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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /servers/slapd/dn.c
parentInitial commit. (diff)
downloadopenldap-5ea77a75dd2d2158401331879f3c8f47940a732c.tar.xz
openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/dn.c')
-rw-r--r--servers/slapd/dn.c1333
1 files changed, 1333 insertions, 0 deletions
diff --git a/servers/slapd/dn.c b/servers/slapd/dn.c
new file mode 100644
index 0000000..9b82f55
--- /dev/null
+++ b/servers/slapd/dn.c
@@ -0,0 +1,1333 @@
+/* dn.c - routines for dealing with distinguished names */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 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>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/ctype.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "slap.h"
+#include "lutil.h"
+
+/*
+ * The DN syntax-related functions take advantage of the dn representation
+ * handling functions ldap_str2dn/ldap_dn2str. The latter are not schema-
+ * aware, so the attributes and their values need be validated (and possibly
+ * normalized). In the current implementation the required validation/nor-
+ * malization/"pretty"ing are done on newly created DN structural represen-
+ * tations; however the idea is to move towards DN handling in structural
+ * representation instead of the current string representation. To this
+ * purpose, we need to do only the required operations and keep track of
+ * what has been done to minimize their impact on performances.
+ *
+ * Developers are strongly encouraged to use this feature, to speed-up
+ * its stabilization.
+ */
+
+#define AVA_PRIVATE( ava ) ( ( AttributeDescription * )(ava)->la_private )
+
+int slap_DN_strict = SLAP_AD_NOINSERT;
+
+static int
+LDAPRDN_validate( LDAPRDN rdn )
+{
+ int iAVA;
+ int rc;
+
+ assert( rdn != NULL );
+
+ for ( iAVA = 0; rdn[ iAVA ]; iAVA++ ) {
+ LDAPAVA *ava = rdn[ iAVA ];
+ AttributeDescription *ad;
+ slap_syntax_validate_func *validate = NULL;
+
+ assert( ava != NULL );
+
+ if ( ( ad = AVA_PRIVATE( ava ) ) == NULL ) {
+ const char *text = NULL;
+
+ rc = slap_bv2ad( &ava->la_attr, &ad, &text );
+ if ( rc != LDAP_SUCCESS ) {
+ rc = slap_bv2undef_ad( &ava->la_attr,
+ &ad, &text,
+ SLAP_AD_PROXIED|slap_DN_strict );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ ava->la_private = ( void * )ad;
+ }
+
+ /*
+ * Do not allow X-ORDERED 'VALUES' naming attributes
+ */
+ if ( ad->ad_type->sat_flags & SLAP_AT_ORDERED_VAL ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /*
+ * Replace attr oid/name with the canonical name
+ */
+ ava->la_attr = ad->ad_cname;
+
+ validate = ad->ad_type->sat_syntax->ssyn_validate;
+
+ if ( validate ) {
+ /*
+ * validate value by validate function
+ */
+ rc = ( *validate )( ad->ad_type->sat_syntax,
+ &ava->la_value );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+ }
+
+ return LDAP_SUCCESS;
+}
+
+/*
+ * In-place, schema-aware validation of the
+ * structural representation of a distinguished name.
+ */
+static int
+LDAPDN_validate( LDAPDN dn )
+{
+ int iRDN;
+ int rc;
+
+ assert( dn != NULL );
+
+ for ( iRDN = 0; dn[ iRDN ]; iRDN++ ) {
+ rc = LDAPRDN_validate( dn[ iRDN ] );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+ }
+
+ return LDAP_SUCCESS;
+}
+
+/*
+ * dn validate routine
+ */
+int
+dnValidate(
+ Syntax *syntax,
+ struct berval *in )
+{
+ int rc;
+ LDAPDN dn = NULL;
+
+ assert( in != NULL );
+
+ if ( in->bv_len == 0 ) {
+ return LDAP_SUCCESS;
+
+ } else if ( in->bv_len > SLAP_LDAPDN_MAXLEN ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ rc = ldap_bv2dn( in, &dn, LDAP_DN_FORMAT_LDAP );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( in->bv_val ) == in->bv_len );
+
+ /*
+ * Schema-aware validate
+ */
+ rc = LDAPDN_validate( dn );
+ ldap_dnfree( dn );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ return LDAP_SUCCESS;
+}
+
+int
+rdnValidate(
+ Syntax *syntax,
+ struct berval *in )
+{
+ int rc;
+ LDAPRDN rdn;
+ char* p;
+
+ assert( in != NULL );
+ if ( in->bv_len == 0 ) {
+ return LDAP_SUCCESS;
+
+ } else if ( in->bv_len > SLAP_LDAPDN_MAXLEN ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ rc = ldap_bv2rdn_x( in , &rdn, (char **) &p,
+ LDAP_DN_FORMAT_LDAP, NULL);
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( in->bv_val ) == in->bv_len );
+
+ /*
+ * Schema-aware validate
+ */
+ rc = LDAPRDN_validate( rdn );
+ ldap_rdnfree( rdn );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ return LDAP_SUCCESS;
+}
+
+
+/*
+ * AVA sorting inside a RDN
+ *
+ * Rule: sort attributeTypes in alphabetical order.
+ *
+ * Note: the sorting can be slightly improved by sorting first
+ * by attribute type length, then by alphabetical order.
+ *
+ * uses an insertion sort; should be fine since the number of AVAs in
+ * a RDN should be limited.
+ */
+static int
+AVA_Sort( LDAPRDN rdn, int nAVAs )
+{
+ LDAPAVA *ava_i;
+ int i;
+ int rc = LDAP_SUCCESS;
+
+ assert( rdn != NULL );
+
+ for ( i = 1; i < nAVAs; i++ ) {
+ LDAPAVA *ava_j;
+ int j;
+
+ ava_i = rdn[ i ];
+ for ( j = i-1; j >=0; j-- ) {
+ int a;
+
+ ava_j = rdn[ j ];
+ a = strcmp( ava_i->la_attr.bv_val, ava_j->la_attr.bv_val );
+
+ /* RFC4512 does not allow multiple AVAs
+ * with the same attribute type in RDN (ITS#5968) */
+ if ( a == 0 )
+ rc = LDAP_INVALID_DN_SYNTAX;
+
+ if ( a > 0 )
+ break;
+
+ rdn[ j+1 ] = rdn[ j ];
+ }
+ rdn[ j+1 ] = ava_i;
+ }
+ return rc;
+}
+
+static int
+LDAPRDN_rewrite( LDAPRDN rdn, unsigned flags, void *ctx )
+{
+
+ int rc, iAVA, do_sort = 0;
+
+ for ( iAVA = 0; rdn[ iAVA ]; iAVA++ ) {
+ LDAPAVA *ava = rdn[ iAVA ];
+ AttributeDescription *ad;
+ slap_syntax_validate_func *validf = NULL;
+ slap_mr_normalize_func *normf = NULL;
+ slap_syntax_transform_func *transf = NULL;
+ MatchingRule *mr = NULL;
+ struct berval bv = BER_BVNULL;
+
+ assert( ava != NULL );
+
+ if ( ( ad = AVA_PRIVATE( ava ) ) == NULL ) {
+ const char *text = NULL;
+
+ rc = slap_bv2ad( &ava->la_attr, &ad, &text );
+ if ( rc != LDAP_SUCCESS ) {
+ rc = slap_bv2undef_ad( &ava->la_attr,
+ &ad, &text,
+ SLAP_AD_PROXIED|slap_DN_strict );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ ava->la_private = ( void * )ad;
+ do_sort = 1;
+ }
+
+ /*
+ * Replace attr oid/name with the canonical name
+ */
+ ava->la_attr = ad->ad_cname;
+
+ if( ava->la_flags & LDAP_AVA_BINARY ) {
+ /* AVA is binary encoded, not supported */
+ return LDAP_INVALID_SYNTAX;
+
+ /* Do not allow X-ORDERED 'VALUES' naming attributes */
+ } else if( ad->ad_type->sat_flags & SLAP_AT_ORDERED_VAL ) {
+ return LDAP_INVALID_SYNTAX;
+
+ } else if( flags & SLAP_LDAPDN_PRETTY ) {
+ transf = ad->ad_type->sat_syntax->ssyn_pretty;
+ if( !transf ) {
+ validf = ad->ad_type->sat_syntax->ssyn_validate;
+ }
+ } else { /* normalization */
+ validf = ad->ad_type->sat_syntax->ssyn_validate;
+ mr = ad->ad_type->sat_equality;
+ if( mr && (!( mr->smr_usage & SLAP_MR_MUTATION_NORMALIZER ))) {
+ normf = mr->smr_normalize;
+ }
+ }
+
+ if ( validf ) {
+ /* validate value before normalization */
+ rc = ( *validf )( ad->ad_type->sat_syntax,
+ ava->la_value.bv_len
+ ? &ava->la_value
+ : (struct berval *) &slap_empty_bv );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ if ( transf ) {
+ /*
+ * transform value by pretty function
+ * if value is empty, use empty_bv
+ */
+ rc = ( *transf )( ad->ad_type->sat_syntax,
+ ava->la_value.bv_len
+ ? &ava->la_value
+ : (struct berval *) &slap_empty_bv,
+ &bv, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ if ( normf ) {
+ /*
+ * normalize value
+ * if value is empty, use empty_bv
+ */
+ rc = ( *normf )(
+ SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
+ ad->ad_type->sat_syntax,
+ mr,
+ ava->la_value.bv_len
+ ? &ava->la_value
+ : (struct berval *) &slap_empty_bv,
+ &bv, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+
+ if( bv.bv_val ) {
+ if ( ava->la_flags & LDAP_AVA_FREE_VALUE )
+ ber_memfree_x( ava->la_value.bv_val, ctx );
+ ava->la_value = bv;
+ ava->la_flags |= LDAP_AVA_FREE_VALUE;
+ }
+ /* reject empty values */
+ if (!ava->la_value.bv_len) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+ rc = LDAP_SUCCESS;
+
+ if ( do_sort ) {
+ rc = AVA_Sort( rdn, iAVA );
+ }
+
+ return rc;
+}
+
+/*
+ * In-place, schema-aware normalization / "pretty"ing of the
+ * structural representation of a distinguished name.
+ */
+static int
+LDAPDN_rewrite( LDAPDN dn, unsigned flags, void *ctx )
+{
+ int iRDN;
+ int rc;
+
+ assert( dn != NULL );
+
+ for ( iRDN = 0; dn[ iRDN ]; iRDN++ ) {
+ rc = LDAPRDN_rewrite( dn[ iRDN ], flags, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+ }
+
+ return LDAP_SUCCESS;
+}
+
+int
+dnNormalize(
+ slap_mask_t use,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *val,
+ struct berval *out,
+ void *ctx)
+{
+ assert( val != NULL );
+ assert( out != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, ">>> dnNormalize: <%s>\n", val->bv_val ? val->bv_val : "" );
+
+ if ( val->bv_len != 0 ) {
+ LDAPDN dn = NULL;
+ int rc;
+
+ /*
+ * Go to structural representation
+ */
+ rc = ldap_bv2dn_x( val, &dn, LDAP_DN_FORMAT_LDAP, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( val->bv_val ) == val->bv_len );
+
+ /*
+ * Schema-aware rewrite
+ */
+ if ( LDAPDN_rewrite( dn, 0, ctx ) != LDAP_SUCCESS ) {
+ ldap_dnfree_x( dn, ctx );
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /*
+ * Back to string representation
+ */
+ rc = ldap_dn2bv_x( dn, out,
+ LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY, ctx );
+
+ ldap_dnfree_x( dn, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ } else {
+ ber_dupbv_x( out, val, ctx );
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<<< dnNormalize: <%s>\n", out->bv_val ? out->bv_val : "" );
+
+ return LDAP_SUCCESS;
+}
+
+int
+rdnNormalize(
+ slap_mask_t use,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *val,
+ struct berval *out,
+ void *ctx)
+{
+ assert( val != NULL );
+ assert( out != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, ">>> dnNormalize: <%s>\n", val->bv_val ? val->bv_val : "" );
+ if ( val->bv_len != 0 ) {
+ LDAPRDN rdn = NULL;
+ int rc;
+ char* p;
+
+ /*
+ * Go to structural representation
+ */
+ rc = ldap_bv2rdn_x( val , &rdn, (char **) &p,
+ LDAP_DN_FORMAT_LDAP, ctx);
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( val->bv_val ) == val->bv_len );
+
+ /*
+ * Schema-aware rewrite
+ */
+ if ( LDAPRDN_rewrite( rdn, 0, ctx ) != LDAP_SUCCESS ) {
+ ldap_rdnfree_x( rdn, ctx );
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /*
+ * Back to string representation
+ */
+ rc = ldap_rdn2bv_x( rdn, out,
+ LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY, ctx );
+
+ ldap_rdnfree_x( rdn, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ } else {
+ ber_dupbv_x( out, val, ctx );
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<<< dnNormalize: <%s>\n", out->bv_val ? out->bv_val : "" );
+
+ return LDAP_SUCCESS;
+}
+
+int
+dnPretty(
+ Syntax *syntax,
+ struct berval *val,
+ struct berval *out,
+ void *ctx)
+{
+ assert( val != NULL );
+ assert( out != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, ">>> dnPretty: <%s>\n", val->bv_val ? val->bv_val : "" );
+
+ if ( val->bv_len == 0 ) {
+ ber_dupbv_x( out, val, ctx );
+
+ } else if ( val->bv_len > SLAP_LDAPDN_MAXLEN ) {
+ return LDAP_INVALID_SYNTAX;
+
+ } else {
+ LDAPDN dn = NULL;
+ int rc;
+
+ /* FIXME: should be liberal in what we accept */
+ rc = ldap_bv2dn_x( val, &dn, LDAP_DN_FORMAT_LDAP, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( val->bv_val ) == val->bv_len );
+
+ /*
+ * Schema-aware rewrite
+ */
+ if ( LDAPDN_rewrite( dn, SLAP_LDAPDN_PRETTY, ctx ) != LDAP_SUCCESS ) {
+ ldap_dnfree_x( dn, ctx );
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /* FIXME: not sure why the default isn't pretty */
+ /* RE: the default is the form that is used as
+ * an internal representation; the pretty form
+ * is a variant */
+ rc = ldap_dn2bv_x( dn, out,
+ LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY, ctx );
+
+ ldap_dnfree_x( dn, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<<< dnPretty: <%s>\n", out->bv_val ? out->bv_val : "" );
+
+ return LDAP_SUCCESS;
+}
+
+int
+rdnPretty(
+ Syntax *syntax,
+ struct berval *val,
+ struct berval *out,
+ void *ctx)
+{
+ assert( val != NULL );
+ assert( out != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, ">>> rdnPretty: <%s>\n", val->bv_val ? val->bv_val : "" );
+
+ if ( val->bv_len == 0 ) {
+ ber_dupbv_x( out, val, ctx );
+
+ } else if ( val->bv_len > SLAP_LDAPDN_MAXLEN ) {
+ return LDAP_INVALID_SYNTAX;
+
+ } else {
+ LDAPRDN rdn = NULL;
+ int rc;
+ char* p;
+
+ /* FIXME: should be liberal in what we accept */
+ rc = ldap_bv2rdn_x( val , &rdn, (char **) &p,
+ LDAP_DN_FORMAT_LDAP, ctx);
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( val->bv_val ) == val->bv_len );
+
+ /*
+ * Schema-aware rewrite
+ */
+ if ( LDAPRDN_rewrite( rdn, SLAP_LDAPDN_PRETTY, ctx ) != LDAP_SUCCESS ) {
+ ldap_rdnfree_x( rdn, ctx );
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /* FIXME: not sure why the default isn't pretty */
+ /* RE: the default is the form that is used as
+ * an internal representation; the pretty form
+ * is a variant */
+ rc = ldap_rdn2bv_x( rdn, out,
+ LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY, ctx );
+
+ ldap_rdnfree_x( rdn, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<<< dnPretty: <%s>\n", out->bv_val ? out->bv_val : "" );
+
+ return LDAP_SUCCESS;
+}
+
+
+int
+dnPrettyNormalDN(
+ Syntax *syntax,
+ struct berval *val,
+ LDAPDN *dn,
+ int flags,
+ void *ctx )
+{
+ assert( val != NULL );
+ assert( dn != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, ">>> dn%sDN: <%s>\n",
+ flags == SLAP_LDAPDN_PRETTY ? "Pretty" : "Normal",
+ val->bv_val ? val->bv_val : "" );
+
+ if ( val->bv_len == 0 ) {
+ return LDAP_SUCCESS;
+
+ } else if ( val->bv_len > SLAP_LDAPDN_MAXLEN ) {
+ return LDAP_INVALID_SYNTAX;
+
+ } else {
+ int rc;
+
+ /* FIXME: should be liberal in what we accept */
+ rc = ldap_bv2dn_x( val, dn, LDAP_DN_FORMAT_LDAP, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( val->bv_val ) == val->bv_len );
+
+ /*
+ * Schema-aware rewrite
+ */
+ if ( LDAPDN_rewrite( *dn, flags, ctx ) != LDAP_SUCCESS ) {
+ ldap_dnfree_x( *dn, ctx );
+ *dn = NULL;
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<<< dn%sDN\n",
+ flags == SLAP_LDAPDN_PRETTY ? "Pretty" : "Normal" );
+
+ return LDAP_SUCCESS;
+}
+
+/*
+ * Combination of both dnPretty and dnNormalize
+ */
+int
+dnPrettyNormal(
+ Syntax *syntax,
+ struct berval *val,
+ struct berval *pretty,
+ struct berval *normal,
+ void *ctx)
+{
+ assert( val != NULL );
+ assert( pretty != NULL );
+ assert( normal != NULL );
+ Debug( LDAP_DEBUG_TRACE, ">>> dnPrettyNormal: <%s>\n", val->bv_val ? val->bv_val : "" );
+
+ if ( val->bv_len == 0 ) {
+ ber_dupbv_x( pretty, val, ctx );
+ ber_dupbv_x( normal, val, ctx );
+
+ } else if ( val->bv_len > SLAP_LDAPDN_MAXLEN ) {
+ /* too big */
+ return LDAP_INVALID_SYNTAX;
+
+ } else {
+ LDAPDN dn = NULL;
+ int rc;
+
+ pretty->bv_val = NULL;
+ normal->bv_val = NULL;
+ pretty->bv_len = 0;
+ normal->bv_len = 0;
+
+ /* FIXME: should be liberal in what we accept */
+ rc = ldap_bv2dn_x( val, &dn, LDAP_DN_FORMAT_LDAP, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ assert( strlen( val->bv_val ) == val->bv_len );
+
+ /*
+ * Schema-aware rewrite
+ */
+ if ( LDAPDN_rewrite( dn, SLAP_LDAPDN_PRETTY, ctx ) != LDAP_SUCCESS ) {
+ ldap_dnfree_x( dn, ctx );
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ rc = ldap_dn2bv_x( dn, pretty,
+ LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY, ctx );
+
+ if ( rc != LDAP_SUCCESS ) {
+ ldap_dnfree_x( dn, ctx );
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ if ( LDAPDN_rewrite( dn, 0, ctx ) != LDAP_SUCCESS ) {
+ ldap_dnfree_x( dn, ctx );
+ ber_memfree_x( pretty->bv_val, ctx );
+ pretty->bv_val = NULL;
+ pretty->bv_len = 0;
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ rc = ldap_dn2bv_x( dn, normal,
+ LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY, ctx );
+
+ ldap_dnfree_x( dn, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ ber_memfree_x( pretty->bv_val, ctx );
+ pretty->bv_val = NULL;
+ pretty->bv_len = 0;
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<<< dnPrettyNormal: <%s>, <%s>\n",
+ pretty->bv_val ? pretty->bv_val : "",
+ normal->bv_val ? normal->bv_val : "" );
+
+ return LDAP_SUCCESS;
+}
+
+/*
+ * dnMatch routine
+ */
+int
+dnMatch(
+ int *matchp,
+ slap_mask_t flags,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *value,
+ void *assertedValue )
+{
+ int match;
+ struct berval *asserted = (struct berval *) assertedValue;
+
+ assert( matchp != NULL );
+ assert( value != NULL );
+ assert( assertedValue != NULL );
+ assert( !BER_BVISNULL( value ) );
+ assert( !BER_BVISNULL( asserted ) );
+
+ match = value->bv_len - asserted->bv_len;
+
+ if ( match == 0 ) {
+ match = memcmp( value->bv_val, asserted->bv_val,
+ value->bv_len );
+ }
+
+ Debug( LDAP_DEBUG_ARGS, "dnMatch %d\n\t\"%s\"\n\t\"%s\"\n",
+ match, value->bv_val, asserted->bv_val );
+
+ *matchp = match;
+ return LDAP_SUCCESS;
+}
+
+/*
+ * dnRelativeMatch routine
+ */
+int
+dnRelativeMatch(
+ int *matchp,
+ slap_mask_t flags,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *value,
+ void *assertedValue )
+{
+ int match;
+ struct berval *asserted = (struct berval *) assertedValue;
+
+ assert( matchp != NULL );
+ assert( value != NULL );
+ assert( assertedValue != NULL );
+ assert( !BER_BVISNULL( value ) );
+ assert( !BER_BVISNULL( asserted ) );
+
+ if( mr == slap_schema.si_mr_dnSubtreeMatch ) {
+ if( asserted->bv_len > value->bv_len ) {
+ match = -1;
+ } else if ( asserted->bv_len == value->bv_len ) {
+ match = memcmp( value->bv_val, asserted->bv_val,
+ value->bv_len );
+ } else {
+ if ( BER_BVISEMPTY( asserted ) ) {
+ match = 0;
+ } else if ( DN_SEPARATOR(
+ value->bv_val[value->bv_len - asserted->bv_len - 1] ))
+ {
+ match = memcmp(
+ &value->bv_val[value->bv_len - asserted->bv_len],
+ asserted->bv_val,
+ asserted->bv_len );
+ } else {
+ match = 1;
+ }
+ }
+
+ *matchp = match;
+ return LDAP_SUCCESS;
+ }
+
+ if( mr == slap_schema.si_mr_dnSuperiorMatch ) {
+ asserted = value;
+ value = (struct berval *) assertedValue;
+ mr = slap_schema.si_mr_dnSubordinateMatch;
+ }
+
+ if( mr == slap_schema.si_mr_dnSubordinateMatch ) {
+ if( asserted->bv_len >= value->bv_len ) {
+ match = -1;
+ } else {
+ if ( BER_BVISEMPTY( asserted ) ) {
+ match = 0;
+ } else if ( DN_SEPARATOR(
+ value->bv_val[value->bv_len - asserted->bv_len - 1] ))
+ {
+ match = memcmp(
+ &value->bv_val[value->bv_len - asserted->bv_len],
+ asserted->bv_val,
+ asserted->bv_len );
+ } else {
+ match = 1;
+ }
+ }
+
+ *matchp = match;
+ return LDAP_SUCCESS;
+ }
+
+ if( mr == slap_schema.si_mr_dnOneLevelMatch ) {
+ if( asserted->bv_len >= value->bv_len ) {
+ match = -1;
+ } else {
+ if( DN_SEPARATOR(
+ value->bv_val[value->bv_len - asserted->bv_len - 1] ))
+ {
+ match = memcmp(
+ &value->bv_val[value->bv_len - asserted->bv_len],
+ asserted->bv_val,
+ asserted->bv_len );
+
+ if( !match ) {
+ struct berval rdn;
+ rdn.bv_val = value->bv_val;
+ rdn.bv_len = value->bv_len - asserted->bv_len - 1;
+ match = dnIsOneLevelRDN( &rdn ) ? 0 : 1;
+ }
+ } else {
+ match = 1;
+ }
+ }
+
+ *matchp = match;
+ return LDAP_SUCCESS;
+ }
+
+ /* should not be reachable */
+ assert( 0 );
+ return LDAP_OTHER;
+}
+
+int
+rdnMatch(
+ int *matchp,
+ slap_mask_t flags,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *value,
+ void *assertedValue )
+{
+ int match;
+ struct berval *asserted = (struct berval *) assertedValue;
+
+ assert( matchp != NULL );
+ assert( value != NULL );
+ assert( assertedValue != NULL );
+
+ match = value->bv_len - asserted->bv_len;
+
+ if ( match == 0 ) {
+ match = memcmp( value->bv_val, asserted->bv_val,
+ value->bv_len );
+ }
+
+ Debug( LDAP_DEBUG_ARGS, "rdnMatch %d\n\t\"%s\"\n\t\"%s\"\n",
+ match, value->bv_val, asserted->bv_val );
+
+ *matchp = match;
+ return LDAP_SUCCESS;
+}
+
+
+/*
+ * dnParent - dn's parent, in-place
+ * note: the incoming dn is assumed to be normalized/prettyfied,
+ * so that escaped rdn/ava separators are in '\'+hexpair form
+ *
+ * note: "dn" and "pdn" can point to the same berval;
+ * beware that, in this case, the pointer to the original buffer
+ * will get lost.
+ */
+void
+dnParent(
+ struct berval *dn,
+ struct berval *pdn )
+{
+ char *p;
+
+ p = ber_bvchr( dn, ',' );
+
+ /* one-level dn */
+ if ( p == NULL ) {
+ pdn->bv_val = dn->bv_val + dn->bv_len;
+ pdn->bv_len = 0;
+ return;
+ }
+
+ assert( DN_SEPARATOR( p[ 0 ] ) );
+ p++;
+
+ assert( ATTR_LEADCHAR( p[ 0 ] ) );
+ pdn->bv_len = dn->bv_len - (p - dn->bv_val);
+ pdn->bv_val = p;
+
+ return;
+}
+
+/*
+ * dnRdn - dn's rdn, in-place
+ * note: the incoming dn is assumed to be normalized/prettyfied,
+ * so that escaped rdn/ava separators are in '\'+hexpair form
+ */
+void
+dnRdn(
+ struct berval *dn,
+ struct berval *rdn )
+{
+ char *p;
+
+ *rdn = *dn;
+ p = ber_bvchr( dn, ',' );
+
+ /* one-level dn */
+ if ( p == NULL ) {
+ return;
+ }
+
+ assert( DN_SEPARATOR( p[ 0 ] ) );
+ assert( ATTR_LEADCHAR( p[ 1 ] ) );
+ rdn->bv_len = p - dn->bv_val;
+
+ return;
+}
+
+int
+dnExtractRdn(
+ struct berval *dn,
+ struct berval *rdn,
+ void *ctx )
+{
+ LDAPRDN tmpRDN;
+ const char *p;
+ int rc;
+
+ assert( dn != NULL );
+ assert( rdn != NULL );
+
+ if( dn->bv_len == 0 ) {
+ return LDAP_OTHER;
+ }
+
+ rc = ldap_bv2rdn_x( dn, &tmpRDN, (char **)&p, LDAP_DN_FORMAT_LDAP, ctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ rc = ldap_rdn2bv_x( tmpRDN, rdn, LDAP_DN_FORMAT_LDAPV3 | LDAP_DN_PRETTY,
+ ctx );
+
+ ldap_rdnfree_x( tmpRDN, ctx );
+ return rc;
+}
+
+/*
+ * We can assume the input is a prettied or normalized DN
+ */
+ber_len_t
+dn_rdnlen(
+ Backend *be,
+ struct berval *dn_in )
+{
+ const char *p;
+
+ assert( dn_in != NULL );
+
+ if ( dn_in == NULL ) {
+ return 0;
+ }
+
+ if ( !dn_in->bv_len ) {
+ return 0;
+ }
+
+ if ( be != NULL && be_issuffix( be, dn_in ) ) {
+ return 0;
+ }
+
+ p = ber_bvchr( dn_in, ',' );
+
+ return p ? (ber_len_t) (p - dn_in->bv_val) : dn_in->bv_len;
+}
+
+
+/* rdnValidate:
+ *
+ * LDAP_SUCCESS if rdn is a legal rdn;
+ * LDAP_INVALID_SYNTAX otherwise (including a sequence of rdns)
+ */
+int
+rdn_validate( struct berval *rdn )
+{
+#if 1
+ /* Major cheat!
+ * input is a pretty or normalized DN
+ * hence, we can just search for ','
+ */
+ if( rdn == NULL || rdn->bv_len == 0 ||
+ rdn->bv_len > SLAP_LDAPDN_MAXLEN )
+ {
+ return LDAP_INVALID_SYNTAX;
+ }
+ return ber_bvchr( rdn, ',' ) == NULL
+ ? LDAP_SUCCESS : LDAP_INVALID_SYNTAX;
+
+#else
+ LDAPRDN *RDN, **DN[ 2 ] = { &RDN, NULL };
+ const char *p;
+ int rc;
+
+ /*
+ * must be non-empty
+ */
+ if ( rdn == NULL || rdn == '\0' ) {
+ return 0;
+ }
+
+ /*
+ * must be parsable
+ */
+ rc = ldap_bv2rdn( rdn, &RDN, (char **)&p, LDAP_DN_FORMAT_LDAP );
+ if ( rc != LDAP_SUCCESS ) {
+ return 0;
+ }
+
+ /*
+ * Must be one-level
+ */
+ if ( p[ 0 ] != '\0' ) {
+ return 0;
+ }
+
+ /*
+ * Schema-aware validate
+ */
+ if ( rc == LDAP_SUCCESS ) {
+ rc = LDAPDN_validate( DN );
+ }
+ ldap_rdnfree( RDN );
+
+ /*
+ * Must validate (there's a repeated parsing ...)
+ */
+ return ( rc == LDAP_SUCCESS );
+#endif
+}
+
+
+/* build_new_dn:
+ *
+ * Used to create the new dn of entries being renamed.
+ *
+ * new_dn = parent (p_dn) + separator + rdn (newrdn) + null.
+ */
+
+void
+build_new_dn( struct berval * new_dn,
+ struct berval * parent_dn,
+ struct berval * newrdn,
+ void *memctx )
+{
+ char *ptr;
+
+ if ( parent_dn == NULL || parent_dn->bv_len == 0 ) {
+ ber_dupbv_x( new_dn, newrdn, memctx );
+ return;
+ }
+
+ new_dn->bv_len = parent_dn->bv_len + newrdn->bv_len + 1;
+ new_dn->bv_val = (char *) slap_sl_malloc( new_dn->bv_len + 1, memctx );
+
+ ptr = lutil_strncopy( new_dn->bv_val, newrdn->bv_val, newrdn->bv_len );
+ *ptr++ = ',';
+ strcpy( ptr, parent_dn->bv_val );
+}
+
+
+/*
+ * dnIsSuffix - tells whether suffix is a suffix of dn.
+ * Both dn and suffix must be normalized.
+ */
+int
+dnIsSuffix(
+ const struct berval *dn,
+ const struct berval *suffix )
+{
+ int d;
+
+ assert( dn != NULL );
+ assert( suffix != NULL );
+
+ d = dn->bv_len - suffix->bv_len;
+
+ /* empty suffix matches any dn */
+ if ( suffix->bv_len == 0 ) {
+ return 1;
+ }
+
+ /* suffix longer than dn */
+ if ( d < 0 ) {
+ return 0;
+ }
+
+ /* no rdn separator or escaped rdn separator */
+ if ( d > 1 && !DN_SEPARATOR( dn->bv_val[ d - 1 ] ) ) {
+ return 0;
+ }
+
+ /* no possible match or malformed dn */
+ if ( d == 1 ) {
+ return 0;
+ }
+
+ /* compare */
+ return( strncmp( dn->bv_val + d, suffix->bv_val, suffix->bv_len ) == 0 );
+}
+
+/*
+ * In place; assumes:
+ * - ndn is normalized
+ * - nbase is normalized
+ * - dnIsSuffix( ndn, nbase ) == TRUE
+ * - LDAP_SCOPE_DEFAULT == LDAP_SCOPE_SUBTREE
+ */
+int
+dnIsWithinScope( struct berval *ndn, struct berval *nbase, int scope )
+{
+ assert( ndn != NULL );
+ assert( nbase != NULL );
+ assert( !BER_BVISNULL( ndn ) );
+ assert( !BER_BVISNULL( nbase ) );
+
+ switch ( scope ) {
+ case LDAP_SCOPE_DEFAULT:
+ case LDAP_SCOPE_SUBTREE:
+ break;
+
+ case LDAP_SCOPE_BASE:
+ if ( ndn->bv_len != nbase->bv_len ) {
+ return 0;
+ }
+ break;
+
+ case LDAP_SCOPE_ONELEVEL: {
+ struct berval pndn;
+ dnParent( ndn, &pndn );
+ if ( pndn.bv_len != nbase->bv_len ) {
+ return 0;
+ }
+ } break;
+
+ case LDAP_SCOPE_SUBORDINATE:
+ if ( ndn->bv_len == nbase->bv_len ) {
+ return 0;
+ }
+ break;
+
+ /* unknown scope */
+ default:
+ return -1;
+ }
+
+ return 1;
+}
+
+/*
+ * In place; assumes:
+ * - ndn is normalized
+ * - nbase is normalized
+ * - LDAP_SCOPE_DEFAULT == LDAP_SCOPE_SUBTREE
+ */
+int
+dnIsSuffixScope( struct berval *ndn, struct berval *nbase, int scope )
+{
+ if ( !dnIsSuffix( ndn, nbase ) ) {
+ return 0;
+ }
+
+ return dnIsWithinScope( ndn, nbase, scope );
+}
+
+int
+dnIsOneLevelRDN( struct berval *rdn )
+{
+ ber_len_t len = rdn->bv_len;
+ for ( ; len--; ) {
+ if ( DN_SEPARATOR( rdn->bv_val[ len ] ) ) {
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+#ifdef HAVE_TLS
+static SLAP_CERT_MAP_FN *DNX509PeerNormalizeCertMap = NULL;
+#endif
+
+int register_certificate_map_function(SLAP_CERT_MAP_FN *fn)
+{
+#ifdef HAVE_TLS
+ if ( DNX509PeerNormalizeCertMap == NULL ) {
+ DNX509PeerNormalizeCertMap = fn;
+ return 0;
+ }
+#endif
+
+ return -1;
+}
+
+/*
+ * Convert an X.509 DN into a normalized LDAP DN
+ */
+int
+dnX509normalize( void *x509_name, struct berval *out )
+{
+ /* Invoke the LDAP library's converter with our schema-rewriter */
+ int rc = ldap_X509dn2bv( x509_name, out, LDAPDN_rewrite, 0 );
+
+ Debug( LDAP_DEBUG_TRACE,
+ "dnX509Normalize: <%s> (%d)\n",
+ BER_BVISNULL( out ) ? "(null)" : out->bv_val, rc );
+
+ return rc;
+}
+
+#ifdef HAVE_TLS
+/*
+ * Get the TLS session's peer's DN into a normalized LDAP DN
+ */
+int
+dnX509peerNormalize( void *ssl, struct berval *dn )
+{
+ int rc = LDAP_INVALID_CREDENTIALS;
+
+ if ( DNX509PeerNormalizeCertMap != NULL )
+ rc = (*DNX509PeerNormalizeCertMap)( ssl, dn );
+
+ if ( rc != LDAP_SUCCESS ) {
+ rc = ldap_pvt_tls_get_peer_dn( ssl, dn,
+ (LDAPDN_rewrite_dummy *)LDAPDN_rewrite, 0 );
+ }
+
+ return rc;
+}
+#endif