openldap/servers/slapd/schema_check.c
2000-05-15 23:36:37 +00:00

336 lines
7.1 KiB
C

/* schema_check.c - routines to enforce schema definitions */
/* $OpenLDAP$ */
/*
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/ctype.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "ldap_pvt.h"
#ifdef SLAPD_SCHEMA_NOT_COMPAT
static int oc_check_allowed(
AttributeType *type,
struct berval **oclist );
#else
static int oc_check_allowed(char *type, struct berval **oclist);
#endif
static char * oc_check_required(Entry *e, struct berval *ocname);
/*
* entry_schema_check - check that entry e conforms to the schema required
* by its object class(es).
*
* returns 0 if so, non-zero otherwise.
*/
int
entry_schema_check(
Entry *e, Attribute *oldattrs, char** text )
{
Attribute *a, *aoc;
ObjectClass *oc;
int i;
int ret;
#ifdef SLAPD_SCHEMA_NOT_COMPAT
AttributeDescription *ad_objectClass = slap_schema.si_ad_objectClass;
#else
static const char *ac_objectClass = "objectclass";
#endif
if( !global_schemacheck ) return LDAP_SUCCESS;
/* find the object class attribute - could error out here */
if ( (aoc = attr_find( e->e_attrs, ad_objectClass )) == NULL ) {
Debug( LDAP_DEBUG_ANY, "No object class for entry (%s)\n",
e->e_dn, 0, 0 );
*text = "no objectclass attribute";
return oldattrs != NULL
? LDAP_OBJECT_CLASS_VIOLATION
: LDAP_NO_OBJECT_CLASS_MODS;
}
ret = LDAP_SUCCESS;
/* check that the entry has required attrs for each oc */
for ( i = 0; aoc->a_vals[i] != NULL; i++ ) {
if ( (oc = oc_find( aoc->a_vals[i]->bv_val )) == NULL ) {
Debug( LDAP_DEBUG_ANY,
"Objectclass \"%s\" not defined\n",
aoc->a_vals[i]->bv_val, 0, 0 );
} else {
char *s = oc_check_required( e, aoc->a_vals[i] );
if (s != NULL) {
Debug( LDAP_DEBUG_ANY,
"Entry (%s), oc \"%s\" requires attr \"%s\"\n",
e->e_dn, aoc->a_vals[i]->bv_val, s );
*text = "missing required attribute";
ret = LDAP_OBJECT_CLASS_VIOLATION;
break;
}
}
}
if ( ret != LDAP_SUCCESS ) {
return ret;
}
/* check that each attr in the entry is allowed by some oc */
for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
#ifdef SLAPD_SCHEMA_NOT_COMPAT
ret = oc_check_allowed( a->a_desc->ad_type, aoc->a_vals );
#else
ret = oc_check_allowed( a->a_type, aoc->a_vals );
#endif
if ( ret != 0 ) {
#ifdef SLAPD_SCHEMA_NOT_COMPAT
char *type = a->a_desc->ad_cname->bv_val;
#else
char *type = a->a_type;
#endif
Debug( LDAP_DEBUG_ANY,
"Entry (%s), attr \"%s\" not allowed\n",
e->e_dn, type, 0 );
*text = "attribute not allowed";
break;
}
}
return( ret );
}
static char *
oc_check_required( Entry *e, struct berval *ocname )
{
ObjectClass *oc;
AttributeType *at;
int i;
Attribute *a;
Debug( LDAP_DEBUG_TRACE,
"oc_check_required entry (%s), objectclass \"%s\"\n",
e->e_dn, ocname, 0 );
/* find global oc defn. it we don't know about it assume it's ok */
if ( (oc = oc_find( ocname->bv_val )) == NULL ) {
return NULL;
}
/* check for empty oc_required */
if(oc->soc_required == NULL) {
return NULL;
}
/* for each required attribute */
for ( i = 0; oc->soc_required[i] != NULL; i++ ) {
at = oc->soc_required[i];
/* see if it's in the entry */
for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
#ifdef SLAPD_SCHEMA_NOT_COMPAT
if( a->a_desc->ad_type == at ) {
break;
}
#else
char **pp;
if ( at->sat_oid &&
strcmp( a->a_type, at->sat_oid ) == 0 ) {
break;
}
pp = at->sat_names;
if ( pp == NULL ) {
/* Empty name list => not found */
a = NULL;
break;
}
while ( *pp ) {
if ( strcasecmp( a->a_type, *pp ) == 0 ) {
break;
}
pp++;
}
if ( *pp ) {
break;
}
#endif
}
/* not there => schema violation */
if ( a == NULL ) {
#ifdef SLAPD_SCHEMA_NOT_COMPAT
return at->sat_cname;
#else
if ( at->sat_names && at->sat_names[0] ) {
return at->sat_names[0];
} else {
return at->sat_oid;
}
#endif
}
}
return( NULL );
}
static int
oc_check_allowed(
#ifdef SLAPD_SCHEMA_NOT_COMPAT
AttributeType *at,
#else
char *type,
#endif
struct berval **ocl )
{
ObjectClass *oc;
int i, j;
#ifdef SLAPD_SCHEMA_NOT_COMPAT
Debug( LDAP_DEBUG_TRACE,
"oc_check_allowed type \"%s\"\n",
at->sat_cname, 0, 0 );
/* always allow objectclass attribute */
if ( strcasecmp( at->sat_cname, "objectclass" ) == 0 ) {
return LDAP_SUCCESS;
}
#else
AttributeType *at;
char **pp;
char *p;
char *t;
Debug( LDAP_DEBUG_TRACE,
"oc_check_allowed type \"%s\"\n", type, 0, 0 );
/* always allow objectclass attribute */
if ( strcasecmp( type, "objectclass" ) == 0 ) {
return LDAP_SUCCESS;
}
#endif
#ifdef SLAPD_SCHEMA_NOT_COMPAT
if( is_at_operational(at) ) {
return LDAP_SUCCESS;
}
#else
/*
* The "type" we have received is actually an AttributeDescription.
* Let's find out the corresponding type.
*/
p = strchr( type, ';' );
if ( p ) {
t = ch_malloc( p-type+1 );
strncpy( t, type, p-type );
t[p-type] = '\0';
Debug( LDAP_DEBUG_TRACE,
"oc_check_allowed type \"%s\" from \"%s\"\n",
t, type, 0 );
} else
{
t = type;
}
/*
* All operational attributions are allowed by schema rules.
*/
if ( oc_check_op_attr( t ) ) {
return LDAP_SUCCESS;
}
#endif
/* check that the type appears as req or opt in at least one oc */
for ( i = 0; ocl[i] != NULL; i++ ) {
/* if we know about the oc */
if ( (oc = oc_find( ocl[i]->bv_val )) != NULL ) {
/* does it require the type? */
for ( j = 0; oc->soc_required != NULL &&
oc->soc_required[j] != NULL; j++ )
{
#ifdef SLAPD_SCHEMA_NOT_COMPAT
if( at == oc->soc_required[j] ) {
return LDAP_SUCCESS;
}
#else
at = oc->soc_required[j];
if ( at->sat_oid &&
strcmp(at->sat_oid, t ) == 0 ) {
if ( t != type )
ldap_memfree( t );
return LDAP_SUCCESS;
}
pp = at->sat_names;
if ( pp == NULL )
continue;
while ( *pp ) {
if ( strcasecmp( *pp, t ) == 0 ) {
if ( t != type )
ldap_memfree( t );
return LDAP_SUCCESS;
}
pp++;
}
#endif
}
/* does it allow the type? */
for ( j = 0; oc->soc_allowed != NULL &&
oc->soc_allowed[j] != NULL; j++ )
{
#ifdef SLAPD_SCHEMA_NOT_COMPAT
if( at == oc->soc_allowed[j] ) {
return LDAP_SUCCESS;
}
#else
at = oc->soc_allowed[j];
if ( at->sat_oid &&
strcmp( at->sat_oid, t ) == 0 ) {
if ( t != type )
ldap_memfree( t );
return LDAP_SUCCESS;
}
pp = at->sat_names;
if ( pp == NULL )
continue;
while ( *pp ) {
if ( strcasecmp( *pp, t ) == 0 ||
strcmp( *pp, "*" ) == 0 ) {
if ( t != type )
ldap_memfree( t );
return LDAP_SUCCESS;
}
pp++;
}
#endif
}
/* maybe the next oc allows it */
#ifdef OC_UNDEFINED_IMPLES_EXTENSIBLE
/* we don't know about the oc. assume it allows it */
} else {
if ( t != type )
ldap_memfree( t );
return LDAP_SUCCESS;
#endif
}
}
#ifndef SLAPD_SCHEMA_NOT_COMPAT
if ( t != type )
ldap_memfree( t );
#endif
/* not allowed by any oc */
return LDAP_OBJECT_CLASS_VIOLATION;
}