]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/sasl.c
Updated for schemas.
[openldap] / servers / slapd / sasl.c
index 5ebfe68d357b35160b5f8e6712ac2146df9069a8..b2e40a05b822ad8ca92e2b684040bdce4dd57931 100644 (file)
@@ -1,3 +1,9 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
 #include "portable.h"
 
 #include <ac/stdlib.h>
 #include <ldap_log.h>
 
 char **supportedSASLMechanisms = NULL;
+char *sasl_host = NULL;
 
 #ifdef HAVE_CYRUS_SASL
-static sasl_callback_t callbacks[] = {
-       { SASL_CB_LIST_END, NULL, NULL }
-};
+
+#ifdef SLAPD_SPASSWD
+#include <lutil.h>
+#endif
+
+static void *slap_sasl_mutex_new(void)
+{
+       ldap_pvt_thread_mutex_t *mutex;
+
+       mutex = (ldap_pvt_thread_mutex_t *) ch_malloc( sizeof(ldap_pvt_thread_mutex_t) );
+       if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
+               return mutex;
+       }
+       return NULL;
+}
+
+static int slap_sasl_mutex_lock(void *mutex)
+{
+       return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex );
+}
+
+static int slap_sasl_mutex_unlock(void *mutex)
+{
+       return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex );
+}
+
+static void slap_sasl_mutex_dispose(void *mutex)
+{
+       (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
+       free( mutex );
+}
+
+static int
+slap_sasl_err2ldap( int saslerr )
+{
+       int rc;
+
+       switch (saslerr) {
+               case SASL_CONTINUE:
+                       rc = LDAP_SASL_BIND_IN_PROGRESS;
+                       break;
+               case SASL_OK:
+                       rc = LDAP_SUCCESS;
+                       break;
+               case SASL_FAIL:
+                       rc = LDAP_OTHER;
+                       break;
+               case SASL_NOMEM:
+                       rc = LDAP_OTHER;
+                       break;
+               case SASL_NOMECH:
+                       rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
+                       break;
+               case SASL_BADAUTH:
+                       rc = LDAP_INVALID_CREDENTIALS;
+                       break;
+               case SASL_NOAUTHZ:
+                       rc = LDAP_INSUFFICIENT_ACCESS;
+                       break;
+               case SASL_TOOWEAK:
+               case SASL_ENCRYPT:
+                       rc = LDAP_INAPPROPRIATE_AUTH;
+                       break;
+               default:
+                       rc = LDAP_OTHER;
+                       break;
+       }
+
+       return rc;
+}
+
 
 int sasl_init( void )
 {
@@ -22,7 +97,15 @@ int sasl_init( void )
        char *mechs;
        sasl_conn_t *server = NULL;
 
-       rc = sasl_server_init( callbacks, "slapd" );
+       sasl_set_alloc( ch_malloc, ch_calloc, ch_realloc, ch_free ); 
+
+       sasl_set_mutex(
+               slap_sasl_mutex_new,
+               slap_sasl_mutex_lock,
+               slap_sasl_mutex_unlock,
+               slap_sasl_mutex_dispose );
+
+       rc = sasl_server_init( NULL, "slapd" );
 
        if( rc != SASL_OK ) {
                Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
@@ -30,7 +113,16 @@ int sasl_init( void )
                return -1;
        }
 
-       rc = sasl_server_new( "ldap", NULL, NULL, NULL,
+       if( sasl_host == NULL ) {
+               static char hostname[MAXHOSTNAMELEN+1];
+
+               if( gethostname( hostname, MAXHOSTNAMELEN ) == 0 ) {
+                       hostname[MAXHOSTNAMELEN] = '\0';
+                       sasl_host = hostname;
+               }
+       }
+
+       rc = sasl_server_new( "ldap", sasl_host, NULL, NULL,
                SASL_SECURITY_LAYER, 
                &server );
 
@@ -71,19 +163,170 @@ int sasl_init( void )
                mechs, 0, 0 );
 
        supportedSASLMechanisms = str2charray( mechs, "," );
+
+#ifdef SLAPD_SPASSWD
+       lutil_passwd_sasl_conn = server;
+#else
        sasl_dispose( &server );
+#endif
 
        return 0;
 }
 
 int sasl_destroy( void )
 {
+#ifdef SLAPD_SPASSWD
+       sasl_dispose( &lutil_passwd_sasl_conn );
+#endif
        charray_free( supportedSASLMechanisms );
        return 0;
 }
 
+#ifdef HAVE_CYRUS_SASL
+int sasl_bind(
+    Connection          *conn,
+    Operation           *op,  
+    const char          *dn,  
+    const char          *ndn,
+    const char          *mech,
+    struct berval       *cred,
+       char                            **edn )
+{
+       struct berval response;
+       const char *errstr;
+       int sc;
+       int rc = 1;
+
+       Debug(LDAP_DEBUG_ARGS,
+               "==> sasl_bind: dn=\"%s\" mech=%s cred->bv_len=%d\n",
+               dn, mech, cred ? cred->bv_len : 0 );
+
+       if ( conn->c_sasl_bind_context == NULL ) {
+               sasl_callback_t callbacks[4];
+               int cbnum = 0;
+
+#if 0
+               if (be->be_sasl_authorize) {
+                       callbacks[cbnum].id = SASL_CB_PROXY_POLICY;
+                       callbacks[cbnum].proc = be->be_sasl_authorize;
+                       callbacks[cbnum].context = be;
+                       ++cbnum;
+               }
+
+               if (be->be_sasl_getsecret) {
+                       callbacks[cbnum].id = SASL_CB_SERVER_GETSECRET;
+                       callbacks[cbnum].proc = be->be_sasl_getsecret;
+                       callbacks[cbnum].context = be;
+                       ++cbnum;
+               }
+
+               if (be->be_sasl_putsecret) {
+                       callbacks[cbnum].id = SASL_CB_SERVER_PUTSECRET;
+                       callbacks[cbnum].proc = be->be_sasl_putsecret;
+                       callbacks[cbnum].context = be;
+                       ++cbnum;
+               }
+#endif
+
+               callbacks[cbnum].id = SASL_CB_LIST_END;
+               callbacks[cbnum].proc = NULL;
+               callbacks[cbnum].context = NULL;
+
+               /* create new SASL context */
+               sc = sasl_server_new( "ldap", sasl_host, global_realm,
+                       callbacks, SASL_SECURITY_LAYER, &conn->c_sasl_bind_context );
+
+               if( sc != SASL_OK ) {
+                       send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
+                               NULL, NULL, NULL, NULL );
+               } else {
+                       unsigned reslen;
+                       conn->c_authmech = ch_strdup( mech );
+
+                       sc = sasl_server_start( conn->c_sasl_bind_context, conn->c_authmech,
+                               cred->bv_val, cred->bv_len,
+                               (char **)&response.bv_val, &reslen, &errstr );
+
+                       response.bv_len = reslen;
+                       
+                       if ( (sc != SASL_OK) && (sc != SASL_CONTINUE) ) {
+                               send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
+                                       NULL, errstr, NULL, NULL );
+                       }
+               }
+       } else {
+               unsigned reslen;
+               sc = sasl_server_step( conn->c_sasl_bind_context, cred->bv_val, cred->bv_len,
+                       (char **)&response.bv_val, &reslen, &errstr );
+
+               response.bv_len = reslen;
+       
+               if ( (sc != SASL_OK) && (sc != SASL_CONTINUE) ) {
+                       send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
+                               NULL, errstr, NULL, NULL );
+               }
+       }
+
+       if ( sc == SASL_OK ) {
+               char *authzid;
+
+               if ( ( sc = sasl_getprop( conn->c_sasl_bind_context, SASL_USERNAME,
+                       (void **)&authzid ) ) != SASL_OK ) {
+                       send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
+                               NULL, NULL, NULL, NULL );
+
+               } else {
+                       Debug(LDAP_DEBUG_TRACE, "<== sasl_bind: username=%s\n",
+                               authzid, 0, 0);
+
+                       if( strncasecmp( authzid, "anonymous", sizeof("anonyous")-1 ) &&
+                               ( ( authzid[sizeof("anonymous")] == '\0' ) ||
+                               ( authzid[sizeof("anonymous")] == '@' ) ) )
+                       {
+                               *edn = ch_malloc( sizeof( "authzid=" ) + strlen( authzid ) );
+                               strcpy( *edn, "authzid=" );
+                               strcat( *edn, authzid );
+                       }
+
+                       send_ldap_result( conn, op, rc = LDAP_SUCCESS,
+                               NULL, NULL, NULL, NULL );
+               }
+
+       } else if ( sc == SASL_CONTINUE ) {
+               send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
+                       NULL, NULL, NULL, NULL,  &response );
+       } 
+
+       if ( sc != SASL_CONTINUE && conn->c_sasl_bind_context != NULL ) {
+               sasl_dispose( &conn->c_sasl_bind_context );
+               conn->c_sasl_bind_context = NULL;
+       }
+
+       Debug(LDAP_DEBUG_TRACE, "<== sasl_bind: rc=%d\n", rc, 0, 0);
+
+       return rc;
+}
+#endif /* HAVE_CYRUS_SASL */
+
 #else
 /* no SASL support */
+int sasl_bind(
+    Connection          *conn,
+    Operation           *op,  
+    const char          *dn,  
+    const char          *ndn,
+    const char          *mech,
+    struct berval       *cred,
+       char                            **edn )
+{
+       int rc;
+
+       send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+               NULL, "SASL unavailable", NULL, NULL );
+
+       return rc;
+}
+
 int sasl_init( void ) { return 0; }
 int sasl_destroy( void ) { return 0; }
 #endif