diff options
Diffstat (limited to 'servers/slapd/back-bdb/attr.c')
| -rw-r--r-- | servers/slapd/back-bdb/attr.c | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/servers/slapd/back-bdb/attr.c b/servers/slapd/back-bdb/attr.c new file mode 100644 index 0000000..9bdd18b --- /dev/null +++ b/servers/slapd/back-bdb/attr.c @@ -0,0 +1,441 @@ +/* attr.c - backend routines for dealing with attributes */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2000-2018 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>. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/socket.h> +#include <ac/string.h> + +#include "slap.h" +#include "back-bdb.h" +#include "config.h" +#include "lutil.h" + +/* Find the ad, return -1 if not found, + * set point for insertion if ins is non-NULL + */ +int +bdb_attr_slot( struct bdb_info *bdb, AttributeDescription *ad, int *ins ) +{ + unsigned base = 0, cursor = 0; + unsigned n = bdb->bi_nattrs; + int val = 0; + + while ( 0 < n ) { + unsigned pivot = n >> 1; + cursor = base + pivot; + + val = SLAP_PTRCMP( ad, bdb->bi_attrs[cursor]->ai_desc ); + if ( val < 0 ) { + n = pivot; + } else if ( val > 0 ) { + base = cursor + 1; + n -= pivot + 1; + } else { + return cursor; + } + } + if ( ins ) { + if ( val > 0 ) + ++cursor; + *ins = cursor; + } + return -1; +} + +static int +ainfo_insert( struct bdb_info *bdb, AttrInfo *a ) +{ + int x; + int i = bdb_attr_slot( bdb, a->ai_desc, &x ); + + /* Is it a dup? */ + if ( i >= 0 ) + return -1; + + bdb->bi_attrs = ch_realloc( bdb->bi_attrs, ( bdb->bi_nattrs+1 ) * + sizeof( AttrInfo * )); + if ( x < bdb->bi_nattrs ) + AC_MEMCPY( &bdb->bi_attrs[x+1], &bdb->bi_attrs[x], + ( bdb->bi_nattrs - x ) * sizeof( AttrInfo *)); + bdb->bi_attrs[x] = a; + bdb->bi_nattrs++; + return 0; +} + +AttrInfo * +bdb_attr_mask( + struct bdb_info *bdb, + AttributeDescription *desc ) +{ + int i = bdb_attr_slot( bdb, desc, NULL ); + return i < 0 ? NULL : bdb->bi_attrs[i]; +} + +int +bdb_attr_index_config( + struct bdb_info *bdb, + const char *fname, + int lineno, + int argc, + char **argv, + struct config_reply_s *c_reply) +{ + int rc = 0; + int i; + slap_mask_t mask; + char **attrs; + char **indexes = NULL; + + attrs = ldap_str2charray( argv[0], "," ); + + if( attrs == NULL ) { + fprintf( stderr, "%s: line %d: " + "no attributes specified: %s\n", + fname, lineno, argv[0] ); + return LDAP_PARAM_ERROR; + } + + if ( argc > 1 ) { + indexes = ldap_str2charray( argv[1], "," ); + + if( indexes == NULL ) { + fprintf( stderr, "%s: line %d: " + "no indexes specified: %s\n", + fname, lineno, argv[1] ); + rc = LDAP_PARAM_ERROR; + goto done; + } + } + + if( indexes == NULL ) { + mask = bdb->bi_defaultmask; + + } else { + mask = 0; + + for ( i = 0; indexes[i] != NULL; i++ ) { + slap_mask_t index; + rc = slap_str2index( indexes[i], &index ); + + if( rc != LDAP_SUCCESS ) { + if ( c_reply ) + { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "index type \"%s\" undefined", indexes[i] ); + + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + rc = LDAP_PARAM_ERROR; + goto done; + } + + mask |= index; + } + } + + if( !mask ) { + if ( c_reply ) + { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "no indexes selected" ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + rc = LDAP_PARAM_ERROR; + goto done; + } + + for ( i = 0; attrs[i] != NULL; i++ ) { + AttrInfo *a; + AttributeDescription *ad; + const char *text; +#ifdef LDAP_COMP_MATCH + ComponentReference* cr = NULL; + AttrInfo *a_cr = NULL; +#endif + + if( strcasecmp( attrs[i], "default" ) == 0 ) { + bdb->bi_defaultmask |= mask; + continue; + } + +#ifdef LDAP_COMP_MATCH + if ( is_component_reference( attrs[i] ) ) { + rc = extract_component_reference( attrs[i], &cr ); + if ( rc != LDAP_SUCCESS ) { + if ( c_reply ) + { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "index component reference\"%s\" undefined", + attrs[i] ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + goto done; + } + cr->cr_indexmask = mask; + /* + * After extracting a component reference + * only the name of a attribute will be remaining + */ + } else { + cr = NULL; + } +#endif + ad = NULL; + rc = slap_str2ad( attrs[i], &ad, &text ); + + if( rc != LDAP_SUCCESS ) { + if ( c_reply ) + { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "index attribute \"%s\" undefined", + attrs[i] ); + + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + goto done; + } + + if( ad == slap_schema.si_ad_entryDN || slap_ad_is_binary( ad ) ) { + if (c_reply) { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "index of attribute \"%s\" disallowed", attrs[i] ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + rc = LDAP_UNWILLING_TO_PERFORM; + goto done; + } + + if( IS_SLAP_INDEX( mask, SLAP_INDEX_APPROX ) && !( + ad->ad_type->sat_approx + && ad->ad_type->sat_approx->smr_indexer + && ad->ad_type->sat_approx->smr_filter ) ) + { + if (c_reply) { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "approx index of attribute \"%s\" disallowed", attrs[i] ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + rc = LDAP_INAPPROPRIATE_MATCHING; + goto done; + } + + if( IS_SLAP_INDEX( mask, SLAP_INDEX_EQUALITY ) && !( + ad->ad_type->sat_equality + && ad->ad_type->sat_equality->smr_indexer + && ad->ad_type->sat_equality->smr_filter ) ) + { + if (c_reply) { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "equality index of attribute \"%s\" disallowed", attrs[i] ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + rc = LDAP_INAPPROPRIATE_MATCHING; + goto done; + } + + if( IS_SLAP_INDEX( mask, SLAP_INDEX_SUBSTR ) && !( + ad->ad_type->sat_substr + && ad->ad_type->sat_substr->smr_indexer + && ad->ad_type->sat_substr->smr_filter ) ) + { + if (c_reply) { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "substr index of attribute \"%s\" disallowed", attrs[i] ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + rc = LDAP_INAPPROPRIATE_MATCHING; + goto done; + } + + Debug( LDAP_DEBUG_CONFIG, "index %s 0x%04lx\n", + ad->ad_cname.bv_val, mask, 0 ); + + a = (AttrInfo *) ch_malloc( sizeof(AttrInfo) ); + +#ifdef LDAP_COMP_MATCH + a->ai_cr = NULL; +#endif + a->ai_desc = ad; + + if ( bdb->bi_flags & BDB_IS_OPEN ) { + a->ai_indexmask = 0; + a->ai_newmask = mask; + } else { + a->ai_indexmask = mask; + a->ai_newmask = 0; + } + +#ifdef LDAP_COMP_MATCH + if ( cr ) { + a_cr = bdb_attr_mask( bdb, ad ); + if ( a_cr ) { + /* + * AttrInfo is already in AVL + * just add the extracted component reference + * in the AttrInfo + */ + rc = insert_component_reference( cr, &a_cr->ai_cr ); + if ( rc != LDAP_SUCCESS) { + fprintf( stderr, " error during inserting component reference in %s ", attrs[i]); + rc = LDAP_PARAM_ERROR; + goto done; + } + continue; + } else { + rc = insert_component_reference( cr, &a->ai_cr ); + if ( rc != LDAP_SUCCESS) { + fprintf( stderr, " error during inserting component reference in %s ", attrs[i]); + rc = LDAP_PARAM_ERROR; + goto done; + } + } + } +#endif + rc = ainfo_insert( bdb, a ); + if( rc ) { + if ( bdb->bi_flags & BDB_IS_OPEN ) { + AttrInfo *b = bdb_attr_mask( bdb, ad ); + /* If there is already an index defined for this attribute + * it must be replaced. Otherwise we end up with multiple + * olcIndex values for the same attribute */ + if ( b->ai_indexmask & BDB_INDEX_DELETING ) { + /* If we were editing this attr, reset it */ + b->ai_indexmask &= ~BDB_INDEX_DELETING; + /* If this is leftover from a previous add, commit it */ + if ( b->ai_newmask ) + b->ai_indexmask = b->ai_newmask; + b->ai_newmask = a->ai_newmask; + ch_free( a ); + rc = 0; + continue; + } + } + if (c_reply) { + snprintf(c_reply->msg, sizeof(c_reply->msg), + "duplicate index definition for attr \"%s\"", + attrs[i] ); + fprintf( stderr, "%s: line %d: %s\n", + fname, lineno, c_reply->msg ); + } + + rc = LDAP_PARAM_ERROR; + goto done; + } + } + +done: + ldap_charray_free( attrs ); + if ( indexes != NULL ) ldap_charray_free( indexes ); + + return rc; +} + +static int +bdb_attr_index_unparser( void *v1, void *v2 ) +{ + AttrInfo *ai = v1; + BerVarray *bva = v2; + struct berval bv; + char *ptr; + + slap_index2bvlen( ai->ai_indexmask, &bv ); + if ( bv.bv_len ) { + bv.bv_len += ai->ai_desc->ad_cname.bv_len + 1; + ptr = ch_malloc( bv.bv_len+1 ); + bv.bv_val = lutil_strcopy( ptr, ai->ai_desc->ad_cname.bv_val ); + *bv.bv_val++ = ' '; + slap_index2bv( ai->ai_indexmask, &bv ); + bv.bv_val = ptr; + ber_bvarray_add( bva, &bv ); + } + return 0; +} + +static AttributeDescription addef = { NULL, NULL, BER_BVC("default") }; +static AttrInfo aidef = { &addef }; + +void +bdb_attr_index_unparse( struct bdb_info *bdb, BerVarray *bva ) +{ + int i; + + if ( bdb->bi_defaultmask ) { + aidef.ai_indexmask = bdb->bi_defaultmask; + bdb_attr_index_unparser( &aidef, bva ); + } + for ( i=0; i<bdb->bi_nattrs; i++ ) + bdb_attr_index_unparser( bdb->bi_attrs[i], bva ); +} + +void +bdb_attr_info_free( AttrInfo *ai ) +{ +#ifdef LDAP_COMP_MATCH + free( ai->ai_cr ); +#endif + free( ai ); +} + +void +bdb_attr_index_destroy( struct bdb_info *bdb ) +{ + int i; + + for ( i=0; i<bdb->bi_nattrs; i++ ) + bdb_attr_info_free( bdb->bi_attrs[i] ); + + free( bdb->bi_attrs ); +} + +void bdb_attr_index_free( struct bdb_info *bdb, AttributeDescription *ad ) +{ + int i; + + i = bdb_attr_slot( bdb, ad, NULL ); + if ( i >= 0 ) { + bdb_attr_info_free( bdb->bi_attrs[i] ); + bdb->bi_nattrs--; + for (; i<bdb->bi_nattrs; i++) + bdb->bi_attrs[i] = bdb->bi_attrs[i+1]; + } +} + +void bdb_attr_flush( struct bdb_info *bdb ) +{ + int i; + + for ( i=0; i<bdb->bi_nattrs; i++ ) { + if ( bdb->bi_attrs[i]->ai_indexmask & BDB_INDEX_DELETING ) { + int j; + bdb_attr_info_free( bdb->bi_attrs[i] ); + bdb->bi_nattrs--; + for (j=i; j<bdb->bi_nattrs; j++) + bdb->bi_attrs[j] = bdb->bi_attrs[j+1]; + i--; + } + } +} |