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https://git.openldap.org/openldap/openldap.git
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240 lines
4.6 KiB
C
240 lines
4.6 KiB
C
/* passwd.c - bdb backend password routines */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2002 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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int
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bdb_exop_passwd(
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Backend *be,
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Connection *conn,
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Operation *op,
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const char *reqoid,
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struct berval *reqdata,
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char **rspoid,
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struct berval **rspdata,
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LDAPControl *** rspctrls,
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const char **text,
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BerVarray *refs )
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{
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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int rc;
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Entry *e = NULL;
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struct berval hash = { 0, NULL };
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DB_TXN *ltid = NULL;
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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;
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assert( reqoid != NULL );
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assert( strcmp( LDAP_EXOP_MODIFY_PASSWD, reqoid ) == 0 );
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rc = slap_passwd_parse( reqdata,
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&id, NULL, &new, text );
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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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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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*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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*rspdata = slap_passwd_return( &new );
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}
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slap_passwd_hash( &new, &hash );
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if( hash.bv_len == 0 ) {
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*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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dn = id.bv_val ? &id : &op->o_dn;
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Debug( LDAP_DEBUG_TRACE, "bdb_exop_passwd: \"%s\"%s\n",
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dn->bv_val, id.bv_val ? " (proxy)" : "", 0 );
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if( dn->bv_len == 0 ) {
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*text = "No password is associated with the Root DSE";
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rc = LDAP_OPERATIONS_ERROR;
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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_cache_delete_entry(&bdb->bi_cache, e);
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bdb_cache_return_entry_w(&bdb->bi_cache, e);
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}
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Debug( LDAP_DEBUG_TRACE, "bdb_exop_passwd: retrying...\n", 0, 0, 0 );
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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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if( rc != 0 ) {
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rc = LDAP_OTHER;
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*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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}
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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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*text = NULL;
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if( rc != 0 ) {
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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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rc = LDAP_OTHER;
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*text = "internal error";
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goto done;
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}
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opinfo.boi_bdb = be;
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opinfo.boi_txn = ltid;
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opinfo.boi_err = 0;
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op->o_private = &opinfo;
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/* get entry */
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rc = bdb_dn2entry_w( be, ltid, dn, &e, NULL, 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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case DB_NOTFOUND:
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case 0:
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break;
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default:
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rc = LDAP_OTHER;
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*text = "internal error";
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goto done;
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}
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if( e == NULL ) {
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*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_subentries( e ) ) {
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/* entry is an alias, don't allow operation */
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*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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*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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*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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{
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Modifications ml;
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struct berval vals[2];
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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_bvalues = vals;
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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( be, conn, op, ltid,
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&ml, e, text, textbuf, textlen );
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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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*text = NULL;
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goto retry;
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case 0:
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break;
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default:
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rc = LDAP_OTHER;
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*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( be, ltid, 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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*text = "entry update failed";
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rc = LDAP_OTHER;
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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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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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replog( be, op, &e->e_name, &e->e_nname, &ml );
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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_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( 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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