diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 11:11:40 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 11:11:40 +0000 |
commit | 7731832751ab9f3c6ddeb66f186d3d7fa1934a6d (patch) | |
tree | e91015872543a59be2aad26c2fea02e41b57005d /servers/slapd/back-bdb/modify.c | |
parent | Initial commit. (diff) | |
download | openldap-upstream/2.4.57+dfsg.tar.xz openldap-upstream/2.4.57+dfsg.zip |
Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | servers/slapd/back-bdb/modify.c | 835 |
1 files changed, 835 insertions, 0 deletions
diff --git a/servers/slapd/back-bdb/modify.c b/servers/slapd/back-bdb/modify.c new file mode 100644 index 0000000..038deaa --- /dev/null +++ b/servers/slapd/back-bdb/modify.c @@ -0,0 +1,835 @@ +/* modify.c - bdb backend modify routine */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2000-2021 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ + +#include "portable.h" + +#include <stdio.h> +#include <ac/string.h> +#include <ac/time.h> + +#include "back-bdb.h" + +static struct berval scbva[] = { + BER_BVC("glue"), + BER_BVNULL +}; + +static void +bdb_modify_idxflags( + Operation *op, + AttributeDescription *desc, + int got_delete, + Attribute *newattrs, + Attribute *oldattrs ) +{ + struct berval ix_at; + AttrInfo *ai; + + /* check if modified attribute was indexed + * but not in case of NOOP... */ + ai = bdb_index_mask( op->o_bd, desc, &ix_at ); + if ( ai ) { + if ( got_delete ) { + Attribute *ap; + struct berval ix2; + + ap = attr_find( oldattrs, desc ); + if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL; + + /* Find all other attrs that index to same slot */ + for ( ap = newattrs; ap; ap = ap->a_next ) { + ai = bdb_index_mask( op->o_bd, ap->a_desc, &ix2 ); + if ( ai && ix2.bv_val == ix_at.bv_val ) + ap->a_flags |= SLAP_ATTR_IXADD; + } + + } else { + Attribute *ap; + + ap = attr_find( newattrs, desc ); + if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD; + } + } +} + +int bdb_modify_internal( + Operation *op, + DB_TXN *tid, + Modifications *modlist, + Entry *e, + const char **text, + char *textbuf, + size_t textlen ) +{ + int rc, err; + Modification *mod; + Modifications *ml; + Attribute *save_attrs; + Attribute *ap; + int glue_attr_delete = 0; + int got_delete; + + Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n", + e->e_id, e->e_dn, 0); + + if ( !acl_check_modlist( op, e, modlist )) { + return LDAP_INSUFFICIENT_ACCESS; + } + + /* 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 ) { + int match; + mod = &ml->sml_mod; + switch( mod->sm_op ) { + case LDAP_MOD_ADD: + case LDAP_MOD_REPLACE: + if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) { + value_match( &match, slap_schema.si_ad_structuralObjectClass, + slap_schema.si_ad_structuralObjectClass-> + ad_type->sat_equality, + SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX, + &mod->sm_values[0], &scbva[0], text ); + if ( !match ) glue_attr_delete = 1; + } + } + if ( glue_attr_delete ) + break; + } + + if ( glue_attr_delete ) { + Attribute **app = &e->e_attrs; + while ( *app != NULL ) { + if ( !is_at_operational( (*app)->a_desc->ad_type )) { + Attribute *save = *app; + *app = (*app)->a_next; + attr_free( save ); + continue; + } + app = &(*app)->a_next; + } + } + + for ( ml = modlist; ml != NULL; ml = ml->sml_next ) { + mod = &ml->sml_mod; + got_delete = 0; + + switch ( mod->sm_op ) { + case LDAP_MOD_ADD: + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: add %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + err = modify_add_values( e, mod, get_permissiveModify(op), + text, textbuf, textlen ); + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } + break; + + case LDAP_MOD_DELETE: + if ( glue_attr_delete ) { + err = LDAP_SUCCESS; + break; + } + + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: delete %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + err = modify_delete_values( e, mod, get_permissiveModify(op), + text, textbuf, textlen ); + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } else { + got_delete = 1; + } + break; + + case LDAP_MOD_REPLACE: + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: replace %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + err = modify_replace_values( e, mod, get_permissiveModify(op), + text, textbuf, textlen ); + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } else { + got_delete = 1; + } + break; + + case LDAP_MOD_INCREMENT: + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: increment %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + err = modify_increment_values( e, mod, get_permissiveModify(op), + text, textbuf, textlen ); + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: %d %s\n", + err, *text, 0); + } else { + got_delete = 1; + } + break; + + case SLAP_MOD_SOFTADD: + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: softadd %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + /* 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 ); + + mod->sm_op = SLAP_MOD_SOFTADD; + + if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) { + err = LDAP_SUCCESS; + } + + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } + break; + + case SLAP_MOD_SOFTDEL: + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: softdel %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + /* Avoid problems in index_delete_mods() + * We need to add index if necessary. + */ + mod->sm_op = LDAP_MOD_DELETE; + + err = modify_delete_values( e, mod, get_permissiveModify(op), + text, textbuf, textlen ); + + mod->sm_op = SLAP_MOD_SOFTDEL; + + if ( err == LDAP_SUCCESS ) { + got_delete = 1; + } else if ( err == LDAP_NO_SUCH_ATTRIBUTE ) { + err = LDAP_SUCCESS; + } + + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } + break; + + case SLAP_MOD_ADD_IF_NOT_PRESENT: + if ( attr_find( e->e_attrs, mod->sm_desc ) != NULL ) { + /* skip */ + err = LDAP_SUCCESS; + break; + } + + Debug(LDAP_DEBUG_ARGS, + "bdb_modify_internal: add_if_not_present %s\n", + mod->sm_desc->ad_cname.bv_val, 0, 0); + /* 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 ); + + mod->sm_op = SLAP_MOD_ADD_IF_NOT_PRESENT; + + if( err != LDAP_SUCCESS ) { + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } + break; + + default: + Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n", + mod->sm_op, 0, 0); + *text = "Invalid modify operation"; + err = LDAP_OTHER; + Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n", + err, *text, 0); + } + + 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; + } + + if ( glue_attr_delete ) e->e_ocflags = 0; + + + /* check if modified attribute was indexed + * but not in case of NOOP... */ + if ( !op->o_noop ) { + bdb_modify_idxflags( op, mod->sm_desc, got_delete, e->e_attrs, save_attrs ); + } + } + + /* check that the entry still obeys the schema */ + ap = NULL; + rc = entry_schema_check( op, e, save_attrs, get_relax(op), 0, &ap, + text, textbuf, textlen ); + if ( rc != LDAP_SUCCESS || op->o_noop ) { + attrs_free( e->e_attrs ); + /* clear the indexing flags */ + for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) { + ap->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL); + } + e->e_attrs = save_attrs; + + if ( rc != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_ANY, + "entry failed schema check: %s\n", + *text, 0, 0 ); + } + + /* if NOOP then silently revert to saved attrs */ + return rc; + } + + /* structuralObjectClass modified! */ + if ( ap ) { + assert( ap->a_desc == slap_schema.si_ad_structuralObjectClass ); + if ( !op->o_noop ) { + bdb_modify_idxflags( op, slap_schema.si_ad_structuralObjectClass, + 1, e->e_attrs, save_attrs ); + } + } + + /* 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 ) { + struct berval *vals; + Attribute *a2; + ap->a_flags &= ~SLAP_ATTR_IXDEL; + a2 = attr_find( e->e_attrs, ap->a_desc ); + if ( a2 ) { + /* need to detect which values were deleted */ + int i, j; + /* let add know there were deletes */ + if ( a2->a_flags & SLAP_ATTR_IXADD ) + a2->a_flags |= SLAP_ATTR_IXDEL; + vals = op->o_tmpalloc( (ap->a_numvals + 1) * + sizeof(struct berval), op->o_tmpmemctx ); + j = 0; + for ( i=0; i < ap->a_numvals; i++ ) { + rc = attr_valfind( a2, SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH, + &ap->a_nvals[i], NULL, op->o_tmpmemctx ); + /* Save deleted values */ + if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) + vals[j++] = ap->a_nvals[i]; + } + BER_BVZERO(vals+j); + } else { + /* attribute was completely deleted */ + vals = ap->a_nvals; + } + rc = 0; + if ( !BER_BVISNULL( vals )) { + rc = bdb_index_values( op, tid, ap->a_desc, + vals, e->e_id, SLAP_INDEX_DELETE_OP ); + if ( rc != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_ANY, + "%s: attribute \"%s\" index delete failure\n", + op->o_log_prefix, ap->a_desc->ad_cname.bv_val, 0 ); + attrs_free( e->e_attrs ); + e->e_attrs = save_attrs; + } + } + if ( vals != ap->a_nvals ) + op->o_tmpfree( vals, op->o_tmpmemctx ); + if ( rc ) return rc; + } + } + + /* add the new index entries */ + for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) { + if (ap->a_flags & SLAP_ATTR_IXADD) { + ap->a_flags &= ~SLAP_ATTR_IXADD; + if ( ap->a_flags & SLAP_ATTR_IXDEL ) { + /* if any values were deleted, we must readd index + * for all remaining values. + */ + ap->a_flags &= ~SLAP_ATTR_IXDEL; + rc = bdb_index_values( op, tid, ap->a_desc, + ap->a_nvals, + e->e_id, SLAP_INDEX_ADD_OP ); + } else { + int found = 0; + /* if this was only an add, we only need to index + * the added values. + */ + for ( ml = modlist; ml != NULL; ml = ml->sml_next ) { + struct berval *vals; + if ( ml->sml_desc != ap->a_desc || !ml->sml_numvals ) + continue; + found = 1; + switch( ml->sml_op ) { + case LDAP_MOD_ADD: + case LDAP_MOD_REPLACE: + case LDAP_MOD_INCREMENT: + case SLAP_MOD_SOFTADD: + case SLAP_MOD_ADD_IF_NOT_PRESENT: + if ( ml->sml_op == LDAP_MOD_INCREMENT ) + vals = ap->a_nvals; + else if ( ml->sml_nvalues ) + vals = ml->sml_nvalues; + else + vals = ml->sml_values; + rc = bdb_index_values( op, tid, ap->a_desc, + vals, e->e_id, SLAP_INDEX_ADD_OP ); + break; + } + if ( rc ) + break; + } + /* This attr was affected by a modify of a subtype, so + * there was no direct match in the modlist. Just readd + * all of its values. + */ + if ( !found ) { + rc = bdb_index_values( op, tid, ap->a_desc, + ap->a_nvals, + e->e_id, SLAP_INDEX_ADD_OP ); + } + } + if ( rc != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_ANY, + "%s: attribute \"%s\" index add failure\n", + op->o_log_prefix, ap->a_desc->ad_cname.bv_val, 0 ); + attrs_free( e->e_attrs ); + e->e_attrs = save_attrs; + return rc; + } + } + } + + return rc; +} + + +int +bdb_modify( Operation *op, SlapReply *rs ) +{ + struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private; + Entry *e = NULL; + EntryInfo *ei = NULL; + int manageDSAit = get_manageDSAit( op ); + char textbuf[SLAP_TEXT_BUFLEN]; + size_t textlen = sizeof textbuf; + DB_TXN *ltid = NULL, *lt2; + struct bdb_op_info opinfo = {{{ 0 }}}; + Entry dummy = {0}; + + DB_LOCK lock; + + int num_retries = 0; + + LDAPControl **preread_ctrl = NULL; + LDAPControl **postread_ctrl = NULL; + LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS]; + int num_ctrls = 0; + + int rc; + +#ifdef LDAP_X_TXN + int settle = 0; +#endif + + Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %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] = NULL; + + /* Don't touch the opattrs, if this is a contextCSN update + * initiated from updatedn */ + if ( !be_isupdate(op) || !op->orm_modlist || op->orm_modlist->sml_next || + op->orm_modlist->sml_desc != slap_schema.si_ad_contextCSN ) { + + slap_mods_opattrs( op, &op->orm_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; + } + Debug(LDAP_DEBUG_TRACE, + LDAP_XSTRING(bdb_modify) ": 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; + } + 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_modify) ": 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_modify) ": 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 or ancestor */ + rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1, + &lock ); + + if ( rs->sr_err != 0 ) { + Debug( LDAP_DEBUG_TRACE, + LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n", + rs->sr_err, 0, 0 ); + switch( rs->sr_err ) { + case DB_LOCK_DEADLOCK: + case DB_LOCK_NOTGRANTED: + goto retry; + case DB_NOTFOUND: + break; + 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; + + /* acquire and lock entry */ + /* 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 ); + + if ( rs->sr_ref != default_referral ) { + ber_bvarray_free( rs->sr_ref ); + } + free( (char *)rs->sr_matched ); + rs->sr_ref = NULL; + rs->sr_matched = NULL; + + goto done; + } + + if ( !manageDSAit && is_entry_referral( e ) ) { + /* entry is a referral, don't allow modify */ + rs->sr_ref = get_entry_referrals( op, e ); + + Debug( LDAP_DEBUG_TRACE, + LDAP_XSTRING(bdb_modify) ": entry is referral\n", + 0, 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 ( get_assert( op ) && + ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE )) + { + rs->sr_err = LDAP_ASSERTION_FAILED; + goto return_results; + } + + 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_modify) ": 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_modify) ": 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_modify) ": txn2 id: %x\n", + lt2->id(lt2), 0, 0 ); + /* Modify the entry */ + dummy = *e; + rs->sr_err = bdb_modify_internal( op, lt2, op->orm_modlist, + &dummy, &rs->sr_text, textbuf, textlen ); + + if( rs->sr_err != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, + LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n", + rs->sr_err, 0, 0 ); + if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) { + rs->sr_err = opinfo.boi_err; + } + /* Only free attrs if they were dup'd. */ + 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; + } + + /* change the entry itself */ + rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy ); + if ( rs->sr_err != 0 ) { + Debug( LDAP_DEBUG_TRACE, + LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n", + rs->sr_err, 0, 0 ); + switch( rs->sr_err ) { + case DB_LOCK_DEADLOCK: + case DB_LOCK_NOTGRANTED: + goto retry; + } + rs->sr_text = "entry update failed"; + goto return_results; + } + + 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_modify) + ": 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 { + /* may have changed in bdb_modify_internal() */ + e->e_ocflags = dummy.e_ocflags; + rc = bdb_cache_modify( bdb, e, dummy.e_attrs, ltid, &lock ); + switch( rc ) { + case DB_LOCK_DEADLOCK: + case DB_LOCK_NOTGRANTED: + goto retry; + } + dummy.e_attrs = NULL; + + 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; + + if( rs->sr_err != 0 ) { + Debug( LDAP_DEBUG_TRACE, + LDAP_XSTRING(bdb_modify) ": 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_modify) ": updated%s id=%08lx dn=\"%s\"\n", + op->o_noop ? " (no-op)" : "", + dummy.e_id, 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( 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 ); + } + +done: + slap_graduate_commit_csn( op ); + + 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( e != NULL ) { + bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e); + } + + 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 ); + } + + rs->sr_text = NULL; + + return rs->sr_err; +} |