDL stack cache depth */
+#define DEFAULT_SEARCH_STACK_DEPTH	16
+
+/* The minimum we can function with */
+#define MINIMUM_SEARCH_STACK_DEPTH	8
+
+#define MDB_INDICES		128
+
+#define	MDB_MAXADS	65536
+
+/* Default to 10MB max */
+#define DEFAULT_MAPSIZE	(10*1048576)
+
+/* Most users will never see this */
+#define DEFAULT_RTXN_SIZE      10000
+
+#ifdef LDAP_DEVEL
+#define MDB_MONITOR_IDX
+#endif /* LDAP_DEVEL */
+
+typedef struct mdb_monitor_t {
+	void		*mdm_cb;
+	struct berval	mdm_ndn;
+} mdb_monitor_t;
+
+/* From ldap_rq.h */
+struct re_s;
+
+struct mdb_info {
+	MDB_env		*mi_dbenv;
+
+	/* DB_ENV parameters */
+	/* The DB_ENV can be tuned via DB_CONFIG */
+	char		*mi_dbenv_home;
+	uint32_t	mi_dbenv_flags;
+	int			mi_dbenv_mode;
+
+	size_t		mi_mapsize;
+	ID			mi_nextid;
+
+	slap_mask_t	mi_defaultmask;
+	int			mi_nattrs;
+	struct mdb_attrinfo		**mi_attrs;
+	void		*mi_search_stack;
+	int			mi_search_stack_depth;
+	int			mi_readers;
+
+	uint32_t	mi_rtxn_size;
+	int			mi_txn_cp;
+	uint32_t	mi_txn_cp_min;
+	uint32_t	mi_txn_cp_kbyte;
+	struct re_s		*mi_txn_cp_task;
+	struct re_s		*mi_index_task;
+
+	mdb_monitor_t	mi_monitor;
+
+#ifdef MDB_MONITOR_IDX
+	ldap_pvt_thread_mutex_t	mi_idx_mutex;
+	Avlnode		*mi_idx;
+#endif /* MDB_MONITOR_IDX */
+
+	int		mi_flags;
+#define	MDB_IS_OPEN		0x01
+#define	MDB_OPEN_INDEX	0x02
+#define	MDB_DEL_INDEX	0x08
+#define	MDB_RE_OPEN		0x10
+#define	MDB_NEED_UPGRADE	0x20
+
+	int mi_numads;
+
+	MDB_dbi	mi_dbis[MDB_NDB];
+	AttributeDescription *mi_ads[MDB_MAXADS];
+	int mi_adxs[MDB_MAXADS];
+};
+
+#define mi_id2entry	mi_dbis[MDB_ID2ENTRY]
+#define mi_dn2id	mi_dbis[MDB_DN2ID]
+#define mi_ad2id	mi_dbis[MDB_AD2ID]
+
+typedef struct mdb_op_info {
+	OpExtra		moi_oe;
+	MDB_txn*	moi_txn;
+	int			moi_ref;
+	char		moi_flag;
+} mdb_op_info;
+#define MOI_READER	0x01
+#define MOI_FREEIT	0x02
+
+/* Copy an ID "src" to pointer "dst" in big-endian byte order */
+#define MDB_ID2DISK( src, dst )	\
+	do { int i0; ID tmp; unsigned char *_p;	\
+		tmp = (src); _p = (unsigned char *)(dst);	\
+		for ( i0=sizeof(ID)-1; i0>=0; i0-- ) {	\
+			_p[i0] = tmp & 0xff; tmp >>= 8;	\
+		} \
+	} while(0)
+
+/* Copy a pointer "src" to a pointer "dst" from big-endian to native order */
+#define MDB_DISK2ID( src, dst ) \
+	do { unsigned i0; ID tmp = 0; unsigned char *_p;	\
+		_p = (unsigned char *)(src);	\
+		for ( i0=0; i0<sizeof(ID); i0++ ) {	\
+			tmp <<= 8; tmp |= *_p++;	\
+		} *(dst) = tmp; \
+	} while (0)
+
+LDAP_END_DECL
+
+/* for the cache of attribute information (which are indexed, etc.) */
+typedef struct mdb_attrinfo {
+	AttributeDescription *ai_desc; /* attribute description cn;lang-en */
+	slap_mask_t ai_indexmask;	/* how the attr is indexed	*/
+	slap_mask_t ai_newmask;	/* new settings to replace old mask */
+#ifdef LDAP_COMP_MATCH
+	ComponentReference* ai_cr; /*component indexing*/
+#endif
+	Avlnode *ai_root;		/* for tools */
+	void *ai_flist;		/* for tools */
+	void *ai_clist;		/* for tools */
+	MDB_cursor *ai_cursor;	/* for tools */
+	int ai_idx;	/* position in AI array */
+	MDB_dbi ai_dbi;
+} AttrInfo;
+
+/* These flags must not clash with SLAP_INDEX flags or ops in slap.h! */
+#define	MDB_INDEX_DELETING	0x8000U	/* index is being modified */
+#define	MDB_INDEX_UPDATE_OP	0x03	/* performing an index update */
+
+/* For slapindex to record which attrs in an entry belong to which
+ * index database 
+ */
+typedef struct AttrList {
+	struct AttrList *next;
+	Attribute *attr;
+} AttrList;
+
+#ifndef CACHELINE
+#define CACHELINE	64
+#endif
+
+#if defined(__i386) || defined(__x86_64)
+#define MISALIGNED_OK	1
+#else
+#define	ALIGNER	(sizeof(size_t)-1)
+#endif
+
+typedef struct IndexRbody {
+	AttrInfo *ai;
+	AttrList *attrs;
+	void *tptr;
+	int i;
+} IndexRbody;
+
+typedef struct IndexRec {
+	union {
+		IndexRbody irb;
+#define ir_ai	iru.irb.ai
+#define ir_attrs	iru.irb.attrs
+#define ir_tptr	iru.irb.tptr
+#define ir_i	iru.irb.i
+		/* cache line alignment */
+		char pad[(sizeof(IndexRbody)+CACHELINE-1) & (!CACHELINE-1)];
+	} iru;
+} IndexRec;
+
+#define MAXRDNS	SLAP_LDAPDN_MAXLEN/4
+
+#include "proto-mdb.h"
+
+#endif /* _BACK_MDB_H_ */
-- 
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