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-rw-r--r--servers/slapd/back-meta/map.c877
1 files changed, 877 insertions, 0 deletions
diff --git a/servers/slapd/back-meta/map.c b/servers/slapd/back-meta/map.c
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index 0000000..b743895
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+++ b/servers/slapd/back-meta/map.c
@@ -0,0 +1,877 @@
+/* map.c - ldap backend mapping routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2018 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
+ */
+/* This is an altered version */
+/*
+ * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
+ *
+ * Permission is granted to anyone to use this software for any purpose
+ * on any computer system, and to alter it and redistribute it, subject
+ * to the following restrictions:
+ *
+ * 1. The author is not responsible for the consequences of use of this
+ * software, no matter how awful, even if they arise from flaws in it.
+ *
+ * 2. The origin of this software must not be misrepresented, either by
+ * explicit claim or by omission. Since few users ever read sources,
+ * credits should appear in the documentation.
+ *
+ * 3. Altered versions must be plainly marked as such, and must not be
+ * misrepresented as being the original software. Since few users
+ * ever read sources, credits should appear in the documentation.
+ *
+ * 4. This notice may not be removed or altered.
+ *
+ *
+ *
+ * Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
+ *
+ * This software is being modified by Pierangelo Masarati.
+ * The previously reported conditions apply to the modified code as well.
+ * Changes in the original code are highlighted where required.
+ * Credits for the original code go to the author, Howard Chu.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "lutil.h"
+#include "../back-ldap/back-ldap.h"
+#include "back-meta.h"
+
+int
+mapping_cmp ( const void *c1, const void *c2 )
+{
+ struct ldapmapping *map1 = (struct ldapmapping *)c1;
+ struct ldapmapping *map2 = (struct ldapmapping *)c2;
+ int rc = map1->src.bv_len - map2->src.bv_len;
+ if (rc) return rc;
+ return ( strcasecmp( map1->src.bv_val, map2->src.bv_val ) );
+}
+
+int
+mapping_dup ( void *c1, void *c2 )
+{
+ struct ldapmapping *map1 = (struct ldapmapping *)c1;
+ struct ldapmapping *map2 = (struct ldapmapping *)c2;
+
+ return ( ( strcasecmp( map1->src.bv_val, map2->src.bv_val ) == 0 ) ? -1 : 0 );
+}
+
+void
+ldap_back_map_init ( struct ldapmap *lm, struct ldapmapping **m )
+{
+ struct ldapmapping *mapping;
+
+ assert( m != NULL );
+
+ *m = NULL;
+
+ mapping = (struct ldapmapping *)ch_calloc( 2,
+ sizeof( struct ldapmapping ) );
+ if ( mapping == NULL ) {
+ return;
+ }
+
+ ber_str2bv( "objectclass", STRLENOF("objectclass"), 1, &mapping[0].src);
+ ber_dupbv( &mapping[0].dst, &mapping[0].src );
+ mapping[1].src = mapping[0].src;
+ mapping[1].dst = mapping[0].dst;
+
+ avl_insert( &lm->map, (caddr_t)&mapping[0],
+ mapping_cmp, mapping_dup );
+ avl_insert( &lm->remap, (caddr_t)&mapping[1],
+ mapping_cmp, mapping_dup );
+ *m = mapping;
+}
+
+int
+ldap_back_mapping ( struct ldapmap *map, struct berval *s, struct ldapmapping **m,
+ int remap )
+{
+ Avlnode *tree;
+ struct ldapmapping fmapping;
+
+ assert( m != NULL );
+
+ /* let special attrnames slip through (ITS#5760) */
+ if ( bvmatch( s, slap_bv_no_attrs )
+ || bvmatch( s, slap_bv_all_user_attrs )
+ || bvmatch( s, slap_bv_all_operational_attrs ) )
+ {
+ *m = NULL;
+ return 0;
+ }
+
+ if ( remap == BACKLDAP_REMAP ) {
+ tree = map->remap;
+
+ } else {
+ tree = map->map;
+ }
+
+ fmapping.src = *s;
+ *m = (struct ldapmapping *)avl_find( tree, (caddr_t)&fmapping, mapping_cmp );
+ if ( *m == NULL ) {
+ return map->drop_missing;
+ }
+
+ return 0;
+}
+
+void
+ldap_back_map ( struct ldapmap *map, struct berval *s, struct berval *bv,
+ int remap )
+{
+ struct ldapmapping *mapping;
+ int drop_missing;
+
+ /* map->map may be NULL when mapping is configured,
+ * but map->remap can't */
+ if ( map->remap == NULL ) {
+ *bv = *s;
+ return;
+ }
+
+ BER_BVZERO( bv );
+ drop_missing = ldap_back_mapping( map, s, &mapping, remap );
+ if ( mapping != NULL ) {
+ if ( !BER_BVISNULL( &mapping->dst ) ) {
+ *bv = mapping->dst;
+ }
+ return;
+ }
+
+ if ( !drop_missing ) {
+ *bv = *s;
+ }
+}
+
+int
+ldap_back_map_attrs(
+ Operation *op,
+ struct ldapmap *at_map,
+ AttributeName *an,
+ int remap,
+ char ***mapped_attrs )
+{
+ int i, x, j;
+ char **na;
+ struct berval mapped;
+
+ if ( an == NULL && op->o_bd->be_extra_anlist == NULL ) {
+ *mapped_attrs = NULL;
+ return LDAP_SUCCESS;
+ }
+
+ i = 0;
+ if ( an != NULL ) {
+ for ( ; !BER_BVISNULL( &an[i].an_name ); i++ )
+ /* */ ;
+ }
+
+ x = 0;
+ if ( op->o_bd->be_extra_anlist != NULL ) {
+ for ( ; !BER_BVISNULL( &op->o_bd->be_extra_anlist[x].an_name ); x++ )
+ /* */ ;
+ }
+
+ assert( i > 0 || x > 0 );
+
+ na = (char **)ber_memcalloc_x( i + x + 1, sizeof(char *), op->o_tmpmemctx );
+ if ( na == NULL ) {
+ *mapped_attrs = NULL;
+ return LDAP_NO_MEMORY;
+ }
+
+ j = 0;
+ if ( i > 0 ) {
+ for ( i = 0; !BER_BVISNULL( &an[i].an_name ); i++ ) {
+ ldap_back_map( at_map, &an[i].an_name, &mapped, remap );
+ if ( !BER_BVISNULL( &mapped ) && !BER_BVISEMPTY( &mapped ) ) {
+ na[j++] = mapped.bv_val;
+ }
+ }
+ }
+
+ if ( x > 0 ) {
+ for ( x = 0; !BER_BVISNULL( &op->o_bd->be_extra_anlist[x].an_name ); x++ ) {
+ if ( op->o_bd->be_extra_anlist[x].an_desc &&
+ ad_inlist( op->o_bd->be_extra_anlist[x].an_desc, an ) )
+ {
+ continue;
+ }
+
+ ldap_back_map( at_map, &op->o_bd->be_extra_anlist[x].an_name, &mapped, remap );
+ if ( !BER_BVISNULL( &mapped ) && !BER_BVISEMPTY( &mapped ) ) {
+ na[j++] = mapped.bv_val;
+ }
+ }
+ }
+
+ if ( j == 0 && ( i > 0 || x > 0 ) ) {
+ na[j++] = LDAP_NO_ATTRS;
+ }
+ na[j] = NULL;
+
+ *mapped_attrs = na;
+
+ return LDAP_SUCCESS;
+}
+
+static int
+map_attr_value(
+ dncookie *dc,
+ AttributeDescription *ad,
+ struct berval *mapped_attr,
+ struct berval *value,
+ struct berval *mapped_value,
+ int remap,
+ void *memctx )
+{
+ struct berval vtmp;
+ int freeval = 0;
+
+ ldap_back_map( &dc->target->mt_rwmap.rwm_at, &ad->ad_cname, mapped_attr, remap );
+ if ( BER_BVISNULL( mapped_attr ) || BER_BVISEMPTY( mapped_attr ) ) {
+#if 0
+ /*
+ * FIXME: are we sure we need to search oc_map if at_map fails?
+ */
+ ldap_back_map( &dc->target->mt_rwmap.rwm_oc, &ad->ad_cname, mapped_attr, remap );
+ if ( BER_BVISNULL( mapped_attr ) || BER_BVISEMPTY( mapped_attr ) ) {
+ *mapped_attr = ad->ad_cname;
+ }
+#endif
+ if ( dc->target->mt_rwmap.rwm_at.drop_missing ) {
+ return -1;
+ }
+
+ *mapped_attr = ad->ad_cname;
+ }
+
+ if ( value == NULL ) {
+ return 0;
+ }
+
+ if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
+ {
+ dncookie fdc = *dc;
+
+#ifdef ENABLE_REWRITE
+ fdc.ctx = "searchFilterAttrDN";
+#endif
+
+ switch ( ldap_back_dn_massage( &fdc, value, &vtmp ) ) {
+ case LDAP_SUCCESS:
+ if ( vtmp.bv_val != value->bv_val ) {
+ freeval = 1;
+ }
+ break;
+
+ case LDAP_UNWILLING_TO_PERFORM:
+ return -1;
+
+ case LDAP_OTHER:
+ return -1;
+ }
+
+ } else if ( ad->ad_type->sat_equality &&
+ ad->ad_type->sat_equality->smr_usage & SLAP_MR_MUTATION_NORMALIZER )
+ {
+ if ( ad->ad_type->sat_equality->smr_normalize(
+ (SLAP_MR_DENORMALIZE|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX),
+ NULL, NULL, value, &vtmp, memctx ) )
+ {
+ return -1;
+ }
+ freeval = 2;
+
+ } else if ( ad == slap_schema.si_ad_objectClass || ad == slap_schema.si_ad_structuralObjectClass ) {
+ ldap_back_map( &dc->target->mt_rwmap.rwm_oc, value, &vtmp, remap );
+ if ( BER_BVISNULL( &vtmp ) || BER_BVISEMPTY( &vtmp ) ) {
+ vtmp = *value;
+ }
+
+ } else {
+ vtmp = *value;
+ }
+
+ filter_escape_value_x( &vtmp, mapped_value, memctx );
+
+ switch ( freeval ) {
+ case 1:
+ ber_memfree( vtmp.bv_val );
+ break;
+ case 2:
+ ber_memfree_x( vtmp.bv_val, memctx );
+ break;
+ }
+
+ return 0;
+}
+
+static int
+ldap_back_int_filter_map_rewrite(
+ dncookie *dc,
+ Filter *f,
+ struct berval *fstr,
+ int remap,
+ void *memctx )
+{
+ int i;
+ Filter *p;
+ struct berval atmp,
+ vtmp,
+ *tmp;
+ static struct berval
+ /* better than nothing... */
+ ber_bvfalse = BER_BVC( "(!(objectClass=*))" ),
+ ber_bvtf_false = BER_BVC( "(|)" ),
+ /* better than nothing... */
+ ber_bvtrue = BER_BVC( "(objectClass=*)" ),
+ ber_bvtf_true = BER_BVC( "(&)" ),
+#if 0
+ /* no longer needed; preserved for completeness */
+ ber_bvundefined = BER_BVC( "(?=undefined)" ),
+#endif
+ ber_bverror = BER_BVC( "(?=error)" ),
+ ber_bvunknown = BER_BVC( "(?=unknown)" ),
+ ber_bvnone = BER_BVC( "(?=none)" );
+ ber_len_t len;
+
+ assert( fstr != NULL );
+ BER_BVZERO( fstr );
+
+ if ( f == NULL ) {
+ ber_dupbv_x( fstr, &ber_bvnone, memctx );
+ return LDAP_OTHER;
+ }
+
+ switch ( ( f->f_choice & SLAPD_FILTER_MASK ) ) {
+ case LDAP_FILTER_EQUALITY:
+ if ( map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(=)") - 1 );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 1, memctx );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
+ atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ break;
+
+ case LDAP_FILTER_GE:
+ if ( map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(>=)") - 1 );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 1, memctx );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
+ atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ break;
+
+ case LDAP_FILTER_LE:
+ if ( map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(<=)") - 1 );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 1, memctx );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
+ atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ break;
+
+ case LDAP_FILTER_APPROX:
+ if ( map_attr_value( dc, f->f_av_desc, &atmp,
+ &f->f_av_value, &vtmp, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ fstr->bv_len = atmp.bv_len + vtmp.bv_len
+ + ( sizeof("(~=)") - 1 );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 1, memctx );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
+ atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ break;
+
+ case LDAP_FILTER_SUBSTRINGS:
+ if ( map_attr_value( dc, f->f_sub_desc, &atmp,
+ NULL, NULL, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ /* cannot be a DN ... */
+
+ fstr->bv_len = atmp.bv_len + ( STRLENOF( "(=*)" ) );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 128, memctx ); /* FIXME: why 128 ? */
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
+ atmp.bv_val );
+
+ if ( !BER_BVISNULL( &f->f_sub_initial ) ) {
+ len = fstr->bv_len;
+
+ filter_escape_value_x( &f->f_sub_initial, &vtmp, memctx );
+
+ fstr->bv_len += vtmp.bv_len;
+ fstr->bv_val = ber_memrealloc_x( fstr->bv_val, fstr->bv_len + 1, memctx );
+
+ snprintf( &fstr->bv_val[len - 2], vtmp.bv_len + 3,
+ /* "(attr=" */ "%s*)",
+ vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ }
+
+ if ( f->f_sub_any != NULL ) {
+ for ( i = 0; !BER_BVISNULL( &f->f_sub_any[i] ); i++ ) {
+ len = fstr->bv_len;
+ filter_escape_value_x( &f->f_sub_any[i], &vtmp, memctx );
+
+ fstr->bv_len += vtmp.bv_len + 1;
+ fstr->bv_val = ber_memrealloc_x( fstr->bv_val, fstr->bv_len + 1, memctx );
+
+ snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
+ /* "(attr=[init]*[any*]" */ "%s*)",
+ vtmp.bv_len ? vtmp.bv_val : "" );
+ ber_memfree_x( vtmp.bv_val, memctx );
+ }
+ }
+
+ if ( !BER_BVISNULL( &f->f_sub_final ) ) {
+ len = fstr->bv_len;
+
+ filter_escape_value_x( &f->f_sub_final, &vtmp, memctx );
+
+ fstr->bv_len += vtmp.bv_len;
+ fstr->bv_val = ber_memrealloc_x( fstr->bv_val, fstr->bv_len + 1, memctx );
+
+ snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
+ /* "(attr=[init*][any*]" */ "%s)",
+ vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ }
+
+ break;
+
+ case LDAP_FILTER_PRESENT:
+ if ( map_attr_value( dc, f->f_desc, &atmp,
+ NULL, NULL, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ fstr->bv_len = atmp.bv_len + ( STRLENOF( "(=*)" ) );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 1, memctx );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
+ atmp.bv_val );
+ break;
+
+ case LDAP_FILTER_AND:
+ case LDAP_FILTER_OR:
+ case LDAP_FILTER_NOT:
+ fstr->bv_len = STRLENOF( "(%)" );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 128, memctx ); /* FIXME: why 128? */
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
+ f->f_choice == LDAP_FILTER_AND ? '&' :
+ f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
+
+ for ( p = f->f_list; p != NULL; p = p->f_next ) {
+ int rc;
+
+ len = fstr->bv_len;
+
+ rc = ldap_back_int_filter_map_rewrite( dc, p, &vtmp, remap, memctx );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ fstr->bv_len += vtmp.bv_len;
+ fstr->bv_val = ber_memrealloc_x( fstr->bv_val, fstr->bv_len + 1, memctx );
+
+ snprintf( &fstr->bv_val[len-1], vtmp.bv_len + 2,
+ /*"("*/ "%s)", vtmp.bv_len ? vtmp.bv_val : "" );
+
+ ber_memfree_x( vtmp.bv_val, memctx );
+ }
+
+ break;
+
+ case LDAP_FILTER_EXT:
+ if ( f->f_mr_desc ) {
+ if ( map_attr_value( dc, f->f_mr_desc, &atmp,
+ &f->f_mr_value, &vtmp, remap, memctx ) )
+ {
+ goto computed;
+ }
+
+ } else {
+ BER_BVSTR( &atmp, "" );
+ filter_escape_value_x( &f->f_mr_value, &vtmp, memctx );
+ }
+
+ /* FIXME: cleanup (less ?: operators...) */
+ fstr->bv_len = atmp.bv_len +
+ ( f->f_mr_dnattrs ? STRLENOF( ":dn" ) : 0 ) +
+ ( !BER_BVISEMPTY( &f->f_mr_rule_text ) ? f->f_mr_rule_text.bv_len + 1 : 0 ) +
+ vtmp.bv_len + ( STRLENOF( "(:=)" ) );
+ fstr->bv_val = ber_memalloc_x( fstr->bv_len + 1, memctx );
+
+ snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
+ atmp.bv_val,
+ f->f_mr_dnattrs ? ":dn" : "",
+ !BER_BVISEMPTY( &f->f_mr_rule_text ) ? ":" : "",
+ !BER_BVISEMPTY( &f->f_mr_rule_text ) ? f->f_mr_rule_text.bv_val : "",
+ vtmp.bv_len ? vtmp.bv_val : "" );
+ ber_memfree_x( vtmp.bv_val, memctx );
+ break;
+
+ case SLAPD_FILTER_COMPUTED:
+ switch ( f->f_result ) {
+ /* FIXME: treat UNDEFINED as FALSE */
+ case SLAPD_COMPARE_UNDEFINED:
+computed:;
+ if ( META_BACK_TGT_NOUNDEFFILTER( dc->target ) ) {
+ return LDAP_COMPARE_FALSE;
+ }
+ /* fallthru */
+
+ case LDAP_COMPARE_FALSE:
+ if ( META_BACK_TGT_T_F( dc->target ) ) {
+ tmp = &ber_bvtf_false;
+ break;
+ }
+ tmp = &ber_bvfalse;
+ break;
+
+ case LDAP_COMPARE_TRUE:
+ if ( META_BACK_TGT_T_F( dc->target ) ) {
+ tmp = &ber_bvtf_true;
+ break;
+ }
+
+ tmp = &ber_bvtrue;
+ break;
+
+ default:
+ tmp = &ber_bverror;
+ break;
+ }
+
+ ber_dupbv_x( fstr, tmp, memctx );
+ break;
+
+ default:
+ ber_dupbv_x( fstr, &ber_bvunknown, memctx );
+ break;
+ }
+
+ return 0;
+}
+
+int
+ldap_back_filter_map_rewrite(
+ dncookie *dc,
+ Filter *f,
+ struct berval *fstr,
+ int remap,
+ void *memctx )
+{
+ int rc;
+ dncookie fdc;
+ struct berval ftmp;
+ static char *dmy = "";
+
+ rc = ldap_back_int_filter_map_rewrite( dc, f, fstr, remap, memctx );
+
+#ifdef ENABLE_REWRITE
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ fdc = *dc;
+ ftmp = *fstr;
+
+ fdc.ctx = "searchFilter";
+
+ switch ( rewrite_session( fdc.target->mt_rwmap.rwm_rw, fdc.ctx,
+ ( !BER_BVISEMPTY( &ftmp ) ? ftmp.bv_val : dmy ),
+ fdc.conn, &fstr->bv_val ) )
+ {
+ case REWRITE_REGEXEC_OK:
+ if ( !BER_BVISNULL( fstr ) ) {
+ fstr->bv_len = strlen( fstr->bv_val );
+
+ } else {
+ *fstr = ftmp;
+ }
+ Debug( LDAP_DEBUG_ARGS,
+ "[rw] %s: \"%s\" -> \"%s\"\n",
+ fdc.ctx, BER_BVISNULL( &ftmp ) ? "" : ftmp.bv_val,
+ BER_BVISNULL( fstr ) ? "" : fstr->bv_val );
+ rc = LDAP_SUCCESS;
+ break;
+
+ case REWRITE_REGEXEC_UNWILLING:
+ if ( fdc.rs ) {
+ fdc.rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
+ fdc.rs->sr_text = "Operation not allowed";
+ }
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ break;
+
+ case REWRITE_REGEXEC_ERR:
+ if ( fdc.rs ) {
+ fdc.rs->sr_err = LDAP_OTHER;
+ fdc.rs->sr_text = "Rewrite error";
+ }
+ rc = LDAP_OTHER;
+ break;
+ }
+
+ if ( fstr->bv_val == dmy ) {
+ BER_BVZERO( fstr );
+
+ } else if ( fstr->bv_val != ftmp.bv_val ) {
+ /* NOTE: need to realloc mapped filter on slab
+ * and free the original one, until librewrite
+ * becomes slab-aware
+ */
+ ber_dupbv_x( &ftmp, fstr, memctx );
+ ch_free( fstr->bv_val );
+ *fstr = ftmp;
+ }
+#endif /* ENABLE_REWRITE */
+
+ return rc;
+}
+
+int
+ldap_back_referral_result_rewrite(
+ dncookie *dc,
+ BerVarray a_vals,
+ void *memctx
+)
+{
+ int i, last;
+
+ assert( dc != NULL );
+ assert( a_vals != NULL );
+
+ for ( last = 0; !BER_BVISNULL( &a_vals[ last ] ); last++ )
+ ;
+ last--;
+
+ for ( i = 0; !BER_BVISNULL( &a_vals[ i ] ); i++ ) {
+ struct berval dn,
+ olddn = BER_BVNULL;
+ int rc;
+ LDAPURLDesc *ludp;
+
+ rc = ldap_url_parse( a_vals[ i ].bv_val, &ludp );
+ if ( rc != LDAP_URL_SUCCESS ) {
+ /* leave attr untouched if massage failed */
+ continue;
+ }
+
+ /* FIXME: URLs like "ldap:///dc=suffix" if passed
+ * thru ldap_url_parse() and ldap_url_desc2str()
+ * get rewritten as "ldap:///dc=suffix??base";
+ * we don't want this to occur... */
+ if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
+ ludp->lud_scope = LDAP_SCOPE_DEFAULT;
+ }
+
+ ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
+
+ rc = ldap_back_dn_massage( dc, &olddn, &dn );
+ switch ( rc ) {
+ case LDAP_UNWILLING_TO_PERFORM:
+ /*
+ * FIXME: need to check if it may be considered
+ * legal to trim values when adding/modifying;
+ * it should be when searching (e.g. ACLs).
+ */
+ ber_memfree( a_vals[ i ].bv_val );
+ if ( last > i ) {
+ a_vals[ i ] = a_vals[ last ];
+ }
+ BER_BVZERO( &a_vals[ last ] );
+ last--;
+ i--;
+ break;
+
+ default:
+ /* leave attr untouched if massage failed */
+ if ( !BER_BVISNULL( &dn ) && olddn.bv_val != dn.bv_val )
+ {
+ char *newurl;
+
+ ludp->lud_dn = dn.bv_val;
+ newurl = ldap_url_desc2str( ludp );
+ free( dn.bv_val );
+ if ( newurl == NULL ) {
+ /* FIXME: leave attr untouched
+ * even if ldap_url_desc2str failed...
+ */
+ break;
+ }
+
+ ber_memfree_x( a_vals[ i ].bv_val, memctx );
+ ber_str2bv_x( newurl, 0, 1, &a_vals[ i ], memctx );
+ ber_memfree( newurl );
+ ludp->lud_dn = olddn.bv_val;
+ }
+ break;
+ }
+
+ ldap_free_urldesc( ludp );
+ }
+
+ return 0;
+}
+
+/*
+ * I don't like this much, but we need two different
+ * functions because different heap managers may be
+ * in use in back-ldap/meta to reduce the amount of
+ * calls to malloc routines, and some of the free()
+ * routines may be macros with args
+ */
+int
+ldap_dnattr_rewrite(
+ dncookie *dc,
+ BerVarray a_vals
+)
+{
+ struct berval bv;
+ int i, last;
+
+ assert( a_vals != NULL );
+
+ for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ )
+ ;
+ last--;
+
+ for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
+ switch ( ldap_back_dn_massage( dc, &a_vals[i], &bv ) ) {
+ case LDAP_UNWILLING_TO_PERFORM:
+ /*
+ * FIXME: need to check if it may be considered
+ * legal to trim values when adding/modifying;
+ * it should be when searching (e.g. ACLs).
+ */
+ ch_free( a_vals[i].bv_val );
+ if ( last > i ) {
+ a_vals[i] = a_vals[last];
+ }
+ BER_BVZERO( &a_vals[last] );
+ last--;
+ break;
+
+ default:
+ /* leave attr untouched if massage failed */
+ if ( !BER_BVISNULL( &bv ) && bv.bv_val != a_vals[i].bv_val ) {
+ ch_free( a_vals[i].bv_val );
+ a_vals[i] = bv;
+ }
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int
+ldap_dnattr_result_rewrite(
+ dncookie *dc,
+ BerVarray a_vals
+)
+{
+ struct berval bv;
+ int i, last;
+
+ assert( a_vals != NULL );
+
+ for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ )
+ ;
+ last--;
+
+ for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
+ switch ( ldap_back_dn_massage( dc, &a_vals[i], &bv ) ) {
+ case LDAP_UNWILLING_TO_PERFORM:
+ /*
+ * FIXME: need to check if it may be considered
+ * legal to trim values when adding/modifying;
+ * it should be when searching (e.g. ACLs).
+ */
+ ber_memfree( a_vals[i].bv_val );
+ if ( last > i ) {
+ a_vals[i] = a_vals[last];
+ }
+ BER_BVZERO( &a_vals[last] );
+ last--;
+ break;
+
+ default:
+ /* leave attr untouched if massage failed */
+ if ( !BER_BVISNULL( &bv ) && a_vals[i].bv_val != bv.bv_val ) {
+ ber_memfree( a_vals[i].bv_val );
+ a_vals[i] = bv;
+ }
+ break;
+ }
+ }
+
+ return 0;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 13:36:51 +0000