/* bind.c - ldbm backend bind and unbind routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2005 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include "slap.h"
-#include "back-ldbm.h"
-#ifdef KERBEROS
-#include "krb.h"
-#endif
-
-#ifdef LDAP_CRYPT
-/* change for crypted passwords -- lukeh */
-#ifdef __NeXT__
-extern char *crypt (char *key, char *salt);
-#else
-#include <unistd.h>
-#endif
-#endif /* LDAP_CRYPT */
-
-#ifdef LDAP_SHA1
-#include <sha1.h>
-#endif /* LDAP_SHA1 */
-#ifdef LDAP_MD5
-#include <lutil_md5.h>
-#endif /* LDAP_MD5 */
-#include <lutil.h>
+#include <ac/krb.h>
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/unistd.h>
-extern Entry *dn2entry();
-extern Attribute *attr_find();
-
-#ifdef KERBEROS
-extern int krbv4_ldap_auth();
-#endif
-
-#ifdef LDAP_CRYPT
-pthread_mutex_t crypt_mutex;
-
-static int
-crypted_value_find(
- struct berval **vals,
- struct berval *v,
- int syntax,
- int normalize,
- struct berval *cred
-)
-{
- int i;
- for ( i = 0; vals[i] != NULL; i++ ) {
- if ( syntax != SYNTAX_BIN && strncasecmp( "{CRYPT}",
- vals[i]->bv_val, (sizeof("{CRYPT}") - 1 ) ) == 0 ) {
- char *userpassword = vals[i]->bv_val + sizeof("{CRYPT}") - 1;
- pthread_mutex_lock( &crypt_mutex );
- if (strcmp(userpassword, crypt(cred->bv_val,
- userpassword)) == 0) {
- pthread_mutex_unlock( &crypt_mutex );
- return ( 0 );
- }
- pthread_mutex_unlock( &crypt_mutex );
-#ifdef LDAP_MD5
- } else if ( syntax != SYNTAX_BIN && strncasecmp( "{MD5}",
- vals[i]->bv_val, (sizeof("{MD5}") - 1 ) ) == 0 ) {
- MD5_CTX MD5context;
- unsigned char MD5digest[20];
- char base64digest[29]; /* ceiling(sizeof(input)/3) * 4 + 1 */
-
- char *userpassword = vals[i]->bv_val + sizeof("{MD5}") - 1;
-
- MD5Init(&MD5context);
- MD5Update(&MD5context, cred->bv_val, strlen(cred->bv_val));
- MD5Final(MD5digest, &MD5context);
-
- if (b64_ntop(MD5digest, sizeof(MD5digest),
- base64digest, sizeof(base64digest)) < 0)
- {
- return ( 1 );
- }
-
- if (strcmp(userpassword, base64digest) == 0) {
- return ( 0 );
- }
-#endif /* LDAP_MD5 */
-#ifdef LDAP_SHA1
- } else if ( syntax != SYNTAX_BIN && strncasecmp( "{SHA}",
- vals[i]->bv_val, (sizeof("{SHA}") - 1 ) ) == 0 ) {
- SHA1_CTX SHA1context;
- unsigned char SHA1digest[20];
- char base64digest[29]; /* ceiling(sizeof(input)/3) * 4 + 1 */
-
- char *userpassword = vals[i]->bv_val + sizeof("{SHA}") - 1;
-
- SHA1Init(&SHA1context);
- SHA1Update(&SHA1context, cred->bv_val, strlen(cred->bv_val));
- SHA1Final(SHA1digest, &SHA1context);
-
- if (b64_ntop(SHA1digest, sizeof(SHA1digest),
- base64digest, sizeof(base64digest)) < 0)
- {
- return ( 1 );
- }
-
- if (strcmp(userpassword, base64digest) == 0) {
- return ( 0 );
- }
-#endif /* LDAP_SHA1 */
- } else {
- if ( value_cmp( vals[i], v, syntax, normalize ) == 0 ) {
- return( 0 );
- }
- }
- }
-
- return( 1 );
-}
-#endif /* LDAP_CRYPT */
+#include "slap.h"
+#include "back-ldbm.h"
+#include "proto-back-ldbm.h"
int
ldbm_back_bind(
- Backend *be,
- Connection *conn,
Operation *op,
- char *dn,
- int method,
- struct berval *cred
-)
+ SlapReply *rs )
{
- struct ldbminfo *li = (struct ldbminfo *) be->be_private;
+ struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
Entry *e;
Attribute *a;
int rc;
- char *matched = NULL;
-#ifdef KERBEROS
+ 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
- if ( (e = dn2entry( be, dn, &matched )) == NULL ) {
- /* allow noauth binds */
- if ( method == LDAP_AUTH_SIMPLE && cred->bv_len == 0 ) {
- /*
- * bind successful, but return 1 so we don't
- * authorize based on noauth credentials
- */
- send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
- rc = 1;
- } else if ( be_isroot_pw( be, dn, cred ) ) {
- /* front end will send result */
- rc = 0;
- } else {
- send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
- matched, NULL );
- rc = 1;
- }
- if ( matched != NULL ) {
- free( matched );
- }
- return( rc );
+ AttributeDescription *password = slap_schema.si_ad_userPassword;
+
+ Debug(LDAP_DEBUG_ARGS,
+ "==> ldbm_back_bind: dn: %s\n", op->o_req_dn.bv_val, 0, 0);
+
+ if ( op->oq_bind.rb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op ) ) {
+ ber_dupbv( &op->oq_bind.rb_edn, be_root_dn( op->o_bd ) );
+ /* front end will send result */
+ return LDAP_SUCCESS;
}
- switch ( method ) {
- case LDAP_AUTH_SIMPLE:
- if ( cred->bv_len == 0 ) {
- send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
- return( 1 );
- } else if ( be_isroot_pw( be, dn, cred ) ) {
- /* front end will send result */
- return( 0 );
- }
+ /* grab giant lock for reading */
+ ldap_pvt_thread_rdwr_rlock(&li->li_giant_rwlock);
- if ( (a = attr_find( e->e_attrs, "userpassword" )) == NULL ) {
- if ( be_isroot_pw( be, dn, cred ) ) {
- /* front end will send result */
- return( 0 );
- }
- send_ldap_result( conn, op, LDAP_INAPPROPRIATE_AUTH,
- NULL, NULL );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
+ /* get entry with reader lock */
+ if ( (e = dn2entry_r( op->o_bd, &op->o_req_ndn, &matched )) == NULL ) {
+ if( matched != NULL ) {
+ cache_return_entry_r( &li->li_cache, matched );
}
+ ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
-#ifdef LDAP_CRYPT
- if ( crypted_value_find( a->a_vals, cred, a->a_syntax, 0, cred ) != 0 )
+ /* allow noauth binds */
+ rc = 1;
+ rs->sr_err = LDAP_INVALID_CREDENTIALS;
+ send_ldap_result( op, rs );
+ return rs->sr_err;
+ }
+
+ /* check for deleted */
+#ifdef LDBM_SUBENTRIES
+ if ( is_entry_subentry( e ) ) {
+ /* entry is an subentry, don't allow bind */
+ Debug( LDAP_DEBUG_TRACE,
+ "entry is subentry\n", 0, 0, 0 );
+ rc = LDAP_INVALID_CREDENTIALS;
+ goto return_results;
+ }
+#endif
+
+ if ( is_entry_alias( e ) ) {
+ /* entry is an alias, don't allow bind */
+ Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0, 0, 0 );
+
+#if 1
+ rc = LDAP_INVALID_CREDENTIALS;
#else
- if ( value_find( a->a_vals, cred, a->a_syntax, 0 ) != 0 )
+ rs->sr_text = "entry is alias";
+ rc = LDAP_ALIAS_PROBLEM;
#endif
-{
- if ( be_isroot_pw( be, dn, cred ) ) {
- /* front end will send result */
- return( 0 );
- }
- send_ldap_result( conn, op, LDAP_INVALID_CREDENTIALS,
- NULL, NULL );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
+ goto return_results;
+ }
+
+ if ( is_entry_referral( e ) ) {
+ /* entry is a referral, don't allow bind */
+ Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 );
+
+ rc = LDAP_INVALID_CREDENTIALS;
+ goto return_results;
+ }
+
+ switch ( op->oq_bind.rb_method ) {
+ case LDAP_AUTH_SIMPLE:
+ if ( (a = attr_find( e->e_attrs, password )) == NULL ) {
+ /* stop front end from sending result */
+ rc = LDAP_INVALID_CREDENTIALS;
+ goto return_results;
}
+
+ if ( slap_passwd_check( op, e, a, &op->oq_bind.rb_cred,
+ &rs->sr_text ) != 0 )
+ {
+ /* failure; stop front end from sending result */
+ rc = LDAP_INVALID_CREDENTIALS;
+ goto return_results;
+ }
+
+ rc = 0;
break;
-#ifdef KERBEROS
+#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 );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
+ if ( krbv4_ldap_auth( op->o_bd, &op->oq_bind.rb_cred, &ad )
+ != LDAP_SUCCESS )
+ {
+ rc = LDAP_INVALID_CREDENTIALS;
+ goto return_results;
+ }
+
+ if ( ! access_allowed( op, e,
+ krbattr, NULL, ACL_AUTH, NULL ) )
+ {
+ rc = LDAP_INSUFFICIENT_ACCESS;
+ 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 ) {
+
+ if ( (a = attr_find( e->e_attrs, krbattr )) == NULL ) {
/*
- * no krbName values present: check against DN
+ * no krbname values present: check against DN
*/
- if ( strcasecmp( dn, krbname ) == 0 ) {
+ if ( strcasecmp( op->o_req_dn.bv_val, krbname ) == 0 ) {
+ rc = 0;
break;
}
- send_ldap_result( conn, op, LDAP_INAPPROPRIATE_AUTH,
- NULL, NULL );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
- } else { /* look for krbName match */
+ rc = LDAP_INAPPROPRIATE_AUTH;
+ 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 );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
+ if ( value_find( a->a_desc, a->a_vals, &krbval ) != 0 ) {
+ rc = LDAP_INVALID_CREDENTIALS;
+ goto return_results;
}
}
+ rc = 0;
break;
-
- case LDAP_AUTH_KRBV42:
- send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
#endif
default:
- send_ldap_result( conn, op, LDAP_STRONG_AUTH_NOT_SUPPORTED,
- NULL, "auth method not supported" );
- cache_return_entry( &li->li_cache, e );
- return( 1 );
+ assert( 0 ); /* should not be reachable */
+ rs->sr_text = "authentication method not supported";
+ rc = LDAP_STRONG_AUTH_NOT_SUPPORTED;
+ goto return_results;
}
- cache_return_entry( &li->li_cache, e );
+ ber_dupbv( &op->oq_bind.rb_edn, &e->e_name );
+
+return_results:;
+ /* free entry and reader lock */
+ cache_return_entry_r( &li->li_cache, e );
+ ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
+
+ if ( rc ) {
+ rs->sr_err = rc;
+ send_ldap_result( op, rs );
+ if ( rs->sr_ref ) {
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ }
+ }
- /* success: front end will send result */
- return( 0 );
+ /* front end will send result on success (rc==0) */
+ return( rc );
}
+
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