mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
298 lines
6.5 KiB
C
298 lines
6.5 KiB
C
/* bind.c - ldbm backend bind and unbind routines */
|
|
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-1999 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 "back-ldbm.h"
|
|
#include "proto-back-ldbm.h"
|
|
|
|
int
|
|
ldbm_back_bind(
|
|
Backend *be,
|
|
Connection *conn,
|
|
Operation *op,
|
|
char *dn,
|
|
char *ndn,
|
|
int method,
|
|
char *mech,
|
|
struct berval *cred,
|
|
char** edn
|
|
)
|
|
{
|
|
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
|
|
Entry *e;
|
|
Attribute *a;
|
|
int rc;
|
|
Entry *matched;
|
|
#ifdef HAVE_KERBEROS
|
|
char krbname[MAX_K_NAME_SZ + 1];
|
|
AUTH_DAT ad;
|
|
#endif
|
|
|
|
Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_bind: dn: %s\n", dn, 0, 0);
|
|
|
|
*edn = NULL;
|
|
dn = ndn;
|
|
|
|
/* get entry with reader lock */
|
|
if ( (e = dn2entry_r( be, dn, &matched )) == NULL ) {
|
|
char *matched_dn = NULL;
|
|
struct berval **refs = NULL;
|
|
|
|
if( matched != NULL ) {
|
|
matched_dn = ch_strdup( matched->e_dn );
|
|
|
|
refs = is_entry_referral( matched )
|
|
? get_entry_referrals( be, conn, op, matched )
|
|
: NULL;
|
|
|
|
cache_return_entry_r( &li->li_cache, matched );
|
|
} else {
|
|
refs = default_referral;
|
|
}
|
|
|
|
/* allow noauth binds */
|
|
rc = 1;
|
|
if ( method == LDAP_AUTH_SIMPLE ) {
|
|
if( cred->bv_len == 0 ) {
|
|
/* SUCCESS */
|
|
send_ldap_result( conn, op, LDAP_SUCCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
|
|
} else if ( be_isroot_pw( be, dn, cred ) ) {
|
|
*edn = ch_strdup( be_root_dn( be ) );
|
|
rc = 0; /* front end will send result */
|
|
|
|
} else if ( refs != NULL ) {
|
|
send_ldap_result( conn, op, LDAP_REFERRAL,
|
|
matched_dn, NULL, refs, NULL );
|
|
|
|
} else {
|
|
send_ldap_result( conn, op, LDAP_INVALID_CREDENTIALS,
|
|
NULL, NULL, NULL, NULL );
|
|
}
|
|
|
|
} else if ( method == LDAP_AUTH_SASL ) {
|
|
if( mech != NULL && strcasecmp(mech,"DIGEST-MD5") == 0 ) {
|
|
/* insert DIGEST calls here */
|
|
send_ldap_result( conn, op, LDAP_AUTH_METHOD_NOT_SUPPORTED,
|
|
NULL, NULL, NULL, NULL );
|
|
|
|
} else {
|
|
send_ldap_result( conn, op, LDAP_AUTH_METHOD_NOT_SUPPORTED,
|
|
NULL, NULL, NULL, NULL );
|
|
}
|
|
|
|
} else if ( refs != NULL ) {
|
|
send_ldap_result( conn, op, LDAP_REFERRAL,
|
|
matched_dn, NULL, refs, NULL );
|
|
|
|
} else {
|
|
send_ldap_result( conn, op, LDAP_INVALID_CREDENTIALS,
|
|
NULL, NULL, NULL, NULL );
|
|
}
|
|
|
|
if ( matched != NULL ) {
|
|
ber_bvecfree( refs );
|
|
free( matched_dn );
|
|
}
|
|
return( rc );
|
|
}
|
|
|
|
*edn = ch_strdup( e->e_dn );
|
|
|
|
/* check for deleted */
|
|
|
|
if ( ! access_allowed( be, conn, op, e,
|
|
"entry", NULL, ACL_AUTH ) )
|
|
{
|
|
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( is_entry_alias( e ) ) {
|
|
/* entry is an alias, don't allow bind */
|
|
Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0,
|
|
0, 0 );
|
|
|
|
send_ldap_result( conn, op, LDAP_ALIAS_PROBLEM,
|
|
NULL, NULL, NULL, NULL );
|
|
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( is_entry_referral( e ) ) {
|
|
/* entry is a referral, don't allow bind */
|
|
struct berval **refs = get_entry_referrals( be,
|
|
conn, op, e );
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
|
|
0, 0 );
|
|
|
|
if( refs != NULL ) {
|
|
send_ldap_result( conn, op, LDAP_REFERRAL,
|
|
e->e_dn, NULL, refs, NULL );
|
|
|
|
} else {
|
|
send_ldap_result( conn, op, LDAP_INVALID_CREDENTIALS,
|
|
NULL, NULL, NULL, NULL );
|
|
}
|
|
|
|
ber_bvecfree( refs );
|
|
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
switch ( method ) {
|
|
case LDAP_AUTH_SIMPLE:
|
|
if ( cred->bv_len == 0 ) {
|
|
send_ldap_result( conn, op, LDAP_SUCCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
|
|
/* stop front end from sending result */
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
/* check for root dn/passwd */
|
|
if ( be_isroot_pw( be, dn, cred ) ) {
|
|
/* front end will send result */
|
|
if(*edn != NULL) free( *edn );
|
|
*edn = ch_strdup( be_root_dn( be ) );
|
|
rc = 0;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( ! access_allowed( be, conn, op, e,
|
|
"userpassword", NULL, ACL_AUTH ) )
|
|
{
|
|
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( (a = attr_find( e->e_attrs, "userpassword" )) == NULL ) {
|
|
send_ldap_result( conn, op, LDAP_INAPPROPRIATE_AUTH,
|
|
NULL, NULL, NULL, NULL );
|
|
|
|
/* stop front end from sending result */
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( slap_passwd_check( a, cred ) != 0 ) {
|
|
send_ldap_result( conn, op, LDAP_INVALID_CREDENTIALS,
|
|
NULL, NULL, NULL, NULL );
|
|
/* stop front end from sending result */
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
rc = 0;
|
|
break;
|
|
|
|
#ifdef HAVE_KERBEROS
|
|
case LDAP_AUTH_KRBV41:
|
|
if ( ! access_allowed( be, conn, op, e,
|
|
"krbname", NULL, ACL_AUTH ) )
|
|
{
|
|
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( krbv4_ldap_auth( be, cred, &ad ) != LDAP_SUCCESS ) {
|
|
send_ldap_result( conn, op, LDAP_INVALID_CREDENTIALS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( ! access_allowed( be, conn, op, e,
|
|
"krbname", NULL, ACL_AUTH ) )
|
|
{
|
|
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
sprintf( krbname, "%s%s%s@%s", ad.pname, *ad.pinst ? "."
|
|
: "", ad.pinst, ad.prealm );
|
|
|
|
|
|
if ( (a = attr_find( e->e_attrs, "krbname" )) == NULL ) {
|
|
/*
|
|
* no krbName values present: check against DN
|
|
*/
|
|
if ( strcasecmp( dn, krbname ) == 0 ) {
|
|
rc = 0;
|
|
break;
|
|
}
|
|
send_ldap_result( conn, op, LDAP_INAPPROPRIATE_AUTH,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
|
|
} else { /* look for krbName match */
|
|
struct berval krbval;
|
|
|
|
krbval.bv_val = krbname;
|
|
krbval.bv_len = strlen( krbname );
|
|
|
|
if ( value_find( a->a_vals, &krbval, a->a_syntax, 3 ) != 0 ) {
|
|
send_ldap_result( conn, op,
|
|
LDAP_INVALID_CREDENTIALS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
}
|
|
rc = 0;
|
|
break;
|
|
|
|
case LDAP_AUTH_KRBV42:
|
|
send_ldap_result( conn, op, LDAP_SUCCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
/* stop front end from sending result */
|
|
rc = 1;
|
|
goto return_results;
|
|
#endif
|
|
|
|
case LDAP_AUTH_SASL:
|
|
/* insert SASL code here */
|
|
|
|
default:
|
|
send_ldap_result( conn, op, LDAP_STRONG_AUTH_NOT_SUPPORTED,
|
|
NULL, "auth method not supported", NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
return_results:;
|
|
/* free entry and reader lock */
|
|
cache_return_entry_r( &li->li_cache, e );
|
|
|
|
/* front end with send result on success (rc==0) */
|
|
return( rc );
|
|
}
|
|
|