mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
322 lines
6.8 KiB
C
322 lines
6.8 KiB
C
/* passwd.c - bdb backend password routines */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include "back-bdb.h"
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#include "external.h"
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#include "lber_pvt.h"
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int
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bdb_exop_passwd( Operation *op, SlapReply *rs )
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{
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struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
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int rc;
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Entry *e = NULL;
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EntryInfo *ei;
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struct berval hash = { 0, NULL };
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DB_TXN *ltid = NULL, *lt2;
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struct bdb_op_info opinfo;
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char textbuf[SLAP_TEXT_BUFLEN];
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size_t textlen = sizeof textbuf;
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struct berval id = { 0, NULL };
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struct berval new = { 0, NULL };
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struct berval dn = { 0, NULL };
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struct berval ndn = { 0, NULL };
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u_int32_t locker = 0;
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DB_LOCK lock;
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int num_retries = 0;
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assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->oq_extended.rs_reqoid ) == 0 );
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rc = slap_passwd_parse( op->oq_extended.rs_reqdata,
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&id, NULL, &new, &rs->sr_text );
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#ifdef NEW_LOGGING
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LDAP_LOG ( ACL, ENTRY,
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"==>bdb_exop_passwd: \"%s\"\n", id.bv_val ? id.bv_val : "", 0, 0 );
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#else
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Debug( LDAP_DEBUG_ARGS, "==> bdb_exop_passwd: \"%s\"\n",
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id.bv_val ? id.bv_val : "", 0, 0 );
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#endif
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if( rc != LDAP_SUCCESS ) {
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goto done;
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}
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if( new.bv_len == 0 ) {
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slap_passwd_generate(&new);
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if( new.bv_len == 0 ) {
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rs->sr_text = "password generation failed.";
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rc = LDAP_OTHER;
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goto done;
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}
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rs->sr_rspdata = slap_passwd_return( &new );
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}
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slap_passwd_hash( &new, &hash, &rs->sr_text );
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if( hash.bv_len == 0 ) {
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if( !rs->sr_text ) rs->sr_text = "password hash failed";
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rc = LDAP_OTHER;
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goto done;
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}
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if( id.bv_len ) {
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dn = id;
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} else {
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dn = op->o_dn;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( ACL, DETAIL1, "bdb_exop_passwd: \"%s\"%s\"\n",
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dn.bv_val, id.bv_len ? " (proxy)" : "", 0 );
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#else
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Debug( LDAP_DEBUG_TRACE, "bdb_exop_passwd: \"%s\"%s\n",
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dn.bv_val, id.bv_len ? " (proxy)" : "", 0 );
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#endif
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if( dn.bv_len == 0 ) {
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rs->sr_text = "No password is associated with the Root DSE";
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rc = LDAP_UNWILLING_TO_PERFORM;
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goto done;
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}
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rc = dnNormalize( 0, NULL, NULL, &dn, &ndn, op->o_tmpmemctx );
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if( rc != LDAP_SUCCESS ) {
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rs->sr_text = "Invalid DN";
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goto done;
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}
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if( 0 ) {
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retry: /* transaction retry */
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if ( e != NULL ) {
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bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
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}
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#ifdef NEW_LOGGING
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LDAP_LOG ( ACL, DETAIL1, "bdb_exop_passwd: retrying...\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE, "bdb_exop_passwd: retrying...\n", 0, 0, 0 );
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#endif
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rc = TXN_ABORT( ltid );
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ltid = NULL;
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op->o_private = NULL;
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op->o_do_not_cache = opinfo.boi_acl_cache;
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if( rc != 0 ) {
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rc = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto done;
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}
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ldap_pvt_thread_yield();
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bdb_trans_backoff( ++num_retries );
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}
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/* begin transaction */
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rc = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
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bdb->bi_db_opflags );
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rs->sr_text = NULL;
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( ACL, ERR,
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"bdb_exop_passwd: txn_begin failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_exop_passwd: txn_begin failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#endif
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rc = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto done;
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}
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locker = TXN_ID ( ltid );
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opinfo.boi_bdb = op->o_bd;
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opinfo.boi_txn = ltid;
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opinfo.boi_locker = locker;
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opinfo.boi_err = 0;
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opinfo.boi_acl_cache = op->o_do_not_cache;
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op->o_private = &opinfo;
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/* get entry */
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rc = bdb_dn2entry( op, ltid, &ndn, &ei, 0 , locker, &lock );
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switch(rc) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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case DB_NOTFOUND:
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case 0:
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break;
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case LDAP_BUSY:
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rs->sr_text = "ldap server busy";
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goto done;
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default:
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rc = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto done;
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}
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if ( ei ) e = ei->bei_e;
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if ( e == NULL || is_entry_glue( e )) {
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/* FIXME: dn2entry() should return non-glue entry */
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rs->sr_text = "could not locate authorization entry";
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rc = LDAP_NO_SUCH_OBJECT;
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goto done;
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}
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#ifdef BDB_SUBENTRIES
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if( is_entry_subentry( e ) ) {
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/* entry is a subentry, don't allow operation */
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rs->sr_text = "authorization entry is subentry";
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rc = LDAP_OTHER;
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goto done;
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}
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#endif
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#ifdef BDB_ALIASES
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if( is_entry_alias( e ) ) {
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/* entry is an alias, don't allow operation */
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rs->sr_text = "authorization entry is alias";
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rc = LDAP_ALIAS_PROBLEM;
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goto done;
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}
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#endif
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if( is_entry_referral( e ) ) {
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/* entry is an referral, don't allow operation */
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rs->sr_text = "authorization entry is referral";
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rc = LDAP_OTHER;
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goto done;
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}
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/* nested transaction */
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rc = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
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bdb->bi_db_opflags );
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rs->sr_text = NULL;
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG ( OPERATION, ERR,
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"bdb_exop_passwd: txn_begin(2) failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_exop_passwd: txn_begin(2) failed: %s (%d)\n",
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db_strerror(rs->sr_err), rs->sr_err, 0 );
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#endif
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rc = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto done;
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}
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{
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Modifications ml;
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struct berval vals[2];
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Entry dummy, *save;
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save = e;
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dummy = *e;
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e = &dummy;
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vals[0] = hash;
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vals[1].bv_val = NULL;
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ml.sml_desc = slap_schema.si_ad_userPassword;
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ml.sml_values = vals;
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ml.sml_nvalues = NULL;
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ml.sml_op = LDAP_MOD_REPLACE;
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ml.sml_next = NULL;
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rc = bdb_modify_internal( op, lt2,
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&ml, e, &rs->sr_text, textbuf, textlen );
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if ( (rc == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
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rc = opinfo.boi_err;
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}
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switch(rc) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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rs->sr_text = NULL;
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goto retry;
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case 0:
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rs->sr_text = NULL;
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break;
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default:
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rc = LDAP_OTHER;
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rs->sr_text = "entry modify failed";
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goto done;
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}
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/* change the entry itself */
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rc = bdb_id2entry_update( op->o_bd, lt2, e );
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if( rc != 0 ) {
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switch(rc) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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rs->sr_text = "entry update failed";
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rc = LDAP_OTHER;
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}
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if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
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rc = LDAP_OTHER;
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rs->sr_text = "txn_commit(2) failed";
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}
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if( rc == 0 ) {
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if( op->o_noop ) {
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rc = TXN_ABORT( ltid );
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} else {
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bdb_cache_modify( save, e->e_attrs,
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bdb->bi_dbenv, locker, &lock );
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rc = TXN_COMMIT( ltid, 0 );
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}
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ltid = NULL;
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}
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op->o_private = NULL;
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if( rc == LDAP_SUCCESS ) {
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op->o_req_dn = e->e_name;
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op->o_req_ndn = e->e_nname;
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op->oq_modify.rs_modlist = &ml;
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replog( op );
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op->oq_extended.rs_reqoid = slap_EXOP_MODIFY_PASSWD;
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}
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}
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done:
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if( e != NULL ) {
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bdb_unlocked_cache_return_entry_w( &bdb->bi_cache, e );
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}
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if( hash.bv_val != NULL ) {
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free( hash.bv_val );
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}
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if( ndn.bv_val != NULL ) {
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op->o_tmpfree( ndn.bv_val, op->o_tmpmemctx );
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}
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if( ltid != NULL ) {
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TXN_ABORT( ltid );
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op->o_private = NULL;
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}
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return rc;
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}
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