mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
276 lines
6.3 KiB
C
276 lines
6.3 KiB
C
/* bind.c - ldbm backend bind and unbind routines */
|
|
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2003 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,
|
|
struct berval *dn,
|
|
struct berval *ndn,
|
|
int method,
|
|
struct berval *cred,
|
|
struct berval *edn
|
|
)
|
|
{
|
|
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
|
|
Entry *e;
|
|
Attribute *a;
|
|
int rc;
|
|
Entry *matched;
|
|
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
|
|
char krbname[MAX_K_NAME_SZ + 1];
|
|
AttributeDescription *krbattr = slap_schema.si_ad_krbName;
|
|
AUTH_DAT ad;
|
|
#endif
|
|
|
|
AttributeDescription *password = slap_schema.si_ad_userPassword;
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( BACK_LDBM, ENTRY,
|
|
"ldbm_back_bind: dn: %s.\n", dn->bv_val, 0, 0 );
|
|
#else
|
|
Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_bind: dn: %s\n", dn->bv_val, 0, 0);
|
|
#endif
|
|
|
|
dn = ndn;
|
|
|
|
/* grab giant lock for reading */
|
|
ldap_pvt_thread_rdwr_rlock(&li->li_giant_rwlock);
|
|
|
|
/* get entry with reader lock */
|
|
if ( (e = dn2entry_r( be, dn, &matched )) == NULL ) {
|
|
char *matched_dn = NULL;
|
|
BerVarray 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 = referral_rewrite( default_referral,
|
|
NULL, dn, LDAP_SCOPE_DEFAULT );
|
|
}
|
|
|
|
ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
|
|
|
|
/* allow noauth binds */
|
|
rc = 1;
|
|
if ( method == LDAP_AUTH_SIMPLE ) {
|
|
if ( be_isroot_pw( be, conn, dn, cred ) ) {
|
|
ber_dupbv( edn, 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 ( 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 ( refs ) ber_bvarray_free( refs );
|
|
if ( matched_dn ) free( matched_dn );
|
|
return( rc );
|
|
}
|
|
|
|
ber_dupbv( edn, &e->e_name );
|
|
|
|
/* check for deleted */
|
|
|
|
if ( is_entry_alias( e ) ) {
|
|
/* entry is an alias, don't allow bind */
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( BACK_LDBM, INFO,
|
|
"ldbm_back_bind: entry (%s) is an alias.\n", e->e_dn, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0,
|
|
0, 0 );
|
|
#endif
|
|
|
|
|
|
send_ldap_result( conn, op, LDAP_ALIAS_PROBLEM,
|
|
NULL, "entry is alias", NULL, NULL );
|
|
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( is_entry_referral( e ) ) {
|
|
/* entry is a referral, don't allow bind */
|
|
BerVarray refs = get_entry_referrals( be,
|
|
conn, op, e );
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( BACK_LDBM, INFO,
|
|
"ldbm_back_bind: entry(%s) is a referral.\n", e->e_dn, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
|
|
0, 0 );
|
|
#endif
|
|
|
|
|
|
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_bvarray_free( refs );
|
|
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
switch ( method ) {
|
|
case LDAP_AUTH_SIMPLE:
|
|
/* check for root dn/passwd */
|
|
if ( be_isroot_pw( be, conn, dn, cred ) ) {
|
|
/* front end will send result */
|
|
if(edn->bv_val != NULL) free( edn->bv_val );
|
|
ber_dupbv( edn, be_root_dn( be ) );
|
|
rc = 0;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( ! access_allowed( be, conn, op, e,
|
|
password, NULL, ACL_AUTH, NULL ) )
|
|
{
|
|
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
|
|
NULL, NULL, NULL, NULL );
|
|
rc = 1;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( (a = attr_find( e->e_attrs, password )) == 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( conn, 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 LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
|
|
case LDAP_AUTH_KRBV41:
|
|
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,
|
|
krbattr, NULL, ACL_AUTH, NULL ) )
|
|
{
|
|
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, krbattr )) == NULL ) {
|
|
/*
|
|
* no krbname values present: check against DN
|
|
*/
|
|
if ( strcasecmp( dn->bv_val, 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_desc, a->a_vals, &krbval ) != 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_UNWILLING_TO_PERFORM,
|
|
NULL, "Kerberos bind step 2 not supported",
|
|
NULL, NULL );
|
|
/* stop front end from sending result */
|
|
rc = LDAP_UNWILLING_TO_PERFORM;
|
|
goto return_results;
|
|
#endif
|
|
|
|
default:
|
|
send_ldap_result( conn, op, LDAP_STRONG_AUTH_NOT_SUPPORTED,
|
|
NULL, "authentication 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 );
|
|
ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
|
|
|
|
/* front end will send result on success (rc==0) */
|
|
return( rc );
|
|
}
|
|
|