X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fback-bdb%2Fsearch.c;h=520d44a5c4e0cf3f0fcd6089442aedf4db301456;hb=0ac9b952c59d045f7cbc2d7f00282f365a98c9cd;hp=df7ce17dd2e03f7694ee4364dcdad70ae9f51af9;hpb=02412251f15514b747c468d2a78b7648367a967f;p=openldap
diff --git a/servers/slapd/back-bdb/search.c b/servers/slapd/back-bdb/search.c
index df7ce17dd2..520d44a5c4 100644
--- a/servers/slapd/back-bdb/search.c
+++ b/servers/slapd/back-bdb/search.c
@@ -1,8 +1,17 @@
/* search.c - search operation */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software .
+ *
+ * Copyright 2000-2007 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
+ * .
*/
#include "portable.h"
@@ -12,330 +21,714 @@
#include "back-bdb.h"
#include "idl.h"
-#include "external.h"
static int base_candidate(
BackendDB *be,
Entry *e,
ID *ids );
+
static int search_candidates(
- BackendDB *be,
Operation *op,
+ SlapReply *rs,
Entry *e,
- Filter *filter,
- int scope,
- int deref,
- ID *ids );
+ u_int32_t locker,
+ ID *ids,
+ ID *scopes );
+
+static int parse_paged_cookie( Operation *op, SlapReply *rs );
+
+static void send_paged_response(
+ Operation *op,
+ SlapReply *rs,
+ ID *lastid,
+ int tentries );
+
+/* Dereference aliases for a single alias entry. Return the final
+ * dereferenced entry on success, NULL on any failure.
+ */
+static Entry * deref_base (
+ Operation *op,
+ SlapReply *rs,
+ Entry *e,
+ Entry **matched,
+ u_int32_t locker,
+ DB_LOCK *lock,
+ ID *tmp,
+ ID *visited )
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ struct berval ndn;
+ EntryInfo *ei;
+ DB_LOCK lockr;
+
+ rs->sr_err = LDAP_ALIAS_DEREF_PROBLEM;
+ rs->sr_text = "maximum deref depth exceeded";
+
+ for (;;) {
+ /* Remember the last entry we looked at, so we can
+ * report broken links
+ */
+ *matched = e;
+
+ if (BDB_IDL_N(tmp) >= op->o_bd->be_max_deref_depth) {
+ e = NULL;
+ break;
+ }
+
+ /* If this is part of a subtree or onelevel search,
+ * have we seen this ID before? If so, quit.
+ */
+ if ( visited && bdb_idl_insert( visited, e->e_id ) ) {
+ e = NULL;
+ break;
+ }
+
+ /* If we've seen this ID during this deref iteration,
+ * we've hit a loop.
+ */
+ if ( bdb_idl_insert( tmp, e->e_id ) ) {
+ rs->sr_err = LDAP_ALIAS_PROBLEM;
+ rs->sr_text = "circular alias";
+ e = NULL;
+ break;
+ }
+
+ /* If there was a problem getting the aliasedObjectName,
+ * get_alias_dn will have set the error status.
+ */
+ if ( get_alias_dn(e, &ndn, &rs->sr_err, &rs->sr_text) ) {
+ e = NULL;
+ break;
+ }
+
+ rs->sr_err = bdb_dn2entry( op, NULL, &ndn, &ei,
+ 0, locker, &lockr );
+
+ if ( ei ) {
+ e = ei->bei_e;
+ } else {
+ e = NULL;
+ }
+
+ if (!e) {
+ rs->sr_err = LDAP_ALIAS_PROBLEM;
+ rs->sr_text = "aliasedObject not found";
+ break;
+ }
+
+ /* Free the previous entry, continue to work with the
+ * one we just retrieved.
+ */
+ bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache,
+ *matched, lock);
+ *lock = lockr;
+
+ /* We found a regular entry. Return this to the caller. The
+ * entry is still locked for Read.
+ */
+ if (!is_entry_alias(e)) {
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_text = NULL;
+ break;
+ }
+ }
+ return e;
+}
+
+/* Look for and dereference all aliases within the search scope. Adds
+ * the dereferenced entries to the "ids" list. Requires "stack" to be
+ * able to hold 8 levels of DB_SIZE IDLs. Of course we're hardcoded to
+ * require a minimum of 8 UM_SIZE IDLs so this is never a problem.
+ */
+static int search_aliases(
+ Operation *op,
+ SlapReply *rs,
+ Entry *e,
+ u_int32_t locker,
+ ID *ids,
+ ID *scopes,
+ ID *stack )
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ ID *aliases, *curscop, *subscop, *visited, *newsubs, *oldsubs, *tmp;
+ ID cursora, ida, cursoro, ido, *subscop2;
+ Entry *matched, *a;
+ EntryInfo *ei;
+ struct berval bv_alias = BER_BVC( "alias" );
+#ifdef LDAP_COMP_MATCH
+ AttributeAssertion aa_alias = { NULL, BER_BVNULL, NULL };
+#else
+ AttributeAssertion aa_alias = { NULL, BER_BVNULL };
+#endif
+ Filter af;
+ DB_LOCK locka, lockr;
+ int first = 1;
+
+ aliases = stack; /* IDL of all aliases in the database */
+ curscop = aliases + BDB_IDL_DB_SIZE; /* Aliases in the current scope */
+ subscop = curscop + BDB_IDL_DB_SIZE; /* The current scope */
+ visited = subscop + BDB_IDL_DB_SIZE; /* IDs we've seen in this search */
+ newsubs = visited + BDB_IDL_DB_SIZE; /* New subtrees we've added */
+ oldsubs = newsubs + BDB_IDL_DB_SIZE; /* Subtrees added previously */
+ tmp = oldsubs + BDB_IDL_DB_SIZE; /* Scratch space for deref_base() */
+
+ /* A copy of subscop, because subscop gets clobbered by
+ * the bdb_idl_union/intersection routines
+ */
+ subscop2 = tmp + BDB_IDL_DB_SIZE;
+
+ af.f_choice = LDAP_FILTER_EQUALITY;
+ af.f_ava = &aa_alias;
+ af.f_av_desc = slap_schema.si_ad_objectClass;
+ af.f_av_value = bv_alias;
+ af.f_next = NULL;
+
+ /* Find all aliases in database */
+ BDB_IDL_ZERO( aliases );
+ rs->sr_err = bdb_filter_candidates( op, &af, aliases,
+ curscop, visited );
+ if (rs->sr_err != LDAP_SUCCESS) {
+ return rs->sr_err;
+ }
+ oldsubs[0] = 1;
+ oldsubs[1] = e->e_id;
+
+ BDB_IDL_ZERO( ids );
+ BDB_IDL_ZERO( visited );
+ BDB_IDL_ZERO( newsubs );
+
+ cursoro = 0;
+ ido = bdb_idl_first( oldsubs, &cursoro );
+
+ for (;;) {
+ /* Set curscop to only the aliases in the current scope. Start with
+ * all the aliases, obtain the IDL for the current scope, and then
+ * get the intersection of these two IDLs. Add the current scope
+ * to the cumulative list of candidates.
+ */
+ BDB_IDL_CPY( curscop, aliases );
+ rs->sr_err = bdb_dn2idl( op, e, subscop,
+ subscop2+BDB_IDL_DB_SIZE );
+ if (first) {
+ first = 0;
+ } else {
+ bdb_cache_return_entry_r (bdb->bi_dbenv, &bdb->bi_cache, e, &locka);
+ }
+ BDB_IDL_CPY(subscop2, subscop);
+ rs->sr_err = bdb_idl_intersection(curscop, subscop);
+ bdb_idl_union( ids, subscop2 );
+
+ /* Dereference all of the aliases in the current scope. */
+ cursora = 0;
+ for (ida = bdb_idl_first(curscop, &cursora); ida != NOID;
+ ida = bdb_idl_next(curscop, &cursora))
+ {
+ ei = NULL;
+retry1:
+ rs->sr_err = bdb_cache_find_id(op, NULL,
+ ida, &ei, 0, locker, &lockr );
+ if (rs->sr_err != LDAP_SUCCESS) {
+ if ( rs->sr_err == DB_LOCK_DEADLOCK ||
+ rs->sr_err == DB_LOCK_NOTGRANTED ) goto retry1;
+ continue;
+ }
+ a = ei->bei_e;
+
+ /* This should only happen if the curscop IDL has maxed out and
+ * turned into a range that spans IDs indiscriminately
+ */
+ if (!is_entry_alias(a)) {
+ bdb_cache_return_entry_r (bdb->bi_dbenv, &bdb->bi_cache,
+ a, &lockr);
+ continue;
+ }
+
+ /* Actually dereference the alias */
+ BDB_IDL_ZERO(tmp);
+ a = deref_base( op, rs, a, &matched, locker, &lockr,
+ tmp, visited );
+ if (a) {
+ /* If the target was not already in our current candidates,
+ * make note of it in the newsubs list. Also
+ * set it in the scopes list so that bdb_search
+ * can check it.
+ */
+ if (bdb_idl_insert(ids, a->e_id) == 0) {
+ bdb_idl_insert(newsubs, a->e_id);
+ bdb_idl_insert(scopes, a->e_id);
+ }
+ bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache,
+ a, &lockr);
+
+ } else if (matched) {
+ /* Alias could not be dereferenced, or it deref'd to
+ * an ID we've already seen. Ignore it.
+ */
+ bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache,
+ matched, &lockr );
+ rs->sr_text = NULL;
+ }
+ }
+ /* If this is a OneLevel search, we're done; oldsubs only had one
+ * ID in it. For a Subtree search, oldsubs may be a list of scope IDs.
+ */
+ if ( op->ors_scope == LDAP_SCOPE_ONELEVEL ) break;
+nextido:
+ ido = bdb_idl_next( oldsubs, &cursoro );
+
+ /* If we're done processing the old scopes, did we add any new
+ * scopes in this iteration? If so, go back and do those now.
+ */
+ if (ido == NOID) {
+ if (BDB_IDL_IS_ZERO(newsubs)) break;
+ BDB_IDL_CPY(oldsubs, newsubs);
+ BDB_IDL_ZERO(newsubs);
+ cursoro = 0;
+ ido = bdb_idl_first( oldsubs, &cursoro );
+ }
+
+ /* Find the entry corresponding to the next scope. If it can't
+ * be found, ignore it and move on. This should never happen;
+ * we should never see the ID of an entry that doesn't exist.
+ * Set the name so that the scope's IDL can be retrieved.
+ */
+ ei = NULL;
+sameido:
+ rs->sr_err = bdb_cache_find_id(op, NULL, ido, &ei,
+ 0, locker, &locka );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ if ( rs->sr_err == DB_LOCK_DEADLOCK ||
+ rs->sr_err == DB_LOCK_NOTGRANTED )
+ goto sameido;
+ goto nextido;
+ }
+ e = ei->bei_e;
+ }
+ return rs->sr_err;
+}
int
-bdb_search(
- BackendDB *be,
- Connection *conn,
- Operation *op,
- struct berval *base,
- struct berval *nbase,
- int scope,
- int deref,
- int slimit,
- int tlimit,
- Filter *filter,
- struct berval *filterstr,
- AttributeName *attrs,
- int attrsonly )
+bdb_search( Operation *op, SlapReply *rs )
{
- struct bdb_info *bdb = (struct bdb_info *) be->be_private;
- int abandon;
- int rc;
- const char *text = NULL;
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
time_t stoptime;
ID id, cursor;
ID candidates[BDB_IDL_UM_SIZE];
- Entry *e = NULL;
- BerVarray v2refs = NULL;
- Entry *matched = NULL;
- struct berval realbase = { 0, NULL };
- int nentries = 0;
+ ID scopes[BDB_IDL_DB_SIZE];
+ Entry *e = NULL, base, e_root = {0};
+ Entry *matched = NULL;
+ EntryInfo *ei, ei_root = {0};
+ struct berval realbase = BER_BVNULL;
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+ slap_mask_t mask;
+#endif
int manageDSAit;
+ int tentries = 0;
+ ID lastid = NOID;
+ AttributeName *attrs;
- struct slap_limits_set *limit = NULL;
- int isroot = 0;
+ u_int32_t locker = 0;
+ DB_LOCK lock;
+ struct bdb_op_info *opinfo = NULL;
+ DB_TXN *ltid = NULL;
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_ENTRY,"bdb_back_search\n"));
-#else
- Debug( LDAP_DEBUG_TRACE, "=> bdb_back_search\n",
- 0, 0, 0);
-#endif
+ Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(bdb_search) "\n", 0, 0, 0);
+ attrs = op->oq_search.rs_attrs;
+
+ opinfo = (struct bdb_op_info *) op->o_private;
manageDSAit = get_manageDSAit( op );
- if ( nbase->bv_len == 0 ) {
+ if ( opinfo && opinfo->boi_txn ) {
+ ltid = opinfo->boi_txn;
+ locker = TXN_ID( ltid );
+ } else {
+ rs->sr_err = LOCK_ID( bdb->bi_dbenv, &locker );
+
+ switch(rs->sr_err) {
+ case 0:
+ break;
+ default:
+ send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
+ return rs->sr_err;
+ }
+ }
+
+ if ( op->o_req_ndn.bv_len == 0 ) {
/* DIT root special case */
- e = (Entry *) &slap_entry_root;
- rc = 0;
- } else
-#ifdef BDB_ALIASES
- /* get entry with reader lock */
- if ( deref & LDAP_DEREF_FINDING ) {
- e = deref_dn_r( be, nbase-, &err, &matched, &text );
-
- } else
-#endif
- {
- rc = bdb_dn2entry_r( be, NULL, nbase, &e, &matched, 0 );
+ ei_root.bei_e = &e_root;
+ ei_root.bei_parent = &ei_root;
+ e_root.e_private = &ei_root;
+ e_root.e_id = 0;
+ e_root.e_ocflags = SLAP_OC_GLUE | SLAP_OC__END;
+ BER_BVSTR( &e_root.e_nname, "" );
+ BER_BVSTR( &e_root.e_name, "" );
+ ei = &ei_root;
+ rs->sr_err = LDAP_SUCCESS;
+ } else {
+ if ( op->ors_deref & LDAP_DEREF_FINDING ) {
+ BDB_IDL_ZERO(candidates);
+ }
+dn2entry_retry:
+ /* get entry with reader lock */
+ rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei,
+ 1, locker, &lock );
}
- switch(rc) {
+ switch(rs->sr_err) {
case DB_NOTFOUND:
+ matched = ei->bei_e;
+ break;
case 0:
+ e = ei->bei_e;
break;
+ case LDAP_BUSY:
+ send_ldap_error( op, rs, LDAP_BUSY, "ldap server busy" );
+ if ( !opinfo )
+ LOCK_ID_FREE (bdb->bi_dbenv, locker );
+ return LDAP_BUSY;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto dn2entry_retry;
default:
- if (e != NULL) {
- bdb_cache_return_entry_w(&bdb->bi_cache, e);
- }
- if (matched != NULL) {
- bdb_cache_return_entry_r(&bdb->bi_cache, matched);
+ send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
+ if ( !opinfo )
+ LOCK_ID_FREE (bdb->bi_dbenv, locker );
+ return rs->sr_err;
+ }
+
+ if ( op->ors_deref & LDAP_DEREF_FINDING ) {
+ if ( matched && is_entry_alias( matched )) {
+ struct berval stub;
+
+ stub.bv_val = op->o_req_ndn.bv_val;
+ stub.bv_len = op->o_req_ndn.bv_len - matched->e_nname.bv_len - 1;
+ e = deref_base( op, rs, matched, &matched, locker, &lock,
+ candidates, NULL );
+ if ( e ) {
+ build_new_dn( &op->o_req_ndn, &e->e_nname, &stub,
+ op->o_tmpmemctx );
+ bdb_cache_return_entry_r (bdb->bi_dbenv, &bdb->bi_cache,
+ e, &lock);
+ matched = NULL;
+ goto dn2entry_retry;
+ }
+ } else if ( e && is_entry_alias( e )) {
+ e = deref_base( op, rs, e, &matched, locker, &lock,
+ candidates, NULL );
}
- send_ldap_result( conn, op, rc=LDAP_OTHER,
- NULL, "internal error", NULL, NULL );
- return rc;
}
if ( e == NULL ) {
- struct berval matched_dn = { 0, NULL };
- BerVarray refs = NULL;
+ struct berval matched_dn = BER_BVNULL;
if ( matched != NULL ) {
- BerVarray erefs;
-
- ber_dupbv( &matched_dn, &matched->e_name );
+ BerVarray erefs = NULL;
+
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+ /* return referral only if "disclose"
+ * is granted on the object */
+ if ( ! access_allowed( op, matched,
+ slap_schema.si_ad_entry,
+ NULL, ACL_DISCLOSE, NULL ) )
+ {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
- erefs = is_entry_referral( matched )
- ? get_entry_referrals( be, conn, op, matched )
- : NULL;
+ } else
+#endif /* SLAP_ACL_HONOR_DISCLOSE */
+ {
+ ber_dupbv( &matched_dn, &matched->e_name );
+
+ erefs = is_entry_referral( matched )
+ ? get_entry_referrals( op, matched )
+ : NULL;
+ if ( rs->sr_err == DB_NOTFOUND )
+ rs->sr_err = LDAP_REFERRAL;
+ rs->sr_matched = matched_dn.bv_val;
+ }
- bdb_cache_return_entry_r (&bdb->bi_cache, matched);
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, matched);
+#endif
+ bdb_cache_return_entry_r (bdb->bi_dbenv, &bdb->bi_cache,
+ matched, &lock);
matched = NULL;
- if( erefs ) {
- refs = referral_rewrite( erefs, &matched_dn,
- base, scope );
+ if ( erefs ) {
+ rs->sr_ref = referral_rewrite( erefs, &matched_dn,
+ &op->o_req_dn, op->oq_search.rs_scope );
ber_bvarray_free( erefs );
}
} else {
- refs = referral_rewrite( default_referral,
- NULL, base, scope );
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, matched);
+#endif
+ rs->sr_ref = referral_rewrite( default_referral,
+ NULL, &op->o_req_dn, op->oq_search.rs_scope );
+ rs->sr_err = rs->sr_ref != NULL ? LDAP_REFERRAL : LDAP_NO_SUCH_OBJECT;
}
- send_ldap_result( conn, op, rc=LDAP_REFERRAL ,
- matched_dn.bv_val, text, refs, NULL );
+ send_ldap_result( op, rs );
- if ( refs ) ber_bvarray_free( refs );
- if ( matched_dn.bv_val ) ber_memfree( matched_dn.bv_val );
- return rc;
+ if ( !opinfo )
+ LOCK_ID_FREE (bdb->bi_dbenv, locker );
+ if ( rs->sr_ref ) {
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ }
+ if ( !BER_BVISNULL( &matched_dn ) ) {
+ ber_memfree( matched_dn.bv_val );
+ rs->sr_matched = NULL;
+ }
+ return rs->sr_err;
+ }
+
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+ /* NOTE: __NEW__ "search" access is required
+ * on searchBase object */
+ if ( ! access_allowed_mask( op, e, slap_schema.si_ad_entry,
+ NULL, ACL_SEARCH, NULL, &mask ) )
+ {
+ if ( !ACL_GRANT( mask, ACL_DISCLOSE ) ) {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ } else {
+ rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+ }
+
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ if ( e != &e_root ) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache, e, &lock);
+ }
+ send_ldap_result( op, rs );
+ return rs->sr_err;
}
+#endif /* SLAP_ACL_HONOR_DISCLOSE */
- if (!manageDSAit && e != &slap_entry_root && is_entry_referral( e ) ) {
+ if ( !manageDSAit && e != &e_root && is_entry_referral( e ) ) {
/* entry is a referral, don't allow add */
- struct berval matched_dn;
- BerVarray erefs, refs;
+ struct berval matched_dn = BER_BVNULL;
+ BerVarray erefs = NULL;
ber_dupbv( &matched_dn, &e->e_name );
- erefs = get_entry_referrals( be, conn, op, e );
- refs = NULL;
+ erefs = get_entry_referrals( op, e );
- bdb_cache_return_entry_r( &bdb->bi_cache, e );
+ rs->sr_err = LDAP_REFERRAL;
+
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache, e, &lock );
e = NULL;
- if( erefs ) {
- refs = referral_rewrite( erefs, &matched_dn,
- base, scope );
+ if ( erefs ) {
+ rs->sr_ref = referral_rewrite( erefs, &matched_dn,
+ &op->o_req_dn, op->oq_search.rs_scope );
ber_bvarray_free( erefs );
+
+ if ( !rs->sr_ref ) {
+ rs->sr_text = "bad_referral object";
+ }
}
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_RESULTS,"bdb_search: entry is referral\n"));
-#else
- Debug( LDAP_DEBUG_TRACE, "bdb_search: entry is referral\n",
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_search) ": entry is referral\n",
0, 0, 0 );
-#endif
- send_ldap_result( conn, op, LDAP_REFERRAL,
- matched_dn.bv_val,
- refs ? NULL : "bad referral object",
- refs, NULL );
+ rs->sr_matched = matched_dn.bv_val;
+ send_ldap_result( op, rs );
- ber_bvarray_free( refs );
+ if ( !opinfo ) {
+ LOCK_ID_FREE (bdb->bi_dbenv, locker );
+ }
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
ber_memfree( matched_dn.bv_val );
+ rs->sr_matched = NULL;
return 1;
}
- /* if not root, get appropriate limits */
- if ( be_isroot( be, &op->o_ndn ) ) {
- isroot = 1;
- } else {
- ( void ) get_limits( be, &op->o_ndn, &limit );
+ if ( get_assert( op ) &&
+ ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
+ {
+ rs->sr_err = LDAP_ASSERTION_FAILED;
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ if ( e != &e_root ) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache, e, &lock);
+ }
+ send_ldap_result( op, rs );
+ return 1;
}
- /* The time/size limits come first because they require very little
- * effort, so there's no chance the candidates are selected and then
- * the request is not honored only because of time/size constraints */
+ /* compute it anyway; root does not use it */
+ stoptime = op->o_time + op->ors_tlimit;
- /* if no time limit requested, use soft limit (unless root!) */
- if ( isroot ) {
- if ( tlimit == 0 ) {
- tlimit = -1; /* allow root to set no limit */
- }
+ /* need normalized dn below */
+ ber_dupbv( &realbase, &e->e_nname );
- if ( slimit == 0 ) {
- slimit = -1;
- }
+ /* Copy info to base, must free entry before accessing the database
+ * in search_candidates, to avoid deadlocks.
+ */
+ base.e_private = e->e_private;
+ base.e_nname = realbase;
+ base.e_id = e->e_id;
- } else {
- /* if no limit is required, use soft limit */
- if ( tlimit <= 0 ) {
- tlimit = limit->lms_t_soft;
-
- /* if requested limit higher than hard limit, abort */
- } else if ( tlimit > limit->lms_t_hard ) {
- /* no hard limit means use soft instead */
- if ( limit->lms_t_hard == 0 ) {
- tlimit = limit->lms_t_soft;
-
- /* positive hard limit means abort */
- } else if ( limit->lms_t_hard > 0 ) {
- send_search_result( conn, op,
- LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL, 0 );
- rc = 0;
- goto done;
- }
-
- /* negative hard limit means no limit */
- }
-
- /* if no limit is required, use soft limit */
- if ( slimit <= 0 ) {
- slimit = limit->lms_s_soft;
-
- /* if requested limit higher than hard limit, abort */
- } else if ( slimit > limit->lms_s_hard ) {
- /* no hard limit means use soft instead */
- if ( limit->lms_s_hard == 0 ) {
- slimit = limit->lms_s_soft;
-
- /* positive hard limit means abort */
- } else if ( limit->lms_s_hard > 0 ) {
- send_search_result( conn, op,
- LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL, 0 );
- rc = 0;
- goto done;
- }
-
- /* negative hard limit means no limit */
- }
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ if ( e != &e_root ) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache, e, &lock);
}
-
- /* compute it anyway; root does not use it */
- stoptime = op->o_time + tlimit;
+ e = NULL;
/* select candidates */
- if ( scope == LDAP_SCOPE_BASE ) {
- rc = base_candidate( be, e, candidates );
+ if ( op->oq_search.rs_scope == LDAP_SCOPE_BASE ) {
+ rs->sr_err = base_candidate( op->o_bd, &base, candidates );
} else {
- BDB_IDL_ALL( bdb, candidates );
- rc = search_candidates( be, op, e, filter,
- scope, deref, candidates );
+ BDB_IDL_ZERO( candidates );
+ BDB_IDL_ZERO( scopes );
+ rs->sr_err = search_candidates( op, rs, &base,
+ locker, candidates, scopes );
}
- /* need normalized dn below */
- ber_dupbv( &realbase, &e->e_nname );
-
- /* start cursor at base entry's id
- * FIXME: hack to make "" base work
- * FIXME: moddn needs to assign new ID for this to work
+ /* start cursor at beginning of candidates.
*/
- cursor = e->e_id == NOID ? 1 : e->e_id;
-
- if ( e != &slap_entry_root ) {
- bdb_cache_return_entry_r(&bdb->bi_cache, e);
- }
- e = NULL;
+ cursor = 0;
if ( candidates[0] == 0 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_RESULTS,"bdb_search: no candidates\n"));
-#else
- Debug( LDAP_DEBUG_TRACE, "bdb_search: no candidates\n",
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_search) ": no candidates\n",
0, 0, 0 );
-#endif
- send_search_result( conn, op,
- LDAP_SUCCESS,
- NULL, NULL, NULL, NULL, 0 );
+ goto nochange;
+ }
- rc = 1;
+ /* if not root and candidates exceed to-be-checked entries, abort */
+ if ( op->ors_limit /* isroot == FALSE */ &&
+ op->ors_limit->lms_s_unchecked != -1 &&
+ BDB_IDL_N(candidates) > (unsigned) op->ors_limit->lms_s_unchecked )
+ {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
goto done;
}
- /* if not root and candidates exceed to-be-checked entries, abort */
- if ( !isroot && limit->lms_s_unchecked != -1 ) {
- if ( BDB_IDL_N(candidates) > (unsigned) limit->lms_s_unchecked ) {
- send_search_result( conn, op,
- LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL, 0 );
- rc = 1;
+ if ( op->ors_limit == NULL /* isroot == TRUE */ ||
+ !op->ors_limit->lms_s_pr_hide )
+ {
+ tentries = BDB_IDL_N(candidates);
+ }
+
+ if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
+ PagedResultsState *ps = op->o_pagedresults_state;
+ /* deferred cookie parsing */
+ rs->sr_err = parse_paged_cookie( op, rs );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ send_ldap_result( op, rs );
+ goto done;
+ }
+
+ if ( (ID)( ps->ps_cookie ) == 0 ) {
+ id = bdb_idl_first( candidates, &cursor );
+
+ } else {
+ if ( ps->ps_size == 0 ) {
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_text = "search abandoned by pagedResult size=0";
+ send_ldap_result( op, rs );
+ goto done;
+ }
+ for ( id = bdb_idl_first( candidates, &cursor );
+ id != NOID &&
+ id <= (ID)( ps->ps_cookie );
+ id = bdb_idl_next( candidates, &cursor ) )
+ {
+ /* empty */;
+ }
+ }
+
+ if ( cursor == NOID ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_search)
+ ": no paged results candidates\n",
+ 0, 0, 0 );
+ send_paged_response( op, rs, &lastid, 0 );
+
+ rs->sr_err = LDAP_OTHER;
goto done;
}
+ goto loop_begin;
}
for ( id = bdb_idl_first( candidates, &cursor );
- id != NOID;
- id = bdb_idl_next( candidates, &cursor ) )
+ id != NOID ; id = bdb_idl_next( candidates, &cursor ) )
{
- int scopeok = 0;
+ int scopeok;
- /* check for abandon */
- ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
- abandon = op->o_abandon;
- ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
+loop_begin:
- if ( abandon ) {
- rc = 0;
+ /* check for abandon */
+ if ( op->o_abandon ) {
+ rs->sr_err = SLAPD_ABANDON;
goto done;
}
/* check time limit */
- if ( tlimit != -1 && slap_get_time() > stoptime ) {
- send_search_result( conn, op, rc = LDAP_TIMELIMIT_EXCEEDED,
- NULL, NULL, v2refs, NULL, nentries );
+ if ( op->ors_tlimit != SLAP_NO_LIMIT
+ && slap_get_time() > stoptime )
+ {
+ rs->sr_err = LDAP_TIMELIMIT_EXCEEDED;
+ rs->sr_ref = rs->sr_v2ref;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
goto done;
}
- /* get the entry with reader lock */
- rc = bdb_id2entry_r( be, NULL, id, &e );
+fetch_entry_retry:
+ /* get the entry with reader lock */
+ ei = NULL;
+ rs->sr_err = bdb_cache_find_id( op, ltid,
+ id, &ei, 0, locker, &lock );
- if ( e == NULL ) {
- if( !BDB_IDL_IS_RANGE(candidates) ) {
- /* only complain for non-range IDLs */
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_RESULTS,"bdb_search: candidate %ld not found\n", (long) id));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "bdb_search: candidate %ld not found\n",
- (long) id, 0, 0 );
-#endif
+ if (rs->sr_err == LDAP_BUSY) {
+ rs->sr_text = "ldap server busy";
+ send_ldap_result( op, rs );
+ goto done;
+
+ } else if ( rs->sr_err == DB_LOCK_DEADLOCK
+ || rs->sr_err == DB_LOCK_NOTGRANTED )
+ {
+ goto fetch_entry_retry;
}
- goto loop_continue;
- }
+ if ( ei && rs->sr_err == LDAP_SUCCESS ) {
+ e = ei->bei_e;
+ } else {
+ e = NULL;
+ }
+
+ if ( e == NULL ) {
+ if( !BDB_IDL_IS_RANGE(candidates) ) {
+ /* only complain for non-range IDLs */
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_search)
+ ": candidate %ld not found\n",
+ (long) id, 0, 0 );
+ }
+
+ goto loop_continue;
+ }
+
+ rs->sr_entry = e;
-#ifdef BDB_SUBENTRIES
if ( is_entry_subentry( e ) ) {
- if( scope != LDAP_SCOPE_BASE ) {
+ if( op->oq_search.rs_scope != LDAP_SCOPE_BASE ) {
if(!get_subentries_visibility( op )) {
/* only subentries are visible */
goto loop_continue;
@@ -352,174 +745,209 @@ bdb_search(
/* only subentries are visible */
goto loop_continue;
}
-#endif
-
-#ifdef BDB_ALIASES
- if ( deref & LDAP_DEREF_SEARCHING && is_entry_alias( e ) ) {
- Entry *matched;
- int err;
- const char *text;
-
- e = deref_entry_r( be, e, &err, &matched, &text );
- if( e == NULL ) {
- e = matched;
- goto loop_continue;
+ /* Does this candidate actually satisfy the search scope?
+ *
+ * Note that we don't lock access to the bei_parent pointer.
+ * Since only leaf nodes can be deleted, the parent of any
+ * node will always be a valid node. Also since we have
+ * a Read lock on the data, it cannot be renamed out of the
+ * scope while we are looking at it, and unless we're using
+ * BDB_HIER, its parents cannot be moved either.
+ */
+ scopeok = 0;
+ switch( op->ors_scope ) {
+ case LDAP_SCOPE_BASE:
+ /* This is always true, yes? */
+ if ( id == base.e_id ) scopeok = 1;
+ break;
+
+ case LDAP_SCOPE_ONELEVEL:
+ if ( ei->bei_parent->bei_id == base.e_id ) scopeok = 1;
+ break;
+
+#ifdef LDAP_SCOPE_CHILDREN
+ case LDAP_SCOPE_CHILDREN:
+ if ( id == base.e_id ) break;
+ /* Fall-thru */
+#endif
+ case LDAP_SCOPE_SUBTREE: {
+ EntryInfo *tmp;
+ for ( tmp = BEI(e); tmp; tmp = tmp->bei_parent ) {
+ if ( tmp->bei_id == base.e_id ) {
+ scopeok = 1;
+ break;
+ }
}
+ } break;
+ }
- if( e->e_id == id ) {
- /* circular loop */
+ /* aliases were already dereferenced in candidate list */
+ if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
+ /* but if the search base is an alias, and we didn't
+ * deref it when finding, return it.
+ */
+ if ( is_entry_alias(e) &&
+ ((op->ors_deref & LDAP_DEREF_FINDING) ||
+ !bvmatch(&e->e_nname, &op->o_req_ndn)))
+ {
goto loop_continue;
}
- /* need to skip alias which deref into scope */
- if( scope & LDAP_SCOPE_ONELEVEL ) {
- struct berval pdn;
-
- dnParent( &e->e_nname, &pdn ):
- if ( ber_bvcmp( pdn, &realbase ) ) {
- goto loop_continue;
+ /* scopes is only non-empty for onelevel or subtree */
+ if ( !scopeok && BDB_IDL_N(scopes) ) {
+ unsigned x;
+ if ( op->ors_scope == LDAP_SCOPE_ONELEVEL ) {
+ x = bdb_idl_search( scopes, e->e_id );
+ if ( scopes[x] == e->e_id ) scopeok = 1;
+ } else {
+ /* subtree, walk up the tree */
+ EntryInfo *tmp = BEI(e);
+ for (;tmp->bei_parent; tmp=tmp->bei_parent) {
+ x = bdb_idl_search( scopes, tmp->bei_id );
+ if ( scopes[x] == tmp->bei_id ) {
+ scopeok = 1;
+ break;
+ }
+ }
}
-
- } else if ( dnIsSuffix( &e->e_nname, &realbase ) ) {
- /* alias is within scope */
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_RESULTS,"bdb_search: \"%s\" in subtree\n", e->edn));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "bdb_search: \"%s\" in subtree\n",
- e->e_dn, 0, 0 );
-#endif
- goto loop_continue;
}
+ }
- scopeok = 1;
+ /* Not in scope, ignore it */
+ if ( !scopeok )
+ {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_search)
+ ": %ld scope not okay\n",
+ (long) id, 0, 0 );
+ goto loop_continue;
}
-#endif
/*
* if it's a referral, add it to the list of referrals. only do
* this for non-base searches, and don't check the filter
* explicitly here since it's only a candidate anyway.
*/
- if ( !manageDSAit && scope != LDAP_SCOPE_BASE &&
- is_entry_referral( e ) )
+ if ( !manageDSAit && op->oq_search.rs_scope != LDAP_SCOPE_BASE
+ && is_entry_referral( e ) )
{
- BerVarray erefs = get_entry_referrals(
- be, conn, op, e );
- BerVarray refs = referral_rewrite( erefs,
- &e->e_name, NULL,
- scope == LDAP_SCOPE_SUBTREE
- ? LDAP_SCOPE_SUBTREE
- : LDAP_SCOPE_BASE );
+ BerVarray erefs = get_entry_referrals( op, e );
+ rs->sr_ref = referral_rewrite( erefs, &e->e_name, NULL,
+ op->oq_search.rs_scope == LDAP_SCOPE_ONELEVEL
+ ? LDAP_SCOPE_BASE : LDAP_SCOPE_SUBTREE );
+
+ send_search_reference( op, rs );
- send_search_reference( be, conn, op,
- e, refs, NULL, &v2refs );
+ ber_bvarray_free( rs->sr_ref );
+ ber_bvarray_free( erefs );
+ rs->sr_ref = NULL;
- ber_bvarray_free( refs );
+ goto loop_continue;
+ }
+ if ( !manageDSAit && is_entry_glue( e )) {
goto loop_continue;
}
/* if it matches the filter and scope, send it */
- rc = test_filter( be, conn, op, e, filter );
- if ( rc == LDAP_COMPARE_TRUE ) {
- struct berval dn;
-
- /* check scope */
- if ( !scopeok && scope == LDAP_SCOPE_ONELEVEL ) {
- if ( be_issuffix( be, &e->e_nname ) ) {
- scopeok = (realbase.bv_len == 0);
- } else {
- dnParent( &e->e_nname, &dn );
- scopeok = dn_match( &dn, &realbase );
+ rs->sr_err = test_filter( op, rs->sr_entry, op->oq_search.rs_filter );
+
+ if ( rs->sr_err == LDAP_COMPARE_TRUE ) {
+ /* check size limit */
+ if ( get_pagedresults(op) > SLAP_CONTROL_IGNORED ) {
+ if ( rs->sr_nentries >= ((PagedResultsState *)op->o_pagedresults_state)->ps_size ) {
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ bdb_cache_return_entry_r( bdb->bi_dbenv,
+ &bdb->bi_cache, e, &lock );
+ e = NULL;
+ send_paged_response( op, rs, &lastid, tentries );
+ goto done;
}
-
- } else if ( !scopeok && scope == LDAP_SCOPE_SUBTREE ) {
- scopeok = dnIsSuffix( &e->e_nname, &realbase );
-
- } else {
- scopeok = 1;
+ lastid = id;
}
- if ( scopeok ) {
- /* check size limit */
- if ( --slimit == -1 ) {
- bdb_cache_return_entry_r (&bdb->bi_cache, e);
+ if (e) {
+ /* safe default */
+ rs->sr_attrs = op->oq_search.rs_attrs;
+ rs->sr_operational_attrs = NULL;
+ rs->sr_ctrls = NULL;
+ rs->sr_flags = 0;
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_err = send_search_entry( op, rs );
+
+ switch ( rs->sr_err ) {
+ case LDAP_SUCCESS: /* entry sent ok */
+ break;
+ default: /* entry not sent */
+ break;
+ case LDAP_UNAVAILABLE:
+ case LDAP_SIZELIMIT_EXCEEDED:
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ bdb_cache_return_entry_r(bdb->bi_dbenv,
+ &bdb->bi_cache, e, &lock);
e = NULL;
- send_search_result( conn, op,
- rc = LDAP_SIZELIMIT_EXCEEDED, NULL, NULL,
- v2refs, NULL, nentries );
- goto done;
- }
+ rs->sr_entry = NULL;
+ if ( rs->sr_err == LDAP_SIZELIMIT_EXCEEDED ) {
+ rs->sr_ref = rs->sr_v2ref;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
- if (e) {
- int result;
-
- if( op->o_noop ) {
- result = 0;
} else {
- result = send_search_entry( be, conn, op,
- e, attrs, attrsonly, NULL);
- }
-
- switch (result) {
- case 0: /* entry sent ok */
- nentries++;
- break;
- case 1: /* entry not sent */
- break;
- case -1: /* connection closed */
- bdb_cache_return_entry_r(&bdb->bi_cache, e);
- e = NULL;
- rc = LDAP_OTHER;
- goto done;
+ rs->sr_err = LDAP_OTHER;
}
+ goto done;
}
- } else {
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_RESULTS,"bdb_search: %ld scope not okay\n", (long) id));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "bdb_search: %ld scope not okay\n",
- (long) id, 0, 0 );
-#endif
}
+
} else {
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_RESULTS,"bdb_search: %ld does match filter\n", (long) id));
-#else
Debug( LDAP_DEBUG_TRACE,
- "bdb_search: %ld does match filter\n",
+ LDAP_XSTRING(bdb_search)
+ ": %ld does not match filter\n",
(long) id, 0, 0 );
-#endif
}
loop_continue:
if( e != NULL ) {
/* free reader lock */
- bdb_cache_return_entry_r ( &bdb->bi_cache, e );
- e = NULL;
+#ifdef SLAP_ZONE_ALLOC
+ slap_zn_runlock(bdb->bi_cache.c_zctx, e);
+#endif
+ bdb_cache_return_entry_r( bdb->bi_dbenv,
+ &bdb->bi_cache, e , &lock );
+ e = NULL;
+ rs->sr_entry = NULL;
}
+ }
- ldap_pvt_thread_yield();
+nochange:
+ rs->sr_ctrls = NULL;
+ rs->sr_ref = rs->sr_v2ref;
+ rs->sr_err = (rs->sr_v2ref == NULL) ? LDAP_SUCCESS : LDAP_REFERRAL;
+ rs->sr_rspoid = NULL;
+ if ( get_pagedresults(op) > SLAP_CONTROL_IGNORED ) {
+ send_paged_response( op, rs, NULL, 0 );
+ } else {
+ send_ldap_result( op, rs );
}
- send_search_result( conn, op,
- v2refs == NULL ? LDAP_SUCCESS : LDAP_REFERRAL,
- NULL, NULL, v2refs, NULL, nentries );
- rc = 0;
+ rs->sr_err = LDAP_SUCCESS;
done:
- if( e != NULL ) {
- /* free reader lock */
- bdb_cache_return_entry_r ( &bdb->bi_cache, e );
- }
+ if ( !opinfo )
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
- if( v2refs ) ber_bvarray_free( v2refs );
+ if( rs->sr_v2ref ) {
+ ber_bvarray_free( rs->sr_v2ref );
+ rs->sr_v2ref = NULL;
+ }
if( realbase.bv_val ) ch_free( realbase.bv_val );
- return rc;
+ return rs->sr_err;
}
@@ -528,73 +956,102 @@ static int base_candidate(
Entry *e,
ID *ids )
{
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_ENTRY,"base_candidate: base: \"%s\" (0x%08lx)\n", e->e_dn, (long) e->e_id));
-#else
Debug(LDAP_DEBUG_ARGS, "base_candidates: base: \"%s\" (0x%08lx)\n",
- e->e_dn, (long) e->e_id, 0);
-#endif
+ e->e_nname.bv_val, (long) e->e_id, 0);
ids[0] = 1;
ids[1] = e->e_id;
return 0;
}
-/* Is "objectClass=xx" mentioned anywhere in this filter? Presence
- * doesn't count, we're looking for explicit values.
+/* Look for "objectClass Present" in this filter.
+ * Also count depth of filter tree while we're at it.
*/
static int oc_filter(
- Filter *f
-)
+ Filter *f,
+ int cur,
+ int *max )
{
int rc = 0;
- switch(f->f_choice) {
- case LDAP_FILTER_EQUALITY:
- case LDAP_FILTER_APPROX:
- if (f->f_av_desc == slap_schema.si_ad_objectClass)
- rc = 1;
- break;
+ assert( f != NULL );
- case LDAP_FILTER_SUBSTRINGS:
- if (f->f_sub_desc == slap_schema.si_ad_objectClass)
+ if( cur > *max ) *max = cur;
+
+ switch( f->f_choice ) {
+ case LDAP_FILTER_PRESENT:
+ if (f->f_desc == slap_schema.si_ad_objectClass) {
rc = 1;
+ }
break;
case LDAP_FILTER_AND:
case LDAP_FILTER_OR:
- for (f=f->f_and; f; f=f->f_next)
- if ((rc = oc_filter(f)))
- break;
+ cur++;
+ for ( f=f->f_and; f; f=f->f_next ) {
+ (void) oc_filter(f, cur, max);
+ }
break;
+
default:
break;
}
return rc;
}
+static void search_stack_free( void *key, void *data )
+{
+ ber_memfree_x(data, NULL);
+}
+
+static void *search_stack( Operation *op )
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ void *ret = NULL;
+
+ if ( op->o_threadctx ) {
+ ldap_pvt_thread_pool_getkey( op->o_threadctx, search_stack,
+ &ret, NULL );
+ } else {
+ ret = bdb->bi_search_stack;
+ }
+
+ if ( !ret ) {
+ ret = ch_malloc( bdb->bi_search_stack_depth * BDB_IDL_UM_SIZE
+ * sizeof( ID ) );
+ if ( op->o_threadctx ) {
+ ldap_pvt_thread_pool_setkey( op->o_threadctx, search_stack,
+ ret, search_stack_free );
+ } else {
+ bdb->bi_search_stack = ret;
+ }
+ }
+ return ret;
+}
+
static int search_candidates(
- BackendDB *be,
Operation *op,
+ SlapReply *rs,
Entry *e,
- Filter *filter,
- int scope,
- int deref,
- ID *ids )
+ u_int32_t locker,
+ ID *ids,
+ ID *scopes )
{
- int rc;
- Filter f, scopef, rf, xf;
- ID tmp[BDB_IDL_UM_SIZE];
- AttributeAssertion aa_ref;
-#ifdef BDB_SUBENTRIES
- Filter sf;
- AttributeAssertion aa_subentry;
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ int rc, depth = 1;
+ Filter f, rf, xf, nf;
+ ID *stack;
+#ifdef LDAP_COMP_MATCH
+ AttributeAssertion aa_ref = { NULL, BER_BVNULL, NULL };
+#else
+ AttributeAssertion aa_ref = { NULL, BER_BVNULL };
#endif
-#ifdef BDB_ALIASES
- Filter af;
- AttributeAssertion aa_alias;
+ Filter sf;
+#ifdef LDAP_COMP_MATCH
+ AttributeAssertion aa_subentry = { NULL, BER_BVNULL, NULL };
+#else
+ AttributeAssertion aa_subentry = { NULL, BER_BVNULL };
#endif
- struct bdb_info *bdb = (struct bdb_info *) be->be_private;
/*
* This routine takes as input a filter (user-filter)
@@ -603,88 +1060,243 @@ static int search_candidates(
* (|[(objectClass=referral)(objectClass=alias)](user-filter))
*/
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_ENTRY,"search_candidates: base=\"%s\" (0x%08lx) scope=%d\n", e->e_dn, (long) e->e_id, scope));
-#else
Debug(LDAP_DEBUG_TRACE,
"search_candidates: base=\"%s\" (0x%08lx) scope=%d\n",
- e->e_dn, (long) e->e_id, scope );
-#endif
+ e->e_nname.bv_val, (long) e->e_id, op->oq_search.rs_scope );
- xf.f_or = filter;
+ xf.f_or = op->oq_search.rs_filter;
xf.f_choice = LDAP_FILTER_OR;
xf.f_next = NULL;
- /* If the user's filter doesn't mention objectClass, or if
- * it just uses objectClass=*, these clauses are redundant.
+ /* If the user's filter uses objectClass=*,
+ * these clauses are redundant.
*/
- if (oc_filter(filter) && !get_subentries_visibility(op) ) {
- if( !get_manageDSAit(op) ) { /* match referrals */
- struct berval bv_ref = { sizeof("REFERRAL")-1, "REFERRAL" };
+ if (!oc_filter(op->oq_search.rs_filter, 1, &depth)
+ && !get_subentries_visibility(op)) {
+ if( !get_manageDSAit(op) && !get_domainScope(op) ) {
+ /* match referral objects */
+ struct berval bv_ref = BER_BVC( "referral" );
rf.f_choice = LDAP_FILTER_EQUALITY;
rf.f_ava = &aa_ref;
rf.f_av_desc = slap_schema.si_ad_objectClass;
rf.f_av_value = bv_ref;
rf.f_next = xf.f_or;
xf.f_or = &rf;
+ depth++;
}
-
-#ifdef BDB_ALIASES
- if( deref & LDAP_DEREF_SEARCHING ) { /* match aliases */
- struct berval bv_alias = { sizeof("ALIAS")-1, "ALIAS" };
- af.f_choice = LDAP_FILTER_EQUALITY;
- af.f_ava = &aa_alias;
- af.f_av_desc = slap_schema.si_ad_objectClass;
- af.f_av_value = bv_alias;
- af.f_next = xf.f_or;
- xf.f_or =
- }
-#endif
}
f.f_next = NULL;
f.f_choice = LDAP_FILTER_AND;
- f.f_and = &scopef;
- scopef.f_choice = scope == LDAP_SCOPE_SUBTREE
- ? SLAPD_FILTER_DN_SUBTREE
- : SLAPD_FILTER_DN_ONE;
- scopef.f_dn = &e->e_nname;
- scopef.f_next = xf.f_or == filter ? filter : &xf ;
-
-#ifdef BDB_SUBENTRIES
+ f.f_and = &nf;
+ /* Dummy; we compute scope separately now */
+ nf.f_choice = SLAPD_FILTER_COMPUTED;
+ nf.f_result = LDAP_SUCCESS;
+ nf.f_next = ( xf.f_or == op->oq_search.rs_filter )
+ ? op->oq_search.rs_filter : &xf ;
+ /* Filter depth increased again, adding dummy clause */
+ depth++;
+
if( get_subentries_visibility( op ) ) {
- struct berval bv_subentry = { sizeof("SUBENTRY")-1, "SUBENTRY" };
+ struct berval bv_subentry = BER_BVC( "subentry" );
sf.f_choice = LDAP_FILTER_EQUALITY;
sf.f_ava = &aa_subentry;
sf.f_av_desc = slap_schema.si_ad_objectClass;
sf.f_av_value = bv_subentry;
- sf.f_next = scopef.f_next;
- scopef.f_next = &sf;
+ sf.f_next = nf.f_next;
+ nf.f_next = &sf;
}
-#endif
- rc = bdb_filter_candidates( be, &f, ids, tmp );
+ /* Allocate IDL stack, plus 1 more for former tmp */
+ if ( depth+1 > bdb->bi_search_stack_depth ) {
+ stack = ch_malloc( (depth + 1) * BDB_IDL_UM_SIZE * sizeof( ID ) );
+ } else {
+ stack = search_stack( op );
+ }
+
+ if( op->ors_deref & LDAP_DEREF_SEARCHING ) {
+ rc = search_aliases( op, rs, e, locker, ids, scopes, stack );
+ } else {
+ rc = bdb_dn2idl( op, e, ids, stack );
+ }
+
+ if ( rc == LDAP_SUCCESS ) {
+ rc = bdb_filter_candidates( op, &f, ids,
+ stack, stack+BDB_IDL_UM_SIZE );
+ }
+
+ if ( depth+1 > bdb->bi_search_stack_depth ) {
+ ch_free( stack );
+ }
if( rc ) {
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_DETAIL1,"bdb_search_candidates: failed (rc=%d)\n", rc));
-#else
Debug(LDAP_DEBUG_TRACE,
"bdb_search_candidates: failed (rc=%d)\n",
rc, NULL, NULL );
-#endif
} else {
-#ifdef NEW_LOGGING
- LDAP_LOG (( "search", LDAP_LEVEL_DETAIL1,"bdb_search_candidates: id=%ld first=%ld last=%ld\n", (long) ids[0], (long) BDB_IDL_FIRST(ids), (long) BDB_IDL_LAST(ids)));
-#else
Debug(LDAP_DEBUG_TRACE,
"bdb_search_candidates: id=%ld first=%ld last=%ld\n",
(long) ids[0],
(long) BDB_IDL_FIRST(ids),
(long) BDB_IDL_LAST(ids) );
+ }
+
+ return rc;
+}
+
+static int
+parse_paged_cookie( Operation *op, SlapReply *rs )
+{
+ LDAPControl **c;
+ int rc = LDAP_SUCCESS;
+ ber_tag_t tag;
+ ber_int_t size;
+ BerElement *ber;
+ struct berval cookie = BER_BVNULL;
+ PagedResultsState *ps = op->o_pagedresults_state;
+
+ /* this function must be invoked only if the pagedResults
+ * control has been detected, parsed and partially checked
+ * by the frontend */
+ assert( get_pagedresults( op ) > SLAP_CONTROL_IGNORED );
+
+ /* look for the appropriate ctrl structure */
+ for ( c = op->o_ctrls; c[0] != NULL; c++ ) {
+ if ( strcmp( c[0]->ldctl_oid, LDAP_CONTROL_PAGEDRESULTS ) == 0 )
+ {
+ break;
+ }
+ }
+
+ if ( c[0] == NULL ) {
+ rs->sr_text = "missing pagedResults control";
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ /* Tested by frontend */
+ assert( c[0]->ldctl_value.bv_len > 0 );
+
+ /* Parse the control value
+ * realSearchControlValue ::= SEQUENCE {
+ * size INTEGER (0..maxInt),
+ * -- requested page size from client
+ * -- result set size estimate from server
+ * cookie OCTET STRING
+ * }
+ */
+ ber = ber_init( &c[0]->ldctl_value );
+ if ( ber == NULL ) {
+ rs->sr_text = "internal error";
+ return LDAP_OTHER;
+ }
+
+ tag = ber_scanf( ber, "{im}", &size, &cookie );
+
+ /* Tested by frontend */
+ assert( tag != LBER_ERROR );
+ assert( size >= 0 );
+
+ /* cookie decoding/checks deferred to backend... */
+ if ( cookie.bv_len ) {
+ PagedResultsCookie reqcookie;
+ if( cookie.bv_len != sizeof( reqcookie ) ) {
+ /* bad cookie */
+ rs->sr_text = "paged results cookie is invalid";
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
+ }
+
+ AC_MEMCPY( &reqcookie, cookie.bv_val, sizeof( reqcookie ));
+
+ if ( reqcookie > ps->ps_cookie ) {
+ /* bad cookie */
+ rs->sr_text = "paged results cookie is invalid";
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
+
+ } else if ( reqcookie < ps->ps_cookie ) {
+ rs->sr_text = "paged results cookie is invalid or old";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto done;
+ }
+
+ } else {
+ /* Initial request. Initialize state. */
+#if 0
+ if ( op->o_conn->c_pagedresults_state.ps_cookie != 0 ) {
+ /* There's another pagedResults control on the
+ * same connection; reject new pagedResults controls
+ * (allowed by RFC2696) */
+ rs->sr_text = "paged results cookie unavailable; try later";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto done;
+ }
#endif
+ ps->ps_cookie = 0;
+ ps->ps_count = 0;
}
+done:;
+ (void)ber_free( ber, 1 );
+
return rc;
}
+
+static void
+send_paged_response(
+ Operation *op,
+ SlapReply *rs,
+ ID *lastid,
+ int tentries )
+{
+ LDAPControl ctrl, *ctrls[2];
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *)&berbuf;
+ PagedResultsCookie respcookie;
+ struct berval cookie;
+
+ Debug(LDAP_DEBUG_ARGS,
+ "send_paged_response: lastid=0x%08lx nentries=%d\n",
+ lastid ? *lastid : 0, rs->sr_nentries, NULL );
+
+ BER_BVZERO( &ctrl.ldctl_value );
+ ctrls[0] = &ctrl;
+ ctrls[1] = NULL;
+
+ ber_init2( ber, NULL, LBER_USE_DER );
+
+ if ( lastid ) {
+ respcookie = ( PagedResultsCookie )(*lastid);
+ cookie.bv_len = sizeof( respcookie );
+ cookie.bv_val = (char *)&respcookie;
+
+ } else {
+ respcookie = ( PagedResultsCookie )0;
+ BER_BVSTR( &cookie, "" );
+ }
+
+ op->o_conn->c_pagedresults_state.ps_cookie = respcookie;
+ op->o_conn->c_pagedresults_state.ps_count =
+ ((PagedResultsState *)op->o_pagedresults_state)->ps_count +
+ rs->sr_nentries;
+
+ /* return size of 0 -- no estimate */
+ ber_printf( ber, "{iO}", 0, &cookie );
+
+ if ( ber_flatten2( ber, &ctrls[0]->ldctl_value, 0 ) == -1 ) {
+ goto done;
+ }
+
+ ctrls[0]->ldctl_oid = LDAP_CONTROL_PAGEDRESULTS;
+ ctrls[0]->ldctl_iscritical = 0;
+
+ rs->sr_ctrls = ctrls;
+ rs->sr_err = LDAP_SUCCESS;
+ send_ldap_result( op, rs );
+ rs->sr_ctrls = NULL;
+
+done:
+ (void) ber_free_buf( ber );
+}
+