--- /dev/null
+/* bind.c - bdb backend bind routine */
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/krb.h>
+#include <ac/string.h>
+#include <ac/unistd.h>
+
+#include "back-bdb.h"
+
+int
+bdb_bind(
+ Backend *be,
+ Connection *conn,
+ Operation *op,
+ const char *dn,
+ const char *ndn,
+ int method,
+ struct berval *cred,
+ char** edn
+)
+{
+ struct bdb_info *bdb = (struct bdb_info *) 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;
+
+ Debug( LDAP_DEBUG_ARGS, "==> bdb_bind: dn: %s\n", dn, 0, 0);
+
+ *edn = NULL;
+
+ /* fetch entry */
+ rc = dn2entry_r( be, NULL, ndn, &e, &matched );
+
+ switch(rc) {
+ case DB_NOTFOUND:
+ case 0:
+ break;
+ default:
+ send_ldap_result( conn, op, rc=LDAP_OTHER,
+ NULL, "internal error", NULL, NULL );
+ return rc;
+ }
+
+ /* get entry with reader lock */
+ if ( e == 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;
+
+ bdb_entry_return( be, matched );
+ } else {
+ refs = default_referral;
+ }
+
+ /* allow noauth binds */
+ rc = 1;
+ if ( method == LDAP_AUTH_SIMPLE ) {
+ if ( be_isroot_pw( be, conn, ndn, cred ) ) {
+ *edn = ch_strdup( be_root_dn( be ) );
+ rc = LDAP_SUCCESS; /* front end will send result */
+
+ } else if ( refs != NULL ) {
+ send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+ matched_dn, NULL, refs, NULL );
+
+ } else {
+ send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
+ NULL, NULL, NULL, NULL );
+ }
+
+ } else if ( refs != NULL ) {
+ send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+ matched_dn, NULL, refs, NULL );
+
+ } else {
+ send_ldap_result( conn, op, rc = 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 ( 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, rc = LDAP_ALIAS_PROBLEM,
+ NULL, "entry is alias", NULL, NULL );
+
+ goto done;
+ }
+
+ 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, rc = LDAP_REFERRAL,
+ e->e_dn, NULL, refs, NULL );
+
+ } else {
+ send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
+ NULL, NULL, NULL, NULL );
+ }
+
+ ber_bvecfree( refs );
+
+ goto done;
+ }
+
+ 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 != NULL) free( *edn );
+ *edn = ch_strdup( be_root_dn( be ) );
+ rc = LDAP_SUCCESS;
+ goto done;
+ }
+
+ if ( ! access_allowed( be, conn, op, e,
+ password, NULL, ACL_AUTH ) )
+ {
+ send_ldap_result( conn, op, rc = LDAP_INSUFFICIENT_ACCESS,
+ NULL, NULL, NULL, NULL );
+ goto done;
+ }
+
+ if ( (a = attr_find( e->e_attrs, password )) == NULL ) {
+ send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_AUTH,
+ NULL, NULL, NULL, NULL );
+ goto done;
+ }
+
+ if ( slap_passwd_check( conn, a, cred ) != 0 ) {
+ send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
+ NULL, NULL, NULL, NULL );
+ goto done;
+ }
+
+ 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, rc = LDAP_INVALID_CREDENTIALS,
+ NULL, NULL, NULL, NULL );
+ goto done;
+ }
+
+ if ( ! access_allowed( be, conn, op, e,
+ krbattr, NULL, ACL_AUTH ) )
+ {
+ send_ldap_result( conn, op, rc = LDAP_INSUFFICIENT_ACCESS,
+ NULL, NULL, NULL, NULL );
+ goto done;
+ }
+
+ 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, krbname ) == 0 ) {
+ rc = 0;
+ break;
+ }
+ send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_AUTH,
+ NULL, NULL, NULL, NULL );
+ goto done;
+
+ } 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,
+ rc = LDAP_INVALID_CREDENTIALS,
+ NULL, NULL, NULL, NULL );
+ goto done;
+ }
+ }
+ rc = 0;
+ break;
+
+ case LDAP_AUTH_KRBV42:
+ send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+ NULL, "Kerberos bind step 2 not supported",
+ NULL, NULL );
+ goto done;
+#endif
+
+ default:
+ send_ldap_result( conn, op, rc = LDAP_STRONG_AUTH_NOT_SUPPORTED,
+ NULL, "authentication method not supported", NULL, NULL );
+ goto done;
+ }
+
+done:
+ /* free entry and reader lock */
+ bdb_entry_return( be, e );
+
+ /* front end with send result on success (rc==0) */
+ return rc;
+}
\ No newline at end of file
projects / openldap / commitdiff