]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/compare.c
ITS#5401
[openldap] / servers / slapd / compare.c
index fdfccea5193fe8ad345aee050ae58846b595ac8a..7c8771bd6c2b4b005a4c008e24bb4b41e8e6c0ba 100644 (file)
@@ -1,7 +1,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2003 The OpenLDAP Foundation.
+ * Copyright 1998-2008 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #include <ac/socket.h>
 #include <ac/string.h>
 
-#include "ldap_pvt.h"
 #include "slap.h"
-#ifdef LDAP_SLAPI
-#include "slapi.h"
-#endif
 
 static int compare_entry(
        Operation *op,
@@ -43,23 +39,20 @@ static int compare_entry(
 int
 do_compare(
     Operation  *op,
-    SlapReply  *rs
-)
+    SlapReply  *rs )
 {
-       Entry *entry = NULL;
-       struct berval dn = { 0, NULL };
-       struct berval desc = { 0, NULL };
-       struct berval value = { 0, NULL };
-       AttributeAssertion ava = { NULL, { 0, NULL } };
-       int manageDSAit;
+       struct berval dn = BER_BVNULL;
+       struct berval desc = BER_BVNULL;
+       struct berval value = BER_BVNULL;
+#ifdef LDAP_COMP_MATCH
+       AttributeAssertion ava = { NULL, BER_BVNULL, NULL };
+#else
+       AttributeAssertion ava = { NULL, BER_BVNULL };
+#endif
 
        ava.aa_desc = NULL;
 
-#ifdef NEW_LOGGING
-       LDAP_LOG( OPERATION, ENTRY, "do_compare: conn %d\n", op->o_connid, 0, 0 );
-#else
        Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
-#endif
        /*
         * Parse the compare request.  It looks like this:
         *
@@ -73,66 +66,46 @@ do_compare(
         */
 
        if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ERR, 
-                       "do_compare: conn %d  ber_scanf failed\n", op->o_connid, 0, 0 );
-#else
                Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-#endif
                send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
                return SLAPD_DISCONNECT;
        }
 
        if ( ber_scanf( op->o_ber, "{mm}", &desc, &value ) == LBER_ERROR ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ERR, 
-                       "do_compare: conn %d  get ava failed\n", op->o_connid, 0, 0 );
-#else
                Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
-#endif
                send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
                return SLAPD_DISCONNECT;
        }
 
        if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ERR, 
-                       "do_compare: conn %d  ber_scanf failed\n", op->o_connid, 0, 0 );
-#else
                Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-#endif
                send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
                return SLAPD_DISCONNECT;
        }
 
        if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, INFO, 
-                       "do_compare: conn %d  get_ctrls failed\n", op->o_connid, 0, 0 );
-#else
                Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
-#endif
                goto cleanup;
        } 
 
-       rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
+       rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
+               op->o_tmpmemctx );
        if( rs->sr_err != LDAP_SUCCESS ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, INFO, 
-                       "do_compare: conn %d  invalid dn (%s)\n",
-                       op->o_connid, dn.bv_val, 0 );
-#else
                Debug( LDAP_DEBUG_ANY,
                        "do_compare: invalid dn (%s)\n", dn.bv_val, 0, 0 );
-#endif
                send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
                goto cleanup;
        }
 
        rs->sr_err = slap_bv2ad( &desc, &ava.aa_desc, &rs->sr_text );
        if( rs->sr_err != LDAP_SUCCESS ) {
-               send_ldap_result( op, rs );
-               goto cleanup;
+               rs->sr_err = slap_bv2undef_ad( &desc, &ava.aa_desc,
+                               &rs->sr_text,
+                               SLAP_AD_PROXIED|SLAP_AD_NOINSERT );
+               if( rs->sr_err != LDAP_SUCCESS ) {
+                       send_ldap_result( op, rs );
+                       goto cleanup;
+               }
        }
 
        rs->sr_err = asserted_value_validate_normalize( ava.aa_desc,
@@ -144,20 +117,39 @@ do_compare(
                goto cleanup;
        }
 
+       op->orc_ava = &ava;
+
+       op->o_bd = frontendDB;
+       rs->sr_err = frontendDB->be_compare( op, rs );
+
+cleanup:;
+       op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
+       op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
+       if ( !BER_BVISNULL( &ava.aa_value ) ) {
+               op->o_tmpfree( ava.aa_value.bv_val, op->o_tmpmemctx );
+       }
+
+       return rs->sr_err;
+}
+
+int
+fe_op_compare( Operation *op, SlapReply *rs )
+{
+       Entry *entry = NULL;
+       int manageDSAit;
+       AttributeAssertion ava = *op->orc_ava;
+       BackendDB       *bd = op->o_bd;
+
        if( strcasecmp( op->o_req_ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ARGS, 
-                       "do_compare: dn (%s) attr(%s) value (%s)\n",
-                       op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
-#else
-               Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
-                       op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
-#endif
+               Debug( LDAP_DEBUG_ARGS,
+                       "do_compare: dn (%s) attr (%s) value (%s)\n",
+                       op->o_req_dn.bv_val,
+                       ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
 
                Statslog( LDAP_DEBUG_STATS,
-                       "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
-                       op->o_connid, op->o_opid, op->o_req_dn.bv_val,
-                       ava.aa_desc->ad_cname.bv_val, 0 );
+                       "%s CMP dn=\"%s\" attr=\"%s\"\n",
+                       op->o_log_prefix, op->o_req_dn.bv_val,
+                       ava.aa_desc->ad_cname.bv_val, 0, 0 );
 
                if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
                        send_ldap_result( op, rs );
@@ -170,21 +162,15 @@ do_compare(
                        goto cleanup;
                }
 
-       } else if ( bvmatch( &op->o_req_ndn, &global_schemandn ) ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, ARGS, 
-                       "do_compare: dn (%s) attr(%s) value (%s)\n",
-                       op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val,
-                       ava.aa_value.bv_val );
-#else
+       } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
                Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
-                       op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
-#endif
+                       op->o_req_dn.bv_val,
+                       ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
 
                Statslog( LDAP_DEBUG_STATS,
-                       "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
-                       op->o_connid, op->o_opid, op->o_req_dn.bv_val,
-                       ava.aa_desc->ad_cname.bv_val, 0 );
+                       "%s CMP dn=\"%s\" attr=\"%s\"\n",
+                       op->o_log_prefix, op->o_req_dn.bv_val,
+                       ava.aa_desc->ad_cname.bv_val, 0, 0 );
 
                if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
                        send_ldap_result( op, rs );
@@ -206,8 +192,10 @@ do_compare(
 
                send_ldap_result( op, rs );
 
-               if( rs->sr_err == LDAP_COMPARE_TRUE || rs->sr_err == LDAP_COMPARE_FALSE ) {
-                       rs->sr_err = 0;
+               if( rs->sr_err == LDAP_COMPARE_TRUE ||
+                       rs->sr_err == LDAP_COMPARE_FALSE )
+               {
+                       rs->sr_err = LDAP_SUCCESS;
                }
 
                goto cleanup;
@@ -220,12 +208,14 @@ do_compare(
         * appropriate one, or send a referral to our "referral server"
         * if we don't hold it.
         */
-       if ( (op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 )) == NULL ) {
+       op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
+       if ( op->o_bd == NULL ) {
                rs->sr_ref = referral_rewrite( default_referral,
                        NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 
                rs->sr_err = LDAP_REFERRAL;
                if (!rs->sr_ref) rs->sr_ref = default_referral;
+               op->o_bd = bd;
                send_ldap_result( op, rs );
 
                if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
@@ -244,75 +234,142 @@ do_compare(
                goto cleanup;
        }
 
-#ifdef NEW_LOGGING
-       LDAP_LOG( OPERATION, ARGS, 
-               "do_compare: dn (%s) attr(%s) value (%s)\n",
-               op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
-#else
        Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
-           op->o_req_dn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
-#endif
+           op->o_req_dn.bv_val,
+               ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val );
 
-       Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n",
-           op->o_connid, op->o_opid, op->o_req_dn.bv_val,
-               ava.aa_desc->ad_cname.bv_val, 0 );
-
-#if defined( LDAP_SLAPI )
-#define        pb      op->o_pb
-       if ( pb ) {
-               slapi_int_pblock_set_operation( pb, op );
-               slapi_pblock_set( pb, SLAPI_COMPARE_TARGET, (void *)dn.bv_val );
-               slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
-               slapi_pblock_set( pb, SLAPI_COMPARE_TYPE, (void *)desc.bv_val );
-               slapi_pblock_set( pb, SLAPI_COMPARE_VALUE, (void *)&value );
-
-               rs->sr_err = doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_COMPARE_FN, pb );
-               if ( rs->sr_err < 0 ) {
-                       /*
-                        * A preoperation plugin failure will abort the
-                        * entire operation.
-                        */
-#ifdef NEW_LOGGING
-                       LDAP_LOG( OPERATION, INFO, "do_compare: compare preoperation plugin "
-                                       "failed\n", 0, 0, 0);
-#else
-                       Debug(LDAP_DEBUG_TRACE, "do_compare: compare preoperation plugin "
-                                       "failed.\n", 0, 0, 0);
-#endif
-                       if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE, (void *)&rs->sr_err ) != 0 )  ||
-                                rs->sr_err == LDAP_SUCCESS ) {
-                               rs->sr_err = LDAP_OTHER;
+       Statslog( LDAP_DEBUG_STATS, "%s CMP dn=\"%s\" attr=\"%s\"\n",
+               op->o_log_prefix, op->o_req_dn.bv_val,
+               ava.aa_desc->ad_cname.bv_val, 0, 0 );
+
+       op->orc_ava = &ava;
+       if ( ava.aa_desc == slap_schema.si_ad_entryDN ) {
+               send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
+                       "entryDN compare not supported" );
+
+       } else if ( ava.aa_desc == slap_schema.si_ad_subschemaSubentry ) {
+               send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
+                       "subschemaSubentry compare not supported" );
+
+#ifndef SLAP_COMPARE_IN_FRONTEND
+       } else if ( ava.aa_desc == slap_schema.si_ad_hasSubordinates
+               && op->o_bd->be_has_subordinates )
+       {
+               int     rc, hasSubordinates = LDAP_SUCCESS;
+
+               rc = be_entry_get_rw( op, &op->o_req_ndn, NULL, NULL, 0, &entry );
+               if ( rc == 0 && entry ) {
+                       if ( ! access_allowed( op, entry,
+                               ava.aa_desc, &ava.aa_value, ACL_COMPARE, NULL ) )
+                       {       
+                               rc = rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+                               
+                       } else {
+                               rc = rs->sr_err = op->o_bd->be_has_subordinates( op,
+                                               entry, &hasSubordinates );
+                               be_entry_release_r( op, entry );
                        }
-                       goto cleanup;
                }
-       }
-#endif /* defined( LDAP_SLAPI ) */
 
-       if ( op->o_bd->be_compare ) {
-               op->orc_ava = &ava;
-               op->o_bd->be_compare( op, rs );
+               if ( rc == 0 ) {
+                       int     asserted;
+
+                       asserted = bvmatch( &ava.aa_value, &slap_true_bv )
+                               ? LDAP_COMPARE_TRUE : LDAP_COMPARE_FALSE;
+                       if ( hasSubordinates == asserted ) {
+                               rs->sr_err = LDAP_COMPARE_TRUE;
+
+                       } else {
+                               rs->sr_err = LDAP_COMPARE_FALSE;
+                       }
+
+               } else {
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+                       /* return error only if "disclose"
+                        * is granted on the object */
+                       if ( backend_access( op, NULL, &op->o_req_ndn,
+                                       slap_schema.si_ad_entry,
+                                       NULL, ACL_DISCLOSE, NULL ) == LDAP_INSUFFICIENT_ACCESS )
+                       {
+                               rs->sr_err = LDAP_NO_SUCH_OBJECT;
+                       }
+#endif /* SLAP_ACL_HONOR_DISCLOSE */
+               }
+
+               send_ldap_result( op, rs );
+
+               if ( rc == 0 ) {
+                       rs->sr_err = LDAP_SUCCESS;
+               }
+
+       } else if ( op->o_bd->be_compare ) {
+               rs->sr_err = op->o_bd->be_compare( op, rs );
+
+#endif /* ! SLAP_COMPARE_IN_FRONTEND */
        } else {
-               send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
-                       "operation not supported within namingContext" );
+               rs->sr_err = SLAP_CB_CONTINUE;
        }
 
-#if defined( LDAP_SLAPI )
-       if ( pb && doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_COMPARE_FN, pb ) < 0 ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( OPERATION, INFO, "do_compare: compare postoperation plugins "
-                               "failed\n", 0, 0, 0 );
-#else
-               Debug(LDAP_DEBUG_TRACE, "do_compare: compare postoperation plugins "
-                               "failed.\n", 0, 0, 0);
-#endif
-       }
-#endif /* defined( LDAP_SLAPI ) */
+       if ( rs->sr_err == SLAP_CB_CONTINUE ) {
+               /* do our best to compare that AVA
+                * 
+                * NOTE: this code is used only
+                * if SLAP_COMPARE_IN_FRONTEND 
+                * is #define'd (it's not by default)
+                * or if op->o_bd->be_compare is NULL.
+                * 
+                * FIXME: one potential issue is that
+                * if SLAP_COMPARE_IN_FRONTEND overlays
+                * are not executed for compare. */
+               BerVarray       vals = NULL;
+               int             rc = LDAP_OTHER;
+
+               rs->sr_err = backend_attribute( op, NULL, &op->o_req_ndn,
+                               ava.aa_desc, &vals, ACL_COMPARE );
+               switch ( rs->sr_err ) {
+               default:
+#ifdef SLAP_ACL_HONOR_DISCLOSE
+                       /* return error only if "disclose"
+                        * is granted on the object */
+                       if ( backend_access( op, NULL, &op->o_req_ndn,
+                                       slap_schema.si_ad_entry,
+                                       NULL, ACL_DISCLOSE, NULL )
+                                       == LDAP_INSUFFICIENT_ACCESS )
+                       {
+                               rs->sr_err = LDAP_NO_SUCH_OBJECT;
+                       }
+#endif /* SLAP_ACL_HONOR_DISCLOSE */
+                       break;
 
-cleanup:
-       op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
-       op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
-       if ( ava.aa_value.bv_val ) op->o_tmpfree( ava.aa_value.bv_val, op->o_tmpmemctx );
+               case LDAP_SUCCESS:
+                       if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
+                               SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+                                       SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+                               vals, &ava.aa_value, op->o_tmpmemctx ) == 0 )
+                       {
+                               rs->sr_err = LDAP_COMPARE_TRUE;
+                               break;
+
+                       } else {
+                               rs->sr_err = LDAP_COMPARE_FALSE;
+                       }
+                       rc = LDAP_SUCCESS;
+                       break;
+               }
+
+               send_ldap_result( op, rs );
 
+               if ( rc == 0 ) {
+                       rs->sr_err = LDAP_SUCCESS;
+               }
+               
+               if ( vals ) {
+                       ber_bvarray_free_x( vals, op->o_tmpmemctx );
+               }
+       }
+
+cleanup:;
+       op->o_bd = bd;
        return rs->sr_err;
 }
 
@@ -321,31 +378,53 @@ static int compare_entry(
        Entry *e,
        AttributeAssertion *ava )
 {
-       int rc = LDAP_NO_SUCH_ATTRIBUTE;
+       int rc = LDAP_COMPARE_FALSE;
        Attribute *a;
 
        if ( ! access_allowed( op, e,
                ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
        {       
-               return LDAP_INSUFFICIENT_ACCESS;
+               rc = LDAP_INSUFFICIENT_ACCESS;
+               goto done;
+       }
+
+       a = attrs_find( e->e_attrs, ava->aa_desc );
+       if( a == NULL ) {
+               rc = LDAP_NO_SUCH_ATTRIBUTE;
+               goto done;
        }
 
        for(a = attrs_find( e->e_attrs, ava->aa_desc );
                a != NULL;
                a = attrs_find( a->a_next, ava->aa_desc ))
        {
-               rc = LDAP_COMPARE_FALSE;
+               if (( ava->aa_desc != a->a_desc ) && ! access_allowed( op,
+                       e, a->a_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
+               {       
+                       rc = LDAP_INSUFFICIENT_ACCESS;
+                       break;
+               }
 
                if ( value_find_ex( ava->aa_desc,
                        SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
                                SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
-                       a->a_nvals,
-                       &ava->aa_value, op->o_tmpmemctx ) == 0 )
+                       a->a_nvals, &ava->aa_value, op->o_tmpmemctx ) == 0 )
                {
                        rc = LDAP_COMPARE_TRUE;
                        break;
                }
        }
 
+done:
+#ifdef LDAP_ACL_HONOR_DISCLOSE
+       if( rc != LDAP_COMPARE_TRUE && rc != LDAP_COMPARE_FALSE ) {
+               if ( ! access_allowed( op, e,
+                       slap_schema.si_ad_entry, NULL, ACL_DISCLOSE, NULL ) )
+               {
+                       rc = LDAP_NO_SUCH_OBJECT;
+               }
+       }
+#endif
+
        return rc;
 }