mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
356 lines
7.2 KiB
C
356 lines
7.2 KiB
C
/* bind.c - ldbm backend bind and unbind routines */
|
|
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/krb.h>
|
|
#include <ac/socket.h>
|
|
#include <ac/string.h>
|
|
#include <ac/unistd.h>
|
|
|
|
#include "slap.h"
|
|
|
|
#include <lber_pvt.h>
|
|
#include <lutil.h>
|
|
|
|
int passwd_extop(
|
|
Connection *conn, Operation *op,
|
|
const char *reqoid,
|
|
struct berval *reqdata,
|
|
char **rspoid,
|
|
struct berval **rspdata,
|
|
LDAPControl ***rspctrls,
|
|
const char **text,
|
|
BerVarray *refs )
|
|
{
|
|
Backend *be;
|
|
int rc;
|
|
|
|
assert( reqoid != NULL );
|
|
assert( strcmp( LDAP_EXOP_MODIFY_PASSWD, reqoid ) == 0 );
|
|
|
|
if( op->o_dn.bv_len == 0 ) {
|
|
*text = "only authenticated users may change passwords";
|
|
return LDAP_STRONG_AUTH_REQUIRED;
|
|
}
|
|
|
|
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
|
|
be = conn->c_authz_backend;
|
|
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
|
|
|
|
if( be && !be->be_extended ) {
|
|
*text = "operation not supported for current user";
|
|
return LDAP_UNWILLING_TO_PERFORM;
|
|
}
|
|
|
|
{
|
|
struct berval passwd = BER_BVC( LDAP_EXOP_MODIFY_PASSWD );
|
|
rc = backend_check_restrictions( be, conn, op, &passwd, text );
|
|
}
|
|
|
|
if( rc != LDAP_SUCCESS ) {
|
|
return rc;
|
|
}
|
|
|
|
if( be == NULL ) {
|
|
#ifdef HAVE_CYRUS_SASL
|
|
rc = slap_sasl_setpass( conn, op,
|
|
reqoid, reqdata,
|
|
rspoid, rspdata, rspctrls,
|
|
text );
|
|
#else
|
|
*text = "no authz backend";
|
|
rc = LDAP_OTHER;
|
|
#endif
|
|
|
|
} else if( be->be_update_ndn.bv_len ) {
|
|
/* we SHOULD return a referral in this case */
|
|
*refs = referral_rewrite( be->be_update_refs,
|
|
NULL, NULL, LDAP_SCOPE_DEFAULT );
|
|
rc = LDAP_REFERRAL;
|
|
|
|
} else {
|
|
rc = be->be_extended(
|
|
be, conn, op,
|
|
reqoid, reqdata,
|
|
rspoid, rspdata, rspctrls,
|
|
text, refs );
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
int slap_passwd_parse( struct berval *reqdata,
|
|
struct berval *id,
|
|
struct berval *oldpass,
|
|
struct berval *newpass,
|
|
const char **text )
|
|
{
|
|
int rc = LDAP_SUCCESS;
|
|
ber_tag_t tag;
|
|
ber_len_t len;
|
|
char berbuf[256];
|
|
BerElement *ber = (BerElement *)berbuf;
|
|
|
|
if( reqdata == NULL ) {
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
if( reqdata->bv_len == 0 ) {
|
|
*text = "empty request data field";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
/* ber_init2 uses reqdata directly, doesn't allocate new buffers */
|
|
ber_init2( ber, reqdata, 0 );
|
|
|
|
tag = ber_scanf( ber, "{" /*}*/ );
|
|
|
|
if( tag != LBER_ERROR ) {
|
|
tag = ber_peek_tag( ber, &len );
|
|
}
|
|
|
|
if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_ID ) {
|
|
if( id == NULL ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: ID not allowed.\n"));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID not allowed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
*text = "user must change own password";
|
|
rc = LDAP_UNWILLING_TO_PERFORM;
|
|
goto done;
|
|
}
|
|
|
|
tag = ber_scanf( ber, "m", id );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: ID parse failed.\n"));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID parse failed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
goto decoding_error;
|
|
}
|
|
|
|
tag = ber_peek_tag( ber, &len);
|
|
}
|
|
|
|
if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_OLD ) {
|
|
if( oldpass == NULL ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: OLD not allowed.\n" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD not allowed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
*text = "use bind to verify old password";
|
|
rc = LDAP_UNWILLING_TO_PERFORM;
|
|
goto done;
|
|
}
|
|
|
|
tag = ber_scanf( ber, "m", oldpass );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: ID parse failed.\n" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID parse failed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
goto decoding_error;
|
|
}
|
|
|
|
tag = ber_peek_tag( ber, &len );
|
|
}
|
|
|
|
if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_NEW ) {
|
|
if( newpass == NULL ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: NEW not allowed.\n" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: NEW not allowed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
*text = "user specified passwords disallowed";
|
|
rc = LDAP_UNWILLING_TO_PERFORM;
|
|
goto done;
|
|
}
|
|
|
|
tag = ber_scanf( ber, "m", newpass );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: OLD parse failed.\n"));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD parse failed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
goto decoding_error;
|
|
}
|
|
|
|
tag = ber_peek_tag( ber, &len );
|
|
}
|
|
|
|
if( len != 0 ) {
|
|
decoding_error:
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
|
|
"slap_passwd_parse: decoding error, len=%ld\n", (long)len ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"slap_passwd_parse: decoding error, len=%ld\n",
|
|
(long) len, 0, 0 );
|
|
#endif
|
|
|
|
*text = "data decoding error";
|
|
rc = LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
done:
|
|
return rc;
|
|
}
|
|
|
|
struct berval * slap_passwd_return(
|
|
struct berval *cred )
|
|
{
|
|
int rc;
|
|
struct berval *bv = NULL;
|
|
char berbuf[256];
|
|
/* opaque structure, size unknown but smaller than berbuf */
|
|
BerElement *ber = (BerElement *)berbuf;
|
|
|
|
assert( cred != NULL );
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
|
|
"slap_passwd_return: %ld\n",(long)cred->bv_len ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_return: %ld\n",
|
|
(long) cred->bv_len, 0, 0 );
|
|
#endif
|
|
|
|
ber_init_w_nullc( ber, LBER_USE_DER );
|
|
|
|
rc = ber_printf( ber, "{tON}",
|
|
LDAP_TAG_EXOP_MODIFY_PASSWD_GEN, cred );
|
|
|
|
if( rc >= 0 ) {
|
|
(void) ber_flatten( ber, &bv );
|
|
}
|
|
|
|
ber_free_buf( ber );
|
|
|
|
return bv;
|
|
}
|
|
|
|
int
|
|
slap_passwd_check(
|
|
Connection *conn,
|
|
Attribute *a,
|
|
struct berval *cred )
|
|
{
|
|
int result = 1;
|
|
struct berval *bv;
|
|
|
|
#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
|
|
ldap_pvt_thread_mutex_lock( &passwd_mutex );
|
|
#ifdef SLAPD_SPASSWD
|
|
lutil_passwd_sasl_conn = conn->c_sasl_context;
|
|
#endif
|
|
#endif
|
|
|
|
for ( bv = a->a_vals; bv->bv_val != NULL; bv++ ) {
|
|
if( !lutil_passwd( bv, cred, NULL ) ) {
|
|
result = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
|
|
#ifdef SLAPD_SPASSWD
|
|
lutil_passwd_sasl_conn = NULL;
|
|
#endif
|
|
ldap_pvt_thread_mutex_unlock( &passwd_mutex );
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
slap_passwd_generate( struct berval *pass )
|
|
{
|
|
struct berval *tmp;
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
|
|
"slap_passwd_generate: begin\n" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "slap_passwd_generate\n", 0, 0, 0 );
|
|
#endif
|
|
/*
|
|
* generate passwords of only 8 characters as some getpass(3)
|
|
* implementations truncate at 8 characters.
|
|
*/
|
|
tmp = lutil_passwd_generate( 8 );
|
|
if (tmp) {
|
|
*pass = *tmp;
|
|
free(tmp);
|
|
} else {
|
|
pass->bv_val = NULL;
|
|
pass->bv_len = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
slap_passwd_hash(
|
|
struct berval * cred,
|
|
struct berval * new )
|
|
{
|
|
struct berval *tmp;
|
|
#ifdef LUTIL_SHA1_BYTES
|
|
char* hash = default_passwd_hash ? default_passwd_hash : "{SSHA}";
|
|
#else
|
|
char* hash = default_passwd_hash ? default_passwd_hash : "{SMD5}";
|
|
#endif
|
|
|
|
|
|
#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
|
|
ldap_pvt_thread_mutex_lock( &passwd_mutex );
|
|
#endif
|
|
|
|
tmp = lutil_passwd_hash( cred , hash );
|
|
|
|
#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
|
|
ldap_pvt_thread_mutex_unlock( &passwd_mutex );
|
|
#endif
|
|
|
|
if( tmp == NULL ) {
|
|
new->bv_len = 0;
|
|
new->bv_val = NULL;
|
|
}
|
|
|
|
*new = *tmp;
|
|
free( tmp );
|
|
return;
|
|
}
|