int
bdb_modrdn( Operation *op, SlapReply *rs )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
AttributeDescription *children = slap_schema.si_ad_children;
AttributeDescription *entry = slap_schema.si_ad_entry;
struct berval p_dn, p_ndn;
struct berval new_dn = {0, NULL}, new_ndn = {0, NULL};
Entry *e = NULL;
Entry *p = NULL;
EntryInfo *ei = NULL, *eip = NULL, *nei = NULL, *neip = NULL;
/* LDAP v2 supporting correct attribute handling. */
char textbuf[SLAP_TEXT_BUFLEN];
size_t textlen = sizeof textbuf;
DB_TXN *ltid = NULL, *lt2;
struct bdb_op_info opinfo = {{{ 0 }}};
Entry dummy = {0};
Entry *np = NULL; /* newSuperior Entry */
struct berval *np_dn = NULL; /* newSuperior dn */
struct berval *np_ndn = NULL; /* newSuperior ndn */
struct berval *new_parent_dn = NULL; /* np_dn, p_dn, or NULL */
int manageDSAit = get_manageDSAit( op );
DB_LOCK lock, plock, nplock;
int num_retries = 0;
LDAPControl **preread_ctrl = NULL;
LDAPControl **postread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
int rc;
int parent_is_glue = 0;
int parent_is_leaf = 0;
#ifdef LDAP_X_TXN
int settle = 0;
#endif
Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn) "(%s,%s,%s)\n",
op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
#ifdef LDAP_X_TXN
if( op->o_txnSpec ) {
/* acquire connection lock */
ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
rs->sr_text = "invalid transaction identifier";
rs->sr_err = LDAP_X_TXN_ID_INVALID;
goto txnReturn;
} else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
settle=1;
goto txnReturn;
}
if( op->o_conn->c_txn_backend == NULL ) {
op->o_conn->c_txn_backend = op->o_bd;
} else if( op->o_conn->c_txn_backend != op->o_bd ) {
rs->sr_text = "transaction cannot span multiple database contexts";
rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
goto txnReturn;
}
/* insert operation into transaction */
rs->sr_text = "transaction specified";
rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
txnReturn:
/* release connection lock */
ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
if( !settle ) {
send_ldap_result( op, rs );
return rs->sr_err;
}
}
#endif
ctrls[num_ctrls] = NULL;
slap_mods_opattrs( op, &op->orr_modlist, 1 );
if( 0 ) {
retry: /* transaction retry */
if ( dummy.e_attrs ) {
attrs_free( dummy.e_attrs );
dummy.e_attrs = NULL;
}
if (e != NULL) {
bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
e = NULL;
}
if (p != NULL) {
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
if (np != NULL) {
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
np = NULL;
}
Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(bdb_modrdn)
": retrying...\n", 0, 0, 0 );
rs->sr_err = TXN_ABORT( ltid );
ltid = NULL;
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
opinfo.boi_oe.oe_key = NULL;
op->o_do_not_cache = opinfo.boi_acl_cache;
if( rs->sr_err != 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if ( op->o_abandon ) {
rs->sr_err = SLAPD_ABANDON;
goto return_results;
}
parent_is_glue = 0;
parent_is_leaf = 0;
bdb_trans_backoff( ++num_retries );
}
/* begin transaction */
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
bdb->bi_db_opflags );
rs->sr_text = NULL;
if( rs->sr_err != 0 ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn) ": txn_begin failed: "
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": txn1 id: %x\n",
ltid->id(ltid), 0, 0 );
opinfo.boi_oe.oe_key = bdb;
opinfo.boi_txn = ltid;
opinfo.boi_err = 0;
opinfo.boi_acl_cache = op->o_do_not_cache;
LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
/* get entry */
rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
&lock );
switch( rs->sr_err ) {
case 0:
case DB_NOTFOUND:
break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case LDAP_BUSY:
rs->sr_text = "ldap server busy";
goto return_results;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
e = ei->bei_e;
/* FIXME: dn2entry() should return non-glue entry */
if (( rs->sr_err == DB_NOTFOUND ) ||
( !manageDSAit && e && is_entry_glue( e )))
{
if( e != NULL ) {
rs->sr_matched = ch_strdup( e->e_dn );
rs->sr_ref = is_entry_referral( e )
? get_entry_referrals( op, e )
: NULL;
bdb_unlocked_cache_return_entry_r( &bdb->bi_cache, e);
e = NULL;
} else {
rs->sr_ref = referral_rewrite( default_referral, NULL,
&op->o_req_dn, LDAP_SCOPE_DEFAULT );
}
rs->sr_err = LDAP_REFERRAL;
send_ldap_result( op, rs );
ber_bvarray_free( rs->sr_ref );
free( (char *)rs->sr_matched );
rs->sr_ref = NULL;
rs->sr_matched = NULL;
goto done;
}
if ( get_assert( op ) &&
( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
{
rs->sr_err = LDAP_ASSERTION_FAILED;
goto return_results;
}
/* check write on old entry */
rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
if ( ! rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
0, 0 );
rs->sr_text = "no write access to old entry";
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
goto return_results;
}
#ifndef BDB_HIER
rs->sr_err = bdb_cache_children( op, ltid, e );
if ( rs->sr_err != DB_NOTFOUND ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
Debug(LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_modrdn)
": non-leaf %s\n",
op->o_req_dn.bv_val, 0, 0);
rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
rs->sr_text = "subtree rename not supported";
break;
default:
Debug(LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_modrdn)
": has_children failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
}
goto return_results;
}
ei->bei_state |= CACHE_ENTRY_NO_KIDS;
#endif
if (!manageDSAit && is_entry_referral( e ) ) {
/* parent is a referral, don't allow add */
rs->sr_ref = get_entry_referrals( op, e );
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
": entry %s is referral\n", e->e_dn, 0, 0 );
rs->sr_err = LDAP_REFERRAL,
rs->sr_matched = e->e_name.bv_val;
send_ldap_result( op, rs );
ber_bvarray_free( rs->sr_ref );
rs->sr_ref = NULL;
rs->sr_matched = NULL;
goto done;
}
if ( be_issuffix( op->o_bd, &e->e_nname ) ) {
#ifdef BDB_MULTIPLE_SUFFIXES
/* Allow renaming one suffix entry to another */
p_ndn = slap_empty_bv;
#else
/* There can only be one suffix entry */
rs->sr_err = LDAP_NAMING_VIOLATION;
rs->sr_text = "cannot rename suffix entry";
goto return_results;
#endif
} else {
dnParent( &e->e_nname, &p_ndn );
}
np_ndn = &p_ndn;
eip = ei->bei_parent;
if ( eip && eip->bei_id ) {
/* Make sure parent entry exist and we can write its
* children.
*/
rs->sr_err = bdb_cache_find_id( op, ltid,
eip->bei_id, &eip, 0, &plock );
switch( rs->sr_err ) {
case 0:
case DB_NOTFOUND:
break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case LDAP_BUSY:
rs->sr_text = "ldap server busy";
goto return_results;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
p = eip->bei_e;
if( p == NULL) {
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn)
": parent does not exist\n", 0, 0, 0);
rs->sr_err = LDAP_OTHER;
rs->sr_text = "old entry's parent does not exist";
goto return_results;
}
} else {
p = (Entry *)&slap_entry_root;
}
/* check parent for "children" acl */
rs->sr_err = access_allowed( op, p,
children, NULL,
op->oq_modrdn.rs_newSup == NULL ?
ACL_WRITE : ACL_WDEL,
NULL );
if ( !p_ndn.bv_len )
p = NULL;
if ( ! rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
0, 0 );
rs->sr_text = "no write access to old parent's children";
goto return_results;
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn) ": wr to children "
"of entry %s OK\n", p_ndn.bv_val, 0, 0 );
if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
p_dn = slap_empty_bv;
} else {
dnParent( &e->e_name, &p_dn );
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn) ": parent dn=%s\n",
p_dn.bv_val, 0, 0 );
new_parent_dn = &p_dn; /* New Parent unless newSuperior given */
if ( op->oq_modrdn.rs_newSup != NULL ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": new parent \"%s\" requested...\n",
op->oq_modrdn.rs_newSup->bv_val, 0, 0 );
/* newSuperior == oldParent? */
if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
Debug( LDAP_DEBUG_TRACE, "bdb_back_modrdn: "
"new parent \"%s\" same as the old parent \"%s\"\n",
op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val, 0 );
op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
}
}
/* There's a BDB_MULTIPLE_SUFFIXES case here that this code doesn't
* support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
* We do not allow modDN
* dc=foo,dc=com
* newrdn dc=bar
* newsup dc=net
* and we probably should. But since MULTIPLE_SUFFIXES is deprecated
* I'm ignoring this problem for now.
*/
if ( op->oq_modrdn.rs_newSup != NULL ) {
if ( op->oq_modrdn.rs_newSup->bv_len ) {
np_dn = op->oq_modrdn.rs_newSup;
np_ndn = op->oq_modrdn.rs_nnewSup;
/* newSuperior == oldParent? - checked above */
/* newSuperior == entry being moved?, if so ==> ERROR */
if ( dnIsSuffix( np_ndn, &e->e_nname )) {
rs->sr_err = LDAP_NO_SUCH_OBJECT;
rs->sr_text = "new superior not found";
goto return_results;
}
/* Get Entry with dn=newSuperior. Does newSuperior exist? */
rs->sr_err = bdb_dn2entry( op, ltid, np_ndn,
&neip, 0, &nplock );
switch( rs->sr_err ) {
case 0: np = neip->bei_e;
case DB_NOTFOUND:
break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case LDAP_BUSY:
rs->sr_text = "ldap server busy";
goto return_results;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if( np == NULL) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": newSup(ndn=%s) not here!\n",
np_ndn->bv_val, 0, 0);
rs->sr_text = "new superior not found";
rs->sr_err = LDAP_NO_SUCH_OBJECT;
goto return_results;
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": wr to new parent OK np=%p, id=%ld\n",
(void *) np, (long) np->e_id, 0 );
/* check newSuperior for "children" acl */
rs->sr_err = access_allowed( op, np, children,
NULL, ACL_WADD, NULL );
if( ! rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": no wr to newSup children\n",
0, 0, 0 );
rs->sr_text = "no write access to new superior's children";
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
goto return_results;
}
if ( is_entry_alias( np ) ) {
/* parent is an alias, don't allow add */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": entry is alias\n",
0, 0, 0 );
rs->sr_text = "new superior is an alias";
rs->sr_err = LDAP_ALIAS_PROBLEM;
goto return_results;
}
if ( is_entry_referral( np ) ) {
/* parent is a referral, don't allow add */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": entry is referral\n",
0, 0, 0 );
rs->sr_text = "new superior is a referral";
rs->sr_err = LDAP_OTHER;
goto return_results;
}
} else {
np_dn = NULL;
/* no parent, modrdn entry directly under root */
if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
|| be_isupdate( op ) ) {
np = (Entry *)&slap_entry_root;
/* check parent for "children" acl */
rs->sr_err = access_allowed( op, np,
children, NULL, ACL_WADD, NULL );
np = NULL;
if ( ! rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
Debug( LDAP_DEBUG_TRACE,
"no access to new superior\n",
0, 0, 0 );
rs->sr_text =
"no write access to new superior's children";
goto return_results;
}
}
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": wr to new parent's children OK\n",
0, 0, 0 );
new_parent_dn = np_dn;
}
/* Build target dn and make sure target entry doesn't exist already. */
if (!new_dn.bv_val) {
build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, NULL );
}
if (!new_ndn.bv_val) {
struct berval bv = {0, NULL};
dnNormalize( 0, NULL, NULL, &new_dn, &bv, op->o_tmpmemctx );
ber_dupbv( &new_ndn, &bv );
/* FIXME: why not call dnNormalize() w/o ctx? */
op->o_tmpfree( bv.bv_val, op->o_tmpmemctx );
}
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": new ndn=%s\n",
new_ndn.bv_val, 0, 0 );
/* Shortcut the search */
nei = neip ? neip : eip;
rs->sr_err = bdb_cache_find_ndn ( op, ltid, &new_ndn, &nei );
if ( nei ) bdb_cache_entryinfo_unlock( nei );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case DB_NOTFOUND:
break;
case 0:
/* Allow rename to same DN */
if ( nei == ei )
break;
rs->sr_err = LDAP_ALREADY_EXISTS;
goto return_results;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
assert( op->orr_modlist != NULL );
if( op->o_preread ) {
if( preread_ctrl == NULL ) {
preread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, e,
&slap_pre_read_bv, preread_ctrl ) )
{
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_modrdn)
": pre-read failed!\n", 0, 0, 0 );
if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
/* FIXME: is it correct to abort
* operation if control fails? */
goto return_results;
}
}
}
/* nested transaction */
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags );
rs->sr_text = NULL;
if( rs->sr_err != 0 ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": txn_begin(2) failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_modrdn) ": txn2 id: %x\n",
lt2->id(lt2), 0, 0 );
/* delete old DN */
rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
if ( rs->sr_err != 0 ) {
Debug(LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_modrdn)
": dn2id del failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = LDAP_OTHER;
rs->sr_text = "DN index delete fail";
goto return_results;
}
/* copy the entry, then override some fields */
dummy = *e;
dummy.e_name = new_dn;
dummy.e_nname = new_ndn;
dummy.e_attrs = NULL;
/* add new DN */
rs->sr_err = bdb_dn2id_add( op, lt2, neip ? neip : eip, &dummy );
if ( rs->sr_err != 0 ) {
Debug(LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_modrdn)
": dn2id add failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = LDAP_OTHER;
rs->sr_text = "DN index add failed";
goto return_results;
}
dummy.e_attrs = e->e_attrs;
/* modify entry */
rs->sr_err = bdb_modify_internal( op, lt2, op->orr_modlist, &dummy,
&rs->sr_text, textbuf, textlen );
if( rs->sr_err != LDAP_SUCCESS ) {
Debug(LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_modrdn)
": modify failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
if ( ( rs->sr_err == LDAP_INSUFFICIENT_ACCESS ) && opinfo.boi_err ) {
rs->sr_err = opinfo.boi_err;
}
if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
goto return_results;
}
/* id2entry index */
rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
if ( rs->sr_err != 0 ) {
Debug(LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_modrdn)
": id2entry failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = LDAP_OTHER;
rs->sr_text = "entry update failed";
goto return_results;
}
if ( p_ndn.bv_len != 0 ) {
parent_is_glue = is_entry_glue(p);
rs->sr_err = bdb_cache_children( op, lt2, p );
if ( rs->sr_err != DB_NOTFOUND ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
break;
default:
Debug(LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_modrdn)
": has_children failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
parent_is_leaf = 1;
}
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "txn_commit(2) failed";
goto return_results;
}
if( op->o_postread ) {
if( postread_ctrl == NULL ) {
postread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, &dummy,
&slap_post_read_bv, postread_ctrl ) )
{
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_modrdn)
": post-read failed!\n", 0, 0, 0 );
if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
/* FIXME: is it correct to abort
* operation if control fails? */
goto return_results;
}
}
}
if( op->o_noop ) {
if(( rs->sr_err=TXN_ABORT( ltid )) != 0 ) {
rs->sr_text = "txn_abort (no-op) failed";
} else {
rs->sr_err = LDAP_X_NO_OPERATION;
ltid = NULL;
/* Only free attrs if they were dup'd. */
if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
goto return_results;
}
} else {
rc = bdb_cache_modrdn( bdb, e, &op->orr_nnewrdn, &dummy, neip,
ltid, &lock );
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
dummy.e_attrs = NULL;
new_dn.bv_val = NULL;
new_ndn.bv_val = NULL;
if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) {
rs->sr_text = "txn_commit failed";
} else {
rs->sr_err = LDAP_SUCCESS;
}
}
ltid = NULL;
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
opinfo.boi_oe.oe_key = NULL;
if( rs->sr_err != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn) ": %s : %s (%d)\n",
rs->sr_text, db_strerror(rs->sr_err), rs->sr_err );
rs->sr_err = LDAP_OTHER;
goto return_results;
}
Debug(LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_modrdn)
": rdn modified%s id=%08lx dn=\"%s\"\n",
op->o_noop ? " (no-op)" : "",
dummy.e_id, op->o_req_dn.bv_val );
rs->sr_text = NULL;
if( num_ctrls ) rs->sr_ctrls = ctrls;
return_results:
if ( dummy.e_attrs ) {
attrs_free( dummy.e_attrs );
}
send_ldap_result( op, rs );
if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
TXN_CHECKPOINT( bdb->bi_dbenv,
bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
}
if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
op->o_delete_glue_parent = 1;
}
done:
slap_graduate_commit_csn( op );
if( new_dn.bv_val != NULL ) free( new_dn.bv_val );
if( new_ndn.bv_val != NULL ) free( new_ndn.bv_val );
/* LDAP v3 Support */
if( np != NULL ) {
/* free new parent and reader lock */
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, np);
}
if( p != NULL ) {
/* free parent and reader lock */
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
}
/* free entry */
if( e != NULL ) {
bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e);
}
if( ltid != NULL ) {
TXN_ABORT( ltid );
}
if ( opinfo.boi_oe.oe_key ) {
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
}
if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
}
if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
}
return rs->sr_err;
}
int
bdb_delete( Operation *op, SlapReply *rs )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
Entry *matched = NULL;
struct berval pdn = {0, NULL};
Entry *e = NULL;
Entry *p = NULL;
EntryInfo *ei = NULL, *eip = NULL;
int manageDSAit = get_manageDSAit( op );
AttributeDescription *children = slap_schema.si_ad_children;
AttributeDescription *entry = slap_schema.si_ad_entry;
DB_TXN *ltid = NULL, *lt2;
struct bdb_op_info opinfo = {{{ 0 }}};
ID eid;
DB_LOCK lock, plock;
int num_retries = 0;
int rc;
LDAPControl **preread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
int parent_is_glue = 0;
int parent_is_leaf = 0;
#ifdef LDAP_X_TXN
int settle = 0;
#endif
Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
op->o_req_dn.bv_val, 0, 0 );
#ifdef LDAP_X_TXN
if( op->o_txnSpec ) {
/* acquire connection lock */
ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
rs->sr_text = "invalid transaction identifier";
rs->sr_err = LDAP_X_TXN_ID_INVALID;
goto txnReturn;
} else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
settle=1;
goto txnReturn;
}
if( op->o_conn->c_txn_backend == NULL ) {
op->o_conn->c_txn_backend = op->o_bd;
} else if( op->o_conn->c_txn_backend != op->o_bd ) {
rs->sr_text = "transaction cannot span multiple database contexts";
rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
goto txnReturn;
}
/* insert operation into transaction */
rs->sr_text = "transaction specified";
rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
txnReturn:
/* release connection lock */
ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
if( !settle ) {
send_ldap_result( op, rs );
return rs->sr_err;
}
}
#endif
ctrls[num_ctrls] = 0;
/* allocate CSN */
if ( BER_BVISNULL( &op->o_csn ) ) {
struct berval csn;
char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
csn.bv_val = csnbuf;
csn.bv_len = sizeof(csnbuf);
slap_get_csn( op, &csn, 1 );
}
if( 0 ) {
retry: /* transaction retry */
if( e != NULL ) {
bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
e = NULL;
}
if( p != NULL ) {
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
Debug( LDAP_DEBUG_TRACE,
"==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
0, 0, 0 );
rs->sr_err = TXN_ABORT( ltid );
ltid = NULL;
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
opinfo.boi_oe.oe_key = NULL;
op->o_do_not_cache = opinfo.boi_acl_cache;
if( rs->sr_err != 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if ( op->o_abandon ) {
rs->sr_err = SLAPD_ABANDON;
goto return_results;
}
parent_is_glue = 0;
parent_is_leaf = 0;
bdb_trans_backoff( ++num_retries );
}
/* begin transaction */
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
bdb->bi_db_opflags );
rs->sr_text = NULL;
if( rs->sr_err != 0 ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
opinfo.boi_oe.oe_key = bdb;
opinfo.boi_txn = ltid;
opinfo.boi_err = 0;
opinfo.boi_acl_cache = op->o_do_not_cache;
LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
dnParent( &op->o_req_ndn, &pdn );
}
/* get entry */
rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
&lock );
switch( rs->sr_err ) {
case 0:
case DB_NOTFOUND:
break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case LDAP_BUSY:
rs->sr_text = "ldap server busy";
goto return_results;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if ( rs->sr_err == 0 ) {
e = ei->bei_e;
eip = ei->bei_parent;
} else {
matched = ei->bei_e;
}
/* FIXME : dn2entry() should return non-glue entry */
if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
Debug( LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
op->o_req_dn.bv_val, 0, 0);
if ( matched != NULL ) {
rs->sr_matched = ch_strdup( matched->e_dn );
rs->sr_ref = is_entry_referral( matched )
? get_entry_referrals( op, matched )
: NULL;
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
matched = NULL;
} else {
rs->sr_ref = referral_rewrite( default_referral, NULL,
&op->o_req_dn, LDAP_SCOPE_DEFAULT );
}
rs->sr_err = LDAP_REFERRAL;
rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
goto return_results;
}
rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, &plock );
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
case DB_NOTFOUND:
break;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if ( eip ) p = eip->bei_e;
if ( pdn.bv_len != 0 ) {
if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": parent "
"does not exist\n", 0, 0, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "could not locate parent of entry";
goto return_results;
}
/* check parent for "children" acl */
rs->sr_err = access_allowed( op, p,
children, NULL, ACL_WDEL, NULL );
if ( !rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": no write "
"access to parent\n", 0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
rs->sr_text = "no write access to parent";
goto return_results;
}
} else {
/* no parent, must be root to delete */
if( ! be_isroot( op ) ) {
if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
|| be_shadow_update( op ) ) {
p = (Entry *)&slap_entry_root;
/* check parent for "children" acl */
rs->sr_err = access_allowed( op, p,
children, NULL, ACL_WDEL, NULL );
p = NULL;
if ( !rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete)
": no access to parent\n",
0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
rs->sr_text = "no write access to parent";
goto return_results;
}
} else {
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete)
": no parent and not root\n", 0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
goto return_results;
}
}
}
if ( get_assert( op ) &&
( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
{
rs->sr_err = LDAP_ASSERTION_FAILED;
goto return_results;
}
rs->sr_err = access_allowed( op, e,
entry, NULL, ACL_WDEL, NULL );
if ( !rs->sr_err ) {
switch( opinfo.boi_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": no write access "
"to entry\n", 0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
rs->sr_text = "no write access to entry";
goto return_results;
}
if ( !manageDSAit && is_entry_referral( e ) ) {
/* entry is a referral, don't allow delete */
rs->sr_ref = get_entry_referrals( op, e );
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_delete) ": entry is referral\n",
0, 0, 0 );
rs->sr_err = LDAP_REFERRAL;
rs->sr_matched = ch_strdup( e->e_name.bv_val );
rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
goto return_results;
}
/* pre-read */
if( op->o_preread ) {
if( preread_ctrl == NULL ) {
preread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if( slap_read_controls( op, rs, e,
&slap_pre_read_bv, preread_ctrl ) )
{
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
"failed!\n", 0, 0, 0 );
if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
/* FIXME: is it correct to abort
* operation if control fails? */
goto return_results;
}
}
}
/* nested transaction */
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
bdb->bi_db_opflags );
rs->sr_text = NULL;
if( rs->sr_err != 0 ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Starting delete %s(%d)",
e->e_nname.bv_val, e->e_id );
/* Can't do it if we have kids */
rs->sr_err = bdb_cache_children( op, lt2, e );
if( rs->sr_err != DB_NOTFOUND ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
Debug(LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_delete)
": non-leaf %s\n",
op->o_req_dn.bv_val, 0, 0);
rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
rs->sr_text = "subordinate objects must be deleted first";
break;
default:
Debug(LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_delete)
": has_children failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
}
goto return_results;
}
/* delete from dn2id */
rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
if ( rs->sr_err != 0 ) {
Debug(LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_text = "DN index delete failed";
rs->sr_err = LDAP_OTHER;
goto return_results;
}
/* delete indices for old attributes */
rs->sr_err = bdb_index_entry_del( op, lt2, e );
if ( rs->sr_err != LDAP_SUCCESS ) {
Debug(LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_text = "entry index delete failed";
rs->sr_err = LDAP_OTHER;
goto return_results;
}
/* fixup delete CSN */
if ( !SLAP_SHADOW( op->o_bd )) {
struct berval vals[2];
assert( !BER_BVISNULL( &op->o_csn ) );
vals[0] = op->o_csn;
BER_BVZERO( &vals[1] );
rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
vals, 0, SLAP_INDEX_ADD_OP );
if ( rs->sr_err != LDAP_SUCCESS ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_text = "entryCSN index update failed";
rs->sr_err = LDAP_OTHER;
goto return_results;
}
}
/* delete from id2entry */
rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
if ( rs->sr_err != 0 ) {
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
"%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_text = "entry delete failed";
rs->sr_err = LDAP_OTHER;
goto return_results;
}
if ( pdn.bv_len != 0 ) {
parent_is_glue = is_entry_glue(p);
rs->sr_err = bdb_cache_children( op, lt2, p );
if ( rs->sr_err != DB_NOTFOUND ) {
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case 0:
break;
default:
Debug(LDAP_DEBUG_ARGS,
"<=- " LDAP_XSTRING(bdb_delete)
": has_children failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
parent_is_leaf = 1;
}
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
p = NULL;
}
BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Commit1 delete %s(%d)",
e->e_nname.bv_val, e->e_id );
if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "txn_commit(2) failed";
goto return_results;
}
eid = e->e_id;
#if 0 /* Do we want to reclaim deleted IDs? */
ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
if ( e->e_id == bdb->bi_lastid ) {
bdb_last_id( op->o_bd, ltid );
}
ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
#endif
if( op->o_noop ) {
if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
rs->sr_text = "txn_abort (no-op) failed";
} else {
rs->sr_err = LDAP_X_NO_OPERATION;
ltid = NULL;
goto return_results;
}
} else {
BDB_LOG_PRINTF( bdb->bi_dbenv, ltid, "slapd Cache delete %s(%d)",
e->e_nname.bv_val, e->e_id );
rc = bdb_cache_delete( bdb, e, ltid, &lock );
switch( rc ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_err = TXN_COMMIT( ltid, 0 );
}
ltid = NULL;
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
opinfo.boi_oe.oe_key = NULL;
BDB_LOG_PRINTF( bdb->bi_dbenv, NULL, "slapd Committed delete %s(%d)",
e->e_nname.bv_val, e->e_id );
if( rs->sr_err != 0 ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
op->o_noop ? "abort (no-op)" : "commit",
db_strerror(rs->sr_err), rs->sr_err );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "commit failed";
goto return_results;
}
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
op->o_noop ? " (no-op)" : "",
eid, op->o_req_dn.bv_val );
rs->sr_err = LDAP_SUCCESS;
rs->sr_text = NULL;
if( num_ctrls ) rs->sr_ctrls = ctrls;
return_results:
if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
op->o_delete_glue_parent = 1;
}
if ( p )
bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
/* free entry */
if( e != NULL ) {
if ( rs->sr_err == LDAP_SUCCESS ) {
/* Free the EntryInfo and the Entry */
bdb_cache_entryinfo_lock( BEI(e) );
bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
} else {
bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
}
}
if( ltid != NULL ) {
TXN_ABORT( ltid );
}
if ( opinfo.boi_oe.oe_key ) {
LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
}
send_ldap_result( op, rs );
slap_graduate_commit_csn( op );
if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
}
if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
TXN_CHECKPOINT( bdb->bi_dbenv,
bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
}
return rs->sr_err;
}