X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fcompare.c;h=bc62375a470ed0fe23fb6607b86bc3e6ac962517;hb=b508c611a6582fc9f23e0094b26a89b7c075131a;hp=7934821fd4f6e1c4f091df50c388950dce0e44a5;hpb=f5e6d1db410c11b26dfe5ef2e5563f51e136c830;p=openldap diff --git a/servers/slapd/compare.c b/servers/slapd/compare.c index 7934821fd4..bc62375a47 100644 --- a/servers/slapd/compare.c +++ b/servers/slapd/compare.c @@ -1,10 +1,18 @@ /* $OpenLDAP$ */ -/* - * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved. - * COPYING RESTRICTIONS APPLY, see COPYRIGHT file +/* This work is part of OpenLDAP Software . + * + * Copyright 1998-2011 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 + * . */ -/* - * Copyright (c) 1995 Regents of the University of Michigan. +/* Portions Copyright (c) 1995 Regents of the University of Michigan. * All rights reserved. * * Redistribution and use in source and binary forms are permitted @@ -19,41 +27,22 @@ #include #include +#include -#include "ldap_pvt.h" #include "slap.h" -static int compare_entry( - Connection *conn, - Operation *op, - Entry *e, - AttributeAssertion *ava ); - int do_compare( - Connection *conn, - Operation *op -) + Operation *op, + SlapReply *rs ) { - Entry *entry = NULL; - struct berval dn = { 0, NULL }; - struct berval pdn = { 0, NULL }; - struct berval ndn = { 0, NULL }; - struct berval desc = { 0, NULL }; - struct berval value = { 0, NULL }; - AttributeAssertion ava = { 0 }; - Backend *be; - int rc = LDAP_SUCCESS; - const char *text = NULL; - int manageDSAit; - - ava.aa_desc = NULL; - -#ifdef NEW_LOGGING - LDAP_LOG( OPERATION, ENTRY, "do_compare: conn %d\n", conn->c_connid, 0, 0 ); -#else - Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 ); -#endif + struct berval dn = BER_BVNULL; + struct berval desc = BER_BVNULL; + struct berval value = BER_BVNULL; + AttributeAssertion ava = ATTRIBUTEASSERTION_INIT; + + Debug( LDAP_DEBUG_TRACE, "%s do_compare\n", + op->o_log_prefix, 0, 0 ); /* * Parse the compare request. It looks like this: * @@ -67,244 +56,354 @@ 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", conn->c_connid, 0, 0 ); -#else - Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 ); -#endif - send_ldap_disconnect( conn, op, - LDAP_PROTOCOL_ERROR, "decoding error" ); + Debug( LDAP_DEBUG_ANY, "%s do_compare: ber_scanf failed\n", + op->o_log_prefix, 0, 0 ); + 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", conn->c_connid, 0, 0 ); -#else - Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 ); -#endif - send_ldap_disconnect( conn, op, - LDAP_PROTOCOL_ERROR, "decoding error" ); - rc = SLAPD_DISCONNECT; - goto cleanup; + Debug( LDAP_DEBUG_ANY, "%s do_compare: get ava failed\n", + op->o_log_prefix, 0, 0 ); + 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", conn->c_connid, 0, 0 ); -#else - Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 ); -#endif - send_ldap_disconnect( conn, op, - LDAP_PROTOCOL_ERROR, "decoding error" ); - rc = SLAPD_DISCONNECT; - goto cleanup; + Debug( LDAP_DEBUG_ANY, "%s do_compare: ber_scanf failed\n", + op->o_log_prefix, 0, 0 ); + send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" ); + return SLAPD_DISCONNECT; } - if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) { -#ifdef NEW_LOGGING - LDAP_LOG( OPERATION, INFO, - "do_compare: conn %d get_ctrls failed\n", conn->c_connid, 0, 0 ); -#else - Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 ); -#endif + if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_ANY, "%s do_compare: get_ctrls failed\n", + op->o_log_prefix, 0, 0 ); goto cleanup; } - rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn ); - if( rc != LDAP_SUCCESS ) { -#ifdef NEW_LOGGING - LDAP_LOG( OPERATION, INFO, - "do_compare: conn %d invalid dn (%s)\n", - conn->c_connid, dn.bv_val, 0 ); -#else - Debug( LDAP_DEBUG_ANY, - "do_compare: invalid dn (%s)\n", dn.bv_val, 0, 0 ); -#endif - send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL, - "invalid DN", NULL, NULL ); + rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, + op->o_tmpmemctx ); + if( rs->sr_err != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_ANY, "%s do_compare: invalid dn (%s)\n", + op->o_log_prefix, dn.bv_val, 0 ); + send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" ); goto cleanup; } - rc = slap_bv2ad( &desc, &ava.aa_desc, &text ); - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); - goto cleanup; + Statslog( LDAP_DEBUG_STATS, + "%s CMP dn=\"%s\" attr=\"%s\"\n", + op->o_log_prefix, op->o_req_dn.bv_val, + desc.bv_val, 0, 0 ); + + rs->sr_err = slap_bv2ad( &desc, &ava.aa_desc, &rs->sr_text ); + if( rs->sr_err != LDAP_SUCCESS ) { + 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; + } } - rc = value_validate_normalize( ava.aa_desc, SLAP_MR_EQUALITY, - &value, &ava.aa_value, &text ); - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); + rs->sr_err = asserted_value_validate_normalize( ava.aa_desc, + ava.aa_desc->ad_type->sat_equality, + SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX, + &value, &ava.aa_value, &rs->sr_text, op->o_tmpmemctx ); + if( rs->sr_err != LDAP_SUCCESS ) { + send_ldap_result( op, rs ); goto cleanup; } - if( strcasecmp( ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) { -#ifdef NEW_LOGGING - LDAP_LOG( OPERATION, ARGS, - "do_compare: dn (%s) attr(%s) value (%s)\n", - pdn.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", - pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val ); -#endif - - Statslog( LDAP_DEBUG_STATS, - "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n", - op->o_connid, op->o_opid, pdn.bv_val, - ava.aa_desc->ad_cname.bv_val, 0 ); - - rc = backend_check_restrictions( NULL, conn, op, NULL, &text ) ; - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); + op->orc_ava = &ava; + + 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 ); + + 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; + AttributeAssertion *ava = op->orc_ava; + BackendDB *bd = op->o_bd; + + if( strcasecmp( op->o_req_ndn.bv_val, LDAP_ROOT_DSE ) == 0 ) { + if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { + send_ldap_result( op, rs ); goto cleanup; } - rc = root_dse_info( conn, &entry, &text ); - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); + rs->sr_err = root_dse_info( op->o_conn, &entry, &rs->sr_text ); + if( rs->sr_err != LDAP_SUCCESS ) { + send_ldap_result( op, rs ); goto cleanup; } - } else if ( bvmatch( &ndn, &global_schemandn ) ) { -#ifdef NEW_LOGGING - LDAP_LOG( OPERATION, ARGS, - "do_compare: dn (%s) attr(%s) value (%s)\n", - pdn.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", - pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val ); -#endif - - Statslog( LDAP_DEBUG_STATS, - "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n", - op->o_connid, op->o_opid, pdn.bv_val, - ava.aa_desc->ad_cname.bv_val, 0 ); - - rc = backend_check_restrictions( NULL, conn, op, NULL, &text ) ; - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); - rc = 0; + } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) { + if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { + send_ldap_result( op, rs ); + rs->sr_err = 0; goto cleanup; } - rc = schema_info( &entry, &text ); - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); - rc = 0; + rs->sr_err = schema_info( &entry, &rs->sr_text ); + if( rs->sr_err != LDAP_SUCCESS ) { + send_ldap_result( op, rs ); + rs->sr_err = 0; goto cleanup; } } if( entry ) { - rc = compare_entry( conn, op, entry, &ava ); + rs->sr_err = slap_compare_entry( op, entry, ava ); entry_free( entry ); - send_ldap_result( conn, op, rc, NULL, text, NULL, NULL ); + send_ldap_result( op, rs ); - if( rc == LDAP_COMPARE_TRUE || rc == LDAP_COMPARE_FALSE ) { - rc = 0; + if( rs->sr_err == LDAP_COMPARE_TRUE || + rs->sr_err == LDAP_COMPARE_FALSE ) + { + rs->sr_err = LDAP_SUCCESS; } goto cleanup; } - manageDSAit = get_manageDSAit( op ); - /* * We could be serving multiple database backends. Select the * appropriate one, or send a referral to our "referral server" * if we don't hold it. */ - if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) { - BerVarray ref = referral_rewrite( default_referral, - NULL, &pdn, LDAP_SCOPE_DEFAULT ); - - send_ldap_result( conn, op, rc = LDAP_REFERRAL, - NULL, NULL, ref ? ref : default_referral, NULL ); - - ber_bvarray_free( ref ); - rc = 0; + op->o_bd = select_backend( &op->o_req_ndn, 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 ); + rs->sr_err = 0; goto cleanup; } /* check restrictions */ - rc = backend_check_restrictions( be, conn, op, NULL, &text ) ; - if( rc != LDAP_SUCCESS ) { - send_ldap_result( conn, op, rc, - NULL, text, NULL, NULL ); + if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { + send_ldap_result( op, rs ); goto cleanup; } /* check for referrals */ - rc = backend_check_referrals( be, conn, op, &pdn, &ndn ); - if ( rc != LDAP_SUCCESS ) { + if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) { goto cleanup; } -#ifdef NEW_LOGGING - LDAP_LOG( OPERATION, ARGS, - "do_compare: dn (%s) attr(%s) value (%s)\n", - pdn.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", - pdn.bv_val, ava.aa_desc->ad_cname.bv_val, ava.aa_value.bv_val ); -#endif + if ( SLAP_SHADOW(op->o_bd) && get_dontUseCopy(op) ) { + /* don't use shadow copy */ + send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, + "copy not used" ); - Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu CMP dn=\"%s\" attr=\"%s\"\n", - op->o_connid, op->o_opid, pdn.bv_val, - ava.aa_desc->ad_cname.bv_val, 0 ); + } else 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" ); - /* deref suffix alias if appropriate */ - suffix_alias( be, &ndn ); +#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 ); + } + } + + 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 { + /* 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; + } + } + + send_ldap_result( op, rs ); + + if ( rc == 0 ) { + rs->sr_err = LDAP_SUCCESS; + } - if ( be->be_compare ) { - (*be->be_compare)( be, conn, op, &pdn, &ndn, &ava ); + } 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_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM, - NULL, "operation not supported within namingContext", - NULL, NULL ); + rs->sr_err = SLAP_CB_CONTINUE; } -cleanup: - free( pdn.bv_val ); - free( ndn.bv_val ); - if ( ava.aa_value.bv_val ) free( ava.aa_value.bv_val ); + 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: + /* 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; + } + break; - return rc; + 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; } -static int compare_entry( - Connection *conn, +int slap_compare_entry( Operation *op, Entry *e, AttributeAssertion *ava ) { - int rc = LDAP_NO_SUCH_ATTRIBUTE; + int rc = LDAP_COMPARE_FALSE; Attribute *a; - if ( ! access_allowed( NULL, conn, op, e, + if ( ! access_allowed( op, e, ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) ) { - return LDAP_INSUFFICIENT_ACCESS; + rc = LDAP_INSUFFICIENT_ACCESS; + goto done; + } + + if ( get_assert( op ) && + ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE )) + { + rc = LDAP_ASSERTION_FAILED; + goto done; } - for(a = attrs_find( e->e_attrs, ava->aa_desc ); + a = attrs_find( e->e_attrs, ava->aa_desc ); + if( a == NULL ) { + rc = LDAP_NO_SUCH_ATTRIBUTE; + goto done; + } + + for(; 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( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 ) { + if ( attr_valfind( a, + SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH | + SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH, + &ava->aa_value, NULL, op->o_tmpmemctx ) == 0 ) + { rc = LDAP_COMPARE_TRUE; break; } } +done: + 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; + } + } + return rc; }