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diff --git a/servers/slapd/overlays/unique.c b/servers/slapd/overlays/unique.c
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+++ b/servers/slapd/overlays/unique.c
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+/* unique.c - attribute uniqueness module */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2004-2021 The OpenLDAP Foundation.
+ * Portions Copyright 2004,2006-2007 Symas Corporation.
+ * 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>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Symas Corporation for
+ * inclusion in OpenLDAP Software, with subsequent enhancements by
+ * Emily Backes at Symas Corporation. This work was sponsored by
+ * Hewlett-Packard.
+ */
+
+#include "portable.h"
+
+#ifdef SLAPD_OVER_UNIQUE
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "config.h"
+
+#define UNIQUE_DEFAULT_URI ("ldap:///??sub")
+
+static slap_overinst unique;
+
+typedef struct unique_attrs_s {
+ struct unique_attrs_s *next; /* list of attrs */
+ AttributeDescription *attr;
+} unique_attrs;
+
+typedef struct unique_domain_uri_s {
+ struct unique_domain_uri_s *next;
+ struct berval dn;
+ struct berval ndn;
+ struct berval filter;
+ Filter *f;
+ struct unique_attrs_s *attrs;
+ int scope;
+} unique_domain_uri;
+
+typedef struct unique_domain_s {
+ struct unique_domain_s *next;
+ struct berval domain_spec;
+ struct unique_domain_uri_s *uri;
+ char ignore; /* polarity of attributes */
+ char strict; /* null considered unique too */
+} unique_domain;
+
+typedef struct unique_data_s {
+ struct unique_domain_s *domains;
+ struct unique_domain_s *legacy;
+ char legacy_strict_set;
+} unique_data;
+
+typedef struct unique_counter_s {
+ struct berval *ndn;
+ int count;
+} unique_counter;
+
+enum {
+ UNIQUE_BASE = 1,
+ UNIQUE_IGNORE,
+ UNIQUE_ATTR,
+ UNIQUE_STRICT,
+ UNIQUE_URI
+};
+
+static ConfigDriver unique_cf_base;
+static ConfigDriver unique_cf_attrs;
+static ConfigDriver unique_cf_strict;
+static ConfigDriver unique_cf_uri;
+
+static ConfigTable uniquecfg[] = {
+ { "unique_base", "basedn", 2, 2, 0, ARG_DN|ARG_MAGIC|UNIQUE_BASE,
+ unique_cf_base, "( OLcfgOvAt:10.1 NAME 'olcUniqueBase' "
+ "DESC 'Subtree for uniqueness searches' "
+ "EQUALITY distinguishedNameMatch "
+ "SYNTAX OMsDN SINGLE-VALUE )", NULL, NULL },
+ { "unique_ignore", "attribute...", 2, 0, 0, ARG_MAGIC|UNIQUE_IGNORE,
+ unique_cf_attrs, "( OLcfgOvAt:10.2 NAME 'olcUniqueIgnore' "
+ "DESC 'Attributes for which uniqueness shall not be enforced' "
+ "EQUALITY caseIgnoreMatch "
+ "ORDERING caseIgnoreOrderingMatch "
+ "SUBSTR caseIgnoreSubstringsMatch "
+ "SYNTAX OMsDirectoryString )", NULL, NULL },
+ { "unique_attributes", "attribute...", 2, 0, 0, ARG_MAGIC|UNIQUE_ATTR,
+ unique_cf_attrs, "( OLcfgOvAt:10.3 NAME 'olcUniqueAttribute' "
+ "DESC 'Attributes for which uniqueness shall be enforced' "
+ "EQUALITY caseIgnoreMatch "
+ "ORDERING caseIgnoreOrderingMatch "
+ "SUBSTR caseIgnoreSubstringsMatch "
+ "SYNTAX OMsDirectoryString )", NULL, NULL },
+ { "unique_strict", "on|off", 1, 2, 0, ARG_MAGIC|UNIQUE_STRICT,
+ unique_cf_strict, "( OLcfgOvAt:10.4 NAME 'olcUniqueStrict' "
+ "DESC 'Enforce uniqueness of null values' "
+ "EQUALITY booleanMatch "
+ "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
+ { "unique_uri", "ldapuri", 2, 3, 0, ARG_MAGIC|UNIQUE_URI,
+ unique_cf_uri, "( OLcfgOvAt:10.5 NAME 'olcUniqueURI' "
+ "DESC 'List of keywords and LDAP URIs for a uniqueness domain' "
+ "EQUALITY caseExactMatch "
+ "ORDERING caseExactOrderingMatch "
+ "SUBSTR caseExactSubstringsMatch "
+ "SYNTAX OMsDirectoryString )", NULL, NULL },
+ { NULL, NULL, 0, 0, 0, ARG_IGNORED }
+};
+
+static ConfigOCs uniqueocs[] = {
+ { "( OLcfgOvOc:10.1 "
+ "NAME 'olcUniqueConfig' "
+ "DESC 'Attribute value uniqueness configuration' "
+ "SUP olcOverlayConfig "
+ "MAY ( olcUniqueBase $ olcUniqueIgnore $ "
+ "olcUniqueAttribute $ olcUniqueStrict $ "
+ "olcUniqueURI ) )",
+ Cft_Overlay, uniquecfg },
+ { NULL, 0, NULL }
+};
+
+static void
+unique_free_domain_uri ( unique_domain_uri *uri )
+{
+ unique_domain_uri *next_uri = NULL;
+ unique_attrs *attr, *next_attr = NULL;
+
+ while ( uri ) {
+ next_uri = uri->next;
+ ch_free ( uri->dn.bv_val );
+ ch_free ( uri->ndn.bv_val );
+ ch_free ( uri->filter.bv_val );
+ filter_free( uri->f );
+ attr = uri->attrs;
+ while ( attr ) {
+ next_attr = attr->next;
+ ch_free (attr);
+ attr = next_attr;
+ }
+ ch_free ( uri );
+ uri = next_uri;
+ }
+}
+
+/* free an entire stack of domains */
+static void
+unique_free_domain ( unique_domain *domain )
+{
+ unique_domain *next_domain = NULL;
+
+ while ( domain ) {
+ next_domain = domain->next;
+ ch_free ( domain->domain_spec.bv_val );
+ unique_free_domain_uri ( domain->uri );
+ ch_free ( domain );
+ domain = next_domain;
+ }
+}
+
+static int
+unique_new_domain_uri ( unique_domain_uri **urip,
+ const LDAPURLDesc *url_desc,
+ ConfigArgs *c )
+{
+ int i, rc = LDAP_SUCCESS;
+ unique_domain_uri *uri;
+ struct berval bv = {0, NULL};
+ BackendDB *be = (BackendDB *)c->be;
+ char ** attr_str;
+ AttributeDescription * ad;
+ const char * text;
+
+ uri = ch_calloc ( 1, sizeof ( unique_domain_uri ) );
+
+ if ( url_desc->lud_host && url_desc->lud_host[0] ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "host <%s> not allowed in URI",
+ url_desc->lud_host );
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+
+ if ( url_desc->lud_dn && url_desc->lud_dn[0] ) {
+ ber_str2bv( url_desc->lud_dn, 0, 0, &bv );
+ rc = dnPrettyNormal( NULL,
+ &bv,
+ &uri->dn,
+ &uri->ndn,
+ NULL );
+ if ( rc != LDAP_SUCCESS ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "<%s> invalid DN %d (%s)",
+ url_desc->lud_dn, rc, ldap_err2string( rc ));
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+
+ if ( be->be_nsuffix == NULL ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "suffix must be set" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+
+ if ( !dnIsSuffix ( &uri->ndn, &be->be_nsuffix[0] ) ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "dn <%s> is not a suffix of backend base dn <%s>",
+ uri->dn.bv_val,
+ be->be_nsuffix[0].bv_val );
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+
+ if ( BER_BVISNULL( &be->be_rootndn ) || BER_BVISEMPTY( &be->be_rootndn ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "slapo-unique needs a rootdn; "
+ "backend <%s> has none, YMMV.\n",
+ be->be_nsuffix[0].bv_val, 0, 0 );
+ }
+ }
+
+ attr_str = url_desc->lud_attrs;
+ if ( attr_str ) {
+ for ( i=0; attr_str[i]; ++i ) {
+ unique_attrs * attr;
+ ad = NULL;
+ if ( slap_str2ad ( attr_str[i], &ad, &text )
+ == LDAP_SUCCESS) {
+ attr = ch_calloc ( 1,
+ sizeof ( unique_attrs ) );
+ attr->attr = ad;
+ attr->next = uri->attrs;
+ uri->attrs = attr;
+ } else {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "unique: attribute: %s: %s",
+ attr_str[i], text );
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+ }
+ }
+
+ uri->scope = url_desc->lud_scope;
+ if ( !uri->scope ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "unique: uri with base scope will always be unique");
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+
+ if (url_desc->lud_filter) {
+ char *ptr;
+ uri->f = str2filter( url_desc->lud_filter );
+ if ( !uri->f ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "unique: bad filter");
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+ /* make sure the strfilter is in normal form (ITS#5581) */
+ filter2bv( uri->f, &uri->filter );
+ ptr = strstr( uri->filter.bv_val, "(?=" /*)*/ );
+ if ( ptr != NULL && ptr <= ( uri->filter.bv_val - STRLENOF( "(?=" /*)*/ ) + uri->filter.bv_len ) )
+ {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "unique: bad filter");
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+ }
+exit:
+ uri->next = *urip;
+ *urip = uri;
+ if ( rc ) {
+ Debug ( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ unique_free_domain_uri ( uri );
+ *urip = NULL;
+ }
+ return rc;
+}
+
+static int
+unique_new_domain_uri_basic ( unique_domain_uri **urip,
+ ConfigArgs *c )
+{
+ LDAPURLDesc *url_desc = NULL;
+ int rc;
+
+ rc = ldap_url_parse ( UNIQUE_DEFAULT_URI, &url_desc );
+ if ( rc ) return rc;
+ rc = unique_new_domain_uri ( urip, url_desc, c );
+ ldap_free_urldesc ( url_desc );
+ return rc;
+}
+
+/* if *domain is non-null, it's pushed down the stack.
+ * note that the entire stack is freed if there is an error,
+ * so build added domains in a separate stack before adding them
+ *
+ * domain_specs look like
+ *
+ * [strict ][ignore ]uri[[ uri]...]
+ * e.g. "ldap:///ou=foo,o=bar?uid?sub ldap:///ou=baz,o=bar?uid?sub"
+ * "strict ldap:///ou=accounts,o=bar?uid,uidNumber?one"
+ * etc
+ *
+ * so finally strictness is per-domain
+ * but so is ignore-state, and that would be better as a per-url thing
+ */
+static int
+unique_new_domain ( unique_domain **domainp,
+ char *domain_spec,
+ ConfigArgs *c )
+{
+ char *uri_start;
+ int rc = LDAP_SUCCESS;
+ int uri_err = 0;
+ unique_domain * domain;
+ LDAPURLDesc *url_desc, *url_descs = NULL;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_new_domain <%s>\n",
+ domain_spec, 0, 0);
+
+ domain = ch_calloc ( 1, sizeof (unique_domain) );
+ ber_str2bv( domain_spec, 0, 1, &domain->domain_spec );
+
+ uri_start = domain_spec;
+ if ( strncasecmp ( uri_start, "ignore ",
+ STRLENOF( "ignore " ) ) == 0 ) {
+ domain->ignore = 1;
+ uri_start += STRLENOF( "ignore " );
+ }
+ if ( strncasecmp ( uri_start, "strict ",
+ STRLENOF( "strict " ) ) == 0 ) {
+ domain->strict = 1;
+ uri_start += STRLENOF( "strict " );
+ if ( !domain->ignore
+ && strncasecmp ( uri_start, "ignore ",
+ STRLENOF( "ignore " ) ) == 0 ) {
+ domain->ignore = 1;
+ uri_start += STRLENOF( "ignore " );
+ }
+ }
+ rc = ldap_url_parselist_ext ( &url_descs, uri_start, " ", 0 );
+ if ( rc ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "<%s> invalid ldap urilist",
+ uri_start );
+ rc = ARG_BAD_CONF;
+ goto exit;
+ }
+
+ for ( url_desc = url_descs;
+ url_desc;
+ url_desc = url_desc->lud_next ) {
+ rc = unique_new_domain_uri ( &domain->uri,
+ url_desc,
+ c );
+ if ( rc ) {
+ rc = ARG_BAD_CONF;
+ uri_err = 1;
+ goto exit;
+ }
+ }
+
+exit:
+ if ( url_descs ) ldap_free_urldesc ( url_descs );
+ domain->next = *domainp;
+ *domainp = domain;
+ if ( rc ) {
+ Debug ( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ unique_free_domain ( domain );
+ *domainp = NULL;
+ }
+ return rc;
+}
+
+static int
+unique_cf_base( ConfigArgs *c )
+{
+ BackendDB *be = (BackendDB *)c->be;
+ slap_overinst *on = (slap_overinst *)c->bi;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ int rc = ARG_BAD_CONF;
+
+ switch ( c->op ) {
+ case SLAP_CONFIG_EMIT:
+ rc = 0;
+ if ( legacy && legacy->uri && legacy->uri->dn.bv_val ) {
+ rc = value_add_one ( &c->rvalue_vals,
+ &legacy->uri->dn );
+ if ( rc ) return rc;
+ rc = value_add_one ( &c->rvalue_nvals,
+ &legacy->uri->ndn );
+ if ( rc ) return rc;
+ }
+ break;
+ case LDAP_MOD_DELETE:
+ assert ( legacy && legacy->uri && legacy->uri->dn.bv_val );
+ rc = 0;
+ ch_free ( legacy->uri->dn.bv_val );
+ ch_free ( legacy->uri->ndn.bv_val );
+ BER_BVZERO( &legacy->uri->dn );
+ BER_BVZERO( &legacy->uri->ndn );
+ if ( !legacy->uri->attrs ) {
+ unique_free_domain_uri ( legacy->uri );
+ legacy->uri = NULL;
+ }
+ if ( !legacy->uri && !private->legacy_strict_set ) {
+ unique_free_domain ( legacy );
+ private->legacy = legacy = NULL;
+ }
+ break;
+ case LDAP_MOD_ADD:
+ case SLAP_CONFIG_ADD:
+ if ( domains ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "cannot set legacy attrs when URIs are present" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ if ( be->be_nsuffix == NULL ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "suffix must be set" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ if ( !dnIsSuffix ( &c->value_ndn,
+ &be->be_nsuffix[0] ) ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "dn is not a suffix of backend base" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ if ( !legacy ) {
+ unique_new_domain ( &private->legacy,
+ UNIQUE_DEFAULT_URI,
+ c );
+ legacy = private->legacy;
+ }
+ if ( !legacy->uri )
+ unique_new_domain_uri_basic ( &legacy->uri, c );
+ ch_free ( legacy->uri->dn.bv_val );
+ ch_free ( legacy->uri->ndn.bv_val );
+ legacy->uri->dn = c->value_dn;
+ legacy->uri->ndn = c->value_ndn;
+ rc = 0;
+ break;
+ default:
+ abort();
+ }
+
+ if ( rc ) {
+ ch_free( c->value_dn.bv_val );
+ BER_BVZERO( &c->value_dn );
+ ch_free( c->value_ndn.bv_val );
+ BER_BVZERO( &c->value_ndn );
+ }
+
+ return rc;
+}
+
+static int
+unique_cf_attrs( ConfigArgs *c )
+{
+ slap_overinst *on = (slap_overinst *)c->bi;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ unique_attrs *new_attrs = NULL;
+ unique_attrs *attr, *next_attr, *reverse_attrs;
+ unique_attrs **attrp;
+ int rc = ARG_BAD_CONF;
+ int i;
+
+ switch ( c->op ) {
+ case SLAP_CONFIG_EMIT:
+ if ( legacy
+ && (c->type == UNIQUE_IGNORE) == legacy->ignore
+ && legacy->uri )
+ for ( attr = legacy->uri->attrs;
+ attr;
+ attr = attr->next )
+ value_add_one( &c->rvalue_vals,
+ &attr->attr->ad_cname );
+ rc = 0;
+ break;
+ case LDAP_MOD_DELETE:
+ if ( legacy
+ && (c->type == UNIQUE_IGNORE) == legacy->ignore
+ && legacy->uri
+ && legacy->uri->attrs) {
+ if ( c->valx < 0 ) { /* delete all */
+ for ( attr = legacy->uri->attrs;
+ attr;
+ attr = next_attr ) {
+ next_attr = attr->next;
+ ch_free ( attr );
+ }
+ legacy->uri->attrs = NULL;
+ } else { /* delete by index */
+ attrp = &legacy->uri->attrs;
+ for ( i=0; i < c->valx; ++i )
+ attrp = &(*attrp)->next;
+ attr = *attrp;
+ *attrp = attr->next;
+ ch_free (attr);
+ }
+ if ( !legacy->uri->attrs
+ && !legacy->uri->dn.bv_val ) {
+ unique_free_domain_uri ( legacy->uri );
+ legacy->uri = NULL;
+ }
+ if ( !legacy->uri && !private->legacy_strict_set ) {
+ unique_free_domain ( legacy );
+ private->legacy = legacy = NULL;
+ }
+ }
+ rc = 0;
+ break;
+ case LDAP_MOD_ADD:
+ case SLAP_CONFIG_ADD:
+ if ( domains ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "cannot set legacy attrs when URIs are present" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ if ( legacy
+ && legacy->uri
+ && legacy->uri->attrs
+ && (c->type == UNIQUE_IGNORE) != legacy->ignore ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "cannot set both attrs and ignore-attrs" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ if ( !legacy ) {
+ unique_new_domain ( &private->legacy,
+ UNIQUE_DEFAULT_URI,
+ c );
+ legacy = private->legacy;
+ }
+ if ( !legacy->uri )
+ unique_new_domain_uri_basic ( &legacy->uri, c );
+ rc = 0;
+ for ( i=1; c->argv[i]; ++i ) {
+ AttributeDescription * ad = NULL;
+ const char * text;
+ if ( slap_str2ad ( c->argv[i], &ad, &text )
+ == LDAP_SUCCESS) {
+
+ attr = ch_calloc ( 1,
+ sizeof ( unique_attrs ) );
+ attr->attr = ad;
+ attr->next = new_attrs;
+ new_attrs = attr;
+ } else {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "unique: attribute: %s: %s",
+ c->argv[i], text );
+ for ( attr = new_attrs;
+ attr;
+ attr=next_attr ) {
+ next_attr = attr->next;
+ ch_free ( attr );
+ }
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ }
+ if ( rc ) break;
+
+ /* (nconc legacy->uri->attrs (nreverse new_attrs)) */
+ reverse_attrs = NULL;
+ for ( attr = new_attrs;
+ attr;
+ attr = next_attr ) {
+ next_attr = attr->next;
+ attr->next = reverse_attrs;
+ reverse_attrs = attr;
+ }
+ for ( attrp = &legacy->uri->attrs;
+ *attrp;
+ attrp = &(*attrp)->next ) ;
+ *attrp = reverse_attrs;
+
+ legacy->ignore = ( c->type == UNIQUE_IGNORE );
+ break;
+ default:
+ abort();
+ }
+
+ if ( rc ) {
+ Debug ( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ }
+ return rc;
+}
+
+static int
+unique_cf_strict( ConfigArgs *c )
+{
+ slap_overinst *on = (slap_overinst *)c->bi;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ int rc = ARG_BAD_CONF;
+
+ switch ( c->op ) {
+ case SLAP_CONFIG_EMIT:
+ /* We process the boolean manually instead of using
+ * ARG_ON_OFF so that we can three-state it;
+ * olcUniqueStrict is either TRUE, FALSE, or missing,
+ * and missing is necessary to add olcUniqueURIs...
+ */
+ if ( private->legacy_strict_set ) {
+ struct berval bv;
+ bv.bv_val = legacy->strict ? "TRUE" : "FALSE";
+ bv.bv_len = legacy->strict ?
+ STRLENOF("TRUE") :
+ STRLENOF("FALSE");
+ value_add_one ( &c->rvalue_vals, &bv );
+ }
+ rc = 0;
+ break;
+ case LDAP_MOD_DELETE:
+ if ( legacy ) {
+ legacy->strict = 0;
+ if ( ! legacy->uri ) {
+ unique_free_domain ( legacy );
+ private->legacy = NULL;
+ }
+ }
+ private->legacy_strict_set = 0;
+ rc = 0;
+ break;
+ case LDAP_MOD_ADD:
+ case SLAP_CONFIG_ADD:
+ if ( domains ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "cannot set legacy attrs when URIs are present" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ if ( ! legacy ) {
+ unique_new_domain ( &private->legacy,
+ UNIQUE_DEFAULT_URI,
+ c );
+ legacy = private->legacy;
+ }
+ /* ... not using ARG_ON_OFF makes this necessary too */
+ assert ( c->argc == 2 );
+ legacy->strict = (strcasecmp ( c->argv[1], "TRUE" ) == 0);
+ private->legacy_strict_set = 1;
+ rc = 0;
+ break;
+ default:
+ abort();
+ }
+
+ return rc;
+}
+
+static int
+unique_cf_uri( ConfigArgs *c )
+{
+ slap_overinst *on = (slap_overinst *)c->bi;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ unique_domain *domain = NULL, **domainp = NULL;
+ int rc = ARG_BAD_CONF;
+ int i;
+
+ switch ( c->op ) {
+ case SLAP_CONFIG_EMIT:
+ for ( domain = domains;
+ domain;
+ domain = domain->next ) {
+ rc = value_add_one ( &c->rvalue_vals,
+ &domain->domain_spec );
+ if ( rc ) break;
+ }
+ break;
+ case LDAP_MOD_DELETE:
+ if ( c->valx < 0 ) { /* delete them all! */
+ unique_free_domain ( domains );
+ private->domains = NULL;
+ } else { /* delete just one */
+ domainp = &private->domains;
+ for ( i=0; i < c->valx && *domainp; ++i )
+ domainp = &(*domainp)->next;
+
+ /* If *domainp is null, we walked off the end
+ * of the list. This happens when back-config
+ * and the overlay are out-of-sync, like when
+ * rejecting changes before ITS#4752 gets
+ * fixed.
+ *
+ * This should never happen, but will appear
+ * if you backport this version of
+ * slapo-unique without the config-undo fixes
+ *
+ * test024 Will hit this case in such a
+ * situation.
+ */
+ assert (*domainp != NULL);
+
+ domain = *domainp;
+ *domainp = domain->next;
+ domain->next = NULL;
+ unique_free_domain ( domain );
+ }
+ rc = 0;
+ break;
+
+ case SLAP_CONFIG_ADD: /* fallthrough */
+ case LDAP_MOD_ADD:
+ if ( legacy ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "cannot set Uri when legacy attrs are present" );
+ Debug ( LDAP_DEBUG_CONFIG, "unique config: %s\n",
+ c->cr_msg, NULL, NULL );
+ rc = ARG_BAD_CONF;
+ break;
+ }
+ rc = 0;
+ if ( c->line ) rc = unique_new_domain ( &domain, c->line, c );
+ else rc = unique_new_domain ( &domain, c->argv[1], c );
+ if ( rc ) break;
+ assert ( domain->next == NULL );
+ for ( domainp = &private->domains;
+ *domainp;
+ domainp = &(*domainp)->next ) ;
+ *domainp = domain;
+
+ break;
+
+ default:
+ abort ();
+ }
+
+ return rc;
+}
+
+/*
+** allocate new unique_data;
+** initialize, copy basedn;
+** store in on_bi.bi_private;
+**
+*/
+
+static int
+unique_db_init(
+ BackendDB *be,
+ ConfigReply *cr
+)
+{
+ slap_overinst *on = (slap_overinst *)be->bd_info;
+ unique_data **privatep = (unique_data **) &on->on_bi.bi_private;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_db_init\n", 0, 0, 0);
+
+ *privatep = ch_calloc ( 1, sizeof ( unique_data ) );
+
+ return 0;
+}
+
+static int
+unique_db_destroy(
+ BackendDB *be,
+ ConfigReply *cr
+)
+{
+ slap_overinst *on = (slap_overinst *)be->bd_info;
+ unique_data **privatep = (unique_data **) &on->on_bi.bi_private;
+ unique_data *private = *privatep;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_db_destroy\n", 0, 0, 0);
+
+ if ( private ) {
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+
+ unique_free_domain ( domains );
+ unique_free_domain ( legacy );
+ ch_free ( private );
+ *privatep = NULL;
+ }
+
+ return 0;
+}
+
+
+/*
+** search callback
+** if this is a REP_SEARCH, count++;
+**
+*/
+
+static int count_attr_cb(
+ Operation *op,
+ SlapReply *rs
+)
+{
+ unique_counter *uc;
+
+ /* because you never know */
+ if(!op || !rs) return(0);
+
+ /* Only search entries are interesting */
+ if(rs->sr_type != REP_SEARCH) return(0);
+
+ uc = op->o_callback->sc_private;
+
+ /* Ignore the current entry */
+ if ( dn_match( uc->ndn, &rs->sr_entry->e_nname )) return(0);
+
+ Debug(LDAP_DEBUG_TRACE, "==> count_attr_cb <%s>\n",
+ rs->sr_entry ? rs->sr_entry->e_name.bv_val : "UNKNOWN_DN", 0, 0);
+
+ uc->count++;
+
+ return(0);
+}
+
+/* count the length of one attribute ad
+ * (and all of its values b)
+ * in the proposed filter
+ */
+static int
+count_filter_len(
+ unique_domain *domain,
+ unique_domain_uri *uri,
+ AttributeDescription *ad,
+ BerVarray b
+)
+{
+ unique_attrs *attr;
+ int i;
+ int ks = 0;
+
+ while ( !is_at_operational( ad->ad_type ) ) {
+ if ( uri->attrs ) {
+ for ( attr = uri->attrs; attr; attr = attr->next ) {
+ if ( ad == attr->attr ) {
+ break;
+ }
+ }
+ if ( ( domain->ignore && attr )
+ || (!domain->ignore && !attr )) {
+ break;
+ }
+ }
+ if ( b && b[0].bv_val ) {
+ for (i = 0; b[i].bv_val; i++ ) {
+ /* note: make room for filter escaping... */
+ ks += ( 3 * b[i].bv_len ) + ad->ad_cname.bv_len + STRLENOF( "(=)" );
+ }
+ } else if ( domain->strict ) {
+ ks += ad->ad_cname.bv_len + STRLENOF( "(=*)" ); /* (attr=*) */
+ }
+ break;
+ }
+
+ return ks;
+}
+
+static char *
+build_filter(
+ unique_domain *domain,
+ unique_domain_uri *uri,
+ AttributeDescription *ad,
+ BerVarray b,
+ char *kp,
+ int ks,
+ void *ctx
+)
+{
+ unique_attrs *attr;
+ int i;
+
+ while ( !is_at_operational( ad->ad_type ) ) {
+ if ( uri->attrs ) {
+ for ( attr = uri->attrs; attr; attr = attr->next ) {
+ if ( ad == attr->attr ) {
+ break;
+ }
+ }
+ if ( ( domain->ignore && attr )
+ || (!domain->ignore && !attr )) {
+ break;
+ }
+ }
+ if ( b && b[0].bv_val ) {
+ for ( i = 0; b[i].bv_val; i++ ) {
+ struct berval bv;
+ int len;
+
+ ldap_bv2escaped_filter_value_x( &b[i], &bv, 1, ctx );
+ if (!b[i].bv_len)
+ bv.bv_val = b[i].bv_val;
+ len = snprintf( kp, ks, "(%s=%s)", ad->ad_cname.bv_val, bv.bv_val );
+ assert( len >= 0 && len < ks );
+ kp += len;
+ if ( bv.bv_val != b[i].bv_val ) {
+ ber_memfree_x( bv.bv_val, ctx );
+ }
+ }
+ } else if ( domain->strict ) {
+ int len;
+ len = snprintf( kp, ks, "(%s=*)", ad->ad_cname.bv_val );
+ assert( len >= 0 && len < ks );
+ kp += len;
+ }
+ break;
+ }
+ return kp;
+}
+
+static int
+unique_search(
+ Operation *op,
+ Operation *nop,
+ struct berval * dn,
+ int scope,
+ SlapReply *rs,
+ struct berval *key
+)
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ SlapReply nrs = { REP_RESULT };
+ slap_callback cb = { NULL, NULL, NULL, NULL }; /* XXX */
+ unique_counter uq = { NULL, 0 };
+ int rc;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_search %s\n", key->bv_val, 0, 0);
+
+ nop->ors_filter = str2filter_x(nop, key->bv_val);
+ if(nop->ors_filter == NULL) {
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
+ send_ldap_error(op, rs, LDAP_OTHER,
+ "unique_search invalid filter");
+ return(rs->sr_err);
+ }
+
+ nop->ors_filterstr = *key;
+
+ cb.sc_response = (slap_response*)count_attr_cb;
+ cb.sc_private = &uq;
+ nop->o_callback = &cb;
+ nop->o_tag = LDAP_REQ_SEARCH;
+ nop->ors_scope = scope;
+ nop->ors_deref = LDAP_DEREF_NEVER;
+ nop->ors_limit = NULL;
+ nop->ors_slimit = SLAP_NO_LIMIT;
+ nop->ors_tlimit = SLAP_NO_LIMIT;
+ nop->ors_attrs = slap_anlist_no_attrs;
+ nop->ors_attrsonly = 1;
+
+ uq.ndn = &op->o_req_ndn;
+
+ nop->o_req_ndn = *dn;
+ nop->o_ndn = op->o_bd->be_rootndn;
+
+ nop->o_bd = on->on_info->oi_origdb;
+ rc = nop->o_bd->be_search(nop, &nrs);
+ filter_free_x(nop, nop->ors_filter, 1);
+ op->o_tmpfree( key->bv_val, op->o_tmpmemctx );
+
+ if(rc != LDAP_SUCCESS && rc != LDAP_NO_SUCH_OBJECT) {
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
+ send_ldap_error(op, rs, rc, "unique_search failed");
+ return(rs->sr_err);
+ }
+
+ Debug(LDAP_DEBUG_TRACE, "=> unique_search found %d records\n", uq.count, 0, 0);
+
+ if(uq.count) {
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
+ send_ldap_error(op, rs, LDAP_CONSTRAINT_VIOLATION,
+ "some attributes not unique");
+ return(rs->sr_err);
+ }
+
+ return(SLAP_CB_CONTINUE);
+}
+
+static int
+unique_add(
+ Operation *op,
+ SlapReply *rs
+)
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ unique_domain *domain;
+ Operation nop = *op;
+ Attribute *a;
+ char *key, *kp;
+ struct berval bvkey;
+ int rc = SLAP_CB_CONTINUE;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_add <%s>\n",
+ op->o_req_dn.bv_val, 0, 0);
+
+ /* skip the checks if the operation has manageDsaIt control in it
+ * (for replication) */
+ if ( op->o_managedsait > SLAP_CONTROL_IGNORED
+ && access_allowed ( op, op->ora_e,
+ slap_schema.si_ad_entry, NULL,
+ ACL_MANAGE, NULL ) ) {
+ Debug(LDAP_DEBUG_TRACE, "unique_add: administrative bypass, skipping\n", 0, 0, 0);
+ return rc;
+ }
+
+ for ( domain = legacy ? legacy : domains;
+ domain;
+ domain = domain->next )
+ {
+ unique_domain_uri *uri;
+
+ for ( uri = domain->uri;
+ uri;
+ uri = uri->next )
+ {
+ int len;
+ int ks = 0;
+
+ if ( uri->ndn.bv_val
+ && !dnIsSuffix( &op->o_req_ndn, &uri->ndn ))
+ continue;
+
+ if ( uri->f ) {
+ if ( test_filter( NULL, op->ora_e, uri->f )
+ == LDAP_COMPARE_FALSE )
+ {
+ Debug( LDAP_DEBUG_TRACE,
+ "==> unique_add_skip<%s>\n",
+ op->o_req_dn.bv_val, 0, 0 );
+ continue;
+ }
+ }
+
+ if(!(a = op->ora_e->e_attrs)) {
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
+ send_ldap_error(op, rs, LDAP_INVALID_SYNTAX,
+ "unique_add() got null op.ora_e.e_attrs");
+ rc = rs->sr_err;
+ break;
+
+ } else {
+ for(; a; a = a->a_next) {
+ ks += count_filter_len ( domain,
+ uri,
+ a->a_desc,
+ a->a_vals);
+ }
+ }
+
+ /* skip this domain-uri if it isn't involved */
+ if ( !ks ) continue;
+
+ /* terminating NUL */
+ ks += sizeof("(|)");
+
+ if ( uri->filter.bv_val && uri->filter.bv_len )
+ ks += uri->filter.bv_len + STRLENOF ("(&)");
+ kp = key = op->o_tmpalloc(ks, op->o_tmpmemctx);
+
+ if ( uri->filter.bv_val && uri->filter.bv_len ) {
+ len = snprintf (kp, ks, "(&%s", uri->filter.bv_val);
+ assert( len >= 0 && len < ks );
+ kp += len;
+ }
+ len = snprintf(kp, ks - (kp - key), "(|");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+
+ for(a = op->ora_e->e_attrs; a; a = a->a_next)
+ kp = build_filter(domain,
+ uri,
+ a->a_desc,
+ a->a_vals,
+ kp,
+ ks - ( kp - key ),
+ op->o_tmpmemctx);
+
+ len = snprintf(kp, ks - (kp - key), ")");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+ if ( uri->filter.bv_val && uri->filter.bv_len ) {
+ len = snprintf(kp, ks - (kp - key), ")");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+ }
+ bvkey.bv_val = key;
+ bvkey.bv_len = kp - key;
+
+ rc = unique_search ( op,
+ &nop,
+ uri->ndn.bv_val ?
+ &uri->ndn :
+ &op->o_bd->be_nsuffix[0],
+ uri->scope,
+ rs,
+ &bvkey);
+
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+
+ return rc;
+}
+
+
+static int
+unique_modify(
+ Operation *op,
+ SlapReply *rs
+)
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ unique_domain *domain;
+ Operation nop = *op;
+ Modifications *m;
+ Entry *e = NULL;
+ char *key, *kp;
+ struct berval bvkey;
+ int rc = SLAP_CB_CONTINUE;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_modify <%s>\n",
+ op->o_req_dn.bv_val, 0, 0);
+
+ if ( !op->orm_modlist ) {
+ Debug(LDAP_DEBUG_TRACE, "unique_modify: got empty modify op\n", 0, 0, 0);
+ return rc;
+ }
+
+ /* skip the checks if the operation has manageDsaIt control in it
+ * (for replication) */
+ if ( op->o_managedsait > SLAP_CONTROL_IGNORED
+ && overlay_entry_get_ov(op, &op->o_req_ndn, NULL, NULL, 0, &e, on) == LDAP_SUCCESS
+ && e
+ && access_allowed ( op, e,
+ slap_schema.si_ad_entry, NULL,
+ ACL_MANAGE, NULL ) ) {
+ Debug(LDAP_DEBUG_TRACE, "unique_modify: administrative bypass, skipping\n", 0, 0, 0);
+ overlay_entry_release_ov( op, e, 0, on );
+ return rc;
+ }
+ if ( e ) {
+ overlay_entry_release_ov( op, e, 0, on );
+ }
+
+ for ( domain = legacy ? legacy : domains;
+ domain;
+ domain = domain->next )
+ {
+ unique_domain_uri *uri;
+
+ for ( uri = domain->uri;
+ uri;
+ uri = uri->next )
+ {
+ int len;
+ int ks = 0;
+
+ if ( uri->ndn.bv_val
+ && !dnIsSuffix( &op->o_req_ndn, &uri->ndn ))
+ continue;
+
+ for ( m = op->orm_modlist; m; m = m->sml_next)
+ if ( (m->sml_op & LDAP_MOD_OP)
+ != LDAP_MOD_DELETE )
+ ks += count_filter_len
+ ( domain,
+ uri,
+ m->sml_desc,
+ m->sml_values);
+
+ /* skip this domain-uri if it isn't involved */
+ if ( !ks ) continue;
+
+ /* terminating NUL */
+ ks += sizeof("(|)");
+
+ if ( uri->filter.bv_val && uri->filter.bv_len )
+ ks += uri->filter.bv_len + STRLENOF ("(&)");
+ kp = key = op->o_tmpalloc(ks, op->o_tmpmemctx);
+
+ if ( uri->filter.bv_val && uri->filter.bv_len ) {
+ len = snprintf(kp, ks, "(&%s", uri->filter.bv_val);
+ assert( len >= 0 && len < ks );
+ kp += len;
+ }
+ len = snprintf(kp, ks - (kp - key), "(|");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+
+ for(m = op->orm_modlist; m; m = m->sml_next)
+ if ( (m->sml_op & LDAP_MOD_OP)
+ != LDAP_MOD_DELETE )
+ kp = build_filter ( domain,
+ uri,
+ m->sml_desc,
+ m->sml_values,
+ kp,
+ ks - (kp - key),
+ op->o_tmpmemctx );
+
+ len = snprintf(kp, ks - (kp - key), ")");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+ if ( uri->filter.bv_val && uri->filter.bv_len ) {
+ len = snprintf (kp, ks - (kp - key), ")");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+ }
+ bvkey.bv_val = key;
+ bvkey.bv_len = kp - key;
+
+ rc = unique_search ( op,
+ &nop,
+ uri->ndn.bv_val ?
+ &uri->ndn :
+ &op->o_bd->be_nsuffix[0],
+ uri->scope,
+ rs,
+ &bvkey);
+
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+
+ return rc;
+}
+
+
+static int
+unique_modrdn(
+ Operation *op,
+ SlapReply *rs
+)
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ unique_data *private = (unique_data *) on->on_bi.bi_private;
+ unique_domain *domains = private->domains;
+ unique_domain *legacy = private->legacy;
+ unique_domain *domain;
+ Operation nop = *op;
+ Entry *e = NULL;
+ char *key, *kp;
+ struct berval bvkey;
+ LDAPRDN newrdn;
+ struct berval bv[2];
+ int rc = SLAP_CB_CONTINUE;
+
+ Debug(LDAP_DEBUG_TRACE, "==> unique_modrdn <%s> <%s>\n",
+ op->o_req_dn.bv_val, op->orr_newrdn.bv_val, 0);
+
+ /* skip the checks if the operation has manageDsaIt control in it
+ * (for replication) */
+ if ( op->o_managedsait > SLAP_CONTROL_IGNORED
+ && overlay_entry_get_ov(op, &op->o_req_ndn, NULL, NULL, 0, &e, on) == LDAP_SUCCESS
+ && e
+ && access_allowed ( op, e,
+ slap_schema.si_ad_entry, NULL,
+ ACL_MANAGE, NULL ) ) {
+ Debug(LDAP_DEBUG_TRACE, "unique_modrdn: administrative bypass, skipping\n", 0, 0, 0);
+ overlay_entry_release_ov( op, e, 0, on );
+ return rc;
+ }
+ if ( e ) {
+ overlay_entry_release_ov( op, e, 0, on );
+ }
+
+ for ( domain = legacy ? legacy : domains;
+ domain;
+ domain = domain->next )
+ {
+ unique_domain_uri *uri;
+
+ for ( uri = domain->uri;
+ uri;
+ uri = uri->next )
+ {
+ int i, len;
+ int ks = 0;
+
+ if ( uri->ndn.bv_val
+ && !dnIsSuffix( &op->o_req_ndn, &uri->ndn )
+ && (!op->orr_nnewSup
+ || !dnIsSuffix( op->orr_nnewSup, &uri->ndn )))
+ continue;
+
+ if ( ldap_bv2rdn_x ( &op->oq_modrdn.rs_newrdn,
+ &newrdn,
+ (char **)&rs->sr_text,
+ LDAP_DN_FORMAT_LDAP,
+ op->o_tmpmemctx ) ) {
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
+ send_ldap_error(op, rs, LDAP_INVALID_SYNTAX,
+ "unknown type(s) used in RDN");
+ rc = rs->sr_err;
+ break;
+ }
+
+ rc = SLAP_CB_CONTINUE;
+ for ( i=0; newrdn[i]; i++) {
+ AttributeDescription *ad = NULL;
+ if ( slap_bv2ad( &newrdn[i]->la_attr, &ad, &rs->sr_text )) {
+ ldap_rdnfree_x( newrdn, op->o_tmpmemctx );
+ rs->sr_err = LDAP_INVALID_SYNTAX;
+ send_ldap_result( op, rs );
+ rc = rs->sr_err;
+ break;
+ }
+ newrdn[i]->la_private = ad;
+ }
+ if ( rc != SLAP_CB_CONTINUE ) break;
+
+ bv[1].bv_val = NULL;
+ bv[1].bv_len = 0;
+
+ for ( i=0; newrdn[i]; i++ ) {
+ bv[0] = newrdn[i]->la_value;
+ ks += count_filter_len ( domain,
+ uri,
+ newrdn[i]->la_private,
+ bv);
+ }
+
+ /* skip this domain if it isn't involved */
+ if ( !ks ) continue;
+
+ /* terminating NUL */
+ ks += sizeof("(|)");
+
+ if ( uri->filter.bv_val && uri->filter.bv_len )
+ ks += uri->filter.bv_len + STRLENOF ("(&)");
+ kp = key = op->o_tmpalloc(ks, op->o_tmpmemctx);
+
+ if ( uri->filter.bv_val && uri->filter.bv_len ) {
+ len = snprintf(kp, ks, "(&%s", uri->filter.bv_val);
+ assert( len >= 0 && len < ks );
+ kp += len;
+ }
+ len = snprintf(kp, ks - (kp - key), "(|");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+
+ for ( i=0; newrdn[i]; i++) {
+ bv[0] = newrdn[i]->la_value;
+ kp = build_filter ( domain,
+ uri,
+ newrdn[i]->la_private,
+ bv,
+ kp,
+ ks - (kp - key ),
+ op->o_tmpmemctx);
+ }
+
+ len = snprintf(kp, ks - (kp - key), ")");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+ if ( uri->filter.bv_val && uri->filter.bv_len ) {
+ len = snprintf (kp, ks - (kp - key), ")");
+ assert( len >= 0 && len < ks - (kp - key) );
+ kp += len;
+ }
+ bvkey.bv_val = key;
+ bvkey.bv_len = kp - key;
+
+ rc = unique_search ( op,
+ &nop,
+ uri->ndn.bv_val ?
+ &uri->ndn :
+ &op->o_bd->be_nsuffix[0],
+ uri->scope,
+ rs,
+ &bvkey);
+
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+
+ return rc;
+}
+
+/*
+** init_module is last so the symbols resolve "for free" --
+** it expects to be called automagically during dynamic module initialization
+*/
+
+int
+unique_initialize()
+{
+ int rc;
+
+ /* statically declared just after the #includes at top */
+ memset (&unique, 0, sizeof(unique));
+
+ unique.on_bi.bi_type = "unique";
+ unique.on_bi.bi_db_init = unique_db_init;
+ unique.on_bi.bi_db_destroy = unique_db_destroy;
+ unique.on_bi.bi_op_add = unique_add;
+ unique.on_bi.bi_op_modify = unique_modify;
+ unique.on_bi.bi_op_modrdn = unique_modrdn;
+
+ unique.on_bi.bi_cf_ocs = uniqueocs;
+ rc = config_register_schema( uniquecfg, uniqueocs );
+ if ( rc ) return rc;
+
+ return(overlay_register(&unique));
+}
+
+#if SLAPD_OVER_UNIQUE == SLAPD_MOD_DYNAMIC && defined(PIC)
+int init_module(int argc, char *argv[]) {
+ return unique_initialize();
+}
+#endif
+
+#endif /* SLAPD_OVER_UNIQUE */