openldap/servers/slapd/back-bdb2/modify.c

323 lines
7.1 KiB
C
Raw Normal View History

/* modify.c - bdb2 backend modify routine */
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-bdb2.h"
#include "proto-back-bdb2.h"
int
bdb2i_back_modify_internal(
BackendDB *be,
Connection *conn,
Operation *op,
char *dn,
LDAPModList *modlist,
Entry *e
)
{
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
LDAPModList *ml;
int err;
Debug(LDAP_DEBUG_ARGS, "bdb2i_back_modify:\n", 0, 0, 0);
if ( (err = acl_check_modlist( be, conn, op, e, modlist )) != LDAP_SUCCESS ) {
send_ldap_result( conn, op, err,
NULL, NULL, NULL, NULL );
goto error_return;
}
for ( ml = modlist; ml != NULL; ml = ml->ml_next ) {
LDAPMod *mod = &ml->ml_mod;
switch ( mod->mod_op & ~LDAP_MOD_BVALUES ) {
case LDAP_MOD_ADD:
err = bdb2i_add_values( e, mod, op->o_ndn );
break;
case LDAP_MOD_DELETE:
err = bdb2i_delete_values( e, mod, op->o_ndn );
break;
case LDAP_MOD_REPLACE:
err = bdb2i_replace_values( e, mod, op->o_ndn );
break;
case LDAP_MOD_SOFTADD:
/* Avoid problems in index_add_mods()
* We need to add index if necessary.
*/
mod->mod_op = LDAP_MOD_ADD;
if ( (err = bdb2i_add_values( e, mod, op->o_ndn ))
== LDAP_TYPE_OR_VALUE_EXISTS ) {
err = LDAP_SUCCESS;
mod->mod_op = LDAP_MOD_SOFTADD;
}
break;
}
if ( err != LDAP_SUCCESS ) {
/* unlock entry, delete from cache */
send_ldap_result( conn, op, err,
NULL, NULL, NULL, NULL );
goto error_return;
}
}
/* check that the entry still obeys the schema */
if ( global_schemacheck && oc_schema_check( e ) != 0 ) {
Debug( LDAP_DEBUG_ANY, "entry failed schema check\n", 0, 0, 0 );
send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION,
NULL, NULL, NULL, NULL );
goto error_return;
}
/* check for abandon */
ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
if ( op->o_abandon ) {
ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
goto error_return;
}
ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
/* modify indexes */
if ( bdb2i_index_add_mods( be, modlist, e->e_id ) != 0 ) {
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
goto error_return;
}
/* check for abandon */
ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
if ( op->o_abandon ) {
ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
goto error_return;
}
ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
/* change the entry itself */
if ( bdb2i_id2entry_add( be, e ) != 0 ) {
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
goto error_return;
}
send_ldap_result( conn, op, LDAP_SUCCESS,
NULL, NULL, NULL, NULL );
return( 0 );
error_return:;
return( -1 );
}
int
bdb2_back_modify(
BackendDB *be,
Connection *conn,
Operation *op,
char *dn,
LDAPModList *modlist
)
{
DB_LOCK lock;
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
struct timeval time1;
int ret, manageDSAit;
Entry *matched;
1999-05-19 20:21:11 +08:00
Entry *e;
bdb2i_start_timing( be->bd_info, &time1 );
1999-03-05 18:25:55 +08:00
if ( bdb2i_enter_backend_w( &lock ) != 0 ) {
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
return( -1 );
}
/* check, if a new default attribute index will be created,
in which case we have to open the index file BEFORE TP */
switch ( slapMode ) {
case SLAP_SERVER_MODE:
case SLAP_TIMEDSERVER_MODE:
case SLAP_TOOL_MODE:
case SLAP_TOOLID_MODE:
bdb2i_check_default_attr_index_mod( li, modlist );
break;
}
if ( (e = bdb2i_dn2entry_w( be, dn, &matched )) == NULL ) {
char *matched_dn = NULL;
struct berval **refs = NULL;
if ( matched != NULL ) {
matched_dn = ch_strdup( matched->e_dn );
refs = is_entry_referral( matched )
? get_entry_referrals( be, conn, op, matched )
: NULL;
bdb2i_cache_return_entry_r( &li->li_cache, matched );
} else {
refs = default_referral;
}
send_ldap_result( conn, op, LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
if( matched != NULL ) {
ber_bvecfree( refs );
free( matched_dn );
}
ret = -1;
goto done;
}
if (!manageDSAit && is_entry_referral( e ) ) {
/* entry is a referral, don't allow add */
struct berval **refs = get_entry_referrals( be,
conn, op, e );
Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_REFERRAL,
e->e_dn, NULL, refs, NULL );
bdb2i_cache_return_entry_w( &li->li_cache, e );
ber_bvecfree( refs );
ret = -1;
goto done;
}
ret = bdb2i_back_modify_internal( be, conn, op, dn, modlist, e );
bdb2i_cache_return_entry_w( &li->li_cache, e );
done:
1999-03-05 18:25:55 +08:00
(void) bdb2i_leave_backend_w( lock );
bdb2i_stop_timing( be->bd_info, time1, "MOD", conn, op );
return( ret );
}
int
bdb2i_add_values(
Entry *e,
LDAPMod *mod,
char *dn
)
{
int i;
Attribute *a;
/* check if the values we're adding already exist */
if ( (a = attr_find( e->e_attrs, mod->mod_type )) != NULL ) {
for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
if ( value_find( a->a_vals, mod->mod_bvalues[i],
a->a_syntax, 3 ) == 0 ) {
return( LDAP_TYPE_OR_VALUE_EXISTS );
}
}
}
/* no - add them */
if( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {
return( LDAP_CONSTRAINT_VIOLATION );
}
return( LDAP_SUCCESS );
}
int
bdb2i_delete_values(
Entry *e,
LDAPMod *mod,
char *dn
)
{
int i, j, k, found;
Attribute *a;
/* delete the entire attribute */
if ( mod->mod_bvalues == NULL ) {
Debug( LDAP_DEBUG_ARGS, "removing entire attribute %s\n",
mod->mod_type, 0, 0 );
return( attr_delete( &e->e_attrs, mod->mod_type ) ?
LDAP_NO_SUCH_ATTRIBUTE : LDAP_SUCCESS );
}
/* delete specific values - find the attribute first */
if ( (a = attr_find( e->e_attrs, mod->mod_type )) == NULL ) {
Debug( LDAP_DEBUG_ARGS, "could not find attribute %s\n",
mod->mod_type, 0, 0 );
return( LDAP_NO_SUCH_ATTRIBUTE );
}
/* find each value to delete */
for ( i = 0; mod->mod_bvalues[i] != NULL; i++ ) {
found = 0;
for ( j = 0; a->a_vals[j] != NULL; j++ ) {
if ( value_cmp( mod->mod_bvalues[i], a->a_vals[j],
a->a_syntax, 3 ) != 0 ) {
continue;
}
found = 1;
/* found a matching value - delete it */
ber_bvfree( a->a_vals[j] );
for ( k = j + 1; a->a_vals[k] != NULL; k++ ) {
a->a_vals[k - 1] = a->a_vals[k];
}
a->a_vals[k - 1] = NULL;
/* delete the entire attribute, if no values remain */
if ( a->a_vals[0] == NULL) {
Debug( LDAP_DEBUG_ARGS,
"removing entire attribute %s\n",
mod->mod_type, 0, 0 );
if ( attr_delete( &e->e_attrs, mod->mod_type ) ) {
return LDAP_NO_SUCH_ATTRIBUTE;
}
}
break;
}
/* looked through them all w/o finding it */
if ( ! found ) {
Debug( LDAP_DEBUG_ARGS,
"could not find value for attr %s\n",
mod->mod_type, 0, 0 );
return( LDAP_NO_SUCH_ATTRIBUTE );
}
}
return( LDAP_SUCCESS );
}
int
bdb2i_replace_values(
Entry *e,
LDAPMod *mod,
char *dn
)
{
(void) attr_delete( &e->e_attrs, mod->mod_type );
if ( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {
return( LDAP_CONSTRAINT_VIOLATION );
}
return( LDAP_SUCCESS );
}