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

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/* modify.c - bdb backend modify routine */
/* $OpenLDAP$ */
/*
2003-01-04 04:20:47 +08:00
* Copyright 1998-2003 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"
#define INDEXED 0x2000
#define NULLIFIED 0x4000
int bdb_modify_internal(
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 ( OPERATION, ENTRY, "bdb_modify_internal: 0x%08lx: %s\n",
e->e_id, e->e_dn, 0 );
#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( op, e, modlist )) {
return LDAP_INSUFFICIENT_ACCESS;
}
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/* save_attrs will be disposed of by bdb_cache_modify */
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 ( OPERATION, DETAIL1, "bdb_modify_internal: add\n", 0,0,0);
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: add\n", 0, 0, 0);
#endif
err = modify_add_values( e, mod, get_permissiveModify(op),
text, textbuf, textlen );
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify_internal: %d %s\n", err, *text, 0 );
#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 ( OPERATION, DETAIL1,
"bdb_modify_internal: delete\n", 0, 0, 0 );
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: delete\n", 0, 0, 0);
#endif
err = modify_delete_values( e, mod, get_permissiveModify(op),
text, textbuf, textlen );
assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify_internal: %d %s\n", err, *text, 0 );
#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 ( OPERATION, DETAIL1,
"bdb_modify_internal: replace\n", 0, 0, 0 );
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: replace\n", 0, 0, 0);
#endif
err = modify_replace_values( e, mod, get_permissiveModify(op),
text, textbuf, textlen );
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify_internal: %d %s\n", err, *text, 0 );
#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 ( OPERATION, DETAIL1,
"bdb_modify_internal: softadd\n",0,0,0 );
#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, get_permissiveModify(op),
text, textbuf, textlen );
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mod->sm_op = SLAP_MOD_SOFTADD;
if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
err = LDAP_SUCCESS;
}
if( err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify_internal: %d %s\n", err, *text, 0 );
#else
Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
err, *text, 0);
#endif
}
break;
default:
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify_internal: invalid op %d\n", mod->sm_op, 0, 0 );
#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 ( OPERATION, ERR,
"bdb_modify_internal: %d %s\n", err, *text, 0 );
#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 that the entry still obeys the schema */
rc = entry_schema_check( op->o_bd, e, save_attrs, text, textbuf, textlen );
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if ( rc != LDAP_SUCCESS || op->o_noop ) {
attrs_free( e->e_attrs );
e->e_attrs = save_attrs;
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if ( rc != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR, "bdb_modify_internal: "
"entry failed schema check %s\n",
*text, 0, 0 );
#else
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Debug( LDAP_DEBUG_ANY,
"entry failed schema check: %s\n",
*text, 0, 0 );
#endif
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}
/* if NOOP then silently revert to saved attrs */
return rc;
}
/* update the indices of the modified attributes */
if ( !op->o_noop ) {
Modifications *m2;
/* First look for any deletes that would nullify any adds
* in this request. I.e., deleting an entire attribute after
* assigning some values to it.
*/
for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
if (bdb_index_is_indexed( op->o_bd, ml->sml_desc ))
continue;
switch ( ml->sml_op ) {
case LDAP_MOD_DELETE:
/* If just deleting specific values, ignore */
if ( ml->sml_bvalues ) break;
case LDAP_MOD_REPLACE:
for ( m2 = modlist; m2 != ml; m2 = m2->sml_next ) {
if ( m2->sml_desc == ml->sml_desc &&
m2->sml_op != LDAP_MOD_DELETE )
m2->sml_op |= NULLIFIED;
}
break;
}
ml->sml_op |= INDEXED;
}
/* Now index the modifications */
for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
if ( ! (ml->sml_op & INDEXED) ) continue;
ml->sml_op ^= INDEXED;
switch ( ml->sml_op ) {
case LDAP_MOD_DELETE:
if ( ml->sml_bvalues ) {
rc = bdb_index_values( op, tid, ml->sml_desc,
ml->sml_nvalues ? ml->sml_nvalues : ml->sml_bvalues,
e->e_id, SLAP_INDEX_DELETE_OP );
break;
}
/* FALLTHRU */
case LDAP_MOD_REPLACE:
/* A nullified replace still does its delete action */
case LDAP_MOD_REPLACE | NULLIFIED:
ap = attr_find( save_attrs, ml->sml_desc );
if ( ap != NULL ) {
rc = bdb_index_values( op, tid, ap->a_desc,
ap->a_nvals,
e->e_id, SLAP_INDEX_DELETE_OP );
} else {
rc = LDAP_SUCCESS;
}
if ( rc || ml->sml_op == LDAP_MOD_DELETE ||
(ml->sml_op & NULLIFIED))
break;
/* FALLTHRU */
case LDAP_MOD_ADD:
case SLAP_MOD_SOFTADD:
rc = bdb_index_values( op, tid, ml->sml_desc,
ml->sml_nvalues ? ml->sml_nvalues : ml->sml_bvalues,
e->e_id, SLAP_INDEX_ADD_OP );
break;
}
ml->sml_op &= ~NULLIFIED;
if ( rc != LDAP_SUCCESS ) {
attrs_free( e->e_attrs );
e->e_attrs = save_attrs;
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify_internal: attribute index update failure\n",
0, 0, 0 );
#else
Debug( LDAP_DEBUG_ANY,
"Attribute index update failure",
0, 0, 0 );
#endif
/* reset our flags */
for (; ml; ml=ml->sml_next ) {
ml->sml_op &= ~(INDEXED | NULLIFIED);
}
break;
}
}
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}
return rc;
}
int
bdb_modify( Operation *op, SlapReply *rs )
{
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
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Entry *e = NULL;
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EntryInfo *ei = NULL;
int manageDSAit = get_manageDSAit( op );
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char textbuf[SLAP_TEXT_BUFLEN];
size_t textlen = sizeof textbuf;
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DB_TXN *ltid = NULL, *lt2;
struct bdb_op_info opinfo;
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Entry dummy;
u_int32_t locker = 0;
DB_LOCK lock;
int noop = 0;
#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
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Operation* ps_list;
struct psid_entry *pm_list, *pm_prev;
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#endif
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ENTRY, "bdb_modify: %s\n", op->o_req_dn.bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_ARGS, "bdb_modify: %s\n", op->o_req_dn.bv_val, 0, 0 );
#endif
if( 0 ) {
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retry: /* transaction retry */
if( e != NULL ) {
bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
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e = NULL;
}
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1, "bdb_modify: retrying...\n", 0, 0, 0 );
#else
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Debug(LDAP_DEBUG_TRACE,
"bdb_modify: retrying...\n", 0, 0, 0);
#endif
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#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
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while ( pm_list != NULL ) {
LDAP_LIST_REMOVE ( pm_list, ps_link );
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pm_prev = pm_list;
pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
ch_free( pm_prev );
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}
#endif
rs->sr_err = TXN_ABORT( ltid );
ltid = NULL;
op->o_private = 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;
}
ldap_pvt_thread_yield();
}
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/* begin transaction */
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, &ltid,
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bdb->bi_db_opflags );
rs->sr_text = NULL;
if( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
"bdb_modify: txn_begin failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
#else
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Debug( LDAP_DEBUG_TRACE,
"bdb_modify: txn_begin failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
#endif
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
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goto return_results;
}
locker = TXN_ID ( ltid );
opinfo.boi_bdb = op->o_bd;
opinfo.boi_txn = ltid;
opinfo.boi_locker = locker;
opinfo.boi_err = 0;
opinfo.boi_acl_cache = op->o_do_not_cache;
op->o_private = &opinfo;
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/* get entry or ancestor */
rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
locker, &lock );
if ( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1,
"bdb_modify: dn2entry failed: (%d)\n", rs->sr_err, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: dn2entry failed (%d)\n",
rs->sr_err, 0, 0 );
#endif
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
case DB_NOTFOUND:
break;
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case LDAP_BUSY:
rs->sr_text = "ldap server busy";
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goto return_results;
default:
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
}
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e = ei->bei_e;
/* acquire and lock entry */
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if ( rs->sr_err == DB_NOTFOUND ) {
if ( e != NULL ) {
rs->sr_matched = ch_strdup( e->e_dn );
rs->sr_ref = is_entry_referral( e )
? get_entry_referrals( op, e )
: NULL;
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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;
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goto done;
}
if ( !manageDSAit && is_entry_referral( e ) ) {
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/* entry is a referral, don't allow modify */
rs->sr_ref = get_entry_referrals( op, e );
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, DETAIL1, "bdb_modify: entry is referral\n", 0, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: entry is referral\n",
0, 0, 0 );
#endif
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;
}
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#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
bdb_psearch(op, rs, ps_list, e, LDAP_PSEARCH_BY_PREMODIFY );
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}
}
#endif
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/* nested transaction */
rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, &lt2,
bdb->bi_db_opflags );
rs->sr_text = NULL;
if( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify: txn_begin(2) failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: txn_begin(2) failed: %s (%d)\n",
db_strerror(rs->sr_err), rs->sr_err, 0 );
#endif
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
/* Modify the entry */
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dummy = *e;
rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
&dummy, &rs->sr_text, textbuf, textlen );
if( rs->sr_err != LDAP_SUCCESS ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify: modify failed (%d)\n", rs->sr_err, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: modify failed (%d)\n",
rs->sr_err, 0, 0 );
#endif
if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
rs->sr_err = opinfo.boi_err;
}
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
goto return_results;
}
/* change the entry itself */
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rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
if ( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify: id2entry update failed (%d)\n", rs->sr_err, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: id2entry update failed (%d)\n",
rs->sr_err, 0, 0 );
#endif
switch( rs->sr_err ) {
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
}
rs->sr_text = "entry update failed";
goto return_results;
}
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if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "txn_commit(2) failed";
goto return_results;
}
if( op->o_noop ) {
if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
rs->sr_text = "txn_abort (no-op) failed";
} else {
noop = 1;
rs->sr_err = LDAP_SUCCESS;
}
} else {
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bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
rs->sr_err = TXN_COMMIT( ltid, 0 );
}
ltid = NULL;
op->o_private = NULL;
if( rs->sr_err != 0 ) {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, ERR,
"bdb_modify: txn_%s failed %s (%d)\n",
op->o_noop ? "abort (no_op)" : "commit", db_strerror(rs->sr_err), rs->sr_err );
#else
Debug( LDAP_DEBUG_TRACE,
"bdb_modify: txn_%s failed: %s (%d)\n",
op->o_noop ? "abort (no-op)" : "commit",
db_strerror(rs->sr_err), rs->sr_err );
#endif
rs->sr_err = LDAP_OTHER;
rs->sr_text = "commit failed";
} else {
#ifdef NEW_LOGGING
LDAP_LOG ( OPERATION, 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
rs->sr_err = LDAP_SUCCESS;
rs->sr_text = NULL;
}
return_results:
send_ldap_result( op, rs );
#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
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/* Loop through in-scope entries for each psearch spec */
LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_MODIFY );
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}
pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
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while ( pm_list != NULL ) {
bdb_psearch(op, rs, pm_list->ps_op,
e, LDAP_PSEARCH_BY_SCOPEOUT);
LDAP_LIST_REMOVE ( pm_list, ps_link );
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pm_prev = pm_list;
pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
ch_free( pm_prev );
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}
}
#endif
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if( rs->sr_err == 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 ) {
#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
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while ( pm_list != NULL ) {
LDAP_LIST_REMOVE ( pm_list, ps_link );
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pm_prev = pm_list;
pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
ch_free( pm_prev );
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}
#endif
TXN_ABORT( ltid );
op->o_private = NULL;
}
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if( e != NULL ) {
bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
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}
return ( ( rs->sr_err == LDAP_SUCCESS ) ? noop : rs->sr_err );
}