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

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/* modify.c - bdb backend modify routine */
/* $OpenLDAP$ */
/*
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* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/time.h>
#include "back-bdb.h"
#include "external.h"
int bdb_modify_internal(
BackendDB *be,
Connection *conn,
Operation *op,
DB_TXN *tid,
Modifications *modlist,
Entry *e,
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const char **text,
char *textbuf,
size_t textlen )
{
int rc, err;
Modification *mod;
Modifications *ml;
Attribute *save_attrs;
Attribute *ap;
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ENTRY,"bdb_modify_internal: 0x%08lx: %s\n", e->e_id, e->e_dn ));
#else
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Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
e->e_id, e->e_dn, 0);
#endif
if ( !acl_check_modlist( be, conn, op, e, modlist )) {
return LDAP_INSUFFICIENT_ACCESS;
}
save_attrs = e->e_attrs;
e->e_attrs = attrs_dup( e->e_attrs );
for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
mod = &ml->sml_mod;
switch ( mod->sm_op ) {
case LDAP_MOD_ADD:
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify_internal: add\n" ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: add\n", 0, 0, 0);
#endif
err = modify_add_values( e, mod, text, textbuf, textlen );
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: %d %s\n", err, *text ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
err, *text, 0);
#endif
}
break;
case LDAP_MOD_DELETE:
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify_internal: delete\n" ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: delete\n", 0, 0, 0);
#endif
err = modify_delete_values( e, mod, text, textbuf, textlen );
assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: %d %s\n", err, *text ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
err, *text, 0);
#endif
}
break;
case LDAP_MOD_REPLACE:
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify_internal: replace\n" ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: replace\n", 0, 0, 0);
#endif
err = modify_replace_values( e, mod, text, textbuf, textlen );
assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: %d %s\n", err, *text ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
err, *text, 0);
#endif
}
break;
case SLAP_MOD_SOFTADD:
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify_internal: softadd\n" ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: softadd\n", 0, 0, 0);
#endif
/* Avoid problems in index_add_mods()
* We need to add index if necessary.
*/
mod->sm_op = LDAP_MOD_ADD;
err = modify_add_values( e, mod, text, textbuf, textlen );
if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
err = LDAP_SUCCESS;
}
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: %d %s\n", err, *text ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
err, *text, 0);
#endif
}
break;
default:
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: invalid op %d\n", mod->sm_op ));
#else
Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
mod->sm_op, 0, 0);
#endif
*text = "Invalid modify operation";
err = LDAP_OTHER;
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: %d %s\n", err, *text ));
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
err, *text, 0);
#endif
}
if ( err != LDAP_SUCCESS ) {
attrs_free( e->e_attrs );
e->e_attrs = save_attrs;
/* unlock entry, delete from cache */
return err;
}
/* If objectClass was modified, reset the flags */
if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
e->e_ocflags = 0;
}
/* check if modified attribute was indexed */
err = bdb_index_is_indexed( be, mod->sm_desc );
if ( err == LDAP_SUCCESS ) {
ap = attr_find( save_attrs, mod->sm_desc );
if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
ap = attr_find( e->e_attrs, mod->sm_desc );
if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
}
}
/* check that the entry still obeys the schema */
rc = entry_schema_check( be, e, save_attrs, text, textbuf, textlen );
if ( rc != LDAP_SUCCESS ) {
attrs_free( e->e_attrs );
e->e_attrs = save_attrs;
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: entry failed schema check %s\n", *text ));
#else
Debug( LDAP_DEBUG_ANY, "entry failed schema check: %s\n",
*text, 0, 0 );
#endif
return rc;
}
/* update the indices of the modified attributes */
/* start with deleting the old index entries */
for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
rc = bdb_index_values( be, tid, ap->a_desc, ap->a_vals,
e->e_id, SLAP_INDEX_DELETE_OP );
if ( rc != LDAP_SUCCESS ) {
attrs_free( e->e_attrs );
e->e_attrs = save_attrs;
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: attribute index delete failure\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"Attribute index delete failure",
0, 0, 0 );
#endif
return rc;
}
ap->a_flags &= ~SLAP_ATTR_IXDEL;
}
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}
/* add the new index entries */
for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
if (ap->a_flags & SLAP_ATTR_IXADD) {
rc = bdb_index_values( be, tid, ap->a_desc, ap->a_vals,
e->e_id, SLAP_INDEX_ADD_OP );
if ( rc != LDAP_SUCCESS ) {
attrs_free( e->e_attrs );
e->e_attrs = save_attrs;
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify_internal: attribute index add failure\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"Attribute index add failure",
0, 0, 0 );
#endif
return rc;
}
ap->a_flags &= ~SLAP_ATTR_IXADD;
}
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}
return rc;
}
int
bdb_modify(
BackendDB *be,
Connection *conn,
Operation *op,
struct berval *dn,
struct berval *ndn,
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Modifications *modlist )
{
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
int rc;
Entry *matched;
Entry *e;
int manageDSAit = get_manageDSAit( op );
const char *text = NULL;
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char textbuf[SLAP_TEXT_BUFLEN];
size_t textlen = sizeof textbuf;
DB_TXN *ltid = NULL;
struct bdb_op_info opinfo;
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ENTRY, "bdb_modify: %s\n", dn->bv_val ));
#else
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Debug( LDAP_DEBUG_ARGS, "bdb_modify: %s\n", dn->bv_val, 0, 0 );
#endif
if( 0 ) {
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retry: /* transaction retry */
if( e != NULL ) {
bdb_cache_delete_entry(&bdb->bi_cache, e);
bdb_cache_return_entry_w(&bdb->bi_cache, e);
}
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify: retrying...\n" ));
#else
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Debug(LDAP_DEBUG_TRACE,
"bdb_modify: retrying...\n", 0, 0, 0);
#endif
rc = TXN_ABORT( ltid );
ltid = NULL;
op->o_private = NULL;
if( rc != 0 ) {
rc = LDAP_OTHER;
text = "internal error";
goto return_results;
}
ldap_pvt_thread_yield();
}
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/* begin transaction */
rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
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bdb->bi_db_opflags );
text = NULL;
if( rc != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify: txn_begin failed: %s (%d)\n", db_strerror(rc), rc ));
#else
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Debug( LDAP_DEBUG_TRACE,
"bdb_modify: txn_begin failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
#endif
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rc = LDAP_OTHER;
text = "internal error";
goto return_results;
}
opinfo.boi_bdb = be;
opinfo.boi_txn = ltid;
opinfo.boi_err = 0;
op->o_private = &opinfo;
/* get entry */
rc = bdb_dn2entry_w( be, ltid, ndn, &e, &matched, 0 );
if ( rc != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify: dn2entry failed: (%d)\n", rc ));
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: dn2entry failed (%d)\n",
rc, 0, 0 );
#endif
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case DB_NOTFOUND:
break;
default:
rc = LDAP_OTHER;
}
text = "internal error";
goto return_results;
}
/* acquire and lock entry */
if ( e == NULL ) {
char* matched_dn = NULL;
BerVarray refs;
if ( matched != NULL ) {
matched_dn = ch_strdup( matched->e_dn );
refs = is_entry_referral( matched )
? get_entry_referrals( be, conn, op, matched )
: NULL;
bdb_cache_return_entry_r (&bdb->bi_cache, matched);
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matched = NULL;
} else {
refs = referral_rewrite( default_referral,
NULL, dn, LDAP_SCOPE_DEFAULT );
}
send_ldap_result( conn, op, rc = LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
ber_bvarray_free( refs );
free( matched_dn );
return rc;
}
if ( !manageDSAit && is_entry_referral( e ) ) {
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/* entry is a referral, don't allow modify */
BerVarray refs = get_entry_referrals( be,
conn, op, e );
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify: entry is referral\n" ));
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: entry is referral\n",
0, 0, 0 );
#endif
send_ldap_result( conn, op, rc = LDAP_REFERRAL,
e->e_dn, NULL, refs, NULL );
ber_bvarray_free( refs );
goto done;
}
/* Modify the entry */
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rc = bdb_modify_internal( be, conn, op, ltid, modlist, e,
&text, textbuf, textlen );
if( rc != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify: modify failed (%d)\n", rc ));
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: modify failed (%d)\n",
rc, 0, 0 );
#endif
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
goto return_results;
}
/* change the entry itself */
rc = bdb_id2entry_update( be, ltid, e );
if ( rc != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify: id2entry update failed (%d)\n", rc ));
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: id2entry update failed (%d)\n",
rc, 0, 0 );
#endif
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
text = "entry update failed";
goto return_results;
}
if( op->o_noop ) {
rc = TXN_ABORT( ltid );
} else {
rc = TXN_COMMIT( ltid, 0 );
}
ltid = NULL;
op->o_private = NULL;
if( rc != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_ERR, "bdb_modify: txn_%s failed %s (%d)\n", op->o_noop ? "abort (no_op)" : "commit", db_strerror(rc), rc ));
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: txn_%s failed: %s (%d)\n",
op->o_noop ? "abort (no-op)" : "commit",
db_strerror(rc), rc );
#endif
rc = LDAP_OTHER;
text = "commit failed";
} else {
#ifdef NEW_LOGGING
LDAP_LOG (( "modify", LDAP_LEVEL_DETAIL1, "bdb_modify: updated%s id=%08lx dn=\"%s\"\n", op->o_noop ? " (no_op)" : "", e->e_id, e->e_dn ));
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: updated%s id=%08lx dn=\"%s\"\n",
op->o_noop ? " (no-op)" : "",
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e->e_id, e->e_dn );
#endif
rc = LDAP_SUCCESS;
text = NULL;
}
return_results:
send_ldap_result( conn, op, rc,
NULL, text, NULL, NULL );
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if( rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
ldap_pvt_thread_yield();
TXN_CHECKPOINT( bdb->bi_dbenv,
bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
}
done:
if( ltid != NULL ) {
TXN_ABORT( ltid );
op->o_private = NULL;
}
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if( e != NULL ) {
bdb_cache_return_entry_w (&bdb->bi_cache, e);
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}
return rc;
}